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)
19 - LucasArts SMUSH demuxer
20 - MP2 encoding via TwoLAME
22 - Silicon Graphics RLE 8-bit video decoder
23 - Silicon Graphics Motion Video Compressor 1 & 2 decoder
24 - Silicon Graphics Movie demuxer
25 - On2 AVC (Audio for Video) decoder
26 - support for decoding through DXVA2 in avconv
27 - libbs2b-based stereo-to-binaural audio filter
29 - display matrix export and rotation API
30 - drop avserver, it was unmaintained for years and largely broken
32 - request Icecast metadata by default
33 - support for using metadata in stream specifiers in avtools
39 - support ID3v2 tags in ASF files
40 - reference-counting for AVFrame and AVPacket data
41 - avconv now fails when input options are used for output file
43 - avconv options -filter_script and -filter_complex_script, which allow a
44 filtergraph description to be read from a file
45 - uniform options syntax across all filters
48 - asetpts filter (same as setpts, but for audio)
49 - trim and atrim filters
50 - avconv -t and -ss (output-only) options are now sample-accurate when
52 - Matroska muxer can now put the index at the beginning of the file.
53 - avconv -deinterlace option removed, the yadif filter should be used instead
54 - Apple Intermediate Codec decoder
55 - Escape 130 video decoder
56 - support for slice multithreading in libavfilter
57 - VC-1 interlaced B-frame support
58 - support for WavPack muxing (raw and in Matroska)
60 - WavPack encoding through libwavpack
61 - Added the -n parameter to avconv
63 - when transcoding with avconv (i.e. not streamcopying), -ss is now accurate
64 even when used as an input option. Previous behavior can be restored with
65 the -noaccurate_seek option.
66 - avconv -t option can now be used for inputs, to limit the duration of
67 data read from an input file
68 - Voxware MetaSound decoder
70 - Error Resilient AAC syntax (ER AAC LC) decoding
71 - Low Delay AAC (ER AAC LD) decoding
72 - mux chapters in ASF files
73 - Opus in Ogg demuxing
74 - Enhanced Low Delay AAC (ER AAC ELD) decoding (no LD SBR support)
76 - HNM version 4 demuxer and video decoder
78 - raw HEVC, HEVC in MOV/MP4, HEVC in Matroska, HEVC in MPEG-TS demuxing
79 - remove avplay -vismv option, which has not worked for a long time
81 - setsar/setdar filters now support variables in ratio expressions
82 - dar variable in the scale filter now returns the actual DAR (i.e. a * sar)
84 - support for decoding through VDPAU in avconv (the -hwaccel option)
85 - remove mp3_header_(de)compress bitstream filters
86 - stereoscopic 3d metadata handling
87 - png standalone parser
88 - WebP encoding via libwebp
91 - Mirillis FIC video decoder
93 - compand audio filter
97 - av_basename and av_dirname
98 - adobe and limelight publisher authentication in RTMP
99 - VDPAU hardware acceleration through normal hwaccel
104 - ashowinfo audio filter
105 - 24-bit FLAC encoding
106 - audio volume filter
107 - deprecated the avconv -vol option. the volume filter is to be used instead.
108 - multi-channel ALAC encoding up to 7.1
109 - TAK demuxer, parser, and decoder
110 - adaptive frame-level multithreading for H.264
114 - metadata (INFO tag) support in WAV muxer
115 - support for building DLLs using MSVC
116 - remove avserver daemon mode
117 - support building on the Plan 9 operating system
118 - ffv1: support version 1.3
123 - XWD encoder and decoder
124 - Support for fragmentation in the mov/mp4 muxer
125 - ISMV (Smooth Streaming) muxer
126 - CDXL demuxer and decoder
127 - Apple ProRes encoder
128 - Sun Rasterfile Encoder
130 - ID3v2 attached pictures reading and writing
131 - WMA Lossless decoder
133 - RealAudio Lossless decoder
135 - drop support for avconv without libavfilter
136 - add libavresample audio conversion library
137 - audio filters support in libavfilter and avconv
141 - avprobe output is now standard INI or JSON. The old format can still
142 be used with -of old.
