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)
28 - shuffleplanes filter
29 - replaygain data export
30 - Alias PIX image encoder and decoder
31 - BRender PIX image decoder
32 - Amazing Studio PAF playback support
34 - BMP standalone parser
35 - OpenEXR image decoder
36 - support encoding and decoding 4-channel SGI images
37 - support decoding 16-bit RLE SGI images
39 - LucasArts SMUSH SANM video decoder
40 - LucasArts SMUSH VIMA audio decoder (ADPCM)
41 - LucasArts SMUSH demuxer
42 - MP2 encoding via TwoLAME
44 - Silicon Graphics RLE 8-bit video decoder
45 - Silicon Graphics Motion Video Compressor 1 & 2 decoder
46 - Silicon Graphics Movie demuxer
47 - On2 AVC (Audio for Video) decoder
48 - support for decoding through DXVA2 in avconv
49 - libbs2b-based stereo-to-binaural audio filter
51 - display matrix export and rotation API
52 - drop avserver, it was unmaintained for years and largely broken
54 - request Icecast metadata by default
55 - support for using metadata in stream specifiers in avtools
61 - support ID3v2 tags in ASF files
62 - reference-counting for AVFrame and AVPacket data
63 - avconv now fails when input options are used for output file
65 - avconv options -filter_script and -filter_complex_script, which allow a
66 filtergraph description to be read from a file
67 - uniform options syntax across all filters
70 - asetpts filter (same as setpts, but for audio)
71 - trim and atrim filters
72 - avconv -t and -ss (output-only) options are now sample-accurate when
74 - Matroska muxer can now put the index at the beginning of the file.
75 - avconv -deinterlace option removed, the yadif filter should be used instead
76 - Apple Intermediate Codec decoder
77 - Escape 130 video decoder
78 - support for slice multithreading in libavfilter
79 - VC-1 interlaced B-frame support
80 - support for WavPack muxing (raw and in Matroska)
82 - WavPack encoding through libwavpack
83 - Added the -n parameter to avconv
85 - when transcoding with avconv (i.e. not streamcopying), -ss is now accurate
86 even when used as an input option. Previous behavior can be restored with
87 the -noaccurate_seek option.
88 - avconv -t option can now be used for inputs, to limit the duration of
89 data read from an input file
90 - Voxware MetaSound decoder
92 - Error Resilient AAC syntax (ER AAC LC) decoding
93 - Low Delay AAC (ER AAC LD) decoding
94 - mux chapters in ASF files
95 - Opus in Ogg demuxing
96 - Enhanced Low Delay AAC (ER AAC ELD) decoding (no LD SBR support)
98 - HNM version 4 demuxer and video decoder
100 - raw HEVC, HEVC in MOV/MP4, HEVC in Matroska, HEVC in MPEG-TS demuxing
101 - remove avplay -vismv option, which has not worked for a long time
103 - setsar/setdar filters now support variables in ratio expressions
104 - dar variable in the scale filter now returns the actual DAR (i.e. a * sar)
106 - support for decoding through VDPAU in avconv (the -hwaccel option)
107 - remove mp3_header_(de)compress bitstream filters
108 - stereoscopic 3d metadata handling
109 - png standalone parser
110 - WebP encoding via libwebp
113 - Mirillis FIC video decoder
115 - compand audio filter
119 - av_basename and av_dirname
120 - adobe and limelight publisher authentication in RTMP
121 - VDPAU hardware acceleration through normal hwaccel
126 - ashowinfo audio filter
127 - 24-bit FLAC encoding
128 - audio volume filter
129 - deprecated the avconv -vol option. the volume filter is to be used instead.
130 - multi-channel ALAC encoding up to 7.1
131 - TAK demuxer, parser, and decoder
132 - adaptive frame-level multithreading for H.264
136 - metadata (INFO tag) support in WAV muxer
137 - support for building DLLs using MSVC
138 - remove avserver daemon mode
139 - support building on the Plan 9 operating system
140 - ffv1: support version 1.3
145 - XWD encoder and decoder
146 - Support for fragmentation in the mov/mp4 muxer
147 - ISMV (Smooth Streaming) muxer
148 - CDXL demuxer and decoder
149 - Apple ProRes encoder
150 - Sun Rasterfile Encoder
152 - ID3v2 attached pictures reading and writing
153 - WMA Lossless decoder
155 - RealAudio Lossless decoder
157 - drop support for avconv without libavfilter
158 - add libavresample audio conversion library
159 - audio filters support in libavfilter and avconv
163 - avprobe output is now standard INI or JSON. The old format can still
164 be used with -of old.
