On Mon, Mar 25, 2019 at 12:57 PM James E. Baird <[email protected]> wrote:
> Does anyone have any ideas on this? I am essentially trying to keep the > timestamps with 3 output the same. > > Thoughts? > > James Baird > Systems Administrator > CCR > p: (319) 734-3528 > m: (319) 775-7460 > w: www.ccr.net > > > > > -----Original Message----- > From: James E. Baird > Sent: Monday, March 11, 2019 12:24 PM > To: '[email protected]' <[email protected]> > Subject: PTS and DTS sync accross multiple output streams. > > Hello, > > I have a setup where I am transcoding live feeds from OTA broadcasts to > H264 using the Nvidia NVENC encoder. I am also transcoding the audio to > AAC. We are trying to output 3 cbr streams and various bitrates. The > problem I am running into is that the PTS and DTS on the multiple outputs > are not aligning which is critical for our use case. I am hoping there is > an easy fix to this but I have not yet been able to locate one. Any > thoughts on how to accomplish this? > > ===> Source Feed <=== > ffprobe udp://@238.224.1.5:59005 > ffprobe version N-93005-gd92f06e Copyright (c) 2007-2019 the FFmpeg > developers > built with gcc 7 (Ubuntu 7.3.0-27ubuntu1~18.04) > configuration: --prefix=/home/circle/ffmpeg_build > --pkg-config-flags=--static > --extra-cflags=-I/home/circle/ffmpeg_build/include > --extra-ldflags=-L/home/circle/ffmpeg_build/lib --extra-libs='-lpthread > -lm' --bindir=/home/circle/bin --enable-gpl --enable-libaom --enable-libass > --enable-libfdk-aac --enable-libfreetype --enable-libmp3lame > --enable-libopus --enable-libvorbis --enable-libvpx --enable-libx264 > --enable-libx265 --enable-nonfree --enable-nvenc > libavutil 56. 26.100 / 56. 26.100 > libavcodec 58. 44.100 / 58. 44.100 > libavformat 58. 26.100 / 58. 26.100 > libavdevice 58. 6.101 / 58. 6.101 > libavfilter 7. 48.100 / 7. 48.100 > libswscale 5. 4.100 / 5. 4.100 > libswresample 3. 4.100 / 3. 4.100 > libpostproc 55. 4.100 / 55. 4.100 > [mpeg2video @ 0x558e5a80fa40] Invalid frame dimensions 0x0. > Last message repeated 22 times > Input #0, mpegts, from 'udp://@238.224.1.5:59005: > Duration: N/A, start: 89037.540778, bitrate: N/A > Program 3 > Stream #0:0[0x31]: Video: mpeg2video (Main) ([2][0][0][0] / 0x0002), > yuv420p(tv, progressive), 1280x720 [SAR 1:1 DAR 16:9], Closed Captions, > 59.94 fps, 59.94 tbr, 90k tbn, 119.88 tbc > Stream #0:1[0x34](eng): Audio: ac3 ([129][0][0][0] / 0x0081), 48000 > Hz, 5.1(side), fltp, 384 kb/s > Stream #0:2[0x35](spa): Audio: ac3 ([129][0][0][0] / 0x0081), 48000 > Hz, stereo, fltp, 192 kb/s > > ===> Command I am currently running to transcode <=== > > screen -d -m ffmpeg -i 'udp://@ > 238.224.1.5:59005?fifo_size=1000000&overrun_nonfatal=1' \ > -vcodec h264_nvenc -bf:v 2 -g 120 -rc cbr -b:v 6000K -profile:v > high -level 4.0 -acodec aac -ac 2 -b:a 128k -ar 44100 -f mpegts -metadata > service_name="test6000" -metadata service_provider="test" 'udp://@ > 239.1.1.1:59001?pkt_size=1316' \ > -vcodec h264_nvenc -bf:v 2 -g 120 -rc cbr -b:v 3500K -profile:v > high -level 4.0 -acodec aac -ac 2 -b:a 128k -ar 44100 -f mpegts -metadata > service_name="test3500" -metadata service_provider="test" 'udp://@ > 239.1.1.2:59002?pkt_size=1316' \ > -vcodec h264_nvenc -bf:v 2 -g 120 -rc cbr -b:v 1500K -profile:v > high -level 4.0 -acodec aac -ac 2 -b:a 128k -ar 44100 -f mpegts -metadata > service_name="test1500" -metadata service_provider="test" 'udp://@ > 239.1.1.3:59003?pkt_size=1316' > > Did you tried -copyts on the output side? _______________________________________________ ffmpeg-user mailing list [email protected] https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email [email protected] with subject "unsubscribe".
