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
26 - av_basename and av_dirname
27 - adobe and limelight publisher authentication in RTMP
28 - VDPAU hardware acceleration through normal hwaccel
33 - ashowinfo audio filter
34 - 24-bit FLAC encoding
36 - deprecated the avconv -vol option. the volume filter is to be used instead.
37 - multi-channel ALAC encoding up to 7.1
38 - TAK demuxer, parser, and decoder
39 - adaptive frame-level multithreading for H.264
43 - metadata (INFO tag) support in WAV muxer
44 - support for building DLLs using MSVC
45 - remove avserver daemon mode
46 - support building on the Plan 9 operating system
47 - ffv1: support version 1.3
52 - XWD encoder and decoder
53 - Support for fragmentation in the mov/mp4 muxer
54 - ISMV (Smooth Streaming) muxer
55 - CDXL demuxer and decoder
56 - Apple ProRes encoder
57 - Sun Rasterfile Encoder
59 - ID3v2 attached pictures reading and writing
60 - WMA Lossless decoder
62 - RealAudio Lossless decoder
64 - drop support for avconv without libavfilter
65 - add libavresample audio conversion library
66 - audio filters support in libavfilter and avconv
70 - avprobe output is now standard INI or JSON. The old format can still
73 - channelsplit audio filter
74 - RTMPT protocol support
75 - iLBC encoding/decoding via libilbc
76 - Microsoft Screen 1 decoder
78 - audio channel mapping filter
79 - Microsoft ATC Screen decoder
81 - TechSmith Screen Codec 2 decoder
82 - AAC encoding via libfdk-aac
83 - Microsoft Expression Encoder Screen decoder
84 - RTMPS protocol support
85 - RTMPTS protocol support
86 - JPEG 2000 encoding support through OpenJPEG
87 - G.723.1 demuxer and decoder
88 - RTMPE protocol support
89 - RTMPTE protocol support
90 - Canopus Lossless Codec decoder
91 - avconv -shortest option is now per-output file,
92 -pass and -passlogfile are now per-output stream
94 - Microsoft Screen 2 decoder
95 - RTP depacketization of JPEG
96 - Smooth Streaming live segmenter muxer
97 - RTP packetization of JPEG
98 - Opus decoder and encoder using libopus
99 - remove -same_quant, it hasn't worked for years
100 - support for building with MSVC
111 - Automatic thread count based on detection number of (available) CPU cores
112 - Deprecate libpostproc. If desired, the switch --enable-postproc will
113 enable it but it may be removed in a later Libav release.
114 - rv34: frame-level multi-threading
115 - optimized iMDCT transform on x86 using SSE for for mpegaudiodec
121 - Flash Screen Video 2 decoder
122 - ffplay/ffprobe/ffserver renamed to avplay/avprobe/avserver
123 - ffmpeg deprecated, added avconv, which is almost the same for now, except
124 for a few incompatible changes in the options, which will hopefully make them
125 easier to use. The changes are:
126 * The options placement is now strictly enforced! While in theory the
127 options for ffmpeg should be given in [input options] -i INPUT [output
128 options] OUTPUT order, in practice it was possible to give output options
129 before the -i and it mostly worked. Except when it didn't - the behavior was
130 a bit inconsistent. In avconv, it is not possible to mix input and output
131 options. All non-global options are reset after an input or output filename.
132 * All per-file options are now truly per-file - they apply only to the next
133 input or output file and specifying different values for different files
134 will now work properly (notably -ss and -t options).
135 * All per-stream options are now truly per-stream - it is possible to
136 specify which stream(s) should a given option apply to. See the Stream
137 specifiers section in the avconv manual for details.
138 * In ffmpeg some options (like -newvideo/-newaudio/...) are irregular in the
139 sense that they're specified after the output filename instead of before,
140 like all other options. In avconv this irregularity is removed, all options
141 apply to the next input or output file.
142 * -newvideo/-newaudio/-newsubtitle options were removed. Not only were they
143 irregular and highly confusing, they were also redundant. In avconv the -map
144 option will create new streams in the output file and map input streams to
145 them. E.g. avconv -i INPUT -map 0 OUTPUT will create an output stream for
146 each stream in the first input file.
