/*****************************************************************************
 * libmp4.c : LibMP4 library for mp4 module for vlc
 *****************************************************************************
 * Copyright (C) 2001-2004, 2010 VLC authors and VideoLAN
 *
 * Author: Laurent Aimar <fenrir@via.ecp.fr>
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation; either version 2.1 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
 *****************************************************************************/

#ifdef HAVE_CONFIG_H
# include "config.h"
#endif

#include <vlc_common.h>
#include <vlc_stream.h>                               /* stream_Peek*/

#ifdef HAVE_ZLIB_H
#   include <zlib.h>                                  /* for compressed moov */
#endif

#include "libmp4.h"
#include "languages.h"
#include <math.h>

/* Some assumptions:
 * The input method HAS to be seekable
 */

/* convert 16.16 fixed point to floating point */
static double conv_fx( int32_t fx ) {
    double fp = fx;
    fp /= 65536.;
    return fp;
}

/* some functions for mp4 encoding of variables */
#ifdef MP4_VERBOSE
static void MP4_ConvertDate2Str( char *psz, uint64_t i_date, bool b_relative )
{
    int i_day;
    int i_hour;
    int i_min;
    int i_sec;

    /* date begin at 1 jan 1904 */
    if ( !b_relative )
        i_date += ((INT64_C(1904) * 365) + 17) * 24 * 60 * 60;

    i_day = i_date / ( 60*60*24);
    i_hour = ( i_date /( 60*60 ) ) % 60;
    i_min  = ( i_date / 60 ) % 60;
    i_sec =  i_date % 60;
    sprintf( psz, "%dd-%2.2dh:%2.2dm:%2.2ds", i_day, i_hour, i_min, i_sec );
}
#endif

/*****************************************************************************
 * Some prototypes.
 *****************************************************************************/
static MP4_Box_t *MP4_ReadBox( stream_t *p_stream, MP4_Box_t *p_father );


/*****************************************************************************
 * MP4_ReadBoxCommon : Load only common parameters for all boxes
 *****************************************************************************
 * p_box need to be an already allocated MP4_Box_t, and all data
 *  will only be peek not read
 *
 * RETURN : 0 if it fail, 1 otherwise
 *****************************************************************************/
int MP4_ReadBoxCommon( stream_t *p_stream, MP4_Box_t *p_box )
{
    int      i_read;
    const uint8_t  *p_peek;

    if( ( ( i_read = stream_Peek( p_stream, &p_peek, 32 ) ) < 8 ) )
    {
        return 0;
    }
    p_box->i_pos = stream_Tell( p_stream );

    p_box->data.p_payload = NULL;
    p_box->p_father = NULL;
    p_box->p_first  = NULL;
    p_box->p_last  = NULL;
    p_box->p_next   = NULL;

    MP4_GET4BYTES( p_box->i_shortsize );
    MP4_GETFOURCC( p_box->i_type );

    /* Now special case */

    if( p_box->i_shortsize == 1 )
    {
        if( i_read < 8 )
            return 0;
        /* get the true size on 64 bits */
        MP4_GET8BYTES( p_box->i_size );
    }
    else
    {
        p_box->i_size = p_box->i_shortsize;
        /* XXX size of 0 means that the box extends to end of file */
    }

    if( UINT64_MAX - p_box->i_size < p_box->i_pos )
        return 0;

    if( p_box->i_type == ATOM_uuid )
    {
        if( i_read < 16 )
            return 0;
        /* get extented type on 16 bytes */
        GetUUID( &p_box->i_uuid, p_peek );
    }
    else
    {
        CreateUUID( &p_box->i_uuid, p_box->i_type );
    }
#ifdef MP4_VERBOSE
    if( p_box->i_size )
    {
        if MP4_BOX_TYPE_ASCII()
            msg_Dbg( p_stream, "found Box: %4.4s size %"PRId64" %"PRId64,
                    (char*)&p_box->i_type, p_box->i_size, p_box->i_pos );
        else
            msg_Dbg( p_stream, "found Box: c%3.3s size %"PRId64,
                    (char*)&p_box->i_type+1, p_box->i_size );
    }
#endif

    return 1;
}

/*****************************************************************************
 * MP4_NextBox : Go to the next box
 *****************************************************************************
 * if p_box == NULL, go to the next box in which we are( at the begining ).
 *****************************************************************************/
static int MP4_NextBox( stream_t *p_stream, MP4_Box_t *p_box )
{
    MP4_Box_t box;

    if( !p_box )
    {
        MP4_ReadBoxCommon( p_stream, &box );
        p_box = &box;
    }

    if( !p_box->i_size )
    {
        return 2; /* Box with infinite size */
    }

    if( p_box->p_father )
    {
        /* if father's size == 0, it means unknown or infinite size,
         * and we skip the followong check */
        if( p_box->p_father->i_size > 0 )
        {
            const uint64_t i_box_end = p_box->i_size + p_box->i_pos;
            const uint64_t i_father_end = p_box->p_father->i_size + p_box->p_father->i_pos;

            /* check if it's within p-father */
            if( i_box_end >= i_father_end )
            {
                if( i_box_end > i_father_end )
                    msg_Dbg( p_stream, "out of bound child" );
                return 0; /* out of bound */
            }
        }
    }
    if( stream_Seek( p_stream, p_box->i_size + p_box->i_pos ) )
    {
        return 0;
    }

    return 1;
}

/*****************************************************************************
 * For all known box a loader is given,
 *  XXX: all common struct have to be already read by MP4_ReadBoxCommon
 *       after called one of theses functions, file position is unknown
 *       you need to call MP4_GotoBox to go where you want
 *****************************************************************************/
int MP4_ReadBoxContainerChildren( stream_t *p_stream,
                                  MP4_Box_t *p_container, uint32_t i_last_child )
{
    MP4_Box_t *p_box;

    /* Size of root container is set to 0 when unknown, for exemple
     * with a DASH stream. In that case, we skip the following check */
    int64_t i_tell = stream_Tell( p_stream );
    if( unlikely(i_tell < 0 || (UINT64_MAX - 8 < (uint64_t)i_tell)) )
        return 0;

    if( p_container->i_size && ( (uint64_t)i_tell + 8 >
        p_container->i_pos + p_container->i_size )
      )
    {
        /* there is no box to load */
        return 0;
    }

    do
    {
        if( ( p_box = MP4_ReadBox( p_stream, p_container ) ) == NULL ) break;

        /* chain this box with the father and the other at same level */
        if( !p_container->p_first ) p_container->p_first = p_box;
        else p_container->p_last->p_next = p_box;
        p_container->p_last = p_box;

        if( p_box->i_type == i_last_child )
        {
            MP4_NextBox( p_stream, p_box );
            break;
        }

    } while( MP4_NextBox( p_stream, p_box ) == 1 );

    return 1;
}

static int MP4_ReadBoxContainerRaw( stream_t *p_stream, MP4_Box_t *p_container )
{
    return MP4_ReadBoxContainerChildren( p_stream, p_container, 0 );
}

static int MP4_ReadBoxContainer( stream_t *p_stream, MP4_Box_t *p_container )
{
    if( p_container->i_size &&
        ( p_container->i_size <= (size_t)mp4_box_headersize(p_container ) + 8 ) )
    {
        /* container is empty, 8 stand for the first header in this box */
        return 1;
    }

    /* enter box */
    stream_Seek( p_stream, p_container->i_pos +
                 mp4_box_headersize( p_container ) );

    return MP4_ReadBoxContainerRaw( p_stream, p_container );
}

static void MP4_FreeBox_Common( MP4_Box_t *p_box )
{
    /* Up to now do nothing */
    (void)p_box;
}

static int MP4_ReadBoxSkip( stream_t *p_stream, MP4_Box_t *p_box )
{
    /* XXX sometime moov is hiden in a free box */
    if( p_box->p_father &&
        p_box->p_father->i_type == ATOM_root &&
        p_box->i_type == ATOM_free )
    {
        const uint8_t *p_peek;
        int     i_read;
        vlc_fourcc_t i_fcc;

        i_read  = stream_Peek( p_stream, &p_peek, 44 );

        p_peek += mp4_box_headersize( p_box ) + 4;
        i_read -= mp4_box_headersize( p_box ) + 4;

        if( i_read >= 8 )
        {
            i_fcc = VLC_FOURCC( p_peek[0], p_peek[1], p_peek[2], p_peek[3] );

            if( i_fcc == ATOM_cmov || i_fcc == ATOM_mvhd )
            {
                msg_Warn( p_stream, "detected moov hidden in a free box ..." );

                p_box->i_type = ATOM_foov;
                return MP4_ReadBoxContainer( p_stream, p_box );
            }
        }
    }

    /* Nothing to do */
#ifdef MP4_VERBOSE
    if MP4_BOX_TYPE_ASCII()
        msg_Dbg( p_stream, "skip box: \"%4.4s\"", (char*)&p_box->i_type );
    else
        msg_Dbg( p_stream, "skip box: \"c%3.3s\"", (char*)&p_box->i_type+1 );
#endif
    return 1;
}

static int MP4_ReadBox_ftyp( stream_t *p_stream, MP4_Box_t *p_box )
{
    MP4_READBOX_ENTER( MP4_Box_data_ftyp_t );

    MP4_GETFOURCC( p_box->data.p_ftyp->i_major_brand );
    MP4_GET4BYTES( p_box->data.p_ftyp->i_minor_version );

    if( ( p_box->data.p_ftyp->i_compatible_brands_count = i_read / 4 ) )
    {
        uint32_t *tab = p_box->data.p_ftyp->i_compatible_brands =
            calloc( p_box->data.p_ftyp->i_compatible_brands_count,
                    sizeof(uint32_t));

        if( unlikely( tab == NULL ) )
            MP4_READBOX_EXIT( 0 );

        for( unsigned i = 0; i < p_box->data.p_ftyp->i_compatible_brands_count; i++ )
        {
            MP4_GETFOURCC( tab[i] );
        }
    }
    else
    {
        p_box->data.p_ftyp->i_compatible_brands = NULL;
    }

    MP4_READBOX_EXIT( 1 );
}

static void MP4_FreeBox_ftyp( MP4_Box_t *p_box )
{
    FREENULL( p_box->data.p_ftyp->i_compatible_brands );
}


static int MP4_ReadBox_mvhd(  stream_t *p_stream, MP4_Box_t *p_box )
{
#ifdef MP4_VERBOSE
    char s_creation_time[128];
    char s_modification_time[128];
    char s_duration[128];
#endif
    MP4_READBOX_ENTER( MP4_Box_data_mvhd_t );

    MP4_GETVERSIONFLAGS( p_box->data.p_mvhd );

    if( p_box->data.p_mvhd->i_version )
    {
        MP4_GET8BYTES( p_box->data.p_mvhd->i_creation_time );
        MP4_GET8BYTES( p_box->data.p_mvhd->i_modification_time );
        MP4_GET4BYTES( p_box->data.p_mvhd->i_timescale );
        MP4_GET8BYTES( p_box->data.p_mvhd->i_duration );
    }
    else
    {
        MP4_GET4BYTES( p_box->data.p_mvhd->i_creation_time );
        MP4_GET4BYTES( p_box->data.p_mvhd->i_modification_time );
        MP4_GET4BYTES( p_box->data.p_mvhd->i_timescale );
        MP4_GET4BYTES( p_box->data.p_mvhd->i_duration );
    }
    MP4_GET4BYTES( p_box->data.p_mvhd->i_rate );
    MP4_GET2BYTES( p_box->data.p_mvhd->i_volume );
    MP4_GET2BYTES( p_box->data.p_mvhd->i_reserved1 );


    for( unsigned i = 0; i < 2; i++ )
    {
        MP4_GET4BYTES( p_box->data.p_mvhd->i_reserved2[i] );
    }
    for( unsigned i = 0; i < 9; i++ )
    {
        MP4_GET4BYTES( p_box->data.p_mvhd->i_matrix[i] );
    }
    for( unsigned i = 0; i < 6; i++ )
    {
        MP4_GET4BYTES( p_box->data.p_mvhd->i_predefined[i] );
    }

    MP4_GET4BYTES( p_box->data.p_mvhd->i_next_track_id );


#ifdef MP4_VERBOSE
    MP4_ConvertDate2Str( s_creation_time, p_box->data.p_mvhd->i_creation_time, false );
    MP4_ConvertDate2Str( s_modification_time,
                         p_box->data.p_mvhd->i_modification_time, false );
    if( p_box->data.p_mvhd->i_rate && p_box->data.p_mvhd->i_timescale )
    {
        MP4_ConvertDate2Str( s_duration, p_box->data.p_mvhd->i_duration / p_box->data.p_mvhd->i_timescale, true );
    }
    else
    {
        s_duration[0] = 0;
    }
    msg_Dbg( p_stream, "read box: \"mvhd\" creation %s modification %s time scale %d duration %s rate %f volume %f next track id %d",
                  s_creation_time,
                  s_modification_time,
                  (uint32_t)p_box->data.p_mvhd->i_timescale,
                  s_duration,
                  (float)p_box->data.p_mvhd->i_rate / (1<<16 ),
                  (float)p_box->data.p_mvhd->i_volume / 256 ,
                  (uint32_t)p_box->data.p_mvhd->i_next_track_id );
#endif
    MP4_READBOX_EXIT( 1 );
}

static int MP4_ReadBox_mfhd(  stream_t *p_stream, MP4_Box_t *p_box )
{
    MP4_READBOX_ENTER( MP4_Box_data_mfhd_t );

    MP4_GETVERSIONFLAGS( p_box->data.p_mvhd );

    MP4_GET4BYTES( p_box->data.p_mfhd->i_sequence_number );

#ifdef MP4_VERBOSE
    msg_Dbg( p_stream, "read box: \"mfhd\" sequence number %d",
                  p_box->data.p_mfhd->i_sequence_number );
#endif
    MP4_READBOX_EXIT( 1 );
}

static int MP4_ReadBox_tfxd(  stream_t *p_stream, MP4_Box_t *p_box )
{
    MP4_READBOX_ENTER( MP4_Box_data_tfxd_t );

    MP4_Box_data_tfxd_t *p_tfxd_data = p_box->data.p_tfxd;
    MP4_GETVERSIONFLAGS( p_tfxd_data );

    if( p_tfxd_data->i_version == 0 )
    {
        MP4_GET4BYTES( p_tfxd_data->i_fragment_abs_time );
        MP4_GET4BYTES( p_tfxd_data->i_fragment_duration );
    }
    else
    {
        MP4_GET8BYTES( p_tfxd_data->i_fragment_abs_time );
        MP4_GET8BYTES( p_tfxd_data->i_fragment_duration );
    }

#ifdef MP4_VERBOSE
    msg_Dbg( p_stream, "read box: \"tfxd\" version %d, flags 0x%x, "\
            "fragment duration %"PRIu64", fragment abs time %"PRIu64,
                p_tfxd_data->i_version,
                p_tfxd_data->i_flags,
                p_tfxd_data->i_fragment_duration,
                p_tfxd_data->i_fragment_abs_time
           );
#endif

    MP4_READBOX_EXIT( 1 );
}

static int MP4_ReadBox_tfrf(  stream_t *p_stream, MP4_Box_t *p_box )
{
    MP4_READBOX_ENTER( MP4_Box_data_tfxd_t );

    MP4_Box_data_tfrf_t *p_tfrf_data = p_box->data.p_tfrf;
    MP4_GETVERSIONFLAGS( p_tfrf_data );

    MP4_GET1BYTE( p_tfrf_data->i_fragment_count );

    p_tfrf_data->p_tfrf_data_fields = calloc( p_tfrf_data->i_fragment_count,
                                              sizeof( TfrfBoxDataFields_t ) );
    if( !p_tfrf_data->p_tfrf_data_fields )
        MP4_READBOX_EXIT( 0 );

    for( uint8_t i = 0; i < p_tfrf_data->i_fragment_count; i++ )
    {
        TfrfBoxDataFields_t *TfrfBoxDataField = &p_tfrf_data->p_tfrf_data_fields[i];
        if( p_tfrf_data->i_version == 0 )
        {
            MP4_GET4BYTES( TfrfBoxDataField->i_fragment_abs_time );
            MP4_GET4BYTES( TfrfBoxDataField->i_fragment_duration );
        }
        else
        {
            MP4_GET8BYTES( TfrfBoxDataField->i_fragment_abs_time );
            MP4_GET8BYTES( TfrfBoxDataField->i_fragment_duration );
        }
    }

#ifdef MP4_VERBOSE
    msg_Dbg( p_stream, "read box: \"tfrf\" version %d, flags 0x%x, "\
            "fragment count %"PRIu8, p_tfrf_data->i_version,
                p_tfrf_data->i_flags, p_tfrf_data->i_fragment_count );

    for( uint8_t i = 0; i < p_tfrf_data->i_fragment_count; i++ )
    {
        TfrfBoxDataFields_t *TfrfBoxDataField = &p_tfrf_data->p_tfrf_data_fields[i];
        msg_Dbg( p_stream, "\"tfrf\" fragment duration %"PRIu64", "\
                                    "fragment abs time %"PRIu64,
                    TfrfBoxDataField->i_fragment_duration,
                    TfrfBoxDataField->i_fragment_abs_time );
    }

#endif

    MP4_READBOX_EXIT( 1 );
}

static void MP4_FreeBox_tfrf( MP4_Box_t *p_box )
{
    FREENULL( p_box->data.p_tfrf->p_tfrf_data_fields );
}

static int MP4_ReadBox_stra( stream_t *p_stream, MP4_Box_t *p_box )
{
    MP4_READBOX_ENTER( MP4_Box_data_stra_t );
    MP4_Box_data_stra_t *p_stra = p_box->data.p_stra;

    uint8_t i_reserved;
    VLC_UNUSED(i_reserved);
    MP4_GET1BYTE( p_stra->i_es_cat );
    MP4_GET1BYTE( i_reserved );
    MP4_GET2BYTES( p_stra->i_track_ID );

    MP4_GET4BYTES( p_stra->i_timescale );
    MP4_GET8BYTES( p_stra->i_duration );

    MP4_GET4BYTES( p_stra->FourCC );
    MP4_GET4BYTES( p_stra->Bitrate );
    MP4_GET4BYTES( p_stra->MaxWidth );
    MP4_GET4BYTES( p_stra->MaxHeight );
    MP4_GET4BYTES( p_stra->SamplingRate );
    MP4_GET4BYTES( p_stra->Channels );
    MP4_GET4BYTES( p_stra->BitsPerSample );
    MP4_GET4BYTES( p_stra->AudioTag );
    MP4_GET2BYTES( p_stra->nBlockAlign );

    MP4_GET1BYTE( i_reserved );
    MP4_GET1BYTE( i_reserved );
    MP4_GET1BYTE( i_reserved );
    MP4_GET1BYTE( p_stra->cpd_len );
    if( p_stra->cpd_len > i_read )
        goto error;
    p_stra->CodecPrivateData = malloc( p_stra->cpd_len );
    if( unlikely( p_stra->CodecPrivateData == NULL ) )
        goto error;
    memcpy( p_stra->CodecPrivateData, p_peek, p_stra->cpd_len );

#ifdef MP4_VERBOSE
    msg_Dbg( p_stream, "es_cat is %"PRIu8", birate is %"PRIu32,
              p_stra->i_es_cat, p_stra->Bitrate );
#endif

    MP4_READBOX_EXIT( 1 );
error:
    MP4_READBOX_EXIT( 0 );
}

static void MP4_FreeBox_stra( MP4_Box_t *p_box )
{
    FREENULL( p_box->data.p_stra->CodecPrivateData );
}

static int MP4_ReadBox_uuid( stream_t *p_stream, MP4_Box_t *p_box )
{
    if( !CmpUUID( &p_box->i_uuid, &TfrfBoxUUID ) )
        return MP4_ReadBox_tfrf( p_stream, p_box );
    if( !CmpUUID( &p_box->i_uuid, &TfxdBoxUUID ) )
        return MP4_ReadBox_tfxd( p_stream, p_box );
    if( !CmpUUID( &p_box->i_uuid, &SmooBoxUUID ) )
        return MP4_ReadBoxContainer( p_stream, p_box );
    if( !CmpUUID( &p_box->i_uuid, &StraBoxUUID ) )
        return MP4_ReadBox_stra( p_stream, p_box );

    msg_Warn( p_stream, "Unknown uuid type box" );
    return 1;
}

static void MP4_FreeBox_uuid( MP4_Box_t *p_box )
{
    if( !CmpUUID( &p_box->i_uuid, &TfrfBoxUUID ) )
        return MP4_FreeBox_tfrf( p_box );
    if( !CmpUUID( &p_box->i_uuid, &TfxdBoxUUID ) )
        return MP4_FreeBox_Common( p_box );
    if( !CmpUUID( &p_box->i_uuid, &SmooBoxUUID ) )
        return MP4_FreeBox_Common( p_box );
    if( !CmpUUID( &p_box->i_uuid, &StraBoxUUID ) )
        return MP4_FreeBox_stra( p_box );
}

static int MP4_ReadBox_sidx(  stream_t *p_stream, MP4_Box_t *p_box )
{
    MP4_READBOX_ENTER( MP4_Box_data_sidx_t );

    MP4_Box_data_sidx_t *p_sidx_data = p_box->data.p_sidx;
    MP4_GETVERSIONFLAGS( p_sidx_data );

    MP4_GET4BYTES( p_sidx_data->i_reference_ID );
    MP4_GET4BYTES( p_sidx_data->i_timescale );

    if( p_sidx_data->i_version == 0 )
    {
        MP4_GET4BYTES( p_sidx_data->i_earliest_presentation_time );
        MP4_GET4BYTES( p_sidx_data->i_first_offset );
    }
    else
    {
        MP4_GET8BYTES( p_sidx_data->i_earliest_presentation_time );
        MP4_GET8BYTES( p_sidx_data->i_first_offset );
    }

    uint16_t i_reserved;
    VLC_UNUSED(i_reserved);
    MP4_GET2BYTES( i_reserved );
    MP4_GET2BYTES( p_sidx_data->i_reference_count );
    uint16_t i_count = p_sidx_data->i_reference_count;

    p_sidx_data->p_items = calloc( i_count, sizeof( MP4_Box_sidx_item_t ) );
    uint32_t tmp;
    for( unsigned i = 0; i < i_count; i++ )
    {
        MP4_GET4BYTES( tmp );
        p_sidx_data->p_items[i].b_reference_type = (bool)((tmp & 0x80000000)>>24);
        p_sidx_data->p_items[i].i_referenced_size = tmp & 0x7fffffff;
        MP4_GET4BYTES( p_sidx_data->p_items[i].i_subsegment_duration );

