1 Entries are sorted chronologically from oldest to youngest within each release,
2 releases are sorted from youngest to oldest.
7 - replaygain data export
8 - Alias PIX image encoder and decoder
9 - BRender PIX image decoder
10 - Amazing Studio PAF playback support
12 - bmp standalone parser
13 - OpenEXR image decoder
14 - support encoding and decoding 4-channel SGI images
15 - support decoding 16-bit RLE SGI images
17 - LucasArts SMUSH SANM video decoder
18 - LucasArts SMUSH VIMA audio decoder (ADPCM)
19 - LucasArts SMUSH demuxer
20 - MP2 encoding via TwoLAME
22 - Silicon Graphics RLE 8-bit video decoder
23 - Silicon Graphics Motion Video Compressor 1 & 2 decoder
24 - Silicon Graphics Movie demuxer
25 - On2 AVC (Audio for Video) decoder
26 - support for decoding through DXVA2 in avconv
27 - libbs2b-based stereo-to-binaural audio filter
29 - display matrix export and rotation api
30 - drop avserver, it was unmaintained for years and largely broken
36 - support ID3v2 tags in ASF files
37 - reference-counting for AVFrame and AVPacket data
38 - avconv now fails when input options are used for output file
40 - avconv options -filter_script and -filter_complex_script, which allow a
41 filtergraph description to be read from a file
42 - uniform options syntax across all filters
45 - asetpts filter (same as setpts, but for audio)
46 - trim and atrim filters
47 - avconv -t and -ss (output-only) options are now sample-accurate when
49 - Matroska muxer can now put the index at the beginning of the file.
50 - avconv -deinterlace option removed, the yadif filter should be used instead
51 - Apple Intermediate Codec decoder
52 - Escape 130 video decoder
53 - support for slice multithreading in libavfilter
54 - VC-1 interlaced B-frame support
55 - support for WavPack muxing (raw and in Matroska)
57 - WavPack encoding through libwavpack
58 - Added the -n parameter to avconv
60 - when transcoding with avconv (i.e. not streamcopying), -ss is now accurate
61 even when used as an input option. Previous behavior can be restored with
62 the -noaccurate_seek option.
63 - avconv -t option can now be used for inputs, to limit the duration of
64 data read from an input file
65 - Voxware MetaSound decoder
67 - Error Resilient AAC syntax (ER AAC LC) decoding
68 - Low Delay AAC (ER AAC LD) decoding
69 - mux chapters in ASF files
70 - Opus in Ogg demuxing
71 - Enhanced Low Delay AAC (ER AAC ELD) decoding (no LD SBR support)
73 - HNM version 4 demuxer and video decoder
75 - raw HEVC, HEVC in MOV/MP4, HEVC in Matroska, HEVC in MPEG-TS demuxing
76 - remove avplay -vismv option, which has not worked for a long time
78 - setsar/setdar filters now support variables in ratio expressions
79 - dar variable in the scale filter now returns the actual DAR (i.e. a * sar)
81 - support for decoding through VDPAU in avconv (the -hwaccel option)
82 - remove mp3_header_(de)compress bitstream filters
83 - stereoscopic 3d metadata handling
84 - png standalone parser
85 - WebP encoding via libwebp
88 - Mirillis FIC video decoder
90 - compand audio filter
94 - av_basename and av_dirname
95 - adobe and limelight publisher authentication in RTMP
96 - VDPAU hardware acceleration through normal hwaccel
101 - ashowinfo audio filter
102 - 24-bit FLAC encoding
103 - audio volume filter
104 - deprecated the avconv -vol option. the volume filter is to be used instead.
105 - multi-channel ALAC encoding up to 7.1
106 - TAK demuxer, parser, and decoder
107 - adaptive frame-level multithreading for H.264
111 - metadata (INFO tag) support in WAV muxer
112 - support for building DLLs using MSVC
113 - remove avserver daemon mode
114 - support building on the Plan 9 operating system
115 - ffv1: support version 1.3
120 - XWD encoder and decoder
121 - Support for fragmentation in the mov/mp4 muxer
122 - ISMV (Smooth Streaming) muxer
123 - CDXL demuxer and decoder
124 - Apple ProRes encoder
125 - Sun Rasterfile Encoder
127 - ID3v2 attached pictures reading and writing
128 - WMA Lossless decoder
130 - RealAudio Lossless decoder
132 - drop support for avconv without libavfilter
133 - add libavresample audio conversion library
134 - audio filters support in libavfilter and avconv
138 - avprobe output is now standard INI or JSON. The old format can still
139 be used with -of old.
