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• AAC bitstream not in ADTS format and extradata missing

  14 août 2014, par Boehmi

  With FFMPEG, I’m sending a stream from Computer A over to Computer B, via UDP.
  This is done over a MPEGTS stream, encoded with libx264 and aac.
  Computer B takes this stream with FFMPEG and puts it into an m3u8 playlist.

  After a random time (2-35 minutes), the message

  [mpegts @ 0533f000] AAC bitstream not in ADTS format and extradata missing
  
  av_interleaved_write_frame(): Invalid data found when processing input

  appears.
  What I figures is that the receiving FFMPEG can’t read the header file of the audio part for this particular package, and since it can’t put video and audio together anymore, it stops creating the .ts files and just stops running.

  Here’s the cmdline of the receiving stream :

  ffmpeg -i udp://address -vcodec copy -acodec copy -map 0 -f segment -segment_list playlist.m3u8 -analyzeduration 100000 -probesize 100000-segment_list_flags +lis-Þcache -segment_time 8 -segment_wrap 10 out%03d.ts

  Now I need to know the answer to either one of these 2 questions :

  1) Can I put something in my commandline in order to avoid this particular problem or

  2) Can I tell FFMPEG to just ignore it for this particular message, quite possibly creating weird audio or none at all, and to simply move on to the next one ?

• FFmpeg 'setpts=PTS-STARTPTS' cannot work on Android(ARM)

  12 octobre 2017, par Jerikc XIONG

  I use the following command on Android :

  ffmpeg -loglevel 56 -i test.mp4 -vf [0:v]setpts=PTS-STARTPTS[fg] -c:a copy out.mp4 -y

  But it’s failed and I got the following logs :

  N:0 PTS:0 T:0.000000 POS:3848 INTERLACED:0 -> PTS:0 T:nan

  So i add some logs into static int filter_frame(AVFilterLink *inlink, AVFrame *frame) in the libavfilter/setpts.c :

  av_log(inlink->dst, AV_LOG_TRACE, " -> PTS%"PRId64", d:%s timebase:%f, AV_NOPTS_VALUE:%"PRId64 ", AV_NOPTS_VALUE==0?%d:, d == AV_NOPTS_VALUE?%d, TS2T:%f, :%f\n", frame->pts, d2istr(d), av_q2d(inlink->time_base), AV_NOPTS_VALUE, val == 0, d == AV_NOPTS_VALUE, d*av_q2d(inlink->time_base), (double)(0)*0.000078);

  I got the logs :

  -> PTS0, d:0 timebase:0.000011, AV_NOPTS_VALUE:-9223372036854775808, AV_NOPTS_VALUE==0?0:, d == AV_NOPTS_VALUE?0, TS2T:nan, :0.000000

  It’s weird. I always get nan by the TS2T.

  It’s OK on MacBook Pro (Retina, 13-inch, Early 2015) with 2.7 GHz Intel Core i5 when i build the same source code.

  PS :

  #define TS2T(ts, tb) ((ts) == AV_NOPTS_VALUE ? NAN : (double)(ts)*av_q2d(tb))

  I added the full log here.

• ffmpeg spawned inside NodeJS doesn't output to a url

  31 août 2020, par New Dev

  I'm trying to run ffmpeg on Google Cloud (cloud functions) and I'm trying to have it output the files to a URL (of a Google Storage).

  


  I'm spawning ffmpeg in NodeJS like so :

  


  const { spawn } = require('child_process');

spawn('ffmpeg', [
        '-i', 'input.mp4',
        // ... other arguments
        '-f', 'mp4',
        '-movflags', 'frag_keyframe+empty_moov' // needed for a URL output
        '-headers', `'Authorization: Bearer ${token}'`
        'https://storage.googleapis.com/upload/storage/v1/b/...'])


  


  The problem is the file never gets uploaded, even though ffmpeg runs and exits with code 0.

  


  The weird part is that if I run the exact same command directly from the terminal, it uploads the file.

  


  ffmpeg -i input.mp4 -f mp4 -movflags frag_keyframe+empty_moov -headers 'Authorization: Bearer XXX' 'https://storage.googleapis.com/upload/storage/v1/b/...'


  


  This, I think, eliminates the possibility of any authentication issues or anything on the server-side.

  


  I don't see any difference in the in the output (stderr).

  


  Any idea why the Node-version doesn't upload the output and doesn't report any errors ?