1 Entries are sorted chronologically from oldest to youngest within each release,
2 releases are sorted from youngest to oldest.
6 - XWD encoder and decoder
7 - Support for fragmentation in the mov/mp4 muxer
8 - ISMV (Smooth Streaming) muxer
9 - CDXL demuxer and decoder
10 - Apple ProRes encoder
11 - Sun Rasterfile Encoder
13 - ID3v2 attached pictures reading and writing
14 - WMA Lossless decoder
16 - RealAudio Lossless decoder
18 - drop support for avconv without libavfilter
19 - add libavresample audio conversion library
20 - audio filters support in libavfilter and avconv
24 - avprobe output is now standard INI or JSON. The old format can still
27 - channelsplit audio filter
28 - RTMPT protocol support
29 - iLBC encoding/decoding via libilbc
40 - Automatic thread count based on detection number of (available) CPU cores
41 - Deprecate libpostproc. If desired, the switch --enable-postproc will
42 enable it but it may be removed in a later Libav release.
43 - rv34: frame-level multi-threading
44 - optimized iMDCT transform on x86 using SSE for for mpegaudiodec
50 - Flash Screen Video 2 decoder
51 - ffplay/ffprobe/ffserver renamed to avplay/avprobe/avserver
52 - ffmpeg deprecated, added avconv, which is almost the same for now, except
53 for a few incompatible changes in the options, which will hopefully make them
54 easier to use. The changes are:
55 * The options placement is now strictly enforced! While in theory the
56 options for ffmpeg should be given in [input options] -i INPUT [output
57 options] OUTPUT order, in practice it was possible to give output options
58 before the -i and it mostly worked. Except when it didn't - the behavior was
59 a bit inconsistent. In avconv, it is not possible to mix input and output
60 options. All non-global options are reset after an input or output filename.
61 * All per-file options are now truly per-file - they apply only to the next
62 input or output file and specifying different values for different files
63 will now work properly (notably -ss and -t options).
64 * All per-stream options are now truly per-stream - it is possible to
65 specify which stream(s) should a given option apply to. See the Stream
66 specifiers section in the avconv manual for details.
67 * In ffmpeg some options (like -newvideo/-newaudio/...) are irregular in the
68 sense that they're specified after the output filename instead of before,
69 like all other options. In avconv this irregularity is removed, all options
70 apply to the next input or output file.
71 * -newvideo/-newaudio/-newsubtitle options were removed. Not only were they
72 irregular and highly confusing, they were also redundant. In avconv the -map
73 option will create new streams in the output file and map input streams to
74 them. E.g. avconv -i INPUT -map 0 OUTPUT will create an output stream for
75 each stream in the first input file.
76 * The -map option now has slightly different and more powerful syntax:
77 + Colons (':') are used to separate file index/stream type/stream index
78 instead of dots. Comma (',') is used to separate the sync stream instead
79 of colon.. This is done for consistency with other options.
80 + It's possible to specify stream type. E.g. -map 0:a:2 creates an
81 output stream from the third input audio stream.
82 + Omitting the stream index now maps all the streams of the given type,
83 not just the first. E.g. -map 0:s creates output streams for all the
84 subtitle streams in the first input file.
85 + Since -map can now match multiple streams, negative mappings were
86 introduced. Negative mappings disable some streams from an already
87 defined map. E.g. '-map 0 -map -0:a:1' means 'create output streams for
88 all the stream in the first input file, except for the second audio
90 * There is a new option -c (or -codec) for choosing the decoder/encoder to
91 use, which allows to precisely specify target stream(s) consistently with
92 other options. E.g. -c:v lib264 sets the codec for all video streams, -c:a:0
93 libvorbis sets the codec for the first audio stream and -c copy copies all
94 the streams without reencoding. Old -vcodec/-acodec/-scodec options are now
96 * It is now possible to precisely specify which stream should an AVOption
97 apply to. E.g. -b:v:0 2M sets the bitrate for the first video stream, while
98 -b:a 128k sets the bitrate for all audio streams. Note that the old -ab 128k
99 syntax is deprecated and will stop working soon.
