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
20 - av_basename and av_dirname
21 - adobe and limelight publisher authentication in RTMP
22 - VDPAU hardware acceleration through normal hwaccel
27 - ashowinfo audio filter
28 - 24-bit FLAC encoding
30 - deprecated the avconv -vol option. the volume filter is to be used instead.
31 - multi-channel ALAC encoding up to 7.1
32 - TAK demuxer, parser, and decoder
33 - adaptive frame-level multithreading for H.264
37 - metadata (INFO tag) support in WAV muxer
38 - support for building DLLs using MSVC
39 - remove avserver daemon mode
40 - support building on the Plan 9 operating system
41 - ffv1: support version 1.3
46 - XWD encoder and decoder
47 - Support for fragmentation in the mov/mp4 muxer
48 - ISMV (Smooth Streaming) muxer
49 - CDXL demuxer and decoder
50 - Apple ProRes encoder
51 - Sun Rasterfile Encoder
53 - ID3v2 attached pictures reading and writing
54 - WMA Lossless decoder
56 - RealAudio Lossless decoder
58 - drop support for avconv without libavfilter
59 - add libavresample audio conversion library
60 - audio filters support in libavfilter and avconv
64 - avprobe output is now standard INI or JSON. The old format can still
67 - channelsplit audio filter
68 - RTMPT protocol support
69 - iLBC encoding/decoding via libilbc
70 - Microsoft Screen 1 decoder
72 - audio channel mapping filter
73 - Microsoft ATC Screen decoder
75 - TechSmith Screen Codec 2 decoder
76 - AAC encoding via libfdk-aac
77 - Microsoft Expression Encoder Screen decoder
78 - RTMPS protocol support
79 - RTMPTS protocol support
80 - JPEG 2000 encoding support through OpenJPEG
81 - G.723.1 demuxer and decoder
82 - RTMPE protocol support
83 - RTMPTE protocol support
84 - Canopus Lossless Codec decoder
85 - avconv -shortest option is now per-output file,
86 -pass and -passlogfile are now per-output stream
88 - Microsoft Screen 2 decoder
89 - RTP depacketization of JPEG
90 - Smooth Streaming live segmenter muxer
91 - RTP packetization of JPEG
92 - Opus decoder and encoder using libopus
93 - remove -same_quant, it hasn't worked for years
94 - support for building with MSVC
105 - Automatic thread count based on detection number of (available) CPU cores
106 - Deprecate libpostproc. If desired, the switch --enable-postproc will
107 enable it but it may be removed in a later Libav release.
108 - rv34: frame-level multi-threading
109 - optimized iMDCT transform on x86 using SSE for for mpegaudiodec
115 - Flash Screen Video 2 decoder
116 - ffplay/ffprobe/ffserver renamed to avplay/avprobe/avserver
117 - ffmpeg deprecated, added avconv, which is almost the same for now, except
118 for a few incompatible changes in the options, which will hopefully make them
119 easier to use. The changes are:
120 * The options placement is now strictly enforced! While in theory the
121 options for ffmpeg should be given in [input options] -i INPUT [output
122 options] OUTPUT order, in practice it was possible to give output options
123 before the -i and it mostly worked. Except when it didn't - the behavior was
124 a bit inconsistent. In avconv, it is not possible to mix input and output
125 options. All non-global options are reset after an input or output filename.
126 * All per-file options are now truly per-file - they apply only to the next
127 input or output file and specifying different values for different files
128 will now work properly (notably -ss and -t options).
129 * All per-stream options are now truly per-stream - it is possible to
130 specify which stream(s) should a given option apply to. See the Stream
131 specifiers section in the avconv manual for details.
132 * In ffmpeg some options (like -newvideo/-newaudio/...) are irregular in the
133 sense that they're specified after the output filename instead of before,
134 like all other options. In avconv this irregularity is removed, all options
135 apply to the next input or output file.
136 * -newvideo/-newaudio/-newsubtitle options were removed. Not only were they
137 irregular and highly confusing, they were also redundant. In avconv the -map
138 option will create new streams in the output file and map input streams to
139 them. E.g. avconv -i INPUT -map 0 OUTPUT will create an output stream for
140 each stream in the first input file.
