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mp4.c
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#include <stdio.h>
#include <stdlib.h>
#include <memory.h>
#include <assert.h>
#include <math.h>
#include <stdarg.h>
#include "mp4.h"
void *debug_malloc(size_t size, const char *file, int line, const char *func)
{
void *p;
p = malloc(size);
printf("%s:%d:%s:malloc(%ld): p=0x%lx\n",
file, line, func, size, (unsigned long)p);
return p;
}
//#define malloc(s) debug_malloc(s, __FILE__, __LINE__, __func__)
void *debug_free(char *p)
{
//printf("%s:%d:%s:free(0x%lx)\n", __FILE__, __LINE__, __func__, (unsigned long)p);
if(NULL!=(p))
{
free(p) ;
p = NULL;
}
}
//#define free(p) do { \
// printf("%s:%d:%s:free(0x%lx)\n", __FILE__, __LINE__, \
// __func__, (unsigned long)p); \
// if (p) { \
// free(p); \
// p = NULL; \
// } \
//} while (0)
//#define free(p) debug_free(p)
#define msg_Dbg(x) do {} while (0)
#define msg_Warn(x) do {} while (0)
#define msg_Err(x) do {} while (0)
#ifndef M_PI
#define M_PI 3.14159265358979323846
#endif
#define max(a,b) a>b?a:b
#define min(a,b) a>b?b:a
#define FREENULL(a) do { free( a ); a = NULL; } while(0)
#define MP4_GETX_PRIVATE(dst, code, size) do { \
if( (i_read) >= (size) ) { dst = (code); p_peek += (size); } \
else { dst = 0; } \
i_read -= (size); \
} while(0)
static uint32_t mp4_box_headersize( mp4_box_t *p_box )
{
return 8
+ ( p_box->i_shortsize == 1 ? 8 : 0 )
+ ( p_box->i_type == ATOM_uuid ? 16 : 0 );
}
static uint32_t Get24bBE( const uint8_t *p )
{
return( ( p[0] <<16 ) + ( p[1] <<8 ) + p[2] );
}
#define MP4_GET1BYTE( dst ) MP4_GETX_PRIVATE( dst, *p_peek, 1 )
#define MP4_GET2BYTES( dst ) MP4_GETX_PRIVATE( dst, SwapBE16(*(uint16_t*)p_peek), 2 )
#define MP4_GET3BYTES( dst ) MP4_GETX_PRIVATE( dst, Get24bBE(p_peek), 3 )
#define MP4_GET4BYTES( dst ) MP4_GETX_PRIVATE( dst, SwapBE32(*(uint32_t*)p_peek), 4 )
#define MP4_GET8BYTES( dst ) MP4_GETX_PRIVATE( dst, SwapBE64(*(uint64_t*)p_peek), 8 )
#define MP4_GETFOURCC( dst ) MP4_GETX_PRIVATE( dst, \
MP4_FOURCC(p_peek[0],p_peek[1],p_peek[2],p_peek[3]), 4)
#define MP4_GETVERSIONFLAGS( p_void ) \
MP4_GET1BYTE( p_void->version ); \
MP4_GET3BYTES( p_void->flags )
#define MP4_GETSTRINGZ( p_str ) \
if( (i_read > 0) && (p_peek[0]) ) \
{ \
const int __i_copy__ = strnlen( (char*)p_peek, i_read-1 ); \
p_str = malloc( __i_copy__+1 ); \
if( p_str ) \
{ \
memcpy( p_str, p_peek, __i_copy__ ); \
p_str[__i_copy__] = 0; \
} \
p_peek += __i_copy__ + 1; \
i_read -= __i_copy__ + 1; \
} \
else \
{ \
p_str = NULL; \
}
#define MP4_READBOX_ENTER( mp4_box_data_TYPE_t ) \
int64_t i_read = p_box->i_size; \
uint8_t *p_peek, *p_buff; \
int i_actually_read; \
if( !( p_peek = p_buff = malloc( i_read ) ) ) \
{ \
return( 0 ); \
} \
i_actually_read = stream_read( p_stream, p_peek, i_read ); \
if( i_actually_read < 0 || (int64_t)i_actually_read < i_read )\
