Function transcode

fftools/ffmpeg.c:887–935

* The following code is the main loop of the file converter */

 * The following code is the main loop of the file converter
 */
static int transcode(Scheduler *sch)
{
    int ret = 0;
    int64_t timer_start, transcode_ts = 0;

    print_stream_maps();

    atomic_store(&transcode_init_done, 1);

    ret = sch_start(sch);
    if (ret < 0)
        return ret;

    if (stdin_interaction) {
        av_log(NULL, AV_LOG_INFO, "Press [q] to stop, [?] for help\n");
    }

    timer_start = av_gettime_relative();

    while (!sch_wait(sch, stats_period, &transcode_ts)) {
        int64_t cur_time= av_gettime_relative();

        if (received_nb_signals)
            break;

        /* if 'q' pressed, exits */
        if (stdin_interaction)
            if (check_keyboard_interaction(cur_time) < 0)
                break;

        /* dump report by using the output first video and audio streams */
        print_report(0, timer_start, cur_time, transcode_ts);
    }

    ret = sch_stop(sch, &transcode_ts);

    /* write the trailer if needed */
    for (int i = 0; i < nb_output_files; i++) {
        int err = of_write_trailer(output_files[i]);
        ret = err_merge(ret, err);
    }

    term_exit();

    /* dump report by using the first video and audio streams */
    print_report(1, timer_start, av_gettime_relative(), transcode_ts);

    return ret;
}

static BenchmarkTimeStamps get_benchmark_time_stamps(void)
{