[FFmpeg-user] DNG images

[Paul B Mahol]

On Sun, Oct 11, 2020 at 07:37:25PM +0200, Michael Koch wrote:
> I tested all 4 DNG images again with the latest FFmpeg version (Gyan's build
> from today).
> I tested with and without zscale filter. All tests failed. When testing with
> IrfanView, all DNG input images seem to be ok.
>

Your issues is that you do not know how to use zscale properly.

DNG decoding is just fine, what is missing is colorspace stuff in swscale,
for proper display.

> 
> Test 1:
> 
> Images from
> https://drive.google.com/drive/folders/1u5m7aVAFPpEsL4YtDVsfSpfcve9PFG4m
> 
> c:\ffmpeg\ffmpeg -i sample_r00000.dng -y out.jpg
> 
> The image is converted without error message, but the result is much too
> dark.
> 
> c:\ffmpeg\ffmpeg -i sample_r00000.dng -vf zscale -y out.jpg
> 
> Error message: "code 3074: no path between colorspaces"
> The full console output is copied below.
> 
> 
> Test 2:
> 
> This is a RAW image from a Canon 6D which was converted to DNG with Adobe
> DNG
> Converter V12.4:  www.astro-electronic.de/IMG_3459.dng
> 
> c:\ffmpeg\ffmpeg -i IMG_3459.dng -y out.jpg
> 
> The image is converted without error message, but the result is much too
> dark.
> 
> c:\ffmpeg\ffmpeg -i IMG_3459.dng -vf zscale -y out.jpg
> 
> Error message: "code 3074: no path between colorspaces"
> The full console output is copied below.
> 
> 
> Test 3:
> 
> This is a RAW image from a Canon 5D-MK4 which was converted to DNG with
> Adobe DNG
> Converter V12.4. The problem is exactly the same as in test 2.
> 
> 
> Test 4:
> 
> This is a DNG image that was directly written by a Pentax K5 camera.
> www.astro-electronic.de/Pentax_K5.DNG
> 
> c:\ffmpeg\ffmpeg -i Pentax_K5.DNG -y out.jpg
> 
> Error message: "Error while decoding stream #0:0: Invalid data found when
> processing input"
> The full console output is copied below.
> 
> c:\ffmpeg\ffmpeg -i Pentax_K5.DNG -vf zscale -y out.jpg
> 
> Same error message as above.
> 
> 
> Michael
> 
> 
> 
> 
> 
> C:\Users\astro\Desktop\dng>c:\ffmpeg\ffmpeg -i sample_r00000.dng -vf zscale
> -y out.jpg
> ffmpeg version 2020-10-11-git-7ea4bcff7b-full_build-www.gyan.dev Copyright
> (c) 2000-2020 the FFmpeg developers
>   built with gcc 10.2.0 (Rev3, Built by MSYS2 project)
>   configuration: --enable-gpl --enable-version3 --enable-static
> --disable-w32threads --disable-autodetect --enable-fontconfig --enable-iconv
> --enable-gnutls --enable-libxml2 --enable-gmp --enable-lzma
> --enable-libsnappy --enable-zlib --enable-libsrt --enable-libssh
> --enable-libzmq --enable-avisynth --enable-libbluray --enable-libcaca
> --enable-sdl2 --enable-libdav1d --enable-libzvbi --enable-librav1e
> --enable-libsvtav1 --enable-libwebp --enable-libx264 --enable-libx265
> --enable-libxvid --enable-libaom --enable-libopenjpeg --enable-libvpx
> --enable-libass --enable-frei0r --enable-libfreetype --enable-libfribidi
> --enable-libvidstab --enable-libvmaf --enable-libzimg --enable-amf
> --enable-cuda-llvm --enable-cuvid --enable-ffnvcodec --enable-nvdec
> --enable-nvenc --enable-d3d11va --enable-dxva2 --enable-libmfx
> --enable-libglslang --enable-vulkan --enable-libcdio --enable-libgme
> --enable-libmodplug --enable-libopenmpt --enable-libopencore-amrwb
> --enable-libmp3lame --enable-libshine --enable-libtheora --enable-libtwolame
> --enable-libvo-amrwbenc --enable-libilbc --enable-libgsm
> --enable-libopencore-amrnb --enable-libopus --enable-libspeex
> --enable-libvorbis --enable-ladspa --enable-libbs2b --enable-libflite
> --enable-libmysofa --enable-librubberband --enable-libsoxr
> --enable-chromaprint
>   libavutil      56. 60.100 / 56. 60.100
>   libavcodec     58.111.100 / 58.111.100
>   libavformat    58. 62.100 / 58. 62.100
>   libavdevice    58. 11.102 / 58. 11.102
>   libavfilter     7. 87.100 /  7. 87.100
>   libswscale      5.  8.100 /  5.  8.100
