1 Entries are sorted chronologically from oldest to youngest within each release,
2 releases are sorted from youngest to oldest.
6 - support ID3v2 tags in ASF files
7 - reference-counting for AVFrame and AVPacket data
8 - avconv now fails when input options are used for output file
10 - new avconv options -filter_script and -filter_complex_script, which allow a
11 filtergraph description to be read from a file
12 - uniform options syntax across all filters
13 - new interlace filter
15 - new asetpts filter (same as setpts, but for audio)
16 - new trim and atrim filters
17 - avconv -t and -ss (output-only) options are now sample-accurate when
19 - Matroska muxer can now put the index at the beginning of the file.
20 - avconv -deinterlace option removed, the yadif filter should be used instead
21 - Apple Intermediate Codec decoder
22 - Escape 130 video decoder
23 - support for slice multithreading in libavfilter
24 - VC-1 interlaced B-frame support
28 - av_basename and av_dirname
29 - adobe and limelight publisher authentication in RTMP
30 - VDPAU hardware acceleration through normal hwaccel
35 - ashowinfo audio filter
36 - 24-bit FLAC encoding
38 - deprecated the avconv -vol option. the volume filter is to be used instead.
39 - multi-channel ALAC encoding up to 7.1
40 - TAK demuxer, parser, and decoder
41 - adaptive frame-level multithreading for H.264
45 - metadata (INFO tag) support in WAV muxer
46 - support for building DLLs using MSVC
47 - remove avserver daemon mode
48 - support building on the Plan 9 operating system
49 - ffv1: support version 1.3
54 - XWD encoder and decoder
55 - Support for fragmentation in the mov/mp4 muxer
56 - ISMV (Smooth Streaming) muxer
57 - CDXL demuxer and decoder
58 - Apple ProRes encoder
59 - Sun Rasterfile Encoder
61 - ID3v2 attached pictures reading and writing
62 - WMA Lossless decoder
64 - RealAudio Lossless decoder
66 - drop support for avconv without libavfilter
67 - add libavresample audio conversion library
68 - audio filters support in libavfilter and avconv
72 - avprobe output is now standard INI or JSON. The old format can still
75 - channelsplit audio filter
76 - RTMPT protocol support
77 - iLBC encoding/decoding via libilbc
78 - Microsoft Screen 1 decoder
80 - audio channel mapping filter
81 - Microsoft ATC Screen decoder
83 - TechSmith Screen Codec 2 decoder
84 - AAC encoding via libfdk-aac
85 - Microsoft Expression Encoder Screen decoder
86 - RTMPS protocol support
87 - RTMPTS protocol support
88 - JPEG 2000 encoding support through OpenJPEG
89 - G.723.1 demuxer and decoder
90 - RTMPE protocol support
91 - RTMPTE protocol support
92 - Canopus Lossless Codec decoder
93 - avconv -shortest option is now per-output file,
94 -pass and -passlogfile are now per-output stream
96 - Microsoft Screen 2 decoder
97 - RTP depacketization of JPEG
98 - Smooth Streaming live segmenter muxer
99 - RTP packetization of JPEG
100 - Opus decoder and encoder using libopus
101 - remove -same_quant, it hasn't worked for years
102 - support for building with MSVC
113 - Automatic thread count based on detection number of (available) CPU cores
114 - Deprecate libpostproc. If desired, the switch --enable-postproc will
115 enable it but it may be removed in a later Libav release.
116 - rv34: frame-level multi-threading
117 - optimized iMDCT transform on x86 using SSE for for mpegaudiodec
123 - Flash Screen Video 2 decoder
124 - ffplay/ffprobe/ffserver renamed to avplay/avprobe/avserver
125 - ffmpeg deprecated, added avconv, which is almost the same for now, except
126 for a few incompatible changes in the options, which will hopefully make them
127 easier to use. The changes are:
128 * The options placement is now strictly enforced! While in theory the
129 options for ffmpeg should be given in [input options] -i INPUT [output
130 options] OUTPUT order, in practice it was possible to give output options
131 before the -i and it mostly worked. Except when it didn't - the behavior was
132 a bit inconsistent. In avconv, it is not possible to mix input and output
133 options. All non-global options are reset after an input or output filename.
134 * All per-file options are now truly per-file - they apply only to the next
135 input or output file and specifying different values for different files
136 will now work properly (notably -ss and -t options).
