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• python ffmpeg moov atom not found Invalid data when processing input

  11 mai 2018, par Isocrates

  I have a progress that records the screen, and audio from a microphone, and then combines the video and audio recording (.mp4 and .wav) into one mkv file.

  I am using python 3.6 and ffmpeg to achieve this aim. For short videos (<20 sec.) it works, but for longer recordings it presents the following error message :

  [mov,mp4,m4a,3gp,3g2,mj2 @ 0x55abb3a52540] moov atom not found
  
  tmp/tmp_0.mp4: Invalid data found when processing input

  Full output :

  ffmpeg version 3.3.7 Copyright (c) 2000-2018 the FFmpeg developers
  
  built with gcc 7 (GCC)
  
  configuration: --prefix=/usr --bindir=/usr/bin -- 
  
  datadir=/usr/share/ffmpeg --docdir=/usr/share/doc/ffmpeg -- 
  
  incdir=/usr/include/ffmpeg --libdir=/usr/lib64 --mandir=/usr/share/man -- 
  
  arch=x86_64 --optflags='-O2 -g -pipe -Wall -Werror=format-security -Wp, 
  
  -D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector-strong --param=ssp- 
  
  buffer-size=4 -grecord-gcc-switches -specs=/usr/lib/rpm/redhat/redhat- 
  
  hardened-cc1 -m64 -mtune=generic -fasynchronous-unwind-tables' --extra- 
  
  ldflags='-Wl,-z,relro -specs=/usr/lib/rpm/redhat/redhat-hardened-ld ' -- 
  
  extra-cflags='-I/usr/include/nvenc ' --enable-libopencore-amrnb -- 
  
  enable- 
  
  libopencore-amrwb --enable-libvo-amrwbenc --enable-version3 --enable-bzlib 
  
  --disable-crystalhd --enable-fontconfig --enable-frei0r --enable-gcrypt -- 
  
  enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable- 
  
  libcdio --enable-indev=jack --enable-libfreetype --enable-libfribidi -- 
  
  enable-libgsm --enable-libmp3lame --enable-nvenc --enable-openal --enable- 
  
  opencl --enable-opengl --enable-libopenjpeg --enable-libopus --enable- 
  
  libpulse --enable-libschroedinger --enable-libsoxr --enable-libspeex -- 
  
  enable-libtheora --enable-libvorbis --enable-libv4l2 --enable- libvidstab - 
  
  -enable-libvpx --enable-libx264 --enable-libx265 --enable-libxvid -- 
  
  enable-avfilter --enable-avresample --enable-postproc --enable-pthreads -- 
  
  disable-static --enable-shared --enable-gpl --disable-debug --disable- 
  
  stripping --shlibdir=/usr/lib64 --enable-libmfx --enable-runtime-cpudetect
  
    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
  
    libavresample   3.  5.  0 /  3.  5.  0
  
    libswscale      4.  6.100 /  4.  6.100
  
    libswresample   2.  7.100 /  2.  7.100
  
    libpostproc    54.  5.100 / 54.  5.100
  
  [wav @ 0x55abb3a0b880] Ignoring maximum wav data size, file may be invalid
  
  [wav @ 0x55abb3a0b880] Estimating duration from bitrate, this may be 
  
  inaccurate
  
  Guessed Channel Layout for Input Stream #0.0 : stereo
  
  Input #0, wav, from 'tmp/tmp_0.wav':
  
    Metadata:
  
      encoder         : Lavf57.71.100
  
    Duration: 00:00:21.97, bitrate: 768 kb/s
  
  Stream #0:0: Audio: pcm_mulaw ([7][0][0][0] / 0x0007), 48000 Hz, 
  
  stereo, s16, 768 kb/s
  
  [mov,mp4,m4a,3gp,3g2,mj2 @ 0x55abb3a52540] moov atom not found
  
  tmp/tmp_0.mp4: Invalid data found when processing input

  The python file (ffmpeg.py) is as follows. The class, AV_COMPILE, is not yet complete, held up by the aforementioned error, and therefore still uses the initial test files as defaults. But otherwise it ought to work :

  import os, time, glob
  
  
  
  TMP_DIR = "tmp"
  
