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
15 - av_basename and av_dirname
16 - adobe and limelight publisher authentication in RTMP
17 - VDPAU hardware acceleration through normal hwaccel
22 - ashowinfo audio filter
23 - 24-bit FLAC encoding
25 - deprecated the avconv -vol option. the volume filter is to be used instead.
26 - multi-channel ALAC encoding up to 7.1
27 - TAK demuxer, parser, and decoder
28 - adaptive frame-level multithreading for H.264
32 - metadata (INFO tag) support in WAV muxer
33 - support for building DLLs using MSVC
34 - remove avserver daemon mode
35 - support building on the Plan 9 operating system
36 - ffv1: support version 1.3
41 - XWD encoder and decoder
42 - Support for fragmentation in the mov/mp4 muxer
43 - ISMV (Smooth Streaming) muxer
44 - CDXL demuxer and decoder
45 - Apple ProRes encoder
46 - Sun Rasterfile Encoder
48 - ID3v2 attached pictures reading and writing
49 - WMA Lossless decoder
51 - RealAudio Lossless decoder
53 - drop support for avconv without libavfilter
54 - add libavresample audio conversion library
55 - audio filters support in libavfilter and avconv
59 - avprobe output is now standard INI or JSON. The old format can still
62 - channelsplit audio filter
63 - RTMPT protocol support
64 - iLBC encoding/decoding via libilbc
65 - Microsoft Screen 1 decoder
67 - audio channel mapping filter
68 - Microsoft ATC Screen decoder
70 - TechSmith Screen Codec 2 decoder
71 - AAC encoding via libfdk-aac
72 - Microsoft Expression Encoder Screen decoder
73 - RTMPS protocol support
74 - RTMPTS protocol support
75 - JPEG 2000 encoding support through OpenJPEG
76 - G.723.1 demuxer and decoder
77 - RTMPE protocol support
78 - RTMPTE protocol support
79 - Canopus Lossless Codec decoder
80 - avconv -shortest option is now per-output file,
81 -pass and -passlogfile are now per-output stream
83 - Microsoft Screen 2 decoder
84 - RTP depacketization of JPEG
85 - Smooth Streaming live segmenter muxer
86 - RTP packetization of JPEG
87 - Opus decoder and encoder using libopus
88 - remove -same_quant, it hasn't worked for years
89 - support for building with MSVC
100 - Automatic thread count based on detection number of (available) CPU cores
101 - Deprecate libpostproc. If desired, the switch --enable-postproc will
102 enable it but it may be removed in a later Libav release.
103 - rv34: frame-level multi-threading
104 - optimized iMDCT transform on x86 using SSE for for mpegaudiodec
110 - Flash Screen Video 2 decoder
111 - ffplay/ffprobe/ffserver renamed to avplay/avprobe/avserver
112 - ffmpeg deprecated, added avconv, which is almost the same for now, except
113 for a few incompatible changes in the options, which will hopefully make them
114 easier to use. The changes are:
115 * The options placement is now strictly enforced! While in theory the
116 options for ffmpeg should be given in [input options] -i INPUT [output
117 options] OUTPUT order, in practice it was possible to give output options
118 before the -i and it mostly worked. Except when it didn't - the behavior was
119 a bit inconsistent. In avconv, it is not possible to mix input and output
120 options. All non-global options are reset after an input or output filename.
121 * All per-file options are now truly per-file - they apply only to the next
122 input or output file and specifying different values for different files
123 will now work properly (notably -ss and -t options).
124 * All per-stream options are now truly per-stream - it is possible to
125 specify which stream(s) should a given option apply to. See the Stream
126 specifiers section in the avconv manual for details.
127 * In ffmpeg some options (like -newvideo/-newaudio/...) are irregular in the
128 sense that they're specified after the output filename instead of before,
129 like all other options. In avconv this irregularity is removed, all options
130 apply to the next input or output file.
131 * -newvideo/-newaudio/-newsubtitle options were removed. Not only were they
132 irregular and highly confusing, they were also redundant. In avconv the -map
133 option will create new streams in the output file and map input streams to
134 them. E.g. avconv -i INPUT -map 0 OUTPUT will create an output stream for
135 each stream in the first input file.
