1 Entries are sorted chronologically from oldest to youngest within each release,
2 releases are sorted from youngest to oldest.
6 - support ID3v2 tags in ASF files
7 - reference-counting for AVFrame and AVPacket data
8 - avconv now fails when input options are used for output file
10 - new avconv options -filter_script and -filter_complex_script, which allow a
11 filtergraph description to be read from a file
12 - uniform options syntax across all filters
13 - new interlace filter
15 - new asetpts filter (same as setpts, but for audio)
16 - new trim and atrim filters
17 - avconv -t and -ss (output-only) options are now sample-accurate when
19 - Matroska muxer can now put the index at the beginning of the file.
20 - avconv -deinterlace option removed, the yadif filter should be used instead
21 - Apple Intermediate Codec decoder
22 - Escape 130 video decoder
23 - support for slice multithreading in libavfilter
24 - VC-1 interlaced B-frame support
25 - support for WavPack muxing (raw and in Matroska)
27 - WavPack encoding through libwavpack
28 - Added the -n parameter to avconv
30 - when transcoding with avconv (i.e. not streamcopying), -ss is now accurate
31 even when used as an input option. Previous behavior can be restored with
32 the -noaccurate_seek option.
33 - avconv -t option can now be used for inputs, to limit the duration of
34 data read from an input file
35 - incomplete Voxware MetaSound decoder
37 - Error Resilient AAC syntax (ER AAC LC) decoding
38 - Low Delay AAC (ER AAC LD) decoding
39 - mux chapters in ASF files
40 - Opus in Ogg demuxing
41 - Enhanced Low Delay AAC (ER AAC ELD) decoding (no LD SBR support)
43 - HNM version 4 demuxer and video decoder
47 - av_basename and av_dirname
48 - adobe and limelight publisher authentication in RTMP
49 - VDPAU hardware acceleration through normal hwaccel
54 - ashowinfo audio filter
55 - 24-bit FLAC encoding
57 - deprecated the avconv -vol option. the volume filter is to be used instead.
58 - multi-channel ALAC encoding up to 7.1
59 - TAK demuxer, parser, and decoder
60 - adaptive frame-level multithreading for H.264
64 - metadata (INFO tag) support in WAV muxer
65 - support for building DLLs using MSVC
66 - remove avserver daemon mode
67 - support building on the Plan 9 operating system
68 - ffv1: support version 1.3
73 - XWD encoder and decoder
74 - Support for fragmentation in the mov/mp4 muxer
75 - ISMV (Smooth Streaming) muxer
76 - CDXL demuxer and decoder
77 - Apple ProRes encoder
78 - Sun Rasterfile Encoder
80 - ID3v2 attached pictures reading and writing
81 - WMA Lossless decoder
83 - RealAudio Lossless decoder
85 - drop support for avconv without libavfilter
86 - add libavresample audio conversion library
87 - audio filters support in libavfilter and avconv
91 - avprobe output is now standard INI or JSON. The old format can still
94 - channelsplit audio filter
95 - RTMPT protocol support
96 - iLBC encoding/decoding via libilbc
97 - Microsoft Screen 1 decoder
99 - audio channel mapping filter
100 - Microsoft ATC Screen decoder
102 - TechSmith Screen Codec 2 decoder
103 - AAC encoding via libfdk-aac
104 - Microsoft Expression Encoder Screen decoder
105 - RTMPS protocol support
106 - RTMPTS protocol support
107 - JPEG 2000 encoding support through OpenJPEG
108 - G.723.1 demuxer and decoder
109 - RTMPE protocol support
110 - RTMPTE protocol support
111 - Canopus Lossless Codec decoder
112 - avconv -shortest option is now per-output file,
113 -pass and -passlogfile are now per-output stream
115 - Microsoft Screen 2 decoder
116 - RTP depacketization of JPEG
117 - Smooth Streaming live segmenter muxer
118 - RTP packetization of JPEG
119 - Opus decoder and encoder using libopus
120 - remove -same_quant, it hasn't worked for years
121 - support for building with MSVC
132 - Automatic thread count based on detection number of (available) CPU cores
133 - Deprecate libpostproc. If desired, the switch --enable-postproc will
134 enable it but it may be removed in a later Libav release.
