A newer Changelog
[libav.git] / Changelog
CommitLineData
e07702ba
HBH
1<HTML>
2<HEAD>
3<TITLE>
4FFmpeg Changelog
5</TITLE>
6</HEAD>
7<body>
8<h1> FFmpeg Changelog </h1>
9<PRE>
10version 0.4.7 (0.5 ???):
11
12- 4X multimedia playback system including 4xm file demuxer (Mike
13 Melanson), and 4X video and audio codecs (Michael)
14- Creative YUV (CYUV) decoder (Mike Melanson)
15- FFV1 codec (our very simple lossless intra only codec, compresses much better
16 then huffyuv) (Michael)
17- ASV1 (Asus), H.264, Intel indeo3 codecs has been added (Various)
18- Tiny PNG encoder and decoder, tiny GIF decoder, PAM decoder (PPM with
19 alpha support), JPEG YUV colorspace support. (Fabrice Bellard)
20- ffplay has been replaced with a newer version which uses SDL (optionally)
21 for multi platform support (fabrice)
22- Sorenson Version 3 codec (SVQ3) support has been added (decoding only) - donated
23 by anonymous
24- AMR format has been added (Johannes Carlsson)
25- 3gp support has been added (Joca, improved by Johannes Carlson)
26- VP3 codec has been added (Mike Melanson)
27- more MPEG-1/2 fixes
28- Better Multi platform support, MS Visual Studio fixes (various)
29- Altivec optimizations (Magnus Damn and others)
30- SH4 processor support has been added (BERO)
31- New public interfaces (avcodec_get_pix_fmt) (Roman Shaposhnick)
32- VOB Streaming support (Brian Foley)
33- Better MP3 Autodetection (Andriy Rysin)
d3d10087
FB
34- qpel encoding (Michael)
35- 4mv+b frames encoding finally fixed (Michael)
36- chroma ME (Michael)
37- 5 comparission functions for ME (Michael)
38- b frame encoding speedup (Michael)
e07702ba 39- wmv2 codec (unfinished - Michael)
d3d10087
FB
40- user specified diamond size for EPZS (Michael)
41
e07702ba
HBH
42.. And lots more new enhances and fixes.
43
d3d10087 44version 0.4.6:
739d6efa 45
6d291820
FB
46- completely new integer only mpeg audio layer 1/2/3 decoder rewritten
47 from scratch.
739d6efa
FB
48- recoded dct and motion vector search with gcc (no longer depends on
49 nasm).
50- fix quantization bug in AC3 encoder.
7f913a35
FB
51- added PCM codecs and format. Corrected wav/avi/asf pcm issues.
52- added prototype ffplay program.
644d98a4
J
53- added GOB header parsing on H.263/H.263+ decoder. (Juanjo)
54- bug fix on MCBPC tables of H.263. (Juanjo)
81401c1f 55- bug fix on DC coefficients of H.263. (Juanjo)
644d98a4
J
56- added Advanced Prediction Mode on H.263/H.263+ decoder. (Juanjo)
57- now we can decode H.263 streams found on QuickTime files. (Juanjo)
58- now we can decode H.263 streams found on VIVO v1 files.(Juanjo)
59- preliminary RTP "friendly" mode for H.263/H.263+ coding. (Juanjo)
60- added GOB header for H.263/H.263+ coding on RTP mode. (Juanjo)
61- now H.263 picture size is returned on the first decoded frame. (Juanjo)
7f913a35 62- added first regression tests
a31e01c5
FB
63- added MPEG2 TS demux
64- new demux API for libav
6d291820
FB
65- more accurate and faster IDCT (Michael)
66- faster and entropy controlled motion search (Michael)
67- two pass video encoding (Michael)
68- new video rate control (Michael)
69- added MSMPEG4V1, MSMPEGV2 and WMV1 support (Michael)
70- great performance improvement of video encoders and decoders (Michael)
71- new and faster bit readers and vlc parsers (Michael)
72- high quality encoding mode : tries all macroblock/VLC types (Michael)
73- added DV video decoder
74- preliminary RTP/RTSP support in ffserver and libavformat
b963ee3b 75- H.263+ AIC decoding/encoding support. (Juanjo)
02c7e177
FB
76- VCD MPEG-PS mode. (Juanjo)
77- PSNR stuff. (Juanjo)
78- Simple stats output. (Juanjo)
a32072d0 79- 16-bit and 15-bit rgb/bgr/gbr support (Bisqwit)
739d6efa 80
de6d9b64
FB
81version 0.4.5:
82
e07702ba
HBH
83- some header fixes (Zdenek Kabelac &lt;kabi@informatics.muni.cz&gt;).
