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[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
070ed1bc 5- Apple Animation (RLE) decoder
42cad81a 6- Apple Graphics (SMC) decoder
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7- Apple Video (RPZA) decoder
8- Cinepak decoder
9- Sega FILM (CPK) file demuxer
42cad81a 10- Westwood multimedia support (VQA & AUD files)
4120a53a 11- Id Quake II CIN playback support
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12- 8BPS video decoder
13- FLIC playback support
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14- RealVideo 2.0 (RV20) decoder
15- Duck TrueMotion v1 (DUCK) video decoder
da00f30e 16- Sierra VMD demuxer and video decoder
3b64893d 17- SVQ1 video encoder
2fdf638b 18
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19version 0.4.8:
20
21- MPEG2 video encoding (Michael)
d9d8910b 22- Id RoQ playback subsystem (Mike Melanson and Tim Ferguson)
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23- Wing Commander III Movie (.mve) file playback subsystem (Mike Melanson
24 and Mario Brito)
25- Xan DPCM audio decoder (Mario Brito)
186447f8 26- Interplay MVE playback subsystem (Mike Melanson)
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27- Duck DK3 and DK4 ADPCM audio decoders (Mike Melanson)
28
29version 0.4.7:
e07702ba 30
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31- RealAudio 1.0 (14_4) and 2.0 (28_8) native decoders. Author unknown, code from a mplayerhq
32 (originally from public domain player for Amiga at http://www.honeypot.net/audio)
82853318 33- Current version now also compiles with older GCC (Fabrice)
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34- 4X multimedia playback system including 4xm file demuxer (Mike
35 Melanson), and 4X video and audio codecs (Michael)
36- Creative YUV (CYUV) decoder (Mike Melanson)
37- FFV1 codec (our very simple lossless intra only codec, compresses much better
38 then huffyuv) (Michael)
39- ASV1 (Asus), H.264, Intel indeo3 codecs has been added (Various)
40- Tiny PNG encoder and decoder, tiny GIF decoder, PAM decoder (PPM with
41 alpha support), JPEG YUV colorspace support. (Fabrice Bellard)
42- ffplay has been replaced with a newer version which uses SDL (optionally)
43 for multi platform support (fabrice)
44- Sorenson Version 3 codec (SVQ3) support has been added (decoding only) - donated
45 by anonymous
46- AMR format has been added (Johannes Carlsson)
82853318 47- 3gp support has been added (Johannes Carlsson)
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48- VP3 codec has been added (Mike Melanson)
49- more MPEG-1/2 fixes
50- Better Multi platform support, MS Visual Studio fixes (various)
51- Altivec optimizations (Magnus Damn and others)
52- SH4 processor support has been added (BERO)
53- New public interfaces (avcodec_get_pix_fmt) (Roman Shaposhnick)
54- VOB Streaming support (Brian Foley)
55- Better MP3 Autodetection (Andriy Rysin)
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56- qpel encoding (Michael)
57- 4mv+b frames encoding finally fixed (Michael)
58- chroma ME (Michael)
59- 5 comparission functions for ME (Michael)
60- b frame encoding speedup (Michael)
e07702ba 61- wmv2 codec (unfinished - Michael)
d3d10087 62- user specified diamond size for EPZS (Michael)
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63- Playstation STR playback subsystem, still experimental (Mike and Michael)
64- ASV2 codec (Michael)
65- CLJR decoder (Alex)
d3d10087 66
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67.. And lots more new enhances and fixes.
68
d3d10087 69version 0.4.6:
739d6efa 70
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71- completely new integer only mpeg audio layer 1/2/3 decoder rewritten
72 from scratch.
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73- recoded dct and motion vector search with gcc (no longer depends on
74 nasm).
75- fix quantization bug in AC3 encoder.
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76- added PCM codecs and format. Corrected wav/avi/asf pcm issues.
77- added prototype ffplay program.
