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
13 - shuffleplanes filter
14 - replaygain data export
15 - Alias PIX image encoder and decoder
16 - BRender PIX image decoder
17 - Amazing Studio PAF playback support
19 - BMP standalone parser
20 - OpenEXR image decoder
21 - support encoding and decoding 4-channel SGI images
22 - support decoding 16-bit RLE SGI images
24 - LucasArts SMUSH SANM video decoder
25 - LucasArts SMUSH VIMA audio decoder (ADPCM)
26 - LucasArts SMUSH demuxer
27 - MP2 encoding via TwoLAME
29 - Silicon Graphics RLE 8-bit video decoder
30 - Silicon Graphics Motion Video Compressor 1 & 2 decoder
31 - Silicon Graphics Movie demuxer
32 - On2 AVC (Audio for Video) decoder
33 - support for decoding through DXVA2 in avconv
34 - libbs2b-based stereo-to-binaural audio filter
36 - display matrix export and rotation API
37 - drop avserver, it was unmaintained for years and largely broken
39 - request Icecast metadata by default
40 - support for using metadata in stream specifiers in avtools
46 - support ID3v2 tags in ASF files
47 - reference-counting for AVFrame and AVPacket data
48 - avconv now fails when input options are used for output file
50 - avconv options -filter_script and -filter_complex_script, which allow a
51 filtergraph description to be read from a file
52 - uniform options syntax across all filters
55 - asetpts filter (same as setpts, but for audio)
56 - trim and atrim filters
57 - avconv -t and -ss (output-only) options are now sample-accurate when
59 - Matroska muxer can now put the index at the beginning of the file.
60 - avconv -deinterlace option removed, the yadif filter should be used instead
61 - Apple Intermediate Codec decoder
62 - Escape 130 video decoder
63 - support for slice multithreading in libavfilter
64 - VC-1 interlaced B-frame support
65 - support for WavPack muxing (raw and in Matroska)
67 - WavPack encoding through libwavpack
68 - Added the -n parameter to avconv
70 - when transcoding with avconv (i.e. not streamcopying), -ss is now accurate
71 even when used as an input option. Previous behavior can be restored with
72 the -noaccurate_seek option.
73 - avconv -t option can now be used for inputs, to limit the duration of
74 data read from an input file
75 - Voxware MetaSound decoder
77 - Error Resilient AAC syntax (ER AAC LC) decoding
78 - Low Delay AAC (ER AAC LD) decoding
79 - mux chapters in ASF files
80 - Opus in Ogg demuxing
81 - Enhanced Low Delay AAC (ER AAC ELD) decoding (no LD SBR support)
83 - HNM version 4 demuxer and video decoder
85 - raw HEVC, HEVC in MOV/MP4, HEVC in Matroska, HEVC in MPEG-TS demuxing
86 - remove avplay -vismv option, which has not worked for a long time
88 - setsar/setdar filters now support variables in ratio expressions
89 - dar variable in the scale filter now returns the actual DAR (i.e. a * sar)
91 - support for decoding through VDPAU in avconv (the -hwaccel option)
92 - remove mp3_header_(de)compress bitstream filters
93 - stereoscopic 3d metadata handling
94 - png standalone parser
95 - WebP encoding via libwebp
98 - Mirillis FIC video decoder
100 - compand audio filter
104 - av_basename and av_dirname
105 - adobe and limelight publisher authentication in RTMP
106 - VDPAU hardware acceleration through normal hwaccel
111 - ashowinfo audio filter
112 - 24-bit FLAC encoding
113 - audio volume filter
114 - deprecated the avconv -vol option. the volume filter is to be used instead.
115 - multi-channel ALAC encoding up to 7.1
116 - TAK demuxer, parser, and decoder
117 - adaptive frame-level multithreading for H.264
121 - metadata (INFO tag) support in WAV muxer
122 - support for building DLLs using MSVC
123 - remove avserver daemon mode
124 - support building on the Plan 9 operating system
125 - ffv1: support version 1.3
130 - XWD encoder and decoder
131 - Support for fragmentation in the mov/mp4 muxer
132 - ISMV (Smooth Streaming) muxer
133 - CDXL demuxer and decoder
134 - Apple ProRes encoder
135 - Sun Rasterfile Encoder
137 - ID3v2 attached pictures reading and writing
138 - WMA Lossless decoder
140 - RealAudio Lossless decoder
142 - drop support for avconv without libavfilter
143 - add libavresample audio conversion library
144 - audio filters support in libavfilter and avconv
148 - avprobe output is now standard INI or JSON. The old format can still
149 be used with -of old.