165 - Indeo Audio decoder
166 - channelsplit audio filter
167 - RTMPT protocol support
168 - iLBC encoding/decoding via libilbc
169 - Microsoft Screen 1 decoder
171 - audio channel mapping filter
172 - Microsoft ATC Screen decoder
174 - TechSmith Screen Codec 2 decoder
175 - AAC encoding via libfdk-aac
176 - Microsoft Expression Encoder Screen decoder
177 - RTMPS protocol support
178 - RTMPTS protocol support
179 - JPEG 2000 encoding support through OpenJPEG
180 - G.723.1 demuxer and decoder
181 - RTMPE protocol support
182 - RTMPTE protocol support
183 - Canopus Lossless Codec decoder
184 - avconv -shortest option is now per-output file,
185 -pass and -passlogfile are now per-output stream
187 - Microsoft Screen 2 decoder
188 - RTP depacketization of JPEG
189 - Smooth Streaming live segmenter muxer
190 - RTP packetization of JPEG
191 - Opus decoder and encoder using libopus
192 - remove -same_quant, it hasn't worked for years
193 - support for building with MSVC
204 - Automatic thread count based on detection number of (available) CPU cores
205 - Deprecate libpostproc. If desired, the switch --enable-postproc will
206 enable it but it may be removed in a later Libav release.
207 - rv34: frame-level multi-threading
208 - optimized iMDCT transform on x86 using SSE for for mpegaudiodec
214 - Flash Screen Video 2 decoder
215 - ffplay/ffprobe/ffserver renamed to avplay/avprobe/avserver
216 - ffmpeg deprecated, added avconv, which is almost the same for now, except
217 for a few incompatible changes in the options, which will hopefully make them
218 easier to use. The changes are:
219 * The options placement is now strictly enforced! While in theory the
220 options for ffmpeg should be given in [input options] -i INPUT [output
221 options] OUTPUT order, in practice it was possible to give output options
222 before the -i and it mostly worked. Except when it didn't - the behavior was
223 a bit inconsistent. In avconv, it is not possible to mix input and output
224 options. All non-global options are reset after an input or output filename.
225 * All per-file options are now truly per-file - they apply only to the next
226 input or output file and specifying different values for different files
227 will now work properly (notably -ss and -t options).
228 * All per-stream options are now truly per-stream - it is possible to
229 specify which stream(s) should a given option apply to. See the Stream
230 specifiers section in the avconv manual for details.
231 * In ffmpeg some options (like -newvideo/-newaudio/...) are irregular in the
232 sense that they're specified after the output filename instead of before,
233 like all other options. In avconv this irregularity is removed, all options
234 apply to the next input or output file.
235 * -newvideo/-newaudio/-newsubtitle options were removed. Not only were they
236 irregular and highly confusing, they were also redundant. In avconv the -map
237 option will create new streams in the output file and map input streams to
238 them. E.g. avconv -i INPUT -map 0 OUTPUT will create an output stream for
239 each stream in the first input file.
240 * The -map option now has slightly different and more powerful syntax:
241 + Colons (':') are used to separate file index/stream type/stream index
242 instead of dots. Comma (',') is used to separate the sync stream instead
243 of colon.. This is done for consistency with other options.
244 + It's possible to specify stream type. E.g. -map 0:a:2 creates an
245 output stream from the third input audio stream.
246 + Omitting the stream index now maps all the streams of the given type,
247 not just the first. E.g. -map 0:s creates output streams for all the
248 subtitle streams in the first input file.
249 + Since -map can now match multiple streams, negative mappings were
250 introduced. Negative mappings disable some streams from an already
251 defined map. E.g. '-map 0 -map -0:a:1' means 'create output streams for
252 all the stream in the first input file, except for the second audio
254 * There is a new option -c (or -codec) for choosing the decoder/encoder to
255 use, which allows to precisely specify target stream(s) consistently with
256 other options. E.g. -c:v lib264 sets the codec for all video streams, -c:a:0
257 libvorbis sets the codec for the first audio stream and -c copy copies all
258 the streams without reencoding. Old -vcodec/-acodec/-scodec options are now
260 * It is now possible to precisely specify which stream should an AVOption
261 apply to. E.g. -b:v:0 2M sets the bitrate for the first video stream, while
262 -b:a 128k sets the bitrate for all audio streams. Note that the old -ab 128k
263 syntax is deprecated and will stop working soon.
264 * -map_chapters now takes only an input file index and applies to the next
265 output file. This is consistent with how all the other options work.
266 * -map_metadata now takes only an input metadata specifier and applies to
267 the next output file. Output metadata specifier is now part of the option
268 name, similarly to the AVOptions/map/codec feature above.
269 * -metadata can now be used to set metadata on streams and chapters, e.g.
270 -metadata:s:1 language=eng sets the language of the first stream to 'eng'.
