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
37 - Error Resilient AAC syntax (ER AAC LC) decoding
38 - Low Delay AAC (ER AAC LD) decoding
39 - mux chapters in ASF files
40 - Opus in Ogg demuxing
41 - Enhanced Low Delay AAC (ER AAC ELD) decoding (no LD SBR support)
43 - HNM version 4 demuxer and video decoder
45 - raw HEVC, HEVC in MOV/MP4, HEVC in Matroska, HEVC in MPEG-TS demuxing
46 - remove avplay -vismv option, which has not worked for a long time
48 - setsar/setdar filters now support variables in ratio expressions
49 - dar variable in the scale filter now returns the actual DAR (i.e. a * sar)
53 - av_basename and av_dirname
54 - adobe and limelight publisher authentication in RTMP
55 - VDPAU hardware acceleration through normal hwaccel
60 - ashowinfo audio filter
61 - 24-bit FLAC encoding
63 - deprecated the avconv -vol option. the volume filter is to be used instead.
64 - multi-channel ALAC encoding up to 7.1
65 - TAK demuxer, parser, and decoder
66 - adaptive frame-level multithreading for H.264
70 - metadata (INFO tag) support in WAV muxer
71 - support for building DLLs using MSVC
72 - remove avserver daemon mode
73 - support building on the Plan 9 operating system
74 - ffv1: support version 1.3
79 - XWD encoder and decoder
80 - Support for fragmentation in the mov/mp4 muxer
81 - ISMV (Smooth Streaming) muxer
82 - CDXL demuxer and decoder
83 - Apple ProRes encoder
84 - Sun Rasterfile Encoder
86 - ID3v2 attached pictures reading and writing
87 - WMA Lossless decoder
89 - RealAudio Lossless decoder
91 - drop support for avconv without libavfilter
92 - add libavresample audio conversion library
93 - audio filters support in libavfilter and avconv
97 - avprobe output is now standard INI or JSON. The old format can still
100 - channelsplit audio filter
101 - RTMPT protocol support
102 - iLBC encoding/decoding via libilbc
103 - Microsoft Screen 1 decoder
105 - audio channel mapping filter
106 - Microsoft ATC Screen decoder
108 - TechSmith Screen Codec 2 decoder
109 - AAC encoding via libfdk-aac
110 - Microsoft Expression Encoder Screen decoder
111 - RTMPS protocol support
112 - RTMPTS protocol support
113 - JPEG 2000 encoding support through OpenJPEG
114 - G.723.1 demuxer and decoder
115 - RTMPE protocol support
116 - RTMPTE protocol support
117 - Canopus Lossless Codec decoder
118 - avconv -shortest option is now per-output file,
119 -pass and -passlogfile are now per-output stream
121 - Microsoft Screen 2 decoder
122 - RTP depacketization of JPEG
123 - Smooth Streaming live segmenter muxer
124 - RTP packetization of JPEG
125 - Opus decoder and encoder using libopus
126 - remove -same_quant, it hasn't worked for years
127 - support for building with MSVC
138 - Automatic thread count based on detection number of (available) CPU cores
139 - Deprecate libpostproc. If desired, the switch --enable-postproc will
140 enable it but it may be removed in a later Libav release.
141 - rv34: frame-level multi-threading
142 - optimized iMDCT transform on x86 using SSE for for mpegaudiodec
148 - Flash Screen Video 2 decoder
149 - ffplay/ffprobe/ffserver renamed to avplay/avprobe/avserver
150 - ffmpeg deprecated, added avconv, which is almost the same for now, except
151 for a few incompatible changes in the options, which will hopefully make them
152 easier to use. The changes are:
153 * The options placement is now strictly enforced! While in theory the
154 options for ffmpeg should be given in [input options] -i INPUT [output
155 options] OUTPUT order, in practice it was possible to give output options
156 before the -i and it mostly worked. Except when it didn't - the behavior was
157 a bit inconsistent. In avconv, it is not possible to mix input and output
158 options. All non-global options are reset after an input or output filename.
159 * All per-file options are now truly per-file - they apply only to the next
160 input or output file and specifying different values for different files
161 will now work properly (notably -ss and -t options).
162 * All per-stream options are now truly per-stream - it is possible to
163 specify which stream(s) should a given option apply to. See the Stream
164 specifiers section in the avconv manual for details.