143 - Indeo Audio decoder
144 - channelsplit audio filter
145 - RTMPT protocol support
146 - iLBC encoding/decoding via libilbc
147 - Microsoft Screen 1 decoder
149 - audio channel mapping filter
150 - Microsoft ATC Screen decoder
152 - TechSmith Screen Codec 2 decoder
153 - AAC encoding via libfdk-aac
154 - Microsoft Expression Encoder Screen decoder
155 - RTMPS protocol support
156 - RTMPTS protocol support
157 - JPEG 2000 encoding support through OpenJPEG
158 - G.723.1 demuxer and decoder
159 - RTMPE protocol support
160 - RTMPTE protocol support
161 - Canopus Lossless Codec decoder
162 - avconv -shortest option is now per-output file,
163 -pass and -passlogfile are now per-output stream
165 - Microsoft Screen 2 decoder
166 - RTP depacketization of JPEG
167 - Smooth Streaming live segmenter muxer
168 - RTP packetization of JPEG
169 - Opus decoder and encoder using libopus
170 - remove -same_quant, it hasn't worked for years
171 - support for building with MSVC
182 - Automatic thread count based on detection number of (available) CPU cores
183 - Deprecate libpostproc. If desired, the switch --enable-postproc will
184 enable it but it may be removed in a later Libav release.
185 - rv34: frame-level multi-threading
186 - optimized iMDCT transform on x86 using SSE for for mpegaudiodec
192 - Flash Screen Video 2 decoder
193 - ffplay/ffprobe/ffserver renamed to avplay/avprobe/avserver
194 - ffmpeg deprecated, added avconv, which is almost the same for now, except
195 for a few incompatible changes in the options, which will hopefully make them
196 easier to use. The changes are:
197 * The options placement is now strictly enforced! While in theory the
198 options for ffmpeg should be given in [input options] -i INPUT [output
199 options] OUTPUT order, in practice it was possible to give output options
200 before the -i and it mostly worked. Except when it didn't - the behavior was
201 a bit inconsistent. In avconv, it is not possible to mix input and output
202 options. All non-global options are reset after an input or output filename.
203 * All per-file options are now truly per-file - they apply only to the next
204 input or output file and specifying different values for different files
205 will now work properly (notably -ss and -t options).
206 * All per-stream options are now truly per-stream - it is possible to
207 specify which stream(s) should a given option apply to. See the Stream
208 specifiers section in the avconv manual for details.
209 * In ffmpeg some options (like -newvideo/-newaudio/...) are irregular in the
210 sense that they're specified after the output filename instead of before,
211 like all other options. In avconv this irregularity is removed, all options
212 apply to the next input or output file.
213 * -newvideo/-newaudio/-newsubtitle options were removed. Not only were they
214 irregular and highly confusing, they were also redundant. In avconv the -map
215 option will create new streams in the output file and map input streams to
216 them. E.g. avconv -i INPUT -map 0 OUTPUT will create an output stream for
217 each stream in the first input file.
218 * The -map option now has slightly different and more powerful syntax:
219 + Colons (':') are used to separate file index/stream type/stream index
220 instead of dots. Comma (',') is used to separate the sync stream instead
221 of colon.. This is done for consistency with other options.
222 + It's possible to specify stream type. E.g. -map 0:a:2 creates an
223 output stream from the third input audio stream.
224 + Omitting the stream index now maps all the streams of the given type,
225 not just the first. E.g. -map 0:s creates output streams for all the
226 subtitle streams in the first input file.
227 + Since -map can now match multiple streams, negative mappings were
228 introduced. Negative mappings disable some streams from an already
229 defined map. E.g. '-map 0 -map -0:a:1' means 'create output streams for
230 all the stream in the first input file, except for the second audio
232 * There is a new option -c (or -codec) for choosing the decoder/encoder to
233 use, which allows to precisely specify target stream(s) consistently with
234 other options. E.g. -c:v lib264 sets the codec for all video streams, -c:a:0
235 libvorbis sets the codec for the first audio stream and -c copy copies all
236 the streams without reencoding. Old -vcodec/-acodec/-scodec options are now
238 * It is now possible to precisely specify which stream should an AVOption
239 apply to. E.g. -b:v:0 2M sets the bitrate for the first video stream, while
240 -b:a 128k sets the bitrate for all audio streams. Note that the old -ab 128k
241 syntax is deprecated and will stop working soon.
242 * -map_chapters now takes only an input file index and applies to the next
243 output file. This is consistent with how all the other options work.
244 * -map_metadata now takes only an input metadata specifier and applies to
245 the next output file. Output metadata specifier is now part of the option
246 name, similarly to the AVOptions/map/codec feature above.
247 * -metadata can now be used to set metadata on streams and chapters, e.g.
248 -metadata:s:1 language=eng sets the language of the first stream to 'eng'.
249 This made -vlang/-alang/-slang options redundant, so they were removed.
250 * -qscale option now uses stream specifiers and applies to all streams, not
251 just video. I.e. plain -qscale number would now apply to all streams. To get
252 the old behavior, use -qscale:v. Also there is now a shortcut -q for -qscale
253 and -aq is now an alias for -q:a.
