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.
15 - VP9 superframe split/merge bitstream filters
16 - FM Screen Capture Codec decoder
17 - ClearVideo decoder (I-frames only)
21 - aliases and defaults for Ogg subtypes (opus, spx)
22 - HEVC/H.265 RTP payload format (draft v6) packetizer and depacketizer
23 - avplay now exits by default at the end of playback
24 - XCB-based screen-grabber
25 - creating DASH compatible fragmented MP4, MPEG-DASH segmenting muxer
26 - H.261 RTP payload format (RFC 4587) depacketizer and experimental packetizer
29 - OpenH264 encoder wrapper
30 - Support DNx100 (960x720@8)
31 - Direct3D11-accelerated decoding
32 - DXVA2-accelerated HEVC decoding
33 - AAC ELD 480 decoding
34 - Intel QSV-accelerated H.264 decoding
35 - DSS SP decoder and DSS demuxer
36 - RTP depacketizer for AC3 payload format (RFC 4184)
37 - RTP depacketizer for loss tolerant payload format for MP3 audio (RFC 5219)
38 - RTP depacketizer for DV (RFC 6469)
40 - RTP depacketization of T.140 text (RFC 4103)
41 - VP9 RTP payload format (draft 0) experimental depacketizer
43 - DTS lossless extension (XLL) decoding (not lossless, disabled by default)
44 - Intel QSV-accelerated H.264 encoding
45 - MMAL-accelerated H.264 decoding
46 - DTS decoding through libdcadec
47 - Canopus HQ/HQA decoder
48 - Automatically rotate videos based on metadata in avconv
49 - improved Quickdraw compatibility
50 - NVIDIA NVENC-accelerated H.264 and HEVC encoding support
51 - Multipart JPEG demuxer
52 - Support the extended vp9 profiles in the libvpx wrapper
53 - Hap decoder and encoder
54 - DirectDraw Surface image/texture decoder
55 - rewritten ASF demuxer
56 - Go2Meeting decoding support
57 - Intel QSV-accelerated MPEG-2 video and HEVC encoding
58 - bitstream filter for converting HEVC from MP4 to Annex B
59 - Intel QSV-accelerated MPEG-2 video and HEVC decoding
60 - Support DNx100 (1440x1080@8)
62 - Screenpresso SPV1 decoding
63 - zero-copy Intel QSV transcoding in avconv
64 - libkvazaar HEVC encoder
65 - innoHeim/Rsupport Screen Capture Codec decoder
66 - support encoding 16-bit RLE SGI images
67 - support Apple AVFoundation video capture
68 - G.723.1 muxer and encoder
70 - VAAPI-accelerated format conversion and scaling
71 - libnpp/CUDA-accelerated format conversion and scaling
72 - VAAPI-accelerate H.264/HEVC/MJPEG encoding
73 - Generic OpenMAX IL encoder with support for Raspberry Pi
74 - MMAL-accelerated MPEG-2 and VC-1 decoding
77 - Duck TrueMotion 2.0 Real Time decoder
78 - Intel QSV video scaling and deinterlacing filter
79 - Support MOV with multiple sample description tables
80 - OpenH264 decoder wrapper
81 - Removed the legacy X11 screen grabber, use XCB instead
82 - HDCD decoding filter through libhdcd
87 - shuffleplanes filter
88 - replaygain data export
89 - Alias PIX image encoder and decoder
90 - BRender PIX image decoder
91 - Amazing Studio PAF playback support
93 - BMP standalone parser
94 - OpenEXR image decoder
95 - support encoding and decoding 4-channel SGI images
96 - support decoding 16-bit RLE SGI images
98 - LucasArts SMUSH SANM video decoder
99 - LucasArts SMUSH VIMA audio decoder (ADPCM)
100 - LucasArts SMUSH demuxer
101 - MP2 encoding via TwoLAME
103 - Silicon Graphics RLE 8-bit video decoder
104 - Silicon Graphics Motion Video Compressor 1 & 2 decoder
105 - Silicon Graphics Movie demuxer
106 - On2 AVC (Audio for Video) decoder
107 - support for decoding through DXVA2 in avconv
108 - libbs2b-based stereo-to-binaural audio filter
109 - native Opus decoder
110 - display matrix export and rotation API
111 - drop avserver, it was unmaintained for years and largely broken
113 - request Icecast metadata by default
114 - support for using metadata in stream specifiers in avtools
115 - Matroska 3D support
120 - support ID3v2 tags in ASF files
121 - reference-counting for AVFrame and AVPacket data
122 - avconv now fails when input options are used for output file
124 - avconv options -filter_script and -filter_complex_script, which allow a
125 filtergraph description to be read from a file
126 - uniform options syntax across all filters
129 - asetpts filter (same as setpts, but for audio)
130 - trim and atrim filters
131 - avconv -t and -ss (output-only) options are now sample-accurate when
133 - Matroska muxer can now put the index at the beginning of the file.
