some optimizations gcc should have done (10% faster loop filter)
[libav.git] / Changelog
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1version <next>
2- TechSmith Camtasia (TSCC) video decoder
d0a0bbd2 3- IBM Ultimotion (ULTI) video decoder
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4- Sierra Online audio file demuxer and decoder
5- Apple QuickDraw (qdrw) video decoder
b3bfb299 6- Creative ADPCM audio decoder
ad81a9fe 7- Electronic Arts Multimedia (WVE/UV2/etc.) file demuxer
ab711b3c 8- Miro VideoXL (VIXL) video decoder
b06b45c4 9- H.261 video encoder
acfd8f0f 10- QPEG video decoder
353147ed 11- Nullsoft Video (NSV) file demuxer
13dfd2b9 12- Shorten audio decoder
9c7fb608 13- LOCO video decoder
f770ee03 14- Apple Lossless Audio Codec (ALAC) decoder
a8a15e9d 15- Winnov WNV1 video decoder
589f8220 16- Autodesk Animator Studio Codec (AASC) decoder
bfaad39f 17- Indeo 2 video decoder
9d53d58e 18
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19version 0.4.9-pre1:
20
4fa1c4fa 21- DV encoder, DV muxer
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22- Microsoft RLE video decoder
23- Microsoft Video-1 decoder
070ed1bc 24- Apple Animation (RLE) decoder
42cad81a 25- Apple Graphics (SMC) decoder
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26- Apple Video (RPZA) decoder
27- Cinepak decoder
28- Sega FILM (CPK) file demuxer
42cad81a 29- Westwood multimedia support (VQA & AUD files)
4120a53a 30- Id Quake II CIN playback support
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31- 8BPS video decoder
32- FLIC playback support
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33- RealVideo 2.0 (RV20) decoder
34- Duck TrueMotion v1 (DUCK) video decoder
da00f30e 35- Sierra VMD demuxer and video decoder
1defd2a8 36- MSZH and ZLIB decoder support
3b64893d 37- SVQ1 video encoder
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38- AMR-WB support
39- PPC optimisations
40- rate distortion optimal cbp support
41- rate distorted optimal ac prediction for mpeg4
42- rate distorted optimal lambda->qp support
43- AAC encoding with libfaac
44- Sunplus JPEG codec (SP5X) support
45- use lagrange multipler instead of qp for ratecontrol
46- theora/VP3 decoding support
47- XA and ADX ADPCM codecs
48- export mpeg2 active display area / pan scan
49- Add support for configuring with IBM XLC
50- floating point AAN DCT
51- initial support for zygovideo (not complete)
52- rgb ffv1 support
53- new audio/video parser API
54- av_log() system
55- av_read_frame() and av_seek_frame() support
56- missing last frame fixes
57- seek by mouse in ffplay
58- noise reduction of dct coefficients
59- h263 OBMC & 4MV support
60- h263 alternative inter vlc support
61- h263 loop filter
62- h263 slice structured mode
63- interlaced DCT support for MPEG2 encoding
64- stuffing to stay above min_bitrate
65- mb type & qp vissualization
66- frame stepping for ffplay
67- interlaced motion estimation
68- alternate scantable support
69- SVCD scan offset support
70- closed gop support
71- SSE2 fdct
72- quantizer noise shaping
73- G.726 ADPCM audio codec
74- MS ADPCM encoding
75- multithreaded/SMP motion estimation
76- multithreaded/SMP encoding for MPEG1/MPEG2/MPEG4/H263
77- multithreaded/SMP decoding for MPEG2
78- FLAC decoder
79- Metrowerks CodeWarrior suppport
80- h263+ custom pcf support
81- nicer output for 'ffmpeg -formats'
82- matroska demuxer
83- SGI image format, encoding and decoding
84- h264 loop filter support
85- h264 CABAC support
86- nicer looking arrows for the motion vector vissualization
87- improved VCD support
88- audio timestamp drift compensation
89- mpeg2 YUV 422/444 support
90- polyphase kaiser windowed sinc and blackman nuttall windowed sinc audio resample
