Function new_video_stream

ffmpeg.c:3186–3322

}

static void new_video_stream(AVFormatContext *oc)
{
    AVStream *st;
    AVCodecContext *video_enc;
    enum CodecID codec_id;

    st = av_new_stream(oc, oc->nb_streams);
    if (!st) {
        fprintf(stderr, "Could not alloc stream\n");
        av_exit(1);
    }
    avcodec_get_context_defaults2(st->codec, AVMEDIA_TYPE_VIDEO);
    bitstream_filters[nb_output_files][oc->nb_streams - 1]= video_bitstream_filters;
    video_bitstream_filters= NULL;

    avcodec_thread_init(st->codec, thread_count);

    video_enc = st->codec;

    if(video_codec_tag)
        video_enc->codec_tag= video_codec_tag;

    if(   (video_global_header&1)
       || (video_global_header==0 && (oc->oformat->flags & AVFMT_GLOBALHEADER))){
        video_enc->flags |= CODEC_FLAG_GLOBAL_HEADER;
        avcodec_opts[AVMEDIA_TYPE_VIDEO]->flags|= CODEC_FLAG_GLOBAL_HEADER;
    }
    if(video_global_header&2){
        video_enc->flags2 |= CODEC_FLAG2_LOCAL_HEADER;
        avcodec_opts[AVMEDIA_TYPE_VIDEO]->flags2|= CODEC_FLAG2_LOCAL_HEADER;
    }

    if (video_stream_copy) {
        st->stream_copy = 1;
        video_enc->codec_type = AVMEDIA_TYPE_VIDEO;
        video_enc->sample_aspect_ratio =
        st->sample_aspect_ratio = av_d2q(frame_aspect_ratio*frame_height/frame_width, 255);
    } else {
        const char *p;
        int i;
        AVCodec *codec;
        AVRational fps= frame_rate.num ? frame_rate : (AVRational){25,1};

        if (video_codec_name) {
            codec_id = find_codec_or_die(video_codec_name, AVMEDIA_TYPE_VIDEO, 1,
                                         video_enc->strict_std_compliance);
            codec = avcodec_find_encoder_by_name(video_codec_name);
            output_codecs[nb_ocodecs] = codec;
        } else {
            codec_id = av_guess_codec(oc->oformat, NULL, oc->filename, NULL, AVMEDIA_TYPE_VIDEO);
            codec = avcodec_find_encoder(codec_id);
        }

        video_enc->codec_id = codec_id;

        set_context_opts(video_enc, avcodec_opts[AVMEDIA_TYPE_VIDEO], AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_ENCODING_PARAM);

        if (codec && codec->supported_framerates && !force_fps)