1 Entries are sorted chronologically from oldest to youngest within each release,
2 releases are sorted from youngest to oldest.
5 - Support for spherical videos
6 - Intel QSV-accelerated VP8 and VC-1 decoding
7 - VAAPI-accelerated VP8 and HEVC decoding
8 - VAAPI-accelerated deinterlacing
9 - config.log and other configuration files moved into avbuild/ directory
10 - VAAPI-accelerated MPEG-2 and VP8 encoding
14 - aliases and defaults for Ogg subtypes (opus, spx)
15 - HEVC/H.265 RTP payload format (draft v6) packetizer and depacketizer
16 - avplay now exits by default at the end of playback
17 - XCB-based screen-grabber
18 - creating DASH compatible fragmented MP4, MPEG-DASH segmenting muxer
19 - H.261 RTP payload format (RFC 4587) depacketizer and experimental packetizer
22 - OpenH264 encoder wrapper
23 - Support DNx100 (960x720@8)
24 - Direct3D11-accelerated decoding
25 - DXVA2-accelerated HEVC decoding
26 - AAC ELD 480 decoding
27 - Intel QSV-accelerated H.264 decoding
28 - DSS SP decoder and DSS demuxer
29 - RTP depacketizer for AC3 payload format (RFC 4184)
30 - RTP depacketizer for loss tolerant payload format for MP3 audio (RFC 5219)
31 - RTP depacketizer for DV (RFC 6469)
33 - RTP depacketization of T.140 text (RFC 4103)
34 - VP9 RTP payload format (draft 0) experimental depacketizer
36 - DTS lossless extension (XLL) decoding (not lossless, disabled by default)
37 - Intel QSV-accelerated H.264 encoding
38 - MMAL-accelerated H.264 decoding
39 - DTS decoding through libdcadec
40 - Canopus HQ/HQA decoder
41 - Automatically rotate videos based on metadata in avconv
42 - improved Quickdraw compatibility
43 - NVIDIA NVENC-accelerated H.264 and HEVC encoding support
44 - Multipart JPEG demuxer
45 - Support the extended vp9 profiles in the libvpx wrapper
46 - Hap decoder and encoder
47 - DirectDraw Surface image/texture decoder
48 - rewritten ASF demuxer
49 - Go2Meeting decoding support
50 - Intel QSV-accelerated MPEG-2 video and HEVC encoding
51 - bitstream filter for converting HEVC from MP4 to Annex B
52 - Intel QSV-accelerated MPEG-2 video and HEVC decoding
53 - Support DNx100 (1440x1080@8)
55 - Screenpresso SPV1 decoding
56 - zero-copy Intel QSV transcoding in avconv
57 - libkvazaar HEVC encoder
58 - innoHeim/Rsupport Screen Capture Codec decoder
59 - support encoding 16-bit RLE SGI images
60 - support Apple AVFoundation video capture
61 - G.723.1 muxer and encoder
63 - VAAPI-accelerated format conversion and scaling
64 - libnpp/CUDA-accelerated format conversion and scaling
65 - VAAPI-accelerate H.264/HEVC/MJPEG encoding
66 - Generic OpenMAX IL encoder with support for Raspberry Pi
67 - MMAL-accelerated MPEG-2 and VC-1 decoding
70 - Duck TrueMotion 2.0 Real Time decoder
71 - Intel QSV video scaling and deinterlacing filter
72 - Support MOV with multiple sample description tables
73 - OpenH264 decoder wrapper
74 - Removed the legacy X11 screen grabber, use XCB instead
75 - HDCD decoding filter through libhdcd
80 - shuffleplanes filter
81 - replaygain data export
82 - Alias PIX image encoder and decoder
83 - BRender PIX image decoder
84 - Amazing Studio PAF playback support
86 - BMP standalone parser
87 - OpenEXR image decoder
88 - support encoding and decoding 4-channel SGI images
89 - support decoding 16-bit RLE SGI images
91 - LucasArts SMUSH SANM video decoder
92 - LucasArts SMUSH VIMA audio decoder (ADPCM)
93 - LucasArts SMUSH demuxer
94 - MP2 encoding via TwoLAME
96 - Silicon Graphics RLE 8-bit video decoder
97 - Silicon Graphics Motion Video Compressor 1 & 2 decoder
98 - Silicon Graphics Movie demuxer
99 - On2 AVC (Audio for Video) decoder
100 - support for decoding through DXVA2 in avconv
101 - libbs2b-based stereo-to-binaural audio filter
102 - native Opus decoder
103 - display matrix export and rotation API
104 - drop avserver, it was unmaintained for years and largely broken
106 - request Icecast metadata by default
107 - support for using metadata in stream specifiers in avtools
108 - Matroska 3D support
113 - support ID3v2 tags in ASF files
114 - reference-counting for AVFrame and AVPacket data
115 - avconv now fails when input options are used for output file
117 - avconv options -filter_script and -filter_complex_script, which allow a
118 filtergraph description to be read from a file
119 - uniform options syntax across all filters
122 - asetpts filter (same as setpts, but for audio)
123 - trim and atrim filters
124 - avconv -t and -ss (output-only) options are now sample-accurate when
126 - Matroska muxer can now put the index at the beginning of the file.
