1 Entries are sorted chronologically from oldest to youngest within each release,
2 releases are sorted from youngest to oldest.
7 - replaygain data export
8 - Alias PIX image encoder and decoder
9 - BRender PIX image decoder
10 - Amazing Studio PAF playback support
12 - bmp standalone parser
13 - OpenEXR image decoder
14 - support encoding and decoding 4-channel SGI images
15 - support decoding 16-bit RLE SGI images
17 - LucasArts SMUSH SANM video decoder
18 - LucasArts SMUSH VIMA audio decoder (ADPCM)
19 - LucasArts SMUSH demuxer
20 - MP2 encoding via TwoLAME
26 - support ID3v2 tags in ASF files
27 - reference-counting for AVFrame and AVPacket data
28 - avconv now fails when input options are used for output file
30 - avconv options -filter_script and -filter_complex_script, which allow a
31 filtergraph description to be read from a file
32 - uniform options syntax across all filters
35 - asetpts filter (same as setpts, but for audio)
36 - trim and atrim filters
37 - avconv -t and -ss (output-only) options are now sample-accurate when
39 - Matroska muxer can now put the index at the beginning of the file.
40 - avconv -deinterlace option removed, the yadif filter should be used instead
41 - Apple Intermediate Codec decoder
42 - Escape 130 video decoder
43 - support for slice multithreading in libavfilter
44 - VC-1 interlaced B-frame support
45 - support for WavPack muxing (raw and in Matroska)
47 - WavPack encoding through libwavpack
48 - Added the -n parameter to avconv
50 - when transcoding with avconv (i.e. not streamcopying), -ss is now accurate
51 even when used as an input option. Previous behavior can be restored with
52 the -noaccurate_seek option.
53 - avconv -t option can now be used for inputs, to limit the duration of
54 data read from an input file
55 - Voxware MetaSound decoder
57 - Error Resilient AAC syntax (ER AAC LC) decoding
58 - Low Delay AAC (ER AAC LD) decoding
59 - mux chapters in ASF files
60 - Opus in Ogg demuxing
61 - Enhanced Low Delay AAC (ER AAC ELD) decoding (no LD SBR support)
63 - HNM version 4 demuxer and video decoder
65 - raw HEVC, HEVC in MOV/MP4, HEVC in Matroska, HEVC in MPEG-TS demuxing
66 - remove avplay -vismv option, which has not worked for a long time
68 - setsar/setdar filters now support variables in ratio expressions
69 - dar variable in the scale filter now returns the actual DAR (i.e. a * sar)
71 - support for decoding through VDPAU in avconv (the -hwaccel option)
72 - remove mp3_header_(de)compress bitstream filters
73 - stereoscopic 3d metadata handling
74 - png standalone parser
75 - WebP encoding via libwebp
78 - Mirillis FIC video decoder
80 - compand audio filter
84 - av_basename and av_dirname
85 - adobe and limelight publisher authentication in RTMP
86 - VDPAU hardware acceleration through normal hwaccel
91 - ashowinfo audio filter
92 - 24-bit FLAC encoding
94 - deprecated the avconv -vol option. the volume filter is to be used instead.
95 - multi-channel ALAC encoding up to 7.1
96 - TAK demuxer, parser, and decoder
97 - adaptive frame-level multithreading for H.264
101 - metadata (INFO tag) support in WAV muxer
102 - support for building DLLs using MSVC
103 - remove avserver daemon mode
104 - support building on the Plan 9 operating system
105 - ffv1: support version 1.3
110 - XWD encoder and decoder
111 - Support for fragmentation in the mov/mp4 muxer
112 - ISMV (Smooth Streaming) muxer
113 - CDXL demuxer and decoder
114 - Apple ProRes encoder
115 - Sun Rasterfile Encoder
117 - ID3v2 attached pictures reading and writing
118 - WMA Lossless decoder
120 - RealAudio Lossless decoder
122 - drop support for avconv without libavfilter
123 - add libavresample audio conversion library
124 - audio filters support in libavfilter and avconv
128 - avprobe output is now standard INI or JSON. The old format can still
129 be used with -of old.
