Initial commit of all previous Chrome build scripts.

ffmpeg.gyp

Index: ffmpeg.gyp
diff --git a/ffmpeg.gyp b/ffmpeg.gyp
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+# Copyright (c) 2011 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.
+
+# There's a couple key GYP variables that control how FFmpeg is built:
+#   ffmpeg_branding
+#     Controls whether we build the Chromium or Google Chrome version of
+#     FFmpeg.  The Google Chrome version contains additional codecs.
+#     Typical values are Chromium, Chrome, ChromiumOS, and ChromeOS.
+#   use_system_ffmpeg
+#     When set to non-zero will build Chromium against the system FFmpeg
+#     headers via pkg-config.  When Chromium is launched it will assume that
+#     FFmpeg is present in the system library path.  Default value is 0.
+#   build_ffmpegsumo
+#     When set to zero will build Chromium against the patched ffmpegsumo
+#     headers, but not build ffmpegsumo itself.  Users are expected to build
+#     and provide their own version of ffmpegsumo.  Default value is 1.
+#
+# TODO(ihf): Define these variables and use them.
+# LIBAVCODEC_VERSION_MAJOR=53
+# LIBAVFORMAT_VERSION_MAJOR=53
+# LIBAVUTIL_VERSION_MAJOR=51
+
+{
+  'target_defaults': {
+    'conditions': [
+      ['os_posix != 1 or OS == "mac" or OS == "openbsd"', {
+        'sources/': [['exclude', '/linux/']]
+      }],
+      ['OS != "mac"', {'sources/': [['exclude', '/mac/']]}],
+      ['OS != "win"', {'sources/': [['exclude', '/win/']]}],
+      ['OS != "openbsd"', {'sources/': [['exclude', '/openbsd/']]}],
+    ],
+    'variables': {
+      # Since we are not often debugging FFmpeg, and performance is
+      # unacceptable without optimization, freeze the optimizations to -O2.
+      # If someone really wants -O1 , they can change these in their checkout.
+      # If you want -O0, see the Gotchas in README.Chromium for why that
+      # won't work.
+      'debug_optimize': '2',
+      'mac_debug_optimization': '2',
+    },
+  },
+  'variables': {
+    # Allow overridding the selection of which FFmpeg binaries to copy via an
+    # environment variable.  Affects the ffmpeg_binaries target.
+
+    'conditions': [
+      ['armv7 == 1 and arm_neon == 1', {
+        # Need a separate config for arm+neon vs arm
+        'ffmpeg_config%': 'arm-neon',
+      }, {
+        'ffmpeg_config%': '<(target_arch)',
+      }],
+      ['OS == "mac" or OS == "win" or OS == "openbsd"', {
+        'os_config%': '<(OS)',
+      }, {  # all other Unix OS's use the linux config
+        'os_config%': 'linux',
+      }],
+      ['chromeos == 1', {
+        'ffmpeg_branding%': '<(branding)OS',
+      }, {  # otherwise, assume Chrome/Chromium.
+        'ffmpeg_branding%': '<(branding)',
+      }],
+    ],
+
+    'ffmpeg_variant%': '<(target_arch)',
+
+    'use_system_ffmpeg%': 0,
+    'build_ffmpegsumo%': 1,
+
+    # Locations for generated artifacts.
+    'shared_generated_dir': '<(SHARED_INTERMEDIATE_DIR)/third_party/ffmpeg',
+    'asm_library': 'ffmpegasm',
+  },
+  'conditions': [
+    ['OS != "win" and use_system_ffmpeg == 0 and build_ffmpegsumo != 0', {
+      'targets': [
+        {
+          'target_name': 'ffmpegsumo',
+          'type': 'loadable_module',
+          'sources': [
+            'config/<(ffmpeg_branding)/<(os_config)/<(ffmpeg_config)/config.h',
+            'config/libavutil/avconfig.h',
+          ],
+          'include_dirs': [
+            'config/<(ffmpeg_branding)/<(os_config)/<(ffmpeg_config)',
+            'patched-ffmpeg',
+            'config',
+          ],
+          'defines': [
+            'HAVE_AV_CONFIG_H',
+            '_POSIX_C_SOURCE=200112',
+            '_XOPEN_SOURCE=600',
+          ],
+          'cflags': [
+            '-fomit-frame-pointer',
+          ],
+          'includes': [
+            'ffmpeg_generated.gypi',
+          ],
+          'conditions': [
+            ['clang == 1', {
+              'xcode_settings': {
+                'WARNING_CFLAGS': [
+                  # ffmpeg uses its own deprecated functions.
