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
43 - shuffleplanes filter
44 - replaygain data export
45 - Alias PIX image encoder and decoder
46 - BRender PIX image decoder
47 - Amazing Studio PAF playback support
49 - BMP standalone parser
50 - OpenEXR image decoder
51 - support encoding and decoding 4-channel SGI images
52 - support decoding 16-bit RLE SGI images
54 - LucasArts SMUSH SANM video decoder
55 - LucasArts SMUSH VIMA audio decoder (ADPCM)
56 - LucasArts SMUSH demuxer
57 - MP2 encoding via TwoLAME
59 - Silicon Graphics RLE 8-bit video decoder
60 - Silicon Graphics Motion Video Compressor 1 & 2 decoder
61 - Silicon Graphics Movie demuxer
62 - On2 AVC (Audio for Video) decoder
63 - support for decoding through DXVA2 in avconv
64 - libbs2b-based stereo-to-binaural audio filter
66 - display matrix export and rotation API
67 - drop avserver, it was unmaintained for years and largely broken
69 - request Icecast metadata by default
70 - support for using metadata in stream specifiers in avtools
76 - support ID3v2 tags in ASF files
77 - reference-counting for AVFrame and AVPacket data
78 - avconv now fails when input options are used for output file
80 - avconv options -filter_script and -filter_complex_script, which allow a
81 filtergraph description to be read from a file
82 - uniform options syntax across all filters
85 - asetpts filter (same as setpts, but for audio)
86 - trim and atrim filters
87 - avconv -t and -ss (output-only) options are now sample-accurate when
89 - Matroska muxer can now put the index at the beginning of the file.
90 - avconv -deinterlace option removed, the yadif filter should be used instead
91 - Apple Intermediate Codec decoder
92 - Escape 130 video decoder
93 - support for slice multithreading in libavfilter
94 - VC-1 interlaced B-frame support
95 - support for WavPack muxing (raw and in Matroska)
97 - WavPack encoding through libwavpack
98 - Added the -n parameter to avconv
100 - when transcoding with avconv (i.e. not streamcopying), -ss is now accurate
101 even when used as an input option. Previous behavior can be restored with
102 the -noaccurate_seek option.
103 - avconv -t option can now be used for inputs, to limit the duration of
104 data read from an input file
105 - Voxware MetaSound decoder
107 - Error Resilient AAC syntax (ER AAC LC) decoding
108 - Low Delay AAC (ER AAC LD) decoding
109 - mux chapters in ASF files
110 - Opus in Ogg demuxing
111 - Enhanced Low Delay AAC (ER AAC ELD) decoding (no LD SBR support)
113 - HNM version 4 demuxer and video decoder
115 - raw HEVC, HEVC in MOV/MP4, HEVC in Matroska, HEVC in MPEG-TS demuxing
116 - remove avplay -vismv option, which has not worked for a long time
118 - setsar/setdar filters now support variables in ratio expressions
119 - dar variable in the scale filter now returns the actual DAR (i.e. a * sar)
121 - support for decoding through VDPAU in avconv (the -hwaccel option)
122 - remove mp3_header_(de)compress bitstream filters
123 - stereoscopic 3d metadata handling
124 - png standalone parser
125 - WebP encoding via libwebp
128 - Mirillis FIC video decoder
130 - compand audio filter
134 - av_basename and av_dirname
135 - adobe and limelight publisher authentication in RTMP
136 - VDPAU hardware acceleration through normal hwaccel
141 - ashowinfo audio filter
142 - 24-bit FLAC encoding
143 - audio volume filter
144 - deprecated the avconv -vol option. the volume filter is to be used instead.
145 - multi-channel ALAC encoding up to 7.1
146 - TAK demuxer, parser, and decoder
147 - adaptive frame-level multithreading for H.264
151 - metadata (INFO tag) support in WAV muxer
152 - support for building DLLs using MSVC
153 - remove avserver daemon mode
154 - support building on the Plan 9 operating system
155 - ffv1: support version 1.3
160 - XWD encoder and decoder
161 - Support for fragmentation in the mov/mp4 muxer
162 - ISMV (Smooth Streaming) muxer
163 - CDXL demuxer and decoder
164 - Apple ProRes encoder
165 - Sun Rasterfile Encoder
167 - ID3v2 attached pictures reading and writing
168 - WMA Lossless decoder
170 - RealAudio Lossless decoder
172 - drop support for avconv without libavfilter
173 - add libavresample audio conversion library
174 - audio filters support in libavfilter and avconv
178 - avprobe output is now standard INI or JSON. The old format can still
179 be used with -of old.
