1 Entries are sorted chronologically from oldest to youngest within each release,
2 releases are sorted from youngest to oldest.
5 - metadata (INFO tag) support in WAV muxer
6 - support for building DLLs using MSVC
7 - ashowinfo audio filter
12 - XWD encoder and decoder
13 - Support for fragmentation in the mov/mp4 muxer
14 - ISMV (Smooth Streaming) muxer
15 - CDXL demuxer and decoder
16 - Apple ProRes encoder
17 - Sun Rasterfile Encoder
19 - ID3v2 attached pictures reading and writing
20 - WMA Lossless decoder
22 - RealAudio Lossless decoder
24 - drop support for avconv without libavfilter
25 - add libavresample audio conversion library
26 - audio filters support in libavfilter and avconv
30 - avprobe output is now standard INI or JSON. The old format can still
33 - channelsplit audio filter
34 - RTMPT protocol support
35 - iLBC encoding/decoding via libilbc
36 - Microsoft Screen 1 decoder
38 - audio channel mapping filter
39 - Microsoft ATC Screen decoder
41 - TechSmith Screen Codec 2 decoder
42 - AAC encoding via libfdk-aac
43 - Microsoft Expression Encoder Screen decoder
44 - RTMPS protocol support
45 - RTMPTS protocol support
46 - JPEG 2000 encoding support through OpenJPEG
47 - G.723.1 demuxer and decoder
48 - RTMPE protocol support
49 - RTMPTE protocol support
50 - Canopus Lossless Codec decoder
51 - avconv -shortest option is now per-output file,
52 -pass and -passlogfile are now per-output stream
54 - Microsoft Screen 2 decoder
55 - RTP depacketization of JPEG
56 - Smooth Streaming live segmenter muxer
57 - RTP packetization of JPEG
58 - Opus decoder and encoder using libopus
59 - remove -same_quant, it hasn't worked for years
60 - support for building with MSVC
71 - Automatic thread count based on detection number of (available) CPU cores
72 - Deprecate libpostproc. If desired, the switch --enable-postproc will
73 enable it but it may be removed in a later Libav release.
74 - rv34: frame-level multi-threading
75 - optimized iMDCT transform on x86 using SSE for for mpegaudiodec
81 - Flash Screen Video 2 decoder
82 - ffplay/ffprobe/ffserver renamed to avplay/avprobe/avserver
83 - ffmpeg deprecated, added avconv, which is almost the same for now, except
84 for a few incompatible changes in the options, which will hopefully make them
85 easier to use. The changes are:
86 * The options placement is now strictly enforced! While in theory the
87 options for ffmpeg should be given in [input options] -i INPUT [output
88 options] OUTPUT order, in practice it was possible to give output options
89 before the -i and it mostly worked. Except when it didn't - the behavior was
90 a bit inconsistent. In avconv, it is not possible to mix input and output
91 options. All non-global options are reset after an input or output filename.
92 * All per-file options are now truly per-file - they apply only to the next
93 input or output file and specifying different values for different files
94 will now work properly (notably -ss and -t options).
95 * All per-stream options are now truly per-stream - it is possible to
96 specify which stream(s) should a given option apply to. See the Stream
97 specifiers section in the avconv manual for details.
98 * In ffmpeg some options (like -newvideo/-newaudio/...) are irregular in the
99 sense that they're specified after the output filename instead of before,
100 like all other options. In avconv this irregularity is removed, all options
101 apply to the next input or output file.
102 * -newvideo/-newaudio/-newsubtitle options were removed. Not only were they
103 irregular and highly confusing, they were also redundant. In avconv the -map
104 option will create new streams in the output file and map input streams to
105 them. E.g. avconv -i INPUT -map 0 OUTPUT will create an output stream for
106 each stream in the first input file.
107 * The -map option now has slightly different and more powerful syntax:
108 + Colons (':') are used to separate file index/stream type/stream index
109 instead of dots. Comma (',') is used to separate the sync stream instead
110 of colon.. This is done for consistency with other options.
111 + It's possible to specify stream type. E.g. -map 0:a:2 creates an
112 output stream from the third input audio stream.
113 + Omitting the stream index now maps all the streams of the given type,
114 not just the first. E.g. -map 0:s creates output streams for all the
115 subtitle streams in the first input file.
