Merge branch 'master' of github.com:limelight-stream/limelight-ios

# By Cameron Gutman
# Via Cameron Gutman
* 'master' of github.com:limelight-stream/limelight-ios:
  Improve touch input support
  Add some WIP touch input support
  Implement working audio support
  Video fully works now

Limelight.xcodeproj/project.pbxproj

@@ -7,6 +7,7 @@
 	objects = {
 
 /* Begin PBXBuildFile section */
+		984C441819F48D1D0061A500 /* StreamView.m in Sources */ = {isa = PBXBuildFile; fileRef = 984C441719F48D1D0061A500 /* StreamView.m */; };
 		98A03B4D19F352EB00861ACA /* liblimelight-common.a in Frameworks */ = {isa = PBXBuildFile; fileRef = 98A03B4A19F3514B00861ACA /* liblimelight-common.a */; };
 		98A03B5019F3598400861ACA /* VideoDecoderRenderer.m in Sources */ = {isa = PBXBuildFile; fileRef = 98A03B4F19F3598400861ACA /* VideoDecoderRenderer.m */; };
 		98A03B5119F35AAC00861ACA /* libcrypto.a in Frameworks */ = {isa = PBXBuildFile; fileRef = FBCC0E9819EF9703009729EB /* libcrypto.a */; };
@@ -77,6 +78,8 @@
 /* End PBXContainerItemProxy section */
 
 /* Begin PBXFileReference section */
+		984C441619F48D1D0061A500 /* StreamView.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = StreamView.h; sourceTree = "<group>"; };
+		984C441719F48D1D0061A500 /* StreamView.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = StreamView.m; sourceTree = "<group>"; };
 		98A03B4519F3514B00861ACA /* limelight-common.xcodeproj */ = {isa = PBXFileReference; lastKnownFileType = "wrapper.pb-project"; name = "limelight-common.xcodeproj"; path = "limelight-common-c/limelight-common.xcodeproj"; sourceTree = "<group>"; };
 		98A03B4E19F3598400861ACA /* VideoDecoderRenderer.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = VideoDecoderRenderer.h; path = Limelight/VideoDecoderRenderer.h; sourceTree = SOURCE_ROOT; };
 		98A03B4F19F3598400861ACA /* VideoDecoderRenderer.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; name = VideoDecoderRenderer.m; path = Limelight/VideoDecoderRenderer.m; sourceTree = SOURCE_ROOT; };
@@ -322,6 +325,8 @@
 				FBCC0E9C19F00659009729EB /* mkcert.c */,
 				FBC8622B19F0BEFB0087327B /* HttpManager.h */,
 				FBC8622C19F0BEFB0087327B /* HttpManager.m */,
+				984C441619F48D1D0061A500 /* StreamView.h */,
+				984C441719F48D1D0061A500 /* StreamView.m */,
 			);
 			path = Limelight;
 			sourceTree = "<group>";
@@ -687,6 +692,7 @@
 				FB290D3A19B2C6E3004C83CF /* StreamFrameViewController.m in Sources */,
 				FB290D0019B2C406004C83CF /* main.m in Sources */,
 				FB290D3919B2C6E3004C83CF /* MainFrameViewController.m in Sources */,
+				984C441819F48D1D0061A500 /* StreamView.m in Sources */,
 				FB290D3719B2C6E3004C83CF /* Connection.m in Sources */,
 				FBCC0E9D19F00659009729EB /* mkcert.c in Sources */,
 				FB290D3819B2C6E3004C83CF /* ConnectionHandler.m in Sources */,

Limelight/Connection.m

@@ -28,10 +28,17 @@ static OpusDecoder *opusDecoder;
 #define PCM_BUFFER_SIZE 1024
 #define OUTPUT_BUS 0
 
-static short* decodedPcmBuffer;
+struct AUDIO_BUFFER_QUEUE_ENTRY {
-static int filledPcmBuffer;
+    struct AUDIO_BUFFER_QUEUE_ENTRY *next;
+    int length;
+    int offset;
+    char data[0];
+};
+
+static short decodedPcmBuffer[512];
+static NSLock *audioLock;
+static struct AUDIO_BUFFER_QUEUE_ENTRY *audioBufferQueue;
 static AudioComponentInstance audioUnit;
-static bool started = false;
 static VideoDecoderRenderer* renderer;
 
 void DrSetup(int width, int height, int fps, void* context, int drFlags)
@@ -81,18 +88,13 @@ void ArInit(void)
     
     opusDecoder = opus_decoder_create(48000, 2, &err);
     
