sdk/objc/base/RTCVideoEncoderFactory.h

/*
 *  Copyright 2017 The WebRTC project authors. All Rights Reserved.
 *
 *  Use of this source code is governed by a BSD-style license
 *  that can be found in the LICENSE file in the root of the source
 *  tree. An additional intellectual property rights grant can be found
 *  in the file PATENTS.  All contributing project authors may
 *  be found in the AUTHORS file in the root of the source tree.
 */

#import <Foundation/Foundation.h>

#import "RTCMacros.h"
#import "RTCVideoCodecInfo.h"
#import "RTCVideoEncoder.h"

NS_ASSUME_NONNULL_BEGIN

/** RTCVideoEncoderFactory is an Objective-C version of
 webrtc::VideoEncoderFactory::VideoEncoderSelector.
 */
RTC_OBJC_EXPORT
@protocol RTCVideoEncoderSelector <NSObject>

- (void)registerCurrentEncoderInfo:(RTCVideoCodecInfo *)info;
- (nullable RTCVideoCodecInfo *)encoderForBitrate:(NSInteger)bitrate;
- (nullable RTCVideoCodecInfo *)encoderForBrokenEncoder;

@end

/** RTCVideoEncoderFactory is an Objective-C version of webrtc::VideoEncoderFactory. */
RTC_OBJC_EXPORT
@protocol RTCVideoEncoderFactory <NSObject>

- (nullable id<RTCVideoEncoder>)createEncoder:(RTCVideoCodecInfo *)info;
- (NSArray<RTCVideoCodecInfo *> *)supportedCodecs;  // TODO(andersc): "supportedFormats" instead?

@optional
- (NSArray<RTCVideoCodecInfo *> *)implementations;
- (nullable id<RTCVideoEncoderSelector>)encoderSelector;

@end

NS_ASSUME_NONNULL_END