1 Entries are sorted chronologically from oldest to youngest within each release,
2 releases are sorted from youngest to oldest.
7 - DTS lossless extension (XLL) decoding (not lossless, disabled by default)
9 - DTS decoding through libdcadec
10 - Drop support for nvenc API before 5.0
13 - Intel QSV-accelerated H.264 encoding
14 - MMAL-accelerated H.264 decoding
15 - basic APNG encoder and muxer
16 - unpack DivX-style packed B-frames in MPEG-4 bitstream filter
17 - WebM Live Chunk Muxer
18 - nvenc level and tier options
20 - Canopus HQ/HQA decoder
21 - Automatically rotate videos based on metadata in ffmpeg
28 - RIFX format for *.wav files
30 - non continuous cache protocol support
32 - cropdetect support for non 8bpp, absolute (if limit >= 1) and relative (if limit < 1.0) threshold
33 - Camellia symmetric block cipher
34 - OpenH264 encoder wrapper
36 - Closed caption Decoder
37 - fspp, uspp, pp7 MPlayer postprocessing filters ported to native filters
39 - Twofish symmetric block cipher
40 - Support DNx100 (960x720@8)
41 - eq2 filter ported from libmpcodecs as eq filter
43 - Changed default DNxHD colour range in QuickTime .mov derivatives to mpeg range
44 - ported softpulldown filter from libmpcodecs as repeatfields filter
46 - RTP depacketizer for loss tolerant payload format for MP3 audio (RFC 5219)
47 - RTP depacketizer for AC3 payload format (RFC 4184)
48 - palettegen and paletteuse filters
49 - VP9 RTP payload format (draft 0) experimental depacketizer
50 - RTP depacketizer for DV (RFC 6469)
51 - DXVA2-accelerated HEVC decoding
52 - AAC ELD 480 decoding
53 - Intel QSV-accelerated H.264 decoding
54 - DSS SP decoder and DSS demuxer
55 - Fix stsd atom corruption in DNxHD QuickTimes
57 - RTP depacketization of T.140 text (RFC 4103)
58 - Port MIPS optimizations to 64-bit
62 - HEVC/H.265 RTP payload format (draft v6) packetizer
63 - SUP/PGS subtitle demuxer
64 - ffprobe -show_pixel_formats option
65 - CAST128 symmetric block cipher, ECB mode
66 - STL subtitle demuxer and decoder
67 - libutvideo YUV 4:2:2 10bit support
68 - XCB-based screen-grabber
69 - UDP-Lite support (RFC 3828)
71 - AVFoundation screen capturing support
72 - ffserver supports codec private options
73 - creating DASH compatible fragmented MP4, MPEG-DASH segmenting muxer
74 - WebP muxer with animated WebP support
75 - zygoaudio decoding support
77 - postproc visualization support
82 - ported lenscorrection filter from frei0r filter
83 - large optimizations in dctdnoiz to make it usable
84 - ICY metadata are now requested by default with the HTTP protocol
85 - support for using metadata in stream specifiers in fftools
86 - LZMA compression support in TIFF decoder
87 - H.261 RTP payload format (RFC 4587) depacketizer and experimental packetizer
88 - HEVC/H.265 RTP payload format (draft v6) depacketizer
89 - added codecview filter to visualize information exported by some codecs
90 - Matroska 3D support thorugh side data
91 - HTML generation using texi2html is deprecated in favor of makeinfo/texi2any
92 - silenceremove filter
96 - AC3 fixed-point decoding
97 - shuffleplanes filter
99 - Phantom Cine demuxer
100 - replaygain data export
102 - Alias PIX image encoder and decoder
103 - Improvements to the BRender PIX image decoder
104 - Improvements to the XBM decoder
106 - improvements to OpenEXR image decoder
107 - support decoding 16-bit RLE SGI images
108 - GDI screen grabbing for Windows
109 - alternative rendition support for HTTP Live Streaming
110 - AVFoundation input device
111 - Direct Stream Digital (DSD) decoder
112 - Magic Lantern Video (MLV) demuxer
113 - On2 AVC (Audio for Video) decoder
114 - support for decoding through DXVA2 in ffmpeg
115 - libbs2b-based stereo-to-binaural audio filter
116 - libx264 reference frames count limiting depending on level
117 - native Opus decoder
118 - display matrix export and rotation API
120 - showcqt multimedia filter
123 - hqx filter (hq2x, hq3x, hq4x)
125 - Image format auto-detection
126 - LRC demuxer and muxer
127 - Samba protocol (via libsmbclient)
128 - WebM DASH Manifest muxer
129 - libfribidi support in drawtext
134 - HNM version 4 demuxer and video decoder
136 - setsar/setdar filters now support variables in ratio expressions
138 - string validation in ffprobe
139 - support for decoding through VDPAU in ffmpeg (the -hwaccel option)
140 - complete Voxware MetaSound decoder
141 - remove mp3_header_compress bitstream filter
142 - Windows resource files for shared libraries
144 - stereoscopic 3d metadata handling
145 - WebP encoding via libwebp
147 - VP8 in Ogg demuxing
148 - side & metadata support in NUT
150 - XYZ12 rawvideo support in NUT
151 - Exif metadata support in WebP decoder
153 - Use metadata_header_padding to control padding in ID3 tags (currently used in
154 MP3, AIFF, and OMA files), FLAC header, and the AVI "junk" block.
155 - Mirillis FIC video decoder
159 - Autodetect VDA like all other hardware accelerations
160 - aliases and defaults for Ogg subtypes (opus, spx)
166 - perspective filter ported from libmpcodecs
167 - ffprobe -show_programs option
170 - when transcoding with ffmpeg (i.e. not streamcopying), -ss is now accurate
171 even when used as an input option. Previous behavior can be restored with
172 the -noaccurate_seek option.
173 - ffmpeg -t option can now be used for inputs, to limit the duration of
174 data read from an input file
175 - incomplete Voxware MetaSound decoder
176 - read EXIF metadata from JPEG
177 - DVB teletext decoder
178 - phase filter ported from libmpcodecs
180 - Opus support in Matroska
181 - FFV1 version 1.3 is stable and no longer experimental
182 - FFV1: YUVA(444,422,420) 9, 10 and 16 bit support
183 - changed DTS stream id in lavf mpeg ps muxer from 0x8a to 0x88, to be
184 more consistent with other muxers.
