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 - Direct3D11-accelerated decoding
16 - DXVA2-accelerated HEVC decoding
17 - AAC ELD 480 decoding
18 - Intel QSV-accelerated H.264 decoding
19 - DSS SP decoder and DSS demuxer
20 - RTP depacketizer for AC3 payload format (RFC 4184)
21 - RTP depacketizer for loss tolerant payload format for MP3 audio (RFC 5219)
22 - RTP depacketizer for DV (RFC 6469)
24 - RTP depacketization of T.140 text (RFC 4103)
25 - VP9 RTP payload format (draft 0) experimental depacketizer
27 - DTS lossless extension (XLL) decoding (not lossless, disabled by default)
28 - Intel QSV-accelerated H.264 encoding
29 - MMAL-accelerated H.264 decoding
30 - DTS decoding through libdcadec
31 - Canopus HQ/HQA decoder
32 - Automatically rotate videos based on metadata in avconv
33 - improved Quickdraw compatibility
34 - NVIDIA NVENC-accelerated H.264 and HEVC encoding support
35 - Multipart JPEG demuxer
36 - Support the extended vp9 profiles in the libvpx wrapper
37 - Hap decoder and encoder
38 - DirectDraw Surface image/texture decoder
39 - rewritten ASF demuxer
40 - Go2Meeting decoding support
41 - Intel QSV-accelerated MPEG-2 video and HEVC encoding
42 - bitstream filter for converting HEVC from MP4 to Annex B
43 - Intel QSV-accelerated MPEG-2 video and HEVC decoding
44 - Support DNx100 (1440x1080@8)
46 - Screenpresso SPV1 decoding
47 - zero-copy Intel QSV transcoding in avconv
48 - libkvazaar HEVC encoder
49 - innoHeim/Rsupport Screen Capture Codec decoder
50 - support encoding 16-bit RLE SGI images
55 - shuffleplanes filter
56 - replaygain data export
57 - Alias PIX image encoder and decoder
58 - BRender PIX image decoder
59 - Amazing Studio PAF playback support
61 - BMP standalone parser
62 - OpenEXR image decoder
63 - support encoding and decoding 4-channel SGI images
64 - support decoding 16-bit RLE SGI images
66 - LucasArts SMUSH SANM video decoder
67 - LucasArts SMUSH VIMA audio decoder (ADPCM)
68 - LucasArts SMUSH demuxer
69 - MP2 encoding via TwoLAME
71 - Silicon Graphics RLE 8-bit video decoder
72 - Silicon Graphics Motion Video Compressor 1 & 2 decoder
73 - Silicon Graphics Movie demuxer
74 - On2 AVC (Audio for Video) decoder
75 - support for decoding through DXVA2 in avconv
76 - libbs2b-based stereo-to-binaural audio filter
78 - display matrix export and rotation API
79 - drop avserver, it was unmaintained for years and largely broken
81 - request Icecast metadata by default
82 - support for using metadata in stream specifiers in avtools
88 - support ID3v2 tags in ASF files
89 - reference-counting for AVFrame and AVPacket data
90 - avconv now fails when input options are used for output file
92 - avconv options -filter_script and -filter_complex_script, which allow a
93 filtergraph description to be read from a file
94 - uniform options syntax across all filters
97 - asetpts filter (same as setpts, but for audio)
98 - trim and atrim filters
99 - avconv -t and -ss (output-only) options are now sample-accurate when
101 - Matroska muxer can now put the index at the beginning of the file.
102 - avconv -deinterlace option removed, the yadif filter should be used instead
103 - Apple Intermediate Codec decoder
104 - Escape 130 video decoder
105 - support for slice multithreading in libavfilter
106 - VC-1 interlaced B-frame support
107 - support for WavPack muxing (raw and in Matroska)
109 - WavPack encoding through libwavpack
110 - Added the -n parameter to avconv
112 - when transcoding with avconv (i.e. not streamcopying), -ss is now accurate
113 even when used as an input option. Previous behavior can be restored with
114 the -noaccurate_seek option.
115 - avconv -t option can now be used for inputs, to limit the duration of
116 data read from an input file
117 - Voxware MetaSound decoder
119 - Error Resilient AAC syntax (ER AAC LC) decoding
120 - Low Delay AAC (ER AAC LD) decoding
121 - mux chapters in ASF files
122 - Opus in Ogg demuxing
123 - Enhanced Low Delay AAC (ER AAC ELD) decoding (no LD SBR support)
125 - HNM version 4 demuxer and video decoder
127 - raw HEVC, HEVC in MOV/MP4, HEVC in Matroska, HEVC in MPEG-TS demuxing
128 - remove avplay -vismv option, which has not worked for a long time
130 - setsar/setdar filters now support variables in ratio expressions
131 - dar variable in the scale filter now returns the actual DAR (i.e. a * sar)
133 - support for decoding through VDPAU in avconv (the -hwaccel option)
134 - remove mp3_header_(de)compress bitstream filters
135 - stereoscopic 3d metadata handling
136 - png standalone parser
137 - WebP encoding via libwebp
140 - Mirillis FIC video decoder
142 - compand audio filter
146 - av_basename and av_dirname
147 - adobe and limelight publisher authentication in RTMP
148 - VDPAU hardware acceleration through normal hwaccel
153 - ashowinfo audio filter
154 - 24-bit FLAC encoding
155 - audio volume filter
156 - deprecated the avconv -vol option. the volume filter is to be used instead.
