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YePpHa / YouTubeCenter

YouTube Center is a userscript designed to expand the functionality of YouTube. It includes the ability to download the video you're watching, auto selecting your preferred video quality and much more.
MIT License
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Dash playback isnt working in html5 #1552

Open XeiXion opened 9 years ago

XeiXion commented 9 years ago

i checked the stats for nerd and it shows up as DASH: yes (243/140) but it still loads the entire video.

i want dash because i usually switch to another video if i don't like it and i have download limit so a lot of data would be wasted if i loaded the entire video and just watched like a minute or two. it works on the flash player but my flash is having some problems with youtube idk why

XeiXion commented 9 years ago

well in the flash player with dash on it was like while paused it will buffer to a certain point and only buffer further while the video is playing

Example: playing video > keeps buffering to a limit and then to the next > paused > stops buffering when it reaches a limit

so while playing it wont load the entire video only like it will keep a 1 minute or something margin of buffer always

idk if i explained it well :/

Lucatir commented 9 years ago

It always has buffered at least somewhat even if DASH has been enabled as far as I recall. You can try setting custom buffer settings from Player -> General and see if that works for you.

XeiXion commented 9 years ago

custom buffer is doing nothing for me if i dint explain it well i made a 20 sec video showing how it was https://www.youtube.com/watch?v=aQhx6h5QP64&feature=youtu.be

allbetsareoff29 commented 9 years ago

I have the opposite problem. Newest Dev build. Dash=yes. HTML5. custom buffer=yes. slider 90% to the right.

video only buffers 20 seconds (as per dash) but then stops and does not buffer to the specified size by the buffer slider

Leonick commented 9 years ago

Same as OP. Dash playback doesn't work with HTML5 player. Only gets worse as prevent auto-buffer and custom buffer size doesn't work either...

Lucatir commented 9 years ago

Like I said, even when you have DASH enabled, it still buffers some of the video instead of all of it like was the case in non-DASH videos.

Anyway, if you indeed have set DASH enabled and still your whole video gets buffered, I don't really know what would cause it. Just out of curiosity, what do you see when you go to youtube.com/html5 ?

@allbetsareoff29 please create a new issue report for your issue, but before that check if one already exists by using the search.

Leonick commented 9 years ago

OK, loaded a video and just let it sit there to see how much it loaded. It didn't actually load the whole video, but it loaded way more than DASH usually does. Out of a 16 minute video it loaded about 7 minutes and 30 seconds and I don't have custom buffer on or anything.

"Stats for nerds" for the video says DASH is on, "yes (135/140)" and it's enabled in youtube center as well.

As for youtube.com/html5 capture

allbetsareoff29 commented 9 years ago 
                                                                                  ‎When I was messing around, I noticed that the amount it buffers is directly proportional to the video quality/resolution. When selected html5 at 4k results, it buffered 20 seconds and then stopped buffering. At 1440p, the buffer was exactly double - 40 seconds. At 1080p, it buffered 80 seconds...and so on. This makes me believe that the size of the buffer is NOT time based but rather size based. The smaller the resolution, the more time it buffers because at lower resolution, it can buffer "more seconds" to squeeze in the same allotted megabyte limit.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          From: Hampus JensenSent: Friday, April 17, 2015 1:05 PMTo: YePpHa/YouTubeCenterReply To: YePpHa/YouTubeCenterCc: allbetsareoff29Subject: Re: [YouTubeCenter] Dash playback isnt working in html5 (#1552)OK, loaded a video and just let it sit there to see how much it loaded. It didn't actually load the whole video, but it loaded way more than DASH usually does. Out of a 16 minute video it loaded about 7 minutes and 30 seconds and I don't have custom buffer on or anything.

"Stats for nerds" for the video says DASH is on, "yes (135/140)" and it's enabled in youtube center as well.

As for youtube.com/html5

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Leonick commented 9 years ago

Makes sense I guess... Wonder why there's such a big difference between HTML5 and Flash though, because with flash it generally doesn't even buffer a minute ahead on 480p, compare that to over 7 minutes. Suppose that's a youtube issue but then again, youtube center is all about sorting out their issues.

Lucatir commented 9 years ago

Just a hunch, but it could be actually due to limitations in the HTML5 players why the system differs. Don't quote me on that though.

allbetsareoff29 commented 9 years ago 
                                                                                  Html5 videos get handled by browser. Flash videos don't. For all intensive purposes, with flash, browser just creates an empty box and handles off the responsibility to the flash plugin. ‎Flash plugin works on its own to "fill" the box created by browser with images/video                                                                                                                                                                                                                                                                                                                                        Sent from my smartphone. Please excuse any typos                                                                                                                                                                                                                From: Hampus JensenSent: Friday, April 17, 2015 1:27 PMTo: YePpHa/YouTubeCenterReply To: YePpHa/YouTubeCenterCc: allbetsareoff29Subject: Re: [YouTubeCenter] Dash playback isnt working in html5 (#1552)Makes sense I guess... Wonder why there's such a big difference between HTML5 and Flash though, because with flash it generally doesn't even buffer a minute ahead on 480p, compare that to over 7 minutes. Suppose that's a youtube issue but then again, youtube center is all about sorting out their issues.

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allbetsareoff29 commented 9 years ago 
                                                                                  Interesting thought. I'd be interested to see how different browsers handle the differences                                                                                                                                                                                                                From: ErdeFBSent: Friday, April 17, 2015 1:33 PMTo: YePpHa/YouTubeCenterReply To: YePpHa/YouTubeCenterCc: allbetsareoff29Subject: Re: [YouTubeCenter] Dash playback isnt working in html5 (#1552)Just a hunch, but it could be actually due to limitations in the HTML5 players why the system differs. Don't quote me on that though.

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Leonick commented 9 years ago

Just tried in Chrome, it stopped buffering after 2 and a half minute. Firefox only recently had the media source extensions implemented (required fof DASH with HTML5 videos) so maybe it's still missing something. Though you'd figured they'd implement it properly when they did.

allbetsareoff29 commented 9 years ago 
                                                                                  Try same browser and different video resolutions                                                                                                                                                                                                                From: Hampus JensenSent: Friday, April 17, 2015 1:49 PMTo: YePpHa/YouTubeCenterReply To: YePpHa/YouTubeCenterCc: allbetsareoff29Subject: Re: [YouTubeCenter] Dash playback isnt working in html5 (#1552)Just tried in Chrome, it stopped buffering after 2 and a half minute.

Firefox only recently had the media source extensions implemented (required fof DASH with HTML5 videos) so maybe it's still missing something. Though you'd figured they'd implement it properly when they did.

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Leonick commented 9 years ago

At 360p it firefox loaded 10 minutes 44 seconds of the same 16 minute video.

RoboGigas commented 9 years ago

I've experienced an issue with Dash playback that mainly seems to affect music videos (no real video, just audio) where the playback bar appears to buffer up to a minute but the video is unable to start regardless of what you try, seemingly buffering forever. Turning off Dash playback enables the videos to render, but I can't keep changing this option to go between having 60fps or the videos buffering properly.