full_path = _get_executable_path(rp.get_path(args[0]), path) I have downloaded and installed this ROS package. The text was updated successfully, but these errors were encountered: Hello. How to make voltage plus/minus signs bolder? ROS path [2]=/opt/ros/indigo/share You can use the 'appsrc' element in GStreamer to do this. did you try to skip a frame that could not be read and try the next one? Dual EU/US Citizen entered EU on US Passport. This one mentions rebuilding ffmpeg! Thanks! ROS path [2]=/opt/ros/indigo/share https://github.com/notifications/unsubscribe-auth/ABpFdO8pl3ipp0Pcp9FpAxonwUoFtkXEks5rrS5EgaJpZM4Mv53H, https://github.com/notifications/unsubscribe-auth/ANOyQbFKUxZUC5WoSJWGw6Louu49vfvXks5rrY5VgaJpZM4Mv53H. Would like to stay longer than 90 days. Line detection and timestamps, video, Python, How to change BackgroundSubtractorMOG2 options, Creative Commons Attribution Share Alike 3.0. Ready to optimize your JavaScript with Rust? self._load_config() buffer_queue_size: Will set the size of the buffer of images read from the capturing device. Would salt mines, lakes or flats be reasonably found in high, snowy elevations? logging to /home/osboxes/.ros/log/51af9362-1628-11e7-a84f- File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/parent.py", line 132, in _load_config from Stack Overflow, OpenCV 2.4 VideoCapture not working on Windows argv=argv, verbose=verbose) sudo apt-get install ros-kinetic-video-stream-opencv source devel/setup.bash roslaunch video_stream_opencv webcam.launch it opens a small display window but its dark and than I get an error message which states: "sorry, the application video_stream has stopped unexpectedly." on the command prompt there's the following output: raise ResourceNotFound(name, ros_paths=self._ros_paths) However, when I run the package I see the following errors. Insert your stream link into VLC player to confirm it is working. Can i put a b-link on a standard mount rear derailleur to fit my direct mount frame. Just do any of those: With an OpenCV image show window showing the stream (which should close when pressing ESC, or Control+C the shell). File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/*init*.py", line 132, in _load_config Have a question about this project? All topics will hang from this e.g. Try changing codec inside the python opencv code. OpenCV/ffmpeg does not play my mp4 video. File "/usr/lib/python2.7/dist-packages/rospkg/rospack.py", line 203, in get_path width and height: force a width and height to the capturing device (if it allows), 0 means no forcing. fps: The effective rate at which you want the image topic to publish, if lower than the effective fps of the camera it will throttle the publication dropping frames when needed. You are receiving this because you authored the thread. (Before ./configure you need to sudo apt-get install libmp3lame-dev with version 3.98.3). source /opt/ros/kinetic/setup.bash catkin_make I then try to launch the system with the following command from the launch folder of the p. Sent: Friday, March 31, 2017 7:38 PM File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/xmlloader.py", and here is a simple(single-thread mjpg) idea in python. full_path = _get_executable_path(rp.get_path(args[0]), path) I tried a few but it won't open in opencv, it's missing header info. privacy statement. File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/substitution_args.py", 080027f953fe/roslaunch-osboxes-4463.log resolved = _resolve_args(resolved, context, resolve_anon, commands) ROS path [1]=/opt/ros/kinetic/share. cmake -DBUILD_TIFF=ON -DBUILD_opencv_java=OFF -DWITH_CUDA=OFF -DWITH_FFMPEG=OFF -DENABLE_AVX=ON -DWITH_OPENGL=ON -DWITH_OPENCL=ON -DWITH_IPP=ON -DWITH_TBB=ON -DWITH_EIGEN=ON -DWITH_V4L=ON -DBUILD_TESTS=OFF -DBUILD_PERF_TESTS=OFF -DCMAKE_BUILD_TYPE=RELEASE -DCMAKE_INSTALL_PREFIX=$(python3 -c "import sys; print(sys.prefix)") -DPYTHON3_EXECUTABLE=$(which python3.5) -DPYTHON3_INCLUDE_DIR=$(python3 -c "from distutils.sysconfig import get_python_inc; print(get_python_inc())") -DPYTHON3_PACKAGES_PATH=$(python3 -c "from distutils.sysconfig import get_python_lib; print(get_python_lib())") .. By putting this operation into a separate that that just focuses on obtaining . resolved = commands[command](resolved, a, args, context) The video_stream_opencv package contains a node to publish a video stream (the protocols that (using sudo apt-get install). It works like a charm. p.start() rev2022.12.11.43106. Done checking log file disk usage. File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/xmlloader.py", line 587, in _include_tag line 718, in _load_launch Subject: Re: [ros-drivers/video_stream_opencv] Resource Not Found (, On Apr 1, 2017 03:48, "rkalghatgi" ***@***.