1 Entries are sorted chronologically from oldest to youngest within each release,
2 releases are sorted from youngest to oldest.
6 - support ID3v2 tags in ASF files
7 - reference-counting for AVFrame and AVPacket data
8 - avconv now fails when input options are used for output file
10 - new avconv options -filter_script and -filter_complex_script, which allow a
11 filtergraph description to be read from a file
12 - uniform options syntax across all filters
13 - new interlace filter
15 - new asetpts filter (same as setpts, but for audio)
16 - new trim and atrim filters
17 - avconv -t and -ss (output-only) options are now sample-accurate when
19 - Matroska muxer can now put the index at the beginning of the file.
20 - avconv -deinterlace option removed, the yadif filter should be used instead
21 - Apple Intermediate Codec decoder
22 - Escape 130 video decoder
23 - support for slice multithreading in libavfilter
24 - VC-1 interlaced B-frame support
25 - support for WavPack muxing (raw and in Matroska)
27 - WavPack encoding through libwavpack
28 - Added the -n parameter to avconv
30 - when transcoding with avconv (i.e. not streamcopying), -ss is now accurate
31 even when used as an input option. Previous behavior can be restored with
32 the -noaccurate_seek option.
33 - avconv -t option can now be used for inputs, to limit the duration of
34 data read from an input file
35 - incomplete Voxware MetaSound decoder
40 - av_basename and av_dirname
41 - adobe and limelight publisher authentication in RTMP
42 - VDPAU hardware acceleration through normal hwaccel
47 - ashowinfo audio filter
48 - 24-bit FLAC encoding
50 - deprecated the avconv -vol option. the volume filter is to be used instead.
51 - multi-channel ALAC encoding up to 7.1
52 - TAK demuxer, parser, and decoder
53 - adaptive frame-level multithreading for H.264
57 - metadata (INFO tag) support in WAV muxer
58 - support for building DLLs using MSVC
59 - remove avserver daemon mode
60 - support building on the Plan 9 operating system
61 - ffv1: support version 1.3
66 - XWD encoder and decoder
67 - Support for fragmentation in the mov/mp4 muxer
68 - ISMV (Smooth Streaming) muxer
69 - CDXL demuxer and decoder
70 - Apple ProRes encoder
71 - Sun Rasterfile Encoder
73 - ID3v2 attached pictures reading and writing
74 - WMA Lossless decoder
76 - RealAudio Lossless decoder
78 - drop support for avconv without libavfilter
79 - add libavresample audio conversion library
80 - audio filters support in libavfilter and avconv
84 - avprobe output is now standard INI or JSON. The old format can still
87 - channelsplit audio filter
88 - RTMPT protocol support
89 - iLBC encoding/decoding via libilbc
90 - Microsoft Screen 1 decoder
92 - audio channel mapping filter
93 - Microsoft ATC Screen decoder
95 - TechSmith Screen Codec 2 decoder
96 - AAC encoding via libfdk-aac
97 - Microsoft Expression Encoder Screen decoder
98 - RTMPS protocol support
99 - RTMPTS protocol support
100 - JPEG 2000 encoding support through OpenJPEG
101 - G.723.1 demuxer and decoder
102 - RTMPE protocol support
103 - RTMPTE protocol support
104 - Canopus Lossless Codec decoder
105 - avconv -shortest option is now per-output file,
106 -pass and -passlogfile are now per-output stream
108 - Microsoft Screen 2 decoder
109 - RTP depacketization of JPEG
110 - Smooth Streaming live segmenter muxer
111 - RTP packetization of JPEG
112 - Opus decoder and encoder using libopus
113 - remove -same_quant, it hasn't worked for years
114 - support for building with MSVC
125 - Automatic thread count based on detection number of (available) CPU cores
126 - Deprecate libpostproc. If desired, the switch --enable-postproc will
127 enable it but it may be removed in a later Libav release.
128 - rv34: frame-level multi-threading
129 - optimized iMDCT transform on x86 using SSE for for mpegaudiodec
135 - Flash Screen Video 2 decoder
136 - ffplay/ffprobe/ffserver renamed to avplay/avprobe/avserver
137 - ffmpeg deprecated, added avconv, which is almost the same for now, except
138 for a few incompatible changes in the options, which will hopefully make them
139 easier to use. The changes are:
140 * The options placement is now strictly enforced! While in theory the
141 options for ffmpeg should be given in [input options] -i INPUT [output
142 options] OUTPUT order, in practice it was possible to give output options
143 before the -i and it mostly worked. Except when it didn't - the behavior was
144 a bit inconsistent. In avconv, it is not possible to mix input and output
145 options. All non-global options are reset after an input or output filename.
