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
17 - av_basename and av_dirname
18 - adobe and limelight publisher authentication in RTMP
19 - VDPAU hardware acceleration through normal hwaccel
24 - ashowinfo audio filter
25 - 24-bit FLAC encoding
27 - deprecated the avconv -vol option. the volume filter is to be used instead.
28 - multi-channel ALAC encoding up to 7.1
29 - TAK demuxer, parser, and decoder
30 - adaptive frame-level multithreading for H.264
34 - metadata (INFO tag) support in WAV muxer
35 - support for building DLLs using MSVC
36 - remove avserver daemon mode
37 - support building on the Plan 9 operating system
38 - ffv1: support version 1.3
43 - XWD encoder and decoder
44 - Support for fragmentation in the mov/mp4 muxer
45 - ISMV (Smooth Streaming) muxer
46 - CDXL demuxer and decoder
47 - Apple ProRes encoder
48 - Sun Rasterfile Encoder
50 - ID3v2 attached pictures reading and writing
51 - WMA Lossless decoder
53 - RealAudio Lossless decoder
55 - drop support for avconv without libavfilter
56 - add libavresample audio conversion library
57 - audio filters support in libavfilter and avconv
61 - avprobe output is now standard INI or JSON. The old format can still
64 - channelsplit audio filter
65 - RTMPT protocol support
66 - iLBC encoding/decoding via libilbc
67 - Microsoft Screen 1 decoder
69 - audio channel mapping filter
70 - Microsoft ATC Screen decoder
72 - TechSmith Screen Codec 2 decoder
73 - AAC encoding via libfdk-aac
74 - Microsoft Expression Encoder Screen decoder
75 - RTMPS protocol support
76 - RTMPTS protocol support
77 - JPEG 2000 encoding support through OpenJPEG
78 - G.723.1 demuxer and decoder
79 - RTMPE protocol support
80 - RTMPTE protocol support
81 - Canopus Lossless Codec decoder
82 - avconv -shortest option is now per-output file,
83 -pass and -passlogfile are now per-output stream
85 - Microsoft Screen 2 decoder
86 - RTP depacketization of JPEG
87 - Smooth Streaming live segmenter muxer
88 - RTP packetization of JPEG
89 - Opus decoder and encoder using libopus
90 - remove -same_quant, it hasn't worked for years
91 - support for building with MSVC
102 - Automatic thread count based on detection number of (available) CPU cores
103 - Deprecate libpostproc. If desired, the switch --enable-postproc will
104 enable it but it may be removed in a later Libav release.
105 - rv34: frame-level multi-threading
106 - optimized iMDCT transform on x86 using SSE for for mpegaudiodec
112 - Flash Screen Video 2 decoder
113 - ffplay/ffprobe/ffserver renamed to avplay/avprobe/avserver
114 - ffmpeg deprecated, added avconv, which is almost the same for now, except
115 for a few incompatible changes in the options, which will hopefully make them
116 easier to use. The changes are:
117 * The options placement is now strictly enforced! While in theory the
118 options for ffmpeg should be given in [input options] -i INPUT [output
119 options] OUTPUT order, in practice it was possible to give output options
120 before the -i and it mostly worked. Except when it didn't - the behavior was
121 a bit inconsistent. In avconv, it is not possible to mix input and output
122 options. All non-global options are reset after an input or output filename.
123 * All per-file options are now truly per-file - they apply only to the next
124 input or output file and specifying different values for different files
125 will now work properly (notably -ss and -t options).
126 * All per-stream options are now truly per-stream - it is possible to
127 specify which stream(s) should a given option apply to. See the Stream
128 specifiers section in the avconv manual for details.
129 * In ffmpeg some options (like -newvideo/-newaudio/...) are irregular in the
130 sense that they're specified after the output filename instead of before,
131 like all other options. In avconv this irregularity is removed, all options
132 apply to the next input or output file.
133 * -newvideo/-newaudio/-newsubtitle options were removed. Not only were they
134 irregular and highly confusing, they were also redundant. In avconv the -map
135 option will create new streams in the output file and map input streams to
136 them. E.g. avconv -i INPUT -map 0 OUTPUT will create an output stream for
137 each stream in the first input file.
138 * The -map option now has slightly different and more powerful syntax:
139 + Colons (':') are used to separate file index/stream type/stream index
140 instead of dots. Comma (',') is used to separate the sync stream instead
141 of colon.. This is done for consistency with other options.
142 + It's possible to specify stream type. E.g. -map 0:a:2 creates an
143 output stream from the third input audio stream.
144 + Omitting the stream index now maps all the streams of the given type,
145 not just the first. E.g. -map 0:s creates output streams for all the
146 subtitle streams in the first input file.
147 + Since -map can now match multiple streams, negative mappings were
148 introduced. Negative mappings disable some streams from an already
149 defined map. E.g. '-map 0 -map -0:a:1' means 'create output streams for
150 all the stream in the first input file, except for the second audio
152 * There is a new option -c (or -codec) for choosing the decoder/encoder to
153 use, which allows to precisely specify target stream(s) consistently with
154 other options. E.g. -c:v lib264 sets the codec for all video streams, -c:a:0
155 libvorbis sets the codec for the first audio stream and -c copy copies all
156 the streams without reencoding. Old -vcodec/-acodec/-scodec options are now
158 * It is now possible to precisely specify which stream should an AVOption
159 apply to. E.g. -b:v:0 2M sets the bitrate for the first video stream, while
160 -b:a 128k sets the bitrate for all audio streams. Note that the old -ab 128k
161 syntax is deprecated and will stop working soon.