        MP4_GET4BYTES( tmp );
        p_sidx_data->p_items[i].b_starts_with_SAP = (bool)((tmp & 0x80000000)>>24);
        p_sidx_data->p_items[i].i_SAP_type = (tmp & 0x70000000)>>24;
        p_sidx_data->p_items[i].i_SAP_delta_time = tmp & 0xfffffff;
    }

#ifdef MP4_VERBOSE
    msg_Dbg( p_stream, "read box: \"sidx\" version %d, flags 0x%x, "\
            "ref_ID %"PRIu32", timescale %"PRIu32", ref_count %"PRIu16", "\
            "first subsegmt duration %"PRIu32,
                p_sidx_data->i_version,
                p_sidx_data->i_flags,
                p_sidx_data->i_reference_ID,
                p_sidx_data->i_timescale,
                p_sidx_data->i_reference_count,
                p_sidx_data->p_items[0].i_subsegment_duration
           );
#endif

    MP4_READBOX_EXIT( 1 );
}

static void MP4_FreeBox_sidx( MP4_Box_t *p_box )
{
    FREENULL( p_box->data.p_sidx->p_items );
}

static int MP4_ReadBox_tfhd(  stream_t *p_stream, MP4_Box_t *p_box )
{
    MP4_READBOX_ENTER( MP4_Box_data_tfhd_t );

    MP4_GETVERSIONFLAGS( p_box->data.p_tfhd );

    if( p_box->data.p_tfhd->i_version != 0 )
    {
        msg_Warn( p_stream, "'tfhd' box with version != 0. "\
                " Don't know what to do with that, please patch" );
        MP4_READBOX_EXIT( 0 );
    }

    MP4_GET4BYTES( p_box->data.p_tfhd->i_track_ID );

    if( p_box->data.p_tfhd->i_flags & MP4_TFHD_DURATION_IS_EMPTY )
    {
        msg_Dbg( p_stream, "'duration-is-empty' flag is present "\
                "=> no samples for this time interval." );
        p_box->data.p_tfhd->b_empty = true;
    }
    else
        p_box->data.p_tfhd->b_empty = false;

    if( p_box->data.p_tfhd->i_flags & MP4_TFHD_BASE_DATA_OFFSET )
        MP4_GET8BYTES( p_box->data.p_tfhd->i_base_data_offset );
    if( p_box->data.p_tfhd->i_flags & MP4_TFHD_SAMPLE_DESC_INDEX )
        MP4_GET4BYTES( p_box->data.p_tfhd->i_sample_description_index );
    if( p_box->data.p_tfhd->i_flags & MP4_TFHD_DFLT_SAMPLE_DURATION )
        MP4_GET4BYTES( p_box->data.p_tfhd->i_default_sample_duration );
    if( p_box->data.p_tfhd->i_flags & MP4_TFHD_DFLT_SAMPLE_SIZE )
        MP4_GET4BYTES( p_box->data.p_tfhd->i_default_sample_size );
    if( p_box->data.p_tfhd->i_flags & MP4_TFHD_DFLT_SAMPLE_FLAGS )
        MP4_GET4BYTES( p_box->data.p_tfhd->i_default_sample_flags );

#ifdef MP4_VERBOSE
    char psz_base[128] = "\0";
    char psz_desc[128] = "\0";
    char psz_dura[128] = "\0";
    char psz_size[128] = "\0";
    char psz_flag[128] = "\0";
    if( p_box->data.p_tfhd->i_flags & MP4_TFHD_BASE_DATA_OFFSET )
        snprintf(psz_base, sizeof(psz_base), "base offset %"PRId64, p_box->data.p_tfhd->i_base_data_offset);
    if( p_box->data.p_tfhd->i_flags & MP4_TFHD_SAMPLE_DESC_INDEX )
        snprintf(psz_desc, sizeof(psz_desc), "sample description index %d", p_box->data.p_tfhd->i_sample_description_index);
    if( p_box->data.p_tfhd->i_flags & MP4_TFHD_DFLT_SAMPLE_DURATION )
        snprintf(psz_dura, sizeof(psz_dura), "sample duration %d", p_box->data.p_tfhd->i_default_sample_duration);
    if( p_box->data.p_tfhd->i_flags & MP4_TFHD_DFLT_SAMPLE_SIZE )
        snprintf(psz_size, sizeof(psz_size), "sample size %d", p_box->data.p_tfhd->i_default_sample_size);
    if( p_box->data.p_tfhd->i_flags & MP4_TFHD_DFLT_SAMPLE_FLAGS )
        snprintf(psz_flag, sizeof(psz_flag), "sample flags 0x%x", p_box->data.p_tfhd->i_default_sample_flags);

    msg_Dbg( p_stream, "read box: \"tfhd\" version %d flags 0x%x track ID %d %s %s %s %s %s",
                p_box->data.p_tfhd->i_version,
                p_box->data.p_tfhd->i_flags,
                p_box->data.p_tfhd->i_track_ID,
                psz_base, psz_desc, psz_dura, psz_size, psz_flag );
#endif

    MP4_READBOX_EXIT( 1 );
}

static int MP4_ReadBox_trun(  stream_t *p_stream, MP4_Box_t *p_box )
{
    MP4_READBOX_ENTER( MP4_Box_data_trun_t );

    MP4_GETVERSIONFLAGS( p_box->data.p_trun );

    MP4_GET4BYTES( p_box->data.p_trun->i_sample_count );

    if( p_box->data.p_trun->i_flags & MP4_TRUN_DATA_OFFSET )
        MP4_GET4BYTES( p_box->data.p_trun->i_data_offset );
    if( p_box->data.p_trun->i_flags & MP4_TRUN_FIRST_FLAGS )
        MP4_GET4BYTES( p_box->data.p_trun->i_first_sample_flags );

    p_box->data.p_trun->p_samples =
      calloc( p_box->data.p_trun->i_sample_count, sizeof(MP4_descriptor_trun_sample_t) );
    if ( p_box->data.p_trun->p_samples == NULL )
        MP4_READBOX_EXIT( 0 );

    for( unsigned int i = 0; i<p_box->data.p_trun->i_sample_count; i++ )
    {
        MP4_descriptor_trun_sample_t *p_sample = &p_box->data.p_trun->p_samples[i];
        if( p_box->data.p_trun->i_flags & MP4_TRUN_SAMPLE_DURATION )
            MP4_GET4BYTES( p_sample->i_duration );
        if( p_box->data.p_trun->i_flags & MP4_TRUN_SAMPLE_SIZE )
            MP4_GET4BYTES( p_sample->i_size );
        if( p_box->data.p_trun->i_flags & MP4_TRUN_SAMPLE_FLAGS )
            MP4_GET4BYTES( p_sample->i_flags );
        if( p_box->data.p_trun->i_flags & MP4_TRUN_SAMPLE_TIME_OFFSET )
            MP4_GET4BYTES( p_sample->i_composition_time_offset );
    }

#ifdef MP4_VERBOSE
    msg_Dbg( p_stream, "read box: \"trun\" version %u flags 0x%x sample count %u",
                  p_box->data.p_trun->i_version,
                  p_box->data.p_trun->i_flags,
                  p_box->data.p_trun->i_sample_count );

    for( unsigned int i = 0; i<p_box->data.p_trun->i_sample_count; i++ )
    {
        MP4_descriptor_trun_sample_t *p_sample = &p_box->data.p_trun->p_samples[i];
        msg_Dbg( p_stream, "read box: \"trun\" sample %4.4u flags 0x%x "\
            "duration %"PRIu32" size %"PRIu32" composition time offset %"PRIu32,
                        i, p_sample->i_flags, p_sample->i_duration,
                        p_sample->i_size, p_sample->i_composition_time_offset );
    }
#endif

    MP4_READBOX_EXIT( 1 );
}

static void MP4_FreeBox_trun( MP4_Box_t *p_box )
{
    FREENULL( p_box->data.p_trun->p_samples );
}


static int MP4_ReadBox_tkhd(  stream_t *p_stream, MP4_Box_t *p_box )
{
#ifdef MP4_VERBOSE
    char s_creation_time[128];
    char s_modification_time[128];
    char s_duration[128];
#endif
    MP4_READBOX_ENTER( MP4_Box_data_tkhd_t );

    MP4_GETVERSIONFLAGS( p_box->data.p_tkhd );

    if( p_box->data.p_tkhd->i_version )
    {
        MP4_GET8BYTES( p_box->data.p_tkhd->i_creation_time );
        MP4_GET8BYTES( p_box->data.p_tkhd->i_modification_time );
        MP4_GET4BYTES( p_box->data.p_tkhd->i_track_ID );
        MP4_GET4BYTES( p_box->data.p_tkhd->i_reserved );
        MP4_GET8BYTES( p_box->data.p_tkhd->i_duration );
    }
    else
    {
        MP4_GET4BYTES( p_box->data.p_tkhd->i_creation_time );
        MP4_GET4BYTES( p_box->data.p_tkhd->i_modification_time );
        MP4_GET4BYTES( p_box->data.p_tkhd->i_track_ID );
        MP4_GET4BYTES( p_box->data.p_tkhd->i_reserved );
        MP4_GET4BYTES( p_box->data.p_tkhd->i_duration );
    }

    for( unsigned i = 0; i < 2; i++ )
    {
        MP4_GET4BYTES( p_box->data.p_tkhd->i_reserved2[i] );
    }
    MP4_GET2BYTES( p_box->data.p_tkhd->i_layer );
    MP4_GET2BYTES( p_box->data.p_tkhd->i_predefined );
    MP4_GET2BYTES( p_box->data.p_tkhd->i_volume );
    MP4_GET2BYTES( p_box->data.p_tkhd->i_reserved3 );

    for( unsigned i = 0; i < 9; i++ )
    {
        MP4_GET4BYTES( p_box->data.p_tkhd->i_matrix[i] );
    }
    MP4_GET4BYTES( p_box->data.p_tkhd->i_width );
    MP4_GET4BYTES( p_box->data.p_tkhd->i_height );

    double rotation;    //angle in degrees to be rotated clockwise
    double scale[2];    // scale factor; sx = scale[0] , sy = scale[1]
    double translate[2];// amount to translate; tx = translate[0] , ty = translate[1]

    int32_t *matrix = p_box->data.p_tkhd->i_matrix;

    translate[0] = conv_fx(matrix[6]);
    translate[1] = conv_fx(matrix[7]);

    scale[0] = sqrt(conv_fx(matrix[0]) * conv_fx(matrix[0]) +
                    conv_fx(matrix[3]) * conv_fx(matrix[3]));
    scale[1] = sqrt(conv_fx(matrix[1]) * conv_fx(matrix[1]) +
                    conv_fx(matrix[4]) * conv_fx(matrix[4]));

    rotation = atan2(conv_fx(matrix[1]) / scale[1], conv_fx(matrix[0]) / scale[0]) * 180 / M_PI;

    if (rotation < 0)
        rotation += 360.;

    p_box->data.p_tkhd->f_rotation = rotation;

#ifdef MP4_VERBOSE
    MP4_ConvertDate2Str( s_creation_time, p_box->data.p_mvhd->i_creation_time, false );
    MP4_ConvertDate2Str( s_modification_time, p_box->data.p_mvhd->i_modification_time, false );
    MP4_ConvertDate2Str( s_duration, p_box->data.p_mvhd->i_duration, true );

    msg_Dbg( p_stream, "read box: \"tkhd\" creation %s modification %s duration %s track ID %d layer %d volume %f rotation %f scaleX %f scaleY %f translateX %f translateY %f width %f height %f. "
            "Matrix: %i %i %i %i %i %i %i %i %i",
                  s_creation_time,
                  s_modification_time,
                  s_duration,
                  p_box->data.p_tkhd->i_track_ID,
                  p_box->data.p_tkhd->i_layer,
                  (float)p_box->data.p_tkhd->i_volume / 256 ,
                  rotation,
                  scale[0],
                  scale[1],
                  translate[0],
                  translate[1],
                  (float)p_box->data.p_tkhd->i_width / BLOCK16x16,
                  (float)p_box->data.p_tkhd->i_height / BLOCK16x16,
                  p_box->data.p_tkhd->i_matrix[0],
                  p_box->data.p_tkhd->i_matrix[1],
                  p_box->data.p_tkhd->i_matrix[2],
                  p_box->data.p_tkhd->i_matrix[3],
                  p_box->data.p_tkhd->i_matrix[4],
                  p_box->data.p_tkhd->i_matrix[5],
                  p_box->data.p_tkhd->i_matrix[6],
                  p_box->data.p_tkhd->i_matrix[7],
                  p_box->data.p_tkhd->i_matrix[8] );
#endif
    MP4_READBOX_EXIT( 1 );
}


static int MP4_ReadBox_mdhd( stream_t *p_stream, MP4_Box_t *p_box )
{
    uint16_t i_language;
#ifdef MP4_VERBOSE
    char s_creation_time[128];
    char s_modification_time[128];
    char s_duration[128];
#endif
    MP4_READBOX_ENTER( MP4_Box_data_mdhd_t );

    MP4_GETVERSIONFLAGS( p_box->data.p_mdhd );

    if( p_box->data.p_mdhd->i_version )
    {
        MP4_GET8BYTES( p_box->data.p_mdhd->i_creation_time );
        MP4_GET8BYTES( p_box->data.p_mdhd->i_modification_time );
        MP4_GET4BYTES( p_box->data.p_mdhd->i_timescale );
        MP4_GET8BYTES( p_box->data.p_mdhd->i_duration );
    }
    else
    {
        MP4_GET4BYTES( p_box->data.p_mdhd->i_creation_time );
        MP4_GET4BYTES( p_box->data.p_mdhd->i_modification_time );
        MP4_GET4BYTES( p_box->data.p_mdhd->i_timescale );
        MP4_GET4BYTES( p_box->data.p_mdhd->i_duration );
    }

    MP4_GET2BYTES( i_language );
    decodeQtLanguageCode( i_language, p_box->data.p_mdhd->rgs_language,
                          &p_box->data.p_mdhd->b_mac_encoding );

    MP4_GET2BYTES( p_box->data.p_mdhd->i_predefined );

#ifdef MP4_VERBOSE
    MP4_ConvertDate2Str( s_creation_time, p_box->data.p_mdhd->i_creation_time, false );
    MP4_ConvertDate2Str( s_modification_time, p_box->data.p_mdhd->i_modification_time, false );
    MP4_ConvertDate2Str( s_duration, p_box->data.p_mdhd->i_duration, true );
    msg_Dbg( p_stream, "read box: \"mdhd\" creation %s modification %s time scale %d duration %s language %3.3s",
                  s_creation_time,
                  s_modification_time,
                  (uint32_t)p_box->data.p_mdhd->i_timescale,
                  s_duration,
                  (char*) &p_box->data.p_mdhd->rgs_language );
#endif
    MP4_READBOX_EXIT( 1 );
}


static int MP4_ReadBox_hdlr( stream_t *p_stream, MP4_Box_t *p_box )
{
    int32_t i_reserved;
    VLC_UNUSED(i_reserved);

    MP4_READBOX_ENTER( MP4_Box_data_hdlr_t );

    MP4_GETVERSIONFLAGS( p_box->data.p_hdlr );

    MP4_GETFOURCC( p_box->data.p_hdlr->i_predefined );
    MP4_GETFOURCC( p_box->data.p_hdlr->i_handler_type );

    MP4_GET4BYTES( i_reserved );
    MP4_GET4BYTES( i_reserved );
    MP4_GET4BYTES( i_reserved );
    p_box->data.p_hdlr->psz_name = NULL;

    if( i_read > 0 )
    {
        uint8_t *psz = p_box->data.p_hdlr->psz_name = malloc( i_read + 1 );
        if( unlikely( psz == NULL ) )
            MP4_READBOX_EXIT( 0 );

        /* Yes, I love .mp4 :( */
        if( p_box->data.p_hdlr->i_predefined == VLC_FOURCC( 'm', 'h', 'l', 'r' ) )
        {
            uint8_t i_len;
            int i_copy;

            MP4_GET1BYTE( i_len );
            i_copy = __MIN( i_read, i_len );

            memcpy( psz, p_peek, i_copy );
            p_box->data.p_hdlr->psz_name[i_copy] = '\0';
        }
        else
        {
            memcpy( psz, p_peek, i_read );
            p_box->data.p_hdlr->psz_name[i_read] = '\0';
        }
    }

#ifdef MP4_VERBOSE
        msg_Dbg( p_stream, "read box: \"hdlr\" handler type: \"%4.4s\" name: \"%s\"",
                   (char*)&p_box->data.p_hdlr->i_handler_type,
                   p_box->data.p_hdlr->psz_name );

#endif
    MP4_READBOX_EXIT( 1 );
}

static void MP4_FreeBox_hdlr( MP4_Box_t *p_box )
{
    FREENULL( p_box->data.p_hdlr->psz_name );
}

static int MP4_ReadBox_vmhd( stream_t *p_stream, MP4_Box_t *p_box )
{
    MP4_READBOX_ENTER( MP4_Box_data_vmhd_t );

    MP4_GETVERSIONFLAGS( p_box->data.p_vmhd );

    MP4_GET2BYTES( p_box->data.p_vmhd->i_graphics_mode );
    for( unsigned i = 0; i < 3; i++ )
    {
        MP4_GET2BYTES( p_box->data.p_vmhd->i_opcolor[i] );
    }

#ifdef MP4_VERBOSE
    msg_Dbg( p_stream, "read box: \"vmhd\" graphics-mode %d opcolor (%d, %d, %d)",
                      p_box->data.p_vmhd->i_graphics_mode,
                      p_box->data.p_vmhd->i_opcolor[0],
                      p_box->data.p_vmhd->i_opcolor[1],
                      p_box->data.p_vmhd->i_opcolor[2] );
#endif
    MP4_READBOX_EXIT( 1 );
}

static int MP4_ReadBox_smhd( stream_t *p_stream, MP4_Box_t *p_box )
{
    MP4_READBOX_ENTER( MP4_Box_data_smhd_t );

    MP4_GETVERSIONFLAGS( p_box->data.p_smhd );



    MP4_GET2BYTES( p_box->data.p_smhd->i_balance );

    MP4_GET2BYTES( p_box->data.p_smhd->i_reserved );

#ifdef MP4_VERBOSE
    msg_Dbg( p_stream, "read box: \"smhd\" balance %f",
                      (float)p_box->data.p_smhd->i_balance / 256 );
#endif
    MP4_READBOX_EXIT( 1 );
}


static int MP4_ReadBox_hmhd( stream_t *p_stream, MP4_Box_t *p_box )
{
    MP4_READBOX_ENTER( MP4_Box_data_hmhd_t );

    MP4_GETVERSIONFLAGS( p_box->data.p_hmhd );

    MP4_GET2BYTES( p_box->data.p_hmhd->i_max_PDU_size );
    MP4_GET2BYTES( p_box->data.p_hmhd->i_avg_PDU_size );

    MP4_GET4BYTES( p_box->data.p_hmhd->i_max_bitrate );
    MP4_GET4BYTES( p_box->data.p_hmhd->i_avg_bitrate );

    MP4_GET4BYTES( p_box->data.p_hmhd->i_reserved );

#ifdef MP4_VERBOSE
    msg_Dbg( p_stream, "read box: \"hmhd\" maxPDU-size %d avgPDU-size %d max-bitrate %d avg-bitrate %d",
                      p_box->data.p_hmhd->i_max_PDU_size,
                      p_box->data.p_hmhd->i_avg_PDU_size,
                      p_box->data.p_hmhd->i_max_bitrate,
                      p_box->data.p_hmhd->i_avg_bitrate );
#endif
    MP4_READBOX_EXIT( 1 );
}

static int MP4_ReadBox_url( stream_t *p_stream, MP4_Box_t *p_box )
{
    MP4_READBOX_ENTER( MP4_Box_data_url_t );

    MP4_GETVERSIONFLAGS( p_box->data.p_url );
    MP4_GETSTRINGZ( p_box->data.p_url->psz_location );

#ifdef MP4_VERBOSE
    msg_Dbg( p_stream, "read box: \"url\" url: %s",
                       p_box->data.p_url->psz_location );

#endif
    MP4_READBOX_EXIT( 1 );
}


static void MP4_FreeBox_url( MP4_Box_t *p_box )
{
    FREENULL( p_box->data.p_url->psz_location );
}

static int MP4_ReadBox_urn( stream_t *p_stream, MP4_Box_t *p_box )
{
    MP4_READBOX_ENTER( MP4_Box_data_urn_t );

    MP4_GETVERSIONFLAGS( p_box->data.p_urn );

    MP4_GETSTRINGZ( p_box->data.p_urn->psz_name );
    MP4_GETSTRINGZ( p_box->data.p_urn->psz_location );

#ifdef MP4_VERBOSE
    msg_Dbg( p_stream, "read box: \"urn\" name %s location %s",
                      p_box->data.p_urn->psz_name,
                      p_box->data.p_urn->psz_location );
#endif
    MP4_READBOX_EXIT( 1 );
}
static void MP4_FreeBox_urn( MP4_Box_t *p_box )
{
    FREENULL( p_box->data.p_urn->psz_name );
    FREENULL( p_box->data.p_urn->psz_location );
}


static int MP4_ReadBox_dref( stream_t *p_stream, MP4_Box_t *p_box )
{
    MP4_READBOX_ENTER( MP4_Box_data_dref_t );

    MP4_GETVERSIONFLAGS( p_box->data.p_dref );

    MP4_GET4BYTES( p_box->data.p_dref->i_entry_count );

    stream_Seek( p_stream, p_box->i_pos + mp4_box_headersize( p_box ) + 8 );
    MP4_ReadBoxContainerRaw( p_stream, p_box );

#ifdef MP4_VERBOSE
    msg_Dbg( p_stream, "read box: \"dref\" entry-count %d",
                      p_box->data.p_dref->i_entry_count );

