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
31 - Automatically rotate videos based on metadata in avconv
36 - shuffleplanes filter
37 - replaygain data export
38 - Alias PIX image encoder and decoder
39 - BRender PIX image decoder
40 - Amazing Studio PAF playback support
42 - BMP standalone parser
43 - OpenEXR image decoder
44 - support encoding and decoding 4-channel SGI images
45 - support decoding 16-bit RLE SGI images
47 - LucasArts SMUSH SANM video decoder
48 - LucasArts SMUSH VIMA audio decoder (ADPCM)
49 - LucasArts SMUSH demuxer
50 - MP2 encoding via TwoLAME
52 - Silicon Graphics RLE 8-bit video decoder
53 - Silicon Graphics Motion Video Compressor 1 & 2 decoder
54 - Silicon Graphics Movie demuxer
55 - On2 AVC (Audio for Video) decoder
56 - support for decoding through DXVA2 in avconv
57 - libbs2b-based stereo-to-binaural audio filter
59 - display matrix export and rotation API
60 - drop avserver, it was unmaintained for years and largely broken
62 - request Icecast metadata by default
63 - support for using metadata in stream specifiers in avtools
69 - support ID3v2 tags in ASF files
70 - reference-counting for AVFrame and AVPacket data
71 - avconv now fails when input options are used for output file
73 - avconv options -filter_script and -filter_complex_script, which allow a
74 filtergraph description to be read from a file
75 - uniform options syntax across all filters
78 - asetpts filter (same as setpts, but for audio)
79 - trim and atrim filters
80 - avconv -t and -ss (output-only) options are now sample-accurate when
82 - Matroska muxer can now put the index at the beginning of the file.
83 - avconv -deinterlace option removed, the yadif filter should be used instead
84 - Apple Intermediate Codec decoder
85 - Escape 130 video decoder
86 - support for slice multithreading in libavfilter
87 - VC-1 interlaced B-frame support
88 - support for WavPack muxing (raw and in Matroska)
90 - WavPack encoding through libwavpack
91 - Added the -n parameter to avconv
93 - when transcoding with avconv (i.e. not streamcopying), -ss is now accurate
94 even when used as an input option. Previous behavior can be restored with
95 the -noaccurate_seek option.
96 - avconv -t option can now be used for inputs, to limit the duration of
97 data read from an input file
98 - Voxware MetaSound decoder
100 - Error Resilient AAC syntax (ER AAC LC) decoding
101 - Low Delay AAC (ER AAC LD) decoding
102 - mux chapters in ASF files
103 - Opus in Ogg demuxing
104 - Enhanced Low Delay AAC (ER AAC ELD) decoding (no LD SBR support)
106 - HNM version 4 demuxer and video decoder
108 - raw HEVC, HEVC in MOV/MP4, HEVC in Matroska, HEVC in MPEG-TS demuxing
109 - remove avplay -vismv option, which has not worked for a long time
111 - setsar/setdar filters now support variables in ratio expressions
112 - dar variable in the scale filter now returns the actual DAR (i.e. a * sar)
114 - support for decoding through VDPAU in avconv (the -hwaccel option)
115 - remove mp3_header_(de)compress bitstream filters
116 - stereoscopic 3d metadata handling
117 - png standalone parser
118 - WebP encoding via libwebp
121 - Mirillis FIC video decoder
123 - compand audio filter
127 - av_basename and av_dirname
128 - adobe and limelight publisher authentication in RTMP
129 - VDPAU hardware acceleration through normal hwaccel
134 - ashowinfo audio filter
135 - 24-bit FLAC encoding
136 - audio volume filter
137 - deprecated the avconv -vol option. the volume filter is to be used instead.
138 - multi-channel ALAC encoding up to 7.1
139 - TAK demuxer, parser, and decoder
140 - adaptive frame-level multithreading for H.264
144 - metadata (INFO tag) support in WAV muxer
145 - support for building DLLs using MSVC
146 - remove avserver daemon mode
147 - support building on the Plan 9 operating system
148 - ffv1: support version 1.3
153 - XWD encoder and decoder
154 - Support for fragmentation in the mov/mp4 muxer
155 - ISMV (Smooth Streaming) muxer
156 - CDXL demuxer and decoder
157 - Apple ProRes encoder
158 - Sun Rasterfile Encoder
160 - ID3v2 attached pictures reading and writing
161 - WMA Lossless decoder
163 - RealAudio Lossless decoder
165 - drop support for avconv without libavfilter
166 - add libavresample audio conversion library
167 - audio filters support in libavfilter and avconv
171 - avprobe output is now standard INI or JSON. The old format can still
172 be used with -of old.
