1 Entries are sorted chronologically from oldest to youngest within each release,
2 releases are sorted from youngest to oldest.
5 - ashowinfo audio filter
8 - deprecated the avconv -vol option. the volume filter is to be used instead.
9 - multi-channel ALAC encoding up to 7.1
13 - metadata (INFO tag) support in WAV muxer
14 - support for building DLLs using MSVC
15 - remove avserver daemon mode
20 - XWD encoder and decoder
21 - Support for fragmentation in the mov/mp4 muxer
22 - ISMV (Smooth Streaming) muxer
23 - CDXL demuxer and decoder
24 - Apple ProRes encoder
25 - Sun Rasterfile Encoder
27 - ID3v2 attached pictures reading and writing
28 - WMA Lossless decoder
30 - RealAudio Lossless decoder
32 - drop support for avconv without libavfilter
33 - add libavresample audio conversion library
34 - audio filters support in libavfilter and avconv
38 - avprobe output is now standard INI or JSON. The old format can still
41 - channelsplit audio filter
42 - RTMPT protocol support
43 - iLBC encoding/decoding via libilbc
44 - Microsoft Screen 1 decoder
46 - audio channel mapping filter
47 - Microsoft ATC Screen decoder
49 - TechSmith Screen Codec 2 decoder
50 - AAC encoding via libfdk-aac
51 - Microsoft Expression Encoder Screen decoder
52 - RTMPS protocol support
53 - RTMPTS protocol support
54 - JPEG 2000 encoding support through OpenJPEG
55 - G.723.1 demuxer and decoder
56 - RTMPE protocol support
57 - RTMPTE protocol support
58 - Canopus Lossless Codec decoder
59 - avconv -shortest option is now per-output file,
60 -pass and -passlogfile are now per-output stream
62 - Microsoft Screen 2 decoder
63 - RTP depacketization of JPEG
64 - Smooth Streaming live segmenter muxer
65 - RTP packetization of JPEG
66 - Opus decoder and encoder using libopus
67 - remove -same_quant, it hasn't worked for years
68 - support for building with MSVC
79 - Automatic thread count based on detection number of (available) CPU cores
80 - Deprecate libpostproc. If desired, the switch --enable-postproc will
81 enable it but it may be removed in a later Libav release.
82 - rv34: frame-level multi-threading
83 - optimized iMDCT transform on x86 using SSE for for mpegaudiodec
89 - Flash Screen Video 2 decoder
90 - ffplay/ffprobe/ffserver renamed to avplay/avprobe/avserver
91 - ffmpeg deprecated, added avconv, which is almost the same for now, except
92 for a few incompatible changes in the options, which will hopefully make them
93 easier to use. The changes are:
94 * The options placement is now strictly enforced! While in theory the
95 options for ffmpeg should be given in [input options] -i INPUT [output
96 options] OUTPUT order, in practice it was possible to give output options
97 before the -i and it mostly worked. Except when it didn't - the behavior was
98 a bit inconsistent. In avconv, it is not possible to mix input and output
99 options. All non-global options are reset after an input or output filename.
100 * All per-file options are now truly per-file - they apply only to the next
101 input or output file and specifying different values for different files
102 will now work properly (notably -ss and -t options).
103 * All per-stream options are now truly per-stream - it is possible to
104 specify which stream(s) should a given option apply to. See the Stream
105 specifiers section in the avconv manual for details.
106 * In ffmpeg some options (like -newvideo/-newaudio/...) are irregular in the
107 sense that they're specified after the output filename instead of before,
108 like all other options. In avconv this irregularity is removed, all options
109 apply to the next input or output file.
110 * -newvideo/-newaudio/-newsubtitle options were removed. Not only were they
111 irregular and highly confusing, they were also redundant. In avconv the -map
112 option will create new streams in the output file and map input streams to
113 them. E.g. avconv -i INPUT -map 0 OUTPUT will create an output stream for
114 each stream in the first input file.
115 * The -map option now has slightly different and more powerful syntax:
116 + Colons (':') are used to separate file index/stream type/stream index
117 instead of dots. Comma (',') is used to separate the sync stream instead
118 of colon.. This is done for consistency with other options.
119 + It's possible to specify stream type. E.g. -map 0:a:2 creates an
120 output stream from the third input audio stream.
