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)
46 - Screenpresso SPV1 decoding
47 - zero-copy Intel QSV transcoding in avconv
48 - libkvazaar HEVC encoder
49 - innoHeim/Rsupport Screen Capture Codec decoder
50 - support encoding 16-bit RLE SGI images
51 - support Apple AVFoundation video capture
52 - G.723.1 muxer and encoder
54 - VAAPI-accelerated format conversion and scaling
55 - libnpp/CUDA-accelerated format conversion and scaling
56 - VAAPI-accelerate H.264 encoding
61 - shuffleplanes filter
62 - replaygain data export
63 - Alias PIX image encoder and decoder
64 - BRender PIX image decoder
65 - Amazing Studio PAF playback support
67 - BMP standalone parser
68 - OpenEXR image decoder
69 - support encoding and decoding 4-channel SGI images
70 - support decoding 16-bit RLE SGI images
72 - LucasArts SMUSH SANM video decoder
73 - LucasArts SMUSH VIMA audio decoder (ADPCM)
74 - LucasArts SMUSH demuxer
75 - MP2 encoding via TwoLAME
77 - Silicon Graphics RLE 8-bit video decoder
78 - Silicon Graphics Motion Video Compressor 1 & 2 decoder
79 - Silicon Graphics Movie demuxer
80 - On2 AVC (Audio for Video) decoder
81 - support for decoding through DXVA2 in avconv
82 - libbs2b-based stereo-to-binaural audio filter
84 - display matrix export and rotation API
85 - drop avserver, it was unmaintained for years and largely broken
87 - request Icecast metadata by default
88 - support for using metadata in stream specifiers in avtools
94 - support ID3v2 tags in ASF files
95 - reference-counting for AVFrame and AVPacket data
96 - avconv now fails when input options are used for output file
98 - avconv options -filter_script and -filter_complex_script, which allow a
99 filtergraph description to be read from a file
100 - uniform options syntax across all filters
103 - asetpts filter (same as setpts, but for audio)
104 - trim and atrim filters
105 - avconv -t and -ss (output-only) options are now sample-accurate when
107 - Matroska muxer can now put the index at the beginning of the file.
108 - avconv -deinterlace option removed, the yadif filter should be used instead
109 - Apple Intermediate Codec decoder
110 - Escape 130 video decoder
111 - support for slice multithreading in libavfilter
112 - VC-1 interlaced B-frame support
113 - support for WavPack muxing (raw and in Matroska)
115 - WavPack encoding through libwavpack
116 - Added the -n parameter to avconv
118 - when transcoding with avconv (i.e. not streamcopying), -ss is now accurate
119 even when used as an input option. Previous behavior can be restored with
120 the -noaccurate_seek option.
121 - avconv -t option can now be used for inputs, to limit the duration of
122 data read from an input file
123 - Voxware MetaSound decoder
125 - Error Resilient AAC syntax (ER AAC LC) decoding
126 - Low Delay AAC (ER AAC LD) decoding
127 - mux chapters in ASF files
128 - Opus in Ogg demuxing
129 - Enhanced Low Delay AAC (ER AAC ELD) decoding (no LD SBR support)
131 - HNM version 4 demuxer and video decoder
133 - raw HEVC, HEVC in MOV/MP4, HEVC in Matroska, HEVC in MPEG-TS demuxing
134 - remove avplay -vismv option, which has not worked for a long time
136 - setsar/setdar filters now support variables in ratio expressions
137 - dar variable in the scale filter now returns the actual DAR (i.e. a * sar)
139 - support for decoding through VDPAU in avconv (the -hwaccel option)
140 - remove mp3_header_(de)compress bitstream filters
141 - stereoscopic 3d metadata handling
142 - png standalone parser
143 - WebP encoding via libwebp
146 - Mirillis FIC video decoder
148 - compand audio filter
152 - av_basename and av_dirname
153 - adobe and limelight publisher authentication in RTMP
154 - VDPAU hardware acceleration through normal hwaccel
159 - ashowinfo audio filter
160 - 24-bit FLAC encoding
161 - audio volume filter
162 - deprecated the avconv -vol option. the volume filter is to be used instead.
163 - multi-channel ALAC encoding up to 7.1
164 - TAK demuxer, parser, and decoder
165 - adaptive frame-level multithreading for H.264
169 - metadata (INFO tag) support in WAV muxer
170 - support for building DLLs using MSVC
171 - remove avserver daemon mode
172 - support building on the Plan 9 operating system
173 - ffv1: support version 1.3
178 - XWD encoder and decoder
179 - Support for fragmentation in the mov/mp4 muxer
180 - ISMV (Smooth Streaming) muxer
181 - CDXL demuxer and decoder
182 - Apple ProRes encoder
183 - Sun Rasterfile Encoder
185 - ID3v2 attached pictures reading and writing
186 - WMA Lossless decoder
188 - RealAudio Lossless decoder
190 - drop support for avconv without libavfilter
191 - add libavresample audio conversion library
192 - audio filters support in libavfilter and avconv
196 - avprobe output is now standard INI or JSON. The old format can still
197 be used with -of old.