147 * The -map option now has slightly different and more powerful syntax:
148 + Colons (':') are used to separate file index/stream type/stream index
149 instead of dots. Comma (',') is used to separate the sync stream instead
150 of colon.. This is done for consistency with other options.
151 + It's possible to specify stream type. E.g. -map 0:a:2 creates an
152 output stream from the third input audio stream.
153 + Omitting the stream index now maps all the streams of the given type,
154 not just the first. E.g. -map 0:s creates output streams for all the
155 subtitle streams in the first input file.
156 + Since -map can now match multiple streams, negative mappings were
157 introduced. Negative mappings disable some streams from an already
158 defined map. E.g. '-map 0 -map -0:a:1' means 'create output streams for
159 all the stream in the first input file, except for the second audio
161 * There is a new option -c (or -codec) for choosing the decoder/encoder to
162 use, which allows to precisely specify target stream(s) consistently with
163 other options. E.g. -c:v lib264 sets the codec for all video streams, -c:a:0
164 libvorbis sets the codec for the first audio stream and -c copy copies all
165 the streams without reencoding. Old -vcodec/-acodec/-scodec options are now
167 * It is now possible to precisely specify which stream should an AVOption
168 apply to. E.g. -b:v:0 2M sets the bitrate for the first video stream, while
169 -b:a 128k sets the bitrate for all audio streams. Note that the old -ab 128k
170 syntax is deprecated and will stop working soon.
171 * -map_chapters now takes only an input file index and applies to the next
172 output file. This is consistent with how all the other options work.
173 * -map_metadata now takes only an input metadata specifier and applies to
174 the next output file. Output metadata specifier is now part of the option
175 name, similarly to the AVOptions/map/codec feature above.
176 * -metadata can now be used to set metadata on streams and chapters, e.g.
177 -metadata:s:1 language=eng sets the language of the first stream to 'eng'.
178 This made -vlang/-alang/-slang options redundant, so they were removed.
179 * -qscale option now uses stream specifiers and applies to all streams, not
180 just video. I.e. plain -qscale number would now apply to all streams. To get
181 the old behavior, use -qscale:v. Also there is now a shortcut -q for -qscale
182 and -aq is now an alias for -q:a.
183 * -vbsf/-absf/-sbsf options were removed and replaced by a -bsf option which
184 uses stream specifiers. Use -bsf:v/a/s instead of the old options.
185 * -itsscale option now uses stream specifiers, so its argument is only the
187 * -intra option was removed, use -g 0 for the same effect.
188 * -psnr option was removed, use -flags +psnr for the same effect.
189 * -vf option is now an alias to the new -filter option, which uses stream specifiers.
190 * -vframes/-aframes/-dframes options are now aliases to the new -frames option.
191 * -vtag/-atag/-stag options are now aliases to the new -tag option.
193 - Windows Media Image decoder
197 - libcdio-paranoia input device for audio CD grabbing
199 - Apple ProRes decoder
200 - CELT in Ogg demuxing
201 - VC-1 interlaced decoding
202 - lut, lutrgb, and lutyuv filters
205 - Speex encoding via libspeex
206 - 4:2:2 H.264 decoding support
207 - 4:2:2 and 4:4:4 H.264 encoding with libx264
208 - Pulseaudio input device
209 - replacement Indeo 3 decoder
210 - TLS/SSL and HTTPS protocol support
211 - AVOptions API rewritten and documented
212 - most of CODEC_FLAG2_*, some CODEC_FLAG_* and many codec-specific fields in
213 AVCodecContext deprecated. Codec private options should be used instead.
214 - Properly working defaults in libx264 wrapper, support for native presets.