271 This made -vlang/-alang/-slang options redundant, so they were removed.
272 * -qscale option now uses stream specifiers and applies to all streams, not
273 just video. I.e. plain -qscale number would now apply to all streams. To get
274 the old behavior, use -qscale:v. Also there is now a shortcut -q for -qscale
275 and -aq is now an alias for -q:a.
276 * -vbsf/-absf/-sbsf options were removed and replaced by a -bsf option which
277 uses stream specifiers. Use -bsf:v/a/s instead of the old options.
278 * -itsscale option now uses stream specifiers, so its argument is only the
280 * -intra option was removed, use -g 0 for the same effect.
281 * -psnr option was removed, use -flags +psnr for the same effect.
282 * -vf option is now an alias to the new -filter option, which uses stream specifiers.
283 * -vframes/-aframes/-dframes options are now aliases to the new -frames option.
284 * -vtag/-atag/-stag options are now aliases to the new -tag option.
286 - Windows Media Image decoder
290 - libcdio-paranoia input device for audio CD grabbing
292 - Apple ProRes decoder
293 - CELT in Ogg demuxing
294 - VC-1 interlaced decoding
295 - lut, lutrgb, and lutyuv filters
298 - Speex encoding via libspeex
299 - 4:2:2 H.264 decoding support
300 - 4:2:2 and 4:4:4 H.264 encoding with libx264
301 - Pulseaudio input device
302 - replacement Indeo 3 decoder
303 - TLS/SSL and HTTPS protocol support
304 - AVOptions API rewritten and documented
305 - most of CODEC_FLAG2_*, some CODEC_FLAG_* and many codec-specific fields in
306 AVCodecContext deprecated. Codec private options should be used instead.
307 - Properly working defaults in libx264 wrapper, support for native presets.
308 - Encrypted OMA files support
309 - Discworld II BMV decoding support
311 - OS X Video Decoder Acceleration (VDA) support
312 - CRI ADX audio format muxer and demuxer
313 - Playstation Portable PMP format demuxer
314 - PCM format support in OMA demuxer
316 - Dxtory capture format decoder
317 - v410 QuickTime uncompressed 4:4:4 10-bit encoder and decoder
319 - Simple segmenting muxer
326 - E-AC-3 audio encoder
327 - ac3enc: add channel coupling support
328 - floating-point sample format support for (E-)AC-3, DCA, AAC, Vorbis decoders
329 - H.264/MPEG frame-level multithreading
330 - av_metadata_* functions renamed to av_dict_* and moved to libavutil
331 - 4:4:4 H.264 decoding support
332 - 10-bit H.264 optimizations for x86
333 - bump libswscale for recently reported ABI break
338 - VP8 frame-level multithreading
339 - NEON optimizations for VP8
340 - removed a lot of deprecated API cruft
341 - FFT and IMDCT optimizations for AVX (Sandy Bridge) processors
343 - SMPTE 302M AES3 audio decoder
344 - ffmpeg no longer quits after the 'q' key is pressed; use 'ctrl+c' instead
345 - 9bit and 10bit per sample support in the H.264 decoder
350 - WebM support in Matroska de/muxer
351 - low overhead Ogg muxing
353 - VP8 de/encoding via libvpx
354 - Demuxer for On2's IVF format
355 - Pictor/PC Paint decoder
357 - libfaad2 wrapper removed
358 - DTS-ES extension (XCh) decoding support
360 - RTSP tunneling over HTTP
361 - RTP depacketization of SVQ3
362 - -strict inofficial replaced by -strict unofficial
363 - ffplay -exitonkeydown and -exitonmousedown options added
364 - native GSM / GSM MS decoder
365 - RTP depacketization of QDM2
366 - ANSI/ASCII art playback system
367 - Lego Mindstorms RSO de/muxer
368 - SubRip subtitle file muxer and demuxer
369 - Chinese AVS encoding via libxavs
370 - ffprobe -show_packets option added
371 - RTP packetization of Theora and Vorbis
372 - RTP depacketization of MP4A-LATM
373 - RTP packetization and depacketization of VP8
375 - Apple HTTP Live Streaming demuxer
378 - G.722 ADPCM audio encoder/decoder
381 - frei0r wrapper filter
382 - change crop filter syntax to width:height:x:y
383 - make the crop filter accept parametric expressions
384 - make ffprobe accept AVFormatContext options
387 - Demuxer for Leitch/Harris' VR native stream format (LXF)
388 - RTP depacketization of the X-QT QuickTime format
389 - SAP (Session Announcement Protocol, RFC 2974) muxer and demuxer
391 - ffmpeg -crop* options removed
392 - transpose filter added
393 - ffmpeg -force_key_frames option added
394 - demuxer for receiving raw rtp:// URLs without an SDP description
395 - single stream LATM/LOAS decoder
