1 Entries are sorted chronologically from oldest to youngest within each release,
2 releases are sorted from youngest to oldest.
5 - av_basename and av_dirname
6 - adobe and limelight publisher authentication in RTMP
10 - ashowinfo audio filter
11 - 24-bit FLAC encoding
13 - deprecated the avconv -vol option. the volume filter is to be used instead.
14 - multi-channel ALAC encoding up to 7.1
15 - TAK demuxer, parser, and decoder
16 - adaptive frame-level multithreading for H.264
20 - metadata (INFO tag) support in WAV muxer
21 - support for building DLLs using MSVC
22 - remove avserver daemon mode
23 - support building on the Plan 9 operating system
24 - ffv1: support version 1.3
29 - XWD encoder and decoder
30 - Support for fragmentation in the mov/mp4 muxer
31 - ISMV (Smooth Streaming) muxer
32 - CDXL demuxer and decoder
33 - Apple ProRes encoder
34 - Sun Rasterfile Encoder
36 - ID3v2 attached pictures reading and writing
37 - WMA Lossless decoder
39 - RealAudio Lossless decoder
41 - drop support for avconv without libavfilter
42 - add libavresample audio conversion library
43 - audio filters support in libavfilter and avconv
47 - avprobe output is now standard INI or JSON. The old format can still
50 - channelsplit audio filter
51 - RTMPT protocol support
52 - iLBC encoding/decoding via libilbc
53 - Microsoft Screen 1 decoder
55 - audio channel mapping filter
56 - Microsoft ATC Screen decoder
58 - TechSmith Screen Codec 2 decoder
59 - AAC encoding via libfdk-aac
60 - Microsoft Expression Encoder Screen decoder
61 - RTMPS protocol support
62 - RTMPTS protocol support
63 - JPEG 2000 encoding support through OpenJPEG
64 - G.723.1 demuxer and decoder
65 - RTMPE protocol support
66 - RTMPTE protocol support
67 - Canopus Lossless Codec decoder
68 - avconv -shortest option is now per-output file,
69 -pass and -passlogfile are now per-output stream
71 - Microsoft Screen 2 decoder
72 - RTP depacketization of JPEG
73 - Smooth Streaming live segmenter muxer
74 - RTP packetization of JPEG
75 - Opus decoder and encoder using libopus
76 - remove -same_quant, it hasn't worked for years
77 - support for building with MSVC
88 - Automatic thread count based on detection number of (available) CPU cores
89 - Deprecate libpostproc. If desired, the switch --enable-postproc will
90 enable it but it may be removed in a later Libav release.
91 - rv34: frame-level multi-threading
92 - optimized iMDCT transform on x86 using SSE for for mpegaudiodec
98 - Flash Screen Video 2 decoder
99 - ffplay/ffprobe/ffserver renamed to avplay/avprobe/avserver
100 - ffmpeg deprecated, added avconv, which is almost the same for now, except
101 for a few incompatible changes in the options, which will hopefully make them
102 easier to use. The changes are:
103 * The options placement is now strictly enforced! While in theory the
104 options for ffmpeg should be given in [input options] -i INPUT [output
105 options] OUTPUT order, in practice it was possible to give output options
106 before the -i and it mostly worked. Except when it didn't - the behavior was
107 a bit inconsistent. In avconv, it is not possible to mix input and output
108 options. All non-global options are reset after an input or output filename.
109 * All per-file options are now truly per-file - they apply only to the next
110 input or output file and specifying different values for different files
111 will now work properly (notably -ss and -t options).
112 * All per-stream options are now truly per-stream - it is possible to
113 specify which stream(s) should a given option apply to. See the Stream
114 specifiers section in the avconv manual for details.
115 * In ffmpeg some options (like -newvideo/-newaudio/...) are irregular in the
116 sense that they're specified after the output filename instead of before,
117 like all other options. In avconv this irregularity is removed, all options
118 apply to the next input or output file.
119 * -newvideo/-newaudio/-newsubtitle options were removed. Not only were they
120 irregular and highly confusing, they were also redundant. In avconv the -map
121 option will create new streams in the output file and map input streams to
122 them. E.g. avconv -i INPUT -map 0 OUTPUT will create an output stream for
123 each stream in the first input file.