146 * All per-file options are now truly per-file - they apply only to the next
147 input or output file and specifying different values for different files
148 will now work properly (notably -ss and -t options).
149 * All per-stream options are now truly per-stream - it is possible to
150 specify which stream(s) should a given option apply to. See the Stream
151 specifiers section in the avconv manual for details.
152 * In ffmpeg some options (like -newvideo/-newaudio/...) are irregular in the
153 sense that they're specified after the output filename instead of before,
154 like all other options. In avconv this irregularity is removed, all options
155 apply to the next input or output file.
156 * -newvideo/-newaudio/-newsubtitle options were removed. Not only were they
157 irregular and highly confusing, they were also redundant. In avconv the -map
158 option will create new streams in the output file and map input streams to
159 them. E.g. avconv -i INPUT -map 0 OUTPUT will create an output stream for
160 each stream in the first input file.
161 * The -map option now has slightly different and more powerful syntax:
162 + Colons (':') are used to separate file index/stream type/stream index
163 instead of dots. Comma (',') is used to separate the sync stream instead
164 of colon.. This is done for consistency with other options.
165 + It's possible to specify stream type. E.g. -map 0:a:2 creates an
166 output stream from the third input audio stream.
167 + Omitting the stream index now maps all the streams of the given type,
168 not just the first. E.g. -map 0:s creates output streams for all the
169 subtitle streams in the first input file.
170 + Since -map can now match multiple streams, negative mappings were
171 introduced. Negative mappings disable some streams from an already
172 defined map. E.g. '-map 0 -map -0:a:1' means 'create output streams for
173 all the stream in the first input file, except for the second audio
175 * There is a new option -c (or -codec) for choosing the decoder/encoder to
176 use, which allows to precisely specify target stream(s) consistently with
177 other options. E.g. -c:v lib264 sets the codec for all video streams, -c:a:0
178 libvorbis sets the codec for the first audio stream and -c copy copies all
179 the streams without reencoding. Old -vcodec/-acodec/-scodec options are now
181 * It is now possible to precisely specify which stream should an AVOption
182 apply to. E.g. -b:v:0 2M sets the bitrate for the first video stream, while
183 -b:a 128k sets the bitrate for all audio streams. Note that the old -ab 128k
184 syntax is deprecated and will stop working soon.
185 * -map_chapters now takes only an input file index and applies to the next
186 output file. This is consistent with how all the other options work.
187 * -map_metadata now takes only an input metadata specifier and applies to
188 the next output file. Output metadata specifier is now part of the option
189 name, similarly to the AVOptions/map/codec feature above.
190 * -metadata can now be used to set metadata on streams and chapters, e.g.
191 -metadata:s:1 language=eng sets the language of the first stream to 'eng'.
192 This made -vlang/-alang/-slang options redundant, so they were removed.
193 * -qscale option now uses stream specifiers and applies to all streams, not
194 just video. I.e. plain -qscale number would now apply to all streams. To get
195 the old behavior, use -qscale:v. Also there is now a shortcut -q for -qscale
196 and -aq is now an alias for -q:a.
197 * -vbsf/-absf/-sbsf options were removed and replaced by a -bsf option which
198 uses stream specifiers. Use -bsf:v/a/s instead of the old options.
199 * -itsscale option now uses stream specifiers, so its argument is only the
201 * -intra option was removed, use -g 0 for the same effect.
202 * -psnr option was removed, use -flags +psnr for the same effect.
203 * -vf option is now an alias to the new -filter option, which uses stream specifiers.
204 * -vframes/-aframes/-dframes options are now aliases to the new -frames option.
205 * -vtag/-atag/-stag options are now aliases to the new -tag option.
207 - Windows Media Image decoder
211 - libcdio-paranoia input device for audio CD grabbing
213 - Apple ProRes decoder
214 - CELT in Ogg demuxing
215 - VC-1 interlaced decoding
216 - lut, lutrgb, and lutyuv filters
219 - Speex encoding via libspeex
220 - 4:2:2 H.264 decoding support
221 - 4:2:2 and 4:4:4 H.264 encoding with libx264
222 - Pulseaudio input device
223 - replacement Indeo 3 decoder
224 - TLS/SSL and HTTPS protocol support
225 - AVOptions API rewritten and documented
226 - most of CODEC_FLAG2_*, some CODEC_FLAG_* and many codec-specific fields in
227 AVCodecContext deprecated. Codec private options should be used instead.
228 - Properly working defaults in libx264 wrapper, support for native presets.
