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
14 - support ID3v2 tags in ASF files
15 - reference-counting for AVFrame and AVPacket data
16 - avconv now fails when input options are used for output file
18 - avconv options -filter_script and -filter_complex_script, which allow a
19 filtergraph description to be read from a file
20 - uniform options syntax across all filters
23 - asetpts filter (same as setpts, but for audio)
24 - trim and atrim filters
25 - avconv -t and -ss (output-only) options are now sample-accurate when
27 - Matroska muxer can now put the index at the beginning of the file.
28 - avconv -deinterlace option removed, the yadif filter should be used instead
29 - Apple Intermediate Codec decoder
30 - Escape 130 video decoder
31 - support for slice multithreading in libavfilter
32 - VC-1 interlaced B-frame support
33 - support for WavPack muxing (raw and in Matroska)
35 - WavPack encoding through libwavpack
36 - Added the -n parameter to avconv
38 - when transcoding with avconv (i.e. not streamcopying), -ss is now accurate
39 even when used as an input option. Previous behavior can be restored with
40 the -noaccurate_seek option.
41 - avconv -t option can now be used for inputs, to limit the duration of
42 data read from an input file
43 - Voxware MetaSound decoder
45 - Error Resilient AAC syntax (ER AAC LC) decoding
46 - Low Delay AAC (ER AAC LD) decoding
47 - mux chapters in ASF files
48 - Opus in Ogg demuxing
49 - Enhanced Low Delay AAC (ER AAC ELD) decoding (no LD SBR support)
51 - HNM version 4 demuxer and video decoder
53 - raw HEVC, HEVC in MOV/MP4, HEVC in Matroska, HEVC in MPEG-TS demuxing
54 - remove avplay -vismv option, which has not worked for a long time
56 - setsar/setdar filters now support variables in ratio expressions
57 - dar variable in the scale filter now returns the actual DAR (i.e. a * sar)
59 - support for decoding through VDPAU in avconv (the -hwaccel option)
60 - remove mp3_header_(de)compress bitstream filters
61 - stereoscopic 3d metadata handling
62 - png standalone parser
63 - WebP encoding via libwebp
66 - Mirillis FIC video decoder
68 - compand audio filter
72 - av_basename and av_dirname
73 - adobe and limelight publisher authentication in RTMP
74 - VDPAU hardware acceleration through normal hwaccel
79 - ashowinfo audio filter
80 - 24-bit FLAC encoding
82 - deprecated the avconv -vol option. the volume filter is to be used instead.
83 - multi-channel ALAC encoding up to 7.1
84 - TAK demuxer, parser, and decoder
85 - adaptive frame-level multithreading for H.264
89 - metadata (INFO tag) support in WAV muxer
90 - support for building DLLs using MSVC
91 - remove avserver daemon mode
92 - support building on the Plan 9 operating system
93 - ffv1: support version 1.3
98 - XWD encoder and decoder
99 - Support for fragmentation in the mov/mp4 muxer
100 - ISMV (Smooth Streaming) muxer
101 - CDXL demuxer and decoder
102 - Apple ProRes encoder
103 - Sun Rasterfile Encoder
105 - ID3v2 attached pictures reading and writing
106 - WMA Lossless decoder
108 - RealAudio Lossless decoder
110 - drop support for avconv without libavfilter
111 - add libavresample audio conversion library
112 - audio filters support in libavfilter and avconv
116 - avprobe output is now standard INI or JSON. The old format can still
117 be used with -of old.
118 - Indeo Audio decoder
119 - channelsplit audio filter
120 - RTMPT protocol support
121 - iLBC encoding/decoding via libilbc
122 - Microsoft Screen 1 decoder
124 - audio channel mapping filter
125 - Microsoft ATC Screen decoder
127 - TechSmith Screen Codec 2 decoder
128 - AAC encoding via libfdk-aac
129 - Microsoft Expression Encoder Screen decoder
130 - RTMPS protocol support
131 - RTMPTS protocol support
132 - JPEG 2000 encoding support through OpenJPEG
133 - G.723.1 demuxer and decoder
134 - RTMPE protocol support
135 - RTMPTE protocol support
136 - Canopus Lossless Codec decoder
137 - avconv -shortest option is now per-output file,
138 -pass and -passlogfile are now per-output stream
140 - Microsoft Screen 2 decoder
141 - RTP depacketization of JPEG
142 - Smooth Streaming live segmenter muxer
143 - RTP packetization of JPEG
144 - Opus decoder and encoder using libopus
145 - remove -same_quant, it hasn't worked for years
146 - support for building with MSVC
157 - Automatic thread count based on detection number of (available) CPU cores
158 - Deprecate libpostproc. If desired, the switch --enable-postproc will
159 enable it but it may be removed in a later Libav release.
