Hello Kevin, thanks for the hint. I replaced the -colormatrix option with the -vf scale=.. option you suggested but i'm still getting a slight hue shift in the final converted movie.
Even the added -sws_flags you suggested thx @Andy couldn't solve the problem. I tried various combinations but somehow i can't get a color correct output with ffmpeg so far. ffmpeg.exe -loglevel verbose -y -f image2 -start_number 0 -r 25 -i INPUT -r 25 -vcodec prores_ks -profile:v 3 -pix_fmt yuv422p10le -vf scale=in_range=full:in_color_matrix=bt709:out_range=tv:out_color_matrix=bt709 -sws_flags accurate_rnd+full_chroma_int+full_chroma_inp+bitexact -color_primaries bt709 -color_trc bt709 -colorspace bt709 -vendor ap10 OUTPUT.mov ######## The log looks currently like this: Input #0, image2, from 'INPUT': Duration: 00:01:04.48, start: 0.000000, bitrate: N/A Stream #0:0: Video: dpx, 1 reference frame, gbrp10le, 1920x1080 [SAR 1:1 DAR 16:9], 25 tbr, 25 tbn, 25 tbc [Parsed_scale_0 @ 00000000025899a0] w:iw h:ih flags:'bicubic' interl:0 [graph 0 input from stream 0:0 @ 0000000002587ba0] w:1920 h:1080 pixfmt:gbrp10le tb:1/25 fr:25/1 sar:1/1 sws_param:flags=2 [graph 0 input from stream 0:0 @ 0000000002587ba0] TB:0.040000 FRAME_RATE:25.000000 SAMPLE_RATE:nan [Parsed_scale_0 @ 00000000025899a0] w:1920 h:1080 fmt:gbrp10le sar:1/1 -> w:1920 h:1080 fmt:yuv422p10le sar:1/1 flags:0x4 Output #0, mov, to 'OUTPUT.mov': Metadata: encoder : Lavf57.51.103 Stream #0:0: Video: prores (prores_ks), 1 reference frame (apch / 0x68637061), yuv422p10le(bt709), 1920x1080 [SAR 1:1 DAR 16:9], q=2-31, 200 kb/s, 25 fps, 12800 tbn, 25 tbc Metadata: encoder : Lavc57.61.102 prores_ks Stream mapping: Stream #0:0 -> #0:0 (dpx (native) -> prores (prores_ks)) Press [q] to stop, [?] for help No more output streams to write to, finishing.e=00:01:04.28 bitrate=115202.2kbits/s speed=0.42x frame= 1612 fps= 11 q=-0.0 Lsize= 904052kB time=00:01:04.44 bitrate=114928.4kbits/s speed=0.42x video:904040kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.001372% Input file #0 (INPUT.dpx): Input stream #0:0 (video): 1612 packets read (13390381056 bytes); 1612 frames decoded; Total: 1612 packets (13390381056 bytes) demuxed Output file #0 (OUTPUT.mov): Output stream #0:0 (video): 1612 frames encoded; 1612 packets muxed (925736976 bytes); Total: 1612 packets (925736976 bytes) muxed ######## I checked my input footage with ffprobe and mediainfo and the output is as follows: --> ffprobe Input #0, dpx_pipe, from 'INPUT': Duration: N/A, bitrate: N/A Stream #0:0: Video: dpx, gbrp10le, 1920x1080 [SAR 1:1 DAR 16:9], 25 tbr, 25 tbn, 25 tbc --> mediainfo Format : DPX Format version : Version 1.0 File size : 12.5 GiB Duration : 1 min 4 s Overall bit rate : 1 661 Mb/s Encoded date : 2016-10-05T10:36:57Mit Writing library : daVinci Video Format : DPX Format version : Version 1.0 Duration : 1 min 4 s Bit rate : 1 661 Mb/s Width : 1 920 pixels Height : 1 080 pixels Display aspect ratio : 16:9 Frame rate : 25.000 FPS Color space : RGB Bit depth : 10 bits Scan type : Progressive Compression mode : Lossless Bits/(Pixel*Frame) : 32.047 Stream size : 12.5 GiB (100%) Writing library : daVinci Encoded date : 2016-10-05T10:36:57Mit Color primaries : Printing density ######## The output file has the following info: -->ffprobe Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'OUTPUT.mov': Metadata: major_brand : qt minor_version : 512 compatible_brands: qt encoder : Lavf57.51.103 Duration: 00:01:04.48, start: 0.000000, bitrate: 114857 kb/s Stream #0:0(eng): Video: prores (apch / 0x68637061), yuv422p10le, 1920x1080, 114855 kb/s, SAR 1:1 DAR 16:9, 25 fps, 25 tbr, 12800 tbn, 12800 tbc (default) Metadata: handler_name : DataHandler encoder : Lavc57.61.102 prores_ks 2016-10-13 15:05 GMT+02:00 Andy Furniss <adf.li...@gmail.com>: > Kevin Wheatley wrote: > >> Andreas, >> >> instead of using the -colormatrix option try instead using >> >> -vf scale=in_range=full:in_color_matrix=bt709:out_range=tv:out_c >> olor_matrix=bt709 >> >> assuming your DPX files are utilising full range encoding >> > > also scale has flags which may or may not affect quality in this case. > > IIRC getting them to work can be a bit variable, historically > > -sws-flags flag1+flag2 ... used to work, but not last time I tested so > > -vf scale=........:flags=flag1+flag2..... was what I last used - best > > to double check with -loglevel verbose + check output to be sure. > > https://www.ffmpeg.org/ffmpeg-scaler.html#scaler_005foptions > > I am thinking of trying accurate_rnd full_chroma_int full_chroma_inp > bitexact > > not that I know what's best or relevant, so trial and error really. > > _______________________________________________ > ffmpeg-user mailing list > ffmpeg-user@ffmpeg.org > http://ffmpeg.org/mailman/listinfo/ffmpeg-user > > To unsubscribe, visit link above, or email > ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe". > _______________________________________________ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".