msmpeg4dec.c File Reference

#include "libavutil/thread.h"
#include "avcodec.h"
#include "codec_internal.h"
#include "mpegutils.h"
#include "mpegvideo.h"
#include "mpegvideodec.h"
#include "msmpeg4.h"
#include "msmpeg4dec.h"
#include "libavutil/imgutils.h"
#include "h263.h"
#include "h263data.h"
#include "h263dec.h"
#include "mpeg4videodec.h"
#include "msmpeg4data.h"
#include "msmpeg4_vc1_data.h"

Go to the source code of this file.

Macros
#define	V2_INTRA_CBPC_VLC_BITS   3
#define	V2_MB_TYPE_VLC_BITS   7
#define	MV_VLC_BITS   9
#define	TEX_VLC_BITS   9
#define	DEFAULT_INTER_INDEX   3

Functions
static int	msmpeg4v1_pred_dc (MpegEncContext *s, int n, int32_t **dc_val_ptr)
static int	msmpeg4v2_decode_motion (H263DecContext *const h, int pred, int f_code)
static int	msmpeg4v12_decode_mb (H263DecContext *const h)
static int	msmpeg4v34_decode_mb (H263DecContext *const h)
static av_cold void	msmpeg4_decode_init_static (void)
static int	msmpeg4_decode_picture_header (H263DecContext *const h)
int	ff_msmpeg4_decode_ext_header (H263DecContext *const h, int buf_size)
static int	msmpeg4_decode_dc (MSMP4DecContext *const ms, int n, int *dir_ptr)
int	ff_msmpeg4_decode_block (MSMP4DecContext *const ms, int16_t *block, int n, int coded, const uint8_t *scan_table)
void	ff_msmpeg4_decode_motion (MSMP4DecContext *const ms, int *mx_ptr, int *my_ptr)
av_cold int	ff_msmpeg4_decode_init (AVCodecContext *avctx)

Variables
static const VLCElem *	mv_tables [2]
const VLCElem *	ff_mb_non_intra_vlc [4]
static VLCElem	v2_dc_lum_vlc [1472]
static VLCElem	v2_dc_chroma_vlc [1506]
static VLCElem	v2_intra_cbpc_vlc [8]
static VLCElem	v2_mb_type_vlc [128]
VLCElem	ff_inter_intra_vlc [8]
const FFCodec	ff_msmpeg4v1_decoder
const FFCodec	ff_msmpeg4v2_decoder
const FFCodec	ff_msmpeg4v3_decoder
const FFCodec	ff_wmv1_decoder

Macro Definition Documentation

V2_INTRA_CBPC_VLC_BITS

#define V2_INTRA_CBPC_VLC_BITS   3

Definition at line 42 of file msmpeg4dec.c.

V2_MB_TYPE_VLC_BITS

#define V2_MB_TYPE_VLC_BITS   7

Definition at line 43 of file msmpeg4dec.c.

MV_VLC_BITS

#define MV_VLC_BITS   9

Definition at line 44 of file msmpeg4dec.c.

TEX_VLC_BITS

#define TEX_VLC_BITS   9

Definition at line 45 of file msmpeg4dec.c.

DEFAULT_INTER_INDEX

#define DEFAULT_INTER_INDEX   3

Definition at line 47 of file msmpeg4dec.c.

Function Documentation

msmpeg4v1_pred_dc()

static int msmpeg4v1_pred_dc ( MpegEncContext *  s, int  n, int32_t **  dc_val_ptr  )

inlinestatic

Definition at line 51 of file msmpeg4dec.c.

Referenced by msmpeg4_decode_dc().

msmpeg4v2_decode_motion()

static int msmpeg4v2_decode_motion ( H263DecContext *const  h, int  pred, int  f_code  )

static

Definition at line 77 of file msmpeg4dec.c.

Referenced by msmpeg4v12_decode_mb().

msmpeg4v12_decode_mb()

static int msmpeg4v12_decode_mb ( H263DecContext *const  h )

static

Definition at line 109 of file msmpeg4dec.c.

