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Commit 2171d2e9 authored by Laurent Aimar's avatar Laurent Aimar
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* all: clean up.

parent e40e6065
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modules/demux/mp4/libmp4.c
View file @ 2171d2e9
......@@ -2,7 +2,7 @@
* libmp4.c : LibMP4 library for mp4 module for vlc
*****************************************************************************
* Copyright (C) 2001 VideoLAN
* $Id: libmp4.c,v 1.32 2003/09/07 22:48:29 fenrir Exp $
* $Id: libmp4.c,v 1.33 2003/09/08 00:35:16 fenrir Exp $
* Authors: Laurent Aimar <fenrir@via.ecp.fr>
*
* This program is free software; you can redistribute it and/or modify
......@@ -20,10 +20,6 @@
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
*****************************************************************************/
#include <stdlib.h> /* malloc(), free() */
#include <stdarg.h>
#include <string.h> /* strdup() */
#include <errno.h>
#include <sys/types.h>
#include <vlc/vlc.h>
#include <vlc/input.h>
......@@ -38,8 +34,6 @@
* Here are defined some macro to make life simpler but before using it
* *look* at the code.
*
* XXX: All macro are written in capital letters
*
*****************************************************************************/
#define MP4_BOX_HEADERSIZE( p_box ) \
( 8 + ( p_box->i_shortsize == 1 ? 8 : 0 ) \
......@@ -122,16 +116,14 @@
*/
static uint32_t Get24bBE( uint8_t *p_buff )
static uint32_t Get24bBE( uint8_t *p )
{
return( ( p_buff[0] <<16 ) + ( p_buff[1] <<8 ) + p_buff[2] );
return( ( p[0] <<16 ) + ( p[1] <<8 ) + p[2] );
}
static void GetUUID( UUID_t *p_uuid, uint8_t *p_buff )
{
memcpy( p_uuid,
p_buff,
16 );
memcpy( p_uuid, p_buff, 16 );
}
static void CreateUUID( UUID_t *p_uuid, uint32_t i_fourcc )
......@@ -143,39 +135,28 @@ static void CreateUUID( UUID_t *p_uuid, uint32_t i_fourcc )
/* some functions for mp4 encoding of variables */
void MP4_ConvertDate2Str( char *psz, uint64_t i_date )
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 += ((1904ULL * 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;
/* FIXME do it correctly, date begin at 1 jan 1904 */
sprintf( psz, "%dd-%2.2dh:%2.2dm:%2.2ds",
i_day, i_hour, i_min, i_sec );
}
#if 0
static void DataDump( uint8_t *p_data, int i_data )
{
int i;
fprintf( stderr, "\nDumping %d bytes\n", i_data );
for( i = 0; i < i_data; i++ )
{
int c;
c = p_data[i];
if( c < 32 || c > 127 ) c = '.';
fprintf( stderr, "%c", c );
if( i % 60 == 59 ) fprintf( stderr, "\n" );
}
fprintf( stderr, "\n" );
}
#endif
/*****************************************************************************
* Some prototypes.
