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)
23 - RTP depacketization of T.140 text (RFC 4103)
24 - VP9 RTP payload format (draft 0) experimental depacketizer
29 - shuffleplanes filter
30 - replaygain data export
31 - Alias PIX image encoder and decoder
32 - BRender PIX image decoder
33 - Amazing Studio PAF playback support
35 - BMP standalone parser
36 - OpenEXR image decoder
37 - support encoding and decoding 4-channel SGI images
38 - support decoding 16-bit RLE SGI images
40 - LucasArts SMUSH SANM video decoder
41 - LucasArts SMUSH VIMA audio decoder (ADPCM)
42 - LucasArts SMUSH demuxer
43 - MP2 encoding via TwoLAME
45 - Silicon Graphics RLE 8-bit video decoder
46 - Silicon Graphics Motion Video Compressor 1 & 2 decoder
47 - Silicon Graphics Movie demuxer
48 - On2 AVC (Audio for Video) decoder
49 - support for decoding through DXVA2 in avconv
50 - libbs2b-based stereo-to-binaural audio filter
52 - display matrix export and rotation API
53 - drop avserver, it was unmaintained for years and largely broken
55 - request Icecast metadata by default
56 - support for using metadata in stream specifiers in avtools
62 - support ID3v2 tags in ASF files
63 - reference-counting for AVFrame and AVPacket data
64 - avconv now fails when input options are used for output file
66 - avconv options -filter_script and -filter_complex_script, which allow a
67 filtergraph description to be read from a file
68 - uniform options syntax across all filters
71 - asetpts filter (same as setpts, but for audio)
72 - trim and atrim filters
73 - avconv -t and -ss (output-only) options are now sample-accurate when
75 - Matroska muxer can now put the index at the beginning of the file.
76 - avconv -deinterlace option removed, the yadif filter should be used instead
77 - Apple Intermediate Codec decoder
78 - Escape 130 video decoder
79 - support for slice multithreading in libavfilter
80 - VC-1 interlaced B-frame support
81 - support for WavPack muxing (raw and in Matroska)
83 - WavPack encoding through libwavpack
84 - Added the -n parameter to avconv
86 - when transcoding with avconv (i.e. not streamcopying), -ss is now accurate
87 even when used as an input option. Previous behavior can be restored with
88 the -noaccurate_seek option.
89 - avconv -t option can now be used for inputs, to limit the duration of
90 data read from an input file
91 - Voxware MetaSound decoder
93 - Error Resilient AAC syntax (ER AAC LC) decoding
94 - Low Delay AAC (ER AAC LD) decoding
95 - mux chapters in ASF files
96 - Opus in Ogg demuxing
97 - Enhanced Low Delay AAC (ER AAC ELD) decoding (no LD SBR support)
99 - HNM version 4 demuxer and video decoder
101 - raw HEVC, HEVC in MOV/MP4, HEVC in Matroska, HEVC in MPEG-TS demuxing
102 - remove avplay -vismv option, which has not worked for a long time
104 - setsar/setdar filters now support variables in ratio expressions
105 - dar variable in the scale filter now returns the actual DAR (i.e. a * sar)
107 - support for decoding through VDPAU in avconv (the -hwaccel option)
108 - remove mp3_header_(de)compress bitstream filters
109 - stereoscopic 3d metadata handling
110 - png standalone parser
111 - WebP encoding via libwebp
114 - Mirillis FIC video decoder
116 - compand audio filter
120 - av_basename and av_dirname
121 - adobe and limelight publisher authentication in RTMP
122 - VDPAU hardware acceleration through normal hwaccel
127 - ashowinfo audio filter
128 - 24-bit FLAC encoding
129 - audio volume filter
130 - deprecated the avconv -vol option. the volume filter is to be used instead.
131 - multi-channel ALAC encoding up to 7.1
132 - TAK demuxer, parser, and decoder
133 - adaptive frame-level multithreading for H.264
137 - metadata (INFO tag) support in WAV muxer
138 - support for building DLLs using MSVC
139 - remove avserver daemon mode
140 - support building on the Plan 9 operating system
141 - ffv1: support version 1.3
146 - XWD encoder and decoder
147 - Support for fragmentation in the mov/mp4 muxer
148 - ISMV (Smooth Streaming) muxer
149 - CDXL demuxer and decoder
150 - Apple ProRes encoder
151 - Sun Rasterfile Encoder
153 - ID3v2 attached pictures reading and writing
154 - WMA Lossless decoder
156 - RealAudio Lossless decoder
158 - drop support for avconv without libavfilter
159 - add libavresample audio conversion library
160 - audio filters support in libavfilter and avconv
164 - avprobe output is now standard INI or JSON. The old format can still
165 be used with -of old.
