second try of improved lambda/qp guessing for motion estimation RD in first pass
[libav.git] / Changelog
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1version <next>
2- TechSmith Camtasia (TSCC) video decoder
3- IBM Ultimotion (ULTI) video decoder
4- Sierra Online audio file demuxer and decoder
5- Apple QuickDraw (qdrw) video decoder
6- Creative ADPCM audio decoder
7- Electronic Arts Multimedia (WVE/UV2/etc.) file demuxer
8- Miro VideoXL (VIXL) video decoder
9- H.261 video encoder
10- QPEG video decoder
11- Nullsoft Video (NSV) file demuxer
12- Shorten audio decoder
13- LOCO video decoder
14- Apple Lossless Audio Codec (ALAC) decoder
15- Winnov WNV1 video decoder
16- Autodesk Animator Studio Codec (AASC) decoder
17- Indeo 2 video decoder
18- Fraps FPS1 video decoder
19- SNOW video encoder/decoder
20- Sonic audio encoder/decoder
21- Vorbis decoder
22- Macromedia ADPCM decoder
23- Duck TrueMotion 2 decoder
24- Support for decoding FLX and DTA extensions in FLIC files
25- H.264 custom quantization matrices support
26- ffserver fixed, it should now be usable again
27- QDM2 audio decoder
28- cook decoder
29- wma2 fixed, now all files should be decodeable
30
31version 0.4.9-pre1:
32
33- DV encoder, DV muxer
34- Microsoft RLE video decoder
35- Microsoft Video-1 decoder
36- Apple Animation (RLE) decoder
37- Apple Graphics (SMC) decoder
38- Apple Video (RPZA) decoder
39- Cinepak decoder
40- Sega FILM (CPK) file demuxer
41- Westwood multimedia support (VQA & AUD files)
42- Id Quake II CIN playback support
43- 8BPS video decoder
44- FLIC playback support
45- RealVideo 2.0 (RV20) decoder
46- Duck TrueMotion v1 (DUCK) video decoder
47- Sierra VMD demuxer and video decoder
48- MSZH and ZLIB decoder support
49- SVQ1 video encoder
50- AMR-WB support
51- PPC optimisations
52- rate distortion optimal cbp support
53- rate distorted optimal ac prediction for mpeg4
54- rate distorted optimal lambda->qp support
55- AAC encoding with libfaac
56- Sunplus JPEG codec (SP5X) support
57- use lagrange multipler instead of qp for ratecontrol
58- theora/VP3 decoding support
59- XA and ADX ADPCM codecs
60- export mpeg2 active display area / pan scan
61- Add support for configuring with IBM XLC
62- floating point AAN DCT
63- initial support for zygovideo (not complete)
64- rgb ffv1 support
65- new audio/video parser API
66- av_log() system
67- av_read_frame() and av_seek_frame() support
68- missing last frame fixes
69- seek by mouse in ffplay
70- noise reduction of dct coefficients
71- h263 OBMC & 4MV support
72- h263 alternative inter vlc support
73- h263 loop filter
74- h263 slice structured mode
75- interlaced DCT support for MPEG2 encoding
76- stuffing to stay above min_bitrate
77- mb type & qp vissualization
78- frame stepping for ffplay
79- interlaced motion estimation
80- alternate scantable support
81- SVCD scan offset support
82- closed gop support
83- SSE2 fdct
84- quantizer noise shaping
85- G.726 ADPCM audio codec
86- MS ADPCM encoding
87- multithreaded/SMP motion estimation
88- multithreaded/SMP encoding for MPEG1/MPEG2/MPEG4/H263
89- multithreaded/SMP decoding for MPEG2
90- FLAC decoder
91- Metrowerks CodeWarrior suppport
92- h263+ custom pcf support
93- nicer output for 'ffmpeg -formats'
94- matroska demuxer
95- SGI image format, encoding and decoding
