1 Entries are sorted chronologically from oldest to youngest within each release,
2 releases are sorted from youngest to oldest.
5 - aliases and defaults for Ogg subtypes (opus, spx)
6 - HEVC/H.265 RTP payload format (draft v6) packetizer and depacketizer
7 - avplay now exits by default at the end of playback
12 - shuffleplanes filter
13 - replaygain data export
14 - Alias PIX image encoder and decoder
15 - BRender PIX image decoder
16 - Amazing Studio PAF playback support
18 - BMP standalone parser
19 - OpenEXR image decoder
20 - support encoding and decoding 4-channel SGI images
21 - support decoding 16-bit RLE SGI images
23 - LucasArts SMUSH SANM video decoder
24 - LucasArts SMUSH VIMA audio decoder (ADPCM)
25 - LucasArts SMUSH demuxer
26 - MP2 encoding via TwoLAME
28 - Silicon Graphics RLE 8-bit video decoder
29 - Silicon Graphics Motion Video Compressor 1 & 2 decoder
30 - Silicon Graphics Movie demuxer
31 - On2 AVC (Audio for Video) decoder
32 - support for decoding through DXVA2 in avconv
33 - libbs2b-based stereo-to-binaural audio filter
35 - display matrix export and rotation API
36 - drop avserver, it was unmaintained for years and largely broken
38 - request Icecast metadata by default
39 - support for using metadata in stream specifiers in avtools
45 - support ID3v2 tags in ASF files
46 - reference-counting for AVFrame and AVPacket data
47 - avconv now fails when input options are used for output file
49 - avconv options -filter_script and -filter_complex_script, which allow a
50 filtergraph description to be read from a file
51 - uniform options syntax across all filters
54 - asetpts filter (same as setpts, but for audio)
55 - trim and atrim filters
56 - avconv -t and -ss (output-only) options are now sample-accurate when
58 - Matroska muxer can now put the index at the beginning of the file.
59 - avconv -deinterlace option removed, the yadif filter should be used instead
60 - Apple Intermediate Codec decoder
61 - Escape 130 video decoder
62 - support for slice multithreading in libavfilter
63 - VC-1 interlaced B-frame support
64 - support for WavPack muxing (raw and in Matroska)
66 - WavPack encoding through libwavpack
67 - Added the -n parameter to avconv
69 - when transcoding with avconv (i.e. not streamcopying), -ss is now accurate
70 even when used as an input option. Previous behavior can be restored with
71 the -noaccurate_seek option.
72 - avconv -t option can now be used for inputs, to limit the duration of
73 data read from an input file
74 - Voxware MetaSound decoder
76 - Error Resilient AAC syntax (ER AAC LC) decoding
77 - Low Delay AAC (ER AAC LD) decoding
78 - mux chapters in ASF files
79 - Opus in Ogg demuxing
80 - Enhanced Low Delay AAC (ER AAC ELD) decoding (no LD SBR support)
82 - HNM version 4 demuxer and video decoder
84 - raw HEVC, HEVC in MOV/MP4, HEVC in Matroska, HEVC in MPEG-TS demuxing
85 - remove avplay -vismv option, which has not worked for a long time
87 - setsar/setdar filters now support variables in ratio expressions
88 - dar variable in the scale filter now returns the actual DAR (i.e. a * sar)
90 - support for decoding through VDPAU in avconv (the -hwaccel option)
91 - remove mp3_header_(de)compress bitstream filters
92 - stereoscopic 3d metadata handling
93 - png standalone parser
94 - WebP encoding via libwebp
97 - Mirillis FIC video decoder
99 - compand audio filter
103 - av_basename and av_dirname
104 - adobe and limelight publisher authentication in RTMP
105 - VDPAU hardware acceleration through normal hwaccel
110 - ashowinfo audio filter
111 - 24-bit FLAC encoding
112 - audio volume filter
113 - deprecated the avconv -vol option. the volume filter is to be used instead.
114 - multi-channel ALAC encoding up to 7.1
115 - TAK demuxer, parser, and decoder
116 - adaptive frame-level multithreading for H.264
120 - metadata (INFO tag) support in WAV muxer
121 - support for building DLLs using MSVC
122 - remove avserver daemon mode
123 - support building on the Plan 9 operating system
124 - ffv1: support version 1.3
129 - XWD encoder and decoder
130 - Support for fragmentation in the mov/mp4 muxer
131 - ISMV (Smooth Streaming) muxer
132 - CDXL demuxer and decoder
133 - Apple ProRes encoder
134 - Sun Rasterfile Encoder
136 - ID3v2 attached pictures reading and writing
137 - WMA Lossless decoder
139 - RealAudio Lossless decoder
141 - drop support for avconv without libavfilter
142 - add libavresample audio conversion library
143 - audio filters support in libavfilter and avconv
147 - avprobe output is now standard INI or JSON. The old format can still
148 be used with -of old.
