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Revision 33445 : Deplacement de inc-theme-head à la suite de habillage.css et ...
1er décembre 2009, par shnoulle@… — LogDeplacement de inc-theme-head à la suite de habillage.css et impression.css pour surcharge
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Audio & Video not synchronized properly if i merged more videos in mp4parser
1er octobre 2013, par maniyaI have used mp4parser for merging video with dynamic pause and record video capture for max 6 second recording. In preview its working fine when recorded video with minimum pause/record, If i tried with more than 3 pause/record mean the last video file not get merged properly with audio.At the start of the video the sync is ok but at the end the video hanged and audio playing in screen for the remaining file duration about 1sec.
My Recording manager
public class RecordingManager implements Camera.ErrorCallback, MediaRecorder.OnErrorListener, MediaRecorder.OnInfoListener {
private static final String TAG = RecordingManager.class.getSimpleName();
private static final int FOCUS_AREA_RADIUS = 32;
private static final int FOCUS_MAX_VALUE = 1000;
private static final int FOCUS_MIN_VALUE = -1000;
private static final long MINIMUM_RECORDING_TIME = 2000;
private static final int MAXIMUM_RECORDING_TIME = 70 * 1000;
private static final long LOW_STORAGE_THRESHOLD = 5 * 1024 * 1024;
private static final long RECORDING_FILE_LIMIT = 100 * 1024 * 1024;
private boolean paused = true;
private MediaRecorder mediaRecorder = null;
private boolean recording = false;
private FrameLayout previewFrame = null;
private boolean mPreviewing = false;
// private TextureView mTextureView = null;
// private SurfaceTexture mSurfaceTexture = null;
// private boolean mSurfaceTextureReady = false;
//
private SurfaceView surfaceView = null;
private SurfaceHolder surfaceHolder = null;
private boolean surfaceViewReady = false;
private Camera camera = null;
private Camera.Parameters cameraParameters = null;
private CamcorderProfile camcorderProfile = null;
private int mOrientation = -1;
private OrientationEventListener mOrientationEventListener = null;
private long mStartRecordingTime;
private int mVideoWidth;
private int mVideoHeight;
private long mStorageSpace;
private Handler mHandler = new Handler();
// private Runnable mUpdateRecordingTimeTask = new Runnable() {
// @Override
// public void run() {
// long recordingTime = System.currentTimeMillis() - mStartRecordingTime;
// Log.d(TAG, String.format("Recording time:%d", recordingTime));
// mHandler.postDelayed(this, CLIP_GRAPH_UPDATE_INTERVAL);
// }
// };
private Runnable mStopRecordingTask = new Runnable() {
@Override
public void run() {
stopRecording();
}
};
private static RecordingManager mInstance = null;
private Activity currentActivity = null;
private String destinationFilepath = "";
private String snapshotFilepath = "";
public static RecordingManager getInstance(Activity activity, FrameLayout previewFrame) {
if (mInstance == null || mInstance.currentActivity != activity) {
mInstance = new RecordingManager(activity, previewFrame);
}
return mInstance;
}
private RecordingManager(Activity activity, FrameLayout previewFrame) {
currentActivity = activity;
this.previewFrame = previewFrame;
}
public int getVideoWidth() {
return this.mVideoWidth;
}
public int getVideoHeight() {
return this.mVideoHeight;
}
public void setDestinationFilepath(String filepath) {
this.destinationFilepath = filepath;
}
public String getDestinationFilepath() {
return this.destinationFilepath;
}
public void setSnapshotFilepath(String filepath) {
this.snapshotFilepath = filepath;
}
public String getSnapshotFilepath() {
return this.snapshotFilepath;
}
public void init(String videoPath, String snapshotPath) {
Log.v(TAG, "init.");
setDestinationFilepath(videoPath);
setSnapshotFilepath(snapshotPath);
if (!Utils.isExternalStorageAvailable()) {
showStorageErrorAndFinish();
return;
}
openCamera();
if (camera == null) {
showCameraErrorAndFinish();
return;
}
public void onResume() {
Log.v(TAG, "onResume.");
paused = false;
// Open the camera
if (camera == null) {
openCamera();
if (camera == null) {
showCameraErrorAndFinish();
return;
}
}
// Initialize the surface texture or surface view
// if (useTexture() && mTextureView == null) {
// initTextureView();
// mTextureView.setVisibility(View.VISIBLE);
// } else if (!useTexture() && mSurfaceView == null) {
initSurfaceView();
surfaceView.setVisibility(View.VISIBLE);
// }
// Start the preview
if (!mPreviewing) {
startPreview();
}
}
private void openCamera() {
Log.v(TAG, "openCamera");
try {
camera = Camera.open();
camera.setErrorCallback(this);
camera.setDisplayOrientation(90); // Since we only support portrait mode
cameraParameters = camera.getParameters();
} catch (RuntimeException e) {
e.printStackTrace();
camera = null;
}
}
private void closeCamera() {
