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 - 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)
51 - support for decoding through VDPAU in avconv (the -hwaccel option)
55 - av_basename and av_dirname
56 - adobe and limelight publisher authentication in RTMP
57 - VDPAU hardware acceleration through normal hwaccel
62 - ashowinfo audio filter
63 - 24-bit FLAC encoding
65 - deprecated the avconv -vol option. the volume filter is to be used instead.
66 - multi-channel ALAC encoding up to 7.1
67 - TAK demuxer, parser, and decoder
68 - adaptive frame-level multithreading for H.264
72 - metadata (INFO tag) support in WAV muxer
73 - support for building DLLs using MSVC
74 - remove avserver daemon mode
75 - support building on the Plan 9 operating system
76 - ffv1: support version 1.3
81 - XWD encoder and decoder
82 - Support for fragmentation in the mov/mp4 muxer
83 - ISMV (Smooth Streaming) muxer
84 - CDXL demuxer and decoder
85 - Apple ProRes encoder
86 - Sun Rasterfile Encoder
88 - ID3v2 attached pictures reading and writing
89 - WMA Lossless decoder
91 - RealAudio Lossless decoder
93 - drop support for avconv without libavfilter
94 - add libavresample audio conversion library
95 - audio filters support in libavfilter and avconv
99 - avprobe output is now standard INI or JSON. The old format can still
100 be used with -of old.
101 - Indeo Audio decoder
102 - channelsplit audio filter
103 - RTMPT protocol support
104 - iLBC encoding/decoding via libilbc
105 - Microsoft Screen 1 decoder
107 - audio channel mapping filter
108 - Microsoft ATC Screen decoder
110 - TechSmith Screen Codec 2 decoder
111 - AAC encoding via libfdk-aac
112 - Microsoft Expression Encoder Screen decoder
113 - RTMPS protocol support
114 - RTMPTS protocol support
115 - JPEG 2000 encoding support through OpenJPEG
116 - G.723.1 demuxer and decoder
117 - RTMPE protocol support
118 - RTMPTE protocol support
119 - Canopus Lossless Codec decoder
120 - avconv -shortest option is now per-output file,
121 -pass and -passlogfile are now per-output stream
123 - Microsoft Screen 2 decoder
124 - RTP depacketization of JPEG
125 - Smooth Streaming live segmenter muxer
126 - RTP packetization of JPEG
127 - Opus decoder and encoder using libopus
128 - remove -same_quant, it hasn't worked for years
129 - support for building with MSVC
140 - Automatic thread count based on detection number of (available) CPU cores
141 - Deprecate libpostproc. If desired, the switch --enable-postproc will
142 enable it but it may be removed in a later Libav release.
143 - rv34: frame-level multi-threading
144 - optimized iMDCT transform on x86 using SSE for for mpegaudiodec
150 - Flash Screen Video 2 decoder
151 - ffplay/ffprobe/ffserver renamed to avplay/avprobe/avserver
152 - ffmpeg deprecated, added avconv, which is almost the same for now, except
153 for a few incompatible changes in the options, which will hopefully make them
154 easier to use. The changes are:
155 * The options placement is now strictly enforced! While in theory the
156 options for ffmpeg should be given in [input options] -i INPUT [output
157 options] OUTPUT order, in practice it was possible to give output options
158 before the -i and it mostly worked. Except when it didn't - the behavior was
159 a bit inconsistent. In avconv, it is not possible to mix input and output
160 options. All non-global options are reset after an input or output filename.
161 * All per-file options are now truly per-file - they apply only to the next
162 input or output file and specifying different values for different files
163 will now work properly (notably -ss and -t options).
164 * All per-stream options are now truly per-stream - it is possible to
165 specify which stream(s) should a given option apply to. See the Stream
166 specifiers section in the avconv manual for details.
167 * In ffmpeg some options (like -newvideo/-newaudio/...) are irregular in the
168 sense that they're specified after the output filename instead of before,
169 like all other options. In avconv this irregularity is removed, all options
170 apply to the next input or output file.
171 * -newvideo/-newaudio/-newsubtitle options were removed. Not only were they
172 irregular and highly confusing, they were also redundant. In avconv the -map
173 option will create new streams in the output file and map input streams to
174 them. E.g. avconv -i INPUT -map 0 OUTPUT will create an output stream for
175 each stream in the first input file.
