Add log_level_offset to AVCodecContext.
[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
57a80d79 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)
57a80d79 39- WMA Pro 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
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60- WMA Voice decoder
61- ffprobe tool
4fe3edaa 62- AMR-NB decoder
6f5a3d0a 63- RTSP muxer
ed492b61 64- HE-AAC v1 decoder
bf354122 65- Kega Game Video (KGV1) decoder
59b4b540 66- VorbisComment writing for FLAC, Ogg FLAC and Ogg Speex files
887af2aa 67- RTP depacketization of Theora
b26708d5 68- HTTP Digest authentication
0f943ce6 69- RTMP/RTMPT/RTMPS/RTMPE/RTMPTE protocol support via librtmp
38b9d8b8 70- Psygnosis YOP demuxer and video decoder
ca6e7708 71- spectral extension support in the E-AC-3 decoder
ac1c9564 72- unsharp video filter
de08ebe3 73
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74
75
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76version 0.5:
77
06ab9cff 78- DV50 AKA DVCPRO50 encoder, decoder, muxer and demuxer
9d53d58e 79- TechSmith Camtasia (TSCC) video decoder
d0a0bbd2 80- IBM Ultimotion (ULTI) video decoder
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81- Sierra Online audio file demuxer and decoder
82- Apple QuickDraw (qdrw) video decoder
22052247 83- Creative ADPCM audio decoder (16 bits as well as 8 bits schemes)
ad81a9fe 84- Electronic Arts Multimedia (WVE/UV2/etc.) file demuxer
ab711b3c 85- Miro VideoXL (VIXL) video decoder
b06b45c4 86- H.261 video encoder
acfd8f0f 87- QPEG video decoder
353147ed 88- Nullsoft Video (NSV) file demuxer
13dfd2b9 89- Shorten audio decoder
9c7fb608 90- LOCO video decoder
115329f1 91- Apple Lossless Audio Codec (ALAC) decoder
a8a15e9d 92- Winnov WNV1 video decoder
589f8220 93- Autodesk Animator Studio Codec (AASC) decoder
bfaad39f 94- Indeo 2 video decoder
b81f8949 95- Fraps FPS1 video decoder
e0db8cfb 96- Snow video encoder/decoder
af4ca324 97- Sonic audio encoder/decoder
108ab268 98- Vorbis audio decoder
af4ca324 99- Macromedia ADPCM decoder
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100- Duck TrueMotion 2 video decoder
101- support for decoding FLX and DTA extensions in FLIC files
b2909f1a 102- H.264 custom quantization matrices support
a8289180 103- ffserver fixed, it should now be usable again
8d1018bf 104- QDM2 audio decoder
8a2d410e 105- Real Cooker audio decoder
bf3027c8 106- TrueSpeech audio decoder
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107- WMA2 audio decoder fixed, now all files should play correctly
108- RealAudio 14.4 and 28.8 decoders fixed
108ab268 109- JPEG-LS decoder
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110- build system improvements
111- tabs and trailing whitespace removed from the codebase
108ab268 112- CamStudio video decoder
f11288da 113- AIFF/AIFF-C audio format, encoding and decoding
4accd1fd 114- ADTS AAC file reading and writing
ea395e8c 115- Creative VOC file reading and writing
4e114829 116- American Laser Games multimedia (*.mm) playback system
6a7d2c3d 117- Zip Motion Blocks Video decoder
58cf42fa 118- improved Theora/VP3 decoder
8a2d410e 119- True Audio (TTA) decoder
26376701 120- AVS demuxer and video decoder
108ab268 121- JPEG-LS encoder
348efc18 122- Smacker demuxer and decoder
dfca23e3 123- NuppelVideo/MythTV demuxer and RTjpeg decoder
fd7b1991 124- KMVC decoder
58cf42fa 125- MPEG-2 intra VLC support
2d974017 126- MPEG-2 4:2:2 encoder
0919e788 127- Flash Screen Video decoder
cc0bc648 128- GXF demuxer
6a09487e 129- Chinese AVS decoder
43dcf590 130- GXF muxer
07bf2af8 131- MXF demuxer
b394e39a 132- VC-1/WMV3/WMV9 video decoder
0ccd1bb5 133- MacIntel support
8ac17293 134- AVISynth support
eb57c889 135- VMware video decoder
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136- VP5 video decoder
137- VP6 video decoder
730581f3 138- WavPack lossless audio decoder
3689cf16 139- Targa (.TGA) picture decoder
