Camera: Fix to increase preview FPS while recording with 720p resolution.
Video Thread was holding a lock on g_busy_frame_queue.mut till the current frame was encoded.
Camframe thread was waiting on this lock to add the next buffer to busy queue thus reduding
FPS. Moved the unlock to just after cam_frame_get_video, so that the camframe thread can
unblock immediately after a frame is given to the encoder.
diff --git a/QualcommCameraHardware.cpp b/QualcommCameraHardware.cpp
index a7588a6..1c8575d 100644
--- a/QualcommCameraHardware.cpp
+++ b/QualcommCameraHardware.cpp
@@ -1856,6 +1856,7 @@
// Get the video frame to be encoded
vframe = cam_frame_get_video ();
+ pthread_mutex_unlock(&(g_busy_frame_queue.mut));
LOGV("in video_thread : got video frame ");
if(vframe != NULL) {
@@ -1915,7 +1916,6 @@
} else LOGE("in video_thread get frame returned null");
- pthread_mutex_unlock(&(g_busy_frame_queue.mut));
} // end of while loop