cdgraphics.c File Reference

CD Graphics Video Decoder. More...

#include "avcodec.h"
#include "bytestream.h"
#include "internal.h"

Classes
struct	CDGraphicsContext

Macros
#define	CDG_FULL_WIDTH   300
	default screen sizes
#define	CDG_FULL_HEIGHT   216
#define	CDG_DISPLAY_WIDTH   294
#define	CDG_DISPLAY_HEIGHT   204
#define	CDG_BORDER_WIDTH   6
#define	CDG_BORDER_HEIGHT   12
#define	CDG_COMMAND   0x09
	masks
#define	CDG_MASK   0x3F
#define	CDG_INST_MEMORY_PRESET   1
	instruction codes
#define	CDG_INST_BORDER_PRESET   2
#define	CDG_INST_TILE_BLOCK   6
#define	CDG_INST_SCROLL_PRESET   20
#define	CDG_INST_SCROLL_COPY   24
#define	CDG_INST_TRANSPARENT_COL   28
#define	CDG_INST_LOAD_PAL_LO   30
#define	CDG_INST_LOAD_PAL_HIGH   31
#define	CDG_INST_TILE_BLOCK_XOR   38
#define	CDG_PACKET_SIZE   24
	data sizes
#define	CDG_DATA_SIZE   16
#define	CDG_TILE_HEIGHT   12
#define	CDG_TILE_WIDTH   6
#define	CDG_MINIMUM_PKT_SIZE   6
#define	CDG_MINIMUM_SCROLL_SIZE   3
#define	CDG_HEADER_SIZE   8
#define	CDG_PALETTE_SIZE   16
#define	UP   2
#define	DOWN   1
#define	LEFT   2
#define	RIGHT   1

Typedefs
typedef struct CDGraphicsContext	CDGraphicsContext

Variables
AVCodec	ff_cdgraphics_decoder

Detailed Description

CD Graphics Video Decoder.

Author

Michael Tison

See also

http://wiki.multimedia.cx/index.php?title=CD_Graphics

http://www.ccs.neu.edu/home/bchafy/cdb/info/cdg

Variable Documentation

ff_cdgraphics_decoder

AVCodec ff_cdgraphics_decoder

Initial value:

= {
    .name           = "cdgraphics",
    .long_name      = NULL_IF_CONFIG_SMALL("CD Graphics video"),
    .type           = AVMEDIA_TYPE_VIDEO,
    .id             = AV_CODEC_ID_CDGRAPHICS,
    .priv_data_size = sizeof(CDGraphicsContext),
    .init           = cdg_decode_init,
    .close          = cdg_decode_end,
    .decode         = cdg_decode_frame,
    .capabilities   = AV_CODEC_CAP_DR1,
}