Genista Products and Solutions

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1 Genista Products and Solutions All that you need to measure media quality Genista Optimacy Media Quality Assurance Workstation Genista PQoS Portable Media Quality Test Instrument Genista SDK A Software Development Kit for Building Media Quality Management Solutions Genista Agent A Software Agent for Media Quality Monitoring

2 Genista Products and Solutions A Catalog Genista Optimacy Media Quality Assurance Workstation Genista PQoS Portable Media Quality Test Instrument Genista SDK Software Development Kit for Building Media Quality Management Solutions Genista Agent A Software Agent for Media Quality Monitoring Your Application status Watchdog data commands checks Agent

3 GENISTA Pro Quality Media Provides a relative mode to test a media clip against a reference, and an absolute mode to analyze a single video on its own. Absolute metrics need no reference signals. Genista Optimacy Video Quality Metrics analyze video clips and check for jerky motion, pixelated, patchy images, and blur. The perfect addition to media encoders, it gives a perceptual video quality score plus high-resolution time series records to characterize defective segments. Video for Windows (.avi) Real Media (.rm) Windows Media Video (.wmv,.asf) QuickTime (.mov) MPEG-1 (.mpeg,.mpg) MPEG-2 (.mpg,.m2v) MPEG-4 (.mp4) 3GPP and 3GPP2 (.3gp,.3g2) Image Quality Metrics measure the fidelity, clarity, and colorfulness of digital photos and graphic illustrations. Image files encoded in bitmap, JPEG and JPEG 2000 formats are handled. JPEG (JFIF) File Format (.jpg) JPEG 2000 File Format and Code Stream (.jp2,.jpc) Windows Bitmap (.bmp) Portable Pixelmap Format (.ppm) Tag Image File Format (.tiff) Audio Quality Metrics provide a powerful set of metrics for measuring voice and audio quality. Check if compressed audio is truly hi-fi and free of audible artifacts. PCM (.pcm,.wav) MP3 (.mp3) AMR, AAC (.3gp,.mp4) RealMedia (.ra,.rm) Handles all popular streaming formats and all video codecs that use the AVI architecture (e.g. ITU H.263 and H.264) WindowsMedia 7 to 9 RealMedia 8 to 10 All codecs supported by QuickTime movie architecture ITU H.263 in both MPEG-4 and 3GPP Media Quality Assurance Workstation Genista Optimacy provides accurate and automated metrics for measuring the perceptual quality of media clips and streams, while covering all types of voice, audio, image, and video formats. It is an integrated hardware/software platform and an essential tool for professionals who work with production, archiving, and distribution of digital media on networks and consumer devices. If you need reliable and systematic measurement of digital media quality, then Genista Optimacy is the right tool for you. The perfect balance between quality, bandwidth, and file size can be reached by putting Genista Optimacy to use. With a batch mode that provides ample shortcuts and timesavers for high-volume projects, Optimacy is the cheapest and fastest way to rest assured that your content is free of digital impairments. It is easy to use and is an ideal supplement to content creation tools from industry leaders like Adobe, Microsoft, and Apple. Relative and Absolute Metrics Instantaneous quality scores are output every second in order to match the pace at which humans sense audiovisual impairments. A simple and easy-to-learn user interface displays the metrics in realtime and saves them in popular file formats. Features Perceptual Metrics The Genista Optimacy provides perceptual metrics for video quality based on properties of human visual system, and audio quality based on human audition. Absolute metrics work in real-time without reference signals, allowing nonintrusive, in-service measurements. Saves Time and Money Genista Optimacy provides a cost-effective quality measurement solution by elimination of long, awkward subjective tests. It is a compact and portable instrument that can be used both in the lab and in the field to measure what end-users see and hear. GENISTA CORPORATION, RUE DU THÉÂTRE 5, CH-1820 MONTREUX, SWITZERLAND T , F , info@genista.com,

