1 Entries are sorted chronologically from oldest to youngest within each release,
2 releases are sorted from youngest to oldest.
5 - aliases and defaults for Ogg subtypes (opus, spx)
6 - HEVC/H.265 RTP payload format (draft v6) packetizer and depacketizer
7 - avplay now exits by default at the end of playback
8 - XCB-based screen-grabber
9 - creating DASH compatible fragmented MP4, MPEG-DASH segmenting muxer
10 - H.261 RTP payload format (RFC 4587) depacketizer and experimental packetizer
13 - OpenH264 encoder wrapper
14 - Support DNx100 (960x720@8)
15 - DXVA2-accelerated HEVC decoding
16 - AAC ELD 480 decoding
17 - Intel QSV-accelerated H.264 decoding
18 - DSS SP decoder and DSS demuxer
19 - RTP depacketizer for AC3 payload format (RFC 4184)
20 - RTP depacketizer for loss tolerant payload format for MP3 audio (RFC 5219)
21 - RTP depacketizer for DV (RFC 6469)
27 - shuffleplanes filter
28 - replaygain data export
29 - Alias PIX image encoder and decoder
30 - BRender PIX image decoder
31 - Amazing Studio PAF playback support
33 - BMP standalone parser
34 - OpenEXR image decoder
35 - support encoding and decoding 4-channel SGI images
36 - support decoding 16-bit RLE SGI images
38 - LucasArts SMUSH SANM video decoder
39 - LucasArts SMUSH VIMA audio decoder (ADPCM)
40 - LucasArts SMUSH demuxer
41 - MP2 encoding via TwoLAME
43 - Silicon Graphics RLE 8-bit video decoder
44 - Silicon Graphics Motion Video Compressor 1 & 2 decoder
45 - Silicon Graphics Movie demuxer
46 - On2 AVC (Audio for Video) decoder
47 - support for decoding through DXVA2 in avconv
48 - libbs2b-based stereo-to-binaural audio filter
50 - display matrix export and rotation API
51 - drop avserver, it was unmaintained for years and largely broken
53 - request Icecast metadata by default
54 - support for using metadata in stream specifiers in avtools
60 - support ID3v2 tags in ASF files
61 - reference-counting for AVFrame and AVPacket data
62 - avconv now fails when input options are used for output file
64 - avconv options -filter_script and -filter_complex_script, which allow a
65 filtergraph description to be read from a file
66 - uniform options syntax across all filters
69 - asetpts filter (same as setpts, but for audio)
70 - trim and atrim filters
71 - avconv -t and -ss (output-only) options are now sample-accurate when
73 - Matroska muxer can now put the index at the beginning of the file.
74 - avconv -deinterlace option removed, the yadif filter should be used instead
75 - Apple Intermediate Codec decoder
76 - Escape 130 video decoder
77 - support for slice multithreading in libavfilter
78 - VC-1 interlaced B-frame support
79 - support for WavPack muxing (raw and in Matroska)
81 - WavPack encoding through libwavpack
82 - Added the -n parameter to avconv
84 - when transcoding with avconv (i.e. not streamcopying), -ss is now accurate
85 even when used as an input option. Previous behavior can be restored with
86 the -noaccurate_seek option.
87 - avconv -t option can now be used for inputs, to limit the duration of
88 data read from an input file
89 - Voxware MetaSound decoder
91 - Error Resilient AAC syntax (ER AAC LC) decoding
92 - Low Delay AAC (ER AAC LD) decoding
93 - mux chapters in ASF files
94 - Opus in Ogg demuxing
95 - Enhanced Low Delay AAC (ER AAC ELD) decoding (no LD SBR support)
97 - HNM version 4 demuxer and video decoder
99 - raw HEVC, HEVC in MOV/MP4, HEVC in Matroska, HEVC in MPEG-TS demuxing
100 - remove avplay -vismv option, which has not worked for a long time
102 - setsar/setdar filters now support variables in ratio expressions
103 - dar variable in the scale filter now returns the actual DAR (i.e. a * sar)
105 - support for decoding through VDPAU in avconv (the -hwaccel option)
106 - remove mp3_header_(de)compress bitstream filters
107 - stereoscopic 3d metadata handling
108 - png standalone parser
109 - WebP encoding via libwebp
112 - Mirillis FIC video decoder
114 - compand audio filter
118 - av_basename and av_dirname
119 - adobe and limelight publisher authentication in RTMP
120 - VDPAU hardware acceleration through normal hwaccel
125 - ashowinfo audio filter
126 - 24-bit FLAC encoding
127 - audio volume filter
128 - deprecated the avconv -vol option. the volume filter is to be used instead.
