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
11 - Apple Pixlet decoder
12 - The x86 assembler default switched from yasm to nasm, pass
13 --x86asmexe=yasm to configure to restore the old behavior.
18 - aliases and defaults for Ogg subtypes (opus, spx)
19 - HEVC/H.265 RTP payload format (draft v6) packetizer and depacketizer
20 - avplay now exits by default at the end of playback
21 - XCB-based screen-grabber
22 - creating DASH compatible fragmented MP4, MPEG-DASH segmenting muxer
23 - H.261 RTP payload format (RFC 4587) depacketizer and experimental packetizer
26 - OpenH264 encoder wrapper
27 - Support DNx100 (960x720@8)
28 - Direct3D11-accelerated decoding
29 - DXVA2-accelerated HEVC decoding
30 - AAC ELD 480 decoding
31 - Intel QSV-accelerated H.264 decoding
32 - DSS SP decoder and DSS demuxer
33 - RTP depacketizer for AC3 payload format (RFC 4184)
34 - RTP depacketizer for loss tolerant payload format for MP3 audio (RFC 5219)
35 - RTP depacketizer for DV (RFC 6469)
37 - RTP depacketization of T.140 text (RFC 4103)
38 - VP9 RTP payload format (draft 0) experimental depacketizer
40 - DTS lossless extension (XLL) decoding (not lossless, disabled by default)
41 - Intel QSV-accelerated H.264 encoding
42 - MMAL-accelerated H.264 decoding
43 - DTS decoding through libdcadec
44 - Canopus HQ/HQA decoder
45 - Automatically rotate videos based on metadata in avconv
46 - improved Quickdraw compatibility
47 - NVIDIA NVENC-accelerated H.264 and HEVC encoding support
48 - Multipart JPEG demuxer
49 - Support the extended vp9 profiles in the libvpx wrapper
50 - Hap decoder and encoder
51 - DirectDraw Surface image/texture decoder
52 - rewritten ASF demuxer
53 - Go2Meeting decoding support
54 - Intel QSV-accelerated MPEG-2 video and HEVC encoding
55 - bitstream filter for converting HEVC from MP4 to Annex B
56 - Intel QSV-accelerated MPEG-2 video and HEVC decoding
57 - Support DNx100 (1440x1080@8)
59 - Screenpresso SPV1 decoding
60 - zero-copy Intel QSV transcoding in avconv
61 - libkvazaar HEVC encoder
62 - innoHeim/Rsupport Screen Capture Codec decoder
63 - support encoding 16-bit RLE SGI images
64 - support Apple AVFoundation video capture
65 - G.723.1 muxer and encoder
67 - VAAPI-accelerated format conversion and scaling
68 - libnpp/CUDA-accelerated format conversion and scaling
69 - VAAPI-accelerate H.264/HEVC/MJPEG encoding
70 - Generic OpenMAX IL encoder with support for Raspberry Pi
71 - MMAL-accelerated MPEG-2 and VC-1 decoding
74 - Duck TrueMotion 2.0 Real Time decoder
75 - Intel QSV video scaling and deinterlacing filter
76 - Support MOV with multiple sample description tables
77 - OpenH264 decoder wrapper
78 - Removed the legacy X11 screen grabber, use XCB instead
79 - HDCD decoding filter through libhdcd
84 - shuffleplanes filter
85 - replaygain data export
86 - Alias PIX image encoder and decoder
87 - BRender PIX image decoder
88 - Amazing Studio PAF playback support
90 - BMP standalone parser
91 - OpenEXR image decoder
92 - support encoding and decoding 4-channel SGI images
93 - support decoding 16-bit RLE SGI images
95 - LucasArts SMUSH SANM video decoder
96 - LucasArts SMUSH VIMA audio decoder (ADPCM)
97 - LucasArts SMUSH demuxer
98 - MP2 encoding via TwoLAME
100 - Silicon Graphics RLE 8-bit video decoder
101 - Silicon Graphics Motion Video Compressor 1 & 2 decoder
102 - Silicon Graphics Movie demuxer
103 - On2 AVC (Audio for Video) decoder
104 - support for decoding through DXVA2 in avconv
105 - libbs2b-based stereo-to-binaural audio filter
106 - native Opus decoder
107 - display matrix export and rotation API
108 - drop avserver, it was unmaintained for years and largely broken
110 - request Icecast metadata by default
111 - support for using metadata in stream specifiers in avtools
112 - Matroska 3D support
117 - support ID3v2 tags in ASF files
118 - reference-counting for AVFrame and AVPacket data
119 - avconv now fails when input options are used for output file
121 - avconv options -filter_script and -filter_complex_script, which allow a
122 filtergraph description to be read from a file
123 - uniform options syntax across all filters
126 - asetpts filter (same as setpts, but for audio)
127 - trim and atrim filters
128 - avconv -t and -ss (output-only) options are now sample-accurate when
130 - Matroska muxer can now put the index at the beginning of the file.
