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
19 - support ID3v2 tags in ASF files
20 - reference-counting for AVFrame and AVPacket data
21 - avconv now fails when input options are used for output file
23 - avconv options -filter_script and -filter_complex_script, which allow a
24 filtergraph description to be read from a file
25 - uniform options syntax across all filters
28 - asetpts filter (same as setpts, but for audio)
29 - trim and atrim filters
30 - avconv -t and -ss (output-only) options are now sample-accurate when
32 - Matroska muxer can now put the index at the beginning of the file.
33 - avconv -deinterlace option removed, the yadif filter should be used instead
34 - Apple Intermediate Codec decoder
35 - Escape 130 video decoder
36 - support for slice multithreading in libavfilter
37 - VC-1 interlaced B-frame support
38 - support for WavPack muxing (raw and in Matroska)
40 - WavPack encoding through libwavpack
41 - Added the -n parameter to avconv
43 - when transcoding with avconv (i.e. not streamcopying), -ss is now accurate
44 even when used as an input option. Previous behavior can be restored with
45 the -noaccurate_seek option.
46 - avconv -t option can now be used for inputs, to limit the duration of
47 data read from an input file
48 - Voxware MetaSound decoder
50 - Error Resilient AAC syntax (ER AAC LC) decoding
51 - Low Delay AAC (ER AAC LD) decoding
52 - mux chapters in ASF files
53 - Opus in Ogg demuxing
54 - Enhanced Low Delay AAC (ER AAC ELD) decoding (no LD SBR support)
56 - HNM version 4 demuxer and video decoder
58 - raw HEVC, HEVC in MOV/MP4, HEVC in Matroska, HEVC in MPEG-TS demuxing
59 - remove avplay -vismv option, which has not worked for a long time
61 - setsar/setdar filters now support variables in ratio expressions
62 - dar variable in the scale filter now returns the actual DAR (i.e. a * sar)
64 - support for decoding through VDPAU in avconv (the -hwaccel option)
65 - remove mp3_header_(de)compress bitstream filters
66 - stereoscopic 3d metadata handling
67 - png standalone parser
68 - WebP encoding via libwebp
71 - Mirillis FIC video decoder
73 - compand audio filter
77 - av_basename and av_dirname
78 - adobe and limelight publisher authentication in RTMP
79 - VDPAU hardware acceleration through normal hwaccel
84 - ashowinfo audio filter
85 - 24-bit FLAC encoding
87 - deprecated the avconv -vol option. the volume filter is to be used instead.
88 - multi-channel ALAC encoding up to 7.1
89 - TAK demuxer, parser, and decoder
90 - adaptive frame-level multithreading for H.264
94 - metadata (INFO tag) support in WAV muxer
95 - support for building DLLs using MSVC
96 - remove avserver daemon mode
97 - support building on the Plan 9 operating system
98 - ffv1: support version 1.3
103 - XWD encoder and decoder
104 - Support for fragmentation in the mov/mp4 muxer
105 - ISMV (Smooth Streaming) muxer
106 - CDXL demuxer and decoder
107 - Apple ProRes encoder
108 - Sun Rasterfile Encoder
110 - ID3v2 attached pictures reading and writing
111 - WMA Lossless decoder
113 - RealAudio Lossless decoder
115 - drop support for avconv without libavfilter
116 - add libavresample audio conversion library
117 - audio filters support in libavfilter and avconv
121 - avprobe output is now standard INI or JSON. The old format can still
122 be used with -of old.
123 - Indeo Audio decoder
124 - channelsplit audio filter
125 - RTMPT protocol support
126 - iLBC encoding/decoding via libilbc
127 - Microsoft Screen 1 decoder
129 - audio channel mapping filter
130 - Microsoft ATC Screen decoder
132 - TechSmith Screen Codec 2 decoder
133 - AAC encoding via libfdk-aac
134 - Microsoft Expression Encoder Screen decoder
135 - RTMPS protocol support
136 - RTMPTS protocol support
137 - JPEG 2000 encoding support through OpenJPEG
138 - G.723.1 demuxer and decoder
139 - RTMPE protocol support
140 - RTMPTE protocol support
141 - Canopus Lossless Codec decoder
142 - avconv -shortest option is now per-output file,
143 -pass and -passlogfile are now per-output stream
145 - Microsoft Screen 2 decoder
146 - RTP depacketization of JPEG
147 - Smooth Streaming live segmenter muxer
148 - RTP packetization of JPEG
149 - Opus decoder and encoder using libopus
150 - remove -same_quant, it hasn't worked for years
151 - support for building with MSVC
162 - Automatic thread count based on detection number of (available) CPU cores
163 - Deprecate libpostproc. If desired, the switch --enable-postproc will
164 enable it but it may be removed in a later Libav release.