135 - rv34: frame-level multi-threading
136 - optimized iMDCT transform on x86 using SSE for for mpegaudiodec
142 - Flash Screen Video 2 decoder
143 - ffplay/ffprobe/ffserver renamed to avplay/avprobe/avserver
144 - ffmpeg deprecated, added avconv, which is almost the same for now, except
145 for a few incompatible changes in the options, which will hopefully make them
146 easier to use. The changes are:
147 * The options placement is now strictly enforced! While in theory the
148 options for ffmpeg should be given in [input options] -i INPUT [output
149 options] OUTPUT order, in practice it was possible to give output options
150 before the -i and it mostly worked. Except when it didn't - the behavior was
151 a bit inconsistent. In avconv, it is not possible to mix input and output
152 options. All non-global options are reset after an input or output filename.
153 * All per-file options are now truly per-file - they apply only to the next
154 input or output file and specifying different values for different files
155 will now work properly (notably -ss and -t options).
156 * All per-stream options are now truly per-stream - it is possible to
157 specify which stream(s) should a given option apply to. See the Stream
158 specifiers section in the avconv manual for details.
159 * In ffmpeg some options (like -newvideo/-newaudio/...) are irregular in the
160 sense that they're specified after the output filename instead of before,
161 like all other options. In avconv this irregularity is removed, all options
162 apply to the next input or output file.
163 * -newvideo/-newaudio/-newsubtitle options were removed. Not only were they
164 irregular and highly confusing, they were also redundant. In avconv the -map
165 option will create new streams in the output file and map input streams to
166 them. E.g. avconv -i INPUT -map 0 OUTPUT will create an output stream for
167 each stream in the first input file.
168 * The -map option now has slightly different and more powerful syntax:
169 + Colons (':') are used to separate file index/stream type/stream index
170 instead of dots. Comma (',') is used to separate the sync stream instead
171 of colon.. This is done for consistency with other options.
172 + It's possible to specify stream type. E.g. -map 0:a:2 creates an
173 output stream from the third input audio stream.
174 + Omitting the stream index now maps all the streams of the given type,
175 not just the first. E.g. -map 0:s creates output streams for all the
176 subtitle streams in the first input file.
177 + Since -map can now match multiple streams, negative mappings were
178 introduced. Negative mappings disable some streams from an already
179 defined map. E.g. '-map 0 -map -0:a:1' means 'create output streams for
180 all the stream in the first input file, except for the second audio
182 * There is a new option -c (or -codec) for choosing the decoder/encoder to
183 use, which allows to precisely specify target stream(s) consistently with
184 other options. E.g. -c:v lib264 sets the codec for all video streams, -c:a:0
185 libvorbis sets the codec for the first audio stream and -c copy copies all
186 the streams without reencoding. Old -vcodec/-acodec/-scodec options are now
188 * It is now possible to precisely specify which stream should an AVOption
189 apply to. E.g. -b:v:0 2M sets the bitrate for the first video stream, while
190 -b:a 128k sets the bitrate for all audio streams. Note that the old -ab 128k
191 syntax is deprecated and will stop working soon.
192 * -map_chapters now takes only an input file index and applies to the next
193 output file. This is consistent with how all the other options work.
194 * -map_metadata now takes only an input metadata specifier and applies to
195 the next output file. Output metadata specifier is now part of the option
196 name, similarly to the AVOptions/map/codec feature above.
197 * -metadata can now be used to set metadata on streams and chapters, e.g.
198 -metadata:s:1 language=eng sets the language of the first stream to 'eng'.
199 This made -vlang/-alang/-slang options redundant, so they were removed.
200 * -qscale option now uses stream specifiers and applies to all streams, not
201 just video. I.e. plain -qscale number would now apply to all streams. To get
202 the old behavior, use -qscale:v. Also there is now a shortcut -q for -qscale
203 and -aq is now an alias for -q:a.
204 * -vbsf/-absf/-sbsf options were removed and replaced by a -bsf option which
205 uses stream specifiers. Use -bsf:v/a/s instead of the old options.
206 * -itsscale option now uses stream specifiers, so its argument is only the
208 * -intra option was removed, use -g 0 for the same effect.
209 * -psnr option was removed, use -flags +psnr for the same effect.
210 * -vf option is now an alias to the new -filter option, which uses stream specifiers.
211 * -vframes/-aframes/-dframes options are now aliases to the new -frames option.
212 * -vtag/-atag/-stag options are now aliases to the new -tag option.