131 - avconv -deinterlace option removed, the yadif filter should be used instead
132 - Apple Intermediate Codec decoder
133 - Escape 130 video decoder
134 - support for slice multithreading in libavfilter
135 - VC-1 interlaced B-frame support
136 - support for WavPack muxing (raw and in Matroska)
138 - WavPack encoding through libwavpack
139 - Added the -n parameter to avconv
141 - when transcoding with avconv (i.e. not streamcopying), -ss is now accurate
142 even when used as an input option. Previous behavior can be restored with
143 the -noaccurate_seek option.
144 - avconv -t option can now be used for inputs, to limit the duration of
145 data read from an input file
146 - Voxware MetaSound decoder
148 - Error Resilient AAC syntax (ER AAC LC) decoding
149 - Low Delay AAC (ER AAC LD) decoding
150 - mux chapters in ASF files
151 - Opus in Ogg demuxing
152 - Enhanced Low Delay AAC (ER AAC ELD) decoding (no LD SBR support)
154 - HNM version 4 demuxer and video decoder
156 - raw HEVC, HEVC in MOV/MP4, HEVC in Matroska, HEVC in MPEG-TS demuxing
157 - remove avplay -vismv option, which has not worked for a long time
159 - setsar/setdar filters now support variables in ratio expressions
160 - dar variable in the scale filter now returns the actual DAR (i.e. a * sar)
162 - support for decoding through VDPAU in avconv (the -hwaccel option)
163 - remove mp3_header_(de)compress bitstream filters
164 - stereoscopic 3d metadata handling
165 - png standalone parser
166 - WebP encoding via libwebp
169 - Mirillis FIC video decoder
171 - compand audio filter
175 - av_basename and av_dirname
176 - adobe and limelight publisher authentication in RTMP
177 - VDPAU hardware acceleration through normal hwaccel
182 - ashowinfo audio filter
183 - 24-bit FLAC encoding
184 - audio volume filter
185 - deprecated the avconv -vol option. the volume filter is to be used instead.
186 - multi-channel ALAC encoding up to 7.1
187 - TAK demuxer, parser, and decoder
188 - adaptive frame-level multithreading for H.264
192 - metadata (INFO tag) support in WAV muxer
193 - support for building DLLs using MSVC
194 - remove avserver daemon mode
195 - support building on the Plan 9 operating system
196 - ffv1: support version 1.3
201 - XWD encoder and decoder
202 - Support for fragmentation in the mov/mp4 muxer
203 - ISMV (Smooth Streaming) muxer
204 - CDXL demuxer and decoder
205 - Apple ProRes encoder
206 - Sun Rasterfile Encoder
208 - ID3v2 attached pictures reading and writing
209 - WMA Lossless decoder
211 - RealAudio Lossless decoder
213 - drop support for avconv without libavfilter
214 - add libavresample audio conversion library
215 - audio filters support in libavfilter and avconv
219 - avprobe output is now standard INI or JSON. The old format can still
220 be used with -of old.
221 - Indeo Audio decoder
222 - channelsplit audio filter
223 - RTMPT protocol support
224 - iLBC encoding/decoding via libilbc
225 - Microsoft Screen 1 decoder
227 - audio channel mapping filter
228 - Microsoft ATC Screen decoder
230 - TechSmith Screen Codec 2 decoder
231 - AAC encoding via libfdk-aac
232 - Microsoft Expression Encoder Screen decoder
233 - RTMPS protocol support
234 - RTMPTS protocol support
235 - JPEG 2000 encoding support through OpenJPEG
236 - G.723.1 demuxer and decoder
237 - RTMPE protocol support
238 - RTMPTE protocol support
239 - Canopus Lossless Codec decoder
240 - avconv -shortest option is now per-output file,
241 -pass and -passlogfile are now per-output stream
243 - Microsoft Screen 2 decoder
244 - RTP depacketization of JPEG
245 - Smooth Streaming live segmenter muxer
246 - RTP packetization of JPEG
247 - Opus decoder and encoder using libopus
248 - remove -same_quant, it hasn't worked for years
249 - support for building with MSVC
260 - Automatic thread count based on detection number of (available) CPU cores
261 - Deprecate libpostproc. If desired, the switch --enable-postproc will
262 enable it but it may be removed in a later Libav release.
263 - rv34: frame-level multi-threading
264 - optimized iMDCT transform on x86 using SSE for for mpegaudiodec
270 - Flash Screen Video 2 decoder
271 - ffplay/ffprobe/ffserver renamed to avplay/avprobe/avserver
272 - ffmpeg deprecated, added avconv, which is almost the same for now, except
273 for a few incompatible changes in the options, which will hopefully make them
274 easier to use. The changes are:
275 * The options placement is now strictly enforced! While in theory the
276 options for ffmpeg should be given in [input options] -i INPUT [output
277 options] OUTPUT order, in practice it was possible to give output options
278 before the -i and it mostly worked. Except when it didn't - the behavior was
279 a bit inconsistent. In avconv, it is not possible to mix input and output
280 options. All non-global options are reset after an input or output filename.
281 * All per-file options are now truly per-file - they apply only to the next
282 input or output file and specifying different values for different files
283 will now work properly (notably -ss and -t options).
284 * All per-stream options are now truly per-stream - it is possible to
285 specify which stream(s) should a given option apply to. See the Stream
286 specifiers section in the avconv manual for details.
