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eatgv.c File Reference

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

#include "libavutil/imgutils.h"
#include "libavutil/mem.h"
#include "avcodec.h"
#include "get_bits.h"
#include "internal.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. More...
 
static int tgv_decode_inter (TgvContext *s, AVFrame *frame, const uint8_t *buf, const uint8_t *buf_end)
 Decode inter-frame. More...
 
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 34 of file eatgv.c.

#define EA_PREAMBLE_SIZE   8

Definition at line 39 of file eatgv.c.

Referenced by tgv_decode_frame().

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

Definition at line 40 of file eatgv.c.

Referenced by tgv_decode_frame().

Function Documentation

static av_cold int tgv_decode_init ( AVCodecContext avctx)
static

Definition at line 55 of file eatgv.c.

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 tgv_decode_frame().

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().

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

Definition at line 264 of file eatgv.c.

static av_cold int tgv_decode_end ( AVCodecContext avctx)
static

Definition at line 349 of file eatgv.c.

Variable Documentation

AVCodec ff_eatgv_decoder
Initial value:
= {
.name = "eatgv",
.long_name = NULL_IF_CONFIG_SMALL("Electronic Arts TGV video"),
.priv_data_size = sizeof(TgvContext),
.close = tgv_decode_end,
.capabilities = AV_CODEC_CAP_DR1,
}
static av_cold int init(AVCodecContext *avctx)
Definition: avrndec.c:35
static av_cold int tgv_decode_end(AVCodecContext *avctx)
Definition: eatgv.c:349
#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 tgv_decode_init(AVCodecContext *avctx)
Definition: eatgv.c:55
static int decode(AVCodecContext *avctx, void *data, int *got_sub, AVPacket *avpkt)
Definition: ccaption_dec.c:752
static int tgv_decode_frame(AVCodecContext *avctx, void *data, int *got_frame, AVPacket *avpkt)
Definition: eatgv.c:264
#define AV_CODEC_CAP_DR1
Codec uses get_buffer() for allocating buffers and supports custom allocators.
Definition: avcodec.h:956

Definition at line 359 of file eatgv.c.