Support desktop media pipeline on Android for GN build.

media/BUILD.gn

 # Copyright 2014 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.
 
 import("//build/config/android/config.gni")
 import("//build/config/arm.gni")
 import("//build/config/features.gni")
 import("//build/config/linux/pkg_config.gni")
 import("//build/config/ui.gni")
 import("//media/media_options.gni")
@@ skipping 38 matching lines @@
   if (!media_use_ffmpeg) {
     defines += [ "MEDIA_DISABLE_FFMPEG" ]
   }
   if (is_win) {
     ldflags = [
       "/DELAYLOAD:mf.dll",
       "/DELAYLOAD:mfplat.dll",
       "/DELAYLOAD:mfreadwrite.dll",
     ]
   }
+  if (media_use_ffmpeg && is_android) {
+    defines += [
+      "ENABLE_MEDIA_PIPELINE_ON_ANDROID",
+      "DISABLE_FFMPEG_VIDEO_DECODERS",
+    ]
+  }
 }
 
 if (use_ozone) {
   action("generate_ozone_constructor_list") {
     # Ozone platform objects are auto-generated using similar
     # patterns for naming and classes constructors. Here we build the
     # object MediaOzonePlatform.
     script = "../ui/ozone/generate_constructor_list.py"
 
     platform_list_txt_file = "$target_gen_dir/../ui/ozone/platform_list.txt"
@@ skipping 288 matching lines @@
 
   if (media_use_libwebm) {
     sources += [
       "capture/webm_muxer.cc",
       "capture/webm_muxer.h",
     ]
     deps += [ "//third_party/libwebm" ]
   }
 
   if (is_android) {
+    # On Android, FFmpeg is built without video decoders. We only
+    # support hardware video decoding.
+    if (media_use_ffmpeg) {
+      sources -= [
+        "filters/ffmpeg_video_decoder.cc",
+        "filters/ffmpeg_video_decoder.h",
+      ]
+    }
     sources += [
       "capture/video/android/video_capture_device_android.cc",
       "capture/video/android/video_capture_device_android.h",
       "capture/video/android/video_capture_device_factory_android.cc",
       "capture/video/android/video_capture_device_factory_android.h",
     ]
     deps += [
       "//media/base/android",
       "//media/base/android:media_jni_headers",
       "//media/base/android:video_capture_jni_headers",
     ]
     allow_circular_includes_from = [ "//media/base/android" ]
-  } else {
+  }
+
+  if (!is_android || media_use_ffmpeg) {
     sources += [
       "filters/opus_audio_decoder.cc",
       "filters/opus_audio_decoder.h",
     ]
   }
 
   if (current_cpu != "arm" && is_chromeos) {
     sources += [
       "filters/h264_bitstream_buffer.cc",
       "filters/h264_bitstream_buffer.h",
@@ skipping 121 matching lines @@
   } else {
     sources += [
       "filters/source_buffer_platform.cc",
       "filters/source_buffer_platform.h",
     ]
   }
 
   public_deps = [
     "//media/base",
     "//media/audio",
+    "//third_party/opus",
   ]
 
   deps += [
     ":shared_memory_support",
     "//base",
     "//base:i18n",
     "//base/third_party/dynamic_annotations",
     "//crypto",
     "//crypto:platform",  # TODO(ajwong): This used to be provided by crypto.gyp via export_dependent_settings
     "//gpu/command_buffer/common",
@@ skipping 128 matching lines @@
       "//media/base/android",
       # TODO(GYP)
       #"//testing/android/native_test:native_test_native_code"
     ]
   }
 
   if (media_use_ffmpeg) {
     sources += [
       "ffmpeg/ffmpeg_common_unittest.cc",
       "filters/audio_decoder_unittest.cc",
-      "filters/audio_file_reader_unittest.cc",
-      "filters/blocking_url_protocol_unittest.cc",
       "filters/ffmpeg_demuxer_unittest.cc",
       "filters/ffmpeg_glue_unittest.cc",
-      "filters/ffmpeg_video_decoder_unittest.cc",
-      "filters/in_memory_url_protocol_unittest.cc",
     ]
+
+    # Even if FFmpeg is enabled we do not want these files on Android.
+    # TODO(watk): Refactor tests that could be made to run on Android.
+    if (!is_android) {
+      sources += [
+        "filters/audio_file_reader_unittest.cc",
+        "filters/blocking_url_protocol_unittest.cc",
+        "filters/ffmpeg_video_decoder_unittest.cc",
+        "filters/in_memory_url_protocol_unittest.cc",
+      ]
+    }
   }
 
   if (media_use_libwebm) {
     sources += [ "capture/webm_muxer_unittest.cc" ]
     deps += [ "//third_party/libwebm" ]
   }
 
   if (current_cpu != "arm" && is_chromeos) {
     sources += [ "filters/h264_bitstream_buffer_unittest.cc" ]
   }
@@ skipping 157 matching lines @@
       "//media/base:test_support",
       "//media/test:pipeline_integration_tests",
       "//testing/gmock",
       "//testing/gtest",
       "//third_party/ffmpeg",
       "//ui/gfx/geometry",
       "//ui/gfx:test_support",
     ]
   }
 }