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