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 - 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
15 - asetpts filter (same as setpts, but for audio)
16 - trim and atrim filters
17 - avconv -t and -ss (output-only) options are now sample-accurate when
19 - Matroska muxer can now put the index at the beginning of the file.
20 - avconv -deinterlace option removed, the yadif filter should be used instead
21 - Apple Intermediate Codec decoder
22 - Escape 130 video decoder
23 - support for slice multithreading in libavfilter
24 - VC-1 interlaced B-frame support
25 - support for WavPack muxing (raw and in Matroska)
27 - WavPack encoding through libwavpack
28 - Added the -n parameter to avconv
30 - when transcoding with avconv (i.e. not streamcopying), -ss is now accurate
31 even when used as an input option. Previous behavior can be restored with
32 the -noaccurate_seek option.
33 - avconv -t option can now be used for inputs, to limit the duration of
34 data read from an input file
35 - Voxware MetaSound decoder
37 - Error Resilient AAC syntax (ER AAC LC) decoding
38 - Low Delay AAC (ER AAC LD) decoding
39 - mux chapters in ASF files
40 - Opus in Ogg demuxing
41 - Enhanced Low Delay AAC (ER AAC ELD) decoding (no LD SBR support)
43 - HNM version 4 demuxer and video decoder
45 - raw HEVC, HEVC in MOV/MP4, HEVC in Matroska, HEVC in MPEG-TS demuxing
46 - remove avplay -vismv option, which has not worked for a long time
48 - setsar/setdar filters now support variables in ratio expressions
49 - dar variable in the scale filter now returns the actual DAR (i.e. a * sar)
51 - support for decoding through VDPAU in avconv (the -hwaccel option)
52 - remove mp3_header_(de)compress bitstream filters
53 - stereoscopic 3d metadata handling
54 - png standalone parser
58 - av_basename and av_dirname
59 - adobe and limelight publisher authentication in RTMP
60 - VDPAU hardware acceleration through normal hwaccel
65 - ashowinfo audio filter
66 - 24-bit FLAC encoding
68 - deprecated the avconv -vol option. the volume filter is to be used instead.
69 - multi-channel ALAC encoding up to 7.1
70 - TAK demuxer, parser, and decoder
71 - adaptive frame-level multithreading for H.264
75 - metadata (INFO tag) support in WAV muxer
76 - support for building DLLs using MSVC
77 - remove avserver daemon mode
78 - support building on the Plan 9 operating system
79 - ffv1: support version 1.3
84 - XWD encoder and decoder
85 - Support for fragmentation in the mov/mp4 muxer
86 - ISMV (Smooth Streaming) muxer
87 - CDXL demuxer and decoder
88 - Apple ProRes encoder
89 - Sun Rasterfile Encoder
91 - ID3v2 attached pictures reading and writing
92 - WMA Lossless decoder
94 - RealAudio Lossless decoder
96 - drop support for avconv without libavfilter
97 - add libavresample audio conversion library
98 - audio filters support in libavfilter and avconv
102 - avprobe output is now standard INI or JSON. The old format can still
103 be used with -of old.
104 - Indeo Audio decoder
105 - channelsplit audio filter
106 - RTMPT protocol support
107 - iLBC encoding/decoding via libilbc
108 - Microsoft Screen 1 decoder
110 - audio channel mapping filter
111 - Microsoft ATC Screen decoder
113 - TechSmith Screen Codec 2 decoder
114 - AAC encoding via libfdk-aac
115 - Microsoft Expression Encoder Screen decoder
116 - RTMPS protocol support
117 - RTMPTS protocol support
118 - JPEG 2000 encoding support through OpenJPEG
119 - G.723.1 demuxer and decoder
120 - RTMPE protocol support
121 - RTMPTE protocol support
122 - Canopus Lossless Codec decoder
123 - avconv -shortest option is now per-output file,
124 -pass and -passlogfile are now per-output stream
126 - Microsoft Screen 2 decoder
127 - RTP depacketization of JPEG
128 - Smooth Streaming live segmenter muxer
129 - RTP packetization of JPEG
130 - Opus decoder and encoder using libopus
131 - remove -same_quant, it hasn't worked for years
132 - support for building with MSVC
143 - Automatic thread count based on detection number of (available) CPU cores
144 - Deprecate libpostproc. If desired, the switch --enable-postproc will
145 enable it but it may be removed in a later Libav release.
