1 Entries are sorted chronologically from oldest to youngest within each release,
2 releases are sorted from youngest to oldest.
5 - aliases and defaults for Ogg subtypes (opus, spx)
6 - HEVC/H.265 RTP payload format (draft v6) packetizer and depacketizer
7 - avplay now exits by default at the end of playback
8 - XCB-based screen-grabber
9 - creating DASH compatible fragmented MP4, MPEG-DASH segmenting muxer
10 - H.261 RTP payload format (RFC 4587) depacketizer and experimental packetizer
13 - OpenH264 encoder wrapper
14 - Support DNx100 (960x720@8)
15 - Direct3D11-accelerated decoding
16 - DXVA2-accelerated HEVC decoding
17 - AAC ELD 480 decoding
18 - Intel QSV-accelerated H.264 decoding
19 - DSS SP decoder and DSS demuxer
20 - RTP depacketizer for AC3 payload format (RFC 4184)
21 - RTP depacketizer for loss tolerant payload format for MP3 audio (RFC 5219)
22 - RTP depacketizer for DV (RFC 6469)
24 - RTP depacketization of T.140 text (RFC 4103)
25 - VP9 RTP payload format (draft 0) experimental depacketizer
27 - DTS lossless extension (XLL) decoding (not lossless, disabled by default)
28 - Intel QSV-accelerated H.264 encoding
29 - MMAL-accelerated H.264 decoding
30 - DTS decoding through libdcadec
31 - Canopus HQ/HQA decoder
32 - Automatically rotate videos based on metadata in avconv
33 - improved Quickdraw compatibility
34 - NVIDIA NVENC-accelerated H.264 and HEVC encoding support
35 - Multipart JPEG demuxer
36 - Support the extended vp9 profiles in the libvpx wrapper
37 - Hap decoder and encoder
38 - DirectDraw Surface image/texture decoder
39 - rewritten ASF demuxer
40 - Go2Meeting decoding support
41 - Intel QSV-accelerated MPEG-2 video and HEVC encoding
42 - bitstream filter for converting HEVC from MP4 to Annex B
43 - Intel QSV-accelerated MPEG-2 video and HEVC decoding
48 - shuffleplanes filter
49 - replaygain data export
50 - Alias PIX image encoder and decoder
51 - BRender PIX image decoder
52 - Amazing Studio PAF playback support
54 - BMP standalone parser
55 - OpenEXR image decoder
56 - support encoding and decoding 4-channel SGI images
57 - support decoding 16-bit RLE SGI images
59 - LucasArts SMUSH SANM video decoder
60 - LucasArts SMUSH VIMA audio decoder (ADPCM)
61 - LucasArts SMUSH demuxer
62 - MP2 encoding via TwoLAME
64 - Silicon Graphics RLE 8-bit video decoder
65 - Silicon Graphics Motion Video Compressor 1 & 2 decoder
66 - Silicon Graphics Movie demuxer
67 - On2 AVC (Audio for Video) decoder
68 - support for decoding through DXVA2 in avconv
69 - libbs2b-based stereo-to-binaural audio filter
71 - display matrix export and rotation API
72 - drop avserver, it was unmaintained for years and largely broken
74 - request Icecast metadata by default
75 - support for using metadata in stream specifiers in avtools
81 - support ID3v2 tags in ASF files
82 - reference-counting for AVFrame and AVPacket data
83 - avconv now fails when input options are used for output file
85 - avconv options -filter_script and -filter_complex_script, which allow a
86 filtergraph description to be read from a file
87 - uniform options syntax across all filters
90 - asetpts filter (same as setpts, but for audio)
91 - trim and atrim filters
92 - avconv -t and -ss (output-only) options are now sample-accurate when
94 - Matroska muxer can now put the index at the beginning of the file.
95 - avconv -deinterlace option removed, the yadif filter should be used instead
96 - Apple Intermediate Codec decoder
97 - Escape 130 video decoder
98 - support for slice multithreading in libavfilter
99 - VC-1 interlaced B-frame support
100 - support for WavPack muxing (raw and in Matroska)
102 - WavPack encoding through libwavpack
103 - Added the -n parameter to avconv
105 - when transcoding with avconv (i.e. not streamcopying), -ss is now accurate
106 even when used as an input option. Previous behavior can be restored with
107 the -noaccurate_seek option.
