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
12 - aliases and defaults for Ogg subtypes (opus, spx)
13 - HEVC/H.265 RTP payload format (draft v6) packetizer and depacketizer
14 - avplay now exits by default at the end of playback
15 - XCB-based screen-grabber
16 - creating DASH compatible fragmented MP4, MPEG-DASH segmenting muxer
17 - H.261 RTP payload format (RFC 4587) depacketizer and experimental packetizer
20 - OpenH264 encoder wrapper
21 - Support DNx100 (960x720@8)
22 - Direct3D11-accelerated decoding
23 - DXVA2-accelerated HEVC decoding
24 - AAC ELD 480 decoding
25 - Intel QSV-accelerated H.264 decoding
26 - DSS SP decoder and DSS demuxer
27 - RTP depacketizer for AC3 payload format (RFC 4184)
28 - RTP depacketizer for loss tolerant payload format for MP3 audio (RFC 5219)
29 - RTP depacketizer for DV (RFC 6469)
31 - RTP depacketization of T.140 text (RFC 4103)
32 - VP9 RTP payload format (draft 0) experimental depacketizer
34 - DTS lossless extension (XLL) decoding (not lossless, disabled by default)
35 - Intel QSV-accelerated H.264 encoding
36 - MMAL-accelerated H.264 decoding
37 - DTS decoding through libdcadec
38 - Canopus HQ/HQA decoder
39 - Automatically rotate videos based on metadata in avconv
40 - improved Quickdraw compatibility
41 - NVIDIA NVENC-accelerated H.264 and HEVC encoding support
42 - Multipart JPEG demuxer
43 - Support the extended vp9 profiles in the libvpx wrapper
44 - Hap decoder and encoder
45 - DirectDraw Surface image/texture decoder
46 - rewritten ASF demuxer
47 - Go2Meeting decoding support
48 - Intel QSV-accelerated MPEG-2 video and HEVC encoding
49 - bitstream filter for converting HEVC from MP4 to Annex B
50 - Intel QSV-accelerated MPEG-2 video and HEVC decoding
51 - Support DNx100 (1440x1080@8)
53 - Screenpresso SPV1 decoding
54 - zero-copy Intel QSV transcoding in avconv
55 - libkvazaar HEVC encoder
56 - innoHeim/Rsupport Screen Capture Codec decoder
57 - support encoding 16-bit RLE SGI images
58 - support Apple AVFoundation video capture
59 - G.723.1 muxer and encoder
61 - VAAPI-accelerated format conversion and scaling
62 - libnpp/CUDA-accelerated format conversion and scaling
63 - VAAPI-accelerate H.264/HEVC/MJPEG encoding
64 - Generic OpenMAX IL encoder with support for Raspberry Pi
65 - MMAL-accelerated MPEG-2 and VC-1 decoding
68 - Duck TrueMotion 2.0 Real Time decoder
69 - Intel QSV video scaling and deinterlacing filter
70 - Support MOV with multiple sample description tables
71 - OpenH264 decoder wrapper
72 - Removed the legacy X11 screen grabber, use XCB instead
73 - HDCD decoding filter through libhdcd
78 - shuffleplanes filter
79 - replaygain data export
80 - Alias PIX image encoder and decoder
81 - BRender PIX image decoder
82 - Amazing Studio PAF playback support
84 - BMP standalone parser
85 - OpenEXR image decoder
86 - support encoding and decoding 4-channel SGI images
87 - support decoding 16-bit RLE SGI images
89 - LucasArts SMUSH SANM video decoder
90 - LucasArts SMUSH VIMA audio decoder (ADPCM)
91 - LucasArts SMUSH demuxer
92 - MP2 encoding via TwoLAME
94 - Silicon Graphics RLE 8-bit video decoder
95 - Silicon Graphics Motion Video Compressor 1 & 2 decoder
96 - Silicon Graphics Movie demuxer
97 - On2 AVC (Audio for Video) decoder
98 - support for decoding through DXVA2 in avconv
99 - libbs2b-based stereo-to-binaural audio filter
100 - native Opus decoder
101 - display matrix export and rotation API
102 - drop avserver, it was unmaintained for years and largely broken
104 - request Icecast metadata by default
105 - support for using metadata in stream specifiers in avtools
106 - Matroska 3D support
111 - support ID3v2 tags in ASF files
112 - reference-counting for AVFrame and AVPacket data
113 - avconv now fails when input options are used for output file
115 - avconv options -filter_script and -filter_complex_script, which allow a
116 filtergraph description to be read from a file
117 - uniform options syntax across all filters
120 - asetpts filter (same as setpts, but for audio)
121 - trim and atrim filters
122 - avconv -t and -ss (output-only) options are now sample-accurate when
124 - Matroska muxer can now put the index at the beginning of the file.
125 - avconv -deinterlace option removed, the yadif filter should be used instead
126 - Apple Intermediate Codec decoder
127 - Escape 130 video decoder
128 - support for slice multithreading in libavfilter
129 - VC-1 interlaced B-frame support
130 - support for WavPack muxing (raw and in Matroska)
132 - WavPack encoding through libwavpack
133 - Added the -n parameter to avconv
135 - when transcoding with avconv (i.e. not streamcopying), -ss is now accurate
136 even when used as an input option. Previous behavior can be restored with
137 the -noaccurate_seek option.