124 * The -map option now has slightly different and more powerful syntax:
125 + Colons (':') are used to separate file index/stream type/stream index
126 instead of dots. Comma (',') is used to separate the sync stream instead
127 of colon.. This is done for consistency with other options.
128 + It's possible to specify stream type. E.g. -map 0:a:2 creates an
129 output stream from the third input audio stream.
130 + Omitting the stream index now maps all the streams of the given type,
131 not just the first. E.g. -map 0:s creates output streams for all the
132 subtitle streams in the first input file.
133 + Since -map can now match multiple streams, negative mappings were
134 introduced. Negative mappings disable some streams from an already
135 defined map. E.g. '-map 0 -map -0:a:1' means 'create output streams for
136 all the stream in the first input file, except for the second audio
138 * There is a new option -c (or -codec) for choosing the decoder/encoder to
139 use, which allows to precisely specify target stream(s) consistently with
140 other options. E.g. -c:v lib264 sets the codec for all video streams, -c:a:0
141 libvorbis sets the codec for the first audio stream and -c copy copies all
142 the streams without reencoding. Old -vcodec/-acodec/-scodec options are now
144 * It is now possible to precisely specify which stream should an AVOption
145 apply to. E.g. -b:v:0 2M sets the bitrate for the first video stream, while
146 -b:a 128k sets the bitrate for all audio streams. Note that the old -ab 128k
147 syntax is deprecated and will stop working soon.
148 * -map_chapters now takes only an input file index and applies to the next
149 output file. This is consistent with how all the other options work.
150 * -map_metadata now takes only an input metadata specifier and applies to
151 the next output file. Output metadata specifier is now part of the option
152 name, similarly to the AVOptions/map/codec feature above.
153 * -metadata can now be used to set metadata on streams and chapters, e.g.
154 -metadata:s:1 language=eng sets the language of the first stream to 'eng'.
155 This made -vlang/-alang/-slang options redundant, so they were removed.
156 * -qscale option now uses stream specifiers and applies to all streams, not
157 just video. I.e. plain -qscale number would now apply to all streams. To get
158 the old behavior, use -qscale:v. Also there is now a shortcut -q for -qscale
159 and -aq is now an alias for -q:a.
160 * -vbsf/-absf/-sbsf options were removed and replaced by a -bsf option which
161 uses stream specifiers. Use -bsf:v/a/s instead of the old options.
162 * -itsscale option now uses stream specifiers, so its argument is only the
164 * -intra option was removed, use -g 0 for the same effect.
165 * -psnr option was removed, use -flags +psnr for the same effect.
166 * -vf option is now an alias to the new -filter option, which uses stream specifiers.
167 * -vframes/-aframes/-dframes options are now aliases to the new -frames option.
168 * -vtag/-atag/-stag options are now aliases to the new -tag option.
170 - Windows Media Image decoder
174 - libcdio-paranoia input device for audio CD grabbing
176 - Apple ProRes decoder
177 - CELT in Ogg demuxing
178 - VC-1 interlaced decoding
179 - lut, lutrgb, and lutyuv filters
182 - Speex encoding via libspeex
183 - 4:2:2 H.264 decoding support
184 - 4:2:2 and 4:4:4 H.264 encoding with libx264
185 - Pulseaudio input device
186 - replacement Indeo 3 decoder
187 - TLS/SSL and HTTPS protocol support
188 - AVOptions API rewritten and documented
189 - most of CODEC_FLAG2_*, some CODEC_FLAG_* and many codec-specific fields in
190 AVCodecContext deprecated. Codec private options should be used instead.
191 - Properly working defaults in libx264 wrapper, support for native presets.
