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
11 - av_basename and av_dirname
12 - adobe and limelight publisher authentication in RTMP
13 - VDPAU hardware acceleration through normal hwaccel
18 - ashowinfo audio filter
19 - 24-bit FLAC encoding
21 - deprecated the avconv -vol option. the volume filter is to be used instead.
22 - multi-channel ALAC encoding up to 7.1
23 - TAK demuxer, parser, and decoder
24 - adaptive frame-level multithreading for H.264
28 - metadata (INFO tag) support in WAV muxer
29 - support for building DLLs using MSVC
30 - remove avserver daemon mode
31 - support building on the Plan 9 operating system
32 - ffv1: support version 1.3
37 - XWD encoder and decoder
38 - Support for fragmentation in the mov/mp4 muxer
39 - ISMV (Smooth Streaming) muxer
40 - CDXL demuxer and decoder
41 - Apple ProRes encoder
42 - Sun Rasterfile Encoder
44 - ID3v2 attached pictures reading and writing
45 - WMA Lossless decoder
47 - RealAudio Lossless decoder
49 - drop support for avconv without libavfilter
50 - add libavresample audio conversion library
51 - audio filters support in libavfilter and avconv
55 - avprobe output is now standard INI or JSON. The old format can still
58 - channelsplit audio filter
59 - RTMPT protocol support
60 - iLBC encoding/decoding via libilbc
61 - Microsoft Screen 1 decoder
63 - audio channel mapping filter
64 - Microsoft ATC Screen decoder
66 - TechSmith Screen Codec 2 decoder
67 - AAC encoding via libfdk-aac
68 - Microsoft Expression Encoder Screen decoder
69 - RTMPS protocol support
70 - RTMPTS protocol support
71 - JPEG 2000 encoding support through OpenJPEG
72 - G.723.1 demuxer and decoder
73 - RTMPE protocol support
74 - RTMPTE protocol support
75 - Canopus Lossless Codec decoder
76 - avconv -shortest option is now per-output file,
77 -pass and -passlogfile are now per-output stream
79 - Microsoft Screen 2 decoder
80 - RTP depacketization of JPEG
81 - Smooth Streaming live segmenter muxer
82 - RTP packetization of JPEG
83 - Opus decoder and encoder using libopus
84 - remove -same_quant, it hasn't worked for years
85 - support for building with MSVC
96 - Automatic thread count based on detection number of (available) CPU cores
97 - Deprecate libpostproc. If desired, the switch --enable-postproc will
98 enable it but it may be removed in a later Libav release.
99 - rv34: frame-level multi-threading
100 - optimized iMDCT transform on x86 using SSE for for mpegaudiodec
106 - Flash Screen Video 2 decoder
107 - ffplay/ffprobe/ffserver renamed to avplay/avprobe/avserver
108 - ffmpeg deprecated, added avconv, which is almost the same for now, except
109 for a few incompatible changes in the options, which will hopefully make them
110 easier to use. The changes are:
111 * The options placement is now strictly enforced! While in theory the
112 options for ffmpeg should be given in [input options] -i INPUT [output
113 options] OUTPUT order, in practice it was possible to give output options
114 before the -i and it mostly worked. Except when it didn't - the behavior was
115 a bit inconsistent. In avconv, it is not possible to mix input and output
116 options. All non-global options are reset after an input or output filename.
117 * All per-file options are now truly per-file - they apply only to the next
118 input or output file and specifying different values for different files
119 will now work properly (notably -ss and -t options).
120 * All per-stream options are now truly per-stream - it is possible to
121 specify which stream(s) should a given option apply to. See the Stream
122 specifiers section in the avconv manual for details.
123 * In ffmpeg some options (like -newvideo/-newaudio/...) are irregular in the
124 sense that they're specified after the output filename instead of before,
125 like all other options. In avconv this irregularity is removed, all options
126 apply to the next input or output file.
127 * -newvideo/-newaudio/-newsubtitle options were removed. Not only were they
128 irregular and highly confusing, they were also redundant. In avconv the -map
129 option will create new streams in the output file and map input streams to
130 them. E.g. avconv -i INPUT -map 0 OUTPUT will create an output stream for
131 each stream in the first input file.
