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
43 - av_basename and av_dirname
44 - adobe and limelight publisher authentication in RTMP
45 - VDPAU hardware acceleration through normal hwaccel
50 - ashowinfo audio filter
51 - 24-bit FLAC encoding
53 - deprecated the avconv -vol option. the volume filter is to be used instead.
54 - multi-channel ALAC encoding up to 7.1
55 - TAK demuxer, parser, and decoder
56 - adaptive frame-level multithreading for H.264
60 - metadata (INFO tag) support in WAV muxer
61 - support for building DLLs using MSVC
62 - remove avserver daemon mode
63 - support building on the Plan 9 operating system
64 - ffv1: support version 1.3
69 - XWD encoder and decoder
70 - Support for fragmentation in the mov/mp4 muxer
71 - ISMV (Smooth Streaming) muxer
72 - CDXL demuxer and decoder
73 - Apple ProRes encoder
74 - Sun Rasterfile Encoder
76 - ID3v2 attached pictures reading and writing
77 - WMA Lossless decoder
79 - RealAudio Lossless decoder
81 - drop support for avconv without libavfilter
82 - add libavresample audio conversion library
83 - audio filters support in libavfilter and avconv
87 - avprobe output is now standard INI or JSON. The old format can still
90 - channelsplit audio filter
91 - RTMPT protocol support
92 - iLBC encoding/decoding via libilbc
93 - Microsoft Screen 1 decoder
95 - audio channel mapping filter
96 - Microsoft ATC Screen decoder
98 - TechSmith Screen Codec 2 decoder
99 - AAC encoding via libfdk-aac
100 - Microsoft Expression Encoder Screen decoder
101 - RTMPS protocol support
102 - RTMPTS protocol support
103 - JPEG 2000 encoding support through OpenJPEG
104 - G.723.1 demuxer and decoder
105 - RTMPE protocol support
106 - RTMPTE protocol support
107 - Canopus Lossless Codec decoder
108 - avconv -shortest option is now per-output file,
109 -pass and -passlogfile are now per-output stream
111 - Microsoft Screen 2 decoder
112 - RTP depacketization of JPEG
113 - Smooth Streaming live segmenter muxer
114 - RTP packetization of JPEG
115 - Opus decoder and encoder using libopus
116 - remove -same_quant, it hasn't worked for years
117 - support for building with MSVC
128 - Automatic thread count based on detection number of (available) CPU cores
129 - Deprecate libpostproc. If desired, the switch --enable-postproc will
130 enable it but it may be removed in a later Libav release.
131 - rv34: frame-level multi-threading
132 - optimized iMDCT transform on x86 using SSE for for mpegaudiodec
138 - Flash Screen Video 2 decoder
139 - ffplay/ffprobe/ffserver renamed to avplay/avprobe/avserver
140 - ffmpeg deprecated, added avconv, which is almost the same for now, except
141 for a few incompatible changes in the options, which will hopefully make them
142 easier to use. The changes are:
143 * The options placement is now strictly enforced! While in theory the
144 options for ffmpeg should be given in [input options] -i INPUT [output
145 options] OUTPUT order, in practice it was possible to give output options
146 before the -i and it mostly worked. Except when it didn't - the behavior was
147 a bit inconsistent. In avconv, it is not possible to mix input and output
148 options. All non-global options are reset after an input or output filename.
149 * All per-file options are now truly per-file - they apply only to the next
150 input or output file and specifying different values for different files
151 will now work properly (notably -ss and -t options).
152 * All per-stream options are now truly per-stream - it is possible to
153 specify which stream(s) should a given option apply to. See the Stream
154 specifiers section in the avconv manual for details.
155 * In ffmpeg some options (like -newvideo/-newaudio/...) are irregular in the
156 sense that they're specified after the output filename instead of before,
157 like all other options. In avconv this irregularity is removed, all options
158 apply to the next input or output file.
159 * -newvideo/-newaudio/-newsubtitle options were removed. Not only were they
160 irregular and highly confusing, they were also redundant. In avconv the -map
161 option will create new streams in the output file and map input streams to
162 them. E.g. avconv -i INPUT -map 0 OUTPUT will create an output stream for
163 each stream in the first input file.
