cdxl.c File Reference

Commodore CDXL video decoder. More...

#include "libavutil/intreadwrite.h"
#include "libavutil/imgutils.h"
#include "avcodec.h"
#include "bytestream.h"
#include "get_bits.h"
#include "internal.h"

Go to the source code of this file.

Data Structures
struct	CDXLVideoContext

Macros
#define	UNCHECKED_BITSTREAM_READER   1
#define	BIT_PLANAR   0x00
#define	CHUNKY   0x20
#define	BYTE_PLANAR   0x40
#define	BIT_LINE   0x80
#define	BYTE_LINE   0xC0

Functions
static av_cold int	cdxl_decode_init (AVCodecContext *avctx)
static void	import_palette (CDXLVideoContext *c, uint32_t *new_palette)
static void	bitplanar2chunky (CDXLVideoContext *c, int linesize, uint8_t *out)
static void	bitline2chunky (CDXLVideoContext *c, int linesize, uint8_t *out)
static void	chunky2chunky (CDXLVideoContext *c, int linesize, uint8_t *out)
static void	import_format (CDXLVideoContext *c, int linesize, uint8_t *out)
static void	cdxl_decode_rgb (CDXLVideoContext *c, AVFrame *frame)
static void	cdxl_decode_raw (CDXLVideoContext *c, AVFrame *frame)
static void	cdxl_decode_ham6 (CDXLVideoContext *c, AVFrame *frame)
static void	cdxl_decode_ham8 (CDXLVideoContext *c, AVFrame *frame)
static int	cdxl_decode_frame (AVCodecContext *avctx, void *data, int *got_frame, AVPacket *pkt)
static av_cold int	cdxl_decode_end (AVCodecContext *avctx)

Variables
AVCodec	ff_cdxl_decoder

Detailed Description

Commodore CDXL video decoder.

Author

Paul B Mahol

Definition in file cdxl.c.

Macro Definition Documentation

UNCHECKED_BITSTREAM_READER

#define UNCHECKED_BITSTREAM_READER   1

Definition at line 28 of file cdxl.c.

BIT_PLANAR

#define BIT_PLANAR   0x00

Definition at line 37 of file cdxl.c.

Referenced by cdxl_decode_frame(), and import_format().

CHUNKY

#define CHUNKY   0x20

Definition at line 38 of file cdxl.c.

Referenced by cdxl_decode_frame(), and import_format().

BYTE_PLANAR

#define BYTE_PLANAR   0x40

Definition at line 39 of file cdxl.c.

BIT_LINE

#define BIT_LINE   0x80

Definition at line 40 of file cdxl.c.

Referenced by cdxl_decode_frame(), and import_format().

BYTE_LINE

#define BYTE_LINE   0xC0

Definition at line 41 of file cdxl.c.

Function Documentation

cdxl_decode_init()

static av_cold int cdxl_decode_init ( AVCodecContext *  avctx )

static

Definition at line 56 of file cdxl.c.

import_palette()

static void import_palette ( CDXLVideoContext *  c, uint32_t *  new_palette  )

static

Definition at line 66 of file cdxl.c.

Referenced by cdxl_decode_ham6(), cdxl_decode_ham8(), and cdxl_decode_rgb().

bitplanar2chunky()

static void bitplanar2chunky ( CDXLVideoContext *  c, int  linesize, uint8_t *  out  )

static

Definition at line 79 of file cdxl.c.

Referenced by import_format().

bitline2chunky()

static void bitline2chunky ( CDXLVideoContext *  c, int  linesize, uint8_t *  out  )

static

Definition at line 95 of file cdxl.c.

Referenced by import_format().

chunky2chunky()

static void chunky2chunky ( CDXLVideoContext *  c, int  linesize, uint8_t *  out  )

static

Definition at line 111 of file cdxl.c.

Referenced by import_format().

import_format()

static void import_format ( CDXLVideoContext *  c, int  linesize, uint8_t *  out  )

static

Definition at line 122 of file cdxl.c.

Referenced by cdxl_decode_ham6(), cdxl_decode_ham8(), cdxl_decode_raw(), and cdxl_decode_rgb().

cdxl_decode_rgb()

static void cdxl_decode_rgb ( CDXLVideoContext *  c, AVFrame *  frame  )

static

Definition at line 139 of file cdxl.c.

Referenced by cdxl_decode_frame().

cdxl_decode_raw()

static void cdxl_decode_raw ( CDXLVideoContext *  c, AVFrame *  frame  )

static

Definition at line 148 of file cdxl.c.

Referenced by cdxl_decode_frame().

cdxl_decode_ham6()

static void cdxl_decode_ham6 ( CDXLVideoContext *  c, AVFrame *  frame  )

static

Definition at line 153 of file cdxl.c.

Referenced by cdxl_decode_frame().

cdxl_decode_ham8()

static void cdxl_decode_ham8 ( CDXLVideoContext *  c, AVFrame *  frame  )

static

Definition at line 196 of file cdxl.c.

Referenced by cdxl_decode_frame().

cdxl_decode_frame()

static int cdxl_decode_frame ( AVCodecContext *  avctx, void *  data, int *  got_frame, AVPacket *  pkt  )

static

Definition at line 239 of file cdxl.c.

cdxl_decode_end()

static av_cold int cdxl_decode_end ( AVCodecContext *  avctx )

static

Definition at line 318 of file cdxl.c.

Variable Documentation

ff_cdxl_decoder

AVCodec ff_cdxl_decoder

Initial value:

= {
    .name           = "cdxl",
    .long_name      = NULL_IF_CONFIG_SMALL("Commodore CDXL video"),
    .type           = AVMEDIA_TYPE_VIDEO,
    .id             = AV_CODEC_ID_CDXL,
    .priv_data_size = sizeof(CDXLVideoContext),
    .init           = cdxl_decode_init,
    .close          = cdxl_decode_end,
    .decode         = cdxl_decode_frame,
    .capabilities   = AV_CODEC_CAP_DR1,
}

Definition at line 327 of file cdxl.c.