Function init_pts

libavformat/mux.c:383–424

}

static int init_pts(AVFormatContext *s)
{
    FFFormatContext *const si = ffformatcontext(s);

    /* init PTS generation */
    for (unsigned i = 0; i < s->nb_streams; i++) {
        AVStream *const st = s->streams[i];
        FFStream *const sti = ffstream(st);
        int64_t den = AV_NOPTS_VALUE;

        switch (st->codecpar->codec_type) {
        case AVMEDIA_TYPE_AUDIO:
            den = (int64_t)st->time_base.num * st->codecpar->sample_rate;
            break;
        case AVMEDIA_TYPE_VIDEO:
            den = (int64_t)st->time_base.num * st->time_base.den;
            break;
        default:
            break;
        }

        if (den != AV_NOPTS_VALUE) {
            if (den <= 0)
                return AVERROR_INVALIDDATA;

            frac_init(&sti->priv_pts, 0, 0, den);
        }
    }

    si->avoid_negative_ts_status = AVOID_NEGATIVE_TS_UNKNOWN;
    if (s->avoid_negative_ts < 0) {
        av_assert2(s->avoid_negative_ts == AVFMT_AVOID_NEG_TS_AUTO);
        if (s->oformat->flags & (AVFMT_TS_NEGATIVE | AVFMT_NOTIMESTAMPS)) {
            s->avoid_negative_ts = AVFMT_AVOID_NEG_TS_DISABLED;
            si->avoid_negative_ts_status = AVOID_NEGATIVE_TS_DISABLED;
        } else
            s->avoid_negative_ts = AVFMT_AVOID_NEG_TS_MAKE_NON_NEGATIVE;
    } else if (s->avoid_negative_ts == AVFMT_AVOID_NEG_TS_DISABLED)
        si->avoid_negative_ts_status = AVOID_NEGATIVE_TS_DISABLED;

    return 0;
}

static void flush_if_needed(AVFormatContext *s)
{