164 * The -map option now has slightly different and more powerful syntax:
165 + Colons (':') are used to separate file index/stream type/stream index
166 instead of dots. Comma (',') is used to separate the sync stream instead
167 of colon.. This is done for consistency with other options.
168 + It's possible to specify stream type. E.g. -map 0:a:2 creates an
169 output stream from the third input audio stream.
170 + Omitting the stream index now maps all the streams of the given type,
171 not just the first. E.g. -map 0:s creates output streams for all the
172 subtitle streams in the first input file.
173 + Since -map can now match multiple streams, negative mappings were
174 introduced. Negative mappings disable some streams from an already
175 defined map. E.g. '-map 0 -map -0:a:1' means 'create output streams for
176 all the stream in the first input file, except for the second audio
178 * There is a new option -c (or -codec) for choosing the decoder/encoder to
179 use, which allows to precisely specify target stream(s) consistently with
180 other options. E.g. -c:v lib264 sets the codec for all video streams, -c:a:0
181 libvorbis sets the codec for the first audio stream and -c copy copies all
182 the streams without reencoding. Old -vcodec/-acodec/-scodec options are now
184 * It is now possible to precisely specify which stream should an AVOption
185 apply to. E.g. -b:v:0 2M sets the bitrate for the first video stream, while
186 -b:a 128k sets the bitrate for all audio streams. Note that the old -ab 128k
187 syntax is deprecated and will stop working soon.
188 * -map_chapters now takes only an input file index and applies to the next
189 output file. This is consistent with how all the other options work.
190 * -map_metadata now takes only an input metadata specifier and applies to
191 the next output file. Output metadata specifier is now part of the option
192 name, similarly to the AVOptions/map/codec feature above.
193 * -metadata can now be used to set metadata on streams and chapters, e.g.
194 -metadata:s:1 language=eng sets the language of the first stream to 'eng'.
195 This made -vlang/-alang/-slang options redundant, so they were removed.
196 * -qscale option now uses stream specifiers and applies to all streams, not
197 just video. I.e. plain -qscale number would now apply to all streams. To get
198 the old behavior, use -qscale:v. Also there is now a shortcut -q for -qscale
199 and -aq is now an alias for -q:a.
200 * -vbsf/-absf/-sbsf options were removed and replaced by a -bsf option which
201 uses stream specifiers. Use -bsf:v/a/s instead of the old options.
202 * -itsscale option now uses stream specifiers, so its argument is only the
204 * -intra option was removed, use -g 0 for the same effect.
205 * -psnr option was removed, use -flags +psnr for the same effect.
206 * -vf option is now an alias to the new -filter option, which uses stream specifiers.
207 * -vframes/-aframes/-dframes options are now aliases to the new -frames option.
208 * -vtag/-atag/-stag options are now aliases to the new -tag option.
210 - Windows Media Image decoder
214 - libcdio-paranoia input device for audio CD grabbing
216 - Apple ProRes decoder
217 - CELT in Ogg demuxing
218 - VC-1 interlaced decoding
219 - lut, lutrgb, and lutyuv filters
222 - Speex encoding via libspeex
223 - 4:2:2 H.264 decoding support
224 - 4:2:2 and 4:4:4 H.264 encoding with libx264
225 - Pulseaudio input device
226 - replacement Indeo 3 decoder
227 - TLS/SSL and HTTPS protocol support
228 - AVOptions API rewritten and documented
229 - most of CODEC_FLAG2_*, some CODEC_FLAG_* and many codec-specific fields in
230 AVCodecContext deprecated. Codec private options should be used instead.
231 - Properly working defaults in libx264 wrapper, support for native presets.