130 - Indeo Audio decoder
131 - channelsplit audio filter
132 - RTMPT protocol support
133 - iLBC encoding/decoding via libilbc
134 - Microsoft Screen 1 decoder
136 - audio channel mapping filter
137 - Microsoft ATC Screen decoder
139 - TechSmith Screen Codec 2 decoder
140 - AAC encoding via libfdk-aac
141 - Microsoft Expression Encoder Screen decoder
142 - RTMPS protocol support
143 - RTMPTS protocol support
144 - JPEG 2000 encoding support through OpenJPEG
145 - G.723.1 demuxer and decoder
146 - RTMPE protocol support
147 - RTMPTE protocol support
148 - Canopus Lossless Codec decoder
149 - avconv -shortest option is now per-output file,
150 -pass and -passlogfile are now per-output stream
152 - Microsoft Screen 2 decoder
153 - RTP depacketization of JPEG
154 - Smooth Streaming live segmenter muxer
155 - RTP packetization of JPEG
156 - Opus decoder and encoder using libopus
157 - remove -same_quant, it hasn't worked for years
158 - support for building with MSVC
169 - Automatic thread count based on detection number of (available) CPU cores
170 - Deprecate libpostproc. If desired, the switch --enable-postproc will
171 enable it but it may be removed in a later Libav release.
172 - rv34: frame-level multi-threading
173 - optimized iMDCT transform on x86 using SSE for for mpegaudiodec
179 - Flash Screen Video 2 decoder
180 - ffplay/ffprobe/ffserver renamed to avplay/avprobe/avserver
181 - ffmpeg deprecated, added avconv, which is almost the same for now, except
182 for a few incompatible changes in the options, which will hopefully make them
183 easier to use. The changes are:
184 * The options placement is now strictly enforced! While in theory the
185 options for ffmpeg should be given in [input options] -i INPUT [output
186 options] OUTPUT order, in practice it was possible to give output options
187 before the -i and it mostly worked. Except when it didn't - the behavior was
188 a bit inconsistent. In avconv, it is not possible to mix input and output
189 options. All non-global options are reset after an input or output filename.
190 * All per-file options are now truly per-file - they apply only to the next
191 input or output file and specifying different values for different files
192 will now work properly (notably -ss and -t options).
193 * All per-stream options are now truly per-stream - it is possible to
194 specify which stream(s) should a given option apply to. See the Stream
195 specifiers section in the avconv manual for details.
196 * In ffmpeg some options (like -newvideo/-newaudio/...) are irregular in the
197 sense that they're specified after the output filename instead of before,
198 like all other options. In avconv this irregularity is removed, all options
199 apply to the next input or output file.
200 * -newvideo/-newaudio/-newsubtitle options were removed. Not only were they
201 irregular and highly confusing, they were also redundant. In avconv the -map
202 option will create new streams in the output file and map input streams to
203 them. E.g. avconv -i INPUT -map 0 OUTPUT will create an output stream for
204 each stream in the first input file.
205 * The -map option now has slightly different and more powerful syntax:
206 + Colons (':') are used to separate file index/stream type/stream index
207 instead of dots. Comma (',') is used to separate the sync stream instead
208 of colon.. This is done for consistency with other options.
209 + It's possible to specify stream type. E.g. -map 0:a:2 creates an
210 output stream from the third input audio stream.
211 + Omitting the stream index now maps all the streams of the given type,
212 not just the first. E.g. -map 0:s creates output streams for all the
213 subtitle streams in the first input file.
214 + Since -map can now match multiple streams, negative mappings were
215 introduced. Negative mappings disable some streams from an already
216 defined map. E.g. '-map 0 -map -0:a:1' means 'create output streams for
217 all the stream in the first input file, except for the second audio
219 * There is a new option -c (or -codec) for choosing the decoder/encoder to
220 use, which allows to precisely specify target stream(s) consistently with
221 other options. E.g. -c:v lib264 sets the codec for all video streams, -c:a:0
222 libvorbis sets the codec for the first audio stream and -c copy copies all
223 the streams without reencoding. Old -vcodec/-acodec/-scodec options are now
225 * It is now possible to precisely specify which stream should an AVOption
226 apply to. E.g. -b:v:0 2M sets the bitrate for the first video stream, while
227 -b:a 128k sets the bitrate for all audio streams. Note that the old -ab 128k
228 syntax is deprecated and will stop working soon.
229 * -map_chapters now takes only an input file index and applies to the next
230 output file. This is consistent with how all the other options work.
231 * -map_metadata now takes only an input metadata specifier and applies to
232 the next output file. Output metadata specifier is now part of the option
233 name, similarly to the AVOptions/map/codec feature above.
234 * -metadata can now be used to set metadata on streams and chapters, e.g.
235 -metadata:s:1 language=eng sets the language of the first stream to 'eng'.
236 This made -vlang/-alang/-slang options redundant, so they were removed.
237 * -qscale option now uses stream specifiers and applies to all streams, not
238 just video. I.e. plain -qscale number would now apply to all streams. To get
239 the old behavior, use -qscale:v. Also there is now a shortcut -q for -qscale
240 and -aq is now an alias for -q:a.
