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
31 - support ID3v2 tags in ASF files
32 - reference-counting for AVFrame and AVPacket data
33 - avconv now fails when input options are used for output file
35 - avconv options -filter_script and -filter_complex_script, which allow a
36 filtergraph description to be read from a file
37 - uniform options syntax across all filters
40 - asetpts filter (same as setpts, but for audio)
41 - trim and atrim filters
42 - avconv -t and -ss (output-only) options are now sample-accurate when
44 - Matroska muxer can now put the index at the beginning of the file.
45 - avconv -deinterlace option removed, the yadif filter should be used instead
46 - Apple Intermediate Codec decoder
47 - Escape 130 video decoder
48 - support for slice multithreading in libavfilter
49 - VC-1 interlaced B-frame support
50 - support for WavPack muxing (raw and in Matroska)
52 - WavPack encoding through libwavpack
53 - Added the -n parameter to avconv
55 - when transcoding with avconv (i.e. not streamcopying), -ss is now accurate
56 even when used as an input option. Previous behavior can be restored with
57 the -noaccurate_seek option.
58 - avconv -t option can now be used for inputs, to limit the duration of
59 data read from an input file
60 - Voxware MetaSound decoder
62 - Error Resilient AAC syntax (ER AAC LC) decoding
63 - Low Delay AAC (ER AAC LD) decoding
64 - mux chapters in ASF files
65 - Opus in Ogg demuxing
66 - Enhanced Low Delay AAC (ER AAC ELD) decoding (no LD SBR support)
68 - HNM version 4 demuxer and video decoder
70 - raw HEVC, HEVC in MOV/MP4, HEVC in Matroska, HEVC in MPEG-TS demuxing
71 - remove avplay -vismv option, which has not worked for a long time
73 - setsar/setdar filters now support variables in ratio expressions
74 - dar variable in the scale filter now returns the actual DAR (i.e. a * sar)
76 - support for decoding through VDPAU in avconv (the -hwaccel option)
77 - remove mp3_header_(de)compress bitstream filters
78 - stereoscopic 3d metadata handling
79 - png standalone parser
80 - WebP encoding via libwebp
83 - Mirillis FIC video decoder
85 - compand audio filter
89 - av_basename and av_dirname
90 - adobe and limelight publisher authentication in RTMP
91 - VDPAU hardware acceleration through normal hwaccel
96 - ashowinfo audio filter
97 - 24-bit FLAC encoding
99 - deprecated the avconv -vol option. the volume filter is to be used instead.
100 - multi-channel ALAC encoding up to 7.1
101 - TAK demuxer, parser, and decoder
102 - adaptive frame-level multithreading for H.264
106 - metadata (INFO tag) support in WAV muxer
107 - support for building DLLs using MSVC
108 - remove avserver daemon mode
109 - support building on the Plan 9 operating system
110 - ffv1: support version 1.3
115 - XWD encoder and decoder
116 - Support for fragmentation in the mov/mp4 muxer
117 - ISMV (Smooth Streaming) muxer
118 - CDXL demuxer and decoder
119 - Apple ProRes encoder
120 - Sun Rasterfile Encoder
122 - ID3v2 attached pictures reading and writing
123 - WMA Lossless decoder
125 - RealAudio Lossless decoder
127 - drop support for avconv without libavfilter
128 - add libavresample audio conversion library
129 - audio filters support in libavfilter and avconv
133 - avprobe output is now standard INI or JSON. The old format can still
134 be used with -of old.
135 - Indeo Audio decoder
136 - channelsplit audio filter
137 - RTMPT protocol support
138 - iLBC encoding/decoding via libilbc
139 - Microsoft Screen 1 decoder
141 - audio channel mapping filter
142 - Microsoft ATC Screen decoder
144 - TechSmith Screen Codec 2 decoder
145 - AAC encoding via libfdk-aac
146 - Microsoft Expression Encoder Screen decoder
147 - RTMPS protocol support
148 - RTMPTS protocol support
149 - JPEG 2000 encoding support through OpenJPEG
150 - G.723.1 demuxer and decoder
151 - RTMPE protocol support
152 - RTMPTE protocol support
153 - Canopus Lossless Codec decoder
154 - avconv -shortest option is now per-output file,
155 -pass and -passlogfile are now per-output stream
157 - Microsoft Screen 2 decoder
158 - RTP depacketization of JPEG
159 - Smooth Streaming live segmenter muxer
160 - RTP packetization of JPEG
161 - Opus decoder and encoder using libopus
162 - remove -same_quant, it hasn't worked for years
163 - support for building with MSVC
174 - Automatic thread count based on detection number of (available) CPU cores
175 - Deprecate libpostproc. If desired, the switch --enable-postproc will
176 enable it but it may be removed in a later Libav release.
