frame-rate

How to know total number of Frame in a file ( .avi) through Python using open cv module. If possible what all the information (resolution, fps,duration,etc) we can get of a video file through this. With a newer OpenCV version (I use 3.1.0) it works like this: import cv2 cap = cv2.VideoCapture("video.mp4") length = int(cap.get(cv2.CAP_PROP_FRAME_COUNT)) print( length ) And similar for other video properties cv2.CAP_PROP_* berak import cv2 cap = cv2.VideoCapture(fn) if not cap.isOpened(): print "could not open :",fn return length = int(cap.get(cv2.cv.CV_CAP_PROP_FRAME_COUNT)) width = int(cap.get

I want to get frame rate of video, but i don't want to use FFMPEG,JAVACV lib. is that possible to get frame rate of video in android? I read KEY_FRAME_RATE it's says that,"Specifically, MediaExtractor provides an integer value corresponding to the frame rate information of the track if specified and non-zero." but i don't know how to use it? if you know about how to get frame rate from video then answer here. MediaExtractor extractor = new MediaExtractor(); int frameRate = 24; //may be default try { //Adjust data source as per the requirement if file, URI, etc. extractor.setDataSource(...);

I tested with original camera application (video mode) comes with Samsung Galaxy Tab 8.9. The saved front camera video able to achieve 24 fps, 640x480. (By looking at the properties of video file after transfer to Windows machine) However, while I write front Camera code to test. mCamera2.setPreviewCallbackWithBuffer(new PreviewCallback() { public void onPreviewFrame(byte[] data, Camera camera) { // image processing code placed here. } }); The maximum result I can achieve is (without saving video to disk. I merely measure the callback function onPreviewFrame triggered rate) 15 fps 320x240,

I'm using p5js to program an animation with a timer countdown. I set my timer up to be updated each frame within an object that is being animated by the draw() function in sketch. Because of this, setInterval() will not work for what I'm trying to do. I thought I could use the frameRate and a frame counter to decide if a second has passed: this.updateTimer = function(){ this.framecounter++; if(this.framecounter > frameRate()){ this.framecounter = 0; //increment seconds } } Is this reliable? I tested it against an actual timer and it seems to be about 1 second ahead after about 15 seconds. Is

I need to create a 100fps animation that display 3d data from a file that contains 100 frames per second. But the AnimationTimer in javaFx allows me to get 60fps only. How to get over it. Thanks a lot. jewelsea Removing the JavaFX Frame Rate Cap You can remove the 60fps JavaFX frame rate cap by setting a system property, e.g., java -Djavafx.animation.fullspeed=true MyApp Which is an undocumented and unsupported setting . Removing the JavaFX frame rate cap may make your application considerably less efficient in terms of resource usage (e.g. a JavaFX application without a frame rate cap will

What's a good algorithm for calculating frames per second in a game? I want to show it as a number in the corner of the screen. If I just look at how long it took to render the last frame the number changes too fast. Bonus points if your answer updates each frame and doesn't converge differently when the frame rate is increasing vs decreasing. You need a smoothed average, the easiest way is to take the current answer (the time to draw the last frame) and combine it with the previous answer. // eg. float smoothing = 0.9; // larger=more smoothing measurement = (measurement * smoothing) +