1 Entries are sorted chronologically from oldest to youngest within each release,
2 releases are sorted from youngest to oldest.
5 - aliases and defaults for Ogg subtypes (opus, spx)
6 - HEVC/H.265 RTP payload format (draft v6) packetizer and depacketizer
7 - avplay now exits by default at the end of playback
8 - XCB-based screen-grabber
9 - creating DASH compatible fragmented MP4, MPEG-DASH segmenting muxer
10 - H.261 RTP payload format (RFC 4587) depacketizer and experimental packetizer
13 - OpenH264 encoder wrapper
14 - Support DNx100 (960x720@8)
15 - Direct3D11-accelerated decoding
16 - DXVA2-accelerated HEVC decoding
17 - AAC ELD 480 decoding
18 - Intel QSV-accelerated H.264 decoding
19 - DSS SP decoder and DSS demuxer
20 - RTP depacketizer for AC3 payload format (RFC 4184)
21 - RTP depacketizer for loss tolerant payload format for MP3 audio (RFC 5219)
22 - RTP depacketizer for DV (RFC 6469)
24 - RTP depacketization of T.140 text (RFC 4103)
25 - VP9 RTP payload format (draft 0) experimental depacketizer
27 - DTS lossless extension (XLL) decoding (not lossless, disabled by default)
28 - Intel QSV-accelerated H.264 encoding
29 - MMAL-accelerated H.264 decoding
30 - DTS decoding through libdcadec
31 - Canopus HQ/HQA decoder
32 - Automatically rotate videos based on metadata in avconv
33 - improved Quickdraw compatibility
34 - NVIDIA NVENC-accelerated H.264 and HEVC encoding support
35 - Multipart JPEG demuxer
36 - Support the extended vp9 profiles in the libvpx wrapper
37 - Hap decoder and encoder
38 - DirectDraw Surface image/texture decoder
39 - rewritten ASF demuxer
40 - Go2Meeting decoding support
41 - Intel QSV-accelerated MPEG-2 video and HEVC encoding
42 - bitstream filter for converting HEVC from MP4 to Annex B
43 - Intel QSV-accelerated MPEG-2 video and HEVC decoding
44 - Support DNx100 (1440x1080@8)
50 - shuffleplanes filter
51 - replaygain data export
52 - Alias PIX image encoder and decoder
53 - BRender PIX image decoder
54 - Amazing Studio PAF playback support
56 - BMP standalone parser
57 - OpenEXR image decoder
58 - support encoding and decoding 4-channel SGI images
59 - support decoding 16-bit RLE SGI images
61 - LucasArts SMUSH SANM video decoder
62 - LucasArts SMUSH VIMA audio decoder (ADPCM)
63 - LucasArts SMUSH demuxer
64 - MP2 encoding via TwoLAME
66 - Silicon Graphics RLE 8-bit video decoder
67 - Silicon Graphics Motion Video Compressor 1 & 2 decoder
68 - Silicon Graphics Movie demuxer
69 - On2 AVC (Audio for Video) decoder
70 - support for decoding through DXVA2 in avconv
71 - libbs2b-based stereo-to-binaural audio filter
73 - display matrix export and rotation API
74 - drop avserver, it was unmaintained for years and largely broken
76 - request Icecast metadata by default
77 - support for using metadata in stream specifiers in avtools
83 - support ID3v2 tags in ASF files
84 - reference-counting for AVFrame and AVPacket data
85 - avconv now fails when input options are used for output file
87 - avconv options -filter_script and -filter_complex_script, which allow a
88 filtergraph description to be read from a file
89 - uniform options syntax across all filters
92 - asetpts filter (same as setpts, but for audio)
93 - trim and atrim filters
94 - avconv -t and -ss (output-only) options are now sample-accurate when
96 - Matroska muxer can now put the index at the beginning of the file.
97 - avconv -deinterlace option removed, the yadif filter should be used instead
98 - Apple Intermediate Codec decoder
99 - Escape 130 video decoder
100 - support for slice multithreading in libavfilter
101 - VC-1 interlaced B-frame support
102 - support for WavPack muxing (raw and in Matroska)
104 - WavPack encoding through libwavpack
105 - Added the -n parameter to avconv
107 - when transcoding with avconv (i.e. not streamcopying), -ss is now accurate
108 even when used as an input option. Previous behavior can be restored with
109 the -noaccurate_seek option.