214 - Windows Media Image decoder
218 - libcdio-paranoia input device for audio CD grabbing
220 - Apple ProRes decoder
221 - CELT in Ogg demuxing
222 - VC-1 interlaced decoding
223 - lut, lutrgb, and lutyuv filters
226 - Speex encoding via libspeex
227 - 4:2:2 H.264 decoding support
228 - 4:2:2 and 4:4:4 H.264 encoding with libx264
229 - Pulseaudio input device
230 - replacement Indeo 3 decoder
231 - TLS/SSL and HTTPS protocol support
232 - AVOptions API rewritten and documented
233 - most of CODEC_FLAG2_*, some CODEC_FLAG_* and many codec-specific fields in
234 AVCodecContext deprecated. Codec private options should be used instead.
235 - Properly working defaults in libx264 wrapper, support for native presets.
236 - Encrypted OMA files support
237 - Discworld II BMV decoding support
239 - OS X Video Decoder Acceleration (VDA) support
240 - CRI ADX audio format muxer and demuxer
241 - Playstation Portable PMP format demuxer
242 - PCM format support in OMA demuxer
244 - Dxtory capture format decoder
245 - v410 QuickTime uncompressed 4:4:4 10-bit encoder and decoder
247 - Simple segmenting muxer
254 - E-AC-3 audio encoder
255 - ac3enc: add channel coupling support
256 - floating-point sample format support for (E-)AC-3, DCA, AAC, Vorbis decoders
257 - H.264/MPEG frame-level multithreading
258 - av_metadata_* functions renamed to av_dict_* and moved to libavutil
259 - 4:4:4 H.264 decoding support
260 - 10-bit H.264 optimizations for x86
261 - bump libswscale for recently reported ABI break
266 - VP8 frame-level multithreading
267 - NEON optimizations for VP8
268 - removed a lot of deprecated API cruft
269 - FFT and IMDCT optimizations for AVX (Sandy Bridge) processors
271 - SMPTE 302M AES3 audio decoder
272 - ffmpeg no longer quits after the 'q' key is pressed; use 'ctrl+c' instead
273 - 9bit and 10bit per sample support in the H.264 decoder
278 - WebM support in Matroska de/muxer
279 - low overhead Ogg muxing
281 - VP8 de/encoding via libvpx
282 - Demuxer for On2's IVF format
283 - Pictor/PC Paint decoder
285 - libfaad2 wrapper removed
286 - DTS-ES extension (XCh) decoding support
288 - RTSP tunneling over HTTP
289 - RTP depacketization of SVQ3
290 - -strict inofficial replaced by -strict unofficial
291 - ffplay -exitonkeydown and -exitonmousedown options added
292 - native GSM / GSM MS decoder
293 - RTP depacketization of QDM2
294 - ANSI/ASCII art playback system
295 - Lego Mindstorms RSO de/muxer
296 - SubRip subtitle file muxer and demuxer
297 - Chinese AVS encoding via libxavs
298 - ffprobe -show_packets option added
299 - RTP packetization of Theora and Vorbis
300 - RTP depacketization of MP4A-LATM
301 - RTP packetization and depacketization of VP8
303 - Apple HTTP Live Streaming demuxer
306 - G.722 ADPCM audio encoder/decoder
309 - frei0r wrapper filter
310 - change crop filter syntax to width:height:x:y
311 - make the crop filter accept parametric expressions
312 - make ffprobe accept AVFormatContext options
315 - Demuxer for Leitch/Harris' VR native stream format (LXF)
316 - RTP depacketization of the X-QT QuickTime format
317 - SAP (Session Announcement Protocol, RFC 2974) muxer and demuxer
319 - ffmpeg -crop* options removed
320 - transpose filter added
321 - ffmpeg -force_key_frames option added
322 - demuxer for receiving raw rtp:// URLs without an SDP description
323 - single stream LATM/LOAS decoder
324 - setpts filter added
325 - Win64 support for optimized x86 assembly functions
326 - MJPEG/AVI1 to JPEG/JFIF bitstream filter
327 - ASS subtitle encoder and decoder
328 - IEC 61937 encapsulation for E-AC-3, TrueHD, DTS-HD (for HDMI passthrough)
329 - overlay filter added
330 - rename aspect filter to setdar, and pixelaspect to setsar
332 - Mobotix .mxg demuxer
333 - frei0r source added
334 - hqdn3d filter added
335 - RTP depacketization of QCELP
337 - gradfun filter added
339 - replace the ocv_smooth filter with a more generic ocv filter
340 - Windows Televison (WTV) demuxer
341 - FFmpeg metadata format muxer and demuxer
342 - SubRip (srt) subtitle decoder
343 - floating-point AC-3 encoder added