165 - rv34: frame-level multi-threading
166 - optimized iMDCT transform on x86 using SSE for for mpegaudiodec
172 - Flash Screen Video 2 decoder
173 - ffplay/ffprobe/ffserver renamed to avplay/avprobe/avserver
174 - ffmpeg deprecated, added avconv, which is almost the same for now, except
175 for a few incompatible changes in the options, which will hopefully make them
176 easier to use. The changes are:
177 * The options placement is now strictly enforced! While in theory the
178 options for ffmpeg should be given in [input options] -i INPUT [output
179 options] OUTPUT order, in practice it was possible to give output options
180 before the -i and it mostly worked. Except when it didn't - the behavior was
181 a bit inconsistent. In avconv, it is not possible to mix input and output
182 options. All non-global options are reset after an input or output filename.
183 * All per-file options are now truly per-file - they apply only to the next
184 input or output file and specifying different values for different files
185 will now work properly (notably -ss and -t options).
186 * All per-stream options are now truly per-stream - it is possible to
187 specify which stream(s) should a given option apply to. See the Stream
188 specifiers section in the avconv manual for details.
189 * In ffmpeg some options (like -newvideo/-newaudio/...) are irregular in the
190 sense that they're specified after the output filename instead of before,
191 like all other options. In avconv this irregularity is removed, all options
192 apply to the next input or output file.
193 * -newvideo/-newaudio/-newsubtitle options were removed. Not only were they
194 irregular and highly confusing, they were also redundant. In avconv the -map
195 option will create new streams in the output file and map input streams to
196 them. E.g. avconv -i INPUT -map 0 OUTPUT will create an output stream for
197 each stream in the first input file.
198 * The -map option now has slightly different and more powerful syntax:
199 + Colons (':') are used to separate file index/stream type/stream index
200 instead of dots. Comma (',') is used to separate the sync stream instead
201 of colon.. This is done for consistency with other options.
202 + It's possible to specify stream type. E.g. -map 0:a:2 creates an
203 output stream from the third input audio stream.
204 + Omitting the stream index now maps all the streams of the given type,
205 not just the first. E.g. -map 0:s creates output streams for all the
206 subtitle streams in the first input file.
207 + Since -map can now match multiple streams, negative mappings were
208 introduced. Negative mappings disable some streams from an already
209 defined map. E.g. '-map 0 -map -0:a:1' means 'create output streams for
210 all the stream in the first input file, except for the second audio
212 * There is a new option -c (or -codec) for choosing the decoder/encoder to
213 use, which allows to precisely specify target stream(s) consistently with
214 other options. E.g. -c:v lib264 sets the codec for all video streams, -c:a:0
215 libvorbis sets the codec for the first audio stream and -c copy copies all
216 the streams without reencoding. Old -vcodec/-acodec/-scodec options are now
218 * It is now possible to precisely specify which stream should an AVOption
219 apply to. E.g. -b:v:0 2M sets the bitrate for the first video stream, while
220 -b:a 128k sets the bitrate for all audio streams. Note that the old -ab 128k
221 syntax is deprecated and will stop working soon.
222 * -map_chapters now takes only an input file index and applies to the next
223 output file. This is consistent with how all the other options work.
224 * -map_metadata now takes only an input metadata specifier and applies to
225 the next output file. Output metadata specifier is now part of the option
226 name, similarly to the AVOptions/map/codec feature above.
227 * -metadata can now be used to set metadata on streams and chapters, e.g.
228 -metadata:s:1 language=eng sets the language of the first stream to 'eng'.
229 This made -vlang/-alang/-slang options redundant, so they were removed.
230 * -qscale option now uses stream specifiers and applies to all streams, not
231 just video. I.e. plain -qscale number would now apply to all streams. To get
232 the old behavior, use -qscale:v. Also there is now a shortcut -q for -qscale
233 and -aq is now an alias for -q:a.
234 * -vbsf/-absf/-sbsf options were removed and replaced by a -bsf option which
235 uses stream specifiers. Use -bsf:v/a/s instead of the old options.
236 * -itsscale option now uses stream specifiers, so its argument is only the
238 * -intra option was removed, use -g 0 for the same effect.
239 * -psnr option was removed, use -flags +psnr for the same effect.
240 * -vf option is now an alias to the new -filter option, which uses stream specifiers.
241 * -vframes/-aframes/-dframes options are now aliases to the new -frames option.
