..
[libav.git] / Changelog
1 Upcoming version 0.4.7:
2
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)
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)
31 - wmv2 codec (unfinished - Michael)
32 - user specified diamond size for EPZS (Michael)
33
34 .. And lots more new enhances and fixes.
35
36 version 0.4.6:
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)
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)
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
67 - H.263+ AIC decoding/encoding support. (Juanjo)
68 - VCD MPEG-PS mode. (Juanjo)
69 - PSNR stuff. (Juanjo)
70 - Simple stats output. (Juanjo)
71 - 16-bit and 15-bit rgb/bgr/gbr support (Bisqwit)
72
73 version 0.4.5:
74
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.
89 - added macroblock skip optimization.
90 - added MJPEG decoder.
91 - added mmx/mmxext idct from libmpeg2.
92 - added pgmyuvpipe, ppm, and ppm_pipe formats (original patch by Celer
93 <celer@shell.scrypt.net>).
94 - added pixel format convertion layer (e.g. for MJPEG or PPM).
95 - added deinterlacing option.
96 - mpeg1/2 fixes.
97 - mpeg4 vol header fixes (Jonathan Marsden <snmjbm@pacbell.net>).
98 - ARM optimizations (Lionel Ulmer <lionel.ulmer@free.fr>).
99 - Windows porting of file converter.
100 - added MJPEG raw format (input/ouput).
101 - added JPEG image format support (input/output).
102
103 version 0.4.4:
104
105 - fixed some std header definitions (Bjorn Lindgren
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).
125
126 version 0.4.3:
127
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
137 this +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
143 <lists@reserv.at>, but changed completely since we use a format
144 instead of a protocol).
145
146 version 0.4.2:
147
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).
161
162 version 0.4.1:
163
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.
173
174 version 0.4.0:
175
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)
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.
200
201 version 0.3.4:
202
203 - added stereo in mpeg audio encoder.
204
205 version 0.3.3:
206
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.
211
212 version 0.3.2: small fixes
213
214 - asf fixes
215 - put_seek bug fix
216
217 version 0.3.1: added avi/divx support
218
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)
223
224 version 0.3: initial public release