136 * The -map option now has slightly different and more powerful syntax:
137 + Colons (':') are used to separate file index/stream type/stream index
138 instead of dots. Comma (',') is used to separate the sync stream instead
139 of colon.. This is done for consistency with other options.
140 + It's possible to specify stream type. E.g. -map 0:a:2 creates an
141 output stream from the third input audio stream.
142 + Omitting the stream index now maps all the streams of the given type,
143 not just the first. E.g. -map 0:s creates output streams for all the
144 subtitle streams in the first input file.
145 + Since -map can now match multiple streams, negative mappings were
146 introduced. Negative mappings disable some streams from an already
147 defined map. E.g. '-map 0 -map -0:a:1' means 'create output streams for
148 all the stream in the first input file, except for the second audio
150 * There is a new option -c (or -codec) for choosing the decoder/encoder to
151 use, which allows to precisely specify target stream(s) consistently with
152 other options. E.g. -c:v lib264 sets the codec for all video streams, -c:a:0
153 libvorbis sets the codec for the first audio stream and -c copy copies all
154 the streams without reencoding. Old -vcodec/-acodec/-scodec options are now
156 * It is now possible to precisely specify which stream should an AVOption
157 apply to. E.g. -b:v:0 2M sets the bitrate for the first video stream, while
158 -b:a 128k sets the bitrate for all audio streams. Note that the old -ab 128k
159 syntax is deprecated and will stop working soon.
160 * -map_chapters now takes only an input file index and applies to the next
161 output file. This is consistent with how all the other options work.
162 * -map_metadata now takes only an input metadata specifier and applies to
163 the next output file. Output metadata specifier is now part of the option
164 name, similarly to the AVOptions/map/codec feature above.
165 * -metadata can now be used to set metadata on streams and chapters, e.g.
166 -metadata:s:1 language=eng sets the language of the first stream to 'eng'.
167 This made -vlang/-alang/-slang options redundant, so they were removed.
168 * -qscale option now uses stream specifiers and applies to all streams, not
169 just video. I.e. plain -qscale number would now apply to all streams. To get
170 the old behavior, use -qscale:v. Also there is now a shortcut -q for -qscale
171 and -aq is now an alias for -q:a.
172 * -vbsf/-absf/-sbsf options were removed and replaced by a -bsf option which
173 uses stream specifiers. Use -bsf:v/a/s instead of the old options.
174 * -itsscale option now uses stream specifiers, so its argument is only the
176 * -intra option was removed, use -g 0 for the same effect.
177 * -psnr option was removed, use -flags +psnr for the same effect.
178 * -vf option is now an alias to the new -filter option, which uses stream specifiers.
179 * -vframes/-aframes/-dframes options are now aliases to the new -frames option.
180 * -vtag/-atag/-stag options are now aliases to the new -tag option.
182 - Windows Media Image decoder
186 - libcdio-paranoia input device for audio CD grabbing
188 - Apple ProRes decoder
189 - CELT in Ogg demuxing
190 - VC-1 interlaced decoding
191 - lut, lutrgb, and lutyuv filters
194 - Speex encoding via libspeex
195 - 4:2:2 H.264 decoding support
196 - 4:2:2 and 4:4:4 H.264 encoding with libx264
197 - Pulseaudio input device
198 - replacement Indeo 3 decoder
199 - TLS/SSL and HTTPS protocol support
200 - AVOptions API rewritten and documented
201 - most of CODEC_FLAG2_*, some CODEC_FLAG_* and many codec-specific fields in
202 AVCodecContext deprecated. Codec private options should be used instead.
203 - Properly working defaults in libx264 wrapper, support for native presets.
