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
24 - support ID3v2 tags in ASF files
25 - reference-counting for AVFrame and AVPacket data
26 - avconv now fails when input options are used for output file
28 - avconv options -filter_script and -filter_complex_script, which allow a
29 filtergraph description to be read from a file
30 - uniform options syntax across all filters
33 - asetpts filter (same as setpts, but for audio)
34 - trim and atrim filters
35 - avconv -t and -ss (output-only) options are now sample-accurate when
37 - Matroska muxer can now put the index at the beginning of the file.
38 - avconv -deinterlace option removed, the yadif filter should be used instead
39 - Apple Intermediate Codec decoder
40 - Escape 130 video decoder
41 - support for slice multithreading in libavfilter
42 - VC-1 interlaced B-frame support
43 - support for WavPack muxing (raw and in Matroska)
45 - WavPack encoding through libwavpack
46 - Added the -n parameter to avconv
48 - when transcoding with avconv (i.e. not streamcopying), -ss is now accurate
49 even when used as an input option. Previous behavior can be restored with
50 the -noaccurate_seek option.
51 - avconv -t option can now be used for inputs, to limit the duration of
52 data read from an input file
53 - Voxware MetaSound decoder
55 - Error Resilient AAC syntax (ER AAC LC) decoding
56 - Low Delay AAC (ER AAC LD) decoding
57 - mux chapters in ASF files
58 - Opus in Ogg demuxing
59 - Enhanced Low Delay AAC (ER AAC ELD) decoding (no LD SBR support)
61 - HNM version 4 demuxer and video decoder
63 - raw HEVC, HEVC in MOV/MP4, HEVC in Matroska, HEVC in MPEG-TS demuxing
64 - remove avplay -vismv option, which has not worked for a long time
66 - setsar/setdar filters now support variables in ratio expressions
67 - dar variable in the scale filter now returns the actual DAR (i.e. a * sar)
69 - support for decoding through VDPAU in avconv (the -hwaccel option)
70 - remove mp3_header_(de)compress bitstream filters
71 - stereoscopic 3d metadata handling
72 - png standalone parser
73 - WebP encoding via libwebp
76 - Mirillis FIC video decoder
78 - compand audio filter
82 - av_basename and av_dirname
83 - adobe and limelight publisher authentication in RTMP
84 - VDPAU hardware acceleration through normal hwaccel
89 - ashowinfo audio filter
90 - 24-bit FLAC encoding
92 - deprecated the avconv -vol option. the volume filter is to be used instead.
93 - multi-channel ALAC encoding up to 7.1
94 - TAK demuxer, parser, and decoder
95 - adaptive frame-level multithreading for H.264
99 - metadata (INFO tag) support in WAV muxer
100 - support for building DLLs using MSVC
101 - remove avserver daemon mode
102 - support building on the Plan 9 operating system
103 - ffv1: support version 1.3
108 - XWD encoder and decoder
109 - Support for fragmentation in the mov/mp4 muxer
110 - ISMV (Smooth Streaming) muxer
111 - CDXL demuxer and decoder
112 - Apple ProRes encoder
113 - Sun Rasterfile Encoder
115 - ID3v2 attached pictures reading and writing
116 - WMA Lossless decoder
118 - RealAudio Lossless decoder
120 - drop support for avconv without libavfilter
121 - add libavresample audio conversion library
122 - audio filters support in libavfilter and avconv
126 - avprobe output is now standard INI or JSON. The old format can still
127 be used with -of old.
128 - Indeo Audio decoder
129 - channelsplit audio filter
130 - RTMPT protocol support
131 - iLBC encoding/decoding via libilbc
132 - Microsoft Screen 1 decoder
134 - audio channel mapping filter
135 - Microsoft ATC Screen decoder
137 - TechSmith Screen Codec 2 decoder
138 - AAC encoding via libfdk-aac
139 - Microsoft Expression Encoder Screen decoder
140 - RTMPS protocol support
141 - RTMPTS protocol support
142 - JPEG 2000 encoding support through OpenJPEG
143 - G.723.1 demuxer and decoder
144 - RTMPE protocol support
145 - RTMPTE protocol support
146 - Canopus Lossless Codec decoder
147 - avconv -shortest option is now per-output file,
148 -pass and -passlogfile are now per-output stream
150 - Microsoft Screen 2 decoder
151 - RTP depacketization of JPEG
152 - Smooth Streaming live segmenter muxer
153 - RTP packetization of JPEG
154 - Opus decoder and encoder using libopus
155 - remove -same_quant, it hasn't worked for years
156 - support for building with MSVC
167 - Automatic thread count based on detection number of (available) CPU cores
168 - Deprecate libpostproc. If desired, the switch --enable-postproc will
169 enable it but it may be removed in a later Libav release.
