Snow: don't try to encode lossless with 9/7 wavelet, because it isn't lossless.
[libav.git] / Changelog
1 version <next>
2 - DV50 AKA DVCPRO50 encoder, decoder, muxer and demuxer
3 - TechSmith Camtasia (TSCC) video decoder
4 - IBM Ultimotion (ULTI) video decoder
5 - Sierra Online audio file demuxer and decoder
6 - Apple QuickDraw (qdrw) video decoder
7 - Creative ADPCM audio decoder (16 bits as well as 8 bits schemes)
8 - Electronic Arts Multimedia (WVE/UV2/etc.) file demuxer
9 - Miro VideoXL (VIXL) video decoder
10 - H.261 video encoder
11 - QPEG video decoder
12 - Nullsoft Video (NSV) file demuxer
13 - Shorten audio decoder
14 - LOCO video decoder
15 - Apple Lossless Audio Codec (ALAC) decoder
16 - Winnov WNV1 video decoder
17 - Autodesk Animator Studio Codec (AASC) decoder
18 - Indeo 2 video decoder
19 - Fraps FPS1 video decoder
20 - Snow video encoder/decoder
21 - Sonic audio encoder/decoder
22 - Vorbis audio decoder
23 - Macromedia ADPCM decoder
24 - Duck TrueMotion 2 video decoder
25 - support for decoding FLX and DTA extensions in FLIC files
26 - H.264 custom quantization matrices support
27 - ffserver fixed, it should now be usable again
28 - QDM2 audio decoder
29 - Real Cooker audio decoder
30 - TrueSpeech audio decoder
31 - WMA2 audio decoder fixed, now all files should play correctly
32 - RealAudio 14.4 and 28.8 decoders fixed
33 - JPEG-LS encoder and decoder
34 - CamStudio video decoder
35 - build system improvements
36 - tabs and trailing whitespace removed from the codebase
37 - AIFF/AIFF-C audio format, encoding and decoding
38 - ADTS AAC file reading and writing
39 - Creative VOC file reading and writing
40 - American Laser Games multimedia (*.mm) playback system
41 - Zip Blocks Motion Video decoder
42 - Improved Theora/VP3 decoder
43 - True Audio (TTA) decoder
44 - AVS demuxer and video decoder
45 - Smacker demuxer and decoder
46 - NuppelVideo/MythTV demuxer and RTjpeg decoder
47 - KMVC decoder
48 - MPEG-2 intra vlc support
49 - MPEG-2 4:2:2 encoder
50
51 version 0.4.9-pre1:
52
53 - DV encoder, DV muxer
54 - Microsoft RLE video decoder
55 - Microsoft Video-1 decoder
56 - Apple Animation (RLE) decoder
57 - Apple Graphics (SMC) decoder
58 - Apple Video (RPZA) decoder
59 - Cinepak decoder
60 - Sega FILM (CPK) file demuxer
61 - Westwood multimedia support (VQA & AUD files)
62 - Id Quake II CIN playback support
63 - 8BPS video decoder
64 - FLIC playback support
65 - RealVideo 2.0 (RV20) decoder
66 - Duck TrueMotion v1 (DUCK) video decoder
67 - Sierra VMD demuxer and video decoder
68 - MSZH and ZLIB decoder support
69 - SVQ1 video encoder
70 - AMR-WB support
71 - PPC optimizations
72 - rate distortion optimal cbp support
73 - rate distorted optimal ac prediction for MPEG-4
74 - rate distorted optimal lambda->qp support
75 - AAC encoding with libfaac
76 - Sunplus JPEG codec (SP5X) support
77 - use Lagrange multipler instead of QP for ratecontrol
78 - Theora/VP3 decoding support
79 - XA and ADX ADPCM codecs
80 - export MPEG-2 active display area / pan scan
81 - Add support for configuring with IBM XLC
82 - floating point AAN DCT
83 - initial support for zygo video (not complete)
84 - RGB ffv1 support
85 - new audio/video parser API
86 - av_log() system
87 - av_read_frame() and av_seek_frame() support
88 - missing last frame fixes
89 - seek by mouse in ffplay
90 - noise reduction of DCT coefficients
91 - H.263 OBMC & 4MV support
92 - H.263 alternative inter vlc support
93 - H.263 loop filter
94 - H.263 slice structured mode
95 - interlaced DCT support for MPEG-2 encoding
96 - stuffing to stay above min_bitrate
97 - MB type & QP visualization