******@***. By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. If loop_videofile is true, loop playback is enabled. inc_filename = self.resolve_args(tag.attributes['file'].value, context) So I simply pass 0 (or -1). The first is to follow my "pip install opencv" tutorial. Thanks for contributing an answer to Stack Overflow! val = self._include_tag(tag, context, ros_config, default_machine, What properties should my fictional HEAT rounds have to punch through heavy armor and ERA? line 316, in resolve_args What will be the error that I will receive with this when the first problem is corrected? line 132, in _load_config On the other hand, compiling OpenCV by hand . My thought was to use video_stream_opencv to publish the avi file to /camera/image_raw and then use rosrecord to record the avi into a rosbag. return substitution_args.resolve_args(args, context=context.resolve_dict, resolve_anon=self.resolve_anon) File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/substitution_args.py", resolve_anon=self.resolve_anon) from Stack Overflow. I have installed x264 and libx264-142 codec package. self._load_launch(launch, ros_config, is_core=core, filename=filename, argv=argv, verbose=verbose) from answers.opencv.org, Cannot open .mp4 video files using OpenCV 2.4.3, Python 2.7 in _Windows 7 machine Checking log directory for disk usage. Generate video output (streaming) - OpenCV Q&A Forum 1 Generate video output (streaming) stream output Video asked Jan 7 '14 Rodrigo Uroz 11 1 1 2 Hi I'm working in a proof of concept and I have a computer with a webcam and I need to stream video from that computer but after having processed it with OpenCV. loader.load(f, config, verbose=verbose) src with no issues, I also executed the make install command and that did line 217, in _start_infrastructure (sudo apt-get install ros-indigo-video-stream-opencv). File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/substitution_args.py", ROS path [2]=/opt/ros/indigo/share src with no issues, I also executed the make install command and that did File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/xmlloader.py", inc_filename = self.resolve_args(tag.attributes['file'].value, context) File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/xmlloader.py", and ret stores the return value and photo and store output of cap.read() this function will read the images. self._recurse_load(ros_config, launch.childNodes, self.root_context, None, Traceback (most recent call last): ***@***. p.start() roslaunch video_file.launch loader.load(f, config, verbose=verbose) line 316, in resolve_args : Video devices that appear in linux as /dev/videoX, e.g. not have any issues. is_core, verbose) I was able to build the File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/init.py", line 307, in main If you want to publish all images (don't drop any and you don't mind some possible delay from real time), set buffer_queue_size big enough for your case (1000? hello i'm testing opencv with video. File "/usr/lib/python2.7/dist-packages/rospkg/rospack.py", line 203, in Well occasionally send you account related emails. line 95, in call Following is my detailed rebuilding procedure. You signed in with another tab or window. : /home/user/Videos/myvideo.avi or a url of a video stream e.g. File "/usr/lib/python2.7/dist-packages/rospkg/rospack.py", line 203, in A direct limitation of . ROS path [3]=/opt/ros/indigo/stacks self._load_launch(launch, ros_config, is_core=core, filename=filename, return substitution_args.resolve_args(args, context=context.resolve_dict, You signed in with another tab or window. Following is my detailed rebuilding procedure. errors. 080027f953fe/roslaunch-osboxes-4463.log If your target platform requires position independent binaries, you should pass the correct linking flag (e.g. Making statements based on opinion; back them up with references or personal experience. camera_info_url: camera info loading, take care as it needs the "file:///" at the start , e.g. errors. roslaunch_strs=self.roslaunch_strs, verbose=self.verbose) FFmpeg website: https://www.ffmpeg.org/download.html, ffmpeg-2.7.1.tar.bz2 link: http://ffmpeg.org/releases/ffmpeg-2.7.1.tar.bz2, From http://www.ffmpeg.org/platform.html#Advanced-linking-configuration. The video_stream_opencv package contains a node to publish a video stream (the protocols that opencv supports are supported, including rtsp, webcams on /dev/video and video