176 * The -map option now has slightly different and more powerful syntax:
177 + Colons (':') are used to separate file index/stream type/stream index
178 instead of dots. Comma (',') is used to separate the sync stream instead
179 of colon.. This is done for consistency with other options.
180 + It's possible to specify stream type. E.g. -map 0:a:2 creates an
181 output stream from the third input audio stream.
182 + Omitting the stream index now maps all the streams of the given type,
183 not just the first. E.g. -map 0:s creates output streams for all the
184 subtitle streams in the first input file.
185 + Since -map can now match multiple streams, negative mappings were
186 introduced. Negative mappings disable some streams from an already
187 defined map. E.g. '-map 0 -map -0:a:1' means 'create output streams for
188 all the stream in the first input file, except for the second audio
190 * There is a new option -c (or -codec) for choosing the decoder/encoder to
191 use, which allows to precisely specify target stream(s) consistently with
192 other options. E.g. -c:v lib264 sets the codec for all video streams, -c:a:0
193 libvorbis sets the codec for the first audio stream and -c copy copies all
194 the streams without reencoding. Old -vcodec/-acodec/-scodec options are now
196 * It is now possible to precisely specify which stream should an AVOption
197 apply to. E.g. -b:v:0 2M sets the bitrate for the first video stream, while
198 -b:a 128k sets the bitrate for all audio streams. Note that the old -ab 128k
199 syntax is deprecated and will stop working soon.
200 * -map_chapters now takes only an input file index and applies to the next
201 output file. This is consistent with how all the other options work.
202 * -map_metadata now takes only an input metadata specifier and applies to
203 the next output file. Output metadata specifier is now part of the option
204 name, similarly to the AVOptions/map/codec feature above.
205 * -metadata can now be used to set metadata on streams and chapters, e.g.
206 -metadata:s:1 language=eng sets the language of the first stream to 'eng'.
207 This made -vlang/-alang/-slang options redundant, so they were removed.
208 * -qscale option now uses stream specifiers and applies to all streams, not
209 just video. I.e. plain -qscale number would now apply to all streams. To get
210 the old behavior, use -qscale:v. Also there is now a shortcut -q for -qscale
211 and -aq is now an alias for -q:a.
212 * -vbsf/-absf/-sbsf options were removed and replaced by a -bsf option which
213 uses stream specifiers. Use -bsf:v/a/s instead of the old options.
214 * -itsscale option now uses stream specifiers, so its argument is only the
216 * -intra option was removed, use -g 0 for the same effect.
217 * -psnr option was removed, use -flags +psnr for the same effect.
218 * -vf option is now an alias to the new -filter option, which uses stream specifiers.
219 * -vframes/-aframes/-dframes options are now aliases to the new -frames option.
220 * -vtag/-atag/-stag options are now aliases to the new -tag option.
222 - Windows Media Image decoder
226 - libcdio-paranoia input device for audio CD grabbing
228 - Apple ProRes decoder
229 - CELT in Ogg demuxing
230 - VC-1 interlaced decoding
231 - lut, lutrgb, and lutyuv filters
234 - Speex encoding via libspeex
235 - 4:2:2 H.264 decoding support
236 - 4:2:2 and 4:4:4 H.264 encoding with libx264
237 - Pulseaudio input device
238 - replacement Indeo 3 decoder
239 - TLS/SSL and HTTPS protocol support
240 - AVOptions API rewritten and documented
241 - most of CODEC_FLAG2_*, some CODEC_FLAG_* and many codec-specific fields in
242 AVCodecContext deprecated. Codec private options should be used instead.
243 - Properly working defaults in libx264 wrapper, support for native presets.