127 - avconv -deinterlace option removed, the yadif filter should be used instead
128 - Apple Intermediate Codec decoder
129 - Escape 130 video decoder
130 - support for slice multithreading in libavfilter
131 - VC-1 interlaced B-frame support
132 - support for WavPack muxing (raw and in Matroska)
134 - WavPack encoding through libwavpack
135 - Added the -n parameter to avconv
137 - when transcoding with avconv (i.e. not streamcopying), -ss is now accurate
138 even when used as an input option. Previous behavior can be restored with
139 the -noaccurate_seek option.
140 - avconv -t option can now be used for inputs, to limit the duration of
141 data read from an input file
142 - Voxware MetaSound decoder
144 - Error Resilient AAC syntax (ER AAC LC) decoding
145 - Low Delay AAC (ER AAC LD) decoding
146 - mux chapters in ASF files
147 - Opus in Ogg demuxing
148 - Enhanced Low Delay AAC (ER AAC ELD) decoding (no LD SBR support)
150 - HNM version 4 demuxer and video decoder
152 - raw HEVC, HEVC in MOV/MP4, HEVC in Matroska, HEVC in MPEG-TS demuxing
153 - remove avplay -vismv option, which has not worked for a long time
155 - setsar/setdar filters now support variables in ratio expressions
156 - dar variable in the scale filter now returns the actual DAR (i.e. a * sar)
158 - support for decoding through VDPAU in avconv (the -hwaccel option)
159 - remove mp3_header_(de)compress bitstream filters
160 - stereoscopic 3d metadata handling
161 - png standalone parser
162 - WebP encoding via libwebp
165 - Mirillis FIC video decoder
167 - compand audio filter
171 - av_basename and av_dirname
172 - adobe and limelight publisher authentication in RTMP
173 - VDPAU hardware acceleration through normal hwaccel
178 - ashowinfo audio filter
179 - 24-bit FLAC encoding
180 - audio volume filter
181 - deprecated the avconv -vol option. the volume filter is to be used instead.
182 - multi-channel ALAC encoding up to 7.1
183 - TAK demuxer, parser, and decoder
184 - adaptive frame-level multithreading for H.264
188 - metadata (INFO tag) support in WAV muxer
189 - support for building DLLs using MSVC
190 - remove avserver daemon mode
191 - support building on the Plan 9 operating system
192 - ffv1: support version 1.3
197 - XWD encoder and decoder
198 - Support for fragmentation in the mov/mp4 muxer
199 - ISMV (Smooth Streaming) muxer
200 - CDXL demuxer and decoder
201 - Apple ProRes encoder
202 - Sun Rasterfile Encoder
204 - ID3v2 attached pictures reading and writing
205 - WMA Lossless decoder
207 - RealAudio Lossless decoder
209 - drop support for avconv without libavfilter
210 - add libavresample audio conversion library
211 - audio filters support in libavfilter and avconv
215 - avprobe output is now standard INI or JSON. The old format can still
216 be used with -of old.
217 - Indeo Audio decoder
218 - channelsplit audio filter
219 - RTMPT protocol support
220 - iLBC encoding/decoding via libilbc
221 - Microsoft Screen 1 decoder
223 - audio channel mapping filter
224 - Microsoft ATC Screen decoder
226 - TechSmith Screen Codec 2 decoder
227 - AAC encoding via libfdk-aac
228 - Microsoft Expression Encoder Screen decoder
229 - RTMPS protocol support
230 - RTMPTS protocol support
231 - JPEG 2000 encoding support through OpenJPEG
232 - G.723.1 demuxer and decoder
233 - RTMPE protocol support
234 - RTMPTE protocol support
235 - Canopus Lossless Codec decoder
236 - avconv -shortest option is now per-output file,
237 -pass and -passlogfile are now per-output stream
239 - Microsoft Screen 2 decoder
240 - RTP depacketization of JPEG
241 - Smooth Streaming live segmenter muxer
242 - RTP packetization of JPEG
243 - Opus decoder and encoder using libopus
244 - remove -same_quant, it hasn't worked for years
245 - support for building with MSVC
256 - Automatic thread count based on detection number of (available) CPU cores
257 - Deprecate libpostproc. If desired, the switch --enable-postproc will
258 enable it but it may be removed in a later Libav release.
259 - rv34: frame-level multi-threading
260 - optimized iMDCT transform on x86 using SSE for for mpegaudiodec
266 - Flash Screen Video 2 decoder
267 - ffplay/ffprobe/ffserver renamed to avplay/avprobe/avserver
268 - ffmpeg deprecated, added avconv, which is almost the same for now, except
269 for a few incompatible changes in the options, which will hopefully make them
270 easier to use. The changes are:
271 * The options placement is now strictly enforced! While in theory the
272 options for ffmpeg should be given in [input options] -i INPUT [output
273 options] OUTPUT order, in practice it was possible to give output options
274 before the -i and it mostly worked. Except when it didn't - the behavior was
275 a bit inconsistent. In avconv, it is not possible to mix input and output
276 options. All non-global options are reset after an input or output filename.
