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
40 - shuffleplanes filter
41 - replaygain data export
42 - Alias PIX image encoder and decoder
43 - BRender PIX image decoder
44 - Amazing Studio PAF playback support
46 - BMP standalone parser
47 - OpenEXR image decoder
48 - support encoding and decoding 4-channel SGI images
49 - support decoding 16-bit RLE SGI images
51 - LucasArts SMUSH SANM video decoder
52 - LucasArts SMUSH VIMA audio decoder (ADPCM)
53 - LucasArts SMUSH demuxer
54 - MP2 encoding via TwoLAME
56 - Silicon Graphics RLE 8-bit video decoder
57 - Silicon Graphics Motion Video Compressor 1 & 2 decoder
58 - Silicon Graphics Movie demuxer
59 - On2 AVC (Audio for Video) decoder
60 - support for decoding through DXVA2 in avconv
61 - libbs2b-based stereo-to-binaural audio filter
63 - display matrix export and rotation API
64 - drop avserver, it was unmaintained for years and largely broken
66 - request Icecast metadata by default
67 - support for using metadata in stream specifiers in avtools
73 - support ID3v2 tags in ASF files
74 - reference-counting for AVFrame and AVPacket data
75 - avconv now fails when input options are used for output file
77 - avconv options -filter_script and -filter_complex_script, which allow a
78 filtergraph description to be read from a file
79 - uniform options syntax across all filters
82 - asetpts filter (same as setpts, but for audio)
83 - trim and atrim filters
84 - avconv -t and -ss (output-only) options are now sample-accurate when
86 - Matroska muxer can now put the index at the beginning of the file.
87 - avconv -deinterlace option removed, the yadif filter should be used instead
88 - Apple Intermediate Codec decoder
89 - Escape 130 video decoder
90 - support for slice multithreading in libavfilter
91 - VC-1 interlaced B-frame support
92 - support for WavPack muxing (raw and in Matroska)
94 - WavPack encoding through libwavpack
95 - Added the -n parameter to avconv
97 - when transcoding with avconv (i.e. not streamcopying), -ss is now accurate
98 even when used as an input option. Previous behavior can be restored with
99 the -noaccurate_seek option.
100 - avconv -t option can now be used for inputs, to limit the duration of
101 data read from an input file
102 - Voxware MetaSound decoder
104 - Error Resilient AAC syntax (ER AAC LC) decoding
105 - Low Delay AAC (ER AAC LD) decoding
106 - mux chapters in ASF files
107 - Opus in Ogg demuxing
108 - Enhanced Low Delay AAC (ER AAC ELD) decoding (no LD SBR support)
110 - HNM version 4 demuxer and video decoder
112 - raw HEVC, HEVC in MOV/MP4, HEVC in Matroska, HEVC in MPEG-TS demuxing
113 - remove avplay -vismv option, which has not worked for a long time
115 - setsar/setdar filters now support variables in ratio expressions
116 - dar variable in the scale filter now returns the actual DAR (i.e. a * sar)
118 - support for decoding through VDPAU in avconv (the -hwaccel option)
119 - remove mp3_header_(de)compress bitstream filters
120 - stereoscopic 3d metadata handling
121 - png standalone parser
122 - WebP encoding via libwebp
125 - Mirillis FIC video decoder
127 - compand audio filter
131 - av_basename and av_dirname
132 - adobe and limelight publisher authentication in RTMP
133 - VDPAU hardware acceleration through normal hwaccel
138 - ashowinfo audio filter
139 - 24-bit FLAC encoding
140 - audio volume filter
141 - deprecated the avconv -vol option. the volume filter is to be used instead.
142 - multi-channel ALAC encoding up to 7.1
143 - TAK demuxer, parser, and decoder
144 - adaptive frame-level multithreading for H.264
148 - metadata (INFO tag) support in WAV muxer
149 - support for building DLLs using MSVC
150 - remove avserver daemon mode
151 - support building on the Plan 9 operating system
152 - ffv1: support version 1.3
157 - XWD encoder and decoder
158 - Support for fragmentation in the mov/mp4 muxer
159 - ISMV (Smooth Streaming) muxer
160 - CDXL demuxer and decoder
161 - Apple ProRes encoder
162 - Sun Rasterfile Encoder
164 - ID3v2 attached pictures reading and writing
165 - WMA Lossless decoder
167 - RealAudio Lossless decoder
169 - drop support for avconv without libavfilter
170 - add libavresample audio conversion library
171 - audio filters support in libavfilter and avconv
175 - avprobe output is now standard INI or JSON. The old format can still
176 be used with -of old.
177 - Indeo Audio decoder
178 - channelsplit audio filter
179 - RTMPT protocol support
180 - iLBC encoding/decoding via libilbc
181 - Microsoft Screen 1 decoder
183 - audio channel mapping filter
184 - Microsoft ATC Screen decoder
186 - TechSmith Screen Codec 2 decoder
187 - AAC encoding via libfdk-aac
188 - Microsoft Expression Encoder Screen decoder
189 - RTMPS protocol support
190 - RTMPTS protocol support
191 - JPEG 2000 encoding support through OpenJPEG
192 - G.723.1 demuxer and decoder
193 - RTMPE protocol support
194 - RTMPTE protocol support
195 - Canopus Lossless Codec decoder
196 - avconv -shortest option is now per-output file,
197 -pass and -passlogfile are now per-output stream
199 - Microsoft Screen 2 decoder
200 - RTP depacketization of JPEG
201 - Smooth Streaming live segmenter muxer
202 - RTP packetization of JPEG
203 - Opus decoder and encoder using libopus
204 - remove -same_quant, it hasn't worked for years
205 - support for building with MSVC
216 - Automatic thread count based on detection number of (available) CPU cores
217 - Deprecate libpostproc. If desired, the switch --enable-postproc will
218 enable it but it may be removed in a later Libav release.
219 - rv34: frame-level multi-threading
220 - optimized iMDCT transform on x86 using SSE for for mpegaudiodec
226 - Flash Screen Video 2 decoder
227 - ffplay/ffprobe/ffserver renamed to avplay/avprobe/avserver
228 - ffmpeg deprecated, added avconv, which is almost the same for now, except
229 for a few incompatible changes in the options, which will hopefully make them
230 easier to use. The changes are:
231 * The options placement is now strictly enforced! While in theory the
232 options for ffmpeg should be given in [input options] -i INPUT [output
233 options] OUTPUT order, in practice it was possible to give output options
234 before the -i and it mostly worked. Except when it didn't - the behavior was
235 a bit inconsistent. In avconv, it is not possible to mix input and output
236 options. All non-global options are reset after an input or output filename.
237 * All per-file options are now truly per-file - they apply only to the next
238 input or output file and specifying different values for different files
239 will now work properly (notably -ss and -t options).
240 * All per-stream options are now truly per-stream - it is possible to
241 specify which stream(s) should a given option apply to. See the Stream
242 specifiers section in the avconv manual for details.
243 * In ffmpeg some options (like -newvideo/-newaudio/...) are irregular in the
244 sense that they're specified after the output filename instead of before,
245 like all other options. In avconv this irregularity is removed, all options
246 apply to the next input or output file.
247 * -newvideo/-newaudio/-newsubtitle options were removed. Not only were they
248 irregular and highly confusing, they were also redundant. In avconv the -map
249 option will create new streams in the output file and map input streams to
250 them. E.g. avconv -i INPUT -map 0 OUTPUT will create an output stream for
251 each stream in the first input file.
252 * The -map option now has slightly different and more powerful syntax:
253 + Colons (':') are used to separate file index/stream type/stream index
254 instead of dots. Comma (',') is used to separate the sync stream instead
255 of colon.. This is done for consistency with other options.
256 + It's possible to specify stream type. E.g. -map 0:a:2 creates an
257 output stream from the third input audio stream.
258 + Omitting the stream index now maps all the streams of the given type,
259 not just the first. E.g. -map 0:s creates output streams for all the
260 subtitle streams in the first input file.
261 + Since -map can now match multiple streams, negative mappings were
262 introduced. Negative mappings disable some streams from an already
263 defined map. E.g. '-map 0 -map -0:a:1' means 'create output streams for
264 all the stream in the first input file, except for the second audio
266 * There is a new option -c (or -codec) for choosing the decoder/encoder to
267 use, which allows to precisely specify target stream(s) consistently with
268 other options. E.g. -c:v lib264 sets the codec for all video streams, -c:a:0
269 libvorbis sets the codec for the first audio stream and -c copy copies all
270 the streams without reencoding. Old -vcodec/-acodec/-scodec options are now
272 * It is now possible to precisely specify which stream should an AVOption
273 apply to. E.g. -b:v:0 2M sets the bitrate for the first video stream, while
274 -b:a 128k sets the bitrate for all audio streams. Note that the old -ab 128k
275 syntax is deprecated and will stop working soon.
276 * -map_chapters now takes only an input file index and applies to the next
277 output file. This is consistent with how all the other options work.
278 * -map_metadata now takes only an input metadata specifier and applies to
279 the next output file. Output metadata specifier is now part of the option
280 name, similarly to the AVOptions/map/codec feature above.
281 * -metadata can now be used to set metadata on streams and chapters, e.g.
282 -metadata:s:1 language=eng sets the language of the first stream to 'eng'.
283 This made -vlang/-alang/-slang options redundant, so they were removed.
284 * -qscale option now uses stream specifiers and applies to all streams, not
285 just video. I.e. plain -qscale number would now apply to all streams. To get
286 the old behavior, use -qscale:v. Also there is now a shortcut -q for -qscale
287 and -aq is now an alias for -q:a.
288 * -vbsf/-absf/-sbsf options were removed and replaced by a -bsf option which
289 uses stream specifiers. Use -bsf:v/a/s instead of the old options.
290 * -itsscale option now uses stream specifiers, so its argument is only the
292 * -intra option was removed, use -g 0 for the same effect.
293 * -psnr option was removed, use -flags +psnr for the same effect.
294 * -vf option is now an alias to the new -filter option, which uses stream specifiers.
295 * -vframes/-aframes/-dframes options are now aliases to the new -frames option.
296 * -vtag/-atag/-stag options are now aliases to the new -tag option.
298 - Windows Media Image decoder
302 - libcdio-paranoia input device for audio CD grabbing
304 - Apple ProRes decoder
305 - CELT in Ogg demuxing
306 - VC-1 interlaced decoding
307 - lut, lutrgb, and lutyuv filters
310 - Speex encoding via libspeex
311 - 4:2:2 H.264 decoding support
312 - 4:2:2 and 4:4:4 H.264 encoding with libx264
313 - Pulseaudio input device
314 - replacement Indeo 3 decoder
315 - TLS/SSL and HTTPS protocol support
316 - AVOptions API rewritten and documented
317 - most of CODEC_FLAG2_*, some CODEC_FLAG_* and many codec-specific fields in
318 AVCodecContext deprecated. Codec private options should be used instead.
319 - Properly working defaults in libx264 wrapper, support for native presets.
320 - Encrypted OMA files support
321 - Discworld II BMV decoding support
323 - OS X Video Decoder Acceleration (VDA) support
324 - CRI ADX audio format muxer and demuxer
325 - Playstation Portable PMP format demuxer
326 - PCM format support in OMA demuxer
328 - Dxtory capture format decoder
329 - v410 QuickTime uncompressed 4:4:4 10-bit encoder and decoder
331 - Simple segmenting muxer
338 - E-AC-3 audio encoder
339 - ac3enc: add channel coupling support
340 - floating-point sample format support for (E-)AC-3, DCA, AAC, Vorbis decoders
341 - H.264/MPEG frame-level multithreading
342 - av_metadata_* functions renamed to av_dict_* and moved to libavutil
343 - 4:4:4 H.264 decoding support
344 - 10-bit H.264 optimizations for x86
345 - bump libswscale for recently reported ABI break
350 - VP8 frame-level multithreading
351 - NEON optimizations for VP8
352 - removed a lot of deprecated API cruft
353 - FFT and IMDCT optimizations for AVX (Sandy Bridge) processors
355 - SMPTE 302M AES3 audio decoder
356 - ffmpeg no longer quits after the 'q' key is pressed; use 'ctrl+c' instead
357 - 9bit and 10bit per sample support in the H.264 decoder
362 - WebM support in Matroska de/muxer
363 - low overhead Ogg muxing
365 - VP8 de/encoding via libvpx
366 - Demuxer for On2's IVF format
367 - Pictor/PC Paint decoder
369 - libfaad2 wrapper removed
370 - DTS-ES extension (XCh) decoding support
372 - RTSP tunneling over HTTP
373 - RTP depacketization of SVQ3
374 - -strict inofficial replaced by -strict unofficial
375 - ffplay -exitonkeydown and -exitonmousedown options added
376 - native GSM / GSM MS decoder
377 - RTP depacketization of QDM2
378 - ANSI/ASCII art playback system
379 - Lego Mindstorms RSO de/muxer
380 - SubRip subtitle file muxer and demuxer
381 - Chinese AVS encoding via libxavs
382 - ffprobe -show_packets option added
383 - RTP packetization of Theora and Vorbis
384 - RTP depacketization of MP4A-LATM
385 - RTP packetization and depacketization of VP8
387 - Apple HTTP Live Streaming demuxer
390 - G.722 ADPCM audio encoder/decoder
393 - frei0r wrapper filter
394 - change crop filter syntax to width:height:x:y
395 - make the crop filter accept parametric expressions
396 - make ffprobe accept AVFormatContext options
399 - Demuxer for Leitch/Harris' VR native stream format (LXF)
400 - RTP depacketization of the X-QT QuickTime format
401 - SAP (Session Announcement Protocol, RFC 2974) muxer and demuxer
403 - ffmpeg -crop* options removed
404 - transpose filter added
405 - ffmpeg -force_key_frames option added
406 - demuxer for receiving raw rtp:// URLs without an SDP description
407 - single stream LATM/LOAS decoder
408 - setpts filter added
409 - Win64 support for optimized x86 assembly functions
410 - MJPEG/AVI1 to JPEG/JFIF bitstream filter
411 - ASS subtitle encoder and decoder
412 - IEC 61937 encapsulation for E-AC-3, TrueHD, DTS-HD (for HDMI passthrough)
413 - overlay filter added
414 - rename aspect filter to setdar, and pixelaspect to setsar
416 - Mobotix .mxg demuxer
417 - frei0r source added
418 - hqdn3d filter added
419 - RTP depacketization of QCELP
421 - gradfun filter added
423 - replace the ocv_smooth filter with a more generic ocv filter
424 - Windows Televison (WTV) demuxer
425 - FFmpeg metadata format muxer and demuxer
426 - SubRip (srt) subtitle decoder
427 - floating-point AC-3 encoder added
429 - ffmpeg -copytb option added
431 - Wing Commander IV movies decoder added
433 - Bink version 'b' audio and video decoder
434 - Bitmap Brothers JV playback system
435 - Apple HTTP Live Streaming protocol handler
436 - sndio support for playback and record
437 - Linux framebuffer input device added
438 - Chronomaster DFA decoder
439 - Mobotix MxPEG decoder
440 - AAC encoding via libvo-aacenc
441 - AMR-WB encoding via libvo-amrwbenc
443 - fieldorder video filter added
448 - PB-frame decoding for H.263
449 - deprecated vhook subsystem removed
450 - deprecated old scaler removed
452 - Alpha channel scaler
454 - RTP packetization of H.263
455 - RTP packetization of AMR
456 - RTP depacketization of Vorbis
457 - CorePNG decoding support
458 - Cook multichannel decoding support
459 - introduced avlanguage helpers in libavformat
460 - 8088flex TMV demuxer and decoder
461 - per-stream language-tags extraction in asfdec
462 - V210 decoder and encoder
463 - remaining GPL parts in AC-3 decoder converted to LGPL
465 - SoX native format muxer and demuxer
466 - AMR-NB decoding/encoding, AMR-WB decoding via OpenCORE libraries
468 - Electronic Arts Madcow decoder
469 - DivX (XSUB) subtitle encoder
470 - nonfree libamr support for AMR-NB/WB decoding/encoding removed
471 - experimental AAC encoder
472 - RTP depacketization of ASF and RTSP from WMS servers
473 - RTMP support in libavformat
474 - noX handling for OPT_BOOL X options
476 - IEC-61937 compatible Muxer
478 - Bluray (PGS) subtitle decoder
479 - LPCM support in MPEG-TS (HDMV RID as found on Blu-ray disks)
481 - Core Audio Format demuxer
483 - MD STUDIO audio demuxer
484 - RF64 support in WAV demuxer
485 - MPEG-4 Audio Lossless Coding (ALS) decoder
486 - -formats option split into -formats, -codecs, -bsfs, and -protocols
488 - CDG demuxer and decoder
490 - Auravision Aura 1 and 2 decoders
491 - Deluxe Paint Animation playback system
493 - Adobe Filmstrip muxer and demuxer
494 - RTP depacketization of H.263
495 - Bink demuxer and audio/video decoders
496 - enable symbol versioning by default for linkers that support it
497 - IFF PBM/ILBM bitmap decoder
500 - RTP depacketization of AMR
506 - Kega Game Video (KGV1) decoder
507 - VorbisComment writing for FLAC, Ogg FLAC and Ogg Speex files
508 - RTP depacketization of Theora
509 - HTTP Digest authentication
510 - RTMP/RTMPT/RTMPS/RTMPE/RTMPTE protocol support via librtmp
511 - Psygnosis YOP demuxer and video decoder
512 - spectral extension support in the E-AC-3 decoder
513 - unsharp video filter
514 - RTP hinting in the mov/3gp/mp4 muxer
515 - Dirac in Ogg demuxing
516 - seek to keyframes in Ogg
517 - 4:2:2 and 4:4:4 Theora decoding
518 - 35% faster VP3/Theora decoding
519 - faster AAC decoding
520 - faster H.264 decoding
521 - RealAudio 1.0 (14.4K) encoder
526 - DV50 AKA DVCPRO50 encoder, decoder, muxer and demuxer
527 - TechSmith Camtasia (TSCC) video decoder
528 - IBM Ultimotion (ULTI) video decoder
529 - Sierra Online audio file demuxer and decoder
530 - Apple QuickDraw (qdrw) video decoder
531 - Creative ADPCM audio decoder (16 bits as well as 8 bits schemes)
532 - Electronic Arts Multimedia (WVE/UV2/etc.) file demuxer
533 - Miro VideoXL (VIXL) video decoder
534 - H.261 video encoder
536 - Nullsoft Video (NSV) file demuxer
537 - Shorten audio decoder
539 - Apple Lossless Audio Codec (ALAC) decoder
540 - Winnov WNV1 video decoder
541 - Autodesk Animator Studio Codec (AASC) decoder
542 - Indeo 2 video decoder
543 - Fraps FPS1 video decoder
544 - Snow video encoder/decoder
545 - Sonic audio encoder/decoder
546 - Vorbis audio decoder
547 - Macromedia ADPCM decoder
548 - Duck TrueMotion 2 video decoder
549 - support for decoding FLX and DTA extensions in FLIC files
550 - H.264 custom quantization matrices support
551 - ffserver fixed, it should now be usable again
553 - Real Cooker audio decoder
554 - TrueSpeech audio decoder
555 - WMA2 audio decoder fixed, now all files should play correctly
556 - RealAudio 14.4 and 28.8 decoders fixed
558 - build system improvements
559 - tabs and trailing whitespace removed from the codebase
560 - CamStudio video decoder
561 - AIFF/AIFF-C audio format, encoding and decoding
562 - ADTS AAC file reading and writing
563 - Creative VOC file reading and writing
564 - American Laser Games multimedia (*.mm) playback system
565 - Zip Motion Blocks Video decoder
566 - improved Theora/VP3 decoder
567 - True Audio (TTA) decoder
568 - AVS demuxer and video decoder
570 - Smacker demuxer and decoder
571 - NuppelVideo/MythTV demuxer and RTjpeg decoder
573 - MPEG-2 intra VLC support
574 - MPEG-2 4:2:2 encoder
575 - Flash Screen Video decoder
577 - Chinese AVS decoder
580 - VC-1/WMV3/WMV9 video decoder
583 - VMware video decoder
586 - WavPack lossless audio decoder
587 - Targa (.TGA) picture decoder
588 - Vorbis audio encoder
589 - Delphine Software .cin demuxer/audio and video decoder
590 - Tiertex .seq demuxer/video decoder
592 - TIFF picture encoder and decoder
593 - GIF picture decoder
594 - Intel Music Coder decoder
595 - Zip Motion Blocks Video encoder
597 - Flash Screen Video encoder
598 - Theora encoding via libtheora
601 - GSM-MS encoder and decoder
603 - DXA demuxer and decoder
605 - Gamecube movie (.THP) playback system
606 - Blackfin optimizations
607 - Interplay C93 demuxer and video decoder
608 - Bethsoft VID demuxer and video decoder
611 - V.Flash PTX decoder
612 - RoQ muxer, RoQ audio encoder
613 - Renderware TXD demuxer and decoder
614 - extern C declarations for C++ removed from headers
615 - sws_flags command line option
619 - OS/2 support removed and restored again
622 - additional SPARC (VIS) optimizations
624 - slice-based parallel H.264 decoding
625 - Monkey's Audio demuxer and decoder
626 - AMV audio and video decoder
628 - H.264 PAFF decoding
629 - Nellymoser ASAO decoder
630 - Beam Software SIFF demuxer and decoder
631 - libvorbis Vorbis decoding removed in favor of native decoder
632 - IntraX8 (J-Frame) subdecoder for WMV2 and VC-1
633 - Ogg (Theora, Vorbis and FLAC) muxer
634 - The "device" muxers and demuxers are now in a new libavdevice library
635 - PC Paintbrush PCX decoder
636 - Sun Rasterfile decoder
637 - TechnoTrend PVA demuxer
638 - Linux Media Labs MPEG-4 (LMLM4) demuxer
639 - AVM2 (Flash 9) SWF muxer
640 - QT variant of IMA ADPCM encoder
642 - iPod/iPhone compatible mp4 muxer
644 - MSN TCP Webcam stream demuxer
645 - RL2 demuxer / decoder
648 - non-recursive Makefiles
650 - MAXIS EA XA (.xa) demuxer / decoder
654 - Electronic Arts CMV decoder
655 - Motion Pixels Video decoder
656 - Motion Pixels MVI demuxer
657 - removed animated GIF decoder/demuxer
658 - D-Cinema audio muxer
659 - Electronic Arts TGV decoder
660 - Apple Lossless Audio Codec (ALAC) encoder
662 - floating point PCM encoder/decoder
664 - DV100 AKA DVCPRO HD decoder and demuxer
665 - E-AC-3 support added to AC-3 decoder
666 - Nellymoser ASAO encoder
667 - ASS and SSA demuxer and muxer
668 - liba52 wrapper removed
669 - SVQ3 watermark decoding support
670 - Speex decoding via libspeex
671 - Electronic Arts TGQ decoder
673 - QCELP / PureVoice decoder
675 - hybrid WavPack support
676 - R3D REDCODE demuxer
677 - ALSA support for playback and record
678 - Electronic Arts TQI decoder
679 - OpenJPEG based JPEG 2000 decoder
680 - NC (NC4600) camera file demuxer
681 - Gopher client support
683 - generic metadata API
688 - DV encoder, DV muxer
689 - Microsoft RLE video decoder
690 - Microsoft Video-1 decoder
691 - Apple Animation (RLE) decoder
692 - Apple Graphics (SMC) decoder
693 - Apple Video (RPZA) decoder
695 - Sega FILM (CPK) file demuxer
696 - Westwood multimedia support (VQA & AUD files)
697 - Id Quake II CIN playback support
699 - FLIC playback support
700 - RealVideo 2.0 (RV20) decoder
701 - Duck TrueMotion v1 (DUCK) video decoder
702 - Sierra VMD demuxer and video decoder
703 - MSZH and ZLIB decoder support
707 - rate distortion optimal cbp support
708 - rate distorted optimal ac prediction for MPEG-4
709 - rate distorted optimal lambda->qp support
710 - AAC encoding with libfaac
711 - Sunplus JPEG codec (SP5X) support
712 - use Lagrange multipler instead of QP for ratecontrol
713 - Theora/VP3 decoding support
714 - XA and ADX ADPCM codecs
715 - export MPEG-2 active display area / pan scan
716 - Add support for configuring with IBM XLC
717 - floating point AAN DCT
718 - initial support for zygo video (not complete)
720 - new audio/video parser API
722 - av_read_frame() and av_seek_frame() support
723 - missing last frame fixes
724 - seek by mouse in ffplay
725 - noise reduction of DCT coefficients
726 - H.263 OBMC & 4MV support
727 - H.263 alternative inter vlc support
729 - H.263 slice structured mode
730 - interlaced DCT support for MPEG-2 encoding
731 - stuffing to stay above min_bitrate
732 - MB type & QP visualization
733 - frame stepping for ffplay
734 - interlaced motion estimation
735 - alternate scantable support
736 - SVCD scan offset support
739 - quantizer noise shaping
740 - G.726 ADPCM audio codec
742 - multithreaded/SMP motion estimation
743 - multithreaded/SMP encoding for MPEG-1/MPEG-2/MPEG-4/H.263
744 - multithreaded/SMP decoding for MPEG-2
746 - Metrowerks CodeWarrior suppport
747 - H.263+ custom pcf support
748 - nicer output for 'ffmpeg -formats'
750 - SGI image format, encoding and decoding
751 - H.264 loop filter support
752 - H.264 CABAC support
753 - nicer looking arrows for the motion vector visualization
754 - improved VCD support
755 - audio timestamp drift compensation
756 - MPEG-2 YUV 422/444 support
757 - polyphase kaiser windowed sinc and blackman nuttall windowed sinc audio resample
758 - better image scaling
760 - correctly interleave packets during encoding
761 - VIS optimized motion compensation
762 - intra_dc_precision>0 encoding support
763 - support reuse of motion vectors/MB types/field select values of the source video
764 - more accurate deblock filter
766 - many optimizations and bugfixes
767 - FunCom ISS audio file demuxer and according ADPCM decoding
772 - MPEG-2 video encoding (Michael)
773 - Id RoQ playback subsystem (Mike Melanson and Tim Ferguson)
774 - Wing Commander III Movie (.mve) file playback subsystem (Mike Melanson
776 - Xan DPCM audio decoder (Mario Brito)
777 - Interplay MVE playback subsystem (Mike Melanson)
778 - Duck DK3 and DK4 ADPCM audio decoders (Mike Melanson)
783 - RealAudio 1.0 (14_4) and 2.0 (28_8) native decoders. Author unknown, code from mplayerhq
784 (originally from public domain player for Amiga at http://www.honeypot.net/audio)
785 - current version now also compiles with older GCC (Fabrice)
786 - 4X multimedia playback system including 4xm file demuxer (Mike
787 Melanson), and 4X video and audio codecs (Michael)
788 - Creative YUV (CYUV) decoder (Mike Melanson)
789 - FFV1 codec (our very simple lossless intra only codec, compresses much better
790 than HuffYUV) (Michael)
791 - ASV1 (Asus), H.264, Intel indeo3 codecs have been added (various)
792 - tiny PNG encoder and decoder, tiny GIF decoder, PAM decoder (PPM with
793 alpha support), JPEG YUV colorspace support. (Fabrice Bellard)
794 - ffplay has been replaced with a newer version which uses SDL (optionally)
795 for multiplatform support (Fabrice)
796 - Sorenson Version 3 codec (SVQ3) support has been added (decoding only) - donated
798 - AMR format has been added (Johannes Carlsson)
799 - 3GP support has been added (Johannes Carlsson)
800 - VP3 codec has been added (Mike Melanson)
801 - more MPEG-1/2 fixes
802 - better multiplatform support, MS Visual Studio fixes (various)
803 - AltiVec optimizations (Magnus Damn and others)
804 - SH4 processor support has been added (BERO)
805 - new public interfaces (avcodec_get_pix_fmt) (Roman Shaposhnick)
806 - VOB streaming support (Brian Foley)
807 - better MP3 autodetection (Andriy Rysin)
808 - qpel encoding (Michael)
809 - 4mv+b frames encoding finally fixed (Michael)
810 - chroma ME (Michael)
811 - 5 comparison functions for ME (Michael)
812 - B-frame encoding speedup (Michael)
813 - WMV2 codec (unfinished - Michael)
814 - user specified diamond size for EPZS (Michael)
815 - Playstation STR playback subsystem, still experimental (Mike and Michael)
816 - ASV2 codec (Michael)
817 - CLJR decoder (Alex)
819 .. And lots more new enhancements and fixes.
