1 Entries are sorted chronologically from oldest to youngest within each release,
2 releases are sorted from youngest to oldest.
5 - aliases and defaults for Ogg subtypes (opus, spx)
6 - HEVC/H.265 RTP payload format (draft v6) packetizer and depacketizer
7 - avplay now exits by default at the end of playback
8 - XCB-based screen-grabber
9 - creating DASH compatible fragmented MP4, MPEG-DASH segmenting muxer
10 - H.261 RTP payload format (RFC 4587) depacketizer and experimental packetizer
13 - OpenH264 encoder wrapper
14 - Support DNx100 (960x720@8)
15 - DXVA2-accelerated HEVC decoding
16 - AAC ELD 480 decoding
17 - Intel QSV-accelerated H.264 decoding
18 - DSS SP decoder and DSS demuxer
19 - RTP depacketizer for AC3 payload format (RFC 4184)
20 - RTP depacketizer for loss tolerant payload format for MP3 audio (RFC 5219)
25 - shuffleplanes filter
26 - replaygain data export
27 - Alias PIX image encoder and decoder
28 - BRender PIX image decoder
29 - Amazing Studio PAF playback support
31 - BMP standalone parser
32 - OpenEXR image decoder
33 - support encoding and decoding 4-channel SGI images
34 - support decoding 16-bit RLE SGI images
36 - LucasArts SMUSH SANM video decoder
37 - LucasArts SMUSH VIMA audio decoder (ADPCM)
38 - LucasArts SMUSH demuxer
39 - MP2 encoding via TwoLAME
41 - Silicon Graphics RLE 8-bit video decoder
42 - Silicon Graphics Motion Video Compressor 1 & 2 decoder
43 - Silicon Graphics Movie demuxer
44 - On2 AVC (Audio for Video) decoder
45 - support for decoding through DXVA2 in avconv
46 - libbs2b-based stereo-to-binaural audio filter
48 - display matrix export and rotation API
49 - drop avserver, it was unmaintained for years and largely broken
51 - request Icecast metadata by default
52 - support for using metadata in stream specifiers in avtools
58 - support ID3v2 tags in ASF files
59 - reference-counting for AVFrame and AVPacket data
60 - avconv now fails when input options are used for output file
62 - avconv options -filter_script and -filter_complex_script, which allow a
63 filtergraph description to be read from a file
64 - uniform options syntax across all filters
67 - asetpts filter (same as setpts, but for audio)
68 - trim and atrim filters
69 - avconv -t and -ss (output-only) options are now sample-accurate when
71 - Matroska muxer can now put the index at the beginning of the file.
72 - avconv -deinterlace option removed, the yadif filter should be used instead
73 - Apple Intermediate Codec decoder
74 - Escape 130 video decoder
75 - support for slice multithreading in libavfilter
76 - VC-1 interlaced B-frame support
77 - support for WavPack muxing (raw and in Matroska)
79 - WavPack encoding through libwavpack
80 - Added the -n parameter to avconv
82 - when transcoding with avconv (i.e. not streamcopying), -ss is now accurate
83 even when used as an input option. Previous behavior can be restored with
84 the -noaccurate_seek option.
85 - avconv -t option can now be used for inputs, to limit the duration of
86 data read from an input file
87 - Voxware MetaSound decoder
89 - Error Resilient AAC syntax (ER AAC LC) decoding
90 - Low Delay AAC (ER AAC LD) decoding
91 - mux chapters in ASF files
92 - Opus in Ogg demuxing
93 - Enhanced Low Delay AAC (ER AAC ELD) decoding (no LD SBR support)
95 - HNM version 4 demuxer and video decoder
97 - raw HEVC, HEVC in MOV/MP4, HEVC in Matroska, HEVC in MPEG-TS demuxing
98 - remove avplay -vismv option, which has not worked for a long time
100 - setsar/setdar filters now support variables in ratio expressions
101 - dar variable in the scale filter now returns the actual DAR (i.e. a * sar)
103 - support for decoding through VDPAU in avconv (the -hwaccel option)
104 - remove mp3_header_(de)compress bitstream filters
105 - stereoscopic 3d metadata handling
106 - png standalone parser
107 - WebP encoding via libwebp
110 - Mirillis FIC video decoder
112 - compand audio filter
116 - av_basename and av_dirname
117 - adobe and limelight publisher authentication in RTMP
118 - VDPAU hardware acceleration through normal hwaccel
123 - ashowinfo audio filter
124 - 24-bit FLAC encoding
125 - audio volume filter
126 - deprecated the avconv -vol option. the volume filter is to be used instead.
