1 Entries are sorted chronologically from oldest to youngest within each release,
2 releases are sorted from youngest to oldest.
6 - support ID3v2 tags in ASF files
7 - reference-counting for AVFrame and AVPacket data
8 - avconv now fails when input options are used for output file
10 - new avconv options -filter_script and -filter_complex_script, which allow a
11 filtergraph description to be read from a file
12 - uniform options syntax across all filters
13 - new interlace filter
15 - new asetpts filter (same as setpts, but for audio)
16 - new trim and atrim filters
17 - avconv -t and -ss (output-only) options are now sample-accurate when
19 - Matroska muxer can now put the index at the beginning of the file.
20 - avconv -deinterlace option removed, the yadif filter should be used instead
21 - Apple Intermediate Codec decoder
22 - Escape 130 video decoder
23 - support for slice multithreading in libavfilter
24 - VC-1 interlaced B-frame support
25 - support for WavPack muxing (raw and in Matroska)
27 - WavPack encoding through libwavpack
28 - Added the -n parameter to avconv
30 - when transcoding with avconv (i.e. not streamcopying), -ss is now accurate
31 even when used as an input option. Previous behavior can be restored with
32 the -noaccurate_seek option.
33 - avconv -t option can now be used for inputs, to limit the duration of
34 data read from an input file
35 - incomplete Voxware MetaSound decoder
37 - Error Resilient AAC syntax (ER AAC LC) decoding
38 - Low Delay AAC (ER AAC LD) decoding
39 - mux chapters in ASF files
40 - Opus in Ogg demuxing
41 - Enhanced Low Delay AAC (ER AAC ELD) decoding (no LD SBR support)
43 - HNM version 4 demuxer and video decoder
45 - raw HEVC, HEVC in MOV/MP4, HEVC in Matroska, HEVC in MPEG-TS demuxing
46 - remove avplay -vismv option, which has not worked for a long time
51 - av_basename and av_dirname
52 - adobe and limelight publisher authentication in RTMP
53 - VDPAU hardware acceleration through normal hwaccel
58 - ashowinfo audio filter
59 - 24-bit FLAC encoding
61 - deprecated the avconv -vol option. the volume filter is to be used instead.
62 - multi-channel ALAC encoding up to 7.1
63 - TAK demuxer, parser, and decoder
64 - adaptive frame-level multithreading for H.264
68 - metadata (INFO tag) support in WAV muxer
69 - support for building DLLs using MSVC
70 - remove avserver daemon mode
71 - support building on the Plan 9 operating system
72 - ffv1: support version 1.3
77 - XWD encoder and decoder
78 - Support for fragmentation in the mov/mp4 muxer
79 - ISMV (Smooth Streaming) muxer
80 - CDXL demuxer and decoder
81 - Apple ProRes encoder
82 - Sun Rasterfile Encoder
84 - ID3v2 attached pictures reading and writing
85 - WMA Lossless decoder
87 - RealAudio Lossless decoder
89 - drop support for avconv without libavfilter
90 - add libavresample audio conversion library
91 - audio filters support in libavfilter and avconv
95 - avprobe output is now standard INI or JSON. The old format can still
98 - channelsplit audio filter
99 - RTMPT protocol support
100 - iLBC encoding/decoding via libilbc
101 - Microsoft Screen 1 decoder
103 - audio channel mapping filter
104 - Microsoft ATC Screen decoder
106 - TechSmith Screen Codec 2 decoder
107 - AAC encoding via libfdk-aac
108 - Microsoft Expression Encoder Screen decoder
109 - RTMPS protocol support
110 - RTMPTS protocol support
111 - JPEG 2000 encoding support through OpenJPEG
112 - G.723.1 demuxer and decoder
113 - RTMPE protocol support
114 - RTMPTE protocol support
115 - Canopus Lossless Codec decoder
116 - avconv -shortest option is now per-output file,
117 -pass and -passlogfile are now per-output stream
119 - Microsoft Screen 2 decoder
120 - RTP depacketization of JPEG
121 - Smooth Streaming live segmenter muxer
122 - RTP packetization of JPEG
123 - Opus decoder and encoder using libopus
124 - remove -same_quant, it hasn't worked for years
125 - support for building with MSVC
136 - Automatic thread count based on detection number of (available) CPU cores
137 - Deprecate libpostproc. If desired, the switch --enable-postproc will
138 enable it but it may be removed in a later Libav release.