100 * -map_chapters now takes only an input file index and applies to the next
101 output file. This is consistent with how all the other options work.
102 * -map_metadata now takes only an input metadata specifier and applies to
103 the next output file. Output metadata specifier is now part of the option
104 name, similarly to the AVOptions/map/codec feature above.
105 * -metadata can now be used to set metadata on streams and chapters, e.g.
106 -metadata:s:1 language=eng sets the language of the first stream to 'eng'.
107 This made -vlang/-alang/-slang options redundant, so they were removed.
108 * -qscale option now uses stream specifiers and applies to all streams, not
109 just video. I.e. plain -qscale number would now apply to all streams. To get
110 the old behavior, use -qscale:v. Also there is now a shortcut -q for -qscale
111 and -aq is now an alias for -q:a.
112 * -vbsf/-absf/-sbsf options were removed and replaced by a -bsf option which
113 uses stream specifiers. Use -bsf:v/a/s instead of the old options.
114 * -itsscale option now uses stream specifiers, so its argument is only the
116 * -intra option was removed, use -g 0 for the same effect.
117 * -psnr option was removed, use -flags +psnr for the same effect.
118 * -vf option is now an alias to the new -filter option, which uses stream specifiers.
119 * -vframes/-aframes/-dframes options are now aliases to the new -frames option.
120 * -vtag/-atag/-stag options are now aliases to the new -tag option.
122 - Windows Media Image decoder
126 - libcdio-paranoia input device for audio CD grabbing
128 - Apple ProRes decoder
129 - CELT in Ogg demuxing
130 - VC-1 interlaced decoding
131 - lut, lutrgb, and lutyuv filters
134 - Speex encoding via libspeex
135 - 4:2:2 H.264 decoding support
136 - 4:2:2 and 4:4:4 H.264 encoding with libx264
137 - Pulseaudio input device
138 - replacement Indeo 3 decoder
139 - TLS/SSL and HTTPS protocol support
140 - AVOptions API rewritten and documented
141 - most of CODEC_FLAG2_*, some CODEC_FLAG_* and many codec-specific fields in
142 AVCodecContext deprecated. Codec private options should be used instead.
143 - Properly working defaults in libx264 wrapper, support for native presets.
144 - Encrypted OMA files support
145 - Discworld II BMV decoding support
147 - OS X Video Decoder Acceleration (VDA) support
148 - CRI ADX audio format muxer and demuxer
149 - Playstation Portable PMP format demuxer
150 - PCM format support in OMA demuxer
152 - Dxtory capture format decoder
153 - v410 QuickTime uncompressed 4:4:4 10-bit encoder and decoder
155 - Simple segmenting muxer
162 - E-AC-3 audio encoder
163 - ac3enc: add channel coupling support
164 - floating-point sample format support for (E-)AC-3, DCA, AAC, Vorbis decoders
165 - H.264/MPEG frame-level multithreading
166 - av_metadata_* functions renamed to av_dict_* and moved to libavutil
167 - 4:4:4 H.264 decoding support
168 - 10-bit H.264 optimizations for x86
169 - bump libswscale for recently reported ABI break
174 - VP8 frame-level multithreading
175 - NEON optimizations for VP8
176 - removed a lot of deprecated API cruft
177 - FFT and IMDCT optimizations for AVX (Sandy Bridge) processors
179 - SMPTE 302M AES3 audio decoder
180 - ffmpeg no longer quits after the 'q' key is pressed; use 'ctrl+c' instead
181 - 9bit and 10bit per sample support in the H.264 decoder
186 - WebM support in Matroska de/muxer
187 - low overhead Ogg muxing
189 - VP8 de/encoding via libvpx
190 - Demuxer for On2's IVF format
191 - Pictor/PC Paint decoder
193 - libfaad2 wrapper removed
