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
17 - LucasArts SMUSH SANM video decoder
18 - LucasArts SMUSH VIMA audio decoder (ADPCM)
23 - support ID3v2 tags in ASF files
24 - reference-counting for AVFrame and AVPacket data
25 - avconv now fails when input options are used for output file
27 - avconv options -filter_script and -filter_complex_script, which allow a
28 filtergraph description to be read from a file
29 - uniform options syntax across all filters
32 - asetpts filter (same as setpts, but for audio)
33 - trim and atrim filters
34 - avconv -t and -ss (output-only) options are now sample-accurate when
36 - Matroska muxer can now put the index at the beginning of the file.
37 - avconv -deinterlace option removed, the yadif filter should be used instead
38 - Apple Intermediate Codec decoder
39 - Escape 130 video decoder
40 - support for slice multithreading in libavfilter
41 - VC-1 interlaced B-frame support
42 - support for WavPack muxing (raw and in Matroska)
44 - WavPack encoding through libwavpack
45 - Added the -n parameter to avconv
47 - when transcoding with avconv (i.e. not streamcopying), -ss is now accurate
48 even when used as an input option. Previous behavior can be restored with
49 the -noaccurate_seek option.
50 - avconv -t option can now be used for inputs, to limit the duration of
51 data read from an input file
52 - Voxware MetaSound decoder
54 - Error Resilient AAC syntax (ER AAC LC) decoding
55 - Low Delay AAC (ER AAC LD) decoding
56 - mux chapters in ASF files
57 - Opus in Ogg demuxing
58 - Enhanced Low Delay AAC (ER AAC ELD) decoding (no LD SBR support)
60 - HNM version 4 demuxer and video decoder
62 - raw HEVC, HEVC in MOV/MP4, HEVC in Matroska, HEVC in MPEG-TS demuxing
63 - remove avplay -vismv option, which has not worked for a long time
65 - setsar/setdar filters now support variables in ratio expressions
66 - dar variable in the scale filter now returns the actual DAR (i.e. a * sar)
68 - support for decoding through VDPAU in avconv (the -hwaccel option)
69 - remove mp3_header_(de)compress bitstream filters
70 - stereoscopic 3d metadata handling
71 - png standalone parser
72 - WebP encoding via libwebp
75 - Mirillis FIC video decoder
77 - compand audio filter
81 - av_basename and av_dirname
82 - adobe and limelight publisher authentication in RTMP
83 - VDPAU hardware acceleration through normal hwaccel
88 - ashowinfo audio filter
89 - 24-bit FLAC encoding
91 - deprecated the avconv -vol option. the volume filter is to be used instead.
92 - multi-channel ALAC encoding up to 7.1
93 - TAK demuxer, parser, and decoder
94 - adaptive frame-level multithreading for H.264
98 - metadata (INFO tag) support in WAV muxer
99 - support for building DLLs using MSVC
100 - remove avserver daemon mode
101 - support building on the Plan 9 operating system
102 - ffv1: support version 1.3
107 - XWD encoder and decoder
108 - Support for fragmentation in the mov/mp4 muxer
109 - ISMV (Smooth Streaming) muxer
110 - CDXL demuxer and decoder
111 - Apple ProRes encoder
112 - Sun Rasterfile Encoder
114 - ID3v2 attached pictures reading and writing
115 - WMA Lossless decoder
117 - RealAudio Lossless decoder
119 - drop support for avconv without libavfilter
120 - add libavresample audio conversion library
121 - audio filters support in libavfilter and avconv
125 - avprobe output is now standard INI or JSON. The old format can still
126 be used with -of old.
127 - Indeo Audio decoder
128 - channelsplit audio filter
129 - RTMPT protocol support
130 - iLBC encoding/decoding via libilbc
131 - Microsoft Screen 1 decoder
133 - audio channel mapping filter
134 - Microsoft ATC Screen decoder
136 - TechSmith Screen Codec 2 decoder
137 - AAC encoding via libfdk-aac
138 - Microsoft Expression Encoder Screen decoder
139 - RTMPS protocol support
140 - RTMPTS protocol support
141 - JPEG 2000 encoding support through OpenJPEG
142 - G.723.1 demuxer and decoder
143 - RTMPE protocol support
144 - RTMPTE protocol support
145 - Canopus Lossless Codec decoder
146 - avconv -shortest option is now per-output file,
147 -pass and -passlogfile are now per-output stream
149 - Microsoft Screen 2 decoder
150 - RTP depacketization of JPEG
151 - Smooth Streaming live segmenter muxer
152 - RTP packetization of JPEG
153 - Opus decoder and encoder using libopus
154 - remove -same_quant, it hasn't worked for years
155 - support for building with MSVC
166 - Automatic thread count based on detection number of (available) CPU cores
167 - Deprecate libpostproc. If desired, the switch --enable-postproc will
168 enable it but it may be removed in a later Libav release.
