The only issue I have with the TV is that it isn’t playing MP2 home videos without buffering. ChuckPA says that is a limitation of Plex and the engineers will hopefully provide support for that format such that it plays smoothly. Apart from that, everything works fine except playback via a PC, even with the app now installed on my pc.
So I starting messing with the settings in the PlexTV app on the Sony Bravia. Under settings, video quality, home streaming, I set it to maximum vs what the default was (20 Mpbs, 1080p HD). And everything works like a charm on the TV, including the MP2! Very happy. Just need to make it work on the PC and I’m a happy camper.
I am really surprised you are having issues with PMP as its more capable than the AndoidTV app on the Sony. Good to hear you found the setting to ensure you are Direct Play instead of forcing transcoding.
@Achilles said:
That NAS has an Apollo Lake Celeron which have 6th Gen QuickSync Video ASICs. PMS should be able to HW decode 4K HEVC HDR. I believe the OP is only trying to decode 4K HEVC SDR. Hardware transcoding should work for that.
That’s good to know. It would be great if there was a spec sheet on what we can expect using HW trans-coding, Being a user of Plex since 2012 PassMark scores have been my friend. This HW trans-coding is all new to me. How many 1080 streams can we expect to play when using HW Trans-coding?
Depends on what you are trying to transcode. Intel has some PDF floating around for QSV and how many transcodes it will handle based on input codec. You will have to google for it.
To find out about the video hardware acceleration for a specific chipset, you need to check the chipset datasheet. Intel datasheet are available publicly.
For the celeron processor J3355 and J3455, you can get the specs here:
At page 69, table 3-10, Decode and encode supports is listed.
For H.265, you can see that the chip can handle level 5.1, 8bit and 10bit, up to 4kx2k 60p
For the video stream, since the J3355 and J3455 have the same GPU, they have the same capability.
The number of concurent streams depends on several factors.
For example, Nvidia GPU has a limit of 2 streams at a time. But AMD, to my knowledge, doesn’t have restriction on that. For intel, I don’t know if there is a limit.
Also, depends if the audio needs to be transcoded or not and what is the audio codec. If you have to transcode Dolby trueHD 7.1 to AAC 2.0, this is done by the CPU and can takes a lot of processing power. It’s probably here that you we see a big difference between the J3355 and the J3455.
For example, on my DS418play (J3355), transcoding 1080p hevc 10bit with audio transcode AAC5.1 to AAC2.0 only takes 15% of the CPU. However, transcoding the same file but with Dolby trueHD 7.1 to AAC2.0 takes up to 55% of the CPU. That’s the reason why I always keep an AAC2.0 audio track along with my Dolby True HD. So if I want to stream a hevc 10bit to my phone, than I select the aac track and only the video get transcoded.
Achilles, Thanks for the info.
Congrats! J_fo,
This has been an interesting ride that I been following, I have learned something new about how great a NAS that supports HW Trans-coding can do. As a test could you run multiple 1080 streams to stress test how many users can watch at once? Please leave 4k out of the test. The Synology DS918+ maybe my new go to.
Is there any way to speed up play back speed in plex
@ksfahim said:
Is there any way to speed up play back speed in plex
No.
In the future, please create a new thread instead of hijacking a non-related existing one.
