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)
52 - remove mp3_header_(de)compress bitstream filters
56 - av_basename and av_dirname
57 - adobe and limelight publisher authentication in RTMP
58 - VDPAU hardware acceleration through normal hwaccel
63 - ashowinfo audio filter
64 - 24-bit FLAC encoding
66 - deprecated the avconv -vol option. the volume filter is to be used instead.
67 - multi-channel ALAC encoding up to 7.1
68 - TAK demuxer, parser, and decoder
69 - adaptive frame-level multithreading for H.264
73 - metadata (INFO tag) support in WAV muxer
74 - support for building DLLs using MSVC
75 - remove avserver daemon mode
76 - support building on the Plan 9 operating system
77 - ffv1: support version 1.3
82 - XWD encoder and decoder
83 - Support for fragmentation in the mov/mp4 muxer
84 - ISMV (Smooth Streaming) muxer
85 - CDXL demuxer and decoder
86 - Apple ProRes encoder
87 - Sun Rasterfile Encoder
89 - ID3v2 attached pictures reading and writing
90 - WMA Lossless decoder
92 - RealAudio Lossless decoder
94 - drop support for avconv without libavfilter
95 - add libavresample audio conversion library
96 - audio filters support in libavfilter and avconv
100 - avprobe output is now standard INI or JSON. The old format can still
101 be used with -of old.
102 - Indeo Audio decoder
103 - channelsplit audio filter
104 - RTMPT protocol support
105 - iLBC encoding/decoding via libilbc
106 - Microsoft Screen 1 decoder
108 - audio channel mapping filter
109 - Microsoft ATC Screen decoder
111 - TechSmith Screen Codec 2 decoder
112 - AAC encoding via libfdk-aac
113 - Microsoft Expression Encoder Screen decoder
114 - RTMPS protocol support
115 - RTMPTS protocol support
116 - JPEG 2000 encoding support through OpenJPEG
117 - G.723.1 demuxer and decoder
118 - RTMPE protocol support
119 - RTMPTE protocol support
120 - Canopus Lossless Codec decoder
121 - avconv -shortest option is now per-output file,
122 -pass and -passlogfile are now per-output stream
124 - Microsoft Screen 2 decoder
125 - RTP depacketization of JPEG
126 - Smooth Streaming live segmenter muxer
127 - RTP packetization of JPEG
128 - Opus decoder and encoder using libopus
129 - remove -same_quant, it hasn't worked for years
130 - support for building with MSVC
141 - Automatic thread count based on detection number of (available) CPU cores
142 - Deprecate libpostproc. If desired, the switch --enable-postproc will
143 enable it but it may be removed in a later Libav release.
144 - rv34: frame-level multi-threading
145 - optimized iMDCT transform on x86 using SSE for for mpegaudiodec
151 - Flash Screen Video 2 decoder
152 - ffplay/ffprobe/ffserver renamed to avplay/avprobe/avserver
153 - ffmpeg deprecated, added avconv, which is almost the same for now, except
154 for a few incompatible changes in the options, which will hopefully make them
155 easier to use. The changes are:
156 * The options placement is now strictly enforced! While in theory the
157 options for ffmpeg should be given in [input options] -i INPUT [output
158 options] OUTPUT order, in practice it was possible to give output options
159 before the -i and it mostly worked. Except when it didn't - the behavior was
160 a bit inconsistent. In avconv, it is not possible to mix input and output
161 options. All non-global options are reset after an input or output filename.
162 * All per-file options are now truly per-file - they apply only to the next
163 input or output file and specifying different values for different files
164 will now work properly (notably -ss and -t options).
165 * All per-stream options are now truly per-stream - it is possible to
166 specify which stream(s) should a given option apply to. See the Stream
167 specifiers section in the avconv manual for details.
168 * In ffmpeg some options (like -newvideo/-newaudio/...) are irregular in the
169 sense that they're specified after the output filename instead of before,
170 like all other options. In avconv this irregularity is removed, all options
171 apply to the next input or output file.
172 * -newvideo/-newaudio/-newsubtitle options were removed. Not only were they
173 irregular and highly confusing, they were also redundant. In avconv the -map
174 option will create new streams in the output file and map input streams to
175 them. E.g. avconv -i INPUT -map 0 OUTPUT will create an output stream for
176 each stream in the first input file.