146 - rv34: frame-level multi-threading
147 - optimized iMDCT transform on x86 using SSE for for mpegaudiodec
153 - Flash Screen Video 2 decoder
154 - ffplay/ffprobe/ffserver renamed to avplay/avprobe/avserver
155 - ffmpeg deprecated, added avconv, which is almost the same for now, except
156 for a few incompatible changes in the options, which will hopefully make them
157 easier to use. The changes are:
158 * The options placement is now strictly enforced! While in theory the
159 options for ffmpeg should be given in [input options] -i INPUT [output
160 options] OUTPUT order, in practice it was possible to give output options
161 before the -i and it mostly worked. Except when it didn't - the behavior was
162 a bit inconsistent. In avconv, it is not possible to mix input and output
163 options. All non-global options are reset after an input or output filename.
164 * All per-file options are now truly per-file - they apply only to the next
165 input or output file and specifying different values for different files
166 will now work properly (notably -ss and -t options).
167 * All per-stream options are now truly per-stream - it is possible to
168 specify which stream(s) should a given option apply to. See the Stream
169 specifiers section in the avconv manual for details.
170 * In ffmpeg some options (like -newvideo/-newaudio/...) are irregular in the
171 sense that they're specified after the output filename instead of before,
172 like all other options. In avconv this irregularity is removed, all options
173 apply to the next input or output file.
174 * -newvideo/-newaudio/-newsubtitle options were removed. Not only were they
175 irregular and highly confusing, they were also redundant. In avconv the -map
176 option will create new streams in the output file and map input streams to
177 them. E.g. avconv -i INPUT -map 0 OUTPUT will create an output stream for
178 each stream in the first input file.
179 * The -map option now has slightly different and more powerful syntax:
180 + Colons (':') are used to separate file index/stream type/stream index
181 instead of dots. Comma (',') is used to separate the sync stream instead
182 of colon.. This is done for consistency with other options.
183 + It's possible to specify stream type. E.g. -map 0:a:2 creates an
184 output stream from the third input audio stream.
185 + Omitting the stream index now maps all the streams of the given type,
186 not just the first. E.g. -map 0:s creates output streams for all the
187 subtitle streams in the first input file.
188 + Since -map can now match multiple streams, negative mappings were
189 introduced. Negative mappings disable some streams from an already
190 defined map. E.g. '-map 0 -map -0:a:1' means 'create output streams for
191 all the stream in the first input file, except for the second audio
193 * There is a new option -c (or -codec) for choosing the decoder/encoder to
194 use, which allows to precisely specify target stream(s) consistently with
195 other options. E.g. -c:v lib264 sets the codec for all video streams, -c:a:0
196 libvorbis sets the codec for the first audio stream and -c copy copies all
197 the streams without reencoding. Old -vcodec/-acodec/-scodec options are now
199 * It is now possible to precisely specify which stream should an AVOption
200 apply to. E.g. -b:v:0 2M sets the bitrate for the first video stream, while
201 -b:a 128k sets the bitrate for all audio streams. Note that the old -ab 128k
202 syntax is deprecated and will stop working soon.
203 * -map_chapters now takes only an input file index and applies to the next
204 output file. This is consistent with how all the other options work.
205 * -map_metadata now takes only an input metadata specifier and applies to
206 the next output file. Output metadata specifier is now part of the option
207 name, similarly to the AVOptions/map/codec feature above.
208 * -metadata can now be used to set metadata on streams and chapters, e.g.
209 -metadata:s:1 language=eng sets the language of the first stream to 'eng'.
210 This made -vlang/-alang/-slang options redundant, so they were removed.
211 * -qscale option now uses stream specifiers and applies to all streams, not
212 just video. I.e. plain -qscale number would now apply to all streams. To get
213 the old behavior, use -qscale:v. Also there is now a shortcut -q for -qscale
214 and -aq is now an alias for -q:a.
215 * -vbsf/-absf/-sbsf options were removed and replaced by a -bsf option which
216 uses stream specifiers. Use -bsf:v/a/s instead of the old options.
217 * -itsscale option now uses stream specifiers, so its argument is only the
219 * -intra option was removed, use -g 0 for the same effect.
220 * -psnr option was removed, use -flags +psnr for the same effect.
221 * -vf option is now an alias to the new -filter option, which uses stream specifiers.
222 * -vframes/-aframes/-dframes options are now aliases to the new -frames option.
223 * -vtag/-atag/-stag options are now aliases to the new -tag option.