194 - DTS-ES extension (XCh) decoding support
196 - RTSP tunneling over HTTP
197 - RTP depacketization of SVQ3
198 - -strict inofficial replaced by -strict unofficial
199 - ffplay -exitonkeydown and -exitonmousedown options added
200 - native GSM / GSM MS decoder
201 - RTP depacketization of QDM2
202 - ANSI/ASCII art playback system
203 - Lego Mindstorms RSO de/muxer
204 - SubRip subtitle file muxer and demuxer
205 - Chinese AVS encoding via libxavs
206 - ffprobe -show_packets option added
207 - RTP packetization of Theora and Vorbis
208 - RTP depacketization of MP4A-LATM
209 - RTP packetization and depacketization of VP8
211 - Apple HTTP Live Streaming demuxer
214 - G.722 ADPCM audio encoder/decoder
217 - frei0r wrapper filter
218 - change crop filter syntax to width:height:x:y
219 - make the crop filter accept parametric expressions
220 - make ffprobe accept AVFormatContext options
223 - Demuxer for Leitch/Harris' VR native stream format (LXF)
224 - RTP depacketization of the X-QT QuickTime format
225 - SAP (Session Announcement Protocol, RFC 2974) muxer and demuxer
227 - ffmpeg -crop* options removed
228 - transpose filter added
229 - ffmpeg -force_key_frames option added
230 - demuxer for receiving raw rtp:// URLs without an SDP description
231 - single stream LATM/LOAS decoder
232 - setpts filter added
233 - Win64 support for optimized x86 assembly functions
234 - MJPEG/AVI1 to JPEG/JFIF bitstream filter
235 - ASS subtitle encoder and decoder
236 - IEC 61937 encapsulation for E-AC-3, TrueHD, DTS-HD (for HDMI passthrough)
237 - overlay filter added
238 - rename aspect filter to setdar, and pixelaspect to setsar
240 - Mobotix .mxg demuxer
241 - frei0r source added
242 - hqdn3d filter added
243 - RTP depacketization of QCELP
245 - gradfun filter added
247 - replace the ocv_smooth filter with a more generic ocv filter
248 - Windows Televison (WTV) demuxer
249 - FFmpeg metadata format muxer and demuxer
250 - SubRip (srt) subtitle decoder
251 - floating-point AC-3 encoder added
253 - ffmpeg -copytb option added
255 - Wing Commander IV movies decoder added
257 - Bink version 'b' audio and video decoder
258 - Bitmap Brothers JV playback system
259 - Apple HTTP Live Streaming protocol handler
260 - sndio support for playback and record
261 - Linux framebuffer input device added
262 - Chronomaster DFA decoder
263 - Mobotix MxPEG decoder
264 - AAC encoding via libvo-aacenc
265 - AMR-WB encoding via libvo-amrwbenc
267 - fieldorder video filter added
272 - PB-frame decoding for H.263
273 - deprecated vhook subsystem removed
274 - deprecated old scaler removed
276 - Alpha channel scaler
278 - RTP packetization of H.263
279 - RTP packetization of AMR
280 - RTP depacketization of Vorbis
281 - CorePNG decoding support
282 - Cook multichannel decoding support
283 - introduced avlanguage helpers in libavformat
284 - 8088flex TMV demuxer and decoder
285 - per-stream language-tags extraction in asfdec
286 - V210 decoder and encoder
287 - remaining GPL parts in AC-3 decoder converted to LGPL
289 - SoX native format muxer and demuxer
290 - AMR-NB decoding/encoding, AMR-WB decoding via OpenCORE libraries
292 - Electronic Arts Madcow decoder
293 - DivX (XSUB) subtitle encoder
294 - nonfree libamr support for AMR-NB/WB decoding/encoding removed
295 - experimental AAC encoder
296 - RTP depacketization of ASF and RTSP from WMS servers
297 - RTMP support in libavformat
298 - noX handling for OPT_BOOL X options
300 - IEC-61937 compatible Muxer
302 - Bluray (PGS) subtitle decoder
303 - LPCM support in MPEG-TS (HDMV RID as found on Blu-ray disks)