150 - Indeo Audio decoder
151 - channelsplit audio filter
152 - RTMPT protocol support
153 - iLBC encoding/decoding via libilbc
154 - Microsoft Screen 1 decoder
156 - audio channel mapping filter
157 - Microsoft ATC Screen decoder
159 - TechSmith Screen Codec 2 decoder
160 - AAC encoding via libfdk-aac
161 - Microsoft Expression Encoder Screen decoder
162 - RTMPS protocol support
163 - RTMPTS protocol support
164 - JPEG 2000 encoding support through OpenJPEG
165 - G.723.1 demuxer and decoder
166 - RTMPE protocol support
167 - RTMPTE protocol support
168 - Canopus Lossless Codec decoder
169 - avconv -shortest option is now per-output file,
170 -pass and -passlogfile are now per-output stream
172 - Microsoft Screen 2 decoder
173 - RTP depacketization of JPEG
174 - Smooth Streaming live segmenter muxer
175 - RTP packetization of JPEG
176 - Opus decoder and encoder using libopus
177 - remove -same_quant, it hasn't worked for years
178 - support for building with MSVC
189 - Automatic thread count based on detection number of (available) CPU cores
190 - Deprecate libpostproc. If desired, the switch --enable-postproc will
191 enable it but it may be removed in a later Libav release.
192 - rv34: frame-level multi-threading
193 - optimized iMDCT transform on x86 using SSE for for mpegaudiodec
199 - Flash Screen Video 2 decoder
200 - ffplay/ffprobe/ffserver renamed to avplay/avprobe/avserver
201 - ffmpeg deprecated, added avconv, which is almost the same for now, except
202 for a few incompatible changes in the options, which will hopefully make them
203 easier to use. The changes are:
204 * The options placement is now strictly enforced! While in theory the
205 options for ffmpeg should be given in [input options] -i INPUT [output
206 options] OUTPUT order, in practice it was possible to give output options
207 before the -i and it mostly worked. Except when it didn't - the behavior was
208 a bit inconsistent. In avconv, it is not possible to mix input and output
209 options. All non-global options are reset after an input or output filename.
210 * All per-file options are now truly per-file - they apply only to the next
211 input or output file and specifying different values for different files
212 will now work properly (notably -ss and -t options).
213 * All per-stream options are now truly per-stream - it is possible to
214 specify which stream(s) should a given option apply to. See the Stream
215 specifiers section in the avconv manual for details.
216 * In ffmpeg some options (like -newvideo/-newaudio/...) are irregular in the
217 sense that they're specified after the output filename instead of before,
218 like all other options. In avconv this irregularity is removed, all options
219 apply to the next input or output file.
220 * -newvideo/-newaudio/-newsubtitle options were removed. Not only were they
221 irregular and highly confusing, they were also redundant. In avconv the -map
222 option will create new streams in the output file and map input streams to
223 them. E.g. avconv -i INPUT -map 0 OUTPUT will create an output stream for
224 each stream in the first input file.
225 * The -map option now has slightly different and more powerful syntax:
226 + Colons (':') are used to separate file index/stream type/stream index
227 instead of dots. Comma (',') is used to separate the sync stream instead
228 of colon.. This is done for consistency with other options.
229 + It's possible to specify stream type. E.g. -map 0:a:2 creates an
230 output stream from the third input audio stream.
231 + Omitting the stream index now maps all the streams of the given type,
232 not just the first. E.g. -map 0:s creates output streams for all the
233 subtitle streams in the first input file.
234 + Since -map can now match multiple streams, negative mappings were
235 introduced. Negative mappings disable some streams from an already
236 defined map. E.g. '-map 0 -map -0:a:1' means 'create output streams for
237 all the stream in the first input file, except for the second audio
239 * There is a new option -c (or -codec) for choosing the decoder/encoder to
240 use, which allows to precisely specify target stream(s) consistently with
241 other options. E.g. -c:v lib264 sets the codec for all video streams, -c:a:0
242 libvorbis sets the codec for the first audio stream and -c copy copies all
243 the streams without reencoding. Old -vcodec/-acodec/-scodec options are now
245 * It is now possible to precisely specify which stream should an AVOption
246 apply to. E.g. -b:v:0 2M sets the bitrate for the first video stream, while
247 -b:a 128k sets the bitrate for all audio streams. Note that the old -ab 128k
248 syntax is deprecated and will stop working soon.
249 * -map_chapters now takes only an input file index and applies to the next
250 output file. This is consistent with how all the other options work.
251 * -map_metadata now takes only an input metadata specifier and applies to
252 the next output file. Output metadata specifier is now part of the option
253 name, similarly to the AVOptions/map/codec feature above.
254 * -metadata can now be used to set metadata on streams and chapters, e.g.
255 -metadata:s:1 language=eng sets the language of the first stream to 'eng'.
