1 Entries are sorted chronologically from oldest to youngest within each release,
2 releases are sorted from youngest to oldest.
5 - HEVC/H.265 RTP payload format (draft v6) depacketizer
10 - shuffleplanes filter
11 - replaygain data export
12 - Alias PIX image encoder and decoder
13 - BRender PIX image decoder
14 - Amazing Studio PAF playback support
16 - BMP standalone parser
17 - OpenEXR image decoder
18 - support encoding and decoding 4-channel SGI images
19 - support decoding 16-bit RLE SGI images
21 - LucasArts SMUSH SANM video decoder
22 - LucasArts SMUSH VIMA audio decoder (ADPCM)
23 - LucasArts SMUSH demuxer
24 - MP2 encoding via TwoLAME
26 - Silicon Graphics RLE 8-bit video decoder
27 - Silicon Graphics Motion Video Compressor 1 & 2 decoder
28 - Silicon Graphics Movie demuxer
29 - On2 AVC (Audio for Video) decoder
30 - support for decoding through DXVA2 in avconv
31 - libbs2b-based stereo-to-binaural audio filter
33 - display matrix export and rotation API
34 - drop avserver, it was unmaintained for years and largely broken
36 - request Icecast metadata by default
37 - support for using metadata in stream specifiers in avtools
38 - aliases and defaults for Ogg subtypes (opus, spx)
44 - support ID3v2 tags in ASF files
45 - reference-counting for AVFrame and AVPacket data
46 - avconv now fails when input options are used for output file
48 - avconv options -filter_script and -filter_complex_script, which allow a
49 filtergraph description to be read from a file
50 - uniform options syntax across all filters
53 - asetpts filter (same as setpts, but for audio)
54 - trim and atrim filters
55 - avconv -t and -ss (output-only) options are now sample-accurate when
57 - Matroska muxer can now put the index at the beginning of the file.
58 - avconv -deinterlace option removed, the yadif filter should be used instead
59 - Apple Intermediate Codec decoder
60 - Escape 130 video decoder
61 - support for slice multithreading in libavfilter
62 - VC-1 interlaced B-frame support
63 - support for WavPack muxing (raw and in Matroska)
65 - WavPack encoding through libwavpack
66 - Added the -n parameter to avconv
68 - when transcoding with avconv (i.e. not streamcopying), -ss is now accurate
69 even when used as an input option. Previous behavior can be restored with
70 the -noaccurate_seek option.
71 - avconv -t option can now be used for inputs, to limit the duration of
72 data read from an input file
73 - Voxware MetaSound decoder
75 - Error Resilient AAC syntax (ER AAC LC) decoding
76 - Low Delay AAC (ER AAC LD) decoding
77 - mux chapters in ASF files
78 - Opus in Ogg demuxing
79 - Enhanced Low Delay AAC (ER AAC ELD) decoding (no LD SBR support)
81 - HNM version 4 demuxer and video decoder
83 - raw HEVC, HEVC in MOV/MP4, HEVC in Matroska, HEVC in MPEG-TS demuxing
84 - remove avplay -vismv option, which has not worked for a long time
86 - setsar/setdar filters now support variables in ratio expressions
87 - dar variable in the scale filter now returns the actual DAR (i.e. a * sar)
89 - support for decoding through VDPAU in avconv (the -hwaccel option)
90 - remove mp3_header_(de)compress bitstream filters
91 - stereoscopic 3d metadata handling
92 - png standalone parser
93 - WebP encoding via libwebp
96 - Mirillis FIC video decoder
98 - compand audio filter
102 - av_basename and av_dirname
103 - adobe and limelight publisher authentication in RTMP
104 - VDPAU hardware acceleration through normal hwaccel
109 - ashowinfo audio filter
110 - 24-bit FLAC encoding
111 - audio volume filter
112 - deprecated the avconv -vol option. the volume filter is to be used instead.
113 - multi-channel ALAC encoding up to 7.1
114 - TAK demuxer, parser, and decoder
115 - adaptive frame-level multithreading for H.264
119 - metadata (INFO tag) support in WAV muxer
120 - support for building DLLs using MSVC
121 - remove avserver daemon mode
122 - support building on the Plan 9 operating system
123 - ffv1: support version 1.3
128 - XWD encoder and decoder
129 - Support for fragmentation in the mov/mp4 muxer
130 - ISMV (Smooth Streaming) muxer
131 - CDXL demuxer and decoder
132 - Apple ProRes encoder
133 - Sun Rasterfile Encoder
135 - ID3v2 attached pictures reading and writing
136 - WMA Lossless decoder
138 - RealAudio Lossless decoder
140 - drop support for avconv without libavfilter
141 - add libavresample audio conversion library
142 - audio filters support in libavfilter and avconv
146 - avprobe output is now standard INI or JSON. The old format can still
147 be used with -of old.