{ \
free( p_buff ); \
return( 0 ); \
} \
p_peek += mp4_box_headersize( p_box ); \
i_read -= mp4_box_headersize( p_box ); \
if( !( p_box->data.p_data = calloc( 1, sizeof( mp4_box_data_TYPE_t ) ) ) ) \
{ \
free( p_buff ); \
return( 0 ); \
}
#define MP4_READBOX_ENTERFromBuffer( mp4_box_data_TYPE_t ) \
int64_t i_read = p_box->i_size; \
uint8_t *p_peek, *p_buff; \
int i_actually_read; \
if( !( p_peek = p_buff = malloc( i_read ) ) ) \
{ \
return( 0 ); \
} \
i_actually_read = buffer_read( p_stream, p_peek, i_read ); \
if( i_actually_read < 0 || (int64_t)i_actually_read < i_read )\
{ \
free( p_buff ); \
return( 0 ); \
} \
p_peek += mp4_box_headersize( p_box ); \
i_read -= mp4_box_headersize( p_box ); \
if( !( p_box->data.p_data = calloc( 1, sizeof( mp4_box_data_TYPE_t ) ) ) ) \
{ \
free( p_buff ); \
return( 0 ); \
}
#define MP4_READBOX_EXIT( i_code ) \
do \
{ \
free( p_buff ); \
if( i_read < 0 ) \
printf( "Not enough data" ); \
return( i_code ); \
} while (0)
/* Some assumptions:
* The input method HAS to be seekable
*/
/* This macro is used when we want to printf the box type
* APPLE annotation box is :
* either 0xA9 + 24-bit ASCII text string (and 0xA9 isn't printable)
* either 32-bit ASCII text string
*/
#define MP4_BOX_TYPE_ASCII() ( ((char*)&p_box->i_type)[0] != (char)0xA9 )
static void CreateUUID( uuid_t *p_uuid, uint32_t i_fourcc )
{
/* made by 0xXXXXXXXX-0011-0010-8000-00aa00389b71 where XXXXXXXX is the fourcc */
/* FIXME implement this */
(void)p_uuid;
(void)i_fourcc;
}
static int drms_init( void *_p_drms, uint32_t i_type,
uint8_t *p_info, uint32_t i_len )
{
return 1;
}
static void GetUUID( uuid_t *p_uuid, const uint8_t *p_buff )
{
memcpy( p_uuid, p_buff, 16 );
}
/* convert 16.16 fixed point to floating point */
static double conv_fx( int32_t fx ) {
double fp = fx;
fp /= 65536.0;
return fp;
}
/* some functions for mp4 encoding of variables */
#ifdef MP4_VERBOSE
static void MP4_ConvertDate2Str( char *psz, uint64_t i_date )
{
int i_day;
int i_hour;
int i_min;
int i_sec;
/* date begin at 1 jan 1904 */
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
/*****************************************************************************
* 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_buff = malloc(32);
const uint8_t *p_peek = p_buff;
if( ( ( i_read = stream_peek( p_stream, p_peek, 32 ) ) < 8 ) )
{
free(p_buff);
return 0;
}
p_box->i_pos = stream_tell( p_stream );
p_box->data.p_data = 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 )
{
/* 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( p_box->i_type == ATOM_uuid )
{
/* get extented type on 16 bytes */
GetUUID( &p_box->i_uuid, p_peek );
p_peek += 16; i_read -= 16;
}
else
{
CreateUUID( &p_box->i_uuid, p_box->i_type );
}
free(p_buff);
// #ifdef MP4_VERBOSE
// if( p_box->i_size )
// {