149 - Indeo Audio decoder
150 - channelsplit audio filter
151 - RTMPT protocol support
152 - iLBC encoding/decoding via libilbc
153 - Microsoft Screen 1 decoder
155 - audio channel mapping filter
156 - Microsoft ATC Screen decoder
158 - TechSmith Screen Codec 2 decoder
159 - AAC encoding via libfdk-aac
160 - Microsoft Expression Encoder Screen decoder
161 - RTMPS protocol support
162 - RTMPTS protocol support
163 - JPEG 2000 encoding support through OpenJPEG
164 - G.723.1 demuxer and decoder
165 - RTMPE protocol support
166 - RTMPTE protocol support
167 - Canopus Lossless Codec decoder
168 - avconv -shortest option is now per-output file,
169 -pass and -passlogfile are now per-output stream
171 - Microsoft Screen 2 decoder
172 - RTP depacketization of JPEG
173 - Smooth Streaming live segmenter muxer
174 - RTP packetization of JPEG
175 - Opus decoder and encoder using libopus
176 - remove -same_quant, it hasn't worked for years
177 - support for building with MSVC
188 - Automatic thread count based on detection number of (available) CPU cores
189 - Deprecate libpostproc. If desired, the switch --enable-postproc will
190 enable it but it may be removed in a later Libav release.
191 - rv34: frame-level multi-threading
192 - optimized iMDCT transform on x86 using SSE for for mpegaudiodec
198 - Flash Screen Video 2 decoder
199 - ffplay/ffprobe/ffserver renamed to avplay/avprobe/avserver
200 - ffmpeg deprecated, added avconv, which is almost the same for now, except
201 for a few incompatible changes in the options, which will hopefully make them
202 easier to use. The changes are:
203 * The options placement is now strictly enforced! While in theory the
204 options for ffmpeg should be given in [input options] -i INPUT [output
205 options] OUTPUT order, in practice it was possible to give output options
206 before the -i and it mostly worked. Except when it didn't - the behavior was
207 a bit inconsistent. In avconv, it is not possible to mix input and output
208 options. All non-global options are reset after an input or output filename.
209 * All per-file options are now truly per-file - they apply only to the next
210 input or output file and specifying different values for different files
211 will now work properly (notably -ss and -t options).
212 * All per-stream options are now truly per-stream - it is possible to
213 specify which stream(s) should a given option apply to. See the Stream
214 specifiers section in the avconv manual for details.
215 * In ffmpeg some options (like -newvideo/-newaudio/...) are irregular in the
216 sense that they're specified after the output filename instead of before,
217 like all other options. In avconv this irregularity is removed, all options
218 apply to the next input or output file.
219 * -newvideo/-newaudio/-newsubtitle options were removed. Not only were they
220 irregular and highly confusing, they were also redundant. In avconv the -map
221 option will create new streams in the output file and map input streams to
222 them. E.g. avconv -i INPUT -map 0 OUTPUT will create an output stream for
223 each stream in the first input file.
224 * The -map option now has slightly different and more powerful syntax:
225 + Colons (':') are used to separate file index/stream type/stream index
226 instead of dots. Comma (',') is used to separate the sync stream instead
227 of colon.. This is done for consistency with other options.
228 + It's possible to specify stream type. E.g. -map 0:a:2 creates an
229 output stream from the third input audio stream.
230 + Omitting the stream index now maps all the streams of the given type,
231 not just the first. E.g. -map 0:s creates output streams for all the
232 subtitle streams in the first input file.
233 + Since -map can now match multiple streams, negative mappings were
234 introduced. Negative mappings disable some streams from an already
235 defined map. E.g. '-map 0 -map -0:a:1' means 'create output streams for
236 all the stream in the first input file, except for the second audio
238 * There is a new option -c (or -codec) for choosing the decoder/encoder to
239 use, which allows to precisely specify target stream(s) consistently with
240 other options. E.g. -c:v lib264 sets the codec for all video streams, -c:a:0
241 libvorbis sets the codec for the first audio stream and -c copy copies all
242 the streams without reencoding. Old -vcodec/-acodec/-scodec options are now
244 * It is now possible to precisely specify which stream should an AVOption
245 apply to. E.g. -b:v:0 2M sets the bitrate for the first video stream, while
246 -b:a 128k sets the bitrate for all audio streams. Note that the old -ab 128k
247 syntax is deprecated and will stop working soon.
248 * -map_chapters now takes only an input file index and applies to the next
249 output file. This is consistent with how all the other options work.
250 * -map_metadata now takes only an input metadata specifier and applies to
251 the next output file. Output metadata specifier is now part of the option
252 name, similarly to the AVOptions/map/codec feature above.
