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
27 - support ID3v2 tags in ASF files
28 - reference-counting for AVFrame and AVPacket data
29 - avconv now fails when input options are used for output file
31 - avconv options -filter_script and -filter_complex_script, which allow a
32 filtergraph description to be read from a file
33 - uniform options syntax across all filters
36 - asetpts filter (same as setpts, but for audio)
37 - trim and atrim filters
38 - avconv -t and -ss (output-only) options are now sample-accurate when
40 - Matroska muxer can now put the index at the beginning of the file.
41 - avconv -deinterlace option removed, the yadif filter should be used instead
42 - Apple Intermediate Codec decoder
43 - Escape 130 video decoder
44 - support for slice multithreading in libavfilter
45 - VC-1 interlaced B-frame support
46 - support for WavPack muxing (raw and in Matroska)
48 - WavPack encoding through libwavpack
49 - Added the -n parameter to avconv
51 - when transcoding with avconv (i.e. not streamcopying), -ss is now accurate
52 even when used as an input option. Previous behavior can be restored with
53 the -noaccurate_seek option.
54 - avconv -t option can now be used for inputs, to limit the duration of
55 data read from an input file
56 - Voxware MetaSound decoder
58 - Error Resilient AAC syntax (ER AAC LC) decoding
59 - Low Delay AAC (ER AAC LD) decoding
60 - mux chapters in ASF files
61 - Opus in Ogg demuxing
62 - Enhanced Low Delay AAC (ER AAC ELD) decoding (no LD SBR support)
64 - HNM version 4 demuxer and video decoder
66 - raw HEVC, HEVC in MOV/MP4, HEVC in Matroska, HEVC in MPEG-TS demuxing
67 - remove avplay -vismv option, which has not worked for a long time
69 - setsar/setdar filters now support variables in ratio expressions
70 - dar variable in the scale filter now returns the actual DAR (i.e. a * sar)
72 - support for decoding through VDPAU in avconv (the -hwaccel option)
73 - remove mp3_header_(de)compress bitstream filters
74 - stereoscopic 3d metadata handling
75 - png standalone parser
76 - WebP encoding via libwebp
79 - Mirillis FIC video decoder
81 - compand audio filter
85 - av_basename and av_dirname
86 - adobe and limelight publisher authentication in RTMP
87 - VDPAU hardware acceleration through normal hwaccel
92 - ashowinfo audio filter
93 - 24-bit FLAC encoding
95 - deprecated the avconv -vol option. the volume filter is to be used instead.
96 - multi-channel ALAC encoding up to 7.1
97 - TAK demuxer, parser, and decoder
98 - adaptive frame-level multithreading for H.264
102 - metadata (INFO tag) support in WAV muxer
103 - support for building DLLs using MSVC
104 - remove avserver daemon mode
105 - support building on the Plan 9 operating system
106 - ffv1: support version 1.3
111 - XWD encoder and decoder
112 - Support for fragmentation in the mov/mp4 muxer
113 - ISMV (Smooth Streaming) muxer
114 - CDXL demuxer and decoder
115 - Apple ProRes encoder
116 - Sun Rasterfile Encoder
118 - ID3v2 attached pictures reading and writing
119 - WMA Lossless decoder
121 - RealAudio Lossless decoder
123 - drop support for avconv without libavfilter
124 - add libavresample audio conversion library
125 - audio filters support in libavfilter and avconv
129 - avprobe output is now standard INI or JSON. The old format can still
130 be used with -of old.
131 - Indeo Audio decoder
132 - channelsplit audio filter
133 - RTMPT protocol support
134 - iLBC encoding/decoding via libilbc
135 - Microsoft Screen 1 decoder
137 - audio channel mapping filter
138 - Microsoft ATC Screen decoder
140 - TechSmith Screen Codec 2 decoder
141 - AAC encoding via libfdk-aac
142 - Microsoft Expression Encoder Screen decoder
143 - RTMPS protocol support
144 - RTMPTS protocol support
145 - JPEG 2000 encoding support through OpenJPEG
146 - G.723.1 demuxer and decoder
147 - RTMPE protocol support
148 - RTMPTE protocol support
149 - Canopus Lossless Codec decoder
150 - avconv -shortest option is now per-output file,
151 -pass and -passlogfile are now per-output stream
153 - Microsoft Screen 2 decoder
154 - RTP depacketization of JPEG
155 - Smooth Streaming live segmenter muxer
156 - RTP packetization of JPEG
157 - Opus decoder and encoder using libopus
158 - remove -same_quant, it hasn't worked for years
159 - support for building with MSVC
170 - Automatic thread count based on detection number of (available) CPU cores
171 - Deprecate libpostproc. If desired, the switch --enable-postproc will
172 enable it but it may be removed in a later Libav release.