141 * The -map option now has slightly different and more powerful syntax:
142 + Colons (':') are used to separate file index/stream type/stream index
143 instead of dots. Comma (',') is used to separate the sync stream instead
144 of colon.. This is done for consistency with other options.
145 + It's possible to specify stream type. E.g. -map 0:a:2 creates an
146 output stream from the third input audio stream.
147 + Omitting the stream index now maps all the streams of the given type,
148 not just the first. E.g. -map 0:s creates output streams for all the
149 subtitle streams in the first input file.
150 + Since -map can now match multiple streams, negative mappings were
151 introduced. Negative mappings disable some streams from an already
152 defined map. E.g. '-map 0 -map -0:a:1' means 'create output streams for
153 all the stream in the first input file, except for the second audio
155 * There is a new option -c (or -codec) for choosing the decoder/encoder to
156 use, which allows to precisely specify target stream(s) consistently with
157 other options. E.g. -c:v lib264 sets the codec for all video streams, -c:a:0
158 libvorbis sets the codec for the first audio stream and -c copy copies all
159 the streams without reencoding. Old -vcodec/-acodec/-scodec options are now
161 * It is now possible to precisely specify which stream should an AVOption
162 apply to. E.g. -b:v:0 2M sets the bitrate for the first video stream, while
163 -b:a 128k sets the bitrate for all audio streams. Note that the old -ab 128k
164 syntax is deprecated and will stop working soon.
165 * -map_chapters now takes only an input file index and applies to the next
166 output file. This is consistent with how all the other options work.
167 * -map_metadata now takes only an input metadata specifier and applies to
168 the next output file. Output metadata specifier is now part of the option
169 name, similarly to the AVOptions/map/codec feature above.
170 * -metadata can now be used to set metadata on streams and chapters, e.g.
171 -metadata:s:1 language=eng sets the language of the first stream to 'eng'.
172 This made -vlang/-alang/-slang options redundant, so they were removed.
173 * -qscale option now uses stream specifiers and applies to all streams, not
174 just video. I.e. plain -qscale number would now apply to all streams. To get
175 the old behavior, use -qscale:v. Also there is now a shortcut -q for -qscale
176 and -aq is now an alias for -q:a.
177 * -vbsf/-absf/-sbsf options were removed and replaced by a -bsf option which
178 uses stream specifiers. Use -bsf:v/a/s instead of the old options.
179 * -itsscale option now uses stream specifiers, so its argument is only the
181 * -intra option was removed, use -g 0 for the same effect.
182 * -psnr option was removed, use -flags +psnr for the same effect.
183 * -vf option is now an alias to the new -filter option, which uses stream specifiers.
184 * -vframes/-aframes/-dframes options are now aliases to the new -frames option.
185 * -vtag/-atag/-stag options are now aliases to the new -tag option.
187 - Windows Media Image decoder
191 - libcdio-paranoia input device for audio CD grabbing
193 - Apple ProRes decoder
194 - CELT in Ogg demuxing
195 - VC-1 interlaced decoding
196 - lut, lutrgb, and lutyuv filters
199 - Speex encoding via libspeex
200 - 4:2:2 H.264 decoding support
201 - 4:2:2 and 4:4:4 H.264 encoding with libx264
202 - Pulseaudio input device
203 - replacement Indeo 3 decoder
204 - TLS/SSL and HTTPS protocol support
205 - AVOptions API rewritten and documented
206 - most of CODEC_FLAG2_*, some CODEC_FLAG_* and many codec-specific fields in
207 AVCodecContext deprecated. Codec private options should be used instead.
208 - Properly working defaults in libx264 wrapper, support for native presets.
