FFmpeg
|
#include "libavutil/internal.h"
#include "libavutil/opt.h"
#include "error_resilience.h"
#include "idctdsp.h"
#include "internal.h"
#include "mpegutils.h"
#include "mpegvideo.h"
#include "mpegvideodata.h"
#include "mpeg4video.h"
#include "h263.h"
#include "profiles.h"
#include "thread.h"
#include "xvididct.h"
Go to the source code of this file.
Macros | |
#define | UNCHECKED_BITSTREAM_READER 1 |
#define | SPRITE_TRAJ_VLC_BITS 6 |
#define | DC_VLC_BITS 9 |
#define | MB_TYPE_B_VLC_BITS 4 |
#define | SET_QPEL_FUNC(postfix1, postfix2) |
Variables | |
static VLC | dc_lum |
static VLC | dc_chrom |
static VLC | sprite_trajectory |
static VLC | mb_type_b_vlc |
static const int | mb_type_b_map [4] |
static const AVOption | mpeg4_options [] |
static const AVClass | mpeg4_class |
AVCodec | ff_mpeg4_decoder |
#define UNCHECKED_BITSTREAM_READER 1 |
Definition at line 23 of file mpeg4videodec.c.
#define SPRITE_TRAJ_VLC_BITS 6 |
Definition at line 43 of file mpeg4videodec.c.
Referenced by ff_mpeg4videodec_static_init(), and mpeg4_decode_sprite_trajectory().
#define DC_VLC_BITS 9 |
Definition at line 44 of file mpeg4videodec.c.
Referenced by ff_mpeg4videodec_static_init(), and mpeg4_decode_dc().
#define MB_TYPE_B_VLC_BITS 4 |
Definition at line 45 of file mpeg4videodec.c.
Referenced by ff_mpeg4videodec_static_init(), and mpeg4_decode_mb().
#define SET_QPEL_FUNC | ( | postfix1, | |
postfix2 | |||
) |
Referenced by ff_mpeg4_workaround_bugs().
void ff_mpeg4_pred_ac | ( | MpegEncContext * | s, |
int16_t * | block, | ||
int | n, | ||
int | dir | ||
) |
Predict the ac.
n | block index (0-3 are luma, 4-5 are chroma) |
dir | the ac prediction direction |
Definition at line 63 of file mpeg4videodec.c.
Referenced by ff_msmpeg4_decode_block(), and mpeg4_decode_block().
|
inlinestatic |
check if the next stuff is a resync marker or the end.
Definition at line 118 of file mpeg4videodec.c.
Referenced by mpeg4_decode_mb(), and mpeg4_decode_partitioned_mb().
|
static |
Definition at line 168 of file mpeg4videodec.c.
Referenced by ff_mpeg4_decode_video_packet_header().
|
static |
Definition at line 383 of file mpeg4videodec.c.
Referenced by ff_mpeg4_decode_video_packet_header().
int ff_mpeg4_decode_video_packet_header | ( | Mpeg4DecContext * | ctx | ) |
Decode the next video packet.
Definition at line 398 of file mpeg4videodec.c.
Referenced by ff_h263_resync().
|
inlinestatic |
Get the average motion vector for a GMC MB.
n | either 0 for the x component or 1 for y |
Definition at line 492 of file mpeg4videodec.c.
Referenced by mpeg4_decode_mb(), and mpeg4_decode_partition_a().
|
inlinestatic |
Decode the dc value.
n | block index (0-3 are luma, 4-5 are chroma) |
dir_ptr | the prediction direction will be stored here |
Definition at line 545 of file mpeg4videodec.c.
Referenced by mpeg4_decode_block(), mpeg4_decode_partition_a(), and mpeg4_decode_partition_b().
|
static |
Decode first partition.
Definition at line 592 of file mpeg4videodec.c.
Referenced by ff_mpeg4_decode_partitions().
|
static |
decode second partition.
Definition at line 786 of file mpeg4videodec.c.
Referenced by ff_mpeg4_decode_partitions().
int ff_mpeg4_decode_partitions | ( | Mpeg4DecContext * | ctx | ) |
Decode the first and second partition.
Definition at line 879 of file mpeg4videodec.c.
Referenced by decode_slice().
|
inlinestatic |
Decode a block.
Definition at line 942 of file mpeg4videodec.c.
Referenced by mpeg4_decode_mb(), and mpeg4_decode_partitioned_mb().
|
static |
decode partition C of one MB.
Definition at line 1213 of file mpeg4videodec.c.
Referenced by decode_vop_header().
|
static |
Definition at line 1298 of file mpeg4videodec.c.
Referenced by decode_init(), and decode_vop_header().
|
static |
Definition at line 1677 of file mpeg4videodec.c.
Referenced by ff_mpeg4_decode_picture_header().
|
static |
Definition at line 1699 of file mpeg4videodec.c.
Referenced by ff_mpeg4_decode_picture_header().
|
static |
Definition at line 1713 of file mpeg4videodec.c.
Referenced by ff_mpeg4_decode_picture_header().
|
static |
Decode the user data stuff in the header.
Also initializes divx/xvid/lavc_version/build.
Definition at line 2072 of file mpeg4videodec.c.
Referenced by ff_mpeg4_decode_picture_header().
int ff_mpeg4_workaround_bugs | ( | AVCodecContext * | avctx | ) |
Definition at line 2122 of file mpeg4videodec.c.
Referenced by ff_h263_decode_frame().
|
static |
Definition at line 2233 of file mpeg4videodec.c.
Referenced by ff_mpeg4_decode_picture_header().
int ff_mpeg4_decode_picture_header | ( | Mpeg4DecContext * | ctx, |
GetBitContext * | gb | ||
) |
Decode mpeg4 headers.
Definition at line 2508 of file mpeg4videodec.c.
Referenced by ff_h263_decode_frame(), and mpeg4_decode_header().
Definition at line 2625 of file mpeg4videodec.c.
Referenced by decode_init(), and mpeg4video_parse_init().
int ff_mpeg4_frame_end | ( | AVCodecContext * | avctx, |
const uint8_t * | buf, | ||
int | buf_size | ||
) |
Definition at line 2651 of file mpeg4videodec.c.
Referenced by ff_h263_decode_frame().
|
static |
Definition at line 2722 of file mpeg4videodec.c.
|
static |
Definition at line 47 of file mpeg4videodec.c.
|
static |
Definition at line 47 of file mpeg4videodec.c.
|
static |
Definition at line 48 of file mpeg4videodec.c.
|
static |
Definition at line 49 of file mpeg4videodec.c.
|
static |
|
static |
Definition at line 2749 of file mpeg4videodec.c.
|
static |
Definition at line 2755 of file mpeg4videodec.c.
AVCodec ff_mpeg4_decoder |
Definition at line 2762 of file mpeg4videodec.c.