[cast] Add optional VideoEncoder method to flush frames.

media/base/mac/videotoolbox_glue.mm

 // 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.
 
 #include "media/base/mac/videotoolbox_glue.h"
 
 #include <dlfcn.h>
 #import <Foundation/Foundation.h>
 
 #include "base/lazy_instance.h"
@@ skipping 16 matching lines @@
       VTCompressionSessionRef,
       CVImageBufferRef,
       CoreMediaGlue::CMTime,
       CoreMediaGlue::CMTime,
       CFDictionaryRef,
       void*,
       VTEncodeInfoFlags*);
   typedef CVPixelBufferPoolRef (*VTCompressionSessionGetPixelBufferPoolMethod)(
       VTCompressionSessionRef);
   typedef void (*VTCompressionSessionInvalidateMethod)(VTCompressionSessionRef);
+  typedef OSStatus (*VTCompressionSessionCompleteFramesMethod)(
+      VTCompressionSessionRef,
+      CoreMediaGlue::CMTime);
   typedef OSStatus (*VTSessionSetPropertyMethod)(VTSessionRef,
                                                  CFStringRef,
                                                  CFTypeRef);
 
   VTCompressionSessionCreateMethod VTCompressionSessionCreate;
   VTCompressionSessionEncodeFrameMethod VTCompressionSessionEncodeFrame;
   VTCompressionSessionGetPixelBufferPoolMethod
       VTCompressionSessionGetPixelBufferPool;
   VTCompressionSessionInvalidateMethod VTCompressionSessionInvalidate;
+  VTCompressionSessionCompleteFramesMethod VTCompressionSessionCompleteFrames;
   VTSessionSetPropertyMethod VTSessionSetProperty;
 
   CFStringRef* kVTCompressionPropertyKey_AllowFrameReordering;
   CFStringRef* kVTCompressionPropertyKey_AverageBitRate;
   CFStringRef* kVTCompressionPropertyKey_ColorPrimaries;
   CFStringRef* kVTCompressionPropertyKey_ExpectedFrameRate;
+  CFStringRef* kVTCompressionPropertyKey_MaxFrameDelayCount;
   CFStringRef* kVTCompressionPropertyKey_MaxKeyFrameInterval;
   CFStringRef* kVTCompressionPropertyKey_MaxKeyFrameIntervalDuration;
   CFStringRef* kVTCompressionPropertyKey_ProfileLevel;
   CFStringRef* kVTCompressionPropertyKey_RealTime;
   CFStringRef* kVTCompressionPropertyKey_TransferFunction;
   CFStringRef* kVTCompressionPropertyKey_YCbCrMatrix;
   CFStringRef* kVTEncodeFrameOptionKey_ForceKeyFrame;
   CFStringRef* kVTProfileLevel_H264_Baseline_AutoLevel;
   CFStringRef* kVTProfileLevel_H264_Main_AutoLevel;
   CFStringRef* kVTProfileLevel_H264_Extended_AutoLevel;
@@ skipping 17 matching lines @@
       return;
 
 #define LOAD_SYMBOL(SYMBOL)                                             \
   if (!LoadSymbol(#SYMBOL, reinterpret_cast<void**>(&library_.SYMBOL))) \
     return;
 
     LOAD_SYMBOL(VTCompressionSessionCreate)
     LOAD_SYMBOL(VTCompressionSessionEncodeFrame)
     LOAD_SYMBOL(VTCompressionSessionGetPixelBufferPool)
     LOAD_SYMBOL(VTCompressionSessionInvalidate)
+    LOAD_SYMBOL(VTCompressionSessionCompleteFrames)
     LOAD_SYMBOL(VTSessionSetProperty)
 