254 * -vbsf/-absf/-sbsf options were removed and replaced by a -bsf option which
255 uses stream specifiers. Use -bsf:v/a/s instead of the old options.
256 * -itsscale option now uses stream specifiers, so its argument is only the
258 * -intra option was removed, use -g 0 for the same effect.
259 * -psnr option was removed, use -flags +psnr for the same effect.
260 * -vf option is now an alias to the new -filter option, which uses stream specifiers.
261 * -vframes/-aframes/-dframes options are now aliases to the new -frames option.
262 * -vtag/-atag/-stag options are now aliases to the new -tag option.
264 - Windows Media Image decoder
268 - libcdio-paranoia input device for audio CD grabbing
270 - Apple ProRes decoder
271 - CELT in Ogg demuxing
272 - VC-1 interlaced decoding
273 - lut, lutrgb, and lutyuv filters
276 - Speex encoding via libspeex
277 - 4:2:2 H.264 decoding support
278 - 4:2:2 and 4:4:4 H.264 encoding with libx264
279 - Pulseaudio input device
280 - replacement Indeo 3 decoder
281 - TLS/SSL and HTTPS protocol support
282 - AVOptions API rewritten and documented
283 - most of CODEC_FLAG2_*, some CODEC_FLAG_* and many codec-specific fields in
284 AVCodecContext deprecated. Codec private options should be used instead.
285 - Properly working defaults in libx264 wrapper, support for native presets.
286 - Encrypted OMA files support
287 - Discworld II BMV decoding support
289 - OS X Video Decoder Acceleration (VDA) support
290 - CRI ADX audio format muxer and demuxer
291 - Playstation Portable PMP format demuxer
292 - PCM format support in OMA demuxer
294 - Dxtory capture format decoder
295 - v410 QuickTime uncompressed 4:4:4 10-bit encoder and decoder
297 - Simple segmenting muxer
304 - E-AC-3 audio encoder
305 - ac3enc: add channel coupling support
306 - floating-point sample format support for (E-)AC-3, DCA, AAC, Vorbis decoders
307 - H.264/MPEG frame-level multithreading
308 - av_metadata_* functions renamed to av_dict_* and moved to libavutil
309 - 4:4:4 H.264 decoding support
310 - 10-bit H.264 optimizations for x86
311 - bump libswscale for recently reported ABI break
316 - VP8 frame-level multithreading
317 - NEON optimizations for VP8
318 - removed a lot of deprecated API cruft
319 - FFT and IMDCT optimizations for AVX (Sandy Bridge) processors
321 - SMPTE 302M AES3 audio decoder
322 - ffmpeg no longer quits after the 'q' key is pressed; use 'ctrl+c' instead
323 - 9bit and 10bit per sample support in the H.264 decoder
328 - WebM support in Matroska de/muxer
329 - low overhead Ogg muxing
331 - VP8 de/encoding via libvpx
332 - Demuxer for On2's IVF format
333 - Pictor/PC Paint decoder
335 - libfaad2 wrapper removed
336 - DTS-ES extension (XCh) decoding support
338 - RTSP tunneling over HTTP
339 - RTP depacketization of SVQ3
340 - -strict inofficial replaced by -strict unofficial
341 - ffplay -exitonkeydown and -exitonmousedown options added
342 - native GSM / GSM MS decoder
343 - RTP depacketization of QDM2
344 - ANSI/ASCII art playback system
345 - Lego Mindstorms RSO de/muxer
346 - SubRip subtitle file muxer and demuxer
347 - Chinese AVS encoding via libxavs
348 - ffprobe -show_packets option added
349 - RTP packetization of Theora and Vorbis
350 - RTP depacketization of MP4A-LATM
351 - RTP packetization and depacketization of VP8
353 - Apple HTTP Live Streaming demuxer
356 - G.722 ADPCM audio encoder/decoder
359 - frei0r wrapper filter
360 - change crop filter syntax to width:height:x:y
361 - make the crop filter accept parametric expressions
362 - make ffprobe accept AVFormatContext options
365 - Demuxer for Leitch/Harris' VR native stream format (LXF)
366 - RTP depacketization of the X-QT QuickTime format
367 - SAP (Session Announcement Protocol, RFC 2974) muxer and demuxer
369 - ffmpeg -crop* options removed
370 - transpose filter added
371 - ffmpeg -force_key_frames option added
372 - demuxer for receiving raw rtp:// URLs without an SDP description
373 - single stream LATM/LOAS decoder
374 - setpts filter added
375 - Win64 support for optimized x86 assembly functions
376 - MJPEG/AVI1 to JPEG/JFIF bitstream filter
377 - ASS subtitle encoder and decoder
378 - IEC 61937 encapsulation for E-AC-3, TrueHD, DTS-HD (for HDMI passthrough)