96- h264 loop filter support
97- h264 CABAC support
98- nicer looking arrows for the motion vector vissualization
99- improved VCD support
100- audio timestamp drift compensation
101- mpeg2 YUV 422/444 support
102- polyphase kaiser windowed sinc and blackman nuttall windowed sinc audio resample
103- better image scaling
104- h261 support
105- correctly interleave packets during encoding
106- VIS optimized motion compensation
107- intra_dc_precission>0 encoding support
108- support reuse of motion vectors/mb types/field select values of the source video
109- more accurate deblock filter
110- padding support
111- many optimizations and bugfixes
112
113version 0.4.8:
114
115- MPEG2 video encoding (Michael)
116- Id RoQ playback subsystem (Mike Melanson and Tim Ferguson)
117- Wing Commander III Movie (.mve) file playback subsystem (Mike Melanson
118 and Mario Brito)
119- Xan DPCM audio decoder (Mario Brito)
120- Interplay MVE playback subsystem (Mike Melanson)
121- Duck DK3 and DK4 ADPCM audio decoders (Mike Melanson)
122
123version 0.4.7:
124
125- RealAudio 1.0 (14_4) and 2.0 (28_8) native decoders. Author unknown, code from a mplayerhq
126 (originally from public domain player for Amiga at http://www.honeypot.net/audio)
127- Current version now also compiles with older GCC (Fabrice)
128- 4X multimedia playback system including 4xm file demuxer (Mike
129 Melanson), and 4X video and audio codecs (Michael)
130- Creative YUV (CYUV) decoder (Mike Melanson)
131- FFV1 codec (our very simple lossless intra only codec, compresses much better
132 then huffyuv) (Michael)
133- ASV1 (Asus), H.264, Intel indeo3 codecs has been added (Various)
134- Tiny PNG encoder and decoder, tiny GIF decoder, PAM decoder (PPM with
135 alpha support), JPEG YUV colorspace support. (Fabrice Bellard)
136- ffplay has been replaced with a newer version which uses SDL (optionally)
137 for multi platform support (fabrice)
138- Sorenson Version 3 codec (SVQ3) support has been added (decoding only) - donated
139 by anonymous
140- AMR format has been added (Johannes Carlsson)
141- 3gp support has been added (Johannes Carlsson)
142- VP3 codec has been added (Mike Melanson)
143- more MPEG-1/2 fixes
144- Better Multi platform support, MS Visual Studio fixes (various)
145- Altivec optimizations (Magnus Damn and others)
146- SH4 processor support has been added (BERO)
147- New public interfaces (avcodec_get_pix_fmt) (Roman Shaposhnick)
148- VOB Streaming support (Brian Foley)
149- Better MP3 Autodetection (Andriy Rysin)
150- qpel encoding (Michael)
151- 4mv+b frames encoding finally fixed (Michael)
152- chroma ME (Michael)
153- 5 comparission functions for ME (Michael)
154- b frame encoding speedup (Michael)
155- wmv2 codec (unfinished - Michael)
156- user specified diamond size for EPZS (Michael)
157- Playstation STR playback subsystem, still experimental (Mike and Michael)
158- ASV2 codec (Michael)
159- CLJR decoder (Alex)
160
161.. And lots more new enhances and fixes.
162
163version 0.4.6:
164
165- completely new integer only mpeg audio layer 1/2/3 decoder rewritten
166 from scratch.
167- recoded dct and motion vector search with gcc (no longer depends on
168 nasm).
169- fix quantization bug in AC3 encoder.
170- added PCM codecs and format. Corrected wav/avi/asf pcm issues.
171- added prototype ffplay program.
