1 Entries are sorted chronologically from oldest to youngest within each release,
2 releases are sorted from youngest to oldest.
5 - INI and flat output in ffprobe
6 - Scene detection in libavfilter
8 - channelsplit audio filter
9 - setnsamples audio filter
11 - ffprobe -show_data option
12 - RTMPT protocol support
13 - iLBC encoding/decoding via libilbc
14 - Microsoft Screen 1 decoder
16 - audio channel mapping filter
17 - Microsoft ATC Screen decoder
19 - TechSmith Screen Codec 2 decoder
20 - AAC encoding via libfdk-aac
21 - Microsoft Expression Encoder Screen decoder
22 - RTMPS protocol support
23 - RTMPTS protocol support
25 - LucasArts SMUSH playback support
26 - SAMI demuxer and decoder
27 - RealText demuxer and decoder
28 - Heart Of Darkness PAF playback support
31 - new option: -progress
32 - 3GPP Timed Text decoder
33 - GeoTIFF decoder support
34 - ffmpeg -(no)stdin option
35 - Opus decoder using libopus
36 - caca output device using libcaca
41 - Fixes: CVE-2012-2772, CVE-2012-2774, CVE-2012-2775, CVE-2012-2776, CVE-2012-2777,
42 CVE-2012-2779, CVE-2012-2782, CVE-2012-2783, CVE-2012-2784, CVE-2012-2785,
43 CVE-2012-2786, CVE-2012-2787, CVE-2012-2788, CVE-2012-2789, CVE-2012-2790,
44 CVE-2012-2791, CVE-2012-2792, CVE-2012-2793, CVE-2012-2794, CVE-2012-2795,
45 CVE-2012-2796, CVE-2012-2797, CVE-2012-2798, CVE-2012-2799, CVE-2012-2800,
46 CVE-2012-2801, CVE-2012-2802, CVE-2012-2803, CVE-2012-2804,
47 - v408 Quicktime and Microsoft AYUV Uncompressed 4:4:4:4 encoder and decoder
49 - CDXL demuxer and decoder
50 - Apple ProRes encoder
51 - ffprobe -count_packets and -count_frames options
52 - Sun Rasterfile Encoder
53 - ID3v2 attached pictures reading and writing
54 - WMA Lossless decoder
57 - libutvideo encoder wrapper (--enable-libutvideo)
60 - XBM encoder and decoder
61 - RealAudio Lossless decoder
64 - Metal Gear Solid: The Twin Snakes demuxer
65 - OpenEXR image decoder
67 - drop support for ffmpeg without libavfilter
68 - drawtext video filter: fontconfig support
69 - ffmpeg -benchmark_all option
70 - super2xsai filter ported from libmpcodecs
71 - add libavresample audio conversion library for compatibility
73 - Avid Meridien (AVUI) encoder and decoder
74 - accept + prefix to -pix_fmt option to disable automatic conversions.
75 - complete audio filtering in libavfilter and ffmpeg
84 - Fixes: CVE-2011-3929, CVE-2011-3934, CVE-2011-3935, CVE-2011-3936,
85 CVE-2011-3937, CVE-2011-3940, CVE-2011-3941, CVE-2011-3944,
86 CVE-2011-3945, CVE-2011-3946, CVE-2011-3947, CVE-2011-3949,
87 CVE-2011-3950, CVE-2011-3951, CVE-2011-3952
88 - v410 Quicktime Uncompressed 4:4:4 10-bit encoder and decoder
89 - SBaGen (SBG) binaural beats script demuxer
91 - Timecode extraction in DV and MOV
92 - thumbnail video filter
93 - XML output in ffprobe
95 - tinterlace video filter
96 - astreamsync audio filter
98 - ISMV (Smooth Streaming) muxer
101 - XWD encoder and decoder
102 - Automatic thread count based on detection number of (available) CPU cores
103 - y41p Brooktree Uncompressed 4:1:1 12-bit encoder and decoder
104 - ffprobe -show_error option
105 - Avid 1:1 10-bit RGB Packer codec
106 - v308 Quicktime Uncompressed 4:4:4 encoder and decoder
107 - yuv4 libquicktime packed 4:2:0 encoder and decoder
108 - ffprobe -show_frames option
109 - silencedetect audio filter
110 - ffprobe -show_program_version, -show_library_versions, -show_versions options
111 - rv34: frame-level multi-threading
112 - optimized iMDCT transform on x86 using SSE for for mpegaudiodec
113 - Improved PGS subtitle decoder
114 - dumpgraph option to lavfi device
115 - r210 and r10k encoders
116 - ffwavesynth decoder
123 - openal input device added
124 - boxblur filter added
126 - Flash Screen Video 2 decoder
127 - lavfi input device added
128 - added avconv, which is almost the same for now, except
129 for a few incompatible changes in the options, which will hopefully make them
130 easier to use. The changes are:
131 * The options placement is now strictly enforced! While in theory the
132 options for ffmpeg should be given in [input options] -i INPUT [output
133 options] OUTPUT order, in practice it was possible to give output options
134 before the -i and it mostly worked. Except when it didn't - the behavior was
135 a bit inconsistent. In avconv, it is not possible to mix input and output
136 options. All non-global options are reset after an input or output filename.