160 - rv34: frame-level multi-threading
161 - optimized iMDCT transform on x86 using SSE for for mpegaudiodec
167 - Flash Screen Video 2 decoder
168 - ffplay/ffprobe/ffserver renamed to avplay/avprobe/avserver
169 - ffmpeg deprecated, added avconv, which is almost the same for now, except
170 for a few incompatible changes in the options, which will hopefully make them
171 easier to use. The changes are:
172 * The options placement is now strictly enforced! While in theory the
173 options for ffmpeg should be given in [input options] -i INPUT [output
174 options] OUTPUT order, in practice it was possible to give output options
175 before the -i and it mostly worked. Except when it didn't - the behavior was
176 a bit inconsistent. In avconv, it is not possible to mix input and output
177 options. All non-global options are reset after an input or output filename.
178 * All per-file options are now truly per-file - they apply only to the next
179 input or output file and specifying different values for different files
180 will now work properly (notably -ss and -t options).
181 * All per-stream options are now truly per-stream - it is possible to
182 specify which stream(s) should a given option apply to. See the Stream
183 specifiers section in the avconv manual for details.
184 * In ffmpeg some options (like -newvideo/-newaudio/...) are irregular in the
185 sense that they're specified after the output filename instead of before,
186 like all other options. In avconv this irregularity is removed, all options
187 apply to the next input or output file.
188 * -newvideo/-newaudio/-newsubtitle options were removed. Not only were they
189 irregular and highly confusing, they were also redundant. In avconv the -map
190 option will create new streams in the output file and map input streams to
191 them. E.g. avconv -i INPUT -map 0 OUTPUT will create an output stream for
192 each stream in the first input file.
193 * The -map option now has slightly different and more powerful syntax:
194 + Colons (':') are used to separate file index/stream type/stream index
195 instead of dots. Comma (',') is used to separate the sync stream instead
196 of colon.. This is done for consistency with other options.
197 + It's possible to specify stream type. E.g. -map 0:a:2 creates an
198 output stream from the third input audio stream.
199 + Omitting the stream index now maps all the streams of the given type,
200 not just the first. E.g. -map 0:s creates output streams for all the
201 subtitle streams in the first input file.
202 + Since -map can now match multiple streams, negative mappings were
203 introduced. Negative mappings disable some streams from an already
204 defined map. E.g. '-map 0 -map -0:a:1' means 'create output streams for
205 all the stream in the first input file, except for the second audio
207 * There is a new option -c (or -codec) for choosing the decoder/encoder to
208 use, which allows to precisely specify target stream(s) consistently with
209 other options. E.g. -c:v lib264 sets the codec for all video streams, -c:a:0
210 libvorbis sets the codec for the first audio stream and -c copy copies all
211 the streams without reencoding. Old -vcodec/-acodec/-scodec options are now
213 * It is now possible to precisely specify which stream should an AVOption
214 apply to. E.g. -b:v:0 2M sets the bitrate for the first video stream, while
215 -b:a 128k sets the bitrate for all audio streams. Note that the old -ab 128k
216 syntax is deprecated and will stop working soon.
217 * -map_chapters now takes only an input file index and applies to the next
218 output file. This is consistent with how all the other options work.
219 * -map_metadata now takes only an input metadata specifier and applies to
220 the next output file. Output metadata specifier is now part of the option
221 name, similarly to the AVOptions/map/codec feature above.
222 * -metadata can now be used to set metadata on streams and chapters, e.g.
223 -metadata:s:1 language=eng sets the language of the first stream to 'eng'.
224 This made -vlang/-alang/-slang options redundant, so they were removed.
225 * -qscale option now uses stream specifiers and applies to all streams, not
226 just video. I.e. plain -qscale number would now apply to all streams. To get
227 the old behavior, use -qscale:v. Also there is now a shortcut -q for -qscale
228 and -aq is now an alias for -q:a.
229 * -vbsf/-absf/-sbsf options were removed and replaced by a -bsf option which
230 uses stream specifiers. Use -bsf:v/a/s instead of the old options.
231 * -itsscale option now uses stream specifiers, so its argument is only the
233 * -intra option was removed, use -g 0 for the same effect.
234 * -psnr option was removed, use -flags +psnr for the same effect.
235 * -vf option is now an alias to the new -filter option, which uses stream specifiers.
236 * -vframes/-aframes/-dframes options are now aliases to the new -frames option.
