ನಾಗೇಶ್ ಸುಬ್ರಹ್ಮಣ್ಯ (Nagesh S <nageshblore <at> gmail.com> writes: > [png <at> 0x3389c00] unsupported bit depth 16 and color type 4 FFmpeg does not support 16 bit gray colourspace with transparency information (AV_PIX_FMT_GRAY16A), this is ticket #644. Carl Eugen