1 Entries are sorted chronologically from oldest to youngest within each release,
2 releases are sorted from youngest to oldest.
10 - support ID3v2 tags in ASF files
11 - reference-counting for AVFrame and AVPacket data
12 - avconv now fails when input options are used for output file
14 - avconv options -filter_script and -filter_complex_script, which allow a
15 filtergraph description to be read from a file
16 - uniform options syntax across all filters
19 - asetpts filter (same as setpts, but for audio)
20 - trim and atrim filters
21 - avconv -t and -ss (output-only) options are now sample-accurate when
23 - Matroska muxer can now put the index at the beginning of the file.
24 - avconv -deinterlace option removed, the yadif filter should be used instead
25 - Apple Intermediate Codec decoder
26 - Escape 130 video decoder
27 - support for slice multithreading in libavfilter
28 - VC-1 interlaced B-frame support
29 - support for WavPack muxing (raw and in Matroska)
31 - WavPack encoding through libwavpack
32 - Added the -n parameter to avconv
34 - when transcoding with avconv (i.e. not streamcopying), -ss is now accurate
35 even when used as an input option. Previous behavior can be restored with
36 the -noaccurate_seek option.
37 - avconv -t option can now be used for inputs, to limit the duration of
38 data read from an input file
39 - Voxware MetaSound decoder
41 - Error Resilient AAC syntax (ER AAC LC) decoding
42 - Low Delay AAC (ER AAC LD) decoding
43 - mux chapters in ASF files
44 - Opus in Ogg demuxing
45 - Enhanced Low Delay AAC (ER AAC ELD) decoding (no LD SBR support)
47 - HNM version 4 demuxer and video decoder
49 - raw HEVC, HEVC in MOV/MP4, HEVC in Matroska, HEVC in MPEG-TS demuxing
50 - remove avplay -vismv option, which has not worked for a long time
52 - setsar/setdar filters now support variables in ratio expressions
53 - dar variable in the scale filter now returns the actual DAR (i.e. a * sar)
55 - support for decoding through VDPAU in avconv (the -hwaccel option)
56 - remove mp3_header_(de)compress bitstream filters
57 - stereoscopic 3d metadata handling
58 - png standalone parser
59 - WebP encoding via libwebp
62 - Mirillis FIC video decoder
68 - av_basename and av_dirname
69 - adobe and limelight publisher authentication in RTMP
70 - VDPAU hardware acceleration through normal hwaccel
75 - ashowinfo audio filter
76 - 24-bit FLAC encoding
78 - deprecated the avconv -vol option. the volume filter is to be used instead.
79 - multi-channel ALAC encoding up to 7.1
80 - TAK demuxer, parser, and decoder
81 - adaptive frame-level multithreading for H.264
85 - metadata (INFO tag) support in WAV muxer
86 - support for building DLLs using MSVC
87 - remove avserver daemon mode
88 - support building on the Plan 9 operating system
89 - ffv1: support version 1.3
94 - XWD encoder and decoder
95 - Support for fragmentation in the mov/mp4 muxer
96 - ISMV (Smooth Streaming) muxer
97 - CDXL demuxer and decoder
98 - Apple ProRes encoder
99 - Sun Rasterfile Encoder
101 - ID3v2 attached pictures reading and writing
102 - WMA Lossless decoder
104 - RealAudio Lossless decoder
106 - drop support for avconv without libavfilter
107 - add libavresample audio conversion library
108 - audio filters support in libavfilter and avconv
112 - avprobe output is now standard INI or JSON. The old format can still
113 be used with -of old.
114 - Indeo Audio decoder
115 - channelsplit audio filter
116 - RTMPT protocol support
117 - iLBC encoding/decoding via libilbc
118 - Microsoft Screen 1 decoder
120 - audio channel mapping filter
121 - Microsoft ATC Screen decoder
123 - TechSmith Screen Codec 2 decoder
124 - AAC encoding via libfdk-aac
125 - Microsoft Expression Encoder Screen decoder
126 - RTMPS protocol support
127 - RTMPTS protocol support
128 - JPEG 2000 encoding support through OpenJPEG
129 - G.723.1 demuxer and decoder
130 - RTMPE protocol support
131 - RTMPTE protocol support
132 - Canopus Lossless Codec decoder
133 - avconv -shortest option is now per-output file,
134 -pass and -passlogfile are now per-output stream
136 - Microsoft Screen 2 decoder
137 - RTP depacketization of JPEG
138 - Smooth Streaming live segmenter muxer
139 - RTP packetization of JPEG
140 - Opus decoder and encoder using libopus
141 - remove -same_quant, it hasn't worked for years
142 - support for building with MSVC
153 - Automatic thread count based on detection number of (available) CPU cores
154 - Deprecate libpostproc. If desired, the switch --enable-postproc will
155 enable it but it may be removed in a later Libav release.
