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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 354 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
AVCodec ff_dxa_decoder
Initial value:
= {
.name = "dxa",
.long_name = NULL_IF_CONFIG_SMALL("Feeble Files/ScummVM DXA"),
.priv_data_size = sizeof(DxaDecContext),
.close = decode_end,
.capabilities = AV_CODEC_CAP_DR1,
}
static av_cold int init(AVCodecContext *avctx)
Definition: avrndec.c:35
static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame, AVPacket *avpkt)
Definition: dxa.c:210
static av_cold int decode_end(AVCodecContext *avctx)
Definition: dxa.c:354
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:176
static av_cold int decode_init(AVCodecContext *avctx)
Definition: dxa.c:328
static int decode(AVCodecContext *avctx, AVFrame *frame, int *got_frame, AVPacket *pkt)
Definition: ffmpeg.c:2045
#define AV_CODEC_CAP_DR1
Codec uses get_buffer() for allocating buffers and supports custom allocators.
Definition: avcodec.h:959

Definition at line 364 of file dxa.c.