Download or read book Learn to Produce Videos with FFmpeg written by Jan Lee Ozer and published by Doceo Publishing. This book was released on 2017-06 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt: Walks readers through creating single and adaptive bitrate videos in FFmpeg and Apple's HTTP Live Streaming Tools

Download or read book Learn to Produce Videos with Ffmpeg written by Jan Ozer and published by Doceo Publishing. This book was released on 2017-08 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt: Learn to encode in H.264, HEVC, VP9, and AV1 formats for single file and adaptive delivery via HLS and DASH. Learn commands for a comprehensive set of configuration options (data rate, resolution, I-frame, B-frame) plus how these options impact encoding time and quality. Learn the why behind the how.

Download or read book FFMPEG From Zero to Hero written by Nick Ferrando and published by Wondermark Books. This book was released on 2020-08-18 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt: If you ever wondered how the developers of YouTube or Vimeo cope with billions of video uploads or how Netflix processes its catalogue at scale or, again, if you want to discover how to create and develop your own video platform, you may want to know more about FFMPEG. FFMPEG stands for “Fast-Forward-Moving-Picture-Expert Group”. This book contains a basic guide, a basic dictionary and many working formulas along with step-by-step syntax explanations of FFMPEG and a lot of other softwares for audio, video, image and subtitles processing. This book describes and explains also several tools that works along with FFMPEG, such as ImageMagick, Bento4, GhostScript, WebP Tools amongst others. The book contains also a dedicated step-by-step guide for FFMPEG's various installation options for MacOS X, Ubuntu and Windows platforms. Whether you are at the very beginning or an experienced developer, you will find several effective ways to execute many tasks for your audio/video/streaming needings. Contents • Acknowledgments • What is FFMPEG • Basic Definitions • Basic FFMPEG Workflow • How to Install FFMPEG • Basic Syntax Concepts of FFMPEG • Keyframes: Basic Concepts • Metadata and FFPROBE • Extracting Metadata with FFMPEG • Extracting Specific Streams • Extracting Audio Only from a Video • Extracting Video Only without Audio • Cutting Videos with FFMPEG • Producing h264/AVC videos • Different h264 encoding approaches • Producing h265/HEVC Videos • h266 - Versatile Video Codec (VVC) • Producing VP8 Videos • Producing VP9 videos • The OPUS Audio Codec • The FLAC Audio Codec • Producing AV1 Video • Netflix/Intel AV1 SVT-AV1 • AV1AN - All-in-one Tool • Streaming on Social Media with RTMP • Pre-Process Files in Batch • Re-Stream to multiple destinations • Concatenate Video Playlists • Producing HLS with FFMPEG and Bento4 • Producing DASH Streaming • Batch Processing for DASH and HLS Delivery • Batch Processing for HLS Only • Streaming Mp4 Files - The Moov Atom • Producing Adaptive WebM DASH Streaming • Scaling with FFMPEG • Overlay Images on Video • Overlay Images on Pictures • ImageMagick • Batch Process - Overlay to Multiple Images with Same Size • Batch Process - Overlay to Multiple Images with Different Sizes • Batch Resize Images • Batch Resize, Lower Quality and Convert Pictures • Convert Images to WebP • Remove Black Bars/Borders from Images and Trim • Batch Convert Pictures from RAW to JPEG format • Ghostscript for PDF processing • Extract Images from PDF • Generate Waveforms from Audio • Generate Animated Video from Audio • Create Animated Slides from Still Pictures • Extract Images from Video • Extract Audio from Video • Replace Audio of a Video • Batch Convert Audio Files to a specific format • Batch Convert Audio Files in Multiple Formats • Audio Loudness Normalization for TV Broadcast • Audio Loudness Normalization for Amazon Alexa and Google Assistant (Audiobooks/Podcasts) • Batch Audio Loudness Normalization for Amazon Alexa (AudioBooks/Podcasts) • De-Interlacing Filter - 13 FFMPEG solutions • How to make a high-quality GIF from a video • How to add an Overlay Banner and burn subtitles onto a video • How to extract VTT files (Web Video Text Track) and burn it onto a video as a subtitle • Automatic Transcriptions and Subtitles • Additional Notes and Syntax Definitions • Bibliography • Recommended Resources • About Me • Alphabetical Index Features • Over 80 chapters • Over 200 tested formulas and syntax explanations • Navigable Index • Tested for MacOS X, Ubuntu 18.04, Ubuntu 20.04 and Windows 10 platforms FAQ Which audience this book is intended for? This book is designed to address anyone who is just above the “raw beginner” level. This book will explain some basic process such as entering commands and execute simple code instructions using a Command-Line- Interface (CLI) instead of using high resource-intensive Graphical User Interfaces (GUI). You may review some basic definitions and concepts, or skip directly to the working Formulas, as you'll prefer. It is a book intended for both the beginner and the expert developer, but suitable also for creatives, social media managers, webmasters, writers, musicians, photographers, video-makers, audio engineers, archival and restoration technicians, radio/tv broadcasters, streamers, You-Tubers, etc. and anyone who needs to automate and speed-up the manipulation, editing and conversion of many different audio/video/pictures formats. What's the difference between this book and other basic books about FFMPEG? FFMPEG has a pretty steep learning curve and the books currently around lacks on the very basics terms and syntax explanations of the commands. This book contains lots of explanations about the basic BASH terms, which unleash the functionalities and the true power of FFMPEG. Also: this book will cover other great tools for content creation, editing and automation, such as ImageMagick, Bento4, Ghostscript along with scripting automation formulas and examples. Why a book on the basics of FFMPEG? Because FFMPEG can be powerful and can be very easy for anyone, once it's core technology and syntax are understood. If you would like to know more about a ultra-fast way that gives you for free the same results that you achieve with expensive subscription-based softwares for content creation/video editing/image or audio manipulation/conversion, then this is the right book for you.