>   libswresample   3.  8.100 /  3.  8.100
>   libpostproc    55.  8.100 / 55.  8.100
> [tiff @ 00000234bf57f780] Assuming black level pattern values are identical
> [tiff_pipe @ 00000234bf57d700] Stream #0: not enough frames to estimate
> rate; consider increasing probesize
> Input #0, tiff_pipe, from 'sample_r00000.dng':
>   Duration: N/A, bitrate: N/A
>     Stream #0:0: Video: tiff, bayer_rggb16le, 6016x3200, 25 tbr, 25 tbn, 25
> tbc
> Stream mapping:
>   Stream #0:0 -> #0:0 (tiff (native) -> mjpeg (native))
> Press [q] to stop, [?] for help
> [tiff @ 00000234bf5900c0] Assuming black level pattern values are identical
> code 3074: no path between colorspaces
> Error while filtering: Generic error in an external library
> Failed to inject frame into filter network: Generic error in an external
> library
> Error while processing the decoded data for stream #0:0
> Conversion failed!
> 
> 
> 
> 
> 
> C:\Users\astro\Desktop\dng>c:\ffmpeg\ffmpeg -i IMG_3459.dng -vf zscale -y
> out.jpg
> ffmpeg version 2020-10-11-git-7ea4bcff7b-full_build-www.gyan.dev Copyright
> (c) 2000-2020 the FFmpeg developers
>   built with gcc 10.2.0 (Rev3, Built by MSYS2 project)
>   configuration: --enable-gpl --enable-version3 --enable-static
> --disable-w32threads --disable-autodetect --enable-fontconfig --enable-iconv
> --enable-gnutls --enable-libxml2 --enable-gmp --enable-lzma
> --enable-libsnappy --enable-zlib --enable-libsrt --enable-libssh
> --enable-libzmq --enable-avisynth --enable-libbluray --enable-libcaca
> --enable-sdl2 --enable-libdav1d --enable-libzvbi --enable-librav1e
> --enable-libsvtav1 --enable-libwebp --enable-libx264 --enable-libx265
> --enable-libxvid --enable-libaom --enable-libopenjpeg --enable-libvpx
> --enable-libass --enable-frei0r --enable-libfreetype --enable-libfribidi
> --enable-libvidstab --enable-libvmaf --enable-libzimg --enable-amf
> --enable-cuda-llvm --enable-cuvid --enable-ffnvcodec --enable-nvdec
> --enable-nvenc --enable-d3d11va --enable-dxva2 --enable-libmfx
> --enable-libglslang --enable-vulkan --enable-libcdio --enable-libgme
> --enable-libmodplug --enable-libopenmpt --enable-libopencore-amrwb
> --enable-libmp3lame --enable-libshine --enable-libtheora --enable-libtwolame
> --enable-libvo-amrwbenc --enable-libilbc --enable-libgsm
> --enable-libopencore-amrnb --enable-libopus --enable-libspeex
> --enable-libvorbis --enable-ladspa --enable-libbs2b --enable-libflite
> --enable-libmysofa --enable-librubberband --enable-libsoxr
> --enable-chromaprint
>   libavutil      56. 60.100 / 56. 60.100
>   libavcodec     58.111.100 / 58.111.100
>   libavformat    58. 62.100 / 58. 62.100
>   libavdevice    58. 11.102 / 58. 11.102
>   libavfilter     7. 87.100 /  7. 87.100
>   libswscale      5.  8.100 /  5.  8.100
>   libswresample   3.  8.100 /  3.  8.100
>   libpostproc    55.  8.100 / 55.  8.100
> [tiff @ 000002058bcdf700] Assuming black level pattern values are identical
> [tiff @ 000002058bcdf700] Tiled TIFF is not allowed to strip
> [tiff_pipe @ 000002058bcdd700] Stream #0: not enough frames to estimate
> rate; consider increasing probesize
> Input #0, tiff_pipe, from 'IMG_3459.dng':
>   Duration: N/A, bitrate: N/A
>     Stream #0:0: Video: tiff, bayer_rggb16le, 5568x3708, 25 tbr, 25 tbn, 25
> tbc
> Stream mapping:
>   Stream #0:0 -> #0:0 (tiff (native) -> mjpeg (native))
> Press [q] to stop, [?] for help
> [tiff @ 000002058bce3840] Assuming black level pattern values are identical
> [tiff @ 000002058bce3840] Tiled TIFF is not allowed to strip
> code 3074: no path between colorspaces
> Error while filtering: Generic error in an external library
> Failed to inject frame into filter network: Generic error in an external
> library
> Error while processing the decoded data for stream #0:0
> Conversion failed!
> 
> 
> 
> 
> 