139 - rv34: frame-level multi-threading
140 - optimized iMDCT transform on x86 using SSE for for mpegaudiodec
146 - Flash Screen Video 2 decoder
147 - ffplay/ffprobe/ffserver renamed to avplay/avprobe/avserver
148 - ffmpeg deprecated, added avconv, which is almost the same for now, except
149 for a few incompatible changes in the options, which will hopefully make them
150 easier to use. The changes are:
151 * The options placement is now strictly enforced! While in theory the
152 options for ffmpeg should be given in [input options] -i INPUT [output
153 options] OUTPUT order, in practice it was possible to give output options
154 before the -i and it mostly worked. Except when it didn't - the behavior was
155 a bit inconsistent. In avconv, it is not possible to mix input and output
156 options. All non-global options are reset after an input or output filename.
157 * All per-file options are now truly per-file - they apply only to the next
158 input or output file and specifying different values for different files
159 will now work properly (notably -ss and -t options).
160 * All per-stream options are now truly per-stream - it is possible to
161 specify which stream(s) should a given option apply to. See the Stream
162 specifiers section in the avconv manual for details.
163 * In ffmpeg some options (like -newvideo/-newaudio/...) are irregular in the
164 sense that they're specified after the output filename instead of before,
165 like all other options. In avconv this irregularity is removed, all options
166 apply to the next input or output file.
167 * -newvideo/-newaudio/-newsubtitle options were removed. Not only were they
168 irregular and highly confusing, they were also redundant. In avconv the -map
169 option will create new streams in the output file and map input streams to
170 them. E.g. avconv -i INPUT -map 0 OUTPUT will create an output stream for
171 each stream in the first input file.
172 * The -map option now has slightly different and more powerful syntax:
173 + Colons (':') are used to separate file index/stream type/stream index
174 instead of dots. Comma (',') is used to separate the sync stream instead
175 of colon.. This is done for consistency with other options.
176 + It's possible to specify stream type. E.g. -map 0:a:2 creates an
177 output stream from the third input audio stream.
178 + Omitting the stream index now maps all the streams of the given type,
179 not just the first. E.g. -map 0:s creates output streams for all the
180 subtitle streams in the first input file.
181 + Since -map can now match multiple streams, negative mappings were
182 introduced. Negative mappings disable some streams from an already
183 defined map. E.g. '-map 0 -map -0:a:1' means 'create output streams for
184 all the stream in the first input file, except for the second audio
186 * There is a new option -c (or -codec) for choosing the decoder/encoder to
187 use, which allows to precisely specify target stream(s) consistently with
188 other options. E.g. -c:v lib264 sets the codec for all video streams, -c:a:0
189 libvorbis sets the codec for the first audio stream and -c copy copies all
190 the streams without reencoding. Old -vcodec/-acodec/-scodec options are now
192 * It is now possible to precisely specify which stream should an AVOption
193 apply to. E.g. -b:v:0 2M sets the bitrate for the first video stream, while
194 -b:a 128k sets the bitrate for all audio streams. Note that the old -ab 128k
195 syntax is deprecated and will stop working soon.
196 * -map_chapters now takes only an input file index and applies to the next
197 output file. This is consistent with how all the other options work.
198 * -map_metadata now takes only an input metadata specifier and applies to
199 the next output file. Output metadata specifier is now part of the option
200 name, similarly to the AVOptions/map/codec feature above.
201 * -metadata can now be used to set metadata on streams and chapters, e.g.
202 -metadata:s:1 language=eng sets the language of the first stream to 'eng'.
203 This made -vlang/-alang/-slang options redundant, so they were removed.
204 * -qscale option now uses stream specifiers and applies to all streams, not
205 just video. I.e. plain -qscale number would now apply to all streams. To get
206 the old behavior, use -qscale:v. Also there is now a shortcut -q for -qscale
207 and -aq is now an alias for -q:a.
208 * -vbsf/-absf/-sbsf options were removed and replaced by a -bsf option which
209 uses stream specifiers. Use -bsf:v/a/s instead of the old options.
210 * -itsscale option now uses stream specifiers, so its argument is only the
212 * -intra option was removed, use -g 0 for the same effect.
213 * -psnr option was removed, use -flags +psnr for the same effect.
214 * -vf option is now an alias to the new -filter option, which uses stream specifiers.
215 * -vframes/-aframes/-dframes options are now aliases to the new -frames option.
216 * -vtag/-atag/-stag options are now aliases to the new -tag option.