138 - avconv -t option can now be used for inputs, to limit the duration of
139 data read from an input file
140 - Voxware MetaSound decoder
142 - Error Resilient AAC syntax (ER AAC LC) decoding
143 - Low Delay AAC (ER AAC LD) decoding
144 - mux chapters in ASF files
145 - Opus in Ogg demuxing
146 - Enhanced Low Delay AAC (ER AAC ELD) decoding (no LD SBR support)
148 - HNM version 4 demuxer and video decoder
150 - raw HEVC, HEVC in MOV/MP4, HEVC in Matroska, HEVC in MPEG-TS demuxing
151 - remove avplay -vismv option, which has not worked for a long time
153 - setsar/setdar filters now support variables in ratio expressions
154 - dar variable in the scale filter now returns the actual DAR (i.e. a * sar)
156 - support for decoding through VDPAU in avconv (the -hwaccel option)
157 - remove mp3_header_(de)compress bitstream filters
158 - stereoscopic 3d metadata handling
159 - png standalone parser
160 - WebP encoding via libwebp
163 - Mirillis FIC video decoder
165 - compand audio filter
169 - av_basename and av_dirname
170 - adobe and limelight publisher authentication in RTMP
171 - VDPAU hardware acceleration through normal hwaccel
176 - ashowinfo audio filter
177 - 24-bit FLAC encoding
178 - audio volume filter
179 - deprecated the avconv -vol option. the volume filter is to be used instead.
180 - multi-channel ALAC encoding up to 7.1
181 - TAK demuxer, parser, and decoder
182 - adaptive frame-level multithreading for H.264
186 - metadata (INFO tag) support in WAV muxer
187 - support for building DLLs using MSVC
188 - remove avserver daemon mode
189 - support building on the Plan 9 operating system
190 - ffv1: support version 1.3
195 - XWD encoder and decoder
196 - Support for fragmentation in the mov/mp4 muxer
197 - ISMV (Smooth Streaming) muxer
198 - CDXL demuxer and decoder
199 - Apple ProRes encoder
200 - Sun Rasterfile Encoder
202 - ID3v2 attached pictures reading and writing
203 - WMA Lossless decoder
205 - RealAudio Lossless decoder
207 - drop support for avconv without libavfilter
208 - add libavresample audio conversion library
209 - audio filters support in libavfilter and avconv
213 - avprobe output is now standard INI or JSON. The old format can still
214 be used with -of old.
215 - Indeo Audio decoder
216 - channelsplit audio filter
217 - RTMPT protocol support
218 - iLBC encoding/decoding via libilbc
219 - Microsoft Screen 1 decoder
221 - audio channel mapping filter
222 - Microsoft ATC Screen decoder
224 - TechSmith Screen Codec 2 decoder
225 - AAC encoding via libfdk-aac
226 - Microsoft Expression Encoder Screen decoder
227 - RTMPS protocol support
228 - RTMPTS protocol support
229 - JPEG 2000 encoding support through OpenJPEG
230 - G.723.1 demuxer and decoder
231 - RTMPE protocol support
232 - RTMPTE protocol support
233 - Canopus Lossless Codec decoder
234 - avconv -shortest option is now per-output file,
235 -pass and -passlogfile are now per-output stream
237 - Microsoft Screen 2 decoder
238 - RTP depacketization of JPEG
239 - Smooth Streaming live segmenter muxer
240 - RTP packetization of JPEG
241 - Opus decoder and encoder using libopus
242 - remove -same_quant, it hasn't worked for years
243 - support for building with MSVC
254 - Automatic thread count based on detection number of (available) CPU cores
255 - Deprecate libpostproc. If desired, the switch --enable-postproc will
256 enable it but it may be removed in a later Libav release.
257 - rv34: frame-level multi-threading
258 - optimized iMDCT transform on x86 using SSE for for mpegaudiodec
264 - Flash Screen Video 2 decoder
265 - ffplay/ffprobe/ffserver renamed to avplay/avprobe/avserver
266 - ffmpeg deprecated, added avconv, which is almost the same for now, except
267 for a few incompatible changes in the options, which will hopefully make them
268 easier to use. The changes are:
269 * The options placement is now strictly enforced! While in theory the
270 options for ffmpeg should be given in [input options] -i INPUT [output
271 options] OUTPUT order, in practice it was possible to give output options
272 before the -i and it mostly worked. Except when it didn't - the behavior was
273 a bit inconsistent. In avconv, it is not possible to mix input and output
274 options. All non-global options are reset after an input or output filename.
275 * All per-file options are now truly per-file - they apply only to the next
276 input or output file and specifying different values for different files
277 will now work properly (notably -ss and -t options).
278 * All per-stream options are now truly per-stream - it is possible to
279 specify which stream(s) should a given option apply to. See the Stream
280 specifiers section in the avconv manual for details.