127 - multi-channel ALAC encoding up to 7.1
128 - TAK demuxer, parser, and decoder
129 - adaptive frame-level multithreading for H.264
133 - metadata (INFO tag) support in WAV muxer
134 - support for building DLLs using MSVC
135 - remove avserver daemon mode
136 - support building on the Plan 9 operating system
137 - ffv1: support version 1.3
142 - XWD encoder and decoder
143 - Support for fragmentation in the mov/mp4 muxer
144 - ISMV (Smooth Streaming) muxer
145 - CDXL demuxer and decoder
146 - Apple ProRes encoder
147 - Sun Rasterfile Encoder
149 - ID3v2 attached pictures reading and writing
150 - WMA Lossless decoder
152 - RealAudio Lossless decoder
154 - drop support for avconv without libavfilter
155 - add libavresample audio conversion library
156 - audio filters support in libavfilter and avconv
160 - avprobe output is now standard INI or JSON. The old format can still
161 be used with -of old.
162 - Indeo Audio decoder
163 - channelsplit audio filter
164 - RTMPT protocol support
165 - iLBC encoding/decoding via libilbc
166 - Microsoft Screen 1 decoder
168 - audio channel mapping filter
169 - Microsoft ATC Screen decoder
171 - TechSmith Screen Codec 2 decoder
172 - AAC encoding via libfdk-aac
173 - Microsoft Expression Encoder Screen decoder
174 - RTMPS protocol support
175 - RTMPTS protocol support
176 - JPEG 2000 encoding support through OpenJPEG
177 - G.723.1 demuxer and decoder
178 - RTMPE protocol support
179 - RTMPTE protocol support
180 - Canopus Lossless Codec decoder
181 - avconv -shortest option is now per-output file,
182 -pass and -passlogfile are now per-output stream
184 - Microsoft Screen 2 decoder
185 - RTP depacketization of JPEG
186 - Smooth Streaming live segmenter muxer
187 - RTP packetization of JPEG
188 - Opus decoder and encoder using libopus
189 - remove -same_quant, it hasn't worked for years
190 - support for building with MSVC
201 - Automatic thread count based on detection number of (available) CPU cores
202 - Deprecate libpostproc. If desired, the switch --enable-postproc will
203 enable it but it may be removed in a later Libav release.
204 - rv34: frame-level multi-threading
205 - optimized iMDCT transform on x86 using SSE for for mpegaudiodec
211 - Flash Screen Video 2 decoder
212 - ffplay/ffprobe/ffserver renamed to avplay/avprobe/avserver
213 - ffmpeg deprecated, added avconv, which is almost the same for now, except
214 for a few incompatible changes in the options, which will hopefully make them
215 easier to use. The changes are:
216 * The options placement is now strictly enforced! While in theory the
217 options for ffmpeg should be given in [input options] -i INPUT [output
218 options] OUTPUT order, in practice it was possible to give output options
219 before the -i and it mostly worked. Except when it didn't - the behavior was
220 a bit inconsistent. In avconv, it is not possible to mix input and output
221 options. All non-global options are reset after an input or output filename.
222 * All per-file options are now truly per-file - they apply only to the next
223 input or output file and specifying different values for different files
224 will now work properly (notably -ss and -t options).
225 * All per-stream options are now truly per-stream - it is possible to
226 specify which stream(s) should a given option apply to. See the Stream
227 specifiers section in the avconv manual for details.
228 * In ffmpeg some options (like -newvideo/-newaudio/...) are irregular in the
229 sense that they're specified after the output filename instead of before,
230 like all other options. In avconv this irregularity is removed, all options
231 apply to the next input or output file.
232 * -newvideo/-newaudio/-newsubtitle options were removed. Not only were they
233 irregular and highly confusing, they were also redundant. In avconv the -map
234 option will create new streams in the output file and map input streams to
235 them. E.g. avconv -i INPUT -map 0 OUTPUT will create an output stream for
236 each stream in the first input file.
237 * The -map option now has slightly different and more powerful syntax:
238 + Colons (':') are used to separate file index/stream type/stream index
239 instead of dots. Comma (',') is used to separate the sync stream instead
240 of colon.. This is done for consistency with other options.
241 + It's possible to specify stream type. E.g. -map 0:a:2 creates an
242 output stream from the third input audio stream.
243 + Omitting the stream index now maps all the streams of the given type,
244 not just the first. E.g. -map 0:s creates output streams for all the
245 subtitle streams in the first input file.
246 + Since -map can now match multiple streams, negative mappings were
247 introduced. Negative mappings disable some streams from an already
248 defined map. E.g. '-map 0 -map -0:a:1' means 'create output streams for
249 all the stream in the first input file, except for the second audio
251 * There is a new option -c (or -codec) for choosing the decoder/encoder to
252 use, which allows to precisely specify target stream(s) consistently with
253 other options. E.g. -c:v lib264 sets the codec for all video streams, -c:a:0
254 libvorbis sets the codec for the first audio stream and -c copy copies all
255 the streams without reencoding. Old -vcodec/-acodec/-scodec options are now
257 * It is now possible to precisely specify which stream should an AVOption
258 apply to. E.g. -b:v:0 2M sets the bitrate for the first video stream, while
259 -b:a 128k sets the bitrate for all audio streams. Note that the old -ab 128k
260 syntax is deprecated and will stop working soon.