108ab268 140- Vorbis audio encoder
dc56e0de 141- Delphine Software .cin demuxer/audio and video decoder
29f86228 142- Tiertex .seq demuxer/video decoder
f7bc5837 143- MTV demuxer
716222db 144- TIFF picture encoder and decoder
06d392a7 145- GIF picture decoder
58cf42fa 146- Intel Music Coder decoder
6a7d2c3d 147- Zip Motion Blocks Video encoder
185c7b6b 148- Musepack decoder
8adc51f2 149- Flash Screen Video encoder
150d2772 150- Theora encoding via libtheora
52548eee 151- BMP encoder
039cd4a7 152- WMA encoder
346a655d 153- GSM-MS encoder and decoder
01ca9ac3 154- DCA decoder
33a0dd37 155- DXA demuxer and decoder
52b6bad2 156- DNxHD decoder
efb0c399 157- Gamecube movie (.THP) playback system
a5fbe001 158- Blackfin optimizations
9a0ddd09 159- Interplay C93 demuxer and video decoder
1e6c6759 160- Bethsoft VID demuxer and video decoder
8e952e4d 161- CRYO APC demuxer
10e26bc7 162- Atrac3 decoder
b46d68c6 163- V.Flash PTX decoder
58cf42fa 164- RoQ muxer, RoQ audio encoder
ad39f1a7 165- Renderware TXD demuxer and decoder
4d5588cf 166- extern C declarations for C++ removed from headers
82e60541 167- sws_flags command line option
ddcf4b5d 168- codebook generator
03e3e765 169- RoQ video encoder
d3b7406c 170- QTRLE encoder
d22e8442 171- OS/2 support removed and restored again
6ea67bbb 172- AC-3 decoder
58cf42fa 173- NUT muxer
108ab268 174- additional SPARC (VIS) optimizations
e09f7d61 175- Matroska muxer
58cf42fa 176- slice-based parallel H.264 decoding
bf4a1f17 177- Monkey's Audio demuxer and decoder
8787d837 178- AMV audio and video decoder
fc4cbc16 179- DNxHD encoder
d6c52130 180- H.264 PAFF decoding
636b13c5 181- Nellymoser ASAO decoder
66f7679c 182- Beam Software SIFF demuxer and decoder
f9def9cc 183- libvorbis Vorbis decoding removed in favor of native decoder
541432c3 184- IntraX8 (J-Frame) subdecoder for WMV2 and VC-1
56dc1fdf 185- Ogg (Theora, Vorbis and FLAC) muxer
108ab268 186- The "device" muxers and demuxers are now in a new libavdevice library
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187- PC Paintbrush PCX decoder
188- Sun Rasterfile decoder
920d3609 189- TechnoTrend PVA demuxer
77c1d04d 190- Linux Media Labs MPEG-4 (LMLM4) demuxer
b264a084 191- AVM2 (Flash 9) SWF muxer
9dc92a38 192- QT variant of IMA ADPCM encoder
39fc859e 193- VFW grabber
58cf42fa 194- iPod/iPhone compatible mp4 muxer
a7129de5 195- Mimic decoder
0f3444e1 196- MSN TCP Webcam stream demuxer
86b3cf7c 197- RL2 demuxer / decoder
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198- IFF demuxer
199- 8SVX audio decoder
b00b15be 200- non-recursive Makefiles
b64c096b 201- BFI demuxer
74118c07 202- MAXIS EA XA (.xa) demuxer / decoder
2003d3da 203- BFI video decoder
ea662534 204- OMA demuxer
b517af05 205- MLP/TrueHD decoder
e1c74782 206- Electronic Arts CMV decoder
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207- Motion Pixels Video decoder
208- Motion Pixels MVI demuxer
e44bbf62 209- removed animated GIF decoder/demuxer
51c3861e 210- D-Cinema audio muxer
cfc78718 211- Electronic Arts TGV decoder
833e90dd 212- Apple Lossless Audio Codec (ALAC) encoder
7d8f3de4 213- AAC decoder
eb6fc557 214- floating point PCM encoder/decoder
cedebde1 215- MXF muxer
108ab268 216- DV100 AKA DVCPRO HD decoder and demuxer
1f6a594d 217- E-AC-3 support added to AC-3 decoder
755ba886 218- Nellymoser ASAO encoder
0c86f89a 219- ASS and SSA demuxer and muxer
d8d12c15 220- liba52 wrapper removed
0ac1dc6f 221- SVQ3 watermark decoding support
f6958006 222- Speex decoding via libspeex
42b30357 223- Electronic Arts TGQ decoder
108ab268 224- RV40 decoder
73b458e3 225- QCELP / PureVoice decoder
108ab268 226- RV30 decoder
7906f3ca 227- hybrid WavPack support
7eb68edb 228- R3D REDCODE demuxer
115d095e 229- ALSA support for playback and record
d8964f3a 230- Electronic Arts TQI decoder
9a77d59a 231- OpenJPEG based JPEG 2000 decoder
