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add processor skeleton
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parent
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commit
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10 changed files with 378 additions and 110 deletions
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@ -87,14 +87,9 @@ defmodule Philomena.Images.Image do
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field :removed_tags, {:array, :any}, default: [], virtual: true
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field :added_tags, {:array, :any}, default: [], virtual: true
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timestamps(inserted_at: :created_at)
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end
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field :uploaded_image, :string, virtual: true
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@doc false
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def changeset(image, attrs) do
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image
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|> cast(attrs, [])
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|> validate_required([])
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timestamps(inserted_at: :created_at)
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end
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def interaction_data(image) do
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@ -106,6 +101,32 @@ defmodule Philomena.Images.Image do
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}
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end
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@doc false
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def changeset(image, attrs) do
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image
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|> cast(attrs, [])
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|> validate_required([])
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end
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def image_changeset(image, attrs) do
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image
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|> cast(attrs, [
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:image, :image_name, :image_width, :image_height, :image_size,
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:image_format, :image_mime_type, :image_aspect_ratio,
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:image_orig_sha512_hash, :image_sha512_hash, :uploaded_image
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])
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|> validate_required([
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:image, :image_width, :image_height, :image_size,
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:image_format, :image_mime_type, :image_aspect_ratio,
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:image_orig_sha512_hash, :image_sha512_hash, :uploaded_image
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])
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|> validate_number(:image_size, greater_than: 0, less_than_or_equal_to: 26214400)
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|> validate_number(:image_width, greater_than: 0, less_than_or_equal_to: 32767)
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|> validate_number(:image_height, greater_than: 0, less_than_or_equal_to: 32767)
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|> validate_length(:image_name, max: 255, count: :bytes)
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|> validate_inclusion(:image_mime_type, ~W(image/gif image/jpeg image/png image/svg+xml video/webm))
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end
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def source_changeset(image, attrs) do
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image
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|> cast(attrs, [:source_url])
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98
lib/philomena/processors.ex
Normal file
98
lib/philomena/processors.ex
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@ -0,0 +1,98 @@
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defmodule Philomena.Processors do
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# alias Philomena.Images.Image
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# alias Philomena.Repo
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alias Philomena.Sha512
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@mimes %{
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"image/gif" => "image/gif",
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"image/jpeg" => "image/jpeg",
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"image/png" => "image/png",
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"image/svg+xml" => "image/svg+xml",
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"video/webm" => "video/webm",
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"image/svg" => "image/svg+xml",
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"audio/webm" => "video/webm"
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}
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@analyzers %{
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"image/gif" => Philomena.Analyzers.Gif,
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"image/jpeg" => Philomena.Analyzers.Jpeg,
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"image/png" => Philomena.Analyzers.Png,
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"image/svg+xml" => Philomena.Analyzers.Svg,
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"video/webm" => Philomena.Analyzers.Webm
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}
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@processors %{
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"image/gif" => Philomena.Processors.Gif,
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"image/jpeg" => Philomena.Processors.Jpeg,
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"image/png" => Philomena.Processors.Png,
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"image/svg+xml" => Philomena.Processors.Svg,
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"video/webm" => Philomena.Processors.Webm
