dxa.c File Reference

DXA Video decoder. More...

#include <stdio.h>
#include <stdlib.h>
#include "libavutil/common.h"
#include "libavutil/intreadwrite.h"
#include "bytestream.h"
#include "avcodec.h"
#include "internal.h"
#include <zlib.h>

Go to the source code of this file.

Data Structures
struct	DxaDecContext

Macros
#define	DECOMP_BUF_PADDING   16

Functions
static int	decode_13 (AVCodecContext *avctx, DxaDecContext *c, uint8_t *dst, int stride, uint8_t *src, int srcsize, uint8_t *ref)
static int	decode_frame (AVCodecContext *avctx, void *data, int *got_frame, AVPacket *avpkt)
static av_cold int	decode_init (AVCodecContext *avctx)
static av_cold int	decode_end (AVCodecContext *avctx)

Variables
static const int	shift1 [6] = { 0, 8, 8, 8, 4, 4 }
static const int	shift2 [6] = { 0, 0, 8, 4, 0, 4 }
AVCodec	ff_dxa_decoder

Detailed Description

DXA Video decoder.

Definition in file dxa.c.

Macro Definition Documentation

#define DECOMP_BUF_PADDING   16

Definition at line 45 of file dxa.c.

Referenced by decode_frame(), and decode_init().

Function Documentation

static int decode_13 ( AVCodecContext *  avctx, DxaDecContext *  c, uint8_t *  dst, int  stride, uint8_t *  src, int  srcsize, uint8_t *  ref  )

static

Definition at line 53 of file dxa.c.

Referenced by decode_frame().

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

static

Definition at line 210 of file dxa.c.

static av_cold int decode_init ( AVCodecContext *  avctx )

static

Definition at line 328 of file dxa.c.

static av_cold int decode_end ( AVCodecContext *  avctx )

static

Definition at line 349 of file dxa.c.

Variable Documentation

const int shift1[6] = { 0, 8, 8, 8, 4, 4 }

static

Definition at line 50 of file dxa.c.

Referenced by decode_13(), dnxhd_decode_macroblock(), and fixed_sqrt().

const int shift2[6] = { 0, 0, 8, 4, 0, 4 }

static

Definition at line 51 of file dxa.c.

Referenced by decode_13(), fixed_sqrt(), line_noise_avg_mmx(), predictor_decode_mono_3800(), and predictor_decode_stereo_3800().

AVCodec ff_dxa_decoder

Initial value:

= {
    .name           = "dxa",
    .long_name      = NULL_IF_CONFIG_SMALL("Feeble Files/ScummVM DXA"),
    .type           = AVMEDIA_TYPE_VIDEO,
    .id             = AV_CODEC_ID_DXA,
    .priv_data_size = sizeof(DxaDecContext),
    .init           = decode_init,
    .close          = decode_end,
    .decode         = decode_frame,
    .capabilities   = CODEC_CAP_DR1,
}

Definition at line 359 of file dxa.c.