137 * All per-stream options are now truly per-stream - it is possible to
138 specify which stream(s) should a given option apply to. See the Stream
139 specifiers section in the avconv manual for details.
140 * In ffmpeg some options (like -newvideo/-newaudio/...) are irregular in the
141 sense that they're specified after the output filename instead of before,
142 like all other options. In avconv this irregularity is removed, all options
143 apply to the next input or output file.
144 * -newvideo/-newaudio/-newsubtitle options were removed. Not only were they
145 irregular and highly confusing, they were also redundant. In avconv the -map
146 option will create new streams in the output file and map input streams to
147 them. E.g. avconv -i INPUT -map 0 OUTPUT will create an output stream for
148 each stream in the first input file.
149 * The -map option now has slightly different and more powerful syntax:
150 + Colons (':') are used to separate file index/stream type/stream index
151 instead of dots. Comma (',') is used to separate the sync stream instead
152 of colon.. This is done for consistency with other options.
153 + It's possible to specify stream type. E.g. -map 0:a:2 creates an
154 output stream from the third input audio stream.
155 + Omitting the stream index now maps all the streams of the given type,
156 not just the first. E.g. -map 0:s creates output streams for all the
157 subtitle streams in the first input file.
158 + Since -map can now match multiple streams, negative mappings were
159 introduced. Negative mappings disable some streams from an already
160 defined map. E.g. '-map 0 -map -0:a:1' means 'create output streams for
161 all the stream in the first input file, except for the second audio
163 * There is a new option -c (or -codec) for choosing the decoder/encoder to
164 use, which allows to precisely specify target stream(s) consistently with
165 other options. E.g. -c:v lib264 sets the codec for all video streams, -c:a:0
166 libvorbis sets the codec for the first audio stream and -c copy copies all
167 the streams without reencoding. Old -vcodec/-acodec/-scodec options are now
169 * It is now possible to precisely specify which stream should an AVOption
170 apply to. E.g. -b:v:0 2M sets the bitrate for the first video stream, while
171 -b:a 128k sets the bitrate for all audio streams. Note that the old -ab 128k
172 syntax is deprecated and will stop working soon.
173 * -map_chapters now takes only an input file index and applies to the next
174 output file. This is consistent with how all the other options work.
175 * -map_metadata now takes only an input metadata specifier and applies to
176 the next output file. Output metadata specifier is now part of the option
177 name, similarly to the AVOptions/map/codec feature above.
178 * -metadata can now be used to set metadata on streams and chapters, e.g.
179 -metadata:s:1 language=eng sets the language of the first stream to 'eng'.
180 This made -vlang/-alang/-slang options redundant, so they were removed.
181 * -qscale option now uses stream specifiers and applies to all streams, not
182 just video. I.e. plain -qscale number would now apply to all streams. To get
183 the old behavior, use -qscale:v. Also there is now a shortcut -q for -qscale
184 and -aq is now an alias for -q:a.
185 * -vbsf/-absf/-sbsf options were removed and replaced by a -bsf option which
186 uses stream specifiers. Use -bsf:v/a/s instead of the old options.
187 * -itsscale option now uses stream specifiers, so its argument is only the
189 * -intra option was removed, use -g 0 for the same effect.
190 * -psnr option was removed, use -flags +psnr for the same effect.
191 * -vf option is now an alias to the new -filter option, which uses stream specifiers.
192 * -vframes/-aframes/-dframes options are now aliases to the new -frames option.
193 * -vtag/-atag/-stag options are now aliases to the new -tag option.
195 - Windows Media Image decoder
199 - libcdio-paranoia input device for audio CD grabbing
201 - Apple ProRes decoder
202 - CELT in Ogg demuxing
203 - VC-1 interlaced decoding
204 - lut, lutrgb, and lutyuv filters
207 - Speex encoding via libspeex
208 - 4:2:2 H.264 decoding support
209 - 4:2:2 and 4:4:4 H.264 encoding with libx264
210 - Pulseaudio input device
211 - replacement Indeo 3 decoder
212 - TLS/SSL and HTTPS protocol support
213 - AVOptions API rewritten and documented
214 - most of CODEC_FLAG2_*, some CODEC_FLAG_* and many codec-specific fields in
215 AVCodecContext deprecated. Codec private options should be used instead.
216 - Properly working defaults in libx264 wrapper, support for native presets.