148 - Indeo Audio decoder
149 - channelsplit audio filter
150 - RTMPT protocol support
151 - iLBC encoding/decoding via libilbc
152 - Microsoft Screen 1 decoder
154 - audio channel mapping filter
155 - Microsoft ATC Screen decoder
157 - TechSmith Screen Codec 2 decoder
158 - AAC encoding via libfdk-aac
159 - Microsoft Expression Encoder Screen decoder
160 - RTMPS protocol support
161 - RTMPTS protocol support
162 - JPEG 2000 encoding support through OpenJPEG
163 - G.723.1 demuxer and decoder
164 - RTMPE protocol support
165 - RTMPTE protocol support
166 - Canopus Lossless Codec decoder
167 - avconv -shortest option is now per-output file,
168 -pass and -passlogfile are now per-output stream
170 - Microsoft Screen 2 decoder
171 - RTP depacketization of JPEG
172 - Smooth Streaming live segmenter muxer
173 - RTP packetization of JPEG
174 - Opus decoder and encoder using libopus
175 - remove -same_quant, it hasn't worked for years
176 - support for building with MSVC
187 - Automatic thread count based on detection number of (available) CPU cores
188 - Deprecate libpostproc. If desired, the switch --enable-postproc will
189 enable it but it may be removed in a later Libav release.
190 - rv34: frame-level multi-threading
191 - optimized iMDCT transform on x86 using SSE for for mpegaudiodec
197 - Flash Screen Video 2 decoder
198 - ffplay/ffprobe/ffserver renamed to avplay/avprobe/avserver
199 - ffmpeg deprecated, added avconv, which is almost the same for now, except
200 for a few incompatible changes in the options, which will hopefully make them
201 easier to use. The changes are:
202 * The options placement is now strictly enforced! While in theory the
203 options for ffmpeg should be given in [input options] -i INPUT [output
204 options] OUTPUT order, in practice it was possible to give output options
205 before the -i and it mostly worked. Except when it didn't - the behavior was
206 a bit inconsistent. In avconv, it is not possible to mix input and output
207 options. All non-global options are reset after an input or output filename.
208 * All per-file options are now truly per-file - they apply only to the next
209 input or output file and specifying different values for different files
210 will now work properly (notably -ss and -t options).
211 * All per-stream options are now truly per-stream - it is possible to
212 specify which stream(s) should a given option apply to. See the Stream
213 specifiers section in the avconv manual for details.
214 * In ffmpeg some options (like -newvideo/-newaudio/...) are irregular in the
215 sense that they're specified after the output filename instead of before,
216 like all other options. In avconv this irregularity is removed, all options
217 apply to the next input or output file.
218 * -newvideo/-newaudio/-newsubtitle options were removed. Not only were they
219 irregular and highly confusing, they were also redundant. In avconv the -map
220 option will create new streams in the output file and map input streams to
221 them. E.g. avconv -i INPUT -map 0 OUTPUT will create an output stream for
222 each stream in the first input file.
223 * The -map option now has slightly different and more powerful syntax:
224 + Colons (':') are used to separate file index/stream type/stream index
225 instead of dots. Comma (',') is used to separate the sync stream instead
226 of colon.. This is done for consistency with other options.
227 + It's possible to specify stream type. E.g. -map 0:a:2 creates an
228 output stream from the third input audio stream.
229 + Omitting the stream index now maps all the streams of the given type,
230 not just the first. E.g. -map 0:s creates output streams for all the
231 subtitle streams in the first input file.
232 + Since -map can now match multiple streams, negative mappings were
233 introduced. Negative mappings disable some streams from an already
234 defined map. E.g. '-map 0 -map -0:a:1' means 'create output streams for
235 all the stream in the first input file, except for the second audio
237 * There is a new option -c (or -codec) for choosing the decoder/encoder to
238 use, which allows to precisely specify target stream(s) consistently with
239 other options. E.g. -c:v lib264 sets the codec for all video streams, -c:a:0
240 libvorbis sets the codec for the first audio stream and -c copy copies all
241 the streams without reencoding. Old -vcodec/-acodec/-scodec options are now
243 * It is now possible to precisely specify which stream should an AVOption
244 apply to. E.g. -b:v:0 2M sets the bitrate for the first video stream, while
245 -b:a 128k sets the bitrate for all audio streams. Note that the old -ab 128k
246 syntax is deprecated and will stop working soon.
247 * -map_chapters now takes only an input file index and applies to the next
248 output file. This is consistent with how all the other options work.
249 * -map_metadata now takes only an input metadata specifier and applies to
250 the next output file. Output metadata specifier is now part of the option
251 name, similarly to the AVOptions/map/codec feature above.