157 - multi-channel ALAC encoding up to 7.1
158 - TAK demuxer, parser, and decoder
159 - adaptive frame-level multithreading for H.264
163 - metadata (INFO tag) support in WAV muxer
164 - support for building DLLs using MSVC
165 - remove avserver daemon mode
166 - support building on the Plan 9 operating system
167 - ffv1: support version 1.3
172 - XWD encoder and decoder
173 - Support for fragmentation in the mov/mp4 muxer
174 - ISMV (Smooth Streaming) muxer
175 - CDXL demuxer and decoder
176 - Apple ProRes encoder
177 - Sun Rasterfile Encoder
179 - ID3v2 attached pictures reading and writing
180 - WMA Lossless decoder
182 - RealAudio Lossless decoder
184 - drop support for avconv without libavfilter
185 - add libavresample audio conversion library
186 - audio filters support in libavfilter and avconv
190 - avprobe output is now standard INI or JSON. The old format can still
191 be used with -of old.
192 - Indeo Audio decoder
193 - channelsplit audio filter
194 - RTMPT protocol support
195 - iLBC encoding/decoding via libilbc
196 - Microsoft Screen 1 decoder
198 - audio channel mapping filter
199 - Microsoft ATC Screen decoder
201 - TechSmith Screen Codec 2 decoder
202 - AAC encoding via libfdk-aac
203 - Microsoft Expression Encoder Screen decoder
204 - RTMPS protocol support
205 - RTMPTS protocol support
206 - JPEG 2000 encoding support through OpenJPEG
207 - G.723.1 demuxer and decoder
208 - RTMPE protocol support
209 - RTMPTE protocol support
210 - Canopus Lossless Codec decoder
211 - avconv -shortest option is now per-output file,
212 -pass and -passlogfile are now per-output stream
214 - Microsoft Screen 2 decoder
215 - RTP depacketization of JPEG
216 - Smooth Streaming live segmenter muxer
217 - RTP packetization of JPEG
218 - Opus decoder and encoder using libopus
219 - remove -same_quant, it hasn't worked for years
220 - support for building with MSVC
231 - Automatic thread count based on detection number of (available) CPU cores
232 - Deprecate libpostproc. If desired, the switch --enable-postproc will
233 enable it but it may be removed in a later Libav release.
234 - rv34: frame-level multi-threading
235 - optimized iMDCT transform on x86 using SSE for for mpegaudiodec
241 - Flash Screen Video 2 decoder
242 - ffplay/ffprobe/ffserver renamed to avplay/avprobe/avserver
243 - ffmpeg deprecated, added avconv, which is almost the same for now, except
244 for a few incompatible changes in the options, which will hopefully make them
245 easier to use. The changes are:
246 * The options placement is now strictly enforced! While in theory the
247 options for ffmpeg should be given in [input options] -i INPUT [output
248 options] OUTPUT order, in practice it was possible to give output options
249 before the -i and it mostly worked. Except when it didn't - the behavior was
250 a bit inconsistent. In avconv, it is not possible to mix input and output
251 options. All non-global options are reset after an input or output filename.
252 * All per-file options are now truly per-file - they apply only to the next
253 input or output file and specifying different values for different files
254 will now work properly (notably -ss and -t options).
255 * All per-stream options are now truly per-stream - it is possible to
256 specify which stream(s) should a given option apply to. See the Stream
257 specifiers section in the avconv manual for details.
258 * In ffmpeg some options (like -newvideo/-newaudio/...) are irregular in the
259 sense that they're specified after the output filename instead of before,
260 like all other options. In avconv this irregularity is removed, all options
261 apply to the next input or output file.
262 * -newvideo/-newaudio/-newsubtitle options were removed. Not only were they
263 irregular and highly confusing, they were also redundant. In avconv the -map
264 option will create new streams in the output file and map input streams to
265 them. E.g. avconv -i INPUT -map 0 OUTPUT will create an output stream for
266 each stream in the first input file.
267 * The -map option now has slightly different and more powerful syntax:
268 + Colons (':') are used to separate file index/stream type/stream index
269 instead of dots. Comma (',') is used to separate the sync stream instead
270 of colon.. This is done for consistency with other options.
271 + It's possible to specify stream type. E.g. -map 0:a:2 creates an
272 output stream from the third input audio stream.
273 + Omitting the stream index now maps all the streams of the given type,
274 not just the first. E.g. -map 0:s creates output streams for all the
275 subtitle streams in the first input file.