129 - multi-channel ALAC encoding up to 7.1
130 - TAK demuxer, parser, and decoder
131 - adaptive frame-level multithreading for H.264
135 - metadata (INFO tag) support in WAV muxer
136 - support for building DLLs using MSVC
137 - remove avserver daemon mode
138 - support building on the Plan 9 operating system
139 - ffv1: support version 1.3
144 - XWD encoder and decoder
145 - Support for fragmentation in the mov/mp4 muxer
146 - ISMV (Smooth Streaming) muxer
147 - CDXL demuxer and decoder
148 - Apple ProRes encoder
149 - Sun Rasterfile Encoder
151 - ID3v2 attached pictures reading and writing
152 - WMA Lossless decoder
154 - RealAudio Lossless decoder
156 - drop support for avconv without libavfilter
157 - add libavresample audio conversion library
158 - audio filters support in libavfilter and avconv
162 - avprobe output is now standard INI or JSON. The old format can still
163 be used with -of old.
164 - Indeo Audio decoder
165 - channelsplit audio filter
166 - RTMPT protocol support
167 - iLBC encoding/decoding via libilbc
168 - Microsoft Screen 1 decoder
170 - audio channel mapping filter
171 - Microsoft ATC Screen decoder
173 - TechSmith Screen Codec 2 decoder
174 - AAC encoding via libfdk-aac
175 - Microsoft Expression Encoder Screen decoder
176 - RTMPS protocol support
177 - RTMPTS protocol support
178 - JPEG 2000 encoding support through OpenJPEG
179 - G.723.1 demuxer and decoder
180 - RTMPE protocol support
181 - RTMPTE protocol support
182 - Canopus Lossless Codec decoder
183 - avconv -shortest option is now per-output file,
184 -pass and -passlogfile are now per-output stream
186 - Microsoft Screen 2 decoder
187 - RTP depacketization of JPEG
188 - Smooth Streaming live segmenter muxer
189 - RTP packetization of JPEG
190 - Opus decoder and encoder using libopus
191 - remove -same_quant, it hasn't worked for years
192 - support for building with MSVC
203 - Automatic thread count based on detection number of (available) CPU cores
204 - Deprecate libpostproc. If desired, the switch --enable-postproc will
205 enable it but it may be removed in a later Libav release.
206 - rv34: frame-level multi-threading
207 - optimized iMDCT transform on x86 using SSE for for mpegaudiodec
213 - Flash Screen Video 2 decoder
214 - ffplay/ffprobe/ffserver renamed to avplay/avprobe/avserver
215 - ffmpeg deprecated, added avconv, which is almost the same for now, except
216 for a few incompatible changes in the options, which will hopefully make them
217 easier to use. The changes are:
218 * The options placement is now strictly enforced! While in theory the
219 options for ffmpeg should be given in [input options] -i INPUT [output
220 options] OUTPUT order, in practice it was possible to give output options
221 before the -i and it mostly worked. Except when it didn't - the behavior was
222 a bit inconsistent. In avconv, it is not possible to mix input and output
223 options. All non-global options are reset after an input or output filename.
224 * All per-file options are now truly per-file - they apply only to the next
225 input or output file and specifying different values for different files
226 will now work properly (notably -ss and -t options).
227 * All per-stream options are now truly per-stream - it is possible to
228 specify which stream(s) should a given option apply to. See the Stream
229 specifiers section in the avconv manual for details.
230 * In ffmpeg some options (like -newvideo/-newaudio/...) are irregular in the
231 sense that they're specified after the output filename instead of before,
232 like all other options. In avconv this irregularity is removed, all options
233 apply to the next input or output file.
234 * -newvideo/-newaudio/-newsubtitle options were removed. Not only were they
235 irregular and highly confusing, they were also redundant. In avconv the -map
236 option will create new streams in the output file and map input streams to
237 them. E.g. avconv -i INPUT -map 0 OUTPUT will create an output stream for
238 each stream in the first input file.
239 * The -map option now has slightly different and more powerful syntax:
240 + Colons (':') are used to separate file index/stream type/stream index
241 instead of dots. Comma (',') is used to separate the sync stream instead
242 of colon.. This is done for consistency with other options.
243 + It's possible to specify stream type. E.g. -map 0:a:2 creates an
244 output stream from the third input audio stream.
245 + Omitting the stream index now maps all the streams of the given type,
246 not just the first. E.g. -map 0:s creates output streams for all the
247 subtitle streams in the first input file.
248 + Since -map can now match multiple streams, negative mappings were
249 introduced. Negative mappings disable some streams from an already
250 defined map. E.g. '-map 0 -map -0:a:1' means 'create output streams for
251 all the stream in the first input file, except for the second audio
253 * There is a new option -c (or -codec) for choosing the decoder/encoder to
254 use, which allows to precisely specify target stream(s) consistently with
255 other options. E.g. -c:v lib264 sets the codec for all video streams, -c:a:0
256 libvorbis sets the codec for the first audio stream and -c copy copies all
257 the streams without reencoding. Old -vcodec/-acodec/-scodec options are now
259 * It is now possible to precisely specify which stream should an AVOption
260 apply to. E.g. -b:v:0 2M sets the bitrate for the first video stream, while
261 -b:a 128k sets the bitrate for all audio streams. Note that the old -ab 128k
262 syntax is deprecated and will stop working soon.
