Export h264 profile specifies ac3 instead of aac
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
OpenShot Video Editor |
Invalid
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Undecided
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Unassigned |
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://
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
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.