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
57 - av_basename and av_dirname
58 - adobe and limelight publisher authentication in RTMP
59 - VDPAU hardware acceleration through normal hwaccel
64 - ashowinfo audio filter
65 - 24-bit FLAC encoding
67 - deprecated the avconv -vol option. the volume filter is to be used instead.
68 - multi-channel ALAC encoding up to 7.1
69 - TAK demuxer, parser, and decoder
70 - adaptive frame-level multithreading for H.264
74 - metadata (INFO tag) support in WAV muxer
75 - support for building DLLs using MSVC
76 - remove avserver daemon mode
77 - support building on the Plan 9 operating system
78 - ffv1: support version 1.3
83 - XWD encoder and decoder
84 - Support for fragmentation in the mov/mp4 muxer
85 - ISMV (Smooth Streaming) muxer
86 - CDXL demuxer and decoder
87 - Apple ProRes encoder
88 - Sun Rasterfile Encoder
90 - ID3v2 attached pictures reading and writing
91 - WMA Lossless decoder
93 - RealAudio Lossless decoder
95 - drop support for avconv without libavfilter
96 - add libavresample audio conversion library
97 - audio filters support in libavfilter and avconv
101 - avprobe output is now standard INI or JSON. The old format can still
102 be used with -of old.
103 - Indeo Audio decoder
104 - channelsplit audio filter
105 - RTMPT protocol support
106 - iLBC encoding/decoding via libilbc
107 - Microsoft Screen 1 decoder
109 - audio channel mapping filter
110 - Microsoft ATC Screen decoder
112 - TechSmith Screen Codec 2 decoder
113 - AAC encoding via libfdk-aac
114 - Microsoft Expression Encoder Screen decoder
115 - RTMPS protocol support
116 - RTMPTS protocol support
117 - JPEG 2000 encoding support through OpenJPEG
118 - G.723.1 demuxer and decoder
119 - RTMPE protocol support
120 - RTMPTE protocol support
121 - Canopus Lossless Codec decoder
122 - avconv -shortest option is now per-output file,
123 -pass and -passlogfile are now per-output stream
125 - Microsoft Screen 2 decoder
126 - RTP depacketization of JPEG
127 - Smooth Streaming live segmenter muxer
128 - RTP packetization of JPEG
129 - Opus decoder and encoder using libopus
130 - remove -same_quant, it hasn't worked for years
131 - support for building with MSVC
142 - Automatic thread count based on detection number of (available) CPU cores
143 - Deprecate libpostproc. If desired, the switch --enable-postproc will
144 enable it but it may be removed in a later Libav release.
145 - rv34: frame-level multi-threading
146 - optimized iMDCT transform on x86 using SSE for for mpegaudiodec
152 - Flash Screen Video 2 decoder
153 - ffplay/ffprobe/ffserver renamed to avplay/avprobe/avserver
154 - ffmpeg deprecated, added avconv, which is almost the same for now, except
155 for a few incompatible changes in the options, which will hopefully make them
156 easier to use. The changes are:
157 * The options placement is now strictly enforced! While in theory the
158 options for ffmpeg should be given in [input options] -i INPUT [output
159 options] OUTPUT order, in practice it was possible to give output options
160 before the -i and it mostly worked. Except when it didn't - the behavior was
161 a bit inconsistent. In avconv, it is not possible to mix input and output
162 options. All non-global options are reset after an input or output filename.
163 * All per-file options are now truly per-file - they apply only to the next
164 input or output file and specifying different values for different files
165 will now work properly (notably -ss and -t options).
166 * All per-stream options are now truly per-stream - it is possible to
167 specify which stream(s) should a given option apply to. See the Stream
168 specifiers section in the avconv manual for details.
169 * In ffmpeg some options (like -newvideo/-newaudio/...) are irregular in the
170 sense that they're specified after the output filename instead of before,
171 like all other options. In avconv this irregularity is removed, all options
172 apply to the next input or output file.
173 * -newvideo/-newaudio/-newsubtitle options were removed. Not only were they
174 irregular and highly confusing, they were also redundant. In avconv the -map
175 option will create new streams in the output file and map input streams to
176 them. E.g. avconv -i INPUT -map 0 OUTPUT will create an output stream for
177 each stream in the first input file.