215 - Encrypted OMA files support
216 - Discworld II BMV decoding support
218 - OS X Video Decoder Acceleration (VDA) support
219 - CRI ADX audio format muxer and demuxer
220 - Playstation Portable PMP format demuxer
221 - PCM format support in OMA demuxer
223 - Dxtory capture format decoder
224 - v410 QuickTime uncompressed 4:4:4 10-bit encoder and decoder
226 - Simple segmenting muxer
233 - E-AC-3 audio encoder
234 - ac3enc: add channel coupling support
235 - floating-point sample format support for (E-)AC-3, DCA, AAC, Vorbis decoders
236 - H.264/MPEG frame-level multithreading
237 - av_metadata_* functions renamed to av_dict_* and moved to libavutil
238 - 4:4:4 H.264 decoding support
239 - 10-bit H.264 optimizations for x86
240 - bump libswscale for recently reported ABI break
245 - VP8 frame-level multithreading
246 - NEON optimizations for VP8
247 - removed a lot of deprecated API cruft
248 - FFT and IMDCT optimizations for AVX (Sandy Bridge) processors
250 - SMPTE 302M AES3 audio decoder
251 - ffmpeg no longer quits after the 'q' key is pressed; use 'ctrl+c' instead
252 - 9bit and 10bit per sample support in the H.264 decoder
257 - WebM support in Matroska de/muxer
258 - low overhead Ogg muxing
260 - VP8 de/encoding via libvpx
261 - Demuxer for On2's IVF format
262 - Pictor/PC Paint decoder
264 - libfaad2 wrapper removed
265 - DTS-ES extension (XCh) decoding support
267 - RTSP tunneling over HTTP
268 - RTP depacketization of SVQ3
269 - -strict inofficial replaced by -strict unofficial
270 - ffplay -exitonkeydown and -exitonmousedown options added
271 - native GSM / GSM MS decoder
272 - RTP depacketization of QDM2
273 - ANSI/ASCII art playback system
274 - Lego Mindstorms RSO de/muxer
275 - SubRip subtitle file muxer and demuxer
276 - Chinese AVS encoding via libxavs
277 - ffprobe -show_packets option added
278 - RTP packetization of Theora and Vorbis
279 - RTP depacketization of MP4A-LATM
280 - RTP packetization and depacketization of VP8
282 - Apple HTTP Live Streaming demuxer
285 - G.722 ADPCM audio encoder/decoder
288 - frei0r wrapper filter
289 - change crop filter syntax to width:height:x:y
290 - make the crop filter accept parametric expressions
291 - make ffprobe accept AVFormatContext options
294 - Demuxer for Leitch/Harris' VR native stream format (LXF)
295 - RTP depacketization of the X-QT QuickTime format
296 - SAP (Session Announcement Protocol, RFC 2974) muxer and demuxer
298 - ffmpeg -crop* options removed
299 - transpose filter added
300 - ffmpeg -force_key_frames option added
301 - demuxer for receiving raw rtp:// URLs without an SDP description
302 - single stream LATM/LOAS decoder
303 - setpts filter added
304 - Win64 support for optimized x86 assembly functions
305 - MJPEG/AVI1 to JPEG/JFIF bitstream filter
306 - ASS subtitle encoder and decoder
307 - IEC 61937 encapsulation for E-AC-3, TrueHD, DTS-HD (for HDMI passthrough)
308 - overlay filter added
309 - rename aspect filter to setdar, and pixelaspect to setsar
311 - Mobotix .mxg demuxer
312 - frei0r source added
313 - hqdn3d filter added
314 - RTP depacketization of QCELP
316 - gradfun filter added
318 - replace the ocv_smooth filter with a more generic ocv filter
319 - Windows Televison (WTV) demuxer
320 - FFmpeg metadata format muxer and demuxer
321 - SubRip (srt) subtitle decoder
322 - floating-point AC-3 encoder added
324 - ffmpeg -copytb option added
326 - Wing Commander IV movies decoder added
328 - Bink version 'b' audio and video decoder
329 - Bitmap Brothers JV playback system
330 - Apple HTTP Live Streaming protocol handler
331 - sndio support for playback and record
332 - Linux framebuffer input device added
333 - Chronomaster DFA decoder
334 - Mobotix MxPEG decoder
335 - AAC encoding via libvo-aacenc
336 - AMR-WB encoding via libvo-amrwbenc
338 - fieldorder video filter added
343 - PB-frame decoding for H.263
344 - deprecated vhook subsystem removed
