Sha256: 7fc87bf09eeafef13c2a1b4fb76c496c0a1f71fddd1588ccfbea4c21e2c98340
Contents?: true
Size: 948 Bytes
Versions: 21
Compression:
Stored size: 948 Bytes
Contents
# frozen_string_literal: true
require "shellwords"
module ActiveStorage
class Previewer::VideoPreviewer < Previewer
class << self
def accept?(blob)
blob.video? && ffmpeg_exists?
end
def ffmpeg_exists?
return @ffmpeg_exists unless @ffmpeg_exists.nil?
@ffmpeg_exists = system(ffmpeg_path, "-version", out: File::NULL, err: File::NULL)
end
def ffmpeg_path
ActiveStorage.paths[:ffmpeg] || "ffmpeg"
end
end
def preview(**options)
download_blob_to_tempfile do |input|
draw_relevant_frame_from input do |output|
yield io: output, filename: "#{blob.filename.base}.jpg", content_type: "image/jpeg", **options
end
end
end
private
def draw_relevant_frame_from(file, &block)
draw self.class.ffmpeg_path, "-i", file.path, *Shellwords.split(ActiveStorage.video_preview_arguments), "-", &block
end
end
end
Version data entries
21 entries across 21 versions & 2 rubygems