252 * -metadata can now be used to set metadata on streams and chapters, e.g.
253 -metadata:s:1 language=eng sets the language of the first stream to 'eng'.
254 This made -vlang/-alang/-slang options redundant, so they were removed.
255 * -qscale option now uses stream specifiers and applies to all streams, not
256 just video. I.e. plain -qscale number would now apply to all streams. To get
257 the old behavior, use -qscale:v. Also there is now a shortcut -q for -qscale
258 and -aq is now an alias for -q:a.
259 * -vbsf/-absf/-sbsf options were removed and replaced by a -bsf option which
260 uses stream specifiers. Use -bsf:v/a/s instead of the old options.
261 * -itsscale option now uses stream specifiers, so its argument is only the
263 * -intra option was removed, use -g 0 for the same effect.
264 * -psnr option was removed, use -flags +psnr for the same effect.
265 * -vf option is now an alias to the new -filter option, which uses stream specifiers.
266 * -vframes/-aframes/-dframes options are now aliases to the new -frames option.
267 * -vtag/-atag/-stag options are now aliases to the new -tag option.
269 - Windows Media Image decoder
273 - libcdio-paranoia input device for audio CD grabbing
275 - Apple ProRes decoder
276 - CELT in Ogg demuxing
277 - VC-1 interlaced decoding
278 - lut, lutrgb, and lutyuv filters
281 - Speex encoding via libspeex
282 - 4:2:2 H.264 decoding support
283 - 4:2:2 and 4:4:4 H.264 encoding with libx264
284 - Pulseaudio input device
285 - replacement Indeo 3 decoder
286 - TLS/SSL and HTTPS protocol support
287 - AVOptions API rewritten and documented
288 - most of CODEC_FLAG2_*, some CODEC_FLAG_* and many codec-specific fields in
289 AVCodecContext deprecated. Codec private options should be used instead.
290 - Properly working defaults in libx264 wrapper, support for native presets.
291 - Encrypted OMA files support
292 - Discworld II BMV decoding support
294 - OS X Video Decoder Acceleration (VDA) support
295 - CRI ADX audio format muxer and demuxer
296 - Playstation Portable PMP format demuxer
297 - PCM format support in OMA demuxer
299 - Dxtory capture format decoder
300 - v410 QuickTime uncompressed 4:4:4 10-bit encoder and decoder
302 - Simple segmenting muxer
309 - E-AC-3 audio encoder
310 - ac3enc: add channel coupling support
311 - floating-point sample format support for (E-)AC-3, DCA, AAC, Vorbis decoders
312 - H.264/MPEG frame-level multithreading
313 - av_metadata_* functions renamed to av_dict_* and moved to libavutil
314 - 4:4:4 H.264 decoding support
315 - 10-bit H.264 optimizations for x86
316 - bump libswscale for recently reported ABI break
321 - VP8 frame-level multithreading
322 - NEON optimizations for VP8
323 - removed a lot of deprecated API cruft
324 - FFT and IMDCT optimizations for AVX (Sandy Bridge) processors
326 - SMPTE 302M AES3 audio decoder
327 - ffmpeg no longer quits after the 'q' key is pressed; use 'ctrl+c' instead
328 - 9bit and 10bit per sample support in the H.264 decoder
333 - WebM support in Matroska de/muxer
334 - low overhead Ogg muxing
336 - VP8 de/encoding via libvpx
337 - Demuxer for On2's IVF format
338 - Pictor/PC Paint decoder
340 - libfaad2 wrapper removed
341 - DTS-ES extension (XCh) decoding support
343 - RTSP tunneling over HTTP
344 - RTP depacketization of SVQ3
345 - -strict inofficial replaced by -strict unofficial
346 - ffplay -exitonkeydown and -exitonmousedown options added
347 - native GSM / GSM MS decoder
348 - RTP depacketization of QDM2
349 - ANSI/ASCII art playback system
350 - Lego Mindstorms RSO de/muxer
351 - SubRip subtitle file muxer and demuxer
352 - Chinese AVS encoding via libxavs
353 - ffprobe -show_packets option added
354 - RTP packetization of Theora and Vorbis
355 - RTP depacketization of MP4A-LATM
356 - RTP packetization and depacketization of VP8
358 - Apple HTTP Live Streaming demuxer
361 - G.722 ADPCM audio encoder/decoder
364 - frei0r wrapper filter
365 - change crop filter syntax to width:height:x:y
366 - make the crop filter accept parametric expressions
367 - make ffprobe accept AVFormatContext options
370 - Demuxer for Leitch/Harris' VR native stream format (LXF)
371 - RTP depacketization of the X-QT QuickTime format
372 - SAP (Session Announcement Protocol, RFC 2974) muxer and demuxer
374 - ffmpeg -crop* options removed
375 - transpose filter added
376 - ffmpeg -force_key_frames option added