396 - setpts filter added
397 - Win64 support for optimized x86 assembly functions
398 - MJPEG/AVI1 to JPEG/JFIF bitstream filter
399 - ASS subtitle encoder and decoder
400 - IEC 61937 encapsulation for E-AC-3, TrueHD, DTS-HD (for HDMI passthrough)
401 - overlay filter added
402 - rename aspect filter to setdar, and pixelaspect to setsar
404 - Mobotix .mxg demuxer
405 - frei0r source added
406 - hqdn3d filter added
407 - RTP depacketization of QCELP
409 - gradfun filter added
411 - replace the ocv_smooth filter with a more generic ocv filter
412 - Windows Televison (WTV) demuxer
413 - FFmpeg metadata format muxer and demuxer
414 - SubRip (srt) subtitle decoder
415 - floating-point AC-3 encoder added
417 - ffmpeg -copytb option added
419 - Wing Commander IV movies decoder added
421 - Bink version 'b' audio and video decoder
422 - Bitmap Brothers JV playback system
423 - Apple HTTP Live Streaming protocol handler
424 - sndio support for playback and record
425 - Linux framebuffer input device added
426 - Chronomaster DFA decoder
427 - Mobotix MxPEG decoder
428 - AAC encoding via libvo-aacenc
429 - AMR-WB encoding via libvo-amrwbenc
431 - fieldorder video filter added
436 - PB-frame decoding for H.263
437 - deprecated vhook subsystem removed
438 - deprecated old scaler removed
440 - Alpha channel scaler
442 - RTP packetization of H.263
443 - RTP packetization of AMR
444 - RTP depacketization of Vorbis
445 - CorePNG decoding support
446 - Cook multichannel decoding support
447 - introduced avlanguage helpers in libavformat
448 - 8088flex TMV demuxer and decoder
449 - per-stream language-tags extraction in asfdec
450 - V210 decoder and encoder
451 - remaining GPL parts in AC-3 decoder converted to LGPL
453 - SoX native format muxer and demuxer
454 - AMR-NB decoding/encoding, AMR-WB decoding via OpenCORE libraries
456 - Electronic Arts Madcow decoder
457 - DivX (XSUB) subtitle encoder
458 - nonfree libamr support for AMR-NB/WB decoding/encoding removed
459 - experimental AAC encoder
460 - RTP depacketization of ASF and RTSP from WMS servers
461 - RTMP support in libavformat
462 - noX handling for OPT_BOOL X options
464 - IEC-61937 compatible Muxer
466 - Bluray (PGS) subtitle decoder
467 - LPCM support in MPEG-TS (HDMV RID as found on Blu-ray disks)
469 - Core Audio Format demuxer
471 - MD STUDIO audio demuxer
472 - RF64 support in WAV demuxer
473 - MPEG-4 Audio Lossless Coding (ALS) decoder
474 - -formats option split into -formats, -codecs, -bsfs, and -protocols
476 - CDG demuxer and decoder
478 - Auravision Aura 1 and 2 decoders
479 - Deluxe Paint Animation playback system
481 - Adobe Filmstrip muxer and demuxer
482 - RTP depacketization of H.263
483 - Bink demuxer and audio/video decoders
484 - enable symbol versioning by default for linkers that support it
485 - IFF PBM/ILBM bitmap decoder
488 - RTP depacketization of AMR
494 - Kega Game Video (KGV1) decoder
495 - VorbisComment writing for FLAC, Ogg FLAC and Ogg Speex files
496 - RTP depacketization of Theora
497 - HTTP Digest authentication
498 - RTMP/RTMPT/RTMPS/RTMPE/RTMPTE protocol support via librtmp
499 - Psygnosis YOP demuxer and video decoder
500 - spectral extension support in the E-AC-3 decoder
501 - unsharp video filter
502 - RTP hinting in the mov/3gp/mp4 muxer
503 - Dirac in Ogg demuxing
504 - seek to keyframes in Ogg
505 - 4:2:2 and 4:4:4 Theora decoding
506 - 35% faster VP3/Theora decoding
507 - faster AAC decoding
508 - faster H.264 decoding
509 - RealAudio 1.0 (14.4K) encoder
514 - DV50 AKA DVCPRO50 encoder, decoder, muxer and demuxer
515 - TechSmith Camtasia (TSCC) video decoder
516 - IBM Ultimotion (ULTI) video decoder
517 - Sierra Online audio file demuxer and decoder
518 - Apple QuickDraw (qdrw) video decoder
519 - Creative ADPCM audio decoder (16 bits as well as 8 bits schemes)
520 - Electronic Arts Multimedia (WVE/UV2/etc.) file demuxer
521 - Miro VideoXL (VIXL) video decoder
522 - H.261 video encoder
524 - Nullsoft Video (NSV) file demuxer
525 - Shorten audio decoder
527 - Apple Lossless Audio Codec (ALAC) decoder
528 - Winnov WNV1 video decoder
529 - Autodesk Animator Studio Codec (AASC) decoder
530 - Indeo 2 video decoder
531 - Fraps FPS1 video decoder
532 - Snow video encoder/decoder
533 - Sonic audio encoder/decoder
534 - Vorbis audio decoder
535 - Macromedia ADPCM decoder
