More accurate value for log2(10)
[libav.git] / Changelog
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1Entries are sorted chronologically from oldest to youngest within each release,
2releases are sorted from youngest to oldest.
3
4
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5version <next>:
6
7- PB-frame decoding for H.263
b11163c8 8- deprecated vhook subsystem removed
3444c914 9- deprecated old scaler removed
616e899c 10- VQF demuxer
b3b5946c 11- Alpha channel scaler
effcedf7 12- PCX encoder
9edfaf3c 13- RTP packetization of H.263
08e696c0 14- RTP packetization of AMR
e6327fba 15- RTP depacketization of Vorbis
e9356be5 16- CorePNG decoding support
9189d7eb 17- Cook multichannel decoding support
276f8e2b 18- introduced avlanguage helpers in libavformat
f0b19bd3 19- 8088flex TMV demuxer and decoder
5f1ac36d 20- per-stream language-tags extraction in asfdec
ca0bb1c4 21- V210 decoder and encoder
de08ebe3 22- remaining GPL parts in AC-3 decoder converted to LGPL
cdce0fb8 23- QCP demuxer
cbfe5bee 24- SoX native format muxer and demuxer
0b175caa 25- AMR-NB decoding/encoding, AMR-WB decoding via OpenCORE libraries
94d3d6a4 26- DPX image decoder
c63ea92b 27- Electronic Arts Madcow decoder
a4276ba2 28- DivX (XSUB) subtitle encoder
0a4a0aa7 29- nonfree libamr support for AMR-NB/WB decoding/encoding removed
78e65cd7 30- Experimental AAC encoder
c2f3eec4 31- RTP depacketization of ASF and RTSP from WMS servers
9fd6b843 32- RTMP support in libavformat
3106f489 33- noX handling for OPT_BOOL X options
740e89cf 34- Wave64 demuxer
ab1eff9c 35- IEC-61937 compatible Muxer
7bd47335 36- TwinVQ decoder
c58b82a2 37- Bluray (PGS) subtitle decoder
5dd3707b 38- LPCM support in MPEG-TS (HDMV RID as found on Blu-ray disks)
c1061cc7 39- Wmapro decoder
5f14b565 40- Core Audio Format demuxer
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41- Atrac1 decoder
42- MD STUDIO audio demuxer
811e0fc2 43- RF64 support in WAV demuxer
99971952 44- MPEG-4 Audio Lossless Coding (ALS) decoder
0584b718 45- -formats option split into -formats, -codecs, -bsfs, and -protocols
7c3c53c8 46- IV8 demuxer
a3d995c1 47- CDG demuxer and decoder
4aaab0a3 48- R210 decoder
ce293510 49- Auravision Aura 1 and 2 decoders
e6565055 50- Deluxe Paint Animation playback system
d140b025 51- SIPR decoder
83ab7f18 52- Adobe Filmstrip muxer and demuxer
45aa9080 53- RTP depacketization of H.263
342c7dfd 54- Bink demuxer and audio/video decoders
4ebaec79 55- enable symbol versioning by default for linkers that support it
b9e06ddd 56- IFF PBM/ILBM bitmap decoder
084eb95f 57- concat protocol
5bebe94d 58- Indeo 5 decoder
556aa7a1 59- RTP depacketization of AMR
fa65584f 60- WMAVoice decoder
336ce917 61- FFprobe tool
4fe3edaa 62- AMR-NB decoder
de08ebe3 63
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64
65
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66version 0.5:
67
06ab9cff 68- DV50 AKA DVCPRO50 encoder, decoder, muxer and demuxer
9d53d58e 69- TechSmith Camtasia (TSCC) video decoder
d0a0bbd2 70- IBM Ultimotion (ULTI) video decoder
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71- Sierra Online audio file demuxer and decoder
72- Apple QuickDraw (qdrw) video decoder
22052247 73- Creative ADPCM audio decoder (16 bits as well as 8 bits schemes)
ad81a9fe 74- Electronic Arts Multimedia (WVE/UV2/etc.) file demuxer
ab711b3c 75- Miro VideoXL (VIXL) video decoder
b06b45c4 76- H.261 video encoder
acfd8f0f 77- QPEG video decoder
353147ed 78- Nullsoft Video (NSV) file demuxer
13dfd2b9 79- Shorten audio decoder
9c7fb608 80- LOCO video decoder
115329f1 81- Apple Lossless Audio Codec (ALAC) decoder
a8a15e9d 82- Winnov WNV1 video decoder
589f8220 83- Autodesk Animator Studio Codec (AASC) decoder
bfaad39f 84- Indeo 2 video decoder
b81f8949 85- Fraps FPS1 video decoder
e0db8cfb 86- Snow video encoder/decoder
af4ca324 87- Sonic audio encoder/decoder
108ab268 88- Vorbis audio decoder
af4ca324 89- Macromedia ADPCM decoder
