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 - Direct3D11-accelerated decoding
16 - DXVA2-accelerated HEVC decoding
17 - AAC ELD 480 decoding
18 - Intel QSV-accelerated H.264 decoding
19 - DSS SP decoder and DSS demuxer
20 - RTP depacketizer for AC3 payload format (RFC 4184)
21 - RTP depacketizer for loss tolerant payload format for MP3 audio (RFC 5219)
22 - RTP depacketizer for DV (RFC 6469)
24 - RTP depacketization of T.140 text (RFC 4103)
25 - VP9 RTP payload format (draft 0) experimental depacketizer
27 - DTS lossless extension (XLL) decoding (not lossless, disabled by default)
28 - Intel QSV-accelerated H.264 encoding
29 - MMAL-accelerated H.264 decoding
30 - DTS decoding through libdcadec
31 - Canopus HQ/HQA decoder
32 - Automatically rotate videos based on metadata in avconv
33 - improved Quickdraw compatibility
34 - NVIDIA NVENC-accelerated H.264 and HEVC encoding support
35 - Multipart JPEG demuxer
36 - Support the extended vp9 profiles in the libvpx wrapper
37 - Hap decoder and encoder
38 - DirectDraw Surface image/texture decoder
39 - rewritten ASF demuxer
40 - Go2Meeting decoding support
41 - Intel QSV-accelerated MPEG-2 video and HEVC encoding
42 - bitstream filter for converting HEVC from MP4 to Annex B
43 - Intel QSV-accelerated MPEG-2 video and HEVC decoding
44 - Support DNx100 (1440x1080@8)
46 - Screenpresso SPV1 decoding
51 - shuffleplanes filter
52 - replaygain data export
53 - Alias PIX image encoder and decoder
54 - BRender PIX image decoder
55 - Amazing Studio PAF playback support
57 - BMP standalone parser
58 - OpenEXR image decoder
59 - support encoding and decoding 4-channel SGI images
60 - support decoding 16-bit RLE SGI images
62 - LucasArts SMUSH SANM video decoder
63 - LucasArts SMUSH VIMA audio decoder (ADPCM)
64 - LucasArts SMUSH demuxer
65 - MP2 encoding via TwoLAME
67 - Silicon Graphics RLE 8-bit video decoder
68 - Silicon Graphics Motion Video Compressor 1 & 2 decoder
69 - Silicon Graphics Movie demuxer
70 - On2 AVC (Audio for Video) decoder
71 - support for decoding through DXVA2 in avconv
72 - libbs2b-based stereo-to-binaural audio filter
74 - display matrix export and rotation API
75 - drop avserver, it was unmaintained for years and largely broken
77 - request Icecast metadata by default
78 - support for using metadata in stream specifiers in avtools
84 - support ID3v2 tags in ASF files
85 - reference-counting for AVFrame and AVPacket data
86 - avconv now fails when input options are used for output file
88 - avconv options -filter_script and -filter_complex_script, which allow a
89 filtergraph description to be read from a file
90 - uniform options syntax across all filters
93 - asetpts filter (same as setpts, but for audio)
94 - trim and atrim filters
95 - avconv -t and -ss (output-only) options are now sample-accurate when
97 - Matroska muxer can now put the index at the beginning of the file.
98 - avconv -deinterlace option removed, the yadif filter should be used instead
99 - Apple Intermediate Codec decoder
100 - Escape 130 video decoder
101 - support for slice multithreading in libavfilter
102 - VC-1 interlaced B-frame support
103 - support for WavPack muxing (raw and in Matroska)
105 - WavPack encoding through libwavpack
106 - Added the -n parameter to avconv
108 - when transcoding with avconv (i.e. not streamcopying), -ss is now accurate
109 even when used as an input option. Previous behavior can be restored with
110 the -noaccurate_seek option.
111 - avconv -t option can now be used for inputs, to limit the duration of
112 data read from an input file
113 - Voxware MetaSound decoder
115 - Error Resilient AAC syntax (ER AAC LC) decoding
116 - Low Delay AAC (ER AAC LD) decoding
117 - mux chapters in ASF files
118 - Opus in Ogg demuxing
119 - Enhanced Low Delay AAC (ER AAC ELD) decoding (no LD SBR support)
121 - HNM version 4 demuxer and video decoder
123 - raw HEVC, HEVC in MOV/MP4, HEVC in Matroska, HEVC in MPEG-TS demuxing
124 - remove avplay -vismv option, which has not worked for a long time
126 - setsar/setdar filters now support variables in ratio expressions
127 - dar variable in the scale filter now returns the actual DAR (i.e. a * sar)
129 - support for decoding through VDPAU in avconv (the -hwaccel option)
130 - remove mp3_header_(de)compress bitstream filters
131 - stereoscopic 3d metadata handling
132 - png standalone parser
133 - WebP encoding via libwebp
136 - Mirillis FIC video decoder
138 - compand audio filter
142 - av_basename and av_dirname
143 - adobe and limelight publisher authentication in RTMP
144 - VDPAU hardware acceleration through normal hwaccel
149 - ashowinfo audio filter
150 - 24-bit FLAC encoding
151 - audio volume filter
152 - deprecated the avconv -vol option. the volume filter is to be used instead.