134 - avconv -deinterlace option removed, the yadif filter should be used instead
135 - Apple Intermediate Codec decoder
136 - Escape 130 video decoder
137 - support for slice multithreading in libavfilter
138 - VC-1 interlaced B-frame support
139 - support for WavPack muxing (raw and in Matroska)
141 - WavPack encoding through libwavpack
142 - Added the -n parameter to avconv
144 - when transcoding with avconv (i.e. not streamcopying), -ss is now accurate
145 even when used as an input option. Previous behavior can be restored with
146 the -noaccurate_seek option.
147 - avconv -t option can now be used for inputs, to limit the duration of
148 data read from an input file
149 - Voxware MetaSound decoder
151 - Error Resilient AAC syntax (ER AAC LC) decoding
152 - Low Delay AAC (ER AAC LD) decoding
153 - mux chapters in ASF files
154 - Opus in Ogg demuxing
155 - Enhanced Low Delay AAC (ER AAC ELD) decoding (no LD SBR support)
157 - HNM version 4 demuxer and video decoder
159 - raw HEVC, HEVC in MOV/MP4, HEVC in Matroska, HEVC in MPEG-TS demuxing
160 - remove avplay -vismv option, which has not worked for a long time
162 - setsar/setdar filters now support variables in ratio expressions
163 - dar variable in the scale filter now returns the actual DAR (i.e. a * sar)
165 - support for decoding through VDPAU in avconv (the -hwaccel option)
166 - remove mp3_header_(de)compress bitstream filters
167 - stereoscopic 3d metadata handling
168 - png standalone parser
169 - WebP encoding via libwebp
172 - Mirillis FIC video decoder
174 - compand audio filter
178 - av_basename and av_dirname
179 - adobe and limelight publisher authentication in RTMP
180 - VDPAU hardware acceleration through normal hwaccel
185 - ashowinfo audio filter
186 - 24-bit FLAC encoding
187 - audio volume filter
188 - deprecated the avconv -vol option. the volume filter is to be used instead.
189 - multi-channel ALAC encoding up to 7.1
190 - TAK demuxer, parser, and decoder
191 - adaptive frame-level multithreading for H.264
195 - metadata (INFO tag) support in WAV muxer
196 - support for building DLLs using MSVC
197 - remove avserver daemon mode
198 - support building on the Plan 9 operating system
199 - ffv1: support version 1.3
204 - XWD encoder and decoder
205 - Support for fragmentation in the mov/mp4 muxer
206 - ISMV (Smooth Streaming) muxer
207 - CDXL demuxer and decoder
208 - Apple ProRes encoder
209 - Sun Rasterfile Encoder
211 - ID3v2 attached pictures reading and writing
212 - WMA Lossless decoder
214 - RealAudio Lossless decoder
216 - drop support for avconv without libavfilter
217 - add libavresample audio conversion library
218 - audio filters support in libavfilter and avconv
222 - avprobe output is now standard INI or JSON. The old format can still
223 be used with -of old.
224 - Indeo Audio decoder
225 - channelsplit audio filter
226 - RTMPT protocol support
227 - iLBC encoding/decoding via libilbc
228 - Microsoft Screen 1 decoder
230 - audio channel mapping filter
231 - Microsoft ATC Screen decoder
233 - TechSmith Screen Codec 2 decoder
234 - AAC encoding via libfdk-aac
235 - Microsoft Expression Encoder Screen decoder
236 - RTMPS protocol support
237 - RTMPTS protocol support
238 - JPEG 2000 encoding support through OpenJPEG
239 - G.723.1 demuxer and decoder
240 - RTMPE protocol support
241 - RTMPTE protocol support
242 - Canopus Lossless Codec decoder
243 - avconv -shortest option is now per-output file,
244 -pass and -passlogfile are now per-output stream
246 - Microsoft Screen 2 decoder
247 - RTP depacketization of JPEG
248 - Smooth Streaming live segmenter muxer
249 - RTP packetization of JPEG
250 - Opus decoder and encoder using libopus
251 - remove -same_quant, it hasn't worked for years
252 - support for building with MSVC
263 - Automatic thread count based on detection number of (available) CPU cores
264 - Deprecate libpostproc. If desired, the switch --enable-postproc will
265 enable it but it may be removed in a later Libav release.
266 - rv34: frame-level multi-threading
267 - optimized iMDCT transform on x86 using SSE for for mpegaudiodec
273 - Flash Screen Video 2 decoder
274 - ffplay/ffprobe/ffserver renamed to avplay/avprobe/avserver
275 - ffmpeg deprecated, added avconv, which is almost the same for now, except
276 for a few incompatible changes in the options, which will hopefully make them
277 easier to use. The changes are:
278 * The options placement is now strictly enforced! While in theory the
279 options for ffmpeg should be given in [input options] -i INPUT [output
280 options] OUTPUT order, in practice it was possible to give output options
281 before the -i and it mostly worked. Except when it didn't - the behavior was
282 a bit inconsistent. In avconv, it is not possible to mix input and output
283 options. All non-global options are reset after an input or output filename.
284 * All per-file options are now truly per-file - they apply only to the next
285 input or output file and specifying different values for different files
286 will now work properly (notably -ss and -t options).
287 * All per-stream options are now truly per-stream - it is possible to
288 specify which stream(s) should a given option apply to. See the Stream
289 specifiers section in the avconv manual for details.