108 - avconv -t option can now be used for inputs, to limit the duration of
109 data read from an input file
110 - Voxware MetaSound decoder
112 - Error Resilient AAC syntax (ER AAC LC) decoding
113 - Low Delay AAC (ER AAC LD) decoding
114 - mux chapters in ASF files
115 - Opus in Ogg demuxing
116 - Enhanced Low Delay AAC (ER AAC ELD) decoding (no LD SBR support)
118 - HNM version 4 demuxer and video decoder
120 - raw HEVC, HEVC in MOV/MP4, HEVC in Matroska, HEVC in MPEG-TS demuxing
121 - remove avplay -vismv option, which has not worked for a long time
123 - setsar/setdar filters now support variables in ratio expressions
124 - dar variable in the scale filter now returns the actual DAR (i.e. a * sar)
126 - support for decoding through VDPAU in avconv (the -hwaccel option)
127 - remove mp3_header_(de)compress bitstream filters
128 - stereoscopic 3d metadata handling
129 - png standalone parser
130 - WebP encoding via libwebp
133 - Mirillis FIC video decoder
135 - compand audio filter
139 - av_basename and av_dirname
140 - adobe and limelight publisher authentication in RTMP
141 - VDPAU hardware acceleration through normal hwaccel
146 - ashowinfo audio filter
147 - 24-bit FLAC encoding
148 - audio volume filter
149 - deprecated the avconv -vol option. the volume filter is to be used instead.
150 - multi-channel ALAC encoding up to 7.1
151 - TAK demuxer, parser, and decoder
152 - adaptive frame-level multithreading for H.264
156 - metadata (INFO tag) support in WAV muxer
157 - support for building DLLs using MSVC
158 - remove avserver daemon mode
159 - support building on the Plan 9 operating system
160 - ffv1: support version 1.3
165 - XWD encoder and decoder
166 - Support for fragmentation in the mov/mp4 muxer
167 - ISMV (Smooth Streaming) muxer
168 - CDXL demuxer and decoder
169 - Apple ProRes encoder
170 - Sun Rasterfile Encoder
172 - ID3v2 attached pictures reading and writing
173 - WMA Lossless decoder
175 - RealAudio Lossless decoder
177 - drop support for avconv without libavfilter
178 - add libavresample audio conversion library
179 - audio filters support in libavfilter and avconv
183 - avprobe output is now standard INI or JSON. The old format can still
184 be used with -of old.
185 - Indeo Audio decoder
186 - channelsplit audio filter
187 - RTMPT protocol support
188 - iLBC encoding/decoding via libilbc
189 - Microsoft Screen 1 decoder
191 - audio channel mapping filter
192 - Microsoft ATC Screen decoder
194 - TechSmith Screen Codec 2 decoder
195 - AAC encoding via libfdk-aac
196 - Microsoft Expression Encoder Screen decoder
197 - RTMPS protocol support
198 - RTMPTS protocol support
199 - JPEG 2000 encoding support through OpenJPEG
200 - G.723.1 demuxer and decoder
201 - RTMPE protocol support
202 - RTMPTE protocol support
203 - Canopus Lossless Codec decoder
204 - avconv -shortest option is now per-output file,
205 -pass and -passlogfile are now per-output stream
207 - Microsoft Screen 2 decoder
208 - RTP depacketization of JPEG
209 - Smooth Streaming live segmenter muxer
210 - RTP packetization of JPEG
211 - Opus decoder and encoder using libopus
212 - remove -same_quant, it hasn't worked for years
213 - support for building with MSVC
224 - Automatic thread count based on detection number of (available) CPU cores
225 - Deprecate libpostproc. If desired, the switch --enable-postproc will
226 enable it but it may be removed in a later Libav release.
227 - rv34: frame-level multi-threading
228 - optimized iMDCT transform on x86 using SSE for for mpegaudiodec
234 - Flash Screen Video 2 decoder
235 - ffplay/ffprobe/ffserver renamed to avplay/avprobe/avserver
236 - ffmpeg deprecated, added avconv, which is almost the same for now, except
237 for a few incompatible changes in the options, which will hopefully make them
238 easier to use. The changes are:
239 * The options placement is now strictly enforced! While in theory the
240 options for ffmpeg should be given in [input options] -i INPUT [output
241 options] OUTPUT order, in practice it was possible to give output options
242 before the -i and it mostly worked. Except when it didn't - the behavior was
243 a bit inconsistent. In avconv, it is not possible to mix input and output
244 options. All non-global options are reset after an input or output filename.
245 * All per-file options are now truly per-file - they apply only to the next
246 input or output file and specifying different values for different files
247 will now work properly (notably -ss and -t options).
248 * All per-stream options are now truly per-stream - it is possible to
249 specify which stream(s) should a given option apply to. See the Stream
250 specifiers section in the avconv manual for details.
251 * In ffmpeg some options (like -newvideo/-newaudio/...) are irregular in the
252 sense that they're specified after the output filename instead of before,
253 like all other options. In avconv this irregularity is removed, all options
254 apply to the next input or output file.
255 * -newvideo/-newaudio/-newsubtitle options were removed. Not only were they
256 irregular and highly confusing, they were also redundant. In avconv the -map
257 option will create new streams in the output file and map input streams to
258 them. E.g. avconv -i INPUT -map 0 OUTPUT will create an output stream for
259 each stream in the first input file.
260 * The -map option now has slightly different and more powerful syntax:
261 + Colons (':') are used to separate file index/stream type/stream index
262 instead of dots. Comma (',') is used to separate the sync stream instead
263 of colon.. This is done for consistency with other options.
