[INFO] Chromecast Cast Screen Mirroring Lag Test - Google Chromecast

As promised in another thread, I captured a video of the native full-screen mirroring lag.
Delay is half a second or less, video seems shows closer to quarter of second. Content doesn't seem to matter much - feels like the same delay mirroring streaming TV.
Sorry, the darn rolling shutter makes it pretty much impossible to discern the hundredths of a second, tenths are barely legible...
And please ignore the audio - my wife was wondering what I was doing... as usual. :angel:
Video: https://copy.com/f04CuUFQkoNo
If you want to run your own test, the timer video is from MediaCollege.com and the MP4 version should play natively without needing any conversion.
Casting Device Specs:
AT&T Samsung Galaxy S3 SGH-I747
KitKit 4.4.2 Stock rooted I747UCUFNE4
Google Play Services version 5.0.84 (1259630-036)
Chromecast app version 1.7.4
Playing via MX Player 1.7.28
Screen casting enabled via MirrorEnabler
Connected to 5 GHz WiFi on Netgear WNDR4500 router
WiFi signal strength: Excellent
Chromecast Specs:
Build 17250 (Eureka-ROM 17250.003, but should not matter stock or not)
Connected to 2.4 GHz WiFi on Netgear WNDR4500 router
WiFi signal strength: Excellent

Have you tried to stream a movie or channel like from xbmc? I have a Sprint Galaxy s3 and the same router also. I have used VLC player with my movies. I have a network with 30/3 speeds.
Sent from my SPH-L710 using Tapatalk
---------- Post added at 02:09 AM ---------- Previous post was at 02:07 AM ----------
To add more my problem is while I'm on xbmc playing a channel it will buffer and lose sound then the soundtrack will be off from video like about 5 to 10 seconds.
Sent from my SPH-L710 using Tapatalk

greengiant1969 said:
Have you tried to stream a movie or channel like from xbmc? I have a Sprint Galaxy s3 and the same router also. I have used VLC player with my movies. I have a network with 30/3 speeds.
Click to expand...
Click to collapse
I don't use XBMC but I've played TV episodes from Xfinity TV Go (which doesn't support Chromecast) and haven't noticed any problems.
Since the screen mirroring traffic is also going through WiFi along with your streaming it'll take up more WiFi bandwidth so signal reception on all devices involved becomes more critical.
I tried the same with AllShare Cast (I have an AllShare Wireless Hub connected to another input on the same TV) and while yet lag is similar, I noticed that WiFi Direct seemed to limit general network traffic more. My streaming playback video would break up from time to time. No such problem with Chromecast mirroring.

bhiga said:
I don't use XBMC but I've played TV episodes from Xfinity TV Go (which doesn't support Chromecast) and haven't noticed any problems.
Since the screen mirroring traffic is also going through WiFi along with your streaming it'll take up more WiFi bandwidth so signal reception on all devices involved becomes more critical.
I tried the same with AllShare Cast (I have an AllShare Wireless Hub connected to another input on the same TV) and while yet lag is similar, I noticed that WiFi Direct seemed to limit general network traffic more. My streaming playback video would break up from time to time. No such problem with Chromecast mirroring.
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Click to collapse
my chromecast was eating dust for 1 month because my g2 have so much lag over screencast that it takes 10 sec just to navigate. pictures and videos were like crazy late.
now i bought nexus 7 and man even the videos on my device runs smooth...
whats the issue with g2?? tried both stock, custom, g3 port and aosp.

laptop lag
Having this lag issue using cast entire screen even just on the desktop moving the mouse works fine using an s4 & g3 anyone have a fix yet?

Related

poor resolution on chrome tab

anybody experiencing poor resolution quality while casting your chrome tab? I know my connection is not the problem because I have 54mpbs fiber optics...
Got to your chromecast extensions options and change the tab projection quality
lezombi said:
Got to your chromecast extensions options and change the tab projection quality
Click to expand...
Click to collapse
yes already tried that and still same problem
I have the same problem. Any time I cast a tab I lose lots of video quality. When I cast the entire screen it looks much better but that won't allow audio streaming right now.
Netflix and youtube quality is great but chrome tab must still be in beta
<AOL>Me too</AOL>
Seeing the same thing. Casting the whole screen to my 1080p screen looks great. Casting a tab looks like someone miscoded an antialiasing routine.
Tab casting has nothing to do with your Internet speed, and everything to do with your internal network speed and PC power.
Your PC is rendering the page and streaming to the Chromecast. My HP Ultrabook can barely handle 3 frames per second using wifi, but my desktop does a good job at full 720p video hardwired to the router.

