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
21 - support ID3v2 tags in ASF files
22 - reference-counting for AVFrame and AVPacket data
23 - avconv now fails when input options are used for output file
25 - avconv options -filter_script and -filter_complex_script, which allow a
26 filtergraph description to be read from a file
27 - uniform options syntax across all filters
30 - asetpts filter (same as setpts, but for audio)
31 - trim and atrim filters
32 - avconv -t and -ss (output-only) options are now sample-accurate when
34 - Matroska muxer can now put the index at the beginning of the file.
35 - avconv -deinterlace option removed, the yadif filter should be used instead
36 - Apple Intermediate Codec decoder
37 - Escape 130 video decoder
38 - support for slice multithreading in libavfilter
39 - VC-1 interlaced B-frame support
40 - support for WavPack muxing (raw and in Matroska)
42 - WavPack encoding through libwavpack
43 - Added the -n parameter to avconv
45 - when transcoding with avconv (i.e. not streamcopying), -ss is now accurate
46 even when used as an input option. Previous behavior can be restored with
47 the -noaccurate_seek option.
48 - avconv -t option can now be used for inputs, to limit the duration of
49 data read from an input file
50 - Voxware MetaSound decoder
52 - Error Resilient AAC syntax (ER AAC LC) decoding
53 - Low Delay AAC (ER AAC LD) decoding
54 - mux chapters in ASF files
55 - Opus in Ogg demuxing
56 - Enhanced Low Delay AAC (ER AAC ELD) decoding (no LD SBR support)
58 - HNM version 4 demuxer and video decoder
60 - raw HEVC, HEVC in MOV/MP4, HEVC in Matroska, HEVC in MPEG-TS demuxing
61 - remove avplay -vismv option, which has not worked for a long time
63 - setsar/setdar filters now support variables in ratio expressions
64 - dar variable in the scale filter now returns the actual DAR (i.e. a * sar)
66 - support for decoding through VDPAU in avconv (the -hwaccel option)
67 - remove mp3_header_(de)compress bitstream filters
68 - stereoscopic 3d metadata handling
69 - png standalone parser
70 - WebP encoding via libwebp
73 - Mirillis FIC video decoder
75 - compand audio filter
79 - av_basename and av_dirname
80 - adobe and limelight publisher authentication in RTMP
81 - VDPAU hardware acceleration through normal hwaccel
86 - ashowinfo audio filter
87 - 24-bit FLAC encoding
89 - deprecated the avconv -vol option. the volume filter is to be used instead.
90 - multi-channel ALAC encoding up to 7.1
91 - TAK demuxer, parser, and decoder
92 - adaptive frame-level multithreading for H.264
96 - metadata (INFO tag) support in WAV muxer
97 - support for building DLLs using MSVC
98 - remove avserver daemon mode
99 - support building on the Plan 9 operating system
100 - ffv1: support version 1.3
105 - XWD encoder and decoder
106 - Support for fragmentation in the mov/mp4 muxer
107 - ISMV (Smooth Streaming) muxer
108 - CDXL demuxer and decoder
109 - Apple ProRes encoder
110 - Sun Rasterfile Encoder
112 - ID3v2 attached pictures reading and writing
113 - WMA Lossless decoder
115 - RealAudio Lossless decoder
117 - drop support for avconv without libavfilter
118 - add libavresample audio conversion library
119 - audio filters support in libavfilter and avconv
123 - avprobe output is now standard INI or JSON. The old format can still
124 be used with -of old.
125 - Indeo Audio decoder
126 - channelsplit audio filter
127 - RTMPT protocol support
128 - iLBC encoding/decoding via libilbc
129 - Microsoft Screen 1 decoder
131 - audio channel mapping filter
132 - Microsoft ATC Screen decoder
134 - TechSmith Screen Codec 2 decoder
135 - AAC encoding via libfdk-aac
136 - Microsoft Expression Encoder Screen decoder
137 - RTMPS protocol support
138 - RTMPTS protocol support
139 - JPEG 2000 encoding support through OpenJPEG
140 - G.723.1 demuxer and decoder
141 - RTMPE protocol support
142 - RTMPTE protocol support
143 - Canopus Lossless Codec decoder
144 - avconv -shortest option is now per-output file,
145 -pass and -passlogfile are now per-output stream
147 - Microsoft Screen 2 decoder
148 - RTP depacketization of JPEG
149 - Smooth Streaming live segmenter muxer
150 - RTP packetization of JPEG
151 - Opus decoder and encoder using libopus
152 - remove -same_quant, it hasn't worked for years
153 - support for building with MSVC
164 - Automatic thread count based on detection number of (available) CPU cores
165 - Deprecate libpostproc. If desired, the switch --enable-postproc will
166 enable it but it may be removed in a later Libav release.
