Remove deprecated RTCVideoRenderer constructor.

Removes -[RTCVideoRenderer initWithView]. Also, fix potential issue where we hold on to a video frame longer than the lifetime of its associated track.

BUG=3341
R=glaznev@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/16099004

git-svn-id: http://webrtc.googlecode.com/svn/trunk@7032 4adac7df-926f-26a2-2b94-8c16560cd09d

talk/app/webrtc/objc/RTCEAGLVideoView.m

@@ -173,6 +173,7 @@
     return;
   }
   [_videoTrack removeRenderer:_videoRenderer];
+  self.i420Frame = nil;
   _videoTrack = videoTrack;
   [_videoTrack addRenderer:_videoRenderer];
   // TODO(tkchin): potentially handle changes in track state - e.g. render
@@ -191,11 +192,9 @@
 // This method is called when the GLKView's content is dirty and needs to be
 // redrawn. This occurs on main thread.
 - (void)glkView:(GLKView*)view drawInRect:(CGRect)rect {
-  if (self.i420Frame) {
   // The renderer will draw the frame to the framebuffer corresponding to the
   // one used by |view|.
   [_glRenderer drawFrame:self.i420Frame];
-  }
 }
 
 #pragma mark - Private

talk/app/webrtc/objc/RTCNSGLVideoView.m

@@ -116,6 +116,9 @@ static CVReturn OnDisplayLinkFired(CVDisplayLinkRef displayLink,
   if (_videoTrack) {
     [_videoTrack removeRenderer:_videoRenderer];
     CVDisplayLinkStop(_displayLink);
+    // Clear contents.
+    self.i420Frame = nil;
+    [self drawFrame];
   }
   _videoTrack = videoTrack;
   if (_videoTrack) {
@@ -144,7 +147,7 @@ static CVReturn OnDisplayLinkFired(CVDisplayLinkRef displayLink,
 
 - (void)drawFrame {
   RTCI420Frame* i420Frame = self.i420Frame;
-  if (i420Frame && self.glRenderer.lastDrawnFrame != i420Frame) {
+  if (self.glRenderer.lastDrawnFrame != i420Frame) {
     // This method may be called from CVDisplayLink callback which isn't on the
     // main thread so we have to lock the GL context before drawing.
     CGLLockContext([[self openGLContext] CGLContextObj]);

talk/app/webrtc/objc/RTCOpenGLVideoRenderer.mm

@@ -205,16 +205,18 @@ static const GLsizei kNumTextures = 3 * kNumTextureSets;
     return NO;
   }
   [self ensureGLContext];
+  glClear(GL_COLOR_BUFFER_BIT);
+  if (frame) {
     if (![self updateTextureSizesForFrame:frame] ||
         ![self updateTextureDataForFrame:frame]) {
       return NO;
     }
-  glClear(GL_COLOR_BUFFER_BIT);
 #if !TARGET_OS_IPHONE
     glBindVertexArray(_vertexArray);
 #endif
     glBindBuffer(GL_ARRAY_BUFFER, _vertexBuffer);
     glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
+  }
 #if !TARGET_OS_IPHONE
   [_context flushBuffer];
 #endif
@@ -238,7 +240,6 @@ static const GLsizei kNumTextures = 3 * kNumTextureSets;
   }
   glUseProgram(_program);
   glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
-  glClearColor(0, 0, 0, 1);
   _isInitialized = YES;
 }
 

talk/app/webrtc/objc/RTCVideoRenderer.mm

@@ -30,10 +30,6 @@
 #endif
 
 #import "RTCVideoRenderer+Internal.h"
-
-#if TARGET_OS_IPHONE
-#import "RTCEAGLVideoView+Internal.h"
-#endif
 #import "RTCI420Frame+Internal.h"
 
 namespace webrtc {
@@ -62,9 +58,6 @@ class RTCVideoRendererAdapter : public VideoRendererInterface {
 
