first commit

main
protsenkovi 8 months ago
commit 24c50947d2

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FROM condaforge/mambaforge
ENV TZ=Europe/Samara
RUN ln -snf /usr/share/zoneinfo/$TZ /etc/localtime && echo $TZ > /etc/timezone
ARG USER
ARG GROUP
ARG UID
ARG GID
RUN groupadd --gid ${GID} ${GROUP}
RUN useradd --shell /bin/bash --uid ${UID} --gid ${GID} -G sudo --create-home ${USER}
RUN mkdir /wd
RUN chown ${USER}:${GROUP} /wd
# SYSTEM CONFIGURATION
#RUN apt-get update && apt-get install ffmpeg libsm6 libxext6 -y
USER ${USER}
# USER CONFIGURATION
RUN pip install opencv-python-headless aiohttp aiortc
ENV SHELL=/bin/bash
SHELL ["/bin/bash", "--login", "-i", "-c"]
WORKDIR /wd

@ -0,0 +1 @@
# Пример работы webrtc из python

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#!/bin/bash
CURDIRNAME=${PWD##*/}
docker build . -t ${USER}_${CURDIRNAME} \
--build-arg USER=${USER} \
--build-arg GROUP=${USER} \
--build-arg UID=$(id -u ${USER}) \
--build-arg GID=$(id -g ${USER})

@ -0,0 +1,33 @@
-----BEGIN CERTIFICATE-----
MIIFvTCCA6WgAwIBAgIUH5r7oChsDwr2GnJ4pNhBA9Z6S28wDQYJKoZIhvcNAQEL
BQAwbjELMAkGA1UEBhMCUlUxFTATBgNVBAgMDFNhbWFyYVJlZ2lvbjEPMA0GA1UE
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gzk2O7TgrSVz+2Na0d/w7G3WupWjF3omxvc6J0aQDCAly5NnDwGql/91eedlQtI+
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Ug+O8W+0hud0ZEJ/cbsOGTaR9FWLTDJuvykkwOqvgObZ
-----END CERTIFICATE-----

@ -0,0 +1,52 @@
-----BEGIN PRIVATE KEY-----
MIIJQgIBADANBgkqhkiG9w0BAQEFAASCCSwwggkoAgEAAoICAQDDQIJ5ETjwWFQi
6J8Rnyj9qQumZgeolEJxXpct+VdCNDu5Cfe1OmWtbYyDLiNb6Gq+OvjIAlBUvtN5
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BEHQPclrj1azX6p60gj78j8IRnRF/i3T3tkMw0/iopAKbYCTC3TDbdqjwvic0Bfg
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CSPdLwgaewaZc7rPFyagrf59O9jtLmUWPcIL7ZR050CXER2OUyP/ysx/p4cTgRhU
YPjowOCXGKF1wCLF7KsjLwx+/GS40tJN0Hup6Fd5LAozqlA9tu5uW9g4WWLjpzUn
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yOT1wNOhn28zKzKVpiJEtke7p8F2Dg==
-----END PRIVATE KEY-----

Binary file not shown.

@ -0,0 +1,108 @@
<html>
<head>
<meta charset="UTF-8"/>
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>WebRTC demo</title>
<style>
button {
padding: 8px 16px;
}
pre {
overflow-x: hidden;
overflow-y: auto;
}
video {
width: 100%;
height: 1024px;
}
.option {
margin-bottom: 8px;
}
.camera_block {
margin: 10px
}
table {
font-family: arial, sans-serif;
border-collapse: collapse;
width: 100%;
}
td, th {
border: 1px solid #dddddd;
text-align: left;
padding: 8px;
}
tr:nth-child(even) {
background-color: #dddddd;
}
</style>
<script>
// peer connection
var pc_rgb = null;
// data channel
var dc = null, dcInterval = null;
function start_rgb() {
var config = {
sdpSemantics: 'unified-plan'
};
pc_rgb = new RTCPeerConnection(config);
pc_rgb.addEventListener('track', function(evt) {
if (evt.track.kind == 'video') {
document.getElementById('video_rgb').srcObject = evt.streams[0];
}
});
fetch('/offer_video', {
body: JSON.stringify({
url: "demo.mp4"
}),
headers: {
'Content-Type': 'application/json'
},
method: 'POST'
}).then(function(response) {
return response.json();
}).then(function(server_offer) {
pc_rgb.setRemoteDescription(server_offer);
pc_rgb.createAnswer().then(function(answer) {
pc_rgb.setLocalDescription(answer).then(function() {
fetch('/answer_video', {
body: JSON.stringify({
sdp: pc_rgb.localDescription.sdp,
type: pc_rgb.localDescription.type
}),
headers: {
'Content-Type': 'application/json'
},
method: 'POST'
});
})
});
}).catch(function(e) {
alert(e);
});
}
window.onload = (event) => {
console.log("page is fully loaded");
start_rgb();
};
</script>
</head>
<body>
<div id="cameras" style="display: flex; flex-direction: row;">
<div id="camera_rgb" class="camera_block">
<video id="video_rgb" autoplay="true" playsinline="true" class="camera_block" ></video>
</div>
</div>
</body>

