1 Entries are sorted chronologically from oldest to youngest within each release,
2 releases are sorted from youngest to oldest.
5 - aliases and defaults for Ogg subtypes (opus, spx)
6 - HEVC/H.265 RTP payload format (draft v6) packetizer and depacketizer
7 - avplay now exits by default at the end of playback
8 - XCB-based screen-grabber
9 - creating DASH compatible fragmented MP4, MPEG-DASH segmenting muxer
10 - H.261 RTP payload format (RFC 4587) depacketizer and experimental packetizer
13 - OpenH264 encoder wrapper
14 - Support DNx100 (960x720@8)
15 - Direct3D11-accelerated decoding
16 - DXVA2-accelerated HEVC decoding
17 - AAC ELD 480 decoding
18 - Intel QSV-accelerated H.264 decoding
19 - DSS SP decoder and DSS demuxer
20 - RTP depacketizer for AC3 payload format (RFC 4184)
21 - RTP depacketizer for loss tolerant payload format for MP3 audio (RFC 5219)
22 - RTP depacketizer for DV (RFC 6469)
24 - RTP depacketization of T.140 text (RFC 4103)
25 - VP9 RTP payload format (draft 0) experimental depacketizer
27 - DTS lossless extension (XLL) decoding (not lossless, disabled by default)
28 - Intel QSV-accelerated H.264 encoding
29 - MMAL-accelerated H.264 decoding
30 - DTS decoding through libdcadec
31 - Canopus HQ/HQA decoder
32 - Automatically rotate videos based on metadata in avconv
33 - improved Quickdraw compatibility
34 - NVIDIA NVENC-accelerated H.264 and HEVC encoding support
35 - Multipart JPEG demuxer
36 - Support the extended vp9 profiles in the libvpx wrapper
37 - Hap decoder and encoder
38 - DirectDraw Surface image/texture decoder
39 - rewritten ASF demuxer
40 - Go2Meeting decoding support
41 - Intel QSV-accelerated MPEG-2 video and HEVC encoding
42 - bitstream filter for converting HEVC from MP4 to Annex B
43 - Intel QSV-accelerated MPEG-2 video and HEVC decoding
44 - Support DNx100 (1440x1080@8)
46 - Screenpresso SPV1 decoding
47 - zero-copy Intel QSV transcoding in avconv
48 - libkvazaar HEVC encoder
49 - innoHeim/Rsupport Screen Capture Codec decoder
50 - support encoding 16-bit RLE SGI images
51 - support Apple AVFoundation video capture
52 - G.723.1 muxer and encoder
54 - VAAPI-accelerated format conversion and scaling
55 - libnpp/CUDA-accelerated format conversion and scaling
56 - VAAPI-accelerate H.264/HEVC/MJPEG encoding
57 - Generic OpenMAX IL encoder with support for Raspberry Pi
58 - MMAL-accelerated MPEG-2 and VC-1 decoding
61 - Duck TrueMotion 2.0 Real Time decoder
62 - Intel QSV video scaling and deinterlacing filter
63 - Support MOV with multiple sample description tables
64 - OpenH264 decoder wrapper
65 - Removed the legacy X11 screen grabber, use XCB instead
66 - HDCD decoding filter through libhdcd
71 - shuffleplanes filter
72 - replaygain data export
73 - Alias PIX image encoder and decoder
74 - BRender PIX image decoder
75 - Amazing Studio PAF playback support
77 - BMP standalone parser
78 - OpenEXR image decoder
79 - support encoding and decoding 4-channel SGI images
80 - support decoding 16-bit RLE SGI images
82 - LucasArts SMUSH SANM video decoder
83 - LucasArts SMUSH VIMA audio decoder (ADPCM)
84 - LucasArts SMUSH demuxer
85 - MP2 encoding via TwoLAME
87 - Silicon Graphics RLE 8-bit video decoder
88 - Silicon Graphics Motion Video Compressor 1 & 2 decoder
89 - Silicon Graphics Movie demuxer
90 - On2 AVC (Audio for Video) decoder
91 - support for decoding through DXVA2 in avconv
92 - libbs2b-based stereo-to-binaural audio filter
94 - display matrix export and rotation API
95 - drop avserver, it was unmaintained for years and largely broken
97 - request Icecast metadata by default
98 - support for using metadata in stream specifiers in avtools
104 - support ID3v2 tags in ASF files
105 - reference-counting for AVFrame and AVPacket data
106 - avconv now fails when input options are used for output file
108 - avconv options -filter_script and -filter_complex_script, which allow a
109 filtergraph description to be read from a file
110 - uniform options syntax across all filters
113 - asetpts filter (same as setpts, but for audio)
114 - trim and atrim filters
115 - avconv -t and -ss (output-only) options are now sample-accurate when
117 - Matroska muxer can now put the index at the beginning of the file.
118 - avconv -deinterlace option removed, the yadif filter should be used instead
119 - Apple Intermediate Codec decoder
120 - Escape 130 video decoder
121 - support for slice multithreading in libavfilter
122 - VC-1 interlaced B-frame support
123 - support for WavPack muxing (raw and in Matroska)
125 - WavPack encoding through libwavpack
126 - Added the -n parameter to avconv
128 - when transcoding with avconv (i.e. not streamcopying), -ss is now accurate
129 even when used as an input option. Previous behavior can be restored with
130 the -noaccurate_seek option.