177 - rv34: frame-level multi-threading
178 - optimized iMDCT transform on x86 using SSE for for mpegaudiodec
184 - Flash Screen Video 2 decoder
185 - ffplay/ffprobe/ffserver renamed to avplay/avprobe/avserver
186 - ffmpeg deprecated, added avconv, which is almost the same for now, except
187 for a few incompatible changes in the options, which will hopefully make them
188 easier to use. The changes are:
189 * The options placement is now strictly enforced! While in theory the
190 options for ffmpeg should be given in [input options] -i INPUT [output
191 options] OUTPUT order, in practice it was possible to give output options
192 before the -i and it mostly worked. Except when it didn't - the behavior was
193 a bit inconsistent. In avconv, it is not possible to mix input and output
194 options. All non-global options are reset after an input or output filename.
195 * All per-file options are now truly per-file - they apply only to the next
196 input or output file and specifying different values for different files
197 will now work properly (notably -ss and -t options).
198 * All per-stream options are now truly per-stream - it is possible to
199 specify which stream(s) should a given option apply to. See the Stream
200 specifiers section in the avconv manual for details.
201 * In ffmpeg some options (like -newvideo/-newaudio/...) are irregular in the
202 sense that they're specified after the output filename instead of before,
203 like all other options. In avconv this irregularity is removed, all options
204 apply to the next input or output file.
205 * -newvideo/-newaudio/-newsubtitle options were removed. Not only were they
206 irregular and highly confusing, they were also redundant. In avconv the -map
207 option will create new streams in the output file and map input streams to
208 them. E.g. avconv -i INPUT -map 0 OUTPUT will create an output stream for
209 each stream in the first input file.
210 * The -map option now has slightly different and more powerful syntax:
211 + Colons (':') are used to separate file index/stream type/stream index
212 instead of dots. Comma (',') is used to separate the sync stream instead
213 of colon.. This is done for consistency with other options.
214 + It's possible to specify stream type. E.g. -map 0:a:2 creates an
215 output stream from the third input audio stream.
216 + Omitting the stream index now maps all the streams of the given type,
217 not just the first. E.g. -map 0:s creates output streams for all the
218 subtitle streams in the first input file.
219 + Since -map can now match multiple streams, negative mappings were
220 introduced. Negative mappings disable some streams from an already
221 defined map. E.g. '-map 0 -map -0:a:1' means 'create output streams for
222 all the stream in the first input file, except for the second audio
224 * There is a new option -c (or -codec) for choosing the decoder/encoder to
225 use, which allows to precisely specify target stream(s) consistently with
226 other options. E.g. -c:v lib264 sets the codec for all video streams, -c:a:0
227 libvorbis sets the codec for the first audio stream and -c copy copies all
228 the streams without reencoding. Old -vcodec/-acodec/-scodec options are now
230 * It is now possible to precisely specify which stream should an AVOption
231 apply to. E.g. -b:v:0 2M sets the bitrate for the first video stream, while
232 -b:a 128k sets the bitrate for all audio streams. Note that the old -ab 128k
233 syntax is deprecated and will stop working soon.
234 * -map_chapters now takes only an input file index and applies to the next
235 output file. This is consistent with how all the other options work.
236 * -map_metadata now takes only an input metadata specifier and applies to
237 the next output file. Output metadata specifier is now part of the option
238 name, similarly to the AVOptions/map/codec feature above.
239 * -metadata can now be used to set metadata on streams and chapters, e.g.
240 -metadata:s:1 language=eng sets the language of the first stream to 'eng'.
241 This made -vlang/-alang/-slang options redundant, so they were removed.
242 * -qscale option now uses stream specifiers and applies to all streams, not
243 just video. I.e. plain -qscale number would now apply to all streams. To get
244 the old behavior, use -qscale:v. Also there is now a shortcut -q for -qscale
245 and -aq is now an alias for -q:a.
246 * -vbsf/-absf/-sbsf options were removed and replaced by a -bsf option which
247 uses stream specifiers. Use -bsf:v/a/s instead of the old options.
248 * -itsscale option now uses stream specifiers, so its argument is only the
250 * -intra option was removed, use -g 0 for the same effect.
251 * -psnr option was removed, use -flags +psnr for the same effect.
252 * -vf option is now an alias to the new -filter option, which uses stream specifiers.
253 * -vframes/-aframes/-dframes options are now aliases to the new -frames option.
