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
45 - shuffleplanes filter
46 - replaygain data export
47 - Alias PIX image encoder and decoder
48 - BRender PIX image decoder
49 - Amazing Studio PAF playback support
51 - BMP standalone parser
52 - OpenEXR image decoder
53 - support encoding and decoding 4-channel SGI images
54 - support decoding 16-bit RLE SGI images
56 - LucasArts SMUSH SANM video decoder
57 - LucasArts SMUSH VIMA audio decoder (ADPCM)
58 - LucasArts SMUSH demuxer
59 - MP2 encoding via TwoLAME
61 - Silicon Graphics RLE 8-bit video decoder
62 - Silicon Graphics Motion Video Compressor 1 & 2 decoder
63 - Silicon Graphics Movie demuxer
64 - On2 AVC (Audio for Video) decoder
65 - support for decoding through DXVA2 in avconv
66 - libbs2b-based stereo-to-binaural audio filter
68 - display matrix export and rotation API
69 - drop avserver, it was unmaintained for years and largely broken
71 - request Icecast metadata by default
72 - support for using metadata in stream specifiers in avtools
78 - support ID3v2 tags in ASF files
79 - reference-counting for AVFrame and AVPacket data
80 - avconv now fails when input options are used for output file
82 - avconv options -filter_script and -filter_complex_script, which allow a
83 filtergraph description to be read from a file
84 - uniform options syntax across all filters
87 - asetpts filter (same as setpts, but for audio)
88 - trim and atrim filters
89 - avconv -t and -ss (output-only) options are now sample-accurate when
91 - Matroska muxer can now put the index at the beginning of the file.
92 - avconv -deinterlace option removed, the yadif filter should be used instead
93 - Apple Intermediate Codec decoder
94 - Escape 130 video decoder
95 - support for slice multithreading in libavfilter
96 - VC-1 interlaced B-frame support
97 - support for WavPack muxing (raw and in Matroska)
99 - WavPack encoding through libwavpack
100 - Added the -n parameter to avconv
102 - when transcoding with avconv (i.e. not streamcopying), -ss is now accurate
103 even when used as an input option. Previous behavior can be restored with
104 the -noaccurate_seek option.
105 - avconv -t option can now be used for inputs, to limit the duration of
106 data read from an input file
107 - Voxware MetaSound decoder
109 - Error Resilient AAC syntax (ER AAC LC) decoding
110 - Low Delay AAC (ER AAC LD) decoding
111 - mux chapters in ASF files
112 - Opus in Ogg demuxing
113 - Enhanced Low Delay AAC (ER AAC ELD) decoding (no LD SBR support)
115 - HNM version 4 demuxer and video decoder
117 - raw HEVC, HEVC in MOV/MP4, HEVC in Matroska, HEVC in MPEG-TS demuxing
118 - remove avplay -vismv option, which has not worked for a long time
120 - setsar/setdar filters now support variables in ratio expressions
121 - dar variable in the scale filter now returns the actual DAR (i.e. a * sar)
123 - support for decoding through VDPAU in avconv (the -hwaccel option)
124 - remove mp3_header_(de)compress bitstream filters
125 - stereoscopic 3d metadata handling
126 - png standalone parser
127 - WebP encoding via libwebp
130 - Mirillis FIC video decoder
132 - compand audio filter
136 - av_basename and av_dirname
137 - adobe and limelight publisher authentication in RTMP
138 - VDPAU hardware acceleration through normal hwaccel
143 - ashowinfo audio filter
144 - 24-bit FLAC encoding
145 - audio volume filter
146 - deprecated the avconv -vol option. the volume filter is to be used instead.
147 - multi-channel ALAC encoding up to 7.1
148 - TAK demuxer, parser, and decoder
149 - adaptive frame-level multithreading for H.264
153 - metadata (INFO tag) support in WAV muxer
154 - support for building DLLs using MSVC
155 - remove avserver daemon mode
156 - support building on the Plan 9 operating system
157 - ffv1: support version 1.3
162 - XWD encoder and decoder
163 - Support for fragmentation in the mov/mp4 muxer
164 - ISMV (Smooth Streaming) muxer
165 - CDXL demuxer and decoder
166 - Apple ProRes encoder
167 - Sun Rasterfile Encoder
169 - ID3v2 attached pictures reading and writing
170 - WMA Lossless decoder
172 - RealAudio Lossless decoder
174 - drop support for avconv without libavfilter
175 - add libavresample audio conversion library
176 - audio filters support in libavfilter and avconv
180 - avprobe output is now standard INI or JSON. The old format can still
181 be used with -of old.