225 - Windows Media Image decoder
229 - libcdio-paranoia input device for audio CD grabbing
231 - Apple ProRes decoder
232 - CELT in Ogg demuxing
233 - VC-1 interlaced decoding
234 - lut, lutrgb, and lutyuv filters
237 - Speex encoding via libspeex
238 - 4:2:2 H.264 decoding support
239 - 4:2:2 and 4:4:4 H.264 encoding with libx264
240 - Pulseaudio input device
241 - replacement Indeo 3 decoder
242 - TLS/SSL and HTTPS protocol support
243 - AVOptions API rewritten and documented
244 - most of CODEC_FLAG2_*, some CODEC_FLAG_* and many codec-specific fields in
245 AVCodecContext deprecated. Codec private options should be used instead.
246 - Properly working defaults in libx264 wrapper, support for native presets.
247 - Encrypted OMA files support
248 - Discworld II BMV decoding support
250 - OS X Video Decoder Acceleration (VDA) support
251 - CRI ADX audio format muxer and demuxer
252 - Playstation Portable PMP format demuxer
253 - PCM format support in OMA demuxer
255 - Dxtory capture format decoder
256 - v410 QuickTime uncompressed 4:4:4 10-bit encoder and decoder
258 - Simple segmenting muxer
265 - E-AC-3 audio encoder
266 - ac3enc: add channel coupling support
267 - floating-point sample format support for (E-)AC-3, DCA, AAC, Vorbis decoders
268 - H.264/MPEG frame-level multithreading
269 - av_metadata_* functions renamed to av_dict_* and moved to libavutil
270 - 4:4:4 H.264 decoding support
271 - 10-bit H.264 optimizations for x86
272 - bump libswscale for recently reported ABI break
277 - VP8 frame-level multithreading
278 - NEON optimizations for VP8
279 - removed a lot of deprecated API cruft
280 - FFT and IMDCT optimizations for AVX (Sandy Bridge) processors
282 - SMPTE 302M AES3 audio decoder
283 - ffmpeg no longer quits after the 'q' key is pressed; use 'ctrl+c' instead
284 - 9bit and 10bit per sample support in the H.264 decoder
289 - WebM support in Matroska de/muxer
290 - low overhead Ogg muxing
292 - VP8 de/encoding via libvpx
293 - Demuxer for On2's IVF format
294 - Pictor/PC Paint decoder
296 - libfaad2 wrapper removed
297 - DTS-ES extension (XCh) decoding support
299 - RTSP tunneling over HTTP
300 - RTP depacketization of SVQ3
301 - -strict inofficial replaced by -strict unofficial
302 - ffplay -exitonkeydown and -exitonmousedown options added
303 - native GSM / GSM MS decoder
304 - RTP depacketization of QDM2
305 - ANSI/ASCII art playback system
306 - Lego Mindstorms RSO de/muxer
307 - SubRip subtitle file muxer and demuxer
308 - Chinese AVS encoding via libxavs
309 - ffprobe -show_packets option added
310 - RTP packetization of Theora and Vorbis
311 - RTP depacketization of MP4A-LATM
312 - RTP packetization and depacketization of VP8
314 - Apple HTTP Live Streaming demuxer
317 - G.722 ADPCM audio encoder/decoder
320 - frei0r wrapper filter
321 - change crop filter syntax to width:height:x:y
322 - make the crop filter accept parametric expressions
323 - make ffprobe accept AVFormatContext options
326 - Demuxer for Leitch/Harris' VR native stream format (LXF)
327 - RTP depacketization of the X-QT QuickTime format
328 - SAP (Session Announcement Protocol, RFC 2974) muxer and demuxer
330 - ffmpeg -crop* options removed
331 - transpose filter added
332 - ffmpeg -force_key_frames option added
333 - demuxer for receiving raw rtp:// URLs without an SDP description
334 - single stream LATM/LOAS decoder
335 - setpts filter added
336 - Win64 support for optimized x86 assembly functions
337 - MJPEG/AVI1 to JPEG/JFIF bitstream filter
338 - ASS subtitle encoder and decoder
339 - IEC 61937 encapsulation for E-AC-3, TrueHD, DTS-HD (for HDMI passthrough)
340 - overlay filter added
341 - rename aspect filter to setdar, and pixelaspect to setsar
343 - Mobotix .mxg demuxer
344 - frei0r source added
345 - hqdn3d filter added
346 - RTP depacketization of QCELP
348 - gradfun filter added
350 - replace the ocv_smooth filter with a more generic ocv filter
351 - Windows Televison (WTV) demuxer
352 - FFmpeg metadata format muxer and demuxer
353 - SubRip (srt) subtitle decoder
354 - floating-point AC-3 encoder added