261 * -map_chapters now takes only an input file index and applies to the next
262 output file. This is consistent with how all the other options work.
263 * -map_metadata now takes only an input metadata specifier and applies to
264 the next output file. Output metadata specifier is now part of the option
265 name, similarly to the AVOptions/map/codec feature above.
266 * -metadata can now be used to set metadata on streams and chapters, e.g.
267 -metadata:s:1 language=eng sets the language of the first stream to 'eng'.
268 This made -vlang/-alang/-slang options redundant, so they were removed.
269 * -qscale option now uses stream specifiers and applies to all streams, not
270 just video. I.e. plain -qscale number would now apply to all streams. To get
271 the old behavior, use -qscale:v. Also there is now a shortcut -q for -qscale
272 and -aq is now an alias for -q:a.
273 * -vbsf/-absf/-sbsf options were removed and replaced by a -bsf option which
274 uses stream specifiers. Use -bsf:v/a/s instead of the old options.
275 * -itsscale option now uses stream specifiers, so its argument is only the
277 * -intra option was removed, use -g 0 for the same effect.
278 * -psnr option was removed, use -flags +psnr for the same effect.
279 * -vf option is now an alias to the new -filter option, which uses stream specifiers.
280 * -vframes/-aframes/-dframes options are now aliases to the new -frames option.
281 * -vtag/-atag/-stag options are now aliases to the new -tag option.
283 - Windows Media Image decoder
287 - libcdio-paranoia input device for audio CD grabbing
289 - Apple ProRes decoder
290 - CELT in Ogg demuxing
291 - VC-1 interlaced decoding
292 - lut, lutrgb, and lutyuv filters
295 - Speex encoding via libspeex
296 - 4:2:2 H.264 decoding support
297 - 4:2:2 and 4:4:4 H.264 encoding with libx264
298 - Pulseaudio input device
299 - replacement Indeo 3 decoder
300 - TLS/SSL and HTTPS protocol support
301 - AVOptions API rewritten and documented
302 - most of CODEC_FLAG2_*, some CODEC_FLAG_* and many codec-specific fields in
303 AVCodecContext deprecated. Codec private options should be used instead.
304 - Properly working defaults in libx264 wrapper, support for native presets.
305 - Encrypted OMA files support
306 - Discworld II BMV decoding support
308 - OS X Video Decoder Acceleration (VDA) support
309 - CRI ADX audio format muxer and demuxer
310 - Playstation Portable PMP format demuxer
311 - PCM format support in OMA demuxer
313 - Dxtory capture format decoder
314 - v410 QuickTime uncompressed 4:4:4 10-bit encoder and decoder
316 - Simple segmenting muxer
323 - E-AC-3 audio encoder
324 - ac3enc: add channel coupling support
325 - floating-point sample format support for (E-)AC-3, DCA, AAC, Vorbis decoders
326 - H.264/MPEG frame-level multithreading
327 - av_metadata_* functions renamed to av_dict_* and moved to libavutil
328 - 4:4:4 H.264 decoding support
329 - 10-bit H.264 optimizations for x86
330 - bump libswscale for recently reported ABI break
335 - VP8 frame-level multithreading
336 - NEON optimizations for VP8
337 - removed a lot of deprecated API cruft
338 - FFT and IMDCT optimizations for AVX (Sandy Bridge) processors
340 - SMPTE 302M AES3 audio decoder
341 - ffmpeg no longer quits after the 'q' key is pressed; use 'ctrl+c' instead
342 - 9bit and 10bit per sample support in the H.264 decoder
347 - WebM support in Matroska de/muxer
348 - low overhead Ogg muxing
350 - VP8 de/encoding via libvpx
351 - Demuxer for On2's IVF format
352 - Pictor/PC Paint decoder
354 - libfaad2 wrapper removed
355 - DTS-ES extension (XCh) decoding support
357 - RTSP tunneling over HTTP
358 - RTP depacketization of SVQ3
359 - -strict inofficial replaced by -strict unofficial
360 - ffplay -exitonkeydown and -exitonmousedown options added
361 - native GSM / GSM MS decoder
362 - RTP depacketization of QDM2
363 - ANSI/ASCII art playback system
364 - Lego Mindstorms RSO de/muxer
365 - SubRip subtitle file muxer and demuxer
366 - Chinese AVS encoding via libxavs
367 - ffprobe -show_packets option added
368 - RTP packetization of Theora and Vorbis
369 - RTP depacketization of MP4A-LATM