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}
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def analysis_to_changes(analysis, file, upload_name) do
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{width, height} = analysis.dimensions
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%{size: size} = File.stat(file)
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sha512 = Sha512.file(file)
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filename = build_filename(analysis.extension)
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%{
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"image" => filename,
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"image_name" => upload_name,
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"image_width" => width,
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"image_height" => height,
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"image_size" => size,
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"image_format" => analysis.extension,
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"image_mime_type" => analysis.mime_type,
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"image_aspect_ratio" => aspect_ratio(width, height),
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"image_orig_sha512_hash" => sha512,
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"image_sha512_hash" => sha512,
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"uploaded_image" => file
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}
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end
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def after_upload(image) do
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File.cp(image.uploaded_image, Path.join([image_file_root(), image.image]))
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end
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defp aspect_ratio(_, 0), do: 0.0
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defp aspect_ratio(w, h), do: w / h
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defp build_filename(extension) do
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[
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time_identifier(),
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"/",
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usec_identifier(),
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pid_identifier(),
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".",
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extension
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]
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|> Enum.join()
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end
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defp time_identifier do
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now = DateTime.utc_now()
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Enum.join([now.year, now.month, now.day], "/")
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end
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defp usec_identifier do
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DateTime.utc_now()
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|> DateTime.to_unix(:microsecond)
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|> to_string()
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end
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defp pid_identifier do
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self()
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|> :erlang.pid_to_list()
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|> to_string()
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|> String.replace(~r/[^0-9]/, "")
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end
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defp image_file_root do
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Application.get_env(:philomena, :image_file_root)
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end
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defp image_thumbnail_root do
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image_file_root() <> "/thumbs"
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end
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end
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@ -1,59 +1,93 @@
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defmodule Philomena.Processors.Gif do
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alias Philomena.Processors.Gif
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alias Philomena.Intensities
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defstruct [:duration, :file, :palette]
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def process(analysis, file, versions) do
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dimensions = analysis.dimensions
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duration = analysis.duration
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preview = preview(duration, file)
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palette = palette(file)
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def new(analysis, file) do
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%Gif{
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file: file,
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duration: analysis.duration,
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palette: nil
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{:ok, intensities} = Intensities.file(preview)
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scaled = Enum.flat_map(versions, &scale_if_smaller(palette, file, dimensions, &1))
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%{
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intensities: intensities,
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thumbnails: scaled ++ [{:copy, preview, "rendered.png"}]
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}
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end
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def strip(processor) do
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{processor, processor.file}
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def post_process(_analysis, file) do
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%{replace_original: optimize(file)}
