libavcodec/msvideo1.c File Reference

Microsoft Video-1 Decoder by Mike Melanson (melanson@pcisys.net) For more information about the MS Video-1 format, visit: http://www.pcisys.net/~melanson/codecs/. More...

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "libavutil/intreadwrite.h"
#include "avcodec.h"

Go to the source code of this file.

Data Structures
struct	Msvideo1Context
Defines
#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, void *data, int *data_size, const uint8_t *buf, int buf_size)
static av_cold int	msvideo1_decode_end (AVCodecContext *avctx)
Variables
AVCodec	msvideo1_decoder

---

Detailed Description

Microsoft Video-1 Decoder by Mike Melanson (melanson@pcisys.net) For more information about the MS Video-1 format, visit: http://www.pcisys.net/~melanson/codecs/.

This decoder outputs either PAL8 or RGB555 data, depending on the whether a RGB palette was passed through palctrl; if it's present, then the data is PAL8; RGB555 otherwise.

Definition in file msvideo1.c.

---

Define Documentation

#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 42 of file msvideo1.c.

#define PALETTE_COUNT   256

Definition at line 41 of file msvideo1.c.

---

Function Documentation

static void msvideo1_decode_16bit

(

Msvideo1Context *

s

)

[static]

Definition at line 186 of file msvideo1.c.

Referenced by msvideo1_decode_frame().

static void msvideo1_decode_8bit

(

Msvideo1Context *

s

)

[static]

Definition at line 81 of file msvideo1.c.

Referenced by msvideo1_decode_frame().

static av_cold int msvideo1_decode_end

(

AVCodecContext *

avctx

)

[static]

Definition at line 323 of file msvideo1.c.

static int msvideo1_decode_frame	(	AVCodecContext *	avctx,
		void *	data,
		int *	data_size,
		const uint8_t *	buf,
		int	buf_size
	)			[static]

Definition at line 295 of file msvideo1.c.

static av_cold int msvideo1_decode_init

(

AVCodecContext *

avctx

)

[static]

Definition at line 61 of file msvideo1.c.

---

Variable Documentation

AVCodec msvideo1_decoder

Initial value:

 {
    "msvideo1",
    CODEC_TYPE_VIDEO,
    CODEC_ID_MSVIDEO1,
    sizeof(Msvideo1Context),
    msvideo1_decode_init,
    NULL,
    msvideo1_decode_end,
    msvideo1_decode_frame,
    CODEC_CAP_DR1,
    .long_name= NULL_IF_CONFIG_SMALL("Microsoft Video 1"),
}

Definition at line 333 of file msvideo1.c.