137 * All per-file options are now truly per-file - they apply only to the next
138 input or output file and specifying different values for different files
139 will now work properly (notably -ss and -t options).
140 * All per-stream options are now truly per-stream - it is possible to
141 specify which stream(s) should a given option apply to. See the Stream
142 specifiers section in the avconv manual for details.
143 * In ffmpeg some options (like -newvideo/-newaudio/...) are irregular in the
144 sense that they're specified after the output filename instead of before,
145 like all other options. In avconv this irregularity is removed, all options
146 apply to the next input or output file.
147 * -newvideo/-newaudio/-newsubtitle options were removed. Not only were they
148 irregular and highly confusing, they were also redundant. In avconv the -map
149 option will create new streams in the output file and map input streams to
150 them. E.g. avconv -i INPUT -map 0 OUTPUT will create an output stream for
151 each stream in the first input file.
152 * The -map option now has slightly different and more powerful syntax:
153 + Colons (':') are used to separate file index/stream type/stream index
154 instead of dots. Comma (',') is used to separate the sync stream instead
155 of colon.. This is done for consistency with other options.
156 + It's possible to specify stream type. E.g. -map 0:a:2 creates an
157 output stream from the third input audio stream.
158 + Omitting the stream index now maps all the streams of the given type,
159 not just the first. E.g. -map 0:s creates output streams for all the
160 subtitle streams in the first input file.
161 + Since -map can now match multiple streams, negative mappings were
162 introduced. Negative mappings disable some streams from an already
163 defined map. E.g. '-map 0 -map -0:a:1' means 'create output streams for
164 all the stream in the first input file, except for the second audio
166 * There is a new option -c (or -codec) for choosing the decoder/encoder to
167 use, which allows to precisely specify target stream(s) consistently with
168 other options. E.g. -c:v lib264 sets the codec for all video streams, -c:a:0
169 libvorbis sets the codec for the first audio stream and -c copy copies all
170 the streams without reencoding. Old -vcodec/-acodec/-scodec options are now
172 * It is now possible to precisely specify which stream should an AVOption
173 apply to. E.g. -b:v:0 2M sets the bitrate for the first video stream, while
174 -b:a 128k sets the bitrate for all audio streams. Note that the old -ab 128k
175 syntax is deprecated and will stop working soon.
176 * -map_chapters now takes only an input file index and applies to the next
177 output file. This is consistent with how all the other options work.
178 * -map_metadata now takes only an input metadata specifier and applies to
179 the next output file. Output metadata specifier is now part of the option
180 name, similarly to the AVOptions/map/codec feature above.
181 * -metadata can now be used to set metadata on streams and chapters, e.g.
182 -metadata:s:1 language=eng sets the language of the first stream to 'eng'.
183 This made -vlang/-alang/-slang options redundant, so they were removed.
184 * -qscale option now uses stream specifiers and applies to all streams, not
185 just video. I.e. plain -qscale number would now apply to all streams. To get
186 the old behavior, use -qscale:v. Also there is now a shortcut -q for -qscale
187 and -aq is now an alias for -q:a.
188 * -vbsf/-absf/-sbsf options were removed and replaced by a -bsf option which
189 uses stream specifiers. Use -bsf:v/a/s instead of the old options.
190 * -itsscale option now uses stream specifiers, so its argument is only the
192 * -intra option was removed, use -g 0 for the same effect.
193 * -psnr option was removed, use -flags +psnr for the same effect.
194 * -vf option is now an alias to the new -filter option, which uses stream specifiers.
195 * -vframes/-aframes/-dframes options are now aliases to the new -frames option.
196 * -vtag/-atag/-stag options are now aliases to the new -tag option.
199 - ashowinfo filter added
200 - Windows Media Image decoder
201 - amovie source added
203 - Speex encoder via libspeex
204 - JSON output in ffprobe
206 - Optional C++ Support (needed for libstagefright)
207 - H.264 Decoding on Android via Stagefright
209 - BIN/XBIN/ADF/IDF text file decoder
210 - aconvert audio filter added
211 - audio support to lavfi input device added
212 - libcdio-paranoia input device for audio CD grabbing
213 - Apple ProRes decoder
214 - CELT in Ogg demuxing
215 - G.723.1 demuxer and decoder
216 - libmodplug support (--enable-libmodplug)
217 - VC-1 interlaced decoding
218 - libutvideo wrapper (--enable-libutvideo)
219 - aevalsrc audio source added
221 - Speex encoding via libspeex
222 - 4:2:2 H.264 decoding support
223 - 4:2:2 and 4:4:4 H.264 encoding with libx264
224 - Pulseaudio input device
226 - Video Decoder Acceleration (VDA) HWAccel module.
