1 Entries are sorted chronologically from oldest to youngest within each release,
2 releases are sorted from youngest to oldest.
6 - support ID3v2 tags in ASF files
7 - reference-counting for AVFrame and AVPacket data
8 - avconv now fails when input options are used for output file
10 - new avconv options -filter_script and -filter_complex_script, which allow a
11 filtergraph description to be read from a file
12 - uniform options syntax across all filters
13 - new interlace filter
15 - new asetpts filter (same as setpts, but for audio)
16 - new trim and atrim filters
17 - avconv -t and -ss (output-only) options are now sample-accurate when
19 - Matroska muxer can now put the index at the beginning of the file.
20 - avconv -deinterlace option removed, the yadif filter should be used instead
21 - Apple Intermediate Codec decoder
22 - Escape 130 video decoder
23 - support for slice multithreading in libavfilter
24 - VC-1 interlaced B-frame support
25 - support for WavPack muxing (raw and in Matroska)
27 - WavPack encoding through libwavpack
28 - Added the -n parameter to avconv
32 - av_basename and av_dirname
33 - adobe and limelight publisher authentication in RTMP
34 - VDPAU hardware acceleration through normal hwaccel
39 - ashowinfo audio filter
40 - 24-bit FLAC encoding
42 - deprecated the avconv -vol option. the volume filter is to be used instead.
43 - multi-channel ALAC encoding up to 7.1
44 - TAK demuxer, parser, and decoder
45 - adaptive frame-level multithreading for H.264
49 - metadata (INFO tag) support in WAV muxer
50 - support for building DLLs using MSVC
51 - remove avserver daemon mode
52 - support building on the Plan 9 operating system
53 - ffv1: support version 1.3
58 - XWD encoder and decoder
59 - Support for fragmentation in the mov/mp4 muxer
60 - ISMV (Smooth Streaming) muxer
61 - CDXL demuxer and decoder
62 - Apple ProRes encoder
63 - Sun Rasterfile Encoder
65 - ID3v2 attached pictures reading and writing
66 - WMA Lossless decoder
68 - RealAudio Lossless decoder
70 - drop support for avconv without libavfilter
71 - add libavresample audio conversion library
72 - audio filters support in libavfilter and avconv
76 - avprobe output is now standard INI or JSON. The old format can still
79 - channelsplit audio filter
80 - RTMPT protocol support
81 - iLBC encoding/decoding via libilbc
82 - Microsoft Screen 1 decoder
84 - audio channel mapping filter
85 - Microsoft ATC Screen decoder
87 - TechSmith Screen Codec 2 decoder
88 - AAC encoding via libfdk-aac
89 - Microsoft Expression Encoder Screen decoder
90 - RTMPS protocol support
91 - RTMPTS protocol support
92 - JPEG 2000 encoding support through OpenJPEG
93 - G.723.1 demuxer and decoder
94 - RTMPE protocol support
95 - RTMPTE protocol support
96 - Canopus Lossless Codec decoder
97 - avconv -shortest option is now per-output file,
98 -pass and -passlogfile are now per-output stream
100 - Microsoft Screen 2 decoder
101 - RTP depacketization of JPEG
102 - Smooth Streaming live segmenter muxer
103 - RTP packetization of JPEG
104 - Opus decoder and encoder using libopus
105 - remove -same_quant, it hasn't worked for years
106 - support for building with MSVC
117 - Automatic thread count based on detection number of (available) CPU cores
118 - Deprecate libpostproc. If desired, the switch --enable-postproc will
119 enable it but it may be removed in a later Libav release.
120 - rv34: frame-level multi-threading
121 - optimized iMDCT transform on x86 using SSE for for mpegaudiodec
127 - Flash Screen Video 2 decoder
128 - ffplay/ffprobe/ffserver renamed to avplay/avprobe/avserver
129 - ffmpeg deprecated, added avconv, which is almost the same for now, except
130 for a few incompatible changes in the options, which will hopefully make them
131 easier to use. The changes are:
132 * The options placement is now strictly enforced! While in theory the
133 options for ffmpeg should be given in [input options] -i INPUT [output
134 options] OUTPUT order, in practice it was possible to give output options
135 before the -i and it mostly worked. Except when it didn't - the behavior was
136 a bit inconsistent. In avconv, it is not possible to mix input and output
137 options. All non-global options are reset after an input or output filename.