Netflix audio problem

I just got my Chromecast for Christmas and when I use netflix the audio sounds extremely garbled and high pitched. We are talking indistinguishable Alvin and the Chipmunks underwater messed up audio. YouTube and Pandora sound fine. Any ideas or is netflix just messed up?
someguyatx said:
I just got my Chromecast for Christmas and when I use netflix the audio sounds extremely garbled and high pitched. We are talking indistinguishable Alvin and the Chipmunks underwater messed up audio. YouTube and Pandora sound fine. Any ideas or is netflix just messed up?
Click to expand...
Click to collapse
What kind of TV or sound system do you have?
Its currently hooked up to an old Viewsonic LCD TV, no sound system. I don't think the TV is the problem since youtube and pandora work fine unless Netflix has audio output settings I am not aware of.
Sent from my M470BSA using Tapatalk
someguyatx said:
Its currently hooked up to an old Viewsonic LCD TV, no sound system. I don't think the TV is the problem since youtube and pandora work fine unless Netflix has audio output settings I am not aware of.
Click to expand...
Click to collapse
Netflix does have audio options, though I have yet to find anything beyond Stereo.
If the audio is semi-intelligible but playing in super-fast bursts, then it's being caused by lag, similar to how Bluetooth A2DP will try to catch up the signal is interrupted - the remainder of the buffer is flushed at super speed to try to catch up. But if the signal is continually interrupted, this happens continuously.
I don't know what Netflix's default streaming bitrate is, but it's possible your connection isn't stable enough to handle whatever rate it's choosing. YouTube tends to drop down or buffer more. Pandora is just audio which is trivial bandwidth-wise.
I have 15/1 cable thats pretty spot on. No issues streaming netflix and other stuff to Sony bluray or Wii. My router is an older TPLink N300, but it works with everything else. I don't have HBO or Hulu will try to find other video apps to troubleshoot. Either way thanks for your responses.
Sent from my M470BSA using Tapatalk
OK so I downloaded redbull TV and revision 3 and tested videos. Redbull works fine but revision 3 has the sane audio issues as Netflix. Maybe its a router issue? I will just have to do some research I guess
Sent from my XT1060 using Tapatalk
someguyatx said:
OK so I downloaded redbull TV and revision 3 and tested videos. Redbull works fine but revision 3 has the sane audio issues as Netflix. Maybe its a router issue? I will just have to do some research I guess
Click to expand...
Click to collapse
Possibly... Newer TP-Link routers are listed as compatible by Google so, not sure.
How's the signal strength on the Chromecast? If you're not already using the extender, that might be enough.
Otherwise, the general "gotchas" seem to be options related to:
AP Isolation (must be OFF)
Multicast (depends, but multicast packets need to be allowed)
UPnP (should be ON)
IGMP (depends)
IPv6 (depends)
Good signal strength and my settings look right. Will try on the Samsung TV shortly for troubleshooting. Wife is on that one at the moment. I don't need a Chromecast on that TV though if it works right.
Sent from my M470BSA using Tapatalk
Seems to be fine on the other TV which is also much closer to the router. Do these units only work right on full strength?
someguyatx said:
Seems to be fine on the other TV which is also much closer to the router. Do these units only work right on full strength?
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Click to collapse
Not necessarily full strength, but it does need a reasonable connection strength so there is enough sustained transfer speed.
Sounds like your sustained transfer speed may be fluctuating, causing "spurts" which are generally bad for streaming applications. A slower, stable connection is actually better than a faster, bursty connection for streaming, because it's like breathing - it's about flow rather than average. 7.5 liters of air in 3 seconds doesn't make up for the other 57 seconds of the minute that you got nothing.
Depending on your wiring situation, if you can move the router closer to the Chromecast, that should help - or if the router is on a different floor, avoid having it directly above/below the Chromecast. If the TV itself is directly between the router and and Chromecast, the HDMI extender should help, if that doesn't get it clear, you can use a longer HDMI extension cable. I have my main Chromecast on a 10-foot HDMI extension, connected to my sound system, which then has a 6-foot HDMI cable to the TV. No problem so far, and it keeps my Chromecast in a spot where I can keep an eye on it. I'm sure one day it's going to sprout legs and run off. :silly:
Some routers allow you to adjust the signal strength as well.
If none of the above is possible, then the final option would be to get a wireless repeater or range extender - or a router with a stronger signal, but it's tough to judge how a specific router will do in a situation without actually testing it.
Yeah I am probably on the fringe of a really good connection for this little device. The wii works fine but its antennas are probably bigger and its only 480p resolution. I should be able to move the cable modem and router just need to dig out a splitter and find my WiFi dongle for the desktop. I also have a Belkin N750 router I can borrow from work tomorrow. I put in a Netgear Nighthawk in its place on Friday. Wish I had $200 to drop on one of those for home.
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someguyatx said:
Yeah I am probably on the fringe of a really good connection for this little device. The wii works fine but its antennas are probably bigger and its only 480p resolution. I should be able to move the cable modem and router just need to dig out a splitter and find my WiFi dongle for the desktop. I also have a Belkin N750 router I can borrow from work tomorrow. I put in a Netgear Nighthawk in its place on Friday. Wish I had $200 to drop on one of those for home.
Click to expand...
Click to collapse
You should be able to have multiple APs as long as everything's on the same subnet. So you could turn off DHCP on the Belkin and connect its LAN to your TP-Link's LAN and it should act as a simple access point. Then connect Chromecast to the Belkin's wireless.
If you have multiple bands that's a good way to minimize other wireless traffic and maximize available bandwidth.
My phone usually is on my 5GHz wireless while my Chromecast is on the 2.4GHz wireless (because that's all it supports). So when I cast local media from Avia it goes from my phone to my router over 5GHz and to Chromecast over 2.4GHz, which in theory keeps the wireless usage to 1x the content bitrate on each band, rather than 2x the content bitrate on a single band (send from phone to router + send from router to Chromecast).
I have narrowed the problem down to my TV and the way certain apps deliver audio. I tried the Belkin router and still had garbled audio on Netflix but YouTube had no issues. Still only good signal strength though.
Next I moved the cable modem and router to several feet from the Chromecast and still had the same audio issues.
Maybe I can talk the wife into a new TV
Sent from my XT1060 using Tapatalk
someguyatx said:
I have narrowed the problem down to my TV and the way certain apps deliver audio.
...
Maybe I can talk the wife into a new TV
Click to expand...
Click to collapse
Weird. Maybe a decoding or sampling rate problem.
Good luck with your wife! :highfive:
Thanks I have never had issues with other HDMI devices on this TV. I currently have a Pace cable box and have used various cable boxes, DVD, and media players. Here is a quick video of the issue for reference https://www.youtube.com/watch?v=G7LfTa0oQ1w&feature=youtube_gdata_player
Sent from my XT1060 using Tapatalk
Wow that's weird. Almost like a pitch shift... not sure what would cause that... definitely doesn't sound like a network "catch up" though.
Maybe joint stereo being interpreted as standard stereo. Very weird. Submit a bug report to Netflix, doesn't hurt.
Sent from a device with no keyboard. Please forgive typos, they may not be my own.
Sounds like Alvin and the Chipmunks!
Yeah its pretty crazy. I will submit to Netflix later this week.
Sent from my XT1060 using Tapatalk
We found a great deal on a Samsung 55" LED today and after shifting TVs around the house I won't be using the Viesonic anymore. The good news is that the Chromecast is working fine now on the old Samsung 42"
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someguyatx said:
We found a great deal on a Samsung 55" LED today and after shifting TVs around the house I won't be using the Viesonic anymore. The good news is that the Chromecast is working fine now on the old Samsung 42"
Click to expand...
Click to collapse
Congratulations on that!