209 - Encrypted OMA files support
210 - Discworld II BMV decoding support
212 - OS X Video Decoder Acceleration (VDA) support
213 - CRI ADX audio format muxer and demuxer
214 - Playstation Portable PMP format demuxer
215 - PCM format support in OMA demuxer
217 - Dxtory capture format decoder
218 - v410 QuickTime uncompressed 4:4:4 10-bit encoder and decoder
220 - Simple segmenting muxer
227 - E-AC-3 audio encoder
228 - ac3enc: add channel coupling support
229 - floating-point sample format support for (E-)AC-3, DCA, AAC, Vorbis decoders
230 - H.264/MPEG frame-level multithreading
231 - av_metadata_* functions renamed to av_dict_* and moved to libavutil
232 - 4:4:4 H.264 decoding support
233 - 10-bit H.264 optimizations for x86
234 - bump libswscale for recently reported ABI break
239 - VP8 frame-level multithreading
240 - NEON optimizations for VP8
241 - removed a lot of deprecated API cruft
242 - FFT and IMDCT optimizations for AVX (Sandy Bridge) processors
244 - SMPTE 302M AES3 audio decoder
245 - ffmpeg no longer quits after the 'q' key is pressed; use 'ctrl+c' instead
246 - 9bit and 10bit per sample support in the H.264 decoder
251 - WebM support in Matroska de/muxer
252 - low overhead Ogg muxing
254 - VP8 de/encoding via libvpx
255 - Demuxer for On2's IVF format
256 - Pictor/PC Paint decoder
258 - libfaad2 wrapper removed
259 - DTS-ES extension (XCh) decoding support
261 - RTSP tunneling over HTTP
262 - RTP depacketization of SVQ3
263 - -strict inofficial replaced by -strict unofficial
264 - ffplay -exitonkeydown and -exitonmousedown options added
265 - native GSM / GSM MS decoder
266 - RTP depacketization of QDM2
267 - ANSI/ASCII art playback system
268 - Lego Mindstorms RSO de/muxer
269 - SubRip subtitle file muxer and demuxer
270 - Chinese AVS encoding via libxavs
271 - ffprobe -show_packets option added
272 - RTP packetization of Theora and Vorbis
273 - RTP depacketization of MP4A-LATM
274 - RTP packetization and depacketization of VP8
276 - Apple HTTP Live Streaming demuxer
279 - G.722 ADPCM audio encoder/decoder
282 - frei0r wrapper filter
283 - change crop filter syntax to width:height:x:y
284 - make the crop filter accept parametric expressions
285 - make ffprobe accept AVFormatContext options
288 - Demuxer for Leitch/Harris' VR native stream format (LXF)
289 - RTP depacketization of the X-QT QuickTime format
290 - SAP (Session Announcement Protocol, RFC 2974) muxer and demuxer
292 - ffmpeg -crop* options removed
293 - transpose filter added
294 - ffmpeg -force_key_frames option added
295 - demuxer for receiving raw rtp:// URLs without an SDP description
296 - single stream LATM/LOAS decoder
297 - setpts filter added
298 - Win64 support for optimized x86 assembly functions
299 - MJPEG/AVI1 to JPEG/JFIF bitstream filter
300 - ASS subtitle encoder and decoder
301 - IEC 61937 encapsulation for E-AC-3, TrueHD, DTS-HD (for HDMI passthrough)
302 - overlay filter added
303 - rename aspect filter to setdar, and pixelaspect to setsar
305 - Mobotix .mxg demuxer
306 - frei0r source added
307 - hqdn3d filter added
308 - RTP depacketization of QCELP
310 - gradfun filter added
312 - replace the ocv_smooth filter with a more generic ocv filter
313 - Windows Televison (WTV) demuxer
314 - FFmpeg metadata format muxer and demuxer
315 - SubRip (srt) subtitle decoder
316 - floating-point AC-3 encoder added
318 - ffmpeg -copytb option added
320 - Wing Commander IV movies decoder added
322 - Bink version 'b' audio and video decoder
323 - Bitmap Brothers JV playback system
324 - Apple HTTP Live Streaming protocol handler
325 - sndio support for playback and record
326 - Linux framebuffer input device added
327 - Chronomaster DFA decoder
328 - Mobotix MxPEG decoder
329 - AAC encoding via libvo-aacenc
330 - AMR-WB encoding via libvo-amrwbenc
332 - fieldorder video filter added
337 - PB-frame decoding for H.263
338 - deprecated vhook subsystem removed
