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• libavformat/oggdec : Free stream private when header parsing fails.

  10 mai 2016, par Chris Cunningham

  libavformat/oggdec : Free stream private when header parsing fails.
  Leaking this private structure opens up the possibility that it may
  
  be re-used when parsing later packets in the stream. This is
  
  problematic if the later packets are not the same codec type (e.g.
  
  private allocated during Vorbis parsing, but later packets are Opus
  
  and the private is assumed to be the oggopus_private type in
  
  opus_header()).
  Signed-off-by : Michael Niedermayer <michael@niedermayer.cc>
  

  • [DH] libavformat/oggdec.c

• Very basic Moviepy script failing to run

  1er juillet 2018, par cem akbulut

  So, I have this very basic script that concatenates two videos, and adds a background sound.

  def intro():
  
  
  
      voiceoverIntro = AudioFileClip(audio[3]) #get path for intro.mp3
  
  
  
  
  
      introVideo = []
  
      temp = p1vid + p2vid + p3vid
  
  
  
      for x in temp: # add product videos to introVideo if they are longer than intro.mp3
  
          x = VideoFileClip(x)
  
  
  
          if x.duration >= voiceoverIntro.duration:
  
              introVideo.append(x)
  
  
  
  
  
      if len(introVideo) >= 1:
  
  
  
          #Get the video and turn off its volume
  
          introBg = introVideo[0].volumex(0).resize((1280,720))
  
          introBg = introBg.set_audio(voiceoverIntro).set_duration(voiceoverIntro.duration)
  
  
  
  
  
          introBg.reader.close()
  
          introBg.audio.reader.close_proc()
  
  
  
          return introBg

  And this function creates the second clip

  def productThreeOpener(productName):
  
      opener3 = VideoFileClip("media/number3.mp4").volumex(0).resize((1280,720))
  
  
  
  
  
  
  
      text = TextClip(productName,fontsize=60,color='white', font="Dekar")\
  
          .set_pos(("right", "center"))\
  
          .set_duration(3)\
  
          .set_start(2)\
  
          .crossfadein(1)\
  
          .crossfadeout(1)\
  
          .margin(right=200,opacity=0)
  
  
  
      opener3 = CompositeVideoClip([opener3, text])
  
  
  
      return opener3

  Now we just concatenate the two outputs

  final_clip = concatenate_videoclips([intro, productThreeOpener], method="compose")

  final_clip.resize((1280, 720)).write_videofile("output/intro.mp4", threads=8, fps=24, progress_bar=False)

  Running the code above returns this error ;

  Traceback (most recent call last):
  
  [MoviePy] >>>> Building video output/intro.mp4
  
    File "C:/Users/Akbulut/PycharmProjects/youtubeVideoEditor/vidEditor/sandbox.py", line 145, in <module>
  
  [MoviePy] Writing audio in introTEMP_MPY_wvf_snd.mp3
  
      final_clip.write_videofile("output/intro.mp4", threads=8, fps=24, progress_bar=False)
  
    File "", line 2, in write_videofile
  
    File "C:\Program Files\Python36\lib\site-packages\moviepy\decorators.py", line 54, in requires_duration
  
      return f(clip, *a, **k)
  
    File "", line 2, in write_videofile
  
    File "C:\Program Files\Python36\lib\site-packages\moviepy\decorators.py", line 137, in use_clip_fps_by_default
  
      return f(clip, *new_a, **new_kw)
  
    File "", line 2, in write_videofile
  
    File "C:\Program Files\Python36\lib\site-packages\moviepy\decorators.py", line 22, in convert_masks_to_RGB
  
      return f(clip, *a, **k)
  
    File "C:\Program Files\Python36\lib\site-packages\moviepy\video\VideoClip.py", line 318, in write_videofile
  
      progress_bar=progress_bar)
  
    File "", line 2, in write_audiofile
  
    File "C:\Program Files\Python36\lib\site-packages\moviepy\decorators.py", line 54, in requires_duration
  
      return f(clip, *a, **k)
  
    File "C:\Program Files\Python36\lib\site-packages\moviepy\audio\AudioClip.py", line 213, in write_audiofile
  
      progress_bar=progress_bar)
  
    File "", line 2, in ffmpeg_audiowrite
  
    File "C:\Program Files\Python36\lib\site-packages\moviepy\decorators.py", line 54, in requires_duration
  
      return f(clip, *a, **k)
  
    File "C:\Program Files\Python36\lib\site-packages\moviepy\audio\io\ffmpeg_audiowriter.py", line 165, in ffmpeg_audiowrite
  
      ffmpeg_params=ffmpeg_params)
  
    File "C:\Program Files\Python36\lib\site-packages\moviepy\audio\io\ffmpeg_audiowriter.py", line 71, in __init__
  
      self.proc = sp.Popen(cmd, **popen_params)
  
    File "C:\Program Files\Python36\lib\subprocess.py", line 594, in __init__
  
      _cleanup()
  
    File "C:\Program Files\Python36\lib\subprocess.py", line 205, in _cleanup
  
      res = inst._internal_poll(_deadstate=sys.maxsize)
  
    File "C:\Program Files\Python36\lib\subprocess.py", line 1025, in _internal_poll
  
      if _WaitForSingleObject(self._handle, 0) == _WAIT_OBJECT_0:
  
  OSError: [WinError 6] İşleyici geçersiz
  
  Exception ignored in: <bound method="method" of="of" object="object" at="at" 0x0000000a885019b0="0x0000000a885019b0">>
  
  Traceback (most recent call last):
  
    File "C:\Program Files\Python36\lib\site-packages\moviepy\audio\io\ffmpeg_audiowriter.py", line 134, in __del__
  
      self.close()
  
    File "C:\Program Files\Python36\lib\site-packages\moviepy\audio\io\ffmpeg_audiowriter.py", line 122, in close
  
      if self.proc:
  
  AttributeError: 'FFMPEG_AudioWriter' object has no attribute 'proc'
  
  
  
  Process finished with exit code 1
  
  </bound></module>

  I strictly followed MoviePY installation guide, installed it and all of its dependencies about 2 days ago. I work on a 64b Windows machine. Python version 3.6.1

  I’ve been stuck with this error for over a day now, and I don’t know what to try.. Any help/advice is highly appreciated.

  Thanks.

• How to use FFMPEG Binaries within an Android App built with Android Studio for Windows

  17 février 2016, par Valtinho

  I’ve read hundreds of pages on how to use ffmpeg in Android Studio all over the internet and none of them managed to give actual working solutions. I need to be able to trim a video selected from the gallery down to only the first 5 seconds. Ffmpeg is extremely user-unfriendly and I can’t even get it to compile successfully.

  The closest I got to compiling ffmpeg was running the app from uday-rayala called video-trimmer on github : https://github.com/uday-rayala/video-trimmer

  I downloaded the code, imported it into Eclipse and it runs and cuts videos once (it always crashes if you try a second time...). Anyway, I tried to replicate uday’s video-trimmer setup in my Android Studio app by moving the ffmpeg source files into a jni folder, and the armeabi folder inside a jniLibs folder, but the entire thing falls apart and doesn’t compile.

  Has anyone implemented ffmpeg source code within their apps ??? If so, could you please provide some working examples ? The internet is in desperate need of complete working examples for the extremely common task of video editing.