186 - pullup filter ported from libmpcodecs
187 - ffprobe -read_intervals option
188 - Lossless and alpha support for WebP decoder
189 - Error Resilient AAC syntax (ER AAC LC) decoding
190 - Low Delay AAC (ER AAC LD) decoding
191 - mux chapters in ASF files
192 - SFTP protocol (via libssh)
193 - libx264: add ability to encode in YUVJ422P and YUVJ444P
194 - Fraps: use BT.709 colorspace by default for yuv, as reference fraps decoder does
195 - make decoding alpha optional for prores, ffv1 and vp6 by setting
197 - ladspa wrapper filter
200 - max_error_rate parameter in ffmpeg
201 - PulseAudio output device
203 - Enhanced Low Delay AAC (ER AAC ELD) decoding (no LD SBR support)
204 - Linux framebuffer output device
206 - raw HEVC, HEVC in MOV/MP4, HEVC in Matroska, HEVC in MPEG-TS demuxing
213 - reference-counting for AVFrame and AVPacket data
214 - ffmpeg now fails when input options are used for output file
216 - support for Monkey's Audio versions from 3.93
217 - perms and aperms filters
218 - audio filtering support in ffplay
219 - 10% faster aac encoding on x86 and MIPS
220 - sine audio filter source
221 - WebP demuxing and decoding support
222 - ffmpeg options -filter_script and -filter_complex_script, which allow a
223 filtergraph description to be read from a file
225 - audio phaser filter
226 - separatefields filter
228 - uniform options syntax across all filters
232 - inverse telecine filters (fieldmatch and decimate)
233 - colorbalance filter
234 - colorchannelmixer filter
235 - The matroska demuxer can now output proper verbatim ASS packets. It will
236 become the default at the next libavformat major bump.
237 - decent native animated GIF encoding
240 - timeline editing with filters
241 - vidstabdetect and vidstabtransform filters for video stabilization using
244 - trim and atrim filters
245 - ffmpeg -t and -ss (output-only) options are now sample-accurate when
247 - Matroska muxer can now put the index at the beginning of the file.
248 - extractplanes filter
249 - avectorscope filter
254 - ADPCM IMA Radical decoder
256 - DCT denoiser filter (dctdnoiz)
257 - Wavelet denoiser filter ported from libmpcodecs as owdenoise (formerly "ow")
258 - Apple Intermediate Codec decoder
259 - Escape 130 video decoder
260 - FTP protocol support
262 - 3D LUT filter (lut3d)
263 - SMPTE 302M audio encoder
264 - support for slice multithreading in libavfilter
265 - Hald CLUT support (generation and filtering)
266 - VC-1 interlaced B-frame support
267 - support for WavPack muxing (raw and in Matroska)
268 - XVideo output device
270 - True Audio (TTA) encoder
272 - mcdeint filter ported from libmpcodecs
273 - sab filter ported from libmpcodecs
274 - ffprobe -show_chapters option
275 - WavPack encoding through libwavpack
277 - spp filter ported from libmpcodecs
284 - VDPAU hardware acceleration through normal hwaccel
286 - Error diffusion dither in Swscale
287 - Chained Ogg support
288 - Theora Midstream reconfiguration support
291 - filtering audio with unknown channel layout
292 - allpass, bass, bandpass, bandreject, biquad, equalizer, highpass, lowpass
293 and treble audio filter
294 - improved showspectrum filter, with multichannel support and sox-like colors
297 - il filter ported from libmpcodecs
298 - support ID3v2 tags in ASF files
299 - encrypted TTA stream decoding support
300 - RF64 support in WAV muxer
301 - noise filter ported from libmpcodecs
302 - Subtitles character encoding conversion
304 - stereo3d filter ported from libmpcodecs
309 - stream disposition information printing in ffprobe
310 - filter for loudness analysis following EBU R128
311 - Opus encoder using libopus
312 - ffprobe -select_streams option
313 - Pinnacle TARGA CineWave YUV16 decoder
314 - TAK demuxer, decoder and parser
316 - remove -same_quant, it hasn't worked for years
318 - X-Face image encoder and decoder
319 - 24-bit FLAC encoding
320 - multi-channel ALAC encoding up to 7.1
321 - metadata (INFO tag) support in WAV muxer
322 - subtitles raw text decoder
323 - support for building DLLs using MSVC
326 - metadata (info chunk) support in CAF muxer
327 - field filter ported from libmpcodecs
329 - geq filter ported from libmpcodecs
330 - remove ffserver daemon mode
332 - new expansion syntax for drawtext
333 - BRender PIX image decoder
334 - ffprobe -show_entries option
335 - ffprobe -sections option
336 - ADPCM IMA Dialogic decoder
338 - animated GIF decoder and demuxer
341 - IRCAM muxer/demuxer
342 - Paris Audio File demuxer
343 - Virtual concatenation demuxer
345 - JSON captions for TED talks decoding support
346 - SOX Resampler support in libswresample
348 - SGI RLE 8-bit / Silicon Graphics RLE 8-bit video decoder
349 - Silicon Graphics Motion Video Compressor 1 & 2 decoder
350 - Silicon Graphics Movie demuxer
352 - Resolution & pixel format change support with multithreading for H.264
353 - documentation split into per-component manuals
354 - pp (postproc) filter ported from MPlayer
355 - NIST Sphere demuxer
356 - MPL2, VPlayer, MPlayer, AQTitle, PJS and SubViewer v1 subtitles demuxers and decoders
358 - adobe and limelight publisher authentication in RTMP
360 - support building on the Plan 9 operating system
361 - kerndeint filter ported from MPlayer
362 - histeq filter ported from VirtualDub
363 - Megalux Frame demuxer
365 - Improved AVC Intra decoding support
370 - INI and flat output in ffprobe
371 - Scene detection in libavfilter
372 - Indeo Audio decoder
373 - channelsplit audio filter
374 - setnsamples audio filter
376 - ffprobe -show_data option
377 - RTMPT protocol support
378 - iLBC encoding/decoding via libilbc
379 - Microsoft Screen 1 decoder
381 - audio channel mapping filter
382 - Microsoft ATC Screen decoder
384 - TechSmith Screen Codec 2 decoder
385 - AAC encoding via libfdk-aac
386 - Microsoft Expression Encoder Screen decoder
387 - RTMPS protocol support
388 - RTMPTS protocol support
389 - RTMPE protocol support
390 - RTMPTE protocol support
