On 11/26/17, Flatgrey <[email protected]> wrote: > Thanks Gyan > > That improved things slightly. The difference is pretty noticeable though > to the output I can get with Premiere. > > Do you know if you can specify the colour bit depth for the png file?
png supports 8 bit depth or 16 bit depth per pixel component. If you want more than 8 bit depth use maskedmerge filter to overlay with 16 bit depth. And I think you want unpremultiply filter, as currently overlay filter only knows about straight. > > Thanks > > Pete > > Sent from my iPhone > >> On 25 Nov 2017, at 11:57, Gyan Doshi <[email protected]> wrote: >> >> >>> On 11/25/2017 3:20 PM, Pete Willis wrote: >>> We have a transparent PNG file with a drop shadow. The drop shadow when >>> overlayed onto a Mov is rendering very dark. >> >> This is usually related to whether the input color pixels are straight or >> pre-multiplied. >> >> Try >> >> ffmpeg -I TEST-1.mxf -i test-1.png -filter_complex >> '[1]premultiply=inplace=1[img];[0][img]overlay' -c:v libx264 -profile >> high10 -map '[out]' out2.mp4 >> >> >> Regards, >> Gyan >> _______________________________________________ >> ffmpeg-user mailing list >> [email protected] >> http://ffmpeg.org/mailman/listinfo/ffmpeg-user >> >> To unsubscribe, visit link above, or email >> [email protected] with subject "unsubscribe". > > _______________________________________________ > ffmpeg-user mailing list > [email protected] > http://ffmpeg.org/mailman/listinfo/ffmpeg-user > > To unsubscribe, visit link above, or email > [email protected] with subject "unsubscribe". _______________________________________________ ffmpeg-user mailing list [email protected] http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email [email protected] with subject "unsubscribe".