263 * -map_chapters now takes only an input file index and applies to the next
264 output file. This is consistent with how all the other options work.
265 * -map_metadata now takes only an input metadata specifier and applies to
266 the next output file. Output metadata specifier is now part of the option
267 name, similarly to the AVOptions/map/codec feature above.
268 * -metadata can now be used to set metadata on streams and chapters, e.g.
269 -metadata:s:1 language=eng sets the language of the first stream to 'eng'.
270 This made -vlang/-alang/-slang options redundant, so they were removed.
271 * -qscale option now uses stream specifiers and applies to all streams, not
272 just video. I.e. plain -qscale number would now apply to all streams. To get
273 the old behavior, use -qscale:v. Also there is now a shortcut -q for -qscale
274 and -aq is now an alias for -q:a.
275 * -vbsf/-absf/-sbsf options were removed and replaced by a -bsf option which
276 uses stream specifiers. Use -bsf:v/a/s instead of the old options.
277 * -itsscale option now uses stream specifiers, so its argument is only the
279 * -intra option was removed, use -g 0 for the same effect.
280 * -psnr option was removed, use -flags +psnr for the same effect.
281 * -vf option is now an alias to the new -filter option, which uses stream specifiers.
282 * -vframes/-aframes/-dframes options are now aliases to the new -frames option.
283 * -vtag/-atag/-stag options are now aliases to the new -tag option.
285 - Windows Media Image decoder
289 - libcdio-paranoia input device for audio CD grabbing
291 - Apple ProRes decoder
292 - CELT in Ogg demuxing
293 - VC-1 interlaced decoding
294 - lut, lutrgb, and lutyuv filters
297 - Speex encoding via libspeex
298 - 4:2:2 H.264 decoding support
299 - 4:2:2 and 4:4:4 H.264 encoding with libx264
300 - Pulseaudio input device
301 - replacement Indeo 3 decoder
302 - TLS/SSL and HTTPS protocol support
303 - AVOptions API rewritten and documented
304 - most of CODEC_FLAG2_*, some CODEC_FLAG_* and many codec-specific fields in
305 AVCodecContext deprecated. Codec private options should be used instead.
306 - Properly working defaults in libx264 wrapper, support for native presets.
307 - Encrypted OMA files support
308 - Discworld II BMV decoding support
310 - OS X Video Decoder Acceleration (VDA) support
311 - CRI ADX audio format muxer and demuxer
312 - Playstation Portable PMP format demuxer
313 - PCM format support in OMA demuxer
315 - Dxtory capture format decoder
316 - v410 QuickTime uncompressed 4:4:4 10-bit encoder and decoder
318 - Simple segmenting muxer
325 - E-AC-3 audio encoder
326 - ac3enc: add channel coupling support
327 - floating-point sample format support for (E-)AC-3, DCA, AAC, Vorbis decoders
328 - H.264/MPEG frame-level multithreading
329 - av_metadata_* functions renamed to av_dict_* and moved to libavutil
330 - 4:4:4 H.264 decoding support
331 - 10-bit H.264 optimizations for x86
332 - bump libswscale for recently reported ABI break
337 - VP8 frame-level multithreading
338 - NEON optimizations for VP8
339 - removed a lot of deprecated API cruft
340 - FFT and IMDCT optimizations for AVX (Sandy Bridge) processors
342 - SMPTE 302M AES3 audio decoder
343 - ffmpeg no longer quits after the 'q' key is pressed; use 'ctrl+c' instead
344 - 9bit and 10bit per sample support in the H.264 decoder
349 - WebM support in Matroska de/muxer
350 - low overhead Ogg muxing
352 - VP8 de/encoding via libvpx
353 - Demuxer for On2's IVF format
354 - Pictor/PC Paint decoder
356 - libfaad2 wrapper removed
357 - DTS-ES extension (XCh) decoding support
359 - RTSP tunneling over HTTP
360 - RTP depacketization of SVQ3
361 - -strict inofficial replaced by -strict unofficial
362 - ffplay -exitonkeydown and -exitonmousedown options added
363 - native GSM / GSM MS decoder
364 - RTP depacketization of QDM2
365 - ANSI/ASCII art playback system
366 - Lego Mindstorms RSO de/muxer
367 - SubRip subtitle file muxer and demuxer
368 - Chinese AVS encoding via libxavs
369 - ffprobe -show_packets option added
370 - RTP packetization of Theora and Vorbis
371 - RTP depacketization of MP4A-LATM