345 - ffmpeg -copytb option added
347 - Wing Commander IV movies decoder added
349 - Bink version 'b' audio and video decoder
350 - Bitmap Brothers JV playback system
351 - Apple HTTP Live Streaming protocol handler
352 - sndio support for playback and record
353 - Linux framebuffer input device added
354 - Chronomaster DFA decoder
355 - Mobotix MxPEG decoder
356 - AAC encoding via libvo-aacenc
357 - AMR-WB encoding via libvo-amrwbenc
359 - fieldorder video filter added
364 - PB-frame decoding for H.263
365 - deprecated vhook subsystem removed
366 - deprecated old scaler removed
368 - Alpha channel scaler
370 - RTP packetization of H.263
371 - RTP packetization of AMR
372 - RTP depacketization of Vorbis
373 - CorePNG decoding support
374 - Cook multichannel decoding support
375 - introduced avlanguage helpers in libavformat
376 - 8088flex TMV demuxer and decoder
377 - per-stream language-tags extraction in asfdec
378 - V210 decoder and encoder
379 - remaining GPL parts in AC-3 decoder converted to LGPL
381 - SoX native format muxer and demuxer
382 - AMR-NB decoding/encoding, AMR-WB decoding via OpenCORE libraries
384 - Electronic Arts Madcow decoder
385 - DivX (XSUB) subtitle encoder
386 - nonfree libamr support for AMR-NB/WB decoding/encoding removed
387 - experimental AAC encoder
388 - RTP depacketization of ASF and RTSP from WMS servers
389 - RTMP support in libavformat
390 - noX handling for OPT_BOOL X options
392 - IEC-61937 compatible Muxer
394 - Bluray (PGS) subtitle decoder
395 - LPCM support in MPEG-TS (HDMV RID as found on Blu-ray disks)
397 - Core Audio Format demuxer
399 - MD STUDIO audio demuxer
400 - RF64 support in WAV demuxer
401 - MPEG-4 Audio Lossless Coding (ALS) decoder
402 - -formats option split into -formats, -codecs, -bsfs, and -protocols
404 - CDG demuxer and decoder
406 - Auravision Aura 1 and 2 decoders
407 - Deluxe Paint Animation playback system
409 - Adobe Filmstrip muxer and demuxer
410 - RTP depacketization of H.263
411 - Bink demuxer and audio/video decoders
412 - enable symbol versioning by default for linkers that support it
413 - IFF PBM/ILBM bitmap decoder
416 - RTP depacketization of AMR
422 - Kega Game Video (KGV1) decoder
423 - VorbisComment writing for FLAC, Ogg FLAC and Ogg Speex files
424 - RTP depacketization of Theora
425 - HTTP Digest authentication
426 - RTMP/RTMPT/RTMPS/RTMPE/RTMPTE protocol support via librtmp
427 - Psygnosis YOP demuxer and video decoder
428 - spectral extension support in the E-AC-3 decoder
429 - unsharp video filter
430 - RTP hinting in the mov/3gp/mp4 muxer
431 - Dirac in Ogg demuxing
432 - seek to keyframes in Ogg
433 - 4:2:2 and 4:4:4 Theora decoding
434 - 35% faster VP3/Theora decoding
435 - faster AAC decoding
436 - faster H.264 decoding
437 - RealAudio 1.0 (14.4K) encoder
442 - DV50 AKA DVCPRO50 encoder, decoder, muxer and demuxer
443 - TechSmith Camtasia (TSCC) video decoder
444 - IBM Ultimotion (ULTI) video decoder
445 - Sierra Online audio file demuxer and decoder
446 - Apple QuickDraw (qdrw) video decoder
447 - Creative ADPCM audio decoder (16 bits as well as 8 bits schemes)
448 - Electronic Arts Multimedia (WVE/UV2/etc.) file demuxer
449 - Miro VideoXL (VIXL) video decoder
450 - H.261 video encoder
452 - Nullsoft Video (NSV) file demuxer
453 - Shorten audio decoder
455 - Apple Lossless Audio Codec (ALAC) decoder
456 - Winnov WNV1 video decoder
457 - Autodesk Animator Studio Codec (AASC) decoder
458 - Indeo 2 video decoder
459 - Fraps FPS1 video decoder
460 - Snow video encoder/decoder
461 - Sonic audio encoder/decoder
462 - Vorbis audio decoder
463 - Macromedia ADPCM decoder
464 - Duck TrueMotion 2 video decoder
465 - support for decoding FLX and DTA extensions in FLIC files
466 - H.264 custom quantization matrices support
467 - ffserver fixed, it should now be usable again
469 - Real Cooker audio decoder
470 - TrueSpeech audio decoder
471 - WMA2 audio decoder fixed, now all files should play correctly
472 - RealAudio 14.4 and 28.8 decoders fixed
474 - build system improvements
475 - tabs and trailing whitespace removed from the codebase