264 + It's possible to specify stream type. E.g. -map 0:a:2 creates an
265 output stream from the third input audio stream.
266 + Omitting the stream index now maps all the streams of the given type,
267 not just the first. E.g. -map 0:s creates output streams for all the
268 subtitle streams in the first input file.
269 + Since -map can now match multiple streams, negative mappings were
270 introduced. Negative mappings disable some streams from an already
271 defined map. E.g. '-map 0 -map -0:a:1' means 'create output streams for
272 all the stream in the first input file, except for the second audio
274 * There is a new option -c (or -codec) for choosing the decoder/encoder to
275 use, which allows to precisely specify target stream(s) consistently with
276 other options. E.g. -c:v lib264 sets the codec for all video streams, -c:a:0
277 libvorbis sets the codec for the first audio stream and -c copy copies all
278 the streams without reencoding. Old -vcodec/-acodec/-scodec options are now
280 * It is now possible to precisely specify which stream should an AVOption
281 apply to. E.g. -b:v:0 2M sets the bitrate for the first video stream, while
282 -b:a 128k sets the bitrate for all audio streams. Note that the old -ab 128k
283 syntax is deprecated and will stop working soon.
284 * -map_chapters now takes only an input file index and applies to the next
285 output file. This is consistent with how all the other options work.
286 * -map_metadata now takes only an input metadata specifier and applies to
287 the next output file. Output metadata specifier is now part of the option
288 name, similarly to the AVOptions/map/codec feature above.
289 * -metadata can now be used to set metadata on streams and chapters, e.g.
290 -metadata:s:1 language=eng sets the language of the first stream to 'eng'.
291 This made -vlang/-alang/-slang options redundant, so they were removed.
292 * -qscale option now uses stream specifiers and applies to all streams, not
293 just video. I.e. plain -qscale number would now apply to all streams. To get
294 the old behavior, use -qscale:v. Also there is now a shortcut -q for -qscale
295 and -aq is now an alias for -q:a.
296 * -vbsf/-absf/-sbsf options were removed and replaced by a -bsf option which
297 uses stream specifiers. Use -bsf:v/a/s instead of the old options.
298 * -itsscale option now uses stream specifiers, so its argument is only the
300 * -intra option was removed, use -g 0 for the same effect.
301 * -psnr option was removed, use -flags +psnr for the same effect.
302 * -vf option is now an alias to the new -filter option, which uses stream specifiers.
303 * -vframes/-aframes/-dframes options are now aliases to the new -frames option.
304 * -vtag/-atag/-stag options are now aliases to the new -tag option.
306 - Windows Media Image decoder
310 - libcdio-paranoia input device for audio CD grabbing
312 - Apple ProRes decoder
313 - CELT in Ogg demuxing
314 - VC-1 interlaced decoding
315 - lut, lutrgb, and lutyuv filters
318 - Speex encoding via libspeex
319 - 4:2:2 H.264 decoding support
320 - 4:2:2 and 4:4:4 H.264 encoding with libx264
321 - Pulseaudio input device
322 - replacement Indeo 3 decoder
323 - TLS/SSL and HTTPS protocol support
324 - AVOptions API rewritten and documented
325 - most of CODEC_FLAG2_*, some CODEC_FLAG_* and many codec-specific fields in
326 AVCodecContext deprecated. Codec private options should be used instead.
327 - Properly working defaults in libx264 wrapper, support for native presets.
328 - Encrypted OMA files support
329 - Discworld II BMV decoding support
331 - OS X Video Decoder Acceleration (VDA) support
332 - CRI ADX audio format muxer and demuxer
333 - Playstation Portable PMP format demuxer
334 - PCM format support in OMA demuxer
336 - Dxtory capture format decoder
337 - v410 QuickTime uncompressed 4:4:4 10-bit encoder and decoder
339 - Simple segmenting muxer
346 - E-AC-3 audio encoder
347 - ac3enc: add channel coupling support
348 - floating-point sample format support for (E-)AC-3, DCA, AAC, Vorbis decoders
349 - H.264/MPEG frame-level multithreading
350 - av_metadata_* functions renamed to av_dict_* and moved to libavutil
351 - 4:4:4 H.264 decoding support
352 - 10-bit H.264 optimizations for x86
353 - bump libswscale for recently reported ABI break
358 - VP8 frame-level multithreading
359 - NEON optimizations for VP8
360 - removed a lot of deprecated API cruft