372 - RTP packetization and depacketization of VP8
374 - Apple HTTP Live Streaming demuxer
377 - G.722 ADPCM audio encoder/decoder
380 - frei0r wrapper filter
381 - change crop filter syntax to width:height:x:y
382 - make the crop filter accept parametric expressions
383 - make ffprobe accept AVFormatContext options
386 - Demuxer for Leitch/Harris' VR native stream format (LXF)
387 - RTP depacketization of the X-QT QuickTime format
388 - SAP (Session Announcement Protocol, RFC 2974) muxer and demuxer
390 - ffmpeg -crop* options removed
391 - transpose filter added
392 - ffmpeg -force_key_frames option added
393 - demuxer for receiving raw rtp:// URLs without an SDP description
394 - single stream LATM/LOAS decoder
395 - setpts filter added
396 - Win64 support for optimized x86 assembly functions
397 - MJPEG/AVI1 to JPEG/JFIF bitstream filter
398 - ASS subtitle encoder and decoder
399 - IEC 61937 encapsulation for E-AC-3, TrueHD, DTS-HD (for HDMI passthrough)
400 - overlay filter added
401 - rename aspect filter to setdar, and pixelaspect to setsar
403 - Mobotix .mxg demuxer
404 - frei0r source added
405 - hqdn3d filter added
406 - RTP depacketization of QCELP
408 - gradfun filter added
410 - replace the ocv_smooth filter with a more generic ocv filter
411 - Windows Televison (WTV) demuxer
412 - FFmpeg metadata format muxer and demuxer
413 - SubRip (srt) subtitle decoder
414 - floating-point AC-3 encoder added
416 - ffmpeg -copytb option added
418 - Wing Commander IV movies decoder added
420 - Bink version 'b' audio and video decoder
421 - Bitmap Brothers JV playback system
422 - Apple HTTP Live Streaming protocol handler
423 - sndio support for playback and record
424 - Linux framebuffer input device added
425 - Chronomaster DFA decoder
426 - Mobotix MxPEG decoder
427 - AAC encoding via libvo-aacenc
428 - AMR-WB encoding via libvo-amrwbenc
430 - fieldorder video filter added
435 - PB-frame decoding for H.263
436 - deprecated vhook subsystem removed
437 - deprecated old scaler removed
439 - Alpha channel scaler
441 - RTP packetization of H.263
442 - RTP packetization of AMR
443 - RTP depacketization of Vorbis
444 - CorePNG decoding support
445 - Cook multichannel decoding support
446 - introduced avlanguage helpers in libavformat
447 - 8088flex TMV demuxer and decoder
448 - per-stream language-tags extraction in asfdec
449 - V210 decoder and encoder
450 - remaining GPL parts in AC-3 decoder converted to LGPL
452 - SoX native format muxer and demuxer
453 - AMR-NB decoding/encoding, AMR-WB decoding via OpenCORE libraries
455 - Electronic Arts Madcow decoder
456 - DivX (XSUB) subtitle encoder
457 - nonfree libamr support for AMR-NB/WB decoding/encoding removed
458 - experimental AAC encoder
459 - RTP depacketization of ASF and RTSP from WMS servers
460 - RTMP support in libavformat
461 - noX handling for OPT_BOOL X options
463 - IEC-61937 compatible Muxer
465 - Bluray (PGS) subtitle decoder
466 - LPCM support in MPEG-TS (HDMV RID as found on Blu-ray disks)
468 - Core Audio Format demuxer
470 - MD STUDIO audio demuxer
471 - RF64 support in WAV demuxer
472 - MPEG-4 Audio Lossless Coding (ALS) decoder
473 - -formats option split into -formats, -codecs, -bsfs, and -protocols
475 - CDG demuxer and decoder
477 - Auravision Aura 1 and 2 decoders
478 - Deluxe Paint Animation playback system
480 - Adobe Filmstrip muxer and demuxer
481 - RTP depacketization of H.263
482 - Bink demuxer and audio/video decoders
483 - enable symbol versioning by default for linkers that support it
484 - IFF PBM/ILBM bitmap decoder
487 - RTP depacketization of AMR
493 - Kega Game Video (KGV1) decoder
494 - VorbisComment writing for FLAC, Ogg FLAC and Ogg Speex files
495 - RTP depacketization of Theora
496 - HTTP Digest authentication
497 - RTMP/RTMPT/RTMPS/RTMPE/RTMPTE protocol support via librtmp
498 - Psygnosis YOP demuxer and video decoder
499 - spectral extension support in the E-AC-3 decoder
500 - unsharp video filter
501 - RTP hinting in the mov/3gp/mp4 muxer
502 - Dirac in Ogg demuxing
503 - seek to keyframes in Ogg
504 - 4:2:2 and 4:4:4 Theora decoding
505 - 35% faster VP3/Theora decoding
506 - faster AAC decoding