391 - showwaves and showspectrum filter
392 - LucasArts SMUSH SANM playback support
393 - LucasArts SMUSH VIMA audio decoder (ADPCM)
394 - LucasArts SMUSH demuxer
395 - SAMI, RealText and SubViewer demuxers and decoders
396 - Heart Of Darkness PAF playback support
399 - new option: -progress
400 - 3GPP Timed Text encoder/decoder
401 - GeoTIFF decoder support
402 - ffmpeg -(no)stdin option
403 - Opus decoder using libopus
404 - caca output device using libcaca
405 - alphaextract and alphamerge filters
408 - Canopus Lossless Codec decoder
409 - bitmap subtitles in filters (experimental and temporary)
410 - MP2 encoding via TwoLAME
416 - SubRip encoder and decoder without embedded timing
417 - edge detection filter
419 - ffmpeg -shortest option is now per-output file
420 -pass and -passlogfile are now per-output stream
421 - volume measurement filter
423 - Microsoft Screen 2 decoder
424 - smartblur filter ported from MPlayer
426 - decimate filter ported from MPlayer
427 - RTP depacketization of JPEG
428 - Smooth Streaming live segmenter muxer
430 - sendcmd and asendcmd filters
431 - WebVTT demuxer and decoder (simple tags supported)
432 - RTP packetization of JPEG
433 - faststart option in the MOV/MP4 muxer
434 - support for building with MSVC
439 - Fixes: CVE-2012-2772, CVE-2012-2774, CVE-2012-2775, CVE-2012-2776, CVE-2012-2777,
440 CVE-2012-2779, CVE-2012-2782, CVE-2012-2783, CVE-2012-2784, CVE-2012-2785,
441 CVE-2012-2786, CVE-2012-2787, CVE-2012-2788, CVE-2012-2789, CVE-2012-2790,
442 CVE-2012-2791, CVE-2012-2792, CVE-2012-2793, CVE-2012-2794, CVE-2012-2795,
443 CVE-2012-2796, CVE-2012-2797, CVE-2012-2798, CVE-2012-2799, CVE-2012-2800,
444 CVE-2012-2801, CVE-2012-2802, CVE-2012-2803, CVE-2012-2804,
445 - v408 Quicktime and Microsoft AYUV Uncompressed 4:4:4:4 encoder and decoder
447 - CDXL demuxer and decoder
448 - Apple ProRes encoder
449 - ffprobe -count_packets and -count_frames options
450 - Sun Rasterfile Encoder
451 - ID3v2 attached pictures reading and writing
452 - WMA Lossless decoder
455 - libutvideo encoder wrapper (--enable-libutvideo)
458 - XBM encoder and decoder
459 - RealAudio Lossless decoder
462 - Metal Gear Solid: The Twin Snakes demuxer
463 - OpenEXR image decoder
465 - drop support for ffmpeg without libavfilter
466 - drawtext video filter: fontconfig support
467 - ffmpeg -benchmark_all option
468 - super2xsai filter ported from libmpcodecs
469 - add libavresample audio conversion library for compatibility
471 - Avid Meridien (AVUI) encoder and decoder
472 - accept + prefix to -pix_fmt option to disable automatic conversions.
473 - complete audio filtering in libavfilter and ffmpeg
478 - ffv1: support (draft) version 1.3
483 - Fixes: CVE-2011-3929, CVE-2011-3934, CVE-2011-3935, CVE-2011-3936,
484 CVE-2011-3937, CVE-2011-3940, CVE-2011-3941, CVE-2011-3944,
485 CVE-2011-3945, CVE-2011-3946, CVE-2011-3947, CVE-2011-3949,
486 CVE-2011-3950, CVE-2011-3951, CVE-2011-3952
487 - v410 Quicktime Uncompressed 4:4:4 10-bit encoder and decoder
488 - SBaGen (SBG) binaural beats script demuxer
490 - Timecode extraction in DV and MOV
491 - thumbnail video filter
492 - XML output in ffprobe
493 - asplit audio filter
494 - tinterlace video filter
495 - astreamsync audio filter
496 - amerge audio filter
497 - ISMV (Smooth Streaming) muxer
500 - XWD encoder and decoder
501 - Automatic thread count based on detection number of (available) CPU cores
502 - y41p Brooktree Uncompressed 4:1:1 12-bit encoder and decoder
503 - ffprobe -show_error option
504 - Avid 1:1 10-bit RGB Packer codec
505 - v308 Quicktime Uncompressed 4:4:4 encoder and decoder
506 - yuv4 libquicktime packed 4:2:0 encoder and decoder
507 - ffprobe -show_frames option
508 - silencedetect audio filter
509 - ffprobe -show_program_version, -show_library_versions, -show_versions options
510 - rv34: frame-level multi-threading
511 - optimized iMDCT transform on x86 using SSE for for mpegaudiodec
512 - Improved PGS subtitle decoder
513 - dumpgraph option to lavfi device
514 - r210 and r10k encoders
515 - ffwavesynth decoder
518 - support encoding and decoding 4-channel SGI images
523 - openal input device added
524 - boxblur filter added
526 - Flash Screen Video 2 decoder
527 - lavfi input device added
528 - added avconv, which is almost the same for now, except
529 for a few incompatible changes in the options, which will hopefully make them
530 easier to use. The changes are:
531 * The options placement is now strictly enforced! While in theory the
532 options for ffmpeg should be given in [input options] -i INPUT [output
533 options] OUTPUT order, in practice it was possible to give output options
534 before the -i and it mostly worked. Except when it didn't - the behavior was
535 a bit inconsistent. In avconv, it is not possible to mix input and output
536 options. All non-global options are reset after an input or output filename.
537 * All per-file options are now truly per-file - they apply only to the next
538 input or output file and specifying different values for different files
539 will now work properly (notably -ss and -t options).
540 * All per-stream options are now truly per-stream - it is possible to
541 specify which stream(s) should a given option apply to. See the Stream
542 specifiers section in the avconv manual for details.
543 * In ffmpeg some options (like -newvideo/-newaudio/...) are irregular in the
544 sense that they're specified after the output filename instead of before,
545 like all other options. In avconv this irregularity is removed, all options
546 apply to the next input or output file.
547 * -newvideo/-newaudio/-newsubtitle options were removed. Not only were they
548 irregular and highly confusing, they were also redundant. In avconv the -map
549 option will create new streams in the output file and map input streams to
550 them. E.g. avconv -i INPUT -map 0 OUTPUT will create an output stream for
551 each stream in the first input file.