339 - deprecated old scaler removed
341 - Alpha channel scaler
343 - RTP packetization of H.263
344 - RTP packetization of AMR
345 - RTP depacketization of Vorbis
346 - CorePNG decoding support
347 - Cook multichannel decoding support
348 - introduced avlanguage helpers in libavformat
349 - 8088flex TMV demuxer and decoder
350 - per-stream language-tags extraction in asfdec
351 - V210 decoder and encoder
352 - remaining GPL parts in AC-3 decoder converted to LGPL
354 - SoX native format muxer and demuxer
355 - AMR-NB decoding/encoding, AMR-WB decoding via OpenCORE libraries
357 - Electronic Arts Madcow decoder
358 - DivX (XSUB) subtitle encoder
359 - nonfree libamr support for AMR-NB/WB decoding/encoding removed
360 - experimental AAC encoder
361 - RTP depacketization of ASF and RTSP from WMS servers
362 - RTMP support in libavformat
363 - noX handling for OPT_BOOL X options
365 - IEC-61937 compatible Muxer
367 - Bluray (PGS) subtitle decoder
368 - LPCM support in MPEG-TS (HDMV RID as found on Blu-ray disks)
370 - Core Audio Format demuxer
372 - MD STUDIO audio demuxer
373 - RF64 support in WAV demuxer
374 - MPEG-4 Audio Lossless Coding (ALS) decoder
375 - -formats option split into -formats, -codecs, -bsfs, and -protocols
377 - CDG demuxer and decoder
379 - Auravision Aura 1 and 2 decoders
380 - Deluxe Paint Animation playback system
382 - Adobe Filmstrip muxer and demuxer
383 - RTP depacketization of H.263
384 - Bink demuxer and audio/video decoders
385 - enable symbol versioning by default for linkers that support it
386 - IFF PBM/ILBM bitmap decoder
389 - RTP depacketization of AMR
395 - Kega Game Video (KGV1) decoder
396 - VorbisComment writing for FLAC, Ogg FLAC and Ogg Speex files
397 - RTP depacketization of Theora
398 - HTTP Digest authentication
399 - RTMP/RTMPT/RTMPS/RTMPE/RTMPTE protocol support via librtmp
400 - Psygnosis YOP demuxer and video decoder
401 - spectral extension support in the E-AC-3 decoder
402 - unsharp video filter
403 - RTP hinting in the mov/3gp/mp4 muxer
404 - Dirac in Ogg demuxing
405 - seek to keyframes in Ogg
406 - 4:2:2 and 4:4:4 Theora decoding
407 - 35% faster VP3/Theora decoding
408 - faster AAC decoding
409 - faster H.264 decoding
410 - RealAudio 1.0 (14.4K) encoder
415 - DV50 AKA DVCPRO50 encoder, decoder, muxer and demuxer
416 - TechSmith Camtasia (TSCC) video decoder
417 - IBM Ultimotion (ULTI) video decoder
418 - Sierra Online audio file demuxer and decoder
419 - Apple QuickDraw (qdrw) video decoder
420 - Creative ADPCM audio decoder (16 bits as well as 8 bits schemes)
421 - Electronic Arts Multimedia (WVE/UV2/etc.) file demuxer
422 - Miro VideoXL (VIXL) video decoder
423 - H.261 video encoder
425 - Nullsoft Video (NSV) file demuxer
426 - Shorten audio decoder
428 - Apple Lossless Audio Codec (ALAC) decoder
429 - Winnov WNV1 video decoder
430 - Autodesk Animator Studio Codec (AASC) decoder
431 - Indeo 2 video decoder
432 - Fraps FPS1 video decoder
433 - Snow video encoder/decoder
434 - Sonic audio encoder/decoder
435 - Vorbis audio decoder
436 - Macromedia ADPCM decoder
437 - Duck TrueMotion 2 video decoder
438 - support for decoding FLX and DTA extensions in FLIC files
439 - H.264 custom quantization matrices support
440 - ffserver fixed, it should now be usable again
442 - Real Cooker audio decoder
443 - TrueSpeech audio decoder
444 - WMA2 audio decoder fixed, now all files should play correctly
445 - RealAudio 14.4 and 28.8 decoders fixed
447 - build system improvements
448 - tabs and trailing whitespace removed from the codebase
449 - CamStudio video decoder
450 - AIFF/AIFF-C audio format, encoding and decoding
451 - ADTS AAC file reading and writing
452 - Creative VOC file reading and writing
453 - American Laser Games multimedia (*.mm) playback system
454 - Zip Motion Blocks Video decoder
455 - improved Theora/VP3 decoder
456 - True Audio (TTA) decoder
457 - AVS demuxer and video decoder