305 - Core Audio Format demuxer
307 - MD STUDIO audio demuxer
308 - RF64 support in WAV demuxer
309 - MPEG-4 Audio Lossless Coding (ALS) decoder
310 - -formats option split into -formats, -codecs, -bsfs, and -protocols
312 - CDG demuxer and decoder
314 - Auravision Aura 1 and 2 decoders
315 - Deluxe Paint Animation playback system
317 - Adobe Filmstrip muxer and demuxer
318 - RTP depacketization of H.263
319 - Bink demuxer and audio/video decoders
320 - enable symbol versioning by default for linkers that support it
321 - IFF PBM/ILBM bitmap decoder
324 - RTP depacketization of AMR
330 - Kega Game Video (KGV1) decoder
331 - VorbisComment writing for FLAC, Ogg FLAC and Ogg Speex files
332 - RTP depacketization of Theora
333 - HTTP Digest authentication
334 - RTMP/RTMPT/RTMPS/RTMPE/RTMPTE protocol support via librtmp
335 - Psygnosis YOP demuxer and video decoder
336 - spectral extension support in the E-AC-3 decoder
337 - unsharp video filter
338 - RTP hinting in the mov/3gp/mp4 muxer
339 - Dirac in Ogg demuxing
340 - seek to keyframes in Ogg
341 - 4:2:2 and 4:4:4 Theora decoding
342 - 35% faster VP3/Theora decoding
343 - faster AAC decoding
344 - faster H.264 decoding
345 - RealAudio 1.0 (14.4K) encoder
350 - DV50 AKA DVCPRO50 encoder, decoder, muxer and demuxer
351 - TechSmith Camtasia (TSCC) video decoder
352 - IBM Ultimotion (ULTI) video decoder
353 - Sierra Online audio file demuxer and decoder
354 - Apple QuickDraw (qdrw) video decoder
355 - Creative ADPCM audio decoder (16 bits as well as 8 bits schemes)
356 - Electronic Arts Multimedia (WVE/UV2/etc.) file demuxer
357 - Miro VideoXL (VIXL) video decoder
358 - H.261 video encoder
360 - Nullsoft Video (NSV) file demuxer
361 - Shorten audio decoder
363 - Apple Lossless Audio Codec (ALAC) decoder
364 - Winnov WNV1 video decoder
365 - Autodesk Animator Studio Codec (AASC) decoder
366 - Indeo 2 video decoder
367 - Fraps FPS1 video decoder
368 - Snow video encoder/decoder
369 - Sonic audio encoder/decoder
370 - Vorbis audio decoder
371 - Macromedia ADPCM decoder
372 - Duck TrueMotion 2 video decoder
373 - support for decoding FLX and DTA extensions in FLIC files
374 - H.264 custom quantization matrices support
375 - ffserver fixed, it should now be usable again
377 - Real Cooker audio decoder
378 - TrueSpeech audio decoder
379 - WMA2 audio decoder fixed, now all files should play correctly
380 - RealAudio 14.4 and 28.8 decoders fixed
382 - build system improvements
383 - tabs and trailing whitespace removed from the codebase
384 - CamStudio video decoder
385 - AIFF/AIFF-C audio format, encoding and decoding
386 - ADTS AAC file reading and writing
387 - Creative VOC file reading and writing
388 - American Laser Games multimedia (*.mm) playback system
389 - Zip Motion Blocks Video decoder
390 - improved Theora/VP3 decoder
391 - True Audio (TTA) decoder
392 - AVS demuxer and video decoder
394 - Smacker demuxer and decoder
395 - NuppelVideo/MythTV demuxer and RTjpeg decoder
397 - MPEG-2 intra VLC support
398 - MPEG-2 4:2:2 encoder
399 - Flash Screen Video decoder
401 - Chinese AVS decoder
404 - VC-1/WMV3/WMV9 video decoder
407 - VMware video decoder
410 - WavPack lossless audio decoder
411 - Targa (.TGA) picture decoder
412 - Vorbis audio encoder
413 - Delphine Software .cin demuxer/audio and video decoder
414 - Tiertex .seq demuxer/video decoder
416 - TIFF picture encoder and decoder
417 - GIF picture decoder
418 - Intel Music Coder decoder
419 - Zip Motion Blocks Video encoder
421 - Flash Screen Video encoder
422 - Theora encoding via libtheora