244 - Encrypted OMA files support
245 - Discworld II BMV decoding support
247 - OS X Video Decoder Acceleration (VDA) support
248 - CRI ADX audio format muxer and demuxer
249 - Playstation Portable PMP format demuxer
250 - PCM format support in OMA demuxer
252 - Dxtory capture format decoder
253 - v410 QuickTime uncompressed 4:4:4 10-bit encoder and decoder
255 - Simple segmenting muxer
262 - E-AC-3 audio encoder
263 - ac3enc: add channel coupling support
264 - floating-point sample format support for (E-)AC-3, DCA, AAC, Vorbis decoders
265 - H.264/MPEG frame-level multithreading
266 - av_metadata_* functions renamed to av_dict_* and moved to libavutil
267 - 4:4:4 H.264 decoding support
268 - 10-bit H.264 optimizations for x86
269 - bump libswscale for recently reported ABI break
274 - VP8 frame-level multithreading
275 - NEON optimizations for VP8
276 - removed a lot of deprecated API cruft
277 - FFT and IMDCT optimizations for AVX (Sandy Bridge) processors
279 - SMPTE 302M AES3 audio decoder
280 - ffmpeg no longer quits after the 'q' key is pressed; use 'ctrl+c' instead
281 - 9bit and 10bit per sample support in the H.264 decoder
286 - WebM support in Matroska de/muxer
287 - low overhead Ogg muxing
289 - VP8 de/encoding via libvpx
290 - Demuxer for On2's IVF format
291 - Pictor/PC Paint decoder
293 - libfaad2 wrapper removed
294 - DTS-ES extension (XCh) decoding support
296 - RTSP tunneling over HTTP
297 - RTP depacketization of SVQ3
298 - -strict inofficial replaced by -strict unofficial
299 - ffplay -exitonkeydown and -exitonmousedown options added
300 - native GSM / GSM MS decoder
301 - RTP depacketization of QDM2
302 - ANSI/ASCII art playback system
303 - Lego Mindstorms RSO de/muxer
304 - SubRip subtitle file muxer and demuxer
305 - Chinese AVS encoding via libxavs
306 - ffprobe -show_packets option added
307 - RTP packetization of Theora and Vorbis
308 - RTP depacketization of MP4A-LATM
309 - RTP packetization and depacketization of VP8
311 - Apple HTTP Live Streaming demuxer
314 - G.722 ADPCM audio encoder/decoder
317 - frei0r wrapper filter
318 - change crop filter syntax to width:height:x:y
319 - make the crop filter accept parametric expressions
320 - make ffprobe accept AVFormatContext options
323 - Demuxer for Leitch/Harris' VR native stream format (LXF)
324 - RTP depacketization of the X-QT QuickTime format
325 - SAP (Session Announcement Protocol, RFC 2974) muxer and demuxer
327 - ffmpeg -crop* options removed
328 - transpose filter added
329 - ffmpeg -force_key_frames option added
330 - demuxer for receiving raw rtp:// URLs without an SDP description
331 - single stream LATM/LOAS decoder
332 - setpts filter added
333 - Win64 support for optimized x86 assembly functions
334 - MJPEG/AVI1 to JPEG/JFIF bitstream filter
335 - ASS subtitle encoder and decoder
336 - IEC 61937 encapsulation for E-AC-3, TrueHD, DTS-HD (for HDMI passthrough)
337 - overlay filter added
338 - rename aspect filter to setdar, and pixelaspect to setsar
340 - Mobotix .mxg demuxer
341 - frei0r source added
342 - hqdn3d filter added
343 - RTP depacketization of QCELP
345 - gradfun filter added
347 - replace the ocv_smooth filter with a more generic ocv filter
348 - Windows Televison (WTV) demuxer
349 - FFmpeg metadata format muxer and demuxer
350 - SubRip (srt) subtitle decoder
351 - floating-point AC-3 encoder added
353 - ffmpeg -copytb option added
355 - Wing Commander IV movies decoder added
357 - Bink version 'b' audio and video decoder
358 - Bitmap Brothers JV playback system
359 - Apple HTTP Live Streaming protocol handler
360 - sndio support for playback and record
361 - Linux framebuffer input device added
362 - Chronomaster DFA decoder
363 - Mobotix MxPEG decoder
364 - AAC encoding via libvo-aacenc
365 - AMR-WB encoding via libvo-amrwbenc
367 - fieldorder video filter added
372 - PB-frame decoding for H.263
373 - deprecated vhook subsystem removed