204 - Encrypted OMA files support
205 - Discworld II BMV decoding support
207 - OS X Video Decoder Acceleration (VDA) support
208 - CRI ADX audio format muxer and demuxer
209 - Playstation Portable PMP format demuxer
210 - PCM format support in OMA demuxer
212 - Dxtory capture format decoder
213 - v410 QuickTime uncompressed 4:4:4 10-bit encoder and decoder
215 - Simple segmenting muxer
222 - E-AC-3 audio encoder
223 - ac3enc: add channel coupling support
224 - floating-point sample format support for (E-)AC-3, DCA, AAC, Vorbis decoders
225 - H.264/MPEG frame-level multithreading
226 - av_metadata_* functions renamed to av_dict_* and moved to libavutil
227 - 4:4:4 H.264 decoding support
228 - 10-bit H.264 optimizations for x86
229 - bump libswscale for recently reported ABI break
234 - VP8 frame-level multithreading
235 - NEON optimizations for VP8
236 - removed a lot of deprecated API cruft
237 - FFT and IMDCT optimizations for AVX (Sandy Bridge) processors
239 - SMPTE 302M AES3 audio decoder
240 - ffmpeg no longer quits after the 'q' key is pressed; use 'ctrl+c' instead
241 - 9bit and 10bit per sample support in the H.264 decoder
246 - WebM support in Matroska de/muxer
247 - low overhead Ogg muxing
249 - VP8 de/encoding via libvpx
250 - Demuxer for On2's IVF format
251 - Pictor/PC Paint decoder
253 - libfaad2 wrapper removed
254 - DTS-ES extension (XCh) decoding support
256 - RTSP tunneling over HTTP
257 - RTP depacketization of SVQ3
258 - -strict inofficial replaced by -strict unofficial
259 - ffplay -exitonkeydown and -exitonmousedown options added
260 - native GSM / GSM MS decoder
261 - RTP depacketization of QDM2
262 - ANSI/ASCII art playback system
263 - Lego Mindstorms RSO de/muxer
264 - SubRip subtitle file muxer and demuxer
265 - Chinese AVS encoding via libxavs
266 - ffprobe -show_packets option added
267 - RTP packetization of Theora and Vorbis
268 - RTP depacketization of MP4A-LATM
269 - RTP packetization and depacketization of VP8
271 - Apple HTTP Live Streaming demuxer
274 - G.722 ADPCM audio encoder/decoder
277 - frei0r wrapper filter
278 - change crop filter syntax to width:height:x:y
279 - make the crop filter accept parametric expressions
280 - make ffprobe accept AVFormatContext options
283 - Demuxer for Leitch/Harris' VR native stream format (LXF)
284 - RTP depacketization of the X-QT QuickTime format
285 - SAP (Session Announcement Protocol, RFC 2974) muxer and demuxer
287 - ffmpeg -crop* options removed
288 - transpose filter added
289 - ffmpeg -force_key_frames option added
290 - demuxer for receiving raw rtp:// URLs without an SDP description
291 - single stream LATM/LOAS decoder
292 - setpts filter added
293 - Win64 support for optimized x86 assembly functions
294 - MJPEG/AVI1 to JPEG/JFIF bitstream filter
295 - ASS subtitle encoder and decoder
296 - IEC 61937 encapsulation for E-AC-3, TrueHD, DTS-HD (for HDMI passthrough)
297 - overlay filter added
298 - rename aspect filter to setdar, and pixelaspect to setsar
300 - Mobotix .mxg demuxer
301 - frei0r source added
302 - hqdn3d filter added
303 - RTP depacketization of QCELP
305 - gradfun filter added
307 - replace the ocv_smooth filter with a more generic ocv filter
308 - Windows Televison (WTV) demuxer
309 - FFmpeg metadata format muxer and demuxer
310 - SubRip (srt) subtitle decoder
311 - floating-point AC-3 encoder added
313 - ffmpeg -copytb option added
315 - Wing Commander IV movies decoder added
317 - Bink version 'b' audio and video decoder
318 - Bitmap Brothers JV playback system
319 - Apple HTTP Live Streaming protocol handler
320 - sndio support for playback and record
321 - Linux framebuffer input device added
322 - Chronomaster DFA decoder
323 - Mobotix MxPEG decoder
324 - AAC encoding via libvo-aacenc
325 - AMR-WB encoding via libvo-amrwbenc
327 - fieldorder video filter added
332 - PB-frame decoding for H.263
333 - deprecated vhook subsystem removed