167 - rv34: frame-level multi-threading
168 - optimized iMDCT transform on x86 using SSE for for mpegaudiodec
174 - Flash Screen Video 2 decoder
175 - ffplay/ffprobe/ffserver renamed to avplay/avprobe/avserver
176 - ffmpeg deprecated, added avconv, which is almost the same for now, except
177 for a few incompatible changes in the options, which will hopefully make them
178 easier to use. The changes are:
179 * The options placement is now strictly enforced! While in theory the
180 options for ffmpeg should be given in [input options] -i INPUT [output
181 options] OUTPUT order, in practice it was possible to give output options
182 before the -i and it mostly worked. Except when it didn't - the behavior was
183 a bit inconsistent. In avconv, it is not possible to mix input and output
184 options. All non-global options are reset after an input or output filename.
185 * All per-file options are now truly per-file - they apply only to the next
186 input or output file and specifying different values for different files
187 will now work properly (notably -ss and -t options).
188 * All per-stream options are now truly per-stream - it is possible to
189 specify which stream(s) should a given option apply to. See the Stream
190 specifiers section in the avconv manual for details.
191 * In ffmpeg some options (like -newvideo/-newaudio/...) are irregular in the
192 sense that they're specified after the output filename instead of before,
193 like all other options. In avconv this irregularity is removed, all options
194 apply to the next input or output file.
195 * -newvideo/-newaudio/-newsubtitle options were removed. Not only were they
196 irregular and highly confusing, they were also redundant. In avconv the -map
197 option will create new streams in the output file and map input streams to
198 them. E.g. avconv -i INPUT -map 0 OUTPUT will create an output stream for
199 each stream in the first input file.
200 * The -map option now has slightly different and more powerful syntax:
201 + Colons (':') are used to separate file index/stream type/stream index
202 instead of dots. Comma (',') is used to separate the sync stream instead
203 of colon.. This is done for consistency with other options.
204 + It's possible to specify stream type. E.g. -map 0:a:2 creates an
205 output stream from the third input audio stream.
206 + Omitting the stream index now maps all the streams of the given type,
207 not just the first. E.g. -map 0:s creates output streams for all the
208 subtitle streams in the first input file.
209 + Since -map can now match multiple streams, negative mappings were
210 introduced. Negative mappings disable some streams from an already
211 defined map. E.g. '-map 0 -map -0:a:1' means 'create output streams for
212 all the stream in the first input file, except for the second audio
214 * There is a new option -c (or -codec) for choosing the decoder/encoder to
215 use, which allows to precisely specify target stream(s) consistently with
216 other options. E.g. -c:v lib264 sets the codec for all video streams, -c:a:0
217 libvorbis sets the codec for the first audio stream and -c copy copies all
218 the streams without reencoding. Old -vcodec/-acodec/-scodec options are now
220 * It is now possible to precisely specify which stream should an AVOption
221 apply to. E.g. -b:v:0 2M sets the bitrate for the first video stream, while
222 -b:a 128k sets the bitrate for all audio streams. Note that the old -ab 128k
223 syntax is deprecated and will stop working soon.
224 * -map_chapters now takes only an input file index and applies to the next
225 output file. This is consistent with how all the other options work.
226 * -map_metadata now takes only an input metadata specifier and applies to
227 the next output file. Output metadata specifier is now part of the option
228 name, similarly to the AVOptions/map/codec feature above.
229 * -metadata can now be used to set metadata on streams and chapters, e.g.
230 -metadata:s:1 language=eng sets the language of the first stream to 'eng'.
231 This made -vlang/-alang/-slang options redundant, so they were removed.
232 * -qscale option now uses stream specifiers and applies to all streams, not
233 just video. I.e. plain -qscale number would now apply to all streams. To get
234 the old behavior, use -qscale:v. Also there is now a shortcut -q for -qscale
235 and -aq is now an alias for -q:a.
236 * -vbsf/-absf/-sbsf options were removed and replaced by a -bsf option which
237 uses stream specifiers. Use -bsf:v/a/s instead of the old options.
238 * -itsscale option now uses stream specifiers, so its argument is only the
240 * -intra option was removed, use -g 0 for the same effect.
241 * -psnr option was removed, use -flags +psnr for the same effect.
242 * -vf option is now an alias to the new -filter option, which uses stream specifiers.
243 * -vframes/-aframes/-dframes options are now aliases to the new -frames option.
