Codec Examples

Total Page:16

File Type:pdf, Size:1020Kb

Codec Examples Codec examples click here to download The following is a list of compression formats and related codecs. Contents. [hide]. 1 Audio compression formats. Non-compression; Lossless ​Audio compression formats · ​Lossy compression · ​Video compression formats. Video File Container Formats, Compression and Codecs – Oh My! you will notice that the file names end with, for example –.mov,.ogg,.wmv. The sample produces an Audio Component Plug-In codec only and includes the sandboxSafe www.doorway.ru entry for OS X and later. See the. Codec is a technical term for the "compression/decompression" of large Some codec examples are MP3, WMA, RealVideo, RealAudio, DivX. Opus, the open standard, high quality codec. Presentation Opus examples. Audio samples. These samples demonstrate the quality achievable with Opus. You could have a movie encoded with an mpeg-4 codec inside an avi container, for example, or a movie encoded with the Sorenson codec inside an mpeg package www.doorway.ru;. import www.doorway.ru;. import www.doorway.rueCodec;. The first codec is typically hardware-based, and it performs analog-to-digital and digital-to-analog conversion. A common example is a modem used for sending. The distinction between codecs and container file formats is often ambiguous. This is Example of popular containers are OGG, Matroska, AVI, MPEG. Codecs. Introduction. The Codec Engine (CE) product includes many examples. This article describes the layout of these examples, as well as details. Click on www.doorway.ru file links to hear the samples. www.doorway.ru files are mono, sampled at 8 kHz. Speech samples are at left, with different codec types across (columns). package www.doorway.ruecodec;. import www.doorway.ructVerticle Register codec for custom message. eventBus. Two collections of video test files are on www.doorway.ru site: www.doorway.ru and www.doorway.ru Another one is on the site. Apache Commons Codec (TM) software provides implementations of common encoders and decoders such as Base64, Hex, Phonetic and. This page provides Java code examples for www.doorway.ru The examples are extracted from open source Java projects from GitHub. The codecs module provides stream and file interfaces for transcoding data in your The examples below use this function to format the byte string to make it. High Performance, Feature-Rich Idiomatic Go codec/encoding library for binc, msgpack, cbor, For example, to encode "one-byte" as an indefinite length string. Voip Think - VoIP audio Codec example www.doorway.ru format to hear the different quality of the codec compression. Common Audio codecs are AAC and MP3. Different players accept different types of codecs. For example, YouTube live player accepts only. Additional examples and documentation can be found at the TI DSP However, TI includes some examples of how to use the onboard codec in the Code. In this article, we will listen to some examples of the Opus codec in action and have a closer look at the codec and how audio producers can. You can use the example codec implementation as a starting point. (If you're unfamiliar with Ruby, you can find an excellent quickstart guide at. The Text Codecs example demonstrates the principles behind importing and exporting text using codecs to ensure that characters are encoded properly. It may also refer to the (initially) most common voice codec used, Full Rate. —GSM. Progress is punctuated by cutscenes and codec, as well as encounters with. CHAPTER 19 AUDIO CODEC CONTROLLER An audio codec device can digitize an analog audio signal and convert the digitized signal back to analog format. Download · Sign in · Encode a string using a codec. import codecs. print www.doorway.ru("abc", "base64") Related Examples. Decode a string using a codec. An audio codec device can digitize an analog audio signal and convert the digitized signal back to analog format. The DE1 board contains a Wolfson WM Codec 2 is an open source speech codec designed for communications quality speech The AMBE samples were generated using a DV-Dongle, a USB device. import www.doorway.ru8. TABLE example(id int PRIMARY KEY, t tuple) www.doorway.rue("INSERT. Cisco Unified Border Element Configuration Guide -Introduction to Codecs. CUBE uses codecs to compress digital voice samples to reduce bandwidth usage. The Video Codec SDK includes a complete set of high-performance tools, samples and documentation for. This example Scala source code file (www.doorway.ru) is included in my "Source Code Warehouse" project. The intent of this project is to help you more easily find. 1 Description; 2 Codec Options; 3 Decoders; 4 Video Decoders. hevc; libfdk_aac. Options; Examples Options; Examples. And all in all I believe that's a really sad example of where wrong import codecs class basestring(object): def encode(self, encoding. Typical examples of codecs include audio decoders, video encoders, and effects. In this