232 - Encrypted OMA files support
233 - Discworld II BMV decoding support
235 - OS X Video Decoder Acceleration (VDA) support
236 - CRI ADX audio format muxer and demuxer
237 - Playstation Portable PMP format demuxer
238 - PCM format support in OMA demuxer
240 - Dxtory capture format decoder
241 - v410 QuickTime uncompressed 4:4:4 10-bit encoder and decoder
243 - Simple segmenting muxer
250 - E-AC-3 audio encoder
251 - ac3enc: add channel coupling support
252 - floating-point sample format support for (E-)AC-3, DCA, AAC, Vorbis decoders
253 - H.264/MPEG frame-level multithreading
254 - av_metadata_* functions renamed to av_dict_* and moved to libavutil
255 - 4:4:4 H.264 decoding support
256 - 10-bit H.264 optimizations for x86
257 - bump libswscale for recently reported ABI break
262 - VP8 frame-level multithreading
263 - NEON optimizations for VP8
264 - removed a lot of deprecated API cruft
265 - FFT and IMDCT optimizations for AVX (Sandy Bridge) processors
267 - SMPTE 302M AES3 audio decoder
268 - ffmpeg no longer quits after the 'q' key is pressed; use 'ctrl+c' instead
269 - 9bit and 10bit per sample support in the H.264 decoder
274 - WebM support in Matroska de/muxer
275 - low overhead Ogg muxing
277 - VP8 de/encoding via libvpx
278 - Demuxer for On2's IVF format
279 - Pictor/PC Paint decoder
281 - libfaad2 wrapper removed
282 - DTS-ES extension (XCh) decoding support
284 - RTSP tunneling over HTTP
285 - RTP depacketization of SVQ3
286 - -strict inofficial replaced by -strict unofficial
287 - ffplay -exitonkeydown and -exitonmousedown options added
288 - native GSM / GSM MS decoder
289 - RTP depacketization of QDM2
290 - ANSI/ASCII art playback system
291 - Lego Mindstorms RSO de/muxer
292 - SubRip subtitle file muxer and demuxer
293 - Chinese AVS encoding via libxavs
294 - ffprobe -show_packets option added
295 - RTP packetization of Theora and Vorbis
296 - RTP depacketization of MP4A-LATM
297 - RTP packetization and depacketization of VP8
299 - Apple HTTP Live Streaming demuxer
302 - G.722 ADPCM audio encoder/decoder
305 - frei0r wrapper filter
306 - change crop filter syntax to width:height:x:y
307 - make the crop filter accept parametric expressions
308 - make ffprobe accept AVFormatContext options
311 - Demuxer for Leitch/Harris' VR native stream format (LXF)
312 - RTP depacketization of the X-QT QuickTime format
313 - SAP (Session Announcement Protocol, RFC 2974) muxer and demuxer
315 - ffmpeg -crop* options removed
316 - transpose filter added
317 - ffmpeg -force_key_frames option added
318 - demuxer for receiving raw rtp:// URLs without an SDP description
319 - single stream LATM/LOAS decoder
320 - setpts filter added
321 - Win64 support for optimized x86 assembly functions
322 - MJPEG/AVI1 to JPEG/JFIF bitstream filter
323 - ASS subtitle encoder and decoder
324 - IEC 61937 encapsulation for E-AC-3, TrueHD, DTS-HD (for HDMI passthrough)
325 - overlay filter added
326 - rename aspect filter to setdar, and pixelaspect to setsar
328 - Mobotix .mxg demuxer
329 - frei0r source added
330 - hqdn3d filter added
331 - RTP depacketization of QCELP
333 - gradfun filter added
335 - replace the ocv_smooth filter with a more generic ocv filter
336 - Windows Televison (WTV) demuxer
337 - FFmpeg metadata format muxer and demuxer
338 - SubRip (srt) subtitle decoder
339 - floating-point AC-3 encoder added
341 - ffmpeg -copytb option added
343 - Wing Commander IV movies decoder added
345 - Bink version 'b' audio and video decoder
346 - Bitmap Brothers JV playback system
347 - Apple HTTP Live Streaming protocol handler
348 - sndio support for playback and record
349 - Linux framebuffer input device added
350 - Chronomaster DFA decoder
351 - Mobotix MxPEG decoder
352 - AAC encoding via libvo-aacenc
353 - AMR-WB encoding via libvo-amrwbenc
355 - fieldorder video filter added
360 - PB-frame decoding for H.263
361 - deprecated vhook subsystem removed
