On Thu, May 23, 2019 at 7:14 PM Moritz Barsnick <barsn...@gmx.net> wrote:
> On Thu, May 23, 2019 at 16:51:16 +1200, Jonathan Viney wrote: > > > The NTP time from the first RTCP packet is currently extracted in > > > libavformat/rtsp.c and stored in AVFormatContext.start_time_realtime. > > > However, there is no way to access this value when using ffmpeg from > the > > > commandline. > > > > > > This patch adds an option when using an RTSP input to write the value > to a > > > file when it is received. > > Is this useful for anything? Would it be more useful in a metadata key? > (Just wondering, not critisizing.) > I agree having it transferred to a metadata key in the output would be useful. That was my first thought, but seems like it would be a larger patch and I wasn't sure if it would be able to write to the metadata for streaming formats like fragmented MP4 (which is what I'm using) because the RTCP packet arrives some time after the output metadata would have be written (from what I understand). Please correct me if I'm wrong about that. > > > + av_strlcatf(buf, sizeof(buf), "%lld", > s->start_time_realtime); > > start_time_realtime is int64_t, so the format identifier should be > '"%" PRIi64'. > Thanks - will update the patch. Regards, -Jonathan. > > Moritz > _______________________________________________ > ffmpeg-devel mailing list > ffmpeg-devel@ffmpeg.org > https://ffmpeg.org/mailman/listinfo/ffmpeg-devel > > To unsubscribe, visit link above, or email > ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe". _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".