153 - multi-channel ALAC encoding up to 7.1
154 - TAK demuxer, parser, and decoder
155 - adaptive frame-level multithreading for H.264
159 - metadata (INFO tag) support in WAV muxer
160 - support for building DLLs using MSVC
161 - remove avserver daemon mode
162 - support building on the Plan 9 operating system
163 - ffv1: support version 1.3
168 - XWD encoder and decoder
169 - Support for fragmentation in the mov/mp4 muxer
170 - ISMV (Smooth Streaming) muxer
171 - CDXL demuxer and decoder
172 - Apple ProRes encoder
173 - Sun Rasterfile Encoder
175 - ID3v2 attached pictures reading and writing
176 - WMA Lossless decoder
178 - RealAudio Lossless decoder
180 - drop support for avconv without libavfilter
181 - add libavresample audio conversion library
182 - audio filters support in libavfilter and avconv
186 - avprobe output is now standard INI or JSON. The old format can still
187 be used with -of old.
188 - Indeo Audio decoder
189 - channelsplit audio filter
190 - RTMPT protocol support
191 - iLBC encoding/decoding via libilbc
192 - Microsoft Screen 1 decoder
194 - audio channel mapping filter
195 - Microsoft ATC Screen decoder
197 - TechSmith Screen Codec 2 decoder
198 - AAC encoding via libfdk-aac
199 - Microsoft Expression Encoder Screen decoder
200 - RTMPS protocol support
201 - RTMPTS protocol support
202 - JPEG 2000 encoding support through OpenJPEG
203 - G.723.1 demuxer and decoder
204 - RTMPE protocol support
205 - RTMPTE protocol support
206 - Canopus Lossless Codec decoder
207 - avconv -shortest option is now per-output file,
208 -pass and -passlogfile are now per-output stream
210 - Microsoft Screen 2 decoder
211 - RTP depacketization of JPEG
212 - Smooth Streaming live segmenter muxer
213 - RTP packetization of JPEG
214 - Opus decoder and encoder using libopus
215 - remove -same_quant, it hasn't worked for years
216 - support for building with MSVC
227 - Automatic thread count based on detection number of (available) CPU cores
228 - Deprecate libpostproc. If desired, the switch --enable-postproc will
229 enable it but it may be removed in a later Libav release.
230 - rv34: frame-level multi-threading
231 - optimized iMDCT transform on x86 using SSE for for mpegaudiodec
237 - Flash Screen Video 2 decoder
238 - ffplay/ffprobe/ffserver renamed to avplay/avprobe/avserver
239 - ffmpeg deprecated, added avconv, which is almost the same for now, except
240 for a few incompatible changes in the options, which will hopefully make them
241 easier to use. The changes are:
242 * The options placement is now strictly enforced! While in theory the
243 options for ffmpeg should be given in [input options] -i INPUT [output
244 options] OUTPUT order, in practice it was possible to give output options
245 before the -i and it mostly worked. Except when it didn't - the behavior was
246 a bit inconsistent. In avconv, it is not possible to mix input and output
247 options. All non-global options are reset after an input or output filename.
248 * All per-file options are now truly per-file - they apply only to the next
249 input or output file and specifying different values for different files
250 will now work properly (notably -ss and -t options).
251 * All per-stream options are now truly per-stream - it is possible to
252 specify which stream(s) should a given option apply to. See the Stream
253 specifiers section in the avconv manual for details.
254 * In ffmpeg some options (like -newvideo/-newaudio/...) are irregular in the
255 sense that they're specified after the output filename instead of before,
256 like all other options. In avconv this irregularity is removed, all options
257 apply to the next input or output file.
258 * -newvideo/-newaudio/-newsubtitle options were removed. Not only were they
259 irregular and highly confusing, they were also redundant. In avconv the -map
260 option will create new streams in the output file and map input streams to
261 them. E.g. avconv -i INPUT -map 0 OUTPUT will create an output stream for
262 each stream in the first input file.
263 * The -map option now has slightly different and more powerful syntax:
264 + Colons (':') are used to separate file index/stream type/stream index
265 instead of dots. Comma (',') is used to separate the sync stream instead
266 of colon.. This is done for consistency with other options.
267 + It's possible to specify stream type. E.g. -map 0:a:2 creates an
268 output stream from the third input audio stream.
269 + Omitting the stream index now maps all the streams of the given type,
270 not just the first. E.g. -map 0:s creates output streams for all the
271 subtitle streams in the first input file.