131 - avconv -t option can now be used for inputs, to limit the duration of
132 data read from an input file
133 - Voxware MetaSound decoder
135 - Error Resilient AAC syntax (ER AAC LC) decoding
136 - Low Delay AAC (ER AAC LD) decoding
137 - mux chapters in ASF files
138 - Opus in Ogg demuxing
139 - Enhanced Low Delay AAC (ER AAC ELD) decoding (no LD SBR support)
141 - HNM version 4 demuxer and video decoder
143 - raw HEVC, HEVC in MOV/MP4, HEVC in Matroska, HEVC in MPEG-TS demuxing
144 - remove avplay -vismv option, which has not worked for a long time
146 - setsar/setdar filters now support variables in ratio expressions
147 - dar variable in the scale filter now returns the actual DAR (i.e. a * sar)
149 - support for decoding through VDPAU in avconv (the -hwaccel option)
150 - remove mp3_header_(de)compress bitstream filters
151 - stereoscopic 3d metadata handling
152 - png standalone parser
153 - WebP encoding via libwebp
156 - Mirillis FIC video decoder
158 - compand audio filter
162 - av_basename and av_dirname
163 - adobe and limelight publisher authentication in RTMP
164 - VDPAU hardware acceleration through normal hwaccel
169 - ashowinfo audio filter
170 - 24-bit FLAC encoding
171 - audio volume filter
172 - deprecated the avconv -vol option. the volume filter is to be used instead.
173 - multi-channel ALAC encoding up to 7.1
174 - TAK demuxer, parser, and decoder
175 - adaptive frame-level multithreading for H.264
179 - metadata (INFO tag) support in WAV muxer
180 - support for building DLLs using MSVC
181 - remove avserver daemon mode
182 - support building on the Plan 9 operating system
183 - ffv1: support version 1.3
188 - XWD encoder and decoder
189 - Support for fragmentation in the mov/mp4 muxer
190 - ISMV (Smooth Streaming) muxer
191 - CDXL demuxer and decoder
192 - Apple ProRes encoder
193 - Sun Rasterfile Encoder
195 - ID3v2 attached pictures reading and writing
196 - WMA Lossless decoder
198 - RealAudio Lossless decoder
200 - drop support for avconv without libavfilter
201 - add libavresample audio conversion library
202 - audio filters support in libavfilter and avconv
206 - avprobe output is now standard INI or JSON. The old format can still
207 be used with -of old.
208 - Indeo Audio decoder
209 - channelsplit audio filter
210 - RTMPT protocol support
211 - iLBC encoding/decoding via libilbc
212 - Microsoft Screen 1 decoder
214 - audio channel mapping filter
215 - Microsoft ATC Screen decoder
217 - TechSmith Screen Codec 2 decoder
218 - AAC encoding via libfdk-aac
219 - Microsoft Expression Encoder Screen decoder
220 - RTMPS protocol support
221 - RTMPTS protocol support
222 - JPEG 2000 encoding support through OpenJPEG
223 - G.723.1 demuxer and decoder
224 - RTMPE protocol support
225 - RTMPTE protocol support
226 - Canopus Lossless Codec decoder
227 - avconv -shortest option is now per-output file,
228 -pass and -passlogfile are now per-output stream
230 - Microsoft Screen 2 decoder
231 - RTP depacketization of JPEG
232 - Smooth Streaming live segmenter muxer
233 - RTP packetization of JPEG
234 - Opus decoder and encoder using libopus
235 - remove -same_quant, it hasn't worked for years
236 - support for building with MSVC
247 - Automatic thread count based on detection number of (available) CPU cores
248 - Deprecate libpostproc. If desired, the switch --enable-postproc will
249 enable it but it may be removed in a later Libav release.
250 - rv34: frame-level multi-threading
251 - optimized iMDCT transform on x86 using SSE for for mpegaudiodec
257 - Flash Screen Video 2 decoder
258 - ffplay/ffprobe/ffserver renamed to avplay/avprobe/avserver
259 - ffmpeg deprecated, added avconv, which is almost the same for now, except
260 for a few incompatible changes in the options, which will hopefully make them
261 easier to use. The changes are:
262 * The options placement is now strictly enforced! While in theory the
263 options for ffmpeg should be given in [input options] -i INPUT [output
264 options] OUTPUT order, in practice it was possible to give output options
265 before the -i and it mostly worked. Except when it didn't - the behavior was
266 a bit inconsistent. In avconv, it is not possible to mix input and output
267 options. All non-global options are reset after an input or output filename.
268 * All per-file options are now truly per-file - they apply only to the next
269 input or output file and specifying different values for different files
270 will now work properly (notably -ss and -t options).
271 * All per-stream options are now truly per-stream - it is possible to
272 specify which stream(s) should a given option apply to. See the Stream
273 specifiers section in the avconv manual for details.
