iOS HW H264 support.

webrtc/modules/video_coding/codecs/h264/h264.gypi

+# Copyright (c) 2015 The WebRTC project authors. All Rights Reserved.
+#
+# Use of this source code is governed by a BSD-style license
+# that can be found in the LICENSE file in the root of the source
+# tree. An additional intellectual property rights grant can be found
+# in the file PATENTS.  All contributing project authors may
+# be found in the AUTHORS file in the root of the source tree.
+
+{
+  'includes': [
+    '../../../../build/common.gypi',
+  ],
+  'targets': [
+    {
+      'target_name': 'webrtc_h264',
+      'type': 'static_library',
+      'conditions': [
+        ['OS=="ios" or OS=="mac"', {
+          'dependencies': [
+            'webrtc_h264_video_toolbox',
+          ],
+        }],
+      ],
+      'sources': [
+        'h264.mm',
+        'include/h264.h',
+      ],
+    }, # webrtc_h264
+  ],
+  'conditions': [
+    ['OS=="ios" or (OS=="mac" and mac_sdk>="10.9")', {
+      'targets': [
+        {
+          'target_name': 'webrtc_h264_video_toolbox',
+          'type': 'static_library',
+          'dependencies': [
+            '<(DEPTH)/third_party/libyuv/libyuv.gyp:libyuv',
+          ],
+          'conditions': [
+            ['OS=="mac"', {
+              'xcode_settings': {
+                'MACOSX_DEPLOYMENT_TARGET' : '10.9',
+              },
+            }],
+          ],
+          'link_settings': {
+            'xcode_settings': {
+              'OTHER_LDFLAGS': [
+                '-framework CoreMedia',
+                '-framework VideoToolbox',
+              ],
+            },
+          },
+          'sources': [
+            'h264_video_toolbox_decoder.h',
+            'h264_video_toolbox_decoder.mm',
+            'h264_video_toolbox_encoder.h',
+            'h264_video_toolbox_encoder.mm',
+            'h264_video_toolbox_nalu.h',
+            'h264_video_toolbox_nalu.mm',
+          ],
+        }, # webrtc_h264_video_toolbox
+      ], # targets
+    }], # OS=="ios" or OS=="mac"
+  ], # conditions
+}