91- better image scaling
92- h261 support
93- correctly interleave packets during encoding
94- VIS optimized motion compensation
95- intra_dc_precission>0 encoding support
96- support reuse of motion vectors/mb types/field select values of the source video
97- more accurate deblock filter
98- padding support
99- many optimizations and bugfixes
2fdf638b 100
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101version 0.4.8:
102
103- MPEG2 video encoding (Michael)
d9d8910b 104- Id RoQ playback subsystem (Mike Melanson and Tim Ferguson)
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105- Wing Commander III Movie (.mve) file playback subsystem (Mike Melanson
106 and Mario Brito)
107- Xan DPCM audio decoder (Mario Brito)
186447f8 108- Interplay MVE playback subsystem (Mike Melanson)
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109- Duck DK3 and DK4 ADPCM audio decoders (Mike Melanson)
110
111version 0.4.7:
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113- RealAudio 1.0 (14_4) and 2.0 (28_8) native decoders. Author unknown, code from a mplayerhq
114 (originally from public domain player for Amiga at http://www.honeypot.net/audio)
82853318 115- Current version now also compiles with older GCC (Fabrice)
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116- 4X multimedia playback system including 4xm file demuxer (Mike
117 Melanson), and 4X video and audio codecs (Michael)
118- Creative YUV (CYUV) decoder (Mike Melanson)
119- FFV1 codec (our very simple lossless intra only codec, compresses much better
120 then huffyuv) (Michael)
121- ASV1 (Asus), H.264, Intel indeo3 codecs has been added (Various)
122- Tiny PNG encoder and decoder, tiny GIF decoder, PAM decoder (PPM with
123 alpha support), JPEG YUV colorspace support. (Fabrice Bellard)
124- ffplay has been replaced with a newer version which uses SDL (optionally)
125 for multi platform support (fabrice)
126- Sorenson Version 3 codec (SVQ3) support has been added (decoding only) - donated
127 by anonymous
128- AMR format has been added (Johannes Carlsson)
82853318 129- 3gp support has been added (Johannes Carlsson)
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130- VP3 codec has been added (Mike Melanson)
131- more MPEG-1/2 fixes
132- Better Multi platform support, MS Visual Studio fixes (various)
133- Altivec optimizations (Magnus Damn and others)
134- SH4 processor support has been added (BERO)
135- New public interfaces (avcodec_get_pix_fmt) (Roman Shaposhnick)
136- VOB Streaming support (Brian Foley)
137- Better MP3 Autodetection (Andriy Rysin)
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138- qpel encoding (Michael)
139- 4mv+b frames encoding finally fixed (Michael)
140- chroma ME (Michael)
141- 5 comparission functions for ME (Michael)
142- b frame encoding speedup (Michael)
e07702ba 143- wmv2 codec (unfinished - Michael)
d3d10087 144- user specified diamond size for EPZS (Michael)
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145- Playstation STR playback subsystem, still experimental (Mike and Michael)
146- ASV2 codec (Michael)
147- CLJR decoder (Alex)
d3d10087 148
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149.. And lots more new enhances and fixes.
150
d3d10087 151version 0.4.6:
739d6efa 152
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153- completely new integer only mpeg audio layer 1/2/3 decoder rewritten
154 from scratch.
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155- recoded dct and motion vector search with gcc (no longer depends on
156 nasm).
157- fix quantization bug in AC3 encoder.
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158- added PCM codecs and format. Corrected wav/avi/asf pcm issues.
159- added prototype ffplay program.