345 - deprecated old scaler removed
347 - Alpha channel scaler
349 - RTP packetization of H.263
350 - RTP packetization of AMR
351 - RTP depacketization of Vorbis
352 - CorePNG decoding support
353 - Cook multichannel decoding support
354 - introduced avlanguage helpers in libavformat
355 - 8088flex TMV demuxer and decoder
356 - per-stream language-tags extraction in asfdec
357 - V210 decoder and encoder
358 - remaining GPL parts in AC-3 decoder converted to LGPL
360 - SoX native format muxer and demuxer
361 - AMR-NB decoding/encoding, AMR-WB decoding via OpenCORE libraries
363 - Electronic Arts Madcow decoder
364 - DivX (XSUB) subtitle encoder
365 - nonfree libamr support for AMR-NB/WB decoding/encoding removed
366 - experimental AAC encoder
367 - RTP depacketization of ASF and RTSP from WMS servers
368 - RTMP support in libavformat
369 - noX handling for OPT_BOOL X options
371 - IEC-61937 compatible Muxer
373 - Bluray (PGS) subtitle decoder
374 - LPCM support in MPEG-TS (HDMV RID as found on Blu-ray disks)
376 - Core Audio Format demuxer
378 - MD STUDIO audio demuxer
379 - RF64 support in WAV demuxer
380 - MPEG-4 Audio Lossless Coding (ALS) decoder
381 - -formats option split into -formats, -codecs, -bsfs, and -protocols
383 - CDG demuxer and decoder
385 - Auravision Aura 1 and 2 decoders
386 - Deluxe Paint Animation playback system
388 - Adobe Filmstrip muxer and demuxer
389 - RTP depacketization of H.263
390 - Bink demuxer and audio/video decoders
391 - enable symbol versioning by default for linkers that support it
392 - IFF PBM/ILBM bitmap decoder
395 - RTP depacketization of AMR
401 - Kega Game Video (KGV1) decoder
402 - VorbisComment writing for FLAC, Ogg FLAC and Ogg Speex files
403 - RTP depacketization of Theora
404 - HTTP Digest authentication
405 - RTMP/RTMPT/RTMPS/RTMPE/RTMPTE protocol support via librtmp
406 - Psygnosis YOP demuxer and video decoder
407 - spectral extension support in the E-AC-3 decoder
408 - unsharp video filter
409 - RTP hinting in the mov/3gp/mp4 muxer
410 - Dirac in Ogg demuxing
411 - seek to keyframes in Ogg
412 - 4:2:2 and 4:4:4 Theora decoding
413 - 35% faster VP3/Theora decoding
414 - faster AAC decoding
415 - faster H.264 decoding
416 - RealAudio 1.0 (14.4K) encoder
421 - DV50 AKA DVCPRO50 encoder, decoder, muxer and demuxer
422 - TechSmith Camtasia (TSCC) video decoder
423 - IBM Ultimotion (ULTI) video decoder
424 - Sierra Online audio file demuxer and decoder
425 - Apple QuickDraw (qdrw) video decoder
426 - Creative ADPCM audio decoder (16 bits as well as 8 bits schemes)
427 - Electronic Arts Multimedia (WVE/UV2/etc.) file demuxer
428 - Miro VideoXL (VIXL) video decoder
429 - H.261 video encoder
431 - Nullsoft Video (NSV) file demuxer
432 - Shorten audio decoder
434 - Apple Lossless Audio Codec (ALAC) decoder
435 - Winnov WNV1 video decoder
436 - Autodesk Animator Studio Codec (AASC) decoder
437 - Indeo 2 video decoder
438 - Fraps FPS1 video decoder
439 - Snow video encoder/decoder
440 - Sonic audio encoder/decoder
441 - Vorbis audio decoder
442 - Macromedia ADPCM decoder
443 - Duck TrueMotion 2 video decoder
444 - support for decoding FLX and DTA extensions in FLIC files
445 - H.264 custom quantization matrices support
446 - ffserver fixed, it should now be usable again
448 - Real Cooker audio decoder
449 - TrueSpeech audio decoder
450 - WMA2 audio decoder fixed, now all files should play correctly
451 - RealAudio 14.4 and 28.8 decoders fixed
453 - build system improvements
454 - tabs and trailing whitespace removed from the codebase
455 - CamStudio video decoder
456 - AIFF/AIFF-C audio format, encoding and decoding
457 - ADTS AAC file reading and writing
458 - Creative VOC file reading and writing
459 - American Laser Games multimedia (*.mm) playback system
460 - Zip Motion Blocks Video decoder
461 - improved Theora/VP3 decoder
462 - True Audio (TTA) decoder
463 - AVS demuxer and video decoder
