1Entries are sorted chronologically from oldest to youngest within each release,
2releases are sorted from youngest to oldest.
3
4
5version 0.5.1:
6
7- build system updates
8- documentation updates
9- fix for GPL code in libswscale that was erroneously activated
10- AltiVec code in libswscale is now LGPL
11- remaining GPL parts in AC-3 decoder converted to LGPL
12- (L)GPL license upgrade support
13- AMR-NB decoding/encoding, AMR-WB decoding via OpenCORE libraries
14- enable symbol versioning by default for linkers that support it
15- backport av_lockmgr_register(), see doc/APIchanges for details
16- security fixes for:
17  - ASF, Ogg and MOV demuxers
18  - FFv1, H.264, HuffYUV, MLP, MPEG audio and Snow decoders
19
20
21
22version 0.5:
23
24- The "device" muxers and demuxers are now in a new libavdevice library
25- DV50 AKA DVCPRO50 encoder, decoder, muxer and demuxer
26- DV100 AKA DVCPRO HD decoder and demuxer
27- TechSmith Camtasia (TSCC) video decoder
28- IBM Ultimotion (ULTI) video decoder
29- Sierra Online audio file demuxer and decoder
30- Apple QuickDraw (qdrw) video decoder
31- Creative ADPCM audio decoder (16 bits as well as 8 bits schemes)
32- Electronic Arts Multimedia (WVE/UV2/etc.) file demuxer
33- Miro VideoXL (VIXL) video decoder
34- H.261 video encoder
35- QPEG video decoder
36- Nullsoft Video (NSV) file demuxer
37- Shorten audio decoder
38- LOCO video decoder
39- Apple Lossless Audio Codec (ALAC) decoder
40- Winnov WNV1 video decoder
41- Autodesk Animator Studio Codec (AASC) decoder
42- Indeo 2 video decoder
43- Fraps FPS1 video decoder
44- Snow video encoder/decoder
45- Sonic audio encoder/decoder
46- Vorbis audio encoder/decoder
47- Macromedia ADPCM decoder
48- Duck TrueMotion 2 video decoder
49- support for decoding FLX and DTA extensions in FLIC files
50- H.264 custom quantization matrices support
51- ffserver fixed, it should now be usable again
52- QDM2 audio decoder
53- Real Cooker audio decoder
54- TrueSpeech audio decoder
55- WMA2 audio decoder fixed, now all files should play correctly
56- RealAudio 14.4 and 28.8 decoders fixed
57- JPEG-LS encoder and decoder
58- CamStudio video decoder
59- build system improvements
60- tabs and trailing whitespace removed from the codebase
61- AIFF/AIFF-C audio format, encoding and decoding
62- ADTS AAC file reading and writing
63- Creative VOC file reading and writing
64- American Laser Games multimedia (*.mm) playback system
65- Zip Blocks Motion Video decoder and encoder
66- improved Theora/VP3 decoder
67- True Audio (TTA) decoder
68- AVS demuxer and video decoder
69- Smacker demuxer and decoder
70- NuppelVideo/MythTV demuxer and RTjpeg decoder
71- KMVC decoder
72- MPEG-2 intra VLC support
73- MPEG-2 4:2:2 encoder
74- Flash Screen Video decoder
75- GXF demuxer
76- Chinese AVS decoder
77- GXF muxer
78- MXF demuxer
79- VC-1/WMV3/WMV9 video decoder
80- MacIntel support
81- AVISynth support
82- VMware video decoder
83- VP5 video decoder
84- VP6 video decoder
85- WavPack lossless audio decoder
86- Targa (.TGA) picture decoder
87- Delphine Software .cin demuxer/audio and video decoder
88- Tiertex .seq demuxer/video decoder
89- MTV demuxer
90- TIFF picture encoder and decoder
91- GIF picture decoder
92- Intel Music Coder decoder
93- Musepack decoder
94- Flash Screen Video encoder
95- Theora encoding via libtheora
96- BMP encoder
97- WMA encoder
98- GSM-MS encoder and decoder
99- DCA decoder
100- DXA demuxer and decoder
101- DNxHD decoder
102- Gamecube movie (.THP) playback system
103- Blackfin optimizations
104- Interplay C93 demuxer and video decoder
105- Bethsoft VID demuxer and video decoder
106- CRYO APC demuxer
107- Atrac3 decoder
108- V.Flash PTX decoder
109- RoQ muxer, RoQ audio encoder