156 - rv34: frame-level multi-threading
157 - optimized iMDCT transform on x86 using SSE for for mpegaudiodec
163 - Flash Screen Video 2 decoder
164 - ffplay/ffprobe/ffserver renamed to avplay/avprobe/avserver
165 - ffmpeg deprecated, added avconv, which is almost the same for now, except
166 for a few incompatible changes in the options, which will hopefully make them
167 easier to use. The changes are:
168 * The options placement is now strictly enforced! While in theory the
169 options for ffmpeg should be given in [input options] -i INPUT [output
170 options] OUTPUT order, in practice it was possible to give output options
171 before the -i and it mostly worked. Except when it didn't - the behavior was
172 a bit inconsistent. In avconv, it is not possible to mix input and output
173 options. All non-global options are reset after an input or output filename.
174 * All per-file options are now truly per-file - they apply only to the next
175 input or output file and specifying different values for different files
176 will now work properly (notably -ss and -t options).
177 * All per-stream options are now truly per-stream - it is possible to
178 specify which stream(s) should a given option apply to. See the Stream
179 specifiers section in the avconv manual for details.
180 * In ffmpeg some options (like -newvideo/-newaudio/...) are irregular in the
181 sense that they're specified after the output filename instead of before,
182 like all other options. In avconv this irregularity is removed, all options
183 apply to the next input or output file.
184 * -newvideo/-newaudio/-newsubtitle options were removed. Not only were they
185 irregular and highly confusing, they were also redundant. In avconv the -map
186 option will create new streams in the output file and map input streams to
187 them. E.g. avconv -i INPUT -map 0 OUTPUT will create an output stream for
188 each stream in the first input file.
189 * The -map option now has slightly different and more powerful syntax:
190 + Colons (':') are used to separate file index/stream type/stream index
191 instead of dots. Comma (',') is used to separate the sync stream instead
192 of colon.. This is done for consistency with other options.
193 + It's possible to specify stream type. E.g. -map 0:a:2 creates an
194 output stream from the third input audio stream.
195 + Omitting the stream index now maps all the streams of the given type,
196 not just the first. E.g. -map 0:s creates output streams for all the
197 subtitle streams in the first input file.
198 + Since -map can now match multiple streams, negative mappings were
199 introduced. Negative mappings disable some streams from an already
200 defined map. E.g. '-map 0 -map -0:a:1' means 'create output streams for
201 all the stream in the first input file, except for the second audio
203 * There is a new option -c (or -codec) for choosing the decoder/encoder to
204 use, which allows to precisely specify target stream(s) consistently with
205 other options. E.g. -c:v lib264 sets the codec for all video streams, -c:a:0
206 libvorbis sets the codec for the first audio stream and -c copy copies all
207 the streams without reencoding. Old -vcodec/-acodec/-scodec options are now
209 * It is now possible to precisely specify which stream should an AVOption
210 apply to. E.g. -b:v:0 2M sets the bitrate for the first video stream, while
211 -b:a 128k sets the bitrate for all audio streams. Note that the old -ab 128k
212 syntax is deprecated and will stop working soon.
213 * -map_chapters now takes only an input file index and applies to the next
214 output file. This is consistent with how all the other options work.
215 * -map_metadata now takes only an input metadata specifier and applies to
216 the next output file. Output metadata specifier is now part of the option
217 name, similarly to the AVOptions/map/codec feature above.
218 * -metadata can now be used to set metadata on streams and chapters, e.g.
219 -metadata:s:1 language=eng sets the language of the first stream to 'eng'.
220 This made -vlang/-alang/-slang options redundant, so they were removed.
221 * -qscale option now uses stream specifiers and applies to all streams, not
222 just video. I.e. plain -qscale number would now apply to all streams. To get
223 the old behavior, use -qscale:v. Also there is now a shortcut -q for -qscale
224 and -aq is now an alias for -q:a.
225 * -vbsf/-absf/-sbsf options were removed and replaced by a -bsf option which
226 uses stream specifiers. Use -bsf:v/a/s instead of the old options.
227 * -itsscale option now uses stream specifiers, so its argument is only the
229 * -intra option was removed, use -g 0 for the same effect.
230 * -psnr option was removed, use -flags +psnr for the same effect.
231 * -vf option is now an alias to the new -filter option, which uses stream specifiers.
