libavcodec/h263dec.c File Reference

H.263 decoder. More...

#include "libavutil/cpu.h"
#include "internal.h"
#include "avcodec.h"
#include "dsputil.h"
#include "mpegvideo.h"
#include "h263.h"
#include "h263_parser.h"
#include "mpeg4video_parser.h"
#include "msmpeg4.h"
#include "vdpau_internal.h"
#include "thread.h"
#include "flv.h"
#include "mpeg4video.h"

Go to the source code of this file.

Defines

#define UNCHECKED_BITSTREAM_READER   1
#define SET_QPEL_FUNC(postfix1, postfix2)

Functions

av_cold int ff_h263_decode_init (AVCodecContext *avctx)
av_cold int ff_h263_decode_end (AVCodecContext *avctx)
static int get_consumed_bytes (MpegEncContext *s, int buf_size)
 Return the number of bytes consumed for building the current frame.
static int decode_slice (MpegEncContext *s)
int ff_h263_decode_frame (AVCodecContext *avctx, void *data, int *data_size, AVPacket *avpkt)

Variables

AVCodec ff_h263_decoder
AVCodec ff_h263p_decoder


Detailed Description

H.263 decoder.

Definition in file h263dec.c.


Define Documentation

#define SET_QPEL_FUNC ( postfix1,
postfix2   ) 

Value:

s->dsp.put_ ## postfix1 = ff_put_ ## postfix2;\
    s->dsp.put_no_rnd_ ## postfix1 = ff_put_no_rnd_ ## postfix2;\
    s->dsp.avg_ ## postfix1 = ff_avg_ ## postfix2;

Referenced by ff_h263_decode_frame().

#define UNCHECKED_BITSTREAM_READER   1

Definition at line 28 of file h263dec.c.


Function Documentation

static int decode_slice ( MpegEncContext s  )  [static]

Definition at line 158 of file h263dec.c.

av_cold int ff_h263_decode_end ( AVCodecContext avctx  ) 

Definition at line 129 of file h263dec.c.

Referenced by wmv2_decode_end().

int ff_h263_decode_frame ( AVCodecContext avctx,
void *  data,
int data_size,
AVPacket avpkt 
)

Definition at line 348 of file h263dec.c.

av_cold int ff_h263_decode_init ( AVCodecContext avctx  ) 

Definition at line 47 of file h263dec.c.

Referenced by decode_init(), and ff_msmpeg4_decode_init().

static int get_consumed_bytes ( MpegEncContext s,
int  buf_size 
) [static]

Return the number of bytes consumed for building the current frame.

Definition at line 140 of file h263dec.c.


Variable Documentation

Initial value:

 {
    .name           = "h263",
    .type           = AVMEDIA_TYPE_VIDEO,
    .id             = AV_CODEC_ID_H263,
    .priv_data_size = sizeof(MpegEncContext),
    .init           = ff_h263_decode_init,
    .close          = ff_h263_decode_end,
    .decode         = ff_h263_decode_frame,
    .capabilities   = CODEC_CAP_DRAW_HORIZ_BAND | CODEC_CAP_DR1 |
                      CODEC_CAP_TRUNCATED | CODEC_CAP_DELAY,
    .flush          = ff_mpeg_flush,
    .max_lowres     = 3,
    .long_name      = NULL_IF_CONFIG_SMALL("H.263 / H.263-1996, H.263+ / H.263-1998 / H.263 version 2"),
    .pix_fmts       = ff_hwaccel_pixfmt_list_420,
}

Definition at line 768 of file h263dec.c.

Initial value:

 {
    .name           = "h263p",
    .type           = AVMEDIA_TYPE_VIDEO,
    .id             = AV_CODEC_ID_H263P,
    .priv_data_size = sizeof(MpegEncContext),
    .init           = ff_h263_decode_init,
    .close          = ff_h263_decode_end,
    .decode         = ff_h263_decode_frame,
    .capabilities   = CODEC_CAP_DRAW_HORIZ_BAND | CODEC_CAP_DR1 |
                      CODEC_CAP_TRUNCATED | CODEC_CAP_DELAY,
    .flush          = ff_mpeg_flush,
    .max_lowres     = 3,
    .long_name      = NULL_IF_CONFIG_SMALL("H.263 / H.263-1996, H.263+ / H.263-1998 / H.263 version 2"),
    .pix_fmts       = ff_hwaccel_pixfmt_list_420,
}

Definition at line 784 of file h263dec.c.


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