465 - Smacker demuxer and decoder
466 - NuppelVideo/MythTV demuxer and RTjpeg decoder
468 - MPEG-2 intra VLC support
469 - MPEG-2 4:2:2 encoder
470 - Flash Screen Video decoder
472 - Chinese AVS decoder
475 - VC-1/WMV3/WMV9 video decoder
478 - VMware video decoder
481 - WavPack lossless audio decoder
482 - Targa (.TGA) picture decoder
483 - Vorbis audio encoder
484 - Delphine Software .cin demuxer/audio and video decoder
485 - Tiertex .seq demuxer/video decoder
487 - TIFF picture encoder and decoder
488 - GIF picture decoder
489 - Intel Music Coder decoder
490 - Zip Motion Blocks Video encoder
492 - Flash Screen Video encoder
493 - Theora encoding via libtheora
496 - GSM-MS encoder and decoder
498 - DXA demuxer and decoder
500 - Gamecube movie (.THP) playback system
501 - Blackfin optimizations
502 - Interplay C93 demuxer and video decoder
503 - Bethsoft VID demuxer and video decoder
506 - V.Flash PTX decoder
507 - RoQ muxer, RoQ audio encoder
508 - Renderware TXD demuxer and decoder
509 - extern C declarations for C++ removed from headers
510 - sws_flags command line option
514 - OS/2 support removed and restored again
517 - additional SPARC (VIS) optimizations
519 - slice-based parallel H.264 decoding
520 - Monkey's Audio demuxer and decoder
521 - AMV audio and video decoder
523 - H.264 PAFF decoding
524 - Nellymoser ASAO decoder
525 - Beam Software SIFF demuxer and decoder
526 - libvorbis Vorbis decoding removed in favor of native decoder
527 - IntraX8 (J-Frame) subdecoder for WMV2 and VC-1
528 - Ogg (Theora, Vorbis and FLAC) muxer
529 - The "device" muxers and demuxers are now in a new libavdevice library
530 - PC Paintbrush PCX decoder
531 - Sun Rasterfile decoder
532 - TechnoTrend PVA demuxer
533 - Linux Media Labs MPEG-4 (LMLM4) demuxer
534 - AVM2 (Flash 9) SWF muxer
535 - QT variant of IMA ADPCM encoder
537 - iPod/iPhone compatible mp4 muxer
539 - MSN TCP Webcam stream demuxer
540 - RL2 demuxer / decoder
543 - non-recursive Makefiles
545 - MAXIS EA XA (.xa) demuxer / decoder
549 - Electronic Arts CMV decoder
550 - Motion Pixels Video decoder
551 - Motion Pixels MVI demuxer
552 - removed animated GIF decoder/demuxer
553 - D-Cinema audio muxer
554 - Electronic Arts TGV decoder
555 - Apple Lossless Audio Codec (ALAC) encoder
557 - floating point PCM encoder/decoder
559 - DV100 AKA DVCPRO HD decoder and demuxer
560 - E-AC-3 support added to AC-3 decoder
561 - Nellymoser ASAO encoder
562 - ASS and SSA demuxer and muxer
563 - liba52 wrapper removed
564 - SVQ3 watermark decoding support
565 - Speex decoding via libspeex
566 - Electronic Arts TGQ decoder
568 - QCELP / PureVoice decoder
570 - hybrid WavPack support
571 - R3D REDCODE demuxer
572 - ALSA support for playback and record
573 - Electronic Arts TQI decoder
574 - OpenJPEG based JPEG 2000 decoder
575 - NC (NC4600) camera file demuxer
576 - Gopher client support
578 - generic metadata API
583 - DV encoder, DV muxer
584 - Microsoft RLE video decoder
585 - Microsoft Video-1 decoder
586 - Apple Animation (RLE) decoder
587 - Apple Graphics (SMC) decoder
588 - Apple Video (RPZA) decoder
590 - Sega FILM (CPK) file demuxer
591 - Westwood multimedia support (VQA & AUD files)
592 - Id Quake II CIN playback support
594 - FLIC playback support
595 - RealVideo 2.0 (RV20) decoder
596 - Duck TrueMotion v1 (DUCK) video decoder
597 - Sierra VMD demuxer and video decoder
598 - MSZH and ZLIB decoder support
602 - rate distortion optimal cbp support
603 - rate distorted optimal ac prediction for MPEG-4
604 - rate distorted optimal lambda->qp support
605 - AAC encoding with libfaac
606 - Sunplus JPEG codec (SP5X) support
607 - use Lagrange multipler instead of QP for ratecontrol
608 - Theora/VP3 decoding support
609 - XA and ADX ADPCM codecs
610 - export MPEG-2 active display area / pan scan
611 - Add support for configuring with IBM XLC
612 - floating point AAN DCT
