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Functions | Variables
wmv2dec.c File Reference
#include "avcodec.h"
#include "h263.h"
#include "internal.h"
#include "intrax8.h"
#include "mathops.h"
#include "mpegutils.h"
#include "mpegvideo.h"
#include "msmpeg4.h"
#include "msmpeg4data.h"
#include "wmv2.h"

Go to the source code of this file.

Functions

static void parse_mb_skip (Wmv2Context *w)
 
static int decode_ext_header (Wmv2Context *w)
 
int ff_wmv2_decode_picture_header (MpegEncContext *s)
 
int ff_wmv2_decode_secondary_picture_header (MpegEncContext *s)
 
static int wmv2_decode_motion (Wmv2Context *w, int *mx_ptr, int *my_ptr)
 
static int16_t * wmv2_pred_motion (Wmv2Context *w, int *px, int *py)
 
static int wmv2_decode_inter_block (Wmv2Context *w, int16_t *block, int n, int cbp)
 
int ff_wmv2_decode_mb (MpegEncContext *s, int16_t block[6][64])
 
static av_cold int wmv2_decode_init (AVCodecContext *avctx)
 
static av_cold int wmv2_decode_end (AVCodecContext *avctx)
 

Variables

AVCodec ff_wmv2_decoder
 

Function Documentation

static void parse_mb_skip ( Wmv2Context w)
static

Definition at line 33 of file wmv2dec.c.

Referenced by ff_wmv2_decode_secondary_picture_header().

static int decode_ext_header ( Wmv2Context w)
static

Definition at line 82 of file wmv2dec.c.

Referenced by ff_wmv2_decode_picture_header().

int ff_wmv2_decode_picture_header ( MpegEncContext s)

Definition at line 120 of file wmv2dec.c.

Referenced by ff_h263_decode_frame().

int ff_wmv2_decode_secondary_picture_header ( MpegEncContext s)

Definition at line 140 of file wmv2dec.c.

Referenced by ff_h263_decode_frame().

static int wmv2_decode_motion ( Wmv2Context w,
int *  mx_ptr,
int *  my_ptr 
)
inlinestatic

Definition at line 229 of file wmv2dec.c.

Referenced by ff_wmv2_decode_mb().

static int16_t* wmv2_pred_motion ( Wmv2Context w,
int *  px,
int *  py 
)
static

Definition at line 247 of file wmv2dec.c.

Referenced by ff_wmv2_decode_mb().

static int wmv2_decode_inter_block ( Wmv2Context w,
int16_t *  block,
int  n,
int  cbp 
)
inlinestatic

Definition at line 292 of file wmv2dec.c.

Referenced by ff_wmv2_decode_mb().

int ff_wmv2_decode_mb ( MpegEncContext s,
int16_t  block[6][64] 
)

Definition at line 332 of file wmv2dec.c.

Referenced by ff_msmpeg4_decode_init().

static av_cold int wmv2_decode_init ( AVCodecContext avctx)
static

Definition at line 451 of file wmv2dec.c.

static av_cold int wmv2_decode_end ( AVCodecContext avctx)
static

Definition at line 468 of file wmv2dec.c.

Variable Documentation

AVCodec ff_wmv2_decoder
Initial value:
= {
.name = "wmv2",
.long_name = NULL_IF_CONFIG_SMALL("Windows Media Video 8"),
.priv_data_size = sizeof(Wmv2Context),
.close = wmv2_decode_end,
.pix_fmts = (const enum AVPixelFormat[]) { AV_PIX_FMT_YUV420P,
}
static av_cold int wmv2_decode_init(AVCodecContext *avctx)
Definition: wmv2dec.c:451
static av_cold int wmv2_decode_end(AVCodecContext *avctx)
Definition: wmv2dec.c:468
static av_cold int init(AVCodecContext *avctx)
Definition: avrndec.c:35
#define CODEC_CAP_DR1
Codec uses get_buffer() for allocating buffers and supports custom allocators.
Definition: avcodec.h:794
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:175
int ff_h263_decode_frame(AVCodecContext *avctx, void *data, int *got_frame, AVPacket *avpkt)
Definition: h263dec.c:409
#define CODEC_CAP_DRAW_HORIZ_BAND
Decoder can use draw_horiz_band callback.
Definition: avcodec.h:788
static int decode(AVCodecContext *avctx, void *data, int *got_sub, AVPacket *avpkt)
Definition: ccaption_dec.c:522
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
Definition: pixfmt.h:63
AVPixelFormat
Pixel format.
Definition: pixfmt.h:61

Definition at line 476 of file wmv2dec.c.