remove incorect motion estimation table
[libav.git] / Changelog
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2fdf638b 1version <next>:
4fa1c4fa 2- DV encoder, DV muxer
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3- Microsoft RLE video decoder
4- Microsoft Video-1 decoder
42cad81a 5- Apple Graphics (SMC) decoder
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6- Apple Video (RPZA) decoder
7- Cinepak decoder
8- Sega FILM (CPK) file demuxer
42cad81a 9- Westwood multimedia support (VQA & AUD files)
4120a53a 10- Id Quake II CIN playback support
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11- 8BPS video decoder
12- FLIC playback support
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13- RealVideo 2.0 (RV20) decoder
14- Duck TrueMotion v1 (DUCK) video decoder
da00f30e 15- Sierra VMD demuxer and video decoder
2fdf638b 16
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17version 0.4.8:
18
19- MPEG2 video encoding (Michael)
d9d8910b 20- Id RoQ playback subsystem (Mike Melanson and Tim Ferguson)
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21- Wing Commander III Movie (.mve) file playback subsystem (Mike Melanson
22 and Mario Brito)
23- Xan DPCM audio decoder (Mario Brito)
186447f8 24- Interplay MVE playback subsystem (Mike Melanson)
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25- Duck DK3 and DK4 ADPCM audio decoders (Mike Melanson)
26
27version 0.4.7:
e07702ba 28
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29- RealAudio 1.0 (14_4) and 2.0 (28_8) native decoders. Author unknown, code from a mplayerhq
30 (originally from public domain player for Amiga at http://www.honeypot.net/audio)
82853318 31- Current version now also compiles with older GCC (Fabrice)
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32- 4X multimedia playback system including 4xm file demuxer (Mike
33 Melanson), and 4X video and audio codecs (Michael)
34- Creative YUV (CYUV) decoder (Mike Melanson)
35- FFV1 codec (our very simple lossless intra only codec, compresses much better
36 then huffyuv) (Michael)
37- ASV1 (Asus), H.264, Intel indeo3 codecs has been added (Various)
38- Tiny PNG encoder and decoder, tiny GIF decoder, PAM decoder (PPM with
39 alpha support), JPEG YUV colorspace support. (Fabrice Bellard)
40- ffplay has been replaced with a newer version which uses SDL (optionally)
41 for multi platform support (fabrice)
42- Sorenson Version 3 codec (SVQ3) support has been added (decoding only) - donated
43 by anonymous
44- AMR format has been added (Johannes Carlsson)
82853318 45- 3gp support has been added (Johannes Carlsson)
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46- VP3 codec has been added (Mike Melanson)
47- more MPEG-1/2 fixes
48- Better Multi platform support, MS Visual Studio fixes (various)
49- Altivec optimizations (Magnus Damn and others)
50- SH4 processor support has been added (BERO)
51- New public interfaces (avcodec_get_pix_fmt) (Roman Shaposhnick)
52- VOB Streaming support (Brian Foley)
53- Better MP3 Autodetection (Andriy Rysin)
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54- qpel encoding (Michael)
55- 4mv+b frames encoding finally fixed (Michael)
56- chroma ME (Michael)
57- 5 comparission functions for ME (Michael)
58- b frame encoding speedup (Michael)
e07702ba 59- wmv2 codec (unfinished - Michael)
d3d10087 60- user specified diamond size for EPZS (Michael)
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61- Playstation STR playback subsystem, still experimental (Mike and Michael)
62- ASV2 codec (Michael)
63- CLJR decoder (Alex)
d3d10087 64
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65.. And lots more new enhances and fixes.
66
d3d10087 67version 0.4.6:
739d6efa 68
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69- completely new integer only mpeg audio layer 1/2/3 decoder rewritten
70 from scratch.
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71- recoded dct and motion vector search with gcc (no longer depends on
72 nasm).
73- fix quantization bug in AC3 encoder.
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74- added PCM codecs and format. Corrected wav/avi/asf pcm issues.
75- added prototype ffplay program.
