Jason Fisher thejasonfisher

## How to build ffmpeg with NDI IO
I was able to find a VERY QUICK AND DIRTY way to use the media-autobuild suite to compile my own 64-bit static FFmpeg for Windows with the NDI library.

Download it and extract to a place on your computer, and keep note of the path. I put it in "D:\ndi\media-autobuild_suite-master", so for the sake of these instructions when you see "<autobuild>", you need to substitute whatever path you've put it in.

During the initial setup process, request to use the static build and add whatever else you'd like to have in your ffmpeg, then pause what you're doing when the on-screen prompts tell you the ffmpeg_options file has been written, then go into <autobuild>\build\ffmpeg_options.txt and add somewhere a line with

Code:
--enable-libndi_newtek


## gstreamer_pipeline_samples.md

      
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                thejasonfisher
                / gstreamer_pipeline_samples.md
            
            
              Created
              August 2, 2023 18:39
                — forked from liviaerxin/gstreamer_pipeline_samples.md
            
              
                GStreamer Pipeline Samples #GStreamer
              
          
    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)


## build_and_install_gstreamer.sh
#!/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]"
}

## deepstream_basic.txt
[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

## espn-api-docs.md

      
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                thejasonfisher
                / espn-api-docs.md
            
            
              Created
              August 3, 2023 03:45
                — forked from akeaswaran/espn-api-docs.md
            
              
                ESPN hidden API Docs
              
          
    ESPN's hidden API endpoints

Football

College Football

Latest News: http://site.api.espn.com/apis/site/v2/sports/football/college-football/news
Latest Scores: http://site.api.espn.com/apis/site/v2/sports/football/college-football/scoreboard

  
## deepstream 6.1_ubuntu20.04 installation.md

      
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                thejasonfisher
                / deepstream 6.1_ubuntu20.04 installation.md
            
            
              Created
              August 30, 2023 06:14
                — forked from bharath5673/deepstream 6.1_ubuntu20.04 installation.md
            
              
                NVIDIA DeepStream SDK 6.1 / 6.0.1 / 6.0 configuration for YOLO-v5 & YOLO-v7 models 
              
          
    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


## Cheatsheet-CONTENT_STREAM_PRODUCTION.md

      
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                / Cheatsheet-CONTENT_STREAM_PRODUCTION.md
            
            
              Created
              August 30, 2023 23:39
                — forked from frank-dspeed/Cheatsheet-CONTENT_STREAM_PRODUCTION.md
            
              
                Cheatsheet Conten Production Streaming Linux Virtual Desktop Webcam
              
          
    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


## gist:38b6ba5dd89bcbeb76a97ee2dea39057
// Inside the file libavformat/utils.c is the routine "int av_read_frame(AVFormatContext *s, AVPacket *pkt)", one of the key routines
// used to play video streams through FFMPEG's libav. This routine does not handle the situation when a live stream terminates
// unexpectedly, such as the unplugging of a network connection, power loss to a camera, or other reasons an established connection
// would unexpectedly stop delivering packets.
// Below is the beginning of av_read_frame() up to and a bit past the three added lines necessary to support calling of the installed
// avformat interrupt callback. The conventional libav behavior is to call the avformat interrupt callback while establishing a new
// connection with a live stream. It is not called while the stream is playing, therefore no opportunity is provided to the client
// software to recognise unexpected stream termination.
// The three lines are added to the code pasted below. They should be easy to identify:

## video_udp.py
#!/usr/bin/env python

import cv2
import gi
import numpy as np

gi.require_version('Gst', '1.0')
from gi.repository import Gst


## get_ip_address.py
#!/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
	I was able to find a VERY QUICK AND DIRTY way to use the media-autobuild suite to compile my own 64-bit static FFmpeg for Windows with the NDI library.

	Download it and extract to a place on your computer, and keep note of the path. I put it in "D:\ndi\media-autobuild_suite-master", so for the sake of these instructions when you see "<autobuild>", you need to substitute whatever path you've put it in.

	During the initial setup process, request to use the static build and add whatever else you'd like to have in your ffmpeg, then pause what you're doing when the on-screen prompts tell you the ffmpeg_options file has been written, then go into <autobuild>\build\ffmpeg_options.txt and add somewhere a line with

	Code:
	--enable-libndi_newtek
	#!/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]"
	}
	[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
	// Inside the file libavformat/utils.c is the routine "int av_read_frame(AVFormatContext s, AVPacket pkt)", one of the key routines
	// used to play video streams through FFMPEG's libav. This routine does not handle the situation when a live stream terminates
	// unexpectedly, such as the unplugging of a network connection, power loss to a camera, or other reasons an established connection
	// would unexpectedly stop delivering packets.
	// Below is the beginning of av_read_frame() up to and a bit past the three added lines necessary to support calling of the installed
	// avformat interrupt callback. The conventional libav behavior is to call the avformat interrupt callback while establishing a new
	// connection with a live stream. It is not called while the stream is playing, therefore no opportunity is provided to the client
	// software to recognise unexpected stream termination.
	// The three lines are added to the code pasted below. They should be easy to identify:
	#!/usr/bin/env python

	import cv2
	import gi
	import numpy as np

	gi.require_version('Gst', '1.0')
	from gi.repository import Gst
	#!/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