What is streaming profile for in V5?

[Paulo]

Thanks to a great and very useful option, I MUST test it tomorrow

[mvallevand]

@Paulo thank you, but be aware this is still not accepted code and I am still trying to work around some unexpected behaviour in Kodi. I am very interested in user feedback.

Martin

[mvallevand]

Here is an updated link https://jenkins.kodi.tv/blue/organizatio.../artifacts with some changes that won't impact how this addon works. The win32 build did build in this go round, the build system is hit & miss but it is great for me working in Ubuntu and testing in Windows.

Martin

[Paulo]

@mvallevand
Thanks, I can see that these are fresh compilations, I will leave them for the morning

I couldn't stand it and I had to check it

hls - fast test, 720p / bitrate 2500 encoding
a small clip that lasts a few seconds and works - I will do it with log tomorrow

MPEG-TS (M2TS) - completely suspends kodi on various variants - I will do it tomorrow with log



some channels turn off when stop recording

[mvallevand]

On startup Kodi does block for about 5-10 seconds while the server buffers but after that playback should normalize. I don't really understand your comment so I will wait for the logs to help me relate.

Martin

[aderlopas]

Found the option in the Live Stream, thanks for the hint.

So far I tested on Windows 10 Pro 64bit with latest Kodi 19 nightly and Nxtpvr addon: 4.3.0 (My NextPVR Server is a Beelink BT3 Pro TV Box (Intel Atom X5-Z8500 4GB/64GB ) with Windows 10 Pro 64bit and latest V5 Server) over WAN:

1080p (4000 kbps) and it worked originally but soon it introduces pauses and at some point in time Kodi froze and ffmpeg at the server-side crashed  (ffmpeg.exe 32bit 89% - 96% CPU) on transcoding 1920x1080i50 lines H.264 channel -- uploading logs but didn't manage to reproduce the ffmpeg crash
720p (2500 kbps) and it works  (ffmpeg.exe 32bit 85% - 95% CPU) on transcoding 1920x1080i50 lines H.264 channel
480p (1000 kbps) and it works  (ffmpeg.exe 32bit 80% - 90% CPU) on transcoding 1920x1080i50 lines H.264 channel
360p (750 kbps) and it works  (ffmpeg.exe 32bit 65% - 85% CPU) on transcoding 1920x1080i50 lines H.264 channel

So some comments below:
1. I am totally ignorant on how pictures and streams work and best possible value combinations for lines and bitrates, but assuming that google are quite expert on those I would suggest that we add:
    minimum option: 240p for lines supported and lowest bitrate 300kbps and maximum bitrate to 6000 kbps (so far maximum that can be set for 1080p is 4000 kpbs)
2. As many people like me will be totally ignorant on the combination of those two, I would suggest to automatically suggest default bitrate that matches the lines selected as per Google recommended values below:

 Lines                 240p      360p        480p        720p        1080p
Resolution      426 x 240  640 x 360  854x480    1280x720    1920x1080
Video Bitrates               
Maximum        700 Kbps    1000 Kbps  2000 Kbps  4000 Kbps  6000 Kbps
Recommended    400 Kbps    750 Kbps    1000 Kbps  2500 Kbps  4500 Kbps
Minimum        300 Kbps    400 Kbps    500 Kbps    1500 Kbps  3000 Kbps

3. I see as per analysis done by Android Authority (see table at https://www.androidauthority.com/how-muc...se-964560/ picture uploaded) 
   That frame rate may also be varying, should we also exposing the frame rate for selection?

4. Of course if we can make all this work together with timeshift it would be awesome!


I hope that helps, let me know if you want me to do any other test...

[mvallevand]

Hi, thanks for the feedback,

First is the ffmepg usage is way too high for a good experience. Changes in the next version might help, For comparison my small main 2 core linux server is about 25% and my i5 test box is 9%.

I am concerned about the PC since especially as it is fanless, it is probably throttling on top of high CPU.

Your kodi log is set for maximum resolution and bandwidth. Why would you want that or higher Internet? A better test is mid range at 576 1000kbps.

The horizontal resolutions in the picklist 360, 480, 720, 1080 values work out to be the same as what google recommends. Sub offers two more 504 and 576. I agree that a lower option would help, but again the issue for the WAN uses is bitrate more than scaling I didn't put the vertical resolution in the pick list to make it easier to code.

Martin

[aderlopas]

Dear Martin,

Thank you for your reply.I know indeed I need a box with a more powerful CPU but as usual...my budget is very low 

The logs were provided for the test of 1080p that was pausing and eventually crasing (although not reproduced) ffmpeg.exe. As such I set to the highest bitrate that addon allows me as it is closer to the 4500 kbps that is google recommended value.....

Otherwise, yes, I will most likely use the lowest values during travel so that I get no pausing during streaming

Thanks and regards

[mvallevand]

@mvallevand
MPEG-TS (M2TS) - completely suspends kodi on various variants - I will do it tomorrow with log

The issue with the files in the logs you sent me are not the same but they both seem backend related.    Can you watch them in the browser interface?



1- The file you indicate was m2ts failed likely because NextPVR directly downloaded it, I am guessing sub needs to use  different command line for m2ts packet size.


2020-01-19 14:57:05.078 [DEBUG][63] Incorrect stream type...will fail

2 - The hevc file is failing because your PC isn't close to being powerful enough able to software decode it in real

2020-01-19 15:16:50.868 [DEBUG][69] [FFMPEG]: frame=  29 fps=7.2 q=25.0 size=N/A time=00:00:00.66 bitrate=N/A speed=0.163x

Martin

[mvallevand]

Thank you for your reply.I know indeed I need a box with a more powerful CPU but as usual...my budget is very low 

The logs were provided for the test of 1080p that was pausing and eventually crasing (although not reproduced) ffmpeg.exe. As such I set to the highest bitrate that addon allows me as it is closer to the 4500 kbps that is google recommended value.....

Otherwise, yes, I will most likely use the lowest values during travel so that I get no pausing during streaming

Ok thanks I thought you weren't able to stream.    I use a sub $200 PC to an well understand the budget issue.  The budget impacts my ability to use this feature when travelling, I always seem to get the room with the worst wifi.

I don't see why you are having trouble with selecting the resolution in Kodi though, it seems to be the same as YouTube.  Is it just because I don't show the p?

Martin