1 Entries are sorted chronologically from oldest to youngest within each release,
2 releases are sorted from youngest to oldest.
7 - replaygain data export
12 - support ID3v2 tags in ASF files
13 - reference-counting for AVFrame and AVPacket data
14 - avconv now fails when input options are used for output file
16 - avconv options -filter_script and -filter_complex_script, which allow a
17 filtergraph description to be read from a file
18 - uniform options syntax across all filters
21 - asetpts filter (same as setpts, but for audio)
22 - trim and atrim filters
23 - avconv -t and -ss (output-only) options are now sample-accurate when
25 - Matroska muxer can now put the index at the beginning of the file.
26 - avconv -deinterlace option removed, the yadif filter should be used instead
27 - Apple Intermediate Codec decoder
28 - Escape 130 video decoder
29 - support for slice multithreading in libavfilter
30 - VC-1 interlaced B-frame support
31 - support for WavPack muxing (raw and in Matroska)
33 - WavPack encoding through libwavpack
34 - Added the -n parameter to avconv
36 - when transcoding with avconv (i.e. not streamcopying), -ss is now accurate
37 even when used as an input option. Previous behavior can be restored with
38 the -noaccurate_seek option.
39 - avconv -t option can now be used for inputs, to limit the duration of
40 data read from an input file
41 - Voxware MetaSound decoder
43 - Error Resilient AAC syntax (ER AAC LC) decoding
44 - Low Delay AAC (ER AAC LD) decoding
45 - mux chapters in ASF files
46 - Opus in Ogg demuxing
47 - Enhanced Low Delay AAC (ER AAC ELD) decoding (no LD SBR support)
49 - HNM version 4 demuxer and video decoder
51 - raw HEVC, HEVC in MOV/MP4, HEVC in Matroska, HEVC in MPEG-TS demuxing
52 - remove avplay -vismv option, which has not worked for a long time
54 - setsar/setdar filters now support variables in ratio expressions
55 - dar variable in the scale filter now returns the actual DAR (i.e. a * sar)
57 - support for decoding through VDPAU in avconv (the -hwaccel option)
58 - remove mp3_header_(de)compress bitstream filters
59 - stereoscopic 3d metadata handling
60 - png standalone parser
61 - WebP encoding via libwebp
64 - Mirillis FIC video decoder
66 - compand audio filter
70 - av_basename and av_dirname
71 - adobe and limelight publisher authentication in RTMP
72 - VDPAU hardware acceleration through normal hwaccel
77 - ashowinfo audio filter
78 - 24-bit FLAC encoding
80 - deprecated the avconv -vol option. the volume filter is to be used instead.
81 - multi-channel ALAC encoding up to 7.1
82 - TAK demuxer, parser, and decoder
83 - adaptive frame-level multithreading for H.264
87 - metadata (INFO tag) support in WAV muxer
88 - support for building DLLs using MSVC
89 - remove avserver daemon mode
90 - support building on the Plan 9 operating system
91 - ffv1: support version 1.3
96 - XWD encoder and decoder
97 - Support for fragmentation in the mov/mp4 muxer
98 - ISMV (Smooth Streaming) muxer
99 - CDXL demuxer and decoder
100 - Apple ProRes encoder
101 - Sun Rasterfile Encoder
103 - ID3v2 attached pictures reading and writing
104 - WMA Lossless decoder
106 - RealAudio Lossless decoder
108 - drop support for avconv without libavfilter
109 - add libavresample audio conversion library
110 - audio filters support in libavfilter and avconv
114 - avprobe output is now standard INI or JSON. The old format can still
115 be used with -of old.
116 - Indeo Audio decoder
117 - channelsplit audio filter
118 - RTMPT protocol support
119 - iLBC encoding/decoding via libilbc
120 - Microsoft Screen 1 decoder
122 - audio channel mapping filter
123 - Microsoft ATC Screen decoder
125 - TechSmith Screen Codec 2 decoder
126 - AAC encoding via libfdk-aac
127 - Microsoft Expression Encoder Screen decoder
128 - RTMPS protocol support
129 - RTMPTS protocol support
130 - JPEG 2000 encoding support through OpenJPEG
131 - G.723.1 demuxer and decoder
132 - RTMPE protocol support
133 - RTMPTE protocol support
134 - Canopus Lossless Codec decoder
135 - avconv -shortest option is now per-output file,
136 -pass and -passlogfile are now per-output stream
138 - Microsoft Screen 2 decoder
139 - RTP depacketization of JPEG
140 - Smooth Streaming live segmenter muxer
141 - RTP packetization of JPEG
142 - Opus decoder and encoder using libopus
143 - remove -same_quant, it hasn't worked for years
144 - support for building with MSVC
155 - Automatic thread count based on detection number of (available) CPU cores
156 - Deprecate libpostproc. If desired, the switch --enable-postproc will
157 enable it but it may be removed in a later Libav release.