459 - Smacker demuxer and decoder
460 - NuppelVideo/MythTV demuxer and RTjpeg decoder
462 - MPEG-2 intra VLC support
463 - MPEG-2 4:2:2 encoder
464 - Flash Screen Video decoder
466 - Chinese AVS decoder
469 - VC-1/WMV3/WMV9 video decoder
472 - VMware video decoder
475 - WavPack lossless audio decoder
476 - Targa (.TGA) picture decoder
477 - Vorbis audio encoder
478 - Delphine Software .cin demuxer/audio and video decoder
479 - Tiertex .seq demuxer/video decoder
481 - TIFF picture encoder and decoder
482 - GIF picture decoder
483 - Intel Music Coder decoder
484 - Zip Motion Blocks Video encoder
486 - Flash Screen Video encoder
487 - Theora encoding via libtheora
490 - GSM-MS encoder and decoder
492 - DXA demuxer and decoder
494 - Gamecube movie (.THP) playback system
495 - Blackfin optimizations
496 - Interplay C93 demuxer and video decoder
497 - Bethsoft VID demuxer and video decoder
500 - V.Flash PTX decoder
501 - RoQ muxer, RoQ audio encoder
502 - Renderware TXD demuxer and decoder
503 - extern C declarations for C++ removed from headers
504 - sws_flags command line option
508 - OS/2 support removed and restored again
511 - additional SPARC (VIS) optimizations
513 - slice-based parallel H.264 decoding
514 - Monkey's Audio demuxer and decoder
515 - AMV audio and video decoder
517 - H.264 PAFF decoding
518 - Nellymoser ASAO decoder
519 - Beam Software SIFF demuxer and decoder
520 - libvorbis Vorbis decoding removed in favor of native decoder
521 - IntraX8 (J-Frame) subdecoder for WMV2 and VC-1
522 - Ogg (Theora, Vorbis and FLAC) muxer
523 - The "device" muxers and demuxers are now in a new libavdevice library
524 - PC Paintbrush PCX decoder
525 - Sun Rasterfile decoder
526 - TechnoTrend PVA demuxer
527 - Linux Media Labs MPEG-4 (LMLM4) demuxer
528 - AVM2 (Flash 9) SWF muxer
529 - QT variant of IMA ADPCM encoder
531 - iPod/iPhone compatible mp4 muxer
533 - MSN TCP Webcam stream demuxer
534 - RL2 demuxer / decoder
537 - non-recursive Makefiles
539 - MAXIS EA XA (.xa) demuxer / decoder
543 - Electronic Arts CMV decoder
544 - Motion Pixels Video decoder
545 - Motion Pixels MVI demuxer
546 - removed animated GIF decoder/demuxer
547 - D-Cinema audio muxer
548 - Electronic Arts TGV decoder
549 - Apple Lossless Audio Codec (ALAC) encoder
551 - floating point PCM encoder/decoder
553 - DV100 AKA DVCPRO HD decoder and demuxer
554 - E-AC-3 support added to AC-3 decoder
555 - Nellymoser ASAO encoder
556 - ASS and SSA demuxer and muxer
557 - liba52 wrapper removed
558 - SVQ3 watermark decoding support
559 - Speex decoding via libspeex
560 - Electronic Arts TGQ decoder
562 - QCELP / PureVoice decoder
564 - hybrid WavPack support
565 - R3D REDCODE demuxer
566 - ALSA support for playback and record
567 - Electronic Arts TQI decoder
568 - OpenJPEG based JPEG 2000 decoder
569 - NC (NC4600) camera file demuxer
570 - Gopher client support
572 - generic metadata API
577 - DV encoder, DV muxer
578 - Microsoft RLE video decoder
579 - Microsoft Video-1 decoder
580 - Apple Animation (RLE) decoder
581 - Apple Graphics (SMC) decoder
582 - Apple Video (RPZA) decoder
584 - Sega FILM (CPK) file demuxer
585 - Westwood multimedia support (VQA & AUD files)
586 - Id Quake II CIN playback support
588 - FLIC playback support
589 - RealVideo 2.0 (RV20) decoder
590 - Duck TrueMotion v1 (DUCK) video decoder
591 - Sierra VMD demuxer and video decoder
592 - MSZH and ZLIB decoder support
596 - rate distortion optimal cbp support
597 - rate distorted optimal ac prediction for MPEG-4
598 - rate distorted optimal lambda->qp support
599 - AAC encoding with libfaac
600 - Sunplus JPEG codec (SP5X) support
601 - use Lagrange multipler instead of QP for ratecontrol
602 - Theora/VP3 decoding support
603 - XA and ADX ADPCM codecs
604 - export MPEG-2 active display area / pan scan
605 - Add support for configuring with IBM XLC
606 - floating point AAN DCT