140 - Indeo Audio decoder
141 - channelsplit audio filter
142 - RTMPT protocol support
143 - iLBC encoding/decoding via libilbc
144 - Microsoft Screen 1 decoder
146 - audio channel mapping filter
147 - Microsoft ATC Screen decoder
149 - TechSmith Screen Codec 2 decoder
150 - AAC encoding via libfdk-aac
151 - Microsoft Expression Encoder Screen decoder
152 - RTMPS protocol support
153 - RTMPTS protocol support
154 - JPEG 2000 encoding support through OpenJPEG
155 - G.723.1 demuxer and decoder
156 - RTMPE protocol support
157 - RTMPTE protocol support
158 - Canopus Lossless Codec decoder
159 - avconv -shortest option is now per-output file,
160 -pass and -passlogfile are now per-output stream
162 - Microsoft Screen 2 decoder
163 - RTP depacketization of JPEG
164 - Smooth Streaming live segmenter muxer
165 - RTP packetization of JPEG
166 - Opus decoder and encoder using libopus
167 - remove -same_quant, it hasn't worked for years
168 - support for building with MSVC
179 - Automatic thread count based on detection number of (available) CPU cores
180 - Deprecate libpostproc. If desired, the switch --enable-postproc will
181 enable it but it may be removed in a later Libav release.
182 - rv34: frame-level multi-threading
183 - optimized iMDCT transform on x86 using SSE for for mpegaudiodec
189 - Flash Screen Video 2 decoder
190 - ffplay/ffprobe/ffserver renamed to avplay/avprobe/avserver
191 - ffmpeg deprecated, added avconv, which is almost the same for now, except
192 for a few incompatible changes in the options, which will hopefully make them
193 easier to use. The changes are:
194 * The options placement is now strictly enforced! While in theory the
195 options for ffmpeg should be given in [input options] -i INPUT [output
196 options] OUTPUT order, in practice it was possible to give output options
197 before the -i and it mostly worked. Except when it didn't - the behavior was
198 a bit inconsistent. In avconv, it is not possible to mix input and output
199 options. All non-global options are reset after an input or output filename.
200 * All per-file options are now truly per-file - they apply only to the next
201 input or output file and specifying different values for different files
202 will now work properly (notably -ss and -t options).
203 * All per-stream options are now truly per-stream - it is possible to
204 specify which stream(s) should a given option apply to. See the Stream
205 specifiers section in the avconv manual for details.
206 * In ffmpeg some options (like -newvideo/-newaudio/...) are irregular in the
207 sense that they're specified after the output filename instead of before,
208 like all other options. In avconv this irregularity is removed, all options
209 apply to the next input or output file.
210 * -newvideo/-newaudio/-newsubtitle options were removed. Not only were they
211 irregular and highly confusing, they were also redundant. In avconv the -map
212 option will create new streams in the output file and map input streams to
213 them. E.g. avconv -i INPUT -map 0 OUTPUT will create an output stream for
214 each stream in the first input file.
215 * The -map option now has slightly different and more powerful syntax:
216 + Colons (':') are used to separate file index/stream type/stream index
217 instead of dots. Comma (',') is used to separate the sync stream instead
218 of colon.. This is done for consistency with other options.
219 + It's possible to specify stream type. E.g. -map 0:a:2 creates an
220 output stream from the third input audio stream.
221 + Omitting the stream index now maps all the streams of the given type,
222 not just the first. E.g. -map 0:s creates output streams for all the
223 subtitle streams in the first input file.
224 + Since -map can now match multiple streams, negative mappings were
225 introduced. Negative mappings disable some streams from an already
226 defined map. E.g. '-map 0 -map -0:a:1' means 'create output streams for
227 all the stream in the first input file, except for the second audio
229 * There is a new option -c (or -codec) for choosing the decoder/encoder to
230 use, which allows to precisely specify target stream(s) consistently with
231 other options. E.g. -c:v lib264 sets the codec for all video streams, -c:a:0
232 libvorbis sets the codec for the first audio stream and -c copy copies all
233 the streams without reencoding. Old -vcodec/-acodec/-scodec options are now
235 * It is now possible to precisely specify which stream should an AVOption
236 apply to. E.g. -b:v:0 2M sets the bitrate for the first video stream, while
237 -b:a 128k sets the bitrate for all audio streams. Note that the old -ab 128k
238 syntax is deprecated and will stop working soon.
239 * -map_chapters now takes only an input file index and applies to the next
240 output file. This is consistent with how all the other options work.
241 * -map_metadata now takes only an input metadata specifier and applies to
242 the next output file. Output metadata specifier is now part of the option
243 name, similarly to the AVOptions/map/codec feature above.
244 * -metadata can now be used to set metadata on streams and chapters, e.g.
245 -metadata:s:1 language=eng sets the language of the first stream to 'eng'.