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78- added GOB header parsing on H.263/H.263+ decoder. (Juanjo)
79- bug fix on MCBPC tables of H.263. (Juanjo)
81401c1f 80- bug fix on DC coefficients of H.263. (Juanjo)
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81- added Advanced Prediction Mode on H.263/H.263+ decoder. (Juanjo)
82- now we can decode H.263 streams found on QuickTime files. (Juanjo)
83- now we can decode H.263 streams found on VIVO v1 files.(Juanjo)
84- preliminary RTP "friendly" mode for H.263/H.263+ coding. (Juanjo)
85- added GOB header for H.263/H.263+ coding on RTP mode. (Juanjo)
86- now H.263 picture size is returned on the first decoded frame. (Juanjo)
7f913a35 87- added first regression tests
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88- added MPEG2 TS demux
89- new demux API for libav
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90- more accurate and faster IDCT (Michael)
91- faster and entropy controlled motion search (Michael)
92- two pass video encoding (Michael)
93- new video rate control (Michael)
94- added MSMPEG4V1, MSMPEGV2 and WMV1 support (Michael)
95- great performance improvement of video encoders and decoders (Michael)
96- new and faster bit readers and vlc parsers (Michael)
97- high quality encoding mode : tries all macroblock/VLC types (Michael)
98- added DV video decoder
99- preliminary RTP/RTSP support in ffserver and libavformat
b963ee3b 100- H.263+ AIC decoding/encoding support. (Juanjo)
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101- VCD MPEG-PS mode. (Juanjo)
102- PSNR stuff. (Juanjo)
103- Simple stats output. (Juanjo)
a32072d0 104- 16-bit and 15-bit rgb/bgr/gbr support (Bisqwit)
739d6efa 105
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106version 0.4.5:
107
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108- some header fixes (Zdenek Kabelac &lt;kabi@informatics.muni.cz&gt;).
109- many MMX optimizations (Nick Kurshev &lt;nickols_k@mail.ru&gt;).
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110- added configure system (actually a small shell script).
111- added mpeg audio layer 1/2/3 decoding using LGPL'ed mpglib by
112 Michael Hipp (temporary solution - waiting for integer only
113 decoder).
114- fixed VIDIOCSYNC interrupt.
115- added Intel H263 decoding support ('I263' avi fourCC)
116- added Real Video 1.0 decoding (needs further testing).
117- simplified image formats again. Added PGM format (=grey
118 pgm). Renamed old PGM to PGMYUV.
119- fixed msmpeg4 slice issues (tell me if you still find problems).
120- fixed opendivx bugs with newer versions (added VOL header decoding).
121- added support for mplayer interface.
16fbebe1 122- added macroblock skip optimization.
0c1e384c 123- added MJPEG decoder.
16fbebe1 124- added mmx/mmxext idct from libmpeg2.
0c1e384c 125- added pgmyuvpipe, ppm, and ppm_pipe formats (original patch by Celer
e07702ba 126 &lt;celer@shell.scrypt.net&gt;).
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127- added pixel format convertion layer (e.g. for MJPEG or PPM).
128- added deinterlacing option.
4a8c7a7f 129- mpeg1/2 fixes.
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130- mpeg4 vol header fixes (Jonathan Marsden &lt;snmjbm@pacbell.net&gt;).
131- ARM optimizations (Lionel Ulmer &lt;lionel.ulmer@free.fr&gt;).
4a8c7a7f 132- Windows porting of file converter.
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133- added MJPEG raw format (input/ouput).
134- added JPEG image format support (input/output).
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135
136version 0.4.4:
137
138- fixed some std header definitions (Bjorn Lindgren
e07702ba 139 &lt;bjorn.e.lindgren@telia.com&gt;).
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140- added mpeg demux (mpeg 1 and 2 compatible).
141- added ASF demux.
142- added prototype RM demux.
143- added AC3 decoding (done with libac3 by Aaron Holtzman).
144- added decoding codec parameter guessing (.e.g. for mpeg, because the
145 header does not include them).
146- fixed header generation in mpeg1, AVI and ASF mux : wmplayer can now
147 play them (only tested video).
148- fixed h263 white bug.
149- fixed phase rounding in img resample filter.
150- add mmx code for polyphase img resample filter.
151- added CPU autodetect.
152- added generic title/author/copyright/comment string handling (ASF and RM use them).
153- added SWF demux to extract MP3 track (not usable yet because no MP3
154 decoder).
155- added fractional frame rate support.
156- codecs are no longer searched by read_header() (should fix ffserver
157 segfault).
