Revert 7698 "WebRtcVideoMediaChannel::SetSendParams: Don't cap r..."

Reason for revert is failed testcases:
WebRtcVideoEngineExtendedTestFake.ResetSimulcastSendCodecOnNewFrameSize
WebRtcVideoEngineExtendedTestFake.MultipleSendStreamsDifferentFormats

> WebRtcVideoMediaChannel::SetSendParams: Don't cap resolution
> 
> BUG=3936
> R=pthatcher@webrtc.org
> 
> Review URL: https://webrtc-codereview.appspot.com/30039004

TBR=magjed@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/28009004

git-svn-id: http://webrtc.googlecode.com/svn/trunk@7700 4adac7df-926f-26a2-2b94-8c16560cd09d

talk/media/base/fakevideocapturer.h

@@ -59,16 +59,10 @@ class FakeVideoCapturer : public cricket::VideoCapturer {
         cricket::VideoFormat::FpsToInterval(30), cricket::FOURCC_I420));
     formats.push_back(cricket::VideoFormat(640, 480,
         cricket::VideoFormat::FpsToInterval(30), cricket::FOURCC_I420));
-    formats.push_back(cricket::VideoFormat(640, 400,
-        cricket::VideoFormat::FpsToInterval(30), cricket::FOURCC_I420));
     formats.push_back(cricket::VideoFormat(320, 240,
         cricket::VideoFormat::FpsToInterval(30), cricket::FOURCC_I420));
-    formats.push_back(cricket::VideoFormat(320, 200,
-        cricket::VideoFormat::FpsToInterval(30), cricket::FOURCC_I420));
     formats.push_back(cricket::VideoFormat(160, 120,
         cricket::VideoFormat::FpsToInterval(30), cricket::FOURCC_I420));
-    formats.push_back(cricket::VideoFormat(160, 100,
-        cricket::VideoFormat::FpsToInterval(30), cricket::FOURCC_I420));
     ResetSupportedFormats(formats);
   }
   ~FakeVideoCapturer() {

talk/media/base/videocapturer_unittest.cc

@@ -341,7 +341,7 @@ TEST_F(VideoCapturerTest, TestResolutionMatch) {
   EXPECT_EQ(cricket::VideoFormat::FpsToInterval(30), best.interval);
 
   desired.width = 480;
-  desired.height = 320;
+  desired.height = 270;
   // Ask for HVGA. Get VGA.
   EXPECT_TRUE(capturer_.GetBestCaptureFormat(desired, &best));
   EXPECT_EQ(640, best.width);

talk/media/webrtc/webrtcvideoengine.cc

@@ -3872,10 +3872,18 @@ bool WebRtcVideoMediaChannel::SetSendParams(
   CapturedFrameInfo frame;
   send_channel->last_captured_frame_info().Get(&frame);
 
-  const VideoFormat max = send_channel->adapt_format();
+  // TODO(pthatcher): This checking of the max height and width is
-  if (!send_channel->last_captured_frame_info().IsSet()) {
+  // only needed because some unit tests bypass the VideoAdapter, and
-    frame.width = static_cast<size_t>(max.width);
+  // others expect behavior from the adapter different than what it
-    frame.height = static_cast<size_t>(max.height);
+  // actually does.  We should fix the tests and remove this block.
+  VideoFormat max = send_channel->adapt_format();
+  size_t max_width = static_cast<size_t>(max.width);
+  size_t max_height = static_cast<size_t>(max.height);
+  if (!send_channel->last_captured_frame_info().IsSet() ||
+      (!frame.screencast &&
+       (frame.width > max_width || frame.height > max_height))) {
+    frame.width = max_width;
+    frame.height = max_height;
   }
 
   webrtc::VideoCodec codec;

talk/media/webrtc/webrtcvideoengine_unittest.cc

@@ -677,10 +677,10 @@ TEST_F(WebRtcVideoEngineTestFake, ResetVieSendCodecOnNewFrameSize) {
   SendI420Frame(kVP8Codec.width / 2, kVP8Codec.height / 2);
   VerifyVP8SendCodec(channel_num, kVP8Codec.width / 2, kVP8Codec.height / 2);
 
-  // Capture a bigger frame and verify vie send codec has been reset to
+  // Capture a frame bigger than send_codec_ and verify vie send codec has been
-  // the new size.
+  // reset (and clipped) to send_codec_.
   SendI420Frame(kVP8Codec.width * 2, kVP8Codec.height * 2);
-  VerifyVP8SendCodec(channel_num, kVP8Codec.width * 2, kVP8Codec.height * 2);
+  VerifyVP8SendCodec(channel_num, kVP8Codec.width, kVP8Codec.height);
 }
 
 // Test that we set our inbound codecs properly.

talk/session/media/channelmanager_unittest.cc

@@ -215,13 +215,13 @@ TEST_F(ChannelManagerTest, DefaultCapturerAspectRatio) {
   VideoEncoderConfig config(codec, 1, 2);
   EXPECT_TRUE(cm_->Init());
   // A capturer created before the default encoder config is set will have no
-  // set aspect ratio, so it'll be 16:10 (based on the fake video capture impl).
+  // set aspect ratio, so it'll be 4:3 (based on the fake video capture impl).
   VideoCapturer* capturer = cm_->CreateVideoCapturer();
   ASSERT_TRUE(capturer != NULL);
   EXPECT_EQ(CS_RUNNING, capturer->Start(format));
   GetCapturerFrameSize size(capturer);
   EXPECT_EQ(640u, size.width);
-  EXPECT_EQ(400u, size.height);
+  EXPECT_EQ(480u, size.height);
   delete capturer;
   // Try again, but with the encoder config set to 16:9.
   EXPECT_TRUE(cm_->SetDefaultVideoEncoderConfig(config));