121 + Omitting the stream index now maps all the streams of the given type,
122 not just the first. E.g. -map 0:s creates output streams for all the
123 subtitle streams in the first input file.
124 + Since -map can now match multiple streams, negative mappings were
125 introduced. Negative mappings disable some streams from an already
126 defined map. E.g. '-map 0 -map -0:a:1' means 'create output streams for
127 all the stream in the first input file, except for the second audio
129 * There is a new option -c (or -codec) for choosing the decoder/encoder to
130 use, which allows to precisely specify target stream(s) consistently with
131 other options. E.g. -c:v lib264 sets the codec for all video streams, -c:a:0
132 libvorbis sets the codec for the first audio stream and -c copy copies all
133 the streams without reencoding. Old -vcodec/-acodec/-scodec options are now
135 * It is now possible to precisely specify which stream should an AVOption
136 apply to. E.g. -b:v:0 2M sets the bitrate for the first video stream, while
137 -b:a 128k sets the bitrate for all audio streams. Note that the old -ab 128k
138 syntax is deprecated and will stop working soon.
139 * -map_chapters now takes only an input file index and applies to the next
140 output file. This is consistent with how all the other options work.
141 * -map_metadata now takes only an input metadata specifier and applies to
142 the next output file. Output metadata specifier is now part of the option
143 name, similarly to the AVOptions/map/codec feature above.
144 * -metadata can now be used to set metadata on streams and chapters, e.g.
145 -metadata:s:1 language=eng sets the language of the first stream to 'eng'.
146 This made -vlang/-alang/-slang options redundant, so they were removed.
147 * -qscale option now uses stream specifiers and applies to all streams, not
148 just video. I.e. plain -qscale number would now apply to all streams. To get
149 the old behavior, use -qscale:v. Also there is now a shortcut -q for -qscale
150 and -aq is now an alias for -q:a.
151 * -vbsf/-absf/-sbsf options were removed and replaced by a -bsf option which
152 uses stream specifiers. Use -bsf:v/a/s instead of the old options.
153 * -itsscale option now uses stream specifiers, so its argument is only the
155 * -intra option was removed, use -g 0 for the same effect.
156 * -psnr option was removed, use -flags +psnr for the same effect.
157 * -vf option is now an alias to the new -filter option, which uses stream specifiers.
158 * -vframes/-aframes/-dframes options are now aliases to the new -frames option.
159 * -vtag/-atag/-stag options are now aliases to the new -tag option.
161 - Windows Media Image decoder
165 - libcdio-paranoia input device for audio CD grabbing
167 - Apple ProRes decoder
168 - CELT in Ogg demuxing
169 - VC-1 interlaced decoding
170 - lut, lutrgb, and lutyuv filters
173 - Speex encoding via libspeex
174 - 4:2:2 H.264 decoding support
175 - 4:2:2 and 4:4:4 H.264 encoding with libx264
176 - Pulseaudio input device
177 - replacement Indeo 3 decoder
178 - TLS/SSL and HTTPS protocol support
179 - AVOptions API rewritten and documented
180 - most of CODEC_FLAG2_*, some CODEC_FLAG_* and many codec-specific fields in
181 AVCodecContext deprecated. Codec private options should be used instead.
182 - Properly working defaults in libx264 wrapper, support for native presets.