116 + Since -map can now match multiple streams, negative mappings were
117 introduced. Negative mappings disable some streams from an already
118 defined map. E.g. '-map 0 -map -0:a:1' means 'create output streams for
119 all the stream in the first input file, except for the second audio
121 * There is a new option -c (or -codec) for choosing the decoder/encoder to
122 use, which allows to precisely specify target stream(s) consistently with
123 other options. E.g. -c:v lib264 sets the codec for all video streams, -c:a:0
124 libvorbis sets the codec for the first audio stream and -c copy copies all
125 the streams without reencoding. Old -vcodec/-acodec/-scodec options are now
127 * It is now possible to precisely specify which stream should an AVOption
128 apply to. E.g. -b:v:0 2M sets the bitrate for the first video stream, while
129 -b:a 128k sets the bitrate for all audio streams. Note that the old -ab 128k
130 syntax is deprecated and will stop working soon.
131 * -map_chapters now takes only an input file index and applies to the next
132 output file. This is consistent with how all the other options work.
133 * -map_metadata now takes only an input metadata specifier and applies to
134 the next output file. Output metadata specifier is now part of the option
135 name, similarly to the AVOptions/map/codec feature above.
136 * -metadata can now be used to set metadata on streams and chapters, e.g.
137 -metadata:s:1 language=eng sets the language of the first stream to 'eng'.
138 This made -vlang/-alang/-slang options redundant, so they were removed.
139 * -qscale option now uses stream specifiers and applies to all streams, not
140 just video. I.e. plain -qscale number would now apply to all streams. To get
141 the old behavior, use -qscale:v. Also there is now a shortcut -q for -qscale
142 and -aq is now an alias for -q:a.
143 * -vbsf/-absf/-sbsf options were removed and replaced by a -bsf option which
144 uses stream specifiers. Use -bsf:v/a/s instead of the old options.
145 * -itsscale option now uses stream specifiers, so its argument is only the
147 * -intra option was removed, use -g 0 for the same effect.
148 * -psnr option was removed, use -flags +psnr for the same effect.
149 * -vf option is now an alias to the new -filter option, which uses stream specifiers.
150 * -vframes/-aframes/-dframes options are now aliases to the new -frames option.
151 * -vtag/-atag/-stag options are now aliases to the new -tag option.
153 - Windows Media Image decoder
157 - libcdio-paranoia input device for audio CD grabbing
159 - Apple ProRes decoder
160 - CELT in Ogg demuxing
161 - VC-1 interlaced decoding
162 - lut, lutrgb, and lutyuv filters
165 - Speex encoding via libspeex
166 - 4:2:2 H.264 decoding support
167 - 4:2:2 and 4:4:4 H.264 encoding with libx264
168 - Pulseaudio input device
169 - replacement Indeo 3 decoder
170 - TLS/SSL and HTTPS protocol support
171 - AVOptions API rewritten and documented
172 - most of CODEC_FLAG2_*, some CODEC_FLAG_* and many codec-specific fields in
173 AVCodecContext deprecated. Codec private options should be used instead.
174 - Properly working defaults in libx264 wrapper, support for native presets.