58cf42fa 232- NC (NC4600) camera file demuxer
865780ae 233- Gopher client support
bd3f81f3 234- MXF D-10 muxer
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235- generic metadata API
236
9d53d58e 237
0ca3e336 238
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239version 0.4.9-pre1:
240
4fa1c4fa 241- DV encoder, DV muxer
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242- Microsoft RLE video decoder
243- Microsoft Video-1 decoder
070ed1bc 244- Apple Animation (RLE) decoder
42cad81a 245- Apple Graphics (SMC) decoder
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246- Apple Video (RPZA) decoder
247- Cinepak decoder
248- Sega FILM (CPK) file demuxer
42cad81a 249- Westwood multimedia support (VQA & AUD files)
4120a53a 250- Id Quake II CIN playback support
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251- 8BPS video decoder
252- FLIC playback support
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253- RealVideo 2.0 (RV20) decoder
254- Duck TrueMotion v1 (DUCK) video decoder
da00f30e 255- Sierra VMD demuxer and video decoder
1defd2a8 256- MSZH and ZLIB decoder support
3b64893d 257- SVQ1 video encoder
1defd2a8 258- AMR-WB support
e0db8cfb 259- PPC optimizations
1defd2a8 260- rate distortion optimal cbp support
e0db8cfb 261- rate distorted optimal ac prediction for MPEG-4
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262- rate distorted optimal lambda->qp support
263- AAC encoding with libfaac
264- Sunplus JPEG codec (SP5X) support
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265- use Lagrange multipler instead of QP for ratecontrol
266- Theora/VP3 decoding support
1defd2a8 267- XA and ADX ADPCM codecs
e0db8cfb 268- export MPEG-2 active display area / pan scan
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269- Add support for configuring with IBM XLC
270- floating point AAN DCT
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271- initial support for zygo video (not complete)
272- RGB ffv1 support
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273- new audio/video parser API
274- av_log() system
275- av_read_frame() and av_seek_frame() support
276- missing last frame fixes
277- seek by mouse in ffplay
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278- noise reduction of DCT coefficients
279- H.263 OBMC & 4MV support
280- H.263 alternative inter vlc support
281- H.263 loop filter
282- H.263 slice structured mode
283- interlaced DCT support for MPEG-2 encoding
1defd2a8 284- stuffing to stay above min_bitrate
e0db8cfb 285- MB type & QP visualization
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286- frame stepping for ffplay
287- interlaced motion estimation
288- alternate scantable support
289- SVCD scan offset support
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290- closed GOP support
291- SSE2 FDCT
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292- quantizer noise shaping
293- G.726 ADPCM audio codec
294- MS ADPCM encoding
295- multithreaded/SMP motion estimation
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296- multithreaded/SMP encoding for MPEG-1/MPEG-2/MPEG-4/H.263
297- multithreaded/SMP decoding for MPEG-2
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298- FLAC decoder
299- Metrowerks CodeWarrior suppport
e0db8cfb 300- H.263+ custom pcf support
1defd2a8 301- nicer output for 'ffmpeg -formats'
e0db8cfb 302- Matroska demuxer
1defd2a8 303- SGI image format, encoding and decoding
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304- H.264 loop filter support
305- H.264 CABAC support
f073a393 306- nicer looking arrows for the motion vector visualization
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307- improved VCD support
308- audio timestamp drift compensation
e0db8cfb 309- MPEG-2 YUV 422/444 support
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310- polyphase kaiser windowed sinc and blackman nuttall windowed sinc audio resample
