C++ (Cpp) precalc_coefs 예제들

예제 #1

파일: vf_hqdn3d.c 프로젝트: showkit/doubango_old

static int init(AVFilterContext *ctx, const char *args)
{
    HQDN3DContext *hqdn3d = ctx->priv;
    double lum_spac, lum_tmp, chrom_spac, chrom_tmp;
    double param1, param2, param3, param4;

    lum_spac   = PARAM1_DEFAULT;
    chrom_spac = PARAM2_DEFAULT;
    lum_tmp    = PARAM3_DEFAULT;
    chrom_tmp  = lum_tmp * chrom_spac / lum_spac;

    if (args) {
        switch (sscanf(args, "%lf:%lf:%lf:%lf",
                       &param1, &param2, &param3, &param4)) {
        case 1:
            lum_spac   = param1;
            chrom_spac = PARAM2_DEFAULT * param1 / PARAM1_DEFAULT;
            lum_tmp    = PARAM3_DEFAULT * param1 / PARAM1_DEFAULT;
            chrom_tmp  = lum_tmp * chrom_spac / lum_spac;
            break;
        case 2:
            lum_spac   = param1;
            chrom_spac = param2;
            lum_tmp    = PARAM3_DEFAULT * param1 / PARAM1_DEFAULT;
            chrom_tmp  = lum_tmp * chrom_spac / lum_spac;
            break;
        case 3:
            lum_spac   = param1;
            chrom_spac = param2;
            lum_tmp    = param3;
            chrom_tmp  = lum_tmp * chrom_spac / lum_spac;
            break;
        case 4:
            lum_spac   = param1;
            chrom_spac = param2;
            lum_tmp    = param3;
            chrom_tmp  = param4;
            break;
        }
    }

    av_log(ctx, AV_LOG_VERBOSE, "ls:%lf cs:%lf lt:%lf ct:%lf\n",
           lum_spac, chrom_spac, lum_tmp, chrom_tmp);
    if (lum_spac < 0 || chrom_spac < 0 || isnan(chrom_tmp)) {
        av_log(ctx, AV_LOG_ERROR,
               "Invalid negative value for luma or chroma spatial strength, "
               "or resulting value for chroma temporal strength is nan.\n");
        return AVERROR(EINVAL);
    }

    precalc_coefs(hqdn3d->coefs[0], lum_spac);
    precalc_coefs(hqdn3d->coefs[1], lum_tmp);
    precalc_coefs(hqdn3d->coefs[2], chrom_spac);
    precalc_coefs(hqdn3d->coefs[3], chrom_tmp);

    return 0;
}

예제 #2

파일: vf_hqdn3d.c 프로젝트: dotscreen/FFmpeg

static int config_input(AVFilterLink *inlink)
{
    HQDN3DContext *hqdn3d = inlink->dst->priv;
    int i;

    hqdn3d->hsub = av_pix_fmt_descriptors[inlink->format].log2_chroma_w;
    hqdn3d->vsub = av_pix_fmt_descriptors[inlink->format].log2_chroma_h;
    hqdn3d->depth = av_pix_fmt_descriptors[inlink->format].comp[0].depth_minus1+1;

    hqdn3d->line = av_malloc(inlink->w * sizeof(*hqdn3d->line));
    if (!hqdn3d->line)
        return AVERROR(ENOMEM);

    for (i = 0; i < 4; i++) {
        hqdn3d->coefs[i] = precalc_coefs(hqdn3d->strength[i], hqdn3d->depth);
        if (!hqdn3d->coefs[i])
            return AVERROR(ENOMEM);
    }

#if HAVE_YASM
    hqdn3d->denoise_row[ 8] = ff_hqdn3d_row_8_x86;
    hqdn3d->denoise_row[ 9] = ff_hqdn3d_row_9_x86;
    hqdn3d->denoise_row[10] = ff_hqdn3d_row_10_x86;
    hqdn3d->denoise_row[16] = ff_hqdn3d_row_16_x86;
#endif

    return 0;
}

예제 #3

파일: vf_hqdn3d.c 프로젝트: ephemeral2eternity/ffmpeg

static int config_input(AVFilterLink *inlink)
{
    HQDN3DContext *hqdn3d = inlink->dst->priv;
    const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
    int i;

    hqdn3d->hsub  = desc->log2_chroma_w;
    hqdn3d->vsub  = desc->log2_chroma_h;
    hqdn3d->depth = desc->comp[0].depth_minus1+1;

    hqdn3d->line = av_malloc(inlink->w * sizeof(*hqdn3d->line));
    if (!hqdn3d->line)
        return AVERROR(ENOMEM);

    for (i = 0; i < 4; i++) {
        hqdn3d->coefs[i] = precalc_coefs(hqdn3d->strength[i], hqdn3d->depth);
        if (!hqdn3d->coefs[i])
            return AVERROR(ENOMEM);
    }

    if (ARCH_X86)
        ff_hqdn3d_init_x86(hqdn3d);

    return 0;
}

예제 #4

파일: vf_hqdn3d.c 프로젝트: Crawping/chromium_extract

static int config_input(AVFilterLink *inlink)
{
    HQDN3DContext *s = inlink->dst->priv;
    const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
    int i;

    uninit(inlink->dst);

    s->hsub  = desc->log2_chroma_w;
    s->vsub  = desc->log2_chroma_h;
    s->depth = desc->comp[0].depth;

    s->line = av_malloc_array(inlink->w, sizeof(*s->line));
    if (!s->line)
        return AVERROR(ENOMEM);

    for (i = 0; i < 4; i++) {
        s->coefs[i] = precalc_coefs(s->strength[i], s->depth);
        if (!s->coefs[i])
            return AVERROR(ENOMEM);
    }

    if (ARCH_X86)
        ff_hqdn3d_init_x86(s);

    return 0;
}