425 - GSM-MS encoder and decoder
427 - DXA demuxer and decoder
429 - Gamecube movie (.THP) playback system
430 - Blackfin optimizations
431 - Interplay C93 demuxer and video decoder
432 - Bethsoft VID demuxer and video decoder
435 - V.Flash PTX decoder
436 - RoQ muxer, RoQ audio encoder
437 - Renderware TXD demuxer and decoder
438 - extern C declarations for C++ removed from headers
439 - sws_flags command line option
443 - OS/2 support removed and restored again
446 - additional SPARC (VIS) optimizations
448 - slice-based parallel H.264 decoding
449 - Monkey's Audio demuxer and decoder
450 - AMV audio and video decoder
452 - H.264 PAFF decoding
453 - Nellymoser ASAO decoder
454 - Beam Software SIFF demuxer and decoder
455 - libvorbis Vorbis decoding removed in favor of native decoder
456 - IntraX8 (J-Frame) subdecoder for WMV2 and VC-1
457 - Ogg (Theora, Vorbis and FLAC) muxer
458 - The "device" muxers and demuxers are now in a new libavdevice library
459 - PC Paintbrush PCX decoder
460 - Sun Rasterfile decoder
461 - TechnoTrend PVA demuxer
462 - Linux Media Labs MPEG-4 (LMLM4) demuxer
463 - AVM2 (Flash 9) SWF muxer
464 - QT variant of IMA ADPCM encoder
466 - iPod/iPhone compatible mp4 muxer
468 - MSN TCP Webcam stream demuxer
469 - RL2 demuxer / decoder
472 - non-recursive Makefiles
474 - MAXIS EA XA (.xa) demuxer / decoder
478 - Electronic Arts CMV decoder
479 - Motion Pixels Video decoder
480 - Motion Pixels MVI demuxer
481 - removed animated GIF decoder/demuxer
482 - D-Cinema audio muxer
483 - Electronic Arts TGV decoder
484 - Apple Lossless Audio Codec (ALAC) encoder
486 - floating point PCM encoder/decoder
488 - DV100 AKA DVCPRO HD decoder and demuxer
489 - E-AC-3 support added to AC-3 decoder
490 - Nellymoser ASAO encoder
491 - ASS and SSA demuxer and muxer
492 - liba52 wrapper removed
493 - SVQ3 watermark decoding support
494 - Speex decoding via libspeex
495 - Electronic Arts TGQ decoder
497 - QCELP / PureVoice decoder
499 - hybrid WavPack support
500 - R3D REDCODE demuxer
501 - ALSA support for playback and record
502 - Electronic Arts TQI decoder
503 - OpenJPEG based JPEG 2000 decoder
504 - NC (NC4600) camera file demuxer
505 - Gopher client support
507 - generic metadata API
512 - DV encoder, DV muxer
513 - Microsoft RLE video decoder
514 - Microsoft Video-1 decoder
515 - Apple Animation (RLE) decoder
516 - Apple Graphics (SMC) decoder
517 - Apple Video (RPZA) decoder
519 - Sega FILM (CPK) file demuxer
520 - Westwood multimedia support (VQA & AUD files)
521 - Id Quake II CIN playback support
523 - FLIC playback support
524 - RealVideo 2.0 (RV20) decoder
525 - Duck TrueMotion v1 (DUCK) video decoder
526 - Sierra VMD demuxer and video decoder
527 - MSZH and ZLIB decoder support
531 - rate distortion optimal cbp support
532 - rate distorted optimal ac prediction for MPEG-4
533 - rate distorted optimal lambda->qp support
534 - AAC encoding with libfaac
535 - Sunplus JPEG codec (SP5X) support
536 - use Lagrange multipler instead of QP for ratecontrol
537 - Theora/VP3 decoding support
538 - XA and ADX ADPCM codecs
539 - export MPEG-2 active display area / pan scan
540 - Add support for configuring with IBM XLC
541 - floating point AAN DCT
542 - initial support for zygo video (not complete)
544 - new audio/video parser API
546 - av_read_frame() and av_seek_frame() support
547 - missing last frame fixes
548 - seek by mouse in ffplay
549 - noise reduction of DCT coefficients
550 - H.263 OBMC & 4MV support
551 - H.263 alternative inter vlc support
553 - H.263 slice structured mode
