1 Entries are sorted chronologically from oldest to youngest within each release,
2 releases are sorted from youngest to oldest.
11 - support ID3v2 tags in ASF files
12 - reference-counting for AVFrame and AVPacket data
13 - avconv now fails when input options are used for output file
15 - avconv options -filter_script and -filter_complex_script, which allow a
16 filtergraph description to be read from a file
17 - uniform options syntax across all filters
20 - asetpts filter (same as setpts, but for audio)
21 - trim and atrim filters
22 - avconv -t and -ss (output-only) options are now sample-accurate when
24 - Matroska muxer can now put the index at the beginning of the file.
25 - avconv -deinterlace option removed, the yadif filter should be used instead
26 - Apple Intermediate Codec decoder
27 - Escape 130 video decoder
28 - support for slice multithreading in libavfilter
29 - VC-1 interlaced B-frame support
30 - support for WavPack muxing (raw and in Matroska)
32 - WavPack encoding through libwavpack
33 - Added the -n parameter to avconv
35 - when transcoding with avconv (i.e. not streamcopying), -ss is now accurate
36 even when used as an input option. Previous behavior can be restored with
37 the -noaccurate_seek option.
38 - avconv -t option can now be used for inputs, to limit the duration of
39 data read from an input file
40 - Voxware MetaSound decoder
42 - Error Resilient AAC syntax (ER AAC LC) decoding
43 - Low Delay AAC (ER AAC LD) decoding
44 - mux chapters in ASF files
45 - Opus in Ogg demuxing
46 - Enhanced Low Delay AAC (ER AAC ELD) decoding (no LD SBR support)
48 - HNM version 4 demuxer and video decoder
50 - raw HEVC, HEVC in MOV/MP4, HEVC in Matroska, HEVC in MPEG-TS demuxing
51 - remove avplay -vismv option, which has not worked for a long time
53 - setsar/setdar filters now support variables in ratio expressions
54 - dar variable in the scale filter now returns the actual DAR (i.e. a * sar)
56 - support for decoding through VDPAU in avconv (the -hwaccel option)
57 - remove mp3_header_(de)compress bitstream filters
58 - stereoscopic 3d metadata handling
59 - png standalone parser
60 - WebP encoding via libwebp
63 - Mirillis FIC video decoder
69 - av_basename and av_dirname
70 - adobe and limelight publisher authentication in RTMP
71 - VDPAU hardware acceleration through normal hwaccel
76 - ashowinfo audio filter
77 - 24-bit FLAC encoding
79 - deprecated the avconv -vol option. the volume filter is to be used instead.
80 - multi-channel ALAC encoding up to 7.1
81 - TAK demuxer, parser, and decoder
82 - adaptive frame-level multithreading for H.264
86 - metadata (INFO tag) support in WAV muxer
87 - support for building DLLs using MSVC
88 - remove avserver daemon mode
89 - support building on the Plan 9 operating system
90 - ffv1: support version 1.3
95 - XWD encoder and decoder
96 - Support for fragmentation in the mov/mp4 muxer
97 - ISMV (Smooth Streaming) muxer
98 - CDXL demuxer and decoder
99 - Apple ProRes encoder
100 - Sun Rasterfile Encoder
102 - ID3v2 attached pictures reading and writing
103 - WMA Lossless decoder
105 - RealAudio Lossless decoder
107 - drop support for avconv without libavfilter
108 - add libavresample audio conversion library
109 - audio filters support in libavfilter and avconv
113 - avprobe output is now standard INI or JSON. The old format can still
114 be used with -of old.
115 - Indeo Audio decoder
116 - channelsplit audio filter
117 - RTMPT protocol support
118 - iLBC encoding/decoding via libilbc
119 - Microsoft Screen 1 decoder
121 - audio channel mapping filter
122 - Microsoft ATC Screen decoder
124 - TechSmith Screen Codec 2 decoder
125 - AAC encoding via libfdk-aac
126 - Microsoft Expression Encoder Screen decoder
127 - RTMPS protocol support
128 - RTMPTS protocol support
129 - JPEG 2000 encoding support through OpenJPEG
130 - G.723.1 demuxer and decoder
131 - RTMPE protocol support
132 - RTMPTE protocol support
133 - Canopus Lossless Codec decoder
134 - avconv -shortest option is now per-output file,
135 -pass and -passlogfile are now per-output stream
137 - Microsoft Screen 2 decoder
138 - RTP depacketization of JPEG
139 - Smooth Streaming live segmenter muxer
140 - RTP packetization of JPEG
141 - Opus decoder and encoder using libopus
142 - remove -same_quant, it hasn't worked for years
143 - support for building with MSVC
154 - Automatic thread count based on detection number of (available) CPU cores
155 - Deprecate libpostproc. If desired, the switch --enable-postproc will
156 enable it but it may be removed in a later Libav release.