173 - rv34: frame-level multi-threading
174 - optimized iMDCT transform on x86 using SSE for for mpegaudiodec
180 - Flash Screen Video 2 decoder
181 - ffplay/ffprobe/ffserver renamed to avplay/avprobe/avserver
182 - ffmpeg deprecated, added avconv, which is almost the same for now, except
183 for a few incompatible changes in the options, which will hopefully make them
184 easier to use. The changes are:
185 * The options placement is now strictly enforced! While in theory the
186 options for ffmpeg should be given in [input options] -i INPUT [output
187 options] OUTPUT order, in practice it was possible to give output options
188 before the -i and it mostly worked. Except when it didn't - the behavior was
189 a bit inconsistent. In avconv, it is not possible to mix input and output
190 options. All non-global options are reset after an input or output filename.
191 * All per-file options are now truly per-file - they apply only to the next
192 input or output file and specifying different values for different files
193 will now work properly (notably -ss and -t options).
194 * All per-stream options are now truly per-stream - it is possible to
195 specify which stream(s) should a given option apply to. See the Stream
196 specifiers section in the avconv manual for details.
197 * In ffmpeg some options (like -newvideo/-newaudio/...) are irregular in the
198 sense that they're specified after the output filename instead of before,
199 like all other options. In avconv this irregularity is removed, all options
200 apply to the next input or output file.
201 * -newvideo/-newaudio/-newsubtitle options were removed. Not only were they
202 irregular and highly confusing, they were also redundant. In avconv the -map
203 option will create new streams in the output file and map input streams to
204 them. E.g. avconv -i INPUT -map 0 OUTPUT will create an output stream for
205 each stream in the first input file.
206 * The -map option now has slightly different and more powerful syntax:
207 + Colons (':') are used to separate file index/stream type/stream index
208 instead of dots. Comma (',') is used to separate the sync stream instead
209 of colon.. This is done for consistency with other options.
210 + It's possible to specify stream type. E.g. -map 0:a:2 creates an
211 output stream from the third input audio stream.
212 + Omitting the stream index now maps all the streams of the given type,
213 not just the first. E.g. -map 0:s creates output streams for all the
214 subtitle streams in the first input file.
215 + Since -map can now match multiple streams, negative mappings were
216 introduced. Negative mappings disable some streams from an already
217 defined map. E.g. '-map 0 -map -0:a:1' means 'create output streams for
218 all the stream in the first input file, except for the second audio
220 * There is a new option -c (or -codec) for choosing the decoder/encoder to
221 use, which allows to precisely specify target stream(s) consistently with
222 other options. E.g. -c:v lib264 sets the codec for all video streams, -c:a:0
223 libvorbis sets the codec for the first audio stream and -c copy copies all
224 the streams without reencoding. Old -vcodec/-acodec/-scodec options are now
226 * It is now possible to precisely specify which stream should an AVOption
227 apply to. E.g. -b:v:0 2M sets the bitrate for the first video stream, while
228 -b:a 128k sets the bitrate for all audio streams. Note that the old -ab 128k
229 syntax is deprecated and will stop working soon.
230 * -map_chapters now takes only an input file index and applies to the next
231 output file. This is consistent with how all the other options work.
232 * -map_metadata now takes only an input metadata specifier and applies to
233 the next output file. Output metadata specifier is now part of the option
234 name, similarly to the AVOptions/map/codec feature above.
235 * -metadata can now be used to set metadata on streams and chapters, e.g.
236 -metadata:s:1 language=eng sets the language of the first stream to 'eng'.
237 This made -vlang/-alang/-slang options redundant, so they were removed.
238 * -qscale option now uses stream specifiers and applies to all streams, not
239 just video. I.e. plain -qscale number would now apply to all streams. To get
240 the old behavior, use -qscale:v. Also there is now a shortcut -q for -qscale
241 and -aq is now an alias for -q:a.
242 * -vbsf/-absf/-sbsf options were removed and replaced by a -bsf option which
243 uses stream specifiers. Use -bsf:v/a/s instead of the old options.
244 * -itsscale option now uses stream specifiers, so its argument is only the
246 * -intra option was removed, use -g 0 for the same effect.
247 * -psnr option was removed, use -flags +psnr for the same effect.
248 * -vf option is now an alias to the new -filter option, which uses stream specifiers.
249 * -vframes/-aframes/-dframes options are now aliases to the new -frames option.