246 This made -vlang/-alang/-slang options redundant, so they were removed.
247 * -qscale option now uses stream specifiers and applies to all streams, not
248 just video. I.e. plain -qscale number would now apply to all streams. To get
249 the old behavior, use -qscale:v. Also there is now a shortcut -q for -qscale
250 and -aq is now an alias for -q:a.
251 * -vbsf/-absf/-sbsf options were removed and replaced by a -bsf option which
252 uses stream specifiers. Use -bsf:v/a/s instead of the old options.
253 * -itsscale option now uses stream specifiers, so its argument is only the
255 * -intra option was removed, use -g 0 for the same effect.
256 * -psnr option was removed, use -flags +psnr for the same effect.
257 * -vf option is now an alias to the new -filter option, which uses stream specifiers.
258 * -vframes/-aframes/-dframes options are now aliases to the new -frames option.
259 * -vtag/-atag/-stag options are now aliases to the new -tag option.
261 - Windows Media Image decoder
265 - libcdio-paranoia input device for audio CD grabbing
267 - Apple ProRes decoder
268 - CELT in Ogg demuxing
269 - VC-1 interlaced decoding
270 - lut, lutrgb, and lutyuv filters
273 - Speex encoding via libspeex
274 - 4:2:2 H.264 decoding support
275 - 4:2:2 and 4:4:4 H.264 encoding with libx264
276 - Pulseaudio input device
277 - replacement Indeo 3 decoder
278 - TLS/SSL and HTTPS protocol support
279 - AVOptions API rewritten and documented
280 - most of CODEC_FLAG2_*, some CODEC_FLAG_* and many codec-specific fields in
281 AVCodecContext deprecated. Codec private options should be used instead.
282 - Properly working defaults in libx264 wrapper, support for native presets.
283 - Encrypted OMA files support
284 - Discworld II BMV decoding support
286 - OS X Video Decoder Acceleration (VDA) support
287 - CRI ADX audio format muxer and demuxer
288 - Playstation Portable PMP format demuxer
289 - PCM format support in OMA demuxer
291 - Dxtory capture format decoder
292 - v410 QuickTime uncompressed 4:4:4 10-bit encoder and decoder
294 - Simple segmenting muxer
301 - E-AC-3 audio encoder
302 - ac3enc: add channel coupling support
303 - floating-point sample format support for (E-)AC-3, DCA, AAC, Vorbis decoders
304 - H.264/MPEG frame-level multithreading
305 - av_metadata_* functions renamed to av_dict_* and moved to libavutil
306 - 4:4:4 H.264 decoding support
307 - 10-bit H.264 optimizations for x86
308 - bump libswscale for recently reported ABI break
313 - VP8 frame-level multithreading
314 - NEON optimizations for VP8
315 - removed a lot of deprecated API cruft
316 - FFT and IMDCT optimizations for AVX (Sandy Bridge) processors
318 - SMPTE 302M AES3 audio decoder
319 - ffmpeg no longer quits after the 'q' key is pressed; use 'ctrl+c' instead
320 - 9bit and 10bit per sample support in the H.264 decoder
325 - WebM support in Matroska de/muxer
326 - low overhead Ogg muxing
328 - VP8 de/encoding via libvpx
329 - Demuxer for On2's IVF format
330 - Pictor/PC Paint decoder
332 - libfaad2 wrapper removed
333 - DTS-ES extension (XCh) decoding support
335 - RTSP tunneling over HTTP
336 - RTP depacketization of SVQ3
337 - -strict inofficial replaced by -strict unofficial
338 - ffplay -exitonkeydown and -exitonmousedown options added
339 - native GSM / GSM MS decoder
340 - RTP depacketization of QDM2
341 - ANSI/ASCII art playback system
342 - Lego Mindstorms RSO de/muxer
343 - SubRip subtitle file muxer and demuxer
344 - Chinese AVS encoding via libxavs
345 - ffprobe -show_packets option added
346 - RTP packetization of Theora and Vorbis
347 - RTP depacketization of MP4A-LATM
348 - RTP packetization and depacketization of VP8
350 - Apple HTTP Live Streaming demuxer
353 - G.722 ADPCM audio encoder/decoder
356 - frei0r wrapper filter
357 - change crop filter syntax to width:height:x:y
358 - make the crop filter accept parametric expressions
359 - make ffprobe accept AVFormatContext options
362 - Demuxer for Leitch/Harris' VR native stream format (LXF)
363 - RTP depacketization of the X-QT QuickTime format
364 - SAP (Session Announcement Protocol, RFC 2974) muxer and demuxer
366 - ffmpeg -crop* options removed
367 - transpose filter added
368 - ffmpeg -force_key_frames option added
369 - demuxer for receiving raw rtp:// URLs without an SDP description
370 - single stream LATM/LOAS decoder