232 * -vframes/-aframes/-dframes options are now aliases to the new -frames option.
233 * -vtag/-atag/-stag options are now aliases to the new -tag option.
235 - Windows Media Image decoder
239 - libcdio-paranoia input device for audio CD grabbing
241 - Apple ProRes decoder
242 - CELT in Ogg demuxing
243 - VC-1 interlaced decoding
244 - lut, lutrgb, and lutyuv filters
247 - Speex encoding via libspeex
248 - 4:2:2 H.264 decoding support
249 - 4:2:2 and 4:4:4 H.264 encoding with libx264
250 - Pulseaudio input device
251 - replacement Indeo 3 decoder
252 - TLS/SSL and HTTPS protocol support
253 - AVOptions API rewritten and documented
254 - most of CODEC_FLAG2_*, some CODEC_FLAG_* and many codec-specific fields in
255 AVCodecContext deprecated. Codec private options should be used instead.
256 - Properly working defaults in libx264 wrapper, support for native presets.
257 - Encrypted OMA files support
258 - Discworld II BMV decoding support
260 - OS X Video Decoder Acceleration (VDA) support
261 - CRI ADX audio format muxer and demuxer
262 - Playstation Portable PMP format demuxer
263 - PCM format support in OMA demuxer
265 - Dxtory capture format decoder
266 - v410 QuickTime uncompressed 4:4:4 10-bit encoder and decoder
268 - Simple segmenting muxer
275 - E-AC-3 audio encoder
276 - ac3enc: add channel coupling support
277 - floating-point sample format support for (E-)AC-3, DCA, AAC, Vorbis decoders
278 - H.264/MPEG frame-level multithreading
279 - av_metadata_* functions renamed to av_dict_* and moved to libavutil
280 - 4:4:4 H.264 decoding support
281 - 10-bit H.264 optimizations for x86
282 - bump libswscale for recently reported ABI break
287 - VP8 frame-level multithreading
288 - NEON optimizations for VP8
289 - removed a lot of deprecated API cruft
290 - FFT and IMDCT optimizations for AVX (Sandy Bridge) processors
292 - SMPTE 302M AES3 audio decoder
293 - ffmpeg no longer quits after the 'q' key is pressed; use 'ctrl+c' instead
294 - 9bit and 10bit per sample support in the H.264 decoder
299 - WebM support in Matroska de/muxer
300 - low overhead Ogg muxing
302 - VP8 de/encoding via libvpx
303 - Demuxer for On2's IVF format
304 - Pictor/PC Paint decoder
306 - libfaad2 wrapper removed
307 - DTS-ES extension (XCh) decoding support
309 - RTSP tunneling over HTTP
310 - RTP depacketization of SVQ3
311 - -strict inofficial replaced by -strict unofficial
312 - ffplay -exitonkeydown and -exitonmousedown options added
313 - native GSM / GSM MS decoder
314 - RTP depacketization of QDM2
315 - ANSI/ASCII art playback system
316 - Lego Mindstorms RSO de/muxer
317 - SubRip subtitle file muxer and demuxer
318 - Chinese AVS encoding via libxavs
319 - ffprobe -show_packets option added
320 - RTP packetization of Theora and Vorbis
321 - RTP depacketization of MP4A-LATM
322 - RTP packetization and depacketization of VP8
324 - Apple HTTP Live Streaming demuxer
327 - G.722 ADPCM audio encoder/decoder
330 - frei0r wrapper filter
331 - change crop filter syntax to width:height:x:y
332 - make the crop filter accept parametric expressions
333 - make ffprobe accept AVFormatContext options
336 - Demuxer for Leitch/Harris' VR native stream format (LXF)
337 - RTP depacketization of the X-QT QuickTime format
338 - SAP (Session Announcement Protocol, RFC 2974) muxer and demuxer
340 - ffmpeg -crop* options removed
341 - transpose filter added
342 - ffmpeg -force_key_frames option added
343 - demuxer for receiving raw rtp:// URLs without an SDP description
344 - single stream LATM/LOAS decoder
345 - setpts filter added
346 - Win64 support for optimized x86 assembly functions
347 - MJPEG/AVI1 to JPEG/JFIF bitstream filter
348 - ASS subtitle encoder and decoder
349 - IEC 61937 encapsulation for E-AC-3, TrueHD, DTS-HD (for HDMI passthrough)
350 - overlay filter added
351 - rename aspect filter to setdar, and pixelaspect to setsar
353 - Mobotix .mxg demuxer
354 - frei0r source added
355 - hqdn3d filter added
356 - RTP depacketization of QCELP
358 - gradfun filter added
360 - replace the ocv_smooth filter with a more generic ocv filter
361 - Windows Televison (WTV) demuxer