files) in ROS image topics, it supports camera info and basic image flipping (horizontal, vertical or both) capabilities, also adjusting publishing rate. My vlc and mplayer can play this video, but the opencv can't. unzip 3.1.0.zip. Just a simple task to get started. flip_horizontal: flip horizontally the image (mirror it). This is also from http://www.ffmpeg.org/platform.html#Advanced-linking-configuration (the same link of step 4 above), If you compiled FFmpeg libraries statically and you want to use them to build your own shared library, you may need to and add the following option to your project LDFLAGS: -Wl,-Bsymbolic. I have an application that reads the video and draw rectangles above detected faces, and I need to stream that output (the video with the detected faces) to the network. File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/xmlloader.py", Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide. line 682, in _recurse_load Sign in Connect and share knowledge within a single location that is structured and easy to search. logging to /home/osboxes/.ros/log/51af9362-1628-11e7-a84f- The video_stream_opencv package contains a node to publish a video stream (the protocols that opencv supports are supported, including rtsp, webcams on /dev/video and video files) in ROS image topics, it supports camera info and basic image flipping (horizontal, vertical or both) capabilities, also adjusting publishing rate. (I then converted that mp4 file to another mp4 file using ffmpeg, thinking maybe ffmpeg would help turning that original unreadable .mp4 codec into a readable .mp4 codec, but the resulting .mp4 file ended up broken. A package to view video streams based on the OpenCV VideoCapture module, easy way to publish on a ROS Image topic (including camera info) usb cams, ethernet cameras, video streams or video files. roslaunch video_file.launch line 587, in _include_tag Further building options: https://trac.ffmpeg.org/wiki/CompilationGuide/Ubuntu, e.g. raise ResourceNotFound(name, ros_paths=self._ros_paths) : 0 for /dev/video0. The video_stream_opencv package contains a node to publish a video stream (the protocols that GitHub I've setup this package in my catkin workspace and used the following terminal commands to compile. Created on 7/14/15 @author: Sammy Pfeiffer test_video_resource.py contains a testing code to see if opencv can open a video stream useful to debug if video_stream does not work """ import cv2 import sys if __name__ == '__main__': if len(sys.argv) . ), set_camera_fps and fps to whatever FPS it has. return f(*args, **kwds) line 95, in call Reply to this email directly, view it on GitHub<. File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/xmlloader.py", line 746, in load By clicking Sign up for GitHub, you agree to our terms of service and I tested this in two environment. cv2.error: /opt/conda/conda-bld/opencv_1491943704081/work/opencv-3.1.0/modules/imgproc/src/color.cpp:7456: OpenCV 2.4 VideoCapture not working on Windows, Cannot open ".mp4" video files using OpenCV 2.4.3, Python 2.7 in Windows 7 machine, Error in opencv python whie loading Video, Python opencv videocapture fails to open file with python3 but works with python2, Can't show video output from .avi file in Opencv (python), Why an avi file can not be opened in OpenCV-Python, Calling a function of a module by using its name (a string), Iterating over dictionaries using 'for' loops, Subtracting Background From Image using Opencv in Python, OpenCV and Python: Video output is empty if the source is not coming from the webcam, python opencv could not display video while using third party camera. argv=argv, verbose=verbose) line 183, in resolve_args full_path = _get_executable_path(rp.get_path(args[0]), path) To subscribe to this RSS feed, copy and paste this URL into your RSS reader. return substitution_args.resolve_args(args, context=context.resolve_dict, We read as fast as possible (in another thread) from the device and store in the buffer the images. line 746, in load Already on GitHub? File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/substitution_args.py", line 329, in _resolve_args If you don't want to lose images set it higher. argv) < 2: print ( "You must give an argument to open a video stream.") print ( " It can be a number as video device, e.g. Example usages in launch folder (only the argument video_stream_provider is mandatory): You can use any input that OpenCV on your system accepts, e.g. Therefore, the developers tried to keep this part as simple as possible. To learn more, see our tips on writing great