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• avcodec/hevc_ps : fix storage type for some PPS multilayer extension fields

  17 avril 2023, par James Almer

  avcodec/hevc_ps : fix storage type for some PPS multilayer extension fields
  The spec states that the range of values for them is −2^14 to 2^14 − 1, inclusive.
  Signed-off-by : James Almer <jamrial@gmail.com>
  

  • [DH] libavcodec/hevc_ps.h

• "Output stream closed" when streaming PassThrough stream to AWS using @aws-sdk/lib-storage

  5 avril 2023, par cjd

  I am attempting to stream a PassThrough stream directly to S3 using @aws-sdk/lib-storage.

  


  My upload function is :

  


  const uploadStreamToS3 = () => {
    const Key = 'test.mp4';
    const Bucket = 'bucket-name';
    const stream = new PassThrough();
    const upload = new Upload({
        client: s3Client,
        params: { Bucket, Key, Body: stream },
        tags: [], // optional tags
        queueSize: 4, // optional concurrency configuration
        partSize: 1024 * 1024 * 5, // optional size of each part, in bytes, at least 5MB
        leavePartsOnError: false // optional manually handle dropped parts
    });
    return {
        stream,
        uploadComplete: upload.done(),
        upload
    };
};


  


  I am piping from ffmpeg directly to the PassThrough stream :

  


          ffmpegInstance
            .addOutputOptions(
                '-movflags +frag_keyframe+separate_moof+omit_tfhd_offset+empty_moov'
            )
            .format('mp4')
            .pipe(stream, { end: true });


  


  When I run this locally, everything works.

  


  I am using a container lambda function with Docker.

  


  If I run the Docker container locally, everything works as expected. If I run the same code on Lambda, I get the following error Output stream is closed.

  


  One work around is to write the file to the Lambda tmp folder using a writeStream and once the file is written I can stream the file to S3 using a readStream as the Body of new Upload. However, I would like to stream directly to S3 and not create this temporary file in Lambda.

  


  Is this possible ? Is the issue with using a PassThrough stream in the Body for S3 ?

  


• fftools/ffmpeg_mux_init : stop using OptionsContext as storage in copy_metadata()

  18 octobre 2022, par Anton Khirnov

  fftools/ffmpeg_mux_init : stop using OptionsContext as storage in copy_metadata()
  It should be input-only to this code. Will allow making it const in
  
  future commits.
  

  • [DH] fftools/ffmpeg.h
  • [DH] fftools/ffmpeg_mux_init.c