379 - overlay filter added
380 - rename aspect filter to setdar, and pixelaspect to setsar
382 - Mobotix .mxg demuxer
383 - frei0r source added
384 - hqdn3d filter added
385 - RTP depacketization of QCELP
387 - gradfun filter added
389 - replace the ocv_smooth filter with a more generic ocv filter
390 - Windows Televison (WTV) demuxer
391 - FFmpeg metadata format muxer and demuxer
392 - SubRip (srt) subtitle decoder
393 - floating-point AC-3 encoder added
395 - ffmpeg -copytb option added
397 - Wing Commander IV movies decoder added
399 - Bink version 'b' audio and video decoder
400 - Bitmap Brothers JV playback system
401 - Apple HTTP Live Streaming protocol handler
402 - sndio support for playback and record
403 - Linux framebuffer input device added
404 - Chronomaster DFA decoder
405 - Mobotix MxPEG decoder
406 - AAC encoding via libvo-aacenc
407 - AMR-WB encoding via libvo-amrwbenc
409 - fieldorder video filter added
414 - PB-frame decoding for H.263
415 - deprecated vhook subsystem removed
416 - deprecated old scaler removed
418 - Alpha channel scaler
420 - RTP packetization of H.263
421 - RTP packetization of AMR
422 - RTP depacketization of Vorbis
423 - CorePNG decoding support
424 - Cook multichannel decoding support
425 - introduced avlanguage helpers in libavformat
426 - 8088flex TMV demuxer and decoder
427 - per-stream language-tags extraction in asfdec
428 - V210 decoder and encoder
429 - remaining GPL parts in AC-3 decoder converted to LGPL
431 - SoX native format muxer and demuxer
432 - AMR-NB decoding/encoding, AMR-WB decoding via OpenCORE libraries
434 - Electronic Arts Madcow decoder
435 - DivX (XSUB) subtitle encoder
436 - nonfree libamr support for AMR-NB/WB decoding/encoding removed
437 - experimental AAC encoder
438 - RTP depacketization of ASF and RTSP from WMS servers
439 - RTMP support in libavformat
440 - noX handling for OPT_BOOL X options
442 - IEC-61937 compatible Muxer
444 - Bluray (PGS) subtitle decoder
445 - LPCM support in MPEG-TS (HDMV RID as found on Blu-ray disks)
447 - Core Audio Format demuxer
449 - MD STUDIO audio demuxer
450 - RF64 support in WAV demuxer
451 - MPEG-4 Audio Lossless Coding (ALS) decoder
452 - -formats option split into -formats, -codecs, -bsfs, and -protocols
454 - CDG demuxer and decoder
456 - Auravision Aura 1 and 2 decoders
457 - Deluxe Paint Animation playback system
459 - Adobe Filmstrip muxer and demuxer
460 - RTP depacketization of H.263
461 - Bink demuxer and audio/video decoders
462 - enable symbol versioning by default for linkers that support it
463 - IFF PBM/ILBM bitmap decoder
466 - RTP depacketization of AMR
472 - Kega Game Video (KGV1) decoder
473 - VorbisComment writing for FLAC, Ogg FLAC and Ogg Speex files
474 - RTP depacketization of Theora
475 - HTTP Digest authentication
476 - RTMP/RTMPT/RTMPS/RTMPE/RTMPTE protocol support via librtmp
477 - Psygnosis YOP demuxer and video decoder
478 - spectral extension support in the E-AC-3 decoder
479 - unsharp video filter
480 - RTP hinting in the mov/3gp/mp4 muxer
481 - Dirac in Ogg demuxing
482 - seek to keyframes in Ogg
483 - 4:2:2 and 4:4:4 Theora decoding
484 - 35% faster VP3/Theora decoding
485 - faster AAC decoding
486 - faster H.264 decoding
487 - RealAudio 1.0 (14.4K) encoder
492 - DV50 AKA DVCPRO50 encoder, decoder, muxer and demuxer
493 - TechSmith Camtasia (TSCC) video decoder
494 - IBM Ultimotion (ULTI) video decoder
495 - Sierra Online audio file demuxer and decoder
496 - Apple QuickDraw (qdrw) video decoder
497 - Creative ADPCM audio decoder (16 bits as well as 8 bits schemes)
498 - Electronic Arts Multimedia (WVE/UV2/etc.) file demuxer
499 - Miro VideoXL (VIXL) video decoder
500 - H.261 video encoder
502 - Nullsoft Video (NSV) file demuxer
503 - Shorten audio decoder
505 - Apple Lossless Audio Codec (ALAC) decoder
506 - Winnov WNV1 video decoder
507 - Autodesk Animator Studio Codec (AASC) decoder
508 - Indeo 2 video decoder
509 - Fraps FPS1 video decoder
510 - Snow video encoder/decoder
511 - Sonic audio encoder/decoder
512 - Vorbis audio decoder
513 - Macromedia ADPCM decoder
514 - Duck TrueMotion 2 video decoder
515 - support for decoding FLX and DTA extensions in FLIC files
516 - H.264 custom quantization matrices support