507 - faster H.264 decoding
508 - RealAudio 1.0 (14.4K) encoder
513 - DV50 AKA DVCPRO50 encoder, decoder, muxer and demuxer
514 - TechSmith Camtasia (TSCC) video decoder
515 - IBM Ultimotion (ULTI) video decoder
516 - Sierra Online audio file demuxer and decoder
517 - Apple QuickDraw (qdrw) video decoder
518 - Creative ADPCM audio decoder (16 bits as well as 8 bits schemes)
519 - Electronic Arts Multimedia (WVE/UV2/etc.) file demuxer
520 - Miro VideoXL (VIXL) video decoder
521 - H.261 video encoder
523 - Nullsoft Video (NSV) file demuxer
524 - Shorten audio decoder
526 - Apple Lossless Audio Codec (ALAC) decoder
527 - Winnov WNV1 video decoder
528 - Autodesk Animator Studio Codec (AASC) decoder
529 - Indeo 2 video decoder
530 - Fraps FPS1 video decoder
531 - Snow video encoder/decoder
532 - Sonic audio encoder/decoder
533 - Vorbis audio decoder
534 - Macromedia ADPCM decoder
535 - Duck TrueMotion 2 video decoder
536 - support for decoding FLX and DTA extensions in FLIC files
537 - H.264 custom quantization matrices support
538 - ffserver fixed, it should now be usable again
540 - Real Cooker audio decoder
541 - TrueSpeech audio decoder
542 - WMA2 audio decoder fixed, now all files should play correctly
543 - RealAudio 14.4 and 28.8 decoders fixed
545 - build system improvements
546 - tabs and trailing whitespace removed from the codebase
547 - CamStudio video decoder
548 - AIFF/AIFF-C audio format, encoding and decoding
549 - ADTS AAC file reading and writing
550 - Creative VOC file reading and writing
551 - American Laser Games multimedia (*.mm) playback system
552 - Zip Motion Blocks Video decoder
553 - improved Theora/VP3 decoder
554 - True Audio (TTA) decoder
555 - AVS demuxer and video decoder
557 - Smacker demuxer and decoder
558 - NuppelVideo/MythTV demuxer and RTjpeg decoder
560 - MPEG-2 intra VLC support
561 - MPEG-2 4:2:2 encoder
562 - Flash Screen Video decoder
564 - Chinese AVS decoder
567 - VC-1/WMV3/WMV9 video decoder
570 - VMware video decoder
573 - WavPack lossless audio decoder
574 - Targa (.TGA) picture decoder
575 - Vorbis audio encoder
576 - Delphine Software .cin demuxer/audio and video decoder
577 - Tiertex .seq demuxer/video decoder
579 - TIFF picture encoder and decoder
580 - GIF picture decoder
581 - Intel Music Coder decoder
582 - Zip Motion Blocks Video encoder
584 - Flash Screen Video encoder
585 - Theora encoding via libtheora
588 - GSM-MS encoder and decoder
590 - DXA demuxer and decoder
592 - Gamecube movie (.THP) playback system
593 - Blackfin optimizations
594 - Interplay C93 demuxer and video decoder
595 - Bethsoft VID demuxer and video decoder
598 - V.Flash PTX decoder
599 - RoQ muxer, RoQ audio encoder
600 - Renderware TXD demuxer and decoder
601 - extern C declarations for C++ removed from headers
602 - sws_flags command line option
606 - OS/2 support removed and restored again
609 - additional SPARC (VIS) optimizations
611 - slice-based parallel H.264 decoding
612 - Monkey's Audio demuxer and decoder
613 - AMV audio and video decoder
615 - H.264 PAFF decoding
616 - Nellymoser ASAO decoder
617 - Beam Software SIFF demuxer and decoder
618 - libvorbis Vorbis decoding removed in favor of native decoder
619 - IntraX8 (J-Frame) subdecoder for WMV2 and VC-1
620 - Ogg (Theora, Vorbis and FLAC) muxer
621 - The "device" muxers and demuxers are now in a new libavdevice library
622 - PC Paintbrush PCX decoder
623 - Sun Rasterfile decoder
624 - TechnoTrend PVA demuxer
625 - Linux Media Labs MPEG-4 (LMLM4) demuxer
626 - AVM2 (Flash 9) SWF muxer
627 - QT variant of IMA ADPCM encoder
629 - iPod/iPhone compatible mp4 muxer
631 - MSN TCP Webcam stream demuxer
632 - RL2 demuxer / decoder
635 - non-recursive Makefiles
637 - MAXIS EA XA (.xa) demuxer / decoder
641 - Electronic Arts CMV decoder
642 - Motion Pixels Video decoder
643 - Motion Pixels MVI demuxer
644 - removed animated GIF decoder/demuxer
645 - D-Cinema audio muxer
646 - Electronic Arts TGV decoder
647 - Apple Lossless Audio Codec (ALAC) encoder
649 - floating point PCM encoder/decoder
651 - DV100 AKA DVCPRO HD decoder and demuxer
652 - E-AC-3 support added to AC-3 decoder
653 - Nellymoser ASAO encoder
