FFmpeg
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#include "libavutil/avassert.h"
#include "libavutil/thread.h"
#include "avcodec.h"
#include "codec_internal.h"
#include "decode.h"
#include "mpeg_er.h"
#include "mpegutils.h"
#include "mpegvideo.h"
#include "mpegvideodec.h"
#include "h261.h"
Go to the source code of this file.
Data Structures | |
struct | H261DecContext |
Macros | |
#define | H261_MBA_VLC_BITS 8 |
#define | H261_MTYPE_VLC_BITS 6 |
#define | H261_MV_VLC_BITS 7 |
#define | H261_CBP_VLC_BITS 9 |
#define | TCOEFF_VLC_BITS 9 |
#define | MBA_STUFFING 33 |
#define | MBA_STARTCODE 34 |
Functions | |
static av_cold void | h261_decode_init_static (void) |
static av_cold int | h261_decode_init (AVCodecContext *avctx) |
static void | h261_init_dest (MpegEncContext *s) |
static int | h261_decode_gob_header (H261DecContext *h) |
Decode the group of blocks header or slice header. More... | |
static int | h261_decode_mb_skipped (H261DecContext *h, int mba1, int mba2) |
Decode skipped macroblocks. More... | |
static int | decode_mv_component (GetBitContext *gb, int v) |
static int | h261_decode_block (H261DecContext *h, int16_t *block, int n, int coded) |
Decode a macroblock. More... | |
static int | h261_decode_mb (H261DecContext *h) |
static int | h261_decode_picture_header (H261DecContext *h) |
Decode the H.261 picture header. More... | |
static int | h261_decode_gob (H261DecContext *h) |
static int | get_consumed_bytes (MpegEncContext *s, int buf_size) |
returns the number of bytes consumed for building the current frame More... | |
static int | h261_decode_frame (AVCodecContext *avctx, AVFrame *pict, int *got_frame, AVPacket *avpkt) |
Variables | |
static VLCElem | h261_mba_vlc [540] |
static VLCElem | h261_mtype_vlc [80] |
static VLCElem | h261_mv_vlc [144] |
static VLCElem | h261_cbp_vlc [512] |
const FFCodec | ff_h261_decoder |
H.261 decoder.
Definition in file h261dec.c.
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Definition at line 65 of file h261dec.c.
Referenced by h261_decode_init().
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inlinestatic |
Definition at line 107 of file h261dec.c.
Referenced by h261_decode_mb(), and h261_decode_mb_skipped().
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Decode the group of blocks header or slice header.
Definition at line 120 of file h261dec.c.
Referenced by h261_decode_frame().
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Decode skipped macroblocks.
Definition at line 174 of file h261dec.c.
Referenced by h261_decode_gob().
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Definition at line 213 of file h261dec.c.
Referenced by h261_decode_mb().
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Decode a macroblock.
Definition at line 237 of file h261dec.c.
Referenced by h261_decode_mb().
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Definition at line 336 of file h261dec.c.
Referenced by h261_decode_gob().
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Decode the H.261 picture header.
Definition at line 457 of file h261dec.c.
Referenced by h261_decode_frame().
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Definition at line 510 of file h261dec.c.
Referenced by h261_decode_frame().
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returns the number of bytes consumed for building the current frame
Definition at line 542 of file h261dec.c.
Referenced by h261_decode_frame().
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Definition at line 47 of file h261dec.c.
Referenced by h261_decode_init_static(), and h261_decode_mb().
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Definition at line 48 of file h261dec.c.
Referenced by h261_decode_init_static(), and h261_decode_mb().
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Definition at line 49 of file h261dec.c.
Referenced by decode_mv_component(), and h261_decode_init_static().
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Definition at line 50 of file h261dec.c.
Referenced by h261_decode_init_static(), and h261_decode_mb().
const FFCodec ff_h261_decoder |