132 * The -map option now has slightly different and more powerful syntax:
133 + Colons (':') are used to separate file index/stream type/stream index
134 instead of dots. Comma (',') is used to separate the sync stream instead
135 of colon.. This is done for consistency with other options.
136 + It's possible to specify stream type. E.g. -map 0:a:2 creates an
137 output stream from the third input audio stream.
138 + Omitting the stream index now maps all the streams of the given type,
139 not just the first. E.g. -map 0:s creates output streams for all the
140 subtitle streams in the first input file.
141 + Since -map can now match multiple streams, negative mappings were
142 introduced. Negative mappings disable some streams from an already
143 defined map. E.g. '-map 0 -map -0:a:1' means 'create output streams for
144 all the stream in the first input file, except for the second audio
146 * There is a new option -c (or -codec) for choosing the decoder/encoder to
147 use, which allows to precisely specify target stream(s) consistently with
148 other options. E.g. -c:v lib264 sets the codec for all video streams, -c:a:0
149 libvorbis sets the codec for the first audio stream and -c copy copies all
150 the streams without reencoding. Old -vcodec/-acodec/-scodec options are now
152 * It is now possible to precisely specify which stream should an AVOption
153 apply to. E.g. -b:v:0 2M sets the bitrate for the first video stream, while
154 -b:a 128k sets the bitrate for all audio streams. Note that the old -ab 128k
155 syntax is deprecated and will stop working soon.
156 * -map_chapters now takes only an input file index and applies to the next
157 output file. This is consistent with how all the other options work.
158 * -map_metadata now takes only an input metadata specifier and applies to
159 the next output file. Output metadata specifier is now part of the option
160 name, similarly to the AVOptions/map/codec feature above.
161 * -metadata can now be used to set metadata on streams and chapters, e.g.
162 -metadata:s:1 language=eng sets the language of the first stream to 'eng'.
163 This made -vlang/-alang/-slang options redundant, so they were removed.
164 * -qscale option now uses stream specifiers and applies to all streams, not
165 just video. I.e. plain -qscale number would now apply to all streams. To get
166 the old behavior, use -qscale:v. Also there is now a shortcut -q for -qscale
167 and -aq is now an alias for -q:a.
168 * -vbsf/-absf/-sbsf options were removed and replaced by a -bsf option which
169 uses stream specifiers. Use -bsf:v/a/s instead of the old options.
170 * -itsscale option now uses stream specifiers, so its argument is only the
172 * -intra option was removed, use -g 0 for the same effect.
173 * -psnr option was removed, use -flags +psnr for the same effect.
174 * -vf option is now an alias to the new -filter option, which uses stream specifiers.
175 * -vframes/-aframes/-dframes options are now aliases to the new -frames option.
176 * -vtag/-atag/-stag options are now aliases to the new -tag option.
178 - Windows Media Image decoder
182 - libcdio-paranoia input device for audio CD grabbing
184 - Apple ProRes decoder
185 - CELT in Ogg demuxing
186 - VC-1 interlaced decoding
187 - lut, lutrgb, and lutyuv filters
190 - Speex encoding via libspeex
191 - 4:2:2 H.264 decoding support
192 - 4:2:2 and 4:4:4 H.264 encoding with libx264
193 - Pulseaudio input device
194 - replacement Indeo 3 decoder
195 - TLS/SSL and HTTPS protocol support
196 - AVOptions API rewritten and documented
197 - most of CODEC_FLAG2_*, some CODEC_FLAG_* and many codec-specific fields in
198 AVCodecContext deprecated. Codec private options should be used instead.
199 - Properly working defaults in libx264 wrapper, support for native presets.