157 - rv34: frame-level multi-threading
158 - optimized iMDCT transform on x86 using SSE for for mpegaudiodec
164 - Flash Screen Video 2 decoder
165 - ffplay/ffprobe/ffserver renamed to avplay/avprobe/avserver
166 - ffmpeg deprecated, added avconv, which is almost the same for now, except
167 for a few incompatible changes in the options, which will hopefully make them
168 easier to use. The changes are:
169 * The options placement is now strictly enforced! While in theory the
170 options for ffmpeg should be given in [input options] -i INPUT [output
171 options] OUTPUT order, in practice it was possible to give output options
172 before the -i and it mostly worked. Except when it didn't - the behavior was
173 a bit inconsistent. In avconv, it is not possible to mix input and output
174 options. All non-global options are reset after an input or output filename.
175 * All per-file options are now truly per-file - they apply only to the next
176 input or output file and specifying different values for different files
177 will now work properly (notably -ss and -t options).
178 * All per-stream options are now truly per-stream - it is possible to
179 specify which stream(s) should a given option apply to. See the Stream
180 specifiers section in the avconv manual for details.
181 * In ffmpeg some options (like -newvideo/-newaudio/...) are irregular in the
182 sense that they're specified after the output filename instead of before,
183 like all other options. In avconv this irregularity is removed, all options
184 apply to the next input or output file.
185 * -newvideo/-newaudio/-newsubtitle options were removed. Not only were they
186 irregular and highly confusing, they were also redundant. In avconv the -map
187 option will create new streams in the output file and map input streams to
188 them. E.g. avconv -i INPUT -map 0 OUTPUT will create an output stream for
189 each stream in the first input file.
190 * The -map option now has slightly different and more powerful syntax:
191 + Colons (':') are used to separate file index/stream type/stream index
192 instead of dots. Comma (',') is used to separate the sync stream instead
193 of colon.. This is done for consistency with other options.
194 + It's possible to specify stream type. E.g. -map 0:a:2 creates an
195 output stream from the third input audio stream.
196 + Omitting the stream index now maps all the streams of the given type,
197 not just the first. E.g. -map 0:s creates output streams for all the
198 subtitle streams in the first input file.
199 + Since -map can now match multiple streams, negative mappings were
200 introduced. Negative mappings disable some streams from an already
201 defined map. E.g. '-map 0 -map -0:a:1' means 'create output streams for
202 all the stream in the first input file, except for the second audio
204 * There is a new option -c (or -codec) for choosing the decoder/encoder to
205 use, which allows to precisely specify target stream(s) consistently with
206 other options. E.g. -c:v lib264 sets the codec for all video streams, -c:a:0
207 libvorbis sets the codec for the first audio stream and -c copy copies all
208 the streams without reencoding. Old -vcodec/-acodec/-scodec options are now
210 * It is now possible to precisely specify which stream should an AVOption
211 apply to. E.g. -b:v:0 2M sets the bitrate for the first video stream, while
212 -b:a 128k sets the bitrate for all audio streams. Note that the old -ab 128k
213 syntax is deprecated and will stop working soon.
214 * -map_chapters now takes only an input file index and applies to the next
215 output file. This is consistent with how all the other options work.
216 * -map_metadata now takes only an input metadata specifier and applies to
217 the next output file. Output metadata specifier is now part of the option
218 name, similarly to the AVOptions/map/codec feature above.
219 * -metadata can now be used to set metadata on streams and chapters, e.g.
220 -metadata:s:1 language=eng sets the language of the first stream to 'eng'.
221 This made -vlang/-alang/-slang options redundant, so they were removed.
222 * -qscale option now uses stream specifiers and applies to all streams, not
223 just video. I.e. plain -qscale number would now apply to all streams. To get
224 the old behavior, use -qscale:v. Also there is now a shortcut -q for -qscale
225 and -aq is now an alias for -q:a.
226 * -vbsf/-absf/-sbsf options were removed and replaced by a -bsf option which
227 uses stream specifiers. Use -bsf:v/a/s instead of the old options.
228 * -itsscale option now uses stream specifiers, so its argument is only the
230 * -intra option was removed, use -g 0 for the same effect.
231 * -psnr option was removed, use -flags +psnr for the same effect.
232 * -vf option is now an alias to the new -filter option, which uses stream specifiers.