277 * All per-file options are now truly per-file - they apply only to the next
278 input or output file and specifying different values for different files
279 will now work properly (notably -ss and -t options).
280 * All per-stream options are now truly per-stream - it is possible to
281 specify which stream(s) should a given option apply to. See the Stream
282 specifiers section in the avconv manual for details.
283 * In ffmpeg some options (like -newvideo/-newaudio/...) are irregular in the
284 sense that they're specified after the output filename instead of before,
285 like all other options. In avconv this irregularity is removed, all options
286 apply to the next input or output file.
287 * -newvideo/-newaudio/-newsubtitle options were removed. Not only were they
288 irregular and highly confusing, they were also redundant. In avconv the -map
289 option will create new streams in the output file and map input streams to
290 them. E.g. avconv -i INPUT -map 0 OUTPUT will create an output stream for
291 each stream in the first input file.
292 * The -map option now has slightly different and more powerful syntax:
293 + Colons (':') are used to separate file index/stream type/stream index
294 instead of dots. Comma (',') is used to separate the sync stream instead
295 of colon.. This is done for consistency with other options.
296 + It's possible to specify stream type. E.g. -map 0:a:2 creates an
297 output stream from the third input audio stream.
298 + Omitting the stream index now maps all the streams of the given type,
299 not just the first. E.g. -map 0:s creates output streams for all the
300 subtitle streams in the first input file.
301 + Since -map can now match multiple streams, negative mappings were
302 introduced. Negative mappings disable some streams from an already
303 defined map. E.g. '-map 0 -map -0:a:1' means 'create output streams for
304 all the stream in the first input file, except for the second audio
306 * There is a new option -c (or -codec) for choosing the decoder/encoder to
307 use, which allows to precisely specify target stream(s) consistently with
308 other options. E.g. -c:v lib264 sets the codec for all video streams, -c:a:0
309 libvorbis sets the codec for the first audio stream and -c copy copies all
310 the streams without reencoding. Old -vcodec/-acodec/-scodec options are now
312 * It is now possible to precisely specify which stream should an AVOption
313 apply to. E.g. -b:v:0 2M sets the bitrate for the first video stream, while
314 -b:a 128k sets the bitrate for all audio streams. Note that the old -ab 128k
315 syntax is deprecated and will stop working soon.
316 * -map_chapters now takes only an input file index and applies to the next
317 output file. This is consistent with how all the other options work.
318 * -map_metadata now takes only an input metadata specifier and applies to
319 the next output file. Output metadata specifier is now part of the option
320 name, similarly to the AVOptions/map/codec feature above.
321 * -metadata can now be used to set metadata on streams and chapters, e.g.
322 -metadata:s:1 language=eng sets the language of the first stream to 'eng'.
323 This made -vlang/-alang/-slang options redundant, so they were removed.
324 * -qscale option now uses stream specifiers and applies to all streams, not
325 just video. I.e. plain -qscale number would now apply to all streams. To get
326 the old behavior, use -qscale:v. Also there is now a shortcut -q for -qscale
327 and -aq is now an alias for -q:a.
328 * -vbsf/-absf/-sbsf options were removed and replaced by a -bsf option which
329 uses stream specifiers. Use -bsf:v/a/s instead of the old options.
330 * -itsscale option now uses stream specifiers, so its argument is only the
332 * -intra option was removed, use -g 0 for the same effect.
333 * -psnr option was removed, use -flags +psnr for the same effect.
334 * -vf option is now an alias to the new -filter option, which uses stream specifiers.
335 * -vframes/-aframes/-dframes options are now aliases to the new -frames option.
336 * -vtag/-atag/-stag options are now aliases to the new -tag option.
338 - Windows Media Image decoder
342 - libcdio-paranoia input device for audio CD grabbing
344 - Apple ProRes decoder
345 - CELT in Ogg demuxing
346 - VC-1 interlaced decoding
347 - lut, lutrgb, and lutyuv filters
350 - Speex encoding via libspeex
351 - 4:2:2 H.264 decoding support
352 - 4:2:2 and 4:4:4 H.264 encoding with libx264
353 - Pulseaudio input device
354 - replacement Indeo 3 decoder
355 - TLS/SSL and HTTPS protocol support
356 - AVOptions API rewritten and documented
357 - most of CODEC_FLAG2_*, some CODEC_FLAG_* and many codec-specific fields in
358 AVCodecContext deprecated. Codec private options should be used instead.
359 - Properly working defaults in libx264 wrapper, support for native presets.