218 - Windows Media Image decoder
222 - libcdio-paranoia input device for audio CD grabbing
224 - Apple ProRes decoder
225 - CELT in Ogg demuxing
226 - VC-1 interlaced decoding
227 - lut, lutrgb, and lutyuv filters
230 - Speex encoding via libspeex
231 - 4:2:2 H.264 decoding support
232 - 4:2:2 and 4:4:4 H.264 encoding with libx264
233 - Pulseaudio input device
234 - replacement Indeo 3 decoder
235 - TLS/SSL and HTTPS protocol support
236 - AVOptions API rewritten and documented
237 - most of CODEC_FLAG2_*, some CODEC_FLAG_* and many codec-specific fields in
238 AVCodecContext deprecated. Codec private options should be used instead.
239 - Properly working defaults in libx264 wrapper, support for native presets.
240 - Encrypted OMA files support
241 - Discworld II BMV decoding support
243 - OS X Video Decoder Acceleration (VDA) support
244 - CRI ADX audio format muxer and demuxer
245 - Playstation Portable PMP format demuxer
246 - PCM format support in OMA demuxer
248 - Dxtory capture format decoder
249 - v410 QuickTime uncompressed 4:4:4 10-bit encoder and decoder
251 - Simple segmenting muxer
258 - E-AC-3 audio encoder
259 - ac3enc: add channel coupling support
260 - floating-point sample format support for (E-)AC-3, DCA, AAC, Vorbis decoders
261 - H.264/MPEG frame-level multithreading
262 - av_metadata_* functions renamed to av_dict_* and moved to libavutil
263 - 4:4:4 H.264 decoding support
264 - 10-bit H.264 optimizations for x86
265 - bump libswscale for recently reported ABI break
270 - VP8 frame-level multithreading
271 - NEON optimizations for VP8
272 - removed a lot of deprecated API cruft
273 - FFT and IMDCT optimizations for AVX (Sandy Bridge) processors
275 - SMPTE 302M AES3 audio decoder
276 - ffmpeg no longer quits after the 'q' key is pressed; use 'ctrl+c' instead
277 - 9bit and 10bit per sample support in the H.264 decoder
282 - WebM support in Matroska de/muxer
283 - low overhead Ogg muxing
285 - VP8 de/encoding via libvpx
286 - Demuxer for On2's IVF format
287 - Pictor/PC Paint decoder
289 - libfaad2 wrapper removed
290 - DTS-ES extension (XCh) decoding support
292 - RTSP tunneling over HTTP
293 - RTP depacketization of SVQ3
294 - -strict inofficial replaced by -strict unofficial
295 - ffplay -exitonkeydown and -exitonmousedown options added
296 - native GSM / GSM MS decoder
297 - RTP depacketization of QDM2
298 - ANSI/ASCII art playback system
299 - Lego Mindstorms RSO de/muxer
300 - SubRip subtitle file muxer and demuxer
301 - Chinese AVS encoding via libxavs
302 - ffprobe -show_packets option added
303 - RTP packetization of Theora and Vorbis
304 - RTP depacketization of MP4A-LATM
305 - RTP packetization and depacketization of VP8
307 - Apple HTTP Live Streaming demuxer
310 - G.722 ADPCM audio encoder/decoder
313 - frei0r wrapper filter
314 - change crop filter syntax to width:height:x:y
315 - make the crop filter accept parametric expressions
316 - make ffprobe accept AVFormatContext options
319 - Demuxer for Leitch/Harris' VR native stream format (LXF)
320 - RTP depacketization of the X-QT QuickTime format
321 - SAP (Session Announcement Protocol, RFC 2974) muxer and demuxer
323 - ffmpeg -crop* options removed
324 - transpose filter added
325 - ffmpeg -force_key_frames option added
326 - demuxer for receiving raw rtp:// URLs without an SDP description
327 - single stream LATM/LOAS decoder
328 - setpts filter added
329 - Win64 support for optimized x86 assembly functions
330 - MJPEG/AVI1 to JPEG/JFIF bitstream filter
331 - ASS subtitle encoder and decoder
332 - IEC 61937 encapsulation for E-AC-3, TrueHD, DTS-HD (for HDMI passthrough)
333 - overlay filter added
334 - rename aspect filter to setdar, and pixelaspect to setsar
336 - Mobotix .mxg demuxer
337 - frei0r source added
338 - hqdn3d filter added
339 - RTP depacketization of QCELP
341 - gradfun filter added
343 - replace the ocv_smooth filter with a more generic ocv filter
344 - Windows Televison (WTV) demuxer
345 - FFmpeg metadata format muxer and demuxer
346 - SubRip (srt) subtitle decoder
347 - floating-point AC-3 encoder added