#endif
    MP4_READBOX_EXIT( 1 );
}

static void MP4_FreeBox_stts( MP4_Box_t *p_box )
{
    FREENULL( p_box->data.p_stts->pi_sample_count );
    FREENULL( p_box->data.p_stts->pi_sample_delta );
}

static int MP4_ReadBox_stts( stream_t *p_stream, MP4_Box_t *p_box )
{
    MP4_READBOX_ENTER( MP4_Box_data_stts_t );

    MP4_GETVERSIONFLAGS( p_box->data.p_stts );
    MP4_GET4BYTES( p_box->data.p_stts->i_entry_count );

    p_box->data.p_stts->pi_sample_count =
        calloc( p_box->data.p_stts->i_entry_count, sizeof(uint32_t) );
    p_box->data.p_stts->pi_sample_delta =
        calloc( p_box->data.p_stts->i_entry_count, sizeof(int32_t) );
    if( p_box->data.p_stts->pi_sample_count == NULL
     || p_box->data.p_stts->pi_sample_delta == NULL )
    {
        MP4_READBOX_EXIT( 0 );
    }

    uint32_t i = 0;
    for( ; (i < p_box->data.p_stts->i_entry_count )&&( i_read >=8 ); i++ )
    {
        MP4_GET4BYTES( p_box->data.p_stts->pi_sample_count[i] );
        MP4_GET4BYTES( p_box->data.p_stts->pi_sample_delta[i] );
    }

    if ( i < p_box->data.p_stts->i_entry_count )
        p_box->data.p_stts->i_entry_count = i;

#ifdef MP4_VERBOSE
    msg_Dbg( p_stream, "read box: \"stts\" entry-count %d",
                      p_box->data.p_stts->i_entry_count );

#endif
    MP4_READBOX_EXIT( 1 );
}


static void MP4_FreeBox_ctts( MP4_Box_t *p_box )
{
    FREENULL( p_box->data.p_ctts->pi_sample_count );
    FREENULL( p_box->data.p_ctts->pi_sample_offset );
}

static int MP4_ReadBox_ctts( stream_t *p_stream, MP4_Box_t *p_box )
{
    MP4_READBOX_ENTER( MP4_Box_data_ctts_t );

    MP4_GETVERSIONFLAGS( p_box->data.p_ctts );

    MP4_GET4BYTES( p_box->data.p_ctts->i_entry_count );

    p_box->data.p_ctts->pi_sample_count =
        calloc( p_box->data.p_ctts->i_entry_count, sizeof(uint32_t) );
    p_box->data.p_ctts->pi_sample_offset =
        calloc( p_box->data.p_ctts->i_entry_count, sizeof(int32_t) );
    if( ( p_box->data.p_ctts->pi_sample_count == NULL )
     || ( p_box->data.p_ctts->pi_sample_offset == NULL ) )
    {
        MP4_READBOX_EXIT( 0 );
    }

    uint32_t i = 0;
    for( ; (i < p_box->data.p_ctts->i_entry_count )&&( i_read >=8 ); i++ )
    {
        MP4_GET4BYTES( p_box->data.p_ctts->pi_sample_count[i] );
        MP4_GET4BYTES( p_box->data.p_ctts->pi_sample_offset[i] );
    }
    if ( i < p_box->data.p_ctts->i_entry_count )
        p_box->data.p_ctts->i_entry_count = i;

#ifdef MP4_VERBOSE
    msg_Dbg( p_stream, "read box: \"ctts\" entry-count %d",
                      p_box->data.p_ctts->i_entry_count );

#endif
    MP4_READBOX_EXIT( 1 );
}


static int MP4_ReadLengthDescriptor( uint8_t **pp_peek, int64_t  *i_read )
{
    unsigned int i_b;
    unsigned int i_len = 0;
    do
    {
        i_b = **pp_peek;

        (*pp_peek)++;
        (*i_read)--;
        i_len = ( i_len << 7 ) + ( i_b&0x7f );
    } while( i_b&0x80 );
    return( i_len );
}


static void MP4_FreeBox_esds( MP4_Box_t *p_box )
{
    FREENULL( p_box->data.p_esds->es_descriptor.psz_URL );
    if( p_box->data.p_esds->es_descriptor.p_decConfigDescr )
    {
        FREENULL( p_box->data.p_esds->es_descriptor.p_decConfigDescr->p_decoder_specific_info );
        FREENULL( p_box->data.p_esds->es_descriptor.p_decConfigDescr );
    }
}

static int MP4_ReadBox_esds( stream_t *p_stream, MP4_Box_t *p_box )
{
#define es_descriptor p_box->data.p_esds->es_descriptor
    unsigned int i_len;
    unsigned int i_flags;
    unsigned int i_type;

    MP4_READBOX_ENTER( MP4_Box_data_esds_t );

    MP4_GETVERSIONFLAGS( p_box->data.p_esds );


    MP4_GET1BYTE( i_type );
    if( i_type == 0x03 ) /* MP4ESDescrTag */
    {
        i_len = MP4_ReadLengthDescriptor( &p_peek, &i_read );

#ifdef MP4_VERBOSE
        msg_Dbg( p_stream, "found esds MPEG4ESDescr (%dBytes)",
                 i_len );
#endif

        MP4_GET2BYTES( es_descriptor.i_ES_ID );
        MP4_GET1BYTE( i_flags );
        es_descriptor.b_stream_dependence = ( (i_flags&0x80) != 0);
        es_descriptor.b_url = ( (i_flags&0x40) != 0);
        es_descriptor.b_OCRstream = ( (i_flags&0x20) != 0);

        es_descriptor.i_stream_priority = i_flags&0x1f;
        if( es_descriptor.b_stream_dependence )
        {
            MP4_GET2BYTES( es_descriptor.i_depend_on_ES_ID );
        }
        if( es_descriptor.b_url && i_read > 0 )
        {
            uint8_t i_url;

            MP4_GET1BYTE( i_url );
            if( i_url > i_read )
                MP4_READBOX_EXIT( 1 );
            es_descriptor.psz_URL = malloc( (unsigned) i_url + 1 );
            if( es_descriptor.psz_URL )
            {
                memcpy( es_descriptor.psz_URL, p_peek, i_url );
                es_descriptor.psz_URL[i_url] = 0;
            }
            p_peek += i_url;
            i_read -= i_url;
        }
        else
        {
            es_descriptor.psz_URL = NULL;
        }
        if( es_descriptor.b_OCRstream )
        {
            MP4_GET2BYTES( es_descriptor.i_OCR_ES_ID );
        }
        MP4_GET1BYTE( i_type ); /* get next type */
    }

    if( i_type != 0x04)/* MP4DecConfigDescrTag */
    {
         es_descriptor.p_decConfigDescr = NULL;
         MP4_READBOX_EXIT( 1 ); /* rest isn't interesting up to now */
    }

    i_len = MP4_ReadLengthDescriptor( &p_peek, &i_read );

#ifdef MP4_VERBOSE
        msg_Dbg( p_stream, "found esds MP4DecConfigDescr (%dBytes)",
                 i_len );
#endif

    es_descriptor.p_decConfigDescr =
            calloc( 1, sizeof( MP4_descriptor_decoder_config_t ));
    if( unlikely( es_descriptor.p_decConfigDescr == NULL ) )
        MP4_READBOX_EXIT( 0 );

    MP4_GET1BYTE( es_descriptor.p_decConfigDescr->i_objectTypeIndication );
    MP4_GET1BYTE( i_flags );
    es_descriptor.p_decConfigDescr->i_streamType = i_flags >> 2;
    es_descriptor.p_decConfigDescr->b_upStream = ( i_flags >> 1 )&0x01;
    MP4_GET3BYTES( es_descriptor.p_decConfigDescr->i_buffer_sizeDB );
    MP4_GET4BYTES( es_descriptor.p_decConfigDescr->i_max_bitrate );
    MP4_GET4BYTES( es_descriptor.p_decConfigDescr->i_avg_bitrate );
    MP4_GET1BYTE( i_type );
    if( i_type !=  0x05 )/* MP4DecSpecificDescrTag */
    {
        es_descriptor.p_decConfigDescr->i_decoder_specific_info_len = 0;
        es_descriptor.p_decConfigDescr->p_decoder_specific_info  = NULL;
        MP4_READBOX_EXIT( 1 );
    }

    i_len = MP4_ReadLengthDescriptor( &p_peek, &i_read );

#ifdef MP4_VERBOSE
        msg_Dbg( p_stream, "found esds MP4DecSpecificDescr (%dBytes)",
                 i_len );
#endif
    if( i_len > i_read )
        MP4_READBOX_EXIT( 0 );

    es_descriptor.p_decConfigDescr->i_decoder_specific_info_len = i_len;
    es_descriptor.p_decConfigDescr->p_decoder_specific_info = malloc( i_len );
    if( unlikely( es_descriptor.p_decConfigDescr->p_decoder_specific_info == NULL ) )
        MP4_READBOX_EXIT( 0 );

    memcpy( es_descriptor.p_decConfigDescr->p_decoder_specific_info,
            p_peek, i_len );

    MP4_READBOX_EXIT( 1 );
#undef es_descriptor
}

static void MP4_FreeBox_hvcC(MP4_Box_t *p_box )
{
    MP4_Box_data_hvcC_t *p_hvcC =  p_box->data.p_hvcC;
    if( p_hvcC->i_hvcC > 0 ) FREENULL( p_hvcC->p_hvcC) ;
}

static int MP4_ReadBox_hvcC( stream_t *p_stream, MP4_Box_t *p_box )
{
    MP4_Box_data_hvcC_t *p_hvcC;

    MP4_READBOX_ENTER( MP4_Box_data_hvcC_t );
    p_hvcC = p_box->data.p_hvcC;

    p_hvcC->i_hvcC = i_read;
    if( p_hvcC->i_hvcC > 0 )
    {
        uint8_t * p = p_hvcC->p_hvcC = malloc( p_hvcC->i_hvcC );
        if( p )
            memcpy( p, p_peek, i_read );
    }
    MP4_READBOX_EXIT( 1 );
}

static void MP4_FreeBox_avcC( MP4_Box_t *p_box )
{
    MP4_Box_data_avcC_t *p_avcC = p_box->data.p_avcC;
    int i;

    if( p_avcC->i_avcC > 0 ) FREENULL( p_avcC->p_avcC );

    if( p_avcC->sps )
    {
        for( i = 0; i < p_avcC->i_sps; i++ )
            FREENULL( p_avcC->sps[i] );
    }
    if( p_avcC->pps )
    {
        for( i = 0; i < p_avcC->i_pps; i++ )
            FREENULL( p_avcC->pps[i] );
    }
    if( p_avcC->i_sps > 0 ) FREENULL( p_avcC->sps );
    if( p_avcC->i_sps > 0 ) FREENULL( p_avcC->i_sps_length );
    if( p_avcC->i_pps > 0 ) FREENULL( p_avcC->pps );
    if( p_avcC->i_pps > 0 ) FREENULL( p_avcC->i_pps_length );
}

static int MP4_ReadBox_avcC( stream_t *p_stream, MP4_Box_t *p_box )
{
    MP4_Box_data_avcC_t *p_avcC;
    int i;

    MP4_READBOX_ENTER( MP4_Box_data_avcC_t );
    p_avcC = p_box->data.p_avcC;

    p_avcC->i_avcC = i_read;
    if( p_avcC->i_avcC > 0 )
    {
        uint8_t * p = p_avcC->p_avcC = malloc( p_avcC->i_avcC );
        if( p )
            memcpy( p, p_peek, i_read );
    }

    MP4_GET1BYTE( p_avcC->i_version );
    MP4_GET1BYTE( p_avcC->i_profile );
    MP4_GET1BYTE( p_avcC->i_profile_compatibility );
    MP4_GET1BYTE( p_avcC->i_level );
    MP4_GET1BYTE( p_avcC->i_reserved1 );
    p_avcC->i_length_size = (p_avcC->i_reserved1&0x03) + 1;
    p_avcC->i_reserved1 >>= 2;

    MP4_GET1BYTE( p_avcC->i_reserved2 );
    p_avcC->i_sps = p_avcC->i_reserved2&0x1f;
    p_avcC->i_reserved2 >>= 5;

    if( p_avcC->i_sps > 0 )
    {
        p_avcC->i_sps_length = calloc( p_avcC->i_sps, sizeof( uint16_t ) );
        p_avcC->sps = calloc( p_avcC->i_sps, sizeof( uint8_t* ) );

        if( !p_avcC->i_sps_length || !p_avcC->sps )
            goto error;

        for( i = 0; i < p_avcC->i_sps && i_read > 2; i++ )
        {
            MP4_GET2BYTES( p_avcC->i_sps_length[i] );
            if ( p_avcC->i_sps_length[i] > i_read )
                goto error;
            p_avcC->sps[i] = malloc( p_avcC->i_sps_length[i] );
            if( p_avcC->sps[i] )
                memcpy( p_avcC->sps[i], p_peek, p_avcC->i_sps_length[i] );

            p_peek += p_avcC->i_sps_length[i];
            i_read -= p_avcC->i_sps_length[i];
        }
        if ( i != p_avcC->i_sps )
            goto error;
    }

    MP4_GET1BYTE( p_avcC->i_pps );
    if( p_avcC->i_pps > 0 )
    {
        p_avcC->i_pps_length = calloc( p_avcC->i_pps, sizeof( uint16_t ) );
        p_avcC->pps = calloc( p_avcC->i_pps, sizeof( uint8_t* ) );

        if( !p_avcC->i_pps_length || !p_avcC->pps )
            goto error;

        for( i = 0; i < p_avcC->i_pps && i_read > 2; i++ )
        {
            MP4_GET2BYTES( p_avcC->i_pps_length[i] );
            if( p_avcC->i_pps_length[i] > i_read )
                goto error;
            p_avcC->pps[i] = malloc( p_avcC->i_pps_length[i] );
            if( p_avcC->pps[i] )
                memcpy( p_avcC->pps[i], p_peek, p_avcC->i_pps_length[i] );

            p_peek += p_avcC->i_pps_length[i];
            i_read -= p_avcC->i_pps_length[i];
        }
        if ( i != p_avcC->i_pps )
            goto error;
    }
#ifdef MP4_VERBOSE
    msg_Dbg( p_stream,
             "read box: \"avcC\" version=%d profile=0x%x level=0x%x length size=%d sps=%d pps=%d",
             p_avcC->i_version, p_avcC->i_profile, p_avcC->i_level,
             p_avcC->i_length_size,
             p_avcC->i_sps, p_avcC->i_pps );
    for( i = 0; i < p_avcC->i_sps; i++ )
    {
        msg_Dbg( p_stream, "         - sps[%d] length=%d",
                 i, p_avcC->i_sps_length[i] );
    }
    for( i = 0; i < p_avcC->i_pps; i++ )
    {
        msg_Dbg( p_stream, "         - pps[%d] length=%d",
                 i, p_avcC->i_pps_length[i] );
    }

#endif
    MP4_READBOX_EXIT( 1 );

error:
    MP4_FreeBox_avcC( p_box );
    MP4_READBOX_EXIT( 0 );
}

static int MP4_ReadBox_dac3( stream_t *p_stream, MP4_Box_t *p_box )
{
    MP4_Box_data_dac3_t *p_dac3;
    MP4_READBOX_ENTER( MP4_Box_data_dac3_t );

    p_dac3 = p_box->data.p_dac3;

    unsigned i_header;
    MP4_GET3BYTES( i_header );

    p_dac3->i_fscod = ( i_header >> 22 ) & 0x03;
    p_dac3->i_bsid  = ( i_header >> 17 ) & 0x01f;
    p_dac3->i_bsmod = ( i_header >> 14 ) & 0x07;
    p_dac3->i_acmod = ( i_header >> 11 ) & 0x07;
    p_dac3->i_lfeon = ( i_header >> 10 ) & 0x01;
    p_dac3->i_bitrate_code = ( i_header >> 5) & 0x1f;

#ifdef MP4_VERBOSE
    msg_Dbg( p_stream,
             "read box: \"dac3\" fscod=0x%x bsid=0x%x bsmod=0x%x acmod=0x%x lfeon=0x%x bitrate_code=0x%x",
             p_dac3->i_fscod, p_dac3->i_bsid, p_dac3->i_bsmod, p_dac3->i_acmod, p_dac3->i_lfeon, p_dac3->i_bitrate_code );
#endif
    MP4_READBOX_EXIT( 1 );
}

static int MP4_ReadBox_dvc1( stream_t *p_stream, MP4_Box_t *p_box )
{
    MP4_Box_data_dvc1_t *p_dvc1;

    MP4_READBOX_ENTER( MP4_Box_data_dvc1_t );
    p_dvc1 = p_box->data.p_dvc1;

    MP4_GET1BYTE( p_dvc1->i_profile_level ); /* profile is on 4bits, level 3bits */
    uint8_t i_profile = (p_dvc1->i_profile_level & 0xf0) >> 4;
    if( i_profile != 0x06 && i_profile != 0x0c )
    {
        msg_Warn( p_stream, "unsupported VC-1 profile (%"PRIu8"), please report", i_profile );
        MP4_READBOX_EXIT( 0 );
    }


    p_dvc1->i_vc1 = p_box->i_size - 7; /* Header + profile_level */

    if( p_dvc1->i_vc1 > 0 )
    {
        uint8_t *p = p_dvc1->p_vc1 = malloc( p_dvc1->i_vc1 );
        if( p )
            memcpy( p, p_peek, i_read );
    }

#ifdef MP4_VERBOSE
    msg_Dbg( p_stream,
             "read box: \"dvc1\" profile=%"PRIu8" level=%i",
             i_profile, p_dvc1->i_profile_level & 0x0e >> 1 );
#endif

    MP4_READBOX_EXIT( 1 );
}

static int MP4_ReadBox_enda( stream_t *p_stream, MP4_Box_t *p_box )
{
    MP4_Box_data_enda_t *p_enda;
    MP4_READBOX_ENTER( MP4_Box_data_enda_t );

    p_enda = p_box->data.p_enda;

    MP4_GET2BYTES( p_enda->i_little_endian );

#ifdef MP4_VERBOSE
    msg_Dbg( p_stream,
             "read box: \"enda\" little_endian=%d", p_enda->i_little_endian );
#endif
    MP4_READBOX_EXIT( 1 );
}

static int MP4_ReadBox_gnre( stream_t *p_stream, MP4_Box_t *p_box )
{
    MP4_Box_data_gnre_t *p_gnre;
    MP4_READBOX_ENTER( MP4_Box_data_gnre_t );

    p_gnre = p_box->data.p_gnre;

    uint32_t i_data_len;
    uint32_t i_data_tag;

    MP4_GET4BYTES( i_data_len );
    MP4_GETFOURCC( i_data_tag );
    if( i_data_len < 10 || i_data_tag != ATOM_data )
        MP4_READBOX_EXIT( 0 );

    uint32_t i_version;
    VLC_UNUSED(i_version);
    uint32_t i_reserved;
    VLC_UNUSED(i_reserved);
    MP4_GET4BYTES( i_version );
    MP4_GET4BYTES( i_reserved );
    MP4_GET2BYTES( p_gnre->i_genre );
    if( p_gnre->i_genre == 0 )
        MP4_READBOX_EXIT( 0 );
#ifdef MP4_VERBOSE
    msg_Dbg( p_stream, "read box: \"gnre\" genre=%i", p_gnre->i_genre );
#endif

    MP4_READBOX_EXIT( 1 );
}

static int MP4_ReadBox_trkn( stream_t *p_stream, MP4_Box_t *p_box )
{
    MP4_Box_data_trkn_t *p_trkn;
    MP4_READBOX_ENTER( MP4_Box_data_trkn_t );

    p_trkn = p_box->data.p_trkn;

    uint32_t i_data_len;
    uint32_t i_data_tag;

    MP4_GET4BYTES( i_data_len );
    MP4_GETFOURCC( i_data_tag );
    if( i_data_len < 12 || i_data_tag != ATOM_data )
        MP4_READBOX_EXIT( 0 );

    uint32_t i_version;
    VLC_UNUSED(i_version);
    uint32_t i_reserved;
    VLC_UNUSED(i_reserved);
    MP4_GET4BYTES( i_version );
    MP4_GET4BYTES( i_reserved );
    MP4_GET2BYTES( i_reserved );
    MP4_GET2BYTES( p_trkn->i_track_number );
#ifdef MP4_VERBOSE
    msg_Dbg( p_stream, "read box: \"trkn\" number=%i", p_trkn->i_track_number );
#endif
    if( i_data_len > 15 )
    {
       MP4_GET2BYTES( p_trkn->i_track_total );
#ifdef MP4_VERBOSE
       msg_Dbg( p_stream, "read box: \"trkn\" total=%i", p_trkn->i_track_total );
#endif
    }

    MP4_READBOX_EXIT( 1 );
}

static int MP4_ReadBox_sample_soun( stream_t *p_stream, MP4_Box_t *p_box )
{
    p_box->i_handler = ATOM_soun;
    MP4_READBOX_ENTER( MP4_Box_data_sample_soun_t );
    p_box->data.p_sample_soun->p_qt_description = NULL;

    /* Sanity check needed because the "wave" box does also contain an
     * "mp4a" box that we don't understand. */
    if( i_read < 28 )
    {
        i_read -= 30;
        MP4_READBOX_EXIT( 1 );
    }

    for( unsigned i = 0; i < 6 ; i++ )
    {
        MP4_GET1BYTE( p_box->data.p_sample_soun->i_reserved1[i] );
    }

    MP4_GET2BYTES( p_box->data.p_sample_soun->i_data_reference_index );

    /*
     * XXX hack -> produce a copy of the nearly complete chunk
     */
    p_box->data.p_sample_soun->i_qt_description = 0;
    p_box->data.p_sample_soun->p_qt_description = NULL;
    if( i_read > 0 )
    {
        p_box->data.p_sample_soun->p_qt_description = malloc( i_read );
        if( p_box->data.p_sample_soun->p_qt_description )
        {
            p_box->data.p_sample_soun->i_qt_description = i_read;
            memcpy( p_box->data.p_sample_soun->p_qt_description, p_peek, i_read );
        }
    }