158 - rv34: frame-level multi-threading
159 - optimized iMDCT transform on x86 using SSE for for mpegaudiodec
165 - Flash Screen Video 2 decoder
166 - ffplay/ffprobe/ffserver renamed to avplay/avprobe/avserver
167 - ffmpeg deprecated, added avconv, which is almost the same for now, except
168 for a few incompatible changes in the options, which will hopefully make them
169 easier to use. The changes are:
170 * The options placement is now strictly enforced! While in theory the
171 options for ffmpeg should be given in [input options] -i INPUT [output
172 options] OUTPUT order, in practice it was possible to give output options
173 before the -i and it mostly worked. Except when it didn't - the behavior was
174 a bit inconsistent. In avconv, it is not possible to mix input and output
175 options. All non-global options are reset after an input or output filename.
176 * All per-file options are now truly per-file - they apply only to the next
177 input or output file and specifying different values for different files
178 will now work properly (notably -ss and -t options).
179 * All per-stream options are now truly per-stream - it is possible to
180 specify which stream(s) should a given option apply to. See the Stream
181 specifiers section in the avconv manual for details.
182 * In ffmpeg some options (like -newvideo/-newaudio/...) are irregular in the
183 sense that they're specified after the output filename instead of before,
184 like all other options. In avconv this irregularity is removed, all options
185 apply to the next input or output file.
186 * -newvideo/-newaudio/-newsubtitle options were removed. Not only were they
187 irregular and highly confusing, they were also redundant. In avconv the -map
188 option will create new streams in the output file and map input streams to
189 them. E.g. avconv -i INPUT -map 0 OUTPUT will create an output stream for
190 each stream in the first input file.
191 * The -map option now has slightly different and more powerful syntax:
192 + Colons (':') are used to separate file index/stream type/stream index
193 instead of dots. Comma (',') is used to separate the sync stream instead
194 of colon.. This is done for consistency with other options.
195 + It's possible to specify stream type. E.g. -map 0:a:2 creates an
196 output stream from the third input audio stream.
197 + Omitting the stream index now maps all the streams of the given type,
198 not just the first. E.g. -map 0:s creates output streams for all the
199 subtitle streams in the first input file.
200 + Since -map can now match multiple streams, negative mappings were
201 introduced. Negative mappings disable some streams from an already
202 defined map. E.g. '-map 0 -map -0:a:1' means 'create output streams for
203 all the stream in the first input file, except for the second audio
205 * There is a new option -c (or -codec) for choosing the decoder/encoder to
206 use, which allows to precisely specify target stream(s) consistently with
207 other options. E.g. -c:v lib264 sets the codec for all video streams, -c:a:0
208 libvorbis sets the codec for the first audio stream and -c copy copies all
209 the streams without reencoding. Old -vcodec/-acodec/-scodec options are now
211 * It is now possible to precisely specify which stream should an AVOption
212 apply to. E.g. -b:v:0 2M sets the bitrate for the first video stream, while
213 -b:a 128k sets the bitrate for all audio streams. Note that the old -ab 128k
214 syntax is deprecated and will stop working soon.
215 * -map_chapters now takes only an input file index and applies to the next
216 output file. This is consistent with how all the other options work.
217 * -map_metadata now takes only an input metadata specifier and applies to
218 the next output file. Output metadata specifier is now part of the option
219 name, similarly to the AVOptions/map/codec feature above.
220 * -metadata can now be used to set metadata on streams and chapters, e.g.
221 -metadata:s:1 language=eng sets the language of the first stream to 'eng'.
222 This made -vlang/-alang/-slang options redundant, so they were removed.
223 * -qscale option now uses stream specifiers and applies to all streams, not
224 just video. I.e. plain -qscale number would now apply to all streams. To get
225 the old behavior, use -qscale:v. Also there is now a shortcut -q for -qscale
226 and -aq is now an alias for -q:a.
227 * -vbsf/-absf/-sbsf options were removed and replaced by a -bsf option which
228 uses stream specifiers. Use -bsf:v/a/s instead of the old options.
229 * -itsscale option now uses stream specifiers, so its argument is only the
231 * -intra option was removed, use -g 0 for the same effect.
232 * -psnr option was removed, use -flags +psnr for the same effect.
233 * -vf option is now an alias to the new -filter option, which uses stream specifiers.