374 - deprecated old scaler removed
376 - Alpha channel scaler
378 - RTP packetization of H.263
379 - RTP packetization of AMR
380 - RTP depacketization of Vorbis
381 - CorePNG decoding support
382 - Cook multichannel decoding support
383 - introduced avlanguage helpers in libavformat
384 - 8088flex TMV demuxer and decoder
385 - per-stream language-tags extraction in asfdec
386 - V210 decoder and encoder
387 - remaining GPL parts in AC-3 decoder converted to LGPL
389 - SoX native format muxer and demuxer
390 - AMR-NB decoding/encoding, AMR-WB decoding via OpenCORE libraries
392 - Electronic Arts Madcow decoder
393 - DivX (XSUB) subtitle encoder
394 - nonfree libamr support for AMR-NB/WB decoding/encoding removed
395 - experimental AAC encoder
396 - RTP depacketization of ASF and RTSP from WMS servers
397 - RTMP support in libavformat
398 - noX handling for OPT_BOOL X options
400 - IEC-61937 compatible Muxer
402 - Bluray (PGS) subtitle decoder
403 - LPCM support in MPEG-TS (HDMV RID as found on Blu-ray disks)
405 - Core Audio Format demuxer
407 - MD STUDIO audio demuxer
408 - RF64 support in WAV demuxer
409 - MPEG-4 Audio Lossless Coding (ALS) decoder
410 - -formats option split into -formats, -codecs, -bsfs, and -protocols
412 - CDG demuxer and decoder
414 - Auravision Aura 1 and 2 decoders
415 - Deluxe Paint Animation playback system
417 - Adobe Filmstrip muxer and demuxer
418 - RTP depacketization of H.263
419 - Bink demuxer and audio/video decoders
420 - enable symbol versioning by default for linkers that support it
421 - IFF PBM/ILBM bitmap decoder
424 - RTP depacketization of AMR
430 - Kega Game Video (KGV1) decoder
431 - VorbisComment writing for FLAC, Ogg FLAC and Ogg Speex files
432 - RTP depacketization of Theora
433 - HTTP Digest authentication
434 - RTMP/RTMPT/RTMPS/RTMPE/RTMPTE protocol support via librtmp
435 - Psygnosis YOP demuxer and video decoder
436 - spectral extension support in the E-AC-3 decoder
437 - unsharp video filter
438 - RTP hinting in the mov/3gp/mp4 muxer
439 - Dirac in Ogg demuxing
440 - seek to keyframes in Ogg
441 - 4:2:2 and 4:4:4 Theora decoding
442 - 35% faster VP3/Theora decoding
443 - faster AAC decoding
444 - faster H.264 decoding
445 - RealAudio 1.0 (14.4K) encoder
450 - DV50 AKA DVCPRO50 encoder, decoder, muxer and demuxer
451 - TechSmith Camtasia (TSCC) video decoder
452 - IBM Ultimotion (ULTI) video decoder
453 - Sierra Online audio file demuxer and decoder
454 - Apple QuickDraw (qdrw) video decoder
455 - Creative ADPCM audio decoder (16 bits as well as 8 bits schemes)
456 - Electronic Arts Multimedia (WVE/UV2/etc.) file demuxer
457 - Miro VideoXL (VIXL) video decoder
458 - H.261 video encoder
460 - Nullsoft Video (NSV) file demuxer
461 - Shorten audio decoder
463 - Apple Lossless Audio Codec (ALAC) decoder
464 - Winnov WNV1 video decoder
465 - Autodesk Animator Studio Codec (AASC) decoder
466 - Indeo 2 video decoder
467 - Fraps FPS1 video decoder
468 - Snow video encoder/decoder
469 - Sonic audio encoder/decoder
470 - Vorbis audio decoder
471 - Macromedia ADPCM decoder
472 - Duck TrueMotion 2 video decoder
473 - support for decoding FLX and DTA extensions in FLIC files
474 - H.264 custom quantization matrices support
475 - ffserver fixed, it should now be usable again
477 - Real Cooker audio decoder
478 - TrueSpeech audio decoder
479 - WMA2 audio decoder fixed, now all files should play correctly
480 - RealAudio 14.4 and 28.8 decoders fixed
482 - build system improvements
483 - tabs and trailing whitespace removed from the codebase
484 - CamStudio video decoder
485 - AIFF/AIFF-C audio format, encoding and decoding
486 - ADTS AAC file reading and writing
487 - Creative VOC file reading and writing
488 - American Laser Games multimedia (*.mm) playback system
489 - Zip Motion Blocks Video decoder
490 - improved Theora/VP3 decoder
491 - True Audio (TTA) decoder
492 - AVS demuxer and video decoder