180 - Indeo Audio decoder
181 - channelsplit audio filter
182 - RTMPT protocol support
183 - iLBC encoding/decoding via libilbc
184 - Microsoft Screen 1 decoder
186 - audio channel mapping filter
187 - Microsoft ATC Screen decoder
189 - TechSmith Screen Codec 2 decoder
190 - AAC encoding via libfdk-aac
191 - Microsoft Expression Encoder Screen decoder
192 - RTMPS protocol support
193 - RTMPTS protocol support
194 - JPEG 2000 encoding support through OpenJPEG
195 - G.723.1 demuxer and decoder
196 - RTMPE protocol support
197 - RTMPTE protocol support
198 - Canopus Lossless Codec decoder
199 - avconv -shortest option is now per-output file,
200 -pass and -passlogfile are now per-output stream
202 - Microsoft Screen 2 decoder
203 - RTP depacketization of JPEG
204 - Smooth Streaming live segmenter muxer
205 - RTP packetization of JPEG
206 - Opus decoder and encoder using libopus
207 - remove -same_quant, it hasn't worked for years
208 - support for building with MSVC
219 - Automatic thread count based on detection number of (available) CPU cores
220 - Deprecate libpostproc. If desired, the switch --enable-postproc will
221 enable it but it may be removed in a later Libav release.
222 - rv34: frame-level multi-threading
223 - optimized iMDCT transform on x86 using SSE for for mpegaudiodec
229 - Flash Screen Video 2 decoder
230 - ffplay/ffprobe/ffserver renamed to avplay/avprobe/avserver
231 - ffmpeg deprecated, added avconv, which is almost the same for now, except
232 for a few incompatible changes in the options, which will hopefully make them
233 easier to use. The changes are:
234 * The options placement is now strictly enforced! While in theory the
235 options for ffmpeg should be given in [input options] -i INPUT [output
236 options] OUTPUT order, in practice it was possible to give output options
237 before the -i and it mostly worked. Except when it didn't - the behavior was
238 a bit inconsistent. In avconv, it is not possible to mix input and output
239 options. All non-global options are reset after an input or output filename.
240 * All per-file options are now truly per-file - they apply only to the next
241 input or output file and specifying different values for different files
242 will now work properly (notably -ss and -t options).
243 * All per-stream options are now truly per-stream - it is possible to
244 specify which stream(s) should a given option apply to. See the Stream
245 specifiers section in the avconv manual for details.
246 * In ffmpeg some options (like -newvideo/-newaudio/...) are irregular in the
247 sense that they're specified after the output filename instead of before,
248 like all other options. In avconv this irregularity is removed, all options
249 apply to the next input or output file.
250 * -newvideo/-newaudio/-newsubtitle options were removed. Not only were they
251 irregular and highly confusing, they were also redundant. In avconv the -map
252 option will create new streams in the output file and map input streams to
253 them. E.g. avconv -i INPUT -map 0 OUTPUT will create an output stream for
254 each stream in the first input file.
255 * The -map option now has slightly different and more powerful syntax:
256 + Colons (':') are used to separate file index/stream type/stream index
257 instead of dots. Comma (',') is used to separate the sync stream instead
258 of colon.. This is done for consistency with other options.
259 + It's possible to specify stream type. E.g. -map 0:a:2 creates an
260 output stream from the third input audio stream.
261 + Omitting the stream index now maps all the streams of the given type,
262 not just the first. E.g. -map 0:s creates output streams for all the
263 subtitle streams in the first input file.
264 + Since -map can now match multiple streams, negative mappings were
265 introduced. Negative mappings disable some streams from an already
266 defined map. E.g. '-map 0 -map -0:a:1' means 'create output streams for
267 all the stream in the first input file, except for the second audio
269 * There is a new option -c (or -codec) for choosing the decoder/encoder to
270 use, which allows to precisely specify target stream(s) consistently with
271 other options. E.g. -c:v lib264 sets the codec for all video streams, -c:a:0
272 libvorbis sets the codec for the first audio stream and -c copy copies all
273 the streams without reencoding. Old -vcodec/-acodec/-scodec options are now
275 * It is now possible to precisely specify which stream should an AVOption
276 apply to. E.g. -b:v:0 2M sets the bitrate for the first video stream, while
277 -b:a 128k sets the bitrate for all audio streams. Note that the old -ab 128k
278 syntax is deprecated and will stop working soon.
279 * -map_chapters now takes only an input file index and applies to the next
280 output file. This is consistent with how all the other options work.
281 * -map_metadata now takes only an input metadata specifier and applies to
282 the next output file. Output metadata specifier is now part of the option
283 name, similarly to the AVOptions/map/codec feature above.
284 * -metadata can now be used to set metadata on streams and chapters, e.g.
285 -metadata:s:1 language=eng sets the language of the first stream to 'eng'.
