1 Entries are sorted chronologically from oldest to youngest within each release,
2 releases are sorted from youngest to oldest.
7 - replaygain data export
8 - Alias PIX image encoder and decoder
9 - BRender PIX image decoder
10 - Amazing Studio PAF playback support
12 - bmp standalone parser
13 - OpenEXR image decoder
14 - support encoding and decoding 4-channel SGI images
15 - support decoding 16-bit RLE SGI images
17 - LucasArts SMUSH SANM video decoder
18 - LucasArts SMUSH VIMA audio decoder (ADPCM)
19 - LucasArts SMUSH demuxer
20 - MP2 encoding via TwoLAME
22 - Silicon Graphics RLE 8-bit video decoder
23 - Silicon Graphics Motion Video Compressor 1 & 2 decoder
24 - Silicon Graphics Movie demuxer
25 - On2 AVC (Audio for Video) decoder
26 - support for decoding through DXVA2 in avconv
27 - libbs2b-based stereo-to-binaural audio filter
29 - display matrix export and rotation api
30 - drop avserver, it was unmaintained for years and largely broken
35 - support ID3v2 tags in ASF files
36 - reference-counting for AVFrame and AVPacket data
37 - avconv now fails when input options are used for output file
39 - avconv options -filter_script and -filter_complex_script, which allow a
40 filtergraph description to be read from a file
41 - uniform options syntax across all filters
44 - asetpts filter (same as setpts, but for audio)
45 - trim and atrim filters
46 - avconv -t and -ss (output-only) options are now sample-accurate when
48 - Matroska muxer can now put the index at the beginning of the file.
49 - avconv -deinterlace option removed, the yadif filter should be used instead
50 - Apple Intermediate Codec decoder
51 - Escape 130 video decoder
52 - support for slice multithreading in libavfilter
53 - VC-1 interlaced B-frame support
54 - support for WavPack muxing (raw and in Matroska)
56 - WavPack encoding through libwavpack
57 - Added the -n parameter to avconv
59 - when transcoding with avconv (i.e. not streamcopying), -ss is now accurate
60 even when used as an input option. Previous behavior can be restored with
61 the -noaccurate_seek option.
62 - avconv -t option can now be used for inputs, to limit the duration of
63 data read from an input file
64 - Voxware MetaSound decoder
66 - Error Resilient AAC syntax (ER AAC LC) decoding
67 - Low Delay AAC (ER AAC LD) decoding
68 - mux chapters in ASF files
69 - Opus in Ogg demuxing
70 - Enhanced Low Delay AAC (ER AAC ELD) decoding (no LD SBR support)
72 - HNM version 4 demuxer and video decoder
74 - raw HEVC, HEVC in MOV/MP4, HEVC in Matroska, HEVC in MPEG-TS demuxing
75 - remove avplay -vismv option, which has not worked for a long time
77 - setsar/setdar filters now support variables in ratio expressions
78 - dar variable in the scale filter now returns the actual DAR (i.e. a * sar)
80 - support for decoding through VDPAU in avconv (the -hwaccel option)
81 - remove mp3_header_(de)compress bitstream filters
82 - stereoscopic 3d metadata handling
83 - png standalone parser
84 - WebP encoding via libwebp
87 - Mirillis FIC video decoder
89 - compand audio filter
93 - av_basename and av_dirname
94 - adobe and limelight publisher authentication in RTMP
95 - VDPAU hardware acceleration through normal hwaccel
100 - ashowinfo audio filter
101 - 24-bit FLAC encoding
102 - audio volume filter
103 - deprecated the avconv -vol option. the volume filter is to be used instead.
104 - multi-channel ALAC encoding up to 7.1
105 - TAK demuxer, parser, and decoder
106 - adaptive frame-level multithreading for H.264
110 - metadata (INFO tag) support in WAV muxer
111 - support for building DLLs using MSVC
112 - remove avserver daemon mode
113 - support building on the Plan 9 operating system
114 - ffv1: support version 1.3
119 - XWD encoder and decoder
120 - Support for fragmentation in the mov/mp4 muxer
121 - ISMV (Smooth Streaming) muxer
122 - CDXL demuxer and decoder
123 - Apple ProRes encoder
124 - Sun Rasterfile Encoder
126 - ID3v2 attached pictures reading and writing
127 - WMA Lossless decoder
129 - RealAudio Lossless decoder
131 - drop support for avconv without libavfilter
132 - add libavresample audio conversion library
133 - audio filters support in libavfilter and avconv
137 - avprobe output is now standard INI or JSON. The old format can still
138 be used with -of old.
