[Ffmpeg-devel] lowres
Roine Gustafsson
roine
Sat May 21 15:32:53 CEST 2005
"-lowres 1" seems broken in ffmpeg. It either produces a
full-resolution frame with a incorrect lowres image in it, or breaks
with segmentation fault in draw_edges_c. It doesn't seem to take in
account that the resulting image will be smaller.
lowres does work in libavcodec - my own code works and mplayer works.
Which codecs support lowres decode? Is h.264 supposed to work?
Shouldn't there be some attribute you can query if a codec supports
lowres or not?
Also, I get quite alot of artifacts with lowres on high motion parts
that touches edges (both in mplayer and in my code). Is this a known
limitation of lowres or a bug?
Is CODEC_FLAG_EMU_EDGE a requirement for lowres? When is that flag
required?
/Roine
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