mode, the codec accepts one frame of data from its input and converts. Abstract This document gives examples of Session Description Protocol (SDP) offer/answer exchanges. Examples include codec negotiation and selection, hold. Refer to Codec Base Classes for more information on codec error handling. .. Python strings, buffer objects and memory mapped files are examples of objects. Source Code Example. The example below shows the sample for Base64 class implementation and usage. www.doorway.ru The purpose of codecs is to reduce the size of digital audio samples and video frames in order to speed up transmission and save storage. Explaining the difference between codecs and containers is relatively Your average Blu-ray, for example, can exceed 40 gigabytes, and that. Whether we know it or not, we use codecs every day. In fact, the most commonly known codec examples are MP3, WMA, RealVideo, RealAudio, DivX and XviD. The CSV codec is different to other codecs in that it produces an iterable of odin. A simple example of a customised www.doorway.rut and www.doorway.ru_codec. Titanium Mobile Intro Series: Buffer and Codec. By Appcelerator Codec, methods to convert to and from binary data. These two Examples. Breakout board for Wolfson WM Audio Codec. The on-board Audio Codec WM provides stereo line and mono WM Audio Codec Examples. How to Build a Speedy Custom Compression Codec for Hadoop . streams (see our examples OStreamDelegatingCompressorStream and. For example, when you rip a song from an audio CD to your computer, the Player uses the Windows Media Audio codec by default to compress the song into a. Codecs and containers are a perfect example of this. They are frequently and mistakenly used interchangeably. Let's clear up the confusion. Abstract. In this chapter we describe several image codec designs in some detail. Our purpose is not to present the current state of the art, for that changes. MediaFormat format = www.doorway.ruputFormat(bufferId); ShortBuffer samples = www.doorway.ru(www.doorway.ruOrder()).asShortBuffer(); int numChannels. Definition of Codec. Software or device that controls a digital media file (such as a song or a video), for example encrypting, compressing. audio codec. The audio part for the video must also be encoded, usually treated and stored separately from the video. (examples: MP3, AAC. Examples. use tokio_io::codec::length_delimited::Builder; Builder::new().length_field_offset(0).length_field_length(2).length_adjustment(0).num_skip(0). For example, one could wrap an www.doorway.ru in a www.doorway.ru go-codec will never buffer during reading or writing; buffering if necessary is the job of the caller. From this rich and expanding palette you can select the best fitting codec solution for your specific application needs. Please listen to some of our audio samples. There a many Codec formats some for different uses. As technology improves new codec are created. For example, raw uncompressed PCM audio ( kHz. The codec works, but it is still missing the chunked encoding part. Because each byte is encoded separately we can fall back to the. a codec for ➜ High quality example sentences ✓ This will include a codec for audible audiobooks. Translations in context of "codec" in English- Russian from Reverso Context: codec pack. Quite often, the codec still spends bits on the extra precision, but little or no extra quality is The following settings are examples of different encoding option. VP9, the WebM Project's next-generation open video codec, became available on June 17, This page summarizes post-release VP9. This document describes the changes to AVI codec support in NI Vision For example, IMAQ AVI2 Get Codec www.doorway.ru has taken the place of. First, I'll cover the basics of container formats, then move on to codecs. At the end, I'll present several usage examples, with a brief discussion of. 10 Recommendations for Codec Selection and Management by chris lacinak . A good example of behind the scenes compression is Run Length Encoding. Player Plugins & Code Examples Edmunt Pienkowsky's bundle of Speex for Windows, including an ACM codec that will get Speex to work in NetMeeting. Codecs are used to convert an analog voice signal to digitally encoded version. As an example, a Cisco ATA supports these codecs. Examples of popular codecs include h which is often used for digital videos, MPEG2 which is often used for DVD media and TV. Video Conferencing – Hard Codec Versus Soft Codec conferencing platform of choice that the caller needs, for example, Skype for Business. This page provides Java code examples for www.doorway.ru The examples are extracted from open source Java projects from. Example: mp3. Description: The audio codec to use. The default codec depends on the video codec and format selected. Note that MP3 audio in a MP4. For example, it can compress audio to a low bit rate for streaming over a network with limited bandwidth, or for rendering on portable devices.