177 * The -map option now has slightly different and more powerful syntax:
178 + Colons (':') are used to separate file index/stream type/stream index
179 instead of dots. Comma (',') is used to separate the sync stream instead
180 of colon.. This is done for consistency with other options.
181 + It's possible to specify stream type. E.g. -map 0:a:2 creates an
182 output stream from the third input audio stream.
183 + Omitting the stream index now maps all the streams of the given type,
184 not just the first. E.g. -map 0:s creates output streams for all the
185 subtitle streams in the first input file.
186 + Since -map can now match multiple streams, negative mappings were
187 introduced. Negative mappings disable some streams from an already
188 defined map. E.g. '-map 0 -map -0:a:1' means 'create output streams for
189 all the stream in the first input file, except for the second audio
191 * There is a new option -c (or -codec) for choosing the decoder/encoder to
192 use, which allows to precisely specify target stream(s) consistently with
193 other options. E.g. -c:v lib264 sets the codec for all video streams, -c:a:0
194 libvorbis sets the codec for the first audio stream and -c copy copies all
195 the streams without reencoding. Old -vcodec/-acodec/-scodec options are now
197 * It is now possible to precisely specify which stream should an AVOption
198 apply to. E.g. -b:v:0 2M sets the bitrate for the first video stream, while
199 -b:a 128k sets the bitrate for all audio streams. Note that the old -ab 128k
200 syntax is deprecated and will stop working soon.
201 * -map_chapters now takes only an input file index and applies to the next
202 output file. This is consistent with how all the other options work.
203 * -map_metadata now takes only an input metadata specifier and applies to
204 the next output file. Output metadata specifier is now part of the option
205 name, similarly to the AVOptions/map/codec feature above.
206 * -metadata can now be used to set metadata on streams and chapters, e.g.
207 -metadata:s:1 language=eng sets the language of the first stream to 'eng'.
208 This made -vlang/-alang/-slang options redundant, so they were removed.
209 * -qscale option now uses stream specifiers and applies to all streams, not
210 just video. I.e. plain -qscale number would now apply to all streams. To get
211 the old behavior, use -qscale:v. Also there is now a shortcut -q for -qscale
212 and -aq is now an alias for -q:a.
213 * -vbsf/-absf/-sbsf options were removed and replaced by a -bsf option which
214 uses stream specifiers. Use -bsf:v/a/s instead of the old options.
215 * -itsscale option now uses stream specifiers, so its argument is only the
217 * -intra option was removed, use -g 0 for the same effect.
218 * -psnr option was removed, use -flags +psnr for the same effect.
219 * -vf option is now an alias to the new -filter option, which uses stream specifiers.
220 * -vframes/-aframes/-dframes options are now aliases to the new -frames option.
221 * -vtag/-atag/-stag options are now aliases to the new -tag option.
223 - Windows Media Image decoder
227 - libcdio-paranoia input device for audio CD grabbing
229 - Apple ProRes decoder
230 - CELT in Ogg demuxing
231 - VC-1 interlaced decoding
232 - lut, lutrgb, and lutyuv filters
235 - Speex encoding via libspeex
236 - 4:2:2 H.264 decoding support
237 - 4:2:2 and 4:4:4 H.264 encoding with libx264
238 - Pulseaudio input device
239 - replacement Indeo 3 decoder
240 - TLS/SSL and HTTPS protocol support
241 - AVOptions API rewritten and documented
242 - most of CODEC_FLAG2_*, some CODEC_FLAG_* and many codec-specific fields in
243 AVCodecContext deprecated. Codec private options should be used instead.
244 - Properly working defaults in libx264 wrapper, support for native presets.