-    decodedPcmBuffer = malloc(PCM_BUFFER_SIZE);
+    audioLock = [[NSLock alloc] init];
 }
 
 void ArRelease(void)
 {
     printf("Release audio\n");
     
-    if (decodedPcmBuffer != NULL) {
-        free(decodedPcmBuffer);
-        decodedPcmBuffer = NULL;
-    }
-    
     if (opusDecoder != NULL) {
         opus_decoder_destroy(opusDecoder);
         opusDecoder = NULL;
@@ -102,6 +104,7 @@ void ArRelease(void)
 void ArStart(void)
 {
     printf("Start audio\n");
+    AudioOutputUnitStart(audioUnit);
 }
 
 void ArStop(void)
@@ -111,17 +114,31 @@ void ArStop(void)
 
 void ArDecodeAndPlaySample(char* sampleData, int sampleLength)
 {
-
+    int decodedLength = opus_decode(opusDecoder, (unsigned char*)sampleData, sampleLength, decodedPcmBuffer, PCM_BUFFER_SIZE / 2, 0);
-    if (!started) {
+    if (decodedLength > 0) {
-        AudioOutputUnitStart(audioUnit);
-        started = true;
-    }
-    filledPcmBuffer = opus_decode(opusDecoder, (unsigned char*)sampleData, sampleLength, decodedPcmBuffer, PCM_BUFFER_SIZE / 2, 0);
-    if (filledPcmBuffer > 0) {
         // Return of opus_decode is samples per channel
-        filledPcmBuffer *= 4;
+        decodedLength *= 4;
         
-        NSLog(@"pcmBuffer: %d", filledPcmBuffer);        
+        struct AUDIO_BUFFER_QUEUE_ENTRY *newEntry = malloc(sizeof(*newEntry) + decodedLength);
+        if (newEntry != NULL) {
+            newEntry->next = NULL;
+            newEntry->length = decodedLength;
+            newEntry->offset = 0;
+            memcpy(newEntry->data, decodedPcmBuffer, decodedLength);
+            
+            [audioLock lock];
+            if (audioBufferQueue == NULL) {
+                audioBufferQueue = newEntry;
+            }
+            else {
+                struct AUDIO_BUFFER_QUEUE_ENTRY *lastEntry = audioBufferQueue;
+                while (lastEntry->next != NULL) {
+                    lastEntry = lastEntry->next;
+                }
+                lastEntry->next = newEntry;
+            }
+            [audioLock unlock];
+        }
     }
 }
 
@@ -193,15 +210,15 @@ void ClDisplayTransientMessage(char* message)
     clCallbacks.displayMessage = ClDisplayMessage;
     clCallbacks.displayTransientMessage = ClDisplayTransientMessage;
     
-    //////// Don't think any of this is used /////////
+    // Configure the audio session for our app
     NSError *audioSessionError = nil;
     AVAudioSession* audioSession = [AVAudioSession sharedInstance];
-    [audioSession setPreferredSampleRate:48000.0 error:&audioSessionError];
     
+    [audioSession setPreferredSampleRate:48000.0 error:&audioSessionError];
     [audioSession setCategory: AVAudioSessionCategoryPlayAndRecord error: &audioSessionError];
     [audioSession setPreferredOutputNumberOfChannels:2 error:&audioSessionError];
+    [audioSession setPreferredIOBufferDuration:0.005 error:&audioSessionError];
     [audioSession setActive: YES error: &audioSessionError];
-    //////////////////////////////////////////////////
     
     OSStatus status;
     
@@ -217,27 +234,26 @@ void ClDisplayTransientMessage(char* message)
     if (status) {
         NSLog(@"Unable to instantiate new AudioComponent: %d", (int32_t)status);
     }
-
     