    MP4_GET2BYTES( p_box->data.p_sample_soun->i_qt_version );
    MP4_GET2BYTES( p_box->data.p_sample_soun->i_qt_revision_level );
    MP4_GET4BYTES( p_box->data.p_sample_soun->i_qt_vendor );

    MP4_GET2BYTES( p_box->data.p_sample_soun->i_channelcount );
    MP4_GET2BYTES( p_box->data.p_sample_soun->i_samplesize );
    MP4_GET2BYTES( p_box->data.p_sample_soun->i_compressionid );
    MP4_GET2BYTES( p_box->data.p_sample_soun->i_reserved3 );
    MP4_GET2BYTES( p_box->data.p_sample_soun->i_sampleratehi );
    MP4_GET2BYTES( p_box->data.p_sample_soun->i_sampleratelo );

    if( p_box->data.p_sample_soun->i_qt_version == 1 && i_read >= 16 )
    {
        /* SoundDescriptionV1 */
        MP4_GET4BYTES( p_box->data.p_sample_soun->i_sample_per_packet );
        MP4_GET4BYTES( p_box->data.p_sample_soun->i_bytes_per_packet );
        MP4_GET4BYTES( p_box->data.p_sample_soun->i_bytes_per_frame );
        MP4_GET4BYTES( p_box->data.p_sample_soun->i_bytes_per_sample );

#ifdef MP4_VERBOSE
        msg_Dbg( p_stream,
                 "read box: \"soun\" qt3+ sample/packet=%d bytes/packet=%d "
                 "bytes/frame=%d bytes/sample=%d",
                 p_box->data.p_sample_soun->i_sample_per_packet,
                 p_box->data.p_sample_soun->i_bytes_per_packet,
                 p_box->data.p_sample_soun->i_bytes_per_frame,
                 p_box->data.p_sample_soun->i_bytes_per_sample );
#endif
        stream_Seek( p_stream, p_box->i_pos +
                        mp4_box_headersize( p_box ) + 44 );
    }
    else if( p_box->data.p_sample_soun->i_qt_version == 2 && i_read >= 36 )
    {
        /* SoundDescriptionV2 */
        double f_sample_rate;
        int64_t i_dummy64;
        uint32_t i_channel, i_extoffset, i_dummy32;

        /* Checks */
        if ( p_box->data.p_sample_soun->i_channelcount != 0x3  ||
             p_box->data.p_sample_soun->i_samplesize != 0x0010 ||
             p_box->data.p_sample_soun->i_compressionid != 0xFFFE ||
             p_box->data.p_sample_soun->i_reserved3 != 0x0     ||
             p_box->data.p_sample_soun->i_sampleratehi != 0x1  ||//65536
             p_box->data.p_sample_soun->i_sampleratelo != 0x0 )  //remainder
        {
            msg_Err( p_stream, "invalid stsd V2 box defaults" );
            MP4_READBOX_EXIT( 0 );
        }
        /* !Checks */

        MP4_GET4BYTES( i_extoffset ); /* offset to stsd extentions */
        MP4_GET8BYTES( i_dummy64 );
        memcpy( &f_sample_rate, &i_dummy64, 8 );
        msg_Dbg( p_stream, "read box: %f Hz", f_sample_rate );
        p_box->data.p_sample_soun->i_sampleratehi = (int)f_sample_rate % BLOCK16x16;
        p_box->data.p_sample_soun->i_sampleratelo = f_sample_rate / BLOCK16x16;

        MP4_GET4BYTES( i_channel );
        p_box->data.p_sample_soun->i_channelcount = i_channel;

        MP4_GET4BYTES( i_dummy32 );
        if ( i_dummy32 != 0x7F000000 )
        {
            msg_Err( p_stream, "invalid stsd V2 box" );
            MP4_READBOX_EXIT( 0 );
        }

        MP4_GET4BYTES( p_box->data.p_sample_soun->i_constbitsperchannel );
        MP4_GET4BYTES( p_box->data.p_sample_soun->i_formatflags );
        MP4_GET4BYTES( p_box->data.p_sample_soun->i_constbytesperaudiopacket );
        MP4_GET4BYTES( p_box->data.p_sample_soun->i_constLPCMframesperaudiopacket );

#ifdef MP4_VERBOSE
        msg_Dbg( p_stream, "read box: \"soun\" V2 rate=%f bitsperchannel=%u "
                           "flags=%u bytesperpacket=%u lpcmframesperpacket=%u",
                 f_sample_rate,
                 p_box->data.p_sample_soun->i_constbitsperchannel,
                 p_box->data.p_sample_soun->i_formatflags,
                 p_box->data.p_sample_soun->i_constbytesperaudiopacket,
                 p_box->data.p_sample_soun->i_constLPCMframesperaudiopacket );
#endif
        if ( i_extoffset < p_box->i_size )
            stream_Seek( p_stream, p_box->i_pos + i_extoffset );
        else
            stream_Seek( p_stream, p_box->i_pos + p_box->i_size );
    }
    else
    {
        p_box->data.p_sample_soun->i_sample_per_packet = 0;
        p_box->data.p_sample_soun->i_bytes_per_packet = 0;
        p_box->data.p_sample_soun->i_bytes_per_frame = 0;
        p_box->data.p_sample_soun->i_bytes_per_sample = 0;

#ifdef MP4_VERBOSE
        msg_Dbg( p_stream, "read box: \"soun\" mp4 or qt1/2 (rest=%"PRId64")",
                 i_read );
#endif
        stream_Seek( p_stream, p_box->i_pos +
                        mp4_box_headersize( p_box ) + 28 );
    }

    if( p_box->i_type == ATOM_drms )
    {
        msg_Warn( p_stream, "DRM protected streams are not supported." );
        MP4_READBOX_EXIT( 0 );
    }

    if( p_box->i_type == ATOM_samr || p_box->i_type == ATOM_sawb )
    {
        /* Ignore channelcount for AMR (3gpp AMRSpecificBox) */
        p_box->data.p_sample_soun->i_channelcount = 1;
    }

    /* Loads extensions */
    MP4_ReadBoxContainerRaw( p_stream, p_box ); /* esds/wave/... */

#ifdef MP4_VERBOSE
    msg_Dbg( p_stream, "read box: \"soun\" in stsd channel %d "
             "sample size %d sample rate %f",
             p_box->data.p_sample_soun->i_channelcount,
             p_box->data.p_sample_soun->i_samplesize,
             (float)p_box->data.p_sample_soun->i_sampleratehi +
             (float)p_box->data.p_sample_soun->i_sampleratelo / BLOCK16x16 );

#endif
    MP4_READBOX_EXIT( 1 );
}


static void MP4_FreeBox_sample_soun( MP4_Box_t *p_box )
{
    FREENULL( p_box->data.p_sample_soun->p_qt_description );
}


int MP4_ReadBox_sample_vide( stream_t *p_stream, MP4_Box_t *p_box )
{
    p_box->i_handler = ATOM_vide;
    MP4_READBOX_ENTER( MP4_Box_data_sample_vide_t );

    for( unsigned i = 0; i < 6 ; i++ )
    {
        MP4_GET1BYTE( p_box->data.p_sample_vide->i_reserved1[i] );
    }

    MP4_GET2BYTES( p_box->data.p_sample_vide->i_data_reference_index );

    /*
     * XXX hack -> produce a copy of the nearly complete chunk
     */
    if( i_read > 0 )
    {
        p_box->data.p_sample_vide->p_qt_image_description = malloc( i_read );
        if( unlikely( p_box->data.p_sample_vide->p_qt_image_description == NULL ) )
            MP4_READBOX_EXIT( 0 );
        p_box->data.p_sample_vide->i_qt_image_description = i_read;
        memcpy( p_box->data.p_sample_vide->p_qt_image_description,
                p_peek, i_read );
    }
    else
    {
        p_box->data.p_sample_vide->i_qt_image_description = 0;
        p_box->data.p_sample_vide->p_qt_image_description = NULL;
    }

    MP4_GET2BYTES( p_box->data.p_sample_vide->i_qt_version );
    MP4_GET2BYTES( p_box->data.p_sample_vide->i_qt_revision_level );
    MP4_GET4BYTES( p_box->data.p_sample_vide->i_qt_vendor );

    MP4_GET4BYTES( p_box->data.p_sample_vide->i_qt_temporal_quality );
    MP4_GET4BYTES( p_box->data.p_sample_vide->i_qt_spatial_quality );

    MP4_GET2BYTES( p_box->data.p_sample_vide->i_width );
    MP4_GET2BYTES( p_box->data.p_sample_vide->i_height );

    MP4_GET4BYTES( p_box->data.p_sample_vide->i_horizresolution );
    MP4_GET4BYTES( p_box->data.p_sample_vide->i_vertresolution );

    MP4_GET4BYTES( p_box->data.p_sample_vide->i_qt_data_size );
    MP4_GET2BYTES( p_box->data.p_sample_vide->i_qt_frame_count );

    if ( i_read < 32 )
        MP4_READBOX_EXIT( 0 );
    memcpy( &p_box->data.p_sample_vide->i_compressorname, p_peek, 32 );
    p_peek += 32; i_read -= 32;

    MP4_GET2BYTES( p_box->data.p_sample_vide->i_depth );
    MP4_GET2BYTES( p_box->data.p_sample_vide->i_qt_color_table );

    stream_Seek( p_stream, p_box->i_pos + mp4_box_headersize( p_box ) + 78);

    if( p_box->i_type == ATOM_drmi )
    {
        msg_Warn( p_stream, "DRM protected streams are not supported." );
        MP4_READBOX_EXIT( 0 );
    }

    MP4_ReadBoxContainerRaw( p_stream, p_box );

#ifdef MP4_VERBOSE
    msg_Dbg( p_stream, "read box: \"vide\" in stsd %dx%d depth %d",
                      p_box->data.p_sample_vide->i_width,
                      p_box->data.p_sample_vide->i_height,
                      p_box->data.p_sample_vide->i_depth );

#endif
    MP4_READBOX_EXIT( 1 );
}


void MP4_FreeBox_sample_vide( MP4_Box_t *p_box )
{
    FREENULL( p_box->data.p_sample_vide->p_qt_image_description );
}

static int MP4_ReadBox_sample_mp4s( stream_t *p_stream, MP4_Box_t *p_box )
{
    stream_Seek( p_stream, p_box->i_pos + mp4_box_headersize( p_box ) + 8 );
    MP4_ReadBoxContainerRaw( p_stream, p_box );
    return 1;
}

static int MP4_ReadBox_sample_text( stream_t *p_stream, MP4_Box_t *p_box )
{
    int32_t t;

    p_box->i_handler = ATOM_text;
    MP4_READBOX_ENTER( MP4_Box_data_sample_text_t );

    MP4_GET4BYTES( p_box->data.p_sample_text->i_reserved1 );
    MP4_GET2BYTES( p_box->data.p_sample_text->i_reserved2 );

    MP4_GET2BYTES( p_box->data.p_sample_text->i_data_reference_index );

    MP4_GET4BYTES( p_box->data.p_sample_text->i_display_flags );

    MP4_GET4BYTES( t );
    switch( t )
    {
        /* FIXME search right signification */
        case 1: // Center
            p_box->data.p_sample_text->i_justification_horizontal = 1;
            p_box->data.p_sample_text->i_justification_vertical = 1;
            break;
        case -1:    // Flush Right
            p_box->data.p_sample_text->i_justification_horizontal = -1;
            p_box->data.p_sample_text->i_justification_vertical = -1;
            break;
        case -2:    // Flush Left
            p_box->data.p_sample_text->i_justification_horizontal = 0;
            p_box->data.p_sample_text->i_justification_vertical = 0;
            break;
        case 0: // Flush Default
        default:
            p_box->data.p_sample_text->i_justification_horizontal = 1;
            p_box->data.p_sample_text->i_justification_vertical = -1;
            break;
    }

    MP4_GET2BYTES( p_box->data.p_sample_text->i_background_color[0] );
    MP4_GET2BYTES( p_box->data.p_sample_text->i_background_color[1] );
    MP4_GET2BYTES( p_box->data.p_sample_text->i_background_color[2] );
    p_box->data.p_sample_text->i_background_color[3] = 0xFF;

    MP4_GET2BYTES( p_box->data.p_sample_text->i_text_box_top );
    MP4_GET2BYTES( p_box->data.p_sample_text->i_text_box_left );
    MP4_GET2BYTES( p_box->data.p_sample_text->i_text_box_bottom );
    MP4_GET2BYTES( p_box->data.p_sample_text->i_text_box_right );

#ifdef MP4_VERBOSE
    msg_Dbg( p_stream, "read box: \"text\" in stsd text" );
#endif
    MP4_READBOX_EXIT( 1 );
}

static int MP4_ReadBox_sample_tx3g( stream_t *p_stream, MP4_Box_t *p_box )
{
    p_box->i_handler = ATOM_text;
    MP4_READBOX_ENTER( MP4_Box_data_sample_text_t );

    MP4_GET4BYTES( p_box->data.p_sample_text->i_reserved1 );
    MP4_GET2BYTES( p_box->data.p_sample_text->i_reserved2 );

    MP4_GET2BYTES( p_box->data.p_sample_text->i_data_reference_index );

    MP4_GET4BYTES( p_box->data.p_sample_text->i_display_flags );

    MP4_GET1BYTE ( p_box->data.p_sample_text->i_justification_horizontal );
    MP4_GET1BYTE ( p_box->data.p_sample_text->i_justification_vertical );

    MP4_GET1BYTE ( p_box->data.p_sample_text->i_background_color[0] );
    MP4_GET1BYTE ( p_box->data.p_sample_text->i_background_color[1] );
    MP4_GET1BYTE ( p_box->data.p_sample_text->i_background_color[2] );
    MP4_GET1BYTE ( p_box->data.p_sample_text->i_background_color[3] );

    MP4_GET2BYTES( p_box->data.p_sample_text->i_text_box_top );
    MP4_GET2BYTES( p_box->data.p_sample_text->i_text_box_left );
    MP4_GET2BYTES( p_box->data.p_sample_text->i_text_box_bottom );
    MP4_GET2BYTES( p_box->data.p_sample_text->i_text_box_right );

    MP4_GET4BYTES( p_box->data.p_sample_text->i_reserved3 );

    MP4_GET2BYTES( p_box->data.p_sample_text->i_font_id );
    MP4_GET1BYTE ( p_box->data.p_sample_text->i_font_face );
    MP4_GET1BYTE ( p_box->data.p_sample_text->i_font_size );
    MP4_GET4BYTES( p_box->data.p_sample_text->i_font_color );

#ifdef MP4_VERBOSE
    msg_Dbg( p_stream, "read box: \"tx3g\" in stsd text" );
#endif
    MP4_READBOX_EXIT( 1 );
}


#if 0
/* We can't easily call it, and anyway ~ 20 bytes lost isn't a real problem */
static void MP4_FreeBox_sample_text( MP4_Box_t *p_box )
{
    FREENULL( p_box->data.p_sample_text->psz_text_name );
}
#endif


static int MP4_ReadBox_stsd( stream_t *p_stream, MP4_Box_t *p_box )
{

    MP4_READBOX_ENTER( MP4_Box_data_stsd_t );

    MP4_GETVERSIONFLAGS( p_box->data.p_stsd );

    MP4_GET4BYTES( p_box->data.p_stsd->i_entry_count );

    stream_Seek( p_stream, p_box->i_pos + mp4_box_headersize( p_box ) + 8 );

    MP4_ReadBoxContainerRaw( p_stream, p_box );

#ifdef MP4_VERBOSE
    msg_Dbg( p_stream, "read box: \"stsd\" entry-count %d",
                      p_box->data.p_stsd->i_entry_count );

#endif
    MP4_READBOX_EXIT( 1 );
}


static int MP4_ReadBox_stsz( stream_t *p_stream, MP4_Box_t *p_box )
{
    MP4_READBOX_ENTER( MP4_Box_data_stsz_t );

    MP4_GETVERSIONFLAGS( p_box->data.p_stsz );

    MP4_GET4BYTES( p_box->data.p_stsz->i_sample_size );
    MP4_GET4BYTES( p_box->data.p_stsz->i_sample_count );

    if( p_box->data.p_stsz->i_sample_size == 0 )
    {
        p_box->data.p_stsz->i_entry_size =
            calloc( p_box->data.p_stsz->i_sample_count, sizeof(uint32_t) );
        if( unlikely( !p_box->data.p_stsz->i_entry_size ) )
            MP4_READBOX_EXIT( 0 );

        for( unsigned int i = 0; (i<p_box->data.p_stsz->i_sample_count)&&(i_read >= 4 ); i++ )
        {
            MP4_GET4BYTES( p_box->data.p_stsz->i_entry_size[i] );
        }
    }
    else
        p_box->data.p_stsz->i_entry_size = NULL;

#ifdef MP4_VERBOSE
    msg_Dbg( p_stream, "read box: \"stsz\" sample-size %d sample-count %d",
                      p_box->data.p_stsz->i_sample_size,
                      p_box->data.p_stsz->i_sample_count );

#endif
    MP4_READBOX_EXIT( 1 );
}

static void MP4_FreeBox_stsz( MP4_Box_t *p_box )
{
    FREENULL( p_box->data.p_stsz->i_entry_size );
}

static void MP4_FreeBox_stsc( MP4_Box_t *p_box )
{
    FREENULL( p_box->data.p_stsc->i_first_chunk );
    FREENULL( p_box->data.p_stsc->i_samples_per_chunk );
    FREENULL( p_box->data.p_stsc->i_sample_description_index );
}

static int MP4_ReadBox_stsc( stream_t *p_stream, MP4_Box_t *p_box )
{
    MP4_READBOX_ENTER( MP4_Box_data_stsc_t );

    MP4_GETVERSIONFLAGS( p_box->data.p_stsc );

    MP4_GET4BYTES( p_box->data.p_stsc->i_entry_count );

    p_box->data.p_stsc->i_first_chunk =
        calloc( p_box->data.p_stsc->i_entry_count, sizeof(uint32_t) );
    p_box->data.p_stsc->i_samples_per_chunk =
        calloc( p_box->data.p_stsc->i_entry_count, sizeof(uint32_t) );
    p_box->data.p_stsc->i_sample_description_index =
        calloc( p_box->data.p_stsc->i_entry_count, sizeof(uint32_t) );
    if( unlikely( p_box->data.p_stsc->i_first_chunk == NULL
     || p_box->data.p_stsc->i_samples_per_chunk == NULL
     || p_box->data.p_stsc->i_sample_description_index == NULL ) )
    {
        MP4_READBOX_EXIT( 0 );
    }

    for( unsigned int i = 0; (i < p_box->data.p_stsc->i_entry_count )&&( i_read >= 12 );i++ )
    {
        MP4_GET4BYTES( p_box->data.p_stsc->i_first_chunk[i] );
        MP4_GET4BYTES( p_box->data.p_stsc->i_samples_per_chunk[i] );
        MP4_GET4BYTES( p_box->data.p_stsc->i_sample_description_index[i] );
    }

#ifdef MP4_VERBOSE
    msg_Dbg( p_stream, "read box: \"stsc\" entry-count %d",
                      p_box->data.p_stsc->i_entry_count );

#endif
    MP4_READBOX_EXIT( 1 );
}

static int MP4_ReadBox_stco_co64( stream_t *p_stream, MP4_Box_t *p_box )
{
    MP4_READBOX_ENTER( MP4_Box_data_co64_t );

    MP4_GETVERSIONFLAGS( p_box->data.p_co64 );

    MP4_GET4BYTES( p_box->data.p_co64->i_entry_count );

    p_box->data.p_co64->i_chunk_offset =
        calloc( p_box->data.p_co64->i_entry_count, sizeof(uint64_t) );
    if( p_box->data.p_co64->i_chunk_offset == NULL )
        MP4_READBOX_EXIT( 0 );

    for( unsigned int i = 0; i < p_box->data.p_co64->i_entry_count; i++ )
    {
        if( p_box->i_type == ATOM_stco )
        {
            if( i_read < 4 )
            {
                break;
            }
            MP4_GET4BYTES( p_box->data.p_co64->i_chunk_offset[i] );
        }
        else
        {
            if( i_read < 8 )
            {
                break;
            }
            MP4_GET8BYTES( p_box->data.p_co64->i_chunk_offset[i] );
        }
    }

#ifdef MP4_VERBOSE
    msg_Dbg( p_stream, "read box: \"co64\" entry-count %d",
                      p_box->data.p_co64->i_entry_count );

#endif
    MP4_READBOX_EXIT( 1 );
}

static void MP4_FreeBox_stco_co64( MP4_Box_t *p_box )
{
    FREENULL( p_box->data.p_co64->i_chunk_offset );
}

static int MP4_ReadBox_stss( stream_t *p_stream, MP4_Box_t *p_box )
{
    MP4_READBOX_ENTER( MP4_Box_data_stss_t );

    MP4_GETVERSIONFLAGS( p_box->data.p_stss );

    MP4_GET4BYTES( p_box->data.p_stss->i_entry_count );

    p_box->data.p_stss->i_sample_number =
        calloc( p_box->data.p_stss->i_entry_count, sizeof(uint32_t) );
    if( unlikely( p_box->data.p_stss->i_sample_number == NULL ) )
        MP4_READBOX_EXIT( 0 );

    unsigned int i;
    for( i = 0; (i < p_box->data.p_stss->i_entry_count )&&( i_read >= 4 ); i++ )
    {

        MP4_GET4BYTES( p_box->data.p_stss->i_sample_number[i] );
        /* XXX in libmp4 sample begin at 0 */
        p_box->data.p_stss->i_sample_number[i]--;
    }
    if ( i < p_box->data.p_stss->i_entry_count )
        p_box->data.p_stss->i_entry_count = i;

#ifdef MP4_VERBOSE
    msg_Dbg( p_stream, "read box: \"stss\" entry-count %d",
                      p_box->data.p_stss->i_entry_count );

#endif
    MP4_READBOX_EXIT( 1 );
}

static void MP4_FreeBox_stss( MP4_Box_t *p_box )
{
    FREENULL( p_box->data.p_stss->i_sample_number );
}

static void MP4_FreeBox_stsh( MP4_Box_t *p_box )
{
    FREENULL( p_box->data.p_stsh->i_shadowed_sample_number );
    FREENULL( p_box->data.p_stsh->i_sync_sample_number );
}

static int MP4_ReadBox_stsh( stream_t *p_stream, MP4_Box_t *p_box )
{
    MP4_READBOX_ENTER( MP4_Box_data_stsh_t );

