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
51 - support Apple AVFoundation video capture
52 - G.723.1 muxer and encoder
58 - shuffleplanes filter
59 - replaygain data export
60 - Alias PIX image encoder and decoder
61 - BRender PIX image decoder
62 - Amazing Studio PAF playback support
64 - BMP standalone parser
65 - OpenEXR image decoder
66 - support encoding and decoding 4-channel SGI images
67 - support decoding 16-bit RLE SGI images
69 - LucasArts SMUSH SANM video decoder
70 - LucasArts SMUSH VIMA audio decoder (ADPCM)
71 - LucasArts SMUSH demuxer
72 - MP2 encoding via TwoLAME
74 - Silicon Graphics RLE 8-bit video decoder
75 - Silicon Graphics Motion Video Compressor 1 & 2 decoder
76 - Silicon Graphics Movie demuxer
77 - On2 AVC (Audio for Video) decoder
78 - support for decoding through DXVA2 in avconv
79 - libbs2b-based stereo-to-binaural audio filter
81 - display matrix export and rotation API
82 - drop avserver, it was unmaintained for years and largely broken
84 - request Icecast metadata by default
85 - support for using metadata in stream specifiers in avtools
91 - support ID3v2 tags in ASF files
92 - reference-counting for AVFrame and AVPacket data
93 - avconv now fails when input options are used for output file
95 - avconv options -filter_script and -filter_complex_script, which allow a
96 filtergraph description to be read from a file
97 - uniform options syntax across all filters
100 - asetpts filter (same as setpts, but for audio)
101 - trim and atrim filters
102 - avconv -t and -ss (output-only) options are now sample-accurate when
104 - Matroska muxer can now put the index at the beginning of the file.
105 - avconv -deinterlace option removed, the yadif filter should be used instead
106 - Apple Intermediate Codec decoder
107 - Escape 130 video decoder
108 - support for slice multithreading in libavfilter
109 - VC-1 interlaced B-frame support
110 - support for WavPack muxing (raw and in Matroska)
112 - WavPack encoding through libwavpack
113 - Added the -n parameter to avconv
115 - when transcoding with avconv (i.e. not streamcopying), -ss is now accurate
116 even when used as an input option. Previous behavior can be restored with
117 the -noaccurate_seek option.
118 - avconv -t option can now be used for inputs, to limit the duration of
119 data read from an input file
120 - Voxware MetaSound decoder
122 - Error Resilient AAC syntax (ER AAC LC) decoding
123 - Low Delay AAC (ER AAC LD) decoding
124 - mux chapters in ASF files
125 - Opus in Ogg demuxing
126 - Enhanced Low Delay AAC (ER AAC ELD) decoding (no LD SBR support)
128 - HNM version 4 demuxer and video decoder
130 - raw HEVC, HEVC in MOV/MP4, HEVC in Matroska, HEVC in MPEG-TS demuxing
131 - remove avplay -vismv option, which has not worked for a long time
133 - setsar/setdar filters now support variables in ratio expressions
134 - dar variable in the scale filter now returns the actual DAR (i.e. a * sar)
136 - support for decoding through VDPAU in avconv (the -hwaccel option)
137 - remove mp3_header_(de)compress bitstream filters
138 - stereoscopic 3d metadata handling
139 - png standalone parser
140 - WebP encoding via libwebp
143 - Mirillis FIC video decoder
145 - compand audio filter
149 - av_basename and av_dirname
150 - adobe and limelight publisher authentication in RTMP
151 - VDPAU hardware acceleration through normal hwaccel
156 - ashowinfo audio filter
157 - 24-bit FLAC encoding
158 - audio volume filter
159 - deprecated the avconv -vol option. the volume filter is to be used instead.
160 - multi-channel ALAC encoding up to 7.1
161 - TAK demuxer, parser, and decoder
162 - adaptive frame-level multithreading for H.264
166 - metadata (INFO tag) support in WAV muxer
167 - support for building DLLs using MSVC
168 - remove avserver daemon mode
169 - support building on the Plan 9 operating system
170 - ffv1: support version 1.3
175 - XWD encoder and decoder
176 - Support for fragmentation in the mov/mp4 muxer
177 - ISMV (Smooth Streaming) muxer
178 - CDXL demuxer and decoder
179 - Apple ProRes encoder
180 - Sun Rasterfile Encoder
182 - ID3v2 attached pictures reading and writing
183 - WMA Lossless decoder
185 - RealAudio Lossless decoder
187 - drop support for avconv without libavfilter
188 - add libavresample audio conversion library
189 - audio filters support in libavfilter and avconv
193 - avprobe output is now standard INI or JSON. The old format can still
194 be used with -of old.
