3fe60fd40b2ce816ca2f92d869987e57b589fe0a
[libav.git] / Changelog
1 Upcoming version 0.4.7:
2
3 - 4X multimedia playback system including 4xm file demuxer (Mike
4 Melanson), and 4X video and audio codecs (Michael)
5 - Creative YUV (CYUV) decoder (Mike Melanson)
6 - FFV1 codec (our very simple lossless intra only codec, compresses much better
7 then huffyuv) (Michael)
8 - ASV1 (Asus), H.264, Intel indeo3 codecs has been added (Various)
9 - Tiny PNG encoder and decoder, tiny GIF decoder, PAM decoder (PPM with
10 alpha support), JPEG YUV colorspace support. (Fabrice Bellard)
11 - ffplay has been replaced with a newer version which uses SDL (optionally)
12 for multi platform support (fabrice)
13 - Sorenson Version 3 codec (SVQ3) support has been added (decoding only) - donated
14 by anonymous
15 - AMR format has been added (Johannes Carlsson)
16 - 3gp support has been added (Johannes Carlsson, improved by Johannes Carlsson)
17 - VP3 codec has been added (Mike Melanson)
18 - more MPEG-1/2 fixes
19 - Better Multi platform support, MS Visual Studio fixes (various)
20 - Altivec optimizations (Magnus Damn and others)
21 - SH4 processor support has been added (BERO)
22 - New public interfaces (avcodec_get_pix_fmt) (Roman Shaposhnick)
23 - VOB Streaming support (Brian Foley)
24 - Better MP3 Autodetection (Andriy Rysin)
25 - qpel encoding (Michael)
26 - 4mv+b frames encoding finally fixed (Michael)
27 - chroma ME (Michael)
28 - 5 comparission functions for ME (Michael)
29 - b frame encoding speedup (Michael)
30 - wmv2 codec (unfinished - Michael)
31 - user specified diamond size for EPZS (Michael)
32
33 .. And lots more new enhances and fixes.
34
35 version 0.4.6:
36
37 - completely new integer only mpeg audio layer 1/2/3 decoder rewritten
38 from scratch.
39 - recoded dct and motion vector search with gcc (no longer depends on
40 nasm).
41 - fix quantization bug in AC3 encoder.
42 - added PCM codecs and format. Corrected wav/avi/asf pcm issues.
43 - added prototype ffplay program.
44 - added GOB header parsing on H.263/H.263+ decoder. (Juanjo)
45 - bug fix on MCBPC tables of H.263. (Juanjo)
46 - bug fix on DC coefficients of H.263. (Juanjo)
47 - added Advanced Prediction Mode on H.263/H.263+ decoder. (Juanjo)
48 - now we can decode H.263 streams found on QuickTime files. (Juanjo)
49 - now we can decode H.263 streams found on VIVO v1 files.(Juanjo)
50 - preliminary RTP "friendly" mode for H.263/H.263+ coding. (Juanjo)
51 - added GOB header for H.263/H.263+ coding on RTP mode. (Juanjo)
52 - now H.263 picture size is returned on the first decoded frame. (Juanjo)
53 - added first regression tests
54 - added MPEG2 TS demux
55 - new demux API for libav
56 - more accurate and faster IDCT (Michael)
57 - faster and entropy controlled motion search (Michael)
58 - two pass video encoding (Michael)
59 - new video rate control (Michael)
60 - added MSMPEG4V1, MSMPEGV2 and WMV1 support (Michael)
61 - great performance improvement of video encoders and decoders (Michael)
62 - new and faster bit readers and vlc parsers (Michael)
63 - high quality encoding mode : tries all macroblock/VLC types (Michael)
64 - added DV video decoder
65 - preliminary RTP/RTSP support in ffserver and libavformat
66 - H.263+ AIC decoding/encoding support. (Juanjo)
67 - VCD MPEG-PS mode. (Juanjo)
68 - PSNR stuff. (Juanjo)
69 - Simple stats output. (Juanjo)
70 - 16-bit and 15-bit rgb/bgr/gbr support (Bisqwit)
71
72 version 0.4.5:
73
74 - some header fixes (Zdenek Kabelac <kabi@informatics.muni.cz>).
75 - many MMX optimizations (Nick Kurshev <nickols_k@mail.ru>).
76 - added configure system (actually a small shell script).
77 - added mpeg audio layer 1/2/3 decoding using LGPL'ed mpglib by
78 Michael Hipp (temporary solution - waiting for integer only
79 decoder).
80 - fixed VIDIOCSYNC interrupt.
81 - added Intel H263 decoding support ('I263' avi fourCC)
82 - added Real Video 1.0 decoding (needs further testing).
83 - simplified image formats again. Added PGM format (=grey
84 pgm). Renamed old PGM to PGMYUV.
85 - fixed msmpeg4 slice issues (tell me if you still find problems).
86 - fixed opendivx bugs with newer versions (added VOL header decoding).
87 - added support for mplayer interface.
88 - added macroblock skip optimization.
89 - added MJPEG decoder.
90 - added mmx/mmxext idct from libmpeg2.
91 - added pgmyuvpipe, ppm, and ppm_pipe formats (original patch by Celer
92 <celer@shell.scrypt.net>).
93 - added pixel format convertion layer (e.g. for MJPEG or PPM).
94 - added deinterlacing option.
95 - mpeg1/2 fixes.
96 - mpeg4 vol header fixes (Jonathan Marsden <snmjbm@pacbell.net>).
