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 - 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
15 - asetpts filter (same as setpts, but for audio)
16 - 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
53 - stereoscopic 3d metadata handling
54 - png standalone parser
55 - WebP encoding via libwebp
58 - Mirillis FIC video decoder
64 - av_basename and av_dirname
65 - adobe and limelight publisher authentication in RTMP
66 - VDPAU hardware acceleration through normal hwaccel
71 - ashowinfo audio filter
72 - 24-bit FLAC encoding
74 - deprecated the avconv -vol option. the volume filter is to be used instead.
75 - multi-channel ALAC encoding up to 7.1
76 - TAK demuxer, parser, and decoder
77 - adaptive frame-level multithreading for H.264
81 - metadata (INFO tag) support in WAV muxer
82 - support for building DLLs using MSVC
83 - remove avserver daemon mode
84 - support building on the Plan 9 operating system
85 - ffv1: support version 1.3
90 - XWD encoder and decoder
91 - Support for fragmentation in the mov/mp4 muxer
92 - ISMV (Smooth Streaming) muxer
93 - CDXL demuxer and decoder
94 - Apple ProRes encoder
95 - Sun Rasterfile Encoder
97 - ID3v2 attached pictures reading and writing
98 - WMA Lossless decoder
100 - RealAudio Lossless decoder
102 - drop support for avconv without libavfilter
103 - add libavresample audio conversion library
104 - audio filters support in libavfilter and avconv
108 - avprobe output is now standard INI or JSON. The old format can still
109 be used with -of old.
110 - Indeo Audio decoder
111 - channelsplit audio filter
112 - RTMPT protocol support
113 - iLBC encoding/decoding via libilbc
114 - Microsoft Screen 1 decoder
116 - audio channel mapping filter
117 - Microsoft ATC Screen decoder
119 - TechSmith Screen Codec 2 decoder
120 - AAC encoding via libfdk-aac
121 - Microsoft Expression Encoder Screen decoder
122 - RTMPS protocol support
123 - RTMPTS protocol support
124 - JPEG 2000 encoding support through OpenJPEG
125 - G.723.1 demuxer and decoder
126 - RTMPE protocol support
127 - RTMPTE protocol support
128 - Canopus Lossless Codec decoder
129 - avconv -shortest option is now per-output file,
130 -pass and -passlogfile are now per-output stream
132 - Microsoft Screen 2 decoder
133 - RTP depacketization of JPEG
134 - Smooth Streaming live segmenter muxer
135 - RTP packetization of JPEG
136 - Opus decoder and encoder using libopus
137 - remove -same_quant, it hasn't worked for years
138 - support for building with MSVC
149 - Automatic thread count based on detection number of (available) CPU cores
150 - Deprecate libpostproc. If desired, the switch --enable-postproc will
151 enable it but it may be removed in a later Libav release.
152 - rv34: frame-level multi-threading
153 - optimized iMDCT transform on x86 using SSE for for mpegaudiodec
159 - Flash Screen Video 2 decoder
160 - ffplay/ffprobe/ffserver renamed to avplay/avprobe/avserver
161 - ffmpeg deprecated, added avconv, which is almost the same for now, except
162 for a few incompatible changes in the options, which will hopefully make them
163 easier to use. The changes are:
164 * The options placement is now strictly enforced! While in theory the
165 options for ffmpeg should be given in [input options] -i INPUT [output
166 options] OUTPUT order, in practice it was possible to give output options
167 before the -i and it mostly worked. Except when it didn't - the behavior was
168 a bit inconsistent. In avconv, it is not possible to mix input and output
169 options. All non-global options are reset after an input or output filename.
170 * All per-file options are now truly per-file - they apply only to the next
171 input or output file and specifying different values for different files
172 will now work properly (notably -ss and -t options).
173 * All per-stream options are now truly per-stream - it is possible to
174 specify which stream(s) should a given option apply to. See the Stream
175 specifiers section in the avconv manual for details.
176 * In ffmpeg some options (like -newvideo/-newaudio/...) are irregular in the
177 sense that they're specified after the output filename instead of before,
178 like all other options. In avconv this irregularity is removed, all options
179 apply to the next input or output file.
180 * -newvideo/-newaudio/-newsubtitle options were removed. Not only were they
181 irregular and highly confusing, they were also redundant. In avconv the -map
182 option will create new streams in the output file and map input streams to
183 them. E.g. avconv -i INPUT -map 0 OUTPUT will create an output stream for
184 each stream in the first input file.