217 - Encrypted OMA files support
218 - Discworld II BMV decoding support
220 - OS X Video Decoder Acceleration (VDA) support
221 - CRI ADX audio format muxer and demuxer
222 - Playstation Portable PMP format demuxer
223 - PCM format support in OMA demuxer
225 - Dxtory capture format decoder
226 - v410 QuickTime uncompressed 4:4:4 10-bit encoder and decoder
228 - Simple segmenting muxer
235 - E-AC-3 audio encoder
236 - ac3enc: add channel coupling support
237 - floating-point sample format support for (E-)AC-3, DCA, AAC, Vorbis decoders
238 - H.264/MPEG frame-level multithreading
239 - av_metadata_* functions renamed to av_dict_* and moved to libavutil
240 - 4:4:4 H.264 decoding support
241 - 10-bit H.264 optimizations for x86
242 - bump libswscale for recently reported ABI break
247 - VP8 frame-level multithreading
248 - NEON optimizations for VP8
249 - removed a lot of deprecated API cruft
250 - FFT and IMDCT optimizations for AVX (Sandy Bridge) processors
252 - SMPTE 302M AES3 audio decoder
253 - ffmpeg no longer quits after the 'q' key is pressed; use 'ctrl+c' instead
254 - 9bit and 10bit per sample support in the H.264 decoder
259 - WebM support in Matroska de/muxer
260 - low overhead Ogg muxing
262 - VP8 de/encoding via libvpx
263 - Demuxer for On2's IVF format
264 - Pictor/PC Paint decoder
266 - libfaad2 wrapper removed
267 - DTS-ES extension (XCh) decoding support
269 - RTSP tunneling over HTTP
270 - RTP depacketization of SVQ3
271 - -strict inofficial replaced by -strict unofficial
272 - ffplay -exitonkeydown and -exitonmousedown options added
273 - native GSM / GSM MS decoder
274 - RTP depacketization of QDM2
275 - ANSI/ASCII art playback system
276 - Lego Mindstorms RSO de/muxer
277 - SubRip subtitle file muxer and demuxer
278 - Chinese AVS encoding via libxavs
279 - ffprobe -show_packets option added
280 - RTP packetization of Theora and Vorbis
281 - RTP depacketization of MP4A-LATM
282 - RTP packetization and depacketization of VP8
284 - Apple HTTP Live Streaming demuxer
287 - G.722 ADPCM audio encoder/decoder
290 - frei0r wrapper filter
291 - change crop filter syntax to width:height:x:y
292 - make the crop filter accept parametric expressions
293 - make ffprobe accept AVFormatContext options
296 - Demuxer for Leitch/Harris' VR native stream format (LXF)
297 - RTP depacketization of the X-QT QuickTime format
298 - SAP (Session Announcement Protocol, RFC 2974) muxer and demuxer
300 - ffmpeg -crop* options removed
301 - transpose filter added
302 - ffmpeg -force_key_frames option added
303 - demuxer for receiving raw rtp:// URLs without an SDP description
304 - single stream LATM/LOAS decoder
305 - setpts filter added
306 - Win64 support for optimized x86 assembly functions
307 - MJPEG/AVI1 to JPEG/JFIF bitstream filter
308 - ASS subtitle encoder and decoder
309 - IEC 61937 encapsulation for E-AC-3, TrueHD, DTS-HD (for HDMI passthrough)
310 - overlay filter added
311 - rename aspect filter to setdar, and pixelaspect to setsar
313 - Mobotix .mxg demuxer
314 - frei0r source added
315 - hqdn3d filter added
316 - RTP depacketization of QCELP
318 - gradfun filter added
320 - replace the ocv_smooth filter with a more generic ocv filter
321 - Windows Televison (WTV) demuxer
322 - FFmpeg metadata format muxer and demuxer
323 - SubRip (srt) subtitle decoder
324 - floating-point AC-3 encoder added
326 - ffmpeg -copytb option added
328 - Wing Commander IV movies decoder added
330 - Bink version 'b' audio and video decoder
331 - Bitmap Brothers JV playback system
332 - Apple HTTP Live Streaming protocol handler
333 - sndio support for playback and record
334 - Linux framebuffer input device added
335 - Chronomaster DFA decoder
336 - Mobotix MxPEG decoder
337 - AAC encoding via libvo-aacenc
338 - AMR-WB encoding via libvo-amrwbenc
340 - fieldorder video filter added
345 - PB-frame decoding for H.263
346 - deprecated vhook subsystem removed