290 * In ffmpeg some options (like -newvideo/-newaudio/...) are irregular in the
291 sense that they're specified after the output filename instead of before,
292 like all other options. In avconv this irregularity is removed, all options
293 apply to the next input or output file.
294 * -newvideo/-newaudio/-newsubtitle options were removed. Not only were they
295 irregular and highly confusing, they were also redundant. In avconv the -map
296 option will create new streams in the output file and map input streams to
297 them. E.g. avconv -i INPUT -map 0 OUTPUT will create an output stream for
298 each stream in the first input file.
299 * The -map option now has slightly different and more powerful syntax:
300 + Colons (':') are used to separate file index/stream type/stream index
301 instead of dots. Comma (',') is used to separate the sync stream instead
302 of colon.. This is done for consistency with other options.
303 + It's possible to specify stream type. E.g. -map 0:a:2 creates an
304 output stream from the third input audio stream.
305 + Omitting the stream index now maps all the streams of the given type,
306 not just the first. E.g. -map 0:s creates output streams for all the
307 subtitle streams in the first input file.
308 + Since -map can now match multiple streams, negative mappings were
309 introduced. Negative mappings disable some streams from an already
310 defined map. E.g. '-map 0 -map -0:a:1' means 'create output streams for
311 all the stream in the first input file, except for the second audio
313 * There is a new option -c (or -codec) for choosing the decoder/encoder to
314 use, which allows to precisely specify target stream(s) consistently with
315 other options. E.g. -c:v lib264 sets the codec for all video streams, -c:a:0
316 libvorbis sets the codec for the first audio stream and -c copy copies all
317 the streams without reencoding. Old -vcodec/-acodec/-scodec options are now
319 * It is now possible to precisely specify which stream should an AVOption
320 apply to. E.g. -b:v:0 2M sets the bitrate for the first video stream, while
321 -b:a 128k sets the bitrate for all audio streams. Note that the old -ab 128k
322 syntax is deprecated and will stop working soon.
323 * -map_chapters now takes only an input file index and applies to the next
324 output file. This is consistent with how all the other options work.
325 * -map_metadata now takes only an input metadata specifier and applies to
326 the next output file. Output metadata specifier is now part of the option
327 name, similarly to the AVOptions/map/codec feature above.
328 * -metadata can now be used to set metadata on streams and chapters, e.g.
329 -metadata:s:1 language=eng sets the language of the first stream to 'eng'.
330 This made -vlang/-alang/-slang options redundant, so they were removed.
331 * -qscale option now uses stream specifiers and applies to all streams, not
332 just video. I.e. plain -qscale number would now apply to all streams. To get
333 the old behavior, use -qscale:v. Also there is now a shortcut -q for -qscale
334 and -aq is now an alias for -q:a.
335 * -vbsf/-absf/-sbsf options were removed and replaced by a -bsf option which
336 uses stream specifiers. Use -bsf:v/a/s instead of the old options.
337 * -itsscale option now uses stream specifiers, so its argument is only the
339 * -intra option was removed, use -g 0 for the same effect.
340 * -psnr option was removed, use -flags +psnr for the same effect.
341 * -vf option is now an alias to the new -filter option, which uses stream specifiers.
342 * -vframes/-aframes/-dframes options are now aliases to the new -frames option.
343 * -vtag/-atag/-stag options are now aliases to the new -tag option.
345 - Windows Media Image decoder
349 - libcdio-paranoia input device for audio CD grabbing
351 - Apple ProRes decoder
352 - CELT in Ogg demuxing
353 - VC-1 interlaced decoding
354 - lut, lutrgb, and lutyuv filters
357 - Speex encoding via libspeex
358 - 4:2:2 H.264 decoding support
359 - 4:2:2 and 4:4:4 H.264 encoding with libx264
360 - Pulseaudio input device
361 - replacement Indeo 3 decoder
362 - TLS/SSL and HTTPS protocol support
363 - AVOptions API rewritten and documented
364 - most of CODEC_FLAG2_*, some CODEC_FLAG_* and many codec-specific fields in
365 AVCodecContext deprecated. Codec private options should be used instead.
366 - Properly working defaults in libx264 wrapper, support for native presets.
