Add yasm and ffmpeg into the build tree for linux.

third_party/ffmpeg/ffmpeg.gyp

 # Copyright (c) 2009 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.
 
 {
   'target_defaults': {
     'conditions': [
       ['OS!="linux" and OS!="freebsd"', {'sources/': [['exclude', '/linux/']]}],
       ['OS!="mac"', {'sources/': [['exclude', '/mac/']]}],
       ['OS!="win"', {'sources/': [['exclude', '/win/']]}],
     ],
+    '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
+    # Allow overridding the selection of which FFmpeg binaries to copy via an
     # environment variable.  Affects the ffmpeg_binaries target.
     'ffmpeg_branding%': '<(branding)',
     'ffmpeg_variant%': '<(target_arch)',
 
-    'use_system_ffmpeg%': 0,
+    # Locations for generated artifacts.
+    'shared_generated_dir': '<(SHARED_INTERMEDIATE_DIR)/third_party/ffmpeg',
+    'asm_library': 'ffmpegasm',
   },
+  'conditions': [
+    # This condition is for migrating from pre-built binaries to an in-tree
+    # source build.  Most of these should be removed once FFmpeg is built on
+    # mac and linux.  Windows will take more work.
+    #
+    # TODO(ajwong): Per the comment above, reduce this conditional's size and
+    # determine if in-tree build in Windows is tractable.
+    ['OS!="linux" and OS!="freebsd"', {
+      'variables': {
+        'target_for_binaries': 'ffmpeg_binaries',
+        'ffmpeg_include_root': 'include',
+      },
+    },{  # else OS=="linux"
+      'variables': {
+        'target_for_binaries': 'ffmpegsumo_nolink',
+        'ffmpeg_include_root': 'source/patched-ffmpeg-mt',
+      },
+      'targets': [
+        {
+          'target_name': 'ffmpegsumo',
+          'type': 'shared_library',
+          'dependencies': [
+            'make_ffmpeg_asm_lib',
+          ],
+          'sources': [
+            'source/patched-ffmpeg-mt/libavcodec/aac.c',
+            'source/patched-ffmpeg-mt/libavcodec/aac_ac3_parser.c',
+            'source/patched-ffmpeg-mt/libavcodec/aac_parser.c',
+            'source/patched-ffmpeg-mt/libavcodec/aactab.c',
+            'source/patched-ffmpeg-mt/libavcodec/allcodecs.c',
+            'source/patched-ffmpeg-mt/libavcodec/audioconvert.c',
+            'source/patched-ffmpeg-mt/libavcodec/avpacket.c',
+            'source/patched-ffmpeg-mt/libavcodec/bitstream.c',
+            'source/patched-ffmpeg-mt/libavcodec/bitstream_filter.c',
+            'source/patched-ffmpeg-mt/libavcodec/cabac.c',
+            'source/patched-ffmpeg-mt/libavcodec/dsputil.c',
+            'source/patched-ffmpeg-mt/libavcodec/error_resilience.c',
+            'source/patched-ffmpeg-mt/libavcodec/eval.c',
+            'source/patched-ffmpeg-mt/libavcodec/faanidct.c',
+            'source/patched-ffmpeg-mt/libavcodec/fft.c',
+            'source/patched-ffmpeg-mt/libavcodec/golomb.c',
+            'source/patched-ffmpeg-mt/libavcodec/h264.c',
+            'source/patched-ffmpeg-mt/libavcodec/h264_parser.c',
+            'source/patched-ffmpeg-mt/libavcodec/h264idct.c',
+            'source/patched-ffmpeg-mt/libavcodec/h264pred.c',
+            'source/patched-ffmpeg-mt/libavcodec/imgconvert.c',
+            'source/patched-ffmpeg-mt/libavcodec/jrevdct.c',
