Call a default image wih f:media file - typo3

Question

I'm trying to change the call of a dynamic image to a static default image, so I changed :
<f:media file="{mediaElement}" />
with :
<f:media file="{f:uri.image(src: 'paht_to_my_default_image\', treatIdAsReference:1}" />
but i get an error :
Argument 1 passed to TYPO3\CMS\Core\Resource\Rendering\RendererRegistry::getRenderer() must implement interface TYPO3\CMS\Core\Resource\FileInterface, string given, called in /var/www/src/typo3_src-7.6.32/typo3/sysext/fluid/Classes/ViewHelpers/MediaViewHelper.php on line 90
I do not know if I have a syntax error.

Answer 1

If you use the file attribute it expects a uid of a file in the filelist. You could use the f:image viewhelper and give it a src attribute:
<f:image src="path_to_my_default_image" />

Answer 2

I solved my problem, the problem was at the syntax level.
This code below works perfectly :
<f:image src="EXT:myext/Resources/typo3_logo.png"
class="img-responsive lazyload"
title="{mediaElement.originalResource.title}"
alt="{mediaElement.originalResource.alternative}"
data="{src: '{f:uri.image(image:mediaElement,
width: settings.list.media.image.width,
height: settings.list.media.image.height,
maxWidth: settings.list.media.image.maxWidth,
maxHeight: settings.list.media.image.maxHeight)}'}"
width="{f:if(condition: settings.list.media.image.width, then:
settings.list.media.image.width, else: settings.media.width)}"
height="{f:if(condition: settings.list.media.image.height, then:
settings.list.media.image.height, else: settings.media.height)}"
/>