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)
49 - shuffleplanes filter
50 - replaygain data export
51 - Alias PIX image encoder and decoder
52 - BRender PIX image decoder
53 - Amazing Studio PAF playback support
55 - BMP standalone parser
56 - OpenEXR image decoder
57 - support encoding and decoding 4-channel SGI images
58 - support decoding 16-bit RLE SGI images
60 - LucasArts SMUSH SANM video decoder
61 - LucasArts SMUSH VIMA audio decoder (ADPCM)
62 - LucasArts SMUSH demuxer
63 - MP2 encoding via TwoLAME
65 - Silicon Graphics RLE 8-bit video decoder
66 - Silicon Graphics Motion Video Compressor 1 & 2 decoder
67 - Silicon Graphics Movie demuxer
68 - On2 AVC (Audio for Video) decoder
69 - support for decoding through DXVA2 in avconv
70 - libbs2b-based stereo-to-binaural audio filter
72 - display matrix export and rotation API
73 - drop avserver, it was unmaintained for years and largely broken
75 - request Icecast metadata by default
76 - support for using metadata in stream specifiers in avtools
82 - support ID3v2 tags in ASF files
83 - reference-counting for AVFrame and AVPacket data
84 - avconv now fails when input options are used for output file
86 - avconv options -filter_script and -filter_complex_script, which allow a
87 filtergraph description to be read from a file
88 - uniform options syntax across all filters
91 - asetpts filter (same as setpts, but for audio)
92 - trim and atrim filters
93 - avconv -t and -ss (output-only) options are now sample-accurate when
95 - Matroska muxer can now put the index at the beginning of the file.
96 - avconv -deinterlace option removed, the yadif filter should be used instead
97 - Apple Intermediate Codec decoder
98 - Escape 130 video decoder
99 - support for slice multithreading in libavfilter
100 - VC-1 interlaced B-frame support
101 - support for WavPack muxing (raw and in Matroska)
103 - WavPack encoding through libwavpack
104 - Added the -n parameter to avconv
106 - when transcoding with avconv (i.e. not streamcopying), -ss is now accurate
107 even when used as an input option. Previous behavior can be restored with
108 the -noaccurate_seek option.
109 - avconv -t option can now be used for inputs, to limit the duration of
110 data read from an input file
111 - Voxware MetaSound decoder
113 - Error Resilient AAC syntax (ER AAC LC) decoding
114 - Low Delay AAC (ER AAC LD) decoding
115 - mux chapters in ASF files
116 - Opus in Ogg demuxing
117 - Enhanced Low Delay AAC (ER AAC ELD) decoding (no LD SBR support)
119 - HNM version 4 demuxer and video decoder
121 - raw HEVC, HEVC in MOV/MP4, HEVC in Matroska, HEVC in MPEG-TS demuxing
122 - remove avplay -vismv option, which has not worked for a long time
124 - setsar/setdar filters now support variables in ratio expressions
125 - dar variable in the scale filter now returns the actual DAR (i.e. a * sar)
127 - support for decoding through VDPAU in avconv (the -hwaccel option)
128 - remove mp3_header_(de)compress bitstream filters
129 - stereoscopic 3d metadata handling
130 - png standalone parser
131 - WebP encoding via libwebp
134 - Mirillis FIC video decoder
136 - compand audio filter
140 - av_basename and av_dirname
141 - adobe and limelight publisher authentication in RTMP
142 - VDPAU hardware acceleration through normal hwaccel
147 - ashowinfo audio filter
148 - 24-bit FLAC encoding
149 - audio volume filter
150 - deprecated the avconv -vol option. the volume filter is to be used instead.
151 - multi-channel ALAC encoding up to 7.1
152 - TAK demuxer, parser, and decoder
153 - adaptive frame-level multithreading for H.264
157 - metadata (INFO tag) support in WAV muxer
158 - support for building DLLs using MSVC
159 - remove avserver daemon mode
160 - support building on the Plan 9 operating system
161 - ffv1: support version 1.3
166 - XWD encoder and decoder
167 - Support for fragmentation in the mov/mp4 muxer
168 - ISMV (Smooth Streaming) muxer
169 - CDXL demuxer and decoder
170 - Apple ProRes encoder
171 - Sun Rasterfile Encoder
173 - ID3v2 attached pictures reading and writing
174 - WMA Lossless decoder
176 - RealAudio Lossless decoder
178 - drop support for avconv without libavfilter
179 - add libavresample audio conversion library
180 - audio filters support in libavfilter and avconv
184 - avprobe output is now standard INI or JSON. The old format can still
185 be used with -of old.