98 - frame stepping for ffplay
99 - interlaced motion estimation
100 - alternate scantable support
101 - SVCD scan offset support
102 - closed GOP support
103 - SSE2 FDCT
104 - quantizer noise shaping
105 - G.726 ADPCM audio codec
106 - MS ADPCM encoding
107 - multithreaded/SMP motion estimation
108 - multithreaded/SMP encoding for MPEG-1/MPEG-2/MPEG-4/H.263
109 - multithreaded/SMP decoding for MPEG-2
110 - FLAC decoder
111 - Metrowerks CodeWarrior suppport
112 - H.263+ custom pcf support
113 - nicer output for 'ffmpeg -formats'
114 - Matroska demuxer
115 - SGI image format, encoding and decoding
116 - H.264 loop filter support
117 - H.264 CABAC support
118 - nicer looking arrows for the motion vector vissualization
119 - improved VCD support
120 - audio timestamp drift compensation
121 - MPEG-2 YUV 422/444 support
122 - polyphase kaiser windowed sinc and blackman nuttall windowed sinc audio resample
123 - better image scaling
124 - H.261 support
125 - correctly interleave packets during encoding
126 - VIS optimized motion compensation
127 - intra_dc_precision>0 encoding support
128 - support reuse of motion vectors/MB types/field select values of the source video
129 - more accurate deblock filter
130 - padding support
131 - many optimizations and bugfixes
132
133 version 0.4.8:
134
135 - MPEG-2 video encoding (Michael)
136 - Id RoQ playback subsystem (Mike Melanson and Tim Ferguson)
137 - Wing Commander III Movie (.mve) file playback subsystem (Mike Melanson
138 and Mario Brito)
139 - Xan DPCM audio decoder (Mario Brito)
140 - Interplay MVE playback subsystem (Mike Melanson)
141 - Duck DK3 and DK4 ADPCM audio decoders (Mike Melanson)
142
143 version 0.4.7:
144
145 - RealAudio 1.0 (14_4) and 2.0 (28_8) native decoders. Author unknown, code from mplayerhq
146 (originally from public domain player for Amiga at http://www.honeypot.net/audio)
147 - current version now also compiles with older GCC (Fabrice)
148 - 4X multimedia playback system including 4xm file demuxer (Mike
149 Melanson), and 4X video and audio codecs (Michael)
150 - Creative YUV (CYUV) decoder (Mike Melanson)
151 - FFV1 codec (our very simple lossless intra only codec, compresses much better
152 than HuffYUV) (Michael)
153 - ASV1 (Asus), H.264, Intel indeo3 codecs have been added (various)
154 - tiny PNG encoder and decoder, tiny GIF decoder, PAM decoder (PPM with
155 alpha support), JPEG YUV colorspace support. (Fabrice Bellard)
156 - ffplay has been replaced with a newer version which uses SDL (optionally)
157 for multiplatform support (Fabrice)
158 - Sorenson Version 3 codec (SVQ3) support has been added (decoding only) - donated
159 by anonymous
160 - AMR format has been added (Johannes Carlsson)
161 - 3GP support has been added (Johannes Carlsson)
162 - VP3 codec has been added (Mike Melanson)
163 - more MPEG-1/2 fixes
164 - better multiplatform support, MS Visual Studio fixes (various)
165 - AltiVec optimizations (Magnus Damn and others)
166 - SH4 processor support has been added (BERO)
167 - new public interfaces (avcodec_get_pix_fmt) (Roman Shaposhnick)
168 - VOB streaming support (Brian Foley)
169 - better MP3 autodetection (Andriy Rysin)
170 - qpel encoding (Michael)
171 - 4mv+b frames encoding finally fixed (Michael)
172 - chroma ME (Michael)
173 - 5 comparison functions for ME (Michael)
174 - B-frame encoding speedup (Michael)
175 - WMV2 codec (unfinished - Michael)
176 - user specified diamond size for EPZS (Michael)
177 - Playstation STR playback subsystem, still experimental (Mike and Michael)
178 - ASV2 codec (Michael)
179 - CLJR decoder (Alex)
180
181 .. And lots more new enhancements and fixes.