*****************************************************************************/
static MP4_Box_t *MP4_ReadBox( MP4_Stream_t *p_stream, MP4_Box_t *p_father );
/*****************************************************************************
* Some basic functions to manipulate stream more easily in vlc
......@@ -187,7 +168,7 @@ static void DataDump( uint8_t *p_data, int i_data )
* MP4_ReadData read data from the file in a buffer
*
*****************************************************************************/
off_t MP4_TellAbsolute( input_thread_t *p_input )
static off_t MP4_TellAbsolute( input_thread_t *p_input )
{
off_t i_pos;
......@@ -200,8 +181,7 @@ off_t MP4_TellAbsolute( input_thread_t *p_input )
return( i_pos );
}
int MP4_SeekAbsolute( input_thread_t *p_input,
off_t i_pos)
static int MP4_SeekAbsolute( input_thread_t *p_input, off_t i_pos)
{
off_t i_filepos;
......@@ -267,7 +247,7 @@ int MP4_SeekAbsolute( input_thread_t *p_input,
}
/* return 1 if success, 0 if fail */
int MP4_ReadData( input_thread_t *p_input, uint8_t *p_buff, int i_size )
static int MP4_ReadData( input_thread_t *p_input, uint8_t *p_buff, int i_size )
{
data_packet_t *p_data;
......@@ -462,7 +442,7 @@ int MP4_SeekStream( MP4_Stream_t *p_stream, off_t i_pos)
*
* RETURN : 0 if it fail, 1 otherwise
*****************************************************************************/
int MP4_ReadBoxCommon( MP4_Stream_t *p_stream, MP4_Box_t *p_box )
static int MP4_ReadBoxCommon( MP4_Stream_t *p_stream, MP4_Box_t *p_box )
{
int i_read;
uint8_t *p_peek;
......@@ -523,7 +503,7 @@ int MP4_ReadBoxCommon( MP4_Stream_t *p_stream, MP4_Box_t *p_box )
*****************************************************************************
* if p_box == NULL, go to the next box in witch we are( at the begining ).
*****************************************************************************/
int MP4_NextBox( MP4_Stream_t *p_stream, MP4_Box_t *p_box )
static int MP4_NextBox( MP4_Stream_t *p_stream, MP4_Box_t *p_box )
{
MP4_Box_t box;
......@@ -549,16 +529,6 @@ int MP4_NextBox( MP4_Stream_t *p_stream, MP4_Box_t *p_box )
}
return( MP4_SeekStream( p_stream, p_box->i_size + p_box->i_pos ) ? 0 : 1 );
}
/*****************************************************************************
* MP4_MP4_GotoBox : Go to this particular box
*****************************************************************************
* RETURN : 0 if it fail, 1 otherwise
*****************************************************************************/
int MP4_GotoBox( MP4_Stream_t *p_stream, MP4_Box_t *p_box )
{
return( MP4_SeekStream( p_stream, p_box->i_pos ) ? 0 : 1 );
}
/*****************************************************************************
* For all known box a loader is given,
......@@ -579,29 +549,21 @@ static int MP4_ReadBoxContainerRaw( MP4_Stream_t *p_stream, MP4_Box_t *p_contain
do
{
p_box = malloc( sizeof( MP4_Box_t ) );
if( MP4_ReadBox( p_stream, p_box , p_container ) )
if( ( p_box = MP4_ReadBox( p_stream, p_container ) ) == NULL )
{
/* 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;
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
{
/* free memory */
free( p_box );
break;
p_container->p_last->p_next = p_box;
}
}while( MP4_NextBox( p_stream, p_box ) == 1 );
p_container->p_last = p_box;
} while( MP4_NextBox( p_stream, p_box ) == 1 );
return( 1 );
}
......@@ -1804,7 +1766,6 @@ static void MP4_FreeBox_cmvd( MP4_Box_t *p_box )