536 - Duck TrueMotion 2 video decoder
537 - support for decoding FLX and DTA extensions in FLIC files
538 - H.264 custom quantization matrices support
539 - ffserver fixed, it should now be usable again
541 - Real Cooker audio decoder
542 - TrueSpeech audio decoder
543 - WMA2 audio decoder fixed, now all files should play correctly
544 - RealAudio 14.4 and 28.8 decoders fixed
546 - build system improvements
547 - tabs and trailing whitespace removed from the codebase
548 - CamStudio video decoder
549 - AIFF/AIFF-C audio format, encoding and decoding
550 - ADTS AAC file reading and writing
551 - Creative VOC file reading and writing
552 - American Laser Games multimedia (*.mm) playback system
553 - Zip Motion Blocks Video decoder
554 - improved Theora/VP3 decoder
555 - True Audio (TTA) decoder
556 - AVS demuxer and video decoder
558 - Smacker demuxer and decoder
559 - NuppelVideo/MythTV demuxer and RTjpeg decoder
561 - MPEG-2 intra VLC support
562 - MPEG-2 4:2:2 encoder
563 - Flash Screen Video decoder
565 - Chinese AVS decoder
568 - VC-1/WMV3/WMV9 video decoder
571 - VMware video decoder
574 - WavPack lossless audio decoder
575 - Targa (.TGA) picture decoder
576 - Vorbis audio encoder
577 - Delphine Software .cin demuxer/audio and video decoder
578 - Tiertex .seq demuxer/video decoder
580 - TIFF picture encoder and decoder
581 - GIF picture decoder
582 - Intel Music Coder decoder
583 - Zip Motion Blocks Video encoder
585 - Flash Screen Video encoder
586 - Theora encoding via libtheora
589 - GSM-MS encoder and decoder
591 - DXA demuxer and decoder
593 - Gamecube movie (.THP) playback system
594 - Blackfin optimizations
595 - Interplay C93 demuxer and video decoder
596 - Bethsoft VID demuxer and video decoder
599 - V.Flash PTX decoder
600 - RoQ muxer, RoQ audio encoder
601 - Renderware TXD demuxer and decoder
602 - extern C declarations for C++ removed from headers
603 - sws_flags command line option
607 - OS/2 support removed and restored again
610 - additional SPARC (VIS) optimizations
612 - slice-based parallel H.264 decoding
613 - Monkey's Audio demuxer and decoder
614 - AMV audio and video decoder
616 - H.264 PAFF decoding
617 - Nellymoser ASAO decoder
618 - Beam Software SIFF demuxer and decoder
619 - libvorbis Vorbis decoding removed in favor of native decoder
620 - IntraX8 (J-Frame) subdecoder for WMV2 and VC-1
621 - Ogg (Theora, Vorbis and FLAC) muxer
622 - The "device" muxers and demuxers are now in a new libavdevice library
623 - PC Paintbrush PCX decoder
624 - Sun Rasterfile decoder
625 - TechnoTrend PVA demuxer
626 - Linux Media Labs MPEG-4 (LMLM4) demuxer
627 - AVM2 (Flash 9) SWF muxer
628 - QT variant of IMA ADPCM encoder
630 - iPod/iPhone compatible mp4 muxer
632 - MSN TCP Webcam stream demuxer
633 - RL2 demuxer / decoder
636 - non-recursive Makefiles
638 - MAXIS EA XA (.xa) demuxer / decoder
642 - Electronic Arts CMV decoder
643 - Motion Pixels Video decoder
644 - Motion Pixels MVI demuxer
645 - removed animated GIF decoder/demuxer
646 - D-Cinema audio muxer
647 - Electronic Arts TGV decoder
648 - Apple Lossless Audio Codec (ALAC) encoder
650 - floating point PCM encoder/decoder
652 - DV100 AKA DVCPRO HD decoder and demuxer
653 - E-AC-3 support added to AC-3 decoder
654 - Nellymoser ASAO encoder
655 - ASS and SSA demuxer and muxer
656 - liba52 wrapper removed
657 - SVQ3 watermark decoding support
658 - Speex decoding via libspeex
659 - Electronic Arts TGQ decoder
661 - QCELP / PureVoice decoder
663 - hybrid WavPack support
664 - R3D REDCODE demuxer
665 - ALSA support for playback and record
666 - Electronic Arts TQI decoder
667 - OpenJPEG based JPEG 2000 decoder
668 - NC (NC4600) camera file demuxer
669 - Gopher client support
671 - generic metadata API
676 - DV encoder, DV muxer
677 - Microsoft RLE video decoder
678 - Microsoft Video-1 decoder
679 - Apple Animation (RLE) decoder
680 - Apple Graphics (SMC) decoder
681 - Apple Video (RPZA) decoder
683 - Sega FILM (CPK) file demuxer
684 - Westwood multimedia support (VQA & AUD files)
685 - Id Quake II CIN playback support
687 - FLIC playback support
688 - RealVideo 2.0 (RV20) decoder
689 - Duck TrueMotion v1 (DUCK) video decoder
690 - Sierra VMD demuxer and video decoder
691 - MSZH and ZLIB decoder support
695 - rate distortion optimal cbp support
696 - rate distorted optimal ac prediction for MPEG-4