361 - FFT and IMDCT optimizations for AVX (Sandy Bridge) processors
363 - SMPTE 302M AES3 audio decoder
364 - ffmpeg no longer quits after the 'q' key is pressed; use 'ctrl+c' instead
365 - 9bit and 10bit per sample support in the H.264 decoder
370 - WebM support in Matroska de/muxer
371 - low overhead Ogg muxing
373 - VP8 de/encoding via libvpx
374 - Demuxer for On2's IVF format
375 - Pictor/PC Paint decoder
377 - libfaad2 wrapper removed
378 - DTS-ES extension (XCh) decoding support
380 - RTSP tunneling over HTTP
381 - RTP depacketization of SVQ3
382 - -strict inofficial replaced by -strict unofficial
383 - ffplay -exitonkeydown and -exitonmousedown options added
384 - native GSM / GSM MS decoder
385 - RTP depacketization of QDM2
386 - ANSI/ASCII art playback system
387 - Lego Mindstorms RSO de/muxer
388 - SubRip subtitle file muxer and demuxer
389 - Chinese AVS encoding via libxavs
390 - ffprobe -show_packets option added
391 - RTP packetization of Theora and Vorbis
392 - RTP depacketization of MP4A-LATM
393 - RTP packetization and depacketization of VP8
395 - Apple HTTP Live Streaming demuxer
398 - G.722 ADPCM audio encoder/decoder
401 - frei0r wrapper filter
402 - change crop filter syntax to width:height:x:y
403 - make the crop filter accept parametric expressions
404 - make ffprobe accept AVFormatContext options
407 - Demuxer for Leitch/Harris' VR native stream format (LXF)
408 - RTP depacketization of the X-QT QuickTime format
409 - SAP (Session Announcement Protocol, RFC 2974) muxer and demuxer
411 - ffmpeg -crop* options removed
412 - transpose filter added
413 - ffmpeg -force_key_frames option added
414 - demuxer for receiving raw rtp:// URLs without an SDP description
415 - single stream LATM/LOAS decoder
416 - setpts filter added
417 - Win64 support for optimized x86 assembly functions
418 - MJPEG/AVI1 to JPEG/JFIF bitstream filter
419 - ASS subtitle encoder and decoder
420 - IEC 61937 encapsulation for E-AC-3, TrueHD, DTS-HD (for HDMI passthrough)
421 - overlay filter added
422 - rename aspect filter to setdar, and pixelaspect to setsar
424 - Mobotix .mxg demuxer
425 - frei0r source added
426 - hqdn3d filter added
427 - RTP depacketization of QCELP
429 - gradfun filter added
431 - replace the ocv_smooth filter with a more generic ocv filter
432 - Windows Televison (WTV) demuxer
433 - FFmpeg metadata format muxer and demuxer
434 - SubRip (srt) subtitle decoder
435 - floating-point AC-3 encoder added
437 - ffmpeg -copytb option added
439 - Wing Commander IV movies decoder added
441 - Bink version 'b' audio and video decoder
442 - Bitmap Brothers JV playback system
443 - Apple HTTP Live Streaming protocol handler
444 - sndio support for playback and record
445 - Linux framebuffer input device added
446 - Chronomaster DFA decoder
447 - Mobotix MxPEG decoder
448 - AAC encoding via libvo-aacenc
449 - AMR-WB encoding via libvo-amrwbenc
451 - fieldorder video filter added
456 - PB-frame decoding for H.263
457 - deprecated vhook subsystem removed
458 - deprecated old scaler removed
460 - Alpha channel scaler
462 - RTP packetization of H.263
463 - RTP packetization of AMR
464 - RTP depacketization of Vorbis
465 - CorePNG decoding support
466 - Cook multichannel decoding support
467 - introduced avlanguage helpers in libavformat
468 - 8088flex TMV demuxer and decoder
469 - per-stream language-tags extraction in asfdec
470 - V210 decoder and encoder
471 - remaining GPL parts in AC-3 decoder converted to LGPL
473 - SoX native format muxer and demuxer
474 - AMR-NB decoding/encoding, AMR-WB decoding via OpenCORE libraries
476 - Electronic Arts Madcow decoder
477 - DivX (XSUB) subtitle encoder
478 - nonfree libamr support for AMR-NB/WB decoding/encoding removed
479 - experimental AAC encoder
480 - RTP depacketization of ASF and RTSP from WMS servers
481 - RTMP support in libavformat
482 - noX handling for OPT_BOOL X options
484 - IEC-61937 compatible Muxer
486 - Bluray (PGS) subtitle decoder
487 - LPCM support in MPEG-TS (HDMV RID as found on Blu-ray disks)
489 - Core Audio Format demuxer
491 - MD STUDIO audio demuxer
492 - RF64 support in WAV demuxer
493 - MPEG-4 Audio Lossless Coding (ALS) decoder
494 - -formats option split into -formats, -codecs, -bsfs, and -protocols
496 - CDG demuxer and decoder
498 - Auravision Aura 1 and 2 decoders
499 - Deluxe Paint Animation playback system
501 - Adobe Filmstrip muxer and demuxer
502 - RTP depacketization of H.263
