Function segment_mux_init

libavformat/segment.c:149–187

}

static int segment_mux_init(AVFormatContext *s)
{
    SegmentContext *seg = s->priv_data;
    AVFormatContext *oc;
    int i;
    int ret;

    ret = avformat_alloc_output_context2(&seg->avf, seg->oformat, NULL, NULL);
    if (ret < 0)
        return ret;
    oc = seg->avf;

    oc->interrupt_callback = s->interrupt_callback;
    oc->max_delay          = s->max_delay;
    av_dict_copy(&oc->metadata, s->metadata, 0);
    oc->opaque             = s->opaque;
    oc->io_close2          = s->io_close2;
    oc->io_open            = s->io_open;
    oc->flags              = s->flags;

    for (i = 0; i < s->nb_streams; i++) {
        AVStream *st, *ist = s->streams[i];
        AVCodecParameters *ipar = ist->codecpar, *opar;

        st = ff_stream_clone(oc, ist);
        if (!st)
            return AVERROR(ENOMEM);
        opar = st->codecpar;
        if (!oc->oformat->codec_tag ||
            av_codec_get_id (oc->oformat->codec_tag, ipar->codec_tag) == opar->codec_id ||
            av_codec_get_tag(oc->oformat->codec_tag, ipar->codec_id) <= 0) {
            opar->codec_tag = ipar->codec_tag;
        } else {
            opar->codec_tag = 0;
        }
    }

    return 0;
}

static int set_segment_filename(AVFormatContext *s)
{