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end
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def preview(processor) do
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preview = Briefly.create!(extname: ".png")
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{_output, 0} =
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System.cmd("ffmpeg", ["-y", "-i", processor.file, "-ss", to_string(processor.duration / 2), "-frames:v", "1", preview])
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{processor, preview}
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end
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def optimize(processor) do
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defp optimize(file) do
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optimized = Briefly.create!(extname: ".gif")
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{_output, 0} =
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System.cmd("gifsicle", ["--careful", "-O2", processor.file, "-o", optimized])
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System.cmd("gifsicle", ["--careful", "-O2", file, "-o", optimized])
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{processor, optimized}
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optimized
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end
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def scale(processor, {width, height}) do
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processor = generate_palette(processor)
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scaled = Briefly.create!(extname: ".gif")
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defp preview(duration, file) do
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preview = Briefly.create!(extname: ".png")
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{_output, 0} =
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System.cmd("ffmpeg", ["-loglevel", "0", "-y", "-i", file, "-ss", to_string(duration / 2), "-frames:v", "1", preview])
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preview
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end
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defp palette(file) do
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palette = Briefly.create!(extname: ".png")
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{_output, 0} =
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System.cmd("ffmpeg", ["-loglevel", "0", "-y", "-i", file, "-vf", "palettegen=stats_mode=diff", palette])
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palette
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end
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# Generate full version, and WebM and MP4 previews
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defp scale_if_smaller(_palette, file, _dimensions, {:full, _target_dim}) do
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[{:symlink_original, "full.gif"}] ++ generate_videos(file)
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end
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defp scale_if_smaller(palette, file, {width, height}, {thumb_name, {target_width, target_height}}) do
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if width > target_width or height > target_height do
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scaled = scale(palette, file, {target_width, target_height})
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[{:copy, scaled, "#{thumb_name}.gif"}]
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else
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[{:symlink_original, "#{thumb_name}.gif"}]
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end
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end
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defp scale(palette, file, {width, height}) do
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scaled = Briefly.create!(extname: ".gif")
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scale_filter = "scale=w=#{width}:h=#{height}:force_original_aspect_ratio=decrease"
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palette_filter = "paletteuse=dither=bayer:bayer_scale=5:diff_mode=rectangle"
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filter_graph = "#{scale_filter} [x]; [x][1:v] #{palette_filter}"
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{_output, 0} =
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System.cmd("ffmpeg", ["-y", "-i", processor.file, "-i", processor.palette, "-lavfi", filter_graph, scaled])
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System.cmd("ffmpeg", ["-loglevel", "0", "-y", "-i", file, "-i", palette, "-lavfi", filter_graph, scaled])
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{processor, scaled}
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scaled
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end
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defp generate_palette(%{palette: nil} = processor) do
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palette = Briefly.create!(extname: ".png")
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defp generate_videos(file) do
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webm = Briefly.create!(extname: ".webm")
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mp4 = Briefly.create!(extname: ".mp4")
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{_output, 0} =
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System.cmd("ffmpeg", ["-y", "-i", processor.file, "-vf", "palettegen=stats_mode=diff", palette])
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%{processor | palette: palette}
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System.cmd("ffmpeg", ["-loglevel", "0", "-y", "-i", file, "-pix_fmt", "yuv420p", "-c:v", "libvpx", "-quality", "good", "-b:v", "5M", webm])
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{_output, 0} =
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System.cmd("ffmpeg", ["-loglevel", "0", "-y", "-i", file, "-vf", "scale=ceil(iw/2)*2:ceil(ih/2)*2", "-c:v", "libx264", "-preset", "medium", "-crf", "18", "-b:v", "5M", mp4])
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[
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{:copy, webm, "full.webm"},
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{:copy, mp4, "full.mp4"}
