Add content type information to encoded images and corresponding rtp extension header

webrtc/video/video_send_stream_tests.cc

Index: webrtc/video/video_send_stream_tests.cc
diff --git a/webrtc/video/video_send_stream_tests.cc b/webrtc/video/video_send_stream_tests.cc
index 2cd542a3020aa0d15f2868fcbe7e34bbaa68fb31..3ecbd1510ec9a6cd183df8a5ca2b81d032018125 100644
--- a/webrtc/video/video_send_stream_tests.cc
+++ b/webrtc/video/video_send_stream_tests.cc
@@ -291,6 +291,46 @@ TEST_F(VideoSendStreamTest, SupportsVideoRotation) {
   RunBaseTest(&test);
 }
 
+TEST_F(VideoSendStreamTest, SupportsVideoContentType) {
+  class VideoRotationObserver : public test::SendTest {
+   public:
+    VideoRotationObserver() : SendTest(kDefaultTimeoutMs) {
+      EXPECT_TRUE(parser_->RegisterRtpHeaderExtension(
+          kRtpExtensionVideoContentType, test::kVideoContentTypeExtensionId));
+    }
+
+    Action OnSendRtp(const uint8_t* packet, size_t length) override {
+      RTPHeader header;
+      EXPECT_TRUE(parser_->Parse(packet, length, &header));
+      EXPECT_TRUE(header.extension.hasVideoContentType);
+      EXPECT_EQ(kVideoContent_Screenshare, header.extension.videoContentType);
+      observation_complete_.Set();
+      return SEND_PACKET;
+    }
+
+    void ModifyVideoConfigs(
+        VideoSendStream::Config* send_config,
+        std::vector<VideoReceiveStream::Config>* receive_configs,
+        VideoEncoderConfig* encoder_config) override {
+      send_config->rtp.extensions.clear();
+      send_config->rtp.extensions.push_back(
+          RtpExtension(RtpExtension::kVideoContentTypeUri,
+                       test::kVideoContentTypeExtensionId));
+    }
+
+    void OnFrameGeneratorCapturerCreated(
+        test::FrameGeneratorCapturer* frame_generator_capturer) override {
+      frame_generator_capturer->SetFakeContentType(kVideoContent_Screenshare);
+    }
+
+    void PerformTest() override {
+      EXPECT_TRUE(Wait()) << "Timed out while waiting for single RTP packet.";
+    }
+  } test;
+
+  RunBaseTest(&test);
+}
+
 class FakeReceiveStatistics : public NullReceiveStatistics {
  public:
   FakeReceiveStatistics(uint32_t send_ssrc,
@@ -1973,7 +2013,7 @@ VideoFrame CreateVideoFrame(int width, int height, uint8_t data) {
   memset(buffer.get(), data, kSizeY);
   VideoFrame frame(
       I420Buffer::Create(width, height, width, width / 2, width / 2),
-      kVideoRotation_0, data);
+      kVideoRotation_0, kVideoContent_Default, data);
   frame.set_timestamp(data);
   // Use data as a ms timestamp.
   frame.set_timestamp_us(data * rtc::kNumMicrosecsPerMillisec);