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76- added GOB header parsing on H.263/H.263+ decoder. (Juanjo)
77- bug fix on MCBPC tables of H.263. (Juanjo)
81401c1f 78- bug fix on DC coefficients of H.263. (Juanjo)
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79- added Advanced Prediction Mode on H.263/H.263+ decoder. (Juanjo)
80- now we can decode H.263 streams found on QuickTime files. (Juanjo)
81- now we can decode H.263 streams found on VIVO v1 files.(Juanjo)
82- preliminary RTP "friendly" mode for H.263/H.263+ coding. (Juanjo)
83- added GOB header for H.263/H.263+ coding on RTP mode. (Juanjo)
84- now H.263 picture size is returned on the first decoded frame. (Juanjo)
7f913a35 85- added first regression tests
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86- added MPEG2 TS demux
87- new demux API for libav
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88- more accurate and faster IDCT (Michael)
89- faster and entropy controlled motion search (Michael)
90- two pass video encoding (Michael)
91- new video rate control (Michael)
92- added MSMPEG4V1, MSMPEGV2 and WMV1 support (Michael)
93- great performance improvement of video encoders and decoders (Michael)
94- new and faster bit readers and vlc parsers (Michael)
95- high quality encoding mode : tries all macroblock/VLC types (Michael)
96- added DV video decoder
97- preliminary RTP/RTSP support in ffserver and libavformat
b963ee3b 98- H.263+ AIC decoding/encoding support. (Juanjo)
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99- VCD MPEG-PS mode. (Juanjo)
100- PSNR stuff. (Juanjo)
101- Simple stats output. (Juanjo)
a32072d0 102- 16-bit and 15-bit rgb/bgr/gbr support (Bisqwit)
739d6efa 103
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104version 0.4.5:
105
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106- some header fixes (Zdenek Kabelac &lt;kabi@informatics.muni.cz&gt;).
107- many MMX optimizations (Nick Kurshev &lt;nickols_k@mail.ru&gt;).
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108- added configure system (actually a small shell script).
109- added mpeg audio layer 1/2/3 decoding using LGPL'ed mpglib by
110 Michael Hipp (temporary solution - waiting for integer only
111 decoder).
112- fixed VIDIOCSYNC interrupt.
113- added Intel H263 decoding support ('I263' avi fourCC)
114- added Real Video 1.0 decoding (needs further testing).
115- simplified image formats again. Added PGM format (=grey
116 pgm). Renamed old PGM to PGMYUV.
117- fixed msmpeg4 slice issues (tell me if you still find problems).
118- fixed opendivx bugs with newer versions (added VOL header decoding).
119- added support for mplayer interface.
16fbebe1 120- added macroblock skip optimization.
0c1e384c 121- added MJPEG decoder.
16fbebe1 122- added mmx/mmxext idct from libmpeg2.
0c1e384c 123- added pgmyuvpipe, ppm, and ppm_pipe formats (original patch by Celer
e07702ba 124 &lt;celer@shell.scrypt.net&gt;).
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125- added pixel format convertion layer (e.g. for MJPEG or PPM).
126- added deinterlacing option.
4a8c7a7f 127- mpeg1/2 fixes.
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128- mpeg4 vol header fixes (Jonathan Marsden &lt;snmjbm@pacbell.net&gt;).
129- ARM optimizations (Lionel Ulmer &lt;lionel.ulmer@free.fr&gt;).
4a8c7a7f 130- Windows porting of file converter.
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131- added MJPEG raw format (input/ouput).
132- added JPEG image format support (input/output).
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133
134version 0.4.4:
135
136- fixed some std header definitions (Bjorn Lindgren
e07702ba 137 &lt;bjorn.e.lindgren@telia.com&gt;).
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138- added mpeg demux (mpeg 1 and 2 compatible).
139- added ASF demux.
140- added prototype RM demux.
141- added AC3 decoding (done with libac3 by Aaron Holtzman).
142- added decoding codec parameter guessing (.e.g. for mpeg, because the
143 header does not include them).
144- fixed header generation in mpeg1, AVI and ASF mux : wmplayer can now
145 play them (only tested video).
146- fixed h263 white bug.
147- fixed phase rounding in img resample filter.
148- add mmx code for polyphase img resample filter.
149- added CPU autodetect.
150- added generic title/author/copyright/comment string handling (ASF and RM use them).
151- added SWF demux to extract MP3 track (not usable yet because no MP3
152 decoder).
153- added fractional frame rate support.