84- many MMX optimizations (Nick Kurshev &lt;nickols_k@mail.ru&gt;).
de6d9b64
FB
85- added configure system (actually a small shell script).
86- added mpeg audio layer 1/2/3 decoding using LGPL'ed mpglib by
87 Michael Hipp (temporary solution - waiting for integer only
88 decoder).
89- fixed VIDIOCSYNC interrupt.
90- added Intel H263 decoding support ('I263' avi fourCC)
91- added Real Video 1.0 decoding (needs further testing).
92- simplified image formats again. Added PGM format (=grey
93 pgm). Renamed old PGM to PGMYUV.
94- fixed msmpeg4 slice issues (tell me if you still find problems).
95- fixed opendivx bugs with newer versions (added VOL header decoding).
96- added support for mplayer interface.
16fbebe1 97- added macroblock skip optimization.
0c1e384c 98- added MJPEG decoder.
16fbebe1 99- added mmx/mmxext idct from libmpeg2.
0c1e384c 100- added pgmyuvpipe, ppm, and ppm_pipe formats (original patch by Celer
e07702ba 101 &lt;celer@shell.scrypt.net&gt;).
0c1e384c
FB
102- added pixel format convertion layer (e.g. for MJPEG or PPM).
103- added deinterlacing option.
4a8c7a7f 104- mpeg1/2 fixes.
e07702ba
HBH
105- mpeg4 vol header fixes (Jonathan Marsden &lt;snmjbm@pacbell.net&gt;).
106- ARM optimizations (Lionel Ulmer &lt;lionel.ulmer@free.fr&gt;).
4a8c7a7f 107- Windows porting of file converter.
8fa30bd7
FB
108- added MJPEG raw format (input/ouput).
109- added JPEG image format support (input/output).
de6d9b64
FB
110
111version 0.4.4:
112
113- fixed some std header definitions (Bjorn Lindgren
e07702ba 114 &lt;bjorn.e.lindgren@telia.com&gt;).
de6d9b64
FB
115- added mpeg demux (mpeg 1 and 2 compatible).
116- added ASF demux.
117- added prototype RM demux.
118- added AC3 decoding (done with libac3 by Aaron Holtzman).
119- added decoding codec parameter guessing (.e.g. for mpeg, because the
120 header does not include them).
121- fixed header generation in mpeg1, AVI and ASF mux : wmplayer can now
122 play them (only tested video).
123- fixed h263 white bug.
124- fixed phase rounding in img resample filter.
125- add mmx code for polyphase img resample filter.
126- added CPU autodetect.
127- added generic title/author/copyright/comment string handling (ASF and RM use them).
128- added SWF demux to extract MP3 track (not usable yet because no MP3
129 decoder).
130- added fractional frame rate support.
131- codecs are no longer searched by read_header() (should fix ffserver
132 segfault).
133
134version 0.4.3:
135
e07702ba 136- BGR24 patch (initial patch by Jeroen Vreeken &lt;pe1rxq@amsat.org&gt;).
de6d9b64
FB
137- fixed raw yuv output.
138- added motion rounding support in MPEG4.
139- fixed motion bug rounding in MSMPEG4.
140- added B frame handling in video core.
141- added full MPEG1 decoding support.
142- added partial (frame only) MPEG2 support.
143- changed the FOURCC code for H.263 to "U263" to be able to see the
144+AVI/H.263 file with the UB Video H.263+ decoder. MPlayer works with
145this +codec ;) (JuanJo).