234 * -vframes/-aframes/-dframes options are now aliases to the new -frames option.
235 * -vtag/-atag/-stag options are now aliases to the new -tag option.
237 - Windows Media Image decoder
241 - libcdio-paranoia input device for audio CD grabbing
243 - Apple ProRes decoder
244 - CELT in Ogg demuxing
245 - VC-1 interlaced decoding
246 - lut, lutrgb, and lutyuv filters
249 - Speex encoding via libspeex
250 - 4:2:2 H.264 decoding support
251 - 4:2:2 and 4:4:4 H.264 encoding with libx264
252 - Pulseaudio input device
253 - replacement Indeo 3 decoder
254 - TLS/SSL and HTTPS protocol support
255 - AVOptions API rewritten and documented
256 - most of CODEC_FLAG2_*, some CODEC_FLAG_* and many codec-specific fields in
257 AVCodecContext deprecated. Codec private options should be used instead.
258 - Properly working defaults in libx264 wrapper, support for native presets.
259 - Encrypted OMA files support
260 - Discworld II BMV decoding support
262 - OS X Video Decoder Acceleration (VDA) support
263 - CRI ADX audio format muxer and demuxer
264 - Playstation Portable PMP format demuxer
265 - PCM format support in OMA demuxer
267 - Dxtory capture format decoder
268 - v410 QuickTime uncompressed 4:4:4 10-bit encoder and decoder
270 - Simple segmenting muxer
277 - E-AC-3 audio encoder
278 - ac3enc: add channel coupling support
279 - floating-point sample format support for (E-)AC-3, DCA, AAC, Vorbis decoders
280 - H.264/MPEG frame-level multithreading
281 - av_metadata_* functions renamed to av_dict_* and moved to libavutil
282 - 4:4:4 H.264 decoding support
283 - 10-bit H.264 optimizations for x86
284 - bump libswscale for recently reported ABI break
289 - VP8 frame-level multithreading
290 - NEON optimizations for VP8
291 - removed a lot of deprecated API cruft
292 - FFT and IMDCT optimizations for AVX (Sandy Bridge) processors
294 - SMPTE 302M AES3 audio decoder
295 - ffmpeg no longer quits after the 'q' key is pressed; use 'ctrl+c' instead
296 - 9bit and 10bit per sample support in the H.264 decoder
301 - WebM support in Matroska de/muxer
302 - low overhead Ogg muxing
304 - VP8 de/encoding via libvpx
305 - Demuxer for On2's IVF format
306 - Pictor/PC Paint decoder
308 - libfaad2 wrapper removed
309 - DTS-ES extension (XCh) decoding support
311 - RTSP tunneling over HTTP
312 - RTP depacketization of SVQ3
313 - -strict inofficial replaced by -strict unofficial
314 - ffplay -exitonkeydown and -exitonmousedown options added
315 - native GSM / GSM MS decoder
316 - RTP depacketization of QDM2
317 - ANSI/ASCII art playback system
318 - Lego Mindstorms RSO de/muxer
319 - SubRip subtitle file muxer and demuxer
320 - Chinese AVS encoding via libxavs
321 - ffprobe -show_packets option added
322 - RTP packetization of Theora and Vorbis
323 - RTP depacketization of MP4A-LATM
324 - RTP packetization and depacketization of VP8
326 - Apple HTTP Live Streaming demuxer
329 - G.722 ADPCM audio encoder/decoder
332 - frei0r wrapper filter
333 - change crop filter syntax to width:height:x:y
334 - make the crop filter accept parametric expressions
335 - make ffprobe accept AVFormatContext options
338 - Demuxer for Leitch/Harris' VR native stream format (LXF)
339 - RTP depacketization of the X-QT QuickTime format
340 - SAP (Session Announcement Protocol, RFC 2974) muxer and demuxer
342 - ffmpeg -crop* options removed
343 - transpose filter added
344 - ffmpeg -force_key_frames option added
345 - demuxer for receiving raw rtp:// URLs without an SDP description
346 - single stream LATM/LOAS decoder
347 - setpts filter added
348 - Win64 support for optimized x86 assembly functions
349 - MJPEG/AVI1 to JPEG/JFIF bitstream filter
350 - ASS subtitle encoder and decoder
351 - IEC 61937 encapsulation for E-AC-3, TrueHD, DTS-HD (for HDMI passthrough)
352 - overlay filter added
353 - rename aspect filter to setdar, and pixelaspect to setsar
355 - Mobotix .mxg demuxer
356 - frei0r source added
357 - hqdn3d filter added
358 - RTP depacketization of QCELP
360 - gradfun filter added
362 - replace the ocv_smooth filter with a more generic ocv filter
363 - Windows Televison (WTV) demuxer