349 - ffmpeg -copytb option added
351 - Wing Commander IV movies decoder added
353 - Bink version 'b' audio and video decoder
354 - Bitmap Brothers JV playback system
355 - Apple HTTP Live Streaming protocol handler
356 - sndio support for playback and record
357 - Linux framebuffer input device added
358 - Chronomaster DFA decoder
359 - Mobotix MxPEG decoder
360 - AAC encoding via libvo-aacenc
361 - AMR-WB encoding via libvo-amrwbenc
363 - fieldorder video filter added
368 - PB-frame decoding for H.263
369 - deprecated vhook subsystem removed
370 - deprecated old scaler removed
372 - Alpha channel scaler
374 - RTP packetization of H.263
375 - RTP packetization of AMR
376 - RTP depacketization of Vorbis
377 - CorePNG decoding support
378 - Cook multichannel decoding support
379 - introduced avlanguage helpers in libavformat
380 - 8088flex TMV demuxer and decoder
381 - per-stream language-tags extraction in asfdec
382 - V210 decoder and encoder
383 - remaining GPL parts in AC-3 decoder converted to LGPL
385 - SoX native format muxer and demuxer
386 - AMR-NB decoding/encoding, AMR-WB decoding via OpenCORE libraries
388 - Electronic Arts Madcow decoder
389 - DivX (XSUB) subtitle encoder
390 - nonfree libamr support for AMR-NB/WB decoding/encoding removed
391 - experimental AAC encoder
392 - RTP depacketization of ASF and RTSP from WMS servers
393 - RTMP support in libavformat
394 - noX handling for OPT_BOOL X options
396 - IEC-61937 compatible Muxer
398 - Bluray (PGS) subtitle decoder
399 - LPCM support in MPEG-TS (HDMV RID as found on Blu-ray disks)
401 - Core Audio Format demuxer
403 - MD STUDIO audio demuxer
404 - RF64 support in WAV demuxer
405 - MPEG-4 Audio Lossless Coding (ALS) decoder
406 - -formats option split into -formats, -codecs, -bsfs, and -protocols
408 - CDG demuxer and decoder
410 - Auravision Aura 1 and 2 decoders
411 - Deluxe Paint Animation playback system
413 - Adobe Filmstrip muxer and demuxer
414 - RTP depacketization of H.263
415 - Bink demuxer and audio/video decoders
416 - enable symbol versioning by default for linkers that support it
417 - IFF PBM/ILBM bitmap decoder
420 - RTP depacketization of AMR
426 - Kega Game Video (KGV1) decoder
427 - VorbisComment writing for FLAC, Ogg FLAC and Ogg Speex files
428 - RTP depacketization of Theora
429 - HTTP Digest authentication
430 - RTMP/RTMPT/RTMPS/RTMPE/RTMPTE protocol support via librtmp
431 - Psygnosis YOP demuxer and video decoder
432 - spectral extension support in the E-AC-3 decoder
433 - unsharp video filter
434 - RTP hinting in the mov/3gp/mp4 muxer
435 - Dirac in Ogg demuxing
436 - seek to keyframes in Ogg
437 - 4:2:2 and 4:4:4 Theora decoding
438 - 35% faster VP3/Theora decoding
439 - faster AAC decoding
440 - faster H.264 decoding
441 - RealAudio 1.0 (14.4K) encoder
446 - DV50 AKA DVCPRO50 encoder, decoder, muxer and demuxer
447 - TechSmith Camtasia (TSCC) video decoder
448 - IBM Ultimotion (ULTI) video decoder
449 - Sierra Online audio file demuxer and decoder
450 - Apple QuickDraw (qdrw) video decoder
451 - Creative ADPCM audio decoder (16 bits as well as 8 bits schemes)
452 - Electronic Arts Multimedia (WVE/UV2/etc.) file demuxer
453 - Miro VideoXL (VIXL) video decoder
454 - H.261 video encoder
456 - Nullsoft Video (NSV) file demuxer
457 - Shorten audio decoder
459 - Apple Lossless Audio Codec (ALAC) decoder
460 - Winnov WNV1 video decoder
461 - Autodesk Animator Studio Codec (AASC) decoder
462 - Indeo 2 video decoder
463 - Fraps FPS1 video decoder
464 - Snow video encoder/decoder
465 - Sonic audio encoder/decoder
466 - Vorbis audio decoder
467 - Macromedia ADPCM decoder
468 - Duck TrueMotion 2 video decoder
469 - support for decoding FLX and DTA extensions in FLIC files
470 - H.264 custom quantization matrices support
471 - ffserver fixed, it should now be usable again
473 - Real Cooker audio decoder
474 - TrueSpeech audio decoder
475 - WMA2 audio decoder fixed, now all files should play correctly
476 - RealAudio 14.4 and 28.8 decoders fixed
478 - build system improvements
479 - tabs and trailing whitespace removed from the codebase