362 - FFmpeg metadata format muxer and demuxer
363 - SubRip (srt) subtitle decoder
364 - floating-point AC-3 encoder added
366 - ffmpeg -copytb option added
368 - Wing Commander IV movies decoder added
370 - Bink version 'b' audio and video decoder
371 - Bitmap Brothers JV playback system
372 - Apple HTTP Live Streaming protocol handler
373 - sndio support for playback and record
374 - Linux framebuffer input device added
375 - Chronomaster DFA decoder
376 - Mobotix MxPEG decoder
377 - AAC encoding via libvo-aacenc
378 - AMR-WB encoding via libvo-amrwbenc
380 - fieldorder video filter added
385 - PB-frame decoding for H.263
386 - deprecated vhook subsystem removed
387 - deprecated old scaler removed
389 - Alpha channel scaler
391 - RTP packetization of H.263
392 - RTP packetization of AMR
393 - RTP depacketization of Vorbis
394 - CorePNG decoding support
395 - Cook multichannel decoding support
396 - introduced avlanguage helpers in libavformat
397 - 8088flex TMV demuxer and decoder
398 - per-stream language-tags extraction in asfdec
399 - V210 decoder and encoder
400 - remaining GPL parts in AC-3 decoder converted to LGPL
402 - SoX native format muxer and demuxer
403 - AMR-NB decoding/encoding, AMR-WB decoding via OpenCORE libraries
405 - Electronic Arts Madcow decoder
406 - DivX (XSUB) subtitle encoder
407 - nonfree libamr support for AMR-NB/WB decoding/encoding removed
408 - experimental AAC encoder
409 - RTP depacketization of ASF and RTSP from WMS servers
410 - RTMP support in libavformat
411 - noX handling for OPT_BOOL X options
413 - IEC-61937 compatible Muxer
415 - Bluray (PGS) subtitle decoder
416 - LPCM support in MPEG-TS (HDMV RID as found on Blu-ray disks)
418 - Core Audio Format demuxer
420 - MD STUDIO audio demuxer
421 - RF64 support in WAV demuxer
422 - MPEG-4 Audio Lossless Coding (ALS) decoder
423 - -formats option split into -formats, -codecs, -bsfs, and -protocols
425 - CDG demuxer and decoder
427 - Auravision Aura 1 and 2 decoders
428 - Deluxe Paint Animation playback system
430 - Adobe Filmstrip muxer and demuxer
431 - RTP depacketization of H.263
432 - Bink demuxer and audio/video decoders
433 - enable symbol versioning by default for linkers that support it
434 - IFF PBM/ILBM bitmap decoder
437 - RTP depacketization of AMR
443 - Kega Game Video (KGV1) decoder
444 - VorbisComment writing for FLAC, Ogg FLAC and Ogg Speex files
445 - RTP depacketization of Theora
446 - HTTP Digest authentication
447 - RTMP/RTMPT/RTMPS/RTMPE/RTMPTE protocol support via librtmp
448 - Psygnosis YOP demuxer and video decoder
449 - spectral extension support in the E-AC-3 decoder
450 - unsharp video filter
451 - RTP hinting in the mov/3gp/mp4 muxer
452 - Dirac in Ogg demuxing
453 - seek to keyframes in Ogg
454 - 4:2:2 and 4:4:4 Theora decoding
455 - 35% faster VP3/Theora decoding
456 - faster AAC decoding
457 - faster H.264 decoding
458 - RealAudio 1.0 (14.4K) encoder
463 - DV50 AKA DVCPRO50 encoder, decoder, muxer and demuxer
464 - TechSmith Camtasia (TSCC) video decoder
465 - IBM Ultimotion (ULTI) video decoder
466 - Sierra Online audio file demuxer and decoder
467 - Apple QuickDraw (qdrw) video decoder
468 - Creative ADPCM audio decoder (16 bits as well as 8 bits schemes)
469 - Electronic Arts Multimedia (WVE/UV2/etc.) file demuxer
470 - Miro VideoXL (VIXL) video decoder
471 - H.261 video encoder
473 - Nullsoft Video (NSV) file demuxer
474 - Shorten audio decoder
476 - Apple Lossless Audio Codec (ALAC) decoder
477 - Winnov WNV1 video decoder
478 - Autodesk Animator Studio Codec (AASC) decoder
479 - Indeo 2 video decoder
480 - Fraps FPS1 video decoder
481 - Snow video encoder/decoder
482 - Sonic audio encoder/decoder
483 - Vorbis audio decoder
484 - Macromedia ADPCM decoder
485 - Duck TrueMotion 2 video decoder
486 - support for decoding FLX and DTA extensions in FLIC files
487 - H.264 custom quantization matrices support
488 - ffserver fixed, it should now be usable again
490 - Real Cooker audio decoder
491 - TrueSpeech audio decoder
492 - WMA2 audio decoder fixed, now all files should play correctly
493 - RealAudio 14.4 and 28.8 decoders fixed
