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  • Committer: Package Import Robot
  • Author(s): Reinhard Tartler
  • Date: 2012-01-12 22:23:28 UTC
  • mfrom: (0.4.7 sid)
  • mto: This revision was merged to the branch mainline in revision 76.
  • Revision ID: package-import@ubuntu.com-20120112222328-8jqdyodym3p84ygu
Tags: 2:1.0~rc4.dfsg1+svn34540-1
* New upstream snapshot
* upload to unstable

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ffmpeg/libavcodec/vp5.c
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/**
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 * @file
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 * VP5 compatible video decoder
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 *
 
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/*
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 * Copyright (C) 2006  Aurelien Jacobs <aurel@gnuage.org>
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 *
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 * This file is part of Libav.
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 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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 */
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/**
 
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 * @file
 
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 * VP5 compatible video decoder
 
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 */
 
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#include <stdlib.h>
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#include <string.h>
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                model->vector_pdv[comp][node] = vp56_rac_gets_nn(c, 7);
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}
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static void vp5_parse_coeff_models(VP56Context *s)
 
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static int vp5_parse_coeff_models(VP56Context *s)
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{
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    VP56RangeCoder *c = &s->c;
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    VP56Model *model = s->modelp;
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                for (ctx=0; ctx<6; ctx++)
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                    for (node=0; node<5; node++)
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                        model->coeff_acct[pt][ct][cg][ctx][node] = av_clip(((model->coeff_ract[pt][ct][cg][node] * vp5_ract_lc[ct][cg][node][ctx][0] + 128) >> 8) + vp5_ract_lc[ct][cg][node][ctx][1], 1, 254);
 
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    return 0;
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}
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static void vp5_parse_coeff(VP56Context *s)
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        model1 = model->coeff_dccv[pt];
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        model2 = model->coeff_dcct[pt][ctx];
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        for (coeff_idx=0; coeff_idx<64; ) {
 
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        coeff_idx = 0;
 
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        for (;;) {
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            if (vp56_rac_get_prob(c, model2[0])) {
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                if (vp56_rac_get_prob(c, model2[2])) {
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                    if (vp56_rac_get_prob(c, model2[3])) {
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                ct = 0;
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                s->coeff_ctx[vp56_b6to4[b]][coeff_idx] = 0;
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            }
 
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            coeff_idx++;
 
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            if (coeff_idx >= 64)
 
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                break;
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            cg = vp5_coeff_groups[++coeff_idx];
 
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            cg = vp5_coeff_groups[coeff_idx];
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            ctx = s->coeff_ctx[vp56_b6to4[b]][coeff_idx];
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            model1 = model->coeff_ract[pt][ct][cg];
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            model2 = cg > 2 ? model1 : model->coeff_acct[pt][ct][cg][ctx];
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}
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AVCodec ff_vp5_decoder = {
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    "vp5",
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    AVMEDIA_TYPE_VIDEO,
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    CODEC_ID_VP5,
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    sizeof(VP56Context),
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    vp5_decode_init,
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    NULL,
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    ff_vp56_free,
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    ff_vp56_decode_frame,
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    CODEC_CAP_DR1,
 
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    .name           = "vp5",
 
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    .type           = AVMEDIA_TYPE_VIDEO,
 
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    .id             = CODEC_ID_VP5,
 
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    .priv_data_size = sizeof(VP56Context),
 
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    .init           = vp5_decode_init,
 
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    .close          = ff_vp56_free,
 
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    .decode         = ff_vp56_decode_frame,
 
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    .capabilities   = CODEC_CAP_DR1,
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    .long_name = NULL_IF_CONFIG_SMALL("On2 VP5"),
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};