287 * In ffmpeg some options (like -newvideo/-newaudio/...) are irregular in the
288 sense that they're specified after the output filename instead of before,
289 like all other options. In avconv this irregularity is removed, all options
290 apply to the next input or output file.
291 * -newvideo/-newaudio/-newsubtitle options were removed. Not only were they
292 irregular and highly confusing, they were also redundant. In avconv the -map
293 option will create new streams in the output file and map input streams to
294 them. E.g. avconv -i INPUT -map 0 OUTPUT will create an output stream for
295 each stream in the first input file.
296 * The -map option now has slightly different and more powerful syntax:
297 + Colons (':') are used to separate file index/stream type/stream index
298 instead of dots. Comma (',') is used to separate the sync stream instead
299 of colon.. This is done for consistency with other options.
300 + It's possible to specify stream type. E.g. -map 0:a:2 creates an
301 output stream from the third input audio stream.
302 + Omitting the stream index now maps all the streams of the given type,
303 not just the first. E.g. -map 0:s creates output streams for all the
304 subtitle streams in the first input file.
305 + Since -map can now match multiple streams, negative mappings were
306 introduced. Negative mappings disable some streams from an already
307 defined map. E.g. '-map 0 -map -0:a:1' means 'create output streams for
308 all the stream in the first input file, except for the second audio
310 * There is a new option -c (or -codec) for choosing the decoder/encoder to
311 use, which allows to precisely specify target stream(s) consistently with
312 other options. E.g. -c:v lib264 sets the codec for all video streams, -c:a:0
313 libvorbis sets the codec for the first audio stream and -c copy copies all
314 the streams without reencoding. Old -vcodec/-acodec/-scodec options are now
316 * It is now possible to precisely specify which stream should an AVOption
317 apply to. E.g. -b:v:0 2M sets the bitrate for the first video stream, while
318 -b:a 128k sets the bitrate for all audio streams. Note that the old -ab 128k
319 syntax is deprecated and will stop working soon.
320 * -map_chapters now takes only an input file index and applies to the next
321 output file. This is consistent with how all the other options work.
322 * -map_metadata now takes only an input metadata specifier and applies to
323 the next output file. Output metadata specifier is now part of the option
324 name, similarly to the AVOptions/map/codec feature above.
325 * -metadata can now be used to set metadata on streams and chapters, e.g.
326 -metadata:s:1 language=eng sets the language of the first stream to 'eng'.
327 This made -vlang/-alang/-slang options redundant, so they were removed.
328 * -qscale option now uses stream specifiers and applies to all streams, not
329 just video. I.e. plain -qscale number would now apply to all streams. To get
330 the old behavior, use -qscale:v. Also there is now a shortcut -q for -qscale
331 and -aq is now an alias for -q:a.
332 * -vbsf/-absf/-sbsf options were removed and replaced by a -bsf option which
333 uses stream specifiers. Use -bsf:v/a/s instead of the old options.
334 * -itsscale option now uses stream specifiers, so its argument is only the
336 * -intra option was removed, use -g 0 for the same effect.
337 * -psnr option was removed, use -flags +psnr for the same effect.
338 * -vf option is now an alias to the new -filter option, which uses stream specifiers.
339 * -vframes/-aframes/-dframes options are now aliases to the new -frames option.
340 * -vtag/-atag/-stag options are now aliases to the new -tag option.
342 - Windows Media Image decoder
346 - libcdio-paranoia input device for audio CD grabbing
348 - Apple ProRes decoder
349 - CELT in Ogg demuxing
350 - VC-1 interlaced decoding
351 - lut, lutrgb, and lutyuv filters
354 - Speex encoding via libspeex
355 - 4:2:2 H.264 decoding support
356 - 4:2:2 and 4:4:4 H.264 encoding with libx264
357 - Pulseaudio input device
358 - replacement Indeo 3 decoder
359 - TLS/SSL and HTTPS protocol support
360 - AVOptions API rewritten and documented
361 - most of CODEC_FLAG2_*, some CODEC_FLAG_* and many codec-specific fields in
362 AVCodecContext deprecated. Codec private options should be used instead.
363 - Properly working defaults in libx264 wrapper, support for native presets.