613 - initial support for zygo video (not complete)
615 - new audio/video parser API
617 - av_read_frame() and av_seek_frame() support
618 - missing last frame fixes
619 - seek by mouse in ffplay
620 - noise reduction of DCT coefficients
621 - H.263 OBMC & 4MV support
622 - H.263 alternative inter vlc support
624 - H.263 slice structured mode
625 - interlaced DCT support for MPEG-2 encoding
626 - stuffing to stay above min_bitrate
627 - MB type & QP visualization
628 - frame stepping for ffplay
629 - interlaced motion estimation
630 - alternate scantable support
631 - SVCD scan offset support
634 - quantizer noise shaping
635 - G.726 ADPCM audio codec
637 - multithreaded/SMP motion estimation
638 - multithreaded/SMP encoding for MPEG-1/MPEG-2/MPEG-4/H.263
639 - multithreaded/SMP decoding for MPEG-2
641 - Metrowerks CodeWarrior suppport
642 - H.263+ custom pcf support
643 - nicer output for 'ffmpeg -formats'
645 - SGI image format, encoding and decoding
646 - H.264 loop filter support
647 - H.264 CABAC support
648 - nicer looking arrows for the motion vector visualization
649 - improved VCD support
650 - audio timestamp drift compensation
651 - MPEG-2 YUV 422/444 support
652 - polyphase kaiser windowed sinc and blackman nuttall windowed sinc audio resample
653 - better image scaling
655 - correctly interleave packets during encoding
656 - VIS optimized motion compensation
657 - intra_dc_precision>0 encoding support
658 - support reuse of motion vectors/MB types/field select values of the source video
659 - more accurate deblock filter
661 - many optimizations and bugfixes
662 - FunCom ISS audio file demuxer and according ADPCM decoding
667 - MPEG-2 video encoding (Michael)
668 - Id RoQ playback subsystem (Mike Melanson and Tim Ferguson)
669 - Wing Commander III Movie (.mve) file playback subsystem (Mike Melanson
671 - Xan DPCM audio decoder (Mario Brito)
672 - Interplay MVE playback subsystem (Mike Melanson)
673 - Duck DK3 and DK4 ADPCM audio decoders (Mike Melanson)
678 - RealAudio 1.0 (14_4) and 2.0 (28_8) native decoders. Author unknown, code from mplayerhq
679 (originally from public domain player for Amiga at http://www.honeypot.net/audio)
680 - current version now also compiles with older GCC (Fabrice)
681 - 4X multimedia playback system including 4xm file demuxer (Mike
682 Melanson), and 4X video and audio codecs (Michael)
683 - Creative YUV (CYUV) decoder (Mike Melanson)
684 - FFV1 codec (our very simple lossless intra only codec, compresses much better
685 than HuffYUV) (Michael)
686 - ASV1 (Asus), H.264, Intel indeo3 codecs have been added (various)
687 - tiny PNG encoder and decoder, tiny GIF decoder, PAM decoder (PPM with
688 alpha support), JPEG YUV colorspace support. (Fabrice Bellard)
689 - ffplay has been replaced with a newer version which uses SDL (optionally)
690 for multiplatform support (Fabrice)
691 - Sorenson Version 3 codec (SVQ3) support has been added (decoding only) - donated
693 - AMR format has been added (Johannes Carlsson)
694 - 3GP support has been added (Johannes Carlsson)
695 - VP3 codec has been added (Mike Melanson)
696 - more MPEG-1/2 fixes
697 - better multiplatform support, MS Visual Studio fixes (various)
698 - AltiVec optimizations (Magnus Damn and others)
699 - SH4 processor support has been added (BERO)
700 - new public interfaces (avcodec_get_pix_fmt) (Roman Shaposhnick)
701 - VOB streaming support (Brian Foley)
702 - better MP3 autodetection (Andriy Rysin)
703 - qpel encoding (Michael)
704 - 4mv+b frames encoding finally fixed (Michael)
705 - chroma ME (Michael)
706 - 5 comparison functions for ME (Michael)
707 - B-frame encoding speedup (Michael)
708 - WMV2 codec (unfinished - Michael)
709 - user specified diamond size for EPZS (Michael)
710 - Playstation STR playback subsystem, still experimental (Mike and Michael)
711 - ASV2 codec (Michael)
712 - CLJR decoder (Alex)
714 .. And lots more new enhancements and fixes.
