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• pthread_frame : use the AVFrame API properly.

  9 novembre 2013, par Anton Khirnov

  pthread_frame : use the AVFrame API properly.
  Remove the extended_data workaround, all decoders should now handle this
  
  properly.
  

  • [DH] libavcodec/pthread_frame.c

• Issue when concatenating mkvs using ffmpeg : How to set timestamps properly ?

  29 janvier 2017, par a-goonie

  I’ve attempted to concatenate 2 mkv videos with ffmpeg, using the following commands :

  ffmpeg -i file-01.mkv -f mpegts -c copy -bsf:v h264_mp4toannexb file-01.mpeg.ts
  
  ffmpeg -i file-02.mkv -f mpegts -c copy -bsf:v h264_mp4toannexb file-02.mpeg.ts
  
  ffmpeg -isync -i "concat:file-01.mpeg.ts|file-02.mpeg.ts" -f matroska
  
  -c copy output.mkv

  However, I receive the following error :

  [matroska @ 0x7fc72a000600] Timestamps are unset in a packet for stream 0. This is deprecated and will stop working in the future. Fix your code to set the timestamps properly
  [matroska @ 0x7fc72a000600] Can’t write packet with unknown timestamp
  av_interleaved_write_frame() : Invalid argument

  How do I go about setting the timestamps ?

• Need help working ffmpeg in php

  15 mars 2015, par Lukas Kane

  I am working on a video uploading site. I have never converted videos from other users though. All signs point towards using ffmpeg, but I am honestly lost. I have installed it properly within my htdocs folder in my xampp folder, and I have the upload file php setup correctly, because it does upload the video file and moves the file to the right folder. I do have what I would think to be working ffmpeg code within the php code, but it is not working. I need to make all the files .mp4 no matter what the input file format is. I would appreciate someone helping to figure out my problem so much.

  "htdocs\new-video\upload\index.php" is where I have the code for ffmpeg and uploading the file. The htdocs\phpffmpeg\ folder is just the regular structure of phpffmpeg and ffmpeg installation.

  This is the code for the uploading and ffmpeg exec.

          $name = $_FILES["file"]["name"];
  
          $temp = explode(".", $_FILES["file"]["name"]);
  
          $extension = end($temp);
  
  
  
          move_uploaded_file($_FILES["file"]["tmp_name"],
  
          "(my file location that I move the file to)" . $_FILES["file"]["name"]);
  
  
  
          shell_exec("ffmpeg -i $name.$extension -b 1500k -vcodec libx264 -vpre slow -vpre baseline -g 30 $name.mp4");

  Like I said, the uploading and moving to folder works just fine. It is the not converting that is the problem. All links, tips, and information are greatly appreciated. Hope everyone has a great day.