vp3.c File Reference

On2 VP3 Video Decoder. More...

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "libavutil/imgutils.h"
#include "avcodec.h"
#include "get_bits.h"
#include "hpeldsp.h"
#include "internal.h"
#include "mathops.h"
#include "thread.h"
#include "videodsp.h"
#include "vp3data.h"
#include "vp3dsp.h"
#include "xiph.h"

Classes
struct	Vp3Fragment
struct	Vp3DecodeContext

Macros
#define	FRAGMENT_PIXELS   8
#define	SB_NOT_CODED   0
#define	SB_PARTIALLY_CODED   1
#define	SB_FULLY_CODED   2
#define	MAXIMUM_LONG_BIT_RUN   4129
#define	MODE_INTER_NO_MV   0
#define	MODE_INTRA   1
#define	MODE_INTER_PLUS_MV   2
#define	MODE_INTER_LAST_MV   3
#define	MODE_INTER_PRIOR_LAST   4
#define	MODE_USING_GOLDEN   5
#define	MODE_GOLDEN_MV   6
#define	MODE_INTER_FOURMV   7
#define	CODING_MODE_COUNT   8
#define	MODE_COPY   8
#define	MIN_DEQUANT_VAL   2
#define	TOKEN_EOB(eob_run)   ((eob_run) << 2)
#define	TOKEN_ZERO_RUN(coeff, zero_run)   (((coeff) * 512) + ((zero_run) << 2) + 1)
#define	TOKEN_COEFF(coeff)   (((coeff) * 4) + 2)
#define	BLOCK_X   (2 * mb_x + (k & 1))
#define	BLOCK_Y   (2 * mb_y + (k >> 1))
#define	SET_CHROMA_MODES
#define	COMPATIBLE_FRAME(x)   (compatible_frame[s->all_fragments[x].coding_method] == current_frame_type)
#define	DC_COEFF(u)   s->all_fragments[u].dc
#define	PUL   8
#define	PU   4
#define	PUR   2
#define	PL   1
#define	TRANSPOSE(x)   (((x) >> 3) | (((x) & 7) << 3))

Typedefs
typedef struct Vp3Fragment	Vp3Fragment
typedef struct Vp3DecodeContext	Vp3DecodeContext

Variables
AVCodec	ff_vp3_decoder

Detailed Description

On2 VP3 Video Decoder.

VP3 Video Decoder by Mike Melanson (mike at multimedia.cx) For more information about the VP3 coding process, visit: http://wiki.multimedia.cx/index.php?title=On2_VP3

Theora decoder by Alex Beregszaszi

Macro Definition Documentation

SET_CHROMA_MODES

#define SET_CHROMA_MODES

Value:

if (frag[s->fragment_start[1]].coding_method != MODE_COPY)                \
        frag[s->fragment_start[1]].coding_method = coding_mode;               \
    if (frag[s->fragment_start[2]].coding_method != MODE_COPY)                \
        frag[s->fragment_start[2]].coding_method = coding_mode;

Variable Documentation

ff_vp3_decoder

AVCodec ff_vp3_decoder

Initial value:

= {
    .name                  = "vp3",
    .long_name             = NULL_IF_CONFIG_SMALL("On2 VP3"),
    .type                  = AVMEDIA_TYPE_VIDEO,
    .id                    = AV_CODEC_ID_VP3,
    .priv_data_size        = sizeof(Vp3DecodeContext),
    .init                  = vp3_decode_init,
    .close                 = vp3_decode_end,
    .decode                = vp3_decode_frame,
    .capabilities          = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_DRAW_HORIZ_BAND |
                             AV_CODEC_CAP_FRAME_THREADS,
    .flush                 = vp3_decode_flush,
    .init_thread_copy      = ONLY_IF_THREADS_ENABLED(vp3_init_thread_copy),
    .update_thread_context = ONLY_IF_THREADS_ENABLED(vp3_update_thread_context),
}