183 - Encrypted OMA files support
184 - Discworld II BMV decoding support
186 - OS X Video Decoder Acceleration (VDA) support
187 - CRI ADX audio format muxer and demuxer
188 - Playstation Portable PMP format demuxer
189 - PCM format support in OMA demuxer
191 - Dxtory capture format decoder
192 - v410 QuickTime uncompressed 4:4:4 10-bit encoder and decoder
194 - Simple segmenting muxer
201 - E-AC-3 audio encoder
202 - ac3enc: add channel coupling support
203 - floating-point sample format support for (E-)AC-3, DCA, AAC, Vorbis decoders
204 - H.264/MPEG frame-level multithreading
205 - av_metadata_* functions renamed to av_dict_* and moved to libavutil
206 - 4:4:4 H.264 decoding support
207 - 10-bit H.264 optimizations for x86
208 - bump libswscale for recently reported ABI break
213 - VP8 frame-level multithreading
214 - NEON optimizations for VP8
215 - removed a lot of deprecated API cruft
216 - FFT and IMDCT optimizations for AVX (Sandy Bridge) processors
218 - SMPTE 302M AES3 audio decoder
219 - ffmpeg no longer quits after the 'q' key is pressed; use 'ctrl+c' instead
220 - 9bit and 10bit per sample support in the H.264 decoder
225 - WebM support in Matroska de/muxer
226 - low overhead Ogg muxing
228 - VP8 de/encoding via libvpx
229 - Demuxer for On2's IVF format
230 - Pictor/PC Paint decoder
232 - libfaad2 wrapper removed
233 - DTS-ES extension (XCh) decoding support
235 - RTSP tunneling over HTTP
236 - RTP depacketization of SVQ3
237 - -strict inofficial replaced by -strict unofficial
238 - ffplay -exitonkeydown and -exitonmousedown options added
239 - native GSM / GSM MS decoder
240 - RTP depacketization of QDM2
241 - ANSI/ASCII art playback system
242 - Lego Mindstorms RSO de/muxer
243 - SubRip subtitle file muxer and demuxer
244 - Chinese AVS encoding via libxavs
245 - ffprobe -show_packets option added
246 - RTP packetization of Theora and Vorbis
247 - RTP depacketization of MP4A-LATM
248 - RTP packetization and depacketization of VP8
250 - Apple HTTP Live Streaming demuxer
253 - G.722 ADPCM audio encoder/decoder
256 - frei0r wrapper filter
257 - change crop filter syntax to width:height:x:y
258 - make the crop filter accept parametric expressions
259 - make ffprobe accept AVFormatContext options
262 - Demuxer for Leitch/Harris' VR native stream format (LXF)
263 - RTP depacketization of the X-QT QuickTime format
264 - SAP (Session Announcement Protocol, RFC 2974) muxer and demuxer
266 - ffmpeg -crop* options removed
267 - transpose filter added
268 - ffmpeg -force_key_frames option added
269 - demuxer for receiving raw rtp:// URLs without an SDP description
270 - single stream LATM/LOAS decoder
271 - setpts filter added
272 - Win64 support for optimized x86 assembly functions
273 - MJPEG/AVI1 to JPEG/JFIF bitstream filter
274 - ASS subtitle encoder and decoder
275 - IEC 61937 encapsulation for E-AC-3, TrueHD, DTS-HD (for HDMI passthrough)
276 - overlay filter added
277 - rename aspect filter to setdar, and pixelaspect to setsar
279 - Mobotix .mxg demuxer
280 - frei0r source added
281 - hqdn3d filter added
282 - RTP depacketization of QCELP
284 - gradfun filter added
286 - replace the ocv_smooth filter with a more generic ocv filter
287 - Windows Televison (WTV) demuxer
288 - FFmpeg metadata format muxer and demuxer
289 - SubRip (srt) subtitle decoder
290 - floating-point AC-3 encoder added
292 - ffmpeg -copytb option added
294 - Wing Commander IV movies decoder added
296 - Bink version 'b' audio and video decoder
297 - Bitmap Brothers JV playback system
298 - Apple HTTP Live Streaming protocol handler
299 - sndio support for playback and record
300 - Linux framebuffer input device added
301 - Chronomaster DFA decoder
302 - Mobotix MxPEG decoder
303 - AAC encoding via libvo-aacenc
304 - AMR-WB encoding via libvo-amrwbenc
306 - fieldorder video filter added
311 - PB-frame decoding for H.263
312 - deprecated vhook subsystem removed