554 - interlaced DCT support for MPEG-2 encoding
555 - stuffing to stay above min_bitrate
556 - MB type & QP visualization
557 - frame stepping for ffplay
558 - interlaced motion estimation
559 - alternate scantable support
560 - SVCD scan offset support
563 - quantizer noise shaping
564 - G.726 ADPCM audio codec
566 - multithreaded/SMP motion estimation
567 - multithreaded/SMP encoding for MPEG-1/MPEG-2/MPEG-4/H.263
568 - multithreaded/SMP decoding for MPEG-2
570 - Metrowerks CodeWarrior suppport
571 - H.263+ custom pcf support
572 - nicer output for 'ffmpeg -formats'
574 - SGI image format, encoding and decoding
575 - H.264 loop filter support
576 - H.264 CABAC support
577 - nicer looking arrows for the motion vector visualization
578 - improved VCD support
579 - audio timestamp drift compensation
580 - MPEG-2 YUV 422/444 support
581 - polyphase kaiser windowed sinc and blackman nuttall windowed sinc audio resample
582 - better image scaling
584 - correctly interleave packets during encoding
585 - VIS optimized motion compensation
586 - intra_dc_precision>0 encoding support
587 - support reuse of motion vectors/MB types/field select values of the source video
588 - more accurate deblock filter
590 - many optimizations and bugfixes
591 - FunCom ISS audio file demuxer and according ADPCM decoding
596 - MPEG-2 video encoding (Michael)
597 - Id RoQ playback subsystem (Mike Melanson and Tim Ferguson)
598 - Wing Commander III Movie (.mve) file playback subsystem (Mike Melanson
600 - Xan DPCM audio decoder (Mario Brito)
601 - Interplay MVE playback subsystem (Mike Melanson)
602 - Duck DK3 and DK4 ADPCM audio decoders (Mike Melanson)
607 - RealAudio 1.0 (14_4) and 2.0 (28_8) native decoders. Author unknown, code from mplayerhq
608 (originally from public domain player for Amiga at http://www.honeypot.net/audio)
609 - current version now also compiles with older GCC (Fabrice)
610 - 4X multimedia playback system including 4xm file demuxer (Mike
611 Melanson), and 4X video and audio codecs (Michael)
612 - Creative YUV (CYUV) decoder (Mike Melanson)
613 - FFV1 codec (our very simple lossless intra only codec, compresses much better
614 than HuffYUV) (Michael)
615 - ASV1 (Asus), H.264, Intel indeo3 codecs have been added (various)
616 - tiny PNG encoder and decoder, tiny GIF decoder, PAM decoder (PPM with
617 alpha support), JPEG YUV colorspace support. (Fabrice Bellard)
618 - ffplay has been replaced with a newer version which uses SDL (optionally)
619 for multiplatform support (Fabrice)
620 - Sorenson Version 3 codec (SVQ3) support has been added (decoding only) - donated
622 - AMR format has been added (Johannes Carlsson)
623 - 3GP support has been added (Johannes Carlsson)
624 - VP3 codec has been added (Mike Melanson)
625 - more MPEG-1/2 fixes
626 - better multiplatform support, MS Visual Studio fixes (various)
627 - AltiVec optimizations (Magnus Damn and others)
628 - SH4 processor support has been added (BERO)
629 - new public interfaces (avcodec_get_pix_fmt) (Roman Shaposhnick)
630 - VOB streaming support (Brian Foley)
631 - better MP3 autodetection (Andriy Rysin)
632 - qpel encoding (Michael)
633 - 4mv+b frames encoding finally fixed (Michael)
634 - chroma ME (Michael)
635 - 5 comparison functions for ME (Michael)
636 - B-frame encoding speedup (Michael)
637 - WMV2 codec (unfinished - Michael)
638 - user specified diamond size for EPZS (Michael)
639 - Playstation STR playback subsystem, still experimental (Mike and Michael)
640 - ASV2 codec (Michael)
641 - CLJR decoder (Alex)
643 .. And lots more new enhancements and fixes.