364 - FFmpeg metadata format muxer and demuxer
365 - SubRip (srt) subtitle decoder
366 - floating-point AC-3 encoder added
368 - ffmpeg -copytb option added
370 - Wing Commander IV movies decoder added
372 - Bink version 'b' audio and video decoder
373 - Bitmap Brothers JV playback system
374 - Apple HTTP Live Streaming protocol handler
375 - sndio support for playback and record
376 - Linux framebuffer input device added
377 - Chronomaster DFA decoder
378 - Mobotix MxPEG decoder
379 - AAC encoding via libvo-aacenc
380 - AMR-WB encoding via libvo-amrwbenc
382 - fieldorder video filter added
387 - PB-frame decoding for H.263
388 - deprecated vhook subsystem removed
389 - deprecated old scaler removed
391 - Alpha channel scaler
393 - RTP packetization of H.263
394 - RTP packetization of AMR
395 - RTP depacketization of Vorbis
396 - CorePNG decoding support
397 - Cook multichannel decoding support
398 - introduced avlanguage helpers in libavformat
399 - 8088flex TMV demuxer and decoder
400 - per-stream language-tags extraction in asfdec
401 - V210 decoder and encoder
402 - remaining GPL parts in AC-3 decoder converted to LGPL
404 - SoX native format muxer and demuxer
405 - AMR-NB decoding/encoding, AMR-WB decoding via OpenCORE libraries
407 - Electronic Arts Madcow decoder
408 - DivX (XSUB) subtitle encoder
409 - nonfree libamr support for AMR-NB/WB decoding/encoding removed
410 - experimental AAC encoder
411 - RTP depacketization of ASF and RTSP from WMS servers
412 - RTMP support in libavformat
413 - noX handling for OPT_BOOL X options
415 - IEC-61937 compatible Muxer
417 - Bluray (PGS) subtitle decoder
418 - LPCM support in MPEG-TS (HDMV RID as found on Blu-ray disks)
420 - Core Audio Format demuxer
422 - MD STUDIO audio demuxer
423 - RF64 support in WAV demuxer
424 - MPEG-4 Audio Lossless Coding (ALS) decoder
425 - -formats option split into -formats, -codecs, -bsfs, and -protocols
427 - CDG demuxer and decoder
429 - Auravision Aura 1 and 2 decoders
430 - Deluxe Paint Animation playback system
432 - Adobe Filmstrip muxer and demuxer
433 - RTP depacketization of H.263
434 - Bink demuxer and audio/video decoders
435 - enable symbol versioning by default for linkers that support it
436 - IFF PBM/ILBM bitmap decoder
439 - RTP depacketization of AMR
445 - Kega Game Video (KGV1) decoder
446 - VorbisComment writing for FLAC, Ogg FLAC and Ogg Speex files
447 - RTP depacketization of Theora
448 - HTTP Digest authentication
449 - RTMP/RTMPT/RTMPS/RTMPE/RTMPTE protocol support via librtmp
450 - Psygnosis YOP demuxer and video decoder
451 - spectral extension support in the E-AC-3 decoder
452 - unsharp video filter
453 - RTP hinting in the mov/3gp/mp4 muxer
454 - Dirac in Ogg demuxing
455 - seek to keyframes in Ogg
456 - 4:2:2 and 4:4:4 Theora decoding
457 - 35% faster VP3/Theora decoding
458 - faster AAC decoding
459 - faster H.264 decoding
460 - RealAudio 1.0 (14.4K) encoder
465 - DV50 AKA DVCPRO50 encoder, decoder, muxer and demuxer
466 - TechSmith Camtasia (TSCC) video decoder
467 - IBM Ultimotion (ULTI) video decoder
468 - Sierra Online audio file demuxer and decoder
469 - Apple QuickDraw (qdrw) video decoder
470 - Creative ADPCM audio decoder (16 bits as well as 8 bits schemes)
471 - Electronic Arts Multimedia (WVE/UV2/etc.) file demuxer
472 - Miro VideoXL (VIXL) video decoder
473 - H.261 video encoder
475 - Nullsoft Video (NSV) file demuxer
476 - Shorten audio decoder
478 - Apple Lossless Audio Codec (ALAC) decoder
479 - Winnov WNV1 video decoder
480 - Autodesk Animator Studio Codec (AASC) decoder
481 - Indeo 2 video decoder
482 - Fraps FPS1 video decoder
483 - Snow video encoder/decoder
484 - Sonic audio encoder/decoder
485 - Vorbis audio decoder
486 - Macromedia ADPCM decoder
487 - Duck TrueMotion 2 video decoder
488 - support for decoding FLX and DTA extensions in FLIC files
489 - H.264 custom quantization matrices support
490 - ffserver fixed, it should now be usable again
492 - Real Cooker audio decoder
493 - TrueSpeech audio decoder
494 - WMA2 audio decoder fixed, now all files should play correctly
495 - RealAudio 14.4 and 28.8 decoders fixed