166 - Indeo Audio decoder
167 - channelsplit audio filter
168 - RTMPT protocol support
169 - iLBC encoding/decoding via libilbc
170 - Microsoft Screen 1 decoder
172 - audio channel mapping filter
173 - Microsoft ATC Screen decoder
175 - TechSmith Screen Codec 2 decoder
176 - AAC encoding via libfdk-aac
177 - Microsoft Expression Encoder Screen decoder
178 - RTMPS protocol support
179 - RTMPTS protocol support
180 - JPEG 2000 encoding support through OpenJPEG
181 - G.723.1 demuxer and decoder
182 - RTMPE protocol support
183 - RTMPTE protocol support
184 - Canopus Lossless Codec decoder
185 - avconv -shortest option is now per-output file,
186 -pass and -passlogfile are now per-output stream
188 - Microsoft Screen 2 decoder
189 - RTP depacketization of JPEG
190 - Smooth Streaming live segmenter muxer
191 - RTP packetization of JPEG
192 - Opus decoder and encoder using libopus
193 - remove -same_quant, it hasn't worked for years
194 - support for building with MSVC
205 - Automatic thread count based on detection number of (available) CPU cores
206 - Deprecate libpostproc. If desired, the switch --enable-postproc will
207 enable it but it may be removed in a later Libav release.
208 - rv34: frame-level multi-threading
209 - optimized iMDCT transform on x86 using SSE for for mpegaudiodec
215 - Flash Screen Video 2 decoder
216 - ffplay/ffprobe/ffserver renamed to avplay/avprobe/avserver
217 - ffmpeg deprecated, added avconv, which is almost the same for now, except
218 for a few incompatible changes in the options, which will hopefully make them
219 easier to use. The changes are:
220 * The options placement is now strictly enforced! While in theory the
221 options for ffmpeg should be given in [input options] -i INPUT [output
222 options] OUTPUT order, in practice it was possible to give output options
223 before the -i and it mostly worked. Except when it didn't - the behavior was
224 a bit inconsistent. In avconv, it is not possible to mix input and output
225 options. All non-global options are reset after an input or output filename.
226 * All per-file options are now truly per-file - they apply only to the next
227 input or output file and specifying different values for different files
228 will now work properly (notably -ss and -t options).
229 * All per-stream options are now truly per-stream - it is possible to
230 specify which stream(s) should a given option apply to. See the Stream
231 specifiers section in the avconv manual for details.
232 * In ffmpeg some options (like -newvideo/-newaudio/...) are irregular in the
233 sense that they're specified after the output filename instead of before,
234 like all other options. In avconv this irregularity is removed, all options
235 apply to the next input or output file.
236 * -newvideo/-newaudio/-newsubtitle options were removed. Not only were they
237 irregular and highly confusing, they were also redundant. In avconv the -map
238 option will create new streams in the output file and map input streams to
239 them. E.g. avconv -i INPUT -map 0 OUTPUT will create an output stream for
240 each stream in the first input file.
241 * The -map option now has slightly different and more powerful syntax:
242 + Colons (':') are used to separate file index/stream type/stream index
243 instead of dots. Comma (',') is used to separate the sync stream instead
244 of colon.. This is done for consistency with other options.
245 + It's possible to specify stream type. E.g. -map 0:a:2 creates an
246 output stream from the third input audio stream.
247 + Omitting the stream index now maps all the streams of the given type,
248 not just the first. E.g. -map 0:s creates output streams for all the
249 subtitle streams in the first input file.
250 + Since -map can now match multiple streams, negative mappings were
251 introduced. Negative mappings disable some streams from an already
252 defined map. E.g. '-map 0 -map -0:a:1' means 'create output streams for
253 all the stream in the first input file, except for the second audio
255 * There is a new option -c (or -codec) for choosing the decoder/encoder to
256 use, which allows to precisely specify target stream(s) consistently with
257 other options. E.g. -c:v lib264 sets the codec for all video streams, -c:a:0
258 libvorbis sets the codec for the first audio stream and -c copy copies all
259 the streams without reencoding. Old -vcodec/-acodec/-scodec options are now
261 * It is now possible to precisely specify which stream should an AVOption
262 apply to. E.g. -b:v:0 2M sets the bitrate for the first video stream, while
263 -b:a 128k sets the bitrate for all audio streams. Note that the old -ab 128k
264 syntax is deprecated and will stop working soon.
265 * -map_chapters now takes only an input file index and applies to the next
266 output file. This is consistent with how all the other options work.
267 * -map_metadata now takes only an input metadata specifier and applies to
268 the next output file. Output metadata specifier is now part of the option
269 name, similarly to the AVOptions/map/codec feature above.
270 * -metadata can now be used to set metadata on streams and chapters, e.g.
