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