480 - CamStudio video decoder
481 - AIFF/AIFF-C audio format, encoding and decoding
482 - ADTS AAC file reading and writing
483 - Creative VOC file reading and writing
484 - American Laser Games multimedia (*.mm) playback system
485 - Zip Motion Blocks Video decoder
486 - improved Theora/VP3 decoder
487 - True Audio (TTA) decoder
488 - AVS demuxer and video decoder
490 - Smacker demuxer and decoder
491 - NuppelVideo/MythTV demuxer and RTjpeg decoder
493 - MPEG-2 intra VLC support
494 - MPEG-2 4:2:2 encoder
495 - Flash Screen Video decoder
497 - Chinese AVS decoder
500 - VC-1/WMV3/WMV9 video decoder
503 - VMware video decoder
506 - WavPack lossless audio decoder
507 - Targa (.TGA) picture decoder
508 - Vorbis audio encoder
509 - Delphine Software .cin demuxer/audio and video decoder
510 - Tiertex .seq demuxer/video decoder
512 - TIFF picture encoder and decoder
513 - GIF picture decoder
514 - Intel Music Coder decoder
515 - Zip Motion Blocks Video encoder
517 - Flash Screen Video encoder
518 - Theora encoding via libtheora
521 - GSM-MS encoder and decoder
523 - DXA demuxer and decoder
525 - Gamecube movie (.THP) playback system
526 - Blackfin optimizations
527 - Interplay C93 demuxer and video decoder
528 - Bethsoft VID demuxer and video decoder
531 - V.Flash PTX decoder
532 - RoQ muxer, RoQ audio encoder
533 - Renderware TXD demuxer and decoder
534 - extern C declarations for C++ removed from headers
535 - sws_flags command line option
539 - OS/2 support removed and restored again
542 - additional SPARC (VIS) optimizations
544 - slice-based parallel H.264 decoding
545 - Monkey's Audio demuxer and decoder
546 - AMV audio and video decoder
548 - H.264 PAFF decoding
549 - Nellymoser ASAO decoder
550 - Beam Software SIFF demuxer and decoder
551 - libvorbis Vorbis decoding removed in favor of native decoder
552 - IntraX8 (J-Frame) subdecoder for WMV2 and VC-1
553 - Ogg (Theora, Vorbis and FLAC) muxer
554 - The "device" muxers and demuxers are now in a new libavdevice library
555 - PC Paintbrush PCX decoder
556 - Sun Rasterfile decoder
557 - TechnoTrend PVA demuxer
558 - Linux Media Labs MPEG-4 (LMLM4) demuxer
559 - AVM2 (Flash 9) SWF muxer
560 - QT variant of IMA ADPCM encoder
562 - iPod/iPhone compatible mp4 muxer
564 - MSN TCP Webcam stream demuxer
565 - RL2 demuxer / decoder
568 - non-recursive Makefiles
570 - MAXIS EA XA (.xa) demuxer / decoder
574 - Electronic Arts CMV decoder
575 - Motion Pixels Video decoder
576 - Motion Pixels MVI demuxer
577 - removed animated GIF decoder/demuxer
578 - D-Cinema audio muxer
579 - Electronic Arts TGV decoder
580 - Apple Lossless Audio Codec (ALAC) encoder
582 - floating point PCM encoder/decoder
584 - DV100 AKA DVCPRO HD decoder and demuxer
585 - E-AC-3 support added to AC-3 decoder
586 - Nellymoser ASAO encoder
587 - ASS and SSA demuxer and muxer
588 - liba52 wrapper removed
589 - SVQ3 watermark decoding support
590 - Speex decoding via libspeex
591 - Electronic Arts TGQ decoder
593 - QCELP / PureVoice decoder
595 - hybrid WavPack support
596 - R3D REDCODE demuxer
597 - ALSA support for playback and record
598 - Electronic Arts TQI decoder
599 - OpenJPEG based JPEG 2000 decoder
600 - NC (NC4600) camera file demuxer
601 - Gopher client support
603 - generic metadata API
608 - DV encoder, DV muxer
609 - Microsoft RLE video decoder
610 - Microsoft Video-1 decoder
611 - Apple Animation (RLE) decoder
612 - Apple Graphics (SMC) decoder
613 - Apple Video (RPZA) decoder
615 - Sega FILM (CPK) file demuxer
616 - Westwood multimedia support (VQA & AUD files)
617 - Id Quake II CIN playback support
619 - FLIC playback support
620 - RealVideo 2.0 (RV20) decoder
621 - Duck TrueMotion v1 (DUCK) video decoder
622 - Sierra VMD demuxer and video decoder
623 - MSZH and ZLIB decoder support
627 - rate distortion optimal cbp support
628 - rate distorted optimal ac prediction for MPEG-4
629 - rate distorted optimal lambda->qp support
630 - AAC encoding with libfaac
631 - Sunplus JPEG codec (SP5X) support
632 - use Lagrange multipler instead of QP for ratecontrol
633 - Theora/VP3 decoding support