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]
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end
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defp generate_palette(processor), do: processor
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end
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@ -1,43 +1,64 @@
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defmodule Philomena.Processors.Jpeg do
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alias Philomena.Processors.Jpeg
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alias Philomena.Intensities
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defstruct [:file]
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def process(analysis, file, versions) do
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dimensions = analysis.dimensions
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stripped = optimize(strip(file))
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def new(_analysis, file) do
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%Jpeg{file: file}
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{:ok, intensities} = Intensities.file(stripped)
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scaled = Enum.flat_map(versions, &scale_if_smaller(stripped, dimensions, &1))
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%{
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replace_original: stripped,
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intensities: intensities,
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thumbnails: scaled
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}
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end
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def strip(processor) do
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def post_process(_analysis, _file), do: %{}
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defp strip(file) do
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stripped = Briefly.create!(extname: ".jpg")
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{_output, 0} =
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System.cmd("convert", [processor.file, "-auto-orient", "-strip", stripped])
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System.cmd("convert", [file, "-auto-orient", "-strip", stripped])
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processor = %{processor | file: stripped}
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{processor, stripped}
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stripped
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end
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def preview(processor) do
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{processor, processor.file}
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end
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def optimize(processor) do
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defp optimize(file) do
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optimized = Briefly.create!(extname: ".jpg")
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{_output, 0} =
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System.cmd("jpegtran", ["-optimize", "-outfile", optimized, processor.file])
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System.cmd("jpegtran", ["-optimize", "-outfile", optimized, file])
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optimized
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end
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def scale(processor, {width, height}) do
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defp scale_if_smaller(_file, _dimensions, {:full, _target_dim}) do
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[{:symlink_original, "full.jpg"}]
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end
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defp scale_if_smaller(file, {width, height}, {thumb_name, {target_width, target_height}}) do
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if width > target_width or height > target_height do
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scaled = scale(file, {target_width, target_height})
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[{:copy, scaled, "#{thumb_name}.jpg"}]
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else
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[{:symlink_original, "#{thumb_name}.jpg"}]
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end
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end
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defp scale(file, {width, height}) do
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scaled = Briefly.create!(extname: ".jpg")
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scale_filter = "scale=w=#{width}:h=#{height}:force_original_aspect_ratio=decrease"
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{_output, 0} =
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System.cmd("ffmpeg", ["-y", "-i", processor.file, "-vf", scale_filter, scaled])
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System.cmd("ffmpeg", ["-loglevel", "0", "-y", "-i", file, "-vf", scale_filter, scaled])
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{_output, 0} =
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System.cmd("jpegtran", ["-optimize", "-outfile", scaled, scaled])
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{processor, scaled}
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scaled
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end
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end
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@ -1,38 +1,55 @@
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defmodule Philomena.Processors.Png do
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alias Philomena.Processors.Png
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alias Philomena.Intensities
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defstruct [:file]
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def process(analysis, file, versions) do
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dimensions = analysis.dimensions
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def new(_analysis, file) do
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%Png{file: file}
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{:ok, intensities} = Intensities.file(file)
