From 3f2803d31d33a2bdd7a056ca9f95e657621a0811 Mon Sep 17 00:00:00 2001
From: lizarge <sasha@ankudinov.org.ua>
Date: Tue, 29 Dec 2015 15:57:49 +0200
Subject: [PATCH 1/2] - add frame update functional

---
 api/iOS/VCSimpleSession.mm | 48 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 48 insertions(+)

diff --git a/api/iOS/VCSimpleSession.mm b/api/iOS/VCSimpleSession.mm
index ef83e2bc..95536daf 100644
--- a/api/iOS/VCSimpleSession.mm
+++ b/api/iOS/VCSimpleSession.mm
@@ -853,6 +853,7 @@ - (void) addEncodersAndPacketizers
 
     
 }
+/*
 - (void) addPixelBufferSource: (UIImage*) image
                      withRect:(CGRect)rect {
     CGImageRef ref = [image CGImage];
@@ -890,7 +891,54 @@ - (void) addPixelBufferSource: (UIImage*) image
     
     free(rawData);
     
+}*/
+
+- (void) addPixelBufferSource: (UIImage*) image
+withRect:(CGRect)rect {
+CGImageRef ref = [image CGImage];
+
+std::shared_ptr<videocore::Apple::PixelBufferSource>     temp_pixelBufferSource = m_pixelBufferSource;
+
+
+m_pixelBufferSource = std::make_shared<videocore::Apple::PixelBufferSource>(CGImageGetWidth(ref),
+CGImageGetHeight(ref),
+'BGRA');
+NSUInteger width = CGImageGetWidth(ref);
+NSUInteger height = CGImageGetHeight(ref);
+CGColorSpaceRef colorSpace = CGColorSpaceCreateDeviceRGB();
+unsigned char *rawData = (unsigned char*) calloc(height * width * 4, sizeof(unsigned char));
+NSUInteger bytesPerPixel = 4;
+NSUInteger bytesPerRow = bytesPerPixel * width;
+NSUInteger bitsPerComponent = 8;
+CGContextRef context = CGBitmapContextCreate(rawData, width, height,
+bitsPerComponent, bytesPerRow, colorSpace,
+kCGImageAlphaPremultipliedFirst | kCGBitmapByteOrder32Little);
+CGColorSpaceRelease(colorSpace);
+
+CGContextDrawImage(context, CGRectMake(0, 0, width, height), ref);
+CGContextRelease(context);
+
+m_pbAspect = std::make_shared<videocore::AspectTransform>(rect.size.width,rect.size.height,videocore::AspectTransform::kAspectFit);
+
+m_pbPosition = std::make_shared<videocore::PositionTransform>(rect.origin.x, rect.origin.y,
+rect.size.width, rect.size.height,
+self.videoSize.width, self.videoSize.height
+);
+m_pixelBufferSource->setOutput(m_pbAspect);
+m_pbAspect->setOutput(m_pbPosition);
+m_pbPosition->setOutput(m_videoMixer);
+m_videoMixer->registerSource(m_pixelBufferSource);
+m_pixelBufferSource->pushPixelBuffer(rawData, width * height * 4);
+
+free(rawData);
+
+
+if(temp_pixelBufferSource){
+m_videoMixer->unregisterSource(temp_pixelBufferSource);
 }
+
+}
+
 - (NSString *) applicationDocumentsDirectory
 {
     NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);

From be9a06fd87bb292d4d05c62e82d3d21f59dd0725 Mon Sep 17 00:00:00 2001
From: User <liptugamichael@gmail.com>
Date: Mon, 18 Apr 2016 12:47:13 +0300
Subject: [PATCH 2/2] Fixed bug in VCSimpleSession

---
 api/iOS/VCSimpleSession.mm | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/api/iOS/VCSimpleSession.mm b/api/iOS/VCSimpleSession.mm
index 95536daf..5ec32b55 100644
--- a/api/iOS/VCSimpleSession.mm
+++ b/api/iOS/VCSimpleSession.mm
@@ -818,9 +818,10 @@ - (void) addEncodersAndPacketizers
                                                                         self.fps,
                                                                         self.bitrate);
         }
-        m_audioMixer->setOutput(m_aacEncoder);
-        m_videoSplit->setOutput(m_h264Encoder);
-
+        if (m_aacEncoder != nullptr && m_h264Encoder != nullptr) {
+            m_audioMixer->setOutput(m_aacEncoder);
+            m_videoSplit->setOutput(m_h264Encoder);
+        }
     }
     {
         m_aacSplit = std::make_shared<videocore::Split>();