370 - RTP packetization and depacketization of VP8
372 - Apple HTTP Live Streaming demuxer
375 - G.722 ADPCM audio encoder/decoder
378 - frei0r wrapper filter
379 - change crop filter syntax to width:height:x:y
380 - make the crop filter accept parametric expressions
381 - make ffprobe accept AVFormatContext options
384 - Demuxer for Leitch/Harris' VR native stream format (LXF)
385 - RTP depacketization of the X-QT QuickTime format
386 - SAP (Session Announcement Protocol, RFC 2974) muxer and demuxer
388 - ffmpeg -crop* options removed
389 - transpose filter added
390 - ffmpeg -force_key_frames option added
391 - demuxer for receiving raw rtp:// URLs without an SDP description
392 - single stream LATM/LOAS decoder
393 - setpts filter added
394 - Win64 support for optimized x86 assembly functions
395 - MJPEG/AVI1 to JPEG/JFIF bitstream filter
396 - ASS subtitle encoder and decoder
397 - IEC 61937 encapsulation for E-AC-3, TrueHD, DTS-HD (for HDMI passthrough)
398 - overlay filter added
399 - rename aspect filter to setdar, and pixelaspect to setsar
401 - Mobotix .mxg demuxer
402 - frei0r source added
403 - hqdn3d filter added
404 - RTP depacketization of QCELP
406 - gradfun filter added
408 - replace the ocv_smooth filter with a more generic ocv filter
409 - Windows Televison (WTV) demuxer
410 - FFmpeg metadata format muxer and demuxer
411 - SubRip (srt) subtitle decoder
412 - floating-point AC-3 encoder added
414 - ffmpeg -copytb option added
416 - Wing Commander IV movies decoder added
418 - Bink version 'b' audio and video decoder
419 - Bitmap Brothers JV playback system
420 - Apple HTTP Live Streaming protocol handler
421 - sndio support for playback and record
422 - Linux framebuffer input device added
423 - Chronomaster DFA decoder
424 - Mobotix MxPEG decoder
425 - AAC encoding via libvo-aacenc
426 - AMR-WB encoding via libvo-amrwbenc
428 - fieldorder video filter added
433 - PB-frame decoding for H.263
434 - deprecated vhook subsystem removed
435 - deprecated old scaler removed
437 - Alpha channel scaler
439 - RTP packetization of H.263
440 - RTP packetization of AMR
441 - RTP depacketization of Vorbis
442 - CorePNG decoding support
443 - Cook multichannel decoding support
444 - introduced avlanguage helpers in libavformat
445 - 8088flex TMV demuxer and decoder
446 - per-stream language-tags extraction in asfdec
447 - V210 decoder and encoder
448 - remaining GPL parts in AC-3 decoder converted to LGPL
450 - SoX native format muxer and demuxer
451 - AMR-NB decoding/encoding, AMR-WB decoding via OpenCORE libraries
453 - Electronic Arts Madcow decoder
454 - DivX (XSUB) subtitle encoder
455 - nonfree libamr support for AMR-NB/WB decoding/encoding removed
456 - experimental AAC encoder
457 - RTP depacketization of ASF and RTSP from WMS servers
458 - RTMP support in libavformat
459 - noX handling for OPT_BOOL X options
461 - IEC-61937 compatible Muxer
463 - Bluray (PGS) subtitle decoder
464 - LPCM support in MPEG-TS (HDMV RID as found on Blu-ray disks)
466 - Core Audio Format demuxer
468 - MD STUDIO audio demuxer
469 - RF64 support in WAV demuxer
470 - MPEG-4 Audio Lossless Coding (ALS) decoder
471 - -formats option split into -formats, -codecs, -bsfs, and -protocols
473 - CDG demuxer and decoder
475 - Auravision Aura 1 and 2 decoders
476 - Deluxe Paint Animation playback system
478 - Adobe Filmstrip muxer and demuxer
479 - RTP depacketization of H.263
480 - Bink demuxer and audio/video decoders
481 - enable symbol versioning by default for linkers that support it
482 - IFF PBM/ILBM bitmap decoder
485 - RTP depacketization of AMR
491 - Kega Game Video (KGV1) decoder
492 - VorbisComment writing for FLAC, Ogg FLAC and Ogg Speex files
493 - RTP depacketization of Theora
494 - HTTP Digest authentication
495 - RTMP/RTMPT/RTMPS/RTMPE/RTMPTE protocol support via librtmp
496 - Psygnosis YOP demuxer and video decoder
497 - spectral extension support in the E-AC-3 decoder
498 - unsharp video filter
499 - RTP hinting in the mov/3gp/mp4 muxer
500 - Dirac in Ogg demuxing
501 - seek to keyframes in Ogg
502 - 4:2:2 and 4:4:4 Theora decoding
503 - 35% faster VP3/Theora decoding
504 - faster AAC decoding