276 + Since -map can now match multiple streams, negative mappings were
277 introduced. Negative mappings disable some streams from an already
278 defined map. E.g. '-map 0 -map -0:a:1' means 'create output streams for
279 all the stream in the first input file, except for the second audio
281 * There is a new option -c (or -codec) for choosing the decoder/encoder to
282 use, which allows to precisely specify target stream(s) consistently with
283 other options. E.g. -c:v lib264 sets the codec for all video streams, -c:a:0
284 libvorbis sets the codec for the first audio stream and -c copy copies all
285 the streams without reencoding. Old -vcodec/-acodec/-scodec options are now
287 * It is now possible to precisely specify which stream should an AVOption
288 apply to. E.g. -b:v:0 2M sets the bitrate for the first video stream, while
289 -b:a 128k sets the bitrate for all audio streams. Note that the old -ab 128k
290 syntax is deprecated and will stop working soon.
291 * -map_chapters now takes only an input file index and applies to the next
292 output file. This is consistent with how all the other options work.
293 * -map_metadata now takes only an input metadata specifier and applies to
294 the next output file. Output metadata specifier is now part of the option
295 name, similarly to the AVOptions/map/codec feature above.
296 * -metadata can now be used to set metadata on streams and chapters, e.g.
297 -metadata:s:1 language=eng sets the language of the first stream to 'eng'.
298 This made -vlang/-alang/-slang options redundant, so they were removed.
299 * -qscale option now uses stream specifiers and applies to all streams, not
300 just video. I.e. plain -qscale number would now apply to all streams. To get
301 the old behavior, use -qscale:v. Also there is now a shortcut -q for -qscale
302 and -aq is now an alias for -q:a.
303 * -vbsf/-absf/-sbsf options were removed and replaced by a -bsf option which
304 uses stream specifiers. Use -bsf:v/a/s instead of the old options.
305 * -itsscale option now uses stream specifiers, so its argument is only the
307 * -intra option was removed, use -g 0 for the same effect.
308 * -psnr option was removed, use -flags +psnr for the same effect.
309 * -vf option is now an alias to the new -filter option, which uses stream specifiers.
310 * -vframes/-aframes/-dframes options are now aliases to the new -frames option.
311 * -vtag/-atag/-stag options are now aliases to the new -tag option.
313 - Windows Media Image decoder
317 - libcdio-paranoia input device for audio CD grabbing
319 - Apple ProRes decoder
320 - CELT in Ogg demuxing
321 - VC-1 interlaced decoding
322 - lut, lutrgb, and lutyuv filters
325 - Speex encoding via libspeex
326 - 4:2:2 H.264 decoding support
327 - 4:2:2 and 4:4:4 H.264 encoding with libx264
328 - Pulseaudio input device
329 - replacement Indeo 3 decoder
330 - TLS/SSL and HTTPS protocol support
331 - AVOptions API rewritten and documented
332 - most of CODEC_FLAG2_*, some CODEC_FLAG_* and many codec-specific fields in
333 AVCodecContext deprecated. Codec private options should be used instead.
334 - Properly working defaults in libx264 wrapper, support for native presets.
335 - Encrypted OMA files support
336 - Discworld II BMV decoding support
338 - OS X Video Decoder Acceleration (VDA) support
339 - CRI ADX audio format muxer and demuxer
340 - Playstation Portable PMP format demuxer
341 - PCM format support in OMA demuxer
343 - Dxtory capture format decoder
344 - v410 QuickTime uncompressed 4:4:4 10-bit encoder and decoder
346 - Simple segmenting muxer
353 - E-AC-3 audio encoder
354 - ac3enc: add channel coupling support
355 - floating-point sample format support for (E-)AC-3, DCA, AAC, Vorbis decoders
356 - H.264/MPEG frame-level multithreading
357 - av_metadata_* functions renamed to av_dict_* and moved to libavutil
358 - 4:4:4 H.264 decoding support
359 - 10-bit H.264 optimizations for x86
360 - bump libswscale for recently reported ABI break
365 - VP8 frame-level multithreading
366 - NEON optimizations for VP8
367 - removed a lot of deprecated API cruft
368 - FFT and IMDCT optimizations for AVX (Sandy Bridge) processors
370 - SMPTE 302M AES3 audio decoder
371 - ffmpeg no longer quits after the 'q' key is pressed; use 'ctrl+c' instead
372 - 9bit and 10bit per sample support in the H.264 decoder