Log.v(TAG, "closeCamera");
if (camera == null) {
Log.d(TAG, "Already stopped.");
return;
}
camera.setErrorCallback(null);
if (mPreviewing) {
stopPreview();
}
camera.release();
camera = null;
}
private void initSurfaceView() {
surfaceView = new SurfaceView(currentActivity);
surfaceView.getHolder().addCallback(new SurfaceViewCallback());
surfaceView.setVisibility(View.GONE);
FrameLayout.LayoutParams params = new LayoutParams(
LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT, Gravity.CENTER);
surfaceView.setLayoutParams(params);
Log.d(TAG, "add surface view to preview frame");
previewFrame.addView(surfaceView);
}
private void releaseSurfaceView() {
if (surfaceView != null) {
previewFrame.removeAllViews();
surfaceView = null;
surfaceHolder = null;
surfaceViewReady = false;
}
}
private void startPreview() {
// if ((useTexture() && !mSurfaceTextureReady) || (!useTexture() && !mSurfaceViewReady)) {
// return;
// }
Log.v(TAG, "startPreview.");
if (mPreviewing) {
stopPreview();
}
setCameraParameters();
resizePreview();
try {
// if (useTexture()) {
// mCamera.setPreviewTexture(mSurfaceTexture);
// } else {
camera.setPreviewDisplay(surfaceHolder);
// }
camera.startPreview();
mPreviewing = true;
} catch (Exception e) {
closeCamera();
e.printStackTrace();
Log.e(TAG, "startPreview failed.");
}
}
private void stopPreview() {
Log.v(TAG, "stopPreview");
if (camera != null) {
camera.stopPreview();
mPreviewing = false;
}
}
public void onPause() {
paused = true;
if (recording) {
stopRecording();
}
closeCamera();
// if (useTexture()) {
// releaseSurfaceTexture();
// } else {
releaseSurfaceView();
// }
}
private void setCameraParameters() {
if (CamcorderProfile.hasProfile(CamcorderProfile.QUALITY_720P)) {
camcorderProfile = CamcorderProfile.get(CamcorderProfile.QUALITY_720P);
} else if (CamcorderProfile.hasProfile(CamcorderProfile.QUALITY_480P)) {
camcorderProfile = CamcorderProfile.get(CamcorderProfile.QUALITY_480P);
} else {
camcorderProfile = CamcorderProfile.get(CamcorderProfile.QUALITY_HIGH);
}
mVideoWidth = camcorderProfile.videoFrameWidth;
mVideoHeight = camcorderProfile.videoFrameHeight;
camcorderProfile.fileFormat = MediaRecorder.OutputFormat.MPEG_4;
camcorderProfile.videoFrameRate = 30;
Log.v(TAG, "mVideoWidth=" + mVideoWidth + " mVideoHeight=" + mVideoHeight);
cameraParameters.setPreviewSize(mVideoWidth, mVideoHeight);
if (cameraParameters.getSupportedWhiteBalance().contains(Camera.Parameters.WHITE_BALANCE_AUTO)) {
cameraParameters.setWhiteBalance(Camera.Parameters.WHITE_BALANCE_AUTO);
}
if (cameraParameters.getSupportedFocusModes().contains(Camera.Parameters.FOCUS_MODE_CONTINUOUS_VIDEO)) {
cameraParameters.setFocusMode(Camera.Parameters.FOCUS_MODE_CONTINUOUS_VIDEO);
}
cameraParameters.setRecordingHint(true);
cameraParameters.set("cam_mode", 1);
camera.setParameters(cameraParameters);
cameraParameters = camera.getParameters();
camera.setDisplayOrientation(90);
android.hardware.Camera.CameraInfo info = new android.hardware.Camera.CameraInfo();
Log.d(TAG, info.orientation + " degree");
}
private void resizePreview() {
Log.d(TAG, String.format("Video size:%d|%d", mVideoWidth, mVideoHeight));
Point optimizedSize = getOptimizedPreviewSize(mVideoWidth, mVideoHeight);
Log.d(TAG, String.format("Optimized size:%d|%d", optimizedSize.x, optimizedSize.y));
ViewGroup.LayoutParams params = (ViewGroup.LayoutParams) previewFrame.getLayoutParams();
params.width = optimizedSize.x;
params.height = optimizedSize.y;
previewFrame.setLayoutParams(params);
}
public void setOrientation(int ori) {
this.mOrientation = ori;
}
public void setOrientationEventListener(OrientationEventListener listener) {
this.mOrientationEventListener = listener;
}
public Camera getCamera() {
return camera;
}
@SuppressWarnings("serial")
public void setFocusArea(float x, float y) {
if (camera != null) {
int viewWidth = surfaceView.getWidth();
int viewHeight = surfaceView.getHeight();
int focusCenterX = FOCUS_MAX_VALUE - (int) (x / viewWidth * (FOCUS_MAX_VALUE - FOCUS_MIN_VALUE));
int focusCenterY = FOCUS_MIN_VALUE + (int) (y / viewHeight * (FOCUS_MAX_VALUE - FOCUS_MIN_VALUE));
final int left = focusCenterY - FOCUS_AREA_RADIUS < FOCUS_MIN_VALUE ? FOCUS_MIN_VALUE : focusCenterY - FOCUS_AREA_RADIUS;
final int top = focusCenterX - FOCUS_AREA_RADIUS < FOCUS_MIN_VALUE ? FOCUS_MIN_VALUE : focusCenterX - FOCUS_AREA_RADIUS;
final int right = focusCenterY + FOCUS_AREA_RADIUS > FOCUS_MAX_VALUE ? FOCUS_MAX_VALUE : focusCenterY + FOCUS_AREA_RADIUS;
final int bottom = focusCenterX + FOCUS_AREA_RADIUS > FOCUS_MAX_VALUE ? FOCUS_MAX_VALUE : focusCenterX + FOCUS_AREA_RADIUS;
Camera.Parameters params = camera.getParameters();
params.setFocusAreas(new ArrayList() {
{
add(new Camera.Area(new Rect(left, top, right, bottom), 1000));
}
});
camera.setParameters(params);
camera.autoFocus(new AutoFocusCallback() {
@Override
public void onAutoFocus(boolean success, Camera camera) {