165 * In ffmpeg some options (like -newvideo/-newaudio/...) are irregular in the
166 sense that they're specified after the output filename instead of before,
167 like all other options. In avconv this irregularity is removed, all options
168 apply to the next input or output file.
169 * -newvideo/-newaudio/-newsubtitle options were removed. Not only were they
170 irregular and highly confusing, they were also redundant. In avconv the -map
171 option will create new streams in the output file and map input streams to
172 them. E.g. avconv -i INPUT -map 0 OUTPUT will create an output stream for
173 each stream in the first input file.
174 * The -map option now has slightly different and more powerful syntax:
175 + Colons (':') are used to separate file index/stream type/stream index
176 instead of dots. Comma (',') is used to separate the sync stream instead
177 of colon.. This is done for consistency with other options.
178 + It's possible to specify stream type. E.g. -map 0:a:2 creates an
179 output stream from the third input audio stream.
180 + Omitting the stream index now maps all the streams of the given type,
181 not just the first. E.g. -map 0:s creates output streams for all the
182 subtitle streams in the first input file.
183 + Since -map can now match multiple streams, negative mappings were
184 introduced. Negative mappings disable some streams from an already
185 defined map. E.g. '-map 0 -map -0:a:1' means 'create output streams for
186 all the stream in the first input file, except for the second audio
188 * There is a new option -c (or -codec) for choosing the decoder/encoder to
189 use, which allows to precisely specify target stream(s) consistently with
190 other options. E.g. -c:v lib264 sets the codec for all video streams, -c:a:0
191 libvorbis sets the codec for the first audio stream and -c copy copies all
192 the streams without reencoding. Old -vcodec/-acodec/-scodec options are now
194 * It is now possible to precisely specify which stream should an AVOption
195 apply to. E.g. -b:v:0 2M sets the bitrate for the first video stream, while
196 -b:a 128k sets the bitrate for all audio streams. Note that the old -ab 128k
197 syntax is deprecated and will stop working soon.
198 * -map_chapters now takes only an input file index and applies to the next
199 output file. This is consistent with how all the other options work.
200 * -map_metadata now takes only an input metadata specifier and applies to
201 the next output file. Output metadata specifier is now part of the option
202 name, similarly to the AVOptions/map/codec feature above.
203 * -metadata can now be used to set metadata on streams and chapters, e.g.
204 -metadata:s:1 language=eng sets the language of the first stream to 'eng'.
205 This made -vlang/-alang/-slang options redundant, so they were removed.
206 * -qscale option now uses stream specifiers and applies to all streams, not
207 just video. I.e. plain -qscale number would now apply to all streams. To get
208 the old behavior, use -qscale:v. Also there is now a shortcut -q for -qscale
209 and -aq is now an alias for -q:a.
210 * -vbsf/-absf/-sbsf options were removed and replaced by a -bsf option which
211 uses stream specifiers. Use -bsf:v/a/s instead of the old options.
212 * -itsscale option now uses stream specifiers, so its argument is only the
214 * -intra option was removed, use -g 0 for the same effect.
215 * -psnr option was removed, use -flags +psnr for the same effect.
216 * -vf option is now an alias to the new -filter option, which uses stream specifiers.
217 * -vframes/-aframes/-dframes options are now aliases to the new -frames option.
218 * -vtag/-atag/-stag options are now aliases to the new -tag option.
220 - Windows Media Image decoder
224 - libcdio-paranoia input device for audio CD grabbing
226 - Apple ProRes decoder
227 - CELT in Ogg demuxing
228 - VC-1 interlaced decoding
229 - lut, lutrgb, and lutyuv filters
232 - Speex encoding via libspeex
233 - 4:2:2 H.264 decoding support
234 - 4:2:2 and 4:4:4 H.264 encoding with libx264
235 - Pulseaudio input device
236 - replacement Indeo 3 decoder
237 - TLS/SSL and HTTPS protocol support
238 - AVOptions API rewritten and documented
239 - most of CODEC_FLAG2_*, some CODEC_FLAG_* and many codec-specific fields in
240 AVCodecContext deprecated. Codec private options should be used instead.
241 - Properly working defaults in libx264 wrapper, support for native presets.
