[Libav-user] av_opt_set, x264

Denis info at denisgottardello.it
Thu Dec 13 15:53:08 CET 2012


In order to reduce the latency of a live x264 video stream I have tested these rows:

                    if (pAVStreamVideo->codec->codec_id== CODEC_ID_H264) {
                        qDebug() << "CODEC_ID_H264";
                        av_opt_set(pAVFormatContext->priv_data, "preset", "veryfast", 0);
                        av_opt_set(pAVFormatContext->priv_data, "tune", "zerolatency", 0);
                        av_opt_set(pAVFormatContext->priv_data, "x264opts", "no-mbtree:sliced-threads:sync-lookahead=0", 0);
                    }

Without any effect. Is there another way for pass a parameter or must I use another api?
Regards.


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