1 Entries are sorted chronologically from oldest to youngest within each release,
2 releases are sorted from youngest to oldest.
6 - support ID3v2 tags in ASF files
7 - reference-counting for AVFrame and AVPacket data
8 - avconv now fails when input options are used for output file
10 - avconv options -filter_script and -filter_complex_script, which allow a
11 filtergraph description to be read from a file
12 - uniform options syntax across all filters
15 - asetpts filter (same as setpts, but for audio)
16 - trim and atrim filters
17 - avconv -t and -ss (output-only) options are now sample-accurate when
19 - Matroska muxer can now put the index at the beginning of the file.
20 - avconv -deinterlace option removed, the yadif filter should be used instead
21 - Apple Intermediate Codec decoder
22 - Escape 130 video decoder
23 - support for slice multithreading in libavfilter
24 - VC-1 interlaced B-frame support
25 - support for WavPack muxing (raw and in Matroska)
27 - WavPack encoding through libwavpack
28 - Added the -n parameter to avconv
30 - when transcoding with avconv (i.e. not streamcopying), -ss is now accurate
31 even when used as an input option. Previous behavior can be restored with
32 the -noaccurate_seek option.
33 - avconv -t option can now be used for inputs, to limit the duration of
34 data read from an input file
35 - Voxware MetaSound decoder
37 - Error Resilient AAC syntax (ER AAC LC) decoding
38 - Low Delay AAC (ER AAC LD) decoding
39 - mux chapters in ASF files
40 - Opus in Ogg demuxing
41 - Enhanced Low Delay AAC (ER AAC ELD) decoding (no LD SBR support)
43 - HNM version 4 demuxer and video decoder
45 - raw HEVC, HEVC in MOV/MP4, HEVC in Matroska, HEVC in MPEG-TS demuxing
46 - remove avplay -vismv option, which has not worked for a long time
48 - setsar/setdar filters now support variables in ratio expressions
49 - dar variable in the scale filter now returns the actual DAR (i.e. a * sar)
51 - support for decoding through VDPAU in avconv (the -hwaccel option)
52 - remove mp3_header_(de)compress bitstream filters
53 - stereoscopic 3d metadata handling
54 - png standalone parser
55 - WebP encoding via libwebp
59 - av_basename and av_dirname
60 - adobe and limelight publisher authentication in RTMP
61 - VDPAU hardware acceleration through normal hwaccel
66 - ashowinfo audio filter
67 - 24-bit FLAC encoding
69 - deprecated the avconv -vol option. the volume filter is to be used instead.
70 - multi-channel ALAC encoding up to 7.1
71 - TAK demuxer, parser, and decoder
72 - adaptive frame-level multithreading for H.264
76 - metadata (INFO tag) support in WAV muxer
77 - support for building DLLs using MSVC
78 - remove avserver daemon mode
79 - support building on the Plan 9 operating system
80 - ffv1: support version 1.3
85 - XWD encoder and decoder
86 - Support for fragmentation in the mov/mp4 muxer
87 - ISMV (Smooth Streaming) muxer
88 - CDXL demuxer and decoder
89 - Apple ProRes encoder
90 - Sun Rasterfile Encoder
92 - ID3v2 attached pictures reading and writing
93 - WMA Lossless decoder
95 - RealAudio Lossless decoder
97 - drop support for avconv without libavfilter
98 - add libavresample audio conversion library
99 - audio filters support in libavfilter and avconv
103 - avprobe output is now standard INI or JSON. The old format can still
104 be used with -of old.
105 - Indeo Audio decoder
106 - channelsplit audio filter
107 - RTMPT protocol support
108 - iLBC encoding/decoding via libilbc
109 - Microsoft Screen 1 decoder
111 - audio channel mapping filter
112 - Microsoft ATC Screen decoder
114 - TechSmith Screen Codec 2 decoder
115 - AAC encoding via libfdk-aac
116 - Microsoft Expression Encoder Screen decoder
117 - RTMPS protocol support
118 - RTMPTS protocol support
119 - JPEG 2000 encoding support through OpenJPEG
120 - G.723.1 demuxer and decoder
121 - RTMPE protocol support
122 - RTMPTE protocol support
123 - Canopus Lossless Codec decoder
124 - avconv -shortest option is now per-output file,
125 -pass and -passlogfile are now per-output stream
127 - Microsoft Screen 2 decoder
128 - RTP depacketization of JPEG
129 - Smooth Streaming live segmenter muxer
130 - RTP packetization of JPEG
131 - Opus decoder and encoder using libopus
132 - remove -same_quant, it hasn't worked for years
133 - support for building with MSVC
144 - Automatic thread count based on detection number of (available) CPU cores
145 - Deprecate libpostproc. If desired, the switch --enable-postproc will
146 enable it but it may be removed in a later Libav release.