139 - Indeo Audio decoder
140 - channelsplit audio filter
141 - RTMPT protocol support
142 - iLBC encoding/decoding via libilbc
143 - Microsoft Screen 1 decoder
145 - audio channel mapping filter
146 - Microsoft ATC Screen decoder
148 - TechSmith Screen Codec 2 decoder
149 - AAC encoding via libfdk-aac
150 - Microsoft Expression Encoder Screen decoder
151 - RTMPS protocol support
152 - RTMPTS protocol support
153 - JPEG 2000 encoding support through OpenJPEG
154 - G.723.1 demuxer and decoder
155 - RTMPE protocol support
156 - RTMPTE protocol support
157 - Canopus Lossless Codec decoder
158 - avconv -shortest option is now per-output file,
159 -pass and -passlogfile are now per-output stream
161 - Microsoft Screen 2 decoder
162 - RTP depacketization of JPEG
163 - Smooth Streaming live segmenter muxer
164 - RTP packetization of JPEG
165 - Opus decoder and encoder using libopus
166 - remove -same_quant, it hasn't worked for years
167 - support for building with MSVC
178 - Automatic thread count based on detection number of (available) CPU cores
179 - Deprecate libpostproc. If desired, the switch --enable-postproc will
180 enable it but it may be removed in a later Libav release.
181 - rv34: frame-level multi-threading
182 - optimized iMDCT transform on x86 using SSE for for mpegaudiodec
188 - Flash Screen Video 2 decoder
189 - ffplay/ffprobe/ffserver renamed to avplay/avprobe/avserver
190 - ffmpeg deprecated, added avconv, which is almost the same for now, except
191 for a few incompatible changes in the options, which will hopefully make them
192 easier to use. The changes are:
193 * The options placement is now strictly enforced! While in theory the
194 options for ffmpeg should be given in [input options] -i INPUT [output
195 options] OUTPUT order, in practice it was possible to give output options
196 before the -i and it mostly worked. Except when it didn't - the behavior was
197 a bit inconsistent. In avconv, it is not possible to mix input and output
198 options. All non-global options are reset after an input or output filename.
199 * All per-file options are now truly per-file - they apply only to the next
200 input or output file and specifying different values for different files
201 will now work properly (notably -ss and -t options).
202 * All per-stream options are now truly per-stream - it is possible to
203 specify which stream(s) should a given option apply to. See the Stream
204 specifiers section in the avconv manual for details.
205 * In ffmpeg some options (like -newvideo/-newaudio/...) are irregular in the
206 sense that they're specified after the output filename instead of before,
207 like all other options. In avconv this irregularity is removed, all options
208 apply to the next input or output file.
209 * -newvideo/-newaudio/-newsubtitle options were removed. Not only were they
210 irregular and highly confusing, they were also redundant. In avconv the -map
211 option will create new streams in the output file and map input streams to
212 them. E.g. avconv -i INPUT -map 0 OUTPUT will create an output stream for
213 each stream in the first input file.
214 * The -map option now has slightly different and more powerful syntax:
215 + Colons (':') are used to separate file index/stream type/stream index
216 instead of dots. Comma (',') is used to separate the sync stream instead
217 of colon.. This is done for consistency with other options.
218 + It's possible to specify stream type. E.g. -map 0:a:2 creates an
219 output stream from the third input audio stream.
220 + Omitting the stream index now maps all the streams of the given type,
221 not just the first. E.g. -map 0:s creates output streams for all the
222 subtitle streams in the first input file.
223 + Since -map can now match multiple streams, negative mappings were
224 introduced. Negative mappings disable some streams from an already
225 defined map. E.g. '-map 0 -map -0:a:1' means 'create output streams for
226 all the stream in the first input file, except for the second audio
228 * There is a new option -c (or -codec) for choosing the decoder/encoder to
229 use, which allows to precisely specify target stream(s) consistently with
230 other options. E.g. -c:v lib264 sets the codec for all video streams, -c:a:0
231 libvorbis sets the codec for the first audio stream and -c copy copies all
232 the streams without reencoding. Old -vcodec/-acodec/-scodec options are now
234 * It is now possible to precisely specify which stream should an AVOption
235 apply to. E.g. -b:v:0 2M sets the bitrate for the first video stream, while
236 -b:a 128k sets the bitrate for all audio streams. Note that the old -ab 128k
237 syntax is deprecated and will stop working soon.
238 * -map_chapters now takes only an input file index and applies to the next
239 output file. This is consistent with how all the other options work.
240 * -map_metadata now takes only an input metadata specifier and applies to
241 the next output file. Output metadata specifier is now part of the option
242 name, similarly to the AVOptions/map/codec feature above.
243 * -metadata can now be used to set metadata on streams and chapters, e.g.
244 -metadata:s:1 language=eng sets the language of the first stream to 'eng'.