274 * In ffmpeg some options (like -newvideo/-newaudio/...) are irregular in the
275 sense that they're specified after the output filename instead of before,
276 like all other options. In avconv this irregularity is removed, all options
277 apply to the next input or output file.
278 * -newvideo/-newaudio/-newsubtitle options were removed. Not only were they
279 irregular and highly confusing, they were also redundant. In avconv the -map
280 option will create new streams in the output file and map input streams to
281 them. E.g. avconv -i INPUT -map 0 OUTPUT will create an output stream for
282 each stream in the first input file.
283 * The -map option now has slightly different and more powerful syntax:
284 + Colons (':') are used to separate file index/stream type/stream index
285 instead of dots. Comma (',') is used to separate the sync stream instead
286 of colon.. This is done for consistency with other options.
287 + It's possible to specify stream type. E.g. -map 0:a:2 creates an
288 output stream from the third input audio stream.
289 + Omitting the stream index now maps all the streams of the given type,
290 not just the first. E.g. -map 0:s creates output streams for all the
291 subtitle streams in the first input file.
292 + Since -map can now match multiple streams, negative mappings were
293 introduced. Negative mappings disable some streams from an already
294 defined map. E.g. '-map 0 -map -0:a:1' means 'create output streams for
295 all the stream in the first input file, except for the second audio
297 * There is a new option -c (or -codec) for choosing the decoder/encoder to
298 use, which allows to precisely specify target stream(s) consistently with
299 other options. E.g. -c:v lib264 sets the codec for all video streams, -c:a:0
300 libvorbis sets the codec for the first audio stream and -c copy copies all
301 the streams without reencoding. Old -vcodec/-acodec/-scodec options are now
303 * It is now possible to precisely specify which stream should an AVOption
304 apply to. E.g. -b:v:0 2M sets the bitrate for the first video stream, while
305 -b:a 128k sets the bitrate for all audio streams. Note that the old -ab 128k
306 syntax is deprecated and will stop working soon.
307 * -map_chapters now takes only an input file index and applies to the next
308 output file. This is consistent with how all the other options work.
309 * -map_metadata now takes only an input metadata specifier and applies to
310 the next output file. Output metadata specifier is now part of the option
311 name, similarly to the AVOptions/map/codec feature above.
312 * -metadata can now be used to set metadata on streams and chapters, e.g.
313 -metadata:s:1 language=eng sets the language of the first stream to 'eng'.
314 This made -vlang/-alang/-slang options redundant, so they were removed.
315 * -qscale option now uses stream specifiers and applies to all streams, not
316 just video. I.e. plain -qscale number would now apply to all streams. To get
317 the old behavior, use -qscale:v. Also there is now a shortcut -q for -qscale
318 and -aq is now an alias for -q:a.
319 * -vbsf/-absf/-sbsf options were removed and replaced by a -bsf option which
320 uses stream specifiers. Use -bsf:v/a/s instead of the old options.
321 * -itsscale option now uses stream specifiers, so its argument is only the
323 * -intra option was removed, use -g 0 for the same effect.
324 * -psnr option was removed, use -flags +psnr for the same effect.
325 * -vf option is now an alias to the new -filter option, which uses stream specifiers.
326 * -vframes/-aframes/-dframes options are now aliases to the new -frames option.
327 * -vtag/-atag/-stag options are now aliases to the new -tag option.
329 - Windows Media Image decoder
333 - libcdio-paranoia input device for audio CD grabbing
335 - Apple ProRes decoder
336 - CELT in Ogg demuxing
337 - VC-1 interlaced decoding
338 - lut, lutrgb, and lutyuv filters
341 - Speex encoding via libspeex
342 - 4:2:2 H.264 decoding support
343 - 4:2:2 and 4:4:4 H.264 encoding with libx264
344 - Pulseaudio input device
345 - replacement Indeo 3 decoder
346 - TLS/SSL and HTTPS protocol support
347 - AVOptions API rewritten and documented
348 - most of CODEC_FLAG2_*, some CODEC_FLAG_* and many codec-specific fields in
349 AVCodecContext deprecated. Codec private options should be used instead.
350 - Properly working defaults in libx264 wrapper, support for native presets.