503 - Bink demuxer and audio/video decoders
504 - enable symbol versioning by default for linkers that support it
505 - IFF PBM/ILBM bitmap decoder
508 - RTP depacketization of AMR
514 - Kega Game Video (KGV1) decoder
515 - VorbisComment writing for FLAC, Ogg FLAC and Ogg Speex files
516 - RTP depacketization of Theora
517 - HTTP Digest authentication
518 - RTMP/RTMPT/RTMPS/RTMPE/RTMPTE protocol support via librtmp
519 - Psygnosis YOP demuxer and video decoder
520 - spectral extension support in the E-AC-3 decoder
521 - unsharp video filter
522 - RTP hinting in the mov/3gp/mp4 muxer
523 - Dirac in Ogg demuxing
524 - seek to keyframes in Ogg
525 - 4:2:2 and 4:4:4 Theora decoding
526 - 35% faster VP3/Theora decoding
527 - faster AAC decoding
528 - faster H.264 decoding
529 - RealAudio 1.0 (14.4K) encoder
534 - DV50 AKA DVCPRO50 encoder, decoder, muxer and demuxer
535 - TechSmith Camtasia (TSCC) video decoder
536 - IBM Ultimotion (ULTI) video decoder
537 - Sierra Online audio file demuxer and decoder
538 - Apple QuickDraw (qdrw) video decoder
539 - Creative ADPCM audio decoder (16 bits as well as 8 bits schemes)
540 - Electronic Arts Multimedia (WVE/UV2/etc.) file demuxer
541 - Miro VideoXL (VIXL) video decoder
542 - H.261 video encoder
544 - Nullsoft Video (NSV) file demuxer
545 - Shorten audio decoder
547 - Apple Lossless Audio Codec (ALAC) decoder
548 - Winnov WNV1 video decoder
549 - Autodesk Animator Studio Codec (AASC) decoder
550 - Indeo 2 video decoder
551 - Fraps FPS1 video decoder
552 - Snow video encoder/decoder
553 - Sonic audio encoder/decoder
554 - Vorbis audio decoder
555 - Macromedia ADPCM decoder
556 - Duck TrueMotion 2 video decoder
557 - support for decoding FLX and DTA extensions in FLIC files
558 - H.264 custom quantization matrices support
559 - ffserver fixed, it should now be usable again
561 - Real Cooker audio decoder
562 - TrueSpeech audio decoder
563 - WMA2 audio decoder fixed, now all files should play correctly
564 - RealAudio 14.4 and 28.8 decoders fixed
566 - build system improvements
567 - tabs and trailing whitespace removed from the codebase
568 - CamStudio video decoder
569 - AIFF/AIFF-C audio format, encoding and decoding
570 - ADTS AAC file reading and writing
571 - Creative VOC file reading and writing
572 - American Laser Games multimedia (*.mm) playback system
573 - Zip Motion Blocks Video decoder
574 - improved Theora/VP3 decoder
575 - True Audio (TTA) decoder
576 - AVS demuxer and video decoder
578 - Smacker demuxer and decoder
579 - NuppelVideo/MythTV demuxer and RTjpeg decoder
581 - MPEG-2 intra VLC support
582 - MPEG-2 4:2:2 encoder
583 - Flash Screen Video decoder
585 - Chinese AVS decoder
588 - VC-1/WMV3/WMV9 video decoder
591 - VMware video decoder
594 - WavPack lossless audio decoder
595 - Targa (.TGA) picture decoder
596 - Vorbis audio encoder
597 - Delphine Software .cin demuxer/audio and video decoder
598 - Tiertex .seq demuxer/video decoder
600 - TIFF picture encoder and decoder
601 - GIF picture decoder
602 - Intel Music Coder decoder
603 - Zip Motion Blocks Video encoder
605 - Flash Screen Video encoder
606 - Theora encoding via libtheora
609 - GSM-MS encoder and decoder
611 - DXA demuxer and decoder
613 - Gamecube movie (.THP) playback system
614 - Blackfin optimizations
615 - Interplay C93 demuxer and video decoder
616 - Bethsoft VID demuxer and video decoder
619 - V.Flash PTX decoder
620 - RoQ muxer, RoQ audio encoder
621 - Renderware TXD demuxer and decoder
622 - extern C declarations for C++ removed from headers
623 - sws_flags command line option
627 - OS/2 support removed and restored again
630 - additional SPARC (VIS) optimizations
632 - slice-based parallel H.264 decoding
633 - Monkey's Audio demuxer and decoder
634 - AMV audio and video decoder
636 - H.264 PAFF decoding
637 - Nellymoser ASAO decoder
638 - Beam Software SIFF demuxer and decoder
639 - libvorbis Vorbis decoding removed in favor of native decoder
640 - IntraX8 (J-Frame) subdecoder for WMV2 and VC-1
641 - Ogg (Theora, Vorbis and FLAC) muxer
642 - The "device" muxers and demuxers are now in a new libavdevice library
643 - PC Paintbrush PCX decoder
644 - Sun Rasterfile decoder
645 - TechnoTrend PVA demuxer
646 - Linux Media Labs MPEG-4 (LMLM4) demuxer
647 - AVM2 (Flash 9) SWF muxer
648 - QT variant of IMA ADPCM encoder
650 - iPod/iPhone compatible mp4 muxer
652 - MSN TCP Webcam stream demuxer