241 * -vbsf/-absf/-sbsf options were removed and replaced by a -bsf option which
242 uses stream specifiers. Use -bsf:v/a/s instead of the old options.
243 * -itsscale option now uses stream specifiers, so its argument is only the
245 * -intra option was removed, use -g 0 for the same effect.
246 * -psnr option was removed, use -flags +psnr for the same effect.
247 * -vf option is now an alias to the new -filter option, which uses stream specifiers.
248 * -vframes/-aframes/-dframes options are now aliases to the new -frames option.
249 * -vtag/-atag/-stag options are now aliases to the new -tag option.
251 - Windows Media Image decoder
255 - libcdio-paranoia input device for audio CD grabbing
257 - Apple ProRes decoder
258 - CELT in Ogg demuxing
259 - VC-1 interlaced decoding
260 - lut, lutrgb, and lutyuv filters
263 - Speex encoding via libspeex
264 - 4:2:2 H.264 decoding support
265 - 4:2:2 and 4:4:4 H.264 encoding with libx264
266 - Pulseaudio input device
267 - replacement Indeo 3 decoder
268 - TLS/SSL and HTTPS protocol support
269 - AVOptions API rewritten and documented
270 - most of CODEC_FLAG2_*, some CODEC_FLAG_* and many codec-specific fields in
271 AVCodecContext deprecated. Codec private options should be used instead.
272 - Properly working defaults in libx264 wrapper, support for native presets.
273 - Encrypted OMA files support
274 - Discworld II BMV decoding support
276 - OS X Video Decoder Acceleration (VDA) support
277 - CRI ADX audio format muxer and demuxer
278 - Playstation Portable PMP format demuxer
279 - PCM format support in OMA demuxer
281 - Dxtory capture format decoder
282 - v410 QuickTime uncompressed 4:4:4 10-bit encoder and decoder
284 - Simple segmenting muxer
291 - E-AC-3 audio encoder
292 - ac3enc: add channel coupling support
293 - floating-point sample format support for (E-)AC-3, DCA, AAC, Vorbis decoders
294 - H.264/MPEG frame-level multithreading
295 - av_metadata_* functions renamed to av_dict_* and moved to libavutil
296 - 4:4:4 H.264 decoding support
297 - 10-bit H.264 optimizations for x86
298 - bump libswscale for recently reported ABI break
303 - VP8 frame-level multithreading
304 - NEON optimizations for VP8
305 - removed a lot of deprecated API cruft
306 - FFT and IMDCT optimizations for AVX (Sandy Bridge) processors
308 - SMPTE 302M AES3 audio decoder
309 - ffmpeg no longer quits after the 'q' key is pressed; use 'ctrl+c' instead
310 - 9bit and 10bit per sample support in the H.264 decoder
315 - WebM support in Matroska de/muxer
316 - low overhead Ogg muxing
318 - VP8 de/encoding via libvpx
319 - Demuxer for On2's IVF format
320 - Pictor/PC Paint decoder
322 - libfaad2 wrapper removed
323 - DTS-ES extension (XCh) decoding support
325 - RTSP tunneling over HTTP
326 - RTP depacketization of SVQ3
327 - -strict inofficial replaced by -strict unofficial
328 - ffplay -exitonkeydown and -exitonmousedown options added
329 - native GSM / GSM MS decoder
330 - RTP depacketization of QDM2
331 - ANSI/ASCII art playback system
332 - Lego Mindstorms RSO de/muxer
333 - SubRip subtitle file muxer and demuxer
334 - Chinese AVS encoding via libxavs
335 - ffprobe -show_packets option added
336 - RTP packetization of Theora and Vorbis
337 - RTP depacketization of MP4A-LATM
338 - RTP packetization and depacketization of VP8
340 - Apple HTTP Live Streaming demuxer
343 - G.722 ADPCM audio encoder/decoder
346 - frei0r wrapper filter
347 - change crop filter syntax to width:height:x:y
348 - make the crop filter accept parametric expressions
349 - make ffprobe accept AVFormatContext options
352 - Demuxer for Leitch/Harris' VR native stream format (LXF)
353 - RTP depacketization of the X-QT QuickTime format
354 - SAP (Session Announcement Protocol, RFC 2974) muxer and demuxer
356 - ffmpeg -crop* options removed
357 - transpose filter added
358 - ffmpeg -force_key_frames option added
359 - demuxer for receiving raw rtp:// URLs without an SDP description
360 - single stream LATM/LOAS decoder
361 - setpts filter added
362 - Win64 support for optimized x86 assembly functions
363 - MJPEG/AVI1 to JPEG/JFIF bitstream filter
364 - ASS subtitle encoder and decoder
365 - IEC 61937 encapsulation for E-AC-3, TrueHD, DTS-HD (for HDMI passthrough)
