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View Full Version : IMF master file support (avisynth)


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Emulgator
1st November 2022, 12:47
Ah, good find, thanks FranceBB !

excellentswordfight
8th November 2022, 09:26
I also included the steps to reproduce as the following:

1) Download the standard IMF evaluation package from here: Link (https://aswf-dpel-assets.s3.amazonaws.com/asc-stem2/IMF/StEM2_TST_SDR_Rec709_IMF_App2e_Lossy.zip)

2) Create the final mxf file by reading the CPL with FFMpeg like ffmpeg.exe -f imf -i "CPL.xml" -c:v copy -c:a copy -f mxf -y "IMF.mxf"

3) Check the resulting file: it was supposed to be rgb48le 10bit BT709, however the muxed file has all the above mentioned things wrong; wrong bit depth inside the container and CDCI wrongly populated instead of RGBA, causing it to be interpreted as YUV 4:4:4 16bit by other softwares other than ffmpeg and ffprobe themselves.
Ah, you are correct, while I was working on the files I pulled out a 10s sample with ffmpeg, I was apparently checking mediainfo on that file and not the source file. The original mxf containing the video track does indeed look correct in mediainfo.