178 * The -map option now has slightly different and more powerful syntax:
179 + Colons (':') are used to separate file index/stream type/stream index
180 instead of dots. Comma (',') is used to separate the sync stream instead
181 of colon.. This is done for consistency with other options.
182 + It's possible to specify stream type. E.g. -map 0:a:2 creates an
183 output stream from the third input audio stream.
184 + Omitting the stream index now maps all the streams of the given type,
185 not just the first. E.g. -map 0:s creates output streams for all the
186 subtitle streams in the first input file.
187 + Since -map can now match multiple streams, negative mappings were
188 introduced. Negative mappings disable some streams from an already
189 defined map. E.g. '-map 0 -map -0:a:1' means 'create output streams for
190 all the stream in the first input file, except for the second audio
192 * There is a new option -c (or -codec) for choosing the decoder/encoder to
193 use, which allows to precisely specify target stream(s) consistently with
194 other options. E.g. -c:v lib264 sets the codec for all video streams, -c:a:0
195 libvorbis sets the codec for the first audio stream and -c copy copies all
196 the streams without reencoding. Old -vcodec/-acodec/-scodec options are now
198 * It is now possible to precisely specify which stream should an AVOption
199 apply to. E.g. -b:v:0 2M sets the bitrate for the first video stream, while
200 -b:a 128k sets the bitrate for all audio streams. Note that the old -ab 128k
201 syntax is deprecated and will stop working soon.
202 * -map_chapters now takes only an input file index and applies to the next
203 output file. This is consistent with how all the other options work.
204 * -map_metadata now takes only an input metadata specifier and applies to
205 the next output file. Output metadata specifier is now part of the option
206 name, similarly to the AVOptions/map/codec feature above.
207 * -metadata can now be used to set metadata on streams and chapters, e.g.
208 -metadata:s:1 language=eng sets the language of the first stream to 'eng'.
209 This made -vlang/-alang/-slang options redundant, so they were removed.
210 * -qscale option now uses stream specifiers and applies to all streams, not
211 just video. I.e. plain -qscale number would now apply to all streams. To get
212 the old behavior, use -qscale:v. Also there is now a shortcut -q for -qscale
213 and -aq is now an alias for -q:a.
214 * -vbsf/-absf/-sbsf options were removed and replaced by a -bsf option which
215 uses stream specifiers. Use -bsf:v/a/s instead of the old options.
216 * -itsscale option now uses stream specifiers, so its argument is only the
218 * -intra option was removed, use -g 0 for the same effect.
219 * -psnr option was removed, use -flags +psnr for the same effect.
220 * -vf option is now an alias to the new -filter option, which uses stream specifiers.
221 * -vframes/-aframes/-dframes options are now aliases to the new -frames option.
222 * -vtag/-atag/-stag options are now aliases to the new -tag option.
224 - Windows Media Image decoder
228 - libcdio-paranoia input device for audio CD grabbing
230 - Apple ProRes decoder
231 - CELT in Ogg demuxing
232 - VC-1 interlaced decoding
233 - lut, lutrgb, and lutyuv filters
236 - Speex encoding via libspeex
237 - 4:2:2 H.264 decoding support
238 - 4:2:2 and 4:4:4 H.264 encoding with libx264
239 - Pulseaudio input device
240 - replacement Indeo 3 decoder
241 - TLS/SSL and HTTPS protocol support
242 - AVOptions API rewritten and documented
243 - most of CODEC_FLAG2_*, some CODEC_FLAG_* and many codec-specific fields in
244 AVCodecContext deprecated. Codec private options should be used instead.
245 - Properly working defaults in libx264 wrapper, support for native presets.
