Implementing Codacy improvements, removing some unused or pointless code

examples/Example.cpp

@@ -44,9 +44,6 @@ int main(int argc, char* argv[]) {
     using s = std::chrono::seconds;
     using double_ms = std::chrono::duration<double, ms::period>;
 
-    // Track total time
-    const auto total_time = double_ms(0.0);
-
     // FFmpeg Reader performance test
     const auto total_1 = std::chrono::high_resolution_clock::now();
     FFmpegReader r9("/home/jonathan/Videos/sintel_trailer-1080p.mp4");
@@ -64,7 +61,6 @@ int main(int argc, char* argv[]) {
     r9.Close();
 
 
-
     // Timeline Reader performance test
     Timeline tm(r9.info.width, r9.info.height, r9.info.fps, r9.info.sample_rate, r9.info.channels, r9.info.channel_layout);
     Clip *c = new Clip(&r9);

src/Clip.cpp

@@ -354,18 +354,6 @@ std::shared_ptr<Frame> Clip::GetFrame(std::shared_ptr<openshot::Frame> backgroun
 		// Adjust out of bounds frame number
 		frame_number = adjust_frame_number_minimum(frame_number);
 
-		// Adjust has_video and has_audio overrides
-		int enabled_audio = has_audio.GetInt(frame_number);
-		if (enabled_audio == -1 && reader && reader->info.has_audio)
-			enabled_audio = 1;
-		else if (enabled_audio == -1 && reader && !reader->info.has_audio)
-			enabled_audio = 0;
-		int enabled_video = has_video.GetInt(frame_number);
-		if (enabled_video == -1 && reader && reader->info.has_video)
-			enabled_video = 1;
-		else if (enabled_video == -1 && reader && !reader->info.has_video)
-			enabled_video = 0;
-
 		// Is a time map detected
 		int64_t new_frame_number = frame_number;
 		int64_t time_mapped_number = adjust_frame_number_minimum(time.GetLong(frame_number));
@@ -382,19 +370,6 @@ std::shared_ptr<Frame> Clip::GetFrame(std::shared_ptr<openshot::Frame> backgroun
 		// Apply effects to the frame (if any)
 		apply_effects(original_frame);
 
-		// Determine size of image (from Timeline or Reader)
-		int width = 0;
-		int height = 0;
-		if (timeline) {
-			// Use timeline size (if available)
-			width = timeline->preview_width;
-			height = timeline->preview_height;
-		} else {
-			// Fallback to clip size
-			width = reader->info.width;
-			height = reader->info.height;
-		}
-
 		// Apply keyframe / transforms
 		apply_keyframes(original_frame, background_frame->GetImage());
 

src/FFmpegReader.cpp

@@ -1244,7 +1244,6 @@ void FFmpegReader::ProcessVideoPacket(int64_t requested_frame) {
 
 	// Create variables for a RGB Frame (since most videos are not in RGB, we must convert it)
 	AVFrame *pFrameRGB = NULL;
-	int numBytes;
 	uint8_t *buffer = NULL;
 
 	// Allocate an AVFrame structure
@@ -1318,7 +1317,6 @@ void FFmpegReader::ProcessVideoPacket(int64_t requested_frame) {
 	}
 
 	// Determine required buffer size and allocate buffer
-	numBytes = AV_GET_IMAGE_SIZE(PIX_FMT_RGBA, width, height);
 	const int bytes_per_pixel = 4;
 	int buffer_size = width * height * bytes_per_pixel;
 	buffer = new unsigned char[buffer_size]();
@@ -2169,7 +2167,7 @@ void FFmpegReader::CheckWorkingFrames(bool end_of_stream, int64_t requested_fram
 			break;
 
 		// Remove frames which are too old
-		if (f && f->number < (requested_frame - (max_concurrent_frames * 2))) {
+		if (f->number < (requested_frame - (max_concurrent_frames * 2))) {
 			working_cache.Remove(f->number);
 		}