245 This made -vlang/-alang/-slang options redundant, so they were removed.
246 * -qscale option now uses stream specifiers and applies to all streams, not
247 just video. I.e. plain -qscale number would now apply to all streams. To get
248 the old behavior, use -qscale:v. Also there is now a shortcut -q for -qscale
249 and -aq is now an alias for -q:a.
250 * -vbsf/-absf/-sbsf options were removed and replaced by a -bsf option which
251 uses stream specifiers. Use -bsf:v/a/s instead of the old options.
252 * -itsscale option now uses stream specifiers, so its argument is only the
254 * -intra option was removed, use -g 0 for the same effect.
255 * -psnr option was removed, use -flags +psnr for the same effect.
256 * -vf option is now an alias to the new -filter option, which uses stream specifiers.
257 * -vframes/-aframes/-dframes options are now aliases to the new -frames option.
258 * -vtag/-atag/-stag options are now aliases to the new -tag option.
260 - Windows Media Image decoder
264 - libcdio-paranoia input device for audio CD grabbing
266 - Apple ProRes decoder
267 - CELT in Ogg demuxing
268 - VC-1 interlaced decoding
269 - lut, lutrgb, and lutyuv filters
272 - Speex encoding via libspeex
273 - 4:2:2 H.264 decoding support
274 - 4:2:2 and 4:4:4 H.264 encoding with libx264
275 - Pulseaudio input device
276 - replacement Indeo 3 decoder
277 - TLS/SSL and HTTPS protocol support
278 - AVOptions API rewritten and documented
279 - most of CODEC_FLAG2_*, some CODEC_FLAG_* and many codec-specific fields in
280 AVCodecContext deprecated. Codec private options should be used instead.
281 - Properly working defaults in libx264 wrapper, support for native presets.
282 - Encrypted OMA files support
283 - Discworld II BMV decoding support
285 - OS X Video Decoder Acceleration (VDA) support
286 - CRI ADX audio format muxer and demuxer
287 - Playstation Portable PMP format demuxer
288 - PCM format support in OMA demuxer
290 - Dxtory capture format decoder
291 - v410 QuickTime uncompressed 4:4:4 10-bit encoder and decoder
293 - Simple segmenting muxer
300 - E-AC-3 audio encoder
301 - ac3enc: add channel coupling support
302 - floating-point sample format support for (E-)AC-3, DCA, AAC, Vorbis decoders
303 - H.264/MPEG frame-level multithreading
304 - av_metadata_* functions renamed to av_dict_* and moved to libavutil
305 - 4:4:4 H.264 decoding support
306 - 10-bit H.264 optimizations for x86
307 - bump libswscale for recently reported ABI break
312 - VP8 frame-level multithreading
313 - NEON optimizations for VP8
314 - removed a lot of deprecated API cruft
315 - FFT and IMDCT optimizations for AVX (Sandy Bridge) processors
317 - SMPTE 302M AES3 audio decoder
318 - ffmpeg no longer quits after the 'q' key is pressed; use 'ctrl+c' instead
319 - 9bit and 10bit per sample support in the H.264 decoder
324 - WebM support in Matroska de/muxer
325 - low overhead Ogg muxing
327 - VP8 de/encoding via libvpx
328 - Demuxer for On2's IVF format
329 - Pictor/PC Paint decoder
331 - libfaad2 wrapper removed
332 - DTS-ES extension (XCh) decoding support
334 - RTSP tunneling over HTTP
335 - RTP depacketization of SVQ3
336 - -strict inofficial replaced by -strict unofficial
337 - ffplay -exitonkeydown and -exitonmousedown options added
338 - native GSM / GSM MS decoder
339 - RTP depacketization of QDM2
340 - ANSI/ASCII art playback system
341 - Lego Mindstorms RSO de/muxer
342 - SubRip subtitle file muxer and demuxer
343 - Chinese AVS encoding via libxavs
344 - ffprobe -show_packets option added
345 - RTP packetization of Theora and Vorbis
346 - RTP depacketization of MP4A-LATM
347 - RTP packetization and depacketization of VP8
349 - Apple HTTP Live Streaming demuxer
352 - G.722 ADPCM audio encoder/decoder
355 - frei0r wrapper filter
356 - change crop filter syntax to width:height:x:y
357 - make the crop filter accept parametric expressions
358 - make ffprobe accept AVFormatContext options
361 - Demuxer for Leitch/Harris' VR native stream format (LXF)
362 - RTP depacketization of the X-QT QuickTime format
363 - SAP (Session Announcement Protocol, RFC 2974) muxer and demuxer
365 - ffmpeg -crop* options removed
366 - transpose filter added
367 - ffmpeg -force_key_frames option added
368 - demuxer for receiving raw rtp:// URLs without an SDP description
369 - single stream LATM/LOAS decoder