824 - completely new integer only MPEG audio layer 1/2/3 decoder rewritten
826 - Recoded DCT and motion vector search with gcc (no longer depends on nasm)
827 - fix quantization bug in AC3 encoder
828 - added PCM codecs and format. Corrected WAV/AVI/ASF PCM issues
829 - added prototype ffplay program
830 - added GOB header parsing on H.263/H.263+ decoder (Juanjo)
831 - bug fix on MCBPC tables of H.263 (Juanjo)
832 - bug fix on DC coefficients of H.263 (Juanjo)
833 - added Advanced Prediction Mode on H.263/H.263+ decoder (Juanjo)
834 - now we can decode H.263 streams found in QuickTime files (Juanjo)
835 - now we can decode H.263 streams found in VIVO v1 files(Juanjo)
836 - preliminary RTP "friendly" mode for H.263/H.263+ coding. (Juanjo)
837 - added GOB header for H.263/H.263+ coding on RTP mode (Juanjo)
838 - now H.263 picture size is returned on the first decoded frame (Juanjo)
839 - added first regression tests
840 - added MPEG-2 TS demuxer
841 - new demux API for libav
842 - more accurate and faster IDCT (Michael)
843 - faster and entropy-controlled motion search (Michael)
844 - two pass video encoding (Michael)
845 - new video rate control (Michael)
846 - added MSMPEG4V1, MSMPEGV2 and WMV1 support (Michael)
847 - great performance improvement of video encoders and decoders (Michael)
848 - new and faster bit readers and vlc parsers (Michael)
849 - high quality encoding mode: tries all macroblock/VLC types (Michael)
850 - added DV video decoder
851 - preliminary RTP/RTSP support in ffserver and libavformat
852 - H.263+ AIC decoding/encoding support (Juanjo)
853 - VCD MPEG-PS mode (Juanjo)
854 - PSNR stuff (Juanjo)
855 - simple stats output (Juanjo)
856 - 16-bit and 15-bit RGB/BGR/GBR support (Bisqwit)
861 - some header fixes (Zdenek Kabelac <kabi at informatics.muni.cz>)
862 - many MMX optimizations (Nick Kurshev <nickols_k at mail.ru>)
863 - added configure system (actually a small shell script)
864 - added MPEG audio layer 1/2/3 decoding using LGPL'ed mpglib by
865 Michael Hipp (temporary solution - waiting for integer only
867 - fixed VIDIOCSYNC interrupt
868 - added Intel H.263 decoding support ('I263' AVI fourCC)
869 - added Real Video 1.0 decoding (needs further testing)
870 - simplified image formats again. Added PGM format (=grey
871 pgm). Renamed old PGM to PGMYUV.
872 - fixed msmpeg4 slice issues (tell me if you still find problems)
873 - fixed OpenDivX bugs with newer versions (added VOL header decoding)
874 - added support for MPlayer interface
875 - added macroblock skip optimization
876 - added MJPEG decoder
877 - added mmx/mmxext IDCT from libmpeg2
878 - added pgmyuvpipe, ppm, and ppm_pipe formats (original patch by Celer
879 <celer at shell.scrypt.net>)
880 - added pixel format conversion layer (e.g. for MJPEG or PPM)
881 - added deinterlacing option
883 - MPEG-4 vol header fixes (Jonathan Marsden <snmjbm at pacbell.net>)
884 - ARM optimizations (Lionel Ulmer <lionel.ulmer at free.fr>).
