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- FFmpeg - (c) 2000,2001 Gerard Lantau.
- 1) Introduction
- ---------------
- ffmpeg is a hyper fast realtime audio/video encoder, a streaming
- server and a generic audio and video file converter.
- It can grab from a standard Video4Linux video source and convert it
- into several file formats based on DCT/motion compensation
- encoding. Sound is compressed in MPEG audio layer 2 or using an AC3
- compatible stream.
- What makes ffmpeg interesting ?
- - Innovative streaming technology : multiformat, real time encoding,
- simple configuration.
- - Simple and efficient video encoder: outputs MPEG1, H263, Real
- Video(tm), MPEG4, DIVX and MJPEG compatible bitstreams using the
- same encoder core.
- - Real time encoding (25 fps in 352x288 on a K6 500) using the
- video4linux API.
- - Generates I and P frames, which means it is far better than a MJPEG
- encoder.
- - Hyper fast MPEG audio layer 2 compression (50 times faster than
- realtime on a K6 500).
- - Hyper fast AC3 compatible encoder.
- - simple and very small portable C source code, easy to understand and
- to modify. It be may the smallest decent MPEG encoder :-)
- - optional non real time higher quality encoding (different motion
- estimators available).
- - Audio and Video decoders are in development.
- ffmpeg is made of two programs:
- * ffmpeg: soft VCR which encodes in real time to several formats. It
- can also encode from any supported input file format to any input
- supported format.
- * ffserver: high performance live broadcast streaming server based on
- the ffmpeg core encoders.
- 2) Documentation
- ----------------
- * Read doc/ffmpeg.txt and doc/ffserver.txt to learn the basic features.
- * Read doc/TODO to know what are the know bugs and missing features.
- * Read doc/README.dev if you want to contribute or use the codec or
- format libraries.
- 3) Licensing:
- ------------
- * See the file COPYING. ffmpeg and the associated library are licensed
- under the GNU General Public License. I may change the license of
- libavcodec and libav to LGPL if many people ask it (and if they
- submit good patches!).
- * This code should be patent free since it is very simple. I took care
- to use the same video encoder/decoder core for all formats to show
- that they really ARE THE SAME except for the encoding huffman codes.
- Gerard Lantau (glantau@yahoo.fr).
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