356 - ffmpeg -copytb option added
358 - Wing Commander IV movies decoder added
360 - Bink version 'b' audio and video decoder
361 - Bitmap Brothers JV playback system
362 - Apple HTTP Live Streaming protocol handler
363 - sndio support for playback and record
364 - Linux framebuffer input device added
365 - Chronomaster DFA decoder
366 - Mobotix MxPEG decoder
367 - AAC encoding via libvo-aacenc
368 - AMR-WB encoding via libvo-amrwbenc
370 - fieldorder video filter added
375 - PB-frame decoding for H.263
376 - deprecated vhook subsystem removed
377 - deprecated old scaler removed
379 - Alpha channel scaler
381 - RTP packetization of H.263
382 - RTP packetization of AMR
383 - RTP depacketization of Vorbis
384 - CorePNG decoding support
385 - Cook multichannel decoding support
386 - introduced avlanguage helpers in libavformat
387 - 8088flex TMV demuxer and decoder
388 - per-stream language-tags extraction in asfdec
389 - V210 decoder and encoder
390 - remaining GPL parts in AC-3 decoder converted to LGPL
392 - SoX native format muxer and demuxer
393 - AMR-NB decoding/encoding, AMR-WB decoding via OpenCORE libraries
395 - Electronic Arts Madcow decoder
396 - DivX (XSUB) subtitle encoder
397 - nonfree libamr support for AMR-NB/WB decoding/encoding removed
398 - experimental AAC encoder
399 - RTP depacketization of ASF and RTSP from WMS servers
400 - RTMP support in libavformat
401 - noX handling for OPT_BOOL X options
403 - IEC-61937 compatible Muxer
405 - Bluray (PGS) subtitle decoder
406 - LPCM support in MPEG-TS (HDMV RID as found on Blu-ray disks)
408 - Core Audio Format demuxer
410 - MD STUDIO audio demuxer
411 - RF64 support in WAV demuxer
412 - MPEG-4 Audio Lossless Coding (ALS) decoder
413 - -formats option split into -formats, -codecs, -bsfs, and -protocols
415 - CDG demuxer and decoder
417 - Auravision Aura 1 and 2 decoders
418 - Deluxe Paint Animation playback system
420 - Adobe Filmstrip muxer and demuxer
421 - RTP depacketization of H.263
422 - Bink demuxer and audio/video decoders
423 - enable symbol versioning by default for linkers that support it
424 - IFF PBM/ILBM bitmap decoder
427 - RTP depacketization of AMR
433 - Kega Game Video (KGV1) decoder
434 - VorbisComment writing for FLAC, Ogg FLAC and Ogg Speex files
435 - RTP depacketization of Theora
436 - HTTP Digest authentication
437 - RTMP/RTMPT/RTMPS/RTMPE/RTMPTE protocol support via librtmp
438 - Psygnosis YOP demuxer and video decoder
439 - spectral extension support in the E-AC-3 decoder
440 - unsharp video filter
441 - RTP hinting in the mov/3gp/mp4 muxer
442 - Dirac in Ogg demuxing
443 - seek to keyframes in Ogg
444 - 4:2:2 and 4:4:4 Theora decoding
445 - 35% faster VP3/Theora decoding
446 - faster AAC decoding
447 - faster H.264 decoding
448 - RealAudio 1.0 (14.4K) encoder
453 - DV50 AKA DVCPRO50 encoder, decoder, muxer and demuxer
454 - TechSmith Camtasia (TSCC) video decoder
455 - IBM Ultimotion (ULTI) video decoder
456 - Sierra Online audio file demuxer and decoder
457 - Apple QuickDraw (qdrw) video decoder
458 - Creative ADPCM audio decoder (16 bits as well as 8 bits schemes)
459 - Electronic Arts Multimedia (WVE/UV2/etc.) file demuxer
460 - Miro VideoXL (VIXL) video decoder
461 - H.261 video encoder
463 - Nullsoft Video (NSV) file demuxer
464 - Shorten audio decoder
466 - Apple Lossless Audio Codec (ALAC) decoder
467 - Winnov WNV1 video decoder
468 - Autodesk Animator Studio Codec (AASC) decoder
469 - Indeo 2 video decoder
470 - Fraps FPS1 video decoder
471 - Snow video encoder/decoder
472 - Sonic audio encoder/decoder
473 - Vorbis audio decoder
474 - Macromedia ADPCM decoder
475 - Duck TrueMotion 2 video decoder
476 - support for decoding FLX and DTA extensions in FLIC files
477 - H.264 custom quantization matrices support
478 - ffserver fixed, it should now be usable again
480 - Real Cooker audio decoder
481 - TrueSpeech audio decoder
482 - WMA2 audio decoder fixed, now all files should play correctly
483 - RealAudio 14.4 and 28.8 decoders fixed
485 - build system improvements
486 - tabs and trailing whitespace removed from the codebase