186 - Indeo Audio decoder
187 - channelsplit audio filter
188 - RTMPT protocol support
189 - iLBC encoding/decoding via libilbc
190 - Microsoft Screen 1 decoder
192 - audio channel mapping filter
193 - Microsoft ATC Screen decoder
195 - TechSmith Screen Codec 2 decoder
196 - AAC encoding via libfdk-aac
197 - Microsoft Expression Encoder Screen decoder
198 - RTMPS protocol support
199 - RTMPTS protocol support
200 - JPEG 2000 encoding support through OpenJPEG
201 - G.723.1 demuxer and decoder
202 - RTMPE protocol support
203 - RTMPTE protocol support
204 - Canopus Lossless Codec decoder
205 - avconv -shortest option is now per-output file,
206 -pass and -passlogfile are now per-output stream
208 - Microsoft Screen 2 decoder
209 - RTP depacketization of JPEG
210 - Smooth Streaming live segmenter muxer
211 - RTP packetization of JPEG
212 - Opus decoder and encoder using libopus
213 - remove -same_quant, it hasn't worked for years
214 - support for building with MSVC
225 - Automatic thread count based on detection number of (available) CPU cores
226 - Deprecate libpostproc. If desired, the switch --enable-postproc will
227 enable it but it may be removed in a later Libav release.
228 - rv34: frame-level multi-threading
229 - optimized iMDCT transform on x86 using SSE for for mpegaudiodec
235 - Flash Screen Video 2 decoder
236 - ffplay/ffprobe/ffserver renamed to avplay/avprobe/avserver
237 - ffmpeg deprecated, added avconv, which is almost the same for now, except
238 for a few incompatible changes in the options, which will hopefully make them
239 easier to use. The changes are:
240 * The options placement is now strictly enforced! While in theory the
241 options for ffmpeg should be given in [input options] -i INPUT [output
242 options] OUTPUT order, in practice it was possible to give output options
243 before the -i and it mostly worked. Except when it didn't - the behavior was
244 a bit inconsistent. In avconv, it is not possible to mix input and output
245 options. All non-global options are reset after an input or output filename.
246 * All per-file options are now truly per-file - they apply only to the next
247 input or output file and specifying different values for different files
248 will now work properly (notably -ss and -t options).
249 * All per-stream options are now truly per-stream - it is possible to
250 specify which stream(s) should a given option apply to. See the Stream
251 specifiers section in the avconv manual for details.
252 * In ffmpeg some options (like -newvideo/-newaudio/...) are irregular in the
253 sense that they're specified after the output filename instead of before,
254 like all other options. In avconv this irregularity is removed, all options
255 apply to the next input or output file.
256 * -newvideo/-newaudio/-newsubtitle options were removed. Not only were they
257 irregular and highly confusing, they were also redundant. In avconv the -map
258 option will create new streams in the output file and map input streams to
259 them. E.g. avconv -i INPUT -map 0 OUTPUT will create an output stream for
260 each stream in the first input file.
261 * The -map option now has slightly different and more powerful syntax:
262 + Colons (':') are used to separate file index/stream type/stream index
263 instead of dots. Comma (',') is used to separate the sync stream instead
264 of colon.. This is done for consistency with other options.
265 + It's possible to specify stream type. E.g. -map 0:a:2 creates an
266 output stream from the third input audio stream.
267 + Omitting the stream index now maps all the streams of the given type,
268 not just the first. E.g. -map 0:s creates output streams for all the
269 subtitle streams in the first input file.
270 + Since -map can now match multiple streams, negative mappings were
271 introduced. Negative mappings disable some streams from an already
272 defined map. E.g. '-map 0 -map -0:a:1' means 'create output streams for
273 all the stream in the first input file, except for the second audio
275 * There is a new option -c (or -codec) for choosing the decoder/encoder to
276 use, which allows to precisely specify target stream(s) consistently with
277 other options. E.g. -c:v lib264 sets the codec for all video streams, -c:a:0
278 libvorbis sets the codec for the first audio stream and -c copy copies all
279 the streams without reencoding. Old -vcodec/-acodec/-scodec options are now
281 * It is now possible to precisely specify which stream should an AVOption
282 apply to. E.g. -b:v:0 2M sets the bitrate for the first video stream, while
283 -b:a 128k sets the bitrate for all audio streams. Note that the old -ab 128k
284 syntax is deprecated and will stop working soon.
285 * -map_chapters now takes only an input file index and applies to the next
286 output file. This is consistent with how all the other options work.
287 * -map_metadata now takes only an input metadata specifier and applies to
288 the next output file. Output metadata specifier is now part of the option
289 name, similarly to the AVOptions/map/codec feature above.
290 * -metadata can now be used to set metadata on streams and chapters, e.g.
291 -metadata:s:1 language=eng sets the language of the first stream to 'eng'.