494 - Smacker demuxer and decoder
495 - NuppelVideo/MythTV demuxer and RTjpeg decoder
497 - MPEG-2 intra VLC support
498 - MPEG-2 4:2:2 encoder
499 - Flash Screen Video decoder
501 - Chinese AVS decoder
504 - VC-1/WMV3/WMV9 video decoder
507 - VMware video decoder
510 - WavPack lossless audio decoder
511 - Targa (.TGA) picture decoder
512 - Vorbis audio encoder
513 - Delphine Software .cin demuxer/audio and video decoder
514 - Tiertex .seq demuxer/video decoder
516 - TIFF picture encoder and decoder
517 - GIF picture decoder
518 - Intel Music Coder decoder
519 - Zip Motion Blocks Video encoder
521 - Flash Screen Video encoder
522 - Theora encoding via libtheora
525 - GSM-MS encoder and decoder
527 - DXA demuxer and decoder
529 - Gamecube movie (.THP) playback system
530 - Blackfin optimizations
531 - Interplay C93 demuxer and video decoder
532 - Bethsoft VID demuxer and video decoder
535 - V.Flash PTX decoder
536 - RoQ muxer, RoQ audio encoder
537 - Renderware TXD demuxer and decoder
538 - extern C declarations for C++ removed from headers
539 - sws_flags command line option
543 - OS/2 support removed and restored again
546 - additional SPARC (VIS) optimizations
548 - slice-based parallel H.264 decoding
549 - Monkey's Audio demuxer and decoder
550 - AMV audio and video decoder
552 - H.264 PAFF decoding
553 - Nellymoser ASAO decoder
554 - Beam Software SIFF demuxer and decoder
555 - libvorbis Vorbis decoding removed in favor of native decoder
556 - IntraX8 (J-Frame) subdecoder for WMV2 and VC-1
557 - Ogg (Theora, Vorbis and FLAC) muxer
558 - The "device" muxers and demuxers are now in a new libavdevice library
559 - PC Paintbrush PCX decoder
560 - Sun Rasterfile decoder
561 - TechnoTrend PVA demuxer
562 - Linux Media Labs MPEG-4 (LMLM4) demuxer
563 - AVM2 (Flash 9) SWF muxer
564 - QT variant of IMA ADPCM encoder
566 - iPod/iPhone compatible mp4 muxer
568 - MSN TCP Webcam stream demuxer
569 - RL2 demuxer / decoder
572 - non-recursive Makefiles
574 - MAXIS EA XA (.xa) demuxer / decoder
578 - Electronic Arts CMV decoder
579 - Motion Pixels Video decoder
580 - Motion Pixels MVI demuxer
581 - removed animated GIF decoder/demuxer
582 - D-Cinema audio muxer
583 - Electronic Arts TGV decoder
584 - Apple Lossless Audio Codec (ALAC) encoder
586 - floating point PCM encoder/decoder
588 - DV100 AKA DVCPRO HD decoder and demuxer
589 - E-AC-3 support added to AC-3 decoder
590 - Nellymoser ASAO encoder
591 - ASS and SSA demuxer and muxer
592 - liba52 wrapper removed
593 - SVQ3 watermark decoding support
594 - Speex decoding via libspeex
595 - Electronic Arts TGQ decoder
597 - QCELP / PureVoice decoder
599 - hybrid WavPack support
600 - R3D REDCODE demuxer
601 - ALSA support for playback and record
602 - Electronic Arts TQI decoder
603 - OpenJPEG based JPEG 2000 decoder
604 - NC (NC4600) camera file demuxer
605 - Gopher client support
607 - generic metadata API
612 - DV encoder, DV muxer
613 - Microsoft RLE video decoder
614 - Microsoft Video-1 decoder
615 - Apple Animation (RLE) decoder
616 - Apple Graphics (SMC) decoder
617 - Apple Video (RPZA) decoder
619 - Sega FILM (CPK) file demuxer
620 - Westwood multimedia support (VQA & AUD files)
621 - Id Quake II CIN playback support
623 - FLIC playback support
624 - RealVideo 2.0 (RV20) decoder
625 - Duck TrueMotion v1 (DUCK) video decoder
626 - Sierra VMD demuxer and video decoder
627 - MSZH and ZLIB decoder support
631 - rate distortion optimal cbp support
632 - rate distorted optimal ac prediction for MPEG-4
633 - rate distorted optimal lambda->qp support
634 - AAC encoding with libfaac
635 - Sunplus JPEG codec (SP5X) support
636 - use Lagrange multipler instead of QP for ratecontrol
637 - Theora/VP3 decoding support
638 - XA and ADX ADPCM codecs
639 - export MPEG-2 active display area / pan scan
640 - Add support for configuring with IBM XLC
641 - floating point AAN DCT
