Revert of H264 HW encode using VideoToolbox

media/base/mac/videotoolbox_helpers.h

-// Copyright 2016 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_HELPERS_H_
-#define MEDIA_BASE_MAC_VIDEOTOOLBOX_HELPERS_H_
-
-#include "base/mac/scoped_cftyperef.h"
-#include "media/base/mac/videotoolbox_glue.h"
-#include "media/base/media_export.h"
-
-namespace media {
-
-namespace video_toolbox {
-
-// Create a CFDictionaryRef with the given keys and values.
-MEDIA_EXPORT base::ScopedCFTypeRef<CFDictionaryRef>
-DictionaryWithKeysAndValues(CFTypeRef* keys, CFTypeRef* values, size_t size);
-
-// Create a CFDictionaryRef with the given key and value.
-MEDIA_EXPORT base::ScopedCFTypeRef<CFDictionaryRef> DictionaryWithKeyValue(
-    CFTypeRef key,
-    CFTypeRef value);
-
-// Create a CFArrayRef with the given array of integers.
-MEDIA_EXPORT base::ScopedCFTypeRef<CFArrayRef> ArrayWithIntegers(const int* v,
-                                                                 size_t size);
-
-// Create a CFArrayRef with the given int and float values.
-MEDIA_EXPORT base::ScopedCFTypeRef<CFArrayRef> ArrayWithIntegerAndFloat(
-    int int_val,
-    float float_val);
-
-// Copy a H.264 frame stored in a CM sample buffer to an Annex B buffer. Copies
-// parameter sets for keyframes before the frame data as well.
-MEDIA_EXPORT bool CopySampleBufferToAnnexBBuffer(
-    CoreMediaGlue::CMSampleBufferRef sbuf,
-    bool keyframe,
-    std::string* annexb_buffer);
-MEDIA_EXPORT bool CopySampleBufferToAnnexBBuffer(
-    CoreMediaGlue::CMSampleBufferRef sbuf,
-    bool keyframe,
-    size_t annexb_buffer_size,
-    char* annexb_buffer,
-    size_t* used_buffer_size);
-
-// Helper class to add session properties to a VTCompressionSessionRef.
-class MEDIA_EXPORT SessionPropertySetter {
- public:
-  SessionPropertySetter(
-      base::ScopedCFTypeRef<VideoToolboxGlue::VTCompressionSessionRef> session,
-      const VideoToolboxGlue* const glue);
-  ~SessionPropertySetter();
-
-  bool Set(CFStringRef key, int32_t value);
-  bool Set(CFStringRef key, bool value);
-  bool Set(CFStringRef key, CFStringRef value);
-  bool Set(CFStringRef key, CFArrayRef value);
-
- private:
-  base::ScopedCFTypeRef<VideoToolboxGlue::VTCompressionSessionRef> session_;
-  const VideoToolboxGlue* glue_;
-};
-
-}  // namespace video_toolbox
-
-}  // namespace media
-
-#endif  // MEDIA_BASE_MAC_VIDEOTOOLBOX_HELPERS_H_