chromium/media/gpu/args.gni


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39

# Copyright 2016 The Chromium Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.

import("//build/config/chromeos/ui_mode.gni")
import("//build/config/ui.gni")

declare_args() {
  # Indicates if V4L plugin is used.
  use_v4lplugin = false

  # Indicates if Video4Linux2 codec is used. This is used for all CrOS
  # platforms which have v4l2 hardware encoder / decoder.
  use_v4l2_codec = false

  # Indicates if Video4Linux2 AML encoder is used. This is used for AML
  # platforms which have v4l2 hardware encoder
  use_v4l2_codec_aml = false

  # Indicates if VA-API-based hardware acceleration is to be used. This
  # is typically the case on x86-based ChromeOS devices.
  # VA-API should also be compiled by default on x11-using linux devices
  # using x86/x64.
  use_vaapi =
      is_linux && use_x11 && (current_cpu == "x86" || current_cpu == "x64")

  # Indicates if ChromeOS protected media support exists. This is used
  # to enable the CDM daemon in Chrome OS as well as support for
  # encrypted content with HW video decoders.
  use_chromeos_protected_media = false
}

# GN requires args that depend on other args to be declared in successive
# declare_args() blocks.
declare_args() {
  # VA-API also allows decoding of images, but we don't want to use this
  # outside of chromeos, even if video decoding is enabled.
  use_vaapi_image_codecs = use_vaapi && is_ash
}