242 - Encrypted OMA files support
243 - Discworld II BMV decoding support
245 - OS X Video Decoder Acceleration (VDA) support
246 - CRI ADX audio format muxer and demuxer
247 - Playstation Portable PMP format demuxer
248 - PCM format support in OMA demuxer
250 - Dxtory capture format decoder
251 - v410 QuickTime uncompressed 4:4:4 10-bit encoder and decoder
253 - Simple segmenting muxer
260 - E-AC-3 audio encoder
261 - ac3enc: add channel coupling support
262 - floating-point sample format support for (E-)AC-3, DCA, AAC, Vorbis decoders
263 - H.264/MPEG frame-level multithreading
264 - av_metadata_* functions renamed to av_dict_* and moved to libavutil
265 - 4:4:4 H.264 decoding support
266 - 10-bit H.264 optimizations for x86
267 - bump libswscale for recently reported ABI break
272 - VP8 frame-level multithreading
273 - NEON optimizations for VP8
274 - removed a lot of deprecated API cruft
275 - FFT and IMDCT optimizations for AVX (Sandy Bridge) processors
277 - SMPTE 302M AES3 audio decoder
278 - ffmpeg no longer quits after the 'q' key is pressed; use 'ctrl+c' instead
279 - 9bit and 10bit per sample support in the H.264 decoder
284 - WebM support in Matroska de/muxer
285 - low overhead Ogg muxing
287 - VP8 de/encoding via libvpx
288 - Demuxer for On2's IVF format
289 - Pictor/PC Paint decoder
291 - libfaad2 wrapper removed
292 - DTS-ES extension (XCh) decoding support
294 - RTSP tunneling over HTTP
295 - RTP depacketization of SVQ3
296 - -strict inofficial replaced by -strict unofficial
297 - ffplay -exitonkeydown and -exitonmousedown options added
298 - native GSM / GSM MS decoder
299 - RTP depacketization of QDM2
300 - ANSI/ASCII art playback system
301 - Lego Mindstorms RSO de/muxer
302 - SubRip subtitle file muxer and demuxer
303 - Chinese AVS encoding via libxavs
304 - ffprobe -show_packets option added
305 - RTP packetization of Theora and Vorbis
306 - RTP depacketization of MP4A-LATM
307 - RTP packetization and depacketization of VP8
309 - Apple HTTP Live Streaming demuxer
312 - G.722 ADPCM audio encoder/decoder
315 - frei0r wrapper filter
316 - change crop filter syntax to width:height:x:y
317 - make the crop filter accept parametric expressions
318 - make ffprobe accept AVFormatContext options
321 - Demuxer for Leitch/Harris' VR native stream format (LXF)
322 - RTP depacketization of the X-QT QuickTime format
323 - SAP (Session Announcement Protocol, RFC 2974) muxer and demuxer
325 - ffmpeg -crop* options removed
326 - transpose filter added
327 - ffmpeg -force_key_frames option added
328 - demuxer for receiving raw rtp:// URLs without an SDP description
329 - single stream LATM/LOAS decoder
330 - setpts filter added
331 - Win64 support for optimized x86 assembly functions
332 - MJPEG/AVI1 to JPEG/JFIF bitstream filter
333 - ASS subtitle encoder and decoder
334 - IEC 61937 encapsulation for E-AC-3, TrueHD, DTS-HD (for HDMI passthrough)
335 - overlay filter added
336 - rename aspect filter to setdar, and pixelaspect to setsar
338 - Mobotix .mxg demuxer
339 - frei0r source added
340 - hqdn3d filter added
341 - RTP depacketization of QCELP
343 - gradfun filter added
345 - replace the ocv_smooth filter with a more generic ocv filter
346 - Windows Televison (WTV) demuxer
347 - FFmpeg metadata format muxer and demuxer
348 - SubRip (srt) subtitle decoder
349 - floating-point AC-3 encoder added
351 - ffmpeg -copytb option added
353 - Wing Commander IV movies decoder added
355 - Bink version 'b' audio and video decoder
356 - Bitmap Brothers JV playback system
357 - Apple HTTP Live Streaming protocol handler
358 - sndio support for playback and record
359 - Linux framebuffer input device added
360 - Chronomaster DFA decoder
361 - Mobotix MxPEG decoder
362 - AAC encoding via libvo-aacenc
363 - AMR-WB encoding via libvo-amrwbenc
365 - fieldorder video filter added
370 - PB-frame decoding for H.263
371 - deprecated vhook subsystem removed