377 - WebM support in Matroska de/muxer
378 - low overhead Ogg muxing
380 - VP8 de/encoding via libvpx
381 - Demuxer for On2's IVF format
382 - Pictor/PC Paint decoder
384 - libfaad2 wrapper removed
385 - DTS-ES extension (XCh) decoding support
387 - RTSP tunneling over HTTP
388 - RTP depacketization of SVQ3
389 - -strict inofficial replaced by -strict unofficial
390 - ffplay -exitonkeydown and -exitonmousedown options added
391 - native GSM / GSM MS decoder
392 - RTP depacketization of QDM2
393 - ANSI/ASCII art playback system
394 - Lego Mindstorms RSO de/muxer
395 - SubRip subtitle file muxer and demuxer
396 - Chinese AVS encoding via libxavs
397 - ffprobe -show_packets option added
398 - RTP packetization of Theora and Vorbis
399 - RTP depacketization of MP4A-LATM
400 - RTP packetization and depacketization of VP8
402 - Apple HTTP Live Streaming demuxer
405 - G.722 ADPCM audio encoder/decoder
408 - frei0r wrapper filter
409 - change crop filter syntax to width:height:x:y
410 - make the crop filter accept parametric expressions
411 - make ffprobe accept AVFormatContext options
414 - Demuxer for Leitch/Harris' VR native stream format (LXF)
415 - RTP depacketization of the X-QT QuickTime format
416 - SAP (Session Announcement Protocol, RFC 2974) muxer and demuxer
418 - ffmpeg -crop* options removed
419 - transpose filter added
420 - ffmpeg -force_key_frames option added
421 - demuxer for receiving raw rtp:// URLs without an SDP description
422 - single stream LATM/LOAS decoder
423 - setpts filter added
424 - Win64 support for optimized x86 assembly functions
425 - MJPEG/AVI1 to JPEG/JFIF bitstream filter
426 - ASS subtitle encoder and decoder
427 - IEC 61937 encapsulation for E-AC-3, TrueHD, DTS-HD (for HDMI passthrough)
428 - overlay filter added
429 - rename aspect filter to setdar, and pixelaspect to setsar
431 - Mobotix .mxg demuxer
432 - frei0r source added
433 - hqdn3d filter added
434 - RTP depacketization of QCELP
436 - gradfun filter added
438 - replace the ocv_smooth filter with a more generic ocv filter
439 - Windows Televison (WTV) demuxer
440 - FFmpeg metadata format muxer and demuxer
441 - SubRip (srt) subtitle decoder
442 - floating-point AC-3 encoder added
444 - ffmpeg -copytb option added
446 - Wing Commander IV movies decoder added
448 - Bink version 'b' audio and video decoder
449 - Bitmap Brothers JV playback system
450 - Apple HTTP Live Streaming protocol handler
451 - sndio support for playback and record
452 - Linux framebuffer input device added
453 - Chronomaster DFA decoder
454 - Mobotix MxPEG decoder
455 - AAC encoding via libvo-aacenc
456 - AMR-WB encoding via libvo-amrwbenc
458 - fieldorder video filter added
463 - PB-frame decoding for H.263
464 - deprecated vhook subsystem removed
465 - deprecated old scaler removed
467 - Alpha channel scaler
469 - RTP packetization of H.263
470 - RTP packetization of AMR
471 - RTP depacketization of Vorbis
472 - CorePNG decoding support
473 - Cook multichannel decoding support
474 - introduced avlanguage helpers in libavformat
475 - 8088flex TMV demuxer and decoder
476 - per-stream language-tags extraction in asfdec
477 - V210 decoder and encoder
478 - remaining GPL parts in AC-3 decoder converted to LGPL
480 - SoX native format muxer and demuxer
481 - AMR-NB decoding/encoding, AMR-WB decoding via OpenCORE libraries
483 - Electronic Arts Madcow decoder
484 - DivX (XSUB) subtitle encoder
485 - nonfree libamr support for AMR-NB/WB decoding/encoding removed
486 - experimental AAC encoder
487 - RTP depacketization of ASF and RTSP from WMS servers
488 - RTMP support in libavformat
489 - noX handling for OPT_BOOL X options
491 - IEC-61937 compatible Muxer
493 - Bluray (PGS) subtitle decoder
494 - LPCM support in MPEG-TS (HDMV RID as found on Blu-ray disks)
496 - Core Audio Format demuxer
498 - MD STUDIO audio demuxer
499 - RF64 support in WAV demuxer
500 - MPEG-4 Audio Lossless Coding (ALS) decoder
501 - -formats option split into -formats, -codecs, -bsfs, and -protocols
503 - CDG demuxer and decoder
505 - Auravision Aura 1 and 2 decoders
506 - Deluxe Paint Animation playback system
508 - Adobe Filmstrip muxer and demuxer
509 - RTP depacketization of H.263
510 - Bink demuxer and audio/video decoders
511 - enable symbol versioning by default for linkers that support it
512 - IFF PBM/ILBM bitmap decoder
515 - RTP depacketization of AMR