185 * The -map option now has slightly different and more powerful syntax:
186 + Colons (':') are used to separate file index/stream type/stream index
187 instead of dots. Comma (',') is used to separate the sync stream instead
188 of colon.. This is done for consistency with other options.
189 + It's possible to specify stream type. E.g. -map 0:a:2 creates an
190 output stream from the third input audio stream.
191 + Omitting the stream index now maps all the streams of the given type,
192 not just the first. E.g. -map 0:s creates output streams for all the
193 subtitle streams in the first input file.
194 + Since -map can now match multiple streams, negative mappings were
195 introduced. Negative mappings disable some streams from an already
196 defined map. E.g. '-map 0 -map -0:a:1' means 'create output streams for
197 all the stream in the first input file, except for the second audio
199 * There is a new option -c (or -codec) for choosing the decoder/encoder to
200 use, which allows to precisely specify target stream(s) consistently with
201 other options. E.g. -c:v lib264 sets the codec for all video streams, -c:a:0
202 libvorbis sets the codec for the first audio stream and -c copy copies all
203 the streams without reencoding. Old -vcodec/-acodec/-scodec options are now
205 * It is now possible to precisely specify which stream should an AVOption
206 apply to. E.g. -b:v:0 2M sets the bitrate for the first video stream, while
207 -b:a 128k sets the bitrate for all audio streams. Note that the old -ab 128k
208 syntax is deprecated and will stop working soon.
209 * -map_chapters now takes only an input file index and applies to the next
210 output file. This is consistent with how all the other options work.
211 * -map_metadata now takes only an input metadata specifier and applies to
212 the next output file. Output metadata specifier is now part of the option
213 name, similarly to the AVOptions/map/codec feature above.
214 * -metadata can now be used to set metadata on streams and chapters, e.g.
215 -metadata:s:1 language=eng sets the language of the first stream to 'eng'.
216 This made -vlang/-alang/-slang options redundant, so they were removed.
217 * -qscale option now uses stream specifiers and applies to all streams, not
218 just video. I.e. plain -qscale number would now apply to all streams. To get
219 the old behavior, use -qscale:v. Also there is now a shortcut -q for -qscale
220 and -aq is now an alias for -q:a.
221 * -vbsf/-absf/-sbsf options were removed and replaced by a -bsf option which
222 uses stream specifiers. Use -bsf:v/a/s instead of the old options.
223 * -itsscale option now uses stream specifiers, so its argument is only the
225 * -intra option was removed, use -g 0 for the same effect.
226 * -psnr option was removed, use -flags +psnr for the same effect.
227 * -vf option is now an alias to the new -filter option, which uses stream specifiers.
228 * -vframes/-aframes/-dframes options are now aliases to the new -frames option.
229 * -vtag/-atag/-stag options are now aliases to the new -tag option.
231 - Windows Media Image decoder
235 - libcdio-paranoia input device for audio CD grabbing
237 - Apple ProRes decoder
238 - CELT in Ogg demuxing
239 - VC-1 interlaced decoding
240 - lut, lutrgb, and lutyuv filters
243 - Speex encoding via libspeex
244 - 4:2:2 H.264 decoding support
245 - 4:2:2 and 4:4:4 H.264 encoding with libx264
246 - Pulseaudio input device
247 - replacement Indeo 3 decoder
248 - TLS/SSL and HTTPS protocol support
249 - AVOptions API rewritten and documented
250 - most of CODEC_FLAG2_*, some CODEC_FLAG_* and many codec-specific fields in
251 AVCodecContext deprecated. Codec private options should be used instead.
252 - Properly working defaults in libx264 wrapper, support for native presets.