Chromecast Network Problem - Help!

I'm having a major problem and I can't seem to figure out the issue :\
I've been using Avia + Chromecast without issue for weeks.
However, recently I'm having an issue where all of the sudden the video playback goes to crap and things start playing at a slideshow rate.
Once things go wrong there is no recovering. If I play the movie on a tablet or my phone it works fine. As soon as I try to cast it through Avia though it takes forever to load and then when it finally does play it's a choppy mess. Restarting the Chromecast has no effect. Restarting the device I was using to cast also has no effect. The network is showing full speed ahead (21 down) and everything plays smoothly on any of the Android devices until I try to cast it.
The only thing that fixes the problem is restarting my router. I don't understand how it could be a router problem though because if that were the case wouldn't the speed drop, and why would everything play smoothly on the individual devices themselves?
I have also tried using AllCast to see if it's an Avia problem but the same thing happens. It'll work great, I stream an entire movie in high and then once I move onto the next piece of media/movie all of the sudden it's like the Chromecast gets confused and that's all she wrote until I restart the router :crying:
I have AT&T Uverse and my connection averages 20+ down.
I have the following devices connected to my network and the problem occurs casting from any of the Android devices eventually:
Computer
Samsung Galaxy Note 3 (4.3)
Samsung Galaxy S3 (4.3)
LG G Pad 8.3 (4.2.2)
Google Nexus 7 (2012) (4.4.2)
Motorola Droid X (2.3.4)
Sony Blu-Ray Player
Does anyone have any clue what could be causing the problem?
SeanPlunk said:
I'm having a major problem and I can't seem to figure out the issue :\
I've been using S***box + Avia + Chromecast without issue for weeks.
However, recently I'm having an issue where all of the sudden the video playback goes to crap and things start playing at a slideshow rate.
Once things go wrong there is no recovering. If I play the movie on a tablet or my phone it works fine. As soon as I try to cast it through Avia though it takes forever to load and then when it finally does play it's a choppy mess. Restarting the Chromecast has no effect. Restarting the device I was using to cast also has no effect. The network is showing full speed ahead (21 down) and everything plays smoothly on any of the Android devices until I try to cast it.
The only thing that fixes the problem is restarting my router. I don't understand how it could be a router problem though because if that were the case wouldn't the speed drop, and why would everything play smoothly on the individual devices themselves?
I have also tried using AllCast to see if it's an Avia problem but the same thing happens. It'll work great, I stream an entire movie in high and then once I move onto the next piece of media/movie all of the sudden it's like the Chromecast gets confused and that's all she wrote until I restart the router :crying:
I have AT&T Uverse and my connection averages 20+ down.
I have the following devices connected to my network and the problem occurs casting from any of the Android devices eventually:
Computer
Samsung Galaxy Note 3 (4.3)
Samsung Galaxy S3 (4.3)
LG G Pad 8.3 (4.2.2)
Google Nexus 7 (2012) (4.4.2)
Motorola Droid X (2.3.4)
Sony Blu-Ray Player
Does anyone have any clue what could be causing the problem?
Click to expand...
Click to collapse
We do not discuss s***box, but I'll try to address your general network issue.
Sounds like either there's some cascading failure like packet repetition death or throttling.
If your router has any WiFi optimizations like WMM, try toggling that. Also look for QoS (Quality of Service) functions too.
bhiga said:
We do not discuss s***box, but I'll try to address your general network issue.
Sounds like either there's some cascading failure like packet repetition death or throttling.
If your router has any WiFi optimizations like WMM, try toggling that. Also look for QoS (Quality of Service) functions too.
Click to expand...
Click to collapse
Removed the reference to forbidden app, thanks for the head's up.
I'll check my options to see if any of your suggestions will help. Thanks :good:

Hulu+ - Low quality streaming

Hello everyone!
I just recently got myself a Chromecast to use specifically with Netflix and Hulu Plus (casting from an iOS device).
Thanks to this forum I knew how to proceed for everything beforehand, using Smart DNS in my router, blacklisting google's DNS servers, etc. I have a TP-Link router.
Netflix is working perfectly, bumps to the 720p stream in about 6 seconds and another 5-6 seconds later it streams at 1080p without any noticeable drops so far.
Hulu Plus however is being problematic. It might smart in HD (sometimes) but either a few minutes later or after the commercials it drops to SD quality and rarely ramps up again. Starting the stream again helps, but only for a short while.
As I currently don't have another H+ device to test, i was wondering if the hulu plus implementation with Chromecast is indeed flawed or if this is happening just to myself (I understand that being overseas might not help - although I'm not sure which CDN I'm getting the content from), but it's really annoying seeing all the godawful pixels on my screen constantly - the Ads... pfft, well, those are always in 720p, go figure!
Anyway, hopefully you'll be able to share your experiences with me!
Cheers, thanks.

Cast Screen works very badly.

