tdsc.c File Reference

TDSC decoder. More...

#include <stdint.h>
#include <zlib.h>
#include "libavutil/imgutils.h"
#include "avcodec.h"
#include "bytestream.h"
#include "internal.h"

Classes
struct	TDSCContext

Macros
#define	BITMAPINFOHEADER_SIZE   0x28
#define	TDSF_HEADER_SIZE   0x56
#define	TDSB_HEADER_SIZE   0x08
#define	APPLY_ALPHA(src, new, alpha)   src = (src * (256 - alpha) + new * alpha) >> 8

Typedefs
typedef struct TDSCContext	TDSCContext

Enumerations
enum	TDSCCursorFormat { CUR_FMT_MONO = 0x01010004, CUR_FMT_BGRA = 0x20010004, CUR_FMT_RGBA = 0x20010008 }

Variables
AVCodec	ff_tdsc_decoder

Detailed Description

TDSC decoder.

Fourcc: TSDC

TDSC is very simple. It codes picture by tiles, storing them in raw BGR24 format or compressing them in JPEG. Frames can be full pictures or just updates to the previous frame. Cursor is found in its own frame or at the bottom of the picture. Every frame is then packed with zlib.

Supports: BGR24

Variable Documentation

ff_tdsc_decoder

AVCodec ff_tdsc_decoder

Initial value:

= {
    .name           = "tdsc",
    .long_name      = NULL_IF_CONFIG_SMALL("TDSC"),
    .type           = AVMEDIA_TYPE_VIDEO,
    .id             = AV_CODEC_ID_TDSC,
    .init           = tdsc_init,
    .decode         = tdsc_decode_frame,
    .close          = tdsc_close,
    .priv_data_size = sizeof(TDSCContext),
    .capabilities   = AV_CODEC_CAP_DR1,
    .caps_internal  = FF_CODEC_CAP_INIT_THREADSAFE |
                      FF_CODEC_CAP_INIT_CLEANUP,
}