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scaled = Enum.flat_map(versions, &scale_if_smaller(file, dimensions, &1))
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%{
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intensities: intensities,
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thumbnails: scaled
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}
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end
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def strip(processor) do
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{processor, processor.file}
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def post_process(_analysis, file) do
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%{replace_original: optimize(file)}
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end
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def preview(processor) do
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{processor, processor.file}
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end
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def optimize(processor) do
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defp optimize(file) do
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optimized = Briefly.create!(extname: ".png")
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{_output, 0} =
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System.cmd("optipng", ["-fix", "-i0", "-o2", processor.file, "-out", optimized])
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System.cmd("optipng", ["-fix", "-i0", "-o2", file, "-out", optimized])
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{processor, optimized}
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optimized
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end
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def scale(processor, {width, height}) do
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defp scale_if_smaller(_file, _dimensions, {:full, _target_dim}) do
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[{:symlink_original, "full.jpg"}]
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end
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defp scale_if_smaller(file, {width, height}, {thumb_name, {target_width, target_height}}) do
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if width > target_width or height > target_height do
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scaled = scale(file, {target_width, target_height})
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[{:copy, scaled, "#{thumb_name}.jpg"}]
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else
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[{:symlink_original, "#{thumb_name}.jpg"}]
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end
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end
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defp scale(file, {width, height}) do
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scaled = Briefly.create!(extname: ".png")
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scale_filter = "scale=w=#{width}:h=#{height}:force_original_aspect_ratio=decrease"
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{_output, 0} =
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System.cmd("ffmpeg", ["-y", "-i", processor.file, "-vf", scale_filter, scaled])
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System.cmd("ffmpeg", ["-loglevel", "0", "-y", "-i", file, "-vf", scale_filter, scaled])
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{_output, 0} =
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System.cmd("optipng", ["-i0", "-o1", scaled])
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{processor, scaled}
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scaled
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end
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end
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@ -1,41 +1,49 @@
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defmodule Philomena.Processors.Svg do
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alias Philomena.Processors.Svg
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alias Philomena.Intensities
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defstruct [:file, :preview]
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def process(_analysis, file, versions) do
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preview = preview(file)
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def new(_analysis, file) do
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%Svg{file: file, preview: nil}
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{:ok, intensities} = Intensities.file(preview)
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scaled = Enum.flat_map(versions, &scale_if_smaller(file, preview, &1))
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%{
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intensities: intensities,
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thumbnails: scaled ++ [{:copy, preview, "rendered.png"}]
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}
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end
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# FIXME
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def strip(processor) do
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{processor, processor.file}
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end
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def post_process(_analysis, _file), do: %{}
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def preview(processor) do
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defp preview(file) do
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preview = Briefly.create!(extname: ".png")
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{_output, 0} =
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System.cmd("inkscape", [processor.file, "--export-png", preview])
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processor = %{processor | preview: preview}
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System.cmd("inkscape", [file, "--export-png", preview])
|
||||
|
||||
{processor, preview}
|
||||
preview
|
||||
end
|
||||
|
||||
def optimize(processor) do
|
||||
{processor, processor.file}