182 - Indeo Audio decoder
183 - channelsplit audio filter
184 - RTMPT protocol support
185 - iLBC encoding/decoding via libilbc
186 - Microsoft Screen 1 decoder
188 - audio channel mapping filter
189 - Microsoft ATC Screen decoder
191 - TechSmith Screen Codec 2 decoder
192 - AAC encoding via libfdk-aac
193 - Microsoft Expression Encoder Screen decoder
194 - RTMPS protocol support
195 - RTMPTS protocol support
196 - JPEG 2000 encoding support through OpenJPEG
197 - G.723.1 demuxer and decoder
198 - RTMPE protocol support
199 - RTMPTE protocol support
200 - Canopus Lossless Codec decoder
201 - avconv -shortest option is now per-output file,
202 -pass and -passlogfile are now per-output stream
204 - Microsoft Screen 2 decoder
205 - RTP depacketization of JPEG
206 - Smooth Streaming live segmenter muxer
207 - RTP packetization of JPEG
208 - Opus decoder and encoder using libopus
209 - remove -same_quant, it hasn't worked for years
210 - support for building with MSVC
221 - Automatic thread count based on detection number of (available) CPU cores
222 - Deprecate libpostproc. If desired, the switch --enable-postproc will
223 enable it but it may be removed in a later Libav release.
224 - rv34: frame-level multi-threading
225 - optimized iMDCT transform on x86 using SSE for for mpegaudiodec
231 - Flash Screen Video 2 decoder
232 - ffplay/ffprobe/ffserver renamed to avplay/avprobe/avserver
233 - ffmpeg deprecated, added avconv, which is almost the same for now, except
234 for a few incompatible changes in the options, which will hopefully make them
235 easier to use. The changes are:
236 * The options placement is now strictly enforced! While in theory the
237 options for ffmpeg should be given in [input options] -i INPUT [output
238 options] OUTPUT order, in practice it was possible to give output options
239 before the -i and it mostly worked. Except when it didn't - the behavior was
240 a bit inconsistent. In avconv, it is not possible to mix input and output
241 options. All non-global options are reset after an input or output filename.
242 * All per-file options are now truly per-file - they apply only to the next
243 input or output file and specifying different values for different files
244 will now work properly (notably -ss and -t options).
245 * All per-stream options are now truly per-stream - it is possible to
246 specify which stream(s) should a given option apply to. See the Stream
247 specifiers section in the avconv manual for details.
248 * In ffmpeg some options (like -newvideo/-newaudio/...) are irregular in the
249 sense that they're specified after the output filename instead of before,
250 like all other options. In avconv this irregularity is removed, all options
251 apply to the next input or output file.
252 * -newvideo/-newaudio/-newsubtitle options were removed. Not only were they
253 irregular and highly confusing, they were also redundant. In avconv the -map
254 option will create new streams in the output file and map input streams to
255 them. E.g. avconv -i INPUT -map 0 OUTPUT will create an output stream for
256 each stream in the first input file.
257 * The -map option now has slightly different and more powerful syntax:
258 + Colons (':') are used to separate file index/stream type/stream index
259 instead of dots. Comma (',') is used to separate the sync stream instead
260 of colon.. This is done for consistency with other options.
261 + It's possible to specify stream type. E.g. -map 0:a:2 creates an
262 output stream from the third input audio stream.
263 + Omitting the stream index now maps all the streams of the given type,
264 not just the first. E.g. -map 0:s creates output streams for all the
265 subtitle streams in the first input file.
266 + Since -map can now match multiple streams, negative mappings were
267 introduced. Negative mappings disable some streams from an already
268 defined map. E.g. '-map 0 -map -0:a:1' means 'create output streams for
269 all the stream in the first input file, except for the second audio
271 * There is a new option -c (or -codec) for choosing the decoder/encoder to
272 use, which allows to precisely specify target stream(s) consistently with
273 other options. E.g. -c:v lib264 sets the codec for all video streams, -c:a:0
274 libvorbis sets the codec for the first audio stream and -c copy copies all
275 the streams without reencoding. Old -vcodec/-acodec/-scodec options are now
277 * It is now possible to precisely specify which stream should an AVOption
278 apply to. E.g. -b:v:0 2M sets the bitrate for the first video stream, while
279 -b:a 128k sets the bitrate for all audio streams. Note that the old -ab 128k
280 syntax is deprecated and will stop working soon.
281 * -map_chapters now takes only an input file index and applies to the next
282 output file. This is consistent with how all the other options work.
283 * -map_metadata now takes only an input metadata specifier and applies to
284 the next output file. Output metadata specifier is now part of the option
285 name, similarly to the AVOptions/map/codec feature above.
286 * -metadata can now be used to set metadata on streams and chapters, e.g.
287 -metadata:s:1 language=eng sets the language of the first stream to 'eng'.