364 - Encrypted OMA files support
365 - Discworld II BMV decoding support
367 - OS X Video Decoder Acceleration (VDA) support
368 - CRI ADX audio format muxer and demuxer
369 - Playstation Portable PMP format demuxer
370 - PCM format support in OMA demuxer
372 - Dxtory capture format decoder
373 - v410 QuickTime uncompressed 4:4:4 10-bit encoder and decoder
375 - Simple segmenting muxer
382 - E-AC-3 audio encoder
383 - ac3enc: add channel coupling support
384 - floating-point sample format support for (E-)AC-3, DCA, AAC, Vorbis decoders
385 - H.264/MPEG frame-level multithreading
386 - av_metadata_* functions renamed to av_dict_* and moved to libavutil
387 - 4:4:4 H.264 decoding support
388 - 10-bit H.264 optimizations for x86
389 - bump libswscale for recently reported ABI break
394 - VP8 frame-level multithreading
395 - NEON optimizations for VP8
396 - removed a lot of deprecated API cruft
397 - FFT and IMDCT optimizations for AVX (Sandy Bridge) processors
399 - SMPTE 302M AES3 audio decoder
400 - ffmpeg no longer quits after the 'q' key is pressed; use 'ctrl+c' instead
401 - 9 bits and 10 bits per sample support in the H.264 decoder
406 - WebM support in Matroska de/muxer
407 - low overhead Ogg muxing
409 - VP8 de/encoding via libvpx
410 - Demuxer for On2's IVF format
411 - Pictor/PC Paint decoder
413 - libfaad2 wrapper removed
414 - DTS-ES extension (XCh) decoding support
416 - RTSP tunneling over HTTP
417 - RTP depacketization of SVQ3
418 - -strict inofficial replaced by -strict unofficial
419 - ffplay -exitonkeydown and -exitonmousedown options added
420 - native GSM / GSM MS decoder
421 - RTP depacketization of QDM2
422 - ANSI/ASCII art playback system
423 - Lego Mindstorms RSO de/muxer
424 - SubRip subtitle file muxer and demuxer
425 - Chinese AVS encoding via libxavs
426 - ffprobe -show_packets option added
427 - RTP packetization of Theora and Vorbis
428 - RTP depacketization of MP4A-LATM
429 - RTP packetization and depacketization of VP8
431 - Apple HTTP Live Streaming demuxer
434 - G.722 ADPCM audio encoder/decoder
437 - frei0r wrapper filter
438 - change crop filter syntax to width:height:x:y
439 - make the crop filter accept parametric expressions
440 - make ffprobe accept AVFormatContext options
443 - Demuxer for Leitch/Harris' VR native stream format (LXF)
444 - RTP depacketization of the X-QT QuickTime format
445 - SAP (Session Announcement Protocol, RFC 2974) muxer and demuxer
447 - ffmpeg -crop* options removed
448 - transpose filter added
449 - ffmpeg -force_key_frames option added
450 - demuxer for receiving raw rtp:// URLs without an SDP description
451 - single stream LATM/LOAS decoder
452 - setpts filter added
453 - Win64 support for optimized x86 assembly functions
454 - MJPEG/AVI1 to JPEG/JFIF bitstream filter
455 - ASS subtitle encoder and decoder
456 - IEC 61937 encapsulation for E-AC-3, TrueHD, DTS-HD (for HDMI passthrough)
457 - overlay filter added
458 - rename aspect filter to setdar, and pixelaspect to setsar
460 - Mobotix .mxg demuxer
461 - frei0r source added
462 - hqdn3d filter added
463 - RTP depacketization of QCELP
465 - gradfun filter added
467 - replace the ocv_smooth filter with a more generic ocv filter
468 - Windows Televison (WTV) demuxer
469 - FFmpeg metadata format muxer and demuxer
470 - SubRip (srt) subtitle decoder
471 - floating-point AC-3 encoder added
473 - ffmpeg -copytb option added
475 - Wing Commander IV movies decoder added
477 - Bink version 'b' audio and video decoder
478 - Bitmap Brothers JV playback system
479 - Apple HTTP Live Streaming protocol handler
480 - sndio support for playback and record
481 - Linux framebuffer input device added
482 - Chronomaster DFA decoder
483 - Mobotix MxPEG decoder
484 - AAC encoding via libvo-aacenc
485 - AMR-WB encoding via libvo-amrwbenc
487 - fieldorder video filter added
492 - PB-frame decoding for H.263
493 - deprecated vhook subsystem removed
494 - deprecated old scaler removed
496 - Alpha channel scaler
498 - RTP packetization of H.263
499 - RTP packetization of AMR
500 - RTP depacketization of Vorbis
501 - CorePNG decoding support
502 - Cook multichannel decoding support
503 - introduced avlanguage helpers in libavformat
504 - 8088flex TMV demuxer and decoder
505 - per-stream language-tags extraction in asfdec
506 - V210 decoder and encoder
507 - remaining GPL parts in AC-3 decoder converted to LGPL
509 - SoX native format muxer and demuxer
510 - AMR-NB decoding/encoding, AMR-WB decoding via OpenCORE libraries
512 - Electronic Arts Madcow decoder
513 - DivX (XSUB) subtitle encoder
514 - nonfree libamr support for AMR-NB/WB decoding/encoding removed
