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)
30 - av_basename and av_dirname
31 - adobe and limelight publisher authentication in RTMP
32 - VDPAU hardware acceleration through normal hwaccel
37 - ashowinfo audio filter
38 - 24-bit FLAC encoding
40 - deprecated the avconv -vol option. the volume filter is to be used instead.
41 - multi-channel ALAC encoding up to 7.1
42 - TAK demuxer, parser, and decoder
43 - adaptive frame-level multithreading for H.264
47 - metadata (INFO tag) support in WAV muxer
48 - support for building DLLs using MSVC
49 - remove avserver daemon mode
50 - support building on the Plan 9 operating system
51 - ffv1: support version 1.3
56 - XWD encoder and decoder
57 - Support for fragmentation in the mov/mp4 muxer
58 - ISMV (Smooth Streaming) muxer
59 - CDXL demuxer and decoder
60 - Apple ProRes encoder
61 - Sun Rasterfile Encoder
63 - ID3v2 attached pictures reading and writing
64 - WMA Lossless decoder
66 - RealAudio Lossless decoder
68 - drop support for avconv without libavfilter
69 - add libavresample audio conversion library
70 - audio filters support in libavfilter and avconv
74 - avprobe output is now standard INI or JSON. The old format can still
77 - channelsplit audio filter
78 - RTMPT protocol support
79 - iLBC encoding/decoding via libilbc
80 - Microsoft Screen 1 decoder
82 - audio channel mapping filter
83 - Microsoft ATC Screen decoder
85 - TechSmith Screen Codec 2 decoder
86 - AAC encoding via libfdk-aac
87 - Microsoft Expression Encoder Screen decoder
88 - RTMPS protocol support
89 - RTMPTS protocol support
90 - JPEG 2000 encoding support through OpenJPEG
91 - G.723.1 demuxer and decoder
92 - RTMPE protocol support
93 - RTMPTE protocol support
94 - Canopus Lossless Codec decoder
95 - avconv -shortest option is now per-output file,
96 -pass and -passlogfile are now per-output stream
98 - Microsoft Screen 2 decoder
99 - RTP depacketization of JPEG
100 - Smooth Streaming live segmenter muxer
101 - RTP packetization of JPEG
102 - Opus decoder and encoder using libopus
103 - remove -same_quant, it hasn't worked for years
104 - support for building with MSVC
115 - Automatic thread count based on detection number of (available) CPU cores
116 - Deprecate libpostproc. If desired, the switch --enable-postproc will
117 enable it but it may be removed in a later Libav release.
118 - rv34: frame-level multi-threading
119 - optimized iMDCT transform on x86 using SSE for for mpegaudiodec
125 - Flash Screen Video 2 decoder
126 - ffplay/ffprobe/ffserver renamed to avplay/avprobe/avserver
127 - ffmpeg deprecated, added avconv, which is almost the same for now, except
128 for a few incompatible changes in the options, which will hopefully make them
129 easier to use. The changes are:
130 * The options placement is now strictly enforced! While in theory the
131 options for ffmpeg should be given in [input options] -i INPUT [output
132 options] OUTPUT order, in practice it was possible to give output options
133 before the -i and it mostly worked. Except when it didn't - the behavior was
134 a bit inconsistent. In avconv, it is not possible to mix input and output
135 options. All non-global options are reset after an input or output filename.
136 * All per-file options are now truly per-file - they apply only to the next
137 input or output file and specifying different values for different files
138 will now work properly (notably -ss and -t options).
139 * All per-stream options are now truly per-stream - it is possible to
140 specify which stream(s) should a given option apply to. See the Stream
141 specifiers section in the avconv manual for details.
142 * In ffmpeg some options (like -newvideo/-newaudio/...) are irregular in the
143 sense that they're specified after the output filename instead of before,
144 like all other options. In avconv this irregularity is removed, all options
145 apply to the next input or output file.
146 * -newvideo/-newaudio/-newsubtitle options were removed. Not only were they
147 irregular and highly confusing, they were also redundant. In avconv the -map
148 option will create new streams in the output file and map input streams to
149 them. E.g. avconv -i INPUT -map 0 OUTPUT will create an output stream for
150 each stream in the first input file.