175 - Encrypted OMA files support
176 - Discworld II BMV decoding support
178 - OS X Video Decoder Acceleration (VDA) support
179 - CRI ADX audio format muxer and demuxer
180 - Playstation Portable PMP format demuxer
181 - PCM format support in OMA demuxer
183 - Dxtory capture format decoder
184 - v410 QuickTime uncompressed 4:4:4 10-bit encoder and decoder
186 - Simple segmenting muxer
193 - E-AC-3 audio encoder
194 - ac3enc: add channel coupling support
195 - floating-point sample format support for (E-)AC-3, DCA, AAC, Vorbis decoders
196 - H.264/MPEG frame-level multithreading
197 - av_metadata_* functions renamed to av_dict_* and moved to libavutil
198 - 4:4:4 H.264 decoding support
199 - 10-bit H.264 optimizations for x86
200 - bump libswscale for recently reported ABI break
205 - VP8 frame-level multithreading
206 - NEON optimizations for VP8
207 - removed a lot of deprecated API cruft
208 - FFT and IMDCT optimizations for AVX (Sandy Bridge) processors
210 - SMPTE 302M AES3 audio decoder
211 - ffmpeg no longer quits after the 'q' key is pressed; use 'ctrl+c' instead
212 - 9bit and 10bit per sample support in the H.264 decoder
217 - WebM support in Matroska de/muxer
218 - low overhead Ogg muxing
220 - VP8 de/encoding via libvpx
221 - Demuxer for On2's IVF format
222 - Pictor/PC Paint decoder
224 - libfaad2 wrapper removed
225 - DTS-ES extension (XCh) decoding support
227 - RTSP tunneling over HTTP
228 - RTP depacketization of SVQ3
229 - -strict inofficial replaced by -strict unofficial
230 - ffplay -exitonkeydown and -exitonmousedown options added
231 - native GSM / GSM MS decoder
232 - RTP depacketization of QDM2
233 - ANSI/ASCII art playback system
234 - Lego Mindstorms RSO de/muxer
235 - SubRip subtitle file muxer and demuxer
236 - Chinese AVS encoding via libxavs
237 - ffprobe -show_packets option added
238 - RTP packetization of Theora and Vorbis
239 - RTP depacketization of MP4A-LATM
240 - RTP packetization and depacketization of VP8
242 - Apple HTTP Live Streaming demuxer
245 - G.722 ADPCM audio encoder/decoder
248 - frei0r wrapper filter
249 - change crop filter syntax to width:height:x:y
250 - make the crop filter accept parametric expressions
251 - make ffprobe accept AVFormatContext options
254 - Demuxer for Leitch/Harris' VR native stream format (LXF)
255 - RTP depacketization of the X-QT QuickTime format
256 - SAP (Session Announcement Protocol, RFC 2974) muxer and demuxer
258 - ffmpeg -crop* options removed
259 - transpose filter added
260 - ffmpeg -force_key_frames option added
261 - demuxer for receiving raw rtp:// URLs without an SDP description
262 - single stream LATM/LOAS decoder
263 - setpts filter added
264 - Win64 support for optimized x86 assembly functions
265 - MJPEG/AVI1 to JPEG/JFIF bitstream filter
266 - ASS subtitle encoder and decoder
267 - IEC 61937 encapsulation for E-AC-3, TrueHD, DTS-HD (for HDMI passthrough)
268 - overlay filter added
269 - rename aspect filter to setdar, and pixelaspect to setsar
271 - Mobotix .mxg demuxer
272 - frei0r source added
273 - hqdn3d filter added
274 - RTP depacketization of QCELP
276 - gradfun filter added
278 - replace the ocv_smooth filter with a more generic ocv filter
279 - Windows Televison (WTV) demuxer
280 - FFmpeg metadata format muxer and demuxer
281 - SubRip (srt) subtitle decoder
282 - floating-point AC-3 encoder added
284 - ffmpeg -copytb option added
286 - Wing Commander IV movies decoder added
288 - Bink version 'b' audio and video decoder
289 - Bitmap Brothers JV playback system
290 - Apple HTTP Live Streaming protocol handler
291 - sndio support for playback and record
292 - Linux framebuffer input device added
293 - Chronomaster DFA decoder
294 - Mobotix MxPEG decoder
295 - AAC encoding via libvo-aacenc
296 - AMR-WB encoding via libvo-amrwbenc
298 - fieldorder video filter added
303 - PB-frame decoding for H.263
304 - deprecated vhook subsystem removed