370 - setpts filter added
371 - Win64 support for optimized x86 assembly functions
372 - MJPEG/AVI1 to JPEG/JFIF bitstream filter
373 - ASS subtitle encoder and decoder
374 - IEC 61937 encapsulation for E-AC-3, TrueHD, DTS-HD (for HDMI passthrough)
375 - overlay filter added
376 - rename aspect filter to setdar, and pixelaspect to setsar
378 - Mobotix .mxg demuxer
379 - frei0r source added
380 - hqdn3d filter added
381 - RTP depacketization of QCELP
383 - gradfun filter added
385 - replace the ocv_smooth filter with a more generic ocv filter
386 - Windows Televison (WTV) demuxer
387 - FFmpeg metadata format muxer and demuxer
388 - SubRip (srt) subtitle decoder
389 - floating-point AC-3 encoder added
391 - ffmpeg -copytb option added
393 - Wing Commander IV movies decoder added
395 - Bink version 'b' audio and video decoder
396 - Bitmap Brothers JV playback system
397 - Apple HTTP Live Streaming protocol handler
398 - sndio support for playback and record
399 - Linux framebuffer input device added
400 - Chronomaster DFA decoder
401 - Mobotix MxPEG decoder
402 - AAC encoding via libvo-aacenc
403 - AMR-WB encoding via libvo-amrwbenc
405 - fieldorder video filter added
410 - PB-frame decoding for H.263
411 - deprecated vhook subsystem removed
412 - deprecated old scaler removed
414 - Alpha channel scaler
416 - RTP packetization of H.263
417 - RTP packetization of AMR
418 - RTP depacketization of Vorbis
419 - CorePNG decoding support
420 - Cook multichannel decoding support
421 - introduced avlanguage helpers in libavformat
422 - 8088flex TMV demuxer and decoder
423 - per-stream language-tags extraction in asfdec
424 - V210 decoder and encoder
425 - remaining GPL parts in AC-3 decoder converted to LGPL
427 - SoX native format muxer and demuxer
428 - AMR-NB decoding/encoding, AMR-WB decoding via OpenCORE libraries
430 - Electronic Arts Madcow decoder
431 - DivX (XSUB) subtitle encoder
432 - nonfree libamr support for AMR-NB/WB decoding/encoding removed
433 - experimental AAC encoder
434 - RTP depacketization of ASF and RTSP from WMS servers
435 - RTMP support in libavformat
436 - noX handling for OPT_BOOL X options
438 - IEC-61937 compatible Muxer
440 - Bluray (PGS) subtitle decoder
441 - LPCM support in MPEG-TS (HDMV RID as found on Blu-ray disks)
443 - Core Audio Format demuxer
445 - MD STUDIO audio demuxer
446 - RF64 support in WAV demuxer
447 - MPEG-4 Audio Lossless Coding (ALS) decoder
448 - -formats option split into -formats, -codecs, -bsfs, and -protocols
450 - CDG demuxer and decoder
452 - Auravision Aura 1 and 2 decoders
453 - Deluxe Paint Animation playback system
455 - Adobe Filmstrip muxer and demuxer
456 - RTP depacketization of H.263
457 - Bink demuxer and audio/video decoders
458 - enable symbol versioning by default for linkers that support it
459 - IFF PBM/ILBM bitmap decoder
462 - RTP depacketization of AMR
468 - Kega Game Video (KGV1) decoder
469 - VorbisComment writing for FLAC, Ogg FLAC and Ogg Speex files
470 - RTP depacketization of Theora
471 - HTTP Digest authentication
472 - RTMP/RTMPT/RTMPS/RTMPE/RTMPTE protocol support via librtmp
473 - Psygnosis YOP demuxer and video decoder
474 - spectral extension support in the E-AC-3 decoder
475 - unsharp video filter
476 - RTP hinting in the mov/3gp/mp4 muxer
477 - Dirac in Ogg demuxing
478 - seek to keyframes in Ogg
479 - 4:2:2 and 4:4:4 Theora decoding
480 - 35% faster VP3/Theora decoding
481 - faster AAC decoding
482 - faster H.264 decoding
483 - RealAudio 1.0 (14.4K) encoder
488 - DV50 AKA DVCPRO50 encoder, decoder, muxer and demuxer
489 - TechSmith Camtasia (TSCC) video decoder
490 - IBM Ultimotion (ULTI) video decoder
491 - Sierra Online audio file demuxer and decoder
492 - Apple QuickDraw (qdrw) video decoder
493 - Creative ADPCM audio decoder (16 bits as well as 8 bits schemes)
494 - Electronic Arts Multimedia (WVE/UV2/etc.) file demuxer
495 - Miro VideoXL (VIXL) video decoder
496 - H.261 video encoder
498 - Nullsoft Video (NSV) file demuxer
499 - Shorten audio decoder
501 - Apple Lossless Audio Codec (ALAC) decoder
502 - Winnov WNV1 video decoder
503 - Autodesk Animator Studio Codec (AASC) decoder
504 - Indeo 2 video decoder
505 - Fraps FPS1 video decoder
506 - Snow video encoder/decoder
507 - Sonic audio encoder/decoder
508 - Vorbis audio decoder
509 - Macromedia ADPCM decoder