> C:\Users\astro\Desktop\dng>c:\ffmpeg\ffmpeg -i Pentax_K5.DNG -y out.jpg
> ffmpeg version 2020-10-11-git-7ea4bcff7b-full_build-www.gyan.dev Copyright
> (c) 2000-2020 the FFmpeg developers
>   built with gcc 10.2.0 (Rev3, Built by MSYS2 project)
>   configuration: --enable-gpl --enable-version3 --enable-static
> --disable-w32threads --disable-autodetect --enable-fontconfig --enable-iconv
> --enable-gnutls --enable-libxml2 --enable-gmp --enable-lzma
> --enable-libsnappy --enable-zlib --enable-libsrt --enable-libssh
> --enable-libzmq --enable-avisynth --enable-libbluray --enable-libcaca
> --enable-sdl2 --enable-libdav1d --enable-libzvbi --enable-librav1e
> --enable-libsvtav1 --enable-libwebp --enable-libx264 --enable-libx265
> --enable-libxvid --enable-libaom --enable-libopenjpeg --enable-libvpx
> --enable-libass --enable-frei0r --enable-libfreetype --enable-libfribidi
> --enable-libvidstab --enable-libvmaf --enable-libzimg --enable-amf
> --enable-cuda-llvm --enable-cuvid --enable-ffnvcodec --enable-nvdec
> --enable-nvenc --enable-d3d11va --enable-dxva2 --enable-libmfx
> --enable-libglslang --enable-vulkan --enable-libcdio --enable-libgme
> --enable-libmodplug --enable-libopenmpt --enable-libopencore-amrwb
> --enable-libmp3lame --enable-libshine --enable-libtheora --enable-libtwolame
> --enable-libvo-amrwbenc --enable-libilbc --enable-libgsm
> --enable-libopencore-amrnb --enable-libopus --enable-libspeex
> --enable-libvorbis --enable-ladspa --enable-libbs2b --enable-libflite
> --enable-libmysofa --enable-librubberband --enable-libsoxr
> --enable-chromaprint
>   libavutil      56. 60.100 / 56. 60.100
>   libavcodec     58.111.100 / 58.111.100
>   libavformat    58. 62.100 / 58. 62.100
>   libavdevice    58. 11.102 / 58. 11.102
>   libavfilter     7. 87.100 /  7. 87.100
>   libswscale      5.  8.100 /  5.  8.100
>   libswresample   3.  8.100 /  3.  8.100
>   libpostproc    55.  8.100 / 55.  8.100
> [tiff @ 0000019996d5f600] non increasing IFD offset
> [tiff @ 0000019996d5f600]  is not implemented. Update your FFmpeg version to
> the newest one from Git. If the problem still occurs, it means that your
> file has a feature which has not been implemented.
> [tiff @ 0000019996d5f600] If you want to help, upload a sample of this file
> to https://streams.videolan.org/upload/ and contact the ffmpeg-devel mailing
> list. (ffmpeg-devel at ffmpeg.org)
> [tiff_pipe @ 0000019996d5d640] Stream #0: not enough frames to estimate
> rate; consider increasing probesize
> [tiff_pipe @ 0000019996d5d640] decoding for stream 0 failed
> [tiff_pipe @ 0000019996d5d640] Could not find codec parameters for stream 0
> (Video: tiff, none): unspecified size
> Consider increasing the value for the 'analyzeduration' (0) and 'probesize'
> (5000000) options
> Input #0, tiff_pipe, from 'Pentax_K5.DNG':
>   Duration: N/A, bitrate: N/A
>     Stream #0:0: Video: tiff, none, 25 tbr, 25 tbn, 25 tbc
> Stream mapping:
>   Stream #0:0 -> #0:0 (tiff (native) -> mjpeg (native))
> Press [q] to stop, [?] for help
> [tiff @ 0000019996d6fe40] non increasing IFD offset
> [tiff @ 0000019996d6fe40]  is not implemented. Update your FFmpeg version to
> the newest one from Git. If the problem still occurs, it means that your
> file has a feature which has not been implemented.
> [tiff @ 0000019996d6fe40] If you want to help, upload a sample of this file
> to https://streams.videolan.org/upload/ and contact the ffmpeg-devel mailing
> list. (ffmpeg-devel at ffmpeg.org)
> Error while decoding stream #0:0: Invalid data found when processing input
> Cannot determine format of input stream 0:0 after EOF
> Error marking filters as finisheda

As message simple says, if you want to help upload that image that fails to
decode somewhere and post link to upload here.

> Conversion failed!
> 
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