Download or read book Video Encoding by the Numbers written by Jan Lee Ozer and published by Doceo Publishing. This book was released on 2016-12-28 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt: Video Encoding by the Numbers helps readers optimize the quality and efficiency of their streaming video by objectively detailing the impact of critical configuration options with industry-standard quality metrics like PSNR and SSIMplus. This takes the guesswork out of most encoding decisions and allows readers to achieve the optimal quality/data rate tradeoff. In addition, readers learn how to use tools like the Moscow University Video Quality Measurement tool, SSIMWave Quality of Experience Monitor, and FFmpeg to perform similar quality tests on their own videos. Because all videos encode differently, the tests detailed in the book involve eight different videos, including movie footage, animations, talking head footage, a music video, and Powerpoint and Camtasia-based videos. Readers first learn how to determine the ideal data rate for their videos at different resolutions. Then the book covers configuration options like bitrate control (CBR, VBR) that impacts quality and deliverability, and I-Frame, B-Frame, and reference frame decisions that impact quality and encoding time. The next three chapters focus on codec-specific configurations like Profile and preset for H.264 and HEVC, and the various configuration options available for Google's VP9. Next the book details how to choose an adaptive bitrate (ABR) technology, how to create an encoding ladder, and the most efficient ways to encode and package video into different ABR formats. Working off the groundbreaking work by Netflix and YouTube, the final chapter teaches the reader how a use per-title encoding with their own videos to create the ideal encoding ladder for each video in their library. Each chapter concludes with a section detailing how to configure the options discussed with FFmpeg, a preferred tool for high-volume video producers, including packaging into HLS and DASH formats (the latter with MP4Box). Overall readers learn how to optimally configure their encoding ladders and how to produce their videos with FFmpeg.