253 - Encrypted OMA files support
254 - Discworld II BMV decoding support
256 - OS X Video Decoder Acceleration (VDA) support
257 - CRI ADX audio format muxer and demuxer
258 - Playstation Portable PMP format demuxer
259 - PCM format support in OMA demuxer
261 - Dxtory capture format decoder
262 - v410 QuickTime uncompressed 4:4:4 10-bit encoder and decoder
264 - Simple segmenting muxer
271 - E-AC-3 audio encoder
272 - ac3enc: add channel coupling support
273 - floating-point sample format support for (E-)AC-3, DCA, AAC, Vorbis decoders
274 - H.264/MPEG frame-level multithreading
275 - av_metadata_* functions renamed to av_dict_* and moved to libavutil
276 - 4:4:4 H.264 decoding support
277 - 10-bit H.264 optimizations for x86
278 - bump libswscale for recently reported ABI break
283 - VP8 frame-level multithreading
284 - NEON optimizations for VP8
285 - removed a lot of deprecated API cruft
286 - FFT and IMDCT optimizations for AVX (Sandy Bridge) processors
288 - SMPTE 302M AES3 audio decoder
289 - ffmpeg no longer quits after the 'q' key is pressed; use 'ctrl+c' instead
290 - 9bit and 10bit per sample support in the H.264 decoder
295 - WebM support in Matroska de/muxer
296 - low overhead Ogg muxing
298 - VP8 de/encoding via libvpx
299 - Demuxer for On2's IVF format
300 - Pictor/PC Paint decoder
302 - libfaad2 wrapper removed
303 - DTS-ES extension (XCh) decoding support
305 - RTSP tunneling over HTTP
306 - RTP depacketization of SVQ3
307 - -strict inofficial replaced by -strict unofficial
308 - ffplay -exitonkeydown and -exitonmousedown options added
309 - native GSM / GSM MS decoder
310 - RTP depacketization of QDM2
311 - ANSI/ASCII art playback system
312 - Lego Mindstorms RSO de/muxer
313 - SubRip subtitle file muxer and demuxer
314 - Chinese AVS encoding via libxavs
315 - ffprobe -show_packets option added
316 - RTP packetization of Theora and Vorbis
317 - RTP depacketization of MP4A-LATM
318 - RTP packetization and depacketization of VP8
320 - Apple HTTP Live Streaming demuxer
323 - G.722 ADPCM audio encoder/decoder
326 - frei0r wrapper filter
327 - change crop filter syntax to width:height:x:y
328 - make the crop filter accept parametric expressions
329 - make ffprobe accept AVFormatContext options
332 - Demuxer for Leitch/Harris' VR native stream format (LXF)
333 - RTP depacketization of the X-QT QuickTime format
334 - SAP (Session Announcement Protocol, RFC 2974) muxer and demuxer
336 - ffmpeg -crop* options removed
337 - transpose filter added
338 - ffmpeg -force_key_frames option added
339 - demuxer for receiving raw rtp:// URLs without an SDP description
340 - single stream LATM/LOAS decoder
341 - setpts filter added
342 - Win64 support for optimized x86 assembly functions
343 - MJPEG/AVI1 to JPEG/JFIF bitstream filter
344 - ASS subtitle encoder and decoder
345 - IEC 61937 encapsulation for E-AC-3, TrueHD, DTS-HD (for HDMI passthrough)
346 - overlay filter added
347 - rename aspect filter to setdar, and pixelaspect to setsar
349 - Mobotix .mxg demuxer
350 - frei0r source added
351 - hqdn3d filter added
352 - RTP depacketization of QCELP
354 - gradfun filter added
356 - replace the ocv_smooth filter with a more generic ocv filter
357 - Windows Televison (WTV) demuxer
358 - FFmpeg metadata format muxer and demuxer
359 - SubRip (srt) subtitle decoder
360 - floating-point AC-3 encoder added
362 - ffmpeg -copytb option added
364 - Wing Commander IV movies decoder added
366 - Bink version 'b' audio and video decoder
367 - Bitmap Brothers JV playback system
368 - Apple HTTP Live Streaming protocol handler
369 - sndio support for playback and record
370 - Linux framebuffer input device added
371 - Chronomaster DFA decoder
372 - Mobotix MxPEG decoder
373 - AAC encoding via libvo-aacenc
374 - AMR-WB encoding via libvo-amrwbenc
376 - fieldorder video filter added
381 - PB-frame decoding for H.263
382 - deprecated vhook subsystem removed