195 - Indeo Audio decoder
196 - channelsplit audio filter
197 - RTMPT protocol support
198 - iLBC encoding/decoding via libilbc
199 - Microsoft Screen 1 decoder
201 - audio channel mapping filter
202 - Microsoft ATC Screen decoder
204 - TechSmith Screen Codec 2 decoder
205 - AAC encoding via libfdk-aac
206 - Microsoft Expression Encoder Screen decoder
207 - RTMPS protocol support
208 - RTMPTS protocol support
209 - JPEG 2000 encoding support through OpenJPEG
210 - G.723.1 demuxer and decoder
211 - RTMPE protocol support
212 - RTMPTE protocol support
213 - Canopus Lossless Codec decoder
214 - avconv -shortest option is now per-output file,
215 -pass and -passlogfile are now per-output stream
217 - Microsoft Screen 2 decoder
218 - RTP depacketization of JPEG
219 - Smooth Streaming live segmenter muxer
220 - RTP packetization of JPEG
221 - Opus decoder and encoder using libopus
222 - remove -same_quant, it hasn't worked for years
223 - support for building with MSVC
234 - Automatic thread count based on detection number of (available) CPU cores
235 - Deprecate libpostproc. If desired, the switch --enable-postproc will
236 enable it but it may be removed in a later Libav release.
237 - rv34: frame-level multi-threading
238 - optimized iMDCT transform on x86 using SSE for for mpegaudiodec
244 - Flash Screen Video 2 decoder
245 - ffplay/ffprobe/ffserver renamed to avplay/avprobe/avserver
246 - ffmpeg deprecated, added avconv, which is almost the same for now, except
247 for a few incompatible changes in the options, which will hopefully make them
248 easier to use. The changes are:
249 * The options placement is now strictly enforced! While in theory the
250 options for ffmpeg should be given in [input options] -i INPUT [output
251 options] OUTPUT order, in practice it was possible to give output options
252 before the -i and it mostly worked. Except when it didn't - the behavior was
253 a bit inconsistent. In avconv, it is not possible to mix input and output
254 options. All non-global options are reset after an input or output filename.
255 * All per-file options are now truly per-file - they apply only to the next
256 input or output file and specifying different values for different files
257 will now work properly (notably -ss and -t options).
258 * All per-stream options are now truly per-stream - it is possible to
259 specify which stream(s) should a given option apply to. See the Stream
260 specifiers section in the avconv manual for details.
261 * In ffmpeg some options (like -newvideo/-newaudio/...) are irregular in the
262 sense that they're specified after the output filename instead of before,
263 like all other options. In avconv this irregularity is removed, all options
264 apply to the next input or output file.
265 * -newvideo/-newaudio/-newsubtitle options were removed. Not only were they
266 irregular and highly confusing, they were also redundant. In avconv the -map
267 option will create new streams in the output file and map input streams to
268 them. E.g. avconv -i INPUT -map 0 OUTPUT will create an output stream for
269 each stream in the first input file.
270 * The -map option now has slightly different and more powerful syntax:
271 + Colons (':') are used to separate file index/stream type/stream index
272 instead of dots. Comma (',') is used to separate the sync stream instead
273 of colon.. This is done for consistency with other options.
274 + It's possible to specify stream type. E.g. -map 0:a:2 creates an
275 output stream from the third input audio stream.
276 + Omitting the stream index now maps all the streams of the given type,
277 not just the first. E.g. -map 0:s creates output streams for all the
278 subtitle streams in the first input file.
279 + Since -map can now match multiple streams, negative mappings were
280 introduced. Negative mappings disable some streams from an already
281 defined map. E.g. '-map 0 -map -0:a:1' means 'create output streams for
282 all the stream in the first input file, except for the second audio
284 * There is a new option -c (or -codec) for choosing the decoder/encoder to
285 use, which allows to precisely specify target stream(s) consistently with
286 other options. E.g. -c:v lib264 sets the codec for all video streams, -c:a:0
287 libvorbis sets the codec for the first audio stream and -c copy copies all
288 the streams without reencoding. Old -vcodec/-acodec/-scodec options are now
290 * It is now possible to precisely specify which stream should an AVOption
291 apply to. E.g. -b:v:0 2M sets the bitrate for the first video stream, while
292 -b:a 128k sets the bitrate for all audio streams. Note that the old -ab 128k
293 syntax is deprecated and will stop working soon.
294 * -map_chapters now takes only an input file index and applies to the next
295 output file. This is consistent with how all the other options work.
296 * -map_metadata now takes only an input metadata specifier and applies to
297 the next output file. Output metadata specifier is now part of the option
298 name, similarly to the AVOptions/map/codec feature above.
299 * -metadata can now be used to set metadata on streams and chapters, e.g.