292 This made -vlang/-alang/-slang options redundant, so they were removed.
293 * -qscale option now uses stream specifiers and applies to all streams, not
294 just video. I.e. plain -qscale number would now apply to all streams. To get
295 the old behavior, use -qscale:v. Also there is now a shortcut -q for -qscale
296 and -aq is now an alias for -q:a.
297 * -vbsf/-absf/-sbsf options were removed and replaced by a -bsf option which
298 uses stream specifiers. Use -bsf:v/a/s instead of the old options.
299 * -itsscale option now uses stream specifiers, so its argument is only the
301 * -intra option was removed, use -g 0 for the same effect.
302 * -psnr option was removed, use -flags +psnr for the same effect.
303 * -vf option is now an alias to the new -filter option, which uses stream specifiers.
304 * -vframes/-aframes/-dframes options are now aliases to the new -frames option.
305 * -vtag/-atag/-stag options are now aliases to the new -tag option.
307 - Windows Media Image decoder
311 - libcdio-paranoia input device for audio CD grabbing
313 - Apple ProRes decoder
314 - CELT in Ogg demuxing
315 - VC-1 interlaced decoding
316 - lut, lutrgb, and lutyuv filters
319 - Speex encoding via libspeex
320 - 4:2:2 H.264 decoding support
321 - 4:2:2 and 4:4:4 H.264 encoding with libx264
322 - Pulseaudio input device
323 - replacement Indeo 3 decoder
324 - TLS/SSL and HTTPS protocol support
325 - AVOptions API rewritten and documented
326 - most of CODEC_FLAG2_*, some CODEC_FLAG_* and many codec-specific fields in
327 AVCodecContext deprecated. Codec private options should be used instead.
328 - Properly working defaults in libx264 wrapper, support for native presets.
329 - Encrypted OMA files support
330 - Discworld II BMV decoding support
332 - OS X Video Decoder Acceleration (VDA) support
333 - CRI ADX audio format muxer and demuxer
334 - Playstation Portable PMP format demuxer
335 - PCM format support in OMA demuxer
337 - Dxtory capture format decoder
338 - v410 QuickTime uncompressed 4:4:4 10-bit encoder and decoder
340 - Simple segmenting muxer
347 - E-AC-3 audio encoder
348 - ac3enc: add channel coupling support
349 - floating-point sample format support for (E-)AC-3, DCA, AAC, Vorbis decoders
350 - H.264/MPEG frame-level multithreading
351 - av_metadata_* functions renamed to av_dict_* and moved to libavutil
352 - 4:4:4 H.264 decoding support
353 - 10-bit H.264 optimizations for x86
354 - bump libswscale for recently reported ABI break
359 - VP8 frame-level multithreading
360 - NEON optimizations for VP8
361 - removed a lot of deprecated API cruft
362 - FFT and IMDCT optimizations for AVX (Sandy Bridge) processors
364 - SMPTE 302M AES3 audio decoder
365 - ffmpeg no longer quits after the 'q' key is pressed; use 'ctrl+c' instead
366 - 9bit and 10bit per sample support in the H.264 decoder
371 - WebM support in Matroska de/muxer
372 - low overhead Ogg muxing
374 - VP8 de/encoding via libvpx
375 - Demuxer for On2's IVF format
376 - Pictor/PC Paint decoder
378 - libfaad2 wrapper removed
379 - DTS-ES extension (XCh) decoding support
381 - RTSP tunneling over HTTP
382 - RTP depacketization of SVQ3
383 - -strict inofficial replaced by -strict unofficial
384 - ffplay -exitonkeydown and -exitonmousedown options added
385 - native GSM / GSM MS decoder
386 - RTP depacketization of QDM2
387 - ANSI/ASCII art playback system
388 - Lego Mindstorms RSO de/muxer
389 - SubRip subtitle file muxer and demuxer
390 - Chinese AVS encoding via libxavs
391 - ffprobe -show_packets option added
392 - RTP packetization of Theora and Vorbis
393 - RTP depacketization of MP4A-LATM
394 - RTP packetization and depacketization of VP8
396 - Apple HTTP Live Streaming demuxer
399 - G.722 ADPCM audio encoder/decoder
402 - frei0r wrapper filter
403 - change crop filter syntax to width:height:x:y
404 - make the crop filter accept parametric expressions
405 - make ffprobe accept AVFormatContext options
408 - Demuxer for Leitch/Harris' VR native stream format (LXF)
409 - RTP depacketization of the X-QT QuickTime format
410 - SAP (Session Announcement Protocol, RFC 2974) muxer and demuxer
412 - ffmpeg -crop* options removed
413 - transpose filter added
414 - ffmpeg -force_key_frames option added
415 - demuxer for receiving raw rtp:// URLs without an SDP description
416 - single stream LATM/LOAS decoder