173 - Indeo Audio decoder
174 - channelsplit audio filter
175 - RTMPT protocol support
176 - iLBC encoding/decoding via libilbc
177 - Microsoft Screen 1 decoder
179 - audio channel mapping filter
180 - Microsoft ATC Screen decoder
182 - TechSmith Screen Codec 2 decoder
183 - AAC encoding via libfdk-aac
184 - Microsoft Expression Encoder Screen decoder
185 - RTMPS protocol support
186 - RTMPTS protocol support
187 - JPEG 2000 encoding support through OpenJPEG
188 - G.723.1 demuxer and decoder
189 - RTMPE protocol support
190 - RTMPTE protocol support
191 - Canopus Lossless Codec decoder
192 - avconv -shortest option is now per-output file,
193 -pass and -passlogfile are now per-output stream
195 - Microsoft Screen 2 decoder
196 - RTP depacketization of JPEG
197 - Smooth Streaming live segmenter muxer
198 - RTP packetization of JPEG
199 - Opus decoder and encoder using libopus
200 - remove -same_quant, it hasn't worked for years
201 - support for building with MSVC
212 - Automatic thread count based on detection number of (available) CPU cores
213 - Deprecate libpostproc. If desired, the switch --enable-postproc will
214 enable it but it may be removed in a later Libav release.
215 - rv34: frame-level multi-threading
216 - optimized iMDCT transform on x86 using SSE for for mpegaudiodec
222 - Flash Screen Video 2 decoder
223 - ffplay/ffprobe/ffserver renamed to avplay/avprobe/avserver
224 - ffmpeg deprecated, added avconv, which is almost the same for now, except
225 for a few incompatible changes in the options, which will hopefully make them
226 easier to use. The changes are:
227 * The options placement is now strictly enforced! While in theory the
228 options for ffmpeg should be given in [input options] -i INPUT [output
229 options] OUTPUT order, in practice it was possible to give output options
230 before the -i and it mostly worked. Except when it didn't - the behavior was
231 a bit inconsistent. In avconv, it is not possible to mix input and output
232 options. All non-global options are reset after an input or output filename.
233 * All per-file options are now truly per-file - they apply only to the next
234 input or output file and specifying different values for different files
235 will now work properly (notably -ss and -t options).
236 * All per-stream options are now truly per-stream - it is possible to
237 specify which stream(s) should a given option apply to. See the Stream
238 specifiers section in the avconv manual for details.
239 * In ffmpeg some options (like -newvideo/-newaudio/...) are irregular in the
240 sense that they're specified after the output filename instead of before,
241 like all other options. In avconv this irregularity is removed, all options
242 apply to the next input or output file.
243 * -newvideo/-newaudio/-newsubtitle options were removed. Not only were they
244 irregular and highly confusing, they were also redundant. In avconv the -map
245 option will create new streams in the output file and map input streams to
246 them. E.g. avconv -i INPUT -map 0 OUTPUT will create an output stream for
247 each stream in the first input file.
248 * The -map option now has slightly different and more powerful syntax:
249 + Colons (':') are used to separate file index/stream type/stream index
250 instead of dots. Comma (',') is used to separate the sync stream instead
251 of colon.. This is done for consistency with other options.
252 + It's possible to specify stream type. E.g. -map 0:a:2 creates an
253 output stream from the third input audio stream.
254 + Omitting the stream index now maps all the streams of the given type,
255 not just the first. E.g. -map 0:s creates output streams for all the
256 subtitle streams in the first input file.
257 + Since -map can now match multiple streams, negative mappings were
258 introduced. Negative mappings disable some streams from an already
259 defined map. E.g. '-map 0 -map -0:a:1' means 'create output streams for
260 all the stream in the first input file, except for the second audio
262 * There is a new option -c (or -codec) for choosing the decoder/encoder to
263 use, which allows to precisely specify target stream(s) consistently with
264 other options. E.g. -c:v lib264 sets the codec for all video streams, -c:a:0
265 libvorbis sets the codec for the first audio stream and -c copy copies all
266 the streams without reencoding. Old -vcodec/-acodec/-scodec options are now
268 * It is now possible to precisely specify which stream should an AVOption
269 apply to. E.g. -b:v:0 2M sets the bitrate for the first video stream, while
270 -b:a 128k sets the bitrate for all audio streams. Note that the old -ab 128k
271 syntax is deprecated and will stop working soon.
272 * -map_chapters now takes only an input file index and applies to the next
273 output file. This is consistent with how all the other options work.
274 * -map_metadata now takes only an input metadata specifier and applies to
275 the next output file. Output metadata specifier is now part of the option
276 name, similarly to the AVOptions/map/codec feature above.
277 * -metadata can now be used to set metadata on streams and chapters, e.g.
278 -metadata:s:1 language=eng sets the language of the first stream to 'eng'.
