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
38 - av_basename and av_dirname
39 - adobe and limelight publisher authentication in RTMP
40 - VDPAU hardware acceleration through normal hwaccel
45 - ashowinfo audio filter
46 - 24-bit FLAC encoding
48 - deprecated the avconv -vol option. the volume filter is to be used instead.
49 - multi-channel ALAC encoding up to 7.1
50 - TAK demuxer, parser, and decoder
51 - adaptive frame-level multithreading for H.264
55 - metadata (INFO tag) support in WAV muxer
56 - support for building DLLs using MSVC
57 - remove avserver daemon mode
58 - support building on the Plan 9 operating system
59 - ffv1: support version 1.3
64 - XWD encoder and decoder
65 - Support for fragmentation in the mov/mp4 muxer
66 - ISMV (Smooth Streaming) muxer
67 - CDXL demuxer and decoder
68 - Apple ProRes encoder
69 - Sun Rasterfile Encoder
71 - ID3v2 attached pictures reading and writing
72 - WMA Lossless decoder
74 - RealAudio Lossless decoder
76 - drop support for avconv without libavfilter
77 - add libavresample audio conversion library
78 - audio filters support in libavfilter and avconv
82 - avprobe output is now standard INI or JSON. The old format can still
85 - channelsplit audio filter
86 - RTMPT protocol support
87 - iLBC encoding/decoding via libilbc
88 - Microsoft Screen 1 decoder
90 - audio channel mapping filter
91 - Microsoft ATC Screen decoder
93 - TechSmith Screen Codec 2 decoder
94 - AAC encoding via libfdk-aac
95 - Microsoft Expression Encoder Screen decoder
96 - RTMPS protocol support
97 - RTMPTS protocol support
98 - JPEG 2000 encoding support through OpenJPEG
99 - G.723.1 demuxer and decoder
100 - RTMPE protocol support
101 - RTMPTE protocol support
102 - Canopus Lossless Codec decoder
103 - avconv -shortest option is now per-output file,
104 -pass and -passlogfile are now per-output stream
106 - Microsoft Screen 2 decoder
107 - RTP depacketization of JPEG
108 - Smooth Streaming live segmenter muxer
109 - RTP packetization of JPEG
110 - Opus decoder and encoder using libopus
111 - remove -same_quant, it hasn't worked for years
112 - support for building with MSVC
123 - Automatic thread count based on detection number of (available) CPU cores
124 - Deprecate libpostproc. If desired, the switch --enable-postproc will
125 enable it but it may be removed in a later Libav release.
126 - rv34: frame-level multi-threading
127 - optimized iMDCT transform on x86 using SSE for for mpegaudiodec
133 - Flash Screen Video 2 decoder
134 - ffplay/ffprobe/ffserver renamed to avplay/avprobe/avserver
135 - ffmpeg deprecated, added avconv, which is almost the same for now, except
136 for a few incompatible changes in the options, which will hopefully make them
137 easier to use. The changes are:
138 * The options placement is now strictly enforced! While in theory the
139 options for ffmpeg should be given in [input options] -i INPUT [output
140 options] OUTPUT order, in practice it was possible to give output options
141 before the -i and it mostly worked. Except when it didn't - the behavior was
142 a bit inconsistent. In avconv, it is not possible to mix input and output
143 options. All non-global options are reset after an input or output filename.
144 * All per-file options are now truly per-file - they apply only to the next
145 input or output file and specifying different values for different files
146 will now work properly (notably -ss and -t options).
147 * All per-stream options are now truly per-stream - it is possible to
148 specify which stream(s) should a given option apply to. See the Stream
149 specifiers section in the avconv manual for details.
150 * In ffmpeg some options (like -newvideo/-newaudio/...) are irregular in the
151 sense that they're specified after the output filename instead of before,
152 like all other options. In avconv this irregularity is removed, all options
153 apply to the next input or output file.
154 * -newvideo/-newaudio/-newsubtitle options were removed. Not only were they
155 irregular and highly confusing, they were also redundant. In avconv the -map
156 option will create new streams in the output file and map input streams to
157 them. E.g. avconv -i INPUT -map 0 OUTPUT will create an output stream for
158 each stream in the first input file.