305 - deprecated old scaler removed
307 - Alpha channel scaler
309 - RTP packetization of H.263
310 - RTP packetization of AMR
311 - RTP depacketization of Vorbis
312 - CorePNG decoding support
313 - Cook multichannel decoding support
314 - introduced avlanguage helpers in libavformat
315 - 8088flex TMV demuxer and decoder
316 - per-stream language-tags extraction in asfdec
317 - V210 decoder and encoder
318 - remaining GPL parts in AC-3 decoder converted to LGPL
320 - SoX native format muxer and demuxer
321 - AMR-NB decoding/encoding, AMR-WB decoding via OpenCORE libraries
323 - Electronic Arts Madcow decoder
324 - DivX (XSUB) subtitle encoder
325 - nonfree libamr support for AMR-NB/WB decoding/encoding removed
326 - experimental AAC encoder
327 - RTP depacketization of ASF and RTSP from WMS servers
328 - RTMP support in libavformat
329 - noX handling for OPT_BOOL X options
331 - IEC-61937 compatible Muxer
333 - Bluray (PGS) subtitle decoder
334 - LPCM support in MPEG-TS (HDMV RID as found on Blu-ray disks)
336 - Core Audio Format demuxer
338 - MD STUDIO audio demuxer
339 - RF64 support in WAV demuxer
340 - MPEG-4 Audio Lossless Coding (ALS) decoder
341 - -formats option split into -formats, -codecs, -bsfs, and -protocols
343 - CDG demuxer and decoder
345 - Auravision Aura 1 and 2 decoders
346 - Deluxe Paint Animation playback system
348 - Adobe Filmstrip muxer and demuxer
349 - RTP depacketization of H.263
350 - Bink demuxer and audio/video decoders
351 - enable symbol versioning by default for linkers that support it
352 - IFF PBM/ILBM bitmap decoder
355 - RTP depacketization of AMR
361 - Kega Game Video (KGV1) decoder
362 - VorbisComment writing for FLAC, Ogg FLAC and Ogg Speex files
363 - RTP depacketization of Theora
364 - HTTP Digest authentication
365 - RTMP/RTMPT/RTMPS/RTMPE/RTMPTE protocol support via librtmp
366 - Psygnosis YOP demuxer and video decoder
367 - spectral extension support in the E-AC-3 decoder
368 - unsharp video filter
369 - RTP hinting in the mov/3gp/mp4 muxer
370 - Dirac in Ogg demuxing
371 - seek to keyframes in Ogg
372 - 4:2:2 and 4:4:4 Theora decoding
373 - 35% faster VP3/Theora decoding
374 - faster AAC decoding
375 - faster H.264 decoding
376 - RealAudio 1.0 (14.4K) encoder
381 - DV50 AKA DVCPRO50 encoder, decoder, muxer and demuxer
382 - TechSmith Camtasia (TSCC) video decoder
383 - IBM Ultimotion (ULTI) video decoder
384 - Sierra Online audio file demuxer and decoder
385 - Apple QuickDraw (qdrw) video decoder
386 - Creative ADPCM audio decoder (16 bits as well as 8 bits schemes)
387 - Electronic Arts Multimedia (WVE/UV2/etc.) file demuxer
388 - Miro VideoXL (VIXL) video decoder
389 - H.261 video encoder
391 - Nullsoft Video (NSV) file demuxer
392 - Shorten audio decoder
394 - Apple Lossless Audio Codec (ALAC) decoder
395 - Winnov WNV1 video decoder
396 - Autodesk Animator Studio Codec (AASC) decoder
397 - Indeo 2 video decoder
398 - Fraps FPS1 video decoder
399 - Snow video encoder/decoder
400 - Sonic audio encoder/decoder
401 - Vorbis audio decoder
402 - Macromedia ADPCM decoder
403 - Duck TrueMotion 2 video decoder
404 - support for decoding FLX and DTA extensions in FLIC files
405 - H.264 custom quantization matrices support
406 - ffserver fixed, it should now be usable again
408 - Real Cooker audio decoder
409 - TrueSpeech audio decoder
410 - WMA2 audio decoder fixed, now all files should play correctly
411 - RealAudio 14.4 and 28.8 decoders fixed
413 - build system improvements
414 - tabs and trailing whitespace removed from the codebase
415 - CamStudio video decoder
416 - AIFF/AIFF-C audio format, encoding and decoding
417 - ADTS AAC file reading and writing
418 - Creative VOC file reading and writing
419 - American Laser Games multimedia (*.mm) playback system
420 - Zip Motion Blocks Video decoder
421 - improved Theora/VP3 decoder
422 - True Audio (TTA) decoder
423 - AVS demuxer and video decoder