250 * -vtag/-atag/-stag options are now aliases to the new -tag option.
252 - Windows Media Image decoder
256 - libcdio-paranoia input device for audio CD grabbing
258 - Apple ProRes decoder
259 - CELT in Ogg demuxing
260 - VC-1 interlaced decoding
261 - lut, lutrgb, and lutyuv filters
264 - Speex encoding via libspeex
265 - 4:2:2 H.264 decoding support
266 - 4:2:2 and 4:4:4 H.264 encoding with libx264
267 - Pulseaudio input device
268 - replacement Indeo 3 decoder
269 - TLS/SSL and HTTPS protocol support
270 - AVOptions API rewritten and documented
271 - most of CODEC_FLAG2_*, some CODEC_FLAG_* and many codec-specific fields in
272 AVCodecContext deprecated. Codec private options should be used instead.
273 - Properly working defaults in libx264 wrapper, support for native presets.
274 - Encrypted OMA files support
275 - Discworld II BMV decoding support
277 - OS X Video Decoder Acceleration (VDA) support
278 - CRI ADX audio format muxer and demuxer
279 - Playstation Portable PMP format demuxer
280 - PCM format support in OMA demuxer
282 - Dxtory capture format decoder
283 - v410 QuickTime uncompressed 4:4:4 10-bit encoder and decoder
285 - Simple segmenting muxer
292 - E-AC-3 audio encoder
293 - ac3enc: add channel coupling support
294 - floating-point sample format support for (E-)AC-3, DCA, AAC, Vorbis decoders
295 - H.264/MPEG frame-level multithreading
296 - av_metadata_* functions renamed to av_dict_* and moved to libavutil
297 - 4:4:4 H.264 decoding support
298 - 10-bit H.264 optimizations for x86
299 - bump libswscale for recently reported ABI break
304 - VP8 frame-level multithreading
305 - NEON optimizations for VP8
306 - removed a lot of deprecated API cruft
307 - FFT and IMDCT optimizations for AVX (Sandy Bridge) processors
309 - SMPTE 302M AES3 audio decoder
310 - ffmpeg no longer quits after the 'q' key is pressed; use 'ctrl+c' instead
311 - 9bit and 10bit per sample support in the H.264 decoder
316 - WebM support in Matroska de/muxer
317 - low overhead Ogg muxing
319 - VP8 de/encoding via libvpx
320 - Demuxer for On2's IVF format
321 - Pictor/PC Paint decoder
323 - libfaad2 wrapper removed
324 - DTS-ES extension (XCh) decoding support
326 - RTSP tunneling over HTTP
327 - RTP depacketization of SVQ3
328 - -strict inofficial replaced by -strict unofficial
329 - ffplay -exitonkeydown and -exitonmousedown options added
330 - native GSM / GSM MS decoder
331 - RTP depacketization of QDM2
332 - ANSI/ASCII art playback system
333 - Lego Mindstorms RSO de/muxer
334 - SubRip subtitle file muxer and demuxer
335 - Chinese AVS encoding via libxavs
336 - ffprobe -show_packets option added
337 - RTP packetization of Theora and Vorbis
338 - RTP depacketization of MP4A-LATM
339 - RTP packetization and depacketization of VP8
341 - Apple HTTP Live Streaming demuxer
344 - G.722 ADPCM audio encoder/decoder
347 - frei0r wrapper filter
348 - change crop filter syntax to width:height:x:y
349 - make the crop filter accept parametric expressions
350 - make ffprobe accept AVFormatContext options
353 - Demuxer for Leitch/Harris' VR native stream format (LXF)
354 - RTP depacketization of the X-QT QuickTime format
355 - SAP (Session Announcement Protocol, RFC 2974) muxer and demuxer
357 - ffmpeg -crop* options removed
358 - transpose filter added
359 - ffmpeg -force_key_frames option added
360 - demuxer for receiving raw rtp:// URLs without an SDP description
361 - single stream LATM/LOAS decoder
362 - setpts filter added
363 - Win64 support for optimized x86 assembly functions
364 - MJPEG/AVI1 to JPEG/JFIF bitstream filter
365 - ASS subtitle encoder and decoder
366 - IEC 61937 encapsulation for E-AC-3, TrueHD, DTS-HD (for HDMI passthrough)
367 - overlay filter added
368 - rename aspect filter to setdar, and pixelaspect to setsar
370 - Mobotix .mxg demuxer
371 - frei0r source added
372 - hqdn3d filter added
373 - RTP depacketization of QCELP
375 - gradfun filter added
377 - replace the ocv_smooth filter with a more generic ocv filter
378 - Windows Televison (WTV) demuxer
379 - FFmpeg metadata format muxer and demuxer
380 - SubRip (srt) subtitle decoder
