4.2.2 continuous buffering problem in broadcasts

[cdguy]

@alphi00 video link? What happens? Please provide more details

[cdguy]

@kingslay please check your e-mail

[cdguy]

This issue is happening again.

I sent you the link. You have to use a VPN to open it.

the stream is active the next 2 hours

thank you!

https://github.com/kingslay/KSPlayer/assets/123307657/60fb013e-9cb1-470f-90c7-d63f7adad60f

[cdguy]

This issue is happening again.

I sent you the link. You have to use a VPN to open it.

the stream is active the next 2 hours

thank you!

2717058961870124800.mp4

@kingslay the issue happens when you watch the content "live". pre-recorded content having the same media properties does not create this issue.

https://github.com/kingslay/KSPlayer/assets/123307657/fe89a0a5-b3ae-4528-90a2-6c36ca6ba063

Also the stream is 50i; however the displayed FPS do not exeed 40fps, which is an issue

L

Thanks

[cdguy]

@kingslay sorry to spam here, but I also tried with the latest mpv release and the stream playback is very smooth

[kingslay]

@cdguy 你提供的url用vpn打不开。你能不能提供一个别的url

[cdguy]

@kingslay please check your mailbox

[kingslay]

@cdguy 你可以试下把这个方法的返回值改成是16

 open func videoFrameMaxCount(fps _: Float, naturalSize _: CGSize, isLive: Bool) -> UInt8 {
        isLive ? 4 : 16
    }

[cdguy]

@cdguy 你可以试下把这个方法的返回值改成是16

 open func videoFrameMaxCount(fps _: Float, naturalSize _: CGSize, isLive: Bool) -> UInt8 {
        isLive ? 4 : 16
    }

Unfortunately the stream ended. I will share with you a new link if my provider finds another 4:2:2 live stream

thank you

[cdguy]

@kingslay

I uploaded the recordings on put.io and the issue happens too (less but happening)

please try those links:

https://api.put.io/v2/files/1276153806/stream?oauth_token=DZON3UYBELCXTRZPTOAM

https://api.put.io/v2/files/1276158289/stream?oauth_token=DZON3UYBELCXTRZPTOAM

https://api.put.io/v2/files/1276158267/stream?oauth_token=DZON3UYBELCXTRZPTOAM

[cdguy]

@kingslay

I uploaded the recordings on put.io and the issue happens too (less but happening)

please try those links:

https://api.put.io/v2/files/1276153806/stream?oauth_token=DZON3UYBELCXTRZPTOAM

https://api.put.io/v2/files/1276158289/stream?oauth_token=DZON3UYBELCXTRZPTOAM

https://api.put.io/v2/files/1276158267/stream?oauth_token=DZON3UYBELCXTRZPTOAM

Not last but least, when you open those links with a VPN connection, the issue is happening more often

[cdguy]

@kingslay can you also please update the testflight tracy player app? Thank you!

[cdguy]

@kingslay unfortunately the bug is not fixed. I don’t get any dropped frames too. No issues in MPV

[kingslay]

有对应的url吗？

[cdguy]

You can try both @kingslay

1- https://api.put.io/v2/files/1276153806/stream?oauth_token=DZON3UYBELCXTRZPTOAM

2-

https://api.put.io/v2/files/1276158289/stream?oauth_token=DZON3UYBELCXTRZPTOAM

3-

https://api.put.io/v2/files/1276158267/stream?oauth_token=DZON3UYBELCXTRZPTOAM

[kingslay]

@cdguy [https @ 0x600003884000] HTTP error 429 TOO MANY REQUESTS [in#0 @ 0x600003390000] Error opening input: Server returned 4XX Client Error, but not one of 40{0,1,3,4}

在mac或tvos上会有这个问题吗？还是只有iOS才会

[cdguy]

@cdguy [https @ 0x600003884000] HTTP error 429 TOO MANY REQUESTS [in#0 @ 0x600003390000] Error opening input: Server returned 4XX Client Error, but not one of 40{0,1,3,4}

在mac或tvos上会有这个问题吗？还是只有iOS才会

both ios and tvos

[kingslay]

目前这几个连接打不开。报错 [https @ 0x6000018b8630] HTTP error 429 TOO MANY REQUESTS [in#0 @ 0x6000013b8700] Error opening input: Server returned 4XX Client Error, but not one of 40{0,1,3,4}

[kingslay]

把yadifMode 改成0 是不是就不会有这个问题了

[cdguy]

@kingslay on ios yes, but on tvos the issue is still there. But as you know yadif mode=1 outputs better results, and with MPV it is smooth

[cdguy]

The last commit (https://github.com/kingslay/KSPlayer/commit/9a797ca817cf2dcef3c30c3626543c714cd037e6) still did not fix it :/

[kingslay]

嗯 这个问题还没解决 因为你给的url 目前无法播放 所以 我无法debug

[cdguy]

嗯 这个问题还没解决 因为你给的url 目前无法播放 所以 我无法debug

It seems that put.io stream service is blocking connection.

if you have a remote media server, upload those 3 media files and play those file:

“Feed Satelite 4-2-2 non transcoded” “4-2-2 pure satellite feed_second video” “4-2-2 Pure Satellite Feed”

the videos are in this link: https://go.wetransfer.com/b-zvg8ImxsWw

[cdguy]

