split ff_h263_decode_mb() into h263 and mpeg4 versions
[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
2fdf638b 13
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14version 0.4.8:
15
16- MPEG2 video encoding (Michael)
d9d8910b 17- Id RoQ playback subsystem (Mike Melanson and Tim Ferguson)
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18- Wing Commander III Movie (.mve) file playback subsystem (Mike Melanson
19 and Mario Brito)
20- Xan DPCM audio decoder (Mario Brito)
186447f8 21- Interplay MVE playback subsystem (Mike Melanson)
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22- Duck DK3 and DK4 ADPCM audio decoders (Mike Melanson)
23
24version 0.4.7:
e07702ba 25
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26- RealAudio 1.0 (14_4) and 2.0 (28_8) native decoders. Author unknown, code from a mplayerhq
27 (originally from public domain player for Amiga at http://www.honeypot.net/audio)
82853318 28- Current version now also compiles with older GCC (Fabrice)
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29- 4X multimedia playback system including 4xm file demuxer (Mike
30 Melanson), and 4X video and audio codecs (Michael)
31- Creative YUV (CYUV) decoder (Mike Melanson)
32- FFV1 codec (our very simple lossless intra only codec, compresses much better
33 then huffyuv) (Michael)
34- ASV1 (Asus), H.264, Intel indeo3 codecs has been added (Various)
35- Tiny PNG encoder and decoder, tiny GIF decoder, PAM decoder (PPM with
36 alpha support), JPEG YUV colorspace support. (Fabrice Bellard)
37- ffplay has been replaced with a newer version which uses SDL (optionally)
38 for multi platform support (fabrice)
39- Sorenson Version 3 codec (SVQ3) support has been added (decoding only) - donated
40 by anonymous
41- AMR format has been added (Johannes Carlsson)
82853318 42- 3gp support has been added (Johannes Carlsson)
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43- VP3 codec has been added (Mike Melanson)
44- more MPEG-1/2 fixes
45- Better Multi platform support, MS Visual Studio fixes (various)
46- Altivec optimizations (Magnus Damn and others)
47- SH4 processor support has been added (BERO)
48- New public interfaces (avcodec_get_pix_fmt) (Roman Shaposhnick)
49- VOB Streaming support (Brian Foley)
50- Better MP3 Autodetection (Andriy Rysin)
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51- qpel encoding (Michael)
52- 4mv+b frames encoding finally fixed (Michael)
53- chroma ME (Michael)
54- 5 comparission functions for ME (Michael)
55- b frame encoding speedup (Michael)
e07702ba 56- wmv2 codec (unfinished - Michael)
d3d10087 57- user specified diamond size for EPZS (Michael)
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58- Playstation STR playback subsystem, still experimental (Mike and Michael)
59- ASV2 codec (Michael)
60- CLJR decoder (Alex)
d3d10087 61
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62.. And lots more new enhances and fixes.
63
d3d10087 64version 0.4.6:
739d6efa 65
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66- completely new integer only mpeg audio layer 1/2/3 decoder rewritten
67 from scratch.
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68- recoded dct and motion vector search with gcc (no longer depends on
69 nasm).
70- fix quantization bug in AC3 encoder.
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71- added PCM codecs and format. Corrected wav/avi/asf pcm issues.
72- added prototype ffplay program.
