1 Entries are sorted chronologically from oldest to youngest within each release,
2 releases are sorted from youngest to oldest.
5 - av_basename and av_dirname
6 - adobe publisher authentication in RTMP
9 - ashowinfo audio filter
10 - 24-bit FLAC encoding
12 - deprecated the avconv -vol option. the volume filter is to be used instead.
13 - multi-channel ALAC encoding up to 7.1
14 - TAK demuxer, parser, and decoder
15 - adaptive frame-level multithreading for H.264
19 - metadata (INFO tag) support in WAV muxer
20 - support for building DLLs using MSVC
21 - remove avserver daemon mode
26 - XWD encoder and decoder
27 - Support for fragmentation in the mov/mp4 muxer
28 - ISMV (Smooth Streaming) muxer
29 - CDXL demuxer and decoder
30 - Apple ProRes encoder
31 - Sun Rasterfile Encoder
33 - ID3v2 attached pictures reading and writing
34 - WMA Lossless decoder
36 - RealAudio Lossless decoder
38 - drop support for avconv without libavfilter
39 - add libavresample audio conversion library
40 - audio filters support in libavfilter and avconv
44 - avprobe output is now standard INI or JSON. The old format can still
47 - channelsplit audio filter
48 - RTMPT protocol support
49 - iLBC encoding/decoding via libilbc
50 - Microsoft Screen 1 decoder
52 - audio channel mapping filter
53 - Microsoft ATC Screen decoder
55 - TechSmith Screen Codec 2 decoder
56 - AAC encoding via libfdk-aac
57 - Microsoft Expression Encoder Screen decoder
58 - RTMPS protocol support
59 - RTMPTS protocol support
60 - JPEG 2000 encoding support through OpenJPEG
61 - G.723.1 demuxer and decoder
62 - RTMPE protocol support
63 - RTMPTE protocol support
64 - Canopus Lossless Codec decoder
65 - avconv -shortest option is now per-output file,
66 -pass and -passlogfile are now per-output stream
68 - Microsoft Screen 2 decoder
69 - RTP depacketization of JPEG
70 - Smooth Streaming live segmenter muxer
71 - RTP packetization of JPEG
72 - Opus decoder and encoder using libopus
73 - remove -same_quant, it hasn't worked for years
74 - support for building with MSVC
85 - Automatic thread count based on detection number of (available) CPU cores
86 - Deprecate libpostproc. If desired, the switch --enable-postproc will
87 enable it but it may be removed in a later Libav release.
88 - rv34: frame-level multi-threading
89 - optimized iMDCT transform on x86 using SSE for for mpegaudiodec
95 - Flash Screen Video 2 decoder
96 - ffplay/ffprobe/ffserver renamed to avplay/avprobe/avserver
97 - ffmpeg deprecated, added avconv, which is almost the same for now, except
98 for a few incompatible changes in the options, which will hopefully make them
99 easier to use. The changes are:
100 * The options placement is now strictly enforced! While in theory the
101 options for ffmpeg should be given in [input options] -i INPUT [output
102 options] OUTPUT order, in practice it was possible to give output options
103 before the -i and it mostly worked. Except when it didn't - the behavior was
104 a bit inconsistent. In avconv, it is not possible to mix input and output
105 options. All non-global options are reset after an input or output filename.
106 * All per-file options are now truly per-file - they apply only to the next
107 input or output file and specifying different values for different files
108 will now work properly (notably -ss and -t options).
109 * All per-stream options are now truly per-stream - it is possible to
110 specify which stream(s) should a given option apply to. See the Stream
111 specifiers section in the avconv manual for details.
112 * In ffmpeg some options (like -newvideo/-newaudio/...) are irregular in the
113 sense that they're specified after the output filename instead of before,
114 like all other options. In avconv this irregularity is removed, all options
115 apply to the next input or output file.
116 * -newvideo/-newaudio/-newsubtitle options were removed. Not only were they
117 irregular and highly confusing, they were also redundant. In avconv the -map
118 option will create new streams in the output file and map input streams to
119 them. E.g. avconv -i INPUT -map 0 OUTPUT will create an output stream for
120 each stream in the first input file.
121 * The -map option now has slightly different and more powerful syntax:
122 + Colons (':') are used to separate file index/stream type/stream index
123 instead of dots. Comma (',') is used to separate the sync stream instead
124 of colon.. This is done for consistency with other options.