347 - deprecated old scaler removed
349 - Alpha channel scaler
351 - RTP packetization of H.263
352 - RTP packetization of AMR
353 - RTP depacketization of Vorbis
354 - CorePNG decoding support
355 - Cook multichannel decoding support
356 - introduced avlanguage helpers in libavformat
357 - 8088flex TMV demuxer and decoder
358 - per-stream language-tags extraction in asfdec
359 - V210 decoder and encoder
360 - remaining GPL parts in AC-3 decoder converted to LGPL
362 - SoX native format muxer and demuxer
363 - AMR-NB decoding/encoding, AMR-WB decoding via OpenCORE libraries
365 - Electronic Arts Madcow decoder
366 - DivX (XSUB) subtitle encoder
367 - nonfree libamr support for AMR-NB/WB decoding/encoding removed
368 - experimental AAC encoder
369 - RTP depacketization of ASF and RTSP from WMS servers
370 - RTMP support in libavformat
371 - noX handling for OPT_BOOL X options
373 - IEC-61937 compatible Muxer
375 - Bluray (PGS) subtitle decoder
376 - LPCM support in MPEG-TS (HDMV RID as found on Blu-ray disks)
378 - Core Audio Format demuxer
380 - MD STUDIO audio demuxer
381 - RF64 support in WAV demuxer
382 - MPEG-4 Audio Lossless Coding (ALS) decoder
383 - -formats option split into -formats, -codecs, -bsfs, and -protocols
385 - CDG demuxer and decoder
387 - Auravision Aura 1 and 2 decoders
388 - Deluxe Paint Animation playback system
390 - Adobe Filmstrip muxer and demuxer
391 - RTP depacketization of H.263
392 - Bink demuxer and audio/video decoders
393 - enable symbol versioning by default for linkers that support it
394 - IFF PBM/ILBM bitmap decoder
397 - RTP depacketization of AMR
403 - Kega Game Video (KGV1) decoder
404 - VorbisComment writing for FLAC, Ogg FLAC and Ogg Speex files
405 - RTP depacketization of Theora
406 - HTTP Digest authentication
407 - RTMP/RTMPT/RTMPS/RTMPE/RTMPTE protocol support via librtmp
408 - Psygnosis YOP demuxer and video decoder
409 - spectral extension support in the E-AC-3 decoder
410 - unsharp video filter
411 - RTP hinting in the mov/3gp/mp4 muxer
412 - Dirac in Ogg demuxing
413 - seek to keyframes in Ogg
414 - 4:2:2 and 4:4:4 Theora decoding
415 - 35% faster VP3/Theora decoding
416 - faster AAC decoding
417 - faster H.264 decoding
418 - RealAudio 1.0 (14.4K) encoder
423 - DV50 AKA DVCPRO50 encoder, decoder, muxer and demuxer
424 - TechSmith Camtasia (TSCC) video decoder
425 - IBM Ultimotion (ULTI) video decoder
426 - Sierra Online audio file demuxer and decoder
427 - Apple QuickDraw (qdrw) video decoder
428 - Creative ADPCM audio decoder (16 bits as well as 8 bits schemes)
429 - Electronic Arts Multimedia (WVE/UV2/etc.) file demuxer
430 - Miro VideoXL (VIXL) video decoder
431 - H.261 video encoder
433 - Nullsoft Video (NSV) file demuxer
434 - Shorten audio decoder
436 - Apple Lossless Audio Codec (ALAC) decoder
437 - Winnov WNV1 video decoder
438 - Autodesk Animator Studio Codec (AASC) decoder
439 - Indeo 2 video decoder
440 - Fraps FPS1 video decoder
441 - Snow video encoder/decoder
442 - Sonic audio encoder/decoder
443 - Vorbis audio decoder
444 - Macromedia ADPCM decoder
445 - Duck TrueMotion 2 video decoder
446 - support for decoding FLX and DTA extensions in FLIC files
447 - H.264 custom quantization matrices support
448 - ffserver fixed, it should now be usable again
450 - Real Cooker audio decoder
451 - TrueSpeech audio decoder
452 - WMA2 audio decoder fixed, now all files should play correctly
453 - RealAudio 14.4 and 28.8 decoders fixed
455 - build system improvements
456 - tabs and trailing whitespace removed from the codebase
457 - CamStudio video decoder
458 - AIFF/AIFF-C audio format, encoding and decoding
459 - ADTS AAC file reading and writing
460 - Creative VOC file reading and writing
461 - American Laser Games multimedia (*.mm) playback system
462 - Zip Motion Blocks Video decoder
463 - improved Theora/VP3 decoder
464 - True Audio (TTA) decoder
465 - AVS demuxer and video decoder