288 This made -vlang/-alang/-slang options redundant, so they were removed.
289 * -qscale option now uses stream specifiers and applies to all streams, not
290 just video. I.e. plain -qscale number would now apply to all streams. To get
291 the old behavior, use -qscale:v. Also there is now a shortcut -q for -qscale
292 and -aq is now an alias for -q:a.
293 * -vbsf/-absf/-sbsf options were removed and replaced by a -bsf option which
294 uses stream specifiers. Use -bsf:v/a/s instead of the old options.
295 * -itsscale option now uses stream specifiers, so its argument is only the
297 * -intra option was removed, use -g 0 for the same effect.
298 * -psnr option was removed, use -flags +psnr for the same effect.
299 * -vf option is now an alias to the new -filter option, which uses stream specifiers.
300 * -vframes/-aframes/-dframes options are now aliases to the new -frames option.
301 * -vtag/-atag/-stag options are now aliases to the new -tag option.
303 - Windows Media Image decoder
307 - libcdio-paranoia input device for audio CD grabbing
309 - Apple ProRes decoder
310 - CELT in Ogg demuxing
311 - VC-1 interlaced decoding
312 - lut, lutrgb, and lutyuv filters
315 - Speex encoding via libspeex
316 - 4:2:2 H.264 decoding support
317 - 4:2:2 and 4:4:4 H.264 encoding with libx264
318 - Pulseaudio input device
319 - replacement Indeo 3 decoder
320 - TLS/SSL and HTTPS protocol support
321 - AVOptions API rewritten and documented
322 - most of CODEC_FLAG2_*, some CODEC_FLAG_* and many codec-specific fields in
323 AVCodecContext deprecated. Codec private options should be used instead.
324 - Properly working defaults in libx264 wrapper, support for native presets.
325 - Encrypted OMA files support
326 - Discworld II BMV decoding support
328 - OS X Video Decoder Acceleration (VDA) support
329 - CRI ADX audio format muxer and demuxer
330 - Playstation Portable PMP format demuxer
331 - PCM format support in OMA demuxer
333 - Dxtory capture format decoder
334 - v410 QuickTime uncompressed 4:4:4 10-bit encoder and decoder
336 - Simple segmenting muxer
343 - E-AC-3 audio encoder
344 - ac3enc: add channel coupling support
345 - floating-point sample format support for (E-)AC-3, DCA, AAC, Vorbis decoders
346 - H.264/MPEG frame-level multithreading
347 - av_metadata_* functions renamed to av_dict_* and moved to libavutil
348 - 4:4:4 H.264 decoding support
349 - 10-bit H.264 optimizations for x86
350 - bump libswscale for recently reported ABI break
355 - VP8 frame-level multithreading
356 - NEON optimizations for VP8
357 - removed a lot of deprecated API cruft
358 - FFT and IMDCT optimizations for AVX (Sandy Bridge) processors
360 - SMPTE 302M AES3 audio decoder
361 - ffmpeg no longer quits after the 'q' key is pressed; use 'ctrl+c' instead
362 - 9bit and 10bit per sample support in the H.264 decoder
367 - WebM support in Matroska de/muxer
368 - low overhead Ogg muxing
370 - VP8 de/encoding via libvpx
371 - Demuxer for On2's IVF format
372 - Pictor/PC Paint decoder
374 - libfaad2 wrapper removed
375 - DTS-ES extension (XCh) decoding support
377 - RTSP tunneling over HTTP
378 - RTP depacketization of SVQ3
379 - -strict inofficial replaced by -strict unofficial
380 - ffplay -exitonkeydown and -exitonmousedown options added
381 - native GSM / GSM MS decoder
382 - RTP depacketization of QDM2
383 - ANSI/ASCII art playback system
384 - Lego Mindstorms RSO de/muxer
385 - SubRip subtitle file muxer and demuxer
386 - Chinese AVS encoding via libxavs
387 - ffprobe -show_packets option added
388 - RTP packetization of Theora and Vorbis
389 - RTP depacketization of MP4A-LATM
390 - RTP packetization and depacketization of VP8
392 - Apple HTTP Live Streaming demuxer
395 - G.722 ADPCM audio encoder/decoder
398 - frei0r wrapper filter
399 - change crop filter syntax to width:height:x:y
400 - make the crop filter accept parametric expressions
401 - make ffprobe accept AVFormatContext options
404 - Demuxer for Leitch/Harris' VR native stream format (LXF)
405 - RTP depacketization of the X-QT QuickTime format
406 - SAP (Session Announcement Protocol, RFC 2974) muxer and demuxer
408 - ffmpeg -crop* options removed
409 - transpose filter added
410 - ffmpeg -force_key_frames option added
411 - demuxer for receiving raw rtp:// URLs without an SDP description
412 - single stream LATM/LOAS decoder
