1 Entries are sorted chronologically from oldest to youngest within each release,
2 releases are sorted from youngest to oldest.
8 - aliases and defaults for Ogg subtypes (opus, spx)
9 - HEVC/H.265 RTP payload format (draft v6) packetizer and depacketizer
10 - avplay now exits by default at the end of playback
11 - XCB-based screen-grabber
12 - creating DASH compatible fragmented MP4, MPEG-DASH segmenting muxer
13 - H.261 RTP payload format (RFC 4587) depacketizer and experimental packetizer
16 - OpenH264 encoder wrapper
17 - Support DNx100 (960x720@8)
18 - Direct3D11-accelerated decoding
19 - DXVA2-accelerated HEVC decoding
20 - AAC ELD 480 decoding
21 - Intel QSV-accelerated H.264 decoding
22 - DSS SP decoder and DSS demuxer
23 - RTP depacketizer for AC3 payload format (RFC 4184)
24 - RTP depacketizer for loss tolerant payload format for MP3 audio (RFC 5219)
25 - RTP depacketizer for DV (RFC 6469)
27 - RTP depacketization of T.140 text (RFC 4103)
28 - VP9 RTP payload format (draft 0) experimental depacketizer
30 - DTS lossless extension (XLL) decoding (not lossless, disabled by default)
31 - Intel QSV-accelerated H.264 encoding
32 - MMAL-accelerated H.264 decoding
33 - DTS decoding through libdcadec
34 - Canopus HQ/HQA decoder
35 - Automatically rotate videos based on metadata in avconv
36 - improved Quickdraw compatibility
37 - NVIDIA NVENC-accelerated H.264 and HEVC encoding support
38 - Multipart JPEG demuxer
39 - Support the extended vp9 profiles in the libvpx wrapper
40 - Hap decoder and encoder
41 - DirectDraw Surface image/texture decoder
42 - rewritten ASF demuxer
43 - Go2Meeting decoding support
44 - Intel QSV-accelerated MPEG-2 video and HEVC encoding
45 - bitstream filter for converting HEVC from MP4 to Annex B
46 - Intel QSV-accelerated MPEG-2 video and HEVC decoding
47 - Support DNx100 (1440x1080@8)
49 - Screenpresso SPV1 decoding
50 - zero-copy Intel QSV transcoding in avconv
51 - libkvazaar HEVC encoder
52 - innoHeim/Rsupport Screen Capture Codec decoder
53 - support encoding 16-bit RLE SGI images
54 - support Apple AVFoundation video capture
55 - G.723.1 muxer and encoder
57 - VAAPI-accelerated format conversion and scaling
58 - libnpp/CUDA-accelerated format conversion and scaling
59 - VAAPI-accelerate H.264/HEVC/MJPEG encoding
60 - Generic OpenMAX IL encoder with support for Raspberry Pi
61 - MMAL-accelerated MPEG-2 and VC-1 decoding
64 - Duck TrueMotion 2.0 Real Time decoder
65 - Intel QSV video scaling and deinterlacing filter
66 - Support MOV with multiple sample description tables
67 - OpenH264 decoder wrapper
68 - Removed the legacy X11 screen grabber, use XCB instead
69 - HDCD decoding filter through libhdcd
74 - shuffleplanes filter
75 - replaygain data export
76 - Alias PIX image encoder and decoder
77 - BRender PIX image decoder
78 - Amazing Studio PAF playback support
80 - BMP standalone parser
81 - OpenEXR image decoder
82 - support encoding and decoding 4-channel SGI images
83 - support decoding 16-bit RLE SGI images
85 - LucasArts SMUSH SANM video decoder
86 - LucasArts SMUSH VIMA audio decoder (ADPCM)
87 - LucasArts SMUSH demuxer
88 - MP2 encoding via TwoLAME
90 - Silicon Graphics RLE 8-bit video decoder
91 - Silicon Graphics Motion Video Compressor 1 & 2 decoder
92 - Silicon Graphics Movie demuxer
93 - On2 AVC (Audio for Video) decoder
94 - support for decoding through DXVA2 in avconv
95 - libbs2b-based stereo-to-binaural audio filter
97 - display matrix export and rotation API
98 - drop avserver, it was unmaintained for years and largely broken
100 - request Icecast metadata by default
101 - support for using metadata in stream specifiers in avtools
102 - Matroska 3D support
107 - support ID3v2 tags in ASF files
108 - reference-counting for AVFrame and AVPacket data
109 - avconv now fails when input options are used for output file
111 - avconv options -filter_script and -filter_complex_script, which allow a
112 filtergraph description to be read from a file
113 - uniform options syntax across all filters
116 - asetpts filter (same as setpts, but for audio)
117 - trim and atrim filters
118 - avconv -t and -ss (output-only) options are now sample-accurate when
120 - Matroska muxer can now put the index at the beginning of the file.