505 - faster H.264 decoding
506 - RealAudio 1.0 (14.4K) encoder
511 - DV50 AKA DVCPRO50 encoder, decoder, muxer and demuxer
512 - TechSmith Camtasia (TSCC) video decoder
513 - IBM Ultimotion (ULTI) video decoder
514 - Sierra Online audio file demuxer and decoder
515 - Apple QuickDraw (qdrw) video decoder
516 - Creative ADPCM audio decoder (16 bits as well as 8 bits schemes)
517 - Electronic Arts Multimedia (WVE/UV2/etc.) file demuxer
518 - Miro VideoXL (VIXL) video decoder
519 - H.261 video encoder
521 - Nullsoft Video (NSV) file demuxer
522 - Shorten audio decoder
524 - Apple Lossless Audio Codec (ALAC) decoder
525 - Winnov WNV1 video decoder
526 - Autodesk Animator Studio Codec (AASC) decoder
527 - Indeo 2 video decoder
528 - Fraps FPS1 video decoder
529 - Snow video encoder/decoder
530 - Sonic audio encoder/decoder
531 - Vorbis audio decoder
532 - Macromedia ADPCM decoder
533 - Duck TrueMotion 2 video decoder
534 - support for decoding FLX and DTA extensions in FLIC files
535 - H.264 custom quantization matrices support
536 - ffserver fixed, it should now be usable again
538 - Real Cooker audio decoder
539 - TrueSpeech audio decoder
540 - WMA2 audio decoder fixed, now all files should play correctly
541 - RealAudio 14.4 and 28.8 decoders fixed
543 - build system improvements
544 - tabs and trailing whitespace removed from the codebase
545 - CamStudio video decoder
546 - AIFF/AIFF-C audio format, encoding and decoding
547 - ADTS AAC file reading and writing
548 - Creative VOC file reading and writing
549 - American Laser Games multimedia (*.mm) playback system
550 - Zip Motion Blocks Video decoder
551 - improved Theora/VP3 decoder
552 - True Audio (TTA) decoder
553 - AVS demuxer and video decoder
555 - Smacker demuxer and decoder
556 - NuppelVideo/MythTV demuxer and RTjpeg decoder
558 - MPEG-2 intra VLC support
559 - MPEG-2 4:2:2 encoder
560 - Flash Screen Video decoder
562 - Chinese AVS decoder
565 - VC-1/WMV3/WMV9 video decoder
568 - VMware video decoder
571 - WavPack lossless audio decoder
572 - Targa (.TGA) picture decoder
573 - Vorbis audio encoder
574 - Delphine Software .cin demuxer/audio and video decoder
575 - Tiertex .seq demuxer/video decoder
577 - TIFF picture encoder and decoder
578 - GIF picture decoder
579 - Intel Music Coder decoder
580 - Zip Motion Blocks Video encoder
582 - Flash Screen Video encoder
583 - Theora encoding via libtheora
586 - GSM-MS encoder and decoder
588 - DXA demuxer and decoder
590 - Gamecube movie (.THP) playback system
591 - Blackfin optimizations
592 - Interplay C93 demuxer and video decoder
593 - Bethsoft VID demuxer and video decoder
596 - V.Flash PTX decoder
597 - RoQ muxer, RoQ audio encoder
598 - Renderware TXD demuxer and decoder
599 - extern C declarations for C++ removed from headers
600 - sws_flags command line option
604 - OS/2 support removed and restored again
607 - additional SPARC (VIS) optimizations
609 - slice-based parallel H.264 decoding
610 - Monkey's Audio demuxer and decoder
611 - AMV audio and video decoder
613 - H.264 PAFF decoding
614 - Nellymoser ASAO decoder
615 - Beam Software SIFF demuxer and decoder
616 - libvorbis Vorbis decoding removed in favor of native decoder
617 - IntraX8 (J-Frame) subdecoder for WMV2 and VC-1
618 - Ogg (Theora, Vorbis and FLAC) muxer
619 - The "device" muxers and demuxers are now in a new libavdevice library
620 - PC Paintbrush PCX decoder
621 - Sun Rasterfile decoder
622 - TechnoTrend PVA demuxer
623 - Linux Media Labs MPEG-4 (LMLM4) demuxer
624 - AVM2 (Flash 9) SWF muxer
625 - QT variant of IMA ADPCM encoder
627 - iPod/iPhone compatible mp4 muxer
629 - MSN TCP Webcam stream demuxer
630 - RL2 demuxer / decoder
633 - non-recursive Makefiles
635 - MAXIS EA XA (.xa) demuxer / decoder
639 - Electronic Arts CMV decoder
640 - Motion Pixels Video decoder
641 - Motion Pixels MVI demuxer
642 - removed animated GIF decoder/demuxer
643 - D-Cinema audio muxer
644 - Electronic Arts TGV decoder
645 - Apple Lossless Audio Codec (ALAC) encoder
647 - floating point PCM encoder/decoder
649 - DV100 AKA DVCPRO HD decoder and demuxer
650 - E-AC-3 support added to AC-3 decoder
651 - Nellymoser ASAO encoder