254 * -vtag/-atag/-stag options are now aliases to the new -tag option.
256 - Windows Media Image decoder
260 - libcdio-paranoia input device for audio CD grabbing
262 - Apple ProRes decoder
263 - CELT in Ogg demuxing
264 - VC-1 interlaced decoding
265 - lut, lutrgb, and lutyuv filters
268 - Speex encoding via libspeex
269 - 4:2:2 H.264 decoding support
270 - 4:2:2 and 4:4:4 H.264 encoding with libx264
271 - Pulseaudio input device
272 - replacement Indeo 3 decoder
273 - TLS/SSL and HTTPS protocol support
274 - AVOptions API rewritten and documented
275 - most of CODEC_FLAG2_*, some CODEC_FLAG_* and many codec-specific fields in
276 AVCodecContext deprecated. Codec private options should be used instead.
277 - Properly working defaults in libx264 wrapper, support for native presets.
278 - Encrypted OMA files support
279 - Discworld II BMV decoding support
281 - OS X Video Decoder Acceleration (VDA) support
282 - CRI ADX audio format muxer and demuxer
283 - Playstation Portable PMP format demuxer
284 - PCM format support in OMA demuxer
286 - Dxtory capture format decoder
287 - v410 QuickTime uncompressed 4:4:4 10-bit encoder and decoder
289 - Simple segmenting muxer
296 - E-AC-3 audio encoder
297 - ac3enc: add channel coupling support
298 - floating-point sample format support for (E-)AC-3, DCA, AAC, Vorbis decoders
299 - H.264/MPEG frame-level multithreading
300 - av_metadata_* functions renamed to av_dict_* and moved to libavutil
301 - 4:4:4 H.264 decoding support
302 - 10-bit H.264 optimizations for x86
303 - bump libswscale for recently reported ABI break
308 - VP8 frame-level multithreading
309 - NEON optimizations for VP8
310 - removed a lot of deprecated API cruft
311 - FFT and IMDCT optimizations for AVX (Sandy Bridge) processors
313 - SMPTE 302M AES3 audio decoder
314 - ffmpeg no longer quits after the 'q' key is pressed; use 'ctrl+c' instead
315 - 9bit and 10bit per sample support in the H.264 decoder
320 - WebM support in Matroska de/muxer
321 - low overhead Ogg muxing
323 - VP8 de/encoding via libvpx
324 - Demuxer for On2's IVF format
325 - Pictor/PC Paint decoder
327 - libfaad2 wrapper removed
328 - DTS-ES extension (XCh) decoding support
330 - RTSP tunneling over HTTP
331 - RTP depacketization of SVQ3
332 - -strict inofficial replaced by -strict unofficial
333 - ffplay -exitonkeydown and -exitonmousedown options added
334 - native GSM / GSM MS decoder
335 - RTP depacketization of QDM2
336 - ANSI/ASCII art playback system
337 - Lego Mindstorms RSO de/muxer
338 - SubRip subtitle file muxer and demuxer
339 - Chinese AVS encoding via libxavs
340 - ffprobe -show_packets option added
341 - RTP packetization of Theora and Vorbis
342 - RTP depacketization of MP4A-LATM
343 - RTP packetization and depacketization of VP8
345 - Apple HTTP Live Streaming demuxer
348 - G.722 ADPCM audio encoder/decoder
351 - frei0r wrapper filter
352 - change crop filter syntax to width:height:x:y
353 - make the crop filter accept parametric expressions
354 - make ffprobe accept AVFormatContext options
357 - Demuxer for Leitch/Harris' VR native stream format (LXF)
358 - RTP depacketization of the X-QT QuickTime format
359 - SAP (Session Announcement Protocol, RFC 2974) muxer and demuxer
361 - ffmpeg -crop* options removed
362 - transpose filter added
363 - ffmpeg -force_key_frames option added
364 - demuxer for receiving raw rtp:// URLs without an SDP description
365 - single stream LATM/LOAS decoder
366 - setpts filter added
367 - Win64 support for optimized x86 assembly functions
368 - MJPEG/AVI1 to JPEG/JFIF bitstream filter
369 - ASS subtitle encoder and decoder
370 - IEC 61937 encapsulation for E-AC-3, TrueHD, DTS-HD (for HDMI passthrough)
371 - overlay filter added
372 - rename aspect filter to setdar, and pixelaspect to setsar
374 - Mobotix .mxg demuxer
375 - frei0r source added
376 - hqdn3d filter added
377 - RTP depacketization of QCELP
379 - gradfun filter added
381 - replace the ocv_smooth filter with a more generic ocv filter
382 - Windows Televison (WTV) demuxer
383 - FFmpeg metadata format muxer and demuxer
384 - SubRip (srt) subtitle decoder