476 - CamStudio video decoder
477 - AIFF/AIFF-C audio format, encoding and decoding
478 - ADTS AAC file reading and writing
479 - Creative VOC file reading and writing
480 - American Laser Games multimedia (*.mm) playback system
481 - Zip Motion Blocks Video decoder
482 - improved Theora/VP3 decoder
483 - True Audio (TTA) decoder
484 - AVS demuxer and video decoder
486 - Smacker demuxer and decoder
487 - NuppelVideo/MythTV demuxer and RTjpeg decoder
489 - MPEG-2 intra VLC support
490 - MPEG-2 4:2:2 encoder
491 - Flash Screen Video decoder
493 - Chinese AVS decoder
496 - VC-1/WMV3/WMV9 video decoder
499 - VMware video decoder
502 - WavPack lossless audio decoder
503 - Targa (.TGA) picture decoder
504 - Vorbis audio encoder
505 - Delphine Software .cin demuxer/audio and video decoder
506 - Tiertex .seq demuxer/video decoder
508 - TIFF picture encoder and decoder
509 - GIF picture decoder
510 - Intel Music Coder decoder
511 - Zip Motion Blocks Video encoder
513 - Flash Screen Video encoder
514 - Theora encoding via libtheora
517 - GSM-MS encoder and decoder
519 - DXA demuxer and decoder
521 - Gamecube movie (.THP) playback system
522 - Blackfin optimizations
523 - Interplay C93 demuxer and video decoder
524 - Bethsoft VID demuxer and video decoder
527 - V.Flash PTX decoder
528 - RoQ muxer, RoQ audio encoder
529 - Renderware TXD demuxer and decoder
530 - extern C declarations for C++ removed from headers
531 - sws_flags command line option
535 - OS/2 support removed and restored again
538 - additional SPARC (VIS) optimizations
540 - slice-based parallel H.264 decoding
541 - Monkey's Audio demuxer and decoder
542 - AMV audio and video decoder
544 - H.264 PAFF decoding
545 - Nellymoser ASAO decoder
546 - Beam Software SIFF demuxer and decoder
547 - libvorbis Vorbis decoding removed in favor of native decoder
548 - IntraX8 (J-Frame) subdecoder for WMV2 and VC-1
549 - Ogg (Theora, Vorbis and FLAC) muxer
550 - The "device" muxers and demuxers are now in a new libavdevice library
551 - PC Paintbrush PCX decoder
552 - Sun Rasterfile decoder
553 - TechnoTrend PVA demuxer
554 - Linux Media Labs MPEG-4 (LMLM4) demuxer
555 - AVM2 (Flash 9) SWF muxer
556 - QT variant of IMA ADPCM encoder
558 - iPod/iPhone compatible mp4 muxer
560 - MSN TCP Webcam stream demuxer
561 - RL2 demuxer / decoder
564 - non-recursive Makefiles
566 - MAXIS EA XA (.xa) demuxer / decoder
570 - Electronic Arts CMV decoder
571 - Motion Pixels Video decoder
572 - Motion Pixels MVI demuxer
573 - removed animated GIF decoder/demuxer
574 - D-Cinema audio muxer
575 - Electronic Arts TGV decoder
576 - Apple Lossless Audio Codec (ALAC) encoder
578 - floating point PCM encoder/decoder
580 - DV100 AKA DVCPRO HD decoder and demuxer
581 - E-AC-3 support added to AC-3 decoder
582 - Nellymoser ASAO encoder
583 - ASS and SSA demuxer and muxer
584 - liba52 wrapper removed
585 - SVQ3 watermark decoding support
586 - Speex decoding via libspeex
587 - Electronic Arts TGQ decoder
589 - QCELP / PureVoice decoder
591 - hybrid WavPack support
592 - R3D REDCODE demuxer
593 - ALSA support for playback and record
594 - Electronic Arts TQI decoder
595 - OpenJPEG based JPEG 2000 decoder
596 - NC (NC4600) camera file demuxer
597 - Gopher client support
599 - generic metadata API
604 - DV encoder, DV muxer
605 - Microsoft RLE video decoder
606 - Microsoft Video-1 decoder
607 - Apple Animation (RLE) decoder
608 - Apple Graphics (SMC) decoder
609 - Apple Video (RPZA) decoder
611 - Sega FILM (CPK) file demuxer
612 - Westwood multimedia support (VQA & AUD files)
613 - Id Quake II CIN playback support
615 - FLIC playback support
616 - RealVideo 2.0 (RV20) decoder
617 - Duck TrueMotion v1 (DUCK) video decoder
618 - Sierra VMD demuxer and video decoder
619 - MSZH and ZLIB decoder support
623 - rate distortion optimal cbp support
624 - rate distorted optimal ac prediction for MPEG-4
625 - rate distorted optimal lambda->qp support
626 - AAC encoding with libfaac
627 - Sunplus JPEG codec (SP5X) support
628 - use Lagrange multipler instead of QP for ratecontrol
629 - Theora/VP3 decoding support
