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 - DXVA2-accelerated HEVC decoding
16 - AAC ELD 480 decoding
17 - Intel QSV-accelerated H.264 decoding
18 - DSS SP decoder and DSS demuxer
19 - RTP depacketizer for AC3 payload format (RFC 4184)
20 - RTP depacketizer for loss tolerant payload format for MP3 audio (RFC 5219)
21 - RTP depacketizer for DV (RFC 6469)
23 - RTP depacketization of T.140 text (RFC 4103)
24 - VP9 RTP payload format (draft 0) experimental depacketizer
26 - DTS lossless extension (XLL) decoding (not lossless, disabled by default)
27 - Intel QSV-accelerated H.264 encoding
28 - MMAL-accelerated H.264 decoding
29 - DTS decoding through libdcadec
30 - Canopus HQ/HQA decoder
35 - shuffleplanes filter
36 - replaygain data export
37 - Alias PIX image encoder and decoder
38 - BRender PIX image decoder
39 - Amazing Studio PAF playback support
41 - BMP standalone parser
42 - OpenEXR image decoder
43 - support encoding and decoding 4-channel SGI images
44 - support decoding 16-bit RLE SGI images
46 - LucasArts SMUSH SANM video decoder
47 - LucasArts SMUSH VIMA audio decoder (ADPCM)
48 - LucasArts SMUSH demuxer
49 - MP2 encoding via TwoLAME
51 - Silicon Graphics RLE 8-bit video decoder
52 - Silicon Graphics Motion Video Compressor 1 & 2 decoder
53 - Silicon Graphics Movie demuxer
54 - On2 AVC (Audio for Video) decoder
55 - support for decoding through DXVA2 in avconv
56 - libbs2b-based stereo-to-binaural audio filter
58 - display matrix export and rotation API
59 - drop avserver, it was unmaintained for years and largely broken
61 - request Icecast metadata by default
62 - support for using metadata in stream specifiers in avtools
68 - support ID3v2 tags in ASF files
69 - reference-counting for AVFrame and AVPacket data
70 - avconv now fails when input options are used for output file
72 - avconv options -filter_script and -filter_complex_script, which allow a
73 filtergraph description to be read from a file
74 - uniform options syntax across all filters
77 - asetpts filter (same as setpts, but for audio)
78 - trim and atrim filters
79 - avconv -t and -ss (output-only) options are now sample-accurate when
81 - Matroska muxer can now put the index at the beginning of the file.
82 - avconv -deinterlace option removed, the yadif filter should be used instead
83 - Apple Intermediate Codec decoder
84 - Escape 130 video decoder
85 - support for slice multithreading in libavfilter
86 - VC-1 interlaced B-frame support
87 - support for WavPack muxing (raw and in Matroska)
89 - WavPack encoding through libwavpack
90 - Added the -n parameter to avconv
92 - when transcoding with avconv (i.e. not streamcopying), -ss is now accurate
93 even when used as an input option. Previous behavior can be restored with
94 the -noaccurate_seek option.
95 - avconv -t option can now be used for inputs, to limit the duration of
96 data read from an input file
97 - Voxware MetaSound decoder
99 - Error Resilient AAC syntax (ER AAC LC) decoding
100 - Low Delay AAC (ER AAC LD) decoding
101 - mux chapters in ASF files
102 - Opus in Ogg demuxing
103 - Enhanced Low Delay AAC (ER AAC ELD) decoding (no LD SBR support)
105 - HNM version 4 demuxer and video decoder
107 - raw HEVC, HEVC in MOV/MP4, HEVC in Matroska, HEVC in MPEG-TS demuxing
108 - remove avplay -vismv option, which has not worked for a long time
110 - setsar/setdar filters now support variables in ratio expressions
111 - dar variable in the scale filter now returns the actual DAR (i.e. a * sar)
113 - support for decoding through VDPAU in avconv (the -hwaccel option)
114 - remove mp3_header_(de)compress bitstream filters
115 - stereoscopic 3d metadata handling
116 - png standalone parser
117 - WebP encoding via libwebp
120 - Mirillis FIC video decoder
122 - compand audio filter
126 - av_basename and av_dirname
127 - adobe and limelight publisher authentication in RTMP
128 - VDPAU hardware acceleration through normal hwaccel
133 - ashowinfo audio filter
134 - 24-bit FLAC encoding
135 - audio volume filter
136 - deprecated the avconv -vol option. the volume filter is to be used instead.