521 - Kega Game Video (KGV1) decoder
522 - VorbisComment writing for FLAC, Ogg FLAC and Ogg Speex files
523 - RTP depacketization of Theora
524 - HTTP Digest authentication
525 - RTMP/RTMPT/RTMPS/RTMPE/RTMPTE protocol support via librtmp
526 - Psygnosis YOP demuxer and video decoder
527 - spectral extension support in the E-AC-3 decoder
528 - unsharp video filter
529 - RTP hinting in the mov/3gp/mp4 muxer
530 - Dirac in Ogg demuxing
531 - seek to keyframes in Ogg
532 - 4:2:2 and 4:4:4 Theora decoding
533 - 35% faster VP3/Theora decoding
534 - faster AAC decoding
535 - faster H.264 decoding
536 - RealAudio 1.0 (14.4K) encoder
541 - DV50 AKA DVCPRO50 encoder, decoder, muxer and demuxer
542 - TechSmith Camtasia (TSCC) video decoder
543 - IBM Ultimotion (ULTI) video decoder
544 - Sierra Online audio file demuxer and decoder
545 - Apple QuickDraw (qdrw) video decoder
546 - Creative ADPCM audio decoder (16 bits as well as 8 bits schemes)
547 - Electronic Arts Multimedia (WVE/UV2/etc.) file demuxer
548 - Miro VideoXL (VIXL) video decoder
549 - H.261 video encoder
551 - Nullsoft Video (NSV) file demuxer
552 - Shorten audio decoder
554 - Apple Lossless Audio Codec (ALAC) decoder
555 - Winnov WNV1 video decoder
556 - Autodesk Animator Studio Codec (AASC) decoder
557 - Indeo 2 video decoder
558 - Fraps FPS1 video decoder
559 - Snow video encoder/decoder
560 - Sonic audio encoder/decoder
561 - Vorbis audio decoder
562 - Macromedia ADPCM decoder
563 - Duck TrueMotion 2 video decoder
564 - support for decoding FLX and DTA extensions in FLIC files
565 - H.264 custom quantization matrices support
566 - ffserver fixed, it should now be usable again
568 - Real Cooker audio decoder
569 - TrueSpeech audio decoder
570 - WMA2 audio decoder fixed, now all files should play correctly
571 - RealAudio 14.4 and 28.8 decoders fixed
573 - build system improvements
574 - tabs and trailing whitespace removed from the codebase
575 - CamStudio video decoder
576 - AIFF/AIFF-C audio format, encoding and decoding
577 - ADTS AAC file reading and writing
578 - Creative VOC file reading and writing
579 - American Laser Games multimedia (*.mm) playback system
580 - Zip Motion Blocks Video decoder
581 - improved Theora/VP3 decoder
582 - True Audio (TTA) decoder
583 - AVS demuxer and video decoder
585 - Smacker demuxer and decoder
586 - NuppelVideo/MythTV demuxer and RTjpeg decoder
588 - MPEG-2 intra VLC support
589 - MPEG-2 4:2:2 encoder
590 - Flash Screen Video decoder
592 - Chinese AVS decoder
595 - VC-1/WMV3/WMV9 video decoder
598 - VMware video decoder
601 - WavPack lossless audio decoder
602 - Targa (.TGA) picture decoder
603 - Vorbis audio encoder
604 - Delphine Software .cin demuxer/audio and video decoder
605 - Tiertex .seq demuxer/video decoder
607 - TIFF picture encoder and decoder
608 - GIF picture decoder
609 - Intel Music Coder decoder
610 - Zip Motion Blocks Video encoder
612 - Flash Screen Video encoder
613 - Theora encoding via libtheora
616 - GSM-MS encoder and decoder
618 - DXA demuxer and decoder
620 - Gamecube movie (.THP) playback system
621 - Blackfin optimizations
622 - Interplay C93 demuxer and video decoder
623 - Bethsoft VID demuxer and video decoder
626 - V.Flash PTX decoder
627 - RoQ muxer, RoQ audio encoder
628 - Renderware TXD demuxer and decoder
629 - extern C declarations for C++ removed from headers
630 - sws_flags command line option
634 - OS/2 support removed and restored again
637 - additional SPARC (VIS) optimizations
639 - slice-based parallel H.264 decoding
640 - Monkey's Audio demuxer and decoder
641 - AMV audio and video decoder
643 - H.264 PAFF decoding
644 - Nellymoser ASAO decoder
645 - Beam Software SIFF demuxer and decoder
646 - libvorbis Vorbis decoding removed in favor of native decoder
647 - IntraX8 (J-Frame) subdecoder for WMV2 and VC-1
648 - Ogg (Theora, Vorbis and FLAC) muxer
649 - The "device" muxers and demuxers are now in a new libavdevice library
650 - PC Paintbrush PCX decoder
651 - Sun Rasterfile decoder
652 - TechnoTrend PVA demuxer
653 - Linux Media Labs MPEG-4 (LMLM4) demuxer
654 - AVM2 (Flash 9) SWF muxer
655 - QT variant of IMA ADPCM encoder
657 - iPod/iPhone compatible mp4 muxer
659 - MSN TCP Webcam stream demuxer
660 - RL2 demuxer / decoder
663 - non-recursive Makefiles
665 - MAXIS EA XA (.xa) demuxer / decoder
669 - Electronic Arts CMV decoder