Log.d(TAG, "onAutoFocus");
}
});
}
}
public void startRecording(String destinationFilepath) {
if (!recording) {
updateStorageSpace();
setDestinationFilepath(destinationFilepath);
if (mStorageSpace <= LOW_STORAGE_THRESHOLD) {
Log.v(TAG, "Storage issue, ignore the start request");
Toast.makeText(currentActivity, "Storage issue, ignore the recording request", Toast.LENGTH_LONG).show();
return;
}
if (!prepareMediaRecorder()) {
Toast.makeText(currentActivity, "prepareMediaRecorder failed.", Toast.LENGTH_LONG).show();
return;
}
Log.d(TAG, "Successfully prepare media recorder.");
try {
mediaRecorder.start();
} catch (RuntimeException e) {
Log.e(TAG, "MediaRecorder start failed.");
releaseMediaRecorder();
return;
}
mStartRecordingTime = System.currentTimeMillis();
if (mOrientationEventListener != null) {
mOrientationEventListener.disable();
}
recording = true;
}
}
public void stopRecording() {
if (recording) {
if (!paused) {
// Capture at least 1 second video
long currentTime = System.currentTimeMillis();
if (currentTime - mStartRecordingTime < MINIMUM_RECORDING_TIME) {
mHandler.postDelayed(mStopRecordingTask, MINIMUM_RECORDING_TIME - (currentTime - mStartRecordingTime));
return;
}
}
if (mOrientationEventListener != null) {
mOrientationEventListener.enable();
}
// mHandler.removeCallbacks(mUpdateRecordingTimeTask);
try {
mediaRecorder.setOnErrorListener(null);
mediaRecorder.setOnInfoListener(null);
mediaRecorder.stop(); // stop the recording
Toast.makeText(currentActivity, "Video file saved.", Toast.LENGTH_LONG).show();
long stopRecordingTime = System.currentTimeMillis();
Log.d(TAG, String.format("stopRecording. file:%s duration:%d", destinationFilepath, stopRecordingTime - mStartRecordingTime));
// Calculate the duration of video
MediaMetadataRetriever mmr = new MediaMetadataRetriever();
mmr.setDataSource(this.destinationFilepath);
String _length = mmr.extractMetadata(MediaMetadataRetriever.METADATA_KEY_DURATION);
if (_length != null) {
Log.d(TAG, String.format("clip duration:%d", Long.parseLong(_length)));
}
// Taking the snapshot of video
Bitmap snapshot = ThumbnailUtils.createVideoThumbnail(this.destinationFilepath, Thumbnails.MICRO_KIND);
try {
FileOutputStream out = new FileOutputStream(this.snapshotFilepath);
snapshot.compress(Bitmap.CompressFormat.JPEG, 70, out);
out.close();
} catch (Exception e) {
e.printStackTrace();
}
// mActivity.showPlayButton();
} catch (RuntimeException e) {
e.printStackTrace();
Log.e(TAG, e.getMessage());
// if no valid audio/video data has been received when stop() is
// called
} finally {
//
releaseMediaRecorder(); // release the MediaRecorder object
if (!paused) {
cameraParameters = camera.getParameters();
}
recording = false;
}
}
}
public void setRecorderOrientation(int orientation) {
// For back camera only
if (orientation != -1) {
Log.d(TAG, "set orientationHint:" + (orientation + 135) % 360 / 90 * 90);
mediaRecorder.setOrientationHint((orientation + 135) % 360 / 90 * 90);
}else {
Log.d(TAG, "not set orientationHint to mediaRecorder");
}
}
private boolean prepareMediaRecorder() {
mediaRecorder = new MediaRecorder();
camera.unlock();
mediaRecorder.setCamera(camera);
mediaRecorder.setAudioSource(MediaRecorder.AudioSource.CAMCORDER);
mediaRecorder.setVideoSource(MediaRecorder.VideoSource.CAMERA);
mediaRecorder.setProfile(camcorderProfile);
mediaRecorder.setMaxDuration(MAXIMUM_RECORDING_TIME);
mediaRecorder.setOutputFile(this.destinationFilepath);
try {
mediaRecorder.setMaxFileSize(Math.min(RECORDING_FILE_LIMIT, mStorageSpace - LOW_STORAGE_THRESHOLD));
} catch (RuntimeException exception) {
}
setRecorderOrientation(mOrientation);
if (!useTexture()) {
mediaRecorder.setPreviewDisplay(surfaceHolder.getSurface());
}
try {
mediaRecorder.prepare();
} catch (IllegalStateException e) {
releaseMediaRecorder();
return false;
} catch (IOException e) {
releaseMediaRecorder();
return false;
}
mediaRecorder.setOnErrorListener(this);
mediaRecorder.setOnInfoListener(this);
return true;
}
private void releaseMediaRecorder() {
if (mediaRecorder != null) {
mediaRecorder.reset(); // clear recorder configuration
mediaRecorder.release(); // release the recorder object
mediaRecorder = null;
camera.lock(); // lock camera for later use
}
}
private Point getOptimizedPreviewSize(int videoWidth, int videoHeight) {
Display display = currentActivity.getWindowManager().getDefaultDisplay();
Point size = new Point();
display.getSize(size);
Point optimizedSize = new Point();
optimizedSize.x = size.x;
optimizedSize.y = (int) ((float) videoWidth / (float) videoHeight * size.x);
return optimizedSize;
}
private void showCameraErrorAndFinish() {
DialogInterface.OnClickListener buttonListener = new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
currentActivity.finish();
}
};
new AlertDialog.Builder(currentActivity).setCancelable(false)
.setTitle("Camera error")
.setMessage("Cannot connect to the camera.")