271 -metadata:s:1 language=eng sets the language of the first stream to 'eng'.
272 This made -vlang/-alang/-slang options redundant, so they were removed.
273 * -qscale option now uses stream specifiers and applies to all streams, not
274 just video. I.e. plain -qscale number would now apply to all streams. To get
275 the old behavior, use -qscale:v. Also there is now a shortcut -q for -qscale
276 and -aq is now an alias for -q:a.
277 * -vbsf/-absf/-sbsf options were removed and replaced by a -bsf option which
278 uses stream specifiers. Use -bsf:v/a/s instead of the old options.
279 * -itsscale option now uses stream specifiers, so its argument is only the
281 * -intra option was removed, use -g 0 for the same effect.
282 * -psnr option was removed, use -flags +psnr for the same effect.
283 * -vf option is now an alias to the new -filter option, which uses stream specifiers.
284 * -vframes/-aframes/-dframes options are now aliases to the new -frames option.
285 * -vtag/-atag/-stag options are now aliases to the new -tag option.
287 - Windows Media Image decoder
291 - libcdio-paranoia input device for audio CD grabbing
293 - Apple ProRes decoder
294 - CELT in Ogg demuxing
295 - VC-1 interlaced decoding
296 - lut, lutrgb, and lutyuv filters
299 - Speex encoding via libspeex
300 - 4:2:2 H.264 decoding support
301 - 4:2:2 and 4:4:4 H.264 encoding with libx264
302 - Pulseaudio input device
303 - replacement Indeo 3 decoder
304 - TLS/SSL and HTTPS protocol support
305 - AVOptions API rewritten and documented
306 - most of CODEC_FLAG2_*, some CODEC_FLAG_* and many codec-specific fields in
307 AVCodecContext deprecated. Codec private options should be used instead.
308 - Properly working defaults in libx264 wrapper, support for native presets.
309 - Encrypted OMA files support
310 - Discworld II BMV decoding support
312 - OS X Video Decoder Acceleration (VDA) support
313 - CRI ADX audio format muxer and demuxer
314 - Playstation Portable PMP format demuxer
315 - PCM format support in OMA demuxer
317 - Dxtory capture format decoder
318 - v410 QuickTime uncompressed 4:4:4 10-bit encoder and decoder
320 - Simple segmenting muxer
327 - E-AC-3 audio encoder
328 - ac3enc: add channel coupling support
329 - floating-point sample format support for (E-)AC-3, DCA, AAC, Vorbis decoders
330 - H.264/MPEG frame-level multithreading
331 - av_metadata_* functions renamed to av_dict_* and moved to libavutil
332 - 4:4:4 H.264 decoding support
333 - 10-bit H.264 optimizations for x86
334 - bump libswscale for recently reported ABI break
339 - VP8 frame-level multithreading
340 - NEON optimizations for VP8
341 - removed a lot of deprecated API cruft
342 - FFT and IMDCT optimizations for AVX (Sandy Bridge) processors
344 - SMPTE 302M AES3 audio decoder
345 - ffmpeg no longer quits after the 'q' key is pressed; use 'ctrl+c' instead
346 - 9bit and 10bit per sample support in the H.264 decoder
351 - WebM support in Matroska de/muxer
352 - low overhead Ogg muxing
354 - VP8 de/encoding via libvpx
355 - Demuxer for On2's IVF format
356 - Pictor/PC Paint decoder
358 - libfaad2 wrapper removed
359 - DTS-ES extension (XCh) decoding support
361 - RTSP tunneling over HTTP
362 - RTP depacketization of SVQ3
363 - -strict inofficial replaced by -strict unofficial
364 - ffplay -exitonkeydown and -exitonmousedown options added
365 - native GSM / GSM MS decoder
366 - RTP depacketization of QDM2
367 - ANSI/ASCII art playback system
368 - Lego Mindstorms RSO de/muxer
369 - SubRip subtitle file muxer and demuxer
370 - Chinese AVS encoding via libxavs
371 - ffprobe -show_packets option added
372 - RTP packetization of Theora and Vorbis
373 - RTP depacketization of MP4A-LATM
374 - RTP packetization and depacketization of VP8
376 - Apple HTTP Live Streaming demuxer
379 - G.722 ADPCM audio encoder/decoder
382 - frei0r wrapper filter
383 - change crop filter syntax to width:height:x:y
384 - make the crop filter accept parametric expressions
385 - make ffprobe accept AVFormatContext options
388 - Demuxer for Leitch/Harris' VR native stream format (LXF)
389 - RTP depacketization of the X-QT QuickTime format
390 - SAP (Session Announcement Protocol, RFC 2974) muxer and demuxer
392 - ffmpeg -crop* options removed
393 - transpose filter added
394 - ffmpeg -force_key_frames option added
395 - demuxer for receiving raw rtp:// URLs without an SDP description