362 - deprecated old scaler removed
364 - Alpha channel scaler
366 - RTP packetization of H.263
367 - RTP packetization of AMR
368 - RTP depacketization of Vorbis
369 - CorePNG decoding support
370 - Cook multichannel decoding support
371 - introduced avlanguage helpers in libavformat
372 - 8088flex TMV demuxer and decoder
373 - per-stream language-tags extraction in asfdec
374 - V210 decoder and encoder
375 - remaining GPL parts in AC-3 decoder converted to LGPL
377 - SoX native format muxer and demuxer
378 - AMR-NB decoding/encoding, AMR-WB decoding via OpenCORE libraries
380 - Electronic Arts Madcow decoder
381 - DivX (XSUB) subtitle encoder
382 - nonfree libamr support for AMR-NB/WB decoding/encoding removed
383 - experimental AAC encoder
384 - RTP depacketization of ASF and RTSP from WMS servers
385 - RTMP support in libavformat
386 - noX handling for OPT_BOOL X options
388 - IEC-61937 compatible Muxer
390 - Bluray (PGS) subtitle decoder
391 - LPCM support in MPEG-TS (HDMV RID as found on Blu-ray disks)
393 - Core Audio Format demuxer
395 - MD STUDIO audio demuxer
396 - RF64 support in WAV demuxer
397 - MPEG-4 Audio Lossless Coding (ALS) decoder
398 - -formats option split into -formats, -codecs, -bsfs, and -protocols
400 - CDG demuxer and decoder
402 - Auravision Aura 1 and 2 decoders
403 - Deluxe Paint Animation playback system
405 - Adobe Filmstrip muxer and demuxer
406 - RTP depacketization of H.263
407 - Bink demuxer and audio/video decoders
408 - enable symbol versioning by default for linkers that support it
409 - IFF PBM/ILBM bitmap decoder
412 - RTP depacketization of AMR
418 - Kega Game Video (KGV1) decoder
419 - VorbisComment writing for FLAC, Ogg FLAC and Ogg Speex files
420 - RTP depacketization of Theora
421 - HTTP Digest authentication
422 - RTMP/RTMPT/RTMPS/RTMPE/RTMPTE protocol support via librtmp
423 - Psygnosis YOP demuxer and video decoder
424 - spectral extension support in the E-AC-3 decoder
425 - unsharp video filter
426 - RTP hinting in the mov/3gp/mp4 muxer
427 - Dirac in Ogg demuxing
428 - seek to keyframes in Ogg
429 - 4:2:2 and 4:4:4 Theora decoding
430 - 35% faster VP3/Theora decoding
431 - faster AAC decoding
432 - faster H.264 decoding
433 - RealAudio 1.0 (14.4K) encoder
438 - DV50 AKA DVCPRO50 encoder, decoder, muxer and demuxer
439 - TechSmith Camtasia (TSCC) video decoder
440 - IBM Ultimotion (ULTI) video decoder
441 - Sierra Online audio file demuxer and decoder
442 - Apple QuickDraw (qdrw) video decoder
443 - Creative ADPCM audio decoder (16 bits as well as 8 bits schemes)
444 - Electronic Arts Multimedia (WVE/UV2/etc.) file demuxer
445 - Miro VideoXL (VIXL) video decoder
446 - H.261 video encoder
448 - Nullsoft Video (NSV) file demuxer
449 - Shorten audio decoder
451 - Apple Lossless Audio Codec (ALAC) decoder
452 - Winnov WNV1 video decoder
453 - Autodesk Animator Studio Codec (AASC) decoder
454 - Indeo 2 video decoder
455 - Fraps FPS1 video decoder
456 - Snow video encoder/decoder
457 - Sonic audio encoder/decoder
458 - Vorbis audio decoder
459 - Macromedia ADPCM decoder
460 - Duck TrueMotion 2 video decoder
461 - support for decoding FLX and DTA extensions in FLIC files
462 - H.264 custom quantization matrices support
463 - ffserver fixed, it should now be usable again
465 - Real Cooker audio decoder
466 - TrueSpeech audio decoder
467 - WMA2 audio decoder fixed, now all files should play correctly
468 - RealAudio 14.4 and 28.8 decoders fixed
470 - build system improvements
471 - tabs and trailing whitespace removed from the codebase
472 - CamStudio video decoder
473 - AIFF/AIFF-C audio format, encoding and decoding
474 - ADTS AAC file reading and writing
475 - Creative VOC file reading and writing
476 - American Laser Games multimedia (*.mm) playback system
477 - Zip Motion Blocks Video decoder
478 - improved Theora/VP3 decoder
479 - True Audio (TTA) decoder
480 - AVS demuxer and video decoder