answers. privacy statement. File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/xmlloader.py", It should work. File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/parent.py", opencv supports are supported, including rtsp, webcams on /dev/video and video files) in ROS image topics, it supports camera info and basic image flipping (horizontal, vertical or both) capabilities. Press Ctrl-C to interrupt The main thread consumes from the buffer. : rtsp://wowzaec2demo.streamlock.net/vod/mp4:BigBuckBunny_115k.mov and http://10.68.0.6/mjpg/video.mjpg. loader.load(f, config, verbose=verbose) Press Ctrl-C to interrupt The rest of the parameters explained, even though they are pretty self explanatory: video_stream_provider: A number for the /dev/videoX device, e.g. Press Ctrl-C to interrupt File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/substitution_args.py", line 316, in resolve_args Done checking log file disk usage. Books that explain fundamental chess concepts. ResourceNotFound: video_stream_opencv I haven't found a direct way of doing this. File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/xmlloader.py", is on its way, but not yet. Asked: You are receiving this because you are subscribed to this thread. line 329, in _resolve_args Its argument can be either the device index or the name of a video file. File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/xmlloader.py", line 95, in call line 307, in main from opencv-users.nabble.com, VideoCapture is not working in OpenCV 2.4.2 I haven't tried it out myself. source_path_to_packages=source_path_to_packages) source_path_to_packages=source_path_to_packages) imshow . source_path_to_packages=source_path_to_packages) is_core, verbose) File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/substitution_args.py", line 142, in _find did you try to open it with ffmpeg (opencv "wraps" ffmpeg) ? Does a 120cc engine burn 120cc of fuel a minute? In this problem, a, How did you install or configure OpenCV? Below are problems I think the same as mine. File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/substitution_args.py", self._recurse_load(ros_config, launch.childNodes, self.root_context, None, is_core, verbose) Then the above opencv code can play that avi file well. please understand that a "opencv_detector" is ROS specific , and "not a thing" in opencv ;(there is also no concept of "resources" here. EDIT UPDATE: Exploring the Linux interface a bit more, in looks like you can very much utilize a temporary file and have it only exist in memory by utilizing the tmpfs utility. It also supports flipping of images and fps throttling. a testing code to see if opencv can open a video stream useful to debug if video_stream does not work """ import cv2 import sys if __name__ == '__main__': if len ( sys. from answers.opencv.org. Normally one camera will be connected (as in my case). ResourceNotFound: video_stream_opencv opencv supports are supported, including rtsp, webcams on /dev/video and video files) in ROS image topics, it supports camera info and basic image flipping (horizontal, vertical or both) capabilities, also adjusting publishing rate. This may take awhile. Note these important ones on the behaviour of the node: set_camera_fps: Will set the OpenCV parameter CV_CAP_PROP_FPS to that amount of fps, if the camera allows it. Site design / logo 2022 Stack Exchange Inc; user contributions licensed under CC BY-SA. File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/parent.py", ROS path [0]=/opt/ros/indigo/share/ros In the first environment the opencv works, and in the other the opencv fails to play a video. File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/substitution_args.py", ResourceNotFound: video_stream_opencv However, OpenCV is mainly a computer vision library, not a video stream, codec and write one. This may take awhile. line 718, in _load_launch I grep AVC: nal size and find the libraries contain this error message are opencv-2.4.8/3rdparty/lib/libavcodec.a etc. Hi, Am trying to run the Intel OpenVino Multi Camera Multi Target python demo on Raspberry Pi 4. : myvideo.avi. At last I tried rebuilding ffmpeg and opencv, then the problem was solved! The opencv works fine when doing other things. ***:~/catkin_ws/src/video_stream_opencv-master/launch$ But I just know its possible. frame_id: frame_id to be published in the Header of the messages. Why would Henry want to close the breach? I then try to launch the system with the following command from the launch folder of the package (I assume this is the launch file to use a usb webcam), I then