147 - rv34: frame-level multi-threading
148 - optimized iMDCT transform on x86 using SSE for for mpegaudiodec
154 - Flash Screen Video 2 decoder
155 - ffplay/ffprobe/ffserver renamed to avplay/avprobe/avserver
156 - ffmpeg deprecated, added avconv, which is almost the same for now, except
157 for a few incompatible changes in the options, which will hopefully make them
158 easier to use. The changes are:
159 * The options placement is now strictly enforced! While in theory the
160 options for ffmpeg should be given in [input options] -i INPUT [output
161 options] OUTPUT order, in practice it was possible to give output options
162 before the -i and it mostly worked. Except when it didn't - the behavior was
163 a bit inconsistent. In avconv, it is not possible to mix input and output
164 options. All non-global options are reset after an input or output filename.
165 * All per-file options are now truly per-file - they apply only to the next
166 input or output file and specifying different values for different files
167 will now work properly (notably -ss and -t options).
168 * All per-stream options are now truly per-stream - it is possible to
169 specify which stream(s) should a given option apply to. See the Stream
170 specifiers section in the avconv manual for details.
171 * In ffmpeg some options (like -newvideo/-newaudio/...) are irregular in the
172 sense that they're specified after the output filename instead of before,
173 like all other options. In avconv this irregularity is removed, all options
174 apply to the next input or output file.
175 * -newvideo/-newaudio/-newsubtitle options were removed. Not only were they
176 irregular and highly confusing, they were also redundant. In avconv the -map
177 option will create new streams in the output file and map input streams to
178 them. E.g. avconv -i INPUT -map 0 OUTPUT will create an output stream for
179 each stream in the first input file.
180 * The -map option now has slightly different and more powerful syntax:
181 + Colons (':') are used to separate file index/stream type/stream index
182 instead of dots. Comma (',') is used to separate the sync stream instead
183 of colon.. This is done for consistency with other options.
184 + It's possible to specify stream type. E.g. -map 0:a:2 creates an
185 output stream from the third input audio stream.
186 + Omitting the stream index now maps all the streams of the given type,
187 not just the first. E.g. -map 0:s creates output streams for all the
188 subtitle streams in the first input file.
189 + Since -map can now match multiple streams, negative mappings were
190 introduced. Negative mappings disable some streams from an already
191 defined map. E.g. '-map 0 -map -0:a:1' means 'create output streams for
192 all the stream in the first input file, except for the second audio
194 * There is a new option -c (or -codec) for choosing the decoder/encoder to
195 use, which allows to precisely specify target stream(s) consistently with
196 other options. E.g. -c:v lib264 sets the codec for all video streams, -c:a:0
197 libvorbis sets the codec for the first audio stream and -c copy copies all
198 the streams without reencoding. Old -vcodec/-acodec/-scodec options are now
200 * It is now possible to precisely specify which stream should an AVOption
201 apply to. E.g. -b:v:0 2M sets the bitrate for the first video stream, while
202 -b:a 128k sets the bitrate for all audio streams. Note that the old -ab 128k
203 syntax is deprecated and will stop working soon.
204 * -map_chapters now takes only an input file index and applies to the next
205 output file. This is consistent with how all the other options work.
206 * -map_metadata now takes only an input metadata specifier and applies to
207 the next output file. Output metadata specifier is now part of the option
208 name, similarly to the AVOptions/map/codec feature above.
209 * -metadata can now be used to set metadata on streams and chapters, e.g.
210 -metadata:s:1 language=eng sets the language of the first stream to 'eng'.
211 This made -vlang/-alang/-slang options redundant, so they were removed.
212 * -qscale option now uses stream specifiers and applies to all streams, not
213 just video. I.e. plain -qscale number would now apply to all streams. To get
214 the old behavior, use -qscale:v. Also there is now a shortcut -q for -qscale
215 and -aq is now an alias for -q:a.
216 * -vbsf/-absf/-sbsf options were removed and replaced by a -bsf option which
217 uses stream specifiers. Use -bsf:v/a/s instead of the old options.
218 * -itsscale option now uses stream specifiers, so its argument is only the
220 * -intra option was removed, use -g 0 for the same effect.
221 * -psnr option was removed, use -flags +psnr for the same effect.
222 * -vf option is now an alias to the new -filter option, which uses stream specifiers.
223 * -vframes/-aframes/-dframes options are now aliases to the new -frames option.