170 - rv34: frame-level multi-threading
171 - optimized iMDCT transform on x86 using SSE for for mpegaudiodec
177 - Flash Screen Video 2 decoder
178 - ffplay/ffprobe/ffserver renamed to avplay/avprobe/avserver
179 - ffmpeg deprecated, added avconv, which is almost the same for now, except
180 for a few incompatible changes in the options, which will hopefully make them
181 easier to use. The changes are:
182 * The options placement is now strictly enforced! While in theory the
183 options for ffmpeg should be given in [input options] -i INPUT [output
184 options] OUTPUT order, in practice it was possible to give output options
185 before the -i and it mostly worked. Except when it didn't - the behavior was
186 a bit inconsistent. In avconv, it is not possible to mix input and output
187 options. All non-global options are reset after an input or output filename.
188 * All per-file options are now truly per-file - they apply only to the next
189 input or output file and specifying different values for different files
190 will now work properly (notably -ss and -t options).
191 * All per-stream options are now truly per-stream - it is possible to
192 specify which stream(s) should a given option apply to. See the Stream
193 specifiers section in the avconv manual for details.
194 * In ffmpeg some options (like -newvideo/-newaudio/...) are irregular in the
195 sense that they're specified after the output filename instead of before,
196 like all other options. In avconv this irregularity is removed, all options
197 apply to the next input or output file.
198 * -newvideo/-newaudio/-newsubtitle options were removed. Not only were they
199 irregular and highly confusing, they were also redundant. In avconv the -map
200 option will create new streams in the output file and map input streams to
201 them. E.g. avconv -i INPUT -map 0 OUTPUT will create an output stream for
202 each stream in the first input file.
203 * The -map option now has slightly different and more powerful syntax:
204 + Colons (':') are used to separate file index/stream type/stream index
205 instead of dots. Comma (',') is used to separate the sync stream instead
206 of colon.. This is done for consistency with other options.
207 + It's possible to specify stream type. E.g. -map 0:a:2 creates an
208 output stream from the third input audio stream.
209 + Omitting the stream index now maps all the streams of the given type,
210 not just the first. E.g. -map 0:s creates output streams for all the
211 subtitle streams in the first input file.
212 + Since -map can now match multiple streams, negative mappings were
213 introduced. Negative mappings disable some streams from an already
214 defined map. E.g. '-map 0 -map -0:a:1' means 'create output streams for
215 all the stream in the first input file, except for the second audio
217 * There is a new option -c (or -codec) for choosing the decoder/encoder to
218 use, which allows to precisely specify target stream(s) consistently with
219 other options. E.g. -c:v lib264 sets the codec for all video streams, -c:a:0
220 libvorbis sets the codec for the first audio stream and -c copy copies all
221 the streams without reencoding. Old -vcodec/-acodec/-scodec options are now
223 * It is now possible to precisely specify which stream should an AVOption
224 apply to. E.g. -b:v:0 2M sets the bitrate for the first video stream, while
225 -b:a 128k sets the bitrate for all audio streams. Note that the old -ab 128k
226 syntax is deprecated and will stop working soon.
227 * -map_chapters now takes only an input file index and applies to the next
228 output file. This is consistent with how all the other options work.
229 * -map_metadata now takes only an input metadata specifier and applies to
230 the next output file. Output metadata specifier is now part of the option
231 name, similarly to the AVOptions/map/codec feature above.
232 * -metadata can now be used to set metadata on streams and chapters, e.g.
233 -metadata:s:1 language=eng sets the language of the first stream to 'eng'.
234 This made -vlang/-alang/-slang options redundant, so they were removed.
235 * -qscale option now uses stream specifiers and applies to all streams, not
236 just video. I.e. plain -qscale number would now apply to all streams. To get
237 the old behavior, use -qscale:v. Also there is now a shortcut -q for -qscale
238 and -aq is now an alias for -q:a.
239 * -vbsf/-absf/-sbsf options were removed and replaced by a -bsf option which
240 uses stream specifiers. Use -bsf:v/a/s instead of the old options.
241 * -itsscale option now uses stream specifiers, so its argument is only the
243 * -intra option was removed, use -g 0 for the same effect.
244 * -psnr option was removed, use -flags +psnr for the same effect.
245 * -vf option is now an alias to the new -filter option, which uses stream specifiers.
246 * -vframes/-aframes/-dframes options are now aliases to the new -frames option.