381 - floating-point AC-3 encoder added
383 - ffmpeg -copytb option added
385 - Wing Commander IV movies decoder added
387 - Bink version 'b' audio and video decoder
388 - Bitmap Brothers JV playback system
389 - Apple HTTP Live Streaming protocol handler
390 - sndio support for playback and record
391 - Linux framebuffer input device added
392 - Chronomaster DFA decoder
393 - Mobotix MxPEG decoder
394 - AAC encoding via libvo-aacenc
395 - AMR-WB encoding via libvo-amrwbenc
397 - fieldorder video filter added
402 - PB-frame decoding for H.263
403 - deprecated vhook subsystem removed
404 - deprecated old scaler removed
406 - Alpha channel scaler
408 - RTP packetization of H.263
409 - RTP packetization of AMR
410 - RTP depacketization of Vorbis
411 - CorePNG decoding support
412 - Cook multichannel decoding support
413 - introduced avlanguage helpers in libavformat
414 - 8088flex TMV demuxer and decoder
415 - per-stream language-tags extraction in asfdec
416 - V210 decoder and encoder
417 - remaining GPL parts in AC-3 decoder converted to LGPL
419 - SoX native format muxer and demuxer
420 - AMR-NB decoding/encoding, AMR-WB decoding via OpenCORE libraries
422 - Electronic Arts Madcow decoder
423 - DivX (XSUB) subtitle encoder
424 - nonfree libamr support for AMR-NB/WB decoding/encoding removed
425 - experimental AAC encoder
426 - RTP depacketization of ASF and RTSP from WMS servers
427 - RTMP support in libavformat
428 - noX handling for OPT_BOOL X options
430 - IEC-61937 compatible Muxer
432 - Bluray (PGS) subtitle decoder
433 - LPCM support in MPEG-TS (HDMV RID as found on Blu-ray disks)
435 - Core Audio Format demuxer
437 - MD STUDIO audio demuxer
438 - RF64 support in WAV demuxer
439 - MPEG-4 Audio Lossless Coding (ALS) decoder
440 - -formats option split into -formats, -codecs, -bsfs, and -protocols
442 - CDG demuxer and decoder
444 - Auravision Aura 1 and 2 decoders
445 - Deluxe Paint Animation playback system
447 - Adobe Filmstrip muxer and demuxer
448 - RTP depacketization of H.263
449 - Bink demuxer and audio/video decoders
450 - enable symbol versioning by default for linkers that support it
451 - IFF PBM/ILBM bitmap decoder
454 - RTP depacketization of AMR
460 - Kega Game Video (KGV1) decoder
461 - VorbisComment writing for FLAC, Ogg FLAC and Ogg Speex files
462 - RTP depacketization of Theora
463 - HTTP Digest authentication
464 - RTMP/RTMPT/RTMPS/RTMPE/RTMPTE protocol support via librtmp
465 - Psygnosis YOP demuxer and video decoder
466 - spectral extension support in the E-AC-3 decoder
467 - unsharp video filter
468 - RTP hinting in the mov/3gp/mp4 muxer
469 - Dirac in Ogg demuxing
470 - seek to keyframes in Ogg
471 - 4:2:2 and 4:4:4 Theora decoding
472 - 35% faster VP3/Theora decoding
473 - faster AAC decoding
474 - faster H.264 decoding
475 - RealAudio 1.0 (14.4K) encoder
480 - DV50 AKA DVCPRO50 encoder, decoder, muxer and demuxer
481 - TechSmith Camtasia (TSCC) video decoder
482 - IBM Ultimotion (ULTI) video decoder
483 - Sierra Online audio file demuxer and decoder
484 - Apple QuickDraw (qdrw) video decoder
485 - Creative ADPCM audio decoder (16 bits as well as 8 bits schemes)
486 - Electronic Arts Multimedia (WVE/UV2/etc.) file demuxer
487 - Miro VideoXL (VIXL) video decoder
488 - H.261 video encoder
490 - Nullsoft Video (NSV) file demuxer
491 - Shorten audio decoder
493 - Apple Lossless Audio Codec (ALAC) decoder
494 - Winnov WNV1 video decoder
495 - Autodesk Animator Studio Codec (AASC) decoder
496 - Indeo 2 video decoder
497 - Fraps FPS1 video decoder
498 - Snow video encoder/decoder
499 - Sonic audio encoder/decoder
500 - Vorbis audio decoder
501 - Macromedia ADPCM decoder
502 - Duck TrueMotion 2 video decoder
503 - support for decoding FLX and DTA extensions in FLIC files
504 - H.264 custom quantization matrices support
505 - ffserver fixed, it should now be usable again
507 - Real Cooker audio decoder
508 - TrueSpeech audio decoder
509 - WMA2 audio decoder fixed, now all files should play correctly
510 - RealAudio 14.4 and 28.8 decoders fixed
512 - build system improvements