     LOAD_SYMBOL(kVTCompressionPropertyKey_AllowFrameReordering)
     LOAD_SYMBOL(kVTCompressionPropertyKey_AverageBitRate)
     LOAD_SYMBOL(kVTCompressionPropertyKey_ColorPrimaries)
     LOAD_SYMBOL(kVTCompressionPropertyKey_ExpectedFrameRate)
+    LOAD_SYMBOL(kVTCompressionPropertyKey_MaxFrameDelayCount)
     LOAD_SYMBOL(kVTCompressionPropertyKey_MaxKeyFrameInterval)
     LOAD_SYMBOL(kVTCompressionPropertyKey_MaxKeyFrameIntervalDuration)
     LOAD_SYMBOL(kVTCompressionPropertyKey_ProfileLevel)
     LOAD_SYMBOL(kVTCompressionPropertyKey_RealTime)
     LOAD_SYMBOL(kVTCompressionPropertyKey_TransferFunction)
     LOAD_SYMBOL(kVTCompressionPropertyKey_YCbCrMatrix)
     LOAD_SYMBOL(kVTEncodeFrameOptionKey_ForceKeyFrame);
     LOAD_SYMBOL(kVTProfileLevel_H264_Baseline_AutoLevel)
     LOAD_SYMBOL(kVTProfileLevel_H264_Main_AutoLevel)
     LOAD_SYMBOL(kVTProfileLevel_H264_Extended_AutoLevel)
@@ skipping 77 matching lines @@
 CVPixelBufferPoolRef VideoToolboxGlue::VTCompressionSessionGetPixelBufferPool(
     VTCompressionSessionRef session) const {
   return library_->VTCompressionSessionGetPixelBufferPool(session);
 }
 
 void VideoToolboxGlue::VTCompressionSessionInvalidate(
     VTCompressionSessionRef session) const {
   library_->VTCompressionSessionInvalidate(session);
 }
 
+OSStatus VideoToolboxGlue::VTCompressionSessionCompleteFrames(
+    VTCompressionSessionRef session,
+    CoreMediaGlue::CMTime completeUntilPresentationTimeStamp) const {
+  return library_->VTCompressionSessionCompleteFrames(
+      session, completeUntilPresentationTimeStamp);
+}
+
 OSStatus VideoToolboxGlue::VTSessionSetProperty(VTSessionRef session,
                                                 CFStringRef propertyKey,
                                                 CFTypeRef propertyValue) const {
   return library_->VTSessionSetProperty(session, propertyKey, propertyValue);
 }
 
 #define KEY_ACCESSOR(KEY) \
   CFStringRef VideoToolboxGlue::KEY() const { return *library_->KEY; }
 
 KEY_ACCESSOR(kVTCompressionPropertyKey_AllowFrameReordering)
 KEY_ACCESSOR(kVTCompressionPropertyKey_AverageBitRate)
 KEY_ACCESSOR(kVTCompressionPropertyKey_ColorPrimaries)
 KEY_ACCESSOR(kVTCompressionPropertyKey_ExpectedFrameRate)
+KEY_ACCESSOR(kVTCompressionPropertyKey_MaxFrameDelayCount)
 KEY_ACCESSOR(kVTCompressionPropertyKey_MaxKeyFrameInterval)
 KEY_ACCESSOR(kVTCompressionPropertyKey_MaxKeyFrameIntervalDuration)
 KEY_ACCESSOR(kVTCompressionPropertyKey_ProfileLevel)
 KEY_ACCESSOR(kVTCompressionPropertyKey_RealTime)
 KEY_ACCESSOR(kVTCompressionPropertyKey_TransferFunction)
 KEY_ACCESSOR(kVTCompressionPropertyKey_YCbCrMatrix)
 KEY_ACCESSOR(kVTEncodeFrameOptionKey_ForceKeyFrame)
 KEY_ACCESSOR(kVTProfileLevel_H264_Baseline_AutoLevel)
 KEY_ACCESSOR(kVTProfileLevel_H264_Main_AutoLevel)
 KEY_ACCESSOR(kVTProfileLevel_H264_Extended_AutoLevel)
 KEY_ACCESSOR(kVTProfileLevel_H264_High_AutoLevel)
 KEY_ACCESSOR(kVTVideoEncoderSpecification_EnableHardwareAcceleratedVideoEncoder)
 
 #undef KEY_ACCESSOR