+            'source/patched-ffmpeg-mt/libavcodec/mdct.c',
+            'source/patched-ffmpeg-mt/libavcodec/mpeg4audio.c',
+            'source/patched-ffmpeg-mt/libavcodec/mpegaudio.c',
+            'source/patched-ffmpeg-mt/libavcodec/mpegaudio_parser.c',
+            'source/patched-ffmpeg-mt/libavcodec/mpegaudiodata.c',
+            'source/patched-ffmpeg-mt/libavcodec/mpegaudiodec.c',
+            'source/patched-ffmpeg-mt/libavcodec/mpegaudiodecheader.c',
+            'source/patched-ffmpeg-mt/libavcodec/mpegvideo.c',
+            'source/patched-ffmpeg-mt/libavcodec/opt.c',
+            'source/patched-ffmpeg-mt/libavcodec/options.c',
+            'source/patched-ffmpeg-mt/libavcodec/parser.c',
+            'source/patched-ffmpeg-mt/libavcodec/pthread.c',
+            'source/patched-ffmpeg-mt/libavcodec/raw.c',
+            'source/patched-ffmpeg-mt/libavcodec/resample.c',
+            'source/patched-ffmpeg-mt/libavcodec/resample2.c',
+            'source/patched-ffmpeg-mt/libavcodec/simple_idct.c',
+            'source/patched-ffmpeg-mt/libavcodec/utils.c',
+            'source/patched-ffmpeg-mt/libavcodec/vorbis.c',
+            'source/patched-ffmpeg-mt/libavcodec/vorbis_data.c',
+            'source/patched-ffmpeg-mt/libavcodec/vorbis_dec.c',
+            'source/patched-ffmpeg-mt/libavcodec/vp3.c',
+            'source/patched-ffmpeg-mt/libavcodec/vp3dsp.c',
+            'source/patched-ffmpeg-mt/libavcodec/x86/cpuid.c',
+            'source/patched-ffmpeg-mt/libavcodec/x86/dnxhd_mmx.c',
+            'source/patched-ffmpeg-mt/libavcodec/x86/dsputil_mmx.c',
+            'source/patched-ffmpeg-mt/libavcodec/x86/fdct_mmx.c',
+            'source/patched-ffmpeg-mt/libavcodec/x86/fft_3dn.c',
+            'source/patched-ffmpeg-mt/libavcodec/x86/fft_3dn2.c',
+            'source/patched-ffmpeg-mt/libavcodec/x86/fft_sse.c',
+            'source/patched-ffmpeg-mt/libavcodec/x86/idct_mmx_xvid.c',
+            'source/patched-ffmpeg-mt/libavcodec/x86/idct_sse2_xvid.c',
+            'source/patched-ffmpeg-mt/libavcodec/x86/motion_est_mmx.c',
+            'source/patched-ffmpeg-mt/libavcodec/x86/mpegvideo_mmx.c',
+            'source/patched-ffmpeg-mt/libavcodec/x86/simple_idct_mmx.c',
+            'source/patched-ffmpeg-mt/libavcodec/x86/vp3dsp_mmx.c',
+            'source/patched-ffmpeg-mt/libavcodec/x86/vp3dsp_sse2.c',
+            'source/patched-ffmpeg-mt/libavcodec/xiph.c',
+            'source/patched-ffmpeg-mt/libavformat/allformats.c',
+            'source/patched-ffmpeg-mt/libavformat/avio.c',
+            'source/patched-ffmpeg-mt/libavformat/aviobuf.c',
+            'source/patched-ffmpeg-mt/libavformat/cutils.c',
+            'source/patched-ffmpeg-mt/libavformat/id3v2.c',
+            'source/patched-ffmpeg-mt/libavformat/isom.c',
+            'source/patched-ffmpeg-mt/libavformat/metadata.c',
+            'source/patched-ffmpeg-mt/libavformat/metadata_compat.c',
+            'source/patched-ffmpeg-mt/libavformat/mov.c',
+            'source/patched-ffmpeg-mt/libavformat/mp3.c',
+            'source/patched-ffmpeg-mt/libavformat/oggdec.c',
+            'source/patched-ffmpeg-mt/libavformat/oggparseogm.c',
