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// Copyright 2016 The Chromium Authors
// 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 <CoreMedia/CoreMedia.h>
#include <VideoToolbox/VideoToolbox.h>
#include "base/mac/scoped_cftyperef.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(CMSampleBufferRef sbuf,
bool keyframe,
std::string* annexb_buffer);
MEDIA_EXPORT bool CopySampleBufferToAnnexBBuffer(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<VTCompressionSessionRef> session);
~SessionPropertySetter();
bool IsSupported(CFStringRef key);
bool Set(CFStringRef key, int32_t value);
bool Set(CFStringRef key, bool value);
bool Set(CFStringRef key, double value);
bool Set(CFStringRef key, CFStringRef value);
bool Set(CFStringRef key, CFArrayRef value);
private:
base::ScopedCFTypeRef<VTCompressionSessionRef> session_;
base::ScopedCFTypeRef<CFDictionaryRef> supported_keys_;
};
} // namespace video_toolbox
} // namespace media
#endif // MEDIA_BASE_MAC_VIDEOTOOLBOX_HELPERS_H_
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