247 * -vtag/-atag/-stag options are now aliases to the new -tag option.
249 - Windows Media Image decoder
253 - libcdio-paranoia input device for audio CD grabbing
255 - Apple ProRes decoder
256 - CELT in Ogg demuxing
257 - VC-1 interlaced decoding
258 - lut, lutrgb, and lutyuv filters
261 - Speex encoding via libspeex
262 - 4:2:2 H.264 decoding support
263 - 4:2:2 and 4:4:4 H.264 encoding with libx264
264 - Pulseaudio input device
265 - replacement Indeo 3 decoder
266 - TLS/SSL and HTTPS protocol support
267 - AVOptions API rewritten and documented
268 - most of CODEC_FLAG2_*, some CODEC_FLAG_* and many codec-specific fields in
269 AVCodecContext deprecated. Codec private options should be used instead.
270 - Properly working defaults in libx264 wrapper, support for native presets.
271 - Encrypted OMA files support
272 - Discworld II BMV decoding support
274 - OS X Video Decoder Acceleration (VDA) support
275 - CRI ADX audio format muxer and demuxer
276 - Playstation Portable PMP format demuxer
277 - PCM format support in OMA demuxer
279 - Dxtory capture format decoder
280 - v410 QuickTime uncompressed 4:4:4 10-bit encoder and decoder
282 - Simple segmenting muxer
289 - E-AC-3 audio encoder
290 - ac3enc: add channel coupling support
291 - floating-point sample format support for (E-)AC-3, DCA, AAC, Vorbis decoders
292 - H.264/MPEG frame-level multithreading
293 - av_metadata_* functions renamed to av_dict_* and moved to libavutil
294 - 4:4:4 H.264 decoding support
295 - 10-bit H.264 optimizations for x86
296 - bump libswscale for recently reported ABI break
301 - VP8 frame-level multithreading
302 - NEON optimizations for VP8
303 - removed a lot of deprecated API cruft
304 - FFT and IMDCT optimizations for AVX (Sandy Bridge) processors
306 - SMPTE 302M AES3 audio decoder
307 - ffmpeg no longer quits after the 'q' key is pressed; use 'ctrl+c' instead
308 - 9bit and 10bit per sample support in the H.264 decoder
313 - WebM support in Matroska de/muxer
314 - low overhead Ogg muxing
316 - VP8 de/encoding via libvpx
317 - Demuxer for On2's IVF format
318 - Pictor/PC Paint decoder
320 - libfaad2 wrapper removed
321 - DTS-ES extension (XCh) decoding support
323 - RTSP tunneling over HTTP
324 - RTP depacketization of SVQ3
325 - -strict inofficial replaced by -strict unofficial
326 - ffplay -exitonkeydown and -exitonmousedown options added
327 - native GSM / GSM MS decoder
328 - RTP depacketization of QDM2
329 - ANSI/ASCII art playback system
330 - Lego Mindstorms RSO de/muxer
331 - SubRip subtitle file muxer and demuxer
332 - Chinese AVS encoding via libxavs
333 - ffprobe -show_packets option added
334 - RTP packetization of Theora and Vorbis
335 - RTP depacketization of MP4A-LATM
336 - RTP packetization and depacketization of VP8
338 - Apple HTTP Live Streaming demuxer
341 - G.722 ADPCM audio encoder/decoder
344 - frei0r wrapper filter
345 - change crop filter syntax to width:height:x:y
346 - make the crop filter accept parametric expressions
347 - make ffprobe accept AVFormatContext options
350 - Demuxer for Leitch/Harris' VR native stream format (LXF)
351 - RTP depacketization of the X-QT QuickTime format
352 - SAP (Session Announcement Protocol, RFC 2974) muxer and demuxer
354 - ffmpeg -crop* options removed
355 - transpose filter added
356 - ffmpeg -force_key_frames option added
357 - demuxer for receiving raw rtp:// URLs without an SDP description
358 - single stream LATM/LOAS decoder
359 - setpts filter added
360 - Win64 support for optimized x86 assembly functions
361 - MJPEG/AVI1 to JPEG/JFIF bitstream filter
362 - ASS subtitle encoder and decoder
363 - IEC 61937 encapsulation for E-AC-3, TrueHD, DTS-HD (for HDMI passthrough)
364 - overlay filter added
365 - rename aspect filter to setdar, and pixelaspect to setsar
367 - Mobotix .mxg demuxer
368 - frei0r source added
369 - hqdn3d filter added
370 - RTP depacketization of QCELP
372 - gradfun filter added
374 - replace the ocv_smooth filter with a more generic ocv filter
375 - Windows Televison (WTV) demuxer
376 - FFmpeg metadata format muxer and demuxer
377 - SubRip (srt) subtitle decoder