+            'source/patched-ffmpeg-mt/libavformat/oggparsetheora.c',
+            'source/patched-ffmpeg-mt/libavformat/oggparsevorbis.c',
+            'source/patched-ffmpeg-mt/libavformat/options.c',
+            'source/patched-ffmpeg-mt/libavformat/os_support.c',
+            'source/patched-ffmpeg-mt/libavformat/riff.c',
+            'source/patched-ffmpeg-mt/libavformat/sdp.c',
+            'source/patched-ffmpeg-mt/libavformat/utils.c',
+            'source/patched-ffmpeg-mt/libavutil/adler32.c',
+            'source/patched-ffmpeg-mt/libavutil/aes.c',
+            'source/patched-ffmpeg-mt/libavutil/avstring.c',
+            'source/patched-ffmpeg-mt/libavutil/base64.c',
+            'source/patched-ffmpeg-mt/libavutil/crc.c',
+            'source/patched-ffmpeg-mt/libavutil/des.c',
+            'source/patched-ffmpeg-mt/libavutil/fifo.c',
+            'source/patched-ffmpeg-mt/libavutil/intfloat_readwrite.c',
+            'source/patched-ffmpeg-mt/libavutil/lfg.c',
+            'source/patched-ffmpeg-mt/libavutil/lls.c',
+            'source/patched-ffmpeg-mt/libavutil/log.c',
+            'source/patched-ffmpeg-mt/libavutil/lzo.c',
+            'source/patched-ffmpeg-mt/libavutil/mathematics.c',
+            'source/patched-ffmpeg-mt/libavutil/md5.c',
+            'source/patched-ffmpeg-mt/libavutil/mem.c',
+            'source/patched-ffmpeg-mt/libavutil/random_seed.c',
+            'source/patched-ffmpeg-mt/libavutil/rational.c',
+            'source/patched-ffmpeg-mt/libavutil/rc4.c',
+            'source/patched-ffmpeg-mt/libavutil/sha1.c',
+            'source/patched-ffmpeg-mt/libavutil/tree.c',
+            'source/patched-ffmpeg-mt/libavutil/utils.c',
+
+            # Config file for the OS and architecture.
+            'source/config/<(ffmpeg_branding)/<(OS)/<(target_arch)/config.h',
+          ],
+          'include_dirs': [
+            'source/config/<(ffmpeg_branding)/<(OS)/<(target_arch)',
+            'source/patched-ffmpeg-mt',
+          ],
+          'cflags': [
+            '-DHAVE_AV_CONFIG_H',
+            '-D_ISOC99_SOURCE',
+            '-D_POSIX_C_SOURCE=200112',
+            '-std=c99',
+            '-D_LARGEFILE_SOURCE',
+            '-pthread',
+            '-fno-math-errno',
+            '-fomit-frame-pointer'
+          ],
+          'cflags!': [
+            # Ensure the symbols are exported.
+            '-fvisibility=hidden',
+          ],
+          'ldflags': [
+            '-Wl,-Bsymbolic',
+            '-L<(shared_generated_dir)',
+          ],
+          'libraries': [
+            '-l<(asm_library)',
+            '-lm',
+
+            # TODO(ajwong): Statically link these once we resolve the
+            # PIC/non-PIC issues on x64.
+            '-lz',
+            '-lbz2',
+          ],
+          'conditions': [
+            ['target_arch=="x64"', {
+              'cflags': [
+                # 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.
+                '-fPIC',
+                '-DPIC',
+              ],
+            }],
+            ['ffmpeg_branding!="Chrome"', {
+              'sources!': [
+                # Exclude files that should only be used if doing a branded
+                # Google Chrome build.