172- added GOB header parsing on H.263/H.263+ decoder. (Juanjo)
173- bug fix on MCBPC tables of H.263. (Juanjo)
174- bug fix on DC coefficients of H.263. (Juanjo)
175- added Advanced Prediction Mode on H.263/H.263+ decoder. (Juanjo)
176- now we can decode H.263 streams found on QuickTime files. (Juanjo)
177- now we can decode H.263 streams found on VIVO v1 files.(Juanjo)
178- preliminary RTP "friendly" mode for H.263/H.263+ coding. (Juanjo)
179- added GOB header for H.263/H.263+ coding on RTP mode. (Juanjo)
180- now H.263 picture size is returned on the first decoded frame. (Juanjo)
181- added first regression tests
182- added MPEG2 TS demux
183- new demux API for libav
184- more accurate and faster IDCT (Michael)
185- faster and entropy controlled motion search (Michael)
186- two pass video encoding (Michael)
187- new video rate control (Michael)
188- added MSMPEG4V1, MSMPEGV2 and WMV1 support (Michael)
189- great performance improvement of video encoders and decoders (Michael)
190- new and faster bit readers and vlc parsers (Michael)
191- high quality encoding mode : tries all macroblock/VLC types (Michael)
192- added DV video decoder
193- preliminary RTP/RTSP support in ffserver and libavformat
194- H.263+ AIC decoding/encoding support. (Juanjo)
195- VCD MPEG-PS mode. (Juanjo)
196- PSNR stuff. (Juanjo)
197- Simple stats output. (Juanjo)
198- 16-bit and 15-bit rgb/bgr/gbr support (Bisqwit)
199
200version 0.4.5:
201
202- some header fixes (Zdenek Kabelac &lt;kabi@informatics.muni.cz&gt;).
203- many MMX optimizations (Nick Kurshev &lt;nickols_k@mail.ru&gt;).
204- added configure system (actually a small shell script).
205- added mpeg audio layer 1/2/3 decoding using LGPL'ed mpglib by
206 Michael Hipp (temporary solution - waiting for integer only
207 decoder).
208- fixed VIDIOCSYNC interrupt.
209- added Intel H263 decoding support ('I263' avi fourCC)
210- added Real Video 1.0 decoding (needs further testing).
211- simplified image formats again. Added PGM format (=grey
212 pgm). Renamed old PGM to PGMYUV.
213- fixed msmpeg4 slice issues (tell me if you still find problems).
214- fixed opendivx bugs with newer versions (added VOL header decoding).
215- added support for mplayer interface.
216- added macroblock skip optimization.
217- added MJPEG decoder.
218- added mmx/mmxext idct from libmpeg2.
219- added pgmyuvpipe, ppm, and ppm_pipe formats (original patch by Celer
220 &lt;celer@shell.scrypt.net&gt;).
221- added pixel format convertion layer (e.g. for MJPEG or PPM).
222- added deinterlacing option.
223- mpeg1/2 fixes.
224- mpeg4 vol header fixes (Jonathan Marsden &lt;snmjbm@pacbell.net&gt;).
225- ARM optimizations (Lionel Ulmer &lt;lionel.ulmer@free.fr&gt;).
226- Windows porting of file converter.
227- added MJPEG raw format (input/ouput).
228- added JPEG image format support (input/output).
229
230version 0.4.4:
231
232- fixed some std header definitions (Bjorn Lindgren
233 &lt;bjorn.e.lindgren@telia.com&gt;).
234- added mpeg demux (mpeg 1 and 2 compatible).
235- added ASF demux.
236- added prototype RM demux.
237- added AC3 decoding (done with libac3 by Aaron Holtzman).
238- added decoding codec parameter guessing (.e.g. for mpeg, because the
239 header does not include them).
240- fixed header generation in mpeg1, AVI and ASF mux : wmplayer can now
241 play them (only tested video).
242- fixed h263 white bug.
243- fixed phase rounding in img resample filter.
244- add mmx code for polyphase img resample filter.
245- added CPU autodetect.
246- added generic title/author/copyright/comment string handling (ASF and RM use them).
247- added SWF demux to extract MP3 track (not usable yet because no MP3
248 decoder).
249- added fractional frame rate support.
250- codecs are no longer searched by read_header() (should fix ffserver
251 segfault).
252
253version 0.4.3:
254
255- BGR24 patch (initial patch by Jeroen Vreeken &lt;pe1rxq@amsat.org&gt;).