138 * All per-file options are now truly per-file - they apply only to the next
139 input or output file and specifying different values for different files
140 will now work properly (notably -ss and -t options).
141 * All per-stream options are now truly per-stream - it is possible to
142 specify which stream(s) should a given option apply to. See the Stream
143 specifiers section in the avconv manual for details.
144 * In ffmpeg some options (like -newvideo/-newaudio/...) are irregular in the
145 sense that they're specified after the output filename instead of before,
146 like all other options. In avconv this irregularity is removed, all options
147 apply to the next input or output file.
148 * -newvideo/-newaudio/-newsubtitle options were removed. Not only were they
149 irregular and highly confusing, they were also redundant. In avconv the -map
150 option will create new streams in the output file and map input streams to
151 them. E.g. avconv -i INPUT -map 0 OUTPUT will create an output stream for
152 each stream in the first input file.
153 * The -map option now has slightly different and more powerful syntax:
154 + Colons (':') are used to separate file index/stream type/stream index
155 instead of dots. Comma (',') is used to separate the sync stream instead
156 of colon.. This is done for consistency with other options.
157 + It's possible to specify stream type. E.g. -map 0:a:2 creates an
158 output stream from the third input audio stream.
159 + Omitting the stream index now maps all the streams of the given type,
160 not just the first. E.g. -map 0:s creates output streams for all the
161 subtitle streams in the first input file.
162 + Since -map can now match multiple streams, negative mappings were
163 introduced. Negative mappings disable some streams from an already
164 defined map. E.g. '-map 0 -map -0:a:1' means 'create output streams for
165 all the stream in the first input file, except for the second audio
167 * There is a new option -c (or -codec) for choosing the decoder/encoder to
168 use, which allows to precisely specify target stream(s) consistently with
169 other options. E.g. -c:v lib264 sets the codec for all video streams, -c:a:0
170 libvorbis sets the codec for the first audio stream and -c copy copies all
171 the streams without reencoding. Old -vcodec/-acodec/-scodec options are now
173 * It is now possible to precisely specify which stream should an AVOption
174 apply to. E.g. -b:v:0 2M sets the bitrate for the first video stream, while
175 -b:a 128k sets the bitrate for all audio streams. Note that the old -ab 128k
176 syntax is deprecated and will stop working soon.
177 * -map_chapters now takes only an input file index and applies to the next
178 output file. This is consistent with how all the other options work.
179 * -map_metadata now takes only an input metadata specifier and applies to
180 the next output file. Output metadata specifier is now part of the option
181 name, similarly to the AVOptions/map/codec feature above.
182 * -metadata can now be used to set metadata on streams and chapters, e.g.
183 -metadata:s:1 language=eng sets the language of the first stream to 'eng'.
184 This made -vlang/-alang/-slang options redundant, so they were removed.
185 * -qscale option now uses stream specifiers and applies to all streams, not
186 just video. I.e. plain -qscale number would now apply to all streams. To get
187 the old behavior, use -qscale:v. Also there is now a shortcut -q for -qscale
188 and -aq is now an alias for -q:a.
189 * -vbsf/-absf/-sbsf options were removed and replaced by a -bsf option which
190 uses stream specifiers. Use -bsf:v/a/s instead of the old options.
191 * -itsscale option now uses stream specifiers, so its argument is only the
193 * -intra option was removed, use -g 0 for the same effect.
194 * -psnr option was removed, use -flags +psnr for the same effect.
195 * -vf option is now an alias to the new -filter option, which uses stream specifiers.
196 * -vframes/-aframes/-dframes options are now aliases to the new -frames option.
197 * -vtag/-atag/-stag options are now aliases to the new -tag option.
199 - Windows Media Image decoder
203 - libcdio-paranoia input device for audio CD grabbing
205 - Apple ProRes decoder
206 - CELT in Ogg demuxing
207 - VC-1 interlaced decoding
208 - lut, lutrgb, and lutyuv filters
211 - Speex encoding via libspeex
212 - 4:2:2 H.264 decoding support
213 - 4:2:2 and 4:4:4 H.264 encoding with libx264
214 - Pulseaudio input device
215 - replacement Indeo 3 decoder
216 - TLS/SSL and HTTPS protocol support
217 - AVOptions API rewritten and documented
218 - most of CODEC_FLAG2_*, some CODEC_FLAG_* and many codec-specific fields in
219 AVCodecContext deprecated. Codec private options should be used instead.
220 - Properly working defaults in libx264 wrapper, support for native presets.