192 - Encrypted OMA files support
193 - Discworld II BMV decoding support
195 - OS X Video Decoder Acceleration (VDA) support
196 - CRI ADX audio format muxer and demuxer
197 - Playstation Portable PMP format demuxer
198 - PCM format support in OMA demuxer
200 - Dxtory capture format decoder
201 - v410 QuickTime uncompressed 4:4:4 10-bit encoder and decoder
203 - Simple segmenting muxer
210 - E-AC-3 audio encoder
211 - ac3enc: add channel coupling support
212 - floating-point sample format support for (E-)AC-3, DCA, AAC, Vorbis decoders
213 - H.264/MPEG frame-level multithreading
214 - av_metadata_* functions renamed to av_dict_* and moved to libavutil
215 - 4:4:4 H.264 decoding support
216 - 10-bit H.264 optimizations for x86
217 - bump libswscale for recently reported ABI break
222 - VP8 frame-level multithreading
223 - NEON optimizations for VP8
224 - removed a lot of deprecated API cruft
225 - FFT and IMDCT optimizations for AVX (Sandy Bridge) processors
227 - SMPTE 302M AES3 audio decoder
228 - ffmpeg no longer quits after the 'q' key is pressed; use 'ctrl+c' instead
229 - 9bit and 10bit per sample support in the H.264 decoder
234 - WebM support in Matroska de/muxer
235 - low overhead Ogg muxing
237 - VP8 de/encoding via libvpx
238 - Demuxer for On2's IVF format
239 - Pictor/PC Paint decoder
241 - libfaad2 wrapper removed
242 - DTS-ES extension (XCh) decoding support
244 - RTSP tunneling over HTTP
245 - RTP depacketization of SVQ3
246 - -strict inofficial replaced by -strict unofficial
247 - ffplay -exitonkeydown and -exitonmousedown options added
248 - native GSM / GSM MS decoder
249 - RTP depacketization of QDM2
250 - ANSI/ASCII art playback system
251 - Lego Mindstorms RSO de/muxer
252 - SubRip subtitle file muxer and demuxer
253 - Chinese AVS encoding via libxavs
254 - ffprobe -show_packets option added
255 - RTP packetization of Theora and Vorbis
256 - RTP depacketization of MP4A-LATM
257 - RTP packetization and depacketization of VP8
259 - Apple HTTP Live Streaming demuxer
262 - G.722 ADPCM audio encoder/decoder
265 - frei0r wrapper filter
266 - change crop filter syntax to width:height:x:y
267 - make the crop filter accept parametric expressions
268 - make ffprobe accept AVFormatContext options
271 - Demuxer for Leitch/Harris' VR native stream format (LXF)
272 - RTP depacketization of the X-QT QuickTime format
273 - SAP (Session Announcement Protocol, RFC 2974) muxer and demuxer
275 - ffmpeg -crop* options removed
276 - transpose filter added
277 - ffmpeg -force_key_frames option added
278 - demuxer for receiving raw rtp:// URLs without an SDP description
279 - single stream LATM/LOAS decoder
280 - setpts filter added
281 - Win64 support for optimized x86 assembly functions
282 - MJPEG/AVI1 to JPEG/JFIF bitstream filter
283 - ASS subtitle encoder and decoder
284 - IEC 61937 encapsulation for E-AC-3, TrueHD, DTS-HD (for HDMI passthrough)
285 - overlay filter added
286 - rename aspect filter to setdar, and pixelaspect to setsar
288 - Mobotix .mxg demuxer
289 - frei0r source added
290 - hqdn3d filter added
291 - RTP depacketization of QCELP
293 - gradfun filter added
295 - replace the ocv_smooth filter with a more generic ocv filter
296 - Windows Televison (WTV) demuxer
297 - FFmpeg metadata format muxer and demuxer
298 - SubRip (srt) subtitle decoder
299 - floating-point AC-3 encoder added
301 - ffmpeg -copytb option added
303 - Wing Commander IV movies decoder added
305 - Bink version 'b' audio and video decoder
306 - Bitmap Brothers JV playback system
307 - Apple HTTP Live Streaming protocol handler
308 - sndio support for playback and record
309 - Linux framebuffer input device added
310 - Chronomaster DFA decoder
311 - Mobotix MxPEG decoder
312 - AAC encoding via libvo-aacenc
313 - AMR-WB encoding via libvo-amrwbenc
315 - fieldorder video filter added
320 - PB-frame decoding for H.263
321 - deprecated vhook subsystem removed