607 - initial support for zygo video (not complete)
609 - new audio/video parser API
611 - av_read_frame() and av_seek_frame() support
612 - missing last frame fixes
613 - seek by mouse in ffplay
614 - noise reduction of DCT coefficients
615 - H.263 OBMC & 4MV support
616 - H.263 alternative inter vlc support
618 - H.263 slice structured mode
619 - interlaced DCT support for MPEG-2 encoding
620 - stuffing to stay above min_bitrate
621 - MB type & QP visualization
622 - frame stepping for ffplay
623 - interlaced motion estimation
624 - alternate scantable support
625 - SVCD scan offset support
628 - quantizer noise shaping
629 - G.726 ADPCM audio codec
631 - multithreaded/SMP motion estimation
632 - multithreaded/SMP encoding for MPEG-1/MPEG-2/MPEG-4/H.263
633 - multithreaded/SMP decoding for MPEG-2
635 - Metrowerks CodeWarrior suppport
636 - H.263+ custom pcf support
637 - nicer output for 'ffmpeg -formats'
639 - SGI image format, encoding and decoding
640 - H.264 loop filter support
641 - H.264 CABAC support
642 - nicer looking arrows for the motion vector visualization
643 - improved VCD support
644 - audio timestamp drift compensation
645 - MPEG-2 YUV 422/444 support
646 - polyphase kaiser windowed sinc and blackman nuttall windowed sinc audio resample
647 - better image scaling
649 - correctly interleave packets during encoding
650 - VIS optimized motion compensation
651 - intra_dc_precision>0 encoding support
652 - support reuse of motion vectors/MB types/field select values of the source video
653 - more accurate deblock filter
655 - many optimizations and bugfixes
656 - FunCom ISS audio file demuxer and according ADPCM decoding
661 - MPEG-2 video encoding (Michael)
662 - Id RoQ playback subsystem (Mike Melanson and Tim Ferguson)
663 - Wing Commander III Movie (.mve) file playback subsystem (Mike Melanson
665 - Xan DPCM audio decoder (Mario Brito)
666 - Interplay MVE playback subsystem (Mike Melanson)
667 - Duck DK3 and DK4 ADPCM audio decoders (Mike Melanson)
672 - RealAudio 1.0 (14_4) and 2.0 (28_8) native decoders. Author unknown, code from mplayerhq
673 (originally from public domain player for Amiga at http://www.honeypot.net/audio)
674 - current version now also compiles with older GCC (Fabrice)
675 - 4X multimedia playback system including 4xm file demuxer (Mike
676 Melanson), and 4X video and audio codecs (Michael)
677 - Creative YUV (CYUV) decoder (Mike Melanson)
678 - FFV1 codec (our very simple lossless intra only codec, compresses much better
679 than HuffYUV) (Michael)
680 - ASV1 (Asus), H.264, Intel indeo3 codecs have been added (various)
681 - tiny PNG encoder and decoder, tiny GIF decoder, PAM decoder (PPM with
682 alpha support), JPEG YUV colorspace support. (Fabrice Bellard)
683 - ffplay has been replaced with a newer version which uses SDL (optionally)
684 for multiplatform support (Fabrice)
685 - Sorenson Version 3 codec (SVQ3) support has been added (decoding only) - donated
687 - AMR format has been added (Johannes Carlsson)
688 - 3GP support has been added (Johannes Carlsson)
689 - VP3 codec has been added (Mike Melanson)
690 - more MPEG-1/2 fixes
691 - better multiplatform support, MS Visual Studio fixes (various)
692 - AltiVec optimizations (Magnus Damn and others)
693 - SH4 processor support has been added (BERO)
694 - new public interfaces (avcodec_get_pix_fmt) (Roman Shaposhnick)
695 - VOB streaming support (Brian Foley)
696 - better MP3 autodetection (Andriy Rysin)
697 - qpel encoding (Michael)
698 - 4mv+b frames encoding finally fixed (Michael)
699 - chroma ME (Michael)
700 - 5 comparison functions for ME (Michael)
701 - B-frame encoding speedup (Michael)
702 - WMV2 codec (unfinished - Michael)
703 - user specified diamond size for EPZS (Michael)
704 - Playstation STR playback subsystem, still experimental (Mike and Michael)
705 - ASV2 codec (Michael)
706 - CLJR decoder (Alex)
708 .. And lots more new enhancements and fixes.