159 * The -map option now has slightly different and more powerful syntax:
160 + Colons (':') are used to separate file index/stream type/stream index
161 instead of dots. Comma (',') is used to separate the sync stream instead
162 of colon.. This is done for consistency with other options.
163 + It's possible to specify stream type. E.g. -map 0:a:2 creates an
164 output stream from the third input audio stream.
165 + Omitting the stream index now maps all the streams of the given type,
166 not just the first. E.g. -map 0:s creates output streams for all the
167 subtitle streams in the first input file.
168 + Since -map can now match multiple streams, negative mappings were
169 introduced. Negative mappings disable some streams from an already
170 defined map. E.g. '-map 0 -map -0:a:1' means 'create output streams for
171 all the stream in the first input file, except for the second audio
173 * There is a new option -c (or -codec) for choosing the decoder/encoder to
174 use, which allows to precisely specify target stream(s) consistently with
175 other options. E.g. -c:v lib264 sets the codec for all video streams, -c:a:0
176 libvorbis sets the codec for the first audio stream and -c copy copies all
177 the streams without reencoding. Old -vcodec/-acodec/-scodec options are now
179 * It is now possible to precisely specify which stream should an AVOption
180 apply to. E.g. -b:v:0 2M sets the bitrate for the first video stream, while
181 -b:a 128k sets the bitrate for all audio streams. Note that the old -ab 128k
182 syntax is deprecated and will stop working soon.
183 * -map_chapters now takes only an input file index and applies to the next
184 output file. This is consistent with how all the other options work.
185 * -map_metadata now takes only an input metadata specifier and applies to
186 the next output file. Output metadata specifier is now part of the option
187 name, similarly to the AVOptions/map/codec feature above.
188 * -metadata can now be used to set metadata on streams and chapters, e.g.
189 -metadata:s:1 language=eng sets the language of the first stream to 'eng'.
190 This made -vlang/-alang/-slang options redundant, so they were removed.
191 * -qscale option now uses stream specifiers and applies to all streams, not
192 just video. I.e. plain -qscale number would now apply to all streams. To get
193 the old behavior, use -qscale:v. Also there is now a shortcut -q for -qscale
194 and -aq is now an alias for -q:a.
195 * -vbsf/-absf/-sbsf options were removed and replaced by a -bsf option which
196 uses stream specifiers. Use -bsf:v/a/s instead of the old options.
197 * -itsscale option now uses stream specifiers, so its argument is only the
199 * -intra option was removed, use -g 0 for the same effect.
200 * -psnr option was removed, use -flags +psnr for the same effect.
201 * -vf option is now an alias to the new -filter option, which uses stream specifiers.
202 * -vframes/-aframes/-dframes options are now aliases to the new -frames option.
203 * -vtag/-atag/-stag options are now aliases to the new -tag option.
205 - Windows Media Image decoder
209 - libcdio-paranoia input device for audio CD grabbing
211 - Apple ProRes decoder
212 - CELT in Ogg demuxing
213 - VC-1 interlaced decoding
214 - lut, lutrgb, and lutyuv filters
217 - Speex encoding via libspeex
218 - 4:2:2 H.264 decoding support
219 - 4:2:2 and 4:4:4 H.264 encoding with libx264
220 - Pulseaudio input device
221 - replacement Indeo 3 decoder
222 - TLS/SSL and HTTPS protocol support
223 - AVOptions API rewritten and documented
224 - most of CODEC_FLAG2_*, some CODEC_FLAG_* and many codec-specific fields in
225 AVCodecContext deprecated. Codec private options should be used instead.
226 - Properly working defaults in libx264 wrapper, support for native presets.