279 This made -vlang/-alang/-slang options redundant, so they were removed.
280 * -qscale option now uses stream specifiers and applies to all streams, not
281 just video. I.e. plain -qscale number would now apply to all streams. To get
282 the old behavior, use -qscale:v. Also there is now a shortcut -q for -qscale
283 and -aq is now an alias for -q:a.
284 * -vbsf/-absf/-sbsf options were removed and replaced by a -bsf option which
285 uses stream specifiers. Use -bsf:v/a/s instead of the old options.
286 * -itsscale option now uses stream specifiers, so its argument is only the
288 * -intra option was removed, use -g 0 for the same effect.
289 * -psnr option was removed, use -flags +psnr for the same effect.
290 * -vf option is now an alias to the new -filter option, which uses stream specifiers.
291 * -vframes/-aframes/-dframes options are now aliases to the new -frames option.
292 * -vtag/-atag/-stag options are now aliases to the new -tag option.
294 - Windows Media Image decoder
298 - libcdio-paranoia input device for audio CD grabbing
300 - Apple ProRes decoder
301 - CELT in Ogg demuxing
302 - VC-1 interlaced decoding
303 - lut, lutrgb, and lutyuv filters
306 - Speex encoding via libspeex
307 - 4:2:2 H.264 decoding support
308 - 4:2:2 and 4:4:4 H.264 encoding with libx264
309 - Pulseaudio input device
310 - replacement Indeo 3 decoder
311 - TLS/SSL and HTTPS protocol support
312 - AVOptions API rewritten and documented
313 - most of CODEC_FLAG2_*, some CODEC_FLAG_* and many codec-specific fields in
314 AVCodecContext deprecated. Codec private options should be used instead.
315 - Properly working defaults in libx264 wrapper, support for native presets.
316 - Encrypted OMA files support
317 - Discworld II BMV decoding support
319 - OS X Video Decoder Acceleration (VDA) support
320 - CRI ADX audio format muxer and demuxer
321 - Playstation Portable PMP format demuxer
322 - PCM format support in OMA demuxer
324 - Dxtory capture format decoder
325 - v410 QuickTime uncompressed 4:4:4 10-bit encoder and decoder
327 - Simple segmenting muxer
334 - E-AC-3 audio encoder
335 - ac3enc: add channel coupling support
336 - floating-point sample format support for (E-)AC-3, DCA, AAC, Vorbis decoders
337 - H.264/MPEG frame-level multithreading
338 - av_metadata_* functions renamed to av_dict_* and moved to libavutil
339 - 4:4:4 H.264 decoding support
340 - 10-bit H.264 optimizations for x86
341 - bump libswscale for recently reported ABI break
346 - VP8 frame-level multithreading
347 - NEON optimizations for VP8
348 - removed a lot of deprecated API cruft
349 - FFT and IMDCT optimizations for AVX (Sandy Bridge) processors
351 - SMPTE 302M AES3 audio decoder
352 - ffmpeg no longer quits after the 'q' key is pressed; use 'ctrl+c' instead
353 - 9bit and 10bit per sample support in the H.264 decoder
358 - WebM support in Matroska de/muxer
359 - low overhead Ogg muxing
361 - VP8 de/encoding via libvpx
362 - Demuxer for On2's IVF format
363 - Pictor/PC Paint decoder
365 - libfaad2 wrapper removed
366 - DTS-ES extension (XCh) decoding support
368 - RTSP tunneling over HTTP
369 - RTP depacketization of SVQ3
370 - -strict inofficial replaced by -strict unofficial
371 - ffplay -exitonkeydown and -exitonmousedown options added
372 - native GSM / GSM MS decoder
373 - RTP depacketization of QDM2
374 - ANSI/ASCII art playback system
375 - Lego Mindstorms RSO de/muxer
376 - SubRip subtitle file muxer and demuxer
377 - Chinese AVS encoding via libxavs
378 - ffprobe -show_packets option added
379 - RTP packetization of Theora and Vorbis
380 - RTP depacketization of MP4A-LATM
381 - RTP packetization and depacketization of VP8
383 - Apple HTTP Live Streaming demuxer
386 - G.722 ADPCM audio encoder/decoder
389 - frei0r wrapper filter
390 - change crop filter syntax to width:height:x:y
391 - make the crop filter accept parametric expressions
392 - make ffprobe accept AVFormatContext options
395 - Demuxer for Leitch/Harris' VR native stream format (LXF)
396 - RTP depacketization of the X-QT QuickTime format
397 - SAP (Session Announcement Protocol, RFC 2974) muxer and demuxer
399 - ffmpeg -crop* options removed
400 - transpose filter added
401 - ffmpeg -force_key_frames option added
402 - demuxer for receiving raw rtp:// URLs without an SDP description
403 - single stream LATM/LOAS decoder