    MP4_GETVERSIONFLAGS( p_box->data.p_stsh );


    MP4_GET4BYTES( p_box->data.p_stsh->i_entry_count );

    p_box->data.p_stsh->i_shadowed_sample_number =
        calloc( p_box->data.p_stsh->i_entry_count, sizeof(uint32_t) );
    p_box->data.p_stsh->i_sync_sample_number =
        calloc( p_box->data.p_stsh->i_entry_count, sizeof(uint32_t) );

    if( p_box->data.p_stsh->i_shadowed_sample_number == NULL
     || p_box->data.p_stsh->i_sync_sample_number == NULL )
    {
        MP4_READBOX_EXIT( 0 );
    }

    unsigned i;
    for( i = 0; (i < p_box->data.p_stss->i_entry_count )&&( i_read >= 8 ); i++ )
    {
        MP4_GET4BYTES( p_box->data.p_stsh->i_shadowed_sample_number[i] );
        MP4_GET4BYTES( p_box->data.p_stsh->i_sync_sample_number[i] );
    }
    if ( i < p_box->data.p_stss->i_entry_count )
        p_box->data.p_stss->i_entry_count = i;

#ifdef MP4_VERBOSE
    msg_Dbg( p_stream, "read box: \"stsh\" entry-count %d",
                      p_box->data.p_stsh->i_entry_count );
#endif
    MP4_READBOX_EXIT( 1 );
}


static int MP4_ReadBox_stdp( stream_t *p_stream, MP4_Box_t *p_box )
{
    MP4_READBOX_ENTER( MP4_Box_data_stdp_t );

    MP4_GETVERSIONFLAGS( p_box->data.p_stdp );

    p_box->data.p_stdp->i_priority =
        calloc( i_read / 2, sizeof(uint16_t) );

    if( unlikely( !p_box->data.p_stdp->i_priority ) )
        MP4_READBOX_EXIT( 0 );

    for( unsigned i = 0; i < i_read / 2 ; i++ )
    {
        MP4_GET2BYTES( p_box->data.p_stdp->i_priority[i] );
    }

#ifdef MP4_VERBOSE
    msg_Dbg( p_stream, "read box: \"stdp\" entry-count %"PRId64,
                      i_read / 2 );

#endif
    MP4_READBOX_EXIT( 1 );
}

static void MP4_FreeBox_stdp( MP4_Box_t *p_box )
{
    FREENULL( p_box->data.p_stdp->i_priority );
}

static void MP4_FreeBox_padb( MP4_Box_t *p_box )
{
    FREENULL( p_box->data.p_padb->i_reserved1 );
    FREENULL( p_box->data.p_padb->i_pad2 );
    FREENULL( p_box->data.p_padb->i_reserved2 );
    FREENULL( p_box->data.p_padb->i_pad1 );
}

static int MP4_ReadBox_padb( stream_t *p_stream, MP4_Box_t *p_box )
{
    uint32_t count;

    MP4_READBOX_ENTER( MP4_Box_data_padb_t );

    MP4_GETVERSIONFLAGS( p_box->data.p_padb );

    MP4_GET4BYTES( p_box->data.p_padb->i_sample_count );
    count = (p_box->data.p_padb->i_sample_count + 1) / 2;

    p_box->data.p_padb->i_reserved1 = calloc( count, sizeof(uint16_t) );
    p_box->data.p_padb->i_pad2 = calloc( count, sizeof(uint16_t) );
    p_box->data.p_padb->i_reserved2 = calloc( count, sizeof(uint16_t) );
    p_box->data.p_padb->i_pad1 = calloc( count, sizeof(uint16_t) );
    if( p_box->data.p_padb->i_reserved1 == NULL
     || p_box->data.p_padb->i_pad2 == NULL
     || p_box->data.p_padb->i_reserved2 == NULL
     || p_box->data.p_padb->i_pad1 == NULL )
    {
        MP4_READBOX_EXIT( 0 );
    }

    for( unsigned int i = 0; i < i_read / 2 ; i++ )
    {
        if( i >= count )
        {
            MP4_READBOX_EXIT( 0 );
        }
        p_box->data.p_padb->i_reserved1[i] = ( (*p_peek) >> 7 )&0x01;
        p_box->data.p_padb->i_pad2[i] = ( (*p_peek) >> 4 )&0x07;
        p_box->data.p_padb->i_reserved1[i] = ( (*p_peek) >> 3 )&0x01;
        p_box->data.p_padb->i_pad1[i] = ( (*p_peek) )&0x07;

        p_peek += 1; i_read -= 1;
    }

#ifdef MP4_VERBOSE
    msg_Dbg( p_stream, "read box: \"stdp\" entry-count %"PRId64,
                      i_read / 2 );

#endif
    MP4_READBOX_EXIT( 1 );
}

static void MP4_FreeBox_elst( MP4_Box_t *p_box )
{
    FREENULL( p_box->data.p_elst->i_segment_duration );
    FREENULL( p_box->data.p_elst->i_media_time );
    FREENULL( p_box->data.p_elst->i_media_rate_integer );
    FREENULL( p_box->data.p_elst->i_media_rate_fraction );
}

static int MP4_ReadBox_elst( stream_t *p_stream, MP4_Box_t *p_box )
{
    MP4_READBOX_ENTER( MP4_Box_data_elst_t );

    MP4_GETVERSIONFLAGS( p_box->data.p_elst );


    MP4_GET4BYTES( p_box->data.p_elst->i_entry_count );

    p_box->data.p_elst->i_segment_duration =
        calloc( p_box->data.p_elst->i_entry_count, sizeof(uint64_t) );
    p_box->data.p_elst->i_media_time =
        calloc( p_box->data.p_elst->i_entry_count, sizeof(int64_t) );
    p_box->data.p_elst->i_media_rate_integer =
        calloc( p_box->data.p_elst->i_entry_count, sizeof(uint16_t) );
    p_box->data.p_elst->i_media_rate_fraction =
        calloc( p_box->data.p_elst->i_entry_count, sizeof(uint16_t) );
    if( p_box->data.p_elst->i_segment_duration == NULL
     || p_box->data.p_elst->i_media_time == NULL
     || p_box->data.p_elst->i_media_rate_integer == NULL
     || p_box->data.p_elst->i_media_rate_fraction == NULL )
    {
        MP4_READBOX_EXIT( 0 );
    }

    unsigned i;
    for( i = 0; i < p_box->data.p_elst->i_entry_count; i++ )
    {
        if( p_box->data.p_elst->i_version == 1 )
        {
            if ( i_read < 20 )
                break;
            MP4_GET8BYTES( p_box->data.p_elst->i_segment_duration[i] );

            MP4_GET8BYTES( p_box->data.p_elst->i_media_time[i] );
        }
        else
        {
            if ( i_read < 12 )
                break;
            MP4_GET4BYTES( p_box->data.p_elst->i_segment_duration[i] );

            MP4_GET4BYTES( p_box->data.p_elst->i_media_time[i] );
            p_box->data.p_elst->i_media_time[i] = (int32_t)p_box->data.p_elst->i_media_time[i];
        }

        MP4_GET2BYTES( p_box->data.p_elst->i_media_rate_integer[i] );
        MP4_GET2BYTES( p_box->data.p_elst->i_media_rate_fraction[i] );
    }
    if ( i < p_box->data.p_elst->i_entry_count )
        p_box->data.p_elst->i_entry_count = i;
#ifdef MP4_VERBOSE
    msg_Dbg( p_stream, "read box: \"elst\" entry-count %lu",
             (unsigned long)p_box->data.p_elst->i_entry_count );
#endif
    MP4_READBOX_EXIT( 1 );
}

static int MP4_ReadBox_cprt( stream_t *p_stream, MP4_Box_t *p_box )
{
    uint16_t i_language;
    bool b_mac;

    MP4_READBOX_ENTER( MP4_Box_data_cprt_t );

    MP4_GETVERSIONFLAGS( p_box->data.p_cprt );

    MP4_GET2BYTES( i_language );
    decodeQtLanguageCode( i_language, p_box->data.p_cprt->rgs_language, &b_mac );

    MP4_GETSTRINGZ( p_box->data.p_cprt->psz_notice );

#ifdef MP4_VERBOSE
    msg_Dbg( p_stream, "read box: \"cprt\" language %3.3s notice %s",
                      p_box->data.p_cprt->rgs_language,
                      p_box->data.p_cprt->psz_notice );

#endif
    MP4_READBOX_EXIT( 1 );
}

static void MP4_FreeBox_cprt( MP4_Box_t *p_box )
{
    FREENULL( p_box->data.p_cprt->psz_notice );
}


static int MP4_ReadBox_dcom( stream_t *p_stream, MP4_Box_t *p_box )
{
    MP4_READBOX_ENTER( MP4_Box_data_dcom_t );

    MP4_GETFOURCC( p_box->data.p_dcom->i_algorithm );
#ifdef MP4_VERBOSE
    msg_Dbg( p_stream,
             "read box: \"dcom\" compression algorithm : %4.4s",
                      (char*)&p_box->data.p_dcom->i_algorithm );
#endif
    MP4_READBOX_EXIT( 1 );
}

static int MP4_ReadBox_cmvd( stream_t *p_stream, MP4_Box_t *p_box )
{
    MP4_READBOX_ENTER( MP4_Box_data_cmvd_t );

    MP4_GET4BYTES( p_box->data.p_cmvd->i_uncompressed_size );

    p_box->data.p_cmvd->i_compressed_size = i_read;

    if( !( p_box->data.p_cmvd->p_data = malloc( i_read ) ) )
        MP4_READBOX_EXIT( 0 );

    /* now copy compressed data */
    memcpy( p_box->data.p_cmvd->p_data, p_peek,i_read);

    p_box->data.p_cmvd->b_compressed = 1;

#ifdef MP4_VERBOSE
    msg_Dbg( p_stream, "read box: \"cmvd\" compressed data size %d",
                      p_box->data.p_cmvd->i_compressed_size );
#endif

    MP4_READBOX_EXIT( 1 );
}
static void MP4_FreeBox_cmvd( MP4_Box_t *p_box )
{
    FREENULL( p_box->data.p_cmvd->p_data );
}


static int MP4_ReadBox_cmov( stream_t *p_stream, MP4_Box_t *p_box )
{
    MP4_Box_t *p_dcom;
    MP4_Box_t *p_cmvd;

#ifdef HAVE_ZLIB_H
    stream_t *p_stream_memory;
    z_stream z_data;
    uint8_t *p_data;
    int i_result;
#endif

    if( !( p_box->data.p_cmov = calloc(1, sizeof( MP4_Box_data_cmov_t ) ) ) )
        return 0;

    if( !p_box->p_father ||
        ( p_box->p_father->i_type != ATOM_moov &&
          p_box->p_father->i_type != ATOM_foov ) )
    {
        msg_Warn( p_stream, "Read box: \"cmov\" box alone" );
        return 1;
    }

    if( !MP4_ReadBoxContainer( p_stream, p_box ) )
    {
        return 0;
    }

    if( ( p_dcom = MP4_BoxGet( p_box, "dcom" ) ) == NULL ||
        ( p_cmvd = MP4_BoxGet( p_box, "cmvd" ) ) == NULL ||
        p_cmvd->data.p_cmvd->p_data == NULL )
    {
        msg_Warn( p_stream, "read box: \"cmov\" incomplete" );
        return 0;
    }

    if( p_dcom->data.p_dcom->i_algorithm != ATOM_zlib )
    {
        msg_Dbg( p_stream, "read box: \"cmov\" compression algorithm : %4.4s "
                 "not supported", (char*)&p_dcom->data.p_dcom->i_algorithm );
        return 0;
    }

#ifndef HAVE_ZLIB_H
    msg_Dbg( p_stream, "read box: \"cmov\" zlib unsupported" );
    return 0;

#else
    /* decompress data */
    /* allocate a new buffer */
    if( !( p_data = malloc( p_cmvd->data.p_cmvd->i_uncompressed_size ) ) )
        return 0;
    /* init default structures */
    z_data.next_in   = p_cmvd->data.p_cmvd->p_data;
    z_data.avail_in  = p_cmvd->data.p_cmvd->i_compressed_size;
    z_data.next_out  = p_data;
    z_data.avail_out = p_cmvd->data.p_cmvd->i_uncompressed_size;
    z_data.zalloc    = (alloc_func)Z_NULL;
    z_data.zfree     = (free_func)Z_NULL;
    z_data.opaque    = (voidpf)Z_NULL;

    /* init zlib */
    if( inflateInit( &z_data ) != Z_OK )
    {
        msg_Err( p_stream, "read box: \"cmov\" error while uncompressing" );
        free( p_data );
        return 0;
    }

    /* uncompress */
    i_result = inflate( &z_data, Z_NO_FLUSH );
    if( i_result != Z_OK && i_result != Z_STREAM_END )
    {
        msg_Err( p_stream, "read box: \"cmov\" error while uncompressing" );
        free( p_data );
        return 0;
    }

    if( p_cmvd->data.p_cmvd->i_uncompressed_size != z_data.total_out )
    {
        msg_Warn( p_stream, "read box: \"cmov\" uncompressing data size "
                  "mismatch" );
    }
    p_cmvd->data.p_cmvd->i_uncompressed_size = z_data.total_out;

    /* close zlib */
    if( inflateEnd( &z_data ) != Z_OK )
    {
        msg_Warn( p_stream, "read box: \"cmov\" error while uncompressing "
                  "data (ignored)" );
    }

    free( p_cmvd->data.p_cmvd->p_data );
    p_cmvd->data.p_cmvd->p_data = p_data;
    p_cmvd->data.p_cmvd->b_compressed = 0;

    msg_Dbg( p_stream, "read box: \"cmov\" box successfully uncompressed" );

    /* now create a memory stream */
    p_stream_memory =
        stream_MemoryNew( VLC_OBJECT(p_stream), p_cmvd->data.p_cmvd->p_data,
                          p_cmvd->data.p_cmvd->i_uncompressed_size, true );

    /* and read uncompressd moov */
    p_box->data.p_cmov->p_moov = MP4_ReadBox( p_stream_memory, NULL );

    stream_Delete( p_stream_memory );

#ifdef MP4_VERBOSE
    msg_Dbg( p_stream, "read box: \"cmov\" compressed movie header completed");
#endif

    return p_box->data.p_cmov->p_moov ? 1 : 0;
#endif /* HAVE_ZLIB_H */
}

static int MP4_ReadBox_rdrf( stream_t *p_stream, MP4_Box_t *p_box )
{
    uint32_t i_len;
    MP4_READBOX_ENTER( MP4_Box_data_rdrf_t );

    MP4_GETVERSIONFLAGS( p_box->data.p_rdrf );
    MP4_GETFOURCC( p_box->data.p_rdrf->i_ref_type );
    MP4_GET4BYTES( i_len );
    i_len++;

    if( i_len > 0 )
    {
        p_box->data.p_rdrf->psz_ref = malloc( i_len );
        if( p_box->data.p_rdrf->psz_ref == NULL )
            MP4_READBOX_EXIT( 0 );
        i_len--;

        for( unsigned i = 0; i < i_len; i++ )
        {
            MP4_GET1BYTE( p_box->data.p_rdrf->psz_ref[i] );
        }
        p_box->data.p_rdrf->psz_ref[i_len] = '\0';
    }
    else
    {
        p_box->data.p_rdrf->psz_ref = NULL;
    }

#ifdef MP4_VERBOSE
    msg_Dbg( p_stream,
            "read box: \"rdrf\" type:%4.4s ref %s",
            (char*)&p_box->data.p_rdrf->i_ref_type,
            p_box->data.p_rdrf->psz_ref );
#endif
    MP4_READBOX_EXIT( 1 );
}

static void MP4_FreeBox_rdrf( MP4_Box_t *p_box )
{
    FREENULL( p_box->data.p_rdrf->psz_ref );
}


static int MP4_ReadBox_rmdr( stream_t *p_stream, MP4_Box_t *p_box )
{
    MP4_READBOX_ENTER( MP4_Box_data_rmdr_t );

    MP4_GETVERSIONFLAGS( p_box->data.p_rmdr );

    MP4_GET4BYTES( p_box->data.p_rmdr->i_rate );

#ifdef MP4_VERBOSE
    msg_Dbg( p_stream,
             "read box: \"rmdr\" rate:%d",
             p_box->data.p_rmdr->i_rate );
#endif
    MP4_READBOX_EXIT( 1 );
}

static int MP4_ReadBox_rmqu( stream_t *p_stream, MP4_Box_t *p_box )
{
    MP4_READBOX_ENTER( MP4_Box_data_rmqu_t );

    MP4_GET4BYTES( p_box->data.p_rmqu->i_quality );

#ifdef MP4_VERBOSE
    msg_Dbg( p_stream,
             "read box: \"rmqu\" quality:%d",
             p_box->data.p_rmqu->i_quality );
#endif
    MP4_READBOX_EXIT( 1 );
}

static int MP4_ReadBox_rmvc( stream_t *p_stream, MP4_Box_t *p_box )
{
    MP4_READBOX_ENTER( MP4_Box_data_rmvc_t );
    MP4_GETVERSIONFLAGS( p_box->data.p_rmvc );

    MP4_GETFOURCC( p_box->data.p_rmvc->i_gestaltType );
    MP4_GET4BYTES( p_box->data.p_rmvc->i_val1 );
    MP4_GET4BYTES( p_box->data.p_rmvc->i_val2 );
    MP4_GET2BYTES( p_box->data.p_rmvc->i_checkType );

#ifdef MP4_VERBOSE
    msg_Dbg( p_stream,
             "read box: \"rmvc\" gestaltType:%4.4s val1:0x%x val2:0x%x checkType:0x%x",
             (char*)&p_box->data.p_rmvc->i_gestaltType,
             p_box->data.p_rmvc->i_val1,p_box->data.p_rmvc->i_val2,
             p_box->data.p_rmvc->i_checkType );
#endif

    MP4_READBOX_EXIT( 1 );
}

static int MP4_ReadBox_frma( stream_t *p_stream, MP4_Box_t *p_box )
{
    MP4_READBOX_ENTER( MP4_Box_data_frma_t );

    MP4_GETFOURCC( p_box->data.p_frma->i_type );

#ifdef MP4_VERBOSE
    msg_Dbg( p_stream, "read box: \"frma\" i_type:%4.4s",
             (char *)&p_box->data.p_frma->i_type );
#endif

    MP4_READBOX_EXIT( 1 );
}

static int MP4_ReadBox_skcr( stream_t *p_stream, MP4_Box_t *p_box )
{
    MP4_READBOX_ENTER( MP4_Box_data_skcr_t );

    MP4_GET4BYTES( p_box->data.p_skcr->i_init );
    MP4_GET4BYTES( p_box->data.p_skcr->i_encr );
    MP4_GET4BYTES( p_box->data.p_skcr->i_decr );

#ifdef MP4_VERBOSE
    msg_Dbg( p_stream, "read box: \"skcr\" i_init:%d i_encr:%d i_decr:%d",
             p_box->data.p_skcr->i_init,
             p_box->data.p_skcr->i_encr,
             p_box->data.p_skcr->i_decr );
#endif

    MP4_READBOX_EXIT( 1 );
}

static int MP4_ReadBox_drms( stream_t *p_stream, MP4_Box_t *p_box )
{
    VLC_UNUSED(p_box);
    /* ATOMs 'user', 'key', 'iviv', and 'priv' will be skipped,
     * so unless data decrypt itself by magic, there will be no playback,
     * but we never know... */
    msg_Warn( p_stream, "DRM protected streams are not supported." );
    return 1;
}

static int MP4_ReadBox_name( stream_t *p_stream, MP4_Box_t *p_box )
{
    MP4_READBOX_ENTER( MP4_Box_data_name_t );

    if( p_box->i_size < 8 || p_box->i_size > SIZE_MAX )
        MP4_READBOX_EXIT( 0 );

    p_box->data.p_name->psz_text = malloc( p_box->i_size + 1 - 8 ); /* +\0, -name, -size */
    if( p_box->data.p_name->psz_text == NULL )
        MP4_READBOX_EXIT( 0 );

    memcpy( p_box->data.p_name->psz_text, p_peek, p_box->i_size - 8 );
    p_box->data.p_name->psz_text[p_box->i_size - 8] = '\0';

#ifdef MP4_VERBOSE
        msg_Dbg( p_stream, "read box: \"name\" text=`%s'",
                 p_box->data.p_name->psz_text );
#endif
    MP4_READBOX_EXIT( 1 );
}

static void MP4_FreeBox_name( MP4_Box_t *p_box )
{
    FREENULL( p_box->data.p_name->psz_text );
}

static int MP4_ReadBox_data( stream_t *p_stream, MP4_Box_t *p_box )
{
    MP4_READBOX_ENTER( MP4_Box_data_data_t );

    /* What's that header ?? */
    if ( i_read <= 8 )
        MP4_READBOX_EXIT( 0 );

    p_box->data.p_data->p_blob = malloc( i_read - 8 );
    if ( !p_box->data.p_data->p_blob )
        MP4_READBOX_EXIT( 0 );

    p_box->data.p_data->i_blob = i_read - 8;
    memcpy( p_box->data.p_data->p_blob, p_peek + 8, i_read - 8 );

    MP4_READBOX_EXIT( 1 );
}

static void MP4_FreeBox_data( MP4_Box_t *p_box )
{
    free( p_box->data.p_data->p_blob );
}

static int MP4_ReadBox_0xa9xxx( stream_t *p_stream, MP4_Box_t *p_box )
{
    uint16_t i16;

    MP4_READBOX_ENTER( MP4_Box_data_0xa9xxx_t );

    p_box->data.p_0xa9xxx->psz_text = NULL;

    MP4_GET2BYTES( i16 );

    if( i16 > 0 )
    {
        int i_length = i16;

        MP4_GET2BYTES( i16 );
        if( i_length >= i_read ) i_length = i_read + 1;

        p_box->data.p_0xa9xxx->psz_text = malloc( i_length );
        if( p_box->data.p_0xa9xxx->psz_text == NULL )
            MP4_READBOX_EXIT( 0 );

        i_length--;
        memcpy( p_box->data.p_0xa9xxx->psz_text,
                p_peek, i_length );
        p_box->data.p_0xa9xxx->psz_text[i_length] = '\0';