125 + It's possible to specify stream type. E.g. -map 0:a:2 creates an
126 output stream from the third input audio stream.
127 + Omitting the stream index now maps all the streams of the given type,
128 not just the first. E.g. -map 0:s creates output streams for all the
129 subtitle streams in the first input file.
130 + Since -map can now match multiple streams, negative mappings were
131 introduced. Negative mappings disable some streams from an already
132 defined map. E.g. '-map 0 -map -0:a:1' means 'create output streams for
133 all the stream in the first input file, except for the second audio
135 * There is a new option -c (or -codec) for choosing the decoder/encoder to
136 use, which allows to precisely specify target stream(s) consistently with
137 other options. E.g. -c:v lib264 sets the codec for all video streams, -c:a:0
138 libvorbis sets the codec for the first audio stream and -c copy copies all
139 the streams without reencoding. Old -vcodec/-acodec/-scodec options are now
141 * It is now possible to precisely specify which stream should an AVOption
142 apply to. E.g. -b:v:0 2M sets the bitrate for the first video stream, while
143 -b:a 128k sets the bitrate for all audio streams. Note that the old -ab 128k
144 syntax is deprecated and will stop working soon.
145 * -map_chapters now takes only an input file index and applies to the next
146 output file. This is consistent with how all the other options work.
147 * -map_metadata now takes only an input metadata specifier and applies to
148 the next output file. Output metadata specifier is now part of the option
149 name, similarly to the AVOptions/map/codec feature above.
150 * -metadata can now be used to set metadata on streams and chapters, e.g.
151 -metadata:s:1 language=eng sets the language of the first stream to 'eng'.
152 This made -vlang/-alang/-slang options redundant, so they were removed.
153 * -qscale option now uses stream specifiers and applies to all streams, not
154 just video. I.e. plain -qscale number would now apply to all streams. To get
155 the old behavior, use -qscale:v. Also there is now a shortcut -q for -qscale
156 and -aq is now an alias for -q:a.
157 * -vbsf/-absf/-sbsf options were removed and replaced by a -bsf option which
158 uses stream specifiers. Use -bsf:v/a/s instead of the old options.
159 * -itsscale option now uses stream specifiers, so its argument is only the
161 * -intra option was removed, use -g 0 for the same effect.
162 * -psnr option was removed, use -flags +psnr for the same effect.
163 * -vf option is now an alias to the new -filter option, which uses stream specifiers.
164 * -vframes/-aframes/-dframes options are now aliases to the new -frames option.
165 * -vtag/-atag/-stag options are now aliases to the new -tag option.
167 - Windows Media Image decoder
171 - libcdio-paranoia input device for audio CD grabbing
173 - Apple ProRes decoder
174 - CELT in Ogg demuxing
175 - VC-1 interlaced decoding
176 - lut, lutrgb, and lutyuv filters
179 - Speex encoding via libspeex
180 - 4:2:2 H.264 decoding support
181 - 4:2:2 and 4:4:4 H.264 encoding with libx264
182 - Pulseaudio input device
183 - replacement Indeo 3 decoder
184 - TLS/SSL and HTTPS protocol support
185 - AVOptions API rewritten and documented
186 - most of CODEC_FLAG2_*, some CODEC_FLAG_* and many codec-specific fields in
187 AVCodecContext deprecated. Codec private options should be used instead.
188 - Properly working defaults in libx264 wrapper, support for native presets.