517 - ffserver fixed, it should now be usable again
519 - Real Cooker audio decoder
520 - TrueSpeech audio decoder
521 - WMA2 audio decoder fixed, now all files should play correctly
522 - RealAudio 14.4 and 28.8 decoders fixed
524 - build system improvements
525 - tabs and trailing whitespace removed from the codebase
526 - CamStudio video decoder
527 - AIFF/AIFF-C audio format, encoding and decoding
528 - ADTS AAC file reading and writing
529 - Creative VOC file reading and writing
530 - American Laser Games multimedia (*.mm) playback system
531 - Zip Motion Blocks Video decoder
532 - improved Theora/VP3 decoder
533 - True Audio (TTA) decoder
534 - AVS demuxer and video decoder
536 - Smacker demuxer and decoder
537 - NuppelVideo/MythTV demuxer and RTjpeg decoder
539 - MPEG-2 intra VLC support
540 - MPEG-2 4:2:2 encoder
541 - Flash Screen Video decoder
543 - Chinese AVS decoder
546 - VC-1/WMV3/WMV9 video decoder
549 - VMware video decoder
552 - WavPack lossless audio decoder
553 - Targa (.TGA) picture decoder
554 - Vorbis audio encoder
555 - Delphine Software .cin demuxer/audio and video decoder
556 - Tiertex .seq demuxer/video decoder
558 - TIFF picture encoder and decoder
559 - GIF picture decoder
560 - Intel Music Coder decoder
561 - Zip Motion Blocks Video encoder
563 - Flash Screen Video encoder
564 - Theora encoding via libtheora
567 - GSM-MS encoder and decoder
569 - DXA demuxer and decoder
571 - Gamecube movie (.THP) playback system
572 - Blackfin optimizations
573 - Interplay C93 demuxer and video decoder
574 - Bethsoft VID demuxer and video decoder
577 - V.Flash PTX decoder
578 - RoQ muxer, RoQ audio encoder
579 - Renderware TXD demuxer and decoder
580 - extern C declarations for C++ removed from headers
581 - sws_flags command line option
585 - OS/2 support removed and restored again
588 - additional SPARC (VIS) optimizations
590 - slice-based parallel H.264 decoding
591 - Monkey's Audio demuxer and decoder
592 - AMV audio and video decoder
594 - H.264 PAFF decoding
595 - Nellymoser ASAO decoder
596 - Beam Software SIFF demuxer and decoder
597 - libvorbis Vorbis decoding removed in favor of native decoder
598 - IntraX8 (J-Frame) subdecoder for WMV2 and VC-1
599 - Ogg (Theora, Vorbis and FLAC) muxer
600 - The "device" muxers and demuxers are now in a new libavdevice library
601 - PC Paintbrush PCX decoder
602 - Sun Rasterfile decoder
603 - TechnoTrend PVA demuxer
604 - Linux Media Labs MPEG-4 (LMLM4) demuxer
605 - AVM2 (Flash 9) SWF muxer
606 - QT variant of IMA ADPCM encoder
608 - iPod/iPhone compatible mp4 muxer
610 - MSN TCP Webcam stream demuxer
611 - RL2 demuxer / decoder
614 - non-recursive Makefiles
616 - MAXIS EA XA (.xa) demuxer / decoder
620 - Electronic Arts CMV decoder
621 - Motion Pixels Video decoder
622 - Motion Pixels MVI demuxer
623 - removed animated GIF decoder/demuxer
624 - D-Cinema audio muxer
625 - Electronic Arts TGV decoder
626 - Apple Lossless Audio Codec (ALAC) encoder
628 - floating point PCM encoder/decoder
630 - DV100 AKA DVCPRO HD decoder and demuxer
631 - E-AC-3 support added to AC-3 decoder
632 - Nellymoser ASAO encoder
633 - ASS and SSA demuxer and muxer
634 - liba52 wrapper removed
635 - SVQ3 watermark decoding support
636 - Speex decoding via libspeex
637 - Electronic Arts TGQ decoder
639 - QCELP / PureVoice decoder
641 - hybrid WavPack support
642 - R3D REDCODE demuxer
643 - ALSA support for playback and record
644 - Electronic Arts TQI decoder
645 - OpenJPEG based JPEG 2000 decoder
646 - NC (NC4600) camera file demuxer
647 - Gopher client support
649 - generic metadata API
654 - DV encoder, DV muxer
655 - Microsoft RLE video decoder
656 - Microsoft Video-1 decoder
657 - Apple Animation (RLE) decoder
658 - Apple Graphics (SMC) decoder
659 - Apple Video (RPZA) decoder
661 - Sega FILM (CPK) file demuxer
662 - Westwood multimedia support (VQA & AUD files)
663 - Id Quake II CIN playback support
665 - FLIC playback support
666 - RealVideo 2.0 (RV20) decoder
667 - Duck TrueMotion v1 (DUCK) video decoder
668 - Sierra VMD demuxer and video decoder
669 - MSZH and ZLIB decoder support
673 - rate distortion optimal cbp support
674 - rate distorted optimal ac prediction for MPEG-4
675 - rate distorted optimal lambda->qp support