198 - Indeo Audio decoder
199 - channelsplit audio filter
200 - RTMPT protocol support
201 - iLBC encoding/decoding via libilbc
202 - Microsoft Screen 1 decoder
204 - audio channel mapping filter
205 - Microsoft ATC Screen decoder
207 - TechSmith Screen Codec 2 decoder
208 - AAC encoding via libfdk-aac
209 - Microsoft Expression Encoder Screen decoder
210 - RTMPS protocol support
211 - RTMPTS protocol support
212 - JPEG 2000 encoding support through OpenJPEG
213 - G.723.1 demuxer and decoder
214 - RTMPE protocol support
215 - RTMPTE protocol support
216 - Canopus Lossless Codec decoder
217 - avconv -shortest option is now per-output file,
218 -pass and -passlogfile are now per-output stream
220 - Microsoft Screen 2 decoder
221 - RTP depacketization of JPEG
222 - Smooth Streaming live segmenter muxer
223 - RTP packetization of JPEG
224 - Opus decoder and encoder using libopus
225 - remove -same_quant, it hasn't worked for years
226 - support for building with MSVC
237 - Automatic thread count based on detection number of (available) CPU cores
238 - Deprecate libpostproc. If desired, the switch --enable-postproc will
239 enable it but it may be removed in a later Libav release.
240 - rv34: frame-level multi-threading
241 - optimized iMDCT transform on x86 using SSE for for mpegaudiodec
247 - Flash Screen Video 2 decoder
248 - ffplay/ffprobe/ffserver renamed to avplay/avprobe/avserver
249 - ffmpeg deprecated, added avconv, which is almost the same for now, except
250 for a few incompatible changes in the options, which will hopefully make them
251 easier to use. The changes are:
252 * The options placement is now strictly enforced! While in theory the
253 options for ffmpeg should be given in [input options] -i INPUT [output
254 options] OUTPUT order, in practice it was possible to give output options
255 before the -i and it mostly worked. Except when it didn't - the behavior was
256 a bit inconsistent. In avconv, it is not possible to mix input and output
257 options. All non-global options are reset after an input or output filename.
258 * All per-file options are now truly per-file - they apply only to the next
259 input or output file and specifying different values for different files
260 will now work properly (notably -ss and -t options).
261 * All per-stream options are now truly per-stream - it is possible to
262 specify which stream(s) should a given option apply to. See the Stream
263 specifiers section in the avconv manual for details.
264 * In ffmpeg some options (like -newvideo/-newaudio/...) are irregular in the
265 sense that they're specified after the output filename instead of before,
266 like all other options. In avconv this irregularity is removed, all options
267 apply to the next input or output file.
268 * -newvideo/-newaudio/-newsubtitle options were removed. Not only were they
269 irregular and highly confusing, they were also redundant. In avconv the -map
270 option will create new streams in the output file and map input streams to
271 them. E.g. avconv -i INPUT -map 0 OUTPUT will create an output stream for
272 each stream in the first input file.
273 * The -map option now has slightly different and more powerful syntax:
274 + Colons (':') are used to separate file index/stream type/stream index
275 instead of dots. Comma (',') is used to separate the sync stream instead
276 of colon.. This is done for consistency with other options.
277 + It's possible to specify stream type. E.g. -map 0:a:2 creates an
278 output stream from the third input audio stream.
279 + Omitting the stream index now maps all the streams of the given type,
280 not just the first. E.g. -map 0:s creates output streams for all the
281 subtitle streams in the first input file.
282 + Since -map can now match multiple streams, negative mappings were
283 introduced. Negative mappings disable some streams from an already
284 defined map. E.g. '-map 0 -map -0:a:1' means 'create output streams for
285 all the stream in the first input file, except for the second audio
287 * There is a new option -c (or -codec) for choosing the decoder/encoder to
288 use, which allows to precisely specify target stream(s) consistently with
289 other options. E.g. -c:v lib264 sets the codec for all video streams, -c:a:0
290 libvorbis sets the codec for the first audio stream and -c copy copies all
291 the streams without reencoding. Old -vcodec/-acodec/-scodec options are now
293 * It is now possible to precisely specify which stream should an AVOption
294 apply to. E.g. -b:v:0 2M sets the bitrate for the first video stream, while
295 -b:a 128k sets the bitrate for all audio streams. Note that the old -ab 128k
296 syntax is deprecated and will stop working soon.
297 * -map_chapters now takes only an input file index and applies to the next
298 output file. This is consistent with how all the other options work.
