With the latest versions of Plex (both 1.3.3.3148-b38628e and the 1.4 Redux) transcoding of MPEG-TS streams on Fedora 25 fails with.
Note: I know tvheadend is unsupported, but this same issue shows up on other plugins as well such as Mythtv and other live tv plugins.
Downgrading to 1.2x versions works. Seems like this is related to the transcoder. currently the first real error is:
The interesting errors are stuff starts below:
HARDWARE TRANSCODER ENABLED:
Jan 17, 2017 22:23:47.985 [0x7fba14fff700] DEBUG - It took 0.0 sec to serialize a list with 0 elements.
Jan 17, 2017 22:23:47.985 [0x7fba13fff700] DEBUG - Completed: [::ffff:127.0.0.1:40830] 206 PUT /video/:/transcode/session/3hqf45q9pr4qrisssrthaaif/progress?width=1280&height=720 (18 live) 0ms 326 bytes
**Jan 17, 2017 22:23:47.991 [0x7fba047ff700] **ERROR - [Transcoder] [mpeg2_qsv @ 0x2fb6ba0] Error initializing an internal MFX session (error=-3)HARDWARE TRANSCODER DISABLED:
Jan 17, 2017 22:29:27.309 [0x7fba13fff700] DEBUG - Completed: [::ffff:127.0.0.1:46974] 206 PUT /video/:/transcode/session/0hmmt5lov5l8spbbqsb75sif/progress?index=2&id=53&codec=ac3&type=audio (12 live) 0ms 227 bytes
Jan 17, 2017 22:29:27.310 [0x7fba047ff700] ERROR - [Transcoder] [mpeg2video @ 0x27cb0e0] Invalid frame dimensions 0x0.
Jan 17, 2017 22:29:27.310 [0x7fb9f17f8700] ERROR - [Transcoder] [mpeg2video @ 0x27cb0e0] Invalid frame dimensions 0x0.
Logs Attached.