654 - ASS and SSA demuxer and muxer
655 - liba52 wrapper removed
656 - SVQ3 watermark decoding support
657 - Speex decoding via libspeex
658 - Electronic Arts TGQ decoder
660 - QCELP / PureVoice decoder
662 - hybrid WavPack support
663 - R3D REDCODE demuxer
664 - ALSA support for playback and record
665 - Electronic Arts TQI decoder
666 - OpenJPEG based JPEG 2000 decoder
667 - NC (NC4600) camera file demuxer
668 - Gopher client support
670 - generic metadata API
675 - DV encoder, DV muxer
676 - Microsoft RLE video decoder
677 - Microsoft Video-1 decoder
678 - Apple Animation (RLE) decoder
679 - Apple Graphics (SMC) decoder
680 - Apple Video (RPZA) decoder
682 - Sega FILM (CPK) file demuxer
683 - Westwood multimedia support (VQA & AUD files)
684 - Id Quake II CIN playback support
686 - FLIC playback support
687 - RealVideo 2.0 (RV20) decoder
688 - Duck TrueMotion v1 (DUCK) video decoder
689 - Sierra VMD demuxer and video decoder
690 - MSZH and ZLIB decoder support
694 - rate distortion optimal cbp support
695 - rate distorted optimal ac prediction for MPEG-4
696 - rate distorted optimal lambda->qp support
697 - AAC encoding with libfaac
698 - Sunplus JPEG codec (SP5X) support
699 - use Lagrange multipler instead of QP for ratecontrol
700 - Theora/VP3 decoding support
701 - XA and ADX ADPCM codecs
702 - export MPEG-2 active display area / pan scan
703 - Add support for configuring with IBM XLC
704 - floating point AAN DCT
705 - initial support for zygo video (not complete)
707 - new audio/video parser API
709 - av_read_frame() and av_seek_frame() support
710 - missing last frame fixes
711 - seek by mouse in ffplay
712 - noise reduction of DCT coefficients
713 - H.263 OBMC & 4MV support
714 - H.263 alternative inter vlc support
716 - H.263 slice structured mode
717 - interlaced DCT support for MPEG-2 encoding
718 - stuffing to stay above min_bitrate
719 - MB type & QP visualization
720 - frame stepping for ffplay
721 - interlaced motion estimation
722 - alternate scantable support
723 - SVCD scan offset support
726 - quantizer noise shaping
727 - G.726 ADPCM audio codec
729 - multithreaded/SMP motion estimation
730 - multithreaded/SMP encoding for MPEG-1/MPEG-2/MPEG-4/H.263
731 - multithreaded/SMP decoding for MPEG-2
733 - Metrowerks CodeWarrior suppport
734 - H.263+ custom pcf support
735 - nicer output for 'ffmpeg -formats'
737 - SGI image format, encoding and decoding
738 - H.264 loop filter support
739 - H.264 CABAC support
740 - nicer looking arrows for the motion vector visualization
741 - improved VCD support
742 - audio timestamp drift compensation
743 - MPEG-2 YUV 422/444 support
744 - polyphase kaiser windowed sinc and blackman nuttall windowed sinc audio resample
745 - better image scaling
747 - correctly interleave packets during encoding
748 - VIS optimized motion compensation
749 - intra_dc_precision>0 encoding support
750 - support reuse of motion vectors/MB types/field select values of the source video
751 - more accurate deblock filter
753 - many optimizations and bugfixes
754 - FunCom ISS audio file demuxer and according ADPCM decoding
759 - MPEG-2 video encoding (Michael)
760 - Id RoQ playback subsystem (Mike Melanson and Tim Ferguson)
761 - Wing Commander III Movie (.mve) file playback subsystem (Mike Melanson
763 - Xan DPCM audio decoder (Mario Brito)
764 - Interplay MVE playback subsystem (Mike Melanson)
765 - Duck DK3 and DK4 ADPCM audio decoders (Mike Melanson)
770 - RealAudio 1.0 (14_4) and 2.0 (28_8) native decoders. Author unknown, code from mplayerhq
771 (originally from public domain player for Amiga at http://www.honeypot.net/audio)
772 - current version now also compiles with older GCC (Fabrice)
773 - 4X multimedia playback system including 4xm file demuxer (Mike
774 Melanson), and 4X video and audio codecs (Michael)
775 - Creative YUV (CYUV) decoder (Mike Melanson)
776 - FFV1 codec (our very simple lossless intra only codec, compresses much better
777 than HuffYUV) (Michael)
778 - ASV1 (Asus), H.264, Intel indeo3 codecs have been added (various)
779 - tiny PNG encoder and decoder, tiny GIF decoder, PAM decoder (PPM with
780 alpha support), JPEG YUV colorspace support. (Fabrice Bellard)