242 * -vtag/-atag/-stag options are now aliases to the new -tag option.
244 - Windows Media Image decoder
248 - libcdio-paranoia input device for audio CD grabbing
250 - Apple ProRes decoder
251 - CELT in Ogg demuxing
252 - VC-1 interlaced decoding
253 - lut, lutrgb, and lutyuv filters
256 - Speex encoding via libspeex
257 - 4:2:2 H.264 decoding support
258 - 4:2:2 and 4:4:4 H.264 encoding with libx264
259 - Pulseaudio input device
260 - replacement Indeo 3 decoder
261 - TLS/SSL and HTTPS protocol support
262 - AVOptions API rewritten and documented
263 - most of CODEC_FLAG2_*, some CODEC_FLAG_* and many codec-specific fields in
264 AVCodecContext deprecated. Codec private options should be used instead.
265 - Properly working defaults in libx264 wrapper, support for native presets.
266 - Encrypted OMA files support
267 - Discworld II BMV decoding support
269 - OS X Video Decoder Acceleration (VDA) support
270 - CRI ADX audio format muxer and demuxer
271 - Playstation Portable PMP format demuxer
272 - PCM format support in OMA demuxer
274 - Dxtory capture format decoder
275 - v410 QuickTime uncompressed 4:4:4 10-bit encoder and decoder
277 - Simple segmenting muxer
284 - E-AC-3 audio encoder
285 - ac3enc: add channel coupling support
286 - floating-point sample format support for (E-)AC-3, DCA, AAC, Vorbis decoders
287 - H.264/MPEG frame-level multithreading
288 - av_metadata_* functions renamed to av_dict_* and moved to libavutil
289 - 4:4:4 H.264 decoding support
290 - 10-bit H.264 optimizations for x86
291 - bump libswscale for recently reported ABI break
296 - VP8 frame-level multithreading
297 - NEON optimizations for VP8
298 - removed a lot of deprecated API cruft
299 - FFT and IMDCT optimizations for AVX (Sandy Bridge) processors
301 - SMPTE 302M AES3 audio decoder
302 - ffmpeg no longer quits after the 'q' key is pressed; use 'ctrl+c' instead
303 - 9bit and 10bit per sample support in the H.264 decoder
308 - WebM support in Matroska de/muxer
309 - low overhead Ogg muxing
311 - VP8 de/encoding via libvpx
312 - Demuxer for On2's IVF format
313 - Pictor/PC Paint decoder
315 - libfaad2 wrapper removed
316 - DTS-ES extension (XCh) decoding support
318 - RTSP tunneling over HTTP
319 - RTP depacketization of SVQ3
320 - -strict inofficial replaced by -strict unofficial
321 - ffplay -exitonkeydown and -exitonmousedown options added
322 - native GSM / GSM MS decoder
323 - RTP depacketization of QDM2
324 - ANSI/ASCII art playback system
325 - Lego Mindstorms RSO de/muxer
326 - SubRip subtitle file muxer and demuxer
327 - Chinese AVS encoding via libxavs
328 - ffprobe -show_packets option added
329 - RTP packetization of Theora and Vorbis
330 - RTP depacketization of MP4A-LATM
331 - RTP packetization and depacketization of VP8
333 - Apple HTTP Live Streaming demuxer
336 - G.722 ADPCM audio encoder/decoder
339 - frei0r wrapper filter
340 - change crop filter syntax to width:height:x:y
341 - make the crop filter accept parametric expressions
342 - make ffprobe accept AVFormatContext options
345 - Demuxer for Leitch/Harris' VR native stream format (LXF)
346 - RTP depacketization of the X-QT QuickTime format
347 - SAP (Session Announcement Protocol, RFC 2974) muxer and demuxer
349 - ffmpeg -crop* options removed
350 - transpose filter added
351 - ffmpeg -force_key_frames option added
352 - demuxer for receiving raw rtp:// URLs without an SDP description
353 - single stream LATM/LOAS decoder
354 - setpts filter added
355 - Win64 support for optimized x86 assembly functions
356 - MJPEG/AVI1 to JPEG/JFIF bitstream filter
357 - ASS subtitle encoder and decoder
358 - IEC 61937 encapsulation for E-AC-3, TrueHD, DTS-HD (for HDMI passthrough)
359 - overlay filter added
360 - rename aspect filter to setdar, and pixelaspect to setsar
362 - Mobotix .mxg demuxer
363 - frei0r source added
364 - hqdn3d filter added
365 - RTP depacketization of QCELP
367 - gradfun filter added
369 - replace the ocv_smooth filter with a more generic ocv filter
370 - Windows Televison (WTV) demuxer
371 - FFmpeg metadata format muxer and demuxer
372 - SubRip (srt) subtitle decoder