169 - rv34: frame-level multi-threading
170 - optimized iMDCT transform on x86 using SSE for for mpegaudiodec
176 - Flash Screen Video 2 decoder
177 - ffplay/ffprobe/ffserver renamed to avplay/avprobe/avserver
178 - ffmpeg deprecated, added avconv, which is almost the same for now, except
179 for a few incompatible changes in the options, which will hopefully make them
180 easier to use. The changes are:
181 * The options placement is now strictly enforced! While in theory the
182 options for ffmpeg should be given in [input options] -i INPUT [output
183 options] OUTPUT order, in practice it was possible to give output options
184 before the -i and it mostly worked. Except when it didn't - the behavior was
185 a bit inconsistent. In avconv, it is not possible to mix input and output
186 options. All non-global options are reset after an input or output filename.
187 * All per-file options are now truly per-file - they apply only to the next
188 input or output file and specifying different values for different files
189 will now work properly (notably -ss and -t options).
190 * All per-stream options are now truly per-stream - it is possible to
191 specify which stream(s) should a given option apply to. See the Stream
192 specifiers section in the avconv manual for details.
193 * In ffmpeg some options (like -newvideo/-newaudio/...) are irregular in the
194 sense that they're specified after the output filename instead of before,
195 like all other options. In avconv this irregularity is removed, all options
196 apply to the next input or output file.
197 * -newvideo/-newaudio/-newsubtitle options were removed. Not only were they
198 irregular and highly confusing, they were also redundant. In avconv the -map
199 option will create new streams in the output file and map input streams to
200 them. E.g. avconv -i INPUT -map 0 OUTPUT will create an output stream for
201 each stream in the first input file.
202 * The -map option now has slightly different and more powerful syntax:
203 + Colons (':') are used to separate file index/stream type/stream index
204 instead of dots. Comma (',') is used to separate the sync stream instead
205 of colon.. This is done for consistency with other options.
206 + It's possible to specify stream type. E.g. -map 0:a:2 creates an
207 output stream from the third input audio stream.
208 + Omitting the stream index now maps all the streams of the given type,
209 not just the first. E.g. -map 0:s creates output streams for all the
210 subtitle streams in the first input file.
211 + Since -map can now match multiple streams, negative mappings were
212 introduced. Negative mappings disable some streams from an already
213 defined map. E.g. '-map 0 -map -0:a:1' means 'create output streams for
214 all the stream in the first input file, except for the second audio
216 * There is a new option -c (or -codec) for choosing the decoder/encoder to
217 use, which allows to precisely specify target stream(s) consistently with
218 other options. E.g. -c:v lib264 sets the codec for all video streams, -c:a:0
219 libvorbis sets the codec for the first audio stream and -c copy copies all
220 the streams without reencoding. Old -vcodec/-acodec/-scodec options are now
222 * It is now possible to precisely specify which stream should an AVOption
223 apply to. E.g. -b:v:0 2M sets the bitrate for the first video stream, while
224 -b:a 128k sets the bitrate for all audio streams. Note that the old -ab 128k
225 syntax is deprecated and will stop working soon.
226 * -map_chapters now takes only an input file index and applies to the next
227 output file. This is consistent with how all the other options work.
228 * -map_metadata now takes only an input metadata specifier and applies to
229 the next output file. Output metadata specifier is now part of the option
230 name, similarly to the AVOptions/map/codec feature above.
231 * -metadata can now be used to set metadata on streams and chapters, e.g.
232 -metadata:s:1 language=eng sets the language of the first stream to 'eng'.
233 This made -vlang/-alang/-slang options redundant, so they were removed.
234 * -qscale option now uses stream specifiers and applies to all streams, not
235 just video. I.e. plain -qscale number would now apply to all streams. To get
236 the old behavior, use -qscale:v. Also there is now a shortcut -q for -qscale
237 and -aq is now an alias for -q:a.
238 * -vbsf/-absf/-sbsf options were removed and replaced by a -bsf option which
239 uses stream specifiers. Use -bsf:v/a/s instead of the old options.
240 * -itsscale option now uses stream specifiers, so its argument is only the
242 * -intra option was removed, use -g 0 for the same effect.
243 * -psnr option was removed, use -flags +psnr for the same effect.
244 * -vf option is now an alias to the new -filter option, which uses stream specifiers.