200 - Encrypted OMA files support
201 - Discworld II BMV decoding support
203 - OS X Video Decoder Acceleration (VDA) support
204 - CRI ADX audio format muxer and demuxer
205 - Playstation Portable PMP format demuxer
206 - PCM format support in OMA demuxer
208 - Dxtory capture format decoder
209 - v410 QuickTime uncompressed 4:4:4 10-bit encoder and decoder
211 - Simple segmenting muxer
218 - E-AC-3 audio encoder
219 - ac3enc: add channel coupling support
220 - floating-point sample format support for (E-)AC-3, DCA, AAC, Vorbis decoders
221 - H.264/MPEG frame-level multithreading
222 - av_metadata_* functions renamed to av_dict_* and moved to libavutil
223 - 4:4:4 H.264 decoding support
224 - 10-bit H.264 optimizations for x86
225 - bump libswscale for recently reported ABI break
230 - VP8 frame-level multithreading
231 - NEON optimizations for VP8
232 - removed a lot of deprecated API cruft
233 - FFT and IMDCT optimizations for AVX (Sandy Bridge) processors
235 - SMPTE 302M AES3 audio decoder
236 - ffmpeg no longer quits after the 'q' key is pressed; use 'ctrl+c' instead
237 - 9bit and 10bit per sample support in the H.264 decoder
242 - WebM support in Matroska de/muxer
243 - low overhead Ogg muxing
245 - VP8 de/encoding via libvpx
246 - Demuxer for On2's IVF format
247 - Pictor/PC Paint decoder
249 - libfaad2 wrapper removed
250 - DTS-ES extension (XCh) decoding support
252 - RTSP tunneling over HTTP
253 - RTP depacketization of SVQ3
254 - -strict inofficial replaced by -strict unofficial
255 - ffplay -exitonkeydown and -exitonmousedown options added
256 - native GSM / GSM MS decoder
257 - RTP depacketization of QDM2
258 - ANSI/ASCII art playback system
259 - Lego Mindstorms RSO de/muxer
260 - SubRip subtitle file muxer and demuxer
261 - Chinese AVS encoding via libxavs
262 - ffprobe -show_packets option added
263 - RTP packetization of Theora and Vorbis
264 - RTP depacketization of MP4A-LATM
265 - RTP packetization and depacketization of VP8
267 - Apple HTTP Live Streaming demuxer
270 - G.722 ADPCM audio encoder/decoder
273 - frei0r wrapper filter
274 - change crop filter syntax to width:height:x:y
275 - make the crop filter accept parametric expressions
276 - make ffprobe accept AVFormatContext options
279 - Demuxer for Leitch/Harris' VR native stream format (LXF)
280 - RTP depacketization of the X-QT QuickTime format
281 - SAP (Session Announcement Protocol, RFC 2974) muxer and demuxer
283 - ffmpeg -crop* options removed
284 - transpose filter added
285 - ffmpeg -force_key_frames option added
286 - demuxer for receiving raw rtp:// URLs without an SDP description
287 - single stream LATM/LOAS decoder
288 - setpts filter added
289 - Win64 support for optimized x86 assembly functions
290 - MJPEG/AVI1 to JPEG/JFIF bitstream filter
291 - ASS subtitle encoder and decoder
292 - IEC 61937 encapsulation for E-AC-3, TrueHD, DTS-HD (for HDMI passthrough)
293 - overlay filter added
294 - rename aspect filter to setdar, and pixelaspect to setsar
296 - Mobotix .mxg demuxer
297 - frei0r source added
298 - hqdn3d filter added
299 - RTP depacketization of QCELP
301 - gradfun filter added
303 - replace the ocv_smooth filter with a more generic ocv filter
304 - Windows Televison (WTV) demuxer
305 - FFmpeg metadata format muxer and demuxer
306 - SubRip (srt) subtitle decoder
307 - floating-point AC-3 encoder added
309 - ffmpeg -copytb option added
311 - Wing Commander IV movies decoder added
313 - Bink version 'b' audio and video decoder
314 - Bitmap Brothers JV playback system
315 - Apple HTTP Live Streaming protocol handler
316 - sndio support for playback and record
317 - Linux framebuffer input device added
318 - Chronomaster DFA decoder
319 - Mobotix MxPEG decoder
320 - AAC encoding via libvo-aacenc
321 - AMR-WB encoding via libvo-amrwbenc
323 - fieldorder video filter added
328 - PB-frame decoding for H.263
329 - deprecated vhook subsystem removed
