Building FFmpeg in tree for arm

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.
 
 # TODO(ajwong): Determine if we want to statically link libz.
 
 {
   'target_defaults': {
     'conditions': [
       ['OS!="linux" and OS!="freebsd"', {'sources/': [['exclude', '/linux/']]}],
@@ skipping 31 matching lines @@
     # determine if in-tree build in Windows is tractable.
     ['(OS!="linux" and OS!="freebsd" and OS!="mac") or use_system_ffmpeg!=0', {
       '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',
+        'conditions': [
+          ['target_arch=="x64" or target_arch=="ia32"', {
+            'ffmpeg_asm_lib': 1,
+          }],
+          ['target_arch=="arm"', {
+            'ffmpeg_asm_lib': 0,
+          }],
+        ],
       },
       'targets': [
         {
           'target_name': 'ffmpegsumo',
           'product_name': 'libffmpegsumo',
           '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',
@@ skipping 25 matching lines @@
             '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',
@@ skipping 51 matching lines @@
                 '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',
               ],
             }],  # ffmpeg_branding
+            ['target_arch=="ia32" or target_arch=="x64"', {
+              'dependencies': [
+                'make_ffmpeg_asm_lib',
+              ],
+              'sources': [
+                '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',
+              ],
+            }],
             ['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
+            }],  # target_arch=="x64"
+            ['target_arch=="arm"', {
+              'defines': [
+                'PIC',
+              ],
+              'cflags': [
+                '-fPIC',
+                '-march=armv7-a',
+                '-mtune=cortex-a8',
+                '-mfpu=neon',
+                '-mfloat-abi=softfp',
+              ],
+              'sources': [
+                'source/patched-ffmpeg-mt/libavcodec/arm/dsputil_arm.c',
+                'source/patched-ffmpeg-mt/libavcodec/arm/dsputil_arm_s.S',
+                'source/patched-ffmpeg-mt/libavcodec/arm/dsputil_vfp.S',
+                'source/patched-ffmpeg-mt/libavcodec/arm/float_arm_vfp.c',
+                'source/patched-ffmpeg-mt/libavcodec/arm/jrevdct_arm.S',
+                'source/patched-ffmpeg-mt/libavcodec/arm/simple_idct_arm.S',
+                'source/patched-ffmpeg-mt/libavcodec/arm/simple_idct_armv5te.S',
+                'source/patched-ffmpeg-mt/libavcodec/arm/simple_idct_armv6.S',
+                'source/patched-ffmpeg-mt/libavcodec/arm/simple_idct_neon.S',
+              ],
+            }],  # target_arch=="arm"
             ['OS=="linux" or OS=="freebsd"', {
               'defines': [
                 '_ISOC99_SOURCE',
                 '_LARGEFILE_SOURCE',
               ],
               'cflags': [
                 '-std=c99',
                 '-pthread',
                 '-fno-math-errno',
               ],
               'cflags!': [
                 # Ensure the symbols are exported.
                 #
                 # TODO(ajwong): Fix common.gypi to only add this flag for
                 # _type != shared_library.
                 '-fvisibility=hidden',
               ],
               'link_settings': {
                 'ldflags': [
                   '-Wl,-Bsymbolic',
                   '-L<(shared_generated_dir)',
                 ],
                 'libraries': [
-                  # TODO(ajwong): When scons is dead, collapse this with the
-                  # absolute path entry inside the OS="mac" conditional, and
-                  # move it out of the conditionals block altogether.
-                  '-l<(asm_library)',
-
                   '-lz',
                 ],
+                'conditions': [
+                  ['ffmpeg_asm_lib==1', {
+                    'libraries': [
+                      # TODO(ajwong): When scons is dead, collapse this with the
+                      # absolute path entry inside the OS="mac" conditional, and
+                      # move it out of the conditionals block altogether.
+                      '-l<(asm_library)',
+                    ],
+                  }],
+                ],
               },
             }],  # OS=="linux" or OS=="freebsd"
             ['OS=="mac"', {
               'libraries': [
                 # TODO(ajwong): Move into link_settings when this is fixed:
                 #
                 # http://code.google.com/p/gyp/issues/detail?id=108
                 '<(shared_generated_dir)/<(STATIC_LIB_PREFIX)<(asm_library)<(STATIC_LIB_SUFFIX)',
               ],
               'link_settings': {
@@ skipping 44 matching lines @@
               ],
               'process_outputs_as_sources': 0,
               'message': 'Serializing build of <(asm_library).',
             },
           ],
         },
         {
           'target_name': 'assemble_ffmpeg_asm',
           'type': 'none',
           'dependencies': [
-            '../yasm/yasm.gyp:yasm',
+            '../yasm/yasm.gyp:yasm#host',
           ],
           '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': [
                 ['OS=="linux" or OS=="freebsd"', {
@@ skipping 11 matching lines @@
                     }],
                     ['target_arch=="x64"', {
                       'variables': {
                         'yasm_flags': [
                           '-DARCH_X86_64',
                           '-m', 'amd64',
                           '-DPIC',
                         ],
                       },
                     }],
+                    ['target_arch=="arm"', {
+                      'variables': {
+                        'yasm_flags': [],
+                      },
+                    }],
                   ],
                 }], ['OS=="mac"', {
                   'variables': {
                     'obj_format': 'macho',
                     'yasm_flags': [ '-DPREFIX', ],
                   },
                   'conditions': [
                     ['target_arch=="ia32"', {
                       'variables': {
                         'yasm_flags': [
@@ skipping 311 matching lines @@
       ],
     },
   ],
 }
 
 # Local Variables:
 # tab-width:2
 # indent-tabs-mode:nil
 # End:
 # vim: set expandtab tabstop=2 shiftwidth=2: