libavcodec/eatgv.c File Reference

Electronic Arts TGV Video Decoder by Peter Ross (pross@xvid.org). More...

#include "avcodec.h"
#include "get_bits.h"
#include "libavutil/lzo.h"
#include "libavutil/imgutils.h"

Go to the source code of this file.

Data Structures
struct	TgvContext
Defines
#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 *data_size, 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@xvid.org).

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

Definition in file eatgv.c.

---

Define 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.

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

Definition at line 38 of file eatgv.c.

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

---

Function Documentation

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 av_cold int tgv_decode_end

(

AVCodecContext *

avctx

)

[static]

Definition at line 342 of file eatgv.c.

static int tgv_decode_frame	(	AVCodecContext *	avctx,
		void *	data,
		int *	data_size,
		AVPacket *	avpkt
	)			[static]

Definition at line 255 of file eatgv.c.

static av_cold int tgv_decode_init

(

AVCodecContext *

avctx

)

[static]

Definition at line 53 of file eatgv.c.

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 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().

---

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 352 of file eatgv.c.