417 - setpts filter added
418 - Win64 support for optimized x86 assembly functions
419 - MJPEG/AVI1 to JPEG/JFIF bitstream filter
420 - ASS subtitle encoder and decoder
421 - IEC 61937 encapsulation for E-AC-3, TrueHD, DTS-HD (for HDMI passthrough)
422 - overlay filter added
423 - rename aspect filter to setdar, and pixelaspect to setsar
425 - Mobotix .mxg demuxer
426 - frei0r source added
427 - hqdn3d filter added
428 - RTP depacketization of QCELP
430 - gradfun filter added
432 - replace the ocv_smooth filter with a more generic ocv filter
433 - Windows Televison (WTV) demuxer
434 - FFmpeg metadata format muxer and demuxer
435 - SubRip (srt) subtitle decoder
436 - floating-point AC-3 encoder added
438 - ffmpeg -copytb option added
440 - Wing Commander IV movies decoder added
442 - Bink version 'b' audio and video decoder
443 - Bitmap Brothers JV playback system
444 - Apple HTTP Live Streaming protocol handler
445 - sndio support for playback and record
446 - Linux framebuffer input device added
447 - Chronomaster DFA decoder
448 - Mobotix MxPEG decoder
449 - AAC encoding via libvo-aacenc
450 - AMR-WB encoding via libvo-amrwbenc
452 - fieldorder video filter added
457 - PB-frame decoding for H.263
458 - deprecated vhook subsystem removed
459 - deprecated old scaler removed
461 - Alpha channel scaler
463 - RTP packetization of H.263
464 - RTP packetization of AMR
465 - RTP depacketization of Vorbis
466 - CorePNG decoding support
467 - Cook multichannel decoding support
468 - introduced avlanguage helpers in libavformat
469 - 8088flex TMV demuxer and decoder
470 - per-stream language-tags extraction in asfdec
471 - V210 decoder and encoder
472 - remaining GPL parts in AC-3 decoder converted to LGPL
474 - SoX native format muxer and demuxer
475 - AMR-NB decoding/encoding, AMR-WB decoding via OpenCORE libraries
477 - Electronic Arts Madcow decoder
478 - DivX (XSUB) subtitle encoder
479 - nonfree libamr support for AMR-NB/WB decoding/encoding removed
480 - experimental AAC encoder
481 - RTP depacketization of ASF and RTSP from WMS servers
482 - RTMP support in libavformat
483 - noX handling for OPT_BOOL X options
485 - IEC-61937 compatible Muxer
487 - Bluray (PGS) subtitle decoder
488 - LPCM support in MPEG-TS (HDMV RID as found on Blu-ray disks)
490 - Core Audio Format demuxer
492 - MD STUDIO audio demuxer
493 - RF64 support in WAV demuxer
494 - MPEG-4 Audio Lossless Coding (ALS) decoder
495 - -formats option split into -formats, -codecs, -bsfs, and -protocols
497 - CDG demuxer and decoder
499 - Auravision Aura 1 and 2 decoders
500 - Deluxe Paint Animation playback system
502 - Adobe Filmstrip muxer and demuxer
503 - RTP depacketization of H.263
504 - Bink demuxer and audio/video decoders
505 - enable symbol versioning by default for linkers that support it
506 - IFF PBM/ILBM bitmap decoder
509 - RTP depacketization of AMR
515 - Kega Game Video (KGV1) decoder
516 - VorbisComment writing for FLAC, Ogg FLAC and Ogg Speex files
517 - RTP depacketization of Theora
518 - HTTP Digest authentication
519 - RTMP/RTMPT/RTMPS/RTMPE/RTMPTE protocol support via librtmp
520 - Psygnosis YOP demuxer and video decoder
521 - spectral extension support in the E-AC-3 decoder
522 - unsharp video filter
523 - RTP hinting in the mov/3gp/mp4 muxer
524 - Dirac in Ogg demuxing
525 - seek to keyframes in Ogg
526 - 4:2:2 and 4:4:4 Theora decoding
527 - 35% faster VP3/Theora decoding
528 - faster AAC decoding
529 - faster H.264 decoding
530 - RealAudio 1.0 (14.4K) encoder
535 - DV50 AKA DVCPRO50 encoder, decoder, muxer and demuxer
536 - TechSmith Camtasia (TSCC) video decoder
537 - IBM Ultimotion (ULTI) video decoder
538 - Sierra Online audio file demuxer and decoder
539 - Apple QuickDraw (qdrw) video decoder
540 - Creative ADPCM audio decoder (16 bits as well as 8 bits schemes)
541 - Electronic Arts Multimedia (WVE/UV2/etc.) file demuxer
542 - Miro VideoXL (VIXL) video decoder
543 - H.261 video encoder
545 - Nullsoft Video (NSV) file demuxer
546 - Shorten audio decoder
548 - Apple Lossless Audio Codec (ALAC) decoder
549 - Winnov WNV1 video decoder
550 - Autodesk Animator Studio Codec (AASC) decoder
551 - Indeo 2 video decoder
552 - Fraps FPS1 video decoder
553 - Snow video encoder/decoder
554 - Sonic audio encoder/decoder
555 - Vorbis audio decoder
556 - Macromedia ADPCM decoder