237 * -vtag/-atag/-stag options are now aliases to the new -tag option.
239 - Windows Media Image decoder
243 - libcdio-paranoia input device for audio CD grabbing
245 - Apple ProRes decoder
246 - CELT in Ogg demuxing
247 - VC-1 interlaced decoding
248 - lut, lutrgb, and lutyuv filters
251 - Speex encoding via libspeex
252 - 4:2:2 H.264 decoding support
253 - 4:2:2 and 4:4:4 H.264 encoding with libx264
254 - Pulseaudio input device
255 - replacement Indeo 3 decoder
256 - TLS/SSL and HTTPS protocol support
257 - AVOptions API rewritten and documented
258 - most of CODEC_FLAG2_*, some CODEC_FLAG_* and many codec-specific fields in
259 AVCodecContext deprecated. Codec private options should be used instead.
260 - Properly working defaults in libx264 wrapper, support for native presets.
261 - Encrypted OMA files support
262 - Discworld II BMV decoding support
264 - OS X Video Decoder Acceleration (VDA) support
265 - CRI ADX audio format muxer and demuxer
266 - Playstation Portable PMP format demuxer
267 - PCM format support in OMA demuxer
269 - Dxtory capture format decoder
270 - v410 QuickTime uncompressed 4:4:4 10-bit encoder and decoder
272 - Simple segmenting muxer
279 - E-AC-3 audio encoder
280 - ac3enc: add channel coupling support
281 - floating-point sample format support for (E-)AC-3, DCA, AAC, Vorbis decoders
282 - H.264/MPEG frame-level multithreading
283 - av_metadata_* functions renamed to av_dict_* and moved to libavutil
284 - 4:4:4 H.264 decoding support
285 - 10-bit H.264 optimizations for x86
286 - bump libswscale for recently reported ABI break
291 - VP8 frame-level multithreading
292 - NEON optimizations for VP8
293 - removed a lot of deprecated API cruft
294 - FFT and IMDCT optimizations for AVX (Sandy Bridge) processors
296 - SMPTE 302M AES3 audio decoder
297 - ffmpeg no longer quits after the 'q' key is pressed; use 'ctrl+c' instead
298 - 9bit and 10bit per sample support in the H.264 decoder
303 - WebM support in Matroska de/muxer
304 - low overhead Ogg muxing
306 - VP8 de/encoding via libvpx
307 - Demuxer for On2's IVF format
308 - Pictor/PC Paint decoder
310 - libfaad2 wrapper removed
311 - DTS-ES extension (XCh) decoding support
313 - RTSP tunneling over HTTP
314 - RTP depacketization of SVQ3
315 - -strict inofficial replaced by -strict unofficial
316 - ffplay -exitonkeydown and -exitonmousedown options added
317 - native GSM / GSM MS decoder
318 - RTP depacketization of QDM2
319 - ANSI/ASCII art playback system
320 - Lego Mindstorms RSO de/muxer
321 - SubRip subtitle file muxer and demuxer
322 - Chinese AVS encoding via libxavs
323 - ffprobe -show_packets option added
324 - RTP packetization of Theora and Vorbis
325 - RTP depacketization of MP4A-LATM
326 - RTP packetization and depacketization of VP8
328 - Apple HTTP Live Streaming demuxer
331 - G.722 ADPCM audio encoder/decoder
334 - frei0r wrapper filter
335 - change crop filter syntax to width:height:x:y
336 - make the crop filter accept parametric expressions
337 - make ffprobe accept AVFormatContext options
340 - Demuxer for Leitch/Harris' VR native stream format (LXF)
341 - RTP depacketization of the X-QT QuickTime format
342 - SAP (Session Announcement Protocol, RFC 2974) muxer and demuxer
344 - ffmpeg -crop* options removed
345 - transpose filter added
346 - ffmpeg -force_key_frames option added
347 - demuxer for receiving raw rtp:// URLs without an SDP description
348 - single stream LATM/LOAS decoder
349 - setpts filter added
350 - Win64 support for optimized x86 assembly functions
351 - MJPEG/AVI1 to JPEG/JFIF bitstream filter
352 - ASS subtitle encoder and decoder
353 - IEC 61937 encapsulation for E-AC-3, TrueHD, DTS-HD (for HDMI passthrough)
354 - overlay filter added
355 - rename aspect filter to setdar, and pixelaspect to setsar
357 - Mobotix .mxg demuxer
358 - frei0r source added
359 - hqdn3d filter added
360 - RTP depacketization of QCELP
362 - gradfun filter added
364 - replace the ocv_smooth filter with a more generic ocv filter
365 - Windows Televison (WTV) demuxer
366 - FFmpeg metadata format muxer and demuxer
367 - SubRip (srt) subtitle decoder