272 + Since -map can now match multiple streams, negative mappings were
273 introduced. Negative mappings disable some streams from an already
274 defined map. E.g. '-map 0 -map -0:a:1' means 'create output streams for
275 all the stream in the first input file, except for the second audio
277 * There is a new option -c (or -codec) for choosing the decoder/encoder to
278 use, which allows to precisely specify target stream(s) consistently with
279 other options. E.g. -c:v lib264 sets the codec for all video streams, -c:a:0
280 libvorbis sets the codec for the first audio stream and -c copy copies all
281 the streams without reencoding. Old -vcodec/-acodec/-scodec options are now
283 * It is now possible to precisely specify which stream should an AVOption
284 apply to. E.g. -b:v:0 2M sets the bitrate for the first video stream, while
285 -b:a 128k sets the bitrate for all audio streams. Note that the old -ab 128k
286 syntax is deprecated and will stop working soon.
287 * -map_chapters now takes only an input file index and applies to the next
288 output file. This is consistent with how all the other options work.
289 * -map_metadata now takes only an input metadata specifier and applies to
290 the next output file. Output metadata specifier is now part of the option
291 name, similarly to the AVOptions/map/codec feature above.
292 * -metadata can now be used to set metadata on streams and chapters, e.g.
293 -metadata:s:1 language=eng sets the language of the first stream to 'eng'.
294 This made -vlang/-alang/-slang options redundant, so they were removed.
295 * -qscale option now uses stream specifiers and applies to all streams, not
296 just video. I.e. plain -qscale number would now apply to all streams. To get
297 the old behavior, use -qscale:v. Also there is now a shortcut -q for -qscale
298 and -aq is now an alias for -q:a.
299 * -vbsf/-absf/-sbsf options were removed and replaced by a -bsf option which
300 uses stream specifiers. Use -bsf:v/a/s instead of the old options.
301 * -itsscale option now uses stream specifiers, so its argument is only the
303 * -intra option was removed, use -g 0 for the same effect.
304 * -psnr option was removed, use -flags +psnr for the same effect.
305 * -vf option is now an alias to the new -filter option, which uses stream specifiers.
306 * -vframes/-aframes/-dframes options are now aliases to the new -frames option.
307 * -vtag/-atag/-stag options are now aliases to the new -tag option.
309 - Windows Media Image decoder
313 - libcdio-paranoia input device for audio CD grabbing
315 - Apple ProRes decoder
316 - CELT in Ogg demuxing
317 - VC-1 interlaced decoding
318 - lut, lutrgb, and lutyuv filters
321 - Speex encoding via libspeex
322 - 4:2:2 H.264 decoding support
323 - 4:2:2 and 4:4:4 H.264 encoding with libx264
324 - Pulseaudio input device
325 - replacement Indeo 3 decoder
326 - TLS/SSL and HTTPS protocol support
327 - AVOptions API rewritten and documented
328 - most of CODEC_FLAG2_*, some CODEC_FLAG_* and many codec-specific fields in
329 AVCodecContext deprecated. Codec private options should be used instead.
330 - Properly working defaults in libx264 wrapper, support for native presets.
331 - Encrypted OMA files support
332 - Discworld II BMV decoding support
334 - OS X Video Decoder Acceleration (VDA) support
335 - CRI ADX audio format muxer and demuxer
336 - Playstation Portable PMP format demuxer
337 - PCM format support in OMA demuxer
339 - Dxtory capture format decoder
340 - v410 QuickTime uncompressed 4:4:4 10-bit encoder and decoder
342 - Simple segmenting muxer
349 - E-AC-3 audio encoder
350 - ac3enc: add channel coupling support
351 - floating-point sample format support for (E-)AC-3, DCA, AAC, Vorbis decoders
352 - H.264/MPEG frame-level multithreading
353 - av_metadata_* functions renamed to av_dict_* and moved to libavutil
354 - 4:4:4 H.264 decoding support
355 - 10-bit H.264 optimizations for x86
356 - bump libswscale for recently reported ABI break
361 - VP8 frame-level multithreading
362 - NEON optimizations for VP8
363 - removed a lot of deprecated API cruft
364 - FFT and IMDCT optimizations for AVX (Sandy Bridge) processors
366 - SMPTE 302M AES3 audio decoder
367 - ffmpeg no longer quits after the 'q' key is pressed; use 'ctrl+c' instead
368 - 9bit and 10bit per sample support in the H.264 decoder
