Add optional visualization file writers to VideoProcessor tests.

webrtc/test/BUILD.gn

 # Copyright (c) 2014 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.
 
 import("../webrtc.gni")
 import("//build/config/ui.gni")
@@ skipping 111 matching lines @@
   if (is_ios) {
     sources += [ "testsupport/iosfileutils.mm" ]
     configs += [ "//build/config/compiler:enable_arc" ]
   }
 }
 
 rtc_source_set("video_test_support") {
   testonly = true
 
   sources = [
-    "testsupport/frame_reader.cc",
     "testsupport/frame_reader.h",
-    "testsupport/frame_writer.cc",
     "testsupport/frame_writer.h",
     "testsupport/metrics/video_metrics.cc",
     "testsupport/metrics/video_metrics.h",
     "testsupport/mock/mock_frame_reader.h",
     "testsupport/mock/mock_frame_writer.h",
+    "testsupport/y4m_frame_writer.cc",
+    "testsupport/yuv_frame_reader.cc",
+    "testsupport/yuv_frame_writer.cc",
   ]
 
   deps = [
     "../base:rtc_base_approved",
     "../common_video",
     "../system_wrappers",
     "//testing/gmock",
     "//testing/gtest",
     "//third_party/gflags",
   ]
@@ skipping 102 matching lines @@
 }
 
 rtc_test("test_support_unittests") {
   deps = []
   sources = [
     "fake_network_pipe_unittest.cc",
     "frame_generator_unittest.cc",
     "rtp_file_reader_unittest.cc",
     "rtp_file_writer_unittest.cc",
     "testsupport/always_passing_unittest.cc",
-    "testsupport/frame_reader_unittest.cc",
-    "testsupport/frame_writer_unittest.cc",
     "testsupport/isolated_output_unittest.cc",
     "testsupport/metrics/video_metrics_unittest.cc",
     "testsupport/packet_reader_unittest.cc",
     "testsupport/perf_test_unittest.cc",
+    "testsupport/y4m_frame_writer_unittest.cc",
+    "testsupport/yuv_frame_reader_unittest.cc",
+    "testsupport/yuv_frame_writer_unittest.cc",
   ]
 
   # TODO(jschuh): Bug 1348: fix this warning.
   configs += [ "//build/config/compiler:no_size_t_to_int_warning" ]
 
   if (is_win) {
     cflags = [ "/wd4373" ]  # virtual override w/different const/volatile signature.
   }
 
   if (!build_with_chromium && is_clang) {
@@ skipping 179 matching lines @@
     suppressed_configs += [ "//build/config/clang:find_bad_constructs" ]
   }
 
   deps = [
     ":test_support",
     ":video_test_common",
     "../modules/media_file",
     "//testing/gtest",
   ]
 }