286 This made -vlang/-alang/-slang options redundant, so they were removed.
287 * -qscale option now uses stream specifiers and applies to all streams, not
288 just video. I.e. plain -qscale number would now apply to all streams. To get
289 the old behavior, use -qscale:v. Also there is now a shortcut -q for -qscale
290 and -aq is now an alias for -q:a.
291 * -vbsf/-absf/-sbsf options were removed and replaced by a -bsf option which
292 uses stream specifiers. Use -bsf:v/a/s instead of the old options.
293 * -itsscale option now uses stream specifiers, so its argument is only the
295 * -intra option was removed, use -g 0 for the same effect.
296 * -psnr option was removed, use -flags +psnr for the same effect.
297 * -vf option is now an alias to the new -filter option, which uses stream specifiers.
298 * -vframes/-aframes/-dframes options are now aliases to the new -frames option.
299 * -vtag/-atag/-stag options are now aliases to the new -tag option.
301 - Windows Media Image decoder
305 - libcdio-paranoia input device for audio CD grabbing
307 - Apple ProRes decoder
308 - CELT in Ogg demuxing
309 - VC-1 interlaced decoding
310 - lut, lutrgb, and lutyuv filters
313 - Speex encoding via libspeex
314 - 4:2:2 H.264 decoding support
315 - 4:2:2 and 4:4:4 H.264 encoding with libx264
316 - Pulseaudio input device
317 - replacement Indeo 3 decoder
318 - TLS/SSL and HTTPS protocol support
319 - AVOptions API rewritten and documented
320 - most of CODEC_FLAG2_*, some CODEC_FLAG_* and many codec-specific fields in
321 AVCodecContext deprecated. Codec private options should be used instead.
322 - Properly working defaults in libx264 wrapper, support for native presets.
323 - Encrypted OMA files support
324 - Discworld II BMV decoding support
326 - OS X Video Decoder Acceleration (VDA) support
327 - CRI ADX audio format muxer and demuxer
328 - Playstation Portable PMP format demuxer
329 - PCM format support in OMA demuxer
331 - Dxtory capture format decoder
332 - v410 QuickTime uncompressed 4:4:4 10-bit encoder and decoder
334 - Simple segmenting muxer
341 - E-AC-3 audio encoder
342 - ac3enc: add channel coupling support
343 - floating-point sample format support for (E-)AC-3, DCA, AAC, Vorbis decoders
344 - H.264/MPEG frame-level multithreading
345 - av_metadata_* functions renamed to av_dict_* and moved to libavutil
346 - 4:4:4 H.264 decoding support
347 - 10-bit H.264 optimizations for x86
348 - bump libswscale for recently reported ABI break
353 - VP8 frame-level multithreading
354 - NEON optimizations for VP8
355 - removed a lot of deprecated API cruft
356 - FFT and IMDCT optimizations for AVX (Sandy Bridge) processors
358 - SMPTE 302M AES3 audio decoder
359 - ffmpeg no longer quits after the 'q' key is pressed; use 'ctrl+c' instead
360 - 9bit and 10bit per sample support in the H.264 decoder
365 - WebM support in Matroska de/muxer
366 - low overhead Ogg muxing
368 - VP8 de/encoding via libvpx
369 - Demuxer for On2's IVF format
370 - Pictor/PC Paint decoder
372 - libfaad2 wrapper removed
373 - DTS-ES extension (XCh) decoding support
375 - RTSP tunneling over HTTP
376 - RTP depacketization of SVQ3
377 - -strict inofficial replaced by -strict unofficial
378 - ffplay -exitonkeydown and -exitonmousedown options added
379 - native GSM / GSM MS decoder
380 - RTP depacketization of QDM2
381 - ANSI/ASCII art playback system
382 - Lego Mindstorms RSO de/muxer
383 - SubRip subtitle file muxer and demuxer
384 - Chinese AVS encoding via libxavs
385 - ffprobe -show_packets option added
386 - RTP packetization of Theora and Vorbis
387 - RTP depacketization of MP4A-LATM
388 - RTP packetization and depacketization of VP8
390 - Apple HTTP Live Streaming demuxer
393 - G.722 ADPCM audio encoder/decoder
396 - frei0r wrapper filter
397 - change crop filter syntax to width:height:x:y
398 - make the crop filter accept parametric expressions
399 - make ffprobe accept AVFormatContext options
402 - Demuxer for Leitch/Harris' VR native stream format (LXF)
403 - RTP depacketization of the X-QT QuickTime format
404 - SAP (Session Announcement Protocol, RFC 2974) muxer and demuxer
406 - ffmpeg -crop* options removed
407 - transpose filter added
408 - ffmpeg -force_key_frames option added
409 - demuxer for receiving raw rtp:// URLs without an SDP description
410 - single stream LATM/LOAS decoder