404 - setpts filter added
405 - Win64 support for optimized x86 assembly functions
406 - MJPEG/AVI1 to JPEG/JFIF bitstream filter
407 - ASS subtitle encoder and decoder
408 - IEC 61937 encapsulation for E-AC-3, TrueHD, DTS-HD (for HDMI passthrough)
409 - overlay filter added
410 - rename aspect filter to setdar, and pixelaspect to setsar
412 - Mobotix .mxg demuxer
413 - frei0r source added
414 - hqdn3d filter added
415 - RTP depacketization of QCELP
417 - gradfun filter added
419 - replace the ocv_smooth filter with a more generic ocv filter
420 - Windows Televison (WTV) demuxer
421 - FFmpeg metadata format muxer and demuxer
422 - SubRip (srt) subtitle decoder
423 - floating-point AC-3 encoder added
425 - ffmpeg -copytb option added
427 - Wing Commander IV movies decoder added
429 - Bink version 'b' audio and video decoder
430 - Bitmap Brothers JV playback system
431 - Apple HTTP Live Streaming protocol handler
432 - sndio support for playback and record
433 - Linux framebuffer input device added
434 - Chronomaster DFA decoder
435 - Mobotix MxPEG decoder
436 - AAC encoding via libvo-aacenc
437 - AMR-WB encoding via libvo-amrwbenc
439 - fieldorder video filter added
444 - PB-frame decoding for H.263
445 - deprecated vhook subsystem removed
446 - deprecated old scaler removed
448 - Alpha channel scaler
450 - RTP packetization of H.263
451 - RTP packetization of AMR
452 - RTP depacketization of Vorbis
453 - CorePNG decoding support
454 - Cook multichannel decoding support
455 - introduced avlanguage helpers in libavformat
456 - 8088flex TMV demuxer and decoder
457 - per-stream language-tags extraction in asfdec
458 - V210 decoder and encoder
459 - remaining GPL parts in AC-3 decoder converted to LGPL
461 - SoX native format muxer and demuxer
462 - AMR-NB decoding/encoding, AMR-WB decoding via OpenCORE libraries
464 - Electronic Arts Madcow decoder
465 - DivX (XSUB) subtitle encoder
466 - nonfree libamr support for AMR-NB/WB decoding/encoding removed
467 - experimental AAC encoder
468 - RTP depacketization of ASF and RTSP from WMS servers
469 - RTMP support in libavformat
470 - noX handling for OPT_BOOL X options
472 - IEC-61937 compatible Muxer
474 - Bluray (PGS) subtitle decoder
475 - LPCM support in MPEG-TS (HDMV RID as found on Blu-ray disks)
477 - Core Audio Format demuxer
479 - MD STUDIO audio demuxer
480 - RF64 support in WAV demuxer
481 - MPEG-4 Audio Lossless Coding (ALS) decoder
482 - -formats option split into -formats, -codecs, -bsfs, and -protocols
484 - CDG demuxer and decoder
486 - Auravision Aura 1 and 2 decoders
487 - Deluxe Paint Animation playback system
489 - Adobe Filmstrip muxer and demuxer
490 - RTP depacketization of H.263
491 - Bink demuxer and audio/video decoders
492 - enable symbol versioning by default for linkers that support it
493 - IFF PBM/ILBM bitmap decoder
496 - RTP depacketization of AMR
502 - Kega Game Video (KGV1) decoder
503 - VorbisComment writing for FLAC, Ogg FLAC and Ogg Speex files
504 - RTP depacketization of Theora
505 - HTTP Digest authentication
506 - RTMP/RTMPT/RTMPS/RTMPE/RTMPTE protocol support via librtmp
507 - Psygnosis YOP demuxer and video decoder
508 - spectral extension support in the E-AC-3 decoder
509 - unsharp video filter
510 - RTP hinting in the mov/3gp/mp4 muxer
511 - Dirac in Ogg demuxing
512 - seek to keyframes in Ogg
513 - 4:2:2 and 4:4:4 Theora decoding
514 - 35% faster VP3/Theora decoding
515 - faster AAC decoding
516 - faster H.264 decoding
517 - RealAudio 1.0 (14.4K) encoder
522 - DV50 AKA DVCPRO50 encoder, decoder, muxer and demuxer
523 - TechSmith Camtasia (TSCC) video decoder
524 - IBM Ultimotion (ULTI) video decoder
525 - Sierra Online audio file demuxer and decoder
526 - Apple QuickDraw (qdrw) video decoder
527 - Creative ADPCM audio decoder (16 bits as well as 8 bits schemes)
528 - Electronic Arts Multimedia (WVE/UV2/etc.) file demuxer
529 - Miro VideoXL (VIXL) video decoder
530 - H.261 video encoder
532 - Nullsoft Video (NSV) file demuxer
533 - Shorten audio decoder
535 - Apple Lossless Audio Codec (ALAC) decoder
536 - Winnov WNV1 video decoder
537 - Autodesk Animator Studio Codec (AASC) decoder
538 - Indeo 2 video decoder
539 - Fraps FPS1 video decoder
540 - Snow video encoder/decoder
541 - Sonic audio encoder/decoder
542 - Vorbis audio decoder
543 - Macromedia ADPCM decoder