648 - completely new integer only MPEG audio layer 1/2/3 decoder rewritten
650 - Recoded DCT and motion vector search with gcc (no longer depends on nasm)
651 - fix quantization bug in AC3 encoder
652 - added PCM codecs and format. Corrected WAV/AVI/ASF PCM issues
653 - added prototype ffplay program
654 - added GOB header parsing on H.263/H.263+ decoder (Juanjo)
655 - bug fix on MCBPC tables of H.263 (Juanjo)
656 - bug fix on DC coefficients of H.263 (Juanjo)
657 - added Advanced Prediction Mode on H.263/H.263+ decoder (Juanjo)
658 - now we can decode H.263 streams found in QuickTime files (Juanjo)
659 - now we can decode H.263 streams found in VIVO v1 files(Juanjo)
660 - preliminary RTP "friendly" mode for H.263/H.263+ coding. (Juanjo)
661 - added GOB header for H.263/H.263+ coding on RTP mode (Juanjo)
662 - now H.263 picture size is returned on the first decoded frame (Juanjo)
663 - added first regression tests
664 - added MPEG-2 TS demuxer
665 - new demux API for libav
666 - more accurate and faster IDCT (Michael)
667 - faster and entropy-controlled motion search (Michael)
668 - two pass video encoding (Michael)
669 - new video rate control (Michael)
670 - added MSMPEG4V1, MSMPEGV2 and WMV1 support (Michael)
671 - great performance improvement of video encoders and decoders (Michael)
672 - new and faster bit readers and vlc parsers (Michael)
673 - high quality encoding mode: tries all macroblock/VLC types (Michael)
674 - added DV video decoder
675 - preliminary RTP/RTSP support in ffserver and libavformat
676 - H.263+ AIC decoding/encoding support (Juanjo)
677 - VCD MPEG-PS mode (Juanjo)
678 - PSNR stuff (Juanjo)
679 - simple stats output (Juanjo)
680 - 16-bit and 15-bit RGB/BGR/GBR support (Bisqwit)
685 - some header fixes (Zdenek Kabelac <kabi at informatics.muni.cz>)
686 - many MMX optimizations (Nick Kurshev <nickols_k at mail.ru>)
687 - added configure system (actually a small shell script)
688 - added MPEG audio layer 1/2/3 decoding using LGPL'ed mpglib by
689 Michael Hipp (temporary solution - waiting for integer only
691 - fixed VIDIOCSYNC interrupt
692 - added Intel H.263 decoding support ('I263' AVI fourCC)
693 - added Real Video 1.0 decoding (needs further testing)
694 - simplified image formats again. Added PGM format (=grey
695 pgm). Renamed old PGM to PGMYUV.
696 - fixed msmpeg4 slice issues (tell me if you still find problems)
697 - fixed OpenDivX bugs with newer versions (added VOL header decoding)
698 - added support for MPlayer interface
699 - added macroblock skip optimization
700 - added MJPEG decoder
701 - added mmx/mmxext IDCT from libmpeg2
702 - added pgmyuvpipe, ppm, and ppm_pipe formats (original patch by Celer
703 <celer at shell.scrypt.net>)
704 - added pixel format conversion layer (e.g. for MJPEG or PPM)
705 - added deinterlacing option
707 - MPEG-4 vol header fixes (Jonathan Marsden <snmjbm at pacbell.net>)
708 - ARM optimizations (Lionel Ulmer <lionel.ulmer at free.fr>).
709 - Windows porting of file converter
710 - added MJPEG raw format (input/ouput)
711 - added JPEG image format support (input/output)
716 - fixed some std header definitions (Bjorn Lindgren
717 <bjorn.e.lindgren at telia.com>).
718 - added MPEG demuxer (MPEG-1 and 2 compatible).