634 - XA and ADX ADPCM codecs
635 - export MPEG-2 active display area / pan scan
636 - Add support for configuring with IBM XLC
637 - floating point AAN DCT
638 - initial support for zygo video (not complete)
640 - new audio/video parser API
642 - av_read_frame() and av_seek_frame() support
643 - missing last frame fixes
644 - seek by mouse in ffplay
645 - noise reduction of DCT coefficients
646 - H.263 OBMC & 4MV support
647 - H.263 alternative inter vlc support
649 - H.263 slice structured mode
650 - interlaced DCT support for MPEG-2 encoding
651 - stuffing to stay above min_bitrate
652 - MB type & QP visualization
653 - frame stepping for ffplay
654 - interlaced motion estimation
655 - alternate scantable support
656 - SVCD scan offset support
659 - quantizer noise shaping
660 - G.726 ADPCM audio codec
662 - multithreaded/SMP motion estimation
663 - multithreaded/SMP encoding for MPEG-1/MPEG-2/MPEG-4/H.263
664 - multithreaded/SMP decoding for MPEG-2
666 - Metrowerks CodeWarrior suppport
667 - H.263+ custom pcf support
668 - nicer output for 'ffmpeg -formats'
670 - SGI image format, encoding and decoding
671 - H.264 loop filter support
672 - H.264 CABAC support
673 - nicer looking arrows for the motion vector visualization
674 - improved VCD support
675 - audio timestamp drift compensation
676 - MPEG-2 YUV 422/444 support
677 - polyphase kaiser windowed sinc and blackman nuttall windowed sinc audio resample
678 - better image scaling
680 - correctly interleave packets during encoding
681 - VIS optimized motion compensation
682 - intra_dc_precision>0 encoding support
683 - support reuse of motion vectors/MB types/field select values of the source video
684 - more accurate deblock filter
686 - many optimizations and bugfixes
687 - FunCom ISS audio file demuxer and according ADPCM decoding
692 - MPEG-2 video encoding (Michael)
693 - Id RoQ playback subsystem (Mike Melanson and Tim Ferguson)
694 - Wing Commander III Movie (.mve) file playback subsystem (Mike Melanson
696 - Xan DPCM audio decoder (Mario Brito)
697 - Interplay MVE playback subsystem (Mike Melanson)
698 - Duck DK3 and DK4 ADPCM audio decoders (Mike Melanson)
703 - RealAudio 1.0 (14_4) and 2.0 (28_8) native decoders. Author unknown, code from mplayerhq
704 (originally from public domain player for Amiga at http://www.honeypot.net/audio)
705 - current version now also compiles with older GCC (Fabrice)
706 - 4X multimedia playback system including 4xm file demuxer (Mike
707 Melanson), and 4X video and audio codecs (Michael)
708 - Creative YUV (CYUV) decoder (Mike Melanson)
709 - FFV1 codec (our very simple lossless intra only codec, compresses much better
710 than HuffYUV) (Michael)
711 - ASV1 (Asus), H.264, Intel indeo3 codecs have been added (various)
712 - tiny PNG encoder and decoder, tiny GIF decoder, PAM decoder (PPM with
713 alpha support), JPEG YUV colorspace support. (Fabrice Bellard)
714 - ffplay has been replaced with a newer version which uses SDL (optionally)
715 for multiplatform support (Fabrice)
716 - Sorenson Version 3 codec (SVQ3) support has been added (decoding only) - donated
718 - AMR format has been added (Johannes Carlsson)
719 - 3GP support has been added (Johannes Carlsson)
720 - VP3 codec has been added (Mike Melanson)
721 - more MPEG-1/2 fixes
722 - better multiplatform support, MS Visual Studio fixes (various)
723 - AltiVec optimizations (Magnus Damn and others)
724 - SH4 processor support has been added (BERO)
725 - new public interfaces (avcodec_get_pix_fmt) (Roman Shaposhnick)
726 - VOB streaming support (Brian Foley)
727 - better MP3 autodetection (Andriy Rysin)
728 - qpel encoding (Michael)
729 - 4mv+b frames encoding finally fixed (Michael)
730 - chroma ME (Michael)
731 - 5 comparison functions for ME (Michael)
732 - B-frame encoding speedup (Michael)
733 - WMV2 codec (unfinished - Michael)
734 - user specified diamond size for EPZS (Michael)
735 - Playstation STR playback subsystem, still experimental (Mike and Michael)
736 - ASV2 codec (Michael)
737 - CLJR decoder (Alex)
739 .. And lots more new enhancements and fixes.