385 - floating-point AC-3 encoder added
387 - ffmpeg -copytb option added
389 - Wing Commander IV movies decoder added
391 - Bink version 'b' audio and video decoder
392 - Bitmap Brothers JV playback system
393 - Apple HTTP Live Streaming protocol handler
394 - sndio support for playback and record
395 - Linux framebuffer input device added
396 - Chronomaster DFA decoder
397 - Mobotix MxPEG decoder
398 - AAC encoding via libvo-aacenc
399 - AMR-WB encoding via libvo-amrwbenc
401 - fieldorder video filter added
406 - PB-frame decoding for H.263
407 - deprecated vhook subsystem removed
408 - deprecated old scaler removed
410 - Alpha channel scaler
412 - RTP packetization of H.263
413 - RTP packetization of AMR
414 - RTP depacketization of Vorbis
415 - CorePNG decoding support
416 - Cook multichannel decoding support
417 - introduced avlanguage helpers in libavformat
418 - 8088flex TMV demuxer and decoder
419 - per-stream language-tags extraction in asfdec
420 - V210 decoder and encoder
421 - remaining GPL parts in AC-3 decoder converted to LGPL
423 - SoX native format muxer and demuxer
424 - AMR-NB decoding/encoding, AMR-WB decoding via OpenCORE libraries
426 - Electronic Arts Madcow decoder
427 - DivX (XSUB) subtitle encoder
428 - nonfree libamr support for AMR-NB/WB decoding/encoding removed
429 - experimental AAC encoder
430 - RTP depacketization of ASF and RTSP from WMS servers
431 - RTMP support in libavformat
432 - noX handling for OPT_BOOL X options
434 - IEC-61937 compatible Muxer
436 - Bluray (PGS) subtitle decoder
437 - LPCM support in MPEG-TS (HDMV RID as found on Blu-ray disks)
439 - Core Audio Format demuxer
441 - MD STUDIO audio demuxer
442 - RF64 support in WAV demuxer
443 - MPEG-4 Audio Lossless Coding (ALS) decoder
444 - -formats option split into -formats, -codecs, -bsfs, and -protocols
446 - CDG demuxer and decoder
448 - Auravision Aura 1 and 2 decoders
449 - Deluxe Paint Animation playback system
451 - Adobe Filmstrip muxer and demuxer
452 - RTP depacketization of H.263
453 - Bink demuxer and audio/video decoders
454 - enable symbol versioning by default for linkers that support it
455 - IFF PBM/ILBM bitmap decoder
458 - RTP depacketization of AMR
464 - Kega Game Video (KGV1) decoder
465 - VorbisComment writing for FLAC, Ogg FLAC and Ogg Speex files
466 - RTP depacketization of Theora
467 - HTTP Digest authentication
468 - RTMP/RTMPT/RTMPS/RTMPE/RTMPTE protocol support via librtmp
469 - Psygnosis YOP demuxer and video decoder
470 - spectral extension support in the E-AC-3 decoder
471 - unsharp video filter
472 - RTP hinting in the mov/3gp/mp4 muxer
473 - Dirac in Ogg demuxing
474 - seek to keyframes in Ogg
475 - 4:2:2 and 4:4:4 Theora decoding
476 - 35% faster VP3/Theora decoding
477 - faster AAC decoding
478 - faster H.264 decoding
479 - RealAudio 1.0 (14.4K) encoder
484 - DV50 AKA DVCPRO50 encoder, decoder, muxer and demuxer
485 - TechSmith Camtasia (TSCC) video decoder
486 - IBM Ultimotion (ULTI) video decoder
487 - Sierra Online audio file demuxer and decoder
488 - Apple QuickDraw (qdrw) video decoder
489 - Creative ADPCM audio decoder (16 bits as well as 8 bits schemes)
490 - Electronic Arts Multimedia (WVE/UV2/etc.) file demuxer
491 - Miro VideoXL (VIXL) video decoder
492 - H.261 video encoder
494 - Nullsoft Video (NSV) file demuxer
495 - Shorten audio decoder
497 - Apple Lossless Audio Codec (ALAC) decoder
498 - Winnov WNV1 video decoder
499 - Autodesk Animator Studio Codec (AASC) decoder
500 - Indeo 2 video decoder
501 - Fraps FPS1 video decoder
502 - Snow video encoder/decoder
503 - Sonic audio encoder/decoder
504 - Vorbis audio decoder
505 - Macromedia ADPCM decoder
506 - Duck TrueMotion 2 video decoder
507 - support for decoding FLX and DTA extensions in FLIC files
508 - H.264 custom quantization matrices support
509 - ffserver fixed, it should now be usable again
511 - Real Cooker audio decoder
512 - TrueSpeech audio decoder
513 - WMA2 audio decoder fixed, now all files should play correctly
514 - RealAudio 14.4 and 28.8 decoders fixed
516 - build system improvements