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import time
from av import VideoFrame
from aiortc import VideoStreamTrack
import numpy as np
from aiohttp import web
import argparse
import asyncio
import ssl
import os
from aiortc import RTCPeerConnection, RTCSessionDescription
import cv2
import json
import time
ROOT = "./"
class WebRTCVideoSink(VideoStreamTrack):
def __init__(self, vr):
""" vr - opencv is videocapture. """
super().__init__() # don't forget this!
self.counter = 0
self.vr = vr
async def recv(self):
# time.sleep(1/40)
ok, frame = self.vr.read()
pts, time_base = await self.next_timestamp()
if not ok:
return None
else:
frame = VideoFrame.from_ndarray(frame, format="bgr24")
frame.pts = pts
frame.time_base = time_base
self.counter += 1
return frame
pcs_rgb = dict()
async def offer_video(request):
params = await request.json()
pc = RTCPeerConnection()
pcs_rgb[request.remote] = pc
reader = cv2.VideoCapture("demo.mp4")
video_track = WebRTCVideoSink(reader)
pc.addTrack(video_track)
offer = await pc.createOffer()
print("Offer:", offer)
await pc.setLocalDescription(offer)
return web.Response(
content_type="application/json",
text=json.dumps(
{"sdp": pc.localDescription.sdp, "type": pc.localDescription.type}
),
)
async def answer_video(request):
params = await request.json()
answer = RTCSessionDescription(sdp=params["sdp"], type=params["type"])
print("Answer:", answer)
pc = pcs_rgb.get(request.remote, None)
if not pc is None:
await pc.setRemoteDescription(answer)
return web.Response(text="Ok")
async def index(request):
content = open(os.path.join(ROOT, "index.html"), "r").read()
return web.Response(content_type="text/html", text=content)
async def on_shutdown(app):
# close peer connections
coros = [pc.close() for remote, pc in pcs_rgb.items()]
await asyncio.gather(*coros)
pcs_rgb.clear()
if __name__ == "__main__":
parser = argparse.ArgumentParser(
description="WebRTC audio / video / data-channels demo"
)
parser.add_argument("--cert-file", help="SSL certificate file (for HTTPS)", default="./certs/cert.pem")
parser.add_argument("--key-file", help="SSL key file (for HTTPS)", default="./certs/key.pem")
parser.add_argument(
"--host", default="0.0.0.0", help="Host for HTTP server (default: 0.0.0.0)"
)
parser.add_argument(
"--port", type=int, default=24000, help="Port for HTTP server (default: 8081)"
)
parser.add_argument("--verbose", "-v", action="count")
args = parser.parse_args()
# run event loop
loop = asyncio.get_event_loop()
app = web.Application()
app.on_shutdown.append(on_shutdown)
app.router.add_get("/", index)
app.router.add_post("/offer_video", offer_video)
app.router.add_post("/answer_video", answer_video)
ssl_context = ssl.SSLContext()
ssl_context.load_cert_chain(args.cert_file, args.key_file)
web.run_app(
app, access_log=None, host=args.host, port=args.port, ssl_context=ssl_context
)

@ -0,0 +1,11 @@
#!/bin/bash
CURDIRNAME=${PWD##*/}
docker run \
-it \
--rm \
-v $(pwd):/wd \
--net host \
--name ${USER}_${CURDIRNAME} \
${USER}_${CURDIRNAME} \
python main.py
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