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• vulkan(_decode) : fix, simplify and improve queries

  1er septembre 2024, par Lynne

  vulkan(_decode) : fix, simplify and improve queries
  The old query code never worked properly, and did some hideous
  
  heuristics to read the status bit, and work that into a return
  
  code.
  
  This is all best left to callers to do, which simplifies
  
  our code a lot.
  This also fixes minor validation errors regarding calling queries
  
  which are not in their active state.
  

  • [DH] libavcodec/vulkan_decode.c
  • [DH] libavutil/vulkan.c
  • [DH] libavutil/vulkan.h

• trim youtube video using ytdl-core and node js

  17 mars 2023, par sol

   app.get('/downloadMp4', async (req, res) => {
    var url = req.query.url
    var startTime = start;
    var endTime  =  end;
      
    try {
        var id = ytdl.getVideoID(url)
    } catch {
        res.json({ error: 'not a valid url or something like that' })
        return;
    }
    console.log('downloading info: ' + id)
    var info = await ytdl.getBasicInfo(id)
    console.log('downloading video: '+info.videoDetails.title)

    res.header("Content-Disposition", `attachment;  filename=${info.videoDetails.title}.mp4`)
        let video = ytdl(url,{filter:'videoonly', quality: 'highestvideo'})
        let audio = ytdl(url, {filter: 'audioonly', highWaterMark: 1<<25});
        const ffmpegProcess = cp.spawn(ffmpeg, [
            '-ss', startTime,
            '-t', endTime,
            '-i', `pipe:3`,
            '-i', `pipe:4`,
            '-map','0:v',
            '-map','1:a',
            '-c:v', 'copy',
            '-c:a', 'libmp3lame',
            '-crf','27',
            '-preset','veryfast',
            '-movflags','frag_keyframe+empty_moov',
            '-f','mp4',
            '-loglevel','error',
            '-'
        ], {
            stdio: [
            'pipe', 'pipe', 'pipe', 'pipe', 'pipe',
            ],
        });

        video.pipe(ffmpegProcess.stdio[3]);
        audio.pipe(ffmpegProcess.stdio[4]);
        ffmpegProcess.stdio[1].pipe(res);

        let ffmpegLogs = ''

        ffmpegProcess.stdio[2].on(
            'data',
            (chunk)=>{ffmpegLogs += chunk.toString()}
        )

        ffmpegProcess.on(
            'exit',
            (exitCode)=>{
                if(exitCode === 1){
                    console.error(ffmpegLogs)
                }
            }
        )
});


  


  this process is to download and merge high quality video and audio, is there a way I can trim the video ? from start to end

  


  downloading info : WqCDI3YVnSM
downloading video : Chrstn | Odd Corner
Invalid duration specification for ss :

  


  having this error dont know the reason

  


• pydub.exceptions.CouldntEncodeError : Encoding failed

  2 décembre 2023, par asdasdasasd

  im on alpine linux and i get running into this error

  


  File "/usr/lib/python3.9/site-packages/zspotify/_main_.py", line 697, in main
    zs.start()
  File "/usr/lib/python3.9/site-packages/zspotify/_main_.py", line 672, in start
    self.download_by_url(query)
  File "/usr/lib/python3.9/site-packages/zspotify/_main_.py", line 504, in download_by_url
    ret = self.download_track(parsed_url["track"])
  File "/usr/lib/python3.9/site-packages/zspotify/_main_.py", line 332, in download_track
    output_path = self.respot.download(
  File "/usr/lib/python3.9/site-packages/zspotify/respot.py", line 66, in download
    handler.convert_audio_format(audio_bytes, output_path)
  File "/usr/lib/python3.9/site-packages/zspotify/respot.py", line 648, in convert_audio_format
    AudioSegment.from_file(audio_bytes).export(
  File "/usr/lib/python3.9/site-packages/pydub/audio_segment.py", line 970, in export
    raise CouldntEncodeError(
pydub.exceptions.CouldntEncodeError: Encoding failed. ffmpeg/avlib returned error code: -4


  


  tried running zspotify and this error popped up, it also resulted in a 0kb file with the songs title