110- Renderware TXD demuxer and decoder
111- extern C declarations for C++ removed from headers
112- sws_flags command line option
113- codebook generator
114- RoQ video encoder
115- QTRLE encoder
116- OS/2 support removed and restored again
117- AC-3 decoder
118- NUT muxer
119- Matroska muxer
120- slice-based parallel H.264 decoding
121- Monkey's Audio demuxer and decoder
122- additional SPARC (VIS) optimizations
123- AMV audio and video decoder
124- DNxHD encoder
125- H.264 PAFF decoding
126- Nellymoser ASAO decoder
127- Beam Software SIFF demuxer and decoder
128- libvorbis Vorbis decoding removed in favor of native decoder
129- IntraX8 (J-Frame) subdecoder for WMV2 and VC-1
130- Ogg (Theora, Vorbis and FLAC) muxer
131- PC Paintbrush PCX decoder
132- Sun Rasterfile decoder
133- TechnoTrend PVA demuxer
134- Linux Media Labs MPEG-4 (LMLM4) demuxer
135- AVM2 (Flash 9) SWF muxer
136- QT variant of IMA ADPCM encoder
137- VFW grabber
138- iPod/iPhone compatible mp4 muxer
139- Mimic decoder
140- MSN TCP Webcam stream demuxer
141- RL2 demuxer / decoder
142- IFF demuxer
143- 8SVX audio decoder
144- non-recursive Makefiles
145- BFI demuxer
146- MAXIS EA XA (.xa) demuxer / decoder
147- BFI video decoder
148- OMA demuxer
149- MLP/TrueHD decoder
150- Electronic Arts CMV decoder
151- Motion Pixels Video decoder
152- Motion Pixels MVI demuxer
153- removed animated GIF decoder/demuxer
154- D-Cinema audio muxer
155- Electronic Arts TGV decoder
156- Apple Lossless Audio Codec (ALAC) encoder
157- AAC decoder
158- floating point PCM encoder/decoder
159- MXF muxer
160- E-AC-3 support added to AC-3 decoder
161- Nellymoser ASAO encoder
162- ASS and SSA demuxer and muxer
163- liba52 wrapper removed
164- SVQ3 watermark decoding support
165- Speex decoding via libspeex
166- Electronic Arts TGQ decoder
167- RV30 and RV40 decoder
168- QCELP / PureVoice decoder
169- hybrid WavPack support
170- R3D REDCODE demuxer
171- ALSA support for playback and record
172- Electronic Arts TQI decoder
173- OpenJPEG based JPEG 2000 decoder
174- NC (NC4600) camera file demuxer
175- Gopher client support
176- MXF D-10 muxer
177- generic metadata API
178
179
180version 0.4.9-pre1:
181
182- DV encoder, DV muxer
183- Microsoft RLE video decoder
184- Microsoft Video-1 decoder
185- Apple Animation (RLE) decoder
186- Apple Graphics (SMC) decoder
187- Apple Video (RPZA) decoder
188- Cinepak decoder
189- Sega FILM (CPK) file demuxer
190- Westwood multimedia support (VQA & AUD files)
191- Id Quake II CIN playback support
192- 8BPS video decoder
193- FLIC playback support
194- RealVideo 2.0 (RV20) decoder
195- Duck TrueMotion v1 (DUCK) video decoder
196- Sierra VMD demuxer and video decoder
197- MSZH and ZLIB decoder support
198- SVQ1 video encoder
199- AMR-WB support
200- PPC optimizations
201- rate distortion optimal cbp support
202- rate distorted optimal ac prediction for MPEG-4
203- rate distorted optimal lambda->qp support
204- AAC encoding with libfaac
205- Sunplus JPEG codec (SP5X) support
206- use Lagrange multipler instead of QP for ratecontrol
207- Theora/VP3 decoding support
208- XA and ADX ADPCM codecs
209- export MPEG-2 active display area / pan scan
210- Add support for configuring with IBM XLC
211- floating point AAN DCT
212- initial support for zygo video (not complete)
213- RGB ffv1 support
214- new audio/video parser API
215- av_log() system
216- av_read_frame() and av_seek_frame() support
217- missing last frame fixes
218- seek by mouse in ffplay
219- noise reduction of DCT coefficients
220- H.263 OBMC & 4MV support
221- H.263 alternative inter vlc support
222- H.263 loop filter
223- H.263 slice structured mode
224- interlaced DCT support for MPEG-2 encoding