Download or read book Blender for Video Production Quick Start Guide written by Allan Brito and published by Packt Publishing Ltd. This book was released on 2018-11-30 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt: Use Blender to edit and produce video for YouTube or any other social media platforms Key FeaturesUse the Blender Video editing toolkit and UIMake 3D info-graphics and interactive video with the latest Blender toolkitPrepare a video production with live markings for trackingBook Description One of the critical components of any workflow related to video production is a reliable tool to create and edit media such as video and audio. In most cases, you will find video producers using software that can only cut and mount video in a "traditional" way. What if you could use a software that offers not only options to edit and cut video, but also create 3D content and animation? With Blender, you can make use of a fantastic set of tools to edit and cut video, and also produce 3D content that will enable you to take your productions to the next level. Do you want to take footage from a camera and cut or add sound and titles? This book will show you how Blender can do that for you! You will learn to add 3D virtual objects to the same footage that will help you to create a full 3D environment. Using some camera tricks, you can even turn Blender into a powerful 2.5D animation software to create compelling infographics to produce educational, marketing, and instructional videos. You will also learn how to work with motion tracking to mix live-action footage with virtual objects. You will then learn how to use the video editing capabilities of Blender and match 3D content to your project for YouTube or any other media. Toward the end of the book, you will export the project to YouTube using optimal settings for the best performance in the platform. What you will learnImport video and audio footage to BlenderUse the Video Sequencer Editor to manipulate footagePrepare a project related to video in BlenderCut and reorganize video footage in BlenderCreate animations and add voiceover and sound to videoBuild infographics based on 3D contentBlend 3D content with live-action footageExport video for YouTube using optimal settingsWho this book is for Anyone trying to produce content based on video for platforms like YouTube. Those artists will need a software to cut and edit video footage or make small intro clips, animations, or info graphics for video.

Download or read book Premiere Pro CC written by Jan Ozer and published by Peachpit Press. This book was released on 2013-06-10 with total page 481 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this clear and straightforward guide, digital video veteran Jan Ozer gives beginning and intermediate video editors just what they need to know on Adobe Premiere Pro CC. Tasked-based, step-by-step instructions and loads of visuals and time-saving tips help professionals and newcomers alike quickly find and learn tasks specific to their needs, benefiting from the award-winning Visual QuickStart style. Topics covered include essential editing tasks and media-management strategies, transitions, effects and filters, rendering options, and optimal editing and production strategies for streaming delivery of HD source content. It includes coverage of all the new features in Premiere Pro CC, such as working with closed captions, enhanced multicam workflows, and significantly improved audio effects.

Download or read book Digital Video Hacks written by Joshua Paul and published by "O'Reilly Media, Inc.". This book was released on 2005-05-27 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the dawn of film, novices and experts have used quick-and-dirty workarounds and audiovisual tricks to improve their motion pictures, from home movies to feature films. Today, the tools have certainly changed, as have the quality and scope of the results. With digital video, the hacking possibilities are now limitless, for both amateurs and professional artists. From acquiring footage, mixing, editing, and adding effects to final distribution, Digital Video Hacks provides unique tips, tools, and techniques for every stage of video production. You'll learn how to: Get your projects started right using creative preparation tools and techniques,from making your own steadicam, boom, or dolly to effective storyboarding, timecoding, and tape labeling Troubleshoot common shooting problems, including using stop-motion and time-lapse techniques, lighting effects, colored screens and gels, and household objects to establish mood or otherwise wow an audience Create stunning visual effects, such as satellite zooming, surreal scenes, Matrix-like bullet-time, and green screen illusions Fool your audience with audio tricks, replacing flubbed dialogue, smoothing over cuts, and covering missing audio with room tone Add professional features with post-production tricks, including color correction, soundtrack cleanup, opening sequences, and DVD bookmarks Distribute final content in a variety of creative ways, from exporting to basic videotape or DVD to streaming over the internet or even via cell phone Use the web to provide interactivity and dynamic content, attend a remote conference, or vlog your life. Whether you're looking for a new technique to include in your next project, a solution to a common problem, or just a little inspiration, this book reintroduces you to the digital video you only thought you knew.