413 - setpts filter added
414 - Win64 support for optimized x86 assembly functions
415 - MJPEG/AVI1 to JPEG/JFIF bitstream filter
416 - ASS subtitle encoder and decoder
417 - IEC 61937 encapsulation for E-AC-3, TrueHD, DTS-HD (for HDMI passthrough)
418 - overlay filter added
419 - rename aspect filter to setdar, and pixelaspect to setsar
421 - Mobotix .mxg demuxer
422 - frei0r source added
423 - hqdn3d filter added
424 - RTP depacketization of QCELP
426 - gradfun filter added
428 - replace the ocv_smooth filter with a more generic ocv filter
429 - Windows Televison (WTV) demuxer
430 - FFmpeg metadata format muxer and demuxer
431 - SubRip (srt) subtitle decoder
432 - floating-point AC-3 encoder added
434 - ffmpeg -copytb option added
436 - Wing Commander IV movies decoder added
438 - Bink version 'b' audio and video decoder
439 - Bitmap Brothers JV playback system
440 - Apple HTTP Live Streaming protocol handler
441 - sndio support for playback and record
442 - Linux framebuffer input device added
443 - Chronomaster DFA decoder
444 - Mobotix MxPEG decoder
445 - AAC encoding via libvo-aacenc
446 - AMR-WB encoding via libvo-amrwbenc
448 - fieldorder video filter added
453 - PB-frame decoding for H.263
454 - deprecated vhook subsystem removed
455 - deprecated old scaler removed
457 - Alpha channel scaler
459 - RTP packetization of H.263
460 - RTP packetization of AMR
461 - RTP depacketization of Vorbis
462 - CorePNG decoding support
463 - Cook multichannel decoding support
464 - introduced avlanguage helpers in libavformat
465 - 8088flex TMV demuxer and decoder
466 - per-stream language-tags extraction in asfdec
467 - V210 decoder and encoder
468 - remaining GPL parts in AC-3 decoder converted to LGPL
470 - SoX native format muxer and demuxer
471 - AMR-NB decoding/encoding, AMR-WB decoding via OpenCORE libraries
473 - Electronic Arts Madcow decoder
474 - DivX (XSUB) subtitle encoder
475 - nonfree libamr support for AMR-NB/WB decoding/encoding removed
476 - experimental AAC encoder
477 - RTP depacketization of ASF and RTSP from WMS servers
478 - RTMP support in libavformat
479 - noX handling for OPT_BOOL X options
481 - IEC-61937 compatible Muxer
483 - Bluray (PGS) subtitle decoder
484 - LPCM support in MPEG-TS (HDMV RID as found on Blu-ray disks)
486 - Core Audio Format demuxer
488 - MD STUDIO audio demuxer
489 - RF64 support in WAV demuxer
490 - MPEG-4 Audio Lossless Coding (ALS) decoder
491 - -formats option split into -formats, -codecs, -bsfs, and -protocols
493 - CDG demuxer and decoder
495 - Auravision Aura 1 and 2 decoders
496 - Deluxe Paint Animation playback system
498 - Adobe Filmstrip muxer and demuxer
499 - RTP depacketization of H.263
500 - Bink demuxer and audio/video decoders
501 - enable symbol versioning by default for linkers that support it
502 - IFF PBM/ILBM bitmap decoder
505 - RTP depacketization of AMR
511 - Kega Game Video (KGV1) decoder
512 - VorbisComment writing for FLAC, Ogg FLAC and Ogg Speex files
513 - RTP depacketization of Theora
514 - HTTP Digest authentication
515 - RTMP/RTMPT/RTMPS/RTMPE/RTMPTE protocol support via librtmp
516 - Psygnosis YOP demuxer and video decoder
517 - spectral extension support in the E-AC-3 decoder
518 - unsharp video filter
519 - RTP hinting in the mov/3gp/mp4 muxer
520 - Dirac in Ogg demuxing
521 - seek to keyframes in Ogg
522 - 4:2:2 and 4:4:4 Theora decoding
523 - 35% faster VP3/Theora decoding
524 - faster AAC decoding
525 - faster H.264 decoding
526 - RealAudio 1.0 (14.4K) encoder
531 - DV50 AKA DVCPRO50 encoder, decoder, muxer and demuxer
532 - TechSmith Camtasia (TSCC) video decoder
533 - IBM Ultimotion (ULTI) video decoder
534 - Sierra Online audio file demuxer and decoder
535 - Apple QuickDraw (qdrw) video decoder
536 - Creative ADPCM audio decoder (16 bits as well as 8 bits schemes)
537 - Electronic Arts Multimedia (WVE/UV2/etc.) file demuxer
538 - Miro VideoXL (VIXL) video decoder
539 - H.261 video encoder
541 - Nullsoft Video (NSV) file demuxer
542 - Shorten audio decoder
544 - Apple Lossless Audio Codec (ALAC) decoder
545 - Winnov WNV1 video decoder
546 - Autodesk Animator Studio Codec (AASC) decoder
547 - Indeo 2 video decoder
548 - Fraps FPS1 video decoder
549 - Snow video encoder/decoder
550 - Sonic audio encoder/decoder
551 - Vorbis audio decoder
552 - Macromedia ADPCM decoder