+                'source/patched-ffmpeg-mt/libavcodec/aac.c',
+                'source/patched-ffmpeg-mt/libavcodec/aac_ac3_parser.c',
+                'source/patched-ffmpeg-mt/libavcodec/aac_parser.c',
+                'source/patched-ffmpeg-mt/libavcodec/aactab.c',
+                'source/patched-ffmpeg-mt/libavcodec/cabac.c',
+                'source/patched-ffmpeg-mt/libavcodec/error_resilience.c',
+                'source/patched-ffmpeg-mt/libavcodec/golomb.c',
+                'source/patched-ffmpeg-mt/libavcodec/h264.c',
+                'source/patched-ffmpeg-mt/libavcodec/h264_parser.c',
+                'source/patched-ffmpeg-mt/libavcodec/h264idct.c',
+                'source/patched-ffmpeg-mt/libavcodec/h264pred.c',
+                'source/patched-ffmpeg-mt/libavcodec/mpeg4audio.c',
+                'source/patched-ffmpeg-mt/libavcodec/mpegaudio.c',
+                'source/patched-ffmpeg-mt/libavcodec/mpegaudio_parser.c',
+                'source/patched-ffmpeg-mt/libavcodec/mpegaudiodata.c',
+                'source/patched-ffmpeg-mt/libavcodec/mpegaudiodec.c',
+                'source/patched-ffmpeg-mt/libavcodec/mpegaudiodecheader.c',
+                'source/patched-ffmpeg-mt/libavcodec/mpegvideo.c',
+                'source/patched-ffmpeg-mt/libavformat/id3v2.c',
+                'source/patched-ffmpeg-mt/libavformat/isom.c',
+                'source/patched-ffmpeg-mt/libavformat/mov.c',
+                'source/patched-ffmpeg-mt/libavformat/mp3.c',
+              ],
+            }],
+          ],
+          'actions': [
+            {
+              # Needed to serialize the output of make_ffmpeg_asm_lib with
+              # this target being built.
+              'action_name': 'ffmpegasm_barrier',
+              'inputs': [
+                '<(shared_generated_dir)/<(STATIC_LIB_PREFIX)<(asm_library)<(STATIC_LIB_SUFFIX)',
+              ],
+              'outputs': [
+                '<(INTERMEDIATE_DIR)/third_party/ffmpeg/<(asm_library)'
+              ],
+              'action': [
+                'touch',
+                '<(INTERMEDIATE_DIR)/third_party/ffmpeg/<(asm_library)'
+              ],
+              'process_outputs_as_sources': 0,
+              'message': 'Serializing build of <(asm_library).',
+            },
+          ],
+        },
+        {
+          'target_name': 'assemble_ffmpeg_asm',
+          'type': 'none',
+          'dependencies': [
+            '../yasm/yasm.gyp:yasm',
+          ],
+          'sources': [
+            # The FFmpeg yasm files.
+            'source/patched-ffmpeg-mt/libavcodec/x86/dsputil_yasm.asm',
+            'source/patched-ffmpeg-mt/libavcodec/x86/fft_mmx.asm',
+          ],
+          'rules': [
+            {
+              'conditions': [
+                ['target_arch=="ia32"', {
+                  'variables': {
+                    'yasm_flags': [
+                      '-DARCH_X86_32',
+                      '-m', 'x86',
+                    ],
+                  },
+                },],
+                ['target_arch=="x64"', {
+                  'variables': {
+                    'yasm_flags': [
+                      '-DARCH_X86_64',
+                      '-m', 'amd64',
+                      '-DPIC',
+                    ],
+                  },
+                },],
+              ],
+              'rule_name': 'assemble',
+              'extension': 'asm',
+              'inputs': [ '<(PRODUCT_DIR)/yasm', ],
+              'outputs': [
+                '<(shared_generated_dir)/<(RULE_INPUT_ROOT).o',
+              ],
+              'action': [
+                '<(PRODUCT_DIR)/yasm',
+                '-f', 'elf',
+                '<@(yasm_flags)',
+                '-I', 'source/patched-ffmpeg-mt/libavcodec/x86/',
+                '-o', '<(shared_generated_dir)/<(RULE_INPUT_ROOT).o',
+                '<(RULE_INPUT_PATH)',
+              ],
+              'process_outputs_as_sources': 0,
+              'message': 'Build ffmpeg yasm build <(RULE_INPUT_PATH).',
+            },
+          ],
+        },
+        {
+          'target_name': 'make_ffmpeg_asm_lib',
+          'type': 'none',
+          'dependencies': [
+            'assemble_ffmpeg_asm',
+          ],
+          'sources': [
+          ],
+          'actions': [
+            {
+              'action_name': 'make_library',
+              'variables': {
+                # Make sure this stays in sync with the corresponding sources
+                # in assemble_ffmpeg_asm.