411 - setpts filter added
412 - Win64 support for optimized x86 assembly functions
413 - MJPEG/AVI1 to JPEG/JFIF bitstream filter
414 - ASS subtitle encoder and decoder
415 - IEC 61937 encapsulation for E-AC-3, TrueHD, DTS-HD (for HDMI passthrough)
416 - overlay filter added
417 - rename aspect filter to setdar, and pixelaspect to setsar
419 - Mobotix .mxg demuxer
420 - frei0r source added
421 - hqdn3d filter added
422 - RTP depacketization of QCELP
424 - gradfun filter added
426 - replace the ocv_smooth filter with a more generic ocv filter
427 - Windows Televison (WTV) demuxer
428 - FFmpeg metadata format muxer and demuxer
429 - SubRip (srt) subtitle decoder
430 - floating-point AC-3 encoder added
432 - ffmpeg -copytb option added
434 - Wing Commander IV movies decoder added
436 - Bink version 'b' audio and video decoder
437 - Bitmap Brothers JV playback system
438 - Apple HTTP Live Streaming protocol handler
439 - sndio support for playback and record
440 - Linux framebuffer input device added
441 - Chronomaster DFA decoder
442 - Mobotix MxPEG decoder
443 - AAC encoding via libvo-aacenc
444 - AMR-WB encoding via libvo-amrwbenc
446 - fieldorder video filter added
451 - PB-frame decoding for H.263
452 - deprecated vhook subsystem removed
453 - deprecated old scaler removed
455 - Alpha channel scaler
457 - RTP packetization of H.263
458 - RTP packetization of AMR
459 - RTP depacketization of Vorbis
460 - CorePNG decoding support
461 - Cook multichannel decoding support
462 - introduced avlanguage helpers in libavformat
463 - 8088flex TMV demuxer and decoder
464 - per-stream language-tags extraction in asfdec
465 - V210 decoder and encoder
466 - remaining GPL parts in AC-3 decoder converted to LGPL
468 - SoX native format muxer and demuxer
469 - AMR-NB decoding/encoding, AMR-WB decoding via OpenCORE libraries
471 - Electronic Arts Madcow decoder
472 - DivX (XSUB) subtitle encoder
473 - nonfree libamr support for AMR-NB/WB decoding/encoding removed
474 - experimental AAC encoder
475 - RTP depacketization of ASF and RTSP from WMS servers
476 - RTMP support in libavformat
477 - noX handling for OPT_BOOL X options
479 - IEC-61937 compatible Muxer
481 - Bluray (PGS) subtitle decoder
482 - LPCM support in MPEG-TS (HDMV RID as found on Blu-ray disks)
484 - Core Audio Format demuxer
486 - MD STUDIO audio demuxer
487 - RF64 support in WAV demuxer
488 - MPEG-4 Audio Lossless Coding (ALS) decoder
489 - -formats option split into -formats, -codecs, -bsfs, and -protocols
491 - CDG demuxer and decoder
493 - Auravision Aura 1 and 2 decoders
494 - Deluxe Paint Animation playback system
496 - Adobe Filmstrip muxer and demuxer
497 - RTP depacketization of H.263
498 - Bink demuxer and audio/video decoders
499 - enable symbol versioning by default for linkers that support it
500 - IFF PBM/ILBM bitmap decoder
503 - RTP depacketization of AMR
509 - Kega Game Video (KGV1) decoder
510 - VorbisComment writing for FLAC, Ogg FLAC and Ogg Speex files
511 - RTP depacketization of Theora
512 - HTTP Digest authentication
513 - RTMP/RTMPT/RTMPS/RTMPE/RTMPTE protocol support via librtmp
514 - Psygnosis YOP demuxer and video decoder
515 - spectral extension support in the E-AC-3 decoder
516 - unsharp video filter
517 - RTP hinting in the mov/3gp/mp4 muxer
518 - Dirac in Ogg demuxing
519 - seek to keyframes in Ogg
520 - 4:2:2 and 4:4:4 Theora decoding
521 - 35% faster VP3/Theora decoding
522 - faster AAC decoding
523 - faster H.264 decoding
524 - RealAudio 1.0 (14.4K) encoder
529 - DV50 AKA DVCPRO50 encoder, decoder, muxer and demuxer
530 - TechSmith Camtasia (TSCC) video decoder
531 - IBM Ultimotion (ULTI) video decoder
532 - Sierra Online audio file demuxer and decoder
533 - Apple QuickDraw (qdrw) video decoder
534 - Creative ADPCM audio decoder (16 bits as well as 8 bits schemes)
535 - Electronic Arts Multimedia (WVE/UV2/etc.) file demuxer
536 - Miro VideoXL (VIXL) video decoder
537 - H.261 video encoder
539 - Nullsoft Video (NSV) file demuxer
540 - Shorten audio decoder
542 - Apple Lossless Audio Codec (ALAC) decoder
543 - Winnov WNV1 video decoder
544 - Autodesk Animator Studio Codec (AASC) decoder
545 - Indeo 2 video decoder
546 - Fraps FPS1 video decoder
547 - Snow video encoder/decoder
548 - Sonic audio encoder/decoder
549 - Vorbis audio decoder
550 - Macromedia ADPCM decoder
