Roku and AV1 480P Displays 4x3 not 16x9 (NOT AN EMBY ISSUE)

[tedfroop 34]

For anyone ripping to 480P with AV1, your Roku may have an issue.  I tried the same video on PC and on the Android TV app and it displays 16X9 in both but on my  Roku Ultra it displays in a weird 4x3 format.

Again - not an Emby issue - just fair warning.

Video
ID :	1
Format :	AV1
Format/Info :	AOMedia Video 1
Format profile :	Main@L3.0
Codec ID :	av01
Duration :	1 h 43 min
Source duration :	1 h 43 min
Bit rate :	716 kb/s
Width :	720 pixels
Height :	480 pixels
Display aspect ratio :	2.25:1
Frame rate mode :	Variable
Frame rate :	23.976 FPS
Minimum frame rate :	23.974 FPS
Maximum frame rate :	29.970 FPS
Color space :	YUV
Chroma subsampling :	4:2:0
Bit depth :	8 bits
Bits/(Pixel*Frame) :	0.086
Stream size :	531 MiB (78%)
Source stream size :	531 MiB (78%)
Encoded date :	2023-04-21 10:52:31 UTC
Tagged date :	2023-04-21 10:52:31 UTC
Color range :	Limited
Color primaries :	BT.601 NTSC
Transfer characteristics :	BT.709
Matrix coefficients :	BT.601
Menus :	3
Codec configuration box :	av1C

[Luke 42077]

Thanks for sharing.

[tedfroop 34]

3 hours ago, Luke said:

Thanks for sharing.

No problem.  Always nice to find a quick answer if you have an issue.

[tedfroop 34]

Further info....its not a Roku issue but normal function for Sony K85 TV's.....

IF you have Dolby Vision on, 720x480 sources display in a weird 4x4 format.  Designed so you can't have Dolby Vision on while playing DVD's apparently.  (but buying new Blu Rays will work just fine....)  

So I'm up-converting files to 1280x720.....

[Luke 42077]

Thanks for following up.