244 * -vtag/-atag/-stag options are now aliases to the new -tag option.
246 - Windows Media Image decoder
250 - libcdio-paranoia input device for audio CD grabbing
252 - Apple ProRes decoder
253 - CELT in Ogg demuxing
254 - VC-1 interlaced decoding
255 - lut, lutrgb, and lutyuv filters
258 - Speex encoding via libspeex
259 - 4:2:2 H.264 decoding support
260 - 4:2:2 and 4:4:4 H.264 encoding with libx264
261 - Pulseaudio input device
262 - replacement Indeo 3 decoder
263 - TLS/SSL and HTTPS protocol support
264 - AVOptions API rewritten and documented
265 - most of CODEC_FLAG2_*, some CODEC_FLAG_* and many codec-specific fields in
266 AVCodecContext deprecated. Codec private options should be used instead.
267 - Properly working defaults in libx264 wrapper, support for native presets.
268 - Encrypted OMA files support
269 - Discworld II BMV decoding support
271 - OS X Video Decoder Acceleration (VDA) support
272 - CRI ADX audio format muxer and demuxer
273 - Playstation Portable PMP format demuxer
274 - PCM format support in OMA demuxer
276 - Dxtory capture format decoder
277 - v410 QuickTime uncompressed 4:4:4 10-bit encoder and decoder
279 - Simple segmenting muxer
286 - E-AC-3 audio encoder
287 - ac3enc: add channel coupling support
288 - floating-point sample format support for (E-)AC-3, DCA, AAC, Vorbis decoders
289 - H.264/MPEG frame-level multithreading
290 - av_metadata_* functions renamed to av_dict_* and moved to libavutil
291 - 4:4:4 H.264 decoding support
292 - 10-bit H.264 optimizations for x86
293 - bump libswscale for recently reported ABI break
298 - VP8 frame-level multithreading
299 - NEON optimizations for VP8
300 - removed a lot of deprecated API cruft
301 - FFT and IMDCT optimizations for AVX (Sandy Bridge) processors
303 - SMPTE 302M AES3 audio decoder
304 - ffmpeg no longer quits after the 'q' key is pressed; use 'ctrl+c' instead
305 - 9bit and 10bit per sample support in the H.264 decoder
310 - WebM support in Matroska de/muxer
311 - low overhead Ogg muxing
313 - VP8 de/encoding via libvpx
314 - Demuxer for On2's IVF format
315 - Pictor/PC Paint decoder
317 - libfaad2 wrapper removed
318 - DTS-ES extension (XCh) decoding support
320 - RTSP tunneling over HTTP
321 - RTP depacketization of SVQ3
322 - -strict inofficial replaced by -strict unofficial
323 - ffplay -exitonkeydown and -exitonmousedown options added
324 - native GSM / GSM MS decoder
325 - RTP depacketization of QDM2
326 - ANSI/ASCII art playback system
327 - Lego Mindstorms RSO de/muxer
328 - SubRip subtitle file muxer and demuxer
329 - Chinese AVS encoding via libxavs
330 - ffprobe -show_packets option added
331 - RTP packetization of Theora and Vorbis
332 - RTP depacketization of MP4A-LATM
333 - RTP packetization and depacketization of VP8
335 - Apple HTTP Live Streaming demuxer
338 - G.722 ADPCM audio encoder/decoder
341 - frei0r wrapper filter
342 - change crop filter syntax to width:height:x:y
343 - make the crop filter accept parametric expressions
344 - make ffprobe accept AVFormatContext options
347 - Demuxer for Leitch/Harris' VR native stream format (LXF)
348 - RTP depacketization of the X-QT QuickTime format
349 - SAP (Session Announcement Protocol, RFC 2974) muxer and demuxer
351 - ffmpeg -crop* options removed
352 - transpose filter added
353 - ffmpeg -force_key_frames option added
354 - demuxer for receiving raw rtp:// URLs without an SDP description
355 - single stream LATM/LOAS decoder
356 - setpts filter added
357 - Win64 support for optimized x86 assembly functions
358 - MJPEG/AVI1 to JPEG/JFIF bitstream filter
359 - ASS subtitle encoder and decoder
360 - IEC 61937 encapsulation for E-AC-3, TrueHD, DTS-HD (for HDMI passthrough)
361 - overlay filter added
362 - rename aspect filter to setdar, and pixelaspect to setsar
364 - Mobotix .mxg demuxer
365 - frei0r source added
366 - hqdn3d filter added
367 - RTP depacketization of QCELP
369 - gradfun filter added
371 - replace the ocv_smooth filter with a more generic ocv filter
372 - Windows Televison (WTV) demuxer
373 - FFmpeg metadata format muxer and demuxer
374 - SubRip (srt) subtitle decoder
