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 "codec_internal.h"
#include "decode.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, AVFrame *frame, int *got_frame, AVPacket *avpkt)
static av_cold int	cmv_decode_end (AVCodecContext *avctx)

Variables
const FFCodec	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 169 of file eacmv.c.

Referenced by cmv_decode_frame(), and tgv_decode_frame().

MVIh_TAG

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

Definition at line 170 of file eacmv.c.

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

Function Documentation

cmv_decode_init()

static av_cold int cmv_decode_init ( AVCodecContext * avctx )

static

Definition at line 46 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 60 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 73 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 92 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 131 of file eacmv.c.

Referenced by cmv_decode_frame().

cmv_decode_frame()

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

static

Definition at line 172 of file eacmv.c.

cmv_decode_end()

static av_cold int cmv_decode_end ( AVCodecContext * avctx )

static

Definition at line 225 of file eacmv.c.

Variable Documentation

ff_eacmv_decoder

const FFCodec ff_eacmv_decoder

Initial value:

= {
    .p.name         = "eacmv",
    CODEC_LONG_NAME("Electronic Arts CMV video"),
    .p.type         = AVMEDIA_TYPE_VIDEO,
    .p.id           = AV_CODEC_ID_CMV,
    .priv_data_size = sizeof(CmvContext),
    .init           = cmv_decode_init,
    .close          = cmv_decode_end,
    FF_CODEC_DECODE_CB(cmv_decode_frame),
    .p.capabilities = AV_CODEC_CAP_DR1,
    .caps_internal  = FF_CODEC_CAP_INIT_CLEANUP,
}

Definition at line 234 of file eacmv.c.