544 - Duck TrueMotion 2 video decoder
545 - support for decoding FLX and DTA extensions in FLIC files
546 - H.264 custom quantization matrices support
547 - ffserver fixed, it should now be usable again
549 - Real Cooker audio decoder
550 - TrueSpeech audio decoder
551 - WMA2 audio decoder fixed, now all files should play correctly
552 - RealAudio 14.4 and 28.8 decoders fixed
554 - build system improvements
555 - tabs and trailing whitespace removed from the codebase
556 - CamStudio video decoder
557 - AIFF/AIFF-C audio format, encoding and decoding
558 - ADTS AAC file reading and writing
559 - Creative VOC file reading and writing
560 - American Laser Games multimedia (*.mm) playback system
561 - Zip Motion Blocks Video decoder
562 - improved Theora/VP3 decoder
563 - True Audio (TTA) decoder
564 - AVS demuxer and video decoder
566 - Smacker demuxer and decoder
567 - NuppelVideo/MythTV demuxer and RTjpeg decoder
569 - MPEG-2 intra VLC support
570 - MPEG-2 4:2:2 encoder
571 - Flash Screen Video decoder
573 - Chinese AVS decoder
576 - VC-1/WMV3/WMV9 video decoder
579 - VMware video decoder
582 - WavPack lossless audio decoder
583 - Targa (.TGA) picture decoder
584 - Vorbis audio encoder
585 - Delphine Software .cin demuxer/audio and video decoder
586 - Tiertex .seq demuxer/video decoder
588 - TIFF picture encoder and decoder
589 - GIF picture decoder
590 - Intel Music Coder decoder
591 - Zip Motion Blocks Video encoder
593 - Flash Screen Video encoder
594 - Theora encoding via libtheora
597 - GSM-MS encoder and decoder
599 - DXA demuxer and decoder
601 - Gamecube movie (.THP) playback system
602 - Blackfin optimizations
603 - Interplay C93 demuxer and video decoder
604 - Bethsoft VID demuxer and video decoder
607 - V.Flash PTX decoder
608 - RoQ muxer, RoQ audio encoder
609 - Renderware TXD demuxer and decoder
610 - extern C declarations for C++ removed from headers
611 - sws_flags command line option
615 - OS/2 support removed and restored again
618 - additional SPARC (VIS) optimizations
620 - slice-based parallel H.264 decoding
621 - Monkey's Audio demuxer and decoder
622 - AMV audio and video decoder
624 - H.264 PAFF decoding
625 - Nellymoser ASAO decoder
626 - Beam Software SIFF demuxer and decoder
627 - libvorbis Vorbis decoding removed in favor of native decoder
628 - IntraX8 (J-Frame) subdecoder for WMV2 and VC-1
629 - Ogg (Theora, Vorbis and FLAC) muxer
630 - The "device" muxers and demuxers are now in a new libavdevice library
631 - PC Paintbrush PCX decoder
632 - Sun Rasterfile decoder
633 - TechnoTrend PVA demuxer
634 - Linux Media Labs MPEG-4 (LMLM4) demuxer
635 - AVM2 (Flash 9) SWF muxer
636 - QT variant of IMA ADPCM encoder
638 - iPod/iPhone compatible mp4 muxer
640 - MSN TCP Webcam stream demuxer
641 - RL2 demuxer / decoder
644 - non-recursive Makefiles
646 - MAXIS EA XA (.xa) demuxer / decoder
650 - Electronic Arts CMV decoder
651 - Motion Pixels Video decoder
652 - Motion Pixels MVI demuxer
653 - removed animated GIF decoder/demuxer
654 - D-Cinema audio muxer
655 - Electronic Arts TGV decoder
656 - Apple Lossless Audio Codec (ALAC) encoder
658 - floating point PCM encoder/decoder
660 - DV100 AKA DVCPRO HD decoder and demuxer
661 - E-AC-3 support added to AC-3 decoder
662 - Nellymoser ASAO encoder
663 - ASS and SSA demuxer and muxer
664 - liba52 wrapper removed
665 - SVQ3 watermark decoding support
666 - Speex decoding via libspeex
667 - Electronic Arts TGQ decoder
669 - QCELP / PureVoice decoder
671 - hybrid WavPack support
672 - R3D REDCODE demuxer
673 - ALSA support for playback and record
674 - Electronic Arts TQI decoder
675 - OpenJPEG based JPEG 2000 decoder
676 - NC (NC4600) camera file demuxer
677 - Gopher client support
679 - generic metadata API
684 - DV encoder, DV muxer
685 - Microsoft RLE video decoder
686 - Microsoft Video-1 decoder
687 - Apple Animation (RLE) decoder
688 - Apple Graphics (SMC) decoder
689 - Apple Video (RPZA) decoder
691 - Sega FILM (CPK) file demuxer
692 - Westwood multimedia support (VQA & AUD files)
693 - Id Quake II CIN playback support
695 - FLIC playback support
696 - RealVideo 2.0 (RV20) decoder
697 - Duck TrueMotion v1 (DUCK) video decoder
698 - Sierra VMD demuxer and video decoder
699 - MSZH and ZLIB decoder support
703 - rate distortion optimal cbp support
704 - rate distorted optimal ac prediction for MPEG-4
