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
15 - shuffleplanes filter
16 - replaygain data export
17 - Alias PIX image encoder and decoder
18 - BRender PIX image decoder
19 - Amazing Studio PAF playback support
21 - BMP standalone parser
22 - OpenEXR image decoder
23 - support encoding and decoding 4-channel SGI images
24 - support decoding 16-bit RLE SGI images
26 - LucasArts SMUSH SANM video decoder
27 - LucasArts SMUSH VIMA audio decoder (ADPCM)
28 - LucasArts SMUSH demuxer
29 - MP2 encoding via TwoLAME
31 - Silicon Graphics RLE 8-bit video decoder
32 - Silicon Graphics Motion Video Compressor 1 & 2 decoder
33 - Silicon Graphics Movie demuxer
34 - On2 AVC (Audio for Video) decoder
35 - support for decoding through DXVA2 in avconv
36 - libbs2b-based stereo-to-binaural audio filter
38 - display matrix export and rotation API
39 - drop avserver, it was unmaintained for years and largely broken
41 - request Icecast metadata by default
42 - support for using metadata in stream specifiers in avtools
48 - support ID3v2 tags in ASF files
49 - reference-counting for AVFrame and AVPacket data
50 - avconv now fails when input options are used for output file
52 - avconv options -filter_script and -filter_complex_script, which allow a
53 filtergraph description to be read from a file
54 - uniform options syntax across all filters
57 - asetpts filter (same as setpts, but for audio)
58 - trim and atrim filters
59 - avconv -t and -ss (output-only) options are now sample-accurate when
61 - Matroska muxer can now put the index at the beginning of the file.
62 - avconv -deinterlace option removed, the yadif filter should be used instead
63 - Apple Intermediate Codec decoder
64 - Escape 130 video decoder
65 - support for slice multithreading in libavfilter
66 - VC-1 interlaced B-frame support
67 - support for WavPack muxing (raw and in Matroska)
69 - WavPack encoding through libwavpack
70 - Added the -n parameter to avconv
72 - when transcoding with avconv (i.e. not streamcopying), -ss is now accurate
73 even when used as an input option. Previous behavior can be restored with
74 the -noaccurate_seek option.
75 - avconv -t option can now be used for inputs, to limit the duration of
76 data read from an input file
77 - Voxware MetaSound decoder
79 - Error Resilient AAC syntax (ER AAC LC) decoding
80 - Low Delay AAC (ER AAC LD) decoding
81 - mux chapters in ASF files
82 - Opus in Ogg demuxing
83 - Enhanced Low Delay AAC (ER AAC ELD) decoding (no LD SBR support)
85 - HNM version 4 demuxer and video decoder
87 - raw HEVC, HEVC in MOV/MP4, HEVC in Matroska, HEVC in MPEG-TS demuxing
88 - remove avplay -vismv option, which has not worked for a long time
90 - setsar/setdar filters now support variables in ratio expressions
91 - dar variable in the scale filter now returns the actual DAR (i.e. a * sar)
93 - support for decoding through VDPAU in avconv (the -hwaccel option)
94 - remove mp3_header_(de)compress bitstream filters
95 - stereoscopic 3d metadata handling
96 - png standalone parser
97 - WebP encoding via libwebp
100 - Mirillis FIC video decoder
102 - compand audio filter
106 - av_basename and av_dirname
107 - adobe and limelight publisher authentication in RTMP
108 - VDPAU hardware acceleration through normal hwaccel
113 - ashowinfo audio filter
114 - 24-bit FLAC encoding
115 - audio volume filter
116 - deprecated the avconv -vol option. the volume filter is to be used instead.
117 - multi-channel ALAC encoding up to 7.1
118 - TAK demuxer, parser, and decoder
119 - adaptive frame-level multithreading for H.264
123 - metadata (INFO tag) support in WAV muxer
124 - support for building DLLs using MSVC
125 - remove avserver daemon mode
126 - support building on the Plan 9 operating system
127 - ffv1: support version 1.3
132 - XWD encoder and decoder
133 - Support for fragmentation in the mov/mp4 muxer
134 - ISMV (Smooth Streaming) muxer
135 - CDXL demuxer and decoder
136 - Apple ProRes encoder
137 - Sun Rasterfile Encoder
139 - ID3v2 attached pictures reading and writing
140 - WMA Lossless decoder
142 - RealAudio Lossless decoder
144 - drop support for avconv without libavfilter
145 - add libavresample audio conversion library
146 - audio filters support in libavfilter and avconv
150 - avprobe output is now standard INI or JSON. The old format can still
151 be used with -of old.