744 - completely new integer only MPEG audio layer 1/2/3 decoder rewritten
746 - Recoded DCT and motion vector search with gcc (no longer depends on nasm)
747 - fix quantization bug in AC3 encoder
748 - added PCM codecs and format. Corrected WAV/AVI/ASF PCM issues
749 - added prototype ffplay program
750 - added GOB header parsing on H.263/H.263+ decoder (Juanjo)
751 - bug fix on MCBPC tables of H.263 (Juanjo)
752 - bug fix on DC coefficients of H.263 (Juanjo)
753 - added Advanced Prediction Mode on H.263/H.263+ decoder (Juanjo)
754 - now we can decode H.263 streams found in QuickTime files (Juanjo)
755 - now we can decode H.263 streams found in VIVO v1 files(Juanjo)
756 - preliminary RTP "friendly" mode for H.263/H.263+ coding. (Juanjo)
757 - added GOB header for H.263/H.263+ coding on RTP mode (Juanjo)
758 - now H.263 picture size is returned on the first decoded frame (Juanjo)
759 - added first regression tests
760 - added MPEG-2 TS demuxer
761 - new demux API for libav
762 - more accurate and faster IDCT (Michael)
763 - faster and entropy-controlled motion search (Michael)
764 - two pass video encoding (Michael)
765 - new video rate control (Michael)
766 - added MSMPEG4V1, MSMPEGV2 and WMV1 support (Michael)
767 - great performance improvement of video encoders and decoders (Michael)
768 - new and faster bit readers and vlc parsers (Michael)
769 - high quality encoding mode: tries all macroblock/VLC types (Michael)
770 - added DV video decoder
771 - preliminary RTP/RTSP support in ffserver and libavformat
772 - H.263+ AIC decoding/encoding support (Juanjo)
773 - VCD MPEG-PS mode (Juanjo)
774 - PSNR stuff (Juanjo)
775 - simple stats output (Juanjo)
776 - 16-bit and 15-bit RGB/BGR/GBR support (Bisqwit)
781 - some header fixes (Zdenek Kabelac <kabi at informatics.muni.cz>)
782 - many MMX optimizations (Nick Kurshev <nickols_k at mail.ru>)
783 - added configure system (actually a small shell script)
784 - added MPEG audio layer 1/2/3 decoding using LGPL'ed mpglib by
785 Michael Hipp (temporary solution - waiting for integer only
787 - fixed VIDIOCSYNC interrupt
788 - added Intel H.263 decoding support ('I263' AVI fourCC)
789 - added Real Video 1.0 decoding (needs further testing)
790 - simplified image formats again. Added PGM format (=grey
791 pgm). Renamed old PGM to PGMYUV.
792 - fixed msmpeg4 slice issues (tell me if you still find problems)
793 - fixed OpenDivX bugs with newer versions (added VOL header decoding)
794 - added support for MPlayer interface
795 - added macroblock skip optimization
796 - added MJPEG decoder
797 - added mmx/mmxext IDCT from libmpeg2
798 - added pgmyuvpipe, ppm, and ppm_pipe formats (original patch by Celer
799 <celer at shell.scrypt.net>)
800 - added pixel format conversion layer (e.g. for MJPEG or PPM)
801 - added deinterlacing option
803 - MPEG-4 vol header fixes (Jonathan Marsden <snmjbm at pacbell.net>)
804 - ARM optimizations (Lionel Ulmer <lionel.ulmer at free.fr>).
805 - Windows porting of file converter
806 - added MJPEG raw format (input/ouput)
807 - added JPEG image format support (input/output)
812 - fixed some std header definitions (Bjorn Lindgren
813 <bjorn.e.lindgren at telia.com>).