377 - demuxer for receiving raw rtp:// URLs without an SDP description
378 - single stream LATM/LOAS decoder
379 - setpts filter added
380 - Win64 support for optimized x86 assembly functions
381 - MJPEG/AVI1 to JPEG/JFIF bitstream filter
382 - ASS subtitle encoder and decoder
383 - IEC 61937 encapsulation for E-AC-3, TrueHD, DTS-HD (for HDMI passthrough)
384 - overlay filter added
385 - rename aspect filter to setdar, and pixelaspect to setsar
387 - Mobotix .mxg demuxer
388 - frei0r source added
389 - hqdn3d filter added
390 - RTP depacketization of QCELP
392 - gradfun filter added
394 - replace the ocv_smooth filter with a more generic ocv filter
395 - Windows Televison (WTV) demuxer
396 - FFmpeg metadata format muxer and demuxer
397 - SubRip (srt) subtitle decoder
398 - floating-point AC-3 encoder added
400 - ffmpeg -copytb option added
402 - Wing Commander IV movies decoder added
404 - Bink version 'b' audio and video decoder
405 - Bitmap Brothers JV playback system
406 - Apple HTTP Live Streaming protocol handler
407 - sndio support for playback and record
408 - Linux framebuffer input device added
409 - Chronomaster DFA decoder
410 - Mobotix MxPEG decoder
411 - AAC encoding via libvo-aacenc
412 - AMR-WB encoding via libvo-amrwbenc
414 - fieldorder video filter added
419 - PB-frame decoding for H.263
420 - deprecated vhook subsystem removed
421 - deprecated old scaler removed
423 - Alpha channel scaler
425 - RTP packetization of H.263
426 - RTP packetization of AMR
427 - RTP depacketization of Vorbis
428 - CorePNG decoding support
429 - Cook multichannel decoding support
430 - introduced avlanguage helpers in libavformat
431 - 8088flex TMV demuxer and decoder
432 - per-stream language-tags extraction in asfdec
433 - V210 decoder and encoder
434 - remaining GPL parts in AC-3 decoder converted to LGPL
436 - SoX native format muxer and demuxer
437 - AMR-NB decoding/encoding, AMR-WB decoding via OpenCORE libraries
439 - Electronic Arts Madcow decoder
440 - DivX (XSUB) subtitle encoder
441 - nonfree libamr support for AMR-NB/WB decoding/encoding removed
442 - experimental AAC encoder
443 - RTP depacketization of ASF and RTSP from WMS servers
444 - RTMP support in libavformat
445 - noX handling for OPT_BOOL X options
447 - IEC-61937 compatible Muxer
449 - Bluray (PGS) subtitle decoder
450 - LPCM support in MPEG-TS (HDMV RID as found on Blu-ray disks)
452 - Core Audio Format demuxer
454 - MD STUDIO audio demuxer
455 - RF64 support in WAV demuxer
456 - MPEG-4 Audio Lossless Coding (ALS) decoder
457 - -formats option split into -formats, -codecs, -bsfs, and -protocols
459 - CDG demuxer and decoder
461 - Auravision Aura 1 and 2 decoders
462 - Deluxe Paint Animation playback system
464 - Adobe Filmstrip muxer and demuxer
465 - RTP depacketization of H.263
466 - Bink demuxer and audio/video decoders
467 - enable symbol versioning by default for linkers that support it
468 - IFF PBM/ILBM bitmap decoder
471 - RTP depacketization of AMR
477 - Kega Game Video (KGV1) decoder
478 - VorbisComment writing for FLAC, Ogg FLAC and Ogg Speex files
479 - RTP depacketization of Theora
480 - HTTP Digest authentication
481 - RTMP/RTMPT/RTMPS/RTMPE/RTMPTE protocol support via librtmp
482 - Psygnosis YOP demuxer and video decoder
483 - spectral extension support in the E-AC-3 decoder
484 - unsharp video filter
485 - RTP hinting in the mov/3gp/mp4 muxer
486 - Dirac in Ogg demuxing
487 - seek to keyframes in Ogg
488 - 4:2:2 and 4:4:4 Theora decoding
489 - 35% faster VP3/Theora decoding
490 - faster AAC decoding
491 - faster H.264 decoding
492 - RealAudio 1.0 (14.4K) encoder
497 - DV50 AKA DVCPRO50 encoder, decoder, muxer and demuxer
498 - TechSmith Camtasia (TSCC) video decoder
499 - IBM Ultimotion (ULTI) video decoder
500 - Sierra Online audio file demuxer and decoder
501 - Apple QuickDraw (qdrw) video decoder
502 - Creative ADPCM audio decoder (16 bits as well as 8 bits schemes)
503 - Electronic Arts Multimedia (WVE/UV2/etc.) file demuxer
504 - Miro VideoXL (VIXL) video decoder
505 - H.261 video encoder
507 - Nullsoft Video (NSV) file demuxer
508 - Shorten audio decoder
510 - Apple Lossless Audio Codec (ALAC) decoder
511 - Winnov WNV1 video decoder
512 - Autodesk Animator Studio Codec (AASC) decoder
513 - Indeo 2 video decoder
514 - Fraps FPS1 video decoder
515 - Snow video encoder/decoder