229 - Encrypted OMA files support
230 - Discworld II BMV decoding support
232 - OS X Video Decoder Acceleration (VDA) support
233 - CRI ADX audio format muxer and demuxer
234 - Playstation Portable PMP format demuxer
235 - PCM format support in OMA demuxer
237 - Dxtory capture format decoder
238 - v410 QuickTime uncompressed 4:4:4 10-bit encoder and decoder
240 - Simple segmenting muxer
247 - E-AC-3 audio encoder
248 - ac3enc: add channel coupling support
249 - floating-point sample format support for (E-)AC-3, DCA, AAC, Vorbis decoders
250 - H.264/MPEG frame-level multithreading
251 - av_metadata_* functions renamed to av_dict_* and moved to libavutil
252 - 4:4:4 H.264 decoding support
253 - 10-bit H.264 optimizations for x86
254 - bump libswscale for recently reported ABI break
259 - VP8 frame-level multithreading
260 - NEON optimizations for VP8
261 - removed a lot of deprecated API cruft
262 - FFT and IMDCT optimizations for AVX (Sandy Bridge) processors
264 - SMPTE 302M AES3 audio decoder
265 - ffmpeg no longer quits after the 'q' key is pressed; use 'ctrl+c' instead
266 - 9bit and 10bit per sample support in the H.264 decoder
271 - WebM support in Matroska de/muxer
272 - low overhead Ogg muxing
274 - VP8 de/encoding via libvpx
275 - Demuxer for On2's IVF format
276 - Pictor/PC Paint decoder
278 - libfaad2 wrapper removed
279 - DTS-ES extension (XCh) decoding support
281 - RTSP tunneling over HTTP
282 - RTP depacketization of SVQ3
283 - -strict inofficial replaced by -strict unofficial
284 - ffplay -exitonkeydown and -exitonmousedown options added
285 - native GSM / GSM MS decoder
286 - RTP depacketization of QDM2
287 - ANSI/ASCII art playback system
288 - Lego Mindstorms RSO de/muxer
289 - SubRip subtitle file muxer and demuxer
290 - Chinese AVS encoding via libxavs
291 - ffprobe -show_packets option added
292 - RTP packetization of Theora and Vorbis
293 - RTP depacketization of MP4A-LATM
294 - RTP packetization and depacketization of VP8
296 - Apple HTTP Live Streaming demuxer
299 - G.722 ADPCM audio encoder/decoder
302 - frei0r wrapper filter
303 - change crop filter syntax to width:height:x:y
304 - make the crop filter accept parametric expressions
305 - make ffprobe accept AVFormatContext options
308 - Demuxer for Leitch/Harris' VR native stream format (LXF)
309 - RTP depacketization of the X-QT QuickTime format
310 - SAP (Session Announcement Protocol, RFC 2974) muxer and demuxer
312 - ffmpeg -crop* options removed
313 - transpose filter added
314 - ffmpeg -force_key_frames option added
315 - demuxer for receiving raw rtp:// URLs without an SDP description
316 - single stream LATM/LOAS decoder
317 - setpts filter added
318 - Win64 support for optimized x86 assembly functions
319 - MJPEG/AVI1 to JPEG/JFIF bitstream filter
320 - ASS subtitle encoder and decoder
321 - IEC 61937 encapsulation for E-AC-3, TrueHD, DTS-HD (for HDMI passthrough)
322 - overlay filter added
323 - rename aspect filter to setdar, and pixelaspect to setsar
325 - Mobotix .mxg demuxer
326 - frei0r source added
327 - hqdn3d filter added
328 - RTP depacketization of QCELP
330 - gradfun filter added
332 - replace the ocv_smooth filter with a more generic ocv filter
333 - Windows Televison (WTV) demuxer
334 - FFmpeg metadata format muxer and demuxer
335 - SubRip (srt) subtitle decoder
336 - floating-point AC-3 encoder added
338 - ffmpeg -copytb option added
340 - Wing Commander IV movies decoder added
342 - Bink version 'b' audio and video decoder
343 - Bitmap Brothers JV playback system
344 - Apple HTTP Live Streaming protocol handler
345 - sndio support for playback and record
346 - Linux framebuffer input device added
347 - Chronomaster DFA decoder
348 - Mobotix MxPEG decoder
349 - AAC encoding via libvo-aacenc
350 - AMR-WB encoding via libvo-amrwbenc
352 - fieldorder video filter added
357 - PB-frame decoding for H.263
358 - deprecated vhook subsystem removed