383 - deprecated old scaler removed
385 - Alpha channel scaler
387 - RTP packetization of H.263
388 - RTP packetization of AMR
389 - RTP depacketization of Vorbis
390 - CorePNG decoding support
391 - Cook multichannel decoding support
392 - introduced avlanguage helpers in libavformat
393 - 8088flex TMV demuxer and decoder
394 - per-stream language-tags extraction in asfdec
395 - V210 decoder and encoder
396 - remaining GPL parts in AC-3 decoder converted to LGPL
398 - SoX native format muxer and demuxer
399 - AMR-NB decoding/encoding, AMR-WB decoding via OpenCORE libraries
401 - Electronic Arts Madcow decoder
402 - DivX (XSUB) subtitle encoder
403 - nonfree libamr support for AMR-NB/WB decoding/encoding removed
404 - experimental AAC encoder
405 - RTP depacketization of ASF and RTSP from WMS servers
406 - RTMP support in libavformat
407 - noX handling for OPT_BOOL X options
409 - IEC-61937 compatible Muxer
411 - Bluray (PGS) subtitle decoder
412 - LPCM support in MPEG-TS (HDMV RID as found on Blu-ray disks)
414 - Core Audio Format demuxer
416 - MD STUDIO audio demuxer
417 - RF64 support in WAV demuxer
418 - MPEG-4 Audio Lossless Coding (ALS) decoder
419 - -formats option split into -formats, -codecs, -bsfs, and -protocols
421 - CDG demuxer and decoder
423 - Auravision Aura 1 and 2 decoders
424 - Deluxe Paint Animation playback system
426 - Adobe Filmstrip muxer and demuxer
427 - RTP depacketization of H.263
428 - Bink demuxer and audio/video decoders
429 - enable symbol versioning by default for linkers that support it
430 - IFF PBM/ILBM bitmap decoder
433 - RTP depacketization of AMR
439 - Kega Game Video (KGV1) decoder
440 - VorbisComment writing for FLAC, Ogg FLAC and Ogg Speex files
441 - RTP depacketization of Theora
442 - HTTP Digest authentication
443 - RTMP/RTMPT/RTMPS/RTMPE/RTMPTE protocol support via librtmp
444 - Psygnosis YOP demuxer and video decoder
445 - spectral extension support in the E-AC-3 decoder
446 - unsharp video filter
447 - RTP hinting in the mov/3gp/mp4 muxer
448 - Dirac in Ogg demuxing
449 - seek to keyframes in Ogg
450 - 4:2:2 and 4:4:4 Theora decoding
451 - 35% faster VP3/Theora decoding
452 - faster AAC decoding
453 - faster H.264 decoding
454 - RealAudio 1.0 (14.4K) encoder
459 - DV50 AKA DVCPRO50 encoder, decoder, muxer and demuxer
460 - TechSmith Camtasia (TSCC) video decoder
461 - IBM Ultimotion (ULTI) video decoder
462 - Sierra Online audio file demuxer and decoder
463 - Apple QuickDraw (qdrw) video decoder
464 - Creative ADPCM audio decoder (16 bits as well as 8 bits schemes)
465 - Electronic Arts Multimedia (WVE/UV2/etc.) file demuxer
466 - Miro VideoXL (VIXL) video decoder
467 - H.261 video encoder
469 - Nullsoft Video (NSV) file demuxer
470 - Shorten audio decoder
472 - Apple Lossless Audio Codec (ALAC) decoder
473 - Winnov WNV1 video decoder
474 - Autodesk Animator Studio Codec (AASC) decoder
475 - Indeo 2 video decoder
476 - Fraps FPS1 video decoder
477 - Snow video encoder/decoder
478 - Sonic audio encoder/decoder
479 - Vorbis audio decoder
480 - Macromedia ADPCM decoder
481 - Duck TrueMotion 2 video decoder
482 - support for decoding FLX and DTA extensions in FLIC files
483 - H.264 custom quantization matrices support
484 - ffserver fixed, it should now be usable again
486 - Real Cooker audio decoder
487 - TrueSpeech audio decoder
488 - WMA2 audio decoder fixed, now all files should play correctly
489 - RealAudio 14.4 and 28.8 decoders fixed
491 - build system improvements
492 - tabs and trailing whitespace removed from the codebase
493 - CamStudio video decoder
494 - AIFF/AIFF-C audio format, encoding and decoding
495 - ADTS AAC file reading and writing
496 - Creative VOC file reading and writing
497 - American Laser Games multimedia (*.mm) playback system
498 - Zip Motion Blocks Video decoder
499 - improved Theora/VP3 decoder
500 - True Audio (TTA) decoder
501 - AVS demuxer and video decoder