371 - setpts filter added
372 - Win64 support for optimized x86 assembly functions
373 - MJPEG/AVI1 to JPEG/JFIF bitstream filter
374 - ASS subtitle encoder and decoder
375 - IEC 61937 encapsulation for E-AC-3, TrueHD, DTS-HD (for HDMI passthrough)
376 - overlay filter added
377 - rename aspect filter to setdar, and pixelaspect to setsar
379 - Mobotix .mxg demuxer
380 - frei0r source added
381 - hqdn3d filter added
382 - RTP depacketization of QCELP
384 - gradfun filter added
386 - replace the ocv_smooth filter with a more generic ocv filter
387 - Windows Televison (WTV) demuxer
388 - FFmpeg metadata format muxer and demuxer
389 - SubRip (srt) subtitle decoder
390 - floating-point AC-3 encoder added
392 - ffmpeg -copytb option added
394 - Wing Commander IV movies decoder added
396 - Bink version 'b' audio and video decoder
397 - Bitmap Brothers JV playback system
398 - Apple HTTP Live Streaming protocol handler
399 - sndio support for playback and record
400 - Linux framebuffer input device added
401 - Chronomaster DFA decoder
402 - Mobotix MxPEG decoder
403 - AAC encoding via libvo-aacenc
404 - AMR-WB encoding via libvo-amrwbenc
406 - fieldorder video filter added
411 - PB-frame decoding for H.263
412 - deprecated vhook subsystem removed
413 - deprecated old scaler removed
415 - Alpha channel scaler
417 - RTP packetization of H.263
418 - RTP packetization of AMR
419 - RTP depacketization of Vorbis
420 - CorePNG decoding support
421 - Cook multichannel decoding support
422 - introduced avlanguage helpers in libavformat
423 - 8088flex TMV demuxer and decoder
424 - per-stream language-tags extraction in asfdec
425 - V210 decoder and encoder
426 - remaining GPL parts in AC-3 decoder converted to LGPL
428 - SoX native format muxer and demuxer
429 - AMR-NB decoding/encoding, AMR-WB decoding via OpenCORE libraries
431 - Electronic Arts Madcow decoder
432 - DivX (XSUB) subtitle encoder
433 - nonfree libamr support for AMR-NB/WB decoding/encoding removed
434 - experimental AAC encoder
435 - RTP depacketization of ASF and RTSP from WMS servers
436 - RTMP support in libavformat
437 - noX handling for OPT_BOOL X options
439 - IEC-61937 compatible Muxer
441 - Bluray (PGS) subtitle decoder
442 - LPCM support in MPEG-TS (HDMV RID as found on Blu-ray disks)
444 - Core Audio Format demuxer
446 - MD STUDIO audio demuxer
447 - RF64 support in WAV demuxer
448 - MPEG-4 Audio Lossless Coding (ALS) decoder
449 - -formats option split into -formats, -codecs, -bsfs, and -protocols
451 - CDG demuxer and decoder
453 - Auravision Aura 1 and 2 decoders
454 - Deluxe Paint Animation playback system
456 - Adobe Filmstrip muxer and demuxer
457 - RTP depacketization of H.263
458 - Bink demuxer and audio/video decoders
459 - enable symbol versioning by default for linkers that support it
460 - IFF PBM/ILBM bitmap decoder
463 - RTP depacketization of AMR
469 - Kega Game Video (KGV1) decoder
470 - VorbisComment writing for FLAC, Ogg FLAC and Ogg Speex files
471 - RTP depacketization of Theora
472 - HTTP Digest authentication
473 - RTMP/RTMPT/RTMPS/RTMPE/RTMPTE protocol support via librtmp
474 - Psygnosis YOP demuxer and video decoder
475 - spectral extension support in the E-AC-3 decoder
476 - unsharp video filter
477 - RTP hinting in the mov/3gp/mp4 muxer
478 - Dirac in Ogg demuxing
479 - seek to keyframes in Ogg
480 - 4:2:2 and 4:4:4 Theora decoding
481 - 35% faster VP3/Theora decoding
482 - faster AAC decoding
483 - faster H.264 decoding
484 - RealAudio 1.0 (14.4K) encoder
489 - DV50 AKA DVCPRO50 encoder, decoder, muxer and demuxer
490 - TechSmith Camtasia (TSCC) video decoder
491 - IBM Ultimotion (ULTI) video decoder
492 - Sierra Online audio file demuxer and decoder
493 - Apple QuickDraw (qdrw) video decoder
494 - Creative ADPCM audio decoder (16 bits as well as 8 bits schemes)
495 - Electronic Arts Multimedia (WVE/UV2/etc.) file demuxer
496 - Miro VideoXL (VIXL) video decoder
497 - H.261 video encoder
499 - Nullsoft Video (NSV) file demuxer
500 - Shorten audio decoder
502 - Apple Lossless Audio Codec (ALAC) decoder
503 - Winnov WNV1 video decoder
504 - Autodesk Animator Studio Codec (AASC) decoder
505 - Indeo 2 video decoder
506 - Fraps FPS1 video decoder
507 - Snow video encoder/decoder
508 - Sonic audio encoder/decoder
509 - Vorbis audio decoder
510 - Macromedia ADPCM decoder