  DISPLAY = os.environ['DISPLAY']
  
  EXT = {
  
      'Video':'mp4',
  
      'Audio':'wav',
  
      'AV':'mkv',
  
  }
  
  
  
  class ffmpegVideo:
  
  
  
      FFMPEG_BIN = "ffmpeg"
  
      AUDIO = False
  
  
  
      def __init__(self, fps = 30, audio = True):
  
      global TMP_DIR, DISPLAY, EXT
  
  
  
      self.fps = fps
  
  
  
      if audio:
  
          self.AUDIO = True
  
  
  
      self.video_filename = self.unique_filename()
  
  
  
      self.command = [ self.FFMPEG_BIN,
  
          '-video_size', '1920x1080',
  
          '-framerate', str(fps),
  
          '-f', 'x11grab',
  
          '-i', DISPLAY,
  
          '-vcodec', 'libx264',
  
          '-qp', '0',
  
          '-preset', 'ultrafast',
  
          '-y', TMP_DIR + '/' + self.video_filename
  
      ]
  
  
  
  def start(self):
  
      import threading as th
  
  
  
      thread = th.Thread(target=self.record)
  
      thread.start()
  
  
  
  def record(self):
  
      import subprocess as sp
  
  
  
      self.pipe = sp.Popen(self.command, stderr=sp.PIPE)
  
  
  
      if self.AUDIO:
  
          ffmpegAudio().start()
  
  
  
  def stop(self):
  
      self.pipe.terminate()
  
  
  
  def unique_filename(self):
  
      global TMP_DIR, EXT
  
  
  
      i = 0
  
  
  
      while os.path.exists((TMP_DIR + '/' + 'tmp_%s.%s') % (i, EXT['Video'])):
  
          i += 1
  
  
  
      return ('tmp_%s.%s') % (i, EXT['Video'])
  
  
  
  class ffmpegAudio:
  
  
  
      FFMPEG_BIN = "ffmpeg"
  
  
  
      def __init__(self):
  
  
  
          self.audio_filename = self.unique_filename()
  
  
  
          self.command = [ self.FFMPEG_BIN,
  
              '-f', 'pulse',
  
              '-ac', '2',
  
              '-ar', '48000',
  
              '-i', 'default',
  
             '-acodec', 'pcm_mulaw',
  
             '-y', TMP_DIR + '/' + self.audio_filename
  
          ]
  
  
  
      def start(self):
  
          import threading as th
  
  
  
          au_thread = th.Thread(target=self.record)
  
          au_thread.start()
  
  
  
      def record(self):
  
           import subprocess as sp
  
  
  
          self.pipe = sp.Popen(self.command, stderr=sp.PIPE)
  
  
  
      def stop(self):
  
          self.pipe.terminate()
  
  
  
      def unique_filename(self):
  
          global TMP_DIR, EXT
  
  
  
          i = 0
  
  
  
          while os.path.exists((TMP_DIR + '/' + 'tmp_%s.%s') % (i, EXT['Audio'])):
  
          i += 1
  
  
  
          return ('tmp_%s.%s') % (i, EXT['Audio'])
  
  
  
  class AV_COMPILE:
  
  
  
      def __init__(self, au_in = TMP_DIR + '/' + 'out1.wav', vd_in = 
  
  TMP_DIR + '/' + 'test4.mp4', out = TMP_DIR + '/' + 'av.mkv'):
  
          import subprocess as sp
  
  
  
          au_in = min(glob.iglob(TMP_DIR + '/*.wav'), key=os.path.getctime)
  
          vd_in = min(glob.iglob(TMP_DIR + '/*.mp4'), key=os.path.getctime)
  
  
  
          self.command = ('ffmpeg -i %s  -r 30 -i %s -shortest -c:a aac -c:v copy %s') % (au_in, vd_in, out)
  
          sp.call(self.command, shell=True)

  I would be grateful for any assistance you could provide in understanding why this happens and how to solve the error. Also, I am happy to receive any other tips on how to improve this code, or any other problems anyone might notice.