227 - replacement Indeo 3 decoder
228 - new ffmpeg option: -map_channel
229 - volume audio filter added
230 - earwax audio filter added
231 - libv4l2 support (--enable-libv4l2)
232 - TLS/SSL and HTTPS protocol support
233 - AVOptions API rewritten and documented
234 - most of CODEC_FLAG2_*, some CODEC_FLAG_* and many codec-specific fields in
235 AVCodecContext deprecated. Codec private options should be used instead.
236 - Properly working defaults in libx264 wrapper, support for native presets.
237 - Encrypted OMA files support
238 - Discworld II BMV decoding support
240 - OS X Video Decoder Acceleration (VDA) support
241 - compact and csv output in ffprobe
243 - IFF Amiga Continuous Bitmap (ACBM) decoder
245 - CRI ADX audio format muxer and demuxer
246 - Playstation Portable PMP format demuxer
247 - Microsoft Windows ICO demuxer
249 - PCM format support in OMA demuxer
251 - new option: -report
252 - Dxtory capture format decoder
254 - Simple segmenting muxer
261 - many many things we forgot because we rather write code than changelogs
262 - WebM support in Matroska de/muxer
263 - low overhead Ogg muxing
265 - VP8 de/encoding via libvpx
266 - Demuxer for On2's IVF format
267 - Pictor/PC Paint decoder
269 - HE-AAC v2 encoding with libaacplus
270 - libfaad2 wrapper removed
271 - DTS-ES extension (XCh) decoding support
273 - RTSP tunneling over HTTP
274 - RTP depacketization of SVQ3
275 - -strict inofficial replaced by -strict unofficial
276 - ffplay -exitonkeydown and -exitonmousedown options added
277 - native GSM / GSM MS decoder
278 - RTP depacketization of QDM2
279 - ANSI/ASCII art playback system
280 - Lego Mindstorms RSO de/muxer
281 - libavcore added (and subsequently removed)
282 - SubRip subtitle file muxer and demuxer
283 - Chinese AVS encoding via libxavs
284 - ffprobe -show_packets option added
285 - RTP packetization of Theora and Vorbis
286 - RTP depacketization of MP4A-LATM
287 - RTP packetization and depacketization of VP8
289 - Apple HTTP Live Streaming demuxer
292 - G.722 ADPCM audio encoder/decoder
295 - frei0r wrapper filter
296 - change crop filter syntax to width:height:x:y
297 - make the crop filter accept parametric expressions
298 - make ffprobe accept AVFormatContext options
301 - Demuxer for Leitch/Harris' VR native stream format (LXF)
302 - RTP depacketization of the X-QT QuickTime format
303 - SAP (Session Announcement Protocol, RFC 2974) muxer and demuxer
305 - ffmpeg -crop* options removed
306 - transpose filter added
307 - ffmpeg -force_key_frames option added
308 - demuxer for receiving raw rtp:// URLs without an SDP description
309 - single stream LATM/LOAS decoder
310 - setpts filter added
311 - Win64 support for optimized x86 assembly functions
312 - MJPEG/AVI1 to JPEG/JFIF bitstream filter
313 - ASS subtitle encoder and decoder
314 - IEC 61937 encapsulation for E-AC-3, TrueHD, DTS-HD (for HDMI passthrough)
315 - overlay filter added
316 - rename aspect filter to setdar, and pixelaspect to setsar
318 - Mobotix .mxg demuxer
319 - frei0r source added
320 - hqdn3d filter added
321 - RTP depacketization of QCELP
323 - gradfun filter added
325 - replace the ocv_smooth filter with a more generic ocv filter
326 - Windows Televison (WTV) demuxer
327 - FFmpeg metadata format muxer and demuxer
328 - SubRip (srt) subtitle encoder and decoder
329 - floating-point AC-3 encoder added
331 - ffmpeg -copytb option added
333 - Wing Commander IV movies decoder added
335 - Bink version 'b' audio and video decoder
336 - Bitmap Brothers JV playback system
337 - Apple HTTP Live Streaming protocol handler
338 - sndio support for playback and record
339 - Linux framebuffer input device added
340 - Chronomaster DFA decoder
342 - MicroDVD subtitle file muxer and demuxer
343 - Playstation Portable PMP format demuxer
344 - fieldorder video filter added
345 - AAC encoding via libvo-aacenc
346 - AMR-WB encoding via libvo-amrwbenc
348 - Mobotix MxPEG decoder
349 - VP8 frame-multithreading
350 - NEON optimizations for VP8
351 - Lots of deprecated API cruft removed
352 - fft and imdct optimizations for AVX (Sandy Bridge) processors
353 - showinfo filter added
354 - SMPTE 302M AES3 audio decoder
355 - Apple Core Audio Format muxer
356 - 9bit and 10bit per sample support in the H.264 decoder
357 - 9bit and 10bit FFV1 encoding / decoding
359 - select filter added
360 - sdl output device added
361 - libmpcodecs video filter support (3 times as many filters than before)
362 - mpeg2 aspect ratio dection fixed
363 - libxvid aspect pickiness fixed
364 - Frame multithreaded decoding
365 - E-AC-3 audio encoder
366 - ac3enc: add channel coupling support
367 - floating-point sample format support to the ac3, eac3, dca, aac, and vorbis decoders.