368 - floating-point AC-3 encoder added
370 - ffmpeg -copytb option added
372 - Wing Commander IV movies decoder added
374 - Bink version 'b' audio and video decoder
375 - Bitmap Brothers JV playback system
376 - Apple HTTP Live Streaming protocol handler
377 - sndio support for playback and record
378 - Linux framebuffer input device added
379 - Chronomaster DFA decoder
380 - Mobotix MxPEG decoder
381 - AAC encoding via libvo-aacenc
382 - AMR-WB encoding via libvo-amrwbenc
384 - fieldorder video filter added
389 - PB-frame decoding for H.263
390 - deprecated vhook subsystem removed
391 - deprecated old scaler removed
393 - Alpha channel scaler
395 - RTP packetization of H.263
396 - RTP packetization of AMR
397 - RTP depacketization of Vorbis
398 - CorePNG decoding support
399 - Cook multichannel decoding support
400 - introduced avlanguage helpers in libavformat
401 - 8088flex TMV demuxer and decoder
402 - per-stream language-tags extraction in asfdec
403 - V210 decoder and encoder
404 - remaining GPL parts in AC-3 decoder converted to LGPL
406 - SoX native format muxer and demuxer
407 - AMR-NB decoding/encoding, AMR-WB decoding via OpenCORE libraries
409 - Electronic Arts Madcow decoder
410 - DivX (XSUB) subtitle encoder
411 - nonfree libamr support for AMR-NB/WB decoding/encoding removed
412 - experimental AAC encoder
413 - RTP depacketization of ASF and RTSP from WMS servers
414 - RTMP support in libavformat
415 - noX handling for OPT_BOOL X options
417 - IEC-61937 compatible Muxer
419 - Bluray (PGS) subtitle decoder
420 - LPCM support in MPEG-TS (HDMV RID as found on Blu-ray disks)
422 - Core Audio Format demuxer
424 - MD STUDIO audio demuxer
425 - RF64 support in WAV demuxer
426 - MPEG-4 Audio Lossless Coding (ALS) decoder
427 - -formats option split into -formats, -codecs, -bsfs, and -protocols
429 - CDG demuxer and decoder
431 - Auravision Aura 1 and 2 decoders
432 - Deluxe Paint Animation playback system
434 - Adobe Filmstrip muxer and demuxer
435 - RTP depacketization of H.263
436 - Bink demuxer and audio/video decoders
437 - enable symbol versioning by default for linkers that support it
438 - IFF PBM/ILBM bitmap decoder
441 - RTP depacketization of AMR
447 - Kega Game Video (KGV1) decoder
448 - VorbisComment writing for FLAC, Ogg FLAC and Ogg Speex files
449 - RTP depacketization of Theora
450 - HTTP Digest authentication
451 - RTMP/RTMPT/RTMPS/RTMPE/RTMPTE protocol support via librtmp
452 - Psygnosis YOP demuxer and video decoder
453 - spectral extension support in the E-AC-3 decoder
454 - unsharp video filter
455 - RTP hinting in the mov/3gp/mp4 muxer
456 - Dirac in Ogg demuxing
457 - seek to keyframes in Ogg
458 - 4:2:2 and 4:4:4 Theora decoding
459 - 35% faster VP3/Theora decoding
460 - faster AAC decoding
461 - faster H.264 decoding
462 - RealAudio 1.0 (14.4K) encoder
467 - DV50 AKA DVCPRO50 encoder, decoder, muxer and demuxer
468 - TechSmith Camtasia (TSCC) video decoder
469 - IBM Ultimotion (ULTI) video decoder
470 - Sierra Online audio file demuxer and decoder
471 - Apple QuickDraw (qdrw) video decoder
472 - Creative ADPCM audio decoder (16 bits as well as 8 bits schemes)
473 - Electronic Arts Multimedia (WVE/UV2/etc.) file demuxer
474 - Miro VideoXL (VIXL) video decoder
475 - H.261 video encoder
477 - Nullsoft Video (NSV) file demuxer
478 - Shorten audio decoder
480 - Apple Lossless Audio Codec (ALAC) decoder
481 - Winnov WNV1 video decoder
482 - Autodesk Animator Studio Codec (AASC) decoder
483 - Indeo 2 video decoder
484 - Fraps FPS1 video decoder
485 - Snow video encoder/decoder
486 - Sonic audio encoder/decoder
487 - Vorbis audio decoder
488 - Macromedia ADPCM decoder
489 - Duck TrueMotion 2 video decoder
490 - support for decoding FLX and DTA extensions in FLIC files
491 - H.264 custom quantization matrices support
492 - ffserver fixed, it should now be usable again
494 - Real Cooker audio decoder
495 - TrueSpeech audio decoder
496 - WMA2 audio decoder fixed, now all files should play correctly
497 - RealAudio 14.4 and 28.8 decoders fixed
499 - build system improvements