static int MP4_ReadBox_cmov( MP4_Stream_t *p_stream, MP4_Box_t *p_box )
{
MP4_Stream_t *p_stream_memory;
MP4_Box_t *p_umov;
MP4_Box_t *p_dcom;
MP4_Box_t *p_cmvd;
......@@ -1834,9 +1795,9 @@ static int MP4_ReadBox_cmov( MP4_Stream_t *p_stream, MP4_Box_t *p_box )
return( 0 );
}
if( !( p_dcom = MP4_FindBox( p_box, FOURCC_dcom ) )||
!( p_cmvd = MP4_FindBox( p_box, FOURCC_cmvd ) )||
!( p_cmvd->data.p_cmvd->p_data ) )
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->p_input, "Read Box: \"cmov\" incomplete" );
return( 1 );
......@@ -1913,27 +1874,21 @@ static int MP4_ReadBox_cmov( MP4_Stream_t *p_stream, MP4_Box_t *p_box )
msg_Dbg( p_stream->p_input,
"Read Box: \"cmov\" box succesfully uncompressed" );
//DataDump( p_data, p_cmvd->data.p_cmvd->i_uncompressed_size );
/* now create a memory stream */
p_stream_memory = MP4_MemoryStream( p_stream->p_input,
p_cmvd->data.p_cmvd->i_uncompressed_size,
p_cmvd->data.p_cmvd->p_data );
//DataDump( p_stream_memory->p_buffer, p_stream_memory->i_stop );
/* and read uncompressd moov */
p_umov = malloc( sizeof( MP4_Box_t ) );
i_result = MP4_ReadBox( p_stream_memory, p_umov, NULL );
p_box->data.p_cmov->p_moov = MP4_ReadBox( p_stream_memory, NULL );
p_box->data.p_cmov->p_moov = p_umov;
free( p_stream_memory );
#ifdef MP4_VERBOSE
msg_Dbg( p_stream->p_input,
"Read Box: \"cmov\" compressed movie header completed" );
#endif
return( i_result );
return( p_box->data.p_cmov->p_moov ? 1 : 0 );
#endif /* HAVE_ZLIB_H */
}
......@@ -2171,20 +2126,22 @@ static struct
* MP4_ReadBox : parse the actual box and the children
* XXX : Do not go to the next box
*****************************************************************************/
int MP4_ReadBox( MP4_Stream_t *p_stream, MP4_Box_t *p_box, MP4_Box_t *p_father )
static MP4_Box_t *MP4_ReadBox( MP4_Stream_t *p_stream, MP4_Box_t *p_father )
{
int i_result;
MP4_Box_t *p_box = malloc( sizeof( MP4_Box_t ) );
unsigned int i_index;
if( !MP4_ReadBoxCommon( p_stream, p_box ) )
{
msg_Warn( p_stream->p_input, "Cannot read one box" );
return( 0 );
free( p_box );
return NULL;
}
if( !p_box->i_size )
{
msg_Dbg( p_stream->p_input, "Found an empty box (null size)" );
return( 0 );
free( p_box );
return NULL;
}
p_box->p_father = p_father;
......@@ -2202,124 +2159,16 @@ int MP4_ReadBox( MP4_Stream_t *p_stream, MP4_Box_t *p_box, MP4_Box_t *p_father )
msg_Warn( p_stream->p_input,
"Unknown box type %4.4s (uncompletetly loaded)",
(char*)&p_box->i_type );
return( 1 );
}
else
else if( !(MP4_Box_Function[i_index].MP4_ReadBox_function)( p_stream, p_box ) )
{
i_result =
(MP4_Box_Function[i_index].MP4_ReadBox_function)( p_stream, p_box );
free( p_box );
return NULL;
}
return( i_result );
return p_box;
}
#if 0
/*****************************************************************************
* MP4_CountBox: given a box, count how many child have the requested type
* FIXME : support GUUID
*****************************************************************************/
int MP4_CountBox( MP4_Box_t *p_box, uint32_t i_type )
{
unsigned int i_count;
MP4_Box_t *p_child;
if( !p_box )
{
return( 0 );
}
i_count = 0;
p_child = p_box->p_first;
while( p_child )
{
if( p_child->i_type == i_type )
{
i_count++;
}
p_child = p_child->p_next;
}
return( i_count );
}
#endif
/*****************************************************************************
* MP4_FindBox: find first box with i_type child of p_box
* return NULL if not found
*****************************************************************************/
MP4_Box_t *MP4_FindBox( MP4_Box_t *p_box, uint32_t i_type )