224 * -vtag/-atag/-stag options are now aliases to the new -tag option.
226 - Windows Media Image decoder
230 - libcdio-paranoia input device for audio CD grabbing
232 - Apple ProRes decoder
233 - CELT in Ogg demuxing
234 - VC-1 interlaced decoding
235 - lut, lutrgb, and lutyuv filters
238 - Speex encoding via libspeex
239 - 4:2:2 H.264 decoding support
240 - 4:2:2 and 4:4:4 H.264 encoding with libx264
241 - Pulseaudio input device
242 - replacement Indeo 3 decoder
243 - TLS/SSL and HTTPS protocol support
244 - AVOptions API rewritten and documented
245 - most of CODEC_FLAG2_*, some CODEC_FLAG_* and many codec-specific fields in
246 AVCodecContext deprecated. Codec private options should be used instead.
247 - Properly working defaults in libx264 wrapper, support for native presets.
248 - Encrypted OMA files support
249 - Discworld II BMV decoding support
251 - OS X Video Decoder Acceleration (VDA) support
252 - CRI ADX audio format muxer and demuxer
253 - Playstation Portable PMP format demuxer
254 - PCM format support in OMA demuxer
256 - Dxtory capture format decoder
257 - v410 QuickTime uncompressed 4:4:4 10-bit encoder and decoder
259 - Simple segmenting muxer
266 - E-AC-3 audio encoder
267 - ac3enc: add channel coupling support
268 - floating-point sample format support for (E-)AC-3, DCA, AAC, Vorbis decoders
269 - H.264/MPEG frame-level multithreading
270 - av_metadata_* functions renamed to av_dict_* and moved to libavutil
271 - 4:4:4 H.264 decoding support
272 - 10-bit H.264 optimizations for x86
273 - bump libswscale for recently reported ABI break
278 - VP8 frame-level multithreading
279 - NEON optimizations for VP8
280 - removed a lot of deprecated API cruft
281 - FFT and IMDCT optimizations for AVX (Sandy Bridge) processors
283 - SMPTE 302M AES3 audio decoder
284 - ffmpeg no longer quits after the 'q' key is pressed; use 'ctrl+c' instead
285 - 9bit and 10bit per sample support in the H.264 decoder
290 - WebM support in Matroska de/muxer
291 - low overhead Ogg muxing
293 - VP8 de/encoding via libvpx
294 - Demuxer for On2's IVF format
295 - Pictor/PC Paint decoder
297 - libfaad2 wrapper removed
298 - DTS-ES extension (XCh) decoding support
300 - RTSP tunneling over HTTP
301 - RTP depacketization of SVQ3
302 - -strict inofficial replaced by -strict unofficial
303 - ffplay -exitonkeydown and -exitonmousedown options added
304 - native GSM / GSM MS decoder
305 - RTP depacketization of QDM2
306 - ANSI/ASCII art playback system
307 - Lego Mindstorms RSO de/muxer
308 - SubRip subtitle file muxer and demuxer
309 - Chinese AVS encoding via libxavs
310 - ffprobe -show_packets option added
311 - RTP packetization of Theora and Vorbis
312 - RTP depacketization of MP4A-LATM
313 - RTP packetization and depacketization of VP8
315 - Apple HTTP Live Streaming demuxer
318 - G.722 ADPCM audio encoder/decoder
321 - frei0r wrapper filter
322 - change crop filter syntax to width:height:x:y
323 - make the crop filter accept parametric expressions
324 - make ffprobe accept AVFormatContext options
327 - Demuxer for Leitch/Harris' VR native stream format (LXF)
328 - RTP depacketization of the X-QT QuickTime format
329 - SAP (Session Announcement Protocol, RFC 2974) muxer and demuxer
331 - ffmpeg -crop* options removed
332 - transpose filter added
333 - ffmpeg -force_key_frames option added
334 - demuxer for receiving raw rtp:// URLs without an SDP description
335 - single stream LATM/LOAS decoder
336 - setpts filter added
337 - Win64 support for optimized x86 assembly functions
338 - MJPEG/AVI1 to JPEG/JFIF bitstream filter
339 - ASS subtitle encoder and decoder
340 - IEC 61937 encapsulation for E-AC-3, TrueHD, DTS-HD (for HDMI passthrough)
341 - overlay filter added
342 - rename aspect filter to setdar, and pixelaspect to setsar
344 - Mobotix .mxg demuxer
345 - frei0r source added
346 - hqdn3d filter added
347 - RTP depacketization of QCELP
349 - gradfun filter added
351 - replace the ocv_smooth filter with a more generic ocv filter
352 - Windows Televison (WTV) demuxer
353 - FFmpeg metadata format muxer and demuxer
354 - SubRip (srt) subtitle decoder