4 Genista Optimacy Metrics Metric Unit Description Relative Absolute Video Quality Metrics Blockiness % Perceptual measure of the block structure that is common to all DCT-based video compression techniques. Blur % Perceptual measure of the loss of fine detail and the smearing of edges in the video. It is typically caused by a high-frequency attenuation at some stage of the recording or encoding process. Jerkiness % Perceptual measure of frozen pictures or motion that does not look smooth. Can be caused by network congestion, packet loss, frames dropped by the encoder, or reduced frame rate. Objective MOS 1 to 5 Objective measure of the overall quality of the test video on a scale of 1 (Bad) to 5 (Excellent). Noise % Perceptual measure of the test video when it deviates from the reference most noticeably in smooth regions and around edges (edge noise). This can arise from noisy acquisition, the compression algorithm, or transmission errors. Flicker % Perceptual measure of temporal effects seen when digital video is watermarked. Colorfulness % Objective measure of color saturation loss. Color PSNR db Peak signal to noise ratio (including color), using perceptually uniform differences. Image Quality Metrics Blockiness % Perceptual measure of the block structure that is common to all DCT-based image compression techniques Blur % Perceptual measure of the loss of fine detail and the smearing of edges in the image. It is typically caused by a high-frequency attenuation at some stage of the recording or encoding process. Objective MOS 1 to 5 Objective measure of the overall quality of the test image on a scale of 1 (Bad) to 5 (Excellent). Noise % Perceptual measure of the test image when it deviates from the reference most noticeably in smooth regions and around edges (edge noise). This can arise from noisy acquisition, the compression algorithm, or transmission errors. Colorfulness % Objective measure of color saturation loss. Color PSNR db Peak signal to noise ratio in db (including color), using perceptually uniform differences. Audio Quality Metrics Bandwidth Hz a Estimates the mean bandwidth of the audio clip. Loudness Sone b Loudness is a measure of how loud a sound is perceived. It depends on the amplitude of the waveform, bandwidth, temporal masking, and frequency masking. Objective MOS 1 to 5 Mean Opinion Score averaged over the entire audio clip. This value ranges from 1 (bad) to 5 (good) is meant to reproduce the results of human subjective tests on overall audio quality. NMR c Noise-Mask Ratio measures the level difference between the masked threshold and the noise signal. The lower the NMR is, the less degraded the signal under test. IAN Binary Instantaneous Audible Distortion. This binary flag indicates whether the noise in an audio segment is audible. Noise Loudness Sone Noise is the differences between the test signal and the reference signal. How loud is it? a. A CD sampled at 44.1 KHz has a maximum bandwidth of KHz b. The Loudness metric assumes that you will play back the audio at 92 db SPL. The Loudness that you will subjectively perceive for a1 KHz full scale (16- bit amplitude of 32767) tone is 29.5 sones c. This a dimensionless ratio.