110 - avconv -t option can now be used for inputs, to limit the duration of
111 data read from an input file
112 - Voxware MetaSound decoder
114 - Error Resilient AAC syntax (ER AAC LC) decoding
115 - Low Delay AAC (ER AAC LD) decoding
116 - mux chapters in ASF files
117 - Opus in Ogg demuxing
118 - Enhanced Low Delay AAC (ER AAC ELD) decoding (no LD SBR support)
120 - HNM version 4 demuxer and video decoder
122 - raw HEVC, HEVC in MOV/MP4, HEVC in Matroska, HEVC in MPEG-TS demuxing
123 - remove avplay -vismv option, which has not worked for a long time
125 - setsar/setdar filters now support variables in ratio expressions
126 - dar variable in the scale filter now returns the actual DAR (i.e. a * sar)
128 - support for decoding through VDPAU in avconv (the -hwaccel option)
129 - remove mp3_header_(de)compress bitstream filters
130 - stereoscopic 3d metadata handling
131 - png standalone parser
132 - WebP encoding via libwebp
135 - Mirillis FIC video decoder
137 - compand audio filter
141 - av_basename and av_dirname
142 - adobe and limelight publisher authentication in RTMP
143 - VDPAU hardware acceleration through normal hwaccel
148 - ashowinfo audio filter
149 - 24-bit FLAC encoding
150 - audio volume filter
151 - deprecated the avconv -vol option. the volume filter is to be used instead.
152 - multi-channel ALAC encoding up to 7.1
153 - TAK demuxer, parser, and decoder
154 - adaptive frame-level multithreading for H.264
158 - metadata (INFO tag) support in WAV muxer
159 - support for building DLLs using MSVC
160 - remove avserver daemon mode
161 - support building on the Plan 9 operating system
162 - ffv1: support version 1.3
167 - XWD encoder and decoder
168 - Support for fragmentation in the mov/mp4 muxer
169 - ISMV (Smooth Streaming) muxer
170 - CDXL demuxer and decoder
171 - Apple ProRes encoder
172 - Sun Rasterfile Encoder
174 - ID3v2 attached pictures reading and writing
175 - WMA Lossless decoder
177 - RealAudio Lossless decoder
179 - drop support for avconv without libavfilter
180 - add libavresample audio conversion library
181 - audio filters support in libavfilter and avconv
185 - avprobe output is now standard INI or JSON. The old format can still
186 be used with -of old.
187 - Indeo Audio decoder
188 - channelsplit audio filter
189 - RTMPT protocol support
190 - iLBC encoding/decoding via libilbc
191 - Microsoft Screen 1 decoder
193 - audio channel mapping filter
194 - Microsoft ATC Screen decoder
196 - TechSmith Screen Codec 2 decoder
197 - AAC encoding via libfdk-aac
198 - Microsoft Expression Encoder Screen decoder
199 - RTMPS protocol support
200 - RTMPTS protocol support
201 - JPEG 2000 encoding support through OpenJPEG
202 - G.723.1 demuxer and decoder
203 - RTMPE protocol support
204 - RTMPTE protocol support
205 - Canopus Lossless Codec decoder
206 - avconv -shortest option is now per-output file,
207 -pass and -passlogfile are now per-output stream
209 - Microsoft Screen 2 decoder
210 - RTP depacketization of JPEG
211 - Smooth Streaming live segmenter muxer
212 - RTP packetization of JPEG
213 - Opus decoder and encoder using libopus
214 - remove -same_quant, it hasn't worked for years
215 - support for building with MSVC
226 - Automatic thread count based on detection number of (available) CPU cores
227 - Deprecate libpostproc. If desired, the switch --enable-postproc will
228 enable it but it may be removed in a later Libav release.
229 - rv34: frame-level multi-threading
230 - optimized iMDCT transform on x86 using SSE for for mpegaudiodec
236 - Flash Screen Video 2 decoder
237 - ffplay/ffprobe/ffserver renamed to avplay/avprobe/avserver
238 - ffmpeg deprecated, added avconv, which is almost the same for now, except
239 for a few incompatible changes in the options, which will hopefully make them
240 easier to use. The changes are:
241 * The options placement is now strictly enforced! While in theory the
242 options for ffmpeg should be given in [input options] -i INPUT [output
243 options] OUTPUT order, in practice it was possible to give output options
244 before the -i and it mostly worked. Except when it didn't - the behavior was
245 a bit inconsistent. In avconv, it is not possible to mix input and output
246 options. All non-global options are reset after an input or output filename.
247 * All per-file options are now truly per-file - they apply only to the next
248 input or output file and specifying different values for different files
249 will now work properly (notably -ss and -t options).
250 * All per-stream options are now truly per-stream - it is possible to
251 specify which stream(s) should a given option apply to. See the Stream
252 specifiers section in the avconv manual for details.
253 * In ffmpeg some options (like -newvideo/-newaudio/...) are irregular in the
254 sense that they're specified after the output filename instead of before,
255 like all other options. In avconv this irregularity is removed, all options
256 apply to the next input or output file.
257 * -newvideo/-newaudio/-newsubtitle options were removed. Not only were they
258 irregular and highly confusing, they were also redundant. In avconv the -map
259 option will create new streams in the output file and map input streams to
260 them. E.g. avconv -i INPUT -map 0 OUTPUT will create an output stream for
261 each stream in the first input file.
262 * The -map option now has slightly different and more powerful syntax:
263 + Colons (':') are used to separate file index/stream type/stream index
264 instead of dots. Comma (',') is used to separate the sync stream instead
265 of colon.. This is done for consistency with other options.
