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Michael Niedermayer b49d916512 using same numbers for cpuCaps as libmpeg2 & liba52 22 years ago
doc added Michael's page 22 years ago
libav unified wav header parsing - added extradata support 22 years ago
libavcodec use lrintf to avoid double conversion 22 years ago
postproc using same numbers for cpuCaps as libmpeg2 & liba52 22 years ago
tests mergeing inter & intra rl_length tables (50% smaller & no meassureable difference in filesize/quality) 22 years ago
.cvsignore * cleanup 23 years ago
COPYING added license 23 years ago
Changelog update 22 years ago
INSTALL add more info about new configure features 23 years ago
Makefile oggvorbis support patch by (Mark Hills <mark at pogo dot org dot uk>) 23 years ago
README license/copyright change 23 years ago
VERSION version info for so too 23 years ago
berrno.h beos/mov/adpcm patch by François Revol <revol at free dot fr> 23 years ago
configure cross compiling support 22 years ago
cygwin_inttypes.h cygwin patch by (Felix Buenemann <atmosfear at users dot sourceforge dot net>) 23 years ago
ffmpeg.c fixing bitrate display if -acodec copy is used, patch by (Kareila <cokewench at yahoo dot com>) 22 years ago
ffserver.c changed write_packet API - should work as before 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.