The problem is that MPEG2 TS .mpg recordings play fine, but after transcoding, the resulting MPEG4
.nuv file always appears as 4:3, I have to manually force VLC or MPC to 16:9 mode.
I'm wondering if dsymth is not able to detect the aspect ratio in the .nuv file?
I think that the aspect ratio is in the MPEG2 stream for .mpg files, and the MPEG2 decoder picks it up fine, but I *believe* that the transcoded MPEG4 file does not have the aspect ratio in the MPEG4 stream, but rather in the .nuv container.
Does anyone know any different, or have any ideas, etc.?
Thanks,
Ian.
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the problem with the nuv format is that there is no way to properly specify the aspect ratio.
remember that the aspect can change in a recording (commercial break, start/end of show and so on)
there is one field in the nuv file header for aspect ratio, but this is always set to 4:3 by mythtv.
what you can do is to specify a resolution that is 16:9 when you transcode it, or if it's possibel to convince mythtvs transcoder to add black bars to the transcoded file.
but i haven't tried this myself since i don't transcode my recordings.
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Hi,
I'm having problems with detection of the aspect ratio when playing nuv files through dsmyth.
This thread documents my efforts so far to unearth the problem: http://www.gossamer-threads.com/lists/mythtv/users/186083
The problem is that MPEG2 TS .mpg recordings play fine, but after transcoding, the resulting MPEG4
.nuv file always appears as 4:3, I have to manually force VLC or MPC to 16:9 mode.
I'm wondering if dsymth is not able to detect the aspect ratio in the .nuv file?
I think that the aspect ratio is in the MPEG2 stream for .mpg files, and the MPEG2 decoder picks it up fine, but I *believe* that the transcoded MPEG4 file does not have the aspect ratio in the MPEG4 stream, but rather in the .nuv container.
Does anyone know any different, or have any ideas, etc.?
Thanks,
Ian.
the problem with the nuv format is that there is no way to properly specify the aspect ratio.
remember that the aspect can change in a recording (commercial break, start/end of show and so on)
there is one field in the nuv file header for aspect ratio, but this is always set to 4:3 by mythtv.
what you can do is to specify a resolution that is 16:9 when you transcode it, or if it's possibel to convince mythtvs transcoder to add black bars to the transcoded file.
but i haven't tried this myself since i don't transcode my recordings.