253 * -metadata can now be used to set metadata on streams and chapters, e.g.
254 -metadata:s:1 language=eng sets the language of the first stream to 'eng'.
255 This made -vlang/-alang/-slang options redundant, so they were removed.
256 * -qscale option now uses stream specifiers and applies to all streams, not
257 just video. I.e. plain -qscale number would now apply to all streams. To get
258 the old behavior, use -qscale:v. Also there is now a shortcut -q for -qscale
259 and -aq is now an alias for -q:a.
260 * -vbsf/-absf/-sbsf options were removed and replaced by a -bsf option which
261 uses stream specifiers. Use -bsf:v/a/s instead of the old options.
262 * -itsscale option now uses stream specifiers, so its argument is only the
264 * -intra option was removed, use -g 0 for the same effect.
265 * -psnr option was removed, use -flags +psnr for the same effect.
266 * -vf option is now an alias to the new -filter option, which uses stream specifiers.
267 * -vframes/-aframes/-dframes options are now aliases to the new -frames option.
268 * -vtag/-atag/-stag options are now aliases to the new -tag option.
270 - Windows Media Image decoder
274 - libcdio-paranoia input device for audio CD grabbing
276 - Apple ProRes decoder
277 - CELT in Ogg demuxing
278 - VC-1 interlaced decoding
279 - lut, lutrgb, and lutyuv filters
282 - Speex encoding via libspeex
283 - 4:2:2 H.264 decoding support
284 - 4:2:2 and 4:4:4 H.264 encoding with libx264
285 - Pulseaudio input device
286 - replacement Indeo 3 decoder
287 - TLS/SSL and HTTPS protocol support
288 - AVOptions API rewritten and documented
289 - most of CODEC_FLAG2_*, some CODEC_FLAG_* and many codec-specific fields in
290 AVCodecContext deprecated. Codec private options should be used instead.
291 - Properly working defaults in libx264 wrapper, support for native presets.
292 - Encrypted OMA files support
293 - Discworld II BMV decoding support
295 - OS X Video Decoder Acceleration (VDA) support
296 - CRI ADX audio format muxer and demuxer
297 - Playstation Portable PMP format demuxer
298 - PCM format support in OMA demuxer
300 - Dxtory capture format decoder
301 - v410 QuickTime uncompressed 4:4:4 10-bit encoder and decoder
303 - Simple segmenting muxer
310 - E-AC-3 audio encoder
311 - ac3enc: add channel coupling support
312 - floating-point sample format support for (E-)AC-3, DCA, AAC, Vorbis decoders
313 - H.264/MPEG frame-level multithreading
314 - av_metadata_* functions renamed to av_dict_* and moved to libavutil
315 - 4:4:4 H.264 decoding support
316 - 10-bit H.264 optimizations for x86
317 - bump libswscale for recently reported ABI break
322 - VP8 frame-level multithreading
323 - NEON optimizations for VP8
324 - removed a lot of deprecated API cruft
325 - FFT and IMDCT optimizations for AVX (Sandy Bridge) processors
327 - SMPTE 302M AES3 audio decoder
328 - ffmpeg no longer quits after the 'q' key is pressed; use 'ctrl+c' instead
329 - 9bit and 10bit per sample support in the H.264 decoder
334 - WebM support in Matroska de/muxer
335 - low overhead Ogg muxing
337 - VP8 de/encoding via libvpx
338 - Demuxer for On2's IVF format
339 - Pictor/PC Paint decoder
341 - libfaad2 wrapper removed
342 - DTS-ES extension (XCh) decoding support
344 - RTSP tunneling over HTTP
345 - RTP depacketization of SVQ3
346 - -strict inofficial replaced by -strict unofficial
347 - ffplay -exitonkeydown and -exitonmousedown options added
348 - native GSM / GSM MS decoder
349 - RTP depacketization of QDM2
350 - ANSI/ASCII art playback system
351 - Lego Mindstorms RSO de/muxer
352 - SubRip subtitle file muxer and demuxer
353 - Chinese AVS encoding via libxavs
354 - ffprobe -show_packets option added
355 - RTP packetization of Theora and Vorbis
356 - RTP depacketization of MP4A-LATM
357 - RTP packetization and depacketization of VP8
359 - Apple HTTP Live Streaming demuxer
362 - G.722 ADPCM audio encoder/decoder
365 - frei0r wrapper filter
366 - change crop filter syntax to width:height:x:y
367 - make the crop filter accept parametric expressions
368 - make ffprobe accept AVFormatContext options
371 - Demuxer for Leitch/Harris' VR native stream format (LXF)
372 - RTP depacketization of the X-QT QuickTime format
373 - SAP (Session Announcement Protocol, RFC 2974) muxer and demuxer
375 - ffmpeg -crop* options removed
376 - transpose filter added
377 - ffmpeg -force_key_frames option added
