prabhakar-sivanesan / opencv-rtsp-server Goto Github PK

Hi,
thanks for your code!

I fail to run your code as the gi package cannot be found. I understand it requires the python packages PyGObject and pycairo.
The environment is a docker container of python:3.9.2-slim-buster.

On the Dockerfile I have the following install commands:

RUN apt-get update && apt-get install -y
RUN apt-get install ffmpeg libsm6 libxext6 -y
RUN apt-get install libgstreamer1.0-0 gstreamer1.0-plugins-base gstreamer1.0-plugins-good gstreamer1.0-plugins-bad gstreamer1.0-plugins-ugly gstreamer1.0-libav gstreamer1.0-doc gstreamer1.0-tools gstreamer1.0-x gstreamer1.0-alsa gstreamer1.0-gl gstreamer1.0-gtk3 gstreamer1.0-qt5 gstreamer1.0-pulseaudio -y
RUN apt-get install libglib2.0-dev libgstrtspserver-1.0-dev gstreamer1.0-rtsp -y

RUN pip install opencv-python
RUN pip install pycairo
RUN pip install PyGObject

and then I added also RUN apt-get install libcairo2 -y just before the pip commands and also other intents but they all fail with:

#11 28.26 Building wheels for collected packages: pycairo
#11 28.27   Building wheel for pycairo (pyproject.toml): started
#11 30.94   Building wheel for pycairo (pyproject.toml): finished with status 'error'
#11 30.96   error: subprocess-exited-with-error
#11 30.96
#11 30.96   × Building wheel for pycairo (pyproject.toml) did not run successfully.
#11 30.96   │ exit code: 1
#11 30.96   ╰─> [17 lines of output]
#11 30.96       running bdist_wheel
#11 30.96       running build
#11 30.96       running build_py
#11 30.96       creating build
#11 30.96       creating build/lib.linux-x86_64-cpython-39
#11 30.96       creating build/lib.linux-x86_64-cpython-39/cairo
#11 30.96       copying cairo/__init__.py -> build/lib.linux-x86_64-cpython-39/cairo
#11 30.96       copying cairo/__init__.pyi -> build/lib.linux-x86_64-cpython-39/cairo
#11 30.96       copying cairo/py.typed -> build/lib.linux-x86_64-cpython-39/cairo
#11 30.96       warning: build_py: byte-compiling is disabled, skipping.
#11 30.96
#11 30.96       running build_ext
#11 30.96       Package cairo was not found in the pkg-config search path.
#11 30.96       Perhaps you should add the directory containing `cairo.pc'
#11 30.96       to the PKG_CONFIG_PATH environment variable
#11 30.96       No package 'cairo' found
#11 30.96       Command '['pkg-config', '--print-errors', '--exists', 'cairo >= 1.15.10']' returned non-zero exit status 1.
#11 30.96       [end of output]
#11 30.96
#11 30.96   note: This error originates from a subprocess, and is likely not a problem with pip.
#11 30.96   ERROR: Failed building wheel for pycairo
#11 30.96 Failed to build pycairo
#11 30.96 ERROR: Could not build wheels for pycairo, which is required to install pyproject.toml-based projects

Any idea how to solve this?

Thanks!

When launching the script from MacOS it fails with

(<unknown>:18406): GStreamer-RTSP-Server-CRITICAL **: 09:01:15.865: could not create element Traceback (most recent call last): File "stream.py", line 59, in do_create_element return Gst.parse_launch(self.launch_string) gi.repository.GLib.Error: gst_parse_error: no element »appsrc« (1)
I've installed gstreamer (and plugins) with homebrew. I also installed
pip install gobject PyGObject

I was able to run the script using the default arguments and connect to and view the RTSP stream, and it was working correctly.
However, as soon as I change the output resolution of the RTSP stream by modifying the --image_width and --image_height arguments in the bash script, then when I connect to the generated RTSP stream, it either only displays a green image, or freezes immediately while displaying strange artifacts:

I don't know if you're developing this any further but in case you do, what do I need to do to install GStreamer and RTSP server on Ubuntu 20.04?
Also my installation on Ubuntu 18.04 failed: It said that libgstrtspserver-1.0-dev could not be installed because of dependecies that failed to install. Is there a fix for that (the internet couldn't show me anything fitting)?

Hi.

I'm trying to implement a rtsp server which sends loseless real image.

I tried the launch_string as below, and I cannot get open video in the client.

Can you help me out?

Thanks!

    self.launch_string = 'appsrc name=kinect is-live=true block=true format=GST_FORMAT_TIME ' \
                         'caps=video/x-raw,format=BGR,width={},height={},framerate={}/1 ' \
                         '! rtpvrawpay' \
                         .format(opt.image_width, opt.image_height, self.fps)

Is it possible to configure GstRtspServer to use the HTTP protocol? I can connect through UDP and TCP but I really need HTTP.

I am having troubles when I try running open_rtsp.py. I have stream.py running in one terminal with the following command python3 stream.py --device_id 0 --fps 30 --image_width 640 --image_height 480 --port 8554 --stream_uri /video_stream.

In the terminal of where I am running open_rtsp.py, I am getting error OpenCV(4.5.5) /io/opencv/modules/videoio/src/cap_images.cpp:253: error: (-5:Bad argument) CAP_IMAGES: can't find starting number (in the name of file): rtsp://192.168.1.7:8554/video_stream in function 'icvExtractPattern'

Can we use this on a windows machine?

This is not really an issue but more of a question.

I see that on this line, you are setting the frame rate.

Do you know how one could go about using a variable framerate?
In my setup, I grab a frame from an RTSP stream, perform some processing, then restream the processed frame as a new RTSP stream.

The issue is that the processing I perform can vary based on the image received from the RTSP stream and hence is not a constant time, so it's therefore not possible to achieved a fixed frame rate.

Thanks for the great work.

i am trying out your work and noticed that if i changed the videocapture instead of device 0 but to a video file, the output is green screen. Can advise? thank you

I tried to use the library.
I am trying to stream from a CCTV using RTSP stream.
Once the command starts run

python stream.py --device_id "rtsp//xxxxx" --fps 30 --image_width 640 --image_height 480 --port 8554 --stream_uri /video_stream

SensorFactory's init method run.
But on_need_data(), do_create_element(), do_configure() methods didn't run.

What could be issue?

Hi @prabhakar-sivanesan Awesome project,
I have a question, I noticed the RTSP stream only starts when a connection is made. For example, only starts when I connect to the stream via VLC and stops when I stop the stream (or close VLC).
How can I make the rtsp server run in the backgroud without having to open VLC?

I added the following line but doesn't seem to make a difference:
.set_state(Gst.State.PLAYING)

Hello,
i'm iterested in your project but i'm finding a way to stream the output from one python to your server.
For now i can see the video with FFMPEG using this command:
python streamcamera.py | ffplay -i pipe:

If i run the script with this command python streamcamera.py i have the video feed output.

Thanks a lot
Stefano

HI @prabhakar-sivanesan , the rtsp stream has a 0.5 s. delay, can i somehow reduce it?

I have rtsp in the h264 format getting an error "failed to open rtsp"