359 - deprecated old scaler removed
361 - Alpha channel scaler
363 - RTP packetization of H.263
364 - RTP packetization of AMR
365 - RTP depacketization of Vorbis
366 - CorePNG decoding support
367 - Cook multichannel decoding support
368 - introduced avlanguage helpers in libavformat
369 - 8088flex TMV demuxer and decoder
370 - per-stream language-tags extraction in asfdec
371 - V210 decoder and encoder
372 - remaining GPL parts in AC-3 decoder converted to LGPL
374 - SoX native format muxer and demuxer
375 - AMR-NB decoding/encoding, AMR-WB decoding via OpenCORE libraries
377 - Electronic Arts Madcow decoder
378 - DivX (XSUB) subtitle encoder
379 - nonfree libamr support for AMR-NB/WB decoding/encoding removed
380 - experimental AAC encoder
381 - RTP depacketization of ASF and RTSP from WMS servers
382 - RTMP support in libavformat
383 - noX handling for OPT_BOOL X options
385 - IEC-61937 compatible Muxer
387 - Bluray (PGS) subtitle decoder
388 - LPCM support in MPEG-TS (HDMV RID as found on Blu-ray disks)
390 - Core Audio Format demuxer
392 - MD STUDIO audio demuxer
393 - RF64 support in WAV demuxer
394 - MPEG-4 Audio Lossless Coding (ALS) decoder
395 - -formats option split into -formats, -codecs, -bsfs, and -protocols
397 - CDG demuxer and decoder
399 - Auravision Aura 1 and 2 decoders
400 - Deluxe Paint Animation playback system
402 - Adobe Filmstrip muxer and demuxer
403 - RTP depacketization of H.263
404 - Bink demuxer and audio/video decoders
405 - enable symbol versioning by default for linkers that support it
406 - IFF PBM/ILBM bitmap decoder
409 - RTP depacketization of AMR
415 - Kega Game Video (KGV1) decoder
416 - VorbisComment writing for FLAC, Ogg FLAC and Ogg Speex files
417 - RTP depacketization of Theora
418 - HTTP Digest authentication
419 - RTMP/RTMPT/RTMPS/RTMPE/RTMPTE protocol support via librtmp
420 - Psygnosis YOP demuxer and video decoder
421 - spectral extension support in the E-AC-3 decoder
422 - unsharp video filter
423 - RTP hinting in the mov/3gp/mp4 muxer
424 - Dirac in Ogg demuxing
425 - seek to keyframes in Ogg
426 - 4:2:2 and 4:4:4 Theora decoding
427 - 35% faster VP3/Theora decoding
428 - faster AAC decoding
429 - faster H.264 decoding
430 - RealAudio 1.0 (14.4K) encoder
435 - DV50 AKA DVCPRO50 encoder, decoder, muxer and demuxer
436 - TechSmith Camtasia (TSCC) video decoder
437 - IBM Ultimotion (ULTI) video decoder
438 - Sierra Online audio file demuxer and decoder
439 - Apple QuickDraw (qdrw) video decoder
440 - Creative ADPCM audio decoder (16 bits as well as 8 bits schemes)
441 - Electronic Arts Multimedia (WVE/UV2/etc.) file demuxer
442 - Miro VideoXL (VIXL) video decoder
443 - H.261 video encoder
445 - Nullsoft Video (NSV) file demuxer
446 - Shorten audio decoder
448 - Apple Lossless Audio Codec (ALAC) decoder
449 - Winnov WNV1 video decoder
450 - Autodesk Animator Studio Codec (AASC) decoder
451 - Indeo 2 video decoder
452 - Fraps FPS1 video decoder
453 - Snow video encoder/decoder
454 - Sonic audio encoder/decoder
455 - Vorbis audio decoder
456 - Macromedia ADPCM decoder
457 - Duck TrueMotion 2 video decoder
458 - support for decoding FLX and DTA extensions in FLIC files
459 - H.264 custom quantization matrices support
460 - ffserver fixed, it should now be usable again
462 - Real Cooker audio decoder
463 - TrueSpeech audio decoder
464 - WMA2 audio decoder fixed, now all files should play correctly
465 - RealAudio 14.4 and 28.8 decoders fixed
467 - build system improvements
468 - tabs and trailing whitespace removed from the codebase
469 - CamStudio video decoder
470 - AIFF/AIFF-C audio format, encoding and decoding
471 - ADTS AAC file reading and writing
472 - Creative VOC file reading and writing
473 - American Laser Games multimedia (*.mm) playback system
474 - Zip Motion Blocks Video decoder
475 - improved Theora/VP3 decoder
476 - True Audio (TTA) decoder
477 - AVS demuxer and video decoder