368 - H264/MPEG frame-level multi-threading
369 - All av_metadata_* functions renamed to av_dict_* and moved to libavutil
370 - 4:4:4 H.264 decoding support
371 - 10-bit H.264 optimizations for x86
372 - lut, lutrgb, and lutyuv filters added
373 - buffersink libavfilter sink added
374 - Bump libswscale for recently reported ABI break
375 - New J2K encoder (via OpenJPEG)
380 - all the changes for 0.8, but keeping API/ABI compatibility with the 0.6 release
385 - PB-frame decoding for H.263
386 - deprecated vhook subsystem removed
387 - deprecated old scaler removed
389 - Alpha channel scaler
391 - RTP packetization of H.263
392 - RTP packetization of AMR
393 - RTP depacketization of Vorbis
394 - CorePNG decoding support
395 - Cook multichannel decoding support
396 - introduced avlanguage helpers in libavformat
397 - 8088flex TMV demuxer and decoder
398 - per-stream language-tags extraction in asfdec
399 - V210 decoder and encoder
400 - remaining GPL parts in AC-3 decoder converted to LGPL
402 - SoX native format muxer and demuxer
403 - AMR-NB decoding/encoding, AMR-WB decoding via OpenCORE libraries
405 - Electronic Arts Madcow decoder
406 - DivX (XSUB) subtitle encoder
407 - nonfree libamr support for AMR-NB/WB decoding/encoding removed
408 - experimental AAC encoder
409 - RTP depacketization of ASF and RTSP from WMS servers
410 - RTMP support in libavformat
411 - noX handling for OPT_BOOL X options
413 - IEC-61937 compatible Muxer
415 - Bluray (PGS) subtitle decoder
416 - LPCM support in MPEG-TS (HDMV RID as found on Blu-ray disks)
418 - Core Audio Format demuxer
420 - MD STUDIO audio demuxer
421 - RF64 support in WAV demuxer
422 - MPEG-4 Audio Lossless Coding (ALS) decoder
423 - -formats option split into -formats, -codecs, -bsfs, and -protocols
425 - CDG demuxer and decoder
427 - Auravision Aura 1 and 2 decoders
428 - Deluxe Paint Animation playback system
430 - Adobe Filmstrip muxer and demuxer
431 - RTP depacketization of H.263
432 - Bink demuxer and audio/video decoders
433 - enable symbol versioning by default for linkers that support it
434 - IFF PBM/ILBM bitmap decoder
437 - RTP depacketization of AMR
443 - Kega Game Video (KGV1) decoder
444 - VorbisComment writing for FLAC, Ogg FLAC and Ogg Speex files
445 - RTP depacketization of Theora
446 - HTTP Digest authentication
447 - RTMP/RTMPT/RTMPS/RTMPE/RTMPTE protocol support via librtmp
448 - Psygnosis YOP demuxer and video decoder
449 - spectral extension support in the E-AC-3 decoder
450 - unsharp video filter
451 - RTP hinting in the mov/3gp/mp4 muxer
452 - Dirac in Ogg demuxing
453 - seek to keyframes in Ogg
454 - 4:2:2 and 4:4:4 Theora decoding
455 - 35% faster VP3/Theora decoding
456 - faster AAC decoding
457 - faster H.264 decoding
458 - RealAudio 1.0 (14.4K) encoder
463 - DV50 AKA DVCPRO50 encoder, decoder, muxer and demuxer
464 - TechSmith Camtasia (TSCC) video decoder
465 - IBM Ultimotion (ULTI) video decoder
466 - Sierra Online audio file demuxer and decoder
467 - Apple QuickDraw (qdrw) video decoder
468 - Creative ADPCM audio decoder (16 bits as well as 8 bits schemes)
469 - Electronic Arts Multimedia (WVE/UV2/etc.) file demuxer
470 - Miro VideoXL (VIXL) video decoder
471 - H.261 video encoder
473 - Nullsoft Video (NSV) file demuxer
474 - Shorten audio decoder
476 - Apple Lossless Audio Codec (ALAC) decoder
477 - Winnov WNV1 video decoder
478 - Autodesk Animator Studio Codec (AASC) decoder
479 - Indeo 2 video decoder
480 - Fraps FPS1 video decoder
481 - Snow video encoder/decoder
482 - Sonic audio encoder/decoder
483 - Vorbis audio decoder
484 - Macromedia ADPCM decoder
485 - Duck TrueMotion 2 video decoder
486 - support for decoding FLX and DTA extensions in FLIC files
487 - H.264 custom quantization matrices support
488 - ffserver fixed, it should now be usable again
490 - Real Cooker audio decoder
491 - TrueSpeech audio decoder
492 - WMA2 audio decoder fixed, now all files should play correctly
493 - RealAudio 14.4 and 28.8 decoders fixed
495 - build system improvements
496 - tabs and trailing whitespace removed from the codebase
497 - CamStudio video decoder