182
183 version 0.4.6:
184
185 - completely new integer only MPEG audio layer 1/2/3 decoder rewritten
186 from scratch
187 - Recoded DCT and motion vector search with gcc (no longer depends on nasm)
188 - fix quantization bug in AC3 encoder
189 - added PCM codecs and format. Corrected WAV/AVI/ASF PCM issues
190 - added prototype ffplay program
191 - added GOB header parsing on H.263/H.263+ decoder (Juanjo)
192 - bug fix on MCBPC tables of H.263 (Juanjo)
193 - bug fix on DC coefficients of H.263 (Juanjo)
194 - added Advanced Prediction Mode on H.263/H.263+ decoder (Juanjo)
195 - now we can decode H.263 streams found in QuickTime files (Juanjo)
196 - now we can decode H.263 streams found in VIVO v1 files(Juanjo)
197 - preliminary RTP "friendly" mode for H.263/H.263+ coding. (Juanjo)
198 - added GOB header for H.263/H.263+ coding on RTP mode (Juanjo)
199 - now H.263 picture size is returned on the first decoded frame (Juanjo)
200 - added first regression tests
201 - added MPEG-2 TS demuxer
202 - new demux API for libav
203 - more accurate and faster IDCT (Michael)
204 - faster and entropy-controlled motion search (Michael)
205 - two pass video encoding (Michael)
206 - new video rate control (Michael)
207 - added MSMPEG4V1, MSMPEGV2 and WMV1 support (Michael)
208 - great performance improvement of video encoders and decoders (Michael)
209 - new and faster bit readers and vlc parsers (Michael)
210 - high quality encoding mode: tries all macroblock/VLC types (Michael)
211 - added DV video decoder
212 - preliminary RTP/RTSP support in ffserver and libavformat
213 - H.263+ AIC decoding/encoding support (Juanjo)
214 - VCD MPEG-PS mode (Juanjo)
215 - PSNR stuff (Juanjo)
216 - simple stats output (Juanjo)
217 - 16-bit and 15-bit RGB/BGR/GBR support (Bisqwit)
218
219 version 0.4.5:
220
221 - some header fixes (Zdenek Kabelac <kabi@informatics.muni.cz>)
222 - many MMX optimizations (Nick Kurshev <nickols_k@mail.ru>)
223 - added configure system (actually a small shell script)
224 - added MPEG audio layer 1/2/3 decoding using LGPL'ed mpglib by
225 Michael Hipp (temporary solution - waiting for integer only
226 decoder)
227 - fixed VIDIOCSYNC interrupt
228 - added Intel H.263 decoding support ('I263' AVI fourCC)
229 - added Real Video 1.0 decoding (needs further testing)
230 - simplified image formats again. Added PGM format (=grey
231 pgm). Renamed old PGM to PGMYUV.
232 - fixed msmpeg4 slice issues (tell me if you still find problems)
233 - fixed OpenDivX bugs with newer versions (added VOL header decoding)
234 - added support for MPlayer interface
235 - added macroblock skip optimization
236 - added MJPEG decoder
237 - added mmx/mmxext IDCT from libmpeg2
238 - added pgmyuvpipe, ppm, and ppm_pipe formats (original patch by Celer
239 <celer@shell.scrypt.net>)
240 - added pixel format conversion layer (e.g. for MJPEG or PPM)
241 - added deinterlacing option
242 - MPEG-1/2 fixes
243 - MPEG-4 vol header fixes (Jonathan Marsden <snmjbm@pacbell.net>)
244 - ARM optimizations (Lionel Ulmer <lionel.ulmer@free.fr>).
245 - Windows porting of file converter
246 - added MJPEG raw format (input/ouput)
247 - added JPEG image format support (input/output)
248
249 version 0.4.4:
250
251 - fixed some std header definitions (Bjorn Lindgren
252 <bjorn.e.lindgren@telia.com>).
253 - added MPEG demuxer (MPEG-1 and 2 compatible).