553 - Duck TrueMotion 2 video decoder
554 - support for decoding FLX and DTA extensions in FLIC files
555 - H.264 custom quantization matrices support
556 - ffserver fixed, it should now be usable again
558 - Real Cooker audio decoder
559 - TrueSpeech audio decoder
560 - WMA2 audio decoder fixed, now all files should play correctly
561 - RealAudio 14.4 and 28.8 decoders fixed
563 - build system improvements
564 - tabs and trailing whitespace removed from the codebase
565 - CamStudio video decoder
566 - AIFF/AIFF-C audio format, encoding and decoding
567 - ADTS AAC file reading and writing
568 - Creative VOC file reading and writing
569 - American Laser Games multimedia (*.mm) playback system
570 - Zip Motion Blocks Video decoder
571 - improved Theora/VP3 decoder
572 - True Audio (TTA) decoder
573 - AVS demuxer and video decoder
575 - Smacker demuxer and decoder
576 - NuppelVideo/MythTV demuxer and RTjpeg decoder
578 - MPEG-2 intra VLC support
579 - MPEG-2 4:2:2 encoder
580 - Flash Screen Video decoder
582 - Chinese AVS decoder
585 - VC-1/WMV3/WMV9 video decoder
588 - VMware video decoder
591 - WavPack lossless audio decoder
592 - Targa (.TGA) picture decoder
593 - Vorbis audio encoder
594 - Delphine Software .cin demuxer/audio and video decoder
595 - Tiertex .seq demuxer/video decoder
597 - TIFF picture encoder and decoder
598 - GIF picture decoder
599 - Intel Music Coder decoder
600 - Zip Motion Blocks Video encoder
602 - Flash Screen Video encoder
603 - Theora encoding via libtheora
606 - GSM-MS encoder and decoder
608 - DXA demuxer and decoder
610 - Gamecube movie (.THP) playback system
611 - Blackfin optimizations
612 - Interplay C93 demuxer and video decoder
613 - Bethsoft VID demuxer and video decoder
616 - V.Flash PTX decoder
617 - RoQ muxer, RoQ audio encoder
618 - Renderware TXD demuxer and decoder
619 - extern C declarations for C++ removed from headers
620 - sws_flags command line option
624 - OS/2 support removed and restored again
627 - additional SPARC (VIS) optimizations
629 - slice-based parallel H.264 decoding
630 - Monkey's Audio demuxer and decoder
631 - AMV audio and video decoder
633 - H.264 PAFF decoding
634 - Nellymoser ASAO decoder
635 - Beam Software SIFF demuxer and decoder
636 - libvorbis Vorbis decoding removed in favor of native decoder
637 - IntraX8 (J-Frame) subdecoder for WMV2 and VC-1
638 - Ogg (Theora, Vorbis and FLAC) muxer
639 - The "device" muxers and demuxers are now in a new libavdevice library
640 - PC Paintbrush PCX decoder
641 - Sun Rasterfile decoder
642 - TechnoTrend PVA demuxer
643 - Linux Media Labs MPEG-4 (LMLM4) demuxer
644 - AVM2 (Flash 9) SWF muxer
645 - QT variant of IMA ADPCM encoder
647 - iPod/iPhone compatible mp4 muxer
649 - MSN TCP Webcam stream demuxer
650 - RL2 demuxer / decoder
653 - non-recursive Makefiles
655 - MAXIS EA XA (.xa) demuxer / decoder
659 - Electronic Arts CMV decoder
660 - Motion Pixels Video decoder
661 - Motion Pixels MVI demuxer
662 - removed animated GIF decoder/demuxer
663 - D-Cinema audio muxer
664 - Electronic Arts TGV decoder
665 - Apple Lossless Audio Codec (ALAC) encoder
667 - floating point PCM encoder/decoder
669 - DV100 AKA DVCPRO HD decoder and demuxer
670 - E-AC-3 support added to AC-3 decoder
671 - Nellymoser ASAO encoder
672 - ASS and SSA demuxer and muxer
673 - liba52 wrapper removed
674 - SVQ3 watermark decoding support
675 - Speex decoding via libspeex
676 - Electronic Arts TGQ decoder
678 - QCELP / PureVoice decoder
680 - hybrid WavPack support
681 - R3D REDCODE demuxer
682 - ALSA support for playback and record
683 - Electronic Arts TQI decoder
684 - OpenJPEG based JPEG 2000 decoder
685 - NC (NC4600) camera file demuxer
686 - Gopher client support
688 - generic metadata API
693 - DV encoder, DV muxer
694 - Microsoft RLE video decoder
695 - Microsoft Video-1 decoder
696 - Apple Animation (RLE) decoder
697 - Apple Graphics (SMC) decoder
698 - Apple Video (RPZA) decoder
700 - Sega FILM (CPK) file demuxer
701 - Westwood multimedia support (VQA & AUD files)
702 - Id Quake II CIN playback support
704 - FLIC playback support
705 - RealVideo 2.0 (RV20) decoder
706 - Duck TrueMotion v1 (DUCK) video decoder
707 - Sierra VMD demuxer and video decoder
708 - MSZH and ZLIB decoder support
712 - rate distortion optimal cbp support
713 - rate distorted optimal ac prediction for MPEG-4