552 * The -map option now has slightly different and more powerful syntax:
553 + Colons (':') are used to separate file index/stream type/stream index
554 instead of dots. Comma (',') is used to separate the sync stream instead
555 of colon.. This is done for consistency with other options.
556 + It's possible to specify stream type. E.g. -map 0:a:2 creates an
557 output stream from the third input audio stream.
558 + Omitting the stream index now maps all the streams of the given type,
559 not just the first. E.g. -map 0:s creates output streams for all the
560 subtitle streams in the first input file.
561 + Since -map can now match multiple streams, negative mappings were
562 introduced. Negative mappings disable some streams from an already
563 defined map. E.g. '-map 0 -map -0:a:1' means 'create output streams for
564 all the stream in the first input file, except for the second audio
566 * There is a new option -c (or -codec) for choosing the decoder/encoder to
567 use, which allows to precisely specify target stream(s) consistently with
568 other options. E.g. -c:v lib264 sets the codec for all video streams, -c:a:0
569 libvorbis sets the codec for the first audio stream and -c copy copies all
570 the streams without reencoding. Old -vcodec/-acodec/-scodec options are now
572 * It is now possible to precisely specify which stream should an AVOption
573 apply to. E.g. -b:v:0 2M sets the bitrate for the first video stream, while
574 -b:a 128k sets the bitrate for all audio streams. Note that the old -ab 128k
575 syntax is deprecated and will stop working soon.
576 * -map_chapters now takes only an input file index and applies to the next
577 output file. This is consistent with how all the other options work.
578 * -map_metadata now takes only an input metadata specifier and applies to
579 the next output file. Output metadata specifier is now part of the option
580 name, similarly to the AVOptions/map/codec feature above.
581 * -metadata can now be used to set metadata on streams and chapters, e.g.
582 -metadata:s:1 language=eng sets the language of the first stream to 'eng'.
583 This made -vlang/-alang/-slang options redundant, so they were removed.
584 * -qscale option now uses stream specifiers and applies to all streams, not
585 just video. I.e. plain -qscale number would now apply to all streams. To get
586 the old behavior, use -qscale:v. Also there is now a shortcut -q for -qscale
587 and -aq is now an alias for -q:a.
588 * -vbsf/-absf/-sbsf options were removed and replaced by a -bsf option which
589 uses stream specifiers. Use -bsf:v/a/s instead of the old options.
590 * -itsscale option now uses stream specifiers, so its argument is only the
592 * -intra option was removed, use -g 0 for the same effect.
593 * -psnr option was removed, use -flags +psnr for the same effect.
594 * -vf option is now an alias to the new -filter option, which uses stream specifiers.
595 * -vframes/-aframes/-dframes options are now aliases to the new -frames option.
596 * -vtag/-atag/-stag options are now aliases to the new -tag option.
599 - ashowinfo filter added
600 - Windows Media Image decoder
601 - amovie source added
603 - Speex encoder via libspeex
604 - JSON output in ffprobe
606 - Optional C++ Support (needed for libstagefright)
607 - H.264 Decoding on Android via Stagefright
609 - BIN/XBIN/ADF/IDF text file decoder
610 - aconvert audio filter added
611 - audio support to lavfi input device added
612 - libcdio-paranoia input device for audio CD grabbing
613 - Apple ProRes decoder
614 - CELT in Ogg demuxing
615 - G.723.1 demuxer and decoder
616 - libmodplug support (--enable-libmodplug)
617 - VC-1 interlaced decoding
618 - libutvideo wrapper (--enable-libutvideo)
619 - aevalsrc audio source added
621 - Speex encoding via libspeex
622 - 4:2:2 H.264 decoding support
623 - 4:2:2 and 4:4:4 H.264 encoding with libx264
624 - Pulseaudio input device
626 - Video Decoder Acceleration (VDA) HWAccel module.
627 - replacement Indeo 3 decoder
628 - new ffmpeg option: -map_channel
629 - volume audio filter added
630 - earwax audio filter added
631 - libv4l2 support (--enable-libv4l2)
632 - TLS/SSL and HTTPS protocol support
633 - AVOptions API rewritten and documented
634 - most of CODEC_FLAG2_*, some CODEC_FLAG_* and many codec-specific fields in
635 AVCodecContext deprecated. Codec private options should be used instead.
636 - Properly working defaults in libx264 wrapper, support for native presets.
637 - Encrypted OMA files support
638 - Discworld II BMV decoding support
640 - OS X Video Decoder Acceleration (VDA) support
641 - compact and csv output in ffprobe
643 - IFF Amiga Continuous Bitmap (ACBM) decoder
645 - CRI ADX audio format muxer and demuxer
646 - Playstation Portable PMP format demuxer
647 - Microsoft Windows ICO demuxer
649 - PCM format support in OMA demuxer
651 - new option: -report
652 - Dxtory capture format decoder
654 - Simple segmenting muxer
661 - many many things we forgot because we rather write code than changelogs
662 - WebM support in Matroska de/muxer
663 - low overhead Ogg muxing
665 - VP8 de/encoding via libvpx
666 - Demuxer for On2's IVF format
667 - Pictor/PC Paint decoder
669 - HE-AAC v2 encoding with libaacplus
670 - libfaad2 wrapper removed
671 - DTS-ES extension (XCh) decoding support
673 - RTSP tunneling over HTTP
674 - RTP depacketization of SVQ3
675 - -strict inofficial replaced by -strict unofficial
676 - ffplay -exitonkeydown and -exitonmousedown options added
677 - native GSM / GSM MS decoder
678 - RTP depacketization of QDM2
679 - ANSI/ASCII art playback system
680 - Lego Mindstorms RSO de/muxer
681 - libavcore added (and subsequently removed)
682 - SubRip subtitle file muxer and demuxer
683 - Chinese AVS encoding via libxavs
684 - ffprobe -show_packets option added
685 - RTP packetization of Theora and Vorbis
686 - RTP depacketization of MP4A-LATM