551 - Duck TrueMotion 2 video decoder
552 - support for decoding FLX and DTA extensions in FLIC files
553 - H.264 custom quantization matrices support
554 - ffserver fixed, it should now be usable again
556 - Real Cooker audio decoder
557 - TrueSpeech audio decoder
558 - WMA2 audio decoder fixed, now all files should play correctly
559 - RealAudio 14.4 and 28.8 decoders fixed
561 - build system improvements
562 - tabs and trailing whitespace removed from the codebase
563 - CamStudio video decoder
564 - AIFF/AIFF-C audio format, encoding and decoding
565 - ADTS AAC file reading and writing
566 - Creative VOC file reading and writing
567 - American Laser Games multimedia (*.mm) playback system
568 - Zip Motion Blocks Video decoder
569 - improved Theora/VP3 decoder
570 - True Audio (TTA) decoder
571 - AVS demuxer and video decoder
573 - Smacker demuxer and decoder
574 - NuppelVideo/MythTV demuxer and RTjpeg decoder
576 - MPEG-2 intra VLC support
577 - MPEG-2 4:2:2 encoder
578 - Flash Screen Video decoder
580 - Chinese AVS decoder
583 - VC-1/WMV3/WMV9 video decoder
586 - VMware video decoder
589 - WavPack lossless audio decoder
590 - Targa (.TGA) picture decoder
591 - Vorbis audio encoder
592 - Delphine Software .cin demuxer/audio and video decoder
593 - Tiertex .seq demuxer/video decoder
595 - TIFF picture encoder and decoder
596 - GIF picture decoder
597 - Intel Music Coder decoder
598 - Zip Motion Blocks Video encoder
600 - Flash Screen Video encoder
601 - Theora encoding via libtheora
604 - GSM-MS encoder and decoder
606 - DXA demuxer and decoder
608 - Gamecube movie (.THP) playback system
609 - Blackfin optimizations
610 - Interplay C93 demuxer and video decoder
611 - Bethsoft VID demuxer and video decoder
614 - V.Flash PTX decoder
615 - RoQ muxer, RoQ audio encoder
616 - Renderware TXD demuxer and decoder
617 - extern C declarations for C++ removed from headers
618 - sws_flags command line option
622 - OS/2 support removed and restored again
625 - additional SPARC (VIS) optimizations
627 - slice-based parallel H.264 decoding
628 - Monkey's Audio demuxer and decoder
629 - AMV audio and video decoder
631 - H.264 PAFF decoding
632 - Nellymoser ASAO decoder
633 - Beam Software SIFF demuxer and decoder
634 - libvorbis Vorbis decoding removed in favor of native decoder
635 - IntraX8 (J-Frame) subdecoder for WMV2 and VC-1
636 - Ogg (Theora, Vorbis and FLAC) muxer
637 - The "device" muxers and demuxers are now in a new libavdevice library
638 - PC Paintbrush PCX decoder
639 - Sun Rasterfile decoder
640 - TechnoTrend PVA demuxer
641 - Linux Media Labs MPEG-4 (LMLM4) demuxer
642 - AVM2 (Flash 9) SWF muxer
643 - QT variant of IMA ADPCM encoder
645 - iPod/iPhone compatible mp4 muxer
647 - MSN TCP Webcam stream demuxer
648 - RL2 demuxer / decoder
651 - non-recursive Makefiles
653 - MAXIS EA XA (.xa) demuxer / decoder
657 - Electronic Arts CMV decoder
658 - Motion Pixels Video decoder
659 - Motion Pixels MVI demuxer
660 - removed animated GIF decoder/demuxer
661 - D-Cinema audio muxer
662 - Electronic Arts TGV decoder
663 - Apple Lossless Audio Codec (ALAC) encoder
665 - floating point PCM encoder/decoder
667 - DV100 AKA DVCPRO HD decoder and demuxer
668 - E-AC-3 support added to AC-3 decoder
669 - Nellymoser ASAO encoder
670 - ASS and SSA demuxer and muxer
671 - liba52 wrapper removed
672 - SVQ3 watermark decoding support
673 - Speex decoding via libspeex
674 - Electronic Arts TGQ decoder
676 - QCELP / PureVoice decoder
678 - hybrid WavPack support
679 - R3D REDCODE demuxer
680 - ALSA support for playback and record
681 - Electronic Arts TQI decoder
682 - OpenJPEG based JPEG 2000 decoder
683 - NC (NC4600) camera file demuxer
684 - Gopher client support
686 - generic metadata API
691 - DV encoder, DV muxer
692 - Microsoft RLE video decoder
693 - Microsoft Video-1 decoder
694 - Apple Animation (RLE) decoder
695 - Apple Graphics (SMC) decoder
696 - Apple Video (RPZA) decoder
698 - Sega FILM (CPK) file demuxer
699 - Westwood multimedia support (VQA & AUD files)
700 - Id Quake II CIN playback support
702 - FLIC playback support
703 - RealVideo 2.0 (RV20) decoder
704 - Duck TrueMotion v1 (DUCK) video decoder
705 - Sierra VMD demuxer and video decoder
706 - MSZH and ZLIB decoder support
710 - rate distortion optimal cbp support
711 - rate distorted optimal ac prediction for MPEG-4