     AudioStreamBasicDescription audioFormat = {0};
     audioFormat.mSampleRate = 48000;
     audioFormat.mBitsPerChannel = 16;
     audioFormat.mFormatID = kAudioFormatLinearPCM;
-    audioFormat.mFormatFlags = kAudioFormatFlagIsSignedInteger;
+    audioFormat.mFormatFlags = kAudioFormatFlagIsSignedInteger | kLinearPCMFormatFlagIsPacked;
-    audioFormat.mFramesPerPacket = 1;
     audioFormat.mChannelsPerFrame = 2;
-    audioFormat.mBytesPerFrame = 960;
+    audioFormat.mBytesPerFrame = audioFormat.mChannelsPerFrame * (audioFormat.mBitsPerChannel / 8);
-    audioFormat.mBytesPerPacket = 960;
+    audioFormat.mBytesPerPacket = audioFormat.mBytesPerFrame;
+    audioFormat.mFramesPerPacket = audioFormat.mBytesPerPacket / audioFormat.mBytesPerFrame;
     audioFormat.mReserved = 0;
-    
+
     status = AudioUnitSetProperty(audioUnit,
                                   kAudioUnitProperty_StreamFormat,
-                                  kAudioUnitScope_Output,
+                                  kAudioUnitScope_Input,
                                   OUTPUT_BUS,
                                   &audioFormat,
                                   sizeof(audioFormat));
     if (status) {
-        NSLog(@"Unable to set audio unit to output: %d", (int32_t)status);
+        NSLog(@"Unable to set audio unit to input: %d", (int32_t)status);
     }
     
     AURenderCallbackStruct callbackStruct = {0};
@@ -246,7 +262,7 @@ void ClDisplayTransientMessage(char* message)
     
     status = AudioUnitSetProperty(audioUnit,
                                   kAudioUnitProperty_SetRenderCallback,
-                                  kAudioUnitScope_Global,
+                                  kAudioUnitScope_Input,
                                   OUTPUT_BUS,
                                   &callbackStruct,
                                   sizeof(callbackStruct));
@@ -272,15 +288,60 @@ static OSStatus playbackCallback(void *inRefCon,
     // Fill them up as much as you can. Remember to set the size value in each buffer to match how
     // much data is in the buffer.
     
-    NSLog(@"Playback callback");
-    
     for (int i = 0; i < ioData->mNumberBuffers; i++) {
         ioData->mBuffers[i].mNumberChannels = 2;
-        int min = MIN(ioData->mBuffers[i].mDataByteSize, filledPcmBuffer);
+        
-        NSLog(@"Min: %d", min);
+        if (ioData->mBuffers[i].mDataByteSize != 0) {
-        memcpy(ioData->mBuffers[i].mData, decodedPcmBuffer, min);
+            int thisBufferOffset = 0;
-        ioData->mBuffers[i].mDataByteSize = min;
+            
-        filledPcmBuffer -= min;
+        FillBufferAgain:
+            // Make sure there's data to write
+            if (ioData->mBuffers[i].mDataByteSize - thisBufferOffset == 0) {
+                continue;
+            }
+            
+            // Wait for a buffer to be available
+            // FIXME: This needs optimization to avoid busy waiting for buffers
+            struct AUDIO_BUFFER_QUEUE_ENTRY *audioEntry = NULL;
+            while (audioEntry == NULL)
+            {
+                [audioLock lock];
+                if (audioBufferQueue != NULL) {
+                    // Dequeue this entry temporarily
+                    audioEntry = audioBufferQueue;
+                    audioBufferQueue = audioBufferQueue->next;
+                }
+                [audioLock unlock];
+            }
+            
+            // Figure out how much data we can write
+            int min = MIN(ioData->mBuffers[i].mDataByteSize - thisBufferOffset, audioEntry->length);
+            
+            // Copy data to the audio buffer
+            memcpy(&ioData->mBuffers[i].mData[thisBufferOffset], &audioEntry->data[audioEntry->offset], min);
+            thisBufferOffset += min;
+            
+            if (min < audioEntry->length) {
+                // This entry still has unused data
+                audioEntry->length -= min;
+                audioEntry->offset += min;
+                
+                // Requeue the entry
+                [audioLock lock];
+                audioEntry->next = audioBufferQueue;
+                audioBufferQueue = audioEntry;
+                [audioLock unlock];
+            }
+            else {
+                // This entry is fully depleted so free it
+                free(audioEntry);
+                
+                // Try to grab another sample to fill this buffer with
+                goto FillBufferAgain;
+            }
+
+            ioData->mBuffers[i].mDataByteSize = thisBufferOffset;
+        }
     }
     
     return noErr;