313 - deprecated old scaler removed
315 - Alpha channel scaler
317 - RTP packetization of H.263
318 - RTP packetization of AMR
319 - RTP depacketization of Vorbis
320 - CorePNG decoding support
321 - Cook multichannel decoding support
322 - introduced avlanguage helpers in libavformat
323 - 8088flex TMV demuxer and decoder
324 - per-stream language-tags extraction in asfdec
325 - V210 decoder and encoder
326 - remaining GPL parts in AC-3 decoder converted to LGPL
328 - SoX native format muxer and demuxer
329 - AMR-NB decoding/encoding, AMR-WB decoding via OpenCORE libraries
331 - Electronic Arts Madcow decoder
332 - DivX (XSUB) subtitle encoder
333 - nonfree libamr support for AMR-NB/WB decoding/encoding removed
334 - experimental AAC encoder
335 - RTP depacketization of ASF and RTSP from WMS servers
336 - RTMP support in libavformat
337 - noX handling for OPT_BOOL X options
339 - IEC-61937 compatible Muxer
341 - Bluray (PGS) subtitle decoder
342 - LPCM support in MPEG-TS (HDMV RID as found on Blu-ray disks)
344 - Core Audio Format demuxer
346 - MD STUDIO audio demuxer
347 - RF64 support in WAV demuxer
348 - MPEG-4 Audio Lossless Coding (ALS) decoder
349 - -formats option split into -formats, -codecs, -bsfs, and -protocols
351 - CDG demuxer and decoder
353 - Auravision Aura 1 and 2 decoders
354 - Deluxe Paint Animation playback system
356 - Adobe Filmstrip muxer and demuxer
357 - RTP depacketization of H.263
358 - Bink demuxer and audio/video decoders
359 - enable symbol versioning by default for linkers that support it
360 - IFF PBM/ILBM bitmap decoder
363 - RTP depacketization of AMR
369 - Kega Game Video (KGV1) decoder
370 - VorbisComment writing for FLAC, Ogg FLAC and Ogg Speex files
371 - RTP depacketization of Theora
372 - HTTP Digest authentication
373 - RTMP/RTMPT/RTMPS/RTMPE/RTMPTE protocol support via librtmp
374 - Psygnosis YOP demuxer and video decoder
375 - spectral extension support in the E-AC-3 decoder
376 - unsharp video filter
377 - RTP hinting in the mov/3gp/mp4 muxer
378 - Dirac in Ogg demuxing
379 - seek to keyframes in Ogg
380 - 4:2:2 and 4:4:4 Theora decoding
381 - 35% faster VP3/Theora decoding
382 - faster AAC decoding
383 - faster H.264 decoding
384 - RealAudio 1.0 (14.4K) encoder
389 - DV50 AKA DVCPRO50 encoder, decoder, muxer and demuxer
390 - TechSmith Camtasia (TSCC) video decoder
391 - IBM Ultimotion (ULTI) video decoder
392 - Sierra Online audio file demuxer and decoder
393 - Apple QuickDraw (qdrw) video decoder
394 - Creative ADPCM audio decoder (16 bits as well as 8 bits schemes)
395 - Electronic Arts Multimedia (WVE/UV2/etc.) file demuxer
396 - Miro VideoXL (VIXL) video decoder
397 - H.261 video encoder
399 - Nullsoft Video (NSV) file demuxer
400 - Shorten audio decoder
402 - Apple Lossless Audio Codec (ALAC) decoder
403 - Winnov WNV1 video decoder
404 - Autodesk Animator Studio Codec (AASC) decoder
405 - Indeo 2 video decoder
406 - Fraps FPS1 video decoder
407 - Snow video encoder/decoder
408 - Sonic audio encoder/decoder
409 - Vorbis audio decoder
410 - Macromedia ADPCM decoder
411 - Duck TrueMotion 2 video decoder
412 - support for decoding FLX and DTA extensions in FLIC files
413 - H.264 custom quantization matrices support
414 - ffserver fixed, it should now be usable again
416 - Real Cooker audio decoder
417 - TrueSpeech audio decoder
418 - WMA2 audio decoder fixed, now all files should play correctly
419 - RealAudio 14.4 and 28.8 decoders fixed
421 - build system improvements
422 - tabs and trailing whitespace removed from the codebase
423 - CamStudio video decoder
424 - AIFF/AIFF-C audio format, encoding and decoding
425 - ADTS AAC file reading and writing
426 - Creative VOC file reading and writing
427 - American Laser Games multimedia (*.mm) playback system
428 - Zip Motion Blocks Video decoder
429 - improved Theora/VP3 decoder
430 - True Audio (TTA) decoder
431 - AVS demuxer and video decoder