515 - experimental AAC encoder
516 - RTP depacketization of ASF and RTSP from WMS servers
517 - RTMP support in libavformat
518 - noX handling for OPT_BOOL X options
520 - IEC-61937 compatible Muxer
522 - Bluray (PGS) subtitle decoder
523 - LPCM support in MPEG-TS (HDMV RID as found on Blu-ray disks)
525 - Core Audio Format demuxer
527 - MD STUDIO audio demuxer
528 - RF64 support in WAV demuxer
529 - MPEG-4 Audio Lossless Coding (ALS) decoder
530 - -formats option split into -formats, -codecs, -bsfs, and -protocols
532 - CDG demuxer and decoder
534 - Auravision Aura 1 and 2 decoders
535 - Deluxe Paint Animation playback system
537 - Adobe Filmstrip muxer and demuxer
538 - RTP depacketization of H.263
539 - Bink demuxer and audio/video decoders
540 - enable symbol versioning by default for linkers that support it
541 - IFF PBM/ILBM bitmap decoder
544 - RTP depacketization of AMR
550 - Kega Game Video (KGV1) decoder
551 - VorbisComment writing for FLAC, Ogg FLAC and Ogg Speex files
552 - RTP depacketization of Theora
553 - HTTP Digest authentication
554 - RTMP/RTMPT/RTMPS/RTMPE/RTMPTE protocol support via librtmp
555 - Psygnosis YOP demuxer and video decoder
556 - spectral extension support in the E-AC-3 decoder
557 - unsharp video filter
558 - RTP hinting in the mov/3gp/mp4 muxer
559 - Dirac in Ogg demuxing
560 - seek to keyframes in Ogg
561 - 4:2:2 and 4:4:4 Theora decoding
562 - 35% faster VP3/Theora decoding
563 - faster AAC decoding
564 - faster H.264 decoding
565 - RealAudio 1.0 (14.4K) encoder
570 - DV50 AKA DVCPRO50 encoder, decoder, muxer and demuxer
571 - TechSmith Camtasia (TSCC) video decoder
572 - IBM Ultimotion (ULTI) video decoder
573 - Sierra Online audio file demuxer and decoder
574 - Apple QuickDraw (qdrw) video decoder
575 - Creative ADPCM audio decoder (16 bits as well as 8 bits schemes)
576 - Electronic Arts Multimedia (WVE/UV2/etc.) file demuxer
577 - Miro VideoXL (VIXL) video decoder
578 - H.261 video encoder
580 - Nullsoft Video (NSV) file demuxer
581 - Shorten audio decoder
583 - Apple Lossless Audio Codec (ALAC) decoder
584 - Winnov WNV1 video decoder
585 - Autodesk Animator Studio Codec (AASC) decoder
586 - Indeo 2 video decoder
587 - Fraps FPS1 video decoder
588 - Snow video encoder/decoder
589 - Sonic audio encoder/decoder
590 - Vorbis audio decoder
591 - Macromedia ADPCM decoder
592 - Duck TrueMotion 2 video decoder
593 - support for decoding FLX and DTA extensions in FLIC files
594 - H.264 custom quantization matrices support
595 - ffserver fixed, it should now be usable again
597 - Real Cooker audio decoder
598 - TrueSpeech audio decoder
599 - WMA2 audio decoder fixed, now all files should play correctly
600 - RealAudio 14.4 and 28.8 decoders fixed
602 - build system improvements
603 - tabs and trailing whitespace removed from the codebase
604 - CamStudio video decoder
605 - AIFF/AIFF-C audio format, encoding and decoding
606 - ADTS AAC file reading and writing
607 - Creative VOC file reading and writing
608 - American Laser Games multimedia (*.mm) playback system
609 - Zip Motion Blocks Video decoder
610 - improved Theora/VP3 decoder
611 - True Audio (TTA) decoder
612 - AVS demuxer and video decoder
614 - Smacker demuxer and decoder
615 - NuppelVideo/MythTV demuxer and RTjpeg decoder
617 - MPEG-2 intra VLC support
618 - MPEG-2 4:2:2 encoder
619 - Flash Screen Video decoder
621 - Chinese AVS decoder
624 - VC-1/WMV3/WMV9 video decoder
627 - VMware video decoder
630 - WavPack lossless audio decoder
631 - Targa (.TGA) picture decoder
632 - Vorbis audio encoder
633 - Delphine Software .cin demuxer/audio and video decoder
634 - Tiertex .seq demuxer/video decoder
636 - TIFF picture encoder and decoder
637 - GIF picture decoder
638 - Intel Music Coder decoder
639 - Zip Motion Blocks Video encoder
641 - Flash Screen Video encoder
642 - Theora encoding via libtheora
645 - GSM-MS encoder and decoder
647 - DXA demuxer and decoder
649 - Gamecube movie (.THP) playback system
650 - Blackfin optimizations
651 - Interplay C93 demuxer and video decoder
652 - Bethsoft VID demuxer and video decoder
655 - V.Flash PTX decoder
656 - RoQ muxer, RoQ audio encoder
657 - Renderware TXD demuxer and decoder
658 - extern C declarations for C++ removed from headers
659 - sws_flags command line option
663 - OS/2 support removed and restored again
666 - additional SPARC (VIS) optimizations
668 - slice-based parallel H.264 decoding
669 - Monkey's Audio demuxer and decoder
670 - AMV audio and video decoder
672 - H.264 PAFF decoding
673 - Nellymoser ASAO decoder
674 - Beam Software SIFF demuxer and decoder
675 - libvorbis Vorbis decoding removed in favor of native decoder
