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