245 * -vframes/-aframes/-dframes options are now aliases to the new -frames option.
246 * -vtag/-atag/-stag options are now aliases to the new -tag option.
248 - Windows Media Image decoder
252 - libcdio-paranoia input device for audio CD grabbing
254 - Apple ProRes decoder
255 - CELT in Ogg demuxing
256 - VC-1 interlaced decoding
257 - lut, lutrgb, and lutyuv filters
260 - Speex encoding via libspeex
261 - 4:2:2 H.264 decoding support
262 - 4:2:2 and 4:4:4 H.264 encoding with libx264
263 - Pulseaudio input device
264 - replacement Indeo 3 decoder
265 - TLS/SSL and HTTPS protocol support
266 - AVOptions API rewritten and documented
267 - most of CODEC_FLAG2_*, some CODEC_FLAG_* and many codec-specific fields in
268 AVCodecContext deprecated. Codec private options should be used instead.
269 - Properly working defaults in libx264 wrapper, support for native presets.
270 - Encrypted OMA files support
271 - Discworld II BMV decoding support
273 - OS X Video Decoder Acceleration (VDA) support
274 - CRI ADX audio format muxer and demuxer
275 - Playstation Portable PMP format demuxer
276 - PCM format support in OMA demuxer
278 - Dxtory capture format decoder
279 - v410 QuickTime uncompressed 4:4:4 10-bit encoder and decoder
281 - Simple segmenting muxer
288 - E-AC-3 audio encoder
289 - ac3enc: add channel coupling support
290 - floating-point sample format support for (E-)AC-3, DCA, AAC, Vorbis decoders
291 - H.264/MPEG frame-level multithreading
292 - av_metadata_* functions renamed to av_dict_* and moved to libavutil
293 - 4:4:4 H.264 decoding support
294 - 10-bit H.264 optimizations for x86
295 - bump libswscale for recently reported ABI break
300 - VP8 frame-level multithreading
301 - NEON optimizations for VP8
302 - removed a lot of deprecated API cruft
303 - FFT and IMDCT optimizations for AVX (Sandy Bridge) processors
305 - SMPTE 302M AES3 audio decoder
306 - ffmpeg no longer quits after the 'q' key is pressed; use 'ctrl+c' instead
307 - 9bit and 10bit per sample support in the H.264 decoder
312 - WebM support in Matroska de/muxer
313 - low overhead Ogg muxing
315 - VP8 de/encoding via libvpx
316 - Demuxer for On2's IVF format
317 - Pictor/PC Paint decoder
319 - libfaad2 wrapper removed
320 - DTS-ES extension (XCh) decoding support
322 - RTSP tunneling over HTTP
323 - RTP depacketization of SVQ3
324 - -strict inofficial replaced by -strict unofficial
325 - ffplay -exitonkeydown and -exitonmousedown options added
326 - native GSM / GSM MS decoder
327 - RTP depacketization of QDM2
328 - ANSI/ASCII art playback system
329 - Lego Mindstorms RSO de/muxer
330 - SubRip subtitle file muxer and demuxer
331 - Chinese AVS encoding via libxavs
332 - ffprobe -show_packets option added
333 - RTP packetization of Theora and Vorbis
334 - RTP depacketization of MP4A-LATM
335 - RTP packetization and depacketization of VP8
337 - Apple HTTP Live Streaming demuxer
340 - G.722 ADPCM audio encoder/decoder
343 - frei0r wrapper filter
344 - change crop filter syntax to width:height:x:y
345 - make the crop filter accept parametric expressions
346 - make ffprobe accept AVFormatContext options
349 - Demuxer for Leitch/Harris' VR native stream format (LXF)
350 - RTP depacketization of the X-QT QuickTime format
351 - SAP (Session Announcement Protocol, RFC 2974) muxer and demuxer
353 - ffmpeg -crop* options removed
354 - transpose filter added
355 - ffmpeg -force_key_frames option added
356 - demuxer for receiving raw rtp:// URLs without an SDP description
357 - single stream LATM/LOAS decoder
358 - setpts filter added
359 - Win64 support for optimized x86 assembly functions
360 - MJPEG/AVI1 to JPEG/JFIF bitstream filter
361 - ASS subtitle encoder and decoder
362 - IEC 61937 encapsulation for E-AC-3, TrueHD, DTS-HD (for HDMI passthrough)
363 - overlay filter added
364 - rename aspect filter to setdar, and pixelaspect to setsar
366 - Mobotix .mxg demuxer
367 - frei0r source added
368 - hqdn3d filter added
369 - RTP depacketization of QCELP
371 - gradfun filter added
373 - replace the ocv_smooth filter with a more generic ocv filter
374 - Windows Televison (WTV) demuxer
