Slow to start iPhone video (tested in TracyPlayer) about ksplayer HOT 13 CLOSED

你后面给的URL可以复现这个问题了

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不是所有的mov都会有这个问题，就iPhone手机拍的才会。我也试着要用range来进行判断。但是无法获取range的信息。所以你可能需要用avplayer来进行播放。我的项目有提供了一个avplayer的实现。

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这个问题你可以用最新的代码试下，应该不会那么慢了。

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这个url打不开，报错
Unable to negotiate TLS/SSL session: -9806
https://neckaros.000webhostapp.com/test.mov: Input/output error
我用vlc也是打不开

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It plays in VLC from my country:

Maybe it's blocked in mine?
I have the same issue on my personal server but it's not public so i found this free host. Maybe you have some place else where i can share it with a direct link?

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你可以把url发到我的邮箱。我的邮箱在reademe 里面有写

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I think i found a solution. I took another smaller video and uploaded it to Github:
https://github.com/neckaros/KSPlayer/raw/develop/2.mov

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Tell me if you are able to reproduce with this link otherwise I will email you

Thanks

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找到原因了 因为ffmpeg在下载mov视频的时候 分成很多段进行下载。所以导致很慢。而vlc只分为两段来下载。我看mpv也是分为很多段下载。 这个需要ffmpeg进行处理下 你可以用ffplay播放 也会有这个问题

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Thanks!
I think they found a solution here: https://stackoverflow.com/questions/61652486/ffmpeg-making-requests-for-each-frame-when-decoding-a-stream-slow-performance

not sure it apply for your implementation ?

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这个解决方案对于mov的视频是可以，但是在播放其他视频的，就会出问题了。而且不好控制buffer_size。当用户拍摄的mov视频很大，超过buffer_size的大小的话。那还是会继续卡顿

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thanks again for all your help!

Would it be possible to apply only on MOV containers and obtain the buffer size like he said:
You can get that value from the second network request bytes range when you are opening the format context (first network request is made with bytes range 0-* and then the second network request is made with bytes range XXXX-* where XXXX should be the buffer size)
From that and what he says: not the whole video is necessary but the first part of audio only ?

i can fallback to iOS or VLC player but I guess iPhone video over network would often be used on an iOS player

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Letting AVPlayer as the primary player is indeed a good workaround

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