372 - deprecated old scaler removed
374 - Alpha channel scaler
376 - RTP packetization of H.263
377 - RTP packetization of AMR
378 - RTP depacketization of Vorbis
379 - CorePNG decoding support
380 - Cook multichannel decoding support
381 - introduced avlanguage helpers in libavformat
382 - 8088flex TMV demuxer and decoder
383 - per-stream language-tags extraction in asfdec
384 - V210 decoder and encoder
385 - remaining GPL parts in AC-3 decoder converted to LGPL
387 - SoX native format muxer and demuxer
388 - AMR-NB decoding/encoding, AMR-WB decoding via OpenCORE libraries
390 - Electronic Arts Madcow decoder
391 - DivX (XSUB) subtitle encoder
392 - nonfree libamr support for AMR-NB/WB decoding/encoding removed
393 - experimental AAC encoder
394 - RTP depacketization of ASF and RTSP from WMS servers
395 - RTMP support in libavformat
396 - noX handling for OPT_BOOL X options
398 - IEC-61937 compatible Muxer
400 - Bluray (PGS) subtitle decoder
401 - LPCM support in MPEG-TS (HDMV RID as found on Blu-ray disks)
403 - Core Audio Format demuxer
405 - MD STUDIO audio demuxer
406 - RF64 support in WAV demuxer
407 - MPEG-4 Audio Lossless Coding (ALS) decoder
408 - -formats option split into -formats, -codecs, -bsfs, and -protocols
410 - CDG demuxer and decoder
412 - Auravision Aura 1 and 2 decoders
413 - Deluxe Paint Animation playback system
415 - Adobe Filmstrip muxer and demuxer
416 - RTP depacketization of H.263
417 - Bink demuxer and audio/video decoders
418 - enable symbol versioning by default for linkers that support it
419 - IFF PBM/ILBM bitmap decoder
422 - RTP depacketization of AMR
428 - Kega Game Video (KGV1) decoder
429 - VorbisComment writing for FLAC, Ogg FLAC and Ogg Speex files
430 - RTP depacketization of Theora
431 - HTTP Digest authentication
432 - RTMP/RTMPT/RTMPS/RTMPE/RTMPTE protocol support via librtmp
433 - Psygnosis YOP demuxer and video decoder
434 - spectral extension support in the E-AC-3 decoder
435 - unsharp video filter
436 - RTP hinting in the mov/3gp/mp4 muxer
437 - Dirac in Ogg demuxing
438 - seek to keyframes in Ogg
439 - 4:2:2 and 4:4:4 Theora decoding
440 - 35% faster VP3/Theora decoding
441 - faster AAC decoding
442 - faster H.264 decoding
443 - RealAudio 1.0 (14.4K) encoder
448 - DV50 AKA DVCPRO50 encoder, decoder, muxer and demuxer
449 - TechSmith Camtasia (TSCC) video decoder
450 - IBM Ultimotion (ULTI) video decoder
451 - Sierra Online audio file demuxer and decoder
452 - Apple QuickDraw (qdrw) video decoder
453 - Creative ADPCM audio decoder (16 bits as well as 8 bits schemes)
454 - Electronic Arts Multimedia (WVE/UV2/etc.) file demuxer
455 - Miro VideoXL (VIXL) video decoder
456 - H.261 video encoder
458 - Nullsoft Video (NSV) file demuxer
459 - Shorten audio decoder
461 - Apple Lossless Audio Codec (ALAC) decoder
462 - Winnov WNV1 video decoder
463 - Autodesk Animator Studio Codec (AASC) decoder
464 - Indeo 2 video decoder
465 - Fraps FPS1 video decoder
466 - Snow video encoder/decoder
467 - Sonic audio encoder/decoder
468 - Vorbis audio decoder
469 - Macromedia ADPCM decoder
470 - Duck TrueMotion 2 video decoder
471 - support for decoding FLX and DTA extensions in FLIC files
472 - H.264 custom quantization matrices support
473 - ffserver fixed, it should now be usable again
475 - Real Cooker audio decoder
476 - TrueSpeech audio decoder
477 - WMA2 audio decoder fixed, now all files should play correctly
478 - RealAudio 14.4 and 28.8 decoders fixed
480 - build system improvements
481 - tabs and trailing whitespace removed from the codebase
482 - CamStudio video decoder
483 - AIFF/AIFF-C audio format, encoding and decoding
484 - ADTS AAC file reading and writing
485 - Creative VOC file reading and writing
486 - American Laser Games multimedia (*.mm) playback system
487 - Zip Motion Blocks Video decoder
488 - improved Theora/VP3 decoder
489 - True Audio (TTA) decoder
490 - AVS demuxer and video decoder