266 + It's possible to specify stream type. E.g. -map 0:a:2 creates an
267 output stream from the third input audio stream.
268 + Omitting the stream index now maps all the streams of the given type,
269 not just the first. E.g. -map 0:s creates output streams for all the
270 subtitle streams in the first input file.
271 + Since -map can now match multiple streams, negative mappings were
272 introduced. Negative mappings disable some streams from an already
273 defined map. E.g. '-map 0 -map -0:a:1' means 'create output streams for
274 all the stream in the first input file, except for the second audio
276 * There is a new option -c (or -codec) for choosing the decoder/encoder to
277 use, which allows to precisely specify target stream(s) consistently with
278 other options. E.g. -c:v lib264 sets the codec for all video streams, -c:a:0
279 libvorbis sets the codec for the first audio stream and -c copy copies all
280 the streams without reencoding. Old -vcodec/-acodec/-scodec options are now
282 * It is now possible to precisely specify which stream should an AVOption
283 apply to. E.g. -b:v:0 2M sets the bitrate for the first video stream, while
284 -b:a 128k sets the bitrate for all audio streams. Note that the old -ab 128k
285 syntax is deprecated and will stop working soon.
286 * -map_chapters now takes only an input file index and applies to the next
287 output file. This is consistent with how all the other options work.
288 * -map_metadata now takes only an input metadata specifier and applies to
289 the next output file. Output metadata specifier is now part of the option
290 name, similarly to the AVOptions/map/codec feature above.
291 * -metadata can now be used to set metadata on streams and chapters, e.g.
292 -metadata:s:1 language=eng sets the language of the first stream to 'eng'.
293 This made -vlang/-alang/-slang options redundant, so they were removed.
294 * -qscale option now uses stream specifiers and applies to all streams, not
295 just video. I.e. plain -qscale number would now apply to all streams. To get
296 the old behavior, use -qscale:v. Also there is now a shortcut -q for -qscale
297 and -aq is now an alias for -q:a.
298 * -vbsf/-absf/-sbsf options were removed and replaced by a -bsf option which
299 uses stream specifiers. Use -bsf:v/a/s instead of the old options.
300 * -itsscale option now uses stream specifiers, so its argument is only the
302 * -intra option was removed, use -g 0 for the same effect.
303 * -psnr option was removed, use -flags +psnr for the same effect.
304 * -vf option is now an alias to the new -filter option, which uses stream specifiers.
305 * -vframes/-aframes/-dframes options are now aliases to the new -frames option.
306 * -vtag/-atag/-stag options are now aliases to the new -tag option.
308 - Windows Media Image decoder
312 - libcdio-paranoia input device for audio CD grabbing
314 - Apple ProRes decoder
315 - CELT in Ogg demuxing
316 - VC-1 interlaced decoding
317 - lut, lutrgb, and lutyuv filters
320 - Speex encoding via libspeex
321 - 4:2:2 H.264 decoding support
322 - 4:2:2 and 4:4:4 H.264 encoding with libx264
323 - Pulseaudio input device
324 - replacement Indeo 3 decoder
325 - TLS/SSL and HTTPS protocol support
326 - AVOptions API rewritten and documented
327 - most of CODEC_FLAG2_*, some CODEC_FLAG_* and many codec-specific fields in
328 AVCodecContext deprecated. Codec private options should be used instead.
329 - Properly working defaults in libx264 wrapper, support for native presets.
330 - Encrypted OMA files support
331 - Discworld II BMV decoding support
333 - OS X Video Decoder Acceleration (VDA) support
334 - CRI ADX audio format muxer and demuxer
335 - Playstation Portable PMP format demuxer
336 - PCM format support in OMA demuxer
338 - Dxtory capture format decoder
339 - v410 QuickTime uncompressed 4:4:4 10-bit encoder and decoder
341 - Simple segmenting muxer
348 - E-AC-3 audio encoder
349 - ac3enc: add channel coupling support
350 - floating-point sample format support for (E-)AC-3, DCA, AAC, Vorbis decoders
351 - H.264/MPEG frame-level multithreading
352 - av_metadata_* functions renamed to av_dict_* and moved to libavutil
353 - 4:4:4 H.264 decoding support
354 - 10-bit H.264 optimizations for x86
355 - bump libswscale for recently reported ABI break
360 - VP8 frame-level multithreading
361 - NEON optimizations for VP8
362 - removed a lot of deprecated API cruft