375 - FFmpeg metadata format muxer and demuxer
376 - SubRip (srt) subtitle decoder
377 - floating-point AC-3 encoder added
379 - ffmpeg -copytb option added
381 - Wing Commander IV movies decoder added
383 - Bink version 'b' audio and video decoder
384 - Bitmap Brothers JV playback system
385 - Apple HTTP Live Streaming protocol handler
386 - sndio support for playback and record
387 - Linux framebuffer input device added
388 - Chronomaster DFA decoder
389 - Mobotix MxPEG decoder
390 - AAC encoding via libvo-aacenc
391 - AMR-WB encoding via libvo-amrwbenc
393 - fieldorder video filter added
398 - PB-frame decoding for H.263
399 - deprecated vhook subsystem removed
400 - deprecated old scaler removed
402 - Alpha channel scaler
404 - RTP packetization of H.263
405 - RTP packetization of AMR
406 - RTP depacketization of Vorbis
407 - CorePNG decoding support
408 - Cook multichannel decoding support
409 - introduced avlanguage helpers in libavformat
410 - 8088flex TMV demuxer and decoder
411 - per-stream language-tags extraction in asfdec
412 - V210 decoder and encoder
413 - remaining GPL parts in AC-3 decoder converted to LGPL
415 - SoX native format muxer and demuxer
416 - AMR-NB decoding/encoding, AMR-WB decoding via OpenCORE libraries
418 - Electronic Arts Madcow decoder
419 - DivX (XSUB) subtitle encoder
420 - nonfree libamr support for AMR-NB/WB decoding/encoding removed
421 - experimental AAC encoder
422 - RTP depacketization of ASF and RTSP from WMS servers
423 - RTMP support in libavformat
424 - noX handling for OPT_BOOL X options
426 - IEC-61937 compatible Muxer
428 - Bluray (PGS) subtitle decoder
429 - LPCM support in MPEG-TS (HDMV RID as found on Blu-ray disks)
431 - Core Audio Format demuxer
433 - MD STUDIO audio demuxer
434 - RF64 support in WAV demuxer
435 - MPEG-4 Audio Lossless Coding (ALS) decoder
436 - -formats option split into -formats, -codecs, -bsfs, and -protocols
438 - CDG demuxer and decoder
440 - Auravision Aura 1 and 2 decoders
441 - Deluxe Paint Animation playback system
443 - Adobe Filmstrip muxer and demuxer
444 - RTP depacketization of H.263
445 - Bink demuxer and audio/video decoders
446 - enable symbol versioning by default for linkers that support it
447 - IFF PBM/ILBM bitmap decoder
450 - RTP depacketization of AMR
456 - Kega Game Video (KGV1) decoder
457 - VorbisComment writing for FLAC, Ogg FLAC and Ogg Speex files
458 - RTP depacketization of Theora
459 - HTTP Digest authentication
460 - RTMP/RTMPT/RTMPS/RTMPE/RTMPTE protocol support via librtmp
461 - Psygnosis YOP demuxer and video decoder
462 - spectral extension support in the E-AC-3 decoder
463 - unsharp video filter
464 - RTP hinting in the mov/3gp/mp4 muxer
465 - Dirac in Ogg demuxing
466 - seek to keyframes in Ogg
467 - 4:2:2 and 4:4:4 Theora decoding
468 - 35% faster VP3/Theora decoding
469 - faster AAC decoding
470 - faster H.264 decoding
471 - RealAudio 1.0 (14.4K) encoder
476 - DV50 AKA DVCPRO50 encoder, decoder, muxer and demuxer
477 - TechSmith Camtasia (TSCC) video decoder
478 - IBM Ultimotion (ULTI) video decoder
479 - Sierra Online audio file demuxer and decoder
480 - Apple QuickDraw (qdrw) video decoder
481 - Creative ADPCM audio decoder (16 bits as well as 8 bits schemes)
482 - Electronic Arts Multimedia (WVE/UV2/etc.) file demuxer
483 - Miro VideoXL (VIXL) video decoder
484 - H.261 video encoder
486 - Nullsoft Video (NSV) file demuxer
487 - Shorten audio decoder
489 - Apple Lossless Audio Codec (ALAC) decoder
490 - Winnov WNV1 video decoder
491 - Autodesk Animator Studio Codec (AASC) decoder
492 - Indeo 2 video decoder
493 - Fraps FPS1 video decoder
494 - Snow video encoder/decoder
495 - Sonic audio encoder/decoder
496 - Vorbis audio decoder
497 - Macromedia ADPCM decoder
498 - Duck TrueMotion 2 video decoder
499 - support for decoding FLX and DTA extensions in FLIC files
500 - H.264 custom quantization matrices support
501 - ffserver fixed, it should now be usable again
503 - Real Cooker audio decoder
504 - TrueSpeech audio decoder
505 - WMA2 audio decoder fixed, now all files should play correctly
506 - RealAudio 14.4 and 28.8 decoders fixed