492 - Smacker demuxer and decoder
493 - NuppelVideo/MythTV demuxer and RTjpeg decoder
495 - MPEG-2 intra VLC support
496 - MPEG-2 4:2:2 encoder
497 - Flash Screen Video decoder
499 - Chinese AVS decoder
502 - VC-1/WMV3/WMV9 video decoder
505 - VMware video decoder
508 - WavPack lossless audio decoder
509 - Targa (.TGA) picture decoder
510 - Vorbis audio encoder
511 - Delphine Software .cin demuxer/audio and video decoder
512 - Tiertex .seq demuxer/video decoder
514 - TIFF picture encoder and decoder
515 - GIF picture decoder
516 - Intel Music Coder decoder
517 - Zip Motion Blocks Video encoder
519 - Flash Screen Video encoder
520 - Theora encoding via libtheora
523 - GSM-MS encoder and decoder
525 - DXA demuxer and decoder
527 - Gamecube movie (.THP) playback system
528 - Blackfin optimizations
529 - Interplay C93 demuxer and video decoder
530 - Bethsoft VID demuxer and video decoder
533 - V.Flash PTX decoder
534 - RoQ muxer, RoQ audio encoder
535 - Renderware TXD demuxer and decoder
536 - extern C declarations for C++ removed from headers
537 - sws_flags command line option
541 - OS/2 support removed and restored again
544 - additional SPARC (VIS) optimizations
546 - slice-based parallel H.264 decoding
547 - Monkey's Audio demuxer and decoder
548 - AMV audio and video decoder
550 - H.264 PAFF decoding
551 - Nellymoser ASAO decoder
552 - Beam Software SIFF demuxer and decoder
553 - libvorbis Vorbis decoding removed in favor of native decoder
554 - IntraX8 (J-Frame) subdecoder for WMV2 and VC-1
555 - Ogg (Theora, Vorbis and FLAC) muxer
556 - The "device" muxers and demuxers are now in a new libavdevice library
557 - PC Paintbrush PCX decoder
558 - Sun Rasterfile decoder
559 - TechnoTrend PVA demuxer
560 - Linux Media Labs MPEG-4 (LMLM4) demuxer
561 - AVM2 (Flash 9) SWF muxer
562 - QT variant of IMA ADPCM encoder
564 - iPod/iPhone compatible mp4 muxer
566 - MSN TCP Webcam stream demuxer
567 - RL2 demuxer / decoder
570 - non-recursive Makefiles
572 - MAXIS EA XA (.xa) demuxer / decoder
576 - Electronic Arts CMV decoder
577 - Motion Pixels Video decoder
578 - Motion Pixels MVI demuxer
579 - removed animated GIF decoder/demuxer
580 - D-Cinema audio muxer
581 - Electronic Arts TGV decoder
582 - Apple Lossless Audio Codec (ALAC) encoder
584 - floating point PCM encoder/decoder
586 - DV100 AKA DVCPRO HD decoder and demuxer
587 - E-AC-3 support added to AC-3 decoder
588 - Nellymoser ASAO encoder
589 - ASS and SSA demuxer and muxer
590 - liba52 wrapper removed
591 - SVQ3 watermark decoding support
592 - Speex decoding via libspeex
593 - Electronic Arts TGQ decoder
595 - QCELP / PureVoice decoder
597 - hybrid WavPack support
598 - R3D REDCODE demuxer
599 - ALSA support for playback and record
600 - Electronic Arts TQI decoder
601 - OpenJPEG based JPEG 2000 decoder
602 - NC (NC4600) camera file demuxer
603 - Gopher client support
605 - generic metadata API
610 - DV encoder, DV muxer
611 - Microsoft RLE video decoder
612 - Microsoft Video-1 decoder
613 - Apple Animation (RLE) decoder
614 - Apple Graphics (SMC) decoder
615 - Apple Video (RPZA) decoder
617 - Sega FILM (CPK) file demuxer
618 - Westwood multimedia support (VQA & AUD files)
619 - Id Quake II CIN playback support
621 - FLIC playback support
622 - RealVideo 2.0 (RV20) decoder
623 - Duck TrueMotion v1 (DUCK) video decoder
624 - Sierra VMD demuxer and video decoder
625 - MSZH and ZLIB decoder support
629 - rate distortion optimal cbp support
630 - rate distorted optimal ac prediction for MPEG-4
631 - rate distorted optimal lambda->qp support
632 - AAC encoding with libfaac
633 - Sunplus JPEG codec (SP5X) support
634 - use Lagrange multipler instead of QP for ratecontrol
635 - Theora/VP3 decoding support
636 - XA and ADX ADPCM codecs
637 - export MPEG-2 active display area / pan scan
638 - Add support for configuring with IBM XLC
639 - floating point AAN DCT