375 - floating-point AC-3 encoder added
377 - ffmpeg -copytb option added
379 - Wing Commander IV movies decoder added
381 - Bink version 'b' audio and video decoder
382 - Bitmap Brothers JV playback system
383 - Apple HTTP Live Streaming protocol handler
384 - sndio support for playback and record
385 - Linux framebuffer input device added
386 - Chronomaster DFA decoder
387 - Mobotix MxPEG decoder
388 - AAC encoding via libvo-aacenc
389 - AMR-WB encoding via libvo-amrwbenc
391 - fieldorder video filter added
396 - PB-frame decoding for H.263
397 - deprecated vhook subsystem removed
398 - deprecated old scaler removed
400 - Alpha channel scaler
402 - RTP packetization of H.263
403 - RTP packetization of AMR
404 - RTP depacketization of Vorbis
405 - CorePNG decoding support
406 - Cook multichannel decoding support
407 - introduced avlanguage helpers in libavformat
408 - 8088flex TMV demuxer and decoder
409 - per-stream language-tags extraction in asfdec
410 - V210 decoder and encoder
411 - remaining GPL parts in AC-3 decoder converted to LGPL
413 - SoX native format muxer and demuxer
414 - AMR-NB decoding/encoding, AMR-WB decoding via OpenCORE libraries
416 - Electronic Arts Madcow decoder
417 - DivX (XSUB) subtitle encoder
418 - nonfree libamr support for AMR-NB/WB decoding/encoding removed
419 - experimental AAC encoder
420 - RTP depacketization of ASF and RTSP from WMS servers
421 - RTMP support in libavformat
422 - noX handling for OPT_BOOL X options
424 - IEC-61937 compatible Muxer
426 - Bluray (PGS) subtitle decoder
427 - LPCM support in MPEG-TS (HDMV RID as found on Blu-ray disks)
429 - Core Audio Format demuxer
431 - MD STUDIO audio demuxer
432 - RF64 support in WAV demuxer
433 - MPEG-4 Audio Lossless Coding (ALS) decoder
434 - -formats option split into -formats, -codecs, -bsfs, and -protocols
436 - CDG demuxer and decoder
438 - Auravision Aura 1 and 2 decoders
439 - Deluxe Paint Animation playback system
441 - Adobe Filmstrip muxer and demuxer
442 - RTP depacketization of H.263
443 - Bink demuxer and audio/video decoders
444 - enable symbol versioning by default for linkers that support it
445 - IFF PBM/ILBM bitmap decoder
448 - RTP depacketization of AMR
454 - Kega Game Video (KGV1) decoder
455 - VorbisComment writing for FLAC, Ogg FLAC and Ogg Speex files
456 - RTP depacketization of Theora
457 - HTTP Digest authentication
458 - RTMP/RTMPT/RTMPS/RTMPE/RTMPTE protocol support via librtmp
459 - Psygnosis YOP demuxer and video decoder
460 - spectral extension support in the E-AC-3 decoder
461 - unsharp video filter
462 - RTP hinting in the mov/3gp/mp4 muxer
463 - Dirac in Ogg demuxing
464 - seek to keyframes in Ogg
465 - 4:2:2 and 4:4:4 Theora decoding
466 - 35% faster VP3/Theora decoding
467 - faster AAC decoding
468 - faster H.264 decoding
469 - RealAudio 1.0 (14.4K) encoder
474 - DV50 AKA DVCPRO50 encoder, decoder, muxer and demuxer
475 - TechSmith Camtasia (TSCC) video decoder
476 - IBM Ultimotion (ULTI) video decoder
477 - Sierra Online audio file demuxer and decoder
478 - Apple QuickDraw (qdrw) video decoder
479 - Creative ADPCM audio decoder (16 bits as well as 8 bits schemes)
480 - Electronic Arts Multimedia (WVE/UV2/etc.) file demuxer
481 - Miro VideoXL (VIXL) video decoder
482 - H.261 video encoder
484 - Nullsoft Video (NSV) file demuxer
485 - Shorten audio decoder
487 - Apple Lossless Audio Codec (ALAC) decoder
488 - Winnov WNV1 video decoder
489 - Autodesk Animator Studio Codec (AASC) decoder
490 - Indeo 2 video decoder
491 - Fraps FPS1 video decoder
492 - Snow video encoder/decoder
493 - Sonic audio encoder/decoder
494 - Vorbis audio decoder
495 - Macromedia ADPCM decoder
496 - Duck TrueMotion 2 video decoder
497 - support for decoding FLX and DTA extensions in FLIC files
498 - H.264 custom quantization matrices support
499 - ffserver fixed, it should now be usable again
501 - Real Cooker audio decoder
502 - TrueSpeech audio decoder
503 - WMA2 audio decoder fixed, now all files should play correctly
504 - RealAudio 14.4 and 28.8 decoders fixed
506 - build system improvements