300 -metadata:s:1 language=eng sets the language of the first stream to 'eng'.
301 This made -vlang/-alang/-slang options redundant, so they were removed.
302 * -qscale option now uses stream specifiers and applies to all streams, not
303 just video. I.e. plain -qscale number would now apply to all streams. To get
304 the old behavior, use -qscale:v. Also there is now a shortcut -q for -qscale
305 and -aq is now an alias for -q:a.
306 * -vbsf/-absf/-sbsf options were removed and replaced by a -bsf option which
307 uses stream specifiers. Use -bsf:v/a/s instead of the old options.
308 * -itsscale option now uses stream specifiers, so its argument is only the
310 * -intra option was removed, use -g 0 for the same effect.
311 * -psnr option was removed, use -flags +psnr for the same effect.
312 * -vf option is now an alias to the new -filter option, which uses stream specifiers.
313 * -vframes/-aframes/-dframes options are now aliases to the new -frames option.
314 * -vtag/-atag/-stag options are now aliases to the new -tag option.
316 - Windows Media Image decoder
320 - libcdio-paranoia input device for audio CD grabbing
322 - Apple ProRes decoder
323 - CELT in Ogg demuxing
324 - VC-1 interlaced decoding
325 - lut, lutrgb, and lutyuv filters
328 - Speex encoding via libspeex
329 - 4:2:2 H.264 decoding support
330 - 4:2:2 and 4:4:4 H.264 encoding with libx264
331 - Pulseaudio input device
332 - replacement Indeo 3 decoder
333 - TLS/SSL and HTTPS protocol support
334 - AVOptions API rewritten and documented
335 - most of CODEC_FLAG2_*, some CODEC_FLAG_* and many codec-specific fields in
336 AVCodecContext deprecated. Codec private options should be used instead.
337 - Properly working defaults in libx264 wrapper, support for native presets.
338 - Encrypted OMA files support
339 - Discworld II BMV decoding support
341 - OS X Video Decoder Acceleration (VDA) support
342 - CRI ADX audio format muxer and demuxer
343 - Playstation Portable PMP format demuxer
344 - PCM format support in OMA demuxer
346 - Dxtory capture format decoder
347 - v410 QuickTime uncompressed 4:4:4 10-bit encoder and decoder
349 - Simple segmenting muxer
356 - E-AC-3 audio encoder
357 - ac3enc: add channel coupling support
358 - floating-point sample format support for (E-)AC-3, DCA, AAC, Vorbis decoders
359 - H.264/MPEG frame-level multithreading
360 - av_metadata_* functions renamed to av_dict_* and moved to libavutil
361 - 4:4:4 H.264 decoding support
362 - 10-bit H.264 optimizations for x86
363 - bump libswscale for recently reported ABI break
368 - VP8 frame-level multithreading
369 - NEON optimizations for VP8
370 - removed a lot of deprecated API cruft
371 - FFT and IMDCT optimizations for AVX (Sandy Bridge) processors
373 - SMPTE 302M AES3 audio decoder
374 - ffmpeg no longer quits after the 'q' key is pressed; use 'ctrl+c' instead
375 - 9bit and 10bit per sample support in the H.264 decoder
380 - WebM support in Matroska de/muxer
381 - low overhead Ogg muxing
383 - VP8 de/encoding via libvpx
384 - Demuxer for On2's IVF format
385 - Pictor/PC Paint decoder
387 - libfaad2 wrapper removed
388 - DTS-ES extension (XCh) decoding support
390 - RTSP tunneling over HTTP
391 - RTP depacketization of SVQ3
392 - -strict inofficial replaced by -strict unofficial
393 - ffplay -exitonkeydown and -exitonmousedown options added
394 - native GSM / GSM MS decoder
395 - RTP depacketization of QDM2
396 - ANSI/ASCII art playback system
397 - Lego Mindstorms RSO de/muxer
398 - SubRip subtitle file muxer and demuxer
399 - Chinese AVS encoding via libxavs
400 - ffprobe -show_packets option added
401 - RTP packetization of Theora and Vorbis
402 - RTP depacketization of MP4A-LATM
403 - RTP packetization and depacketization of VP8
405 - Apple HTTP Live Streaming demuxer
408 - G.722 ADPCM audio encoder/decoder
411 - frei0r wrapper filter
412 - change crop filter syntax to width:height:x:y
413 - make the crop filter accept parametric expressions
414 - make ffprobe accept AVFormatContext options
417 - Demuxer for Leitch/Harris' VR native stream format (LXF)
418 - RTP depacketization of the X-QT QuickTime format
419 - SAP (Session Announcement Protocol, RFC 2974) muxer and demuxer
421 - ffmpeg -crop* options removed
422 - transpose filter added
423 - ffmpeg -force_key_frames option added
424 - demuxer for receiving raw rtp:// URLs without an SDP description
