C++ (Cpp) av_clip_int8 Beispiele

Beispiel #1

Datei: h264_direct.c Projekt: TaoheGit/hmi_sdl_android

static int get_scale_factor(H264Context *const h, int poc, int poc1, int i)
{
    int poc0 = h->ref_list[0][i].poc;
    int td = av_clip_int8(poc1 - poc0);
    if (td == 0 || h->ref_list[0][i].long_ref) {
        return 256;
    } else {
        int tb = av_clip_int8(poc - poc0);
        int tx = (16384 + (FFABS(td) >> 1)) / td;
        return av_clip_intp2((tb * tx + 32) >> 6, 10);
    }
}

Beispiel #2

Datei: h264_direct.c Projekt: Hero2000/CainCamera

static int get_scale_factor(H264SliceContext *sl,
                            int poc, int poc1, int i)
{
    int poc0 = sl->ref_list[0][i].poc;
    int64_t pocdiff = poc1 - (int64_t)poc0;
    int td = av_clip_int8(pocdiff);

    if (pocdiff != (int)pocdiff)
        avpriv_request_sample(sl->h264->avctx, "pocdiff overflow\n");

    if (td == 0 || sl->ref_list[0][i].parent->long_ref) {
        return 256;
    } else {
        int64_t pocdiff0 = poc - (int64_t)poc0;
        int tb = av_clip_int8(pocdiff0);
        int tx = (16384 + (FFABS(td) >> 1)) / td;

        if (pocdiff0 != (int)pocdiff0)
            av_log(sl->h264->avctx, AV_LOG_DEBUG, "pocdiff0 overflow\n");

        return av_clip_intp2((tb * tx + 32) >> 6, 10);
    }
}