653 - RL2 demuxer / decoder
656 - non-recursive Makefiles
658 - MAXIS EA XA (.xa) demuxer / decoder
662 - Electronic Arts CMV decoder
663 - Motion Pixels Video decoder
664 - Motion Pixels MVI demuxer
665 - removed animated GIF decoder/demuxer
666 - D-Cinema audio muxer
667 - Electronic Arts TGV decoder
668 - Apple Lossless Audio Codec (ALAC) encoder
670 - floating point PCM encoder/decoder
672 - DV100 AKA DVCPRO HD decoder and demuxer
673 - E-AC-3 support added to AC-3 decoder
674 - Nellymoser ASAO encoder
675 - ASS and SSA demuxer and muxer
676 - liba52 wrapper removed
677 - SVQ3 watermark decoding support
678 - Speex decoding via libspeex
679 - Electronic Arts TGQ decoder
681 - QCELP / PureVoice decoder
683 - hybrid WavPack support
684 - R3D REDCODE demuxer
685 - ALSA support for playback and record
686 - Electronic Arts TQI decoder
687 - OpenJPEG based JPEG 2000 decoder
688 - NC (NC4600) camera file demuxer
689 - Gopher client support
691 - generic metadata API
696 - DV encoder, DV muxer
697 - Microsoft RLE video decoder
698 - Microsoft Video-1 decoder
699 - Apple Animation (RLE) decoder
700 - Apple Graphics (SMC) decoder
701 - Apple Video (RPZA) decoder
703 - Sega FILM (CPK) file demuxer
704 - Westwood multimedia support (VQA & AUD files)
705 - Id Quake II CIN playback support
707 - FLIC playback support
708 - RealVideo 2.0 (RV20) decoder
709 - Duck TrueMotion v1 (DUCK) video decoder
710 - Sierra VMD demuxer and video decoder
711 - MSZH and ZLIB decoder support
715 - rate distortion optimal cbp support
716 - rate distorted optimal ac prediction for MPEG-4
717 - rate distorted optimal lambda->qp support
718 - AAC encoding with libfaac
719 - Sunplus JPEG codec (SP5X) support
720 - use Lagrange multipler instead of QP for ratecontrol
721 - Theora/VP3 decoding support
722 - XA and ADX ADPCM codecs
723 - export MPEG-2 active display area / pan scan
724 - Add support for configuring with IBM XLC
725 - floating point AAN DCT
726 - initial support for zygo video (not complete)
728 - new audio/video parser API
730 - av_read_frame() and av_seek_frame() support
731 - missing last frame fixes
732 - seek by mouse in ffplay
733 - noise reduction of DCT coefficients
734 - H.263 OBMC & 4MV support
735 - H.263 alternative inter vlc support
737 - H.263 slice structured mode
738 - interlaced DCT support for MPEG-2 encoding
739 - stuffing to stay above min_bitrate
740 - MB type & QP visualization
741 - frame stepping for ffplay
742 - interlaced motion estimation
743 - alternate scantable support
744 - SVCD scan offset support
747 - quantizer noise shaping
748 - G.726 ADPCM audio codec
750 - multithreaded/SMP motion estimation
751 - multithreaded/SMP encoding for MPEG-1/MPEG-2/MPEG-4/H.263
752 - multithreaded/SMP decoding for MPEG-2
754 - Metrowerks CodeWarrior suppport
755 - H.263+ custom pcf support
756 - nicer output for 'ffmpeg -formats'
758 - SGI image format, encoding and decoding
759 - H.264 loop filter support
760 - H.264 CABAC support
761 - nicer looking arrows for the motion vector visualization
762 - improved VCD support
763 - audio timestamp drift compensation
764 - MPEG-2 YUV 422/444 support
765 - polyphase kaiser windowed sinc and blackman nuttall windowed sinc audio resample
766 - better image scaling
768 - correctly interleave packets during encoding
769 - VIS optimized motion compensation
770 - intra_dc_precision>0 encoding support
771 - support reuse of motion vectors/MB types/field select values of the source video
772 - more accurate deblock filter
774 - many optimizations and bugfixes
775 - FunCom ISS audio file demuxer and according ADPCM decoding
780 - MPEG-2 video encoding (Michael)
781 - Id RoQ playback subsystem (Mike Melanson and Tim Ferguson)
782 - Wing Commander III Movie (.mve) file playback subsystem (Mike Melanson
784 - Xan DPCM audio decoder (Mario Brito)
785 - Interplay MVE playback subsystem (Mike Melanson)
786 - Duck DK3 and DK4 ADPCM audio decoders (Mike Melanson)
791 - RealAudio 1.0 (14_4) and 2.0 (28_8) native decoders. Author unknown, code from mplayerhq
792 (originally from public domain player for Amiga at http://www.honeypot.net/audio)
793 - current version now also compiles with older GCC (Fabrice)
794 - 4X multimedia playback system including 4xm file demuxer (Mike
795 Melanson), and 4X video and audio codecs (Michael)
796 - Creative YUV (CYUV) decoder (Mike Melanson)
797 - FFV1 codec (our very simple lossless intra only codec, compresses much better