322 - deprecated old scaler removed
324 - Alpha channel scaler
326 - RTP packetization of H.263
327 - RTP packetization of AMR
328 - RTP depacketization of Vorbis
329 - CorePNG decoding support
330 - Cook multichannel decoding support
331 - introduced avlanguage helpers in libavformat
332 - 8088flex TMV demuxer and decoder
333 - per-stream language-tags extraction in asfdec
334 - V210 decoder and encoder
335 - remaining GPL parts in AC-3 decoder converted to LGPL
337 - SoX native format muxer and demuxer
338 - AMR-NB decoding/encoding, AMR-WB decoding via OpenCORE libraries
340 - Electronic Arts Madcow decoder
341 - DivX (XSUB) subtitle encoder
342 - nonfree libamr support for AMR-NB/WB decoding/encoding removed
343 - experimental AAC encoder
344 - RTP depacketization of ASF and RTSP from WMS servers
345 - RTMP support in libavformat
346 - noX handling for OPT_BOOL X options
348 - IEC-61937 compatible Muxer
350 - Bluray (PGS) subtitle decoder
351 - LPCM support in MPEG-TS (HDMV RID as found on Blu-ray disks)
353 - Core Audio Format demuxer
355 - MD STUDIO audio demuxer
356 - RF64 support in WAV demuxer
357 - MPEG-4 Audio Lossless Coding (ALS) decoder
358 - -formats option split into -formats, -codecs, -bsfs, and -protocols
360 - CDG demuxer and decoder
362 - Auravision Aura 1 and 2 decoders
363 - Deluxe Paint Animation playback system
365 - Adobe Filmstrip muxer and demuxer
366 - RTP depacketization of H.263
367 - Bink demuxer and audio/video decoders
368 - enable symbol versioning by default for linkers that support it
369 - IFF PBM/ILBM bitmap decoder
372 - RTP depacketization of AMR
378 - Kega Game Video (KGV1) decoder
379 - VorbisComment writing for FLAC, Ogg FLAC and Ogg Speex files
380 - RTP depacketization of Theora
381 - HTTP Digest authentication
382 - RTMP/RTMPT/RTMPS/RTMPE/RTMPTE protocol support via librtmp
383 - Psygnosis YOP demuxer and video decoder
384 - spectral extension support in the E-AC-3 decoder
385 - unsharp video filter
386 - RTP hinting in the mov/3gp/mp4 muxer
387 - Dirac in Ogg demuxing
388 - seek to keyframes in Ogg
389 - 4:2:2 and 4:4:4 Theora decoding
390 - 35% faster VP3/Theora decoding
391 - faster AAC decoding
392 - faster H.264 decoding
393 - RealAudio 1.0 (14.4K) encoder
398 - DV50 AKA DVCPRO50 encoder, decoder, muxer and demuxer
399 - TechSmith Camtasia (TSCC) video decoder
400 - IBM Ultimotion (ULTI) video decoder
401 - Sierra Online audio file demuxer and decoder
402 - Apple QuickDraw (qdrw) video decoder
403 - Creative ADPCM audio decoder (16 bits as well as 8 bits schemes)
404 - Electronic Arts Multimedia (WVE/UV2/etc.) file demuxer
405 - Miro VideoXL (VIXL) video decoder
406 - H.261 video encoder
408 - Nullsoft Video (NSV) file demuxer
409 - Shorten audio decoder
411 - Apple Lossless Audio Codec (ALAC) decoder
412 - Winnov WNV1 video decoder
413 - Autodesk Animator Studio Codec (AASC) decoder
414 - Indeo 2 video decoder
415 - Fraps FPS1 video decoder
416 - Snow video encoder/decoder
417 - Sonic audio encoder/decoder
418 - Vorbis audio decoder
419 - Macromedia ADPCM decoder
420 - Duck TrueMotion 2 video decoder
421 - support for decoding FLX and DTA extensions in FLIC files
422 - H.264 custom quantization matrices support
423 - ffserver fixed, it should now be usable again
425 - Real Cooker audio decoder
426 - TrueSpeech audio decoder
427 - WMA2 audio decoder fixed, now all files should play correctly
428 - RealAudio 14.4 and 28.8 decoders fixed
430 - build system improvements
431 - tabs and trailing whitespace removed from the codebase
432 - CamStudio video decoder
433 - AIFF/AIFF-C audio format, encoding and decoding
434 - ADTS AAC file reading and writing
435 - Creative VOC file reading and writing
436 - American Laser Games multimedia (*.mm) playback system
437 - Zip Motion Blocks Video decoder
438 - improved Theora/VP3 decoder
439 - True Audio (TTA) decoder
440 - AVS demuxer and video decoder