495 - build system improvements
496 - tabs and trailing whitespace removed from the codebase
497 - CamStudio video decoder
498 - AIFF/AIFF-C audio format, encoding and decoding
499 - ADTS AAC file reading and writing
500 - Creative VOC file reading and writing
501 - American Laser Games multimedia (*.mm) playback system
502 - Zip Motion Blocks Video decoder
503 - improved Theora/VP3 decoder
504 - True Audio (TTA) decoder
505 - AVS demuxer and video decoder
507 - Smacker demuxer and decoder
508 - NuppelVideo/MythTV demuxer and RTjpeg decoder
510 - MPEG-2 intra VLC support
511 - MPEG-2 4:2:2 encoder
512 - Flash Screen Video decoder
514 - Chinese AVS decoder
517 - VC-1/WMV3/WMV9 video decoder
520 - VMware video decoder
523 - WavPack lossless audio decoder
524 - Targa (.TGA) picture decoder
525 - Vorbis audio encoder
526 - Delphine Software .cin demuxer/audio and video decoder
527 - Tiertex .seq demuxer/video decoder
529 - TIFF picture encoder and decoder
530 - GIF picture decoder
531 - Intel Music Coder decoder
532 - Zip Motion Blocks Video encoder
534 - Flash Screen Video encoder
535 - Theora encoding via libtheora
538 - GSM-MS encoder and decoder
540 - DXA demuxer and decoder
542 - Gamecube movie (.THP) playback system
543 - Blackfin optimizations
544 - Interplay C93 demuxer and video decoder
545 - Bethsoft VID demuxer and video decoder
548 - V.Flash PTX decoder
549 - RoQ muxer, RoQ audio encoder
550 - Renderware TXD demuxer and decoder
551 - extern C declarations for C++ removed from headers
552 - sws_flags command line option
556 - OS/2 support removed and restored again
559 - additional SPARC (VIS) optimizations
561 - slice-based parallel H.264 decoding
562 - Monkey's Audio demuxer and decoder
563 - AMV audio and video decoder
565 - H.264 PAFF decoding
566 - Nellymoser ASAO decoder
567 - Beam Software SIFF demuxer and decoder
568 - libvorbis Vorbis decoding removed in favor of native decoder
569 - IntraX8 (J-Frame) subdecoder for WMV2 and VC-1
570 - Ogg (Theora, Vorbis and FLAC) muxer
571 - The "device" muxers and demuxers are now in a new libavdevice library
572 - PC Paintbrush PCX decoder
573 - Sun Rasterfile decoder
574 - TechnoTrend PVA demuxer
575 - Linux Media Labs MPEG-4 (LMLM4) demuxer
576 - AVM2 (Flash 9) SWF muxer
577 - QT variant of IMA ADPCM encoder
579 - iPod/iPhone compatible mp4 muxer
581 - MSN TCP Webcam stream demuxer
582 - RL2 demuxer / decoder
585 - non-recursive Makefiles
587 - MAXIS EA XA (.xa) demuxer / decoder
591 - Electronic Arts CMV decoder
592 - Motion Pixels Video decoder
593 - Motion Pixels MVI demuxer
594 - removed animated GIF decoder/demuxer
595 - D-Cinema audio muxer
596 - Electronic Arts TGV decoder
597 - Apple Lossless Audio Codec (ALAC) encoder
599 - floating point PCM encoder/decoder
601 - DV100 AKA DVCPRO HD decoder and demuxer
602 - E-AC-3 support added to AC-3 decoder
603 - Nellymoser ASAO encoder
604 - ASS and SSA demuxer and muxer
605 - liba52 wrapper removed
606 - SVQ3 watermark decoding support
607 - Speex decoding via libspeex
608 - Electronic Arts TGQ decoder
610 - QCELP / PureVoice decoder
612 - hybrid WavPack support
613 - R3D REDCODE demuxer
614 - ALSA support for playback and record
615 - Electronic Arts TQI decoder
616 - OpenJPEG based JPEG 2000 decoder
617 - NC (NC4600) camera file demuxer
618 - Gopher client support
620 - generic metadata API
625 - DV encoder, DV muxer
626 - Microsoft RLE video decoder
627 - Microsoft Video-1 decoder
628 - Apple Animation (RLE) decoder
629 - Apple Graphics (SMC) decoder
630 - Apple Video (RPZA) decoder
632 - Sega FILM (CPK) file demuxer
633 - Westwood multimedia support (VQA & AUD files)
634 - Id Quake II CIN playback support
636 - FLIC playback support
637 - RealVideo 2.0 (RV20) decoder
638 - Duck TrueMotion v1 (DUCK) video decoder
639 - Sierra VMD demuxer and video decoder
640 - MSZH and ZLIB decoder support
644 - rate distortion optimal cbp support
645 - rate distorted optimal ac prediction for MPEG-4
646 - rate distorted optimal lambda->qp support
647 - AAC encoding with libfaac
648 - Sunplus JPEG codec (SP5X) support
649 - use Lagrange multipler instead of QP for ratecontrol