.setNeutralButton("OK", buttonListener)
.show();
}
private void showStorageErrorAndFinish() {
DialogInterface.OnClickListener buttonListener = new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
currentActivity.finish();
}
};
new AlertDialog.Builder(currentActivity).setCancelable(false)
.setTitle("Storage error")
.setMessage("Cannot read external storage.")
.setNeutralButton("OK", buttonListener)
.show();
}
private void updateStorageSpace() {
mStorageSpace = getAvailableSpace();
Log.v(TAG, "updateStorageSpace mStorageSpace=" + mStorageSpace);
}
private long getAvailableSpace() {
String state = Environment.getExternalStorageState();
Log.d(TAG, "External storage state=" + state);
if (Environment.MEDIA_CHECKING.equals(state)) {
return -1;
}
if (!Environment.MEDIA_MOUNTED.equals(state)) {
return -1;
}
File directory = currentActivity.getExternalFilesDir("vine");
directory.mkdirs();
if (!directory.isDirectory() || !directory.canWrite()) {
return -1;
}
try {
StatFs stat = new StatFs(directory.getAbsolutePath());
return stat.getAvailableBlocks() * (long) stat.getBlockSize();
} catch (Exception e) {
Log.i(TAG, "Fail to access external storage", e);
}
return -1;
}
private boolean useTexture() {
return false;
// return Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1;
}
private class SurfaceViewCallback implements SurfaceHolder.Callback {
@Override
public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) {
Log.v(TAG, "surfaceChanged. width=" + width + ". height=" + height);
}
@Override
public void surfaceCreated(SurfaceHolder holder) {
Log.v(TAG, "surfaceCreated");
surfaceViewReady = true;
surfaceHolder = holder;
startPreview();
}
@Override
public void surfaceDestroyed(SurfaceHolder holder) {
Log.d(TAG, "surfaceDestroyed");
surfaceViewReady = false;
}
}
@Override
public void onError(int error, Camera camera) {
Log.e(TAG, "Camera onError. what=" + error + ".");
if (error == Camera.CAMERA_ERROR_SERVER_DIED) {
} else if (error == Camera.CAMERA_ERROR_UNKNOWN) {
}
}
@Override
public void onInfo(MediaRecorder mr, int what, int extra) {
if (what == MediaRecorder.MEDIA_RECORDER_INFO_MAX_DURATION_REACHED) {
stopRecording();
} else if (what == MediaRecorder.MEDIA_RECORDER_INFO_MAX_FILESIZE_REACHED) {
stopRecording();
Toast.makeText(currentActivity, "Size limit reached", Toast.LENGTH_LONG).show();
}
}
@Override
public void onError(MediaRecorder mr, int what, int extra) {
Log.e(TAG, "MediaRecorder onError. what=" + what + ". extra=" + extra);
if (what == MediaRecorder.MEDIA_RECORDER_ERROR_UNKNOWN) {
stopRecording();
}
}
}VideoUtils
public class VideoUtils {
private static final String TAG = VideoUtils.class.getSimpleName();
static double[] matrix = new double[] { 0.0, 1.0, 0.0, -1.0, 0.0, 0.0, 0.0,
0.0, 1.0 };
public static boolean MergeFiles(String speratedDirPath,
String targetFileName) {
File videoSourceDirFile = new File(speratedDirPath);
String[] videoList = videoSourceDirFile.list();
List<track> videoTracks = new LinkedList<track>();
List<track> audioTracks = new LinkedList<track>();
for (String file : videoList) {
Log.d(TAG, "source files" + speratedDirPath
+ File.separator + file);
try {
FileChannel fc = new FileInputStream(speratedDirPath
+ File.separator + file).getChannel();
Movie movie = MovieCreator.build(fc);
for (Track t : movie.getTracks()) {
if (t.getHandler().equals("soun")) {
audioTracks.add(t);
}
if (t.getHandler().equals("vide")) {
videoTracks.add(t);
}
}
} catch (FileNotFoundException e) {
e.printStackTrace();
return false;
} catch (IOException e) {
e.printStackTrace();
return false;
}
}
Movie result = new Movie();
try {
if (audioTracks.size() > 0) {
result.addTrack(new AppendTrack(audioTracks
.toArray(new Track[audioTracks.size()])));
}
if (videoTracks.size() > 0) {
result.addTrack(new AppendTrack(videoTracks
.toArray(new Track[videoTracks.size()])));
}
IsoFile out = new DefaultMp4Builder().build(result);
FileChannel fc = new RandomAccessFile(
String.format(targetFileName), "rw").getChannel();
Log.d(TAG, "target file:" + targetFileName);
TrackBox tb = out.getMovieBox().getBoxes(TrackBox.class).get(1);
TrackHeaderBox tkhd = tb.getTrackHeaderBox();
double[] b = tb.getTrackHeaderBox().getMatrix();
tkhd.setMatrix(matrix);
fc.position(0);
out.getBox(fc);
fc.close();
for (String file : videoList) {
File TBRFile = new File(speratedDirPath + File.separator + file);
TBRFile.delete();
}
boolean a = videoSourceDirFile.delete();
Log.d(TAG, "try to delete dir:" + a);
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
return false;
}
return true;
}
public static boolean clearFiles(String speratedDirPath) {
File videoSourceDirFile = new File(speratedDirPath);
if (videoSourceDirFile != null
&& videoSourceDirFile.listFiles() != null) {
File[] videoList = videoSourceDirFile.listFiles();
for (File video : videoList) {
video.delete();
}
videoSourceDirFile.delete();
}
return true;
}
public static int createSnapshot(String videoFile, int kind, String snapshotFilepath) {
return 0;
};
public static int createSnapshot(String videoFile, int width, int height, String snapshotFilepath) {
return 0;
}
}
</track></track></track></track>my reference code project link is
-
trying to make OpenCV 3.2.0 work with virtualenv
24 juillet 2017, par lollercoasterI’m on Ubuntu 16.04 with Python 2.7 and virtualenv & virtualenvwrapper.