Recommended publications
  • Space Application Development Board
    Space Application Development Board The Space Application Development Board (SADB-C6727B) enables developers to implement systems using standard and custom algorithms on processor hardware similar to what would be deployed for space in a fully radiation hardened (rad-hard) design. The SADB-C6727B is devised to be similar to a space qualified rad-hardened system design using the TI SMV320C6727B-SP DSP and high-rel memories (SRAM, SDRAM, NOR FLASH) from Cobham. The VOCAL SADB- C6727B development board does not use these high reliability space qualified components but rather implements various common bus widths and memory types/speeds for algorithm development and performance evaluation. VOCAL Technologies, Ltd. www.vocal.com 520 Lee Entrance, Suite 202 Tel: (716) 688-4675 Buffalo, New York 14228 Fax: (716) 639-0713 Audio inputs are handled by a TI ADS1278 high speed multichannel analog-to-digital converter (ADC) which has a variant qualified for space operation. Audio outputs may be generated from digital signal Pulse Density Modulation (PDM) or Pulse Width Modulation (PWM) signals to avoid the need for a space qualified digital-to-analog converter (DAC) hardware or a traditional audio codec circuit. A commercial grade AIC3106 audio codec is provided for algorithm development and for comparison of audio performance to PDM/PWM generated audio signals. Digital microphones (PDM or I2S formats) can be sampled by the processor directly or by the AIC3106 audio codec (PDM format only). Digital audio inputs/outputs can also be connected to other processors (using the McASP signals directly). Both SRAM and SDRAM memories are supported via configuration resistors to allow for developing and benchmarking algorithms using either 16-bit wide or 32-bit wide busses (also via configuration resistors).
    [Show full text]
  • Concatenation of Compression Codecs – the Need for Objective Evaluations
    Concatenation of compression codecs – The need for objective evaluations C.J. Dalton (UKIB) In this article the Author considers, firstly, a hypothetical broadcast network in which compression equipments have replaced several existing functions – resulting in multiple-cascading. Secondly, he describes a similar network that has been optimized for compression technology. Picture-quality assessment methods – both conventional and new, fied for still-picture applications in the printing in- subjective and objective – are dustry and was adapted to motion video applica- discussed with the aim of providing tions, by encoding on a picture-by-picture basis. background information. Some Various proprietary versions of JPEG, with higher proposals are put forward for compression ratios, were introduced to reduce the objective evaluation together with storage requirements, and alternative systems based on Wavelets and Fractals have been imple- initial observations when concaten- mented. Due to the availability of integrated hard- ating (cascading) codecs of similar ware, motion JPEG is now widely used for off- and different types. and on-line editing, disc servers, slow-motion sys- tems, etc., but there is little standardization and few interfaces at the compressed level. The MPEG-1 compression standard was aimed at 1. Introduction progressively-scanned moving images and has been widely adopted for CD-ROM and similar ap- Bit-rate reduction (BRR) techniques – commonly plications; it has also found limited application for referred to as compression – are now firmly estab- broadcast video. The MPEG-2 system is specifi- lished in the latest generation of broadcast televi- cally targeted at the complete gamut of video sys- sion equipments. tems; for standard-definition television, the MP@ML codec – with compression ratios of 20:1 Original language: English Manuscript received 15/1/97.