355 - floating-point AC-3 encoder added
357 - ffmpeg -copytb option added
359 - Wing Commander IV movies decoder added
361 - Bink version 'b' audio and video decoder
362 - Bitmap Brothers JV playback system
363 - Apple HTTP Live Streaming protocol handler
364 - sndio support for playback and record
365 - Linux framebuffer input device added
366 - Chronomaster DFA decoder
367 - Mobotix MxPEG decoder
368 - AAC encoding via libvo-aacenc
369 - AMR-WB encoding via libvo-amrwbenc
371 - fieldorder video filter added
376 - PB-frame decoding for H.263
377 - deprecated vhook subsystem removed
378 - deprecated old scaler removed
380 - Alpha channel scaler
382 - RTP packetization of H.263
383 - RTP packetization of AMR
384 - RTP depacketization of Vorbis
385 - CorePNG decoding support
386 - Cook multichannel decoding support
387 - introduced avlanguage helpers in libavformat
388 - 8088flex TMV demuxer and decoder
389 - per-stream language-tags extraction in asfdec
390 - V210 decoder and encoder
391 - remaining GPL parts in AC-3 decoder converted to LGPL
393 - SoX native format muxer and demuxer
394 - AMR-NB decoding/encoding, AMR-WB decoding via OpenCORE libraries
396 - Electronic Arts Madcow decoder
397 - DivX (XSUB) subtitle encoder
398 - nonfree libamr support for AMR-NB/WB decoding/encoding removed
399 - experimental AAC encoder
400 - RTP depacketization of ASF and RTSP from WMS servers
401 - RTMP support in libavformat
402 - noX handling for OPT_BOOL X options
404 - IEC-61937 compatible Muxer
406 - Bluray (PGS) subtitle decoder
407 - LPCM support in MPEG-TS (HDMV RID as found on Blu-ray disks)
409 - Core Audio Format demuxer
411 - MD STUDIO audio demuxer
412 - RF64 support in WAV demuxer
413 - MPEG-4 Audio Lossless Coding (ALS) decoder
414 - -formats option split into -formats, -codecs, -bsfs, and -protocols
416 - CDG demuxer and decoder
418 - Auravision Aura 1 and 2 decoders
419 - Deluxe Paint Animation playback system
421 - Adobe Filmstrip muxer and demuxer
422 - RTP depacketization of H.263
423 - Bink demuxer and audio/video decoders
424 - enable symbol versioning by default for linkers that support it
425 - IFF PBM/ILBM bitmap decoder
428 - RTP depacketization of AMR
434 - Kega Game Video (KGV1) decoder
435 - VorbisComment writing for FLAC, Ogg FLAC and Ogg Speex files
436 - RTP depacketization of Theora
437 - HTTP Digest authentication
438 - RTMP/RTMPT/RTMPS/RTMPE/RTMPTE protocol support via librtmp
439 - Psygnosis YOP demuxer and video decoder
440 - spectral extension support in the E-AC-3 decoder
441 - unsharp video filter
442 - RTP hinting in the mov/3gp/mp4 muxer
443 - Dirac in Ogg demuxing
444 - seek to keyframes in Ogg
445 - 4:2:2 and 4:4:4 Theora decoding
446 - 35% faster VP3/Theora decoding
447 - faster AAC decoding
448 - faster H.264 decoding
449 - RealAudio 1.0 (14.4K) encoder
454 - DV50 AKA DVCPRO50 encoder, decoder, muxer and demuxer
455 - TechSmith Camtasia (TSCC) video decoder
456 - IBM Ultimotion (ULTI) video decoder
457 - Sierra Online audio file demuxer and decoder
458 - Apple QuickDraw (qdrw) video decoder
459 - Creative ADPCM audio decoder (16 bits as well as 8 bits schemes)
460 - Electronic Arts Multimedia (WVE/UV2/etc.) file demuxer
461 - Miro VideoXL (VIXL) video decoder
462 - H.261 video encoder
464 - Nullsoft Video (NSV) file demuxer
465 - Shorten audio decoder
467 - Apple Lossless Audio Codec (ALAC) decoder
468 - Winnov WNV1 video decoder
469 - Autodesk Animator Studio Codec (AASC) decoder
470 - Indeo 2 video decoder
471 - Fraps FPS1 video decoder
472 - Snow video encoder/decoder
473 - Sonic audio encoder/decoder
474 - Vorbis audio decoder
475 - Macromedia ADPCM decoder
476 - Duck TrueMotion 2 video decoder
477 - support for decoding FLX and DTA extensions in FLIC files
478 - H.264 custom quantization matrices support
479 - ffserver fixed, it should now be usable again
481 - Real Cooker audio decoder
482 - TrueSpeech audio decoder
483 - WMA2 audio decoder fixed, now all files should play correctly
484 - RealAudio 14.4 and 28.8 decoders fixed
486 - build system improvements