511 - Duck TrueMotion 2 video decoder
512 - support for decoding FLX and DTA extensions in FLIC files
513 - H.264 custom quantization matrices support
514 - ffserver fixed, it should now be usable again
516 - Real Cooker audio decoder
517 - TrueSpeech audio decoder
518 - WMA2 audio decoder fixed, now all files should play correctly
519 - RealAudio 14.4 and 28.8 decoders fixed
521 - build system improvements
522 - tabs and trailing whitespace removed from the codebase
523 - CamStudio video decoder
524 - AIFF/AIFF-C audio format, encoding and decoding
525 - ADTS AAC file reading and writing
526 - Creative VOC file reading and writing
527 - American Laser Games multimedia (*.mm) playback system
528 - Zip Motion Blocks Video decoder
529 - improved Theora/VP3 decoder
530 - True Audio (TTA) decoder
531 - AVS demuxer and video decoder
533 - Smacker demuxer and decoder
534 - NuppelVideo/MythTV demuxer and RTjpeg decoder
536 - MPEG-2 intra VLC support
537 - MPEG-2 4:2:2 encoder
538 - Flash Screen Video decoder
540 - Chinese AVS decoder
543 - VC-1/WMV3/WMV9 video decoder
546 - VMware video decoder
549 - WavPack lossless audio decoder
550 - Targa (.TGA) picture decoder
551 - Vorbis audio encoder
552 - Delphine Software .cin demuxer/audio and video decoder
553 - Tiertex .seq demuxer/video decoder
555 - TIFF picture encoder and decoder
556 - GIF picture decoder
557 - Intel Music Coder decoder
558 - Zip Motion Blocks Video encoder
560 - Flash Screen Video encoder
561 - Theora encoding via libtheora
564 - GSM-MS encoder and decoder
566 - DXA demuxer and decoder
568 - Gamecube movie (.THP) playback system
569 - Blackfin optimizations
570 - Interplay C93 demuxer and video decoder
571 - Bethsoft VID demuxer and video decoder
574 - V.Flash PTX decoder
575 - RoQ muxer, RoQ audio encoder
576 - Renderware TXD demuxer and decoder
577 - extern C declarations for C++ removed from headers
578 - sws_flags command line option
582 - OS/2 support removed and restored again
585 - additional SPARC (VIS) optimizations
587 - slice-based parallel H.264 decoding
588 - Monkey's Audio demuxer and decoder
589 - AMV audio and video decoder
591 - H.264 PAFF decoding
592 - Nellymoser ASAO decoder
593 - Beam Software SIFF demuxer and decoder
594 - libvorbis Vorbis decoding removed in favor of native decoder
595 - IntraX8 (J-Frame) subdecoder for WMV2 and VC-1
596 - Ogg (Theora, Vorbis and FLAC) muxer
597 - The "device" muxers and demuxers are now in a new libavdevice library
598 - PC Paintbrush PCX decoder
599 - Sun Rasterfile decoder
600 - TechnoTrend PVA demuxer
601 - Linux Media Labs MPEG-4 (LMLM4) demuxer
602 - AVM2 (Flash 9) SWF muxer
603 - QT variant of IMA ADPCM encoder
605 - iPod/iPhone compatible mp4 muxer
607 - MSN TCP Webcam stream demuxer
608 - RL2 demuxer / decoder
611 - non-recursive Makefiles
613 - MAXIS EA XA (.xa) demuxer / decoder
617 - Electronic Arts CMV decoder
618 - Motion Pixels Video decoder
619 - Motion Pixels MVI demuxer
620 - removed animated GIF decoder/demuxer
621 - D-Cinema audio muxer
622 - Electronic Arts TGV decoder
623 - Apple Lossless Audio Codec (ALAC) encoder
625 - floating point PCM encoder/decoder
627 - DV100 AKA DVCPRO HD decoder and demuxer
628 - E-AC-3 support added to AC-3 decoder
629 - Nellymoser ASAO encoder
630 - ASS and SSA demuxer and muxer
631 - liba52 wrapper removed
632 - SVQ3 watermark decoding support
633 - Speex decoding via libspeex
634 - Electronic Arts TGQ decoder
636 - QCELP / PureVoice decoder
638 - hybrid WavPack support
639 - R3D REDCODE demuxer
640 - ALSA support for playback and record
641 - Electronic Arts TQI decoder
642 - OpenJPEG based JPEG 2000 decoder
643 - NC (NC4600) camera file demuxer
644 - Gopher client support
646 - generic metadata API
651 - DV encoder, DV muxer
652 - Microsoft RLE video decoder
653 - Microsoft Video-1 decoder
654 - Apple Animation (RLE) decoder
655 - Apple Graphics (SMC) decoder
656 - Apple Video (RPZA) decoder
658 - Sega FILM (CPK) file demuxer
659 - Westwood multimedia support (VQA & AUD files)
660 - Id Quake II CIN playback support
662 - FLIC playback support
663 - RealVideo 2.0 (RV20) decoder
664 - Duck TrueMotion v1 (DUCK) video decoder
665 - Sierra VMD demuxer and video decoder
666 - MSZH and ZLIB decoder support
670 - rate distortion optimal cbp support
671 - rate distorted optimal ac prediction for MPEG-4
