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• Xuggle - Concatenate two videos - Error - java.lang.RuntimeException : error -1094995529 decoding audio

  1er avril 2013, par user2232357

  I am using the Xuggle API to concatenate two MPEG videos (with Audio inbuilt in the MPEGs).
  I am referring to the https://code.google.com/p/xuggle/source/browse/trunk/java/xuggle-xuggler/src/com/xuggle/mediatool/demos/ConcatenateAudioAndVideo.java?r=929. (my both inputs and output are MPEGs).

  Getting the bellow error.

  14:06:50.139 [main] ERROR org.ffmpeg - [mp2 @ 0x7fd54693d000] incomplete frame
  
  java.lang.RuntimeException: error -1094995529 decoding audio
  
      at com.xuggle.mediatool.MediaReader.decodeAudio(MediaReader.java:549)
  
      at com.xuggle.mediatool.MediaReader.readPacket(MediaReader.java:469)
  
      at com.tav.factory.video.XuggleMediaCreator.concatenateAllVideos(XuggleMediaCreator.java:271)
  
      at com.tav.factory.video.XuggleMediaCreator.main(XuggleMediaCreator.java:446)

  Can anyone help mw with this ??? Thanks in Advance..

  Here is the complete code.

  public String concatenateAllVideos(ArrayList<tavtexttoavrequest> list){
  
          String finalPath="";
  
  
  
  
  
          String sourceUrl1 = "/Users/SSID/WS/SampleTTS/page2/AV_TAVImage2.mpeg";
  
          String sourceUrl2 = "/Users/SSID/WS/SampleTTS/page2/AV_TAVImage3.mpeg";
  
          String destinationUrl = "/Users/SSID/WS/SampleTTS/page2/z_AV_TAVImage_Final23.mpeg";
  
  
  
          out.printf("transcode %s + %s -> %s\n", sourceUrl1, sourceUrl2,
  
            destinationUrl);
  
  
  
          //////////////////////////////////////////////////////////////////////
  
          //                                                                  //
  
          // NOTE: be sure that the audio and video parameters match those of //
  
          // your input media                                                 //
  
          //                                                                  //
  
          //////////////////////////////////////////////////////////////////////
  
  
  
          // video parameters
  
  
  
          final int videoStreamIndex = 0;
  
          final int videoStreamId = 0;
  
          final int width = 400;
  
          final int height = 400;
  
  
  
          // audio parameters
  
  
  
          final int audioStreamIndex = 1;
  
          final int audioStreamId = 0;
  
          final int channelCount = 1;
  
          final int sampleRate = 16000 ; // Hz 16000 44100;
  
  
  
          // create the first media reader
  
  
  
          IMediaReader reader1 = ToolFactory.makeReader(sourceUrl1);
  
  
  
          // create the second media reader
  
  
  
          IMediaReader reader2 = ToolFactory.makeReader(sourceUrl2);
  
  
  
          // create the media concatenator
  
  
  
          MediaConcatenator concatenator = new MediaConcatenator(audioStreamIndex,
  
            videoStreamIndex);
  
  
  
          // concatenator listens to both readers
  
  
  
          reader1.addListener(concatenator);
  
          reader2.addListener(concatenator);
  
  
  
          // create the media writer which listens to the concatenator
  
  
  
          IMediaWriter writer = ToolFactory.makeWriter(destinationUrl);
  
          concatenator.addListener(writer);
  
  
  
          // add the video stream
  
  
  
          writer.addVideoStream(videoStreamIndex, videoStreamId, width, height);
  
  
  
          // add the audio stream
  
  
  
          writer.addAudioStream(audioStreamIndex, audioStreamId, channelCount,sampleRate);
  
  
  
          // read packets from the first source file until done
  
  
  
          try {
  
              while (reader1.readPacket() == null)
  
                ;
  
          } catch (Exception e) {
  
              // TODO Auto-generated catch block
  
              e.printStackTrace();
  
          }
  
  
  
          // read packets from the second source file until done
  
  
  
          try {
  
              while (reader2.readPacket() == null)
  
                ;
  
          } catch (Exception e) {
  
              // TODO Auto-generated catch block
  
              e.printStackTrace();
  
          }
  
  
  
          // close the writer
  
  
  
          writer.close();
  
  
  
  
  
          return finalPath;
  
      }
  
  
  
      static class MediaConcatenator extends MediaToolAdapter
  
        {
  
          // the current offset
  
  
  
          private long mOffset = 0;
  
  
  
          // the next video timestamp
  
  
  
          private long mNextVideo = 0;
  
  
  
          // the next audio timestamp
  
  
  
          private long mNextAudio = 0;
  
  
  
          // the index of the audio stream
  
  
  
          private final int mAudoStreamIndex;
  
  
  
          // the index of the video stream
  
  
  
          private final int mVideoStreamIndex;
  
  
  
          /**
  
           * Create a concatenator.
  