311- better image scaling
e0db8cfb 312- H.261 support
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313- correctly interleave packets during encoding
314- VIS optimized motion compensation
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315- intra_dc_precision>0 encoding support
316- support reuse of motion vectors/MB types/field select values of the source video
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317- more accurate deblock filter
318- padding support
319- many optimizations and bugfixes
055dc116 320- FunCom ISS audio file demuxer and according ADPCM decoding
2fdf638b 321
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322
323
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324version 0.4.8:
325
e0db8cfb 326- MPEG-2 video encoding (Michael)
d9d8910b 327- Id RoQ playback subsystem (Mike Melanson and Tim Ferguson)
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328- Wing Commander III Movie (.mve) file playback subsystem (Mike Melanson
329 and Mario Brito)
330- Xan DPCM audio decoder (Mario Brito)
186447f8 331- Interplay MVE playback subsystem (Mike Melanson)
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332- Duck DK3 and DK4 ADPCM audio decoders (Mike Melanson)
333
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334
335
b17e9c99 336version 0.4.7:
e07702ba 337
e0db8cfb 338- RealAudio 1.0 (14_4) and 2.0 (28_8) native decoders. Author unknown, code from mplayerhq
124ba583 339 (originally from public domain player for Amiga at http://www.honeypot.net/audio)
e0db8cfb 340- current version now also compiles with older GCC (Fabrice)
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341- 4X multimedia playback system including 4xm file demuxer (Mike
342 Melanson), and 4X video and audio codecs (Michael)
343- Creative YUV (CYUV) decoder (Mike Melanson)
344- FFV1 codec (our very simple lossless intra only codec, compresses much better
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345 than HuffYUV) (Michael)
346- ASV1 (Asus), H.264, Intel indeo3 codecs have been added (various)
347- tiny PNG encoder and decoder, tiny GIF decoder, PAM decoder (PPM with
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348 alpha support), JPEG YUV colorspace support. (Fabrice Bellard)
349- ffplay has been replaced with a newer version which uses SDL (optionally)
e0db8cfb 350 for multiplatform support (Fabrice)
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351- Sorenson Version 3 codec (SVQ3) support has been added (decoding only) - donated
352 by anonymous
353- AMR format has been added (Johannes Carlsson)
e0db8cfb 354- 3GP support has been added (Johannes Carlsson)
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355- VP3 codec has been added (Mike Melanson)
356- more MPEG-1/2 fixes
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357- better multiplatform support, MS Visual Studio fixes (various)
358- AltiVec optimizations (Magnus Damn and others)
e07702ba 359- SH4 processor support has been added (BERO)
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360- new public interfaces (avcodec_get_pix_fmt) (Roman Shaposhnick)
361- VOB streaming support (Brian Foley)
362- better MP3 autodetection (Andriy Rysin)
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363- qpel encoding (Michael)
364- 4mv+b frames encoding finally fixed (Michael)
365- chroma ME (Michael)
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366- 5 comparison functions for ME (Michael)
367- B-frame encoding speedup (Michael)
368- WMV2 codec (unfinished - Michael)
d3d10087 369- user specified diamond size for EPZS (Michael)
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370- Playstation STR playback subsystem, still experimental (Mike and Michael)
371- ASV2 codec (Michael)
372- CLJR decoder (Alex)
d3d10087 373
e0db8cfb 374.. And lots more new enhancements and fixes.
