[FFmpeg-trac] #8203(undetermined:new): EXR with single zdepth channel read error

[FFmpeg]

#8203: EXR with single zdepth channel read error
-------------------------------------+-------------------------------------
             Reporter:  ils_fl       |                     Type:  defect
               Status:  new          |                 Priority:  important
            Component:               |                  Version:  4.2
  undetermined                       |
             Keywords:               |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
 Summary of the bug:
 Using ffmpeg build N-94300-gaf5f770113
 There is an issue reading exr files generated from vray render engine that
 have a single zdepth channel. However an exr files with two zdepth
 channels are read without an issue. Important to note is that this error
 is only caused by vray's zdepth pass, all other passes work fine.

 This was not an issue in the previous build N-82143-gbf14393


 How to reproduce:
 Included are two exr images:
 s02-01_Double_.0000.exr and s02-01_Single_.0000.exr
 One exr image with a single zdepth pass and another with 2 zdepth passes.
 Compressing the single exr will create a read error but compressing the
 double will not. Compressing an exr image without zdepth work as well as
 compressing exr image with other passes other than zdepth also works.
 (s02-01_none_.0000.exr and s02-01_all_others_.0000.exr respectivly)

 {{{
 ffmpeg.exe -v 9 -loglevel 99  -f image2  -gamma 2.2 -framerate 24 -y
 -start_number 0 -i "C:\temp\s02-01\01.Sky\s02-01_double_.0%%03d.exr"
 -vcodec utvideo -pred left -pix_fmt rgb24 -r 24
 "C:\ExportedMOVs\s02-01_sky_d_.avi" 2> "c:\temp\s02-01\log_sky_s.txt"
 ffmpeg.exe -v 9 -loglevel 99  -f image2  -gamma 2.2 -framerate 24 -y
 -start_number 0 -i "C:\temp\s02-01\01.Sky\s02-01_single_.0%%03d.exr"
 -vcodec utvideo -pred left -pix_fmt rgb24 -r 24
 "C:\ExportedMOVs\s02-01_sky_s_.avi" 2> "c:\temp\s02-01\log_sky_d.txt"
 built on ...
 }}}

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Ticket URL: <https://trac.ffmpeg.org/ticket/8203>
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