151 * The -map option now has slightly different and more powerful syntax:
152 + Colons (':') are used to separate file index/stream type/stream index
153 instead of dots. Comma (',') is used to separate the sync stream instead
154 of colon.. This is done for consistency with other options.
155 + It's possible to specify stream type. E.g. -map 0:a:2 creates an
156 output stream from the third input audio stream.
157 + Omitting the stream index now maps all the streams of the given type,
158 not just the first. E.g. -map 0:s creates output streams for all the
159 subtitle streams in the first input file.
160 + Since -map can now match multiple streams, negative mappings were
161 introduced. Negative mappings disable some streams from an already
162 defined map. E.g. '-map 0 -map -0:a:1' means 'create output streams for
163 all the stream in the first input file, except for the second audio
165 * There is a new option -c (or -codec) for choosing the decoder/encoder to
166 use, which allows to precisely specify target stream(s) consistently with
167 other options. E.g. -c:v lib264 sets the codec for all video streams, -c:a:0
168 libvorbis sets the codec for the first audio stream and -c copy copies all
169 the streams without reencoding. Old -vcodec/-acodec/-scodec options are now
171 * It is now possible to precisely specify which stream should an AVOption
172 apply to. E.g. -b:v:0 2M sets the bitrate for the first video stream, while
173 -b:a 128k sets the bitrate for all audio streams. Note that the old -ab 128k
174 syntax is deprecated and will stop working soon.
175 * -map_chapters now takes only an input file index and applies to the next
176 output file. This is consistent with how all the other options work.
177 * -map_metadata now takes only an input metadata specifier and applies to
178 the next output file. Output metadata specifier is now part of the option
179 name, similarly to the AVOptions/map/codec feature above.
180 * -metadata can now be used to set metadata on streams and chapters, e.g.
181 -metadata:s:1 language=eng sets the language of the first stream to 'eng'.
182 This made -vlang/-alang/-slang options redundant, so they were removed.
183 * -qscale option now uses stream specifiers and applies to all streams, not
184 just video. I.e. plain -qscale number would now apply to all streams. To get
185 the old behavior, use -qscale:v. Also there is now a shortcut -q for -qscale
186 and -aq is now an alias for -q:a.
187 * -vbsf/-absf/-sbsf options were removed and replaced by a -bsf option which
188 uses stream specifiers. Use -bsf:v/a/s instead of the old options.
189 * -itsscale option now uses stream specifiers, so its argument is only the
191 * -intra option was removed, use -g 0 for the same effect.
192 * -psnr option was removed, use -flags +psnr for the same effect.
193 * -vf option is now an alias to the new -filter option, which uses stream specifiers.
194 * -vframes/-aframes/-dframes options are now aliases to the new -frames option.
195 * -vtag/-atag/-stag options are now aliases to the new -tag option.
197 - Windows Media Image decoder
201 - libcdio-paranoia input device for audio CD grabbing
203 - Apple ProRes decoder
204 - CELT in Ogg demuxing
205 - VC-1 interlaced decoding
206 - lut, lutrgb, and lutyuv filters
209 - Speex encoding via libspeex
210 - 4:2:2 H.264 decoding support
211 - 4:2:2 and 4:4:4 H.264 encoding with libx264
212 - Pulseaudio input device
213 - replacement Indeo 3 decoder
214 - TLS/SSL and HTTPS protocol support
215 - AVOptions API rewritten and documented
216 - most of CODEC_FLAG2_*, some CODEC_FLAG_* and many codec-specific fields in
217 AVCodecContext deprecated. Codec private options should be used instead.
218 - Properly working defaults in libx264 wrapper, support for native presets.