Download or read book FFMPEG Quick Hacks written by V Subhash and published by . This book was released on 2020-05-22 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt: Quickly learn to use the free command-line video-editing utility FFmpeg - cut, copy, record, edit, tag, convert, rotate, flip, resize, crop, combine, compose, blur, sharpen, smoothen, side-by-side split, PIP inset, fade in/out... Also learn to use subtitles, sound, images, animations and metadata with video.FFMPEG Quick Hacks is a novel attempt to bring this great software program to the masses. The book is very easy to understand and uses powerful learning cues to make concepts clear and interesting to the reader. It is neatly formatted and richly illustrated with screenshots and code. The book is also useful as a good desk-side reference. Several videos created for the book are available at the author's website: http: //www.vsubhash.com/ffmpeg-quick-hacks-book.htmlWhat to expect from FFMPEG Quick Hacks A simple introduction to FFmpeg and related multimedia concepts - containers, streams, channels, maps, metadata... Learn to convert from one format to another - video-to-video, video-to-audio, video-to-image, image-to-video, audio-to-video... Get ready to edit video - cut videos with and without re-encoding, appending (concatenating) videos, mix audio and video... Go bonkers with filters - rotate, flip, crop, side-by-side, inset, remove logo, blur, smoothen/sharpen, draw box, draw text, apply transitions, speed up, slow down... Go all in with audio - convert, change volume, mix channels, detect silence, display waveforms... Get subversive with subtitles - place them anywhere on the screen, use custom fonts and colors, specify languages, burn them into the video... Get mental with metadata - add MP3 tags including album art, set global and stream-specific metadata, remove metadata... Learn several useful tips that makes tough tasks easy What not to expect in FFMPEG Quick Hacks Information about FFStream Information about FFmpeg, the software library High-level concepts and in-depth information on multimedia formats About FFmpeg FFmpeg is a free and open-source (FOSS) software program for Linux, Mac and Windows. It is a command-line utility accessible to anyone. It does not require a lot of multimedia expertise to put it to good use. Most users find it versatile and sophisticated for their needs.

Download or read book FFmpeg Basics written by Frantisek Korbel and published by . This book was released on 2012-12-28 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book will try to make you familiar with FFmpeg tools that are used by Facebook, Google and many other companies. You will learn how to: scale, pad, crop, flip, rotate, blur, sharpen and denoise video speed up or slow down audio and video create sounds with mathematical expressions generate refrain of winter song Jingle Bells let the computer to read the text with selected voice display and record input from your webcam record input from microphone or send it to loudspeakers convert video to images and images to video add static or dynamic text on video add, edit or delete file metadata preview modified input in 2, 3 or 4 windows include a logo or provide Picture in Picture simplify repeated tasks with batch jobs display input from 2 webcams in one window set the bitrate, frame rate, maximum file size and related options display FFmpeg help and information about its codecs, formats, protocols, etc. use various filters in filterchains and filtergraphs encode subtitles directly to the video stream join various file formats, modify streams and modify audio channels monetize uploads on video sharing websites and much more Book is printed in full color, contains over 100 tables and over 150 images including various diagrams and can be used both like a tutorial and reference.The brief content: FFmpeg Fundamentals Displaying Help and Features Bit Rate, Frame Rate and File Size Resizing and Scaling Video Cropping Video Padding Video Flipping and Rotating Video Blur, Sharpen and Other Denoising Overlay - Picture in Picture Adding Text on Video Conversion Between Formats Time Operations Mathematical Functions Metadata and Subtitles Image Processing Digital Audio Presets for Codecs Interlaced Video FFmpeg Components and Projects Microphone and Webcam Batch Files Color Corrections Advanced Techniques Video on Web Debugging and Tests

Download or read book Video Compression for Multimedia written by Jan Ozer and published by Academic Press. This book was released on 1995 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book explains the rules and provides the tools for creating high quality digital video on a PC. Not only does it explain how, it also shows you how on the CD-ROM included with the book. The author has created a video compression sampler that allows users to view samples of different types of filming techniques and provides a set of compression and decompression utilities.