517 - tabs and trailing whitespace removed from the codebase
518 - CamStudio video decoder
519 - AIFF/AIFF-C audio format, encoding and decoding
520 - ADTS AAC file reading and writing
521 - Creative VOC file reading and writing
522 - American Laser Games multimedia (*.mm) playback system
523 - Zip Motion Blocks Video decoder
524 - improved Theora/VP3 decoder
525 - True Audio (TTA) decoder
526 - AVS demuxer and video decoder
528 - Smacker demuxer and decoder
529 - NuppelVideo/MythTV demuxer and RTjpeg decoder
531 - MPEG-2 intra VLC support
532 - MPEG-2 4:2:2 encoder
533 - Flash Screen Video decoder
535 - Chinese AVS decoder
538 - VC-1/WMV3/WMV9 video decoder
541 - VMware video decoder
544 - WavPack lossless audio decoder
545 - Targa (.TGA) picture decoder
546 - Vorbis audio encoder
547 - Delphine Software .cin demuxer/audio and video decoder
548 - Tiertex .seq demuxer/video decoder
550 - TIFF picture encoder and decoder
551 - GIF picture decoder
552 - Intel Music Coder decoder
553 - Zip Motion Blocks Video encoder
555 - Flash Screen Video encoder
556 - Theora encoding via libtheora
559 - GSM-MS encoder and decoder
561 - DXA demuxer and decoder
563 - Gamecube movie (.THP) playback system
564 - Blackfin optimizations
565 - Interplay C93 demuxer and video decoder
566 - Bethsoft VID demuxer and video decoder
569 - V.Flash PTX decoder
570 - RoQ muxer, RoQ audio encoder
571 - Renderware TXD demuxer and decoder
572 - extern C declarations for C++ removed from headers
573 - sws_flags command line option
577 - OS/2 support removed and restored again
580 - additional SPARC (VIS) optimizations
582 - slice-based parallel H.264 decoding
583 - Monkey's Audio demuxer and decoder
584 - AMV audio and video decoder
586 - H.264 PAFF decoding
587 - Nellymoser ASAO decoder
588 - Beam Software SIFF demuxer and decoder
589 - libvorbis Vorbis decoding removed in favor of native decoder
590 - IntraX8 (J-Frame) subdecoder for WMV2 and VC-1
591 - Ogg (Theora, Vorbis and FLAC) muxer
592 - The "device" muxers and demuxers are now in a new libavdevice library
593 - PC Paintbrush PCX decoder
594 - Sun Rasterfile decoder
595 - TechnoTrend PVA demuxer
596 - Linux Media Labs MPEG-4 (LMLM4) demuxer
597 - AVM2 (Flash 9) SWF muxer
598 - QT variant of IMA ADPCM encoder
600 - iPod/iPhone compatible mp4 muxer
602 - MSN TCP Webcam stream demuxer
603 - RL2 demuxer / decoder
606 - non-recursive Makefiles
608 - MAXIS EA XA (.xa) demuxer / decoder
612 - Electronic Arts CMV decoder
613 - Motion Pixels Video decoder
614 - Motion Pixels MVI demuxer
615 - removed animated GIF decoder/demuxer
616 - D-Cinema audio muxer
617 - Electronic Arts TGV decoder
618 - Apple Lossless Audio Codec (ALAC) encoder
620 - floating point PCM encoder/decoder
622 - DV100 AKA DVCPRO HD decoder and demuxer
623 - E-AC-3 support added to AC-3 decoder
624 - Nellymoser ASAO encoder
625 - ASS and SSA demuxer and muxer
626 - liba52 wrapper removed
627 - SVQ3 watermark decoding support
628 - Speex decoding via libspeex
629 - Electronic Arts TGQ decoder
631 - QCELP / PureVoice decoder
633 - hybrid WavPack support
634 - R3D REDCODE demuxer
635 - ALSA support for playback and record
636 - Electronic Arts TQI decoder
637 - OpenJPEG based JPEG 2000 decoder
638 - NC (NC4600) camera file demuxer
639 - Gopher client support
641 - generic metadata API
646 - DV encoder, DV muxer
647 - Microsoft RLE video decoder
648 - Microsoft Video-1 decoder
649 - Apple Animation (RLE) decoder
650 - Apple Graphics (SMC) decoder
651 - Apple Video (RPZA) decoder
653 - Sega FILM (CPK) file demuxer
654 - Westwood multimedia support (VQA & AUD files)
655 - Id Quake II CIN playback support
657 - FLIC playback support
658 - RealVideo 2.0 (RV20) decoder
659 - Duck TrueMotion v1 (DUCK) video decoder
660 - Sierra VMD demuxer and video decoder
661 - MSZH and ZLIB decoder support
665 - rate distortion optimal cbp support
666 - rate distorted optimal ac prediction for MPEG-4
667 - rate distorted optimal lambda->qp support
668 - AAC encoding with libfaac
669 - Sunplus JPEG codec (SP5X) support
670 - use Lagrange multipler instead of QP for ratecontrol
671 - Theora/VP3 decoding support
