[FFmpeg-user] Bit Depth of PNG Overlay with Alpha channel
pete at flatgrey.com
Sun Nov 26 18:28:31 EET 2017
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?
Sent from my iPhone
> On 25 Nov 2017, at 11:57, Gyan Doshi <gyandoshi at gmail.com> 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.
> ffmpeg -I TEST-1.mxf -i test-1.png -filter_complex 'premultiply=inplace=1[img];[img]overlay' -c:v libx264 -profile high10 -map '[out]' out2.mp4
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