508 - build system improvements
509 - tabs and trailing whitespace removed from the codebase
510 - CamStudio video decoder
511 - AIFF/AIFF-C audio format, encoding and decoding
512 - ADTS AAC file reading and writing
513 - Creative VOC file reading and writing
514 - American Laser Games multimedia (*.mm) playback system
515 - Zip Motion Blocks Video decoder
516 - improved Theora/VP3 decoder
517 - True Audio (TTA) decoder
518 - AVS demuxer and video decoder
520 - Smacker demuxer and decoder
521 - NuppelVideo/MythTV demuxer and RTjpeg decoder
523 - MPEG-2 intra VLC support
524 - MPEG-2 4:2:2 encoder
525 - Flash Screen Video decoder
527 - Chinese AVS decoder
530 - VC-1/WMV3/WMV9 video decoder
533 - VMware video decoder
536 - WavPack lossless audio decoder
537 - Targa (.TGA) picture decoder
538 - Vorbis audio encoder
539 - Delphine Software .cin demuxer/audio and video decoder
540 - Tiertex .seq demuxer/video decoder
542 - TIFF picture encoder and decoder
543 - GIF picture decoder
544 - Intel Music Coder decoder
545 - Zip Motion Blocks Video encoder
547 - Flash Screen Video encoder
548 - Theora encoding via libtheora
551 - GSM-MS encoder and decoder
553 - DXA demuxer and decoder
555 - Gamecube movie (.THP) playback system
556 - Blackfin optimizations
557 - Interplay C93 demuxer and video decoder
558 - Bethsoft VID demuxer and video decoder
561 - V.Flash PTX decoder
562 - RoQ muxer, RoQ audio encoder
563 - Renderware TXD demuxer and decoder
564 - extern C declarations for C++ removed from headers
565 - sws_flags command line option
569 - OS/2 support removed and restored again
572 - additional SPARC (VIS) optimizations
574 - slice-based parallel H.264 decoding
575 - Monkey's Audio demuxer and decoder
576 - AMV audio and video decoder
578 - H.264 PAFF decoding
579 - Nellymoser ASAO decoder
580 - Beam Software SIFF demuxer and decoder
581 - libvorbis Vorbis decoding removed in favor of native decoder
582 - IntraX8 (J-Frame) subdecoder for WMV2 and VC-1
583 - Ogg (Theora, Vorbis and FLAC) muxer
584 - The "device" muxers and demuxers are now in a new libavdevice library
585 - PC Paintbrush PCX decoder
586 - Sun Rasterfile decoder
587 - TechnoTrend PVA demuxer
588 - Linux Media Labs MPEG-4 (LMLM4) demuxer
589 - AVM2 (Flash 9) SWF muxer
590 - QT variant of IMA ADPCM encoder
592 - iPod/iPhone compatible mp4 muxer
594 - MSN TCP Webcam stream demuxer
595 - RL2 demuxer / decoder
598 - non-recursive Makefiles
600 - MAXIS EA XA (.xa) demuxer / decoder
604 - Electronic Arts CMV decoder
605 - Motion Pixels Video decoder
606 - Motion Pixels MVI demuxer
607 - removed animated GIF decoder/demuxer
608 - D-Cinema audio muxer
609 - Electronic Arts TGV decoder
610 - Apple Lossless Audio Codec (ALAC) encoder
612 - floating point PCM encoder/decoder
614 - DV100 AKA DVCPRO HD decoder and demuxer
615 - E-AC-3 support added to AC-3 decoder
616 - Nellymoser ASAO encoder
617 - ASS and SSA demuxer and muxer
618 - liba52 wrapper removed
619 - SVQ3 watermark decoding support
620 - Speex decoding via libspeex
621 - Electronic Arts TGQ decoder
623 - QCELP / PureVoice decoder
625 - hybrid WavPack support
626 - R3D REDCODE demuxer
627 - ALSA support for playback and record
628 - Electronic Arts TQI decoder
629 - OpenJPEG based JPEG 2000 decoder
630 - NC (NC4600) camera file demuxer
631 - Gopher client support
633 - generic metadata API
638 - DV encoder, DV muxer
639 - Microsoft RLE video decoder
640 - Microsoft Video-1 decoder
641 - Apple Animation (RLE) decoder
642 - Apple Graphics (SMC) decoder
643 - Apple Video (RPZA) decoder
645 - Sega FILM (CPK) file demuxer
646 - Westwood multimedia support (VQA & AUD files)
647 - Id Quake II CIN playback support
649 - FLIC playback support
650 - RealVideo 2.0 (RV20) decoder
651 - Duck TrueMotion v1 (DUCK) video decoder
652 - Sierra VMD demuxer and video decoder
653 - MSZH and ZLIB decoder support
657 - rate distortion optimal cbp support
658 - rate distorted optimal ac prediction for MPEG-4
659 - rate distorted optimal lambda->qp support
660 - AAC encoding with libfaac
661 - Sunplus JPEG codec (SP5X) support
662 - use Lagrange multipler instead of QP for ratecontrol