360 - Encrypted OMA files support
361 - Discworld II BMV decoding support
363 - OS X Video Decoder Acceleration (VDA) support
364 - CRI ADX audio format muxer and demuxer
365 - Playstation Portable PMP format demuxer
366 - PCM format support in OMA demuxer
368 - Dxtory capture format decoder
369 - v410 QuickTime uncompressed 4:4:4 10-bit encoder and decoder
371 - Simple segmenting muxer
378 - E-AC-3 audio encoder
379 - ac3enc: add channel coupling support
380 - floating-point sample format support for (E-)AC-3, DCA, AAC, Vorbis decoders
381 - H.264/MPEG frame-level multithreading
382 - av_metadata_* functions renamed to av_dict_* and moved to libavutil
383 - 4:4:4 H.264 decoding support
384 - 10-bit H.264 optimizations for x86
385 - bump libswscale for recently reported ABI break
390 - VP8 frame-level multithreading
391 - NEON optimizations for VP8
392 - removed a lot of deprecated API cruft
393 - FFT and IMDCT optimizations for AVX (Sandy Bridge) processors
395 - SMPTE 302M AES3 audio decoder
396 - ffmpeg no longer quits after the 'q' key is pressed; use 'ctrl+c' instead
397 - 9 bits and 10 bits per sample support in the H.264 decoder
402 - WebM support in Matroska de/muxer
403 - low overhead Ogg muxing
405 - VP8 de/encoding via libvpx
406 - Demuxer for On2's IVF format
407 - Pictor/PC Paint decoder
409 - libfaad2 wrapper removed
410 - DTS-ES extension (XCh) decoding support
412 - RTSP tunneling over HTTP
413 - RTP depacketization of SVQ3
414 - -strict inofficial replaced by -strict unofficial
415 - ffplay -exitonkeydown and -exitonmousedown options added
416 - native GSM / GSM MS decoder
417 - RTP depacketization of QDM2
418 - ANSI/ASCII art playback system
419 - Lego Mindstorms RSO de/muxer
420 - SubRip subtitle file muxer and demuxer
421 - Chinese AVS encoding via libxavs
422 - ffprobe -show_packets option added
423 - RTP packetization of Theora and Vorbis
424 - RTP depacketization of MP4A-LATM
425 - RTP packetization and depacketization of VP8
427 - Apple HTTP Live Streaming demuxer
430 - G.722 ADPCM audio encoder/decoder
433 - frei0r wrapper filter
434 - change crop filter syntax to width:height:x:y
435 - make the crop filter accept parametric expressions
436 - make ffprobe accept AVFormatContext options
439 - Demuxer for Leitch/Harris' VR native stream format (LXF)
440 - RTP depacketization of the X-QT QuickTime format
441 - SAP (Session Announcement Protocol, RFC 2974) muxer and demuxer
443 - ffmpeg -crop* options removed
444 - transpose filter added
445 - ffmpeg -force_key_frames option added
446 - demuxer for receiving raw rtp:// URLs without an SDP description
447 - single stream LATM/LOAS decoder
448 - setpts filter added
449 - Win64 support for optimized x86 assembly functions
450 - MJPEG/AVI1 to JPEG/JFIF bitstream filter
451 - ASS subtitle encoder and decoder
452 - IEC 61937 encapsulation for E-AC-3, TrueHD, DTS-HD (for HDMI passthrough)
453 - overlay filter added
454 - rename aspect filter to setdar, and pixelaspect to setsar
456 - Mobotix .mxg demuxer
457 - frei0r source added
458 - hqdn3d filter added
459 - RTP depacketization of QCELP
461 - gradfun filter added
463 - replace the ocv_smooth filter with a more generic ocv filter
464 - Windows Televison (WTV) demuxer
465 - FFmpeg metadata format muxer and demuxer
466 - SubRip (srt) subtitle decoder
467 - floating-point AC-3 encoder added
469 - ffmpeg -copytb option added
471 - Wing Commander IV movies decoder added
473 - Bink version 'b' audio and video decoder
474 - Bitmap Brothers JV playback system
475 - Apple HTTP Live Streaming protocol handler
476 - sndio support for playback and record
477 - Linux framebuffer input device added
478 - Chronomaster DFA decoder
479 - Mobotix MxPEG decoder
480 - AAC encoding via libvo-aacenc
481 - AMR-WB encoding via libvo-amrwbenc
483 - fieldorder video filter added
488 - PB-frame decoding for H.263
489 - deprecated vhook subsystem removed
490 - deprecated old scaler removed
492 - Alpha channel scaler
494 - RTP packetization of H.263
495 - RTP packetization of AMR
496 - RTP depacketization of Vorbis
497 - CorePNG decoding support
498 - Cook multichannel decoding support
499 - introduced avlanguage helpers in libavformat
500 - 8088flex TMV demuxer and decoder
501 - per-stream language-tags extraction in asfdec
502 - V210 decoder and encoder
503 - remaining GPL parts in AC-3 decoder converted to LGPL
505 - SoX native format muxer and demuxer
506 - AMR-NB decoding/encoding, AMR-WB decoding via OpenCORE libraries
508 - Electronic Arts Madcow decoder
509 - DivX (XSUB) subtitle encoder
510 - nonfree libamr support for AMR-NB/WB decoding/encoding removed