256 This made -vlang/-alang/-slang options redundant, so they were removed.
257 * -qscale option now uses stream specifiers and applies to all streams, not
258 just video. I.e. plain -qscale number would now apply to all streams. To get
259 the old behavior, use -qscale:v. Also there is now a shortcut -q for -qscale
260 and -aq is now an alias for -q:a.
261 * -vbsf/-absf/-sbsf options were removed and replaced by a -bsf option which
262 uses stream specifiers. Use -bsf:v/a/s instead of the old options.
263 * -itsscale option now uses stream specifiers, so its argument is only the
265 * -intra option was removed, use -g 0 for the same effect.
266 * -psnr option was removed, use -flags +psnr for the same effect.
267 * -vf option is now an alias to the new -filter option, which uses stream specifiers.
268 * -vframes/-aframes/-dframes options are now aliases to the new -frames option.
269 * -vtag/-atag/-stag options are now aliases to the new -tag option.
271 - Windows Media Image decoder
275 - libcdio-paranoia input device for audio CD grabbing
277 - Apple ProRes decoder
278 - CELT in Ogg demuxing
279 - VC-1 interlaced decoding
280 - lut, lutrgb, and lutyuv filters
283 - Speex encoding via libspeex
284 - 4:2:2 H.264 decoding support
285 - 4:2:2 and 4:4:4 H.264 encoding with libx264
286 - Pulseaudio input device
287 - replacement Indeo 3 decoder
288 - TLS/SSL and HTTPS protocol support
289 - AVOptions API rewritten and documented
290 - most of CODEC_FLAG2_*, some CODEC_FLAG_* and many codec-specific fields in
291 AVCodecContext deprecated. Codec private options should be used instead.
292 - Properly working defaults in libx264 wrapper, support for native presets.
293 - Encrypted OMA files support
294 - Discworld II BMV decoding support
296 - OS X Video Decoder Acceleration (VDA) support
297 - CRI ADX audio format muxer and demuxer
298 - Playstation Portable PMP format demuxer
299 - PCM format support in OMA demuxer
301 - Dxtory capture format decoder
302 - v410 QuickTime uncompressed 4:4:4 10-bit encoder and decoder
304 - Simple segmenting muxer
311 - E-AC-3 audio encoder
312 - ac3enc: add channel coupling support
313 - floating-point sample format support for (E-)AC-3, DCA, AAC, Vorbis decoders
314 - H.264/MPEG frame-level multithreading
315 - av_metadata_* functions renamed to av_dict_* and moved to libavutil
316 - 4:4:4 H.264 decoding support
317 - 10-bit H.264 optimizations for x86
318 - bump libswscale for recently reported ABI break
323 - VP8 frame-level multithreading
324 - NEON optimizations for VP8
325 - removed a lot of deprecated API cruft
326 - FFT and IMDCT optimizations for AVX (Sandy Bridge) processors
328 - SMPTE 302M AES3 audio decoder
329 - ffmpeg no longer quits after the 'q' key is pressed; use 'ctrl+c' instead
330 - 9bit and 10bit per sample support in the H.264 decoder
335 - WebM support in Matroska de/muxer
336 - low overhead Ogg muxing
338 - VP8 de/encoding via libvpx
339 - Demuxer for On2's IVF format
340 - Pictor/PC Paint decoder
342 - libfaad2 wrapper removed
343 - DTS-ES extension (XCh) decoding support
345 - RTSP tunneling over HTTP
346 - RTP depacketization of SVQ3
347 - -strict inofficial replaced by -strict unofficial
348 - ffplay -exitonkeydown and -exitonmousedown options added
349 - native GSM / GSM MS decoder
350 - RTP depacketization of QDM2
351 - ANSI/ASCII art playback system
352 - Lego Mindstorms RSO de/muxer
353 - SubRip subtitle file muxer and demuxer
354 - Chinese AVS encoding via libxavs
355 - ffprobe -show_packets option added
356 - RTP packetization of Theora and Vorbis
357 - RTP depacketization of MP4A-LATM
358 - RTP packetization and depacketization of VP8
360 - Apple HTTP Live Streaming demuxer
363 - G.722 ADPCM audio encoder/decoder
366 - frei0r wrapper filter
367 - change crop filter syntax to width:height:x:y
368 - make the crop filter accept parametric expressions
369 - make ffprobe accept AVFormatContext options
372 - Demuxer for Leitch/Harris' VR native stream format (LXF)
373 - RTP depacketization of the X-QT QuickTime format
374 - SAP (Session Announcement Protocol, RFC 2974) muxer and demuxer
376 - ffmpeg -crop* options removed
377 - transpose filter added
378 - ffmpeg -force_key_frames option added
379 - demuxer for receiving raw rtp:// URLs without an SDP description
380 - single stream LATM/LOAS decoder