  EDIT :
  I now believe that the reason for this error in longer videos, and occasionally shorter, is that the program is proceeding to attempt to compile the av output whether or not it has finished compiling the original video file. I tested a time.sleep(10) function to delay AV_COMPILE, and this seems to work.

  However, as video files get larger, obviously the delay needs to be adjusted. So I should like to know how I can separately check the integrity of the video file and determine that it is safe to proceed to the next step.

• Concatenating two videos with different width and height

  7 mai 2018, par Tahtakafa

  If i try to concatenate two videos it throws an error due to different screen sizes of the videos. I have put a setdat=16/9 parameter like described here for each two video. Then i got the error below. How can i concatenate two videos with different screen sizes ?

  code :

  ffmpeg -i /var/www/html/GetVideo/reklam/muzikli1.mp4 -i /var/www/html/GetVideo/tempvideo/sample.mp4 -filter_complex \ "[0]setdar=16/9[a];[1]setdar=16/9[b]; \ [a][b]concat=n=2:v=1:a=1" /var/www/html/GetVideo/reklam/out.mp4

  error :

  pi@raspberrypi:/var/www/html/GetVideo $ ffmpeg -i /var/www/html/GetVideo/reklam/muzikli1.mp4 -i /var/www/html/GetVideo/tempvideo/sample.mp4 -filter_complex \ "[0]setdar=16/9[a];[1]setdar=16/9[b]; \ [a][b]concat=n=2:v=1:a=1" /var/www/html/GetVideo/reklam/out.mp4
  
  ffmpeg version git-2018-05-06-652b857 Copyright (c) 2000-2018 the FFmpeg developers
  
    built with gcc 6.3.0 (Raspbian 6.3.0-18+rpi1+deb9u1) 20170516
  
    configuration: --arch=armel --target-os=linux --enable-gpl --enable-libx264 --enable-nonfree
  
    libavutil      56. 18.100 / 56. 18.100
  
    libavcodec     58. 19.101 / 58. 19.101
  
    libavformat    58. 13.101 / 58. 13.101
  
    libavdevice    58.  4.100 / 58.  4.100
  
    libavfilter     7. 21.100 /  7. 21.100
  
    libswscale      5.  2.100 /  5.  2.100
  
    libswresample   3.  2.100 /  3.  2.100
  
    libpostproc    55.  2.100 / 55.  2.100
  
  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/var/www/html/GetVideo/reklam/muzikli1.mp4':
  
    Metadata:
  
      major_brand     : mp42
  
      minor_version   : 0
  
      compatible_brands: mp41isom
  
    Duration: 00:00:13.35, start: 0.000000, bitrate: 244 kb/s
  
      Stream #0:0(und): Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yuv420p, 918x512 [SAR 1:1 DAR 459:256], 110 kb/s, 5 fps, 5 tbr, 5k tbn, 10k tbc (default)
  
      Metadata:
  
        handler_name    : VideoHandler
  
        encoder         : AVC Coding
  
      Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, mono, fltp, 129 kb/s (default)
  
      Metadata:
  
        handler_name    : SoundHandler
  
  Input #1, mov,mp4,m4a,3gp,3g2,mj2, from '/var/www/html/GetVideo/tempvideo/sample.mp4':
  
    Metadata:
  
      major_brand     : isom
  
      minor_version   : 512
  
      compatible_brands: isomiso2avc1mp41
  
      encoder         : Lavf57.65.100
  
    Duration: 00:00:25.57, start: 0.000000, bitrate: 1015 kb/s
  
      Stream #1:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1280x720, 896 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)
  
      Metadata:
  
        handler_name    : VideoHandler
  
      Stream #1:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 113 kb/s (default)
  
      Metadata:
  
        handler_name    : SoundHandler
  
  [AVFilterGraph @ 0x2fa9a20] No such filter: ' '
  
  Error initializing complex filters.
  
