Apache OpenMeetings [Incubating] - Howto switch between different versions of FFMPEG

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Default Configuration

FFMPEG has a change in its API (possibly since GIT revision 88bfe4518)

Since Version 1.9.x of OpenMeetings: By default OpenMeetings expects you to have a new version of FFMPEG on your OpenMeetings server installed and it will use the new API style to communicate with FFMPEG.

Switching to old FFMPEG API

If you want to switch to the old style you can change that using the config key: use.old.style.ffmpeg.map.option

Set this value to 1 to have the old params in the API call to FFMPEG.

References:

http://ffmpeg-users.933282.n4.nabble.com/Invalid-stream-specifier-0-Stream-map-0-0-matches-no-streams-Changes-in-FFMPEG-map-option-td4091165.html

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