479 - Smacker demuxer and decoder
480 - NuppelVideo/MythTV demuxer and RTjpeg decoder
482 - MPEG-2 intra VLC support
483 - MPEG-2 4:2:2 encoder
484 - Flash Screen Video decoder
486 - Chinese AVS decoder
489 - VC-1/WMV3/WMV9 video decoder
492 - VMware video decoder
495 - WavPack lossless audio decoder
496 - Targa (.TGA) picture decoder
497 - Vorbis audio encoder
498 - Delphine Software .cin demuxer/audio and video decoder
499 - Tiertex .seq demuxer/video decoder
501 - TIFF picture encoder and decoder
502 - GIF picture decoder
503 - Intel Music Coder decoder
504 - Zip Motion Blocks Video encoder
506 - Flash Screen Video encoder
507 - Theora encoding via libtheora
510 - GSM-MS encoder and decoder
512 - DXA demuxer and decoder
514 - Gamecube movie (.THP) playback system
515 - Blackfin optimizations
516 - Interplay C93 demuxer and video decoder
517 - Bethsoft VID demuxer and video decoder
520 - V.Flash PTX decoder
521 - RoQ muxer, RoQ audio encoder
522 - Renderware TXD demuxer and decoder
523 - extern C declarations for C++ removed from headers
524 - sws_flags command line option
528 - OS/2 support removed and restored again
531 - additional SPARC (VIS) optimizations
533 - slice-based parallel H.264 decoding
534 - Monkey's Audio demuxer and decoder
535 - AMV audio and video decoder
537 - H.264 PAFF decoding
538 - Nellymoser ASAO decoder
539 - Beam Software SIFF demuxer and decoder
540 - libvorbis Vorbis decoding removed in favor of native decoder
541 - IntraX8 (J-Frame) subdecoder for WMV2 and VC-1
542 - Ogg (Theora, Vorbis and FLAC) muxer
543 - The "device" muxers and demuxers are now in a new libavdevice library
544 - PC Paintbrush PCX decoder
545 - Sun Rasterfile decoder
546 - TechnoTrend PVA demuxer
547 - Linux Media Labs MPEG-4 (LMLM4) demuxer
548 - AVM2 (Flash 9) SWF muxer
549 - QT variant of IMA ADPCM encoder
551 - iPod/iPhone compatible mp4 muxer
553 - MSN TCP Webcam stream demuxer
554 - RL2 demuxer / decoder
557 - non-recursive Makefiles
559 - MAXIS EA XA (.xa) demuxer / decoder
563 - Electronic Arts CMV decoder
564 - Motion Pixels Video decoder
565 - Motion Pixels MVI demuxer
566 - removed animated GIF decoder/demuxer
567 - D-Cinema audio muxer
568 - Electronic Arts TGV decoder
569 - Apple Lossless Audio Codec (ALAC) encoder
571 - floating point PCM encoder/decoder
573 - DV100 AKA DVCPRO HD decoder and demuxer
574 - E-AC-3 support added to AC-3 decoder
575 - Nellymoser ASAO encoder
576 - ASS and SSA demuxer and muxer
577 - liba52 wrapper removed
578 - SVQ3 watermark decoding support
579 - Speex decoding via libspeex
580 - Electronic Arts TGQ decoder
582 - QCELP / PureVoice decoder
584 - hybrid WavPack support
585 - R3D REDCODE demuxer
586 - ALSA support for playback and record
587 - Electronic Arts TQI decoder
588 - OpenJPEG based JPEG 2000 decoder
589 - NC (NC4600) camera file demuxer
590 - Gopher client support
592 - generic metadata API
597 - DV encoder, DV muxer
598 - Microsoft RLE video decoder
599 - Microsoft Video-1 decoder
600 - Apple Animation (RLE) decoder
601 - Apple Graphics (SMC) decoder
602 - Apple Video (RPZA) decoder
604 - Sega FILM (CPK) file demuxer
605 - Westwood multimedia support (VQA & AUD files)
606 - Id Quake II CIN playback support
608 - FLIC playback support
609 - RealVideo 2.0 (RV20) decoder
610 - Duck TrueMotion v1 (DUCK) video decoder
611 - Sierra VMD demuxer and video decoder
612 - MSZH and ZLIB decoder support
616 - rate distortion optimal cbp support
617 - rate distorted optimal ac prediction for MPEG-4
618 - rate distorted optimal lambda->qp support
619 - AAC encoding with libfaac
620 - Sunplus JPEG codec (SP5X) support
621 - use Lagrange multipler instead of QP for ratecontrol
622 - Theora/VP3 decoding support
623 - XA and ADX ADPCM codecs
624 - export MPEG-2 active display area / pan scan
625 - Add support for configuring with IBM XLC
626 - floating point AAN DCT