396 - single stream LATM/LOAS decoder
397 - setpts filter added
398 - Win64 support for optimized x86 assembly functions
399 - MJPEG/AVI1 to JPEG/JFIF bitstream filter
400 - ASS subtitle encoder and decoder
401 - IEC 61937 encapsulation for E-AC-3, TrueHD, DTS-HD (for HDMI passthrough)
402 - overlay filter added
403 - rename aspect filter to setdar, and pixelaspect to setsar
405 - Mobotix .mxg demuxer
406 - frei0r source added
407 - hqdn3d filter added
408 - RTP depacketization of QCELP
410 - gradfun filter added
412 - replace the ocv_smooth filter with a more generic ocv filter
413 - Windows Televison (WTV) demuxer
414 - FFmpeg metadata format muxer and demuxer
415 - SubRip (srt) subtitle decoder
416 - floating-point AC-3 encoder added
418 - ffmpeg -copytb option added
420 - Wing Commander IV movies decoder added
422 - Bink version 'b' audio and video decoder
423 - Bitmap Brothers JV playback system
424 - Apple HTTP Live Streaming protocol handler
425 - sndio support for playback and record
426 - Linux framebuffer input device added
427 - Chronomaster DFA decoder
428 - Mobotix MxPEG decoder
429 - AAC encoding via libvo-aacenc
430 - AMR-WB encoding via libvo-amrwbenc
432 - fieldorder video filter added
437 - PB-frame decoding for H.263
438 - deprecated vhook subsystem removed
439 - deprecated old scaler removed
441 - Alpha channel scaler
443 - RTP packetization of H.263
444 - RTP packetization of AMR
445 - RTP depacketization of Vorbis
446 - CorePNG decoding support
447 - Cook multichannel decoding support
448 - introduced avlanguage helpers in libavformat
449 - 8088flex TMV demuxer and decoder
450 - per-stream language-tags extraction in asfdec
451 - V210 decoder and encoder
452 - remaining GPL parts in AC-3 decoder converted to LGPL
454 - SoX native format muxer and demuxer
455 - AMR-NB decoding/encoding, AMR-WB decoding via OpenCORE libraries
457 - Electronic Arts Madcow decoder
458 - DivX (XSUB) subtitle encoder
459 - nonfree libamr support for AMR-NB/WB decoding/encoding removed
460 - experimental AAC encoder
461 - RTP depacketization of ASF and RTSP from WMS servers
462 - RTMP support in libavformat
463 - noX handling for OPT_BOOL X options
465 - IEC-61937 compatible Muxer
467 - Bluray (PGS) subtitle decoder
468 - LPCM support in MPEG-TS (HDMV RID as found on Blu-ray disks)
470 - Core Audio Format demuxer
472 - MD STUDIO audio demuxer
473 - RF64 support in WAV demuxer
474 - MPEG-4 Audio Lossless Coding (ALS) decoder
475 - -formats option split into -formats, -codecs, -bsfs, and -protocols
477 - CDG demuxer and decoder
479 - Auravision Aura 1 and 2 decoders
480 - Deluxe Paint Animation playback system
482 - Adobe Filmstrip muxer and demuxer
483 - RTP depacketization of H.263
484 - Bink demuxer and audio/video decoders
485 - enable symbol versioning by default for linkers that support it
486 - IFF PBM/ILBM bitmap decoder
489 - RTP depacketization of AMR
495 - Kega Game Video (KGV1) decoder
496 - VorbisComment writing for FLAC, Ogg FLAC and Ogg Speex files
497 - RTP depacketization of Theora
498 - HTTP Digest authentication
499 - RTMP/RTMPT/RTMPS/RTMPE/RTMPTE protocol support via librtmp
500 - Psygnosis YOP demuxer and video decoder
501 - spectral extension support in the E-AC-3 decoder
502 - unsharp video filter
503 - RTP hinting in the mov/3gp/mp4 muxer
504 - Dirac in Ogg demuxing
505 - seek to keyframes in Ogg
506 - 4:2:2 and 4:4:4 Theora decoding
507 - 35% faster VP3/Theora decoding
508 - faster AAC decoding
509 - faster H.264 decoding
510 - RealAudio 1.0 (14.4K) encoder
515 - DV50 AKA DVCPRO50 encoder, decoder, muxer and demuxer
516 - TechSmith Camtasia (TSCC) video decoder
517 - IBM Ultimotion (ULTI) video decoder
518 - Sierra Online audio file demuxer and decoder
519 - Apple QuickDraw (qdrw) video decoder
520 - Creative ADPCM audio decoder (16 bits as well as 8 bits schemes)
521 - Electronic Arts Multimedia (WVE/UV2/etc.) file demuxer
522 - Miro VideoXL (VIXL) video decoder
523 - H.261 video encoder
525 - Nullsoft Video (NSV) file demuxer
526 - Shorten audio decoder
528 - Apple Lossless Audio Codec (ALAC) decoder
529 - Winnov WNV1 video decoder
530 - Autodesk Animator Studio Codec (AASC) decoder
531 - Indeo 2 video decoder
532 - Fraps FPS1 video decoder
533 - Snow video encoder/decoder
534 - Sonic audio encoder/decoder