498 - AIFF/AIFF-C audio format, encoding and decoding
499 - ADTS AAC file reading and writing
500 - Creative VOC file reading and writing
501 - American Laser Games multimedia (*.mm) playback system
502 - Zip Motion Blocks Video decoder
503 - improved Theora/VP3 decoder
504 - True Audio (TTA) decoder
505 - AVS demuxer and video decoder
507 - Smacker demuxer and decoder
508 - NuppelVideo/MythTV demuxer and RTjpeg decoder
510 - MPEG-2 intra VLC support
511 - MPEG-2 4:2:2 encoder
512 - Flash Screen Video decoder
514 - Chinese AVS decoder
517 - VC-1/WMV3/WMV9 video decoder
520 - VMware video decoder
523 - WavPack lossless audio decoder
524 - Targa (.TGA) picture decoder
525 - Vorbis audio encoder
526 - Delphine Software .cin demuxer/audio and video decoder
527 - Tiertex .seq demuxer/video decoder
529 - TIFF picture encoder and decoder
530 - GIF picture decoder
531 - Intel Music Coder decoder
532 - Zip Motion Blocks Video encoder
534 - Flash Screen Video encoder
535 - Theora encoding via libtheora
538 - GSM-MS encoder and decoder
540 - DXA demuxer and decoder
542 - Gamecube movie (.THP) playback system
543 - Blackfin optimizations
544 - Interplay C93 demuxer and video decoder
545 - Bethsoft VID demuxer and video decoder
548 - V.Flash PTX decoder
549 - RoQ muxer, RoQ audio encoder
550 - Renderware TXD demuxer and decoder
551 - extern C declarations for C++ removed from headers
552 - sws_flags command line option
556 - OS/2 support removed and restored again
559 - additional SPARC (VIS) optimizations
561 - slice-based parallel H.264 decoding
562 - Monkey's Audio demuxer and decoder
563 - AMV audio and video decoder
565 - H.264 PAFF decoding
566 - Nellymoser ASAO decoder
567 - Beam Software SIFF demuxer and decoder
568 - libvorbis Vorbis decoding removed in favor of native decoder
569 - IntraX8 (J-Frame) subdecoder for WMV2 and VC-1
570 - Ogg (Theora, Vorbis and FLAC) muxer
571 - The "device" muxers and demuxers are now in a new libavdevice library
572 - PC Paintbrush PCX decoder
573 - Sun Rasterfile decoder
574 - TechnoTrend PVA demuxer
575 - Linux Media Labs MPEG-4 (LMLM4) demuxer
576 - AVM2 (Flash 9) SWF muxer
577 - QT variant of IMA ADPCM encoder
579 - iPod/iPhone compatible mp4 muxer
581 - MSN TCP Webcam stream demuxer
582 - RL2 demuxer / decoder
585 - non-recursive Makefiles
587 - MAXIS EA XA (.xa) demuxer / decoder
591 - Electronic Arts CMV decoder
592 - Motion Pixels Video decoder
593 - Motion Pixels MVI demuxer
594 - removed animated GIF decoder/demuxer
595 - D-Cinema audio muxer
596 - Electronic Arts TGV decoder
597 - Apple Lossless Audio Codec (ALAC) encoder
599 - floating point PCM encoder/decoder
601 - DV100 AKA DVCPRO HD decoder and demuxer
602 - E-AC-3 support added to AC-3 decoder
603 - Nellymoser ASAO encoder
604 - ASS and SSA demuxer and muxer
605 - liba52 wrapper removed
606 - SVQ3 watermark decoding support
607 - Speex decoding via libspeex
608 - Electronic Arts TGQ decoder
610 - QCELP / PureVoice decoder
612 - hybrid WavPack support
613 - R3D REDCODE demuxer
614 - ALSA support for playback and record
615 - Electronic Arts TQI decoder
616 - OpenJPEG based JPEG 2000 decoder
617 - NC (NC4600) camera file demuxer
618 - Gopher client support
620 - generic metadata API
621 - flash ScreenVideo2 encoder
626 - DV encoder, DV muxer
627 - Microsoft RLE video decoder
628 - Microsoft Video-1 decoder
629 - Apple Animation (RLE) decoder
630 - Apple Graphics (SMC) decoder
631 - Apple Video (RPZA) decoder
633 - Sega FILM (CPK) file demuxer
634 - Westwood multimedia support (VQA & AUD files)
635 - Id Quake II CIN playback support
637 - FLIC playback support
638 - RealVideo 2.0 (RV20) decoder
639 - Duck TrueMotion v1 (DUCK) video decoder
640 - Sierra VMD demuxer and video decoder
641 - MSZH and ZLIB decoder support
645 - rate distortion optimal cbp support
646 - rate distorted optimal ac prediction for MPEG-4
647 - rate distorted optimal lambda->qp support
648 - AAC encoding with libfaac
649 - Sunplus JPEG codec (SP5X) support
650 - use Lagrange multipler instead of QP for ratecontrol
651 - Theora/VP3 decoding support