516 - Sonic audio encoder/decoder
517 - Vorbis audio decoder
518 - Macromedia ADPCM decoder
519 - Duck TrueMotion 2 video decoder
520 - support for decoding FLX and DTA extensions in FLIC files
521 - H.264 custom quantization matrices support
522 - ffserver fixed, it should now be usable again
524 - Real Cooker audio decoder
525 - TrueSpeech audio decoder
526 - WMA2 audio decoder fixed, now all files should play correctly
527 - RealAudio 14.4 and 28.8 decoders fixed
529 - build system improvements
530 - tabs and trailing whitespace removed from the codebase
531 - CamStudio video decoder
532 - AIFF/AIFF-C audio format, encoding and decoding
533 - ADTS AAC file reading and writing
534 - Creative VOC file reading and writing
535 - American Laser Games multimedia (*.mm) playback system
536 - Zip Motion Blocks Video decoder
537 - improved Theora/VP3 decoder
538 - True Audio (TTA) decoder
539 - AVS demuxer and video decoder
541 - Smacker demuxer and decoder
542 - NuppelVideo/MythTV demuxer and RTjpeg decoder
544 - MPEG-2 intra VLC support
545 - MPEG-2 4:2:2 encoder
546 - Flash Screen Video decoder
548 - Chinese AVS decoder
551 - VC-1/WMV3/WMV9 video decoder
554 - VMware video decoder
557 - WavPack lossless audio decoder
558 - Targa (.TGA) picture decoder
559 - Vorbis audio encoder
560 - Delphine Software .cin demuxer/audio and video decoder
561 - Tiertex .seq demuxer/video decoder
563 - TIFF picture encoder and decoder
564 - GIF picture decoder
565 - Intel Music Coder decoder
566 - Zip Motion Blocks Video encoder
568 - Flash Screen Video encoder
569 - Theora encoding via libtheora
572 - GSM-MS encoder and decoder
574 - DXA demuxer and decoder
576 - Gamecube movie (.THP) playback system
577 - Blackfin optimizations
578 - Interplay C93 demuxer and video decoder
579 - Bethsoft VID demuxer and video decoder
582 - V.Flash PTX decoder
583 - RoQ muxer, RoQ audio encoder
584 - Renderware TXD demuxer and decoder
585 - extern C declarations for C++ removed from headers
586 - sws_flags command line option
590 - OS/2 support removed and restored again
593 - additional SPARC (VIS) optimizations
595 - slice-based parallel H.264 decoding
596 - Monkey's Audio demuxer and decoder
597 - AMV audio and video decoder
599 - H.264 PAFF decoding
600 - Nellymoser ASAO decoder
601 - Beam Software SIFF demuxer and decoder
602 - libvorbis Vorbis decoding removed in favor of native decoder
603 - IntraX8 (J-Frame) subdecoder for WMV2 and VC-1
604 - Ogg (Theora, Vorbis and FLAC) muxer
605 - The "device" muxers and demuxers are now in a new libavdevice library
606 - PC Paintbrush PCX decoder
607 - Sun Rasterfile decoder
608 - TechnoTrend PVA demuxer
609 - Linux Media Labs MPEG-4 (LMLM4) demuxer
610 - AVM2 (Flash 9) SWF muxer
611 - QT variant of IMA ADPCM encoder
613 - iPod/iPhone compatible mp4 muxer
615 - MSN TCP Webcam stream demuxer
616 - RL2 demuxer / decoder
619 - non-recursive Makefiles
621 - MAXIS EA XA (.xa) demuxer / decoder
625 - Electronic Arts CMV decoder
626 - Motion Pixels Video decoder
627 - Motion Pixels MVI demuxer
628 - removed animated GIF decoder/demuxer
629 - D-Cinema audio muxer
630 - Electronic Arts TGV decoder
631 - Apple Lossless Audio Codec (ALAC) encoder
633 - floating point PCM encoder/decoder
635 - DV100 AKA DVCPRO HD decoder and demuxer
636 - E-AC-3 support added to AC-3 decoder
637 - Nellymoser ASAO encoder
638 - ASS and SSA demuxer and muxer
639 - liba52 wrapper removed
640 - SVQ3 watermark decoding support
641 - Speex decoding via libspeex
642 - Electronic Arts TGQ decoder
644 - QCELP / PureVoice decoder
646 - hybrid WavPack support
647 - R3D REDCODE demuxer
648 - ALSA support for playback and record
649 - Electronic Arts TQI decoder
650 - OpenJPEG based JPEG 2000 decoder
651 - NC (NC4600) camera file demuxer
652 - Gopher client support
654 - generic metadata API
659 - DV encoder, DV muxer
660 - Microsoft RLE video decoder
661 - Microsoft Video-1 decoder
662 - Apple Animation (RLE) decoder
663 - Apple Graphics (SMC) decoder
664 - Apple Video (RPZA) decoder
666 - Sega FILM (CPK) file demuxer
667 - Westwood multimedia support (VQA & AUD files)
668 - Id Quake II CIN playback support
670 - FLIC playback support
671 - RealVideo 2.0 (RV20) decoder
672 - Duck TrueMotion v1 (DUCK) video decoder
673 - Sierra VMD demuxer and video decoder
674 - MSZH and ZLIB decoder support
678 - rate distortion optimal cbp support