334 - deprecated old scaler removed
336 - Alpha channel scaler
338 - RTP packetization of H.263
339 - RTP packetization of AMR
340 - RTP depacketization of Vorbis
341 - CorePNG decoding support
342 - Cook multichannel decoding support
343 - introduced avlanguage helpers in libavformat
344 - 8088flex TMV demuxer and decoder
345 - per-stream language-tags extraction in asfdec
346 - V210 decoder and encoder
347 - remaining GPL parts in AC-3 decoder converted to LGPL
349 - SoX native format muxer and demuxer
350 - AMR-NB decoding/encoding, AMR-WB decoding via OpenCORE libraries
352 - Electronic Arts Madcow decoder
353 - DivX (XSUB) subtitle encoder
354 - nonfree libamr support for AMR-NB/WB decoding/encoding removed
355 - experimental AAC encoder
356 - RTP depacketization of ASF and RTSP from WMS servers
357 - RTMP support in libavformat
358 - noX handling for OPT_BOOL X options
360 - IEC-61937 compatible Muxer
362 - Bluray (PGS) subtitle decoder
363 - LPCM support in MPEG-TS (HDMV RID as found on Blu-ray disks)
365 - Core Audio Format demuxer
367 - MD STUDIO audio demuxer
368 - RF64 support in WAV demuxer
369 - MPEG-4 Audio Lossless Coding (ALS) decoder
370 - -formats option split into -formats, -codecs, -bsfs, and -protocols
372 - CDG demuxer and decoder
374 - Auravision Aura 1 and 2 decoders
375 - Deluxe Paint Animation playback system
377 - Adobe Filmstrip muxer and demuxer
378 - RTP depacketization of H.263
379 - Bink demuxer and audio/video decoders
380 - enable symbol versioning by default for linkers that support it
381 - IFF PBM/ILBM bitmap decoder
384 - RTP depacketization of AMR
390 - Kega Game Video (KGV1) decoder
391 - VorbisComment writing for FLAC, Ogg FLAC and Ogg Speex files
392 - RTP depacketization of Theora
393 - HTTP Digest authentication
394 - RTMP/RTMPT/RTMPS/RTMPE/RTMPTE protocol support via librtmp
395 - Psygnosis YOP demuxer and video decoder
396 - spectral extension support in the E-AC-3 decoder
397 - unsharp video filter
398 - RTP hinting in the mov/3gp/mp4 muxer
399 - Dirac in Ogg demuxing
400 - seek to keyframes in Ogg
401 - 4:2:2 and 4:4:4 Theora decoding
402 - 35% faster VP3/Theora decoding
403 - faster AAC decoding
404 - faster H.264 decoding
405 - RealAudio 1.0 (14.4K) encoder
410 - DV50 AKA DVCPRO50 encoder, decoder, muxer and demuxer
411 - TechSmith Camtasia (TSCC) video decoder
412 - IBM Ultimotion (ULTI) video decoder
413 - Sierra Online audio file demuxer and decoder
414 - Apple QuickDraw (qdrw) video decoder
415 - Creative ADPCM audio decoder (16 bits as well as 8 bits schemes)
416 - Electronic Arts Multimedia (WVE/UV2/etc.) file demuxer
417 - Miro VideoXL (VIXL) video decoder
418 - H.261 video encoder
420 - Nullsoft Video (NSV) file demuxer
421 - Shorten audio decoder
423 - Apple Lossless Audio Codec (ALAC) decoder
424 - Winnov WNV1 video decoder
425 - Autodesk Animator Studio Codec (AASC) decoder
426 - Indeo 2 video decoder
427 - Fraps FPS1 video decoder
428 - Snow video encoder/decoder
429 - Sonic audio encoder/decoder
430 - Vorbis audio decoder
431 - Macromedia ADPCM decoder
432 - Duck TrueMotion 2 video decoder
433 - support for decoding FLX and DTA extensions in FLIC files
434 - H.264 custom quantization matrices support
435 - ffserver fixed, it should now be usable again
437 - Real Cooker audio decoder
438 - TrueSpeech audio decoder
439 - WMA2 audio decoder fixed, now all files should play correctly
440 - RealAudio 14.4 and 28.8 decoders fixed
442 - build system improvements
443 - tabs and trailing whitespace removed from the codebase
444 - CamStudio video decoder
445 - AIFF/AIFF-C audio format, encoding and decoding
446 - ADTS AAC file reading and writing
447 - Creative VOC file reading and writing
448 - American Laser Games multimedia (*.mm) playback system
449 - Zip Motion Blocks Video decoder
450 - improved Theora/VP3 decoder
451 - True Audio (TTA) decoder
452 - AVS demuxer and video decoder