676 - IntraX8 (J-Frame) subdecoder for WMV2 and VC-1
677 - Ogg (Theora, Vorbis and FLAC) muxer
678 - The "device" muxers and demuxers are now in a new libavdevice library
679 - PC Paintbrush PCX decoder
680 - Sun Rasterfile decoder
681 - TechnoTrend PVA demuxer
682 - Linux Media Labs MPEG-4 (LMLM4) demuxer
683 - AVM2 (Flash 9) SWF muxer
684 - QT variant of IMA ADPCM encoder
686 - iPod/iPhone compatible mp4 muxer
688 - MSN TCP Webcam stream demuxer
689 - RL2 demuxer / decoder
692 - non-recursive Makefiles
694 - MAXIS EA XA (.xa) demuxer / decoder
698 - Electronic Arts CMV decoder
699 - Motion Pixels Video decoder
700 - Motion Pixels MVI demuxer
701 - removed animated GIF decoder/demuxer
702 - D-Cinema audio muxer
703 - Electronic Arts TGV decoder
704 - Apple Lossless Audio Codec (ALAC) encoder
706 - floating point PCM encoder/decoder
708 - DV100 AKA DVCPRO HD decoder and demuxer
709 - E-AC-3 support added to AC-3 decoder
710 - Nellymoser ASAO encoder
711 - ASS and SSA demuxer and muxer
712 - liba52 wrapper removed
713 - SVQ3 watermark decoding support
714 - Speex decoding via libspeex
715 - Electronic Arts TGQ decoder
717 - QCELP / PureVoice decoder
719 - hybrid WavPack support
720 - R3D REDCODE demuxer
721 - ALSA support for playback and record
722 - Electronic Arts TQI decoder
723 - OpenJPEG based JPEG 2000 decoder
724 - NC (NC4600) camera file demuxer
725 - Gopher client support
727 - generic metadata API
732 - DV encoder, DV muxer
733 - Microsoft RLE video decoder
734 - Microsoft Video-1 decoder
735 - Apple Animation (RLE) decoder
736 - Apple Graphics (SMC) decoder
737 - Apple Video (RPZA) decoder
739 - Sega FILM (CPK) file demuxer
740 - Westwood multimedia support (VQA & AUD files)
741 - Id Quake II CIN playback support
743 - FLIC playback support
744 - RealVideo 2.0 (RV20) decoder
745 - Duck TrueMotion v1 (DUCK) video decoder
746 - Sierra VMD demuxer and video decoder
747 - MSZH and ZLIB decoder support
751 - rate distortion optimal cbp support
752 - rate distorted optimal ac prediction for MPEG-4
753 - rate distorted optimal lambda->qp support
754 - AAC encoding with libfaac
755 - Sunplus JPEG codec (SP5X) support
756 - use Lagrange multiplier instead of QP for ratecontrol
757 - Theora/VP3 decoding support
758 - XA and ADX ADPCM codecs
759 - export MPEG-2 active display area / pan scan
760 - Add support for configuring with IBM XLC
761 - floating point AAN DCT
762 - initial support for zygo video (not complete)
764 - new audio/video parser API
766 - av_read_frame() and av_seek_frame() support
767 - missing last frame fixes
768 - seek by mouse in ffplay
769 - noise reduction of DCT coefficients
770 - H.263 OBMC & 4MV support
771 - H.263 alternative inter vlc support
773 - H.263 slice structured mode
774 - interlaced DCT support for MPEG-2 encoding
775 - stuffing to stay above min_bitrate
776 - MB type & QP visualization
777 - frame stepping for ffplay
778 - interlaced motion estimation
779 - alternate scantable support
780 - SVCD scan offset support
783 - quantizer noise shaping
784 - G.726 ADPCM audio codec
786 - multithreaded/SMP motion estimation
787 - multithreaded/SMP encoding for MPEG-1/MPEG-2/MPEG-4/H.263
788 - multithreaded/SMP decoding for MPEG-2
790 - Metrowerks CodeWarrior suppport
791 - H.263+ custom pcf support
792 - nicer output for 'ffmpeg -formats'
794 - SGI image format, encoding and decoding
795 - H.264 loop filter support
796 - H.264 CABAC support
797 - nicer looking arrows for the motion vector visualization
798 - improved VCD support
799 - audio timestamp drift compensation
800 - MPEG-2 YUV 422/444 support
801 - polyphase kaiser windowed sinc and blackman nuttall windowed sinc audio resample
802 - better image scaling
804 - correctly interleave packets during encoding
805 - VIS optimized motion compensation
806 - intra_dc_precision>0 encoding support
807 - support reuse of motion vectors/MB types/field select values of the source video
808 - more accurate deblock filter
810 - many optimizations and bugfixes
811 - FunCom ISS audio file demuxer and according ADPCM decoding
816 - MPEG-2 video encoding (Michael)
817 - Id RoQ playback subsystem (Mike Melanson and Tim Ferguson)
818 - Wing Commander III Movie (.mve) file playback subsystem (Mike Melanson
820 - Xan DPCM audio decoder (Mario Brito)
821 - Interplay MVE playback subsystem (Mike Melanson)
822 - Duck DK3 and DK4 ADPCM audio decoders (Mike Melanson)
827 - RealAudio 1.0 (14_4) and 2.0 (28_8) native decoders. Author unknown, code from mplayerhq
828 (originally from public domain player for Amiga at http://www.honeypot.net/audio)
829 - current version now also compiles with older GCC (Fabrice)