254 - added ASF demuxer
255 - added prototype RM demuxer
256 - added AC3 decoding (done with libac3 by Aaron Holtzman)
257 - added decoding codec parameter guessing (.e.g. for MPEG, because the
258 header does not include them)
259 - fixed header generation in MPEG-1, AVI and ASF muxer: wmplayer can now
260 play them (only tested video)
261 - fixed H.263 white bug
262 - fixed phase rounding in img resample filter
263 - add MMX code for polyphase img resample filter
264 - added CPU autodetection
265 - added generic title/author/copyright/comment string handling (ASF and RM
266 use them)
267 - added SWF demux to extract MP3 track (not usable yet because no MP3
268 decoder)
269 - added fractional frame rate support
270 - codecs are no longer searched by read_header() (should fix ffserver
271 segfault)
272
273 version 0.4.3:
274
275 - BGR24 patch (initial patch by Jeroen Vreeken <pe1rxq@amsat.org>)
276 - fixed raw yuv output
277 - added motion rounding support in MPEG-4
278 - fixed motion bug rounding in MSMPEG4
279 - added B-frame handling in video core
280 - added full MPEG-1 decoding support
281 - added partial (frame only) MPEG-2 support
282 - changed the FOURCC code for H.263 to "U263" to be able to see the
283 +AVI/H.263 file with the UB Video H.263+ decoder. MPlayer works with
284 this +codec ;) (JuanJo).
285 - Halfpel motion estimation after MB type selection (JuanJo)
286 - added pgm and .Y.U.V output format
287 - suppressed 'img:' protocol. Simply use: /tmp/test%d.[pgm|Y] as input or
288 output.
289 - added pgmpipe I/O format (original patch from Martin Aumueller
290 <lists@reserv.at>, but changed completely since we use a format
291 instead of a protocol)
292
293 version 0.4.2:
294
295 - added H.263/MPEG-4/MSMPEG4 decoding support. MPEG-4 decoding support
296 (for OpenDivX) is almost complete: 8x8 MVs and rounding are
297 missing. MSMPEG4 support is complete.
298 - added prototype MPEG-1 decoder. Only I- and P-frames handled yet (it
299 can decode ffmpeg MPEGs :-)).
300 - added libavcodec API documentation (see apiexample.c).
301 - fixed image polyphase bug (the bottom of some images could be
302 greenish)
303 - added support for non clipped motion vectors (decoding only)
304 and image sizes non-multiple of 16
305 - added support for AC prediction (decoding only)
306 - added file overwrite confirmation (can be disabled with -y)
307 - added custom size picture to H.263 using H.263+ (Juanjo)
308
309 version 0.4.1:
310
311 - added MSMPEG4 (aka DivX) compatible encoder. Changed default codec
312 of AVI and ASF to DIV3.
313 - added -me option to set motion estimation method
314 (default=log). suppressed redundant -hq option.
315 - added options -acodec and -vcodec to force a given codec (useful for
316 AVI for example)
317 - fixed -an option
318 - improved dct_quantize speed
319 - factorized some motion estimation code
320
321 version 0.4.0:
322
323 - removing grab code from ffserver and moved it to ffmpeg. Added
324 multistream support to ffmpeg.
325 - added timeshifting support for live feeds (option ?date=xxx in the
326 URL)
327 - added high quality image resize code with polyphase filter (need
328 mmx/see optimisation). Enable multiple image size support in ffserver.
329 - added multi live feed support in ffserver
330 - suppressed master feature from ffserver (it should be done with an
331 external program which opens the .ffm url and writes it to another
332 ffserver)
333 - added preliminary support for video stream parsing (WAV and AVI half
334 done). Added proper support for audio/video file conversion in
335 ffmpeg.
336 - added preliminary support for video file sending from ffserver
337 - redesigning I/O subsystem: now using URL based input and output
338 (see avio.h)
339 - added WAV format support
340 - added "tty user interface" to ffmpeg to stop grabbing gracefully
341 - added MMX/SSE optimizations to SAD (Sums of Absolutes Differences)
342 (Juan J. Sierralta P. a.k.a. "Juanjo" <juanjo@atmlab.utfsm.cl>)
343 - added MMX DCT from mpeg2_movie 1.5 (Juanjo)
344 - added new motion estimation algorithms, log and phods (Juanjo)
345 - changed directories: libav for format handling, libavcodec for
346 codecs
347
348 version 0.3.4:
349
350 - added stereo in MPEG audio encoder
351
352 version 0.3.3:
353
354 - added 'high quality' mode which use motion vectors. It can be used in
355 real time at low resolution.
356 - fixed rounding problems which caused quality problems at high
357 bitrates and large GOP size
358
359 version 0.3.2: small fixes
360
361 - ASF fixes
362 - put_seek bug fix
363
364 version 0.3.1: added avi/divx support
365
366 - added AVI support
367 - added MPEG-4 codec compatible with OpenDivX. It is based on the H.263 codec
368 - added sound for flash format (not tested)
369
370 version 0.3: initial public release