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90- Duck TrueMotion 2 video decoder
91- support for decoding FLX and DTA extensions in FLIC files
b2909f1a 92- H.264 custom quantization matrices support
a8289180 93- ffserver fixed, it should now be usable again
8d1018bf 94- QDM2 audio decoder
8a2d410e 95- Real Cooker audio decoder
bf3027c8 96- TrueSpeech audio decoder
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97- WMA2 audio decoder fixed, now all files should play correctly
98- RealAudio 14.4 and 28.8 decoders fixed
108ab268 99- JPEG-LS decoder
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100- build system improvements
101- tabs and trailing whitespace removed from the codebase
108ab268 102- CamStudio video decoder
f11288da 103- AIFF/AIFF-C audio format, encoding and decoding
4accd1fd 104- ADTS AAC file reading and writing
ea395e8c 105- Creative VOC file reading and writing
4e114829 106- American Laser Games multimedia (*.mm) playback system
6a7d2c3d 107- Zip Motion Blocks Video decoder
58cf42fa 108- improved Theora/VP3 decoder
8a2d410e 109- True Audio (TTA) decoder
26376701 110- AVS demuxer and video decoder
108ab268 111- JPEG-LS encoder
348efc18 112- Smacker demuxer and decoder
dfca23e3 113- NuppelVideo/MythTV demuxer and RTjpeg decoder
fd7b1991 114- KMVC decoder
58cf42fa 115- MPEG-2 intra VLC support
2d974017 116- MPEG-2 4:2:2 encoder
0919e788 117- Flash Screen Video decoder
cc0bc648 118- GXF demuxer
6a09487e 119- Chinese AVS decoder
43dcf590 120- GXF muxer
07bf2af8 121- MXF demuxer
b394e39a 122- VC-1/WMV3/WMV9 video decoder
0ccd1bb5 123- MacIntel support
8ac17293 124- AVISynth support
eb57c889 125- VMware video decoder
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126- VP5 video decoder
127- VP6 video decoder
730581f3 128- WavPack lossless audio decoder
3689cf16 129- Targa (.TGA) picture decoder
108ab268 130- Vorbis audio encoder
dc56e0de 131- Delphine Software .cin demuxer/audio and video decoder
29f86228 132- Tiertex .seq demuxer/video decoder
f7bc5837 133- MTV demuxer
716222db 134- TIFF picture encoder and decoder
06d392a7 135- GIF picture decoder
58cf42fa 136- Intel Music Coder decoder
6a7d2c3d 137- Zip Motion Blocks Video encoder
185c7b6b 138- Musepack decoder
8adc51f2 139- Flash Screen Video encoder
150d2772 140- Theora encoding via libtheora
52548eee 141- BMP encoder
039cd4a7 142- WMA encoder
346a655d 143- GSM-MS encoder and decoder
01ca9ac3 144- DCA decoder
33a0dd37 145- DXA demuxer and decoder
52b6bad2 146- DNxHD decoder
efb0c399 147- Gamecube movie (.THP) playback system
a5fbe001 148- Blackfin optimizations
9a0ddd09 149- Interplay C93 demuxer and video decoder
1e6c6759 150- Bethsoft VID demuxer and video decoder
8e952e4d 151- CRYO APC demuxer
10e26bc7 152- Atrac3 decoder
b46d68c6 153- V.Flash PTX decoder
58cf42fa 154- RoQ muxer, RoQ audio encoder
ad39f1a7 155- Renderware TXD demuxer and decoder
4d5588cf 156- extern C declarations for C++ removed from headers
82e60541 157- sws_flags command line option
ddcf4b5d 158- codebook generator
03e3e765 159- RoQ video encoder
d3b7406c 160- QTRLE encoder
d22e8442 161- OS/2 support removed and restored again
6ea67bbb 162- AC-3 decoder
58cf42fa 163- NUT muxer
108ab268 164- additional SPARC (VIS) optimizations
e09f7d61 165- Matroska muxer
58cf42fa 166- slice-based parallel H.264 decoding
bf4a1f17 167- Monkey's Audio demuxer and decoder
8787d837 168- AMV audio and video decoder
fc4cbc16 169- DNxHD encoder
d6c52130 170- H.264 PAFF decoding
636b13c5 171- Nellymoser ASAO decoder
66f7679c 172- Beam Software SIFF demuxer and decoder
f9def9cc 173- libvorbis Vorbis decoding removed in favor of native decoder
541432c3 174- IntraX8 (J-Frame) subdecoder for WMV2 and VC-1
56dc1fdf 175- Ogg (Theora, Vorbis and FLAC) muxer
108ab268 176- The "device" muxers and demuxers are now in a new libavdevice library
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177- PC Paintbrush PCX decoder