672 - XA and ADX ADPCM codecs
673 - export MPEG-2 active display area / pan scan
674 - Add support for configuring with IBM XLC
675 - floating point AAN DCT
676 - initial support for zygo video (not complete)
678 - new audio/video parser API
680 - av_read_frame() and av_seek_frame() support
681 - missing last frame fixes
682 - seek by mouse in ffplay
683 - noise reduction of DCT coefficients
684 - H.263 OBMC & 4MV support
685 - H.263 alternative inter vlc support
687 - H.263 slice structured mode
688 - interlaced DCT support for MPEG-2 encoding
689 - stuffing to stay above min_bitrate
690 - MB type & QP visualization
691 - frame stepping for ffplay
692 - interlaced motion estimation
693 - alternate scantable support
694 - SVCD scan offset support
697 - quantizer noise shaping
698 - G.726 ADPCM audio codec
700 - multithreaded/SMP motion estimation
701 - multithreaded/SMP encoding for MPEG-1/MPEG-2/MPEG-4/H.263
702 - multithreaded/SMP decoding for MPEG-2
704 - Metrowerks CodeWarrior suppport
705 - H.263+ custom pcf support
706 - nicer output for 'ffmpeg -formats'
708 - SGI image format, encoding and decoding
709 - H.264 loop filter support
710 - H.264 CABAC support
711 - nicer looking arrows for the motion vector visualization
712 - improved VCD support
713 - audio timestamp drift compensation
714 - MPEG-2 YUV 422/444 support
715 - polyphase kaiser windowed sinc and blackman nuttall windowed sinc audio resample
716 - better image scaling
718 - correctly interleave packets during encoding
719 - VIS optimized motion compensation
720 - intra_dc_precision>0 encoding support
721 - support reuse of motion vectors/MB types/field select values of the source video
722 - more accurate deblock filter
724 - many optimizations and bugfixes
725 - FunCom ISS audio file demuxer and according ADPCM decoding
730 - MPEG-2 video encoding (Michael)
731 - Id RoQ playback subsystem (Mike Melanson and Tim Ferguson)
732 - Wing Commander III Movie (.mve) file playback subsystem (Mike Melanson
734 - Xan DPCM audio decoder (Mario Brito)
735 - Interplay MVE playback subsystem (Mike Melanson)
736 - Duck DK3 and DK4 ADPCM audio decoders (Mike Melanson)
741 - RealAudio 1.0 (14_4) and 2.0 (28_8) native decoders. Author unknown, code from mplayerhq
742 (originally from public domain player for Amiga at http://www.honeypot.net/audio)
743 - current version now also compiles with older GCC (Fabrice)
744 - 4X multimedia playback system including 4xm file demuxer (Mike
745 Melanson), and 4X video and audio codecs (Michael)
746 - Creative YUV (CYUV) decoder (Mike Melanson)
747 - FFV1 codec (our very simple lossless intra only codec, compresses much better
748 than HuffYUV) (Michael)
749 - ASV1 (Asus), H.264, Intel indeo3 codecs have been added (various)
750 - tiny PNG encoder and decoder, tiny GIF decoder, PAM decoder (PPM with
751 alpha support), JPEG YUV colorspace support. (Fabrice Bellard)
752 - ffplay has been replaced with a newer version which uses SDL (optionally)
753 for multiplatform support (Fabrice)
754 - Sorenson Version 3 codec (SVQ3) support has been added (decoding only) - donated
756 - AMR format has been added (Johannes Carlsson)
757 - 3GP support has been added (Johannes Carlsson)
758 - VP3 codec has been added (Mike Melanson)
759 - more MPEG-1/2 fixes
760 - better multiplatform support, MS Visual Studio fixes (various)
761 - AltiVec optimizations (Magnus Damn and others)
762 - SH4 processor support has been added (BERO)
763 - new public interfaces (avcodec_get_pix_fmt) (Roman Shaposhnick)
764 - VOB streaming support (Brian Foley)
765 - better MP3 autodetection (Andriy Rysin)
766 - qpel encoding (Michael)
767 - 4mv+b frames encoding finally fixed (Michael)
768 - chroma ME (Michael)
769 - 5 comparison functions for ME (Michael)
770 - B-frame encoding speedup (Michael)
771 - WMV2 codec (unfinished - Michael)
772 - user specified diamond size for EPZS (Michael)
773 - Playstation STR playback subsystem, still experimental (Mike and Michael)
774 - ASV2 codec (Michael)
775 - CLJR decoder (Alex)
777 .. And lots more new enhancements and fixes.