535 - Vorbis audio decoder
536 - Macromedia ADPCM decoder
537 - Duck TrueMotion 2 video decoder
538 - support for decoding FLX and DTA extensions in FLIC files
539 - H.264 custom quantization matrices support
540 - ffserver fixed, it should now be usable again
542 - Real Cooker audio decoder
543 - TrueSpeech audio decoder
544 - WMA2 audio decoder fixed, now all files should play correctly
545 - RealAudio 14.4 and 28.8 decoders fixed
547 - build system improvements
548 - tabs and trailing whitespace removed from the codebase
549 - CamStudio video decoder
550 - AIFF/AIFF-C audio format, encoding and decoding
551 - ADTS AAC file reading and writing
552 - Creative VOC file reading and writing
553 - American Laser Games multimedia (*.mm) playback system
554 - Zip Motion Blocks Video decoder
555 - improved Theora/VP3 decoder
556 - True Audio (TTA) decoder
557 - AVS demuxer and video decoder
559 - Smacker demuxer and decoder
560 - NuppelVideo/MythTV demuxer and RTjpeg decoder
562 - MPEG-2 intra VLC support
563 - MPEG-2 4:2:2 encoder
564 - Flash Screen Video decoder
566 - Chinese AVS decoder
569 - VC-1/WMV3/WMV9 video decoder
572 - VMware video decoder
575 - WavPack lossless audio decoder
576 - Targa (.TGA) picture decoder
577 - Vorbis audio encoder
578 - Delphine Software .cin demuxer/audio and video decoder
579 - Tiertex .seq demuxer/video decoder
581 - TIFF picture encoder and decoder
582 - GIF picture decoder
583 - Intel Music Coder decoder
584 - Zip Motion Blocks Video encoder
586 - Flash Screen Video encoder
587 - Theora encoding via libtheora
590 - GSM-MS encoder and decoder
592 - DXA demuxer and decoder
594 - Gamecube movie (.THP) playback system
595 - Blackfin optimizations
596 - Interplay C93 demuxer and video decoder
597 - Bethsoft VID demuxer and video decoder
600 - V.Flash PTX decoder
601 - RoQ muxer, RoQ audio encoder
602 - Renderware TXD demuxer and decoder
603 - extern C declarations for C++ removed from headers
604 - sws_flags command line option
608 - OS/2 support removed and restored again
611 - additional SPARC (VIS) optimizations
613 - slice-based parallel H.264 decoding
614 - Monkey's Audio demuxer and decoder
615 - AMV audio and video decoder
617 - H.264 PAFF decoding
618 - Nellymoser ASAO decoder
619 - Beam Software SIFF demuxer and decoder
620 - libvorbis Vorbis decoding removed in favor of native decoder
621 - IntraX8 (J-Frame) subdecoder for WMV2 and VC-1
622 - Ogg (Theora, Vorbis and FLAC) muxer
623 - The "device" muxers and demuxers are now in a new libavdevice library
624 - PC Paintbrush PCX decoder
625 - Sun Rasterfile decoder
626 - TechnoTrend PVA demuxer
627 - Linux Media Labs MPEG-4 (LMLM4) demuxer
628 - AVM2 (Flash 9) SWF muxer
629 - QT variant of IMA ADPCM encoder
631 - iPod/iPhone compatible mp4 muxer
633 - MSN TCP Webcam stream demuxer
634 - RL2 demuxer / decoder
637 - non-recursive Makefiles
639 - MAXIS EA XA (.xa) demuxer / decoder
643 - Electronic Arts CMV decoder
644 - Motion Pixels Video decoder
645 - Motion Pixels MVI demuxer
646 - removed animated GIF decoder/demuxer
647 - D-Cinema audio muxer
648 - Electronic Arts TGV decoder
649 - Apple Lossless Audio Codec (ALAC) encoder
651 - floating point PCM encoder/decoder
653 - DV100 AKA DVCPRO HD decoder and demuxer
654 - E-AC-3 support added to AC-3 decoder
655 - Nellymoser ASAO encoder
656 - ASS and SSA demuxer and muxer
657 - liba52 wrapper removed
658 - SVQ3 watermark decoding support
659 - Speex decoding via libspeex
660 - Electronic Arts TGQ decoder
662 - QCELP / PureVoice decoder
664 - hybrid WavPack support
665 - R3D REDCODE demuxer
666 - ALSA support for playback and record
667 - Electronic Arts TQI decoder
668 - OpenJPEG based JPEG 2000 decoder
669 - NC (NC4600) camera file demuxer
670 - Gopher client support
672 - generic metadata API
677 - DV encoder, DV muxer
678 - Microsoft RLE video decoder
679 - Microsoft Video-1 decoder
680 - Apple Animation (RLE) decoder
681 - Apple Graphics (SMC) decoder
682 - Apple Video (RPZA) decoder
684 - Sega FILM (CPK) file demuxer
685 - Westwood multimedia support (VQA & AUD files)
686 - Id Quake II CIN playback support
688 - FLIC playback support
689 - RealVideo 2.0 (RV20) decoder
690 - Duck TrueMotion v1 (DUCK) video decoder
691 - Sierra VMD demuxer and video decoder
692 - MSZH and ZLIB decoder support
696 - rate distortion optimal cbp support