503 - Smacker demuxer and decoder
504 - NuppelVideo/MythTV demuxer and RTjpeg decoder
506 - MPEG-2 intra VLC support
507 - MPEG-2 4:2:2 encoder
508 - Flash Screen Video decoder
510 - Chinese AVS decoder
513 - VC-1/WMV3/WMV9 video decoder
516 - VMware video decoder
519 - WavPack lossless audio decoder
520 - Targa (.TGA) picture decoder
521 - Vorbis audio encoder
522 - Delphine Software .cin demuxer/audio and video decoder
523 - Tiertex .seq demuxer/video decoder
525 - TIFF picture encoder and decoder
526 - GIF picture decoder
527 - Intel Music Coder decoder
528 - Zip Motion Blocks Video encoder
530 - Flash Screen Video encoder
531 - Theora encoding via libtheora
534 - GSM-MS encoder and decoder
536 - DXA demuxer and decoder
538 - Gamecube movie (.THP) playback system
539 - Blackfin optimizations
540 - Interplay C93 demuxer and video decoder
541 - Bethsoft VID demuxer and video decoder
544 - V.Flash PTX decoder
545 - RoQ muxer, RoQ audio encoder
546 - Renderware TXD demuxer and decoder
547 - extern C declarations for C++ removed from headers
548 - sws_flags command line option
552 - OS/2 support removed and restored again
555 - additional SPARC (VIS) optimizations
557 - slice-based parallel H.264 decoding
558 - Monkey's Audio demuxer and decoder
559 - AMV audio and video decoder
561 - H.264 PAFF decoding
562 - Nellymoser ASAO decoder
563 - Beam Software SIFF demuxer and decoder
564 - libvorbis Vorbis decoding removed in favor of native decoder
565 - IntraX8 (J-Frame) subdecoder for WMV2 and VC-1
566 - Ogg (Theora, Vorbis and FLAC) muxer
567 - The "device" muxers and demuxers are now in a new libavdevice library
568 - PC Paintbrush PCX decoder
569 - Sun Rasterfile decoder
570 - TechnoTrend PVA demuxer
571 - Linux Media Labs MPEG-4 (LMLM4) demuxer
572 - AVM2 (Flash 9) SWF muxer
573 - QT variant of IMA ADPCM encoder
575 - iPod/iPhone compatible mp4 muxer
577 - MSN TCP Webcam stream demuxer
578 - RL2 demuxer / decoder
581 - non-recursive Makefiles
583 - MAXIS EA XA (.xa) demuxer / decoder
587 - Electronic Arts CMV decoder
588 - Motion Pixels Video decoder
589 - Motion Pixels MVI demuxer
590 - removed animated GIF decoder/demuxer
591 - D-Cinema audio muxer
592 - Electronic Arts TGV decoder
593 - Apple Lossless Audio Codec (ALAC) encoder
595 - floating point PCM encoder/decoder
597 - DV100 AKA DVCPRO HD decoder and demuxer
598 - E-AC-3 support added to AC-3 decoder
599 - Nellymoser ASAO encoder
600 - ASS and SSA demuxer and muxer
601 - liba52 wrapper removed
602 - SVQ3 watermark decoding support
603 - Speex decoding via libspeex
604 - Electronic Arts TGQ decoder
606 - QCELP / PureVoice decoder
608 - hybrid WavPack support
609 - R3D REDCODE demuxer
610 - ALSA support for playback and record
611 - Electronic Arts TQI decoder
612 - OpenJPEG based JPEG 2000 decoder
613 - NC (NC4600) camera file demuxer
614 - Gopher client support
616 - generic metadata API
621 - DV encoder, DV muxer
622 - Microsoft RLE video decoder
623 - Microsoft Video-1 decoder
624 - Apple Animation (RLE) decoder
625 - Apple Graphics (SMC) decoder
626 - Apple Video (RPZA) decoder
628 - Sega FILM (CPK) file demuxer
629 - Westwood multimedia support (VQA & AUD files)
630 - Id Quake II CIN playback support
632 - FLIC playback support
633 - RealVideo 2.0 (RV20) decoder
634 - Duck TrueMotion v1 (DUCK) video decoder
635 - Sierra VMD demuxer and video decoder
636 - MSZH and ZLIB decoder support
640 - rate distortion optimal cbp support
641 - rate distorted optimal ac prediction for MPEG-4
642 - rate distorted optimal lambda->qp support
643 - AAC encoding with libfaac
644 - Sunplus JPEG codec (SP5X) support
645 - use Lagrange multipler instead of QP for ratecontrol
646 - Theora/VP3 decoding support
647 - XA and ADX ADPCM codecs
648 - export MPEG-2 active display area / pan scan
649 - Add support for configuring with IBM XLC
650 - floating point AAN DCT