510 - Duck TrueMotion 2 video decoder
511 - support for decoding FLX and DTA extensions in FLIC files
512 - H.264 custom quantization matrices support
513 - ffserver fixed, it should now be usable again
515 - Real Cooker audio decoder
516 - TrueSpeech audio decoder
517 - WMA2 audio decoder fixed, now all files should play correctly
518 - RealAudio 14.4 and 28.8 decoders fixed
520 - build system improvements
521 - tabs and trailing whitespace removed from the codebase
522 - CamStudio video decoder
523 - AIFF/AIFF-C audio format, encoding and decoding
524 - ADTS AAC file reading and writing
525 - Creative VOC file reading and writing
526 - American Laser Games multimedia (*.mm) playback system
527 - Zip Motion Blocks Video decoder
528 - improved Theora/VP3 decoder
529 - True Audio (TTA) decoder
530 - AVS demuxer and video decoder
532 - Smacker demuxer and decoder
533 - NuppelVideo/MythTV demuxer and RTjpeg decoder
535 - MPEG-2 intra VLC support
536 - MPEG-2 4:2:2 encoder
537 - Flash Screen Video decoder
539 - Chinese AVS decoder
542 - VC-1/WMV3/WMV9 video decoder
545 - VMware video decoder
548 - WavPack lossless audio decoder
549 - Targa (.TGA) picture decoder
550 - Vorbis audio encoder
551 - Delphine Software .cin demuxer/audio and video decoder
552 - Tiertex .seq demuxer/video decoder
554 - TIFF picture encoder and decoder
555 - GIF picture decoder
556 - Intel Music Coder decoder
557 - Zip Motion Blocks Video encoder
559 - Flash Screen Video encoder
560 - Theora encoding via libtheora
563 - GSM-MS encoder and decoder
565 - DXA demuxer and decoder
567 - Gamecube movie (.THP) playback system
568 - Blackfin optimizations
569 - Interplay C93 demuxer and video decoder
570 - Bethsoft VID demuxer and video decoder
573 - V.Flash PTX decoder
574 - RoQ muxer, RoQ audio encoder
575 - Renderware TXD demuxer and decoder
576 - extern C declarations for C++ removed from headers
577 - sws_flags command line option
581 - OS/2 support removed and restored again
584 - additional SPARC (VIS) optimizations
586 - slice-based parallel H.264 decoding
587 - Monkey's Audio demuxer and decoder
588 - AMV audio and video decoder
590 - H.264 PAFF decoding
591 - Nellymoser ASAO decoder
592 - Beam Software SIFF demuxer and decoder
593 - libvorbis Vorbis decoding removed in favor of native decoder
594 - IntraX8 (J-Frame) subdecoder for WMV2 and VC-1
595 - Ogg (Theora, Vorbis and FLAC) muxer
596 - The "device" muxers and demuxers are now in a new libavdevice library
597 - PC Paintbrush PCX decoder
598 - Sun Rasterfile decoder
599 - TechnoTrend PVA demuxer
600 - Linux Media Labs MPEG-4 (LMLM4) demuxer
601 - AVM2 (Flash 9) SWF muxer
602 - QT variant of IMA ADPCM encoder
604 - iPod/iPhone compatible mp4 muxer
606 - MSN TCP Webcam stream demuxer
607 - RL2 demuxer / decoder
610 - non-recursive Makefiles
612 - MAXIS EA XA (.xa) demuxer / decoder
616 - Electronic Arts CMV decoder
617 - Motion Pixels Video decoder
618 - Motion Pixels MVI demuxer
619 - removed animated GIF decoder/demuxer
620 - D-Cinema audio muxer
621 - Electronic Arts TGV decoder
622 - Apple Lossless Audio Codec (ALAC) encoder
624 - floating point PCM encoder/decoder
626 - DV100 AKA DVCPRO HD decoder and demuxer
627 - E-AC-3 support added to AC-3 decoder
628 - Nellymoser ASAO encoder
629 - ASS and SSA demuxer and muxer
630 - liba52 wrapper removed
631 - SVQ3 watermark decoding support
632 - Speex decoding via libspeex
633 - Electronic Arts TGQ decoder
635 - QCELP / PureVoice decoder
637 - hybrid WavPack support
638 - R3D REDCODE demuxer
639 - ALSA support for playback and record
640 - Electronic Arts TQI decoder
641 - OpenJPEG based JPEG 2000 decoder
642 - NC (NC4600) camera file demuxer
643 - Gopher client support
645 - generic metadata API
650 - DV encoder, DV muxer
651 - Microsoft RLE video decoder
652 - Microsoft Video-1 decoder
653 - Apple Animation (RLE) decoder
654 - Apple Graphics (SMC) decoder
655 - Apple Video (RPZA) decoder
657 - Sega FILM (CPK) file demuxer
658 - Westwood multimedia support (VQA & AUD files)
659 - Id Quake II CIN playback support
661 - FLIC playback support
662 - RealVideo 2.0 (RV20) decoder
663 - Duck TrueMotion v1 (DUCK) video decoder
664 - Sierra VMD demuxer and video decoder
665 - MSZH and ZLIB decoder support
669 - rate distortion optimal cbp support
670 - rate distorted optimal ac prediction for MPEG-4