146- Halfpel motion estimation after mb type selection (JuanJo).
147- added pgm and .Y.U.V output format.
148- suppressed 'img:' protocol. Simply use: /tmp/test%d.[pgm|Y] as input or
149 output.
150- added pgmpipe I/O format (original patch from Martin Aumueller
e07702ba 151 &lt;lists@reserv.at&gt;, but changed completely since we use a format
de6d9b64
FB
152 instead of a protocol).
153
154version 0.4.2:
155
156- added H263/MPEG4/MSMPEG4 decoding support. MPEG4 decoding support
157 (for openDIVX) is almost complete: 8x8 MVs and rounding are
158 missing. MSMPEG4 support is complete.
159- added prototype MPEG1 decoder. Only I and P frames handled yet (it
160 can decode ffmpeg mpegs :-)).
161- added libavcodec API documentation (see apiexample.c).
162- fixed image polyphase bug (the bottom of some images could be
163 greenish).
164- added support for non clipped motion vectors (decoding only)
165 and image sizes non multiple of 16.
166- added support for AC prediction (decoding only).
167- added file overwrite confirmation (can be disabled with -y).
168- Added custom size picture to H.263 using H.263+ (Juanjo).
169
170version 0.4.1:
171
172- added MSMPEG4 (aka DIVX) compatible encoder. Changed default codec
173 of avi and asf to DIV3.
174- added -me option to set motion estimation method
175 (default=log). suppressed redundant -hq option.
176- added options -acodec and -vcodec to force a given codec (useful for
177 AVI for example).
178- fixed -an option.
179- improved dct_quantize speed.
180- factorized some motion estimation code.
181
182version 0.4.0:
183
184- removing grab code from ffserver and moved it to ffmpeg. Added multi
185 stream support to ffmpeg.
186- added timeshifting support for live feeds (option ?date=xxx in the
187 URL).
188- added high quality image resize code with polyphase filter (need
189 mmx/see optimisation). Enable multiple image size support in ffserver.
190- added multi live feed support in ffserver.
191- suppressed master feature from ffserver (it should be done with an
192 external program which opens the .ffm url and writes it to another
193 ffserver).
194- added preliminary support for video stream parsing (wav and avi half
195 done). Added proper support for audio/video file convertion in
196 ffmpeg.
197- added preliminary support for video file sending from ffserver.
198- redesigning I/O subsystem : now using URL based input and output
199 (see avio.h).
200- added wav format support.
201- added "tty user interface" to ffmpeg to stop grabbing gracefully.
202- added MMX/SSE optimizations to SAD (Sums of Absolutes Diferences)
e07702ba 203 (Juan J. Sierralta P. a.k.a. "Juanjo" &lt;juanjo@atmlab.utfsm.cl&gt;).
de6d9b64
FB
204- added MMX DCT from mpeg2_movie 1.5 (Juanjo).
205- added new motion estimation algorithms, log and phods (Juanjo).
206- changed directories : libav for format handling, libavcodec for
207 codecs.
208
209version 0.3.4:
210
211- added stereo in mpeg audio encoder.
212
213version 0.3.3:
214
215- added 'high quality' mode which use motion vectors. It can be used in
216 real time at low resolution.
217- fixed rounding problems which caused quality problems at high
218 bitrates and large gop size.
219
220version 0.3.2: small fixes
221
222- asf fixes
223- put_seek bug fix
224
225version 0.3.1: added avi/divx support
226
227- added avi support
228- added mpeg4 codec compatible with open divx. It is based on the h263
229 codec.
230- added sound for flash format (not tested)
231
232version 0.3: initial public release
e07702ba
HBH
233</PRE>
234<hr>Copyright (c) 2001, 2002 Fabrice Bellard <hr>Fabrice Bellard - <em> fabrice.bellard at free.fr </em> - <A HREF="http://bellard.org/"> http://bellard.org/ </A> - <A HREF="http://www.ffmpeg.org/"> http://www.ffmpeg.org/ </A>
235</body>
236</html>