121 - avconv -deinterlace option removed, the yadif filter should be used instead
122 - Apple Intermediate Codec decoder
123 - Escape 130 video decoder
124 - support for slice multithreading in libavfilter
125 - VC-1 interlaced B-frame support
126 - support for WavPack muxing (raw and in Matroska)
128 - WavPack encoding through libwavpack
129 - Added the -n parameter to avconv
131 - when transcoding with avconv (i.e. not streamcopying), -ss is now accurate
132 even when used as an input option. Previous behavior can be restored with
133 the -noaccurate_seek option.
134 - avconv -t option can now be used for inputs, to limit the duration of
135 data read from an input file
136 - Voxware MetaSound decoder
138 - Error Resilient AAC syntax (ER AAC LC) decoding
139 - Low Delay AAC (ER AAC LD) decoding
140 - mux chapters in ASF files
141 - Opus in Ogg demuxing
142 - Enhanced Low Delay AAC (ER AAC ELD) decoding (no LD SBR support)
144 - HNM version 4 demuxer and video decoder
146 - raw HEVC, HEVC in MOV/MP4, HEVC in Matroska, HEVC in MPEG-TS demuxing
147 - remove avplay -vismv option, which has not worked for a long time
149 - setsar/setdar filters now support variables in ratio expressions
150 - dar variable in the scale filter now returns the actual DAR (i.e. a * sar)
152 - support for decoding through VDPAU in avconv (the -hwaccel option)
153 - remove mp3_header_(de)compress bitstream filters
154 - stereoscopic 3d metadata handling
155 - png standalone parser
156 - WebP encoding via libwebp
159 - Mirillis FIC video decoder
161 - compand audio filter
165 - av_basename and av_dirname
166 - adobe and limelight publisher authentication in RTMP
167 - VDPAU hardware acceleration through normal hwaccel
172 - ashowinfo audio filter
173 - 24-bit FLAC encoding
174 - audio volume filter
175 - deprecated the avconv -vol option. the volume filter is to be used instead.
176 - multi-channel ALAC encoding up to 7.1
177 - TAK demuxer, parser, and decoder
178 - adaptive frame-level multithreading for H.264
182 - metadata (INFO tag) support in WAV muxer
183 - support for building DLLs using MSVC
184 - remove avserver daemon mode
185 - support building on the Plan 9 operating system
186 - ffv1: support version 1.3
191 - XWD encoder and decoder
192 - Support for fragmentation in the mov/mp4 muxer
193 - ISMV (Smooth Streaming) muxer
194 - CDXL demuxer and decoder
195 - Apple ProRes encoder
196 - Sun Rasterfile Encoder
198 - ID3v2 attached pictures reading and writing
199 - WMA Lossless decoder
201 - RealAudio Lossless decoder
203 - drop support for avconv without libavfilter
204 - add libavresample audio conversion library
205 - audio filters support in libavfilter and avconv
209 - avprobe output is now standard INI or JSON. The old format can still
210 be used with -of old.
211 - Indeo Audio decoder
212 - channelsplit audio filter
213 - RTMPT protocol support
214 - iLBC encoding/decoding via libilbc
215 - Microsoft Screen 1 decoder
217 - audio channel mapping filter
218 - Microsoft ATC Screen decoder
220 - TechSmith Screen Codec 2 decoder
221 - AAC encoding via libfdk-aac
222 - Microsoft Expression Encoder Screen decoder
223 - RTMPS protocol support
224 - RTMPTS protocol support
225 - JPEG 2000 encoding support through OpenJPEG
226 - G.723.1 demuxer and decoder
227 - RTMPE protocol support
228 - RTMPTE protocol support
229 - Canopus Lossless Codec decoder
230 - avconv -shortest option is now per-output file,
231 -pass and -passlogfile are now per-output stream
233 - Microsoft Screen 2 decoder
234 - RTP depacketization of JPEG
235 - Smooth Streaming live segmenter muxer
236 - RTP packetization of JPEG
237 - Opus decoder and encoder using libopus
238 - remove -same_quant, it hasn't worked for years
239 - support for building with MSVC
250 - Automatic thread count based on detection number of (available) CPU cores
251 - Deprecate libpostproc. If desired, the switch --enable-postproc will
252 enable it but it may be removed in a later Libav release.
253 - rv34: frame-level multi-threading
254 - optimized iMDCT transform on x86 using SSE for for mpegaudiodec
260 - Flash Screen Video 2 decoder
261 - ffplay/ffprobe/ffserver renamed to avplay/avprobe/avserver
262 - ffmpeg deprecated, added avconv, which is almost the same for now, except
263 for a few incompatible changes in the options, which will hopefully make them
264 easier to use. The changes are:
265 * The options placement is now strictly enforced! While in theory the
266 options for ffmpeg should be given in [input options] -i INPUT [output
267 options] OUTPUT order, in practice it was possible to give output options
268 before the -i and it mostly worked. Except when it didn't - the behavior was
269 a bit inconsistent. In avconv, it is not possible to mix input and output
270 options. All non-global options are reset after an input or output filename.
271 * All per-file options are now truly per-file - they apply only to the next
272 input or output file and specifying different values for different files
273 will now work properly (notably -ss and -t options).
274 * All per-stream options are now truly per-stream - it is possible to
275 specify which stream(s) should a given option apply to. See the Stream
276 specifiers section in the avconv manual for details.
