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