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