381 - setpts filter added
382 - Win64 support for optimized x86 assembly functions
383 - MJPEG/AVI1 to JPEG/JFIF bitstream filter
384 - ASS subtitle encoder and decoder
385 - IEC 61937 encapsulation for E-AC-3, TrueHD, DTS-HD (for HDMI passthrough)
386 - overlay filter added
387 - rename aspect filter to setdar, and pixelaspect to setsar
389 - Mobotix .mxg demuxer
390 - frei0r source added
391 - hqdn3d filter added
392 - RTP depacketization of QCELP
394 - gradfun filter added
396 - replace the ocv_smooth filter with a more generic ocv filter
397 - Windows Televison (WTV) demuxer
398 - FFmpeg metadata format muxer and demuxer
399 - SubRip (srt) subtitle decoder
400 - floating-point AC-3 encoder added
402 - ffmpeg -copytb option added
404 - Wing Commander IV movies decoder added
406 - Bink version 'b' audio and video decoder
407 - Bitmap Brothers JV playback system
408 - Apple HTTP Live Streaming protocol handler
409 - sndio support for playback and record
410 - Linux framebuffer input device added
411 - Chronomaster DFA decoder
412 - Mobotix MxPEG decoder
413 - AAC encoding via libvo-aacenc
414 - AMR-WB encoding via libvo-amrwbenc
416 - fieldorder video filter added
421 - PB-frame decoding for H.263
422 - deprecated vhook subsystem removed
423 - deprecated old scaler removed
425 - Alpha channel scaler
427 - RTP packetization of H.263
428 - RTP packetization of AMR
429 - RTP depacketization of Vorbis
430 - CorePNG decoding support
431 - Cook multichannel decoding support
432 - introduced avlanguage helpers in libavformat
433 - 8088flex TMV demuxer and decoder
434 - per-stream language-tags extraction in asfdec
435 - V210 decoder and encoder
436 - remaining GPL parts in AC-3 decoder converted to LGPL
438 - SoX native format muxer and demuxer
439 - AMR-NB decoding/encoding, AMR-WB decoding via OpenCORE libraries
441 - Electronic Arts Madcow decoder
442 - DivX (XSUB) subtitle encoder
443 - nonfree libamr support for AMR-NB/WB decoding/encoding removed
444 - experimental AAC encoder
445 - RTP depacketization of ASF and RTSP from WMS servers
446 - RTMP support in libavformat
447 - noX handling for OPT_BOOL X options
449 - IEC-61937 compatible Muxer
451 - Bluray (PGS) subtitle decoder
452 - LPCM support in MPEG-TS (HDMV RID as found on Blu-ray disks)
454 - Core Audio Format demuxer
456 - MD STUDIO audio demuxer
457 - RF64 support in WAV demuxer
458 - MPEG-4 Audio Lossless Coding (ALS) decoder
459 - -formats option split into -formats, -codecs, -bsfs, and -protocols
461 - CDG demuxer and decoder
463 - Auravision Aura 1 and 2 decoders
464 - Deluxe Paint Animation playback system
466 - Adobe Filmstrip muxer and demuxer
467 - RTP depacketization of H.263
468 - Bink demuxer and audio/video decoders
469 - enable symbol versioning by default for linkers that support it
470 - IFF PBM/ILBM bitmap decoder
473 - RTP depacketization of AMR
479 - Kega Game Video (KGV1) decoder
480 - VorbisComment writing for FLAC, Ogg FLAC and Ogg Speex files
481 - RTP depacketization of Theora
482 - HTTP Digest authentication
483 - RTMP/RTMPT/RTMPS/RTMPE/RTMPTE protocol support via librtmp
484 - Psygnosis YOP demuxer and video decoder
485 - spectral extension support in the E-AC-3 decoder
486 - unsharp video filter
487 - RTP hinting in the mov/3gp/mp4 muxer
488 - Dirac in Ogg demuxing
489 - seek to keyframes in Ogg
490 - 4:2:2 and 4:4:4 Theora decoding
491 - 35% faster VP3/Theora decoding
492 - faster AAC decoding
493 - faster H.264 decoding
494 - RealAudio 1.0 (14.4K) encoder
499 - DV50 AKA DVCPRO50 encoder, decoder, muxer and demuxer
500 - TechSmith Camtasia (TSCC) video decoder
501 - IBM Ultimotion (ULTI) video decoder
502 - Sierra Online audio file demuxer and decoder
503 - Apple QuickDraw (qdrw) video decoder
504 - Creative ADPCM audio decoder (16 bits as well as 8 bits schemes)
505 - Electronic Arts Multimedia (WVE/UV2/etc.) file demuxer
506 - Miro VideoXL (VIXL) video decoder
507 - H.261 video encoder
509 - Nullsoft Video (NSV) file demuxer
510 - Shorten audio decoder
512 - Apple Lossless Audio Codec (ALAC) decoder
513 - Winnov WNV1 video decoder
514 - Autodesk Animator Studio Codec (AASC) decoder
515 - Indeo 2 video decoder
516 - Fraps FPS1 video decoder
517 - Snow video encoder/decoder
518 - Sonic audio encoder/decoder
519 - Vorbis audio decoder
520 - Macromedia ADPCM decoder
