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//
// SDLStreamingDataManager.h
// SmartDeviceLink-iOS
//
// Created by Joel Fischer on 8/11/15.
// Copyright (c) 2015 smartdevicelink. All rights reserved.
//
#import <Foundation/Foundation.h>
@import VideoToolbox;
#import "SDLProtocolListener.h"
@class SDLAbstractProtocol;
NS_ASSUME_NONNULL_BEGIN
typedef NS_ENUM(NSInteger, SDLStreamingVideoError) {
SDLStreamingVideoErrorHeadUnitNACK,
SDLSTreamingVideoErrorInvalidOperatingSystemVersion,
SDLStreamingVideoErrorConfigurationCompressionSessionCreationFailure,
SDLStreamingVideoErrorConfigurationAllocationFailure,
SDLStreamingVideoErrorConfigurationCompressionSessionSetPropertyFailure
};
typedef NS_ENUM(NSInteger, SDLStreamingAudioError) {
SDLStreamingAudioErrorHeadUnitNACK
};
extern NSString *const SDLErrorDomainStreamingMediaVideo;
extern NSString *const SDLErrorDomainStreamingMediaAudio;
typedef void (^SDLStreamingStartBlock)(BOOL success, NSError *__nullable error);
@interface SDLStreamingMediaManager : NSObject <SDLProtocolListener>
- (instancetype)initWithProtocol:(SDLAbstractProtocol *)protocol;
/**
* This method will attempt to start a streaming video session. It will set up iOS's video encoder, and call out to the head unit asking if it will start a video session.
*
* @warning If this method is called on an 8.0 device, it will assert (in debug), or return a failure immediately to your block (in release).
*
* @param startBlock A block that will be called with the result of attempting to start a video session
*/
- (void)startVideoSessionWithStartBlock:(SDLStreamingStartBlock)startBlock;
/**
* This method will stop a running video session if there is one running.
*/
- (void)stopVideoSession;
/**
* This method receives raw image data and will run iOS8+'s hardware video encoder to turn the data into a video stream, which will then be passed to the connected head unit.
*
* @param imageBuffer A CVImageBufferRef to be encoded by Video Toolbox
*
* @return Whether or not the data was successfully encoded and sent.
*/
- (BOOL)sendVideoData:(CVImageBufferRef)imageBuffer;
/**
* This method will attempt to start an audio session
*
* @param startBlock A block that will be called with the result of attempting to start an audio session
*/
- (void)startAudioStreamingWithStartBlock:(SDLStreamingStartBlock)startBlock;
/**
* This method will stop a running audio session if there is one running.
*/
- (void)stopAudioSession;
/**
* This method receives PCM audio data and will attempt to send that data across to the head unit for immediate playback
*
* @param pcmAudioData The data in PCM audio format, to be played
*
* @return Whether or not the data was successfully sent.
*/
- (BOOL)sendAudioData:(NSData *)pcmAudioData;
@property (assign, nonatomic, readonly) BOOL videoSessionConnected;
@property (assign, nonatomic, readonly) BOOL audioSessionConnected;
@end
NS_ASSUME_NONNULL_END
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