719 - completely new integer only MPEG audio layer 1/2/3 decoder rewritten
721 - Recoded DCT and motion vector search with gcc (no longer depends on nasm)
722 - fix quantization bug in AC3 encoder
723 - added PCM codecs and format. Corrected WAV/AVI/ASF PCM issues
724 - added prototype ffplay program
725 - added GOB header parsing on H.263/H.263+ decoder (Juanjo)
726 - bug fix on MCBPC tables of H.263 (Juanjo)
727 - bug fix on DC coefficients of H.263 (Juanjo)
728 - added Advanced Prediction Mode on H.263/H.263+ decoder (Juanjo)
729 - now we can decode H.263 streams found in QuickTime files (Juanjo)
730 - now we can decode H.263 streams found in VIVO v1 files(Juanjo)
731 - preliminary RTP "friendly" mode for H.263/H.263+ coding. (Juanjo)
732 - added GOB header for H.263/H.263+ coding on RTP mode (Juanjo)
733 - now H.263 picture size is returned on the first decoded frame (Juanjo)
734 - added first regression tests
735 - added MPEG-2 TS demuxer
736 - new demux API for libav
737 - more accurate and faster IDCT (Michael)
738 - faster and entropy-controlled motion search (Michael)
739 - two pass video encoding (Michael)
740 - new video rate control (Michael)
741 - added MSMPEG4V1, MSMPEGV2 and WMV1 support (Michael)
742 - great performance improvement of video encoders and decoders (Michael)
743 - new and faster bit readers and vlc parsers (Michael)
744 - high quality encoding mode: tries all macroblock/VLC types (Michael)
745 - added DV video decoder
746 - preliminary RTP/RTSP support in ffserver and libavformat
747 - H.263+ AIC decoding/encoding support (Juanjo)
748 - VCD MPEG-PS mode (Juanjo)
749 - PSNR stuff (Juanjo)
750 - simple stats output (Juanjo)
751 - 16-bit and 15-bit RGB/BGR/GBR support (Bisqwit)
756 - some header fixes (Zdenek Kabelac <kabi at informatics.muni.cz>)
757 - many MMX optimizations (Nick Kurshev <nickols_k at mail.ru>)
758 - added configure system (actually a small shell script)
759 - added MPEG audio layer 1/2/3 decoding using LGPL'ed mpglib by
760 Michael Hipp (temporary solution - waiting for integer only
762 - fixed VIDIOCSYNC interrupt
763 - added Intel H.263 decoding support ('I263' AVI fourCC)
764 - added Real Video 1.0 decoding (needs further testing)
765 - simplified image formats again. Added PGM format (=grey
766 pgm). Renamed old PGM to PGMYUV.
767 - fixed msmpeg4 slice issues (tell me if you still find problems)
768 - fixed OpenDivX bugs with newer versions (added VOL header decoding)
769 - added support for MPlayer interface
770 - added macroblock skip optimization
771 - added MJPEG decoder
772 - added mmx/mmxext IDCT from libmpeg2
773 - added pgmyuvpipe, ppm, and ppm_pipe formats (original patch by Celer
774 <celer at shell.scrypt.net>)
775 - added pixel format conversion layer (e.g. for MJPEG or PPM)
776 - added deinterlacing option
778 - MPEG-4 vol header fixes (Jonathan Marsden <snmjbm at pacbell.net>)
779 - ARM optimizations (Lionel Ulmer <lionel.ulmer at free.fr>).
780 - Windows porting of file converter
781 - added MJPEG raw format (input/ouput)
782 - added JPEG image format support (input/output)
787 - fixed some std header definitions (Bjorn Lindgren
788 <bjorn.e.lindgren at telia.com>).
789 - added MPEG demuxer (MPEG-1 and 2 compatible).