373 - WebM support in Matroska de/muxer
374 - low overhead Ogg muxing
376 - VP8 de/encoding via libvpx
377 - Demuxer for On2's IVF format
378 - Pictor/PC Paint decoder
380 - libfaad2 wrapper removed
381 - DTS-ES extension (XCh) decoding support
383 - RTSP tunneling over HTTP
384 - RTP depacketization of SVQ3
385 - -strict inofficial replaced by -strict unofficial
386 - ffplay -exitonkeydown and -exitonmousedown options added
387 - native GSM / GSM MS decoder
388 - RTP depacketization of QDM2
389 - ANSI/ASCII art playback system
390 - Lego Mindstorms RSO de/muxer
391 - SubRip subtitle file muxer and demuxer
392 - Chinese AVS encoding via libxavs
393 - ffprobe -show_packets option added
394 - RTP packetization of Theora and Vorbis
395 - RTP depacketization of MP4A-LATM
396 - RTP packetization and depacketization of VP8
398 - Apple HTTP Live Streaming demuxer
401 - G.722 ADPCM audio encoder/decoder
404 - frei0r wrapper filter
405 - change crop filter syntax to width:height:x:y
406 - make the crop filter accept parametric expressions
407 - make ffprobe accept AVFormatContext options
410 - Demuxer for Leitch/Harris' VR native stream format (LXF)
411 - RTP depacketization of the X-QT QuickTime format
412 - SAP (Session Announcement Protocol, RFC 2974) muxer and demuxer
414 - ffmpeg -crop* options removed
415 - transpose filter added
416 - ffmpeg -force_key_frames option added
417 - demuxer for receiving raw rtp:// URLs without an SDP description
418 - single stream LATM/LOAS decoder
419 - setpts filter added
420 - Win64 support for optimized x86 assembly functions
421 - MJPEG/AVI1 to JPEG/JFIF bitstream filter
422 - ASS subtitle encoder and decoder
423 - IEC 61937 encapsulation for E-AC-3, TrueHD, DTS-HD (for HDMI passthrough)
424 - overlay filter added
425 - rename aspect filter to setdar, and pixelaspect to setsar
427 - Mobotix .mxg demuxer
428 - frei0r source added
429 - hqdn3d filter added
430 - RTP depacketization of QCELP
432 - gradfun filter added
434 - replace the ocv_smooth filter with a more generic ocv filter
435 - Windows Televison (WTV) demuxer
436 - FFmpeg metadata format muxer and demuxer
437 - SubRip (srt) subtitle decoder
438 - floating-point AC-3 encoder added
440 - ffmpeg -copytb option added
442 - Wing Commander IV movies decoder added
444 - Bink version 'b' audio and video decoder
445 - Bitmap Brothers JV playback system
446 - Apple HTTP Live Streaming protocol handler
447 - sndio support for playback and record
448 - Linux framebuffer input device added
449 - Chronomaster DFA decoder
450 - Mobotix MxPEG decoder
451 - AAC encoding via libvo-aacenc
452 - AMR-WB encoding via libvo-amrwbenc
454 - fieldorder video filter added
459 - PB-frame decoding for H.263
460 - deprecated vhook subsystem removed
461 - deprecated old scaler removed
463 - Alpha channel scaler
465 - RTP packetization of H.263
466 - RTP packetization of AMR
467 - RTP depacketization of Vorbis
468 - CorePNG decoding support
469 - Cook multichannel decoding support
470 - introduced avlanguage helpers in libavformat
471 - 8088flex TMV demuxer and decoder
472 - per-stream language-tags extraction in asfdec
473 - V210 decoder and encoder
474 - remaining GPL parts in AC-3 decoder converted to LGPL
476 - SoX native format muxer and demuxer
477 - AMR-NB decoding/encoding, AMR-WB decoding via OpenCORE libraries
479 - Electronic Arts Madcow decoder
480 - DivX (XSUB) subtitle encoder
481 - nonfree libamr support for AMR-NB/WB decoding/encoding removed
482 - experimental AAC encoder
483 - RTP depacketization of ASF and RTSP from WMS servers
484 - RTMP support in libavformat
485 - noX handling for OPT_BOOL X options
487 - IEC-61937 compatible Muxer
489 - Bluray (PGS) subtitle decoder
490 - LPCM support in MPEG-TS (HDMV RID as found on Blu-ray disks)
492 - Core Audio Format demuxer
494 - MD STUDIO audio demuxer
495 - RF64 support in WAV demuxer
496 - MPEG-4 Audio Lossless Coding (ALS) decoder
497 - -formats option split into -formats, -codecs, -bsfs, and -protocols
499 - CDG demuxer and decoder
501 - Auravision Aura 1 and 2 decoders
502 - Deluxe Paint Animation playback system
504 - Adobe Filmstrip muxer and demuxer
505 - RTP depacketization of H.263
506 - Bink demuxer and audio/video decoders
507 - enable symbol versioning by default for linkers that support it
508 - IFF PBM/ILBM bitmap decoder
511 - RTP depacketization of AMR