652 - ASS and SSA demuxer and muxer
653 - liba52 wrapper removed
654 - SVQ3 watermark decoding support
655 - Speex decoding via libspeex
656 - Electronic Arts TGQ decoder
658 - QCELP / PureVoice decoder
660 - hybrid WavPack support
661 - R3D REDCODE demuxer
662 - ALSA support for playback and record
663 - Electronic Arts TQI decoder
664 - OpenJPEG based JPEG 2000 decoder
665 - NC (NC4600) camera file demuxer
666 - Gopher client support
668 - generic metadata API
673 - DV encoder, DV muxer
674 - Microsoft RLE video decoder
675 - Microsoft Video-1 decoder
676 - Apple Animation (RLE) decoder
677 - Apple Graphics (SMC) decoder
678 - Apple Video (RPZA) decoder
680 - Sega FILM (CPK) file demuxer
681 - Westwood multimedia support (VQA & AUD files)
682 - Id Quake II CIN playback support
684 - FLIC playback support
685 - RealVideo 2.0 (RV20) decoder
686 - Duck TrueMotion v1 (DUCK) video decoder
687 - Sierra VMD demuxer and video decoder
688 - MSZH and ZLIB decoder support
692 - rate distortion optimal cbp support
693 - rate distorted optimal ac prediction for MPEG-4
694 - rate distorted optimal lambda->qp support
695 - AAC encoding with libfaac
696 - Sunplus JPEG codec (SP5X) support
697 - use Lagrange multipler instead of QP for ratecontrol
698 - Theora/VP3 decoding support
699 - XA and ADX ADPCM codecs
700 - export MPEG-2 active display area / pan scan
701 - Add support for configuring with IBM XLC
702 - floating point AAN DCT
703 - initial support for zygo video (not complete)
705 - new audio/video parser API
707 - av_read_frame() and av_seek_frame() support
708 - missing last frame fixes
709 - seek by mouse in ffplay
710 - noise reduction of DCT coefficients
711 - H.263 OBMC & 4MV support
712 - H.263 alternative inter vlc support
714 - H.263 slice structured mode
715 - interlaced DCT support for MPEG-2 encoding
716 - stuffing to stay above min_bitrate
717 - MB type & QP visualization
718 - frame stepping for ffplay
719 - interlaced motion estimation
720 - alternate scantable support
721 - SVCD scan offset support
724 - quantizer noise shaping
725 - G.726 ADPCM audio codec
727 - multithreaded/SMP motion estimation
728 - multithreaded/SMP encoding for MPEG-1/MPEG-2/MPEG-4/H.263
729 - multithreaded/SMP decoding for MPEG-2
731 - Metrowerks CodeWarrior suppport
732 - H.263+ custom pcf support
733 - nicer output for 'ffmpeg -formats'
735 - SGI image format, encoding and decoding
736 - H.264 loop filter support
737 - H.264 CABAC support
738 - nicer looking arrows for the motion vector visualization
739 - improved VCD support
740 - audio timestamp drift compensation
741 - MPEG-2 YUV 422/444 support
742 - polyphase kaiser windowed sinc and blackman nuttall windowed sinc audio resample
743 - better image scaling
745 - correctly interleave packets during encoding
746 - VIS optimized motion compensation
747 - intra_dc_precision>0 encoding support
748 - support reuse of motion vectors/MB types/field select values of the source video
749 - more accurate deblock filter
751 - many optimizations and bugfixes
752 - FunCom ISS audio file demuxer and according ADPCM decoding
757 - MPEG-2 video encoding (Michael)
758 - Id RoQ playback subsystem (Mike Melanson and Tim Ferguson)
759 - Wing Commander III Movie (.mve) file playback subsystem (Mike Melanson
761 - Xan DPCM audio decoder (Mario Brito)
762 - Interplay MVE playback subsystem (Mike Melanson)
763 - Duck DK3 and DK4 ADPCM audio decoders (Mike Melanson)
768 - RealAudio 1.0 (14_4) and 2.0 (28_8) native decoders. Author unknown, code from mplayerhq
769 (originally from public domain player for Amiga at http://www.honeypot.net/audio)
770 - current version now also compiles with older GCC (Fabrice)
771 - 4X multimedia playback system including 4xm file demuxer (Mike
772 Melanson), and 4X video and audio codecs (Michael)
773 - Creative YUV (CYUV) decoder (Mike Melanson)
774 - FFV1 codec (our very simple lossless intra only codec, compresses much better
775 than HuffYUV) (Michael)
776 - ASV1 (Asus), H.264, Intel indeo3 codecs have been added (various)
777 - tiny PNG encoder and decoder, tiny GIF decoder, PAM decoder (PPM with
778 alpha support), JPEG YUV colorspace support. (Fabrice Bellard)