152 - Indeo Audio decoder
153 - channelsplit audio filter
154 - RTMPT protocol support
155 - iLBC encoding/decoding via libilbc
156 - Microsoft Screen 1 decoder
158 - audio channel mapping filter
159 - Microsoft ATC Screen decoder
161 - TechSmith Screen Codec 2 decoder
162 - AAC encoding via libfdk-aac
163 - Microsoft Expression Encoder Screen decoder
164 - RTMPS protocol support
165 - RTMPTS protocol support
166 - JPEG 2000 encoding support through OpenJPEG
167 - G.723.1 demuxer and decoder
168 - RTMPE protocol support
169 - RTMPTE protocol support
170 - Canopus Lossless Codec decoder
171 - avconv -shortest option is now per-output file,
172 -pass and -passlogfile are now per-output stream
174 - Microsoft Screen 2 decoder
175 - RTP depacketization of JPEG
176 - Smooth Streaming live segmenter muxer
177 - RTP packetization of JPEG
178 - Opus decoder and encoder using libopus
179 - remove -same_quant, it hasn't worked for years
180 - support for building with MSVC
191 - Automatic thread count based on detection number of (available) CPU cores
192 - Deprecate libpostproc. If desired, the switch --enable-postproc will
193 enable it but it may be removed in a later Libav release.
194 - rv34: frame-level multi-threading
195 - optimized iMDCT transform on x86 using SSE for for mpegaudiodec
201 - Flash Screen Video 2 decoder
202 - ffplay/ffprobe/ffserver renamed to avplay/avprobe/avserver
203 - ffmpeg deprecated, added avconv, which is almost the same for now, except
204 for a few incompatible changes in the options, which will hopefully make them
205 easier to use. The changes are:
206 * The options placement is now strictly enforced! While in theory the
207 options for ffmpeg should be given in [input options] -i INPUT [output
208 options] OUTPUT order, in practice it was possible to give output options
209 before the -i and it mostly worked. Except when it didn't - the behavior was
210 a bit inconsistent. In avconv, it is not possible to mix input and output
211 options. All non-global options are reset after an input or output filename.
212 * All per-file options are now truly per-file - they apply only to the next
213 input or output file and specifying different values for different files
214 will now work properly (notably -ss and -t options).
215 * All per-stream options are now truly per-stream - it is possible to
216 specify which stream(s) should a given option apply to. See the Stream
217 specifiers section in the avconv manual for details.
218 * In ffmpeg some options (like -newvideo/-newaudio/...) are irregular in the
219 sense that they're specified after the output filename instead of before,
220 like all other options. In avconv this irregularity is removed, all options
221 apply to the next input or output file.
222 * -newvideo/-newaudio/-newsubtitle options were removed. Not only were they
223 irregular and highly confusing, they were also redundant. In avconv the -map
224 option will create new streams in the output file and map input streams to
225 them. E.g. avconv -i INPUT -map 0 OUTPUT will create an output stream for
226 each stream in the first input file.
227 * The -map option now has slightly different and more powerful syntax:
228 + Colons (':') are used to separate file index/stream type/stream index
229 instead of dots. Comma (',') is used to separate the sync stream instead
230 of colon.. This is done for consistency with other options.
231 + It's possible to specify stream type. E.g. -map 0:a:2 creates an
232 output stream from the third input audio stream.
233 + Omitting the stream index now maps all the streams of the given type,
234 not just the first. E.g. -map 0:s creates output streams for all the
235 subtitle streams in the first input file.
236 + Since -map can now match multiple streams, negative mappings were
237 introduced. Negative mappings disable some streams from an already
238 defined map. E.g. '-map 0 -map -0:a:1' means 'create output streams for
239 all the stream in the first input file, except for the second audio
241 * There is a new option -c (or -codec) for choosing the decoder/encoder to
242 use, which allows to precisely specify target stream(s) consistently with
243 other options. E.g. -c:v lib264 sets the codec for all video streams, -c:a:0
244 libvorbis sets the codec for the first audio stream and -c copy copies all
245 the streams without reencoding. Old -vcodec/-acodec/-scodec options are now
247 * It is now possible to precisely specify which stream should an AVOption
248 apply to. E.g. -b:v:0 2M sets the bitrate for the first video stream, while
249 -b:a 128k sets the bitrate for all audio streams. Note that the old -ab 128k
250 syntax is deprecated and will stop working soon.
251 * -map_chapters now takes only an input file index and applies to the next
252 output file. This is consistent with how all the other options work.
253 * -map_metadata now takes only an input metadata specifier and applies to
254 the next output file. Output metadata specifier is now part of the option
255 name, similarly to the AVOptions/map/codec feature above.
256 * -metadata can now be used to set metadata on streams and chapters, e.g.
257 -metadata:s:1 language=eng sets the language of the first stream to 'eng'.
