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mythtranscode corrupting recordings when transcoding …
https://code.mythtv.org/trac/ticket/8864
The output file sizes are approximately 1/3 of their normal size for typical recordings. The audio appears fine, however all but a few sporadic frames of video are gone/corrupted. Note: Some of these recordings may have been tagged for transcoding twice, i.e. mythtranscode has been run on them twice with the same settings.
No sound on LiveTV - MythTV Official Community Forum
https://forum.mythtv.org/viewtopic.php?t=358
Joined: Sun Jun 15, 2014 1:08 am. Re: No sound on LiveTV. Post. by blm-ubunet » Sat Sep 20, 2014 7:48 pm. Try setting the audio sync (OSD) back to zero & then exit FE & restart. Really need to look into the log files for FE & BE during the audio cut-out.
Sound Troubleshooting - MythTV Official Wiki
https://www.mythtv.org/wiki/Sound_Troubleshooting
No sound from mythtv, but mplayer can play sound. Seen on Fedora 12 to 13 + MythTV 0.22 to 0.23, with analog sound: Fixed by setting mixer control to Master and entering ALSA:front as audio device. ALSA:front was not in the list of audio devices so it had to be entered manually with the onscreen keyboard. Mixer control is PCM by default. ALSA device
Transcoding - MythTV Official Wiki
https://www.mythtv.org/wiki/Transcoding
Usually, it's done for a couple of reasons: Removing Commercials - decompressing a compressed video, removing the parts marked to be removed (the commercials) and re-encoding the video stream, to the original or to a different video encoder using a codec. to support devices that desire a particular format, like H.264 on handheld devices.
Mythtv MPEG-TS demux fails on playback of YLE …
https://github.com/MythTV/mythtv/issues/351
Difference found: mpegts-mythtv does pickup the second audio stream when it appears; ffmpeg-mpegts does not. The critical point is where the second audio stream is added. This happens after megabyte 68 in the original recording (the attached clip is from megabytes 65 to 75) which is at time 1:48 according to the stream analyzer.
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