798 than HuffYUV) (Michael)
799 - ASV1 (Asus), H.264, Intel indeo3 codecs have been added (various)
800 - tiny PNG encoder and decoder, tiny GIF decoder, PAM decoder (PPM with
801 alpha support), JPEG YUV colorspace support. (Fabrice Bellard)
802 - ffplay has been replaced with a newer version which uses SDL (optionally)
803 for multiplatform support (Fabrice)
804 - Sorenson Version 3 codec (SVQ3) support has been added (decoding only) - donated
806 - AMR format has been added (Johannes Carlsson)
807 - 3GP support has been added (Johannes Carlsson)
808 - VP3 codec has been added (Mike Melanson)
809 - more MPEG-1/2 fixes
810 - better multiplatform support, MS Visual Studio fixes (various)
811 - AltiVec optimizations (Magnus Damn and others)
812 - SH4 processor support has been added (BERO)
813 - new public interfaces (avcodec_get_pix_fmt) (Roman Shaposhnick)
814 - VOB streaming support (Brian Foley)
815 - better MP3 autodetection (Andriy Rysin)
816 - qpel encoding (Michael)
817 - 4mv+b frames encoding finally fixed (Michael)
818 - chroma ME (Michael)
819 - 5 comparison functions for ME (Michael)
820 - B-frame encoding speedup (Michael)
821 - WMV2 codec (unfinished - Michael)
822 - user specified diamond size for EPZS (Michael)
823 - Playstation STR playback subsystem, still experimental (Mike and Michael)
824 - ASV2 codec (Michael)
825 - CLJR decoder (Alex)
827 .. And lots more new enhancements and fixes.
832 - completely new integer only MPEG audio layer 1/2/3 decoder rewritten
834 - Recoded DCT and motion vector search with gcc (no longer depends on nasm)
835 - fix quantization bug in AC3 encoder
836 - added PCM codecs and format. Corrected WAV/AVI/ASF PCM issues
837 - added prototype ffplay program
838 - added GOB header parsing on H.263/H.263+ decoder (Juanjo)
839 - bug fix on MCBPC tables of H.263 (Juanjo)
840 - bug fix on DC coefficients of H.263 (Juanjo)
841 - added Advanced Prediction Mode on H.263/H.263+ decoder (Juanjo)
842 - now we can decode H.263 streams found in QuickTime files (Juanjo)
843 - now we can decode H.263 streams found in VIVO v1 files(Juanjo)
844 - preliminary RTP "friendly" mode for H.263/H.263+ coding. (Juanjo)
845 - added GOB header for H.263/H.263+ coding on RTP mode (Juanjo)
846 - now H.263 picture size is returned on the first decoded frame (Juanjo)
847 - added first regression tests
848 - added MPEG-2 TS demuxer
849 - new demux API for libav
850 - more accurate and faster IDCT (Michael)
851 - faster and entropy-controlled motion search (Michael)
852 - two pass video encoding (Michael)
853 - new video rate control (Michael)
854 - added MSMPEG4V1, MSMPEGV2 and WMV1 support (Michael)
855 - great performance improvement of video encoders and decoders (Michael)
856 - new and faster bit readers and vlc parsers (Michael)
857 - high quality encoding mode: tries all macroblock/VLC types (Michael)
858 - added DV video decoder
859 - preliminary RTP/RTSP support in ffserver and libavformat
860 - H.263+ AIC decoding/encoding support (Juanjo)
861 - VCD MPEG-PS mode (Juanjo)
862 - PSNR stuff (Juanjo)
863 - simple stats output (Juanjo)
864 - 16-bit and 15-bit RGB/BGR/GBR support (Bisqwit)
869 - some header fixes (Zdenek Kabelac <kabi at informatics.muni.cz>)
870 - many MMX optimizations (Nick Kurshev <nickols_k at mail.ru>)
871 - added configure system (actually a small shell script)
872 - added MPEG audio layer 1/2/3 decoding using LGPL'ed mpglib by
873 Michael Hipp (temporary solution - waiting for integer only
875 - fixed VIDIOCSYNC interrupt
876 - added Intel H.263 decoding support ('I263' AVI fourCC)
877 - added Real Video 1.0 decoding (needs further testing)
878 - simplified image formats again. Added PGM format (=grey
879 pgm). Renamed old PGM to PGMYUV.
880 - fixed msmpeg4 slice issues (tell me if you still find problems)
881 - fixed OpenDivX bugs with newer versions (added VOL header decoding)
882 - added support for MPlayer interface
883 - added macroblock skip optimization
884 - added MJPEG decoder
885 - added mmx/mmxext IDCT from libmpeg2
886 - added pgmyuvpipe, ppm, and ppm_pipe formats (original patch by Celer
887 <celer at shell.scrypt.net>)
888 - added pixel format conversion layer (e.g. for MJPEG or PPM)
889 - added deinterlacing option
891 - MPEG-4 vol header fixes (Jonathan Marsden <snmjbm at pacbell.net>)
892 - ARM optimizations (Lionel Ulmer <lionel.ulmer at free.fr>).