189 - Encrypted OMA files support
190 - Discworld II BMV decoding support
192 - OS X Video Decoder Acceleration (VDA) support
193 - CRI ADX audio format muxer and demuxer
194 - Playstation Portable PMP format demuxer
195 - PCM format support in OMA demuxer
197 - Dxtory capture format decoder
198 - v410 QuickTime uncompressed 4:4:4 10-bit encoder and decoder
200 - Simple segmenting muxer
207 - E-AC-3 audio encoder
208 - ac3enc: add channel coupling support
209 - floating-point sample format support for (E-)AC-3, DCA, AAC, Vorbis decoders
210 - H.264/MPEG frame-level multithreading
211 - av_metadata_* functions renamed to av_dict_* and moved to libavutil
212 - 4:4:4 H.264 decoding support
213 - 10-bit H.264 optimizations for x86
214 - bump libswscale for recently reported ABI break
219 - VP8 frame-level multithreading
220 - NEON optimizations for VP8
221 - removed a lot of deprecated API cruft
222 - FFT and IMDCT optimizations for AVX (Sandy Bridge) processors
224 - SMPTE 302M AES3 audio decoder
225 - ffmpeg no longer quits after the 'q' key is pressed; use 'ctrl+c' instead
226 - 9bit and 10bit per sample support in the H.264 decoder
231 - WebM support in Matroska de/muxer
232 - low overhead Ogg muxing
234 - VP8 de/encoding via libvpx
235 - Demuxer for On2's IVF format
236 - Pictor/PC Paint decoder
238 - libfaad2 wrapper removed
239 - DTS-ES extension (XCh) decoding support
241 - RTSP tunneling over HTTP
242 - RTP depacketization of SVQ3
243 - -strict inofficial replaced by -strict unofficial
244 - ffplay -exitonkeydown and -exitonmousedown options added
245 - native GSM / GSM MS decoder
246 - RTP depacketization of QDM2
247 - ANSI/ASCII art playback system
248 - Lego Mindstorms RSO de/muxer
249 - SubRip subtitle file muxer and demuxer
250 - Chinese AVS encoding via libxavs
251 - ffprobe -show_packets option added
252 - RTP packetization of Theora and Vorbis
253 - RTP depacketization of MP4A-LATM
254 - RTP packetization and depacketization of VP8
256 - Apple HTTP Live Streaming demuxer
259 - G.722 ADPCM audio encoder/decoder
262 - frei0r wrapper filter
263 - change crop filter syntax to width:height:x:y
264 - make the crop filter accept parametric expressions
265 - make ffprobe accept AVFormatContext options
268 - Demuxer for Leitch/Harris' VR native stream format (LXF)
269 - RTP depacketization of the X-QT QuickTime format
270 - SAP (Session Announcement Protocol, RFC 2974) muxer and demuxer
272 - ffmpeg -crop* options removed
273 - transpose filter added
274 - ffmpeg -force_key_frames option added
275 - demuxer for receiving raw rtp:// URLs without an SDP description
276 - single stream LATM/LOAS decoder
277 - setpts filter added
278 - Win64 support for optimized x86 assembly functions
279 - MJPEG/AVI1 to JPEG/JFIF bitstream filter
280 - ASS subtitle encoder and decoder
281 - IEC 61937 encapsulation for E-AC-3, TrueHD, DTS-HD (for HDMI passthrough)
282 - overlay filter added
283 - rename aspect filter to setdar, and pixelaspect to setsar
285 - Mobotix .mxg demuxer
286 - frei0r source added
287 - hqdn3d filter added
288 - RTP depacketization of QCELP
290 - gradfun filter added
292 - replace the ocv_smooth filter with a more generic ocv filter
293 - Windows Televison (WTV) demuxer
294 - FFmpeg metadata format muxer and demuxer
295 - SubRip (srt) subtitle decoder
296 - floating-point AC-3 encoder added
298 - ffmpeg -copytb option added
300 - Wing Commander IV movies decoder added
302 - Bink version 'b' audio and video decoder
303 - Bitmap Brothers JV playback system
304 - Apple HTTP Live Streaming protocol handler
305 - sndio support for playback and record
306 - Linux framebuffer input device added
307 - Chronomaster DFA decoder
308 - Mobotix MxPEG decoder
309 - AAC encoding via libvo-aacenc
310 - AMR-WB encoding via libvo-amrwbenc
312 - fieldorder video filter added
317 - PB-frame decoding for H.263
318 - deprecated vhook subsystem removed