378 - demuxer for receiving raw rtp:// URLs without an SDP description
379 - single stream LATM/LOAS decoder
380 - setpts filter added
381 - Win64 support for optimized x86 assembly functions
382 - MJPEG/AVI1 to JPEG/JFIF bitstream filter
383 - ASS subtitle encoder and decoder
384 - IEC 61937 encapsulation for E-AC-3, TrueHD, DTS-HD (for HDMI passthrough)
385 - overlay filter added
386 - rename aspect filter to setdar, and pixelaspect to setsar
388 - Mobotix .mxg demuxer
389 - frei0r source added
390 - hqdn3d filter added
391 - RTP depacketization of QCELP
393 - gradfun filter added
395 - replace the ocv_smooth filter with a more generic ocv filter
396 - Windows Televison (WTV) demuxer
397 - FFmpeg metadata format muxer and demuxer
398 - SubRip (srt) subtitle decoder
399 - floating-point AC-3 encoder added
401 - ffmpeg -copytb option added
403 - Wing Commander IV movies decoder added
405 - Bink version 'b' audio and video decoder
406 - Bitmap Brothers JV playback system
407 - Apple HTTP Live Streaming protocol handler
408 - sndio support for playback and record
409 - Linux framebuffer input device added
410 - Chronomaster DFA decoder
411 - Mobotix MxPEG decoder
412 - AAC encoding via libvo-aacenc
413 - AMR-WB encoding via libvo-amrwbenc
415 - fieldorder video filter added
420 - PB-frame decoding for H.263
421 - deprecated vhook subsystem removed
422 - deprecated old scaler removed
424 - Alpha channel scaler
426 - RTP packetization of H.263
427 - RTP packetization of AMR
428 - RTP depacketization of Vorbis
429 - CorePNG decoding support
430 - Cook multichannel decoding support
431 - introduced avlanguage helpers in libavformat
432 - 8088flex TMV demuxer and decoder
433 - per-stream language-tags extraction in asfdec
434 - V210 decoder and encoder
435 - remaining GPL parts in AC-3 decoder converted to LGPL
437 - SoX native format muxer and demuxer
438 - AMR-NB decoding/encoding, AMR-WB decoding via OpenCORE libraries
440 - Electronic Arts Madcow decoder
441 - DivX (XSUB) subtitle encoder
442 - nonfree libamr support for AMR-NB/WB decoding/encoding removed
443 - experimental AAC encoder
444 - RTP depacketization of ASF and RTSP from WMS servers
445 - RTMP support in libavformat
446 - noX handling for OPT_BOOL X options
448 - IEC-61937 compatible Muxer
450 - Bluray (PGS) subtitle decoder
451 - LPCM support in MPEG-TS (HDMV RID as found on Blu-ray disks)
453 - Core Audio Format demuxer
455 - MD STUDIO audio demuxer
456 - RF64 support in WAV demuxer
457 - MPEG-4 Audio Lossless Coding (ALS) decoder
458 - -formats option split into -formats, -codecs, -bsfs, and -protocols
460 - CDG demuxer and decoder
462 - Auravision Aura 1 and 2 decoders
463 - Deluxe Paint Animation playback system
465 - Adobe Filmstrip muxer and demuxer
466 - RTP depacketization of H.263
467 - Bink demuxer and audio/video decoders
468 - enable symbol versioning by default for linkers that support it
469 - IFF PBM/ILBM bitmap decoder
472 - RTP depacketization of AMR
478 - Kega Game Video (KGV1) decoder
479 - VorbisComment writing for FLAC, Ogg FLAC and Ogg Speex files
480 - RTP depacketization of Theora
481 - HTTP Digest authentication
482 - RTMP/RTMPT/RTMPS/RTMPE/RTMPTE protocol support via librtmp
483 - Psygnosis YOP demuxer and video decoder
484 - spectral extension support in the E-AC-3 decoder
485 - unsharp video filter
486 - RTP hinting in the mov/3gp/mp4 muxer
487 - Dirac in Ogg demuxing
488 - seek to keyframes in Ogg
489 - 4:2:2 and 4:4:4 Theora decoding
490 - 35% faster VP3/Theora decoding
491 - faster AAC decoding
492 - faster H.264 decoding
493 - RealAudio 1.0 (14.4K) encoder
498 - DV50 AKA DVCPRO50 encoder, decoder, muxer and demuxer
499 - TechSmith Camtasia (TSCC) video decoder
500 - IBM Ultimotion (ULTI) video decoder
501 - Sierra Online audio file demuxer and decoder
502 - Apple QuickDraw (qdrw) video decoder
503 - Creative ADPCM audio decoder (16 bits as well as 8 bits schemes)
504 - Electronic Arts Multimedia (WVE/UV2/etc.) file demuxer
505 - Miro VideoXL (VIXL) video decoder
506 - H.261 video encoder
508 - Nullsoft Video (NSV) file demuxer
509 - Shorten audio decoder
511 - Apple Lossless Audio Codec (ALAC) decoder
512 - Winnov WNV1 video decoder
513 - Autodesk Animator Studio Codec (AASC) decoder
514 - Indeo 2 video decoder
515 - Fraps FPS1 video decoder
516 - Snow video encoder/decoder