642 - initial support for zygo video (not complete)
644 - new audio/video parser API
646 - av_read_frame() and av_seek_frame() support
647 - missing last frame fixes
648 - seek by mouse in ffplay
649 - noise reduction of DCT coefficients
650 - H.263 OBMC & 4MV support
651 - H.263 alternative inter vlc support
653 - H.263 slice structured mode
654 - interlaced DCT support for MPEG-2 encoding
655 - stuffing to stay above min_bitrate
656 - MB type & QP visualization
657 - frame stepping for ffplay
658 - interlaced motion estimation
659 - alternate scantable support
660 - SVCD scan offset support
663 - quantizer noise shaping
664 - G.726 ADPCM audio codec
666 - multithreaded/SMP motion estimation
667 - multithreaded/SMP encoding for MPEG-1/MPEG-2/MPEG-4/H.263
668 - multithreaded/SMP decoding for MPEG-2
670 - Metrowerks CodeWarrior suppport
671 - H.263+ custom pcf support
672 - nicer output for 'ffmpeg -formats'
674 - SGI image format, encoding and decoding
675 - H.264 loop filter support
676 - H.264 CABAC support
677 - nicer looking arrows for the motion vector visualization
678 - improved VCD support
679 - audio timestamp drift compensation
680 - MPEG-2 YUV 422/444 support
681 - polyphase kaiser windowed sinc and blackman nuttall windowed sinc audio resample
682 - better image scaling
684 - correctly interleave packets during encoding
685 - VIS optimized motion compensation
686 - intra_dc_precision>0 encoding support
687 - support reuse of motion vectors/MB types/field select values of the source video
688 - more accurate deblock filter
690 - many optimizations and bugfixes
691 - FunCom ISS audio file demuxer and according ADPCM decoding
696 - MPEG-2 video encoding (Michael)
697 - Id RoQ playback subsystem (Mike Melanson and Tim Ferguson)
698 - Wing Commander III Movie (.mve) file playback subsystem (Mike Melanson
700 - Xan DPCM audio decoder (Mario Brito)
701 - Interplay MVE playback subsystem (Mike Melanson)
702 - Duck DK3 and DK4 ADPCM audio decoders (Mike Melanson)
707 - RealAudio 1.0 (14_4) and 2.0 (28_8) native decoders. Author unknown, code from mplayerhq
708 (originally from public domain player for Amiga at http://www.honeypot.net/audio)
709 - current version now also compiles with older GCC (Fabrice)
710 - 4X multimedia playback system including 4xm file demuxer (Mike
711 Melanson), and 4X video and audio codecs (Michael)
712 - Creative YUV (CYUV) decoder (Mike Melanson)
713 - FFV1 codec (our very simple lossless intra only codec, compresses much better
714 than HuffYUV) (Michael)
715 - ASV1 (Asus), H.264, Intel indeo3 codecs have been added (various)
716 - tiny PNG encoder and decoder, tiny GIF decoder, PAM decoder (PPM with
717 alpha support), JPEG YUV colorspace support. (Fabrice Bellard)
718 - ffplay has been replaced with a newer version which uses SDL (optionally)
719 for multiplatform support (Fabrice)
720 - Sorenson Version 3 codec (SVQ3) support has been added (decoding only) - donated
722 - AMR format has been added (Johannes Carlsson)
723 - 3GP support has been added (Johannes Carlsson)
724 - VP3 codec has been added (Mike Melanson)
725 - more MPEG-1/2 fixes
726 - better multiplatform support, MS Visual Studio fixes (various)
727 - AltiVec optimizations (Magnus Damn and others)
728 - SH4 processor support has been added (BERO)
729 - new public interfaces (avcodec_get_pix_fmt) (Roman Shaposhnick)
730 - VOB streaming support (Brian Foley)
731 - better MP3 autodetection (Andriy Rysin)
732 - qpel encoding (Michael)
733 - 4mv+b frames encoding finally fixed (Michael)
734 - chroma ME (Michael)
735 - 5 comparison functions for ME (Michael)
736 - B-frame encoding speedup (Michael)
737 - WMV2 codec (unfinished - Michael)
738 - user specified diamond size for EPZS (Michael)
739 - Playstation STR playback subsystem, still experimental (Mike and Michael)
740 - ASV2 codec (Michael)
741 - CLJR decoder (Alex)
743 .. And lots more new enhancements and fixes.