497 - build system improvements
498 - tabs and trailing whitespace removed from the codebase
499 - CamStudio video decoder
500 - AIFF/AIFF-C audio format, encoding and decoding
501 - ADTS AAC file reading and writing
502 - Creative VOC file reading and writing
503 - American Laser Games multimedia (*.mm) playback system
504 - Zip Motion Blocks Video decoder
505 - improved Theora/VP3 decoder
506 - True Audio (TTA) decoder
507 - AVS demuxer and video decoder
509 - Smacker demuxer and decoder
510 - NuppelVideo/MythTV demuxer and RTjpeg decoder
512 - MPEG-2 intra VLC support
513 - MPEG-2 4:2:2 encoder
514 - Flash Screen Video decoder
516 - Chinese AVS decoder
519 - VC-1/WMV3/WMV9 video decoder
522 - VMware video decoder
525 - WavPack lossless audio decoder
526 - Targa (.TGA) picture decoder
527 - Vorbis audio encoder
528 - Delphine Software .cin demuxer/audio and video decoder
529 - Tiertex .seq demuxer/video decoder
531 - TIFF picture encoder and decoder
532 - GIF picture decoder
533 - Intel Music Coder decoder
534 - Zip Motion Blocks Video encoder
536 - Flash Screen Video encoder
537 - Theora encoding via libtheora
540 - GSM-MS encoder and decoder
542 - DXA demuxer and decoder
544 - Gamecube movie (.THP) playback system
545 - Blackfin optimizations
546 - Interplay C93 demuxer and video decoder
547 - Bethsoft VID demuxer and video decoder
550 - V.Flash PTX decoder
551 - RoQ muxer, RoQ audio encoder
552 - Renderware TXD demuxer and decoder
553 - extern C declarations for C++ removed from headers
554 - sws_flags command line option
558 - OS/2 support removed and restored again
561 - additional SPARC (VIS) optimizations
563 - slice-based parallel H.264 decoding
564 - Monkey's Audio demuxer and decoder
565 - AMV audio and video decoder
567 - H.264 PAFF decoding
568 - Nellymoser ASAO decoder
569 - Beam Software SIFF demuxer and decoder
570 - libvorbis Vorbis decoding removed in favor of native decoder
571 - IntraX8 (J-Frame) subdecoder for WMV2 and VC-1
572 - Ogg (Theora, Vorbis and FLAC) muxer
573 - The "device" muxers and demuxers are now in a new libavdevice library
574 - PC Paintbrush PCX decoder
575 - Sun Rasterfile decoder
576 - TechnoTrend PVA demuxer
577 - Linux Media Labs MPEG-4 (LMLM4) demuxer
578 - AVM2 (Flash 9) SWF muxer
579 - QT variant of IMA ADPCM encoder
581 - iPod/iPhone compatible mp4 muxer
583 - MSN TCP Webcam stream demuxer
584 - RL2 demuxer / decoder
587 - non-recursive Makefiles
589 - MAXIS EA XA (.xa) demuxer / decoder
593 - Electronic Arts CMV decoder
594 - Motion Pixels Video decoder
595 - Motion Pixels MVI demuxer
596 - removed animated GIF decoder/demuxer
597 - D-Cinema audio muxer
598 - Electronic Arts TGV decoder
599 - Apple Lossless Audio Codec (ALAC) encoder
601 - floating point PCM encoder/decoder
603 - DV100 AKA DVCPRO HD decoder and demuxer
604 - E-AC-3 support added to AC-3 decoder
605 - Nellymoser ASAO encoder
606 - ASS and SSA demuxer and muxer
607 - liba52 wrapper removed
608 - SVQ3 watermark decoding support
609 - Speex decoding via libspeex
610 - Electronic Arts TGQ decoder
612 - QCELP / PureVoice decoder
614 - hybrid WavPack support
615 - R3D REDCODE demuxer
616 - ALSA support for playback and record
617 - Electronic Arts TQI decoder
618 - OpenJPEG based JPEG 2000 decoder
619 - NC (NC4600) camera file demuxer
620 - Gopher client support
622 - generic metadata API
627 - DV encoder, DV muxer
628 - Microsoft RLE video decoder
629 - Microsoft Video-1 decoder
630 - Apple Animation (RLE) decoder
631 - Apple Graphics (SMC) decoder
632 - Apple Video (RPZA) decoder
634 - Sega FILM (CPK) file demuxer
635 - Westwood multimedia support (VQA & AUD files)
636 - Id Quake II CIN playback support
638 - FLIC playback support
639 - RealVideo 2.0 (RV20) decoder
640 - Duck TrueMotion v1 (DUCK) video decoder
641 - Sierra VMD demuxer and video decoder
642 - MSZH and ZLIB decoder support
646 - rate distortion optimal cbp support
647 - rate distorted optimal ac prediction for MPEG-4
648 - rate distorted optimal lambda->qp support
649 - AAC encoding with libfaac
650 - Sunplus JPEG codec (SP5X) support
651 - use Lagrange multipler instead of QP for ratecontrol
