[Developer Post] - Stuttering + Buffering + Lagging Help Thread!



  • Seems the cpu gets heavilly strained. Over 50% usage on average then it's gradually drpped from 60~ to 40 picture



  • @Lommelun Thanks for all this info - this is awesome!
    Could you send a little info on the file you're trying to play? When you transmit on the 5Ghz band do things improve? (It does make sense that this could help)



  • only until a few days ago have i been having such a huge problem with this lag. every 10-15 sec it buffers. i have a netgear n600 db router, and im the only one on it (i use the 5g). the files i am playing are only about 240mb mp4 videos. i have tried rebooting, closing all other programs and quality adjustment, to no success. i have been resorting to ctrl+o in chrome with better playback. Could this have something to do with the recent videostream update?



  • @tron4 Is your CPU usage high when this happens? We could be transcoding when we're not supposed to...



  • Link to recently tried and buffering/stuttering video info paste
    Link to previoulsy tried, also buffering/stuttering every 10-15 seconds ~

    This may have to do with them being 10bit. Probably. Just read the info myself and they both are 10bit so that might be why cpu usage is very high. I'll test with a 8bit file tomorrow, as it's a little late now.

    Another note; Same issue happened when using my desktop computer (over wifi as well).



  • @Jason-from-Videostream iv been having problems with stuttering happens every 6-8 seconds. the file is under the 6gb (5.38) iv tried lowering the quality and no one is using the internet other wise. it is an mp4 file. and my laptop has no issues play video and iv got a good signal from my router/modem. so any ideas?



  • @zeshi amen zeshi



  • Update on 10bit vs 8bit test
    Looked around a little and compared various 10bit and 8bit video files and indeed, it seems to be the cause. Very high strain on the computer transcoding it - it works, just not well and it will require a lot of buffering. I do not know exactly how the transcoding work, but for me pausing a little and let it cache/buffer (?*) made it bearable with only slight buffering sometimes.

    So guys, if the issue is buffering when watching anime then check if it is 10bit and get an 8bit version instead to do without transcoding (this is; if the new file is compatible with the chromecast and doesn't need to be transcoded).

    10bit in anime info link

    no I'm not a dev I just want it to work flawlessly :)



  • @phan30 said:

    hi there, i have a new laptop and a new router and still have these problems when ever i play avi/video clip files, the one i am watching tonight is only 1gb and played fine for 32 mins, then started to stutter as if it was buffering, please supply a fix for this

    Your totally right this is 100% the 10bit depth that's causing the issue. The Chromecast can't natively play 10bit so we are forced to transcode those 100% of the time.

    There's also significantly more data transfer required on transcoded videos (since we have to dial back the compression) so once we have to transcode something it'll be much harder on your network.

    Unfortunately without building a native app there isn't much we can do about this, I'd say your best bet is trying to get 8bit files when you can. Really sorry about this



  • @tron4 said:

    only until a few days ago have i been having such a huge problem with this lag. every 10-15 sec it buffers. i have a netgear n600 db router, and im the only one on it (i use the 5g). the files i am playing are only about 240mb mp4 videos. i have tried rebooting, closing all other programs and quality adjustment, to no success. i have been resorting to ctrl+o in chrome with better playback. Could this have something to do with the recent videostream update?

    How long is the video your watching? If it's very short and 235MB I could see there being issues.

    If it's not short, could you email me the name of the file so that I can take a look at it? That router is more then good enough so i'm having trouble imagining what the issue is



  • @zeshi I'm really sorry about this - what model of router do you have? Also if you could send me some info on the file: (name/where to get it) at jason@getvideostream.com that would be super helpful



  • @Jason-from-Videostream the 200mb are some anime shows, only about 24 min each



  • @tron4 I had a problem with anime buffering. Figured out it was due to it being encoded with a bit depth of 10 (instead of the 'normal' 8bit in other shows).

    Unfortunately the Chromecast doesn't support playing h264 with a bit depth of 10, so what I did was convert the videos from 10 to 8 bit.

    To do this I just used a free tool called HandBrake. I had some problems with video needing transcoding (which causes buffering, and also a lot of strain on your computer), even after converting it to 8bit - but after a few trials and errors I found out which settings to use. I'll post some screenshots on how to set it up to do a rather simple 10>8 conversion with little quality loss.

    Note; any re-encode or transcoding will reduce quality - similar to encoding lossy music over and over.

    Now, here are my settings in handbrake that did the trick for me.

    Preferences
    Under "tools" open options, here you can make ajustments as you like but noteworthy options are under "Output Files" > Default Path - I set this to a folder on my desktop named Videostream for simplicity. Also check automatically name output files.
    Also remember to tick this to automatically pull the subtitles into the new file. The rest of the preferences are optional.

    Output settings
    These are in the main editor, I would highly recommend you import a file (click source > file/folder then import a video) then set up the output settings and save as a preset. (bottom right; click add).

    Picture - default settings work fine.

    Filter - default settings work fine.

    Video - the most important ones are H.264 profile settings, apart from the speed preset (set at medium for me)
    The h.264 preset slider basically means how fast it will encode versus compression. (faster = bigger file size, slower = smaller file size) for anime medium works fine, I end up with files averaging 3-400mb which play very nice and look super fine on my tv (this size also depends on your Constant Quality sider. 20 is the default but for HD videos you can put it at 24 to get a smaller file size (at the slight loss of quality).

