The VideoLAN Forums

Posted: **16 Aug 2019 15:39**

Hi everyone,
I'am trying to write a python script that plays YUV-files by using the vlc.py. My first script looks like this :

Code: Select all

import vlc

instance = vlc.Instance()
media = None
mediaplayer = vlc.MediaPlayer()

# Put the media in the media player
mediaplayer.set_rate(24)
mediaplayer.video_set_format('I420',1920,1080,2)
media = instance.media_new('D:/hdr/Kimono_1920x1080_24.yuv')
mediaplayer.set_media(media)
mediaplayer.play()

but i get the following error messages :

Code: Select all

rawvid demux error: invalid or no framerate specified.
[IMGUTILS @ 0000005db409efc0] Picture size 0x0 is invalid
[0000024c620b92c0] avcodec demux error: Could not open D:\hdr\Kimono_1920x1080_24.yuv: Invalid argument

Any tips would be very helpful.
Thank you in advance.

best,
Oussama

Posted: **19 Aug 2019 20:51**

As far as I understand, YUV is just a pixel format.

Code: Select all

https://wiki.videolan.org/YUV/

If you don't have a specific codec for your file format, VLC will never know what to do with it. And we see this from the demux error above. I would suggest that you convert your file to a known container like mp4, mkv, avi, etc...

Posted: **26 Aug 2019 11:27**

Hi,

you can try something like this:

Code: Select all

media = instance.media_new("file/rawvid://D:/hdr/Kimono_1920x1080_24.yuv",  ":rawvid-fps=24", ":rawvid-chroma=I420", ":rawvid-width=1920", ":rawvid-height=1080")

mediaplayer.video_set_format doesn't specify the input format but the decoding format, to be able to use video frames within your program.

The VideoLAN Forums

Play YUV-files from a Python script

Play YUV-files from a Python script

Re: Play YUV-files from a Python script

Re: Play YUV-files from a Python script