221 - Encrypted OMA files support
222 - Discworld II BMV decoding support
224 - OS X Video Decoder Acceleration (VDA) support
225 - CRI ADX audio format muxer and demuxer
226 - Playstation Portable PMP format demuxer
227 - PCM format support in OMA demuxer
229 - Dxtory capture format decoder
230 - v410 QuickTime uncompressed 4:4:4 10-bit encoder and decoder
232 - Simple segmenting muxer
239 - E-AC-3 audio encoder
240 - ac3enc: add channel coupling support
241 - floating-point sample format support for (E-)AC-3, DCA, AAC, Vorbis decoders
242 - H.264/MPEG frame-level multithreading
243 - av_metadata_* functions renamed to av_dict_* and moved to libavutil
244 - 4:4:4 H.264 decoding support
245 - 10-bit H.264 optimizations for x86
246 - bump libswscale for recently reported ABI break
251 - VP8 frame-level multithreading
252 - NEON optimizations for VP8
253 - removed a lot of deprecated API cruft
254 - FFT and IMDCT optimizations for AVX (Sandy Bridge) processors
256 - SMPTE 302M AES3 audio decoder
257 - ffmpeg no longer quits after the 'q' key is pressed; use 'ctrl+c' instead
258 - 9bit and 10bit per sample support in the H.264 decoder
263 - WebM support in Matroska de/muxer
264 - low overhead Ogg muxing
266 - VP8 de/encoding via libvpx
267 - Demuxer for On2's IVF format
268 - Pictor/PC Paint decoder
270 - libfaad2 wrapper removed
271 - DTS-ES extension (XCh) decoding support
273 - RTSP tunneling over HTTP
274 - RTP depacketization of SVQ3
275 - -strict inofficial replaced by -strict unofficial
276 - ffplay -exitonkeydown and -exitonmousedown options added
277 - native GSM / GSM MS decoder
278 - RTP depacketization of QDM2
279 - ANSI/ASCII art playback system
280 - Lego Mindstorms RSO de/muxer
281 - SubRip subtitle file muxer and demuxer
282 - Chinese AVS encoding via libxavs
283 - ffprobe -show_packets option added
284 - RTP packetization of Theora and Vorbis
285 - RTP depacketization of MP4A-LATM
286 - RTP packetization and depacketization of VP8
288 - Apple HTTP Live Streaming demuxer
291 - G.722 ADPCM audio encoder/decoder
294 - frei0r wrapper filter
295 - change crop filter syntax to width:height:x:y
296 - make the crop filter accept parametric expressions
297 - make ffprobe accept AVFormatContext options
300 - Demuxer for Leitch/Harris' VR native stream format (LXF)
301 - RTP depacketization of the X-QT QuickTime format
302 - SAP (Session Announcement Protocol, RFC 2974) muxer and demuxer
304 - ffmpeg -crop* options removed
305 - transpose filter added
306 - ffmpeg -force_key_frames option added
307 - demuxer for receiving raw rtp:// URLs without an SDP description
308 - single stream LATM/LOAS decoder
309 - setpts filter added
310 - Win64 support for optimized x86 assembly functions
311 - MJPEG/AVI1 to JPEG/JFIF bitstream filter
312 - ASS subtitle encoder and decoder
313 - IEC 61937 encapsulation for E-AC-3, TrueHD, DTS-HD (for HDMI passthrough)
314 - overlay filter added
315 - rename aspect filter to setdar, and pixelaspect to setsar
317 - Mobotix .mxg demuxer
318 - frei0r source added
319 - hqdn3d filter added
320 - RTP depacketization of QCELP
322 - gradfun filter added
324 - replace the ocv_smooth filter with a more generic ocv filter
325 - Windows Televison (WTV) demuxer
326 - FFmpeg metadata format muxer and demuxer
327 - SubRip (srt) subtitle decoder
328 - floating-point AC-3 encoder added
330 - ffmpeg -copytb option added
332 - Wing Commander IV movies decoder added
334 - Bink version 'b' audio and video decoder
335 - Bitmap Brothers JV playback system
336 - Apple HTTP Live Streaming protocol handler
337 - sndio support for playback and record
338 - Linux framebuffer input device added
339 - Chronomaster DFA decoder
340 - Mobotix MxPEG decoder
341 - AAC encoding via libvo-aacenc
342 - AMR-WB encoding via libvo-amrwbenc
344 - fieldorder video filter added
349 - PB-frame decoding for H.263
350 - deprecated vhook subsystem removed
