msvideo1.c File Reference

Microsoft Video-1 Decoder by Mike Melanson (melan.nosp@m.son@.nosp@m.pcisy.nosp@m.s.ne.nosp@m.t) For more information about the MS Video-1 format, visit: http://www.pcisys.net/~melanson/codecs/. More...

#include <string.h>
#include "libavutil/internal.h"
#include "libavutil/intreadwrite.h"
#include "avcodec.h"
#include "codec_internal.h"
#include "decode.h"

Go to the source code of this file.

Data Structures
struct	Msvideo1Context

Macros
#define	PALETTE_COUNT   256
#define	CHECK_STREAM_PTR(n)

Functions
static av_cold int	msvideo1_decode_init (AVCodecContext *avctx)
static void	msvideo1_decode_8bit (Msvideo1Context *s)
static void	msvideo1_decode_16bit (Msvideo1Context *s)
static int	msvideo1_decode_frame (AVCodecContext *avctx, AVFrame *rframe, int *got_frame, AVPacket *avpkt)
static av_cold int	msvideo1_decode_end (AVCodecContext *avctx)

Variables
const FFCodec	ff_msvideo1_decoder

Detailed Description

Microsoft Video-1 Decoder by Mike Melanson (melan.nosp@m.son@.nosp@m.pcisy.nosp@m.s.ne.nosp@m.t) For more information about the MS Video-1 format, visit: http://www.pcisys.net/~melanson/codecs/.

Definition in file msvideo1.c.

Macro Definition Documentation

PALETTE_COUNT

#define PALETTE_COUNT   256

Definition at line 37 of file msvideo1.c.

CHECK_STREAM_PTR

#define CHECK_STREAM_PTR

(

n

)

Value:

  if ((stream_ptr + n) > s->size ) { \
    av_log(s->avctx, AV_LOG_ERROR, " MS Video-1 warning: stream_ptr out of bounds (%d >= %d)\n", \
      stream_ptr + n, s->size); \
    return; \
  }

Definition at line 38 of file msvideo1.c.

Referenced by msvideo1_decode_16bit(), and msvideo1_decode_8bit().

Function Documentation

msvideo1_decode_init()

static av_cold int msvideo1_decode_init ( AVCodecContext * avctx )

static

Definition at line 58 of file msvideo1.c.

msvideo1_decode_8bit()

static void msvideo1_decode_8bit ( Msvideo1Context * s )

static

Definition at line 85 of file msvideo1.c.

Referenced by msvideo1_decode_frame().

msvideo1_decode_16bit()

static void msvideo1_decode_16bit ( Msvideo1Context * s )

static

Definition at line 185 of file msvideo1.c.

Referenced by msvideo1_decode_frame().

msvideo1_decode_frame()

static int msvideo1_decode_frame ( AVCodecContext * avctx, AVFrame * rframe, int * got_frame, AVPacket * avpkt )

static

Definition at line 294 of file msvideo1.c.

msvideo1_decode_end()

static av_cold int msvideo1_decode_end ( AVCodecContext * avctx )

static

Definition at line 332 of file msvideo1.c.

Variable Documentation

ff_msvideo1_decoder

const FFCodec ff_msvideo1_decoder

Initial value:

= {
    .p.name         = "msvideo1",
    CODEC_LONG_NAME("Microsoft Video 1"),
    .p.type         = AVMEDIA_TYPE_VIDEO,
    .p.id           = AV_CODEC_ID_MSVIDEO1,
    .priv_data_size = sizeof(Msvideo1Context),
    .init           = msvideo1_decode_init,
    .close          = msvideo1_decode_end,
    FF_CODEC_DECODE_CB(msvideo1_decode_frame),
    .p.capabilities = AV_CODEC_CAP_DR1,
}

Definition at line 341 of file msvideo1.c.