782 - completely new integer only MPEG audio layer 1/2/3 decoder rewritten
784 - Recoded DCT and motion vector search with gcc (no longer depends on nasm)
785 - fix quantization bug in AC3 encoder
786 - added PCM codecs and format. Corrected WAV/AVI/ASF PCM issues
787 - added prototype ffplay program
788 - added GOB header parsing on H.263/H.263+ decoder (Juanjo)
789 - bug fix on MCBPC tables of H.263 (Juanjo)
790 - bug fix on DC coefficients of H.263 (Juanjo)
791 - added Advanced Prediction Mode on H.263/H.263+ decoder (Juanjo)
792 - now we can decode H.263 streams found in QuickTime files (Juanjo)
793 - now we can decode H.263 streams found in VIVO v1 files(Juanjo)
794 - preliminary RTP "friendly" mode for H.263/H.263+ coding. (Juanjo)
795 - added GOB header for H.263/H.263+ coding on RTP mode (Juanjo)
796 - now H.263 picture size is returned on the first decoded frame (Juanjo)
797 - added first regression tests
798 - added MPEG-2 TS demuxer
799 - new demux API for libav
800 - more accurate and faster IDCT (Michael)
801 - faster and entropy-controlled motion search (Michael)
802 - two pass video encoding (Michael)
803 - new video rate control (Michael)
804 - added MSMPEG4V1, MSMPEGV2 and WMV1 support (Michael)
805 - great performance improvement of video encoders and decoders (Michael)
806 - new and faster bit readers and vlc parsers (Michael)
807 - high quality encoding mode: tries all macroblock/VLC types (Michael)
808 - added DV video decoder
809 - preliminary RTP/RTSP support in ffserver and libavformat
810 - H.263+ AIC decoding/encoding support (Juanjo)
811 - VCD MPEG-PS mode (Juanjo)
812 - PSNR stuff (Juanjo)
813 - simple stats output (Juanjo)
814 - 16-bit and 15-bit RGB/BGR/GBR support (Bisqwit)
819 - some header fixes (Zdenek Kabelac <kabi at informatics.muni.cz>)
820 - many MMX optimizations (Nick Kurshev <nickols_k at mail.ru>)
821 - added configure system (actually a small shell script)
822 - added MPEG audio layer 1/2/3 decoding using LGPL'ed mpglib by
823 Michael Hipp (temporary solution - waiting for integer only
825 - fixed VIDIOCSYNC interrupt
826 - added Intel H.263 decoding support ('I263' AVI fourCC)
827 - added Real Video 1.0 decoding (needs further testing)
828 - simplified image formats again. Added PGM format (=grey
829 pgm). Renamed old PGM to PGMYUV.
830 - fixed msmpeg4 slice issues (tell me if you still find problems)
831 - fixed OpenDivX bugs with newer versions (added VOL header decoding)
832 - added support for MPlayer interface
833 - added macroblock skip optimization
834 - added MJPEG decoder
835 - added mmx/mmxext IDCT from libmpeg2
836 - added pgmyuvpipe, ppm, and ppm_pipe formats (original patch by Celer
837 <celer at shell.scrypt.net>)
838 - added pixel format conversion layer (e.g. for MJPEG or PPM)
839 - added deinterlacing option
841 - MPEG-4 vol header fixes (Jonathan Marsden <snmjbm at pacbell.net>)
842 - ARM optimizations (Lionel Ulmer <lionel.ulmer at free.fr>).
843 - Windows porting of file converter
844 - added MJPEG raw format (input/ouput)
845 - added JPEG image format support (input/output)
850 - fixed some std header definitions (Bjorn Lindgren
851 <bjorn.e.lindgren at telia.com>).