705 - rate distorted optimal lambda->qp support
706 - AAC encoding with libfaac
707 - Sunplus JPEG codec (SP5X) support
708 - use Lagrange multipler instead of QP for ratecontrol
709 - Theora/VP3 decoding support
710 - XA and ADX ADPCM codecs
711 - export MPEG-2 active display area / pan scan
712 - Add support for configuring with IBM XLC
713 - floating point AAN DCT
714 - initial support for zygo video (not complete)
716 - new audio/video parser API
718 - av_read_frame() and av_seek_frame() support
719 - missing last frame fixes
720 - seek by mouse in ffplay
721 - noise reduction of DCT coefficients
722 - H.263 OBMC & 4MV support
723 - H.263 alternative inter vlc support
725 - H.263 slice structured mode
726 - interlaced DCT support for MPEG-2 encoding
727 - stuffing to stay above min_bitrate
728 - MB type & QP visualization
729 - frame stepping for ffplay
730 - interlaced motion estimation
731 - alternate scantable support
732 - SVCD scan offset support
735 - quantizer noise shaping
736 - G.726 ADPCM audio codec
738 - multithreaded/SMP motion estimation
739 - multithreaded/SMP encoding for MPEG-1/MPEG-2/MPEG-4/H.263
740 - multithreaded/SMP decoding for MPEG-2
742 - Metrowerks CodeWarrior suppport
743 - H.263+ custom pcf support
744 - nicer output for 'ffmpeg -formats'
746 - SGI image format, encoding and decoding
747 - H.264 loop filter support
748 - H.264 CABAC support
749 - nicer looking arrows for the motion vector visualization
750 - improved VCD support
751 - audio timestamp drift compensation
752 - MPEG-2 YUV 422/444 support
753 - polyphase kaiser windowed sinc and blackman nuttall windowed sinc audio resample
754 - better image scaling
756 - correctly interleave packets during encoding
757 - VIS optimized motion compensation
758 - intra_dc_precision>0 encoding support
759 - support reuse of motion vectors/MB types/field select values of the source video
760 - more accurate deblock filter
762 - many optimizations and bugfixes
763 - FunCom ISS audio file demuxer and according ADPCM decoding
768 - MPEG-2 video encoding (Michael)
769 - Id RoQ playback subsystem (Mike Melanson and Tim Ferguson)
770 - Wing Commander III Movie (.mve) file playback subsystem (Mike Melanson
772 - Xan DPCM audio decoder (Mario Brito)
773 - Interplay MVE playback subsystem (Mike Melanson)
774 - Duck DK3 and DK4 ADPCM audio decoders (Mike Melanson)
779 - RealAudio 1.0 (14_4) and 2.0 (28_8) native decoders. Author unknown, code from mplayerhq
780 (originally from public domain player for Amiga at http://www.honeypot.net/audio)
781 - current version now also compiles with older GCC (Fabrice)
782 - 4X multimedia playback system including 4xm file demuxer (Mike
783 Melanson), and 4X video and audio codecs (Michael)
784 - Creative YUV (CYUV) decoder (Mike Melanson)
785 - FFV1 codec (our very simple lossless intra only codec, compresses much better
786 than HuffYUV) (Michael)
787 - ASV1 (Asus), H.264, Intel indeo3 codecs have been added (various)
788 - tiny PNG encoder and decoder, tiny GIF decoder, PAM decoder (PPM with
789 alpha support), JPEG YUV colorspace support. (Fabrice Bellard)
790 - ffplay has been replaced with a newer version which uses SDL (optionally)
791 for multiplatform support (Fabrice)
792 - Sorenson Version 3 codec (SVQ3) support has been added (decoding only) - donated
794 - AMR format has been added (Johannes Carlsson)
795 - 3GP support has been added (Johannes Carlsson)
796 - VP3 codec has been added (Mike Melanson)
797 - more MPEG-1/2 fixes
798 - better multiplatform support, MS Visual Studio fixes (various)
799 - AltiVec optimizations (Magnus Damn and others)
800 - SH4 processor support has been added (BERO)
801 - new public interfaces (avcodec_get_pix_fmt) (Roman Shaposhnick)
802 - VOB streaming support (Brian Foley)
803 - better MP3 autodetection (Andriy Rysin)
804 - qpel encoding (Michael)
805 - 4mv+b frames encoding finally fixed (Michael)
806 - chroma ME (Michael)
807 - 5 comparison functions for ME (Michael)
808 - B-frame encoding speedup (Michael)
809 - WMV2 codec (unfinished - Michael)
810 - user specified diamond size for EPZS (Michael)
811 - Playstation STR playback subsystem, still experimental (Mike and Michael)
812 - ASV2 codec (Michael)
813 - CLJR decoder (Alex)
815 .. And lots more new enhancements and fixes.