246 - Encrypted OMA files support
247 - Discworld II BMV decoding support
249 - OS X Video Decoder Acceleration (VDA) support
250 - CRI ADX audio format muxer and demuxer
251 - Playstation Portable PMP format demuxer
252 - PCM format support in OMA demuxer
254 - Dxtory capture format decoder
255 - v410 QuickTime uncompressed 4:4:4 10-bit encoder and decoder
257 - Simple segmenting muxer
264 - E-AC-3 audio encoder
265 - ac3enc: add channel coupling support
266 - floating-point sample format support for (E-)AC-3, DCA, AAC, Vorbis decoders
267 - H.264/MPEG frame-level multithreading
268 - av_metadata_* functions renamed to av_dict_* and moved to libavutil
269 - 4:4:4 H.264 decoding support
270 - 10-bit H.264 optimizations for x86
271 - bump libswscale for recently reported ABI break
276 - VP8 frame-level multithreading
277 - NEON optimizations for VP8
278 - removed a lot of deprecated API cruft
279 - FFT and IMDCT optimizations for AVX (Sandy Bridge) processors
281 - SMPTE 302M AES3 audio decoder
282 - ffmpeg no longer quits after the 'q' key is pressed; use 'ctrl+c' instead
283 - 9bit and 10bit per sample support in the H.264 decoder
288 - WebM support in Matroska de/muxer
289 - low overhead Ogg muxing
291 - VP8 de/encoding via libvpx
292 - Demuxer for On2's IVF format
293 - Pictor/PC Paint decoder
295 - libfaad2 wrapper removed
296 - DTS-ES extension (XCh) decoding support
298 - RTSP tunneling over HTTP
299 - RTP depacketization of SVQ3
300 - -strict inofficial replaced by -strict unofficial
301 - ffplay -exitonkeydown and -exitonmousedown options added
302 - native GSM / GSM MS decoder
303 - RTP depacketization of QDM2
304 - ANSI/ASCII art playback system
305 - Lego Mindstorms RSO de/muxer
306 - SubRip subtitle file muxer and demuxer
307 - Chinese AVS encoding via libxavs
308 - ffprobe -show_packets option added
309 - RTP packetization of Theora and Vorbis
310 - RTP depacketization of MP4A-LATM
311 - RTP packetization and depacketization of VP8
313 - Apple HTTP Live Streaming demuxer
316 - G.722 ADPCM audio encoder/decoder
319 - frei0r wrapper filter
320 - change crop filter syntax to width:height:x:y
321 - make the crop filter accept parametric expressions
322 - make ffprobe accept AVFormatContext options
325 - Demuxer for Leitch/Harris' VR native stream format (LXF)
326 - RTP depacketization of the X-QT QuickTime format
327 - SAP (Session Announcement Protocol, RFC 2974) muxer and demuxer
329 - ffmpeg -crop* options removed
330 - transpose filter added
331 - ffmpeg -force_key_frames option added
332 - demuxer for receiving raw rtp:// URLs without an SDP description
333 - single stream LATM/LOAS decoder
334 - setpts filter added
335 - Win64 support for optimized x86 assembly functions
336 - MJPEG/AVI1 to JPEG/JFIF bitstream filter
337 - ASS subtitle encoder and decoder
338 - IEC 61937 encapsulation for E-AC-3, TrueHD, DTS-HD (for HDMI passthrough)
339 - overlay filter added
340 - rename aspect filter to setdar, and pixelaspect to setsar
342 - Mobotix .mxg demuxer
343 - frei0r source added
344 - hqdn3d filter added
345 - RTP depacketization of QCELP
347 - gradfun filter added
349 - replace the ocv_smooth filter with a more generic ocv filter
350 - Windows Televison (WTV) demuxer
351 - FFmpeg metadata format muxer and demuxer
352 - SubRip (srt) subtitle decoder
353 - floating-point AC-3 encoder added
355 - ffmpeg -copytb option added
357 - Wing Commander IV movies decoder added
359 - Bink version 'b' audio and video decoder
360 - Bitmap Brothers JV playback system
361 - Apple HTTP Live Streaming protocol handler
362 - sndio support for playback and record
363 - Linux framebuffer input device added
364 - Chronomaster DFA decoder
365 - Mobotix MxPEG decoder
366 - AAC encoding via libvo-aacenc
367 - AMR-WB encoding via libvo-amrwbenc
369 - fieldorder video filter added
374 - PB-frame decoding for H.263
375 - deprecated vhook subsystem removed