330 - deprecated old scaler removed
332 - Alpha channel scaler
334 - RTP packetization of H.263
335 - RTP packetization of AMR
336 - RTP depacketization of Vorbis
337 - CorePNG decoding support
338 - Cook multichannel decoding support
339 - introduced avlanguage helpers in libavformat
340 - 8088flex TMV demuxer and decoder
341 - per-stream language-tags extraction in asfdec
342 - V210 decoder and encoder
343 - remaining GPL parts in AC-3 decoder converted to LGPL
345 - SoX native format muxer and demuxer
346 - AMR-NB decoding/encoding, AMR-WB decoding via OpenCORE libraries
348 - Electronic Arts Madcow decoder
349 - DivX (XSUB) subtitle encoder
350 - nonfree libamr support for AMR-NB/WB decoding/encoding removed
351 - experimental AAC encoder
352 - RTP depacketization of ASF and RTSP from WMS servers
353 - RTMP support in libavformat
354 - noX handling for OPT_BOOL X options
356 - IEC-61937 compatible Muxer
358 - Bluray (PGS) subtitle decoder
359 - LPCM support in MPEG-TS (HDMV RID as found on Blu-ray disks)
361 - Core Audio Format demuxer
363 - MD STUDIO audio demuxer
364 - RF64 support in WAV demuxer
365 - MPEG-4 Audio Lossless Coding (ALS) decoder
366 - -formats option split into -formats, -codecs, -bsfs, and -protocols
368 - CDG demuxer and decoder
370 - Auravision Aura 1 and 2 decoders
371 - Deluxe Paint Animation playback system
373 - Adobe Filmstrip muxer and demuxer
374 - RTP depacketization of H.263
375 - Bink demuxer and audio/video decoders
376 - enable symbol versioning by default for linkers that support it
377 - IFF PBM/ILBM bitmap decoder
380 - RTP depacketization of AMR
386 - Kega Game Video (KGV1) decoder
387 - VorbisComment writing for FLAC, Ogg FLAC and Ogg Speex files
388 - RTP depacketization of Theora
389 - HTTP Digest authentication
390 - RTMP/RTMPT/RTMPS/RTMPE/RTMPTE protocol support via librtmp
391 - Psygnosis YOP demuxer and video decoder
392 - spectral extension support in the E-AC-3 decoder
393 - unsharp video filter
394 - RTP hinting in the mov/3gp/mp4 muxer
395 - Dirac in Ogg demuxing
396 - seek to keyframes in Ogg
397 - 4:2:2 and 4:4:4 Theora decoding
398 - 35% faster VP3/Theora decoding
399 - faster AAC decoding
400 - faster H.264 decoding
401 - RealAudio 1.0 (14.4K) encoder
406 - DV50 AKA DVCPRO50 encoder, decoder, muxer and demuxer
407 - TechSmith Camtasia (TSCC) video decoder
408 - IBM Ultimotion (ULTI) video decoder
409 - Sierra Online audio file demuxer and decoder
410 - Apple QuickDraw (qdrw) video decoder
411 - Creative ADPCM audio decoder (16 bits as well as 8 bits schemes)
412 - Electronic Arts Multimedia (WVE/UV2/etc.) file demuxer
413 - Miro VideoXL (VIXL) video decoder
414 - H.261 video encoder
416 - Nullsoft Video (NSV) file demuxer
417 - Shorten audio decoder
419 - Apple Lossless Audio Codec (ALAC) decoder
420 - Winnov WNV1 video decoder
421 - Autodesk Animator Studio Codec (AASC) decoder
422 - Indeo 2 video decoder
423 - Fraps FPS1 video decoder
424 - Snow video encoder/decoder
425 - Sonic audio encoder/decoder
426 - Vorbis audio decoder
427 - Macromedia ADPCM decoder
428 - Duck TrueMotion 2 video decoder
429 - support for decoding FLX and DTA extensions in FLIC files
430 - H.264 custom quantization matrices support
431 - ffserver fixed, it should now be usable again
433 - Real Cooker audio decoder
434 - TrueSpeech audio decoder
435 - WMA2 audio decoder fixed, now all files should play correctly
436 - RealAudio 14.4 and 28.8 decoders fixed
438 - build system improvements
439 - tabs and trailing whitespace removed from the codebase
440 - CamStudio video decoder
441 - AIFF/AIFF-C audio format, encoding and decoding
442 - ADTS AAC file reading and writing
443 - Creative VOC file reading and writing
444 - American Laser Games multimedia (*.mm) playback system
445 - Zip Motion Blocks Video decoder
446 - improved Theora/VP3 decoder
447 - True Audio (TTA) decoder
448 - AVS demuxer and video decoder