507 - tabs and trailing whitespace removed from the codebase
508 - CamStudio video decoder
509 - AIFF/AIFF-C audio format, encoding and decoding
510 - ADTS AAC file reading and writing
511 - Creative VOC file reading and writing
512 - American Laser Games multimedia (*.mm) playback system
513 - Zip Motion Blocks Video decoder
514 - improved Theora/VP3 decoder
515 - True Audio (TTA) decoder
516 - AVS demuxer and video decoder
518 - Smacker demuxer and decoder
519 - NuppelVideo/MythTV demuxer and RTjpeg decoder
521 - MPEG-2 intra VLC support
522 - MPEG-2 4:2:2 encoder
523 - Flash Screen Video decoder
525 - Chinese AVS decoder
528 - VC-1/WMV3/WMV9 video decoder
531 - VMware video decoder
534 - WavPack lossless audio decoder
535 - Targa (.TGA) picture decoder
536 - Vorbis audio encoder
537 - Delphine Software .cin demuxer/audio and video decoder
538 - Tiertex .seq demuxer/video decoder
540 - TIFF picture encoder and decoder
541 - GIF picture decoder
542 - Intel Music Coder decoder
543 - Zip Motion Blocks Video encoder
545 - Flash Screen Video encoder
546 - Theora encoding via libtheora
549 - GSM-MS encoder and decoder
551 - DXA demuxer and decoder
553 - Gamecube movie (.THP) playback system
554 - Blackfin optimizations
555 - Interplay C93 demuxer and video decoder
556 - Bethsoft VID demuxer and video decoder
559 - V.Flash PTX decoder
560 - RoQ muxer, RoQ audio encoder
561 - Renderware TXD demuxer and decoder
562 - extern C declarations for C++ removed from headers
563 - sws_flags command line option
567 - OS/2 support removed and restored again
570 - additional SPARC (VIS) optimizations
572 - slice-based parallel H.264 decoding
573 - Monkey's Audio demuxer and decoder
574 - AMV audio and video decoder
576 - H.264 PAFF decoding
577 - Nellymoser ASAO decoder
578 - Beam Software SIFF demuxer and decoder
579 - libvorbis Vorbis decoding removed in favor of native decoder
580 - IntraX8 (J-Frame) subdecoder for WMV2 and VC-1
581 - Ogg (Theora, Vorbis and FLAC) muxer
582 - The "device" muxers and demuxers are now in a new libavdevice library
583 - PC Paintbrush PCX decoder
584 - Sun Rasterfile decoder
585 - TechnoTrend PVA demuxer
586 - Linux Media Labs MPEG-4 (LMLM4) demuxer
587 - AVM2 (Flash 9) SWF muxer
588 - QT variant of IMA ADPCM encoder
590 - iPod/iPhone compatible mp4 muxer
592 - MSN TCP Webcam stream demuxer
593 - RL2 demuxer / decoder
596 - non-recursive Makefiles
598 - MAXIS EA XA (.xa) demuxer / decoder
602 - Electronic Arts CMV decoder
603 - Motion Pixels Video decoder
604 - Motion Pixels MVI demuxer
605 - removed animated GIF decoder/demuxer
606 - D-Cinema audio muxer
607 - Electronic Arts TGV decoder
608 - Apple Lossless Audio Codec (ALAC) encoder
610 - floating point PCM encoder/decoder
612 - DV100 AKA DVCPRO HD decoder and demuxer
613 - E-AC-3 support added to AC-3 decoder
614 - Nellymoser ASAO encoder
615 - ASS and SSA demuxer and muxer
616 - liba52 wrapper removed
617 - SVQ3 watermark decoding support
618 - Speex decoding via libspeex
619 - Electronic Arts TGQ decoder
621 - QCELP / PureVoice decoder
623 - hybrid WavPack support
624 - R3D REDCODE demuxer
625 - ALSA support for playback and record
626 - Electronic Arts TQI decoder
627 - OpenJPEG based JPEG 2000 decoder
628 - NC (NC4600) camera file demuxer
629 - Gopher client support
631 - generic metadata API
636 - DV encoder, DV muxer
637 - Microsoft RLE video decoder
638 - Microsoft Video-1 decoder
639 - Apple Animation (RLE) decoder
640 - Apple Graphics (SMC) decoder
641 - Apple Video (RPZA) decoder
643 - Sega FILM (CPK) file demuxer
644 - Westwood multimedia support (VQA & AUD files)
645 - Id Quake II CIN playback support
647 - FLIC playback support
648 - RealVideo 2.0 (RV20) decoder
649 - Duck TrueMotion v1 (DUCK) video decoder
650 - Sierra VMD demuxer and video decoder
651 - MSZH and ZLIB decoder support
655 - rate distortion optimal cbp support
656 - rate distorted optimal ac prediction for MPEG-4
657 - rate distorted optimal lambda->qp support
658 - AAC encoding with libfaac
659 - Sunplus JPEG codec (SP5X) support
660 - use Lagrange multipler instead of QP for ratecontrol
661 - Theora/VP3 decoding support