630 - XA and ADX ADPCM codecs
631 - export MPEG-2 active display area / pan scan
632 - Add support for configuring with IBM XLC
633 - floating point AAN DCT
634 - initial support for zygo video (not complete)
636 - new audio/video parser API
638 - av_read_frame() and av_seek_frame() support
639 - missing last frame fixes
640 - seek by mouse in ffplay
641 - noise reduction of DCT coefficients
642 - H.263 OBMC & 4MV support
643 - H.263 alternative inter vlc support
645 - H.263 slice structured mode
646 - interlaced DCT support for MPEG-2 encoding
647 - stuffing to stay above min_bitrate
648 - MB type & QP visualization
649 - frame stepping for ffplay
650 - interlaced motion estimation
651 - alternate scantable support
652 - SVCD scan offset support
655 - quantizer noise shaping
656 - G.726 ADPCM audio codec
658 - multithreaded/SMP motion estimation
659 - multithreaded/SMP encoding for MPEG-1/MPEG-2/MPEG-4/H.263
660 - multithreaded/SMP decoding for MPEG-2
662 - Metrowerks CodeWarrior suppport
663 - H.263+ custom pcf support
664 - nicer output for 'ffmpeg -formats'
666 - SGI image format, encoding and decoding
667 - H.264 loop filter support
668 - H.264 CABAC support
669 - nicer looking arrows for the motion vector visualization
670 - improved VCD support
671 - audio timestamp drift compensation
672 - MPEG-2 YUV 422/444 support
673 - polyphase kaiser windowed sinc and blackman nuttall windowed sinc audio resample
674 - better image scaling
676 - correctly interleave packets during encoding
677 - VIS optimized motion compensation
678 - intra_dc_precision>0 encoding support
679 - support reuse of motion vectors/MB types/field select values of the source video
680 - more accurate deblock filter
682 - many optimizations and bugfixes
683 - FunCom ISS audio file demuxer and according ADPCM decoding
688 - MPEG-2 video encoding (Michael)
689 - Id RoQ playback subsystem (Mike Melanson and Tim Ferguson)
690 - Wing Commander III Movie (.mve) file playback subsystem (Mike Melanson
692 - Xan DPCM audio decoder (Mario Brito)
693 - Interplay MVE playback subsystem (Mike Melanson)
694 - Duck DK3 and DK4 ADPCM audio decoders (Mike Melanson)
699 - RealAudio 1.0 (14_4) and 2.0 (28_8) native decoders. Author unknown, code from mplayerhq
700 (originally from public domain player for Amiga at http://www.honeypot.net/audio)
701 - current version now also compiles with older GCC (Fabrice)
702 - 4X multimedia playback system including 4xm file demuxer (Mike
703 Melanson), and 4X video and audio codecs (Michael)
704 - Creative YUV (CYUV) decoder (Mike Melanson)
705 - FFV1 codec (our very simple lossless intra only codec, compresses much better
706 than HuffYUV) (Michael)
707 - ASV1 (Asus), H.264, Intel indeo3 codecs have been added (various)
708 - tiny PNG encoder and decoder, tiny GIF decoder, PAM decoder (PPM with
709 alpha support), JPEG YUV colorspace support. (Fabrice Bellard)
710 - ffplay has been replaced with a newer version which uses SDL (optionally)
711 for multiplatform support (Fabrice)
712 - Sorenson Version 3 codec (SVQ3) support has been added (decoding only) - donated
714 - AMR format has been added (Johannes Carlsson)
715 - 3GP support has been added (Johannes Carlsson)
716 - VP3 codec has been added (Mike Melanson)
717 - more MPEG-1/2 fixes
718 - better multiplatform support, MS Visual Studio fixes (various)
719 - AltiVec optimizations (Magnus Damn and others)
720 - SH4 processor support has been added (BERO)
721 - new public interfaces (avcodec_get_pix_fmt) (Roman Shaposhnick)
722 - VOB streaming support (Brian Foley)
723 - better MP3 autodetection (Andriy Rysin)
724 - qpel encoding (Michael)
725 - 4mv+b frames encoding finally fixed (Michael)
726 - chroma ME (Michael)
727 - 5 comparison functions for ME (Michael)
728 - B-frame encoding speedup (Michael)
729 - WMV2 codec (unfinished - Michael)
730 - user specified diamond size for EPZS (Michael)
731 - Playstation STR playback subsystem, still experimental (Mike and Michael)
732 - ASV2 codec (Michael)
733 - CLJR decoder (Alex)
735 .. And lots more new enhancements and fixes.