511 - experimental AAC encoder
512 - RTP depacketization of ASF and RTSP from WMS servers
513 - RTMP support in libavformat
514 - noX handling for OPT_BOOL X options
516 - IEC-61937 compatible Muxer
518 - Bluray (PGS) subtitle decoder
519 - LPCM support in MPEG-TS (HDMV RID as found on Blu-ray disks)
521 - Core Audio Format demuxer
523 - MD STUDIO audio demuxer
524 - RF64 support in WAV demuxer
525 - MPEG-4 Audio Lossless Coding (ALS) decoder
526 - -formats option split into -formats, -codecs, -bsfs, and -protocols
528 - CDG demuxer and decoder
530 - Auravision Aura 1 and 2 decoders
531 - Deluxe Paint Animation playback system
533 - Adobe Filmstrip muxer and demuxer
534 - RTP depacketization of H.263
535 - Bink demuxer and audio/video decoders
536 - enable symbol versioning by default for linkers that support it
537 - IFF PBM/ILBM bitmap decoder
540 - RTP depacketization of AMR
546 - Kega Game Video (KGV1) decoder
547 - VorbisComment writing for FLAC, Ogg FLAC and Ogg Speex files
548 - RTP depacketization of Theora
549 - HTTP Digest authentication
550 - RTMP/RTMPT/RTMPS/RTMPE/RTMPTE protocol support via librtmp
551 - Psygnosis YOP demuxer and video decoder
552 - spectral extension support in the E-AC-3 decoder
553 - unsharp video filter
554 - RTP hinting in the mov/3gp/mp4 muxer
555 - Dirac in Ogg demuxing
556 - seek to keyframes in Ogg
557 - 4:2:2 and 4:4:4 Theora decoding
558 - 35% faster VP3/Theora decoding
559 - faster AAC decoding
560 - faster H.264 decoding
561 - RealAudio 1.0 (14.4K) encoder
566 - DV50 AKA DVCPRO50 encoder, decoder, muxer and demuxer
567 - TechSmith Camtasia (TSCC) video decoder
568 - IBM Ultimotion (ULTI) video decoder
569 - Sierra Online audio file demuxer and decoder
570 - Apple QuickDraw (qdrw) video decoder
571 - Creative ADPCM audio decoder (16 bits as well as 8 bits schemes)
572 - Electronic Arts Multimedia (WVE/UV2/etc.) file demuxer
573 - Miro VideoXL (VIXL) video decoder
574 - H.261 video encoder
576 - Nullsoft Video (NSV) file demuxer
577 - Shorten audio decoder
579 - Apple Lossless Audio Codec (ALAC) decoder
580 - Winnov WNV1 video decoder
581 - Autodesk Animator Studio Codec (AASC) decoder
582 - Indeo 2 video decoder
583 - Fraps FPS1 video decoder
584 - Snow video encoder/decoder
585 - Sonic audio encoder/decoder
586 - Vorbis audio decoder
587 - Macromedia ADPCM decoder
588 - Duck TrueMotion 2 video decoder
589 - support for decoding FLX and DTA extensions in FLIC files
590 - H.264 custom quantization matrices support
591 - ffserver fixed, it should now be usable again
593 - Real Cooker audio decoder
594 - TrueSpeech audio decoder
595 - WMA2 audio decoder fixed, now all files should play correctly
596 - RealAudio 14.4 and 28.8 decoders fixed
598 - build system improvements
599 - tabs and trailing whitespace removed from the codebase
600 - CamStudio video decoder
601 - AIFF/AIFF-C audio format, encoding and decoding
602 - ADTS AAC file reading and writing
603 - Creative VOC file reading and writing
604 - American Laser Games multimedia (*.mm) playback system
605 - Zip Motion Blocks Video decoder
606 - improved Theora/VP3 decoder
607 - True Audio (TTA) decoder
608 - AVS demuxer and video decoder
610 - Smacker demuxer and decoder
611 - NuppelVideo/MythTV demuxer and RTjpeg decoder
613 - MPEG-2 intra VLC support
614 - MPEG-2 4:2:2 encoder
615 - Flash Screen Video decoder
617 - Chinese AVS decoder
620 - VC-1/WMV3/WMV9 video decoder
623 - VMware video decoder
626 - WavPack lossless audio decoder
627 - Targa (.TGA) picture decoder
628 - Vorbis audio encoder
629 - Delphine Software .cin demuxer/audio and video decoder
630 - Tiertex .seq demuxer/video decoder
632 - TIFF picture encoder and decoder
633 - GIF picture decoder
634 - Intel Music Coder decoder
635 - Zip Motion Blocks Video encoder
637 - Flash Screen Video encoder
638 - Theora encoding via libtheora
641 - GSM-MS encoder and decoder
643 - DXA demuxer and decoder
645 - Gamecube movie (.THP) playback system
646 - Blackfin optimizations
647 - Interplay C93 demuxer and video decoder
648 - Bethsoft VID demuxer and video decoder
651 - V.Flash PTX decoder
652 - RoQ muxer, RoQ audio encoder
653 - Renderware TXD demuxer and decoder
654 - extern C declarations for C++ removed from headers
655 - sws_flags command line option
659 - OS/2 support removed and restored again
662 - additional SPARC (VIS) optimizations
664 - slice-based parallel H.264 decoding
665 - Monkey's Audio demuxer and decoder
666 - AMV audio and video decoder
668 - H.264 PAFF decoding
669 - Nellymoser ASAO decoder
670 - Beam Software SIFF demuxer and decoder
671 - libvorbis Vorbis decoding removed in favor of native decoder