{
MP4_Box_t *p_child;
if( !p_box )
{
return( NULL );
}
p_child = p_box->p_first;
while( p_child )
{
if( p_child->i_type == i_type )
{
return( p_child );
}
p_child = p_child->p_next;
}
return( NULL );
}
#if 0
/*****************************************************************************
* MP4_FindNextBox: find next box with thesame type and at the same level
* than p_box
*****************************************************************************/
MP4_Box_t *MP4_FindNextBox( MP4_Box_t *p_box )
{
MP4_Box_t *p_next;
if( !p_box )
{
return( NULL );
}
p_next = p_box->p_next;
while( p_next )
{
if( p_next->i_type == p_box->i_type )
{
return( p_next );
}
p_next = p_next->p_next;
}
return( NULL );
}
/*****************************************************************************
* MP4_FindNbBox: find the box i_number
*****************************************************************************/
MP4_Box_t *MP4_FindNbBox( MP4_Box_t *p_box, uint32_t i_number )
{
MP4_Box_t *p_child = p_box->p_first;
if( !p_child )
{
return( NULL );
}
while( i_number )
{
if( !( p_child = p_child->p_next ) )
{
return( NULL );
}
i_number--;
}
return( p_child );
}
#endif
/*****************************************************************************
* MP4_FreeBox : free memory after read with MP4_ReadBox and all
* the children
......@@ -2327,21 +2176,19 @@ MP4_Box_t *MP4_FindNbBox( MP4_Box_t *p_box, uint32_t i_number )
void MP4_BoxFree( input_thread_t *p_input, MP4_Box_t *p_box )
{
unsigned int i_index;
MP4_Box_t *p_child;
MP4_Box_t *p_next;
MP4_Box_t *p_child;
if( !p_box )
{
return; /* hehe */
}
p_child = p_box->p_first;
while( p_child )
for( p_child = p_box->p_first; p_child != NULL; )
{
MP4_Box_t *p_next;
p_next = p_child->p_next;
MP4_BoxFree( p_input, p_child );
/* MP4_FreeBoxChildren have free all data expect p_child itself */
free( p_child );
p_child = p_next;
}
......@@ -2369,12 +2216,9 @@ void MP4_BoxFree( input_thread_t *p_input, MP4_Box_t *p_box )
}
free( p_box->data.p_data );
p_box->data.p_data = NULL;
}
p_box->p_first = NULL;
p_box->p_last = NULL;
free( p_box );
}
/*****************************************************************************
......@@ -2383,12 +2227,13 @@ void MP4_BoxFree( input_thread_t *p_input, MP4_Box_t *p_box )
* 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
*****************************************************************************/
int MP4_BoxGetRoot( input_thread_t *p_input, MP4_Box_t *p_root )
MP4_Box_t *MP4_BoxGetRoot( input_thread_t *p_input )
{
MP4_Box_t *p_root;
MP4_Stream_t *p_stream;
int i_result;
MP4_SeekAbsolute( p_input, 0 ); /* Go to the begining */
p_root = malloc( sizeof( MP4_Box_t ) );
p_root->i_pos = 0;
p_root->i_type = VLC_FOURCC( 'r', 'o', 'o', 't' );
p_root->i_shortsize = 1;
......@@ -2415,10 +2260,10 @@ int MP4_BoxGetRoot( input_thread_t *p_input, MP4_Box_t *p_root )
/* check if there is a cmov, if so replace
compressed moov by uncompressed one */
if( ( ( p_moov = MP4_FindBox( p_root, FOURCC_moov ) )&&
( p_cmov = MP4_FindBox( p_moov, FOURCC_cmov ) ) ) ||
( ( p_moov = MP4_FindBox( p_root, FOURCC_foov ) )&&
( p_cmov = MP4_FindBox( p_moov, FOURCC_cmov ) ) ) )
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 = FOURCC_skip;
......@@ -2435,7 +2280,8 @@ int MP4_BoxGetRoot( input_thread_t *p_input, MP4_Box_t *p_root )
p_root->p_first = p_moov;
}
}
return( i_result );
return p_root;
}
......