245 - Encrypted OMA files support
246 - Discworld II BMV decoding support
248 - OS X Video Decoder Acceleration (VDA) support
249 - CRI ADX audio format muxer and demuxer
250 - Playstation Portable PMP format demuxer
251 - PCM format support in OMA demuxer
253 - Dxtory capture format decoder
254 - v410 QuickTime uncompressed 4:4:4 10-bit encoder and decoder
256 - Simple segmenting muxer
263 - E-AC-3 audio encoder
264 - ac3enc: add channel coupling support
265 - floating-point sample format support for (E-)AC-3, DCA, AAC, Vorbis decoders
266 - H.264/MPEG frame-level multithreading
267 - av_metadata_* functions renamed to av_dict_* and moved to libavutil
268 - 4:4:4 H.264 decoding support
269 - 10-bit H.264 optimizations for x86
270 - bump libswscale for recently reported ABI break
275 - VP8 frame-level multithreading
276 - NEON optimizations for VP8
277 - removed a lot of deprecated API cruft
278 - FFT and IMDCT optimizations for AVX (Sandy Bridge) processors
280 - SMPTE 302M AES3 audio decoder
281 - ffmpeg no longer quits after the 'q' key is pressed; use 'ctrl+c' instead
282 - 9bit and 10bit per sample support in the H.264 decoder
287 - WebM support in Matroska de/muxer
288 - low overhead Ogg muxing
290 - VP8 de/encoding via libvpx
291 - Demuxer for On2's IVF format
292 - Pictor/PC Paint decoder
294 - libfaad2 wrapper removed
295 - DTS-ES extension (XCh) decoding support
297 - RTSP tunneling over HTTP
298 - RTP depacketization of SVQ3
299 - -strict inofficial replaced by -strict unofficial
300 - ffplay -exitonkeydown and -exitonmousedown options added
301 - native GSM / GSM MS decoder
302 - RTP depacketization of QDM2
303 - ANSI/ASCII art playback system
304 - Lego Mindstorms RSO de/muxer
305 - SubRip subtitle file muxer and demuxer
306 - Chinese AVS encoding via libxavs
307 - ffprobe -show_packets option added
308 - RTP packetization of Theora and Vorbis
309 - RTP depacketization of MP4A-LATM
310 - RTP packetization and depacketization of VP8
312 - Apple HTTP Live Streaming demuxer
315 - G.722 ADPCM audio encoder/decoder
318 - frei0r wrapper filter
319 - change crop filter syntax to width:height:x:y
320 - make the crop filter accept parametric expressions
321 - make ffprobe accept AVFormatContext options
324 - Demuxer for Leitch/Harris' VR native stream format (LXF)
325 - RTP depacketization of the X-QT QuickTime format
326 - SAP (Session Announcement Protocol, RFC 2974) muxer and demuxer
328 - ffmpeg -crop* options removed
329 - transpose filter added
330 - ffmpeg -force_key_frames option added
331 - demuxer for receiving raw rtp:// URLs without an SDP description
332 - single stream LATM/LOAS decoder
333 - setpts filter added
334 - Win64 support for optimized x86 assembly functions
335 - MJPEG/AVI1 to JPEG/JFIF bitstream filter
336 - ASS subtitle encoder and decoder
337 - IEC 61937 encapsulation for E-AC-3, TrueHD, DTS-HD (for HDMI passthrough)
338 - overlay filter added
339 - rename aspect filter to setdar, and pixelaspect to setsar
341 - Mobotix .mxg demuxer
342 - frei0r source added
343 - hqdn3d filter added
344 - RTP depacketization of QCELP
346 - gradfun filter added
348 - replace the ocv_smooth filter with a more generic ocv filter
349 - Windows Televison (WTV) demuxer
350 - FFmpeg metadata format muxer and demuxer
351 - SubRip (srt) subtitle decoder
352 - floating-point AC-3 encoder added
354 - ffmpeg -copytb option added
356 - Wing Commander IV movies decoder added
358 - Bink version 'b' audio and video decoder
359 - Bitmap Brothers JV playback system
360 - Apple HTTP Live Streaming protocol handler
361 - sndio support for playback and record
362 - Linux framebuffer input device added
363 - Chronomaster DFA decoder
364 - Mobotix MxPEG decoder
365 - AAC encoding via libvo-aacenc
366 - AMR-WB encoding via libvo-amrwbenc
368 - fieldorder video filter added
373 - PB-frame decoding for H.263
374 - deprecated vhook subsystem removed