319 - deprecated old scaler removed
321 - Alpha channel scaler
323 - RTP packetization of H.263
324 - RTP packetization of AMR
325 - RTP depacketization of Vorbis
326 - CorePNG decoding support
327 - Cook multichannel decoding support
328 - introduced avlanguage helpers in libavformat
329 - 8088flex TMV demuxer and decoder
330 - per-stream language-tags extraction in asfdec
331 - V210 decoder and encoder
332 - remaining GPL parts in AC-3 decoder converted to LGPL
334 - SoX native format muxer and demuxer
335 - AMR-NB decoding/encoding, AMR-WB decoding via OpenCORE libraries
337 - Electronic Arts Madcow decoder
338 - DivX (XSUB) subtitle encoder
339 - nonfree libamr support for AMR-NB/WB decoding/encoding removed
340 - experimental AAC encoder
341 - RTP depacketization of ASF and RTSP from WMS servers
342 - RTMP support in libavformat
343 - noX handling for OPT_BOOL X options
345 - IEC-61937 compatible Muxer
347 - Bluray (PGS) subtitle decoder
348 - LPCM support in MPEG-TS (HDMV RID as found on Blu-ray disks)
350 - Core Audio Format demuxer
352 - MD STUDIO audio demuxer
353 - RF64 support in WAV demuxer
354 - MPEG-4 Audio Lossless Coding (ALS) decoder
355 - -formats option split into -formats, -codecs, -bsfs, and -protocols
357 - CDG demuxer and decoder
359 - Auravision Aura 1 and 2 decoders
360 - Deluxe Paint Animation playback system
362 - Adobe Filmstrip muxer and demuxer
363 - RTP depacketization of H.263
364 - Bink demuxer and audio/video decoders
365 - enable symbol versioning by default for linkers that support it
366 - IFF PBM/ILBM bitmap decoder
369 - RTP depacketization of AMR
375 - Kega Game Video (KGV1) decoder
376 - VorbisComment writing for FLAC, Ogg FLAC and Ogg Speex files
377 - RTP depacketization of Theora
378 - HTTP Digest authentication
379 - RTMP/RTMPT/RTMPS/RTMPE/RTMPTE protocol support via librtmp
380 - Psygnosis YOP demuxer and video decoder
381 - spectral extension support in the E-AC-3 decoder
382 - unsharp video filter
383 - RTP hinting in the mov/3gp/mp4 muxer
384 - Dirac in Ogg demuxing
385 - seek to keyframes in Ogg
386 - 4:2:2 and 4:4:4 Theora decoding
387 - 35% faster VP3/Theora decoding
388 - faster AAC decoding
389 - faster H.264 decoding
390 - RealAudio 1.0 (14.4K) encoder
395 - DV50 AKA DVCPRO50 encoder, decoder, muxer and demuxer
396 - TechSmith Camtasia (TSCC) video decoder
397 - IBM Ultimotion (ULTI) video decoder
398 - Sierra Online audio file demuxer and decoder
399 - Apple QuickDraw (qdrw) video decoder
400 - Creative ADPCM audio decoder (16 bits as well as 8 bits schemes)
401 - Electronic Arts Multimedia (WVE/UV2/etc.) file demuxer
402 - Miro VideoXL (VIXL) video decoder
403 - H.261 video encoder
405 - Nullsoft Video (NSV) file demuxer
406 - Shorten audio decoder
408 - Apple Lossless Audio Codec (ALAC) decoder
409 - Winnov WNV1 video decoder
410 - Autodesk Animator Studio Codec (AASC) decoder
411 - Indeo 2 video decoder
412 - Fraps FPS1 video decoder
413 - Snow video encoder/decoder
414 - Sonic audio encoder/decoder
415 - Vorbis audio decoder
416 - Macromedia ADPCM decoder
417 - Duck TrueMotion 2 video decoder
418 - support for decoding FLX and DTA extensions in FLIC files
419 - H.264 custom quantization matrices support
420 - ffserver fixed, it should now be usable again
422 - Real Cooker audio decoder
423 - TrueSpeech audio decoder
424 - WMA2 audio decoder fixed, now all files should play correctly
425 - RealAudio 14.4 and 28.8 decoders fixed
427 - build system improvements
428 - tabs and trailing whitespace removed from the codebase
429 - CamStudio video decoder
430 - AIFF/AIFF-C audio format, encoding and decoding
431 - ADTS AAC file reading and writing
432 - Creative VOC file reading and writing
433 - American Laser Games multimedia (*.mm) playback system
434 - Zip Motion Blocks Video decoder
435 - improved Theora/VP3 decoder
436 - True Audio (TTA) decoder
437 - AVS demuxer and video decoder