277 * In ffmpeg some options (like -newvideo/-newaudio/...) are irregular in the
278 sense that they're specified after the output filename instead of before,
279 like all other options. In avconv this irregularity is removed, all options
280 apply to the next input or output file.
281 * -newvideo/-newaudio/-newsubtitle options were removed. Not only were they
282 irregular and highly confusing, they were also redundant. In avconv the -map
283 option will create new streams in the output file and map input streams to
284 them. E.g. avconv -i INPUT -map 0 OUTPUT will create an output stream for
285 each stream in the first input file.
286 * The -map option now has slightly different and more powerful syntax:
287 + Colons (':') are used to separate file index/stream type/stream index
288 instead of dots. Comma (',') is used to separate the sync stream instead
289 of colon.. This is done for consistency with other options.
290 + It's possible to specify stream type. E.g. -map 0:a:2 creates an
291 output stream from the third input audio stream.
292 + Omitting the stream index now maps all the streams of the given type,
293 not just the first. E.g. -map 0:s creates output streams for all the
294 subtitle streams in the first input file.
295 + Since -map can now match multiple streams, negative mappings were
296 introduced. Negative mappings disable some streams from an already
297 defined map. E.g. '-map 0 -map -0:a:1' means 'create output streams for
298 all the stream in the first input file, except for the second audio
300 * There is a new option -c (or -codec) for choosing the decoder/encoder to
301 use, which allows to precisely specify target stream(s) consistently with
302 other options. E.g. -c:v lib264 sets the codec for all video streams, -c:a:0
303 libvorbis sets the codec for the first audio stream and -c copy copies all
304 the streams without reencoding. Old -vcodec/-acodec/-scodec options are now
306 * It is now possible to precisely specify which stream should an AVOption
307 apply to. E.g. -b:v:0 2M sets the bitrate for the first video stream, while
308 -b:a 128k sets the bitrate for all audio streams. Note that the old -ab 128k
309 syntax is deprecated and will stop working soon.
310 * -map_chapters now takes only an input file index and applies to the next
311 output file. This is consistent with how all the other options work.
312 * -map_metadata now takes only an input metadata specifier and applies to
313 the next output file. Output metadata specifier is now part of the option
314 name, similarly to the AVOptions/map/codec feature above.
315 * -metadata can now be used to set metadata on streams and chapters, e.g.
316 -metadata:s:1 language=eng sets the language of the first stream to 'eng'.
317 This made -vlang/-alang/-slang options redundant, so they were removed.
318 * -qscale option now uses stream specifiers and applies to all streams, not
319 just video. I.e. plain -qscale number would now apply to all streams. To get
320 the old behavior, use -qscale:v. Also there is now a shortcut -q for -qscale
321 and -aq is now an alias for -q:a.
322 * -vbsf/-absf/-sbsf options were removed and replaced by a -bsf option which
323 uses stream specifiers. Use -bsf:v/a/s instead of the old options.
324 * -itsscale option now uses stream specifiers, so its argument is only the
326 * -intra option was removed, use -g 0 for the same effect.
327 * -psnr option was removed, use -flags +psnr for the same effect.
328 * -vf option is now an alias to the new -filter option, which uses stream specifiers.
329 * -vframes/-aframes/-dframes options are now aliases to the new -frames option.
330 * -vtag/-atag/-stag options are now aliases to the new -tag option.
332 - Windows Media Image decoder
336 - libcdio-paranoia input device for audio CD grabbing
338 - Apple ProRes decoder
339 - CELT in Ogg demuxing
340 - VC-1 interlaced decoding
341 - lut, lutrgb, and lutyuv filters
344 - Speex encoding via libspeex
345 - 4:2:2 H.264 decoding support
346 - 4:2:2 and 4:4:4 H.264 encoding with libx264
347 - Pulseaudio input device
348 - replacement Indeo 3 decoder
349 - TLS/SSL and HTTPS protocol support
350 - AVOptions API rewritten and documented
351 - most of CODEC_FLAG2_*, some CODEC_FLAG_* and many codec-specific fields in
352 AVCodecContext deprecated. Codec private options should be used instead.
353 - Properly working defaults in libx264 wrapper, support for native presets.