#ifdef MP4_VERBOSE
        msg_Dbg( p_stream,
                 "read box: \"c%3.3s\" text=`%s'",
                 ((char*)&p_box->i_type + 1),
                 p_box->data.p_0xa9xxx->psz_text );
#endif
    }
    else
    {
        /* try iTune/Quicktime format, rewind to start */
        p_peek -= 2; i_read += 2;
        // we are expecting a 'data' box
        uint32_t i_data_len;
        uint32_t i_data_tag;

        MP4_GET4BYTES( i_data_len );
        if( i_data_len > i_read ) i_data_len = i_read;
        MP4_GETFOURCC( i_data_tag );
        if( (i_data_len > 0) && (i_data_tag == ATOM_data) )
        {
            /* data box contains a version/flags field */
            uint32_t i_version;
            uint32_t i_reserved;
            VLC_UNUSED(i_reserved);
            MP4_GET4BYTES( i_version );
            MP4_GET4BYTES( i_reserved );
            // version should be 0, flags should be 1 for text, 0 for data
            if( ( i_version == 0x00000001 ) && (i_data_len >= 12 ) )
            {
                // the rest is the text
                i_data_len -= 12;
                p_box->data.p_0xa9xxx->psz_text = malloc( i_data_len + 1 );
                if( p_box->data.p_0xa9xxx->psz_text == NULL )
                    MP4_READBOX_EXIT( 0 );

                memcpy( p_box->data.p_0xa9xxx->psz_text,
                        p_peek, i_data_len );
                p_box->data.p_0xa9xxx->psz_text[i_data_len] = '\0';
#ifdef MP4_VERBOSE
        msg_Dbg( p_stream,
                 "read box: \"c%3.3s\" text=`%s'",
                 ((char*)&p_box->i_type+1),
                 p_box->data.p_0xa9xxx->psz_text );
#endif
            }
            else
            {
                // TODO: handle data values for ID3 tag values, track num or cover art,etc...
            }
        }
    }

    MP4_READBOX_EXIT( 1 );
}
static void MP4_FreeBox_0xa9xxx( MP4_Box_t *p_box )
{
    FREENULL( p_box->data.p_0xa9xxx->psz_text );
}

/* Chapter support */
static void MP4_FreeBox_chpl( MP4_Box_t *p_box )
{
    MP4_Box_data_chpl_t *p_chpl = p_box->data.p_chpl;
    for( unsigned i = 0; i < p_chpl->i_chapter; i++ )
        free( p_chpl->chapter[i].psz_name );
}

static int MP4_ReadBox_chpl( stream_t *p_stream, MP4_Box_t *p_box )
{
    MP4_Box_data_chpl_t *p_chpl;
    uint32_t i_dummy;
    VLC_UNUSED(i_dummy);
    int i;
    MP4_READBOX_ENTER( MP4_Box_data_chpl_t );

    p_chpl = p_box->data.p_chpl;

    MP4_GETVERSIONFLAGS( p_chpl );

    MP4_GET4BYTES( i_dummy );

    MP4_GET1BYTE( p_chpl->i_chapter );

    for( i = 0; i < p_chpl->i_chapter; i++ )
    {
        uint64_t i_start;
        uint8_t i_len;
        int i_copy;
        if ( i_read < 9 )
            break;
        MP4_GET8BYTES( i_start );
        MP4_GET1BYTE( i_len );

        p_chpl->chapter[i].psz_name = malloc( i_len + 1 );
        if( !p_chpl->chapter[i].psz_name )
            MP4_READBOX_EXIT( 0 );

        i_copy = __MIN( i_len, i_read );
        if( i_copy > 0 )
            memcpy( p_chpl->chapter[i].psz_name, p_peek, i_copy );
        p_chpl->chapter[i].psz_name[i_copy] = '\0';
        p_chpl->chapter[i].i_start = i_start;

        p_peek += i_copy;
        i_read -= i_copy;
    }

    if ( i != p_chpl->i_chapter )
        p_chpl->i_chapter = i;

    /* Bubble sort by increasing start date */
    do
    {
        for( i = 0; i < p_chpl->i_chapter - 1; i++ )
        {
            if( p_chpl->chapter[i].i_start > p_chpl->chapter[i+1].i_start )
            {
                char *psz = p_chpl->chapter[i+1].psz_name;
                int64_t i64 = p_chpl->chapter[i+1].i_start;

                p_chpl->chapter[i+1].psz_name = p_chpl->chapter[i].psz_name;
                p_chpl->chapter[i+1].i_start = p_chpl->chapter[i].i_start;

                p_chpl->chapter[i].psz_name = psz;
                p_chpl->chapter[i].i_start = i64;

                i = -1;
                break;
            }
        }
    } while( i == -1 );

#ifdef MP4_VERBOSE
    msg_Dbg( p_stream, "read box: \"chpl\" %d chapters",
                       p_chpl->i_chapter );
#endif
    MP4_READBOX_EXIT( 1 );
}

static int MP4_ReadBox_tref_generic( stream_t *p_stream, MP4_Box_t *p_box )
{
    MP4_READBOX_ENTER( MP4_Box_data_tref_generic_t );

    p_box->data.p_tref_generic->i_track_ID = NULL;
    p_box->data.p_tref_generic->i_entry_count = i_read / sizeof(uint32_t);
    if( p_box->data.p_tref_generic->i_entry_count > 0 )
        p_box->data.p_tref_generic->i_track_ID = calloc( p_box->data.p_tref_generic->i_entry_count, sizeof(uint32_t) );
    if( p_box->data.p_tref_generic->i_track_ID == NULL )
        MP4_READBOX_EXIT( 0 );

    for( unsigned i = 0; i < p_box->data.p_tref_generic->i_entry_count; i++ )
    {
        MP4_GET4BYTES( p_box->data.p_tref_generic->i_track_ID[i] );
    }
#ifdef MP4_VERBOSE
        msg_Dbg( p_stream, "read box: \"chap\" %d references",
                 p_box->data.p_tref_generic->i_entry_count );
#endif

    MP4_READBOX_EXIT( 1 );
}
static void MP4_FreeBox_tref_generic( MP4_Box_t *p_box )
{
    FREENULL( p_box->data.p_tref_generic->i_track_ID );
}

static int MP4_ReadBox_meta( stream_t *p_stream, MP4_Box_t *p_box )
{
    uint8_t meta_data[8];
    int i_actually_read;

    // skip over box header
    i_actually_read = stream_Read( p_stream, meta_data, 8 );
    if( i_actually_read < 8 )
        return 0;

    if ( !p_box->p_father )
        return 0;

    switch( p_box->p_father->i_type )
    {
    case ATOM_udta: /* itunes udta/meta */
        /* meta content starts with a 4 byte version/flags value (should be 0) */
        i_actually_read = stream_Read( p_stream, meta_data, 4 );
        if( i_actually_read < 4 )
            return 0;

        /* then it behaves like a container */
        return MP4_ReadBoxContainerRaw( p_stream, p_box );

    default: /* regular meta atom */

        i_actually_read = stream_Read( p_stream, meta_data, 8 );
        if( i_actually_read < 8 )
            return 0;

        /* Mandatory */
        if ( VLC_FOURCC( meta_data[4], meta_data[5], meta_data[6], meta_data[7] ) != ATOM_hdlr )
            return 0;

        //ft
    }
    return 1;
}

static int MP4_ReadBox_iods( stream_t *p_stream, MP4_Box_t *p_box )
{
    char i_unused;
    VLC_UNUSED(i_unused);

    MP4_READBOX_ENTER( MP4_Box_data_iods_t );
    MP4_GETVERSIONFLAGS( p_box->data.p_iods );

    MP4_GET1BYTE( i_unused ); /* tag */
    MP4_GET1BYTE( i_unused ); /* length */

    MP4_GET2BYTES( p_box->data.p_iods->i_object_descriptor ); /* 10bits, 6 other bits
                                                              are used for other flags */
    MP4_GET1BYTE( p_box->data.p_iods->i_OD_profile_level );
    MP4_GET1BYTE( p_box->data.p_iods->i_scene_profile_level );
    MP4_GET1BYTE( p_box->data.p_iods->i_audio_profile_level );
    MP4_GET1BYTE( p_box->data.p_iods->i_visual_profile_level );
    MP4_GET1BYTE( p_box->data.p_iods->i_graphics_profile_level );

#ifdef MP4_VERBOSE
    msg_Dbg( p_stream,
             "read box: \"iods\" objectDescriptorId: %i, OD: %i, scene: %i, audio: %i, "
             "visual: %i, graphics: %i",
             p_box->data.p_iods->i_object_descriptor >> 6,
             p_box->data.p_iods->i_OD_profile_level,
             p_box->data.p_iods->i_scene_profile_level,
             p_box->data.p_iods->i_audio_profile_level,
             p_box->data.p_iods->i_visual_profile_level,
             p_box->data.p_iods->i_graphics_profile_level );
#endif

    MP4_READBOX_EXIT( 1 );
}

static int MP4_ReadBox_pasp( stream_t *p_stream, MP4_Box_t *p_box )
{
    MP4_READBOX_ENTER( MP4_Box_data_pasp_t );

    MP4_GET4BYTES( p_box->data.p_pasp->i_horizontal_spacing );
    MP4_GET4BYTES( p_box->data.p_pasp->i_vertical_spacing );

#ifdef MP4_VERBOSE
    msg_Dbg( p_stream,
             "read box: \"paps\" %dx%d",
             p_box->data.p_pasp->i_horizontal_spacing,
             p_box->data.p_pasp->i_vertical_spacing);
#endif

    MP4_READBOX_EXIT( 1 );
}

static int MP4_ReadBox_mehd( stream_t *p_stream, MP4_Box_t *p_box )
{
    MP4_READBOX_ENTER( MP4_Box_data_mehd_t );

    MP4_GETVERSIONFLAGS( p_box->data.p_mehd );
    if( p_box->data.p_mehd->i_version == 1 )
        MP4_GET8BYTES( p_box->data.p_mehd->i_fragment_duration );
    else /* version == 0 */
        MP4_GET4BYTES( p_box->data.p_mehd->i_fragment_duration );

#ifdef MP4_VERBOSE
    msg_Dbg( p_stream,
             "read box: \"mehd\" frag dur. %"PRIu64"",
             p_box->data.p_mehd->i_fragment_duration );
#endif

    MP4_READBOX_EXIT( 1 );
}

static int MP4_ReadBox_trex( stream_t *p_stream, MP4_Box_t *p_box )
{
    MP4_READBOX_ENTER( MP4_Box_data_trex_t );
    MP4_GETVERSIONFLAGS( p_box->data.p_trex );

    MP4_GET4BYTES( p_box->data.p_trex->i_track_ID );
    MP4_GET4BYTES( p_box->data.p_trex->i_default_sample_description_index );
    MP4_GET4BYTES( p_box->data.p_trex->i_default_sample_duration );
    MP4_GET4BYTES( p_box->data.p_trex->i_default_sample_size );
    MP4_GET4BYTES( p_box->data.p_trex->i_default_sample_flags );

#ifdef MP4_VERBOSE
    msg_Dbg( p_stream,
             "read box: \"trex\" trackID: %"PRIu32"",
             p_box->data.p_trex->i_track_ID );
#endif

    MP4_READBOX_EXIT( 1 );
}

static int MP4_ReadBox_sdtp( stream_t *p_stream, MP4_Box_t *p_box )
{
    uint32_t i_sample_count;
    MP4_READBOX_ENTER( MP4_Box_data_sdtp_t );
    MP4_Box_data_sdtp_t *p_sdtp = p_box->data.p_sdtp;
    MP4_GETVERSIONFLAGS( p_box->data.p_sdtp );
    i_sample_count = i_read;

    p_sdtp->p_sample_table = calloc( i_sample_count, 1 );

    if( !p_sdtp->p_sample_table )
        MP4_READBOX_EXIT( 0 );

    for( uint32_t i = 0; i < i_sample_count; i++ )
        MP4_GET1BYTE( p_sdtp->p_sample_table[i] );

#ifdef MP4_VERBOSE
    msg_Dbg( p_stream, "i_sample_count is %"PRIu32"", i_sample_count );
    if ( i_sample_count > 3 )
        msg_Dbg( p_stream,
             "read box: \"sdtp\" head: %"PRIx8" %"PRIx8" %"PRIx8" %"PRIx8"",
                 p_sdtp->p_sample_table[0],
                 p_sdtp->p_sample_table[1],
                 p_sdtp->p_sample_table[2],
                 p_sdtp->p_sample_table[3] );
#endif

    MP4_READBOX_EXIT( 1 );
}

static void MP4_FreeBox_sdtp( MP4_Box_t *p_box )
{
    FREENULL( p_box->data.p_sdtp->p_sample_table );
}

static int MP4_ReadBox_mfro( stream_t *p_stream, MP4_Box_t *p_box )
{
    MP4_READBOX_ENTER( MP4_Box_data_mfro_t );

    MP4_GETVERSIONFLAGS( p_box->data.p_mfro );
    MP4_GET4BYTES( p_box->data.p_mfro->i_size );

#ifdef MP4_VERBOSE
    msg_Dbg( p_stream,
             "read box: \"mfro\" size: %"PRIu32"",
             p_box->data.p_mfro->i_size);
#endif

    MP4_READBOX_EXIT( 1 );
}

static int MP4_ReadBox_tfra( stream_t *p_stream, MP4_Box_t *p_box )
{
    uint32_t i_number_of_entries;
    MP4_READBOX_ENTER( MP4_Box_data_tfra_t );
    MP4_Box_data_tfra_t *p_tfra = p_box->data.p_tfra;
    MP4_GETVERSIONFLAGS( p_box->data.p_tfra );

    MP4_GET4BYTES( p_tfra->i_track_ID );
    uint32_t i_lengths = 0;
    MP4_GET4BYTES( i_lengths );
    MP4_GET4BYTES( p_tfra->i_number_of_entries );
    i_number_of_entries = p_tfra->i_number_of_entries;
    p_tfra->i_length_size_of_traf_num = i_lengths >> 4;
    p_tfra->i_length_size_of_trun_num = ( i_lengths & 0x0c ) >> 2;
    p_tfra->i_length_size_of_sample_num = i_lengths & 0x03;

    size_t size = 4 + 4*p_tfra->i_version; /* size in {4, 8} */
    p_tfra->p_time = calloc( i_number_of_entries, size );
    p_tfra->p_moof_offset = calloc( i_number_of_entries, size );

    size = 1 + p_tfra->i_length_size_of_traf_num; /* size in [|1, 4|] */
    p_tfra->p_traf_number = calloc( i_number_of_entries, size );
    size = 1 + p_tfra->i_length_size_of_trun_num;
    p_tfra->p_trun_number = calloc( i_number_of_entries, size );
    size = 1 + p_tfra->i_length_size_of_sample_num;
    p_tfra->p_sample_number = calloc( i_number_of_entries, size );

    if( !p_tfra->p_time || !p_tfra->p_moof_offset || !p_tfra->p_traf_number
                        || !p_tfra->p_trun_number || !p_tfra->p_sample_number )
        goto error;

    int i_fields_length = 3 + p_tfra->i_length_size_of_traf_num
            + p_tfra->i_length_size_of_trun_num
            + p_tfra->i_length_size_of_sample_num;

    uint32_t i;
    for( i = 0; i < i_number_of_entries; i++ )
    {

        if( p_tfra->i_version == 1 )
        {
            if ( i_read < i_fields_length + 16 )
                break;
            MP4_GET8BYTES( p_tfra->p_time[i*2] );
            MP4_GET8BYTES( p_tfra->p_moof_offset[i*2] );
        }
        else
        {
            if ( i_read < i_fields_length + 8 )
                break;
            MP4_GET4BYTES( p_tfra->p_time[i] );
            MP4_GET4BYTES( p_tfra->p_moof_offset[i] );
        }
        switch (p_tfra->i_length_size_of_traf_num)
        {
            case 0:
                MP4_GET1BYTE( p_tfra->p_traf_number[i] );
                break;
            case 1:
                MP4_GET2BYTES( p_tfra->p_traf_number[i*2] );
                break;
            case 2:
                MP4_GET3BYTES( p_tfra->p_traf_number[i*3] );
                break;
            case 3:
                MP4_GET4BYTES( p_tfra->p_traf_number[i*4] );
                break;
            default:
                goto error;
        }

        switch (p_tfra->i_length_size_of_trun_num)
        {
            case 0:
                MP4_GET1BYTE( p_tfra->p_trun_number[i] );
                break;
            case 1:
                MP4_GET2BYTES( p_tfra->p_trun_number[i*2] );
                break;
            case 2:
                MP4_GET3BYTES( p_tfra->p_trun_number[i*3] );
                break;
            case 3:
                MP4_GET4BYTES( p_tfra->p_trun_number[i*4] );
                break;
            default:
                goto error;
        }

        switch (p_tfra->i_length_size_of_sample_num)
        {
            case 0:
                MP4_GET1BYTE( p_tfra->p_sample_number[i] );
                break;
            case 1:
                MP4_GET2BYTES( p_tfra->p_sample_number[i*2] );
                break;
            case 2:
                MP4_GET3BYTES( p_tfra->p_sample_number[i*3] );
                break;
            case 3:
                MP4_GET4BYTES( p_tfra->p_sample_number[i*4] );
                break;
            default:
                goto error;
        }
    }
    if ( i < i_number_of_entries )
        i_number_of_entries = i;

#ifdef MP4_VERBOSE
    if( p_tfra->i_version == 0 )
    {
        msg_Dbg( p_stream, "time[0]: %"PRIu32", moof_offset[0]: %"PRIx32"",
                         p_tfra->p_time[0], p_tfra->p_moof_offset[0] );

        msg_Dbg( p_stream, "time[1]: %"PRIu32", moof_offset[1]: %"PRIx32"",
                         p_tfra->p_time[1], p_tfra->p_moof_offset[1] );
    }
    else
    {
        msg_Dbg( p_stream, "time[0]: %"PRIu64", moof_offset[0]: %"PRIx64"",
                ((uint64_t *)(p_tfra->p_time))[0],
                ((uint64_t *)(p_tfra->p_moof_offset))[0] );

        msg_Dbg( p_stream, "time[1]: %"PRIu64", moof_offset[1]: %"PRIx64"",
                ((uint64_t *)(p_tfra->p_time))[1],
                ((uint64_t *)(p_tfra->p_moof_offset))[1] );
    }

    msg_Dbg( p_stream, "number_of_entries is %"PRIu32"", i_number_of_entries );
    msg_Dbg( p_stream, "track ID is: %"PRIu32"", p_tfra->i_track_ID );
#endif

    MP4_READBOX_EXIT( 1 );
error:
    MP4_READBOX_EXIT( 0 );
}

static void MP4_FreeBox_tfra( MP4_Box_t *p_box )
{
    FREENULL( p_box->data.p_tfra->p_time );
    FREENULL( p_box->data.p_tfra->p_moof_offset );
    FREENULL( p_box->data.p_tfra->p_traf_number );
    FREENULL( p_box->data.p_tfra->p_trun_number );
    FREENULL( p_box->data.p_tfra->p_sample_number );
}


/* For generic */
static int MP4_ReadBox_default( stream_t *p_stream, MP4_Box_t *p_box )
{
    if( !p_box->p_father )
    {
        goto unknown;
    }
    if( p_box->p_father->i_type == ATOM_stsd )
    {
        MP4_Box_t *p_mdia = MP4_BoxGet( p_box, "../../../.." );
        MP4_Box_t *p_hdlr;

        if( p_mdia == NULL || p_mdia->i_type != ATOM_mdia ||
            (p_hdlr = MP4_BoxGet( p_mdia, "hdlr" )) == NULL )
        {
            goto unknown;
        }
        switch( p_hdlr->data.p_hdlr->i_handler_type )
        {
            case ATOM_soun:
                return MP4_ReadBox_sample_soun( p_stream, p_box );
            case ATOM_vide:
                return MP4_ReadBox_sample_vide( p_stream, p_box );
            case ATOM_text:
                return MP4_ReadBox_sample_text( p_stream, p_box );
            case ATOM_tx3g:
            case ATOM_sbtl:
                return MP4_ReadBox_sample_tx3g( p_stream, p_box );
            default:
                msg_Warn( p_stream,
                          "unknown handler type in stsd (incompletely loaded)" );
                return 1;
        }
    }

unknown:
    if MP4_BOX_TYPE_ASCII()
        msg_Warn( p_stream,
                "unknown box type %4.4s (incompletely loaded)",
                (char*)&p_box->i_type );
    else
        msg_Warn( p_stream,
                "unknown box type c%3.3s (incompletely loaded)",
                (char*)&p_box->i_type+1 );

    return 1;
}

/**** ------------------------------------------------------------------- ****/
/****                   "Higher level" Functions                          ****/
/**** ------------------------------------------------------------------- ****/

static const struct
{
    uint32_t i_type;
    int  (*MP4_ReadBox_function )( stream_t *p_stream, MP4_Box_t *p_box );
    void (*MP4_FreeBox_function )( MP4_Box_t *p_box );
    uint32_t i_parent; /* set parent to restrict, duplicating if needed; 0 for any */
} MP4_Box_Function [] =
{
    /* Containers */
    { ATOM_moov,    MP4_ReadBoxContainer,     MP4_FreeBox_Common, 0 },
    { ATOM_trak,    MP4_ReadBoxContainer,     MP4_FreeBox_Common, ATOM_moov },
    { ATOM_mdia,    MP4_ReadBoxContainer,     MP4_FreeBox_Common, ATOM_trak },
    { ATOM_moof,    MP4_ReadBoxContainer,     MP4_FreeBox_Common, 0 },
    { ATOM_minf,    MP4_ReadBoxContainer,     MP4_FreeBox_Common, ATOM_mdia },
    { ATOM_stbl,    MP4_ReadBoxContainer,     MP4_FreeBox_Common, ATOM_minf },
    { ATOM_dinf,    MP4_ReadBoxContainer,     MP4_FreeBox_Common, ATOM_minf },
    { ATOM_dinf,    MP4_ReadBoxContainer,     MP4_FreeBox_Common, ATOM_meta },
    { ATOM_edts,    MP4_ReadBoxContainer,     MP4_FreeBox_Common, ATOM_trak },
    { ATOM_udta,    MP4_ReadBoxContainer,     MP4_FreeBox_Common, 0 },
    { ATOM_nmhd,    MP4_ReadBoxContainer,     MP4_FreeBox_Common, ATOM_minf },
    { ATOM_hnti,    MP4_ReadBoxContainer,     MP4_FreeBox_Common, ATOM_udta },
    { ATOM_rmra,    MP4_ReadBoxContainer,     MP4_FreeBox_Common, ATOM_moov },
    { ATOM_rmda,    MP4_ReadBoxContainer,     MP4_FreeBox_Common, ATOM_rmra },
    { ATOM_tref,    MP4_ReadBoxContainer,     MP4_FreeBox_Common, ATOM_trak },
    { ATOM_gmhd,    MP4_ReadBoxContainer,     MP4_FreeBox_Common, ATOM_minf },
    { ATOM_wave,    MP4_ReadBoxContainer,     MP4_FreeBox_Common, 0 },
    { ATOM_ilst,    MP4_ReadBoxContainer,     MP4_FreeBox_Common, ATOM_meta },
    { ATOM_mvex,    MP4_ReadBoxContainer,     MP4_FreeBox_Common, ATOM_moov },
    { ATOM_mvex,    MP4_ReadBoxContainer,     MP4_FreeBox_Common, ATOM_ftyp },