740 - completely new integer only MPEG audio layer 1/2/3 decoder rewritten
742 - Recoded DCT and motion vector search with gcc (no longer depends on nasm)
743 - fix quantization bug in AC3 encoder
744 - added PCM codecs and format. Corrected WAV/AVI/ASF PCM issues
745 - added prototype ffplay program
746 - added GOB header parsing on H.263/H.263+ decoder (Juanjo)
747 - bug fix on MCBPC tables of H.263 (Juanjo)
748 - bug fix on DC coefficients of H.263 (Juanjo)
749 - added Advanced Prediction Mode on H.263/H.263+ decoder (Juanjo)
750 - now we can decode H.263 streams found in QuickTime files (Juanjo)
751 - now we can decode H.263 streams found in VIVO v1 files(Juanjo)
752 - preliminary RTP "friendly" mode for H.263/H.263+ coding. (Juanjo)
753 - added GOB header for H.263/H.263+ coding on RTP mode (Juanjo)
754 - now H.263 picture size is returned on the first decoded frame (Juanjo)
755 - added first regression tests
756 - added MPEG-2 TS demuxer
757 - new demux API for libav
758 - more accurate and faster IDCT (Michael)
759 - faster and entropy-controlled motion search (Michael)
760 - two pass video encoding (Michael)
761 - new video rate control (Michael)
762 - added MSMPEG4V1, MSMPEGV2 and WMV1 support (Michael)
763 - great performance improvement of video encoders and decoders (Michael)
764 - new and faster bit readers and vlc parsers (Michael)
765 - high quality encoding mode: tries all macroblock/VLC types (Michael)
766 - added DV video decoder
767 - preliminary RTP/RTSP support in ffserver and libavformat
768 - H.263+ AIC decoding/encoding support (Juanjo)
769 - VCD MPEG-PS mode (Juanjo)
770 - PSNR stuff (Juanjo)
771 - simple stats output (Juanjo)
772 - 16-bit and 15-bit RGB/BGR/GBR support (Bisqwit)
777 - some header fixes (Zdenek Kabelac <kabi at informatics.muni.cz>)
778 - many MMX optimizations (Nick Kurshev <nickols_k at mail.ru>)
779 - added configure system (actually a small shell script)
780 - added MPEG audio layer 1/2/3 decoding using LGPL'ed mpglib by
781 Michael Hipp (temporary solution - waiting for integer only
783 - fixed VIDIOCSYNC interrupt
784 - added Intel H.263 decoding support ('I263' AVI fourCC)
785 - added Real Video 1.0 decoding (needs further testing)
786 - simplified image formats again. Added PGM format (=grey
787 pgm). Renamed old PGM to PGMYUV.
788 - fixed msmpeg4 slice issues (tell me if you still find problems)
789 - fixed OpenDivX bugs with newer versions (added VOL header decoding)
790 - added support for MPlayer interface
791 - added macroblock skip optimization
792 - added MJPEG decoder
793 - added mmx/mmxext IDCT from libmpeg2
794 - added pgmyuvpipe, ppm, and ppm_pipe formats (original patch by Celer
795 <celer at shell.scrypt.net>)
796 - added pixel format conversion layer (e.g. for MJPEG or PPM)
797 - added deinterlacing option
799 - MPEG-4 vol header fixes (Jonathan Marsden <snmjbm at pacbell.net>)
800 - ARM optimizations (Lionel Ulmer <lionel.ulmer at free.fr>).
801 - Windows porting of file converter
802 - added MJPEG raw format (input/ouput)
803 - added JPEG image format support (input/output)
808 - fixed some std header definitions (Bjorn Lindgren
809 <bjorn.e.lindgren at telia.com>).