378 - floating-point AC-3 encoder added
380 - ffmpeg -copytb option added
382 - Wing Commander IV movies decoder added
384 - Bink version 'b' audio and video decoder
385 - Bitmap Brothers JV playback system
386 - Apple HTTP Live Streaming protocol handler
387 - sndio support for playback and record
388 - Linux framebuffer input device added
389 - Chronomaster DFA decoder
390 - Mobotix MxPEG decoder
391 - AAC encoding via libvo-aacenc
392 - AMR-WB encoding via libvo-amrwbenc
394 - fieldorder video filter added
399 - PB-frame decoding for H.263
400 - deprecated vhook subsystem removed
401 - deprecated old scaler removed
403 - Alpha channel scaler
405 - RTP packetization of H.263
406 - RTP packetization of AMR
407 - RTP depacketization of Vorbis
408 - CorePNG decoding support
409 - Cook multichannel decoding support
410 - introduced avlanguage helpers in libavformat
411 - 8088flex TMV demuxer and decoder
412 - per-stream language-tags extraction in asfdec
413 - V210 decoder and encoder
414 - remaining GPL parts in AC-3 decoder converted to LGPL
416 - SoX native format muxer and demuxer
417 - AMR-NB decoding/encoding, AMR-WB decoding via OpenCORE libraries
419 - Electronic Arts Madcow decoder
420 - DivX (XSUB) subtitle encoder
421 - nonfree libamr support for AMR-NB/WB decoding/encoding removed
422 - experimental AAC encoder
423 - RTP depacketization of ASF and RTSP from WMS servers
424 - RTMP support in libavformat
425 - noX handling for OPT_BOOL X options
427 - IEC-61937 compatible Muxer
429 - Bluray (PGS) subtitle decoder
430 - LPCM support in MPEG-TS (HDMV RID as found on Blu-ray disks)
432 - Core Audio Format demuxer
434 - MD STUDIO audio demuxer
435 - RF64 support in WAV demuxer
436 - MPEG-4 Audio Lossless Coding (ALS) decoder
437 - -formats option split into -formats, -codecs, -bsfs, and -protocols
439 - CDG demuxer and decoder
441 - Auravision Aura 1 and 2 decoders
442 - Deluxe Paint Animation playback system
444 - Adobe Filmstrip muxer and demuxer
445 - RTP depacketization of H.263
446 - Bink demuxer and audio/video decoders
447 - enable symbol versioning by default for linkers that support it
448 - IFF PBM/ILBM bitmap decoder
451 - RTP depacketization of AMR
457 - Kega Game Video (KGV1) decoder
458 - VorbisComment writing for FLAC, Ogg FLAC and Ogg Speex files
459 - RTP depacketization of Theora
460 - HTTP Digest authentication
461 - RTMP/RTMPT/RTMPS/RTMPE/RTMPTE protocol support via librtmp
462 - Psygnosis YOP demuxer and video decoder
463 - spectral extension support in the E-AC-3 decoder
464 - unsharp video filter
465 - RTP hinting in the mov/3gp/mp4 muxer
466 - Dirac in Ogg demuxing
467 - seek to keyframes in Ogg
468 - 4:2:2 and 4:4:4 Theora decoding
469 - 35% faster VP3/Theora decoding
470 - faster AAC decoding
471 - faster H.264 decoding
472 - RealAudio 1.0 (14.4K) encoder
477 - DV50 AKA DVCPRO50 encoder, decoder, muxer and demuxer
478 - TechSmith Camtasia (TSCC) video decoder
479 - IBM Ultimotion (ULTI) video decoder
480 - Sierra Online audio file demuxer and decoder
481 - Apple QuickDraw (qdrw) video decoder
482 - Creative ADPCM audio decoder (16 bits as well as 8 bits schemes)
483 - Electronic Arts Multimedia (WVE/UV2/etc.) file demuxer
484 - Miro VideoXL (VIXL) video decoder
485 - H.261 video encoder
487 - Nullsoft Video (NSV) file demuxer
488 - Shorten audio decoder
490 - Apple Lossless Audio Codec (ALAC) decoder
491 - Winnov WNV1 video decoder
492 - Autodesk Animator Studio Codec (AASC) decoder
493 - Indeo 2 video decoder
494 - Fraps FPS1 video decoder
495 - Snow video encoder/decoder
496 - Sonic audio encoder/decoder
497 - Vorbis audio decoder
498 - Macromedia ADPCM decoder
499 - Duck TrueMotion 2 video decoder
500 - support for decoding FLX and DTA extensions in FLIC files
501 - H.264 custom quantization matrices support
502 - ffserver fixed, it should now be usable again
504 - Real Cooker audio decoder
505 - TrueSpeech audio decoder
506 - WMA2 audio decoder fixed, now all files should play correctly
507 - RealAudio 14.4 and 28.8 decoders fixed
509 - build system improvements