225- stuffing to stay above min_bitrate
226- MB type & QP visualization
227- frame stepping for ffplay
228- interlaced motion estimation
229- alternate scantable support
230- SVCD scan offset support
231- closed GOP support
232- SSE2 FDCT
233- quantizer noise shaping
234- G.726 ADPCM audio codec
235- MS ADPCM encoding
236- multithreaded/SMP motion estimation
237- multithreaded/SMP encoding for MPEG-1/MPEG-2/MPEG-4/H.263
238- multithreaded/SMP decoding for MPEG-2
239- FLAC decoder
240- Metrowerks CodeWarrior suppport
241- H.263+ custom pcf support
242- nicer output for 'ffmpeg -formats'
243- Matroska demuxer
244- SGI image format, encoding and decoding
245- H.264 loop filter support
246- H.264 CABAC support
247- nicer looking arrows for the motion vector visualization
248- improved VCD support
249- audio timestamp drift compensation
250- MPEG-2 YUV 422/444 support
251- polyphase kaiser windowed sinc and blackman nuttall windowed sinc audio resample
252- better image scaling
253- H.261 support
254- correctly interleave packets during encoding
255- VIS optimized motion compensation
256- intra_dc_precision>0 encoding support
257- support reuse of motion vectors/MB types/field select values of the source video
258- more accurate deblock filter
259- padding support
260- many optimizations and bugfixes
261- FunCom ISS audio file demuxer and according ADPCM decoding
262
263version 0.4.8:
264
265- MPEG-2 video encoding (Michael)
266- Id RoQ playback subsystem (Mike Melanson and Tim Ferguson)
267- Wing Commander III Movie (.mve) file playback subsystem (Mike Melanson
268  and Mario Brito)
269- Xan DPCM audio decoder (Mario Brito)
270- Interplay MVE playback subsystem (Mike Melanson)
271- Duck DK3 and DK4 ADPCM audio decoders (Mike Melanson)
272
273version 0.4.7:
274
275- RealAudio 1.0 (14_4) and 2.0 (28_8) native decoders. Author unknown, code from mplayerhq
276  (originally from public domain player for Amiga at http://www.honeypot.net/audio)
277- current version now also compiles with older GCC (Fabrice)
278- 4X multimedia playback system including 4xm file demuxer (Mike
279  Melanson), and 4X video and audio codecs (Michael)
280- Creative YUV (CYUV) decoder (Mike Melanson)
281- FFV1 codec (our very simple lossless intra only codec, compresses much better
282  than HuffYUV) (Michael)
283- ASV1 (Asus), H.264, Intel indeo3 codecs have been added (various)
284- tiny PNG encoder and decoder, tiny GIF decoder, PAM decoder (PPM with
285  alpha support), JPEG YUV colorspace support. (Fabrice Bellard)
286- ffplay has been replaced with a newer version which uses SDL (optionally)
287  for multiplatform support (Fabrice)
288- Sorenson Version 3 codec (SVQ3) support has been added (decoding only) - donated
289  by anonymous
290- AMR format has been added (Johannes Carlsson)
291- 3GP support has been added (Johannes Carlsson)
292- VP3 codec has been added (Mike Melanson)
293- more MPEG-1/2 fixes
294- better multiplatform support, MS Visual Studio fixes (various)
295- AltiVec optimizations (Magnus Damn and others)
296- SH4 processor support has been added (BERO)
297- new public interfaces (avcodec_get_pix_fmt) (Roman Shaposhnick)
298- VOB streaming support (Brian Foley)
299- better MP3 autodetection (Andriy Rysin)
300- qpel encoding (Michael)
301- 4mv+b frames encoding finally fixed (Michael)
302- chroma ME (Michael)
303- 5 comparison functions for ME (Michael)
304- B-frame encoding speedup (Michael)
305- WMV2 codec (unfinished - Michael)
306- user specified diamond size for EPZS (Michael)
307- Playstation STR playback subsystem, still experimental (Mike and Michael)
308- ASV2 codec (Michael)
309- CLJR decoder (Alex)
310
311.. And lots more new enhancements and fixes.
