77 lines
1.6 KiB
Go
77 lines
1.6 KiB
Go
// Copyright 2011 <chaishushan@gmail.com>. All rights reserved.
|
|
// Use of this source code is governed by a BSD-style
|
|
// license that can be found in the LICENSE file.
|
|
|
|
package main
|
|
|
|
import (
|
|
"fmt"
|
|
"os"
|
|
|
|
"code.google.com/p/go-opencv/opencv"
|
|
)
|
|
|
|
func main() {
|
|
filename := "../data/???.avi"
|
|
if len(os.Args) == 2 {
|
|
filename = os.Args[1]
|
|
} else {
|
|
fmt.Printf("Usage: go run player.go videoname\n")
|
|
os.Exit(0)
|
|
}
|
|
|
|
cap := opencv.NewFileCapture(filename)
|
|
if cap == nil {
|
|
panic("can not open video")
|
|
}
|
|
defer cap.Release()
|
|
|
|
win := opencv.NewWindow("GoOpenCV: VideoPlayer")
|
|
defer win.Destroy()
|
|
|
|
fps := int(cap.GetProperty(opencv.CV_CAP_PROP_FPS))
|
|
frames := int(cap.GetProperty(opencv.CV_CAP_PROP_FRAME_COUNT))
|
|
stop := false
|
|
|
|
win.SetMouseCallback(func(event, x, y, flags int) {
|
|
if flags&opencv.CV_EVENT_LBUTTONDOWN != 0 {
|
|
stop = !stop
|
|
if stop {
|
|
fmt.Printf("status: stop")
|
|
} else {
|
|
fmt.Printf("status: palying")
|
|
}
|
|
}
|
|
})
|
|
win.CreateTrackbar("Seek", 1, frames, func(pos int) {
|
|
cur_pos := int(cap.GetProperty(opencv.CV_CAP_PROP_POS_FRAMES))
|
|
|
|
if pos != cur_pos {
|
|
cap.SetProperty(opencv.CV_CAP_PROP_POS_FRAMES, float64(pos))
|
|
fmt.Printf("Seek to %d(%d)\n", pos, frames)
|
|
}
|
|
})
|
|
|
|
for {
|
|
if !stop {
|
|
img := cap.QueryFrame()
|
|
if img == nil { break }
|
|
|
|
frame_pos := int(cap.GetProperty(opencv.CV_CAP_PROP_POS_FRAMES))
|
|
if frame_pos >= frames { break }
|
|
win.SetTrackbarPos("Seek", frame_pos)
|
|
|
|
win.ShowImage(img)
|
|
key := opencv.WaitKey(1000/fps)
|
|
if key == 27 { os.Exit(0) }
|
|
} else {
|
|
key := opencv.WaitKey(20)
|
|
if key == 27 { os.Exit(0) }
|
|
}
|
|
}
|
|
|
|
|
|
opencv.WaitKey(0)
|
|
}
|
|
|
|
|