Hi guys,
2 super simple questions about DPX metadata -- my apologies if these are
obvious:
(using OIIO 1.1.2 on CentOS 6.2)
1. I notice if I simply read in a DPX with a PixelAspectRatio of 2 and
write it right back out without any ops, the PixelAspectRatio changes to 1
-- dpx:Signal also seems to be added but I'm more concerned about data
being changed than about data being added...
i.e. oiiotool my.dpx -o out.dpx
>> oiiotool -v --info my.dpx
Reading my.dpx
my.dpx : 2048 x 1556, 3 channel, uint10 dpx
channel list: R, G, B
oiio:BitsPerSample: 10
Orientation: 1 (normal)
dpx:Transfer: "User defined"
dpx:Colorimetric: "User defined"
Software: "ARRISCAN055"
DocumentName: "tmi_vfx_scans_012913"
DateTime: "2013-01-30 00:18:57"
PixelAspectRatio: 2
dpx:ImageDescriptor: "RGB"
dpx:DittoKey: 1
dpx:LowQuantity: 0
dpx:HighQuantity: 0
dpx:EndOfLinePadding: 0
dpx:EndOfImagePadding: 0
dpx:XScannedSize: 0
dpx:YScannedSize: 0
dpx:FramePosition: 281
dpx:SequenceLength: 289
dpx:HeldCount: 0
dpx:FrameRate: 0
dpx:ShutterAngle: 0
dpx:Version: "V1.0"
dpx:InputDevice: "325"
dpx:HorizontalSampleRate: 0
dpx:VerticalSampleRate: 0
dpx:TemporalFrameRate: 24
dpx:TimeOffset: 0
dpx:BlackLevel: 0
dpx:BlackGain: 0
dpx:BreakPoint: 0
dpx:WhiteLevel: 0
dpx:IntegrationTimes: 0
dpx:Packing: "Filled, method A"
dpx:TimeCode: "00:00:11:17"
dpx:FilmEdgeCode: "0219630563747880"
>> oiiotool -v --info out.dpx
Reading out.dpx
out.dpx : 2048 x 1556, 3 channel, uint10 dpx
channel list: R, G, B
oiio:BitsPerSample: 10
Orientation: 1 (normal)
dpx:Transfer: "User defined"
dpx:Colorimetric: "User defined"
Software: "OpenImageIO 1.1.2 http://www.openimageio.org";
DocumentName: "tmi_vfx_scans_012913"
DateTime: "2013-01-30 00:18:57"
PixelAspectRatio: 1
dpx:ImageDescriptor: "RGB"
dpx:DittoKey: 1
dpx:LowQuantity: 0
dpx:HighQuantity: 0
dpx:EndOfLinePadding: 0
dpx:EndOfImagePadding: 0
dpx:XScannedSize: 0
dpx:YScannedSize: 0
dpx:FramePosition: 281
dpx:SequenceLength: 289
dpx:HeldCount: 0
dpx:FrameRate: 0
dpx:ShutterAngle: 0
dpx:Version: "V2.0"
dpx:InputDevice: "325"
dpx:HorizontalSampleRate: 0
dpx:VerticalSampleRate: 0
dpx:TemporalFrameRate: 24
dpx:TimeOffset: 0
dpx:BlackLevel: 0
dpx:BlackGain: 0
dpx:BreakPoint: 0
dpx:WhiteLevel: 0
dpx:IntegrationTimes: 0
dpx:Packing: "Filled, method A"
dpx:TimeCode: "00:00:11:17"
dpx:Signal: "Undefined"
2. What is the proper syntax for setting metadata to a DPX file? e.g.
dpx:UserData... I tried a variation on what was in the docs (oiiotool
my.dpx --attrib "dpx:UserData" "HELLO_WORLD -o metatest.dpx) but that
didn't work.
Many thanks for your help,
Jep
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