233 * -vframes/-aframes/-dframes options are now aliases to the new -frames option.
234 * -vtag/-atag/-stag options are now aliases to the new -tag option.
236 - Windows Media Image decoder
240 - libcdio-paranoia input device for audio CD grabbing
242 - Apple ProRes decoder
243 - CELT in Ogg demuxing
244 - VC-1 interlaced decoding
245 - lut, lutrgb, and lutyuv filters
248 - Speex encoding via libspeex
249 - 4:2:2 H.264 decoding support
250 - 4:2:2 and 4:4:4 H.264 encoding with libx264
251 - Pulseaudio input device
252 - replacement Indeo 3 decoder
253 - TLS/SSL and HTTPS protocol support
254 - AVOptions API rewritten and documented
255 - most of CODEC_FLAG2_*, some CODEC_FLAG_* and many codec-specific fields in
256 AVCodecContext deprecated. Codec private options should be used instead.
257 - Properly working defaults in libx264 wrapper, support for native presets.
258 - Encrypted OMA files support
259 - Discworld II BMV decoding support
261 - OS X Video Decoder Acceleration (VDA) support
262 - CRI ADX audio format muxer and demuxer
263 - Playstation Portable PMP format demuxer
264 - PCM format support in OMA demuxer
266 - Dxtory capture format decoder
267 - v410 QuickTime uncompressed 4:4:4 10-bit encoder and decoder
269 - Simple segmenting muxer
276 - E-AC-3 audio encoder
277 - ac3enc: add channel coupling support
278 - floating-point sample format support for (E-)AC-3, DCA, AAC, Vorbis decoders
279 - H.264/MPEG frame-level multithreading
280 - av_metadata_* functions renamed to av_dict_* and moved to libavutil
281 - 4:4:4 H.264 decoding support
282 - 10-bit H.264 optimizations for x86
283 - bump libswscale for recently reported ABI break
288 - VP8 frame-level multithreading
289 - NEON optimizations for VP8
290 - removed a lot of deprecated API cruft
291 - FFT and IMDCT optimizations for AVX (Sandy Bridge) processors
293 - SMPTE 302M AES3 audio decoder
294 - ffmpeg no longer quits after the 'q' key is pressed; use 'ctrl+c' instead
295 - 9bit and 10bit per sample support in the H.264 decoder
300 - WebM support in Matroska de/muxer
301 - low overhead Ogg muxing
303 - VP8 de/encoding via libvpx
304 - Demuxer for On2's IVF format
305 - Pictor/PC Paint decoder
307 - libfaad2 wrapper removed
308 - DTS-ES extension (XCh) decoding support
310 - RTSP tunneling over HTTP
311 - RTP depacketization of SVQ3
312 - -strict inofficial replaced by -strict unofficial
313 - ffplay -exitonkeydown and -exitonmousedown options added
314 - native GSM / GSM MS decoder
315 - RTP depacketization of QDM2
316 - ANSI/ASCII art playback system
317 - Lego Mindstorms RSO de/muxer
318 - SubRip subtitle file muxer and demuxer
319 - Chinese AVS encoding via libxavs
320 - ffprobe -show_packets option added
321 - RTP packetization of Theora and Vorbis
322 - RTP depacketization of MP4A-LATM
323 - RTP packetization and depacketization of VP8
325 - Apple HTTP Live Streaming demuxer
328 - G.722 ADPCM audio encoder/decoder
331 - frei0r wrapper filter
332 - change crop filter syntax to width:height:x:y
333 - make the crop filter accept parametric expressions
334 - make ffprobe accept AVFormatContext options
337 - Demuxer for Leitch/Harris' VR native stream format (LXF)
338 - RTP depacketization of the X-QT QuickTime format
339 - SAP (Session Announcement Protocol, RFC 2974) muxer and demuxer
341 - ffmpeg -crop* options removed
342 - transpose filter added
343 - ffmpeg -force_key_frames option added
344 - demuxer for receiving raw rtp:// URLs without an SDP description
345 - single stream LATM/LOAS decoder
346 - setpts filter added
347 - Win64 support for optimized x86 assembly functions
348 - MJPEG/AVI1 to JPEG/JFIF bitstream filter
349 - ASS subtitle encoder and decoder
350 - IEC 61937 encapsulation for E-AC-3, TrueHD, DTS-HD (for HDMI passthrough)
351 - overlay filter added
352 - rename aspect filter to setdar, and pixelaspect to setsar
354 - Mobotix .mxg demuxer
355 - frei0r source added
356 - hqdn3d filter added
357 - RTP depacketization of QCELP
359 - gradfun filter added
361 - replace the ocv_smooth filter with a more generic ocv filter
362 - Windows Televison (WTV) demuxer