 @implementation RTCVideoRenderer {
   rtc::scoped_ptr<webrtc::RTCVideoRendererAdapter> _adapter;
-#if TARGET_OS_IPHONE
-  RTCEAGLVideoView* _videoView;
-#endif
 }
 
 - (instancetype)initWithDelegate:(id<RTCVideoRendererDelegate>)delegate {
@@ -75,22 +68,6 @@ class RTCVideoRendererAdapter : public VideoRendererInterface {
   return self;
 }
 
-#if TARGET_OS_IPHONE
-// TODO(tkchin): remove shim for deprecated method.
-- (instancetype)initWithView:(UIView*)view {
-  if (self = [super init]) {
-    _videoView = [[RTCEAGLVideoView alloc] initWithFrame:view.bounds];
-    _videoView.autoresizingMask =
-        UIViewAutoresizingFlexibleHeight | UIViewAutoresizingFlexibleWidth;
-    _videoView.translatesAutoresizingMaskIntoConstraints = YES;
-    [view addSubview:_videoView];
-    self.delegate = _videoView;
-    _adapter.reset(new webrtc::RTCVideoRendererAdapter(self));
-  }
-  return self;
-}
-#endif
-
 @end
 
 @implementation RTCVideoRenderer (Internal)

talk/app/webrtc/objc/public/RTCVideoRenderer.h

@@ -55,12 +55,6 @@
 // of frames.
 - (instancetype)initWithDelegate:(id<RTCVideoRendererDelegate>)delegate;
 
-#if TARGET_OS_IPHONE
-// DEPRECATED. See https://code.google.com/p/webrtc/issues/detail?id=3341 for
-// details.
-- (instancetype)initWithView:(UIView*)view;
-#endif
-
 #ifndef DOXYGEN_SHOULD_SKIP_THIS
 // Disallow init and don't add to documentation
 - (id)init __attribute__((

talk/examples/objc/AppRTCDemo/ios/APPRTCViewController.m

@@ -63,6 +63,18 @@ static CGFloat const kLocalViewPadding = 20;
 
 - (void)viewDidLoad {
   [super viewDidLoad];
+
+  self.remoteVideoView =
+      [[RTCEAGLVideoView alloc] initWithFrame:self.blackView.bounds];
+  self.remoteVideoView.delegate = self;
+  self.remoteVideoView.transform = CGAffineTransformMakeScale(-1, 1);
+  [self.blackView addSubview:self.remoteVideoView];
+
+  self.localVideoView =
+      [[RTCEAGLVideoView alloc] initWithFrame:self.blackView.bounds];
+  self.localVideoView.delegate = self;
+  [self.blackView addSubview:self.localVideoView];
+
   self.statusBarOrientation =
       [UIApplication sharedApplication].statusBarOrientation;
   self.roomInput.delegate = self;
@@ -181,25 +193,13 @@ static CGFloat const kLocalViewPadding = 20;
   self.instructionsView.hidden = NO;
   self.logView.hidden = YES;
   self.logView.text = nil;
+  self.localVideoView.videoTrack = nil;
+  self.remoteVideoView.videoTrack = nil;
   self.blackView.hidden = YES;
-  [self.remoteVideoView removeFromSuperview];
-  self.remoteVideoView = nil;
-  [self.localVideoView removeFromSuperview];
-  self.localVideoView = nil;
 }
 
 - (void)setupCaptureSession {
   self.blackView.hidden = NO;
-  self.remoteVideoView =
-      [[RTCEAGLVideoView alloc] initWithFrame:self.blackView.bounds];
-  self.remoteVideoView.delegate = self;
-  self.remoteVideoView.transform = CGAffineTransformMakeScale(-1, 1);
-  [self.blackView addSubview:self.remoteVideoView];
-
-  self.localVideoView =
-      [[RTCEAGLVideoView alloc] initWithFrame:self.blackView.bounds];
-  self.localVideoView.delegate = self;
-  [self.blackView addSubview:self.localVideoView];
   [self updateVideoViewLayout];
 }