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