258 This made -vlang/-alang/-slang options redundant, so they were removed.
259 * -qscale option now uses stream specifiers and applies to all streams, not
260 just video. I.e. plain -qscale number would now apply to all streams. To get
261 the old behavior, use -qscale:v. Also there is now a shortcut -q for -qscale
262 and -aq is now an alias for -q:a.
263 * -vbsf/-absf/-sbsf options were removed and replaced by a -bsf option which
264 uses stream specifiers. Use -bsf:v/a/s instead of the old options.
265 * -itsscale option now uses stream specifiers, so its argument is only the
267 * -intra option was removed, use -g 0 for the same effect.
268 * -psnr option was removed, use -flags +psnr for the same effect.
269 * -vf option is now an alias to the new -filter option, which uses stream specifiers.
270 * -vframes/-aframes/-dframes options are now aliases to the new -frames option.
271 * -vtag/-atag/-stag options are now aliases to the new -tag option.
273 - Windows Media Image decoder
277 - libcdio-paranoia input device for audio CD grabbing
279 - Apple ProRes decoder
280 - CELT in Ogg demuxing
281 - VC-1 interlaced decoding
282 - lut, lutrgb, and lutyuv filters
285 - Speex encoding via libspeex
286 - 4:2:2 H.264 decoding support
287 - 4:2:2 and 4:4:4 H.264 encoding with libx264
288 - Pulseaudio input device
289 - replacement Indeo 3 decoder
290 - TLS/SSL and HTTPS protocol support
291 - AVOptions API rewritten and documented
292 - most of CODEC_FLAG2_*, some CODEC_FLAG_* and many codec-specific fields in
293 AVCodecContext deprecated. Codec private options should be used instead.
294 - Properly working defaults in libx264 wrapper, support for native presets.
295 - Encrypted OMA files support
296 - Discworld II BMV decoding support
298 - OS X Video Decoder Acceleration (VDA) support
299 - CRI ADX audio format muxer and demuxer
300 - Playstation Portable PMP format demuxer
301 - PCM format support in OMA demuxer
303 - Dxtory capture format decoder
304 - v410 QuickTime uncompressed 4:4:4 10-bit encoder and decoder
306 - Simple segmenting muxer
313 - E-AC-3 audio encoder
314 - ac3enc: add channel coupling support
315 - floating-point sample format support for (E-)AC-3, DCA, AAC, Vorbis decoders
316 - H.264/MPEG frame-level multithreading
317 - av_metadata_* functions renamed to av_dict_* and moved to libavutil
318 - 4:4:4 H.264 decoding support
319 - 10-bit H.264 optimizations for x86
320 - bump libswscale for recently reported ABI break
325 - VP8 frame-level multithreading
326 - NEON optimizations for VP8
327 - removed a lot of deprecated API cruft
328 - FFT and IMDCT optimizations for AVX (Sandy Bridge) processors
330 - SMPTE 302M AES3 audio decoder
331 - ffmpeg no longer quits after the 'q' key is pressed; use 'ctrl+c' instead
332 - 9bit and 10bit per sample support in the H.264 decoder
337 - WebM support in Matroska de/muxer
338 - low overhead Ogg muxing
340 - VP8 de/encoding via libvpx
341 - Demuxer for On2's IVF format
342 - Pictor/PC Paint decoder
344 - libfaad2 wrapper removed
345 - DTS-ES extension (XCh) decoding support
347 - RTSP tunneling over HTTP
348 - RTP depacketization of SVQ3
349 - -strict inofficial replaced by -strict unofficial
350 - ffplay -exitonkeydown and -exitonmousedown options added
351 - native GSM / GSM MS decoder
352 - RTP depacketization of QDM2
353 - ANSI/ASCII art playback system
354 - Lego Mindstorms RSO de/muxer
355 - SubRip subtitle file muxer and demuxer
356 - Chinese AVS encoding via libxavs
357 - ffprobe -show_packets option added
358 - RTP packetization of Theora and Vorbis
359 - RTP depacketization of MP4A-LATM
360 - RTP packetization and depacketization of VP8
362 - Apple HTTP Live Streaming demuxer
365 - G.722 ADPCM audio encoder/decoder
368 - frei0r wrapper filter
369 - change crop filter syntax to width:height:x:y
370 - make the crop filter accept parametric expressions
371 - make ffprobe accept AVFormatContext options
374 - Demuxer for Leitch/Harris' VR native stream format (LXF)
375 - RTP depacketization of the X-QT QuickTime format
376 - SAP (Session Announcement Protocol, RFC 2974) muxer and demuxer
378 - ffmpeg -crop* options removed
379 - transpose filter added
380 - ffmpeg -force_key_frames option added
381 - demuxer for receiving raw rtp:// URLs without an SDP description
382 - single stream LATM/LOAS decoder
