iOS

#import "SampleHandler.h"
#import "TXRTMPSDK/TXLiveSDKTypeDef.h"
#import "TXRTMPSDK/TXLivePush.h"
#import "TXRTMPSDK/TXLiveBase.h"

static TXLivePush *s_txLivePublisher;
static NSString *s_rtmpUrl;

 - (void)initPublisher {
     if (s_txLivePublisher) {
        [s_txLivePublisher stopPush];
    }
    TXLivePushConfig* config = [[TXLivePushConfig alloc] init];
    config.customModeType |= CUSTOM_MODE_VIDEO_CAPTURE; //自定义视频模式
    config.enableAutoBitrate = YES;
    config.enableHWAcceleration = YES;

    config.customModeType |= CUSTOM_MODE_AUDIO_CAPTURE; //自定义音频模式
    config.audioSampleRate = AUDIO_SAMPLE_RATE_44100;   //系统录屏的音频采样率为44100
    config.audioChannels   = 1;

        //config.autoSampleBufferSize = YES;
        config.autoSampleBufferSize = NO;
        config.sampleBufferSize = CGSizeMake(544， 960);
    config.homeOrientation = HOME_ORIENTATION_DOWN;

    s_txLivePublisher = [[TXLivePush alloc] initWithConfig:config];
    s_txLivePublisher.delegate = self;
    //[s_txLivePublisher startPush:s_rtmpUrl];
}

  static NSString* s_resolution; //SD(标清), HD(高清), FHD(超清)
  static BOOL s_landScape; //YES:横屏， NO:竖屏

  CGSize screenSize = [[UIScreen mainScreen] currentMode].size;
    config.autoSampleBufferSize = NO;
        config.homeOrientation = HOME_ORIENTATION_DOWN;

    if ([s_resolution isEqualToString:@"SD"]) { //标清
        config.sampleBufferSize = CGSizeMake(368, (uint)(360 * screenSize.height / screenSize.width));
        config.videoBitrateMin = 400;
        config.videoBitratePIN = 800;
        config.videoBitrateMax = 1200;
        config.videoFPS = 20;
    }
    else if ([s_resolution isEqualToString:@"FHD"]) { //超清
        config.sampleBufferSize = CGSizeMake(720, (uint)(720 * screenSize.height / screenSize.width)); //建议不超过720P
        config.videoBitrateMin = 1200;
        config.videoBitratePIN = 1800;
        config.videoBitrateMax = 2400;
        config.videoFPS = 30;

    }
    else {  //高清
        config.sampleBufferSize = CGSizeMake(544, (uint)(540 * screenSize.height / screenSize.width));
        config.videoBitrateMin = 1000;
        config.videoBitratePIN = 1400;
        config.videoBitrateMax = 1800;
        config.videoFPS = 24;
    }

    if (s_landScape) { //横屏推流
        config.sampleBufferSize = CGSizeMake(config.sampleBufferSize.height, config.sampleBufferSize.width);
        config.homeOrientation = HOME_ORIENTATION_RIGHT;
    }
    [s_txLivePublisher setConfig:config];

- (void)processSampleBuffer:(CMSampleBufferRef)sampleBuffer withType:(RPSampleBufferType)sampleBufferType {
    switch (sampleBufferType) {
        case RPSampleBufferTypeVideo:
            // Handle audio sample buffer
        {
                if (!CMSampleBufferIsValid(sampleBuffer))
                    return;
            //保存一帧在 startPush 时发送,防止推流启动后或切换横竖屏因无画面数据而推流不成功
                if (s_lastSampleBuffer) {
                    CFRelease(s_lastSampleBuffer);
                    s_lastSampleBuffer = NULL;
                }
                s_lastSampleBuffer = sampleBuffer;
                CFRetain(s_lastSampleBuffer);

                [s_txLivePublisher sendVideoSampleBuffer:sampleBuffer];
        }
}



        case RPSampleBufferTypeAudioApp:
            // 来自 App 内部的音频
            [s_txLivePublisher sendAudioSampleBuffer:sampleBuffer withType:sampleBufferType];
            break;
        case RPSampleBufferTypeAudioMic:
            // 发送来自 Mic 的音频数据
            [s_txLivePublisher sendAudioSampleBuffer:sampleBuffer withType:sampleBufferType];
            break;


- (void)broadcastPaused {
    // User has requested to pause the broadcast. Samples will stop being delivered.
    [s_txLivePublisher setSendAudioSampleBufferMuted:YES];
}

- (void)broadcastResumed {
    // User has requested to resume the broadcast. Samples delivery will resume.
    [s_txLivePublisher setSendAudioSampleBufferMuted:NO];
}

-(void) onPushEvent:(int)EvtID withParam:(NSDictionary*)param {
    NSLog(@"onPushEvent %d", EvtID);
    if (EvtID == PUSH_ERR_NET_DISCONNECT) {
        [self sendLocalNotificationToHostAppWithTitle:@"腾讯云录屏推流" msg:@"推流失败!请重新启动推流" userInfo:nil];
    }  else if (EvtID == PUSH_EVT_PUSH_BEGIN) {
        [self sendLocalNotificationToHostAppWithTitle:@"腾讯云录屏推流" msg:@"连接成功！开始推流" userInfo:nil];
    } else if (EvtID == PUSH_WARNING_NET_BUSY) {
        [self sendLocalNotificationToHostAppWithTitle:@"腾讯云录屏推流" msg:@"网络上行带宽不足" userInfo:nil];
    }
}

- (void)broadcastFinished {
    // User has requested to finish the broadcast.
    if (s_txLivePublisher) {
        [s_txLivePublisher stopPush];
        s_txLivePublisher = nil;
    }
}