487 - CamStudio video decoder
488 - AIFF/AIFF-C audio format, encoding and decoding
489 - ADTS AAC file reading and writing
490 - Creative VOC file reading and writing
491 - American Laser Games multimedia (*.mm) playback system
492 - Zip Motion Blocks Video decoder
493 - improved Theora/VP3 decoder
494 - True Audio (TTA) decoder
495 - AVS demuxer and video decoder
497 - Smacker demuxer and decoder
498 - NuppelVideo/MythTV demuxer and RTjpeg decoder
500 - MPEG-2 intra VLC support
501 - MPEG-2 4:2:2 encoder
502 - Flash Screen Video decoder
504 - Chinese AVS decoder
507 - VC-1/WMV3/WMV9 video decoder
510 - VMware video decoder
513 - WavPack lossless audio decoder
514 - Targa (.TGA) picture decoder
515 - Vorbis audio encoder
516 - Delphine Software .cin demuxer/audio and video decoder
517 - Tiertex .seq demuxer/video decoder
519 - TIFF picture encoder and decoder
520 - GIF picture decoder
521 - Intel Music Coder decoder
522 - Zip Motion Blocks Video encoder
524 - Flash Screen Video encoder
525 - Theora encoding via libtheora
528 - GSM-MS encoder and decoder
530 - DXA demuxer and decoder
532 - Gamecube movie (.THP) playback system
533 - Blackfin optimizations
534 - Interplay C93 demuxer and video decoder
535 - Bethsoft VID demuxer and video decoder
538 - V.Flash PTX decoder
539 - RoQ muxer, RoQ audio encoder
540 - Renderware TXD demuxer and decoder
541 - extern C declarations for C++ removed from headers
542 - sws_flags command line option
546 - OS/2 support removed and restored again
549 - additional SPARC (VIS) optimizations
551 - slice-based parallel H.264 decoding
552 - Monkey's Audio demuxer and decoder
553 - AMV audio and video decoder
555 - H.264 PAFF decoding
556 - Nellymoser ASAO decoder
557 - Beam Software SIFF demuxer and decoder
558 - libvorbis Vorbis decoding removed in favor of native decoder
559 - IntraX8 (J-Frame) subdecoder for WMV2 and VC-1
560 - Ogg (Theora, Vorbis and FLAC) muxer
561 - The "device" muxers and demuxers are now in a new libavdevice library
562 - PC Paintbrush PCX decoder
563 - Sun Rasterfile decoder
564 - TechnoTrend PVA demuxer
565 - Linux Media Labs MPEG-4 (LMLM4) demuxer
566 - AVM2 (Flash 9) SWF muxer
567 - QT variant of IMA ADPCM encoder
569 - iPod/iPhone compatible mp4 muxer
571 - MSN TCP Webcam stream demuxer
572 - RL2 demuxer / decoder
575 - non-recursive Makefiles
577 - MAXIS EA XA (.xa) demuxer / decoder
581 - Electronic Arts CMV decoder
582 - Motion Pixels Video decoder
583 - Motion Pixels MVI demuxer
584 - removed animated GIF decoder/demuxer
585 - D-Cinema audio muxer
586 - Electronic Arts TGV decoder
587 - Apple Lossless Audio Codec (ALAC) encoder
589 - floating point PCM encoder/decoder
591 - DV100 AKA DVCPRO HD decoder and demuxer
592 - E-AC-3 support added to AC-3 decoder
593 - Nellymoser ASAO encoder
594 - ASS and SSA demuxer and muxer
595 - liba52 wrapper removed
596 - SVQ3 watermark decoding support
597 - Speex decoding via libspeex
598 - Electronic Arts TGQ decoder
600 - QCELP / PureVoice decoder
602 - hybrid WavPack support
603 - R3D REDCODE demuxer
604 - ALSA support for playback and record
605 - Electronic Arts TQI decoder
606 - OpenJPEG based JPEG 2000 decoder
607 - NC (NC4600) camera file demuxer
608 - Gopher client support
610 - generic metadata API
615 - DV encoder, DV muxer
616 - Microsoft RLE video decoder
617 - Microsoft Video-1 decoder
618 - Apple Animation (RLE) decoder
619 - Apple Graphics (SMC) decoder
620 - Apple Video (RPZA) decoder
622 - Sega FILM (CPK) file demuxer
623 - Westwood multimedia support (VQA & AUD files)
624 - Id Quake II CIN playback support
626 - FLIC playback support
627 - RealVideo 2.0 (RV20) decoder
628 - Duck TrueMotion v1 (DUCK) video decoder
629 - Sierra VMD demuxer and video decoder
630 - MSZH and ZLIB decoder support
634 - rate distortion optimal cbp support
635 - rate distorted optimal ac prediction for MPEG-4
636 - rate distorted optimal lambda->qp support
637 - AAC encoding with libfaac
638 - Sunplus JPEG codec (SP5X) support
639 - use Lagrange multipler instead of QP for ratecontrol
640 - Theora/VP3 decoding support