670 - Motion Pixels Video decoder
671 - Motion Pixels MVI demuxer
672 - removed animated GIF decoder/demuxer
673 - D-Cinema audio muxer
674 - Electronic Arts TGV decoder
675 - Apple Lossless Audio Codec (ALAC) encoder
677 - floating point PCM encoder/decoder
679 - DV100 AKA DVCPRO HD decoder and demuxer
680 - E-AC-3 support added to AC-3 decoder
681 - Nellymoser ASAO encoder
682 - ASS and SSA demuxer and muxer
683 - liba52 wrapper removed
684 - SVQ3 watermark decoding support
685 - Speex decoding via libspeex
686 - Electronic Arts TGQ decoder
688 - QCELP / PureVoice decoder
690 - hybrid WavPack support
691 - R3D REDCODE demuxer
692 - ALSA support for playback and record
693 - Electronic Arts TQI decoder
694 - OpenJPEG based JPEG 2000 decoder
695 - NC (NC4600) camera file demuxer
696 - Gopher client support
698 - generic metadata API
703 - DV encoder, DV muxer
704 - Microsoft RLE video decoder
705 - Microsoft Video-1 decoder
706 - Apple Animation (RLE) decoder
707 - Apple Graphics (SMC) decoder
708 - Apple Video (RPZA) decoder
710 - Sega FILM (CPK) file demuxer
711 - Westwood multimedia support (VQA & AUD files)
712 - Id Quake II CIN playback support
714 - FLIC playback support
715 - RealVideo 2.0 (RV20) decoder
716 - Duck TrueMotion v1 (DUCK) video decoder
717 - Sierra VMD demuxer and video decoder
718 - MSZH and ZLIB decoder support
722 - rate distortion optimal cbp support
723 - rate distorted optimal ac prediction for MPEG-4
724 - rate distorted optimal lambda->qp support
725 - AAC encoding with libfaac
726 - Sunplus JPEG codec (SP5X) support
727 - use Lagrange multipler instead of QP for ratecontrol
728 - Theora/VP3 decoding support
729 - XA and ADX ADPCM codecs
730 - export MPEG-2 active display area / pan scan
731 - Add support for configuring with IBM XLC
732 - floating point AAN DCT
733 - initial support for zygo video (not complete)
735 - new audio/video parser API
737 - av_read_frame() and av_seek_frame() support
738 - missing last frame fixes
739 - seek by mouse in ffplay
740 - noise reduction of DCT coefficients
741 - H.263 OBMC & 4MV support
742 - H.263 alternative inter vlc support
744 - H.263 slice structured mode
745 - interlaced DCT support for MPEG-2 encoding
746 - stuffing to stay above min_bitrate
747 - MB type & QP visualization
748 - frame stepping for ffplay
749 - interlaced motion estimation
750 - alternate scantable support
751 - SVCD scan offset support
754 - quantizer noise shaping
755 - G.726 ADPCM audio codec
757 - multithreaded/SMP motion estimation
758 - multithreaded/SMP encoding for MPEG-1/MPEG-2/MPEG-4/H.263
759 - multithreaded/SMP decoding for MPEG-2
761 - Metrowerks CodeWarrior suppport
762 - H.263+ custom pcf support
763 - nicer output for 'ffmpeg -formats'
765 - SGI image format, encoding and decoding
766 - H.264 loop filter support
767 - H.264 CABAC support
768 - nicer looking arrows for the motion vector visualization
769 - improved VCD support
770 - audio timestamp drift compensation
771 - MPEG-2 YUV 422/444 support
772 - polyphase kaiser windowed sinc and blackman nuttall windowed sinc audio resample
773 - better image scaling
775 - correctly interleave packets during encoding
776 - VIS optimized motion compensation
777 - intra_dc_precision>0 encoding support
778 - support reuse of motion vectors/MB types/field select values of the source video
779 - more accurate deblock filter
781 - many optimizations and bugfixes
782 - FunCom ISS audio file demuxer and according ADPCM decoding
787 - MPEG-2 video encoding (Michael)
788 - Id RoQ playback subsystem (Mike Melanson and Tim Ferguson)
789 - Wing Commander III Movie (.mve) file playback subsystem (Mike Melanson
791 - Xan DPCM audio decoder (Mario Brito)
792 - Interplay MVE playback subsystem (Mike Melanson)
793 - Duck DK3 and DK4 ADPCM audio decoders (Mike Melanson)
798 - RealAudio 1.0 (14_4) and 2.0 (28_8) native decoders. Author unknown, code from mplayerhq
799 (originally from public domain player for Amiga at http://www.honeypot.net/audio)
800 - current version now also compiles with older GCC (Fabrice)
801 - 4X multimedia playback system including 4xm file demuxer (Mike
802 Melanson), and 4X video and audio codecs (Michael)
803 - Creative YUV (CYUV) decoder (Mike Melanson)
804 - FFV1 codec (our very simple lossless intra only codec, compresses much better
805 than HuffYUV) (Michael)