373 - floating-point AC-3 encoder added
375 - ffmpeg -copytb option added
377 - Wing Commander IV movies decoder added
379 - Bink version 'b' audio and video decoder
380 - Bitmap Brothers JV playback system
381 - Apple HTTP Live Streaming protocol handler
382 - sndio support for playback and record
383 - Linux framebuffer input device added
384 - Chronomaster DFA decoder
385 - Mobotix MxPEG decoder
386 - AAC encoding via libvo-aacenc
387 - AMR-WB encoding via libvo-amrwbenc
389 - fieldorder video filter added
394 - PB-frame decoding for H.263
395 - deprecated vhook subsystem removed
396 - deprecated old scaler removed
398 - Alpha channel scaler
400 - RTP packetization of H.263
401 - RTP packetization of AMR
402 - RTP depacketization of Vorbis
403 - CorePNG decoding support
404 - Cook multichannel decoding support
405 - introduced avlanguage helpers in libavformat
406 - 8088flex TMV demuxer and decoder
407 - per-stream language-tags extraction in asfdec
408 - V210 decoder and encoder
409 - remaining GPL parts in AC-3 decoder converted to LGPL
411 - SoX native format muxer and demuxer
412 - AMR-NB decoding/encoding, AMR-WB decoding via OpenCORE libraries
414 - Electronic Arts Madcow decoder
415 - DivX (XSUB) subtitle encoder
416 - nonfree libamr support for AMR-NB/WB decoding/encoding removed
417 - experimental AAC encoder
418 - RTP depacketization of ASF and RTSP from WMS servers
419 - RTMP support in libavformat
420 - noX handling for OPT_BOOL X options
422 - IEC-61937 compatible Muxer
424 - Bluray (PGS) subtitle decoder
425 - LPCM support in MPEG-TS (HDMV RID as found on Blu-ray disks)
427 - Core Audio Format demuxer
429 - MD STUDIO audio demuxer
430 - RF64 support in WAV demuxer
431 - MPEG-4 Audio Lossless Coding (ALS) decoder
432 - -formats option split into -formats, -codecs, -bsfs, and -protocols
434 - CDG demuxer and decoder
436 - Auravision Aura 1 and 2 decoders
437 - Deluxe Paint Animation playback system
439 - Adobe Filmstrip muxer and demuxer
440 - RTP depacketization of H.263
441 - Bink demuxer and audio/video decoders
442 - enable symbol versioning by default for linkers that support it
443 - IFF PBM/ILBM bitmap decoder
446 - RTP depacketization of AMR
452 - Kega Game Video (KGV1) decoder
453 - VorbisComment writing for FLAC, Ogg FLAC and Ogg Speex files
454 - RTP depacketization of Theora
455 - HTTP Digest authentication
456 - RTMP/RTMPT/RTMPS/RTMPE/RTMPTE protocol support via librtmp
457 - Psygnosis YOP demuxer and video decoder
458 - spectral extension support in the E-AC-3 decoder
459 - unsharp video filter
460 - RTP hinting in the mov/3gp/mp4 muxer
461 - Dirac in Ogg demuxing
462 - seek to keyframes in Ogg
463 - 4:2:2 and 4:4:4 Theora decoding
464 - 35% faster VP3/Theora decoding
465 - faster AAC decoding
466 - faster H.264 decoding
467 - RealAudio 1.0 (14.4K) encoder
472 - DV50 AKA DVCPRO50 encoder, decoder, muxer and demuxer
473 - TechSmith Camtasia (TSCC) video decoder
474 - IBM Ultimotion (ULTI) video decoder
475 - Sierra Online audio file demuxer and decoder
476 - Apple QuickDraw (qdrw) video decoder
477 - Creative ADPCM audio decoder (16 bits as well as 8 bits schemes)
478 - Electronic Arts Multimedia (WVE/UV2/etc.) file demuxer
479 - Miro VideoXL (VIXL) video decoder
480 - H.261 video encoder
482 - Nullsoft Video (NSV) file demuxer
483 - Shorten audio decoder
485 - Apple Lossless Audio Codec (ALAC) decoder
486 - Winnov WNV1 video decoder
487 - Autodesk Animator Studio Codec (AASC) decoder
488 - Indeo 2 video decoder
489 - Fraps FPS1 video decoder
490 - Snow video encoder/decoder
491 - Sonic audio encoder/decoder
492 - Vorbis audio decoder
493 - Macromedia ADPCM decoder
494 - Duck TrueMotion 2 video decoder
495 - support for decoding FLX and DTA extensions in FLIC files
496 - H.264 custom quantization matrices support
497 - ffserver fixed, it should now be usable again
499 - Real Cooker audio decoder
500 - TrueSpeech audio decoder
501 - WMA2 audio decoder fixed, now all files should play correctly
502 - RealAudio 14.4 and 28.8 decoders fixed
504 - build system improvements