modules/demux/mp4/libmp4.h
View file @ 2171d2e9
......@@ -2,14 +2,14 @@
* libmp4.h : LibMP4 library for mp4 module for vlc
*****************************************************************************
* Copyright (C) 2001 VideoLAN
* $Id: libmp4.h,v 1.15 2003/08/17 20:45:50 fenrir Exp $
* $Id: libmp4.h,v 1.16 2003/09/08 00:35:16 fenrir Exp $
* Authors: Laurent Aimar <fenrir@via.ecp.fr>
*
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
......@@ -28,7 +28,7 @@
#define FOURCC_cmov VLC_FOURCC( 'c', 'm', 'o', 'v' )
#define FOURCC_dcom VLC_FOURCC( 'd', 'c', 'o', 'm' )
#define FOURCC_cmvd VLC_FOURCC( 'c', 'm', 'v', 'd' )
#define FOURCC_moof VLC_FOURCC( 'm', 'o', 'o', 'f' )
#define FOURCC_mdat VLC_FOURCC( 'm', 'd', 'a', 't' )
#define FOURCC_skip VLC_FOURCC( 's', 'k', 'i', 'p' )
......@@ -163,18 +163,18 @@ typedef struct MP4_Stream_s
int b_memory; /* do we uses a memory buffer */
input_thread_t *p_input;
off_t i_start; /* in the buffer position for memory stream */
off_t i_stop;
uint8_t *p_buffer;
} MP4_Stream_t;
struct MP4_Box_s;
/* uuid Universal Unique IDentifiers */
typedef struct UUID_s
typedef struct UUID_s
{
uint8_t b[16];
} UUID_t;
......@@ -195,7 +195,7 @@ typedef struct MP4_Box_data_mvhd_s
{
uint8_t i_version;
uint32_t i_flags;
uint64_t i_creation_time;
uint64_t i_modification_time;
uint32_t i_timescale;
......@@ -218,30 +218,30 @@ typedef struct MP4_Box_data_tkhd_s
{
uint8_t i_version;
uint32_t i_flags;
uint64_t i_creation_time;
uint64_t i_modification_time;
uint32_t i_track_ID;
uint32_t i_reserved;
uint64_t i_duration;
uint32_t i_reserved2[2];
int16_t i_layer;
int16_t i_predefined;
int16_t i_volume;
uint16_t i_reserved3;
int32_t i_matrix[9];
int32_t i_width;
int32_t i_height;
} MP4_Box_data_tkhd_t;
typedef struct MP4_Box_data_mdhd_s
{
uint8_t i_version;
uint32_t i_flags;
uint64_t i_creation_time;
uint64_t i_modification_time;
uint32_t i_timescale;
......@@ -249,7 +249,7 @@ typedef struct MP4_Box_data_mdhd_s
/* one bit for pad */
/* unsigned int(5)[3] language difference with 0x60*/
unsigned char i_language[3];
unsigned char i_language[3];
uint16_t i_predefined;
} MP4_Box_data_mdhd_t;
......@@ -258,12 +258,12 @@ typedef struct MP4_Box_data_hdlr_s
{
uint8_t i_version;
uint32_t i_flags;
uint32_t i_predefined;
uint32_t i_handler_type; /* "vide" "soun" "hint" "odsm"
"crsm" "sdsm" "m7sm" "ocsm"
uint32_t i_handler_type; /* "vide" "soun" "hint" "odsm"
"crsm" "sdsm" "m7sm" "ocsm"
"ipsm" "mjsm" */
unsigned char *psz_name; /* in UTF-8 */
} MP4_Box_data_hdlr_t;
......@@ -272,9 +272,9 @@ typedef struct MP4_Box_data_vmhd_s
{
uint8_t i_version;
uint32_t i_flags;
int16_t i_graphics_mode;
int16_t i_opcolor[3];
int16_t i_opcolor[3];
} MP4_Box_data_vmhd_t;
......@@ -282,7 +282,7 @@ typedef struct MP4_Box_data_smhd_s
{
uint8_t i_version;
uint32_t i_flags;
int16_t i_balance;
int16_t i_reserved;
......@@ -292,7 +292,7 @@ typedef struct MP4_Box_data_hmhd_s
{
uint8_t i_version;
uint32_t i_flags;
uint16_t i_max_PDU_size;
uint16_t i_avg_PDU_size;
uint32_t i_max_bitrate;
......@@ -305,9 +305,9 @@ typedef struct MP4_Box_data_url_s
{
uint8_t i_version;
uint32_t i_flags;
unsigned char *psz_location;