671 - rate distorted optimal lambda->qp support
672 - AAC encoding with libfaac
673 - Sunplus JPEG codec (SP5X) support
674 - use Lagrange multipler instead of QP for ratecontrol
675 - Theora/VP3 decoding support
676 - XA and ADX ADPCM codecs
677 - export MPEG-2 active display area / pan scan
678 - Add support for configuring with IBM XLC
679 - floating point AAN DCT
680 - initial support for zygo video (not complete)
682 - new audio/video parser API
684 - av_read_frame() and av_seek_frame() support
685 - missing last frame fixes
686 - seek by mouse in ffplay
687 - noise reduction of DCT coefficients
688 - H.263 OBMC & 4MV support
689 - H.263 alternative inter vlc support
691 - H.263 slice structured mode
692 - interlaced DCT support for MPEG-2 encoding
693 - stuffing to stay above min_bitrate
694 - MB type & QP visualization
695 - frame stepping for ffplay
696 - interlaced motion estimation
697 - alternate scantable support
698 - SVCD scan offset support
701 - quantizer noise shaping
702 - G.726 ADPCM audio codec
704 - multithreaded/SMP motion estimation
705 - multithreaded/SMP encoding for MPEG-1/MPEG-2/MPEG-4/H.263
706 - multithreaded/SMP decoding for MPEG-2
708 - Metrowerks CodeWarrior suppport
709 - H.263+ custom pcf support
710 - nicer output for 'ffmpeg -formats'
712 - SGI image format, encoding and decoding
713 - H.264 loop filter support
714 - H.264 CABAC support
715 - nicer looking arrows for the motion vector visualization
716 - improved VCD support
717 - audio timestamp drift compensation
718 - MPEG-2 YUV 422/444 support
719 - polyphase kaiser windowed sinc and blackman nuttall windowed sinc audio resample
720 - better image scaling
722 - correctly interleave packets during encoding
723 - VIS optimized motion compensation
724 - intra_dc_precision>0 encoding support
725 - support reuse of motion vectors/MB types/field select values of the source video
726 - more accurate deblock filter
728 - many optimizations and bugfixes
729 - FunCom ISS audio file demuxer and according ADPCM decoding
734 - MPEG-2 video encoding (Michael)
735 - Id RoQ playback subsystem (Mike Melanson and Tim Ferguson)
736 - Wing Commander III Movie (.mve) file playback subsystem (Mike Melanson
738 - Xan DPCM audio decoder (Mario Brito)
739 - Interplay MVE playback subsystem (Mike Melanson)
740 - Duck DK3 and DK4 ADPCM audio decoders (Mike Melanson)
745 - RealAudio 1.0 (14_4) and 2.0 (28_8) native decoders. Author unknown, code from mplayerhq
746 (originally from public domain player for Amiga at http://www.honeypot.net/audio)
747 - current version now also compiles with older GCC (Fabrice)
748 - 4X multimedia playback system including 4xm file demuxer (Mike
749 Melanson), and 4X video and audio codecs (Michael)
750 - Creative YUV (CYUV) decoder (Mike Melanson)
751 - FFV1 codec (our very simple lossless intra only codec, compresses much better
752 than HuffYUV) (Michael)
753 - ASV1 (Asus), H.264, Intel indeo3 codecs have been added (various)
754 - tiny PNG encoder and decoder, tiny GIF decoder, PAM decoder (PPM with
755 alpha support), JPEG YUV colorspace support. (Fabrice Bellard)
756 - ffplay has been replaced with a newer version which uses SDL (optionally)
757 for multiplatform support (Fabrice)
758 - Sorenson Version 3 codec (SVQ3) support has been added (decoding only) - donated
760 - AMR format has been added (Johannes Carlsson)
761 - 3GP support has been added (Johannes Carlsson)
762 - VP3 codec has been added (Mike Melanson)
763 - more MPEG-1/2 fixes
764 - better multiplatform support, MS Visual Studio fixes (various)
765 - AltiVec optimizations (Magnus Damn and others)
766 - SH4 processor support has been added (BERO)
767 - new public interfaces (avcodec_get_pix_fmt) (Roman Shaposhnick)
768 - VOB streaming support (Brian Foley)
769 - better MP3 autodetection (Andriy Rysin)
770 - qpel encoding (Michael)
771 - 4mv+b frames encoding finally fixed (Michael)
772 - chroma ME (Michael)
773 - 5 comparison functions for ME (Michael)
774 - B-frame encoding speedup (Michael)
775 - WMV2 codec (unfinished - Michael)
776 - user specified diamond size for EPZS (Michael)
777 - Playstation STR playback subsystem, still experimental (Mike and Michael)
778 - ASV2 codec (Michael)
779 - CLJR decoder (Alex)
781 .. And lots more new enhancements and fixes.