Limelight/StreamView.h

@@ -0,0 +1,13 @@
+//
+//  StreamView.h
+//  Limelight
+//
+//  Created by Cameron Gutman on 10/19/14.
+//  Copyright (c) 2014 Limelight Stream. All rights reserved.
+//
+
+#import <UIKit/UIKit.h>
+
+@interface StreamView : UIView
+
+@end

Limelight/StreamView.m

@@ -0,0 +1,59 @@
+//
+//  StreamView.m
+//  Limelight
+//
+//  Created by Cameron Gutman on 10/19/14.
+//  Copyright (c) 2014 Limelight Stream. All rights reserved.
+//
+
+#import "StreamView.h"
+#include <Limelight.h>
+
+@implementation StreamView {
+    CGPoint touchLocation;
+    BOOL touchMoved;
+}
+
+- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {
+    UITouch *touch = [[event allTouches] anyObject];
+    touchLocation = [touch locationInView:self];
+    touchMoved = false;
+    
+    NSLog(@"Touch down");
+}
+
+- (void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event {
+    UITouch *touch = [[event allTouches] anyObject];
+    CGPoint currentLocation = [touch locationInView:self];
+    
+    if (touchLocation.x != currentLocation.x ||
+        touchLocation.y != currentLocation.y)
+    {
+        LiSendMouseMoveEvent(touchLocation.x - currentLocation.x,
+                             touchLocation.y - currentLocation.y);
+        
+        touchMoved = true;
+        touchLocation = currentLocation;
+    }
+}
+
+- (void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event {
+    NSLog(@"Touch up");
+    
+    if (!touchMoved) {
+        NSLog(@"Sending left mouse button press");
+        
+        LiSendMouseButtonEvent(BUTTON_ACTION_PRESS, BUTTON_LEFT);
+        
+        // Wait 100 ms to simulate a real button press
+        usleep(100 * 1000);
+        
+        LiSendMouseButtonEvent(BUTTON_ACTION_RELEASE, BUTTON_LEFT);
+    }
+}
+
+- (void)touchesCancelled:(NSSet *)touches withEvent:(UIEvent *)event {
+}
+
+
+@end

Limelight/VideoDecoderRenderer.h

@@ -14,6 +14,8 @@
 
 - (id)initWithView:(UIView*)view;
 
+- (size_t)updateBufferForRange:(CMBlockBufferRef)existingBuffer data:(unsigned char *)data offset:(int)offset length:(int)nalLength;
+
 - (void)submitDecodeBuffer:(unsigned char *)data length:(int)length;
 
 @end

Limelight/VideoDecoderRenderer.m

@@ -25,7 +25,7 @@
     displayLayer.bounds = view.bounds;
     displayLayer.backgroundColor = [UIColor greenColor].CGColor;
     displayLayer.position = CGPointMake(CGRectGetMidX(view.bounds), CGRectGetMidY(view.bounds));
-    displayLayer.videoGravity = AVLayerVideoGravityResize;
+    displayLayer.videoGravity = AVLayerVideoGravityResizeAspect;
     [view.layer addSublayer:displayLayer];
     
     // We need some parameter sets before we can properly start decoding frames
@@ -36,31 +36,66 @@
     return self;
 }
 