676 - AAC encoding with libfaac
677 - Sunplus JPEG codec (SP5X) support
678 - use Lagrange multipler instead of QP for ratecontrol
679 - Theora/VP3 decoding support
680 - XA and ADX ADPCM codecs
681 - export MPEG-2 active display area / pan scan
682 - Add support for configuring with IBM XLC
683 - floating point AAN DCT
684 - initial support for zygo video (not complete)
686 - new audio/video parser API
688 - av_read_frame() and av_seek_frame() support
689 - missing last frame fixes
690 - seek by mouse in ffplay
691 - noise reduction of DCT coefficients
692 - H.263 OBMC & 4MV support
693 - H.263 alternative inter vlc support
695 - H.263 slice structured mode
696 - interlaced DCT support for MPEG-2 encoding
697 - stuffing to stay above min_bitrate
698 - MB type & QP visualization
699 - frame stepping for ffplay
700 - interlaced motion estimation
701 - alternate scantable support
702 - SVCD scan offset support
705 - quantizer noise shaping
706 - G.726 ADPCM audio codec
708 - multithreaded/SMP motion estimation
709 - multithreaded/SMP encoding for MPEG-1/MPEG-2/MPEG-4/H.263
710 - multithreaded/SMP decoding for MPEG-2
712 - Metrowerks CodeWarrior suppport
713 - H.263+ custom pcf support
714 - nicer output for 'ffmpeg -formats'
716 - SGI image format, encoding and decoding
717 - H.264 loop filter support
718 - H.264 CABAC support
719 - nicer looking arrows for the motion vector visualization
720 - improved VCD support
721 - audio timestamp drift compensation
722 - MPEG-2 YUV 422/444 support
723 - polyphase kaiser windowed sinc and blackman nuttall windowed sinc audio resample
724 - better image scaling
726 - correctly interleave packets during encoding
727 - VIS optimized motion compensation
728 - intra_dc_precision>0 encoding support
729 - support reuse of motion vectors/MB types/field select values of the source video
730 - more accurate deblock filter
732 - many optimizations and bugfixes
733 - FunCom ISS audio file demuxer and according ADPCM decoding
738 - MPEG-2 video encoding (Michael)
739 - Id RoQ playback subsystem (Mike Melanson and Tim Ferguson)
740 - Wing Commander III Movie (.mve) file playback subsystem (Mike Melanson
742 - Xan DPCM audio decoder (Mario Brito)
743 - Interplay MVE playback subsystem (Mike Melanson)
744 - Duck DK3 and DK4 ADPCM audio decoders (Mike Melanson)
749 - RealAudio 1.0 (14_4) and 2.0 (28_8) native decoders. Author unknown, code from mplayerhq
750 (originally from public domain player for Amiga at http://www.honeypot.net/audio)
751 - current version now also compiles with older GCC (Fabrice)
752 - 4X multimedia playback system including 4xm file demuxer (Mike
753 Melanson), and 4X video and audio codecs (Michael)
754 - Creative YUV (CYUV) decoder (Mike Melanson)
755 - FFV1 codec (our very simple lossless intra only codec, compresses much better
756 than HuffYUV) (Michael)
757 - ASV1 (Asus), H.264, Intel indeo3 codecs have been added (various)
758 - tiny PNG encoder and decoder, tiny GIF decoder, PAM decoder (PPM with
759 alpha support), JPEG YUV colorspace support. (Fabrice Bellard)
760 - ffplay has been replaced with a newer version which uses SDL (optionally)
761 for multiplatform support (Fabrice)
762 - Sorenson Version 3 codec (SVQ3) support has been added (decoding only) - donated
764 - AMR format has been added (Johannes Carlsson)
765 - 3GP support has been added (Johannes Carlsson)
766 - VP3 codec has been added (Mike Melanson)
767 - more MPEG-1/2 fixes
768 - better multiplatform support, MS Visual Studio fixes (various)
769 - AltiVec optimizations (Magnus Damn and others)
770 - SH4 processor support has been added (BERO)
771 - new public interfaces (avcodec_get_pix_fmt) (Roman Shaposhnick)
772 - VOB streaming support (Brian Foley)
773 - better MP3 autodetection (Andriy Rysin)
774 - qpel encoding (Michael)
775 - 4mv+b frames encoding finally fixed (Michael)
776 - chroma ME (Michael)
777 - 5 comparison functions for ME (Michael)
778 - B-frame encoding speedup (Michael)
779 - WMV2 codec (unfinished - Michael)
780 - user specified diamond size for EPZS (Michael)
781 - Playstation STR playback subsystem, still experimental (Mike and Michael)
782 - ASV2 codec (Michael)
783 - CLJR decoder (Alex)
785 .. And lots more new enhancements and fixes.