517 - Kega Game Video (KGV1) decoder
518 - VorbisComment writing for FLAC, Ogg FLAC and Ogg Speex files
519 - RTP depacketization of Theora
520 - HTTP Digest authentication
521 - RTMP/RTMPT/RTMPS/RTMPE/RTMPTE protocol support via librtmp
522 - Psygnosis YOP demuxer and video decoder
523 - spectral extension support in the E-AC-3 decoder
524 - unsharp video filter
525 - RTP hinting in the mov/3gp/mp4 muxer
526 - Dirac in Ogg demuxing
527 - seek to keyframes in Ogg
528 - 4:2:2 and 4:4:4 Theora decoding
529 - 35% faster VP3/Theora decoding
530 - faster AAC decoding
531 - faster H.264 decoding
532 - RealAudio 1.0 (14.4K) encoder
537 - DV50 AKA DVCPRO50 encoder, decoder, muxer and demuxer
538 - TechSmith Camtasia (TSCC) video decoder
539 - IBM Ultimotion (ULTI) video decoder
540 - Sierra Online audio file demuxer and decoder
541 - Apple QuickDraw (qdrw) video decoder
542 - Creative ADPCM audio decoder (16 bits as well as 8 bits schemes)
543 - Electronic Arts Multimedia (WVE/UV2/etc.) file demuxer
544 - Miro VideoXL (VIXL) video decoder
545 - H.261 video encoder
547 - Nullsoft Video (NSV) file demuxer
548 - Shorten audio decoder
550 - Apple Lossless Audio Codec (ALAC) decoder
551 - Winnov WNV1 video decoder
552 - Autodesk Animator Studio Codec (AASC) decoder
553 - Indeo 2 video decoder
554 - Fraps FPS1 video decoder
555 - Snow video encoder/decoder
556 - Sonic audio encoder/decoder
557 - Vorbis audio decoder
558 - Macromedia ADPCM decoder
559 - Duck TrueMotion 2 video decoder
560 - support for decoding FLX and DTA extensions in FLIC files
561 - H.264 custom quantization matrices support
562 - ffserver fixed, it should now be usable again
564 - Real Cooker audio decoder
565 - TrueSpeech audio decoder
566 - WMA2 audio decoder fixed, now all files should play correctly
567 - RealAudio 14.4 and 28.8 decoders fixed
569 - build system improvements
570 - tabs and trailing whitespace removed from the codebase
571 - CamStudio video decoder
572 - AIFF/AIFF-C audio format, encoding and decoding
573 - ADTS AAC file reading and writing
574 - Creative VOC file reading and writing
575 - American Laser Games multimedia (*.mm) playback system
576 - Zip Motion Blocks Video decoder
577 - improved Theora/VP3 decoder
578 - True Audio (TTA) decoder
579 - AVS demuxer and video decoder
581 - Smacker demuxer and decoder
582 - NuppelVideo/MythTV demuxer and RTjpeg decoder
584 - MPEG-2 intra VLC support
585 - MPEG-2 4:2:2 encoder
586 - Flash Screen Video decoder
588 - Chinese AVS decoder
591 - VC-1/WMV3/WMV9 video decoder
594 - VMware video decoder
597 - WavPack lossless audio decoder
598 - Targa (.TGA) picture decoder
599 - Vorbis audio encoder
600 - Delphine Software .cin demuxer/audio and video decoder
601 - Tiertex .seq demuxer/video decoder
603 - TIFF picture encoder and decoder
604 - GIF picture decoder
605 - Intel Music Coder decoder
606 - Zip Motion Blocks Video encoder
608 - Flash Screen Video encoder
609 - Theora encoding via libtheora
612 - GSM-MS encoder and decoder
614 - DXA demuxer and decoder
616 - Gamecube movie (.THP) playback system
617 - Blackfin optimizations
618 - Interplay C93 demuxer and video decoder
619 - Bethsoft VID demuxer and video decoder
622 - V.Flash PTX decoder
623 - RoQ muxer, RoQ audio encoder
624 - Renderware TXD demuxer and decoder
625 - extern C declarations for C++ removed from headers
626 - sws_flags command line option
630 - OS/2 support removed and restored again
633 - additional SPARC (VIS) optimizations
635 - slice-based parallel H.264 decoding
636 - Monkey's Audio demuxer and decoder
637 - AMV audio and video decoder
639 - H.264 PAFF decoding
640 - Nellymoser ASAO decoder
641 - Beam Software SIFF demuxer and decoder
642 - libvorbis Vorbis decoding removed in favor of native decoder
643 - IntraX8 (J-Frame) subdecoder for WMV2 and VC-1
644 - Ogg (Theora, Vorbis and FLAC) muxer
645 - The "device" muxers and demuxers are now in a new libavdevice library
646 - PC Paintbrush PCX decoder
647 - Sun Rasterfile decoder
648 - TechnoTrend PVA demuxer
649 - Linux Media Labs MPEG-4 (LMLM4) demuxer
650 - AVM2 (Flash 9) SWF muxer
651 - QT variant of IMA ADPCM encoder
653 - iPod/iPhone compatible mp4 muxer
655 - MSN TCP Webcam stream demuxer
656 - RL2 demuxer / decoder
659 - non-recursive Makefiles
661 - MAXIS EA XA (.xa) demuxer / decoder
665 - Electronic Arts CMV decoder