351 - deprecated old scaler removed
353 - Alpha channel scaler
355 - RTP packetization of H.263
356 - RTP packetization of AMR
357 - RTP depacketization of Vorbis
358 - CorePNG decoding support
359 - Cook multichannel decoding support
360 - introduced avlanguage helpers in libavformat
361 - 8088flex TMV demuxer and decoder
362 - per-stream language-tags extraction in asfdec
363 - V210 decoder and encoder
364 - remaining GPL parts in AC-3 decoder converted to LGPL
366 - SoX native format muxer and demuxer
367 - AMR-NB decoding/encoding, AMR-WB decoding via OpenCORE libraries
369 - Electronic Arts Madcow decoder
370 - DivX (XSUB) subtitle encoder
371 - nonfree libamr support for AMR-NB/WB decoding/encoding removed
372 - experimental AAC encoder
373 - RTP depacketization of ASF and RTSP from WMS servers
374 - RTMP support in libavformat
375 - noX handling for OPT_BOOL X options
377 - IEC-61937 compatible Muxer
379 - Bluray (PGS) subtitle decoder
380 - LPCM support in MPEG-TS (HDMV RID as found on Blu-ray disks)
382 - Core Audio Format demuxer
384 - MD STUDIO audio demuxer
385 - RF64 support in WAV demuxer
386 - MPEG-4 Audio Lossless Coding (ALS) decoder
387 - -formats option split into -formats, -codecs, -bsfs, and -protocols
389 - CDG demuxer and decoder
391 - Auravision Aura 1 and 2 decoders
392 - Deluxe Paint Animation playback system
394 - Adobe Filmstrip muxer and demuxer
395 - RTP depacketization of H.263
396 - Bink demuxer and audio/video decoders
397 - enable symbol versioning by default for linkers that support it
398 - IFF PBM/ILBM bitmap decoder
401 - RTP depacketization of AMR
407 - Kega Game Video (KGV1) decoder
408 - VorbisComment writing for FLAC, Ogg FLAC and Ogg Speex files
409 - RTP depacketization of Theora
410 - HTTP Digest authentication
411 - RTMP/RTMPT/RTMPS/RTMPE/RTMPTE protocol support via librtmp
412 - Psygnosis YOP demuxer and video decoder
413 - spectral extension support in the E-AC-3 decoder
414 - unsharp video filter
415 - RTP hinting in the mov/3gp/mp4 muxer
416 - Dirac in Ogg demuxing
417 - seek to keyframes in Ogg
418 - 4:2:2 and 4:4:4 Theora decoding
419 - 35% faster VP3/Theora decoding
420 - faster AAC decoding
421 - faster H.264 decoding
422 - RealAudio 1.0 (14.4K) encoder
427 - DV50 AKA DVCPRO50 encoder, decoder, muxer and demuxer
428 - TechSmith Camtasia (TSCC) video decoder
429 - IBM Ultimotion (ULTI) video decoder
430 - Sierra Online audio file demuxer and decoder
431 - Apple QuickDraw (qdrw) video decoder
432 - Creative ADPCM audio decoder (16 bits as well as 8 bits schemes)
433 - Electronic Arts Multimedia (WVE/UV2/etc.) file demuxer
434 - Miro VideoXL (VIXL) video decoder
435 - H.261 video encoder
437 - Nullsoft Video (NSV) file demuxer
438 - Shorten audio decoder
440 - Apple Lossless Audio Codec (ALAC) decoder
441 - Winnov WNV1 video decoder
442 - Autodesk Animator Studio Codec (AASC) decoder
443 - Indeo 2 video decoder
444 - Fraps FPS1 video decoder
445 - Snow video encoder/decoder
446 - Sonic audio encoder/decoder
447 - Vorbis audio decoder
448 - Macromedia ADPCM decoder
449 - Duck TrueMotion 2 video decoder
450 - support for decoding FLX and DTA extensions in FLIC files
451 - H.264 custom quantization matrices support
452 - ffserver fixed, it should now be usable again
454 - Real Cooker audio decoder
455 - TrueSpeech audio decoder
456 - WMA2 audio decoder fixed, now all files should play correctly
457 - RealAudio 14.4 and 28.8 decoders fixed
459 - build system improvements
460 - tabs and trailing whitespace removed from the codebase
461 - CamStudio video decoder
462 - AIFF/AIFF-C audio format, encoding and decoding
463 - ADTS AAC file reading and writing
464 - Creative VOC file reading and writing
465 - American Laser Games multimedia (*.mm) playback system
466 - Zip Motion Blocks Video decoder
467 - improved Theora/VP3 decoder
468 - True Audio (TTA) decoder
469 - AVS demuxer and video decoder