781 - ffplay has been replaced with a newer version which uses SDL (optionally)
782 for multiplatform support (Fabrice)
783 - Sorenson Version 3 codec (SVQ3) support has been added (decoding only) - donated
785 - AMR format has been added (Johannes Carlsson)
786 - 3GP support has been added (Johannes Carlsson)
787 - VP3 codec has been added (Mike Melanson)
788 - more MPEG-1/2 fixes
789 - better multiplatform support, MS Visual Studio fixes (various)
790 - AltiVec optimizations (Magnus Damn and others)
791 - SH4 processor support has been added (BERO)
792 - new public interfaces (avcodec_get_pix_fmt) (Roman Shaposhnick)
793 - VOB streaming support (Brian Foley)
794 - better MP3 autodetection (Andriy Rysin)
795 - qpel encoding (Michael)
796 - 4mv+b frames encoding finally fixed (Michael)
797 - chroma ME (Michael)
798 - 5 comparison functions for ME (Michael)
799 - B-frame encoding speedup (Michael)
800 - WMV2 codec (unfinished - Michael)
801 - user specified diamond size for EPZS (Michael)
802 - Playstation STR playback subsystem, still experimental (Mike and Michael)
803 - ASV2 codec (Michael)
804 - CLJR decoder (Alex)
806 .. And lots more new enhancements and fixes.
811 - completely new integer only MPEG audio layer 1/2/3 decoder rewritten
813 - Recoded DCT and motion vector search with gcc (no longer depends on nasm)
814 - fix quantization bug in AC3 encoder
815 - added PCM codecs and format. Corrected WAV/AVI/ASF PCM issues
816 - added prototype ffplay program
817 - added GOB header parsing on H.263/H.263+ decoder (Juanjo)
818 - bug fix on MCBPC tables of H.263 (Juanjo)
819 - bug fix on DC coefficients of H.263 (Juanjo)
820 - added Advanced Prediction Mode on H.263/H.263+ decoder (Juanjo)
821 - now we can decode H.263 streams found in QuickTime files (Juanjo)
822 - now we can decode H.263 streams found in VIVO v1 files(Juanjo)
823 - preliminary RTP "friendly" mode for H.263/H.263+ coding. (Juanjo)
824 - added GOB header for H.263/H.263+ coding on RTP mode (Juanjo)
825 - now H.263 picture size is returned on the first decoded frame (Juanjo)
826 - added first regression tests
827 - added MPEG-2 TS demuxer
828 - new demux API for libav
829 - more accurate and faster IDCT (Michael)
830 - faster and entropy-controlled motion search (Michael)
831 - two pass video encoding (Michael)
832 - new video rate control (Michael)
833 - added MSMPEG4V1, MSMPEGV2 and WMV1 support (Michael)
834 - great performance improvement of video encoders and decoders (Michael)
835 - new and faster bit readers and vlc parsers (Michael)
836 - high quality encoding mode: tries all macroblock/VLC types (Michael)
837 - added DV video decoder
838 - preliminary RTP/RTSP support in ffserver and libavformat
839 - H.263+ AIC decoding/encoding support (Juanjo)
840 - VCD MPEG-PS mode (Juanjo)
841 - PSNR stuff (Juanjo)
842 - simple stats output (Juanjo)
843 - 16-bit and 15-bit RGB/BGR/GBR support (Bisqwit)
848 - some header fixes (Zdenek Kabelac <kabi at informatics.muni.cz>)
849 - many MMX optimizations (Nick Kurshev <nickols_k at mail.ru>)
850 - added configure system (actually a small shell script)
851 - added MPEG audio layer 1/2/3 decoding using LGPL'ed mpglib by
852 Michael Hipp (temporary solution - waiting for integer only
854 - fixed VIDIOCSYNC interrupt
855 - added Intel H.263 decoding support ('I263' AVI fourCC)
856 - added Real Video 1.0 decoding (needs further testing)
857 - simplified image formats again. Added PGM format (=grey
858 pgm). Renamed old PGM to PGMYUV.
859 - fixed msmpeg4 slice issues (tell me if you still find problems)
860 - fixed OpenDivX bugs with newer versions (added VOL header decoding)
861 - added support for MPlayer interface
862 - added macroblock skip optimization
863 - added MJPEG decoder
864 - added mmx/mmxext IDCT from libmpeg2
865 - added pgmyuvpipe, ppm, and ppm_pipe formats (original patch by Celer
866 <celer at shell.scrypt.net>)
867 - added pixel format conversion layer (e.g. for MJPEG or PPM)
868 - added deinterlacing option
870 - MPEG-4 vol header fixes (Jonathan Marsden <snmjbm at pacbell.net>)
871 - ARM optimizations (Lionel Ulmer <lionel.ulmer at free.fr>).