363 - FFT and IMDCT optimizations for AVX (Sandy Bridge) processors
365 - SMPTE 302M AES3 audio decoder
366 - ffmpeg no longer quits after the 'q' key is pressed; use 'ctrl+c' instead
367 - 9bit and 10bit per sample support in the H.264 decoder
372 - WebM support in Matroska de/muxer
373 - low overhead Ogg muxing
375 - VP8 de/encoding via libvpx
376 - Demuxer for On2's IVF format
377 - Pictor/PC Paint decoder
379 - libfaad2 wrapper removed
380 - DTS-ES extension (XCh) decoding support
382 - RTSP tunneling over HTTP
383 - RTP depacketization of SVQ3
384 - -strict inofficial replaced by -strict unofficial
385 - ffplay -exitonkeydown and -exitonmousedown options added
386 - native GSM / GSM MS decoder
387 - RTP depacketization of QDM2
388 - ANSI/ASCII art playback system
389 - Lego Mindstorms RSO de/muxer
390 - SubRip subtitle file muxer and demuxer
391 - Chinese AVS encoding via libxavs
392 - ffprobe -show_packets option added
393 - RTP packetization of Theora and Vorbis
394 - RTP depacketization of MP4A-LATM
395 - RTP packetization and depacketization of VP8
397 - Apple HTTP Live Streaming demuxer
400 - G.722 ADPCM audio encoder/decoder
403 - frei0r wrapper filter
404 - change crop filter syntax to width:height:x:y
405 - make the crop filter accept parametric expressions
406 - make ffprobe accept AVFormatContext options
409 - Demuxer for Leitch/Harris' VR native stream format (LXF)
410 - RTP depacketization of the X-QT QuickTime format
411 - SAP (Session Announcement Protocol, RFC 2974) muxer and demuxer
413 - ffmpeg -crop* options removed
414 - transpose filter added
415 - ffmpeg -force_key_frames option added
416 - demuxer for receiving raw rtp:// URLs without an SDP description
417 - single stream LATM/LOAS decoder
418 - setpts filter added
419 - Win64 support for optimized x86 assembly functions
420 - MJPEG/AVI1 to JPEG/JFIF bitstream filter
421 - ASS subtitle encoder and decoder
422 - IEC 61937 encapsulation for E-AC-3, TrueHD, DTS-HD (for HDMI passthrough)
423 - overlay filter added
424 - rename aspect filter to setdar, and pixelaspect to setsar
426 - Mobotix .mxg demuxer
427 - frei0r source added
428 - hqdn3d filter added
429 - RTP depacketization of QCELP
431 - gradfun filter added
433 - replace the ocv_smooth filter with a more generic ocv filter
434 - Windows Televison (WTV) demuxer
435 - FFmpeg metadata format muxer and demuxer
436 - SubRip (srt) subtitle decoder
437 - floating-point AC-3 encoder added
439 - ffmpeg -copytb option added
441 - Wing Commander IV movies decoder added
443 - Bink version 'b' audio and video decoder
444 - Bitmap Brothers JV playback system
445 - Apple HTTP Live Streaming protocol handler
446 - sndio support for playback and record
447 - Linux framebuffer input device added
448 - Chronomaster DFA decoder
449 - Mobotix MxPEG decoder
450 - AAC encoding via libvo-aacenc
451 - AMR-WB encoding via libvo-amrwbenc
453 - fieldorder video filter added
458 - PB-frame decoding for H.263
459 - deprecated vhook subsystem removed
460 - deprecated old scaler removed
462 - Alpha channel scaler
464 - RTP packetization of H.263
465 - RTP packetization of AMR
466 - RTP depacketization of Vorbis
467 - CorePNG decoding support
468 - Cook multichannel decoding support
469 - introduced avlanguage helpers in libavformat
470 - 8088flex TMV demuxer and decoder
471 - per-stream language-tags extraction in asfdec
472 - V210 decoder and encoder
473 - remaining GPL parts in AC-3 decoder converted to LGPL
475 - SoX native format muxer and demuxer
476 - AMR-NB decoding/encoding, AMR-WB decoding via OpenCORE libraries
478 - Electronic Arts Madcow decoder
479 - DivX (XSUB) subtitle encoder
480 - nonfree libamr support for AMR-NB/WB decoding/encoding removed
481 - experimental AAC encoder
482 - RTP depacketization of ASF and RTSP from WMS servers
483 - RTMP support in libavformat
484 - noX handling for OPT_BOOL X options
486 - IEC-61937 compatible Muxer
488 - Bluray (PGS) subtitle decoder
489 - LPCM support in MPEG-TS (HDMV RID as found on Blu-ray disks)
491 - Core Audio Format demuxer
493 - MD STUDIO audio demuxer
494 - RF64 support in WAV demuxer
495 - MPEG-4 Audio Lossless Coding (ALS) decoder
496 - -formats option split into -formats, -codecs, -bsfs, and -protocols
498 - CDG demuxer and decoder
500 - Auravision Aura 1 and 2 decoders
501 - Deluxe Paint Animation playback system
503 - Adobe Filmstrip muxer and demuxer
504 - RTP depacketization of H.263