227 - Encrypted OMA files support
228 - Discworld II BMV decoding support
230 - OS X Video Decoder Acceleration (VDA) support
231 - CRI ADX audio format muxer and demuxer
232 - Playstation Portable PMP format demuxer
233 - PCM format support in OMA demuxer
235 - Dxtory capture format decoder
236 - v410 QuickTime uncompressed 4:4:4 10-bit encoder and decoder
238 - Simple segmenting muxer
245 - E-AC-3 audio encoder
246 - ac3enc: add channel coupling support
247 - floating-point sample format support for (E-)AC-3, DCA, AAC, Vorbis decoders
248 - H.264/MPEG frame-level multithreading
249 - av_metadata_* functions renamed to av_dict_* and moved to libavutil
250 - 4:4:4 H.264 decoding support
251 - 10-bit H.264 optimizations for x86
252 - bump libswscale for recently reported ABI break
257 - VP8 frame-level multithreading
258 - NEON optimizations for VP8
259 - removed a lot of deprecated API cruft
260 - FFT and IMDCT optimizations for AVX (Sandy Bridge) processors
262 - SMPTE 302M AES3 audio decoder
263 - ffmpeg no longer quits after the 'q' key is pressed; use 'ctrl+c' instead
264 - 9bit and 10bit per sample support in the H.264 decoder
269 - WebM support in Matroska de/muxer
270 - low overhead Ogg muxing
272 - VP8 de/encoding via libvpx
273 - Demuxer for On2's IVF format
274 - Pictor/PC Paint decoder
276 - libfaad2 wrapper removed
277 - DTS-ES extension (XCh) decoding support
279 - RTSP tunneling over HTTP
280 - RTP depacketization of SVQ3
281 - -strict inofficial replaced by -strict unofficial
282 - ffplay -exitonkeydown and -exitonmousedown options added
283 - native GSM / GSM MS decoder
284 - RTP depacketization of QDM2
285 - ANSI/ASCII art playback system
286 - Lego Mindstorms RSO de/muxer
287 - SubRip subtitle file muxer and demuxer
288 - Chinese AVS encoding via libxavs
289 - ffprobe -show_packets option added
290 - RTP packetization of Theora and Vorbis
291 - RTP depacketization of MP4A-LATM
292 - RTP packetization and depacketization of VP8
294 - Apple HTTP Live Streaming demuxer
297 - G.722 ADPCM audio encoder/decoder
300 - frei0r wrapper filter
301 - change crop filter syntax to width:height:x:y
302 - make the crop filter accept parametric expressions
303 - make ffprobe accept AVFormatContext options
306 - Demuxer for Leitch/Harris' VR native stream format (LXF)
307 - RTP depacketization of the X-QT QuickTime format
308 - SAP (Session Announcement Protocol, RFC 2974) muxer and demuxer
310 - ffmpeg -crop* options removed
311 - transpose filter added
312 - ffmpeg -force_key_frames option added
313 - demuxer for receiving raw rtp:// URLs without an SDP description
314 - single stream LATM/LOAS decoder
315 - setpts filter added
316 - Win64 support for optimized x86 assembly functions
317 - MJPEG/AVI1 to JPEG/JFIF bitstream filter
318 - ASS subtitle encoder and decoder
319 - IEC 61937 encapsulation for E-AC-3, TrueHD, DTS-HD (for HDMI passthrough)
320 - overlay filter added
321 - rename aspect filter to setdar, and pixelaspect to setsar
323 - Mobotix .mxg demuxer
324 - frei0r source added
325 - hqdn3d filter added
326 - RTP depacketization of QCELP
328 - gradfun filter added
330 - replace the ocv_smooth filter with a more generic ocv filter
331 - Windows Televison (WTV) demuxer
332 - FFmpeg metadata format muxer and demuxer
333 - SubRip (srt) subtitle decoder
334 - floating-point AC-3 encoder added
336 - ffmpeg -copytb option added
338 - Wing Commander IV movies decoder added
340 - Bink version 'b' audio and video decoder
341 - Bitmap Brothers JV playback system
342 - Apple HTTP Live Streaming protocol handler
343 - sndio support for playback and record
344 - Linux framebuffer input device added
345 - Chronomaster DFA decoder
346 - Mobotix MxPEG decoder
347 - AAC encoding via libvo-aacenc
348 - AMR-WB encoding via libvo-amrwbenc
350 - fieldorder video filter added
355 - PB-frame decoding for H.263
356 - deprecated vhook subsystem removed
