Hi,
Walker Leite wrote:
Now, i can convert AVC H264 in h264 lossless/mov, and open it in cin.
H264 in mov container can be open in cinelerra. Thats great, but I can
confirm: the lossless preset (in ffmpeg) cant be read normally.
This is sample file http://lumiera.org/sample_archive/h264_lossless.mov
Converted with this comand line: ffmpeg -i in.mpg -vcodec libx264 -vpre
lossless_slow -acodec libmp3lame -ab 256k -threads 3 -r 29.97 -t 10
h264_lossless.mov
Did you make a bitwise comparison of the encoded frames and the original?
I've tried several lossless codecs a while ago and H.264 failed because
it was lossless only in the luminance channel. In the chrominance
channels, there were some differences. Still not 100% sure if I got all
the settings right though.
The best and fastest *really* lossless (i.e. bitexact) codec I found is
the ffv1 codec from ffmpeg, but it's not supported by cinelerra.
Burkhard
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