720 - added prototype RM demuxer
721 - added AC3 decoding (done with libac3 by Aaron Holtzman)
722 - added decoding codec parameter guessing (.e.g. for MPEG, because the
723 header does not include them)
724 - fixed header generation in MPEG-1, AVI and ASF muxer: wmplayer can now
725 play them (only tested video)
726 - fixed H.263 white bug
727 - fixed phase rounding in img resample filter
728 - add MMX code for polyphase img resample filter
729 - added CPU autodetection
730 - added generic title/author/copyright/comment string handling (ASF and RM
732 - added SWF demux to extract MP3 track (not usable yet because no MP3
734 - added fractional frame rate support
735 - codecs are no longer searched by read_header() (should fix ffserver
741 - BGR24 patch (initial patch by Jeroen Vreeken <pe1rxq at amsat.org>)
742 - fixed raw yuv output
743 - added motion rounding support in MPEG-4
744 - fixed motion bug rounding in MSMPEG4
745 - added B-frame handling in video core
746 - added full MPEG-1 decoding support
747 - added partial (frame only) MPEG-2 support
748 - changed the FOURCC code for H.263 to "U263" to be able to see the
749 +AVI/H.263 file with the UB Video H.263+ decoder. MPlayer works with
750 this +codec ;) (JuanJo).
751 - Halfpel motion estimation after MB type selection (JuanJo)
752 - added pgm and .Y.U.V output format
753 - suppressed 'img:' protocol. Simply use: /tmp/test%d.[pgm|Y] as input or
755 - added pgmpipe I/O format (original patch from Martin Aumueller
756 <lists at reserv.at>, but changed completely since we use a format
757 instead of a protocol)
762 - added H.263/MPEG-4/MSMPEG4 decoding support. MPEG-4 decoding support
763 (for OpenDivX) is almost complete: 8x8 MVs and rounding are
764 missing. MSMPEG4 support is complete.
765 - added prototype MPEG-1 decoder. Only I- and P-frames handled yet (it
766 can decode ffmpeg MPEGs :-)).
767 - added libavcodec API documentation (see apiexample.c).
768 - fixed image polyphase bug (the bottom of some images could be
770 - added support for non clipped motion vectors (decoding only)
771 and image sizes non-multiple of 16
772 - added support for AC prediction (decoding only)
773 - added file overwrite confirmation (can be disabled with -y)
774 - added custom size picture to H.263 using H.263+ (Juanjo)
779 - added MSMPEG4 (aka DivX) compatible encoder. Changed default codec
780 of AVI and ASF to DIV3.
781 - added -me option to set motion estimation method
782 (default=log). suppressed redundant -hq option.
783 - added options -acodec and -vcodec to force a given codec (useful for
786 - improved dct_quantize speed
787 - factorized some motion estimation code
792 - removing grab code from ffserver and moved it to ffmpeg. Added
793 multistream support to ffmpeg.
794 - added timeshifting support for live feeds (option ?date=xxx in the
796 - added high quality image resize code with polyphase filter (need
797 mmx/see optimization). Enable multiple image size support in ffserver.
798 - added multi live feed support in ffserver
799 - suppressed master feature from ffserver (it should be done with an
800 external program which opens the .ffm url and writes it to another
802 - added preliminary support for video stream parsing (WAV and AVI half
803 done). Added proper support for audio/video file conversion in
805 - added preliminary support for video file sending from ffserver
806 - redesigning I/O subsystem: now using URL based input and output
808 - added WAV format support
809 - added "tty user interface" to ffmpeg to stop grabbing gracefully
810 - added MMX/SSE optimizations to SAD (Sums of Absolutes Differences)
811 (Juan J. Sierralta P. a.k.a. "Juanjo" <juanjo at atmlab.utfsm.cl>)
812 - added MMX DCT from mpeg2_movie 1.5 (Juanjo)
813 - added new motion estimation algorithms, log and phods (Juanjo)
814 - changed directories: libav for format handling, libavcodec for
820 - added stereo in MPEG audio encoder
825 - added 'high quality' mode which use motion vectors. It can be used in
826 real time at low resolution.
827 - fixed rounding problems which caused quality problems at high
828 bitrates and large GOP size
831 version 0.3.2: small fixes
837 version 0.3.1: added avi/divx support
840 - added MPEG-4 codec compatible with OpenDivX. It is based on the H.263 codec
841 - added sound for flash format (not tested)
844 version 0.3: initial public release