354 - Encrypted OMA files support
355 - Discworld II BMV decoding support
357 - OS X Video Decoder Acceleration (VDA) support
358 - CRI ADX audio format muxer and demuxer
359 - Playstation Portable PMP format demuxer
360 - PCM format support in OMA demuxer
362 - Dxtory capture format decoder
363 - v410 QuickTime uncompressed 4:4:4 10-bit encoder and decoder
365 - Simple segmenting muxer
372 - E-AC-3 audio encoder
373 - ac3enc: add channel coupling support
374 - floating-point sample format support for (E-)AC-3, DCA, AAC, Vorbis decoders
375 - H.264/MPEG frame-level multithreading
376 - av_metadata_* functions renamed to av_dict_* and moved to libavutil
377 - 4:4:4 H.264 decoding support
378 - 10-bit H.264 optimizations for x86
379 - bump libswscale for recently reported ABI break
384 - VP8 frame-level multithreading
385 - NEON optimizations for VP8
386 - removed a lot of deprecated API cruft
387 - FFT and IMDCT optimizations for AVX (Sandy Bridge) processors
389 - SMPTE 302M AES3 audio decoder
390 - ffmpeg no longer quits after the 'q' key is pressed; use 'ctrl+c' instead
391 - 9 bits and 10 bits per sample support in the H.264 decoder
396 - WebM support in Matroska de/muxer
397 - low overhead Ogg muxing
399 - VP8 de/encoding via libvpx
400 - Demuxer for On2's IVF format
401 - Pictor/PC Paint decoder
403 - libfaad2 wrapper removed
404 - DTS-ES extension (XCh) decoding support
406 - RTSP tunneling over HTTP
407 - RTP depacketization of SVQ3
408 - -strict inofficial replaced by -strict unofficial
409 - ffplay -exitonkeydown and -exitonmousedown options added
410 - native GSM / GSM MS decoder
411 - RTP depacketization of QDM2
412 - ANSI/ASCII art playback system
413 - Lego Mindstorms RSO de/muxer
414 - SubRip subtitle file muxer and demuxer
415 - Chinese AVS encoding via libxavs
416 - ffprobe -show_packets option added
417 - RTP packetization of Theora and Vorbis
418 - RTP depacketization of MP4A-LATM
419 - RTP packetization and depacketization of VP8
421 - Apple HTTP Live Streaming demuxer
424 - G.722 ADPCM audio encoder/decoder
427 - frei0r wrapper filter
428 - change crop filter syntax to width:height:x:y
429 - make the crop filter accept parametric expressions
430 - make ffprobe accept AVFormatContext options
433 - Demuxer for Leitch/Harris' VR native stream format (LXF)
434 - RTP depacketization of the X-QT QuickTime format
435 - SAP (Session Announcement Protocol, RFC 2974) muxer and demuxer
437 - ffmpeg -crop* options removed
438 - transpose filter added
439 - ffmpeg -force_key_frames option added
440 - demuxer for receiving raw rtp:// URLs without an SDP description
441 - single stream LATM/LOAS decoder
442 - setpts filter added
443 - Win64 support for optimized x86 assembly functions
444 - MJPEG/AVI1 to JPEG/JFIF bitstream filter
445 - ASS subtitle encoder and decoder
446 - IEC 61937 encapsulation for E-AC-3, TrueHD, DTS-HD (for HDMI passthrough)
447 - overlay filter added
448 - rename aspect filter to setdar, and pixelaspect to setsar
450 - Mobotix .mxg demuxer
451 - frei0r source added
452 - hqdn3d filter added
453 - RTP depacketization of QCELP
455 - gradfun filter added
457 - replace the ocv_smooth filter with a more generic ocv filter
458 - Windows Televison (WTV) demuxer
459 - FFmpeg metadata format muxer and demuxer
460 - SubRip (srt) subtitle decoder
461 - floating-point AC-3 encoder added
463 - ffmpeg -copytb option added
465 - Wing Commander IV movies decoder added
467 - Bink version 'b' audio and video decoder
468 - Bitmap Brothers JV playback system
469 - Apple HTTP Live Streaming protocol handler
470 - sndio support for playback and record
471 - Linux framebuffer input device added
472 - Chronomaster DFA decoder
473 - Mobotix MxPEG decoder
474 - AAC encoding via libvo-aacenc
475 - AMR-WB encoding via libvo-amrwbenc
477 - fieldorder video filter added
482 - PB-frame decoding for H.263
483 - deprecated vhook subsystem removed
484 - deprecated old scaler removed
486 - Alpha channel scaler
488 - RTP packetization of H.263
489 - RTP packetization of AMR
490 - RTP depacketization of Vorbis
491 - CorePNG decoding support
492 - Cook multichannel decoding support
493 - introduced avlanguage helpers in libavformat
494 - 8088flex TMV demuxer and decoder
495 - per-stream language-tags extraction in asfdec
496 - V210 decoder and encoder
497 - remaining GPL parts in AC-3 decoder converted to LGPL
499 - SoX native format muxer and demuxer
500 - AMR-NB decoding/encoding, AMR-WB decoding via OpenCORE libraries
502 - Electronic Arts Madcow decoder
503 - DivX (XSUB) subtitle encoder
504 - nonfree libamr support for AMR-NB/WB decoding/encoding removed
