Thanks for that. While your device compatibility team can address the testing coverage issue, will they also be able to investigate the root cause? If not, who/where do we need to forward this inquiry to, to help determine what is needed for us to get YouTube working on our new device?
On Friday, July 17, 2015 at 2:32:31 PM UTC-7, Glenn Kasten wrote: > > Thanks for the update. > > By the way, the latest build for N6 is 5.1.1 according to > > https://source.android.com/source/build-numbers.html#source-code-tags-and-builds > so you will probably be offered an update for that. It would be > interesting to know how > well N6 running 5.1.1 works. Also any other Nexus devices if you have > access to them. > > You may have found a weakness in our compatibility testing, > so I will forward your note to the device compatibility team for them to > investigate. > > On Friday, July 17, 2015 at 2:25:14 PM UTC-7, William Chow wrote: >> >> OK, we just got a Nexus 6 and confirmed that it doesn't have this >> problem, i.e. it adapts up/down based on the network speed. This N6 is >> running 5.0.1. >> >> On Thursday, July 16, 2015 at 8:41:54 AM UTC-7, Glenn Kasten wrote: >>> >>> Do you have test results for any Nexus family devices (e.g. 5, 6, 7, 10, >>> etc.)? >>> Those are the reference devices used during release testing, so it will >>> be helpful to know how they behave. >>> Please also include the exact OS version for each Nexus device. >>> >>> On Thursday, July 16, 2015 at 6:54:29 AM UTC-7, William Chow wrote: >>>> >>>> Hi, >>>> >>>> Not sure if this is the right forum but came here first since it is >>>> affecting development of a new device. Please let me know if there is a >>>> better forum for this. >>>> >>>> I'm looking into a problem for an OEM regarding a new device in >>>> development, where YouTube does not adaptively adjust the video quality >>>> based upon the actual network speed. Instead, it always picks a specific >>>> resolution to play based on the network type: >>>> >>>> 1. 3G: 360p >>>> 2. 4G: max device resolution >>>> 3. WiFi: max device resolution >>>> >>>> The problem is that on WiFi or LTE, it does not adjust the quality down >>>> when the network is too slow for the device's max resolution (typically >>>> 720p or higher), and winds up stalling/buffering because it's forcing >>>> 720p. >>>> Conversely, if I have a fast 3G connection, it won't adjust the quality up >>>> above 360p even when the network can deliver 480p or higher. YouTube will >>>> stick to that quality even when I set quality to "Auto". >>>> >>>> I analyzed a variety of other devices and found some devices have this >>>> problem, while most do not: >>>> >>>> - Devices that also have this problem (quality is fixed, selected >>>> based on network type) >>>> - Samsung Tab 4 (SM-T237P) >>>> - Xolo Omega 5 >>>> - Star Up Vision >>>> - Devices that don't have this problem (quality is adaptive, >>>> adjusts based on actual network speed) >>>> - Samsung: S4, S5, S6, Note4 >>>> - LG: G2, G3, G4 >>>> - Panasonic P55 >>>> - Cherry: Flare, Topaz >>>> - Sony: Xperia Z3 >>>> >>>> One other thing we noticed on some devices with this problem is that in >>>> the YouTube "stats for nerds", the "Bandwidth" value is stuck on 0 KiB/s >>>> (mini graph is empty). This was true for the Star and Xolo devices >>>> mentioned above, although the Tab 4 was showing a valid bandwidth value, >>>> so >>>> not sure if this is relevant/related to the issue. >>>> >>>> Is there a system property or other setting that needs to be >>>> set/cleared to allow YouTube to automatically adjust quality based on >>>> actual network speed? >>>> >>>> --Bill >>>> >>> -- -- unsubscribe: android-porting+unsubscr...@googlegroups.com website: http://groups.google.com/group/android-porting --- You received this message because you are subscribed to the Google Groups "android-porting" group. To unsubscribe from this group and stop receiving emails from it, send an email to android-porting+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