363 - FFmpeg metadata format muxer and demuxer
364 - SubRip (srt) subtitle decoder
365 - floating-point AC-3 encoder added
367 - ffmpeg -copytb option added
369 - Wing Commander IV movies decoder added
371 - Bink version 'b' audio and video decoder
372 - Bitmap Brothers JV playback system
373 - Apple HTTP Live Streaming protocol handler
374 - sndio support for playback and record
375 - Linux framebuffer input device added
376 - Chronomaster DFA decoder
377 - Mobotix MxPEG decoder
378 - AAC encoding via libvo-aacenc
379 - AMR-WB encoding via libvo-amrwbenc
381 - fieldorder video filter added
386 - PB-frame decoding for H.263
387 - deprecated vhook subsystem removed
388 - deprecated old scaler removed
390 - Alpha channel scaler
392 - RTP packetization of H.263
393 - RTP packetization of AMR
394 - RTP depacketization of Vorbis
395 - CorePNG decoding support
396 - Cook multichannel decoding support
397 - introduced avlanguage helpers in libavformat
398 - 8088flex TMV demuxer and decoder
399 - per-stream language-tags extraction in asfdec
400 - V210 decoder and encoder
401 - remaining GPL parts in AC-3 decoder converted to LGPL
403 - SoX native format muxer and demuxer
404 - AMR-NB decoding/encoding, AMR-WB decoding via OpenCORE libraries
406 - Electronic Arts Madcow decoder
407 - DivX (XSUB) subtitle encoder
408 - nonfree libamr support for AMR-NB/WB decoding/encoding removed
409 - experimental AAC encoder
410 - RTP depacketization of ASF and RTSP from WMS servers
411 - RTMP support in libavformat
412 - noX handling for OPT_BOOL X options
414 - IEC-61937 compatible Muxer
416 - Bluray (PGS) subtitle decoder
417 - LPCM support in MPEG-TS (HDMV RID as found on Blu-ray disks)
419 - Core Audio Format demuxer
421 - MD STUDIO audio demuxer
422 - RF64 support in WAV demuxer
423 - MPEG-4 Audio Lossless Coding (ALS) decoder
424 - -formats option split into -formats, -codecs, -bsfs, and -protocols
426 - CDG demuxer and decoder
428 - Auravision Aura 1 and 2 decoders
429 - Deluxe Paint Animation playback system
431 - Adobe Filmstrip muxer and demuxer
432 - RTP depacketization of H.263
433 - Bink demuxer and audio/video decoders
434 - enable symbol versioning by default for linkers that support it
435 - IFF PBM/ILBM bitmap decoder
438 - RTP depacketization of AMR
444 - Kega Game Video (KGV1) decoder
445 - VorbisComment writing for FLAC, Ogg FLAC and Ogg Speex files
446 - RTP depacketization of Theora
447 - HTTP Digest authentication
448 - RTMP/RTMPT/RTMPS/RTMPE/RTMPTE protocol support via librtmp
449 - Psygnosis YOP demuxer and video decoder
450 - spectral extension support in the E-AC-3 decoder
451 - unsharp video filter
452 - RTP hinting in the mov/3gp/mp4 muxer
453 - Dirac in Ogg demuxing
454 - seek to keyframes in Ogg
455 - 4:2:2 and 4:4:4 Theora decoding
456 - 35% faster VP3/Theora decoding
457 - faster AAC decoding
458 - faster H.264 decoding
459 - RealAudio 1.0 (14.4K) encoder
464 - DV50 AKA DVCPRO50 encoder, decoder, muxer and demuxer
465 - TechSmith Camtasia (TSCC) video decoder
466 - IBM Ultimotion (ULTI) video decoder
467 - Sierra Online audio file demuxer and decoder
468 - Apple QuickDraw (qdrw) video decoder
469 - Creative ADPCM audio decoder (16 bits as well as 8 bits schemes)
470 - Electronic Arts Multimedia (WVE/UV2/etc.) file demuxer
471 - Miro VideoXL (VIXL) video decoder
472 - H.261 video encoder
474 - Nullsoft Video (NSV) file demuxer
475 - Shorten audio decoder
477 - Apple Lossless Audio Codec (ALAC) decoder
478 - Winnov WNV1 video decoder
479 - Autodesk Animator Studio Codec (AASC) decoder
480 - Indeo 2 video decoder
481 - Fraps FPS1 video decoder
482 - Snow video encoder/decoder
483 - Sonic audio encoder/decoder
484 - Vorbis audio decoder
485 - Macromedia ADPCM decoder
486 - Duck TrueMotion 2 video decoder
487 - support for decoding FLX and DTA extensions in FLIC files
488 - H.264 custom quantization matrices support
489 - ffserver fixed, it should now be usable again
491 - Real Cooker audio decoder
492 - TrueSpeech audio decoder
493 - WMA2 audio decoder fixed, now all files should play correctly
494 - RealAudio 14.4 and 28.8 decoders fixed
