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Fix performance of GIF re-encoding (#12057)

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* Change animated GIF detection to not shell out to ImageMagick

Signed-off-by: Eugen Rochko <eugen@zeonfederated.com>

* Change video encoding parameters to limit to 10800 video frames

Signed-off-by: Eugen Rochko <eugen@zeonfederated.com>

* Limit GIF image size further

Signed-off-by: Eugen Rochko <eugen@zeonfederated.com>

* Always strip metadata from video files

* Fix code style issues
This commit is contained in:
Eugen Rochko 2019-10-03 01:09:12 +02:00 • committed by GitHub
parent 0ce0baa9b5
commit ca22a22d7f
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4 changed files with 128 additions and 12 deletions
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4
app/models/concerns/attachmentable.rb
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@ -6,6 +6,7 @@ module Attachmentable
extend ActiveSupport::Concern
MAX_MATRIX_LIMIT = 16_777_216 # 4096x4096px or approx. 16MB
GIF_MATRIX_LIMIT = 921_600 # 1280x720px
included do
before_post_process :set_file_extensions
@ -42,8 +43,9 @@ module Attachmentable
next if attachment.blank? || !/image.*/.match?(attachment.content_type) || attachment.queued_for_write[:original].blank?
width, height = FastImage.size(attachment.queued_for_write[:original].path)
matrix_limit = attachment.content_type == 'image/gif' ? GIF_MATRIX_LIMIT : MAX_MATRIX_LIMIT
raise Mastodon::DimensionsValidationError, "#{width}x#{height} images are not supported, must be below #{MAX_MATRIX_LIMIT} sqpx" if width.present? && height.present? && (width * height >= MAX_MATRIX_LIMIT)
raise Mastodon::DimensionsValidationError, "#{width}x#{height} images are not supported" if width.present? && height.present? && (width * height > matrix_limit)
end
end

33
app/models/media_attachment.rb
View file

@ -65,6 +65,17 @@ class MediaAttachment < ApplicationRecord
file_geometry_parser: FastGeometryParser,
blurhash: BLURHASH_OPTIONS,
},
original: {
keep_same_format: true,
convert_options: {
output: {
'map_metadata' => '-1',
'c:v' => 'copy',
'c:a' => 'copy',
},
},
},
}.freeze
AUDIO_STYLES = {
@ -86,14 +97,15 @@ class MediaAttachment < ApplicationRecord
output: {
'loglevel' => 'fatal',
'movflags' => 'faststart',
'pix_fmt' => 'yuv420p',
'vf' => 'scale=\'trunc(iw/2)*2:trunc(ih/2)*2\'',
'vsync' => 'cfr',
'c:v' => 'h264',
'b:v' => '500K',
'maxrate' => '1300K',
'bufsize' => '1300K',
'crf' => 18,
'pix_fmt' => 'yuv420p',
'vf' => 'scale=\'trunc(iw/2)*2:trunc(ih/2)*2\'',
'vsync' => 'cfr',
'c:v' => 'h264',
'maxrate' => '1300K',
'bufsize' => '1300K',
'frames:v' => 60 * 60 * 3,
'crf' => 18,
'map_metadata' => '-1',
},
},
}.freeze
@ -103,7 +115,7 @@ class MediaAttachment < ApplicationRecord
original: VIDEO_FORMAT,
}.freeze
IMAGE_LIMIT = 8.megabytes
IMAGE_LIMIT = 10.megabytes
VIDEO_LIMIT = 40.megabytes
belongs_to :account, inverse_of: :media_attachments, optional: true
@ -244,7 +256,9 @@ class MediaAttachment < ApplicationRecord
def set_meta
meta = populate_meta
return if meta == {}
file.instance_write :meta, meta
end
@ -287,6 +301,7 @@ class MediaAttachment < ApplicationRecord
def reset_parent_cache
return if status_id.nil?
Rails.cache.delete("statuses/#{status_id}")
end
end