312
313version 0.4.6:
314
315- completely new integer only MPEG audio layer 1/2/3 decoder rewritten
316  from scratch
317- Recoded DCT and motion vector search with gcc (no longer depends on nasm)
318- fix quantization bug in AC3 encoder
319- added PCM codecs and format. Corrected WAV/AVI/ASF PCM issues
320- added prototype ffplay program
321- added GOB header parsing on H.263/H.263+ decoder (Juanjo)
322- bug fix on MCBPC tables of H.263 (Juanjo)
323- bug fix on DC coefficients of H.263 (Juanjo)
324- added Advanced Prediction Mode on H.263/H.263+ decoder (Juanjo)
325- now we can decode H.263 streams found in QuickTime files (Juanjo)
326- now we can decode H.263 streams found in VIVO v1 files(Juanjo)
327- preliminary RTP "friendly" mode for H.263/H.263+ coding. (Juanjo)
328- added GOB header for H.263/H.263+ coding on RTP mode (Juanjo)
329- now H.263 picture size is returned on the first decoded frame (Juanjo)
330- added first regression tests
331- added MPEG-2 TS demuxer
332- new demux API for libav
333- more accurate and faster IDCT (Michael)
334- faster and entropy-controlled motion search (Michael)
335- two pass video encoding (Michael)
336- new video rate control (Michael)
337- added MSMPEG4V1, MSMPEGV2 and WMV1 support (Michael)
338- great performance improvement of video encoders and decoders (Michael)
339- new and faster bit readers and vlc parsers (Michael)
340- high quality encoding mode: tries all macroblock/VLC types (Michael)
341- added DV video decoder
342- preliminary RTP/RTSP support in ffserver and libavformat
343- H.263+ AIC decoding/encoding support (Juanjo)
344- VCD MPEG-PS mode (Juanjo)
345- PSNR stuff (Juanjo)
346- simple stats output (Juanjo)
347- 16-bit and 15-bit RGB/BGR/GBR support (Bisqwit)
348
349version 0.4.5:
350
351- some header fixes (Zdenek Kabelac <kabi at informatics.muni.cz>)
352- many MMX optimizations (Nick Kurshev <nickols_k at mail.ru>)
353- added configure system (actually a small shell script)
354- added MPEG audio layer 1/2/3 decoding using LGPL'ed mpglib by
355  Michael Hipp (temporary solution - waiting for integer only
356  decoder)
357- fixed VIDIOCSYNC interrupt
358- added Intel H.263 decoding support ('I263' AVI fourCC)
359- added Real Video 1.0 decoding (needs further testing)
360- simplified image formats again. Added PGM format (=grey
361  pgm). Renamed old PGM to PGMYUV.
362- fixed msmpeg4 slice issues (tell me if you still find problems)
363- fixed OpenDivX bugs with newer versions (added VOL header decoding)
364- added support for MPlayer interface
365- added macroblock skip optimization
366- added MJPEG decoder
367- added mmx/mmxext IDCT from libmpeg2
368- added pgmyuvpipe, ppm, and ppm_pipe formats (original patch by Celer
369  <celer at shell.scrypt.net>)
370- added pixel format conversion layer (e.g. for MJPEG or PPM)
371- added deinterlacing option
372- MPEG-1/2 fixes
373- MPEG-4 vol header fixes (Jonathan Marsden <snmjbm at pacbell.net>)
374- ARM optimizations (Lionel Ulmer <lionel.ulmer at free.fr>).
375- Windows porting of file converter
376- added MJPEG raw format (input/ouput)
377- added JPEG image format support (input/output)
378
379version 0.4.4:
380
381- fixed some std header definitions (Bjorn Lindgren
382  <bjorn.e.lindgren at telia.com>).
383- added MPEG demuxer (MPEG-1 and 2 compatible).