178- Sun Rasterfile decoder
920d3609 179- TechnoTrend PVA demuxer
77c1d04d 180- Linux Media Labs MPEG-4 (LMLM4) demuxer
b264a084 181- AVM2 (Flash 9) SWF muxer
9dc92a38 182- QT variant of IMA ADPCM encoder
39fc859e 183- VFW grabber
58cf42fa 184- iPod/iPhone compatible mp4 muxer
a7129de5 185- Mimic decoder
0f3444e1 186- MSN TCP Webcam stream demuxer
86b3cf7c 187- RL2 demuxer / decoder
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188- IFF demuxer
189- 8SVX audio decoder
b00b15be 190- non-recursive Makefiles
b64c096b 191- BFI demuxer
74118c07 192- MAXIS EA XA (.xa) demuxer / decoder
2003d3da 193- BFI video decoder
ea662534 194- OMA demuxer
b517af05 195- MLP/TrueHD decoder
e1c74782 196- Electronic Arts CMV decoder
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197- Motion Pixels Video decoder
198- Motion Pixels MVI demuxer
e44bbf62 199- removed animated GIF decoder/demuxer
51c3861e 200- D-Cinema audio muxer
cfc78718 201- Electronic Arts TGV decoder
833e90dd 202- Apple Lossless Audio Codec (ALAC) encoder
7d8f3de4 203- AAC decoder
eb6fc557 204- floating point PCM encoder/decoder
cedebde1 205- MXF muxer
108ab268 206- DV100 AKA DVCPRO HD decoder and demuxer
1f6a594d 207- E-AC-3 support added to AC-3 decoder
755ba886 208- Nellymoser ASAO encoder
0c86f89a 209- ASS and SSA demuxer and muxer
d8d12c15 210- liba52 wrapper removed
0ac1dc6f 211- SVQ3 watermark decoding support
f6958006 212- Speex decoding via libspeex
42b30357 213- Electronic Arts TGQ decoder
108ab268 214- RV40 decoder
73b458e3 215- QCELP / PureVoice decoder
108ab268 216- RV30 decoder
7906f3ca 217- hybrid WavPack support
7eb68edb 218- R3D REDCODE demuxer
115d095e 219- ALSA support for playback and record
d8964f3a 220- Electronic Arts TQI decoder
9a77d59a 221- OpenJPEG based JPEG 2000 decoder
58cf42fa 222- NC (NC4600) camera file demuxer
865780ae 223- Gopher client support
bd3f81f3 224- MXF D-10 muxer
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225- generic metadata API
226
9d53d58e 227
0ca3e336 228
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229version 0.4.9-pre1:
230
4fa1c4fa 231- DV encoder, DV muxer
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232- Microsoft RLE video decoder
233- Microsoft Video-1 decoder
070ed1bc 234- Apple Animation (RLE) decoder
42cad81a 235- Apple Graphics (SMC) decoder
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236- Apple Video (RPZA) decoder
237- Cinepak decoder
238- Sega FILM (CPK) file demuxer
42cad81a 239- Westwood multimedia support (VQA & AUD files)
4120a53a 240- Id Quake II CIN playback support
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241- 8BPS video decoder
242- FLIC playback support
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243- RealVideo 2.0 (RV20) decoder
244- Duck TrueMotion v1 (DUCK) video decoder
da00f30e 245- Sierra VMD demuxer and video decoder
1defd2a8 246- MSZH and ZLIB decoder support
3b64893d 247- SVQ1 video encoder
1defd2a8 248- AMR-WB support
e0db8cfb 249- PPC optimizations
1defd2a8 250- rate distortion optimal cbp support
e0db8cfb 251- rate distorted optimal ac prediction for MPEG-4
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252- rate distorted optimal lambda->qp support
253- AAC encoding with libfaac
254- Sunplus JPEG codec (SP5X) support
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255- use Lagrange multipler instead of QP for ratecontrol
256- Theora/VP3 decoding support
1defd2a8 257- XA and ADX ADPCM codecs
e0db8cfb 258- export MPEG-2 active display area / pan scan
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259- Add support for configuring with IBM XLC
260- floating point AAN DCT
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261- initial support for zygo video (not complete)
262- RGB ffv1 support
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263- new audio/video parser API
264- av_log() system
265- av_read_frame() and av_seek_frame() support