375 - deprecated old scaler removed
377 - Alpha channel scaler
379 - RTP packetization of H.263
380 - RTP packetization of AMR
381 - RTP depacketization of Vorbis
382 - CorePNG decoding support
383 - Cook multichannel decoding support
384 - introduced avlanguage helpers in libavformat
385 - 8088flex TMV demuxer and decoder
386 - per-stream language-tags extraction in asfdec
387 - V210 decoder and encoder
388 - remaining GPL parts in AC-3 decoder converted to LGPL
390 - SoX native format muxer and demuxer
391 - AMR-NB decoding/encoding, AMR-WB decoding via OpenCORE libraries
393 - Electronic Arts Madcow decoder
394 - DivX (XSUB) subtitle encoder
395 - nonfree libamr support for AMR-NB/WB decoding/encoding removed
396 - experimental AAC encoder
397 - RTP depacketization of ASF and RTSP from WMS servers
398 - RTMP support in libavformat
399 - noX handling for OPT_BOOL X options
401 - IEC-61937 compatible Muxer
403 - Bluray (PGS) subtitle decoder
404 - LPCM support in MPEG-TS (HDMV RID as found on Blu-ray disks)
406 - Core Audio Format demuxer
408 - MD STUDIO audio demuxer
409 - RF64 support in WAV demuxer
410 - MPEG-4 Audio Lossless Coding (ALS) decoder
411 - -formats option split into -formats, -codecs, -bsfs, and -protocols
413 - CDG demuxer and decoder
415 - Auravision Aura 1 and 2 decoders
416 - Deluxe Paint Animation playback system
418 - Adobe Filmstrip muxer and demuxer
419 - RTP depacketization of H.263
420 - Bink demuxer and audio/video decoders
421 - enable symbol versioning by default for linkers that support it
422 - IFF PBM/ILBM bitmap decoder
425 - RTP depacketization of AMR
431 - Kega Game Video (KGV1) decoder
432 - VorbisComment writing for FLAC, Ogg FLAC and Ogg Speex files
433 - RTP depacketization of Theora
434 - HTTP Digest authentication
435 - RTMP/RTMPT/RTMPS/RTMPE/RTMPTE protocol support via librtmp
436 - Psygnosis YOP demuxer and video decoder
437 - spectral extension support in the E-AC-3 decoder
438 - unsharp video filter
439 - RTP hinting in the mov/3gp/mp4 muxer
440 - Dirac in Ogg demuxing
441 - seek to keyframes in Ogg
442 - 4:2:2 and 4:4:4 Theora decoding
443 - 35% faster VP3/Theora decoding
444 - faster AAC decoding
445 - faster H.264 decoding
446 - RealAudio 1.0 (14.4K) encoder
451 - DV50 AKA DVCPRO50 encoder, decoder, muxer and demuxer
452 - TechSmith Camtasia (TSCC) video decoder
453 - IBM Ultimotion (ULTI) video decoder
454 - Sierra Online audio file demuxer and decoder
455 - Apple QuickDraw (qdrw) video decoder
456 - Creative ADPCM audio decoder (16 bits as well as 8 bits schemes)
457 - Electronic Arts Multimedia (WVE/UV2/etc.) file demuxer
458 - Miro VideoXL (VIXL) video decoder
459 - H.261 video encoder
461 - Nullsoft Video (NSV) file demuxer
462 - Shorten audio decoder
464 - Apple Lossless Audio Codec (ALAC) decoder
465 - Winnov WNV1 video decoder
466 - Autodesk Animator Studio Codec (AASC) decoder
467 - Indeo 2 video decoder
468 - Fraps FPS1 video decoder
469 - Snow video encoder/decoder
470 - Sonic audio encoder/decoder
471 - Vorbis audio decoder
472 - Macromedia ADPCM decoder
473 - Duck TrueMotion 2 video decoder
474 - support for decoding FLX and DTA extensions in FLIC files
475 - H.264 custom quantization matrices support
476 - ffserver fixed, it should now be usable again
478 - Real Cooker audio decoder
479 - TrueSpeech audio decoder
480 - WMA2 audio decoder fixed, now all files should play correctly
481 - RealAudio 14.4 and 28.8 decoders fixed
483 - build system improvements
484 - tabs and trailing whitespace removed from the codebase
485 - CamStudio video decoder
486 - AIFF/AIFF-C audio format, encoding and decoding
487 - ADTS AAC file reading and writing
488 - Creative VOC file reading and writing
489 - American Laser Games multimedia (*.mm) playback system
490 - Zip Motion Blocks Video decoder
491 - improved Theora/VP3 decoder
492 - True Audio (TTA) decoder
493 - AVS demuxer and video decoder