482 - Smacker demuxer and decoder
483 - NuppelVideo/MythTV demuxer and RTjpeg decoder
485 - MPEG-2 intra VLC support
486 - MPEG-2 4:2:2 encoder
487 - Flash Screen Video decoder
489 - Chinese AVS decoder
492 - VC-1/WMV3/WMV9 video decoder
495 - VMware video decoder
498 - WavPack lossless audio decoder
499 - Targa (.TGA) picture decoder
500 - Vorbis audio encoder
501 - Delphine Software .cin demuxer/audio and video decoder
502 - Tiertex .seq demuxer/video decoder
504 - TIFF picture encoder and decoder
505 - GIF picture decoder
506 - Intel Music Coder decoder
507 - Zip Motion Blocks Video encoder
509 - Flash Screen Video encoder
510 - Theora encoding via libtheora
513 - GSM-MS encoder and decoder
515 - DXA demuxer and decoder
517 - Gamecube movie (.THP) playback system
518 - Blackfin optimizations
519 - Interplay C93 demuxer and video decoder
520 - Bethsoft VID demuxer and video decoder
523 - V.Flash PTX decoder
524 - RoQ muxer, RoQ audio encoder
525 - Renderware TXD demuxer and decoder
526 - extern C declarations for C++ removed from headers
527 - sws_flags command line option
531 - OS/2 support removed and restored again
534 - additional SPARC (VIS) optimizations
536 - slice-based parallel H.264 decoding
537 - Monkey's Audio demuxer and decoder
538 - AMV audio and video decoder
540 - H.264 PAFF decoding
541 - Nellymoser ASAO decoder
542 - Beam Software SIFF demuxer and decoder
543 - libvorbis Vorbis decoding removed in favor of native decoder
544 - IntraX8 (J-Frame) subdecoder for WMV2 and VC-1
545 - Ogg (Theora, Vorbis and FLAC) muxer
546 - The "device" muxers and demuxers are now in a new libavdevice library
547 - PC Paintbrush PCX decoder
548 - Sun Rasterfile decoder
549 - TechnoTrend PVA demuxer
550 - Linux Media Labs MPEG-4 (LMLM4) demuxer
551 - AVM2 (Flash 9) SWF muxer
552 - QT variant of IMA ADPCM encoder
554 - iPod/iPhone compatible mp4 muxer
556 - MSN TCP Webcam stream demuxer
557 - RL2 demuxer / decoder
560 - non-recursive Makefiles
562 - MAXIS EA XA (.xa) demuxer / decoder
566 - Electronic Arts CMV decoder
567 - Motion Pixels Video decoder
568 - Motion Pixels MVI demuxer
569 - removed animated GIF decoder/demuxer
570 - D-Cinema audio muxer
571 - Electronic Arts TGV decoder
572 - Apple Lossless Audio Codec (ALAC) encoder
574 - floating point PCM encoder/decoder
576 - DV100 AKA DVCPRO HD decoder and demuxer
577 - E-AC-3 support added to AC-3 decoder
578 - Nellymoser ASAO encoder
579 - ASS and SSA demuxer and muxer
580 - liba52 wrapper removed
581 - SVQ3 watermark decoding support
582 - Speex decoding via libspeex
583 - Electronic Arts TGQ decoder
585 - QCELP / PureVoice decoder
587 - hybrid WavPack support
588 - R3D REDCODE demuxer
589 - ALSA support for playback and record
590 - Electronic Arts TQI decoder
591 - OpenJPEG based JPEG 2000 decoder
592 - NC (NC4600) camera file demuxer
593 - Gopher client support
595 - generic metadata API
600 - DV encoder, DV muxer
601 - Microsoft RLE video decoder
602 - Microsoft Video-1 decoder
603 - Apple Animation (RLE) decoder
604 - Apple Graphics (SMC) decoder
605 - Apple Video (RPZA) decoder
607 - Sega FILM (CPK) file demuxer
608 - Westwood multimedia support (VQA & AUD files)
609 - Id Quake II CIN playback support
611 - FLIC playback support
612 - RealVideo 2.0 (RV20) decoder
613 - Duck TrueMotion v1 (DUCK) video decoder
614 - Sierra VMD demuxer and video decoder
615 - MSZH and ZLIB decoder support
619 - rate distortion optimal cbp support
620 - rate distorted optimal ac prediction for MPEG-4
621 - rate distorted optimal lambda->qp support
622 - AAC encoding with libfaac
623 - Sunplus JPEG codec (SP5X) support
624 - use Lagrange multipler instead of QP for ratecontrol
625 - Theora/VP3 decoding support
626 - XA and ADX ADPCM codecs
627 - export MPEG-2 active display area / pan scan
628 - Add support for configuring with IBM XLC
629 - floating point AAN DCT