627 - initial support for zygo video (not complete)
629 - new audio/video parser API
631 - av_read_frame() and av_seek_frame() support
632 - missing last frame fixes
633 - seek by mouse in ffplay
634 - noise reduction of DCT coefficients
635 - H.263 OBMC & 4MV support
636 - H.263 alternative inter vlc support
638 - H.263 slice structured mode
639 - interlaced DCT support for MPEG-2 encoding
640 - stuffing to stay above min_bitrate
641 - MB type & QP visualization
642 - frame stepping for ffplay
643 - interlaced motion estimation
644 - alternate scantable support
645 - SVCD scan offset support
648 - quantizer noise shaping
649 - G.726 ADPCM audio codec
651 - multithreaded/SMP motion estimation
652 - multithreaded/SMP encoding for MPEG-1/MPEG-2/MPEG-4/H.263
653 - multithreaded/SMP decoding for MPEG-2
655 - Metrowerks CodeWarrior suppport
656 - H.263+ custom pcf support
657 - nicer output for 'ffmpeg -formats'
659 - SGI image format, encoding and decoding
660 - H.264 loop filter support
661 - H.264 CABAC support
662 - nicer looking arrows for the motion vector visualization
663 - improved VCD support
664 - audio timestamp drift compensation
665 - MPEG-2 YUV 422/444 support
666 - polyphase kaiser windowed sinc and blackman nuttall windowed sinc audio resample
667 - better image scaling
669 - correctly interleave packets during encoding
670 - VIS optimized motion compensation
671 - intra_dc_precision>0 encoding support
672 - support reuse of motion vectors/MB types/field select values of the source video
673 - more accurate deblock filter
675 - many optimizations and bugfixes
676 - FunCom ISS audio file demuxer and according ADPCM decoding
681 - MPEG-2 video encoding (Michael)
682 - Id RoQ playback subsystem (Mike Melanson and Tim Ferguson)
683 - Wing Commander III Movie (.mve) file playback subsystem (Mike Melanson
685 - Xan DPCM audio decoder (Mario Brito)
686 - Interplay MVE playback subsystem (Mike Melanson)
687 - Duck DK3 and DK4 ADPCM audio decoders (Mike Melanson)
692 - RealAudio 1.0 (14_4) and 2.0 (28_8) native decoders. Author unknown, code from mplayerhq
693 (originally from public domain player for Amiga at http://www.honeypot.net/audio)
694 - current version now also compiles with older GCC (Fabrice)
695 - 4X multimedia playback system including 4xm file demuxer (Mike
696 Melanson), and 4X video and audio codecs (Michael)
697 - Creative YUV (CYUV) decoder (Mike Melanson)
698 - FFV1 codec (our very simple lossless intra only codec, compresses much better
699 than HuffYUV) (Michael)
700 - ASV1 (Asus), H.264, Intel indeo3 codecs have been added (various)
701 - tiny PNG encoder and decoder, tiny GIF decoder, PAM decoder (PPM with
702 alpha support), JPEG YUV colorspace support. (Fabrice Bellard)
703 - ffplay has been replaced with a newer version which uses SDL (optionally)
704 for multiplatform support (Fabrice)
705 - Sorenson Version 3 codec (SVQ3) support has been added (decoding only) - donated
707 - AMR format has been added (Johannes Carlsson)
708 - 3GP support has been added (Johannes Carlsson)
709 - VP3 codec has been added (Mike Melanson)
710 - more MPEG-1/2 fixes
711 - better multiplatform support, MS Visual Studio fixes (various)
712 - AltiVec optimizations (Magnus Damn and others)
713 - SH4 processor support has been added (BERO)
714 - new public interfaces (avcodec_get_pix_fmt) (Roman Shaposhnick)
715 - VOB streaming support (Brian Foley)
716 - better MP3 autodetection (Andriy Rysin)
717 - qpel encoding (Michael)
718 - 4mv+b frames encoding finally fixed (Michael)
719 - chroma ME (Michael)
720 - 5 comparison functions for ME (Michael)
721 - B-frame encoding speedup (Michael)
722 - WMV2 codec (unfinished - Michael)
723 - user specified diamond size for EPZS (Michael)
724 - Playstation STR playback subsystem, still experimental (Mike and Michael)
725 - ASV2 codec (Michael)
726 - CLJR decoder (Alex)
728 .. And lots more new enhancements and fixes.
