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Zdenek Kabelac c18a2692d2 * cleanup statics & const 22 years ago
doc added faq.html 22 years ago
libav * cleanup statics & const 22 years ago
libavcodec 10l - set pixelfmt (colorspace) _before_ calling get_buffer() callback 22 years ago
postproc *HUGE* set of compiler warning fixes, unused variables removal 22 years ago
tests fixing another assert q>0.0 issue caused by variance < 0, this fix allso changes the inter/intra decission very slightly -> all regression checksums need to be updated 22 years ago
.cvsignore * cleanup 23 years ago
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Makefile BeOS Audio ouput patch by (François Revol <revol at free dot fr>) 22 years ago
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berrno.h beos/mov/adpcm patch by François Revol <revol at free dot fr> 23 years ago
configure BeOS Audio ouput patch by (François Revol <revol at free dot fr>) 22 years ago
cygwin_inttypes.h cygwin patch by (Felix Buenemann <atmosfear at users dot sourceforge dot net>) 23 years ago
ffmpeg.c fixes the frame number counter for -vcodec copy patch by (mru at users dot sourceforge.net (Måns Rullgård)) 22 years ago
ffserver.c reversing header game 22 years ago
ffserver.h added include for ffserver dynamically loaded modules 23 years ago

README

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 EXCEPT
liba52 are licensed under the Lesser GNU General Public
License. liba52 is distributed under the GNU General Public License.

* 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 mostly the same.

Fabrice Bellard.