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160- added GOB header parsing on H.263/H.263+ decoder. (Juanjo)
161- bug fix on MCBPC tables of H.263. (Juanjo)
81401c1f 162- bug fix on DC coefficients of H.263. (Juanjo)
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163- added Advanced Prediction Mode on H.263/H.263+ decoder. (Juanjo)
164- now we can decode H.263 streams found on QuickTime files. (Juanjo)
165- now we can decode H.263 streams found on VIVO v1 files.(Juanjo)
166- preliminary RTP "friendly" mode for H.263/H.263+ coding. (Juanjo)
167- added GOB header for H.263/H.263+ coding on RTP mode. (Juanjo)
168- now H.263 picture size is returned on the first decoded frame. (Juanjo)
7f913a35 169- added first regression tests
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170- added MPEG2 TS demux
171- new demux API for libav
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172- more accurate and faster IDCT (Michael)
173- faster and entropy controlled motion search (Michael)
174- two pass video encoding (Michael)
175- new video rate control (Michael)
176- added MSMPEG4V1, MSMPEGV2 and WMV1 support (Michael)
177- great performance improvement of video encoders and decoders (Michael)
178- new and faster bit readers and vlc parsers (Michael)
179- high quality encoding mode : tries all macroblock/VLC types (Michael)
180- added DV video decoder
181- preliminary RTP/RTSP support in ffserver and libavformat
b963ee3b 182- H.263+ AIC decoding/encoding support. (Juanjo)
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183- VCD MPEG-PS mode. (Juanjo)
184- PSNR stuff. (Juanjo)
185- Simple stats output. (Juanjo)
a32072d0 186- 16-bit and 15-bit rgb/bgr/gbr support (Bisqwit)
739d6efa 187
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188version 0.4.5:
189
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190- some header fixes (Zdenek Kabelac &lt;kabi@informatics.muni.cz&gt;).
191- many MMX optimizations (Nick Kurshev &lt;nickols_k@mail.ru&gt;).
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192- added configure system (actually a small shell script).
193- added mpeg audio layer 1/2/3 decoding using LGPL'ed mpglib by
194 Michael Hipp (temporary solution - waiting for integer only
195 decoder).
196- fixed VIDIOCSYNC interrupt.
197- added Intel H263 decoding support ('I263' avi fourCC)
198- added Real Video 1.0 decoding (needs further testing).
199- simplified image formats again. Added PGM format (=grey
200 pgm). Renamed old PGM to PGMYUV.
201- fixed msmpeg4 slice issues (tell me if you still find problems).
202- fixed opendivx bugs with newer versions (added VOL header decoding).
203- added support for mplayer interface.
16fbebe1 204- added macroblock skip optimization.
0c1e384c 205- added MJPEG decoder.
16fbebe1 206- added mmx/mmxext idct from libmpeg2.
0c1e384c 207- added pgmyuvpipe, ppm, and ppm_pipe formats (original patch by Celer
e07702ba 208 &lt;celer@shell.scrypt.net&gt;).
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209- added pixel format convertion layer (e.g. for MJPEG or PPM).
210- added deinterlacing option.
4a8c7a7f 211- mpeg1/2 fixes.
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212- mpeg4 vol header fixes (Jonathan Marsden &lt;snmjbm@pacbell.net&gt;).
213- ARM optimizations (Lionel Ulmer &lt;lionel.ulmer@free.fr&gt;).
4a8c7a7f 214- Windows porting of file converter.
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215- added MJPEG raw format (input/ouput).
216- added JPEG image format support (input/output).
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217
218version 0.4.4:
219
220- fixed some std header definitions (Bjorn Lindgren
e07702ba 221 &lt;bjorn.e.lindgren@telia.com&gt;).
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222- added mpeg demux (mpeg 1 and 2 compatible).
223- added ASF demux.
224- added prototype RM demux.
225- added AC3 decoding (done with libac3 by Aaron Holtzman).
226- added decoding codec parameter guessing (.e.g. for mpeg, because the
227 header does not include them).
228- fixed header generation in mpeg1, AVI and ASF mux : wmplayer can now
229 play them (only tested video).
230- fixed h263 white bug.
231- fixed phase rounding in img resample filter.
232- add mmx code for polyphase img resample filter.
233- added CPU autodetect.
234- added generic title/author/copyright/comment string handling (ASF and RM use them).
235- added SWF demux to extract MP3 track (not usable yet because no MP3
236 decoder).
237- added fractional frame rate support.
238- codecs are no longer searched by read_header() (should fix ffserver
239 segfault).
240
241version 0.4.3:
242
e07702ba 243- BGR24 patch (initial patch by Jeroen Vreeken &lt;pe1rxq@amsat.org&gt;).
