wnv1.c File Reference

#include "avcodec.h"
#include "get_bits.h"
#include "internal.h"
#include "mathops.h"

Go to the source code of this file.

Data Structures
struct	WNV1Context

Macros
#define	CODE_VLC_BITS   9

Functions
static int	wnv1_get_code (WNV1Context *w, int base_value)
static int	decode_frame (AVCodecContext *avctx, void *data, int *got_frame, AVPacket *avpkt)
static av_cold int	decode_init (AVCodecContext *avctx)

Variables
static const uint16_t	code_tab [16][2]
static VLC	code_vlc
AVCodec	ff_wnv1_decoder

Detailed Description

Winnov WNV1 codec.

Definition in file wnv1.c.

Macro Definition Documentation

CODE_VLC_BITS

#define CODE_VLC_BITS   9

Definition at line 44 of file wnv1.c.

Function Documentation

wnv1_get_code()

static int wnv1_get_code ( WNV1Context *  w, int  base_value  )

inlinestatic

Definition at line 48 of file wnv1.c.

Referenced by decode_frame().

decode_frame()

static int decode_frame ( AVCodecContext *  avctx, void *  data, int *  got_frame, AVPacket *  avpkt  )

static

Definition at line 58 of file wnv1.c.

decode_init()

static av_cold int decode_init ( AVCodecContext *  avctx )

static

Definition at line 135 of file wnv1.c.

Variable Documentation

code_tab

const uint16_t code_tab[16][2]

static

Initial value:

= {
    { 0x1FD, 9 }, { 0xFD, 8 }, { 0x7D, 7 }, { 0x3D, 6 }, { 0x1D, 5 }, { 0x0D, 4 }, { 0x005, 3 },
    { 0x000, 1 },
    { 0x004, 3 }, { 0x0C, 4 }, { 0x1C, 5 }, { 0x3C, 6 }, { 0x7C, 7 }, { 0xFC, 8 }, { 0x1FC, 9 }, { 0xFF, 8 }
}

Definition at line 38 of file wnv1.c.

Referenced by decode_init().

code_vlc

VLC code_vlc

static

Definition at line 45 of file wnv1.c.

Referenced by decode_channel(), decode_init(), and wnv1_get_code().

ff_wnv1_decoder

AVCodec ff_wnv1_decoder

Initial value:

= {
    .name           = "wnv1",
    .long_name      = NULL_IF_CONFIG_SMALL("Winnov WNV1"),
    .type           = AVMEDIA_TYPE_VIDEO,
    .id             = AV_CODEC_ID_WNV1,
    .priv_data_size = sizeof(WNV1Context),
    .init           = decode_init,
    .decode         = decode_frame,
    .capabilities   = AV_CODEC_CAP_DR1,
}

Definition at line 150 of file wnv1.c.