fixed various audio issues

project/clip.cpp

@@ -52,7 +52,7 @@ void Clip::init() {
 }
 
 void Clip::reset() {
-	cache_size = cache_A.offset = cache_B.offset = open = pkt_written = cache_A.written = cache_B.written = cache_A.unread = cache_B.unread = reached_end = reset_audio = frame_sample_index = 0;
+    cache_size = cache_A.offset = cache_B.offset = open = pkt_written = cache_A.written = cache_B.written = cache_A.unread = cache_B.unread = reached_end = reset_audio = frame_sample_index = audio_buffer_write = 0;
 	texture_frame = -1;
 	formatCtx = NULL;
 	stream = NULL;

project/clip.h

@@ -89,6 +89,7 @@ struct Clip
 	// audio playback variables
 	SwrContext* swr_ctx;
 	int frame_sample_index;
+    int audio_buffer_write;
 	bool reset_audio;
 };
 

project/effect.cpp

@@ -21,5 +21,5 @@ Effect* Effect::copy() {
     return e;
 }
 
-void Effect::process_gl(int* anchor_x, int* anchor_y) {}
-void Effect::process_audio(uint8_t* samples, int nb_bytes) {}
+void Effect::process_gl(int*, int*) {}
+void Effect::process_audio(uint8_t*, int) {}