450 - Smacker demuxer and decoder
451 - NuppelVideo/MythTV demuxer and RTjpeg decoder
453 - MPEG-2 intra VLC support
454 - MPEG-2 4:2:2 encoder
455 - Flash Screen Video decoder
457 - Chinese AVS decoder
460 - VC-1/WMV3/WMV9 video decoder
463 - VMware video decoder
466 - WavPack lossless audio decoder
467 - Targa (.TGA) picture decoder
468 - Vorbis audio encoder
469 - Delphine Software .cin demuxer/audio and video decoder
470 - Tiertex .seq demuxer/video decoder
472 - TIFF picture encoder and decoder
473 - GIF picture decoder
474 - Intel Music Coder decoder
475 - Zip Motion Blocks Video encoder
477 - Flash Screen Video encoder
478 - Theora encoding via libtheora
481 - GSM-MS encoder and decoder
483 - DXA demuxer and decoder
485 - Gamecube movie (.THP) playback system
486 - Blackfin optimizations
487 - Interplay C93 demuxer and video decoder
488 - Bethsoft VID demuxer and video decoder
491 - V.Flash PTX decoder
492 - RoQ muxer, RoQ audio encoder
493 - Renderware TXD demuxer and decoder
494 - extern C declarations for C++ removed from headers
495 - sws_flags command line option
499 - OS/2 support removed and restored again
502 - additional SPARC (VIS) optimizations
504 - slice-based parallel H.264 decoding
505 - Monkey's Audio demuxer and decoder
506 - AMV audio and video decoder
508 - H.264 PAFF decoding
509 - Nellymoser ASAO decoder
510 - Beam Software SIFF demuxer and decoder
511 - libvorbis Vorbis decoding removed in favor of native decoder
512 - IntraX8 (J-Frame) subdecoder for WMV2 and VC-1
513 - Ogg (Theora, Vorbis and FLAC) muxer
514 - The "device" muxers and demuxers are now in a new libavdevice library
515 - PC Paintbrush PCX decoder
516 - Sun Rasterfile decoder
517 - TechnoTrend PVA demuxer
518 - Linux Media Labs MPEG-4 (LMLM4) demuxer
519 - AVM2 (Flash 9) SWF muxer
520 - QT variant of IMA ADPCM encoder
522 - iPod/iPhone compatible mp4 muxer
524 - MSN TCP Webcam stream demuxer
525 - RL2 demuxer / decoder
528 - non-recursive Makefiles
530 - MAXIS EA XA (.xa) demuxer / decoder
534 - Electronic Arts CMV decoder
535 - Motion Pixels Video decoder
536 - Motion Pixels MVI demuxer
537 - removed animated GIF decoder/demuxer
538 - D-Cinema audio muxer
539 - Electronic Arts TGV decoder
540 - Apple Lossless Audio Codec (ALAC) encoder
542 - floating point PCM encoder/decoder
544 - DV100 AKA DVCPRO HD decoder and demuxer
545 - E-AC-3 support added to AC-3 decoder
546 - Nellymoser ASAO encoder
547 - ASS and SSA demuxer and muxer
548 - liba52 wrapper removed
549 - SVQ3 watermark decoding support
550 - Speex decoding via libspeex
551 - Electronic Arts TGQ decoder
553 - QCELP / PureVoice decoder
555 - hybrid WavPack support
556 - R3D REDCODE demuxer
557 - ALSA support for playback and record
558 - Electronic Arts TQI decoder
559 - OpenJPEG based JPEG 2000 decoder
560 - NC (NC4600) camera file demuxer
561 - Gopher client support
563 - generic metadata API
568 - DV encoder, DV muxer
569 - Microsoft RLE video decoder
570 - Microsoft Video-1 decoder
571 - Apple Animation (RLE) decoder
572 - Apple Graphics (SMC) decoder
573 - Apple Video (RPZA) decoder
575 - Sega FILM (CPK) file demuxer
576 - Westwood multimedia support (VQA & AUD files)
577 - Id Quake II CIN playback support
579 - FLIC playback support
580 - RealVideo 2.0 (RV20) decoder
581 - Duck TrueMotion v1 (DUCK) video decoder
582 - Sierra VMD demuxer and video decoder
583 - MSZH and ZLIB decoder support
587 - rate distortion optimal cbp support
588 - rate distorted optimal ac prediction for MPEG-4
589 - rate distorted optimal lambda->qp support
590 - AAC encoding with libfaac
591 - Sunplus JPEG codec (SP5X) support
592 - use Lagrange multipler instead of QP for ratecontrol
593 - Theora/VP3 decoding support
594 - XA and ADX ADPCM codecs
595 - export MPEG-2 active display area / pan scan
596 - Add support for configuring with IBM XLC
597 - floating point AAN DCT
