dxa.c File Reference

#include "libavutil/intreadwrite.h"
#include "libavutil/mem.h"
#include "bytestream.h"
#include "avcodec.h"
#include "codec_internal.h"
#include "decode.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, AVFrame *frame, int *got_frame, AVPacket *avpkt)
static av_cold int	decode_init (AVCodecContext *avctx)
static av_cold int	decode_end (AVCodecContext *avctx)

Variables
static const uint8_t	shift1 [6] = { 0, 8, 8, 8, 4, 4 }
static const uint8_t	shift2 [6] = { 0, 0, 8, 4, 0, 4 }
const FFCodec	ff_dxa_decoder

Detailed Description

DXA Video decoder

Definition in file dxa.c.

Macro Definition Documentation

DECOMP_BUF_PADDING

#define DECOMP_BUF_PADDING   16

Definition at line 43 of file dxa.c.

Function Documentation

decode_13()

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 51 of file dxa.c.

Referenced by decode_frame().

decode_frame()

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

static

Definition at line 208 of file dxa.c.

decode_init()

static av_cold int decode_init ( AVCodecContext *  avctx )

static

Definition at line 329 of file dxa.c.

decode_end()

static av_cold int decode_end ( AVCodecContext *  avctx )

static

Definition at line 354 of file dxa.c.

Variable Documentation

shift1

const uint8_t shift1[6] = { 0, 8, 8, 8, 4, 4 }

static

Definition at line 48 of file dxa.c.

Referenced by decode_13(), dmvr_h(), dmvr_hv(), dmvr_v(), dnxhd_decode_macroblock(), do_plc(), fixed_sqrt(), put_scaled(), and put_uni_w_scaled().

shift2

const uint8_t shift2[6] = { 0, 0, 8, 4, 0, 4 }

static

Definition at line 49 of file dxa.c.

Referenced by decode_13(), derive_bdof_vx_vy(), dmvr_hv(), do_plc(), fixed_sqrt(), FUNC(), predictor_decode_mono_3800(), predictor_decode_stereo_3800(), put_scaled(), put_uni_w_scaled(), and sbr_hf_assemble().

ff_dxa_decoder

const FFCodec ff_dxa_decoder

Initial value:

= {
    .p.name         = "dxa",
    CODEC_LONG_NAME("Feeble Files/ScummVM DXA"),
    .p.type         = AVMEDIA_TYPE_VIDEO,
    .p.id           = AV_CODEC_ID_DXA,
    .priv_data_size = sizeof(DxaDecContext),
    .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 364 of file dxa.c.