513 - tabs and trailing whitespace removed from the codebase
514 - CamStudio video decoder
515 - AIFF/AIFF-C audio format, encoding and decoding
516 - ADTS AAC file reading and writing
517 - Creative VOC file reading and writing
518 - American Laser Games multimedia (*.mm) playback system
519 - Zip Motion Blocks Video decoder
520 - improved Theora/VP3 decoder
521 - True Audio (TTA) decoder
522 - AVS demuxer and video decoder
524 - Smacker demuxer and decoder
525 - NuppelVideo/MythTV demuxer and RTjpeg decoder
527 - MPEG-2 intra VLC support
528 - MPEG-2 4:2:2 encoder
529 - Flash Screen Video decoder
531 - Chinese AVS decoder
534 - VC-1/WMV3/WMV9 video decoder
537 - VMware video decoder
540 - WavPack lossless audio decoder
541 - Targa (.TGA) picture decoder
542 - Vorbis audio encoder
543 - Delphine Software .cin demuxer/audio and video decoder
544 - Tiertex .seq demuxer/video decoder
546 - TIFF picture encoder and decoder
547 - GIF picture decoder
548 - Intel Music Coder decoder
549 - Zip Motion Blocks Video encoder
551 - Flash Screen Video encoder
552 - Theora encoding via libtheora
555 - GSM-MS encoder and decoder
557 - DXA demuxer and decoder
559 - Gamecube movie (.THP) playback system
560 - Blackfin optimizations
561 - Interplay C93 demuxer and video decoder
562 - Bethsoft VID demuxer and video decoder
565 - V.Flash PTX decoder
566 - RoQ muxer, RoQ audio encoder
567 - Renderware TXD demuxer and decoder
568 - extern C declarations for C++ removed from headers
569 - sws_flags command line option
573 - OS/2 support removed and restored again
576 - additional SPARC (VIS) optimizations
578 - slice-based parallel H.264 decoding
579 - Monkey's Audio demuxer and decoder
580 - AMV audio and video decoder
582 - H.264 PAFF decoding
583 - Nellymoser ASAO decoder
584 - Beam Software SIFF demuxer and decoder
585 - libvorbis Vorbis decoding removed in favor of native decoder
586 - IntraX8 (J-Frame) subdecoder for WMV2 and VC-1
587 - Ogg (Theora, Vorbis and FLAC) muxer
588 - The "device" muxers and demuxers are now in a new libavdevice library
589 - PC Paintbrush PCX decoder
590 - Sun Rasterfile decoder
591 - TechnoTrend PVA demuxer
592 - Linux Media Labs MPEG-4 (LMLM4) demuxer
593 - AVM2 (Flash 9) SWF muxer
594 - QT variant of IMA ADPCM encoder
596 - iPod/iPhone compatible mp4 muxer
598 - MSN TCP Webcam stream demuxer
599 - RL2 demuxer / decoder
602 - non-recursive Makefiles
604 - MAXIS EA XA (.xa) demuxer / decoder
608 - Electronic Arts CMV decoder
609 - Motion Pixels Video decoder
610 - Motion Pixels MVI demuxer
611 - removed animated GIF decoder/demuxer
612 - D-Cinema audio muxer
613 - Electronic Arts TGV decoder
614 - Apple Lossless Audio Codec (ALAC) encoder
616 - floating point PCM encoder/decoder
618 - DV100 AKA DVCPRO HD decoder and demuxer
619 - E-AC-3 support added to AC-3 decoder
620 - Nellymoser ASAO encoder
621 - ASS and SSA demuxer and muxer
622 - liba52 wrapper removed
623 - SVQ3 watermark decoding support
624 - Speex decoding via libspeex
625 - Electronic Arts TGQ decoder
627 - QCELP / PureVoice decoder
629 - hybrid WavPack support
630 - R3D REDCODE demuxer
631 - ALSA support for playback and record
632 - Electronic Arts TQI decoder
633 - OpenJPEG based JPEG 2000 decoder
634 - NC (NC4600) camera file demuxer
635 - Gopher client support
637 - generic metadata API
642 - DV encoder, DV muxer
643 - Microsoft RLE video decoder
644 - Microsoft Video-1 decoder
645 - Apple Animation (RLE) decoder
646 - Apple Graphics (SMC) decoder
647 - Apple Video (RPZA) decoder
649 - Sega FILM (CPK) file demuxer
650 - Westwood multimedia support (VQA & AUD files)
651 - Id Quake II CIN playback support
653 - FLIC playback support
654 - RealVideo 2.0 (RV20) decoder
655 - Duck TrueMotion v1 (DUCK) video decoder
656 - Sierra VMD demuxer and video decoder
657 - MSZH and ZLIB decoder support
661 - rate distortion optimal cbp support
662 - rate distorted optimal ac prediction for MPEG-4
663 - rate distorted optimal lambda->qp support
664 - AAC encoding with libfaac
665 - Sunplus JPEG codec (SP5X) support
666 - use Lagrange multipler instead of QP for ratecontrol
667 - Theora/VP3 decoding support