299 * -map_metadata now takes only an input metadata specifier and applies to
300 the next output file. Output metadata specifier is now part of the option
301 name, similarly to the AVOptions/map/codec feature above.
302 * -metadata can now be used to set metadata on streams and chapters, e.g.
303 -metadata:s:1 language=eng sets the language of the first stream to 'eng'.
304 This made -vlang/-alang/-slang options redundant, so they were removed.
305 * -qscale option now uses stream specifiers and applies to all streams, not
306 just video. I.e. plain -qscale number would now apply to all streams. To get
307 the old behavior, use -qscale:v. Also there is now a shortcut -q for -qscale
308 and -aq is now an alias for -q:a.
309 * -vbsf/-absf/-sbsf options were removed and replaced by a -bsf option which
310 uses stream specifiers. Use -bsf:v/a/s instead of the old options.
311 * -itsscale option now uses stream specifiers, so its argument is only the
313 * -intra option was removed, use -g 0 for the same effect.
314 * -psnr option was removed, use -flags +psnr for the same effect.
315 * -vf option is now an alias to the new -filter option, which uses stream specifiers.
316 * -vframes/-aframes/-dframes options are now aliases to the new -frames option.
317 * -vtag/-atag/-stag options are now aliases to the new -tag option.
319 - Windows Media Image decoder
323 - libcdio-paranoia input device for audio CD grabbing
325 - Apple ProRes decoder
326 - CELT in Ogg demuxing
327 - VC-1 interlaced decoding
328 - lut, lutrgb, and lutyuv filters
331 - Speex encoding via libspeex
332 - 4:2:2 H.264 decoding support
333 - 4:2:2 and 4:4:4 H.264 encoding with libx264
334 - Pulseaudio input device
335 - replacement Indeo 3 decoder
336 - TLS/SSL and HTTPS protocol support
337 - AVOptions API rewritten and documented
338 - most of CODEC_FLAG2_*, some CODEC_FLAG_* and many codec-specific fields in
339 AVCodecContext deprecated. Codec private options should be used instead.
340 - Properly working defaults in libx264 wrapper, support for native presets.
341 - Encrypted OMA files support
342 - Discworld II BMV decoding support
344 - OS X Video Decoder Acceleration (VDA) support
345 - CRI ADX audio format muxer and demuxer
346 - Playstation Portable PMP format demuxer
347 - PCM format support in OMA demuxer
349 - Dxtory capture format decoder
350 - v410 QuickTime uncompressed 4:4:4 10-bit encoder and decoder
352 - Simple segmenting muxer
359 - E-AC-3 audio encoder
360 - ac3enc: add channel coupling support
361 - floating-point sample format support for (E-)AC-3, DCA, AAC, Vorbis decoders
362 - H.264/MPEG frame-level multithreading
363 - av_metadata_* functions renamed to av_dict_* and moved to libavutil
364 - 4:4:4 H.264 decoding support
365 - 10-bit H.264 optimizations for x86
366 - bump libswscale for recently reported ABI break
371 - VP8 frame-level multithreading
372 - NEON optimizations for VP8
373 - removed a lot of deprecated API cruft
374 - FFT and IMDCT optimizations for AVX (Sandy Bridge) processors
376 - SMPTE 302M AES3 audio decoder
377 - ffmpeg no longer quits after the 'q' key is pressed; use 'ctrl+c' instead
378 - 9bit and 10bit per sample support in the H.264 decoder
383 - WebM support in Matroska de/muxer
384 - low overhead Ogg muxing
386 - VP8 de/encoding via libvpx
387 - Demuxer for On2's IVF format
388 - Pictor/PC Paint decoder
390 - libfaad2 wrapper removed
391 - DTS-ES extension (XCh) decoding support
393 - RTSP tunneling over HTTP
394 - RTP depacketization of SVQ3
395 - -strict inofficial replaced by -strict unofficial
396 - ffplay -exitonkeydown and -exitonmousedown options added
397 - native GSM / GSM MS decoder
398 - RTP depacketization of QDM2
399 - ANSI/ASCII art playback system
400 - Lego Mindstorms RSO de/muxer
401 - SubRip subtitle file muxer and demuxer
402 - Chinese AVS encoding via libxavs
403 - ffprobe -show_packets option added
404 - RTP packetization of Theora and Vorbis
405 - RTP depacketization of MP4A-LATM
406 - RTP packetization and depacketization of VP8
408 - Apple HTTP Live Streaming demuxer
411 - G.722 ADPCM audio encoder/decoder
414 - frei0r wrapper filter
415 - change crop filter syntax to width:height:x:y
416 - make the crop filter accept parametric expressions
417 - make ffprobe accept AVFormatContext options
420 - Demuxer for Leitch/Harris' VR native stream format (LXF)
421 - RTP depacketization of the X-QT QuickTime format