517 - Sonic audio encoder/decoder
518 - Vorbis audio decoder
519 - Macromedia ADPCM decoder
520 - Duck TrueMotion 2 video decoder
521 - support for decoding FLX and DTA extensions in FLIC files
522 - H.264 custom quantization matrices support
523 - ffserver fixed, it should now be usable again
525 - Real Cooker audio decoder
526 - TrueSpeech audio decoder
527 - WMA2 audio decoder fixed, now all files should play correctly
528 - RealAudio 14.4 and 28.8 decoders fixed
530 - build system improvements
531 - tabs and trailing whitespace removed from the codebase
532 - CamStudio video decoder
533 - AIFF/AIFF-C audio format, encoding and decoding
534 - ADTS AAC file reading and writing
535 - Creative VOC file reading and writing
536 - American Laser Games multimedia (*.mm) playback system
537 - Zip Motion Blocks Video decoder
538 - improved Theora/VP3 decoder
539 - True Audio (TTA) decoder
540 - AVS demuxer and video decoder
542 - Smacker demuxer and decoder
543 - NuppelVideo/MythTV demuxer and RTjpeg decoder
545 - MPEG-2 intra VLC support
546 - MPEG-2 4:2:2 encoder
547 - Flash Screen Video decoder
549 - Chinese AVS decoder
552 - VC-1/WMV3/WMV9 video decoder
555 - VMware video decoder
558 - WavPack lossless audio decoder
559 - Targa (.TGA) picture decoder
560 - Vorbis audio encoder
561 - Delphine Software .cin demuxer/audio and video decoder
562 - Tiertex .seq demuxer/video decoder
564 - TIFF picture encoder and decoder
565 - GIF picture decoder
566 - Intel Music Coder decoder
567 - Zip Motion Blocks Video encoder
569 - Flash Screen Video encoder
570 - Theora encoding via libtheora
573 - GSM-MS encoder and decoder
575 - DXA demuxer and decoder
577 - Gamecube movie (.THP) playback system
578 - Blackfin optimizations
579 - Interplay C93 demuxer and video decoder
580 - Bethsoft VID demuxer and video decoder
583 - V.Flash PTX decoder
584 - RoQ muxer, RoQ audio encoder
585 - Renderware TXD demuxer and decoder
586 - extern C declarations for C++ removed from headers
587 - sws_flags command line option
591 - OS/2 support removed and restored again
594 - additional SPARC (VIS) optimizations
596 - slice-based parallel H.264 decoding
597 - Monkey's Audio demuxer and decoder
598 - AMV audio and video decoder
600 - H.264 PAFF decoding
601 - Nellymoser ASAO decoder
602 - Beam Software SIFF demuxer and decoder
603 - libvorbis Vorbis decoding removed in favor of native decoder
604 - IntraX8 (J-Frame) subdecoder for WMV2 and VC-1
605 - Ogg (Theora, Vorbis and FLAC) muxer
606 - The "device" muxers and demuxers are now in a new libavdevice library
607 - PC Paintbrush PCX decoder
608 - Sun Rasterfile decoder
609 - TechnoTrend PVA demuxer
610 - Linux Media Labs MPEG-4 (LMLM4) demuxer
611 - AVM2 (Flash 9) SWF muxer
612 - QT variant of IMA ADPCM encoder
614 - iPod/iPhone compatible mp4 muxer
616 - MSN TCP Webcam stream demuxer
617 - RL2 demuxer / decoder
620 - non-recursive Makefiles
622 - MAXIS EA XA (.xa) demuxer / decoder
626 - Electronic Arts CMV decoder
627 - Motion Pixels Video decoder
628 - Motion Pixels MVI demuxer
629 - removed animated GIF decoder/demuxer
630 - D-Cinema audio muxer
631 - Electronic Arts TGV decoder
632 - Apple Lossless Audio Codec (ALAC) encoder
634 - floating point PCM encoder/decoder
636 - DV100 AKA DVCPRO HD decoder and demuxer
637 - E-AC-3 support added to AC-3 decoder
638 - Nellymoser ASAO encoder
639 - ASS and SSA demuxer and muxer
640 - liba52 wrapper removed
641 - SVQ3 watermark decoding support
642 - Speex decoding via libspeex
643 - Electronic Arts TGQ decoder
645 - QCELP / PureVoice decoder
647 - hybrid WavPack support
648 - R3D REDCODE demuxer
649 - ALSA support for playback and record
650 - Electronic Arts TQI decoder
651 - OpenJPEG based JPEG 2000 decoder
652 - NC (NC4600) camera file demuxer
653 - Gopher client support
655 - generic metadata API
660 - DV encoder, DV muxer
661 - Microsoft RLE video decoder
662 - Microsoft Video-1 decoder
663 - Apple Animation (RLE) decoder
664 - Apple Graphics (SMC) decoder
665 - Apple Video (RPZA) decoder
667 - Sega FILM (CPK) file demuxer
668 - Westwood multimedia support (VQA & AUD files)
669 - Id Quake II CIN playback support
671 - FLIC playback support
672 - RealVideo 2.0 (RV20) decoder
673 - Duck TrueMotion v1 (DUCK) video decoder
674 - Sierra VMD demuxer and video decoder
675 - MSZH and ZLIB decoder support
679 - rate distortion optimal cbp support