496 - build system improvements
497 - tabs and trailing whitespace removed from the codebase
498 - CamStudio video decoder
499 - AIFF/AIFF-C audio format, encoding and decoding
500 - ADTS AAC file reading and writing
501 - Creative VOC file reading and writing
502 - American Laser Games multimedia (*.mm) playback system
503 - Zip Motion Blocks Video decoder
504 - improved Theora/VP3 decoder
505 - True Audio (TTA) decoder
506 - AVS demuxer and video decoder
508 - Smacker demuxer and decoder
509 - NuppelVideo/MythTV demuxer and RTjpeg decoder
511 - MPEG-2 intra VLC support
512 - MPEG-2 4:2:2 encoder
513 - Flash Screen Video decoder
515 - Chinese AVS decoder
518 - VC-1/WMV3/WMV9 video decoder
521 - VMware video decoder
524 - WavPack lossless audio decoder
525 - Targa (.TGA) picture decoder
526 - Vorbis audio encoder
527 - Delphine Software .cin demuxer/audio and video decoder
528 - Tiertex .seq demuxer/video decoder
530 - TIFF picture encoder and decoder
531 - GIF picture decoder
532 - Intel Music Coder decoder
533 - Zip Motion Blocks Video encoder
535 - Flash Screen Video encoder
536 - Theora encoding via libtheora
539 - GSM-MS encoder and decoder
541 - DXA demuxer and decoder
543 - Gamecube movie (.THP) playback system
544 - Blackfin optimizations
545 - Interplay C93 demuxer and video decoder
546 - Bethsoft VID demuxer and video decoder
549 - V.Flash PTX decoder
550 - RoQ muxer, RoQ audio encoder
551 - Renderware TXD demuxer and decoder
552 - extern C declarations for C++ removed from headers
553 - sws_flags command line option
557 - OS/2 support removed and restored again
560 - additional SPARC (VIS) optimizations
562 - slice-based parallel H.264 decoding
563 - Monkey's Audio demuxer and decoder
564 - AMV audio and video decoder
566 - H.264 PAFF decoding
567 - Nellymoser ASAO decoder
568 - Beam Software SIFF demuxer and decoder
569 - libvorbis Vorbis decoding removed in favor of native decoder
570 - IntraX8 (J-Frame) subdecoder for WMV2 and VC-1
571 - Ogg (Theora, Vorbis and FLAC) muxer
572 - The "device" muxers and demuxers are now in a new libavdevice library
573 - PC Paintbrush PCX decoder
574 - Sun Rasterfile decoder
575 - TechnoTrend PVA demuxer
576 - Linux Media Labs MPEG-4 (LMLM4) demuxer
577 - AVM2 (Flash 9) SWF muxer
578 - QT variant of IMA ADPCM encoder
580 - iPod/iPhone compatible mp4 muxer
582 - MSN TCP Webcam stream demuxer
583 - RL2 demuxer / decoder
586 - non-recursive Makefiles
588 - MAXIS EA XA (.xa) demuxer / decoder
592 - Electronic Arts CMV decoder
593 - Motion Pixels Video decoder
594 - Motion Pixels MVI demuxer
595 - removed animated GIF decoder/demuxer
596 - D-Cinema audio muxer
597 - Electronic Arts TGV decoder
598 - Apple Lossless Audio Codec (ALAC) encoder
600 - floating point PCM encoder/decoder
602 - DV100 AKA DVCPRO HD decoder and demuxer
603 - E-AC-3 support added to AC-3 decoder
604 - Nellymoser ASAO encoder
605 - ASS and SSA demuxer and muxer
606 - liba52 wrapper removed
607 - SVQ3 watermark decoding support
608 - Speex decoding via libspeex
609 - Electronic Arts TGQ decoder
611 - QCELP / PureVoice decoder
613 - hybrid WavPack support
614 - R3D REDCODE demuxer
615 - ALSA support for playback and record
616 - Electronic Arts TQI decoder
617 - OpenJPEG based JPEG 2000 decoder
618 - NC (NC4600) camera file demuxer
619 - Gopher client support
621 - generic metadata API
626 - DV encoder, DV muxer
627 - Microsoft RLE video decoder
628 - Microsoft Video-1 decoder
629 - Apple Animation (RLE) decoder
630 - Apple Graphics (SMC) decoder
631 - Apple Video (RPZA) decoder
633 - Sega FILM (CPK) file demuxer
634 - Westwood multimedia support (VQA & AUD files)
635 - Id Quake II CIN playback support
637 - FLIC playback support
638 - RealVideo 2.0 (RV20) decoder
639 - Duck TrueMotion v1 (DUCK) video decoder
640 - Sierra VMD demuxer and video decoder
641 - MSZH and ZLIB decoder support
645 - rate distortion optimal cbp support
646 - rate distorted optimal ac prediction for MPEG-4
647 - rate distorted optimal lambda->qp support
648 - AAC encoding with libfaac
649 - Sunplus JPEG codec (SP5X) support
650 - use Lagrange multipler instead of QP for ratecontrol