666 - Motion Pixels Video decoder
667 - Motion Pixels MVI demuxer
668 - removed animated GIF decoder/demuxer
669 - D-Cinema audio muxer
670 - Electronic Arts TGV decoder
671 - Apple Lossless Audio Codec (ALAC) encoder
673 - floating point PCM encoder/decoder
675 - DV100 AKA DVCPRO HD decoder and demuxer
676 - E-AC-3 support added to AC-3 decoder
677 - Nellymoser ASAO encoder
678 - ASS and SSA demuxer and muxer
679 - liba52 wrapper removed
680 - SVQ3 watermark decoding support
681 - Speex decoding via libspeex
682 - Electronic Arts TGQ decoder
684 - QCELP / PureVoice decoder
686 - hybrid WavPack support
687 - R3D REDCODE demuxer
688 - ALSA support for playback and record
689 - Electronic Arts TQI decoder
690 - OpenJPEG based JPEG 2000 decoder
691 - NC (NC4600) camera file demuxer
692 - Gopher client support
694 - generic metadata API
699 - DV encoder, DV muxer
700 - Microsoft RLE video decoder
701 - Microsoft Video-1 decoder
702 - Apple Animation (RLE) decoder
703 - Apple Graphics (SMC) decoder
704 - Apple Video (RPZA) decoder
706 - Sega FILM (CPK) file demuxer
707 - Westwood multimedia support (VQA & AUD files)
708 - Id Quake II CIN playback support
710 - FLIC playback support
711 - RealVideo 2.0 (RV20) decoder
712 - Duck TrueMotion v1 (DUCK) video decoder
713 - Sierra VMD demuxer and video decoder
714 - MSZH and ZLIB decoder support
718 - rate distortion optimal cbp support
719 - rate distorted optimal ac prediction for MPEG-4
720 - rate distorted optimal lambda->qp support
721 - AAC encoding with libfaac
722 - Sunplus JPEG codec (SP5X) support
723 - use Lagrange multipler instead of QP for ratecontrol
724 - Theora/VP3 decoding support
725 - XA and ADX ADPCM codecs
726 - export MPEG-2 active display area / pan scan
727 - Add support for configuring with IBM XLC
728 - floating point AAN DCT
729 - initial support for zygo video (not complete)
731 - new audio/video parser API
733 - av_read_frame() and av_seek_frame() support
734 - missing last frame fixes
735 - seek by mouse in ffplay
736 - noise reduction of DCT coefficients
737 - H.263 OBMC & 4MV support
738 - H.263 alternative inter vlc support
740 - H.263 slice structured mode
741 - interlaced DCT support for MPEG-2 encoding
742 - stuffing to stay above min_bitrate
743 - MB type & QP visualization
744 - frame stepping for ffplay
745 - interlaced motion estimation
746 - alternate scantable support
747 - SVCD scan offset support
750 - quantizer noise shaping
751 - G.726 ADPCM audio codec
753 - multithreaded/SMP motion estimation
754 - multithreaded/SMP encoding for MPEG-1/MPEG-2/MPEG-4/H.263
755 - multithreaded/SMP decoding for MPEG-2
757 - Metrowerks CodeWarrior suppport
758 - H.263+ custom pcf support
759 - nicer output for 'ffmpeg -formats'
761 - SGI image format, encoding and decoding
762 - H.264 loop filter support
763 - H.264 CABAC support
764 - nicer looking arrows for the motion vector visualization
765 - improved VCD support
766 - audio timestamp drift compensation
767 - MPEG-2 YUV 422/444 support
768 - polyphase kaiser windowed sinc and blackman nuttall windowed sinc audio resample
769 - better image scaling
771 - correctly interleave packets during encoding
772 - VIS optimized motion compensation
773 - intra_dc_precision>0 encoding support
774 - support reuse of motion vectors/MB types/field select values of the source video
775 - more accurate deblock filter
777 - many optimizations and bugfixes
778 - FunCom ISS audio file demuxer and according ADPCM decoding
783 - MPEG-2 video encoding (Michael)
784 - Id RoQ playback subsystem (Mike Melanson and Tim Ferguson)
785 - Wing Commander III Movie (.mve) file playback subsystem (Mike Melanson
787 - Xan DPCM audio decoder (Mario Brito)
788 - Interplay MVE playback subsystem (Mike Melanson)
789 - Duck DK3 and DK4 ADPCM audio decoders (Mike Melanson)
794 - RealAudio 1.0 (14_4) and 2.0 (28_8) native decoders. Author unknown, code from mplayerhq
795 (originally from public domain player for Amiga at http://www.honeypot.net/audio)
796 - current version now also compiles with older GCC (Fabrice)
797 - 4X multimedia playback system including 4xm file demuxer (Mike
798 Melanson), and 4X video and audio codecs (Michael)
799 - Creative YUV (CYUV) decoder (Mike Melanson)
800 - FFV1 codec (our very simple lossless intra only codec, compresses much better
801 than HuffYUV) (Michael)