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73- added GOB header parsing on H.263/H.263+ decoder. (Juanjo)
74- bug fix on MCBPC tables of H.263. (Juanjo)
81401c1f 75- bug fix on DC coefficients of H.263. (Juanjo)
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76- added Advanced Prediction Mode on H.263/H.263+ decoder. (Juanjo)
77- now we can decode H.263 streams found on QuickTime files. (Juanjo)
78- now we can decode H.263 streams found on VIVO v1 files.(Juanjo)
79- preliminary RTP "friendly" mode for H.263/H.263+ coding. (Juanjo)
80- added GOB header for H.263/H.263+ coding on RTP mode. (Juanjo)
81- now H.263 picture size is returned on the first decoded frame. (Juanjo)
7f913a35 82- added first regression tests
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83- added MPEG2 TS demux
84- new demux API for libav
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85- more accurate and faster IDCT (Michael)
86- faster and entropy controlled motion search (Michael)
87- two pass video encoding (Michael)
88- new video rate control (Michael)
89- added MSMPEG4V1, MSMPEGV2 and WMV1 support (Michael)
90- great performance improvement of video encoders and decoders (Michael)
91- new and faster bit readers and vlc parsers (Michael)
92- high quality encoding mode : tries all macroblock/VLC types (Michael)
93- added DV video decoder
94- preliminary RTP/RTSP support in ffserver and libavformat
b963ee3b 95- H.263+ AIC decoding/encoding support. (Juanjo)
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96- VCD MPEG-PS mode. (Juanjo)
97- PSNR stuff. (Juanjo)
98- Simple stats output. (Juanjo)
a32072d0 99- 16-bit and 15-bit rgb/bgr/gbr support (Bisqwit)
739d6efa 100
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101version 0.4.5:
102
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103- some header fixes (Zdenek Kabelac &lt;kabi@informatics.muni.cz&gt;).
104- many MMX optimizations (Nick Kurshev &lt;nickols_k@mail.ru&gt;).
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105- added configure system (actually a small shell script).
106- added mpeg audio layer 1/2/3 decoding using LGPL'ed mpglib by
107 Michael Hipp (temporary solution - waiting for integer only
108 decoder).
109- fixed VIDIOCSYNC interrupt.
110- added Intel H263 decoding support ('I263' avi fourCC)
111- added Real Video 1.0 decoding (needs further testing).
112- simplified image formats again. Added PGM format (=grey
113 pgm). Renamed old PGM to PGMYUV.
114- fixed msmpeg4 slice issues (tell me if you still find problems).
115- fixed opendivx bugs with newer versions (added VOL header decoding).
116- added support for mplayer interface.
16fbebe1 117- added macroblock skip optimization.
0c1e384c 118- added MJPEG decoder.
16fbebe1 119- added mmx/mmxext idct from libmpeg2.
0c1e384c 120- added pgmyuvpipe, ppm, and ppm_pipe formats (original patch by Celer
e07702ba 121 &lt;celer@shell.scrypt.net&gt;).
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122- added pixel format convertion layer (e.g. for MJPEG or PPM).
123- added deinterlacing option.
4a8c7a7f 124- mpeg1/2 fixes.
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125- mpeg4 vol header fixes (Jonathan Marsden &lt;snmjbm@pacbell.net&gt;).
126- ARM optimizations (Lionel Ulmer &lt;lionel.ulmer@free.fr&gt;).
4a8c7a7f 127- Windows porting of file converter.
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128- added MJPEG raw format (input/ouput).
129- added JPEG image format support (input/output).
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130
131version 0.4.4:
132
133- fixed some std header definitions (Bjorn Lindgren
e07702ba 134 &lt;bjorn.e.lindgren@telia.com&gt;).
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135- added mpeg demux (mpeg 1 and 2 compatible).
136- added ASF demux.
137- added prototype RM demux.
138- added AC3 decoding (done with libac3 by Aaron Holtzman).
139- added decoding codec parameter guessing (.e.g. for mpeg, because the
140 header does not include them).
141- fixed header generation in mpeg1, AVI and ASF mux : wmplayer can now
142 play them (only tested video).
143- fixed h263 white bug.
144- fixed phase rounding in img resample filter.
145- add mmx code for polyphase img resample filter.
146- added CPU autodetect.
147- added generic title/author/copyright/comment string handling (ASF and RM use them).
148- added SWF demux to extract MP3 track (not usable yet because no MP3
149 decoder).
150- added fractional frame rate support.
151- codecs are no longer searched by read_header() (should fix ffserver
152 segfault).
153
154version 0.4.3:
155
e07702ba 156- BGR24 patch (initial patch by Jeroen Vreeken &lt;pe1rxq@amsat.org&gt;).