712 - rate distorted optimal lambda->qp support
713 - AAC encoding with libfaac
714 - Sunplus JPEG codec (SP5X) support
715 - use Lagrange multipler instead of QP for ratecontrol
716 - Theora/VP3 decoding support
717 - XA and ADX ADPCM codecs
718 - export MPEG-2 active display area / pan scan
719 - Add support for configuring with IBM XLC
720 - floating point AAN DCT
721 - initial support for zygo video (not complete)
723 - new audio/video parser API
725 - av_read_frame() and av_seek_frame() support
726 - missing last frame fixes
727 - seek by mouse in ffplay
728 - noise reduction of DCT coefficients
729 - H.263 OBMC & 4MV support
730 - H.263 alternative inter vlc support
732 - H.263 slice structured mode
733 - interlaced DCT support for MPEG-2 encoding
734 - stuffing to stay above min_bitrate
735 - MB type & QP visualization
736 - frame stepping for ffplay
737 - interlaced motion estimation
738 - alternate scantable support
739 - SVCD scan offset support
742 - quantizer noise shaping
743 - G.726 ADPCM audio codec
745 - multithreaded/SMP motion estimation
746 - multithreaded/SMP encoding for MPEG-1/MPEG-2/MPEG-4/H.263
747 - multithreaded/SMP decoding for MPEG-2
749 - Metrowerks CodeWarrior suppport
750 - H.263+ custom pcf support
751 - nicer output for 'ffmpeg -formats'
753 - SGI image format, encoding and decoding
754 - H.264 loop filter support
755 - H.264 CABAC support
756 - nicer looking arrows for the motion vector visualization
757 - improved VCD support
758 - audio timestamp drift compensation
759 - MPEG-2 YUV 422/444 support
760 - polyphase kaiser windowed sinc and blackman nuttall windowed sinc audio resample
761 - better image scaling
763 - correctly interleave packets during encoding
764 - VIS optimized motion compensation
765 - intra_dc_precision>0 encoding support
766 - support reuse of motion vectors/MB types/field select values of the source video
767 - more accurate deblock filter
769 - many optimizations and bugfixes
770 - FunCom ISS audio file demuxer and according ADPCM decoding
775 - MPEG-2 video encoding (Michael)
776 - Id RoQ playback subsystem (Mike Melanson and Tim Ferguson)
777 - Wing Commander III Movie (.mve) file playback subsystem (Mike Melanson
779 - Xan DPCM audio decoder (Mario Brito)
780 - Interplay MVE playback subsystem (Mike Melanson)
781 - Duck DK3 and DK4 ADPCM audio decoders (Mike Melanson)
786 - RealAudio 1.0 (14_4) and 2.0 (28_8) native decoders. Author unknown, code from mplayerhq
787 (originally from public domain player for Amiga at http://www.honeypot.net/audio)
788 - current version now also compiles with older GCC (Fabrice)
789 - 4X multimedia playback system including 4xm file demuxer (Mike
790 Melanson), and 4X video and audio codecs (Michael)
791 - Creative YUV (CYUV) decoder (Mike Melanson)
792 - FFV1 codec (our very simple lossless intra only codec, compresses much better
793 than HuffYUV) (Michael)
794 - ASV1 (Asus), H.264, Intel indeo3 codecs have been added (various)
795 - tiny PNG encoder and decoder, tiny GIF decoder, PAM decoder (PPM with
796 alpha support), JPEG YUV colorspace support. (Fabrice Bellard)
797 - ffplay has been replaced with a newer version which uses SDL (optionally)
798 for multiplatform support (Fabrice)
799 - Sorenson Version 3 codec (SVQ3) support has been added (decoding only) - donated
801 - AMR format has been added (Johannes Carlsson)
802 - 3GP support has been added (Johannes Carlsson)
803 - VP3 codec has been added (Mike Melanson)
804 - more MPEG-1/2 fixes
805 - better multiplatform support, MS Visual Studio fixes (various)
806 - AltiVec optimizations (Magnus Damn and others)
807 - SH4 processor support has been added (BERO)
808 - new public interfaces (avcodec_get_pix_fmt) (Roman Shaposhnick)
809 - VOB streaming support (Brian Foley)
810 - better MP3 autodetection (Andriy Rysin)
811 - qpel encoding (Michael)
812 - 4mv+b frames encoding finally fixed (Michael)
813 - chroma ME (Michael)
814 - 5 comparison functions for ME (Michael)
815 - B-frame encoding speedup (Michael)
816 - WMV2 codec (unfinished - Michael)
817 - user specified diamond size for EPZS (Michael)
818 - Playstation STR playback subsystem, still experimental (Mike and Michael)
819 - ASV2 codec (Michael)
820 - CLJR decoder (Alex)
822 .. And lots more new enhancements and fixes.