// if MP4_BOX_TYPE_ASCII()
// printf( "found Box: %4.4s size %"PRId64,
// (char*)&p_box->i_type, p_box->i_size );
// else
// printf( "found Box: c%3.3s size %"PRId64,
// (char*)&p_box->i_type+1, p_box->i_size );
// }
// #endif
return 1;
}
int MP4_ReadBoxCommonFromBuffer( stream_t *p_stream, mp4_box_t *p_box )
{
int i_read;
const uint8_t *p_buff = malloc(32);
const uint8_t *p_peek = p_buff;
if( ( ( i_read = buffer_peek( p_stream, p_peek, 32 ) ) < 8 ) )
{
free(p_buff);
return 0;
}
p_box->i_pos = buffer_tell( p_stream );
p_box->data.p_data = 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 )
{
/* 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( p_box->i_type == ATOM_uuid )
{
/* get extented type on 16 bytes */
GetUUID( &p_box->i_uuid, p_peek );
p_peek += 16; i_read -= 16;
}
else
{
CreateUUID( &p_box->i_uuid, p_box->i_type );
}
free(p_buff);
// #ifdef MP4_VERBOSE
// if( p_box->i_size )
// {
// if MP4_BOX_TYPE_ASCII()
// printf( "found Box: %4.4s size %"PRId64,
// (char*)&p_box->i_type, p_box->i_size );
// else
// printf( "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 )
{
const int64_t i_box_end = p_box->i_size + p_box->i_pos;
const int64_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 )
printf( "out of bound child" );
return 0; /* out of bound */
}
}
if (stream_seek( p_stream, p_box->i_size + p_box->i_pos, SEEK_SET ))
{
return 0;
}
return 1;
}
static int MP4_NextBoxFromBuffer( stream_t *p_stream, mp4_box_t *p_box )
{
mp4_box_t box;
if( !p_box )
{
MP4_ReadBoxCommonFromBuffer( p_stream, &box );
p_box = &box;
}
if( !p_box->i_size )
{
return 2; /* Box with infinite size */
}
if( p_box->p_father )
{
const int64_t i_box_end = p_box->i_size + p_box->i_pos;
const int64_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 )
printf( "out of bound child" );
return 0; /* out of bound */
}
}
if (buffer_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
*****************************************************************************/
static int MP4_ReadBoxContainerRaw( stream_t *p_stream, mp4_box_t *p_container )
{
mp4_box_t *p_box;
if( stream_tell( p_stream ) + 8 >
(int64_t)(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;
} while( MP4_NextBox( p_stream, p_box ) == 1 );
return 1;
}
static int MP4_ReadBoxContainerRawFromBuffer( stream_t *p_stream, mp4_box_t *p_container )
{
mp4_box_t *p_box;
if( buffer_tell( p_stream ) + 8 >
(int64_t)(p_container->i_pos + p_container->i_size) )
{
/* there is no box to load */
return 0;
}
do
{
if( ( p_box = MP4_ReadBoxFromBuffer( 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;
} while( MP4_NextBoxFromBuffer( p_stream, p_box ) == 1 );
return 1;
}
static int MP4_ReadBoxContainer( stream_t *p_stream, mp4_box_t *p_container )
{
if( 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 ), SEEK_SET );