557 - Duck TrueMotion 2 video decoder
558 - support for decoding FLX and DTA extensions in FLIC files
559 - H.264 custom quantization matrices support
560 - ffserver fixed, it should now be usable again
562 - Real Cooker audio decoder
563 - TrueSpeech audio decoder
564 - WMA2 audio decoder fixed, now all files should play correctly
565 - RealAudio 14.4 and 28.8 decoders fixed
567 - build system improvements
568 - tabs and trailing whitespace removed from the codebase
569 - CamStudio video decoder
570 - AIFF/AIFF-C audio format, encoding and decoding
571 - ADTS AAC file reading and writing
572 - Creative VOC file reading and writing
573 - American Laser Games multimedia (*.mm) playback system
574 - Zip Motion Blocks Video decoder
575 - improved Theora/VP3 decoder
576 - True Audio (TTA) decoder
577 - AVS demuxer and video decoder
579 - Smacker demuxer and decoder
580 - NuppelVideo/MythTV demuxer and RTjpeg decoder
582 - MPEG-2 intra VLC support
583 - MPEG-2 4:2:2 encoder
584 - Flash Screen Video decoder
586 - Chinese AVS decoder
589 - VC-1/WMV3/WMV9 video decoder
592 - VMware video decoder
595 - WavPack lossless audio decoder
596 - Targa (.TGA) picture decoder
597 - Vorbis audio encoder
598 - Delphine Software .cin demuxer/audio and video decoder
599 - Tiertex .seq demuxer/video decoder
601 - TIFF picture encoder and decoder
602 - GIF picture decoder
603 - Intel Music Coder decoder
604 - Zip Motion Blocks Video encoder
606 - Flash Screen Video encoder
607 - Theora encoding via libtheora
610 - GSM-MS encoder and decoder
612 - DXA demuxer and decoder
614 - Gamecube movie (.THP) playback system
615 - Blackfin optimizations
616 - Interplay C93 demuxer and video decoder
617 - Bethsoft VID demuxer and video decoder
620 - V.Flash PTX decoder
621 - RoQ muxer, RoQ audio encoder
622 - Renderware TXD demuxer and decoder
623 - extern C declarations for C++ removed from headers
624 - sws_flags command line option
628 - OS/2 support removed and restored again
631 - additional SPARC (VIS) optimizations
633 - slice-based parallel H.264 decoding
634 - Monkey's Audio demuxer and decoder
635 - AMV audio and video decoder
637 - H.264 PAFF decoding
638 - Nellymoser ASAO decoder
639 - Beam Software SIFF demuxer and decoder
640 - libvorbis Vorbis decoding removed in favor of native decoder
641 - IntraX8 (J-Frame) subdecoder for WMV2 and VC-1
642 - Ogg (Theora, Vorbis and FLAC) muxer
643 - The "device" muxers and demuxers are now in a new libavdevice library
644 - PC Paintbrush PCX decoder
645 - Sun Rasterfile decoder
646 - TechnoTrend PVA demuxer
647 - Linux Media Labs MPEG-4 (LMLM4) demuxer
648 - AVM2 (Flash 9) SWF muxer
649 - QT variant of IMA ADPCM encoder
651 - iPod/iPhone compatible mp4 muxer
653 - MSN TCP Webcam stream demuxer
654 - RL2 demuxer / decoder
657 - non-recursive Makefiles
659 - MAXIS EA XA (.xa) demuxer / decoder
663 - Electronic Arts CMV decoder
664 - Motion Pixels Video decoder
665 - Motion Pixels MVI demuxer
666 - removed animated GIF decoder/demuxer
667 - D-Cinema audio muxer
668 - Electronic Arts TGV decoder
669 - Apple Lossless Audio Codec (ALAC) encoder
671 - floating point PCM encoder/decoder
673 - DV100 AKA DVCPRO HD decoder and demuxer
674 - E-AC-3 support added to AC-3 decoder
675 - Nellymoser ASAO encoder
676 - ASS and SSA demuxer and muxer
677 - liba52 wrapper removed
678 - SVQ3 watermark decoding support
679 - Speex decoding via libspeex
680 - Electronic Arts TGQ decoder
682 - QCELP / PureVoice decoder
684 - hybrid WavPack support
685 - R3D REDCODE demuxer
686 - ALSA support for playback and record
687 - Electronic Arts TQI decoder
688 - OpenJPEG based JPEG 2000 decoder
689 - NC (NC4600) camera file demuxer
690 - Gopher client support
692 - generic metadata API
697 - DV encoder, DV muxer
698 - Microsoft RLE video decoder
699 - Microsoft Video-1 decoder
700 - Apple Animation (RLE) decoder
701 - Apple Graphics (SMC) decoder
702 - Apple Video (RPZA) decoder
704 - Sega FILM (CPK) file demuxer
705 - Westwood multimedia support (VQA & AUD files)
706 - Id Quake II CIN playback support
708 - FLIC playback support
709 - RealVideo 2.0 (RV20) decoder
710 - Duck TrueMotion v1 (DUCK) video decoder
711 - Sierra VMD demuxer and video decoder
712 - MSZH and ZLIB decoder support
716 - rate distortion optimal cbp support
717 - rate distorted optimal ac prediction for MPEG-4