425 - Smacker demuxer and decoder
426 - NuppelVideo/MythTV demuxer and RTjpeg decoder
428 - MPEG-2 intra VLC support
429 - MPEG-2 4:2:2 encoder
430 - Flash Screen Video decoder
432 - Chinese AVS decoder
435 - VC-1/WMV3/WMV9 video decoder
438 - VMware video decoder
441 - WavPack lossless audio decoder
442 - Targa (.TGA) picture decoder
443 - Vorbis audio encoder
444 - Delphine Software .cin demuxer/audio and video decoder
445 - Tiertex .seq demuxer/video decoder
447 - TIFF picture encoder and decoder
448 - GIF picture decoder
449 - Intel Music Coder decoder
450 - Zip Motion Blocks Video encoder
452 - Flash Screen Video encoder
453 - Theora encoding via libtheora
456 - GSM-MS encoder and decoder
458 - DXA demuxer and decoder
460 - Gamecube movie (.THP) playback system
461 - Blackfin optimizations
462 - Interplay C93 demuxer and video decoder
463 - Bethsoft VID demuxer and video decoder
466 - V.Flash PTX decoder
467 - RoQ muxer, RoQ audio encoder
468 - Renderware TXD demuxer and decoder
469 - extern C declarations for C++ removed from headers
470 - sws_flags command line option
474 - OS/2 support removed and restored again
477 - additional SPARC (VIS) optimizations
479 - slice-based parallel H.264 decoding
480 - Monkey's Audio demuxer and decoder
481 - AMV audio and video decoder
483 - H.264 PAFF decoding
484 - Nellymoser ASAO decoder
485 - Beam Software SIFF demuxer and decoder
486 - libvorbis Vorbis decoding removed in favor of native decoder
487 - IntraX8 (J-Frame) subdecoder for WMV2 and VC-1
488 - Ogg (Theora, Vorbis and FLAC) muxer
489 - The "device" muxers and demuxers are now in a new libavdevice library
490 - PC Paintbrush PCX decoder
491 - Sun Rasterfile decoder
492 - TechnoTrend PVA demuxer
493 - Linux Media Labs MPEG-4 (LMLM4) demuxer
494 - AVM2 (Flash 9) SWF muxer
495 - QT variant of IMA ADPCM encoder
497 - iPod/iPhone compatible mp4 muxer
499 - MSN TCP Webcam stream demuxer
500 - RL2 demuxer / decoder
503 - non-recursive Makefiles
505 - MAXIS EA XA (.xa) demuxer / decoder
509 - Electronic Arts CMV decoder
510 - Motion Pixels Video decoder
511 - Motion Pixels MVI demuxer
512 - removed animated GIF decoder/demuxer
513 - D-Cinema audio muxer
514 - Electronic Arts TGV decoder
515 - Apple Lossless Audio Codec (ALAC) encoder
517 - floating point PCM encoder/decoder
519 - DV100 AKA DVCPRO HD decoder and demuxer
520 - E-AC-3 support added to AC-3 decoder
521 - Nellymoser ASAO encoder
522 - ASS and SSA demuxer and muxer
523 - liba52 wrapper removed
524 - SVQ3 watermark decoding support
525 - Speex decoding via libspeex
526 - Electronic Arts TGQ decoder
528 - QCELP / PureVoice decoder
530 - hybrid WavPack support
531 - R3D REDCODE demuxer
532 - ALSA support for playback and record
533 - Electronic Arts TQI decoder
534 - OpenJPEG based JPEG 2000 decoder
535 - NC (NC4600) camera file demuxer
536 - Gopher client support
538 - generic metadata API
543 - DV encoder, DV muxer
544 - Microsoft RLE video decoder
545 - Microsoft Video-1 decoder
546 - Apple Animation (RLE) decoder
547 - Apple Graphics (SMC) decoder
548 - Apple Video (RPZA) decoder
550 - Sega FILM (CPK) file demuxer
551 - Westwood multimedia support (VQA & AUD files)
552 - Id Quake II CIN playback support
554 - FLIC playback support
555 - RealVideo 2.0 (RV20) decoder
556 - Duck TrueMotion v1 (DUCK) video decoder
557 - Sierra VMD demuxer and video decoder
558 - MSZH and ZLIB decoder support
562 - rate distortion optimal cbp support
563 - rate distorted optimal ac prediction for MPEG-4
564 - rate distorted optimal lambda->qp support
565 - AAC encoding with libfaac
566 - Sunplus JPEG codec (SP5X) support
567 - use Lagrange multipler instead of QP for ratecontrol
568 - Theora/VP3 decoding support
569 - XA and ADX ADPCM codecs
570 - export MPEG-2 active display area / pan scan
571 - Add support for configuring with IBM XLC
572 - floating point AAN DCT
