Prior to using MCEBuddy to remove commercials, I was using an automated utility to convert .WTV files to .DVR-MS format. These files play using MCE, WD TV Live Plus and on a PS3.
Per a previous discussion, I've been using the WTV Unprocessed profile as the least resource intensive and still compatible with MCE Recorded TV conversion.
The problem I ran into is that while apparently the WTV format has ac3 audio, after being processed neither the WD TV Live nor the PS3 will recognize the audio. As perhaps a side note of interest, I have also found that the open source MediaInfo does
not report on ac3 audio in these containers, odd that all would have the same issue.
I've been playing with the WTV profile to see if I can force it to convert the audio only to another format, so far mp2 seems to work in that it plays consistently and is reported by MediaInfo the problem is that play back on all three devices shudders.
Looking over the MediaInfo of one of the original programs that plays well and one that I've converted, almost everything looks identical as far as video except this stand out, frame rate is 29.970 fps on both, but on the original media nominal frame
rate is 59.940 fps, on the converted media nominal frame rate is 15.000 fps.
I have to suspect that it is the mp2 audio that is influencing the low nominal frame rate and that it would make sense that a low frame rate would produce a shuddering play back effect. I also noticed that the audio bit rate in MediaInfo is listed
as Constant and cannot help by think it should be variable to match the variable video?
ffmpeg-general=-async 1 -threads 0
ffmpeg-video=-ss 3 -vcodec copy
ffmpeg-audio=-acodec mp2 -ab 224k -ac 2
ffmpeg-audioac3=-acodec mp2 -ab 224k -ac 2
Having a difficult time finding information on options for the ffmpeg-audioac3 parameter which I suspect needs adjustment. Any insights appreciated.