By following this guide I managed to get the following script working with my system Python2.7 which has
cv2globally installed.I used this script to install it :
######################################
# INSTALL OPENCV ON UBUNTU OR DEBIAN #
######################################
# | THIS SCRIPT IS TESTED CORRECTLY ON |
# |----------------------------------------------------|
# | OS | OpenCV | Test | Last test |
# |----------------|--------------|------|-------------|
# | Ubuntu 16.04.2 | OpenCV 3.2.0 | OK | 20 May 2017 |
# | Debian 8.8 | OpenCV 3.2.0 | OK | 20 May 2017 |
# | Debian 9.0 | OpenCV 3.2.0 | OK | 25 Jun 2017 |
# 1. KEEP UBUNTU OR DEBIAN UP TO DATE
sudo apt-get -y update
sudo apt-get -y upgrade
sudo apt-get -y dist-upgrade
sudo apt-get -y autoremove
# 2. INSTALL THE DEPENDENCIES
# Build tools:
sudo apt-get install -y build-essential cmake
# GUI (if you want to use GTK instead of Qt, replace 'qt5-default' with 'libgtkglext1-dev' and remove '-DWITH_QT=ON' option in CMake):
sudo apt-get install -y qt5-default libvtk6-dev
# Media I/O:
sudo apt-get install -y zlib1g-dev libjpeg-dev libwebp-dev libpng-dev libtiff5-dev libjasper-dev libopenexr-dev libgdal-dev
# Video I/O:
sudo apt-get install -y libdc1394-22-dev libavcodec-dev libavformat-dev libswscale-dev libtheora-dev libvorbis-dev libxvidcore-dev libx264-dev yasm libopencore-amrnb-dev libopencore-amrwb-dev libv4l-dev libxine2-dev
# Parallelism and linear algebra libraries:
sudo apt-get install -y libtbb-dev libeigen3-dev
# Python:
sudo apt-get install -y python-dev python-tk python-numpy python3-dev python3-tk python3-numpy
# Documentation:
sudo apt-get install -y doxygen
# UI stuff
sudo apt-get install libgtk-3-dev libatlas-base-dev gfortran
# 3. INSTALL THE LIBRARY (YOU CAN CHANGE '3.2.0' FOR THE LAST STABLE VERSION)
sudo apt-get install -y unzip wget
# opencv contrib
wget https://github.com/opencv/opencv_contrib/archive/3.2.0.zip -O opencv_contrib-3.2.0.zip
unzip opencv_contrib-3.2.0.zip
rm opencv_contrib-3.2.0.zip
# opencv
wget https://github.com/opencv/opencv/archive/3.2.0.zip
unzip 3.2.0.zip
rm 3.2.0.zip
mv opencv-3.2.0 OpenCV-3.2.0
cd OpenCV-3.2.0
mkdir build
cd build
cmake -D WITH_QT=ON \
-D WITH_OPENGL=ON \
-D FORCE_VTK=ON \
-D WITH_TBB=ON \
-D WITH_GDAL=ON \
-D WITH_XINE=ON \
-D BUILD_EXAMPLES=ON \
-D INSTALL_PYTHON_EXAMPLES=ON \
-D ENABLE_PRECOMPILED_HEADERS=OFF \
-D BUILD_NEW_PYTHON_SUPPORT=ON \
..
make -j4
sudo make install
sudo ldconfig
# 4. EXECUTE SOME OPENCV EXAMPLES AND COMPILE A DEMONSTRATION
# To complete this step, please visit 'http://milq.github.io/install-opencv-ubuntu-debian'.The following script below works great with that system-wide installation :
import cv2
img = cv2.imread('some_img.jpg')Though this one doesn’t - even the system Python can’t read videos for some reason...