+                'asm_objects': [
+                  '<(shared_generated_dir)/dsputil_yasm.o',
+                  '<(shared_generated_dir)/fft_mmx.o',
+                ],
+                'library_path': '<(shared_generated_dir)/lib<(asm_library)<(STATIC_LIB_SUFFIX)',
+              },
+              'inputs': [ '<@(asm_objects)', ],
+              'outputs': [ '<(library_path)', ],
+              'action': [ 'ar', 'rcs', '<(library_path)', '<@(asm_objects)', ],
+              'process_outputs_as_sources': 0,
+              'message': 'Packate ffmpeg assembly into <(library_path).',
+            },
+          ],
+        },
+        {
+          # A target shim that allows putting a dependency on ffmpegsumo
+          # without pulling it into the link line.
+          #
+          # We use an "executable" taget without any sources to break the
+          # link line relationship to ffmpegsumo.
+          #
+          # Most people will want to depend on this target instead of on
+          # ffmpegsumo directly since ffmpegsumo is meant to be
+          # used via dlopen() in chrome.
+          'target_name': 'ffmpegsumo_nolink',
+          'type': 'executable',
+          'sources': [ 'dummy_nolink.cc' ],
+          'dependencies': [
+            'ffmpegsumo',
+          ],
+          'conditions': [
+            ['OS=="linux" or OS=="freebsd"', {
+              'copies': [
+                {
+                  # On Make and Scons builds, the library does not end up in
+                  # the PRODUCT_DIR.
+                  #
+                  # http://code.google.com/p/gyp/issues/detail?id=57
+                  #
+                  # TODO(ajwong): Fix gyp, fix the world.
+                  'destination': '<(PRODUCT_DIR)',
+                  'files': ['<(SHARED_LIB_DIR)/<(SHARED_LIB_PREFIX)ffmpegsumo<(SHARED_LIB_SUFFIX)'],
+                },
+              ],
+            }],
+          ],
+        },
+      ],
+    }],
+  ],
   'targets': [
     {
       'variables': {
         'generate_stubs_script': 'generate_stubs.py',
         '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-50.sigs',
           'avcodec-52.sigs',
           'avformat-52.sigs',
         ],
         'extra_header': 'ffmpeg_stub_headers.fragment',
       },
       'target_name': 'ffmpeg',
       'msvs_guid': 'D7A94F58-576A-45D9-A45F-EB87C63ABBB0',
       'dependencies': [
+        '<(target_for_binaries)',
         'ffmpeg_binaries',
       ],
       'sources': [
-        'include/libavcodec/avcodec.h',
-        'include/libavcodec/opt.h',
-        'include/libavcodec/vdpau.h',
-        'include/libavcodec/xvmc.h',
-        'include/libavformat/avformat.h',
-        'include/libavformat/avio.h',
-        'include/libavutil/adler32.h',
-        'include/libavutil/avstring.h',
-        'include/libavutil/avutil.h',
-        'include/libavutil/base64.h',
-        'include/libavutil/common.h',
-        'include/libavutil/crc.h',
-        'include/libavutil/fifo.h',
-        'include/libavutil/intfloat_readwrite.h',
-        'include/libavutil/log.h',
-        'include/libavutil/lzo.h',
-        'include/libavutil/mathematics.h',
-        'include/libavutil/md5.h',
-        'include/libavutil/mem.h',
-        'include/libavutil/pixfmt.h',
-        'include/libavutil/rational.h',
-        'include/libavutil/sha1.h',
+        '<(ffmpeg_include_root)/libavcodec/avcodec.h',
+        '<(ffmpeg_include_root)/libavcodec/opt.h',
+        '<(ffmpeg_include_root)/libavcodec/vdpau.h',