697 - rate distorted optimal ac prediction for MPEG-4
698 - rate distorted optimal lambda->qp support
699 - AAC encoding with libfaac
700 - Sunplus JPEG codec (SP5X) support
701 - use Lagrange multipler instead of QP for ratecontrol
702 - Theora/VP3 decoding support
703 - XA and ADX ADPCM codecs
704 - export MPEG-2 active display area / pan scan
705 - Add support for configuring with IBM XLC
706 - floating point AAN DCT
707 - initial support for zygo video (not complete)
709 - new audio/video parser API
711 - av_read_frame() and av_seek_frame() support
712 - missing last frame fixes
713 - seek by mouse in ffplay
714 - noise reduction of DCT coefficients
715 - H.263 OBMC & 4MV support
716 - H.263 alternative inter vlc support
718 - H.263 slice structured mode
719 - interlaced DCT support for MPEG-2 encoding
720 - stuffing to stay above min_bitrate
721 - MB type & QP visualization
722 - frame stepping for ffplay
723 - interlaced motion estimation
724 - alternate scantable support
725 - SVCD scan offset support
728 - quantizer noise shaping
729 - G.726 ADPCM audio codec
731 - multithreaded/SMP motion estimation
732 - multithreaded/SMP encoding for MPEG-1/MPEG-2/MPEG-4/H.263
733 - multithreaded/SMP decoding for MPEG-2
735 - Metrowerks CodeWarrior suppport
736 - H.263+ custom pcf support
737 - nicer output for 'ffmpeg -formats'
739 - SGI image format, encoding and decoding
740 - H.264 loop filter support
741 - H.264 CABAC support
742 - nicer looking arrows for the motion vector visualization
743 - improved VCD support
744 - audio timestamp drift compensation
745 - MPEG-2 YUV 422/444 support
746 - polyphase kaiser windowed sinc and blackman nuttall windowed sinc audio resample
747 - better image scaling
749 - correctly interleave packets during encoding
750 - VIS optimized motion compensation
751 - intra_dc_precision>0 encoding support
752 - support reuse of motion vectors/MB types/field select values of the source video
753 - more accurate deblock filter
755 - many optimizations and bugfixes
756 - FunCom ISS audio file demuxer and according ADPCM decoding
761 - MPEG-2 video encoding (Michael)
762 - Id RoQ playback subsystem (Mike Melanson and Tim Ferguson)
763 - Wing Commander III Movie (.mve) file playback subsystem (Mike Melanson
765 - Xan DPCM audio decoder (Mario Brito)
766 - Interplay MVE playback subsystem (Mike Melanson)
767 - Duck DK3 and DK4 ADPCM audio decoders (Mike Melanson)
772 - RealAudio 1.0 (14_4) and 2.0 (28_8) native decoders. Author unknown, code from mplayerhq
773 (originally from public domain player for Amiga at http://www.honeypot.net/audio)
774 - current version now also compiles with older GCC (Fabrice)
775 - 4X multimedia playback system including 4xm file demuxer (Mike
776 Melanson), and 4X video and audio codecs (Michael)
777 - Creative YUV (CYUV) decoder (Mike Melanson)
778 - FFV1 codec (our very simple lossless intra only codec, compresses much better
779 than HuffYUV) (Michael)
780 - ASV1 (Asus), H.264, Intel indeo3 codecs have been added (various)
781 - tiny PNG encoder and decoder, tiny GIF decoder, PAM decoder (PPM with
782 alpha support), JPEG YUV colorspace support. (Fabrice Bellard)
783 - ffplay has been replaced with a newer version which uses SDL (optionally)
784 for multiplatform support (Fabrice)
785 - Sorenson Version 3 codec (SVQ3) support has been added (decoding only) - donated
787 - AMR format has been added (Johannes Carlsson)
788 - 3GP support has been added (Johannes Carlsson)
789 - VP3 codec has been added (Mike Melanson)
790 - more MPEG-1/2 fixes
791 - better multiplatform support, MS Visual Studio fixes (various)
792 - AltiVec optimizations (Magnus Damn and others)
793 - SH4 processor support has been added (BERO)
794 - new public interfaces (avcodec_get_pix_fmt) (Roman Shaposhnick)
795 - VOB streaming support (Brian Foley)
796 - better MP3 autodetection (Andriy Rysin)
797 - qpel encoding (Michael)
798 - 4mv+b frames encoding finally fixed (Michael)
799 - chroma ME (Michael)
800 - 5 comparison functions for ME (Michael)
801 - B-frame encoding speedup (Michael)
802 - WMV2 codec (unfinished - Michael)
803 - user specified diamond size for EPZS (Michael)
804 - Playstation STR playback subsystem, still experimental (Mike and Michael)
805 - ASV2 codec (Michael)
806 - CLJR decoder (Alex)
808 .. And lots more new enhancements and fixes.