687 - RTP packetization and depacketization of VP8
689 - Apple HTTP Live Streaming demuxer
692 - G.722 ADPCM audio encoder/decoder
695 - frei0r wrapper filter
696 - change crop filter syntax to width:height:x:y
697 - make the crop filter accept parametric expressions
698 - make ffprobe accept AVFormatContext options
701 - Demuxer for Leitch/Harris' VR native stream format (LXF)
702 - RTP depacketization of the X-QT QuickTime format
703 - SAP (Session Announcement Protocol, RFC 2974) muxer and demuxer
705 - ffmpeg -crop* options removed
706 - transpose filter added
707 - ffmpeg -force_key_frames option added
708 - demuxer for receiving raw rtp:// URLs without an SDP description
709 - single stream LATM/LOAS decoder
710 - setpts filter added
711 - Win64 support for optimized x86 assembly functions
712 - MJPEG/AVI1 to JPEG/JFIF bitstream filter
713 - ASS subtitle encoder and decoder
714 - IEC 61937 encapsulation for E-AC-3, TrueHD, DTS-HD (for HDMI passthrough)
715 - overlay filter added
716 - rename aspect filter to setdar, and pixelaspect to setsar
718 - Mobotix .mxg demuxer
719 - frei0r source added
720 - hqdn3d filter added
721 - RTP depacketization of QCELP
723 - gradfun filter added
725 - replace the ocv_smooth filter with a more generic ocv filter
726 - Windows Televison (WTV) demuxer
727 - FFmpeg metadata format muxer and demuxer
728 - SubRip (srt) subtitle encoder and decoder
729 - floating-point AC-3 encoder added
731 - ffmpeg -copytb option added
733 - Wing Commander IV movies decoder added
735 - Bink version 'b' audio and video decoder
736 - Bitmap Brothers JV playback system
737 - Apple HTTP Live Streaming protocol handler
738 - sndio support for playback and record
739 - Linux framebuffer input device added
740 - Chronomaster DFA decoder
742 - MicroDVD subtitle file muxer and demuxer
743 - Playstation Portable PMP format demuxer
744 - fieldorder video filter added
745 - AAC encoding via libvo-aacenc
746 - AMR-WB encoding via libvo-amrwbenc
748 - Mobotix MxPEG decoder
749 - VP8 frame-multithreading
750 - NEON optimizations for VP8
751 - Lots of deprecated API cruft removed
752 - fft and imdct optimizations for AVX (Sandy Bridge) processors
753 - showinfo filter added
754 - SMPTE 302M AES3 audio decoder
755 - Apple Core Audio Format muxer
756 - 9bit and 10bit per sample support in the H.264 decoder
757 - 9bit and 10bit FFV1 encoding / decoding
759 - select filter added
760 - sdl output device added
761 - libmpcodecs video filter support (3 times as many filters than before)
762 - mpeg2 aspect ratio dection fixed
763 - libxvid aspect pickiness fixed
764 - Frame multithreaded decoding
765 - E-AC-3 audio encoder
766 - ac3enc: add channel coupling support
767 - floating-point sample format support to the ac3, eac3, dca, aac, and vorbis decoders.
768 - H264/MPEG frame-level multi-threading
769 - All av_metadata_* functions renamed to av_dict_* and moved to libavutil
770 - 4:4:4 H.264 decoding support
771 - 10-bit H.264 optimizations for x86
772 - lut, lutrgb, and lutyuv filters added
773 - buffersink libavfilter sink added
774 - Bump libswscale for recently reported ABI break
775 - New J2K encoder (via OpenJPEG)
780 - all the changes for 0.8, but keeping API/ABI compatibility with the 0.6 release
785 - PB-frame decoding for H.263
786 - deprecated vhook subsystem removed
787 - deprecated old scaler removed
789 - Alpha channel scaler
791 - RTP packetization of H.263
792 - RTP packetization of AMR
793 - RTP depacketization of Vorbis
794 - CorePNG decoding support
795 - Cook multichannel decoding support
796 - introduced avlanguage helpers in libavformat
797 - 8088flex TMV demuxer and decoder
798 - per-stream language-tags extraction in asfdec
799 - V210 decoder and encoder
800 - remaining GPL parts in AC-3 decoder converted to LGPL
802 - SoX native format muxer and demuxer
803 - AMR-NB decoding/encoding, AMR-WB decoding via OpenCORE libraries
805 - Electronic Arts Madcow decoder
806 - DivX (XSUB) subtitle encoder
807 - nonfree libamr support for AMR-NB/WB decoding/encoding removed
808 - experimental AAC encoder
809 - RTP depacketization of ASF and RTSP from WMS servers
810 - RTMP support in libavformat
811 - noX handling for OPT_BOOL X options
813 - IEC-61937 compatible Muxer
815 - Bluray (PGS) subtitle decoder
816 - LPCM support in MPEG-TS (HDMV RID as found on Blu-ray disks)
818 - Core Audio Format demuxer
820 - MD STUDIO audio demuxer
821 - RF64 support in WAV demuxer
822 - MPEG-4 Audio Lossless Coding (ALS) decoder
823 - -formats option split into -formats, -codecs, -bsfs, and -protocols
825 - CDG demuxer and decoder
827 - Auravision Aura 1 and 2 decoders
828 - Deluxe Paint Animation playback system
830 - Adobe Filmstrip muxer and demuxer
831 - RTP depacketization of H.263
832 - Bink demuxer and audio/video decoders
833 - enable symbol versioning by default for linkers that support it
834 - IFF PBM/ILBM bitmap decoder
837 - RTP depacketization of AMR
843 - Kega Game Video (KGV1) decoder
844 - VorbisComment writing for FLAC, Ogg FLAC and Ogg Speex files
845 - RTP depacketization of Theora
846 - HTTP Digest authentication
847 - RTMP/RTMPT/RTMPS/RTMPE/RTMPTE protocol support via librtmp
848 - Psygnosis YOP demuxer and video decoder
849 - spectral extension support in the E-AC-3 decoder
850 - unsharp video filter
851 - RTP hinting in the mov/3gp/mp4 muxer
852 - Dirac in Ogg demuxing
853 - seek to keyframes in Ogg
854 - 4:2:2 and 4:4:4 Theora decoding
855 - 35% faster VP3/Theora decoding
856 - faster AAC decoding
857 - faster H.264 decoding
858 - RealAudio 1.0 (14.4K) encoder
863 - DV50 AKA DVCPRO50 encoder, decoder, muxer and demuxer
864 - TechSmith Camtasia (TSCC) video decoder
865 - IBM Ultimotion (ULTI) video decoder
866 - Sierra Online audio file demuxer and decoder
867 - Apple QuickDraw (qdrw) video decoder
868 - Creative ADPCM audio decoder (16 bits as well as 8 bits schemes)