422 - SAP (Session Announcement Protocol, RFC 2974) muxer and demuxer
424 - ffmpeg -crop* options removed
425 - transpose filter added
426 - ffmpeg -force_key_frames option added
427 - demuxer for receiving raw rtp:// URLs without an SDP description
428 - single stream LATM/LOAS decoder
429 - setpts filter added
430 - Win64 support for optimized x86 assembly functions
431 - MJPEG/AVI1 to JPEG/JFIF bitstream filter
432 - ASS subtitle encoder and decoder
433 - IEC 61937 encapsulation for E-AC-3, TrueHD, DTS-HD (for HDMI passthrough)
434 - overlay filter added
435 - rename aspect filter to setdar, and pixelaspect to setsar
437 - Mobotix .mxg demuxer
438 - frei0r source added
439 - hqdn3d filter added
440 - RTP depacketization of QCELP
442 - gradfun filter added
444 - replace the ocv_smooth filter with a more generic ocv filter
445 - Windows Televison (WTV) demuxer
446 - FFmpeg metadata format muxer and demuxer
447 - SubRip (srt) subtitle decoder
448 - floating-point AC-3 encoder added
450 - ffmpeg -copytb option added
452 - Wing Commander IV movies decoder added
454 - Bink version 'b' audio and video decoder
455 - Bitmap Brothers JV playback system
456 - Apple HTTP Live Streaming protocol handler
457 - sndio support for playback and record
458 - Linux framebuffer input device added
459 - Chronomaster DFA decoder
460 - Mobotix MxPEG decoder
461 - AAC encoding via libvo-aacenc
462 - AMR-WB encoding via libvo-amrwbenc
464 - fieldorder video filter added
469 - PB-frame decoding for H.263
470 - deprecated vhook subsystem removed
471 - deprecated old scaler removed
473 - Alpha channel scaler
475 - RTP packetization of H.263
476 - RTP packetization of AMR
477 - RTP depacketization of Vorbis
478 - CorePNG decoding support
479 - Cook multichannel decoding support
480 - introduced avlanguage helpers in libavformat
481 - 8088flex TMV demuxer and decoder
482 - per-stream language-tags extraction in asfdec
483 - V210 decoder and encoder
484 - remaining GPL parts in AC-3 decoder converted to LGPL
486 - SoX native format muxer and demuxer
487 - AMR-NB decoding/encoding, AMR-WB decoding via OpenCORE libraries
489 - Electronic Arts Madcow decoder
490 - DivX (XSUB) subtitle encoder
491 - nonfree libamr support for AMR-NB/WB decoding/encoding removed
492 - experimental AAC encoder
493 - RTP depacketization of ASF and RTSP from WMS servers
494 - RTMP support in libavformat
495 - noX handling for OPT_BOOL X options
497 - IEC-61937 compatible Muxer
499 - Bluray (PGS) subtitle decoder
500 - LPCM support in MPEG-TS (HDMV RID as found on Blu-ray disks)
502 - Core Audio Format demuxer
504 - MD STUDIO audio demuxer
505 - RF64 support in WAV demuxer
506 - MPEG-4 Audio Lossless Coding (ALS) decoder
507 - -formats option split into -formats, -codecs, -bsfs, and -protocols
509 - CDG demuxer and decoder
511 - Auravision Aura 1 and 2 decoders
512 - Deluxe Paint Animation playback system
514 - Adobe Filmstrip muxer and demuxer
515 - RTP depacketization of H.263
516 - Bink demuxer and audio/video decoders
517 - enable symbol versioning by default for linkers that support it
518 - IFF PBM/ILBM bitmap decoder
521 - RTP depacketization of AMR
527 - Kega Game Video (KGV1) decoder
528 - VorbisComment writing for FLAC, Ogg FLAC and Ogg Speex files
529 - RTP depacketization of Theora
530 - HTTP Digest authentication
531 - RTMP/RTMPT/RTMPS/RTMPE/RTMPTE protocol support via librtmp
532 - Psygnosis YOP demuxer and video decoder
533 - spectral extension support in the E-AC-3 decoder
534 - unsharp video filter
535 - RTP hinting in the mov/3gp/mp4 muxer
536 - Dirac in Ogg demuxing
537 - seek to keyframes in Ogg
538 - 4:2:2 and 4:4:4 Theora decoding
539 - 35% faster VP3/Theora decoding
540 - faster AAC decoding
541 - faster H.264 decoding
542 - RealAudio 1.0 (14.4K) encoder
547 - DV50 AKA DVCPRO50 encoder, decoder, muxer and demuxer
548 - TechSmith Camtasia (TSCC) video decoder
549 - IBM Ultimotion (ULTI) video decoder
550 - Sierra Online audio file demuxer and decoder
551 - Apple QuickDraw (qdrw) video decoder
552 - Creative ADPCM audio decoder (16 bits as well as 8 bits schemes)
553 - Electronic Arts Multimedia (WVE/UV2/etc.) file demuxer
554 - Miro VideoXL (VIXL) video decoder
555 - H.261 video encoder
557 - Nullsoft Video (NSV) file demuxer
558 - Shorten audio decoder
560 - Apple Lossless Audio Codec (ALAC) decoder
561 - Winnov WNV1 video decoder
562 - Autodesk Animator Studio Codec (AASC) decoder