I purchased the Turbo yesterday, there are many things I like but Cast Screen to my Samsung 2014 Smart TV is horrible, the videos are choppy and not worth watching at all, even something as basic as pictures is also pixelated and slow, my wife has Galaxy Note 3 with native Screen Mirroring feature and so does the TV and it works perfectly. Any suggestions or help to get my new Turbo to play smooth videos and pictures on my TV would be greatly appreciated. Thanks.
Has anybody used the Cast Screen feature at all? Any feedback is greatly appreciated..... continued, I tried WiFi direct; at first it would not even connect to my Samsung 2014 Smart TV, after much frustration I changed the wifi frequency on theTurbo from Auto to 2.4 gigahertz and it connected. My happiness was very short lived, my TV requires for WiFi direct to work that I install a Samsung app. called Smart View 2.0...which cannot be installed on the Turbo; it is not compatible.
I no longer expect that I will receive a reply here that will help me but at least I can be of some help to those sitting on the fence whether to buy a Turbo: If playing your videos from your phone on your TV is VERY important to you: Do Not buy the Turbo, if having a WiFi Hotspot without paying Verizon for double dipping is very important to you: Do Not buy the Turbo. If battery life, performance, reception, storage ( I have the 64 gb model) and overall good feel and looks matters most to you: BUY the Turbo. Good Luck
I can cast NHL Gamecenter to my Samsung TV with no stutter at all. I even have a crappy internet connection. I haven't tried any other videos, but photos are tack sharp. No idea why you might be having issues.
I also can cast Netflix or Slingplayer from the phone to my TV, works ok but it is also silly since my TV has Netflix built-in and Slingplayer plays my own TV channels, the problem I am having is with Screen MIrroring, that is what Samsung calls it, Motorola calls it Cast Screen, when I project my phone unto the TV screen the results are very poor, Videos are choppy and pictures load very, very slowly, when my wife connects her Samsung Note 3 to the TV the results are flawless, no lag, videos on her phone play in full 55" splendor perfectly, with the Turbo it is a terrible experience.
I was hoping someone here could try to play their own phone videos on their big screen HDTV and report back on results or better yet help me to get better results with my Turbo.
I also can cast Netflix or Slingplayer from the phone to my TV, works ok but it is also silly since my TV has Netflix built-in and Slingplayer plays my own TV channels, the problem I am having is with Screen MIrroring, that is what Samsung calls it, Motorola calls it Cast Screen, when I project my phone unto the TV screen the results are very poor, Videos are choppy and pictures load very, very slowly, when my wife connects her Samsung Note 3 to the TV the results are flawless, no lag, videos on her phone play in full 55" splendor perfectly, with the Turbo it is a terrible experience.
I was hoping someone here could try to play their own phone videos on their big screen HDTV and report back on results or better yet help me to get better results with my Turbo.
Click to expand...
Click to collapse
I don't know if my experience is helpful because I have a Sony Xperia Z3v and a LG Smart TV. I have much better success with screen mirroring (Miracast) when I have my phone connected to my 5GHz N channel of my router. If I use 2.4GHz, I get similar results as you or it won't connect at all.
Thanks for the comeback, I have a 2.4 gigahertz router so it is my only option, What I notice is a distinct difference in quality between my wife's Note 3 and my Turbo. It may be that since my TV is Samsung and so is my wife's phone, they are optimized for each other. In other words Motorola and Samsung don't like each other. Thanks again.
UPDATE: For reasons I cannot explain Screen Mirroring or Cast Screen from my Turbo to my HDTV is working perfectly and smoothly, I have the exact same hardware and software that worked terrible for the first 3 days of Turbo ownership, maybe I was not holding my mouth just right... now only one thing keeping me from the Perfect Turbo experience: I still have no WiFi Hotspot so I will have to hope an app. is developed that works without root or paying Verizon for double dipping.
Turbo
smokie11 said:
UPDATE: For reasons I cannot explain Screen Mirroring or Cast Screen from my Turbo to my HDTV is working perfectly and smoothly, I have the exact same hardware and software that worked terrible for the first 3 days of Turbo ownership, maybe I was not holding my mouth just right... now only one thing keeping me from the Perfect Turbo experience: I still have no WiFi Hotspot so I will have to hope an app. is developed that works without root or paying Verizon for double dipping.
Click to expand...
Click to collapse
Has your performance still sucked? I have a Motorola Turbo and Samsung H7150 and my screen mirroring is horrible.
Screen Cast
I'm using Microsoft's Wireless Display Adaptor and I'm unable to stream Netflix. I get audio,but no video. Anybody else having the same problem? Thanks
I have the Motorola Droid Turbo 2 and I have similar issues with casting my screen to two different Sony HDTV's. Videos from my phone drive will play choppy sound while projecting pixelated chunks of video to the TV. Netflix plays sound but completely refuses to show any video. I will try setting my phone wifi frequency to 5GHz and see. My friend can cast his Samsung with no problem. Might be time to just get an HDMI hookup.

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