439 - Smacker demuxer and decoder
440 - NuppelVideo/MythTV demuxer and RTjpeg decoder
442 - MPEG-2 intra VLC support
443 - MPEG-2 4:2:2 encoder
444 - Flash Screen Video decoder
446 - Chinese AVS decoder
449 - VC-1/WMV3/WMV9 video decoder
452 - VMware video decoder
455 - WavPack lossless audio decoder
456 - Targa (.TGA) picture decoder
457 - Vorbis audio encoder
458 - Delphine Software .cin demuxer/audio and video decoder
459 - Tiertex .seq demuxer/video decoder
461 - TIFF picture encoder and decoder
462 - GIF picture decoder
463 - Intel Music Coder decoder
464 - Zip Motion Blocks Video encoder
466 - Flash Screen Video encoder
467 - Theora encoding via libtheora
470 - GSM-MS encoder and decoder
472 - DXA demuxer and decoder
474 - Gamecube movie (.THP) playback system
475 - Blackfin optimizations
476 - Interplay C93 demuxer and video decoder
477 - Bethsoft VID demuxer and video decoder
480 - V.Flash PTX decoder
481 - RoQ muxer, RoQ audio encoder
482 - Renderware TXD demuxer and decoder
483 - extern C declarations for C++ removed from headers
484 - sws_flags command line option
488 - OS/2 support removed and restored again
491 - additional SPARC (VIS) optimizations
493 - slice-based parallel H.264 decoding
494 - Monkey's Audio demuxer and decoder
495 - AMV audio and video decoder
497 - H.264 PAFF decoding
498 - Nellymoser ASAO decoder
499 - Beam Software SIFF demuxer and decoder
500 - libvorbis Vorbis decoding removed in favor of native decoder
501 - IntraX8 (J-Frame) subdecoder for WMV2 and VC-1
502 - Ogg (Theora, Vorbis and FLAC) muxer
503 - The "device" muxers and demuxers are now in a new libavdevice library
504 - PC Paintbrush PCX decoder
505 - Sun Rasterfile decoder
506 - TechnoTrend PVA demuxer
507 - Linux Media Labs MPEG-4 (LMLM4) demuxer
508 - AVM2 (Flash 9) SWF muxer
509 - QT variant of IMA ADPCM encoder
511 - iPod/iPhone compatible mp4 muxer
513 - MSN TCP Webcam stream demuxer
514 - RL2 demuxer / decoder
517 - non-recursive Makefiles
519 - MAXIS EA XA (.xa) demuxer / decoder
523 - Electronic Arts CMV decoder
524 - Motion Pixels Video decoder
525 - Motion Pixels MVI demuxer
526 - removed animated GIF decoder/demuxer
527 - D-Cinema audio muxer
528 - Electronic Arts TGV decoder
529 - Apple Lossless Audio Codec (ALAC) encoder
531 - floating point PCM encoder/decoder
533 - DV100 AKA DVCPRO HD decoder and demuxer
534 - E-AC-3 support added to AC-3 decoder
535 - Nellymoser ASAO encoder
536 - ASS and SSA demuxer and muxer
537 - liba52 wrapper removed
538 - SVQ3 watermark decoding support
539 - Speex decoding via libspeex
540 - Electronic Arts TGQ decoder
542 - QCELP / PureVoice decoder
544 - hybrid WavPack support
545 - R3D REDCODE demuxer
546 - ALSA support for playback and record
547 - Electronic Arts TQI decoder
548 - OpenJPEG based JPEG 2000 decoder
549 - NC (NC4600) camera file demuxer
550 - Gopher client support
552 - generic metadata API
557 - DV encoder, DV muxer
558 - Microsoft RLE video decoder
559 - Microsoft Video-1 decoder
560 - Apple Animation (RLE) decoder
561 - Apple Graphics (SMC) decoder
562 - Apple Video (RPZA) decoder
564 - Sega FILM (CPK) file demuxer
565 - Westwood multimedia support (VQA & AUD files)
566 - Id Quake II CIN playback support
568 - FLIC playback support
569 - RealVideo 2.0 (RV20) decoder
570 - Duck TrueMotion v1 (DUCK) video decoder
571 - Sierra VMD demuxer and video decoder
572 - MSZH and ZLIB decoder support
576 - rate distortion optimal cbp support
577 - rate distorted optimal ac prediction for MPEG-4
578 - rate distorted optimal lambda->qp support
579 - AAC encoding with libfaac
580 - Sunplus JPEG codec (SP5X) support
581 - use Lagrange multipler instead of QP for ratecontrol
582 - Theora/VP3 decoding support
583 - XA and ADX ADPCM codecs
584 - export MPEG-2 active display area / pan scan
585 - Add support for configuring with IBM XLC
586 - floating point AAN DCT