281 * In ffmpeg some options (like -newvideo/-newaudio/...) are irregular in the
282 sense that they're specified after the output filename instead of before,
283 like all other options. In avconv this irregularity is removed, all options
284 apply to the next input or output file.
285 * -newvideo/-newaudio/-newsubtitle options were removed. Not only were they
286 irregular and highly confusing, they were also redundant. In avconv the -map
287 option will create new streams in the output file and map input streams to
288 them. E.g. avconv -i INPUT -map 0 OUTPUT will create an output stream for
289 each stream in the first input file.
290 * The -map option now has slightly different and more powerful syntax:
291 + Colons (':') are used to separate file index/stream type/stream index
292 instead of dots. Comma (',') is used to separate the sync stream instead
293 of colon.. This is done for consistency with other options.
294 + It's possible to specify stream type. E.g. -map 0:a:2 creates an
295 output stream from the third input audio stream.
296 + Omitting the stream index now maps all the streams of the given type,
297 not just the first. E.g. -map 0:s creates output streams for all the
298 subtitle streams in the first input file.
299 + Since -map can now match multiple streams, negative mappings were
300 introduced. Negative mappings disable some streams from an already
301 defined map. E.g. '-map 0 -map -0:a:1' means 'create output streams for
302 all the stream in the first input file, except for the second audio
304 * There is a new option -c (or -codec) for choosing the decoder/encoder to
305 use, which allows to precisely specify target stream(s) consistently with
306 other options. E.g. -c:v lib264 sets the codec for all video streams, -c:a:0
307 libvorbis sets the codec for the first audio stream and -c copy copies all
308 the streams without reencoding. Old -vcodec/-acodec/-scodec options are now
310 * It is now possible to precisely specify which stream should an AVOption
311 apply to. E.g. -b:v:0 2M sets the bitrate for the first video stream, while
312 -b:a 128k sets the bitrate for all audio streams. Note that the old -ab 128k
313 syntax is deprecated and will stop working soon.
314 * -map_chapters now takes only an input file index and applies to the next
315 output file. This is consistent with how all the other options work.
316 * -map_metadata now takes only an input metadata specifier and applies to
317 the next output file. Output metadata specifier is now part of the option
318 name, similarly to the AVOptions/map/codec feature above.
319 * -metadata can now be used to set metadata on streams and chapters, e.g.
320 -metadata:s:1 language=eng sets the language of the first stream to 'eng'.
321 This made -vlang/-alang/-slang options redundant, so they were removed.
322 * -qscale option now uses stream specifiers and applies to all streams, not
323 just video. I.e. plain -qscale number would now apply to all streams. To get
324 the old behavior, use -qscale:v. Also there is now a shortcut -q for -qscale
325 and -aq is now an alias for -q:a.
326 * -vbsf/-absf/-sbsf options were removed and replaced by a -bsf option which
327 uses stream specifiers. Use -bsf:v/a/s instead of the old options.
328 * -itsscale option now uses stream specifiers, so its argument is only the
330 * -intra option was removed, use -g 0 for the same effect.
331 * -psnr option was removed, use -flags +psnr for the same effect.
332 * -vf option is now an alias to the new -filter option, which uses stream specifiers.
333 * -vframes/-aframes/-dframes options are now aliases to the new -frames option.
334 * -vtag/-atag/-stag options are now aliases to the new -tag option.
336 - Windows Media Image decoder
340 - libcdio-paranoia input device for audio CD grabbing
342 - Apple ProRes decoder
343 - CELT in Ogg demuxing
344 - VC-1 interlaced decoding
345 - lut, lutrgb, and lutyuv filters
348 - Speex encoding via libspeex
349 - 4:2:2 H.264 decoding support
350 - 4:2:2 and 4:4:4 H.264 encoding with libx264
351 - Pulseaudio input device
352 - replacement Indeo 3 decoder
353 - TLS/SSL and HTTPS protocol support
354 - AVOptions API rewritten and documented
355 - most of CODEC_FLAG2_*, some CODEC_FLAG_* and many codec-specific fields in
356 AVCodecContext deprecated. Codec private options should be used instead.
357 - Properly working defaults in libx264 wrapper, support for native presets.