376 - deprecated old scaler removed
378 - Alpha channel scaler
380 - RTP packetization of H.263
381 - RTP packetization of AMR
382 - RTP depacketization of Vorbis
383 - CorePNG decoding support
384 - Cook multichannel decoding support
385 - introduced avlanguage helpers in libavformat
386 - 8088flex TMV demuxer and decoder
387 - per-stream language-tags extraction in asfdec
388 - V210 decoder and encoder
389 - remaining GPL parts in AC-3 decoder converted to LGPL
391 - SoX native format muxer and demuxer
392 - AMR-NB decoding/encoding, AMR-WB decoding via OpenCORE libraries
394 - Electronic Arts Madcow decoder
395 - DivX (XSUB) subtitle encoder
396 - nonfree libamr support for AMR-NB/WB decoding/encoding removed
397 - experimental AAC encoder
398 - RTP depacketization of ASF and RTSP from WMS servers
399 - RTMP support in libavformat
400 - noX handling for OPT_BOOL X options
402 - IEC-61937 compatible Muxer
404 - Bluray (PGS) subtitle decoder
405 - LPCM support in MPEG-TS (HDMV RID as found on Blu-ray disks)
407 - Core Audio Format demuxer
409 - MD STUDIO audio demuxer
410 - RF64 support in WAV demuxer
411 - MPEG-4 Audio Lossless Coding (ALS) decoder
412 - -formats option split into -formats, -codecs, -bsfs, and -protocols
414 - CDG demuxer and decoder
416 - Auravision Aura 1 and 2 decoders
417 - Deluxe Paint Animation playback system
419 - Adobe Filmstrip muxer and demuxer
420 - RTP depacketization of H.263
421 - Bink demuxer and audio/video decoders
422 - enable symbol versioning by default for linkers that support it
423 - IFF PBM/ILBM bitmap decoder
426 - RTP depacketization of AMR
432 - Kega Game Video (KGV1) decoder
433 - VorbisComment writing for FLAC, Ogg FLAC and Ogg Speex files
434 - RTP depacketization of Theora
435 - HTTP Digest authentication
436 - RTMP/RTMPT/RTMPS/RTMPE/RTMPTE protocol support via librtmp
437 - Psygnosis YOP demuxer and video decoder
438 - spectral extension support in the E-AC-3 decoder
439 - unsharp video filter
440 - RTP hinting in the mov/3gp/mp4 muxer
441 - Dirac in Ogg demuxing
442 - seek to keyframes in Ogg
443 - 4:2:2 and 4:4:4 Theora decoding
444 - 35% faster VP3/Theora decoding
445 - faster AAC decoding
446 - faster H.264 decoding
447 - RealAudio 1.0 (14.4K) encoder
452 - DV50 AKA DVCPRO50 encoder, decoder, muxer and demuxer
453 - TechSmith Camtasia (TSCC) video decoder
454 - IBM Ultimotion (ULTI) video decoder
455 - Sierra Online audio file demuxer and decoder
456 - Apple QuickDraw (qdrw) video decoder
457 - Creative ADPCM audio decoder (16 bits as well as 8 bits schemes)
458 - Electronic Arts Multimedia (WVE/UV2/etc.) file demuxer
459 - Miro VideoXL (VIXL) video decoder
460 - H.261 video encoder
462 - Nullsoft Video (NSV) file demuxer
463 - Shorten audio decoder
465 - Apple Lossless Audio Codec (ALAC) decoder
466 - Winnov WNV1 video decoder
467 - Autodesk Animator Studio Codec (AASC) decoder
468 - Indeo 2 video decoder
469 - Fraps FPS1 video decoder
470 - Snow video encoder/decoder
471 - Sonic audio encoder/decoder
472 - Vorbis audio decoder
473 - Macromedia ADPCM decoder
474 - Duck TrueMotion 2 video decoder
475 - support for decoding FLX and DTA extensions in FLIC files
476 - H.264 custom quantization matrices support
477 - ffserver fixed, it should now be usable again
479 - Real Cooker audio decoder
480 - TrueSpeech audio decoder
481 - WMA2 audio decoder fixed, now all files should play correctly
482 - RealAudio 14.4 and 28.8 decoders fixed
484 - build system improvements
485 - tabs and trailing whitespace removed from the codebase
486 - CamStudio video decoder
487 - AIFF/AIFF-C audio format, encoding and decoding
488 - ADTS AAC file reading and writing
489 - Creative VOC file reading and writing
490 - American Laser Games multimedia (*.mm) playback system
491 - Zip Motion Blocks Video decoder
492 - improved Theora/VP3 decoder
493 - True Audio (TTA) decoder
494 - AVS demuxer and video decoder