510 - tabs and trailing whitespace removed from the codebase
511 - CamStudio video decoder
512 - AIFF/AIFF-C audio format, encoding and decoding
513 - ADTS AAC file reading and writing
514 - Creative VOC file reading and writing
515 - American Laser Games multimedia (*.mm) playback system
516 - Zip Motion Blocks Video decoder
517 - improved Theora/VP3 decoder
518 - True Audio (TTA) decoder
519 - AVS demuxer and video decoder
521 - Smacker demuxer and decoder
522 - NuppelVideo/MythTV demuxer and RTjpeg decoder
524 - MPEG-2 intra VLC support
525 - MPEG-2 4:2:2 encoder
526 - Flash Screen Video decoder
528 - Chinese AVS decoder
531 - VC-1/WMV3/WMV9 video decoder
534 - VMware video decoder
537 - WavPack lossless audio decoder
538 - Targa (.TGA) picture decoder
539 - Vorbis audio encoder
540 - Delphine Software .cin demuxer/audio and video decoder
541 - Tiertex .seq demuxer/video decoder
543 - TIFF picture encoder and decoder
544 - GIF picture decoder
545 - Intel Music Coder decoder
546 - Zip Motion Blocks Video encoder
548 - Flash Screen Video encoder
549 - Theora encoding via libtheora
552 - GSM-MS encoder and decoder
554 - DXA demuxer and decoder
556 - Gamecube movie (.THP) playback system
557 - Blackfin optimizations
558 - Interplay C93 demuxer and video decoder
559 - Bethsoft VID demuxer and video decoder
562 - V.Flash PTX decoder
563 - RoQ muxer, RoQ audio encoder
564 - Renderware TXD demuxer and decoder
565 - extern C declarations for C++ removed from headers
566 - sws_flags command line option
570 - OS/2 support removed and restored again
573 - additional SPARC (VIS) optimizations
575 - slice-based parallel H.264 decoding
576 - Monkey's Audio demuxer and decoder
577 - AMV audio and video decoder
579 - H.264 PAFF decoding
580 - Nellymoser ASAO decoder
581 - Beam Software SIFF demuxer and decoder
582 - libvorbis Vorbis decoding removed in favor of native decoder
583 - IntraX8 (J-Frame) subdecoder for WMV2 and VC-1
584 - Ogg (Theora, Vorbis and FLAC) muxer
585 - The "device" muxers and demuxers are now in a new libavdevice library
586 - PC Paintbrush PCX decoder
587 - Sun Rasterfile decoder
588 - TechnoTrend PVA demuxer
589 - Linux Media Labs MPEG-4 (LMLM4) demuxer
590 - AVM2 (Flash 9) SWF muxer
591 - QT variant of IMA ADPCM encoder
593 - iPod/iPhone compatible mp4 muxer
595 - MSN TCP Webcam stream demuxer
596 - RL2 demuxer / decoder
599 - non-recursive Makefiles
601 - MAXIS EA XA (.xa) demuxer / decoder
605 - Electronic Arts CMV decoder
606 - Motion Pixels Video decoder
607 - Motion Pixels MVI demuxer
608 - removed animated GIF decoder/demuxer
609 - D-Cinema audio muxer
610 - Electronic Arts TGV decoder
611 - Apple Lossless Audio Codec (ALAC) encoder
613 - floating point PCM encoder/decoder
615 - DV100 AKA DVCPRO HD decoder and demuxer
616 - E-AC-3 support added to AC-3 decoder
617 - Nellymoser ASAO encoder
618 - ASS and SSA demuxer and muxer
619 - liba52 wrapper removed
620 - SVQ3 watermark decoding support
621 - Speex decoding via libspeex
622 - Electronic Arts TGQ decoder
624 - QCELP / PureVoice decoder
626 - hybrid WavPack support
627 - R3D REDCODE demuxer
628 - ALSA support for playback and record
629 - Electronic Arts TQI decoder
630 - OpenJPEG based JPEG 2000 decoder
631 - NC (NC4600) camera file demuxer
632 - Gopher client support
634 - generic metadata API
639 - DV encoder, DV muxer
640 - Microsoft RLE video decoder
641 - Microsoft Video-1 decoder
642 - Apple Animation (RLE) decoder
643 - Apple Graphics (SMC) decoder
644 - Apple Video (RPZA) decoder
646 - Sega FILM (CPK) file demuxer
647 - Westwood multimedia support (VQA & AUD files)
648 - Id Quake II CIN playback support
650 - FLIC playback support
651 - RealVideo 2.0 (RV20) decoder
652 - Duck TrueMotion v1 (DUCK) video decoder
653 - Sierra VMD demuxer and video decoder
654 - MSZH and ZLIB decoder support
658 - rate distortion optimal cbp support
659 - rate distorted optimal ac prediction for MPEG-4
660 - rate distorted optimal lambda->qp support
661 - AAC encoding with libfaac
662 - Sunplus JPEG codec (SP5X) support
663 - use Lagrange multipler instead of QP for ratecontrol
664 - Theora/VP3 decoding support