383 - setpts filter added
384 - Win64 support for optimized x86 assembly functions
385 - MJPEG/AVI1 to JPEG/JFIF bitstream filter
386 - ASS subtitle encoder and decoder
387 - IEC 61937 encapsulation for E-AC-3, TrueHD, DTS-HD (for HDMI passthrough)
388 - overlay filter added
389 - rename aspect filter to setdar, and pixelaspect to setsar
391 - Mobotix .mxg demuxer
392 - frei0r source added
393 - hqdn3d filter added
394 - RTP depacketization of QCELP
396 - gradfun filter added
398 - replace the ocv_smooth filter with a more generic ocv filter
399 - Windows Televison (WTV) demuxer
400 - FFmpeg metadata format muxer and demuxer
401 - SubRip (srt) subtitle decoder
402 - floating-point AC-3 encoder added
404 - ffmpeg -copytb option added
406 - Wing Commander IV movies decoder added
408 - Bink version 'b' audio and video decoder
409 - Bitmap Brothers JV playback system
410 - Apple HTTP Live Streaming protocol handler
411 - sndio support for playback and record
412 - Linux framebuffer input device added
413 - Chronomaster DFA decoder
414 - Mobotix MxPEG decoder
415 - AAC encoding via libvo-aacenc
416 - AMR-WB encoding via libvo-amrwbenc
418 - fieldorder video filter added
423 - PB-frame decoding for H.263
424 - deprecated vhook subsystem removed
425 - deprecated old scaler removed
427 - Alpha channel scaler
429 - RTP packetization of H.263
430 - RTP packetization of AMR
431 - RTP depacketization of Vorbis
432 - CorePNG decoding support
433 - Cook multichannel decoding support
434 - introduced avlanguage helpers in libavformat
435 - 8088flex TMV demuxer and decoder
436 - per-stream language-tags extraction in asfdec
437 - V210 decoder and encoder
438 - remaining GPL parts in AC-3 decoder converted to LGPL
440 - SoX native format muxer and demuxer
441 - AMR-NB decoding/encoding, AMR-WB decoding via OpenCORE libraries
443 - Electronic Arts Madcow decoder
444 - DivX (XSUB) subtitle encoder
445 - nonfree libamr support for AMR-NB/WB decoding/encoding removed
446 - experimental AAC encoder
447 - RTP depacketization of ASF and RTSP from WMS servers
448 - RTMP support in libavformat
449 - noX handling for OPT_BOOL X options
451 - IEC-61937 compatible Muxer
453 - Bluray (PGS) subtitle decoder
454 - LPCM support in MPEG-TS (HDMV RID as found on Blu-ray disks)
456 - Core Audio Format demuxer
458 - MD STUDIO audio demuxer
459 - RF64 support in WAV demuxer
460 - MPEG-4 Audio Lossless Coding (ALS) decoder
461 - -formats option split into -formats, -codecs, -bsfs, and -protocols
463 - CDG demuxer and decoder
465 - Auravision Aura 1 and 2 decoders
466 - Deluxe Paint Animation playback system
468 - Adobe Filmstrip muxer and demuxer
469 - RTP depacketization of H.263
470 - Bink demuxer and audio/video decoders
471 - enable symbol versioning by default for linkers that support it
472 - IFF PBM/ILBM bitmap decoder
475 - RTP depacketization of AMR
481 - Kega Game Video (KGV1) decoder
482 - VorbisComment writing for FLAC, Ogg FLAC and Ogg Speex files
483 - RTP depacketization of Theora
484 - HTTP Digest authentication
485 - RTMP/RTMPT/RTMPS/RTMPE/RTMPTE protocol support via librtmp
486 - Psygnosis YOP demuxer and video decoder
487 - spectral extension support in the E-AC-3 decoder
488 - unsharp video filter
489 - RTP hinting in the mov/3gp/mp4 muxer
490 - Dirac in Ogg demuxing
491 - seek to keyframes in Ogg
492 - 4:2:2 and 4:4:4 Theora decoding
493 - 35% faster VP3/Theora decoding
494 - faster AAC decoding
495 - faster H.264 decoding
496 - RealAudio 1.0 (14.4K) encoder
501 - DV50 AKA DVCPRO50 encoder, decoder, muxer and demuxer
502 - TechSmith Camtasia (TSCC) video decoder
503 - IBM Ultimotion (ULTI) video decoder
504 - Sierra Online audio file demuxer and decoder
505 - Apple QuickDraw (qdrw) video decoder
506 - Creative ADPCM audio decoder (16 bits as well as 8 bits schemes)
507 - Electronic Arts Multimedia (WVE/UV2/etc.) file demuxer
508 - Miro VideoXL (VIXL) video decoder
509 - H.261 video encoder
511 - Nullsoft Video (NSV) file demuxer
512 - Shorten audio decoder
514 - Apple Lossless Audio Codec (ALAC) decoder
515 - Winnov WNV1 video decoder
516 - Autodesk Animator Studio Codec (AASC) decoder
517 - Indeo 2 video decoder
518 - Fraps FPS1 video decoder
519 - Snow video encoder/decoder
520 - Sonic audio encoder/decoder
521 - Vorbis audio decoder
522 - Macromedia ADPCM decoder