672 - rate distorted optimal lambda->qp support
673 - AAC encoding with libfaac
674 - Sunplus JPEG codec (SP5X) support
675 - use Lagrange multipler instead of QP for ratecontrol
676 - Theora/VP3 decoding support
677 - XA and ADX ADPCM codecs
678 - export MPEG-2 active display area / pan scan
679 - Add support for configuring with IBM XLC
680 - floating point AAN DCT
681 - initial support for zygo video (not complete)
683 - new audio/video parser API
685 - av_read_frame() and av_seek_frame() support
686 - missing last frame fixes
687 - seek by mouse in ffplay
688 - noise reduction of DCT coefficients
689 - H.263 OBMC & 4MV support
690 - H.263 alternative inter vlc support
692 - H.263 slice structured mode
693 - interlaced DCT support for MPEG-2 encoding
694 - stuffing to stay above min_bitrate
695 - MB type & QP visualization
696 - frame stepping for ffplay
697 - interlaced motion estimation
698 - alternate scantable support
699 - SVCD scan offset support
702 - quantizer noise shaping
703 - G.726 ADPCM audio codec
705 - multithreaded/SMP motion estimation
706 - multithreaded/SMP encoding for MPEG-1/MPEG-2/MPEG-4/H.263
707 - multithreaded/SMP decoding for MPEG-2
709 - Metrowerks CodeWarrior suppport
710 - H.263+ custom pcf support
711 - nicer output for 'ffmpeg -formats'
713 - SGI image format, encoding and decoding
714 - H.264 loop filter support
715 - H.264 CABAC support
716 - nicer looking arrows for the motion vector visualization
717 - improved VCD support
718 - audio timestamp drift compensation
719 - MPEG-2 YUV 422/444 support
720 - polyphase kaiser windowed sinc and blackman nuttall windowed sinc audio resample
721 - better image scaling
723 - correctly interleave packets during encoding
724 - VIS optimized motion compensation
725 - intra_dc_precision>0 encoding support
726 - support reuse of motion vectors/MB types/field select values of the source video
727 - more accurate deblock filter
729 - many optimizations and bugfixes
730 - FunCom ISS audio file demuxer and according ADPCM decoding
735 - MPEG-2 video encoding (Michael)
736 - Id RoQ playback subsystem (Mike Melanson and Tim Ferguson)
737 - Wing Commander III Movie (.mve) file playback subsystem (Mike Melanson
739 - Xan DPCM audio decoder (Mario Brito)
740 - Interplay MVE playback subsystem (Mike Melanson)
741 - Duck DK3 and DK4 ADPCM audio decoders (Mike Melanson)
746 - RealAudio 1.0 (14_4) and 2.0 (28_8) native decoders. Author unknown, code from mplayerhq
747 (originally from public domain player for Amiga at http://www.honeypot.net/audio)
748 - current version now also compiles with older GCC (Fabrice)
749 - 4X multimedia playback system including 4xm file demuxer (Mike
750 Melanson), and 4X video and audio codecs (Michael)
751 - Creative YUV (CYUV) decoder (Mike Melanson)
752 - FFV1 codec (our very simple lossless intra only codec, compresses much better
753 than HuffYUV) (Michael)
754 - ASV1 (Asus), H.264, Intel indeo3 codecs have been added (various)
755 - tiny PNG encoder and decoder, tiny GIF decoder, PAM decoder (PPM with
756 alpha support), JPEG YUV colorspace support. (Fabrice Bellard)
757 - ffplay has been replaced with a newer version which uses SDL (optionally)
758 for multiplatform support (Fabrice)
759 - Sorenson Version 3 codec (SVQ3) support has been added (decoding only) - donated
761 - AMR format has been added (Johannes Carlsson)
762 - 3GP support has been added (Johannes Carlsson)
763 - VP3 codec has been added (Mike Melanson)
764 - more MPEG-1/2 fixes
765 - better multiplatform support, MS Visual Studio fixes (various)
766 - AltiVec optimizations (Magnus Damn and others)
767 - SH4 processor support has been added (BERO)
768 - new public interfaces (avcodec_get_pix_fmt) (Roman Shaposhnick)
769 - VOB streaming support (Brian Foley)
770 - better MP3 autodetection (Andriy Rysin)
771 - qpel encoding (Michael)
772 - 4mv+b frames encoding finally fixed (Michael)
773 - chroma ME (Michael)
774 - 5 comparison functions for ME (Michael)
775 - B-frame encoding speedup (Michael)
776 - WMV2 codec (unfinished - Michael)
777 - user specified diamond size for EPZS (Michael)
778 - Playstation STR playback subsystem, still experimental (Mike and Michael)
779 - ASV2 codec (Michael)
780 - CLJR decoder (Alex)
782 .. And lots more new enhancements and fixes.