630 - initial support for zygo video (not complete)
632 - new audio/video parser API
634 - av_read_frame() and av_seek_frame() support
635 - missing last frame fixes
636 - seek by mouse in ffplay
637 - noise reduction of DCT coefficients
638 - H.263 OBMC & 4MV support
639 - H.263 alternative inter vlc support
641 - H.263 slice structured mode
642 - interlaced DCT support for MPEG-2 encoding
643 - stuffing to stay above min_bitrate
644 - MB type & QP visualization
645 - frame stepping for ffplay
646 - interlaced motion estimation
647 - alternate scantable support
648 - SVCD scan offset support
651 - quantizer noise shaping
652 - G.726 ADPCM audio codec
654 - multithreaded/SMP motion estimation
655 - multithreaded/SMP encoding for MPEG-1/MPEG-2/MPEG-4/H.263
656 - multithreaded/SMP decoding for MPEG-2
658 - Metrowerks CodeWarrior suppport
659 - H.263+ custom pcf support
660 - nicer output for 'ffmpeg -formats'
662 - SGI image format, encoding and decoding
663 - H.264 loop filter support
664 - H.264 CABAC support
665 - nicer looking arrows for the motion vector visualization
666 - improved VCD support
667 - audio timestamp drift compensation
668 - MPEG-2 YUV 422/444 support
669 - polyphase kaiser windowed sinc and blackman nuttall windowed sinc audio resample
670 - better image scaling
672 - correctly interleave packets during encoding
673 - VIS optimized motion compensation
674 - intra_dc_precision>0 encoding support
675 - support reuse of motion vectors/MB types/field select values of the source video
676 - more accurate deblock filter
678 - many optimizations and bugfixes
679 - FunCom ISS audio file demuxer and according ADPCM decoding
684 - MPEG-2 video encoding (Michael)
685 - Id RoQ playback subsystem (Mike Melanson and Tim Ferguson)
686 - Wing Commander III Movie (.mve) file playback subsystem (Mike Melanson
688 - Xan DPCM audio decoder (Mario Brito)
689 - Interplay MVE playback subsystem (Mike Melanson)
690 - Duck DK3 and DK4 ADPCM audio decoders (Mike Melanson)
695 - RealAudio 1.0 (14_4) and 2.0 (28_8) native decoders. Author unknown, code from mplayerhq
696 (originally from public domain player for Amiga at http://www.honeypot.net/audio)
697 - current version now also compiles with older GCC (Fabrice)
698 - 4X multimedia playback system including 4xm file demuxer (Mike
699 Melanson), and 4X video and audio codecs (Michael)
700 - Creative YUV (CYUV) decoder (Mike Melanson)
701 - FFV1 codec (our very simple lossless intra only codec, compresses much better
702 than HuffYUV) (Michael)
703 - ASV1 (Asus), H.264, Intel indeo3 codecs have been added (various)
704 - tiny PNG encoder and decoder, tiny GIF decoder, PAM decoder (PPM with
705 alpha support), JPEG YUV colorspace support. (Fabrice Bellard)
706 - ffplay has been replaced with a newer version which uses SDL (optionally)
707 for multiplatform support (Fabrice)
708 - Sorenson Version 3 codec (SVQ3) support has been added (decoding only) - donated
710 - AMR format has been added (Johannes Carlsson)
711 - 3GP support has been added (Johannes Carlsson)
712 - VP3 codec has been added (Mike Melanson)
713 - more MPEG-1/2 fixes
714 - better multiplatform support, MS Visual Studio fixes (various)
715 - AltiVec optimizations (Magnus Damn and others)
716 - SH4 processor support has been added (BERO)
717 - new public interfaces (avcodec_get_pix_fmt) (Roman Shaposhnick)
718 - VOB streaming support (Brian Foley)
719 - better MP3 autodetection (Andriy Rysin)
720 - qpel encoding (Michael)
721 - 4mv+b frames encoding finally fixed (Michael)
722 - chroma ME (Michael)
723 - 5 comparison functions for ME (Michael)
724 - B-frame encoding speedup (Michael)
725 - WMV2 codec (unfinished - Michael)
726 - user specified diamond size for EPZS (Michael)
727 - Playstation STR playback subsystem, still experimental (Mike and Michael)
728 - ASV2 codec (Michael)
729 - CLJR decoder (Alex)
731 .. And lots more new enhancements and fixes.