573 - initial support for zygo video (not complete)
575 - new audio/video parser API
577 - av_read_frame() and av_seek_frame() support
578 - missing last frame fixes
579 - seek by mouse in ffplay
580 - noise reduction of DCT coefficients
581 - H.263 OBMC & 4MV support
582 - H.263 alternative inter vlc support
584 - H.263 slice structured mode
585 - interlaced DCT support for MPEG-2 encoding
586 - stuffing to stay above min_bitrate
587 - MB type & QP visualization
588 - frame stepping for ffplay
589 - interlaced motion estimation
590 - alternate scantable support
591 - SVCD scan offset support
594 - quantizer noise shaping
595 - G.726 ADPCM audio codec
597 - multithreaded/SMP motion estimation
598 - multithreaded/SMP encoding for MPEG-1/MPEG-2/MPEG-4/H.263
599 - multithreaded/SMP decoding for MPEG-2
601 - Metrowerks CodeWarrior suppport
602 - H.263+ custom pcf support
603 - nicer output for 'ffmpeg -formats'
605 - SGI image format, encoding and decoding
606 - H.264 loop filter support
607 - H.264 CABAC support
608 - nicer looking arrows for the motion vector visualization
609 - improved VCD support
610 - audio timestamp drift compensation
611 - MPEG-2 YUV 422/444 support
612 - polyphase kaiser windowed sinc and blackman nuttall windowed sinc audio resample
613 - better image scaling
615 - correctly interleave packets during encoding
616 - VIS optimized motion compensation
617 - intra_dc_precision>0 encoding support
618 - support reuse of motion vectors/MB types/field select values of the source video
619 - more accurate deblock filter
621 - many optimizations and bugfixes
622 - FunCom ISS audio file demuxer and according ADPCM decoding
627 - MPEG-2 video encoding (Michael)
628 - Id RoQ playback subsystem (Mike Melanson and Tim Ferguson)
629 - Wing Commander III Movie (.mve) file playback subsystem (Mike Melanson
631 - Xan DPCM audio decoder (Mario Brito)
632 - Interplay MVE playback subsystem (Mike Melanson)
633 - Duck DK3 and DK4 ADPCM audio decoders (Mike Melanson)
638 - RealAudio 1.0 (14_4) and 2.0 (28_8) native decoders. Author unknown, code from mplayerhq
639 (originally from public domain player for Amiga at http://www.honeypot.net/audio)
640 - current version now also compiles with older GCC (Fabrice)
641 - 4X multimedia playback system including 4xm file demuxer (Mike
642 Melanson), and 4X video and audio codecs (Michael)
643 - Creative YUV (CYUV) decoder (Mike Melanson)
644 - FFV1 codec (our very simple lossless intra only codec, compresses much better
645 than HuffYUV) (Michael)
646 - ASV1 (Asus), H.264, Intel indeo3 codecs have been added (various)
647 - tiny PNG encoder and decoder, tiny GIF decoder, PAM decoder (PPM with
648 alpha support), JPEG YUV colorspace support. (Fabrice Bellard)
649 - ffplay has been replaced with a newer version which uses SDL (optionally)
650 for multiplatform support (Fabrice)
651 - Sorenson Version 3 codec (SVQ3) support has been added (decoding only) - donated
653 - AMR format has been added (Johannes Carlsson)
654 - 3GP support has been added (Johannes Carlsson)
655 - VP3 codec has been added (Mike Melanson)
656 - more MPEG-1/2 fixes
657 - better multiplatform support, MS Visual Studio fixes (various)
658 - AltiVec optimizations (Magnus Damn and others)
659 - SH4 processor support has been added (BERO)
660 - new public interfaces (avcodec_get_pix_fmt) (Roman Shaposhnick)
661 - VOB streaming support (Brian Foley)
662 - better MP3 autodetection (Andriy Rysin)
663 - qpel encoding (Michael)
664 - 4mv+b frames encoding finally fixed (Michael)
665 - chroma ME (Michael)
666 - 5 comparison functions for ME (Michael)
667 - B-frame encoding speedup (Michael)
668 - WMV2 codec (unfinished - Michael)
669 - user specified diamond size for EPZS (Michael)
670 - Playstation STR playback subsystem, still experimental (Mike and Michael)
671 - ASV2 codec (Michael)
672 - CLJR decoder (Alex)
674 .. And lots more new enhancements and fixes.