680 - rate distorted optimal ac prediction for MPEG-4
681 - rate distorted optimal lambda->qp support
682 - AAC encoding with libfaac
683 - Sunplus JPEG codec (SP5X) support
684 - use Lagrange multipler instead of QP for ratecontrol
685 - Theora/VP3 decoding support
686 - XA and ADX ADPCM codecs
687 - export MPEG-2 active display area / pan scan
688 - Add support for configuring with IBM XLC
689 - floating point AAN DCT
690 - initial support for zygo video (not complete)
692 - new audio/video parser API
694 - av_read_frame() and av_seek_frame() support
695 - missing last frame fixes
696 - seek by mouse in ffplay
697 - noise reduction of DCT coefficients
698 - H.263 OBMC & 4MV support
699 - H.263 alternative inter vlc support
701 - H.263 slice structured mode
702 - interlaced DCT support for MPEG-2 encoding
703 - stuffing to stay above min_bitrate
704 - MB type & QP visualization
705 - frame stepping for ffplay
706 - interlaced motion estimation
707 - alternate scantable support
708 - SVCD scan offset support
711 - quantizer noise shaping
712 - G.726 ADPCM audio codec
714 - multithreaded/SMP motion estimation
715 - multithreaded/SMP encoding for MPEG-1/MPEG-2/MPEG-4/H.263
716 - multithreaded/SMP decoding for MPEG-2
718 - Metrowerks CodeWarrior suppport
719 - H.263+ custom pcf support
720 - nicer output for 'ffmpeg -formats'
722 - SGI image format, encoding and decoding
723 - H.264 loop filter support
724 - H.264 CABAC support
725 - nicer looking arrows for the motion vector visualization
726 - improved VCD support
727 - audio timestamp drift compensation
728 - MPEG-2 YUV 422/444 support
729 - polyphase kaiser windowed sinc and blackman nuttall windowed sinc audio resample
730 - better image scaling
732 - correctly interleave packets during encoding
733 - VIS optimized motion compensation
734 - intra_dc_precision>0 encoding support
735 - support reuse of motion vectors/MB types/field select values of the source video
736 - more accurate deblock filter
738 - many optimizations and bugfixes
739 - FunCom ISS audio file demuxer and according ADPCM decoding
744 - MPEG-2 video encoding (Michael)
745 - Id RoQ playback subsystem (Mike Melanson and Tim Ferguson)
746 - Wing Commander III Movie (.mve) file playback subsystem (Mike Melanson
748 - Xan DPCM audio decoder (Mario Brito)
749 - Interplay MVE playback subsystem (Mike Melanson)
750 - Duck DK3 and DK4 ADPCM audio decoders (Mike Melanson)
755 - RealAudio 1.0 (14_4) and 2.0 (28_8) native decoders. Author unknown, code from mplayerhq
756 (originally from public domain player for Amiga at http://www.honeypot.net/audio)
757 - current version now also compiles with older GCC (Fabrice)
758 - 4X multimedia playback system including 4xm file demuxer (Mike
759 Melanson), and 4X video and audio codecs (Michael)
760 - Creative YUV (CYUV) decoder (Mike Melanson)
761 - FFV1 codec (our very simple lossless intra only codec, compresses much better
762 than HuffYUV) (Michael)
763 - ASV1 (Asus), H.264, Intel indeo3 codecs have been added (various)
764 - tiny PNG encoder and decoder, tiny GIF decoder, PAM decoder (PPM with
765 alpha support), JPEG YUV colorspace support. (Fabrice Bellard)
766 - ffplay has been replaced with a newer version which uses SDL (optionally)
767 for multiplatform support (Fabrice)
768 - Sorenson Version 3 codec (SVQ3) support has been added (decoding only) - donated
770 - AMR format has been added (Johannes Carlsson)
771 - 3GP support has been added (Johannes Carlsson)
772 - VP3 codec has been added (Mike Melanson)
773 - more MPEG-1/2 fixes
774 - better multiplatform support, MS Visual Studio fixes (various)
775 - AltiVec optimizations (Magnus Damn and others)
776 - SH4 processor support has been added (BERO)
777 - new public interfaces (avcodec_get_pix_fmt) (Roman Shaposhnick)
778 - VOB streaming support (Brian Foley)
779 - better MP3 autodetection (Andriy Rysin)
780 - qpel encoding (Michael)
781 - 4mv+b frames encoding finally fixed (Michael)
782 - chroma ME (Michael)
783 - 5 comparison functions for ME (Michael)
784 - B-frame encoding speedup (Michael)
785 - WMV2 codec (unfinished - Michael)
786 - user specified diamond size for EPZS (Michael)
787 - Playstation STR playback subsystem, still experimental (Mike and Michael)
788 - ASV2 codec (Michael)
789 - CLJR decoder (Alex)
791 .. And lots more new enhancements and fixes.