779 - ffplay has been replaced with a newer version which uses SDL (optionally)
780 for multiplatform support (Fabrice)
781 - Sorenson Version 3 codec (SVQ3) support has been added (decoding only) - donated
783 - AMR format has been added (Johannes Carlsson)
784 - 3GP support has been added (Johannes Carlsson)
785 - VP3 codec has been added (Mike Melanson)
786 - more MPEG-1/2 fixes
787 - better multiplatform support, MS Visual Studio fixes (various)
788 - AltiVec optimizations (Magnus Damn and others)
789 - SH4 processor support has been added (BERO)
790 - new public interfaces (avcodec_get_pix_fmt) (Roman Shaposhnick)
791 - VOB streaming support (Brian Foley)
792 - better MP3 autodetection (Andriy Rysin)
793 - qpel encoding (Michael)
794 - 4mv+b frames encoding finally fixed (Michael)
795 - chroma ME (Michael)
796 - 5 comparison functions for ME (Michael)
797 - B-frame encoding speedup (Michael)
798 - WMV2 codec (unfinished - Michael)
799 - user specified diamond size for EPZS (Michael)
800 - Playstation STR playback subsystem, still experimental (Mike and Michael)
801 - ASV2 codec (Michael)
802 - CLJR decoder (Alex)
804 .. And lots more new enhancements and fixes.
809 - completely new integer only MPEG audio layer 1/2/3 decoder rewritten
811 - Recoded DCT and motion vector search with gcc (no longer depends on nasm)
812 - fix quantization bug in AC3 encoder
813 - added PCM codecs and format. Corrected WAV/AVI/ASF PCM issues
814 - added prototype ffplay program
815 - added GOB header parsing on H.263/H.263+ decoder (Juanjo)
816 - bug fix on MCBPC tables of H.263 (Juanjo)
817 - bug fix on DC coefficients of H.263 (Juanjo)
818 - added Advanced Prediction Mode on H.263/H.263+ decoder (Juanjo)
819 - now we can decode H.263 streams found in QuickTime files (Juanjo)
820 - now we can decode H.263 streams found in VIVO v1 files(Juanjo)
821 - preliminary RTP "friendly" mode for H.263/H.263+ coding. (Juanjo)
822 - added GOB header for H.263/H.263+ coding on RTP mode (Juanjo)
823 - now H.263 picture size is returned on the first decoded frame (Juanjo)
824 - added first regression tests
825 - added MPEG-2 TS demuxer
826 - new demux API for libav
827 - more accurate and faster IDCT (Michael)
828 - faster and entropy-controlled motion search (Michael)
829 - two pass video encoding (Michael)
830 - new video rate control (Michael)
831 - added MSMPEG4V1, MSMPEGV2 and WMV1 support (Michael)
832 - great performance improvement of video encoders and decoders (Michael)
833 - new and faster bit readers and vlc parsers (Michael)
834 - high quality encoding mode: tries all macroblock/VLC types (Michael)
835 - added DV video decoder
836 - preliminary RTP/RTSP support in ffserver and libavformat
837 - H.263+ AIC decoding/encoding support (Juanjo)
838 - VCD MPEG-PS mode (Juanjo)
839 - PSNR stuff (Juanjo)
840 - simple stats output (Juanjo)
841 - 16-bit and 15-bit RGB/BGR/GBR support (Bisqwit)
846 - some header fixes (Zdenek Kabelac <kabi at informatics.muni.cz>)
847 - many MMX optimizations (Nick Kurshev <nickols_k at mail.ru>)
848 - added configure system (actually a small shell script)
849 - added MPEG audio layer 1/2/3 decoding using LGPL'ed mpglib by
850 Michael Hipp (temporary solution - waiting for integer only
852 - fixed VIDIOCSYNC interrupt
853 - added Intel H.263 decoding support ('I263' AVI fourCC)
854 - added Real Video 1.0 decoding (needs further testing)
855 - simplified image formats again. Added PGM format (=grey
856 pgm). Renamed old PGM to PGMYUV.
857 - fixed msmpeg4 slice issues (tell me if you still find problems)
858 - fixed OpenDivX bugs with newer versions (added VOL header decoding)
859 - added support for MPlayer interface
860 - added macroblock skip optimization
861 - added MJPEG decoder
862 - added mmx/mmxext IDCT from libmpeg2
863 - added pgmyuvpipe, ppm, and ppm_pipe formats (original patch by Celer
864 <celer at shell.scrypt.net>)
865 - added pixel format conversion layer (e.g. for MJPEG or PPM)
866 - added deinterlacing option
868 - MPEG-4 vol header fixes (Jonathan Marsden <snmjbm at pacbell.net>)
869 - ARM optimizations (Lionel Ulmer <lionel.ulmer at free.fr>).
