eatgv.c File Reference

Electronic Arts TGV Video Decoder by Peter Ross (pross.nosp@m.@xvi.nosp@m.d.org) More...

#include "libavutil/mem.h"
#include "avcodec.h"
#include "get_bits.h"
#include "codec_internal.h"
#include "decode.h"

Go to the source code of this file.

Data Structures
struct	TgvContext

Macros
#define	BITSTREAM_READER_LE
#define	EA_PREAMBLE_SIZE   8
#define	kVGT_TAG   MKTAG('k', 'V', 'G', 'T')

Functions
static av_cold int	tgv_decode_init (AVCodecContext *avctx)
static int	unpack (const uint8_t *src, const uint8_t *src_end, uint8_t *dst, int width, int height)
	Unpack buffer.
static int	tgv_decode_inter (TgvContext *s, AVFrame *frame, const uint8_t *buf, const uint8_t *buf_end)
	Decode inter-frame.
static int	tgv_decode_frame (AVCodecContext *avctx, AVFrame *frame, int *got_frame, AVPacket *avpkt)
static av_cold int	tgv_decode_end (AVCodecContext *avctx)

Variables
const FFCodec	ff_eatgv_decoder

Detailed Description

Electronic Arts TGV Video Decoder by Peter Ross (pross.nosp@m.@xvi.nosp@m.d.org)

Technical details here: http://wiki.multimedia.cx/index.php?title=Electronic_Arts_TGV

Definition in file eatgv.c.

Macro Definition Documentation

BITSTREAM_READER_LE

#define BITSTREAM_READER_LE

Definition at line 33 of file eatgv.c.

EA_PREAMBLE_SIZE

#define EA_PREAMBLE_SIZE   8

Definition at line 39 of file eatgv.c.

kVGT_TAG

#define kVGT_TAG   MKTAG('k', 'V', 'G', 'T')

Definition at line 40 of file eatgv.c.

Referenced by ea_probe(), ea_read_packet(), process_ea_header(), and tgv_decode_frame().

Function Documentation

tgv_decode_init()

static av_cold int tgv_decode_init ( AVCodecContext * avctx )

static

Definition at line 55 of file eatgv.c.

unpack()

static int unpack ( const uint8_t * src, const uint8_t * src_end, uint8_t * dst, int width, int height )

static

Unpack buffer.

Returns

0 on success, -1 on critical buffer underflow

Definition at line 73 of file eatgv.c.

Referenced by DECL_FUNC(), init_shader(), tgv_decode_frame(), and vk_dpx_end_frame().

tgv_decode_inter()

static int tgv_decode_inter ( TgvContext * s, AVFrame * frame, const uint8_t * buf, const uint8_t * buf_end )

static

Decode inter-frame.

Returns

0 on success, -1 on critical buffer underflow

Definition at line 148 of file eatgv.c.

Referenced by tgv_decode_frame().

tgv_decode_frame()

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

static

Definition at line 264 of file eatgv.c.

tgv_decode_end()

static av_cold int tgv_decode_end ( AVCodecContext * avctx )

static

Definition at line 349 of file eatgv.c.

Variable Documentation

ff_eatgv_decoder

const FFCodec ff_eatgv_decoder

Initial value:

= {
    .p.name         = "eatgv",
    CODEC_LONG_NAME("Electronic Arts TGV video"),
    .p.type         = AVMEDIA_TYPE_VIDEO,
    .p.id           = AV_CODEC_ID_TGV,
    .priv_data_size = sizeof(TgvContext),
    .init           = tgv_decode_init,
    .close          = tgv_decode_end,
    FF_CODEC_DECODE_CB(tgv_decode_frame),
    .p.capabilities = AV_CODEC_CAP_DR1,
}

Definition at line 359 of file eatgv.c.