Download or read book Learn C the Hard Way written by Zed A. Shaw and published by Addison-Wesley Professional. This book was released on 2015-08-10 with total page 931 pages. Available in PDF, EPUB and Kindle. Book excerpt: You Will Learn C! Zed Shaw has crafted the perfect course for the beginning C programmer eager to advance their skills in any language. Follow it and you will learn the many skills early and junior programmers need to succeed–just like the hundreds of thousands of programmers Zed has taught to date! You bring discipline, commitment, persistence, and experience with any programming language; the author supplies everything else. In Learn C the Hard Way, you’ll learn C by working through 52 brilliantly crafted exercises. Watch Zed Shaw’s teaching video and read the exercise. Type his code precisely. (No copying and pasting!) Fix your mistakes. Watch the programs run. As you do, you’ll learn what good, modern C programs look like; how to think more effectively about code; and how to find and fix mistakes far more efficiently. Most importantly, you’ll master rigorous defensive programming techniques, so you can use any language to create software that protects itself from malicious activity and defects. Through practical projects you’ll apply what you learn to build confidence in your new skills. Shaw teaches the key skills you need to start writing excellent C software, including Setting up a C environment Basic syntax and idioms Compilation, make files, and linkers Operators, variables, and data types Program control Arrays and strings Functions, pointers, and structs Memory allocation I/O and files Libraries Data structures, including linked lists, sort, and search Stacks and queues Debugging, defensive coding, and automated testing Fixing stack overflows, illegal memory access, and more Breaking and hacking your own C code It’ll Be Hard at First. But Soon, You’ll Just Get It–And That Will Feel Great! This tutorial will reward you for every minute you put into it. Soon, you’ll know one of the world’s most powerful programming languages. You’ll be a C programmer.

Download or read book Video Compression for Flash Apple Devices and Html5 written by Jan Ozer and published by . This book was released on 2011-08-01 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt: Video Compression for Flash, Apple Devices and HTML5: Sorenson Media Edition, is a professional reference for producers seeking to distribute video over the Internet and to mobile devices--particularly Apple iDevices. Unlike the retail edition, this version contains specific instruction for using Sorenson Squeeze, Sorenson 360 and Squeeze Server and is designed for those using those tools. Content included in the retail edition that are not included in the Sorenson Media edition include chapters on live production and choosing an online video platforms, as well as instruction on encoding tools like Telestream Episode, the Adobe Media Encoder and Apple Compressor. In this book, you will learn: - The fundamentals of video streaming and compression, including adaptive streaming- H.264 encoding parameters using Sorenson Squeeze- The resolutions and data rates used by US and European media and prominent B2B and B2C sites, so you can configure your streaming video accordingly - How to encode for iTunes distribution to iDevices from iPods to the iPad 2- The critical differences between the key adaptive streaming technologies--including HTTP Live Streaming, Dynamic Streaming and Smooth Streaming--and how to encode for distribution via these techniques- How to accelerate video encoding on multiple-core workstations and LAN clusters- Which streaming file analysis tools provide the most important feedback. - How to create and configure Squeeze presets for producing H.264, VP6, WebM and VC-1 formats- How to upload, encode, manage your content and configure your player in Sorenson 360.- How to operate Squeeze Server, including creating presets, setting up watch folders, managing queues and an introduction to the programming API. About the Author: Jan Ozer has produced and encoded video since the CD-ROM days (1992) and has taught courses in video and streaming production since 1994--most recently at Streaming Media Seminars in New York, San Jose, Los Angeles and London, and for private organizations like Cisco, Lockheed and Johns Hopkins University. Jan was named a Streaming Media All Star in 2010. Jan has written or co-authored 14 books on digital video related topics, including the Hands-On Guide to Flash Video: Web Video and Flash Media Server with Stefan Richter.