137 - multi-channel ALAC encoding up to 7.1
138 - TAK demuxer, parser, and decoder
139 - adaptive frame-level multithreading for H.264
143 - metadata (INFO tag) support in WAV muxer
144 - support for building DLLs using MSVC
145 - remove avserver daemon mode
146 - support building on the Plan 9 operating system
147 - ffv1: support version 1.3
152 - XWD encoder and decoder
153 - Support for fragmentation in the mov/mp4 muxer
154 - ISMV (Smooth Streaming) muxer
155 - CDXL demuxer and decoder
156 - Apple ProRes encoder
157 - Sun Rasterfile Encoder
159 - ID3v2 attached pictures reading and writing
160 - WMA Lossless decoder
162 - RealAudio Lossless decoder
164 - drop support for avconv without libavfilter
165 - add libavresample audio conversion library
166 - audio filters support in libavfilter and avconv
170 - avprobe output is now standard INI or JSON. The old format can still
171 be used with -of old.
172 - Indeo Audio decoder
173 - channelsplit audio filter
174 - RTMPT protocol support
175 - iLBC encoding/decoding via libilbc
176 - Microsoft Screen 1 decoder
178 - audio channel mapping filter
179 - Microsoft ATC Screen decoder
181 - TechSmith Screen Codec 2 decoder
182 - AAC encoding via libfdk-aac
183 - Microsoft Expression Encoder Screen decoder
184 - RTMPS protocol support
185 - RTMPTS protocol support
186 - JPEG 2000 encoding support through OpenJPEG
187 - G.723.1 demuxer and decoder
188 - RTMPE protocol support
189 - RTMPTE protocol support
190 - Canopus Lossless Codec decoder
191 - avconv -shortest option is now per-output file,
192 -pass and -passlogfile are now per-output stream
194 - Microsoft Screen 2 decoder
195 - RTP depacketization of JPEG
196 - Smooth Streaming live segmenter muxer
197 - RTP packetization of JPEG
198 - Opus decoder and encoder using libopus
199 - remove -same_quant, it hasn't worked for years
200 - support for building with MSVC
211 - Automatic thread count based on detection number of (available) CPU cores
212 - Deprecate libpostproc. If desired, the switch --enable-postproc will
213 enable it but it may be removed in a later Libav release.
214 - rv34: frame-level multi-threading
215 - optimized iMDCT transform on x86 using SSE for for mpegaudiodec
221 - Flash Screen Video 2 decoder
222 - ffplay/ffprobe/ffserver renamed to avplay/avprobe/avserver
223 - ffmpeg deprecated, added avconv, which is almost the same for now, except
224 for a few incompatible changes in the options, which will hopefully make them
225 easier to use. The changes are:
226 * The options placement is now strictly enforced! While in theory the
227 options for ffmpeg should be given in [input options] -i INPUT [output
228 options] OUTPUT order, in practice it was possible to give output options
229 before the -i and it mostly worked. Except when it didn't - the behavior was
230 a bit inconsistent. In avconv, it is not possible to mix input and output
231 options. All non-global options are reset after an input or output filename.
232 * All per-file options are now truly per-file - they apply only to the next
233 input or output file and specifying different values for different files
234 will now work properly (notably -ss and -t options).
235 * All per-stream options are now truly per-stream - it is possible to
236 specify which stream(s) should a given option apply to. See the Stream
237 specifiers section in the avconv manual for details.
238 * In ffmpeg some options (like -newvideo/-newaudio/...) are irregular in the
239 sense that they're specified after the output filename instead of before,
240 like all other options. In avconv this irregularity is removed, all options
241 apply to the next input or output file.
242 * -newvideo/-newaudio/-newsubtitle options were removed. Not only were they
243 irregular and highly confusing, they were also redundant. In avconv the -map
244 option will create new streams in the output file and map input streams to
245 them. E.g. avconv -i INPUT -map 0 OUTPUT will create an output stream for
246 each stream in the first input file.
247 * The -map option now has slightly different and more powerful syntax:
248 + Colons (':') are used to separate file index/stream type/stream index
249 instead of dots. Comma (',') is used to separate the sync stream instead
250 of colon.. This is done for consistency with other options.
251 + It's possible to specify stream type. E.g. -map 0:a:2 creates an
252 output stream from the third input audio stream.
253 + Omitting the stream index now maps all the streams of the given type,
254 not just the first. E.g. -map 0:s creates output streams for all the
255 subtitle streams in the first input file.
256 + Since -map can now match multiple streams, negative mappings were
257 introduced. Negative mappings disable some streams from an already
258 defined map. E.g. '-map 0 -map -0:a:1' means 'create output streams for
259 all the stream in the first input file, except for the second audio
261 * There is a new option -c (or -codec) for choosing the decoder/encoder to
262 use, which allows to precisely specify target stream(s) consistently with
263 other options. E.g. -c:v lib264 sets the codec for all video streams, -c:a:0
264 libvorbis sets the codec for the first audio stream and -c copy copies all
265 the streams without reencoding. Old -vcodec/-acodec/-scodec options are now
267 * It is now possible to precisely specify which stream should an AVOption
268 apply to. E.g. -b:v:0 2M sets the bitrate for the first video stream, while
269 -b:a 128k sets the bitrate for all audio streams. Note that the old -ab 128k
270 syntax is deprecated and will stop working soon.
271 * -map_chapters now takes only an input file index and applies to the next
272 output file. This is consistent with how all the other options work.
273 * -map_metadata now takes only an input metadata specifier and applies to
274 the next output file. Output metadata specifier is now part of the option
275 name, similarly to the AVOptions/map/codec feature above.
276 * -metadata can now be used to set metadata on streams and chapters, e.g.
277 -metadata:s:1 language=eng sets the language of the first stream to 'eng'.
278 This made -vlang/-alang/-slang options redundant, so they were removed.
279 * -qscale option now uses stream specifiers and applies to all streams, not
280 just video. I.e. plain -qscale number would now apply to all streams. To get
281 the old behavior, use -qscale:v. Also there is now a shortcut -q for -qscale
282 and -aq is now an alias for -q:a.
283 * -vbsf/-absf/-sbsf options were removed and replaced by a -bsf option which
284 uses stream specifiers. Use -bsf:v/a/s instead of the old options.
285 * -itsscale option now uses stream specifiers, so its argument is only the
287 * -intra option was removed, use -g 0 for the same effect.
288 * -psnr option was removed, use -flags +psnr for the same effect.
289 * -vf option is now an alias to the new -filter option, which uses stream specifiers.
290 * -vframes/-aframes/-dframes options are now aliases to the new -frames option.
291 * -vtag/-atag/-stag options are now aliases to the new -tag option.
293 - Windows Media Image decoder
297 - libcdio-paranoia input device for audio CD grabbing
299 - Apple ProRes decoder
300 - CELT in Ogg demuxing
301 - VC-1 interlaced decoding
302 - lut, lutrgb, and lutyuv filters
305 - Speex encoding via libspeex
306 - 4:2:2 H.264 decoding support
307 - 4:2:2 and 4:4:4 H.264 encoding with libx264
308 - Pulseaudio input device
309 - replacement Indeo 3 decoder
310 - TLS/SSL and HTTPS protocol support
311 - AVOptions API rewritten and documented
312 - most of CODEC_FLAG2_*, some CODEC_FLAG_* and many codec-specific fields in
313 AVCodecContext deprecated. Codec private options should be used instead.
314 - Properly working defaults in libx264 wrapper, support for native presets.
315 - Encrypted OMA files support
316 - Discworld II BMV decoding support
318 - OS X Video Decoder Acceleration (VDA) support
319 - CRI ADX audio format muxer and demuxer
320 - Playstation Portable PMP format demuxer
321 - PCM format support in OMA demuxer
323 - Dxtory capture format decoder
324 - v410 QuickTime uncompressed 4:4:4 10-bit encoder and decoder
326 - Simple segmenting muxer
333 - E-AC-3 audio encoder
334 - ac3enc: add channel coupling support
335 - floating-point sample format support for (E-)AC-3, DCA, AAC, Vorbis decoders
336 - H.264/MPEG frame-level multithreading
337 - av_metadata_* functions renamed to av_dict_* and moved to libavutil
338 - 4:4:4 H.264 decoding support
339 - 10-bit H.264 optimizations for x86
340 - bump libswscale for recently reported ABI break
345 - VP8 frame-level multithreading
346 - NEON optimizations for VP8
347 - removed a lot of deprecated API cruft
348 - FFT and IMDCT optimizations for AVX (Sandy Bridge) processors
350 - SMPTE 302M AES3 audio decoder
351 - ffmpeg no longer quits after the 'q' key is pressed; use 'ctrl+c' instead
352 - 9bit and 10bit per sample support in the H.264 decoder
357 - WebM support in Matroska de/muxer
358 - low overhead Ogg muxing
360 - VP8 de/encoding via libvpx
361 - Demuxer for On2's IVF format
362 - Pictor/PC Paint decoder
364 - libfaad2 wrapper removed
365 - DTS-ES extension (XCh) decoding support
367 - RTSP tunneling over HTTP
368 - RTP depacketization of SVQ3
369 - -strict inofficial replaced by -strict unofficial
370 - ffplay -exitonkeydown and -exitonmousedown options added
371 - native GSM / GSM MS decoder
372 - RTP depacketization of QDM2
373 - ANSI/ASCII art playback system
374 - Lego Mindstorms RSO de/muxer
375 - SubRip subtitle file muxer and demuxer
376 - Chinese AVS encoding via libxavs
377 - ffprobe -show_packets option added
378 - RTP packetization of Theora and Vorbis
379 - RTP depacketization of MP4A-LATM
380 - RTP packetization and depacketization of VP8
382 - Apple HTTP Live Streaming demuxer
385 - G.722 ADPCM audio encoder/decoder
388 - frei0r wrapper filter
389 - change crop filter syntax to width:height:x:y
390 - make the crop filter accept parametric expressions
391 - make ffprobe accept AVFormatContext options