665 - XA and ADX ADPCM codecs
666 - export MPEG-2 active display area / pan scan
667 - Add support for configuring with IBM XLC
668 - floating point AAN DCT
669 - initial support for zygo video (not complete)
671 - new audio/video parser API
673 - av_read_frame() and av_seek_frame() support
674 - missing last frame fixes
675 - seek by mouse in ffplay
676 - noise reduction of DCT coefficients
677 - H.263 OBMC & 4MV support
678 - H.263 alternative inter vlc support
680 - H.263 slice structured mode
681 - interlaced DCT support for MPEG-2 encoding
682 - stuffing to stay above min_bitrate
683 - MB type & QP visualization
684 - frame stepping for ffplay
685 - interlaced motion estimation
686 - alternate scantable support
687 - SVCD scan offset support
690 - quantizer noise shaping
691 - G.726 ADPCM audio codec
693 - multithreaded/SMP motion estimation
694 - multithreaded/SMP encoding for MPEG-1/MPEG-2/MPEG-4/H.263
695 - multithreaded/SMP decoding for MPEG-2
697 - Metrowerks CodeWarrior suppport
698 - H.263+ custom pcf support
699 - nicer output for 'ffmpeg -formats'
701 - SGI image format, encoding and decoding
702 - H.264 loop filter support
703 - H.264 CABAC support
704 - nicer looking arrows for the motion vector visualization
705 - improved VCD support
706 - audio timestamp drift compensation
707 - MPEG-2 YUV 422/444 support
708 - polyphase kaiser windowed sinc and blackman nuttall windowed sinc audio resample
709 - better image scaling
711 - correctly interleave packets during encoding
712 - VIS optimized motion compensation
713 - intra_dc_precision>0 encoding support
714 - support reuse of motion vectors/MB types/field select values of the source video
715 - more accurate deblock filter
717 - many optimizations and bugfixes
718 - FunCom ISS audio file demuxer and according ADPCM decoding
723 - MPEG-2 video encoding (Michael)
724 - Id RoQ playback subsystem (Mike Melanson and Tim Ferguson)
725 - Wing Commander III Movie (.mve) file playback subsystem (Mike Melanson
727 - Xan DPCM audio decoder (Mario Brito)
728 - Interplay MVE playback subsystem (Mike Melanson)
729 - Duck DK3 and DK4 ADPCM audio decoders (Mike Melanson)
734 - RealAudio 1.0 (14_4) and 2.0 (28_8) native decoders. Author unknown, code from mplayerhq
735 (originally from public domain player for Amiga at http://www.honeypot.net/audio)
736 - current version now also compiles with older GCC (Fabrice)
737 - 4X multimedia playback system including 4xm file demuxer (Mike
738 Melanson), and 4X video and audio codecs (Michael)
739 - Creative YUV (CYUV) decoder (Mike Melanson)
740 - FFV1 codec (our very simple lossless intra only codec, compresses much better
741 than HuffYUV) (Michael)
742 - ASV1 (Asus), H.264, Intel indeo3 codecs have been added (various)
743 - tiny PNG encoder and decoder, tiny GIF decoder, PAM decoder (PPM with
744 alpha support), JPEG YUV colorspace support. (Fabrice Bellard)
745 - ffplay has been replaced with a newer version which uses SDL (optionally)
746 for multiplatform support (Fabrice)
747 - Sorenson Version 3 codec (SVQ3) support has been added (decoding only) - donated
749 - AMR format has been added (Johannes Carlsson)
750 - 3GP support has been added (Johannes Carlsson)
751 - VP3 codec has been added (Mike Melanson)
752 - more MPEG-1/2 fixes
753 - better multiplatform support, MS Visual Studio fixes (various)
754 - AltiVec optimizations (Magnus Damn and others)
755 - SH4 processor support has been added (BERO)
756 - new public interfaces (avcodec_get_pix_fmt) (Roman Shaposhnick)
757 - VOB streaming support (Brian Foley)
758 - better MP3 autodetection (Andriy Rysin)
759 - qpel encoding (Michael)
760 - 4mv+b frames encoding finally fixed (Michael)
761 - chroma ME (Michael)
762 - 5 comparison functions for ME (Michael)
763 - B-frame encoding speedup (Michael)
764 - WMV2 codec (unfinished - Michael)
765 - user specified diamond size for EPZS (Michael)
766 - Playstation STR playback subsystem, still experimental (Mike and Michael)
767 - ASV2 codec (Michael)
768 - CLJR decoder (Alex)
770 .. And lots more new enhancements and fixes.