663 - Theora/VP3 decoding support
664 - XA and ADX ADPCM codecs
665 - export MPEG-2 active display area / pan scan
666 - Add support for configuring with IBM XLC
667 - floating point AAN DCT
668 - initial support for zygo video (not complete)
670 - new audio/video parser API
672 - av_read_frame() and av_seek_frame() support
673 - missing last frame fixes
674 - seek by mouse in ffplay
675 - noise reduction of DCT coefficients
676 - H.263 OBMC & 4MV support
677 - H.263 alternative inter vlc support
679 - H.263 slice structured mode
680 - interlaced DCT support for MPEG-2 encoding
681 - stuffing to stay above min_bitrate
682 - MB type & QP visualization
683 - frame stepping for ffplay
684 - interlaced motion estimation
685 - alternate scantable support
686 - SVCD scan offset support
689 - quantizer noise shaping
690 - G.726 ADPCM audio codec
692 - multithreaded/SMP motion estimation
693 - multithreaded/SMP encoding for MPEG-1/MPEG-2/MPEG-4/H.263
694 - multithreaded/SMP decoding for MPEG-2
696 - Metrowerks CodeWarrior suppport
697 - H.263+ custom pcf support
698 - nicer output for 'ffmpeg -formats'
700 - SGI image format, encoding and decoding
701 - H.264 loop filter support
702 - H.264 CABAC support
703 - nicer looking arrows for the motion vector visualization
704 - improved VCD support
705 - audio timestamp drift compensation
706 - MPEG-2 YUV 422/444 support
707 - polyphase kaiser windowed sinc and blackman nuttall windowed sinc audio resample
708 - better image scaling
710 - correctly interleave packets during encoding
711 - VIS optimized motion compensation
712 - intra_dc_precision>0 encoding support
713 - support reuse of motion vectors/MB types/field select values of the source video
714 - more accurate deblock filter
716 - many optimizations and bugfixes
717 - FunCom ISS audio file demuxer and according ADPCM decoding
722 - MPEG-2 video encoding (Michael)
723 - Id RoQ playback subsystem (Mike Melanson and Tim Ferguson)
724 - Wing Commander III Movie (.mve) file playback subsystem (Mike Melanson
726 - Xan DPCM audio decoder (Mario Brito)
727 - Interplay MVE playback subsystem (Mike Melanson)
728 - Duck DK3 and DK4 ADPCM audio decoders (Mike Melanson)
733 - RealAudio 1.0 (14_4) and 2.0 (28_8) native decoders. Author unknown, code from mplayerhq
734 (originally from public domain player for Amiga at http://www.honeypot.net/audio)
735 - current version now also compiles with older GCC (Fabrice)
736 - 4X multimedia playback system including 4xm file demuxer (Mike
737 Melanson), and 4X video and audio codecs (Michael)
738 - Creative YUV (CYUV) decoder (Mike Melanson)
739 - FFV1 codec (our very simple lossless intra only codec, compresses much better
740 than HuffYUV) (Michael)
741 - ASV1 (Asus), H.264, Intel indeo3 codecs have been added (various)
742 - tiny PNG encoder and decoder, tiny GIF decoder, PAM decoder (PPM with
743 alpha support), JPEG YUV colorspace support. (Fabrice Bellard)
744 - ffplay has been replaced with a newer version which uses SDL (optionally)
745 for multiplatform support (Fabrice)
746 - Sorenson Version 3 codec (SVQ3) support has been added (decoding only) - donated
748 - AMR format has been added (Johannes Carlsson)
749 - 3GP support has been added (Johannes Carlsson)
750 - VP3 codec has been added (Mike Melanson)
751 - more MPEG-1/2 fixes
752 - better multiplatform support, MS Visual Studio fixes (various)
753 - AltiVec optimizations (Magnus Damn and others)
754 - SH4 processor support has been added (BERO)
755 - new public interfaces (avcodec_get_pix_fmt) (Roman Shaposhnick)
756 - VOB streaming support (Brian Foley)
757 - better MP3 autodetection (Andriy Rysin)
758 - qpel encoding (Michael)
759 - 4mv+b frames encoding finally fixed (Michael)
760 - chroma ME (Michael)
761 - 5 comparison functions for ME (Michael)
762 - B-frame encoding speedup (Michael)
763 - WMV2 codec (unfinished - Michael)
764 - user specified diamond size for EPZS (Michael)
765 - Playstation STR playback subsystem, still experimental (Mike and Michael)
766 - ASV2 codec (Michael)
767 - CLJR decoder (Alex)
769 .. And lots more new enhancements and fixes.
