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