587 - initial support for zygo video (not complete)
589 - new audio/video parser API
591 - av_read_frame() and av_seek_frame() support
592 - missing last frame fixes
593 - seek by mouse in ffplay
594 - noise reduction of DCT coefficients
595 - H.263 OBMC & 4MV support
596 - H.263 alternative inter vlc support
598 - H.263 slice structured mode
599 - interlaced DCT support for MPEG-2 encoding
600 - stuffing to stay above min_bitrate
601 - MB type & QP visualization
602 - frame stepping for ffplay
603 - interlaced motion estimation
604 - alternate scantable support
605 - SVCD scan offset support
608 - quantizer noise shaping
609 - G.726 ADPCM audio codec
611 - multithreaded/SMP motion estimation
612 - multithreaded/SMP encoding for MPEG-1/MPEG-2/MPEG-4/H.263
613 - multithreaded/SMP decoding for MPEG-2
615 - Metrowerks CodeWarrior suppport
616 - H.263+ custom pcf support
617 - nicer output for 'ffmpeg -formats'
619 - SGI image format, encoding and decoding
620 - H.264 loop filter support
621 - H.264 CABAC support
622 - nicer looking arrows for the motion vector visualization
623 - improved VCD support
624 - audio timestamp drift compensation
625 - MPEG-2 YUV 422/444 support
626 - polyphase kaiser windowed sinc and blackman nuttall windowed sinc audio resample
627 - better image scaling
629 - correctly interleave packets during encoding
630 - VIS optimized motion compensation
631 - intra_dc_precision>0 encoding support
632 - support reuse of motion vectors/MB types/field select values of the source video
633 - more accurate deblock filter
635 - many optimizations and bugfixes
636 - FunCom ISS audio file demuxer and according ADPCM decoding
641 - MPEG-2 video encoding (Michael)
642 - Id RoQ playback subsystem (Mike Melanson and Tim Ferguson)
643 - Wing Commander III Movie (.mve) file playback subsystem (Mike Melanson
645 - Xan DPCM audio decoder (Mario Brito)
646 - Interplay MVE playback subsystem (Mike Melanson)
647 - Duck DK3 and DK4 ADPCM audio decoders (Mike Melanson)
652 - RealAudio 1.0 (14_4) and 2.0 (28_8) native decoders. Author unknown, code from mplayerhq
653 (originally from public domain player for Amiga at http://www.honeypot.net/audio)
654 - current version now also compiles with older GCC (Fabrice)
655 - 4X multimedia playback system including 4xm file demuxer (Mike
656 Melanson), and 4X video and audio codecs (Michael)
657 - Creative YUV (CYUV) decoder (Mike Melanson)
658 - FFV1 codec (our very simple lossless intra only codec, compresses much better
659 than HuffYUV) (Michael)
660 - ASV1 (Asus), H.264, Intel indeo3 codecs have been added (various)
661 - tiny PNG encoder and decoder, tiny GIF decoder, PAM decoder (PPM with
662 alpha support), JPEG YUV colorspace support. (Fabrice Bellard)
663 - ffplay has been replaced with a newer version which uses SDL (optionally)
664 for multiplatform support (Fabrice)
665 - Sorenson Version 3 codec (SVQ3) support has been added (decoding only) - donated
667 - AMR format has been added (Johannes Carlsson)
668 - 3GP support has been added (Johannes Carlsson)
669 - VP3 codec has been added (Mike Melanson)
670 - more MPEG-1/2 fixes
671 - better multiplatform support, MS Visual Studio fixes (various)
672 - AltiVec optimizations (Magnus Damn and others)
673 - SH4 processor support has been added (BERO)
674 - new public interfaces (avcodec_get_pix_fmt) (Roman Shaposhnick)
675 - VOB streaming support (Brian Foley)
676 - better MP3 autodetection (Andriy Rysin)
677 - qpel encoding (Michael)
678 - 4mv+b frames encoding finally fixed (Michael)
679 - chroma ME (Michael)
680 - 5 comparison functions for ME (Michael)
681 - B-frame encoding speedup (Michael)
682 - WMV2 codec (unfinished - Michael)
683 - user specified diamond size for EPZS (Michael)
684 - Playstation STR playback subsystem, still experimental (Mike and Michael)
685 - ASV2 codec (Michael)
686 - CLJR decoder (Alex)
688 .. And lots more new enhancements and fixes.