652 - Theora/VP3 decoding support
653 - XA and ADX ADPCM codecs
654 - export MPEG-2 active display area / pan scan
655 - Add support for configuring with IBM XLC
656 - floating point AAN DCT
657 - initial support for zygo video (not complete)
659 - new audio/video parser API
661 - av_read_frame() and av_seek_frame() support
662 - missing last frame fixes
663 - seek by mouse in ffplay
664 - noise reduction of DCT coefficients
665 - H.263 OBMC & 4MV support
666 - H.263 alternative inter vlc support
668 - H.263 slice structured mode
669 - interlaced DCT support for MPEG-2 encoding
670 - stuffing to stay above min_bitrate
671 - MB type & QP visualization
672 - frame stepping for ffplay
673 - interlaced motion estimation
674 - alternate scantable support
675 - SVCD scan offset support
678 - quantizer noise shaping
679 - G.726 ADPCM audio codec
681 - multithreaded/SMP motion estimation
682 - multithreaded/SMP encoding for MPEG-1/MPEG-2/MPEG-4/H.263
683 - multithreaded/SMP decoding for MPEG-2
685 - Metrowerks CodeWarrior suppport
686 - H.263+ custom pcf support
687 - nicer output for 'ffmpeg -formats'
689 - SGI image format, encoding and decoding
690 - H.264 loop filter support
691 - H.264 CABAC support
692 - nicer looking arrows for the motion vector visualization
693 - improved VCD support
694 - audio timestamp drift compensation
695 - MPEG-2 YUV 422/444 support
696 - polyphase kaiser windowed sinc and blackman nuttall windowed sinc audio resample
697 - better image scaling
699 - correctly interleave packets during encoding
700 - VIS optimized motion compensation
701 - intra_dc_precision>0 encoding support
702 - support reuse of motion vectors/MB types/field select values of the source video
703 - more accurate deblock filter
705 - many optimizations and bugfixes
706 - FunCom ISS audio file demuxer and according ADPCM decoding
711 - MPEG-2 video encoding (Michael)
712 - Id RoQ playback subsystem (Mike Melanson and Tim Ferguson)
713 - Wing Commander III Movie (.mve) file playback subsystem (Mike Melanson
715 - Xan DPCM audio decoder (Mario Brito)
716 - Interplay MVE playback subsystem (Mike Melanson)
717 - Duck DK3 and DK4 ADPCM audio decoders (Mike Melanson)
722 - RealAudio 1.0 (14_4) and 2.0 (28_8) native decoders. Author unknown, code from mplayerhq
723 (originally from public domain player for Amiga at http://www.honeypot.net/audio)
724 - current version now also compiles with older GCC (Fabrice)
725 - 4X multimedia playback system including 4xm file demuxer (Mike
726 Melanson), and 4X video and audio codecs (Michael)
727 - Creative YUV (CYUV) decoder (Mike Melanson)
728 - FFV1 codec (our very simple lossless intra only codec, compresses much better
729 than HuffYUV) (Michael)
730 - ASV1 (Asus), H.264, Intel indeo3 codecs have been added (various)
731 - tiny PNG encoder and decoder, tiny GIF decoder, PAM decoder (PPM with
732 alpha support), JPEG YUV colorspace support. (Fabrice Bellard)
733 - ffplay has been replaced with a newer version which uses SDL (optionally)
734 for multiplatform support (Fabrice)
735 - Sorenson Version 3 codec (SVQ3) support has been added (decoding only) - donated
737 - AMR format has been added (Johannes Carlsson)
738 - 3GP support has been added (Johannes Carlsson)
739 - VP3 codec has been added (Mike Melanson)
740 - more MPEG-1/2 fixes
741 - better multiplatform support, MS Visual Studio fixes (various)
742 - AltiVec optimizations (Magnus Damn and others)
743 - SH4 processor support has been added (BERO)
744 - new public interfaces (avcodec_get_pix_fmt) (Roman Shaposhnick)
745 - VOB streaming support (Brian Foley)
746 - better MP3 autodetection (Andriy Rysin)
747 - qpel encoding (Michael)
748 - 4mv+b frames encoding finally fixed (Michael)
749 - chroma ME (Michael)
750 - 5 comparison functions for ME (Michael)
751 - B-frame encoding speedup (Michael)
752 - WMV2 codec (unfinished - Michael)
753 - user specified diamond size for EPZS (Michael)
754 - Playstation STR playback subsystem, still experimental (Mike and Michael)
755 - ASV2 codec (Michael)
756 - CLJR decoder (Alex)
758 .. And lots more new enhancements and fixes.