358 - Encrypted OMA files support
359 - Discworld II BMV decoding support
361 - OS X Video Decoder Acceleration (VDA) support
362 - CRI ADX audio format muxer and demuxer
363 - Playstation Portable PMP format demuxer
364 - PCM format support in OMA demuxer
366 - Dxtory capture format decoder
367 - v410 QuickTime uncompressed 4:4:4 10-bit encoder and decoder
369 - Simple segmenting muxer
376 - E-AC-3 audio encoder
377 - ac3enc: add channel coupling support
378 - floating-point sample format support for (E-)AC-3, DCA, AAC, Vorbis decoders
379 - H.264/MPEG frame-level multithreading
380 - av_metadata_* functions renamed to av_dict_* and moved to libavutil
381 - 4:4:4 H.264 decoding support
382 - 10-bit H.264 optimizations for x86
383 - bump libswscale for recently reported ABI break
388 - VP8 frame-level multithreading
389 - NEON optimizations for VP8
390 - removed a lot of deprecated API cruft
391 - FFT and IMDCT optimizations for AVX (Sandy Bridge) processors
393 - SMPTE 302M AES3 audio decoder
394 - ffmpeg no longer quits after the 'q' key is pressed; use 'ctrl+c' instead
395 - 9 bits and 10 bits per sample support in the H.264 decoder
400 - WebM support in Matroska de/muxer
401 - low overhead Ogg muxing
403 - VP8 de/encoding via libvpx
404 - Demuxer for On2's IVF format
405 - Pictor/PC Paint decoder
407 - libfaad2 wrapper removed
408 - DTS-ES extension (XCh) decoding support
410 - RTSP tunneling over HTTP
411 - RTP depacketization of SVQ3
412 - -strict inofficial replaced by -strict unofficial
413 - ffplay -exitonkeydown and -exitonmousedown options added
414 - native GSM / GSM MS decoder
415 - RTP depacketization of QDM2
416 - ANSI/ASCII art playback system
417 - Lego Mindstorms RSO de/muxer
418 - SubRip subtitle file muxer and demuxer
419 - Chinese AVS encoding via libxavs
420 - ffprobe -show_packets option added
421 - RTP packetization of Theora and Vorbis
422 - RTP depacketization of MP4A-LATM
423 - RTP packetization and depacketization of VP8
425 - Apple HTTP Live Streaming demuxer
428 - G.722 ADPCM audio encoder/decoder
431 - frei0r wrapper filter
432 - change crop filter syntax to width:height:x:y
433 - make the crop filter accept parametric expressions
434 - make ffprobe accept AVFormatContext options
437 - Demuxer for Leitch/Harris' VR native stream format (LXF)
438 - RTP depacketization of the X-QT QuickTime format
439 - SAP (Session Announcement Protocol, RFC 2974) muxer and demuxer
441 - ffmpeg -crop* options removed
442 - transpose filter added
443 - ffmpeg -force_key_frames option added
444 - demuxer for receiving raw rtp:// URLs without an SDP description
445 - single stream LATM/LOAS decoder
446 - setpts filter added
447 - Win64 support for optimized x86 assembly functions
448 - MJPEG/AVI1 to JPEG/JFIF bitstream filter
449 - ASS subtitle encoder and decoder
450 - IEC 61937 encapsulation for E-AC-3, TrueHD, DTS-HD (for HDMI passthrough)
451 - overlay filter added
452 - rename aspect filter to setdar, and pixelaspect to setsar
454 - Mobotix .mxg demuxer
455 - frei0r source added
456 - hqdn3d filter added
457 - RTP depacketization of QCELP
459 - gradfun filter added
461 - replace the ocv_smooth filter with a more generic ocv filter
462 - Windows Televison (WTV) demuxer
463 - FFmpeg metadata format muxer and demuxer
464 - SubRip (srt) subtitle decoder
465 - floating-point AC-3 encoder added
467 - ffmpeg -copytb option added
469 - Wing Commander IV movies decoder added
471 - Bink version 'b' audio and video decoder
472 - Bitmap Brothers JV playback system
473 - Apple HTTP Live Streaming protocol handler
474 - sndio support for playback and record
475 - Linux framebuffer input device added
476 - Chronomaster DFA decoder
477 - Mobotix MxPEG decoder
478 - AAC encoding via libvo-aacenc
479 - AMR-WB encoding via libvo-amrwbenc
481 - fieldorder video filter added
486 - PB-frame decoding for H.263
487 - deprecated vhook subsystem removed
488 - deprecated old scaler removed
490 - Alpha channel scaler
492 - RTP packetization of H.263
493 - RTP packetization of AMR
494 - RTP depacketization of Vorbis
495 - CorePNG decoding support
496 - Cook multichannel decoding support
497 - introduced avlanguage helpers in libavformat
498 - 8088flex TMV demuxer and decoder
499 - per-stream language-tags extraction in asfdec
500 - V210 decoder and encoder
501 - remaining GPL parts in AC-3 decoder converted to LGPL
503 - SoX native format muxer and demuxer
504 - AMR-NB decoding/encoding, AMR-WB decoding via OpenCORE libraries
506 - Electronic Arts Madcow decoder
507 - DivX (XSUB) subtitle encoder
508 - nonfree libamr support for AMR-NB/WB decoding/encoding removed