872 - Windows porting of file converter
873 - added MJPEG raw format (input/ouput)
874 - added JPEG image format support (input/output)
879 - fixed some std header definitions (Bjorn Lindgren
880 <bjorn.e.lindgren at telia.com>).
881 - added MPEG demuxer (MPEG-1 and 2 compatible).
883 - added prototype RM demuxer
884 - added AC3 decoding (done with libac3 by Aaron Holtzman)
885 - added decoding codec parameter guessing (.e.g. for MPEG, because the
886 header does not include them)
887 - fixed header generation in MPEG-1, AVI and ASF muxer: wmplayer can now
888 play them (only tested video)
889 - fixed H.263 white bug
890 - fixed phase rounding in img resample filter
891 - add MMX code for polyphase img resample filter
892 - added CPU autodetection
893 - added generic title/author/copyright/comment string handling (ASF and RM
895 - added SWF demux to extract MP3 track (not usable yet because no MP3
897 - added fractional frame rate support
898 - codecs are no longer searched by read_header() (should fix ffserver
904 - BGR24 patch (initial patch by Jeroen Vreeken <pe1rxq at amsat.org>)
905 - fixed raw yuv output
906 - added motion rounding support in MPEG-4
907 - fixed motion bug rounding in MSMPEG4
908 - added B-frame handling in video core
909 - added full MPEG-1 decoding support
910 - added partial (frame only) MPEG-2 support
911 - changed the FOURCC code for H.263 to "U263" to be able to see the
912 +AVI/H.263 file with the UB Video H.263+ decoder. MPlayer works with
913 this +codec ;) (JuanJo).
914 - Halfpel motion estimation after MB type selection (JuanJo)
915 - added pgm and .Y.U.V output format
916 - suppressed 'img:' protocol. Simply use: /tmp/test%d.[pgm|Y] as input or
918 - added pgmpipe I/O format (original patch from Martin Aumueller
919 <lists at reserv.at>, but changed completely since we use a format
920 instead of a protocol)
925 - added H.263/MPEG-4/MSMPEG4 decoding support. MPEG-4 decoding support
926 (for OpenDivX) is almost complete: 8x8 MVs and rounding are
927 missing. MSMPEG4 support is complete.
928 - added prototype MPEG-1 decoder. Only I- and P-frames handled yet (it
929 can decode ffmpeg MPEGs :-)).
930 - added libavcodec API documentation (see apiexample.c).
931 - fixed image polyphase bug (the bottom of some images could be
933 - added support for non clipped motion vectors (decoding only)
934 and image sizes non-multiple of 16
935 - added support for AC prediction (decoding only)
936 - added file overwrite confirmation (can be disabled with -y)
937 - added custom size picture to H.263 using H.263+ (Juanjo)
942 - added MSMPEG4 (aka DivX) compatible encoder. Changed default codec
943 of AVI and ASF to DIV3.
944 - added -me option to set motion estimation method
945 (default=log). suppressed redundant -hq option.
946 - added options -acodec and -vcodec to force a given codec (useful for
949 - improved dct_quantize speed
950 - factorized some motion estimation code
955 - removing grab code from ffserver and moved it to ffmpeg. Added
956 multistream support to ffmpeg.
957 - added timeshifting support for live feeds (option ?date=xxx in the
959 - added high quality image resize code with polyphase filter (need
960 mmx/see optimization). Enable multiple image size support in ffserver.
961 - added multi live feed support in ffserver
962 - suppressed master feature from ffserver (it should be done with an
963 external program which opens the .ffm url and writes it to another
965 - added preliminary support for video stream parsing (WAV and AVI half
966 done). Added proper support for audio/video file conversion in
968 - added preliminary support for video file sending from ffserver
969 - redesigning I/O subsystem: now using URL based input and output
971 - added WAV format support
972 - added "tty user interface" to ffmpeg to stop grabbing gracefully
973 - added MMX/SSE optimizations to SAD (Sums of Absolutes Differences)
974 (Juan J. Sierralta P. a.k.a. "Juanjo" <juanjo at atmlab.utfsm.cl>)
975 - added MMX DCT from mpeg2_movie 1.5 (Juanjo)
976 - added new motion estimation algorithms, log and phods (Juanjo)
977 - changed directories: libav for format handling, libavcodec for
983 - added stereo in MPEG audio encoder
988 - added 'high quality' mode which use motion vectors. It can be used in
989 real time at low resolution.
990 - fixed rounding problems which caused quality problems at high
991 bitrates and large GOP size
994 version 0.3.2: small fixes
1000 version 0.3.1: added avi/divx support
1003 - added MPEG-4 codec compatible with OpenDivX. It is based on the H.263 codec
1004 - added sound for flash format (not tested)
1007 version 0.3: initial public release