266- missing last frame fixes
267- seek by mouse in ffplay
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268- noise reduction of DCT coefficients
269- H.263 OBMC & 4MV support
270- H.263 alternative inter vlc support
271- H.263 loop filter
272- H.263 slice structured mode
273- interlaced DCT support for MPEG-2 encoding
1defd2a8 274- stuffing to stay above min_bitrate
e0db8cfb 275- MB type & QP visualization
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276- frame stepping for ffplay
277- interlaced motion estimation
278- alternate scantable support
279- SVCD scan offset support
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280- closed GOP support
281- SSE2 FDCT
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282- quantizer noise shaping
283- G.726 ADPCM audio codec
284- MS ADPCM encoding
285- multithreaded/SMP motion estimation
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286- multithreaded/SMP encoding for MPEG-1/MPEG-2/MPEG-4/H.263
287- multithreaded/SMP decoding for MPEG-2
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288- FLAC decoder
289- Metrowerks CodeWarrior suppport
e0db8cfb 290- H.263+ custom pcf support
1defd2a8 291- nicer output for 'ffmpeg -formats'
e0db8cfb 292- Matroska demuxer
1defd2a8 293- SGI image format, encoding and decoding
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294- H.264 loop filter support
295- H.264 CABAC support
f073a393 296- nicer looking arrows for the motion vector visualization
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297- improved VCD support
298- audio timestamp drift compensation
e0db8cfb 299- MPEG-2 YUV 422/444 support
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300- polyphase kaiser windowed sinc and blackman nuttall windowed sinc audio resample
301- better image scaling
e0db8cfb 302- H.261 support
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303- correctly interleave packets during encoding
304- VIS optimized motion compensation
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305- intra_dc_precision>0 encoding support
306- support reuse of motion vectors/MB types/field select values of the source video
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307- more accurate deblock filter
308- padding support
309- many optimizations and bugfixes
055dc116 310- FunCom ISS audio file demuxer and according ADPCM decoding
2fdf638b 311
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312
313
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314version 0.4.8:
315
e0db8cfb 316- MPEG-2 video encoding (Michael)
d9d8910b 317- Id RoQ playback subsystem (Mike Melanson and Tim Ferguson)
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318- Wing Commander III Movie (.mve) file playback subsystem (Mike Melanson
319 and Mario Brito)
320- Xan DPCM audio decoder (Mario Brito)
186447f8 321- Interplay MVE playback subsystem (Mike Melanson)
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322- Duck DK3 and DK4 ADPCM audio decoders (Mike Melanson)
323
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324
325
b17e9c99 326version 0.4.7:
e07702ba 327
e0db8cfb 328- RealAudio 1.0 (14_4) and 2.0 (28_8) native decoders. Author unknown, code from mplayerhq
124ba583 329 (originally from public domain player for Amiga at http://www.honeypot.net/audio)
e0db8cfb 330- current version now also compiles with older GCC (Fabrice)
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331- 4X multimedia playback system including 4xm file demuxer (Mike
332 Melanson), and 4X video and audio codecs (Michael)
333- Creative YUV (CYUV) decoder (Mike Melanson)
334- FFV1 codec (our very simple lossless intra only codec, compresses much better
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335 than HuffYUV) (Michael)
336- ASV1 (Asus), H.264, Intel indeo3 codecs have been added (various)
337- tiny PNG encoder and decoder, tiny GIF decoder, PAM decoder (PPM with