496 - Smacker demuxer and decoder
497 - NuppelVideo/MythTV demuxer and RTjpeg decoder
499 - MPEG-2 intra VLC support
500 - MPEG-2 4:2:2 encoder
501 - Flash Screen Video decoder
503 - Chinese AVS decoder
506 - VC-1/WMV3/WMV9 video decoder
509 - VMware video decoder
512 - WavPack lossless audio decoder
513 - Targa (.TGA) picture decoder
514 - Vorbis audio encoder
515 - Delphine Software .cin demuxer/audio and video decoder
516 - Tiertex .seq demuxer/video decoder
518 - TIFF picture encoder and decoder
519 - GIF picture decoder
520 - Intel Music Coder decoder
521 - Zip Motion Blocks Video encoder
523 - Flash Screen Video encoder
524 - Theora encoding via libtheora
527 - GSM-MS encoder and decoder
529 - DXA demuxer and decoder
531 - Gamecube movie (.THP) playback system
532 - Blackfin optimizations
533 - Interplay C93 demuxer and video decoder
534 - Bethsoft VID demuxer and video decoder
537 - V.Flash PTX decoder
538 - RoQ muxer, RoQ audio encoder
539 - Renderware TXD demuxer and decoder
540 - extern C declarations for C++ removed from headers
541 - sws_flags command line option
545 - OS/2 support removed and restored again
548 - additional SPARC (VIS) optimizations
550 - slice-based parallel H.264 decoding
551 - Monkey's Audio demuxer and decoder
552 - AMV audio and video decoder
554 - H.264 PAFF decoding
555 - Nellymoser ASAO decoder
556 - Beam Software SIFF demuxer and decoder
557 - libvorbis Vorbis decoding removed in favor of native decoder
558 - IntraX8 (J-Frame) subdecoder for WMV2 and VC-1
559 - Ogg (Theora, Vorbis and FLAC) muxer
560 - The "device" muxers and demuxers are now in a new libavdevice library
561 - PC Paintbrush PCX decoder
562 - Sun Rasterfile decoder
563 - TechnoTrend PVA demuxer
564 - Linux Media Labs MPEG-4 (LMLM4) demuxer
565 - AVM2 (Flash 9) SWF muxer
566 - QT variant of IMA ADPCM encoder
568 - iPod/iPhone compatible mp4 muxer
570 - MSN TCP Webcam stream demuxer
571 - RL2 demuxer / decoder
574 - non-recursive Makefiles
576 - MAXIS EA XA (.xa) demuxer / decoder
580 - Electronic Arts CMV decoder
581 - Motion Pixels Video decoder
582 - Motion Pixels MVI demuxer
583 - removed animated GIF decoder/demuxer
584 - D-Cinema audio muxer
585 - Electronic Arts TGV decoder
586 - Apple Lossless Audio Codec (ALAC) encoder
588 - floating point PCM encoder/decoder
590 - DV100 AKA DVCPRO HD decoder and demuxer
591 - E-AC-3 support added to AC-3 decoder
592 - Nellymoser ASAO encoder
593 - ASS and SSA demuxer and muxer
594 - liba52 wrapper removed
595 - SVQ3 watermark decoding support
596 - Speex decoding via libspeex
597 - Electronic Arts TGQ decoder
599 - QCELP / PureVoice decoder
601 - hybrid WavPack support
602 - R3D REDCODE demuxer
603 - ALSA support for playback and record
604 - Electronic Arts TQI decoder
605 - OpenJPEG based JPEG 2000 decoder
606 - NC (NC4600) camera file demuxer
607 - Gopher client support
609 - generic metadata API
614 - DV encoder, DV muxer
615 - Microsoft RLE video decoder
616 - Microsoft Video-1 decoder
617 - Apple Animation (RLE) decoder
618 - Apple Graphics (SMC) decoder
619 - Apple Video (RPZA) decoder
621 - Sega FILM (CPK) file demuxer
622 - Westwood multimedia support (VQA & AUD files)
623 - Id Quake II CIN playback support
625 - FLIC playback support
626 - RealVideo 2.0 (RV20) decoder
627 - Duck TrueMotion v1 (DUCK) video decoder
628 - Sierra VMD demuxer and video decoder
629 - MSZH and ZLIB decoder support
633 - rate distortion optimal cbp support
634 - rate distorted optimal ac prediction for MPEG-4
635 - rate distorted optimal lambda->qp support
636 - AAC encoding with libfaac
637 - Sunplus JPEG codec (SP5X) support
638 - use Lagrange multipler instead of QP for ratecontrol
639 - Theora/VP3 decoding support
640 - XA and ADX ADPCM codecs
641 - export MPEG-2 active display area / pan scan
642 - Add support for configuring with IBM XLC
643 - floating point AAN DCT
