我发现了一些视频，使用QUEST2自带的播放器能流畅播放，但是SKYBOX播放非常卡。不知道是不是解码器的原因。下面是3部不能流畅播放的视频的一些信息：

`General
Complete name : F:\quest\bad1.mp4
Format : MPEG-4
Format profile : Base Media
Codec ID : isom (isom/iso2/mp41)
File size : 9.70 GiB
Duration : 34 min 23 s
Overall bit rate : 40.4 Mb/s
Tagged date : UTC 2021-11-22 04:26:04
Writing application : Voukoder (Adobe Premiere)
TIM : 00:00:00:00
TSC : 60000
TSZ : 1001

Video
ID : 1
Format : HEVC
Format/Info : High Efficiency Video Coding
Format profile : Main 10@L6.1@Main
Codec ID : hev1
Codec ID/Info : High Efficiency Video Coding
Duration : 34 min 23 s
Bit rate : 40.0 Mb/s
Width : 7 260 pixels
Height : 3 630 pixels
Display aspect ratio : 2.000
Frame rate mode : Constant
Frame rate : 59.940 (60000/1001) FPS
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 10 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.025
Stream size : 9.60 GiB (99%)
Codec configuration box : hvcC

Audio
ID : 2
Format : AAC LC
Format/Info : Advanced Audio Codec Low Complexity
Codec ID : mp4a-40-2
Duration : 34 min 23 s
Bit rate mode : Constant
Bit rate : 384 kb/s
Channel(s) : 2 channels
Channel layout : L R
Sampling rate : 48.0 kHz
Frame rate : 46.875 FPS (1024 SPF)
Compression mode : Lossy
Stream size : 95.0 MiB (1%)
Default : Yes
Alternate group : 1
General
Complete name : F:\quest\bad2.mp4
Format : MPEG-4
Format profile : Base Media / Version 2
Codec ID : mp42 (mp42/mp41)
File size : 11.7 GiB
Duration : 41 min 21 s
Overall bit rate mode : Variable
Overall bit rate : 40.3 Mb/s
Encoded date : UTC 2021-03-31 09:30:38
Tagged date : UTC 2021-03-31 09:32:58
TIM : 00;00;00;00
TSC : 60000
TSZ : 1001

Video
ID : 1
Format : HEVC
Format/Info : High Efficiency Video Coding
Format profile : Main 10@L6.1@Main
Codec ID : hvc1
Codec ID/Info : High Efficiency Video Coding
Duration : 41 min 21 s
Bit rate : 40.0 Mb/s
Width : 7 168 pixels
Height : 3 584 pixels
Display aspect ratio : 2.000
Frame rate mode : Constant
Frame rate : 59.940 (60000/1001) FPS
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 10 bits
Bits/(Pixel*Frame) : 0.026
Stream size : 11.6 GiB (99%)
Language : English
Encoded date : UTC 2021-03-31 09:30:38
Tagged date : UTC 2021-03-31 09:30:38
Color range : Limited
Color primaries : BT.709
Transfer characteristics : BT.709
Matrix coefficients : BT.709
Codec configuration box : hvcC

Audio
ID : 2
Format : AAC LC
Format/Info : Advanced Audio Codec Low Complexity
Codec ID : mp4a-40-2
Duration : 41 min 21 s
Source duration : 41 min 21 s
Bit rate mode : Variable
Bit rate : 317 kb/s
Maximum bit rate : 415 kb/s
Channel(s) : 2 channels
Channel layout : L R
Sampling rate : 48.0 kHz
Frame rate : 46.875 FPS (1024 SPF)
Compression mode : Lossy
Stream size : 93.9 MiB (1%)
Source stream size : 93.9 MiB (1%)
Language : English
Encoded date : UTC 2021-03-31 09:30:38
Tagged date : UTC 2021-03-31 09:30:38General
Complete name : F:\quest\bad3.mp4
Format : MPEG-4
Format profile : Base Media
Codec ID : isom (isom/iso2/mp41)
File size : 12.5 GiB
Duration : 44 min 17 s
Overall bit rate : 40.3 Mb/s
Writing application : Lavf58.63.100

Video
ID : 1
Format : HEVC
Format/Info : High Efficiency Video Coding
Format profile : Main 10@L6.1@Main
Codec ID : hvc1
Codec ID/Info : High Efficiency Video Coding
Duration : 44 min 17 s
Bit rate : 40.0 Mb/s
Width : 7 168 pixels
Height : 3 584 pixels
Display aspect ratio : 2.000
Frame rate mode : Constant
Frame rate : 59.940 (60000/1001) FPS
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 10 bits
Bits/(Pixel*Frame) : 0.026
Stream size : 12.4 GiB (99%)
Language : English
Color range : Limited
Color primaries : BT.709
Transfer characteristics : BT.709
Matrix coefficients : BT.709
Codec configuration box : hvcC

Audio
ID : 2
Format : AAC LC
Format/Info : Advanced Audio Codec Low Complexity
Codec ID : mp4a-40-2
Duration : 44 min 17 s
Bit rate mode : Constant
Bit rate : 317 kb/s
Channel(s) : 2 channels
Channel layout : L R
Sampling rate : 48.0 kHz
Frame rate : 46.875 FPS (1024 SPF)
Compression mode : Lossy
Stream size : 101 MiB (1%)
Language : English
Default : Yes
Alternate group : 1

`

Lucy
你好！
我在等待你的回复期间已经发现1.0.5版本能够流畅播放。你需要视频的话我可以给你种子。

yesli
您好，

感谢您的反馈！

请问您之前使用的是哪个版本？如果该视频在 1.0.5 版本能流畅播放，但在 1.1.0 beta 版本播放卡顿，请将视频种子分享给我们（contact@skybox.xyz），以便我们进行测试。

祝好，
Lucy

Lucy
之前是1.1.0 beta 版本

Lucy
我就是通过SMB播放的。

I have the same issue with 1.1.0. Playback stutters when play some videos of high bitrate on smb. As a comparison, the same file plays properly with 1.0.5

sunnydavid
Hi there, our developers are trying to fix the stuttering issue and improve playback quality. I'll keep you noticed when the next update releases.

sunnydavid yesli
Hi friends,

We just updated Quest beta to 1.1.0 (520). This beta version fixed stutters when streaming from SMB server and added support for 200-degree field of view.

Please kindly try to use the latest beta version 1.1.0 (520) and see if the stuttering issue get improved or fixed.

You can go to Global Settings and turn on "Show FPS" to check the version number.

Don't hesitate to tell us what you think about beta 1.1.0(520). Your feedback is always welcomed!

Kind regards,
Lucy

Lucy

有可能是以下视频参数的问题，我遇到几个无法正常播放的视频都有如下参数，应该是用Voukoder进行渲染并写入了时间码，导致播放问题。我试过将视频文件拷贝到quest中播放，和在smb服务器中播放同样有问题。
Writing application : Voukoder (Adobe Premiere)
TIM : 00:00:00:00
TSC : 60000
TSZ : 1001

cy9544885
您好，请您点击“全局设置”，打开“显示帧率”查看版本号。最新版本为 1.1.0(543) 。另外，您提到的“无法正常播放”是指黑屏还是卡顿？