Hi there. I want to dump 8-bit RGB PNGs from mplayer using the -vo png option, however, it seems that mplayer changes the bit depth and even the number of channels based on what it observes in the source frames. For example, a pure black frame is encoded as 1 bit per pixel, 1 channel instead of 8 bits, 3 channels. Grey images are 8 bits and single channel. Only color frames are encoded as 8-bit, 3-channel images. Is there a way to disable this automatic behavior? Also, is there a way to have mplayer output compressed (but still lossless) PNGs? Thanks, - chris
