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74 lines
2.4 KiB
Plaintext
74 lines
2.4 KiB
Plaintext
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# Copyright 2014 The Chromium Authors. All rights reserved.
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# Use of this source code is governed by a BSD-style license that can be
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# found in the LICENSE file.
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import("//build/config/arm.gni")
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import("//build/config/chrome_build.gni")
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import("//build/config/chromecast_build.gni")
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import("//build/config/sanitizers/sanitizers.gni")
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if (is_chrome_branded) {
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_default_ffmpeg_branding = "Chrome"
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} else {
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_default_ffmpeg_branding = "Chromium"
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}
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if (is_chromeos && is_chrome_branded) {
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_default_ffmpeg_branding = "ChromeOS"
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}
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if (is_chromecast) {
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if (is_android) {
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_default_ffmpeg_branding = "Chrome"
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} else {
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# TODO(alokp): What audio codecs does Chromecast want here? Sort
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# out and add configs if necessary. http://crbug.com/570754
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_default_ffmpeg_branding = "ChromeOS"
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}
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}
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declare_args() {
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# Controls whether we build the Chromium or Google Chrome version of FFmpeg.
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# The Google Chrome version contains additional codecs. Typical values are
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# Chromium, Chrome, and ChromeOS.
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ffmpeg_branding = _default_ffmpeg_branding
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# Set true to build ffmpeg as a shared library. NOTE: this means we should
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# always consult is_component_ffmpeg instead of is_component_build for
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# ffmpeg targets. This helps linux chromium packagers that swap out our
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# ffmpeg.so with their own. See discussion here
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# https://groups.google.com/a/chromium.org/forum/#!msg/chromium-packagers/R5rcZXWxBEQ/B6k0zzmJbvcJ
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is_component_ffmpeg = is_component_build
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# Set to true to force the use of ffmpeg's stdatomic fallback code.
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#
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# Windows and GCC prior to 4.9 lack stdatomic.h.
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#
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# This is also useful for developers who use icecc, which relies upon
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# clang's -frewrite-includes flag which is broken with #include_next
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# directives as used in chromium's clang stdatomic.h.
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# Some background: https://bugs.llvm.org/show_bug.cgi?id=26828
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ffmpeg_use_atomics_fallback = !is_clang
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}
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assert(ffmpeg_branding == "Chromium" ||
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ffmpeg_branding == "Chrome" ||
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ffmpeg_branding == "ChromeOS")
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if (current_cpu == "x86") {
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ffmpeg_arch = "ia32"
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} else if (current_cpu == "arm" && arm_version >= 7 && arm_use_neon) {
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ffmpeg_arch = "arm-neon"
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} else {
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ffmpeg_arch = current_cpu
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}
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os_config = current_os
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if ((is_linux || is_chromeos) && is_msan) {
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os_config = "linux-noasm"
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} else if (is_chromeos || is_fuchsia) {
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os_config = "linux"
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} else if (is_win && !is_clang) {
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os_config = "win-msvc"
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}
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