eatgv.c File Reference

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

#include "avcodec.h"
#include "get_bits.h"
#include "libavutil/imgutils.h"
#include "libavutil/mem.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, unsigned char *dst, int width, int height)
	Unpack buffer.
static int	tgv_decode_inter (TgvContext *s, const uint8_t *buf, const uint8_t *buf_end)
	Decode inter-frame.
static void	cond_release_buffer (AVFrame *pic)
	release AVFrame buffers if allocated
static int	tgv_decode_frame (AVCodecContext *avctx, void *data, int *got_frame, AVPacket *avpkt)
static av_cold int	tgv_decode_end (AVCodecContext *avctx)

Variables
AVCodec	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

#define BITSTREAM_READER_LE

Definition at line 32 of file eatgv.c.

#define EA_PREAMBLE_SIZE   8

Definition at line 37 of file eatgv.c.

Referenced by tgv_decode_frame().

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

Definition at line 38 of file eatgv.c.

Referenced by tgv_decode_frame().

Function Documentation

static av_cold int tgv_decode_init ( AVCodecContext *  avctx )

static

Definition at line 53 of file eatgv.c.

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

static

Unpack buffer.

Returns

0 on success, -1 on critical buffer underflow

Definition at line 67 of file eatgv.c.

Referenced by tgv_decode_frame().

static int tgv_decode_inter ( TgvContext *  s, 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 140 of file eatgv.c.

Referenced by tgv_decode_frame().

static void cond_release_buffer ( AVFrame *  pic )

static

release AVFrame buffers if allocated

Definition at line 247 of file eatgv.c.

Referenced by tgv_decode_end(), and tgv_decode_frame().

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

static

Definition at line 255 of file eatgv.c.

static av_cold int tgv_decode_end ( AVCodecContext *  avctx )

static

Definition at line 341 of file eatgv.c.

Variable Documentation

AVCodec ff_eatgv_decoder

Initial value:

= {
    .name           = "eatgv",
    .type           = AVMEDIA_TYPE_VIDEO,
    .id             = AV_CODEC_ID_TGV,
    .priv_data_size = sizeof(TgvContext),
    .init           = tgv_decode_init,
    .close          = tgv_decode_end,
    .decode         = tgv_decode_frame,
    .long_name      = NULL_IF_CONFIG_SMALL("Electronic Arts TGV video"),
}

Definition at line 351 of file eatgv.c.