433 - Smacker demuxer and decoder
434 - NuppelVideo/MythTV demuxer and RTjpeg decoder
436 - MPEG-2 intra VLC support
437 - MPEG-2 4:2:2 encoder
438 - Flash Screen Video decoder
440 - Chinese AVS decoder
443 - VC-1/WMV3/WMV9 video decoder
446 - VMware video decoder
449 - WavPack lossless audio decoder
450 - Targa (.TGA) picture decoder
451 - Vorbis audio encoder
452 - Delphine Software .cin demuxer/audio and video decoder
453 - Tiertex .seq demuxer/video decoder
455 - TIFF picture encoder and decoder
456 - GIF picture decoder
457 - Intel Music Coder decoder
458 - Zip Motion Blocks Video encoder
460 - Flash Screen Video encoder
461 - Theora encoding via libtheora
464 - GSM-MS encoder and decoder
466 - DXA demuxer and decoder
468 - Gamecube movie (.THP) playback system
469 - Blackfin optimizations
470 - Interplay C93 demuxer and video decoder
471 - Bethsoft VID demuxer and video decoder
474 - V.Flash PTX decoder
475 - RoQ muxer, RoQ audio encoder
476 - Renderware TXD demuxer and decoder
477 - extern C declarations for C++ removed from headers
478 - sws_flags command line option
482 - OS/2 support removed and restored again
485 - additional SPARC (VIS) optimizations
487 - slice-based parallel H.264 decoding
488 - Monkey's Audio demuxer and decoder
489 - AMV audio and video decoder
491 - H.264 PAFF decoding
492 - Nellymoser ASAO decoder
493 - Beam Software SIFF demuxer and decoder
494 - libvorbis Vorbis decoding removed in favor of native decoder
495 - IntraX8 (J-Frame) subdecoder for WMV2 and VC-1
496 - Ogg (Theora, Vorbis and FLAC) muxer
497 - The "device" muxers and demuxers are now in a new libavdevice library
498 - PC Paintbrush PCX decoder
499 - Sun Rasterfile decoder
500 - TechnoTrend PVA demuxer
501 - Linux Media Labs MPEG-4 (LMLM4) demuxer
502 - AVM2 (Flash 9) SWF muxer
503 - QT variant of IMA ADPCM encoder
505 - iPod/iPhone compatible mp4 muxer
507 - MSN TCP Webcam stream demuxer
508 - RL2 demuxer / decoder
511 - non-recursive Makefiles
513 - MAXIS EA XA (.xa) demuxer / decoder
517 - Electronic Arts CMV decoder
518 - Motion Pixels Video decoder
519 - Motion Pixels MVI demuxer
520 - removed animated GIF decoder/demuxer
521 - D-Cinema audio muxer
522 - Electronic Arts TGV decoder
523 - Apple Lossless Audio Codec (ALAC) encoder
525 - floating point PCM encoder/decoder
527 - DV100 AKA DVCPRO HD decoder and demuxer
528 - E-AC-3 support added to AC-3 decoder
529 - Nellymoser ASAO encoder
530 - ASS and SSA demuxer and muxer
531 - liba52 wrapper removed
532 - SVQ3 watermark decoding support
533 - Speex decoding via libspeex
534 - Electronic Arts TGQ decoder
536 - QCELP / PureVoice decoder
538 - hybrid WavPack support
539 - R3D REDCODE demuxer
540 - ALSA support for playback and record
541 - Electronic Arts TQI decoder
542 - OpenJPEG based JPEG 2000 decoder
543 - NC (NC4600) camera file demuxer
544 - Gopher client support
546 - generic metadata API
551 - DV encoder, DV muxer
552 - Microsoft RLE video decoder
553 - Microsoft Video-1 decoder
554 - Apple Animation (RLE) decoder
555 - Apple Graphics (SMC) decoder
556 - Apple Video (RPZA) decoder
558 - Sega FILM (CPK) file demuxer
559 - Westwood multimedia support (VQA & AUD files)
560 - Id Quake II CIN playback support
562 - FLIC playback support
563 - RealVideo 2.0 (RV20) decoder
564 - Duck TrueMotion v1 (DUCK) video decoder
565 - Sierra VMD demuxer and video decoder
566 - MSZH and ZLIB decoder support
570 - rate distortion optimal cbp support
571 - rate distorted optimal ac prediction for MPEG-4
572 - rate distorted optimal lambda->qp support
573 - AAC encoding with libfaac
574 - Sunplus JPEG codec (SP5X) support
575 - use Lagrange multipler instead of QP for ratecontrol
576 - Theora/VP3 decoding support
577 - XA and ADX ADPCM codecs
578 - export MPEG-2 active display area / pan scan
579 - Add support for configuring with IBM XLC
580 - floating point AAN DCT