351 - Encrypted OMA files support
352 - Discworld II BMV decoding support
354 - OS X Video Decoder Acceleration (VDA) support
355 - CRI ADX audio format muxer and demuxer
356 - Playstation Portable PMP format demuxer
357 - PCM format support in OMA demuxer
359 - Dxtory capture format decoder
360 - v410 QuickTime uncompressed 4:4:4 10-bit encoder and decoder
362 - Simple segmenting muxer
369 - E-AC-3 audio encoder
370 - ac3enc: add channel coupling support
371 - floating-point sample format support for (E-)AC-3, DCA, AAC, Vorbis decoders
372 - H.264/MPEG frame-level multithreading
373 - av_metadata_* functions renamed to av_dict_* and moved to libavutil
374 - 4:4:4 H.264 decoding support
375 - 10-bit H.264 optimizations for x86
376 - bump libswscale for recently reported ABI break
381 - VP8 frame-level multithreading
382 - NEON optimizations for VP8
383 - removed a lot of deprecated API cruft
384 - FFT and IMDCT optimizations for AVX (Sandy Bridge) processors
386 - SMPTE 302M AES3 audio decoder
387 - ffmpeg no longer quits after the 'q' key is pressed; use 'ctrl+c' instead
388 - 9 bits and 10 bits per sample support in the H.264 decoder
393 - WebM support in Matroska de/muxer
394 - low overhead Ogg muxing
396 - VP8 de/encoding via libvpx
397 - Demuxer for On2's IVF format
398 - Pictor/PC Paint decoder
400 - libfaad2 wrapper removed
401 - DTS-ES extension (XCh) decoding support
403 - RTSP tunneling over HTTP
404 - RTP depacketization of SVQ3
405 - -strict inofficial replaced by -strict unofficial
406 - ffplay -exitonkeydown and -exitonmousedown options added
407 - native GSM / GSM MS decoder
408 - RTP depacketization of QDM2
409 - ANSI/ASCII art playback system
410 - Lego Mindstorms RSO de/muxer
411 - SubRip subtitle file muxer and demuxer
412 - Chinese AVS encoding via libxavs
413 - ffprobe -show_packets option added
414 - RTP packetization of Theora and Vorbis
415 - RTP depacketization of MP4A-LATM
416 - RTP packetization and depacketization of VP8
418 - Apple HTTP Live Streaming demuxer
421 - G.722 ADPCM audio encoder/decoder
424 - frei0r wrapper filter
425 - change crop filter syntax to width:height:x:y
426 - make the crop filter accept parametric expressions
427 - make ffprobe accept AVFormatContext options
430 - Demuxer for Leitch/Harris' VR native stream format (LXF)
431 - RTP depacketization of the X-QT QuickTime format
432 - SAP (Session Announcement Protocol, RFC 2974) muxer and demuxer
434 - ffmpeg -crop* options removed
435 - transpose filter added
436 - ffmpeg -force_key_frames option added
437 - demuxer for receiving raw rtp:// URLs without an SDP description
438 - single stream LATM/LOAS decoder
439 - setpts filter added
440 - Win64 support for optimized x86 assembly functions
441 - MJPEG/AVI1 to JPEG/JFIF bitstream filter
442 - ASS subtitle encoder and decoder
443 - IEC 61937 encapsulation for E-AC-3, TrueHD, DTS-HD (for HDMI passthrough)
444 - overlay filter added
445 - rename aspect filter to setdar, and pixelaspect to setsar
447 - Mobotix .mxg demuxer
448 - frei0r source added
449 - hqdn3d filter added
450 - RTP depacketization of QCELP
452 - gradfun filter added
454 - replace the ocv_smooth filter with a more generic ocv filter
455 - Windows Televison (WTV) demuxer
456 - FFmpeg metadata format muxer and demuxer
457 - SubRip (srt) subtitle decoder
458 - floating-point AC-3 encoder added
460 - ffmpeg -copytb option added
462 - Wing Commander IV movies decoder added
464 - Bink version 'b' audio and video decoder
465 - Bitmap Brothers JV playback system
466 - Apple HTTP Live Streaming protocol handler
467 - sndio support for playback and record
468 - Linux framebuffer input device added
469 - Chronomaster DFA decoder
470 - Mobotix MxPEG decoder
471 - AAC encoding via libvo-aacenc
472 - AMR-WB encoding via libvo-amrwbenc
474 - fieldorder video filter added
479 - PB-frame decoding for H.263
480 - deprecated vhook subsystem removed
481 - deprecated old scaler removed
483 - Alpha channel scaler
485 - RTP packetization of H.263
486 - RTP packetization of AMR
487 - RTP depacketization of Vorbis
488 - CorePNG decoding support
489 - Cook multichannel decoding support
490 - introduced avlanguage helpers in libavformat
491 - 8088flex TMV demuxer and decoder
492 - per-stream language-tags extraction in asfdec
493 - V210 decoder and encoder
494 - remaining GPL parts in AC-3 decoder converted to LGPL
496 - SoX native format muxer and demuxer
497 - AMR-NB decoding/encoding, AMR-WB decoding via OpenCORE libraries
499 - Electronic Arts Madcow decoder
500 - DivX (XSUB) subtitle encoder
501 - nonfree libamr support for AMR-NB/WB decoding/encoding removed