471 - Smacker demuxer and decoder
472 - NuppelVideo/MythTV demuxer and RTjpeg decoder
474 - MPEG-2 intra VLC support
475 - MPEG-2 4:2:2 encoder
476 - Flash Screen Video decoder
478 - Chinese AVS decoder
481 - VC-1/WMV3/WMV9 video decoder
484 - VMware video decoder
487 - WavPack lossless audio decoder
488 - Targa (.TGA) picture decoder
489 - Vorbis audio encoder
490 - Delphine Software .cin demuxer/audio and video decoder
491 - Tiertex .seq demuxer/video decoder
493 - TIFF picture encoder and decoder
494 - GIF picture decoder
495 - Intel Music Coder decoder
496 - Zip Motion Blocks Video encoder
498 - Flash Screen Video encoder
499 - Theora encoding via libtheora
502 - GSM-MS encoder and decoder
504 - DXA demuxer and decoder
506 - Gamecube movie (.THP) playback system
507 - Blackfin optimizations
508 - Interplay C93 demuxer and video decoder
509 - Bethsoft VID demuxer and video decoder
512 - V.Flash PTX decoder
513 - RoQ muxer, RoQ audio encoder
514 - Renderware TXD demuxer and decoder
515 - extern C declarations for C++ removed from headers
516 - sws_flags command line option
520 - OS/2 support removed and restored again
523 - additional SPARC (VIS) optimizations
525 - slice-based parallel H.264 decoding
526 - Monkey's Audio demuxer and decoder
527 - AMV audio and video decoder
529 - H.264 PAFF decoding
530 - Nellymoser ASAO decoder
531 - Beam Software SIFF demuxer and decoder
532 - libvorbis Vorbis decoding removed in favor of native decoder
533 - IntraX8 (J-Frame) subdecoder for WMV2 and VC-1
534 - Ogg (Theora, Vorbis and FLAC) muxer
535 - The "device" muxers and demuxers are now in a new libavdevice library
536 - PC Paintbrush PCX decoder
537 - Sun Rasterfile decoder
538 - TechnoTrend PVA demuxer
539 - Linux Media Labs MPEG-4 (LMLM4) demuxer
540 - AVM2 (Flash 9) SWF muxer
541 - QT variant of IMA ADPCM encoder
543 - iPod/iPhone compatible mp4 muxer
545 - MSN TCP Webcam stream demuxer
546 - RL2 demuxer / decoder
549 - non-recursive Makefiles
551 - MAXIS EA XA (.xa) demuxer / decoder
555 - Electronic Arts CMV decoder
556 - Motion Pixels Video decoder
557 - Motion Pixels MVI demuxer
558 - removed animated GIF decoder/demuxer
559 - D-Cinema audio muxer
560 - Electronic Arts TGV decoder
561 - Apple Lossless Audio Codec (ALAC) encoder
563 - floating point PCM encoder/decoder
565 - DV100 AKA DVCPRO HD decoder and demuxer
566 - E-AC-3 support added to AC-3 decoder
567 - Nellymoser ASAO encoder
568 - ASS and SSA demuxer and muxer
569 - liba52 wrapper removed
570 - SVQ3 watermark decoding support
571 - Speex decoding via libspeex
572 - Electronic Arts TGQ decoder
574 - QCELP / PureVoice decoder
576 - hybrid WavPack support
577 - R3D REDCODE demuxer
578 - ALSA support for playback and record
579 - Electronic Arts TQI decoder
580 - OpenJPEG based JPEG 2000 decoder
581 - NC (NC4600) camera file demuxer
582 - Gopher client support
584 - generic metadata API
589 - DV encoder, DV muxer
590 - Microsoft RLE video decoder
591 - Microsoft Video-1 decoder
592 - Apple Animation (RLE) decoder
593 - Apple Graphics (SMC) decoder
594 - Apple Video (RPZA) decoder
596 - Sega FILM (CPK) file demuxer
597 - Westwood multimedia support (VQA & AUD files)
598 - Id Quake II CIN playback support
600 - FLIC playback support
601 - RealVideo 2.0 (RV20) decoder
602 - Duck TrueMotion v1 (DUCK) video decoder
603 - Sierra VMD demuxer and video decoder
604 - MSZH and ZLIB decoder support
608 - rate distortion optimal cbp support
609 - rate distorted optimal ac prediction for MPEG-4
610 - rate distorted optimal lambda->qp support
611 - AAC encoding with libfaac
612 - Sunplus JPEG codec (SP5X) support
613 - use Lagrange multipler instead of QP for ratecontrol
614 - Theora/VP3 decoding support
615 - XA and ADX ADPCM codecs
616 - export MPEG-2 active display area / pan scan
617 - Add support for configuring with IBM XLC
618 - floating point AAN DCT