787 - completely new integer only MPEG audio layer 1/2/3 decoder rewritten
789 - Recoded DCT and motion vector search with gcc (no longer depends on nasm)
790 - fix quantization bug in AC3 encoder
791 - added PCM codecs and format. Corrected WAV/AVI/ASF PCM issues
792 - added prototype ffplay program
793 - added GOB header parsing on H.263/H.263+ decoder (Juanjo)
794 - bug fix on MCBPC tables of H.263 (Juanjo)
795 - bug fix on DC coefficients of H.263 (Juanjo)
796 - added Advanced Prediction Mode on H.263/H.263+ decoder (Juanjo)
797 - now we can decode H.263 streams found in QuickTime files (Juanjo)
798 - now we can decode H.263 streams found in VIVO v1 files(Juanjo)
799 - preliminary RTP "friendly" mode for H.263/H.263+ coding. (Juanjo)
800 - added GOB header for H.263/H.263+ coding on RTP mode (Juanjo)
801 - now H.263 picture size is returned on the first decoded frame (Juanjo)
802 - added first regression tests
803 - added MPEG-2 TS demuxer
804 - new demux API for libav
805 - more accurate and faster IDCT (Michael)
806 - faster and entropy-controlled motion search (Michael)
807 - two pass video encoding (Michael)
808 - new video rate control (Michael)
809 - added MSMPEG4V1, MSMPEGV2 and WMV1 support (Michael)
810 - great performance improvement of video encoders and decoders (Michael)
811 - new and faster bit readers and vlc parsers (Michael)
812 - high quality encoding mode: tries all macroblock/VLC types (Michael)
813 - added DV video decoder
814 - preliminary RTP/RTSP support in ffserver and libavformat
815 - H.263+ AIC decoding/encoding support (Juanjo)
816 - VCD MPEG-PS mode (Juanjo)
817 - PSNR stuff (Juanjo)
818 - simple stats output (Juanjo)
819 - 16-bit and 15-bit RGB/BGR/GBR support (Bisqwit)
824 - some header fixes (Zdenek Kabelac <kabi at informatics.muni.cz>)
825 - many MMX optimizations (Nick Kurshev <nickols_k at mail.ru>)
826 - added configure system (actually a small shell script)
827 - added MPEG audio layer 1/2/3 decoding using LGPL'ed mpglib by
828 Michael Hipp (temporary solution - waiting for integer only
830 - fixed VIDIOCSYNC interrupt
831 - added Intel H.263 decoding support ('I263' AVI fourCC)
832 - added Real Video 1.0 decoding (needs further testing)
833 - simplified image formats again. Added PGM format (=grey
834 pgm). Renamed old PGM to PGMYUV.
835 - fixed msmpeg4 slice issues (tell me if you still find problems)
836 - fixed OpenDivX bugs with newer versions (added VOL header decoding)
837 - added support for MPlayer interface
838 - added macroblock skip optimization
839 - added MJPEG decoder
840 - added mmx/mmxext IDCT from libmpeg2
841 - added pgmyuvpipe, ppm, and ppm_pipe formats (original patch by Celer
842 <celer at shell.scrypt.net>)
843 - added pixel format conversion layer (e.g. for MJPEG or PPM)
844 - added deinterlacing option
846 - MPEG-4 vol header fixes (Jonathan Marsden <snmjbm at pacbell.net>)
847 - ARM optimizations (Lionel Ulmer <lionel.ulmer at free.fr>).