495 - Smacker demuxer and decoder
496 - NuppelVideo/MythTV demuxer and RTjpeg decoder
498 - MPEG-2 intra VLC support
499 - MPEG-2 4:2:2 encoder
500 - Flash Screen Video decoder
502 - Chinese AVS decoder
505 - VC-1/WMV3/WMV9 video decoder
508 - VMware video decoder
511 - WavPack lossless audio decoder
512 - Targa (.TGA) picture decoder
513 - Vorbis audio encoder
514 - Delphine Software .cin demuxer/audio and video decoder
515 - Tiertex .seq demuxer/video decoder
517 - TIFF picture encoder and decoder
518 - GIF picture decoder
519 - Intel Music Coder decoder
520 - Zip Motion Blocks Video encoder
522 - Flash Screen Video encoder
523 - Theora encoding via libtheora
526 - GSM-MS encoder and decoder
528 - DXA demuxer and decoder
530 - Gamecube movie (.THP) playback system
531 - Blackfin optimizations
532 - Interplay C93 demuxer and video decoder
533 - Bethsoft VID demuxer and video decoder
536 - V.Flash PTX decoder
537 - RoQ muxer, RoQ audio encoder
538 - Renderware TXD demuxer and decoder
539 - extern C declarations for C++ removed from headers
540 - sws_flags command line option
544 - OS/2 support removed and restored again
547 - additional SPARC (VIS) optimizations
549 - slice-based parallel H.264 decoding
550 - Monkey's Audio demuxer and decoder
551 - AMV audio and video decoder
553 - H.264 PAFF decoding
554 - Nellymoser ASAO decoder
555 - Beam Software SIFF demuxer and decoder
556 - libvorbis Vorbis decoding removed in favor of native decoder
557 - IntraX8 (J-Frame) subdecoder for WMV2 and VC-1
558 - Ogg (Theora, Vorbis and FLAC) muxer
559 - The "device" muxers and demuxers are now in a new libavdevice library
560 - PC Paintbrush PCX decoder
561 - Sun Rasterfile decoder
562 - TechnoTrend PVA demuxer
563 - Linux Media Labs MPEG-4 (LMLM4) demuxer
564 - AVM2 (Flash 9) SWF muxer
565 - QT variant of IMA ADPCM encoder
567 - iPod/iPhone compatible mp4 muxer
569 - MSN TCP Webcam stream demuxer
570 - RL2 demuxer / decoder
573 - non-recursive Makefiles
575 - MAXIS EA XA (.xa) demuxer / decoder
579 - Electronic Arts CMV decoder
580 - Motion Pixels Video decoder
581 - Motion Pixels MVI demuxer
582 - removed animated GIF decoder/demuxer
583 - D-Cinema audio muxer
584 - Electronic Arts TGV decoder
585 - Apple Lossless Audio Codec (ALAC) encoder
587 - floating point PCM encoder/decoder
589 - DV100 AKA DVCPRO HD decoder and demuxer
590 - E-AC-3 support added to AC-3 decoder
591 - Nellymoser ASAO encoder
592 - ASS and SSA demuxer and muxer
593 - liba52 wrapper removed
594 - SVQ3 watermark decoding support
595 - Speex decoding via libspeex
596 - Electronic Arts TGQ decoder
598 - QCELP / PureVoice decoder
600 - hybrid WavPack support
601 - R3D REDCODE demuxer
602 - ALSA support for playback and record
603 - Electronic Arts TQI decoder
604 - OpenJPEG based JPEG 2000 decoder
605 - NC (NC4600) camera file demuxer
606 - Gopher client support
608 - generic metadata API
613 - DV encoder, DV muxer
614 - Microsoft RLE video decoder
615 - Microsoft Video-1 decoder
616 - Apple Animation (RLE) decoder
617 - Apple Graphics (SMC) decoder
618 - Apple Video (RPZA) decoder
620 - Sega FILM (CPK) file demuxer
621 - Westwood multimedia support (VQA & AUD files)
622 - Id Quake II CIN playback support
624 - FLIC playback support
625 - RealVideo 2.0 (RV20) decoder
626 - Duck TrueMotion v1 (DUCK) video decoder
627 - Sierra VMD demuxer and video decoder
628 - MSZH and ZLIB decoder support
632 - rate distortion optimal cbp support
633 - rate distorted optimal ac prediction for MPEG-4
634 - rate distorted optimal lambda->qp support
635 - AAC encoding with libfaac
636 - Sunplus JPEG codec (SP5X) support
637 - use Lagrange multipler instead of QP for ratecontrol
638 - Theora/VP3 decoding support
639 - XA and ADX ADPCM codecs
640 - export MPEG-2 active display area / pan scan
641 - Add support for configuring with IBM XLC
642 - floating point AAN DCT