521 - Duck TrueMotion 2 video decoder
522 - support for decoding FLX and DTA extensions in FLIC files
523 - H.264 custom quantization matrices support
524 - ffserver fixed, it should now be usable again
526 - Real Cooker audio decoder
527 - TrueSpeech audio decoder
528 - WMA2 audio decoder fixed, now all files should play correctly
529 - RealAudio 14.4 and 28.8 decoders fixed
531 - build system improvements
532 - tabs and trailing whitespace removed from the codebase
533 - CamStudio video decoder
534 - AIFF/AIFF-C audio format, encoding and decoding
535 - ADTS AAC file reading and writing
536 - Creative VOC file reading and writing
537 - American Laser Games multimedia (*.mm) playback system
538 - Zip Motion Blocks Video decoder
539 - improved Theora/VP3 decoder
540 - True Audio (TTA) decoder
541 - AVS demuxer and video decoder
543 - Smacker demuxer and decoder
544 - NuppelVideo/MythTV demuxer and RTjpeg decoder
546 - MPEG-2 intra VLC support
547 - MPEG-2 4:2:2 encoder
548 - Flash Screen Video decoder
550 - Chinese AVS decoder
553 - VC-1/WMV3/WMV9 video decoder
556 - VMware video decoder
559 - WavPack lossless audio decoder
560 - Targa (.TGA) picture decoder
561 - Vorbis audio encoder
562 - Delphine Software .cin demuxer/audio and video decoder
563 - Tiertex .seq demuxer/video decoder
565 - TIFF picture encoder and decoder
566 - GIF picture decoder
567 - Intel Music Coder decoder
568 - Zip Motion Blocks Video encoder
570 - Flash Screen Video encoder
571 - Theora encoding via libtheora
574 - GSM-MS encoder and decoder
576 - DXA demuxer and decoder
578 - Gamecube movie (.THP) playback system
579 - Blackfin optimizations
580 - Interplay C93 demuxer and video decoder
581 - Bethsoft VID demuxer and video decoder
584 - V.Flash PTX decoder
585 - RoQ muxer, RoQ audio encoder
586 - Renderware TXD demuxer and decoder
587 - extern C declarations for C++ removed from headers
588 - sws_flags command line option
592 - OS/2 support removed and restored again
595 - additional SPARC (VIS) optimizations
597 - slice-based parallel H.264 decoding
598 - Monkey's Audio demuxer and decoder
599 - AMV audio and video decoder
601 - H.264 PAFF decoding
602 - Nellymoser ASAO decoder
603 - Beam Software SIFF demuxer and decoder
604 - libvorbis Vorbis decoding removed in favor of native decoder
605 - IntraX8 (J-Frame) subdecoder for WMV2 and VC-1
606 - Ogg (Theora, Vorbis and FLAC) muxer
607 - The "device" muxers and demuxers are now in a new libavdevice library
608 - PC Paintbrush PCX decoder
609 - Sun Rasterfile decoder
610 - TechnoTrend PVA demuxer
611 - Linux Media Labs MPEG-4 (LMLM4) demuxer
612 - AVM2 (Flash 9) SWF muxer
613 - QT variant of IMA ADPCM encoder
615 - iPod/iPhone compatible mp4 muxer
617 - MSN TCP Webcam stream demuxer
618 - RL2 demuxer / decoder
621 - non-recursive Makefiles
623 - MAXIS EA XA (.xa) demuxer / decoder
627 - Electronic Arts CMV decoder
628 - Motion Pixels Video decoder
629 - Motion Pixels MVI demuxer
630 - removed animated GIF decoder/demuxer
631 - D-Cinema audio muxer
632 - Electronic Arts TGV decoder
633 - Apple Lossless Audio Codec (ALAC) encoder
635 - floating point PCM encoder/decoder
637 - DV100 AKA DVCPRO HD decoder and demuxer
638 - E-AC-3 support added to AC-3 decoder
639 - Nellymoser ASAO encoder
640 - ASS and SSA demuxer and muxer
641 - liba52 wrapper removed
642 - SVQ3 watermark decoding support
643 - Speex decoding via libspeex
644 - Electronic Arts TGQ decoder
646 - QCELP / PureVoice decoder
648 - hybrid WavPack support
649 - R3D REDCODE demuxer
650 - ALSA support for playback and record
651 - Electronic Arts TQI decoder
652 - OpenJPEG based JPEG 2000 decoder
653 - NC (NC4600) camera file demuxer
654 - Gopher client support
656 - generic metadata API
661 - DV encoder, DV muxer
662 - Microsoft RLE video decoder
663 - Microsoft Video-1 decoder
664 - Apple Animation (RLE) decoder
665 - Apple Graphics (SMC) decoder
666 - Apple Video (RPZA) decoder
668 - Sega FILM (CPK) file demuxer
669 - Westwood multimedia support (VQA & AUD files)
670 - Id Quake II CIN playback support
672 - FLIC playback support
673 - RealVideo 2.0 (RV20) decoder
674 - Duck TrueMotion v1 (DUCK) video decoder
675 - Sierra VMD demuxer and video decoder
676 - MSZH and ZLIB decoder support
680 - rate distortion optimal cbp support
681 - rate distorted optimal ac prediction for MPEG-4