640 - initial support for zygo video (not complete)
642 - new audio/video parser API
644 - av_read_frame() and av_seek_frame() support
645 - missing last frame fixes
646 - seek by mouse in ffplay
647 - noise reduction of DCT coefficients
648 - H.263 OBMC & 4MV support
649 - H.263 alternative inter vlc support
651 - H.263 slice structured mode
652 - interlaced DCT support for MPEG-2 encoding
653 - stuffing to stay above min_bitrate
654 - MB type & QP visualization
655 - frame stepping for ffplay
656 - interlaced motion estimation
657 - alternate scantable support
658 - SVCD scan offset support
661 - quantizer noise shaping
662 - G.726 ADPCM audio codec
664 - multithreaded/SMP motion estimation
665 - multithreaded/SMP encoding for MPEG-1/MPEG-2/MPEG-4/H.263
666 - multithreaded/SMP decoding for MPEG-2
668 - Metrowerks CodeWarrior suppport
669 - H.263+ custom pcf support
670 - nicer output for 'ffmpeg -formats'
672 - SGI image format, encoding and decoding
673 - H.264 loop filter support
674 - H.264 CABAC support
675 - nicer looking arrows for the motion vector visualization
676 - improved VCD support
677 - audio timestamp drift compensation
678 - MPEG-2 YUV 422/444 support
679 - polyphase kaiser windowed sinc and blackman nuttall windowed sinc audio resample
680 - better image scaling
682 - correctly interleave packets during encoding
683 - VIS optimized motion compensation
684 - intra_dc_precision>0 encoding support
685 - support reuse of motion vectors/MB types/field select values of the source video
686 - more accurate deblock filter
688 - many optimizations and bugfixes
689 - FunCom ISS audio file demuxer and according ADPCM decoding
694 - MPEG-2 video encoding (Michael)
695 - Id RoQ playback subsystem (Mike Melanson and Tim Ferguson)
696 - Wing Commander III Movie (.mve) file playback subsystem (Mike Melanson
698 - Xan DPCM audio decoder (Mario Brito)
699 - Interplay MVE playback subsystem (Mike Melanson)
700 - Duck DK3 and DK4 ADPCM audio decoders (Mike Melanson)
705 - RealAudio 1.0 (14_4) and 2.0 (28_8) native decoders. Author unknown, code from mplayerhq
706 (originally from public domain player for Amiga at http://www.honeypot.net/audio)
707 - current version now also compiles with older GCC (Fabrice)
708 - 4X multimedia playback system including 4xm file demuxer (Mike
709 Melanson), and 4X video and audio codecs (Michael)
710 - Creative YUV (CYUV) decoder (Mike Melanson)
711 - FFV1 codec (our very simple lossless intra only codec, compresses much better
712 than HuffYUV) (Michael)
713 - ASV1 (Asus), H.264, Intel indeo3 codecs have been added (various)
714 - tiny PNG encoder and decoder, tiny GIF decoder, PAM decoder (PPM with
715 alpha support), JPEG YUV colorspace support. (Fabrice Bellard)
716 - ffplay has been replaced with a newer version which uses SDL (optionally)
717 for multiplatform support (Fabrice)
718 - Sorenson Version 3 codec (SVQ3) support has been added (decoding only) - donated
720 - AMR format has been added (Johannes Carlsson)
721 - 3GP support has been added (Johannes Carlsson)
722 - VP3 codec has been added (Mike Melanson)
723 - more MPEG-1/2 fixes
724 - better multiplatform support, MS Visual Studio fixes (various)
725 - AltiVec optimizations (Magnus Damn and others)
726 - SH4 processor support has been added (BERO)
727 - new public interfaces (avcodec_get_pix_fmt) (Roman Shaposhnick)
728 - VOB streaming support (Brian Foley)
729 - better MP3 autodetection (Andriy Rysin)
730 - qpel encoding (Michael)
731 - 4mv+b frames encoding finally fixed (Michael)
732 - chroma ME (Michael)
733 - 5 comparison functions for ME (Michael)
734 - B-frame encoding speedup (Michael)
735 - WMV2 codec (unfinished - Michael)
736 - user specified diamond size for EPZS (Michael)
737 - Playstation STR playback subsystem, still experimental (Mike and Michael)
738 - ASV2 codec (Michael)
739 - CLJR decoder (Alex)
741 .. And lots more new enhancements and fixes.