619 - initial support for zygo video (not complete)
621 - new audio/video parser API
623 - av_read_frame() and av_seek_frame() support
624 - missing last frame fixes
625 - seek by mouse in ffplay
626 - noise reduction of DCT coefficients
627 - H.263 OBMC & 4MV support
628 - H.263 alternative inter vlc support
630 - H.263 slice structured mode
631 - interlaced DCT support for MPEG-2 encoding
632 - stuffing to stay above min_bitrate
633 - MB type & QP visualization
634 - frame stepping for ffplay
635 - interlaced motion estimation
636 - alternate scantable support
637 - SVCD scan offset support
640 - quantizer noise shaping
641 - G.726 ADPCM audio codec
643 - multithreaded/SMP motion estimation
644 - multithreaded/SMP encoding for MPEG-1/MPEG-2/MPEG-4/H.263
645 - multithreaded/SMP decoding for MPEG-2
647 - Metrowerks CodeWarrior suppport
648 - H.263+ custom pcf support
649 - nicer output for 'ffmpeg -formats'
651 - SGI image format, encoding and decoding
652 - H.264 loop filter support
653 - H.264 CABAC support
654 - nicer looking arrows for the motion vector visualization
655 - improved VCD support
656 - audio timestamp drift compensation
657 - MPEG-2 YUV 422/444 support
658 - polyphase kaiser windowed sinc and blackman nuttall windowed sinc audio resample
659 - better image scaling
661 - correctly interleave packets during encoding
662 - VIS optimized motion compensation
663 - intra_dc_precision>0 encoding support
664 - support reuse of motion vectors/MB types/field select values of the source video
665 - more accurate deblock filter
667 - many optimizations and bugfixes
668 - FunCom ISS audio file demuxer and according ADPCM decoding
673 - MPEG-2 video encoding (Michael)
674 - Id RoQ playback subsystem (Mike Melanson and Tim Ferguson)
675 - Wing Commander III Movie (.mve) file playback subsystem (Mike Melanson
677 - Xan DPCM audio decoder (Mario Brito)
678 - Interplay MVE playback subsystem (Mike Melanson)
679 - Duck DK3 and DK4 ADPCM audio decoders (Mike Melanson)
684 - RealAudio 1.0 (14_4) and 2.0 (28_8) native decoders. Author unknown, code from mplayerhq
685 (originally from public domain player for Amiga at http://www.honeypot.net/audio)
686 - current version now also compiles with older GCC (Fabrice)
687 - 4X multimedia playback system including 4xm file demuxer (Mike
688 Melanson), and 4X video and audio codecs (Michael)
689 - Creative YUV (CYUV) decoder (Mike Melanson)
690 - FFV1 codec (our very simple lossless intra only codec, compresses much better
691 than HuffYUV) (Michael)
692 - ASV1 (Asus), H.264, Intel indeo3 codecs have been added (various)
693 - tiny PNG encoder and decoder, tiny GIF decoder, PAM decoder (PPM with
694 alpha support), JPEG YUV colorspace support. (Fabrice Bellard)
695 - ffplay has been replaced with a newer version which uses SDL (optionally)
696 for multiplatform support (Fabrice)
697 - Sorenson Version 3 codec (SVQ3) support has been added (decoding only) - donated
699 - AMR format has been added (Johannes Carlsson)
700 - 3GP support has been added (Johannes Carlsson)
701 - VP3 codec has been added (Mike Melanson)
702 - more MPEG-1/2 fixes
703 - better multiplatform support, MS Visual Studio fixes (various)
704 - AltiVec optimizations (Magnus Damn and others)
705 - SH4 processor support has been added (BERO)
706 - new public interfaces (avcodec_get_pix_fmt) (Roman Shaposhnick)
707 - VOB streaming support (Brian Foley)
708 - better MP3 autodetection (Andriy Rysin)
709 - qpel encoding (Michael)
710 - 4mv+b frames encoding finally fixed (Michael)
711 - chroma ME (Michael)
712 - 5 comparison functions for ME (Michael)
713 - B-frame encoding speedup (Michael)
714 - WMV2 codec (unfinished - Michael)
715 - user specified diamond size for EPZS (Michael)
716 - Playstation STR playback subsystem, still experimental (Mike and Michael)
717 - ASV2 codec (Michael)
718 - CLJR decoder (Alex)
720 .. And lots more new enhancements and fixes.