import cv2
video_capture = cv2.VideoCapture(0)
ret, frame = video_capture.read()
print ret # always Falsebut I want it to work with my virtualenv. So I recompiled OpenCV with :
cmake -D WITH_QT=ON \
-D WITH_OPENGL=ON \
-D FORCE_VTK=ON \
-D WITH_TBB=ON \
-D WITH_GDAL=ON \
-D WITH_XINE=ON \
-D BUILD_EXAMPLES=ON \
-D INSTALL_PYTHON_EXAMPLES=ON \
-D ENABLE_PRECOMPILED_HEADERS=OFF \
-D BUILD_NEW_PYTHON_SUPPORT=ON \
-D OPENCV_EXTRA_MODULES_PATH=/home/me/code/myproject/opencv_contrib-3.2.0/modules \
-D PYTHON_EXECUTABLE=~/.envs/myenv/bin/python \
..
make -j4
sudo make install
sudo ldconfigHere’s the CMake log :
-- Found VTK ver. 6.2.0 (usefile: /usr/lib/cmake/vtk-6.2/UseVTK.cmake)
-- Caffe: NO
-- Protobuf: YES
-- Glog: NO
-- freetype2: YES
-- harfbuzz: YES
-- Module opencv_sfm disabled because the following dependencies are not found: Glog/Gflags
-- freetype2: YES
-- harfbuzz: YES
-- Checking for modules 'tesseract;lept'
-- No package 'tesseract' found
-- No package 'lept' found
-- Tesseract: NO
-- Check contents of vgg_generated_48.i ...
-- Check contents of vgg_generated_64.i ...
-- Check contents of vgg_generated_80.i ...
-- Check contents of vgg_generated_120.i ...
-- Check contents of boostdesc_bgm.i ...
-- Check contents of boostdesc_bgm_bi.i ...
-- Check contents of boostdesc_bgm_hd.i ...
-- Check contents of boostdesc_binboost_064.i ...
-- Check contents of boostdesc_binboost_128.i ...
-- Check contents of boostdesc_binboost_256.i ...
-- Check contents of boostdesc_lbgm.i ...
--
-- General configuration for OpenCV 3.2.0 =====================================
-- Version control: 817bd7b-dirty
--
-- Extra modules:
-- Location (extra): /home/me/code/myproject/opencv_contrib-3.2.0/modules
-- Version control (extra): 817bd7b-dirty
--
-- Platform:
-- Timestamp: 2017-07-20T18:25:26Z
-- Host: Linux 4.8.0-58-generic x86_64
-- CMake: 3.5.1
-- CMake generator: Unix Makefiles
-- CMake build tool: /usr/bin/make
-- Configuration: Release
--
-- C/C++:
-- Built as dynamic libs?: YES
-- C++ Compiler: /usr/bin/c++ (ver 5.4.0)
-- C++ flags (Release): -fsigned-char -W -Wall -Werror=return-type -Werror=non-virtual-dtor -Werror=address -Werror=sequence-point -Wformat -Werror=format-security -Wmissing-declarations -Wundef -Winit-self -Wpointer-arith -Wshadow -Wsign-promo -Wno-narrowing -Wno-delete-non-virtual-dtor -Wno-comment -fdiagnostics-show-option -Wno-long-long -pthread -fomit-frame-pointer -msse -msse2 -mno-avx -msse3 -mno-ssse3 -mno-sse4.1 -mno-sse4.2 -ffunction-sections -fvisibility=hidden -fvisibility-inlines-hidden -O3 -DNDEBUG -DNDEBUG
-- C++ flags (Debug): -fsigned-char -W -Wall -Werror=return-type -Werror=non-virtual-dtor -Werror=address -Werror=sequence-point -Wformat -Werror=format-security -Wmissing-declarations -Wundef -Winit-self -Wpointer-arith -Wshadow -Wsign-promo -Wno-narrowing -Wno-delete-non-virtual-dtor -Wno-comment -fdiagnostics-show-option -Wno-long-long -pthread -fomit-frame-pointer -msse -msse2 -mno-avx -msse3 -mno-ssse3 -mno-sse4.1 -mno-sse4.2 -ffunction-sections -fvisibility=hidden -fvisibility-inlines-hidden -g -O0 -DDEBUG -D_DEBUG
-- C Compiler: /usr/bin/cc
-- C flags (Release): -fsigned-char -W -Wall -Werror=return-type -Werror=non-virtual-dtor -Werror=address -Werror=sequence-point -Wformat -Werror=format-security -Wmissing-declarations -Wmissing-prototypes -Wstrict-prototypes -Wundef -Winit-self -Wpointer-arith -Wshadow -Wno-narrowing -Wno-comment -fdiagnostics-show-option -Wno-long-long -pthread -fomit-frame-pointer -msse -msse2 -mno-avx -msse3 -mno-ssse3 -mno-sse4.1 -mno-sse4.2 -ffunction-sections -fvisibility=hidden -O3 -DNDEBUG -DNDEBUG
-- C flags (Debug): -fsigned-char -W -Wall -Werror=return-type -Werror=non-virtual-dtor -Werror=address -Werror=sequence-point -Wformat -Werror=format-security -Wmissing-declarations -Wmissing-prototypes -Wstrict-prototypes -Wundef -Winit-self -Wpointer-arith -Wshadow -Wno-narrowing -Wno-comment -fdiagnostics-show-option -Wno-long-long -pthread -fomit-frame-pointer -msse -msse2 -mno-avx -msse3 -mno-ssse3 -mno-sse4.1 -mno-sse4.2 -ffunction-sections -fvisibility=hidden -g -O0 -DDEBUG -D_DEBUG