366 - overlay filter added
367 - rename aspect filter to setdar, and pixelaspect to setsar
369 - Mobotix .mxg demuxer
370 - frei0r source added
371 - hqdn3d filter added
372 - RTP depacketization of QCELP
374 - gradfun filter added
376 - replace the ocv_smooth filter with a more generic ocv filter
377 - Windows Televison (WTV) demuxer
378 - FFmpeg metadata format muxer and demuxer
379 - SubRip (srt) subtitle decoder
380 - floating-point AC-3 encoder added
382 - ffmpeg -copytb option added
384 - Wing Commander IV movies decoder added
386 - Bink version 'b' audio and video decoder
387 - Bitmap Brothers JV playback system
388 - Apple HTTP Live Streaming protocol handler
389 - sndio support for playback and record
390 - Linux framebuffer input device added
391 - Chronomaster DFA decoder
392 - Mobotix MxPEG decoder
393 - AAC encoding via libvo-aacenc
394 - AMR-WB encoding via libvo-amrwbenc
396 - fieldorder video filter added
401 - PB-frame decoding for H.263
402 - deprecated vhook subsystem removed
403 - deprecated old scaler removed
405 - Alpha channel scaler
407 - RTP packetization of H.263
408 - RTP packetization of AMR
409 - RTP depacketization of Vorbis
410 - CorePNG decoding support
411 - Cook multichannel decoding support
412 - introduced avlanguage helpers in libavformat
413 - 8088flex TMV demuxer and decoder
414 - per-stream language-tags extraction in asfdec
415 - V210 decoder and encoder
416 - remaining GPL parts in AC-3 decoder converted to LGPL
418 - SoX native format muxer and demuxer
419 - AMR-NB decoding/encoding, AMR-WB decoding via OpenCORE libraries
421 - Electronic Arts Madcow decoder
422 - DivX (XSUB) subtitle encoder
423 - nonfree libamr support for AMR-NB/WB decoding/encoding removed
424 - experimental AAC encoder
425 - RTP depacketization of ASF and RTSP from WMS servers
426 - RTMP support in libavformat
427 - noX handling for OPT_BOOL X options
429 - IEC-61937 compatible Muxer
431 - Bluray (PGS) subtitle decoder
432 - LPCM support in MPEG-TS (HDMV RID as found on Blu-ray disks)
434 - Core Audio Format demuxer
436 - MD STUDIO audio demuxer
437 - RF64 support in WAV demuxer
438 - MPEG-4 Audio Lossless Coding (ALS) decoder
439 - -formats option split into -formats, -codecs, -bsfs, and -protocols
441 - CDG demuxer and decoder
443 - Auravision Aura 1 and 2 decoders
444 - Deluxe Paint Animation playback system
446 - Adobe Filmstrip muxer and demuxer
447 - RTP depacketization of H.263
448 - Bink demuxer and audio/video decoders
449 - enable symbol versioning by default for linkers that support it
450 - IFF PBM/ILBM bitmap decoder
453 - RTP depacketization of AMR
459 - Kega Game Video (KGV1) decoder
460 - VorbisComment writing for FLAC, Ogg FLAC and Ogg Speex files
461 - RTP depacketization of Theora
462 - HTTP Digest authentication
463 - RTMP/RTMPT/RTMPS/RTMPE/RTMPTE protocol support via librtmp
464 - Psygnosis YOP demuxer and video decoder
465 - spectral extension support in the E-AC-3 decoder
466 - unsharp video filter
467 - RTP hinting in the mov/3gp/mp4 muxer
468 - Dirac in Ogg demuxing
469 - seek to keyframes in Ogg
470 - 4:2:2 and 4:4:4 Theora decoding
471 - 35% faster VP3/Theora decoding
472 - faster AAC decoding
473 - faster H.264 decoding
474 - RealAudio 1.0 (14.4K) encoder
479 - DV50 AKA DVCPRO50 encoder, decoder, muxer and demuxer
480 - TechSmith Camtasia (TSCC) video decoder
481 - IBM Ultimotion (ULTI) video decoder
482 - Sierra Online audio file demuxer and decoder
483 - Apple QuickDraw (qdrw) video decoder
484 - Creative ADPCM audio decoder (16 bits as well as 8 bits schemes)
485 - Electronic Arts Multimedia (WVE/UV2/etc.) file demuxer
486 - Miro VideoXL (VIXL) video decoder
487 - H.261 video encoder
489 - Nullsoft Video (NSV) file demuxer
490 - Shorten audio decoder
492 - Apple Lossless Audio Codec (ALAC) decoder
493 - Winnov WNV1 video decoder
494 - Autodesk Animator Studio Codec (AASC) decoder
495 - Indeo 2 video decoder
496 - Fraps FPS1 video decoder
497 - Snow video encoder/decoder
498 - Sonic audio encoder/decoder
499 - Vorbis audio decoder
500 - Macromedia ADPCM decoder
501 - Duck TrueMotion 2 video decoder
502 - support for decoding FLX and DTA extensions in FLIC files
503 - H.264 custom quantization matrices support