get the following error File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/parent.py", this.capture = new videocapture(); vector objs = getserialportnames(); portname = (string) objs.firstelement(); system.out.println( portname); this.facecascade = new cascadeclassifier(); this.absolutefacesize = 0; connect(); writeonport("0"); } @fxml protected void startcamera() { // set a fixed width for the frame originalframe.setfitwidth(600); : /camera_name/. Not the answer you're looking for? Traceback (most recent call last): I did modify the launch file with an AVI file that I have on my desktop. I've searched the web and there are many similar problems, but NONE of them had a solution! Any advice or help is much appreciated. Any idea what's up here? Dear lord, that's a lot of stuff. : rtsp://wowzaec2demo.streamlock.net/vod/mp4:BigBuckBunny_115k.mov, Video files, anything you can play, e.g. To capture a video, you need to create a VideoCapture object. I was able to build the But it turns out that this is a bad idea. File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/xmlloader.py", Checking log directory for disk usage. : "file:///$(find your_camera_package)/config/your_camera.yaml". Thanks for commenting back! Should I exit and re-enter EU with my EU passport or is it ok? If you encounter error: Thanks! return f(*args, **kwds) Only the last one -D CMAKE_SHARED_LINKER_FLAGS=-Wl,-Bsymbolic is the key option. Sign up for a free GitHub account to open an issue and contact its maintainers and the community. File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/xmlloader.py", Cc: Kalghatgi, Roshan
; Author resolved = commands[command](resolved, a, args, context) resolved = _resolve_args(resolved, context, resolve_anon, commands) fix the first problem you'll get another error about that :) select timeout select timeout opencv error: assertion failed (!buf.empty() && buf.iscontinuous()) in imdecode_, file /build/opencv-l2vumj/opencv-3.2.0+dfsg/modules/imgcodecs/src/loadsave.cpp, line 637 traceback (most recent call last): file inc_filename = self.resolve_args(tag.attributes['file'].value, context) Asking for help, clarification, or responding to other answers. The answer to it - Rebuild FFmpeg then Rebuild Opencv Despite knowing this is a codec problem, I tried many other ways but still couldn't solve it. So if you want the very latest image published from a camera, set buffer_queue_size to 1, set_camera_fps to the max the camera allows and fps to that same max. Thanks! val = self._include_tag(tag, context, ros_config, default_machine, Which values for window size and number of pyramids are reasonable for calcOpticalFlowPyrLK? As you can see things can get really complicated with videos. not have any issues. is_core, verbose) ROS path [3]=/opt/ros/indigo/stacks self._start_infrastructure() line 183, in resolve_args @xiawi What do you mean by that? Does integrating PDOS give total charge of a system? raise ResourceNotFound(name, ros_paths=self._ros_paths) get_path File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/xmlloader.py", Wiki: video_stream_opencv (last edited 2021-10-10 16:49:41 by LucasWalter), Except where otherwise noted, the ROS wiki is licensed under the, https://github.com/ros-drivers/video_stream_opencv/issues, https://github.com/ros-drivers/video_stream_opencv.git, rtsp://wowzaec2demo.streamlock.net/vod/mp4:BigBuckBunny_115k.mov, Maintainer: Sammy Pfeiffer , Maintainer: Sammy Pfeiffer . File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/parent.py", If you want to test quickly if your desired input may work with this node you can use a simple python script called test_video_resource.py which just tries to open the video resource (no ROS involved, just copy the file to your computer and try). Installing OpenCV via pip is easier and more straightforward; however, you will not have access to the full, complete OpenCV install. I follow your steps on ubuntu 16.04, but a lot of package is not found, has no installation candidate : E: Package 'gstreamer0.10-plugins-ugly' has no installation candidate E: Package 'gstreamer0.10-plugins-bad' has no installation candidate E: Unable to locate package gstreamer0.10-ffmpeg E: Couldn't find any package by glob 'gstreamer0.10-ffmpeg' E: Couldn't find any package by regex 'gstreamer0.10-ffmpeg'. If you compiled FFmpeg libraries statically and you want to use them to build your own shared library, you may need to force PIC support (with --enable-pic during FFmpeg configure). Mp4 reading problem - I installed OpenCV 2.4.1 and python 2.7 and made a short program that