733 - completely new integer only MPEG audio layer 1/2/3 decoder rewritten
735 - Recoded DCT and motion vector search with gcc (no longer depends on nasm)
736 - fix quantization bug in AC3 encoder
737 - added PCM codecs and format. Corrected WAV/AVI/ASF PCM issues
738 - added prototype ffplay program
739 - added GOB header parsing on H.263/H.263+ decoder (Juanjo)
740 - bug fix on MCBPC tables of H.263 (Juanjo)
741 - bug fix on DC coefficients of H.263 (Juanjo)
742 - added Advanced Prediction Mode on H.263/H.263+ decoder (Juanjo)
743 - now we can decode H.263 streams found in QuickTime files (Juanjo)
744 - now we can decode H.263 streams found in VIVO v1 files(Juanjo)
745 - preliminary RTP "friendly" mode for H.263/H.263+ coding. (Juanjo)
746 - added GOB header for H.263/H.263+ coding on RTP mode (Juanjo)
747 - now H.263 picture size is returned on the first decoded frame (Juanjo)
748 - added first regression tests
749 - added MPEG-2 TS demuxer
750 - new demux API for libav
751 - more accurate and faster IDCT (Michael)
752 - faster and entropy-controlled motion search (Michael)
753 - two pass video encoding (Michael)
754 - new video rate control (Michael)
755 - added MSMPEG4V1, MSMPEGV2 and WMV1 support (Michael)
756 - great performance improvement of video encoders and decoders (Michael)
757 - new and faster bit readers and vlc parsers (Michael)
758 - high quality encoding mode: tries all macroblock/VLC types (Michael)
759 - added DV video decoder
760 - preliminary RTP/RTSP support in ffserver and libavformat
761 - H.263+ AIC decoding/encoding support (Juanjo)
762 - VCD MPEG-PS mode (Juanjo)
763 - PSNR stuff (Juanjo)
764 - simple stats output (Juanjo)
765 - 16-bit and 15-bit RGB/BGR/GBR support (Bisqwit)
770 - some header fixes (Zdenek Kabelac <kabi at informatics.muni.cz>)
771 - many MMX optimizations (Nick Kurshev <nickols_k at mail.ru>)
772 - added configure system (actually a small shell script)
773 - added MPEG audio layer 1/2/3 decoding using LGPL'ed mpglib by
774 Michael Hipp (temporary solution - waiting for integer only
776 - fixed VIDIOCSYNC interrupt
777 - added Intel H.263 decoding support ('I263' AVI fourCC)
778 - added Real Video 1.0 decoding (needs further testing)
779 - simplified image formats again. Added PGM format (=grey
780 pgm). Renamed old PGM to PGMYUV.
781 - fixed msmpeg4 slice issues (tell me if you still find problems)
782 - fixed OpenDivX bugs with newer versions (added VOL header decoding)
783 - added support for MPlayer interface
784 - added macroblock skip optimization
785 - added MJPEG decoder
786 - added mmx/mmxext IDCT from libmpeg2
787 - added pgmyuvpipe, ppm, and ppm_pipe formats (original patch by Celer
788 <celer at shell.scrypt.net>)
789 - added pixel format conversion layer (e.g. for MJPEG or PPM)
790 - added deinterlacing option
792 - MPEG-4 vol header fixes (Jonathan Marsden <snmjbm at pacbell.net>)
793 - ARM optimizations (Lionel Ulmer <lionel.ulmer at free.fr>).
794 - Windows porting of file converter
795 - added MJPEG raw format (input/ouput)
796 - added JPEG image format support (input/output)
801 - fixed some std header definitions (Bjorn Lindgren
802 <bjorn.e.lindgren at telia.com>).
803 - added MPEG demuxer (MPEG-1 and 2 compatible).