682 - rate distorted optimal lambda->qp support
683 - AAC encoding with libfaac
684 - Sunplus JPEG codec (SP5X) support
685 - use Lagrange multipler instead of QP for ratecontrol
686 - Theora/VP3 decoding support
687 - XA and ADX ADPCM codecs
688 - export MPEG-2 active display area / pan scan
689 - Add support for configuring with IBM XLC
690 - floating point AAN DCT
691 - initial support for zygo video (not complete)
693 - new audio/video parser API
695 - av_read_frame() and av_seek_frame() support
696 - missing last frame fixes
697 - seek by mouse in ffplay
698 - noise reduction of DCT coefficients
699 - H.263 OBMC & 4MV support
700 - H.263 alternative inter vlc support
702 - H.263 slice structured mode
703 - interlaced DCT support for MPEG-2 encoding
704 - stuffing to stay above min_bitrate
705 - MB type & QP visualization
706 - frame stepping for ffplay
707 - interlaced motion estimation
708 - alternate scantable support
709 - SVCD scan offset support
712 - quantizer noise shaping
713 - G.726 ADPCM audio codec
715 - multithreaded/SMP motion estimation
716 - multithreaded/SMP encoding for MPEG-1/MPEG-2/MPEG-4/H.263
717 - multithreaded/SMP decoding for MPEG-2
719 - Metrowerks CodeWarrior suppport
720 - H.263+ custom pcf support
721 - nicer output for 'ffmpeg -formats'
723 - SGI image format, encoding and decoding
724 - H.264 loop filter support
725 - H.264 CABAC support
726 - nicer looking arrows for the motion vector visualization
727 - improved VCD support
728 - audio timestamp drift compensation
729 - MPEG-2 YUV 422/444 support
730 - polyphase kaiser windowed sinc and blackman nuttall windowed sinc audio resample
731 - better image scaling
733 - correctly interleave packets during encoding
734 - VIS optimized motion compensation
735 - intra_dc_precision>0 encoding support
736 - support reuse of motion vectors/MB types/field select values of the source video
737 - more accurate deblock filter
739 - many optimizations and bugfixes
740 - FunCom ISS audio file demuxer and according ADPCM decoding
745 - MPEG-2 video encoding (Michael)
746 - Id RoQ playback subsystem (Mike Melanson and Tim Ferguson)
747 - Wing Commander III Movie (.mve) file playback subsystem (Mike Melanson
749 - Xan DPCM audio decoder (Mario Brito)
750 - Interplay MVE playback subsystem (Mike Melanson)
751 - Duck DK3 and DK4 ADPCM audio decoders (Mike Melanson)
756 - RealAudio 1.0 (14_4) and 2.0 (28_8) native decoders. Author unknown, code from mplayerhq
757 (originally from public domain player for Amiga at http://www.honeypot.net/audio)
758 - current version now also compiles with older GCC (Fabrice)
759 - 4X multimedia playback system including 4xm file demuxer (Mike
760 Melanson), and 4X video and audio codecs (Michael)
761 - Creative YUV (CYUV) decoder (Mike Melanson)
762 - FFV1 codec (our very simple lossless intra only codec, compresses much better
763 than HuffYUV) (Michael)
764 - ASV1 (Asus), H.264, Intel indeo3 codecs have been added (various)
765 - tiny PNG encoder and decoder, tiny GIF decoder, PAM decoder (PPM with
766 alpha support), JPEG YUV colorspace support. (Fabrice Bellard)
767 - ffplay has been replaced with a newer version which uses SDL (optionally)
768 for multiplatform support (Fabrice)
769 - Sorenson Version 3 codec (SVQ3) support has been added (decoding only) - donated
771 - AMR format has been added (Johannes Carlsson)
772 - 3GP support has been added (Johannes Carlsson)
773 - VP3 codec has been added (Mike Melanson)
774 - more MPEG-1/2 fixes
775 - better multiplatform support, MS Visual Studio fixes (various)
776 - AltiVec optimizations (Magnus Damn and others)
777 - SH4 processor support has been added (BERO)
778 - new public interfaces (avcodec_get_pix_fmt) (Roman Shaposhnick)
779 - VOB streaming support (Brian Foley)
780 - better MP3 autodetection (Andriy Rysin)
781 - qpel encoding (Michael)
782 - 4mv+b frames encoding finally fixed (Michael)
783 - chroma ME (Michael)
784 - 5 comparison functions for ME (Michael)
785 - B-frame encoding speedup (Michael)
786 - WMV2 codec (unfinished - Michael)
787 - user specified diamond size for EPZS (Michael)
788 - Playstation STR playback subsystem, still experimental (Mike and Michael)
789 - ASV2 codec (Michael)
790 - CLJR decoder (Alex)
792 .. And lots more new enhancements and fixes.