830 - 4X multimedia playback system including 4xm file demuxer (Mike
831 Melanson), and 4X video and audio codecs (Michael)
832 - Creative YUV (CYUV) decoder (Mike Melanson)
833 - FFV1 codec (our very simple lossless intra only codec, compresses much better
834 than HuffYUV) (Michael)
835 - ASV1 (Asus), H.264, Intel indeo3 codecs have been added (various)
836 - tiny PNG encoder and decoder, tiny GIF decoder, PAM decoder (PPM with
837 alpha support), JPEG YUV colorspace support. (Fabrice Bellard)
838 - ffplay has been replaced with a newer version which uses SDL (optionally)
839 for multiplatform support (Fabrice)
840 - Sorenson Version 3 codec (SVQ3) support has been added (decoding only) - donated
842 - AMR format has been added (Johannes Carlsson)
843 - 3GP support has been added (Johannes Carlsson)
844 - VP3 codec has been added (Mike Melanson)
845 - more MPEG-1/2 fixes
846 - better multiplatform support, MS Visual Studio fixes (various)
847 - AltiVec optimizations (Magnus Damn and others)
848 - SH4 processor support has been added (BERO)
849 - new public interfaces (avcodec_get_pix_fmt) (Roman Shaposhnick)
850 - VOB streaming support (Brian Foley)
851 - better MP3 autodetection (Andriy Rysin)
852 - qpel encoding (Michael)
853 - 4mv+b frames encoding finally fixed (Michael)
854 - chroma ME (Michael)
855 - 5 comparison functions for ME (Michael)
856 - B-frame encoding speedup (Michael)
857 - WMV2 codec (unfinished - Michael)
858 - user specified diamond size for EPZS (Michael)
859 - Playstation STR playback subsystem, still experimental (Mike and Michael)
860 - ASV2 codec (Michael)
861 - CLJR decoder (Alex)
863 .. And lots more new enhancements and fixes.
868 - completely new integer only MPEG audio layer 1/2/3 decoder rewritten
870 - Recoded DCT and motion vector search with gcc (no longer depends on nasm)
871 - fix quantization bug in AC3 encoder
872 - added PCM codecs and format. Corrected WAV/AVI/ASF PCM issues
873 - added prototype ffplay program
874 - added GOB header parsing on H.263/H.263+ decoder (Juanjo)
875 - bug fix on MCBPC tables of H.263 (Juanjo)
876 - bug fix on DC coefficients of H.263 (Juanjo)
877 - added Advanced Prediction Mode on H.263/H.263+ decoder (Juanjo)
878 - now we can decode H.263 streams found in QuickTime files (Juanjo)
879 - now we can decode H.263 streams found in VIVO v1 files(Juanjo)
880 - preliminary RTP "friendly" mode for H.263/H.263+ coding. (Juanjo)
881 - added GOB header for H.263/H.263+ coding on RTP mode (Juanjo)
882 - now H.263 picture size is returned on the first decoded frame (Juanjo)
883 - added first regression tests
884 - added MPEG-2 TS demuxer
885 - new demux API for libav
886 - more accurate and faster IDCT (Michael)
887 - faster and entropy-controlled motion search (Michael)
888 - two pass video encoding (Michael)
889 - new video rate control (Michael)
890 - added MSMPEG4V1, MSMPEGV2 and WMV1 support (Michael)
891 - great performance improvement of video encoders and decoders (Michael)
892 - new and faster bit readers and vlc parsers (Michael)
893 - high quality encoding mode: tries all macroblock/VLC types (Michael)
894 - added DV video decoder
895 - preliminary RTP/RTSP support in ffserver and libavformat
896 - H.263+ AIC decoding/encoding support (Juanjo)
897 - VCD MPEG-PS mode (Juanjo)
898 - PSNR stuff (Juanjo)
899 - simple stats output (Juanjo)
900 - 16-bit and 15-bit RGB/BGR/GBR support (Bisqwit)
905 - some header fixes (Zdenek Kabelac <kabi at informatics.muni.cz>)
906 - many MMX optimizations (Nick Kurshev <nickols_k at mail.ru>)
907 - added configure system (actually a small shell script)
908 - added MPEG audio layer 1/2/3 decoding using LGPL'ed mpglib by
909 Michael Hipp (temporary solution - waiting for integer only
911 - fixed VIDIOCSYNC interrupt
912 - added Intel H.263 decoding support ('I263' AVI fourCC)
913 - added Real Video 1.0 decoding (needs further testing)
914 - simplified image formats again. Added PGM format (=grey
915 pgm). Renamed old PGM to PGMYUV.
916 - fixed msmpeg4 slice issues (tell me if you still find problems)
917 - fixed OpenDivX bugs with newer versions (added VOL header decoding)
918 - added support for MPlayer interface
919 - added macroblock skip optimization
920 - added MJPEG decoder
921 - added mmx/mmxext IDCT from libmpeg2
922 - added pgmyuvpipe, ppm, and ppm_pipe formats (original patch by Celer
923 <celer at shell.scrypt.net>)
924 - added pixel format conversion layer (e.g. for MJPEG or PPM)
925 - added deinterlacing option
927 - MPEG-4 vol header fixes (Jonathan Marsden <snmjbm at pacbell.net>)
928 - ARM optimizations (Lionel Ulmer <lionel.ulmer at free.fr>).