796 - completely new integer only MPEG audio layer 1/2/3 decoder rewritten
798 - Recoded DCT and motion vector search with gcc (no longer depends on nasm)
799 - fix quantization bug in AC3 encoder
800 - added PCM codecs and format. Corrected WAV/AVI/ASF PCM issues
801 - added prototype ffplay program
802 - added GOB header parsing on H.263/H.263+ decoder (Juanjo)
803 - bug fix on MCBPC tables of H.263 (Juanjo)
804 - bug fix on DC coefficients of H.263 (Juanjo)
805 - added Advanced Prediction Mode on H.263/H.263+ decoder (Juanjo)
806 - now we can decode H.263 streams found in QuickTime files (Juanjo)
807 - now we can decode H.263 streams found in VIVO v1 files(Juanjo)
808 - preliminary RTP "friendly" mode for H.263/H.263+ coding. (Juanjo)
809 - added GOB header for H.263/H.263+ coding on RTP mode (Juanjo)
810 - now H.263 picture size is returned on the first decoded frame (Juanjo)
811 - added first regression tests
812 - added MPEG-2 TS demuxer
813 - new demux API for libav
814 - more accurate and faster IDCT (Michael)
815 - faster and entropy-controlled motion search (Michael)
816 - two pass video encoding (Michael)
817 - new video rate control (Michael)
818 - added MSMPEG4V1, MSMPEGV2 and WMV1 support (Michael)
819 - great performance improvement of video encoders and decoders (Michael)
820 - new and faster bit readers and vlc parsers (Michael)
821 - high quality encoding mode: tries all macroblock/VLC types (Michael)
822 - added DV video decoder
823 - preliminary RTP/RTSP support in ffserver and libavformat
824 - H.263+ AIC decoding/encoding support (Juanjo)
825 - VCD MPEG-PS mode (Juanjo)
826 - PSNR stuff (Juanjo)
827 - simple stats output (Juanjo)
828 - 16-bit and 15-bit RGB/BGR/GBR support (Bisqwit)
833 - some header fixes (Zdenek Kabelac <kabi at informatics.muni.cz>)
834 - many MMX optimizations (Nick Kurshev <nickols_k at mail.ru>)
835 - added configure system (actually a small shell script)
836 - added MPEG audio layer 1/2/3 decoding using LGPL'ed mpglib by
837 Michael Hipp (temporary solution - waiting for integer only
839 - fixed VIDIOCSYNC interrupt
840 - added Intel H.263 decoding support ('I263' AVI fourCC)
841 - added Real Video 1.0 decoding (needs further testing)
842 - simplified image formats again. Added PGM format (=grey
843 pgm). Renamed old PGM to PGMYUV.
844 - fixed msmpeg4 slice issues (tell me if you still find problems)
845 - fixed OpenDivX bugs with newer versions (added VOL header decoding)
846 - added support for MPlayer interface
847 - added macroblock skip optimization
848 - added MJPEG decoder
849 - added mmx/mmxext IDCT from libmpeg2
850 - added pgmyuvpipe, ppm, and ppm_pipe formats (original patch by Celer
851 <celer at shell.scrypt.net>)
852 - added pixel format conversion layer (e.g. for MJPEG or PPM)
853 - added deinterlacing option
855 - MPEG-4 vol header fixes (Jonathan Marsden <snmjbm at pacbell.net>)
856 - ARM optimizations (Lionel Ulmer <lionel.ulmer at free.fr>).
