After stream recording, the video rotates 270 degrees

[sangsoo]

hello.
I am using the stream recording function.
In recent Chrome browser version 100 (100.0.4896.75), if you play the stream after recording it, it is forcibly rotated by 270 degrees.
Chrome Beta 101 version (v101.0.4951.15) and Chrome Canary 102 version (102.0.4990.2) have the same symptoms.

1. test server
https://%mywcs%:8444/client2/examples/demo/streaming/stream_recording/recording.html
-----Version info-----
wcs_version=5.2.1151-79115db19701704f18c4ea27e5a6a80d9561862e
wcs_client_version=2.0.216-05436f8d7f316c9c1e919afcd2a813f4b146ff53

(*) This symptom also occurs on demo.flashphoner.com.

https://demo.flashphoner.com:8888/client2/examples/demo/streaming/stream_recording/recording.html

Please check what the problem is.
thank you.

 

[Max]

Good day.
This is a known Chrome bug https://bugs.chromium.org/p/chromium/issues/detail?id=1313851&q=mp4&can=2. Perhaps Chrome develepers should fix it soon.
There is also the ticket WCS-3465 to check MP4 recording metadata.
Use ffmpeg postprocessing

ffmpeg -i stream.mp4 stream-fixed

with on_record_hook script as temporary workaround.

 

[Max]

Good day.
We fixed rotation and display matrix issue in MP4 recordings in WCS build 5.2.1165, so Chrome versions without bug fix should play a new recordings correctly.
For old recordings, waiting for Chrome fix.

 

[sangsoo]

That is a good news. Max
But the update fails, please check it.

-----Version info-----
wcs_version=5.2.1140-7ce4ffa8483526ce9bd4c94fe80ab0247659e3d5
wcs_client_version=2.0.212-ecbadc3d0850a638ae9eb784708539780a1ffbef

thank you.

 

[Max]

But the update fails, please check it.

Unfortunately, current version data file was occasionally deleted from web server. We fixed this, please try again.

 

[djuka]

Thank you for the update!

 

[Max]

Thank you for the update!

We recommend to update to the latest build 5.2.1181 if you're using VOD, because there was S3 VOD playback regression fixed after 5.2.1165.