425 - single stream LATM/LOAS decoder
426 - setpts filter added
427 - Win64 support for optimized x86 assembly functions
428 - MJPEG/AVI1 to JPEG/JFIF bitstream filter
429 - ASS subtitle encoder and decoder
430 - IEC 61937 encapsulation for E-AC-3, TrueHD, DTS-HD (for HDMI passthrough)
431 - overlay filter added
432 - rename aspect filter to setdar, and pixelaspect to setsar
434 - Mobotix .mxg demuxer
435 - frei0r source added
436 - hqdn3d filter added
437 - RTP depacketization of QCELP
439 - gradfun filter added
441 - replace the ocv_smooth filter with a more generic ocv filter
442 - Windows Televison (WTV) demuxer
443 - FFmpeg metadata format muxer and demuxer
444 - SubRip (srt) subtitle decoder
445 - floating-point AC-3 encoder added
447 - ffmpeg -copytb option added
449 - Wing Commander IV movies decoder added
451 - Bink version 'b' audio and video decoder
452 - Bitmap Brothers JV playback system
453 - Apple HTTP Live Streaming protocol handler
454 - sndio support for playback and record
455 - Linux framebuffer input device added
456 - Chronomaster DFA decoder
457 - Mobotix MxPEG decoder
458 - AAC encoding via libvo-aacenc
459 - AMR-WB encoding via libvo-amrwbenc
461 - fieldorder video filter added
466 - PB-frame decoding for H.263
467 - deprecated vhook subsystem removed
468 - deprecated old scaler removed
470 - Alpha channel scaler
472 - RTP packetization of H.263
473 - RTP packetization of AMR
474 - RTP depacketization of Vorbis
475 - CorePNG decoding support
476 - Cook multichannel decoding support
477 - introduced avlanguage helpers in libavformat
478 - 8088flex TMV demuxer and decoder
479 - per-stream language-tags extraction in asfdec
480 - V210 decoder and encoder
481 - remaining GPL parts in AC-3 decoder converted to LGPL
483 - SoX native format muxer and demuxer
484 - AMR-NB decoding/encoding, AMR-WB decoding via OpenCORE libraries
486 - Electronic Arts Madcow decoder
487 - DivX (XSUB) subtitle encoder
488 - nonfree libamr support for AMR-NB/WB decoding/encoding removed
489 - experimental AAC encoder
490 - RTP depacketization of ASF and RTSP from WMS servers
491 - RTMP support in libavformat
492 - noX handling for OPT_BOOL X options
494 - IEC-61937 compatible Muxer
496 - Bluray (PGS) subtitle decoder
497 - LPCM support in MPEG-TS (HDMV RID as found on Blu-ray disks)
499 - Core Audio Format demuxer
501 - MD STUDIO audio demuxer
502 - RF64 support in WAV demuxer
503 - MPEG-4 Audio Lossless Coding (ALS) decoder
504 - -formats option split into -formats, -codecs, -bsfs, and -protocols
506 - CDG demuxer and decoder
508 - Auravision Aura 1 and 2 decoders
509 - Deluxe Paint Animation playback system
511 - Adobe Filmstrip muxer and demuxer
512 - RTP depacketization of H.263
513 - Bink demuxer and audio/video decoders
514 - enable symbol versioning by default for linkers that support it
515 - IFF PBM/ILBM bitmap decoder
518 - RTP depacketization of AMR
524 - Kega Game Video (KGV1) decoder
525 - VorbisComment writing for FLAC, Ogg FLAC and Ogg Speex files
526 - RTP depacketization of Theora
527 - HTTP Digest authentication
528 - RTMP/RTMPT/RTMPS/RTMPE/RTMPTE protocol support via librtmp
529 - Psygnosis YOP demuxer and video decoder
530 - spectral extension support in the E-AC-3 decoder
531 - unsharp video filter
532 - RTP hinting in the mov/3gp/mp4 muxer
533 - Dirac in Ogg demuxing
534 - seek to keyframes in Ogg
535 - 4:2:2 and 4:4:4 Theora decoding
536 - 35% faster VP3/Theora decoding
537 - faster AAC decoding
538 - faster H.264 decoding
539 - RealAudio 1.0 (14.4K) encoder
544 - DV50 AKA DVCPRO50 encoder, decoder, muxer and demuxer
545 - TechSmith Camtasia (TSCC) video decoder
546 - IBM Ultimotion (ULTI) video decoder
547 - Sierra Online audio file demuxer and decoder
548 - Apple QuickDraw (qdrw) video decoder
549 - Creative ADPCM audio decoder (16 bits as well as 8 bits schemes)
550 - Electronic Arts Multimedia (WVE/UV2/etc.) file demuxer
551 - Miro VideoXL (VIXL) video decoder
552 - H.261 video encoder
554 - Nullsoft Video (NSV) file demuxer
555 - Shorten audio decoder
557 - Apple Lossless Audio Codec (ALAC) decoder
558 - Winnov WNV1 video decoder
559 - Autodesk Animator Studio Codec (AASC) decoder
560 - Indeo 2 video decoder
561 - Fraps FPS1 video decoder
562 - Snow video encoder/decoder
563 - Sonic audio encoder/decoder