+                  '-Wno-deprecated-declarations',
+                  # ffmpeg doesn't care about pointer constness.
+                  '-Wno-incompatible-pointer-types',
+                  # ffmpeg doesn't follow usual parentheses conventions.
+                  '-Wno-parentheses',
+                  # ffmpeg doesn't care about pointer signedness.
+                  '-Wno-pointer-sign',
+                  # ffmpeg doesn't believe in exhaustive switch statements.
+                  '-Wno-switch-enum',
+                ],
+              },
+              'cflags': [
+                '-Wno-deprecated-declarations',
+                '-Wno-incompatible-pointer-types',
+                '-Wno-logical-op-parentheses',
+                '-Wno-parentheses',
+                '-Wno-pointer-sign',
+                '-Wno-switch-enum',
+                # Don't emit warnings for gcc -f flags clang doesn't implement.
+                '-Qunused-arguments',
+              ],
+            }, {
+              'cflags': [
+                # gcc doesn't have flags for specific warnings, so disable them
+                # all.
+                '-w',
+              ],
+            }],
+            ['use_system_yasm == 0', {
+              'dependencies': [
+                '../yasm/yasm.gyp:yasm#host',
+              ],
+            }],
+            ['target_arch == "ia32"', {
+              'cflags!': [
+                # Turn off valgrind build option that breaks ffmpeg builds.
+                # Allows config.h HAVE_EBP_AVAILABLE 1 and HAVE_EBX_AVAILABLE 1
+                '-fno-omit-frame-pointer',
+              ],
+            }],  # target_arch == "ia32"
+            ['target_arch == "x64"', {
+              # x64 requires PIC for shared libraries. This is opposite
+              # of ia32 where due to a slew of inline assembly using ebx,
+              # FFmpeg CANNOT be built with PIC.
+              'defines': [
+                'PIC',
+              ],
+              'cflags': [
+                '-fPIC',
+              ],
+            }],  # target_arch == "x64"
+            ['target_arch == "arm"', {
+              'defines': [
+                'PIC',
+              ],
+              # TODO(ihf): See the long comment in build_ffmpeg.sh
+              # We want to be consistent with CrOS and have configured
+              # ffmpeg for thumb. Protect yourself from -marm.
+              'cflags!': [
+                '-marm',
+              ],
+              'cflags': [
+                '-fPIC',
+                '-mthumb',
+                '-march=armv7-a',
+                '-mtune=cortex-a8',
+                '-mfloat-abi=softfp',
+              ],
+              'conditions': [
+                ['arm_neon == 0', {
+                  'cflags': [
+                    '-mfpu=vfpv3-d16',
+                  ],
+                }],
+                ['arm_neon == 1', {
+                  'cflags': [
+                    '-mfpu=neon',
+                  ],
+                }],
+              ],
+            }],
+            ['os_posix == 1 and OS != "mac"', {
+              'defines': [
+                '_ISOC99_SOURCE',
+                '_LARGEFILE_SOURCE',
+                # BUG(ihf): ffmpeg compiles with this define. But according to
+                # ajwong: I wouldn't change _FILE_OFFSET_BITS.  That's a scary change
+                # cause it affects the default length of off_t, and fpos_t,
+                # which can cause strange problems if the loading code doesn't
+                # have it set and you start passing FILE*s or file descriptors
+                # between symbol contexts.
+                # '_FILE_OFFSET_BITS=64',
+              ],
+              'cflags': [
+                '-std=c99',
+                '-pthread',
+                '-fno-math-errno',
+                '-fno-signed-zeros',
+                '-fno-tree-vectorize',
+                '-fomit-frame-pointer',
+                # Don't warn about libavformat using its own deprecated APIs.
+                '-Wno-deprecated-declarations',
+              ],
+              'cflags!': [
+                # Ensure the symbols are exported.