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338 alpha support), JPEG YUV colorspace support. (Fabrice Bellard)
339- ffplay has been replaced with a newer version which uses SDL (optionally)
e0db8cfb 340 for multiplatform support (Fabrice)
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341- Sorenson Version 3 codec (SVQ3) support has been added (decoding only) - donated
342 by anonymous
343- AMR format has been added (Johannes Carlsson)
e0db8cfb 344- 3GP support has been added (Johannes Carlsson)
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345- VP3 codec has been added (Mike Melanson)
346- more MPEG-1/2 fixes
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347- better multiplatform support, MS Visual Studio fixes (various)
348- AltiVec optimizations (Magnus Damn and others)
e07702ba 349- SH4 processor support has been added (BERO)
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350- new public interfaces (avcodec_get_pix_fmt) (Roman Shaposhnick)
351- VOB streaming support (Brian Foley)
352- better MP3 autodetection (Andriy Rysin)
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353- qpel encoding (Michael)
354- 4mv+b frames encoding finally fixed (Michael)
355- chroma ME (Michael)
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356- 5 comparison functions for ME (Michael)
357- B-frame encoding speedup (Michael)
358- WMV2 codec (unfinished - Michael)
d3d10087 359- user specified diamond size for EPZS (Michael)
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360- Playstation STR playback subsystem, still experimental (Mike and Michael)
361- ASV2 codec (Michael)
362- CLJR decoder (Alex)
d3d10087 363
e0db8cfb 364.. And lots more new enhancements and fixes.
e07702ba 365
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366
367
d3d10087 368version 0.4.6:
739d6efa 369
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370- completely new integer only MPEG audio layer 1/2/3 decoder rewritten
371 from scratch
372- Recoded DCT and motion vector search with gcc (no longer depends on nasm)
373- fix quantization bug in AC3 encoder
374- added PCM codecs and format. Corrected WAV/AVI/ASF PCM issues
375- added prototype ffplay program
376- added GOB header parsing on H.263/H.263+ decoder (Juanjo)
377- bug fix on MCBPC tables of H.263 (Juanjo)
378- bug fix on DC coefficients of H.263 (Juanjo)
379- added Advanced Prediction Mode on H.263/H.263+ decoder (Juanjo)
380- now we can decode H.263 streams found in QuickTime files (Juanjo)
381- now we can decode H.263 streams found in VIVO v1 files(Juanjo)
644d98a4 382- preliminary RTP "friendly" mode for H.263/H.263+ coding. (Juanjo)
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383- added GOB header for H.263/H.263+ coding on RTP mode (Juanjo)
384- now H.263 picture size is returned on the first decoded frame (Juanjo)
7f913a35 385- added first regression tests
e0db8cfb 386- added MPEG-2 TS demuxer
a31e01c5 387- new demux API for libav
6d291820 388- more accurate and faster IDCT (Michael)
e0db8cfb 389- faster and entropy-controlled motion search (Michael)
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390- two pass video encoding (Michael)
391- new video rate control (Michael)
392- added MSMPEG4V1, MSMPEGV2 and WMV1 support (Michael)
393- great performance improvement of video encoders and decoders (Michael)
394- new and faster bit readers and vlc parsers (Michael)
e0db8cfb 395- high quality encoding mode: tries all macroblock/VLC types (Michael)
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396- added DV video decoder
397- preliminary RTP/RTSP support in ffserver and libavformat
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398- H.263+ AIC decoding/encoding support (Juanjo)
399- VCD MPEG-PS mode (Juanjo)
400- PSNR stuff (Juanjo)
401- simple stats output (Juanjo)
402- 16-bit and 15-bit RGB/BGR/GBR support (Bisqwit)
739d6efa 403