714 - rate distorted optimal lambda->qp support
715 - AAC encoding with libfaac
716 - Sunplus JPEG codec (SP5X) support
717 - use Lagrange multipler instead of QP for ratecontrol
718 - Theora/VP3 decoding support
719 - XA and ADX ADPCM codecs
720 - export MPEG-2 active display area / pan scan
721 - Add support for configuring with IBM XLC
722 - floating point AAN DCT
723 - initial support for zygo video (not complete)
725 - new audio/video parser API
727 - av_read_frame() and av_seek_frame() support
728 - missing last frame fixes
729 - seek by mouse in ffplay
730 - noise reduction of DCT coefficients
731 - H.263 OBMC & 4MV support
732 - H.263 alternative inter vlc support
734 - H.263 slice structured mode
735 - interlaced DCT support for MPEG-2 encoding
736 - stuffing to stay above min_bitrate
737 - MB type & QP visualization
738 - frame stepping for ffplay
739 - interlaced motion estimation
740 - alternate scantable support
741 - SVCD scan offset support
744 - quantizer noise shaping
745 - G.726 ADPCM audio codec
747 - multithreaded/SMP motion estimation
748 - multithreaded/SMP encoding for MPEG-1/MPEG-2/MPEG-4/H.263
749 - multithreaded/SMP decoding for MPEG-2
751 - Metrowerks CodeWarrior suppport
752 - H.263+ custom pcf support
753 - nicer output for 'ffmpeg -formats'
755 - SGI image format, encoding and decoding
756 - H.264 loop filter support
757 - H.264 CABAC support
758 - nicer looking arrows for the motion vector visualization
759 - improved VCD support
760 - audio timestamp drift compensation
761 - MPEG-2 YUV 422/444 support
762 - polyphase kaiser windowed sinc and blackman nuttall windowed sinc audio resample
763 - better image scaling
765 - correctly interleave packets during encoding
766 - VIS optimized motion compensation
767 - intra_dc_precision>0 encoding support
768 - support reuse of motion vectors/MB types/field select values of the source video
769 - more accurate deblock filter
771 - many optimizations and bugfixes
772 - FunCom ISS audio file demuxer and according ADPCM decoding
777 - MPEG-2 video encoding (Michael)
778 - Id RoQ playback subsystem (Mike Melanson and Tim Ferguson)
779 - Wing Commander III Movie (.mve) file playback subsystem (Mike Melanson
781 - Xan DPCM audio decoder (Mario Brito)
782 - Interplay MVE playback subsystem (Mike Melanson)
783 - Duck DK3 and DK4 ADPCM audio decoders (Mike Melanson)
788 - RealAudio 1.0 (14_4) and 2.0 (28_8) native decoders. Author unknown, code from mplayerhq
789 (originally from public domain player for Amiga at http://www.honeypot.net/audio)
790 - current version now also compiles with older GCC (Fabrice)
791 - 4X multimedia playback system including 4xm file demuxer (Mike
792 Melanson), and 4X video and audio codecs (Michael)
793 - Creative YUV (CYUV) decoder (Mike Melanson)
794 - FFV1 codec (our very simple lossless intra only codec, compresses much better
795 than HuffYUV) (Michael)
796 - ASV1 (Asus), H.264, Intel indeo3 codecs have been added (various)
797 - tiny PNG encoder and decoder, tiny GIF decoder, PAM decoder (PPM with
798 alpha support), JPEG YUV colorspace support. (Fabrice Bellard)
799 - ffplay has been replaced with a newer version which uses SDL (optionally)
800 for multiplatform support (Fabrice)
801 - Sorenson Version 3 codec (SVQ3) support has been added (decoding only) - donated
803 - AMR format has been added (Johannes Carlsson)
804 - 3GP support has been added (Johannes Carlsson)
805 - VP3 codec has been added (Mike Melanson)
806 - more MPEG-1/2 fixes
807 - better multiplatform support, MS Visual Studio fixes (various)
808 - AltiVec optimizations (Magnus Damn and others)
809 - SH4 processor support has been added (BERO)
810 - new public interfaces (avcodec_get_pix_fmt) (Roman Shaposhnick)
811 - VOB streaming support (Brian Foley)
812 - better MP3 autodetection (Andriy Rysin)
813 - qpel encoding (Michael)
814 - 4mv+b frames encoding finally fixed (Michael)
815 - chroma ME (Michael)
816 - 5 comparison functions for ME (Michael)
817 - B-frame encoding speedup (Michael)
818 - WMV2 codec (unfinished - Michael)
819 - user specified diamond size for EPZS (Michael)
820 - Playstation STR playback subsystem, still experimental (Mike and Michael)
821 - ASV2 codec (Michael)
822 - CLJR decoder (Alex)
824 .. And lots more new enhancements and fixes.
