libavcodec/c93.c File Reference

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

Go to the source code of this file.

Data Structures
struct	C93DecoderContext
Defines
#define	WIDTH   320
#define	HEIGHT   192
#define	C93_HAS_PALETTE   0x01
#define	C93_FIRST_FRAME   0x02
Enumerations
enum	C93BlockType {   C93_8X8_FROM_PREV = 0x02, C93_4X4_FROM_PREV = 0x06, C93_4X4_FROM_CURR = 0x07, C93_8X8_2COLOR = 0x08,   C93_4X4_2COLOR = 0x0A, C93_4X4_4COLOR_GRP = 0x0B, C93_4X4_4COLOR = 0x0D, C93_NOOP = 0x0E,   C93_8X8_INTRA = 0x0F }
Functions
static av_cold int	decode_init (AVCodecContext *avctx)
static av_cold int	decode_end (AVCodecContext *avctx)
static int	copy_block (AVCodecContext *avctx, uint8_t *to, uint8_t *from, int offset, int height, int stride)
static void	draw_n_color (uint8_t *out, int stride, int width, int height, int bpp, uint8_t cols[4], uint8_t grps[4], uint32_t col)
static int	decode_frame (AVCodecContext *avctx, void *data, int *data_size, AVPacket *avpkt)
Variables
AVCodec	ff_c93_decoder

---

Define Documentation

#define C93_FIRST_FRAME   0x02

Definition at line 46 of file c93.c.

Referenced by decode_frame(), and read_packet().

#define C93_HAS_PALETTE   0x01

Definition at line 45 of file c93.c.

Referenced by decode_frame(), and read_packet().

#define HEIGHT   192

Definition at line 43 of file c93.c.

Referenced by config(), copy_block(), decode_frame(), put_image(), and test_motion().

#define WIDTH   320

Definition at line 42 of file c93.c.

Referenced by config(), copy_block(), decode_frame(), put_image(), and test_motion().

---

Enumeration Type Documentation

enum C93BlockType

Enumerator:

C93_8X8_FROM_PREV
C93_4X4_FROM_PREV
C93_4X4_FROM_CURR
C93_8X8_2COLOR
C93_4X4_2COLOR
C93_4X4_4COLOR_GRP
C93_4X4_4COLOR
C93_NOOP
C93_8X8_INTRA

Definition at line 30 of file c93.c.

---

Function Documentation

static int copy_block	(	AVCodecContext *	avctx,
		uint8_t *	to,
		uint8_t *	from,
		int	offset,
		int	height,
		int	stride
	)			[inline, static]

Definition at line 69 of file c93.c.

Referenced by decode_frame().

static av_cold int decode_end

(

AVCodecContext *

avctx

)

[static]

Definition at line 58 of file c93.c.

static int decode_frame	(	AVCodecContext *	avctx,
		void *	data,
		int *	data_size,
		AVPacket *	avpkt
	)			[static]

Definition at line 119 of file c93.c.

static av_cold int decode_init

(

AVCodecContext *

avctx

)

[static]

Definition at line 48 of file c93.c.

static void draw_n_color	(	uint8_t *	out,
		int	stride,
		int	width,
		int	height,
		int	bpp,
		uint8_t	cols[4],
		uint8_t	grps[4],
		uint32_t	col
	)			[inline, static]

Definition at line 103 of file c93.c.

Referenced by decode_frame().

---

Variable Documentation

AVCodec ff_c93_decoder

Initial value:

 {
    "c93",
    AVMEDIA_TYPE_VIDEO,
    CODEC_ID_C93,
    sizeof(C93DecoderContext),
    decode_init,
    NULL,
    decode_end,
    decode_frame,
    CODEC_CAP_DR1,
    .long_name = NULL_IF_CONFIG_SMALL("Interplay C93"),
}

Definition at line 249 of file c93.c.