852 - added MPEG demuxer (MPEG-1 and 2 compatible).
854 - added prototype RM demuxer
855 - added AC3 decoding (done with libac3 by Aaron Holtzman)
856 - added decoding codec parameter guessing (.e.g. for MPEG, because the
857 header does not include them)
858 - fixed header generation in MPEG-1, AVI and ASF muxer: wmplayer can now
859 play them (only tested video)
860 - fixed H.263 white bug
861 - fixed phase rounding in img resample filter
862 - add MMX code for polyphase img resample filter
863 - added CPU autodetection
864 - added generic title/author/copyright/comment string handling (ASF and RM
866 - added SWF demux to extract MP3 track (not usable yet because no MP3
868 - added fractional frame rate support
869 - codecs are no longer searched by read_header() (should fix ffserver
875 - BGR24 patch (initial patch by Jeroen Vreeken <pe1rxq at amsat.org>)
876 - fixed raw yuv output
877 - added motion rounding support in MPEG-4
878 - fixed motion bug rounding in MSMPEG4
879 - added B-frame handling in video core
880 - added full MPEG-1 decoding support
881 - added partial (frame only) MPEG-2 support
882 - changed the FOURCC code for H.263 to "U263" to be able to see the
883 +AVI/H.263 file with the UB Video H.263+ decoder. MPlayer works with
884 this +codec ;) (JuanJo).
885 - Halfpel motion estimation after MB type selection (JuanJo)
886 - added pgm and .Y.U.V output format
887 - suppressed 'img:' protocol. Simply use: /tmp/test%d.[pgm|Y] as input or
889 - added pgmpipe I/O format (original patch from Martin Aumueller
890 <lists at reserv.at>, but changed completely since we use a format
891 instead of a protocol)
896 - added H.263/MPEG-4/MSMPEG4 decoding support. MPEG-4 decoding support
897 (for OpenDivX) is almost complete: 8x8 MVs and rounding are
898 missing. MSMPEG4 support is complete.
899 - added prototype MPEG-1 decoder. Only I- and P-frames handled yet (it
900 can decode ffmpeg MPEGs :-)).
901 - added libavcodec API documentation (see apiexample.c).
902 - fixed image polyphase bug (the bottom of some images could be
904 - added support for non clipped motion vectors (decoding only)
905 and image sizes non-multiple of 16
906 - added support for AC prediction (decoding only)
907 - added file overwrite confirmation (can be disabled with -y)
908 - added custom size picture to H.263 using H.263+ (Juanjo)
913 - added MSMPEG4 (aka DivX) compatible encoder. Changed default codec
914 of AVI and ASF to DIV3.
915 - added -me option to set motion estimation method
916 (default=log). suppressed redundant -hq option.
917 - added options -acodec and -vcodec to force a given codec (useful for
920 - improved dct_quantize speed
921 - factorized some motion estimation code
926 - removing grab code from ffserver and moved it to ffmpeg. Added
927 multistream support to ffmpeg.
928 - added timeshifting support for live feeds (option ?date=xxx in the
930 - added high quality image resize code with polyphase filter (need
931 mmx/see optimization). Enable multiple image size support in ffserver.
932 - added multi live feed support in ffserver
933 - suppressed master feature from ffserver (it should be done with an
934 external program which opens the .ffm url and writes it to another
936 - added preliminary support for video stream parsing (WAV and AVI half
937 done). Added proper support for audio/video file conversion in
939 - added preliminary support for video file sending from ffserver
940 - redesigning I/O subsystem: now using URL based input and output
942 - added WAV format support
943 - added "tty user interface" to ffmpeg to stop grabbing gracefully
944 - added MMX/SSE optimizations to SAD (Sums of Absolutes Differences)
945 (Juan J. Sierralta P. a.k.a. "Juanjo" <juanjo at atmlab.utfsm.cl>)
946 - added MMX DCT from mpeg2_movie 1.5 (Juanjo)
947 - added new motion estimation algorithms, log and phods (Juanjo)
948 - changed directories: libav for format handling, libavcodec for
954 - added stereo in MPEG audio encoder
959 - added 'high quality' mode which use motion vectors. It can be used in
960 real time at low resolution.
961 - fixed rounding problems which caused quality problems at high
962 bitrates and large GOP size
965 version 0.3.2: small fixes
971 version 0.3.1: added avi/divx support
974 - added MPEG-4 codec compatible with OpenDivX. It is based on the H.263 codec
975 - added sound for flash format (not tested)
978 version 0.3: initial public release