500 - tabs and trailing whitespace removed from the codebase
501 - CamStudio video decoder
502 - AIFF/AIFF-C audio format, encoding and decoding
503 - ADTS AAC file reading and writing
504 - Creative VOC file reading and writing
505 - American Laser Games multimedia (*.mm) playback system
506 - Zip Motion Blocks Video decoder
507 - improved Theora/VP3 decoder
508 - True Audio (TTA) decoder
509 - AVS demuxer and video decoder
511 - Smacker demuxer and decoder
512 - NuppelVideo/MythTV demuxer and RTjpeg decoder
514 - MPEG-2 intra VLC support
515 - MPEG-2 4:2:2 encoder
516 - Flash Screen Video decoder
518 - Chinese AVS decoder
521 - VC-1/WMV3/WMV9 video decoder
524 - VMware video decoder
527 - WavPack lossless audio decoder
528 - Targa (.TGA) picture decoder
529 - Vorbis audio encoder
530 - Delphine Software .cin demuxer/audio and video decoder
531 - Tiertex .seq demuxer/video decoder
533 - TIFF picture encoder and decoder
534 - GIF picture decoder
535 - Intel Music Coder decoder
536 - Zip Motion Blocks Video encoder
538 - Flash Screen Video encoder
539 - Theora encoding via libtheora
542 - GSM-MS encoder and decoder
544 - DXA demuxer and decoder
546 - Gamecube movie (.THP) playback system
547 - Blackfin optimizations
548 - Interplay C93 demuxer and video decoder
549 - Bethsoft VID demuxer and video decoder
552 - V.Flash PTX decoder
553 - RoQ muxer, RoQ audio encoder
554 - Renderware TXD demuxer and decoder
555 - extern C declarations for C++ removed from headers
556 - sws_flags command line option
560 - OS/2 support removed and restored again
563 - additional SPARC (VIS) optimizations
565 - slice-based parallel H.264 decoding
566 - Monkey's Audio demuxer and decoder
567 - AMV audio and video decoder
569 - H.264 PAFF decoding
570 - Nellymoser ASAO decoder
571 - Beam Software SIFF demuxer and decoder
572 - libvorbis Vorbis decoding removed in favor of native decoder
573 - IntraX8 (J-Frame) subdecoder for WMV2 and VC-1
574 - Ogg (Theora, Vorbis and FLAC) muxer
575 - The "device" muxers and demuxers are now in a new libavdevice library
576 - PC Paintbrush PCX decoder
577 - Sun Rasterfile decoder
578 - TechnoTrend PVA demuxer
579 - Linux Media Labs MPEG-4 (LMLM4) demuxer
580 - AVM2 (Flash 9) SWF muxer
581 - QT variant of IMA ADPCM encoder
583 - iPod/iPhone compatible mp4 muxer
585 - MSN TCP Webcam stream demuxer
586 - RL2 demuxer / decoder
589 - non-recursive Makefiles
591 - MAXIS EA XA (.xa) demuxer / decoder
595 - Electronic Arts CMV decoder
596 - Motion Pixels Video decoder
597 - Motion Pixels MVI demuxer
598 - removed animated GIF decoder/demuxer
599 - D-Cinema audio muxer
600 - Electronic Arts TGV decoder
601 - Apple Lossless Audio Codec (ALAC) encoder
603 - floating point PCM encoder/decoder
605 - DV100 AKA DVCPRO HD decoder and demuxer
606 - E-AC-3 support added to AC-3 decoder
607 - Nellymoser ASAO encoder
608 - ASS and SSA demuxer and muxer
609 - liba52 wrapper removed
610 - SVQ3 watermark decoding support
611 - Speex decoding via libspeex
612 - Electronic Arts TGQ decoder
614 - QCELP / PureVoice decoder
616 - hybrid WavPack support
617 - R3D REDCODE demuxer
618 - ALSA support for playback and record
619 - Electronic Arts TQI decoder
620 - OpenJPEG based JPEG 2000 decoder
621 - NC (NC4600) camera file demuxer
622 - Gopher client support
624 - generic metadata API
629 - DV encoder, DV muxer
630 - Microsoft RLE video decoder
631 - Microsoft Video-1 decoder
632 - Apple Animation (RLE) decoder
633 - Apple Graphics (SMC) decoder
634 - Apple Video (RPZA) decoder
636 - Sega FILM (CPK) file demuxer
637 - Westwood multimedia support (VQA & AUD files)
638 - Id Quake II CIN playback support
640 - FLIC playback support
641 - RealVideo 2.0 (RV20) decoder
642 - Duck TrueMotion v1 (DUCK) video decoder
643 - Sierra VMD demuxer and video decoder
644 - MSZH and ZLIB decoder support
648 - rate distortion optimal cbp support
649 - rate distorted optimal ac prediction for MPEG-4
650 - rate distorted optimal lambda->qp support
651 - AAC encoding with libfaac
652 - Sunplus JPEG codec (SP5X) support
653 - use Lagrange multipler instead of QP for ratecontrol
654 - Theora/VP3 decoding support