502 - experimental AAC encoder
503 - RTP depacketization of ASF and RTSP from WMS servers
504 - RTMP support in libavformat
505 - noX handling for OPT_BOOL X options
507 - IEC-61937 compatible Muxer
509 - Bluray (PGS) subtitle decoder
510 - LPCM support in MPEG-TS (HDMV RID as found on Blu-ray disks)
512 - Core Audio Format demuxer
514 - MD STUDIO audio demuxer
515 - RF64 support in WAV demuxer
516 - MPEG-4 Audio Lossless Coding (ALS) decoder
517 - -formats option split into -formats, -codecs, -bsfs, and -protocols
519 - CDG demuxer and decoder
521 - Auravision Aura 1 and 2 decoders
522 - Deluxe Paint Animation playback system
524 - Adobe Filmstrip muxer and demuxer
525 - RTP depacketization of H.263
526 - Bink demuxer and audio/video decoders
527 - enable symbol versioning by default for linkers that support it
528 - IFF PBM/ILBM bitmap decoder
531 - RTP depacketization of AMR
537 - Kega Game Video (KGV1) decoder
538 - VorbisComment writing for FLAC, Ogg FLAC and Ogg Speex files
539 - RTP depacketization of Theora
540 - HTTP Digest authentication
541 - RTMP/RTMPT/RTMPS/RTMPE/RTMPTE protocol support via librtmp
542 - Psygnosis YOP demuxer and video decoder
543 - spectral extension support in the E-AC-3 decoder
544 - unsharp video filter
545 - RTP hinting in the mov/3gp/mp4 muxer
546 - Dirac in Ogg demuxing
547 - seek to keyframes in Ogg
548 - 4:2:2 and 4:4:4 Theora decoding
549 - 35% faster VP3/Theora decoding
550 - faster AAC decoding
551 - faster H.264 decoding
552 - RealAudio 1.0 (14.4K) encoder
557 - DV50 AKA DVCPRO50 encoder, decoder, muxer and demuxer
558 - TechSmith Camtasia (TSCC) video decoder
559 - IBM Ultimotion (ULTI) video decoder
560 - Sierra Online audio file demuxer and decoder
561 - Apple QuickDraw (qdrw) video decoder
562 - Creative ADPCM audio decoder (16 bits as well as 8 bits schemes)
563 - Electronic Arts Multimedia (WVE/UV2/etc.) file demuxer
564 - Miro VideoXL (VIXL) video decoder
565 - H.261 video encoder
567 - Nullsoft Video (NSV) file demuxer
568 - Shorten audio decoder
570 - Apple Lossless Audio Codec (ALAC) decoder
571 - Winnov WNV1 video decoder
572 - Autodesk Animator Studio Codec (AASC) decoder
573 - Indeo 2 video decoder
574 - Fraps FPS1 video decoder
575 - Snow video encoder/decoder
576 - Sonic audio encoder/decoder
577 - Vorbis audio decoder
578 - Macromedia ADPCM decoder
579 - Duck TrueMotion 2 video decoder
580 - support for decoding FLX and DTA extensions in FLIC files
581 - H.264 custom quantization matrices support
582 - ffserver fixed, it should now be usable again
584 - Real Cooker audio decoder
585 - TrueSpeech audio decoder
586 - WMA2 audio decoder fixed, now all files should play correctly
587 - RealAudio 14.4 and 28.8 decoders fixed
589 - build system improvements
590 - tabs and trailing whitespace removed from the codebase
591 - CamStudio video decoder
592 - AIFF/AIFF-C audio format, encoding and decoding
593 - ADTS AAC file reading and writing
594 - Creative VOC file reading and writing
595 - American Laser Games multimedia (*.mm) playback system
596 - Zip Motion Blocks Video decoder
597 - improved Theora/VP3 decoder
598 - True Audio (TTA) decoder
599 - AVS demuxer and video decoder
601 - Smacker demuxer and decoder
602 - NuppelVideo/MythTV demuxer and RTjpeg decoder
604 - MPEG-2 intra VLC support
605 - MPEG-2 4:2:2 encoder
606 - Flash Screen Video decoder
608 - Chinese AVS decoder
611 - VC-1/WMV3/WMV9 video decoder
614 - VMware video decoder
617 - WavPack lossless audio decoder
618 - Targa (.TGA) picture decoder
619 - Vorbis audio encoder
620 - Delphine Software .cin demuxer/audio and video decoder
621 - Tiertex .seq demuxer/video decoder
623 - TIFF picture encoder and decoder
624 - GIF picture decoder
625 - Intel Music Coder decoder
626 - Zip Motion Blocks Video encoder
628 - Flash Screen Video encoder
629 - Theora encoding via libtheora
632 - GSM-MS encoder and decoder
634 - DXA demuxer and decoder
636 - Gamecube movie (.THP) playback system
637 - Blackfin optimizations
638 - Interplay C93 demuxer and video decoder
639 - Bethsoft VID demuxer and video decoder
642 - V.Flash PTX decoder
643 - RoQ muxer, RoQ audio encoder
644 - Renderware TXD demuxer and decoder
645 - extern C declarations for C++ removed from headers
646 - sws_flags command line option
650 - OS/2 support removed and restored again
653 - additional SPARC (VIS) optimizations
655 - slice-based parallel H.264 decoding
656 - Monkey's Audio demuxer and decoder
657 - AMV audio and video decoder
659 - H.264 PAFF decoding
660 - Nellymoser ASAO decoder
661 - Beam Software SIFF demuxer and decoder
662 - libvorbis Vorbis decoding removed in favor of native decoder