394 - Demuxer for Leitch/Harris' VR native stream format (LXF)
395 - RTP depacketization of the X-QT QuickTime format
396 - SAP (Session Announcement Protocol, RFC 2974) muxer and demuxer
398 - ffmpeg -crop* options removed
399 - transpose filter added
400 - ffmpeg -force_key_frames option added
401 - demuxer for receiving raw rtp:// URLs without an SDP description
402 - single stream LATM/LOAS decoder
403 - setpts filter added
404 - Win64 support for optimized x86 assembly functions
405 - MJPEG/AVI1 to JPEG/JFIF bitstream filter
406 - ASS subtitle encoder and decoder
407 - IEC 61937 encapsulation for E-AC-3, TrueHD, DTS-HD (for HDMI passthrough)
408 - overlay filter added
409 - rename aspect filter to setdar, and pixelaspect to setsar
411 - Mobotix .mxg demuxer
412 - frei0r source added
413 - hqdn3d filter added
414 - RTP depacketization of QCELP
416 - gradfun filter added
418 - replace the ocv_smooth filter with a more generic ocv filter
419 - Windows Televison (WTV) demuxer
420 - FFmpeg metadata format muxer and demuxer
421 - SubRip (srt) subtitle decoder
422 - floating-point AC-3 encoder added
424 - ffmpeg -copytb option added
426 - Wing Commander IV movies decoder added
428 - Bink version 'b' audio and video decoder
429 - Bitmap Brothers JV playback system
430 - Apple HTTP Live Streaming protocol handler
431 - sndio support for playback and record
432 - Linux framebuffer input device added
433 - Chronomaster DFA decoder
434 - Mobotix MxPEG decoder
435 - AAC encoding via libvo-aacenc
436 - AMR-WB encoding via libvo-amrwbenc
438 - fieldorder video filter added
443 - PB-frame decoding for H.263
444 - deprecated vhook subsystem removed
445 - deprecated old scaler removed
447 - Alpha channel scaler
449 - RTP packetization of H.263
450 - RTP packetization of AMR
451 - RTP depacketization of Vorbis
452 - CorePNG decoding support
453 - Cook multichannel decoding support
454 - introduced avlanguage helpers in libavformat
455 - 8088flex TMV demuxer and decoder
456 - per-stream language-tags extraction in asfdec
457 - V210 decoder and encoder
458 - remaining GPL parts in AC-3 decoder converted to LGPL
460 - SoX native format muxer and demuxer
461 - AMR-NB decoding/encoding, AMR-WB decoding via OpenCORE libraries
463 - Electronic Arts Madcow decoder
464 - DivX (XSUB) subtitle encoder
465 - nonfree libamr support for AMR-NB/WB decoding/encoding removed
466 - experimental AAC encoder
467 - RTP depacketization of ASF and RTSP from WMS servers
468 - RTMP support in libavformat
469 - noX handling for OPT_BOOL X options
471 - IEC-61937 compatible Muxer
473 - Bluray (PGS) subtitle decoder
474 - LPCM support in MPEG-TS (HDMV RID as found on Blu-ray disks)
476 - Core Audio Format demuxer
478 - MD STUDIO audio demuxer
479 - RF64 support in WAV demuxer
480 - MPEG-4 Audio Lossless Coding (ALS) decoder
481 - -formats option split into -formats, -codecs, -bsfs, and -protocols
483 - CDG demuxer and decoder
485 - Auravision Aura 1 and 2 decoders
486 - Deluxe Paint Animation playback system
488 - Adobe Filmstrip muxer and demuxer
489 - RTP depacketization of H.263
490 - Bink demuxer and audio/video decoders
491 - enable symbol versioning by default for linkers that support it
492 - IFF PBM/ILBM bitmap decoder
495 - RTP depacketization of AMR
501 - Kega Game Video (KGV1) decoder
502 - VorbisComment writing for FLAC, Ogg FLAC and Ogg Speex files
503 - RTP depacketization of Theora
504 - HTTP Digest authentication
505 - RTMP/RTMPT/RTMPS/RTMPE/RTMPTE protocol support via librtmp
506 - Psygnosis YOP demuxer and video decoder
507 - spectral extension support in the E-AC-3 decoder
508 - unsharp video filter
509 - RTP hinting in the mov/3gp/mp4 muxer
510 - Dirac in Ogg demuxing
511 - seek to keyframes in Ogg
512 - 4:2:2 and 4:4:4 Theora decoding
513 - 35% faster VP3/Theora decoding
514 - faster AAC decoding
515 - faster H.264 decoding
516 - RealAudio 1.0 (14.4K) encoder
521 - DV50 AKA DVCPRO50 encoder, decoder, muxer and demuxer
522 - TechSmith Camtasia (TSCC) video decoder
523 - IBM Ultimotion (ULTI) video decoder
524 - Sierra Online audio file demuxer and decoder
525 - Apple QuickDraw (qdrw) video decoder
526 - Creative ADPCM audio decoder (16 bits as well as 8 bits schemes)
527 - Electronic Arts Multimedia (WVE/UV2/etc.) file demuxer
528 - Miro VideoXL (VIXL) video decoder
529 - H.261 video encoder
531 - Nullsoft Video (NSV) file demuxer
532 - Shorten audio decoder
534 - Apple Lossless Audio Codec (ALAC) decoder