869 - Electronic Arts Multimedia (WVE/UV2/etc.) file demuxer
870 - Miro VideoXL (VIXL) video decoder
871 - H.261 video encoder
873 - Nullsoft Video (NSV) file demuxer
874 - Shorten audio decoder
876 - Apple Lossless Audio Codec (ALAC) decoder
877 - Winnov WNV1 video decoder
878 - Autodesk Animator Studio Codec (AASC) decoder
879 - Indeo 2 video decoder
880 - Fraps FPS1 video decoder
881 - Snow video encoder/decoder
882 - Sonic audio encoder/decoder
883 - Vorbis audio decoder
884 - Macromedia ADPCM decoder
885 - Duck TrueMotion 2 video decoder
886 - support for decoding FLX and DTA extensions in FLIC files
887 - H.264 custom quantization matrices support
888 - ffserver fixed, it should now be usable again
890 - Real Cooker audio decoder
891 - TrueSpeech audio decoder
892 - WMA2 audio decoder fixed, now all files should play correctly
893 - RealAudio 14.4 and 28.8 decoders fixed
895 - build system improvements
896 - tabs and trailing whitespace removed from the codebase
897 - CamStudio video decoder
898 - AIFF/AIFF-C audio format, encoding and decoding
899 - ADTS AAC file reading and writing
900 - Creative VOC file reading and writing
901 - American Laser Games multimedia (*.mm) playback system
902 - Zip Motion Blocks Video decoder
903 - improved Theora/VP3 decoder
904 - True Audio (TTA) decoder
905 - AVS demuxer and video decoder
907 - Smacker demuxer and decoder
908 - NuppelVideo/MythTV demuxer and RTjpeg decoder
910 - MPEG-2 intra VLC support
911 - MPEG-2 4:2:2 encoder
912 - Flash Screen Video decoder
914 - Chinese AVS decoder
917 - VC-1/WMV3/WMV9 video decoder
920 - VMware video decoder
923 - WavPack lossless audio decoder
924 - Targa (.TGA) picture decoder
925 - Vorbis audio encoder
926 - Delphine Software .cin demuxer/audio and video decoder
927 - Tiertex .seq demuxer/video decoder
929 - TIFF picture encoder and decoder
930 - GIF picture decoder
931 - Intel Music Coder decoder
932 - Zip Motion Blocks Video encoder
934 - Flash Screen Video encoder
935 - Theora encoding via libtheora
938 - GSM-MS encoder and decoder
940 - DXA demuxer and decoder
942 - Gamecube movie (.THP) playback system
943 - Blackfin optimizations
944 - Interplay C93 demuxer and video decoder
945 - Bethsoft VID demuxer and video decoder
948 - V.Flash PTX decoder
949 - RoQ muxer, RoQ audio encoder
950 - Renderware TXD demuxer and decoder
951 - extern C declarations for C++ removed from headers
952 - sws_flags command line option
956 - OS/2 support removed and restored again
959 - additional SPARC (VIS) optimizations
961 - slice-based parallel H.264 decoding
962 - Monkey's Audio demuxer and decoder
963 - AMV audio and video decoder
965 - H.264 PAFF decoding
966 - Nellymoser ASAO decoder
967 - Beam Software SIFF demuxer and decoder
968 - libvorbis Vorbis decoding removed in favor of native decoder
969 - IntraX8 (J-Frame) subdecoder for WMV2 and VC-1
970 - Ogg (Theora, Vorbis and FLAC) muxer
971 - The "device" muxers and demuxers are now in a new libavdevice library
972 - PC Paintbrush PCX decoder
973 - Sun Rasterfile decoder
974 - TechnoTrend PVA demuxer
975 - Linux Media Labs MPEG-4 (LMLM4) demuxer
976 - AVM2 (Flash 9) SWF muxer
977 - QT variant of IMA ADPCM encoder
979 - iPod/iPhone compatible mp4 muxer
981 - MSN TCP Webcam stream demuxer
982 - RL2 demuxer / decoder
985 - non-recursive Makefiles
987 - MAXIS EA XA (.xa) demuxer / decoder
991 - Electronic Arts CMV decoder
992 - Motion Pixels Video decoder
993 - Motion Pixels MVI demuxer
994 - removed animated GIF decoder/demuxer
995 - D-Cinema audio muxer
996 - Electronic Arts TGV decoder
997 - Apple Lossless Audio Codec (ALAC) encoder
999 - floating point PCM encoder/decoder
1001 - DV100 AKA DVCPRO HD decoder and demuxer
1002 - E-AC-3 support added to AC-3 decoder
1003 - Nellymoser ASAO encoder
1004 - ASS and SSA demuxer and muxer
1005 - liba52 wrapper removed
1006 - SVQ3 watermark decoding support
1007 - Speex decoding via libspeex
1008 - Electronic Arts TGQ decoder
1010 - QCELP / PureVoice decoder
1012 - hybrid WavPack support
1013 - R3D REDCODE demuxer
1014 - ALSA support for playback and record
1015 - Electronic Arts TQI decoder
1016 - OpenJPEG based JPEG 2000 decoder
1017 - NC (NC4600) camera file demuxer
1018 - Gopher client support
1020 - generic metadata API
1021 - flash ScreenVideo2 encoder
1026 - DV encoder, DV muxer
1027 - Microsoft RLE video decoder
1028 - Microsoft Video-1 decoder
1029 - Apple Animation (RLE) decoder
1030 - Apple Graphics (SMC) decoder
1031 - Apple Video (RPZA) decoder
1033 - Sega FILM (CPK) file demuxer
1034 - Westwood multimedia support (VQA & AUD files)
1035 - Id Quake II CIN playback support
1036 - 8BPS video decoder
1037 - FLIC playback support
1038 - RealVideo 2.0 (RV20) decoder
1039 - Duck TrueMotion v1 (DUCK) video decoder
1040 - Sierra VMD demuxer and video decoder
1041 - MSZH and ZLIB decoder support
1042 - SVQ1 video encoder
1045 - rate distortion optimal cbp support
1046 - rate distorted optimal ac prediction for MPEG-4
1047 - rate distorted optimal lambda->qp support
1048 - AAC encoding with libfaac
1049 - Sunplus JPEG codec (SP5X) support
1050 - use Lagrange multipler instead of QP for ratecontrol
1051 - Theora/VP3 decoding support
1052 - XA and ADX ADPCM codecs
1053 - export MPEG-2 active display area / pan scan
1054 - Add support for configuring with IBM XLC
1055 - floating point AAN DCT
1056 - initial support for zygo video (not complete)
1058 - new audio/video parser API
1060 - av_read_frame() and av_seek_frame() support
1061 - missing last frame fixes
1062 - seek by mouse in ffplay
1063 - noise reduction of DCT coefficients
1064 - H.263 OBMC & 4MV support
1065 - H.263 alternative inter vlc support
1067 - H.263 slice structured mode
1068 - interlaced DCT support for MPEG-2 encoding
1069 - stuffing to stay above min_bitrate
1070 - MB type & QP visualization
1071 - frame stepping for ffplay
