ffmpeg

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Michael Niedermayer d604bab901 fixed alignment (static variables where sometimes not 8-byte aligned) added half uv interpolation support added prefetch BGR15 support in MMX (untested) (so BGR15,16,24,32 are supported) special unscaled height version (not much faster but it doesnt interpolate uv vertically) Originally committed as revision 2317 to svn://svn.mplayerhq.hu/mplayer/trunk/postproc		2001-10-20 21:12:09 +00:00
doc	update	2001-09-24 23:22:43 +00:00
libav	changed audio and video grab interface (simpler now)	2001-09-24 23:27:06 +00:00
libavcodec	Added Juergen Keil fix on quant_tab[4] type.	2001-10-17 18:05:35 +00:00
postproc	fixed alignment (static variables where sometimes not 8-byte aligned)	2001-10-20 21:12:09 +00:00
bswap.h	Fixed one lack	2001-08-02 08:29:52 +00:00
Changelog	updated	2001-09-16 21:45:21 +00:00
configure	suppressed mpglib option	2001-09-23 17:13:48 +00:00
ffmpeg.c	unified grab & convertion loops (should be easier to achieve correct synchronization now - but still work to do!) - added ffplay support	2001-09-24 23:22:25 +00:00
ffmpeg.dsp	added win32 vc6 project files	2001-08-13 21:52:24 +00:00
ffmpeg.dsw	added win32 vc6 project files	2001-08-13 21:52:24 +00:00
ffserver.c	fixed prototype change	2001-09-25 18:27:53 +00:00
INSTALL	Initial revision	2001-07-22 14:18:56 +00:00
Makefile	Restore the main Makefile to have debug flags.	2001-10-17 18:19:30 +00:00
README	merge	2001-07-22 14:37:44 +00:00

README

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).