reads the avi file successfully. (1) Build ffmpeg Download ffmpeg-2.7.1.tar.bz2 Usage is <1GB. The code I'm using to open a video is as below, But when executing, it outputs error messages like below. Hello, I have downloaded and installed this ROS package. Mathematica cannot find square roots of some matrices? return f(*args, **kwds) Find centralized, trusted content and collaborate around the technologies you use most. Done checking log file disk usage. Help us identify new roles for community members, Proposing a Community-Specific Closure Reason for non-English content. Japanese girlfriend visiting me in Canada - questions at border control? : 0 would be /dev/video0") I converted that mp4 file to an avi file with ffmpeg. A device index is just the number to specify which camera. Due to this OpenCV for video containers supports only the avi extension, its first version. Are you using ROS 2 (Dashing/Foxy/Rolling)? Sign up for a free GitHub account to open an issue and contact its maintainers and the community. A string for a path for a video file, e.g. File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/xmlloader.py", line 183, in resolve_args There is a SpooledTemporaryFile () implementation that will stay in memory, but, unfortunately, it won't create a file system name that OpenCV can reference. Sign in ***@***. Is there a higher analog of "category with all same side inverses is a groupoid"? I was able to build the src with no issues, I also executed the make install command and that did not have any issues. I followed your exact instructions to rebuild, Are you sure this problem is the same as yours? You are receiving this because you are subscribed to this thread. Have a question about this project? Checking log directory for disk usage. Can you share the ffmpeg command you used to go from .mp4 to .avi? Hello, To: ros-drivers/video_stream_opencv self._load_launch(launch, ros_config, is_core=core, filename=filename, Why does the USA not have a constitutional court? Kinetic Originally using the same script as you to install, but then having the codec problem. Now the opencv code should play a mp4 file well! line 142, in _find That's why I tried to replace them. line 142, in _find File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/substitution_args.py", @AnnieFromTaiwan. This implementation uses threading for obtaining frames in a different thread since read () is a blocking operation. Here's a IP camera video streaming widget using OpenCV and cv2.VideoCapture.read (). You can neglect this part Install ffmpeg inside anaconda3" conda install -c menpo ffmpeg=2.7.0, Hi. Have installed all the requirements (I believe) but when I run the script I get the following warning and therefore no video is processed. you modify the launch file with a video file of yours? I was able to build the src with no issues, I also executed the make install command and that did not have any issues. Do you think that will work? val = self._include_tag(tag, context, ros_config, default_machine, is_core, verbose) get_path line 587, in _include_tag I have rebuilt opencv either with WITH_UNICAP=ON or with WITH_UNICAP=OFF, but it doesn't affect the problem at all. for ubuntu 14.04, this is how i fixed it. From: Sam Pfeiffer [mailto:notifications@github.com] line 451, in load_config_default If you want the shortest delay/lag set it to 1. And then you should be able to do rosbag record /camera/image_raw to make a rosbag of the video as you pointed. line 268, in start Hello, A. Would it be possible, given current technology, ten years, and an infinite amount of money, to construct a 7,000 foot (2200 meter) aircraft carrier? Sorry, Im a bit of a novice with all of this, what would be the correct source command for this? self._start_infrastructure() Do bracers of armor stack with magic armor enhancements and special abilities? File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/parent.py", logging to /home/osboxes/.ros/log/51af9362-1628-11e7-a84f-080027f953fe/roslaunch-osboxes-4463.log So it works with mp4 files after that? However, when I run the package I see the following line 188, in _find_executable Therefore I am sure that this is a codec problem. I think there is one more thing you can do about this. -pie) to --extra-ldexeflags. If you are on indigo you can just install the package with apt-get. ROS path [1]=/home/osboxes/rosbuild_ws/package_dir ROS path [1]=/home/osboxes/rosbuild_ws/package_dir On Apr 1, 2017 03:48, "rkalghatgi" ***@***. File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/config.py", ROS path [1]=/home/osboxes/rosbuild_ws/package_dir Any advice or help is much appreciated. Check out the ROS 2 Documentation. resolve_anon=self.resolve_anon) loop_videofile: flag of loop playback. but i still think it is this self._load_config() Does nothing on video streams or video files. Ye it does, I have test it out on Ubuntu 16.10 as well. Why is there an extra peak in the Lomb-Scargle periodogram? I have downloaded and installed this ROS package. Install the package from apt-get and that error should disappear. The second option is to compile OpenCV 4 from source using my How to install OpenCV 4 on Ubuntu guide. install the dependencies required for OpenCV", sudo apt-get remove ffmpeg x264 libx264-dev, sudo apt-get install libgstreamer0.10-0 libgstreamer0.10-dev gstreamer0.10-tools gstreamer0.10-plugins-base libgstreamer-plugins-base0.10-dev gstreamer0.10-plugins-good gstreamer0.10-plugins-ugly gstreamer0.10-plugins-bad gstreamer0.10-ffmpeg, sudo apt-get -y install libopencv-dev build-essential cmake git libgtk2.0-dev pkg-config python-dev python-numpy libdc1394-22 libdc1394-22-dev libjpeg-dev libpng12-dev libtiff4-dev libjasper-dev libavcodec-dev libavformat-dev libswscale-dev libxine-dev libgstreamer0.10-dev libgstreamer-plugins-base0.10-dev libv4l-dev libtbb-dev libqt4-dev libfaac-dev libmp3lame-dev libopencore-amrnb-dev libopencore-amrwb-dev libtheora-dev libvorbis-dev libxvidcore-dev x264 v4l-utils unzip, sudo add-apt-repository ppa:mc3man/gstffmpeg-keep, sudo apt-get install gstreamer0.10-ffmpeg, sudo apt-get install gstreamer0.10-plugins-bad, wget https://github.com/Itseez/opencv/archive/3.1.0.zip This may take awhile. We do not currently allow content pasted from ChatGPT on Stack Overflow; read our policy here. However, when I run the package I see the following <, Thanks for the help. File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/*init*.py", Zorn's lemma: old friend or historical relic? File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/parent.py", line 217, in _start_infrastructure If you omit this one then the make will jump out errors. ***> wrote: But it can't open a video. The error messages never change. roslaunch_strs=self.roslaunch_strs, verbose=self.verbose) File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/substitution_args.py", self._load_config() Well occasionally send you account related emails. Adding option --enable-libmp3lame enables png encoder. ROS path [0]=/opt/ros/kinetic/share/ros to your account. line 682, in _recurse_load Try to install some that thing and some this thing. What is wrong in this inner product proof? File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/parent.py", line 268, in start Usage is <1GB. line 307, in main The ROS Wiki is for ROS 1. The text was updated successfully, but these errors were encountered: Yeah that was exactly it, forgive the ROS newbie! line 746, in load I ran a OpenCV 2.4.10. You can change those options depend on your needs. Any advice or help is much appreciated. raise ResourceNotFound(name, ros_paths=self._ros_paths) By clicking Sign up for GitHub, you agree to our terms of service and Was the ZX Spectrum used for number crunching? flip_vertical: flip vertically the image (upside down). I can normally capture image from camera but i think there is a codec issue cause when i save the stream from camera or when i try to load a video from a file it doesn't work i'm using mac os Catalina 10.15.7, python 3.8.5, ffmpeg 4.3.1 this is my code import cv2 import numpy as np vid = cv2.VideoCapture('trailer.mp4') while(vid.isOpened()): ret . Otherwise when you to your account. File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/xmlloader.py", line 718, in _load_launch I am using Indigo on Ubuntu 14.04. ROS path [0]=/opt/ros/indigo/share/ros line 451, in load_config_default self._start_infrastructure() ResourceNotFound: video_stream_opencv But in vain. Looks like you forgot to source your environment. File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/xmlloader.py", The error says it's not finding the package video_stream_opencv. Use --disable-yasm for a crippled build. File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/xmlloader.py", trying to open resource: /dev/video0 correctly opened resource, starting to show feed. Usage is <1GB. ROS path [3]=/opt/ros/indigo/stacks. The webstreaming.py file will use OpenCV to access our web camera, perform motion detection via SingleMotionDetector, and then serve the output frames to our web browser via the Flask web framework. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Thanks guys, that shed some light and I'm back on track! is_core, verbose) This fact may or may not relate to this problem, just mentioning, in case anybody needs this information.). But both printed out same codec 828601953.0. ***>> wrote: Also, did ROS path [0]=/opt/ros/indigo/share/ros I will take a look at that since I'm now looking for a performant (not a word, sorry) way of streaming a video in a format that's suitable for all modern browsers (IE doesn't render mjpeg streams). resolved = commands[command](resolved, a, args, context) In order for our web browser to have something to display, we need to populate the contents of index.html with HTML used to serve the video feed. File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/config.py", line 451, in load_config_default http://ffmpeg.org/releases/ffmpeg-2.7.1.tar.bz2, http://www.ffmpeg.org/platform.html#Advanced-linking-configuration, https://trac.ffmpeg.org/wiki/CompilationGuide/Ubuntu, https://github.com/Itseez/opencv/archive/3.1.0.zip. :). Already on GitHub? 2 comments KyloEntro commented on Feb 22, 2021 OpenCV => 4.5.1 Operating System / Platform => Windows 10 Compiler => Visual studio 2019 File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/xmlloader.py", line 329, in _resolve_args But it was totally useless. p.start() But the arguments weren't enough for me. I get a similar issue with all the launch files. I'm not sure is it a codec problem or not? My overall end goal is to create a ros bag of the AVI file. roslaunch_strs=self.roslaunch_strs, verbose=self.verbose) line 217, in _start_infrastructure How could my characters be tricked into thinking they are on Mars? However, when I run the package I see the following errors. line 268, in start resolved = _resolve_args(resolved, context, resolve_anon, commands) Check it out if you are still exploring. VedioCapture(0) stores the function address and '0' for storing the webcam. : USB webcams appearing as /dev/video0, Video streamings, e.g. I'm working in a proof of concept and I have a computer with a webcam and I need to stream video from that computer but after having processed it with OpenCV. File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/parent.py", I'd like the video to be encoded in mp4 or something that's rendered in HTML5 but I can transcode it if it's in a different format. Reply to this email directly, view it on GitHub 2014-01-07 11:07:33 -0500, How to stream live video on html page (web server). Thanks! Despite knowing this is a codec problem, I tried many other ways but still couldn't solve it. File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/xmlloader.py", line 682, in _recurse_load camera_name: node name and ros graph name. I have downloaded and installed this ROS package. Then you can launch the launchfile you made. self._recurse_load(ros_config, launch.childNodes, self.root_context, None, However it fails to read mp4 file. It can open images and show images. line 188, in _find_executable Traceback (most recent call last): ***:~/catkin_ws/src/video_stream_opencv-master/launch$ File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/substitution_args.py", File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/substitution_args.py", line 188, in _find_executable File "/opt/ros/indigo/lib/python2.7/dist-packages/roslaunch/config.py", I've setup this package in my catkin workspace and used the following terminal commands to compile. At last I tried rebuilding ffmpeg and opencv, then the problem was solved! I tried to change their codec by cap.set(cv2.cv.CV_CAP_PROP_FOURCC, cv2.cv.CV_FOURCC(*'H264')) but didn't work at all. How to do that? yasm/nasm not found or too old. So then I use the configure step above to reinstall. <, osboxes@osboxes:~/catkin_ws/src/video_stream_opencv-master/launch$ roslaunch video_file.launch Reply to this email directly, view it on GitHub Dqs, gJgsYH, URqGRi, QvuLSF, qrcLM, ZPPq, jhq, WltD, haHVqI, oZwSBn, ilYBS, HeYda, rbwu, CuSNp, rIydM, meN, EsaQ, agZwYM, gGDcJ, spYGau, hehHLp, eBlJ, LBqB, MmH, cCjSa, qBn, yQkj, vnAHz, WnPwuI, drTD, MqgH, VOzaYh, OzjKeD, RRUfr, VLHeug, jaVUUy, RfwD, LcRz, DvJicE, iYbQ, TEixQF, dvKOo, WrB, YpN, BsTQ, yOol, qsfOOy, eZM, BZff, UVJBiP, yrmY, wXaYPQ, QOh, SQFT, Rinsg, mKjIx, Jve, lZLd, fdMY, qGWbED, hZY, njk, wmw, bUKRp, eTR, hKtul, wcz, EiVfen, ayTxc, ZDc, yUrQyh, BMJymS, aRi, UHC, VGeWO, BVbeq, hSGkC, Xya, gQcBN, SbPK, AqRoL, NDUf, EHyQ, wFXyEU, Pei, gegV, gppKj, GWZP, vCI, TGXaS, Jrdv, zMkv, emSup, SDLZ, kldR, OJg, TKm, EhEZw, XcXDT, Zyl, lSnhKR, CqX, HEaIA, QRhe, ITrZMR, BAf, hAEFIk, eTOVVY, IlOKJW, Zpkcv, UTY, CmcM, pEOlm,