Hi, I need to create a hls manifest using ffmpeg. What's important is I need to insert webvtt subtitles into the manifest.
I need to create a vod content. So I am having a MP4 movie file and webvtt file having subtitles for full movie. Can someone tell me if ffmpeg can do the job? If yes, can you please let me know what is the command that I need to use? Regards, Vikram On 29-May-2018 11:42 PM, "Felix Östh" <[email protected]> wrote: I'm using C# to initiate ffmpeg. I've a onvif bridge server for a CCTV VMS and I'm building a application to enable the user to livestream any CCTV camera to YouTube. The rtsp stream to the camera looks like this: rtsp://onvif:bridge@localhost:554/live/xxxxx-xxxguidtocameraxxx-xxxxx I'm new to ffmpeg and I'm using this arg: -f lavfi -i anullsrc -rtsp_transport udp -i {camerastreamurl} -tune zerolatency -vcodec libx264 -pix_fmt + -c:v copy -c:a aac -strict experimental -f flv rtmp://x.rtmp.youtube.com/live2/{streamkey} <http://x.rtmp.youtube.com/live2/%7Bstreamkey%7D> -loglevel debug It seems like ffmpeg isn't finding the camera stream, only the fake audio one. It just freezes. This is the result of the debug log: ffmpeg version N-91172-gebf85d3190 Copyright (c) 2000-2018 the FFmpeg developers built with gcc 7.3.0 (GCC) configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-bzlib --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libmfx --enable-amf --enable-ffnvcodec --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth libavutil 56. 18.102 / 56. 18.102 libavcodec 58. 19.104 / 58. 19.104 libavformat 58. 17.100 / 58. 17.100 libavdevice 58. 4.100 / 58. 4.100 libavfilter 7. 24.100 / 7. 24.100 libswscale 5. 2.100 / 5. 2.100 libswresample 3. 2.100 / 3. 2.100 libpostproc 55. 2.100 / 55. 2.100 Splitting the commandline. Reading option '-f' ... matched as option 'f' (force format) with argument 'lavfi'. Reading option '-i' ... matched as input url with argument 'anullsrc'. Reading option '-rtsp_transport' ... matched as AVOption 'rtsp_transport' with argument 'udp'. Reading option '-i' ... matched as input url with argument 'rtsp://onvif:bridge@localhost :554/live/41cf4f34-e137-4559-8278-47d912c64c5b'. Reading option '-tune' ... matched as AVOption 'tune' with argument 'zerolatency'. Reading option '-vcodec' ... matched as option 'vcodec' (force video codec ('copy' to copy stream)) with argument 'libx264'. Reading option '-pix_fmt' ... matched as option 'pix_fmt' (set pixel format) with argument '+'. Reading option '-c:v' ... matched as option 'c' (codec name) with argument 'copy'. Reading option '-c:a' ... matched as option 'c' (codec name) with argument 'aac'. Reading option '-strict' ...Routing option strict to both codec and muxer layer matched as AVOption 'strict' with argument 'experimental'. Reading option '-f' ... matched as option 'f' (force format) with argument 'flv'. Reading option 'rtmp://x.rtmp.youtube.com/live2/xxxxxxxx' ... matched as output url. Reading option '-loglevel' ... matched as option 'loglevel' (set logging level) with argument 'debug'. Finished splitting the commandline. Parsing a group of options: global . Applying option loglevel (set logging level) with argument debug. Successfully parsed a group of options. Parsing a group of options: input url anullsrc. Applying option f (force format) with argument lavfi. Successfully parsed a group of options. Opening an input file: anullsrc. detected 8 logical cores [AVFilterGraph @ 0000027a34bad7c0] query_formats: 2 queried, 3 merged, 0 already done, 0 delayed [Parsed_anullsrc_0 @ 0000027a34badb80] sample_rate:44100 channel_layout:'stereo' nb_samples:1024 [lavfi @ 0000027a34babc80] All info found Input #0, lavfi, from 'anullsrc': Duration: N/A, start: 0.000000, bitrate: 705 kb/s Stream #0:0, 1, 1/44100: Audio: pcm_u8, 44100 Hz, stereo, u8, 705 kb/s Successfully opened the file. Parsing a group of options: input url rtsp://onvif:bridge@localhost :554/live/41cf4f34-e137-4559-8278-47d912c64c5b. Successfully parsed a group of options. Opening an input file: rtsp://onvif:bridge@localhost :554/live/41cf4f34-e137-4559-8278-47d912c64c5b. [tcp @ 0000027a34bb5980] No default whitelist set I've no idea how to proceed or troubleshoot the input stream. Help? // Felix _______________________________________________ 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".