505 - experimental AAC encoder
506 - RTP depacketization of ASF and RTSP from WMS servers
507 - RTMP support in libavformat
508 - noX handling for OPT_BOOL X options
510 - IEC-61937 compatible Muxer
512 - Bluray (PGS) subtitle decoder
513 - LPCM support in MPEG-TS (HDMV RID as found on Blu-ray disks)
515 - Core Audio Format demuxer
517 - MD STUDIO audio demuxer
518 - RF64 support in WAV demuxer
519 - MPEG-4 Audio Lossless Coding (ALS) decoder
520 - -formats option split into -formats, -codecs, -bsfs, and -protocols
522 - CDG demuxer and decoder
524 - Auravision Aura 1 and 2 decoders
525 - Deluxe Paint Animation playback system
527 - Adobe Filmstrip muxer and demuxer
528 - RTP depacketization of H.263
529 - Bink demuxer and audio/video decoders
530 - enable symbol versioning by default for linkers that support it
531 - IFF PBM/ILBM bitmap decoder
534 - RTP depacketization of AMR
540 - Kega Game Video (KGV1) decoder
541 - VorbisComment writing for FLAC, Ogg FLAC and Ogg Speex files
542 - RTP depacketization of Theora
543 - HTTP Digest authentication
544 - RTMP/RTMPT/RTMPS/RTMPE/RTMPTE protocol support via librtmp
545 - Psygnosis YOP demuxer and video decoder
546 - spectral extension support in the E-AC-3 decoder
547 - unsharp video filter
548 - RTP hinting in the mov/3gp/mp4 muxer
549 - Dirac in Ogg demuxing
550 - seek to keyframes in Ogg
551 - 4:2:2 and 4:4:4 Theora decoding
552 - 35% faster VP3/Theora decoding
553 - faster AAC decoding
554 - faster H.264 decoding
555 - RealAudio 1.0 (14.4K) encoder
560 - DV50 AKA DVCPRO50 encoder, decoder, muxer and demuxer
561 - TechSmith Camtasia (TSCC) video decoder
562 - IBM Ultimotion (ULTI) video decoder
563 - Sierra Online audio file demuxer and decoder
564 - Apple QuickDraw (qdrw) video decoder
565 - Creative ADPCM audio decoder (16 bits as well as 8 bits schemes)
566 - Electronic Arts Multimedia (WVE/UV2/etc.) file demuxer
567 - Miro VideoXL (VIXL) video decoder
568 - H.261 video encoder
570 - Nullsoft Video (NSV) file demuxer
571 - Shorten audio decoder
573 - Apple Lossless Audio Codec (ALAC) decoder
574 - Winnov WNV1 video decoder
575 - Autodesk Animator Studio Codec (AASC) decoder
576 - Indeo 2 video decoder
577 - Fraps FPS1 video decoder
578 - Snow video encoder/decoder
579 - Sonic audio encoder/decoder
580 - Vorbis audio decoder
581 - Macromedia ADPCM decoder
582 - Duck TrueMotion 2 video decoder
583 - support for decoding FLX and DTA extensions in FLIC files
584 - H.264 custom quantization matrices support
585 - ffserver fixed, it should now be usable again
587 - Real Cooker audio decoder
588 - TrueSpeech audio decoder
589 - WMA2 audio decoder fixed, now all files should play correctly
590 - RealAudio 14.4 and 28.8 decoders fixed
592 - build system improvements
593 - tabs and trailing whitespace removed from the codebase
594 - CamStudio video decoder
595 - AIFF/AIFF-C audio format, encoding and decoding
596 - ADTS AAC file reading and writing
597 - Creative VOC file reading and writing
598 - American Laser Games multimedia (*.mm) playback system
599 - Zip Motion Blocks Video decoder
600 - improved Theora/VP3 decoder
601 - True Audio (TTA) decoder
602 - AVS demuxer and video decoder
604 - Smacker demuxer and decoder
605 - NuppelVideo/MythTV demuxer and RTjpeg decoder
607 - MPEG-2 intra VLC support
608 - MPEG-2 4:2:2 encoder
609 - Flash Screen Video decoder
611 - Chinese AVS decoder
614 - VC-1/WMV3/WMV9 video decoder
617 - VMware video decoder
620 - WavPack lossless audio decoder
621 - Targa (.TGA) picture decoder
622 - Vorbis audio encoder
623 - Delphine Software .cin demuxer/audio and video decoder
624 - Tiertex .seq demuxer/video decoder
626 - TIFF picture encoder and decoder
627 - GIF picture decoder
628 - Intel Music Coder decoder
629 - Zip Motion Blocks Video encoder
631 - Flash Screen Video encoder
632 - Theora encoding via libtheora
635 - GSM-MS encoder and decoder
637 - DXA demuxer and decoder
639 - Gamecube movie (.THP) playback system
640 - Blackfin optimizations
641 - Interplay C93 demuxer and video decoder
642 - Bethsoft VID demuxer and video decoder
645 - V.Flash PTX decoder
646 - RoQ muxer, RoQ audio encoder
647 - Renderware TXD demuxer and decoder
648 - extern C declarations for C++ removed from headers
649 - sws_flags command line option
653 - OS/2 support removed and restored again
656 - additional SPARC (VIS) optimizations
658 - slice-based parallel H.264 decoding
659 - Monkey's Audio demuxer and decoder
660 - AMV audio and video decoder
662 - H.264 PAFF decoding
663 - Nellymoser ASAO decoder
664 - Beam Software SIFF demuxer and decoder
665 - libvorbis Vorbis decoding removed in favor of native decoder