+        '<(ffmpeg_include_root)/libavcodec/xvmc.h',
+        '<(ffmpeg_include_root)/libavformat/avformat.h',
+        '<(ffmpeg_include_root)/libavformat/avio.h',
+        '<(ffmpeg_include_root)/libavutil/adler32.h',
+        '<(ffmpeg_include_root)/libavutil/avstring.h',
+        '<(ffmpeg_include_root)/libavutil/avutil.h',
+        '<(ffmpeg_include_root)/libavutil/base64.h',
+        '<(ffmpeg_include_root)/libavutil/common.h',
+        '<(ffmpeg_include_root)/libavutil/crc.h',
+        '<(ffmpeg_include_root)/libavutil/fifo.h',
+        '<(ffmpeg_include_root)/libavutil/intfloat_readwrite.h',
+        '<(ffmpeg_include_root)/libavutil/log.h',
+        '<(ffmpeg_include_root)/libavutil/lzo.h',
+        '<(ffmpeg_include_root)/libavutil/mathematics.h',
+        '<(ffmpeg_include_root)/libavutil/md5.h',
+        '<(ffmpeg_include_root)/libavutil/mem.h',
+        '<(ffmpeg_include_root)/libavutil/pixfmt.h',
+        '<(ffmpeg_include_root)/libavutil/rational.h',
+        '<(ffmpeg_include_root)/libavutil/sha1.h',
+
+        # 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)'
       ],
       'hard_dependency': 1,
       'direct_dependent_settings': {
         'include_dirs': [
           'include',
         ],
       },
       'conditions': [
@@ skipping 87 matching lines @@
                 '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.',
-                'process_outputs_as_sources': 1,
               },
             ],
           },
         ],
         ['OS=="linux" or OS=="freebsd"', {
           'link_settings': {
             'libraries': [
               # We need dl for dlopen() and friends.
               '-ldl',
             ],
@@ skipping 18 matching lines @@
         ['OS=="win"', {
           'variables': {
             'source_files': [
               'binaries/<(ffmpeg_bin_dir)/avcodec-52.dll',
               'binaries/<(ffmpeg_bin_dir)/avformat-52.dll',
               'binaries/<(ffmpeg_bin_dir)/avutil-50.dll',
             ],
           },
           'dependencies': ['../../build/win/system.gyp:cygwin'],
         }], ['OS=="linux" or OS=="freebsd"', {
-          'conditions': [
-            ['use_system_ffmpeg==0', {
               'variables': {
-                'source_files': [
-                  'binaries/<(ffmpeg_bin_dir)/libavcodec.so.52',
-                  'binaries/<(ffmpeg_bin_dir)/libavformat.so.52',
-                  'binaries/<(ffmpeg_bin_dir)/libavutil.so.50',
-                ],
+                # TODO(ajwong): Clean this up after we've finished
+                # migrating to in-tree build.
+                'source_files': [],
               },
-            }, {
-              'variables': {
-                'source_files': []
-              },
-            }],
-          ]},
-        ], ['OS=="mac"', {
+        }], ['OS=="mac"', {
               # TODO(ajwong): These files are also copied in:
               # webkit/tools/test_shell/test_shell.gyp and
               # chrome/chrome.gyp
               # Need to consolidate the copies in one place. (BUG=23602)
               'variables': {
                 'source_files': [
                   'binaries/<(ffmpeg_bin_dir)/libavcodec.52.dylib',
                   'binaries/<(ffmpeg_bin_dir)/libavformat.52.dylib',
                   'binaries/<(ffmpeg_bin_dir)/libavutil.50.dylib',
                 ],
@@ skipping 10 matching lines @@
       ],
     },
   ],
 }
 
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