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-rw-r--r--activestorage/lib/active_storage/previewer/video_previewer.rb10
1 files changed, 8 insertions, 2 deletions
diff --git a/activestorage/lib/active_storage/previewer/video_previewer.rb b/activestorage/lib/active_storage/previewer/video_previewer.rb
index 840d87f100..49f128d142 100644
--- a/activestorage/lib/active_storage/previewer/video_previewer.rb
+++ b/activestorage/lib/active_storage/previewer/video_previewer.rb
@@ -7,11 +7,17 @@ module ActiveStorage
end
def preview
- open do |input|
- draw "ffmpeg", "-i", input.path, "-y", "-vcodec", "png", "-vf", "thumbnail", "-vframes", "1", "-f", "image2", "-" do |output|
+ download_blob_to_tempfile do |input|
+ draw_relevant_frame_from input do |output|
yield io: output, filename: "#{blob.filename.base}.png", content_type: "image/png"
end
end
end
+
+ private
+ def draw_relevant_frame_from(file, &block)
+ draw "ffmpeg", "-i", file.path, "-y", "-vcodec", "png",
+ "-vf", "thumbnail", "-vframes", "1", "-f", "image2", "-", &block
+ end
end
end