thejasonfisher

Gstreamer Pipeline Samples

Table of Contents:

• Gstreamer Pipeline Samples
  • Tips for Debug
  • Video
    • display test video
    • record to file
• record and display at the same time(queue)

gsoykan

import cv2
import numpy as np
import torch

# Create a random torch tensor
tensor = torch.randn(3, 256, 256)

# Convert the tensor to a numpy array
numpy_image = tensor.numpy()

thejasonfisher

from contextlib import contextmanager
import numpy as np
import torch
from torch import Tensor, ByteTensor
import torch.nn.functional as F
from torch.autograd import Variable
import pycuda.driver
from pycuda.gl import graphics_map_flags
from glumpy import app, gloo, gl

bharath5673

Steps to install Deepstream-6.1 on Ubuntu_20.04-LTS, Run YOLO and YOLO.py

***Needed Ubuntu-20 and nvidia driver 510

Step 1: Install Cuda 11.6

wget https://developer.download.nvidia.com/compute/cuda/repos/ubuntu2004/x86_64/cuda-ubuntu2004.pin
sudo mv cuda-ubuntu2004.pin /etc/apt/preferences.d/cuda-repository-pin-60

keckj

import sys

from cuda import cudart

import numpy as np
import cupy as cp

import pyrr
import glfw

pabloko

update: https://framagit.org/tytan652/ffmpeg-ndi-patch use this patch. this gist is outdated

ffmpeg 4.4 with NDI

This patch adds libndi_newtek to last ffmpeg version, and fix timecode related issues that produces wrong PTS/DTS timestamps that seems to happen with newer NDI SDKs.

changes

• Updated libndi methods by newer versions (v2/v3)

thepycoder

[application]
enable-perf-measurement=1
perf-measurement-interval-sec=1

[source0]
enable=1
#Type - 1=CameraV4L2 2=URI 3=MultiURI 4=RTSP
type=3
uri=file://../data/towncentre.mp4
num-sources=1

J-Rojas

#!/bin/bash

cwd="$(realpath $( cd "$(dirname "$0")" ; pwd -P )/.. )"

cd $cwd

function usage() {
   echo "usage: [PATH FOR BUILD FOLDER] [GSTREAMER VERSION] [INSTALLATION_PATH] [PATH TO NVIDIA LIBRARIES]"
}

frank-dspeed

Linux Video

ffmpeg - is the default standard for video operations of all kind

drawtext filter

If you just want to update some text on the screen the easiest method is to use the drawtext filter with the textfile and reload options.

ffmpeg -i input -vf "drawtext=textfile=songs.txt:reload=1" output songs.txt will be reloaded once per frame. Be sure to update it atomically, or it may be read partially, or even fail.

overlay filter

EONRaider

#!/usr/bin/env python3
# https://gist.github.com/EONRaider/3b7a8ca433538dc52b09099c0ea92745
__author__ = 'EONRaider, keybase.io/eonraider'

import fcntl
import socket
import struct

try:
    from netifaces import AF_INET, ifaddresses