666 - IntraX8 (J-Frame) subdecoder for WMV2 and VC-1
667 - Ogg (Theora, Vorbis and FLAC) muxer
668 - The "device" muxers and demuxers are now in a new libavdevice library
669 - PC Paintbrush PCX decoder
670 - Sun Rasterfile decoder
671 - TechnoTrend PVA demuxer
672 - Linux Media Labs MPEG-4 (LMLM4) demuxer
673 - AVM2 (Flash 9) SWF muxer
674 - QT variant of IMA ADPCM encoder
676 - iPod/iPhone compatible mp4 muxer
678 - MSN TCP Webcam stream demuxer
679 - RL2 demuxer / decoder
682 - non-recursive Makefiles
684 - MAXIS EA XA (.xa) demuxer / decoder
688 - Electronic Arts CMV decoder
689 - Motion Pixels Video decoder
690 - Motion Pixels MVI demuxer
691 - removed animated GIF decoder/demuxer
692 - D-Cinema audio muxer
693 - Electronic Arts TGV decoder
694 - Apple Lossless Audio Codec (ALAC) encoder
696 - floating point PCM encoder/decoder
698 - DV100 AKA DVCPRO HD decoder and demuxer
699 - E-AC-3 support added to AC-3 decoder
700 - Nellymoser ASAO encoder
701 - ASS and SSA demuxer and muxer
702 - liba52 wrapper removed
703 - SVQ3 watermark decoding support
704 - Speex decoding via libspeex
705 - Electronic Arts TGQ decoder
707 - QCELP / PureVoice decoder
709 - hybrid WavPack support
710 - R3D REDCODE demuxer
711 - ALSA support for playback and record
712 - Electronic Arts TQI decoder
713 - OpenJPEG based JPEG 2000 decoder
714 - NC (NC4600) camera file demuxer
715 - Gopher client support
717 - generic metadata API
722 - DV encoder, DV muxer
723 - Microsoft RLE video decoder
724 - Microsoft Video-1 decoder
725 - Apple Animation (RLE) decoder
726 - Apple Graphics (SMC) decoder
727 - Apple Video (RPZA) decoder
729 - Sega FILM (CPK) file demuxer
730 - Westwood multimedia support (VQA & AUD files)
731 - Id Quake II CIN playback support
733 - FLIC playback support
734 - RealVideo 2.0 (RV20) decoder
735 - Duck TrueMotion v1 (DUCK) video decoder
736 - Sierra VMD demuxer and video decoder
737 - MSZH and ZLIB decoder support
741 - rate distortion optimal cbp support
742 - rate distorted optimal ac prediction for MPEG-4
743 - rate distorted optimal lambda->qp support
744 - AAC encoding with libfaac
745 - Sunplus JPEG codec (SP5X) support
746 - use Lagrange multiplier instead of QP for ratecontrol
747 - Theora/VP3 decoding support
748 - XA and ADX ADPCM codecs
749 - export MPEG-2 active display area / pan scan
750 - Add support for configuring with IBM XLC
751 - floating point AAN DCT
752 - initial support for zygo video (not complete)
754 - new audio/video parser API
756 - av_read_frame() and av_seek_frame() support
757 - missing last frame fixes
758 - seek by mouse in ffplay
759 - noise reduction of DCT coefficients
760 - H.263 OBMC & 4MV support
761 - H.263 alternative inter vlc support
763 - H.263 slice structured mode
764 - interlaced DCT support for MPEG-2 encoding
765 - stuffing to stay above min_bitrate
766 - MB type & QP visualization
767 - frame stepping for ffplay
768 - interlaced motion estimation
769 - alternate scantable support
770 - SVCD scan offset support
773 - quantizer noise shaping
774 - G.726 ADPCM audio codec
776 - multithreaded/SMP motion estimation
777 - multithreaded/SMP encoding for MPEG-1/MPEG-2/MPEG-4/H.263
778 - multithreaded/SMP decoding for MPEG-2
780 - Metrowerks CodeWarrior suppport
781 - H.263+ custom pcf support
782 - nicer output for 'ffmpeg -formats'
784 - SGI image format, encoding and decoding
785 - H.264 loop filter support
786 - H.264 CABAC support
787 - nicer looking arrows for the motion vector visualization
788 - improved VCD support
789 - audio timestamp drift compensation
790 - MPEG-2 YUV 422/444 support
791 - polyphase kaiser windowed sinc and blackman nuttall windowed sinc audio resample
792 - better image scaling
794 - correctly interleave packets during encoding
795 - VIS optimized motion compensation
796 - intra_dc_precision>0 encoding support
797 - support reuse of motion vectors/MB types/field select values of the source video
798 - more accurate deblock filter
800 - many optimizations and bugfixes
801 - FunCom ISS audio file demuxer and according ADPCM decoding
806 - MPEG-2 video encoding (Michael)
807 - Id RoQ playback subsystem (Mike Melanson and Tim Ferguson)
808 - Wing Commander III Movie (.mve) file playback subsystem (Mike Melanson
810 - Xan DPCM audio decoder (Mario Brito)
811 - Interplay MVE playback subsystem (Mike Melanson)
812 - Duck DK3 and DK4 ADPCM audio decoders (Mike Melanson)
817 - RealAudio 1.0 (14_4) and 2.0 (28_8) native decoders. Author unknown, code from mplayerhq
818 (originally from public domain player for Amiga at http://www.honeypot.net/audio)
819 - current version now also compiles with older GCC (Fabrice)