Download or read book A Primer on Scientific Programming with Python written by Hans Petter Langtangen and published by Springer. This book was released on 2016-07-28 with total page 942 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book serves as a first introduction to computer programming of scientific applications, using the high-level Python language. The exposition is example and problem-oriented, where the applications are taken from mathematics, numerical calculus, statistics, physics, biology and finance. The book teaches "Matlab-style" and procedural programming as well as object-oriented programming. High school mathematics is a required background and it is advantageous to study classical and numerical one-variable calculus in parallel with reading this book. Besides learning how to program computers, the reader will also learn how to solve mathematical problems, arising in various branches of science and engineering, with the aid of numerical methods and programming. By blending programming, mathematics and scientific applications, the book lays a solid foundation for practicing computational science. From the reviews: Langtangen ... does an excellent job of introducing programming as a set of skills in problem solving. He guides the reader into thinking properly about producing program logic and data structures for modeling real-world problems using objects and functions and embracing the object-oriented paradigm. ... Summing Up: Highly recommended. F. H. Wild III, Choice, Vol. 47 (8), April 2010 Those of us who have learned scientific programming in Python ‘on the streets’ could be a little jealous of students who have the opportunity to take a course out of Langtangen’s Primer.” John D. Cook, The Mathematical Association of America, September 2011 This book goes through Python in particular, and programming in general, via tasks that scientists will likely perform. It contains valuable information for students new to scientific computing and would be the perfect bridge between an introduction to programming and an advanced course on numerical methods or computational science. Alex Small, IEEE, CiSE Vol. 14 (2), March /April 2012 “This fourth edition is a wonderful, inclusive textbook that covers pretty much everything one needs to know to go from zero to fairly sophisticated scientific programming in Python...” Joan Horvath, Computing Reviews, March 2015

Download or read book FFmpeg for Beginners written by John Riselvato and published by . This book was released on 2020-04-22 with total page 213 pages. Available in PDF, EPUB and Kindle. Book excerpt: Master the art of editing audio and video from the command line with FFmpeg! This book is the ultimate programmer's guide for users of all levels! Inside you'll find over 110 different problems with scripts and images that easily explain each question. Readers at any level will gracefully learn FFmpeg to the upper-intermedia levels in no time. Inside You'll Learn Using a Green screen Frei0r Filters Streaming to Youtube Streaming Webcam Using Filters with Streaming Codecs, Formats, Map, chains Coverting Ogg, FLAC, WAV, MP3 Coverting MOV, MKV, AVI, FLV, WebM, MP4, GIF Trimming from start and end Volume, Crossfade, Normalization Echo, Tempo, Pitch, Sample Rate Generating Text to Speed and Audio Tone Low-pass and High-pass filters Reducing File Size Segmenting and Concat Blending Color Normalization Color Balance Hue, Saturation, Inverting RGB shift Vignette Removing Colors Generating Color Pallets Multiple Sharpening and blurring (unsharp, smartblur, Gaussian blur, Box Blur) Pixelation Speeding up, slowing down, reversing video Cropping video Changing Frame Rate Change the resolution of Video Applying Quantization Removing Duplicate Frames Stacking videos horizontally and vertically Flipping Video horizontally and vertically Rotating Video Adding subtitles, extracting subtitles, text editing Adding watermarks Creating slideshows Extracting image frames Generating Solid Colored videos Datamosh / Glitching Video Fades Adding Noise and Static Randomizing Frames Common Errors and so much more! Previously published as The FFmpeg Bible