679 - rate distorted optimal ac prediction for MPEG-4
680 - rate distorted optimal lambda->qp support
681 - AAC encoding with libfaac
682 - Sunplus JPEG codec (SP5X) support
683 - use Lagrange multipler instead of QP for ratecontrol
684 - Theora/VP3 decoding support
685 - XA and ADX ADPCM codecs
686 - export MPEG-2 active display area / pan scan
687 - Add support for configuring with IBM XLC
688 - floating point AAN DCT
689 - initial support for zygo video (not complete)
691 - new audio/video parser API
693 - av_read_frame() and av_seek_frame() support
694 - missing last frame fixes
695 - seek by mouse in ffplay
696 - noise reduction of DCT coefficients
697 - H.263 OBMC & 4MV support
698 - H.263 alternative inter vlc support
700 - H.263 slice structured mode
701 - interlaced DCT support for MPEG-2 encoding
702 - stuffing to stay above min_bitrate
703 - MB type & QP visualization
704 - frame stepping for ffplay
705 - interlaced motion estimation
706 - alternate scantable support
707 - SVCD scan offset support
710 - quantizer noise shaping
711 - G.726 ADPCM audio codec
713 - multithreaded/SMP motion estimation
714 - multithreaded/SMP encoding for MPEG-1/MPEG-2/MPEG-4/H.263
715 - multithreaded/SMP decoding for MPEG-2
717 - Metrowerks CodeWarrior suppport
718 - H.263+ custom pcf support
719 - nicer output for 'ffmpeg -formats'
721 - SGI image format, encoding and decoding
722 - H.264 loop filter support
723 - H.264 CABAC support
724 - nicer looking arrows for the motion vector visualization
725 - improved VCD support
726 - audio timestamp drift compensation
727 - MPEG-2 YUV 422/444 support
728 - polyphase kaiser windowed sinc and blackman nuttall windowed sinc audio resample
729 - better image scaling
731 - correctly interleave packets during encoding
732 - VIS optimized motion compensation
733 - intra_dc_precision>0 encoding support
734 - support reuse of motion vectors/MB types/field select values of the source video
735 - more accurate deblock filter
737 - many optimizations and bugfixes
738 - FunCom ISS audio file demuxer and according ADPCM decoding
743 - MPEG-2 video encoding (Michael)
744 - Id RoQ playback subsystem (Mike Melanson and Tim Ferguson)
745 - Wing Commander III Movie (.mve) file playback subsystem (Mike Melanson
747 - Xan DPCM audio decoder (Mario Brito)
748 - Interplay MVE playback subsystem (Mike Melanson)
749 - Duck DK3 and DK4 ADPCM audio decoders (Mike Melanson)
754 - RealAudio 1.0 (14_4) and 2.0 (28_8) native decoders. Author unknown, code from mplayerhq
755 (originally from public domain player for Amiga at http://www.honeypot.net/audio)
756 - current version now also compiles with older GCC (Fabrice)
757 - 4X multimedia playback system including 4xm file demuxer (Mike
758 Melanson), and 4X video and audio codecs (Michael)
759 - Creative YUV (CYUV) decoder (Mike Melanson)
760 - FFV1 codec (our very simple lossless intra only codec, compresses much better
761 than HuffYUV) (Michael)
762 - ASV1 (Asus), H.264, Intel indeo3 codecs have been added (various)
763 - tiny PNG encoder and decoder, tiny GIF decoder, PAM decoder (PPM with
764 alpha support), JPEG YUV colorspace support. (Fabrice Bellard)
765 - ffplay has been replaced with a newer version which uses SDL (optionally)
766 for multiplatform support (Fabrice)
767 - Sorenson Version 3 codec (SVQ3) support has been added (decoding only) - donated
769 - AMR format has been added (Johannes Carlsson)
770 - 3GP support has been added (Johannes Carlsson)
771 - VP3 codec has been added (Mike Melanson)
772 - more MPEG-1/2 fixes
773 - better multiplatform support, MS Visual Studio fixes (various)
774 - AltiVec optimizations (Magnus Damn and others)
775 - SH4 processor support has been added (BERO)
776 - new public interfaces (avcodec_get_pix_fmt) (Roman Shaposhnick)
777 - VOB streaming support (Brian Foley)
778 - better MP3 autodetection (Andriy Rysin)
779 - qpel encoding (Michael)
780 - 4mv+b frames encoding finally fixed (Michael)
781 - chroma ME (Michael)
782 - 5 comparison functions for ME (Michael)
783 - B-frame encoding speedup (Michael)
784 - WMV2 codec (unfinished - Michael)
785 - user specified diamond size for EPZS (Michael)
786 - Playstation STR playback subsystem, still experimental (Mike and Michael)
787 - ASV2 codec (Michael)
788 - CLJR decoder (Alex)
790 .. And lots more new enhancements and fixes.
