[cast] Add optional VideoEncoder method to flush frames.

media/base/mac/videotoolbox_glue.h

 // 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.
 
 #ifndef MEDIA_BASE_MAC_VIDEOTOOLBOX_GLUE_H_
 #define MEDIA_BASE_MAC_VIDEOTOOLBOX_GLUE_H_
 
 #include "base/basictypes.h"
 #include "media/base/mac/coremedia_glue.h"
 #include "media/base/media_export.h"
@@ skipping 30 matching lines @@
       CoreMediaGlue::CMSampleBufferRef sampleBuffer);
 
   // Originally from VTSession.h
   typedef CFTypeRef VTSessionRef;
 
   // Originally from VTCompressionProperties.h
   CFStringRef kVTCompressionPropertyKey_AllowFrameReordering() const;
   CFStringRef kVTCompressionPropertyKey_AverageBitRate() const;
   CFStringRef kVTCompressionPropertyKey_ColorPrimaries() const;
   CFStringRef kVTCompressionPropertyKey_ExpectedFrameRate() const;
+  CFStringRef kVTCompressionPropertyKey_MaxFrameDelayCount() const;
   CFStringRef kVTCompressionPropertyKey_MaxKeyFrameInterval() const;
   CFStringRef kVTCompressionPropertyKey_MaxKeyFrameIntervalDuration() const;
   CFStringRef kVTCompressionPropertyKey_ProfileLevel() const;
   CFStringRef kVTCompressionPropertyKey_RealTime() const;
   CFStringRef kVTCompressionPropertyKey_TransferFunction() const;
   CFStringRef kVTCompressionPropertyKey_YCbCrMatrix() const;
 
   CFStringRef kVTEncodeFrameOptionKey_ForceKeyFrame() const;
 
   CFStringRef kVTProfileLevel_H264_Baseline_AutoLevel() const;
@@ skipping 21 matching lines @@
       VTCompressionSessionRef session,
       CVImageBufferRef imageBuffer,
       CoreMediaGlue::CMTime presentationTimeStamp,
       CoreMediaGlue::CMTime duration,
       CFDictionaryRef frameProperties,
       void* sourceFrameRefCon,
       VTEncodeInfoFlags* infoFlagsOut) const;
   CVPixelBufferPoolRef VTCompressionSessionGetPixelBufferPool(
       VTCompressionSessionRef session) const;
   void VTCompressionSessionInvalidate(VTCompressionSessionRef session) const;
+  OSStatus VTCompressionSessionCompleteFrames(
+      VTCompressionSessionRef session,
+      CoreMediaGlue::CMTime completeUntilPresentationTimeStamp) const;
 
   // Originally from VTSession.h
   OSStatus VTSessionSetProperty(VTSessionRef session,
                                 CFStringRef propertyKey,
                                 CFTypeRef propertyValue) const;
 
  private:
   struct Library;
   VideoToolboxGlue();
   Library* library_;
   DISALLOW_COPY_AND_ASSIGN(VideoToolboxGlue);
 };
 
 #endif  // MEDIA_BASE_MAC_VIDEOTOOLBOX_GLUE_H_