650 - Theora/VP3 decoding support
651 - XA and ADX ADPCM codecs
652 - export MPEG-2 active display area / pan scan
653 - Add support for configuring with IBM XLC
654 - floating point AAN DCT
655 - initial support for zygo video (not complete)
657 - new audio/video parser API
659 - av_read_frame() and av_seek_frame() support
660 - missing last frame fixes
661 - seek by mouse in ffplay
662 - noise reduction of DCT coefficients
663 - H.263 OBMC & 4MV support
664 - H.263 alternative inter vlc support
666 - H.263 slice structured mode
667 - interlaced DCT support for MPEG-2 encoding
668 - stuffing to stay above min_bitrate
669 - MB type & QP visualization
670 - frame stepping for ffplay
671 - interlaced motion estimation
672 - alternate scantable support
673 - SVCD scan offset support
676 - quantizer noise shaping
677 - G.726 ADPCM audio codec
679 - multithreaded/SMP motion estimation
680 - multithreaded/SMP encoding for MPEG-1/MPEG-2/MPEG-4/H.263
681 - multithreaded/SMP decoding for MPEG-2
683 - Metrowerks CodeWarrior suppport
684 - H.263+ custom pcf support
685 - nicer output for 'ffmpeg -formats'
687 - SGI image format, encoding and decoding
688 - H.264 loop filter support
689 - H.264 CABAC support
690 - nicer looking arrows for the motion vector visualization
691 - improved VCD support
692 - audio timestamp drift compensation
693 - MPEG-2 YUV 422/444 support
694 - polyphase kaiser windowed sinc and blackman nuttall windowed sinc audio resample
695 - better image scaling
697 - correctly interleave packets during encoding
698 - VIS optimized motion compensation
699 - intra_dc_precision>0 encoding support
700 - support reuse of motion vectors/MB types/field select values of the source video
701 - more accurate deblock filter
703 - many optimizations and bugfixes
704 - FunCom ISS audio file demuxer and according ADPCM decoding
709 - MPEG-2 video encoding (Michael)
710 - Id RoQ playback subsystem (Mike Melanson and Tim Ferguson)
711 - Wing Commander III Movie (.mve) file playback subsystem (Mike Melanson
713 - Xan DPCM audio decoder (Mario Brito)
714 - Interplay MVE playback subsystem (Mike Melanson)
715 - Duck DK3 and DK4 ADPCM audio decoders (Mike Melanson)
720 - RealAudio 1.0 (14_4) and 2.0 (28_8) native decoders. Author unknown, code from mplayerhq
721 (originally from public domain player for Amiga at http://www.honeypot.net/audio)
722 - current version now also compiles with older GCC (Fabrice)
723 - 4X multimedia playback system including 4xm file demuxer (Mike
724 Melanson), and 4X video and audio codecs (Michael)
725 - Creative YUV (CYUV) decoder (Mike Melanson)
726 - FFV1 codec (our very simple lossless intra only codec, compresses much better
727 than HuffYUV) (Michael)
728 - ASV1 (Asus), H.264, Intel indeo3 codecs have been added (various)
729 - tiny PNG encoder and decoder, tiny GIF decoder, PAM decoder (PPM with
730 alpha support), JPEG YUV colorspace support. (Fabrice Bellard)
731 - ffplay has been replaced with a newer version which uses SDL (optionally)
732 for multiplatform support (Fabrice)
733 - Sorenson Version 3 codec (SVQ3) support has been added (decoding only) - donated
735 - AMR format has been added (Johannes Carlsson)
736 - 3GP support has been added (Johannes Carlsson)
737 - VP3 codec has been added (Mike Melanson)
738 - more MPEG-1/2 fixes
739 - better multiplatform support, MS Visual Studio fixes (various)
740 - AltiVec optimizations (Magnus Damn and others)
741 - SH4 processor support has been added (BERO)
742 - new public interfaces (avcodec_get_pix_fmt) (Roman Shaposhnick)
743 - VOB streaming support (Brian Foley)
744 - better MP3 autodetection (Andriy Rysin)
745 - qpel encoding (Michael)
746 - 4mv+b frames encoding finally fixed (Michael)
747 - chroma ME (Michael)
748 - 5 comparison functions for ME (Michael)
749 - B-frame encoding speedup (Michael)
750 - WMV2 codec (unfinished - Michael)
751 - user specified diamond size for EPZS (Michael)
752 - Playstation STR playback subsystem, still experimental (Mike and Michael)
753 - ASV2 codec (Michael)
754 - CLJR decoder (Alex)
756 .. And lots more new enhancements and fixes.