5 GENISTA Pro Quality Media Compact and Portable. Unit Dimensions and Weight: 297mm (W) x 210mm (D) x 43mm (H) 1.75 kg Genista PQoS Audio/Video Input S-Video 4-pin Mini-DIN Coaxial RCA jack (composite) Stereo audio RCA jack Optional Accessories Vehicle mount Wall or office docking station Internal GPS, GPRS and/or Bluetooth External USB 89-key backlight KB with track point (IP54 compliant) Video Quality Metrics analyze video clips and check for jerky motion, pixelated, patchy images, and blur. The perfect addition to media encoders, it gives a perceptual video quality score plus high-resolution time series records to characterize defective segments. Video for Windows (.avi) Real Media (.rm) Windows Media Video (.wmv,.asf) QuickTime (.mov) MPEG-1 (.mpeg,.mpg) MPEG-2 (.mpg,.m2v) MPEG-4 (.mp4) 3GPP and 3GPP2 (.3gp,.3g2) Audio Quality Metrics provide a powerful set of metrics for measuring voice and audio quality. Check if compressed audio is truly hi-fi and free of audible artifacts. PCM (.pcm,.wav) MP3 (.mp3) AMR, AAC (.3gp,.mp4) RealMedia (.ra,.rm) Handles all popular streaming formats and all video codecs that use the AVI architecture (e.g. ITU H.263 and H.264) WindowsMedia 7 to 9 RealMedia 8 to 10 All codecs supported by QuickTime movie architecture ITU H.263 in both MPEG-4 and 3GPP A Compact Portable Instrument for Measuring Perceptual Quality of Media Devices and Streams Consumer devices and network appliances like cellphones, set-top boxes, and videophones use compression and transmission over lossy networks. Compression and transmission result in visual and audible artifacts like blurry images, frozen video, and choppy audio. As the first step in optimization of digital media products and services, designers of consumers devices and providers of media delivery networks must measure the extent of perceptual impairments that endusers experience. The question is how? The answer is the Genista PQoS from Genista. Features Perceptual Metrics The Genista PQoS provides perceptual metrics for video quality based on properties of human visual system, and audio quality based on human audition. All metrics work without reference signals, allowing nonintrusive, in-service measurements. A simple and easy-to-learn user interface displays the metrics and saves them in popular file formats like CSV. Needs No reference Signals Genista PQoS computes all metrics without the need for reference signals and allowing measurement in situation where the original media is lost or otherwise unavailable. Saves Time and Money The Genista PQoS provides a cost-effective quality measurement solution by elimination of long, awkward subjective tests. It is a compact and portable instrument that can be used both in the lab and in the field to measure what end-users see and hear. GENISTA CORPORATION, RUE DU THÉÂTRE 5, CH-1820 MONTREUX, SWITZERLAND T , F , info@genista.com,

6 Genista PQoS Metrics The Genista PQoS computes the metrics listed below every second in order to match the pace at which humans sense audiovisual impairments. Command Unit Description Cause Jerkiness % Perceptual measure of frozen pictures or motion that does not look smooth Blockiness % Perceptual measure of the extent blocky, patchy images Blur % Perceptual measure of the loss of fine detail and the smearing of edges Video Quality 1 to 5 Perceptual measure of overall video quality, equivalent to Mean Opinion Score (MOS) Audio Bandwidth Hertz Instantaneous range of frequencies occupied by decoded audio Network congestion, packet loss, frames dropped by the encoder, reduced frame rate. Compression, bit errors, packet loss and high motion. Compression, bit errors, packet loss, low-pass filtering and camera out-of-focus. All of the above Compression Loudness Sone How loud is the audio? Sender or receiver volume control Audio Loss Binary A binary flag indicating if a segment of audio is lost, like choppiness Audio Quality 1 to 5 Perceptual Measure of overall audio quality, equivalent to Mean Opinion Score (MOS) Packet loss, bit errors Compression, bit errors, packet loss, loudness, audio frequency bandwidth, saturation Network Usage Example

7 Opens and plays disk resident and streamed audio/video clips Genista SDK Supports all popular audio/video file formats and players Extracts available statistics for the video sequences (frame size, duration, video and audio codec, etc) Extracts some network statistics (packets received, recovered, lost, buffer status) Your Application Instantiation Windows OS Messages Genista SDK DLL Callback API Media Analyzer Extracts relevant timing information (request time, buffering start, buffering end, playback stop, cutoff) Playback functions such as play, pause, stop API Callback Media Handler Functions to display media and measurement results Provides absolute video metrics (Jerkiness, Blur, Blockiness) and Mean Opinion Score (MOS) that need no reference signals Absolute audio metrics (Bandwidth, loudness, saturation) and Mean Opinion Score (MOS) that need no reference signals Threshold settings for multilevel alarms Logs measurement results for easy access by other programs GENISTA Pro Quality Media Rue du Théâtre 5 CH-1820 Montreux, Switzerland T F info@genista.com A Software Development Kit for Building Media Quality Management Solutions The Genista Software Development Kit (SDK) is a powerful framework for the building digital media quality measurement solutions. It provides a platform for the development of robust and accurate perceptual quality measurement solutions, and enables third-party developers like Original Equipment Manufacturers (OEMs) and independent software vendors to develop customized solutions that meet unique business needs. Genista SDK has been designed for Microsoft Windows 2000/XP platform and includes dynamic link library (DLL) files, sample programs and detailed documentation for rapid and seamless integration of perceptual metrics in media delivery network management systems and instruments. It supports all major software development environments like Visual Basic, Visual C++, C++Builder, Borland Delphi, and Visual Basic.Net. Total Support to Acceleate Integration Genista SDK comes with sample C++ source programs to show how the Media Wrapper is structured. This is a perfect starting point for third-party developers to build their own custom Media Wrapper in case they want to add an extra player or support a proprietary media player. Sample C++ programs to show how to interact with the SDK and change the look and feel of the default display windows are also provided by Genista SDK. All DLL files are included in SDK together with usage documentation (help files) and sample codes to make it as easy as possible for third-party application software developers to use Genista SDK. Copyright 2005 Genista Corporation. All Rights Reserved. Trademarks belong to their respective owners.