219 - Encrypted OMA files support
220 - Discworld II BMV decoding support
222 - OS X Video Decoder Acceleration (VDA) support
223 - CRI ADX audio format muxer and demuxer
224 - Playstation Portable PMP format demuxer
225 - PCM format support in OMA demuxer
227 - Dxtory capture format decoder
228 - v410 QuickTime uncompressed 4:4:4 10-bit encoder and decoder
230 - Simple segmenting muxer
237 - E-AC-3 audio encoder
238 - ac3enc: add channel coupling support
239 - floating-point sample format support for (E-)AC-3, DCA, AAC, Vorbis decoders
240 - H.264/MPEG frame-level multithreading
241 - av_metadata_* functions renamed to av_dict_* and moved to libavutil
242 - 4:4:4 H.264 decoding support
243 - 10-bit H.264 optimizations for x86
244 - bump libswscale for recently reported ABI break
249 - VP8 frame-level multithreading
250 - NEON optimizations for VP8
251 - removed a lot of deprecated API cruft
252 - FFT and IMDCT optimizations for AVX (Sandy Bridge) processors
254 - SMPTE 302M AES3 audio decoder
255 - ffmpeg no longer quits after the 'q' key is pressed; use 'ctrl+c' instead
256 - 9bit and 10bit per sample support in the H.264 decoder
261 - WebM support in Matroska de/muxer
262 - low overhead Ogg muxing
264 - VP8 de/encoding via libvpx
265 - Demuxer for On2's IVF format
266 - Pictor/PC Paint decoder
268 - libfaad2 wrapper removed
269 - DTS-ES extension (XCh) decoding support
271 - RTSP tunneling over HTTP
272 - RTP depacketization of SVQ3
273 - -strict inofficial replaced by -strict unofficial
274 - ffplay -exitonkeydown and -exitonmousedown options added
275 - native GSM / GSM MS decoder
276 - RTP depacketization of QDM2
277 - ANSI/ASCII art playback system
278 - Lego Mindstorms RSO de/muxer
279 - SubRip subtitle file muxer and demuxer
280 - Chinese AVS encoding via libxavs
281 - ffprobe -show_packets option added
282 - RTP packetization of Theora and Vorbis
283 - RTP depacketization of MP4A-LATM
284 - RTP packetization and depacketization of VP8
286 - Apple HTTP Live Streaming demuxer
289 - G.722 ADPCM audio encoder/decoder
292 - frei0r wrapper filter
293 - change crop filter syntax to width:height:x:y
294 - make the crop filter accept parametric expressions
295 - make ffprobe accept AVFormatContext options
298 - Demuxer for Leitch/Harris' VR native stream format (LXF)
299 - RTP depacketization of the X-QT QuickTime format
300 - SAP (Session Announcement Protocol, RFC 2974) muxer and demuxer
302 - ffmpeg -crop* options removed
303 - transpose filter added
304 - ffmpeg -force_key_frames option added
305 - demuxer for receiving raw rtp:// URLs without an SDP description
306 - single stream LATM/LOAS decoder
307 - setpts filter added
308 - Win64 support for optimized x86 assembly functions
309 - MJPEG/AVI1 to JPEG/JFIF bitstream filter
310 - ASS subtitle encoder and decoder
311 - IEC 61937 encapsulation for E-AC-3, TrueHD, DTS-HD (for HDMI passthrough)
312 - overlay filter added
313 - rename aspect filter to setdar, and pixelaspect to setsar
315 - Mobotix .mxg demuxer
316 - frei0r source added
317 - hqdn3d filter added
318 - RTP depacketization of QCELP
320 - gradfun filter added
322 - replace the ocv_smooth filter with a more generic ocv filter
323 - Windows Televison (WTV) demuxer
324 - FFmpeg metadata format muxer and demuxer
325 - SubRip (srt) subtitle decoder
326 - floating-point AC-3 encoder added
328 - ffmpeg -copytb option added
330 - Wing Commander IV movies decoder added
332 - Bink version 'b' audio and video decoder
333 - Bitmap Brothers JV playback system
334 - Apple HTTP Live Streaming protocol handler
335 - sndio support for playback and record
336 - Linux framebuffer input device added
337 - Chronomaster DFA decoder
338 - Mobotix MxPEG decoder
339 - AAC encoding via libvo-aacenc
340 - AMR-WB encoding via libvo-amrwbenc
342 - fieldorder video filter added
347 - PB-frame decoding for H.263
348 - deprecated vhook subsystem removed