820 - completely new integer only MPEG audio layer 1/2/3 decoder rewritten
822 - Recoded DCT and motion vector search with gcc (no longer depends on nasm)
823 - fix quantization bug in AC3 encoder
824 - added PCM codecs and format. Corrected WAV/AVI/ASF PCM issues
825 - added prototype ffplay program
826 - added GOB header parsing on H.263/H.263+ decoder (Juanjo)
827 - bug fix on MCBPC tables of H.263 (Juanjo)
828 - bug fix on DC coefficients of H.263 (Juanjo)
829 - added Advanced Prediction Mode on H.263/H.263+ decoder (Juanjo)
830 - now we can decode H.263 streams found in QuickTime files (Juanjo)
831 - now we can decode H.263 streams found in VIVO v1 files(Juanjo)
832 - preliminary RTP "friendly" mode for H.263/H.263+ coding. (Juanjo)
833 - added GOB header for H.263/H.263+ coding on RTP mode (Juanjo)
834 - now H.263 picture size is returned on the first decoded frame (Juanjo)
835 - added first regression tests
836 - added MPEG-2 TS demuxer
837 - new demux API for libav
838 - more accurate and faster IDCT (Michael)
839 - faster and entropy-controlled motion search (Michael)
840 - two pass video encoding (Michael)
841 - new video rate control (Michael)
842 - added MSMPEG4V1, MSMPEGV2 and WMV1 support (Michael)
843 - great performance improvement of video encoders and decoders (Michael)
844 - new and faster bit readers and vlc parsers (Michael)
845 - high quality encoding mode: tries all macroblock/VLC types (Michael)
846 - added DV video decoder
847 - preliminary RTP/RTSP support in ffserver and libavformat
848 - H.263+ AIC decoding/encoding support (Juanjo)
849 - VCD MPEG-PS mode (Juanjo)
850 - PSNR stuff (Juanjo)
851 - simple stats output (Juanjo)
852 - 16-bit and 15-bit RGB/BGR/GBR support (Bisqwit)
857 - some header fixes (Zdenek Kabelac <kabi at informatics.muni.cz>)
858 - many MMX optimizations (Nick Kurshev <nickols_k at mail.ru>)
859 - added configure system (actually a small shell script)
860 - added MPEG audio layer 1/2/3 decoding using LGPL'ed mpglib by
861 Michael Hipp (temporary solution - waiting for integer only
863 - fixed VIDIOCSYNC interrupt
864 - added Intel H.263 decoding support ('I263' AVI fourCC)
865 - added Real Video 1.0 decoding (needs further testing)
866 - simplified image formats again. Added PGM format (=grey
867 pgm). Renamed old PGM to PGMYUV.
868 - fixed msmpeg4 slice issues (tell me if you still find problems)
869 - fixed OpenDivX bugs with newer versions (added VOL header decoding)
870 - added support for MPlayer interface
871 - added macroblock skip optimization
872 - added MJPEG decoder
873 - added mmx/mmxext IDCT from libmpeg2
874 - added pgmyuvpipe, ppm, and ppm_pipe formats (original patch by Celer
875 <celer at shell.scrypt.net>)
876 - added pixel format conversion layer (e.g. for MJPEG or PPM)
877 - added deinterlacing option
879 - MPEG-4 vol header fixes (Jonathan Marsden <snmjbm at pacbell.net>)
880 - ARM optimizations (Lionel Ulmer <lionel.ulmer at free.fr>).