748 - completely new integer only MPEG audio layer 1/2/3 decoder rewritten
750 - Recoded DCT and motion vector search with gcc (no longer depends on nasm)
751 - fix quantization bug in AC3 encoder
752 - added PCM codecs and format. Corrected WAV/AVI/ASF PCM issues
753 - added prototype ffplay program
754 - added GOB header parsing on H.263/H.263+ decoder (Juanjo)
755 - bug fix on MCBPC tables of H.263 (Juanjo)
756 - bug fix on DC coefficients of H.263 (Juanjo)
757 - added Advanced Prediction Mode on H.263/H.263+ decoder (Juanjo)
758 - now we can decode H.263 streams found in QuickTime files (Juanjo)
759 - now we can decode H.263 streams found in VIVO v1 files(Juanjo)
760 - preliminary RTP "friendly" mode for H.263/H.263+ coding. (Juanjo)
761 - added GOB header for H.263/H.263+ coding on RTP mode (Juanjo)
762 - now H.263 picture size is returned on the first decoded frame (Juanjo)
763 - added first regression tests
764 - added MPEG-2 TS demuxer
765 - new demux API for libav
766 - more accurate and faster IDCT (Michael)
767 - faster and entropy-controlled motion search (Michael)
768 - two pass video encoding (Michael)
769 - new video rate control (Michael)
770 - added MSMPEG4V1, MSMPEGV2 and WMV1 support (Michael)
771 - great performance improvement of video encoders and decoders (Michael)
772 - new and faster bit readers and vlc parsers (Michael)
773 - high quality encoding mode: tries all macroblock/VLC types (Michael)
774 - added DV video decoder
775 - preliminary RTP/RTSP support in ffserver and libavformat
776 - H.263+ AIC decoding/encoding support (Juanjo)
777 - VCD MPEG-PS mode (Juanjo)
778 - PSNR stuff (Juanjo)
779 - simple stats output (Juanjo)
780 - 16-bit and 15-bit RGB/BGR/GBR support (Bisqwit)
785 - some header fixes (Zdenek Kabelac <kabi at informatics.muni.cz>)
786 - many MMX optimizations (Nick Kurshev <nickols_k at mail.ru>)
787 - added configure system (actually a small shell script)
788 - added MPEG audio layer 1/2/3 decoding using LGPL'ed mpglib by
789 Michael Hipp (temporary solution - waiting for integer only
791 - fixed VIDIOCSYNC interrupt
792 - added Intel H.263 decoding support ('I263' AVI fourCC)
793 - added Real Video 1.0 decoding (needs further testing)
794 - simplified image formats again. Added PGM format (=grey
795 pgm). Renamed old PGM to PGMYUV.
796 - fixed msmpeg4 slice issues (tell me if you still find problems)
797 - fixed OpenDivX bugs with newer versions (added VOL header decoding)
798 - added support for MPlayer interface
799 - added macroblock skip optimization
800 - added MJPEG decoder
801 - added mmx/mmxext IDCT from libmpeg2
802 - added pgmyuvpipe, ppm, and ppm_pipe formats (original patch by Celer
803 <celer at shell.scrypt.net>)
804 - added pixel format conversion layer (e.g. for MJPEG or PPM)
805 - added deinterlacing option
807 - MPEG-4 vol header fixes (Jonathan Marsden <snmjbm at pacbell.net>)
808 - ARM optimizations (Lionel Ulmer <lionel.ulmer at free.fr>).
809 - Windows porting of file converter
810 - added MJPEG raw format (input/ouput)
811 - added JPEG image format support (input/output)
816 - fixed some std header definitions (Bjorn Lindgren
817 <bjorn.e.lindgren at telia.com>).
818 - added MPEG demuxer (MPEG-1 and 2 compatible).