564 - Vorbis audio decoder
565 - Macromedia ADPCM decoder
566 - Duck TrueMotion 2 video decoder
567 - support for decoding FLX and DTA extensions in FLIC files
568 - H.264 custom quantization matrices support
569 - ffserver fixed, it should now be usable again
571 - Real Cooker audio decoder
572 - TrueSpeech audio decoder
573 - WMA2 audio decoder fixed, now all files should play correctly
574 - RealAudio 14.4 and 28.8 decoders fixed
576 - build system improvements
577 - tabs and trailing whitespace removed from the codebase
578 - CamStudio video decoder
579 - AIFF/AIFF-C audio format, encoding and decoding
580 - ADTS AAC file reading and writing
581 - Creative VOC file reading and writing
582 - American Laser Games multimedia (*.mm) playback system
583 - Zip Motion Blocks Video decoder
584 - improved Theora/VP3 decoder
585 - True Audio (TTA) decoder
586 - AVS demuxer and video decoder
588 - Smacker demuxer and decoder
589 - NuppelVideo/MythTV demuxer and RTjpeg decoder
591 - MPEG-2 intra VLC support
592 - MPEG-2 4:2:2 encoder
593 - Flash Screen Video decoder
595 - Chinese AVS decoder
598 - VC-1/WMV3/WMV9 video decoder
601 - VMware video decoder
604 - WavPack lossless audio decoder
605 - Targa (.TGA) picture decoder
606 - Vorbis audio encoder
607 - Delphine Software .cin demuxer/audio and video decoder
608 - Tiertex .seq demuxer/video decoder
610 - TIFF picture encoder and decoder
611 - GIF picture decoder
612 - Intel Music Coder decoder
613 - Zip Motion Blocks Video encoder
615 - Flash Screen Video encoder
616 - Theora encoding via libtheora
619 - GSM-MS encoder and decoder
621 - DXA demuxer and decoder
623 - Gamecube movie (.THP) playback system
624 - Blackfin optimizations
625 - Interplay C93 demuxer and video decoder
626 - Bethsoft VID demuxer and video decoder
629 - V.Flash PTX decoder
630 - RoQ muxer, RoQ audio encoder
631 - Renderware TXD demuxer and decoder
632 - extern C declarations for C++ removed from headers
633 - sws_flags command line option
637 - OS/2 support removed and restored again
640 - additional SPARC (VIS) optimizations
642 - slice-based parallel H.264 decoding
643 - Monkey's Audio demuxer and decoder
644 - AMV audio and video decoder
646 - H.264 PAFF decoding
647 - Nellymoser ASAO decoder
648 - Beam Software SIFF demuxer and decoder
649 - libvorbis Vorbis decoding removed in favor of native decoder
650 - IntraX8 (J-Frame) subdecoder for WMV2 and VC-1
651 - Ogg (Theora, Vorbis and FLAC) muxer
652 - The "device" muxers and demuxers are now in a new libavdevice library
653 - PC Paintbrush PCX decoder
654 - Sun Rasterfile decoder
655 - TechnoTrend PVA demuxer
656 - Linux Media Labs MPEG-4 (LMLM4) demuxer
657 - AVM2 (Flash 9) SWF muxer
658 - QT variant of IMA ADPCM encoder
660 - iPod/iPhone compatible mp4 muxer
662 - MSN TCP Webcam stream demuxer
663 - RL2 demuxer / decoder
666 - non-recursive Makefiles
668 - MAXIS EA XA (.xa) demuxer / decoder
672 - Electronic Arts CMV decoder
673 - Motion Pixels Video decoder
674 - Motion Pixels MVI demuxer
675 - removed animated GIF decoder/demuxer
676 - D-Cinema audio muxer
677 - Electronic Arts TGV decoder
678 - Apple Lossless Audio Codec (ALAC) encoder
680 - floating point PCM encoder/decoder
682 - DV100 AKA DVCPRO HD decoder and demuxer
683 - E-AC-3 support added to AC-3 decoder
684 - Nellymoser ASAO encoder
685 - ASS and SSA demuxer and muxer
686 - liba52 wrapper removed
687 - SVQ3 watermark decoding support
688 - Speex decoding via libspeex
689 - Electronic Arts TGQ decoder
691 - QCELP / PureVoice decoder
693 - hybrid WavPack support
694 - R3D REDCODE demuxer
695 - ALSA support for playback and record
696 - Electronic Arts TQI decoder
697 - OpenJPEG based JPEG 2000 decoder
698 - NC (NC4600) camera file demuxer
699 - Gopher client support
701 - generic metadata API
706 - DV encoder, DV muxer
707 - Microsoft RLE video decoder
708 - Microsoft Video-1 decoder
709 - Apple Animation (RLE) decoder
710 - Apple Graphics (SMC) decoder
711 - Apple Video (RPZA) decoder
713 - Sega FILM (CPK) file demuxer
714 - Westwood multimedia support (VQA & AUD files)
715 - Id Quake II CIN playback support
717 - FLIC playback support
718 - RealVideo 2.0 (RV20) decoder
719 - Duck TrueMotion v1 (DUCK) video decoder
720 - Sierra VMD demuxer and video decoder
721 - MSZH and ZLIB decoder support
725 - rate distortion optimal cbp support