718 - rate distorted optimal lambda->qp support
719 - AAC encoding with libfaac
720 - Sunplus JPEG codec (SP5X) support
721 - use Lagrange multipler instead of QP for ratecontrol
722 - Theora/VP3 decoding support
723 - XA and ADX ADPCM codecs
724 - export MPEG-2 active display area / pan scan
725 - Add support for configuring with IBM XLC
726 - floating point AAN DCT
727 - initial support for zygo video (not complete)
729 - new audio/video parser API
731 - av_read_frame() and av_seek_frame() support
732 - missing last frame fixes
733 - seek by mouse in ffplay
734 - noise reduction of DCT coefficients
735 - H.263 OBMC & 4MV support
736 - H.263 alternative inter vlc support
738 - H.263 slice structured mode
739 - interlaced DCT support for MPEG-2 encoding
740 - stuffing to stay above min_bitrate
741 - MB type & QP visualization
742 - frame stepping for ffplay
743 - interlaced motion estimation
744 - alternate scantable support
745 - SVCD scan offset support
748 - quantizer noise shaping
749 - G.726 ADPCM audio codec
751 - multithreaded/SMP motion estimation
752 - multithreaded/SMP encoding for MPEG-1/MPEG-2/MPEG-4/H.263
753 - multithreaded/SMP decoding for MPEG-2
755 - Metrowerks CodeWarrior suppport
756 - H.263+ custom pcf support
757 - nicer output for 'ffmpeg -formats'
759 - SGI image format, encoding and decoding
760 - H.264 loop filter support
761 - H.264 CABAC support
762 - nicer looking arrows for the motion vector visualization
763 - improved VCD support
764 - audio timestamp drift compensation
765 - MPEG-2 YUV 422/444 support
766 - polyphase kaiser windowed sinc and blackman nuttall windowed sinc audio resample
767 - better image scaling
769 - correctly interleave packets during encoding
770 - VIS optimized motion compensation
771 - intra_dc_precision>0 encoding support
772 - support reuse of motion vectors/MB types/field select values of the source video
773 - more accurate deblock filter
775 - many optimizations and bugfixes
776 - FunCom ISS audio file demuxer and according ADPCM decoding
781 - MPEG-2 video encoding (Michael)
782 - Id RoQ playback subsystem (Mike Melanson and Tim Ferguson)
783 - Wing Commander III Movie (.mve) file playback subsystem (Mike Melanson
785 - Xan DPCM audio decoder (Mario Brito)
786 - Interplay MVE playback subsystem (Mike Melanson)
787 - Duck DK3 and DK4 ADPCM audio decoders (Mike Melanson)
792 - RealAudio 1.0 (14_4) and 2.0 (28_8) native decoders. Author unknown, code from mplayerhq
793 (originally from public domain player for Amiga at http://www.honeypot.net/audio)
794 - current version now also compiles with older GCC (Fabrice)
795 - 4X multimedia playback system including 4xm file demuxer (Mike
796 Melanson), and 4X video and audio codecs (Michael)
797 - Creative YUV (CYUV) decoder (Mike Melanson)
798 - FFV1 codec (our very simple lossless intra only codec, compresses much better
799 than HuffYUV) (Michael)
800 - ASV1 (Asus), H.264, Intel indeo3 codecs have been added (various)
801 - tiny PNG encoder and decoder, tiny GIF decoder, PAM decoder (PPM with
802 alpha support), JPEG YUV colorspace support. (Fabrice Bellard)
803 - ffplay has been replaced with a newer version which uses SDL (optionally)
804 for multiplatform support (Fabrice)
805 - Sorenson Version 3 codec (SVQ3) support has been added (decoding only) - donated
807 - AMR format has been added (Johannes Carlsson)
808 - 3GP support has been added (Johannes Carlsson)
809 - VP3 codec has been added (Mike Melanson)
810 - more MPEG-1/2 fixes
811 - better multiplatform support, MS Visual Studio fixes (various)
812 - AltiVec optimizations (Magnus Damn and others)
813 - SH4 processor support has been added (BERO)
814 - new public interfaces (avcodec_get_pix_fmt) (Roman Shaposhnick)
815 - VOB streaming support (Brian Foley)
816 - better MP3 autodetection (Andriy Rysin)
817 - qpel encoding (Michael)
818 - 4mv+b frames encoding finally fixed (Michael)
819 - chroma ME (Michael)
820 - 5 comparison functions for ME (Michael)
821 - B-frame encoding speedup (Michael)
822 - WMV2 codec (unfinished - Michael)
823 - user specified diamond size for EPZS (Michael)
824 - Playstation STR playback subsystem, still experimental (Mike and Michael)
825 - ASV2 codec (Michael)
826 - CLJR decoder (Alex)
828 .. And lots more new enhancements and fixes.