357 - deprecated old scaler removed
359 - Alpha channel scaler
361 - RTP packetization of H.263
362 - RTP packetization of AMR
363 - RTP depacketization of Vorbis
364 - CorePNG decoding support
365 - Cook multichannel decoding support
366 - introduced avlanguage helpers in libavformat
367 - 8088flex TMV demuxer and decoder
368 - per-stream language-tags extraction in asfdec
369 - V210 decoder and encoder
370 - remaining GPL parts in AC-3 decoder converted to LGPL
372 - SoX native format muxer and demuxer
373 - AMR-NB decoding/encoding, AMR-WB decoding via OpenCORE libraries
375 - Electronic Arts Madcow decoder
376 - DivX (XSUB) subtitle encoder
377 - nonfree libamr support for AMR-NB/WB decoding/encoding removed
378 - experimental AAC encoder
379 - RTP depacketization of ASF and RTSP from WMS servers
380 - RTMP support in libavformat
381 - noX handling for OPT_BOOL X options
383 - IEC-61937 compatible Muxer
385 - Bluray (PGS) subtitle decoder
386 - LPCM support in MPEG-TS (HDMV RID as found on Blu-ray disks)
388 - Core Audio Format demuxer
390 - MD STUDIO audio demuxer
391 - RF64 support in WAV demuxer
392 - MPEG-4 Audio Lossless Coding (ALS) decoder
393 - -formats option split into -formats, -codecs, -bsfs, and -protocols
395 - CDG demuxer and decoder
397 - Auravision Aura 1 and 2 decoders
398 - Deluxe Paint Animation playback system
400 - Adobe Filmstrip muxer and demuxer
401 - RTP depacketization of H.263
402 - Bink demuxer and audio/video decoders
403 - enable symbol versioning by default for linkers that support it
404 - IFF PBM/ILBM bitmap decoder
407 - RTP depacketization of AMR
413 - Kega Game Video (KGV1) decoder
414 - VorbisComment writing for FLAC, Ogg FLAC and Ogg Speex files
415 - RTP depacketization of Theora
416 - HTTP Digest authentication
417 - RTMP/RTMPT/RTMPS/RTMPE/RTMPTE protocol support via librtmp
418 - Psygnosis YOP demuxer and video decoder
419 - spectral extension support in the E-AC-3 decoder
420 - unsharp video filter
421 - RTP hinting in the mov/3gp/mp4 muxer
422 - Dirac in Ogg demuxing
423 - seek to keyframes in Ogg
424 - 4:2:2 and 4:4:4 Theora decoding
425 - 35% faster VP3/Theora decoding
426 - faster AAC decoding
427 - faster H.264 decoding
428 - RealAudio 1.0 (14.4K) encoder
433 - DV50 AKA DVCPRO50 encoder, decoder, muxer and demuxer
434 - TechSmith Camtasia (TSCC) video decoder
435 - IBM Ultimotion (ULTI) video decoder
436 - Sierra Online audio file demuxer and decoder
437 - Apple QuickDraw (qdrw) video decoder
438 - Creative ADPCM audio decoder (16 bits as well as 8 bits schemes)
439 - Electronic Arts Multimedia (WVE/UV2/etc.) file demuxer
440 - Miro VideoXL (VIXL) video decoder
441 - H.261 video encoder
443 - Nullsoft Video (NSV) file demuxer
444 - Shorten audio decoder
446 - Apple Lossless Audio Codec (ALAC) decoder
447 - Winnov WNV1 video decoder
448 - Autodesk Animator Studio Codec (AASC) decoder
449 - Indeo 2 video decoder
450 - Fraps FPS1 video decoder
451 - Snow video encoder/decoder
452 - Sonic audio encoder/decoder
453 - Vorbis audio decoder
454 - Macromedia ADPCM decoder
455 - Duck TrueMotion 2 video decoder
456 - support for decoding FLX and DTA extensions in FLIC files
457 - H.264 custom quantization matrices support
458 - ffserver fixed, it should now be usable again
460 - Real Cooker audio decoder
461 - TrueSpeech audio decoder
462 - WMA2 audio decoder fixed, now all files should play correctly
463 - RealAudio 14.4 and 28.8 decoders fixed
465 - build system improvements
466 - tabs and trailing whitespace removed from the codebase
467 - CamStudio video decoder
468 - AIFF/AIFF-C audio format, encoding and decoding
469 - ADTS AAC file reading and writing
470 - Creative VOC file reading and writing
471 - American Laser Games multimedia (*.mm) playback system
472 - Zip Motion Blocks Video decoder
473 - improved Theora/VP3 decoder
474 - True Audio (TTA) decoder
475 - AVS demuxer and video decoder