+                #
+                # TODO(ajwong): Manually tag the API that we use to be
+                # exported.
+                '-fvisibility=hidden',
+              ],
+              'link_settings': {
+                'ldflags': [
+                  '-Wl,-Bsymbolic',
+                  '-L<(shared_generated_dir)',
+                ],
+                'libraries': [
+                  '-lz',
+                ],
+              },
+              'variables': {
+                'obj_format': 'elf',
+                'conditions': [
+                  [ 'use_system_yasm == 1', {
+                    'yasm_path': '<!(which yasm)',
+                  }, {
+                    'yasm_path': '<(PRODUCT_DIR)/yasm',
+                  }],
+                  [ 'target_arch == "ia32"', {
+                    'yasm_flags': [
+                      '-DARCH_X86_32',
+                      # The next two lines are needed to enable AVX assembly.
+                      '-Iconfig/<(ffmpeg_branding)/<(os_config)/<(ffmpeg_config)',
+                      '-Pconfig.asm',
+                      '-m', 'x86',
+                    ],
+                  }, {
+                    'yasm_flags': [
+                      '-DARCH_X86_64',
+                      '-m', 'amd64',
+                      '-DPIC',
+                      # The next two lines are needed to enable AVX assembly.
+                      '-Iconfig/<(ffmpeg_branding)/<(os_config)/<(ffmpeg_config)',
+                      '-Pconfig.asm',
+                    ],
+                  }],
+                ],
+              },
+            }],  # os_posix == 1 and OS != "mac"
+            ['OS == "openbsd"', {
+              # OpenBSD's gcc (4.2.1) does not support this flag
+              'cflags!': [
+                '-fno-signed-zeros',
+              ],
+            }],
+            ['OS == "mac"', {
+              'conditions': [
+                ['mac_breakpad == 1', {
+                  'variables': {
+                    # A real .dSYM is needed for dump_syms to operate on.
+                    'mac_real_dsym': 1,
+                  },
+                }],
+              ],
+              'link_settings': {
+                'libraries': [
+                  '$(SDKROOT)/usr/lib/libz.dylib',
+                ],
+              },
+              'xcode_settings': {
+                'GCC_SYMBOLS_PRIVATE_EXTERN': 'NO',  # No -fvisibility=hidden
+                'GCC_DYNAMIC_NO_PIC': 'YES',         # -mdynamic-no-pic
+                                                     # (equiv -fno-PIC)
+                'DYLIB_INSTALL_NAME_BASE': '@loader_path',
+                'LIBRARY_SEARCH_PATHS': [
+                  '<(shared_generated_dir)'
+                ],
+                'OTHER_LDFLAGS': [  
+                  # This is needed because FFmpeg cannot be built as PIC, and   
+                  # thus we need to instruct the linker to allow relocations  
+                  # for read-only segments for this target to be able to  
+                  # generated the shared library on Mac.  
+                  #   
+                  # This makes Mark sad, but he's okay with it since it is  
+                  # isolated to this module. When Mark finds this in the  
+                  # future, and has forgotten this conversation, this comment   
+                  # should remind him that the world is still nice and  
+                  # butterflies still exist...as do rainbows, sunshine,   
+                  # tulips, etc., etc...but not kittens. Those went away  
+                  # with this flag.   
+                  '-Wl,-read_only_relocs,suppress',
+                ],
+              },
+              'variables': {
+                'obj_format': 'macho',
+                'yasm_flags': [ '-DPREFIX' ],
+                'conditions': [
+                  [ 'use_system_yasm == 1', {
+                    'yasm_path': '<!(which yasm)',
+                  }, {
+                    'yasm_path': '<(PRODUCT_DIR)/yasm',
+                  }],
+                  [ 'target_arch == "ia32"', {
+                    'yasm_flags': [
+                      '-DARCH_X86_32',
+                      # The next two lines are needed to enable AVX assembly.
+                      '-Iconfig/<(ffmpeg_branding)/<(os_config)/<(ffmpeg_config)',
+                      '-Pconfig.asm',
+                      '-m', 'x86',
+                    ],
+                  }, {
+                    'yasm_flags': [
+                      '-DARCH_X86_64',
+                      '-m', 'amd64',
+                      '-DPIC',
+                      # The next two lines are needed to enable AVX assembly.