384- added ASF demuxer
385- added prototype RM demuxer
386- added AC3 decoding (done with libac3 by Aaron Holtzman)
387- added decoding codec parameter guessing (.e.g. for MPEG, because the
388  header does not include them)
389- fixed header generation in MPEG-1, AVI and ASF muxer: wmplayer can now
390  play them (only tested video)
391- fixed H.263 white bug
392- fixed phase rounding in img resample filter
393- add MMX code for polyphase img resample filter
394- added CPU autodetection
395- added generic title/author/copyright/comment string handling (ASF and RM
396  use them)
397- added SWF demux to extract MP3 track (not usable yet because no MP3
398  decoder)
399- added fractional frame rate support
400- codecs are no longer searched by read_header() (should fix ffserver
401  segfault)
402
403version 0.4.3:
404
405- BGR24 patch (initial patch by Jeroen Vreeken <pe1rxq at amsat.org>)
406- fixed raw yuv output
407- added motion rounding support in MPEG-4
408- fixed motion bug rounding in MSMPEG4
409- added B-frame handling in video core
410- added full MPEG-1 decoding support
411- added partial (frame only) MPEG-2 support
412- changed the FOURCC code for H.263 to "U263" to be able to see the
413  +AVI/H.263 file with the UB Video H.263+ decoder. MPlayer works with
414  this +codec ;) (JuanJo).
415- Halfpel motion estimation after MB type selection (JuanJo)
416- added pgm and .Y.U.V output format
417- suppressed 'img:' protocol. Simply use: /tmp/test%d.[pgm|Y] as input or
418  output.
419- added pgmpipe I/O format (original patch from Martin Aumueller
420  <lists at reserv.at>, but changed completely since we use a format
421  instead of a protocol)
422
423version 0.4.2:
424
425- added H.263/MPEG-4/MSMPEG4 decoding support. MPEG-4 decoding support
426  (for OpenDivX) is almost complete: 8x8 MVs and rounding are
427  missing. MSMPEG4 support is complete.
428- added prototype MPEG-1 decoder. Only I- and P-frames handled yet (it
429  can decode ffmpeg MPEGs :-)).
430- added libavcodec API documentation (see apiexample.c).
431- fixed image polyphase bug (the bottom of some images could be
432  greenish)
433- added support for non clipped motion vectors (decoding only)
434  and image sizes non-multiple of 16
435- added support for AC prediction (decoding only)
436- added file overwrite confirmation (can be disabled with -y)
437- added custom size picture to H.263 using H.263+ (Juanjo)
438
439version 0.4.1:
440
441- added MSMPEG4 (aka DivX) compatible encoder. Changed default codec
442  of AVI and ASF to DIV3.
443- added -me option to set motion estimation method
444  (default=log). suppressed redundant -hq option.
445- added options -acodec and -vcodec to force a given codec (useful for
446  AVI for example)
447- fixed -an option
448- improved dct_quantize speed
449- factorized some motion estimation code
450
451version 0.4.0:
452
453- removing grab code from ffserver and moved it to ffmpeg. Added
454  multistream support to ffmpeg.
455- added timeshifting support for live feeds (option ?date=xxx in the
456  URL)
457- added high quality image resize code with polyphase filter (need
458  mmx/see optimization). Enable multiple image size support in ffserver.
459- added multi live feed support in ffserver
460- suppressed master feature from ffserver (it should be done with an
461  external program which opens the .ffm url and writes it to another
462  ffserver)
463- added preliminary support for video stream parsing (WAV and AVI half
464  done). Added proper support for audio/video file conversion in
465  ffmpeg.
466- added preliminary support for video file sending from ffserver
467- redesigning I/O subsystem: now using URL based input and output
468  (see avio.h)
469- added WAV format support
470- added "tty user interface" to ffmpeg to stop grabbing gracefully
471- added MMX/SSE optimizations to SAD (Sums of Absolutes Differences)
472  (Juan J. Sierralta P. a.k.a. "Juanjo" <juanjo at atmlab.utfsm.cl>)
473- added MMX DCT from mpeg2_movie 1.5 (Juanjo)
474- added new motion estimation algorithms, log and phods (Juanjo)
475- changed directories: libav for format handling, libavcodec for
476  codecs
477
478version 0.3.4:
479
480- added stereo in MPEG audio encoder
481
482version 0.3.3:
483
484- added 'high quality' mode which use motion vectors. It can be used in
485  real time at low resolution.
486- fixed rounding problems which caused quality problems at high
487  bitrates and large GOP size
488
489version 0.3.2: small fixes
490
491- ASF fixes
492- put_seek bug fix
493
494version 0.3.1: added avi/divx support
495
496- added AVI support
497- added MPEG-4 codec compatible with OpenDivX. It is based on the H.263 codec
498- added sound for flash format (not tested)
499
500version 0.3: initial public release
501