sgirledec.c File Reference

Silicon Graphics RLE 8-bit video decoder. More...

#include "libavutil/common.h"
#include "avcodec.h"
#include "internal.h"

Macros
#define	RBG323_TO_BGR8(x)
	Convert SGI RBG323 pixel into AV_PIX_FMT_BGR8 SGI RGB data is packed as 8bpp, (msb)3R 2B 3G(lsb) More...
#define	INC_XY(n)

Variables
AVCodec	ff_sgirle_decoder

Detailed Description

Silicon Graphics RLE 8-bit video decoder.

Note

Data is packed in rbg323 with rle, contained in mv or mov. The algorithm and pixfmt are subtly different from SGI images.

Macro Definition Documentation

INC_XY

#define INC_XY

(

n

)

Value:

x += n;                                                                   \
    if (x >= width) {                                                         \
        y++;                                                                  \
        if (y >= height)                                                      \
            return 0;                                                         \
        x = 0;                                                                \
    }

RBG323_TO_BGR8

#define RBG323_TO_BGR8

(

x

)

Value:

((((x) << 3) & 0xC0) |                                \
                           (((x) << 3) & 0x38) |                                \
                           (((x) >> 5) & 7))

Convert SGI RBG323 pixel into AV_PIX_FMT_BGR8 SGI RGB data is packed as 8bpp, (msb)3R 2B 3G(lsb)

Variable Documentation

ff_sgirle_decoder

AVCodec ff_sgirle_decoder

Initial value:

= {
    .name           = "sgirle",
    .long_name      = NULL_IF_CONFIG_SMALL("Silicon Graphics RLE 8-bit video"),
    .type           = AVMEDIA_TYPE_VIDEO,
    .id             = AV_CODEC_ID_SGIRLE,
    .init           = sgirle_decode_init,
    .decode         = sgirle_decode_frame,
    .capabilities   = AV_CODEC_CAP_DR1,
}