693 - completely new integer only MPEG audio layer 1/2/3 decoder rewritten
695 - Recoded DCT and motion vector search with gcc (no longer depends on nasm)
696 - fix quantization bug in AC3 encoder
697 - added PCM codecs and format. Corrected WAV/AVI/ASF PCM issues
698 - added prototype ffplay program
699 - added GOB header parsing on H.263/H.263+ decoder (Juanjo)
700 - bug fix on MCBPC tables of H.263 (Juanjo)
701 - bug fix on DC coefficients of H.263 (Juanjo)
702 - added Advanced Prediction Mode on H.263/H.263+ decoder (Juanjo)
703 - now we can decode H.263 streams found in QuickTime files (Juanjo)
704 - now we can decode H.263 streams found in VIVO v1 files(Juanjo)
705 - preliminary RTP "friendly" mode for H.263/H.263+ coding. (Juanjo)
706 - added GOB header for H.263/H.263+ coding on RTP mode (Juanjo)
707 - now H.263 picture size is returned on the first decoded frame (Juanjo)
708 - added first regression tests
709 - added MPEG-2 TS demuxer
710 - new demux API for libav
711 - more accurate and faster IDCT (Michael)
712 - faster and entropy-controlled motion search (Michael)
713 - two pass video encoding (Michael)
714 - new video rate control (Michael)
715 - added MSMPEG4V1, MSMPEGV2 and WMV1 support (Michael)
716 - great performance improvement of video encoders and decoders (Michael)
717 - new and faster bit readers and vlc parsers (Michael)
718 - high quality encoding mode: tries all macroblock/VLC types (Michael)
719 - added DV video decoder
720 - preliminary RTP/RTSP support in ffserver and libavformat
721 - H.263+ AIC decoding/encoding support (Juanjo)
722 - VCD MPEG-PS mode (Juanjo)
723 - PSNR stuff (Juanjo)
724 - simple stats output (Juanjo)
725 - 16-bit and 15-bit RGB/BGR/GBR support (Bisqwit)
730 - some header fixes (Zdenek Kabelac <kabi at informatics.muni.cz>)
731 - many MMX optimizations (Nick Kurshev <nickols_k at mail.ru>)
732 - added configure system (actually a small shell script)
733 - added MPEG audio layer 1/2/3 decoding using LGPL'ed mpglib by
734 Michael Hipp (temporary solution - waiting for integer only
736 - fixed VIDIOCSYNC interrupt
737 - added Intel H.263 decoding support ('I263' AVI fourCC)
738 - added Real Video 1.0 decoding (needs further testing)
739 - simplified image formats again. Added PGM format (=grey
740 pgm). Renamed old PGM to PGMYUV.
741 - fixed msmpeg4 slice issues (tell me if you still find problems)
742 - fixed OpenDivX bugs with newer versions (added VOL header decoding)
743 - added support for MPlayer interface
744 - added macroblock skip optimization
745 - added MJPEG decoder
746 - added mmx/mmxext IDCT from libmpeg2
747 - added pgmyuvpipe, ppm, and ppm_pipe formats (original patch by Celer
748 <celer at shell.scrypt.net>)
749 - added pixel format conversion layer (e.g. for MJPEG or PPM)
750 - added deinterlacing option
752 - MPEG-4 vol header fixes (Jonathan Marsden <snmjbm at pacbell.net>)
753 - ARM optimizations (Lionel Ulmer <lionel.ulmer at free.fr>).
754 - Windows porting of file converter
755 - added MJPEG raw format (input/ouput)
756 - added JPEG image format support (input/output)
761 - fixed some std header definitions (Bjorn Lindgren
762 <bjorn.e.lindgren at telia.com>).
763 - added MPEG demuxer (MPEG-1 and 2 compatible).