643 - initial support for zygo video (not complete)
645 - new audio/video parser API
647 - av_read_frame() and av_seek_frame() support
648 - missing last frame fixes
649 - seek by mouse in ffplay
650 - noise reduction of DCT coefficients
651 - H.263 OBMC & 4MV support
652 - H.263 alternative inter vlc support
654 - H.263 slice structured mode
655 - interlaced DCT support for MPEG-2 encoding
656 - stuffing to stay above min_bitrate
657 - MB type & QP visualization
658 - frame stepping for ffplay
659 - interlaced motion estimation
660 - alternate scantable support
661 - SVCD scan offset support
664 - quantizer noise shaping
665 - G.726 ADPCM audio codec
667 - multithreaded/SMP motion estimation
668 - multithreaded/SMP encoding for MPEG-1/MPEG-2/MPEG-4/H.263
669 - multithreaded/SMP decoding for MPEG-2
671 - Metrowerks CodeWarrior suppport
672 - H.263+ custom pcf support
673 - nicer output for 'ffmpeg -formats'
675 - SGI image format, encoding and decoding
676 - H.264 loop filter support
677 - H.264 CABAC support
678 - nicer looking arrows for the motion vector visualization
679 - improved VCD support
680 - audio timestamp drift compensation
681 - MPEG-2 YUV 422/444 support
682 - polyphase kaiser windowed sinc and blackman nuttall windowed sinc audio resample
683 - better image scaling
685 - correctly interleave packets during encoding
686 - VIS optimized motion compensation
687 - intra_dc_precision>0 encoding support
688 - support reuse of motion vectors/MB types/field select values of the source video
689 - more accurate deblock filter
691 - many optimizations and bugfixes
692 - FunCom ISS audio file demuxer and according ADPCM decoding
697 - MPEG-2 video encoding (Michael)
698 - Id RoQ playback subsystem (Mike Melanson and Tim Ferguson)
699 - Wing Commander III Movie (.mve) file playback subsystem (Mike Melanson
701 - Xan DPCM audio decoder (Mario Brito)
702 - Interplay MVE playback subsystem (Mike Melanson)
703 - Duck DK3 and DK4 ADPCM audio decoders (Mike Melanson)
708 - RealAudio 1.0 (14_4) and 2.0 (28_8) native decoders. Author unknown, code from mplayerhq
709 (originally from public domain player for Amiga at http://www.honeypot.net/audio)
710 - current version now also compiles with older GCC (Fabrice)
711 - 4X multimedia playback system including 4xm file demuxer (Mike
712 Melanson), and 4X video and audio codecs (Michael)
713 - Creative YUV (CYUV) decoder (Mike Melanson)
714 - FFV1 codec (our very simple lossless intra only codec, compresses much better
715 than HuffYUV) (Michael)
716 - ASV1 (Asus), H.264, Intel indeo3 codecs have been added (various)
717 - tiny PNG encoder and decoder, tiny GIF decoder, PAM decoder (PPM with
718 alpha support), JPEG YUV colorspace support. (Fabrice Bellard)
719 - ffplay has been replaced with a newer version which uses SDL (optionally)
720 for multiplatform support (Fabrice)
721 - Sorenson Version 3 codec (SVQ3) support has been added (decoding only) - donated
723 - AMR format has been added (Johannes Carlsson)
724 - 3GP support has been added (Johannes Carlsson)
725 - VP3 codec has been added (Mike Melanson)
726 - more MPEG-1/2 fixes
727 - better multiplatform support, MS Visual Studio fixes (various)
728 - AltiVec optimizations (Magnus Damn and others)
729 - SH4 processor support has been added (BERO)
730 - new public interfaces (avcodec_get_pix_fmt) (Roman Shaposhnick)
731 - VOB streaming support (Brian Foley)
732 - better MP3 autodetection (Andriy Rysin)
733 - qpel encoding (Michael)
734 - 4mv+b frames encoding finally fixed (Michael)
735 - chroma ME (Michael)
736 - 5 comparison functions for ME (Michael)
737 - B-frame encoding speedup (Michael)
738 - WMV2 codec (unfinished - Michael)
739 - user specified diamond size for EPZS (Michael)
740 - Playstation STR playback subsystem, still experimental (Mike and Michael)
741 - ASV2 codec (Michael)
742 - CLJR decoder (Alex)
744 .. And lots more new enhancements and fixes.