581 - initial support for zygo video (not complete)
583 - new audio/video parser API
585 - av_read_frame() and av_seek_frame() support
586 - missing last frame fixes
587 - seek by mouse in ffplay
588 - noise reduction of DCT coefficients
589 - H.263 OBMC & 4MV support
590 - H.263 alternative inter vlc support
592 - H.263 slice structured mode
593 - interlaced DCT support for MPEG-2 encoding
594 - stuffing to stay above min_bitrate
595 - MB type & QP visualization
596 - frame stepping for ffplay
597 - interlaced motion estimation
598 - alternate scantable support
599 - SVCD scan offset support
602 - quantizer noise shaping
603 - G.726 ADPCM audio codec
605 - multithreaded/SMP motion estimation
606 - multithreaded/SMP encoding for MPEG-1/MPEG-2/MPEG-4/H.263
607 - multithreaded/SMP decoding for MPEG-2
609 - Metrowerks CodeWarrior suppport
610 - H.263+ custom pcf support
611 - nicer output for 'ffmpeg -formats'
613 - SGI image format, encoding and decoding
614 - H.264 loop filter support
615 - H.264 CABAC support
616 - nicer looking arrows for the motion vector visualization
617 - improved VCD support
618 - audio timestamp drift compensation
619 - MPEG-2 YUV 422/444 support
620 - polyphase kaiser windowed sinc and blackman nuttall windowed sinc audio resample
621 - better image scaling
623 - correctly interleave packets during encoding
624 - VIS optimized motion compensation
625 - intra_dc_precision>0 encoding support
626 - support reuse of motion vectors/MB types/field select values of the source video
627 - more accurate deblock filter
629 - many optimizations and bugfixes
630 - FunCom ISS audio file demuxer and according ADPCM decoding
635 - MPEG-2 video encoding (Michael)
636 - Id RoQ playback subsystem (Mike Melanson and Tim Ferguson)
637 - Wing Commander III Movie (.mve) file playback subsystem (Mike Melanson
639 - Xan DPCM audio decoder (Mario Brito)
640 - Interplay MVE playback subsystem (Mike Melanson)
641 - Duck DK3 and DK4 ADPCM audio decoders (Mike Melanson)
646 - RealAudio 1.0 (14_4) and 2.0 (28_8) native decoders. Author unknown, code from mplayerhq
647 (originally from public domain player for Amiga at http://www.honeypot.net/audio)
648 - current version now also compiles with older GCC (Fabrice)
649 - 4X multimedia playback system including 4xm file demuxer (Mike
650 Melanson), and 4X video and audio codecs (Michael)
651 - Creative YUV (CYUV) decoder (Mike Melanson)
652 - FFV1 codec (our very simple lossless intra only codec, compresses much better
653 than HuffYUV) (Michael)
654 - ASV1 (Asus), H.264, Intel indeo3 codecs have been added (various)
655 - tiny PNG encoder and decoder, tiny GIF decoder, PAM decoder (PPM with
656 alpha support), JPEG YUV colorspace support. (Fabrice Bellard)
657 - ffplay has been replaced with a newer version which uses SDL (optionally)
658 for multiplatform support (Fabrice)
659 - Sorenson Version 3 codec (SVQ3) support has been added (decoding only) - donated
661 - AMR format has been added (Johannes Carlsson)
662 - 3GP support has been added (Johannes Carlsson)
663 - VP3 codec has been added (Mike Melanson)
664 - more MPEG-1/2 fixes
665 - better multiplatform support, MS Visual Studio fixes (various)
666 - AltiVec optimizations (Magnus Damn and others)
667 - SH4 processor support has been added (BERO)
668 - new public interfaces (avcodec_get_pix_fmt) (Roman Shaposhnick)
669 - VOB streaming support (Brian Foley)
670 - better MP3 autodetection (Andriy Rysin)
671 - qpel encoding (Michael)
672 - 4mv+b frames encoding finally fixed (Michael)
673 - chroma ME (Michael)
674 - 5 comparison functions for ME (Michael)
675 - B-frame encoding speedup (Michael)
676 - WMV2 codec (unfinished - Michael)
677 - user specified diamond size for EPZS (Michael)
678 - Playstation STR playback subsystem, still experimental (Mike and Michael)
679 - ASV2 codec (Michael)
680 - CLJR decoder (Alex)
682 .. And lots more new enhancements and fixes.