return MP4_ReadBoxContainerRaw( p_stream, p_container );
}
static int MP4_ReadBoxContainerFromBuffer( stream_t *p_stream, mp4_box_t *p_container )
{
if( 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 */
buffer_seek( p_stream, mp4_box_headersize( p_container ), p_container->i_pos );
return MP4_ReadBoxContainerRawFromBuffer( 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_buff = malloc(44);
const uint8_t *p_peek = p_buff;
int i_read;
uint32_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 = MP4_FOURCC( p_peek[0], p_peek[1], p_peek[2], p_peek[3] );
if( i_fcc == ATOM_cmov || i_fcc == ATOM_mvhd )
{
printf( "detected moov hidden in a free box ..." );
p_box->i_type = ATOM_foov;
free(p_buff);
return MP4_ReadBoxContainer( p_stream, p_box );
}
}
free(p_buff);
}
/* Nothing to do */
// #ifdef MP4_VERBOSE
// if MP4_BOX_TYPE_ASCII()
// printf( "skip box: \"%4.4s\"", (char*)&p_box->i_type );
// else
// printf( "skip box: \"c%3.3s\"", (char*)&p_box->i_type+1 );
// #endif
return 1;
}
static int MP4_ReadBoxSkipFromBuffer( 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_buff = malloc(44);
const uint8_t *p_peek = p_buff;
int i_read;
uint32_t i_fcc;
i_read = buffer_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 = MP4_FOURCC( p_peek[0], p_peek[1], p_peek[2], p_peek[3] );
if( i_fcc == ATOM_cmov || i_fcc == ATOM_mvhd )
{
printf( "detected moov hidden in a free box ..." );
p_box->i_type = ATOM_foov;
free(p_buff);
return MP4_ReadBoxContainerFromBuffer( p_stream, p_box );
}
}
free(p_buff);
}
/* Nothing to do */
// #ifdef MP4_VERBOSE
// if MP4_BOX_TYPE_ASCII()
// printf( "skip box: \"%4.4s\"", (char*)&p_box->i_type );
// else
// printf( "skip box: \"c%3.3s\"", (char*)&p_box->i_type+1 );
// #endif
return 1;
}
# define likely(p) (!!(p))
# define unlikely(p) (!!(p))
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->major_brand );
MP4_GET4BYTES( p_box->data.p_ftyp->minor_version );
if( ( p_box->data.p_ftyp->compatible_brands_count = i_read / 4 ) )
{
unsigned int i = 0;
uint32_t *tab = p_box->data.p_ftyp->compatible_brands =
calloc( p_box->data.p_ftyp->compatible_brands_count, sizeof(uint32_t));
if( unlikely( tab == NULL ) )
MP4_READBOX_EXIT( 0 );
for( i = 0; i < p_box->data.p_ftyp->compatible_brands_count; i++ )
{
MP4_GETFOURCC( tab[i] );
}
}
else
{
p_box->data.p_ftyp->compatible_brands = NULL;
}
MP4_READBOX_EXIT( 1 );
}
static int MP4_ReadBox_ftypFromBuffer( stream_t *p_stream, mp4_box_t *p_box )
{
MP4_READBOX_ENTERFromBuffer( mp4_box_data_ftyp_t );
MP4_GETFOURCC( p_box->data.p_ftyp->major_brand );
MP4_GET4BYTES( p_box->data.p_ftyp->minor_version );
if( ( p_box->data.p_ftyp->compatible_brands_count = i_read / 4 ) )
{
unsigned int i = 0;
uint32_t *tab = p_box->data.p_ftyp->compatible_brands =
calloc( p_box->data.p_ftyp->compatible_brands_count, sizeof(uint32_t));
if( unlikely( tab == NULL ) )