795 - completely new integer only MPEG audio layer 1/2/3 decoder rewritten
797 - Recoded DCT and motion vector search with gcc (no longer depends on nasm)
798 - fix quantization bug in AC3 encoder
799 - added PCM codecs and format. Corrected WAV/AVI/ASF PCM issues
800 - added prototype ffplay program
801 - added GOB header parsing on H.263/H.263+ decoder (Juanjo)
802 - bug fix on MCBPC tables of H.263 (Juanjo)
803 - bug fix on DC coefficients of H.263 (Juanjo)
804 - added Advanced Prediction Mode on H.263/H.263+ decoder (Juanjo)
805 - now we can decode H.263 streams found in QuickTime files (Juanjo)
806 - now we can decode H.263 streams found in VIVO v1 files(Juanjo)
807 - preliminary RTP "friendly" mode for H.263/H.263+ coding. (Juanjo)
808 - added GOB header for H.263/H.263+ coding on RTP mode (Juanjo)
809 - now H.263 picture size is returned on the first decoded frame (Juanjo)
810 - added first regression tests
811 - added MPEG-2 TS demuxer
812 - new demux API for libav
813 - more accurate and faster IDCT (Michael)
814 - faster and entropy-controlled motion search (Michael)
815 - two pass video encoding (Michael)
816 - new video rate control (Michael)
817 - added MSMPEG4V1, MSMPEGV2 and WMV1 support (Michael)
818 - great performance improvement of video encoders and decoders (Michael)
819 - new and faster bit readers and vlc parsers (Michael)
820 - high quality encoding mode: tries all macroblock/VLC types (Michael)
821 - added DV video decoder
822 - preliminary RTP/RTSP support in ffserver and libavformat
823 - H.263+ AIC decoding/encoding support (Juanjo)
824 - VCD MPEG-PS mode (Juanjo)
825 - PSNR stuff (Juanjo)
826 - simple stats output (Juanjo)
827 - 16-bit and 15-bit RGB/BGR/GBR support (Bisqwit)
832 - some header fixes (Zdenek Kabelac <kabi at informatics.muni.cz>)
833 - many MMX optimizations (Nick Kurshev <nickols_k at mail.ru>)
834 - added configure system (actually a small shell script)
835 - added MPEG audio layer 1/2/3 decoding using LGPL'ed mpglib by
836 Michael Hipp (temporary solution - waiting for integer only
838 - fixed VIDIOCSYNC interrupt
839 - added Intel H.263 decoding support ('I263' AVI fourCC)
840 - added Real Video 1.0 decoding (needs further testing)
841 - simplified image formats again. Added PGM format (=grey
842 pgm). Renamed old PGM to PGMYUV.
843 - fixed msmpeg4 slice issues (tell me if you still find problems)
844 - fixed OpenDivX bugs with newer versions (added VOL header decoding)
845 - added support for MPlayer interface
846 - added macroblock skip optimization
847 - added MJPEG decoder
848 - added mmx/mmxext IDCT from libmpeg2
849 - added pgmyuvpipe, ppm, and ppm_pipe formats (original patch by Celer
850 <celer at shell.scrypt.net>)
851 - added pixel format conversion layer (e.g. for MJPEG or PPM)
852 - added deinterlacing option
854 - MPEG-4 vol header fixes (Jonathan Marsden <snmjbm at pacbell.net>)
855 - ARM optimizations (Lionel Ulmer <lionel.ulmer at free.fr>).