477 - Smacker demuxer and decoder
478 - NuppelVideo/MythTV demuxer and RTjpeg decoder
480 - MPEG-2 intra VLC support
481 - MPEG-2 4:2:2 encoder
482 - Flash Screen Video decoder
484 - Chinese AVS decoder
487 - VC-1/WMV3/WMV9 video decoder
490 - VMware video decoder
493 - WavPack lossless audio decoder
494 - Targa (.TGA) picture decoder
495 - Vorbis audio encoder
496 - Delphine Software .cin demuxer/audio and video decoder
497 - Tiertex .seq demuxer/video decoder
499 - TIFF picture encoder and decoder
500 - GIF picture decoder
501 - Intel Music Coder decoder
502 - Zip Motion Blocks Video encoder
504 - Flash Screen Video encoder
505 - Theora encoding via libtheora
508 - GSM-MS encoder and decoder
510 - DXA demuxer and decoder
512 - Gamecube movie (.THP) playback system
513 - Blackfin optimizations
514 - Interplay C93 demuxer and video decoder
515 - Bethsoft VID demuxer and video decoder
518 - V.Flash PTX decoder
519 - RoQ muxer, RoQ audio encoder
520 - Renderware TXD demuxer and decoder
521 - extern C declarations for C++ removed from headers
522 - sws_flags command line option
526 - OS/2 support removed and restored again
529 - additional SPARC (VIS) optimizations
531 - slice-based parallel H.264 decoding
532 - Monkey's Audio demuxer and decoder
533 - AMV audio and video decoder
535 - H.264 PAFF decoding
536 - Nellymoser ASAO decoder
537 - Beam Software SIFF demuxer and decoder
538 - libvorbis Vorbis decoding removed in favor of native decoder
539 - IntraX8 (J-Frame) subdecoder for WMV2 and VC-1
540 - Ogg (Theora, Vorbis and FLAC) muxer
541 - The "device" muxers and demuxers are now in a new libavdevice library
542 - PC Paintbrush PCX decoder
543 - Sun Rasterfile decoder
544 - TechnoTrend PVA demuxer
545 - Linux Media Labs MPEG-4 (LMLM4) demuxer
546 - AVM2 (Flash 9) SWF muxer
547 - QT variant of IMA ADPCM encoder
549 - iPod/iPhone compatible mp4 muxer
551 - MSN TCP Webcam stream demuxer
552 - RL2 demuxer / decoder
555 - non-recursive Makefiles
557 - MAXIS EA XA (.xa) demuxer / decoder
561 - Electronic Arts CMV decoder
562 - Motion Pixels Video decoder
563 - Motion Pixels MVI demuxer
564 - removed animated GIF decoder/demuxer
565 - D-Cinema audio muxer
566 - Electronic Arts TGV decoder
567 - Apple Lossless Audio Codec (ALAC) encoder
569 - floating point PCM encoder/decoder
571 - DV100 AKA DVCPRO HD decoder and demuxer
572 - E-AC-3 support added to AC-3 decoder
573 - Nellymoser ASAO encoder
574 - ASS and SSA demuxer and muxer
575 - liba52 wrapper removed
576 - SVQ3 watermark decoding support
577 - Speex decoding via libspeex
578 - Electronic Arts TGQ decoder
580 - QCELP / PureVoice decoder
582 - hybrid WavPack support
583 - R3D REDCODE demuxer
584 - ALSA support for playback and record
585 - Electronic Arts TQI decoder
586 - OpenJPEG based JPEG 2000 decoder
587 - NC (NC4600) camera file demuxer
588 - Gopher client support
590 - generic metadata API
595 - DV encoder, DV muxer
596 - Microsoft RLE video decoder
597 - Microsoft Video-1 decoder
598 - Apple Animation (RLE) decoder
599 - Apple Graphics (SMC) decoder
600 - Apple Video (RPZA) decoder
602 - Sega FILM (CPK) file demuxer
603 - Westwood multimedia support (VQA & AUD files)
604 - Id Quake II CIN playback support
606 - FLIC playback support
607 - RealVideo 2.0 (RV20) decoder
608 - Duck TrueMotion v1 (DUCK) video decoder
609 - Sierra VMD demuxer and video decoder
610 - MSZH and ZLIB decoder support
614 - rate distortion optimal cbp support
615 - rate distorted optimal ac prediction for MPEG-4
616 - rate distorted optimal lambda->qp support
617 - AAC encoding with libfaac
618 - Sunplus JPEG codec (SP5X) support
619 - use Lagrange multipler instead of QP for ratecontrol
620 - Theora/VP3 decoding support
621 - XA and ADX ADPCM codecs
622 - export MPEG-2 active display area / pan scan
623 - Add support for configuring with IBM XLC
624 - floating point AAN DCT