790 - completely new integer only MPEG audio layer 1/2/3 decoder rewritten
792 - Recoded DCT and motion vector search with gcc (no longer depends on nasm)
793 - fix quantization bug in AC3 encoder
794 - added PCM codecs and format. Corrected WAV/AVI/ASF PCM issues
795 - added prototype ffplay program
796 - added GOB header parsing on H.263/H.263+ decoder (Juanjo)
797 - bug fix on MCBPC tables of H.263 (Juanjo)
798 - bug fix on DC coefficients of H.263 (Juanjo)
799 - added Advanced Prediction Mode on H.263/H.263+ decoder (Juanjo)
800 - now we can decode H.263 streams found in QuickTime files (Juanjo)
801 - now we can decode H.263 streams found in VIVO v1 files(Juanjo)
802 - preliminary RTP "friendly" mode for H.263/H.263+ coding. (Juanjo)
803 - added GOB header for H.263/H.263+ coding on RTP mode (Juanjo)
804 - now H.263 picture size is returned on the first decoded frame (Juanjo)
805 - added first regression tests
806 - added MPEG-2 TS demuxer
807 - new demux API for libav
808 - more accurate and faster IDCT (Michael)
809 - faster and entropy-controlled motion search (Michael)
810 - two pass video encoding (Michael)
811 - new video rate control (Michael)
812 - added MSMPEG4V1, MSMPEGV2 and WMV1 support (Michael)
813 - great performance improvement of video encoders and decoders (Michael)
814 - new and faster bit readers and vlc parsers (Michael)
815 - high quality encoding mode: tries all macroblock/VLC types (Michael)
816 - added DV video decoder
817 - preliminary RTP/RTSP support in ffserver and libavformat
818 - H.263+ AIC decoding/encoding support (Juanjo)
819 - VCD MPEG-PS mode (Juanjo)
820 - PSNR stuff (Juanjo)
821 - simple stats output (Juanjo)
822 - 16-bit and 15-bit RGB/BGR/GBR support (Bisqwit)
827 - some header fixes (Zdenek Kabelac <kabi at informatics.muni.cz>)
828 - many MMX optimizations (Nick Kurshev <nickols_k at mail.ru>)
829 - added configure system (actually a small shell script)
830 - added MPEG audio layer 1/2/3 decoding using LGPL'ed mpglib by
831 Michael Hipp (temporary solution - waiting for integer only
833 - fixed VIDIOCSYNC interrupt
834 - added Intel H.263 decoding support ('I263' AVI fourCC)
835 - added Real Video 1.0 decoding (needs further testing)
836 - simplified image formats again. Added PGM format (=grey
837 pgm). Renamed old PGM to PGMYUV.
838 - fixed msmpeg4 slice issues (tell me if you still find problems)
839 - fixed OpenDivX bugs with newer versions (added VOL header decoding)
840 - added support for MPlayer interface
841 - added macroblock skip optimization
842 - added MJPEG decoder
843 - added mmx/mmxext IDCT from libmpeg2
844 - added pgmyuvpipe, ppm, and ppm_pipe formats (original patch by Celer
845 <celer at shell.scrypt.net>)
846 - added pixel format conversion layer (e.g. for MJPEG or PPM)
847 - added deinterlacing option
849 - MPEG-4 vol header fixes (Jonathan Marsden <snmjbm at pacbell.net>)
850 - ARM optimizations (Lionel Ulmer <lionel.ulmer at free.fr>).