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157- fixed raw yuv output.
158- added motion rounding support in MPEG4.
159- fixed motion bug rounding in MSMPEG4.
160- added B frame handling in video core.
161- added full MPEG1 decoding support.
162- added partial (frame only) MPEG2 support.
163- changed the FOURCC code for H.263 to "U263" to be able to see the
164+AVI/H.263 file with the UB Video H.263+ decoder. MPlayer works with
165this +codec ;) (JuanJo).
166- Halfpel motion estimation after mb type selection (JuanJo).
167- added pgm and .Y.U.V output format.
168- suppressed 'img:' protocol. Simply use: /tmp/test%d.[pgm|Y] as input or
169 output.
170- added pgmpipe I/O format (original patch from Martin Aumueller
e07702ba 171 &lt;lists@reserv.at&gt;, but changed completely since we use a format
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172 instead of a protocol).
173
174version 0.4.2:
175
176- added H263/MPEG4/MSMPEG4 decoding support. MPEG4 decoding support
177 (for openDIVX) is almost complete: 8x8 MVs and rounding are
178 missing. MSMPEG4 support is complete.
179- added prototype MPEG1 decoder. Only I and P frames handled yet (it
180 can decode ffmpeg mpegs :-)).
181- added libavcodec API documentation (see apiexample.c).
182- fixed image polyphase bug (the bottom of some images could be
183 greenish).
184- added support for non clipped motion vectors (decoding only)
185 and image sizes non multiple of 16.
186- added support for AC prediction (decoding only).
187- added file overwrite confirmation (can be disabled with -y).
188- Added custom size picture to H.263 using H.263+ (Juanjo).
189
190version 0.4.1:
191
192- added MSMPEG4 (aka DIVX) compatible encoder. Changed default codec
193 of avi and asf to DIV3.
194- added -me option to set motion estimation method
195 (default=log). suppressed redundant -hq option.
196- added options -acodec and -vcodec to force a given codec (useful for
197 AVI for example).
198- fixed -an option.
199- improved dct_quantize speed.
200- factorized some motion estimation code.
201
202version 0.4.0:
203
204- removing grab code from ffserver and moved it to ffmpeg. Added multi
205 stream support to ffmpeg.
206- added timeshifting support for live feeds (option ?date=xxx in the
207 URL).
208- added high quality image resize code with polyphase filter (need
209 mmx/see optimisation). Enable multiple image size support in ffserver.
210- added multi live feed support in ffserver.
211- suppressed master feature from ffserver (it should be done with an
212 external program which opens the .ffm url and writes it to another
213 ffserver).
214- added preliminary support for video stream parsing (wav and avi half
215 done). Added proper support for audio/video file convertion in
216 ffmpeg.
217- added preliminary support for video file sending from ffserver.
218- redesigning I/O subsystem : now using URL based input and output
219 (see avio.h).
220- added wav format support.
221- added "tty user interface" to ffmpeg to stop grabbing gracefully.
222- added MMX/SSE optimizations to SAD (Sums of Absolutes Diferences)
e07702ba 223 (Juan J. Sierralta P. a.k.a. "Juanjo" &lt;juanjo@atmlab.utfsm.cl&gt;).
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224- added MMX DCT from mpeg2_movie 1.5 (Juanjo).
225- added new motion estimation algorithms, log and phods (Juanjo).
226- changed directories : libav for format handling, libavcodec for
227 codecs.
228
229version 0.3.4:
230
231- added stereo in mpeg audio encoder.
232
233version 0.3.3:
234
235- added 'high quality' mode which use motion vectors. It can be used in
236 real time at low resolution.
237- fixed rounding problems which caused quality problems at high
238 bitrates and large gop size.
239
240version 0.3.2: small fixes
241
242- asf fixes
243- put_seek bug fix
244
245version 0.3.1: added avi/divx support
246
247- added avi support
248- added mpeg4 codec compatible with open divx. It is based on the h263
249 codec.
250- added sound for flash format (not tested)
251
252version 0.3: initial public release