[FFmpeg-devel] About Unchanged Frames
Sat May 10 08:42:01 CEST 2008
The type of material I am trying to encode with ZMBV has a lot of
unchanged frames. It seems that the best ZMBV can do with unchanged
frames is 11-12 bytes. I seem to recall that it's possible to stuff an
AVI file with an empty frame (i.e., a '00dc' chunk with a 0-length
payload) that the demuxer will interpret as an empty frame (I have some
H.264 AVI files that do this). How can an encoder communicate to FFmpeg
that the AVI muxer should mux a 0-length frame? When I try to return 0
from the encode_frame() function, FFmpeg construes that as a skipped
frame and doesn't mux it.
What's a good solution to deal with these unchanged frames? Thanks.
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