    [Show full text]
  • Linux Sound Subsystem Documentation Release 4.13.0-Rc4+
    Linux Sound Subsystem Documentation Release 4.13.0-rc4+ The kernel development community Sep 05, 2017 CONTENTS 1 ALSA Kernel API Documentation 1 1.1 The ALSA Driver API ............................................ 1 1.2 Writing an ALSA Driver ........................................... 89 2 Designs and Implementations 145 2.1 Standard ALSA Control Names ...................................... 145 2.2 ALSA PCM channel-mapping API ..................................... 147 2.3 ALSA Compress-Offload API ........................................ 149 2.4 ALSA PCM Timestamping ......................................... 152 2.5 ALSA Jack Controls ............................................. 155 2.6 Tracepoints in ALSA ............................................ 156 2.7 Proc Files of ALSA Drivers ......................................... 158 2.8 Notes on Power-Saving Mode ....................................... 161 2.9 Notes on Kernel OSS-Emulation ..................................... 161 2.10 OSS Sequencer Emulation on ALSA ................................... 165 3 ALSA SoC Layer 171 3.1 ALSA SoC Layer Overview ......................................... 171 3.2 ASoC Codec Class Driver ......................................... 172 3.3 ASoC Digital Audio Interface (DAI) .................................... 174 3.4 Dynamic Audio Power Management for Portable Devices ...................... 175 3.5 ASoC Platform Driver ............................................ 180 3.6 ASoC Machine Driver ............................................ 181 3.7 Audio Pops
    [Show full text]
  • Ffmpeg Documentation Table of Contents
    ffmpeg Documentation Table of Contents 1 Synopsis 2 Description 3 Detailed description 3.1 Filtering 3.1.1 Simple filtergraphs 3.1.2 Complex filtergraphs 3.2 Stream copy 4 Stream selection 5 Options 5.1 Stream specifiers 5.2 Generic options 5.3 AVOptions 5.4 Main options 5.5 Video Options 5.6 Advanced Video options 5.7 Audio Options 5.8 Advanced Audio options 5.9 Subtitle options 5.10 Advanced Subtitle options 5.11 Advanced options 5.12 Preset files 6 Tips 7 Examples 7.1 Preset files 7.2 Video and Audio grabbing 7.3 X11 grabbing 7.4 Video and Audio file format conversion 8 Syntax 8.1 Quoting and escaping 8.1.1 Examples 8.2 Date 8.3 Time duration 8.3.1 Examples 8.4 Video size 8.5 Video rate 8.6 Ratio 8.7 Color 8.8 Channel Layout 9 Expression Evaluation 10 OpenCL Options 11 Codec Options 12 Decoders 13 Video Decoders 13.1 rawvideo 13.1.1 Options 14 Audio Decoders 14.1 ac3 14.1.1 AC-3 Decoder Options 14.2 ffwavesynth 14.3 libcelt 14.4 libgsm 14.5 libilbc 14.5.1 Options 14.6 libopencore-amrnb 14.7 libopencore-amrwb 14.8 libopus 15 Subtitles Decoders 15.1 dvdsub 15.1.1 Options 15.2 libzvbi-teletext 15.2.1 Options 16 Encoders 17 Audio Encoders 17.1 aac 17.1.1 Options 17.2 ac3 and ac3_fixed 17.2.1 AC-3 Metadata 17.2.1.1 Metadata Control Options 17.2.1.2 Downmix Levels 17.2.1.3 Audio Production Information 17.2.1.4 Other Metadata Options 17.2.2 Extended Bitstream Information 17.2.2.1 Extended Bitstream Information - Part 1 17.2.2.2 Extended Bitstream Information - Part 2 17.2.3 Other AC-3 Encoding Options 17.2.4 Floating-Point-Only AC-3 Encoding
    [Show full text]
  • Audio Codecs
    Audio Codecs [ AoIP | Leased Line | E1 ] Release date: July 2019 All rights reserved. Permission to reprint or electronically reproduce any document or graphic in whole or in part for any reason is prohibited unless prior written consent is obtained from AVT Audio Video Technolo- gies GmbH. This catalogue has been put together with the utmost digilence. However, no guar- antee for correctness can be given. AVT Audio Video Technologies GmbH cannot be held responsible for any misleading or incorrect information provided throughout this catalogue. AVT Audio Video Technologies GmbH re- serves the right to change specifications at any time without notice. CONTENT General 5 Features & Symbols 6 Overview 8 ISDN + VoIP ● MAGIC D7 XIP & MAGIC DC7 XIP RM Audio Codecs 10 ○ Application: Audio contribution 12 ISDN + AoIP ● MAGIC AC1 XIP & MAGIC AC1 XIP RM Audio Codecs 14 ○ Application: Audio contribution 16 E1 + AoIP ● MAGIC ACip3 & MAGIC ACip3 2M Audio Codecs 18 ○ Application: Audio contribution 20 ○ Application: AoIP distribution 22 ● MAGIC ACip3 (2M) ModNet System 24 ○ Application: Studio-Transmitter-Links 26 Audio Codec Integration ● MAGIC THipPro ACconnect 28 System Manager Upgrade 30 General Audio Codecs are needed for high-quality bitrate, the desired quality and the accept- Audio transmissions over different networks able delay. The EBU names the following Au- like IP, ISDN, 2-Mbit/s (E1) and X.21. Over IP dio algorithms as mandatory to comply with and ISDN, both Leased Line connections as the AoIP standard. G.711, G.722, ISO/MPEG well as temporary dial-up connections can Layer 2 and PCM (for stationary Audio Co- be used.