763 - completely new integer only MPEG audio layer 1/2/3 decoder rewritten
765 - Recoded DCT and motion vector search with gcc (no longer depends on nasm)
766 - fix quantization bug in AC3 encoder
767 - added PCM codecs and format. Corrected WAV/AVI/ASF PCM issues
768 - added prototype ffplay program
769 - added GOB header parsing on H.263/H.263+ decoder (Juanjo)
770 - bug fix on MCBPC tables of H.263 (Juanjo)
771 - bug fix on DC coefficients of H.263 (Juanjo)
772 - added Advanced Prediction Mode on H.263/H.263+ decoder (Juanjo)
773 - now we can decode H.263 streams found in QuickTime files (Juanjo)
774 - now we can decode H.263 streams found in VIVO v1 files(Juanjo)
775 - preliminary RTP "friendly" mode for H.263/H.263+ coding. (Juanjo)
776 - added GOB header for H.263/H.263+ coding on RTP mode (Juanjo)
777 - now H.263 picture size is returned on the first decoded frame (Juanjo)
778 - added first regression tests
779 - added MPEG-2 TS demuxer
780 - new demux API for libav
781 - more accurate and faster IDCT (Michael)
782 - faster and entropy-controlled motion search (Michael)
783 - two pass video encoding (Michael)
784 - new video rate control (Michael)
785 - added MSMPEG4V1, MSMPEGV2 and WMV1 support (Michael)
786 - great performance improvement of video encoders and decoders (Michael)
787 - new and faster bit readers and vlc parsers (Michael)
788 - high quality encoding mode: tries all macroblock/VLC types (Michael)
789 - added DV video decoder
790 - preliminary RTP/RTSP support in ffserver and libavformat
791 - H.263+ AIC decoding/encoding support (Juanjo)
792 - VCD MPEG-PS mode (Juanjo)
793 - PSNR stuff (Juanjo)
794 - simple stats output (Juanjo)
795 - 16-bit and 15-bit RGB/BGR/GBR support (Bisqwit)
800 - some header fixes (Zdenek Kabelac <kabi at informatics.muni.cz>)
801 - many MMX optimizations (Nick Kurshev <nickols_k at mail.ru>)
802 - added configure system (actually a small shell script)
803 - added MPEG audio layer 1/2/3 decoding using LGPL'ed mpglib by
804 Michael Hipp (temporary solution - waiting for integer only
806 - fixed VIDIOCSYNC interrupt
807 - added Intel H.263 decoding support ('I263' AVI fourCC)
808 - added Real Video 1.0 decoding (needs further testing)
809 - simplified image formats again. Added PGM format (=grey
810 pgm). Renamed old PGM to PGMYUV.
811 - fixed msmpeg4 slice issues (tell me if you still find problems)
812 - fixed OpenDivX bugs with newer versions (added VOL header decoding)
813 - added support for MPlayer interface
814 - added macroblock skip optimization
815 - added MJPEG decoder
816 - added mmx/mmxext IDCT from libmpeg2
817 - added pgmyuvpipe, ppm, and ppm_pipe formats (original patch by Celer
818 <celer at shell.scrypt.net>)
819 - added pixel format conversion layer (e.g. for MJPEG or PPM)
820 - added deinterlacing option
822 - MPEG-4 vol header fixes (Jonathan Marsden <snmjbm at pacbell.net>)
823 - ARM optimizations (Lionel Ulmer <lionel.ulmer at free.fr>).
824 - Windows porting of file converter
825 - added MJPEG raw format (input/ouput)
826 - added JPEG image format support (input/output)
831 - fixed some std header definitions (Bjorn Lindgren
832 <bjorn.e.lindgren at telia.com>).