1072 - interlaced motion estimation
1073 - alternate scantable support
1074 - SVCD scan offset support
1075 - closed GOP support
1077 - quantizer noise shaping
1078 - G.726 ADPCM audio codec
1080 - multithreaded/SMP motion estimation
1081 - multithreaded/SMP encoding for MPEG-1/MPEG-2/MPEG-4/H.263
1082 - multithreaded/SMP decoding for MPEG-2
1084 - Metrowerks CodeWarrior suppport
1085 - H.263+ custom pcf support
1086 - nicer output for 'ffmpeg -formats'
1088 - SGI image format, encoding and decoding
1089 - H.264 loop filter support
1090 - H.264 CABAC support
1091 - nicer looking arrows for the motion vector visualization
1092 - improved VCD support
1093 - audio timestamp drift compensation
1094 - MPEG-2 YUV 422/444 support
1095 - polyphase kaiser windowed sinc and blackman nuttall windowed sinc audio resample
1096 - better image scaling
1098 - correctly interleave packets during encoding
1099 - VIS optimized motion compensation
1100 - intra_dc_precision>0 encoding support
1101 - support reuse of motion vectors/MB types/field select values of the source video
1102 - more accurate deblock filter
1104 - many optimizations and bugfixes
1105 - FunCom ISS audio file demuxer and according ADPCM decoding
1110 - MPEG-2 video encoding (Michael)
1111 - Id RoQ playback subsystem (Mike Melanson and Tim Ferguson)
1112 - Wing Commander III Movie (.mve) file playback subsystem (Mike Melanson
1114 - Xan DPCM audio decoder (Mario Brito)
1115 - Interplay MVE playback subsystem (Mike Melanson)
1116 - Duck DK3 and DK4 ADPCM audio decoders (Mike Melanson)
1121 - RealAudio 1.0 (14_4) and 2.0 (28_8) native decoders. Author unknown, code from mplayerhq
1122 (originally from public domain player for Amiga at http://www.honeypot.net/audio)
1123 - current version now also compiles with older GCC (Fabrice)
1124 - 4X multimedia playback system including 4xm file demuxer (Mike
1125 Melanson), and 4X video and audio codecs (Michael)
1126 - Creative YUV (CYUV) decoder (Mike Melanson)
1127 - FFV1 codec (our very simple lossless intra only codec, compresses much better
1128 than HuffYUV) (Michael)
1129 - ASV1 (Asus), H.264, Intel indeo3 codecs have been added (various)
1130 - tiny PNG encoder and decoder, tiny GIF decoder, PAM decoder (PPM with
1131 alpha support), JPEG YUV colorspace support. (Fabrice Bellard)
1132 - ffplay has been replaced with a newer version which uses SDL (optionally)
1133 for multiplatform support (Fabrice)
1134 - Sorenson Version 3 codec (SVQ3) support has been added (decoding only) - donated
1136 - AMR format has been added (Johannes Carlsson)
1137 - 3GP support has been added (Johannes Carlsson)
1138 - VP3 codec has been added (Mike Melanson)
1139 - more MPEG-1/2 fixes
1140 - better multiplatform support, MS Visual Studio fixes (various)
1141 - AltiVec optimizations (Magnus Damn and others)
1142 - SH4 processor support has been added (BERO)
1143 - new public interfaces (avcodec_get_pix_fmt) (Roman Shaposhnick)
1144 - VOB streaming support (Brian Foley)
1145 - better MP3 autodetection (Andriy Rysin)
1146 - qpel encoding (Michael)
1147 - 4mv+b frames encoding finally fixed (Michael)
1148 - chroma ME (Michael)
1149 - 5 comparison functions for ME (Michael)
1150 - B-frame encoding speedup (Michael)
1151 - WMV2 codec (unfinished - Michael)
1152 - user specified diamond size for EPZS (Michael)
1153 - Playstation STR playback subsystem, still experimental (Mike and Michael)
1154 - ASV2 codec (Michael)
1155 - CLJR decoder (Alex)
1157 .. And lots more new enhancements and fixes.
1162 - completely new integer only MPEG audio layer 1/2/3 decoder rewritten
1164 - Recoded DCT and motion vector search with gcc (no longer depends on nasm)
1165 - fix quantization bug in AC3 encoder
1166 - added PCM codecs and format. Corrected WAV/AVI/ASF PCM issues
1167 - added prototype ffplay program
1168 - added GOB header parsing on H.263/H.263+ decoder (Juanjo)
1169 - bug fix on MCBPC tables of H.263 (Juanjo)
1170 - bug fix on DC coefficients of H.263 (Juanjo)
1171 - added Advanced Prediction Mode on H.263/H.263+ decoder (Juanjo)
1172 - now we can decode H.263 streams found in QuickTime files (Juanjo)
1173 - now we can decode H.263 streams found in VIVO v1 files(Juanjo)
1174 - preliminary RTP "friendly" mode for H.263/H.263+ coding. (Juanjo)
1175 - added GOB header for H.263/H.263+ coding on RTP mode (Juanjo)
1176 - now H.263 picture size is returned on the first decoded frame (Juanjo)
1177 - added first regression tests
1178 - added MPEG-2 TS demuxer
1179 - new demux API for libav
1180 - more accurate and faster IDCT (Michael)
1181 - faster and entropy-controlled motion search (Michael)
1182 - two pass video encoding (Michael)
1183 - new video rate control (Michael)
1184 - added MSMPEG4V1, MSMPEGV2 and WMV1 support (Michael)
1185 - great performance improvement of video encoders and decoders (Michael)
1186 - new and faster bit readers and vlc parsers (Michael)
1187 - high quality encoding mode: tries all macroblock/VLC types (Michael)
1188 - added DV video decoder
1189 - preliminary RTP/RTSP support in ffserver and libavformat
1190 - H.263+ AIC decoding/encoding support (Juanjo)
1191 - VCD MPEG-PS mode (Juanjo)
1192 - PSNR stuff (Juanjo)
1193 - simple stats output (Juanjo)
1194 - 16-bit and 15-bit RGB/BGR/GBR support (Bisqwit)
1199 - some header fixes (Zdenek Kabelac <kabi at informatics.muni.cz>)
1200 - many MMX optimizations (Nick Kurshev <nickols_k at mail.ru>)
1201 - added configure system (actually a small shell script)
1202 - added MPEG audio layer 1/2/3 decoding using LGPL'ed mpglib by
1203 Michael Hipp (temporary solution - waiting for integer only
1205 - fixed VIDIOCSYNC interrupt
1206 - added Intel H.263 decoding support ('I263' AVI fourCC)
1207 - added Real Video 1.0 decoding (needs further testing)
1208 - simplified image formats again. Added PGM format (=grey
1209 pgm). Renamed old PGM to PGMYUV.