8 Genista SDK DLL. Third-party application programs use this DLL file to access the functions provided by Genista SDK. There are two principal classes inside the Genista SDK: a Media Handler Wrapper and a Media Analyzer Wrapper. The Media Handler Wrapper is a class that provides media player functions like open media stream, play, pause, resume, and stop. The modular design of Genista SDK architecture allows third-party developers to provide their own wrappers for media handlers. Media Analyzer Wrapper provides access to audio and video metrics. Video Metrics. Table 1 provides a list of Video Metrics in the Genista SDK and their output data structures. A DLL file makes all the Video Metrics available to the third-party application software via the Genista SDK. TABLE 1. Video Metrics: Output Data Structure Name Type Description TimeStamp ULONG TimeStamp of the received results in [ms] Blockiness float Score for the blockiness in [%] Blur float Score for the blur in [%] Jerkiness float Score for the jerkiness in [%] Video MOS float Perceptual Measure of the overall video quality on a range of 1 to 5 Percentage Measured int Percentage of the frames that have been measured Metrics frequency int Frequency at which the metrics are computed (max = frame rate) Frames Used int The number of frames that have been used for the computation of the score Audio Metrics. Table 2 provides a list of Audio Metrics in the Genista SDK and their output data structures. A DLL file makes all the Audio Metrics available to the third-party application software via the Genista SDK. TABLE 2. Audio Metrics: Output Data Structure Name Type Description TimeStamp ULONG TimeStamp of the received results in [ms] Bandwidth float Frequency bandwidth in [Hz]. Estimation of the spectral domain width in use by the signal (a CD sampled at 44.1kHz gives a maximum of 22,050Hz) Loudness float Perceived sensation of the intensity of a sound expressed in [sone] Saturation float Provides the percentage of how saturated your signal is. (Ratio between saturated samples over the total number of samples). Choppiness float Flag that indicates the loss of the audio track Audio MOS int Perceptual Measure of the overall audio quality on a range of 1 to 5 Percentage Measured int Percentage of the samples that have been measured Media Wrappers. Genista SDK provides access to popular streaming media players through Media Warppers. These are DLL files that extract audio/video data and information from Windows Media, Apple QuickTime, and Real Media players to measure perceptual quality. Genista SDK includes the Media Wrappers (and their codecs) listed in Table 3. TABLE 3. List of Media Wrappers Supported by Genista SDK Media Codec RealMedia Wrapper Real Codec G2 and 8 to 10 (.ram,.rm) QuickTime Wrapper WindowsMedia Wrapper DirectX Wrapper All standard codecs supported by Apple QuickTime (.mov,.3gp,.mp4,.sdp) Windows Media Codec 7 to 9 (.wmv,.asf,.asx) Video for Windows (.avi) and any codec that can be accessed through DirectShow filters (MPEG, MPEG2, MotionJPEG, DivX, etc)