929 - Windows porting of file converter
930 - added MJPEG raw format (input/ouput)
931 - added JPEG image format support (input/output)
936 - fixed some std header definitions (Bjorn Lindgren
937 <bjorn.e.lindgren at telia.com>).
938 - added MPEG demuxer (MPEG-1 and 2 compatible).
940 - added prototype RM demuxer
941 - added AC3 decoding (done with libac3 by Aaron Holtzman)
942 - added decoding codec parameter guessing (.e.g. for MPEG, because the
943 header does not include them)
944 - fixed header generation in MPEG-1, AVI and ASF muxer: wmplayer can now
945 play them (only tested video)
946 - fixed H.263 white bug
947 - fixed phase rounding in img resample filter
948 - add MMX code for polyphase img resample filter
949 - added CPU autodetection
950 - added generic title/author/copyright/comment string handling (ASF and RM
952 - added SWF demux to extract MP3 track (not usable yet because no MP3
954 - added fractional frame rate support
955 - codecs are no longer searched by read_header() (should fix ffserver
961 - BGR24 patch (initial patch by Jeroen Vreeken <pe1rxq at amsat.org>)
962 - fixed raw yuv output
963 - added motion rounding support in MPEG-4
964 - fixed motion bug rounding in MSMPEG4
965 - added B-frame handling in video core
966 - added full MPEG-1 decoding support
967 - added partial (frame only) MPEG-2 support
968 - changed the FOURCC code for H.263 to "U263" to be able to see the
969 +AVI/H.263 file with the UB Video H.263+ decoder. MPlayer works with
970 this +codec ;) (JuanJo).
971 - Halfpel motion estimation after MB type selection (JuanJo)
972 - added pgm and .Y.U.V output format
973 - suppressed 'img:' protocol. Simply use: /tmp/test%d.[pgm|Y] as input or
975 - added pgmpipe I/O format (original patch from Martin Aumueller
976 <lists at reserv.at>, but changed completely since we use a format
977 instead of a protocol)
982 - added H.263/MPEG-4/MSMPEG4 decoding support. MPEG-4 decoding support
983 (for OpenDivX) is almost complete: 8x8 MVs and rounding are
984 missing. MSMPEG4 support is complete.
985 - added prototype MPEG-1 decoder. Only I- and P-frames handled yet (it
986 can decode ffmpeg MPEGs :-)).
987 - added libavcodec API documentation (see apiexample.c).
988 - fixed image polyphase bug (the bottom of some images could be
990 - added support for non clipped motion vectors (decoding only)
991 and image sizes non-multiple of 16
992 - added support for AC prediction (decoding only)
993 - added file overwrite confirmation (can be disabled with -y)
994 - added custom size picture to H.263 using H.263+ (Juanjo)
999 - added MSMPEG4 (aka DivX) compatible encoder. Changed default codec
1000 of AVI and ASF to DIV3.
1001 - added -me option to set motion estimation method
1002 (default=log). suppressed redundant -hq option.
1003 - added options -acodec and -vcodec to force a given codec (useful for
1006 - improved dct_quantize speed
1007 - factorized some motion estimation code
1012 - removing grab code from ffserver and moved it to ffmpeg. Added
1013 multistream support to ffmpeg.
1014 - added timeshifting support for live feeds (option ?date=xxx in the
1016 - added high quality image resize code with polyphase filter (need
1017 mmx/see optimization). Enable multiple image size support in ffserver.
1018 - added multi live feed support in ffserver
1019 - suppressed master feature from ffserver (it should be done with an
1020 external program which opens the .ffm url and writes it to another
1022 - added preliminary support for video stream parsing (WAV and AVI half
1023 done). Added proper support for audio/video file conversion in
1025 - added preliminary support for video file sending from ffserver
1026 - redesigning I/O subsystem: now using URL based input and output
1028 - added WAV format support
1029 - added "tty user interface" to ffmpeg to stop grabbing gracefully
1030 - added MMX/SSE optimizations to SAD (Sums of Absolutes Differences)
1031 (Juan J. Sierralta P. a.k.a. "Juanjo" <juanjo at atmlab.utfsm.cl>)
1032 - added MMX DCT from mpeg2_movie 1.5 (Juanjo)
1033 - added new motion estimation algorithms, log and phods (Juanjo)
1034 - changed directories: libav for format handling, libavcodec for
1040 - added stereo in MPEG audio encoder
1045 - added 'high quality' mode which use motion vectors. It can be used in
1046 real time at low resolution.
1047 - fixed rounding problems which caused quality problems at high
1048 bitrates and large GOP size
1051 version 0.3.2: small fixes
1057 version 0.3.1: added avi/divx support
1060 - added MPEG-4 codec compatible with OpenDivX. It is based on the H.263 codec
1061 - added sound for flash format (not tested)
1064 version 0.3: initial public release