641 - XA and ADX ADPCM codecs
642 - export MPEG-2 active display area / pan scan
643 - Add support for configuring with IBM XLC
644 - floating point AAN DCT
645 - initial support for zygo video (not complete)
647 - new audio/video parser API
649 - av_read_frame() and av_seek_frame() support
650 - missing last frame fixes
651 - seek by mouse in ffplay
652 - noise reduction of DCT coefficients
653 - H.263 OBMC & 4MV support
654 - H.263 alternative inter vlc support
656 - H.263 slice structured mode
657 - interlaced DCT support for MPEG-2 encoding
658 - stuffing to stay above min_bitrate
659 - MB type & QP visualization
660 - frame stepping for ffplay
661 - interlaced motion estimation
662 - alternate scantable support
663 - SVCD scan offset support
666 - quantizer noise shaping
667 - G.726 ADPCM audio codec
669 - multithreaded/SMP motion estimation
670 - multithreaded/SMP encoding for MPEG-1/MPEG-2/MPEG-4/H.263
671 - multithreaded/SMP decoding for MPEG-2
673 - Metrowerks CodeWarrior suppport
674 - H.263+ custom pcf support
675 - nicer output for 'ffmpeg -formats'
677 - SGI image format, encoding and decoding
678 - H.264 loop filter support
679 - H.264 CABAC support
680 - nicer looking arrows for the motion vector visualization
681 - improved VCD support
682 - audio timestamp drift compensation
683 - MPEG-2 YUV 422/444 support
684 - polyphase kaiser windowed sinc and blackman nuttall windowed sinc audio resample
685 - better image scaling
687 - correctly interleave packets during encoding
688 - VIS optimized motion compensation
689 - intra_dc_precision>0 encoding support
690 - support reuse of motion vectors/MB types/field select values of the source video
691 - more accurate deblock filter
693 - many optimizations and bugfixes
694 - FunCom ISS audio file demuxer and according ADPCM decoding
699 - MPEG-2 video encoding (Michael)
700 - Id RoQ playback subsystem (Mike Melanson and Tim Ferguson)
701 - Wing Commander III Movie (.mve) file playback subsystem (Mike Melanson
703 - Xan DPCM audio decoder (Mario Brito)
704 - Interplay MVE playback subsystem (Mike Melanson)
705 - Duck DK3 and DK4 ADPCM audio decoders (Mike Melanson)
710 - RealAudio 1.0 (14_4) and 2.0 (28_8) native decoders. Author unknown, code from mplayerhq
711 (originally from public domain player for Amiga at http://www.honeypot.net/audio)
712 - current version now also compiles with older GCC (Fabrice)
713 - 4X multimedia playback system including 4xm file demuxer (Mike
714 Melanson), and 4X video and audio codecs (Michael)
715 - Creative YUV (CYUV) decoder (Mike Melanson)
716 - FFV1 codec (our very simple lossless intra only codec, compresses much better
717 than HuffYUV) (Michael)
718 - ASV1 (Asus), H.264, Intel indeo3 codecs have been added (various)
719 - tiny PNG encoder and decoder, tiny GIF decoder, PAM decoder (PPM with
720 alpha support), JPEG YUV colorspace support. (Fabrice Bellard)
721 - ffplay has been replaced with a newer version which uses SDL (optionally)
722 for multiplatform support (Fabrice)
723 - Sorenson Version 3 codec (SVQ3) support has been added (decoding only) - donated
725 - AMR format has been added (Johannes Carlsson)
726 - 3GP support has been added (Johannes Carlsson)
727 - VP3 codec has been added (Mike Melanson)
728 - more MPEG-1/2 fixes
729 - better multiplatform support, MS Visual Studio fixes (various)
730 - AltiVec optimizations (Magnus Damn and others)
731 - SH4 processor support has been added (BERO)
732 - new public interfaces (avcodec_get_pix_fmt) (Roman Shaposhnick)
733 - VOB streaming support (Brian Foley)
734 - better MP3 autodetection (Andriy Rysin)
735 - qpel encoding (Michael)
736 - 4mv+b frames encoding finally fixed (Michael)
737 - chroma ME (Michael)
738 - 5 comparison functions for ME (Michael)
739 - B-frame encoding speedup (Michael)
740 - WMV2 codec (unfinished - Michael)
741 - user specified diamond size for EPZS (Michael)
742 - Playstation STR playback subsystem, still experimental (Mike and Michael)
743 - ASV2 codec (Michael)
744 - CLJR decoder (Alex)
746 .. And lots more new enhancements and fixes.
