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9c9e467d8d
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Michael Niedermayer 9c9e467d8d postprocessing cleanup: 
remove opendivx #ifdefs
remove rk1 filter
remove unused / obsolete stuff
add -1,4,2,4,-1 deinterlacing filter (ffmpeg uses that)
threadsafe / no more non-const globals
some optimizations
different strides for Y,U,V possible
remove ebx usage (someone really should fix gcc, this is really lame)
change the dering filter slightly (tell me if its worse for any files)

Originally committed as revision 7947 to svn://svn.mplayerhq.hu/mplayer/trunk/postproc
2002-10-28 19:31:04 +00:00
doc added Michael's page 2002-10-27 22:07:56 +00:00
libav unified wav header parsing - added extradata support 2002-10-28 00:55:25 +00:00
libavcodec FOURCC removed, using ff_get_fourcc instead (should be big-endian safe), workarounded a restart interval bug (Spectralfan.mov) (rst support should be rewritten and moved from decode_sos) 2002-10-28 16:29:40 +00:00
postproc postprocessing cleanup: 2002-10-28 19:31:04 +00:00
tests mergeing inter & intra rl_length tables (50% smaller & no meassureable difference in filesize/quality) 2002-10-27 12:20:58 +00:00
.cvsignore * cleanup 2002-04-26 07:18:57 +00:00
berrno.h beos/mov/adpcm patch by François Revol <revol at free dot fr> 2002-07-20 20:05:50 +00:00
Changelog updated - feel free to correct/improve 2002-10-28 00:29:13 +00:00
configure cross compiling support 2002-10-14 17:50:42 +00:00
COPYING added license 2002-05-25 23:01:48 +00:00
cygwin_inttypes.h cygwin patch by (Felix Buenemann <atmosfear at users dot sourceforge dot net>) 2002-08-30 19:34:55 +00:00
ffmpeg.c fixing bitrate display if -acodec copy is used, patch by (Kareila <cokewench at yahoo dot com>) 2002-10-26 19:23:22 +00:00
ffserver.c changed write_packet API - should work as before 2002-10-21 17:44:43 +00:00
ffserver.h added include for ffserver dynamically loaded modules 2002-07-25 16:15:28 +00:00
INSTALL add more info about new configure features 2002-05-25 22:21:14 +00:00
Makefile oggvorbis support patch by (Mark Hills <mark at pogo dot org dot uk>) 2002-09-01 18:07:56 +00:00
README license/copyright change 2002-05-25 22:23:19 +00:00
VERSION version info for so too 2002-05-09 06:23:37 +00:00

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.