644 - initial support for zygo video (not complete)
646 - new audio/video parser API
648 - av_read_frame() and av_seek_frame() support
649 - missing last frame fixes
650 - seek by mouse in ffplay
651 - noise reduction of DCT coefficients
652 - H.263 OBMC & 4MV support
653 - H.263 alternative inter vlc support
655 - H.263 slice structured mode
656 - interlaced DCT support for MPEG-2 encoding
657 - stuffing to stay above min_bitrate
658 - MB type & QP visualization
659 - frame stepping for ffplay
660 - interlaced motion estimation
661 - alternate scantable support
662 - SVCD scan offset support
665 - quantizer noise shaping
666 - G.726 ADPCM audio codec
668 - multithreaded/SMP motion estimation
669 - multithreaded/SMP encoding for MPEG-1/MPEG-2/MPEG-4/H.263
670 - multithreaded/SMP decoding for MPEG-2
672 - Metrowerks CodeWarrior suppport
673 - H.263+ custom pcf support
674 - nicer output for 'ffmpeg -formats'
676 - SGI image format, encoding and decoding
677 - H.264 loop filter support
678 - H.264 CABAC support
679 - nicer looking arrows for the motion vector visualization
680 - improved VCD support
681 - audio timestamp drift compensation
682 - MPEG-2 YUV 422/444 support
683 - polyphase kaiser windowed sinc and blackman nuttall windowed sinc audio resample
684 - better image scaling
686 - correctly interleave packets during encoding
687 - VIS optimized motion compensation
688 - intra_dc_precision>0 encoding support
689 - support reuse of motion vectors/MB types/field select values of the source video
690 - more accurate deblock filter
692 - many optimizations and bugfixes
693 - FunCom ISS audio file demuxer and according ADPCM decoding
698 - MPEG-2 video encoding (Michael)
699 - Id RoQ playback subsystem (Mike Melanson and Tim Ferguson)
700 - Wing Commander III Movie (.mve) file playback subsystem (Mike Melanson
702 - Xan DPCM audio decoder (Mario Brito)
703 - Interplay MVE playback subsystem (Mike Melanson)
704 - Duck DK3 and DK4 ADPCM audio decoders (Mike Melanson)
709 - RealAudio 1.0 (14_4) and 2.0 (28_8) native decoders. Author unknown, code from mplayerhq
710 (originally from public domain player for Amiga at http://www.honeypot.net/audio)
711 - current version now also compiles with older GCC (Fabrice)
712 - 4X multimedia playback system including 4xm file demuxer (Mike
713 Melanson), and 4X video and audio codecs (Michael)
714 - Creative YUV (CYUV) decoder (Mike Melanson)
715 - FFV1 codec (our very simple lossless intra only codec, compresses much better
716 than HuffYUV) (Michael)
717 - ASV1 (Asus), H.264, Intel indeo3 codecs have been added (various)
718 - tiny PNG encoder and decoder, tiny GIF decoder, PAM decoder (PPM with
719 alpha support), JPEG YUV colorspace support. (Fabrice Bellard)
720 - ffplay has been replaced with a newer version which uses SDL (optionally)
721 for multiplatform support (Fabrice)
722 - Sorenson Version 3 codec (SVQ3) support has been added (decoding only) - donated
724 - AMR format has been added (Johannes Carlsson)
725 - 3GP support has been added (Johannes Carlsson)
726 - VP3 codec has been added (Mike Melanson)
727 - more MPEG-1/2 fixes
728 - better multiplatform support, MS Visual Studio fixes (various)
729 - AltiVec optimizations (Magnus Damn and others)
730 - SH4 processor support has been added (BERO)
731 - new public interfaces (avcodec_get_pix_fmt) (Roman Shaposhnick)
732 - VOB streaming support (Brian Foley)
733 - better MP3 autodetection (Andriy Rysin)
734 - qpel encoding (Michael)
735 - 4mv+b frames encoding finally fixed (Michael)
736 - chroma ME (Michael)
737 - 5 comparison functions for ME (Michael)
738 - B-frame encoding speedup (Michael)
739 - WMV2 codec (unfinished - Michael)
740 - user specified diamond size for EPZS (Michael)
741 - Playstation STR playback subsystem, still experimental (Mike and Michael)
742 - ASV2 codec (Michael)
743 - CLJR decoder (Alex)
745 .. And lots more new enhancements and fixes.