MP4_READBOX_EXIT( 0 );
for( i = 0; i < p_box->data.p_ftyp->compatible_brands_count; i++ )
{
MP4_GETFOURCC( tab[i] );
}
}
else
{
p_box->data.p_ftyp->compatible_brands = NULL;
}
MP4_READBOX_EXIT( 1 );
}
static void MP4_FreeBox_ftyp( mp4_box_t *p_box )
{
FREENULL( p_box->data.p_ftyp->compatible_brands );
}
static int MP4_ReadBox_mmpu( stream_t *p_stream, mp4_box_t *p_box )
{
unsigned int mmpu_buf;
int i;
MP4_READBOX_ENTER( mp4_box_data_mmpu_t );
MP4_GETVERSIONFLAGS(p_box->data.p_mmpu);
MP4_GET1BYTE(mmpu_buf);
p_box->data.p_mmpu->is_complete=(mmpu_buf>>7)&0x01;
p_box->data.p_mmpu->reserved=mmpu_buf&0x7F;
MP4_GET4BYTES( p_box->data.p_mmpu->mpu_sequence_number );
MP4_GETFOURCC( p_box->data.p_mmpu->asset_id_scheme );
MP4_GET4BYTES( p_box->data.p_mmpu->asset_id_length );
p_box->data.p_mmpu->asset_id_value=(char *)malloc(p_box->data.p_mmpu->asset_id_length);
for (i=0;i<p_box->data.p_mmpu->asset_id_length;i++)
{
MP4_GET1BYTE( p_box->data.p_mmpu->asset_id_value[i] );
}
MP4_READBOX_EXIT( 1 );
}
static int MP4_ReadBox_mmpuFromBuffer( stream_t *p_stream, mp4_box_t *p_box )
{
unsigned int mmpu_buf;
int i;
MP4_READBOX_ENTERFromBuffer( mp4_box_data_mmpu_t );
MP4_GETVERSIONFLAGS(p_box->data.p_mmpu);
MP4_GET1BYTE(mmpu_buf);
p_box->data.p_mmpu->is_complete=(mmpu_buf>>7)&0x01;
p_box->data.p_mmpu->reserved=mmpu_buf&0x7F;
MP4_GET4BYTES( p_box->data.p_mmpu->mpu_sequence_number );
MP4_GETFOURCC( p_box->data.p_mmpu->asset_id_scheme );
MP4_GET4BYTES( p_box->data.p_mmpu->asset_id_length );
p_box->data.p_mmpu->asset_id_value=(char *)malloc(p_box->data.p_mmpu->asset_id_length);
for (i=0;i<p_box->data.p_mmpu->asset_id_length;i++)
{
MP4_GET1BYTE( p_box->data.p_mmpu->asset_id_value[i] );
}
MP4_READBOX_EXIT( 1 );
}
static int MP4_ReadBox_tfdt( stream_t *p_stream, mp4_box_t *p_box )
{
MP4_READBOX_ENTER( mp4_box_data_tfdt_t );
MP4_GETVERSIONFLAGS( p_box->data.p_tfdt );
if( p_box->data.p_tfdt->version )
{
MP4_GET8BYTES( p_box->data.p_tfdt->baseMediaDecodeTime );
}
else
{
MP4_GET4BYTES( p_box->data.p_tfdt->baseMediaDecodeTime );
}
MP4_READBOX_EXIT( 1 );
}
static int MP4_ReadBox_tfdtFromBuffer( stream_t *p_stream, mp4_box_t *p_box )
{
MP4_READBOX_ENTERFromBuffer( mp4_box_data_tfdt_t );
MP4_GETVERSIONFLAGS( p_box->data.p_tfdt );
if( p_box->data.p_tfdt->version )
{
MP4_GET8BYTES( p_box->data.p_tfdt->baseMediaDecodeTime );
}
else
{
MP4_GET4BYTES( p_box->data.p_tfdt->baseMediaDecodeTime );
}
MP4_READBOX_EXIT( 1 );
}
static void MP4_FreeBox_mmpu( mp4_box_t *p_box )
{
FREENULL( p_box->data.p_mmpu->asset_id_value );
}
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
unsigned int i = 0;
MP4_READBOX_ENTER( mp4_box_data_mvhd_t );
MP4_GETVERSIONFLAGS( p_box->data.p_mvhd );
if( p_box->data.p_mvhd->version )
{
MP4_GET8BYTES( p_box->data.p_mvhd->creation_time );
MP4_GET8BYTES( p_box->data.p_mvhd->modification_time );