625 - initial support for zygo video (not complete)
627 - new audio/video parser API
629 - av_read_frame() and av_seek_frame() support
630 - missing last frame fixes
631 - seek by mouse in ffplay
632 - noise reduction of DCT coefficients
633 - H.263 OBMC & 4MV support
634 - H.263 alternative inter vlc support
636 - H.263 slice structured mode
637 - interlaced DCT support for MPEG-2 encoding
638 - stuffing to stay above min_bitrate
639 - MB type & QP visualization
640 - frame stepping for ffplay
641 - interlaced motion estimation
642 - alternate scantable support
643 - SVCD scan offset support
646 - quantizer noise shaping
647 - G.726 ADPCM audio codec
649 - multithreaded/SMP motion estimation
650 - multithreaded/SMP encoding for MPEG-1/MPEG-2/MPEG-4/H.263
651 - multithreaded/SMP decoding for MPEG-2
653 - Metrowerks CodeWarrior suppport
654 - H.263+ custom pcf support
655 - nicer output for 'ffmpeg -formats'
657 - SGI image format, encoding and decoding
658 - H.264 loop filter support
659 - H.264 CABAC support
660 - nicer looking arrows for the motion vector visualization
661 - improved VCD support
662 - audio timestamp drift compensation
663 - MPEG-2 YUV 422/444 support
664 - polyphase kaiser windowed sinc and blackman nuttall windowed sinc audio resample
665 - better image scaling
667 - correctly interleave packets during encoding
668 - VIS optimized motion compensation
669 - intra_dc_precision>0 encoding support
670 - support reuse of motion vectors/MB types/field select values of the source video
671 - more accurate deblock filter
673 - many optimizations and bugfixes
674 - FunCom ISS audio file demuxer and according ADPCM decoding
679 - MPEG-2 video encoding (Michael)
680 - Id RoQ playback subsystem (Mike Melanson and Tim Ferguson)
681 - Wing Commander III Movie (.mve) file playback subsystem (Mike Melanson
683 - Xan DPCM audio decoder (Mario Brito)
684 - Interplay MVE playback subsystem (Mike Melanson)
685 - Duck DK3 and DK4 ADPCM audio decoders (Mike Melanson)
690 - RealAudio 1.0 (14_4) and 2.0 (28_8) native decoders. Author unknown, code from mplayerhq
691 (originally from public domain player for Amiga at http://www.honeypot.net/audio)
692 - current version now also compiles with older GCC (Fabrice)
693 - 4X multimedia playback system including 4xm file demuxer (Mike
694 Melanson), and 4X video and audio codecs (Michael)
695 - Creative YUV (CYUV) decoder (Mike Melanson)
696 - FFV1 codec (our very simple lossless intra only codec, compresses much better
697 than HuffYUV) (Michael)
698 - ASV1 (Asus), H.264, Intel indeo3 codecs have been added (various)
699 - tiny PNG encoder and decoder, tiny GIF decoder, PAM decoder (PPM with
700 alpha support), JPEG YUV colorspace support. (Fabrice Bellard)
701 - ffplay has been replaced with a newer version which uses SDL (optionally)
702 for multiplatform support (Fabrice)
703 - Sorenson Version 3 codec (SVQ3) support has been added (decoding only) - donated
705 - AMR format has been added (Johannes Carlsson)
706 - 3GP support has been added (Johannes Carlsson)
707 - VP3 codec has been added (Mike Melanson)
708 - more MPEG-1/2 fixes
709 - better multiplatform support, MS Visual Studio fixes (various)
710 - AltiVec optimizations (Magnus Damn and others)
711 - SH4 processor support has been added (BERO)
712 - new public interfaces (avcodec_get_pix_fmt) (Roman Shaposhnick)
713 - VOB streaming support (Brian Foley)
714 - better MP3 autodetection (Andriy Rysin)
715 - qpel encoding (Michael)
716 - 4mv+b frames encoding finally fixed (Michael)
717 - chroma ME (Michael)
718 - 5 comparison functions for ME (Michael)
719 - B-frame encoding speedup (Michael)
720 - WMV2 codec (unfinished - Michael)
721 - user specified diamond size for EPZS (Michael)
722 - Playstation STR playback subsystem, still experimental (Mike and Michael)
723 - ASV2 codec (Michael)
724 - CLJR decoder (Alex)
726 .. And lots more new enhancements and fixes.
