Avideo: HLS Resolutions

[Donnerstein]

On the demo page there are 4 instead of the usual 3 resolutions, and the naming of these is not done in the HLS plugin.
How does that come?

[akhilleusuggo]

There's an automatic detection of quality . https://github.com/WWBN/AVideo/wiki/VideoHLS-Plugin#automatic-encoding-process-hls-only

On the hls /object/Format.php
If you delete the command line ( on your encoder configuration ) , will use the encoder automatic detection .

$command = 'ffmpeg -i {$pathFileName} ';
            $command .= ' -c:v h264 -vf scale=-2:240 -r 24 -g 48 -keyint_min 48 -sc_threshold 0 -bf 3 -b_strategy 2 -minrate '.(200).'k -crf 23 -maxrate '.(450).'k -bufsize '.(600).'k -c:a aac -b:a 128k -f hls -hls_time 6 -hls_list_size 0 -hls_key_info_file {$destinationFile}keyinfo {$destinationFile}res240/index.m3u8';

            foreach ($resolutions as $key => $value) {
                if ($height >= $value) {
                    $rate = $bandwidth[$key]/1000;
                    $command .= ' -c:v h264 -vf scale=-2:'.$value.' -sc_threshold 0 -bf 3 -b_strategy 2 -minrate '.($rate*0.5).'k -crf 23 -maxrate '.($rate*1.5).'k -bufsize '.($rate*2).'k -c:a aac -b:a '.($audioBitrate[$key]).'k -f hls -hls_time 6 -hls_list_size 0 -hls_key_info_file {$destinationFile}keyinfo {$destinationFile}res'.$value.'/index.m3u8';
                }
            }

If your video is 1080 , then will transcode to 240,360,480,720 and 1080

This is an example of 4K video :

[ronaldod]

There's an automatic detection of quality . https://github.com/WWBN/AVideo/wiki/VideoHLS-Plugin#automatic-encoding-process-hls-only

On the hls /object/Format.php
If you delete the command line ( on your encoder configuration ) , will use the encoder automatic detection .

$command = 'ffmpeg -i {$pathFileName} ';
            $command .= ' -c:v h264 -vf scale=-2:240 -r 24 -g 48 -keyint_min 48 -sc_threshold 0 -bf 3 -b_strategy 2 -minrate '.(200).'k -crf 23 -maxrate '.(450).'k -bufsize '.(600).'k -c:a aac -b:a 128k -f hls -hls_time 6 -hls_list_size 0 -hls_key_info_file {$destinationFile}keyinfo {$destinationFile}res240/index.m3u8';

            foreach ($resolutions as $key => $value) {
                if ($height >= $value) {
                    $rate = $bandwidth[$key]/1000;
                    $command .= ' -c:v h264 -vf scale=-2:'.$value.' -sc_threshold 0 -bf 3 -b_strategy 2 -minrate '.($rate*0.5).'k -crf 23 -maxrate '.($rate*1.5).'k -bufsize '.($rate*2).'k -c:a aac -b:a '.($audioBitrate[$key]).'k -f hls -hls_time 6 -hls_list_size 0 -hls_key_info_file {$destinationFile}keyinfo {$destinationFile}res'.$value.'/index.m3u8';
                }
            }

That piece of code you pasted is it already there or do we need to add this ?

[akhilleusuggo]

already there

[Donnerstein]

Insane, can the automatic be limited? 1080p would be enough for me, otherwise people would destroy my memory and bandwidth.

[akhilleusuggo]

@Donnerstein Well , first they need to have 4K videos to make the encoder go 4K .
I did not tested it , but you could remove some lines to do so .

Source : https://github.com/WWBN/AVideo-Encoder/blob/master/objects/Format.php#L234

static private function preProcessDynamicHLS($pathFileName, $destinationFile) {
            $height = self::getResolution($pathFileName);
            $resolutions = array(360, 480, 720, 1080, 1440, 2160);
            $bandwidth = array(600000, 1000000, 2000000, 4000000, 8000000, 12000000);
            //$videoBitrate = array(472, 872, 1372, 2508, 3000, 4000);
            $audioBitrate = array(128, 128, 192, 192, 192, 192);
            $parts = pathinfo($destinationFile);

You could try by removing
$resolutions 1440 , 2160
$bandwidth 8000000, 12000000
$audioBitrate 192, 192

Basically the last 2 variables of each line . Did not tested , Daniel need to answer to this @DanielnetoDotCom

[ronaldod]

You could try by removing
$resolutions 1440 , 2160
$bandwidth 8000000, 12000000
$audioBitrate 192, 192

Basically the last 2 variables of each line . Did not tested , Daniel need to answer to this @DanielnetoDotCom

If that works make also then pulldown option in the encoder configuration to make it dynamic configurable.

[akhilleusuggo]

I don't think that's possible
It's hard-coded

[Donnerstein]

I understood that to remove it from the configuration.
But it does not work. The processing is then immediately finished without errors, but no video data is transferred to the streamer side.
The resolutions are recognized and also displayed in the player, but there is no video data.

[ronaldod]

I have it tested and it works good for me. And i tested it with youtube file on 4K coded in webm. After 2 seconds a crash. What was the resolution and type of the file you wanted to encode ?

[Donnerstein]

maybe it's because of the files, I've used different files. on the demo side, there is the same problem.
Mp4 files, but they are fine and can be played easily.

https://demo.avideo.com/video/267/4k_video_relaxing___ultra_hd_tv_test_2160p_20_minutes_hd?channelName=TheAdminChannel

[akhilleusuggo]

make sure it's not stuck at /tmp
Also , this could be unreal , but if hls can't detect the video's duration may not play properly .
Try by updating disk usage

Also clear the cache

[Donnerstein]

154/5000
That does not change anything, but I also think that it is the encoder itself, the processing takes no more than 1 second. I don't think it will be encoded.

[akhilleusuggo]

have you removed this lines ?

$resolutions 1440 , 2160
$bandwidth 8000000, 12000000
$audioBitrate 192, 192

[Donnerstein]

not yet, I wanted to try it out first

[DanielnetoDotCom]

have you removed this lines ?

$resolutions 1440 , 2160
$bandwidth 8000000, 12000000
$audioBitrate 192, 192

@akhilleusuggo is correct, it may do the trick. but you may have problems in future updates as long as you changed the code.

[ronaldod]

Would be useful to make a max resolution. This also useful for starter sites with smaller storage or for site owners who prefer the message of the video above the quality.

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