713 - completely new integer only MPEG audio layer 1/2/3 decoder rewritten
715 - Recoded DCT and motion vector search with gcc (no longer depends on nasm)
716 - fix quantization bug in AC3 encoder
717 - added PCM codecs and format. Corrected WAV/AVI/ASF PCM issues
718 - added prototype ffplay program
719 - added GOB header parsing on H.263/H.263+ decoder (Juanjo)
720 - bug fix on MCBPC tables of H.263 (Juanjo)
721 - bug fix on DC coefficients of H.263 (Juanjo)
722 - added Advanced Prediction Mode on H.263/H.263+ decoder (Juanjo)
723 - now we can decode H.263 streams found in QuickTime files (Juanjo)
724 - now we can decode H.263 streams found in VIVO v1 files(Juanjo)
725 - preliminary RTP "friendly" mode for H.263/H.263+ coding. (Juanjo)
726 - added GOB header for H.263/H.263+ coding on RTP mode (Juanjo)
727 - now H.263 picture size is returned on the first decoded frame (Juanjo)
728 - added first regression tests
729 - added MPEG-2 TS demuxer
730 - new demux API for libav
731 - more accurate and faster IDCT (Michael)
732 - faster and entropy-controlled motion search (Michael)
733 - two pass video encoding (Michael)
734 - new video rate control (Michael)
735 - added MSMPEG4V1, MSMPEGV2 and WMV1 support (Michael)
736 - great performance improvement of video encoders and decoders (Michael)
737 - new and faster bit readers and vlc parsers (Michael)
738 - high quality encoding mode: tries all macroblock/VLC types (Michael)
739 - added DV video decoder
740 - preliminary RTP/RTSP support in ffserver and libavformat
741 - H.263+ AIC decoding/encoding support (Juanjo)
742 - VCD MPEG-PS mode (Juanjo)
743 - PSNR stuff (Juanjo)
744 - simple stats output (Juanjo)
745 - 16-bit and 15-bit RGB/BGR/GBR support (Bisqwit)
750 - some header fixes (Zdenek Kabelac <kabi at informatics.muni.cz>)
751 - many MMX optimizations (Nick Kurshev <nickols_k at mail.ru>)
752 - added configure system (actually a small shell script)
753 - added MPEG audio layer 1/2/3 decoding using LGPL'ed mpglib by
754 Michael Hipp (temporary solution - waiting for integer only
756 - fixed VIDIOCSYNC interrupt
757 - added Intel H.263 decoding support ('I263' AVI fourCC)
758 - added Real Video 1.0 decoding (needs further testing)
759 - simplified image formats again. Added PGM format (=grey
760 pgm). Renamed old PGM to PGMYUV.
761 - fixed msmpeg4 slice issues (tell me if you still find problems)
762 - fixed OpenDivX bugs with newer versions (added VOL header decoding)
763 - added support for MPlayer interface
764 - added macroblock skip optimization
765 - added MJPEG decoder
766 - added mmx/mmxext IDCT from libmpeg2
767 - added pgmyuvpipe, ppm, and ppm_pipe formats (original patch by Celer
768 <celer at shell.scrypt.net>)
769 - added pixel format conversion layer (e.g. for MJPEG or PPM)
770 - added deinterlacing option
772 - MPEG-4 vol header fixes (Jonathan Marsden <snmjbm at pacbell.net>)
773 - ARM optimizations (Lionel Ulmer <lionel.ulmer at free.fr>).
774 - Windows porting of file converter
775 - added MJPEG raw format (input/ouput)
776 - added JPEG image format support (input/output)
781 - fixed some std header definitions (Bjorn Lindgren
782 <bjorn.e.lindgren at telia.com>).
783 - added MPEG demuxer (MPEG-1 and 2 compatible).