775 - completely new integer only MPEG audio layer 1/2/3 decoder rewritten
777 - Recoded DCT and motion vector search with gcc (no longer depends on nasm)
778 - fix quantization bug in AC3 encoder
779 - added PCM codecs and format. Corrected WAV/AVI/ASF PCM issues
780 - added prototype ffplay program
781 - added GOB header parsing on H.263/H.263+ decoder (Juanjo)
782 - bug fix on MCBPC tables of H.263 (Juanjo)
783 - bug fix on DC coefficients of H.263 (Juanjo)
784 - added Advanced Prediction Mode on H.263/H.263+ decoder (Juanjo)
785 - now we can decode H.263 streams found in QuickTime files (Juanjo)
786 - now we can decode H.263 streams found in VIVO v1 files(Juanjo)
787 - preliminary RTP "friendly" mode for H.263/H.263+ coding. (Juanjo)
788 - added GOB header for H.263/H.263+ coding on RTP mode (Juanjo)
789 - now H.263 picture size is returned on the first decoded frame (Juanjo)
790 - added first regression tests
791 - added MPEG-2 TS demuxer
792 - new demux API for libav
793 - more accurate and faster IDCT (Michael)
794 - faster and entropy-controlled motion search (Michael)
795 - two pass video encoding (Michael)
796 - new video rate control (Michael)
797 - added MSMPEG4V1, MSMPEGV2 and WMV1 support (Michael)
798 - great performance improvement of video encoders and decoders (Michael)
799 - new and faster bit readers and vlc parsers (Michael)
800 - high quality encoding mode: tries all macroblock/VLC types (Michael)
801 - added DV video decoder
802 - preliminary RTP/RTSP support in ffserver and libavformat
803 - H.263+ AIC decoding/encoding support (Juanjo)
804 - VCD MPEG-PS mode (Juanjo)
805 - PSNR stuff (Juanjo)
806 - simple stats output (Juanjo)
807 - 16-bit and 15-bit RGB/BGR/GBR support (Bisqwit)
812 - some header fixes (Zdenek Kabelac <kabi at informatics.muni.cz>)
813 - many MMX optimizations (Nick Kurshev <nickols_k at mail.ru>)
814 - added configure system (actually a small shell script)
815 - added MPEG audio layer 1/2/3 decoding using LGPL'ed mpglib by
816 Michael Hipp (temporary solution - waiting for integer only
818 - fixed VIDIOCSYNC interrupt
819 - added Intel H.263 decoding support ('I263' AVI fourCC)
820 - added Real Video 1.0 decoding (needs further testing)
821 - simplified image formats again. Added PGM format (=grey
822 pgm). Renamed old PGM to PGMYUV.
823 - fixed msmpeg4 slice issues (tell me if you still find problems)
824 - fixed OpenDivX bugs with newer versions (added VOL header decoding)
825 - added support for MPlayer interface
826 - added macroblock skip optimization
827 - added MJPEG decoder
828 - added mmx/mmxext IDCT from libmpeg2
829 - added pgmyuvpipe, ppm, and ppm_pipe formats (original patch by Celer
830 <celer at shell.scrypt.net>)
831 - added pixel format conversion layer (e.g. for MJPEG or PPM)
832 - added deinterlacing option
834 - MPEG-4 vol header fixes (Jonathan Marsden <snmjbm at pacbell.net>)
835 - ARM optimizations (Lionel Ulmer <lionel.ulmer at free.fr>).
836 - Windows porting of file converter
837 - added MJPEG raw format (input/ouput)
838 - added JPEG image format support (input/output)
843 - fixed some std header definitions (Bjorn Lindgren
844 <bjorn.e.lindgren at telia.com>).
