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POsetting content-type for mp4 files on s3
 

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    <p>I am adding user uploaded videos to my RoRs site with the help of the paperclip gem and s3 storage. For some reason that I can't figure out, whenever a user uploads an mp4 file, s3 sets content-type for that file as <code>application/mp4</code> instead of <code>video/mp4</code>. </p> <p>Note that I have registered mp4 mime type in an initializer file:</p> <p><code>Mime::Type.lookup_by_extension('mp4').to_s =&gt; "video/mp4"</code></p> <p>Here is the relevant part of my Post model:</p> <pre><code> has_attached_file :video, :storage =&gt; :s3, :s3_credentials =&gt; "#{Rails.root.to_s}/config/s3.yml", :path =&gt; "/video/:id/:filename" validates_attachment_content_type :video, :content_type =&gt; ['video/mp4'], :message =&gt; "Sorry, this site currently only supports MP4 video" </code></pre> <p>What am I missing in my paperclip and/or s3 set-up.</p> <p><strong>####Update#####</strong></p> <p>For some reason that is beyond my knowledge of Rails, my default mime types for mp4 contained files is the following:</p> <pre><code> MIME::Types.type_for("my_video.mp4").to_s =&gt; "[application/mp4, audio/mp4, video/mp4, video/vnd.objectvideo]" </code></pre> <p>So, when paperclip send an mp4 file to s3, it seems to identify the file's mime type as the first default, "application/mp4". That is why s3 identifies the file as having a content-type of "application/mp4". Because I want to enable streaming of these mp4 files, I need paperclip to identify the file as having a mime type of "video/mp4". </p> <p>Is there a way to modify paperclip (maybe in a before_post_process filter) to allow for this, or is there a way to modify rails through an init file to identify mp4 files as being "video/mp4". If I could do either, which way is best.</p> <p>Thanks for your help</p>
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    1. COHad a similar problem with .svg uploads. This fixed my problems: :s3_headers => { "Content-Type" => "image/svg+xml" }
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      1. USDavidMann10k
 

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