662 - XA and ADX ADPCM codecs
663 - export MPEG-2 active display area / pan scan
664 - Add support for configuring with IBM XLC
665 - floating point AAN DCT
666 - initial support for zygo video (not complete)
668 - new audio/video parser API
670 - av_read_frame() and av_seek_frame() support
671 - missing last frame fixes
672 - seek by mouse in ffplay
673 - noise reduction of DCT coefficients
674 - H.263 OBMC & 4MV support
675 - H.263 alternative inter vlc support
677 - H.263 slice structured mode
678 - interlaced DCT support for MPEG-2 encoding
679 - stuffing to stay above min_bitrate
680 - MB type & QP visualization
681 - frame stepping for ffplay
682 - interlaced motion estimation
683 - alternate scantable support
684 - SVCD scan offset support
687 - quantizer noise shaping
688 - G.726 ADPCM audio codec
690 - multithreaded/SMP motion estimation
691 - multithreaded/SMP encoding for MPEG-1/MPEG-2/MPEG-4/H.263
692 - multithreaded/SMP decoding for MPEG-2
694 - Metrowerks CodeWarrior suppport
695 - H.263+ custom pcf support
696 - nicer output for 'ffmpeg -formats'
698 - SGI image format, encoding and decoding
699 - H.264 loop filter support
700 - H.264 CABAC support
701 - nicer looking arrows for the motion vector visualization
702 - improved VCD support
703 - audio timestamp drift compensation
704 - MPEG-2 YUV 422/444 support
705 - polyphase kaiser windowed sinc and blackman nuttall windowed sinc audio resample
706 - better image scaling
708 - correctly interleave packets during encoding
709 - VIS optimized motion compensation
710 - intra_dc_precision>0 encoding support
711 - support reuse of motion vectors/MB types/field select values of the source video
712 - more accurate deblock filter
714 - many optimizations and bugfixes
715 - FunCom ISS audio file demuxer and according ADPCM decoding
720 - MPEG-2 video encoding (Michael)
721 - Id RoQ playback subsystem (Mike Melanson and Tim Ferguson)
722 - Wing Commander III Movie (.mve) file playback subsystem (Mike Melanson
724 - Xan DPCM audio decoder (Mario Brito)
725 - Interplay MVE playback subsystem (Mike Melanson)
726 - Duck DK3 and DK4 ADPCM audio decoders (Mike Melanson)
731 - RealAudio 1.0 (14_4) and 2.0 (28_8) native decoders. Author unknown, code from mplayerhq
732 (originally from public domain player for Amiga at http://www.honeypot.net/audio)
733 - current version now also compiles with older GCC (Fabrice)
734 - 4X multimedia playback system including 4xm file demuxer (Mike
735 Melanson), and 4X video and audio codecs (Michael)
736 - Creative YUV (CYUV) decoder (Mike Melanson)
737 - FFV1 codec (our very simple lossless intra only codec, compresses much better
738 than HuffYUV) (Michael)
739 - ASV1 (Asus), H.264, Intel indeo3 codecs have been added (various)
740 - tiny PNG encoder and decoder, tiny GIF decoder, PAM decoder (PPM with
741 alpha support), JPEG YUV colorspace support. (Fabrice Bellard)
742 - ffplay has been replaced with a newer version which uses SDL (optionally)
743 for multiplatform support (Fabrice)
744 - Sorenson Version 3 codec (SVQ3) support has been added (decoding only) - donated
746 - AMR format has been added (Johannes Carlsson)
747 - 3GP support has been added (Johannes Carlsson)
748 - VP3 codec has been added (Mike Melanson)
749 - more MPEG-1/2 fixes
750 - better multiplatform support, MS Visual Studio fixes (various)
751 - AltiVec optimizations (Magnus Damn and others)
752 - SH4 processor support has been added (BERO)
753 - new public interfaces (avcodec_get_pix_fmt) (Roman Shaposhnick)
754 - VOB streaming support (Brian Foley)
755 - better MP3 autodetection (Andriy Rysin)
756 - qpel encoding (Michael)
757 - 4mv+b frames encoding finally fixed (Michael)
758 - chroma ME (Michael)
759 - 5 comparison functions for ME (Michael)
760 - B-frame encoding speedup (Michael)
761 - WMV2 codec (unfinished - Michael)
762 - user specified diamond size for EPZS (Michael)
763 - Playstation STR playback subsystem, still experimental (Mike and Michael)
764 - ASV2 codec (Michael)
765 - CLJR decoder (Alex)
767 .. And lots more new enhancements and fixes.