731 - completely new integer only MPEG audio layer 1/2/3 decoder rewritten
733 - Recoded DCT and motion vector search with gcc (no longer depends on nasm)
734 - fix quantization bug in AC3 encoder
735 - added PCM codecs and format. Corrected WAV/AVI/ASF PCM issues
736 - added prototype ffplay program
737 - added GOB header parsing on H.263/H.263+ decoder (Juanjo)
738 - bug fix on MCBPC tables of H.263 (Juanjo)
739 - bug fix on DC coefficients of H.263 (Juanjo)
740 - added Advanced Prediction Mode on H.263/H.263+ decoder (Juanjo)
741 - now we can decode H.263 streams found in QuickTime files (Juanjo)
742 - now we can decode H.263 streams found in VIVO v1 files(Juanjo)
743 - preliminary RTP "friendly" mode for H.263/H.263+ coding. (Juanjo)
744 - added GOB header for H.263/H.263+ coding on RTP mode (Juanjo)
745 - now H.263 picture size is returned on the first decoded frame (Juanjo)
746 - added first regression tests
747 - added MPEG-2 TS demuxer
748 - new demux API for libav
749 - more accurate and faster IDCT (Michael)
750 - faster and entropy-controlled motion search (Michael)
751 - two pass video encoding (Michael)
752 - new video rate control (Michael)
753 - added MSMPEG4V1, MSMPEGV2 and WMV1 support (Michael)
754 - great performance improvement of video encoders and decoders (Michael)
755 - new and faster bit readers and vlc parsers (Michael)
756 - high quality encoding mode: tries all macroblock/VLC types (Michael)
757 - added DV video decoder
758 - preliminary RTP/RTSP support in ffserver and libavformat
759 - H.263+ AIC decoding/encoding support (Juanjo)
760 - VCD MPEG-PS mode (Juanjo)
761 - PSNR stuff (Juanjo)
762 - simple stats output (Juanjo)
763 - 16-bit and 15-bit RGB/BGR/GBR support (Bisqwit)
768 - some header fixes (Zdenek Kabelac <kabi at informatics.muni.cz>)
769 - many MMX optimizations (Nick Kurshev <nickols_k at mail.ru>)
770 - added configure system (actually a small shell script)
771 - added MPEG audio layer 1/2/3 decoding using LGPL'ed mpglib by
772 Michael Hipp (temporary solution - waiting for integer only
774 - fixed VIDIOCSYNC interrupt
775 - added Intel H.263 decoding support ('I263' AVI fourCC)
776 - added Real Video 1.0 decoding (needs further testing)
777 - simplified image formats again. Added PGM format (=grey
778 pgm). Renamed old PGM to PGMYUV.
779 - fixed msmpeg4 slice issues (tell me if you still find problems)
780 - fixed OpenDivX bugs with newer versions (added VOL header decoding)
781 - added support for MPlayer interface
782 - added macroblock skip optimization
783 - added MJPEG decoder
784 - added mmx/mmxext IDCT from libmpeg2
785 - added pgmyuvpipe, ppm, and ppm_pipe formats (original patch by Celer
786 <celer at shell.scrypt.net>)
787 - added pixel format conversion layer (e.g. for MJPEG or PPM)
788 - added deinterlacing option
790 - MPEG-4 vol header fixes (Jonathan Marsden <snmjbm at pacbell.net>)
791 - ARM optimizations (Lionel Ulmer <lionel.ulmer at free.fr>).
792 - Windows porting of file converter
793 - added MJPEG raw format (input/ouput)
794 - added JPEG image format support (input/output)
799 - fixed some std header definitions (Bjorn Lindgren
800 <bjorn.e.lindgren at telia.com>).
801 - added MPEG demuxer (MPEG-1 and 2 compatible).