791 - added prototype RM demuxer
792 - added AC3 decoding (done with libac3 by Aaron Holtzman)
793 - added decoding codec parameter guessing (.e.g. for MPEG, because the
794 header does not include them)
795 - fixed header generation in MPEG-1, AVI and ASF muxer: wmplayer can now
796 play them (only tested video)
797 - fixed H.263 white bug
798 - fixed phase rounding in img resample filter
799 - add MMX code for polyphase img resample filter
800 - added CPU autodetection
801 - added generic title/author/copyright/comment string handling (ASF and RM
803 - added SWF demux to extract MP3 track (not usable yet because no MP3
805 - added fractional frame rate support
806 - codecs are no longer searched by read_header() (should fix ffserver
812 - BGR24 patch (initial patch by Jeroen Vreeken <pe1rxq at amsat.org>)
813 - fixed raw yuv output
814 - added motion rounding support in MPEG-4
815 - fixed motion bug rounding in MSMPEG4
816 - added B-frame handling in video core
817 - added full MPEG-1 decoding support
818 - added partial (frame only) MPEG-2 support
819 - changed the FOURCC code for H.263 to "U263" to be able to see the
820 +AVI/H.263 file with the UB Video H.263+ decoder. MPlayer works with
821 this +codec ;) (JuanJo).
822 - Halfpel motion estimation after MB type selection (JuanJo)
823 - added pgm and .Y.U.V output format
824 - suppressed 'img:' protocol. Simply use: /tmp/test%d.[pgm|Y] as input or
826 - added pgmpipe I/O format (original patch from Martin Aumueller
827 <lists at reserv.at>, but changed completely since we use a format
828 instead of a protocol)
833 - added H.263/MPEG-4/MSMPEG4 decoding support. MPEG-4 decoding support
834 (for OpenDivX) is almost complete: 8x8 MVs and rounding are
835 missing. MSMPEG4 support is complete.
836 - added prototype MPEG-1 decoder. Only I- and P-frames handled yet (it
837 can decode ffmpeg MPEGs :-)).
838 - added libavcodec API documentation (see apiexample.c).
839 - fixed image polyphase bug (the bottom of some images could be
841 - added support for non clipped motion vectors (decoding only)
842 and image sizes non-multiple of 16
843 - added support for AC prediction (decoding only)
844 - added file overwrite confirmation (can be disabled with -y)
845 - added custom size picture to H.263 using H.263+ (Juanjo)
850 - added MSMPEG4 (aka DivX) compatible encoder. Changed default codec
851 of AVI and ASF to DIV3.
852 - added -me option to set motion estimation method
853 (default=log). suppressed redundant -hq option.
854 - added options -acodec and -vcodec to force a given codec (useful for
857 - improved dct_quantize speed
858 - factorized some motion estimation code
863 - removing grab code from ffserver and moved it to ffmpeg. Added
864 multistream support to ffmpeg.
865 - added timeshifting support for live feeds (option ?date=xxx in the
867 - added high quality image resize code with polyphase filter (need
868 mmx/see optimization). Enable multiple image size support in ffserver.
869 - added multi live feed support in ffserver
870 - suppressed master feature from ffserver (it should be done with an
871 external program which opens the .ffm url and writes it to another
873 - added preliminary support for video stream parsing (WAV and AVI half
874 done). Added proper support for audio/video file conversion in
876 - added preliminary support for video file sending from ffserver
877 - redesigning I/O subsystem: now using URL based input and output
879 - added WAV format support
880 - added "tty user interface" to ffmpeg to stop grabbing gracefully
881 - added MMX/SSE optimizations to SAD (Sums of Absolutes Differences)
882 (Juan J. Sierralta P. a.k.a. "Juanjo" <juanjo at atmlab.utfsm.cl>)
883 - added MMX DCT from mpeg2_movie 1.5 (Juanjo)
884 - added new motion estimation algorithms, log and phods (Juanjo)
885 - changed directories: libav for format handling, libavcodec for
891 - added stereo in MPEG audio encoder
896 - added 'high quality' mode which use motion vectors. It can be used in
897 real time at low resolution.
898 - fixed rounding problems which caused quality problems at high
899 bitrates and large GOP size
902 version 0.3.2: small fixes
908 version 0.3.1: added avi/divx support
911 - added MPEG-4 codec compatible with OpenDivX. It is based on the H.263 codec
912 - added sound for flash format (not tested)
915 version 0.3: initial public release