820 - 4X multimedia playback system including 4xm file demuxer (Mike
821 Melanson), and 4X video and audio codecs (Michael)
822 - Creative YUV (CYUV) decoder (Mike Melanson)
823 - FFV1 codec (our very simple lossless intra only codec, compresses much better
824 than HuffYUV) (Michael)
825 - ASV1 (Asus), H.264, Intel indeo3 codecs have been added (various)
826 - tiny PNG encoder and decoder, tiny GIF decoder, PAM decoder (PPM with
827 alpha support), JPEG YUV colorspace support. (Fabrice Bellard)
828 - ffplay has been replaced with a newer version which uses SDL (optionally)
829 for multiplatform support (Fabrice)
830 - Sorenson Version 3 codec (SVQ3) support has been added (decoding only) - donated
832 - AMR format has been added (Johannes Carlsson)
833 - 3GP support has been added (Johannes Carlsson)
834 - VP3 codec has been added (Mike Melanson)
835 - more MPEG-1/2 fixes
836 - better multiplatform support, MS Visual Studio fixes (various)
837 - AltiVec optimizations (Magnus Damn and others)
838 - SH4 processor support has been added (BERO)
839 - new public interfaces (avcodec_get_pix_fmt) (Roman Shaposhnick)
840 - VOB streaming support (Brian Foley)
841 - better MP3 autodetection (Andriy Rysin)
842 - qpel encoding (Michael)
843 - 4mv+b frames encoding finally fixed (Michael)
844 - chroma ME (Michael)
845 - 5 comparison functions for ME (Michael)
846 - B-frame encoding speedup (Michael)
847 - WMV2 codec (unfinished - Michael)
848 - user specified diamond size for EPZS (Michael)
849 - Playstation STR playback subsystem, still experimental (Mike and Michael)
850 - ASV2 codec (Michael)
851 - CLJR decoder (Alex)
853 .. And lots more new enhancements and fixes.
858 - completely new integer only MPEG audio layer 1/2/3 decoder rewritten
860 - Recoded DCT and motion vector search with gcc (no longer depends on nasm)
861 - fix quantization bug in AC3 encoder
862 - added PCM codecs and format. Corrected WAV/AVI/ASF PCM issues
863 - added prototype ffplay program
864 - added GOB header parsing on H.263/H.263+ decoder (Juanjo)
865 - bug fix on MCBPC tables of H.263 (Juanjo)
866 - bug fix on DC coefficients of H.263 (Juanjo)
867 - added Advanced Prediction Mode on H.263/H.263+ decoder (Juanjo)
868 - now we can decode H.263 streams found in QuickTime files (Juanjo)
869 - now we can decode H.263 streams found in VIVO v1 files(Juanjo)
870 - preliminary RTP "friendly" mode for H.263/H.263+ coding. (Juanjo)
871 - added GOB header for H.263/H.263+ coding on RTP mode (Juanjo)
872 - now H.263 picture size is returned on the first decoded frame (Juanjo)
873 - added first regression tests
874 - added MPEG-2 TS demuxer
875 - new demux API for libav
876 - more accurate and faster IDCT (Michael)
877 - faster and entropy-controlled motion search (Michael)
878 - two pass video encoding (Michael)
879 - new video rate control (Michael)
880 - added MSMPEG4V1, MSMPEGV2 and WMV1 support (Michael)
881 - great performance improvement of video encoders and decoders (Michael)
882 - new and faster bit readers and vlc parsers (Michael)
883 - high quality encoding mode: tries all macroblock/VLC types (Michael)
884 - added DV video decoder
885 - preliminary RTP/RTSP support in ffserver and libavformat
886 - H.263+ AIC decoding/encoding support (Juanjo)
887 - VCD MPEG-PS mode (Juanjo)
888 - PSNR stuff (Juanjo)
889 - simple stats output (Juanjo)
890 - 16-bit and 15-bit RGB/BGR/GBR support (Bisqwit)
895 - some header fixes (Zdenek Kabelac <kabi at informatics.muni.cz>)
896 - many MMX optimizations (Nick Kurshev <nickols_k at mail.ru>)
897 - added configure system (actually a small shell script)
898 - added MPEG audio layer 1/2/3 decoding using LGPL'ed mpglib by
899 Michael Hipp (temporary solution - waiting for integer only
901 - fixed VIDIOCSYNC interrupt
902 - added Intel H.263 decoding support ('I263' AVI fourCC)
903 - added Real Video 1.0 decoding (needs further testing)
904 - simplified image formats again. Added PGM format (=grey
905 pgm). Renamed old PGM to PGMYUV.
906 - fixed msmpeg4 slice issues (tell me if you still find problems)
907 - fixed OpenDivX bugs with newer versions (added VOL header decoding)
908 - added support for MPlayer interface
909 - added macroblock skip optimization
910 - added MJPEG decoder
911 - added mmx/mmxext IDCT from libmpeg2
912 - added pgmyuvpipe, ppm, and ppm_pipe formats (original patch by Celer
913 <celer at shell.scrypt.net>)
914 - added pixel format conversion layer (e.g. for MJPEG or PPM)
915 - added deinterlacing option
917 - MPEG-4 vol header fixes (Jonathan Marsden <snmjbm at pacbell.net>)
918 - ARM optimizations (Lionel Ulmer <lionel.ulmer at free.fr>).