-#define ES_START_PREFIX_SIZE 4
+#define FRAME_START_PREFIX_SIZE 4
+#define NALU_START_PREFIX_SIZE 3
+
+- (size_t)updateBufferForRange:(CMBlockBufferRef)existingBuffer data:(unsigned char *)data offset:(int)offset length:(int)nalLength
+{
+    OSStatus status;
+    size_t oldOffset = CMBlockBufferGetDataLength(existingBuffer);
+    
+    status = CMBlockBufferAppendMemoryBlock(existingBuffer, NULL,
+                                            ((4 + nalLength) - NALU_START_PREFIX_SIZE),
+                                            kCFAllocatorDefault, NULL, 0,
+                                            ((4 + nalLength) - NALU_START_PREFIX_SIZE), 0);
+    if (status != noErr) {
+        NSLog(@"CMBlockBufferAppendMemoryBlock failed: %d", (int)status);
+        return 0;
+    }
+    
+    int dataLength = nalLength - NALU_START_PREFIX_SIZE;
+    const uint8_t lengthBytes[] = {(uint8_t)(dataLength >> 24), (uint8_t)(dataLength >> 16),
+        (uint8_t)(dataLength >> 8), (uint8_t)dataLength};
+    status = CMBlockBufferReplaceDataBytes(lengthBytes, existingBuffer,
+                                           oldOffset, 4);
+    if (status != noErr) {
+        NSLog(@"CMBlockBufferReplaceDataBytes failed: %d", (int)status);
+        return 0;
+    }
+    
+    status = CMBlockBufferReplaceDataBytes(&data[offset+NALU_START_PREFIX_SIZE], existingBuffer,
+                                           oldOffset + 4, dataLength);
+    if (status != noErr) {
+        NSLog(@"CMBlockBufferReplaceDataBytes failed: %d", (int)status);
+        return 0;
+    }
+    
+    return 4 + dataLength;
+}
+
 - (void)submitDecodeBuffer:(unsigned char *)data length:(int)length
 {
-    unsigned char nalType = data[ES_START_PREFIX_SIZE] & 0x1F;
+    unsigned char nalType = data[FRAME_START_PREFIX_SIZE] & 0x1F;
     OSStatus status;
     
     if (formatDesc == NULL && (nalType == 0x7 || nalType == 0x8)) {
         if (waitingForSps && nalType == 0x7) {
             NSLog(@"Got SPS");
-            spsData = [NSData dataWithBytes:&data[ES_START_PREFIX_SIZE] length:length - ES_START_PREFIX_SIZE];
+            spsData = [NSData dataWithBytes:&data[FRAME_START_PREFIX_SIZE] length:length - FRAME_START_PREFIX_SIZE];
             waitingForSps = false;
         }
         // Nvidia's stream has 2 PPS NALUs so we'll wait for both of them
         else if ((waitingForPpsA || waitingForPpsB) && nalType == 0x8) {
             // Read the NALU's PPS index to figure out which PPS this is
-            printf("PPS BYTE: %02x", data[ES_START_PREFIX_SIZE + 1]);
             if (waitingForPpsA) {
                 NSLog(@"Got PPS 1");
-                ppsDataA = [NSData dataWithBytes:&data[ES_START_PREFIX_SIZE] length:length - ES_START_PREFIX_SIZE];
+                ppsDataA = [NSData dataWithBytes:&data[FRAME_START_PREFIX_SIZE] length:length - FRAME_START_PREFIX_SIZE];
                 waitingForPpsA = false;
-                ppsDataAFirstByte = data[ES_START_PREFIX_SIZE + 1];
+                ppsDataAFirstByte = data[FRAME_START_PREFIX_SIZE + 1];
             }
-            else if (data[ES_START_PREFIX_SIZE + 1] != ppsDataAFirstByte) {
+            else if (data[FRAME_START_PREFIX_SIZE + 1] != ppsDataAFirstByte) {
                 NSLog(@"Got PPS 2");
-                ppsDataA = [NSData dataWithBytes:&data[ES_START_PREFIX_SIZE] length:length - ES_START_PREFIX_SIZE];
+                ppsDataA = [NSData dataWithBytes:&data[FRAME_START_PREFIX_SIZE] length:length - FRAME_START_PREFIX_SIZE];
                 waitingForPpsB = false;
             }
         }
@@ -100,29 +135,39 @@
     
     // Now we're decoding actual frame data here
     CMBlockBufferRef blockBuffer;
-    status = CMBlockBufferCreateWithMemoryBlock(NULL, data, length, kCFAllocatorNull, NULL, 0, length, 0, &blockBuffer);
+    
+    status = CMBlockBufferCreateEmpty(NULL, 0, 0, &blockBuffer);
     if (status != noErr) {
-        NSLog(@"CMBlockBufferCreateWithMemoryBlock failed: %d", (int)status);
+        NSLog(@"CMBlockBufferCreateEmpty failed: %d", (int)status);
         return;
     }
+
+    int lastOffset = -1;
+    for (int i = 0; i < length - FRAME_START_PREFIX_SIZE; i++) {
+        // Search for a NALU
+        if (data[i] == 0 && data[i+1] == 0 && data[i+2] == 1) {
+            // It's the start of a new NALU
+            if (lastOffset != -1) {
+                // We've seen a start before this so enqueue that NALU
+                [self updateBufferForRange:blockBuffer data:data offset:lastOffset length:i - lastOffset];
+            }
+            
+            lastOffset = i;
+        }
+    }
     