349 - deprecated old scaler removed
351 - Alpha channel scaler
353 - RTP packetization of H.263
354 - RTP packetization of AMR
355 - RTP depacketization of Vorbis
356 - CorePNG decoding support
357 - Cook multichannel decoding support
358 - introduced avlanguage helpers in libavformat
359 - 8088flex TMV demuxer and decoder
360 - per-stream language-tags extraction in asfdec
361 - V210 decoder and encoder
362 - remaining GPL parts in AC-3 decoder converted to LGPL
364 - SoX native format muxer and demuxer
365 - AMR-NB decoding/encoding, AMR-WB decoding via OpenCORE libraries
367 - Electronic Arts Madcow decoder
368 - DivX (XSUB) subtitle encoder
369 - nonfree libamr support for AMR-NB/WB decoding/encoding removed
370 - experimental AAC encoder
371 - RTP depacketization of ASF and RTSP from WMS servers
372 - RTMP support in libavformat
373 - noX handling for OPT_BOOL X options
375 - IEC-61937 compatible Muxer
377 - Bluray (PGS) subtitle decoder
378 - LPCM support in MPEG-TS (HDMV RID as found on Blu-ray disks)
380 - Core Audio Format demuxer
382 - MD STUDIO audio demuxer
383 - RF64 support in WAV demuxer
384 - MPEG-4 Audio Lossless Coding (ALS) decoder
385 - -formats option split into -formats, -codecs, -bsfs, and -protocols
387 - CDG demuxer and decoder
389 - Auravision Aura 1 and 2 decoders
390 - Deluxe Paint Animation playback system
392 - Adobe Filmstrip muxer and demuxer
393 - RTP depacketization of H.263
394 - Bink demuxer and audio/video decoders
395 - enable symbol versioning by default for linkers that support it
396 - IFF PBM/ILBM bitmap decoder
399 - RTP depacketization of AMR
405 - Kega Game Video (KGV1) decoder
406 - VorbisComment writing for FLAC, Ogg FLAC and Ogg Speex files
407 - RTP depacketization of Theora
408 - HTTP Digest authentication
409 - RTMP/RTMPT/RTMPS/RTMPE/RTMPTE protocol support via librtmp
410 - Psygnosis YOP demuxer and video decoder
411 - spectral extension support in the E-AC-3 decoder
412 - unsharp video filter
413 - RTP hinting in the mov/3gp/mp4 muxer
414 - Dirac in Ogg demuxing
415 - seek to keyframes in Ogg
416 - 4:2:2 and 4:4:4 Theora decoding
417 - 35% faster VP3/Theora decoding
418 - faster AAC decoding
419 - faster H.264 decoding
420 - RealAudio 1.0 (14.4K) encoder
425 - DV50 AKA DVCPRO50 encoder, decoder, muxer and demuxer
426 - TechSmith Camtasia (TSCC) video decoder
427 - IBM Ultimotion (ULTI) video decoder
428 - Sierra Online audio file demuxer and decoder
429 - Apple QuickDraw (qdrw) video decoder
430 - Creative ADPCM audio decoder (16 bits as well as 8 bits schemes)
431 - Electronic Arts Multimedia (WVE/UV2/etc.) file demuxer
432 - Miro VideoXL (VIXL) video decoder
433 - H.261 video encoder
435 - Nullsoft Video (NSV) file demuxer
436 - Shorten audio decoder
438 - Apple Lossless Audio Codec (ALAC) decoder
439 - Winnov WNV1 video decoder
440 - Autodesk Animator Studio Codec (AASC) decoder
441 - Indeo 2 video decoder
442 - Fraps FPS1 video decoder
443 - Snow video encoder/decoder
444 - Sonic audio encoder/decoder
445 - Vorbis audio decoder
446 - Macromedia ADPCM decoder
447 - Duck TrueMotion 2 video decoder
448 - support for decoding FLX and DTA extensions in FLIC files
449 - H.264 custom quantization matrices support
450 - ffserver fixed, it should now be usable again
452 - Real Cooker audio decoder
453 - TrueSpeech audio decoder
454 - WMA2 audio decoder fixed, now all files should play correctly
455 - RealAudio 14.4 and 28.8 decoders fixed
457 - build system improvements
458 - tabs and trailing whitespace removed from the codebase
459 - CamStudio video decoder
460 - AIFF/AIFF-C audio format, encoding and decoding
461 - ADTS AAC file reading and writing
462 - Creative VOC file reading and writing
463 - American Laser Games multimedia (*.mm) playback system
464 - Zip Motion Blocks Video decoder
465 - improved Theora/VP3 decoder
466 - True Audio (TTA) decoder
467 - AVS demuxer and video decoder