|
||||
defp scale_if_smaller(_file, preview, {:full, _target_dim}) do
|
||||
[{:symlink_original, "full.svg"}, {:copy, preview, "full.png"}]
|
||||
end
|
||||
|
||||
def scale(processor, {width, height}) do
|
||||
defp scale_if_smaller(_file, preview, {thumb_name, {target_width, target_height}}) do
|
||||
scaled = scale(preview, {target_width, target_height})
|
||||
|
||||
[{:copy, scaled, "#{thumb_name}.png"}]
|
||||
end
|
||||
|
||||
defp scale(preview, {width, height}) do
|
||||
scaled = Briefly.create!(extname: ".png")
|
||||
scale_filter = "scale=w=#{width}:h=#{height}:force_original_aspect_ratio=decrease"
|
||||
|
||||
{_output, 0} =
|
||||
System.cmd("ffmpeg", ["-y", "-i", processor.preview, "-vf", scale_filter, scaled])
|
||||
System.cmd("ffmpeg", ["-y", "-i", preview, "-vf", scale_filter, scaled])
|
||||
{_output, 0} =
|
||||
System.cmd("optipng", ["-i0", "-o1", scaled])
|
||||
|
||||
{processor, scaled}
|
||||
scaled
|
||||
end
|
||||
end
|
||||
|
|
@ -1,39 +1,97 @@
|
|||
defmodule Philomena.Processors.Webm do
|
||||
alias Philomena.Processors.Webm
|
||||
alias Philomena.Intensities
|
||||
import Bitwise
|
||||
|
||||
defstruct [:duration, :file]
|
||||
def process(analysis, file, versions) do
|
||||
dimensions = analysis.dimensions
|
||||
duration = analysis.duration
|
||||
preview = preview(duration, file)
|
||||
palette = gif_palette(file)
|
||||
|
||||
def new(analysis, file) do
|
||||
%Webm{duration: analysis.duration, file: file}
|
||||
{:ok, intensities} = Intensities.file(preview)
|
||||
|
||||
scaled = Enum.flat_map(versions, &scale_if_smaller(file, palette, dimensions, &1))
|
||||
|
||||
%{
|
||||
intensities: intensities,
|
||||
thumbnails: scaled ++ [{:copy, preview, "rendered.png"}]
|
||||
}
|
||||
end
|
||||
|
||||
def strip(processor) do
|
||||
{processor, processor.file}
|
||||
end
|
||||
def post_process(_analysis, _file), do: %{}
|
||||
|
||||
def preview(processor) do
|
||||
defp preview(duration, file) do
|
||||
preview = Briefly.create!(extname: ".png")
|
||||
|
||||
{_output, 0} =
|
||||
System.cmd("ffmpeg", ["-y", "-i", processor.file, "-ss", to_string(processor.duration / 2), "-frames:v", "1", preview])
|
||||
|
||||
{processor, preview}
|
||||
System.cmd("ffmpeg", ["-loglevel", "0", "-y", "-i", file, "-ss", to_string(duration / 2), "-frames:v", "1", preview])
|
||||
|
||||
preview
|
||||
end
|
||||
|
||||
def optimize(processor) do
|
||||
{processor, processor.file}
|
||||
defp scale_if_smaller(palette, file, dimensions, {:full, _target_dim}) do
|
||||
{webm, mp4} = scale_videos(file, palette, dimensions)
|
||||
|
||||
[
|
||||
{:copy, webm, "full.webm"},
|
||||
{:copy, mp4, "full.mp4"}
|
||||
]
|
||||
end
|
||||
|
||||
def scale(processor, dimensions) do
|
||||
defp scale_if_smaller(palette, file, _dimensions, {thumb_name, {target_width, target_height}}) do
|
||||
{webm, mp4} = scale_videos(file, palette, {target_width, target_height})
|
||||
|
||||
cond do
|
||||
thumb_name in [:thumb, :thumb_small, :thumb_tiny] ->
|
||||
gif = scale_gif(file, palette, {target_width, target_height})
|
||||
|
||||
[
|
||||
{:copy, webm, "#{thumb_name}.webm"},
|
||||
{:copy, mp4, "#{thumb_name}.mp4"},
|
||||
{:copy, gif, "#{thumb_name}.gif"}
|
||||
]
|
||||
|
||||
true ->
|
||||
[
|
||||
{:copy, webm, "#{thumb_name}.webm"},
|
||||
{:copy, mp4, "#{thumb_name}.mp4"}
|
||||
]
|
||||
end
|
||||
end
|
||||
|
||||
defp scale_videos(file, _palette, dimensions) do
|
||||
{width, height} = normalize_dimensions(dimensions)
|
||||
scaled = Briefly.create!(extname: ".webm")
|
||||
webm = Briefly.create!(extname: ".webm")
|
||||
mp4 = Briefly.create!(extname: ".mp4")
|
||||
scale_filter = "scale=w=#{width}:h=#{height}:force_original_aspect_ratio=decrease"
|
||||
|
||||
{_output, 0} =
|
||||
System.cmd("ffmpeg", ["-y", "-i", processor.file, "-c:v", "libvpx", "-crf", "10", "-b:v", "5M", "-vf", scale_filter, scaled])
|
||||
System.cmd("ffmpeg", ["-loglevel", "0", "-y", "-i", file, "-c:v", "libvpx", "-crf", "10", "-b:v", "5M", "-vf", scale_filter, webm])
|
||||
{_output, 0} =
|
||||
System.cmd("ffmpeg", ["-loglevel", "0", "-y", "-i", file, "-c:v", "libx264", "-preset", "medium", "-crf", "18", "-b:v", "5M", "-vf", scale_filter, mp4])
|
||||
|
||||
{processor, scaled}
|
||||
{webm, mp4}
|
||||
end
|
||||
|
||||
defp scale_gif(file, palette, {width, height}) do
|
||||
gif = Briefly.create!(extname: ".gif")
|
||||
scale_filter = "scale=w=#{width}:h=#{height}:force_original_aspect_ratio=decrease"
|
||||
palette_filter = "paletteuse=dither=bayer:bayer_scale=5:diff_mode=rectangle"
|
||||
filter_graph = "#{scale_filter} [x]; [x][1:v] #{palette_filter}"
|
||||
|
||||
{_output, 0} =
|
||||
System.cmd("ffmpeg", ["-loglevel", "0", "-y", "-i", file, "-i", palette, "-lavfi", filter_graph, gif])
|
||||
|
||||
gif
|
||||
end
|
||||
|
||||
defp gif_palette(file) do
|
||||
palette = Briefly.create!(extname: ".png")
|
||||
|
||||
{_output, 0} =
|
||||
System.cmd("ffmpeg", ["-loglevel", "0", "-y", "-i", file, "-vf", "palettegen=stats_mode=diff", palette])
|
||||
|
||||
palette
|
||||
end
|
||||
|
||||
# Force dimensions to be a multiple of 2. This is required by the
|
||||
|
|
|
|||
11
lib/philomena/sha512.ex
Normal file
11
lib/philomena/sha512.ex
Normal file
|
|
@ -0,0 +1,11 @@
|
|||
defmodule Philomena.Sha512 do
|
||||
@spec file(String.t()) :: String.t()
|
||||
def file(file) do
|
||||
hash_ref = :crypto.hash_init(:sha512)
|
||||
|
||||
File.stream!(file, [], 10_485_760)
|
||||
|> Enum.reduce(hash_ref, &:crypto.hash_update(&2, &1))
|
||||
|> :crypto.hash_final()
|
||||
|> Base.encode16(case: :lower)
|
||||
end
|
||||
end
|
||||
|
|
@ -9,7 +9,7 @@ defmodule PhilomenaWeb.Image.SourceChangeController do
|
|||
plug PhilomenaWeb.CanaryMapPlug, index: :show
|
||||
plug :load_and_authorize_resource, model: Image, id_name: "image_id", persisted: true
|
||||
|
||||
def index(conn, params) do
|
||||
def index(conn, _params) do
|
||||
image = conn.assigns.image
|
||||
|
||||
source_changes =
|
||||
|
|
|
|||
|
|
@ -55,7 +55,7 @@ if ! install_packages build-essential postgresql-11 libpq-dev nginx nodejs \
|
|||
elasticsearch esl-erlang elixir inotify-tools git \
|
||||
redis-server automake libtool zlib1g-dev ffmpeg \
|
||||
libavutil-dev libavcodec-dev libavformat-dev \
|
||||
libmagic-dev libpng-dev; then
|
||||
libmagic-dev libpng-dev gifsicle optipng libjpeg-progs; then
|
||||
>&2 echo "Installation of dependencies failed."
|
||||
exit 1
|
||||
fi
|
||||
|
|
|
|||
Loading…
Reference in a new issue