736 - completely new integer only MPEG audio layer 1/2/3 decoder rewritten
738 - Recoded DCT and motion vector search with gcc (no longer depends on nasm)
739 - fix quantization bug in AC3 encoder
740 - added PCM codecs and format. Corrected WAV/AVI/ASF PCM issues
741 - added prototype ffplay program
742 - added GOB header parsing on H.263/H.263+ decoder (Juanjo)
743 - bug fix on MCBPC tables of H.263 (Juanjo)
744 - bug fix on DC coefficients of H.263 (Juanjo)
745 - added Advanced Prediction Mode on H.263/H.263+ decoder (Juanjo)
746 - now we can decode H.263 streams found in QuickTime files (Juanjo)
747 - now we can decode H.263 streams found in VIVO v1 files(Juanjo)
748 - preliminary RTP "friendly" mode for H.263/H.263+ coding. (Juanjo)
749 - added GOB header for H.263/H.263+ coding on RTP mode (Juanjo)
750 - now H.263 picture size is returned on the first decoded frame (Juanjo)
751 - added first regression tests
752 - added MPEG-2 TS demuxer
753 - new demux API for libav
754 - more accurate and faster IDCT (Michael)
755 - faster and entropy-controlled motion search (Michael)
756 - two pass video encoding (Michael)
757 - new video rate control (Michael)
758 - added MSMPEG4V1, MSMPEGV2 and WMV1 support (Michael)
759 - great performance improvement of video encoders and decoders (Michael)
760 - new and faster bit readers and vlc parsers (Michael)
761 - high quality encoding mode: tries all macroblock/VLC types (Michael)
762 - added DV video decoder
763 - preliminary RTP/RTSP support in ffserver and libavformat
764 - H.263+ AIC decoding/encoding support (Juanjo)
765 - VCD MPEG-PS mode (Juanjo)
766 - PSNR stuff (Juanjo)
767 - simple stats output (Juanjo)
768 - 16-bit and 15-bit RGB/BGR/GBR support (Bisqwit)
773 - some header fixes (Zdenek Kabelac <kabi at informatics.muni.cz>)
774 - many MMX optimizations (Nick Kurshev <nickols_k at mail.ru>)
775 - added configure system (actually a small shell script)
776 - added MPEG audio layer 1/2/3 decoding using LGPL'ed mpglib by
777 Michael Hipp (temporary solution - waiting for integer only
779 - fixed VIDIOCSYNC interrupt
780 - added Intel H.263 decoding support ('I263' AVI fourCC)
781 - added Real Video 1.0 decoding (needs further testing)
782 - simplified image formats again. Added PGM format (=grey
783 pgm). Renamed old PGM to PGMYUV.
784 - fixed msmpeg4 slice issues (tell me if you still find problems)
785 - fixed OpenDivX bugs with newer versions (added VOL header decoding)
786 - added support for MPlayer interface
787 - added macroblock skip optimization
788 - added MJPEG decoder
789 - added mmx/mmxext IDCT from libmpeg2
790 - added pgmyuvpipe, ppm, and ppm_pipe formats (original patch by Celer
791 <celer at shell.scrypt.net>)
792 - added pixel format conversion layer (e.g. for MJPEG or PPM)
793 - added deinterlacing option
795 - MPEG-4 vol header fixes (Jonathan Marsden <snmjbm at pacbell.net>)
796 - ARM optimizations (Lionel Ulmer <lionel.ulmer at free.fr>).
797 - Windows porting of file converter
798 - added MJPEG raw format (input/ouput)
799 - added JPEG image format support (input/output)
804 - fixed some std header definitions (Bjorn Lindgren
805 <bjorn.e.lindgren at telia.com>).
806 - added MPEG demuxer (MPEG-1 and 2 compatible).
