3 - completely new mpeg audio layer 1/2/3 decoder rewritten from
5 - recoded dct and motion vector search with gcc (no longer depends on
7 - fix quantization bug in AC3 encoder.
8 - added GOB header parsing on H.263/H.263+ decoder. (Juanjo)
9 - bug fix on MCBPC tables of H.263. (Juanjo)
10 - bug fix on DC coefficients of H.263. (Juanjo)
11 - added Advanced Prediction Mode on H.263/H.263+ decoder. (Juanjo)
12 - now we can decode H.263 streams found on QuickTime files. (Juanjo)
13 - now we can decode H.263 streams found on VIVO v1 files.(Juanjo)
14 - preliminary RTP "friendly" mode for H.263/H.263+ coding. (Juanjo)
15 - added GOB header for H.263/H.263+ coding on RTP mode. (Juanjo)
16 - now H.263 picture size is returned on the first decoded frame. (Juanjo)
20 - some header fixes (Zdenek Kabelac <kabi@informatics.muni.cz>).
21 - many MMX optimizations (Nick Kurshev <nickols_k@mail.ru>).
22 - added configure system (actually a small shell script).
23 - added mpeg audio layer 1/2/3 decoding using LGPL'ed mpglib by
24 Michael Hipp (temporary solution - waiting for integer only
26 - fixed VIDIOCSYNC interrupt.
27 - added Intel H263 decoding support ('I263' avi fourCC)
28 - added Real Video 1.0 decoding (needs further testing).
29 - simplified image formats again. Added PGM format (=grey
30 pgm). Renamed old PGM to PGMYUV.
31 - fixed msmpeg4 slice issues (tell me if you still find problems).
32 - fixed opendivx bugs with newer versions (added VOL header decoding).
33 - added support for mplayer interface.
34 - added macroblock skip optimization.
35 - added MJPEG decoder.
36 - added mmx/mmxext idct from libmpeg2.
37 - added pgmyuvpipe, ppm, and ppm_pipe formats (original patch by Celer
38 <celer@shell.scrypt.net>).
39 - added pixel format convertion layer (e.g. for MJPEG or PPM).
40 - added deinterlacing option.
42 - mpeg4 vol header fixes (Jonathan Marsden <snmjbm@pacbell.net>).
43 - ARM optimizations (Lionel Ulmer <lionel.ulmer@free.fr>).
44 - Windows porting of file converter.
45 - added MJPEG raw format (input/ouput).
46 - added JPEG image format support (input/output).
50 - fixed some std header definitions (Bjorn Lindgren
51 <bjorn.e.lindgren@telia.com>).
52 - added mpeg demux (mpeg 1 and 2 compatible).
54 - added prototype RM demux.
55 - added AC3 decoding (done with libac3 by Aaron Holtzman).
56 - added decoding codec parameter guessing (.e.g. for mpeg, because the
57 header does not include them).
58 - fixed header generation in mpeg1, AVI and ASF mux : wmplayer can now
59 play them (only tested video).
60 - fixed h263 white bug.
61 - fixed phase rounding in img resample filter.
62 - add mmx code for polyphase img resample filter.
63 - added CPU autodetect.
64 - added generic title/author/copyright/comment string handling (ASF and RM use them).
65 - added SWF demux to extract MP3 track (not usable yet because no MP3
67 - added fractional frame rate support.
68 - codecs are no longer searched by read_header() (should fix ffserver
73 - BGR24 patch (initial patch by Jeroen Vreeken <pe1rxq@amsat.org>).
74 - fixed raw yuv output.
75 - added motion rounding support in MPEG4.
76 - fixed motion bug rounding in MSMPEG4.
77 - added B frame handling in video core.
78 - added full MPEG1 decoding support.
79 - added partial (frame only) MPEG2 support.
80 - changed the FOURCC code for H.263 to "U263" to be able to see the
81 +AVI/H.263 file with the UB Video H.263+ decoder. MPlayer works with
82 this +codec ;) (JuanJo).
83 - Halfpel motion estimation after mb type selection (JuanJo).
84 - added pgm and .Y.U.V output format.
85 - suppressed 'img:' protocol. Simply use: /tmp/test%d.[pgm|Y] as input or
87 - added pgmpipe I/O format (original patch from Martin Aumueller
88 <lists@reserv.at>, but changed completely since we use a format
89 instead of a protocol).
93 - added H263/MPEG4/MSMPEG4 decoding support. MPEG4 decoding support
94 (for openDIVX) is almost complete: 8x8 MVs and rounding are
95 missing. MSMPEG4 support is complete.
96 - added prototype MPEG1 decoder. Only I and P frames handled yet (it
97 can decode ffmpeg mpegs :-)).
98 - added libavcodec API documentation (see apiexample.c).
99 - fixed image polyphase bug (the bottom of some images could be
101 - added support for non clipped motion vectors (decoding only)
102 and image sizes non multiple of 16.
103 - added support for AC prediction (decoding only).
104 - added file overwrite confirmation (can be disabled with -y).
105 - Added custom size picture to H.263 using H.263+ (Juanjo).
109 - added MSMPEG4 (aka DIVX) compatible encoder. Changed default codec
110 of avi and asf to DIV3.
111 - added -me option to set motion estimation method
112 (default=log). suppressed redundant -hq option.
113 - added options -acodec and -vcodec to force a given codec (useful for
116 - improved dct_quantize speed.
117 - factorized some motion estimation code.
121 - removing grab code from ffserver and moved it to ffmpeg. Added multi
122 stream support to ffmpeg.
123 - added timeshifting support for live feeds (option ?date=xxx in the
125 - added high quality image resize code with polyphase filter (need
126 mmx/see optimisation). Enable multiple image size support in ffserver.
127 - added multi live feed support in ffserver.
128 - suppressed master feature from ffserver (it should be done with an
129 external program which opens the .ffm url and writes it to another
131 - added preliminary support for video stream parsing (wav and avi half
132 done). Added proper support for audio/video file convertion in
134 - added preliminary support for video file sending from ffserver.
135 - redesigning I/O subsystem : now using URL based input and output
137 - added wav format support.
138 - added "tty user interface" to ffmpeg to stop grabbing gracefully.
139 - added MMX/SSE optimizations to SAD (Sums of Absolutes Diferences)
140 (Juan J. Sierralta P. a.k.a. "Juanjo" <juanjo@atmlab.utfsm.cl>).
141 - added MMX DCT from mpeg2_movie 1.5 (Juanjo).
142 - added new motion estimation algorithms, log and phods (Juanjo).
143 - changed directories : libav for format handling, libavcodec for
148 - added stereo in mpeg audio encoder.
152 - added 'high quality' mode which use motion vectors. It can be used in
153 real time at low resolution.
154 - fixed rounding problems which caused quality problems at high
155 bitrates and large gop size.
157 version 0.3.2: small fixes
162 version 0.3.1: added avi/divx support
165 - added mpeg4 codec compatible with open divx. It is based on the h263
167 - added sound for flash format (not tested)
169 version 0.3: initial public release