655 - XA and ADX ADPCM codecs
656 - export MPEG-2 active display area / pan scan
657 - Add support for configuring with IBM XLC
658 - floating point AAN DCT
659 - initial support for zygo video (not complete)
661 - new audio/video parser API
663 - av_read_frame() and av_seek_frame() support
664 - missing last frame fixes
665 - seek by mouse in ffplay
666 - noise reduction of DCT coefficients
667 - H.263 OBMC & 4MV support
668 - H.263 alternative inter vlc support
670 - H.263 slice structured mode
671 - interlaced DCT support for MPEG-2 encoding
672 - stuffing to stay above min_bitrate
673 - MB type & QP visualization
674 - frame stepping for ffplay
675 - interlaced motion estimation
676 - alternate scantable support
677 - SVCD scan offset support
680 - quantizer noise shaping
681 - G.726 ADPCM audio codec
683 - multithreaded/SMP motion estimation
684 - multithreaded/SMP encoding for MPEG-1/MPEG-2/MPEG-4/H.263
685 - multithreaded/SMP decoding for MPEG-2
687 - Metrowerks CodeWarrior suppport
688 - H.263+ custom pcf support
689 - nicer output for 'ffmpeg -formats'
691 - SGI image format, encoding and decoding
692 - H.264 loop filter support
693 - H.264 CABAC support
694 - nicer looking arrows for the motion vector visualization
695 - improved VCD support
696 - audio timestamp drift compensation
697 - MPEG-2 YUV 422/444 support
698 - polyphase kaiser windowed sinc and blackman nuttall windowed sinc audio resample
699 - better image scaling
701 - correctly interleave packets during encoding
702 - VIS optimized motion compensation
703 - intra_dc_precision>0 encoding support
704 - support reuse of motion vectors/MB types/field select values of the source video
705 - more accurate deblock filter
707 - many optimizations and bugfixes
708 - FunCom ISS audio file demuxer and according ADPCM decoding
713 - MPEG-2 video encoding (Michael)
714 - Id RoQ playback subsystem (Mike Melanson and Tim Ferguson)
715 - Wing Commander III Movie (.mve) file playback subsystem (Mike Melanson
717 - Xan DPCM audio decoder (Mario Brito)
718 - Interplay MVE playback subsystem (Mike Melanson)
719 - Duck DK3 and DK4 ADPCM audio decoders (Mike Melanson)
724 - RealAudio 1.0 (14_4) and 2.0 (28_8) native decoders. Author unknown, code from mplayerhq
725 (originally from public domain player for Amiga at http://www.honeypot.net/audio)
726 - current version now also compiles with older GCC (Fabrice)
727 - 4X multimedia playback system including 4xm file demuxer (Mike
728 Melanson), and 4X video and audio codecs (Michael)
729 - Creative YUV (CYUV) decoder (Mike Melanson)
730 - FFV1 codec (our very simple lossless intra only codec, compresses much better
731 than HuffYUV) (Michael)
732 - ASV1 (Asus), H.264, Intel indeo3 codecs have been added (various)
733 - tiny PNG encoder and decoder, tiny GIF decoder, PAM decoder (PPM with
734 alpha support), JPEG YUV colorspace support. (Fabrice Bellard)
735 - ffplay has been replaced with a newer version which uses SDL (optionally)
736 for multiplatform support (Fabrice)
737 - Sorenson Version 3 codec (SVQ3) support has been added (decoding only) - donated
739 - AMR format has been added (Johannes Carlsson)
740 - 3GP support has been added (Johannes Carlsson)
741 - VP3 codec has been added (Mike Melanson)
742 - more MPEG-1/2 fixes
743 - better multiplatform support, MS Visual Studio fixes (various)
744 - AltiVec optimizations (Magnus Damn and others)
745 - SH4 processor support has been added (BERO)
746 - new public interfaces (avcodec_get_pix_fmt) (Roman Shaposhnick)
747 - VOB streaming support (Brian Foley)
748 - better MP3 autodetection (Andriy Rysin)
749 - qpel encoding (Michael)
750 - 4mv+b frames encoding finally fixed (Michael)
751 - chroma ME (Michael)
752 - 5 comparison functions for ME (Michael)
753 - B-frame encoding speedup (Michael)
754 - WMV2 codec (unfinished - Michael)
755 - user specified diamond size for EPZS (Michael)
756 - Playstation STR playback subsystem, still experimental (Mike and Michael)
757 - ASV2 codec (Michael)
758 - CLJR decoder (Alex)
760 .. And lots more new enhancements and fixes.