442 - Smacker demuxer and decoder
443 - NuppelVideo/MythTV demuxer and RTjpeg decoder
445 - MPEG-2 intra VLC support
446 - MPEG-2 4:2:2 encoder
447 - Flash Screen Video decoder
449 - Chinese AVS decoder
452 - VC-1/WMV3/WMV9 video decoder
455 - VMware video decoder
458 - WavPack lossless audio decoder
459 - Targa (.TGA) picture decoder
460 - Vorbis audio encoder
461 - Delphine Software .cin demuxer/audio and video decoder
462 - Tiertex .seq demuxer/video decoder
464 - TIFF picture encoder and decoder
465 - GIF picture decoder
466 - Intel Music Coder decoder
467 - Zip Motion Blocks Video encoder
469 - Flash Screen Video encoder
470 - Theora encoding via libtheora
473 - GSM-MS encoder and decoder
475 - DXA demuxer and decoder
477 - Gamecube movie (.THP) playback system
478 - Blackfin optimizations
479 - Interplay C93 demuxer and video decoder
480 - Bethsoft VID demuxer and video decoder
483 - V.Flash PTX decoder
484 - RoQ muxer, RoQ audio encoder
485 - Renderware TXD demuxer and decoder
486 - extern C declarations for C++ removed from headers
487 - sws_flags command line option
491 - OS/2 support removed and restored again
494 - additional SPARC (VIS) optimizations
496 - slice-based parallel H.264 decoding
497 - Monkey's Audio demuxer and decoder
498 - AMV audio and video decoder
500 - H.264 PAFF decoding
501 - Nellymoser ASAO decoder
502 - Beam Software SIFF demuxer and decoder
503 - libvorbis Vorbis decoding removed in favor of native decoder
504 - IntraX8 (J-Frame) subdecoder for WMV2 and VC-1
505 - Ogg (Theora, Vorbis and FLAC) muxer
506 - The "device" muxers and demuxers are now in a new libavdevice library
507 - PC Paintbrush PCX decoder
508 - Sun Rasterfile decoder
509 - TechnoTrend PVA demuxer
510 - Linux Media Labs MPEG-4 (LMLM4) demuxer
511 - AVM2 (Flash 9) SWF muxer
512 - QT variant of IMA ADPCM encoder
514 - iPod/iPhone compatible mp4 muxer
516 - MSN TCP Webcam stream demuxer
517 - RL2 demuxer / decoder
520 - non-recursive Makefiles
522 - MAXIS EA XA (.xa) demuxer / decoder
526 - Electronic Arts CMV decoder
527 - Motion Pixels Video decoder
528 - Motion Pixels MVI demuxer
529 - removed animated GIF decoder/demuxer
530 - D-Cinema audio muxer
531 - Electronic Arts TGV decoder
532 - Apple Lossless Audio Codec (ALAC) encoder
534 - floating point PCM encoder/decoder
536 - DV100 AKA DVCPRO HD decoder and demuxer
537 - E-AC-3 support added to AC-3 decoder
538 - Nellymoser ASAO encoder
539 - ASS and SSA demuxer and muxer
540 - liba52 wrapper removed
541 - SVQ3 watermark decoding support
542 - Speex decoding via libspeex
543 - Electronic Arts TGQ decoder
545 - QCELP / PureVoice decoder
547 - hybrid WavPack support
548 - R3D REDCODE demuxer
549 - ALSA support for playback and record
550 - Electronic Arts TQI decoder
551 - OpenJPEG based JPEG 2000 decoder
552 - NC (NC4600) camera file demuxer
553 - Gopher client support
555 - generic metadata API
560 - DV encoder, DV muxer
561 - Microsoft RLE video decoder
562 - Microsoft Video-1 decoder
563 - Apple Animation (RLE) decoder
564 - Apple Graphics (SMC) decoder
565 - Apple Video (RPZA) decoder
567 - Sega FILM (CPK) file demuxer
568 - Westwood multimedia support (VQA & AUD files)
569 - Id Quake II CIN playback support
571 - FLIC playback support
572 - RealVideo 2.0 (RV20) decoder
573 - Duck TrueMotion v1 (DUCK) video decoder
574 - Sierra VMD demuxer and video decoder
575 - MSZH and ZLIB decoder support
579 - rate distortion optimal cbp support
580 - rate distorted optimal ac prediction for MPEG-4
581 - rate distorted optimal lambda->qp support
582 - AAC encoding with libfaac
583 - Sunplus JPEG codec (SP5X) support
584 - use Lagrange multipler instead of QP for ratecontrol
585 - Theora/VP3 decoding support
586 - XA and ADX ADPCM codecs
587 - export MPEG-2 active display area / pan scan
588 - Add support for configuring with IBM XLC
589 - floating point AAN DCT