-- Linker flags (Release):
-- Linker flags (Debug):
-- ccache: NO
-- Precompiled headers: NO
-- Extra dependencies: Qt5::Test Qt5::Concurrent Qt5::OpenGL /usr/lib/x86_64-linux-gnu/libwebp.so /usr/lib/x86_64-linux-gnu/libjasper.so /usr/lib/x86_64-linux-gnu/libImath.so /usr/lib/x86_64-linux-gnu/libIlmImf.so /usr/lib/x86_64-linux-gnu/libIex.so /usr/lib/x86_64-linux-gnu/libHalf.so /usr/lib/x86_64-linux-gnu/libIlmThread.so /usr/lib/libgdal.so dc1394 xine avcodec-ffmpeg avformat-ffmpeg avutil-ffmpeg swscale-ffmpeg Qt5::Core Qt5::Gui Qt5::Widgets /usr/lib/x86_64-linux-gnu/hdf5/serial/lib/libhdf5.so /usr/lib/x86_64-linux-gnu/libpthread.so /usr/lib/x86_64-linux-gnu/libsz.so /usr/lib/x86_64-linux-gnu/libdl.so /usr/lib/x86_64-linux-gnu/libm.so vtkRenderingOpenGL vtkImagingHybrid vtkIOImage vtkCommonDataModel vtkCommonMath vtkCommonCore vtksys vtkCommonMisc vtkCommonSystem vtkCommonTransforms vtkCommonExecutionModel vtkDICOMParser vtkIOCore /usr/lib/x86_64-linux-gnu/libz.so vtkmetaio /usr/lib/x86_64-linux-gnu/libjpeg.so /usr/lib/x86_64-linux-gnu/libpng.so /usr/lib/x86_64-linux-gnu/libtiff.so vtkImagingCore vtkRenderingCore vtkCommonColor vtkFiltersExtraction vtkFiltersCore vtkFiltersGeneral vtkCommonComputationalGeometry vtkFiltersStatistics vtkImagingFourier vtkalglib vtkFiltersGeometry vtkFiltersSources vtkInteractionStyle vtkRenderingLOD vtkFiltersModeling vtkIOPLY vtkIOGeometry /usr/lib/x86_64-linux-gnu/libjsoncpp.so vtkFiltersTexture vtkRenderingFreeType /usr/lib/x86_64-linux-gnu/libfreetype.so vtkftgl vtkIOExport vtkRenderingAnnotation vtkImagingColor vtkRenderingContext2D vtkRenderingGL2PS vtkRenderingContextOpenGL /usr/lib/libgl2ps.so vtkRenderingLabel dl m pthread rt /usr/lib/x86_64-linux-gnu/libGLU.so /usr/lib/x86_64-linux-gnu/libGL.so tbb
-- 3rdparty dependencies: libprotobuf
--
-- OpenCV modules:
-- To be built: core flann hdf imgproc ml photo reg surface_matching video viz dnn freetype fuzzy imgcodecs shape videoio highgui objdetect plot superres ts xobjdetect xphoto bgsegm bioinspired dpm face features2d line_descriptor saliency text calib3d ccalib cvv datasets rgbd stereo tracking videostab xfeatures2d ximgproc aruco optflow phase_unwrapping stitching structured_light java python2 python3
-- Disabled: world contrib_world
-- Disabled by dependency: -
-- Unavailable: cudaarithm cudabgsegm cudacodec cudafeatures2d cudafilters cudaimgproc cudalegacy cudaobjdetect cudaoptflow cudastereo cudawarping cudev cnn_3dobj matlab sfm
--
-- GUI:
-- QT 5.x: YES (ver 5.5.1)
-- QT OpenGL support: YES (Qt5::OpenGL 5.5.1)
-- OpenGL support: YES (/usr/lib/x86_64-linux-gnu/libGLU.so /usr/lib/x86_64-linux-gnu/libGL.so)
-- VTK support: YES (ver 6.2.0)
--
-- Media I/O:
-- ZLib: /usr/lib/x86_64-linux-gnu/libz.so (ver 1.2.8)
-- JPEG: /usr/lib/x86_64-linux-gnu/libjpeg.so (ver )
-- WEBP: /usr/lib/x86_64-linux-gnu/libwebp.so (ver encoder: 0x0202)
-- PNG: /usr/lib/x86_64-linux-gnu/libpng.so (ver 1.2.54)
-- TIFF: /usr/lib/x86_64-linux-gnu/libtiff.so (ver 42 - 4.0.6)
-- JPEG 2000: /usr/lib/x86_64-linux-gnu/libjasper.so (ver 1.900.1)
-- OpenEXR: /usr/lib/x86_64-linux-gnu/libImath.so /usr/lib/x86_64-linux-gnu/libIlmImf.so /usr/lib/x86_64-linux-gnu/libIex.so /usr/lib/x86_64-linux-gnu/libHalf.so /usr/lib/x86_64-linux-gnu/libIlmThread.so (ver 2.2.0)
-- GDAL: /usr/lib/libgdal.so
-- GDCM: NO
--
-- Video I/O:
-- DC1394 1.x: NO
-- DC1394 2.x: YES (ver 2.2.4)
-- FFMPEG: YES
-- avcodec: YES (ver 56.60.100)
-- avformat: YES (ver 56.40.101)
-- avutil: YES (ver 54.31.100)
-- swscale: YES (ver 3.1.101)
-- avresample: NO
-- GStreamer: NO
-- OpenNI: NO
-- OpenNI PrimeSensor Modules: NO
-- OpenNI2: NO
-- PvAPI: NO
-- GigEVisionSDK: NO
-- Aravis SDK: NO
-- UniCap: NO
-- UniCap ucil: NO
-- V4L/V4L2: NO/YES
-- XIMEA: NO
-- Xine: YES (ver 1.2.6)
-- gPhoto2: NO
--
-- Parallel framework: TBB (ver 4.4 interface 9002)
--