813 - completely new integer only MPEG audio layer 1/2/3 decoder rewritten
815 - Recoded DCT and motion vector search with gcc (no longer depends on nasm)
816 - fix quantization bug in AC3 encoder
817 - added PCM codecs and format. Corrected WAV/AVI/ASF PCM issues
818 - added prototype ffplay program
819 - added GOB header parsing on H.263/H.263+ decoder (Juanjo)
820 - bug fix on MCBPC tables of H.263 (Juanjo)
821 - bug fix on DC coefficients of H.263 (Juanjo)
822 - added Advanced Prediction Mode on H.263/H.263+ decoder (Juanjo)
823 - now we can decode H.263 streams found in QuickTime files (Juanjo)
824 - now we can decode H.263 streams found in VIVO v1 files(Juanjo)
825 - preliminary RTP "friendly" mode for H.263/H.263+ coding. (Juanjo)
826 - added GOB header for H.263/H.263+ coding on RTP mode (Juanjo)
827 - now H.263 picture size is returned on the first decoded frame (Juanjo)
828 - added first regression tests
829 - added MPEG-2 TS demuxer
830 - new demux API for libav
831 - more accurate and faster IDCT (Michael)
832 - faster and entropy-controlled motion search (Michael)
833 - two pass video encoding (Michael)
834 - new video rate control (Michael)
835 - added MSMPEG4V1, MSMPEGV2 and WMV1 support (Michael)
836 - great performance improvement of video encoders and decoders (Michael)
837 - new and faster bit readers and vlc parsers (Michael)
838 - high quality encoding mode: tries all macroblock/VLC types (Michael)
839 - added DV video decoder
840 - preliminary RTP/RTSP support in ffserver and libavformat
841 - H.263+ AIC decoding/encoding support (Juanjo)
842 - VCD MPEG-PS mode (Juanjo)
843 - PSNR stuff (Juanjo)
844 - simple stats output (Juanjo)
845 - 16-bit and 15-bit RGB/BGR/GBR support (Bisqwit)
850 - some header fixes (Zdenek Kabelac <kabi at informatics.muni.cz>)
851 - many MMX optimizations (Nick Kurshev <nickols_k at mail.ru>)
852 - added configure system (actually a small shell script)
853 - added MPEG audio layer 1/2/3 decoding using LGPL'ed mpglib by
854 Michael Hipp (temporary solution - waiting for integer only
856 - fixed VIDIOCSYNC interrupt
857 - added Intel H.263 decoding support ('I263' AVI fourCC)
858 - added Real Video 1.0 decoding (needs further testing)
859 - simplified image formats again. Added PGM format (=grey
860 pgm). Renamed old PGM to PGMYUV.
861 - fixed msmpeg4 slice issues (tell me if you still find problems)
862 - fixed OpenDivX bugs with newer versions (added VOL header decoding)
863 - added support for MPlayer interface
864 - added macroblock skip optimization
865 - added MJPEG decoder
866 - added mmx/mmxext IDCT from libmpeg2
867 - added pgmyuvpipe, ppm, and ppm_pipe formats (original patch by Celer
868 <celer at shell.scrypt.net>)
869 - added pixel format conversion layer (e.g. for MJPEG or PPM)
870 - added deinterlacing option
872 - MPEG-4 vol header fixes (Jonathan Marsden <snmjbm at pacbell.net>)
873 - ARM optimizations (Lionel Ulmer <lionel.ulmer at free.fr>).