785 - added prototype RM demuxer
786 - added AC3 decoding (done with libac3 by Aaron Holtzman)
787 - added decoding codec parameter guessing (.e.g. for MPEG, because the
788 header does not include them)
789 - fixed header generation in MPEG-1, AVI and ASF muxer: wmplayer can now
790 play them (only tested video)
791 - fixed H.263 white bug
792 - fixed phase rounding in img resample filter
793 - add MMX code for polyphase img resample filter
794 - added CPU autodetection
795 - added generic title/author/copyright/comment string handling (ASF and RM
797 - added SWF demux to extract MP3 track (not usable yet because no MP3
799 - added fractional frame rate support
800 - codecs are no longer searched by read_header() (should fix ffserver
806 - BGR24 patch (initial patch by Jeroen Vreeken <pe1rxq at amsat.org>)
807 - fixed raw yuv output
808 - added motion rounding support in MPEG-4
809 - fixed motion bug rounding in MSMPEG4
810 - added B-frame handling in video core
811 - added full MPEG-1 decoding support
812 - added partial (frame only) MPEG-2 support
813 - changed the FOURCC code for H.263 to "U263" to be able to see the
814 +AVI/H.263 file with the UB Video H.263+ decoder. MPlayer works with
815 this +codec ;) (JuanJo).
816 - Halfpel motion estimation after MB type selection (JuanJo)
817 - added pgm and .Y.U.V output format
818 - suppressed 'img:' protocol. Simply use: /tmp/test%d.[pgm|Y] as input or
820 - added pgmpipe I/O format (original patch from Martin Aumueller
821 <lists at reserv.at>, but changed completely since we use a format
822 instead of a protocol)
827 - added H.263/MPEG-4/MSMPEG4 decoding support. MPEG-4 decoding support
828 (for OpenDivX) is almost complete: 8x8 MVs and rounding are
829 missing. MSMPEG4 support is complete.
830 - added prototype MPEG-1 decoder. Only I- and P-frames handled yet (it
831 can decode ffmpeg MPEGs :-)).
832 - added libavcodec API documentation (see apiexample.c).
833 - fixed image polyphase bug (the bottom of some images could be
835 - added support for non clipped motion vectors (decoding only)
836 and image sizes non-multiple of 16
837 - added support for AC prediction (decoding only)
838 - added file overwrite confirmation (can be disabled with -y)
839 - added custom size picture to H.263 using H.263+ (Juanjo)
844 - added MSMPEG4 (aka DivX) compatible encoder. Changed default codec
845 of AVI and ASF to DIV3.
846 - added -me option to set motion estimation method
847 (default=log). suppressed redundant -hq option.
848 - added options -acodec and -vcodec to force a given codec (useful for
851 - improved dct_quantize speed
852 - factorized some motion estimation code
857 - removing grab code from ffserver and moved it to ffmpeg. Added
858 multistream support to ffmpeg.
859 - added timeshifting support for live feeds (option ?date=xxx in the
861 - added high quality image resize code with polyphase filter (need
862 mmx/see optimization). Enable multiple image size support in ffserver.
863 - added multi live feed support in ffserver
864 - suppressed master feature from ffserver (it should be done with an
865 external program which opens the .ffm url and writes it to another
867 - added preliminary support for video stream parsing (WAV and AVI half
868 done). Added proper support for audio/video file conversion in
870 - added preliminary support for video file sending from ffserver
871 - redesigning I/O subsystem: now using URL based input and output
873 - added WAV format support
874 - added "tty user interface" to ffmpeg to stop grabbing gracefully
875 - added MMX/SSE optimizations to SAD (Sums of Absolutes Differences)
876 (Juan J. Sierralta P. a.k.a. "Juanjo" <juanjo at atmlab.utfsm.cl>)
877 - added MMX DCT from mpeg2_movie 1.5 (Juanjo)
878 - added new motion estimation algorithms, log and phods (Juanjo)
879 - changed directories: libav for format handling, libavcodec for
885 - added stereo in MPEG audio encoder
890 - added 'high quality' mode which use motion vectors. It can be used in
891 real time at low resolution.
892 - fixed rounding problems which caused quality problems at high
893 bitrates and large GOP size
896 version 0.3.2: small fixes
902 version 0.3.1: added avi/divx support
905 - added MPEG-4 codec compatible with OpenDivX. It is based on the H.263 codec
906 - added sound for flash format (not tested)
909 version 0.3: initial public release