679 - completely new integer only MPEG audio layer 1/2/3 decoder rewritten
681 - Recoded DCT and motion vector search with gcc (no longer depends on nasm)
682 - fix quantization bug in AC3 encoder
683 - added PCM codecs and format. Corrected WAV/AVI/ASF PCM issues
684 - added prototype ffplay program
685 - added GOB header parsing on H.263/H.263+ decoder (Juanjo)
686 - bug fix on MCBPC tables of H.263 (Juanjo)
687 - bug fix on DC coefficients of H.263 (Juanjo)
688 - added Advanced Prediction Mode on H.263/H.263+ decoder (Juanjo)
689 - now we can decode H.263 streams found in QuickTime files (Juanjo)
690 - now we can decode H.263 streams found in VIVO v1 files(Juanjo)
691 - preliminary RTP "friendly" mode for H.263/H.263+ coding. (Juanjo)
692 - added GOB header for H.263/H.263+ coding on RTP mode (Juanjo)
693 - now H.263 picture size is returned on the first decoded frame (Juanjo)
694 - added first regression tests
695 - added MPEG-2 TS demuxer
696 - new demux API for libav
697 - more accurate and faster IDCT (Michael)
698 - faster and entropy-controlled motion search (Michael)
699 - two pass video encoding (Michael)
700 - new video rate control (Michael)
701 - added MSMPEG4V1, MSMPEGV2 and WMV1 support (Michael)
702 - great performance improvement of video encoders and decoders (Michael)
703 - new and faster bit readers and vlc parsers (Michael)
704 - high quality encoding mode: tries all macroblock/VLC types (Michael)
705 - added DV video decoder
706 - preliminary RTP/RTSP support in ffserver and libavformat
707 - H.263+ AIC decoding/encoding support (Juanjo)
708 - VCD MPEG-PS mode (Juanjo)
709 - PSNR stuff (Juanjo)
710 - simple stats output (Juanjo)
711 - 16-bit and 15-bit RGB/BGR/GBR support (Bisqwit)
716 - some header fixes (Zdenek Kabelac <kabi at informatics.muni.cz>)
717 - many MMX optimizations (Nick Kurshev <nickols_k at mail.ru>)
718 - added configure system (actually a small shell script)
719 - added MPEG audio layer 1/2/3 decoding using LGPL'ed mpglib by
720 Michael Hipp (temporary solution - waiting for integer only
722 - fixed VIDIOCSYNC interrupt
723 - added Intel H.263 decoding support ('I263' AVI fourCC)
724 - added Real Video 1.0 decoding (needs further testing)
725 - simplified image formats again. Added PGM format (=grey
726 pgm). Renamed old PGM to PGMYUV.
727 - fixed msmpeg4 slice issues (tell me if you still find problems)
728 - fixed OpenDivX bugs with newer versions (added VOL header decoding)
729 - added support for MPlayer interface
730 - added macroblock skip optimization
731 - added MJPEG decoder
732 - added mmx/mmxext IDCT from libmpeg2
733 - added pgmyuvpipe, ppm, and ppm_pipe formats (original patch by Celer
734 <celer at shell.scrypt.net>)
735 - added pixel format conversion layer (e.g. for MJPEG or PPM)
736 - added deinterlacing option
738 - MPEG-4 vol header fixes (Jonathan Marsden <snmjbm at pacbell.net>)
739 - ARM optimizations (Lionel Ulmer <lionel.ulmer at free.fr>).
740 - Windows porting of file converter
741 - added MJPEG raw format (input/ouput)
742 - added JPEG image format support (input/output)
747 - fixed some std header definitions (Bjorn Lindgren
748 <bjorn.e.lindgren at telia.com>).
749 - added MPEG demuxer (MPEG-1 and 2 compatible).
