1 files changed, 120 insertions, 0 deletions
diff --git a/src/FifoVideoFrames.cpp b/src/FifoVideoFrames.cpp
new file mode 100644
index 0000000..29975dc
--- /dev/null
+++ b/src/FifoVideoFrames.cpp
@@ -0,0 +1,120 @@
+#include "FifoVideoFrames.h"
+
+FifoVideoFrames::FifoVideoFrames(int s, gavl_video_format_t * f) {
+	size = s  ;  
+	start = 0 ;
+	end = 0 ; 
+	count = 0;
+	format = new gavl_video_format_t;
+	gavl_video_format_copy(format, f);
+	fifoPtr = new gavl_video_frame_t * [size] ;
+	for(int i=0; i < size; i++) {
+		fifoPtr[i] = gavl_video_frame_create( format );
+	}
+	pthread_mutex_init (&mut, 0);
+}
+
+FifoVideoFrames::~FifoVideoFrames() {
+	//printf("deleting fifo \n");
+	for(int i=0; i < size; i++) {
+		 gavl_video_frame_destroy( fifoPtr[i] );
+	}
+	delete format;
+	delete[] fifoPtr;
+	pthread_mutex_destroy (&mut);
+	//printf("deleted fifo \n");
+}
+
+// empty the fifo of any content
+void FifoVideoFrames::Flush() {
+	pthread_mutex_lock (&mut);
+	start = 0 ; 
+	end = 0 ; 
+	count = 0;
+	//printf("FifoVideoFrames::flushed size=%d\n", count);
+	pthread_mutex_unlock (&mut);
+}
+
+// push an element onto the FifoVideoFrames 
+bool FifoVideoFrames::Append(  gavl_video_frame_t * source) {
+	bool ret = false;
+	//Dump("Appending a frame ");
+	pthread_mutex_lock (&mut);
+	if ( count < size  ) {  // if there is room for one more
+		gavl_video_frame_copy(format, fifoPtr[end],  source) ;
+		fifoPtr[end]->timestamp = source->timestamp;
+		fifoPtr[end]->duration = source->duration;
+		if (++end >= size)
+			end = 0;
+		count++;
+		ret = true;
+	} // no room in fifo, return false
+	pthread_mutex_unlock (&mut);
+	//Dump("Appended a frame ");
+	return ret;
+}
+// remove an element off the front FifoVideoFrames
+bool FifoVideoFrames::Get( ) {
+	bool ret = false;
+	pthread_mutex_lock (&mut);
+	if ( count > 0 ) {  // if there any items in the fifo
+		if ( ++start >= size )
+			start = 0;
+		count--;
+		ret = true;
+	}
+	pthread_mutex_unlock (&mut);
+	//Dump("Got a frame ");
+	return ret;
+}
+
+// get an element off the FifoVideoFrames
+bool FifoVideoFrames::Get( gavl_video_frame_t * dest) {
+	bool ret = false;
+	//Dump("Getting a frame ");
+	pthread_mutex_lock (&mut);
+	if ( count > 0 ) {  // if there any items in the fifo
+		gavl_video_frame_copy(format, dest, fifoPtr[start]) ;
+		dest->timestamp = fifoPtr[start]->timestamp;
+		dest->duration = fifoPtr[start]->duration;
+		if ( ++start >= size )
+			start = 0;
+		count--;
+		ret = true;
+	}
+	pthread_mutex_unlock (&mut);
+	//Dump("Got a frame ");
+	return ret;
+}
+/*
+void FifoVideoFrames::Dump( char * c) {
+	int i,j = 0;
+	pthread_mutex_lock (&mut);
+	printf("%s -----------------------\n", c);
+	for( i=0;i<size;i++) {
+		//j=start+i;
+		//if (j >= size)
+		//	j = j -size;
+		j=i;
+		if ( j == start)
+			textcolor(BRIGHT, GREEN, BLACK);
+		if (j == end)
+			textcolor(BRIGHT, RED, BLACK);
+		if (j == end && j == start)
+			textcolor(BRIGHT, YELLOW, BLACK);
+		printf("[%d]=%ld ", j, fifoPtr[j]->timestamp);
+		textcolor(RESET, BLACK, WHITE);
+	}
+	printf("\n");
+	printf("start=%02d, end=%02d, count=%02d\n", start,end,count);
+	printf("-----------------------\n");
+	pthread_mutex_unlock (&mut);
+}
+*/
+bool FifoVideoFrames::FreeSpace() { bool ret; pthread_mutex_lock(&mut); ret = (count < size);pthread_mutex_unlock (&mut);  return ret;}
+bool FifoVideoFrames::isEmpty() { bool c; pthread_mutex_lock(&mut); c = (count == 0) ; pthread_mutex_unlock (&mut); return c; }
+bool FifoVideoFrames::isFull()  { bool c; pthread_mutex_lock(&mut); c = (count == size ); pthread_mutex_unlock (&mut); return c; } 
+gavl_video_format_t * FifoVideoFrames::getFormat() { return format; };
+float FifoVideoFrames::getSizePercentage() { float ret; pthread_mutex_lock(&mut);ret = count / (float) size; pthread_mutex_unlock (&mut); return ret;};
+int FifoVideoFrames::getSize() { int ret; pthread_mutex_lock(&mut);ret = count; pthread_mutex_unlock (&mut); return ret;};
+