668 - XA and ADX ADPCM codecs
669 - export MPEG-2 active display area / pan scan
670 - Add support for configuring with IBM XLC
671 - floating point AAN DCT
672 - initial support for zygo video (not complete)
674 - new audio/video parser API
676 - av_read_frame() and av_seek_frame() support
677 - missing last frame fixes
678 - seek by mouse in ffplay
679 - noise reduction of DCT coefficients
680 - H.263 OBMC & 4MV support
681 - H.263 alternative inter vlc support
683 - H.263 slice structured mode
684 - interlaced DCT support for MPEG-2 encoding
685 - stuffing to stay above min_bitrate
686 - MB type & QP visualization
687 - frame stepping for ffplay
688 - interlaced motion estimation
689 - alternate scantable support
690 - SVCD scan offset support
693 - quantizer noise shaping
694 - G.726 ADPCM audio codec
696 - multithreaded/SMP motion estimation
697 - multithreaded/SMP encoding for MPEG-1/MPEG-2/MPEG-4/H.263
698 - multithreaded/SMP decoding for MPEG-2
700 - Metrowerks CodeWarrior suppport
701 - H.263+ custom pcf support
702 - nicer output for 'ffmpeg -formats'
704 - SGI image format, encoding and decoding
705 - H.264 loop filter support
706 - H.264 CABAC support
707 - nicer looking arrows for the motion vector visualization
708 - improved VCD support
709 - audio timestamp drift compensation
710 - MPEG-2 YUV 422/444 support
711 - polyphase kaiser windowed sinc and blackman nuttall windowed sinc audio resample
712 - better image scaling
714 - correctly interleave packets during encoding
715 - VIS optimized motion compensation
716 - intra_dc_precision>0 encoding support
717 - support reuse of motion vectors/MB types/field select values of the source video
718 - more accurate deblock filter
720 - many optimizations and bugfixes
721 - FunCom ISS audio file demuxer and according ADPCM decoding
726 - MPEG-2 video encoding (Michael)
727 - Id RoQ playback subsystem (Mike Melanson and Tim Ferguson)
728 - Wing Commander III Movie (.mve) file playback subsystem (Mike Melanson
730 - Xan DPCM audio decoder (Mario Brito)
731 - Interplay MVE playback subsystem (Mike Melanson)
732 - Duck DK3 and DK4 ADPCM audio decoders (Mike Melanson)
737 - RealAudio 1.0 (14_4) and 2.0 (28_8) native decoders. Author unknown, code from mplayerhq
738 (originally from public domain player for Amiga at http://www.honeypot.net/audio)
739 - current version now also compiles with older GCC (Fabrice)
740 - 4X multimedia playback system including 4xm file demuxer (Mike
741 Melanson), and 4X video and audio codecs (Michael)
742 - Creative YUV (CYUV) decoder (Mike Melanson)
743 - FFV1 codec (our very simple lossless intra only codec, compresses much better
744 than HuffYUV) (Michael)
745 - ASV1 (Asus), H.264, Intel indeo3 codecs have been added (various)
746 - tiny PNG encoder and decoder, tiny GIF decoder, PAM decoder (PPM with
747 alpha support), JPEG YUV colorspace support. (Fabrice Bellard)
748 - ffplay has been replaced with a newer version which uses SDL (optionally)
749 for multiplatform support (Fabrice)
750 - Sorenson Version 3 codec (SVQ3) support has been added (decoding only) - donated
752 - AMR format has been added (Johannes Carlsson)
753 - 3GP support has been added (Johannes Carlsson)
754 - VP3 codec has been added (Mike Melanson)
755 - more MPEG-1/2 fixes
756 - better multiplatform support, MS Visual Studio fixes (various)
757 - AltiVec optimizations (Magnus Damn and others)
758 - SH4 processor support has been added (BERO)
759 - new public interfaces (avcodec_get_pix_fmt) (Roman Shaposhnick)
760 - VOB streaming support (Brian Foley)
761 - better MP3 autodetection (Andriy Rysin)
762 - qpel encoding (Michael)
763 - 4mv+b frames encoding finally fixed (Michael)
764 - chroma ME (Michael)
765 - 5 comparison functions for ME (Michael)
766 - B-frame encoding speedup (Michael)
767 - WMV2 codec (unfinished - Michael)
768 - user specified diamond size for EPZS (Michael)
769 - Playstation STR playback subsystem, still experimental (Mike and Michael)
770 - ASV2 codec (Michael)
771 - CLJR decoder (Alex)
773 .. And lots more new enhancements and fixes.