725 - completely new integer only MPEG audio layer 1/2/3 decoder rewritten
727 - Recoded DCT and motion vector search with gcc (no longer depends on nasm)
728 - fix quantization bug in AC3 encoder
729 - added PCM codecs and format. Corrected WAV/AVI/ASF PCM issues
730 - added prototype ffplay program
731 - added GOB header parsing on H.263/H.263+ decoder (Juanjo)
732 - bug fix on MCBPC tables of H.263 (Juanjo)
733 - bug fix on DC coefficients of H.263 (Juanjo)
734 - added Advanced Prediction Mode on H.263/H.263+ decoder (Juanjo)
735 - now we can decode H.263 streams found in QuickTime files (Juanjo)
736 - now we can decode H.263 streams found in VIVO v1 files(Juanjo)
737 - preliminary RTP "friendly" mode for H.263/H.263+ coding. (Juanjo)
738 - added GOB header for H.263/H.263+ coding on RTP mode (Juanjo)
739 - now H.263 picture size is returned on the first decoded frame (Juanjo)
740 - added first regression tests
741 - added MPEG-2 TS demuxer
742 - new demux API for libav
743 - more accurate and faster IDCT (Michael)
744 - faster and entropy-controlled motion search (Michael)
745 - two pass video encoding (Michael)
746 - new video rate control (Michael)
747 - added MSMPEG4V1, MSMPEGV2 and WMV1 support (Michael)
748 - great performance improvement of video encoders and decoders (Michael)
749 - new and faster bit readers and vlc parsers (Michael)
750 - high quality encoding mode: tries all macroblock/VLC types (Michael)
751 - added DV video decoder
752 - preliminary RTP/RTSP support in ffserver and libavformat
753 - H.263+ AIC decoding/encoding support (Juanjo)
754 - VCD MPEG-PS mode (Juanjo)
755 - PSNR stuff (Juanjo)
756 - simple stats output (Juanjo)
757 - 16-bit and 15-bit RGB/BGR/GBR support (Bisqwit)
762 - some header fixes (Zdenek Kabelac <kabi at informatics.muni.cz>)
763 - many MMX optimizations (Nick Kurshev <nickols_k at mail.ru>)
764 - added configure system (actually a small shell script)
765 - added MPEG audio layer 1/2/3 decoding using LGPL'ed mpglib by
766 Michael Hipp (temporary solution - waiting for integer only
768 - fixed VIDIOCSYNC interrupt
769 - added Intel H.263 decoding support ('I263' AVI fourCC)
770 - added Real Video 1.0 decoding (needs further testing)
771 - simplified image formats again. Added PGM format (=grey
772 pgm). Renamed old PGM to PGMYUV.
773 - fixed msmpeg4 slice issues (tell me if you still find problems)
774 - fixed OpenDivX bugs with newer versions (added VOL header decoding)
775 - added support for MPlayer interface
776 - added macroblock skip optimization
777 - added MJPEG decoder
778 - added mmx/mmxext IDCT from libmpeg2
779 - added pgmyuvpipe, ppm, and ppm_pipe formats (original patch by Celer
780 <celer at shell.scrypt.net>)
781 - added pixel format conversion layer (e.g. for MJPEG or PPM)
782 - added deinterlacing option
784 - MPEG-4 vol header fixes (Jonathan Marsden <snmjbm at pacbell.net>)
785 - ARM optimizations (Lionel Ulmer <lionel.ulmer at free.fr>).
786 - Windows porting of file converter
787 - added MJPEG raw format (input/ouput)
788 - added JPEG image format support (input/output)
793 - fixed some std header definitions (Bjorn Lindgren
794 <bjorn.e.lindgren at telia.com>).
795 - added MPEG demuxer (MPEG-1 and 2 compatible).
