rainbow57uk
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I believe Slysoft started using Mencoder with v1.6.
I have found a couple of mencoder params that seem to be essential for Mencoder conversion to iPhone format movies. When I added these to the iPhone AVC profile in devices.ini everything works with the beta version 1.6.1.3. I can now successfully transfer movies which were not transferring before the profile was tweaked (i.e. when iTunes was saying file not transferred because iPhone could not read the format). I understand the "nocabac" parameter turns CABAC (context based adaptive arithmatic coding) off in the video stream, as this is an x264 feature that is not supported on the iPhone. The "level_idc=30" parameter tells MEncoder that we only want x264 options up to level 3.0, the top complexity limit stated in the iPod technical specs
What was changed in Devices.ini for the iPhone AVC profile
changed lavfopts=format=mp4 (from lavfopts=format=ipod) (this might not be essential, haven't had time to test without, note m4v extension files are still created)
added |nocabac|level_idc=30| into the x264params line.
Hope it works for you.
I have found a couple of mencoder params that seem to be essential for Mencoder conversion to iPhone format movies. When I added these to the iPhone AVC profile in devices.ini everything works with the beta version 1.6.1.3. I can now successfully transfer movies which were not transferring before the profile was tweaked (i.e. when iTunes was saying file not transferred because iPhone could not read the format). I understand the "nocabac" parameter turns CABAC (context based adaptive arithmatic coding) off in the video stream, as this is an x264 feature that is not supported on the iPhone. The "level_idc=30" parameter tells MEncoder that we only want x264 options up to level 3.0, the top complexity limit stated in the iPod technical specs
What was changed in Devices.ini for the iPhone AVC profile
changed lavfopts=format=mp4 (from lavfopts=format=ipod) (this might not be essential, haven't had time to test without, note m4v extension files are still created)
added |nocabac|level_idc=30| into the x264params line.
Hope it works for you.
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