Function new_stream_video

fftools/ffmpeg_mux_init.c:574–820

}

static int new_stream_video(Muxer *mux, const OptionsContext *o,
                            OutputStream *ost, int *keep_pix_fmt,
                            enum VideoSyncMethod *vsync_method)
{
    MuxStream       *ms = ms_from_ost(ost);
    AVFormatContext *oc = mux->fc;
    AVStream *st;
    const char *frame_rate = NULL, *max_frame_rate = NULL, *frame_aspect_ratio = NULL;
    int ret = 0;

    st  = ost->st;

    opt_match_per_stream_str(ost, &o->frame_rates, oc, st, &frame_rate);
    if (frame_rate && av_parse_video_rate(&ms->frame_rate, frame_rate) < 0) {
        av_log(ost, AV_LOG_FATAL, "Invalid framerate value: %s\n", frame_rate);
        return AVERROR(EINVAL);
    }

    opt_match_per_stream_str(ost, &o->max_frame_rates, oc, st, &max_frame_rate);
    if (max_frame_rate && av_parse_video_rate(&ms->max_frame_rate, max_frame_rate) < 0) {
        av_log(ost, AV_LOG_FATAL, "Invalid maximum framerate value: %s\n", max_frame_rate);
        return AVERROR(EINVAL);
    }

    if (frame_rate && max_frame_rate) {
        av_log(ost, AV_LOG_ERROR, "Only one of -fpsmax and -r can be set for a stream.\n");
        return AVERROR(EINVAL);
    }

    opt_match_per_stream_str(ost, &o->frame_aspect_ratios, oc, st, &frame_aspect_ratio);
    if (frame_aspect_ratio) {
        AVRational q;
        if (av_parse_ratio(&q, frame_aspect_ratio, 255, 0, NULL) < 0 ||
            q.num <= 0 || q.den <= 0) {
            av_log(ost, AV_LOG_FATAL, "Invalid aspect ratio: %s\n", frame_aspect_ratio);
            return AVERROR(EINVAL);
        }
        ost->frame_aspect_ratio = q;
    }

    if (ost->enc) {
        AVCodecContext *video_enc = ost->enc->enc_ctx;
        const char *p = NULL, *fps_mode = NULL;
        const char *frame_size = NULL;
        const char *frame_pix_fmt = NULL;
        const char *intra_matrix = NULL, *inter_matrix = NULL;
        const char *chroma_intra_matrix = NULL;
        int do_pass = 0;
        int i;

        opt_match_per_stream_str(ost, &o->frame_sizes, oc, st, &frame_size);
        if (frame_size) {
            ret = av_parse_video_size(&video_enc->width, &video_enc->height, frame_size);
            if (ret < 0) {
                av_log(ost, AV_LOG_FATAL, "Invalid frame size: %s.\n", frame_size);
                return AVERROR(EINVAL);
            }
        }