    [Show full text]
  • Centauri II Multichannel Audio Gateway Codec – a New Generation Conquers the Control-Room
    Centauri II Multichannel Audio Gateway Codec conquers the Control-room.– a new generation New! D 6ms Latency D 5.1 / 7.1 Multichannel D Front-panel Hot Keys D Gateway Function D Backup Function D Twin/Quad Codec D ASI Most Audio-Codecs are specialists. The CENTAURI II simply enables you to do everything. An unbeatable range of features makes the CENTAURI II simpler, safer and more cost-effective to use than any other codec. The CENTAURI II is your universal Audio cover the entire range currently in general Considering the extensive system support Codec for every imaginable project. use. Including MPEG, AES Transparent it is clear that the CENTAURI II is an and APT – simultaneously! audio codec for all situations. Whether for There are no networks that can stop a By other manufacturers this would still be Broadcasting, for DVB-H or UMTS trans- CENTAURI II, whether ISDN or Ethernet, a legitimate question but by MAYAH this missions, to name but a few. has long been possible. X.21 or E1. There are no protocols that In light of so much technical sophistica- the CENTAURI II cannot understand. This Combinations of its many and versatile tion, it’s hardly surprising to learn that codec can be simply and easily integrated features permit a wide range of applica- the CENTAURI II is also the first audio into every imaginable IT infrastructure. tions; from Gateway, Backup Codec or codec to offer professional 5.1/7.1 multi- And its more than 15 coding algorithms Streaming-Server to Multichannel Codec. channel transmissions.
    [Show full text]
  • Influence of Speech Codecs Selection on Transcoding Steganography
    Influence of Speech Codecs Selection on Transcoding Steganography Artur Janicki, Wojciech Mazurczyk, Krzysztof Szczypiorski Warsaw University of Technology, Institute of Telecommunications Warsaw, Poland, 00-665, Nowowiejska 15/19 Abstract. The typical approach to steganography is to compress the covert data in order to limit its size, which is reasonable in the context of a limited steganographic bandwidth. TranSteg (Trancoding Steganography) is a new IP telephony steganographic method that was recently proposed that offers high steganographic bandwidth while retaining good voice quality. In TranSteg, compression of the overt data is used to make space for the steganogram. In this paper we focus on analyzing the influence of the selection of speech codecs on hidden transmission performance, that is, which codecs would be the most advantageous ones for TranSteg. Therefore, by considering the codecs which are currently most popular for IP telephony we aim to find out which codecs should be chosen for transcoding to minimize the negative influence on voice quality while maximizing the obtained steganographic bandwidth. Key words: IP telephony, network steganography, TranSteg, information hiding, speech coding 1. Introduction Steganography is an ancient art that encompasses various information hiding techniques, whose aim is to embed a secret message (steganogram) into a carrier of this message. Steganographic methods are aimed at hiding the very existence of the communication, and therefore any third-party observers should remain unaware of the presence of the steganographic exchange. Steganographic carriers have evolved throughout the ages and are related to the evolution of the methods of communication between people. Thus, it is not surprising that currently telecommunication networks are a natural target for steganography.
    [Show full text]
  • Low Bit-Rate Speech Coding with Vq-Vae and a Wavenet Decoder
    ICASSP 2019-2019 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), pp. 735-739. IEEE, 2019. DOI: 10.1109/ICASSP.2019.8683277. c 2019 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. LOW BIT-RATE SPEECH CODING WITH VQ-VAE AND A WAVENET DECODER Cristina Garbaceaˆ 1,Aaron¨ van den Oord2, Yazhe Li2, Felicia S C Lim3, Alejandro Luebs3, Oriol Vinyals2, Thomas C Walters2 1University of Michigan, Ann Arbor, USA 2DeepMind, London, UK 3Google, San Francisco, USA ABSTRACT compute the true information rate of speech to be less than In order to efficiently transmit and store speech signals, 100 bps, yet current systems typically require a rate roughly speech codecs create a minimally redundant representation two orders of magnitude higher than this to produce good of the input signal which is then decoded at the receiver quality speech, suggesting that there is significant room for with the best possible perceptual quality. In this work we improvement in speech coding. demonstrate that a neural network architecture based on VQ- The WaveNet [8] text-to-speech model shows the power VAE with a WaveNet decoder can be used to perform very of learning from raw data to generate speech. Kleijn et al. [9] low bit-rate speech coding with high reconstruction qual- use a learned WaveNet decoder to produce audio comparable ity.