467 - Smacker demuxer and decoder
468 - NuppelVideo/MythTV demuxer and RTjpeg decoder
470 - MPEG-2 intra VLC support
471 - MPEG-2 4:2:2 encoder
472 - Flash Screen Video decoder
474 - Chinese AVS decoder
477 - VC-1/WMV3/WMV9 video decoder
480 - VMware video decoder
483 - WavPack lossless audio decoder
484 - Targa (.TGA) picture decoder
485 - Vorbis audio encoder
486 - Delphine Software .cin demuxer/audio and video decoder
487 - Tiertex .seq demuxer/video decoder
489 - TIFF picture encoder and decoder
490 - GIF picture decoder
491 - Intel Music Coder decoder
492 - Zip Motion Blocks Video encoder
494 - Flash Screen Video encoder
495 - Theora encoding via libtheora
498 - GSM-MS encoder and decoder
500 - DXA demuxer and decoder
502 - Gamecube movie (.THP) playback system
503 - Blackfin optimizations
504 - Interplay C93 demuxer and video decoder
505 - Bethsoft VID demuxer and video decoder
508 - V.Flash PTX decoder
509 - RoQ muxer, RoQ audio encoder
510 - Renderware TXD demuxer and decoder
511 - extern C declarations for C++ removed from headers
512 - sws_flags command line option
516 - OS/2 support removed and restored again
519 - additional SPARC (VIS) optimizations
521 - slice-based parallel H.264 decoding
522 - Monkey's Audio demuxer and decoder
523 - AMV audio and video decoder
525 - H.264 PAFF decoding
526 - Nellymoser ASAO decoder
527 - Beam Software SIFF demuxer and decoder
528 - libvorbis Vorbis decoding removed in favor of native decoder
529 - IntraX8 (J-Frame) subdecoder for WMV2 and VC-1
530 - Ogg (Theora, Vorbis and FLAC) muxer
531 - The "device" muxers and demuxers are now in a new libavdevice library
532 - PC Paintbrush PCX decoder
533 - Sun Rasterfile decoder
534 - TechnoTrend PVA demuxer
535 - Linux Media Labs MPEG-4 (LMLM4) demuxer
536 - AVM2 (Flash 9) SWF muxer
537 - QT variant of IMA ADPCM encoder
539 - iPod/iPhone compatible mp4 muxer
541 - MSN TCP Webcam stream demuxer
542 - RL2 demuxer / decoder
545 - non-recursive Makefiles
547 - MAXIS EA XA (.xa) demuxer / decoder
551 - Electronic Arts CMV decoder
552 - Motion Pixels Video decoder
553 - Motion Pixels MVI demuxer
554 - removed animated GIF decoder/demuxer
555 - D-Cinema audio muxer
556 - Electronic Arts TGV decoder
557 - Apple Lossless Audio Codec (ALAC) encoder
559 - floating point PCM encoder/decoder
561 - DV100 AKA DVCPRO HD decoder and demuxer
562 - E-AC-3 support added to AC-3 decoder
563 - Nellymoser ASAO encoder
564 - ASS and SSA demuxer and muxer
565 - liba52 wrapper removed
566 - SVQ3 watermark decoding support
567 - Speex decoding via libspeex
568 - Electronic Arts TGQ decoder
570 - QCELP / PureVoice decoder
572 - hybrid WavPack support
573 - R3D REDCODE demuxer
574 - ALSA support for playback and record
575 - Electronic Arts TQI decoder
576 - OpenJPEG based JPEG 2000 decoder
577 - NC (NC4600) camera file demuxer
578 - Gopher client support
580 - generic metadata API
585 - DV encoder, DV muxer
586 - Microsoft RLE video decoder
587 - Microsoft Video-1 decoder
588 - Apple Animation (RLE) decoder
589 - Apple Graphics (SMC) decoder
590 - Apple Video (RPZA) decoder
592 - Sega FILM (CPK) file demuxer
593 - Westwood multimedia support (VQA & AUD files)
594 - Id Quake II CIN playback support
596 - FLIC playback support
597 - RealVideo 2.0 (RV20) decoder
598 - Duck TrueMotion v1 (DUCK) video decoder
599 - Sierra VMD demuxer and video decoder
600 - MSZH and ZLIB decoder support
604 - rate distortion optimal cbp support
605 - rate distorted optimal ac prediction for MPEG-4
606 - rate distorted optimal lambda->qp support
607 - AAC encoding with libfaac
608 - Sunplus JPEG codec (SP5X) support
609 - use Lagrange multipler instead of QP for ratecontrol
610 - Theora/VP3 decoding support
611 - XA and ADX ADPCM codecs
612 - export MPEG-2 active display area / pan scan
613 - Add support for configuring with IBM XLC
614 - floating point AAN DCT