504 - ffserver fixed, it should now be usable again
506 - Real Cooker audio decoder
507 - TrueSpeech audio decoder
508 - WMA2 audio decoder fixed, now all files should play correctly
509 - RealAudio 14.4 and 28.8 decoders fixed
511 - build system improvements
512 - tabs and trailing whitespace removed from the codebase
513 - CamStudio video decoder
514 - AIFF/AIFF-C audio format, encoding and decoding
515 - ADTS AAC file reading and writing
516 - Creative VOC file reading and writing
517 - American Laser Games multimedia (*.mm) playback system
518 - Zip Motion Blocks Video decoder
519 - improved Theora/VP3 decoder
520 - True Audio (TTA) decoder
521 - AVS demuxer and video decoder
523 - Smacker demuxer and decoder
524 - NuppelVideo/MythTV demuxer and RTjpeg decoder
526 - MPEG-2 intra VLC support
527 - MPEG-2 4:2:2 encoder
528 - Flash Screen Video decoder
530 - Chinese AVS decoder
533 - VC-1/WMV3/WMV9 video decoder
536 - VMware video decoder
539 - WavPack lossless audio decoder
540 - Targa (.TGA) picture decoder
541 - Vorbis audio encoder
542 - Delphine Software .cin demuxer/audio and video decoder
543 - Tiertex .seq demuxer/video decoder
545 - TIFF picture encoder and decoder
546 - GIF picture decoder
547 - Intel Music Coder decoder
548 - Zip Motion Blocks Video encoder
550 - Flash Screen Video encoder
551 - Theora encoding via libtheora
554 - GSM-MS encoder and decoder
556 - DXA demuxer and decoder
558 - Gamecube movie (.THP) playback system
559 - Blackfin optimizations
560 - Interplay C93 demuxer and video decoder
561 - Bethsoft VID demuxer and video decoder
564 - V.Flash PTX decoder
565 - RoQ muxer, RoQ audio encoder
566 - Renderware TXD demuxer and decoder
567 - extern C declarations for C++ removed from headers
568 - sws_flags command line option
572 - OS/2 support removed and restored again
575 - additional SPARC (VIS) optimizations
577 - slice-based parallel H.264 decoding
578 - Monkey's Audio demuxer and decoder
579 - AMV audio and video decoder
581 - H.264 PAFF decoding
582 - Nellymoser ASAO decoder
583 - Beam Software SIFF demuxer and decoder
584 - libvorbis Vorbis decoding removed in favor of native decoder
585 - IntraX8 (J-Frame) subdecoder for WMV2 and VC-1
586 - Ogg (Theora, Vorbis and FLAC) muxer
587 - The "device" muxers and demuxers are now in a new libavdevice library
588 - PC Paintbrush PCX decoder
589 - Sun Rasterfile decoder
590 - TechnoTrend PVA demuxer
591 - Linux Media Labs MPEG-4 (LMLM4) demuxer
592 - AVM2 (Flash 9) SWF muxer
593 - QT variant of IMA ADPCM encoder
595 - iPod/iPhone compatible mp4 muxer
597 - MSN TCP Webcam stream demuxer
598 - RL2 demuxer / decoder
601 - non-recursive Makefiles
603 - MAXIS EA XA (.xa) demuxer / decoder
607 - Electronic Arts CMV decoder
608 - Motion Pixels Video decoder
609 - Motion Pixels MVI demuxer
610 - removed animated GIF decoder/demuxer
611 - D-Cinema audio muxer
612 - Electronic Arts TGV decoder
613 - Apple Lossless Audio Codec (ALAC) encoder
615 - floating point PCM encoder/decoder
617 - DV100 AKA DVCPRO HD decoder and demuxer
618 - E-AC-3 support added to AC-3 decoder
619 - Nellymoser ASAO encoder
620 - ASS and SSA demuxer and muxer
621 - liba52 wrapper removed
622 - SVQ3 watermark decoding support
623 - Speex decoding via libspeex
624 - Electronic Arts TGQ decoder
626 - QCELP / PureVoice decoder
628 - hybrid WavPack support
629 - R3D REDCODE demuxer
630 - ALSA support for playback and record
631 - Electronic Arts TQI decoder
632 - OpenJPEG based JPEG 2000 decoder
633 - NC (NC4600) camera file demuxer
634 - Gopher client support
636 - generic metadata API
641 - DV encoder, DV muxer
642 - Microsoft RLE video decoder
643 - Microsoft Video-1 decoder
644 - Apple Animation (RLE) decoder
645 - Apple Graphics (SMC) decoder
646 - Apple Video (RPZA) decoder
648 - Sega FILM (CPK) file demuxer
649 - Westwood multimedia support (VQA & AUD files)
650 - Id Quake II CIN playback support
652 - FLIC playback support
653 - RealVideo 2.0 (RV20) decoder
654 - Duck TrueMotion v1 (DUCK) video decoder
655 - Sierra VMD demuxer and video decoder
656 - MSZH and ZLIB decoder support
660 - rate distortion optimal cbp support
661 - rate distorted optimal ac prediction for MPEG-4
662 - rate distorted optimal lambda->qp support