-- Other third-party libraries:
-- Use IPP: 9.0.1 [9.0.1]
-- at: /home/me/code/myproject/OpenCV-3.2.0/build/3rdparty/ippicv/ippicv_lnx
-- Use IPP Async: NO
-- Use VA: NO
-- Use Intel VA-API/OpenCL: NO
-- Use Lapack: NO
-- Use Eigen: YES (ver 3.2.92)
-- Use Cuda: NO
-- Use OpenCL: YES
-- Use OpenVX: NO
-- Use custom HAL: NO
--
-- OpenCL: <dynamic loading="loading" of="of" opencl="opencl" library="library">
-- Include path: /home/me/code/myproject/OpenCV-3.2.0/3rdparty/include/opencl/1.2
-- Use AMDFFT: NO
-- Use AMDBLAS: NO
--
-- Python 2:
-- Interpreter: /home/me/.envs/myenv/bin/python (ver 2.7.12)
-- Libraries: /usr/lib/x86_64-linux-gnu/libpython2.7.so (ver 2.7.12)
-- numpy: /home/me/.envs/myenv/local/lib/python2.7/site-packages/numpy/core/include (ver 1.13.1)
-- packages path: lib/python2.7/site-packages
--
-- Python 3:
-- Interpreter: /usr/bin/python3 (ver 3.5.2)
-- Libraries: /usr/lib/x86_64-linux-gnu/libpython3.5m.so (ver 3.5.2)
-- numpy: /usr/lib/python3/dist-packages/numpy/core/include (ver 1.11.0)
-- packages path: lib/python3.5/dist-packages
--
-- Python (for build): /home/me/.envs/myenv/bin/python
--
-- Java:
-- ant: /usr/bin/ant (ver 1.9.6)
-- JNI: /usr/lib/jvm/default-java/include /usr/lib/jvm/default-java/include/linux /usr/lib/jvm/default-java/include
-- Java wrappers: YES
-- Java tests: YES
--
-- Matlab: Matlab not found or implicitly disabled
--
-- Documentation:
-- Doxygen: /usr/bin/doxygen (ver 1.8.11)
--
-- Tests and samples:
-- Tests: YES
-- Performance tests: YES
-- C/C++ Examples: YES
--
-- Install path: /usr/local
--
-- cvconfig.h is in: /home/me/code/myproject/OpenCV-3.2.0/build
-- -----------------------------------------------------------------
--
</dynamic>Unfortunately, while this works and I can import
cv2in the shell, it cannot read video using the above script, probably due to incorrect compilation or linking offfmpeg? The confusing part is the system-wide installation of OpenCV works fine, even without ffmpeg installed !What am I doing wrong ? How can I get OpenCV working with a virtualenv ?
====
EDIT : Running the C++ video writing example has this result :
$ cd /home/me/code/myproject/OpenCV-3.2.0/build/bin
$ ./cpp-tutorial-video-write ../../samples/data/vtest.avi R Y
------------------------------------------------------------------------------
This program shows how to write video files.
You can extract the R or G or B color channel of the input video.
Usage:
./video-write [ R | G | B] [Y | N]
------------------------------------------------------------------------------
OpenCV: FFMPEG: tag 0xffffffff/'����' is not found (format 'avi / AVI (Audio Video Interleaved)')'
(cpp-tutorial-video-write:19523): GStreamer-CRITICAL **: gst_element_make_from_uri: assertion 'gst_uri_is_valid (uri)' failed
OpenCV Error: Unsupported format or combination of formats (Gstreamer Opencv backend does not support this codec.) in CvVideoWriter_GStreamer::open, file /home/me/code/myproject/OpenCV-3.2.0/modules/videoio/src/cap_gstreamer.cpp, line 1388
VIDEOIO(cvCreateVideoWriter_GStreamer(filename, fourcc, fps, frameSize, is_color)): raised OpenCV exception:
/home/me/code/myproject/OpenCV-3.2.0/modules/videoio/src/cap_gstreamer.cpp:1388: error: (-210) Gstreamer Opencv backend does not support this codec. in function CvVideoWriter_GStreamer::open
Could not open the output video for write: ../../samples/data/vtest.aviAnd the
opencv_test_videoiounit test reports the following : https://pastebin.com/q4mf224QHowever, running the c++ video starter example DOES work, with the following command and output, I can see the webcam working and streaming video in the highgui interface :
$ ./cpp-example-videocapture_starter 0
VIDEOIO ERROR: V4L: device 0: Unable to query number of channels
(ERROR)icvOpenAVI_XINE(): Unable to initialize video driver.
GStreamer: Error opening bin: no element "0"
press space to save a picture. q or esc to quit
init done
opengl support available
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