FailedToExecuteCommand Exception on new MagickImageInfo("movie.AVI")

[ChuckSavage]

So, recently set my app to handle all Magick image format types. I get this exception on movie types, AVI, MP4 so far.

Here's the full exception:

$exception {"FailedToExecuteCommand `"ffmpeg.exe" -nostdin -v -1 -i "C:/Users/chuck/AppData/Local/Temp/magick-Ki7wx2uvxXyPx59zL2x-OE9JdWkkInzl" -vframes 1 -vcodec pam -an -f rawvideo -y "C:/Users/chuck/AppData/Local/Temp/magick-Gq2sUH_BgZlYDwrEzFebz_KmEmhsoax3.pam"' (-1) @ error/delegate.c/ExternalDelegateCommand/478"} ImageMagick.MagickDelegateErrorException

I'm not sure if this is a bug, or something I'm doing wrong. Any ideas?

[ChuckSavage]

Got a similar exception with PDF file type.

ImageMagick.MagickDelegateErrorException
HResult=0x80131500
Message=FailedToExecuteCommand "gswin32c.exe" -q -dQUIET -dSAFER -dBATCH -dNOPAUSE -dNOPROMPT -dMaxBitmap=500000000 -dAlignToPixels=0 -dGridFitTT=2 "-sDEVICE=pngalpha" -dTextAlphaBits=4 -dGraphicsAlphaBits=4 "-r72x72" -dFirstPage=1 -dLastPage=1 "-sOutputFile=C:/Users/chuck/AppData/Local/Temp/magick-pNswIrJ0l-2Yy-ZutzMtkp84RPVUe0CX%d" "-fC:/Users/chuck/AppData/Local/Temp/magick-HX3Am-yUfFOFtRaFsJ7-1RTOnHkJX7Ft" "-fC:/Users/chuck/AppData/Local/Temp/magick-x_LsbR3Nfyw-wWmMtmP1hKzNfe9IWY6O"' (The system cannot find the file specified. ) @ error/delegate.c/ExternalDelegateCommand/475 Source=Magick.NET-Q16-AnyCPU StackTrace: at ImageMagick.NativeInstance.CheckException(IntPtr exception, IntPtr result) at ImageMagick.MagickImage.NativeMagickImage.ReadFile(IMagickSettings1 settings)
at ImageMagick.MagickImage.Read(String fileName, IMagickReadSettings`1 readSettings, Boolean ping)
at ImageMagick.MagickImageInfo.Read(String fileName)
at ImageMagick.MagickImageInfo..ctor(String fileName)

[ChuckSavage]

MPG files give:

ImageMagick.MagickDelegateErrorException
HResult=0x80131500
Message=FailedToExecuteCommand "ffmpeg.exe" -nostdin -v -1 -i "C:/Users/chuck/AppData/Local/Temp/magick-kfnKqR_LtKEFG8PGXbhG5fD4-bnNaQXP" -vframes 1 -vcodec pam -an -f rawvideo -y "C:/Users/chuck/AppData/Local/Temp/magick-lOUVGcQ5-McfuGT9I8M37Qq4w6Q8ddNK.pam"' (-1) @ error/delegate.c/ExternalDelegateCommand/478 Source=Magick.NET-Q16-AnyCPU StackTrace: at ImageMagick.NativeInstance.CheckException(IntPtr exception, IntPtr result) at ImageMagick.MagickImage.NativeMagickImage.ReadFile(IMagickSettings1 settings)
at ImageMagick.MagickImage.Read(String fileName, IMagickReadSettings`1 readSettings, Boolean ping)
at ImageMagick.MagickImageInfo.Read(String fileName)
at ImageMagick.MagickImageInfo..ctor(String fileName)

[ChuckSavage]

MPEG files give:

ImageMagick.MagickDelegateErrorException
HResult=0x80131500
Message=FailedToExecuteCommand "ffmpeg.exe" -nostdin -v -1 -i "C:/Users/chuck/AppData/Local/Temp/magick-wWOtc2F8EphWfM4RE1NNt5OD9ZVYwGp-" -vframes 1 -vcodec pam -an -f rawvideo -y "C:/Users/chuck/AppData/Local/Temp/magick--ArM68JntDKcYlJJbw7gxEylr857r3LV.pam"' (-1) @ error/delegate.c/ExternalDelegateCommand/478 Source=Magick.NET-Q16-AnyCPU StackTrace: at ImageMagick.NativeInstance.CheckException(IntPtr exception, IntPtr result) at ImageMagick.MagickImage.NativeMagickImage.ReadFile(IMagickSettings1 settings)
at ImageMagick.MagickImage.Read(String fileName, IMagickReadSettings`1 readSettings, Boolean ping)
at ImageMagick.MagickImageInfo.Read(String fileName)
at ImageMagick.MagickImageInfo..ctor(String fileName)

[ChuckSavage]

MOV files give:

ImageMagick.MagickDelegateErrorException
HResult=0x80131500
Message=FailedToExecuteCommand "ffmpeg.exe" -nostdin -v -1 -i "C:/Users/chuck/AppData/Local/Temp/magick-hdbOPFH1ySfKvW5zDTkK7f_Yo6bH-ugs" -vframes 1 -vcodec pam -an -f rawvideo -y "C:/Users/chuck/AppData/Local/Temp/magick-NeEDrpCsJDG_arKWgk1nXvpVaestLMVX.pam"' (-1) @ error/delegate.c/ExternalDelegateCommand/478 Source=Magick.NET-Q16-AnyCPU StackTrace: at ImageMagick.NativeInstance.CheckException(IntPtr exception, IntPtr result) at ImageMagick.MagickImage.NativeMagickImage.ReadFile(IMagickSettings1 settings)
at ImageMagick.MagickImage.Read(String fileName, IMagickReadSettings`1 readSettings, Boolean ping)
at ImageMagick.MagickImageInfo.Read(String fileName)
at ImageMagick.MagickImageInfo..ctor(String fileName)

[ChuckSavage]

WMV gives:

ImageMagick.MagickDelegateErrorException
HResult=0x80131500
Message=FailedToExecuteCommand "ffmpeg.exe" -nostdin -v -1 -i "C:/Users/chuck/AppData/Local/Temp/magick-iSgmJDidXqvbOqmZ-lu-YkiXkI29hY-C" -vframes 1 -vcodec pam -an -f rawvideo -y "C:/Users/chuck/AppData/Local/Temp/magick-QCbXQyz5SvOsPctbO2WPAmpzPgi-njAg.pam"' (-1) @ error/delegate.c/ExternalDelegateCommand/478 Source=Magick.NET-Q16-AnyCPU StackTrace: at ImageMagick.NativeInstance.CheckException(IntPtr exception, IntPtr result) at ImageMagick.MagickImage.NativeMagickImage.ReadFile(IMagickSettings1 settings)
at ImageMagick.MagickImage.Read(String fileName, IMagickReadSettings`1 readSettings, Boolean ping)
at ImageMagick.MagickImageInfo.Read(String fileName)
at ImageMagick.MagickImageInfo..ctor(String fileName)

[dlemstra]

Some formats require an extra executable in the bin folder of your project. For movie type files you will need ffmpeg. If you want to read PDF files you will need Ghostscript installed on your machine.

[dlemstra]

The coder is reporting that it can read the format but that does not mean it can actually read the file. And because we use an external program you will only know if it works when you try it.

What you could do that is to add a tiny PDF file to your project and attempt to read this at the start of your application.

[sanjay-vasudeva]

Appreciate your swift response.
But this is quiet misleading for magick .NET library users right. Also the file format i will be receiving is not under my control. so I cannot check before hand. It would be really nice if the MagickNET.SupportedFormats gives the actual list of files that the library can read

[dlemstra]

For various image formats we use an external program to read the image. We don't want to check for the existence of those programs everytime we start the ImageMagick library.

[sanjay-vasudeva]

then instead of throwing MagickDelegateErrorException, if we have an exception common for all non-readable files like FormatNotSupported Exception with some info in it like "Ghostscript dll is missing" would be great. Because i am not sure which exception i will receive when i load the base64, which makes it impossible to handle exceptions properly.

[dlemstra]

We are unable to do that. When we execute the command of the PDF coder we are unable to determine if it fails because the PDF is invalid or because the Ghostscript executable could not be found.

Maybe the solution for your situation would be to disable the PDF coder?

[ChuckSavage]

Ah, okay - thanks.