652 - XA and ADX ADPCM codecs
653 - export MPEG-2 active display area / pan scan
654 - Add support for configuring with IBM XLC
655 - floating point AAN DCT
656 - initial support for zygo video (not complete)
658 - new audio/video parser API
660 - av_read_frame() and av_seek_frame() support
661 - missing last frame fixes
662 - seek by mouse in ffplay
663 - noise reduction of DCT coefficients
664 - H.263 OBMC & 4MV support
665 - H.263 alternative inter vlc support
667 - H.263 slice structured mode
668 - interlaced DCT support for MPEG-2 encoding
669 - stuffing to stay above min_bitrate
670 - MB type & QP visualization
671 - frame stepping for ffplay
672 - interlaced motion estimation
673 - alternate scantable support
674 - SVCD scan offset support
677 - quantizer noise shaping
678 - G.726 ADPCM audio codec
680 - multithreaded/SMP motion estimation
681 - multithreaded/SMP encoding for MPEG-1/MPEG-2/MPEG-4/H.263
682 - multithreaded/SMP decoding for MPEG-2
684 - Metrowerks CodeWarrior suppport
685 - H.263+ custom pcf support
686 - nicer output for 'ffmpeg -formats'
688 - SGI image format, encoding and decoding
689 - H.264 loop filter support
690 - H.264 CABAC support
691 - nicer looking arrows for the motion vector visualization
692 - improved VCD support
693 - audio timestamp drift compensation
694 - MPEG-2 YUV 422/444 support
695 - polyphase kaiser windowed sinc and blackman nuttall windowed sinc audio resample
696 - better image scaling
698 - correctly interleave packets during encoding
699 - VIS optimized motion compensation
700 - intra_dc_precision>0 encoding support
701 - support reuse of motion vectors/MB types/field select values of the source video
702 - more accurate deblock filter
704 - many optimizations and bugfixes
705 - FunCom ISS audio file demuxer and according ADPCM decoding
710 - MPEG-2 video encoding (Michael)
711 - Id RoQ playback subsystem (Mike Melanson and Tim Ferguson)
712 - Wing Commander III Movie (.mve) file playback subsystem (Mike Melanson
714 - Xan DPCM audio decoder (Mario Brito)
715 - Interplay MVE playback subsystem (Mike Melanson)
716 - Duck DK3 and DK4 ADPCM audio decoders (Mike Melanson)
721 - RealAudio 1.0 (14_4) and 2.0 (28_8) native decoders. Author unknown, code from mplayerhq
722 (originally from public domain player for Amiga at http://www.honeypot.net/audio)
723 - current version now also compiles with older GCC (Fabrice)
724 - 4X multimedia playback system including 4xm file demuxer (Mike
725 Melanson), and 4X video and audio codecs (Michael)
726 - Creative YUV (CYUV) decoder (Mike Melanson)
727 - FFV1 codec (our very simple lossless intra only codec, compresses much better
728 than HuffYUV) (Michael)
729 - ASV1 (Asus), H.264, Intel indeo3 codecs have been added (various)
730 - tiny PNG encoder and decoder, tiny GIF decoder, PAM decoder (PPM with
731 alpha support), JPEG YUV colorspace support. (Fabrice Bellard)
732 - ffplay has been replaced with a newer version which uses SDL (optionally)
733 for multiplatform support (Fabrice)
734 - Sorenson Version 3 codec (SVQ3) support has been added (decoding only) - donated
736 - AMR format has been added (Johannes Carlsson)
737 - 3GP support has been added (Johannes Carlsson)
738 - VP3 codec has been added (Mike Melanson)
739 - more MPEG-1/2 fixes
740 - better multiplatform support, MS Visual Studio fixes (various)
741 - AltiVec optimizations (Magnus Damn and others)
742 - SH4 processor support has been added (BERO)
743 - new public interfaces (avcodec_get_pix_fmt) (Roman Shaposhnick)
744 - VOB streaming support (Brian Foley)
745 - better MP3 autodetection (Andriy Rysin)
746 - qpel encoding (Michael)
747 - 4mv+b frames encoding finally fixed (Michael)
748 - chroma ME (Michael)
749 - 5 comparison functions for ME (Michael)
750 - B-frame encoding speedup (Michael)
751 - WMV2 codec (unfinished - Michael)
752 - user specified diamond size for EPZS (Michael)
753 - Playstation STR playback subsystem, still experimental (Mike and Michael)
754 - ASV2 codec (Michael)
755 - CLJR decoder (Alex)
757 .. And lots more new enhancements and fixes.
