[FFmpeg-trac] #1106(avcodec:closed): 10 bit RGB DPX file identified as rgb48le
FFmpeg
trac at avcodec.org
Tue Mar 20 19:48:49 CET 2012
#1106: 10 bit RGB DPX file identified as rgb48le
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Reporter: dericed | Owner:
Type: enhancement | Status: closed
Priority: wish | Component: avcodec
Version: git-master | Resolution:
Keywords: dpx gbr10 | worksforme
Blocking: | Blocked By:
Analyzed by developer: 0 | Reproduced by developer: 1
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Comment (by dericed):
When I convert the DPX to raw rgb48le then there is random data in bits
11-16 for each channel. Is the conversion of this DPX to raw rgb48le not a
lossless conversion? Where does this extra data come from?
...
OK, looking closer it seems that bits 11-16 are a copy of bits 1-6, so the
10 bit DPX sample decodes to bit:1,2,3,4,5,6,7,8,9,10,1,2,3,4,5,6. Is
there a way to prevent this, as it seems to just add noise in the lesser
significant bits?
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Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/1106#comment:3>
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