774 - completely new integer only MPEG audio layer 1/2/3 decoder rewritten
776 - Recoded DCT and motion vector search with gcc (no longer depends on nasm)
777 - fix quantization bug in AC3 encoder
778 - added PCM codecs and format. Corrected WAV/AVI/ASF PCM issues
779 - added prototype ffplay program
780 - added GOB header parsing on H.263/H.263+ decoder (Juanjo)
781 - bug fix on MCBPC tables of H.263 (Juanjo)
782 - bug fix on DC coefficients of H.263 (Juanjo)
783 - added Advanced Prediction Mode on H.263/H.263+ decoder (Juanjo)
784 - now we can decode H.263 streams found in QuickTime files (Juanjo)
785 - now we can decode H.263 streams found in VIVO v1 files(Juanjo)
786 - preliminary RTP "friendly" mode for H.263/H.263+ coding. (Juanjo)
787 - added GOB header for H.263/H.263+ coding on RTP mode (Juanjo)
788 - now H.263 picture size is returned on the first decoded frame (Juanjo)
789 - added first regression tests
790 - added MPEG-2 TS demuxer
791 - new demux API for libav
792 - more accurate and faster IDCT (Michael)
793 - faster and entropy-controlled motion search (Michael)
794 - two pass video encoding (Michael)
795 - new video rate control (Michael)
796 - added MSMPEG4V1, MSMPEGV2 and WMV1 support (Michael)
797 - great performance improvement of video encoders and decoders (Michael)
798 - new and faster bit readers and vlc parsers (Michael)
799 - high quality encoding mode: tries all macroblock/VLC types (Michael)
800 - added DV video decoder
801 - preliminary RTP/RTSP support in ffserver and libavformat
802 - H.263+ AIC decoding/encoding support (Juanjo)
803 - VCD MPEG-PS mode (Juanjo)
804 - PSNR stuff (Juanjo)
805 - simple stats output (Juanjo)
806 - 16-bit and 15-bit RGB/BGR/GBR support (Bisqwit)
811 - some header fixes (Zdenek Kabelac <kabi at informatics.muni.cz>)
812 - many MMX optimizations (Nick Kurshev <nickols_k at mail.ru>)
813 - added configure system (actually a small shell script)
814 - added MPEG audio layer 1/2/3 decoding using LGPL'ed mpglib by
815 Michael Hipp (temporary solution - waiting for integer only
817 - fixed VIDIOCSYNC interrupt
818 - added Intel H.263 decoding support ('I263' AVI fourCC)
819 - added Real Video 1.0 decoding (needs further testing)
820 - simplified image formats again. Added PGM format (=grey
821 pgm). Renamed old PGM to PGMYUV.
822 - fixed msmpeg4 slice issues (tell me if you still find problems)
823 - fixed OpenDivX bugs with newer versions (added VOL header decoding)
824 - added support for MPlayer interface
825 - added macroblock skip optimization
826 - added MJPEG decoder
827 - added mmx/mmxext IDCT from libmpeg2
828 - added pgmyuvpipe, ppm, and ppm_pipe formats (original patch by Celer
829 <celer at shell.scrypt.net>)
830 - added pixel format conversion layer (e.g. for MJPEG or PPM)
831 - added deinterlacing option
833 - MPEG-4 vol header fixes (Jonathan Marsden <snmjbm at pacbell.net>)
834 - ARM optimizations (Lionel Ulmer <lionel.ulmer at free.fr>).
835 - Windows porting of file converter
836 - added MJPEG raw format (input/ouput)
837 - added JPEG image format support (input/output)
842 - fixed some std header definitions (Bjorn Lindgren
843 <bjorn.e.lindgren at telia.com>).