367 - Encrypted OMA files support
368 - Discworld II BMV decoding support
370 - OS X Video Decoder Acceleration (VDA) support
371 - CRI ADX audio format muxer and demuxer
372 - Playstation Portable PMP format demuxer
373 - PCM format support in OMA demuxer
375 - Dxtory capture format decoder
376 - v410 QuickTime uncompressed 4:4:4 10-bit encoder and decoder
378 - Simple segmenting muxer
385 - E-AC-3 audio encoder
386 - ac3enc: add channel coupling support
387 - floating-point sample format support for (E-)AC-3, DCA, AAC, Vorbis decoders
388 - H.264/MPEG frame-level multithreading
389 - av_metadata_* functions renamed to av_dict_* and moved to libavutil
390 - 4:4:4 H.264 decoding support
391 - 10-bit H.264 optimizations for x86
392 - bump libswscale for recently reported ABI break
397 - VP8 frame-level multithreading
398 - NEON optimizations for VP8
399 - removed a lot of deprecated API cruft
400 - FFT and IMDCT optimizations for AVX (Sandy Bridge) processors
402 - SMPTE 302M AES3 audio decoder
403 - ffmpeg no longer quits after the 'q' key is pressed; use 'ctrl+c' instead
404 - 9 bits and 10 bits per sample support in the H.264 decoder
409 - WebM support in Matroska de/muxer
410 - low overhead Ogg muxing
412 - VP8 de/encoding via libvpx
413 - Demuxer for On2's IVF format
414 - Pictor/PC Paint decoder
416 - libfaad2 wrapper removed
417 - DTS-ES extension (XCh) decoding support
419 - RTSP tunneling over HTTP
420 - RTP depacketization of SVQ3
421 - -strict inofficial replaced by -strict unofficial
422 - ffplay -exitonkeydown and -exitonmousedown options added
423 - native GSM / GSM MS decoder
424 - RTP depacketization of QDM2
425 - ANSI/ASCII art playback system
426 - Lego Mindstorms RSO de/muxer
427 - SubRip subtitle file muxer and demuxer
428 - Chinese AVS encoding via libxavs
429 - ffprobe -show_packets option added
430 - RTP packetization of Theora and Vorbis
431 - RTP depacketization of MP4A-LATM
432 - RTP packetization and depacketization of VP8
434 - Apple HTTP Live Streaming demuxer
437 - G.722 ADPCM audio encoder/decoder
440 - frei0r wrapper filter
441 - change crop filter syntax to width:height:x:y
442 - make the crop filter accept parametric expressions
443 - make ffprobe accept AVFormatContext options
446 - Demuxer for Leitch/Harris' VR native stream format (LXF)
447 - RTP depacketization of the X-QT QuickTime format
448 - SAP (Session Announcement Protocol, RFC 2974) muxer and demuxer
450 - ffmpeg -crop* options removed
451 - transpose filter added
452 - ffmpeg -force_key_frames option added
453 - demuxer for receiving raw rtp:// URLs without an SDP description
454 - single stream LATM/LOAS decoder
455 - setpts filter added
456 - Win64 support for optimized x86 assembly functions
457 - MJPEG/AVI1 to JPEG/JFIF bitstream filter
458 - ASS subtitle encoder and decoder
459 - IEC 61937 encapsulation for E-AC-3, TrueHD, DTS-HD (for HDMI passthrough)
460 - overlay filter added
461 - rename aspect filter to setdar, and pixelaspect to setsar
463 - Mobotix .mxg demuxer
464 - frei0r source added
465 - hqdn3d filter added
466 - RTP depacketization of QCELP
468 - gradfun filter added
470 - replace the ocv_smooth filter with a more generic ocv filter
471 - Windows Televison (WTV) demuxer
472 - FFmpeg metadata format muxer and demuxer
473 - SubRip (srt) subtitle decoder
474 - floating-point AC-3 encoder added
476 - ffmpeg -copytb option added
478 - Wing Commander IV movies decoder added
480 - Bink version 'b' audio and video decoder
481 - Bitmap Brothers JV playback system
482 - Apple HTTP Live Streaming protocol handler
483 - sndio support for playback and record
484 - Linux framebuffer input device added
485 - Chronomaster DFA decoder
486 - Mobotix MxPEG decoder
487 - AAC encoding via libvo-aacenc
488 - AMR-WB encoding via libvo-amrwbenc
490 - fieldorder video filter added
495 - PB-frame decoding for H.263
496 - deprecated vhook subsystem removed
497 - deprecated old scaler removed
499 - Alpha channel scaler
501 - RTP packetization of H.263
502 - RTP packetization of AMR
503 - RTP depacketization of Vorbis
504 - CorePNG decoding support
505 - Cook multichannel decoding support
506 - introduced avlanguage helpers in libavformat
507 - 8088flex TMV demuxer and decoder
508 - per-stream language-tags extraction in asfdec
509 - V210 decoder and encoder
510 - remaining GPL parts in AC-3 decoder converted to LGPL
512 - SoX native format muxer and demuxer
513 - AMR-NB decoding/encoding, AMR-WB decoding via OpenCORE libraries
515 - Electronic Arts Madcow decoder
516 - DivX (XSUB) subtitle encoder
517 - nonfree libamr support for AMR-NB/WB decoding/encoding removed