615 - initial support for zygo video (not complete)
617 - new audio/video parser API
619 - av_read_frame() and av_seek_frame() support
620 - missing last frame fixes
621 - seek by mouse in ffplay
622 - noise reduction of DCT coefficients
623 - H.263 OBMC & 4MV support
624 - H.263 alternative inter vlc support
626 - H.263 slice structured mode
627 - interlaced DCT support for MPEG-2 encoding
628 - stuffing to stay above min_bitrate
629 - MB type & QP visualization
630 - frame stepping for ffplay
631 - interlaced motion estimation
632 - alternate scantable support
633 - SVCD scan offset support
636 - quantizer noise shaping
637 - G.726 ADPCM audio codec
639 - multithreaded/SMP motion estimation
640 - multithreaded/SMP encoding for MPEG-1/MPEG-2/MPEG-4/H.263
641 - multithreaded/SMP decoding for MPEG-2
643 - Metrowerks CodeWarrior suppport
644 - H.263+ custom pcf support
645 - nicer output for 'ffmpeg -formats'
647 - SGI image format, encoding and decoding
648 - H.264 loop filter support
649 - H.264 CABAC support
650 - nicer looking arrows for the motion vector visualization
651 - improved VCD support
652 - audio timestamp drift compensation
653 - MPEG-2 YUV 422/444 support
654 - polyphase kaiser windowed sinc and blackman nuttall windowed sinc audio resample
655 - better image scaling
657 - correctly interleave packets during encoding
658 - VIS optimized motion compensation
659 - intra_dc_precision>0 encoding support
660 - support reuse of motion vectors/MB types/field select values of the source video
661 - more accurate deblock filter
663 - many optimizations and bugfixes
664 - FunCom ISS audio file demuxer and according ADPCM decoding
669 - MPEG-2 video encoding (Michael)
670 - Id RoQ playback subsystem (Mike Melanson and Tim Ferguson)
671 - Wing Commander III Movie (.mve) file playback subsystem (Mike Melanson
673 - Xan DPCM audio decoder (Mario Brito)
674 - Interplay MVE playback subsystem (Mike Melanson)
675 - Duck DK3 and DK4 ADPCM audio decoders (Mike Melanson)
680 - RealAudio 1.0 (14_4) and 2.0 (28_8) native decoders. Author unknown, code from mplayerhq
681 (originally from public domain player for Amiga at http://www.honeypot.net/audio)
682 - current version now also compiles with older GCC (Fabrice)
683 - 4X multimedia playback system including 4xm file demuxer (Mike
684 Melanson), and 4X video and audio codecs (Michael)
685 - Creative YUV (CYUV) decoder (Mike Melanson)
686 - FFV1 codec (our very simple lossless intra only codec, compresses much better
687 than HuffYUV) (Michael)
688 - ASV1 (Asus), H.264, Intel indeo3 codecs have been added (various)
689 - tiny PNG encoder and decoder, tiny GIF decoder, PAM decoder (PPM with
690 alpha support), JPEG YUV colorspace support. (Fabrice Bellard)
691 - ffplay has been replaced with a newer version which uses SDL (optionally)
692 for multiplatform support (Fabrice)
693 - Sorenson Version 3 codec (SVQ3) support has been added (decoding only) - donated
695 - AMR format has been added (Johannes Carlsson)
696 - 3GP support has been added (Johannes Carlsson)
697 - VP3 codec has been added (Mike Melanson)
698 - more MPEG-1/2 fixes
699 - better multiplatform support, MS Visual Studio fixes (various)
700 - AltiVec optimizations (Magnus Damn and others)
701 - SH4 processor support has been added (BERO)
702 - new public interfaces (avcodec_get_pix_fmt) (Roman Shaposhnick)
703 - VOB streaming support (Brian Foley)
704 - better MP3 autodetection (Andriy Rysin)
705 - qpel encoding (Michael)
706 - 4mv+b frames encoding finally fixed (Michael)
707 - chroma ME (Michael)
708 - 5 comparison functions for ME (Michael)
709 - B-frame encoding speedup (Michael)
710 - WMV2 codec (unfinished - Michael)
711 - user specified diamond size for EPZS (Michael)
712 - Playstation STR playback subsystem, still experimental (Mike and Michael)
713 - ASV2 codec (Michael)
714 - CLJR decoder (Alex)
716 .. And lots more new enhancements and fixes.