509 - experimental AAC encoder
510 - RTP depacketization of ASF and RTSP from WMS servers
511 - RTMP support in libavformat
512 - noX handling for OPT_BOOL X options
514 - IEC-61937 compatible Muxer
516 - Bluray (PGS) subtitle decoder
517 - LPCM support in MPEG-TS (HDMV RID as found on Blu-ray disks)
519 - Core Audio Format demuxer
521 - MD STUDIO audio demuxer
522 - RF64 support in WAV demuxer
523 - MPEG-4 Audio Lossless Coding (ALS) decoder
524 - -formats option split into -formats, -codecs, -bsfs, and -protocols
526 - CDG demuxer and decoder
528 - Auravision Aura 1 and 2 decoders
529 - Deluxe Paint Animation playback system
531 - Adobe Filmstrip muxer and demuxer
532 - RTP depacketization of H.263
533 - Bink demuxer and audio/video decoders
534 - enable symbol versioning by default for linkers that support it
535 - IFF PBM/ILBM bitmap decoder
538 - RTP depacketization of AMR
544 - Kega Game Video (KGV1) decoder
545 - VorbisComment writing for FLAC, Ogg FLAC and Ogg Speex files
546 - RTP depacketization of Theora
547 - HTTP Digest authentication
548 - RTMP/RTMPT/RTMPS/RTMPE/RTMPTE protocol support via librtmp
549 - Psygnosis YOP demuxer and video decoder
550 - spectral extension support in the E-AC-3 decoder
551 - unsharp video filter
552 - RTP hinting in the mov/3gp/mp4 muxer
553 - Dirac in Ogg demuxing
554 - seek to keyframes in Ogg
555 - 4:2:2 and 4:4:4 Theora decoding
556 - 35% faster VP3/Theora decoding
557 - faster AAC decoding
558 - faster H.264 decoding
559 - RealAudio 1.0 (14.4K) encoder
564 - DV50 AKA DVCPRO50 encoder, decoder, muxer and demuxer
565 - TechSmith Camtasia (TSCC) video decoder
566 - IBM Ultimotion (ULTI) video decoder
567 - Sierra Online audio file demuxer and decoder
568 - Apple QuickDraw (qdrw) video decoder
569 - Creative ADPCM audio decoder (16 bits as well as 8 bits schemes)
570 - Electronic Arts Multimedia (WVE/UV2/etc.) file demuxer
571 - Miro VideoXL (VIXL) video decoder
572 - H.261 video encoder
574 - Nullsoft Video (NSV) file demuxer
575 - Shorten audio decoder
577 - Apple Lossless Audio Codec (ALAC) decoder
578 - Winnov WNV1 video decoder
579 - Autodesk Animator Studio Codec (AASC) decoder
580 - Indeo 2 video decoder
581 - Fraps FPS1 video decoder
582 - Snow video encoder/decoder
583 - Sonic audio encoder/decoder
584 - Vorbis audio decoder
585 - Macromedia ADPCM decoder
586 - Duck TrueMotion 2 video decoder
587 - support for decoding FLX and DTA extensions in FLIC files
588 - H.264 custom quantization matrices support
589 - ffserver fixed, it should now be usable again
591 - Real Cooker audio decoder
592 - TrueSpeech audio decoder
593 - WMA2 audio decoder fixed, now all files should play correctly
594 - RealAudio 14.4 and 28.8 decoders fixed
596 - build system improvements
597 - tabs and trailing whitespace removed from the codebase
598 - CamStudio video decoder
599 - AIFF/AIFF-C audio format, encoding and decoding
600 - ADTS AAC file reading and writing
601 - Creative VOC file reading and writing
602 - American Laser Games multimedia (*.mm) playback system
603 - Zip Motion Blocks Video decoder
604 - improved Theora/VP3 decoder
605 - True Audio (TTA) decoder
606 - AVS demuxer and video decoder
608 - Smacker demuxer and decoder
609 - NuppelVideo/MythTV demuxer and RTjpeg decoder
611 - MPEG-2 intra VLC support
612 - MPEG-2 4:2:2 encoder
613 - Flash Screen Video decoder
615 - Chinese AVS decoder
618 - VC-1/WMV3/WMV9 video decoder
621 - VMware video decoder
624 - WavPack lossless audio decoder
625 - Targa (.TGA) picture decoder
626 - Vorbis audio encoder
627 - Delphine Software .cin demuxer/audio and video decoder
628 - Tiertex .seq demuxer/video decoder
630 - TIFF picture encoder and decoder
631 - GIF picture decoder
632 - Intel Music Coder decoder
633 - Zip Motion Blocks Video encoder
635 - Flash Screen Video encoder
636 - Theora encoding via libtheora
639 - GSM-MS encoder and decoder
641 - DXA demuxer and decoder
643 - Gamecube movie (.THP) playback system
644 - Blackfin optimizations
645 - Interplay C93 demuxer and video decoder
646 - Bethsoft VID demuxer and video decoder
649 - V.Flash PTX decoder
650 - RoQ muxer, RoQ audio encoder
651 - Renderware TXD demuxer and decoder
652 - extern C declarations for C++ removed from headers
653 - sws_flags command line option
657 - OS/2 support removed and restored again
660 - additional SPARC (VIS) optimizations
662 - slice-based parallel H.264 decoding
663 - Monkey's Audio demuxer and decoder
664 - AMV audio and video decoder
666 - H.264 PAFF decoding
667 - Nellymoser ASAO decoder
668 - Beam Software SIFF demuxer and decoder
669 - libvorbis Vorbis decoding removed in favor of native decoder
