[Ffmpeg-devel] watermark vhook and -vcodec copy
Wed Jun 29 13:12:23 CEST 2005
>>No, this is complete and utter nonsense. Copying video frames and
>>modifying them are mutually exclusive.
>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.
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.
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