97 - ARM optimizations (Lionel Ulmer <lionel.ulmer@free.fr>).
98 - Windows porting of file converter.
99 - added MJPEG raw format (input/ouput).
100 - added JPEG image format support (input/output).
101
102 version 0.4.4:
103
104 - fixed some std header definitions (Bjorn Lindgren
105 <bjorn.e.lindgren@telia.com>).
106 - added mpeg demux (mpeg 1 and 2 compatible).
107 - added ASF demux.
108 - added prototype RM demux.
109 - added AC3 decoding (done with libac3 by Aaron Holtzman).
110 - added decoding codec parameter guessing (.e.g. for mpeg, because the
111 header does not include them).
112 - fixed header generation in mpeg1, AVI and ASF mux : wmplayer can now
113 play them (only tested video).
114 - fixed h263 white bug.
115 - fixed phase rounding in img resample filter.
116 - add mmx code for polyphase img resample filter.
117 - added CPU autodetect.
118 - added generic title/author/copyright/comment string handling (ASF and RM use them).
119 - added SWF demux to extract MP3 track (not usable yet because no MP3
120 decoder).
121 - added fractional frame rate support.
122 - codecs are no longer searched by read_header() (should fix ffserver
123 segfault).
124
125 version 0.4.3:
126
127 - BGR24 patch (initial patch by Jeroen Vreeken <pe1rxq@amsat.org>).
128 - fixed raw yuv output.
129 - added motion rounding support in MPEG4.
130 - fixed motion bug rounding in MSMPEG4.
131 - added B frame handling in video core.
132 - added full MPEG1 decoding support.
133 - added partial (frame only) MPEG2 support.
134 - changed the FOURCC code for H.263 to "U263" to be able to see the
135 +AVI/H.263 file with the UB Video H.263+ decoder. MPlayer works with
136 this +codec ;) (JuanJo).
137 - Halfpel motion estimation after mb type selection (JuanJo).
138 - added pgm and .Y.U.V output format.
139 - suppressed 'img:' protocol. Simply use: /tmp/test%d.[pgm|Y] as input or
140 output.
141 - added pgmpipe I/O format (original patch from Martin Aumueller
142 <lists@reserv.at>, but changed completely since we use a format
143 instead of a protocol).
144
145 version 0.4.2:
146
147 - added H263/MPEG4/MSMPEG4 decoding support. MPEG4 decoding support
148 (for openDIVX) is almost complete: 8x8 MVs and rounding are
149 missing. MSMPEG4 support is complete.
150 - added prototype MPEG1 decoder. Only I and P frames handled yet (it
151 can decode ffmpeg mpegs :-)).
152 - added libavcodec API documentation (see apiexample.c).
153 - fixed image polyphase bug (the bottom of some images could be
154 greenish).
155 - added support for non clipped motion vectors (decoding only)
156 and image sizes non multiple of 16.
157 - added support for AC prediction (decoding only).
158 - added file overwrite confirmation (can be disabled with -y).
159 - Added custom size picture to H.263 using H.263+ (Juanjo).
160
161 version 0.4.1:
162
163 - added MSMPEG4 (aka DIVX) compatible encoder. Changed default codec
164 of avi and asf to DIV3.
165 - added -me option to set motion estimation method
166 (default=log). suppressed redundant -hq option.
167 - added options -acodec and -vcodec to force a given codec (useful for
168 AVI for example).
169 - fixed -an option.
170 - improved dct_quantize speed.
171 - factorized some motion estimation code.
172
173 version 0.4.0:
174
175 - removing grab code from ffserver and moved it to ffmpeg. Added multi
176 stream support to ffmpeg.
177 - added timeshifting support for live feeds (option ?date=xxx in the
178 URL).
179 - added high quality image resize code with polyphase filter (need
180 mmx/see optimisation). Enable multiple image size support in ffserver.
181 - added multi live feed support in ffserver.
182 - suppressed master feature from ffserver (it should be done with an
183 external program which opens the .ffm url and writes it to another
184 ffserver).
185 - added preliminary support for video stream parsing (wav and avi half
186 done). Added proper support for audio/video file convertion in
187 ffmpeg.
188 - added preliminary support for video file sending from ffserver.
189 - redesigning I/O subsystem : now using URL based input and output
190 (see avio.h).
191 - added wav format support.
192 - added "tty user interface" to ffmpeg to stop grabbing gracefully.
193 - added MMX/SSE optimizations to SAD (Sums of Absolutes Diferences)
194 (Juan J. Sierralta P. a.k.a. "Juanjo" <juanjo@atmlab.utfsm.cl>).
195 - added MMX DCT from mpeg2_movie 1.5 (Juanjo).
196 - added new motion estimation algorithms, log and phods (Juanjo).
197 - changed directories : libav for format handling, libavcodec for
198 codecs.
199
200 version 0.3.4:
201
202 - added stereo in mpeg audio encoder.
203
204 version 0.3.3:
205
206 - added 'high quality' mode which use motion vectors. It can be used in
207 real time at low resolution.
208 - fixed rounding problems which caused quality problems at high
209 bitrates and large gop size.
210
211 version 0.3.2: small fixes
212
213 - asf fixes
214 - put_seek bug fix
215
216 version 0.3.1: added avi/divx support
217
218 - added avi support
219 - added mpeg4 codec compatible with open divx. It is based on the h263
220 codec.
221 - added sound for flash format (not tested)
222
223 version 0.3: initial public release