9 Provides perceptual metrics for video quality based on properties of human visual system Genista Agent Provides absolute video metrics (Jerkiness, Blur, Blockiness) and Mean Opinion Score (MOS) Your Application status Watchdog Provides perceptual metrics for audio quality based on properties of human audition data Absolute audio metrics (Bandwidth, loudness, saturation) and Mean Opinion Score (MOS) commands Agent checks All metrics work without reference signals. Exchange commands and data according to a simple and robust protocol illustrated Broad applications Mobile Video Digital Video Broadcast TV over IP Video on Demand Supports all major media platforms: Real Media 3GPP MPEG-4 QuickTime Movie Windows Media Threshold settings for multilevel alarms GENISTA Pro Quality Media Rue du Théâtre 5 CH-1820 Montreux, Switzerland T F info@genista.com A Software Agent for Monitoring the Perceptual Quality of Media Streams Genista Agent measures the perceptual quality of media streams. It is a real-time, nonintrusive, in-service software tool that can fit anywhere in the content production and delivery chain. Genista Agent comes as a software package containing three pieces: the Agent itself, a Test Client (TC), and a Watchdog. The package provides a broad set of metrics and parameters that work together to provide a robust and accurate procedure for measuring the end-user experience of media streams. The Agent. Genista delivers the Agent as a stand-alone executable program under Microsoft Windows 2000/ XP. It is designed for integration into third-party solutions and OEMs. In an integrated solution, it listens for commands sent by a controlling test client (TC) on an assigned IP address and port number. The Test Client. Genista provides a sample test client to support the integration of Genista Agent into third-party solutions. The TC serves as a reference for OEM developers to setup their own control and interface software for using the Genista Agent within their applications. The full source code for the TC is included in the Genista Agent package. The Watchdog. Genista also provides a Watchdog in the form of a windowless, stand-alone executable. This application keeps track of the Agent and can be started from the command line or launched as a service at startup. It ensures the stability of the measurement process and eases the integration effort for OEM developers. The Watchdog launches the Agent when requested by the TC, checks at regular intervals if the Agent process is still alive and responding, and confirms that all required media players are indeed installed on the computer. In other respects, the Watchdog has no active control over the Agent, or the TC, and has a passive function throughout the measurement session. Copyright 2005 Genista Corporation. All Rights Reserved. Trademarks belong to their respective owners.

10 Genista Agent in Action The Agent provides perceptual metrics for video quality based on properties of human visual system, and audio quality based on human audition. All metrics work without reference signals. The TC, the Watchdog, and the Agent exchange commands and data according to a simple and robust protocol illustrated in Figure 1. FIGURE 1. Illustration of Messages Exchanged during a Measurement Session TC Watchdog ConnectRequest PlayerVersionInfo OpenStream StartStream Creates VersionInfo StreamInfo AnalysisData Agent AnalysisData StreamFinished TerminateAgent DisconnectSocket TABLE 1. Genista Agent Metrics Command Description Cause Jerkiness Blockiness Blur Perceptual measure of frozen pictures or motion that does not look smooth Perceptual measure of the extent of blockiness in pixelated, patchy images Perceptual measure of the loss of fine detail and the smearing of edges Network congestion, packet loss, frames dropped by the encoder, reduced frame rate. Compression, transmission errors, packet loss and high motion. Compression, transmission errors, packet loss, low-pass filtering and camera out-of-focus. Video MOS Perceptual Measure of overall video quality All of the above Audio MOS Perceptual Measure of overall audio quality Compression, transmission errors, packet loss, loudness, audio frequency bandwidth, saturation SUPPORTED MEDIA AND CODECS TABLE 2. Genista Agent Supports All Popular Media File Formats and Codecs. Media Codec Real Media (.rm,.ram) Real Video 8 to 10 3GPP (.3gp) H.263, MPEG-4 simple visual profile MPEG-4 (.mp4) H.263, MPEG-4 simple visual profile QuickTime Movie (.mov) Any codec supported by the QuickTime movie architecture Windows Media (.wmv,.asf,.asx) Windows Media 7 to 9

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