833 - added MPEG demuxer (MPEG-1 and 2 compatible).
835 - added prototype RM demuxer
836 - added AC3 decoding (done with libac3 by Aaron Holtzman)
837 - added decoding codec parameter guessing (.e.g. for MPEG, because the
838 header does not include them)
839 - fixed header generation in MPEG-1, AVI and ASF muxer: wmplayer can now
840 play them (only tested video)
841 - fixed H.263 white bug
842 - fixed phase rounding in img resample filter
843 - add MMX code for polyphase img resample filter
844 - added CPU autodetection
845 - added generic title/author/copyright/comment string handling (ASF and RM
847 - added SWF demux to extract MP3 track (not usable yet because no MP3
849 - added fractional frame rate support
850 - codecs are no longer searched by read_header() (should fix ffserver
856 - BGR24 patch (initial patch by Jeroen Vreeken <pe1rxq at amsat.org>)
857 - fixed raw yuv output
858 - added motion rounding support in MPEG-4
859 - fixed motion bug rounding in MSMPEG4
860 - added B-frame handling in video core
861 - added full MPEG-1 decoding support
862 - added partial (frame only) MPEG-2 support
863 - changed the FOURCC code for H.263 to "U263" to be able to see the
864 +AVI/H.263 file with the UB Video H.263+ decoder. MPlayer works with
865 this +codec ;) (JuanJo).
866 - Halfpel motion estimation after MB type selection (JuanJo)
867 - added pgm and .Y.U.V output format
868 - suppressed 'img:' protocol. Simply use: /tmp/test%d.[pgm|Y] as input or
870 - added pgmpipe I/O format (original patch from Martin Aumueller
871 <lists at reserv.at>, but changed completely since we use a format
872 instead of a protocol)
877 - added H.263/MPEG-4/MSMPEG4 decoding support. MPEG-4 decoding support
878 (for OpenDivX) is almost complete: 8x8 MVs and rounding are
879 missing. MSMPEG4 support is complete.
880 - added prototype MPEG-1 decoder. Only I- and P-frames handled yet (it
881 can decode ffmpeg MPEGs :-)).
882 - added libavcodec API documentation (see apiexample.c).
883 - fixed image polyphase bug (the bottom of some images could be
885 - added support for non clipped motion vectors (decoding only)
886 and image sizes non-multiple of 16
887 - added support for AC prediction (decoding only)
888 - added file overwrite confirmation (can be disabled with -y)
889 - added custom size picture to H.263 using H.263+ (Juanjo)
894 - added MSMPEG4 (aka DivX) compatible encoder. Changed default codec
895 of AVI and ASF to DIV3.
896 - added -me option to set motion estimation method
897 (default=log). suppressed redundant -hq option.
898 - added options -acodec and -vcodec to force a given codec (useful for
901 - improved dct_quantize speed
902 - factorized some motion estimation code
907 - removing grab code from ffserver and moved it to ffmpeg. Added
908 multistream support to ffmpeg.
909 - added timeshifting support for live feeds (option ?date=xxx in the
911 - added high quality image resize code with polyphase filter (need
912 mmx/see optimization). Enable multiple image size support in ffserver.
913 - added multi live feed support in ffserver
914 - suppressed master feature from ffserver (it should be done with an
915 external program which opens the .ffm url and writes it to another
917 - added preliminary support for video stream parsing (WAV and AVI half
918 done). Added proper support for audio/video file conversion in
920 - added preliminary support for video file sending from ffserver
921 - redesigning I/O subsystem: now using URL based input and output
923 - added WAV format support
924 - added "tty user interface" to ffmpeg to stop grabbing gracefully
925 - added MMX/SSE optimizations to SAD (Sums of Absolutes Differences)
926 (Juan J. Sierralta P. a.k.a. "Juanjo" <juanjo at atmlab.utfsm.cl>)
927 - added MMX DCT from mpeg2_movie 1.5 (Juanjo)
928 - added new motion estimation algorithms, log and phods (Juanjo)
929 - changed directories: libav for format handling, libavcodec for
935 - added stereo in MPEG audio encoder
940 - added 'high quality' mode which use motion vectors. It can be used in
941 real time at low resolution.
942 - fixed rounding problems which caused quality problems at high
943 bitrates and large GOP size
946 version 0.3.2: small fixes
952 version 0.3.1: added avi/divx support
955 - added MPEG-4 codec compatible with OpenDivX. It is based on the H.263 codec
956 - added sound for flash format (not tested)
959 version 0.3: initial public release