857 - Windows porting of file converter
858 - added MJPEG raw format (input/ouput)
859 - added JPEG image format support (input/output)
864 - fixed some std header definitions (Bjorn Lindgren
865 <bjorn.e.lindgren at telia.com>).
866 - added MPEG demuxer (MPEG-1 and 2 compatible).
868 - added prototype RM demuxer
869 - added AC3 decoding (done with libac3 by Aaron Holtzman)
870 - added decoding codec parameter guessing (.e.g. for MPEG, because the
871 header does not include them)
872 - fixed header generation in MPEG-1, AVI and ASF muxer: wmplayer can now
873 play them (only tested video)
874 - fixed H.263 white bug
875 - fixed phase rounding in img resample filter
876 - add MMX code for polyphase img resample filter
877 - added CPU autodetection
878 - added generic title/author/copyright/comment string handling (ASF and RM
880 - added SWF demux to extract MP3 track (not usable yet because no MP3
882 - added fractional frame rate support
883 - codecs are no longer searched by read_header() (should fix ffserver
889 - BGR24 patch (initial patch by Jeroen Vreeken <pe1rxq at amsat.org>)
890 - fixed raw yuv output
891 - added motion rounding support in MPEG-4
892 - fixed motion bug rounding in MSMPEG4
893 - added B-frame handling in video core
894 - added full MPEG-1 decoding support
895 - added partial (frame only) MPEG-2 support
896 - changed the FOURCC code for H.263 to "U263" to be able to see the
897 +AVI/H.263 file with the UB Video H.263+ decoder. MPlayer works with
898 this +codec ;) (JuanJo).
899 - Halfpel motion estimation after MB type selection (JuanJo)
900 - added pgm and .Y.U.V output format
901 - suppressed 'img:' protocol. Simply use: /tmp/test%d.[pgm|Y] as input or
903 - added pgmpipe I/O format (original patch from Martin Aumueller
904 <lists at reserv.at>, but changed completely since we use a format
905 instead of a protocol)
910 - added H.263/MPEG-4/MSMPEG4 decoding support. MPEG-4 decoding support
911 (for OpenDivX) is almost complete: 8x8 MVs and rounding are
912 missing. MSMPEG4 support is complete.
913 - added prototype MPEG-1 decoder. Only I- and P-frames handled yet (it
914 can decode ffmpeg MPEGs :-)).
915 - added libavcodec API documentation (see apiexample.c).
916 - fixed image polyphase bug (the bottom of some images could be
918 - added support for non clipped motion vectors (decoding only)
919 and image sizes non-multiple of 16
920 - added support for AC prediction (decoding only)
921 - added file overwrite confirmation (can be disabled with -y)
922 - added custom size picture to H.263 using H.263+ (Juanjo)
927 - added MSMPEG4 (aka DivX) compatible encoder. Changed default codec
928 of AVI and ASF to DIV3.
929 - added -me option to set motion estimation method
930 (default=log). suppressed redundant -hq option.
931 - added options -acodec and -vcodec to force a given codec (useful for
934 - improved dct_quantize speed
935 - factorized some motion estimation code
940 - removing grab code from ffserver and moved it to ffmpeg. Added
941 multistream support to ffmpeg.
942 - added timeshifting support for live feeds (option ?date=xxx in the
944 - added high quality image resize code with polyphase filter (need
945 mmx/see optimization). Enable multiple image size support in ffserver.
946 - added multi live feed support in ffserver
947 - suppressed master feature from ffserver (it should be done with an
948 external program which opens the .ffm url and writes it to another
950 - added preliminary support for video stream parsing (WAV and AVI half
951 done). Added proper support for audio/video file conversion in
953 - added preliminary support for video file sending from ffserver
954 - redesigning I/O subsystem: now using URL based input and output
956 - added WAV format support
957 - added "tty user interface" to ffmpeg to stop grabbing gracefully
958 - added MMX/SSE optimizations to SAD (Sums of Absolutes Differences)
959 (Juan J. Sierralta P. a.k.a. "Juanjo" <juanjo at atmlab.utfsm.cl>)
960 - added MMX DCT from mpeg2_movie 1.5 (Juanjo)
961 - added new motion estimation algorithms, log and phods (Juanjo)
962 - changed directories: libav for format handling, libavcodec for
968 - added stereo in MPEG audio encoder
973 - added 'high quality' mode which use motion vectors. It can be used in
974 real time at low resolution.
975 - fixed rounding problems which caused quality problems at high
976 bitrates and large GOP size
979 version 0.3.2: small fixes
985 version 0.3.1: added avi/divx support
988 - added MPEG-4 codec compatible with OpenDivX. It is based on the H.263 codec
989 - added sound for flash format (not tested)
992 version 0.3: initial public release