505 - Bink demuxer and audio/video decoders
506 - enable symbol versioning by default for linkers that support it
507 - IFF PBM/ILBM bitmap decoder
510 - RTP depacketization of AMR
516 - Kega Game Video (KGV1) decoder
517 - VorbisComment writing for FLAC, Ogg FLAC and Ogg Speex files
518 - RTP depacketization of Theora
519 - HTTP Digest authentication
520 - RTMP/RTMPT/RTMPS/RTMPE/RTMPTE protocol support via librtmp
521 - Psygnosis YOP demuxer and video decoder
522 - spectral extension support in the E-AC-3 decoder
523 - unsharp video filter
524 - RTP hinting in the mov/3gp/mp4 muxer
525 - Dirac in Ogg demuxing
526 - seek to keyframes in Ogg
527 - 4:2:2 and 4:4:4 Theora decoding
528 - 35% faster VP3/Theora decoding
529 - faster AAC decoding
530 - faster H.264 decoding
531 - RealAudio 1.0 (14.4K) encoder
536 - DV50 AKA DVCPRO50 encoder, decoder, muxer and demuxer
537 - TechSmith Camtasia (TSCC) video decoder
538 - IBM Ultimotion (ULTI) video decoder
539 - Sierra Online audio file demuxer and decoder
540 - Apple QuickDraw (qdrw) video decoder
541 - Creative ADPCM audio decoder (16 bits as well as 8 bits schemes)
542 - Electronic Arts Multimedia (WVE/UV2/etc.) file demuxer
543 - Miro VideoXL (VIXL) video decoder
544 - H.261 video encoder
546 - Nullsoft Video (NSV) file demuxer
547 - Shorten audio decoder
549 - Apple Lossless Audio Codec (ALAC) decoder
550 - Winnov WNV1 video decoder
551 - Autodesk Animator Studio Codec (AASC) decoder
552 - Indeo 2 video decoder
553 - Fraps FPS1 video decoder
554 - Snow video encoder/decoder
555 - Sonic audio encoder/decoder
556 - Vorbis audio decoder
557 - Macromedia ADPCM decoder
558 - Duck TrueMotion 2 video decoder
559 - support for decoding FLX and DTA extensions in FLIC files
560 - H.264 custom quantization matrices support
561 - ffserver fixed, it should now be usable again
563 - Real Cooker audio decoder
564 - TrueSpeech audio decoder
565 - WMA2 audio decoder fixed, now all files should play correctly
566 - RealAudio 14.4 and 28.8 decoders fixed
568 - build system improvements
569 - tabs and trailing whitespace removed from the codebase
570 - CamStudio video decoder
571 - AIFF/AIFF-C audio format, encoding and decoding
572 - ADTS AAC file reading and writing
573 - Creative VOC file reading and writing
574 - American Laser Games multimedia (*.mm) playback system
575 - Zip Motion Blocks Video decoder
576 - improved Theora/VP3 decoder
577 - True Audio (TTA) decoder
578 - AVS demuxer and video decoder
580 - Smacker demuxer and decoder
581 - NuppelVideo/MythTV demuxer and RTjpeg decoder
583 - MPEG-2 intra VLC support
584 - MPEG-2 4:2:2 encoder
585 - Flash Screen Video decoder
587 - Chinese AVS decoder
590 - VC-1/WMV3/WMV9 video decoder
593 - VMware video decoder
596 - WavPack lossless audio decoder
597 - Targa (.TGA) picture decoder
598 - Vorbis audio encoder
599 - Delphine Software .cin demuxer/audio and video decoder
600 - Tiertex .seq demuxer/video decoder
602 - TIFF picture encoder and decoder
603 - GIF picture decoder
604 - Intel Music Coder decoder
605 - Zip Motion Blocks Video encoder
607 - Flash Screen Video encoder
608 - Theora encoding via libtheora
611 - GSM-MS encoder and decoder
613 - DXA demuxer and decoder
615 - Gamecube movie (.THP) playback system
616 - Blackfin optimizations
617 - Interplay C93 demuxer and video decoder
618 - Bethsoft VID demuxer and video decoder
621 - V.Flash PTX decoder
622 - RoQ muxer, RoQ audio encoder
623 - Renderware TXD demuxer and decoder
624 - extern C declarations for C++ removed from headers
625 - sws_flags command line option
629 - OS/2 support removed and restored again
632 - additional SPARC (VIS) optimizations
634 - slice-based parallel H.264 decoding
635 - Monkey's Audio demuxer and decoder
636 - AMV audio and video decoder
638 - H.264 PAFF decoding
639 - Nellymoser ASAO decoder
640 - Beam Software SIFF demuxer and decoder
641 - libvorbis Vorbis decoding removed in favor of native decoder
642 - IntraX8 (J-Frame) subdecoder for WMV2 and VC-1
643 - Ogg (Theora, Vorbis and FLAC) muxer
644 - The "device" muxers and demuxers are now in a new libavdevice library
645 - PC Paintbrush PCX decoder
646 - Sun Rasterfile decoder
647 - TechnoTrend PVA demuxer
648 - Linux Media Labs MPEG-4 (LMLM4) demuxer
649 - AVM2 (Flash 9) SWF muxer
650 - QT variant of IMA ADPCM encoder
652 - iPod/iPhone compatible mp4 muxer
654 - MSN TCP Webcam stream demuxer