651 - initial support for zygo video (not complete)
653 - new audio/video parser API
655 - av_read_frame() and av_seek_frame() support
656 - missing last frame fixes
657 - seek by mouse in ffplay
658 - noise reduction of DCT coefficients
659 - H.263 OBMC & 4MV support
660 - H.263 alternative inter vlc support
662 - H.263 slice structured mode
663 - interlaced DCT support for MPEG-2 encoding
664 - stuffing to stay above min_bitrate
665 - MB type & QP visualization
666 - frame stepping for ffplay
667 - interlaced motion estimation
668 - alternate scantable support
669 - SVCD scan offset support
672 - quantizer noise shaping
673 - G.726 ADPCM audio codec
675 - multithreaded/SMP motion estimation
676 - multithreaded/SMP encoding for MPEG-1/MPEG-2/MPEG-4/H.263
677 - multithreaded/SMP decoding for MPEG-2
679 - Metrowerks CodeWarrior suppport
680 - H.263+ custom pcf support
681 - nicer output for 'ffmpeg -formats'
683 - SGI image format, encoding and decoding
684 - H.264 loop filter support
685 - H.264 CABAC support
686 - nicer looking arrows for the motion vector visualization
687 - improved VCD support
688 - audio timestamp drift compensation
689 - MPEG-2 YUV 422/444 support
690 - polyphase kaiser windowed sinc and blackman nuttall windowed sinc audio resample
691 - better image scaling
693 - correctly interleave packets during encoding
694 - VIS optimized motion compensation
695 - intra_dc_precision>0 encoding support
696 - support reuse of motion vectors/MB types/field select values of the source video
697 - more accurate deblock filter
699 - many optimizations and bugfixes
700 - FunCom ISS audio file demuxer and according ADPCM decoding
705 - MPEG-2 video encoding (Michael)
706 - Id RoQ playback subsystem (Mike Melanson and Tim Ferguson)
707 - Wing Commander III Movie (.mve) file playback subsystem (Mike Melanson
709 - Xan DPCM audio decoder (Mario Brito)
710 - Interplay MVE playback subsystem (Mike Melanson)
711 - Duck DK3 and DK4 ADPCM audio decoders (Mike Melanson)
716 - RealAudio 1.0 (14_4) and 2.0 (28_8) native decoders. Author unknown, code from mplayerhq
717 (originally from public domain player for Amiga at http://www.honeypot.net/audio)
718 - current version now also compiles with older GCC (Fabrice)
719 - 4X multimedia playback system including 4xm file demuxer (Mike
720 Melanson), and 4X video and audio codecs (Michael)
721 - Creative YUV (CYUV) decoder (Mike Melanson)
722 - FFV1 codec (our very simple lossless intra only codec, compresses much better
723 than HuffYUV) (Michael)
724 - ASV1 (Asus), H.264, Intel indeo3 codecs have been added (various)
725 - tiny PNG encoder and decoder, tiny GIF decoder, PAM decoder (PPM with
726 alpha support), JPEG YUV colorspace support. (Fabrice Bellard)
727 - ffplay has been replaced with a newer version which uses SDL (optionally)
728 for multiplatform support (Fabrice)
729 - Sorenson Version 3 codec (SVQ3) support has been added (decoding only) - donated
731 - AMR format has been added (Johannes Carlsson)
732 - 3GP support has been added (Johannes Carlsson)
733 - VP3 codec has been added (Mike Melanson)
734 - more MPEG-1/2 fixes
735 - better multiplatform support, MS Visual Studio fixes (various)
736 - AltiVec optimizations (Magnus Damn and others)
737 - SH4 processor support has been added (BERO)
738 - new public interfaces (avcodec_get_pix_fmt) (Roman Shaposhnick)
739 - VOB streaming support (Brian Foley)
740 - better MP3 autodetection (Andriy Rysin)
741 - qpel encoding (Michael)
742 - 4mv+b frames encoding finally fixed (Michael)
743 - chroma ME (Michael)
744 - 5 comparison functions for ME (Michael)
745 - B-frame encoding speedup (Michael)
746 - WMV2 codec (unfinished - Michael)
747 - user specified diamond size for EPZS (Michael)
748 - Playstation STR playback subsystem, still experimental (Mike and Michael)
749 - ASV2 codec (Michael)
750 - CLJR decoder (Alex)
752 .. And lots more new enhancements and fixes.