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404
405
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406version 0.4.5:
407
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408- some header fixes (Zdenek Kabelac <kabi at informatics.muni.cz>)
409- many MMX optimizations (Nick Kurshev <nickols_k at mail.ru>)
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410- added configure system (actually a small shell script)
411- added MPEG audio layer 1/2/3 decoding using LGPL'ed mpglib by
de6d9b64 412 Michael Hipp (temporary solution - waiting for integer only
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413 decoder)
414- fixed VIDIOCSYNC interrupt
415- added Intel H.263 decoding support ('I263' AVI fourCC)
416- added Real Video 1.0 decoding (needs further testing)
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417- simplified image formats again. Added PGM format (=grey
418 pgm). Renamed old PGM to PGMYUV.
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419- fixed msmpeg4 slice issues (tell me if you still find problems)
420- fixed OpenDivX bugs with newer versions (added VOL header decoding)
421- added support for MPlayer interface
422- added macroblock skip optimization
423- added MJPEG decoder
424- added mmx/mmxext IDCT from libmpeg2
0c1e384c 425- added pgmyuvpipe, ppm, and ppm_pipe formats (original patch by Celer
dd5cf2ad 426 <celer at shell.scrypt.net>)
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427- added pixel format conversion layer (e.g. for MJPEG or PPM)
428- added deinterlacing option
429- MPEG-1/2 fixes
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430- MPEG-4 vol header fixes (Jonathan Marsden <snmjbm at pacbell.net>)
431- ARM optimizations (Lionel Ulmer <lionel.ulmer at free.fr>).
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432- Windows porting of file converter
433- added MJPEG raw format (input/ouput)
434- added JPEG image format support (input/output)
de6d9b64 435
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436
437
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438version 0.4.4:
439
440- fixed some std header definitions (Bjorn Lindgren
dd5cf2ad 441 <bjorn.e.lindgren at telia.com>).
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442- added MPEG demuxer (MPEG-1 and 2 compatible).
443- added ASF demuxer
444- added prototype RM demuxer
445- added AC3 decoding (done with libac3 by Aaron Holtzman)
446- added decoding codec parameter guessing (.e.g. for MPEG, because the
447 header does not include them)
448- fixed header generation in MPEG-1, AVI and ASF muxer: wmplayer can now
449 play them (only tested video)
450- fixed H.263 white bug
451- fixed phase rounding in img resample filter
452- add MMX code for polyphase img resample filter
453- added CPU autodetection
454- added generic title/author/copyright/comment string handling (ASF and RM
455 use them)
de6d9b64 456- added SWF demux to extract MP3 track (not usable yet because no MP3
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457 decoder)
458- added fractional frame rate support
de6d9b64 459- codecs are no longer searched by read_header() (should fix ffserver
e0db8cfb 460 segfault)
de6d9b64 461
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462
463
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464version 0.4.3:
465
dd5cf2ad 466- BGR24 patch (initial patch by Jeroen Vreeken <pe1rxq at amsat.org>)
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467- fixed raw yuv output
468- added motion rounding support in MPEG-4
469- fixed motion bug rounding in MSMPEG4
470- added B-frame handling in video core
471- added full MPEG-1 decoding support
472- added partial (frame only) MPEG-2 support
de6d9b64 473- changed the FOURCC code for H.263 to "U263" to be able to see the
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474 +AVI/H.263 file with the UB Video H.263+ decoder. MPlayer works with
475 this +codec ;) (JuanJo).