827 - completely new integer only MPEG audio layer 1/2/3 decoder rewritten
829 - Recoded DCT and motion vector search with gcc (no longer depends on nasm)
830 - fix quantization bug in AC3 encoder
831 - added PCM codecs and format. Corrected WAV/AVI/ASF PCM issues
832 - added prototype ffplay program
833 - added GOB header parsing on H.263/H.263+ decoder (Juanjo)
834 - bug fix on MCBPC tables of H.263 (Juanjo)
835 - bug fix on DC coefficients of H.263 (Juanjo)
836 - added Advanced Prediction Mode on H.263/H.263+ decoder (Juanjo)
837 - now we can decode H.263 streams found in QuickTime files (Juanjo)
838 - now we can decode H.263 streams found in VIVO v1 files(Juanjo)
839 - preliminary RTP "friendly" mode for H.263/H.263+ coding. (Juanjo)
840 - added GOB header for H.263/H.263+ coding on RTP mode (Juanjo)
841 - now H.263 picture size is returned on the first decoded frame (Juanjo)
842 - added first regression tests
843 - added MPEG-2 TS demuxer
844 - new demux API for libav
845 - more accurate and faster IDCT (Michael)
846 - faster and entropy-controlled motion search (Michael)
847 - two pass video encoding (Michael)
848 - new video rate control (Michael)
849 - added MSMPEG4V1, MSMPEGV2 and WMV1 support (Michael)
850 - great performance improvement of video encoders and decoders (Michael)
851 - new and faster bit readers and vlc parsers (Michael)
852 - high quality encoding mode: tries all macroblock/VLC types (Michael)
853 - added DV video decoder
854 - preliminary RTP/RTSP support in ffserver and libavformat
855 - H.263+ AIC decoding/encoding support (Juanjo)
856 - VCD MPEG-PS mode (Juanjo)
857 - PSNR stuff (Juanjo)
858 - simple stats output (Juanjo)
859 - 16-bit and 15-bit RGB/BGR/GBR support (Bisqwit)
864 - some header fixes (Zdenek Kabelac <kabi at informatics.muni.cz>)
865 - many MMX optimizations (Nick Kurshev <nickols_k at mail.ru>)
866 - added configure system (actually a small shell script)
867 - added MPEG audio layer 1/2/3 decoding using LGPL'ed mpglib by
868 Michael Hipp (temporary solution - waiting for integer only
870 - fixed VIDIOCSYNC interrupt
871 - added Intel H.263 decoding support ('I263' AVI fourCC)
872 - added Real Video 1.0 decoding (needs further testing)
873 - simplified image formats again. Added PGM format (=grey
874 pgm). Renamed old PGM to PGMYUV.
875 - fixed msmpeg4 slice issues (tell me if you still find problems)
876 - fixed OpenDivX bugs with newer versions (added VOL header decoding)
877 - added support for MPlayer interface
878 - added macroblock skip optimization
879 - added MJPEG decoder
880 - added mmx/mmxext IDCT from libmpeg2
881 - added pgmyuvpipe, ppm, and ppm_pipe formats (original patch by Celer
882 <celer at shell.scrypt.net>)
883 - added pixel format conversion layer (e.g. for MJPEG or PPM)
884 - added deinterlacing option
886 - MPEG-4 vol header fixes (Jonathan Marsden <snmjbm at pacbell.net>)
887 - ARM optimizations (Lionel Ulmer <lionel.ulmer at free.fr>).