829 - completely new integer only MPEG audio layer 1/2/3 decoder rewritten
831 - Recoded DCT and motion vector search with gcc (no longer depends on nasm)
832 - fix quantization bug in AC3 encoder
833 - added PCM codecs and format. Corrected WAV/AVI/ASF PCM issues
834 - added prototype ffplay program
835 - added GOB header parsing on H.263/H.263+ decoder (Juanjo)
836 - bug fix on MCBPC tables of H.263 (Juanjo)
837 - bug fix on DC coefficients of H.263 (Juanjo)
838 - added Advanced Prediction Mode on H.263/H.263+ decoder (Juanjo)
839 - now we can decode H.263 streams found in QuickTime files (Juanjo)
840 - now we can decode H.263 streams found in VIVO v1 files(Juanjo)
841 - preliminary RTP "friendly" mode for H.263/H.263+ coding. (Juanjo)
842 - added GOB header for H.263/H.263+ coding on RTP mode (Juanjo)
843 - now H.263 picture size is returned on the first decoded frame (Juanjo)
844 - added first regression tests
845 - added MPEG-2 TS demuxer
846 - new demux API for libav
847 - more accurate and faster IDCT (Michael)
848 - faster and entropy-controlled motion search (Michael)
849 - two pass video encoding (Michael)
850 - new video rate control (Michael)
851 - added MSMPEG4V1, MSMPEGV2 and WMV1 support (Michael)
852 - great performance improvement of video encoders and decoders (Michael)
853 - new and faster bit readers and vlc parsers (Michael)
854 - high quality encoding mode: tries all macroblock/VLC types (Michael)
855 - added DV video decoder
856 - preliminary RTP/RTSP support in ffserver and libavformat
857 - H.263+ AIC decoding/encoding support (Juanjo)
858 - VCD MPEG-PS mode (Juanjo)
859 - PSNR stuff (Juanjo)
860 - simple stats output (Juanjo)
861 - 16-bit and 15-bit RGB/BGR/GBR support (Bisqwit)
866 - some header fixes (Zdenek Kabelac <kabi at informatics.muni.cz>)
867 - many MMX optimizations (Nick Kurshev <nickols_k at mail.ru>)
868 - added configure system (actually a small shell script)
869 - added MPEG audio layer 1/2/3 decoding using LGPL'ed mpglib by
870 Michael Hipp (temporary solution - waiting for integer only
872 - fixed VIDIOCSYNC interrupt
873 - added Intel H.263 decoding support ('I263' AVI fourCC)
874 - added Real Video 1.0 decoding (needs further testing)
875 - simplified image formats again. Added PGM format (=grey
876 pgm). Renamed old PGM to PGMYUV.
877 - fixed msmpeg4 slice issues (tell me if you still find problems)
878 - fixed OpenDivX bugs with newer versions (added VOL header decoding)
879 - added support for MPlayer interface
880 - added macroblock skip optimization
881 - added MJPEG decoder
882 - added mmx/mmxext IDCT from libmpeg2
883 - added pgmyuvpipe, ppm, and ppm_pipe formats (original patch by Celer
884 <celer at shell.scrypt.net>)
885 - added pixel format conversion layer (e.g. for MJPEG or PPM)
886 - added deinterlacing option
888 - MPEG-4 vol header fixes (Jonathan Marsden <snmjbm at pacbell.net>)
889 - ARM optimizations (Lionel Ulmer <lionel.ulmer at free.fr>).