814 - added MPEG demuxer (MPEG-1 and 2 compatible).
816 - added prototype RM demuxer
817 - added AC3 decoding (done with libac3 by Aaron Holtzman)
818 - added decoding codec parameter guessing (.e.g. for MPEG, because the
819 header does not include them)
820 - fixed header generation in MPEG-1, AVI and ASF muxer: wmplayer can now
821 play them (only tested video)
822 - fixed H.263 white bug
823 - fixed phase rounding in img resample filter
824 - add MMX code for polyphase img resample filter
825 - added CPU autodetection
826 - added generic title/author/copyright/comment string handling (ASF and RM
828 - added SWF demux to extract MP3 track (not usable yet because no MP3
830 - added fractional frame rate support
831 - codecs are no longer searched by read_header() (should fix ffserver
837 - BGR24 patch (initial patch by Jeroen Vreeken <pe1rxq at amsat.org>)
838 - fixed raw yuv output
839 - added motion rounding support in MPEG-4
840 - fixed motion bug rounding in MSMPEG4
841 - added B-frame handling in video core
842 - added full MPEG-1 decoding support
843 - added partial (frame only) MPEG-2 support
844 - changed the FOURCC code for H.263 to "U263" to be able to see the
845 +AVI/H.263 file with the UB Video H.263+ decoder. MPlayer works with
846 this +codec ;) (JuanJo).
847 - Halfpel motion estimation after MB type selection (JuanJo)
848 - added pgm and .Y.U.V output format
849 - suppressed 'img:' protocol. Simply use: /tmp/test%d.[pgm|Y] as input or
851 - added pgmpipe I/O format (original patch from Martin Aumueller
852 <lists at reserv.at>, but changed completely since we use a format
853 instead of a protocol)
858 - added H.263/MPEG-4/MSMPEG4 decoding support. MPEG-4 decoding support
859 (for OpenDivX) is almost complete: 8x8 MVs and rounding are
860 missing. MSMPEG4 support is complete.
861 - added prototype MPEG-1 decoder. Only I- and P-frames handled yet (it
862 can decode ffmpeg MPEGs :-)).
863 - added libavcodec API documentation (see apiexample.c).
864 - fixed image polyphase bug (the bottom of some images could be
866 - added support for non clipped motion vectors (decoding only)
867 and image sizes non-multiple of 16
868 - added support for AC prediction (decoding only)
869 - added file overwrite confirmation (can be disabled with -y)
870 - added custom size picture to H.263 using H.263+ (Juanjo)
875 - added MSMPEG4 (aka DivX) compatible encoder. Changed default codec
876 of AVI and ASF to DIV3.
877 - added -me option to set motion estimation method
878 (default=log). suppressed redundant -hq option.
879 - added options -acodec and -vcodec to force a given codec (useful for
882 - improved dct_quantize speed
883 - factorized some motion estimation code
888 - removing grab code from ffserver and moved it to ffmpeg. Added
889 multistream support to ffmpeg.
890 - added timeshifting support for live feeds (option ?date=xxx in the
892 - added high quality image resize code with polyphase filter (need
893 mmx/see optimization). Enable multiple image size support in ffserver.
894 - added multi live feed support in ffserver
895 - suppressed master feature from ffserver (it should be done with an
896 external program which opens the .ffm url and writes it to another
898 - added preliminary support for video stream parsing (WAV and AVI half
899 done). Added proper support for audio/video file conversion in
901 - added preliminary support for video file sending from ffserver
902 - redesigning I/O subsystem: now using URL based input and output
904 - added WAV format support
905 - added "tty user interface" to ffmpeg to stop grabbing gracefully
906 - added MMX/SSE optimizations to SAD (Sums of Absolutes Differences)
907 (Juan J. Sierralta P. a.k.a. "Juanjo" <juanjo at atmlab.utfsm.cl>)
908 - added MMX DCT from mpeg2_movie 1.5 (Juanjo)
909 - added new motion estimation algorithms, log and phods (Juanjo)
910 - changed directories: libav for format handling, libavcodec for
916 - added stereo in MPEG audio encoder
921 - added 'high quality' mode which use motion vectors. It can be used in
922 real time at low resolution.
923 - fixed rounding problems which caused quality problems at high
924 bitrates and large GOP size
927 version 0.3.2: small fixes
933 version 0.3.1: added avi/divx support
936 - added MPEG-4 codec compatible with OpenDivX. It is based on the H.263 codec
937 - added sound for flash format (not tested)
940 version 0.3: initial public release