778 - completely new integer only MPEG audio layer 1/2/3 decoder rewritten
780 - Recoded DCT and motion vector search with gcc (no longer depends on nasm)
781 - fix quantization bug in AC3 encoder
782 - added PCM codecs and format. Corrected WAV/AVI/ASF PCM issues
783 - added prototype ffplay program
784 - added GOB header parsing on H.263/H.263+ decoder (Juanjo)
785 - bug fix on MCBPC tables of H.263 (Juanjo)
786 - bug fix on DC coefficients of H.263 (Juanjo)
787 - added Advanced Prediction Mode on H.263/H.263+ decoder (Juanjo)
788 - now we can decode H.263 streams found in QuickTime files (Juanjo)
789 - now we can decode H.263 streams found in VIVO v1 files(Juanjo)
790 - preliminary RTP "friendly" mode for H.263/H.263+ coding. (Juanjo)
791 - added GOB header for H.263/H.263+ coding on RTP mode (Juanjo)
792 - now H.263 picture size is returned on the first decoded frame (Juanjo)
793 - added first regression tests
794 - added MPEG-2 TS demuxer
795 - new demux API for libav
796 - more accurate and faster IDCT (Michael)
797 - faster and entropy-controlled motion search (Michael)
798 - two pass video encoding (Michael)
799 - new video rate control (Michael)
800 - added MSMPEG4V1, MSMPEGV2 and WMV1 support (Michael)
801 - great performance improvement of video encoders and decoders (Michael)
802 - new and faster bit readers and vlc parsers (Michael)
803 - high quality encoding mode: tries all macroblock/VLC types (Michael)
804 - added DV video decoder
805 - preliminary RTP/RTSP support in ffserver and libavformat
806 - H.263+ AIC decoding/encoding support (Juanjo)
807 - VCD MPEG-PS mode (Juanjo)
808 - PSNR stuff (Juanjo)
809 - simple stats output (Juanjo)
810 - 16-bit and 15-bit RGB/BGR/GBR support (Bisqwit)
815 - some header fixes (Zdenek Kabelac <kabi at informatics.muni.cz>)
816 - many MMX optimizations (Nick Kurshev <nickols_k at mail.ru>)
817 - added configure system (actually a small shell script)
818 - added MPEG audio layer 1/2/3 decoding using LGPL'ed mpglib by
819 Michael Hipp (temporary solution - waiting for integer only
821 - fixed VIDIOCSYNC interrupt
822 - added Intel H.263 decoding support ('I263' AVI fourCC)
823 - added Real Video 1.0 decoding (needs further testing)
824 - simplified image formats again. Added PGM format (=grey
825 pgm). Renamed old PGM to PGMYUV.
826 - fixed msmpeg4 slice issues (tell me if you still find problems)
827 - fixed OpenDivX bugs with newer versions (added VOL header decoding)
828 - added support for MPlayer interface
829 - added macroblock skip optimization
830 - added MJPEG decoder
831 - added mmx/mmxext IDCT from libmpeg2
832 - added pgmyuvpipe, ppm, and ppm_pipe formats (original patch by Celer
833 <celer at shell.scrypt.net>)
834 - added pixel format conversion layer (e.g. for MJPEG or PPM)
835 - added deinterlacing option
837 - MPEG-4 vol header fixes (Jonathan Marsden <snmjbm at pacbell.net>)
838 - ARM optimizations (Lionel Ulmer <lionel.ulmer at free.fr>).
839 - Windows porting of file converter
840 - added MJPEG raw format (input/ouput)
841 - added JPEG image format support (input/output)
846 - fixed some std header definitions (Bjorn Lindgren
847 <bjorn.e.lindgren at telia.com>).
