Im successfully transcoding a udp input MPEG2 TS stream into h264 with NVENC and multicasting it onto the network.. The last piece of the puzzle is to be able to read in the EIA-608 embedded CCs in the original video stream and re-mux into the output TS as a separate stream.
I can't seem to figure out how to do it.. I can pull out the EIA-608 captions but not simultaneously add them as a stream in the final TS file while transcoding video and copying audio. Im sure there is some way to do it. I just can't figure out how. Here is my command line for the transcode without CC: /usr/local/bin/ffmpeg -threads auto -i "udp:// 10.98.98.251:50029?fifo_size=262144&buffer_size=262144&overrun_nonfatal=1" -ss 00:00:10 -vf yadif=0:-1:0 -s hd1080 -c:v h264_nvenc -level:v 4 -profile:v high -maxrate 10000k -bf 4 -preset:v llhp -rc-lookahead 250 -rc:v ll_2pass_size -c:a copy -packetsize 1316 -avioflags direct -max_delay 0 -f mpegts udp://239.33.35.201:1234 Version info: ffmpeg version 3.3.1 Copyright (c) 2000-2017 the FFmpeg developers built with gcc 4.8.5 (GCC) 20150623 (Red Hat 4.8.5-4) configuration: --extra-libs=-ldl --extra-cflags='-I/root/sources/nvenc/Video_Codec_SDK_7.0.1/Samples/common/inc -I/root/sources/bmsdk1054/Linux/include' --enable-gpl --enable-nonfree --enable-nvenc --enable-libfdk_aac --enable-libmp3lame --enable-libvorbis --enable-libx264 --disable-libtheora --pkg-config=pkg-config --cpu=host --enable-libzvbi --enable-libass --enable-decklink --enable-libnut --enable-openssl --disable-ffserver --enable-cuda --enable-cuvid libavutil 55. 58.100 / 55. 58.100 libavcodec 57. 89.100 / 57. 89.100 libavformat 57. 71.100 / 57. 71.100 libavdevice 57. 6.100 / 57. 6.100 libavfilter 6. 82.100 / 6. 82.100 libswscale 4. 6.100 / 4. 6.100 libswresample 2. 7.100 / 2. 7.100 libpostproc 54. 5.100 / 54. 5.100 Any help would be appreciated. Thanks! _______________________________________________ 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".