765 - added prototype RM demuxer
766 - added AC3 decoding (done with libac3 by Aaron Holtzman)
767 - added decoding codec parameter guessing (.e.g. for MPEG, because the
768 header does not include them)
769 - fixed header generation in MPEG-1, AVI and ASF muxer: wmplayer can now
770 play them (only tested video)
771 - fixed H.263 white bug
772 - fixed phase rounding in img resample filter
773 - add MMX code for polyphase img resample filter
774 - added CPU autodetection
775 - added generic title/author/copyright/comment string handling (ASF and RM
777 - added SWF demux to extract MP3 track (not usable yet because no MP3
779 - added fractional frame rate support
780 - codecs are no longer searched by read_header() (should fix ffserver
786 - BGR24 patch (initial patch by Jeroen Vreeken <pe1rxq at amsat.org>)
787 - fixed raw yuv output
788 - added motion rounding support in MPEG-4
789 - fixed motion bug rounding in MSMPEG4
790 - added B-frame handling in video core
791 - added full MPEG-1 decoding support
792 - added partial (frame only) MPEG-2 support
793 - changed the FOURCC code for H.263 to "U263" to be able to see the
794 +AVI/H.263 file with the UB Video H.263+ decoder. MPlayer works with
795 this +codec ;) (JuanJo).
796 - Halfpel motion estimation after MB type selection (JuanJo)
797 - added pgm and .Y.U.V output format
798 - suppressed 'img:' protocol. Simply use: /tmp/test%d.[pgm|Y] as input or
800 - added pgmpipe I/O format (original patch from Martin Aumueller
801 <lists at reserv.at>, but changed completely since we use a format
802 instead of a protocol)
807 - added H.263/MPEG-4/MSMPEG4 decoding support. MPEG-4 decoding support
808 (for OpenDivX) is almost complete: 8x8 MVs and rounding are
809 missing. MSMPEG4 support is complete.
810 - added prototype MPEG-1 decoder. Only I- and P-frames handled yet (it
811 can decode ffmpeg MPEGs :-)).
812 - added libavcodec API documentation (see apiexample.c).
813 - fixed image polyphase bug (the bottom of some images could be
815 - added support for non clipped motion vectors (decoding only)
816 and image sizes non-multiple of 16
817 - added support for AC prediction (decoding only)
818 - added file overwrite confirmation (can be disabled with -y)
819 - added custom size picture to H.263 using H.263+ (Juanjo)
824 - added MSMPEG4 (aka DivX) compatible encoder. Changed default codec
825 of AVI and ASF to DIV3.
826 - added -me option to set motion estimation method
827 (default=log). suppressed redundant -hq option.
828 - added options -acodec and -vcodec to force a given codec (useful for
831 - improved dct_quantize speed
832 - factorized some motion estimation code
837 - removing grab code from ffserver and moved it to ffmpeg. Added
838 multistream support to ffmpeg.
839 - added timeshifting support for live feeds (option ?date=xxx in the
841 - added high quality image resize code with polyphase filter (need
842 mmx/see optimization). Enable multiple image size support in ffserver.
843 - added multi live feed support in ffserver
844 - suppressed master feature from ffserver (it should be done with an
845 external program which opens the .ffm url and writes it to another
847 - added preliminary support for video stream parsing (WAV and AVI half
848 done). Added proper support for audio/video file conversion in
850 - added preliminary support for video file sending from ffserver
851 - redesigning I/O subsystem: now using URL based input and output
853 - added WAV format support
854 - added "tty user interface" to ffmpeg to stop grabbing gracefully
855 - added MMX/SSE optimizations to SAD (Sums of Absolutes Differences)
856 (Juan J. Sierralta P. a.k.a. "Juanjo" <juanjo at atmlab.utfsm.cl>)
857 - added MMX DCT from mpeg2_movie 1.5 (Juanjo)
858 - added new motion estimation algorithms, log and phods (Juanjo)
859 - changed directories: libav for format handling, libavcodec for
865 - added stereo in MPEG audio encoder
870 - added 'high quality' mode which use motion vectors. It can be used in
871 real time at low resolution.
872 - fixed rounding problems which caused quality problems at high
873 bitrates and large GOP size
876 version 0.3.2: small fixes
882 version 0.3.1: added avi/divx support
885 - added MPEG-4 codec compatible with OpenDivX. It is based on the H.263 codec
886 - added sound for flash format (not tested)
889 version 0.3: initial public release