844 - added MPEG demuxer (MPEG-1 and 2 compatible).
846 - added prototype RM demuxer
847 - added AC3 decoding (done with libac3 by Aaron Holtzman)
848 - added decoding codec parameter guessing (.e.g. for MPEG, because the
849 header does not include them)
850 - fixed header generation in MPEG-1, AVI and ASF muxer: wmplayer can now
851 play them (only tested video)
852 - fixed H.263 white bug
853 - fixed phase rounding in img resample filter
854 - add MMX code for polyphase img resample filter
855 - added CPU autodetection
856 - added generic title/author/copyright/comment string handling (ASF and RM
858 - added SWF demux to extract MP3 track (not usable yet because no MP3
860 - added fractional frame rate support
861 - codecs are no longer searched by read_header() (should fix ffserver
867 - BGR24 patch (initial patch by Jeroen Vreeken <pe1rxq at amsat.org>)
868 - fixed raw yuv output
869 - added motion rounding support in MPEG-4
870 - fixed motion bug rounding in MSMPEG4
871 - added B-frame handling in video core
872 - added full MPEG-1 decoding support
873 - added partial (frame only) MPEG-2 support
874 - changed the FOURCC code for H.263 to "U263" to be able to see the
875 +AVI/H.263 file with the UB Video H.263+ decoder. MPlayer works with
876 this +codec ;) (JuanJo).
877 - Halfpel motion estimation after MB type selection (JuanJo)
878 - added pgm and .Y.U.V output format
879 - suppressed 'img:' protocol. Simply use: /tmp/test%d.[pgm|Y] as input or
881 - added pgmpipe I/O format (original patch from Martin Aumueller
882 <lists at reserv.at>, but changed completely since we use a format
883 instead of a protocol)
888 - added H.263/MPEG-4/MSMPEG4 decoding support. MPEG-4 decoding support
889 (for OpenDivX) is almost complete: 8x8 MVs and rounding are
890 missing. MSMPEG4 support is complete.
891 - added prototype MPEG-1 decoder. Only I- and P-frames handled yet (it
892 can decode ffmpeg MPEGs :-)).
893 - added libavcodec API documentation (see apiexample.c).
894 - fixed image polyphase bug (the bottom of some images could be
896 - added support for non clipped motion vectors (decoding only)
897 and image sizes non-multiple of 16
898 - added support for AC prediction (decoding only)
899 - added file overwrite confirmation (can be disabled with -y)
900 - added custom size picture to H.263 using H.263+ (Juanjo)
905 - added MSMPEG4 (aka DivX) compatible encoder. Changed default codec
906 of AVI and ASF to DIV3.
907 - added -me option to set motion estimation method
908 (default=log). suppressed redundant -hq option.
909 - added options -acodec and -vcodec to force a given codec (useful for
912 - improved dct_quantize speed
913 - factorized some motion estimation code
918 - removing grab code from ffserver and moved it to ffmpeg. Added
919 multistream support to ffmpeg.
920 - added timeshifting support for live feeds (option ?date=xxx in the
922 - added high quality image resize code with polyphase filter (need
923 mmx/see optimization). Enable multiple image size support in ffserver.
924 - added multi live feed support in ffserver
925 - suppressed master feature from ffserver (it should be done with an
926 external program which opens the .ffm url and writes it to another
928 - added preliminary support for video stream parsing (WAV and AVI half
929 done). Added proper support for audio/video file conversion in
931 - added preliminary support for video file sending from ffserver
932 - redesigning I/O subsystem: now using URL based input and output
934 - added WAV format support
935 - added "tty user interface" to ffmpeg to stop grabbing gracefully
936 - added MMX/SSE optimizations to SAD (Sums of Absolutes Differences)
937 (Juan J. Sierralta P. a.k.a. "Juanjo" <juanjo at atmlab.utfsm.cl>)
938 - added MMX DCT from mpeg2_movie 1.5 (Juanjo)
939 - added new motion estimation algorithms, log and phods (Juanjo)
940 - changed directories: libav for format handling, libavcodec for
946 - added stereo in MPEG audio encoder
951 - added 'high quality' mode which use motion vectors. It can be used in
952 real time at low resolution.
953 - fixed rounding problems which caused quality problems at high
954 bitrates and large GOP size
957 version 0.3.2: small fixes
963 version 0.3.1: added avi/divx support
966 - added MPEG-4 codec compatible with OpenDivX. It is based on the H.263 codec
967 - added sound for flash format (not tested)
970 version 0.3: initial public release