           * 
  
           * @param audioStreamIndex index of audio stream
  
           * @param videoStreamIndex index of video stream
  
           */
  
  
  
          public MediaConcatenator(int audioStreamIndex, int videoStreamIndex)
  
          {
  
            mAudoStreamIndex = audioStreamIndex;
  
            mVideoStreamIndex = videoStreamIndex;
  
          }
  
  
  
          public void onAudioSamples(IAudioSamplesEvent event)
  
          {
  
            IAudioSamples samples = event.getAudioSamples();
  
  
  
            // set the new time stamp to the original plus the offset established
  
            // for this media file
  
  
  
            long newTimeStamp = samples.getTimeStamp() + mOffset;
  
  
  
            // keep track of predicted time of the next audio samples, if the end
  
            // of the media file is encountered, then the offset will be adjusted
  
            // to this time.
  
  
  
            mNextAudio = samples.getNextPts();
  
  
  
            // set the new timestamp on audio samples
  
  
  
            samples.setTimeStamp(newTimeStamp);
  
  
  
            // create a new audio samples event with the one true audio stream
  
            // index
  
  
  
            super.onAudioSamples(new AudioSamplesEvent(this, samples,
  
              mAudoStreamIndex));
  
          }
  
  
  
          public void onVideoPicture(IVideoPictureEvent event)
  
          {
  
            IVideoPicture picture = event.getMediaData();
  
            long originalTimeStamp = picture.getTimeStamp();
  
  
  
            // set the new time stamp to the original plus the offset established
  
            // for this media file
  
  
  
            long newTimeStamp = originalTimeStamp + mOffset;
  
  
  
            // keep track of predicted time of the next video picture, if the end
  
            // of the media file is encountered, then the offset will be adjusted
  
            // to this this time.
  
            //
  
            // You&#39;ll note in the audio samples listener above we used
  
            // a method called getNextPts().  Video pictures don&#39;t have
  
            // a similar method because frame-rates can be variable, so
  
            // we don&#39;t now.  The minimum thing we do know though (since
  
            // all media containers require media to have monotonically
  
            // increasing time stamps), is that the next video timestamp
  
            // should be at least one tick ahead.  So, we fake it.
  
  
  
            mNextVideo = originalTimeStamp + 1;
  
  
  
            // set the new timestamp on video samples
  
  
  
            picture.setTimeStamp(newTimeStamp);
  
  
  
            // create a new video picture event with the one true video stream
  
            // index
  
  
  
            super.onVideoPicture(new VideoPictureEvent(this, picture,
  
              mVideoStreamIndex));
  
          }
  
  
  
          public void onClose(ICloseEvent event)
  
          {
  
            // update the offset by the larger of the next expected audio or video
  
            // frame time
  
  
  
            mOffset = Math.max(mNextVideo, mNextAudio);
  
  
  
            if (mNextAudio &lt; mNextVideo)
  
            {
  
              // In this case we know that there is more video in the
  
              // last file that we read than audio. Technically you
  
              // should pad the audio in the output file with enough
  
              // samples to fill that gap, as many media players (e.g.
  
              // Quicktime, Microsoft Media Player, MPlayer) actually
  
              // ignore audio time stamps and just play audio sequentially.
  
              // If you don&#39;t pad, in those players it may look like
  
              // audio and video is getting out of sync.
  
  
  
              // However kiddies, this is demo code, so that code
  
              // is left as an exercise for the readers. As a hint,
  
              // see the IAudioSamples.defaultPtsToSamples(...) methods.
  
            }
  
          }
  
  
  
          public void onAddStream(IAddStreamEvent event)
  
          {
  
            // overridden to ensure that add stream events are not passed down
  
            // the tool chain to the writer, which could cause problems
  
          }
  
  
  
          public void onOpen(IOpenEvent event)
  
          {
  
            // overridden to ensure that open events are not passed down the tool
  
            // chain to the writer, which could cause problems
  
          }
  
  
  
          public void onOpenCoder(IOpenCoderEvent event)
  
          {
  
            // overridden to ensure that open coder events are not passed down the
  
            // tool chain to the writer, which could cause problems
  
          }
  
  
  
          public void onCloseCoder(ICloseCoderEvent event)
  
          {
  
            // overridden to ensure that close coder events are not passed down the
  
            // tool chain to the writer, which could cause problems
  
          }
  
        }
  
  </tavtexttoavrequest>

• MoviePy error : failed to read the first frame of video file ****. That might mean that the file is corrupted