535 - Winnov WNV1 video decoder
536 - Autodesk Animator Studio Codec (AASC) decoder
537 - Indeo 2 video decoder
538 - Fraps FPS1 video decoder
539 - Snow video encoder/decoder
540 - Sonic audio encoder/decoder
541 - Vorbis audio decoder
542 - Macromedia ADPCM decoder
543 - Duck TrueMotion 2 video decoder
544 - support for decoding FLX and DTA extensions in FLIC files
545 - H.264 custom quantization matrices support
546 - ffserver fixed, it should now be usable again
548 - Real Cooker audio decoder
549 - TrueSpeech audio decoder
550 - WMA2 audio decoder fixed, now all files should play correctly
551 - RealAudio 14.4 and 28.8 decoders fixed
553 - build system improvements
554 - tabs and trailing whitespace removed from the codebase
555 - CamStudio video decoder
556 - AIFF/AIFF-C audio format, encoding and decoding
557 - ADTS AAC file reading and writing
558 - Creative VOC file reading and writing
559 - American Laser Games multimedia (*.mm) playback system
560 - Zip Motion Blocks Video decoder
561 - improved Theora/VP3 decoder
562 - True Audio (TTA) decoder
563 - AVS demuxer and video decoder
565 - Smacker demuxer and decoder
566 - NuppelVideo/MythTV demuxer and RTjpeg decoder
568 - MPEG-2 intra VLC support
569 - MPEG-2 4:2:2 encoder
570 - Flash Screen Video decoder
572 - Chinese AVS decoder
575 - VC-1/WMV3/WMV9 video decoder
578 - VMware video decoder
581 - WavPack lossless audio decoder
582 - Targa (.TGA) picture decoder
583 - Vorbis audio encoder
584 - Delphine Software .cin demuxer/audio and video decoder
585 - Tiertex .seq demuxer/video decoder
587 - TIFF picture encoder and decoder
588 - GIF picture decoder
589 - Intel Music Coder decoder
590 - Zip Motion Blocks Video encoder
592 - Flash Screen Video encoder
593 - Theora encoding via libtheora
596 - GSM-MS encoder and decoder
598 - DXA demuxer and decoder
600 - Gamecube movie (.THP) playback system
601 - Blackfin optimizations
602 - Interplay C93 demuxer and video decoder
603 - Bethsoft VID demuxer and video decoder
606 - V.Flash PTX decoder
607 - RoQ muxer, RoQ audio encoder
608 - Renderware TXD demuxer and decoder
609 - extern C declarations for C++ removed from headers
610 - sws_flags command line option
614 - OS/2 support removed and restored again
617 - additional SPARC (VIS) optimizations
619 - slice-based parallel H.264 decoding
620 - Monkey's Audio demuxer and decoder
621 - AMV audio and video decoder
623 - H.264 PAFF decoding
624 - Nellymoser ASAO decoder
625 - Beam Software SIFF demuxer and decoder
626 - libvorbis Vorbis decoding removed in favor of native decoder
627 - IntraX8 (J-Frame) subdecoder for WMV2 and VC-1
628 - Ogg (Theora, Vorbis and FLAC) muxer
629 - The "device" muxers and demuxers are now in a new libavdevice library
630 - PC Paintbrush PCX decoder
631 - Sun Rasterfile decoder
632 - TechnoTrend PVA demuxer
633 - Linux Media Labs MPEG-4 (LMLM4) demuxer
634 - AVM2 (Flash 9) SWF muxer
635 - QT variant of IMA ADPCM encoder
637 - iPod/iPhone compatible mp4 muxer
639 - MSN TCP Webcam stream demuxer
640 - RL2 demuxer / decoder
643 - non-recursive Makefiles
645 - MAXIS EA XA (.xa) demuxer / decoder
649 - Electronic Arts CMV decoder
650 - Motion Pixels Video decoder
651 - Motion Pixels MVI demuxer
652 - removed animated GIF decoder/demuxer
653 - D-Cinema audio muxer
654 - Electronic Arts TGV decoder
655 - Apple Lossless Audio Codec (ALAC) encoder
657 - floating point PCM encoder/decoder
659 - DV100 AKA DVCPRO HD decoder and demuxer
660 - E-AC-3 support added to AC-3 decoder
661 - Nellymoser ASAO encoder
662 - ASS and SSA demuxer and muxer
663 - liba52 wrapper removed
664 - SVQ3 watermark decoding support
665 - Speex decoding via libspeex
666 - Electronic Arts TGQ decoder
668 - QCELP / PureVoice decoder
670 - hybrid WavPack support
671 - R3D REDCODE demuxer
672 - ALSA support for playback and record
673 - Electronic Arts TQI decoder
674 - OpenJPEG based JPEG 2000 decoder
675 - NC (NC4600) camera file demuxer
676 - Gopher client support
678 - generic metadata API
683 - DV encoder, DV muxer
684 - Microsoft RLE video decoder
685 - Microsoft Video-1 decoder
686 - Apple Animation (RLE) decoder
687 - Apple Graphics (SMC) decoder
688 - Apple Video (RPZA) decoder
690 - Sega FILM (CPK) file demuxer
691 - Westwood multimedia support (VQA & AUD files)
692 - Id Quake II CIN playback support
694 - FLIC playback support
695 - RealVideo 2.0 (RV20) decoder
696 - Duck TrueMotion v1 (DUCK) video decoder