746 - completely new integer only MPEG audio layer 1/2/3 decoder rewritten
748 - Recoded DCT and motion vector search with gcc (no longer depends on nasm)
749 - fix quantization bug in AC3 encoder
750 - added PCM codecs and format. Corrected WAV/AVI/ASF PCM issues
751 - added prototype ffplay program
752 - added GOB header parsing on H.263/H.263+ decoder (Juanjo)
753 - bug fix on MCBPC tables of H.263 (Juanjo)
754 - bug fix on DC coefficients of H.263 (Juanjo)
755 - added Advanced Prediction Mode on H.263/H.263+ decoder (Juanjo)
756 - now we can decode H.263 streams found in QuickTime files (Juanjo)
757 - now we can decode H.263 streams found in VIVO v1 files(Juanjo)
758 - preliminary RTP "friendly" mode for H.263/H.263+ coding. (Juanjo)
759 - added GOB header for H.263/H.263+ coding on RTP mode (Juanjo)
760 - now H.263 picture size is returned on the first decoded frame (Juanjo)
761 - added first regression tests
762 - added MPEG-2 TS demuxer
763 - new demux API for libav
764 - more accurate and faster IDCT (Michael)
765 - faster and entropy-controlled motion search (Michael)
766 - two pass video encoding (Michael)
767 - new video rate control (Michael)
768 - added MSMPEG4V1, MSMPEGV2 and WMV1 support (Michael)
769 - great performance improvement of video encoders and decoders (Michael)
770 - new and faster bit readers and vlc parsers (Michael)
771 - high quality encoding mode: tries all macroblock/VLC types (Michael)
772 - added DV video decoder
773 - preliminary RTP/RTSP support in ffserver and libavformat
774 - H.263+ AIC decoding/encoding support (Juanjo)
775 - VCD MPEG-PS mode (Juanjo)
776 - PSNR stuff (Juanjo)
777 - simple stats output (Juanjo)
778 - 16-bit and 15-bit RGB/BGR/GBR support (Bisqwit)
783 - some header fixes (Zdenek Kabelac <kabi at informatics.muni.cz>)
784 - many MMX optimizations (Nick Kurshev <nickols_k at mail.ru>)
785 - added configure system (actually a small shell script)
786 - added MPEG audio layer 1/2/3 decoding using LGPL'ed mpglib by
787 Michael Hipp (temporary solution - waiting for integer only
789 - fixed VIDIOCSYNC interrupt
790 - added Intel H.263 decoding support ('I263' AVI fourCC)
791 - added Real Video 1.0 decoding (needs further testing)
792 - simplified image formats again. Added PGM format (=grey
793 pgm). Renamed old PGM to PGMYUV.
794 - fixed msmpeg4 slice issues (tell me if you still find problems)
795 - fixed OpenDivX bugs with newer versions (added VOL header decoding)
796 - added support for MPlayer interface
797 - added macroblock skip optimization
798 - added MJPEG decoder
799 - added mmx/mmxext IDCT from libmpeg2
800 - added pgmyuvpipe, ppm, and ppm_pipe formats (original patch by Celer
801 <celer at shell.scrypt.net>)
802 - added pixel format conversion layer (e.g. for MJPEG or PPM)
803 - added deinterlacing option
805 - MPEG-4 vol header fixes (Jonathan Marsden <snmjbm at pacbell.net>)
806 - ARM optimizations (Lionel Ulmer <lionel.ulmer at free.fr>).
807 - Windows porting of file converter
808 - added MJPEG raw format (input/ouput)
809 - added JPEG image format support (input/output)
814 - fixed some std header definitions (Bjorn Lindgren
815 <bjorn.e.lindgren at telia.com>).
816 - added MPEG demuxer (MPEG-1 and 2 compatible).
