Re: [FFmpeg-user] Color matching to source a problem for ProRes

2018-08-13 Thread Pete Willis
movflags write_colr -color_trc bt709 -color_primaries bt709 -colorspace bt709 /videos/GMMS0138000_100_03HD_Test.mov > On 18 Jul 2018, at 13:47, Pete Willis wrote: > > We are trying to match the output colour to the source content but although > the output formats matches the s

[FFmpeg-user] Color matching to source a problem for ProRes

2018-07-18 Thread Pete Willis
We are trying to match the output colour to the source content but although the output formats matches the source we cannot get it to match. Screenshot attached of the 3 outputs plus the original (top right) we have tested with media info for each: Using these settings: flags=lanczos,colorma

[FFmpeg-user] Bit Depth of PNG Overlay with Alpha channel

2017-11-25 Thread Pete Willis
We have a transparent PNG file with a drop shadow. The drop shadow when overlayed onto a Mov is rendering very dark. Comparing the same file in an NLE (Premiere Pro) the drop shadow opacity is showing as much lighter. I believe the problem is that the NLE is using 32bit colour depth where as

[FFmpeg-user] Bit Depth of PNG Overlay with Alpha channel

2017-11-23 Thread Pete Willis
We have a transparent PNG file with a drop shadow. The drop shadow when overlayed onto a Mov is rendering very dark. Comparing the same file in an NLE (Premiere Pro) the drop shadow opacity is showing as much lighter. I believe the problem is that the NLE is using 32bit colour depth where as F