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