MP4_GET4BYTES( p_box->data.p_mvhd->timescale );
MP4_GET8BYTES( p_box->data.p_mvhd->duration );
}
else
{
MP4_GET4BYTES( p_box->data.p_mvhd->creation_time );
MP4_GET4BYTES( p_box->data.p_mvhd->modification_time );
MP4_GET4BYTES( p_box->data.p_mvhd->timescale );
MP4_GET4BYTES( p_box->data.p_mvhd->duration );
}
MP4_GET4BYTES( p_box->data.p_mvhd->rate );
MP4_GET2BYTES( p_box->data.p_mvhd->volume );
MP4_GET2BYTES( p_box->data.p_mvhd->reserved1 );
for( i = 0; i < 2; i++ )
{
MP4_GET4BYTES( p_box->data.p_mvhd->reserved2[i] );
}
for( i = 0; i < 9; i++ )
{
MP4_GET4BYTES( p_box->data.p_mvhd->matrix[i] );
}
for( i = 0; i < 6; i++ )
{
MP4_GET4BYTES( p_box->data.p_mvhd->predefined[i] );
}
MP4_GET4BYTES( p_box->data.p_mvhd->next_track_id );
#ifdef MP4_VERBOSE
MP4_ConvertDate2Str( s_creation_time, p_box->data.p_mvhd->creation_time );
MP4_ConvertDate2Str( s_modification_time,
p_box->data.p_mvhd->modification_time );
if( p_box->data.p_mvhd->rate )
{
MP4_ConvertDate2Str( s_duration,
p_box->data.p_mvhd->duration / p_box->data.p_mvhd->rate );
}
else
{
s_duration[0] = 0;
}
printf( "read box: \"mvhd\" creation %s modification %s time scale %d duration %s rate %f volume %f next track id %d",
s_creation_time,
s_modification_time,
(uint32_t)p_box->data.p_mvhd->timescale,
s_duration,
(float)p_box->data.p_mvhd->rate / (1<<16 ),
(float)p_box->data.p_mvhd->volume / 256 ,
(uint32_t)p_box->data.p_mvhd->next_track_id );
#endif
MP4_READBOX_EXIT( 1 );
}
static int MP4_ReadBox_mvhdFromBuffer( 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
unsigned int i = 0;
MP4_READBOX_ENTERFromBuffer( mp4_box_data_mvhd_t );
MP4_GETVERSIONFLAGS( p_box->data.p_mvhd );
if( p_box->data.p_mvhd->version )
{
MP4_GET8BYTES( p_box->data.p_mvhd->creation_time );
MP4_GET8BYTES( p_box->data.p_mvhd->modification_time );
MP4_GET4BYTES( p_box->data.p_mvhd->timescale );
MP4_GET8BYTES( p_box->data.p_mvhd->duration );
}
else
{
MP4_GET4BYTES( p_box->data.p_mvhd->creation_time );
MP4_GET4BYTES( p_box->data.p_mvhd->modification_time );
MP4_GET4BYTES( p_box->data.p_mvhd->timescale );
MP4_GET4BYTES( p_box->data.p_mvhd->duration );
}
MP4_GET4BYTES( p_box->data.p_mvhd->rate );
MP4_GET2BYTES( p_box->data.p_mvhd->volume );
MP4_GET2BYTES( p_box->data.p_mvhd->reserved1 );
for( i = 0; i < 2; i++ )
{
MP4_GET4BYTES( p_box->data.p_mvhd->reserved2[i] );
}
for( i = 0; i < 9; i++ )
{
MP4_GET4BYTES( p_box->data.p_mvhd->matrix[i] );
}
for( i = 0; i < 6; i++ )
{
MP4_GET4BYTES( p_box->data.p_mvhd->predefined[i] );
}
MP4_GET4BYTES( p_box->data.p_mvhd->next_track_id );
#ifdef MP4_VERBOSE
MP4_ConvertDate2Str( s_creation_time, p_box->data.p_mvhd->creation_time );
MP4_ConvertDate2Str( s_modification_time,
p_box->data.p_mvhd->modification_time );
if( p_box->data.p_mvhd->rate )
{
MP4_ConvertDate2Str( s_duration,
p_box->data.p_mvhd->duration / p_box->data.p_mvhd->rate );