697 - rate distorted optimal lambda->qp support
698 - AAC encoding with libfaac
699 - Sunplus JPEG codec (SP5X) support
700 - use Lagrange multipler instead of QP for ratecontrol
701 - Theora/VP3 decoding support
702 - XA and ADX ADPCM codecs
703 - export MPEG-2 active display area / pan scan
704 - Add support for configuring with IBM XLC
705 - floating point AAN DCT
706 - initial support for zygo video (not complete)
708 - new audio/video parser API
710 - av_read_frame() and av_seek_frame() support
711 - missing last frame fixes
712 - seek by mouse in ffplay
713 - noise reduction of DCT coefficients
714 - H.263 OBMC & 4MV support
715 - H.263 alternative inter vlc support
717 - H.263 slice structured mode
718 - interlaced DCT support for MPEG-2 encoding
719 - stuffing to stay above min_bitrate
720 - MB type & QP visualization
721 - frame stepping for ffplay
722 - interlaced motion estimation
723 - alternate scantable support
724 - SVCD scan offset support
727 - quantizer noise shaping
728 - G.726 ADPCM audio codec
730 - multithreaded/SMP motion estimation
731 - multithreaded/SMP encoding for MPEG-1/MPEG-2/MPEG-4/H.263
732 - multithreaded/SMP decoding for MPEG-2
734 - Metrowerks CodeWarrior suppport
735 - H.263+ custom pcf support
736 - nicer output for 'ffmpeg -formats'
738 - SGI image format, encoding and decoding
739 - H.264 loop filter support
740 - H.264 CABAC support
741 - nicer looking arrows for the motion vector visualization
742 - improved VCD support
743 - audio timestamp drift compensation
744 - MPEG-2 YUV 422/444 support
745 - polyphase kaiser windowed sinc and blackman nuttall windowed sinc audio resample
746 - better image scaling
748 - correctly interleave packets during encoding
749 - VIS optimized motion compensation
750 - intra_dc_precision>0 encoding support
751 - support reuse of motion vectors/MB types/field select values of the source video
752 - more accurate deblock filter
754 - many optimizations and bugfixes
755 - FunCom ISS audio file demuxer and according ADPCM decoding
760 - MPEG-2 video encoding (Michael)
761 - Id RoQ playback subsystem (Mike Melanson and Tim Ferguson)
762 - Wing Commander III Movie (.mve) file playback subsystem (Mike Melanson
764 - Xan DPCM audio decoder (Mario Brito)
765 - Interplay MVE playback subsystem (Mike Melanson)
766 - Duck DK3 and DK4 ADPCM audio decoders (Mike Melanson)
771 - RealAudio 1.0 (14_4) and 2.0 (28_8) native decoders. Author unknown, code from mplayerhq
772 (originally from public domain player for Amiga at http://www.honeypot.net/audio)
773 - current version now also compiles with older GCC (Fabrice)
774 - 4X multimedia playback system including 4xm file demuxer (Mike
775 Melanson), and 4X video and audio codecs (Michael)
776 - Creative YUV (CYUV) decoder (Mike Melanson)
777 - FFV1 codec (our very simple lossless intra only codec, compresses much better
778 than HuffYUV) (Michael)
779 - ASV1 (Asus), H.264, Intel indeo3 codecs have been added (various)
780 - tiny PNG encoder and decoder, tiny GIF decoder, PAM decoder (PPM with
781 alpha support), JPEG YUV colorspace support. (Fabrice Bellard)
782 - ffplay has been replaced with a newer version which uses SDL (optionally)
783 for multiplatform support (Fabrice)
784 - Sorenson Version 3 codec (SVQ3) support has been added (decoding only) - donated
786 - AMR format has been added (Johannes Carlsson)
787 - 3GP support has been added (Johannes Carlsson)
788 - VP3 codec has been added (Mike Melanson)
789 - more MPEG-1/2 fixes
790 - better multiplatform support, MS Visual Studio fixes (various)
791 - AltiVec optimizations (Magnus Damn and others)
792 - SH4 processor support has been added (BERO)
793 - new public interfaces (avcodec_get_pix_fmt) (Roman Shaposhnick)
794 - VOB streaming support (Brian Foley)
795 - better MP3 autodetection (Andriy Rysin)
796 - qpel encoding (Michael)
797 - 4mv+b frames encoding finally fixed (Michael)
798 - chroma ME (Michael)
799 - 5 comparison functions for ME (Michael)
800 - B-frame encoding speedup (Michael)
801 - WMV2 codec (unfinished - Michael)
802 - user specified diamond size for EPZS (Michael)
803 - Playstation STR playback subsystem, still experimental (Mike and Michael)
804 - ASV2 codec (Michael)
805 - CLJR decoder (Alex)
807 .. And lots more new enhancements and fixes.