786 - completely new integer only MPEG audio layer 1/2/3 decoder rewritten
788 - Recoded DCT and motion vector search with gcc (no longer depends on nasm)
789 - fix quantization bug in AC3 encoder
790 - added PCM codecs and format. Corrected WAV/AVI/ASF PCM issues
791 - added prototype ffplay program
792 - added GOB header parsing on H.263/H.263+ decoder (Juanjo)
793 - bug fix on MCBPC tables of H.263 (Juanjo)
794 - bug fix on DC coefficients of H.263 (Juanjo)
795 - added Advanced Prediction Mode on H.263/H.263+ decoder (Juanjo)
796 - now we can decode H.263 streams found in QuickTime files (Juanjo)
797 - now we can decode H.263 streams found in VIVO v1 files(Juanjo)
798 - preliminary RTP "friendly" mode for H.263/H.263+ coding. (Juanjo)
799 - added GOB header for H.263/H.263+ coding on RTP mode (Juanjo)
800 - now H.263 picture size is returned on the first decoded frame (Juanjo)
801 - added first regression tests
802 - added MPEG-2 TS demuxer
803 - new demux API for libav
804 - more accurate and faster IDCT (Michael)
805 - faster and entropy-controlled motion search (Michael)
806 - two pass video encoding (Michael)
807 - new video rate control (Michael)
808 - added MSMPEG4V1, MSMPEGV2 and WMV1 support (Michael)
809 - great performance improvement of video encoders and decoders (Michael)
810 - new and faster bit readers and vlc parsers (Michael)
811 - high quality encoding mode: tries all macroblock/VLC types (Michael)
812 - added DV video decoder
813 - preliminary RTP/RTSP support in ffserver and libavformat
814 - H.263+ AIC decoding/encoding support (Juanjo)
815 - VCD MPEG-PS mode (Juanjo)
816 - PSNR stuff (Juanjo)
817 - simple stats output (Juanjo)
818 - 16-bit and 15-bit RGB/BGR/GBR support (Bisqwit)
823 - some header fixes (Zdenek Kabelac <kabi at informatics.muni.cz>)
824 - many MMX optimizations (Nick Kurshev <nickols_k at mail.ru>)
825 - added configure system (actually a small shell script)
826 - added MPEG audio layer 1/2/3 decoding using LGPL'ed mpglib by
827 Michael Hipp (temporary solution - waiting for integer only
829 - fixed VIDIOCSYNC interrupt
830 - added Intel H.263 decoding support ('I263' AVI fourCC)
831 - added Real Video 1.0 decoding (needs further testing)
832 - simplified image formats again. Added PGM format (=grey
833 pgm). Renamed old PGM to PGMYUV.
834 - fixed msmpeg4 slice issues (tell me if you still find problems)
835 - fixed OpenDivX bugs with newer versions (added VOL header decoding)
836 - added support for MPlayer interface
837 - added macroblock skip optimization
838 - added MJPEG decoder
839 - added mmx/mmxext IDCT from libmpeg2
840 - added pgmyuvpipe, ppm, and ppm_pipe formats (original patch by Celer
841 <celer at shell.scrypt.net>)
842 - added pixel format conversion layer (e.g. for MJPEG or PPM)
843 - added deinterlacing option
845 - MPEG-4 vol header fixes (Jonathan Marsden <snmjbm at pacbell.net>)
846 - ARM optimizations (Lionel Ulmer <lionel.ulmer at free.fr>).