518 - experimental AAC encoder
519 - RTP depacketization of ASF and RTSP from WMS servers
520 - RTMP support in libavformat
521 - noX handling for OPT_BOOL X options
523 - IEC-61937 compatible Muxer
525 - Bluray (PGS) subtitle decoder
526 - LPCM support in MPEG-TS (HDMV RID as found on Blu-ray disks)
528 - Core Audio Format demuxer
530 - MD STUDIO audio demuxer
531 - RF64 support in WAV demuxer
532 - MPEG-4 Audio Lossless Coding (ALS) decoder
533 - -formats option split into -formats, -codecs, -bsfs, and -protocols
535 - CDG demuxer and decoder
537 - Auravision Aura 1 and 2 decoders
538 - Deluxe Paint Animation playback system
540 - Adobe Filmstrip muxer and demuxer
541 - RTP depacketization of H.263
542 - Bink demuxer and audio/video decoders
543 - enable symbol versioning by default for linkers that support it
544 - IFF PBM/ILBM bitmap decoder
547 - RTP depacketization of AMR
553 - Kega Game Video (KGV1) decoder
554 - VorbisComment writing for FLAC, Ogg FLAC and Ogg Speex files
555 - RTP depacketization of Theora
556 - HTTP Digest authentication
557 - RTMP/RTMPT/RTMPS/RTMPE/RTMPTE protocol support via librtmp
558 - Psygnosis YOP demuxer and video decoder
559 - spectral extension support in the E-AC-3 decoder
560 - unsharp video filter
561 - RTP hinting in the mov/3gp/mp4 muxer
562 - Dirac in Ogg demuxing
563 - seek to keyframes in Ogg
564 - 4:2:2 and 4:4:4 Theora decoding
565 - 35% faster VP3/Theora decoding
566 - faster AAC decoding
567 - faster H.264 decoding
568 - RealAudio 1.0 (14.4K) encoder
573 - DV50 AKA DVCPRO50 encoder, decoder, muxer and demuxer
574 - TechSmith Camtasia (TSCC) video decoder
575 - IBM Ultimotion (ULTI) video decoder
576 - Sierra Online audio file demuxer and decoder
577 - Apple QuickDraw (qdrw) video decoder
578 - Creative ADPCM audio decoder (16 bits as well as 8 bits schemes)
579 - Electronic Arts Multimedia (WVE/UV2/etc.) file demuxer
580 - Miro VideoXL (VIXL) video decoder
581 - H.261 video encoder
583 - Nullsoft Video (NSV) file demuxer
584 - Shorten audio decoder
586 - Apple Lossless Audio Codec (ALAC) decoder
587 - Winnov WNV1 video decoder
588 - Autodesk Animator Studio Codec (AASC) decoder
589 - Indeo 2 video decoder
590 - Fraps FPS1 video decoder
591 - Snow video encoder/decoder
592 - Sonic audio encoder/decoder
593 - Vorbis audio decoder
594 - Macromedia ADPCM decoder
595 - Duck TrueMotion 2 video decoder
596 - support for decoding FLX and DTA extensions in FLIC files
597 - H.264 custom quantization matrices support
598 - ffserver fixed, it should now be usable again
600 - Real Cooker audio decoder
601 - TrueSpeech audio decoder
602 - WMA2 audio decoder fixed, now all files should play correctly
603 - RealAudio 14.4 and 28.8 decoders fixed
605 - build system improvements
606 - tabs and trailing whitespace removed from the codebase
607 - CamStudio video decoder
608 - AIFF/AIFF-C audio format, encoding and decoding
609 - ADTS AAC file reading and writing
610 - Creative VOC file reading and writing
611 - American Laser Games multimedia (*.mm) playback system
612 - Zip Motion Blocks Video decoder
613 - improved Theora/VP3 decoder
614 - True Audio (TTA) decoder
615 - AVS demuxer and video decoder
617 - Smacker demuxer and decoder
618 - NuppelVideo/MythTV demuxer and RTjpeg decoder
620 - MPEG-2 intra VLC support
621 - MPEG-2 4:2:2 encoder
622 - Flash Screen Video decoder
624 - Chinese AVS decoder
627 - VC-1/WMV3/WMV9 video decoder
630 - VMware video decoder
633 - WavPack lossless audio decoder
634 - Targa (.TGA) picture decoder
635 - Vorbis audio encoder
636 - Delphine Software .cin demuxer/audio and video decoder
637 - Tiertex .seq demuxer/video decoder
639 - TIFF picture encoder and decoder
640 - GIF picture decoder
641 - Intel Music Coder decoder
642 - Zip Motion Blocks Video encoder
644 - Flash Screen Video encoder
645 - Theora encoding via libtheora
648 - GSM-MS encoder and decoder
650 - DXA demuxer and decoder
652 - Gamecube movie (.THP) playback system
653 - Blackfin optimizations
654 - Interplay C93 demuxer and video decoder
655 - Bethsoft VID demuxer and video decoder
658 - V.Flash PTX decoder
659 - RoQ muxer, RoQ audio encoder
660 - Renderware TXD demuxer and decoder
661 - extern C declarations for C++ removed from headers
662 - sws_flags command line option
666 - OS/2 support removed and restored again
669 - additional SPARC (VIS) optimizations
671 - slice-based parallel H.264 decoding
672 - Monkey's Audio demuxer and decoder
673 - AMV audio and video decoder
675 - H.264 PAFF decoding
676 - Nellymoser ASAO decoder
677 - Beam Software SIFF demuxer and decoder
678 - libvorbis Vorbis decoding removed in favor of native decoder