697 - Sierra VMD demuxer and video decoder
698 - MSZH and ZLIB decoder support
702 - rate distortion optimal cbp support
703 - rate distorted optimal ac prediction for MPEG-4
704 - rate distorted optimal lambda->qp support
705 - AAC encoding with libfaac
706 - Sunplus JPEG codec (SP5X) support
707 - use Lagrange multipler instead of QP for ratecontrol
708 - Theora/VP3 decoding support
709 - XA and ADX ADPCM codecs
710 - export MPEG-2 active display area / pan scan
711 - Add support for configuring with IBM XLC
712 - floating point AAN DCT
713 - initial support for zygo video (not complete)
715 - new audio/video parser API
717 - av_read_frame() and av_seek_frame() support
718 - missing last frame fixes
719 - seek by mouse in ffplay
720 - noise reduction of DCT coefficients
721 - H.263 OBMC & 4MV support
722 - H.263 alternative inter vlc support
724 - H.263 slice structured mode
725 - interlaced DCT support for MPEG-2 encoding
726 - stuffing to stay above min_bitrate
727 - MB type & QP visualization
728 - frame stepping for ffplay
729 - interlaced motion estimation
730 - alternate scantable support
731 - SVCD scan offset support
734 - quantizer noise shaping
735 - G.726 ADPCM audio codec
737 - multithreaded/SMP motion estimation
738 - multithreaded/SMP encoding for MPEG-1/MPEG-2/MPEG-4/H.263
739 - multithreaded/SMP decoding for MPEG-2
741 - Metrowerks CodeWarrior suppport
742 - H.263+ custom pcf support
743 - nicer output for 'ffmpeg -formats'
745 - SGI image format, encoding and decoding
746 - H.264 loop filter support
747 - H.264 CABAC support
748 - nicer looking arrows for the motion vector visualization
749 - improved VCD support
750 - audio timestamp drift compensation
751 - MPEG-2 YUV 422/444 support
752 - polyphase kaiser windowed sinc and blackman nuttall windowed sinc audio resample
753 - better image scaling
755 - correctly interleave packets during encoding
756 - VIS optimized motion compensation
757 - intra_dc_precision>0 encoding support
758 - support reuse of motion vectors/MB types/field select values of the source video
759 - more accurate deblock filter
761 - many optimizations and bugfixes
762 - FunCom ISS audio file demuxer and according ADPCM decoding
767 - MPEG-2 video encoding (Michael)
768 - Id RoQ playback subsystem (Mike Melanson and Tim Ferguson)
769 - Wing Commander III Movie (.mve) file playback subsystem (Mike Melanson
771 - Xan DPCM audio decoder (Mario Brito)
772 - Interplay MVE playback subsystem (Mike Melanson)
773 - Duck DK3 and DK4 ADPCM audio decoders (Mike Melanson)
778 - RealAudio 1.0 (14_4) and 2.0 (28_8) native decoders. Author unknown, code from mplayerhq
779 (originally from public domain player for Amiga at http://www.honeypot.net/audio)
780 - current version now also compiles with older GCC (Fabrice)
781 - 4X multimedia playback system including 4xm file demuxer (Mike
782 Melanson), and 4X video and audio codecs (Michael)
783 - Creative YUV (CYUV) decoder (Mike Melanson)
784 - FFV1 codec (our very simple lossless intra only codec, compresses much better
785 than HuffYUV) (Michael)
786 - ASV1 (Asus), H.264, Intel indeo3 codecs have been added (various)
787 - tiny PNG encoder and decoder, tiny GIF decoder, PAM decoder (PPM with
788 alpha support), JPEG YUV colorspace support. (Fabrice Bellard)
789 - ffplay has been replaced with a newer version which uses SDL (optionally)
790 for multiplatform support (Fabrice)
791 - Sorenson Version 3 codec (SVQ3) support has been added (decoding only) - donated
793 - AMR format has been added (Johannes Carlsson)
794 - 3GP support has been added (Johannes Carlsson)
795 - VP3 codec has been added (Mike Melanson)
796 - more MPEG-1/2 fixes
797 - better multiplatform support, MS Visual Studio fixes (various)
798 - AltiVec optimizations (Magnus Damn and others)
799 - SH4 processor support has been added (BERO)
800 - new public interfaces (avcodec_get_pix_fmt) (Roman Shaposhnick)
801 - VOB streaming support (Brian Foley)
802 - better MP3 autodetection (Andriy Rysin)
803 - qpel encoding (Michael)
804 - 4mv+b frames encoding finally fixed (Michael)
805 - chroma ME (Michael)
806 - 5 comparison functions for ME (Michael)
807 - B-frame encoding speedup (Michael)
808 - WMV2 codec (unfinished - Michael)
809 - user specified diamond size for EPZS (Michael)
810 - Playstation STR playback subsystem, still experimental (Mike and Michael)
811 - ASV2 codec (Michael)
812 - CLJR decoder (Alex)
814 .. And lots more new enhancements and fixes.