454 - Smacker demuxer and decoder
455 - NuppelVideo/MythTV demuxer and RTjpeg decoder
457 - MPEG-2 intra VLC support
458 - MPEG-2 4:2:2 encoder
459 - Flash Screen Video decoder
461 - Chinese AVS decoder
464 - VC-1/WMV3/WMV9 video decoder
467 - VMware video decoder
470 - WavPack lossless audio decoder
471 - Targa (.TGA) picture decoder
472 - Vorbis audio encoder
473 - Delphine Software .cin demuxer/audio and video decoder
474 - Tiertex .seq demuxer/video decoder
476 - TIFF picture encoder and decoder
477 - GIF picture decoder
478 - Intel Music Coder decoder
479 - Zip Motion Blocks Video encoder
481 - Flash Screen Video encoder
482 - Theora encoding via libtheora
485 - GSM-MS encoder and decoder
487 - DXA demuxer and decoder
489 - Gamecube movie (.THP) playback system
490 - Blackfin optimizations
491 - Interplay C93 demuxer and video decoder
492 - Bethsoft VID demuxer and video decoder
495 - V.Flash PTX decoder
496 - RoQ muxer, RoQ audio encoder
497 - Renderware TXD demuxer and decoder
498 - extern C declarations for C++ removed from headers
499 - sws_flags command line option
503 - OS/2 support removed and restored again
506 - additional SPARC (VIS) optimizations
508 - slice-based parallel H.264 decoding
509 - Monkey's Audio demuxer and decoder
510 - AMV audio and video decoder
512 - H.264 PAFF decoding
513 - Nellymoser ASAO decoder
514 - Beam Software SIFF demuxer and decoder
515 - libvorbis Vorbis decoding removed in favor of native decoder
516 - IntraX8 (J-Frame) subdecoder for WMV2 and VC-1
517 - Ogg (Theora, Vorbis and FLAC) muxer
518 - The "device" muxers and demuxers are now in a new libavdevice library
519 - PC Paintbrush PCX decoder
520 - Sun Rasterfile decoder
521 - TechnoTrend PVA demuxer
522 - Linux Media Labs MPEG-4 (LMLM4) demuxer
523 - AVM2 (Flash 9) SWF muxer
524 - QT variant of IMA ADPCM encoder
526 - iPod/iPhone compatible mp4 muxer
528 - MSN TCP Webcam stream demuxer
529 - RL2 demuxer / decoder
532 - non-recursive Makefiles
534 - MAXIS EA XA (.xa) demuxer / decoder
538 - Electronic Arts CMV decoder
539 - Motion Pixels Video decoder
540 - Motion Pixels MVI demuxer
541 - removed animated GIF decoder/demuxer
542 - D-Cinema audio muxer
543 - Electronic Arts TGV decoder
544 - Apple Lossless Audio Codec (ALAC) encoder
546 - floating point PCM encoder/decoder
548 - DV100 AKA DVCPRO HD decoder and demuxer
549 - E-AC-3 support added to AC-3 decoder
550 - Nellymoser ASAO encoder
551 - ASS and SSA demuxer and muxer
552 - liba52 wrapper removed
553 - SVQ3 watermark decoding support
554 - Speex decoding via libspeex
555 - Electronic Arts TGQ decoder
557 - QCELP / PureVoice decoder
559 - hybrid WavPack support
560 - R3D REDCODE demuxer
561 - ALSA support for playback and record
562 - Electronic Arts TQI decoder
563 - OpenJPEG based JPEG 2000 decoder
564 - NC (NC4600) camera file demuxer
565 - Gopher client support
567 - generic metadata API
572 - DV encoder, DV muxer
573 - Microsoft RLE video decoder
574 - Microsoft Video-1 decoder
575 - Apple Animation (RLE) decoder
576 - Apple Graphics (SMC) decoder
577 - Apple Video (RPZA) decoder
579 - Sega FILM (CPK) file demuxer
580 - Westwood multimedia support (VQA & AUD files)
581 - Id Quake II CIN playback support
583 - FLIC playback support
584 - RealVideo 2.0 (RV20) decoder
585 - Duck TrueMotion v1 (DUCK) video decoder
586 - Sierra VMD demuxer and video decoder
587 - MSZH and ZLIB decoder support
591 - rate distortion optimal cbp support
592 - rate distorted optimal ac prediction for MPEG-4
593 - rate distorted optimal lambda->qp support
594 - AAC encoding with libfaac
595 - Sunplus JPEG codec (SP5X) support
596 - use Lagrange multipler instead of QP for ratecontrol
597 - Theora/VP3 decoding support
598 - XA and ADX ADPCM codecs
599 - export MPEG-2 active display area / pan scan
600 - Add support for configuring with IBM XLC
601 - floating point AAN DCT
