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Update ffmpeg command to decrease latency 

* Add options to remove cache and make video processing in real-time
* Add explanation to how download weights
This commit is contained in:
Mikael Manukyan 2020-03-16 15:30:21 -07:00 committed by Ron Evans
parent e80a701df5
commit 5541dcde4d
1 changed files with 4 additions and 0 deletions
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4
examples/tello_facetracker.go
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@ -9,6 +9,9 @@ and then open a window using OpenCV showing the streaming video.
How to run
go run examples/tello_facetracker.go ~/Downloads/res10_300x300_ssd_iter_140000.caffemodel ~/Development/opencv/samples/dnn/face_detector/deploy.prototxt
You can find download the weight via https://github.com/opencv/opencv_3rdparty/raw/dnn_samples_face_detector_20170830/res10_300x300_ssd_iter_140000.caffemodel
And you can find protofile in OpenCV samples directory
*/
package main
@ -46,6 +49,7 @@ const (
var (
// ffmpeg command to decode video stream from drone
ffmpeg = exec.Command("ffmpeg", "-hwaccel", "auto", "-hwaccel_device", "opencl", "-i", "pipe:0",
"-nostats", "-flags", "low_delay", "-probesize", "32", "-fflags", "nobuffer+fastseek+flush_packets", "-analyzeduration", "0", "-af", "aresample=async=1:min_comp=0.1:first_pts=0",
"-pix_fmt", "bgr24", "-s", strconv.Itoa(frameX)+"x"+strconv.Itoa(frameY), "-f", "rawvideo", "pipe:1")
ffmpegIn, _ = ffmpeg.StdinPipe()
ffmpegOut, _ = ffmpeg.StdoutPipe()