523 - Duck TrueMotion 2 video decoder
524 - support for decoding FLX and DTA extensions in FLIC files
525 - H.264 custom quantization matrices support
526 - ffserver fixed, it should now be usable again
528 - Real Cooker audio decoder
529 - TrueSpeech audio decoder
530 - WMA2 audio decoder fixed, now all files should play correctly
531 - RealAudio 14.4 and 28.8 decoders fixed
533 - build system improvements
534 - tabs and trailing whitespace removed from the codebase
535 - CamStudio video decoder
536 - AIFF/AIFF-C audio format, encoding and decoding
537 - ADTS AAC file reading and writing
538 - Creative VOC file reading and writing
539 - American Laser Games multimedia (*.mm) playback system
540 - Zip Motion Blocks Video decoder
541 - improved Theora/VP3 decoder
542 - True Audio (TTA) decoder
543 - AVS demuxer and video decoder
545 - Smacker demuxer and decoder
546 - NuppelVideo/MythTV demuxer and RTjpeg decoder
548 - MPEG-2 intra VLC support
549 - MPEG-2 4:2:2 encoder
550 - Flash Screen Video decoder
552 - Chinese AVS decoder
555 - VC-1/WMV3/WMV9 video decoder
558 - VMware video decoder
561 - WavPack lossless audio decoder
562 - Targa (.TGA) picture decoder
563 - Vorbis audio encoder
564 - Delphine Software .cin demuxer/audio and video decoder
565 - Tiertex .seq demuxer/video decoder
567 - TIFF picture encoder and decoder
568 - GIF picture decoder
569 - Intel Music Coder decoder
570 - Zip Motion Blocks Video encoder
572 - Flash Screen Video encoder
573 - Theora encoding via libtheora
576 - GSM-MS encoder and decoder
578 - DXA demuxer and decoder
580 - Gamecube movie (.THP) playback system
581 - Blackfin optimizations
582 - Interplay C93 demuxer and video decoder
583 - Bethsoft VID demuxer and video decoder
586 - V.Flash PTX decoder
587 - RoQ muxer, RoQ audio encoder
588 - Renderware TXD demuxer and decoder
589 - extern C declarations for C++ removed from headers
590 - sws_flags command line option
594 - OS/2 support removed and restored again
597 - additional SPARC (VIS) optimizations
599 - slice-based parallel H.264 decoding
600 - Monkey's Audio demuxer and decoder
601 - AMV audio and video decoder
603 - H.264 PAFF decoding
604 - Nellymoser ASAO decoder
605 - Beam Software SIFF demuxer and decoder
606 - libvorbis Vorbis decoding removed in favor of native decoder
607 - IntraX8 (J-Frame) subdecoder for WMV2 and VC-1
608 - Ogg (Theora, Vorbis and FLAC) muxer
609 - The "device" muxers and demuxers are now in a new libavdevice library
610 - PC Paintbrush PCX decoder
611 - Sun Rasterfile decoder
612 - TechnoTrend PVA demuxer
613 - Linux Media Labs MPEG-4 (LMLM4) demuxer
614 - AVM2 (Flash 9) SWF muxer
615 - QT variant of IMA ADPCM encoder
617 - iPod/iPhone compatible mp4 muxer
619 - MSN TCP Webcam stream demuxer
620 - RL2 demuxer / decoder
623 - non-recursive Makefiles
625 - MAXIS EA XA (.xa) demuxer / decoder
629 - Electronic Arts CMV decoder
630 - Motion Pixels Video decoder
631 - Motion Pixels MVI demuxer
632 - removed animated GIF decoder/demuxer
633 - D-Cinema audio muxer
634 - Electronic Arts TGV decoder
635 - Apple Lossless Audio Codec (ALAC) encoder
637 - floating point PCM encoder/decoder
639 - DV100 AKA DVCPRO HD decoder and demuxer
640 - E-AC-3 support added to AC-3 decoder
641 - Nellymoser ASAO encoder
642 - ASS and SSA demuxer and muxer
643 - liba52 wrapper removed
644 - SVQ3 watermark decoding support
645 - Speex decoding via libspeex
646 - Electronic Arts TGQ decoder
648 - QCELP / PureVoice decoder
650 - hybrid WavPack support
651 - R3D REDCODE demuxer
652 - ALSA support for playback and record
653 - Electronic Arts TQI decoder
654 - OpenJPEG based JPEG 2000 decoder
655 - NC (NC4600) camera file demuxer
656 - Gopher client support
658 - generic metadata API
663 - DV encoder, DV muxer
664 - Microsoft RLE video decoder
665 - Microsoft Video-1 decoder
666 - Apple Animation (RLE) decoder
667 - Apple Graphics (SMC) decoder
668 - Apple Video (RPZA) decoder
670 - Sega FILM (CPK) file demuxer
671 - Westwood multimedia support (VQA & AUD files)
672 - Id Quake II CIN playback support
674 - FLIC playback support
675 - RealVideo 2.0 (RV20) decoder
676 - Duck TrueMotion v1 (DUCK) video decoder
677 - Sierra VMD demuxer and video decoder
678 - MSZH and ZLIB decoder support
682 - rate distortion optimal cbp support
683 - rate distorted optimal ac prediction for MPEG-4