602 - initial support for zygo video (not complete)
604 - new audio/video parser API
606 - av_read_frame() and av_seek_frame() support
607 - missing last frame fixes
608 - seek by mouse in ffplay
609 - noise reduction of DCT coefficients
610 - H.263 OBMC & 4MV support
611 - H.263 alternative inter vlc support
613 - H.263 slice structured mode
614 - interlaced DCT support for MPEG-2 encoding
615 - stuffing to stay above min_bitrate
616 - MB type & QP visualization
617 - frame stepping for ffplay
618 - interlaced motion estimation
619 - alternate scantable support
620 - SVCD scan offset support
623 - quantizer noise shaping
624 - G.726 ADPCM audio codec
626 - multithreaded/SMP motion estimation
627 - multithreaded/SMP encoding for MPEG-1/MPEG-2/MPEG-4/H.263
628 - multithreaded/SMP decoding for MPEG-2
630 - Metrowerks CodeWarrior suppport
631 - H.263+ custom pcf support
632 - nicer output for 'ffmpeg -formats'
634 - SGI image format, encoding and decoding
635 - H.264 loop filter support
636 - H.264 CABAC support
637 - nicer looking arrows for the motion vector visualization
638 - improved VCD support
639 - audio timestamp drift compensation
640 - MPEG-2 YUV 422/444 support
641 - polyphase kaiser windowed sinc and blackman nuttall windowed sinc audio resample
642 - better image scaling
644 - correctly interleave packets during encoding
645 - VIS optimized motion compensation
646 - intra_dc_precision>0 encoding support
647 - support reuse of motion vectors/MB types/field select values of the source video
648 - more accurate deblock filter
650 - many optimizations and bugfixes
651 - FunCom ISS audio file demuxer and according ADPCM decoding
656 - MPEG-2 video encoding (Michael)
657 - Id RoQ playback subsystem (Mike Melanson and Tim Ferguson)
658 - Wing Commander III Movie (.mve) file playback subsystem (Mike Melanson
660 - Xan DPCM audio decoder (Mario Brito)
661 - Interplay MVE playback subsystem (Mike Melanson)
662 - Duck DK3 and DK4 ADPCM audio decoders (Mike Melanson)
667 - RealAudio 1.0 (14_4) and 2.0 (28_8) native decoders. Author unknown, code from mplayerhq
668 (originally from public domain player for Amiga at http://www.honeypot.net/audio)
669 - current version now also compiles with older GCC (Fabrice)
670 - 4X multimedia playback system including 4xm file demuxer (Mike
671 Melanson), and 4X video and audio codecs (Michael)
672 - Creative YUV (CYUV) decoder (Mike Melanson)
673 - FFV1 codec (our very simple lossless intra only codec, compresses much better
674 than HuffYUV) (Michael)
675 - ASV1 (Asus), H.264, Intel indeo3 codecs have been added (various)
676 - tiny PNG encoder and decoder, tiny GIF decoder, PAM decoder (PPM with
677 alpha support), JPEG YUV colorspace support. (Fabrice Bellard)
678 - ffplay has been replaced with a newer version which uses SDL (optionally)
679 for multiplatform support (Fabrice)
680 - Sorenson Version 3 codec (SVQ3) support has been added (decoding only) - donated
682 - AMR format has been added (Johannes Carlsson)
683 - 3GP support has been added (Johannes Carlsson)
684 - VP3 codec has been added (Mike Melanson)
685 - more MPEG-1/2 fixes
686 - better multiplatform support, MS Visual Studio fixes (various)
687 - AltiVec optimizations (Magnus Damn and others)
688 - SH4 processor support has been added (BERO)
689 - new public interfaces (avcodec_get_pix_fmt) (Roman Shaposhnick)
690 - VOB streaming support (Brian Foley)
691 - better MP3 autodetection (Andriy Rysin)
692 - qpel encoding (Michael)
693 - 4mv+b frames encoding finally fixed (Michael)
694 - chroma ME (Michael)
695 - 5 comparison functions for ME (Michael)
696 - B-frame encoding speedup (Michael)
697 - WMV2 codec (unfinished - Michael)
698 - user specified diamond size for EPZS (Michael)
699 - Playstation STR playback subsystem, still experimental (Mike and Michael)
700 - ASV2 codec (Michael)
701 - CLJR decoder (Alex)
703 .. And lots more new enhancements and fixes.
