mirror of
https://github.com/xenia-project/FFmpeg.git
synced 2024-11-23 19:49:56 +00:00
update
Originally committed as revision 1236 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
parent
fce16586a1
commit
4745b5bf6c
66
README
66
README
@ -1,70 +1,16 @@
|
||||
1) Introduction
|
||||
---------------
|
||||
FFmpeg README
|
||||
-------------
|
||||
|
||||
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
|
||||
1) Documentation
|
||||
----------------
|
||||
|
||||
* Read doc/ffmpeg.txt and doc/ffserver.txt to learn the basic features.
|
||||
* Read the documentation in the doc/ directory.
|
||||
|
||||
* 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:
|
||||
2) Licensing
|
||||
------------
|
||||
|
||||
* See the file COPYING. ffmpeg and the associated library EXCEPT
|
||||
* Read the file COPYING. ffmpeg and the associated libraries 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.
|
@ -645,6 +645,9 @@ library.
|
||||
</TR>
|
||||
<TR><TD>DV </TD><TD> </TD><TD> X</TD>
|
||||
|
||||
</TR>
|
||||
<TR><TD>Huff YUV </TD><TD> X </TD><TD> X</TD>
|
||||
|
||||
</TR></TABLE>
|
||||
|
||||
<P>
|
||||
@ -680,6 +683,9 @@ solutions.
|
||||
<TR><TD>Vorbis </TD><TD> X </TD><TD></TD>
|
||||
|
||||
</TD><TD> encoding is supported thru the external library libvorbis.
|
||||
</TR>
|
||||
<TR><TD>WMA V1/V2 </TD><TD> </TD><TD> X</TD>
|
||||
|
||||
</TR></TABLE>
|
||||
|
||||
<P>
|
||||
|
@ -362,7 +362,7 @@ library.
|
||||
|
||||
@multitable @columnfractions .4 .1 .1 .7
|
||||
@item Supported Codec @tab Encoding @tab Decoding @tab Comments
|
||||
@item MPEG1 video @tab X @tab X
|
||||
@item MPEG1 video @tab X @tab X
|
||||
@item MPEG2 video @tab @tab X
|
||||
@item MPEG4 @tab X @tab X @tab Also known as DIVX4/5
|
||||
@item MSMPEG4 V1 @tab X @tab X
|
||||
@ -372,6 +372,7 @@ library.
|
||||
@item H263(+) @tab X @tab X @tab Also known as Real Video 1.0
|
||||
@item MJPEG @tab X @tab X
|
||||
@item DV @tab @tab X
|
||||
@item Huff YUV @tab X @tab X
|
||||
@end multitable
|
||||
|
||||
@code{X} means that the encoding (resp. decoding) is supported.
|
||||
@ -391,6 +392,8 @@ solutions.
|
||||
@tab liba52 is used internally for decoding.
|
||||
@item Vorbis @tab X @tab
|
||||
@tab encoding is supported thru the external library libvorbis.
|
||||
@item WMA V1/V2 @tab @tab X
|
||||
|
||||
@end multitable
|
||||
|
||||
@code{X} means that the encoding (resp. decoding) is supported.
|
||||
|
Loading…
Reference in New Issue
Block a user