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244- fixed raw yuv output.
245- added motion rounding support in MPEG4.
246- fixed motion bug rounding in MSMPEG4.
247- added B frame handling in video core.
248- added full MPEG1 decoding support.
249- added partial (frame only) MPEG2 support.
250- changed the FOURCC code for H.263 to "U263" to be able to see the
251+AVI/H.263 file with the UB Video H.263+ decoder. MPlayer works with
252this +codec ;) (JuanJo).
253- Halfpel motion estimation after mb type selection (JuanJo).
254- added pgm and .Y.U.V output format.
255- suppressed 'img:' protocol. Simply use: /tmp/test%d.[pgm|Y] as input or
256 output.
257- added pgmpipe I/O format (original patch from Martin Aumueller
e07702ba 258 &lt;lists@reserv.at&gt;, but changed completely since we use a format
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259 instead of a protocol).
260
261version 0.4.2:
262
263- added H263/MPEG4/MSMPEG4 decoding support. MPEG4 decoding support
264 (for openDIVX) is almost complete: 8x8 MVs and rounding are
265 missing. MSMPEG4 support is complete.
266- added prototype MPEG1 decoder. Only I and P frames handled yet (it
267 can decode ffmpeg mpegs :-)).
268- added libavcodec API documentation (see apiexample.c).
269- fixed image polyphase bug (the bottom of some images could be
270 greenish).
271- added support for non clipped motion vectors (decoding only)
272 and image sizes non multiple of 16.
273- added support for AC prediction (decoding only).
274- added file overwrite confirmation (can be disabled with -y).
275- Added custom size picture to H.263 using H.263+ (Juanjo).
276
277version 0.4.1:
278
279- added MSMPEG4 (aka DIVX) compatible encoder. Changed default codec
280 of avi and asf to DIV3.
281- added -me option to set motion estimation method
282 (default=log). suppressed redundant -hq option.
283- added options -acodec and -vcodec to force a given codec (useful for
284 AVI for example).
285- fixed -an option.
286- improved dct_quantize speed.
287- factorized some motion estimation code.
288
289version 0.4.0:
290
291- removing grab code from ffserver and moved it to ffmpeg. Added multi
292 stream support to ffmpeg.
293- added timeshifting support for live feeds (option ?date=xxx in the
294 URL).
295- added high quality image resize code with polyphase filter (need
296 mmx/see optimisation). Enable multiple image size support in ffserver.
297- added multi live feed support in ffserver.
298- suppressed master feature from ffserver (it should be done with an
299 external program which opens the .ffm url and writes it to another
300 ffserver).
301- added preliminary support for video stream parsing (wav and avi half
302 done). Added proper support for audio/video file convertion in
303 ffmpeg.
304- added preliminary support for video file sending from ffserver.
305- redesigning I/O subsystem : now using URL based input and output
306 (see avio.h).
307- added wav format support.
308- added "tty user interface" to ffmpeg to stop grabbing gracefully.
309- added MMX/SSE optimizations to SAD (Sums of Absolutes Diferences)
e07702ba 310 (Juan J. Sierralta P. a.k.a. "Juanjo" &lt;juanjo@atmlab.utfsm.cl&gt;).
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311- added MMX DCT from mpeg2_movie 1.5 (Juanjo).
312- added new motion estimation algorithms, log and phods (Juanjo).
313- changed directories : libav for format handling, libavcodec for
314 codecs.
315
316version 0.3.4:
317
318- added stereo in mpeg audio encoder.
319
320version 0.3.3:
321
322- added 'high quality' mode which use motion vectors. It can be used in
323 real time at low resolution.
324- fixed rounding problems which caused quality problems at high
325 bitrates and large gop size.
326
327version 0.3.2: small fixes
328
329- asf fixes
330- put_seek bug fix
331
332version 0.3.1: added avi/divx support
333
334- added avi support
335- added mpeg4 codec compatible with open divx. It is based on the h263
336 codec.
337- added sound for flash format (not tested)
338
339version 0.3: initial public release