847 - Windows porting of file converter
848 - added MJPEG raw format (input/ouput)
849 - added JPEG image format support (input/output)
854 - fixed some std header definitions (Bjorn Lindgren
855 <bjorn.e.lindgren at telia.com>).
856 - added MPEG demuxer (MPEG-1 and 2 compatible).
858 - added prototype RM demuxer
859 - added AC3 decoding (done with libac3 by Aaron Holtzman)
860 - added decoding codec parameter guessing (.e.g. for MPEG, because the
861 header does not include them)
862 - fixed header generation in MPEG-1, AVI and ASF muxer: wmplayer can now
863 play them (only tested video)
864 - fixed H.263 white bug
865 - fixed phase rounding in img resample filter
866 - add MMX code for polyphase img resample filter
867 - added CPU autodetection
868 - added generic title/author/copyright/comment string handling (ASF and RM
870 - added SWF demux to extract MP3 track (not usable yet because no MP3
872 - added fractional frame rate support
873 - codecs are no longer searched by read_header() (should fix ffserver
879 - BGR24 patch (initial patch by Jeroen Vreeken <pe1rxq at amsat.org>)
880 - fixed raw yuv output
881 - added motion rounding support in MPEG-4
882 - fixed motion bug rounding in MSMPEG4
883 - added B-frame handling in video core
884 - added full MPEG-1 decoding support
885 - added partial (frame only) MPEG-2 support
886 - changed the FOURCC code for H.263 to "U263" to be able to see the
887 +AVI/H.263 file with the UB Video H.263+ decoder. MPlayer works with
888 this +codec ;) (JuanJo).
889 - Halfpel motion estimation after MB type selection (JuanJo)
890 - added pgm and .Y.U.V output format
891 - suppressed 'img:' protocol. Simply use: /tmp/test%d.[pgm|Y] as input or
893 - added pgmpipe I/O format (original patch from Martin Aumueller
894 <lists at reserv.at>, but changed completely since we use a format
895 instead of a protocol)
900 - added H.263/MPEG-4/MSMPEG4 decoding support. MPEG-4 decoding support
901 (for OpenDivX) is almost complete: 8x8 MVs and rounding are
902 missing. MSMPEG4 support is complete.
903 - added prototype MPEG-1 decoder. Only I- and P-frames handled yet (it
904 can decode ffmpeg MPEGs :-)).
905 - added libavcodec API documentation (see apiexample.c).
906 - fixed image polyphase bug (the bottom of some images could be
908 - added support for non clipped motion vectors (decoding only)
909 and image sizes non-multiple of 16
910 - added support for AC prediction (decoding only)
911 - added file overwrite confirmation (can be disabled with -y)
912 - added custom size picture to H.263 using H.263+ (Juanjo)
917 - added MSMPEG4 (aka DivX) compatible encoder. Changed default codec
918 of AVI and ASF to DIV3.
919 - added -me option to set motion estimation method
920 (default=log). suppressed redundant -hq option.
921 - added options -acodec and -vcodec to force a given codec (useful for
924 - improved dct_quantize speed
925 - factorized some motion estimation code
930 - removing grab code from ffserver and moved it to ffmpeg. Added
931 multistream support to ffmpeg.
932 - added timeshifting support for live feeds (option ?date=xxx in the
934 - added high quality image resize code with polyphase filter (need
935 mmx/see optimization). Enable multiple image size support in ffserver.
936 - added multi live feed support in ffserver
937 - suppressed master feature from ffserver (it should be done with an
938 external program which opens the .ffm url and writes it to another
940 - added preliminary support for video stream parsing (WAV and AVI half
941 done). Added proper support for audio/video file conversion in
943 - added preliminary support for video file sending from ffserver
944 - redesigning I/O subsystem: now using URL based input and output
946 - added WAV format support
947 - added "tty user interface" to ffmpeg to stop grabbing gracefully
948 - added MMX/SSE optimizations to SAD (Sums of Absolutes Differences)
949 (Juan J. Sierralta P. a.k.a. "Juanjo" <juanjo at atmlab.utfsm.cl>)
950 - added MMX DCT from mpeg2_movie 1.5 (Juanjo)
951 - added new motion estimation algorithms, log and phods (Juanjo)
952 - changed directories: libav for format handling, libavcodec for
958 - added stereo in MPEG audio encoder
963 - added 'high quality' mode which use motion vectors. It can be used in
964 real time at low resolution.
965 - fixed rounding problems which caused quality problems at high
966 bitrates and large GOP size
969 version 0.3.2: small fixes
975 version 0.3.1: added avi/divx support
978 - added MPEG-4 codec compatible with OpenDivX. It is based on the H.263 codec
979 - added sound for flash format (not tested)
982 version 0.3: initial public release