158
159version 0.4.3:
160
e07702ba 161- BGR24 patch (initial patch by Jeroen Vreeken &lt;pe1rxq@amsat.org&gt;).
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162- fixed raw yuv output.
163- added motion rounding support in MPEG4.
164- fixed motion bug rounding in MSMPEG4.
165- added B frame handling in video core.
166- added full MPEG1 decoding support.
167- added partial (frame only) MPEG2 support.
168- changed the FOURCC code for H.263 to "U263" to be able to see the
169+AVI/H.263 file with the UB Video H.263+ decoder. MPlayer works with
170this +codec ;) (JuanJo).
171- Halfpel motion estimation after mb type selection (JuanJo).
172- added pgm and .Y.U.V output format.
173- suppressed 'img:' protocol. Simply use: /tmp/test%d.[pgm|Y] as input or
174 output.
175- added pgmpipe I/O format (original patch from Martin Aumueller
e07702ba 176 &lt;lists@reserv.at&gt;, but changed completely since we use a format
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177 instead of a protocol).
178
179version 0.4.2:
180
181- added H263/MPEG4/MSMPEG4 decoding support. MPEG4 decoding support
182 (for openDIVX) is almost complete: 8x8 MVs and rounding are
183 missing. MSMPEG4 support is complete.
184- added prototype MPEG1 decoder. Only I and P frames handled yet (it
185 can decode ffmpeg mpegs :-)).
186- added libavcodec API documentation (see apiexample.c).
187- fixed image polyphase bug (the bottom of some images could be
188 greenish).
189- added support for non clipped motion vectors (decoding only)
190 and image sizes non multiple of 16.
191- added support for AC prediction (decoding only).
192- added file overwrite confirmation (can be disabled with -y).
193- Added custom size picture to H.263 using H.263+ (Juanjo).
194
195version 0.4.1:
196
197- added MSMPEG4 (aka DIVX) compatible encoder. Changed default codec
198 of avi and asf to DIV3.
199- added -me option to set motion estimation method
200 (default=log). suppressed redundant -hq option.
201- added options -acodec and -vcodec to force a given codec (useful for
202 AVI for example).
203- fixed -an option.
204- improved dct_quantize speed.
205- factorized some motion estimation code.
206
207version 0.4.0:
208
209- removing grab code from ffserver and moved it to ffmpeg. Added multi
210 stream support to ffmpeg.
211- added timeshifting support for live feeds (option ?date=xxx in the
212 URL).
213- added high quality image resize code with polyphase filter (need
214 mmx/see optimisation). Enable multiple image size support in ffserver.
215- added multi live feed support in ffserver.
216- suppressed master feature from ffserver (it should be done with an
217 external program which opens the .ffm url and writes it to another
218 ffserver).
219- added preliminary support for video stream parsing (wav and avi half
220 done). Added proper support for audio/video file convertion in
221 ffmpeg.
222- added preliminary support for video file sending from ffserver.
223- redesigning I/O subsystem : now using URL based input and output
224 (see avio.h).
225- added wav format support.
226- added "tty user interface" to ffmpeg to stop grabbing gracefully.
227- added MMX/SSE optimizations to SAD (Sums of Absolutes Diferences)
e07702ba 228 (Juan J. Sierralta P. a.k.a. "Juanjo" &lt;juanjo@atmlab.utfsm.cl&gt;).
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229- added MMX DCT from mpeg2_movie 1.5 (Juanjo).
230- added new motion estimation algorithms, log and phods (Juanjo).
231- changed directories : libav for format handling, libavcodec for
232 codecs.
233
234version 0.3.4:
235
236- added stereo in mpeg audio encoder.
237
238version 0.3.3:
239
240- added 'high quality' mode which use motion vectors. It can be used in
241 real time at low resolution.
242- fixed rounding problems which caused quality problems at high
243 bitrates and large gop size.
244
245version 0.3.2: small fixes
246
247- asf fixes
248- put_seek bug fix
249
250version 0.3.1: added avi/divx support
251
252- added avi support
253- added mpeg4 codec compatible with open divx. It is based on the h263
254 codec.
255- added sound for flash format (not tested)
256
257version 0.3: initial public release