772 - completely new integer only MPEG audio layer 1/2/3 decoder rewritten
774 - Recoded DCT and motion vector search with gcc (no longer depends on nasm)
775 - fix quantization bug in AC3 encoder
776 - added PCM codecs and format. Corrected WAV/AVI/ASF PCM issues
777 - added prototype ffplay program
778 - added GOB header parsing on H.263/H.263+ decoder (Juanjo)
779 - bug fix on MCBPC tables of H.263 (Juanjo)
780 - bug fix on DC coefficients of H.263 (Juanjo)
781 - added Advanced Prediction Mode on H.263/H.263+ decoder (Juanjo)
782 - now we can decode H.263 streams found in QuickTime files (Juanjo)
783 - now we can decode H.263 streams found in VIVO v1 files(Juanjo)
784 - preliminary RTP "friendly" mode for H.263/H.263+ coding. (Juanjo)
785 - added GOB header for H.263/H.263+ coding on RTP mode (Juanjo)
786 - now H.263 picture size is returned on the first decoded frame (Juanjo)
787 - added first regression tests
788 - added MPEG-2 TS demuxer
789 - new demux API for libav
790 - more accurate and faster IDCT (Michael)
791 - faster and entropy-controlled motion search (Michael)
792 - two pass video encoding (Michael)
793 - new video rate control (Michael)
794 - added MSMPEG4V1, MSMPEGV2 and WMV1 support (Michael)
795 - great performance improvement of video encoders and decoders (Michael)
796 - new and faster bit readers and vlc parsers (Michael)
797 - high quality encoding mode: tries all macroblock/VLC types (Michael)
798 - added DV video decoder
799 - preliminary RTP/RTSP support in ffserver and libavformat
800 - H.263+ AIC decoding/encoding support (Juanjo)
801 - VCD MPEG-PS mode (Juanjo)
802 - PSNR stuff (Juanjo)
803 - simple stats output (Juanjo)
804 - 16-bit and 15-bit RGB/BGR/GBR support (Bisqwit)
809 - some header fixes (Zdenek Kabelac <kabi at informatics.muni.cz>)
810 - many MMX optimizations (Nick Kurshev <nickols_k at mail.ru>)
811 - added configure system (actually a small shell script)
812 - added MPEG audio layer 1/2/3 decoding using LGPL'ed mpglib by
813 Michael Hipp (temporary solution - waiting for integer only
815 - fixed VIDIOCSYNC interrupt
816 - added Intel H.263 decoding support ('I263' AVI fourCC)
817 - added Real Video 1.0 decoding (needs further testing)
818 - simplified image formats again. Added PGM format (=grey
819 pgm). Renamed old PGM to PGMYUV.
820 - fixed msmpeg4 slice issues (tell me if you still find problems)
821 - fixed OpenDivX bugs with newer versions (added VOL header decoding)
822 - added support for MPlayer interface
823 - added macroblock skip optimization
824 - added MJPEG decoder
825 - added mmx/mmxext IDCT from libmpeg2
826 - added pgmyuvpipe, ppm, and ppm_pipe formats (original patch by Celer
827 <celer at shell.scrypt.net>)
828 - added pixel format conversion layer (e.g. for MJPEG or PPM)
829 - added deinterlacing option
831 - MPEG-4 vol header fixes (Jonathan Marsden <snmjbm at pacbell.net>)
832 - ARM optimizations (Lionel Ulmer <lionel.ulmer at free.fr>).
833 - Windows porting of file converter
834 - added MJPEG raw format (input/ouput)
835 - added JPEG image format support (input/output)
840 - fixed some std header definitions (Bjorn Lindgren
841 <bjorn.e.lindgren at telia.com>).