819 - completely new integer only MPEG audio layer 1/2/3 decoder rewritten
821 - Recoded DCT and motion vector search with gcc (no longer depends on nasm)
822 - fix quantization bug in AC3 encoder
823 - added PCM codecs and format. Corrected WAV/AVI/ASF PCM issues
824 - added prototype ffplay program
825 - added GOB header parsing on H.263/H.263+ decoder (Juanjo)
826 - bug fix on MCBPC tables of H.263 (Juanjo)
827 - bug fix on DC coefficients of H.263 (Juanjo)
828 - added Advanced Prediction Mode on H.263/H.263+ decoder (Juanjo)
829 - now we can decode H.263 streams found in QuickTime files (Juanjo)
830 - now we can decode H.263 streams found in VIVO v1 files(Juanjo)
831 - preliminary RTP "friendly" mode for H.263/H.263+ coding. (Juanjo)
832 - added GOB header for H.263/H.263+ coding on RTP mode (Juanjo)
833 - now H.263 picture size is returned on the first decoded frame (Juanjo)
834 - added first regression tests
835 - added MPEG-2 TS demuxer
836 - new demux API for libav
837 - more accurate and faster IDCT (Michael)
838 - faster and entropy-controlled motion search (Michael)
839 - two pass video encoding (Michael)
840 - new video rate control (Michael)
841 - added MSMPEG4V1, MSMPEGV2 and WMV1 support (Michael)
842 - great performance improvement of video encoders and decoders (Michael)
843 - new and faster bit readers and vlc parsers (Michael)
844 - high quality encoding mode: tries all macroblock/VLC types (Michael)
845 - added DV video decoder
846 - preliminary RTP/RTSP support in ffserver and libavformat
847 - H.263+ AIC decoding/encoding support (Juanjo)
848 - VCD MPEG-PS mode (Juanjo)
849 - PSNR stuff (Juanjo)
850 - simple stats output (Juanjo)
851 - 16-bit and 15-bit RGB/BGR/GBR support (Bisqwit)
856 - some header fixes (Zdenek Kabelac <kabi at informatics.muni.cz>)
857 - many MMX optimizations (Nick Kurshev <nickols_k at mail.ru>)
858 - added configure system (actually a small shell script)
859 - added MPEG audio layer 1/2/3 decoding using LGPL'ed mpglib by
860 Michael Hipp (temporary solution - waiting for integer only
862 - fixed VIDIOCSYNC interrupt
863 - added Intel H.263 decoding support ('I263' AVI fourCC)
864 - added Real Video 1.0 decoding (needs further testing)
865 - simplified image formats again. Added PGM format (=grey
866 pgm). Renamed old PGM to PGMYUV.
867 - fixed msmpeg4 slice issues (tell me if you still find problems)
868 - fixed OpenDivX bugs with newer versions (added VOL header decoding)
869 - added support for MPlayer interface
870 - added macroblock skip optimization
871 - added MJPEG decoder
872 - added mmx/mmxext IDCT from libmpeg2
873 - added pgmyuvpipe, ppm, and ppm_pipe formats (original patch by Celer
874 <celer at shell.scrypt.net>)
875 - added pixel format conversion layer (e.g. for MJPEG or PPM)
876 - added deinterlacing option
878 - MPEG-4 vol header fixes (Jonathan Marsden <snmjbm at pacbell.net>)
879 - ARM optimizations (Lionel Ulmer <lionel.ulmer at free.fr>).
