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vlc-2-2
Commit 4605535b authored by Frédéric Yhuel's avatar Frédéric Yhuel Committed by Jean-Baptiste Kempf
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libmp4: move some stuff into the header file 

Signed-off-by: default avatarJean-Baptiste Kempf <jb@videolan.org>
parent 54e435ee
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Showing with 116 additions and 122 deletions
modules/demux/mp4/libmp4.c
View file @ 4605535b
......@@ -34,132 +34,10 @@
#include "libmp4.h"
#include <math.h>
/*****************************************************************************
* Here are defined some macro to make life simpler but before using it
* *look* at the code.
*
*****************************************************************************/
static inline size_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 );
}
#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)
#define MP4_GET1BYTE( dst ) MP4_GETX_PRIVATE( dst, *p_peek, 1 )
#define MP4_GET2BYTES( dst ) MP4_GETX_PRIVATE( dst, GetWBE(p_peek), 2 )
#define MP4_GET3BYTES( dst ) MP4_GETX_PRIVATE( dst, Get24bBE(p_peek), 3 )
#define MP4_GET4BYTES( dst ) MP4_GETX_PRIVATE( dst, GetDWBE(p_peek), 4 )
#define MP4_GET8BYTES( dst ) MP4_GETX_PRIVATE( dst, GetQWBE(p_peek), 8 )
#define MP4_GETFOURCC( dst ) MP4_GETX_PRIVATE( dst, \
VLC_FOURCC(p_peek[0],p_peek[1],p_peek[2],p_peek[3]), 4)
#define MP4_GETVERSIONFLAGS( p_void ) \
MP4_GET1BYTE( p_void->i_version ); \
MP4_GET3BYTES( p_void->i_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 )\
{ \
msg_Warn( p_stream, "MP4_READBOX_ENTER: I got %i bytes, "\
"but I requested %"PRId64"", 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 ) \
msg_Warn( p_stream, "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 inline uint32_t Get24bBE( const uint8_t *p )
{
return( ( p[0] <<16 ) + ( p[1] <<8 ) + p[2] );
}
static inline void GetUUID( UUID_t *p_uuid, const uint8_t *p_buff )
{
memcpy( p_uuid, p_buff, 16 );
}
static inline int CmpUUID( const UUID_t *u1, const UUID_t *u2 )
{
return memcmp( u1, u2, 16 );
}
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;
}
const UUID_t TfrfBoxUUID = { .b =
{ 0xd4, 0x80, 0x7e, 0xf2, 0xca, 0x39, 0x46, 0x95,
0x8e, 0x54, 0x26, 0xcb, 0x9e, 0x46, 0xa7, 0x9f } };
const UUID_t TfxdBoxUUID = { .b =
{ 0x6d, 0x1d, 0x9b, 0x05, 0x42, 0xd5, 0x44, 0xe6,
0x80, 0xe2, 0x14, 0x1b, 0xaf, 0xf7, 0x57, 0xb2 } };
/* convert 16.16 fixed point to floating point */
static double conv_fx( int32_t fx ) {
double fp = fx;
......
modules/demux/mp4/libmp4.h
View file @ 4605535b
......@@ -1213,6 +1213,122 @@ typedef struct MP4_Box_s
} MP4_Box_t;
static inline size_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 );
}
#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)
#define MP4_GET1BYTE( dst ) MP4_GETX_PRIVATE( dst, *p_peek, 1 )
#define MP4_GET2BYTES( dst ) MP4_GETX_PRIVATE( dst, GetWBE(p_peek), 2 )
#define MP4_GET3BYTES( dst ) MP4_GETX_PRIVATE( dst, Get24bBE(p_peek), 3 )
#define MP4_GET4BYTES( dst ) MP4_GETX_PRIVATE( dst, GetDWBE(p_peek), 4 )
#define MP4_GET8BYTES( dst ) MP4_GETX_PRIVATE( dst, GetQWBE(p_peek), 8 )
#define MP4_GETFOURCC( dst ) MP4_GETX_PRIVATE( dst, \
VLC_FOURCC(p_peek[0],p_peek[1],p_peek[2],p_peek[3]), 4)
#define MP4_GETVERSIONFLAGS( p_void ) \
MP4_GET1BYTE( p_void->i_version ); \
MP4_GET3BYTES( p_void->i_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 )\
{ \
msg_Warn( p_stream, "MP4_READBOX_ENTER: I got %i bytes, "\
"but I requested %"PRId64"", 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 ) \
msg_Warn( p_stream, "Not enough data" ); \
return( i_code ); \
} while (0)
/* 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 inline uint32_t Get24bBE( const uint8_t *p )
{
return( ( p[0] <<16 ) + ( p[1] <<8 ) + p[2] );
}
static inline void GetUUID( UUID_t *p_uuid, const uint8_t *p_buff )
{
memcpy( p_uuid, p_buff, 16 );
}
static inline int CmpUUID( const UUID_t *u1, const UUID_t *u2 )
{
return memcmp( u1, u2, 16 );
}
static inline 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 const UUID_t TfrfBoxUUID = {
{ 0xd4, 0x80, 0x7e, 0xf2, 0xca, 0x39, 0x46, 0x95,
0x8e, 0x54, 0x26, 0xcb, 0x9e, 0x46, 0xa7, 0x9f } };
static const UUID_t TfxdBoxUUID = {
{ 0x6d, 0x1d, 0x9b, 0x05, 0x42, 0xd5, 0x44, 0xe6,
0x80, 0xe2, 0x14, 0x1b, 0xaf, 0xf7, 0x57, 0xb2 } };
/*****************************************************************************
......
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