708 - completely new integer only MPEG audio layer 1/2/3 decoder rewritten
710 - Recoded DCT and motion vector search with gcc (no longer depends on nasm)
711 - fix quantization bug in AC3 encoder
712 - added PCM codecs and format. Corrected WAV/AVI/ASF PCM issues
713 - added prototype ffplay program
714 - added GOB header parsing on H.263/H.263+ decoder (Juanjo)
715 - bug fix on MCBPC tables of H.263 (Juanjo)
716 - bug fix on DC coefficients of H.263 (Juanjo)
717 - added Advanced Prediction Mode on H.263/H.263+ decoder (Juanjo)
718 - now we can decode H.263 streams found in QuickTime files (Juanjo)
719 - now we can decode H.263 streams found in VIVO v1 files(Juanjo)
720 - preliminary RTP "friendly" mode for H.263/H.263+ coding. (Juanjo)
721 - added GOB header for H.263/H.263+ coding on RTP mode (Juanjo)
722 - now H.263 picture size is returned on the first decoded frame (Juanjo)
723 - added first regression tests
724 - added MPEG-2 TS demuxer
725 - new demux API for libav
726 - more accurate and faster IDCT (Michael)
727 - faster and entropy-controlled motion search (Michael)
728 - two pass video encoding (Michael)
729 - new video rate control (Michael)
730 - added MSMPEG4V1, MSMPEGV2 and WMV1 support (Michael)
731 - great performance improvement of video encoders and decoders (Michael)
732 - new and faster bit readers and vlc parsers (Michael)
733 - high quality encoding mode: tries all macroblock/VLC types (Michael)
734 - added DV video decoder
735 - preliminary RTP/RTSP support in ffserver and libavformat
736 - H.263+ AIC decoding/encoding support (Juanjo)
737 - VCD MPEG-PS mode (Juanjo)
738 - PSNR stuff (Juanjo)
739 - simple stats output (Juanjo)
740 - 16-bit and 15-bit RGB/BGR/GBR support (Bisqwit)
745 - some header fixes (Zdenek Kabelac <kabi at informatics.muni.cz>)
746 - many MMX optimizations (Nick Kurshev <nickols_k at mail.ru>)
747 - added configure system (actually a small shell script)
748 - added MPEG audio layer 1/2/3 decoding using LGPL'ed mpglib by
749 Michael Hipp (temporary solution - waiting for integer only
751 - fixed VIDIOCSYNC interrupt
752 - added Intel H.263 decoding support ('I263' AVI fourCC)
753 - added Real Video 1.0 decoding (needs further testing)
754 - simplified image formats again. Added PGM format (=grey
755 pgm). Renamed old PGM to PGMYUV.
756 - fixed msmpeg4 slice issues (tell me if you still find problems)
757 - fixed OpenDivX bugs with newer versions (added VOL header decoding)
758 - added support for MPlayer interface
759 - added macroblock skip optimization
760 - added MJPEG decoder
761 - added mmx/mmxext IDCT from libmpeg2
762 - added pgmyuvpipe, ppm, and ppm_pipe formats (original patch by Celer
763 <celer at shell.scrypt.net>)
764 - added pixel format conversion layer (e.g. for MJPEG or PPM)
765 - added deinterlacing option
767 - MPEG-4 vol header fixes (Jonathan Marsden <snmjbm at pacbell.net>)
768 - ARM optimizations (Lionel Ulmer <lionel.ulmer at free.fr>).
769 - Windows porting of file converter
770 - added MJPEG raw format (input/ouput)
771 - added JPEG image format support (input/output)
776 - fixed some std header definitions (Bjorn Lindgren
777 <bjorn.e.lindgren at telia.com>).
778 - added MPEG demuxer (MPEG-1 and 2 compatible).