    /* specific box */
    { ATOM_ftyp,    MP4_ReadBox_ftyp,         MP4_FreeBox_ftyp, 0 },
    { ATOM_cmov,    MP4_ReadBox_cmov,         MP4_FreeBox_Common, 0 },
    { ATOM_mvhd,    MP4_ReadBox_mvhd,         MP4_FreeBox_Common, ATOM_moov },
    { ATOM_tkhd,    MP4_ReadBox_tkhd,         MP4_FreeBox_Common, ATOM_trak },
    { ATOM_mdhd,    MP4_ReadBox_mdhd,         MP4_FreeBox_Common, ATOM_mdia },
    { ATOM_hdlr,    MP4_ReadBox_hdlr,         MP4_FreeBox_hdlr,   ATOM_mdia },
    { ATOM_hdlr,    MP4_ReadBox_hdlr,         MP4_FreeBox_hdlr,   ATOM_meta },
    { ATOM_vmhd,    MP4_ReadBox_vmhd,         MP4_FreeBox_Common, ATOM_minf },
    { ATOM_smhd,    MP4_ReadBox_smhd,         MP4_FreeBox_Common, ATOM_minf },
    { ATOM_hmhd,    MP4_ReadBox_hmhd,         MP4_FreeBox_Common, ATOM_minf },
    { ATOM_url,     MP4_ReadBox_url,          MP4_FreeBox_url, 0 },
    { ATOM_urn,     MP4_ReadBox_urn,          MP4_FreeBox_urn, 0 },
    { ATOM_dref,    MP4_ReadBox_dref,         MP4_FreeBox_Common, 0 },
    { ATOM_stts,    MP4_ReadBox_stts,         MP4_FreeBox_stts,   ATOM_stbl },
    { ATOM_ctts,    MP4_ReadBox_ctts,         MP4_FreeBox_ctts,   ATOM_stbl },
    { ATOM_stsd,    MP4_ReadBox_stsd,         MP4_FreeBox_Common, ATOM_stbl },
    { ATOM_stsz,    MP4_ReadBox_stsz,         MP4_FreeBox_stsz,   ATOM_stbl },
    { ATOM_stsc,    MP4_ReadBox_stsc,         MP4_FreeBox_stsc,   ATOM_stbl },
    { ATOM_stco,    MP4_ReadBox_stco_co64,    MP4_FreeBox_stco_co64, ATOM_stbl },
    { ATOM_co64,    MP4_ReadBox_stco_co64,    MP4_FreeBox_stco_co64, ATOM_stbl },
    { ATOM_stss,    MP4_ReadBox_stss,         MP4_FreeBox_stss, ATOM_stbl },
    { ATOM_stsh,    MP4_ReadBox_stsh,         MP4_FreeBox_stsh, ATOM_stbl },
    { ATOM_stdp,    MP4_ReadBox_stdp,         MP4_FreeBox_stdp, 0 },
    { ATOM_padb,    MP4_ReadBox_padb,         MP4_FreeBox_padb, 0 },
    { ATOM_elst,    MP4_ReadBox_elst,         MP4_FreeBox_elst, ATOM_edts },
    { ATOM_cprt,    MP4_ReadBox_cprt,         MP4_FreeBox_cprt, 0 },
    { ATOM_esds,    MP4_ReadBox_esds,         MP4_FreeBox_esds, 0 },
    { ATOM_dcom,    MP4_ReadBox_dcom,         MP4_FreeBox_Common, 0 },
    { ATOM_cmvd,    MP4_ReadBox_cmvd,         MP4_FreeBox_cmvd, 0 },
    { ATOM_avcC,    MP4_ReadBox_avcC,         MP4_FreeBox_avcC, 0 },
    { ATOM_hvcC,    MP4_ReadBox_hvcC,         MP4_FreeBox_hvcC, 0 },
    { ATOM_dac3,    MP4_ReadBox_dac3,         MP4_FreeBox_Common, 0 },
    { ATOM_dvc1,    MP4_ReadBox_dvc1,         MP4_FreeBox_Common, 0 },
    { ATOM_enda,    MP4_ReadBox_enda,         MP4_FreeBox_Common, 0 },
    { ATOM_iods,    MP4_ReadBox_iods,         MP4_FreeBox_Common, 0 },
    { ATOM_pasp,    MP4_ReadBox_pasp,         MP4_FreeBox_Common, 0 },

    /* Nothing to do with this box */
    { ATOM_mdat,    MP4_ReadBoxSkip,          MP4_FreeBox_Common, 0 },
    { ATOM_skip,    MP4_ReadBoxSkip,          MP4_FreeBox_Common, 0 },
    { ATOM_free,    MP4_ReadBoxSkip,          MP4_FreeBox_Common, 0 },
    { ATOM_wide,    MP4_ReadBoxSkip,          MP4_FreeBox_Common, 0 },
    { ATOM_binm,    MP4_ReadBoxSkip,          MP4_FreeBox_Common, 0 },

    /* Subtitles */
    { ATOM_tx3g,    MP4_ReadBox_sample_tx3g,      MP4_FreeBox_Common, 0 },
    //{ ATOM_text,    MP4_ReadBox_sample_text,      MP4_FreeBox_Common, 0 },

    /* for codecs */
    { ATOM_soun,    MP4_ReadBox_sample_soun,  MP4_FreeBox_sample_soun, ATOM_stsd },
    { ATOM_lpcm,    MP4_ReadBox_sample_soun,  MP4_FreeBox_sample_soun, ATOM_stsd },
    { ATOM_ms02,    MP4_ReadBox_sample_soun,  MP4_FreeBox_sample_soun, ATOM_stsd },
    { ATOM_ms11,    MP4_ReadBox_sample_soun,  MP4_FreeBox_sample_soun, ATOM_stsd },
    { ATOM_ms55,    MP4_ReadBox_sample_soun,  MP4_FreeBox_sample_soun, ATOM_stsd },
    { ATOM__mp3,    MP4_ReadBox_sample_soun,  MP4_FreeBox_sample_soun, ATOM_stsd },
    { ATOM_mp4a,    MP4_ReadBox_sample_soun,  MP4_FreeBox_sample_soun, ATOM_stsd },
    { ATOM_twos,    MP4_ReadBox_sample_soun,  MP4_FreeBox_sample_soun, ATOM_stsd },
    { ATOM_sowt,    MP4_ReadBox_sample_soun,  MP4_FreeBox_sample_soun, ATOM_stsd },
    { ATOM_QDMC,    MP4_ReadBox_sample_soun,  MP4_FreeBox_sample_soun, ATOM_stsd },
    { ATOM_QDM2,    MP4_ReadBox_sample_soun,  MP4_FreeBox_sample_soun, ATOM_stsd },
    { ATOM_ima4,    MP4_ReadBox_sample_soun,  MP4_FreeBox_sample_soun, ATOM_stsd },
    { ATOM_IMA4,    MP4_ReadBox_sample_soun,  MP4_FreeBox_sample_soun, ATOM_stsd },
    { ATOM_dvi,     MP4_ReadBox_sample_soun,  MP4_FreeBox_sample_soun, ATOM_stsd },
    { ATOM_alaw,    MP4_ReadBox_sample_soun,  MP4_FreeBox_sample_soun, ATOM_stsd },
    { ATOM_ulaw,    MP4_ReadBox_sample_soun,  MP4_FreeBox_sample_soun, ATOM_stsd },
    { ATOM_raw,     MP4_ReadBox_sample_soun,  MP4_FreeBox_sample_soun, ATOM_stsd },
    { ATOM_MAC3,    MP4_ReadBox_sample_soun,  MP4_FreeBox_sample_soun, ATOM_stsd },
    { ATOM_MAC6,    MP4_ReadBox_sample_soun,  MP4_FreeBox_sample_soun, ATOM_stsd },
    { ATOM_Qclp,    MP4_ReadBox_sample_soun,  MP4_FreeBox_sample_soun, ATOM_stsd },
    { ATOM_samr,    MP4_ReadBox_sample_soun,  MP4_FreeBox_sample_soun, ATOM_stsd },
    { ATOM_sawb,    MP4_ReadBox_sample_soun,  MP4_FreeBox_sample_soun, ATOM_stsd },
    { ATOM_OggS,    MP4_ReadBox_sample_soun,  MP4_FreeBox_sample_soun, ATOM_stsd },
    { ATOM_alac,    MP4_ReadBox_sample_soun,  MP4_FreeBox_sample_soun, ATOM_stsd },

    { ATOM_drmi,    MP4_ReadBox_sample_vide,  MP4_FreeBox_sample_vide, ATOM_stsd },
    { ATOM_vide,    MP4_ReadBox_sample_vide,  MP4_FreeBox_sample_vide, ATOM_stsd },
    { ATOM_mp4v,    MP4_ReadBox_sample_vide,  MP4_FreeBox_sample_vide, ATOM_stsd },
    { ATOM_SVQ1,    MP4_ReadBox_sample_vide,  MP4_FreeBox_sample_vide, ATOM_stsd },
    { ATOM_SVQ3,    MP4_ReadBox_sample_vide,  MP4_FreeBox_sample_vide, ATOM_stsd },
    { ATOM_ZyGo,    MP4_ReadBox_sample_vide,  MP4_FreeBox_sample_vide, ATOM_stsd },
    { ATOM_DIVX,    MP4_ReadBox_sample_vide,  MP4_FreeBox_sample_vide, ATOM_stsd },
    { ATOM_XVID,    MP4_ReadBox_sample_vide,  MP4_FreeBox_sample_vide, ATOM_stsd },
    { ATOM_h263,    MP4_ReadBox_sample_vide,  MP4_FreeBox_sample_vide, ATOM_stsd },
    { ATOM_s263,    MP4_ReadBox_sample_vide,  MP4_FreeBox_sample_vide, ATOM_stsd },
    { ATOM_cvid,    MP4_ReadBox_sample_vide,  MP4_FreeBox_sample_vide, ATOM_stsd },
    { ATOM_3IV1,    MP4_ReadBox_sample_vide,  MP4_FreeBox_sample_vide, ATOM_stsd },
    { ATOM_3iv1,    MP4_ReadBox_sample_vide,  MP4_FreeBox_sample_vide, ATOM_stsd },
    { ATOM_3IV2,    MP4_ReadBox_sample_vide,  MP4_FreeBox_sample_vide, ATOM_stsd },
    { ATOM_3iv2,    MP4_ReadBox_sample_vide,  MP4_FreeBox_sample_vide, ATOM_stsd },
    { ATOM_3IVD,    MP4_ReadBox_sample_vide,  MP4_FreeBox_sample_vide, ATOM_stsd },
    { ATOM_3ivd,    MP4_ReadBox_sample_vide,  MP4_FreeBox_sample_vide, ATOM_stsd },
    { ATOM_3VID,    MP4_ReadBox_sample_vide,  MP4_FreeBox_sample_vide, ATOM_stsd },
    { ATOM_3vid,    MP4_ReadBox_sample_vide,  MP4_FreeBox_sample_vide, ATOM_stsd },
    { ATOM_mjpa,    MP4_ReadBox_sample_vide,  MP4_FreeBox_sample_vide, ATOM_stsd },
    { ATOM_mjpb,    MP4_ReadBox_sample_vide,  MP4_FreeBox_sample_vide, ATOM_stsd },
    { ATOM_qdrw,    MP4_ReadBox_sample_vide,  MP4_FreeBox_sample_vide, ATOM_stsd },
    { ATOM_mp2v,    MP4_ReadBox_sample_vide,  MP4_FreeBox_sample_vide, ATOM_stsd },
    { ATOM_hdv2,    MP4_ReadBox_sample_vide,  MP4_FreeBox_sample_vide, ATOM_stsd },

    { ATOM_mjqt,    MP4_ReadBox_default,      NULL, 0 }, /* found in mjpa/b */
    { ATOM_mjht,    MP4_ReadBox_default,      NULL, 0 },

    { ATOM_dvc,     MP4_ReadBox_sample_vide,  MP4_FreeBox_sample_vide, ATOM_stsd },
    { ATOM_dvp,     MP4_ReadBox_sample_vide,  MP4_FreeBox_sample_vide, ATOM_stsd },
    { ATOM_dv5n,    MP4_ReadBox_sample_vide,  MP4_FreeBox_sample_vide, ATOM_stsd },
    { ATOM_dv5p,    MP4_ReadBox_sample_vide,  MP4_FreeBox_sample_vide, ATOM_stsd },
    { ATOM_VP31,    MP4_ReadBox_sample_vide,  MP4_FreeBox_sample_vide, ATOM_stsd },
    { ATOM_vp31,    MP4_ReadBox_sample_vide,  MP4_FreeBox_sample_vide, ATOM_stsd },
    { ATOM_h264,    MP4_ReadBox_sample_vide,  MP4_FreeBox_sample_vide, ATOM_stsd },

    { ATOM_jpeg,    MP4_ReadBox_sample_vide,  MP4_FreeBox_sample_vide, ATOM_stsd },
    { ATOM_avc1,    MP4_ReadBox_sample_vide,  MP4_FreeBox_sample_vide, ATOM_stsd },

    { ATOM_yv12,    MP4_ReadBox_sample_vide,  MP4_FreeBox_sample_vide, 0 },
    { ATOM_yuv2,    MP4_ReadBox_sample_vide,  MP4_FreeBox_sample_vide, 0 },

    { ATOM_mp4s,    MP4_ReadBox_sample_mp4s,  MP4_FreeBox_Common, 0 },

    /* XXX there is 2 box where we could find this entry stbl and tref*/
    { ATOM_hint,    MP4_ReadBox_default,      MP4_FreeBox_Common, 0 },

    /* found in tref box */
    { ATOM_dpnd,    MP4_ReadBox_default,      NULL, 0 },
    { ATOM_ipir,    MP4_ReadBox_default,      NULL, 0 },
    { ATOM_mpod,    MP4_ReadBox_default,      NULL, 0 },
    { ATOM_chap,    MP4_ReadBox_tref_generic, MP4_FreeBox_tref_generic, 0 },

    /* found in hnti */
    { ATOM_rtp,     MP4_ReadBox_default,      NULL, 0 },

    /* found in rmra/rmda */
    { ATOM_rdrf,    MP4_ReadBox_rdrf,         MP4_FreeBox_rdrf  , ATOM_rmda },
    { ATOM_rmdr,    MP4_ReadBox_rmdr,         MP4_FreeBox_Common, ATOM_rmda },
    { ATOM_rmqu,    MP4_ReadBox_rmqu,         MP4_FreeBox_Common, ATOM_rmda },
    { ATOM_rmvc,    MP4_ReadBox_rmvc,         MP4_FreeBox_Common, ATOM_rmda },

    { ATOM_drms,    MP4_ReadBox_sample_soun,  MP4_FreeBox_sample_soun, 0 },
    { ATOM_sinf,    MP4_ReadBoxContainer,     MP4_FreeBox_Common, 0 },
    { ATOM_schi,    MP4_ReadBoxContainer,     MP4_FreeBox_Common, 0 },
    { ATOM_user,    MP4_ReadBox_drms,         MP4_FreeBox_Common, 0 },
    { ATOM_key,     MP4_ReadBox_drms,         MP4_FreeBox_Common, 0 },
    { ATOM_iviv,    MP4_ReadBox_drms,         MP4_FreeBox_Common, 0 },
    { ATOM_priv,    MP4_ReadBox_drms,         MP4_FreeBox_Common, 0 },
    { ATOM_frma,    MP4_ReadBox_frma,         MP4_FreeBox_Common, 0 },
    { ATOM_skcr,    MP4_ReadBox_skcr,         MP4_FreeBox_Common, 0 },

    /* ilst meta tags */
    { ATOM_0xa9ART, MP4_ReadBox_0xa9xxx,      MP4_FreeBox_0xa9xxx, ATOM_ilst },
    { ATOM_0xa9alb, MP4_ReadBox_0xa9xxx,      MP4_FreeBox_0xa9xxx, ATOM_ilst },
    { ATOM_0xa9cmt, MP4_ReadBox_0xa9xxx,      MP4_FreeBox_0xa9xxx, ATOM_ilst },
    { ATOM_0xa9com, MP4_ReadBox_0xa9xxx,      MP4_FreeBox_0xa9xxx, ATOM_ilst },
    { ATOM_0xa9day, MP4_ReadBox_0xa9xxx,      MP4_FreeBox_0xa9xxx, ATOM_ilst },
    { ATOM_0xa9des, MP4_ReadBox_0xa9xxx,      MP4_FreeBox_0xa9xxx, ATOM_ilst },
    { ATOM_0xa9enc, MP4_ReadBox_0xa9xxx,      MP4_FreeBox_0xa9xxx, ATOM_ilst },
    { ATOM_0xa9gen, MP4_ReadBox_0xa9xxx,      MP4_FreeBox_0xa9xxx, ATOM_ilst },
    { ATOM_0xa9grp, MP4_ReadBox_0xa9xxx,      MP4_FreeBox_0xa9xxx, ATOM_ilst },
    { ATOM_0xa9lyr, MP4_ReadBox_0xa9xxx,      MP4_FreeBox_0xa9xxx, ATOM_ilst },
    { ATOM_0xa9nam, MP4_ReadBox_0xa9xxx,      MP4_FreeBox_0xa9xxx, ATOM_ilst },
    { ATOM_0xa9too, MP4_ReadBox_0xa9xxx,      MP4_FreeBox_0xa9xxx, ATOM_ilst },
    { ATOM_0xa9trk, MP4_ReadBox_0xa9xxx,      MP4_FreeBox_0xa9xxx, ATOM_ilst },
    { ATOM_0xa9wrt, MP4_ReadBox_0xa9xxx,      MP4_FreeBox_0xa9xxx, ATOM_ilst },
    { ATOM_covr,    MP4_ReadBoxContainer,     MP4_FreeBox_Common,  ATOM_ilst },
    { ATOM_gnre,    MP4_ReadBox_gnre,         MP4_FreeBox_Common,  ATOM_ilst },

