c93.c File Reference

#include "avcodec.h"
#include "bytestream.h"
#include "codec_internal.h"
#include "decode.h"
#include "libavutil/attributes.h"

Go to the source code of this file.

Data Structures
struct	C93DecoderContext

Macros
#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_end (AVCodecContext *avctx)
static av_cold int	decode_init (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, AVFrame *rframe, int *got_frame, AVPacket *avpkt)

Variables
const FFCodec	ff_c93_decoder

Macro Definition Documentation

WIDTH

#define WIDTH   320

Definition at line 45 of file c93.c.

Referenced by check_alpha_detect(), check_blackdetect(), check_eq(), check_hflip(), check_horiz_slice(), check_idet(), check_range_detect(), check_scene_sad(), check_sobel(), check_threshold(), check_verti_slice(), checkasm_check_vf_bwdif(), checkasm_check_vf_gblur(), config_props(), copy_block(), decode_frame(), request_frame(), test_motion(), vp3_check_idct(), and vp3_check_put_no_rnd_pixels_l2().

HEIGHT

#define HEIGHT   192

Definition at line 46 of file c93.c.

Referenced by check_alpha_detect(), check_blackdetect(), check_eq(), check_horiz_slice(), check_range_detect(), check_scene_sad(), check_sobel(), check_verti_slice(), checkasm_check_vf_gblur(), config_props(), copy_block(), decode_frame(), request_frame(), test_motion(), and vp3_check_put_no_rnd_pixels_l2().

C93_HAS_PALETTE

#define C93_HAS_PALETTE   0x01

Definition at line 48 of file c93.c.

Referenced by decode_frame(), and read_packet().

C93_FIRST_FRAME

#define C93_FIRST_FRAME   0x02

Definition at line 49 of file c93.c.

Referenced by decode_frame(), and read_packet().

Enumeration Type Documentation

C93BlockType

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 33 of file c93.c.

Function Documentation

decode_end()

static av_cold int decode_end ( AVCodecContext * avctx )

static

Definition at line 51 of file c93.c.

decode_init()

static av_cold int decode_init ( AVCodecContext * avctx )

static

Definition at line 61 of file c93.c.

copy_block()

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

inlinestatic

Definition at line 74 of file c93.c.

Referenced by decode_frame().

draw_n_color()

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 )

inlinestatic

Definition at line 108 of file c93.c.

Referenced by decode_frame().

decode_frame()

static int decode_frame ( AVCodecContext * avctx, AVFrame * rframe, int * got_frame, AVPacket * avpkt )

static

Definition at line 124 of file c93.c.

Variable Documentation

ff_c93_decoder

const FFCodec ff_c93_decoder

Initial value:

= {
    .p.name         = "c93",
    CODEC_LONG_NAME("Interplay C93"),
    .p.type         = AVMEDIA_TYPE_VIDEO,
    .p.id           = AV_CODEC_ID_C93,
    .priv_data_size = sizeof(C93DecoderContext),
    .init           = decode_init,
    .close          = decode_end,
    FF_CODEC_DECODE_CB(decode_frame),
    .p.capabilities = AV_CODEC_CAP_DR1,
    .caps_internal  = FF_CODEC_CAP_INIT_CLEANUP,
}

Definition at line 263 of file c93.c.