762 - completely new integer only MPEG audio layer 1/2/3 decoder rewritten
764 - Recoded DCT and motion vector search with gcc (no longer depends on nasm)
765 - fix quantization bug in AC3 encoder
766 - added PCM codecs and format. Corrected WAV/AVI/ASF PCM issues
767 - added prototype ffplay program
768 - added GOB header parsing on H.263/H.263+ decoder (Juanjo)
769 - bug fix on MCBPC tables of H.263 (Juanjo)
770 - bug fix on DC coefficients of H.263 (Juanjo)
771 - added Advanced Prediction Mode on H.263/H.263+ decoder (Juanjo)
772 - now we can decode H.263 streams found in QuickTime files (Juanjo)
773 - now we can decode H.263 streams found in VIVO v1 files(Juanjo)
774 - preliminary RTP "friendly" mode for H.263/H.263+ coding. (Juanjo)
775 - added GOB header for H.263/H.263+ coding on RTP mode (Juanjo)
776 - now H.263 picture size is returned on the first decoded frame (Juanjo)
777 - added first regression tests
778 - added MPEG-2 TS demuxer
779 - new demux API for libav
780 - more accurate and faster IDCT (Michael)
781 - faster and entropy-controlled motion search (Michael)
782 - two pass video encoding (Michael)
783 - new video rate control (Michael)
784 - added MSMPEG4V1, MSMPEGV2 and WMV1 support (Michael)
785 - great performance improvement of video encoders and decoders (Michael)
786 - new and faster bit readers and vlc parsers (Michael)
787 - high quality encoding mode: tries all macroblock/VLC types (Michael)
788 - added DV video decoder
789 - preliminary RTP/RTSP support in ffserver and libavformat
790 - H.263+ AIC decoding/encoding support (Juanjo)
791 - VCD MPEG-PS mode (Juanjo)
792 - PSNR stuff (Juanjo)
793 - simple stats output (Juanjo)
794 - 16-bit and 15-bit RGB/BGR/GBR support (Bisqwit)
799 - some header fixes (Zdenek Kabelac <kabi at informatics.muni.cz>)
800 - many MMX optimizations (Nick Kurshev <nickols_k at mail.ru>)
801 - added configure system (actually a small shell script)
802 - added MPEG audio layer 1/2/3 decoding using LGPL'ed mpglib by
803 Michael Hipp (temporary solution - waiting for integer only
805 - fixed VIDIOCSYNC interrupt
806 - added Intel H.263 decoding support ('I263' AVI fourCC)
807 - added Real Video 1.0 decoding (needs further testing)
808 - simplified image formats again. Added PGM format (=grey
809 pgm). Renamed old PGM to PGMYUV.
810 - fixed msmpeg4 slice issues (tell me if you still find problems)
811 - fixed OpenDivX bugs with newer versions (added VOL header decoding)
812 - added support for MPlayer interface
813 - added macroblock skip optimization
814 - added MJPEG decoder
815 - added mmx/mmxext IDCT from libmpeg2
816 - added pgmyuvpipe, ppm, and ppm_pipe formats (original patch by Celer
817 <celer at shell.scrypt.net>)
818 - added pixel format conversion layer (e.g. for MJPEG or PPM)
819 - added deinterlacing option
821 - MPEG-4 vol header fixes (Jonathan Marsden <snmjbm at pacbell.net>)
822 - ARM optimizations (Lionel Ulmer <lionel.ulmer at free.fr>).