598 - initial support for zygo video (not complete)
600 - new audio/video parser API
602 - av_read_frame() and av_seek_frame() support
603 - missing last frame fixes
604 - seek by mouse in ffplay
605 - noise reduction of DCT coefficients
606 - H.263 OBMC & 4MV support
607 - H.263 alternative inter vlc support
609 - H.263 slice structured mode
610 - interlaced DCT support for MPEG-2 encoding
611 - stuffing to stay above min_bitrate
612 - MB type & QP visualization
613 - frame stepping for ffplay
614 - interlaced motion estimation
615 - alternate scantable support
616 - SVCD scan offset support
619 - quantizer noise shaping
620 - G.726 ADPCM audio codec
622 - multithreaded/SMP motion estimation
623 - multithreaded/SMP encoding for MPEG-1/MPEG-2/MPEG-4/H.263
624 - multithreaded/SMP decoding for MPEG-2
626 - Metrowerks CodeWarrior suppport
627 - H.263+ custom pcf support
628 - nicer output for 'ffmpeg -formats'
630 - SGI image format, encoding and decoding
631 - H.264 loop filter support
632 - H.264 CABAC support
633 - nicer looking arrows for the motion vector visualization
634 - improved VCD support
635 - audio timestamp drift compensation
636 - MPEG-2 YUV 422/444 support
637 - polyphase kaiser windowed sinc and blackman nuttall windowed sinc audio resample
638 - better image scaling
640 - correctly interleave packets during encoding
641 - VIS optimized motion compensation
642 - intra_dc_precision>0 encoding support
643 - support reuse of motion vectors/MB types/field select values of the source video
644 - more accurate deblock filter
646 - many optimizations and bugfixes
647 - FunCom ISS audio file demuxer and according ADPCM decoding
652 - MPEG-2 video encoding (Michael)
653 - Id RoQ playback subsystem (Mike Melanson and Tim Ferguson)
654 - Wing Commander III Movie (.mve) file playback subsystem (Mike Melanson
656 - Xan DPCM audio decoder (Mario Brito)
657 - Interplay MVE playback subsystem (Mike Melanson)
658 - Duck DK3 and DK4 ADPCM audio decoders (Mike Melanson)
663 - RealAudio 1.0 (14_4) and 2.0 (28_8) native decoders. Author unknown, code from mplayerhq
664 (originally from public domain player for Amiga at http://www.honeypot.net/audio)
665 - current version now also compiles with older GCC (Fabrice)
666 - 4X multimedia playback system including 4xm file demuxer (Mike
667 Melanson), and 4X video and audio codecs (Michael)
668 - Creative YUV (CYUV) decoder (Mike Melanson)
669 - FFV1 codec (our very simple lossless intra only codec, compresses much better
670 than HuffYUV) (Michael)
671 - ASV1 (Asus), H.264, Intel indeo3 codecs have been added (various)
672 - tiny PNG encoder and decoder, tiny GIF decoder, PAM decoder (PPM with
673 alpha support), JPEG YUV colorspace support. (Fabrice Bellard)
674 - ffplay has been replaced with a newer version which uses SDL (optionally)
675 for multiplatform support (Fabrice)
676 - Sorenson Version 3 codec (SVQ3) support has been added (decoding only) - donated
678 - AMR format has been added (Johannes Carlsson)
679 - 3GP support has been added (Johannes Carlsson)
680 - VP3 codec has been added (Mike Melanson)
681 - more MPEG-1/2 fixes
682 - better multiplatform support, MS Visual Studio fixes (various)
683 - AltiVec optimizations (Magnus Damn and others)
684 - SH4 processor support has been added (BERO)
685 - new public interfaces (avcodec_get_pix_fmt) (Roman Shaposhnick)
686 - VOB streaming support (Brian Foley)
687 - better MP3 autodetection (Andriy Rysin)
688 - qpel encoding (Michael)
689 - 4mv+b frames encoding finally fixed (Michael)
690 - chroma ME (Michael)
691 - 5 comparison functions for ME (Michael)
692 - B-frame encoding speedup (Michael)
693 - WMV2 codec (unfinished - Michael)
694 - user specified diamond size for EPZS (Michael)
695 - Playstation STR playback subsystem, still experimental (Mike and Michael)
696 - ASV2 codec (Michael)
697 - CLJR decoder (Alex)
699 .. And lots more new enhancements and fixes.