651 - Theora/VP3 decoding support
652 - XA and ADX ADPCM codecs
653 - export MPEG-2 active display area / pan scan
654 - Add support for configuring with IBM XLC
655 - floating point AAN DCT
656 - initial support for zygo video (not complete)
658 - new audio/video parser API
660 - av_read_frame() and av_seek_frame() support
661 - missing last frame fixes
662 - seek by mouse in ffplay
663 - noise reduction of DCT coefficients
664 - H.263 OBMC & 4MV support
665 - H.263 alternative inter vlc support
667 - H.263 slice structured mode
668 - interlaced DCT support for MPEG-2 encoding
669 - stuffing to stay above min_bitrate
670 - MB type & QP visualization
671 - frame stepping for ffplay
672 - interlaced motion estimation
673 - alternate scantable support
674 - SVCD scan offset support
677 - quantizer noise shaping
678 - G.726 ADPCM audio codec
680 - multithreaded/SMP motion estimation
681 - multithreaded/SMP encoding for MPEG-1/MPEG-2/MPEG-4/H.263
682 - multithreaded/SMP decoding for MPEG-2
684 - Metrowerks CodeWarrior suppport
685 - H.263+ custom pcf support
686 - nicer output for 'ffmpeg -formats'
688 - SGI image format, encoding and decoding
689 - H.264 loop filter support
690 - H.264 CABAC support
691 - nicer looking arrows for the motion vector visualization
692 - improved VCD support
693 - audio timestamp drift compensation
694 - MPEG-2 YUV 422/444 support
695 - polyphase kaiser windowed sinc and blackman nuttall windowed sinc audio resample
696 - better image scaling
698 - correctly interleave packets during encoding
699 - VIS optimized motion compensation
700 - intra_dc_precision>0 encoding support
701 - support reuse of motion vectors/MB types/field select values of the source video
702 - more accurate deblock filter
704 - many optimizations and bugfixes
705 - FunCom ISS audio file demuxer and according ADPCM decoding
710 - MPEG-2 video encoding (Michael)
711 - Id RoQ playback subsystem (Mike Melanson and Tim Ferguson)
712 - Wing Commander III Movie (.mve) file playback subsystem (Mike Melanson
714 - Xan DPCM audio decoder (Mario Brito)
715 - Interplay MVE playback subsystem (Mike Melanson)
716 - Duck DK3 and DK4 ADPCM audio decoders (Mike Melanson)
721 - RealAudio 1.0 (14_4) and 2.0 (28_8) native decoders. Author unknown, code from mplayerhq
722 (originally from public domain player for Amiga at http://www.honeypot.net/audio)
723 - current version now also compiles with older GCC (Fabrice)
724 - 4X multimedia playback system including 4xm file demuxer (Mike
725 Melanson), and 4X video and audio codecs (Michael)
726 - Creative YUV (CYUV) decoder (Mike Melanson)
727 - FFV1 codec (our very simple lossless intra only codec, compresses much better
728 than HuffYUV) (Michael)
729 - ASV1 (Asus), H.264, Intel indeo3 codecs have been added (various)
730 - tiny PNG encoder and decoder, tiny GIF decoder, PAM decoder (PPM with
731 alpha support), JPEG YUV colorspace support. (Fabrice Bellard)
732 - ffplay has been replaced with a newer version which uses SDL (optionally)
733 for multiplatform support (Fabrice)
734 - Sorenson Version 3 codec (SVQ3) support has been added (decoding only) - donated
736 - AMR format has been added (Johannes Carlsson)
737 - 3GP support has been added (Johannes Carlsson)
738 - VP3 codec has been added (Mike Melanson)
739 - more MPEG-1/2 fixes
740 - better multiplatform support, MS Visual Studio fixes (various)
741 - AltiVec optimizations (Magnus Damn and others)
742 - SH4 processor support has been added (BERO)
743 - new public interfaces (avcodec_get_pix_fmt) (Roman Shaposhnick)
744 - VOB streaming support (Brian Foley)
745 - better MP3 autodetection (Andriy Rysin)
746 - qpel encoding (Michael)
747 - 4mv+b frames encoding finally fixed (Michael)
748 - chroma ME (Michael)
749 - 5 comparison functions for ME (Michael)
750 - B-frame encoding speedup (Michael)
751 - WMV2 codec (unfinished - Michael)
752 - user specified diamond size for EPZS (Michael)
753 - Playstation STR playback subsystem, still experimental (Mike and Michael)
754 - ASV2 codec (Michael)
755 - CLJR decoder (Alex)
757 .. And lots more new enhancements and fixes.