505 - tabs and trailing whitespace removed from the codebase
506 - CamStudio video decoder
507 - AIFF/AIFF-C audio format, encoding and decoding
508 - ADTS AAC file reading and writing
509 - Creative VOC file reading and writing
510 - American Laser Games multimedia (*.mm) playback system
511 - Zip Motion Blocks Video decoder
512 - improved Theora/VP3 decoder
513 - True Audio (TTA) decoder
514 - AVS demuxer and video decoder
516 - Smacker demuxer and decoder
517 - NuppelVideo/MythTV demuxer and RTjpeg decoder
519 - MPEG-2 intra VLC support
520 - MPEG-2 4:2:2 encoder
521 - Flash Screen Video decoder
523 - Chinese AVS decoder
526 - VC-1/WMV3/WMV9 video decoder
529 - VMware video decoder
532 - WavPack lossless audio decoder
533 - Targa (.TGA) picture decoder
534 - Vorbis audio encoder
535 - Delphine Software .cin demuxer/audio and video decoder
536 - Tiertex .seq demuxer/video decoder
538 - TIFF picture encoder and decoder
539 - GIF picture decoder
540 - Intel Music Coder decoder
541 - Zip Motion Blocks Video encoder
543 - Flash Screen Video encoder
544 - Theora encoding via libtheora
547 - GSM-MS encoder and decoder
549 - DXA demuxer and decoder
551 - Gamecube movie (.THP) playback system
552 - Blackfin optimizations
553 - Interplay C93 demuxer and video decoder
554 - Bethsoft VID demuxer and video decoder
557 - V.Flash PTX decoder
558 - RoQ muxer, RoQ audio encoder
559 - Renderware TXD demuxer and decoder
560 - extern C declarations for C++ removed from headers
561 - sws_flags command line option
565 - OS/2 support removed and restored again
568 - additional SPARC (VIS) optimizations
570 - slice-based parallel H.264 decoding
571 - Monkey's Audio demuxer and decoder
572 - AMV audio and video decoder
574 - H.264 PAFF decoding
575 - Nellymoser ASAO decoder
576 - Beam Software SIFF demuxer and decoder
577 - libvorbis Vorbis decoding removed in favor of native decoder
578 - IntraX8 (J-Frame) subdecoder for WMV2 and VC-1
579 - Ogg (Theora, Vorbis and FLAC) muxer
580 - The "device" muxers and demuxers are now in a new libavdevice library
581 - PC Paintbrush PCX decoder
582 - Sun Rasterfile decoder
583 - TechnoTrend PVA demuxer
584 - Linux Media Labs MPEG-4 (LMLM4) demuxer
585 - AVM2 (Flash 9) SWF muxer
586 - QT variant of IMA ADPCM encoder
588 - iPod/iPhone compatible mp4 muxer
590 - MSN TCP Webcam stream demuxer
591 - RL2 demuxer / decoder
594 - non-recursive Makefiles
596 - MAXIS EA XA (.xa) demuxer / decoder
600 - Electronic Arts CMV decoder
601 - Motion Pixels Video decoder
602 - Motion Pixels MVI demuxer
603 - removed animated GIF decoder/demuxer
604 - D-Cinema audio muxer
605 - Electronic Arts TGV decoder
606 - Apple Lossless Audio Codec (ALAC) encoder
608 - floating point PCM encoder/decoder
610 - DV100 AKA DVCPRO HD decoder and demuxer
611 - E-AC-3 support added to AC-3 decoder
612 - Nellymoser ASAO encoder
613 - ASS and SSA demuxer and muxer
614 - liba52 wrapper removed
615 - SVQ3 watermark decoding support
616 - Speex decoding via libspeex
617 - Electronic Arts TGQ decoder
619 - QCELP / PureVoice decoder
621 - hybrid WavPack support
622 - R3D REDCODE demuxer
623 - ALSA support for playback and record
624 - Electronic Arts TQI decoder
625 - OpenJPEG based JPEG 2000 decoder
626 - NC (NC4600) camera file demuxer
627 - Gopher client support
629 - generic metadata API
634 - DV encoder, DV muxer
635 - Microsoft RLE video decoder
636 - Microsoft Video-1 decoder
637 - Apple Animation (RLE) decoder
638 - Apple Graphics (SMC) decoder
639 - Apple Video (RPZA) decoder
641 - Sega FILM (CPK) file demuxer
642 - Westwood multimedia support (VQA & AUD files)
643 - Id Quake II CIN playback support
645 - FLIC playback support
646 - RealVideo 2.0 (RV20) decoder
647 - Duck TrueMotion v1 (DUCK) video decoder
648 - Sierra VMD demuxer and video decoder
649 - MSZH and ZLIB decoder support
653 - rate distortion optimal cbp support
654 - rate distorted optimal ac prediction for MPEG-4
655 - rate distorted optimal lambda->qp support
656 - AAC encoding with libfaac
657 - Sunplus JPEG codec (SP5X) support
658 - use Lagrange multipler instead of QP for ratecontrol
659 - Theora/VP3 decoding support