670 - IntraX8 (J-Frame) subdecoder for WMV2 and VC-1
671 - Ogg (Theora, Vorbis and FLAC) muxer
672 - The "device" muxers and demuxers are now in a new libavdevice library
673 - PC Paintbrush PCX decoder
674 - Sun Rasterfile decoder
675 - TechnoTrend PVA demuxer
676 - Linux Media Labs MPEG-4 (LMLM4) demuxer
677 - AVM2 (Flash 9) SWF muxer
678 - QT variant of IMA ADPCM encoder
680 - iPod/iPhone compatible mp4 muxer
682 - MSN TCP Webcam stream demuxer
683 - RL2 demuxer / decoder
686 - non-recursive Makefiles
688 - MAXIS EA XA (.xa) demuxer / decoder
692 - Electronic Arts CMV decoder
693 - Motion Pixels Video decoder
694 - Motion Pixels MVI demuxer
695 - removed animated GIF decoder/demuxer
696 - D-Cinema audio muxer
697 - Electronic Arts TGV decoder
698 - Apple Lossless Audio Codec (ALAC) encoder
700 - floating point PCM encoder/decoder
702 - DV100 AKA DVCPRO HD decoder and demuxer
703 - E-AC-3 support added to AC-3 decoder
704 - Nellymoser ASAO encoder
705 - ASS and SSA demuxer and muxer
706 - liba52 wrapper removed
707 - SVQ3 watermark decoding support
708 - Speex decoding via libspeex
709 - Electronic Arts TGQ decoder
711 - QCELP / PureVoice decoder
713 - hybrid WavPack support
714 - R3D REDCODE demuxer
715 - ALSA support for playback and record
716 - Electronic Arts TQI decoder
717 - OpenJPEG based JPEG 2000 decoder
718 - NC (NC4600) camera file demuxer
719 - Gopher client support
721 - generic metadata API
726 - DV encoder, DV muxer
727 - Microsoft RLE video decoder
728 - Microsoft Video-1 decoder
729 - Apple Animation (RLE) decoder
730 - Apple Graphics (SMC) decoder
731 - Apple Video (RPZA) decoder
733 - Sega FILM (CPK) file demuxer
734 - Westwood multimedia support (VQA & AUD files)
735 - Id Quake II CIN playback support
737 - FLIC playback support
738 - RealVideo 2.0 (RV20) decoder
739 - Duck TrueMotion v1 (DUCK) video decoder
740 - Sierra VMD demuxer and video decoder
741 - MSZH and ZLIB decoder support
745 - rate distortion optimal cbp support
746 - rate distorted optimal ac prediction for MPEG-4
747 - rate distorted optimal lambda->qp support
748 - AAC encoding with libfaac
749 - Sunplus JPEG codec (SP5X) support
750 - use Lagrange multiplier instead of QP for ratecontrol
751 - Theora/VP3 decoding support
752 - XA and ADX ADPCM codecs
753 - export MPEG-2 active display area / pan scan
754 - Add support for configuring with IBM XLC
755 - floating point AAN DCT
756 - initial support for zygo video (not complete)
758 - new audio/video parser API
760 - av_read_frame() and av_seek_frame() support
761 - missing last frame fixes
762 - seek by mouse in ffplay
763 - noise reduction of DCT coefficients
764 - H.263 OBMC & 4MV support
765 - H.263 alternative inter vlc support
767 - H.263 slice structured mode
768 - interlaced DCT support for MPEG-2 encoding
769 - stuffing to stay above min_bitrate
770 - MB type & QP visualization
771 - frame stepping for ffplay
772 - interlaced motion estimation
773 - alternate scantable support
774 - SVCD scan offset support
777 - quantizer noise shaping
778 - G.726 ADPCM audio codec
780 - multithreaded/SMP motion estimation
781 - multithreaded/SMP encoding for MPEG-1/MPEG-2/MPEG-4/H.263
782 - multithreaded/SMP decoding for MPEG-2
784 - Metrowerks CodeWarrior suppport
785 - H.263+ custom pcf support
786 - nicer output for 'ffmpeg -formats'
788 - SGI image format, encoding and decoding
789 - H.264 loop filter support
790 - H.264 CABAC support
791 - nicer looking arrows for the motion vector visualization
792 - improved VCD support
793 - audio timestamp drift compensation
794 - MPEG-2 YUV 422/444 support
795 - polyphase kaiser windowed sinc and blackman nuttall windowed sinc audio resample
796 - better image scaling
798 - correctly interleave packets during encoding
799 - VIS optimized motion compensation
800 - intra_dc_precision>0 encoding support
801 - support reuse of motion vectors/MB types/field select values of the source video
802 - more accurate deblock filter
804 - many optimizations and bugfixes
805 - FunCom ISS audio file demuxer and according ADPCM decoding
810 - MPEG-2 video encoding (Michael)
811 - Id RoQ playback subsystem (Mike Melanson and Tim Ferguson)
812 - Wing Commander III Movie (.mve) file playback subsystem (Mike Melanson
814 - Xan DPCM audio decoder (Mario Brito)
815 - Interplay MVE playback subsystem (Mike Melanson)
816 - Duck DK3 and DK4 ADPCM audio decoders (Mike Melanson)
821 - RealAudio 1.0 (14_4) and 2.0 (28_8) native decoders. Author unknown, code from mplayerhq
822 (originally from public domain player for Amiga at http://www.honeypot.net/audio)
823 - current version now also compiles with older GCC (Fabrice)