469 - Smacker demuxer and decoder
470 - NuppelVideo/MythTV demuxer and RTjpeg decoder
472 - MPEG-2 intra VLC support
473 - MPEG-2 4:2:2 encoder
474 - Flash Screen Video decoder
476 - Chinese AVS decoder
479 - VC-1/WMV3/WMV9 video decoder
482 - VMware video decoder
485 - WavPack lossless audio decoder
486 - Targa (.TGA) picture decoder
487 - Vorbis audio encoder
488 - Delphine Software .cin demuxer/audio and video decoder
489 - Tiertex .seq demuxer/video decoder
491 - TIFF picture encoder and decoder
492 - GIF picture decoder
493 - Intel Music Coder decoder
494 - Zip Motion Blocks Video encoder
496 - Flash Screen Video encoder
497 - Theora encoding via libtheora
500 - GSM-MS encoder and decoder
502 - DXA demuxer and decoder
504 - Gamecube movie (.THP) playback system
505 - Blackfin optimizations
506 - Interplay C93 demuxer and video decoder
507 - Bethsoft VID demuxer and video decoder
510 - V.Flash PTX decoder
511 - RoQ muxer, RoQ audio encoder
512 - Renderware TXD demuxer and decoder
513 - extern C declarations for C++ removed from headers
514 - sws_flags command line option
518 - OS/2 support removed and restored again
521 - additional SPARC (VIS) optimizations
523 - slice-based parallel H.264 decoding
524 - Monkey's Audio demuxer and decoder
525 - AMV audio and video decoder
527 - H.264 PAFF decoding
528 - Nellymoser ASAO decoder
529 - Beam Software SIFF demuxer and decoder
530 - libvorbis Vorbis decoding removed in favor of native decoder
531 - IntraX8 (J-Frame) subdecoder for WMV2 and VC-1
532 - Ogg (Theora, Vorbis and FLAC) muxer
533 - The "device" muxers and demuxers are now in a new libavdevice library
534 - PC Paintbrush PCX decoder
535 - Sun Rasterfile decoder
536 - TechnoTrend PVA demuxer
537 - Linux Media Labs MPEG-4 (LMLM4) demuxer
538 - AVM2 (Flash 9) SWF muxer
539 - QT variant of IMA ADPCM encoder
541 - iPod/iPhone compatible mp4 muxer
543 - MSN TCP Webcam stream demuxer
544 - RL2 demuxer / decoder
547 - non-recursive Makefiles
549 - MAXIS EA XA (.xa) demuxer / decoder
553 - Electronic Arts CMV decoder
554 - Motion Pixels Video decoder
555 - Motion Pixels MVI demuxer
556 - removed animated GIF decoder/demuxer
557 - D-Cinema audio muxer
558 - Electronic Arts TGV decoder
559 - Apple Lossless Audio Codec (ALAC) encoder
561 - floating point PCM encoder/decoder
563 - DV100 AKA DVCPRO HD decoder and demuxer
564 - E-AC-3 support added to AC-3 decoder
565 - Nellymoser ASAO encoder
566 - ASS and SSA demuxer and muxer
567 - liba52 wrapper removed
568 - SVQ3 watermark decoding support
569 - Speex decoding via libspeex
570 - Electronic Arts TGQ decoder
572 - QCELP / PureVoice decoder
574 - hybrid WavPack support
575 - R3D REDCODE demuxer
576 - ALSA support for playback and record
577 - Electronic Arts TQI decoder
578 - OpenJPEG based JPEG 2000 decoder
579 - NC (NC4600) camera file demuxer
580 - Gopher client support
582 - generic metadata API
587 - DV encoder, DV muxer
588 - Microsoft RLE video decoder
589 - Microsoft Video-1 decoder
590 - Apple Animation (RLE) decoder
591 - Apple Graphics (SMC) decoder
592 - Apple Video (RPZA) decoder
594 - Sega FILM (CPK) file demuxer
595 - Westwood multimedia support (VQA & AUD files)
596 - Id Quake II CIN playback support
598 - FLIC playback support
599 - RealVideo 2.0 (RV20) decoder
600 - Duck TrueMotion v1 (DUCK) video decoder
601 - Sierra VMD demuxer and video decoder
602 - MSZH and ZLIB decoder support
606 - rate distortion optimal cbp support
607 - rate distorted optimal ac prediction for MPEG-4
608 - rate distorted optimal lambda->qp support
609 - AAC encoding with libfaac
610 - Sunplus JPEG codec (SP5X) support
611 - use Lagrange multipler instead of QP for ratecontrol
612 - Theora/VP3 decoding support
613 - XA and ADX ADPCM codecs
614 - export MPEG-2 active display area / pan scan
615 - Add support for configuring with IBM XLC
616 - floating point AAN DCT