+                      '-Iconfig/<(ffmpeg_branding)/<(os_config)/<(ffmpeg_config)',
+                      '-Pconfig.asm',
+                    ],
+                  }],
+                ],
+              },
+            }],  # OS == "mac"
+          ],
+          'rules': [
+            {
+              'rule_name': 'assemble',
+              'extension': 'asm',
+              'inputs': [ '<(yasm_path)', ],
+              'outputs': [
+                '<(shared_generated_dir)/<(RULE_INPUT_ROOT).o',
+              ],
+              'action': [
+                '<(yasm_path)',
+                '-f', '<(obj_format)',
+                '<@(yasm_flags)',
+                '-I', 'patched-ffmpeg/libavcodec/x86/',
+                '-o', '<(shared_generated_dir)/<(RULE_INPUT_ROOT).o',
+                '<(RULE_INPUT_PATH)',
+              ],
+              'process_outputs_as_sources': 1,
+              'message': 'Build ffmpeg yasm build <(RULE_INPUT_PATH).',
+            },
+          ],
+        },
+      ],
+    }],
+  ],  # conditions
+  'targets': [
+    {
+      'variables': {
+        'generate_stubs_script': '../../tools/generate_stubs/generate_stubs.py',
+        'extra_header': 'ffmpeg_stub_headers.fragment',
+        'sig_files': [
+          # Note that these must be listed in dependency order.
+          # (i.e. if A depends on B, then B must be listed before A.)
+          'avutil-51.sigs',
+          'avcodec-53.sigs',
+          'avformat-53.sigs',
+        ],
+      },
+
+      'target_name': 'ffmpeg',
+      'msvs_guid': 'D7A94F58-576A-45D9-A45F-EB87C63ABBB0',
+      'sources': [
+        # Hacks to introduce C99 types into Visual Studio.
+        'include/win/inttypes.h',
+        'include/win/stdint.h',
+
+        # Files needed for stub generation rules.
+        '<@(sig_files)',
+        '<(extra_header)'
+      ],
+      'defines': [
+        '__STDC_CONSTANT_MACROS',  # FFmpeg uses INT64_C.
+      ],
+      'hard_dependency': 1,
+
+      # Do not fear the massive conditional blocks!  They do the following:
+      #   1) Use the Window stub generator on Windows
+      #   2) Else, use the POSIX stub generator on non-Windows
+      #     a) Use system includes when use_system_ffmpeg != 0
+      #     b) Else, use our local copy in patched-ffmpeg
+      'conditions': [
+        ['OS == "win"', {
+          'variables': {
+            'outfile_type': 'windows_lib',
+            'output_dir': '<(PRODUCT_DIR)/lib',
+            'intermediate_dir': '<(INTERMEDIATE_DIR)',
+            # TODO(scherkus): Change Windows DEPS directory so we don't need
+            # this conditional.
+            'conditions': [
+              [ 'ffmpeg_branding == "Chrome"', {
+                'ffmpeg_bin_dir': 'chrome/<(OS)/<(ffmpeg_variant)',
+              }, {  # else ffmpeg_branding != "Chrome", assume chromium.
+                'ffmpeg_bin_dir': 'chromium/<(OS)/<(ffmpeg_variant)',
+              }],
+            ],
+          },
+          'type': 'none',
+          'sources!': [
+            '<(extra_header)',
+          ],
+          'direct_dependent_settings': {
+            'include_dirs': [
+              'include/win',
+              'config',
+              'patched-ffmpeg',
+            ],
+            'link_settings': {
+              'libraries': [
+                '<(output_dir)/avcodec-53.lib',
+                '<(output_dir)/avformat-53.lib',
+                '<(output_dir)/avutil-51.lib',
+              ],
+              'msvs_settings': {
+                'VCLinkerTool': {
+                  'DelayLoadDLLs': [
+                    'avcodec-53.dll',
+                    'avformat-53.dll',
+                    'avutil-51.dll',
+                  ],
+                },
+              },
+            },
+          },
+          'rules': [
+            {
+              'rule_name': 'generate_libs',
+              'extension': 'sigs',
+              'inputs': [
+                '<(generate_stubs_script)',
+                '<@(sig_files)',
+              ],
+              'outputs': [
+                '<(output_dir)/<(RULE_INPUT_ROOT).lib',
+              ],
+              'action': ['python', '<(generate_stubs_script)',
+                         '-i', '<(intermediate_dir)',
+                         '-o', '<(output_dir)',
+                         '-t', '<(outfile_type)',
+                         '<@(RULE_INPUT_PATH)',
+              ],
+              'message': 'Generating FFmpeg import libraries.',
+            },
+          ],
+
+          # Copy prebuilt binaries to build directory.
