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