660 - XA and ADX ADPCM codecs
661 - export MPEG-2 active display area / pan scan
662 - Add support for configuring with IBM XLC
663 - floating point AAN DCT
664 - initial support for zygo video (not complete)
666 - new audio/video parser API
668 - av_read_frame() and av_seek_frame() support
669 - missing last frame fixes
670 - seek by mouse in ffplay
671 - noise reduction of DCT coefficients
672 - H.263 OBMC & 4MV support
673 - H.263 alternative inter vlc support
675 - H.263 slice structured mode
676 - interlaced DCT support for MPEG-2 encoding
677 - stuffing to stay above min_bitrate
678 - MB type & QP visualization
679 - frame stepping for ffplay
680 - interlaced motion estimation
681 - alternate scantable support
682 - SVCD scan offset support
685 - quantizer noise shaping
686 - G.726 ADPCM audio codec
688 - multithreaded/SMP motion estimation
689 - multithreaded/SMP encoding for MPEG-1/MPEG-2/MPEG-4/H.263
690 - multithreaded/SMP decoding for MPEG-2
692 - Metrowerks CodeWarrior suppport
693 - H.263+ custom pcf support
694 - nicer output for 'ffmpeg -formats'
696 - SGI image format, encoding and decoding
697 - H.264 loop filter support
698 - H.264 CABAC support
699 - nicer looking arrows for the motion vector visualization
700 - improved VCD support
701 - audio timestamp drift compensation
702 - MPEG-2 YUV 422/444 support
703 - polyphase kaiser windowed sinc and blackman nuttall windowed sinc audio resample
704 - better image scaling
706 - correctly interleave packets during encoding
707 - VIS optimized motion compensation
708 - intra_dc_precision>0 encoding support
709 - support reuse of motion vectors/MB types/field select values of the source video
710 - more accurate deblock filter
712 - many optimizations and bugfixes
713 - FunCom ISS audio file demuxer and according ADPCM decoding
718 - MPEG-2 video encoding (Michael)
719 - Id RoQ playback subsystem (Mike Melanson and Tim Ferguson)
720 - Wing Commander III Movie (.mve) file playback subsystem (Mike Melanson
722 - Xan DPCM audio decoder (Mario Brito)
723 - Interplay MVE playback subsystem (Mike Melanson)
724 - Duck DK3 and DK4 ADPCM audio decoders (Mike Melanson)
729 - RealAudio 1.0 (14_4) and 2.0 (28_8) native decoders. Author unknown, code from mplayerhq
730 (originally from public domain player for Amiga at http://www.honeypot.net/audio)
731 - current version now also compiles with older GCC (Fabrice)
732 - 4X multimedia playback system including 4xm file demuxer (Mike
733 Melanson), and 4X video and audio codecs (Michael)
734 - Creative YUV (CYUV) decoder (Mike Melanson)
735 - FFV1 codec (our very simple lossless intra only codec, compresses much better
736 than HuffYUV) (Michael)
737 - ASV1 (Asus), H.264, Intel indeo3 codecs have been added (various)
738 - tiny PNG encoder and decoder, tiny GIF decoder, PAM decoder (PPM with
739 alpha support), JPEG YUV colorspace support. (Fabrice Bellard)
740 - ffplay has been replaced with a newer version which uses SDL (optionally)
741 for multiplatform support (Fabrice)
742 - Sorenson Version 3 codec (SVQ3) support has been added (decoding only) - donated
744 - AMR format has been added (Johannes Carlsson)
745 - 3GP support has been added (Johannes Carlsson)
746 - VP3 codec has been added (Mike Melanson)
747 - more MPEG-1/2 fixes
748 - better multiplatform support, MS Visual Studio fixes (various)
749 - AltiVec optimizations (Magnus Damn and others)
750 - SH4 processor support has been added (BERO)
751 - new public interfaces (avcodec_get_pix_fmt) (Roman Shaposhnick)
752 - VOB streaming support (Brian Foley)
753 - better MP3 autodetection (Andriy Rysin)
754 - qpel encoding (Michael)
755 - 4mv+b frames encoding finally fixed (Michael)
756 - chroma ME (Michael)
757 - 5 comparison functions for ME (Michael)
758 - B-frame encoding speedup (Michael)
759 - WMV2 codec (unfinished - Michael)
760 - user specified diamond size for EPZS (Michael)
761 - Playstation STR playback subsystem, still experimental (Mike and Michael)
762 - ASV2 codec (Michael)
763 - CLJR decoder (Alex)
765 .. And lots more new enhancements and fixes.