655 - RL2 demuxer / decoder
658 - non-recursive Makefiles
660 - MAXIS EA XA (.xa) demuxer / decoder
664 - Electronic Arts CMV decoder
665 - Motion Pixels Video decoder
666 - Motion Pixels MVI demuxer
667 - removed animated GIF decoder/demuxer
668 - D-Cinema audio muxer
669 - Electronic Arts TGV decoder
670 - Apple Lossless Audio Codec (ALAC) encoder
672 - floating point PCM encoder/decoder
674 - DV100 AKA DVCPRO HD decoder and demuxer
675 - E-AC-3 support added to AC-3 decoder
676 - Nellymoser ASAO encoder
677 - ASS and SSA demuxer and muxer
678 - liba52 wrapper removed
679 - SVQ3 watermark decoding support
680 - Speex decoding via libspeex
681 - Electronic Arts TGQ decoder
683 - QCELP / PureVoice decoder
685 - hybrid WavPack support
686 - R3D REDCODE demuxer
687 - ALSA support for playback and record
688 - Electronic Arts TQI decoder
689 - OpenJPEG based JPEG 2000 decoder
690 - NC (NC4600) camera file demuxer
691 - Gopher client support
693 - generic metadata API
698 - DV encoder, DV muxer
699 - Microsoft RLE video decoder
700 - Microsoft Video-1 decoder
701 - Apple Animation (RLE) decoder
702 - Apple Graphics (SMC) decoder
703 - Apple Video (RPZA) decoder
705 - Sega FILM (CPK) file demuxer
706 - Westwood multimedia support (VQA & AUD files)
707 - Id Quake II CIN playback support
709 - FLIC playback support
710 - RealVideo 2.0 (RV20) decoder
711 - Duck TrueMotion v1 (DUCK) video decoder
712 - Sierra VMD demuxer and video decoder
713 - MSZH and ZLIB decoder support
717 - rate distortion optimal cbp support
718 - rate distorted optimal ac prediction for MPEG-4
719 - rate distorted optimal lambda->qp support
720 - AAC encoding with libfaac
721 - Sunplus JPEG codec (SP5X) support
722 - use Lagrange multipler instead of QP for ratecontrol
723 - Theora/VP3 decoding support
724 - XA and ADX ADPCM codecs
725 - export MPEG-2 active display area / pan scan
726 - Add support for configuring with IBM XLC
727 - floating point AAN DCT
728 - initial support for zygo video (not complete)
730 - new audio/video parser API
732 - av_read_frame() and av_seek_frame() support
733 - missing last frame fixes
734 - seek by mouse in ffplay
735 - noise reduction of DCT coefficients
736 - H.263 OBMC & 4MV support
737 - H.263 alternative inter vlc support
739 - H.263 slice structured mode
740 - interlaced DCT support for MPEG-2 encoding
741 - stuffing to stay above min_bitrate
742 - MB type & QP visualization
743 - frame stepping for ffplay
744 - interlaced motion estimation
745 - alternate scantable support
746 - SVCD scan offset support
749 - quantizer noise shaping
750 - G.726 ADPCM audio codec
752 - multithreaded/SMP motion estimation
753 - multithreaded/SMP encoding for MPEG-1/MPEG-2/MPEG-4/H.263
754 - multithreaded/SMP decoding for MPEG-2
756 - Metrowerks CodeWarrior suppport
757 - H.263+ custom pcf support
758 - nicer output for 'ffmpeg -formats'
760 - SGI image format, encoding and decoding
761 - H.264 loop filter support
762 - H.264 CABAC support
763 - nicer looking arrows for the motion vector visualization
764 - improved VCD support
765 - audio timestamp drift compensation
766 - MPEG-2 YUV 422/444 support
767 - polyphase kaiser windowed sinc and blackman nuttall windowed sinc audio resample
768 - better image scaling
770 - correctly interleave packets during encoding
771 - VIS optimized motion compensation
772 - intra_dc_precision>0 encoding support
773 - support reuse of motion vectors/MB types/field select values of the source video
774 - more accurate deblock filter
776 - many optimizations and bugfixes
777 - FunCom ISS audio file demuxer and according ADPCM decoding
782 - MPEG-2 video encoding (Michael)
783 - Id RoQ playback subsystem (Mike Melanson and Tim Ferguson)
784 - Wing Commander III Movie (.mve) file playback subsystem (Mike Melanson
786 - Xan DPCM audio decoder (Mario Brito)
787 - Interplay MVE playback subsystem (Mike Melanson)
788 - Duck DK3 and DK4 ADPCM audio decoders (Mike Melanson)
793 - RealAudio 1.0 (14_4) and 2.0 (28_8) native decoders. Author unknown, code from mplayerhq
794 (originally from public domain player for Amiga at http://www.honeypot.net/audio)
795 - current version now also compiles with older GCC (Fabrice)
796 - 4X multimedia playback system including 4xm file demuxer (Mike
797 Melanson), and 4X video and audio codecs (Michael)
798 - Creative YUV (CYUV) decoder (Mike Melanson)
799 - FFV1 codec (our very simple lossless intra only codec, compresses much better
