[Schrodinger-devel] VC-2 compression on 3840x2160 10 bits 4:2:2 content

[Alexandre W. <ale...@uc...>]

Hi everyone,

As part of an academic research project I make a benchmark of several 
lightweight video compression schemes using UHD (3840x2160) 4:2:2 10 
bits video content (in the form of v210 frames).
In this context I would like to perform encoding and decoding of such 
content using the schroedinger implementation of VC-2. As 
libschroedinger does not provide a command-line interface, I have to use 
a media framework such as FFMPEG with libschroedinger enabled.

To make it work, I tried many command lines, for example :

ffmpeg -s 3840x2160 -vcodec v210 -pix_fmt yuv422p10le -r 60 -f image2 -i 
v210frames_00%02d.v210 -vcodec libschroedinger -s 3840x2160 -r 60 test.mp4

But my tests only gave me bad results (in this case I get a small mp4 
file that I can open with VLC player but that is visually corrupted).

Can someone give me a hint on the steps I should follow to make it work ?
Can it work with FFMPEG or is FFMPEG not compliant anymore ?
Should I consider to develop a small command-line interface to interface 
with the libschroedinger (is it difficult to make ?)?

Thank you for your help
Best regards,

Alexandre Willème

Research assistant,
Université Catholique de Louvain
Belgium