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Standard FFmpeg How-to

Table of Contents

* Generic Syntax

* Main Options

* Encoding :

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systemd for Administrators

Chronological list of the "systemd for Administrators" series published on 0pointer.net/blog:

• Part I: Verifying Bootup
• Part II: Which Service Owns Which Processes?
• Part III: How Do I Convert A SysV Init Script Into A systemd Service File?
• Part IV: Killing Services
• Part V: The Three Levels of "Off"
• Part VI: Changing Roots

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name: "GoogleNet"

input: "data"
input_dim: 10
input_dim: 3
input_dim: 224
input_dim: 224

# hierarchy 1
# conv -> relu -> pool -> lrn

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I successfully created a project instantiating the HPS in Qsys. I added a parallel I/O in Qsys to allow the HPS to communicate with the LEDs via the HPS-to-FPGA lightweight bus. From there, I generated a preloader and U-boot along with the SOF file. I also wrote a simple C program that counts from 0-15 and sets the LEDs to that value every second. This encompasses about every step required to be able to communicate between the FPGA and HPS, so this is definitely a first step. I'm going to document what I did and how you guys can get this running.

I did this on Windows since that is my primary OS. Things are different on Linux, so you will have to figure them out if you try to do this on Linux.

File Structure

DE10NanoUART-FPGA

• Project containing everything necessary to get exactly what I have running
• HPS_FPGA_LED - Source code and makefile for the C program to blink LEDs
• hps_isw_handoff - ISW stands for Initial SoftWare so it is the first thing to be ran AFTER the hardcoded bootrom is loa

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Install and configure Sendmail on Ubuntu

This should help you get Sendmail installed with basic configuration on Ubuntu.

1. If sendmail isn't installed, install it: sudo apt-get install sendmail
2. Configure /etc/hosts file: nano /etc/hosts
3. Make sure the line looks like this: 127.0.0.1 localhost yourhostname
4. Run Sendmail's config and answer 'Y' to everything: sudo sendmailconfig
5. Restart apache sudo service apache2 restart

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Setup a Local Only SMTP Email Server (Linux, Unix, Mac)

1 - Point localhost.com to your machine

Most of programs will not accept an email using just @localhost as domain. So, edit /etc/hosts file to make the domain localhost.com point to your machine, including this content to the file:

127.0.0.1 localhost.com

2 - Install Postfix

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"""
http://stackoverflow.com/questions/28022432/receiving-rtp-packets-after-rtsp-setup
A demo python code that ..

1) Connects to an IP cam with RTSP
2) Draws RTP/NAL/H264 packets from the camera
3) Writes them to a file that can be read with any stock video player (say, mplayer, vlc & other ffmpeg based video-players)

Done for educative/demonstrative purposes, not for efficiency..!

vivicoco

/*
 * Simple MD5 implementation
 *
 * Compile with: gcc -o md5 -O3 -lm md5.c
 */
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdint.h>
 

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This was tested on a ThinkPad P70 laptop with an Intel integrated graphics and an NVIDIA GPU:

lspci | egrep 'VGA|3D'
00:02.0 VGA compatible controller: Intel Corporation Device 191b (rev 06)
01:00.0 VGA compatible controller: NVIDIA Corporation GM204GLM [Quadro M3000M] (rev a1)

A reason to use the integrated graphics for display is if installing the NVIDIA drivers causes the display to stop working properly. In my case, Ubuntu would get stuck in a login loop after installing the NVIDIA drivers. This happened regardless if I installed the drivers from the "Additional Drivers" tab in "System Settings" or the ppa:graphics-drivers/ppa in the command-line.

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/*
 *
 * Readig bitmap image informations.
 *
 */

#include <stdio.h>
#include <stdlib.h>
#include <string.h>