}
else
{
s_duration[0] = 0;
}
printf( "read box: \"mvhd\" creation %s modification %s time scale %d duration %s rate %f volume %f next track id %d",
s_creation_time,
s_modification_time,
(uint32_t)p_box->data.p_mvhd->timescale,
s_duration,
(float)p_box->data.p_mvhd->rate / (1<<16 ),
(float)p_box->data.p_mvhd->volume / 256 ,
(uint32_t)p_box->data.p_mvhd->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_GET4BYTES( p_box->data.p_mfhd->sequence_number );
#ifdef MP4_VERBOSE
printf( "read box: \"mfhd\" sequence number %d",
p_box->data.p_mfhd->sequence_number );
#endif
MP4_READBOX_EXIT( 1 );
}
static int MP4_ReadBox_mfhdFromBuffer( stream_t *p_stream, mp4_box_t *p_box )
{
MP4_READBOX_ENTERFromBuffer( mp4_box_data_mfhd_t );
MP4_GET4BYTES( p_box->data.p_mfhd->sequence_number );
#ifdef MP4_VERBOSE
printf( "read box: \"mfhd\" sequence number %d",
p_box->data.p_mfhd->sequence_number );
#endif
MP4_READBOX_EXIT( 1 );
}
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 );
MP4_GET4BYTES( p_box->data.p_tfhd->track_ID );
if( p_box->data.p_tfhd->version == 0 )
{
if( p_box->data.p_tfhd->flags & MP4_TFHD_BASE_DATA_OFFSET )
MP4_GET8BYTES( p_box->data.p_tfhd->base_data_offset );
if( p_box->data.p_tfhd->flags & MP4_TFHD_SAMPLE_DESC_INDEX )
MP4_GET4BYTES( p_box->data.p_tfhd->sample_description_index );
if( p_box->data.p_tfhd->flags & MP4_TFHD_DFLT_SAMPLE_DURATION )
MP4_GET4BYTES( p_box->data.p_tfhd->default_sample_duration );
if( p_box->data.p_tfhd->flags & MP4_TFHD_DFLT_SAMPLE_SIZE )
MP4_GET4BYTES( p_box->data.p_tfhd->default_sample_size );
if( p_box->data.p_tfhd->flags & MP4_TFHD_DFLT_SAMPLE_FLAGS )
MP4_GET4BYTES( p_box->data.p_tfhd->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->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->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->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->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->default_sample_flags);
printf( "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->track_ID,
psz_base, psz_desc, psz_dura, psz_size, psz_flag );
#endif
}
MP4_READBOX_EXIT( 1 );
}
static int MP4_ReadBox_tfhdFromBuffer( stream_t *p_stream, mp4_box_t *p_box )
{
MP4_READBOX_ENTERFromBuffer( mp4_box_data_tfhd_t );
MP4_GETVERSIONFLAGS( p_box->data.p_tfhd );
MP4_GET4BYTES( p_box->data.p_tfhd->track_ID );
if( p_box->data.p_tfhd->version == 0 )
{
if( p_box->data.p_tfhd->flags & MP4_TFHD_BASE_DATA_OFFSET )
MP4_GET8BYTES( p_box->data.p_tfhd->base_data_offset );
if( p_box->data.p_tfhd->flags & MP4_TFHD_SAMPLE_DESC_INDEX )
MP4_GET4BYTES( p_box->data.p_tfhd->sample_description_index );
if( p_box->data.p_tfhd->flags & MP4_TFHD_DFLT_SAMPLE_DURATION )
MP4_GET4BYTES( p_box->data.p_tfhd->default_sample_duration );
if( p_box->data.p_tfhd->flags & MP4_TFHD_DFLT_SAMPLE_SIZE )