All right, here’s a detailed presentation of what’s happening : First of all, everything is on local. I am using the default Mac OS apache server
- I launch a process that listens on port 5555 and segments incoming media for deployment using HTTP Live Streaming with : mediastreamsegmenter -f /Library/WebServer/Documents/live 127.0.0.1:5555 In theory, when receiving an input file, the segmenter should generate a playlist .m3u8 and create subsequent .aac files (because we are dealing only with audio) - Then, I **try** to wrap the audio in a MPEG-2 transport stream and send it over UDP to port 5555 with the following command (on a different terminal tab) : ffmpeg -re -i test.aac -vcodec copy -vbsf h264_mp4toannexb -acodec copy -f mpegts udp://127.0.0.1:5555 At this point, here’s what happens : - on the segmenter tab : Mar 9 2018 00:59:49.627: audio pid set at 100 Mar 9 2018 00:59:49.928: audio pid change to 100 Mar 9 2018 00:59:50.396: audio pid change to 100 Mar 9 2018 00:59:50.718: audio pid change to 100 And so on … (same prompt) - on the ffmpeg tab : [aac @ 0x7fd242009400] Estimating duration from bitrate, this may be inaccurate Input #0, aac, from 'test.aac': Duration: 00:01:08.37, bitrate: 139 kb/s Stream #0:0: Audio: aac (LC), 44100 Hz, stereo, fltp, 139 kb/s [mpegts @ 0x7fd24200a000] frame size not set Output #0, mpegts, to 'udp://127.0.0.1:5555': Metadata: encoder : Lavf57.83.100 Stream #0:0: Audio: aac (LC), 44100 Hz, stereo, fltp, 139 kb/s Stream mapping: Stream #0:0 -> #0:0 (copy) Press [q] to stop, [?] for help size= 75kB time=00:00:04.06 bitrate= 151.0kbits/s speed= 1x At this point, there should be a .m3u8 playlist file under /Library/WebServer/Documents/live and appropriate .aac files. But it’s not the case. Eventually, the ffmpeg tab will return this : video:0kB audio:1165kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 12.020084% And the segmenter tab will return : Mar 9 2018 01:02:00.582: Warning: no data received for 0.5 seconds. Mar 9 2018 01:02:01.083: Warning: no data received for 1.0 seconds. Mar 9 2018 01:02:01.583: Warning: no data received for 1.5 seconds. Mar 9 2018 01:02:02.084: Warning: no data received for 2.0 seconds. Mar 9 2018 01:02:02.589: Warning: no data received for 2.5 seconds. Mar 9 2018 01:02:03.090: Warning: no data received for 3.0 seconds. Mar 9 2018 01:02:03.591: Warning: no data received for 3.5 seconds. Mar 9 2018 01:02:04.095: Warning: no data received for 4.0 seconds. But still no files were created. I know that the ffmpeg command is not write because it applies to video files, but I can’t come up with an equivalent command for audio only! Thanks for your help, Pierre > On 8 Mar 2018, at 16:17, Moritz Barsnick <barsn...@gmx.net> wrote: > > On Thu, Mar 08, 2018 at 14:25:54 +0000, Pierre Pasquet wrote: >> Not sure to identify what is missing. This command works for a .m4v file and >> doesn’t for a .aac file located in the same directory. > > As Carl Eugen tried to point out: What is missing is that you provide > your actual (non-working) command line and its complete, uncut console > output. These provide a lot of valuable information, and will help to > analyze your issue. > > Cheers, > Moritz > _______________________________________________ > ffmpeg-user mailing list > ffmpeg-user@ffmpeg.org > http://ffmpeg.org/mailman/listinfo/ffmpeg-user > > To unsubscribe, visit link above, or email > ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe". _______________________________________________ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".