[Ffmpeg-devel] watermark vhook and -vcodec copy

[Marcus Engene]

Chris wrote:

>>
>>No, this is complete and utter nonsense. Copying video frames and
>>modifying them are mutually exclusive.
>>
>>Rich
>>
>>    
>>
>
>
>Nonsense maybe... I am aware they are mutually exclusive. What I was
>implying is that copying video frames takes place but for a set
>duration/number of frames, vhook is invoked. I.e. encoding.
>
>I think a combination of -ss an -t will get me where I need to be.
>
>Chris 
>  
>
Hi Chris,

If you are not concerned with cpu consumption there is another way.

The watermark image decoding follows Martin B?hmes excellent guide and 
should (as in: is not thoroughly tested) be able to use a video stream 
for watermark instead of a static image. You could try to generate a 
video stream with the watermark and after X seconds you tone the whole 
frame to gray (#808080) and it won't affect the output anymore.

Best regards,
Marcus