721 - completely new integer only MPEG audio layer 1/2/3 decoder rewritten
723 - Recoded DCT and motion vector search with gcc (no longer depends on nasm)
724 - fix quantization bug in AC3 encoder
725 - added PCM codecs and format. Corrected WAV/AVI/ASF PCM issues
726 - added prototype ffplay program
727 - added GOB header parsing on H.263/H.263+ decoder (Juanjo)
728 - bug fix on MCBPC tables of H.263 (Juanjo)
729 - bug fix on DC coefficients of H.263 (Juanjo)
730 - added Advanced Prediction Mode on H.263/H.263+ decoder (Juanjo)
731 - now we can decode H.263 streams found in QuickTime files (Juanjo)
732 - now we can decode H.263 streams found in VIVO v1 files(Juanjo)
733 - preliminary RTP "friendly" mode for H.263/H.263+ coding. (Juanjo)
734 - added GOB header for H.263/H.263+ coding on RTP mode (Juanjo)
735 - now H.263 picture size is returned on the first decoded frame (Juanjo)
736 - added first regression tests
737 - added MPEG-2 TS demuxer
738 - new demux API for libav
739 - more accurate and faster IDCT (Michael)
740 - faster and entropy-controlled motion search (Michael)
741 - two pass video encoding (Michael)
742 - new video rate control (Michael)
743 - added MSMPEG4V1, MSMPEGV2 and WMV1 support (Michael)
744 - great performance improvement of video encoders and decoders (Michael)
745 - new and faster bit readers and vlc parsers (Michael)
746 - high quality encoding mode: tries all macroblock/VLC types (Michael)
747 - added DV video decoder
748 - preliminary RTP/RTSP support in ffserver and libavformat
749 - H.263+ AIC decoding/encoding support (Juanjo)
750 - VCD MPEG-PS mode (Juanjo)
751 - PSNR stuff (Juanjo)
752 - simple stats output (Juanjo)
753 - 16-bit and 15-bit RGB/BGR/GBR support (Bisqwit)
758 - some header fixes (Zdenek Kabelac <kabi at informatics.muni.cz>)
759 - many MMX optimizations (Nick Kurshev <nickols_k at mail.ru>)
760 - added configure system (actually a small shell script)
761 - added MPEG audio layer 1/2/3 decoding using LGPL'ed mpglib by
762 Michael Hipp (temporary solution - waiting for integer only
764 - fixed VIDIOCSYNC interrupt
765 - added Intel H.263 decoding support ('I263' AVI fourCC)
766 - added Real Video 1.0 decoding (needs further testing)
767 - simplified image formats again. Added PGM format (=grey
768 pgm). Renamed old PGM to PGMYUV.
769 - fixed msmpeg4 slice issues (tell me if you still find problems)
770 - fixed OpenDivX bugs with newer versions (added VOL header decoding)
771 - added support for MPlayer interface
772 - added macroblock skip optimization
773 - added MJPEG decoder
774 - added mmx/mmxext IDCT from libmpeg2
775 - added pgmyuvpipe, ppm, and ppm_pipe formats (original patch by Celer
776 <celer at shell.scrypt.net>)
777 - added pixel format conversion layer (e.g. for MJPEG or PPM)
778 - added deinterlacing option
780 - MPEG-4 vol header fixes (Jonathan Marsden <snmjbm at pacbell.net>)
781 - ARM optimizations (Lionel Ulmer <lionel.ulmer at free.fr>).
782 - Windows porting of file converter
783 - added MJPEG raw format (input/ouput)
784 - added JPEG image format support (input/output)
789 - fixed some std header definitions (Bjorn Lindgren
790 <bjorn.e.lindgren at telia.com>).
791 - added MPEG demuxer (MPEG-1 and 2 compatible).