617 - initial support for zygo video (not complete)
619 - new audio/video parser API
621 - av_read_frame() and av_seek_frame() support
622 - missing last frame fixes
623 - seek by mouse in ffplay
624 - noise reduction of DCT coefficients
625 - H.263 OBMC & 4MV support
626 - H.263 alternative inter vlc support
628 - H.263 slice structured mode
629 - interlaced DCT support for MPEG-2 encoding
630 - stuffing to stay above min_bitrate
631 - MB type & QP visualization
632 - frame stepping for ffplay
633 - interlaced motion estimation
634 - alternate scantable support
635 - SVCD scan offset support
638 - quantizer noise shaping
639 - G.726 ADPCM audio codec
641 - multithreaded/SMP motion estimation
642 - multithreaded/SMP encoding for MPEG-1/MPEG-2/MPEG-4/H.263
643 - multithreaded/SMP decoding for MPEG-2
645 - Metrowerks CodeWarrior suppport
646 - H.263+ custom pcf support
647 - nicer output for 'ffmpeg -formats'
649 - SGI image format, encoding and decoding
650 - H.264 loop filter support
651 - H.264 CABAC support
652 - nicer looking arrows for the motion vector visualization
653 - improved VCD support
654 - audio timestamp drift compensation
655 - MPEG-2 YUV 422/444 support
656 - polyphase kaiser windowed sinc and blackman nuttall windowed sinc audio resample
657 - better image scaling
659 - correctly interleave packets during encoding
660 - VIS optimized motion compensation
661 - intra_dc_precision>0 encoding support
662 - support reuse of motion vectors/MB types/field select values of the source video
663 - more accurate deblock filter
665 - many optimizations and bugfixes
666 - FunCom ISS audio file demuxer and according ADPCM decoding
671 - MPEG-2 video encoding (Michael)
672 - Id RoQ playback subsystem (Mike Melanson and Tim Ferguson)
673 - Wing Commander III Movie (.mve) file playback subsystem (Mike Melanson
675 - Xan DPCM audio decoder (Mario Brito)
676 - Interplay MVE playback subsystem (Mike Melanson)
677 - Duck DK3 and DK4 ADPCM audio decoders (Mike Melanson)
682 - RealAudio 1.0 (14_4) and 2.0 (28_8) native decoders. Author unknown, code from mplayerhq
683 (originally from public domain player for Amiga at http://www.honeypot.net/audio)
684 - current version now also compiles with older GCC (Fabrice)
685 - 4X multimedia playback system including 4xm file demuxer (Mike
686 Melanson), and 4X video and audio codecs (Michael)
687 - Creative YUV (CYUV) decoder (Mike Melanson)
688 - FFV1 codec (our very simple lossless intra only codec, compresses much better
689 than HuffYUV) (Michael)
690 - ASV1 (Asus), H.264, Intel indeo3 codecs have been added (various)
691 - tiny PNG encoder and decoder, tiny GIF decoder, PAM decoder (PPM with
692 alpha support), JPEG YUV colorspace support. (Fabrice Bellard)
693 - ffplay has been replaced with a newer version which uses SDL (optionally)
694 for multiplatform support (Fabrice)
695 - Sorenson Version 3 codec (SVQ3) support has been added (decoding only) - donated
697 - AMR format has been added (Johannes Carlsson)
698 - 3GP support has been added (Johannes Carlsson)
699 - VP3 codec has been added (Mike Melanson)
700 - more MPEG-1/2 fixes
701 - better multiplatform support, MS Visual Studio fixes (various)
702 - AltiVec optimizations (Magnus Damn and others)
703 - SH4 processor support has been added (BERO)
704 - new public interfaces (avcodec_get_pix_fmt) (Roman Shaposhnick)
705 - VOB streaming support (Brian Foley)
706 - better MP3 autodetection (Andriy Rysin)
707 - qpel encoding (Michael)
708 - 4mv+b frames encoding finally fixed (Michael)
709 - chroma ME (Michael)
710 - 5 comparison functions for ME (Michael)
711 - B-frame encoding speedup (Michael)
712 - WMV2 codec (unfinished - Michael)
713 - user specified diamond size for EPZS (Michael)
714 - Playstation STR playback subsystem, still experimental (Mike and Michael)
715 - ASV2 codec (Michael)
716 - CLJR decoder (Alex)
718 .. And lots more new enhancements and fixes.