818 - added prototype RM demuxer
819 - added AC3 decoding (done with libac3 by Aaron Holtzman)
820 - added decoding codec parameter guessing (.e.g. for MPEG, because the
821 header does not include them)
822 - fixed header generation in MPEG-1, AVI and ASF muxer: wmplayer can now
823 play them (only tested video)
824 - fixed H.263 white bug
825 - fixed phase rounding in img resample filter
826 - add MMX code for polyphase img resample filter
827 - added CPU autodetection
828 - added generic title/author/copyright/comment string handling (ASF and RM
830 - added SWF demux to extract MP3 track (not usable yet because no MP3
832 - added fractional frame rate support
833 - codecs are no longer searched by read_header() (should fix ffserver
839 - BGR24 patch (initial patch by Jeroen Vreeken <pe1rxq at amsat.org>)
840 - fixed raw yuv output
841 - added motion rounding support in MPEG-4
842 - fixed motion bug rounding in MSMPEG4
843 - added B-frame handling in video core
844 - added full MPEG-1 decoding support
845 - added partial (frame only) MPEG-2 support
846 - changed the FOURCC code for H.263 to "U263" to be able to see the
847 +AVI/H.263 file with the UB Video H.263+ decoder. MPlayer works with
848 this +codec ;) (JuanJo).
849 - Halfpel motion estimation after MB type selection (JuanJo)
850 - added pgm and .Y.U.V output format
851 - suppressed 'img:' protocol. Simply use: /tmp/test%d.[pgm|Y] as input or
853 - added pgmpipe I/O format (original patch from Martin Aumueller
854 <lists at reserv.at>, but changed completely since we use a format
855 instead of a protocol)
860 - added H.263/MPEG-4/MSMPEG4 decoding support. MPEG-4 decoding support
861 (for OpenDivX) is almost complete: 8x8 MVs and rounding are
862 missing. MSMPEG4 support is complete.
863 - added prototype MPEG-1 decoder. Only I- and P-frames handled yet (it
864 can decode ffmpeg MPEGs :-)).
865 - added libavcodec API documentation (see apiexample.c).
866 - fixed image polyphase bug (the bottom of some images could be
868 - added support for non clipped motion vectors (decoding only)
869 and image sizes non-multiple of 16
870 - added support for AC prediction (decoding only)
871 - added file overwrite confirmation (can be disabled with -y)
872 - added custom size picture to H.263 using H.263+ (Juanjo)
877 - added MSMPEG4 (aka DivX) compatible encoder. Changed default codec
878 of AVI and ASF to DIV3.
879 - added -me option to set motion estimation method
880 (default=log). suppressed redundant -hq option.
881 - added options -acodec and -vcodec to force a given codec (useful for
884 - improved dct_quantize speed
885 - factorized some motion estimation code
890 - removing grab code from ffserver and moved it to ffmpeg. Added
891 multistream support to ffmpeg.
892 - added timeshifting support for live feeds (option ?date=xxx in the
894 - added high quality image resize code with polyphase filter (need
895 mmx/see optimization). Enable multiple image size support in ffserver.
896 - added multi live feed support in ffserver
897 - suppressed master feature from ffserver (it should be done with an
898 external program which opens the .ffm url and writes it to another
900 - added preliminary support for video stream parsing (WAV and AVI half
901 done). Added proper support for audio/video file conversion in
903 - added preliminary support for video file sending from ffserver
904 - redesigning I/O subsystem: now using URL based input and output
906 - added WAV format support
907 - added "tty user interface" to ffmpeg to stop grabbing gracefully
908 - added MMX/SSE optimizations to SAD (Sums of Absolutes Differences)
909 (Juan J. Sierralta P. a.k.a. "Juanjo" <juanjo at atmlab.utfsm.cl>)
910 - added MMX DCT from mpeg2_movie 1.5 (Juanjo)
911 - added new motion estimation algorithms, log and phods (Juanjo)
912 - changed directories: libav for format handling, libavcodec for
918 - added stereo in MPEG audio encoder
923 - added 'high quality' mode which use motion vectors. It can be used in
924 real time at low resolution.
925 - fixed rounding problems which caused quality problems at high
926 bitrates and large GOP size
929 version 0.3.2: small fixes
935 version 0.3.1: added avi/divx support
938 - added MPEG-4 codec compatible with OpenDivX. It is based on the H.263 codec
939 - added sound for flash format (not tested)
942 version 0.3: initial public release