890 - Windows porting of file converter
891 - added MJPEG raw format (input/ouput)
892 - added JPEG image format support (input/output)
897 - fixed some std header definitions (Bjorn Lindgren
898 <bjorn.e.lindgren at telia.com>).
899 - added MPEG demuxer (MPEG-1 and 2 compatible).
901 - added prototype RM demuxer
902 - added AC3 decoding (done with libac3 by Aaron Holtzman)
903 - added decoding codec parameter guessing (.e.g. for MPEG, because the
904 header does not include them)
905 - fixed header generation in MPEG-1, AVI and ASF muxer: wmplayer can now
906 play them (only tested video)
907 - fixed H.263 white bug
908 - fixed phase rounding in img resample filter
909 - add MMX code for polyphase img resample filter
910 - added CPU autodetection
911 - added generic title/author/copyright/comment string handling (ASF and RM
913 - added SWF demux to extract MP3 track (not usable yet because no MP3
915 - added fractional frame rate support
916 - codecs are no longer searched by read_header() (should fix ffserver
922 - BGR24 patch (initial patch by Jeroen Vreeken <pe1rxq at amsat.org>)
923 - fixed raw yuv output
924 - added motion rounding support in MPEG-4
925 - fixed motion bug rounding in MSMPEG4
926 - added B-frame handling in video core
927 - added full MPEG-1 decoding support
928 - added partial (frame only) MPEG-2 support
929 - changed the FOURCC code for H.263 to "U263" to be able to see the
930 +AVI/H.263 file with the UB Video H.263+ decoder. MPlayer works with
931 this +codec ;) (JuanJo).
932 - Halfpel motion estimation after MB type selection (JuanJo)
933 - added pgm and .Y.U.V output format
934 - suppressed 'img:' protocol. Simply use: /tmp/test%d.[pgm|Y] as input or
936 - added pgmpipe I/O format (original patch from Martin Aumueller
937 <lists at reserv.at>, but changed completely since we use a format
938 instead of a protocol)
943 - added H.263/MPEG-4/MSMPEG4 decoding support. MPEG-4 decoding support
944 (for OpenDivX) is almost complete: 8x8 MVs and rounding are
945 missing. MSMPEG4 support is complete.
946 - added prototype MPEG-1 decoder. Only I- and P-frames handled yet (it
947 can decode ffmpeg MPEGs :-)).
948 - added libavcodec API documentation (see apiexample.c).
949 - fixed image polyphase bug (the bottom of some images could be
951 - added support for non clipped motion vectors (decoding only)
952 and image sizes non-multiple of 16
953 - added support for AC prediction (decoding only)
954 - added file overwrite confirmation (can be disabled with -y)
955 - added custom size picture to H.263 using H.263+ (Juanjo)
960 - added MSMPEG4 (aka DivX) compatible encoder. Changed default codec
961 of AVI and ASF to DIV3.
962 - added -me option to set motion estimation method
963 (default=log). suppressed redundant -hq option.
964 - added options -acodec and -vcodec to force a given codec (useful for
967 - improved dct_quantize speed
968 - factorized some motion estimation code
973 - removing grab code from ffserver and moved it to ffmpeg. Added
974 multistream support to ffmpeg.
975 - added timeshifting support for live feeds (option ?date=xxx in the
977 - added high quality image resize code with polyphase filter (need
978 mmx/see optimization). Enable multiple image size support in ffserver.
979 - added multi live feed support in ffserver
980 - suppressed master feature from ffserver (it should be done with an
981 external program which opens the .ffm url and writes it to another
983 - added preliminary support for video stream parsing (WAV and AVI half
984 done). Added proper support for audio/video file conversion in
986 - added preliminary support for video file sending from ffserver
987 - redesigning I/O subsystem: now using URL based input and output
989 - added WAV format support
990 - added "tty user interface" to ffmpeg to stop grabbing gracefully
991 - added MMX/SSE optimizations to SAD (Sums of Absolutes Differences)
992 (Juan J. Sierralta P. a.k.a. "Juanjo" <juanjo at atmlab.utfsm.cl>)
993 - added MMX DCT from mpeg2_movie 1.5 (Juanjo)
994 - added new motion estimation algorithms, log and phods (Juanjo)
995 - changed directories: libav for format handling, libavcodec for
1001 - added stereo in MPEG audio encoder
1006 - added 'high quality' mode which use motion vectors. It can be used in
1007 real time at low resolution.
1008 - fixed rounding problems which caused quality problems at high
1009 bitrates and large GOP size
1012 version 0.3.2: small fixes
1018 version 0.3.1: added avi/divx support
1021 - added MPEG-4 codec compatible with OpenDivX. It is based on the H.263 codec
1022 - added sound for flash format (not tested)
1025 version 0.3: initial public release