earlvs13 0 Posted March 18, 2021 Share Posted March 18, 2021 Hello, ### Description A 4K file is being transcoded. Starts very slow, constantly hangs. But when transcoding is disabled for the user on the server the playback is flawless. Samsung 4K TV with Tizen. ### Config #### Client Samsung model number: QE43Q60T Samsung firmware version: 1465 Samsung Emby client version: 1.0.93 #### Server Asustor AS5104T Emby: 4.5.4.0 ffmpeg-transcode-931ce0d1-398d-4b04-87ae-2804c25e7432_1.txt Link to comment Share on other sites More sharing options...
SamES 890 Posted March 18, 2021 Share Posted March 18, 2021 (edited) From the log, TranscodeReasons=VideoLevelNotSupported Your video level is 5.2. As per these specs, maximum level for h264 is 5.1 Smart TV - Build | Samsung Developers Quote Video Decoder Limitations H.264 FHD: Level 4.2 supported (FMO/ASO/RS not supported). H.264 UHD: Level 5.1 supported. Unfortunately transcoding of 4K content will require good server performance. You can see from the log that conversion speed is only 0.3x the playback speed. ie: transcoding needs to be 3x faster (at a minimum) for playbeck 09:27:13.598 frame= 244 fps=9.8 q=29.0 size= 2774kB time=00:00:08.24 bitrate=2861.1kbits/s throttle=off speed=0.319x 09:27:14.225 frame= 250 fps=9.8 q=29.0 size= 2800kB time=00:00:08.45 bitrate=2814.3kbits/s throttle=off speed=0.319x 09:27:14.867 frame= 256 fps=9.8 q=29.0 size= 2819kB time=00:00:08.66 bitrate=2763.0kbits/s throttle=off speed=0.319x 09:27:15.826 frame= 261 fps=9.6 q=29.0 size= 2835kB time=00:00:08.82 bitrate=2725.5kbits/s throttle=off speed=0.314x 09:27:16.358 frame= 266 fps=9.6 q=29.0 size= 2851kB time=00:00:08.98 bitrate=2689.8kbits/s throttle=off speed=0.314x 09:27:16.941 frame= 268 fps=9.5 q=29.0 size= 2857kB time=00:00:09.05 bitrate=2673.2kbits/s throttle=off speed=0.31x Edited March 18, 2021 by SamES Link to comment Share on other sites More sharing options...
Happy2Play 8252 Posted March 18, 2021 Share Posted March 18, 2021 One of those grey areas as you say it works without transcoding, but the manual says it is above supported specs. 1 Link to comment Share on other sites More sharing options...
earlvs13 0 Posted March 18, 2021 Author Share Posted March 18, 2021 Hi there, Thanks for reply. Is there workaround, how to turn off transcoding for specified files only? Or may be specified library? Thanks again. Link to comment Share on other sites More sharing options...
Happy2Play 8252 Posted March 18, 2021 Share Posted March 18, 2021 Sorry no as the setting all or none. Link to comment Share on other sites More sharing options...
rbjtech 4223 Posted March 19, 2021 Share Posted March 19, 2021 (edited) Unless this is a 4K 60fps file - there is no need for it to be level 5.2 - 5.1 is perfectly acceptable. (4K @ up to 30 fps) There is a utility that can change the level without needing a re-encode - let me dig it out. edit - try here - https://www.videohelp.com/software/H264-AVC-Level-Editor Edited March 19, 2021 by rbjtech 1 Link to comment Share on other sites More sharing options...
Luke 37022 Posted March 19, 2021 Share Posted March 19, 2021 @SamES Link to comment Share on other sites More sharing options...
SamES 890 Posted March 19, 2021 Share Posted March 19, 2021 On 18/03/2021 at 23:46, Happy2Play said: One of those grey areas as you say it works without transcoding, but the manual says it is above supported specs. @earlvs13, have you confirmed that it does play correctly without transcoding (ie: from a USB drive connected directly to the TV) Link to comment Share on other sites More sharing options...
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