893 - Windows porting of file converter
894 - added MJPEG raw format (input/ouput)
895 - added JPEG image format support (input/output)
900 - fixed some std header definitions (Bjorn Lindgren
901 <bjorn.e.lindgren at telia.com>).
902 - added MPEG demuxer (MPEG-1 and 2 compatible).
904 - added prototype RM demuxer
905 - added AC3 decoding (done with libac3 by Aaron Holtzman)
906 - added decoding codec parameter guessing (.e.g. for MPEG, because the
907 header does not include them)
908 - fixed header generation in MPEG-1, AVI and ASF muxer: wmplayer can now
909 play them (only tested video)
910 - fixed H.263 white bug
911 - fixed phase rounding in img resample filter
912 - add MMX code for polyphase img resample filter
913 - added CPU autodetection
914 - added generic title/author/copyright/comment string handling (ASF and RM
916 - added SWF demux to extract MP3 track (not usable yet because no MP3
918 - added fractional frame rate support
919 - codecs are no longer searched by read_header() (should fix ffserver
925 - BGR24 patch (initial patch by Jeroen Vreeken <pe1rxq at amsat.org>)
926 - fixed raw yuv output
927 - added motion rounding support in MPEG-4
928 - fixed motion bug rounding in MSMPEG4
929 - added B-frame handling in video core
930 - added full MPEG-1 decoding support
931 - added partial (frame only) MPEG-2 support
932 - changed the FOURCC code for H.263 to "U263" to be able to see the
933 +AVI/H.263 file with the UB Video H.263+ decoder. MPlayer works with
934 this +codec ;) (JuanJo).
935 - Halfpel motion estimation after MB type selection (JuanJo)
936 - added pgm and .Y.U.V output format
937 - suppressed 'img:' protocol. Simply use: /tmp/test%d.[pgm|Y] as input or
939 - added pgmpipe I/O format (original patch from Martin Aumueller
940 <lists at reserv.at>, but changed completely since we use a format
941 instead of a protocol)
946 - added H.263/MPEG-4/MSMPEG4 decoding support. MPEG-4 decoding support
947 (for OpenDivX) is almost complete: 8x8 MVs and rounding are
948 missing. MSMPEG4 support is complete.
949 - added prototype MPEG-1 decoder. Only I- and P-frames handled yet (it
950 can decode ffmpeg MPEGs :-)).
951 - added libavcodec API documentation (see apiexample.c).
952 - fixed image polyphase bug (the bottom of some images could be
954 - added support for non clipped motion vectors (decoding only)
955 and image sizes non-multiple of 16
956 - added support for AC prediction (decoding only)
957 - added file overwrite confirmation (can be disabled with -y)
958 - added custom size picture to H.263 using H.263+ (Juanjo)
963 - added MSMPEG4 (aka DivX) compatible encoder. Changed default codec
964 of AVI and ASF to DIV3.
965 - added -me option to set motion estimation method
966 (default=log). suppressed redundant -hq option.
967 - added options -acodec and -vcodec to force a given codec (useful for
970 - improved dct_quantize speed
971 - factorized some motion estimation code
976 - removing grab code from ffserver and moved it to ffmpeg. Added
977 multistream support to ffmpeg.
978 - added timeshifting support for live feeds (option ?date=xxx in the
980 - added high quality image resize code with polyphase filter (need
981 mmx/see optimization). Enable multiple image size support in ffserver.
982 - added multi live feed support in ffserver
983 - suppressed master feature from ffserver (it should be done with an
984 external program which opens the .ffm url and writes it to another
986 - added preliminary support for video stream parsing (WAV and AVI half
987 done). Added proper support for audio/video file conversion in
989 - added preliminary support for video file sending from ffserver
990 - redesigning I/O subsystem: now using URL based input and output
992 - added WAV format support
993 - added "tty user interface" to ffmpeg to stop grabbing gracefully
994 - added MMX/SSE optimizations to SAD (Sums of Absolutes Differences)
995 (Juan J. Sierralta P. a.k.a. "Juanjo" <juanjo at atmlab.utfsm.cl>)
996 - added MMX DCT from mpeg2_movie 1.5 (Juanjo)
997 - added new motion estimation algorithms, log and phods (Juanjo)
998 - changed directories: libav for format handling, libavcodec for
1004 - added stereo in MPEG audio encoder
1009 - added 'high quality' mode which use motion vectors. It can be used in
1010 real time at low resolution.
1011 - fixed rounding problems which caused quality problems at high
1012 bitrates and large GOP size
1015 version 0.3.2: small fixes
1021 version 0.3.1: added avi/divx support
1024 - added MPEG-4 codec compatible with OpenDivX. It is based on the H.263 codec
1025 - added sound for flash format (not tested)
1028 version 0.3: initial public release