770 - completely new integer only MPEG audio layer 1/2/3 decoder rewritten
772 - Recoded DCT and motion vector search with gcc (no longer depends on nasm)
773 - fix quantization bug in AC3 encoder
774 - added PCM codecs and format. Corrected WAV/AVI/ASF PCM issues
775 - added prototype ffplay program
776 - added GOB header parsing on H.263/H.263+ decoder (Juanjo)
777 - bug fix on MCBPC tables of H.263 (Juanjo)
778 - bug fix on DC coefficients of H.263 (Juanjo)
779 - added Advanced Prediction Mode on H.263/H.263+ decoder (Juanjo)
780 - now we can decode H.263 streams found in QuickTime files (Juanjo)
781 - now we can decode H.263 streams found in VIVO v1 files(Juanjo)
782 - preliminary RTP "friendly" mode for H.263/H.263+ coding. (Juanjo)
783 - added GOB header for H.263/H.263+ coding on RTP mode (Juanjo)
784 - now H.263 picture size is returned on the first decoded frame (Juanjo)
785 - added first regression tests
786 - added MPEG-2 TS demuxer
787 - new demux API for libav
788 - more accurate and faster IDCT (Michael)
789 - faster and entropy-controlled motion search (Michael)
790 - two pass video encoding (Michael)
791 - new video rate control (Michael)
792 - added MSMPEG4V1, MSMPEGV2 and WMV1 support (Michael)
793 - great performance improvement of video encoders and decoders (Michael)
794 - new and faster bit readers and vlc parsers (Michael)
795 - high quality encoding mode: tries all macroblock/VLC types (Michael)
796 - added DV video decoder
797 - preliminary RTP/RTSP support in ffserver and libavformat
798 - H.263+ AIC decoding/encoding support (Juanjo)
799 - VCD MPEG-PS mode (Juanjo)
800 - PSNR stuff (Juanjo)
801 - simple stats output (Juanjo)
802 - 16-bit and 15-bit RGB/BGR/GBR support (Bisqwit)
807 - some header fixes (Zdenek Kabelac <kabi at informatics.muni.cz>)
808 - many MMX optimizations (Nick Kurshev <nickols_k at mail.ru>)
809 - added configure system (actually a small shell script)
810 - added MPEG audio layer 1/2/3 decoding using LGPL'ed mpglib by
811 Michael Hipp (temporary solution - waiting for integer only
813 - fixed VIDIOCSYNC interrupt
814 - added Intel H.263 decoding support ('I263' AVI fourCC)
815 - added Real Video 1.0 decoding (needs further testing)
816 - simplified image formats again. Added PGM format (=grey
817 pgm). Renamed old PGM to PGMYUV.
818 - fixed msmpeg4 slice issues (tell me if you still find problems)
819 - fixed OpenDivX bugs with newer versions (added VOL header decoding)
820 - added support for MPlayer interface
821 - added macroblock skip optimization
822 - added MJPEG decoder
823 - added mmx/mmxext IDCT from libmpeg2
824 - added pgmyuvpipe, ppm, and ppm_pipe formats (original patch by Celer
825 <celer at shell.scrypt.net>)
826 - added pixel format conversion layer (e.g. for MJPEG or PPM)
827 - added deinterlacing option
829 - MPEG-4 vol header fixes (Jonathan Marsden <snmjbm at pacbell.net>)
830 - ARM optimizations (Lionel Ulmer <lionel.ulmer at free.fr>).
831 - Windows porting of file converter
832 - added MJPEG raw format (input/ouput)
833 - added JPEG image format support (input/output)
838 - fixed some std header definitions (Bjorn Lindgren
839 <bjorn.e.lindgren at telia.com>).