723 - completely new integer only MPEG audio layer 1/2/3 decoder rewritten
725 - Recoded DCT and motion vector search with gcc (no longer depends on nasm)
726 - fix quantization bug in AC3 encoder
727 - added PCM codecs and format. Corrected WAV/AVI/ASF PCM issues
728 - added prototype ffplay program
729 - added GOB header parsing on H.263/H.263+ decoder (Juanjo)
730 - bug fix on MCBPC tables of H.263 (Juanjo)
731 - bug fix on DC coefficients of H.263 (Juanjo)
732 - added Advanced Prediction Mode on H.263/H.263+ decoder (Juanjo)
733 - now we can decode H.263 streams found in QuickTime files (Juanjo)
734 - now we can decode H.263 streams found in VIVO v1 files(Juanjo)
735 - preliminary RTP "friendly" mode for H.263/H.263+ coding. (Juanjo)
736 - added GOB header for H.263/H.263+ coding on RTP mode (Juanjo)
737 - now H.263 picture size is returned on the first decoded frame (Juanjo)
738 - added first regression tests
739 - added MPEG-2 TS demuxer
740 - new demux API for libav
741 - more accurate and faster IDCT (Michael)
742 - faster and entropy-controlled motion search (Michael)
743 - two pass video encoding (Michael)
744 - new video rate control (Michael)
745 - added MSMPEG4V1, MSMPEGV2 and WMV1 support (Michael)
746 - great performance improvement of video encoders and decoders (Michael)
747 - new and faster bit readers and vlc parsers (Michael)
748 - high quality encoding mode: tries all macroblock/VLC types (Michael)
749 - added DV video decoder
750 - preliminary RTP/RTSP support in ffserver and libavformat
751 - H.263+ AIC decoding/encoding support (Juanjo)
752 - VCD MPEG-PS mode (Juanjo)
753 - PSNR stuff (Juanjo)
754 - simple stats output (Juanjo)
755 - 16-bit and 15-bit RGB/BGR/GBR support (Bisqwit)
760 - some header fixes (Zdenek Kabelac <kabi at informatics.muni.cz>)
761 - many MMX optimizations (Nick Kurshev <nickols_k at mail.ru>)
762 - added configure system (actually a small shell script)
763 - added MPEG audio layer 1/2/3 decoding using LGPL'ed mpglib by
764 Michael Hipp (temporary solution - waiting for integer only
766 - fixed VIDIOCSYNC interrupt
767 - added Intel H.263 decoding support ('I263' AVI fourCC)
768 - added Real Video 1.0 decoding (needs further testing)
769 - simplified image formats again. Added PGM format (=grey
770 pgm). Renamed old PGM to PGMYUV.
771 - fixed msmpeg4 slice issues (tell me if you still find problems)
772 - fixed OpenDivX bugs with newer versions (added VOL header decoding)
773 - added support for MPlayer interface
774 - added macroblock skip optimization
775 - added MJPEG decoder
776 - added mmx/mmxext IDCT from libmpeg2
777 - added pgmyuvpipe, ppm, and ppm_pipe formats (original patch by Celer
778 <celer at shell.scrypt.net>)
779 - added pixel format conversion layer (e.g. for MJPEG or PPM)
780 - added deinterlacing option
782 - MPEG-4 vol header fixes (Jonathan Marsden <snmjbm at pacbell.net>)
783 - ARM optimizations (Lionel Ulmer <lionel.ulmer at free.fr>).
784 - Windows porting of file converter
785 - added MJPEG raw format (input/ouput)
786 - added JPEG image format support (input/output)
791 - fixed some std header definitions (Bjorn Lindgren
792 <bjorn.e.lindgren at telia.com>).
793 - added MPEG demuxer (MPEG-1 and 2 compatible).