757 - completely new integer only MPEG audio layer 1/2/3 decoder rewritten
759 - Recoded DCT and motion vector search with gcc (no longer depends on nasm)
760 - fix quantization bug in AC3 encoder
761 - added PCM codecs and format. Corrected WAV/AVI/ASF PCM issues
762 - added prototype ffplay program
763 - added GOB header parsing on H.263/H.263+ decoder (Juanjo)
764 - bug fix on MCBPC tables of H.263 (Juanjo)
765 - bug fix on DC coefficients of H.263 (Juanjo)
766 - added Advanced Prediction Mode on H.263/H.263+ decoder (Juanjo)
767 - now we can decode H.263 streams found in QuickTime files (Juanjo)
768 - now we can decode H.263 streams found in VIVO v1 files(Juanjo)
769 - preliminary RTP "friendly" mode for H.263/H.263+ coding. (Juanjo)
770 - added GOB header for H.263/H.263+ coding on RTP mode (Juanjo)
771 - now H.263 picture size is returned on the first decoded frame (Juanjo)
772 - added first regression tests
773 - added MPEG-2 TS demuxer
774 - new demux API for libav
775 - more accurate and faster IDCT (Michael)
776 - faster and entropy-controlled motion search (Michael)
777 - two pass video encoding (Michael)
778 - new video rate control (Michael)
779 - added MSMPEG4V1, MSMPEGV2 and WMV1 support (Michael)
780 - great performance improvement of video encoders and decoders (Michael)
781 - new and faster bit readers and vlc parsers (Michael)
782 - high quality encoding mode: tries all macroblock/VLC types (Michael)
783 - added DV video decoder
784 - preliminary RTP/RTSP support in ffserver and libavformat
785 - H.263+ AIC decoding/encoding support (Juanjo)
786 - VCD MPEG-PS mode (Juanjo)
787 - PSNR stuff (Juanjo)
788 - simple stats output (Juanjo)
789 - 16-bit and 15-bit RGB/BGR/GBR support (Bisqwit)
794 - some header fixes (Zdenek Kabelac <kabi at informatics.muni.cz>)
795 - many MMX optimizations (Nick Kurshev <nickols_k at mail.ru>)
796 - added configure system (actually a small shell script)
797 - added MPEG audio layer 1/2/3 decoding using LGPL'ed mpglib by
798 Michael Hipp (temporary solution - waiting for integer only
800 - fixed VIDIOCSYNC interrupt
801 - added Intel H.263 decoding support ('I263' AVI fourCC)
802 - added Real Video 1.0 decoding (needs further testing)
803 - simplified image formats again. Added PGM format (=grey
804 pgm). Renamed old PGM to PGMYUV.
805 - fixed msmpeg4 slice issues (tell me if you still find problems)
806 - fixed OpenDivX bugs with newer versions (added VOL header decoding)
807 - added support for MPlayer interface
808 - added macroblock skip optimization
809 - added MJPEG decoder
810 - added mmx/mmxext IDCT from libmpeg2
811 - added pgmyuvpipe, ppm, and ppm_pipe formats (original patch by Celer
812 <celer at shell.scrypt.net>)
813 - added pixel format conversion layer (e.g. for MJPEG or PPM)
814 - added deinterlacing option
816 - MPEG-4 vol header fixes (Jonathan Marsden <snmjbm at pacbell.net>)
817 - ARM optimizations (Lionel Ulmer <lionel.ulmer at free.fr>).
818 - Windows porting of file converter
819 - added MJPEG raw format (input/ouput)
820 - added JPEG image format support (input/output)
825 - fixed some std header definitions (Bjorn Lindgren
826 <bjorn.e.lindgren at telia.com>).
827 - added MPEG demuxer (MPEG-1 and 2 compatible).