881 - Windows porting of file converter
882 - added MJPEG raw format (input/ouput)
883 - added JPEG image format support (input/output)
888 - fixed some std header definitions (Bjorn Lindgren
889 <bjorn.e.lindgren at telia.com>).
890 - added MPEG demuxer (MPEG-1 and 2 compatible).
892 - added prototype RM demuxer
893 - added AC3 decoding (done with libac3 by Aaron Holtzman)
894 - added decoding codec parameter guessing (.e.g. for MPEG, because the
895 header does not include them)
896 - fixed header generation in MPEG-1, AVI and ASF muxer: wmplayer can now
897 play them (only tested video)
898 - fixed H.263 white bug
899 - fixed phase rounding in img resample filter
900 - add MMX code for polyphase img resample filter
901 - added CPU autodetection
902 - added generic title/author/copyright/comment string handling (ASF and RM
904 - added SWF demux to extract MP3 track (not usable yet because no MP3
906 - added fractional frame rate support
907 - codecs are no longer searched by read_header() (should fix ffserver
913 - BGR24 patch (initial patch by Jeroen Vreeken <pe1rxq at amsat.org>)
914 - fixed raw yuv output
915 - added motion rounding support in MPEG-4
916 - fixed motion bug rounding in MSMPEG4
917 - added B-frame handling in video core
918 - added full MPEG-1 decoding support
919 - added partial (frame only) MPEG-2 support
920 - changed the FOURCC code for H.263 to "U263" to be able to see the
921 +AVI/H.263 file with the UB Video H.263+ decoder. MPlayer works with
922 this +codec ;) (JuanJo).
923 - Halfpel motion estimation after MB type selection (JuanJo)
924 - added pgm and .Y.U.V output format
925 - suppressed 'img:' protocol. Simply use: /tmp/test%d.[pgm|Y] as input or
927 - added pgmpipe I/O format (original patch from Martin Aumueller
928 <lists at reserv.at>, but changed completely since we use a format
929 instead of a protocol)
934 - added H.263/MPEG-4/MSMPEG4 decoding support. MPEG-4 decoding support
935 (for OpenDivX) is almost complete: 8x8 MVs and rounding are
936 missing. MSMPEG4 support is complete.
937 - added prototype MPEG-1 decoder. Only I- and P-frames handled yet (it
938 can decode ffmpeg MPEGs :-)).
939 - added libavcodec API documentation (see apiexample.c).
940 - fixed image polyphase bug (the bottom of some images could be
942 - added support for non clipped motion vectors (decoding only)
943 and image sizes non-multiple of 16
944 - added support for AC prediction (decoding only)
945 - added file overwrite confirmation (can be disabled with -y)
946 - added custom size picture to H.263 using H.263+ (Juanjo)
951 - added MSMPEG4 (aka DivX) compatible encoder. Changed default codec
952 of AVI and ASF to DIV3.
953 - added -me option to set motion estimation method
954 (default=log). suppressed redundant -hq option.
955 - added options -acodec and -vcodec to force a given codec (useful for
958 - improved dct_quantize speed
959 - factorized some motion estimation code
964 - removing grab code from ffserver and moved it to ffmpeg. Added
965 multistream support to ffmpeg.
966 - added timeshifting support for live feeds (option ?date=xxx in the
968 - added high quality image resize code with polyphase filter (need
969 mmx/see optimization). Enable multiple image size support in ffserver.
970 - added multi live feed support in ffserver
971 - suppressed master feature from ffserver (it should be done with an
972 external program which opens the .ffm url and writes it to another
974 - added preliminary support for video stream parsing (WAV and AVI half
975 done). Added proper support for audio/video file conversion in
977 - added preliminary support for video file sending from ffserver
978 - redesigning I/O subsystem: now using URL based input and output
980 - added WAV format support
981 - added "tty user interface" to ffmpeg to stop grabbing gracefully
982 - added MMX/SSE optimizations to SAD (Sums of Absolutes Differences)
983 (Juan J. Sierralta P. a.k.a. "Juanjo" <juanjo at atmlab.utfsm.cl>)
984 - added MMX DCT from mpeg2_movie 1.5 (Juanjo)
985 - added new motion estimation algorithms, log and phods (Juanjo)
986 - changed directories: libav for format handling, libavcodec for
992 - added stereo in MPEG audio encoder
997 - added 'high quality' mode which use motion vectors. It can be used in
998 real time at low resolution.
999 - fixed rounding problems which caused quality problems at high
1000 bitrates and large GOP size
1003 version 0.3.2: small fixes
1009 version 0.3.1: added avi/divx support
1012 - added MPEG-4 codec compatible with OpenDivX. It is based on the H.263 codec
1013 - added sound for flash format (not tested)
1016 version 0.3: initial public release