805 - added prototype RM demuxer
806 - added AC3 decoding (done with libac3 by Aaron Holtzman)
807 - added decoding codec parameter guessing (.e.g. for MPEG, because the
808 header does not include them)
809 - fixed header generation in MPEG-1, AVI and ASF muxer: wmplayer can now
810 play them (only tested video)
811 - fixed H.263 white bug
812 - fixed phase rounding in img resample filter
813 - add MMX code for polyphase img resample filter
814 - added CPU autodetection
815 - added generic title/author/copyright/comment string handling (ASF and RM
817 - added SWF demux to extract MP3 track (not usable yet because no MP3
819 - added fractional frame rate support
820 - codecs are no longer searched by read_header() (should fix ffserver
826 - BGR24 patch (initial patch by Jeroen Vreeken <pe1rxq at amsat.org>)
827 - fixed raw yuv output
828 - added motion rounding support in MPEG-4
829 - fixed motion bug rounding in MSMPEG4
830 - added B-frame handling in video core
831 - added full MPEG-1 decoding support
832 - added partial (frame only) MPEG-2 support
833 - changed the FOURCC code for H.263 to "U263" to be able to see the
834 +AVI/H.263 file with the UB Video H.263+ decoder. MPlayer works with
835 this +codec ;) (JuanJo).
836 - Halfpel motion estimation after MB type selection (JuanJo)
837 - added pgm and .Y.U.V output format
838 - suppressed 'img:' protocol. Simply use: /tmp/test%d.[pgm|Y] as input or
840 - added pgmpipe I/O format (original patch from Martin Aumueller
841 <lists at reserv.at>, but changed completely since we use a format
842 instead of a protocol)
847 - added H.263/MPEG-4/MSMPEG4 decoding support. MPEG-4 decoding support
848 (for OpenDivX) is almost complete: 8x8 MVs and rounding are
849 missing. MSMPEG4 support is complete.
850 - added prototype MPEG-1 decoder. Only I- and P-frames handled yet (it
851 can decode ffmpeg MPEGs :-)).
852 - added libavcodec API documentation (see apiexample.c).
853 - fixed image polyphase bug (the bottom of some images could be
855 - added support for non clipped motion vectors (decoding only)
856 and image sizes non-multiple of 16
857 - added support for AC prediction (decoding only)
858 - added file overwrite confirmation (can be disabled with -y)
859 - added custom size picture to H.263 using H.263+ (Juanjo)
864 - added MSMPEG4 (aka DivX) compatible encoder. Changed default codec
865 of AVI and ASF to DIV3.
866 - added -me option to set motion estimation method
867 (default=log). suppressed redundant -hq option.
868 - added options -acodec and -vcodec to force a given codec (useful for
871 - improved dct_quantize speed
872 - factorized some motion estimation code
877 - removing grab code from ffserver and moved it to ffmpeg. Added
878 multistream support to ffmpeg.
879 - added timeshifting support for live feeds (option ?date=xxx in the
881 - added high quality image resize code with polyphase filter (need
882 mmx/see optimization). Enable multiple image size support in ffserver.
883 - added multi live feed support in ffserver
884 - suppressed master feature from ffserver (it should be done with an
885 external program which opens the .ffm url and writes it to another
887 - added preliminary support for video stream parsing (WAV and AVI half
888 done). Added proper support for audio/video file conversion in
890 - added preliminary support for video file sending from ffserver
891 - redesigning I/O subsystem: now using URL based input and output
893 - added WAV format support
894 - added "tty user interface" to ffmpeg to stop grabbing gracefully
895 - added MMX/SSE optimizations to SAD (Sums of Absolutes Differences)
896 (Juan J. Sierralta P. a.k.a. "Juanjo" <juanjo at atmlab.utfsm.cl>)
897 - added MMX DCT from mpeg2_movie 1.5 (Juanjo)
898 - added new motion estimation algorithms, log and phods (Juanjo)
899 - changed directories: libav for format handling, libavcodec for
905 - added stereo in MPEG audio encoder
910 - added 'high quality' mode which use motion vectors. It can be used in
911 real time at low resolution.
912 - fixed rounding problems which caused quality problems at high
913 bitrates and large GOP size
916 version 0.3.2: small fixes
922 version 0.3.1: added avi/divx support
925 - added MPEG-4 codec compatible with OpenDivX. It is based on the H.263 codec
926 - added sound for flash format (not tested)
929 version 0.3: initial public release