851 - Windows porting of file converter
852 - added MJPEG raw format (input/ouput)
853 - added JPEG image format support (input/output)
858 - fixed some std header definitions (Bjorn Lindgren
859 <bjorn.e.lindgren at telia.com>).
860 - added MPEG demuxer (MPEG-1 and 2 compatible).
862 - added prototype RM demuxer
863 - added AC3 decoding (done with libac3 by Aaron Holtzman)
864 - added decoding codec parameter guessing (.e.g. for MPEG, because the
865 header does not include them)
866 - fixed header generation in MPEG-1, AVI and ASF muxer: wmplayer can now
867 play them (only tested video)
868 - fixed H.263 white bug
869 - fixed phase rounding in img resample filter
870 - add MMX code for polyphase img resample filter
871 - added CPU autodetection
872 - added generic title/author/copyright/comment string handling (ASF and RM
874 - added SWF demux to extract MP3 track (not usable yet because no MP3
876 - added fractional frame rate support
877 - codecs are no longer searched by read_header() (should fix ffserver
883 - BGR24 patch (initial patch by Jeroen Vreeken <pe1rxq at amsat.org>)
884 - fixed raw yuv output
885 - added motion rounding support in MPEG-4
886 - fixed motion bug rounding in MSMPEG4
887 - added B-frame handling in video core
888 - added full MPEG-1 decoding support
889 - added partial (frame only) MPEG-2 support
890 - changed the FOURCC code for H.263 to "U263" to be able to see the
891 +AVI/H.263 file with the UB Video H.263+ decoder. MPlayer works with
892 this +codec ;) (JuanJo).
893 - Halfpel motion estimation after MB type selection (JuanJo)
894 - added pgm and .Y.U.V output format
895 - suppressed 'img:' protocol. Simply use: /tmp/test%d.[pgm|Y] as input or
897 - added pgmpipe I/O format (original patch from Martin Aumueller
898 <lists at reserv.at>, but changed completely since we use a format
899 instead of a protocol)
904 - added H.263/MPEG-4/MSMPEG4 decoding support. MPEG-4 decoding support
905 (for OpenDivX) is almost complete: 8x8 MVs and rounding are
906 missing. MSMPEG4 support is complete.
907 - added prototype MPEG-1 decoder. Only I- and P-frames handled yet (it
908 can decode ffmpeg MPEGs :-)).
909 - added libavcodec API documentation (see apiexample.c).
910 - fixed image polyphase bug (the bottom of some images could be
912 - added support for non clipped motion vectors (decoding only)
913 and image sizes non-multiple of 16
914 - added support for AC prediction (decoding only)
915 - added file overwrite confirmation (can be disabled with -y)
916 - added custom size picture to H.263 using H.263+ (Juanjo)
921 - added MSMPEG4 (aka DivX) compatible encoder. Changed default codec
922 of AVI and ASF to DIV3.
923 - added -me option to set motion estimation method
924 (default=log). suppressed redundant -hq option.
925 - added options -acodec and -vcodec to force a given codec (useful for
928 - improved dct_quantize speed
929 - factorized some motion estimation code
934 - removing grab code from ffserver and moved it to ffmpeg. Added
935 multistream support to ffmpeg.
936 - added timeshifting support for live feeds (option ?date=xxx in the
938 - added high quality image resize code with polyphase filter (need
939 mmx/see optimization). Enable multiple image size support in ffserver.
940 - added multi live feed support in ffserver
941 - suppressed master feature from ffserver (it should be done with an
942 external program which opens the .ffm url and writes it to another
944 - added preliminary support for video stream parsing (WAV and AVI half
945 done). Added proper support for audio/video file conversion in
947 - added preliminary support for video file sending from ffserver
948 - redesigning I/O subsystem: now using URL based input and output
950 - added WAV format support
951 - added "tty user interface" to ffmpeg to stop grabbing gracefully
952 - added MMX/SSE optimizations to SAD (Sums of Absolutes Differences)
953 (Juan J. Sierralta P. a.k.a. "Juanjo" <juanjo at atmlab.utfsm.cl>)
954 - added MMX DCT from mpeg2_movie 1.5 (Juanjo)
955 - added new motion estimation algorithms, log and phods (Juanjo)
956 - changed directories: libav for format handling, libavcodec for
962 - added stereo in MPEG audio encoder
967 - added 'high quality' mode which use motion vectors. It can be used in
968 real time at low resolution.
969 - fixed rounding problems which caused quality problems at high
970 bitrates and large GOP size
973 version 0.3.2: small fixes
979 version 0.3.1: added avi/divx support
982 - added MPEG-4 codec compatible with OpenDivX. It is based on the H.263 codec
983 - added sound for flash format (not tested)
986 version 0.3: initial public release