802 - ASV1 (Asus), H.264, Intel indeo3 codecs have been added (various)
803 - tiny PNG encoder and decoder, tiny GIF decoder, PAM decoder (PPM with
804 alpha support), JPEG YUV colorspace support. (Fabrice Bellard)
805 - ffplay has been replaced with a newer version which uses SDL (optionally)
806 for multiplatform support (Fabrice)
807 - Sorenson Version 3 codec (SVQ3) support has been added (decoding only) - donated
809 - AMR format has been added (Johannes Carlsson)
810 - 3GP support has been added (Johannes Carlsson)
811 - VP3 codec has been added (Mike Melanson)
812 - more MPEG-1/2 fixes
813 - better multiplatform support, MS Visual Studio fixes (various)
814 - AltiVec optimizations (Magnus Damn and others)
815 - SH4 processor support has been added (BERO)
816 - new public interfaces (avcodec_get_pix_fmt) (Roman Shaposhnick)
817 - VOB streaming support (Brian Foley)
818 - better MP3 autodetection (Andriy Rysin)
819 - qpel encoding (Michael)
820 - 4mv+b frames encoding finally fixed (Michael)
821 - chroma ME (Michael)
822 - 5 comparison functions for ME (Michael)
823 - B-frame encoding speedup (Michael)
824 - WMV2 codec (unfinished - Michael)
825 - user specified diamond size for EPZS (Michael)
826 - Playstation STR playback subsystem, still experimental (Mike and Michael)
827 - ASV2 codec (Michael)
828 - CLJR decoder (Alex)
830 .. And lots more new enhancements and fixes.
835 - completely new integer only MPEG audio layer 1/2/3 decoder rewritten
837 - Recoded DCT and motion vector search with gcc (no longer depends on nasm)
838 - fix quantization bug in AC3 encoder
839 - added PCM codecs and format. Corrected WAV/AVI/ASF PCM issues
840 - added prototype ffplay program
841 - added GOB header parsing on H.263/H.263+ decoder (Juanjo)
842 - bug fix on MCBPC tables of H.263 (Juanjo)
843 - bug fix on DC coefficients of H.263 (Juanjo)
844 - added Advanced Prediction Mode on H.263/H.263+ decoder (Juanjo)
845 - now we can decode H.263 streams found in QuickTime files (Juanjo)
846 - now we can decode H.263 streams found in VIVO v1 files(Juanjo)
847 - preliminary RTP "friendly" mode for H.263/H.263+ coding. (Juanjo)
848 - added GOB header for H.263/H.263+ coding on RTP mode (Juanjo)
849 - now H.263 picture size is returned on the first decoded frame (Juanjo)
850 - added first regression tests
851 - added MPEG-2 TS demuxer
852 - new demux API for libav
853 - more accurate and faster IDCT (Michael)
854 - faster and entropy-controlled motion search (Michael)
855 - two pass video encoding (Michael)
856 - new video rate control (Michael)
857 - added MSMPEG4V1, MSMPEGV2 and WMV1 support (Michael)
858 - great performance improvement of video encoders and decoders (Michael)
859 - new and faster bit readers and vlc parsers (Michael)
860 - high quality encoding mode: tries all macroblock/VLC types (Michael)
861 - added DV video decoder
862 - preliminary RTP/RTSP support in ffserver and libavformat
863 - H.263+ AIC decoding/encoding support (Juanjo)
864 - VCD MPEG-PS mode (Juanjo)
865 - PSNR stuff (Juanjo)
866 - simple stats output (Juanjo)
867 - 16-bit and 15-bit RGB/BGR/GBR support (Bisqwit)
872 - some header fixes (Zdenek Kabelac <kabi at informatics.muni.cz>)
873 - many MMX optimizations (Nick Kurshev <nickols_k at mail.ru>)
874 - added configure system (actually a small shell script)
875 - added MPEG audio layer 1/2/3 decoding using LGPL'ed mpglib by
876 Michael Hipp (temporary solution - waiting for integer only
878 - fixed VIDIOCSYNC interrupt
879 - added Intel H.263 decoding support ('I263' AVI fourCC)
880 - added Real Video 1.0 decoding (needs further testing)
881 - simplified image formats again. Added PGM format (=grey
882 pgm). Renamed old PGM to PGMYUV.
883 - fixed msmpeg4 slice issues (tell me if you still find problems)
884 - fixed OpenDivX bugs with newer versions (added VOL header decoding)
885 - added support for MPlayer interface
886 - added macroblock skip optimization
887 - added MJPEG decoder
888 - added mmx/mmxext IDCT from libmpeg2
889 - added pgmyuvpipe, ppm, and ppm_pipe formats (original patch by Celer
890 <celer at shell.scrypt.net>)
891 - added pixel format conversion layer (e.g. for MJPEG or PPM)
892 - added deinterlacing option
894 - MPEG-4 vol header fixes (Jonathan Marsden <snmjbm at pacbell.net>)
895 - ARM optimizations (Lionel Ulmer <lionel.ulmer at free.fr>).