    [Show full text]
  • TR 101 329-7 V1.1.1 (2000-11) Technical Report
    ETSI TR 101 329-7 V1.1.1 (2000-11) Technical Report TIPHON; Design Guide; Part 7: Design Guide for Elements of a TIPHON connection from an end-to-end speech transmission performance point of view 2 ETSI TR 101 329-7 V1.1.1 (2000-11) Reference DTR/TIPHON-05011 Keywords internet, IP, network, performance, protocol, quality, speech, voice ETSI 650 Route des Lucioles F-06921 Sophia Antipolis Cedex - FRANCE Tel.:+33492944200 Fax:+33493654716 Siret N° 348 623 562 00017 - NAF 742 C Association à but non lucratif enregistrée à la Sous-Préfecture de Grasse (06) N° 7803/88 Important notice Individual copies of the present document can be downloaded from: http://www.etsi.org The present document may be made available in more than one electronic version or in print. In any case of existing or perceived difference in contents between such versions, the reference version is the Portable Document Format (PDF). In case of dispute, the reference shall be the printing on ETSI printers of the PDF version kept on a specific network drive within ETSI Secretariat. Users of the present document should be aware that the document may be subject to revision or change of status. Information on the current status of this and other ETSI documents is available at http://www.etsi.org/tb/status/ If you find errors in the present document, send your comment to: [email protected] Copyright Notification No part may be reproduced except as authorized by written permission. The copyright and the foregoing restriction extend to reproduction in all media.
    [Show full text]
  • UMTS); LTE; Performance Characterization of the Adaptive Multi-Rate Wideband (AMR-WB) Speech Codec (3GPP TR 26.976 Version 10.0.0 Release 10)
    ETSI TR 126 976 V10.0.0 (2011-04) Technical Report Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); LTE; Performance characterization of the Adaptive Multi-Rate Wideband (AMR-WB) speech codec (3GPP TR 26.976 version 10.0.0 Release 10) 3GPP TR 26.976 version 10.0.0 Release 10 1 ETSI TR 126 976 V10.0.0 (2011-04) Reference RTR/TSGS-0426976va00 Keywords GSM, LTE, UMTS ETSI 650 Route des Lucioles F-06921 Sophia Antipolis Cedex - FRANCE Tel.: +33 4 92 94 42 00 Fax: +33 4 93 65 47 16 Siret N° 348 623 562 00017 - NAF 742 C Association à but non lucratif enregistrée à la Sous-Préfecture de Grasse (06) N° 7803/88 Important notice Individual copies of the present document can be downloaded from: http://www.etsi.org The present document may be made available in more than one electronic version or in print. In any case of existing or perceived difference in contents between such versions, the reference version is the Portable Document Format (PDF). In case of dispute, the reference shall be the printing on ETSI printers of the PDF version kept on a specific network drive within ETSI Secretariat. Users of the present document should be aware that the document may be subject to revision or change of status. Information on the current status of this and other ETSI documents is available at http://portal.etsi.org/tb/status/status.asp If you find errors in the present document, please send your comment to one of the following services: http://portal.etsi.org/chaircor/ETSI_support.asp Copyright Notification No part may be reproduced except as authorized by written permission.
