- Download Desktop Video (driver) & Desktop Video SDK from https://www.blackmagicdesign.com/support/family/capture-and-playback
- Install Desktop Video (driver)
tar -xf Blackmagic_Desktop_Video_Linux_*.tar cd Blackmagic_Desktop_Video_Linux_*/deb/x86_64/ sudo dpkg -i desktopvideo_*.deb sudo apt-get install -f BlackmagicFirmwareUpdater status # if prompted to update, perform an update:
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# Copyright 2019 Google LLC. | |
# SPDX-License-Identifier: Apache-2.0 | |
# Author: Anton Mikhailov | |
turbo_colormap_data = [[0.18995,0.07176,0.23217],[0.19483,0.08339,0.26149],[0.19956,0.09498,0.29024],[0.20415,0.10652,0.31844],[0.20860,0.11802,0.34607],[0.21291,0.12947,0.37314],[0.21708,0.14087,0.39964],[0.22111,0.15223,0.42558],[0.22500,0.16354,0.45096],[0.22875,0.17481,0.47578],[0.23236,0.18603,0.50004],[0.23582,0.19720,0.52373],[0.23915,0.20833,0.54686],[0.24234,0.21941,0.56942],[0.24539,0.23044,0.59142],[0.24830,0.24143,0.61286],[0.25107,0.25237,0.63374],[0.25369,0.26327,0.65406],[0.25618,0.27412,0.67381],[0.25853,0.28492,0.69300],[0.26074,0.29568,0.71162],[0.26280,0.30639,0.72968],[0.26473,0.31706,0.74718],[0.26652,0.32768,0.76412],[0.26816,0.33825,0.78050],[0.26967,0.34878,0.79631],[0.27103,0.35926,0.81156],[0.27226,0.36970,0.82624],[0.27334,0.38008,0.84037],[0.27429,0.39043,0.85393],[0.27509,0.40072,0.86692],[0.27576,0.41097,0.87936],[0.27628,0.42118,0.89123],[0.27667,0.43134,0.90254],[0.27691,0.44145,0.913 |
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import Foundation | |
import UIKit | |
extension NSAttributedString { | |
// Get the number of lines an attributed string takes | |
func lineCount(atSize size: CGSize) -> Int { | |
let attrs = self.attributes(at: 0, effectiveRange: nil) | |
guard let font = (attrs[NSFontAttributeName] as? UIFont) else { | |
return 0 | |
} |
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# LVDB - LLOOGG Memory DB | |
# Copyriht (C) 2009 Salvatore Sanfilippo <antirez@gmail.com> | |
# All Rights Reserved | |
# TODO | |
# - cron with cleanup of timedout clients, automatic dump | |
# - the dump should use array startsearch to write it line by line | |
# and may just use gets to read element by element and load the whole state. | |
# - 'help','stopserver','saveandstopserver','save','load','reset','keys' commands. | |
# - ttl with milliseconds resolution 'ttl a 1000'. Check ttl in dump! |
FFmpeg and libav's playbook: Advanced encoding options with hardware-based acceleration, NVIDIA's NVENC and Intel's VAAPI-based encoder.
Hello guys,
Continuing from this guide to building ffmpeg and libav with NVENC and VAAPI enabled, this snippet will cover advanced options that you can use with ffmpeg and libav on both NVENC and VAAPI hardware-based encoders.
For ffmpeg:
- Geographically distributed, read-optimized, graph data store.
- Favors availability and efficiency over consistency.
- Developed by and used within Facebook (social graph).
- Link to paper.
- Facebook's servers directly accessed MySQL to read/write the social graph.
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// | |
// ViewController.m | |
// AVPlayerCaching | |
// | |
// Created by Anurag Mishra on 5/19/14. | |
// Sample code to demonstrate how to cache a remote audio file while streaming it with AVPlayer | |
// | |
#import "ViewController.h" | |
#import <AVFoundation/AVFoundation.h> |
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#!/bin/bash | |
basename=/mnt/warehouse/grouch_core/live/grouch_ramdisk | |
mkdir -p $basename/$1 | |
( | |
cd $basename/$1 | |
/usr/local/bin/ffmpeg -i rtmp://172.16.1.14/publish/$1 \ | |
-acodec copy \ | |
-f segment \ | |
-flags -global_header \ | |
-map 0 \ |
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function curlies(element) { | |
function smarten(text) { | |
return text | |
/* opening singles */ | |
.replace(/(^|[-\u2014\s(\["])'/g, "$1\u2018") | |
/* closing singles & apostrophes */ | |
.replace(/'/g, "\u2019") | |
/* opening doubles */ |
Ideas are cheap. Make a prototype, sketch a CLI session, draw a wireframe. Discuss around concrete examples, not hand-waving abstractions. Don't say you did something, provide a URL that proves it.
Nothing is real until it's being used by a real user. This doesn't mean you make a prototype in the morning and blog about it in the evening. It means you find one person you believe your product will help and try to get them to use it.