823 - Windows porting of file converter
824 - added MJPEG raw format (input/output)
825 - added JPEG image format support (input/output)
830 - fixed some std header definitions (Bjorn Lindgren
831 <bjorn.e.lindgren at telia.com>).
832 - added MPEG demuxer (MPEG-1 and 2 compatible).
834 - added prototype RM demuxer
835 - added AC3 decoding (done with libac3 by Aaron Holtzman)
836 - added decoding codec parameter guessing (.e.g. for MPEG, because the
837 header does not include them)
838 - fixed header generation in MPEG-1, AVI and ASF muxer: wmplayer can now
839 play them (only tested video)
840 - fixed H.263 white bug
841 - fixed phase rounding in img resample filter
842 - add MMX code for polyphase img resample filter
843 - added CPU autodetection
844 - added generic title/author/copyright/comment string handling (ASF and RM
846 - added SWF demux to extract MP3 track (not usable yet because no MP3
848 - added fractional frame rate support
849 - codecs are no longer searched by read_header() (should fix ffserver
855 - BGR24 patch (initial patch by Jeroen Vreeken <pe1rxq at amsat.org>)
856 - fixed raw yuv output
857 - added motion rounding support in MPEG-4
858 - fixed motion bug rounding in MSMPEG4
859 - added B-frame handling in video core
860 - added full MPEG-1 decoding support
861 - added partial (frame only) MPEG-2 support
862 - changed the FOURCC code for H.263 to "U263" to be able to see the
863 +AVI/H.263 file with the UB Video H.263+ decoder. MPlayer works with
864 this +codec ;) (JuanJo).
865 - Halfpel motion estimation after MB type selection (JuanJo)
866 - added pgm and .Y.U.V output format
867 - suppressed 'img:' protocol. Simply use: /tmp/test%d.[pgm|Y] as input or
869 - added pgmpipe I/O format (original patch from Martin Aumueller
870 <lists at reserv.at>, but changed completely since we use a format
871 instead of a protocol)
876 - added H.263/MPEG-4/MSMPEG4 decoding support. MPEG-4 decoding support
877 (for OpenDivX) is almost complete: 8x8 MVs and rounding are
878 missing. MSMPEG4 support is complete.
879 - added prototype MPEG-1 decoder. Only I- and P-frames handled yet (it
880 can decode ffmpeg MPEGs :-)).
881 - added libavcodec API documentation (see apiexample.c).
882 - fixed image polyphase bug (the bottom of some images could be
884 - added support for non clipped motion vectors (decoding only)
885 and image sizes non-multiple of 16
886 - added support for AC prediction (decoding only)
887 - added file overwrite confirmation (can be disabled with -y)
888 - added custom size picture to H.263 using H.263+ (Juanjo)
893 - added MSMPEG4 (aka DivX) compatible encoder. Changed default codec
894 of AVI and ASF to DIV3.
895 - added -me option to set motion estimation method
896 (default=log). suppressed redundant -hq option.
897 - added options -acodec and -vcodec to force a given codec (useful for
900 - improved dct_quantize speed
901 - factorized some motion estimation code
906 - removing grab code from ffserver and moved it to ffmpeg. Added
907 multistream support to ffmpeg.
908 - added timeshifting support for live feeds (option ?date=xxx in the
910 - added high quality image resize code with polyphase filter (need
911 mmx/see optimization). Enable multiple image size support in ffserver.
912 - added multi live feed support in ffserver
913 - suppressed master feature from ffserver (it should be done with an
914 external program which opens the .ffm url and writes it to another
916 - added preliminary support for video stream parsing (WAV and AVI half
917 done). Added proper support for audio/video file conversion in
919 - added preliminary support for video file sending from ffserver
920 - redesigning I/O subsystem: now using URL based input and output
922 - added WAV format support
923 - added "tty user interface" to ffmpeg to stop grabbing gracefully
924 - added MMX/SSE optimizations to SAD (Sums of Absolutes Differences)
925 (Juan J. Sierralta P. a.k.a. "Juanjo" <juanjo at atmlab.utfsm.cl>)
926 - added MMX DCT from mpeg2_movie 1.5 (Juanjo)
927 - added new motion estimation algorithms, log and phods (Juanjo)
928 - changed directories: libav for format handling, libavcodec for
934 - added stereo in MPEG audio encoder
939 - added 'high quality' mode which use motion vectors. It can be used in
940 real time at low resolution.
941 - fixed rounding problems which caused quality problems at high
942 bitrates and large GOP size
945 version 0.3.2: small fixes
951 version 0.3.1: added avi/divx support
954 - added MPEG-4 codec compatible with OpenDivX. It is based on the H.263 codec
955 - added sound for flash format (not tested)
958 version 0.3: initial public release