Referenced by ff_msmpeg4_decode_init().

msmpeg4v34_decode_mb()

static int msmpeg4v34_decode_mb ( H263DecContext *const  h )

static

Definition at line 216 of file msmpeg4dec.c.

Referenced by ff_msmpeg4_decode_init().

msmpeg4_decode_init_static()

static av_cold void msmpeg4_decode_init_static ( void  )

static

Definition at line 309 of file msmpeg4dec.c.

Referenced by ff_msmpeg4_decode_init().

msmpeg4_decode_picture_header()

static int msmpeg4_decode_picture_header ( H263DecContext *const  h )

static

Definition at line 363 of file msmpeg4dec.c.

Referenced by ff_msmpeg4_decode_init().

ff_msmpeg4_decode_ext_header()

int ff_msmpeg4_decode_ext_header	(	H263DecContext *const	h,
		int	buf_size
	)

Definition at line 529 of file msmpeg4dec.c.

Referenced by ff_h263_decode_frame(), and msmpeg4_decode_picture_header().

msmpeg4_decode_dc()

static int msmpeg4_decode_dc ( MSMP4DecContext *const  ms, int  n, int *  dir_ptr  )

static

Definition at line 558 of file msmpeg4dec.c.

Referenced by ff_msmpeg4_decode_block().

ff_msmpeg4_decode_block()

int ff_msmpeg4_decode_block	(	MSMP4DecContext *const	ms,
		int16_t *	block,
		int	n,
		int	coded,
		const uint8_t *	scan_table
	)

Definition at line 612 of file msmpeg4dec.c.

Referenced by msmpeg4v12_decode_mb(), msmpeg4v34_decode_mb(), wmv2_decode_inter_block(), and wmv2_decode_mb().

ff_msmpeg4_decode_motion()

void ff_msmpeg4_decode_motion	(	MSMP4DecContext *const	ms,
		int *	mx_ptr,
		int *	my_ptr
	)

Definition at line 802 of file msmpeg4dec.c.

Referenced by msmpeg4v34_decode_mb(), and wmv2_decode_motion().

ff_msmpeg4_decode_init()

av_cold int ff_msmpeg4_decode_init

(

AVCodecContext *

avctx

)

Definition at line 834 of file msmpeg4dec.c.

Referenced by wmv2_decode_init().

Variable Documentation

mv_tables

const VLCElem* mv_tables[2]

static

Definition at line 49 of file msmpeg4dec.c.

Referenced by ff_msmpeg4_decode_motion(), interlaced_search(), and msmpeg4_decode_init_static().

ff_mb_non_intra_vlc

const VLCElem* ff_mb_non_intra_vlc[4]

Definition at line 69 of file msmpeg4dec.c.

Referenced by msmpeg4_decode_init_static(), msmpeg4v34_decode_mb(), and wmv2_decode_mb().

v2_dc_lum_vlc

VLCElem v2_dc_lum_vlc[1472]

static

Definition at line 70 of file msmpeg4dec.c.

Referenced by msmpeg4_decode_dc(), and msmpeg4_decode_init_static().

v2_dc_chroma_vlc

VLCElem v2_dc_chroma_vlc[1506]

static

Definition at line 71 of file msmpeg4dec.c.

Referenced by msmpeg4_decode_dc(), and msmpeg4_decode_init_static().

v2_intra_cbpc_vlc

VLCElem v2_intra_cbpc_vlc[8]

static

Definition at line 72 of file msmpeg4dec.c.

Referenced by msmpeg4_decode_init_static(), and msmpeg4v12_decode_mb().

v2_mb_type_vlc

VLCElem v2_mb_type_vlc[128]

static

Definition at line 73 of file msmpeg4dec.c.

Referenced by msmpeg4_decode_init_static(), and msmpeg4v12_decode_mb().

ff_inter_intra_vlc

VLCElem ff_inter_intra_vlc[8]

Definition at line 74 of file msmpeg4dec.c.