749 - completely new integer only MPEG audio layer 1/2/3 decoder rewritten
751 - Recoded DCT and motion vector search with gcc (no longer depends on nasm)
752 - fix quantization bug in AC3 encoder
753 - added PCM codecs and format. Corrected WAV/AVI/ASF PCM issues
754 - added prototype ffplay program
755 - added GOB header parsing on H.263/H.263+ decoder (Juanjo)
756 - bug fix on MCBPC tables of H.263 (Juanjo)
757 - bug fix on DC coefficients of H.263 (Juanjo)
758 - added Advanced Prediction Mode on H.263/H.263+ decoder (Juanjo)
759 - now we can decode H.263 streams found in QuickTime files (Juanjo)
760 - now we can decode H.263 streams found in VIVO v1 files(Juanjo)
761 - preliminary RTP "friendly" mode for H.263/H.263+ coding. (Juanjo)
762 - added GOB header for H.263/H.263+ coding on RTP mode (Juanjo)
763 - now H.263 picture size is returned on the first decoded frame (Juanjo)
764 - added first regression tests
765 - added MPEG-2 TS demuxer
766 - new demux API for libav
767 - more accurate and faster IDCT (Michael)
768 - faster and entropy-controlled motion search (Michael)
769 - two pass video encoding (Michael)
770 - new video rate control (Michael)
771 - added MSMPEG4V1, MSMPEGV2 and WMV1 support (Michael)
772 - great performance improvement of video encoders and decoders (Michael)
773 - new and faster bit readers and vlc parsers (Michael)
774 - high quality encoding mode: tries all macroblock/VLC types (Michael)
775 - added DV video decoder
776 - preliminary RTP/RTSP support in ffserver and libavformat
777 - H.263+ AIC decoding/encoding support (Juanjo)
778 - VCD MPEG-PS mode (Juanjo)
779 - PSNR stuff (Juanjo)
780 - simple stats output (Juanjo)
781 - 16-bit and 15-bit RGB/BGR/GBR support (Bisqwit)
786 - some header fixes (Zdenek Kabelac <kabi at informatics.muni.cz>)
787 - many MMX optimizations (Nick Kurshev <nickols_k at mail.ru>)
788 - added configure system (actually a small shell script)
789 - added MPEG audio layer 1/2/3 decoding using LGPL'ed mpglib by
790 Michael Hipp (temporary solution - waiting for integer only
792 - fixed VIDIOCSYNC interrupt
793 - added Intel H.263 decoding support ('I263' AVI fourCC)
794 - added Real Video 1.0 decoding (needs further testing)
795 - simplified image formats again. Added PGM format (=grey
796 pgm). Renamed old PGM to PGMYUV.
797 - fixed msmpeg4 slice issues (tell me if you still find problems)
798 - fixed OpenDivX bugs with newer versions (added VOL header decoding)
799 - added support for MPlayer interface
800 - added macroblock skip optimization
801 - added MJPEG decoder
802 - added mmx/mmxext IDCT from libmpeg2
803 - added pgmyuvpipe, ppm, and ppm_pipe formats (original patch by Celer
804 <celer at shell.scrypt.net>)
805 - added pixel format conversion layer (e.g. for MJPEG or PPM)
806 - added deinterlacing option
808 - MPEG-4 vol header fixes (Jonathan Marsden <snmjbm at pacbell.net>)
809 - ARM optimizations (Lionel Ulmer <lionel.ulmer at free.fr>).
810 - Windows porting of file converter
811 - added MJPEG raw format (input/ouput)
812 - added JPEG image format support (input/output)
817 - fixed some std header definitions (Bjorn Lindgren
818 <bjorn.e.lindgren at telia.com>).
819 - added MPEG demuxer (MPEG-1 and 2 compatible).