476- Halfpel motion estimation after MB type selection (JuanJo)
477- added pgm and .Y.U.V output format
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478- suppressed 'img:' protocol. Simply use: /tmp/test%d.[pgm|Y] as input or
479 output.
480- added pgmpipe I/O format (original patch from Martin Aumueller
dd5cf2ad 481 <lists at reserv.at>, but changed completely since we use a format
e0db8cfb 482 instead of a protocol)
de6d9b64 483
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484
485
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486version 0.4.2:
487
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488- added H.263/MPEG-4/MSMPEG4 decoding support. MPEG-4 decoding support
489 (for OpenDivX) is almost complete: 8x8 MVs and rounding are
de6d9b64 490 missing. MSMPEG4 support is complete.
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491- added prototype MPEG-1 decoder. Only I- and P-frames handled yet (it
492 can decode ffmpeg MPEGs :-)).
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493- added libavcodec API documentation (see apiexample.c).
494- fixed image polyphase bug (the bottom of some images could be
e0db8cfb 495 greenish)
de6d9b64 496- added support for non clipped motion vectors (decoding only)
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497 and image sizes non-multiple of 16
498- added support for AC prediction (decoding only)
499- added file overwrite confirmation (can be disabled with -y)
500- added custom size picture to H.263 using H.263+ (Juanjo)
de6d9b64 501
0ca3e336 502
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503version 0.4.1:
504
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505- added MSMPEG4 (aka DivX) compatible encoder. Changed default codec
506 of AVI and ASF to DIV3.
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507- added -me option to set motion estimation method
508 (default=log). suppressed redundant -hq option.
509- added options -acodec and -vcodec to force a given codec (useful for
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510 AVI for example)
511- fixed -an option
512- improved dct_quantize speed
513- factorized some motion estimation code
de6d9b64 514
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515
516
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517version 0.4.0:
518
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519- removing grab code from ffserver and moved it to ffmpeg. Added
520 multistream support to ffmpeg.
de6d9b64 521- added timeshifting support for live feeds (option ?date=xxx in the
e0db8cfb 522 URL)
de6d9b64 523- added high quality image resize code with polyphase filter (need
56cc85a0 524 mmx/see optimization). Enable multiple image size support in ffserver.
e0db8cfb 525- added multi live feed support in ffserver
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526- suppressed master feature from ffserver (it should be done with an
527 external program which opens the .ffm url and writes it to another
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528 ffserver)
529- added preliminary support for video stream parsing (WAV and AVI half
530 done). Added proper support for audio/video file conversion in
de6d9b64 531 ffmpeg.
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532- added preliminary support for video file sending from ffserver
533- redesigning I/O subsystem: now using URL based input and output
534 (see avio.h)
535- added WAV format support
536- added "tty user interface" to ffmpeg to stop grabbing gracefully
537- added MMX/SSE optimizations to SAD (Sums of Absolutes Differences)
dd5cf2ad 538 (Juan J. Sierralta P. a.k.a. "Juanjo" <juanjo at atmlab.utfsm.cl>)
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539- added MMX DCT from mpeg2_movie 1.5 (Juanjo)
540- added new motion estimation algorithms, log and phods (Juanjo)
541- changed directories: libav for format handling, libavcodec for
542 codecs
de6d9b64 543
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544
545
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546version 0.3.4:
547
e0db8cfb 548- added stereo in MPEG audio encoder
de6d9b64 549
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550
551
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552version 0.3.3:
553
554- added 'high quality' mode which use motion vectors. It can be used in
555 real time at low resolution.
556- fixed rounding problems which caused quality problems at high
e0db8cfb 557 bitrates and large GOP size
de6d9b64 558
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559
560
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561version 0.3.2: small fixes
562
e0db8cfb 563- ASF fixes
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564- put_seek bug fix
565
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566
567
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568version 0.3.1: added avi/divx support
569
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570- added AVI support
571- added MPEG-4 codec compatible with OpenDivX. It is based on the H.263 codec
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572- added sound for flash format (not tested)
573
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574
575
de6d9b64 576version 0.3: initial public release