842 - added MPEG demuxer (MPEG-1 and 2 compatible).
844 - added prototype RM demuxer
845 - added AC3 decoding (done with libac3 by Aaron Holtzman)
846 - added decoding codec parameter guessing (.e.g. for MPEG, because the
847 header does not include them)
848 - fixed header generation in MPEG-1, AVI and ASF muxer: wmplayer can now
849 play them (only tested video)
850 - fixed H.263 white bug
851 - fixed phase rounding in img resample filter
852 - add MMX code for polyphase img resample filter
853 - added CPU autodetection
854 - added generic title/author/copyright/comment string handling (ASF and RM
856 - added SWF demux to extract MP3 track (not usable yet because no MP3
858 - added fractional frame rate support
859 - codecs are no longer searched by read_header() (should fix ffserver
865 - BGR24 patch (initial patch by Jeroen Vreeken <pe1rxq at amsat.org>)
866 - fixed raw yuv output
867 - added motion rounding support in MPEG-4
868 - fixed motion bug rounding in MSMPEG4
869 - added B-frame handling in video core
870 - added full MPEG-1 decoding support
871 - added partial (frame only) MPEG-2 support
872 - changed the FOURCC code for H.263 to "U263" to be able to see the
873 +AVI/H.263 file with the UB Video H.263+ decoder. MPlayer works with
874 this +codec ;) (JuanJo).
875 - Halfpel motion estimation after MB type selection (JuanJo)
876 - added pgm and .Y.U.V output format
877 - suppressed 'img:' protocol. Simply use: /tmp/test%d.[pgm|Y] as input or
879 - added pgmpipe I/O format (original patch from Martin Aumueller
880 <lists at reserv.at>, but changed completely since we use a format
881 instead of a protocol)
886 - added H.263/MPEG-4/MSMPEG4 decoding support. MPEG-4 decoding support
887 (for OpenDivX) is almost complete: 8x8 MVs and rounding are
888 missing. MSMPEG4 support is complete.
889 - added prototype MPEG-1 decoder. Only I- and P-frames handled yet (it
890 can decode ffmpeg MPEGs :-)).
891 - added libavcodec API documentation (see apiexample.c).
892 - fixed image polyphase bug (the bottom of some images could be
894 - added support for non clipped motion vectors (decoding only)
895 and image sizes non-multiple of 16
896 - added support for AC prediction (decoding only)
897 - added file overwrite confirmation (can be disabled with -y)
898 - added custom size picture to H.263 using H.263+ (Juanjo)
903 - added MSMPEG4 (aka DivX) compatible encoder. Changed default codec
904 of AVI and ASF to DIV3.
905 - added -me option to set motion estimation method
906 (default=log). suppressed redundant -hq option.
907 - added options -acodec and -vcodec to force a given codec (useful for
910 - improved dct_quantize speed
911 - factorized some motion estimation code
916 - removing grab code from ffserver and moved it to ffmpeg. Added
917 multistream support to ffmpeg.
918 - added timeshifting support for live feeds (option ?date=xxx in the
920 - added high quality image resize code with polyphase filter (need
921 mmx/see optimization). Enable multiple image size support in ffserver.
922 - added multi live feed support in ffserver
923 - suppressed master feature from ffserver (it should be done with an
924 external program which opens the .ffm url and writes it to another
926 - added preliminary support for video stream parsing (WAV and AVI half
927 done). Added proper support for audio/video file conversion in
929 - added preliminary support for video file sending from ffserver
930 - redesigning I/O subsystem: now using URL based input and output
932 - added WAV format support
933 - added "tty user interface" to ffmpeg to stop grabbing gracefully
934 - added MMX/SSE optimizations to SAD (Sums of Absolutes Differences)
935 (Juan J. Sierralta P. a.k.a. "Juanjo" <juanjo at atmlab.utfsm.cl>)
936 - added MMX DCT from mpeg2_movie 1.5 (Juanjo)
937 - added new motion estimation algorithms, log and phods (Juanjo)
938 - changed directories: libav for format handling, libavcodec for
944 - added stereo in MPEG audio encoder
949 - added 'high quality' mode which use motion vectors. It can be used in
950 real time at low resolution.
951 - fixed rounding problems which caused quality problems at high
952 bitrates and large GOP size
955 version 0.3.2: small fixes
961 version 0.3.1: added avi/divx support
964 - added MPEG-4 codec compatible with OpenDivX. It is based on the H.263 codec
965 - added sound for flash format (not tested)
968 version 0.3: initial public release