750 - completely new integer only MPEG audio layer 1/2/3 decoder rewritten
752 - Recoded DCT and motion vector search with gcc (no longer depends on nasm)
753 - fix quantization bug in AC3 encoder
754 - added PCM codecs and format. Corrected WAV/AVI/ASF PCM issues
755 - added prototype ffplay program
756 - added GOB header parsing on H.263/H.263+ decoder (Juanjo)
757 - bug fix on MCBPC tables of H.263 (Juanjo)
758 - bug fix on DC coefficients of H.263 (Juanjo)
759 - added Advanced Prediction Mode on H.263/H.263+ decoder (Juanjo)
760 - now we can decode H.263 streams found in QuickTime files (Juanjo)
761 - now we can decode H.263 streams found in VIVO v1 files(Juanjo)
762 - preliminary RTP "friendly" mode for H.263/H.263+ coding. (Juanjo)
763 - added GOB header for H.263/H.263+ coding on RTP mode (Juanjo)
764 - now H.263 picture size is returned on the first decoded frame (Juanjo)
765 - added first regression tests
766 - added MPEG-2 TS demuxer
767 - new demux API for libav
768 - more accurate and faster IDCT (Michael)
769 - faster and entropy-controlled motion search (Michael)
770 - two pass video encoding (Michael)
771 - new video rate control (Michael)
772 - added MSMPEG4V1, MSMPEGV2 and WMV1 support (Michael)
773 - great performance improvement of video encoders and decoders (Michael)
774 - new and faster bit readers and vlc parsers (Michael)
775 - high quality encoding mode: tries all macroblock/VLC types (Michael)
776 - added DV video decoder
777 - preliminary RTP/RTSP support in ffserver and libavformat
778 - H.263+ AIC decoding/encoding support (Juanjo)
779 - VCD MPEG-PS mode (Juanjo)
780 - PSNR stuff (Juanjo)
781 - simple stats output (Juanjo)
782 - 16-bit and 15-bit RGB/BGR/GBR support (Bisqwit)
787 - some header fixes (Zdenek Kabelac <kabi at informatics.muni.cz>)
788 - many MMX optimizations (Nick Kurshev <nickols_k at mail.ru>)
789 - added configure system (actually a small shell script)
790 - added MPEG audio layer 1/2/3 decoding using LGPL'ed mpglib by
791 Michael Hipp (temporary solution - waiting for integer only
793 - fixed VIDIOCSYNC interrupt
794 - added Intel H.263 decoding support ('I263' AVI fourCC)
795 - added Real Video 1.0 decoding (needs further testing)
796 - simplified image formats again. Added PGM format (=grey
797 pgm). Renamed old PGM to PGMYUV.
798 - fixed msmpeg4 slice issues (tell me if you still find problems)
799 - fixed OpenDivX bugs with newer versions (added VOL header decoding)
800 - added support for MPlayer interface
801 - added macroblock skip optimization
802 - added MJPEG decoder
803 - added mmx/mmxext IDCT from libmpeg2
804 - added pgmyuvpipe, ppm, and ppm_pipe formats (original patch by Celer
805 <celer at shell.scrypt.net>)
806 - added pixel format conversion layer (e.g. for MJPEG or PPM)
807 - added deinterlacing option
809 - MPEG-4 vol header fixes (Jonathan Marsden <snmjbm at pacbell.net>)
810 - ARM optimizations (Lionel Ulmer <lionel.ulmer at free.fr>).
811 - Windows porting of file converter
812 - added MJPEG raw format (input/ouput)
813 - added JPEG image format support (input/output)
818 - fixed some std header definitions (Bjorn Lindgren
819 <bjorn.e.lindgren at telia.com>).
820 - added MPEG demuxer (MPEG-1 and 2 compatible).