  Invalid argument

• FFMPEG : Impossible to convert between the formats supported by the filter

  30 avril 2018, par Netheme

  Trying to decode & encode the video in FFMPEG on my GPU. Using this command :

  ffmpeg -y -c:v mpeg2_cuvid -vsync 0 -deint 2 -drop_second_field 1 -surfaces 10 -i 'udp://@227.10.20.149:1234?fifo_size=100000000'  -map i:0x12c -r 25 -filter fps=30,scale_npp=640:360:format=same:interp_algo=lanczos -aspect 16:9 -g 96 -vcodec h264_nvenc -b 400K -minrate 400k -maxrate 400k -f mpegts 'udp://@239.0.0.12:1000?overrun_nonfatal_option=1'

  But FFMPEG still giving me this output :

    Using -vsync 0 and -r can produce invalid output files
  
    Stream mapping:
  
    Stream #0:8 -> #0:0 (mpeg2video (mpeg2_cuvid) -> h264 (h264_nvenc))
  
    Stream #0:8 -> #1:0 (mpeg2video (mpeg2_cuvid) -> h264 (h264_nvenc))
  
    Stream #0:8 -> #2:0 (mpeg2video (mpeg2_cuvid) -> h264 (h264_nvenc))
  
    Stream #0:8 -> #3:0 (mpeg2video (mpeg2_cuvid) -> h264 (h264_nvenc))
  
    Stream #0:9 -> #4:0 (mp2 (native) -> aac (native))
  
    Stream #0:10 -> #5:0 (mp2 (native) -> aac (native))
  
    Press [q] to stop, [?] for help
  
    [mpegts @ 0x55c260173b20] frame size not set
  
    Output #5, mpegts, to 'udp://@239.0.0.12:1005?overrun_nonfatal_option=1':
  
    Metadata:
  
      encoder         : Lavf57.83.100
  
      Stream #5:0(eng): Audio: aac (LC), 48000 Hz, stereo, fltp, 128 kb/s
  
      Metadata:
  
        encoder         : Lavc57.107.100 aac
  
  [mpegts @ 0x55c260172560] frame size not set
  
  Output #4, mpegts, to 'udp://@239.0.0.12:1004?overrun_nonfatal_option=1':
  
    Metadata:
  
      encoder         : Lavf57.83.100
  
      Stream #4:0(por): Audio: aac (LC), 48000 Hz, stereo, fltp, 128 kb/s
  
      Metadata:
  
        encoder         : Lavc57.107.100 aac
  
  Impossible to convert between the formats supported by the filter 'Parsed_fps_0' and the filter 'auto_scaler_0'
  
  Error reinitializing filters!
  
  Failed to inject frame into filter network: Function not implemented
  
  Error while processing the decoded data for stream #0:8
  
  [aac @ 0x55c260173020] Qavg: 347.777
  
  [aac @ 0x55c260173020] 2 frames left in the queue on closing
  
  [aac @ 0x55c260174ac0] Qavg: 339.059
  
  [aac @ 0x55c260174ac0] 2 frames left in the queue on closing
  
  Conversion failed!

  My version of FFMPEG :

  ffmpeg version n3.4.2-9-ga877ab75eb Copyright (c) 2000-2018 the FFmpeg developers
  
    built with gcc 6.3.0 (Debian 6.3.0-18+deb9u1) 20170516
  
    configuration: --enable-libzvbi --enable-libnpp --enable-cuda --enable-cuvid --enable-nvenc --extra-cflags=-I/usr/local/cuda/include --extra-ldflags=-L/usr/local/cuda/lib64 --enable-gpl --enable-libx264 --disable-x86asm --enable-libx265 --enable-libfdk-aac --enable-nonfree
  
    libavutil      55. 78.100 / 55. 78.100
  
    libavcodec     57.107.100 / 57.107.100
  
    libavformat    57. 83.100 / 57. 83.100
  
    libavdevice    57. 10.100 / 57. 10.100
  
    libavfilter     6.107.100 /  6.107.100
  
    libswscale      4.  8.100 /  4.  8.100
  
    libswresample   2.  9.100 /  2.  9.100
  
    libpostproc    54.  7.100 / 54.  7.100
  
  Hyper fast Audio and Video encoder
  
  usage: ffmpeg [options] [[infile options] -i infile]... {[outfile options] outfile}...
  
  
  
  Use -h to get full help or, even better, run 'man ffmpeg'

  I tried to change the output codec to hevc_nvenc, nvenc_hevc (all available from Nvidia), but still getting this error. What I am doing wrong ?
  Thanks for tips.