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• avformat/async : fix assertion condition when draining buffer

  27 janvier 2019, par Marton Balint

  avformat/async : fix assertion condition when draining buffer
  Fixes some random assertion failures with
  ffprobe -show_packets async:samples/ffmpeg-bugs/trac/ticket6132/Samsung_HDR_-_Chasing_the_Light.ts > /dev/null
  Signed-off-by : Marton Balint <cus@passwd.hu>
  

  • [DH] libavformat/async.c

• How to define the condition of a corrupted file for audio file in Python

  14 août 2020, par kutlus

  I am using Python 3.6, Jupyter notebook by connecting to a remote machine. I have a large dataset of mp3 files. I use FFmpeg (version is 2.8.14-0ubuntu0.16.04.1.) to convert mp3 files to wav format.

  


  My code below goes over the file path list and if the file is mp3 it converts it to wav format and deletes the mp3 file. The code works but for a few files it stops and gives error. I opened those files and saw that they have no duration and each of them has size 600 looking at the terminal folder size column but it might be a coincidence. The error is file not found for 'temp_name.wav'.

  


  I can see that these corrupted files are not able to be converted to wav. When I delete them manually and run the code again it works. But I have large datasets and cannot know which files are corrupted beforehand. Is there a way to make the code (before converting the file to wav) if the file is corrupted it deletes it and continues to next file. I just don`t know how to define the condition of a corrupted file or if the file cannot be converted to wav.

  


  # npaths is the list of full file paths 
for fpath in npaths:
    if (fpath.endswith(".mp3")):
        cdir=os.path.dirname(fpath)      # extract the directory of file
        os.chdir(cdir)        # change the directory to cdir
        filename=os.path.basename(fpath)   # extract the filename from the path
        os.system("ffmpeg -i {0} temp_name.wav".format(filename))
        ofnamepath=os.path.splitext(fpath)[0]    # filename without extension
        temp_name=os.path.join(cdir, "temp_name.wav")
        new_name = os.path.join(ofnamepath+'.wav')
        os.rename(temp_name,new_name) # use original filename with wav ext
        old_file = os.path.join(ofnamepath+'.mp3')    # find and delete the mp3
        os.remove(old_file)


  


• lavfi/af_asetnsamples : Remove the redundant condition check

  15 juin 2019, par Jun Zhao

  lavfi/af_asetnsamples : Remove the redundant condition check
  Redundant condition : ' !A || B' is equivalent to ' !A || (A && B)' but
  
  more clearly.
  Reviewed-by : Michael Niedermayer <michael@niedermayer.cc>
  
  Signed-off-by : Jun Zhao <barryjzhao@tencent.com>
  

  • [DH] libavfilter/af_asetnsamples.c