856 - Windows porting of file converter
857 - added MJPEG raw format (input/ouput)
858 - added JPEG image format support (input/output)
863 - fixed some std header definitions (Bjorn Lindgren
864 <bjorn.e.lindgren at telia.com>).
865 - added MPEG demuxer (MPEG-1 and 2 compatible).
867 - added prototype RM demuxer
868 - added AC3 decoding (done with libac3 by Aaron Holtzman)
869 - added decoding codec parameter guessing (.e.g. for MPEG, because the
870 header does not include them)
871 - fixed header generation in MPEG-1, AVI and ASF muxer: wmplayer can now
872 play them (only tested video)
873 - fixed H.263 white bug
874 - fixed phase rounding in img resample filter
875 - add MMX code for polyphase img resample filter
876 - added CPU autodetection
877 - added generic title/author/copyright/comment string handling (ASF and RM
879 - added SWF demux to extract MP3 track (not usable yet because no MP3
881 - added fractional frame rate support
882 - codecs are no longer searched by read_header() (should fix ffserver
888 - BGR24 patch (initial patch by Jeroen Vreeken <pe1rxq at amsat.org>)
889 - fixed raw yuv output
890 - added motion rounding support in MPEG-4
891 - fixed motion bug rounding in MSMPEG4
892 - added B-frame handling in video core
893 - added full MPEG-1 decoding support
894 - added partial (frame only) MPEG-2 support
895 - changed the FOURCC code for H.263 to "U263" to be able to see the
896 +AVI/H.263 file with the UB Video H.263+ decoder. MPlayer works with
897 this +codec ;) (JuanJo).
898 - Halfpel motion estimation after MB type selection (JuanJo)
899 - added pgm and .Y.U.V output format
900 - suppressed 'img:' protocol. Simply use: /tmp/test%d.[pgm|Y] as input or
902 - added pgmpipe I/O format (original patch from Martin Aumueller
903 <lists at reserv.at>, but changed completely since we use a format
904 instead of a protocol)
909 - added H.263/MPEG-4/MSMPEG4 decoding support. MPEG-4 decoding support
910 (for OpenDivX) is almost complete: 8x8 MVs and rounding are
911 missing. MSMPEG4 support is complete.
912 - added prototype MPEG-1 decoder. Only I- and P-frames handled yet (it
913 can decode ffmpeg MPEGs :-)).
914 - added libavcodec API documentation (see apiexample.c).
915 - fixed image polyphase bug (the bottom of some images could be
917 - added support for non clipped motion vectors (decoding only)
918 and image sizes non-multiple of 16
919 - added support for AC prediction (decoding only)
920 - added file overwrite confirmation (can be disabled with -y)
921 - added custom size picture to H.263 using H.263+ (Juanjo)
926 - added MSMPEG4 (aka DivX) compatible encoder. Changed default codec
927 of AVI and ASF to DIV3.
928 - added -me option to set motion estimation method
929 (default=log). suppressed redundant -hq option.
930 - added options -acodec and -vcodec to force a given codec (useful for
933 - improved dct_quantize speed
934 - factorized some motion estimation code
939 - removing grab code from ffserver and moved it to ffmpeg. Added
940 multistream support to ffmpeg.
941 - added timeshifting support for live feeds (option ?date=xxx in the
943 - added high quality image resize code with polyphase filter (need
944 mmx/see optimization). Enable multiple image size support in ffserver.
945 - added multi live feed support in ffserver
946 - suppressed master feature from ffserver (it should be done with an
947 external program which opens the .ffm url and writes it to another
949 - added preliminary support for video stream parsing (WAV and AVI half
950 done). Added proper support for audio/video file conversion in
952 - added preliminary support for video file sending from ffserver
953 - redesigning I/O subsystem: now using URL based input and output
955 - added WAV format support
956 - added "tty user interface" to ffmpeg to stop grabbing gracefully
957 - added MMX/SSE optimizations to SAD (Sums of Absolutes Differences)
958 (Juan J. Sierralta P. a.k.a. "Juanjo" <juanjo at atmlab.utfsm.cl>)
959 - added MMX DCT from mpeg2_movie 1.5 (Juanjo)
960 - added new motion estimation algorithms, log and phods (Juanjo)
961 - changed directories: libav for format handling, libavcodec for
967 - added stereo in MPEG audio encoder
972 - added 'high quality' mode which use motion vectors. It can be used in
973 real time at low resolution.
974 - fixed rounding problems which caused quality problems at high
975 bitrates and large GOP size
978 version 0.3.2: small fixes
984 version 0.3.1: added avi/divx support
987 - added MPEG-4 codec compatible with OpenDivX. It is based on the H.263 codec
988 - added sound for flash format (not tested)
991 version 0.3: initial public release