762 - completely new integer only MPEG audio layer 1/2/3 decoder rewritten
764 - Recoded DCT and motion vector search with gcc (no longer depends on nasm)
765 - fix quantization bug in AC3 encoder
766 - added PCM codecs and format. Corrected WAV/AVI/ASF PCM issues
767 - added prototype ffplay program
768 - added GOB header parsing on H.263/H.263+ decoder (Juanjo)
769 - bug fix on MCBPC tables of H.263 (Juanjo)
770 - bug fix on DC coefficients of H.263 (Juanjo)
771 - added Advanced Prediction Mode on H.263/H.263+ decoder (Juanjo)
772 - now we can decode H.263 streams found in QuickTime files (Juanjo)
773 - now we can decode H.263 streams found in VIVO v1 files(Juanjo)
774 - preliminary RTP "friendly" mode for H.263/H.263+ coding. (Juanjo)
775 - added GOB header for H.263/H.263+ coding on RTP mode (Juanjo)
776 - now H.263 picture size is returned on the first decoded frame (Juanjo)
777 - added first regression tests
778 - added MPEG-2 TS demuxer
779 - new demux API for libav
780 - more accurate and faster IDCT (Michael)
781 - faster and entropy-controlled motion search (Michael)
782 - two pass video encoding (Michael)
783 - new video rate control (Michael)
784 - added MSMPEG4V1, MSMPEGV2 and WMV1 support (Michael)
785 - great performance improvement of video encoders and decoders (Michael)
786 - new and faster bit readers and vlc parsers (Michael)
787 - high quality encoding mode: tries all macroblock/VLC types (Michael)
788 - added DV video decoder
789 - preliminary RTP/RTSP support in ffserver and libavformat
790 - H.263+ AIC decoding/encoding support (Juanjo)
791 - VCD MPEG-PS mode (Juanjo)
792 - PSNR stuff (Juanjo)
793 - simple stats output (Juanjo)
794 - 16-bit and 15-bit RGB/BGR/GBR support (Bisqwit)
799 - some header fixes (Zdenek Kabelac <kabi at informatics.muni.cz>)
800 - many MMX optimizations (Nick Kurshev <nickols_k at mail.ru>)
801 - added configure system (actually a small shell script)
802 - added MPEG audio layer 1/2/3 decoding using LGPL'ed mpglib by
803 Michael Hipp (temporary solution - waiting for integer only
805 - fixed VIDIOCSYNC interrupt
806 - added Intel H.263 decoding support ('I263' AVI fourCC)
807 - added Real Video 1.0 decoding (needs further testing)
808 - simplified image formats again. Added PGM format (=grey
809 pgm). Renamed old PGM to PGMYUV.
810 - fixed msmpeg4 slice issues (tell me if you still find problems)
811 - fixed OpenDivX bugs with newer versions (added VOL header decoding)
812 - added support for MPlayer interface
813 - added macroblock skip optimization
814 - added MJPEG decoder
815 - added mmx/mmxext IDCT from libmpeg2
816 - added pgmyuvpipe, ppm, and ppm_pipe formats (original patch by Celer
817 <celer at shell.scrypt.net>)
818 - added pixel format conversion layer (e.g. for MJPEG or PPM)
819 - added deinterlacing option
821 - MPEG-4 vol header fixes (Jonathan Marsden <snmjbm at pacbell.net>)
822 - ARM optimizations (Lionel Ulmer <lionel.ulmer at free.fr>).
823 - Windows porting of file converter
824 - added MJPEG raw format (input/ouput)
825 - added JPEG image format support (input/output)
830 - fixed some std header definitions (Bjorn Lindgren
831 <bjorn.e.lindgren at telia.com>).