Referenced by msmpeg4_decode_init_static(), msmpeg4v34_decode_mb(), and wmv2_decode_mb().

ff_msmpeg4v1_decoder

const FFCodec ff_msmpeg4v1_decoder

Initial value:

= {
    .p.name         = "msmpeg4v1",
    CODEC_LONG_NAME("MPEG-4 part 2 Microsoft variant version 1"),
    .p.type         = AVMEDIA_TYPE_VIDEO,
    .p.id           = AV_CODEC_ID_MSMPEG4V1,
    .priv_data_size = sizeof(MSMP4DecContext),
    .init           = ff_msmpeg4_decode_init,
    FF_CODEC_DECODE_CB(ff_h263_decode_frame),
    .close          = ff_mpv_decode_close,
    .p.capabilities = AV_CODEC_CAP_DRAW_HORIZ_BAND | AV_CODEC_CAP_DR1,
    .caps_internal  = FF_CODEC_CAP_INIT_CLEANUP |
                      FF_CODEC_CAP_SKIP_FRAME_FILL_PARAM,
    .p.max_lowres   = 3,
}

Definition at line 876 of file msmpeg4dec.c.

ff_msmpeg4v2_decoder

const FFCodec ff_msmpeg4v2_decoder

Initial value:

= {
    .p.name         = "msmpeg4v2",
    CODEC_LONG_NAME("MPEG-4 part 2 Microsoft variant version 2"),
    .p.type         = AVMEDIA_TYPE_VIDEO,
    .p.id           = AV_CODEC_ID_MSMPEG4V2,
    .priv_data_size = sizeof(MSMP4DecContext),
    .init           = ff_msmpeg4_decode_init,
    FF_CODEC_DECODE_CB(ff_h263_decode_frame),
    .close          = ff_mpv_decode_close,
    .p.capabilities = AV_CODEC_CAP_DRAW_HORIZ_BAND | AV_CODEC_CAP_DR1,
    .caps_internal  = FF_CODEC_CAP_INIT_CLEANUP |
                      FF_CODEC_CAP_SKIP_FRAME_FILL_PARAM,
    .p.max_lowres   = 3,
}

Definition at line 891 of file msmpeg4dec.c.

ff_msmpeg4v3_decoder

const FFCodec ff_msmpeg4v3_decoder

Initial value:

= {
    .p.name         = "msmpeg4",
    CODEC_LONG_NAME("MPEG-4 part 2 Microsoft variant version 3"),
    .p.type         = AVMEDIA_TYPE_VIDEO,
    .p.id           = AV_CODEC_ID_MSMPEG4V3,
    .priv_data_size = sizeof(MSMP4DecContext),
    .init           = ff_msmpeg4_decode_init,
    FF_CODEC_DECODE_CB(ff_h263_decode_frame),
    .close          = ff_mpv_decode_close,
    .p.capabilities = AV_CODEC_CAP_DRAW_HORIZ_BAND | AV_CODEC_CAP_DR1,
    .caps_internal  = FF_CODEC_CAP_INIT_CLEANUP |
                      FF_CODEC_CAP_SKIP_FRAME_FILL_PARAM,
    .p.max_lowres   = 3,
}

Definition at line 906 of file msmpeg4dec.c.

ff_wmv1_decoder

const FFCodec ff_wmv1_decoder

Initial value:

= {
    .p.name         = "wmv1",
    CODEC_LONG_NAME("Windows Media Video 7"),
    .p.type         = AVMEDIA_TYPE_VIDEO,
    .p.id           = AV_CODEC_ID_WMV1,
    .priv_data_size = sizeof(MSMP4DecContext),
    .init           = ff_msmpeg4_decode_init,
    FF_CODEC_DECODE_CB(ff_h263_decode_frame),
    .close          = ff_mpv_decode_close,
    .p.capabilities = AV_CODEC_CAP_DRAW_HORIZ_BAND | AV_CODEC_CAP_DR1,
    .caps_internal  = FF_CODEC_CAP_INIT_CLEANUP |
                      FF_CODEC_CAP_SKIP_FRAME_FILL_PARAM,
    .p.max_lowres   = 3,
}

Definition at line 921 of file msmpeg4dec.c.