  14 juillet 2022, par Udit Hari Vashisht

  I am trying to reverse a video using MoviePy. My code is as under : -

  


  from moviepy.editor import VideoFileClip
from moviepy.video.fx.all import time_mirror

clip = VideoFileClip("udit.mp4")

clip = clip.fx(time_mirror)

clip.write_videofile("reversed.mp4")


  


  But, when I run it I get the following error :-

  


  Traceback (most recent call last):&#xA;  File "/Users/uditvashisht/projects/experiments/script.py", line 6, in <module>&#xA;    clip = clip.fx(time_mirror)&#xA;  File "/opt/homebrew/lib/python3.9/site-packages/moviepy/Clip.py", line 212, in fx&#xA;    return func(self, *args, **kwargs)&#xA;  File "", line 2, in time_mirror&#xA;  File "/opt/homebrew/lib/python3.9/site-packages/moviepy/decorators.py", line 54, in requires_duration&#xA;    return f(clip, *a, **k)&#xA;  File "", line 2, in time_mirror&#xA;  File "/opt/homebrew/lib/python3.9/site-packages/moviepy/decorators.py", line 29, in apply_to_mask&#xA;    newclip = f(clip, *a, **k)&#xA;  File "", line 2, in time_mirror&#xA;  File "/opt/homebrew/lib/python3.9/site-packages/moviepy/decorators.py", line 41, in apply_to_audio&#xA;    newclip = f(clip, *a, **k)&#xA;  File "/opt/homebrew/lib/python3.9/site-packages/moviepy/video/fx/time_mirror.py", line 13, in time_mirror&#xA;    return self.fl_time(lambda t: self.duration - t, keep_duration=True)&#xA;  File "/opt/homebrew/lib/python3.9/site-packages/moviepy/Clip.py", line 187, in fl_time&#xA;    return self.fl(lambda gf, t: gf(t_func(t)), apply_to,&#xA;  File "/opt/homebrew/lib/python3.9/site-packages/moviepy/Clip.py", line 136, in fl&#xA;    newclip = self.set_make_frame(lambda t: fun(self.get_frame, t))&#xA;  File "", line 2, in set_make_frame&#xA;  File "/opt/homebrew/lib/python3.9/site-packages/moviepy/decorators.py", line 14, in outplace&#xA;    f(newclip, *a, **k)&#xA;  File "/opt/homebrew/lib/python3.9/site-packages/moviepy/video/VideoClip.py", line 644, in set_make_frame&#xA;    self.size = self.get_frame(0).shape[:2][::-1]&#xA;  File "", line 2, in get_frame&#xA;  File "/opt/homebrew/lib/python3.9/site-packages/moviepy/decorators.py", line 89, in wrapper&#xA;    return f(*new_a, **new_kw)&#xA;  File "/opt/homebrew/lib/python3.9/site-packages/moviepy/Clip.py", line 93, in get_frame&#xA;    return self.make_frame(t)&#xA;  File "/opt/homebrew/lib/python3.9/site-packages/moviepy/Clip.py", line 136, in <lambda>&#xA;    newclip = self.set_make_frame(lambda t: fun(self.get_frame, t))&#xA;  File "/opt/homebrew/lib/python3.9/site-packages/moviepy/Clip.py", line 187, in <lambda>&#xA;    return self.fl(lambda gf, t: gf(t_func(t)), apply_to,&#xA;  File "", line 2, in get_frame&#xA;  File "/opt/homebrew/lib/python3.9/site-packages/moviepy/decorators.py", line 89, in wrapper&#xA;    return f(*new_a, **new_kw)&#xA;  File "/opt/homebrew/lib/python3.9/site-packages/moviepy/Clip.py", line 93, in get_frame&#xA;    return self.make_frame(t)&#xA;  File "/opt/homebrew/lib/python3.9/site-packages/moviepy/video/io/VideoFileClip.py", line 113, in <lambda>&#xA;    self.make_frame = lambda t: self.reader.get_frame(t)&#xA;  File "/opt/homebrew/lib/python3.9/site-packages/moviepy/video/io/ffmpeg_reader.py", line 184, in get_frame&#xA;    result = self.read_frame()&#xA;  File "/opt/homebrew/lib/python3.9/site-packages/moviepy/video/io/ffmpeg_reader.py", line 133, in read_frame&#xA;    raise IOError(("MoviePy error: failed to read the first frame of "&#xA;OSError: MoviePy error: failed to read the first frame of video file udit.mp4. That might mean that the file is corrupted. That may also mean that you are using a deprecated version of FFMPEG. On Ubuntu/Debian for instance the version in the repos is deprecated. Please update to a recent version from the website&#xA;</lambda></lambda></lambda></module>

  


  I have tried the code on both Mac and Windows PC. The other functionality of MoviePy works fine, but I am not able to reverse the video. Both of my systems have ImageMagick and FFMPEG installed.