874 - Windows porting of file converter
875 - added MJPEG raw format (input/ouput)
876 - added JPEG image format support (input/output)
881 - fixed some std header definitions (Bjorn Lindgren
882 <bjorn.e.lindgren at telia.com>).
883 - added MPEG demuxer (MPEG-1 and 2 compatible).
885 - added prototype RM demuxer
886 - added AC3 decoding (done with libac3 by Aaron Holtzman)
887 - added decoding codec parameter guessing (.e.g. for MPEG, because the
888 header does not include them)
889 - fixed header generation in MPEG-1, AVI and ASF muxer: wmplayer can now
890 play them (only tested video)
891 - fixed H.263 white bug
892 - fixed phase rounding in img resample filter
893 - add MMX code for polyphase img resample filter
894 - added CPU autodetection
895 - added generic title/author/copyright/comment string handling (ASF and RM
897 - added SWF demux to extract MP3 track (not usable yet because no MP3
899 - added fractional frame rate support
900 - codecs are no longer searched by read_header() (should fix ffserver
906 - BGR24 patch (initial patch by Jeroen Vreeken <pe1rxq at amsat.org>)
907 - fixed raw yuv output
908 - added motion rounding support in MPEG-4
909 - fixed motion bug rounding in MSMPEG4
910 - added B-frame handling in video core
911 - added full MPEG-1 decoding support
912 - added partial (frame only) MPEG-2 support
913 - changed the FOURCC code for H.263 to "U263" to be able to see the
914 +AVI/H.263 file with the UB Video H.263+ decoder. MPlayer works with
915 this +codec ;) (JuanJo).
916 - Halfpel motion estimation after MB type selection (JuanJo)
917 - added pgm and .Y.U.V output format
918 - suppressed 'img:' protocol. Simply use: /tmp/test%d.[pgm|Y] as input or
920 - added pgmpipe I/O format (original patch from Martin Aumueller
921 <lists at reserv.at>, but changed completely since we use a format
922 instead of a protocol)
927 - added H.263/MPEG-4/MSMPEG4 decoding support. MPEG-4 decoding support
928 (for OpenDivX) is almost complete: 8x8 MVs and rounding are
929 missing. MSMPEG4 support is complete.
930 - added prototype MPEG-1 decoder. Only I- and P-frames handled yet (it
931 can decode ffmpeg MPEGs :-)).
932 - added libavcodec API documentation (see apiexample.c).
933 - fixed image polyphase bug (the bottom of some images could be
935 - added support for non clipped motion vectors (decoding only)
936 and image sizes non-multiple of 16
937 - added support for AC prediction (decoding only)
938 - added file overwrite confirmation (can be disabled with -y)
939 - added custom size picture to H.263 using H.263+ (Juanjo)
944 - added MSMPEG4 (aka DivX) compatible encoder. Changed default codec
945 of AVI and ASF to DIV3.
946 - added -me option to set motion estimation method
947 (default=log). suppressed redundant -hq option.
948 - added options -acodec and -vcodec to force a given codec (useful for
951 - improved dct_quantize speed
952 - factorized some motion estimation code
957 - removing grab code from ffserver and moved it to ffmpeg. Added
958 multistream support to ffmpeg.
959 - added timeshifting support for live feeds (option ?date=xxx in the
961 - added high quality image resize code with polyphase filter (need
962 mmx/see optimization). Enable multiple image size support in ffserver.
963 - added multi live feed support in ffserver
964 - suppressed master feature from ffserver (it should be done with an
965 external program which opens the .ffm url and writes it to another
967 - added preliminary support for video stream parsing (WAV and AVI half
968 done). Added proper support for audio/video file conversion in
970 - added preliminary support for video file sending from ffserver
971 - redesigning I/O subsystem: now using URL based input and output
973 - added WAV format support
974 - added "tty user interface" to ffmpeg to stop grabbing gracefully
975 - added MMX/SSE optimizations to SAD (Sums of Absolutes Differences)
976 (Juan J. Sierralta P. a.k.a. "Juanjo" <juanjo at atmlab.utfsm.cl>)
977 - added MMX DCT from mpeg2_movie 1.5 (Juanjo)
978 - added new motion estimation algorithms, log and phods (Juanjo)
979 - changed directories: libav for format handling, libavcodec for
985 - added stereo in MPEG audio encoder
990 - added 'high quality' mode which use motion vectors. It can be used in
991 real time at low resolution.
992 - fixed rounding problems which caused quality problems at high
993 bitrates and large GOP size
996 version 0.3.2: small fixes
1002 version 0.3.1: added avi/divx support
1005 - added MPEG-4 codec compatible with OpenDivX. It is based on the H.263 codec
1006 - added sound for flash format (not tested)
1009 version 0.3: initial public release