829 - added prototype RM demuxer
830 - added AC3 decoding (done with libac3 by Aaron Holtzman)
831 - added decoding codec parameter guessing (.e.g. for MPEG, because the
832 header does not include them)
833 - fixed header generation in MPEG-1, AVI and ASF muxer: wmplayer can now
834 play them (only tested video)
835 - fixed H.263 white bug
836 - fixed phase rounding in img resample filter
837 - add MMX code for polyphase img resample filter
838 - added CPU autodetection
839 - added generic title/author/copyright/comment string handling (ASF and RM
841 - added SWF demux to extract MP3 track (not usable yet because no MP3
843 - added fractional frame rate support
844 - codecs are no longer searched by read_header() (should fix ffserver
850 - BGR24 patch (initial patch by Jeroen Vreeken <pe1rxq at amsat.org>)
851 - fixed raw yuv output
852 - added motion rounding support in MPEG-4
853 - fixed motion bug rounding in MSMPEG4
854 - added B-frame handling in video core
855 - added full MPEG-1 decoding support
856 - added partial (frame only) MPEG-2 support
857 - changed the FOURCC code for H.263 to "U263" to be able to see the
858 +AVI/H.263 file with the UB Video H.263+ decoder. MPlayer works with
859 this +codec ;) (JuanJo).
860 - Halfpel motion estimation after MB type selection (JuanJo)
861 - added pgm and .Y.U.V output format
862 - suppressed 'img:' protocol. Simply use: /tmp/test%d.[pgm|Y] as input or
864 - added pgmpipe I/O format (original patch from Martin Aumueller
865 <lists at reserv.at>, but changed completely since we use a format
866 instead of a protocol)
871 - added H.263/MPEG-4/MSMPEG4 decoding support. MPEG-4 decoding support
872 (for OpenDivX) is almost complete: 8x8 MVs and rounding are
873 missing. MSMPEG4 support is complete.
874 - added prototype MPEG-1 decoder. Only I- and P-frames handled yet (it
875 can decode ffmpeg MPEGs :-)).
876 - added libavcodec API documentation (see apiexample.c).
877 - fixed image polyphase bug (the bottom of some images could be
879 - added support for non clipped motion vectors (decoding only)
880 and image sizes non-multiple of 16
881 - added support for AC prediction (decoding only)
882 - added file overwrite confirmation (can be disabled with -y)
883 - added custom size picture to H.263 using H.263+ (Juanjo)
888 - added MSMPEG4 (aka DivX) compatible encoder. Changed default codec
889 of AVI and ASF to DIV3.
890 - added -me option to set motion estimation method
891 (default=log). suppressed redundant -hq option.
892 - added options -acodec and -vcodec to force a given codec (useful for
895 - improved dct_quantize speed
896 - factorized some motion estimation code
901 - removing grab code from ffserver and moved it to ffmpeg. Added
902 multistream support to ffmpeg.
903 - added timeshifting support for live feeds (option ?date=xxx in the
905 - added high quality image resize code with polyphase filter (need
906 mmx/see optimization). Enable multiple image size support in ffserver.
907 - added multi live feed support in ffserver
908 - suppressed master feature from ffserver (it should be done with an
909 external program which opens the .ffm url and writes it to another
911 - added preliminary support for video stream parsing (WAV and AVI half
912 done). Added proper support for audio/video file conversion in
914 - added preliminary support for video file sending from ffserver
915 - redesigning I/O subsystem: now using URL based input and output
917 - added WAV format support
918 - added "tty user interface" to ffmpeg to stop grabbing gracefully
919 - added MMX/SSE optimizations to SAD (Sums of Absolutes Differences)
920 (Juan J. Sierralta P. a.k.a. "Juanjo" <juanjo at atmlab.utfsm.cl>)
921 - added MMX DCT from mpeg2_movie 1.5 (Juanjo)
922 - added new motion estimation algorithms, log and phods (Juanjo)
923 - changed directories: libav for format handling, libavcodec for
929 - added stereo in MPEG audio encoder
934 - added 'high quality' mode which use motion vectors. It can be used in
935 real time at low resolution.
936 - fixed rounding problems which caused quality problems at high
937 bitrates and large GOP size
940 version 0.3.2: small fixes
946 version 0.3.1: added avi/divx support
949 - added MPEG-4 codec compatible with OpenDivX. It is based on the H.263 codec
950 - added sound for flash format (not tested)
953 version 0.3: initial public release