672 - IntraX8 (J-Frame) subdecoder for WMV2 and VC-1
673 - Ogg (Theora, Vorbis and FLAC) muxer
674 - The "device" muxers and demuxers are now in a new libavdevice library
675 - PC Paintbrush PCX decoder
676 - Sun Rasterfile decoder
677 - TechnoTrend PVA demuxer
678 - Linux Media Labs MPEG-4 (LMLM4) demuxer
679 - AVM2 (Flash 9) SWF muxer
680 - QT variant of IMA ADPCM encoder
682 - iPod/iPhone compatible mp4 muxer
684 - MSN TCP Webcam stream demuxer
685 - RL2 demuxer / decoder
688 - non-recursive Makefiles
690 - MAXIS EA XA (.xa) demuxer / decoder
694 - Electronic Arts CMV decoder
695 - Motion Pixels Video decoder
696 - Motion Pixels MVI demuxer
697 - removed animated GIF decoder/demuxer
698 - D-Cinema audio muxer
699 - Electronic Arts TGV decoder
700 - Apple Lossless Audio Codec (ALAC) encoder
702 - floating point PCM encoder/decoder
704 - DV100 AKA DVCPRO HD decoder and demuxer
705 - E-AC-3 support added to AC-3 decoder
706 - Nellymoser ASAO encoder
707 - ASS and SSA demuxer and muxer
708 - liba52 wrapper removed
709 - SVQ3 watermark decoding support
710 - Speex decoding via libspeex
711 - Electronic Arts TGQ decoder
713 - QCELP / PureVoice decoder
715 - hybrid WavPack support
716 - R3D REDCODE demuxer
717 - ALSA support for playback and record
718 - Electronic Arts TQI decoder
719 - OpenJPEG based JPEG 2000 decoder
720 - NC (NC4600) camera file demuxer
721 - Gopher client support
723 - generic metadata API
728 - DV encoder, DV muxer
729 - Microsoft RLE video decoder
730 - Microsoft Video-1 decoder
731 - Apple Animation (RLE) decoder
732 - Apple Graphics (SMC) decoder
733 - Apple Video (RPZA) decoder
735 - Sega FILM (CPK) file demuxer
736 - Westwood multimedia support (VQA & AUD files)
737 - Id Quake II CIN playback support
739 - FLIC playback support
740 - RealVideo 2.0 (RV20) decoder
741 - Duck TrueMotion v1 (DUCK) video decoder
742 - Sierra VMD demuxer and video decoder
743 - MSZH and ZLIB decoder support
747 - rate distortion optimal cbp support
748 - rate distorted optimal ac prediction for MPEG-4
749 - rate distorted optimal lambda->qp support
750 - AAC encoding with libfaac
751 - Sunplus JPEG codec (SP5X) support
752 - use Lagrange multiplier instead of QP for ratecontrol
753 - Theora/VP3 decoding support
754 - XA and ADX ADPCM codecs
755 - export MPEG-2 active display area / pan scan
756 - Add support for configuring with IBM XLC
757 - floating point AAN DCT
758 - initial support for zygo video (not complete)
760 - new audio/video parser API
762 - av_read_frame() and av_seek_frame() support
763 - missing last frame fixes
764 - seek by mouse in ffplay
765 - noise reduction of DCT coefficients
766 - H.263 OBMC & 4MV support
767 - H.263 alternative inter vlc support
769 - H.263 slice structured mode
770 - interlaced DCT support for MPEG-2 encoding
771 - stuffing to stay above min_bitrate
772 - MB type & QP visualization
773 - frame stepping for ffplay
774 - interlaced motion estimation
775 - alternate scantable support
776 - SVCD scan offset support
779 - quantizer noise shaping
780 - G.726 ADPCM audio codec
782 - multithreaded/SMP motion estimation
783 - multithreaded/SMP encoding for MPEG-1/MPEG-2/MPEG-4/H.263
784 - multithreaded/SMP decoding for MPEG-2
786 - Metrowerks CodeWarrior suppport
787 - H.263+ custom pcf support
788 - nicer output for 'ffmpeg -formats'
790 - SGI image format, encoding and decoding
791 - H.264 loop filter support
792 - H.264 CABAC support
793 - nicer looking arrows for the motion vector visualization
794 - improved VCD support
795 - audio timestamp drift compensation
796 - MPEG-2 YUV 422/444 support
797 - polyphase kaiser windowed sinc and blackman nuttall windowed sinc audio resample
798 - better image scaling
800 - correctly interleave packets during encoding
801 - VIS optimized motion compensation
802 - intra_dc_precision>0 encoding support
803 - support reuse of motion vectors/MB types/field select values of the source video
804 - more accurate deblock filter
806 - many optimizations and bugfixes
807 - FunCom ISS audio file demuxer and according ADPCM decoding
812 - MPEG-2 video encoding (Michael)
813 - Id RoQ playback subsystem (Mike Melanson and Tim Ferguson)
814 - Wing Commander III Movie (.mve) file playback subsystem (Mike Melanson
816 - Xan DPCM audio decoder (Mario Brito)
817 - Interplay MVE playback subsystem (Mike Melanson)
818 - Duck DK3 and DK4 ADPCM audio decoders (Mike Melanson)
823 - RealAudio 1.0 (14_4) and 2.0 (28_8) native decoders. Author unknown, code from mplayerhq
824 (originally from public domain player for Amiga at http://www.honeypot.net/audio)
825 - current version now also compiles with older GCC (Fabrice)