679 - IntraX8 (J-Frame) subdecoder for WMV2 and VC-1
680 - Ogg (Theora, Vorbis and FLAC) muxer
681 - The "device" muxers and demuxers are now in a new libavdevice library
682 - PC Paintbrush PCX decoder
683 - Sun Rasterfile decoder
684 - TechnoTrend PVA demuxer
685 - Linux Media Labs MPEG-4 (LMLM4) demuxer
686 - AVM2 (Flash 9) SWF muxer
687 - QT variant of IMA ADPCM encoder
689 - iPod/iPhone compatible mp4 muxer
691 - MSN TCP Webcam stream demuxer
692 - RL2 demuxer / decoder
695 - non-recursive Makefiles
697 - MAXIS EA XA (.xa) demuxer / decoder
701 - Electronic Arts CMV decoder
702 - Motion Pixels Video decoder
703 - Motion Pixels MVI demuxer
704 - removed animated GIF decoder/demuxer
705 - D-Cinema audio muxer
706 - Electronic Arts TGV decoder
707 - Apple Lossless Audio Codec (ALAC) encoder
709 - floating point PCM encoder/decoder
711 - DV100 AKA DVCPRO HD decoder and demuxer
712 - E-AC-3 support added to AC-3 decoder
713 - Nellymoser ASAO encoder
714 - ASS and SSA demuxer and muxer
715 - liba52 wrapper removed
716 - SVQ3 watermark decoding support
717 - Speex decoding via libspeex
718 - Electronic Arts TGQ decoder
720 - QCELP / PureVoice decoder
722 - hybrid WavPack support
723 - R3D REDCODE demuxer
724 - ALSA support for playback and record
725 - Electronic Arts TQI decoder
726 - OpenJPEG based JPEG 2000 decoder
727 - NC (NC4600) camera file demuxer
728 - Gopher client support
730 - generic metadata API
735 - DV encoder, DV muxer
736 - Microsoft RLE video decoder
737 - Microsoft Video-1 decoder
738 - Apple Animation (RLE) decoder
739 - Apple Graphics (SMC) decoder
740 - Apple Video (RPZA) decoder
742 - Sega FILM (CPK) file demuxer
743 - Westwood multimedia support (VQA & AUD files)
744 - Id Quake II CIN playback support
746 - FLIC playback support
747 - RealVideo 2.0 (RV20) decoder
748 - Duck TrueMotion v1 (DUCK) video decoder
749 - Sierra VMD demuxer and video decoder
750 - MSZH and ZLIB decoder support
754 - rate distortion optimal cbp support
755 - rate distorted optimal ac prediction for MPEG-4
756 - rate distorted optimal lambda->qp support
757 - AAC encoding with libfaac
758 - Sunplus JPEG codec (SP5X) support
759 - use Lagrange multiplier instead of QP for ratecontrol
760 - Theora/VP3 decoding support
761 - XA and ADX ADPCM codecs
762 - export MPEG-2 active display area / pan scan
763 - Add support for configuring with IBM XLC
764 - floating point AAN DCT
765 - initial support for zygo video (not complete)
767 - new audio/video parser API
769 - av_read_frame() and av_seek_frame() support
770 - missing last frame fixes
771 - seek by mouse in ffplay
772 - noise reduction of DCT coefficients
773 - H.263 OBMC & 4MV support
774 - H.263 alternative inter vlc support
776 - H.263 slice structured mode
777 - interlaced DCT support for MPEG-2 encoding
778 - stuffing to stay above min_bitrate
779 - MB type & QP visualization
780 - frame stepping for ffplay
781 - interlaced motion estimation
782 - alternate scantable support
783 - SVCD scan offset support
786 - quantizer noise shaping
787 - G.726 ADPCM audio codec
789 - multithreaded/SMP motion estimation
790 - multithreaded/SMP encoding for MPEG-1/MPEG-2/MPEG-4/H.263
791 - multithreaded/SMP decoding for MPEG-2
793 - Metrowerks CodeWarrior suppport
794 - H.263+ custom pcf support
795 - nicer output for 'ffmpeg -formats'
797 - SGI image format, encoding and decoding
798 - H.264 loop filter support
799 - H.264 CABAC support
800 - nicer looking arrows for the motion vector visualization
801 - improved VCD support
802 - audio timestamp drift compensation
803 - MPEG-2 YUV 422/444 support
804 - polyphase kaiser windowed sinc and blackman nuttall windowed sinc audio resample
805 - better image scaling
807 - correctly interleave packets during encoding
808 - VIS optimized motion compensation
809 - intra_dc_precision>0 encoding support
810 - support reuse of motion vectors/MB types/field select values of the source video
811 - more accurate deblock filter
813 - many optimizations and bugfixes
814 - FunCom ISS audio file demuxer and according ADPCM decoding
819 - MPEG-2 video encoding (Michael)
820 - Id RoQ playback subsystem (Mike Melanson and Tim Ferguson)
821 - Wing Commander III Movie (.mve) file playback subsystem (Mike Melanson
823 - Xan DPCM audio decoder (Mario Brito)
824 - Interplay MVE playback subsystem (Mike Melanson)
825 - Duck DK3 and DK4 ADPCM audio decoders (Mike Melanson)
830 - RealAudio 1.0 (14_4) and 2.0 (28_8) native decoders. Author unknown, code from mplayerhq
831 (originally from public domain player for Amiga at http://www.honeypot.net/audio)
832 - current version now also compiles with older GCC (Fabrice)