154- codecs are no longer searched by read_header() (should fix ffserver
155 segfault).
156
157version 0.4.3:
158
e07702ba 159- BGR24 patch (initial patch by Jeroen Vreeken &lt;pe1rxq@amsat.org&gt;).
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160- fixed raw yuv output.
161- added motion rounding support in MPEG4.
162- fixed motion bug rounding in MSMPEG4.
163- added B frame handling in video core.
164- added full MPEG1 decoding support.
165- added partial (frame only) MPEG2 support.
166- changed the FOURCC code for H.263 to "U263" to be able to see the
167+AVI/H.263 file with the UB Video H.263+ decoder. MPlayer works with
168this +codec ;) (JuanJo).
169- Halfpel motion estimation after mb type selection (JuanJo).
170- added pgm and .Y.U.V output format.
171- suppressed 'img:' protocol. Simply use: /tmp/test%d.[pgm|Y] as input or
172 output.
173- added pgmpipe I/O format (original patch from Martin Aumueller
e07702ba 174 &lt;lists@reserv.at&gt;, but changed completely since we use a format
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175 instead of a protocol).
176
177version 0.4.2:
178
179- added H263/MPEG4/MSMPEG4 decoding support. MPEG4 decoding support
180 (for openDIVX) is almost complete: 8x8 MVs and rounding are
181 missing. MSMPEG4 support is complete.
182- added prototype MPEG1 decoder. Only I and P frames handled yet (it
183 can decode ffmpeg mpegs :-)).
184- added libavcodec API documentation (see apiexample.c).
185- fixed image polyphase bug (the bottom of some images could be
186 greenish).
187- added support for non clipped motion vectors (decoding only)
188 and image sizes non multiple of 16.
189- added support for AC prediction (decoding only).
190- added file overwrite confirmation (can be disabled with -y).
191- Added custom size picture to H.263 using H.263+ (Juanjo).
192
193version 0.4.1:
194
195- added MSMPEG4 (aka DIVX) compatible encoder. Changed default codec
196 of avi and asf to DIV3.
197- added -me option to set motion estimation method
198 (default=log). suppressed redundant -hq option.
199- added options -acodec and -vcodec to force a given codec (useful for
200 AVI for example).
201- fixed -an option.
202- improved dct_quantize speed.
203- factorized some motion estimation code.
204
205version 0.4.0:
206
207- removing grab code from ffserver and moved it to ffmpeg. Added multi
208 stream support to ffmpeg.
209- added timeshifting support for live feeds (option ?date=xxx in the
210 URL).
211- added high quality image resize code with polyphase filter (need
212 mmx/see optimisation). Enable multiple image size support in ffserver.
213- added multi live feed support in ffserver.
214- suppressed master feature from ffserver (it should be done with an
215 external program which opens the .ffm url and writes it to another
216 ffserver).
217- added preliminary support for video stream parsing (wav and avi half
218 done). Added proper support for audio/video file convertion in
219 ffmpeg.
220- added preliminary support for video file sending from ffserver.
221- redesigning I/O subsystem : now using URL based input and output
222 (see avio.h).
223- added wav format support.
224- added "tty user interface" to ffmpeg to stop grabbing gracefully.
225- added MMX/SSE optimizations to SAD (Sums of Absolutes Diferences)
e07702ba 226 (Juan J. Sierralta P. a.k.a. "Juanjo" &lt;juanjo@atmlab.utfsm.cl&gt;).
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227- added MMX DCT from mpeg2_movie 1.5 (Juanjo).
228- added new motion estimation algorithms, log and phods (Juanjo).
229- changed directories : libav for format handling, libavcodec for
230 codecs.
231
232version 0.3.4:
233
234- added stereo in mpeg audio encoder.
235
236version 0.3.3:
237
238- added 'high quality' mode which use motion vectors. It can be used in
239 real time at low resolution.
240- fixed rounding problems which caused quality problems at high
241 bitrates and large gop size.
242
243version 0.3.2: small fixes
244
245- asf fixes
246- put_seek bug fix
247
248version 0.3.1: added avi/divx support
249
250- added avi support
251- added mpeg4 codec compatible with open divx. It is based on the h263
252 codec.
253- added sound for flash format (not tested)
254
255version 0.3: initial public release