    /* udta */
    { ATOM_0xa9ART, MP4_ReadBox_0xa9xxx,      MP4_FreeBox_0xa9xxx, ATOM_udta },
    { ATOM_0xa9alb, MP4_ReadBox_0xa9xxx,      MP4_FreeBox_0xa9xxx, ATOM_udta },
    { ATOM_0xa9ard, MP4_ReadBox_0xa9xxx,      MP4_FreeBox_0xa9xxx, ATOM_udta },
    { ATOM_0xa9arg, MP4_ReadBox_0xa9xxx,      MP4_FreeBox_0xa9xxx, ATOM_udta },
    { ATOM_0xa9aut, MP4_ReadBox_0xa9xxx,      MP4_FreeBox_0xa9xxx, ATOM_udta },
    { ATOM_0xa9cak, MP4_ReadBox_0xa9xxx,      MP4_FreeBox_0xa9xxx, ATOM_udta },
    { ATOM_0xa9cmt, MP4_ReadBox_0xa9xxx,      MP4_FreeBox_0xa9xxx, ATOM_udta },
    { ATOM_0xa9con, MP4_ReadBox_0xa9xxx,      MP4_FreeBox_0xa9xxx, ATOM_udta },
    { ATOM_0xa9com, MP4_ReadBox_0xa9xxx,      MP4_FreeBox_0xa9xxx, ATOM_udta },
    { ATOM_0xa9cpy, MP4_ReadBox_0xa9xxx,      MP4_FreeBox_0xa9xxx, ATOM_udta },
    { ATOM_0xa9day, MP4_ReadBox_0xa9xxx,      MP4_FreeBox_0xa9xxx, ATOM_udta },
    { ATOM_0xa9des, MP4_ReadBox_0xa9xxx,      MP4_FreeBox_0xa9xxx, ATOM_udta },
    { ATOM_0xa9dir, MP4_ReadBox_0xa9xxx,      MP4_FreeBox_0xa9xxx, ATOM_udta },
    { ATOM_0xa9dis, MP4_ReadBox_0xa9xxx,      MP4_FreeBox_0xa9xxx, ATOM_udta },
    { ATOM_0xa9dsa, MP4_ReadBox_0xa9xxx,      MP4_FreeBox_0xa9xxx, ATOM_udta },
    { ATOM_0xa9fmt, MP4_ReadBox_0xa9xxx,      MP4_FreeBox_0xa9xxx, ATOM_udta },
    { ATOM_0xa9gen, MP4_ReadBox_0xa9xxx,      MP4_FreeBox_0xa9xxx, ATOM_udta },
    { ATOM_0xa9grp, MP4_ReadBox_0xa9xxx,      MP4_FreeBox_0xa9xxx, ATOM_udta },
    { ATOM_0xa9hst, MP4_ReadBox_0xa9xxx,      MP4_FreeBox_0xa9xxx, ATOM_udta },
    { ATOM_0xa9inf, MP4_ReadBox_0xa9xxx,      MP4_FreeBox_0xa9xxx, ATOM_udta },
    { ATOM_0xa9isr, MP4_ReadBox_0xa9xxx,      MP4_FreeBox_0xa9xxx, ATOM_udta },
    { ATOM_0xa9lab, MP4_ReadBox_0xa9xxx,      MP4_FreeBox_0xa9xxx, ATOM_udta },
    { ATOM_0xa9lal, MP4_ReadBox_0xa9xxx,      MP4_FreeBox_0xa9xxx, ATOM_udta },
    { ATOM_0xa9lnt, MP4_ReadBox_0xa9xxx,      MP4_FreeBox_0xa9xxx, ATOM_udta },
    { ATOM_0xa9lyr, MP4_ReadBox_0xa9xxx,      MP4_FreeBox_0xa9xxx, ATOM_udta },
    { ATOM_0xa9mak, MP4_ReadBox_0xa9xxx,      MP4_FreeBox_0xa9xxx, ATOM_udta },
    { ATOM_0xa9mal, MP4_ReadBox_0xa9xxx,      MP4_FreeBox_0xa9xxx, ATOM_udta },
    { ATOM_0xa9mod, MP4_ReadBox_0xa9xxx,      MP4_FreeBox_0xa9xxx, ATOM_udta },
    { ATOM_0xa9ope, MP4_ReadBox_0xa9xxx,      MP4_FreeBox_0xa9xxx, ATOM_udta },
    { ATOM_0xa9phg, MP4_ReadBox_0xa9xxx,      MP4_FreeBox_0xa9xxx, ATOM_udta },
    { ATOM_0xa9PRD, MP4_ReadBox_0xa9xxx,      MP4_FreeBox_0xa9xxx, ATOM_udta },
    { ATOM_0xa9prd, MP4_ReadBox_0xa9xxx,      MP4_FreeBox_0xa9xxx, ATOM_udta },
    { ATOM_0xa9prf, MP4_ReadBox_0xa9xxx,      MP4_FreeBox_0xa9xxx, ATOM_udta },
    { ATOM_0xa9pub, MP4_ReadBox_0xa9xxx,      MP4_FreeBox_0xa9xxx, ATOM_udta },
    { ATOM_0xa9req, MP4_ReadBox_0xa9xxx,      MP4_FreeBox_0xa9xxx, ATOM_udta },
    { ATOM_0xa9sne, MP4_ReadBox_0xa9xxx,      MP4_FreeBox_0xa9xxx, ATOM_udta },
    { ATOM_0xa9snm, MP4_ReadBox_0xa9xxx,      MP4_FreeBox_0xa9xxx, ATOM_udta },
    { ATOM_0xa9sol, MP4_ReadBox_0xa9xxx,      MP4_FreeBox_0xa9xxx, ATOM_udta },
    { ATOM_0xa9src, MP4_ReadBox_0xa9xxx,      MP4_FreeBox_0xa9xxx, ATOM_udta },
    { ATOM_0xa9st3, MP4_ReadBox_0xa9xxx,      MP4_FreeBox_0xa9xxx, ATOM_udta },
    { ATOM_0xa9swr, MP4_ReadBox_0xa9xxx,      MP4_FreeBox_0xa9xxx, ATOM_udta },
    { ATOM_0xa9thx, MP4_ReadBox_0xa9xxx,      MP4_FreeBox_0xa9xxx, ATOM_udta },
    { ATOM_0xa9too, MP4_ReadBox_0xa9xxx,      MP4_FreeBox_0xa9xxx, ATOM_udta },
    { ATOM_0xa9trk, MP4_ReadBox_0xa9xxx,      MP4_FreeBox_0xa9xxx, ATOM_udta },
    { ATOM_0xa9url, MP4_ReadBox_0xa9xxx,      MP4_FreeBox_0xa9xxx, ATOM_udta },
    { ATOM_0xa9wrn, MP4_ReadBox_0xa9xxx,      MP4_FreeBox_0xa9xxx, ATOM_udta },
    { ATOM_0xa9xpd, MP4_ReadBox_0xa9xxx,      MP4_FreeBox_0xa9xxx, ATOM_udta },
    { ATOM_0xa9xyz, MP4_ReadBox_0xa9xxx,      MP4_FreeBox_0xa9xxx, ATOM_udta },
    { ATOM_chpl,    MP4_ReadBox_chpl,         MP4_FreeBox_chpl,    ATOM_udta },
    { ATOM_covr,    MP4_ReadBoxContainer,     MP4_FreeBox_Common,  ATOM_udta },
    { ATOM_gnre,    MP4_ReadBox_gnre,         MP4_FreeBox_Common,  ATOM_udta },
    { ATOM_name,    MP4_ReadBox_name,         MP4_FreeBox_name,    ATOM_udta },
    { ATOM_trkn,    MP4_ReadBox_trkn,         MP4_FreeBox_Common,  ATOM_udta },

    /* iTunes/Quicktime meta info */
    { ATOM_meta,    MP4_ReadBox_meta,         MP4_FreeBox_Common,  0 },
    { ATOM_data,    MP4_ReadBox_data,         MP4_FreeBox_data,    0 },

    /* found in smoothstreaming */
    { ATOM_traf,    MP4_ReadBoxContainer,     MP4_FreeBox_Common,  ATOM_moof },
    { ATOM_mfra,    MP4_ReadBoxContainer,     MP4_FreeBox_Common,  0 },
    { ATOM_mfhd,    MP4_ReadBox_mfhd,         MP4_FreeBox_Common,  ATOM_moof },
    { ATOM_sidx,    MP4_ReadBox_sidx,         MP4_FreeBox_sidx,    0 },
    { ATOM_tfhd,    MP4_ReadBox_tfhd,         MP4_FreeBox_Common,  ATOM_traf },
    { ATOM_trun,    MP4_ReadBox_trun,         MP4_FreeBox_trun,    ATOM_traf },
    { ATOM_trex,    MP4_ReadBox_trex,         MP4_FreeBox_Common,  ATOM_mvex },
    { ATOM_mehd,    MP4_ReadBox_mehd,         MP4_FreeBox_Common,  ATOM_mvex },
    { ATOM_sdtp,    MP4_ReadBox_sdtp,         MP4_FreeBox_sdtp,    0 },
    { ATOM_tfra,    MP4_ReadBox_tfra,         MP4_FreeBox_tfra,    ATOM_mfra },
    { ATOM_mfro,    MP4_ReadBox_mfro,         MP4_FreeBox_Common,  ATOM_mfra },
    { ATOM_uuid,    MP4_ReadBox_uuid,         MP4_FreeBox_uuid,    0 },

    /* Last entry */
    { 0,              MP4_ReadBox_default,      NULL, 0 }
};


/*****************************************************************************
 * MP4_ReadBox : parse the actual box and the children
 *  XXX : Do not go to the next box
 *****************************************************************************/
static MP4_Box_t *MP4_ReadBox( stream_t *p_stream, MP4_Box_t *p_father )
{
    MP4_Box_t *p_box = calloc( 1, sizeof( MP4_Box_t ) ); /* Needed to ensure simple on error handler */
    unsigned int i_index;

    if( p_box == NULL )
        return NULL;

    if( !MP4_ReadBoxCommon( p_stream, p_box ) )
    {
        msg_Warn( p_stream, "cannot read one box" );
        free( p_box );
        return NULL;
    }

    if( p_father && p_father->i_size > 0 &&
        p_father->i_pos + p_father->i_size < p_box->i_pos + p_box->i_size )
    {
        msg_Dbg( p_stream, "out of bound child" );
        free( p_box );
        return NULL;
    }

    if( !p_box->i_size )
    {
        msg_Dbg( p_stream, "found an empty box (null size)" );
        free( p_box );
        return NULL;
    }
    p_box->p_father = p_father;

    /* Now search function to call */
    for( i_index = 0; ; i_index++ )
    {
        if ( MP4_Box_Function[i_index].i_parent &&
             p_box->p_father &&
             p_box->p_father->i_type != MP4_Box_Function[i_index].i_parent )
            continue;

        if( ( MP4_Box_Function[i_index].i_type == p_box->i_type )||
            ( MP4_Box_Function[i_index].i_type == 0 ) )
        {
            break;
        }
    }

    if( !(MP4_Box_Function[i_index].MP4_ReadBox_function)( p_stream, p_box ) )
    {
        MP4_BoxFree( p_stream, p_box );
        return NULL;
    }

    return p_box;
}

/*****************************************************************************
 * MP4_FreeBox : free memory after read with MP4_ReadBox and all
 * the children
 *****************************************************************************/
void MP4_BoxFree( stream_t *s, MP4_Box_t *p_box )
{
    unsigned int i_index;
    MP4_Box_t    *p_child;

    if( !p_box )
        return; /* hehe */

    for( p_child = p_box->p_first; p_child != NULL; )
    {
        MP4_Box_t *p_next;

        p_next = p_child->p_next;
        MP4_BoxFree( s, p_child );
        p_child = p_next;
    }

    /* Now search function to call */
    if( p_box->data.p_payload )
    {
        for( i_index = 0; ; i_index++ )
        {
            if ( MP4_Box_Function[i_index].i_parent &&
                 p_box->p_father &&
                 p_box->p_father->i_type != MP4_Box_Function[i_index].i_parent )
                continue;

            if( ( MP4_Box_Function[i_index].i_type == p_box->i_type )||
                ( MP4_Box_Function[i_index].i_type == 0 ) )
            {
                break;
            }
        }
        if( MP4_Box_Function[i_index].MP4_FreeBox_function == NULL )
        {
            /* Should not happen */
            if MP4_BOX_TYPE_ASCII()
                msg_Warn( s,
                        "cannot free box %4.4s, type unknown",
                        (char*)&p_box->i_type );
            else
                msg_Warn( s,
                        "cannot free box c%3.3s, type unknown",
                        (char*)&p_box->i_type+1 );
        }
        else
        {
            MP4_Box_Function[i_index].MP4_FreeBox_function( p_box );
        }
        free( p_box->data.p_payload );
    }
    free( p_box );
}

/* SmooBox is a very simple MP4 box, VLC specific, used only for the stream_filter to
 * send information to the demux. SmooBox is actually a simplified moov box (we wanted
 * to avoid the hassle of building a moov box at the stream_filter level) */
MP4_Box_t *MP4_BoxGetSmooBox( stream_t *s )
{
    /* p_chunk is a virtual root container for the smoo box */
    MP4_Box_t *p_chunk;
    MP4_Box_t *p_smoo;

    p_chunk = calloc( 1, sizeof( MP4_Box_t ) );
    if( unlikely( p_chunk == NULL ) )
        return NULL;

    p_chunk->i_type = ATOM_root;
    p_chunk->i_shortsize = 1;

    p_smoo = MP4_ReadBox( s, p_chunk );
    if( !p_smoo || p_smoo->i_type != ATOM_uuid || CmpUUID( &p_smoo->i_uuid, &SmooBoxUUID ) )
    {
        msg_Warn( s, "no smoo box found!");
        goto error;
    }

    p_chunk->p_first = p_smoo;
    p_chunk->p_last = p_smoo;

    return p_chunk;

error:
    free( p_chunk );
    return NULL;
}

MP4_Box_t *MP4_BoxGetNextChunk( stream_t *s )
{
    /* p_chunk is a virtual root container for the moof and mdat boxes */
    MP4_Box_t *p_chunk;
    MP4_Box_t *p_tmp_box = NULL;

    p_tmp_box = calloc( 1, sizeof( MP4_Box_t ) );
    if( unlikely( p_tmp_box == NULL ) )
        return NULL;

    /* We might get a ftyp box or a SmooBox */
    MP4_ReadBoxCommon( s, p_tmp_box );

    if( (p_tmp_box->i_type == ATOM_uuid && !CmpUUID( &p_tmp_box->i_uuid, &SmooBoxUUID )) )
    {
        free( p_tmp_box );
        return MP4_BoxGetSmooBox( s );
    }
    else if( p_tmp_box->i_type == ATOM_ftyp )
    {
        free( p_tmp_box );
        return MP4_BoxGetRoot( s );
    }
    free( p_tmp_box );

    p_chunk = calloc( 1, sizeof( MP4_Box_t ) );
    if( unlikely( p_chunk == NULL ) )
        return NULL;

    p_chunk->i_type = ATOM_root;
    p_chunk->i_shortsize = 1;

    MP4_ReadBoxContainerChildren( s, p_chunk, ATOM_moof );

    p_tmp_box = p_chunk->p_first;
    while( p_tmp_box )
    {
        p_chunk->i_size += p_tmp_box->i_size;
        p_tmp_box = p_tmp_box->p_next;
    }

    return p_chunk;
}

/*****************************************************************************
 * MP4_BoxGetRoot : Parse the entire file, and create all boxes in memory
 *****************************************************************************
 *  The first box is a virtual box "root" and is the father for all first
 *  level boxes for the file, a sort of virtual contener
 *****************************************************************************/
MP4_Box_t *MP4_BoxGetRoot( stream_t *s )
{
    MP4_Box_t *p_root;
    stream_t *p_stream;
    int i_result;

    p_root = malloc( sizeof( MP4_Box_t ) );
    if( p_root == NULL )
        return NULL;

    p_root->i_pos = 0;
    p_root->i_type = ATOM_root;
    p_root->i_shortsize = 1;
    /* could be a DASH stream for exemple, 0 means unknown or infinite size */
    p_root->i_size = 0;
    CreateUUID( &p_root->i_uuid, p_root->i_type );

    p_root->data.p_payload = NULL;
    p_root->p_father    = NULL;
    p_root->p_first     = NULL;
    p_root->p_last      = NULL;
    p_root->p_next      = NULL;

    p_stream = s;

    /* First get the moov */
    i_result = MP4_ReadBoxContainerChildren( p_stream, p_root, ATOM_moov );

    if( !i_result )
        goto error;
    /* If there is a mvex box, it means fragmented MP4, and we're done */
    else if( MP4_BoxCount( p_root, "moov/mvex" ) > 0 )
        return p_root;

    p_root->i_size = stream_Size( s );
    if( stream_Tell( s ) + 8 < stream_Size( s ) )
    {
        /* Get the rest of the file */
        i_result = MP4_ReadBoxContainerRaw( p_stream, p_root );

        if( !i_result )
            goto error;
    }

    MP4_Box_t *p_moov;
    MP4_Box_t *p_cmov;

    /* check if there is a cmov, if so replace
      compressed moov by  uncompressed one */
    if( ( ( p_moov = MP4_BoxGet( p_root, "moov" ) ) &&
          ( p_cmov = MP4_BoxGet( p_root, "moov/cmov" ) ) ) ||
        ( ( p_moov = MP4_BoxGet( p_root, "foov" ) ) &&
          ( p_cmov = MP4_BoxGet( p_root, "foov/cmov" ) ) ) )
    {
        /* rename the compressed moov as a box to skip */
        p_moov->i_type = ATOM_skip;

        /* get uncompressed p_moov */
        p_moov = p_cmov->data.p_cmov->p_moov;
        p_cmov->data.p_cmov->p_moov = NULL;

        /* make p_root father of this new moov */
        p_moov->p_father = p_root;

        /* insert this new moov box as first child of p_root */
        p_moov->p_next = p_root->p_first;
        p_root->p_first = p_moov;
    }

    return p_root;

error:
    free( p_root );
    stream_Seek( p_stream, 0 );
    return NULL;
}


static void MP4_BoxDumpStructure_Internal( stream_t *s,
                                    MP4_Box_t *p_box, unsigned int i_level )
{
    MP4_Box_t *p_child;

    if( !i_level )
    {
        if MP4_BOX_TYPE_ASCII()
            msg_Dbg( s, "dumping root Box \"%4.4s\"",
                              (char*)&p_box->i_type );
        else
            msg_Dbg( s, "dumping root Box \"c%3.3s\"",
                              (char*)&p_box->i_type+1 );
    }
    else
    {
        char str[512];
        if( i_level >= (sizeof(str) - 1)/4 )
            return;

        memset( str, ' ', sizeof(str) );
        for( unsigned i = 0; i < i_level; i++ )
        {
            str[i*4] = '|';
        }
        if( MP4_BOX_TYPE_ASCII() )
            snprintf( &str[i_level * 4], sizeof(str) - 4*i_level,
                      "+ %4.4s size %"PRIu64" offset %ld",
                        (char*)&p_box->i_type, p_box->i_size, p_box->i_pos );
        else
            snprintf( &str[i_level * 4], sizeof(str) - 4*i_level,
                      "+ c%3.3s size %"PRIu64" offset %ld",
                        (char*)&p_box->i_type+1, p_box->i_size, p_box->i_pos );
        msg_Dbg( s, "%s", str );
    }
    p_child = p_box->p_first;
    while( p_child )
    {
        MP4_BoxDumpStructure_Internal( s, p_child, i_level + 1 );
        p_child = p_child->p_next;
    }
}

void MP4_BoxDumpStructure( stream_t *s, MP4_Box_t *p_box )
{
    MP4_BoxDumpStructure_Internal( s, p_box, 0 );
}


/*****************************************************************************
 *****************************************************************************
 **
 **  High level methods to acces an MP4 file
 **
 *****************************************************************************
 *****************************************************************************/
static void get_token( char **ppsz_path, char **ppsz_token, int *pi_number )
{
    size_t i_len ;
    if( !*ppsz_path[0] )
    {
        *ppsz_token = NULL;
        *pi_number = 0;
        return;
    }
    i_len = strcspn( *ppsz_path, "/[" );
    if( !i_len && **ppsz_path == '/' )
    {
        i_len = 1;
    }
    *ppsz_token = strndup( *ppsz_path, i_len );
    if( unlikely(!*ppsz_token) )
        abort();

    *ppsz_path += i_len;

    if( **ppsz_path == '[' )
    {
        (*ppsz_path)++;
        *pi_number = strtol( *ppsz_path, NULL, 10 );
        while( **ppsz_path && **ppsz_path != ']' )
        {
            (*ppsz_path)++;
        }
        if( **ppsz_path == ']' )
        {
            (*ppsz_path)++;
        }
    }
    else
    {
        *pi_number = 0;
    }
    while( **ppsz_path == '/' )
    {
        (*ppsz_path)++;
    }
}

static void MP4_BoxGet_Internal( MP4_Box_t **pp_result,
                          MP4_Box_t *p_box, const char *psz_fmt, va_list args)
{
    char *psz_dup;
    char *psz_path;
    char *psz_token;

    if( !p_box )
    {
        *pp_result = NULL;
        return;
    }

    if( vasprintf( &psz_path, psz_fmt, args ) == -1 )
        psz_path = NULL;

    if( !psz_path || !psz_path[0] )
    {
        free( psz_path );
        *pp_result = NULL;
        return;
    }

//    fprintf( stderr, "path:'%s'\n", psz_path );
    psz_dup = psz_path; /* keep this pointer, as it need to be unallocated */
    for( ; ; )
    {
        int i_number;

        get_token( &psz_path, &psz_token, &i_number );
//        fprintf( stderr, "path:'%s', token:'%s' n:%d\n",
//                 psz_path,psz_token,i_number );
        if( !psz_token )
        {
            free( psz_dup );
            *pp_result = p_box;
            return;
        }
        else
        if( !strcmp( psz_token, "/" ) )
        {
            /* Find root box */
            while( p_box && p_box->i_type != ATOM_root )
            {
                p_box = p_box->p_father;
            }
            if( !p_box )
            {
                goto error_box;
            }
        }
        else
        if( !strcmp( psz_token, "." ) )
        {
            /* Do nothing */
        }
        else
        if( !strcmp( psz_token, ".." ) )
        {
            p_box = p_box->p_father;
            if( !p_box )
            {
                goto error_box;
            }
        }
        else
        if( strlen( psz_token ) == 4 )
        {
            uint32_t i_fourcc;
            i_fourcc = VLC_FOURCC( psz_token[0], psz_token[1],
                                   psz_token[2], psz_token[3] );
            p_box = p_box->p_first;
            for( ; ; )
            {
                if( !p_box )
                {
                    goto error_box;
                }
                if( p_box->i_type == i_fourcc )
                {
                    if( !i_number )
                    {
                        break;
                    }
                    i_number--;
                }
                p_box = p_box->p_next;
            }
        }
        else
        if( *psz_token == '\0' )
        {
            p_box = p_box->p_first;
            for( ; ; )
            {
                if( !p_box )
                {
                    goto error_box;
                }
                if( !i_number )
                {
                    break;
                }
                i_number--;
                p_box = p_box->p_next;
            }
        }
        else
        {
//            fprintf( stderr, "Argg malformed token \"%s\"",psz_token );
            goto error_box;
        }

        FREENULL( psz_token );
    }

    return;

error_box:
    free( psz_token );
    free( psz_dup );
    *pp_result = NULL;
    return;
}

/*****************************************************************************
 * MP4_BoxGet: find a box given a path relative to p_box
 *****************************************************************************
 * Path Format: . .. / as usual
 *              [number] to specifie box number ex: trak[12]
 *
 * ex: /moov/trak[12]
 *     ../mdia
 *****************************************************************************/
MP4_Box_t *MP4_BoxGet( MP4_Box_t *p_box, const char *psz_fmt, ... )
{
    va_list args;
    MP4_Box_t *p_result;

    va_start( args, psz_fmt );
    MP4_BoxGet_Internal( &p_result, p_box, psz_fmt, args );
    va_end( args );

    return( p_result );
}

/*****************************************************************************
 * MP4_BoxCount: count box given a path relative to p_box
 *****************************************************************************
 * Path Format: . .. / as usual
 *              [number] to specifie box number ex: trak[12]
 *
 * ex: /moov/trak[12]
 *     ../mdia
 *****************************************************************************/
int MP4_BoxCount( MP4_Box_t *p_box, const char *psz_fmt, ... )
{
    va_list args;
    int     i_count;
    MP4_Box_t *p_result, *p_next;

    va_start( args, psz_fmt );
    MP4_BoxGet_Internal( &p_result, p_box, psz_fmt, args );
    va_end( args );
    if( !p_result )
    {
        return( 0 );
    }

    i_count = 1;
    for( p_next = p_result->p_next; p_next != NULL; p_next = p_next->p_next)
    {
        if( p_next->i_type == p_result->i_type)
        {
            i_count++;
        }
    }
    return( i_count );
}