726 - rate distorted optimal ac prediction for MPEG-4
727 - rate distorted optimal lambda->qp support
728 - AAC encoding with libfaac
729 - Sunplus JPEG codec (SP5X) support
730 - use Lagrange multipler instead of QP for ratecontrol
731 - Theora/VP3 decoding support
732 - XA and ADX ADPCM codecs
733 - export MPEG-2 active display area / pan scan
734 - Add support for configuring with IBM XLC
735 - floating point AAN DCT
736 - initial support for zygo video (not complete)
738 - new audio/video parser API
740 - av_read_frame() and av_seek_frame() support
741 - missing last frame fixes
742 - seek by mouse in ffplay
743 - noise reduction of DCT coefficients
744 - H.263 OBMC & 4MV support
745 - H.263 alternative inter vlc support
747 - H.263 slice structured mode
748 - interlaced DCT support for MPEG-2 encoding
749 - stuffing to stay above min_bitrate
750 - MB type & QP visualization
751 - frame stepping for ffplay
752 - interlaced motion estimation
753 - alternate scantable support
754 - SVCD scan offset support
757 - quantizer noise shaping
758 - G.726 ADPCM audio codec
760 - multithreaded/SMP motion estimation
761 - multithreaded/SMP encoding for MPEG-1/MPEG-2/MPEG-4/H.263
762 - multithreaded/SMP decoding for MPEG-2
764 - Metrowerks CodeWarrior suppport
765 - H.263+ custom pcf support
766 - nicer output for 'ffmpeg -formats'
768 - SGI image format, encoding and decoding
769 - H.264 loop filter support
770 - H.264 CABAC support
771 - nicer looking arrows for the motion vector visualization
772 - improved VCD support
773 - audio timestamp drift compensation
774 - MPEG-2 YUV 422/444 support
775 - polyphase kaiser windowed sinc and blackman nuttall windowed sinc audio resample
776 - better image scaling
778 - correctly interleave packets during encoding
779 - VIS optimized motion compensation
780 - intra_dc_precision>0 encoding support
781 - support reuse of motion vectors/MB types/field select values of the source video
782 - more accurate deblock filter
784 - many optimizations and bugfixes
785 - FunCom ISS audio file demuxer and according ADPCM decoding
790 - MPEG-2 video encoding (Michael)
791 - Id RoQ playback subsystem (Mike Melanson and Tim Ferguson)
792 - Wing Commander III Movie (.mve) file playback subsystem (Mike Melanson
794 - Xan DPCM audio decoder (Mario Brito)
795 - Interplay MVE playback subsystem (Mike Melanson)
796 - Duck DK3 and DK4 ADPCM audio decoders (Mike Melanson)
801 - RealAudio 1.0 (14_4) and 2.0 (28_8) native decoders. Author unknown, code from mplayerhq
802 (originally from public domain player for Amiga at http://www.honeypot.net/audio)
803 - current version now also compiles with older GCC (Fabrice)
804 - 4X multimedia playback system including 4xm file demuxer (Mike
805 Melanson), and 4X video and audio codecs (Michael)
806 - Creative YUV (CYUV) decoder (Mike Melanson)
807 - FFV1 codec (our very simple lossless intra only codec, compresses much better
808 than HuffYUV) (Michael)
809 - ASV1 (Asus), H.264, Intel indeo3 codecs have been added (various)
810 - tiny PNG encoder and decoder, tiny GIF decoder, PAM decoder (PPM with
811 alpha support), JPEG YUV colorspace support. (Fabrice Bellard)
812 - ffplay has been replaced with a newer version which uses SDL (optionally)
813 for multiplatform support (Fabrice)
814 - Sorenson Version 3 codec (SVQ3) support has been added (decoding only) - donated
816 - AMR format has been added (Johannes Carlsson)
817 - 3GP support has been added (Johannes Carlsson)
818 - VP3 codec has been added (Mike Melanson)
819 - more MPEG-1/2 fixes
820 - better multiplatform support, MS Visual Studio fixes (various)
821 - AltiVec optimizations (Magnus Damn and others)
822 - SH4 processor support has been added (BERO)
823 - new public interfaces (avcodec_get_pix_fmt) (Roman Shaposhnick)
824 - VOB streaming support (Brian Foley)
825 - better MP3 autodetection (Andriy Rysin)
826 - qpel encoding (Michael)
827 - 4mv+b frames encoding finally fixed (Michael)
828 - chroma ME (Michael)
829 - 5 comparison functions for ME (Michael)
830 - B-frame encoding speedup (Michael)
831 - WMV2 codec (unfinished - Michael)
832 - user specified diamond size for EPZS (Michael)
833 - Playstation STR playback subsystem, still experimental (Mike and Michael)
834 - ASV2 codec (Michael)
835 - CLJR decoder (Alex)
837 .. And lots more new enhancements and fixes.