1210 - fixed msmpeg4 slice issues (tell me if you still find problems)
1211 - fixed OpenDivX bugs with newer versions (added VOL header decoding)
1212 - added support for MPlayer interface
1213 - added macroblock skip optimization
1214 - added MJPEG decoder
1215 - added mmx/mmxext IDCT from libmpeg2
1216 - added pgmyuvpipe, ppm, and ppm_pipe formats (original patch by Celer
1217 <celer at shell.scrypt.net>)
1218 - added pixel format conversion layer (e.g. for MJPEG or PPM)
1219 - added deinterlacing option
1221 - MPEG-4 vol header fixes (Jonathan Marsden <snmjbm at pacbell.net>)
1222 - ARM optimizations (Lionel Ulmer <lionel.ulmer at free.fr>).
1223 - Windows porting of file converter
1224 - added MJPEG raw format (input/output)
1225 - added JPEG image format support (input/output)
1230 - fixed some std header definitions (Bjorn Lindgren
1231 <bjorn.e.lindgren at telia.com>).
1232 - added MPEG demuxer (MPEG-1 and 2 compatible).
1234 - added prototype RM demuxer
1235 - added AC3 decoding (done with libac3 by Aaron Holtzman)
1236 - added decoding codec parameter guessing (.e.g. for MPEG, because the
1237 header does not include them)
1238 - fixed header generation in MPEG-1, AVI and ASF muxer: wmplayer can now
1239 play them (only tested video)
1240 - fixed H.263 white bug
1241 - fixed phase rounding in img resample filter
1242 - add MMX code for polyphase img resample filter
1243 - added CPU autodetection
1244 - added generic title/author/copyright/comment string handling (ASF and RM
1246 - added SWF demux to extract MP3 track (not usable yet because no MP3
1248 - added fractional frame rate support
1249 - codecs are no longer searched by read_header() (should fix ffserver
1255 - BGR24 patch (initial patch by Jeroen Vreeken <pe1rxq at amsat.org>)
1256 - fixed raw yuv output
1257 - added motion rounding support in MPEG-4
1258 - fixed motion bug rounding in MSMPEG4
1259 - added B-frame handling in video core
1260 - added full MPEG-1 decoding support
1261 - added partial (frame only) MPEG-2 support
1262 - changed the FOURCC code for H.263 to "U263" to be able to see the
1263 +AVI/H.263 file with the UB Video H.263+ decoder. MPlayer works with
1264 this +codec ;) (JuanJo).
1265 - Halfpel motion estimation after MB type selection (JuanJo)
1266 - added pgm and .Y.U.V output format
1267 - suppressed 'img:' protocol. Simply use: /tmp/test%d.[pgm|Y] as input or
1269 - added pgmpipe I/O format (original patch from Martin Aumueller
1270 <lists at reserv.at>, but changed completely since we use a format
1271 instead of a protocol)
1276 - added H.263/MPEG-4/MSMPEG4 decoding support. MPEG-4 decoding support
1277 (for OpenDivX) is almost complete: 8x8 MVs and rounding are
1278 missing. MSMPEG4 support is complete.
1279 - added prototype MPEG-1 decoder. Only I- and P-frames handled yet (it
1280 can decode ffmpeg MPEGs :-)).
1281 - added libavcodec API documentation (see apiexample.c).
1282 - fixed image polyphase bug (the bottom of some images could be
1284 - added support for non clipped motion vectors (decoding only)
1285 and image sizes non-multiple of 16
1286 - added support for AC prediction (decoding only)
1287 - added file overwrite confirmation (can be disabled with -y)
1288 - added custom size picture to H.263 using H.263+ (Juanjo)
1293 - added MSMPEG4 (aka DivX) compatible encoder. Changed default codec
1294 of AVI and ASF to DIV3.
1295 - added -me option to set motion estimation method
1296 (default=log). suppressed redundant -hq option.
1297 - added options -acodec and -vcodec to force a given codec (useful for
1300 - improved dct_quantize speed
1301 - factorized some motion estimation code
1306 - removing grab code from ffserver and moved it to ffmpeg. Added
1307 multistream support to ffmpeg.
1308 - added timeshifting support for live feeds (option ?date=xxx in the
1310 - added high quality image resize code with polyphase filter (need
1311 mmx/see optimization). Enable multiple image size support in ffserver.
1312 - added multi live feed support in ffserver
1313 - suppressed master feature from ffserver (it should be done with an
1314 external program which opens the .ffm url and writes it to another
1316 - added preliminary support for video stream parsing (WAV and AVI half
1317 done). Added proper support for audio/video file conversion in
1319 - added preliminary support for video file sending from ffserver
1320 - redesigning I/O subsystem: now using URL based input and output
1322 - added WAV format support
1323 - added "tty user interface" to ffmpeg to stop grabbing gracefully
1324 - added MMX/SSE optimizations to SAD (Sums of Absolutes Differences)
1325 (Juan J. Sierralta P. a.k.a. "Juanjo" <juanjo at atmlab.utfsm.cl>)
1326 - added MMX DCT from mpeg2_movie 1.5 (Juanjo)
1327 - added new motion estimation algorithms, log and phods (Juanjo)
1328 - changed directories: libav for format handling, libavcodec for
1334 - added stereo in MPEG audio encoder
1339 - added 'high quality' mode which use motion vectors. It can be used in
1340 real time at low resolution.
1341 - fixed rounding problems which caused quality problems at high
1342 bitrates and large GOP size
1345 version 0.3.2: small fixes
1351 version 0.3.1: added avi/divx support
1354 - added MPEG-4 codec compatible with OpenDivX. It is based on the H.263 codec
1355 - added sound for flash format (not tested)
1358 version 0.3: initial public release