590 - initial support for zygo video (not complete)
592 - new audio/video parser API
594 - av_read_frame() and av_seek_frame() support
595 - missing last frame fixes
596 - seek by mouse in ffplay
597 - noise reduction of DCT coefficients
598 - H.263 OBMC & 4MV support
599 - H.263 alternative inter vlc support
601 - H.263 slice structured mode
602 - interlaced DCT support for MPEG-2 encoding
603 - stuffing to stay above min_bitrate
604 - MB type & QP visualization
605 - frame stepping for ffplay
606 - interlaced motion estimation
607 - alternate scantable support
608 - SVCD scan offset support
611 - quantizer noise shaping
612 - G.726 ADPCM audio codec
614 - multithreaded/SMP motion estimation
615 - multithreaded/SMP encoding for MPEG-1/MPEG-2/MPEG-4/H.263
616 - multithreaded/SMP decoding for MPEG-2
618 - Metrowerks CodeWarrior suppport
619 - H.263+ custom pcf support
620 - nicer output for 'ffmpeg -formats'
622 - SGI image format, encoding and decoding
623 - H.264 loop filter support
624 - H.264 CABAC support
625 - nicer looking arrows for the motion vector visualization
626 - improved VCD support
627 - audio timestamp drift compensation
628 - MPEG-2 YUV 422/444 support
629 - polyphase kaiser windowed sinc and blackman nuttall windowed sinc audio resample
630 - better image scaling
632 - correctly interleave packets during encoding
633 - VIS optimized motion compensation
634 - intra_dc_precision>0 encoding support
635 - support reuse of motion vectors/MB types/field select values of the source video
636 - more accurate deblock filter
638 - many optimizations and bugfixes
639 - FunCom ISS audio file demuxer and according ADPCM decoding
644 - MPEG-2 video encoding (Michael)
645 - Id RoQ playback subsystem (Mike Melanson and Tim Ferguson)
646 - Wing Commander III Movie (.mve) file playback subsystem (Mike Melanson
648 - Xan DPCM audio decoder (Mario Brito)
649 - Interplay MVE playback subsystem (Mike Melanson)
650 - Duck DK3 and DK4 ADPCM audio decoders (Mike Melanson)
655 - RealAudio 1.0 (14_4) and 2.0 (28_8) native decoders. Author unknown, code from mplayerhq
656 (originally from public domain player for Amiga at http://www.honeypot.net/audio)
657 - current version now also compiles with older GCC (Fabrice)
658 - 4X multimedia playback system including 4xm file demuxer (Mike
659 Melanson), and 4X video and audio codecs (Michael)
660 - Creative YUV (CYUV) decoder (Mike Melanson)
661 - FFV1 codec (our very simple lossless intra only codec, compresses much better
662 than HuffYUV) (Michael)
663 - ASV1 (Asus), H.264, Intel indeo3 codecs have been added (various)
664 - tiny PNG encoder and decoder, tiny GIF decoder, PAM decoder (PPM with
665 alpha support), JPEG YUV colorspace support. (Fabrice Bellard)
666 - ffplay has been replaced with a newer version which uses SDL (optionally)
667 for multiplatform support (Fabrice)
668 - Sorenson Version 3 codec (SVQ3) support has been added (decoding only) - donated
670 - AMR format has been added (Johannes Carlsson)
671 - 3GP support has been added (Johannes Carlsson)
672 - VP3 codec has been added (Mike Melanson)
673 - more MPEG-1/2 fixes
674 - better multiplatform support, MS Visual Studio fixes (various)
675 - AltiVec optimizations (Magnus Damn and others)
676 - SH4 processor support has been added (BERO)
677 - new public interfaces (avcodec_get_pix_fmt) (Roman Shaposhnick)
678 - VOB streaming support (Brian Foley)
679 - better MP3 autodetection (Andriy Rysin)
680 - qpel encoding (Michael)
681 - 4mv+b frames encoding finally fixed (Michael)
682 - chroma ME (Michael)
683 - 5 comparison functions for ME (Michael)
684 - B-frame encoding speedup (Michael)
685 - WMV2 codec (unfinished - Michael)
686 - user specified diamond size for EPZS (Michael)
687 - Playstation STR playback subsystem, still experimental (Mike and Michael)
688 - ASV2 codec (Michael)
689 - CLJR decoder (Alex)
691 .. And lots more new enhancements and fixes.