765 - completely new integer only MPEG audio layer 1/2/3 decoder rewritten
767 - Recoded DCT and motion vector search with gcc (no longer depends on nasm)
768 - fix quantization bug in AC3 encoder
769 - added PCM codecs and format. Corrected WAV/AVI/ASF PCM issues
770 - added prototype ffplay program
771 - added GOB header parsing on H.263/H.263+ decoder (Juanjo)
772 - bug fix on MCBPC tables of H.263 (Juanjo)
773 - bug fix on DC coefficients of H.263 (Juanjo)
774 - added Advanced Prediction Mode on H.263/H.263+ decoder (Juanjo)
775 - now we can decode H.263 streams found in QuickTime files (Juanjo)
776 - now we can decode H.263 streams found in VIVO v1 files(Juanjo)
777 - preliminary RTP "friendly" mode for H.263/H.263+ coding. (Juanjo)
778 - added GOB header for H.263/H.263+ coding on RTP mode (Juanjo)
779 - now H.263 picture size is returned on the first decoded frame (Juanjo)
780 - added first regression tests
781 - added MPEG-2 TS demuxer
782 - new demux API for libav
783 - more accurate and faster IDCT (Michael)
784 - faster and entropy-controlled motion search (Michael)
785 - two pass video encoding (Michael)
786 - new video rate control (Michael)
787 - added MSMPEG4V1, MSMPEGV2 and WMV1 support (Michael)
788 - great performance improvement of video encoders and decoders (Michael)
789 - new and faster bit readers and vlc parsers (Michael)
790 - high quality encoding mode: tries all macroblock/VLC types (Michael)
791 - added DV video decoder
792 - preliminary RTP/RTSP support in ffserver and libavformat
793 - H.263+ AIC decoding/encoding support (Juanjo)
794 - VCD MPEG-PS mode (Juanjo)
795 - PSNR stuff (Juanjo)
796 - simple stats output (Juanjo)
797 - 16-bit and 15-bit RGB/BGR/GBR support (Bisqwit)
802 - some header fixes (Zdenek Kabelac <kabi at informatics.muni.cz>)
803 - many MMX optimizations (Nick Kurshev <nickols_k at mail.ru>)
804 - added configure system (actually a small shell script)
805 - added MPEG audio layer 1/2/3 decoding using LGPL'ed mpglib by
806 Michael Hipp (temporary solution - waiting for integer only
808 - fixed VIDIOCSYNC interrupt
809 - added Intel H.263 decoding support ('I263' AVI fourCC)
810 - added Real Video 1.0 decoding (needs further testing)
811 - simplified image formats again. Added PGM format (=grey
812 pgm). Renamed old PGM to PGMYUV.
813 - fixed msmpeg4 slice issues (tell me if you still find problems)
814 - fixed OpenDivX bugs with newer versions (added VOL header decoding)
815 - added support for MPlayer interface
816 - added macroblock skip optimization
817 - added MJPEG decoder
818 - added mmx/mmxext IDCT from libmpeg2
819 - added pgmyuvpipe, ppm, and ppm_pipe formats (original patch by Celer
820 <celer at shell.scrypt.net>)
821 - added pixel format conversion layer (e.g. for MJPEG or PPM)
822 - added deinterlacing option
824 - MPEG-4 vol header fixes (Jonathan Marsden <snmjbm at pacbell.net>)
825 - ARM optimizations (Lionel Ulmer <lionel.ulmer at free.fr>).
826 - Windows porting of file converter
827 - added MJPEG raw format (input/ouput)
828 - added JPEG image format support (input/output)
833 - fixed some std header definitions (Bjorn Lindgren
834 <bjorn.e.lindgren at telia.com>).
