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