795 - added prototype RM demuxer
796 - added AC3 decoding (done with libac3 by Aaron Holtzman)
797 - added decoding codec parameter guessing (.e.g. for MPEG, because the
798 header does not include them)
799 - fixed header generation in MPEG-1, AVI and ASF muxer: wmplayer can now
800 play them (only tested video)
801 - fixed H.263 white bug
802 - fixed phase rounding in img resample filter
803 - add MMX code for polyphase img resample filter
804 - added CPU autodetection
805 - added generic title/author/copyright/comment string handling (ASF and RM
807 - added SWF demux to extract MP3 track (not usable yet because no MP3
809 - added fractional frame rate support
810 - codecs are no longer searched by read_header() (should fix ffserver
816 - BGR24 patch (initial patch by Jeroen Vreeken <pe1rxq at amsat.org>)
817 - fixed raw yuv output
818 - added motion rounding support in MPEG-4
819 - fixed motion bug rounding in MSMPEG4
820 - added B-frame handling in video core
821 - added full MPEG-1 decoding support
822 - added partial (frame only) MPEG-2 support
823 - changed the FOURCC code for H.263 to "U263" to be able to see the
824 +AVI/H.263 file with the UB Video H.263+ decoder. MPlayer works with
825 this +codec ;) (JuanJo).
826 - Halfpel motion estimation after MB type selection (JuanJo)
827 - added pgm and .Y.U.V output format
828 - suppressed 'img:' protocol. Simply use: /tmp/test%d.[pgm|Y] as input or
830 - added pgmpipe I/O format (original patch from Martin Aumueller
831 <lists at reserv.at>, but changed completely since we use a format
832 instead of a protocol)
837 - added H.263/MPEG-4/MSMPEG4 decoding support. MPEG-4 decoding support
838 (for OpenDivX) is almost complete: 8x8 MVs and rounding are
839 missing. MSMPEG4 support is complete.
840 - added prototype MPEG-1 decoder. Only I- and P-frames handled yet (it
841 can decode ffmpeg MPEGs :-)).
842 - added libavcodec API documentation (see apiexample.c).
843 - fixed image polyphase bug (the bottom of some images could be
845 - added support for non clipped motion vectors (decoding only)
846 and image sizes non-multiple of 16
847 - added support for AC prediction (decoding only)
848 - added file overwrite confirmation (can be disabled with -y)
849 - added custom size picture to H.263 using H.263+ (Juanjo)
854 - added MSMPEG4 (aka DivX) compatible encoder. Changed default codec
855 of AVI and ASF to DIV3.
856 - added -me option to set motion estimation method
857 (default=log). suppressed redundant -hq option.
858 - added options -acodec and -vcodec to force a given codec (useful for
861 - improved dct_quantize speed
862 - factorized some motion estimation code
867 - removing grab code from ffserver and moved it to ffmpeg. Added
868 multistream support to ffmpeg.
869 - added timeshifting support for live feeds (option ?date=xxx in the
871 - added high quality image resize code with polyphase filter (need
872 mmx/see optimization). Enable multiple image size support in ffserver.
873 - added multi live feed support in ffserver
874 - suppressed master feature from ffserver (it should be done with an
875 external program which opens the .ffm url and writes it to another
877 - added preliminary support for video stream parsing (WAV and AVI half
878 done). Added proper support for audio/video file conversion in
880 - added preliminary support for video file sending from ffserver
881 - redesigning I/O subsystem: now using URL based input and output
883 - added WAV format support
884 - added "tty user interface" to ffmpeg to stop grabbing gracefully
885 - added MMX/SSE optimizations to SAD (Sums of Absolutes Differences)
886 (Juan J. Sierralta P. a.k.a. "Juanjo" <juanjo at atmlab.utfsm.cl>)
887 - added MMX DCT from mpeg2_movie 1.5 (Juanjo)
888 - added new motion estimation algorithms, log and phods (Juanjo)
889 - changed directories: libav for format handling, libavcodec for
895 - added stereo in MPEG audio encoder
900 - added 'high quality' mode which use motion vectors. It can be used in
901 real time at low resolution.
902 - fixed rounding problems which caused quality problems at high
903 bitrates and large GOP size
906 version 0.3.2: small fixes
912 version 0.3.1: added avi/divx support
915 - added MPEG-4 codec compatible with OpenDivX. It is based on the H.263 codec
916 - added sound for flash format (not tested)
919 version 0.3: initial public release