696 - completely new integer only MPEG audio layer 1/2/3 decoder rewritten
698 - Recoded DCT and motion vector search with gcc (no longer depends on nasm)
699 - fix quantization bug in AC3 encoder
700 - added PCM codecs and format. Corrected WAV/AVI/ASF PCM issues
701 - added prototype ffplay program
702 - added GOB header parsing on H.263/H.263+ decoder (Juanjo)
703 - bug fix on MCBPC tables of H.263 (Juanjo)
704 - bug fix on DC coefficients of H.263 (Juanjo)
705 - added Advanced Prediction Mode on H.263/H.263+ decoder (Juanjo)
706 - now we can decode H.263 streams found in QuickTime files (Juanjo)
707 - now we can decode H.263 streams found in VIVO v1 files(Juanjo)
708 - preliminary RTP "friendly" mode for H.263/H.263+ coding. (Juanjo)
709 - added GOB header for H.263/H.263+ coding on RTP mode (Juanjo)
710 - now H.263 picture size is returned on the first decoded frame (Juanjo)
711 - added first regression tests
712 - added MPEG-2 TS demuxer
713 - new demux API for libav
714 - more accurate and faster IDCT (Michael)
715 - faster and entropy-controlled motion search (Michael)
716 - two pass video encoding (Michael)
717 - new video rate control (Michael)
718 - added MSMPEG4V1, MSMPEGV2 and WMV1 support (Michael)
719 - great performance improvement of video encoders and decoders (Michael)
720 - new and faster bit readers and vlc parsers (Michael)
721 - high quality encoding mode: tries all macroblock/VLC types (Michael)
722 - added DV video decoder
723 - preliminary RTP/RTSP support in ffserver and libavformat
724 - H.263+ AIC decoding/encoding support (Juanjo)
725 - VCD MPEG-PS mode (Juanjo)
726 - PSNR stuff (Juanjo)
727 - simple stats output (Juanjo)
728 - 16-bit and 15-bit RGB/BGR/GBR support (Bisqwit)
733 - some header fixes (Zdenek Kabelac <kabi at informatics.muni.cz>)
734 - many MMX optimizations (Nick Kurshev <nickols_k at mail.ru>)
735 - added configure system (actually a small shell script)
736 - added MPEG audio layer 1/2/3 decoding using LGPL'ed mpglib by
737 Michael Hipp (temporary solution - waiting for integer only
739 - fixed VIDIOCSYNC interrupt
740 - added Intel H.263 decoding support ('I263' AVI fourCC)
741 - added Real Video 1.0 decoding (needs further testing)
742 - simplified image formats again. Added PGM format (=grey
743 pgm). Renamed old PGM to PGMYUV.
744 - fixed msmpeg4 slice issues (tell me if you still find problems)
745 - fixed OpenDivX bugs with newer versions (added VOL header decoding)
746 - added support for MPlayer interface
747 - added macroblock skip optimization
748 - added MJPEG decoder
749 - added mmx/mmxext IDCT from libmpeg2
750 - added pgmyuvpipe, ppm, and ppm_pipe formats (original patch by Celer
751 <celer at shell.scrypt.net>)
752 - added pixel format conversion layer (e.g. for MJPEG or PPM)
753 - added deinterlacing option
755 - MPEG-4 vol header fixes (Jonathan Marsden <snmjbm at pacbell.net>)
756 - ARM optimizations (Lionel Ulmer <lionel.ulmer at free.fr>).
757 - Windows porting of file converter
758 - added MJPEG raw format (input/ouput)
759 - added JPEG image format support (input/output)
764 - fixed some std header definitions (Bjorn Lindgren
765 <bjorn.e.lindgren at telia.com>).
766 - added MPEG demuxer (MPEG-1 and 2 compatible).