563 - Indeo 2 video decoder
564 - Fraps FPS1 video decoder
565 - Snow video encoder/decoder
566 - Sonic audio encoder/decoder
567 - Vorbis audio decoder
568 - Macromedia ADPCM decoder
569 - Duck TrueMotion 2 video decoder
570 - support for decoding FLX and DTA extensions in FLIC files
571 - H.264 custom quantization matrices support
572 - ffserver fixed, it should now be usable again
574 - Real Cooker audio decoder
575 - TrueSpeech audio decoder
576 - WMA2 audio decoder fixed, now all files should play correctly
577 - RealAudio 14.4 and 28.8 decoders fixed
579 - build system improvements
580 - tabs and trailing whitespace removed from the codebase
581 - CamStudio video decoder
582 - AIFF/AIFF-C audio format, encoding and decoding
583 - ADTS AAC file reading and writing
584 - Creative VOC file reading and writing
585 - American Laser Games multimedia (*.mm) playback system
586 - Zip Motion Blocks Video decoder
587 - improved Theora/VP3 decoder
588 - True Audio (TTA) decoder
589 - AVS demuxer and video decoder
591 - Smacker demuxer and decoder
592 - NuppelVideo/MythTV demuxer and RTjpeg decoder
594 - MPEG-2 intra VLC support
595 - MPEG-2 4:2:2 encoder
596 - Flash Screen Video decoder
598 - Chinese AVS decoder
601 - VC-1/WMV3/WMV9 video decoder
604 - VMware video decoder
607 - WavPack lossless audio decoder
608 - Targa (.TGA) picture decoder
609 - Vorbis audio encoder
610 - Delphine Software .cin demuxer/audio and video decoder
611 - Tiertex .seq demuxer/video decoder
613 - TIFF picture encoder and decoder
614 - GIF picture decoder
615 - Intel Music Coder decoder
616 - Zip Motion Blocks Video encoder
618 - Flash Screen Video encoder
619 - Theora encoding via libtheora
622 - GSM-MS encoder and decoder
624 - DXA demuxer and decoder
626 - Gamecube movie (.THP) playback system
627 - Blackfin optimizations
628 - Interplay C93 demuxer and video decoder
629 - Bethsoft VID demuxer and video decoder
632 - V.Flash PTX decoder
633 - RoQ muxer, RoQ audio encoder
634 - Renderware TXD demuxer and decoder
635 - extern C declarations for C++ removed from headers
636 - sws_flags command line option
640 - OS/2 support removed and restored again
643 - additional SPARC (VIS) optimizations
645 - slice-based parallel H.264 decoding
646 - Monkey's Audio demuxer and decoder
647 - AMV audio and video decoder
649 - H.264 PAFF decoding
650 - Nellymoser ASAO decoder
651 - Beam Software SIFF demuxer and decoder
652 - libvorbis Vorbis decoding removed in favor of native decoder
653 - IntraX8 (J-Frame) subdecoder for WMV2 and VC-1
654 - Ogg (Theora, Vorbis and FLAC) muxer
655 - The "device" muxers and demuxers are now in a new libavdevice library
656 - PC Paintbrush PCX decoder
657 - Sun Rasterfile decoder
658 - TechnoTrend PVA demuxer
659 - Linux Media Labs MPEG-4 (LMLM4) demuxer
660 - AVM2 (Flash 9) SWF muxer
661 - QT variant of IMA ADPCM encoder
663 - iPod/iPhone compatible mp4 muxer
665 - MSN TCP Webcam stream demuxer
666 - RL2 demuxer / decoder
669 - non-recursive Makefiles
671 - MAXIS EA XA (.xa) demuxer / decoder
675 - Electronic Arts CMV decoder
676 - Motion Pixels Video decoder
677 - Motion Pixels MVI demuxer
678 - removed animated GIF decoder/demuxer
679 - D-Cinema audio muxer
680 - Electronic Arts TGV decoder
681 - Apple Lossless Audio Codec (ALAC) encoder
683 - floating point PCM encoder/decoder
685 - DV100 AKA DVCPRO HD decoder and demuxer
686 - E-AC-3 support added to AC-3 decoder
687 - Nellymoser ASAO encoder
688 - ASS and SSA demuxer and muxer
689 - liba52 wrapper removed
690 - SVQ3 watermark decoding support
691 - Speex decoding via libspeex
692 - Electronic Arts TGQ decoder
694 - QCELP / PureVoice decoder
696 - hybrid WavPack support
697 - R3D REDCODE demuxer
698 - ALSA support for playback and record
699 - Electronic Arts TQI decoder
700 - OpenJPEG based JPEG 2000 decoder
701 - NC (NC4600) camera file demuxer
702 - Gopher client support
704 - generic metadata API
709 - DV encoder, DV muxer
710 - Microsoft RLE video decoder
711 - Microsoft Video-1 decoder
712 - Apple Animation (RLE) decoder
713 - Apple Graphics (SMC) decoder
714 - Apple Video (RPZA) decoder
716 - Sega FILM (CPK) file demuxer
717 - Westwood multimedia support (VQA & AUD files)
718 - Id Quake II CIN playback support
720 - FLIC playback support
721 - RealVideo 2.0 (RV20) decoder
722 - Duck TrueMotion v1 (DUCK) video decoder
723 - Sierra VMD demuxer and video decoder