812 - completely new integer only MPEG audio layer 1/2/3 decoder rewritten
814 - Recoded DCT and motion vector search with gcc (no longer depends on nasm)
815 - fix quantization bug in AC3 encoder
816 - added PCM codecs and format. Corrected WAV/AVI/ASF PCM issues
817 - added prototype ffplay program
818 - added GOB header parsing on H.263/H.263+ decoder (Juanjo)
819 - bug fix on MCBPC tables of H.263 (Juanjo)
820 - bug fix on DC coefficients of H.263 (Juanjo)
821 - added Advanced Prediction Mode on H.263/H.263+ decoder (Juanjo)
822 - now we can decode H.263 streams found in QuickTime files (Juanjo)
823 - now we can decode H.263 streams found in VIVO v1 files(Juanjo)
824 - preliminary RTP "friendly" mode for H.263/H.263+ coding. (Juanjo)
825 - added GOB header for H.263/H.263+ coding on RTP mode (Juanjo)
826 - now H.263 picture size is returned on the first decoded frame (Juanjo)
827 - added first regression tests
828 - added MPEG-2 TS demuxer
829 - new demux API for libav
830 - more accurate and faster IDCT (Michael)
831 - faster and entropy-controlled motion search (Michael)
832 - two pass video encoding (Michael)
833 - new video rate control (Michael)
834 - added MSMPEG4V1, MSMPEGV2 and WMV1 support (Michael)
835 - great performance improvement of video encoders and decoders (Michael)
836 - new and faster bit readers and vlc parsers (Michael)
837 - high quality encoding mode: tries all macroblock/VLC types (Michael)
838 - added DV video decoder
839 - preliminary RTP/RTSP support in ffserver and libavformat
840 - H.263+ AIC decoding/encoding support (Juanjo)
841 - VCD MPEG-PS mode (Juanjo)
842 - PSNR stuff (Juanjo)
843 - simple stats output (Juanjo)
844 - 16-bit and 15-bit RGB/BGR/GBR support (Bisqwit)
849 - some header fixes (Zdenek Kabelac <kabi at informatics.muni.cz>)
850 - many MMX optimizations (Nick Kurshev <nickols_k at mail.ru>)
851 - added configure system (actually a small shell script)
852 - added MPEG audio layer 1/2/3 decoding using LGPL'ed mpglib by
853 Michael Hipp (temporary solution - waiting for integer only
855 - fixed VIDIOCSYNC interrupt
856 - added Intel H.263 decoding support ('I263' AVI fourCC)
857 - added Real Video 1.0 decoding (needs further testing)
858 - simplified image formats again. Added PGM format (=grey
859 pgm). Renamed old PGM to PGMYUV.
860 - fixed msmpeg4 slice issues (tell me if you still find problems)
861 - fixed OpenDivX bugs with newer versions (added VOL header decoding)
862 - added support for MPlayer interface
863 - added macroblock skip optimization
864 - added MJPEG decoder
865 - added mmx/mmxext IDCT from libmpeg2
866 - added pgmyuvpipe, ppm, and ppm_pipe formats (original patch by Celer
867 <celer at shell.scrypt.net>)
868 - added pixel format conversion layer (e.g. for MJPEG or PPM)
869 - added deinterlacing option
871 - MPEG-4 vol header fixes (Jonathan Marsden <snmjbm at pacbell.net>)
872 - ARM optimizations (Lionel Ulmer <lionel.ulmer at free.fr>).