888 - Windows porting of file converter
889 - added MJPEG raw format (input/ouput)
890 - added JPEG image format support (input/output)
895 - fixed some std header definitions (Bjorn Lindgren
896 <bjorn.e.lindgren at telia.com>).
897 - added MPEG demuxer (MPEG-1 and 2 compatible).
899 - added prototype RM demuxer
900 - added AC3 decoding (done with libac3 by Aaron Holtzman)
901 - added decoding codec parameter guessing (.e.g. for MPEG, because the
902 header does not include them)
903 - fixed header generation in MPEG-1, AVI and ASF muxer: wmplayer can now
904 play them (only tested video)
905 - fixed H.263 white bug
906 - fixed phase rounding in img resample filter
907 - add MMX code for polyphase img resample filter
908 - added CPU autodetection
909 - added generic title/author/copyright/comment string handling (ASF and RM
911 - added SWF demux to extract MP3 track (not usable yet because no MP3
913 - added fractional frame rate support
914 - codecs are no longer searched by read_header() (should fix ffserver
920 - BGR24 patch (initial patch by Jeroen Vreeken <pe1rxq at amsat.org>)
921 - fixed raw yuv output
922 - added motion rounding support in MPEG-4
923 - fixed motion bug rounding in MSMPEG4
924 - added B-frame handling in video core
925 - added full MPEG-1 decoding support
926 - added partial (frame only) MPEG-2 support
927 - changed the FOURCC code for H.263 to "U263" to be able to see the
928 +AVI/H.263 file with the UB Video H.263+ decoder. MPlayer works with
929 this +codec ;) (JuanJo).
930 - Halfpel motion estimation after MB type selection (JuanJo)
931 - added pgm and .Y.U.V output format
932 - suppressed 'img:' protocol. Simply use: /tmp/test%d.[pgm|Y] as input or
934 - added pgmpipe I/O format (original patch from Martin Aumueller
935 <lists at reserv.at>, but changed completely since we use a format
936 instead of a protocol)
941 - added H.263/MPEG-4/MSMPEG4 decoding support. MPEG-4 decoding support
942 (for OpenDivX) is almost complete: 8x8 MVs and rounding are
943 missing. MSMPEG4 support is complete.
944 - added prototype MPEG-1 decoder. Only I- and P-frames handled yet (it
945 can decode ffmpeg MPEGs :-)).
946 - added libavcodec API documentation (see apiexample.c).
947 - fixed image polyphase bug (the bottom of some images could be
949 - added support for non clipped motion vectors (decoding only)
950 and image sizes non-multiple of 16
951 - added support for AC prediction (decoding only)
952 - added file overwrite confirmation (can be disabled with -y)
953 - added custom size picture to H.263 using H.263+ (Juanjo)
958 - added MSMPEG4 (aka DivX) compatible encoder. Changed default codec
959 of AVI and ASF to DIV3.
960 - added -me option to set motion estimation method
961 (default=log). suppressed redundant -hq option.
962 - added options -acodec and -vcodec to force a given codec (useful for
965 - improved dct_quantize speed
966 - factorized some motion estimation code
971 - removing grab code from ffserver and moved it to ffmpeg. Added
972 multistream support to ffmpeg.
973 - added timeshifting support for live feeds (option ?date=xxx in the
975 - added high quality image resize code with polyphase filter (need
976 mmx/see optimization). Enable multiple image size support in ffserver.
977 - added multi live feed support in ffserver
978 - suppressed master feature from ffserver (it should be done with an
979 external program which opens the .ffm url and writes it to another
981 - added preliminary support for video stream parsing (WAV and AVI half
982 done). Added proper support for audio/video file conversion in
984 - added preliminary support for video file sending from ffserver
985 - redesigning I/O subsystem: now using URL based input and output
987 - added WAV format support
988 - added "tty user interface" to ffmpeg to stop grabbing gracefully
989 - added MMX/SSE optimizations to SAD (Sums of Absolutes Differences)
990 (Juan J. Sierralta P. a.k.a. "Juanjo" <juanjo at atmlab.utfsm.cl>)
991 - added MMX DCT from mpeg2_movie 1.5 (Juanjo)
992 - added new motion estimation algorithms, log and phods (Juanjo)
993 - changed directories: libav for format handling, libavcodec for
999 - added stereo in MPEG audio encoder
1004 - added 'high quality' mode which use motion vectors. It can be used in
1005 real time at low resolution.
1006 - fixed rounding problems which caused quality problems at high
1007 bitrates and large GOP size
1010 version 0.3.2: small fixes
1016 version 0.3.1: added avi/divx support
1019 - added MPEG-4 codec compatible with OpenDivX. It is based on the H.263 codec
1020 - added sound for flash format (not tested)
1023 version 0.3: initial public release