e07702ba 375
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376
377
d3d10087 378version 0.4.6:
739d6efa 379
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380- completely new integer only MPEG audio layer 1/2/3 decoder rewritten
381 from scratch
382- Recoded DCT and motion vector search with gcc (no longer depends on nasm)
383- fix quantization bug in AC3 encoder
384- added PCM codecs and format. Corrected WAV/AVI/ASF PCM issues
385- added prototype ffplay program
386- added GOB header parsing on H.263/H.263+ decoder (Juanjo)
387- bug fix on MCBPC tables of H.263 (Juanjo)
388- bug fix on DC coefficients of H.263 (Juanjo)
389- added Advanced Prediction Mode on H.263/H.263+ decoder (Juanjo)
390- now we can decode H.263 streams found in QuickTime files (Juanjo)
391- now we can decode H.263 streams found in VIVO v1 files(Juanjo)
644d98a4 392- preliminary RTP "friendly" mode for H.263/H.263+ coding. (Juanjo)
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393- added GOB header for H.263/H.263+ coding on RTP mode (Juanjo)
394- now H.263 picture size is returned on the first decoded frame (Juanjo)
7f913a35 395- added first regression tests
e0db8cfb 396- added MPEG-2 TS demuxer
a31e01c5 397- new demux API for libav
6d291820 398- more accurate and faster IDCT (Michael)
e0db8cfb 399- faster and entropy-controlled motion search (Michael)
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400- two pass video encoding (Michael)
401- new video rate control (Michael)
402- added MSMPEG4V1, MSMPEGV2 and WMV1 support (Michael)
403- great performance improvement of video encoders and decoders (Michael)
404- new and faster bit readers and vlc parsers (Michael)
e0db8cfb 405- high quality encoding mode: tries all macroblock/VLC types (Michael)
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406- added DV video decoder
407- preliminary RTP/RTSP support in ffserver and libavformat
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408- H.263+ AIC decoding/encoding support (Juanjo)
409- VCD MPEG-PS mode (Juanjo)
410- PSNR stuff (Juanjo)
411- simple stats output (Juanjo)
412- 16-bit and 15-bit RGB/BGR/GBR support (Bisqwit)
739d6efa 413
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414
415
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416version 0.4.5:
417
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418- some header fixes (Zdenek Kabelac <kabi at informatics.muni.cz>)
419- many MMX optimizations (Nick Kurshev <nickols_k at mail.ru>)
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420- added configure system (actually a small shell script)
421- added MPEG audio layer 1/2/3 decoding using LGPL'ed mpglib by
de6d9b64 422 Michael Hipp (temporary solution - waiting for integer only
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423 decoder)
424- fixed VIDIOCSYNC interrupt
425- added Intel H.263 decoding support ('I263' AVI fourCC)
426- added Real Video 1.0 decoding (needs further testing)
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427- simplified image formats again. Added PGM format (=grey
428 pgm). Renamed old PGM to PGMYUV.
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429- fixed msmpeg4 slice issues (tell me if you still find problems)
430- fixed OpenDivX bugs with newer versions (added VOL header decoding)
431- added support for MPlayer interface
432- added macroblock skip optimization
433- added MJPEG decoder
434- added mmx/mmxext IDCT from libmpeg2
0c1e384c 435- added pgmyuvpipe, ppm, and ppm_pipe formats (original patch by Celer
dd5cf2ad 436 <celer at shell.scrypt.net>)
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437- added pixel format conversion layer (e.g. for MJPEG or PPM)
438- added deinterlacing option
439- MPEG-1/2 fixes
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440- MPEG-4 vol header fixes (Jonathan Marsden <snmjbm at pacbell.net>)
441- ARM optimizations (Lionel Ulmer <lionel.ulmer at free.fr>).
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442- Windows porting of file converter
443- added MJPEG raw format (input/ouput)
444- added JPEG image format support (input/output)
de6d9b64 445
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446
447
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448version 0.4.4:
449
450- fixed some std header definitions (Bjorn Lindgren
dd5cf2ad 451 <bjorn.e.lindgren at telia.com>).
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452- added MPEG demuxer (MPEG-1 and 2 compatible).
453- added ASF demuxer
454- added prototype RM demuxer
455- added AC3 decoding (done with libac3 by Aaron Holtzman)
456- added decoding codec parameter guessing (.e.g. for MPEG, because the
457 header does not include them)
458- fixed header generation in MPEG-1, AVI and ASF muxer: wmplayer can now
459 play them (only tested video)
460- fixed H.263 white bug
461- fixed phase rounding in img resample filter
462- add MMX code for polyphase img resample filter
463- added CPU autodetection
464- added generic title/author/copyright/comment string handling (ASF and RM
465 use them)
de6d9b64 466- added SWF demux to extract MP3 track (not usable yet because no MP3
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467 decoder)
468- added fractional frame rate support
de6d9b64 469- codecs are no longer searched by read_header() (should fix ffserver
e0db8cfb 470 segfault)
de6d9b64 471
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472
473
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474version 0.4.3:
475
dd5cf2ad 476- BGR24 patch (initial patch by Jeroen Vreeken <pe1rxq at amsat.org>)
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477- fixed raw yuv output
478- added motion rounding support in MPEG-4
479- fixed motion bug rounding in MSMPEG4
480- added B-frame handling in video core
481- added full MPEG-1 decoding support
482- added partial (frame only) MPEG-2 support
de6d9b64 483- changed the FOURCC code for H.263 to "U263" to be able to see the
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484 +AVI/H.263 file with the UB Video H.263+ decoder. MPlayer works with
485 this +codec ;) (JuanJo).