  


• FFMPEG : Why aren't all my codecs showing up when I call av_codec_next()

  21 juin 2018, par alvion

  I’m trying to make a custom build of ffmpeg to use in my c++ application. The only codecs I need are encode/decode for h264 and aac. Because I cannot use GPL code, I’m trying to use openh264.

  I successfully built openh264.

  I am configuring my ffmpeg build thusly :

  ../../../configure\
  
   --toolchain=msvc\
  
   --arch=x86_64\
  
   --enable-shared\
  
   --prefix=../../../Build/Windows10/x64\
  
   --disable-programs\
  
   --disable-everything\
  
   --enable-libopenh264\
  
   --extra-ldflags=../../../../openh264/openh264.lib\
  
   --enable-hwaccel=h264_d3d11va\
  
   --enable-encoder=libopenh264\
  
   --enable-encoder=aac\
  
   --enable-decoder=h264\
  
   --enable-decoder=aac\
  
   --enable-muxer=mp4\
  
   --enable-demuxer=mov\
  
   --enable-parser=h264\
  
   --enable-parser=aac\
  
   --disable-dxva2\
  
   --enable-protocol=file

  Here is my configure output :

  install prefix            ../../../Build/Windows10/x64
  
  source path               /c/ffmpeg
  
  C compiler                cl
  
  C library                 msvcrt
  
  ARCH                      x86 (generic)
  
  big-endian                no
  
  runtime cpu detection     yes
  
  yasm                      yes
  
  MMX enabled               yes
  
  MMXEXT enabled            yes
  
  3DNow! enabled            yes
  
  3DNow! extended enabled   yes
  
  SSE enabled               yes
  
  SSSE3 enabled             yes
  
  AESNI enabled             yes
  
  AVX enabled               yes
  
  XOP enabled               yes
  
  FMA3 enabled              yes
  
  FMA4 enabled              yes
  
  i686 features enabled     yes
  
  CMOV is fast              yes
  
  EBX available             no
  
  EBP available             no
  
  debug symbols             yes
  
  strip symbols             no
  
  optimize for size         no
  
  optimizations             yes
  
  static                    no
  
  shared                    yes
  
  postprocessing support    no
  
  network support           no
  
  threading support         w32threads
  
  safe bitstream reader     yes
  
  texi2html enabled         no
  
  perl enabled              yes
  
  pod2man enabled           no
  
  makeinfo enabled          yes
  
  makeinfo supports HTML    no
  
  
  
  External libraries:
  
  libopenh264             schannel                xlib
  
  
  
  External libraries providing hardware acceleration:
  
  cuda                    cuvid                   d3d11va                 nvenc
  
  
  
  Libraries:
  
  avcodec                 avfilter                avformat                avutil                  swresample              swscale
  
  avdevice
  
  
  
  Programs:
  
  
  
  Enabled decoders:
  
  aac                     h264
  
  
  
  Enabled encoders:
  
  aac                     libopenh264
  
  
  
  Enabled hwaccels:
  
  h264_d3d11va
  
  
  
  Enabled parsers:
  
  aac                     h264
  
  
  
  Enabled demuxers:
  
  mov
  
  
  
  Enabled muxers:
  
  mov                     mp4
  
  
  
  Enabled protocols:
  
  file
  
  
  
  Enabled filters:
  
  
  
  Enabled bsfs:
  
  
  
  Enabled indevs:
  
  
  
  Enabled outdevs:
  
  
  
  License: LGPL version 2.1 or later

  As you can see, it is listing two values each for encoders and decoders. HOWEVER, when I try to list the codecs available like so :

  av_register_all();
  
  AVCodec* current_codec = av_codec_next(nullptr);
  
  while (current_codec != nullptr)
  
  {
  
      if (av_codec_is_encoder(current_codec))
  
      {
  
          cout << "Found encoder " << current_codec->long_name << endl;
  
      }
  
      current_codec = av_codec_next(current_codec);
  
  }

  Only the first call to av_codec_next returns non-null, and it is the h264 decoder. I don’t see the aac decoder, and I don’t see any encoders at all.

  I’ve tried the same source code but linking to a prebuilt version of ffmpeg (from Zeroane), so I’m sure the code to iterate over the codecs is correct.

  What do I need to do to get openh264 and aac to be listed as codecs ?