896 - Windows porting of file converter
897 - added MJPEG raw format (input/ouput)
898 - added JPEG image format support (input/output)
903 - fixed some std header definitions (Bjorn Lindgren
904 <bjorn.e.lindgren at telia.com>).
905 - added MPEG demuxer (MPEG-1 and 2 compatible).
907 - added prototype RM demuxer
908 - added AC3 decoding (done with libac3 by Aaron Holtzman)
909 - added decoding codec parameter guessing (.e.g. for MPEG, because the
910 header does not include them)
911 - fixed header generation in MPEG-1, AVI and ASF muxer: wmplayer can now
912 play them (only tested video)
913 - fixed H.263 white bug
914 - fixed phase rounding in img resample filter
915 - add MMX code for polyphase img resample filter
916 - added CPU autodetection
917 - added generic title/author/copyright/comment string handling (ASF and RM
919 - added SWF demux to extract MP3 track (not usable yet because no MP3
921 - added fractional frame rate support
922 - codecs are no longer searched by read_header() (should fix ffserver
928 - BGR24 patch (initial patch by Jeroen Vreeken <pe1rxq at amsat.org>)
929 - fixed raw yuv output
930 - added motion rounding support in MPEG-4
931 - fixed motion bug rounding in MSMPEG4
932 - added B-frame handling in video core
933 - added full MPEG-1 decoding support
934 - added partial (frame only) MPEG-2 support
935 - changed the FOURCC code for H.263 to "U263" to be able to see the
936 +AVI/H.263 file with the UB Video H.263+ decoder. MPlayer works with
937 this +codec ;) (JuanJo).
938 - Halfpel motion estimation after MB type selection (JuanJo)
939 - added pgm and .Y.U.V output format
940 - suppressed 'img:' protocol. Simply use: /tmp/test%d.[pgm|Y] as input or
942 - added pgmpipe I/O format (original patch from Martin Aumueller
943 <lists at reserv.at>, but changed completely since we use a format
944 instead of a protocol)
949 - added H.263/MPEG-4/MSMPEG4 decoding support. MPEG-4 decoding support
950 (for OpenDivX) is almost complete: 8x8 MVs and rounding are
951 missing. MSMPEG4 support is complete.
952 - added prototype MPEG-1 decoder. Only I- and P-frames handled yet (it
953 can decode ffmpeg MPEGs :-)).
954 - added libavcodec API documentation (see apiexample.c).
955 - fixed image polyphase bug (the bottom of some images could be
957 - added support for non clipped motion vectors (decoding only)
958 and image sizes non-multiple of 16
959 - added support for AC prediction (decoding only)
960 - added file overwrite confirmation (can be disabled with -y)
961 - added custom size picture to H.263 using H.263+ (Juanjo)
966 - added MSMPEG4 (aka DivX) compatible encoder. Changed default codec
967 of AVI and ASF to DIV3.
968 - added -me option to set motion estimation method
969 (default=log). suppressed redundant -hq option.
970 - added options -acodec and -vcodec to force a given codec (useful for
973 - improved dct_quantize speed
974 - factorized some motion estimation code
979 - removing grab code from ffserver and moved it to ffmpeg. Added
980 multistream support to ffmpeg.
981 - added timeshifting support for live feeds (option ?date=xxx in the
983 - added high quality image resize code with polyphase filter (need
984 mmx/see optimization). Enable multiple image size support in ffserver.
985 - added multi live feed support in ffserver
986 - suppressed master feature from ffserver (it should be done with an
987 external program which opens the .ffm url and writes it to another
989 - added preliminary support for video stream parsing (WAV and AVI half
990 done). Added proper support for audio/video file conversion in
992 - added preliminary support for video file sending from ffserver
993 - redesigning I/O subsystem: now using URL based input and output
995 - added WAV format support
996 - added "tty user interface" to ffmpeg to stop grabbing gracefully
997 - added MMX/SSE optimizations to SAD (Sums of Absolutes Differences)
998 (Juan J. Sierralta P. a.k.a. "Juanjo" <juanjo at atmlab.utfsm.cl>)
999 - added MMX DCT from mpeg2_movie 1.5 (Juanjo)
1000 - added new motion estimation algorithms, log and phods (Juanjo)
1001 - changed directories: libav for format handling, libavcodec for
1007 - added stereo in MPEG audio encoder
1012 - added 'high quality' mode which use motion vectors. It can be used in
1013 real time at low resolution.
1014 - fixed rounding problems which caused quality problems at high
1015 bitrates and large GOP size
1018 version 0.3.2: small fixes
1024 version 0.3.1: added avi/divx support
1027 - added MPEG-4 codec compatible with OpenDivX. It is based on the H.263 codec
1028 - added sound for flash format (not tested)
1031 version 0.3: initial public release