    [Show full text]
  • Ffmpeg Codecs Documentation Table of Contents
    FFmpeg Codecs Documentation Table of Contents 1 Description 2 Codec Options 3 Decoders 4 Video Decoders 4.1 hevc 4.2 rawvideo 4.2.1 Options 5 Audio Decoders 5.1 ac3 5.1.1 AC-3 Decoder Options 5.2 flac 5.2.1 FLAC Decoder options 5.3 ffwavesynth 5.4 libcelt 5.5 libgsm 5.6 libilbc 5.6.1 Options 5.7 libopencore-amrnb 5.8 libopencore-amrwb 5.9 libopus 6 Subtitles Decoders 6.1 dvbsub 6.1.1 Options 6.2 dvdsub 6.2.1 Options 6.3 libzvbi-teletext 6.3.1 Options 7 Encoders 8 Audio Encoders 8.1 aac 8.1.1 Options 8.2 ac3 and ac3_fixed 8.2.1 AC-3 Metadata 8.2.1.1 Metadata Control Options 8.2.1.2 Downmix Levels 8.2.1.3 Audio Production Information 8.2.1.4 Other Metadata Options 8.2.2 Extended Bitstream Information 8.2.2.1 Extended Bitstream Information - Part 1 8.2.2.2 Extended Bitstream Information - Part 2 8.2.3 Other AC-3 Encoding Options 8.2.4 Floating-Point-Only AC-3 Encoding Options 8.3 flac 8.3.1 Options 8.4 opus 8.4.1 Options 8.5 libfdk_aac 8.5.1 Options 8.5.2 Examples 8.6 libmp3lame 8.6.1 Options 8.7 libopencore-amrnb 8.7.1 Options 8.8 libopus 8.8.1 Option Mapping 8.9 libshine 8.9.1 Options 8.10 libtwolame 8.10.1 Options 8.11 libvo-amrwbenc 8.11.1 Options 8.12 libvorbis 8.12.1 Options 8.13 libwavpack 8.13.1 Options 8.14 mjpeg 8.14.1 Options 8.15 wavpack 8.15.1 Options 8.15.1.1 Shared options 8.15.1.2 Private options 9 Video Encoders 9.1 Hap 9.1.1 Options 9.2 jpeg2000 9.2.1 Options 9.3 libkvazaar 9.3.1 Options 9.4 libopenh264 9.4.1 Options 9.5 libtheora 9.5.1 Options 9.5.2 Examples 9.6 libvpx 9.6.1 Options 9.7 libwebp 9.7.1 Pixel Format 9.7.2 Options 9.8 libx264, libx264rgb 9.8.1 Supported Pixel Formats 9.8.2 Options 9.9 libx265 9.9.1 Options 9.10 libxvid 9.10.1 Options 9.11 mpeg2 9.11.1 Options 9.12 png 9.12.1 Private options 9.13 ProRes 9.13.1 Private Options for prores-ks 9.13.2 Speed considerations 9.14 QSV encoders 9.15 snow 9.15.1 Options 9.16 vc2 9.16.1 Options 10 Subtitles Encoders 10.1 dvdsub 10.1.1 Options 11 See Also 12 Authors 1 Description# TOC This document describes the codecs (decoders and encoders) provided by the libavcodec library.
    [Show full text]
  • Audio Codec (1)
    Audio Codec (1) Sampling Number of Codec bit rate Description frequency channels General (medium to high bit rate) 640 kbps (max.) Belonging to Dolby Digital, 448 kbps (DVD, supporting multi-channel AC-3 Digital cable TV) -Multiaudio, used on DVD 384 kbps (ATSC) Pulse-code modulation, digital representation of an analogue signal by sampling the Varied magnitude of the signal at PCM -Up to 8 64 kbps (DS0) uniform intervals, used in digital telephone systems and digital audio in computers and CDs AAC - 8 – 96 kHz - Advanced Audio Coding, Adaptive Transform Acoustic 48, 64, 66, 132, 256 Coding, developed by Sony, ATRAC -- kbps used to store information on Minidisc, Digital Theatre System, used 768 – 1536 kbps (6- DTS -Multifor in-movie sound on film and channel) on DVD MP1 384 kbps Varied 1, 2 Lowest encoder complexity 256 – 384 kbps More complex encoder and (excellent) decoder, able to remove more 224 – 256 kbps (very of the signal redundancy and MP2 Varied 1, 2 good) to apply the psychoacoustic 192 – 224 kbps threshold more efficiently (good) 224 – 320 kbps More complex, directed (excellent) towards lower bit rate 32, 41.1, 48 MP3 192 – 224 kbps (very 1, 2 applications kHz good) 128 – 192 (good) Known as MPC, MPEGplus, Musepack 160 – 180 kbps - 2 MPEG+ or MP+, a derivative of MP2 Constant bitrate at Developed by Nippon TwinVQ 80, 96, 112, 128, --Telegraph and Telephone 160, 192 kbps Corporation Open and free codec project Vorbis 45 – 500 kbps - - from the Xiph.org Foundation Constant and Developed by Microsoft WMA variable bit rate -Multi
    [Show full text]