833 - 4X multimedia playback system including 4xm file demuxer (Mike
834 Melanson), and 4X video and audio codecs (Michael)
835 - Creative YUV (CYUV) decoder (Mike Melanson)
836 - FFV1 codec (our very simple lossless intra only codec, compresses much better
837 than HuffYUV) (Michael)
838 - ASV1 (Asus), H.264, Intel indeo3 codecs have been added (various)
839 - tiny PNG encoder and decoder, tiny GIF decoder, PAM decoder (PPM with
840 alpha support), JPEG YUV colorspace support. (Fabrice Bellard)
841 - ffplay has been replaced with a newer version which uses SDL (optionally)
842 for multiplatform support (Fabrice)
843 - Sorenson Version 3 codec (SVQ3) support has been added (decoding only) - donated
845 - AMR format has been added (Johannes Carlsson)
846 - 3GP support has been added (Johannes Carlsson)
847 - VP3 codec has been added (Mike Melanson)
848 - more MPEG-1/2 fixes
849 - better multiplatform support, MS Visual Studio fixes (various)
850 - AltiVec optimizations (Magnus Damn and others)
851 - SH4 processor support has been added (BERO)
852 - new public interfaces (avcodec_get_pix_fmt) (Roman Shaposhnick)
853 - VOB streaming support (Brian Foley)
854 - better MP3 autodetection (Andriy Rysin)
855 - qpel encoding (Michael)
856 - 4mv+b frames encoding finally fixed (Michael)
857 - chroma ME (Michael)
858 - 5 comparison functions for ME (Michael)
859 - B-frame encoding speedup (Michael)
860 - WMV2 codec (unfinished - Michael)
861 - user specified diamond size for EPZS (Michael)
862 - Playstation STR playback subsystem, still experimental (Mike and Michael)
863 - ASV2 codec (Michael)
864 - CLJR decoder (Alex)
866 .. And lots more new enhancements and fixes.
871 - completely new integer only MPEG audio layer 1/2/3 decoder rewritten
873 - Recoded DCT and motion vector search with gcc (no longer depends on nasm)
874 - fix quantization bug in AC3 encoder
875 - added PCM codecs and format. Corrected WAV/AVI/ASF PCM issues
876 - added prototype ffplay program
877 - added GOB header parsing on H.263/H.263+ decoder (Juanjo)
878 - bug fix on MCBPC tables of H.263 (Juanjo)
879 - bug fix on DC coefficients of H.263 (Juanjo)
880 - added Advanced Prediction Mode on H.263/H.263+ decoder (Juanjo)
881 - now we can decode H.263 streams found in QuickTime files (Juanjo)
882 - now we can decode H.263 streams found in VIVO v1 files(Juanjo)
883 - preliminary RTP "friendly" mode for H.263/H.263+ coding. (Juanjo)
884 - added GOB header for H.263/H.263+ coding on RTP mode (Juanjo)
885 - now H.263 picture size is returned on the first decoded frame (Juanjo)
886 - added first regression tests
887 - added MPEG-2 TS demuxer
888 - new demux API for libav
889 - more accurate and faster IDCT (Michael)
890 - faster and entropy-controlled motion search (Michael)
891 - two pass video encoding (Michael)
892 - new video rate control (Michael)
893 - added MSMPEG4V1, MSMPEGV2 and WMV1 support (Michael)
894 - great performance improvement of video encoders and decoders (Michael)
895 - new and faster bit readers and vlc parsers (Michael)
896 - high quality encoding mode: tries all macroblock/VLC types (Michael)
897 - added DV video decoder
898 - preliminary RTP/RTSP support in ffserver and libavformat
899 - H.263+ AIC decoding/encoding support (Juanjo)
900 - VCD MPEG-PS mode (Juanjo)
901 - PSNR stuff (Juanjo)
902 - simple stats output (Juanjo)
903 - 16-bit and 15-bit RGB/BGR/GBR support (Bisqwit)
908 - some header fixes (Zdenek Kabelac <kabi at informatics.muni.cz>)
909 - many MMX optimizations (Nick Kurshev <nickols_k at mail.ru>)
910 - added configure system (actually a small shell script)
911 - added MPEG audio layer 1/2/3 decoding using LGPL'ed mpglib by
912 Michael Hipp (temporary solution - waiting for integer only
914 - fixed VIDIOCSYNC interrupt
915 - added Intel H.263 decoding support ('I263' AVI fourCC)
916 - added Real Video 1.0 decoding (needs further testing)
917 - simplified image formats again. Added PGM format (=grey
918 pgm). Renamed old PGM to PGMYUV.
919 - fixed msmpeg4 slice issues (tell me if you still find problems)
920 - fixed OpenDivX bugs with newer versions (added VOL header decoding)
921 - added support for MPlayer interface
922 - added macroblock skip optimization
923 - added MJPEG decoder
924 - added mmx/mmxext IDCT from libmpeg2
925 - added pgmyuvpipe, ppm, and ppm_pipe formats (original patch by Celer
926 <celer at shell.scrypt.net>)
927 - added pixel format conversion layer (e.g. for MJPEG or PPM)
928 - added deinterlacing option
930 - MPEG-4 vol header fixes (Jonathan Marsden <snmjbm at pacbell.net>)
931 - ARM optimizations (Lionel Ulmer <lionel.ulmer at free.fr>).