797 - completely new integer only MPEG audio layer 1/2/3 decoder rewritten
799 - Recoded DCT and motion vector search with gcc (no longer depends on nasm)
800 - fix quantization bug in AC3 encoder
801 - added PCM codecs and format. Corrected WAV/AVI/ASF PCM issues
802 - added prototype ffplay program
803 - added GOB header parsing on H.263/H.263+ decoder (Juanjo)
804 - bug fix on MCBPC tables of H.263 (Juanjo)
805 - bug fix on DC coefficients of H.263 (Juanjo)
806 - added Advanced Prediction Mode on H.263/H.263+ decoder (Juanjo)
807 - now we can decode H.263 streams found in QuickTime files (Juanjo)
808 - now we can decode H.263 streams found in VIVO v1 files(Juanjo)
809 - preliminary RTP "friendly" mode for H.263/H.263+ coding. (Juanjo)
810 - added GOB header for H.263/H.263+ coding on RTP mode (Juanjo)
811 - now H.263 picture size is returned on the first decoded frame (Juanjo)
812 - added first regression tests
813 - added MPEG-2 TS demuxer
814 - new demux API for libav
815 - more accurate and faster IDCT (Michael)
816 - faster and entropy-controlled motion search (Michael)
817 - two pass video encoding (Michael)
818 - new video rate control (Michael)
819 - added MSMPEG4V1, MSMPEGV2 and WMV1 support (Michael)
820 - great performance improvement of video encoders and decoders (Michael)
821 - new and faster bit readers and vlc parsers (Michael)
822 - high quality encoding mode: tries all macroblock/VLC types (Michael)
823 - added DV video decoder
824 - preliminary RTP/RTSP support in ffserver and libavformat
825 - H.263+ AIC decoding/encoding support (Juanjo)
826 - VCD MPEG-PS mode (Juanjo)
827 - PSNR stuff (Juanjo)
828 - simple stats output (Juanjo)
829 - 16-bit and 15-bit RGB/BGR/GBR support (Bisqwit)
834 - some header fixes (Zdenek Kabelac <kabi at informatics.muni.cz>)
835 - many MMX optimizations (Nick Kurshev <nickols_k at mail.ru>)
836 - added configure system (actually a small shell script)
837 - added MPEG audio layer 1/2/3 decoding using LGPL'ed mpglib by
838 Michael Hipp (temporary solution - waiting for integer only
840 - fixed VIDIOCSYNC interrupt
841 - added Intel H.263 decoding support ('I263' AVI fourCC)
842 - added Real Video 1.0 decoding (needs further testing)
843 - simplified image formats again. Added PGM format (=grey
844 pgm). Renamed old PGM to PGMYUV.
845 - fixed msmpeg4 slice issues (tell me if you still find problems)
846 - fixed OpenDivX bugs with newer versions (added VOL header decoding)
847 - added support for MPlayer interface
848 - added macroblock skip optimization
849 - added MJPEG decoder
850 - added mmx/mmxext IDCT from libmpeg2
851 - added pgmyuvpipe, ppm, and ppm_pipe formats (original patch by Celer
852 <celer at shell.scrypt.net>)
853 - added pixel format conversion layer (e.g. for MJPEG or PPM)
854 - added deinterlacing option
856 - MPEG-4 vol header fixes (Jonathan Marsden <snmjbm at pacbell.net>)
857 - ARM optimizations (Lionel Ulmer <lionel.ulmer at free.fr>).
