RTSP 直播
启动设备 RTSP 会话,按照回调提供的热点流程执行,并将返回的 RTSP 地址传给兼容播放器。
Animated workflow
RTSP 启动与播放
RTSP 启动是多阶段设备与 Wi-Fi 流程。应显示各阶段,但不要将中间阶段视为最终成功。
前提条件
- 设备已连接并就绪,且符合
LiveStreamingAPI。 supportsRTSPLiveStreaming为true。- 应用已准备好执行由 SDK 管理的设备热点连接流程。
- 使用下方 SDK RTSP 播放器时,请添加
AIBudsLiveStream.xcframework。
API 参考
框架
AIBuds.xcframework、AIBudsFoundation.xcframework,以及按需添加的 AIBudsLiveStream.xcframework
导入
- Swift
- Objective-C
import AIBuds
import AIBudsFoundation
import AIBudsLiveStream#import <AIBuds/AIBuds-Swift.h>
#import <AIBuds/AIBuds.h>
#import <AIBudsFoundation/AIBudsFoundation-Swift.h>
#import <AIBudsLiveStream/AIBudsLiveStream-Swift.h>属性
- Swift
- Objective-C
/// Whether RTSP live streaming is supported
var supportsRTSPLiveStreaming: Bool { get }/// Whether RTSP live streaming is supported.
@property(nonatomic, readonly) BOOL supportsRTSPLiveStreaming;实例方法
- Swift
- Objective-C
/// Start RTSP live streaming
/// - Parameters:
/// - params: RTSP stream parameters
/// - configureHotspotStartingHandler: Configure hotspot starting handler
/// - hotspotConfigureCompletionHandler: Hotspot configure completion handler
/// - enterLiveStreamingModeStartingHandler: Enter live streaming mode starting handler
/// - enterLiveStreamingModeCompletedHandler: Enter live streaming mode completed handler
/// - waitingForHotspotOpenHandler: Waiting for hotspot open handler
/// - connectDeviceHotspotStartingHandler: Connect device hotspot starting handler
/// - deviceHotspotConnectCompletionHandler: Device hotspot connect completion handler
/// - rtspAddressReceivedHandler: RTSP address received handler
/// - sessionStartCompletionHandler: Session start completion handler
/// - sessionFinishHandler: Session finish handler
func startRTSPLiveStreaming(
withParams params: RTSPStreamParams,
configureHotspotStartingHandler: AIBudsLiveStreamingConfigureHotspotStartingHandler?,
hotspotConfigureCompletionHandler: AIBudsLiveStreamingHotspotConfigureCompletionHandler?,
enterLiveStreamingModeStartingHandler: AIBudsEnterLiveStreamingModeStartingHandler?,
enterLiveStreamingModeCompletedHandler: AIBudsEnterLiveStreamingModeCompletionHandler?,
waitingForHotspotOpenHandler: AIBudsLiveStreamingStartingToWaitForHotspotOpenHandler?,
connectDeviceHotspotStartingHandler: AIBudsLiveStreamingConnectDeviceHotspotStartingHandler?,
deviceHotspotConnectCompletionHandler:
AIBudsLiveStreamingDeviceHotspotConnectCompletionHandler?,
rtspAddressReceivedHandler: AIBudsLiveStreamingRtspAddressReceivedHandler?,
sessionStartCompletionHandler: AIBudsLiveStreamingSessionStartCompletionHandler?,
sessionFinishHandler: AIBudsLiveStreamingSessionFinishHandler?
)/// Start RTSP live streaming
/// - Parameters:
/// - params: RTSP stream parameters
/// - configureHotspotStartingHandler: Configure hotspot starting handler
/// - hotspotConfigureCompletionHandler: Hotspot configure completion handler
/// - enterLiveStreamingModeStartingHandler: Enter live streaming mode starting handler
/// - enterLiveStreamingModeCompletedHandler: Enter live streaming mode completed handler
/// - waitingForHotspotOpenHandler: Waiting for hotspot open handler
/// - connectDeviceHotspotStartingHandler: Connect device hotspot starting handler
/// - deviceHotspotConnectCompletionHandler: Device hotspot connect completion handler
/// - rtspAddressReceivedHandler: RTSP address received handler
/// - sessionStartCompletionHandler: Session start completion handler
/// - sessionFinishHandler: Session finish handler
- (void)startRTSPLiveStreamingWithParams:(AIBudsRTSPStreamParams *)params
configureHotspotStartingHandler:
(AIBudsLiveStreamingConfigureHotspotStartingHandler _Nullable)
configureHotspotStartingHandler
hotspotConfigureCompletionHandler:
(AIBudsLiveStreamingHotspotConfigureCompletionHandler _Nullable)
hotspotConfigureCompletionHandler
enterLiveStreamingModeStartingHandler:(AIBudsEnterLiveStreamingModeStartingHandler _Nullable)
enterLiveStreamingModeStartingHandler
enterLiveStreamingModeCompletedHandler:(AIBudsEnterLiveStreamingModeCompletionHandler _Nullable)
enterLiveStreamingModeCompletedHandler
waitingForHotspotOpenHandler:
(AIBudsLiveStreamingStartingToWaitForHotspotOpenHandler _Nullable)
waitingForHotspotOpenHandler
connectDeviceHotspotStartingHandler:
(AIBudsLiveStreamingConnectDeviceHotspotStartingHandler _Nullable)
connectDeviceHotspotStartingHandler
deviceHotspotConnectCompletionHandler:
(AIBudsLiveStreamingDeviceHotspotConnectCompletionHandler _Nullable)
