[libav.git] / Changelog
b1a12657 1Upcoming version 0.4.7:
e07702ba 2
82853318 3- Current version now also compiles with older GCC (Fabrice)
4- 4X multimedia playback system including 4xm file demuxer (Mike
5 Melanson), and 4X video and audio codecs (Michael)
6- Creative YUV (CYUV) decoder (Mike Melanson)
7- FFV1 codec (our very simple lossless intra only codec, compresses much better
8 then huffyuv) (Michael)
9- ASV1 (Asus), H.264, Intel indeo3 codecs has been added (Various)
10- Tiny PNG encoder and decoder, tiny GIF decoder, PAM decoder (PPM with
11 alpha support), JPEG YUV colorspace support. (Fabrice Bellard)
12- ffplay has been replaced with a newer version which uses SDL (optionally)
13 for multi platform support (fabrice)
14- Sorenson Version 3 codec (SVQ3) support has been added (decoding only) - donated
15 by anonymous
16- AMR format has been added (Johannes Carlsson)
82853318 17- 3gp support has been added (Johannes Carlsson)
18- VP3 codec has been added (Mike Melanson)
19- more MPEG-1/2 fixes
20- Better Multi platform support, MS Visual Studio fixes (various)
21- Altivec optimizations (Magnus Damn and others)
22- SH4 processor support has been added (BERO)
23- New public interfaces (avcodec_get_pix_fmt) (Roman Shaposhnick)
24- VOB Streaming support (Brian Foley)
25- Better MP3 Autodetection (Andriy Rysin)
26- qpel encoding (Michael)
27- 4mv+b frames encoding finally fixed (Michael)
28- chroma ME (Michael)
29- 5 comparission functions for ME (Michael)
30- b frame encoding speedup (Michael)
e07702ba 31- wmv2 codec (unfinished - Michael)
32- user specified diamond size for EPZS (Michael)
34.. And lots more new enhances and fixes.
d3d10087 36version 0.4.6:
739d6efa 37
38- completely new integer only mpeg audio layer 1/2/3 decoder rewritten
39 from scratch.
40- recoded dct and motion vector search with gcc (no longer depends on
41 nasm).
42- fix quantization bug in AC3 encoder.
43- added PCM codecs and format. Corrected wav/avi/asf pcm issues.
44- added prototype ffplay program.
45- added GOB header parsing on H.263/H.263+ decoder. (Juanjo)
46- bug fix on MCBPC tables of H.263. (Juanjo)
81401c1f 47- bug fix on DC coefficients of H.263. (Juanjo)
48- added Advanced Prediction Mode on H.263/H.263+ decoder. (Juanjo)
49- now we can decode H.263 streams found on QuickTime files. (Juanjo)
50- now we can decode H.263 streams found on VIVO v1 files.(Juanjo)
51- preliminary RTP "friendly" mode for H.263/H.263+ coding. (Juanjo)
52- added GOB header for H.263/H.263+ coding on RTP mode. (Juanjo)
53- now H.263 picture size is returned on the first decoded frame. (Juanjo)
7f913a35 54- added first regression tests
55- added MPEG2 TS demux
56- new demux API for libav
57- more accurate and faster IDCT (Michael)
58- faster and entropy controlled motion search (Michael)
59- two pass video encoding (Michael)
60- new video rate control (Michael)
61- added MSMPEG4V1, MSMPEGV2 and WMV1 support (Michael)
62- great performance improvement of video encoders and decoders (Michael)
63- new and faster bit readers and vlc parsers (Michael)
64- high quality encoding mode : tries all macroblock/VLC types (Michael)
65- added DV video decoder
66- preliminary RTP/RTSP support in ffserver and libavformat
b963ee3b 67- H.263+ AIC decoding/encoding support. (Juanjo)
68- VCD MPEG-PS mode. (Juanjo)
69- PSNR stuff. (Juanjo)
70- Simple stats output. (Juanjo)
a32072d0 71- 16-bit and 15-bit rgb/bgr/gbr support (Bisqwit)
739d6efa 72
73version 0.4.5:
75- some header fixes (Zdenek Kabelac <kabi@informatics.muni.cz>).
76- many MMX optimizations (Nick Kurshev <nickols_k@mail.ru>).
77- added configure system (actually a small shell script).
78- added mpeg audio layer 1/2/3 decoding using LGPL'ed mpglib by
79 Michael Hipp (temporary solution - waiting for integer only
80 decoder).
81- fixed VIDIOCSYNC interrupt.
82- added Intel H263 decoding support ('I263' avi fourCC)
83- added Real Video 1.0 decoding (needs further testing).
84- simplified image formats again. Added PGM format (=grey
85 pgm). Renamed old PGM to PGMYUV.
86- fixed msmpeg4 slice issues (tell me if you still find problems).
87- fixed opendivx bugs with newer versions (added VOL header decoding).
88- added support for mplayer interface.
16fbebe1 89- added macroblock skip optimization.
0c1e384c 90- added MJPEG decoder.
16fbebe1 91- added mmx/mmxext idct from libmpeg2.
0c1e384c 92- added pgmyuvpipe, ppm, and ppm_pipe formats (original patch by Celer
e07702ba 93 <celer@shell.scrypt.net>).
94- added pixel format convertion layer (e.g. for MJPEG or PPM).
95- added deinterlacing option.
4a8c7a7f 96- mpeg1/2 fixes.