824 - 4X multimedia playback system including 4xm file demuxer (Mike
825 Melanson), and 4X video and audio codecs (Michael)
826 - Creative YUV (CYUV) decoder (Mike Melanson)
827 - FFV1 codec (our very simple lossless intra only codec, compresses much better
828 than HuffYUV) (Michael)
829 - ASV1 (Asus), H.264, Intel indeo3 codecs have been added (various)
830 - tiny PNG encoder and decoder, tiny GIF decoder, PAM decoder (PPM with
831 alpha support), JPEG YUV colorspace support. (Fabrice Bellard)
832 - ffplay has been replaced with a newer version which uses SDL (optionally)
833 for multiplatform support (Fabrice)
834 - Sorenson Version 3 codec (SVQ3) support has been added (decoding only) - donated
836 - AMR format has been added (Johannes Carlsson)
837 - 3GP support has been added (Johannes Carlsson)
838 - VP3 codec has been added (Mike Melanson)
839 - more MPEG-1/2 fixes
840 - better multiplatform support, MS Visual Studio fixes (various)
841 - AltiVec optimizations (Magnus Damn and others)
842 - SH4 processor support has been added (BERO)
843 - new public interfaces (avcodec_get_pix_fmt) (Roman Shaposhnick)
844 - VOB streaming support (Brian Foley)
845 - better MP3 autodetection (Andriy Rysin)
846 - qpel encoding (Michael)
847 - 4mv+b frames encoding finally fixed (Michael)
848 - chroma ME (Michael)
849 - 5 comparison functions for ME (Michael)
850 - B-frame encoding speedup (Michael)
851 - WMV2 codec (unfinished - Michael)
852 - user specified diamond size for EPZS (Michael)
853 - Playstation STR playback subsystem, still experimental (Mike and Michael)
854 - ASV2 codec (Michael)
855 - CLJR decoder (Alex)
857 .. And lots more new enhancements and fixes.
862 - completely new integer only MPEG audio layer 1/2/3 decoder rewritten
864 - Recoded DCT and motion vector search with gcc (no longer depends on nasm)
865 - fix quantization bug in AC3 encoder
866 - added PCM codecs and format. Corrected WAV/AVI/ASF PCM issues
867 - added prototype ffplay program
868 - added GOB header parsing on H.263/H.263+ decoder (Juanjo)
869 - bug fix on MCBPC tables of H.263 (Juanjo)
870 - bug fix on DC coefficients of H.263 (Juanjo)
871 - added Advanced Prediction Mode on H.263/H.263+ decoder (Juanjo)
872 - now we can decode H.263 streams found in QuickTime files (Juanjo)
873 - now we can decode H.263 streams found in VIVO v1 files(Juanjo)
874 - preliminary RTP "friendly" mode for H.263/H.263+ coding. (Juanjo)
875 - added GOB header for H.263/H.263+ coding on RTP mode (Juanjo)
876 - now H.263 picture size is returned on the first decoded frame (Juanjo)
877 - added first regression tests
878 - added MPEG-2 TS demuxer
879 - new demux API for libav
880 - more accurate and faster IDCT (Michael)
881 - faster and entropy-controlled motion search (Michael)
882 - two pass video encoding (Michael)
883 - new video rate control (Michael)
884 - added MSMPEG4V1, MSMPEGV2 and WMV1 support (Michael)
885 - great performance improvement of video encoders and decoders (Michael)
886 - new and faster bit readers and vlc parsers (Michael)
887 - high quality encoding mode: tries all macroblock/VLC types (Michael)
888 - added DV video decoder
889 - preliminary RTP/RTSP support in ffserver and libavformat
890 - H.263+ AIC decoding/encoding support (Juanjo)
891 - VCD MPEG-PS mode (Juanjo)
892 - PSNR stuff (Juanjo)
893 - simple stats output (Juanjo)
894 - 16-bit and 15-bit RGB/BGR/GBR support (Bisqwit)
899 - some header fixes (Zdenek Kabelac <kabi at informatics.muni.cz>)
900 - many MMX optimizations (Nick Kurshev <nickols_k at mail.ru>)
901 - added configure system (actually a small shell script)
902 - added MPEG audio layer 1/2/3 decoding using LGPL'ed mpglib by
903 Michael Hipp (temporary solution - waiting for integer only
905 - fixed VIDIOCSYNC interrupt
906 - added Intel H.263 decoding support ('I263' AVI fourCC)
907 - added Real Video 1.0 decoding (needs further testing)
908 - simplified image formats again. Added PGM format (=grey
909 pgm). Renamed old PGM to PGMYUV.
910 - fixed msmpeg4 slice issues (tell me if you still find problems)
911 - fixed OpenDivX bugs with newer versions (added VOL header decoding)
912 - added support for MPlayer interface
913 - added macroblock skip optimization
914 - added MJPEG decoder
915 - added mmx/mmxext IDCT from libmpeg2
916 - added pgmyuvpipe, ppm, and ppm_pipe formats (original patch by Celer
917 <celer at shell.scrypt.net>)
918 - added pixel format conversion layer (e.g. for MJPEG or PPM)
919 - added deinterlacing option
921 - MPEG-4 vol header fixes (Jonathan Marsden <snmjbm at pacbell.net>)
922 - ARM optimizations (Lionel Ulmer <lionel.ulmer at free.fr>).
