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gear-lib/libmp4parser/mp4parser_inner.c
gozfree ac44a17611 [LICENSE] change LGPLv3 to MIT license
2019-01-26 15:51:51 +08:00

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/******************************************************************************
* Copyright (C) 2014-2020 Zhifeng Gong <gozfree@163.com>
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
******************************************************************************/
#ifdef HAVE_ZLIB_H
# include <zlib.h> /* for compressed moov */
#endif
#include "mp4parser_inner.h"
#include "patch.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 =
(uint32_t *)calloc( p_box->data.p_ftyp->i_compatible_brands_count,
sizeof(uint32_t));
if( unlikely( tab == NULL ) )
MP4_READBOX_EXIT( 0 );
unsigned i;
for( 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 );
unsigned i;
for( i = 0; i < 2; i++ )
{
MP4_GET4BYTES( p_box->data.p_mvhd->i_reserved2[i] );
}
for( i = 0; i < 9; i++ )
{
MP4_GET4BYTES( p_box->data.p_mvhd->i_matrix[i] );
}
for( 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(%f) 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_duration*1.0/p_box->data.p_mvhd->i_timescale*1.0),
(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 = (TfrfBoxDataFields_t *)calloc( p_tfrf_data->i_fragment_count,
sizeof( TfrfBoxDataFields_t ) );
if( !p_tfrf_data->p_tfrf_data_fields )
MP4_READBOX_EXIT( 0 );
uint8_t i;
for( 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 = (uint8_t *)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 = (MP4_Box_sidx_item_t *)calloc( i_count, sizeof( MP4_Box_sidx_item_t ) );
uint32_t tmp;
unsigned i;
for( 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 =
(MP4_descriptor_trun_sample_t *)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 );
unsigned int i;
for( 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 );
}
unsigned i;
for( 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( 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]);
translate[1] = translate[1];
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 = (unsigned char *)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 );
unsigned i;
for( 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 =
(uint32_t *)calloc( p_box->data.p_stts->i_entry_count, sizeof(uint32_t) );
p_box->data.p_stts->pi_sample_delta =
(int32_t *)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 =
(uint32_t *)calloc( p_box->data.p_ctts->i_entry_count, sizeof(uint32_t) );
p_box->data.p_ctts->pi_sample_offset =
(int32_t *)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 =
(MP4_descriptor_decoder_config_t *)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 = (uint8_t *)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 = (uint8_t *)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 = (uint8_t *)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 = (uint16_t *)calloc( p_avcC->i_sps, sizeof( uint16_t ) );
p_avcC->sps = (uint8_t **)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] = (uint8_t *)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 = (uint16_t *)calloc( p_avcC->i_pps, sizeof( uint16_t ) );
p_avcC->pps = (uint8_t **)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] = (uint8_t *)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 = (uint8_t *)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 );
}
unsigned i;
for( 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 = (uint8_t *)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 );
unsigned i;
for( 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 = (uint8_t *)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 =
(uint32_t *)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 );
unsigned int i;
for( 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 =
(uint32_t *)calloc( p_box->data.p_stsc->i_entry_count, sizeof(uint32_t) );
p_box->data.p_stsc->i_samples_per_chunk =
(uint32_t *)calloc( p_box->data.p_stsc->i_entry_count, sizeof(uint32_t) );
p_box->data.p_stsc->i_sample_description_index =
(uint32_t *)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 );
}
unsigned int i;
for( 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 =
(uint64_t *)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 );
unsigned int i;
for( 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 =
(uint32_t *)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 =
(uint32_t *)calloc( p_box->data.p_stsh->i_entry_count, sizeof(uint32_t) );
p_box->data.p_stsh->i_sync_sample_number =
(uint32_t *)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 =
(uint16_t *)calloc( i_read / 2, sizeof(uint16_t) );
if( unlikely( !p_box->data.p_stdp->i_priority ) )
MP4_READBOX_EXIT( 0 );
unsigned i;
for( 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 = (uint16_t *)calloc( count, sizeof(uint16_t) );
p_box->data.p_padb->i_pad2 = (uint16_t *)calloc( count, sizeof(uint16_t) );
p_box->data.p_padb->i_reserved2 = (uint16_t *)calloc( count, sizeof(uint16_t) );
p_box->data.p_padb->i_pad1 = (uint16_t *)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 );
}
unsigned int i;
for( 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 =
(uint64_t *)calloc( p_box->data.p_elst->i_entry_count, sizeof(uint64_t) );
p_box->data.p_elst->i_media_time =
(int64_t *)calloc( p_box->data.p_elst->i_entry_count, sizeof(int64_t) );
p_box->data.p_elst->i_media_rate_integer =
(uint16_t *)calloc( p_box->data.p_elst->i_entry_count, sizeof(uint16_t) );
p_box->data.p_elst->i_media_rate_fraction =
(uint16_t *)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 = (uint8_t *)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 = (MP4_Box_data_cmov_t *)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 = (uint8_t *)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 = (char *)malloc( i_len );
if( p_box->data.p_rdrf->psz_ref == NULL )
MP4_READBOX_EXIT( 0 );
i_len--;
unsigned i;
for( 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 = (char *)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 = (uint8_t *)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 = (char *)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 = (char *)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;
unsigned i;
for( 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 = (char *)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 = (uint32_t *)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 );
unsigned i;
for( 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 = (uint8_t *)calloc( i_sample_count, 1 );
if( !p_sdtp->p_sample_table )
MP4_READBOX_EXIT( 0 );
uint32_t i;
for( 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 = (uint32_t *)calloc( i_number_of_entries, size );
p_tfra->p_moof_offset = (uint32_t *)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 = (uint8_t *)calloc( i_number_of_entries, size );
size = 1 + p_tfra->i_length_size_of_trun_num;
p_tfra->p_trun_number = (uint8_t *)calloc( i_number_of_entries, size );
size = 1 + p_tfra->i_length_size_of_sample_num;
p_tfra->p_sample_number = (uint8_t *)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 = (MP4_Box_t *)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 = (MP4_Box_t *)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 = (MP4_Box_t *)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 = (MP4_Box_t *)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 = (MP4_Box_t *)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) );
unsigned i;
for( 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 %" PRIu64,
(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 %" PRIu64,
(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 );
}
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