842 - completely new integer only MPEG audio layer 1/2/3 decoder rewritten
844 - Recoded DCT and motion vector search with gcc (no longer depends on nasm)
845 - fix quantization bug in AC3 encoder
846 - added PCM codecs and format. Corrected WAV/AVI/ASF PCM issues
847 - added prototype ffplay program
848 - added GOB header parsing on H.263/H.263+ decoder (Juanjo)
849 - bug fix on MCBPC tables of H.263 (Juanjo)
850 - bug fix on DC coefficients of H.263 (Juanjo)
851 - added Advanced Prediction Mode on H.263/H.263+ decoder (Juanjo)
852 - now we can decode H.263 streams found in QuickTime files (Juanjo)
853 - now we can decode H.263 streams found in VIVO v1 files(Juanjo)
854 - preliminary RTP "friendly" mode for H.263/H.263+ coding. (Juanjo)
855 - added GOB header for H.263/H.263+ coding on RTP mode (Juanjo)
856 - now H.263 picture size is returned on the first decoded frame (Juanjo)
857 - added first regression tests
858 - added MPEG-2 TS demuxer
859 - new demux API for libav
860 - more accurate and faster IDCT (Michael)
861 - faster and entropy-controlled motion search (Michael)
862 - two pass video encoding (Michael)
863 - new video rate control (Michael)
864 - added MSMPEG4V1, MSMPEGV2 and WMV1 support (Michael)
865 - great performance improvement of video encoders and decoders (Michael)
866 - new and faster bit readers and vlc parsers (Michael)
867 - high quality encoding mode: tries all macroblock/VLC types (Michael)
868 - added DV video decoder
869 - preliminary RTP/RTSP support in ffserver and libavformat
870 - H.263+ AIC decoding/encoding support (Juanjo)
871 - VCD MPEG-PS mode (Juanjo)
872 - PSNR stuff (Juanjo)
873 - simple stats output (Juanjo)
874 - 16-bit and 15-bit RGB/BGR/GBR support (Bisqwit)
879 - some header fixes (Zdenek Kabelac <kabi at informatics.muni.cz>)
880 - many MMX optimizations (Nick Kurshev <nickols_k at mail.ru>)
881 - added configure system (actually a small shell script)
882 - added MPEG audio layer 1/2/3 decoding using LGPL'ed mpglib by
883 Michael Hipp (temporary solution - waiting for integer only
885 - fixed VIDIOCSYNC interrupt
886 - added Intel H.263 decoding support ('I263' AVI fourCC)
887 - added Real Video 1.0 decoding (needs further testing)
888 - simplified image formats again. Added PGM format (=grey
889 pgm). Renamed old PGM to PGMYUV.
890 - fixed msmpeg4 slice issues (tell me if you still find problems)
891 - fixed OpenDivX bugs with newer versions (added VOL header decoding)
892 - added support for MPlayer interface
893 - added macroblock skip optimization
894 - added MJPEG decoder
895 - added mmx/mmxext IDCT from libmpeg2
896 - added pgmyuvpipe, ppm, and ppm_pipe formats (original patch by Celer
897 <celer at shell.scrypt.net>)
898 - added pixel format conversion layer (e.g. for MJPEG or PPM)
899 - added deinterlacing option
901 - MPEG-4 vol header fixes (Jonathan Marsden <snmjbm at pacbell.net>)
902 - ARM optimizations (Lionel Ulmer <lionel.ulmer at free.fr>).