684 - rate distorted optimal lambda->qp support
685 - AAC encoding with libfaac
686 - Sunplus JPEG codec (SP5X) support
687 - use Lagrange multipler instead of QP for ratecontrol
688 - Theora/VP3 decoding support
689 - XA and ADX ADPCM codecs
690 - export MPEG-2 active display area / pan scan
691 - Add support for configuring with IBM XLC
692 - floating point AAN DCT
693 - initial support for zygo video (not complete)
695 - new audio/video parser API
697 - av_read_frame() and av_seek_frame() support
698 - missing last frame fixes
699 - seek by mouse in ffplay
700 - noise reduction of DCT coefficients
701 - H.263 OBMC & 4MV support
702 - H.263 alternative inter vlc support
704 - H.263 slice structured mode
705 - interlaced DCT support for MPEG-2 encoding
706 - stuffing to stay above min_bitrate
707 - MB type & QP visualization
708 - frame stepping for ffplay
709 - interlaced motion estimation
710 - alternate scantable support
711 - SVCD scan offset support
714 - quantizer noise shaping
715 - G.726 ADPCM audio codec
717 - multithreaded/SMP motion estimation
718 - multithreaded/SMP encoding for MPEG-1/MPEG-2/MPEG-4/H.263
719 - multithreaded/SMP decoding for MPEG-2
721 - Metrowerks CodeWarrior suppport
722 - H.263+ custom pcf support
723 - nicer output for 'ffmpeg -formats'
725 - SGI image format, encoding and decoding
726 - H.264 loop filter support
727 - H.264 CABAC support
728 - nicer looking arrows for the motion vector visualization
729 - improved VCD support
730 - audio timestamp drift compensation
731 - MPEG-2 YUV 422/444 support
732 - polyphase kaiser windowed sinc and blackman nuttall windowed sinc audio resample
733 - better image scaling
735 - correctly interleave packets during encoding
736 - VIS optimized motion compensation
737 - intra_dc_precision>0 encoding support
738 - support reuse of motion vectors/MB types/field select values of the source video
739 - more accurate deblock filter
741 - many optimizations and bugfixes
742 - FunCom ISS audio file demuxer and according ADPCM decoding
747 - MPEG-2 video encoding (Michael)
748 - Id RoQ playback subsystem (Mike Melanson and Tim Ferguson)
749 - Wing Commander III Movie (.mve) file playback subsystem (Mike Melanson
751 - Xan DPCM audio decoder (Mario Brito)
752 - Interplay MVE playback subsystem (Mike Melanson)
753 - Duck DK3 and DK4 ADPCM audio decoders (Mike Melanson)
758 - RealAudio 1.0 (14_4) and 2.0 (28_8) native decoders. Author unknown, code from mplayerhq
759 (originally from public domain player for Amiga at http://www.honeypot.net/audio)
760 - current version now also compiles with older GCC (Fabrice)
761 - 4X multimedia playback system including 4xm file demuxer (Mike
762 Melanson), and 4X video and audio codecs (Michael)
763 - Creative YUV (CYUV) decoder (Mike Melanson)
764 - FFV1 codec (our very simple lossless intra only codec, compresses much better
765 than HuffYUV) (Michael)
766 - ASV1 (Asus), H.264, Intel indeo3 codecs have been added (various)
767 - tiny PNG encoder and decoder, tiny GIF decoder, PAM decoder (PPM with
768 alpha support), JPEG YUV colorspace support. (Fabrice Bellard)
769 - ffplay has been replaced with a newer version which uses SDL (optionally)
770 for multiplatform support (Fabrice)
771 - Sorenson Version 3 codec (SVQ3) support has been added (decoding only) - donated
773 - AMR format has been added (Johannes Carlsson)
774 - 3GP support has been added (Johannes Carlsson)
775 - VP3 codec has been added (Mike Melanson)
776 - more MPEG-1/2 fixes
777 - better multiplatform support, MS Visual Studio fixes (various)
778 - AltiVec optimizations (Magnus Damn and others)
779 - SH4 processor support has been added (BERO)
780 - new public interfaces (avcodec_get_pix_fmt) (Roman Shaposhnick)
781 - VOB streaming support (Brian Foley)
782 - better MP3 autodetection (Andriy Rysin)
783 - qpel encoding (Michael)
784 - 4mv+b frames encoding finally fixed (Michael)
785 - chroma ME (Michael)
786 - 5 comparison functions for ME (Michael)
787 - B-frame encoding speedup (Michael)
788 - WMV2 codec (unfinished - Michael)
789 - user specified diamond size for EPZS (Michael)
790 - Playstation STR playback subsystem, still experimental (Mike and Michael)
791 - ASV2 codec (Michael)
792 - CLJR decoder (Alex)
794 .. And lots more new enhancements and fixes.