724 - MSZH and ZLIB decoder support
728 - rate distortion optimal cbp support
729 - rate distorted optimal ac prediction for MPEG-4
730 - rate distorted optimal lambda->qp support
731 - AAC encoding with libfaac
732 - Sunplus JPEG codec (SP5X) support
733 - use Lagrange multipler instead of QP for ratecontrol
734 - Theora/VP3 decoding support
735 - XA and ADX ADPCM codecs
736 - export MPEG-2 active display area / pan scan
737 - Add support for configuring with IBM XLC
738 - floating point AAN DCT
739 - initial support for zygo video (not complete)
741 - new audio/video parser API
743 - av_read_frame() and av_seek_frame() support
744 - missing last frame fixes
745 - seek by mouse in ffplay
746 - noise reduction of DCT coefficients
747 - H.263 OBMC & 4MV support
748 - H.263 alternative inter vlc support
750 - H.263 slice structured mode
751 - interlaced DCT support for MPEG-2 encoding
752 - stuffing to stay above min_bitrate
753 - MB type & QP visualization
754 - frame stepping for ffplay
755 - interlaced motion estimation
756 - alternate scantable support
757 - SVCD scan offset support
760 - quantizer noise shaping
761 - G.726 ADPCM audio codec
763 - multithreaded/SMP motion estimation
764 - multithreaded/SMP encoding for MPEG-1/MPEG-2/MPEG-4/H.263
765 - multithreaded/SMP decoding for MPEG-2
767 - Metrowerks CodeWarrior suppport
768 - H.263+ custom pcf support
769 - nicer output for 'ffmpeg -formats'
771 - SGI image format, encoding and decoding
772 - H.264 loop filter support
773 - H.264 CABAC support
774 - nicer looking arrows for the motion vector visualization
775 - improved VCD support
776 - audio timestamp drift compensation
777 - MPEG-2 YUV 422/444 support
778 - polyphase kaiser windowed sinc and blackman nuttall windowed sinc audio resample
779 - better image scaling
781 - correctly interleave packets during encoding
782 - VIS optimized motion compensation
783 - intra_dc_precision>0 encoding support
784 - support reuse of motion vectors/MB types/field select values of the source video
785 - more accurate deblock filter
787 - many optimizations and bugfixes
788 - FunCom ISS audio file demuxer and according ADPCM decoding
793 - MPEG-2 video encoding (Michael)
794 - Id RoQ playback subsystem (Mike Melanson and Tim Ferguson)
795 - Wing Commander III Movie (.mve) file playback subsystem (Mike Melanson
797 - Xan DPCM audio decoder (Mario Brito)
798 - Interplay MVE playback subsystem (Mike Melanson)
799 - Duck DK3 and DK4 ADPCM audio decoders (Mike Melanson)
804 - RealAudio 1.0 (14_4) and 2.0 (28_8) native decoders. Author unknown, code from mplayerhq
805 (originally from public domain player for Amiga at http://www.honeypot.net/audio)
806 - current version now also compiles with older GCC (Fabrice)
807 - 4X multimedia playback system including 4xm file demuxer (Mike
808 Melanson), and 4X video and audio codecs (Michael)
809 - Creative YUV (CYUV) decoder (Mike Melanson)
810 - FFV1 codec (our very simple lossless intra only codec, compresses much better
811 than HuffYUV) (Michael)
812 - ASV1 (Asus), H.264, Intel indeo3 codecs have been added (various)
813 - tiny PNG encoder and decoder, tiny GIF decoder, PAM decoder (PPM with
814 alpha support), JPEG YUV colorspace support. (Fabrice Bellard)
815 - ffplay has been replaced with a newer version which uses SDL (optionally)
816 for multiplatform support (Fabrice)
817 - Sorenson Version 3 codec (SVQ3) support has been added (decoding only) - donated
819 - AMR format has been added (Johannes Carlsson)
820 - 3GP support has been added (Johannes Carlsson)
821 - VP3 codec has been added (Mike Melanson)
822 - more MPEG-1/2 fixes
823 - better multiplatform support, MS Visual Studio fixes (various)
824 - AltiVec optimizations (Magnus Damn and others)
825 - SH4 processor support has been added (BERO)
826 - new public interfaces (avcodec_get_pix_fmt) (Roman Shaposhnick)
827 - VOB streaming support (Brian Foley)
828 - better MP3 autodetection (Andriy Rysin)
829 - qpel encoding (Michael)
830 - 4mv+b frames encoding finally fixed (Michael)
831 - chroma ME (Michael)
832 - 5 comparison functions for ME (Michael)
833 - B-frame encoding speedup (Michael)
834 - WMV2 codec (unfinished - Michael)
835 - user specified diamond size for EPZS (Michael)
836 - Playstation STR playback subsystem, still experimental (Mike and Michael)
837 - ASV2 codec (Michael)
838 - CLJR decoder (Alex)
840 .. And lots more new enhancements and fixes.