704 - completely new integer only MPEG audio layer 1/2/3 decoder rewritten
706 - Recoded DCT and motion vector search with gcc (no longer depends on nasm)
707 - fix quantization bug in AC3 encoder
708 - added PCM codecs and format. Corrected WAV/AVI/ASF PCM issues
709 - added prototype ffplay program
710 - added GOB header parsing on H.263/H.263+ decoder (Juanjo)
711 - bug fix on MCBPC tables of H.263 (Juanjo)
712 - bug fix on DC coefficients of H.263 (Juanjo)
713 - added Advanced Prediction Mode on H.263/H.263+ decoder (Juanjo)
714 - now we can decode H.263 streams found in QuickTime files (Juanjo)
715 - now we can decode H.263 streams found in VIVO v1 files(Juanjo)
716 - preliminary RTP "friendly" mode for H.263/H.263+ coding. (Juanjo)
717 - added GOB header for H.263/H.263+ coding on RTP mode (Juanjo)
718 - now H.263 picture size is returned on the first decoded frame (Juanjo)
719 - added first regression tests
720 - added MPEG-2 TS demuxer
721 - new demux API for libav
722 - more accurate and faster IDCT (Michael)
723 - faster and entropy-controlled motion search (Michael)
724 - two pass video encoding (Michael)
725 - new video rate control (Michael)
726 - added MSMPEG4V1, MSMPEGV2 and WMV1 support (Michael)
727 - great performance improvement of video encoders and decoders (Michael)
728 - new and faster bit readers and vlc parsers (Michael)
729 - high quality encoding mode: tries all macroblock/VLC types (Michael)
730 - added DV video decoder
731 - preliminary RTP/RTSP support in ffserver and libavformat
732 - H.263+ AIC decoding/encoding support (Juanjo)
733 - VCD MPEG-PS mode (Juanjo)
734 - PSNR stuff (Juanjo)
735 - simple stats output (Juanjo)
736 - 16-bit and 15-bit RGB/BGR/GBR support (Bisqwit)
741 - some header fixes (Zdenek Kabelac <kabi at informatics.muni.cz>)
742 - many MMX optimizations (Nick Kurshev <nickols_k at mail.ru>)
743 - added configure system (actually a small shell script)
744 - added MPEG audio layer 1/2/3 decoding using LGPL'ed mpglib by
745 Michael Hipp (temporary solution - waiting for integer only
747 - fixed VIDIOCSYNC interrupt
748 - added Intel H.263 decoding support ('I263' AVI fourCC)
749 - added Real Video 1.0 decoding (needs further testing)
750 - simplified image formats again. Added PGM format (=grey
751 pgm). Renamed old PGM to PGMYUV.
752 - fixed msmpeg4 slice issues (tell me if you still find problems)
753 - fixed OpenDivX bugs with newer versions (added VOL header decoding)
754 - added support for MPlayer interface
755 - added macroblock skip optimization
756 - added MJPEG decoder
757 - added mmx/mmxext IDCT from libmpeg2
758 - added pgmyuvpipe, ppm, and ppm_pipe formats (original patch by Celer
759 <celer at shell.scrypt.net>)
760 - added pixel format conversion layer (e.g. for MJPEG or PPM)
761 - added deinterlacing option
763 - MPEG-4 vol header fixes (Jonathan Marsden <snmjbm at pacbell.net>)
764 - ARM optimizations (Lionel Ulmer <lionel.ulmer at free.fr>).
765 - Windows porting of file converter
766 - added MJPEG raw format (input/ouput)
767 - added JPEG image format support (input/output)
772 - fixed some std header definitions (Bjorn Lindgren
773 <bjorn.e.lindgren at telia.com>).
774 - added MPEG demuxer (MPEG-1 and 2 compatible).