880 - Windows porting of file converter
881 - added MJPEG raw format (input/ouput)
882 - added JPEG image format support (input/output)
887 - fixed some std header definitions (Bjorn Lindgren
888 <bjorn.e.lindgren at telia.com>).
889 - added MPEG demuxer (MPEG-1 and 2 compatible).
891 - added prototype RM demuxer
892 - added AC3 decoding (done with libac3 by Aaron Holtzman)
893 - added decoding codec parameter guessing (.e.g. for MPEG, because the
894 header does not include them)
895 - fixed header generation in MPEG-1, AVI and ASF muxer: wmplayer can now
896 play them (only tested video)
897 - fixed H.263 white bug
898 - fixed phase rounding in img resample filter
899 - add MMX code for polyphase img resample filter
900 - added CPU autodetection
901 - added generic title/author/copyright/comment string handling (ASF and RM
903 - added SWF demux to extract MP3 track (not usable yet because no MP3
905 - added fractional frame rate support
906 - codecs are no longer searched by read_header() (should fix ffserver
912 - BGR24 patch (initial patch by Jeroen Vreeken <pe1rxq at amsat.org>)
913 - fixed raw yuv output
914 - added motion rounding support in MPEG-4
915 - fixed motion bug rounding in MSMPEG4
916 - added B-frame handling in video core
917 - added full MPEG-1 decoding support
918 - added partial (frame only) MPEG-2 support
919 - changed the FOURCC code for H.263 to "U263" to be able to see the
920 +AVI/H.263 file with the UB Video H.263+ decoder. MPlayer works with
921 this +codec ;) (JuanJo).
922 - Halfpel motion estimation after MB type selection (JuanJo)
923 - added pgm and .Y.U.V output format
924 - suppressed 'img:' protocol. Simply use: /tmp/test%d.[pgm|Y] as input or
926 - added pgmpipe I/O format (original patch from Martin Aumueller
927 <lists at reserv.at>, but changed completely since we use a format
928 instead of a protocol)
933 - added H.263/MPEG-4/MSMPEG4 decoding support. MPEG-4 decoding support
934 (for OpenDivX) is almost complete: 8x8 MVs and rounding are
935 missing. MSMPEG4 support is complete.
936 - added prototype MPEG-1 decoder. Only I- and P-frames handled yet (it
937 can decode ffmpeg MPEGs :-)).
938 - added libavcodec API documentation (see apiexample.c).
939 - fixed image polyphase bug (the bottom of some images could be
941 - added support for non clipped motion vectors (decoding only)
942 and image sizes non-multiple of 16
943 - added support for AC prediction (decoding only)
944 - added file overwrite confirmation (can be disabled with -y)
945 - added custom size picture to H.263 using H.263+ (Juanjo)
950 - added MSMPEG4 (aka DivX) compatible encoder. Changed default codec
951 of AVI and ASF to DIV3.
952 - added -me option to set motion estimation method
953 (default=log). suppressed redundant -hq option.
954 - added options -acodec and -vcodec to force a given codec (useful for
957 - improved dct_quantize speed
958 - factorized some motion estimation code
963 - removing grab code from ffserver and moved it to ffmpeg. Added
964 multistream support to ffmpeg.
965 - added timeshifting support for live feeds (option ?date=xxx in the
967 - added high quality image resize code with polyphase filter (need
968 mmx/see optimization). Enable multiple image size support in ffserver.
969 - added multi live feed support in ffserver
970 - suppressed master feature from ffserver (it should be done with an
971 external program which opens the .ffm url and writes it to another
973 - added preliminary support for video stream parsing (WAV and AVI half
974 done). Added proper support for audio/video file conversion in
976 - added preliminary support for video file sending from ffserver
977 - redesigning I/O subsystem: now using URL based input and output
979 - added WAV format support
980 - added "tty user interface" to ffmpeg to stop grabbing gracefully
981 - added MMX/SSE optimizations to SAD (Sums of Absolutes Differences)
982 (Juan J. Sierralta P. a.k.a. "Juanjo" <juanjo at atmlab.utfsm.cl>)
983 - added MMX DCT from mpeg2_movie 1.5 (Juanjo)
984 - added new motion estimation algorithms, log and phods (Juanjo)
985 - changed directories: libav for format handling, libavcodec for
991 - added stereo in MPEG audio encoder
996 - added 'high quality' mode which use motion vectors. It can be used in
997 real time at low resolution.
998 - fixed rounding problems which caused quality problems at high
999 bitrates and large GOP size
1002 version 0.3.2: small fixes
1008 version 0.3.1: added avi/divx support
1011 - added MPEG-4 codec compatible with OpenDivX. It is based on the H.263 codec
1012 - added sound for flash format (not tested)
1015 version 0.3: initial public release