800 than HuffYUV) (Michael)
801 - ASV1 (Asus), H.264, Intel indeo3 codecs have been added (various)
802 - tiny PNG encoder and decoder, tiny GIF decoder, PAM decoder (PPM with
803 alpha support), JPEG YUV colorspace support. (Fabrice Bellard)
804 - ffplay has been replaced with a newer version which uses SDL (optionally)
805 for multiplatform support (Fabrice)
806 - Sorenson Version 3 codec (SVQ3) support has been added (decoding only) - donated
808 - AMR format has been added (Johannes Carlsson)
809 - 3GP support has been added (Johannes Carlsson)
810 - VP3 codec has been added (Mike Melanson)
811 - more MPEG-1/2 fixes
812 - better multiplatform support, MS Visual Studio fixes (various)
813 - AltiVec optimizations (Magnus Damn and others)
814 - SH4 processor support has been added (BERO)
815 - new public interfaces (avcodec_get_pix_fmt) (Roman Shaposhnick)
816 - VOB streaming support (Brian Foley)
817 - better MP3 autodetection (Andriy Rysin)
818 - qpel encoding (Michael)
819 - 4mv+b frames encoding finally fixed (Michael)
820 - chroma ME (Michael)
821 - 5 comparison functions for ME (Michael)
822 - B-frame encoding speedup (Michael)
823 - WMV2 codec (unfinished - Michael)
824 - user specified diamond size for EPZS (Michael)
825 - Playstation STR playback subsystem, still experimental (Mike and Michael)
826 - ASV2 codec (Michael)
827 - CLJR decoder (Alex)
829 .. And lots more new enhancements and fixes.
834 - completely new integer only MPEG audio layer 1/2/3 decoder rewritten
836 - Recoded DCT and motion vector search with gcc (no longer depends on nasm)
837 - fix quantization bug in AC3 encoder
838 - added PCM codecs and format. Corrected WAV/AVI/ASF PCM issues
839 - added prototype ffplay program
840 - added GOB header parsing on H.263/H.263+ decoder (Juanjo)
841 - bug fix on MCBPC tables of H.263 (Juanjo)
842 - bug fix on DC coefficients of H.263 (Juanjo)
843 - added Advanced Prediction Mode on H.263/H.263+ decoder (Juanjo)
844 - now we can decode H.263 streams found in QuickTime files (Juanjo)
845 - now we can decode H.263 streams found in VIVO v1 files(Juanjo)
846 - preliminary RTP "friendly" mode for H.263/H.263+ coding. (Juanjo)
847 - added GOB header for H.263/H.263+ coding on RTP mode (Juanjo)
848 - now H.263 picture size is returned on the first decoded frame (Juanjo)
849 - added first regression tests
850 - added MPEG-2 TS demuxer
851 - new demux API for libav
852 - more accurate and faster IDCT (Michael)
853 - faster and entropy-controlled motion search (Michael)
854 - two pass video encoding (Michael)
855 - new video rate control (Michael)
856 - added MSMPEG4V1, MSMPEGV2 and WMV1 support (Michael)
857 - great performance improvement of video encoders and decoders (Michael)
858 - new and faster bit readers and vlc parsers (Michael)
859 - high quality encoding mode: tries all macroblock/VLC types (Michael)
860 - added DV video decoder
861 - preliminary RTP/RTSP support in ffserver and libavformat
862 - H.263+ AIC decoding/encoding support (Juanjo)
863 - VCD MPEG-PS mode (Juanjo)
864 - PSNR stuff (Juanjo)
865 - simple stats output (Juanjo)
866 - 16-bit and 15-bit RGB/BGR/GBR support (Bisqwit)
871 - some header fixes (Zdenek Kabelac <kabi at informatics.muni.cz>)
872 - many MMX optimizations (Nick Kurshev <nickols_k at mail.ru>)
873 - added configure system (actually a small shell script)
874 - added MPEG audio layer 1/2/3 decoding using LGPL'ed mpglib by
875 Michael Hipp (temporary solution - waiting for integer only
877 - fixed VIDIOCSYNC interrupt
878 - added Intel H.263 decoding support ('I263' AVI fourCC)
879 - added Real Video 1.0 decoding (needs further testing)
880 - simplified image formats again. Added PGM format (=grey
881 pgm). Renamed old PGM to PGMYUV.
882 - fixed msmpeg4 slice issues (tell me if you still find problems)
883 - fixed OpenDivX bugs with newer versions (added VOL header decoding)
884 - added support for MPlayer interface
885 - added macroblock skip optimization
886 - added MJPEG decoder
887 - added mmx/mmxext IDCT from libmpeg2
888 - added pgmyuvpipe, ppm, and ppm_pipe formats (original patch by Celer
889 <celer at shell.scrypt.net>)
890 - added pixel format conversion layer (e.g. for MJPEG or PPM)
891 - added deinterlacing option
893 - MPEG-4 vol header fixes (Jonathan Marsden <snmjbm at pacbell.net>)
894 - ARM optimizations (Lionel Ulmer <lionel.ulmer at free.fr>).