751 - completely new integer only MPEG audio layer 1/2/3 decoder rewritten
753 - Recoded DCT and motion vector search with gcc (no longer depends on nasm)
754 - fix quantization bug in AC3 encoder
755 - added PCM codecs and format. Corrected WAV/AVI/ASF PCM issues
756 - added prototype ffplay program
757 - added GOB header parsing on H.263/H.263+ decoder (Juanjo)
758 - bug fix on MCBPC tables of H.263 (Juanjo)
759 - bug fix on DC coefficients of H.263 (Juanjo)
760 - added Advanced Prediction Mode on H.263/H.263+ decoder (Juanjo)
761 - now we can decode H.263 streams found in QuickTime files (Juanjo)
762 - now we can decode H.263 streams found in VIVO v1 files(Juanjo)
763 - preliminary RTP "friendly" mode for H.263/H.263+ coding. (Juanjo)
764 - added GOB header for H.263/H.263+ coding on RTP mode (Juanjo)
765 - now H.263 picture size is returned on the first decoded frame (Juanjo)
766 - added first regression tests
767 - added MPEG-2 TS demuxer
768 - new demux API for libav
769 - more accurate and faster IDCT (Michael)
770 - faster and entropy-controlled motion search (Michael)
771 - two pass video encoding (Michael)
772 - new video rate control (Michael)
773 - added MSMPEG4V1, MSMPEGV2 and WMV1 support (Michael)
774 - great performance improvement of video encoders and decoders (Michael)
775 - new and faster bit readers and vlc parsers (Michael)
776 - high quality encoding mode: tries all macroblock/VLC types (Michael)
777 - added DV video decoder
778 - preliminary RTP/RTSP support in ffserver and libavformat
779 - H.263+ AIC decoding/encoding support (Juanjo)
780 - VCD MPEG-PS mode (Juanjo)
781 - PSNR stuff (Juanjo)
782 - simple stats output (Juanjo)
783 - 16-bit and 15-bit RGB/BGR/GBR support (Bisqwit)
788 - some header fixes (Zdenek Kabelac <kabi at informatics.muni.cz>)
789 - many MMX optimizations (Nick Kurshev <nickols_k at mail.ru>)
790 - added configure system (actually a small shell script)
791 - added MPEG audio layer 1/2/3 decoding using LGPL'ed mpglib by
792 Michael Hipp (temporary solution - waiting for integer only
794 - fixed VIDIOCSYNC interrupt
795 - added Intel H.263 decoding support ('I263' AVI fourCC)
796 - added Real Video 1.0 decoding (needs further testing)
797 - simplified image formats again. Added PGM format (=grey
798 pgm). Renamed old PGM to PGMYUV.
799 - fixed msmpeg4 slice issues (tell me if you still find problems)
800 - fixed OpenDivX bugs with newer versions (added VOL header decoding)
801 - added support for MPlayer interface
802 - added macroblock skip optimization
803 - added MJPEG decoder
804 - added mmx/mmxext IDCT from libmpeg2
805 - added pgmyuvpipe, ppm, and ppm_pipe formats (original patch by Celer
806 <celer at shell.scrypt.net>)
807 - added pixel format conversion layer (e.g. for MJPEG or PPM)
808 - added deinterlacing option
810 - MPEG-4 vol header fixes (Jonathan Marsden <snmjbm at pacbell.net>)
811 - ARM optimizations (Lionel Ulmer <lionel.ulmer at free.fr>).
812 - Windows porting of file converter
813 - added MJPEG raw format (input/ouput)
814 - added JPEG image format support (input/output)
819 - fixed some std header definitions (Bjorn Lindgren
820 <bjorn.e.lindgren at telia.com>).