810 - added MPEG demuxer (MPEG-1 and 2 compatible).
812 - added prototype RM demuxer
813 - added AC3 decoding (done with libac3 by Aaron Holtzman)
814 - added decoding codec parameter guessing (.e.g. for MPEG, because the
815 header does not include them)
816 - fixed header generation in MPEG-1, AVI and ASF muxer: wmplayer can now
817 play them (only tested video)
818 - fixed H.263 white bug
819 - fixed phase rounding in img resample filter
820 - add MMX code for polyphase img resample filter
821 - added CPU autodetection
822 - added generic title/author/copyright/comment string handling (ASF and RM
824 - added SWF demux to extract MP3 track (not usable yet because no MP3
826 - added fractional frame rate support
827 - codecs are no longer searched by read_header() (should fix ffserver
833 - BGR24 patch (initial patch by Jeroen Vreeken <pe1rxq at amsat.org>)
834 - fixed raw yuv output
835 - added motion rounding support in MPEG-4
836 - fixed motion bug rounding in MSMPEG4
837 - added B-frame handling in video core
838 - added full MPEG-1 decoding support
839 - added partial (frame only) MPEG-2 support
840 - changed the FOURCC code for H.263 to "U263" to be able to see the
841 +AVI/H.263 file with the UB Video H.263+ decoder. MPlayer works with
842 this +codec ;) (JuanJo).
843 - Halfpel motion estimation after MB type selection (JuanJo)
844 - added pgm and .Y.U.V output format
845 - suppressed 'img:' protocol. Simply use: /tmp/test%d.[pgm|Y] as input or
847 - added pgmpipe I/O format (original patch from Martin Aumueller
848 <lists at reserv.at>, but changed completely since we use a format
849 instead of a protocol)
854 - added H.263/MPEG-4/MSMPEG4 decoding support. MPEG-4 decoding support
855 (for OpenDivX) is almost complete: 8x8 MVs and rounding are
856 missing. MSMPEG4 support is complete.
857 - added prototype MPEG-1 decoder. Only I- and P-frames handled yet (it
858 can decode ffmpeg MPEGs :-)).
859 - added libavcodec API documentation (see apiexample.c).
860 - fixed image polyphase bug (the bottom of some images could be
862 - added support for non clipped motion vectors (decoding only)
863 and image sizes non-multiple of 16
864 - added support for AC prediction (decoding only)
865 - added file overwrite confirmation (can be disabled with -y)
866 - added custom size picture to H.263 using H.263+ (Juanjo)
871 - added MSMPEG4 (aka DivX) compatible encoder. Changed default codec
872 of AVI and ASF to DIV3.
873 - added -me option to set motion estimation method
874 (default=log). suppressed redundant -hq option.
875 - added options -acodec and -vcodec to force a given codec (useful for
878 - improved dct_quantize speed
879 - factorized some motion estimation code
884 - removing grab code from ffserver and moved it to ffmpeg. Added
885 multistream support to ffmpeg.
886 - added timeshifting support for live feeds (option ?date=xxx in the
888 - added high quality image resize code with polyphase filter (need
889 mmx/see optimization). Enable multiple image size support in ffserver.
890 - added multi live feed support in ffserver
891 - suppressed master feature from ffserver (it should be done with an
892 external program which opens the .ffm url and writes it to another
894 - added preliminary support for video stream parsing (WAV and AVI half
895 done). Added proper support for audio/video file conversion in
897 - added preliminary support for video file sending from ffserver
898 - redesigning I/O subsystem: now using URL based input and output
900 - added WAV format support
901 - added "tty user interface" to ffmpeg to stop grabbing gracefully
902 - added MMX/SSE optimizations to SAD (Sums of Absolutes Differences)
903 (Juan J. Sierralta P. a.k.a. "Juanjo" <juanjo at atmlab.utfsm.cl>)
904 - added MMX DCT from mpeg2_movie 1.5 (Juanjo)
905 - added new motion estimation algorithms, log and phods (Juanjo)
906 - changed directories: libav for format handling, libavcodec for
912 - added stereo in MPEG audio encoder
917 - added 'high quality' mode which use motion vectors. It can be used in
918 real time at low resolution.
919 - fixed rounding problems which caused quality problems at high
920 bitrates and large GOP size
923 version 0.3.2: small fixes
929 version 0.3.1: added avi/divx support
932 - added MPEG-4 codec compatible with OpenDivX. It is based on the H.263 codec
933 - added sound for flash format (not tested)
936 version 0.3: initial public release