848 - added MPEG demuxer (MPEG-1 and 2 compatible).
850 - added prototype RM demuxer
851 - added AC3 decoding (done with libac3 by Aaron Holtzman)
852 - added decoding codec parameter guessing (.e.g. for MPEG, because the
853 header does not include them)
854 - fixed header generation in MPEG-1, AVI and ASF muxer: wmplayer can now
855 play them (only tested video)
856 - fixed H.263 white bug
857 - fixed phase rounding in img resample filter
858 - add MMX code for polyphase img resample filter
859 - added CPU autodetection
860 - added generic title/author/copyright/comment string handling (ASF and RM
862 - added SWF demux to extract MP3 track (not usable yet because no MP3
864 - added fractional frame rate support
865 - codecs are no longer searched by read_header() (should fix ffserver
871 - BGR24 patch (initial patch by Jeroen Vreeken <pe1rxq at amsat.org>)
872 - fixed raw yuv output
873 - added motion rounding support in MPEG-4
874 - fixed motion bug rounding in MSMPEG4
875 - added B-frame handling in video core
876 - added full MPEG-1 decoding support
877 - added partial (frame only) MPEG-2 support
878 - changed the FOURCC code for H.263 to "U263" to be able to see the
879 +AVI/H.263 file with the UB Video H.263+ decoder. MPlayer works with
880 this +codec ;) (JuanJo).
881 - Halfpel motion estimation after MB type selection (JuanJo)
882 - added pgm and .Y.U.V output format
883 - suppressed 'img:' protocol. Simply use: /tmp/test%d.[pgm|Y] as input or
885 - added pgmpipe I/O format (original patch from Martin Aumueller
886 <lists at reserv.at>, but changed completely since we use a format
887 instead of a protocol)
892 - added H.263/MPEG-4/MSMPEG4 decoding support. MPEG-4 decoding support
893 (for OpenDivX) is almost complete: 8x8 MVs and rounding are
894 missing. MSMPEG4 support is complete.
895 - added prototype MPEG-1 decoder. Only I- and P-frames handled yet (it
896 can decode ffmpeg MPEGs :-)).
897 - added libavcodec API documentation (see apiexample.c).
898 - fixed image polyphase bug (the bottom of some images could be
900 - added support for non clipped motion vectors (decoding only)
901 and image sizes non-multiple of 16
902 - added support for AC prediction (decoding only)
903 - added file overwrite confirmation (can be disabled with -y)
904 - added custom size picture to H.263 using H.263+ (Juanjo)
909 - added MSMPEG4 (aka DivX) compatible encoder. Changed default codec
910 of AVI and ASF to DIV3.
911 - added -me option to set motion estimation method
912 (default=log). suppressed redundant -hq option.
913 - added options -acodec and -vcodec to force a given codec (useful for
916 - improved dct_quantize speed
917 - factorized some motion estimation code
922 - removing grab code from ffserver and moved it to ffmpeg. Added
923 multistream support to ffmpeg.
924 - added timeshifting support for live feeds (option ?date=xxx in the
926 - added high quality image resize code with polyphase filter (need
927 mmx/see optimization). Enable multiple image size support in ffserver.
928 - added multi live feed support in ffserver
929 - suppressed master feature from ffserver (it should be done with an
930 external program which opens the .ffm url and writes it to another
932 - added preliminary support for video stream parsing (WAV and AVI half
933 done). Added proper support for audio/video file conversion in
935 - added preliminary support for video file sending from ffserver
936 - redesigning I/O subsystem: now using URL based input and output
938 - added WAV format support
939 - added "tty user interface" to ffmpeg to stop grabbing gracefully
940 - added MMX/SSE optimizations to SAD (Sums of Absolutes Differences)
941 (Juan J. Sierralta P. a.k.a. "Juanjo" <juanjo at atmlab.utfsm.cl>)
942 - added MMX DCT from mpeg2_movie 1.5 (Juanjo)
943 - added new motion estimation algorithms, log and phods (Juanjo)
944 - changed directories: libav for format handling, libavcodec for
950 - added stereo in MPEG audio encoder
955 - added 'high quality' mode which use motion vectors. It can be used in
956 real time at low resolution.
957 - fixed rounding problems which caused quality problems at high
958 bitrates and large GOP size
961 version 0.3.2: small fixes
967 version 0.3.1: added avi/divx support
970 - added MPEG-4 codec compatible with OpenDivX. It is based on the H.263 codec
971 - added sound for flash format (not tested)
974 version 0.3: initial public release