663 - AAC encoding with libfaac
664 - Sunplus JPEG codec (SP5X) support
665 - use Lagrange multipler instead of QP for ratecontrol
666 - Theora/VP3 decoding support
667 - XA and ADX ADPCM codecs
668 - export MPEG-2 active display area / pan scan
669 - Add support for configuring with IBM XLC
670 - floating point AAN DCT
671 - initial support for zygo video (not complete)
673 - new audio/video parser API
675 - av_read_frame() and av_seek_frame() support
676 - missing last frame fixes
677 - seek by mouse in ffplay
678 - noise reduction of DCT coefficients
679 - H.263 OBMC & 4MV support
680 - H.263 alternative inter vlc support
682 - H.263 slice structured mode
683 - interlaced DCT support for MPEG-2 encoding
684 - stuffing to stay above min_bitrate
685 - MB type & QP visualization
686 - frame stepping for ffplay
687 - interlaced motion estimation
688 - alternate scantable support
689 - SVCD scan offset support
692 - quantizer noise shaping
693 - G.726 ADPCM audio codec
695 - multithreaded/SMP motion estimation
696 - multithreaded/SMP encoding for MPEG-1/MPEG-2/MPEG-4/H.263
697 - multithreaded/SMP decoding for MPEG-2
699 - Metrowerks CodeWarrior suppport
700 - H.263+ custom pcf support
701 - nicer output for 'ffmpeg -formats'
703 - SGI image format, encoding and decoding
704 - H.264 loop filter support
705 - H.264 CABAC support
706 - nicer looking arrows for the motion vector visualization
707 - improved VCD support
708 - audio timestamp drift compensation
709 - MPEG-2 YUV 422/444 support
710 - polyphase kaiser windowed sinc and blackman nuttall windowed sinc audio resample
711 - better image scaling
713 - correctly interleave packets during encoding
714 - VIS optimized motion compensation
715 - intra_dc_precision>0 encoding support
716 - support reuse of motion vectors/MB types/field select values of the source video
717 - more accurate deblock filter
719 - many optimizations and bugfixes
720 - FunCom ISS audio file demuxer and according ADPCM decoding
725 - MPEG-2 video encoding (Michael)
726 - Id RoQ playback subsystem (Mike Melanson and Tim Ferguson)
727 - Wing Commander III Movie (.mve) file playback subsystem (Mike Melanson
729 - Xan DPCM audio decoder (Mario Brito)
730 - Interplay MVE playback subsystem (Mike Melanson)
731 - Duck DK3 and DK4 ADPCM audio decoders (Mike Melanson)
736 - RealAudio 1.0 (14_4) and 2.0 (28_8) native decoders. Author unknown, code from mplayerhq
737 (originally from public domain player for Amiga at http://www.honeypot.net/audio)
738 - current version now also compiles with older GCC (Fabrice)
739 - 4X multimedia playback system including 4xm file demuxer (Mike
740 Melanson), and 4X video and audio codecs (Michael)
741 - Creative YUV (CYUV) decoder (Mike Melanson)
742 - FFV1 codec (our very simple lossless intra only codec, compresses much better
743 than HuffYUV) (Michael)
744 - ASV1 (Asus), H.264, Intel indeo3 codecs have been added (various)
745 - tiny PNG encoder and decoder, tiny GIF decoder, PAM decoder (PPM with
746 alpha support), JPEG YUV colorspace support. (Fabrice Bellard)
747 - ffplay has been replaced with a newer version which uses SDL (optionally)
748 for multiplatform support (Fabrice)
749 - Sorenson Version 3 codec (SVQ3) support has been added (decoding only) - donated
751 - AMR format has been added (Johannes Carlsson)
752 - 3GP support has been added (Johannes Carlsson)
753 - VP3 codec has been added (Mike Melanson)
754 - more MPEG-1/2 fixes
755 - better multiplatform support, MS Visual Studio fixes (various)
756 - AltiVec optimizations (Magnus Damn and others)
757 - SH4 processor support has been added (BERO)
758 - new public interfaces (avcodec_get_pix_fmt) (Roman Shaposhnick)
759 - VOB streaming support (Brian Foley)
760 - better MP3 autodetection (Andriy Rysin)
761 - qpel encoding (Michael)
762 - 4mv+b frames encoding finally fixed (Michael)
763 - chroma ME (Michael)
764 - 5 comparison functions for ME (Michael)
765 - B-frame encoding speedup (Michael)
766 - WMV2 codec (unfinished - Michael)
767 - user specified diamond size for EPZS (Michael)
768 - Playstation STR playback subsystem, still experimental (Mike and Michael)
769 - ASV2 codec (Michael)
770 - CLJR decoder (Alex)
772 .. And lots more new enhancements and fixes.