663 - IntraX8 (J-Frame) subdecoder for WMV2 and VC-1
664 - Ogg (Theora, Vorbis and FLAC) muxer
665 - The "device" muxers and demuxers are now in a new libavdevice library
666 - PC Paintbrush PCX decoder
667 - Sun Rasterfile decoder
668 - TechnoTrend PVA demuxer
669 - Linux Media Labs MPEG-4 (LMLM4) demuxer
670 - AVM2 (Flash 9) SWF muxer
671 - QT variant of IMA ADPCM encoder
673 - iPod/iPhone compatible mp4 muxer
675 - MSN TCP Webcam stream demuxer
676 - RL2 demuxer / decoder
679 - non-recursive Makefiles
681 - MAXIS EA XA (.xa) demuxer / decoder
685 - Electronic Arts CMV decoder
686 - Motion Pixels Video decoder
687 - Motion Pixels MVI demuxer
688 - removed animated GIF decoder/demuxer
689 - D-Cinema audio muxer
690 - Electronic Arts TGV decoder
691 - Apple Lossless Audio Codec (ALAC) encoder
693 - floating point PCM encoder/decoder
695 - DV100 AKA DVCPRO HD decoder and demuxer
696 - E-AC-3 support added to AC-3 decoder
697 - Nellymoser ASAO encoder
698 - ASS and SSA demuxer and muxer
699 - liba52 wrapper removed
700 - SVQ3 watermark decoding support
701 - Speex decoding via libspeex
702 - Electronic Arts TGQ decoder
704 - QCELP / PureVoice decoder
706 - hybrid WavPack support
707 - R3D REDCODE demuxer
708 - ALSA support for playback and record
709 - Electronic Arts TQI decoder
710 - OpenJPEG based JPEG 2000 decoder
711 - NC (NC4600) camera file demuxer
712 - Gopher client support
714 - generic metadata API
719 - DV encoder, DV muxer
720 - Microsoft RLE video decoder
721 - Microsoft Video-1 decoder
722 - Apple Animation (RLE) decoder
723 - Apple Graphics (SMC) decoder
724 - Apple Video (RPZA) decoder
726 - Sega FILM (CPK) file demuxer
727 - Westwood multimedia support (VQA & AUD files)
728 - Id Quake II CIN playback support
730 - FLIC playback support
731 - RealVideo 2.0 (RV20) decoder
732 - Duck TrueMotion v1 (DUCK) video decoder
733 - Sierra VMD demuxer and video decoder
734 - MSZH and ZLIB decoder support
738 - rate distortion optimal cbp support
739 - rate distorted optimal ac prediction for MPEG-4
740 - rate distorted optimal lambda->qp support
741 - AAC encoding with libfaac
742 - Sunplus JPEG codec (SP5X) support
743 - use Lagrange multiplier instead of QP for ratecontrol
744 - Theora/VP3 decoding support
745 - XA and ADX ADPCM codecs
746 - export MPEG-2 active display area / pan scan
747 - Add support for configuring with IBM XLC
748 - floating point AAN DCT
749 - initial support for zygo video (not complete)
751 - new audio/video parser API
753 - av_read_frame() and av_seek_frame() support
754 - missing last frame fixes
755 - seek by mouse in ffplay
756 - noise reduction of DCT coefficients
757 - H.263 OBMC & 4MV support
758 - H.263 alternative inter vlc support
760 - H.263 slice structured mode
761 - interlaced DCT support for MPEG-2 encoding
762 - stuffing to stay above min_bitrate
763 - MB type & QP visualization
764 - frame stepping for ffplay
765 - interlaced motion estimation
766 - alternate scantable support
767 - SVCD scan offset support
770 - quantizer noise shaping
771 - G.726 ADPCM audio codec
773 - multithreaded/SMP motion estimation
774 - multithreaded/SMP encoding for MPEG-1/MPEG-2/MPEG-4/H.263
775 - multithreaded/SMP decoding for MPEG-2
777 - Metrowerks CodeWarrior suppport
778 - H.263+ custom pcf support
779 - nicer output for 'ffmpeg -formats'
781 - SGI image format, encoding and decoding
782 - H.264 loop filter support
783 - H.264 CABAC support
784 - nicer looking arrows for the motion vector visualization
785 - improved VCD support
786 - audio timestamp drift compensation
787 - MPEG-2 YUV 422/444 support
788 - polyphase kaiser windowed sinc and blackman nuttall windowed sinc audio resample
789 - better image scaling
791 - correctly interleave packets during encoding
792 - VIS optimized motion compensation
793 - intra_dc_precision>0 encoding support
794 - support reuse of motion vectors/MB types/field select values of the source video
795 - more accurate deblock filter
797 - many optimizations and bugfixes
798 - FunCom ISS audio file demuxer and according ADPCM decoding
803 - MPEG-2 video encoding (Michael)
804 - Id RoQ playback subsystem (Mike Melanson and Tim Ferguson)
805 - Wing Commander III Movie (.mve) file playback subsystem (Mike Melanson
807 - Xan DPCM audio decoder (Mario Brito)
808 - Interplay MVE playback subsystem (Mike Melanson)
809 - Duck DK3 and DK4 ADPCM audio decoders (Mike Melanson)
814 - RealAudio 1.0 (14_4) and 2.0 (28_8) native decoders. Author unknown, code from mplayerhq
815 (originally from public domain player for Amiga at http://www.honeypot.net/audio)
816 - current version now also compiles with older GCC (Fabrice)
