[FFmpeg-user] How to check if a youtube URL is valid before starting download?

[Carl Zwanzig]

On 7/7/2021 8:48 AM, Bo Berglund wrote:
> But now I saw a different error I also want to check for, this is when the
> stream semingly works fine but the video has frozen.

Does that mean youtube continues to send duplicate frames (which are 
received w/o error) or that no frames are received at all? The latter could 
be noticed by watching the process network i/o (no received packets = no 
received stream).

z!