嗯 这个问题还没解决 因为你给的url 目前无法播放 所以 我无法debug

I sent you 3 private links via e-mail

you can try them @kingslay

[cdguy]

You can try both @kingslay

1- https://api.put.io/v2/files/1276153806/stream?oauth_token=DZON3UYBELCXTRZPTOAM

2-

https://api.put.io/v2/files/1276158289/stream?oauth_token=DZON3UYBELCXTRZPTOAM

3-

https://api.put.io/v2/files/1276158267/stream?oauth_token=DZON3UYBELCXTRZPTOAM

@kingslay I deleted those links because they constantly apply a bandwith limitation. you can try with the google drive links I shared with you yesterday

[kingslay]

好的

[cdguy]

I see that you update some code, if it is related to the 4:2:2 playback, may I ask you to update the tracy player testflight app? thank you

[kingslay]

跟这个没有关系。但是我有找到思路了 但是改动比较大 还要等一下

[kingslay]

@cdguy 用mpv播放的话，视频显示的是HDR10还是HDR呢？

[cdguy]

@cdguy 用mpv播放的话，视频显示的是HDR10还是HDR呢？

I will check in an hour but the links I provided are all in SDR @kingslay

[kingslay]

你提供给我的第一个url是HDR10。目前排查出问题是因为yuv422p10le的转码太慢了。导致视频播放的时候会丢帧。

Stream #0:0[0x100]: Video: h264 (High 4:2:2) ([27][0][0][0] / 0x001B), yuv422p10le(tv, bt709, top first), 1920x1080 [SAR 1:1 DAR 16:9], 25 fps, 50 tbr, 90k tbn

[cdguy]

你提供给我的第一个url是HDR10。目前排查出问题是因为yuv422p10le的转码太慢了。导致视频播放的时候会丢帧。

Stream #0:0[0x100]: Video: h264 (High 4:2:2) ([27][0][0][0] / 0x001B), yuv422p10le(tv, bt709, top first), 1920x1080 [SAR 1:1 DAR 16:9], 25 fps, 50 tbr, 90k tbn

the 3 videos I shared with you: 4-2-2 Pure Satellite Feed.ts 4-2-2 pure satellite feed_second video.ts Feed Satelite 4-2-2 non transcoded.ts

they all have the BT709 colour range. and this colour range is SDR

[cdguy]

你提供给我的第一个url是HDR10。目前排查出问题是因为yuv422p10le的转码太慢了。导致视频播放的时候会丢帧。

Also this finding might you help:

If I play those video stored locally (apple files app) with my iphone device, there are no dropped frames However if I play those files via a remote server (like the google links I sent you) you see the dropped frames @kingslay

[cdguy]

Here is the difference @kingslay

https://github.com/kingslay/KSPlayer/assets/123307657/06669f9b-845e-4746-bbbe-6bea1007ba6d

https://github.com/kingslay/KSPlayer/assets/123307657/61639d96-0d18-483a-9889-94623e20d6b0

[kingslay]

@cdguy 我尝试修复了下。也更新tf包了 你试下

[cdguy]

@cdguy 我尝试修复了下。也更新tf包了 你试下

can you please update the tracy player testflight app? I have a few friends who can try new 4:2:2 live stream thank you for your hard work!!

[kingslay]

testflight 更新好了

[kingslay]

@cdguy 用新的testflight包 ，效果怎样呢？还有问题吗？

[cdguy]

It is almost perfect, but now there are random dropped frames.

it does not matter if the content is played locally (via apple files app) or remotely.

i will send you the video link via e-mail

thanks!

https://github.com/kingslay/KSPlayer/assets/123307657/a0068fd0-0699-49c4-8945-01943f09011d

[kingslay]

是的，这个就是我之前说的转像素格式耗时太多，导致视频帧滞后，所以才会丢帧。苹果无法直接显示yuv422p10le这样的像素格式。这个目前还找不到解决方案。mpv也会存在丢帧的情况吗？

[cdguy]

是的，这个就是我之前说的转像素格式耗时太多，导致视频帧滞后，所以才会丢帧。苹果无法直接显示yuv422p10le这样的像素格式。这个目前还找不到解决方案。mpv也会存在丢帧的情况吗？

Yes you told me; with MPV there are no issues, there are no frame losses

[alphi00]

I am not a developper, I can only test if you update the testflight app; can you update it? Thanks

[kingslay]

好的 我更新下

[alphi00]

Thanks

[cdguy]

@kingslay

if I use Yadifx2 I will get random frame losses; however if I use "Yadifx2 Spatial Skip" (mode=3) everything is perfect

[kingslay]

@cdguy 是那个视频会有这个问题呢？你把视频发给我

[cdguy]

是那个视频会有这个问题呢？你把视频发给我

I finally had the opportunity to record a stream. The dropped frames are happening when you use the yadif x2 and yadif x2 spatial skip. No dropped frames when I use MPV

[kingslay]

我试着优化了下性能。@cdguy 你可以试下。

[cdguy]

我试着优化了下性能。@cdguy 你可以试下。

also please update tracy player testflight, I will run tests with other friends who can only have access to testflight Thank you

[kingslay]

好的，我现在就更新下。