    Audio - AAC ffmpeg 128kbs works fine for me.

    Subtitles - they should import automatically (due to the checkbox in the preferences) if not click add and pick "english" (or what other language you want). (Note; sometimes it says "unknown" or otherwise, and (SSA/ASS) in parentheses - those are usually the ones you want.)

    Leave Chapters and Advanced as is if you don't know what you're doing.

    Now; click add to queue (if you have 1 file) or click the arrow next to it and add the whole batch if you have multiple. Followed by clicking start to start encoding. For me each file takes about 15minutes in the cooker like this and work with zero effort on the computer playing it on the chromecast and no buffering at all.

    Hope this works, good luck and enjoy!



  • thanks for looking out lommelun. il try this.



  • :/ big frowny face. my movies still stutter, its not worth the time to convert all my files for lesser quality.



  • @tron4 That's weird, it worked for me at least with those settings. Pre conversion my computer had to transcode it, which caused it to use a lot of processing power (cpu was running at 40-70% constantly) and thus it buffered. After conversion it did not need to transcode and it ran at a steady ~1-2% cpu usage and no buffering.

    :/ Sucks that it didn't work for you :( Did you remember to set the correct h264 level? Chromecast only supports h264 high 4.1 and 5 I believe - it's on the chromecast supported formats website.



  • Just wanted to add my notes to this mix. Ever since the large update (the one that made everything really pretty) I've had trouble with nearly every video I've played. Never had a single flaw before.
    Most are .mp4, I mean really, they are all YIFY downloads that I've never had a hitch playing before the update. File sizes under 1GB.
    Most of those files are stuttering/stopping until I pause then hit play, or come to the computer and change the quality to "original"

    I've also played a .mkv that was 2.9GB. I used the subtitles on that movie. It stopped about four or so times throughout. Not stutter but stopped (after about 15mins on one stop it did resume by itself). Weird thing on that was when I had to go to the computer to change the quality to Original, or it restarted on its own that once, the selected language changed as soon as it restarted. Found that odd/annoying.

    I've never had a problem with my internet (30/15 Mbps) or Netgear R6100. I'm not streaming or multitasking. I have a year subscription because this app is awesome and was perfect for marathoning seasons of tv shows and being able to control it from my phone. Now it's kinda pointless since i have to get up everytime it stops and mess with the quality setting.

    (Also, did the volume control on the phone app get removed? Or am i just totally missing it?)



  • @6703964 said:

    Weird thing on that was when I had to go to the computer to change the quality to Original, or it restarted on its own that once, the selected language changed as soon as it restarted. Found that odd/annoying.

    This is all really weird stuff (like really really weird), not that i'm trying to dismiss this issue in anyway - but it is just weird. I've played a bunch of YIFY since the update and haven't had issues.

    If you're up for it - i'd love to do a screenshare session with you and get to the bottom of this. Could you shoot me an email at jason@getvideostream.com

    I'll work around whatever schedule you want

    Again super sorry for this guys.....



  • Just a heads up, I have a media server that I currently use for my PS3 streaming as well as some online content streaming, and my fiance chromecast. 1080p video using videostream maxed out my dual core AMD APU cpu that normally is pretty beefy and can easily handle 1080p when I was using it as a xbmc box playing HDTV. I assume that videostream does on the fly encoding. Check cpu usage during the studdering as well and see if your cpu is maxed out. I've had certain videos that would studder even at less than 720p so I adjusted the Chrome process in windows task manager and set it to high. Like I said in another post, this is just a temp work around until the kinks are ironed out by the Videostream team.



  • @6703964 said:

    Just wanted to add my notes to this mix. Ever since the large update (the one that made everything really pretty) I've had trouble with nearly every video I've played. Never had a single flaw before.
    Most are .mp4, I mean really, they are all YIFY downloads that I've never had a hitch playing before the update. File sizes under 1GB.
    Most of those files are stuttering/stopping until I pause then hit play, or come to the computer and change the quality to "original"

    I've also played a .mkv that was 2.9GB. I used the subtitles on that movie. It stopped about four or so times throughout. Not stutter but stopped (after about 15mins on one stop it did resume by itself). Weird thing on that was when I had to go to the computer to change the quality to Original, or it restarted on its own that once, the selected language changed as soon as it restarted. Found that odd/annoying.

    I've never had a problem with my internet (30/15 Mbps) or Netgear R6100. I'm not streaming or multitasking. I have a year subscription because this app is awesome and was perfect for marathoning seasons of tv shows and being able to control it from my phone. Now it's kinda pointless since i have to get up everytime it stops and mess with the quality setting.

    (Also, did the volume control on the phone app get removed? Or am i just totally missing it?)

    Sounds exactly like me. Ever since the update, I've been having issues. Playing mp4's and mkv's. I'm the only one on the Internet. More to the point, I'm playing videos that played perfectly fine a couple weeks back that now stutter constantly. Changing the quality does nothing. Most files are below 2GB. I've rebooted my router, Chromecast, Chrome... uninstalled Videostream and Chrome, then reinstalled. Nothing works. Done speed tests to assure my Internet is working properly. It happens only with Videostream, no other applications.


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