487 - tabs and trailing whitespace removed from the codebase
488 - CamStudio video decoder
489 - AIFF/AIFF-C audio format, encoding and decoding
490 - ADTS AAC file reading and writing
491 - Creative VOC file reading and writing
492 - American Laser Games multimedia (*.mm) playback system
493 - Zip Motion Blocks Video decoder
494 - improved Theora/VP3 decoder
495 - True Audio (TTA) decoder
496 - AVS demuxer and video decoder
498 - Smacker demuxer and decoder
499 - NuppelVideo/MythTV demuxer and RTjpeg decoder
501 - MPEG-2 intra VLC support
502 - MPEG-2 4:2:2 encoder
503 - Flash Screen Video decoder
505 - Chinese AVS decoder
508 - VC-1/WMV3/WMV9 video decoder
511 - VMware video decoder
514 - WavPack lossless audio decoder
515 - Targa (.TGA) picture decoder
516 - Vorbis audio encoder
517 - Delphine Software .cin demuxer/audio and video decoder
518 - Tiertex .seq demuxer/video decoder
520 - TIFF picture encoder and decoder
521 - GIF picture decoder
522 - Intel Music Coder decoder
523 - Zip Motion Blocks Video encoder
525 - Flash Screen Video encoder
526 - Theora encoding via libtheora
529 - GSM-MS encoder and decoder
531 - DXA demuxer and decoder
533 - Gamecube movie (.THP) playback system
534 - Blackfin optimizations
535 - Interplay C93 demuxer and video decoder
536 - Bethsoft VID demuxer and video decoder
539 - V.Flash PTX decoder
540 - RoQ muxer, RoQ audio encoder
541 - Renderware TXD demuxer and decoder
542 - extern C declarations for C++ removed from headers
543 - sws_flags command line option
547 - OS/2 support removed and restored again
550 - additional SPARC (VIS) optimizations
552 - slice-based parallel H.264 decoding
553 - Monkey's Audio demuxer and decoder
554 - AMV audio and video decoder
556 - H.264 PAFF decoding
557 - Nellymoser ASAO decoder
558 - Beam Software SIFF demuxer and decoder
559 - libvorbis Vorbis decoding removed in favor of native decoder
560 - IntraX8 (J-Frame) subdecoder for WMV2 and VC-1
561 - Ogg (Theora, Vorbis and FLAC) muxer
562 - The "device" muxers and demuxers are now in a new libavdevice library
563 - PC Paintbrush PCX decoder
564 - Sun Rasterfile decoder
565 - TechnoTrend PVA demuxer
566 - Linux Media Labs MPEG-4 (LMLM4) demuxer
567 - AVM2 (Flash 9) SWF muxer
568 - QT variant of IMA ADPCM encoder
570 - iPod/iPhone compatible mp4 muxer
572 - MSN TCP Webcam stream demuxer
573 - RL2 demuxer / decoder
576 - non-recursive Makefiles
578 - MAXIS EA XA (.xa) demuxer / decoder
582 - Electronic Arts CMV decoder
583 - Motion Pixels Video decoder
584 - Motion Pixels MVI demuxer
585 - removed animated GIF decoder/demuxer
586 - D-Cinema audio muxer
587 - Electronic Arts TGV decoder
588 - Apple Lossless Audio Codec (ALAC) encoder
590 - floating point PCM encoder/decoder
592 - DV100 AKA DVCPRO HD decoder and demuxer
593 - E-AC-3 support added to AC-3 decoder
594 - Nellymoser ASAO encoder
595 - ASS and SSA demuxer and muxer
596 - liba52 wrapper removed
597 - SVQ3 watermark decoding support
598 - Speex decoding via libspeex
599 - Electronic Arts TGQ decoder
601 - QCELP / PureVoice decoder
603 - hybrid WavPack support
604 - R3D REDCODE demuxer
605 - ALSA support for playback and record
606 - Electronic Arts TQI decoder
607 - OpenJPEG based JPEG 2000 decoder
608 - NC (NC4600) camera file demuxer
609 - Gopher client support
611 - generic metadata API
616 - DV encoder, DV muxer
617 - Microsoft RLE video decoder
618 - Microsoft Video-1 decoder
619 - Apple Animation (RLE) decoder
620 - Apple Graphics (SMC) decoder
621 - Apple Video (RPZA) decoder
623 - Sega FILM (CPK) file demuxer
624 - Westwood multimedia support (VQA & AUD files)
625 - Id Quake II CIN playback support
627 - FLIC playback support
628 - RealVideo 2.0 (RV20) decoder
629 - Duck TrueMotion v1 (DUCK) video decoder
630 - Sierra VMD demuxer and video decoder
631 - MSZH and ZLIB decoder support
635 - rate distortion optimal cbp support
636 - rate distorted optimal ac prediction for MPEG-4
637 - rate distorted optimal lambda->qp support
638 - AAC encoding with libfaac
639 - Sunplus JPEG codec (SP5X) support
640 - use Lagrange multipler instead of QP for ratecontrol
641 - Theora/VP3 decoding support