903 - Windows porting of file converter
904 - added MJPEG raw format (input/ouput)
905 - added JPEG image format support (input/output)
910 - fixed some std header definitions (Bjorn Lindgren
911 <bjorn.e.lindgren at telia.com>).
912 - added MPEG demuxer (MPEG-1 and 2 compatible).
914 - added prototype RM demuxer
915 - added AC3 decoding (done with libac3 by Aaron Holtzman)
916 - added decoding codec parameter guessing (.e.g. for MPEG, because the
917 header does not include them)
918 - fixed header generation in MPEG-1, AVI and ASF muxer: wmplayer can now
919 play them (only tested video)
920 - fixed H.263 white bug
921 - fixed phase rounding in img resample filter
922 - add MMX code for polyphase img resample filter
923 - added CPU autodetection
924 - added generic title/author/copyright/comment string handling (ASF and RM
926 - added SWF demux to extract MP3 track (not usable yet because no MP3
928 - added fractional frame rate support
929 - codecs are no longer searched by read_header() (should fix ffserver
935 - BGR24 patch (initial patch by Jeroen Vreeken <pe1rxq at amsat.org>)
936 - fixed raw yuv output
937 - added motion rounding support in MPEG-4
938 - fixed motion bug rounding in MSMPEG4
939 - added B-frame handling in video core
940 - added full MPEG-1 decoding support
941 - added partial (frame only) MPEG-2 support
942 - changed the FOURCC code for H.263 to "U263" to be able to see the
943 +AVI/H.263 file with the UB Video H.263+ decoder. MPlayer works with
944 this +codec ;) (JuanJo).
945 - Halfpel motion estimation after MB type selection (JuanJo)
946 - added pgm and .Y.U.V output format
947 - suppressed 'img:' protocol. Simply use: /tmp/test%d.[pgm|Y] as input or
949 - added pgmpipe I/O format (original patch from Martin Aumueller
950 <lists at reserv.at>, but changed completely since we use a format
951 instead of a protocol)
956 - added H.263/MPEG-4/MSMPEG4 decoding support. MPEG-4 decoding support
957 (for OpenDivX) is almost complete: 8x8 MVs and rounding are
958 missing. MSMPEG4 support is complete.
959 - added prototype MPEG-1 decoder. Only I- and P-frames handled yet (it
960 can decode ffmpeg MPEGs :-)).
961 - added libavcodec API documentation (see apiexample.c).
962 - fixed image polyphase bug (the bottom of some images could be
964 - added support for non clipped motion vectors (decoding only)
965 and image sizes non-multiple of 16
966 - added support for AC prediction (decoding only)
967 - added file overwrite confirmation (can be disabled with -y)
968 - added custom size picture to H.263 using H.263+ (Juanjo)
973 - added MSMPEG4 (aka DivX) compatible encoder. Changed default codec
974 of AVI and ASF to DIV3.
975 - added -me option to set motion estimation method
976 (default=log). suppressed redundant -hq option.
977 - added options -acodec and -vcodec to force a given codec (useful for
980 - improved dct_quantize speed
981 - factorized some motion estimation code
986 - removing grab code from ffserver and moved it to ffmpeg. Added
987 multistream support to ffmpeg.
988 - added timeshifting support for live feeds (option ?date=xxx in the
990 - added high quality image resize code with polyphase filter (need
991 mmx/see optimization). Enable multiple image size support in ffserver.
992 - added multi live feed support in ffserver
993 - suppressed master feature from ffserver (it should be done with an
994 external program which opens the .ffm url and writes it to another
996 - added preliminary support for video stream parsing (WAV and AVI half
997 done). Added proper support for audio/video file conversion in
999 - added preliminary support for video file sending from ffserver
1000 - redesigning I/O subsystem: now using URL based input and output
1002 - added WAV format support
1003 - added "tty user interface" to ffmpeg to stop grabbing gracefully
1004 - added MMX/SSE optimizations to SAD (Sums of Absolutes Differences)
1005 (Juan J. Sierralta P. a.k.a. "Juanjo" <juanjo at atmlab.utfsm.cl>)
1006 - added MMX DCT from mpeg2_movie 1.5 (Juanjo)
1007 - added new motion estimation algorithms, log and phods (Juanjo)
1008 - changed directories: libav for format handling, libavcodec for
1014 - added stereo in MPEG audio encoder
1019 - added 'high quality' mode which use motion vectors. It can be used in
1020 real time at low resolution.
1021 - fixed rounding problems which caused quality problems at high
1022 bitrates and large GOP size
1025 version 0.3.2: small fixes
1031 version 0.3.1: added avi/divx support
1034 - added MPEG-4 codec compatible with OpenDivX. It is based on the H.263 codec
1035 - added sound for flash format (not tested)
1038 version 0.3: initial public release