817 - 4X multimedia playback system including 4xm file demuxer (Mike
818 Melanson), and 4X video and audio codecs (Michael)
819 - Creative YUV (CYUV) decoder (Mike Melanson)
820 - FFV1 codec (our very simple lossless intra only codec, compresses much better
821 than HuffYUV) (Michael)
822 - ASV1 (Asus), H.264, Intel indeo3 codecs have been added (various)
823 - tiny PNG encoder and decoder, tiny GIF decoder, PAM decoder (PPM with
824 alpha support), JPEG YUV colorspace support. (Fabrice Bellard)
825 - ffplay has been replaced with a newer version which uses SDL (optionally)
826 for multiplatform support (Fabrice)
827 - Sorenson Version 3 codec (SVQ3) support has been added (decoding only) - donated
829 - AMR format has been added (Johannes Carlsson)
830 - 3GP support has been added (Johannes Carlsson)
831 - VP3 codec has been added (Mike Melanson)
832 - more MPEG-1/2 fixes
833 - better multiplatform support, MS Visual Studio fixes (various)
834 - AltiVec optimizations (Magnus Damn and others)
835 - SH4 processor support has been added (BERO)
836 - new public interfaces (avcodec_get_pix_fmt) (Roman Shaposhnick)
837 - VOB streaming support (Brian Foley)
838 - better MP3 autodetection (Andriy Rysin)
839 - qpel encoding (Michael)
840 - 4mv+b frames encoding finally fixed (Michael)
841 - chroma ME (Michael)
842 - 5 comparison functions for ME (Michael)
843 - B-frame encoding speedup (Michael)
844 - WMV2 codec (unfinished - Michael)
845 - user specified diamond size for EPZS (Michael)
846 - Playstation STR playback subsystem, still experimental (Mike and Michael)
847 - ASV2 codec (Michael)
848 - CLJR decoder (Alex)
850 .. And lots more new enhancements and fixes.
855 - completely new integer only MPEG audio layer 1/2/3 decoder rewritten
857 - Recoded DCT and motion vector search with gcc (no longer depends on nasm)
858 - fix quantization bug in AC3 encoder
859 - added PCM codecs and format. Corrected WAV/AVI/ASF PCM issues
860 - added prototype ffplay program
861 - added GOB header parsing on H.263/H.263+ decoder (Juanjo)
862 - bug fix on MCBPC tables of H.263 (Juanjo)
863 - bug fix on DC coefficients of H.263 (Juanjo)
864 - added Advanced Prediction Mode on H.263/H.263+ decoder (Juanjo)
865 - now we can decode H.263 streams found in QuickTime files (Juanjo)
866 - now we can decode H.263 streams found in VIVO v1 files(Juanjo)
867 - preliminary RTP "friendly" mode for H.263/H.263+ coding. (Juanjo)
868 - added GOB header for H.263/H.263+ coding on RTP mode (Juanjo)
869 - now H.263 picture size is returned on the first decoded frame (Juanjo)
870 - added first regression tests
871 - added MPEG-2 TS demuxer
872 - new demux API for libav
873 - more accurate and faster IDCT (Michael)
874 - faster and entropy-controlled motion search (Michael)
875 - two pass video encoding (Michael)
876 - new video rate control (Michael)
877 - added MSMPEG4V1, MSMPEGV2 and WMV1 support (Michael)
878 - great performance improvement of video encoders and decoders (Michael)
879 - new and faster bit readers and vlc parsers (Michael)
880 - high quality encoding mode: tries all macroblock/VLC types (Michael)
881 - added DV video decoder
882 - preliminary RTP/RTSP support in ffserver and libavformat
883 - H.263+ AIC decoding/encoding support (Juanjo)
884 - VCD MPEG-PS mode (Juanjo)
885 - PSNR stuff (Juanjo)
886 - simple stats output (Juanjo)
887 - 16-bit and 15-bit RGB/BGR/GBR support (Bisqwit)
892 - some header fixes (Zdenek Kabelac <kabi at informatics.muni.cz>)
893 - many MMX optimizations (Nick Kurshev <nickols_k at mail.ru>)
894 - added configure system (actually a small shell script)
895 - added MPEG audio layer 1/2/3 decoding using LGPL'ed mpglib by
896 Michael Hipp (temporary solution - waiting for integer only
898 - fixed VIDIOCSYNC interrupt
899 - added Intel H.263 decoding support ('I263' AVI fourCC)
900 - added Real Video 1.0 decoding (needs further testing)
901 - simplified image formats again. Added PGM format (=grey
902 pgm). Renamed old PGM to PGMYUV.
903 - fixed msmpeg4 slice issues (tell me if you still find problems)
904 - fixed OpenDivX bugs with newer versions (added VOL header decoding)
905 - added support for MPlayer interface
906 - added macroblock skip optimization
907 - added MJPEG decoder
908 - added mmx/mmxext IDCT from libmpeg2
909 - added pgmyuvpipe, ppm, and ppm_pipe formats (original patch by Celer
910 <celer at shell.scrypt.net>)
911 - added pixel format conversion layer (e.g. for MJPEG or PPM)
912 - added deinterlacing option
914 - MPEG-4 vol header fixes (Jonathan Marsden <snmjbm at pacbell.net>)
915 - ARM optimizations (Lionel Ulmer <lionel.ulmer at free.fr>).