808 - added prototype RM demuxer
809 - added AC3 decoding (done with libac3 by Aaron Holtzman)
810 - added decoding codec parameter guessing (.e.g. for MPEG, because the
811 header does not include them)
812 - fixed header generation in MPEG-1, AVI and ASF muxer: wmplayer can now
813 play them (only tested video)
814 - fixed H.263 white bug
815 - fixed phase rounding in img resample filter
816 - add MMX code for polyphase img resample filter
817 - added CPU autodetection
818 - added generic title/author/copyright/comment string handling (ASF and RM
820 - added SWF demux to extract MP3 track (not usable yet because no MP3
822 - added fractional frame rate support
823 - codecs are no longer searched by read_header() (should fix ffserver
829 - BGR24 patch (initial patch by Jeroen Vreeken <pe1rxq at amsat.org>)
830 - fixed raw yuv output
831 - added motion rounding support in MPEG-4
832 - fixed motion bug rounding in MSMPEG4
833 - added B-frame handling in video core
834 - added full MPEG-1 decoding support
835 - added partial (frame only) MPEG-2 support
836 - changed the FOURCC code for H.263 to "U263" to be able to see the
837 +AVI/H.263 file with the UB Video H.263+ decoder. MPlayer works with
838 this +codec ;) (JuanJo).
839 - Halfpel motion estimation after MB type selection (JuanJo)
840 - added pgm and .Y.U.V output format
841 - suppressed 'img:' protocol. Simply use: /tmp/test%d.[pgm|Y] as input or
843 - added pgmpipe I/O format (original patch from Martin Aumueller
844 <lists at reserv.at>, but changed completely since we use a format
845 instead of a protocol)
850 - added H.263/MPEG-4/MSMPEG4 decoding support. MPEG-4 decoding support
851 (for OpenDivX) is almost complete: 8x8 MVs and rounding are
852 missing. MSMPEG4 support is complete.
853 - added prototype MPEG-1 decoder. Only I- and P-frames handled yet (it
854 can decode ffmpeg MPEGs :-)).
855 - added libavcodec API documentation (see apiexample.c).
856 - fixed image polyphase bug (the bottom of some images could be
858 - added support for non clipped motion vectors (decoding only)
859 and image sizes non-multiple of 16
860 - added support for AC prediction (decoding only)
861 - added file overwrite confirmation (can be disabled with -y)
862 - added custom size picture to H.263 using H.263+ (Juanjo)
867 - added MSMPEG4 (aka DivX) compatible encoder. Changed default codec
868 of AVI and ASF to DIV3.
869 - added -me option to set motion estimation method
870 (default=log). suppressed redundant -hq option.
871 - added options -acodec and -vcodec to force a given codec (useful for
874 - improved dct_quantize speed
875 - factorized some motion estimation code
880 - removing grab code from ffserver and moved it to ffmpeg. Added
881 multistream support to ffmpeg.
882 - added timeshifting support for live feeds (option ?date=xxx in the
884 - added high quality image resize code with polyphase filter (need
885 mmx/see optimization). Enable multiple image size support in ffserver.
886 - added multi live feed support in ffserver
887 - suppressed master feature from ffserver (it should be done with an
888 external program which opens the .ffm url and writes it to another
890 - added preliminary support for video stream parsing (WAV and AVI half
891 done). Added proper support for audio/video file conversion in
893 - added preliminary support for video file sending from ffserver
894 - redesigning I/O subsystem: now using URL based input and output
896 - added WAV format support
897 - added "tty user interface" to ffmpeg to stop grabbing gracefully
898 - added MMX/SSE optimizations to SAD (Sums of Absolutes Differences)
899 (Juan J. Sierralta P. a.k.a. "Juanjo" <juanjo at atmlab.utfsm.cl>)
900 - added MMX DCT from mpeg2_movie 1.5 (Juanjo)
901 - added new motion estimation algorithms, log and phods (Juanjo)
902 - changed directories: libav for format handling, libavcodec for
908 - added stereo in MPEG audio encoder
913 - added 'high quality' mode which use motion vectors. It can be used in
914 real time at low resolution.
915 - fixed rounding problems which caused quality problems at high
916 bitrates and large GOP size
919 version 0.3.2: small fixes
925 version 0.3.1: added avi/divx support
928 - added MPEG-4 codec compatible with OpenDivX. It is based on the H.263 codec
929 - added sound for flash format (not tested)
932 version 0.3: initial public release