845 - added MPEG demuxer (MPEG-1 and 2 compatible).
847 - added prototype RM demuxer
848 - added AC3 decoding (done with libac3 by Aaron Holtzman)
849 - added decoding codec parameter guessing (.e.g. for MPEG, because the
850 header does not include them)
851 - fixed header generation in MPEG-1, AVI and ASF muxer: wmplayer can now
852 play them (only tested video)
853 - fixed H.263 white bug
854 - fixed phase rounding in img resample filter
855 - add MMX code for polyphase img resample filter
856 - added CPU autodetection
857 - added generic title/author/copyright/comment string handling (ASF and RM
859 - added SWF demux to extract MP3 track (not usable yet because no MP3
861 - added fractional frame rate support
862 - codecs are no longer searched by read_header() (should fix ffserver
868 - BGR24 patch (initial patch by Jeroen Vreeken <pe1rxq at amsat.org>)
869 - fixed raw yuv output
870 - added motion rounding support in MPEG-4
871 - fixed motion bug rounding in MSMPEG4
872 - added B-frame handling in video core
873 - added full MPEG-1 decoding support
874 - added partial (frame only) MPEG-2 support
875 - changed the FOURCC code for H.263 to "U263" to be able to see the
876 +AVI/H.263 file with the UB Video H.263+ decoder. MPlayer works with
877 this +codec ;) (JuanJo).
878 - Halfpel motion estimation after MB type selection (JuanJo)
879 - added pgm and .Y.U.V output format
880 - suppressed 'img:' protocol. Simply use: /tmp/test%d.[pgm|Y] as input or
882 - added pgmpipe I/O format (original patch from Martin Aumueller
883 <lists at reserv.at>, but changed completely since we use a format
884 instead of a protocol)
889 - added H.263/MPEG-4/MSMPEG4 decoding support. MPEG-4 decoding support
890 (for OpenDivX) is almost complete: 8x8 MVs and rounding are
891 missing. MSMPEG4 support is complete.
892 - added prototype MPEG-1 decoder. Only I- and P-frames handled yet (it
893 can decode ffmpeg MPEGs :-)).
894 - added libavcodec API documentation (see apiexample.c).
895 - fixed image polyphase bug (the bottom of some images could be
897 - added support for non clipped motion vectors (decoding only)
898 and image sizes non-multiple of 16
899 - added support for AC prediction (decoding only)
900 - added file overwrite confirmation (can be disabled with -y)
901 - added custom size picture to H.263 using H.263+ (Juanjo)
906 - added MSMPEG4 (aka DivX) compatible encoder. Changed default codec
907 of AVI and ASF to DIV3.
908 - added -me option to set motion estimation method
909 (default=log). suppressed redundant -hq option.
910 - added options -acodec and -vcodec to force a given codec (useful for
913 - improved dct_quantize speed
914 - factorized some motion estimation code
919 - removing grab code from ffserver and moved it to ffmpeg. Added
920 multistream support to ffmpeg.
921 - added timeshifting support for live feeds (option ?date=xxx in the
923 - added high quality image resize code with polyphase filter (need
924 mmx/see optimization). Enable multiple image size support in ffserver.
925 - added multi live feed support in ffserver
926 - suppressed master feature from ffserver (it should be done with an
927 external program which opens the .ffm url and writes it to another
929 - added preliminary support for video stream parsing (WAV and AVI half
930 done). Added proper support for audio/video file conversion in
932 - added preliminary support for video file sending from ffserver
933 - redesigning I/O subsystem: now using URL based input and output
935 - added WAV format support
936 - added "tty user interface" to ffmpeg to stop grabbing gracefully
937 - added MMX/SSE optimizations to SAD (Sums of Absolutes Differences)
938 (Juan J. Sierralta P. a.k.a. "Juanjo" <juanjo at atmlab.utfsm.cl>)
939 - added MMX DCT from mpeg2_movie 1.5 (Juanjo)
940 - added new motion estimation algorithms, log and phods (Juanjo)
941 - changed directories: libav for format handling, libavcodec for
947 - added stereo in MPEG audio encoder
952 - added 'high quality' mode which use motion vectors. It can be used in
953 real time at low resolution.
954 - fixed rounding problems which caused quality problems at high
955 bitrates and large GOP size
958 version 0.3.2: small fixes
964 version 0.3.1: added avi/divx support
967 - added MPEG-4 codec compatible with OpenDivX. It is based on the H.263 codec
968 - added sound for flash format (not tested)
971 version 0.3: initial public release