873 - Windows porting of file converter
874 - added MJPEG raw format (input/ouput)
875 - added JPEG image format support (input/output)
880 - fixed some std header definitions (Bjorn Lindgren
881 <bjorn.e.lindgren at telia.com>).
882 - added MPEG demuxer (MPEG-1 and 2 compatible).
884 - added prototype RM demuxer
885 - added AC3 decoding (done with libac3 by Aaron Holtzman)
886 - added decoding codec parameter guessing (.e.g. for MPEG, because the
887 header does not include them)
888 - fixed header generation in MPEG-1, AVI and ASF muxer: wmplayer can now
889 play them (only tested video)
890 - fixed H.263 white bug
891 - fixed phase rounding in img resample filter
892 - add MMX code for polyphase img resample filter
893 - added CPU autodetection
894 - added generic title/author/copyright/comment string handling (ASF and RM
896 - added SWF demux to extract MP3 track (not usable yet because no MP3
898 - added fractional frame rate support
899 - codecs are no longer searched by read_header() (should fix ffserver
905 - BGR24 patch (initial patch by Jeroen Vreeken <pe1rxq at amsat.org>)
906 - fixed raw yuv output
907 - added motion rounding support in MPEG-4
908 - fixed motion bug rounding in MSMPEG4
909 - added B-frame handling in video core
910 - added full MPEG-1 decoding support
911 - added partial (frame only) MPEG-2 support
912 - changed the FOURCC code for H.263 to "U263" to be able to see the
913 +AVI/H.263 file with the UB Video H.263+ decoder. MPlayer works with
914 this +codec ;) (JuanJo).
915 - Halfpel motion estimation after MB type selection (JuanJo)
916 - added pgm and .Y.U.V output format
917 - suppressed 'img:' protocol. Simply use: /tmp/test%d.[pgm|Y] as input or
919 - added pgmpipe I/O format (original patch from Martin Aumueller
920 <lists at reserv.at>, but changed completely since we use a format
921 instead of a protocol)
926 - added H.263/MPEG-4/MSMPEG4 decoding support. MPEG-4 decoding support
927 (for OpenDivX) is almost complete: 8x8 MVs and rounding are
928 missing. MSMPEG4 support is complete.
929 - added prototype MPEG-1 decoder. Only I- and P-frames handled yet (it
930 can decode ffmpeg MPEGs :-)).
931 - added libavcodec API documentation (see apiexample.c).
932 - fixed image polyphase bug (the bottom of some images could be
934 - added support for non clipped motion vectors (decoding only)
935 and image sizes non-multiple of 16
936 - added support for AC prediction (decoding only)
937 - added file overwrite confirmation (can be disabled with -y)
938 - added custom size picture to H.263 using H.263+ (Juanjo)
943 - added MSMPEG4 (aka DivX) compatible encoder. Changed default codec
944 of AVI and ASF to DIV3.
945 - added -me option to set motion estimation method
946 (default=log). suppressed redundant -hq option.
947 - added options -acodec and -vcodec to force a given codec (useful for
950 - improved dct_quantize speed
951 - factorized some motion estimation code
956 - removing grab code from ffserver and moved it to ffmpeg. Added
957 multistream support to ffmpeg.
958 - added timeshifting support for live feeds (option ?date=xxx in the
960 - added high quality image resize code with polyphase filter (need
961 mmx/see optimization). Enable multiple image size support in ffserver.
962 - added multi live feed support in ffserver
963 - suppressed master feature from ffserver (it should be done with an
964 external program which opens the .ffm url and writes it to another
966 - added preliminary support for video stream parsing (WAV and AVI half
967 done). Added proper support for audio/video file conversion in
969 - added preliminary support for video file sending from ffserver
970 - redesigning I/O subsystem: now using URL based input and output
972 - added WAV format support
973 - added "tty user interface" to ffmpeg to stop grabbing gracefully
974 - added MMX/SSE optimizations to SAD (Sums of Absolutes Differences)
975 (Juan J. Sierralta P. a.k.a. "Juanjo" <juanjo at atmlab.utfsm.cl>)
976 - added MMX DCT from mpeg2_movie 1.5 (Juanjo)
977 - added new motion estimation algorithms, log and phods (Juanjo)
978 - changed directories: libav for format handling, libavcodec for
984 - added stereo in MPEG audio encoder
989 - added 'high quality' mode which use motion vectors. It can be used in
990 real time at low resolution.
991 - fixed rounding problems which caused quality problems at high
992 bitrates and large GOP size
995 version 0.3.2: small fixes
1001 version 0.3.1: added avi/divx support
1004 - added MPEG-4 codec compatible with OpenDivX. It is based on the H.263 codec
1005 - added sound for flash format (not tested)
1008 version 0.3: initial public release