806 - ASV1 (Asus), H.264, Intel indeo3 codecs have been added (various)
807 - tiny PNG encoder and decoder, tiny GIF decoder, PAM decoder (PPM with
808 alpha support), JPEG YUV colorspace support. (Fabrice Bellard)
809 - ffplay has been replaced with a newer version which uses SDL (optionally)
810 for multiplatform support (Fabrice)
811 - Sorenson Version 3 codec (SVQ3) support has been added (decoding only) - donated
813 - AMR format has been added (Johannes Carlsson)
814 - 3GP support has been added (Johannes Carlsson)
815 - VP3 codec has been added (Mike Melanson)
816 - more MPEG-1/2 fixes
817 - better multiplatform support, MS Visual Studio fixes (various)
818 - AltiVec optimizations (Magnus Damn and others)
819 - SH4 processor support has been added (BERO)
820 - new public interfaces (avcodec_get_pix_fmt) (Roman Shaposhnick)
821 - VOB streaming support (Brian Foley)
822 - better MP3 autodetection (Andriy Rysin)
823 - qpel encoding (Michael)
824 - 4mv+b frames encoding finally fixed (Michael)
825 - chroma ME (Michael)
826 - 5 comparison functions for ME (Michael)
827 - B-frame encoding speedup (Michael)
828 - WMV2 codec (unfinished - Michael)
829 - user specified diamond size for EPZS (Michael)
830 - Playstation STR playback subsystem, still experimental (Mike and Michael)
831 - ASV2 codec (Michael)
832 - CLJR decoder (Alex)
834 .. And lots more new enhancements and fixes.
839 - completely new integer only MPEG audio layer 1/2/3 decoder rewritten
841 - Recoded DCT and motion vector search with gcc (no longer depends on nasm)
842 - fix quantization bug in AC3 encoder
843 - added PCM codecs and format. Corrected WAV/AVI/ASF PCM issues
844 - added prototype ffplay program
845 - added GOB header parsing on H.263/H.263+ decoder (Juanjo)
846 - bug fix on MCBPC tables of H.263 (Juanjo)
847 - bug fix on DC coefficients of H.263 (Juanjo)
848 - added Advanced Prediction Mode on H.263/H.263+ decoder (Juanjo)
849 - now we can decode H.263 streams found in QuickTime files (Juanjo)
850 - now we can decode H.263 streams found in VIVO v1 files(Juanjo)
851 - preliminary RTP "friendly" mode for H.263/H.263+ coding. (Juanjo)
852 - added GOB header for H.263/H.263+ coding on RTP mode (Juanjo)
853 - now H.263 picture size is returned on the first decoded frame (Juanjo)
854 - added first regression tests
855 - added MPEG-2 TS demuxer
856 - new demux API for libav
857 - more accurate and faster IDCT (Michael)
858 - faster and entropy-controlled motion search (Michael)
859 - two pass video encoding (Michael)
860 - new video rate control (Michael)
861 - added MSMPEG4V1, MSMPEGV2 and WMV1 support (Michael)
862 - great performance improvement of video encoders and decoders (Michael)
863 - new and faster bit readers and vlc parsers (Michael)
864 - high quality encoding mode: tries all macroblock/VLC types (Michael)
865 - added DV video decoder
866 - preliminary RTP/RTSP support in ffserver and libavformat
867 - H.263+ AIC decoding/encoding support (Juanjo)
868 - VCD MPEG-PS mode (Juanjo)
869 - PSNR stuff (Juanjo)
870 - simple stats output (Juanjo)
871 - 16-bit and 15-bit RGB/BGR/GBR support (Bisqwit)
876 - some header fixes (Zdenek Kabelac <kabi at informatics.muni.cz>)
877 - many MMX optimizations (Nick Kurshev <nickols_k at mail.ru>)
878 - added configure system (actually a small shell script)
879 - added MPEG audio layer 1/2/3 decoding using LGPL'ed mpglib by
880 Michael Hipp (temporary solution - waiting for integer only
882 - fixed VIDIOCSYNC interrupt
883 - added Intel H.263 decoding support ('I263' AVI fourCC)
884 - added Real Video 1.0 decoding (needs further testing)
885 - simplified image formats again. Added PGM format (=grey
886 pgm). Renamed old PGM to PGMYUV.
887 - fixed msmpeg4 slice issues (tell me if you still find problems)
888 - fixed OpenDivX bugs with newer versions (added VOL header decoding)
889 - added support for MPlayer interface
890 - added macroblock skip optimization
891 - added MJPEG decoder
892 - added mmx/mmxext IDCT from libmpeg2
893 - added pgmyuvpipe, ppm, and ppm_pipe formats (original patch by Celer
894 <celer at shell.scrypt.net>)
895 - added pixel format conversion layer (e.g. for MJPEG or PPM)
896 - added deinterlacing option
898 - MPEG-4 vol header fixes (Jonathan Marsden <snmjbm at pacbell.net>)
899 - ARM optimizations (Lionel Ulmer <lionel.ulmer at free.fr>).