642 - XA and ADX ADPCM codecs
643 - export MPEG-2 active display area / pan scan
644 - Add support for configuring with IBM XLC
645 - floating point AAN DCT
646 - initial support for zygo video (not complete)
648 - new audio/video parser API
650 - av_read_frame() and av_seek_frame() support
651 - missing last frame fixes
652 - seek by mouse in ffplay
653 - noise reduction of DCT coefficients
654 - H.263 OBMC & 4MV support
655 - H.263 alternative inter vlc support
657 - H.263 slice structured mode
658 - interlaced DCT support for MPEG-2 encoding
659 - stuffing to stay above min_bitrate
660 - MB type & QP visualization
661 - frame stepping for ffplay
662 - interlaced motion estimation
663 - alternate scantable support
664 - SVCD scan offset support
667 - quantizer noise shaping
668 - G.726 ADPCM audio codec
670 - multithreaded/SMP motion estimation
671 - multithreaded/SMP encoding for MPEG-1/MPEG-2/MPEG-4/H.263
672 - multithreaded/SMP decoding for MPEG-2
674 - Metrowerks CodeWarrior suppport
675 - H.263+ custom pcf support
676 - nicer output for 'ffmpeg -formats'
678 - SGI image format, encoding and decoding
679 - H.264 loop filter support
680 - H.264 CABAC support
681 - nicer looking arrows for the motion vector visualization
682 - improved VCD support
683 - audio timestamp drift compensation
684 - MPEG-2 YUV 422/444 support
685 - polyphase kaiser windowed sinc and blackman nuttall windowed sinc audio resample
686 - better image scaling
688 - correctly interleave packets during encoding
689 - VIS optimized motion compensation
690 - intra_dc_precision>0 encoding support
691 - support reuse of motion vectors/MB types/field select values of the source video
692 - more accurate deblock filter
694 - many optimizations and bugfixes
695 - FunCom ISS audio file demuxer and according ADPCM decoding
700 - MPEG-2 video encoding (Michael)
701 - Id RoQ playback subsystem (Mike Melanson and Tim Ferguson)
702 - Wing Commander III Movie (.mve) file playback subsystem (Mike Melanson
704 - Xan DPCM audio decoder (Mario Brito)
705 - Interplay MVE playback subsystem (Mike Melanson)
706 - Duck DK3 and DK4 ADPCM audio decoders (Mike Melanson)
711 - RealAudio 1.0 (14_4) and 2.0 (28_8) native decoders. Author unknown, code from mplayerhq
712 (originally from public domain player for Amiga at http://www.honeypot.net/audio)
713 - current version now also compiles with older GCC (Fabrice)
714 - 4X multimedia playback system including 4xm file demuxer (Mike
715 Melanson), and 4X video and audio codecs (Michael)
716 - Creative YUV (CYUV) decoder (Mike Melanson)
717 - FFV1 codec (our very simple lossless intra only codec, compresses much better
718 than HuffYUV) (Michael)
719 - ASV1 (Asus), H.264, Intel indeo3 codecs have been added (various)
720 - tiny PNG encoder and decoder, tiny GIF decoder, PAM decoder (PPM with
721 alpha support), JPEG YUV colorspace support. (Fabrice Bellard)
722 - ffplay has been replaced with a newer version which uses SDL (optionally)
723 for multiplatform support (Fabrice)
724 - Sorenson Version 3 codec (SVQ3) support has been added (decoding only) - donated
726 - AMR format has been added (Johannes Carlsson)
727 - 3GP support has been added (Johannes Carlsson)
728 - VP3 codec has been added (Mike Melanson)
729 - more MPEG-1/2 fixes
730 - better multiplatform support, MS Visual Studio fixes (various)
731 - AltiVec optimizations (Magnus Damn and others)
732 - SH4 processor support has been added (BERO)
733 - new public interfaces (avcodec_get_pix_fmt) (Roman Shaposhnick)
734 - VOB streaming support (Brian Foley)
735 - better MP3 autodetection (Andriy Rysin)
736 - qpel encoding (Michael)
737 - 4mv+b frames encoding finally fixed (Michael)
738 - chroma ME (Michael)
739 - 5 comparison functions for ME (Michael)
740 - B-frame encoding speedup (Michael)
741 - WMV2 codec (unfinished - Michael)
742 - user specified diamond size for EPZS (Michael)
743 - Playstation STR playback subsystem, still experimental (Mike and Michael)
744 - ASV2 codec (Michael)
745 - CLJR decoder (Alex)
747 .. And lots more new enhancements and fixes.