858 - Windows porting of file converter
859 - added MJPEG raw format (input/ouput)
860 - added JPEG image format support (input/output)
865 - fixed some std header definitions (Bjorn Lindgren
866 <bjorn.e.lindgren at telia.com>).
867 - added MPEG demuxer (MPEG-1 and 2 compatible).
869 - added prototype RM demuxer
870 - added AC3 decoding (done with libac3 by Aaron Holtzman)
871 - added decoding codec parameter guessing (.e.g. for MPEG, because the
872 header does not include them)
873 - fixed header generation in MPEG-1, AVI and ASF muxer: wmplayer can now
874 play them (only tested video)
875 - fixed H.263 white bug
876 - fixed phase rounding in img resample filter
877 - add MMX code for polyphase img resample filter
878 - added CPU autodetection
879 - added generic title/author/copyright/comment string handling (ASF and RM
881 - added SWF demux to extract MP3 track (not usable yet because no MP3
883 - added fractional frame rate support
884 - codecs are no longer searched by read_header() (should fix ffserver
890 - BGR24 patch (initial patch by Jeroen Vreeken <pe1rxq at amsat.org>)
891 - fixed raw yuv output
892 - added motion rounding support in MPEG-4
893 - fixed motion bug rounding in MSMPEG4
894 - added B-frame handling in video core
895 - added full MPEG-1 decoding support
896 - added partial (frame only) MPEG-2 support
897 - changed the FOURCC code for H.263 to "U263" to be able to see the
898 +AVI/H.263 file with the UB Video H.263+ decoder. MPlayer works with
899 this +codec ;) (JuanJo).
900 - Halfpel motion estimation after MB type selection (JuanJo)
901 - added pgm and .Y.U.V output format
902 - suppressed 'img:' protocol. Simply use: /tmp/test%d.[pgm|Y] as input or
904 - added pgmpipe I/O format (original patch from Martin Aumueller
905 <lists at reserv.at>, but changed completely since we use a format
906 instead of a protocol)
911 - added H.263/MPEG-4/MSMPEG4 decoding support. MPEG-4 decoding support
912 (for OpenDivX) is almost complete: 8x8 MVs and rounding are
913 missing. MSMPEG4 support is complete.
914 - added prototype MPEG-1 decoder. Only I- and P-frames handled yet (it
915 can decode ffmpeg MPEGs :-)).
916 - added libavcodec API documentation (see apiexample.c).
917 - fixed image polyphase bug (the bottom of some images could be
919 - added support for non clipped motion vectors (decoding only)
920 and image sizes non-multiple of 16
921 - added support for AC prediction (decoding only)
922 - added file overwrite confirmation (can be disabled with -y)
923 - added custom size picture to H.263 using H.263+ (Juanjo)
928 - added MSMPEG4 (aka DivX) compatible encoder. Changed default codec
929 of AVI and ASF to DIV3.
930 - added -me option to set motion estimation method
931 (default=log). suppressed redundant -hq option.
932 - added options -acodec and -vcodec to force a given codec (useful for
935 - improved dct_quantize speed
936 - factorized some motion estimation code
941 - removing grab code from ffserver and moved it to ffmpeg. Added
942 multistream support to ffmpeg.
943 - added timeshifting support for live feeds (option ?date=xxx in the
945 - added high quality image resize code with polyphase filter (need
946 mmx/see optimization). Enable multiple image size support in ffserver.
947 - added multi live feed support in ffserver
948 - suppressed master feature from ffserver (it should be done with an
949 external program which opens the .ffm url and writes it to another
951 - added preliminary support for video stream parsing (WAV and AVI half
952 done). Added proper support for audio/video file conversion in
954 - added preliminary support for video file sending from ffserver
955 - redesigning I/O subsystem: now using URL based input and output
957 - added WAV format support
958 - added "tty user interface" to ffmpeg to stop grabbing gracefully
959 - added MMX/SSE optimizations to SAD (Sums of Absolutes Differences)
960 (Juan J. Sierralta P. a.k.a. "Juanjo" <juanjo at atmlab.utfsm.cl>)
961 - added MMX DCT from mpeg2_movie 1.5 (Juanjo)
962 - added new motion estimation algorithms, log and phods (Juanjo)
963 - changed directories: libav for format handling, libavcodec for
969 - added stereo in MPEG audio encoder
974 - added 'high quality' mode which use motion vectors. It can be used in
975 real time at low resolution.
976 - fixed rounding problems which caused quality problems at high
977 bitrates and large GOP size
980 version 0.3.2: small fixes
986 version 0.3.1: added avi/divx support
989 - added MPEG-4 codec compatible with OpenDivX. It is based on the H.263 codec
990 - added sound for flash format (not tested)
993 version 0.3: initial public release