spacepaste

  1.  
  2. The basic task is:
  3. - to receive a video track and an audio track
  4. - to insert a certain length of black at the start of the video track
  5. - if the audio is longer, to freeze the last frame of the video track until the audio has completed
  6. - to insert content into the audio track
  7. - to merge the audio track into the video track
  8. There are a couple of complications:
  9. - sometimes we receive just a video track, in which case we have to split off the audio Stream and use that
  10. - the content is ultrasonic, so it's important this information is not lost (I believe we can use .aac with .mp4)
  11.