751 - added prototype RM demuxer
752 - added AC3 decoding (done with libac3 by Aaron Holtzman)
753 - added decoding codec parameter guessing (.e.g. for MPEG, because the
754 header does not include them)
755 - fixed header generation in MPEG-1, AVI and ASF muxer: wmplayer can now
756 play them (only tested video)
757 - fixed H.263 white bug
758 - fixed phase rounding in img resample filter
759 - add MMX code for polyphase img resample filter
760 - added CPU autodetection
761 - added generic title/author/copyright/comment string handling (ASF and RM
763 - added SWF demux to extract MP3 track (not usable yet because no MP3
765 - added fractional frame rate support
766 - codecs are no longer searched by read_header() (should fix ffserver
772 - BGR24 patch (initial patch by Jeroen Vreeken <pe1rxq at amsat.org>)
773 - fixed raw yuv output
774 - added motion rounding support in MPEG-4
775 - fixed motion bug rounding in MSMPEG4
776 - added B-frame handling in video core
777 - added full MPEG-1 decoding support
778 - added partial (frame only) MPEG-2 support
779 - changed the FOURCC code for H.263 to "U263" to be able to see the
780 +AVI/H.263 file with the UB Video H.263+ decoder. MPlayer works with
781 this +codec ;) (JuanJo).
782 - Halfpel motion estimation after MB type selection (JuanJo)
783 - added pgm and .Y.U.V output format
784 - suppressed 'img:' protocol. Simply use: /tmp/test%d.[pgm|Y] as input or
786 - added pgmpipe I/O format (original patch from Martin Aumueller
787 <lists at reserv.at>, but changed completely since we use a format
788 instead of a protocol)
793 - added H.263/MPEG-4/MSMPEG4 decoding support. MPEG-4 decoding support
794 (for OpenDivX) is almost complete: 8x8 MVs and rounding are
795 missing. MSMPEG4 support is complete.
796 - added prototype MPEG-1 decoder. Only I- and P-frames handled yet (it
797 can decode ffmpeg MPEGs :-)).
798 - added libavcodec API documentation (see apiexample.c).
799 - fixed image polyphase bug (the bottom of some images could be
801 - added support for non clipped motion vectors (decoding only)
802 and image sizes non-multiple of 16
803 - added support for AC prediction (decoding only)
804 - added file overwrite confirmation (can be disabled with -y)
805 - added custom size picture to H.263 using H.263+ (Juanjo)
810 - added MSMPEG4 (aka DivX) compatible encoder. Changed default codec
811 of AVI and ASF to DIV3.
812 - added -me option to set motion estimation method
813 (default=log). suppressed redundant -hq option.
814 - added options -acodec and -vcodec to force a given codec (useful for
817 - improved dct_quantize speed
818 - factorized some motion estimation code
823 - removing grab code from ffserver and moved it to ffmpeg. Added
824 multistream support to ffmpeg.
825 - added timeshifting support for live feeds (option ?date=xxx in the
827 - added high quality image resize code with polyphase filter (need
828 mmx/see optimization). Enable multiple image size support in ffserver.
829 - added multi live feed support in ffserver
830 - suppressed master feature from ffserver (it should be done with an
831 external program which opens the .ffm url and writes it to another
833 - added preliminary support for video stream parsing (WAV and AVI half
834 done). Added proper support for audio/video file conversion in
836 - added preliminary support for video file sending from ffserver
837 - redesigning I/O subsystem: now using URL based input and output
839 - added WAV format support
840 - added "tty user interface" to ffmpeg to stop grabbing gracefully
841 - added MMX/SSE optimizations to SAD (Sums of Absolutes Differences)
842 (Juan J. Sierralta P. a.k.a. "Juanjo" <juanjo at atmlab.utfsm.cl>)
843 - added MMX DCT from mpeg2_movie 1.5 (Juanjo)
844 - added new motion estimation algorithms, log and phods (Juanjo)
845 - changed directories: libav for format handling, libavcodec for
851 - added stereo in MPEG audio encoder
856 - added 'high quality' mode which use motion vectors. It can be used in
857 real time at low resolution.
858 - fixed rounding problems which caused quality problems at high
859 bitrates and large GOP size
862 version 0.3.2: small fixes
868 version 0.3.1: added avi/divx support
871 - added MPEG-4 codec compatible with OpenDivX. It is based on the H.263 codec
872 - added sound for flash format (not tested)
875 version 0.3: initial public release