840 - added MPEG demuxer (MPEG-1 and 2 compatible).
842 - added prototype RM demuxer
843 - added AC3 decoding (done with libac3 by Aaron Holtzman)
844 - added decoding codec parameter guessing (.e.g. for MPEG, because the
845 header does not include them)
846 - fixed header generation in MPEG-1, AVI and ASF muxer: wmplayer can now
847 play them (only tested video)
848 - fixed H.263 white bug
849 - fixed phase rounding in img resample filter
850 - add MMX code for polyphase img resample filter
851 - added CPU autodetection
852 - added generic title/author/copyright/comment string handling (ASF and RM
854 - added SWF demux to extract MP3 track (not usable yet because no MP3
856 - added fractional frame rate support
857 - codecs are no longer searched by read_header() (should fix ffserver
863 - BGR24 patch (initial patch by Jeroen Vreeken <pe1rxq at amsat.org>)
864 - fixed raw yuv output
865 - added motion rounding support in MPEG-4
866 - fixed motion bug rounding in MSMPEG4
867 - added B-frame handling in video core
868 - added full MPEG-1 decoding support
869 - added partial (frame only) MPEG-2 support
870 - changed the FOURCC code for H.263 to "U263" to be able to see the
871 +AVI/H.263 file with the UB Video H.263+ decoder. MPlayer works with
872 this +codec ;) (JuanJo).
873 - Halfpel motion estimation after MB type selection (JuanJo)
874 - added pgm and .Y.U.V output format
875 - suppressed 'img:' protocol. Simply use: /tmp/test%d.[pgm|Y] as input or
877 - added pgmpipe I/O format (original patch from Martin Aumueller
878 <lists at reserv.at>, but changed completely since we use a format
879 instead of a protocol)
884 - added H.263/MPEG-4/MSMPEG4 decoding support. MPEG-4 decoding support
885 (for OpenDivX) is almost complete: 8x8 MVs and rounding are
886 missing. MSMPEG4 support is complete.
887 - added prototype MPEG-1 decoder. Only I- and P-frames handled yet (it
888 can decode ffmpeg MPEGs :-)).
889 - added libavcodec API documentation (see apiexample.c).
890 - fixed image polyphase bug (the bottom of some images could be
892 - added support for non clipped motion vectors (decoding only)
893 and image sizes non-multiple of 16
894 - added support for AC prediction (decoding only)
895 - added file overwrite confirmation (can be disabled with -y)
896 - added custom size picture to H.263 using H.263+ (Juanjo)
901 - added MSMPEG4 (aka DivX) compatible encoder. Changed default codec
902 of AVI and ASF to DIV3.
903 - added -me option to set motion estimation method
904 (default=log). suppressed redundant -hq option.
905 - added options -acodec and -vcodec to force a given codec (useful for
908 - improved dct_quantize speed
909 - factorized some motion estimation code
914 - removing grab code from ffserver and moved it to ffmpeg. Added
915 multistream support to ffmpeg.
916 - added timeshifting support for live feeds (option ?date=xxx in the
918 - added high quality image resize code with polyphase filter (need
919 mmx/see optimization). Enable multiple image size support in ffserver.
920 - added multi live feed support in ffserver
921 - suppressed master feature from ffserver (it should be done with an
922 external program which opens the .ffm url and writes it to another
924 - added preliminary support for video stream parsing (WAV and AVI half
925 done). Added proper support for audio/video file conversion in
927 - added preliminary support for video file sending from ffserver
928 - redesigning I/O subsystem: now using URL based input and output
930 - added WAV format support
931 - added "tty user interface" to ffmpeg to stop grabbing gracefully
932 - added MMX/SSE optimizations to SAD (Sums of Absolutes Differences)
933 (Juan J. Sierralta P. a.k.a. "Juanjo" <juanjo at atmlab.utfsm.cl>)
934 - added MMX DCT from mpeg2_movie 1.5 (Juanjo)
935 - added new motion estimation algorithms, log and phods (Juanjo)
936 - changed directories: libav for format handling, libavcodec for
942 - added stereo in MPEG audio encoder
947 - added 'high quality' mode which use motion vectors. It can be used in
948 real time at low resolution.
949 - fixed rounding problems which caused quality problems at high
950 bitrates and large GOP size
953 version 0.3.2: small fixes
959 version 0.3.1: added avi/divx support
962 - added MPEG-4 codec compatible with OpenDivX. It is based on the H.263 codec
963 - added sound for flash format (not tested)
966 version 0.3: initial public release