+          'dependencies': ['../../build/win/system.gyp:cygwin'],
+          'copies': [{
+            'destination': '<(PRODUCT_DIR)/',
+            'files': [
+              'binaries/<(ffmpeg_bin_dir)/avcodec-53.dll',
+              'binaries/<(ffmpeg_bin_dir)/avformat-53.dll',
+              'binaries/<(ffmpeg_bin_dir)/avutil-51.dll',
+            ],
+          }],
+        }, {  # else OS != "win", use POSIX stub generator
+          'variables': {
+            'outfile_type': 'posix_stubs',
+            'stubs_filename_root': 'ffmpeg_stubs',
+            'project_path': 'third_party/ffmpeg',
+            'intermediate_dir': '<(INTERMEDIATE_DIR)',
+            'output_root': '<(SHARED_INTERMEDIATE_DIR)/ffmpeg',
+          },
+          'type': '<(component)',
+          'include_dirs': [
+            '<(output_root)',
+            '../..',  # The chromium 'src' directory.
+          ],
+          'direct_dependent_settings': {
+            'defines': [
+              '__STDC_CONSTANT_MACROS',  # FFmpeg uses INT64_C.
+            ],
+            'include_dirs': [
+              '<(output_root)',
+              '../..',  # The chromium 'src' directory.
+            ],
+          },
+          'actions': [
+            {
+              'action_name': 'generate_stubs',
+              'inputs': [
+                '<(generate_stubs_script)',
+                '<(extra_header)',
+                '<@(sig_files)',
+              ],
+              'outputs': [
+                '<(intermediate_dir)/<(stubs_filename_root).cc',
+                '<(output_root)/<(project_path)/<(stubs_filename_root).h',
+              ],
+              'action': ['python',
+                         '<(generate_stubs_script)',
+                         '-i', '<(intermediate_dir)',
+                         '-o', '<(output_root)/<(project_path)',
+                         '-t', '<(outfile_type)',
+                         '-e', '<(extra_header)',
+                         '-s', '<(stubs_filename_root)',
+                         '-p', '<(project_path)',
+                         '<@(_inputs)',
+              ],
+              'process_outputs_as_sources': 1,
+              'message': 'Generating FFmpeg stubs for dynamic loading.',
+            },
+          ],
+
+          'conditions': [
+            # Linux/Solaris need libdl for dlopen() and friends.
+            ['OS == "linux" or OS == "solaris"', {
+              'link_settings': {
+                'libraries': [
+                  '-ldl',
+                ],
+              },
+            }],
+
+            ['component == "shared_library"', {
+              'cflags!': ['-fvisibility=hidden'],
+            }],
+
+            # Add pkg-config result to include path when use_system_ffmpeg != 0
+            ['use_system_ffmpeg != 0', {
+              'cflags': [
+                '<!@(pkg-config --cflags libavcodec libavformat libavutil)',
+              ],
+              'direct_dependent_settings': {
+                'cflags': [
+                  '<!@(pkg-config --cflags libavcodec libavformat libavutil)',
+                ],
+              },
+            }, {  # else use_system_ffmpeg == 0, add local copy to include path
+              'include_dirs': [
+                'config',
+                'patched-ffmpeg',
+              ],
+              'direct_dependent_settings': {
+                'include_dirs': [
+                  'config',
+                  'patched-ffmpeg',
+                ],
+              },
+              'conditions': [
+                ['build_ffmpegsumo != 0', {
+                  'dependencies': [
+                    'ffmpegsumo',
+                  ],
+                }],
+              ],
+            }],
+          ],  # conditions
+        }],
+      ],  # conditions
+    },
+  ],  # targets
+}