776 - added prototype RM demuxer
777 - added AC3 decoding (done with libac3 by Aaron Holtzman)
778 - added decoding codec parameter guessing (.e.g. for MPEG, because the
779 header does not include them)
780 - fixed header generation in MPEG-1, AVI and ASF muxer: wmplayer can now
781 play them (only tested video)
782 - fixed H.263 white bug
783 - fixed phase rounding in img resample filter
784 - add MMX code for polyphase img resample filter
785 - added CPU autodetection
786 - added generic title/author/copyright/comment string handling (ASF and RM
788 - added SWF demux to extract MP3 track (not usable yet because no MP3
790 - added fractional frame rate support
791 - codecs are no longer searched by read_header() (should fix ffserver
797 - BGR24 patch (initial patch by Jeroen Vreeken <pe1rxq at amsat.org>)
798 - fixed raw yuv output
799 - added motion rounding support in MPEG-4
800 - fixed motion bug rounding in MSMPEG4
801 - added B-frame handling in video core
802 - added full MPEG-1 decoding support
803 - added partial (frame only) MPEG-2 support
804 - changed the FOURCC code for H.263 to "U263" to be able to see the
805 +AVI/H.263 file with the UB Video H.263+ decoder. MPlayer works with
806 this +codec ;) (JuanJo).
807 - Halfpel motion estimation after MB type selection (JuanJo)
808 - added pgm and .Y.U.V output format
809 - suppressed 'img:' protocol. Simply use: /tmp/test%d.[pgm|Y] as input or
811 - added pgmpipe I/O format (original patch from Martin Aumueller
812 <lists at reserv.at>, but changed completely since we use a format
813 instead of a protocol)
818 - added H.263/MPEG-4/MSMPEG4 decoding support. MPEG-4 decoding support
819 (for OpenDivX) is almost complete: 8x8 MVs and rounding are
820 missing. MSMPEG4 support is complete.
821 - added prototype MPEG-1 decoder. Only I- and P-frames handled yet (it
822 can decode ffmpeg MPEGs :-)).
823 - added libavcodec API documentation (see apiexample.c).
824 - fixed image polyphase bug (the bottom of some images could be
826 - added support for non clipped motion vectors (decoding only)
827 and image sizes non-multiple of 16
828 - added support for AC prediction (decoding only)
829 - added file overwrite confirmation (can be disabled with -y)
830 - added custom size picture to H.263 using H.263+ (Juanjo)
835 - added MSMPEG4 (aka DivX) compatible encoder. Changed default codec
836 of AVI and ASF to DIV3.
837 - added -me option to set motion estimation method
838 (default=log). suppressed redundant -hq option.
839 - added options -acodec and -vcodec to force a given codec (useful for
842 - improved dct_quantize speed
843 - factorized some motion estimation code
848 - removing grab code from ffserver and moved it to ffmpeg. Added
849 multistream support to ffmpeg.
850 - added timeshifting support for live feeds (option ?date=xxx in the
852 - added high quality image resize code with polyphase filter (need
853 mmx/see optimization). Enable multiple image size support in ffserver.
854 - added multi live feed support in ffserver
855 - suppressed master feature from ffserver (it should be done with an
856 external program which opens the .ffm url and writes it to another
858 - added preliminary support for video stream parsing (WAV and AVI half
859 done). Added proper support for audio/video file conversion in
861 - added preliminary support for video file sending from ffserver
862 - redesigning I/O subsystem: now using URL based input and output
864 - added WAV format support
865 - added "tty user interface" to ffmpeg to stop grabbing gracefully
866 - added MMX/SSE optimizations to SAD (Sums of Absolutes Differences)
867 (Juan J. Sierralta P. a.k.a. "Juanjo" <juanjo at atmlab.utfsm.cl>)
868 - added MMX DCT from mpeg2_movie 1.5 (Juanjo)
869 - added new motion estimation algorithms, log and phods (Juanjo)
870 - changed directories: libav for format handling, libavcodec for
876 - added stereo in MPEG audio encoder
881 - added 'high quality' mode which use motion vectors. It can be used in
882 real time at low resolution.
883 - fixed rounding problems which caused quality problems at high
884 bitrates and large GOP size
887 version 0.3.2: small fixes
893 version 0.3.1: added avi/divx support
896 - added MPEG-4 codec compatible with OpenDivX. It is based on the H.263 codec
897 - added sound for flash format (not tested)
900 version 0.3: initial public release