822 - added prototype RM demuxer
823 - added AC3 decoding (done with libac3 by Aaron Holtzman)
824 - added decoding codec parameter guessing (.e.g. for MPEG, because the
825 header does not include them)
826 - fixed header generation in MPEG-1, AVI and ASF muxer: wmplayer can now
827 play them (only tested video)
828 - fixed H.263 white bug
829 - fixed phase rounding in img resample filter
830 - add MMX code for polyphase img resample filter
831 - added CPU autodetection
832 - added generic title/author/copyright/comment string handling (ASF and RM
834 - added SWF demux to extract MP3 track (not usable yet because no MP3
836 - added fractional frame rate support
837 - codecs are no longer searched by read_header() (should fix ffserver
843 - BGR24 patch (initial patch by Jeroen Vreeken <pe1rxq at amsat.org>)
844 - fixed raw yuv output
845 - added motion rounding support in MPEG-4
846 - fixed motion bug rounding in MSMPEG4
847 - added B-frame handling in video core
848 - added full MPEG-1 decoding support
849 - added partial (frame only) MPEG-2 support
850 - changed the FOURCC code for H.263 to "U263" to be able to see the
851 +AVI/H.263 file with the UB Video H.263+ decoder. MPlayer works with
852 this +codec ;) (JuanJo).
853 - Halfpel motion estimation after MB type selection (JuanJo)
854 - added pgm and .Y.U.V output format
855 - suppressed 'img:' protocol. Simply use: /tmp/test%d.[pgm|Y] as input or
857 - added pgmpipe I/O format (original patch from Martin Aumueller
858 <lists at reserv.at>, but changed completely since we use a format
859 instead of a protocol)
864 - added H.263/MPEG-4/MSMPEG4 decoding support. MPEG-4 decoding support
865 (for OpenDivX) is almost complete: 8x8 MVs and rounding are
866 missing. MSMPEG4 support is complete.
867 - added prototype MPEG-1 decoder. Only I- and P-frames handled yet (it
868 can decode ffmpeg MPEGs :-)).
869 - added libavcodec API documentation (see apiexample.c).
870 - fixed image polyphase bug (the bottom of some images could be
872 - added support for non clipped motion vectors (decoding only)
873 and image sizes non-multiple of 16
874 - added support for AC prediction (decoding only)
875 - added file overwrite confirmation (can be disabled with -y)
876 - added custom size picture to H.263 using H.263+ (Juanjo)
881 - added MSMPEG4 (aka DivX) compatible encoder. Changed default codec
882 of AVI and ASF to DIV3.
883 - added -me option to set motion estimation method
884 (default=log). suppressed redundant -hq option.
885 - added options -acodec and -vcodec to force a given codec (useful for
888 - improved dct_quantize speed
889 - factorized some motion estimation code
894 - removing grab code from ffserver and moved it to ffmpeg. Added
895 multistream support to ffmpeg.
896 - added timeshifting support for live feeds (option ?date=xxx in the
898 - added high quality image resize code with polyphase filter (need
899 mmx/see optimization). Enable multiple image size support in ffserver.
900 - added multi live feed support in ffserver
901 - suppressed master feature from ffserver (it should be done with an
902 external program which opens the .ffm url and writes it to another
904 - added preliminary support for video stream parsing (WAV and AVI half
905 done). Added proper support for audio/video file conversion in
907 - added preliminary support for video file sending from ffserver
908 - redesigning I/O subsystem: now using URL based input and output
910 - added WAV format support
911 - added "tty user interface" to ffmpeg to stop grabbing gracefully
912 - added MMX/SSE optimizations to SAD (Sums of Absolutes Differences)
913 (Juan J. Sierralta P. a.k.a. "Juanjo" <juanjo at atmlab.utfsm.cl>)
914 - added MMX DCT from mpeg2_movie 1.5 (Juanjo)
915 - added new motion estimation algorithms, log and phods (Juanjo)
916 - changed directories: libav for format handling, libavcodec for
922 - added stereo in MPEG audio encoder
927 - added 'high quality' mode which use motion vectors. It can be used in
928 real time at low resolution.
929 - fixed rounding problems which caused quality problems at high
930 bitrates and large GOP size
933 version 0.3.2: small fixes
939 version 0.3.1: added avi/divx support
942 - added MPEG-4 codec compatible with OpenDivX. It is based on the H.263 codec
943 - added sound for flash format (not tested)
946 version 0.3: initial public release