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• First input link main timebase (1/15360) do not match the corresponding second input link xfade timebase (1/90000)

  14 novembre 2023, par Rino

  coders

  


  I am new to ffmpeg and i am facing this error for more then 2 days.
This ffmpeg command :
!ffmpeg -i "{fromPath}" -i "{toPath}" -filter_complex "xfade=transition={chosenTransition}:duration={transitionDuration}:offset=-1.5" -c:v libx264 -crf 18 -preset veryfast "{outPath}"
I run that previous command 3 times in row where output of the previous command is input that is getting produced as 15360 timebase video i guess.

  


  is giving me this error : "First input link main timebase (1/15360) do not match the corresponding second input link xfade timebase (1/90000)"

  


  So when i merge two of my videos the output is video with (1/15360) timebase. Original videos has (1/90000) timebase.

  


  Pls help what i wana archive is basicly multiple videos inside a folder called "clips" merge together using a random transition from xfade/ffmpeg.

  


  On colab i tried all this ways :

  


  !rm -rf chunks
!mkdir chunks
time.sleep(1)
folderPath = '/content/clips'
videoOutput = '/content/test.mp4'
transitionDuration = 6

videoFiles = [f"{folderPath}/{f}" for f in os.listdir(folderPath) if f.endswith('.mp4')]
random.shuffle(videoFiles)
fromPath = videoFiles[0]
toPath = ''
outPath = ''
transitions = ['fade', 'wipeup', 'slidedown', 'circleclose', 'radial' , 'hrslice', 'hblur', 'smoothleft', 'smoothright']

for videoIndex, videoName in enumerate(videoFiles):
    if videoIndex == 0:
        continue
    toPath = videoName
    chosenTransition = random.choice(transitions)
    print('chosenTransition', chosenTransition)
    clipDuration = int((imageio.get_reader(fromPath)).get_meta_data()['duration']) - transitionDuration
    # !echo -i /content/clips/clip0.mp4 -i /content/clips/clip1.mp4 -filter_complex xfade=transition={chosenTransition}:duration=3:offset={clipDuration} dissolveVideo.mp4

    if videoIndex == len(videoFiles) - 1:
        outPath = videoOutput
    else:
        outPath = f'/content/chunks/chunk{videoIndex}.mp4'
    time.sleep(2)
    
    # !echo -i "{fromPath}" -i "{toPath}" -filter_complex "[0:v]xfade=transition={chosenTransition}:duration=3:offset={clipDuration},settb=1/19000[v0];[0:a][1:a]acrossfade=d=3[aout]" -map "[v0]" -map "[aout]" -c:v libx264 -crf 18 -preset ultrafast "{outPath}"
    !ffmpeg -i "{fromPath}" -i "{toPath}" -filter_complex "xfade=transition={chosenTransition}:duration={transitionDuration}:offset=-1.5,settb=1/15360" -c:v libx264 -crf 18 -preset veryfast "{outPath}"
    # !ffmpeg -i "{fromPath}" -i "{toPath}" -filter_complex "[0:v]settb=1/15360,setpts=PTS-STARTPTS[v0];[1:v]settb=1/15360,setpts=PTS-STARTPTS[v1];[v0][v1]xfade=transition={chosenTransition}:duration={transitionDuration}:offset=-1.5[vout]" -map "[vout]" -c:v libx264 -crf 18 -preset ultrafast "{outPath}"
    # !ffmpeg -i "{fromPath}" -i "{toPath}" -filter_complex "[0]settb=AVTB [0v]; [1]settb=AVTB [1v]; [0v] [1v]xfade=transition={chosenTransition}:duration={transitionDuration}:offset=1" -c:v libx264 -crf 18 -preset ultrafast "{outPath}"
    # !ffmpeg -i "{fromPath}" -i "{toPath}" -filter_complex "[0:v]xfade=transition={chosenTransition}:duration=3:offset={clipDuration},settb=1/15360[v0];[0:a][1:a]acrossfade=d=3[aout]" -map "[v0]" -map "[aout]" -c:v libx264 -crf 18 -preset ultrafast "{outPath}"
    # !ffmpeg -y -progress .progressinfo.dat -i "{fromPath}" -i "{toPath}" -filter_complex "[0:v]settb=AVTB,setpts=PTS-STARTPTS[v0];[1:v]settb=AVTB,setpts=PTS-STARTPTS[v1];[v0][v1]xfade=transition={chosenTransition}:duration={transitionDuration}:offset={clipDuration}[vout];[0:a]asettb=AVTB,asetpts=PTS-STARTPTS[a0];[1:a]asettb=AVTB,asetpts=PTS-STARTPTS[a1];[a0][a1]acrossfade=d=3[aout]" -map "[vout]" -map "[aout]" -c:v libx264 -crf 18 -preset ultrafast "{outPath}"



  


• ffmpeg - Making a Clean WAV file

  24 septembre 2016, par Edward

  I’m looking to batch convert a number of files to audio files using ffmpeg for a game called Star Wars: Jedi Knight: Dark Forces II. The problem I’m having is that ffmpeg seems to be doing something that does so that Jedi Knight can’t play the sound file.

  Jedi Knight accepts plain old PCM WAV files of various ranges, from 5khz to 96khz, 8 and 16 bit, mono and stereo. This sounds plain and simple. Except for that if one were to create a WAV file using MS Sound Recorder, Jedi Knight could not play it. Speculation was that it added something extra to header or something. But it can play a WAV file created by Audacity, GoldWave or ModPlug Tracker to name a few.

  So why not ffmpeg ? Am I using the wrong codec or params ? I took an original sound file from the game and performed the following :

  ffmpeg -i "orig_thrmlpu2.wav" -f wav -acodec pcm_s16le -ar 22050 -ac 1 "ffmpeg_thrmlpu2.wav"

  The ffmpeg version does not play in the game. ffprobe shows that the ffmpeg version has some Metadata which the original doesn’t have. What params should I use to try and get the same WAV format as the original ? Mind you, -ar, -ac and bits aren’t the important parts.

  Here are the files for you to examine : http://www.edwardleuf.org/Games/JK/thrmlpu2.zip

• ffmpeg - Making a Clean WAV file

  10 janvier 2021, par Edward

  I'm looking to batch convert a number of files to audio files using ffmpeg for a game called Star Wars: Jedi Knight: Dark Forces II. The problem I'm having is that ffmpeg seems to be doing something that does so that Jedi Knight can't play the sound file.

  



  Jedi Knight accepts plain old PCM WAV files of various ranges, from 5khz to 96khz, 8 and 16 bit, mono and stereo. This sounds plain and simple. Except for that if one were to create a WAV file using MS Sound Recorder, Jedi Knight could not play it. Speculation was that it added something extra to header or something. But it can play a WAV file created by Audacity, GoldWave or ModPlug Tracker to name a few.

  



  So why not ffmpeg ? Am I using the wrong codec or params ? I took an original sound file from the game and performed the following :

  



  ffmpeg -i "orig_thrmlpu2.wav" -f wav -acodec pcm_s16le -ar 22050 -ac 1 "ffmpeg_thrmlpu2.wav"


  



  The ffmpeg version does not play in the game. ffprobe shows that the ffmpeg version has some Metadata which the original doesn't have. What params should I use to try and get the same WAV format as the original ? Mind you, -ar, -ac and bits aren't the important parts.

  



  Here are the files for you to examine : http://www.edwardleuf.org/Games/JK/thrmlpu2.zip