780 - added prototype RM demuxer
781 - added AC3 decoding (done with libac3 by Aaron Holtzman)
782 - added decoding codec parameter guessing (.e.g. for MPEG, because the
783 header does not include them)
784 - fixed header generation in MPEG-1, AVI and ASF muxer: wmplayer can now
785 play them (only tested video)
786 - fixed H.263 white bug
787 - fixed phase rounding in img resample filter
788 - add MMX code for polyphase img resample filter
789 - added CPU autodetection
790 - added generic title/author/copyright/comment string handling (ASF and RM
792 - added SWF demux to extract MP3 track (not usable yet because no MP3
794 - added fractional frame rate support
795 - codecs are no longer searched by read_header() (should fix ffserver
801 - BGR24 patch (initial patch by Jeroen Vreeken <pe1rxq at amsat.org>)
802 - fixed raw yuv output
803 - added motion rounding support in MPEG-4
804 - fixed motion bug rounding in MSMPEG4
805 - added B-frame handling in video core
806 - added full MPEG-1 decoding support
807 - added partial (frame only) MPEG-2 support
808 - changed the FOURCC code for H.263 to "U263" to be able to see the
809 +AVI/H.263 file with the UB Video H.263+ decoder. MPlayer works with
810 this +codec ;) (JuanJo).
811 - Halfpel motion estimation after MB type selection (JuanJo)
812 - added pgm and .Y.U.V output format
813 - suppressed 'img:' protocol. Simply use: /tmp/test%d.[pgm|Y] as input or
815 - added pgmpipe I/O format (original patch from Martin Aumueller
816 <lists at reserv.at>, but changed completely since we use a format
817 instead of a protocol)
822 - added H.263/MPEG-4/MSMPEG4 decoding support. MPEG-4 decoding support
823 (for OpenDivX) is almost complete: 8x8 MVs and rounding are
824 missing. MSMPEG4 support is complete.
825 - added prototype MPEG-1 decoder. Only I- and P-frames handled yet (it
826 can decode ffmpeg MPEGs :-)).
827 - added libavcodec API documentation (see apiexample.c).
828 - fixed image polyphase bug (the bottom of some images could be
830 - added support for non clipped motion vectors (decoding only)
831 and image sizes non-multiple of 16
832 - added support for AC prediction (decoding only)
833 - added file overwrite confirmation (can be disabled with -y)
834 - added custom size picture to H.263 using H.263+ (Juanjo)
839 - added MSMPEG4 (aka DivX) compatible encoder. Changed default codec
840 of AVI and ASF to DIV3.
841 - added -me option to set motion estimation method
842 (default=log). suppressed redundant -hq option.
843 - added options -acodec and -vcodec to force a given codec (useful for
846 - improved dct_quantize speed
847 - factorized some motion estimation code
852 - removing grab code from ffserver and moved it to ffmpeg. Added
853 multistream support to ffmpeg.
854 - added timeshifting support for live feeds (option ?date=xxx in the
856 - added high quality image resize code with polyphase filter (need
857 mmx/see optimization). Enable multiple image size support in ffserver.
858 - added multi live feed support in ffserver
859 - suppressed master feature from ffserver (it should be done with an
860 external program which opens the .ffm url and writes it to another
862 - added preliminary support for video stream parsing (WAV and AVI half
863 done). Added proper support for audio/video file conversion in
865 - added preliminary support for video file sending from ffserver
866 - redesigning I/O subsystem: now using URL based input and output
868 - added WAV format support
869 - added "tty user interface" to ffmpeg to stop grabbing gracefully
870 - added MMX/SSE optimizations to SAD (Sums of Absolutes Differences)
871 (Juan J. Sierralta P. a.k.a. "Juanjo" <juanjo at atmlab.utfsm.cl>)
872 - added MMX DCT from mpeg2_movie 1.5 (Juanjo)
873 - added new motion estimation algorithms, log and phods (Juanjo)
874 - changed directories: libav for format handling, libavcodec for
880 - added stereo in MPEG audio encoder
885 - added 'high quality' mode which use motion vectors. It can be used in
886 real time at low resolution.
887 - fixed rounding problems which caused quality problems at high
888 bitrates and large GOP size
891 version 0.3.2: small fixes
897 version 0.3.1: added avi/divx support
900 - added MPEG-4 codec compatible with OpenDivX. It is based on the H.263 codec
901 - added sound for flash format (not tested)
904 version 0.3: initial public release