919 - Windows porting of file converter
920 - added MJPEG raw format (input/ouput)
921 - added JPEG image format support (input/output)
926 - fixed some std header definitions (Bjorn Lindgren
927 <bjorn.e.lindgren at telia.com>).
928 - added MPEG demuxer (MPEG-1 and 2 compatible).
930 - added prototype RM demuxer
931 - added AC3 decoding (done with libac3 by Aaron Holtzman)
932 - added decoding codec parameter guessing (.e.g. for MPEG, because the
933 header does not include them)
934 - fixed header generation in MPEG-1, AVI and ASF muxer: wmplayer can now
935 play them (only tested video)
936 - fixed H.263 white bug
937 - fixed phase rounding in img resample filter
938 - add MMX code for polyphase img resample filter
939 - added CPU autodetection
940 - added generic title/author/copyright/comment string handling (ASF and RM
942 - added SWF demux to extract MP3 track (not usable yet because no MP3
944 - added fractional frame rate support
945 - codecs are no longer searched by read_header() (should fix ffserver
951 - BGR24 patch (initial patch by Jeroen Vreeken <pe1rxq at amsat.org>)
952 - fixed raw yuv output
953 - added motion rounding support in MPEG-4
954 - fixed motion bug rounding in MSMPEG4
955 - added B-frame handling in video core
956 - added full MPEG-1 decoding support
957 - added partial (frame only) MPEG-2 support
958 - changed the FOURCC code for H.263 to "U263" to be able to see the
959 +AVI/H.263 file with the UB Video H.263+ decoder. MPlayer works with
960 this +codec ;) (JuanJo).
961 - Halfpel motion estimation after MB type selection (JuanJo)
962 - added pgm and .Y.U.V output format
963 - suppressed 'img:' protocol. Simply use: /tmp/test%d.[pgm|Y] as input or
965 - added pgmpipe I/O format (original patch from Martin Aumueller
966 <lists at reserv.at>, but changed completely since we use a format
967 instead of a protocol)
972 - added H.263/MPEG-4/MSMPEG4 decoding support. MPEG-4 decoding support
973 (for OpenDivX) is almost complete: 8x8 MVs and rounding are
974 missing. MSMPEG4 support is complete.
975 - added prototype MPEG-1 decoder. Only I- and P-frames handled yet (it
976 can decode ffmpeg MPEGs :-)).
977 - added libavcodec API documentation (see apiexample.c).
978 - fixed image polyphase bug (the bottom of some images could be
980 - added support for non clipped motion vectors (decoding only)
981 and image sizes non-multiple of 16
982 - added support for AC prediction (decoding only)
983 - added file overwrite confirmation (can be disabled with -y)
984 - added custom size picture to H.263 using H.263+ (Juanjo)
989 - added MSMPEG4 (aka DivX) compatible encoder. Changed default codec
990 of AVI and ASF to DIV3.
991 - added -me option to set motion estimation method
992 (default=log). suppressed redundant -hq option.
993 - added options -acodec and -vcodec to force a given codec (useful for
996 - improved dct_quantize speed
997 - factorized some motion estimation code
1002 - removing grab code from ffserver and moved it to ffmpeg. Added
1003 multistream support to ffmpeg.
1004 - added timeshifting support for live feeds (option ?date=xxx in the
1006 - added high quality image resize code with polyphase filter (need
1007 mmx/see optimization). Enable multiple image size support in ffserver.
1008 - added multi live feed support in ffserver
1009 - suppressed master feature from ffserver (it should be done with an
1010 external program which opens the .ffm url and writes it to another
1012 - added preliminary support for video stream parsing (WAV and AVI half
1013 done). Added proper support for audio/video file conversion in
1015 - added preliminary support for video file sending from ffserver
1016 - redesigning I/O subsystem: now using URL based input and output
1018 - added WAV format support
1019 - added "tty user interface" to ffmpeg to stop grabbing gracefully
1020 - added MMX/SSE optimizations to SAD (Sums of Absolutes Differences)
1021 (Juan J. Sierralta P. a.k.a. "Juanjo" <juanjo at atmlab.utfsm.cl>)
1022 - added MMX DCT from mpeg2_movie 1.5 (Juanjo)
1023 - added new motion estimation algorithms, log and phods (Juanjo)
1024 - changed directories: libav for format handling, libavcodec for
1030 - added stereo in MPEG audio encoder
1035 - added 'high quality' mode which use motion vectors. It can be used in
1036 real time at low resolution.
1037 - fixed rounding problems which caused quality problems at high
1038 bitrates and large GOP size
1041 version 0.3.2: small fixes
1047 version 0.3.1: added avi/divx support
1050 - added MPEG-4 codec compatible with OpenDivX. It is based on the H.263 codec
1051 - added sound for flash format (not tested)
1054 version 0.3: initial public release