895 - Windows porting of file converter
896 - added MJPEG raw format (input/ouput)
897 - added JPEG image format support (input/output)
902 - fixed some std header definitions (Bjorn Lindgren
903 <bjorn.e.lindgren at telia.com>).
904 - added MPEG demuxer (MPEG-1 and 2 compatible).
906 - added prototype RM demuxer
907 - added AC3 decoding (done with libac3 by Aaron Holtzman)
908 - added decoding codec parameter guessing (.e.g. for MPEG, because the
909 header does not include them)
910 - fixed header generation in MPEG-1, AVI and ASF muxer: wmplayer can now
911 play them (only tested video)
912 - fixed H.263 white bug
913 - fixed phase rounding in img resample filter
914 - add MMX code for polyphase img resample filter
915 - added CPU autodetection
916 - added generic title/author/copyright/comment string handling (ASF and RM
918 - added SWF demux to extract MP3 track (not usable yet because no MP3
920 - added fractional frame rate support
921 - codecs are no longer searched by read_header() (should fix ffserver
927 - BGR24 patch (initial patch by Jeroen Vreeken <pe1rxq at amsat.org>)
928 - fixed raw yuv output
929 - added motion rounding support in MPEG-4
930 - fixed motion bug rounding in MSMPEG4
931 - added B-frame handling in video core
932 - added full MPEG-1 decoding support
933 - added partial (frame only) MPEG-2 support
934 - changed the FOURCC code for H.263 to "U263" to be able to see the
935 +AVI/H.263 file with the UB Video H.263+ decoder. MPlayer works with
936 this +codec ;) (JuanJo).
937 - Halfpel motion estimation after MB type selection (JuanJo)
938 - added pgm and .Y.U.V output format
939 - suppressed 'img:' protocol. Simply use: /tmp/test%d.[pgm|Y] as input or
941 - added pgmpipe I/O format (original patch from Martin Aumueller
942 <lists at reserv.at>, but changed completely since we use a format
943 instead of a protocol)
948 - added H.263/MPEG-4/MSMPEG4 decoding support. MPEG-4 decoding support
949 (for OpenDivX) is almost complete: 8x8 MVs and rounding are
950 missing. MSMPEG4 support is complete.
951 - added prototype MPEG-1 decoder. Only I- and P-frames handled yet (it
952 can decode ffmpeg MPEGs :-)).
953 - added libavcodec API documentation (see apiexample.c).
954 - fixed image polyphase bug (the bottom of some images could be
956 - added support for non clipped motion vectors (decoding only)
957 and image sizes non-multiple of 16
958 - added support for AC prediction (decoding only)
959 - added file overwrite confirmation (can be disabled with -y)
960 - added custom size picture to H.263 using H.263+ (Juanjo)
965 - added MSMPEG4 (aka DivX) compatible encoder. Changed default codec
966 of AVI and ASF to DIV3.
967 - added -me option to set motion estimation method
968 (default=log). suppressed redundant -hq option.
969 - added options -acodec and -vcodec to force a given codec (useful for
972 - improved dct_quantize speed
973 - factorized some motion estimation code
978 - removing grab code from ffserver and moved it to ffmpeg. Added
979 multistream support to ffmpeg.
980 - added timeshifting support for live feeds (option ?date=xxx in the
982 - added high quality image resize code with polyphase filter (need
983 mmx/see optimization). Enable multiple image size support in ffserver.
984 - added multi live feed support in ffserver
985 - suppressed master feature from ffserver (it should be done with an
986 external program which opens the .ffm url and writes it to another
988 - added preliminary support for video stream parsing (WAV and AVI half
989 done). Added proper support for audio/video file conversion in
991 - added preliminary support for video file sending from ffserver
992 - redesigning I/O subsystem: now using URL based input and output
994 - added WAV format support
995 - added "tty user interface" to ffmpeg to stop grabbing gracefully
996 - added MMX/SSE optimizations to SAD (Sums of Absolutes Differences)
997 (Juan J. Sierralta P. a.k.a. "Juanjo" <juanjo at atmlab.utfsm.cl>)
998 - added MMX DCT from mpeg2_movie 1.5 (Juanjo)
999 - added new motion estimation algorithms, log and phods (Juanjo)
1000 - changed directories: libav for format handling, libavcodec for
1006 - added stereo in MPEG audio encoder
1011 - added 'high quality' mode which use motion vectors. It can be used in
1012 real time at low resolution.
1013 - fixed rounding problems which caused quality problems at high
1014 bitrates and large GOP size
1017 version 0.3.2: small fixes
1023 version 0.3.1: added avi/divx support
1026 - added MPEG-4 codec compatible with OpenDivX. It is based on the H.263 codec
1027 - added sound for flash format (not tested)
1030 version 0.3: initial public release