On 11/21/16, Gabor Alsecz <[email protected]> wrote: > Dear All, > > I have an issue when encoding HLS stream from an RTSP mjpeg video stream + > USB audio via dshow. > At the beginning audio & video are in sync but slowly but steadily the > sound drifting out of sync. Video seems faster, approximately each 10 > minutes the audio late +1 second.
I wonder if the RTSP has timestamps that are "getting out of sync" if you want to see if the show stuff is getting out of sync, run with "-loglevel debug" and it spits out tons of timing info. Anyway there are some "vsync" options see if either help. > I am using the following command: > ffmpeg -y -loglevel info -f dshow -i audio="Microphone (Trust Gaming > Microphone)" -pix_fmt bgr24 -video_size 1280x720 -framerate 25 -f rawvideo > -i "-" -b:a 160k -ar 44100 -pix_fmt yuv420p -profile:v baseline -r 25 -g > 50 -hls_time 5 -hls_list_size 0 -hls_segment_filename file%03d.ts -f hls > out.m3u8 > > > As you can see, this is rawvideo, feeding by memory bitmap "images" via > piping (from C#) + capture raw audio via dshow. > > Any idea what/how to solve this issue? Thanks! > > > br, > Gabor > _______________________________________________ > ffmpeg-user mailing list > [email protected] > http://ffmpeg.org/mailman/listinfo/ffmpeg-user > > To unsubscribe, visit link above, or email > [email protected] with subject "unsubscribe". _______________________________________________ ffmpeg-user mailing list [email protected] http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email [email protected] with subject "unsubscribe".