256- fixed raw yuv output.
257- added motion rounding support in MPEG4.
258- fixed motion bug rounding in MSMPEG4.
259- added B frame handling in video core.
260- added full MPEG1 decoding support.
261- added partial (frame only) MPEG2 support.
262- changed the FOURCC code for H.263 to "U263" to be able to see the
263+AVI/H.263 file with the UB Video H.263+ decoder. MPlayer works with
264this +codec ;) (JuanJo).
265- Halfpel motion estimation after mb type selection (JuanJo).
266- added pgm and .Y.U.V output format.
267- suppressed 'img:' protocol. Simply use: /tmp/test%d.[pgm|Y] as input or
268 output.
269- added pgmpipe I/O format (original patch from Martin Aumueller
270 &lt;lists@reserv.at&gt;, but changed completely since we use a format
271 instead of a protocol).
272
273version 0.4.2:
274
275- added H263/MPEG4/MSMPEG4 decoding support. MPEG4 decoding support
276 (for openDIVX) is almost complete: 8x8 MVs and rounding are
277 missing. MSMPEG4 support is complete.
278- added prototype MPEG1 decoder. Only I and P frames handled yet (it
279 can decode ffmpeg mpegs :-)).
280- added libavcodec API documentation (see apiexample.c).
281- fixed image polyphase bug (the bottom of some images could be
282 greenish).
283- added support for non clipped motion vectors (decoding only)
284 and image sizes non multiple of 16.
285- added support for AC prediction (decoding only).
286- added file overwrite confirmation (can be disabled with -y).
287- Added custom size picture to H.263 using H.263+ (Juanjo).
288
289version 0.4.1:
290
291- added MSMPEG4 (aka DIVX) compatible encoder. Changed default codec
292 of avi and asf to DIV3.
293- added -me option to set motion estimation method
294 (default=log). suppressed redundant -hq option.
295- added options -acodec and -vcodec to force a given codec (useful for
296 AVI for example).
297- fixed -an option.
298- improved dct_quantize speed.
299- factorized some motion estimation code.
300
301version 0.4.0:
302
303- removing grab code from ffserver and moved it to ffmpeg. Added multi
304 stream support to ffmpeg.
305- added timeshifting support for live feeds (option ?date=xxx in the
306 URL).
307- added high quality image resize code with polyphase filter (need
308 mmx/see optimisation). Enable multiple image size support in ffserver.
309- added multi live feed support in ffserver.
310- suppressed master feature from ffserver (it should be done with an
311 external program which opens the .ffm url and writes it to another
312 ffserver).
313- added preliminary support for video stream parsing (wav and avi half
314 done). Added proper support for audio/video file convertion in
315 ffmpeg.
316- added preliminary support for video file sending from ffserver.
317- redesigning I/O subsystem : now using URL based input and output
318 (see avio.h).
319- added wav format support.
320- added "tty user interface" to ffmpeg to stop grabbing gracefully.
321- added MMX/SSE optimizations to SAD (Sums of Absolutes Diferences)
322 (Juan J. Sierralta P. a.k.a. "Juanjo" &lt;juanjo@atmlab.utfsm.cl&gt;).
323- added MMX DCT from mpeg2_movie 1.5 (Juanjo).
324- added new motion estimation algorithms, log and phods (Juanjo).
325- changed directories : libav for format handling, libavcodec for
326 codecs.
327
328version 0.3.4:
329
330- added stereo in mpeg audio encoder.
331
332version 0.3.3:
333
334- added 'high quality' mode which use motion vectors. It can be used in
335 real time at low resolution.
336- fixed rounding problems which caused quality problems at high
337 bitrates and large gop size.
338
339version 0.3.2: small fixes
340
341- asf fixes
342- put_seek bug fix
343
344version 0.3.1: added avi/divx support
345
346- added avi support
347- added mpeg4 codec compatible with open divx. It is based on the h263
348 codec.
349- added sound for flash format (not tested)
350
351version 0.3: initial public release