923 - Windows porting of file converter
924 - added MJPEG raw format (input/ouput)
925 - added JPEG image format support (input/output)
930 - fixed some std header definitions (Bjorn Lindgren
931 <bjorn.e.lindgren at telia.com>).
932 - added MPEG demuxer (MPEG-1 and 2 compatible).
934 - added prototype RM demuxer
935 - added AC3 decoding (done with libac3 by Aaron Holtzman)
936 - added decoding codec parameter guessing (.e.g. for MPEG, because the
937 header does not include them)
938 - fixed header generation in MPEG-1, AVI and ASF muxer: wmplayer can now
939 play them (only tested video)
940 - fixed H.263 white bug
941 - fixed phase rounding in img resample filter
942 - add MMX code for polyphase img resample filter
943 - added CPU autodetection
944 - added generic title/author/copyright/comment string handling (ASF and RM
946 - added SWF demux to extract MP3 track (not usable yet because no MP3
948 - added fractional frame rate support
949 - codecs are no longer searched by read_header() (should fix ffserver
955 - BGR24 patch (initial patch by Jeroen Vreeken <pe1rxq at amsat.org>)
956 - fixed raw yuv output
957 - added motion rounding support in MPEG-4
958 - fixed motion bug rounding in MSMPEG4
959 - added B-frame handling in video core
960 - added full MPEG-1 decoding support
961 - added partial (frame only) MPEG-2 support
962 - changed the FOURCC code for H.263 to "U263" to be able to see the
963 +AVI/H.263 file with the UB Video H.263+ decoder. MPlayer works with
964 this +codec ;) (JuanJo).
965 - Halfpel motion estimation after MB type selection (JuanJo)
966 - added pgm and .Y.U.V output format
967 - suppressed 'img:' protocol. Simply use: /tmp/test%d.[pgm|Y] as input or
969 - added pgmpipe I/O format (original patch from Martin Aumueller
970 <lists at reserv.at>, but changed completely since we use a format
971 instead of a protocol)
976 - added H.263/MPEG-4/MSMPEG4 decoding support. MPEG-4 decoding support
977 (for OpenDivX) is almost complete: 8x8 MVs and rounding are
978 missing. MSMPEG4 support is complete.
979 - added prototype MPEG-1 decoder. Only I- and P-frames handled yet (it
980 can decode ffmpeg MPEGs :-)).
981 - added libavcodec API documentation (see apiexample.c).
982 - fixed image polyphase bug (the bottom of some images could be
984 - added support for non clipped motion vectors (decoding only)
985 and image sizes non-multiple of 16
986 - added support for AC prediction (decoding only)
987 - added file overwrite confirmation (can be disabled with -y)
988 - added custom size picture to H.263 using H.263+ (Juanjo)
993 - added MSMPEG4 (aka DivX) compatible encoder. Changed default codec
994 of AVI and ASF to DIV3.
995 - added -me option to set motion estimation method
996 (default=log). suppressed redundant -hq option.
997 - added options -acodec and -vcodec to force a given codec (useful for
1000 - improved dct_quantize speed
1001 - factorized some motion estimation code
1006 - removing grab code from ffserver and moved it to ffmpeg. Added
1007 multistream support to ffmpeg.
1008 - added timeshifting support for live feeds (option ?date=xxx in the
1010 - added high quality image resize code with polyphase filter (need
1011 mmx/see optimization). Enable multiple image size support in ffserver.
1012 - added multi live feed support in ffserver
1013 - suppressed master feature from ffserver (it should be done with an
1014 external program which opens the .ffm url and writes it to another
1016 - added preliminary support for video stream parsing (WAV and AVI half
1017 done). Added proper support for audio/video file conversion in
1019 - added preliminary support for video file sending from ffserver
1020 - redesigning I/O subsystem: now using URL based input and output
1022 - added WAV format support
1023 - added "tty user interface" to ffmpeg to stop grabbing gracefully
1024 - added MMX/SSE optimizations to SAD (Sums of Absolutes Differences)
1025 (Juan J. Sierralta P. a.k.a. "Juanjo" <juanjo at atmlab.utfsm.cl>)
1026 - added MMX DCT from mpeg2_movie 1.5 (Juanjo)
1027 - added new motion estimation algorithms, log and phods (Juanjo)
1028 - changed directories: libav for format handling, libavcodec for
1034 - added stereo in MPEG audio encoder
1039 - added 'high quality' mode which use motion vectors. It can be used in
1040 real time at low resolution.
1041 - fixed rounding problems which caused quality problems at high
1042 bitrates and large GOP size
1045 version 0.3.2: small fixes
1051 version 0.3.1: added avi/divx support
1054 - added MPEG-4 codec compatible with OpenDivX. It is based on the H.263 codec
1055 - added sound for flash format (not tested)
1058 version 0.3: initial public release