826 - 4X multimedia playback system including 4xm file demuxer (Mike
827 Melanson), and 4X video and audio codecs (Michael)
828 - Creative YUV (CYUV) decoder (Mike Melanson)
829 - FFV1 codec (our very simple lossless intra only codec, compresses much better
830 than HuffYUV) (Michael)
831 - ASV1 (Asus), H.264, Intel indeo3 codecs have been added (various)
832 - tiny PNG encoder and decoder, tiny GIF decoder, PAM decoder (PPM with
833 alpha support), JPEG YUV colorspace support. (Fabrice Bellard)
834 - ffplay has been replaced with a newer version which uses SDL (optionally)
835 for multiplatform support (Fabrice)
836 - Sorenson Version 3 codec (SVQ3) support has been added (decoding only) - donated
838 - AMR format has been added (Johannes Carlsson)
839 - 3GP support has been added (Johannes Carlsson)
840 - VP3 codec has been added (Mike Melanson)
841 - more MPEG-1/2 fixes
842 - better multiplatform support, MS Visual Studio fixes (various)
843 - AltiVec optimizations (Magnus Damn and others)
844 - SH4 processor support has been added (BERO)
845 - new public interfaces (avcodec_get_pix_fmt) (Roman Shaposhnick)
846 - VOB streaming support (Brian Foley)
847 - better MP3 autodetection (Andriy Rysin)
848 - qpel encoding (Michael)
849 - 4mv+b frames encoding finally fixed (Michael)
850 - chroma ME (Michael)
851 - 5 comparison functions for ME (Michael)
852 - B-frame encoding speedup (Michael)
853 - WMV2 codec (unfinished - Michael)
854 - user specified diamond size for EPZS (Michael)
855 - Playstation STR playback subsystem, still experimental (Mike and Michael)
856 - ASV2 codec (Michael)
857 - CLJR decoder (Alex)
859 .. And lots more new enhancements and fixes.
864 - completely new integer only MPEG audio layer 1/2/3 decoder rewritten
866 - Recoded DCT and motion vector search with gcc (no longer depends on nasm)
867 - fix quantization bug in AC3 encoder
868 - added PCM codecs and format. Corrected WAV/AVI/ASF PCM issues
869 - added prototype ffplay program
870 - added GOB header parsing on H.263/H.263+ decoder (Juanjo)
871 - bug fix on MCBPC tables of H.263 (Juanjo)
872 - bug fix on DC coefficients of H.263 (Juanjo)
873 - added Advanced Prediction Mode on H.263/H.263+ decoder (Juanjo)
874 - now we can decode H.263 streams found in QuickTime files (Juanjo)
875 - now we can decode H.263 streams found in VIVO v1 files(Juanjo)
876 - preliminary RTP "friendly" mode for H.263/H.263+ coding. (Juanjo)
877 - added GOB header for H.263/H.263+ coding on RTP mode (Juanjo)
878 - now H.263 picture size is returned on the first decoded frame (Juanjo)
879 - added first regression tests
880 - added MPEG-2 TS demuxer
881 - new demux API for libav
882 - more accurate and faster IDCT (Michael)
883 - faster and entropy-controlled motion search (Michael)
884 - two pass video encoding (Michael)
885 - new video rate control (Michael)
886 - added MSMPEG4V1, MSMPEGV2 and WMV1 support (Michael)
887 - great performance improvement of video encoders and decoders (Michael)
888 - new and faster bit readers and vlc parsers (Michael)
889 - high quality encoding mode: tries all macroblock/VLC types (Michael)
890 - added DV video decoder
891 - preliminary RTP/RTSP support in ffserver and libavformat
892 - H.263+ AIC decoding/encoding support (Juanjo)
893 - VCD MPEG-PS mode (Juanjo)
894 - PSNR stuff (Juanjo)
895 - simple stats output (Juanjo)
896 - 16-bit and 15-bit RGB/BGR/GBR support (Bisqwit)
901 - some header fixes (Zdenek Kabelac <kabi at informatics.muni.cz>)
902 - many MMX optimizations (Nick Kurshev <nickols_k at mail.ru>)
903 - added configure system (actually a small shell script)
904 - added MPEG audio layer 1/2/3 decoding using LGPL'ed mpglib by
905 Michael Hipp (temporary solution - waiting for integer only
907 - fixed VIDIOCSYNC interrupt
908 - added Intel H.263 decoding support ('I263' AVI fourCC)
909 - added Real Video 1.0 decoding (needs further testing)
910 - simplified image formats again. Added PGM format (=grey
911 pgm). Renamed old PGM to PGMYUV.
912 - fixed msmpeg4 slice issues (tell me if you still find problems)
913 - fixed OpenDivX bugs with newer versions (added VOL header decoding)
914 - added support for MPlayer interface
915 - added macroblock skip optimization
916 - added MJPEG decoder
917 - added mmx/mmxext IDCT from libmpeg2
918 - added pgmyuvpipe, ppm, and ppm_pipe formats (original patch by Celer
919 <celer at shell.scrypt.net>)
920 - added pixel format conversion layer (e.g. for MJPEG or PPM)
921 - added deinterlacing option
923 - MPEG-4 vol header fixes (Jonathan Marsden <snmjbm at pacbell.net>)
924 - ARM optimizations (Lionel Ulmer <lionel.ulmer at free.fr>).