932 - Windows porting of file converter
933 - added MJPEG raw format (input/ouput)
934 - added JPEG image format support (input/output)
939 - fixed some std header definitions (Bjorn Lindgren
940 <bjorn.e.lindgren at telia.com>).
941 - added MPEG demuxer (MPEG-1 and 2 compatible).
943 - added prototype RM demuxer
944 - added AC3 decoding (done with libac3 by Aaron Holtzman)
945 - added decoding codec parameter guessing (.e.g. for MPEG, because the
946 header does not include them)
947 - fixed header generation in MPEG-1, AVI and ASF muxer: wmplayer can now
948 play them (only tested video)
949 - fixed H.263 white bug
950 - fixed phase rounding in img resample filter
951 - add MMX code for polyphase img resample filter
952 - added CPU autodetection
953 - added generic title/author/copyright/comment string handling (ASF and RM
955 - added SWF demux to extract MP3 track (not usable yet because no MP3
957 - added fractional frame rate support
958 - codecs are no longer searched by read_header() (should fix ffserver
964 - BGR24 patch (initial patch by Jeroen Vreeken <pe1rxq at amsat.org>)
965 - fixed raw yuv output
966 - added motion rounding support in MPEG-4
967 - fixed motion bug rounding in MSMPEG4
968 - added B-frame handling in video core
969 - added full MPEG-1 decoding support
970 - added partial (frame only) MPEG-2 support
971 - changed the FOURCC code for H.263 to "U263" to be able to see the
972 +AVI/H.263 file with the UB Video H.263+ decoder. MPlayer works with
973 this +codec ;) (JuanJo).
974 - Halfpel motion estimation after MB type selection (JuanJo)
975 - added pgm and .Y.U.V output format
976 - suppressed 'img:' protocol. Simply use: /tmp/test%d.[pgm|Y] as input or
978 - added pgmpipe I/O format (original patch from Martin Aumueller
979 <lists at reserv.at>, but changed completely since we use a format
980 instead of a protocol)
985 - added H.263/MPEG-4/MSMPEG4 decoding support. MPEG-4 decoding support
986 (for OpenDivX) is almost complete: 8x8 MVs and rounding are
987 missing. MSMPEG4 support is complete.
988 - added prototype MPEG-1 decoder. Only I- and P-frames handled yet (it
989 can decode ffmpeg MPEGs :-)).
990 - added libavcodec API documentation (see apiexample.c).
991 - fixed image polyphase bug (the bottom of some images could be
993 - added support for non clipped motion vectors (decoding only)
994 and image sizes non-multiple of 16
995 - added support for AC prediction (decoding only)
996 - added file overwrite confirmation (can be disabled with -y)
997 - added custom size picture to H.263 using H.263+ (Juanjo)
1002 - added MSMPEG4 (aka DivX) compatible encoder. Changed default codec
1003 of AVI and ASF to DIV3.
1004 - added -me option to set motion estimation method
1005 (default=log). suppressed redundant -hq option.
1006 - added options -acodec and -vcodec to force a given codec (useful for
1009 - improved dct_quantize speed
1010 - factorized some motion estimation code
1015 - removing grab code from ffserver and moved it to ffmpeg. Added
1016 multistream support to ffmpeg.
1017 - added timeshifting support for live feeds (option ?date=xxx in the
1019 - added high quality image resize code with polyphase filter (need
1020 mmx/see optimization). Enable multiple image size support in ffserver.
1021 - added multi live feed support in ffserver
1022 - suppressed master feature from ffserver (it should be done with an
1023 external program which opens the .ffm url and writes it to another
1025 - added preliminary support for video stream parsing (WAV and AVI half
1026 done). Added proper support for audio/video file conversion in
1028 - added preliminary support for video file sending from ffserver
1029 - redesigning I/O subsystem: now using URL based input and output
1031 - added WAV format support
1032 - added "tty user interface" to ffmpeg to stop grabbing gracefully
1033 - added MMX/SSE optimizations to SAD (Sums of Absolutes Differences)
1034 (Juan J. Sierralta P. a.k.a. "Juanjo" <juanjo at atmlab.utfsm.cl>)
1035 - added MMX DCT from mpeg2_movie 1.5 (Juanjo)
1036 - added new motion estimation algorithms, log and phods (Juanjo)
1037 - changed directories: libav for format handling, libavcodec for
1043 - added stereo in MPEG audio encoder
1048 - added 'high quality' mode which use motion vectors. It can be used in
1049 real time at low resolution.
1050 - fixed rounding problems which caused quality problems at high
1051 bitrates and large GOP size
1054 version 0.3.2: small fixes
1060 version 0.3.1: added avi/divx support
1063 - added MPEG-4 codec compatible with OpenDivX. It is based on the H.263 codec
1064 - added sound for flash format (not tested)
1067 version 0.3: initial public release