-    // Compute the new length prefix to replace the 00 00 00 01
+    if (lastOffset != -1) {
-    int dataLength = length - ES_START_PREFIX_SIZE;
+        // Enqueue the remaining data
-    const uint8_t lengthBytes[] = {(uint8_t)(dataLength >> 24), (uint8_t)(dataLength >> 16),
+        [self updateBufferForRange:blockBuffer data:data offset:lastOffset length:length - lastOffset];
-        (uint8_t)(dataLength >> 8), (uint8_t)dataLength};
-    status = CMBlockBufferReplaceDataBytes(lengthBytes, blockBuffer, 0, 4);
-    if (status != noErr) {
-        NSLog(@"CMBlockBufferReplaceDataBytes failed: %d", (int)status);
-        return;
     }
     
     CMSampleBufferRef sampleBuffer;
-    const size_t sampleSizeArray[] = {length};
     
     status = CMSampleBufferCreate(kCFAllocatorDefault,
-                                  blockBuffer, true, NULL,
+                                  blockBuffer,
+                                  true, NULL,
                                   NULL, formatDesc, 1, 0,
-                                  NULL, 1, sampleSizeArray,
+                                  NULL, 0, NULL,
                                   &sampleBuffer);
     if (status != noErr) {
         NSLog(@"CMSampleBufferCreate failed: %d", (int)status);

MainFrame-iPad.storyboard

@@ -1,7 +1,6 @@
 <?xml version="1.0" encoding="UTF-8" standalone="no"?>
-<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="6245" systemVersion="14A386a" targetRuntime="iOS.CocoaTouch.iPad" propertyAccessControl="none" useAutolayout="YES" initialViewController="wb7-af-jn8">
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="6245" systemVersion="14A389" targetRuntime="iOS.CocoaTouch.iPad" propertyAccessControl="none" useAutolayout="YES" initialViewController="wb7-af-jn8">
     <dependencies>
-        <deployment defaultVersion="1808" identifier="iOS"/>
         <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="6238"/>
     </dependencies>
     <scenes>
@@ -73,7 +72,7 @@
                         <viewControllerLayoutGuide type="top" id="NG3-N1-D4k"/>
                         <viewControllerLayoutGuide type="bottom" id="3MH-n6-BSR"/>
                     </layoutGuides>
-                    <view key="view" contentMode="scaleToFill" id="VPm-Ae-rc4" userLabel="RenderView">
+                    <view key="view" contentMode="scaleToFill" id="VPm-Ae-rc4" userLabel="RenderView" customClass="StreamView">
                         <rect key="frame" x="0.0" y="0.0" width="1024" height="768"/>
                         <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
                         <color key="backgroundColor" white="0.33333333333333331" alpha="1" colorSpace="calibratedWhite"/>

MainFrame-iPhone.storyboard

@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8" standalone="no"?>
-<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="6245" systemVersion="14A386a" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" initialViewController="dgh-JZ-Q7z">
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="6245" systemVersion="14A389" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" initialViewController="dgh-JZ-Q7z">
     <dependencies>
-        <deployment defaultVersion="1808" identifier="iOS"/>
+        <deployment defaultVersion="2048" identifier="iOS"/>
         <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="6238"/>
     </dependencies>
     <scenes>
@@ -88,7 +88,7 @@
                         <viewControllerLayoutGuide type="top" id="DRq-YB-9Rh"/>
                         <viewControllerLayoutGuide type="bottom" id="KH1-hM-RYW"/>
                     </layoutGuides>
-                    <view key="view" contentMode="scaleToFill" id="eir-e9-IPE">
+                    <view key="view" contentMode="scaleToFill" id="eir-e9-IPE" customClass="StreamView">
                         <rect key="frame" x="0.0" y="0.0" width="320" height="568"/>
                         <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
                         <color key="backgroundColor" white="0.33333333333333331" alpha="1" colorSpace="calibratedWhite"/>