Book Image

Python Multimedia

By : Ninad Sathaye
Book Image

Python Multimedia

By: Ninad Sathaye

Overview of this book

Multimedia applications are used by a range of industries to enhance the visual appeal of a product. This book will teach the reader how to perform multimedia processing using Python. This step-by-step guide gives you hands-on experience for developing exciting multimedia applications using Python. This book will help you to build applications for processing images, creating 2D animations and processing audio and video. Writing applications that work with images, videos, and other sensory effects is great. Not every application gets to make full use of audio/visual effects, but a certain amount of multimedia makes any application a lot more appealing. There are numerous multimedia libraries for which Python bindings are available. These libraries enable working with different kinds of media, such as images, audio, video, games, and so on. This book introduces the reader to the most widely used open source libraries through several exciting, real world projects. Popular multimedia frameworks and libraries such as GStreamer,Pyglet, QT Phonon, and Python Imaging library are used to develop various multimedia applications.
Table of Contents (13 chapters)
Python Multimedia Beginner's Guide
Credits
About the Author
About the Reviewers
Preface

Visualizing an audio track


Most of the popular audio players provide a feature to 'visualize' the audio being played. This visualization effect is typically generated on the fly and is synchronized with the audio signal. Typically, the visualizer responds to changes in audio frequency and volume level among other properties. These changes are then shown by use of animated graphics. GStreamer provides certain plugins to visualize a track. The 'monoscope' visualization plugin is generally available in the default GStreamer installation. It displays a highly stabilized waveform of the streaming audio. Make sure that the GStreamer installation has the monoscope plugin by running the gst-inspect-0.10 command. There are several other popular plugins such as goom and libvisual. But these are not available by default in the GStreamer binary installed on Windows XP. You can install these plugins and try using these to add visualization effects.