hvirtual/quicktime/ffmpeg/libavcodec/msrle.c File Reference

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "common.h"
#include "avcodec.h"
#include "dsputil.h"

Include dependency graph for msrle.c:

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Data Structures
struct	MsrleContext
Defines
#define	FETCH_NEXT_STREAM_BYTE()
Functions
static void	msrle_decode_pal4 (MsrleContext *s)
static void	msrle_decode_pal8 (MsrleContext *s)
static int	msrle_decode_init (AVCodecContext *avctx)
static int	msrle_decode_frame (AVCodecContext *avctx, void *data, int *data_size, uint8_t *buf, int buf_size)
static int	msrle_decode_end (AVCodecContext *avctx)
Variables
AVCodec	msrle_decoder

---

Detailed Description

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

The MS RLE decoder outputs PAL8 colorspace data.

Note that this decoder expects the palette colors from the end of the BITMAPINFO header passed through palctrl.

Definition in file msrle.c.

---

Define Documentation

 

#define FETCH_NEXT_STREAM_BYTE

(

)

Value:

if (stream_ptr >= s->size) \
    { \
      av_log(s->avctx, AV_LOG_ERROR, " MS RLE: stream ptr just went out of bounds (1)\n"); \
      return; \
    } \
    stream_byte = s->buf[stream_ptr++];

Definition at line 50 of file msrle.c.

---

Function Documentation

static int msrle_decode_end

(

AVCodecContext *

avctx

)

[static]

Definition at line 286 of file msrle.c.

References MsrleContext::frame, AVCodecContext::priv_data, AVCodecContext::release_buffer, and s.

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

Definition at line 251 of file msrle.c.

References av_log(), AV_LOG_ERROR, AVCodecContext::bits_per_sample, MsrleContext::buf, FF_BUFFER_HINTS_PRESERVE, FF_BUFFER_HINTS_REUSABLE, FF_BUFFER_HINTS_VALID, MsrleContext::frame, msrle_decode_pal4(), msrle_decode_pal8(), AVCodecContext::priv_data, AVCodecContext::reget_buffer, s, and MsrleContext::size.

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static int msrle_decode_init

(

AVCodecContext *

avctx

)

[static]

Definition at line 238 of file msrle.c.

References MsrleContext::avctx, MsrleContext::frame, AVCodecContext::has_b_frames, NULL, AVCodecContext::pix_fmt, PIX_FMT_PAL8, AVCodecContext::priv_data, and s.

static void msrle_decode_pal4

(

MsrleContext *

s

)

[static]

Definition at line 58 of file msrle.c.

References av_log(), AV_LOG_ERROR, MsrleContext::avctx, AVPALETTE_SIZE, FETCH_NEXT_STREAM_BYTE, MsrleContext::frame, AVCodecContext::height, memcpy, AVCodecContext::palctrl, AVPaletteControl::palette, AVPaletteControl::palette_changed, MsrleContext::size, and AVCodecContext::width.

Referenced by msrle_decode_frame().

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static void msrle_decode_pal8

(

MsrleContext *

s

)

[static]

Definition at line 153 of file msrle.c.

References av_log(), AV_LOG_ERROR, MsrleContext::avctx, AVPALETTE_SIZE, FETCH_NEXT_STREAM_BYTE, MsrleContext::frame, AVCodecContext::height, memcpy, AVCodecContext::palctrl, AVPaletteControl::palette, AVPaletteControl::palette_changed, and MsrleContext::size.

Referenced by msrle_decode_frame().

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---

Variable Documentation

AVCodec msrle_decoder

Initial value:

 {
    "msrle",
    CODEC_TYPE_VIDEO,
    CODEC_ID_MSRLE,
    sizeof(MsrleContext),
    msrle_decode_init,
    NULL,
    msrle_decode_end,
    msrle_decode_frame,
    CODEC_CAP_DR1,
}

Definition at line 297 of file msrle.c.

Referenced by avcodec_register_all().