820 - added prototype RM demuxer
821 - added AC3 decoding (done with libac3 by Aaron Holtzman)
822 - added decoding codec parameter guessing (.e.g. for MPEG, because the
823 header does not include them)
824 - fixed header generation in MPEG-1, AVI and ASF muxer: wmplayer can now
825 play them (only tested video)
826 - fixed H.263 white bug
827 - fixed phase rounding in img resample filter
828 - add MMX code for polyphase img resample filter
829 - added CPU autodetection
830 - added generic title/author/copyright/comment string handling (ASF and RM
832 - added SWF demux to extract MP3 track (not usable yet because no MP3
834 - added fractional frame rate support
835 - codecs are no longer searched by read_header() (should fix ffserver
841 - BGR24 patch (initial patch by Jeroen Vreeken <pe1rxq at amsat.org>)
842 - fixed raw yuv output
843 - added motion rounding support in MPEG-4
844 - fixed motion bug rounding in MSMPEG4
845 - added B-frame handling in video core
846 - added full MPEG-1 decoding support
847 - added partial (frame only) MPEG-2 support
848 - changed the FOURCC code for H.263 to "U263" to be able to see the
849 +AVI/H.263 file with the UB Video H.263+ decoder. MPlayer works with
850 this +codec ;) (JuanJo).
851 - Halfpel motion estimation after MB type selection (JuanJo)
852 - added pgm and .Y.U.V output format
853 - suppressed 'img:' protocol. Simply use: /tmp/test%d.[pgm|Y] as input or
855 - added pgmpipe I/O format (original patch from Martin Aumueller
856 <lists at reserv.at>, but changed completely since we use a format
857 instead of a protocol)
862 - added H.263/MPEG-4/MSMPEG4 decoding support. MPEG-4 decoding support
863 (for OpenDivX) is almost complete: 8x8 MVs and rounding are
864 missing. MSMPEG4 support is complete.
865 - added prototype MPEG-1 decoder. Only I- and P-frames handled yet (it
866 can decode ffmpeg MPEGs :-)).
867 - added libavcodec API documentation (see apiexample.c).
868 - fixed image polyphase bug (the bottom of some images could be
870 - added support for non clipped motion vectors (decoding only)
871 and image sizes non-multiple of 16
872 - added support for AC prediction (decoding only)
873 - added file overwrite confirmation (can be disabled with -y)
874 - added custom size picture to H.263 using H.263+ (Juanjo)
879 - added MSMPEG4 (aka DivX) compatible encoder. Changed default codec
880 of AVI and ASF to DIV3.
881 - added -me option to set motion estimation method
882 (default=log). suppressed redundant -hq option.
883 - added options -acodec and -vcodec to force a given codec (useful for
886 - improved dct_quantize speed
887 - factorized some motion estimation code
892 - removing grab code from ffserver and moved it to ffmpeg. Added
893 multistream support to ffmpeg.
894 - added timeshifting support for live feeds (option ?date=xxx in the
896 - added high quality image resize code with polyphase filter (need
897 mmx/see optimization). Enable multiple image size support in ffserver.
898 - added multi live feed support in ffserver
899 - suppressed master feature from ffserver (it should be done with an
900 external program which opens the .ffm url and writes it to another
902 - added preliminary support for video stream parsing (WAV and AVI half
903 done). Added proper support for audio/video file conversion in
905 - added preliminary support for video file sending from ffserver
906 - redesigning I/O subsystem: now using URL based input and output
908 - added WAV format support
909 - added "tty user interface" to ffmpeg to stop grabbing gracefully
910 - added MMX/SSE optimizations to SAD (Sums of Absolutes Differences)
911 (Juan J. Sierralta P. a.k.a. "Juanjo" <juanjo at atmlab.utfsm.cl>)
912 - added MMX DCT from mpeg2_movie 1.5 (Juanjo)
913 - added new motion estimation algorithms, log and phods (Juanjo)
914 - changed directories: libav for format handling, libavcodec for
920 - added stereo in MPEG audio encoder
925 - added 'high quality' mode which use motion vectors. It can be used in
926 real time at low resolution.
927 - fixed rounding problems which caused quality problems at high
928 bitrates and large GOP size
931 version 0.3.2: small fixes
937 version 0.3.1: added avi/divx support
940 - added MPEG-4 codec compatible with OpenDivX. It is based on the H.263 codec
941 - added sound for flash format (not tested)
944 version 0.3: initial public release