799 - completely new integer only MPEG audio layer 1/2/3 decoder rewritten
801 - Recoded DCT and motion vector search with gcc (no longer depends on nasm)
802 - fix quantization bug in AC3 encoder
803 - added PCM codecs and format. Corrected WAV/AVI/ASF PCM issues
804 - added prototype ffplay program
805 - added GOB header parsing on H.263/H.263+ decoder (Juanjo)
806 - bug fix on MCBPC tables of H.263 (Juanjo)
807 - bug fix on DC coefficients of H.263 (Juanjo)
808 - added Advanced Prediction Mode on H.263/H.263+ decoder (Juanjo)
809 - now we can decode H.263 streams found in QuickTime files (Juanjo)
810 - now we can decode H.263 streams found in VIVO v1 files(Juanjo)
811 - preliminary RTP "friendly" mode for H.263/H.263+ coding. (Juanjo)
812 - added GOB header for H.263/H.263+ coding on RTP mode (Juanjo)
813 - now H.263 picture size is returned on the first decoded frame (Juanjo)
814 - added first regression tests
815 - added MPEG-2 TS demuxer
816 - new demux API for libav
817 - more accurate and faster IDCT (Michael)
818 - faster and entropy-controlled motion search (Michael)
819 - two pass video encoding (Michael)
820 - new video rate control (Michael)
821 - added MSMPEG4V1, MSMPEGV2 and WMV1 support (Michael)
822 - great performance improvement of video encoders and decoders (Michael)
823 - new and faster bit readers and vlc parsers (Michael)
824 - high quality encoding mode: tries all macroblock/VLC types (Michael)
825 - added DV video decoder
826 - preliminary RTP/RTSP support in ffserver and libavformat
827 - H.263+ AIC decoding/encoding support (Juanjo)
828 - VCD MPEG-PS mode (Juanjo)
829 - PSNR stuff (Juanjo)
830 - simple stats output (Juanjo)
831 - 16-bit and 15-bit RGB/BGR/GBR support (Bisqwit)
836 - some header fixes (Zdenek Kabelac <kabi at informatics.muni.cz>)
837 - many MMX optimizations (Nick Kurshev <nickols_k at mail.ru>)
838 - added configure system (actually a small shell script)
839 - added MPEG audio layer 1/2/3 decoding using LGPL'ed mpglib by
840 Michael Hipp (temporary solution - waiting for integer only
842 - fixed VIDIOCSYNC interrupt
843 - added Intel H.263 decoding support ('I263' AVI fourCC)
844 - added Real Video 1.0 decoding (needs further testing)
845 - simplified image formats again. Added PGM format (=grey
846 pgm). Renamed old PGM to PGMYUV.
847 - fixed msmpeg4 slice issues (tell me if you still find problems)
848 - fixed OpenDivX bugs with newer versions (added VOL header decoding)
849 - added support for MPlayer interface
850 - added macroblock skip optimization
851 - added MJPEG decoder
852 - added mmx/mmxext IDCT from libmpeg2
853 - added pgmyuvpipe, ppm, and ppm_pipe formats (original patch by Celer
854 <celer at shell.scrypt.net>)
855 - added pixel format conversion layer (e.g. for MJPEG or PPM)
856 - added deinterlacing option
858 - MPEG-4 vol header fixes (Jonathan Marsden <snmjbm at pacbell.net>)
859 - ARM optimizations (Lionel Ulmer <lionel.ulmer at free.fr>).