97- mpeg4 vol header fixes (Jonathan Marsden <snmjbm@pacbell.net>).
98- ARM optimizations (Lionel Ulmer <lionel.ulmer@free.fr>).
4a8c7a7f 99- Windows porting of file converter.
100- added MJPEG raw format (input/ouput).
101- added JPEG image format support (input/output).
103version 0.4.4:
105- fixed some std header definitions (Bjorn Lindgren
e07702ba 106 <bjorn.e.lindgren@telia.com>).
107- added mpeg demux (mpeg 1 and 2 compatible).
108- added ASF demux.
109- added prototype RM demux.
110- added AC3 decoding (done with libac3 by Aaron Holtzman).
111- added decoding codec parameter guessing (.e.g. for mpeg, because the
112 header does not include them).
113- fixed header generation in mpeg1, AVI and ASF mux : wmplayer can now
114 play them (only tested video).
115- fixed h263 white bug.
116- fixed phase rounding in img resample filter.
117- add mmx code for polyphase img resample filter.
118- added CPU autodetect.
119- added generic title/author/copyright/comment string handling (ASF and RM use them).
120- added SWF demux to extract MP3 track (not usable yet because no MP3
121 decoder).
122- added fractional frame rate support.
123- codecs are no longer searched by read_header() (should fix ffserver
124 segfault).
126version 0.4.3:
e07702ba 128- BGR24 patch (initial patch by Jeroen Vreeken <pe1rxq@amsat.org>).
129- fixed raw yuv output.
130- added motion rounding support in MPEG4.
131- fixed motion bug rounding in MSMPEG4.
132- added B frame handling in video core.
133- added full MPEG1 decoding support.
134- added partial (frame only) MPEG2 support.
135- changed the FOURCC code for H.263 to "U263" to be able to see the
136+AVI/H.263 file with the UB Video H.263+ decoder. MPlayer works with
137this +codec ;) (JuanJo).
138- Halfpel motion estimation after mb type selection (JuanJo).
139- added pgm and .Y.U.V output format.
140- suppressed 'img:' protocol. Simply use: /tmp/test%d.[pgm|Y] as input or
141 output.
142- added pgmpipe I/O format (original patch from Martin Aumueller
e07702ba 143 <lists@reserv.at>, but changed completely since we use a format
144 instead of a protocol).
146version 0.4.2:
148- added H263/MPEG4/MSMPEG4 decoding support. MPEG4 decoding support
149 (for openDIVX) is almost complete: 8x8 MVs and rounding are
150 missing. MSMPEG4 support is complete.
151- added prototype MPEG1 decoder. Only I and P frames handled yet (it
152 can decode ffmpeg mpegs :-)).
153- added libavcodec API documentation (see apiexample.c).
154- fixed image polyphase bug (the bottom of some images could be
155 greenish).
156- added support for non clipped motion vectors (decoding only)
157 and image sizes non multiple of 16.
158- added support for AC prediction (decoding only).
159- added file overwrite confirmation (can be disabled with -y).
160- Added custom size picture to H.263 using H.263+ (Juanjo).
162version 0.4.1:
164- added MSMPEG4 (aka DIVX) compatible encoder. Changed default codec
165 of avi and asf to DIV3.
166- added -me option to set motion estimation method
167 (default=log). suppressed redundant -hq option.
168- added options -acodec and -vcodec to force a given codec (useful for
169 AVI for example).
170- fixed -an option.
171- improved dct_quantize speed.
172- factorized some motion estimation code.
174version 0.4.0:
176- removing grab code from ffserver and moved it to ffmpeg. Added multi
177 stream support to ffmpeg.
178- added timeshifting support for live feeds (option ?date=xxx in the
179 URL).
180- added high quality image resize code with polyphase filter (need
181 mmx/see optimisation). Enable multiple image size support in ffserver.
182- added multi live feed support in ffserver.
183- suppressed master feature from ffserver (it should be done with an
184 external program which opens the .ffm url and writes it to another
185 ffserver).
186- added preliminary support for video stream parsing (wav and avi half
187 done). Added proper support for audio/video file convertion in
188 ffmpeg.
189- added preliminary support for video file sending from ffserver.
190- redesigning I/O subsystem : now using URL based input and output
191 (see avio.h).
192- added wav format support.
193- added "tty user interface" to ffmpeg to stop grabbing gracefully.
194- added MMX/SSE optimizations to SAD (Sums of Absolutes Diferences)
e07702ba 195 (Juan J. Sierralta P. a.k.a. "Juanjo" <juanjo@atmlab.utfsm.cl>).
196- added MMX DCT from mpeg2_movie 1.5 (Juanjo).
197- added new motion estimation algorithms, log and phods (Juanjo).
198- changed directories : libav for format handling, libavcodec for
199 codecs.
201version 0.3.4:
203- added stereo in mpeg audio encoder.
205version 0.3.3:
207- added 'high quality' mode which use motion vectors. It can be used in
208 real time at low resolution.
209- fixed rounding problems which caused quality problems at high
210 bitrates and large gop size.
212version 0.3.2: small fixes
214- asf fixes
215- put_seek bug fix
217version 0.3.1: added avi/divx support
219- added avi support
220- added mpeg4 codec compatible with open divx. It is based on the h263
221 codec.
222- added sound for flash format (not tested)
224version 0.3: initial public release