linux-traipu team mailing list archive

[Cenwen <eolinwen@xxxxxxxxx>]

According wikipedia (http://en.wikipedia.org/wiki/Comparison_of_container_formats), you can associated audio MP3, WMA,  AAc and AC3 and DT-s. It is not an obligation to use AAC with H264. 
Why this choice instead of AAC ? For legal reasons (need a special versionof FFmpeg  for common users (Medibuntu or Sven'PPA). Another reason is this format is know on every kind of hardware, more than AAC.
But we know that our export screen is not perfect and we'll work on when it will be the moment.
Thanks.

** Changed in: openshot
       Status: New => Invalid

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AL - BR, which is subscribed to OpenShot Video Editor.
https://bugs.launchpad.net/bugs/1032780

Title:
  Export h264 profile specifies ac3 instead of aac

Status in OpenShot Video Editor:
  Invalid

Bug description:
  I've been editing a source file from an Xacti HD-1010 720p 29.97, that
  conforms with MPEG-4 AVC/H.264 and MPEG-4 audio (AAC compression).  I
  had exported a file using the HD 720p 29.97 fps profile, which seemed
  to play fine.  When I used Handbrake to downsample the video further,
  I noticed pumping noises in the audio.

  Looking at the Openshot profile for HD 720p 29.97 fps, I notice that
  the default audio codec is ac3.  My reading at
  http://www.networkedmediatank.com/showthread.php?tid=12602#pid106960
  says that "The official mp4 standards does not include AC3 as an
  intended audio stream in the mp4 container. You are creating a non
  standard file when you include 5.1 AC3 in an mp4 container".

  I have changed the setting for the audio codec to be aac, manually.
  You might save some effort for future people by correcting this
  profile.  Thanks.

  
  Xubuntu 12.04, Openshot 1.4.0-1ubuntu1, libmlt 0.7.6+git20120204-2

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