486- Halfpel motion estimation after MB type selection (JuanJo)
487- added pgm and .Y.U.V output format
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488- suppressed 'img:' protocol. Simply use: /tmp/test%d.[pgm|Y] as input or
489 output.
490- added pgmpipe I/O format (original patch from Martin Aumueller
dd5cf2ad 491 <lists at reserv.at>, but changed completely since we use a format
e0db8cfb 492 instead of a protocol)
de6d9b64 493
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494
495
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496version 0.4.2:
497
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498- added H.263/MPEG-4/MSMPEG4 decoding support. MPEG-4 decoding support
499 (for OpenDivX) is almost complete: 8x8 MVs and rounding are
de6d9b64 500 missing. MSMPEG4 support is complete.
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501- added prototype MPEG-1 decoder. Only I- and P-frames handled yet (it
502 can decode ffmpeg MPEGs :-)).
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503- added libavcodec API documentation (see apiexample.c).
504- fixed image polyphase bug (the bottom of some images could be
e0db8cfb 505 greenish)
de6d9b64 506- added support for non clipped motion vectors (decoding only)
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507 and image sizes non-multiple of 16
508- added support for AC prediction (decoding only)
509- added file overwrite confirmation (can be disabled with -y)
510- added custom size picture to H.263 using H.263+ (Juanjo)
de6d9b64 511
0ca3e336 512
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513version 0.4.1:
514
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515- added MSMPEG4 (aka DivX) compatible encoder. Changed default codec
516 of AVI and ASF to DIV3.
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517- added -me option to set motion estimation method
518 (default=log). suppressed redundant -hq option.
519- added options -acodec and -vcodec to force a given codec (useful for
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520 AVI for example)
521- fixed -an option
522- improved dct_quantize speed
523- factorized some motion estimation code
de6d9b64 524
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525
526
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527version 0.4.0:
528
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529- removing grab code from ffserver and moved it to ffmpeg. Added
530 multistream support to ffmpeg.
de6d9b64 531- added timeshifting support for live feeds (option ?date=xxx in the
e0db8cfb 532 URL)
de6d9b64 533- added high quality image resize code with polyphase filter (need
56cc85a0 534 mmx/see optimization). Enable multiple image size support in ffserver.
e0db8cfb 535- added multi live feed support in ffserver
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536- suppressed master feature from ffserver (it should be done with an
537 external program which opens the .ffm url and writes it to another
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538 ffserver)
539- added preliminary support for video stream parsing (WAV and AVI half
540 done). Added proper support for audio/video file conversion in
de6d9b64 541 ffmpeg.
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542- added preliminary support for video file sending from ffserver
543- redesigning I/O subsystem: now using URL based input and output
544 (see avio.h)
545- added WAV format support
546- added "tty user interface" to ffmpeg to stop grabbing gracefully
547- added MMX/SSE optimizations to SAD (Sums of Absolutes Differences)
dd5cf2ad 548 (Juan J. Sierralta P. a.k.a. "Juanjo" <juanjo at atmlab.utfsm.cl>)
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549- added MMX DCT from mpeg2_movie 1.5 (Juanjo)
550- added new motion estimation algorithms, log and phods (Juanjo)
551- changed directories: libav for format handling, libavcodec for
552 codecs
de6d9b64 553
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554
555
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556version 0.3.4:
557
e0db8cfb 558- added stereo in MPEG audio encoder
de6d9b64 559
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560
561
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562version 0.3.3:
563
564- added 'high quality' mode which use motion vectors. It can be used in
565 real time at low resolution.
566- fixed rounding problems which caused quality problems at high
e0db8cfb 567 bitrates and large GOP size
de6d9b64 568
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569
570
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571version 0.3.2: small fixes
572
e0db8cfb 573- ASF fixes
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574- put_seek bug fix
575
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576
577
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578version 0.3.1: added avi/divx support
579
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580- added AVI support
581- added MPEG-4 codec compatible with OpenDivX. It is based on the H.263 codec
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582- added sound for flash format (not tested)
583
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584
585
de6d9b64 586version 0.3: initial public release