848 - Windows porting of file converter
849 - added MJPEG raw format (input/ouput)
850 - added JPEG image format support (input/output)
855 - fixed some std header definitions (Bjorn Lindgren
856 <bjorn.e.lindgren at telia.com>).
857 - added MPEG demuxer (MPEG-1 and 2 compatible).
859 - added prototype RM demuxer
860 - added AC3 decoding (done with libac3 by Aaron Holtzman)
861 - added decoding codec parameter guessing (.e.g. for MPEG, because the
862 header does not include them)
863 - fixed header generation in MPEG-1, AVI and ASF muxer: wmplayer can now
864 play them (only tested video)
865 - fixed H.263 white bug
866 - fixed phase rounding in img resample filter
867 - add MMX code for polyphase img resample filter
868 - added CPU autodetection
869 - added generic title/author/copyright/comment string handling (ASF and RM
871 - added SWF demux to extract MP3 track (not usable yet because no MP3
873 - added fractional frame rate support
874 - codecs are no longer searched by read_header() (should fix ffserver
880 - BGR24 patch (initial patch by Jeroen Vreeken <pe1rxq at amsat.org>)
881 - fixed raw yuv output
882 - added motion rounding support in MPEG-4
883 - fixed motion bug rounding in MSMPEG4
884 - added B-frame handling in video core
885 - added full MPEG-1 decoding support
886 - added partial (frame only) MPEG-2 support
887 - changed the FOURCC code for H.263 to "U263" to be able to see the
888 +AVI/H.263 file with the UB Video H.263+ decoder. MPlayer works with
889 this +codec ;) (JuanJo).
890 - Halfpel motion estimation after MB type selection (JuanJo)
891 - added pgm and .Y.U.V output format
892 - suppressed 'img:' protocol. Simply use: /tmp/test%d.[pgm|Y] as input or
894 - added pgmpipe I/O format (original patch from Martin Aumueller
895 <lists at reserv.at>, but changed completely since we use a format
896 instead of a protocol)
901 - added H.263/MPEG-4/MSMPEG4 decoding support. MPEG-4 decoding support
902 (for OpenDivX) is almost complete: 8x8 MVs and rounding are
903 missing. MSMPEG4 support is complete.
904 - added prototype MPEG-1 decoder. Only I- and P-frames handled yet (it
905 can decode ffmpeg MPEGs :-)).
906 - added libavcodec API documentation (see apiexample.c).
907 - fixed image polyphase bug (the bottom of some images could be
909 - added support for non clipped motion vectors (decoding only)
910 and image sizes non-multiple of 16
911 - added support for AC prediction (decoding only)
912 - added file overwrite confirmation (can be disabled with -y)
913 - added custom size picture to H.263 using H.263+ (Juanjo)
918 - added MSMPEG4 (aka DivX) compatible encoder. Changed default codec
919 of AVI and ASF to DIV3.
920 - added -me option to set motion estimation method
921 (default=log). suppressed redundant -hq option.
922 - added options -acodec and -vcodec to force a given codec (useful for
925 - improved dct_quantize speed
926 - factorized some motion estimation code
931 - removing grab code from ffserver and moved it to ffmpeg. Added
932 multistream support to ffmpeg.
933 - added timeshifting support for live feeds (option ?date=xxx in the
935 - added high quality image resize code with polyphase filter (need
936 mmx/see optimization). Enable multiple image size support in ffserver.
937 - added multi live feed support in ffserver
938 - suppressed master feature from ffserver (it should be done with an
939 external program which opens the .ffm url and writes it to another
941 - added preliminary support for video stream parsing (WAV and AVI half
942 done). Added proper support for audio/video file conversion in
944 - added preliminary support for video file sending from ffserver
945 - redesigning I/O subsystem: now using URL based input and output
947 - added WAV format support
948 - added "tty user interface" to ffmpeg to stop grabbing gracefully
949 - added MMX/SSE optimizations to SAD (Sums of Absolutes Differences)
950 (Juan J. Sierralta P. a.k.a. "Juanjo" <juanjo at atmlab.utfsm.cl>)
951 - added MMX DCT from mpeg2_movie 1.5 (Juanjo)
952 - added new motion estimation algorithms, log and phods (Juanjo)
953 - changed directories: libav for format handling, libavcodec for
959 - added stereo in MPEG audio encoder
964 - added 'high quality' mode which use motion vectors. It can be used in
965 real time at low resolution.
966 - fixed rounding problems which caused quality problems at high
967 bitrates and large GOP size
970 version 0.3.2: small fixes
976 version 0.3.1: added avi/divx support
979 - added MPEG-4 codec compatible with OpenDivX. It is based on the H.263 codec
980 - added sound for flash format (not tested)
983 version 0.3: initial public release