Nextcloud: heic / heif previews not working

[necrevistonnezr]

Has anybody gotten heic / heif previews working on Nextcloud (both web and iOS App)?

They don't work for me. I have this in my app/data/config/config.php:

  'enable_previews' => true,
  'enabledPreviewProviders' => 
  array (
    0 => 'OC\\Preview\\TXT',
    1 => 'OC\\Preview\\MarkDown',
    2 => 'OC\\Preview\\OpenDocument',
    3 => 'OC\\Preview\\PDF',
    4 => 'OC\\Preview\\MSOffice2003',
    5 => 'OC\\Preview\\MSOfficeDoc',
    6 => 'OC\\Preview\\PDF',
    7 => 'OC\\Preview\\Image',
    8 => 'OC\\Preview\\Photoshop',
    9 => 'OC\\Preview\\TIFF',
    10 => 'OC\\Preview\\SVG',
    11 => 'OC\\Preview\\Font',
    12 => 'OC\\Preview\\MP3',
    13 => 'OC\\Preview\\Movie',
    14 => 'OC\\Preview\\MKV',
    15 => 'OC\\Preview\\MP4',
    16 => 'OC\\Preview\\HEIF',
    17 => 'OC\\Preview\\HEIC',
  ),

There's conflicting information whether one still needs to install imagemagick or not, see https://help.nextcloud.com/t/heic-mov-previews/62973/12

Running php -r 'phpinfo();' | grep HEIC in the App terminal yields no results.

[girish]

I think this is same as an issue reported in lychee - https://forum.cloudron.io/topic/4439/heic-photos-unsupported . From what I had investigated before, only the very latest imagemagick has HEIC support and we have to compile it from source to make it work.

[necrevistonnezr]

@girish said in Nextcloud: heic / heif previews not working:

From what I had investigated before, only the very latest imagemagick has HEIC support and we have to compile it from source to make it work.

Is that something already in your pipeline or should I request it?

[girish]

@necrevistonnezr I have created https://git.cloudron.io/cloudron/nextcloud-app/-/issues/83

[necrevistonnezr]

@girish said in Nextcloud: heic / heif previews not working:

@necrevistonnezr I have created https://git.cloudron.io/cloudron/nextcloud-app/-/issues/83

Thanks! There's a tutorial here https://eplt.medium.com/5-minutes-to-install-imagemagick-with-heic-support-on-ubuntu-18-04-digitalocean-fe2d09dcef1

[necrevistonnezr]

Is there progress on including a "working" imagemagick in the Nextcloud package?
When using the preview generator, I noticed that I can't generate previews for anything (PDF, TIF, heic) but JPG...
I get errors like this:

2021-11-30T15:38:51+00:00 Generating previews for /USERNAME/files/Rezepte/Salat.pdf
Error: /limitcheck in /----nostringval----
Operand stack:

Execution stack:
   %interp_exit   .runexec2   --nostringval--   --nostringval--   --nostringval--   2   %stopped_push   --nostringval--   --nostringval--   --nostringval--   false   1   %stopped_push   1990   1   3   %oparray_pop   1989   1   3   %oparray_pop   1977   1   3   %oparray_pop   1833   1   3   %oparray_pop   --nostringval--   %errorexec_pop   .runexec2   --nostringval--   --nostringval--   --nostringval--   2   %stopped_push
Dictionary stack:
   --dict:737/1123(ro)(G)--   --dict:0/20(G)--   --dict:75/200(L)--
Current allocation mode is local
GPL Ghostscript 9.50: Unrecoverable error, exit code 1
{"reqId":"0X6motfmXSuxgI5TOe0G","level":3,"time":"2021-11-30T15:38:51+00:00","remoteAddr":"","user":"--","app":"core","method":"","url":"--","message":"File: /USERNAME/files/Rezepte/Salat.pdf Imagick says:","userAgent":"--","version":"22.2.3.0","exception":{"Exception":"ImagickException","Message":"FailedToExecuteCommand `'gs' -sstdout=%stderr -dQUIET -dSAFER -dBATCH -dNOPAUSE -dNOPROMPT -dMaxBitmap=500000000 -dAlignToPixels=0 -dGridFitTT=2 '-sDEVICE=pngalpha' -dTextAlphaBits=4 -dGraphicsAlphaBits=4 '-r72x72' -dFirstPage=1 -dLastPage=1 '-sOutputFile=/tmp/magick-111364-UluFgnG4k%d' '-f/tmp/magick-1113eOHjVWLlSL3n' '-f/tmp/magick-1113oHVWEVNHXeOl'' (1) @ error/pdf.c/InvokePDFDelegate/291","Code":415,"Trace":[{"file":"/app/code/lib/private/Preview/Bitmap.php","line":86,"function":"readimage","class":"Imagick","type":"->"},{"file":"/app/code/lib/private/Preview/Bitmap.php","line":49,"function":"getResizedPreview","class":"OC\\Preview\\Bitmap","type":"->"},{"file":"/app/code/lib/private/Preview/GeneratorHelper.php","line":62,"function":"getThumbnail","class":"OC\\Preview\\Bitmap","type":"->"},{"file":"/app/code/lib/private/Preview/Generator.php","line":245,"function":"getThumbnail","class":"OC\\Preview\\GeneratorHelper","type":"->"},{"file":"/app/code/lib/private/Preview/Generator.php","line":140,"function":"getMaxPreview","class":"OC\\Preview\\Generator","type":"->"},{"file":"/app/code/lib/private/PreviewManager.php","line":204,"function":"generatePreviews","class":"OC\\Preview\\Generator","type":"->"},{"file":"/app/data/apps/previewgenerator/lib/Command/Generate.php","line":203,"function":"generatePreviews","class":"OC\\PreviewManager","type":"->"},{"file":"/app/data/apps/previewgenerator/lib/Command/Generate.php","line":174,"function":"parseFile","class":"OCA\\PreviewGenerator\\Command\\Generate","type":"->"},{"file":"/app/data/apps/previewgenerator/lib/Command/Generate.php","line":172,"function":"parseFolder","class":"OCA\\PreviewGenerator\\Command\\Generate","type":"->"},{"file":"/app/data/apps/previewgenerator/lib/Command/Generate.php","line":155,"function":"parseFolder","class":"OCA\\PreviewGenerator\\Command\\Generate","type":"->"},{"file":"/app/data/apps/previewgenerator/lib/Command/Generate.php","line":123,"function":"generateUserPreviews","class":"OCA\\PreviewGenerator\\Command\\Generate","type":"->"},{"file":"/app/code/lib/private/User/Manager.php","line":646,"function":"OCA\\PreviewGenerator\\Command\\{closure}","class":"OCA\\PreviewGenerator\\Command\\Generate","type":"->","args":["*** sensitive parameters replaced ***"]},{"file":"/app/data/apps/previewgenerator/lib/Command/Generate.php","line":124,"function":"callForSeenUsers","class":"OC\\User\\Manager","type":"->"},{"file":"/app/code/3rdparty/symfony/console/Command/Command.php","line":255,"function":"execute","class":"OCA\\PreviewGenerator\\Command\\Generate","type":"->"},{"file":"/app/code/3rdparty/symfony/console/Application.php","line":1009,"function":"run","class":"Symfony\\Component\\Console\\Command\\Command","type":"->"},{"file":"/app/code/3rdparty/symfony/console/Application.php","line":273,"function":"doRunCommand","class":"Symfony\\Component\\Console\\Application","type":"->"},{"file":"/app/code/3rdparty/symfony/console/Application.php","line":149,"function":"doRun","class":"Symfony\\Component\\Console\\Application","type":"->"},{"file":"/app/code/lib/private/Console/Application.php","line":209,"function":"run","class":"Symfony\\Component\\Console\\Application","type":"->"},{"file":"/app/code/console.php","line":99,"function":"run","class":"OC\\Console\\Application","type":"->"},{"file":"/app/code/occ","line":11,"args":["/app/code/console.php"],"function":"require_once"}],"File":"/app/code/lib/private/Preview/Bitmap.php","Line":86,"CustomMessage":"File: /USERNAME/files/Rezepte/Salat.pdf Imagick says:"}}

[nebulon]

@necrevistonnezr with your changes to the config.php proposed initially I can actually see pdf previews generated fine. For HEIC I think this is a general Ubuntu issue, many apps currently face. We have to further investigate there first.

I do wonder though if you preview generator config file adjustments and also the preview plugin should be part of the app package. Not sure how stable this Nextcloud plugin is though. Anyone have more experience here with it?