833 - completely new integer only MPEG audio layer 1/2/3 decoder rewritten
835 - Recoded DCT and motion vector search with gcc (no longer depends on nasm)
836 - fix quantization bug in AC3 encoder
837 - added PCM codecs and format. Corrected WAV/AVI/ASF PCM issues
838 - added prototype ffplay program
839 - added GOB header parsing on H.263/H.263+ decoder (Juanjo)
840 - bug fix on MCBPC tables of H.263 (Juanjo)
841 - bug fix on DC coefficients of H.263 (Juanjo)
842 - added Advanced Prediction Mode on H.263/H.263+ decoder (Juanjo)
843 - now we can decode H.263 streams found in QuickTime files (Juanjo)
844 - now we can decode H.263 streams found in VIVO v1 files(Juanjo)
845 - preliminary RTP "friendly" mode for H.263/H.263+ coding. (Juanjo)
846 - added GOB header for H.263/H.263+ coding on RTP mode (Juanjo)
847 - now H.263 picture size is returned on the first decoded frame (Juanjo)
848 - added first regression tests
849 - added MPEG-2 TS demuxer
850 - new demux API for libav
851 - more accurate and faster IDCT (Michael)
852 - faster and entropy-controlled motion search (Michael)
853 - two pass video encoding (Michael)
854 - new video rate control (Michael)
855 - added MSMPEG4V1, MSMPEGV2 and WMV1 support (Michael)
856 - great performance improvement of video encoders and decoders (Michael)
857 - new and faster bit readers and vlc parsers (Michael)
858 - high quality encoding mode: tries all macroblock/VLC types (Michael)
859 - added DV video decoder
860 - preliminary RTP/RTSP support in ffserver and libavformat
861 - H.263+ AIC decoding/encoding support (Juanjo)
862 - VCD MPEG-PS mode (Juanjo)
863 - PSNR stuff (Juanjo)
864 - simple stats output (Juanjo)
865 - 16-bit and 15-bit RGB/BGR/GBR support (Bisqwit)
870 - some header fixes (Zdenek Kabelac <kabi at informatics.muni.cz>)
871 - many MMX optimizations (Nick Kurshev <nickols_k at mail.ru>)
872 - added configure system (actually a small shell script)
873 - added MPEG audio layer 1/2/3 decoding using LGPL'ed mpglib by
874 Michael Hipp (temporary solution - waiting for integer only
876 - fixed VIDIOCSYNC interrupt
877 - added Intel H.263 decoding support ('I263' AVI fourCC)
878 - added Real Video 1.0 decoding (needs further testing)
879 - simplified image formats again. Added PGM format (=grey
880 pgm). Renamed old PGM to PGMYUV.
881 - fixed msmpeg4 slice issues (tell me if you still find problems)
882 - fixed OpenDivX bugs with newer versions (added VOL header decoding)
883 - added support for MPlayer interface
884 - added macroblock skip optimization
885 - added MJPEG decoder
886 - added mmx/mmxext IDCT from libmpeg2
887 - added pgmyuvpipe, ppm, and ppm_pipe formats (original patch by Celer
888 <celer at shell.scrypt.net>)
889 - added pixel format conversion layer (e.g. for MJPEG or PPM)
890 - added deinterlacing option
892 - MPEG-4 vol header fixes (Jonathan Marsden <snmjbm at pacbell.net>)
893 - ARM optimizations (Lionel Ulmer <lionel.ulmer at free.fr>).