900 - Windows porting of file converter
901 - added MJPEG raw format (input/ouput)
902 - added JPEG image format support (input/output)
907 - fixed some std header definitions (Bjorn Lindgren
908 <bjorn.e.lindgren at telia.com>).
909 - added MPEG demuxer (MPEG-1 and 2 compatible).
911 - added prototype RM demuxer
912 - added AC3 decoding (done with libac3 by Aaron Holtzman)
913 - added decoding codec parameter guessing (.e.g. for MPEG, because the
914 header does not include them)
915 - fixed header generation in MPEG-1, AVI and ASF muxer: wmplayer can now
916 play them (only tested video)
917 - fixed H.263 white bug
918 - fixed phase rounding in img resample filter
919 - add MMX code for polyphase img resample filter
920 - added CPU autodetection
921 - added generic title/author/copyright/comment string handling (ASF and RM
923 - added SWF demux to extract MP3 track (not usable yet because no MP3
925 - added fractional frame rate support
926 - codecs are no longer searched by read_header() (should fix ffserver
932 - BGR24 patch (initial patch by Jeroen Vreeken <pe1rxq at amsat.org>)
933 - fixed raw yuv output
934 - added motion rounding support in MPEG-4
935 - fixed motion bug rounding in MSMPEG4
936 - added B-frame handling in video core
937 - added full MPEG-1 decoding support
938 - added partial (frame only) MPEG-2 support
939 - changed the FOURCC code for H.263 to "U263" to be able to see the
940 +AVI/H.263 file with the UB Video H.263+ decoder. MPlayer works with
941 this +codec ;) (JuanJo).
942 - Halfpel motion estimation after MB type selection (JuanJo)
943 - added pgm and .Y.U.V output format
944 - suppressed 'img:' protocol. Simply use: /tmp/test%d.[pgm|Y] as input or
946 - added pgmpipe I/O format (original patch from Martin Aumueller
947 <lists at reserv.at>, but changed completely since we use a format
948 instead of a protocol)
953 - added H.263/MPEG-4/MSMPEG4 decoding support. MPEG-4 decoding support
954 (for OpenDivX) is almost complete: 8x8 MVs and rounding are
955 missing. MSMPEG4 support is complete.
956 - added prototype MPEG-1 decoder. Only I- and P-frames handled yet (it
957 can decode ffmpeg MPEGs :-)).
958 - added libavcodec API documentation (see apiexample.c).
959 - fixed image polyphase bug (the bottom of some images could be
961 - added support for non clipped motion vectors (decoding only)
962 and image sizes non-multiple of 16
963 - added support for AC prediction (decoding only)
964 - added file overwrite confirmation (can be disabled with -y)
965 - added custom size picture to H.263 using H.263+ (Juanjo)
970 - added MSMPEG4 (aka DivX) compatible encoder. Changed default codec
971 of AVI and ASF to DIV3.
972 - added -me option to set motion estimation method
973 (default=log). suppressed redundant -hq option.
974 - added options -acodec and -vcodec to force a given codec (useful for
977 - improved dct_quantize speed
978 - factorized some motion estimation code
983 - removing grab code from ffserver and moved it to ffmpeg. Added
984 multistream support to ffmpeg.
985 - added timeshifting support for live feeds (option ?date=xxx in the
987 - added high quality image resize code with polyphase filter (need
988 mmx/see optimization). Enable multiple image size support in ffserver.
989 - added multi live feed support in ffserver
990 - suppressed master feature from ffserver (it should be done with an
991 external program which opens the .ffm url and writes it to another
993 - added preliminary support for video stream parsing (WAV and AVI half
994 done). Added proper support for audio/video file conversion in
996 - added preliminary support for video file sending from ffserver
997 - redesigning I/O subsystem: now using URL based input and output
999 - added WAV format support
1000 - added "tty user interface" to ffmpeg to stop grabbing gracefully
1001 - added MMX/SSE optimizations to SAD (Sums of Absolutes Differences)
1002 (Juan J. Sierralta P. a.k.a. "Juanjo" <juanjo at atmlab.utfsm.cl>)
1003 - added MMX DCT from mpeg2_movie 1.5 (Juanjo)
1004 - added new motion estimation algorithms, log and phods (Juanjo)
1005 - changed directories: libav for format handling, libavcodec for
1011 - added stereo in MPEG audio encoder
1016 - added 'high quality' mode which use motion vectors. It can be used in
1017 real time at low resolution.
1018 - fixed rounding problems which caused quality problems at high
1019 bitrates and large GOP size
1022 version 0.3.2: small fixes
1028 version 0.3.1: added avi/divx support
1031 - added MPEG-4 codec compatible with OpenDivX. It is based on the H.263 codec
1032 - added sound for flash format (not tested)
1035 version 0.3: initial public release