832 - added MPEG demuxer (MPEG-1 and 2 compatible).
834 - added prototype RM demuxer
835 - added AC3 decoding (done with libac3 by Aaron Holtzman)
836 - added decoding codec parameter guessing (.e.g. for MPEG, because the
837 header does not include them)
838 - fixed header generation in MPEG-1, AVI and ASF muxer: wmplayer can now
839 play them (only tested video)
840 - fixed H.263 white bug
841 - fixed phase rounding in img resample filter
842 - add MMX code for polyphase img resample filter
843 - added CPU autodetection
844 - added generic title/author/copyright/comment string handling (ASF and RM
846 - added SWF demux to extract MP3 track (not usable yet because no MP3
848 - added fractional frame rate support
849 - codecs are no longer searched by read_header() (should fix ffserver
855 - BGR24 patch (initial patch by Jeroen Vreeken <pe1rxq at amsat.org>)
856 - fixed raw yuv output
857 - added motion rounding support in MPEG-4
858 - fixed motion bug rounding in MSMPEG4
859 - added B-frame handling in video core
860 - added full MPEG-1 decoding support
861 - added partial (frame only) MPEG-2 support
862 - changed the FOURCC code for H.263 to "U263" to be able to see the
863 +AVI/H.263 file with the UB Video H.263+ decoder. MPlayer works with
864 this +codec ;) (JuanJo).
865 - Halfpel motion estimation after MB type selection (JuanJo)
866 - added pgm and .Y.U.V output format
867 - suppressed 'img:' protocol. Simply use: /tmp/test%d.[pgm|Y] as input or
869 - added pgmpipe I/O format (original patch from Martin Aumueller
870 <lists at reserv.at>, but changed completely since we use a format
871 instead of a protocol)
876 - added H.263/MPEG-4/MSMPEG4 decoding support. MPEG-4 decoding support
877 (for OpenDivX) is almost complete: 8x8 MVs and rounding are
878 missing. MSMPEG4 support is complete.
879 - added prototype MPEG-1 decoder. Only I- and P-frames handled yet (it
880 can decode ffmpeg MPEGs :-)).
881 - added libavcodec API documentation (see apiexample.c).
882 - fixed image polyphase bug (the bottom of some images could be
884 - added support for non clipped motion vectors (decoding only)
885 and image sizes non-multiple of 16
886 - added support for AC prediction (decoding only)
887 - added file overwrite confirmation (can be disabled with -y)
888 - added custom size picture to H.263 using H.263+ (Juanjo)
893 - added MSMPEG4 (aka DivX) compatible encoder. Changed default codec
894 of AVI and ASF to DIV3.
895 - added -me option to set motion estimation method
896 (default=log). suppressed redundant -hq option.
897 - added options -acodec and -vcodec to force a given codec (useful for
900 - improved dct_quantize speed
901 - factorized some motion estimation code
906 - removing grab code from ffserver and moved it to ffmpeg. Added
907 multistream support to ffmpeg.
908 - added timeshifting support for live feeds (option ?date=xxx in the
910 - added high quality image resize code with polyphase filter (need
911 mmx/see optimization). Enable multiple image size support in ffserver.
912 - added multi live feed support in ffserver
913 - suppressed master feature from ffserver (it should be done with an
914 external program which opens the .ffm url and writes it to another
916 - added preliminary support for video stream parsing (WAV and AVI half
917 done). Added proper support for audio/video file conversion in
919 - added preliminary support for video file sending from ffserver
920 - redesigning I/O subsystem: now using URL based input and output
922 - added WAV format support
923 - added "tty user interface" to ffmpeg to stop grabbing gracefully
924 - added MMX/SSE optimizations to SAD (Sums of Absolutes Differences)
925 (Juan J. Sierralta P. a.k.a. "Juanjo" <juanjo at atmlab.utfsm.cl>)
926 - added MMX DCT from mpeg2_movie 1.5 (Juanjo)
927 - added new motion estimation algorithms, log and phods (Juanjo)
928 - changed directories: libav for format handling, libavcodec for
934 - added stereo in MPEG audio encoder
939 - added 'high quality' mode which use motion vectors. It can be used in
940 real time at low resolution.
941 - fixed rounding problems which caused quality problems at high
942 bitrates and large GOP size
945 version 0.3.2: small fixes
951 version 0.3.1: added avi/divx support
954 - added MPEG-4 codec compatible with OpenDivX. It is based on the H.263 codec
955 - added sound for flash format (not tested)
958 version 0.3: initial public release