752 - completely new integer only MPEG audio layer 1/2/3 decoder rewritten
754 - Recoded DCT and motion vector search with gcc (no longer depends on nasm)
755 - fix quantization bug in AC3 encoder
756 - added PCM codecs and format. Corrected WAV/AVI/ASF PCM issues
757 - added prototype ffplay program
758 - added GOB header parsing on H.263/H.263+ decoder (Juanjo)
759 - bug fix on MCBPC tables of H.263 (Juanjo)
760 - bug fix on DC coefficients of H.263 (Juanjo)
761 - added Advanced Prediction Mode on H.263/H.263+ decoder (Juanjo)
762 - now we can decode H.263 streams found in QuickTime files (Juanjo)
763 - now we can decode H.263 streams found in VIVO v1 files(Juanjo)
764 - preliminary RTP "friendly" mode for H.263/H.263+ coding. (Juanjo)
765 - added GOB header for H.263/H.263+ coding on RTP mode (Juanjo)
766 - now H.263 picture size is returned on the first decoded frame (Juanjo)
767 - added first regression tests
768 - added MPEG-2 TS demuxer
769 - new demux API for libav
770 - more accurate and faster IDCT (Michael)
771 - faster and entropy-controlled motion search (Michael)
772 - two pass video encoding (Michael)
773 - new video rate control (Michael)
774 - added MSMPEG4V1, MSMPEGV2 and WMV1 support (Michael)
775 - great performance improvement of video encoders and decoders (Michael)
776 - new and faster bit readers and vlc parsers (Michael)
777 - high quality encoding mode: tries all macroblock/VLC types (Michael)
778 - added DV video decoder
779 - preliminary RTP/RTSP support in ffserver and libavformat
780 - H.263+ AIC decoding/encoding support (Juanjo)
781 - VCD MPEG-PS mode (Juanjo)
782 - PSNR stuff (Juanjo)
783 - simple stats output (Juanjo)
784 - 16-bit and 15-bit RGB/BGR/GBR support (Bisqwit)
789 - some header fixes (Zdenek Kabelac <kabi at informatics.muni.cz>)
790 - many MMX optimizations (Nick Kurshev <nickols_k at mail.ru>)
791 - added configure system (actually a small shell script)
792 - added MPEG audio layer 1/2/3 decoding using LGPL'ed mpglib by
793 Michael Hipp (temporary solution - waiting for integer only
795 - fixed VIDIOCSYNC interrupt
796 - added Intel H.263 decoding support ('I263' AVI fourCC)
797 - added Real Video 1.0 decoding (needs further testing)
798 - simplified image formats again. Added PGM format (=grey
799 pgm). Renamed old PGM to PGMYUV.
800 - fixed msmpeg4 slice issues (tell me if you still find problems)
801 - fixed OpenDivX bugs with newer versions (added VOL header decoding)
802 - added support for MPlayer interface
803 - added macroblock skip optimization
804 - added MJPEG decoder
805 - added mmx/mmxext IDCT from libmpeg2
806 - added pgmyuvpipe, ppm, and ppm_pipe formats (original patch by Celer
807 <celer at shell.scrypt.net>)
808 - added pixel format conversion layer (e.g. for MJPEG or PPM)
809 - added deinterlacing option
811 - MPEG-4 vol header fixes (Jonathan Marsden <snmjbm at pacbell.net>)
812 - ARM optimizations (Lionel Ulmer <lionel.ulmer at free.fr>).
813 - Windows porting of file converter
814 - added MJPEG raw format (input/ouput)
815 - added JPEG image format support (input/output)
820 - fixed some std header definitions (Bjorn Lindgren
821 <bjorn.e.lindgren at telia.com>).