777 - completely new integer only MPEG audio layer 1/2/3 decoder rewritten
779 - Recoded DCT and motion vector search with gcc (no longer depends on nasm)
780 - fix quantization bug in AC3 encoder
781 - added PCM codecs and format. Corrected WAV/AVI/ASF PCM issues
782 - added prototype ffplay program
783 - added GOB header parsing on H.263/H.263+ decoder (Juanjo)
784 - bug fix on MCBPC tables of H.263 (Juanjo)
785 - bug fix on DC coefficients of H.263 (Juanjo)
786 - added Advanced Prediction Mode on H.263/H.263+ decoder (Juanjo)
787 - now we can decode H.263 streams found in QuickTime files (Juanjo)
788 - now we can decode H.263 streams found in VIVO v1 files(Juanjo)
789 - preliminary RTP "friendly" mode for H.263/H.263+ coding. (Juanjo)
790 - added GOB header for H.263/H.263+ coding on RTP mode (Juanjo)
791 - now H.263 picture size is returned on the first decoded frame (Juanjo)
792 - added first regression tests
793 - added MPEG-2 TS demuxer
794 - new demux API for libav
795 - more accurate and faster IDCT (Michael)
796 - faster and entropy-controlled motion search (Michael)
797 - two pass video encoding (Michael)
798 - new video rate control (Michael)
799 - added MSMPEG4V1, MSMPEGV2 and WMV1 support (Michael)
800 - great performance improvement of video encoders and decoders (Michael)
801 - new and faster bit readers and vlc parsers (Michael)
802 - high quality encoding mode: tries all macroblock/VLC types (Michael)
803 - added DV video decoder
804 - preliminary RTP/RTSP support in ffserver and libavformat
805 - H.263+ AIC decoding/encoding support (Juanjo)
806 - VCD MPEG-PS mode (Juanjo)
807 - PSNR stuff (Juanjo)
808 - simple stats output (Juanjo)
809 - 16-bit and 15-bit RGB/BGR/GBR support (Bisqwit)
814 - some header fixes (Zdenek Kabelac <kabi at informatics.muni.cz>)
815 - many MMX optimizations (Nick Kurshev <nickols_k at mail.ru>)
816 - added configure system (actually a small shell script)
817 - added MPEG audio layer 1/2/3 decoding using LGPL'ed mpglib by
818 Michael Hipp (temporary solution - waiting for integer only
820 - fixed VIDIOCSYNC interrupt
821 - added Intel H.263 decoding support ('I263' AVI fourCC)
822 - added Real Video 1.0 decoding (needs further testing)
823 - simplified image formats again. Added PGM format (=grey
824 pgm). Renamed old PGM to PGMYUV.
825 - fixed msmpeg4 slice issues (tell me if you still find problems)
826 - fixed OpenDivX bugs with newer versions (added VOL header decoding)
827 - added support for MPlayer interface
828 - added macroblock skip optimization
829 - added MJPEG decoder
830 - added mmx/mmxext IDCT from libmpeg2
831 - added pgmyuvpipe, ppm, and ppm_pipe formats (original patch by Celer
832 <celer at shell.scrypt.net>)
833 - added pixel format conversion layer (e.g. for MJPEG or PPM)
834 - added deinterlacing option
836 - MPEG-4 vol header fixes (Jonathan Marsden <snmjbm at pacbell.net>)
837 - ARM optimizations (Lionel Ulmer <lionel.ulmer at free.fr>).