797 - added prototype RM demuxer
798 - added AC3 decoding (done with libac3 by Aaron Holtzman)
799 - added decoding codec parameter guessing (.e.g. for MPEG, because the
800 header does not include them)
801 - fixed header generation in MPEG-1, AVI and ASF muxer: wmplayer can now
802 play them (only tested video)
803 - fixed H.263 white bug
804 - fixed phase rounding in img resample filter
805 - add MMX code for polyphase img resample filter
806 - added CPU autodetection
807 - added generic title/author/copyright/comment string handling (ASF and RM
809 - added SWF demux to extract MP3 track (not usable yet because no MP3
811 - added fractional frame rate support
812 - codecs are no longer searched by read_header() (should fix ffserver
818 - BGR24 patch (initial patch by Jeroen Vreeken <pe1rxq at amsat.org>)
819 - fixed raw yuv output
820 - added motion rounding support in MPEG-4
821 - fixed motion bug rounding in MSMPEG4
822 - added B-frame handling in video core
823 - added full MPEG-1 decoding support
824 - added partial (frame only) MPEG-2 support
825 - changed the FOURCC code for H.263 to "U263" to be able to see the
826 +AVI/H.263 file with the UB Video H.263+ decoder. MPlayer works with
827 this +codec ;) (JuanJo).
828 - Halfpel motion estimation after MB type selection (JuanJo)
829 - added pgm and .Y.U.V output format
830 - suppressed 'img:' protocol. Simply use: /tmp/test%d.[pgm|Y] as input or
832 - added pgmpipe I/O format (original patch from Martin Aumueller
833 <lists at reserv.at>, but changed completely since we use a format
834 instead of a protocol)
839 - added H.263/MPEG-4/MSMPEG4 decoding support. MPEG-4 decoding support
840 (for OpenDivX) is almost complete: 8x8 MVs and rounding are
841 missing. MSMPEG4 support is complete.
842 - added prototype MPEG-1 decoder. Only I- and P-frames handled yet (it
843 can decode ffmpeg MPEGs :-)).
844 - added libavcodec API documentation (see apiexample.c).
845 - fixed image polyphase bug (the bottom of some images could be
847 - added support for non clipped motion vectors (decoding only)
848 and image sizes non-multiple of 16
849 - added support for AC prediction (decoding only)
850 - added file overwrite confirmation (can be disabled with -y)
851 - added custom size picture to H.263 using H.263+ (Juanjo)
856 - added MSMPEG4 (aka DivX) compatible encoder. Changed default codec
857 of AVI and ASF to DIV3.
858 - added -me option to set motion estimation method
859 (default=log). suppressed redundant -hq option.
860 - added options -acodec and -vcodec to force a given codec (useful for
863 - improved dct_quantize speed
864 - factorized some motion estimation code
869 - removing grab code from ffserver and moved it to ffmpeg. Added
870 multistream support to ffmpeg.
871 - added timeshifting support for live feeds (option ?date=xxx in the
873 - added high quality image resize code with polyphase filter (need
874 mmx/see optimization). Enable multiple image size support in ffserver.
875 - added multi live feed support in ffserver
876 - suppressed master feature from ffserver (it should be done with an
877 external program which opens the .ffm url and writes it to another
879 - added preliminary support for video stream parsing (WAV and AVI half
880 done). Added proper support for audio/video file conversion in
882 - added preliminary support for video file sending from ffserver
883 - redesigning I/O subsystem: now using URL based input and output
885 - added WAV format support
886 - added "tty user interface" to ffmpeg to stop grabbing gracefully
887 - added MMX/SSE optimizations to SAD (Sums of Absolutes Differences)
888 (Juan J. Sierralta P. a.k.a. "Juanjo" <juanjo at atmlab.utfsm.cl>)
889 - added MMX DCT from mpeg2_movie 1.5 (Juanjo)
890 - added new motion estimation algorithms, log and phods (Juanjo)
891 - changed directories: libav for format handling, libavcodec for
897 - added stereo in MPEG audio encoder
902 - added 'high quality' mode which use motion vectors. It can be used in
903 real time at low resolution.
904 - fixed rounding problems which caused quality problems at high
905 bitrates and large GOP size
908 version 0.3.2: small fixes
914 version 0.3.1: added avi/divx support
917 - added MPEG-4 codec compatible with OpenDivX. It is based on the H.263 codec
918 - added sound for flash format (not tested)
921 version 0.3: initial public release