822 - added MPEG demuxer (MPEG-1 and 2 compatible).
824 - added prototype RM demuxer
825 - added AC3 decoding (done with libac3 by Aaron Holtzman)
826 - added decoding codec parameter guessing (.e.g. for MPEG, because the
827 header does not include them)
828 - fixed header generation in MPEG-1, AVI and ASF muxer: wmplayer can now
829 play them (only tested video)
830 - fixed H.263 white bug
831 - fixed phase rounding in img resample filter
832 - add MMX code for polyphase img resample filter
833 - added CPU autodetection
834 - added generic title/author/copyright/comment string handling (ASF and RM
836 - added SWF demux to extract MP3 track (not usable yet because no MP3
838 - added fractional frame rate support
839 - codecs are no longer searched by read_header() (should fix ffserver
845 - BGR24 patch (initial patch by Jeroen Vreeken <pe1rxq at amsat.org>)
846 - fixed raw yuv output
847 - added motion rounding support in MPEG-4
848 - fixed motion bug rounding in MSMPEG4
849 - added B-frame handling in video core
850 - added full MPEG-1 decoding support
851 - added partial (frame only) MPEG-2 support
852 - changed the FOURCC code for H.263 to "U263" to be able to see the
853 +AVI/H.263 file with the UB Video H.263+ decoder. MPlayer works with
854 this +codec ;) (JuanJo).
855 - Halfpel motion estimation after MB type selection (JuanJo)
856 - added pgm and .Y.U.V output format
857 - suppressed 'img:' protocol. Simply use: /tmp/test%d.[pgm|Y] as input or
859 - added pgmpipe I/O format (original patch from Martin Aumueller
860 <lists at reserv.at>, but changed completely since we use a format
861 instead of a protocol)
866 - added H.263/MPEG-4/MSMPEG4 decoding support. MPEG-4 decoding support
867 (for OpenDivX) is almost complete: 8x8 MVs and rounding are
868 missing. MSMPEG4 support is complete.
869 - added prototype MPEG-1 decoder. Only I- and P-frames handled yet (it
870 can decode ffmpeg MPEGs :-)).
871 - added libavcodec API documentation (see apiexample.c).
872 - fixed image polyphase bug (the bottom of some images could be
874 - added support for non clipped motion vectors (decoding only)
875 and image sizes non-multiple of 16
876 - added support for AC prediction (decoding only)
877 - added file overwrite confirmation (can be disabled with -y)
878 - added custom size picture to H.263 using H.263+ (Juanjo)
883 - added MSMPEG4 (aka DivX) compatible encoder. Changed default codec
884 of AVI and ASF to DIV3.
885 - added -me option to set motion estimation method
886 (default=log). suppressed redundant -hq option.
887 - added options -acodec and -vcodec to force a given codec (useful for
890 - improved dct_quantize speed
891 - factorized some motion estimation code
896 - removing grab code from ffserver and moved it to ffmpeg. Added
897 multistream support to ffmpeg.
898 - added timeshifting support for live feeds (option ?date=xxx in the
900 - added high quality image resize code with polyphase filter (need
901 mmx/see optimization). Enable multiple image size support in ffserver.
902 - added multi live feed support in ffserver
903 - suppressed master feature from ffserver (it should be done with an
904 external program which opens the .ffm url and writes it to another
906 - added preliminary support for video stream parsing (WAV and AVI half
907 done). Added proper support for audio/video file conversion in
909 - added preliminary support for video file sending from ffserver
910 - redesigning I/O subsystem: now using URL based input and output
912 - added WAV format support
913 - added "tty user interface" to ffmpeg to stop grabbing gracefully
914 - added MMX/SSE optimizations to SAD (Sums of Absolutes Differences)
915 (Juan J. Sierralta P. a.k.a. "Juanjo" <juanjo at atmlab.utfsm.cl>)
916 - added MMX DCT from mpeg2_movie 1.5 (Juanjo)
917 - added new motion estimation algorithms, log and phods (Juanjo)
918 - changed directories: libav for format handling, libavcodec for
924 - added stereo in MPEG audio encoder
929 - added 'high quality' mode which use motion vectors. It can be used in
930 real time at low resolution.
931 - fixed rounding problems which caused quality problems at high
932 bitrates and large GOP size
935 version 0.3.2: small fixes
941 version 0.3.1: added avi/divx support
944 - added MPEG-4 codec compatible with OpenDivX. It is based on the H.263 codec
945 - added sound for flash format (not tested)
948 version 0.3: initial public release