845 - completely new integer only MPEG audio layer 1/2/3 decoder rewritten
847 - Recoded DCT and motion vector search with gcc (no longer depends on nasm)
848 - fix quantization bug in AC3 encoder
849 - added PCM codecs and format. Corrected WAV/AVI/ASF PCM issues
850 - added prototype ffplay program
851 - added GOB header parsing on H.263/H.263+ decoder (Juanjo)
852 - bug fix on MCBPC tables of H.263 (Juanjo)
853 - bug fix on DC coefficients of H.263 (Juanjo)
854 - added Advanced Prediction Mode on H.263/H.263+ decoder (Juanjo)
855 - now we can decode H.263 streams found in QuickTime files (Juanjo)
856 - now we can decode H.263 streams found in VIVO v1 files(Juanjo)
857 - preliminary RTP "friendly" mode for H.263/H.263+ coding. (Juanjo)
858 - added GOB header for H.263/H.263+ coding on RTP mode (Juanjo)
859 - now H.263 picture size is returned on the first decoded frame (Juanjo)
860 - added first regression tests
861 - added MPEG-2 TS demuxer
862 - new demux API for libav
863 - more accurate and faster IDCT (Michael)
864 - faster and entropy-controlled motion search (Michael)
865 - two pass video encoding (Michael)
866 - new video rate control (Michael)
867 - added MSMPEG4V1, MSMPEGV2 and WMV1 support (Michael)
868 - great performance improvement of video encoders and decoders (Michael)
869 - new and faster bit readers and vlc parsers (Michael)
870 - high quality encoding mode: tries all macroblock/VLC types (Michael)
871 - added DV video decoder
872 - preliminary RTP/RTSP support in ffserver and libavformat
873 - H.263+ AIC decoding/encoding support (Juanjo)
874 - VCD MPEG-PS mode (Juanjo)
875 - PSNR stuff (Juanjo)
876 - simple stats output (Juanjo)
877 - 16-bit and 15-bit RGB/BGR/GBR support (Bisqwit)
882 - some header fixes (Zdenek Kabelac <kabi at informatics.muni.cz>)
883 - many MMX optimizations (Nick Kurshev <nickols_k at mail.ru>)
884 - added configure system (actually a small shell script)
885 - added MPEG audio layer 1/2/3 decoding using LGPL'ed mpglib by
886 Michael Hipp (temporary solution - waiting for integer only
888 - fixed VIDIOCSYNC interrupt
889 - added Intel H.263 decoding support ('I263' AVI fourCC)
890 - added Real Video 1.0 decoding (needs further testing)
891 - simplified image formats again. Added PGM format (=grey
892 pgm). Renamed old PGM to PGMYUV.
893 - fixed msmpeg4 slice issues (tell me if you still find problems)
894 - fixed OpenDivX bugs with newer versions (added VOL header decoding)
895 - added support for MPlayer interface
896 - added macroblock skip optimization
897 - added MJPEG decoder
898 - added mmx/mmxext IDCT from libmpeg2
899 - added pgmyuvpipe, ppm, and ppm_pipe formats (original patch by Celer
900 <celer at shell.scrypt.net>)
901 - added pixel format conversion layer (e.g. for MJPEG or PPM)
902 - added deinterlacing option
904 - MPEG-4 vol header fixes (Jonathan Marsden <snmjbm at pacbell.net>)
905 - ARM optimizations (Lionel Ulmer <lionel.ulmer at free.fr>).