860 - Windows porting of file converter
861 - added MJPEG raw format (input/ouput)
862 - added JPEG image format support (input/output)
867 - fixed some std header definitions (Bjorn Lindgren
868 <bjorn.e.lindgren at telia.com>).
869 - added MPEG demuxer (MPEG-1 and 2 compatible).
871 - added prototype RM demuxer
872 - added AC3 decoding (done with libac3 by Aaron Holtzman)
873 - added decoding codec parameter guessing (.e.g. for MPEG, because the
874 header does not include them)
875 - fixed header generation in MPEG-1, AVI and ASF muxer: wmplayer can now
876 play them (only tested video)
877 - fixed H.263 white bug
878 - fixed phase rounding in img resample filter
879 - add MMX code for polyphase img resample filter
880 - added CPU autodetection
881 - added generic title/author/copyright/comment string handling (ASF and RM
883 - added SWF demux to extract MP3 track (not usable yet because no MP3
885 - added fractional frame rate support
886 - codecs are no longer searched by read_header() (should fix ffserver
892 - BGR24 patch (initial patch by Jeroen Vreeken <pe1rxq at amsat.org>)
893 - fixed raw yuv output
894 - added motion rounding support in MPEG-4
895 - fixed motion bug rounding in MSMPEG4
896 - added B-frame handling in video core
897 - added full MPEG-1 decoding support
898 - added partial (frame only) MPEG-2 support
899 - changed the FOURCC code for H.263 to "U263" to be able to see the
900 +AVI/H.263 file with the UB Video H.263+ decoder. MPlayer works with
901 this +codec ;) (JuanJo).
902 - Halfpel motion estimation after MB type selection (JuanJo)
903 - added pgm and .Y.U.V output format
904 - suppressed 'img:' protocol. Simply use: /tmp/test%d.[pgm|Y] as input or
906 - added pgmpipe I/O format (original patch from Martin Aumueller
907 <lists at reserv.at>, but changed completely since we use a format
908 instead of a protocol)
913 - added H.263/MPEG-4/MSMPEG4 decoding support. MPEG-4 decoding support
914 (for OpenDivX) is almost complete: 8x8 MVs and rounding are
915 missing. MSMPEG4 support is complete.
916 - added prototype MPEG-1 decoder. Only I- and P-frames handled yet (it
917 can decode ffmpeg MPEGs :-)).
918 - added libavcodec API documentation (see apiexample.c).
919 - fixed image polyphase bug (the bottom of some images could be
921 - added support for non clipped motion vectors (decoding only)
922 and image sizes non-multiple of 16
923 - added support for AC prediction (decoding only)
924 - added file overwrite confirmation (can be disabled with -y)
925 - added custom size picture to H.263 using H.263+ (Juanjo)
930 - added MSMPEG4 (aka DivX) compatible encoder. Changed default codec
931 of AVI and ASF to DIV3.
932 - added -me option to set motion estimation method
933 (default=log). suppressed redundant -hq option.
934 - added options -acodec and -vcodec to force a given codec (useful for
937 - improved dct_quantize speed
938 - factorized some motion estimation code
943 - removing grab code from ffserver and moved it to ffmpeg. Added
944 multistream support to ffmpeg.
945 - added timeshifting support for live feeds (option ?date=xxx in the
947 - added high quality image resize code with polyphase filter (need
948 mmx/see optimization). Enable multiple image size support in ffserver.
949 - added multi live feed support in ffserver
950 - suppressed master feature from ffserver (it should be done with an
951 external program which opens the .ffm url and writes it to another
953 - added preliminary support for video stream parsing (WAV and AVI half
954 done). Added proper support for audio/video file conversion in
956 - added preliminary support for video file sending from ffserver
957 - redesigning I/O subsystem: now using URL based input and output
959 - added WAV format support
960 - added "tty user interface" to ffmpeg to stop grabbing gracefully
961 - added MMX/SSE optimizations to SAD (Sums of Absolutes Differences)
962 (Juan J. Sierralta P. a.k.a. "Juanjo" <juanjo at atmlab.utfsm.cl>)
963 - added MMX DCT from mpeg2_movie 1.5 (Juanjo)
964 - added new motion estimation algorithms, log and phods (Juanjo)
965 - changed directories: libav for format handling, libavcodec for
971 - added stereo in MPEG audio encoder
976 - added 'high quality' mode which use motion vectors. It can be used in
977 real time at low resolution.
978 - fixed rounding problems which caused quality problems at high
979 bitrates and large GOP size
982 version 0.3.2: small fixes
988 version 0.3.1: added avi/divx support
991 - added MPEG-4 codec compatible with OpenDivX. It is based on the H.263 codec
992 - added sound for flash format (not tested)
995 version 0.3: initial public release