803 - added prototype RM demuxer
804 - added AC3 decoding (done with libac3 by Aaron Holtzman)
805 - added decoding codec parameter guessing (.e.g. for MPEG, because the
806 header does not include them)
807 - fixed header generation in MPEG-1, AVI and ASF muxer: wmplayer can now
808 play them (only tested video)
809 - fixed H.263 white bug
810 - fixed phase rounding in img resample filter
811 - add MMX code for polyphase img resample filter
812 - added CPU autodetection
813 - added generic title/author/copyright/comment string handling (ASF and RM
815 - added SWF demux to extract MP3 track (not usable yet because no MP3
817 - added fractional frame rate support
818 - codecs are no longer searched by read_header() (should fix ffserver
824 - BGR24 patch (initial patch by Jeroen Vreeken <pe1rxq at amsat.org>)
825 - fixed raw yuv output
826 - added motion rounding support in MPEG-4
827 - fixed motion bug rounding in MSMPEG4
828 - added B-frame handling in video core
829 - added full MPEG-1 decoding support
830 - added partial (frame only) MPEG-2 support
831 - changed the FOURCC code for H.263 to "U263" to be able to see the
832 +AVI/H.263 file with the UB Video H.263+ decoder. MPlayer works with
833 this +codec ;) (JuanJo).
834 - Halfpel motion estimation after MB type selection (JuanJo)
835 - added pgm and .Y.U.V output format
836 - suppressed 'img:' protocol. Simply use: /tmp/test%d.[pgm|Y] as input or
838 - added pgmpipe I/O format (original patch from Martin Aumueller
839 <lists at reserv.at>, but changed completely since we use a format
840 instead of a protocol)
845 - added H.263/MPEG-4/MSMPEG4 decoding support. MPEG-4 decoding support
846 (for OpenDivX) is almost complete: 8x8 MVs and rounding are
847 missing. MSMPEG4 support is complete.
848 - added prototype MPEG-1 decoder. Only I- and P-frames handled yet (it
849 can decode ffmpeg MPEGs :-)).
850 - added libavcodec API documentation (see apiexample.c).
851 - fixed image polyphase bug (the bottom of some images could be
853 - added support for non clipped motion vectors (decoding only)
854 and image sizes non-multiple of 16
855 - added support for AC prediction (decoding only)
856 - added file overwrite confirmation (can be disabled with -y)
857 - added custom size picture to H.263 using H.263+ (Juanjo)
862 - added MSMPEG4 (aka DivX) compatible encoder. Changed default codec
863 of AVI and ASF to DIV3.
864 - added -me option to set motion estimation method
865 (default=log). suppressed redundant -hq option.
866 - added options -acodec and -vcodec to force a given codec (useful for
869 - improved dct_quantize speed
870 - factorized some motion estimation code
875 - removing grab code from ffserver and moved it to ffmpeg. Added
876 multistream support to ffmpeg.
877 - added timeshifting support for live feeds (option ?date=xxx in the
879 - added high quality image resize code with polyphase filter (need
880 mmx/see optimization). Enable multiple image size support in ffserver.
881 - added multi live feed support in ffserver
882 - suppressed master feature from ffserver (it should be done with an
883 external program which opens the .ffm url and writes it to another
885 - added preliminary support for video stream parsing (WAV and AVI half
886 done). Added proper support for audio/video file conversion in
888 - added preliminary support for video file sending from ffserver
889 - redesigning I/O subsystem: now using URL based input and output
891 - added WAV format support
892 - added "tty user interface" to ffmpeg to stop grabbing gracefully
893 - added MMX/SSE optimizations to SAD (Sums of Absolutes Differences)
894 (Juan J. Sierralta P. a.k.a. "Juanjo" <juanjo at atmlab.utfsm.cl>)
895 - added MMX DCT from mpeg2_movie 1.5 (Juanjo)
896 - added new motion estimation algorithms, log and phods (Juanjo)
897 - changed directories: libav for format handling, libavcodec for
903 - added stereo in MPEG audio encoder
908 - added 'high quality' mode which use motion vectors. It can be used in
909 real time at low resolution.
910 - fixed rounding problems which caused quality problems at high
911 bitrates and large GOP size
914 version 0.3.2: small fixes
920 version 0.3.1: added avi/divx support
923 - added MPEG-4 codec compatible with OpenDivX. It is based on the H.263 codec
924 - added sound for flash format (not tested)
927 version 0.3: initial public release