821 - added MPEG demuxer (MPEG-1 and 2 compatible).
823 - added prototype RM demuxer
824 - added AC3 decoding (done with libac3 by Aaron Holtzman)
825 - added decoding codec parameter guessing (.e.g. for MPEG, because the
826 header does not include them)
827 - fixed header generation in MPEG-1, AVI and ASF muxer: wmplayer can now
828 play them (only tested video)
829 - fixed H.263 white bug
830 - fixed phase rounding in img resample filter
831 - add MMX code for polyphase img resample filter
832 - added CPU autodetection
833 - added generic title/author/copyright/comment string handling (ASF and RM
835 - added SWF demux to extract MP3 track (not usable yet because no MP3
837 - added fractional frame rate support
838 - codecs are no longer searched by read_header() (should fix ffserver
844 - BGR24 patch (initial patch by Jeroen Vreeken <pe1rxq at amsat.org>)
845 - fixed raw yuv output
846 - added motion rounding support in MPEG-4
847 - fixed motion bug rounding in MSMPEG4
848 - added B-frame handling in video core
849 - added full MPEG-1 decoding support
850 - added partial (frame only) MPEG-2 support
851 - changed the FOURCC code for H.263 to "U263" to be able to see the
852 +AVI/H.263 file with the UB Video H.263+ decoder. MPlayer works with
853 this +codec ;) (JuanJo).
854 - Halfpel motion estimation after MB type selection (JuanJo)
855 - added pgm and .Y.U.V output format
856 - suppressed 'img:' protocol. Simply use: /tmp/test%d.[pgm|Y] as input or
858 - added pgmpipe I/O format (original patch from Martin Aumueller
859 <lists at reserv.at>, but changed completely since we use a format
860 instead of a protocol)
865 - added H.263/MPEG-4/MSMPEG4 decoding support. MPEG-4 decoding support
866 (for OpenDivX) is almost complete: 8x8 MVs and rounding are
867 missing. MSMPEG4 support is complete.
868 - added prototype MPEG-1 decoder. Only I- and P-frames handled yet (it
869 can decode ffmpeg MPEGs :-)).
870 - added libavcodec API documentation (see apiexample.c).
871 - fixed image polyphase bug (the bottom of some images could be
873 - added support for non clipped motion vectors (decoding only)
874 and image sizes non-multiple of 16
875 - added support for AC prediction (decoding only)
876 - added file overwrite confirmation (can be disabled with -y)
877 - added custom size picture to H.263 using H.263+ (Juanjo)
882 - added MSMPEG4 (aka DivX) compatible encoder. Changed default codec
883 of AVI and ASF to DIV3.
884 - added -me option to set motion estimation method
885 (default=log). suppressed redundant -hq option.
886 - added options -acodec and -vcodec to force a given codec (useful for
889 - improved dct_quantize speed
890 - factorized some motion estimation code
895 - removing grab code from ffserver and moved it to ffmpeg. Added
896 multistream support to ffmpeg.
897 - added timeshifting support for live feeds (option ?date=xxx in the
899 - added high quality image resize code with polyphase filter (need
900 mmx/see optimization). Enable multiple image size support in ffserver.
901 - added multi live feed support in ffserver
902 - suppressed master feature from ffserver (it should be done with an
903 external program which opens the .ffm url and writes it to another
905 - added preliminary support for video stream parsing (WAV and AVI half
906 done). Added proper support for audio/video file conversion in
908 - added preliminary support for video file sending from ffserver
909 - redesigning I/O subsystem: now using URL based input and output
911 - added WAV format support
912 - added "tty user interface" to ffmpeg to stop grabbing gracefully
913 - added MMX/SSE optimizations to SAD (Sums of Absolutes Differences)
914 (Juan J. Sierralta P. a.k.a. "Juanjo" <juanjo at atmlab.utfsm.cl>)
915 - added MMX DCT from mpeg2_movie 1.5 (Juanjo)
916 - added new motion estimation algorithms, log and phods (Juanjo)
917 - changed directories: libav for format handling, libavcodec for
923 - added stereo in MPEG audio encoder
928 - added 'high quality' mode which use motion vectors. It can be used in
929 real time at low resolution.
930 - fixed rounding problems which caused quality problems at high
931 bitrates and large GOP size
934 version 0.3.2: small fixes
940 version 0.3.1: added avi/divx support
943 - added MPEG-4 codec compatible with OpenDivX. It is based on the H.263 codec
944 - added sound for flash format (not tested)
947 version 0.3: initial public release