906 - Windows porting of file converter
907 - added MJPEG raw format (input/ouput)
908 - added JPEG image format support (input/output)
913 - fixed some std header definitions (Bjorn Lindgren
914 <bjorn.e.lindgren at telia.com>).
915 - added MPEG demuxer (MPEG-1 and 2 compatible).
917 - added prototype RM demuxer
918 - added AC3 decoding (done with libac3 by Aaron Holtzman)
919 - added decoding codec parameter guessing (.e.g. for MPEG, because the
920 header does not include them)
921 - fixed header generation in MPEG-1, AVI and ASF muxer: wmplayer can now
922 play them (only tested video)
923 - fixed H.263 white bug
924 - fixed phase rounding in img resample filter
925 - add MMX code for polyphase img resample filter
926 - added CPU autodetection
927 - added generic title/author/copyright/comment string handling (ASF and RM
929 - added SWF demux to extract MP3 track (not usable yet because no MP3
931 - added fractional frame rate support
932 - codecs are no longer searched by read_header() (should fix ffserver
938 - BGR24 patch (initial patch by Jeroen Vreeken <pe1rxq at amsat.org>)
939 - fixed raw yuv output
940 - added motion rounding support in MPEG-4
941 - fixed motion bug rounding in MSMPEG4
942 - added B-frame handling in video core
943 - added full MPEG-1 decoding support
944 - added partial (frame only) MPEG-2 support
945 - changed the FOURCC code for H.263 to "U263" to be able to see the
946 +AVI/H.263 file with the UB Video H.263+ decoder. MPlayer works with
947 this +codec ;) (JuanJo).
948 - Halfpel motion estimation after MB type selection (JuanJo)
949 - added pgm and .Y.U.V output format
950 - suppressed 'img:' protocol. Simply use: /tmp/test%d.[pgm|Y] as input or
952 - added pgmpipe I/O format (original patch from Martin Aumueller
953 <lists at reserv.at>, but changed completely since we use a format
954 instead of a protocol)
959 - added H.263/MPEG-4/MSMPEG4 decoding support. MPEG-4 decoding support
960 (for OpenDivX) is almost complete: 8x8 MVs and rounding are
961 missing. MSMPEG4 support is complete.
962 - added prototype MPEG-1 decoder. Only I- and P-frames handled yet (it
963 can decode ffmpeg MPEGs :-)).
964 - added libavcodec API documentation (see apiexample.c).
965 - fixed image polyphase bug (the bottom of some images could be
967 - added support for non clipped motion vectors (decoding only)
968 and image sizes non-multiple of 16
969 - added support for AC prediction (decoding only)
970 - added file overwrite confirmation (can be disabled with -y)
971 - added custom size picture to H.263 using H.263+ (Juanjo)
976 - added MSMPEG4 (aka DivX) compatible encoder. Changed default codec
977 of AVI and ASF to DIV3.
978 - added -me option to set motion estimation method
979 (default=log). suppressed redundant -hq option.
980 - added options -acodec and -vcodec to force a given codec (useful for
983 - improved dct_quantize speed
984 - factorized some motion estimation code
989 - removing grab code from ffserver and moved it to ffmpeg. Added
990 multistream support to ffmpeg.
991 - added timeshifting support for live feeds (option ?date=xxx in the
993 - added high quality image resize code with polyphase filter (need
994 mmx/see optimization). Enable multiple image size support in ffserver.
995 - added multi live feed support in ffserver
996 - suppressed master feature from ffserver (it should be done with an
997 external program which opens the .ffm url and writes it to another
999 - added preliminary support for video stream parsing (WAV and AVI half
1000 done). Added proper support for audio/video file conversion in
1002 - added preliminary support for video file sending from ffserver
1003 - redesigning I/O subsystem: now using URL based input and output
1005 - added WAV format support
1006 - added "tty user interface" to ffmpeg to stop grabbing gracefully
1007 - added MMX/SSE optimizations to SAD (Sums of Absolutes Differences)
1008 (Juan J. Sierralta P. a.k.a. "Juanjo" <juanjo at atmlab.utfsm.cl>)
1009 - added MMX DCT from mpeg2_movie 1.5 (Juanjo)
1010 - added new motion estimation algorithms, log and phods (Juanjo)
1011 - changed directories: libav for format handling, libavcodec for
1017 - added stereo in MPEG audio encoder
1022 - added 'high quality' mode which use motion vectors. It can be used in
1023 real time at low resolution.
1024 - fixed rounding problems which caused quality problems at high
1025 bitrates and large GOP size
1028 version 0.3.2: small fixes
1034 version 0.3.1: added avi/divx support
1037 - added MPEG-4 codec compatible with OpenDivX. It is based on the H.263 codec
1038 - added sound for flash format (not tested)
1041 version 0.3: initial public release