deviceHotspotConnectCompletionHandler
rtspAddressReceivedHandler:(AIBudsLiveStreamingRtspAddressReceivedHandler _Nullable)
rtspAddressReceivedHandler
sessionStartCompletionHandler:
(AIBudsLiveStreamingSessionStartCompletionHandler _Nullable)
sessionStartCompletionHandler
sessionFinishHandler:
(AIBudsLiveStreamingSessionFinishHandler _Nullable)sessionFinishHandler;请参阅 startRTSPLiveStreaming 和 RTSPStreamParams。
RTSP 参数
| 属性 | 含义 |
|---|---|
bitrate | 单位 Mbps;0 表示请求设备默认值。 |
qualityFactor | 0 表示请求无损质量;值越大压缩越强。 |
iFrameInterval | I 帧前的 P/B 帧数量;值越大压缩越强。 |
SDK 当前没有公开与设备无关的非零取值范围。除非目标设备契约提供支持值,否则优先使用 RTSPStreamParams.default。
使用示例
在整个会话期间保留播放器。示例使用所有流程回调,并且只在收到有效 RTSP URL 后开始播放。
- Swift
- Objective-C
let player = LiveStreamingPlayer()
player.addVideoView(to: videoContainerView)
guard let streamingDevice = device as? LiveStreamingAPI,
streamingDevice.supportsRTSPLiveStreaming
else { return }
streamingDevice.startRTSPLiveStreaming(
withParams: .default,
configureHotspotStartingHandler: { showStage("Configuring hotspot") },
hotspotConfigureCompletionHandler: { success, error in
showStage(
success
? "Hotspot configured"
: error?.localizedDescription ?? "Hotspot configuration failed")
},
enterLiveStreamingModeStartingHandler: { showStage("Entering live-stream mode") },
enterLiveStreamingModeCompletedHandler: { success, error in
showStage(
success
? "Live-stream mode entered" : error?.localizedDescription ?? "Mode entry failed")
},
waitingForHotspotOpenHandler: { showStage("Waiting for device hotspot") },
connectDeviceHotspotStartingHandler: { ssid in showStage("Connecting to \(ssid)") },
deviceHotspotConnectCompletionHandler: { success, error in
showStage(
success
? "Device hotspot connected"
: error?.localizedDescription ?? "Hotspot connection failed")
},
rtspAddressReceivedHandler: { address in
guard let url = URL(string: address), url.scheme?.lowercased() == "rtsp" else { return }
let source = VideoSource(url: url, videoType: .normal)
source.isLiveStream = true
player.play(source: source)
},
sessionStartCompletionHandler: { success, error in
setStreamingActive(success)
if let error { show(error) }
},
sessionFinishHandler: { userStopped, error in
player.stop()
setStreamingActive(false)
handleFinish(userStopped: userStopped, error: error)
}
)self.mediaPlayer = [[AIBudsLiveStreamingPlayer alloc] init];
[self.mediaPlayer addVideoViewToView:self.videoContainerView];
id<AIBudsLiveStreamingAPI> streamingDevice = (id<AIBudsLiveStreamingAPI>)self.device;
if (![streamingDevice conformsToProtocol:@protocol(AIBudsLiveStreamingAPI)] ||
!streamingDevice.supportsRTSPLiveStreaming) {
return;
}
__weak typeof(self) weakSelf = self;
[streamingDevice startRTSPLiveStreamingWithParams:[AIBudsRTSPStreamParams defaultParams]
configureHotspotStartingHandler:^{
[weakSelf showStage:@"Configuring hotspot"];
}
hotspotConfigureCompletionHandler:^(BOOL success, NSError *error) {
[weakSelf handleStageResult:success error:error];
}
enterLiveStreamingModeStartingHandler:^{
[weakSelf showStage:@"Entering live-stream mode"];
}
enterLiveStreamingModeCompletedHandler:^(BOOL success, NSError *error) {
[weakSelf handleStageResult:success error:error];
}
waitingForHotspotOpenHandler:^{
[weakSelf showStage:@"Waiting for device hotspot"];
}
connectDeviceHotspotStartingHandler:^(NSString *ssid) {
[weakSelf showStage:[NSString stringWithFormat:@"Connecting to %@", ssid]];
}
deviceHotspotConnectCompletionHandler:^(BOOL success, NSError *error) {
[weakSelf handleStageResult:success error:error];
}
rtspAddressReceivedHandler:^(NSString *address) {
NSURL *url = [NSURL URLWithString:address];
if (![url.scheme.lowercaseString isEqualToString:@"rtsp"])
return;
AIBudsVideoSource *source =
[[AIBudsVideoSource alloc] initWithUrl:url
videoType:AIBudsLiveStreamingVideoTypeNormal];
source.isLiveStream = YES;
[weakSelf.mediaPlayer playWithSource:source];
}
sessionStartCompletionHandler:^(BOOL success, NSError *error) {
[weakSelf setStreamingActive:success];
if (error)
[weakSelf showError:error];
}
sessionFinishHandler:^(BOOL userStopped, NSError *error) {
[weakSelf.mediaPlayer stop];
[weakSelf setStreamingActive:NO];
[weakSelf handleFinishUserStopped:userStopped error:error];
}];错误处理
将热点配置、模式进入、热点连接、会话启动、播放器失败和非用户结束视为独立失败点。中间回调成功不能保证后续阶段或播放成功。
注意事项
- SDK 异步返回 RTSP 地址;不要自行假设并构建设备 URL。
- RTSP 播放要求 iPhone 保持连接设备热点。
- Demo 可以选择通过
LiveStreamer将收到的 RTSP 源转发到 RTMP;这是独立的发布生命周期,并且需要应用提供 RTMP URL。