870 - Windows porting of file converter
871 - added MJPEG raw format (input/ouput)
872 - added JPEG image format support (input/output)
877 - fixed some std header definitions (Bjorn Lindgren
878 <bjorn.e.lindgren at telia.com>).
879 - added MPEG demuxer (MPEG-1 and 2 compatible).
881 - added prototype RM demuxer
882 - added AC3 decoding (done with libac3 by Aaron Holtzman)
883 - added decoding codec parameter guessing (.e.g. for MPEG, because the
884 header does not include them)
885 - fixed header generation in MPEG-1, AVI and ASF muxer: wmplayer can now
886 play them (only tested video)
887 - fixed H.263 white bug
888 - fixed phase rounding in img resample filter
889 - add MMX code for polyphase img resample filter
890 - added CPU autodetection
891 - added generic title/author/copyright/comment string handling (ASF and RM
893 - added SWF demux to extract MP3 track (not usable yet because no MP3
895 - added fractional frame rate support
896 - codecs are no longer searched by read_header() (should fix ffserver
902 - BGR24 patch (initial patch by Jeroen Vreeken <pe1rxq at amsat.org>)
903 - fixed raw yuv output
904 - added motion rounding support in MPEG-4
905 - fixed motion bug rounding in MSMPEG4
906 - added B-frame handling in video core
907 - added full MPEG-1 decoding support
908 - added partial (frame only) MPEG-2 support
909 - changed the FOURCC code for H.263 to "U263" to be able to see the
910 +AVI/H.263 file with the UB Video H.263+ decoder. MPlayer works with
911 this +codec ;) (JuanJo).
912 - Halfpel motion estimation after MB type selection (JuanJo)
913 - added pgm and .Y.U.V output format
914 - suppressed 'img:' protocol. Simply use: /tmp/test%d.[pgm|Y] as input or
916 - added pgmpipe I/O format (original patch from Martin Aumueller
917 <lists at reserv.at>, but changed completely since we use a format
918 instead of a protocol)
923 - added H.263/MPEG-4/MSMPEG4 decoding support. MPEG-4 decoding support
924 (for OpenDivX) is almost complete: 8x8 MVs and rounding are
925 missing. MSMPEG4 support is complete.
926 - added prototype MPEG-1 decoder. Only I- and P-frames handled yet (it
927 can decode ffmpeg MPEGs :-)).
928 - added libavcodec API documentation (see apiexample.c).
929 - fixed image polyphase bug (the bottom of some images could be
931 - added support for non clipped motion vectors (decoding only)
932 and image sizes non-multiple of 16
933 - added support for AC prediction (decoding only)
934 - added file overwrite confirmation (can be disabled with -y)
935 - added custom size picture to H.263 using H.263+ (Juanjo)
940 - added MSMPEG4 (aka DivX) compatible encoder. Changed default codec
941 of AVI and ASF to DIV3.
942 - added -me option to set motion estimation method
943 (default=log). suppressed redundant -hq option.
944 - added options -acodec and -vcodec to force a given codec (useful for
947 - improved dct_quantize speed
948 - factorized some motion estimation code
953 - removing grab code from ffserver and moved it to ffmpeg. Added
954 multistream support to ffmpeg.
955 - added timeshifting support for live feeds (option ?date=xxx in the
957 - added high quality image resize code with polyphase filter (need
958 mmx/see optimization). Enable multiple image size support in ffserver.
959 - added multi live feed support in ffserver
960 - suppressed master feature from ffserver (it should be done with an
961 external program which opens the .ffm url and writes it to another
963 - added preliminary support for video stream parsing (WAV and AVI half
964 done). Added proper support for audio/video file conversion in
966 - added preliminary support for video file sending from ffserver
967 - redesigning I/O subsystem: now using URL based input and output
969 - added WAV format support
970 - added "tty user interface" to ffmpeg to stop grabbing gracefully
971 - added MMX/SSE optimizations to SAD (Sums of Absolutes Differences)
972 (Juan J. Sierralta P. a.k.a. "Juanjo" <juanjo at atmlab.utfsm.cl>)
973 - added MMX DCT from mpeg2_movie 1.5 (Juanjo)
974 - added new motion estimation algorithms, log and phods (Juanjo)
975 - changed directories: libav for format handling, libavcodec for
981 - added stereo in MPEG audio encoder
986 - added 'high quality' mode which use motion vectors. It can be used in
987 real time at low resolution.
988 - fixed rounding problems which caused quality problems at high
989 bitrates and large GOP size
992 version 0.3.2: small fixes
998 version 0.3.1: added avi/divx support
1001 - added MPEG-4 codec compatible with OpenDivX. It is based on the H.263 codec
1002 - added sound for flash format (not tested)
1005 version 0.3: initial public release