eacmv.c File Reference

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

#include "libavutil/common.h"
#include "libavutil/intreadwrite.h"
#include "libavutil/imgutils.h"
#include "avcodec.h"
#include "internal.h"

Go to the source code of this file.

Data Structures
struct	CmvContext

Macros
#define	EA_PREAMBLE_SIZE   8
#define	MVIh_TAG   MKTAG('M', 'V', 'I', 'h')

Functions
static av_cold int	cmv_decode_init (AVCodecContext *avctx)
static void	cmv_decode_intra (CmvContext *s, AVFrame *frame, const uint8_t *buf, const uint8_t *buf_end)
static void	cmv_motcomp (unsigned char *dst, ptrdiff_t dst_stride, const unsigned char *src, ptrdiff_t src_stride, int x, int y, int xoffset, int yoffset, int width, int height)
static void	cmv_decode_inter (CmvContext *s, AVFrame *frame, const uint8_t *buf, const uint8_t *buf_end)
static int	cmv_process_header (CmvContext *s, const uint8_t *buf, const uint8_t *buf_end)
static int	cmv_decode_frame (AVCodecContext *avctx, void *data, int *got_frame, AVPacket *avpkt)
static av_cold int	cmv_decode_end (AVCodecContext *avctx)

Variables
AVCodec	ff_eacmv_decoder

Detailed Description

Electronic Arts CMV 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_CMV

Definition in file eacmv.c.

Macro Definition Documentation

EA_PREAMBLE_SIZE

#define EA_PREAMBLE_SIZE   8

Definition at line 171 of file eacmv.c.

Referenced by cmv_decode_frame().

MVIh_TAG

#define MVIh_TAG   MKTAG('M', 'V', 'I', 'h')

Definition at line 172 of file eacmv.c.

Referenced by cmv_decode_frame().

Function Documentation

cmv_decode_init()

static av_cold int cmv_decode_init ( AVCodecContext *  avctx )

static

Definition at line 45 of file eacmv.c.

cmv_decode_intra()

static void cmv_decode_intra ( CmvContext *  s, AVFrame *  frame, const uint8_t *  buf, const uint8_t *  buf_end  )

static

Definition at line 62 of file eacmv.c.

Referenced by cmv_decode_frame().

cmv_motcomp()

static void cmv_motcomp ( unsigned char *  dst, ptrdiff_t  dst_stride, const unsigned char *  src, ptrdiff_t  src_stride, int  x, int  y, int  xoffset, int  yoffset, int  width, int  height  )

static

Definition at line 75 of file eacmv.c.

Referenced by cmv_decode_inter().

cmv_decode_inter()

static void cmv_decode_inter ( CmvContext *  s, AVFrame *  frame, const uint8_t *  buf, const uint8_t *  buf_end  )

static

Definition at line 94 of file eacmv.c.

Referenced by cmv_decode_frame().

cmv_process_header()

static int cmv_process_header ( CmvContext *  s, const uint8_t *  buf, const uint8_t *  buf_end  )

static

Definition at line 133 of file eacmv.c.

Referenced by cmv_decode_frame().

cmv_decode_frame()

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

static

Definition at line 174 of file eacmv.c.

cmv_decode_end()

static av_cold int cmv_decode_end ( AVCodecContext *  avctx )

static

Definition at line 227 of file eacmv.c.

Variable Documentation

ff_eacmv_decoder

AVCodec ff_eacmv_decoder

Initial value:

= {
    .name           = "eacmv",
    .long_name      = NULL_IF_CONFIG_SMALL("Electronic Arts CMV video"),
    .type           = AVMEDIA_TYPE_VIDEO,
    .id             = AV_CODEC_ID_CMV,
    .priv_data_size = sizeof(CmvContext),
    .init           = cmv_decode_init,
    .close          = cmv_decode_end,
    .decode         = cmv_decode_frame,
    .capabilities   = AV_CODEC_CAP_DR1,
}

Definition at line 236 of file eacmv.c.