761 - completely new integer only MPEG audio layer 1/2/3 decoder rewritten
763 - Recoded DCT and motion vector search with gcc (no longer depends on nasm)
764 - fix quantization bug in AC3 encoder
765 - added PCM codecs and format. Corrected WAV/AVI/ASF PCM issues
766 - added prototype ffplay program
767 - added GOB header parsing on H.263/H.263+ decoder (Juanjo)
768 - bug fix on MCBPC tables of H.263 (Juanjo)
769 - bug fix on DC coefficients of H.263 (Juanjo)
770 - added Advanced Prediction Mode on H.263/H.263+ decoder (Juanjo)
771 - now we can decode H.263 streams found in QuickTime files (Juanjo)
772 - now we can decode H.263 streams found in VIVO v1 files(Juanjo)
773 - preliminary RTP "friendly" mode for H.263/H.263+ coding. (Juanjo)
774 - added GOB header for H.263/H.263+ coding on RTP mode (Juanjo)
775 - now H.263 picture size is returned on the first decoded frame (Juanjo)
776 - added first regression tests
777 - added MPEG-2 TS demuxer
778 - new demux API for libav
779 - more accurate and faster IDCT (Michael)
780 - faster and entropy-controlled motion search (Michael)
781 - two pass video encoding (Michael)
782 - new video rate control (Michael)
783 - added MSMPEG4V1, MSMPEGV2 and WMV1 support (Michael)
784 - great performance improvement of video encoders and decoders (Michael)
785 - new and faster bit readers and vlc parsers (Michael)
786 - high quality encoding mode: tries all macroblock/VLC types (Michael)
787 - added DV video decoder
788 - preliminary RTP/RTSP support in ffserver and libavformat
789 - H.263+ AIC decoding/encoding support (Juanjo)
790 - VCD MPEG-PS mode (Juanjo)
791 - PSNR stuff (Juanjo)
792 - simple stats output (Juanjo)
793 - 16-bit and 15-bit RGB/BGR/GBR support (Bisqwit)
798 - some header fixes (Zdenek Kabelac <kabi at informatics.muni.cz>)
799 - many MMX optimizations (Nick Kurshev <nickols_k at mail.ru>)
800 - added configure system (actually a small shell script)
801 - added MPEG audio layer 1/2/3 decoding using LGPL'ed mpglib by
802 Michael Hipp (temporary solution - waiting for integer only
804 - fixed VIDIOCSYNC interrupt
805 - added Intel H.263 decoding support ('I263' AVI fourCC)
806 - added Real Video 1.0 decoding (needs further testing)
807 - simplified image formats again. Added PGM format (=grey
808 pgm). Renamed old PGM to PGMYUV.
809 - fixed msmpeg4 slice issues (tell me if you still find problems)
810 - fixed OpenDivX bugs with newer versions (added VOL header decoding)
811 - added support for MPlayer interface
812 - added macroblock skip optimization
813 - added MJPEG decoder
814 - added mmx/mmxext IDCT from libmpeg2
815 - added pgmyuvpipe, ppm, and ppm_pipe formats (original patch by Celer
816 <celer at shell.scrypt.net>)
817 - added pixel format conversion layer (e.g. for MJPEG or PPM)
818 - added deinterlacing option
820 - MPEG-4 vol header fixes (Jonathan Marsden <snmjbm at pacbell.net>)
821 - ARM optimizations (Lionel Ulmer <lionel.ulmer at free.fr>).
822 - Windows porting of file converter
823 - added MJPEG raw format (input/ouput)
824 - added JPEG image format support (input/output)
829 - fixed some std header definitions (Bjorn Lindgren
830 <bjorn.e.lindgren at telia.com>).