768 - added prototype RM demuxer
769 - added AC3 decoding (done with libac3 by Aaron Holtzman)
770 - added decoding codec parameter guessing (.e.g. for MPEG, because the
771 header does not include them)
772 - fixed header generation in MPEG-1, AVI and ASF muxer: wmplayer can now
773 play them (only tested video)
774 - fixed H.263 white bug
775 - fixed phase rounding in img resample filter
776 - add MMX code for polyphase img resample filter
777 - added CPU autodetection
778 - added generic title/author/copyright/comment string handling (ASF and RM
780 - added SWF demux to extract MP3 track (not usable yet because no MP3
782 - added fractional frame rate support
783 - codecs are no longer searched by read_header() (should fix ffserver
789 - BGR24 patch (initial patch by Jeroen Vreeken <pe1rxq at amsat.org>)
790 - fixed raw yuv output
791 - added motion rounding support in MPEG-4
792 - fixed motion bug rounding in MSMPEG4
793 - added B-frame handling in video core
794 - added full MPEG-1 decoding support
795 - added partial (frame only) MPEG-2 support
796 - changed the FOURCC code for H.263 to "U263" to be able to see the
797 +AVI/H.263 file with the UB Video H.263+ decoder. MPlayer works with
798 this +codec ;) (JuanJo).
799 - Halfpel motion estimation after MB type selection (JuanJo)
800 - added pgm and .Y.U.V output format
801 - suppressed 'img:' protocol. Simply use: /tmp/test%d.[pgm|Y] as input or
803 - added pgmpipe I/O format (original patch from Martin Aumueller
804 <lists at reserv.at>, but changed completely since we use a format
805 instead of a protocol)
810 - added H.263/MPEG-4/MSMPEG4 decoding support. MPEG-4 decoding support
811 (for OpenDivX) is almost complete: 8x8 MVs and rounding are
812 missing. MSMPEG4 support is complete.
813 - added prototype MPEG-1 decoder. Only I- and P-frames handled yet (it
814 can decode ffmpeg MPEGs :-)).
815 - added libavcodec API documentation (see apiexample.c).
816 - fixed image polyphase bug (the bottom of some images could be
818 - added support for non clipped motion vectors (decoding only)
819 and image sizes non-multiple of 16
820 - added support for AC prediction (decoding only)
821 - added file overwrite confirmation (can be disabled with -y)
822 - added custom size picture to H.263 using H.263+ (Juanjo)
827 - added MSMPEG4 (aka DivX) compatible encoder. Changed default codec
828 of AVI and ASF to DIV3.
829 - added -me option to set motion estimation method
830 (default=log). suppressed redundant -hq option.
831 - added options -acodec and -vcodec to force a given codec (useful for
834 - improved dct_quantize speed
835 - factorized some motion estimation code
840 - removing grab code from ffserver and moved it to ffmpeg. Added
841 multistream support to ffmpeg.
842 - added timeshifting support for live feeds (option ?date=xxx in the
844 - added high quality image resize code with polyphase filter (need
845 mmx/see optimization). Enable multiple image size support in ffserver.
846 - added multi live feed support in ffserver
847 - suppressed master feature from ffserver (it should be done with an
848 external program which opens the .ffm url and writes it to another
850 - added preliminary support for video stream parsing (WAV and AVI half
851 done). Added proper support for audio/video file conversion in
853 - added preliminary support for video file sending from ffserver
854 - redesigning I/O subsystem: now using URL based input and output
856 - added WAV format support
857 - added "tty user interface" to ffmpeg to stop grabbing gracefully
858 - added MMX/SSE optimizations to SAD (Sums of Absolutes Differences)
859 (Juan J. Sierralta P. a.k.a. "Juanjo" <juanjo at atmlab.utfsm.cl>)
860 - added MMX DCT from mpeg2_movie 1.5 (Juanjo)
861 - added new motion estimation algorithms, log and phods (Juanjo)
862 - changed directories: libav for format handling, libavcodec for
868 - added stereo in MPEG audio encoder
873 - added 'high quality' mode which use motion vectors. It can be used in
874 real time at low resolution.
875 - fixed rounding problems which caused quality problems at high
876 bitrates and large GOP size
879 version 0.3.2: small fixes
885 version 0.3.1: added avi/divx support
888 - added MPEG-4 codec compatible with OpenDivX. It is based on the H.263 codec
889 - added sound for flash format (not tested)
892 version 0.3: initial public release