835 - added MPEG demuxer (MPEG-1 and 2 compatible).
837 - added prototype RM demuxer
838 - added AC3 decoding (done with libac3 by Aaron Holtzman)
839 - added decoding codec parameter guessing (.e.g. for MPEG, because the
840 header does not include them)
841 - fixed header generation in MPEG-1, AVI and ASF muxer: wmplayer can now
842 play them (only tested video)
843 - fixed H.263 white bug
844 - fixed phase rounding in img resample filter
845 - add MMX code for polyphase img resample filter
846 - added CPU autodetection
847 - added generic title/author/copyright/comment string handling (ASF and RM
849 - added SWF demux to extract MP3 track (not usable yet because no MP3
851 - added fractional frame rate support
852 - codecs are no longer searched by read_header() (should fix ffserver
858 - BGR24 patch (initial patch by Jeroen Vreeken <pe1rxq at amsat.org>)
859 - fixed raw yuv output
860 - added motion rounding support in MPEG-4
861 - fixed motion bug rounding in MSMPEG4
862 - added B-frame handling in video core
863 - added full MPEG-1 decoding support
864 - added partial (frame only) MPEG-2 support
865 - changed the FOURCC code for H.263 to "U263" to be able to see the
866 +AVI/H.263 file with the UB Video H.263+ decoder. MPlayer works with
867 this +codec ;) (JuanJo).
868 - Halfpel motion estimation after MB type selection (JuanJo)
869 - added pgm and .Y.U.V output format
870 - suppressed 'img:' protocol. Simply use: /tmp/test%d.[pgm|Y] as input or
872 - added pgmpipe I/O format (original patch from Martin Aumueller
873 <lists at reserv.at>, but changed completely since we use a format
874 instead of a protocol)
879 - added H.263/MPEG-4/MSMPEG4 decoding support. MPEG-4 decoding support
880 (for OpenDivX) is almost complete: 8x8 MVs and rounding are
881 missing. MSMPEG4 support is complete.
882 - added prototype MPEG-1 decoder. Only I- and P-frames handled yet (it
883 can decode ffmpeg MPEGs :-)).
884 - added libavcodec API documentation (see apiexample.c).
885 - fixed image polyphase bug (the bottom of some images could be
887 - added support for non clipped motion vectors (decoding only)
888 and image sizes non-multiple of 16
889 - added support for AC prediction (decoding only)
890 - added file overwrite confirmation (can be disabled with -y)
891 - added custom size picture to H.263 using H.263+ (Juanjo)
896 - added MSMPEG4 (aka DivX) compatible encoder. Changed default codec
897 of AVI and ASF to DIV3.
898 - added -me option to set motion estimation method
899 (default=log). suppressed redundant -hq option.
900 - added options -acodec and -vcodec to force a given codec (useful for
903 - improved dct_quantize speed
904 - factorized some motion estimation code
909 - removing grab code from ffserver and moved it to ffmpeg. Added
910 multistream support to ffmpeg.
911 - added timeshifting support for live feeds (option ?date=xxx in the
913 - added high quality image resize code with polyphase filter (need
914 mmx/see optimization). Enable multiple image size support in ffserver.
915 - added multi live feed support in ffserver
916 - suppressed master feature from ffserver (it should be done with an
917 external program which opens the .ffm url and writes it to another
919 - added preliminary support for video stream parsing (WAV and AVI half
920 done). Added proper support for audio/video file conversion in
922 - added preliminary support for video file sending from ffserver
923 - redesigning I/O subsystem: now using URL based input and output
925 - added WAV format support
926 - added "tty user interface" to ffmpeg to stop grabbing gracefully
927 - added MMX/SSE optimizations to SAD (Sums of Absolutes Differences)
928 (Juan J. Sierralta P. a.k.a. "Juanjo" <juanjo at atmlab.utfsm.cl>)
929 - added MMX DCT from mpeg2_movie 1.5 (Juanjo)
930 - added new motion estimation algorithms, log and phods (Juanjo)
931 - changed directories: libav for format handling, libavcodec for
937 - added stereo in MPEG audio encoder
942 - added 'high quality' mode which use motion vectors. It can be used in
943 real time at low resolution.
944 - fixed rounding problems which caused quality problems at high
945 bitrates and large GOP size
948 version 0.3.2: small fixes
954 version 0.3.1: added avi/divx support
957 - added MPEG-4 codec compatible with OpenDivX. It is based on the H.263 codec
958 - added sound for flash format (not tested)
961 version 0.3: initial public release