831 - added MPEG demuxer (MPEG-1 and 2 compatible).
833 - added prototype RM demuxer
834 - added AC3 decoding (done with libac3 by Aaron Holtzman)
835 - added decoding codec parameter guessing (.e.g. for MPEG, because the
836 header does not include them)
837 - fixed header generation in MPEG-1, AVI and ASF muxer: wmplayer can now
838 play them (only tested video)
839 - fixed H.263 white bug
840 - fixed phase rounding in img resample filter
841 - add MMX code for polyphase img resample filter
842 - added CPU autodetection
843 - added generic title/author/copyright/comment string handling (ASF and RM
845 - added SWF demux to extract MP3 track (not usable yet because no MP3
847 - added fractional frame rate support
848 - codecs are no longer searched by read_header() (should fix ffserver
854 - BGR24 patch (initial patch by Jeroen Vreeken <pe1rxq at amsat.org>)
855 - fixed raw yuv output
856 - added motion rounding support in MPEG-4
857 - fixed motion bug rounding in MSMPEG4
858 - added B-frame handling in video core
859 - added full MPEG-1 decoding support
860 - added partial (frame only) MPEG-2 support
861 - changed the FOURCC code for H.263 to "U263" to be able to see the
862 +AVI/H.263 file with the UB Video H.263+ decoder. MPlayer works with
863 this +codec ;) (JuanJo).
864 - Halfpel motion estimation after MB type selection (JuanJo)
865 - added pgm and .Y.U.V output format
866 - suppressed 'img:' protocol. Simply use: /tmp/test%d.[pgm|Y] as input or
868 - added pgmpipe I/O format (original patch from Martin Aumueller
869 <lists at reserv.at>, but changed completely since we use a format
870 instead of a protocol)
875 - added H.263/MPEG-4/MSMPEG4 decoding support. MPEG-4 decoding support
876 (for OpenDivX) is almost complete: 8x8 MVs and rounding are
877 missing. MSMPEG4 support is complete.
878 - added prototype MPEG-1 decoder. Only I- and P-frames handled yet (it
879 can decode ffmpeg MPEGs :-)).
880 - added libavcodec API documentation (see apiexample.c).
881 - fixed image polyphase bug (the bottom of some images could be
883 - added support for non clipped motion vectors (decoding only)
884 and image sizes non-multiple of 16
885 - added support for AC prediction (decoding only)
886 - added file overwrite confirmation (can be disabled with -y)
887 - added custom size picture to H.263 using H.263+ (Juanjo)
892 - added MSMPEG4 (aka DivX) compatible encoder. Changed default codec
893 of AVI and ASF to DIV3.
894 - added -me option to set motion estimation method
895 (default=log). suppressed redundant -hq option.
896 - added options -acodec and -vcodec to force a given codec (useful for
899 - improved dct_quantize speed
900 - factorized some motion estimation code
905 - removing grab code from ffserver and moved it to ffmpeg. Added
906 multistream support to ffmpeg.
907 - added timeshifting support for live feeds (option ?date=xxx in the
909 - added high quality image resize code with polyphase filter (need
910 mmx/see optimization). Enable multiple image size support in ffserver.
911 - added multi live feed support in ffserver
912 - suppressed master feature from ffserver (it should be done with an
913 external program which opens the .ffm url and writes it to another
915 - added preliminary support for video stream parsing (WAV and AVI half
916 done). Added proper support for audio/video file conversion in
918 - added preliminary support for video file sending from ffserver
919 - redesigning I/O subsystem: now using URL based input and output
921 - added WAV format support
922 - added "tty user interface" to ffmpeg to stop grabbing gracefully
923 - added MMX/SSE optimizations to SAD (Sums of Absolutes Differences)
924 (Juan J. Sierralta P. a.k.a. "Juanjo" <juanjo at atmlab.utfsm.cl>)
925 - added MMX DCT from mpeg2_movie 1.5 (Juanjo)
926 - added new motion estimation algorithms, log and phods (Juanjo)
927 - changed directories: libav for format handling, libavcodec for
933 - added stereo in MPEG audio encoder
938 - added 'high quality' mode which use motion vectors. It can be used in
939 real time at low resolution.
940 - fixed rounding problems which caused quality problems at high
941 bitrates and large GOP size
944 version 0.3.2: small fixes
950 version 0.3.1: added avi/divx support
953 - added MPEG-4 codec compatible with OpenDivX. It is based on the H.263 codec
954 - added sound for flash format (not tested)
957 version 0.3: initial public release