925 - Windows porting of file converter
926 - added MJPEG raw format (input/ouput)
927 - added JPEG image format support (input/output)
932 - fixed some std header definitions (Bjorn Lindgren
933 <bjorn.e.lindgren at telia.com>).
934 - added MPEG demuxer (MPEG-1 and 2 compatible).
936 - added prototype RM demuxer
937 - added AC3 decoding (done with libac3 by Aaron Holtzman)
938 - added decoding codec parameter guessing (.e.g. for MPEG, because the
939 header does not include them)
940 - fixed header generation in MPEG-1, AVI and ASF muxer: wmplayer can now
941 play them (only tested video)
942 - fixed H.263 white bug
943 - fixed phase rounding in img resample filter
944 - add MMX code for polyphase img resample filter
945 - added CPU autodetection
946 - added generic title/author/copyright/comment string handling (ASF and RM
948 - added SWF demux to extract MP3 track (not usable yet because no MP3
950 - added fractional frame rate support
951 - codecs are no longer searched by read_header() (should fix ffserver
957 - BGR24 patch (initial patch by Jeroen Vreeken <pe1rxq at amsat.org>)
958 - fixed raw yuv output
959 - added motion rounding support in MPEG-4
960 - fixed motion bug rounding in MSMPEG4
961 - added B-frame handling in video core
962 - added full MPEG-1 decoding support
963 - added partial (frame only) MPEG-2 support
964 - changed the FOURCC code for H.263 to "U263" to be able to see the
965 +AVI/H.263 file with the UB Video H.263+ decoder. MPlayer works with
966 this +codec ;) (JuanJo).
967 - Halfpel motion estimation after MB type selection (JuanJo)
968 - added pgm and .Y.U.V output format
969 - suppressed 'img:' protocol. Simply use: /tmp/test%d.[pgm|Y] as input or
971 - added pgmpipe I/O format (original patch from Martin Aumueller
972 <lists at reserv.at>, but changed completely since we use a format
973 instead of a protocol)
978 - added H.263/MPEG-4/MSMPEG4 decoding support. MPEG-4 decoding support
979 (for OpenDivX) is almost complete: 8x8 MVs and rounding are
980 missing. MSMPEG4 support is complete.
981 - added prototype MPEG-1 decoder. Only I- and P-frames handled yet (it
982 can decode ffmpeg MPEGs :-)).
983 - added libavcodec API documentation (see apiexample.c).
984 - fixed image polyphase bug (the bottom of some images could be
986 - added support for non clipped motion vectors (decoding only)
987 and image sizes non-multiple of 16
988 - added support for AC prediction (decoding only)
989 - added file overwrite confirmation (can be disabled with -y)
990 - added custom size picture to H.263 using H.263+ (Juanjo)
995 - added MSMPEG4 (aka DivX) compatible encoder. Changed default codec
996 of AVI and ASF to DIV3.
997 - added -me option to set motion estimation method
998 (default=log). suppressed redundant -hq option.
999 - added options -acodec and -vcodec to force a given codec (useful for
1002 - improved dct_quantize speed
1003 - factorized some motion estimation code
1008 - removing grab code from ffserver and moved it to ffmpeg. Added
1009 multistream support to ffmpeg.
1010 - added timeshifting support for live feeds (option ?date=xxx in the
1012 - added high quality image resize code with polyphase filter (need
1013 mmx/see optimization). Enable multiple image size support in ffserver.
1014 - added multi live feed support in ffserver
1015 - suppressed master feature from ffserver (it should be done with an
1016 external program which opens the .ffm url and writes it to another
1018 - added preliminary support for video stream parsing (WAV and AVI half
1019 done). Added proper support for audio/video file conversion in
1021 - added preliminary support for video file sending from ffserver
1022 - redesigning I/O subsystem: now using URL based input and output
1024 - added WAV format support
1025 - added "tty user interface" to ffmpeg to stop grabbing gracefully
1026 - added MMX/SSE optimizations to SAD (Sums of Absolutes Differences)
1027 (Juan J. Sierralta P. a.k.a. "Juanjo" <juanjo at atmlab.utfsm.cl>)
1028 - added MMX DCT from mpeg2_movie 1.5 (Juanjo)
1029 - added new motion estimation algorithms, log and phods (Juanjo)
1030 - changed directories: libav for format handling, libavcodec for
1036 - added stereo in MPEG audio encoder
1041 - added 'high quality' mode which use motion vectors. It can be used in
1042 real time at low resolution.
1043 - fixed rounding problems which caused quality problems at high
1044 bitrates and large GOP size
1047 version 0.3.2: small fixes
1053 version 0.3.1: added avi/divx support
1056 - added MPEG-4 codec compatible with OpenDivX. It is based on the H.263 codec
1057 - added sound for flash format (not tested)
1060 version 0.3: initial public release