894 - Windows porting of file converter
895 - added MJPEG raw format (input/ouput)
896 - added JPEG image format support (input/output)
901 - fixed some std header definitions (Bjorn Lindgren
902 <bjorn.e.lindgren at telia.com>).
903 - added MPEG demuxer (MPEG-1 and 2 compatible).
905 - added prototype RM demuxer
906 - added AC3 decoding (done with libac3 by Aaron Holtzman)
907 - added decoding codec parameter guessing (.e.g. for MPEG, because the
908 header does not include them)
909 - fixed header generation in MPEG-1, AVI and ASF muxer: wmplayer can now
910 play them (only tested video)
911 - fixed H.263 white bug
912 - fixed phase rounding in img resample filter
913 - add MMX code for polyphase img resample filter
914 - added CPU autodetection
915 - added generic title/author/copyright/comment string handling (ASF and RM
917 - added SWF demux to extract MP3 track (not usable yet because no MP3
919 - added fractional frame rate support
920 - codecs are no longer searched by read_header() (should fix ffserver
926 - BGR24 patch (initial patch by Jeroen Vreeken <pe1rxq at amsat.org>)
927 - fixed raw yuv output
928 - added motion rounding support in MPEG-4
929 - fixed motion bug rounding in MSMPEG4
930 - added B-frame handling in video core
931 - added full MPEG-1 decoding support
932 - added partial (frame only) MPEG-2 support
933 - changed the FOURCC code for H.263 to "U263" to be able to see the
934 +AVI/H.263 file with the UB Video H.263+ decoder. MPlayer works with
935 this +codec ;) (JuanJo).
936 - Halfpel motion estimation after MB type selection (JuanJo)
937 - added pgm and .Y.U.V output format
938 - suppressed 'img:' protocol. Simply use: /tmp/test%d.[pgm|Y] as input or
940 - added pgmpipe I/O format (original patch from Martin Aumueller
941 <lists at reserv.at>, but changed completely since we use a format
942 instead of a protocol)
947 - added H.263/MPEG-4/MSMPEG4 decoding support. MPEG-4 decoding support
948 (for OpenDivX) is almost complete: 8x8 MVs and rounding are
949 missing. MSMPEG4 support is complete.
950 - added prototype MPEG-1 decoder. Only I- and P-frames handled yet (it
951 can decode ffmpeg MPEGs :-)).
952 - added libavcodec API documentation (see apiexample.c).
953 - fixed image polyphase bug (the bottom of some images could be
955 - added support for non clipped motion vectors (decoding only)
956 and image sizes non-multiple of 16
957 - added support for AC prediction (decoding only)
958 - added file overwrite confirmation (can be disabled with -y)
959 - added custom size picture to H.263 using H.263+ (Juanjo)
964 - added MSMPEG4 (aka DivX) compatible encoder. Changed default codec
965 of AVI and ASF to DIV3.
966 - added -me option to set motion estimation method
967 (default=log). suppressed redundant -hq option.
968 - added options -acodec and -vcodec to force a given codec (useful for
971 - improved dct_quantize speed
972 - factorized some motion estimation code
977 - removing grab code from ffserver and moved it to ffmpeg. Added
978 multistream support to ffmpeg.
979 - added timeshifting support for live feeds (option ?date=xxx in the
981 - added high quality image resize code with polyphase filter (need
982 mmx/see optimization). Enable multiple image size support in ffserver.
983 - added multi live feed support in ffserver
984 - suppressed master feature from ffserver (it should be done with an
985 external program which opens the .ffm url and writes it to another
987 - added preliminary support for video stream parsing (WAV and AVI half
988 done). Added proper support for audio/video file conversion in
990 - added preliminary support for video file sending from ffserver
991 - redesigning I/O subsystem: now using URL based input and output
993 - added WAV format support
994 - added "tty user interface" to ffmpeg to stop grabbing gracefully
995 - added MMX/SSE optimizations to SAD (Sums of Absolutes Differences)
996 (Juan J. Sierralta P. a.k.a. "Juanjo" <juanjo at atmlab.utfsm.cl>)
997 - added MMX DCT from mpeg2_movie 1.5 (Juanjo)
998 - added new motion estimation algorithms, log and phods (Juanjo)
999 - changed directories: libav for format handling, libavcodec for
1005 - added stereo in MPEG audio encoder
1010 - added 'high quality' mode which use motion vectors. It can be used in
1011 real time at low resolution.
1012 - fixed rounding problems which caused quality problems at high
1013 bitrates and large GOP size
1016 version 0.3.2: small fixes
1022 version 0.3.1: added avi/divx support
1025 - added MPEG-4 codec compatible with OpenDivX. It is based on the H.263 codec
1026 - added sound for flash format (not tested)
1029 version 0.3: initial public release