885 - Windows porting of file converter
886 - added MJPEG raw format (input/ouput)
887 - added JPEG image format support (input/output)
892 - fixed some std header definitions (Bjorn Lindgren
893 <bjorn.e.lindgren at telia.com>).
894 - added MPEG demuxer (MPEG-1 and 2 compatible).
896 - added prototype RM demuxer
897 - added AC3 decoding (done with libac3 by Aaron Holtzman)
898 - added decoding codec parameter guessing (.e.g. for MPEG, because the
899 header does not include them)
900 - fixed header generation in MPEG-1, AVI and ASF muxer: wmplayer can now
901 play them (only tested video)
902 - fixed H.263 white bug
903 - fixed phase rounding in img resample filter
904 - add MMX code for polyphase img resample filter
905 - added CPU autodetection
906 - added generic title/author/copyright/comment string handling (ASF and RM
908 - added SWF demux to extract MP3 track (not usable yet because no MP3
910 - added fractional frame rate support
911 - codecs are no longer searched by read_header() (should fix ffserver
917 - BGR24 patch (initial patch by Jeroen Vreeken <pe1rxq at amsat.org>)
918 - fixed raw yuv output
919 - added motion rounding support in MPEG-4
920 - fixed motion bug rounding in MSMPEG4
921 - added B-frame handling in video core
922 - added full MPEG-1 decoding support
923 - added partial (frame only) MPEG-2 support
924 - changed the FOURCC code for H.263 to "U263" to be able to see the
925 +AVI/H.263 file with the UB Video H.263+ decoder. MPlayer works with
926 this +codec ;) (JuanJo).
927 - Halfpel motion estimation after MB type selection (JuanJo)
928 - added pgm and .Y.U.V output format
929 - suppressed 'img:' protocol. Simply use: /tmp/test%d.[pgm|Y] as input or
931 - added pgmpipe I/O format (original patch from Martin Aumueller
932 <lists at reserv.at>, but changed completely since we use a format
933 instead of a protocol)
938 - added H.263/MPEG-4/MSMPEG4 decoding support. MPEG-4 decoding support
939 (for OpenDivX) is almost complete: 8x8 MVs and rounding are
940 missing. MSMPEG4 support is complete.
941 - added prototype MPEG-1 decoder. Only I- and P-frames handled yet (it
942 can decode ffmpeg MPEGs :-)).
943 - added libavcodec API documentation (see apiexample.c).
944 - fixed image polyphase bug (the bottom of some images could be
946 - added support for non clipped motion vectors (decoding only)
947 and image sizes non-multiple of 16
948 - added support for AC prediction (decoding only)
949 - added file overwrite confirmation (can be disabled with -y)
950 - added custom size picture to H.263 using H.263+ (Juanjo)
955 - added MSMPEG4 (aka DivX) compatible encoder. Changed default codec
956 of AVI and ASF to DIV3.
957 - added -me option to set motion estimation method
958 (default=log). suppressed redundant -hq option.
959 - added options -acodec and -vcodec to force a given codec (useful for
962 - improved dct_quantize speed
963 - factorized some motion estimation code
968 - removing grab code from ffserver and moved it to ffmpeg. Added
969 multistream support to ffmpeg.
970 - added timeshifting support for live feeds (option ?date=xxx in the
972 - added high quality image resize code with polyphase filter (need
973 mmx/see optimization). Enable multiple image size support in ffserver.
974 - added multi live feed support in ffserver
975 - suppressed master feature from ffserver (it should be done with an
976 external program which opens the .ffm url and writes it to another
978 - added preliminary support for video stream parsing (WAV and AVI half
979 done). Added proper support for audio/video file conversion in
981 - added preliminary support for video file sending from ffserver
982 - redesigning I/O subsystem: now using URL based input and output
984 - added WAV format support
985 - added "tty user interface" to ffmpeg to stop grabbing gracefully
986 - added MMX/SSE optimizations to SAD (Sums of Absolutes Differences)
987 (Juan J. Sierralta P. a.k.a. "Juanjo" <juanjo at atmlab.utfsm.cl>)
988 - added MMX DCT from mpeg2_movie 1.5 (Juanjo)
989 - added new motion estimation algorithms, log and phods (Juanjo)
990 - changed directories: libav for format handling, libavcodec for
996 - added stereo in MPEG audio encoder
1001 - added 'high quality' mode which use motion vectors. It can be used in
1002 real time at low resolution.
1003 - fixed rounding problems which caused quality problems at high
1004 bitrates and large GOP size
1007 version 0.3.2: small fixes
1013 version 0.3.1: added avi/divx support
1016 - added MPEG-4 codec compatible with OpenDivX. It is based on the H.263 codec
1017 - added sound for flash format (not tested)
1020 version 0.3: initial public release