687 - completely new integer only MPEG audio layer 1/2/3 decoder rewritten
689 - Recoded DCT and motion vector search with gcc (no longer depends on nasm)
690 - fix quantization bug in AC3 encoder
691 - added PCM codecs and format. Corrected WAV/AVI/ASF PCM issues
692 - added prototype ffplay program
693 - added GOB header parsing on H.263/H.263+ decoder (Juanjo)
694 - bug fix on MCBPC tables of H.263 (Juanjo)
695 - bug fix on DC coefficients of H.263 (Juanjo)
696 - added Advanced Prediction Mode on H.263/H.263+ decoder (Juanjo)
697 - now we can decode H.263 streams found in QuickTime files (Juanjo)
698 - now we can decode H.263 streams found in VIVO v1 files(Juanjo)
699 - preliminary RTP "friendly" mode for H.263/H.263+ coding. (Juanjo)
700 - added GOB header for H.263/H.263+ coding on RTP mode (Juanjo)
701 - now H.263 picture size is returned on the first decoded frame (Juanjo)
702 - added first regression tests
703 - added MPEG-2 TS demuxer
704 - new demux API for libav
705 - more accurate and faster IDCT (Michael)
706 - faster and entropy-controlled motion search (Michael)
707 - two pass video encoding (Michael)
708 - new video rate control (Michael)
709 - added MSMPEG4V1, MSMPEGV2 and WMV1 support (Michael)
710 - great performance improvement of video encoders and decoders (Michael)
711 - new and faster bit readers and vlc parsers (Michael)
712 - high quality encoding mode: tries all macroblock/VLC types (Michael)
713 - added DV video decoder
714 - preliminary RTP/RTSP support in ffserver and libavformat
715 - H.263+ AIC decoding/encoding support (Juanjo)
716 - VCD MPEG-PS mode (Juanjo)
717 - PSNR stuff (Juanjo)
718 - simple stats output (Juanjo)
719 - 16-bit and 15-bit RGB/BGR/GBR support (Bisqwit)
724 - some header fixes (Zdenek Kabelac <kabi at informatics.muni.cz>)
725 - many MMX optimizations (Nick Kurshev <nickols_k at mail.ru>)
726 - added configure system (actually a small shell script)
727 - added MPEG audio layer 1/2/3 decoding using LGPL'ed mpglib by
728 Michael Hipp (temporary solution - waiting for integer only
730 - fixed VIDIOCSYNC interrupt
731 - added Intel H.263 decoding support ('I263' AVI fourCC)
732 - added Real Video 1.0 decoding (needs further testing)
733 - simplified image formats again. Added PGM format (=grey
734 pgm). Renamed old PGM to PGMYUV.
735 - fixed msmpeg4 slice issues (tell me if you still find problems)
736 - fixed OpenDivX bugs with newer versions (added VOL header decoding)
737 - added support for MPlayer interface
738 - added macroblock skip optimization
739 - added MJPEG decoder
740 - added mmx/mmxext IDCT from libmpeg2
741 - added pgmyuvpipe, ppm, and ppm_pipe formats (original patch by Celer
742 <celer at shell.scrypt.net>)
743 - added pixel format conversion layer (e.g. for MJPEG or PPM)
744 - added deinterlacing option
746 - MPEG-4 vol header fixes (Jonathan Marsden <snmjbm at pacbell.net>)
747 - ARM optimizations (Lionel Ulmer <lionel.ulmer at free.fr>).
748 - Windows porting of file converter
749 - added MJPEG raw format (input/ouput)
750 - added JPEG image format support (input/output)
755 - fixed some std header definitions (Bjorn Lindgren
756 <bjorn.e.lindgren at telia.com>).
757 - added MPEG demuxer (MPEG-1 and 2 compatible).