821 - added prototype RM demuxer
822 - added AC3 decoding (done with libac3 by Aaron Holtzman)
823 - added decoding codec parameter guessing (.e.g. for MPEG, because the
824 header does not include them)
825 - fixed header generation in MPEG-1, AVI and ASF muxer: wmplayer can now
826 play them (only tested video)
827 - fixed H.263 white bug
828 - fixed phase rounding in img resample filter
829 - add MMX code for polyphase img resample filter
830 - added CPU autodetection
831 - added generic title/author/copyright/comment string handling (ASF and RM
833 - added SWF demux to extract MP3 track (not usable yet because no MP3
835 - added fractional frame rate support
836 - codecs are no longer searched by read_header() (should fix ffserver
842 - BGR24 patch (initial patch by Jeroen Vreeken <pe1rxq at amsat.org>)
843 - fixed raw yuv output
844 - added motion rounding support in MPEG-4
845 - fixed motion bug rounding in MSMPEG4
846 - added B-frame handling in video core
847 - added full MPEG-1 decoding support
848 - added partial (frame only) MPEG-2 support
849 - changed the FOURCC code for H.263 to "U263" to be able to see the
850 +AVI/H.263 file with the UB Video H.263+ decoder. MPlayer works with
851 this +codec ;) (JuanJo).
852 - Halfpel motion estimation after MB type selection (JuanJo)
853 - added pgm and .Y.U.V output format
854 - suppressed 'img:' protocol. Simply use: /tmp/test%d.[pgm|Y] as input or
856 - added pgmpipe I/O format (original patch from Martin Aumueller
857 <lists at reserv.at>, but changed completely since we use a format
858 instead of a protocol)
863 - added H.263/MPEG-4/MSMPEG4 decoding support. MPEG-4 decoding support
864 (for OpenDivX) is almost complete: 8x8 MVs and rounding are
865 missing. MSMPEG4 support is complete.
866 - added prototype MPEG-1 decoder. Only I- and P-frames handled yet (it
867 can decode ffmpeg MPEGs :-)).
868 - added libavcodec API documentation (see apiexample.c).
869 - fixed image polyphase bug (the bottom of some images could be
871 - added support for non clipped motion vectors (decoding only)
872 and image sizes non-multiple of 16
873 - added support for AC prediction (decoding only)
874 - added file overwrite confirmation (can be disabled with -y)
875 - added custom size picture to H.263 using H.263+ (Juanjo)
880 - added MSMPEG4 (aka DivX) compatible encoder. Changed default codec
881 of AVI and ASF to DIV3.
882 - added -me option to set motion estimation method
883 (default=log). suppressed redundant -hq option.
884 - added options -acodec and -vcodec to force a given codec (useful for
887 - improved dct_quantize speed
888 - factorized some motion estimation code
893 - removing grab code from ffserver and moved it to ffmpeg. Added
894 multistream support to ffmpeg.
895 - added timeshifting support for live feeds (option ?date=xxx in the
897 - added high quality image resize code with polyphase filter (need
898 mmx/see optimization). Enable multiple image size support in ffserver.
899 - added multi live feed support in ffserver
900 - suppressed master feature from ffserver (it should be done with an
901 external program which opens the .ffm url and writes it to another
903 - added preliminary support for video stream parsing (WAV and AVI half
904 done). Added proper support for audio/video file conversion in
906 - added preliminary support for video file sending from ffserver
907 - redesigning I/O subsystem: now using URL based input and output
909 - added WAV format support
910 - added "tty user interface" to ffmpeg to stop grabbing gracefully
911 - added MMX/SSE optimizations to SAD (Sums of Absolutes Differences)
912 (Juan J. Sierralta P. a.k.a. "Juanjo" <juanjo at atmlab.utfsm.cl>)
913 - added MMX DCT from mpeg2_movie 1.5 (Juanjo)
914 - added new motion estimation algorithms, log and phods (Juanjo)
915 - changed directories: libav for format handling, libavcodec for
921 - added stereo in MPEG audio encoder
926 - added 'high quality' mode which use motion vectors. It can be used in
927 real time at low resolution.
928 - fixed rounding problems which caused quality problems at high
929 bitrates and large GOP size
932 version 0.3.2: small fixes
938 version 0.3.1: added avi/divx support
941 - added MPEG-4 codec compatible with OpenDivX. It is based on the H.263 codec
942 - added sound for flash format (not tested)
945 version 0.3: initial public release