916 - Windows porting of file converter
917 - added MJPEG raw format (input/ouput)
918 - added JPEG image format support (input/output)
923 - fixed some std header definitions (Bjorn Lindgren
924 <bjorn.e.lindgren at telia.com>).
925 - added MPEG demuxer (MPEG-1 and 2 compatible).
927 - added prototype RM demuxer
928 - added AC3 decoding (done with libac3 by Aaron Holtzman)
929 - added decoding codec parameter guessing (.e.g. for MPEG, because the
930 header does not include them)
931 - fixed header generation in MPEG-1, AVI and ASF muxer: wmplayer can now
932 play them (only tested video)
933 - fixed H.263 white bug
934 - fixed phase rounding in img resample filter
935 - add MMX code for polyphase img resample filter
936 - added CPU autodetection
937 - added generic title/author/copyright/comment string handling (ASF and RM
939 - added SWF demux to extract MP3 track (not usable yet because no MP3
941 - added fractional frame rate support
942 - codecs are no longer searched by read_header() (should fix ffserver
948 - BGR24 patch (initial patch by Jeroen Vreeken <pe1rxq at amsat.org>)
949 - fixed raw yuv output
950 - added motion rounding support in MPEG-4
951 - fixed motion bug rounding in MSMPEG4
952 - added B-frame handling in video core
953 - added full MPEG-1 decoding support
954 - added partial (frame only) MPEG-2 support
955 - changed the FOURCC code for H.263 to "U263" to be able to see the
956 +AVI/H.263 file with the UB Video H.263+ decoder. MPlayer works with
957 this +codec ;) (JuanJo).
958 - Halfpel motion estimation after MB type selection (JuanJo)
959 - added pgm and .Y.U.V output format
960 - suppressed 'img:' protocol. Simply use: /tmp/test%d.[pgm|Y] as input or
962 - added pgmpipe I/O format (original patch from Martin Aumueller
963 <lists at reserv.at>, but changed completely since we use a format
964 instead of a protocol)
969 - added H.263/MPEG-4/MSMPEG4 decoding support. MPEG-4 decoding support
970 (for OpenDivX) is almost complete: 8x8 MVs and rounding are
971 missing. MSMPEG4 support is complete.
972 - added prototype MPEG-1 decoder. Only I- and P-frames handled yet (it
973 can decode ffmpeg MPEGs :-)).
974 - added libavcodec API documentation (see apiexample.c).
975 - fixed image polyphase bug (the bottom of some images could be
977 - added support for non clipped motion vectors (decoding only)
978 and image sizes non-multiple of 16
979 - added support for AC prediction (decoding only)
980 - added file overwrite confirmation (can be disabled with -y)
981 - added custom size picture to H.263 using H.263+ (Juanjo)
986 - added MSMPEG4 (aka DivX) compatible encoder. Changed default codec
987 of AVI and ASF to DIV3.
988 - added -me option to set motion estimation method
989 (default=log). suppressed redundant -hq option.
990 - added options -acodec and -vcodec to force a given codec (useful for
993 - improved dct_quantize speed
994 - factorized some motion estimation code
999 - removing grab code from ffserver and moved it to ffmpeg. Added
1000 multistream support to ffmpeg.
1001 - added timeshifting support for live feeds (option ?date=xxx in the
1003 - added high quality image resize code with polyphase filter (need
1004 mmx/see optimization). Enable multiple image size support in ffserver.
1005 - added multi live feed support in ffserver
1006 - suppressed master feature from ffserver (it should be done with an
1007 external program which opens the .ffm url and writes it to another
1009 - added preliminary support for video stream parsing (WAV and AVI half
1010 done). Added proper support for audio/video file conversion in
1012 - added preliminary support for video file sending from ffserver
1013 - redesigning I/O subsystem: now using URL based input and output
1015 - added WAV format support
1016 - added "tty user interface" to ffmpeg to stop grabbing gracefully
1017 - added MMX/SSE optimizations to SAD (Sums of Absolutes Differences)
1018 (Juan J. Sierralta P. a.k.a. "Juanjo" <juanjo at atmlab.utfsm.cl>)
1019 - added MMX DCT from mpeg2_movie 1.5 (Juanjo)
1020 - added new motion estimation algorithms, log and phods (Juanjo)
1021 - changed directories: libav for format handling, libavcodec for
1027 - added stereo in MPEG audio encoder
1032 - added 'high quality' mode which use motion vectors. It can be used in
1033 real time at low resolution.
1034 - fixed rounding problems which caused quality problems at high
1035 bitrates and large GOP size
1038 version 0.3.2: small fixes
1044 version 0.3.1: added avi/divx support
1047 - added MPEG-4 codec compatible with OpenDivX. It is based on the H.263 codec
1048 - added sound for flash format (not tested)
1051 version 0.3: initial public release