793 - added prototype RM demuxer
794 - added AC3 decoding (done with libac3 by Aaron Holtzman)
795 - added decoding codec parameter guessing (.e.g. for MPEG, because the
796 header does not include them)
797 - fixed header generation in MPEG-1, AVI and ASF muxer: wmplayer can now
798 play them (only tested video)
799 - fixed H.263 white bug
800 - fixed phase rounding in img resample filter
801 - add MMX code for polyphase img resample filter
802 - added CPU autodetection
803 - added generic title/author/copyright/comment string handling (ASF and RM
805 - added SWF demux to extract MP3 track (not usable yet because no MP3
807 - added fractional frame rate support
808 - codecs are no longer searched by read_header() (should fix ffserver
814 - BGR24 patch (initial patch by Jeroen Vreeken <pe1rxq at amsat.org>)
815 - fixed raw yuv output
816 - added motion rounding support in MPEG-4
817 - fixed motion bug rounding in MSMPEG4
818 - added B-frame handling in video core
819 - added full MPEG-1 decoding support
820 - added partial (frame only) MPEG-2 support
821 - changed the FOURCC code for H.263 to "U263" to be able to see the
822 +AVI/H.263 file with the UB Video H.263+ decoder. MPlayer works with
823 this +codec ;) (JuanJo).
824 - Halfpel motion estimation after MB type selection (JuanJo)
825 - added pgm and .Y.U.V output format
826 - suppressed 'img:' protocol. Simply use: /tmp/test%d.[pgm|Y] as input or
828 - added pgmpipe I/O format (original patch from Martin Aumueller
829 <lists at reserv.at>, but changed completely since we use a format
830 instead of a protocol)
835 - added H.263/MPEG-4/MSMPEG4 decoding support. MPEG-4 decoding support
836 (for OpenDivX) is almost complete: 8x8 MVs and rounding are
837 missing. MSMPEG4 support is complete.
838 - added prototype MPEG-1 decoder. Only I- and P-frames handled yet (it
839 can decode ffmpeg MPEGs :-)).
840 - added libavcodec API documentation (see apiexample.c).
841 - fixed image polyphase bug (the bottom of some images could be
843 - added support for non clipped motion vectors (decoding only)
844 and image sizes non-multiple of 16
845 - added support for AC prediction (decoding only)
846 - added file overwrite confirmation (can be disabled with -y)
847 - added custom size picture to H.263 using H.263+ (Juanjo)
852 - added MSMPEG4 (aka DivX) compatible encoder. Changed default codec
853 of AVI and ASF to DIV3.
854 - added -me option to set motion estimation method
855 (default=log). suppressed redundant -hq option.
856 - added options -acodec and -vcodec to force a given codec (useful for
859 - improved dct_quantize speed
860 - factorized some motion estimation code
865 - removing grab code from ffserver and moved it to ffmpeg. Added
866 multistream support to ffmpeg.
867 - added timeshifting support for live feeds (option ?date=xxx in the
869 - added high quality image resize code with polyphase filter (need
870 mmx/see optimization). Enable multiple image size support in ffserver.
871 - added multi live feed support in ffserver
872 - suppressed master feature from ffserver (it should be done with an
873 external program which opens the .ffm url and writes it to another
875 - added preliminary support for video stream parsing (WAV and AVI half
876 done). Added proper support for audio/video file conversion in
878 - added preliminary support for video file sending from ffserver
879 - redesigning I/O subsystem: now using URL based input and output
881 - added WAV format support
882 - added "tty user interface" to ffmpeg to stop grabbing gracefully
883 - added MMX/SSE optimizations to SAD (Sums of Absolutes Differences)
884 (Juan J. Sierralta P. a.k.a. "Juanjo" <juanjo at atmlab.utfsm.cl>)
885 - added MMX DCT from mpeg2_movie 1.5 (Juanjo)
886 - added new motion estimation algorithms, log and phods (Juanjo)
887 - changed directories: libav for format handling, libavcodec for
893 - added stereo in MPEG audio encoder
898 - added 'high quality' mode which use motion vectors. It can be used in
899 real time at low resolution.
900 - fixed rounding problems which caused quality problems at high
901 bitrates and large GOP size
904 version 0.3.2: small fixes
910 version 0.3.1: added avi/divx support
913 - added MPEG-4 codec compatible with OpenDivX. It is based on the H.263 codec
914 - added sound for flash format (not tested)
917 version 0.3: initial public release