Function segment_start

libavformat/segment.c:238–281

}

static int segment_start(AVFormatContext *s, int write_header)
{
    SegmentContext *seg = s->priv_data;
    AVFormatContext *oc = seg->avf;
    int err = 0;

    if (write_header) {
        avformat_free_context(oc);
        seg->avf = NULL;
        if ((err = segment_mux_init(s)) < 0)
            return err;
        oc = seg->avf;
    }

    seg->segment_idx++;
    if ((seg->segment_idx_wrap) && (seg->segment_idx % seg->segment_idx_wrap == 0))
        seg->segment_idx_wrap_nb++;

    if ((err = set_segment_filename(s)) < 0)
        return err;

    if ((err = s->io_open(s, &oc->pb, oc->url, AVIO_FLAG_WRITE, NULL)) < 0) {
        av_log(s, AV_LOG_ERROR, "Failed to open segment '%s'\n", oc->url);
        return err;
    }
    if (!seg->individual_header_trailer)
        oc->pb->seekable = 0;

    if (oc->oformat->priv_class && oc->priv_data)
        av_opt_set(oc->priv_data, "mpegts_flags", "+resend_headers", 0);

    if (write_header) {
        AVDictionary *options = NULL;
        av_dict_copy(&options, seg->format_options, 0);
        av_dict_set(&options, "fflags", "-autobsf", 0);
        err = avformat_write_header(oc, &options);
        av_dict_free(&options);
        if (err < 0)
            return err;
    }

    seg->segment_frame_count = 0;
    return 0;
}

static int segment_list_open(AVFormatContext *s)
{