838 - Windows porting of file converter
839 - added MJPEG raw format (input/ouput)
840 - added JPEG image format support (input/output)
845 - fixed some std header definitions (Bjorn Lindgren
846 <bjorn.e.lindgren at telia.com>).
847 - added MPEG demuxer (MPEG-1 and 2 compatible).
849 - added prototype RM demuxer
850 - added AC3 decoding (done with libac3 by Aaron Holtzman)
851 - added decoding codec parameter guessing (.e.g. for MPEG, because the
852 header does not include them)
853 - fixed header generation in MPEG-1, AVI and ASF muxer: wmplayer can now
854 play them (only tested video)
855 - fixed H.263 white bug
856 - fixed phase rounding in img resample filter
857 - add MMX code for polyphase img resample filter
858 - added CPU autodetection
859 - added generic title/author/copyright/comment string handling (ASF and RM
861 - added SWF demux to extract MP3 track (not usable yet because no MP3
863 - added fractional frame rate support
864 - codecs are no longer searched by read_header() (should fix ffserver
870 - BGR24 patch (initial patch by Jeroen Vreeken <pe1rxq at amsat.org>)
871 - fixed raw yuv output
872 - added motion rounding support in MPEG-4
873 - fixed motion bug rounding in MSMPEG4
874 - added B-frame handling in video core
875 - added full MPEG-1 decoding support
876 - added partial (frame only) MPEG-2 support
877 - changed the FOURCC code for H.263 to "U263" to be able to see the
878 +AVI/H.263 file with the UB Video H.263+ decoder. MPlayer works with
879 this +codec ;) (JuanJo).
880 - Halfpel motion estimation after MB type selection (JuanJo)
881 - added pgm and .Y.U.V output format
882 - suppressed 'img:' protocol. Simply use: /tmp/test%d.[pgm|Y] as input or
884 - added pgmpipe I/O format (original patch from Martin Aumueller
885 <lists at reserv.at>, but changed completely since we use a format
886 instead of a protocol)
891 - added H.263/MPEG-4/MSMPEG4 decoding support. MPEG-4 decoding support
892 (for OpenDivX) is almost complete: 8x8 MVs and rounding are
893 missing. MSMPEG4 support is complete.
894 - added prototype MPEG-1 decoder. Only I- and P-frames handled yet (it
895 can decode ffmpeg MPEGs :-)).
896 - added libavcodec API documentation (see apiexample.c).
897 - fixed image polyphase bug (the bottom of some images could be
899 - added support for non clipped motion vectors (decoding only)
900 and image sizes non-multiple of 16
901 - added support for AC prediction (decoding only)
902 - added file overwrite confirmation (can be disabled with -y)
903 - added custom size picture to H.263 using H.263+ (Juanjo)
908 - added MSMPEG4 (aka DivX) compatible encoder. Changed default codec
909 of AVI and ASF to DIV3.
910 - added -me option to set motion estimation method
911 (default=log). suppressed redundant -hq option.
912 - added options -acodec and -vcodec to force a given codec (useful for
915 - improved dct_quantize speed
916 - factorized some motion estimation code
921 - removing grab code from ffserver and moved it to ffmpeg. Added
922 multistream support to ffmpeg.
923 - added timeshifting support for live feeds (option ?date=xxx in the
925 - added high quality image resize code with polyphase filter (need
926 mmx/see optimization). Enable multiple image size support in ffserver.
927 - added multi live feed support in ffserver
928 - suppressed master feature from ffserver (it should be done with an
929 external program which opens the .ffm url and writes it to another
931 - added preliminary support for video stream parsing (WAV and AVI half
932 done). Added proper support for audio/video file conversion in
934 - added preliminary support for video file sending from ffserver
935 - redesigning I/O subsystem: now using URL based input and output
937 - added WAV format support
938 - added "tty user interface" to ffmpeg to stop grabbing gracefully
939 - added MMX/SSE optimizations to SAD (Sums of Absolutes Differences)
940 (Juan J. Sierralta P. a.k.a. "Juanjo" <juanjo at atmlab.utfsm.cl>)
941 - added MMX DCT from mpeg2_movie 1.5 (Juanjo)
942 - added new motion estimation algorithms, log and phods (Juanjo)
943 - changed directories: libav for format handling, libavcodec for
949 - added stereo in MPEG audio encoder
954 - added 'high quality' mode which use motion vectors. It can be used in
955 real time at low resolution.
956 - fixed rounding problems which caused quality problems at high
957 bitrates and large GOP size
960 version 0.3.2: small fixes
966 version 0.3.1: added avi/divx support
969 - added MPEG-4 codec compatible with OpenDivX. It is based on the H.263 codec
970 - added sound for flash format (not tested)
973 version 0.3: initial public release