Download or read book Learning Web Design written by Jennifer Robbins and published by "O'Reilly Media, Inc.". This book was released on 2018-05-11 with total page 1096 pages. Available in PDF, EPUB and Kindle. Book excerpt: Do you want to build web pages but have no prior experience? This friendly guide is the perfect place to start. You’ll begin at square one, learning how the web and web pages work, and then steadily build from there. By the end of the book, you’ll have the skills to create a simple site with multicolumn pages that adapt for mobile devices. Each chapter provides exercises to help you learn various techniques and short quizzes to make sure you understand key concepts. This thoroughly revised edition is ideal for students and professionals of all backgrounds and skill levels. It is simple and clear enough for beginners, yet thorough enough to be a useful reference for experienced developers keeping their skills up to date. Build HTML pages with text, links, images, tables, and forms Use style sheets (CSS) for colors, backgrounds, formatting text, page layout, and even simple animation effects Learn how JavaScript works and why the language is so important in web design Create and optimize web images so they’ll download as quickly as possible NEW! Use CSS Flexbox and Grid for sophisticated and flexible page layout NEW! Learn the ins and outs of Responsive Web Design to make web pages look great on all devices NEW! Become familiar with the command line, Git, and other tools in the modern web developer’s toolkit NEW! Get to know the super-powers of SVG graphics

Download or read book Tcl Tk in a Nutshell written by Paul Raines and published by "O'Reilly Media, Inc.". This book was released on 1999-03-25 with total page 458 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Tcl language and Tk graphical toolkit are simple and powerful building blocks for custom applications. The Tcl/Tk combination is increasingly popular because it lets you produce sophisticated graphical interfaces with a few easy commands, develop and change scripts quickly, and conveniently tie together existing utilities or programming libraries.One of the attractive features of Tcl/Tk is the wide variety of commands, many offering a wealth of options. Most of the things you'd like to do have been anticipated by the language's creator, John Ousterhout, or one of the developers of Tcl/Tk's many powerful extensions. Thus, you'll find that a command or option probably exists to provide just what you need.And that's why it's valuable to have a quick reference that briefly describes every command and option in the core Tcl/Tk distribution as well as the most popular extensions. Keep this book on your desk as you write scripts, and you'll be able to find almost instantly the particular option you need.Most chapters consist of alphabetical listings. Since Tk and mega-widget packages break down commands by widget, the chapters on these topics are organized by widget along with a section of core commands where appropriate. Contents include: Core Tcl and Tk commands and Tk widgets C interface (prototypes) Expect [incr Tcl] and [incr Tk] Tix TclX BLT Oratcl, SybTcl, and Tclodbc

Download or read book Quick Start Guide to FFmpeg written by V. Subhash and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Create, edit, modify and convert multimedia files using FFmpeg, the most versatile open source audio and video processing tool available for Linux, Mac and Windows users. After reading this book, you will be able to work with video and audio files, images, text, animations, fonts, subtitles and metadata like a pro. It begins with a simple introduction to FFmpeg executables - ffmpeg, ffprobe and ffplay, and explains how you can use them to process multimedia containers, streams, audio channels, maps and metadata. It then describes how you can easily edit, enhance and convert audio, video, image and text files. There are dedicated chapters for filters, audio, subtitles and metadata, as well as FFmpeg tips and tricks. Sample lists of FFmpeg filters, encoders, decoders, formats and codecs are also available as appendices. Quick Start Guide to FFmpeg is for anyone who needs to edit or process multimedia files including studio professionals, broadcast personnel, content creators, podcasters, librarians, archivists and webmasters. It will be indispensable for those wanting to process a variety of multimedia files from the command line and inside shell scripts or custom-built software. You will: Convert from one format to another e.g. video-to-video, video-to-audio, video-to-image, image-to-video, video-to-animation, animation-to-video, text-to-audio, text-to-video Edit video files by cutting them with and without re-encoding, appending, resizing, changing frame rate and aspect ratio, mixing in audio Use filters to rotate, flip, crop, overlay (side-by-side or inset), remove logos, blur, smooth and sharpen, apply transitions as well as speed up or down playback Edit audio files by changing, normalizing or compressing volume, mixing and splitting channels and detecting silence. Also, learn to generate waveforms as video or images Add subtitles, place them anywhere on the screen, use custom fonts and colors, and use different languages Learn how to import, export and remove metadata, add MP3 tags (including album art), set global and stream-specific metadata, export and remove metadata Automate your FFmpeg tasks.