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• GStreamer x264enc Buffered Frames are Sped-Up after EOS Event

  31 janvier 2024, par user21956843

  After sending EOS, the encoder sends its buffered frames down the pipeline, but the playback of those last 2s of footage is sped up.

  


  Pipeline :

  


  autovideosrc [avfvideosrc] ! clockoverlay ! videoconvert ! video/x-raw,format=I420 !
x264enc bframes=0 bitrate=512 ! video/x-264,stream-format=avc,alignment=au,framerate=20/1 ! kvssink


  


  The application plays the pipeline for 10s, then sends an EOS event on the source element. The custom sink kvssink streams frames to cloud storage, the playback of this 10s of footage is fine except for the encoder's 2s of buffered frames that were sent out after the EOS event being sped up. How can I correct this ?

  


• node-fluent-ffmpeg conversion to mp3 does not fire any "end" or "finish" event

  27 février 2024, par 1voy

  I am downloading a video using ytdl-core and converting it to mp3 using node-fluent-ffmpeg. It seems that the code after the ffmpeg conversion gets executed before the conversion finishes as trying to upload the .mp3 file to a Google Cloud Storage bucket throws an error. I am trying to detect 'end' or 'finish' events but none are being triggered.

  


  Code :

  


  ytdl(url?.toString() as string)
    .once('data', (data) => {
      console.log('start', data);
    })
    .on('progress', async function (progress, downloaded, total) {
      console.log(parseInt(((downloaded / total) * 100).toString()) + '%');
      
    })
    .on('finish', async function () {
      console.log('Download finished...');
      
      console.log('using ffmpeg to convert into mp3');
      Ffmpeg({ source: `/Users/user/project/server/output/${videoId}.mp4` })
        .setFfmpegPath(ffmpeg.path)
        .toFormat('mp3')
        .saveToFile(`/Users/user/project/server/output/${videoId}.mp3`)
        .on('finish', () => {
          console.log('finished conversion');
        });
      console.log('after ffmpeg mp3 conversion');

      const storage = new Storage({
        keyFilename: `./key.json`,
      });

      const bucketName = 'bucketname';
      const bucket = storage.bucket(bucketName);
      let mp3_url;
      console.log(
        fs.existsSync(`/Users/user/project/server/output/${videoId}.mp3`)
      ); // returns false
      bucket.upload(
        `/Users/user/project/server/output/${videoId}.mp3`,
// Error uploading: Error: ENOENT: no such file or directory, open '/Users/me/project/server/output/RMvenf7E-Dg.mp3'
        {
          destination: `${userId}/${videoId}.mp3`,
        },
        function (err, file) {
          if (err) {
            console.error(`Error uploading: ${err}`);
          } else {
            console.log(`mp3 uploaded to ${bucketName}.`);
            console.log(file?.publicUrl());
          }
        }
      );

      
    .pipe(
      fs.createWriteStream(`/Users/me/project/server/output/${videoId}.mp4`)
    );

  console.log('after download and conversion');

  req.on('close', async () => {
    res.end();
  });


  


  Error uploading: Error: ENOENT: no such file or directory, open '/Users/polo/makeklips/server/output/RMvenf7E-Dg.mp3'
[1] /Users/me/project/server/node_modules/.pnpm/fluent-ffmpeg@2.1.2/node_modules/fluent-ffmpeg/lib/processor.js:182
[1]           handleExit(new Error('ffmpeg exited with code ' + code));
[1]                      ^
[1] Error: ffmpeg exited with code 1: Output #0, mp3, to '/Users/me/project/server/output/RMvenf7E-Dg.mp3':
[1] Output file #0 does not contain any stream


  


• avutil/error : Add HTTP 429 Too Many Requests AVERROR code

  22 avril 2024, par Derek Buitenhuis

  avutil/error : Add HTTP 429 Too Many Requests AVERROR code
  This is a common error code from e.g. CDNs or cloud storage, and
  
  it is useful to be able to handle it differently to a generic
  
  4XX code.
  Its source is RFC6585.
  Signed-off-by : Derek Buitenhuis <derek.buitenhuis@gmail.com>
  

  • [DH] libavutil/error.c
  • [DH] libavutil/error.h
  • [DH] libavutil/version.h