All Questions
18
questions
0
votes
1
answer
50
views
OpenCV GStreamer VideoWriter write hangs in a Python multiprocessing Process
I'm working on real-time image processing using a Raspberry Pi camera. To optimize processing times, I'm trying to separate some image transformations and video encoding in a separate Process:
import ...
0
votes
2
answers
96
views
I am not able to display and save a video from my Flir hadron camera using Gstreamer command in python3 Opencv
I'm trying to display and save my Flir Hadron camera videos using gstreamer pipelines in Python 3 OpenCV. I have a perfectly working Gstreamer pipelines that are able to display and save videos with ...
0
votes
1
answer
716
views
Grey Video frames when using OpenCV Videocapture with GStreamer C++
Hey,
I am new to Gstreamer and want to send a video that is captured from a camera and manipulated with OpenCV over a network to the receiving part. The receiving part then read it and displays it. ...
- 1
1
vote
1
answer
1k
views
Gstreamer + OpenCV h264 Encoding&Decoding İmage Deformation Problem
Hardware:
Apalis IMX8 CPU(SOM)
and
Sensoray model-1012 video frame grabber
I am trying to save analog video with h264 coding and play it.
The code has 3 parts. Reading camera, saving video with coding ...
- 53
3
votes
0
answers
1k
views
How to forward rtsp video source to receiver over TCP or UDP with GStreamer CLI?
this is my first question here (as I remember) so if I'm doing something wring with the process please let me know.
Here is the situation:
I have a computer with access to an IP Camera streaming ...
- 31
0
votes
1
answer
971
views
Segmentation Fault when trying to initialize cv2.VideoWriter with gstreamer arguments in OpenCV-Python
I am attempting to use gstreamer in order to convert my OpenCV frames into a rtp stream, but I have trouble even opening up the webcam and other files.
I was having trouble with getting my script to ...
- 2,171
0
votes
1
answer
2k
views
Errors and warnings with GStreamer are they undermining my output?
I am using a Python3 script to split video clips (.mp4) into frames (.png images). To do so I use opencv (cv2) methods.
import cv2
import os
dataset_folder = 'Video-dataset/'
save_path = 'Video-...
- 238
1
vote
1
answer
862
views
What is the best way to process video and transmitt on imx6 board?
Recently, I'm trying to use a board with imx6 processor and a MIPI-CSI camera to transmit video.
Our goal is to transmit the video (1920x1080@30fps) through the RTP protocol and we did it using ...
- 11
0
votes
1
answer
2k
views
GStreamer: cannot put pipeline to play
this is a command what I run in the terminal,rosrun ros_exploration ros_explorationafter that, I got an unexpected error as below.it should be mentioning that the note,GStreamer: cannot put pipeline ...
- 92
0
votes
1
answer
276
views
Opencv 3.1 compiled with FFMPEG, but won't open https urls
I work on a 16.04 system, and have successfully installed opencv 3.1 with FFMPEG flags enabled. I double checked this was actually the case by cv2.getBuildInformation() and I got FFMPEG = YES.
I am ...
- 15
1
vote
1
answer
1k
views
GStreamer in OpenCV does not send video data over UDP
I'm trying to use GStreamer on Mac (10.12.6) to stream a video encoded from OpenCV frames via UDP. For some reason this does not work and I'm not getting any error output from GStreamer or OpenCV. ...
13
votes
1
answer
43k
views
How to open a GStreamer pipeline from OpenCV with VideoWriter
I am capturing video frames with OpenCV VideoCapture. The capturing works fine as I am able to use the frames like this:
cv::VideoCapture cap("v4l2src device=/dev/video1 ! videoscale ! videorate ! ...
- 213
3
votes
1
answer
9k
views
Access Camera using OpenCV (Via GStreamer)
I'm trying to develop an application which should analyse a video stream from a MIPI camera(5MP). So I'm using gstreamer to get the video feed access it using OpenCV. I tried the following pipeline ...
- 1,519
1
vote
1
answer
20k
views
Opening a GStreamer pipeline from OpenCV with VideoWriter
I am capturing and processing video frames with OpenCV, and I would like to write them as a h265 video file. I am struggling to get a proper Gstreamer pipeline to work from OpenCV.
Gstreamer works ...
- 4,256
3
votes
1
answer
7k
views
Gstreamer Appsink not getting Data from the Pipeline
I am designing a pipeline to Encode a video frame from a opencv application (got from a web cam) to video/x-h264 format, send it via network and decode it on another device of different type (probably ...
- 355