759 - added prototype RM demuxer
760 - added AC3 decoding (done with libac3 by Aaron Holtzman)
761 - added decoding codec parameter guessing (.e.g. for MPEG, because the
762 header does not include them)
763 - fixed header generation in MPEG-1, AVI and ASF muxer: wmplayer can now
764 play them (only tested video)
765 - fixed H.263 white bug
766 - fixed phase rounding in img resample filter
767 - add MMX code for polyphase img resample filter
768 - added CPU autodetection
769 - added generic title/author/copyright/comment string handling (ASF and RM
771 - added SWF demux to extract MP3 track (not usable yet because no MP3
773 - added fractional frame rate support
774 - codecs are no longer searched by read_header() (should fix ffserver
780 - BGR24 patch (initial patch by Jeroen Vreeken <pe1rxq at amsat.org>)
781 - fixed raw yuv output
782 - added motion rounding support in MPEG-4
783 - fixed motion bug rounding in MSMPEG4
784 - added B-frame handling in video core
785 - added full MPEG-1 decoding support
786 - added partial (frame only) MPEG-2 support
787 - changed the FOURCC code for H.263 to "U263" to be able to see the
788 +AVI/H.263 file with the UB Video H.263+ decoder. MPlayer works with
789 this +codec ;) (JuanJo).
790 - Halfpel motion estimation after MB type selection (JuanJo)
791 - added pgm and .Y.U.V output format
792 - suppressed 'img:' protocol. Simply use: /tmp/test%d.[pgm|Y] as input or
794 - added pgmpipe I/O format (original patch from Martin Aumueller
795 <lists at reserv.at>, but changed completely since we use a format
796 instead of a protocol)
801 - added H.263/MPEG-4/MSMPEG4 decoding support. MPEG-4 decoding support
802 (for OpenDivX) is almost complete: 8x8 MVs and rounding are
803 missing. MSMPEG4 support is complete.
804 - added prototype MPEG-1 decoder. Only I- and P-frames handled yet (it
805 can decode ffmpeg MPEGs :-)).
806 - added libavcodec API documentation (see apiexample.c).
807 - fixed image polyphase bug (the bottom of some images could be
809 - added support for non clipped motion vectors (decoding only)
810 and image sizes non-multiple of 16
811 - added support for AC prediction (decoding only)
812 - added file overwrite confirmation (can be disabled with -y)
813 - added custom size picture to H.263 using H.263+ (Juanjo)
818 - added MSMPEG4 (aka DivX) compatible encoder. Changed default codec
819 of AVI and ASF to DIV3.
820 - added -me option to set motion estimation method
821 (default=log). suppressed redundant -hq option.
822 - added options -acodec and -vcodec to force a given codec (useful for
825 - improved dct_quantize speed
826 - factorized some motion estimation code
831 - removing grab code from ffserver and moved it to ffmpeg. Added
832 multistream support to ffmpeg.
833 - added timeshifting support for live feeds (option ?date=xxx in the
835 - added high quality image resize code with polyphase filter (need
836 mmx/see optimization). Enable multiple image size support in ffserver.
837 - added multi live feed support in ffserver
838 - suppressed master feature from ffserver (it should be done with an
839 external program which opens the .ffm url and writes it to another
841 - added preliminary support for video stream parsing (WAV and AVI half
842 done). Added proper support for audio/video file conversion in
844 - added preliminary support for video file sending from ffserver
845 - redesigning I/O subsystem: now using URL based input and output
847 - added WAV format support
848 - added "tty user interface" to ffmpeg to stop grabbing gracefully
849 - added MMX/SSE optimizations to SAD (Sums of Absolutes Differences)
850 (Juan J. Sierralta P. a.k.a. "Juanjo" <juanjo at atmlab.utfsm.cl>)
851 - added MMX DCT from mpeg2_movie 1.5 (Juanjo)
852 - added new motion estimation algorithms, log and phods (Juanjo)
853 - changed directories: libav for format handling, libavcodec for
859 - added stereo in MPEG audio encoder
864 - added 'high quality' mode which use motion vectors. It can be used in
865 real time at low resolution.
866 - fixed rounding problems which caused quality problems at high
867 bitrates and large GOP size
870 version 0.3.2: small fixes
876 version 0.3.1: added avi/divx support
879 - added MPEG-4 codec compatible with OpenDivX. It is based on the H.263 codec
880 - added sound for flash format (not tested)
883 version 0.3: initial public release