162 * -map_chapters now takes only an input file index and applies to the next
163 output file. This is consistent with how all the other options work.
164 * -map_metadata now takes only an input metadata specifier and applies to
165 the next output file. Output metadata specifier is now part of the option
166 name, similarly to the AVOptions/map/codec feature above.
167 * -metadata can now be used to set metadata on streams and chapters, e.g.
168 -metadata:s:1 language=eng sets the language of the first stream to 'eng'.
169 This made -vlang/-alang/-slang options redundant, so they were removed.
170 * -qscale option now uses stream specifiers and applies to all streams, not
171 just video. I.e. plain -qscale number would now apply to all streams. To get
172 the old behavior, use -qscale:v. Also there is now a shortcut -q for -qscale
173 and -aq is now an alias for -q:a.
174 * -vbsf/-absf/-sbsf options were removed and replaced by a -bsf option which
175 uses stream specifiers. Use -bsf:v/a/s instead of the old options.
176 * -itsscale option now uses stream specifiers, so its argument is only the
178 * -intra option was removed, use -g 0 for the same effect.
179 * -psnr option was removed, use -flags +psnr for the same effect.
180 * -vf option is now an alias to the new -filter option, which uses stream specifiers.
181 * -vframes/-aframes/-dframes options are now aliases to the new -frames option.
182 * -vtag/-atag/-stag options are now aliases to the new -tag option.
184 - Windows Media Image decoder
188 - libcdio-paranoia input device for audio CD grabbing
190 - Apple ProRes decoder
191 - CELT in Ogg demuxing
192 - VC-1 interlaced decoding
193 - lut, lutrgb, and lutyuv filters
196 - Speex encoding via libspeex
197 - 4:2:2 H.264 decoding support
198 - 4:2:2 and 4:4:4 H.264 encoding with libx264
199 - Pulseaudio input device
200 - replacement Indeo 3 decoder
201 - TLS/SSL and HTTPS protocol support
202 - AVOptions API rewritten and documented
203 - most of CODEC_FLAG2_*, some CODEC_FLAG_* and many codec-specific fields in
204 AVCodecContext deprecated. Codec private options should be used instead.
205 - Properly working defaults in libx264 wrapper, support for native presets.
206 - Encrypted OMA files support
207 - Discworld II BMV decoding support
209 - OS X Video Decoder Acceleration (VDA) support
210 - CRI ADX audio format muxer and demuxer
211 - Playstation Portable PMP format demuxer
212 - PCM format support in OMA demuxer
214 - Dxtory capture format decoder
215 - v410 QuickTime uncompressed 4:4:4 10-bit encoder and decoder
217 - Simple segmenting muxer
224 - E-AC-3 audio encoder
225 - ac3enc: add channel coupling support
226 - floating-point sample format support for (E-)AC-3, DCA, AAC, Vorbis decoders
227 - H.264/MPEG frame-level multithreading
228 - av_metadata_* functions renamed to av_dict_* and moved to libavutil
229 - 4:4:4 H.264 decoding support
230 - 10-bit H.264 optimizations for x86
231 - bump libswscale for recently reported ABI break
236 - VP8 frame-level multithreading
237 - NEON optimizations for VP8
238 - removed a lot of deprecated API cruft
239 - FFT and IMDCT optimizations for AVX (Sandy Bridge) processors
241 - SMPTE 302M AES3 audio decoder
242 - ffmpeg no longer quits after the 'q' key is pressed; use 'ctrl+c' instead
243 - 9bit and 10bit per sample support in the H.264 decoder
248 - WebM support in Matroska de/muxer
249 - low overhead Ogg muxing
251 - VP8 de/encoding via libvpx
252 - Demuxer for On2's IVF format
253 - Pictor/PC Paint decoder
255 - libfaad2 wrapper removed
256 - DTS-ES extension (XCh) decoding support
258 - RTSP tunneling over HTTP
259 - RTP depacketization of SVQ3
260 - -strict inofficial replaced by -strict unofficial
261 - ffplay -exitonkeydown and -exitonmousedown options added
262 - native GSM / GSM MS decoder
263 - RTP depacketization of QDM2
264 - ANSI/ASCII art playback system
265 - Lego Mindstorms RSO de/muxer
266 - SubRip subtitle file muxer and demuxer
267 - Chinese AVS encoding via libxavs
268 - ffprobe -show_packets option added
269 - RTP packetization of Theora and Vorbis
270 - RTP depacketization of MP4A-LATM
271 - RTP packetization and depacketization of VP8
273 - Apple HTTP Live Streaming demuxer
276 - G.722 ADPCM audio encoder/decoder
279 - frei0r wrapper filter
280 - change crop filter syntax to width:height:x:y
281 - make the crop filter accept parametric expressions
282 - make ffprobe accept AVFormatContext options
285 - Demuxer for Leitch/Harris' VR native stream format (LXF)
286 - RTP depacketization of the X-QT QuickTime format
287 - SAP (Session Announcement Protocol, RFC 2974) muxer and demuxer
289 - ffmpeg -crop* options removed
290 - transpose filter added
291 - ffmpeg -force_key_frames option added
292 - demuxer for receiving raw rtp:// URLs without an SDP description
293 - single stream LATM/LOAS decoder
294 - setpts filter added
295 - Win64 support for optimized x86 assembly functions
296 - MJPEG/AVI1 to JPEG/JFIF bitstream filter
297 - ASS subtitle encoder and decoder
298 - IEC 61937 encapsulation for E-AC-3, TrueHD, DTS-HD (for HDMI passthrough)
299 - overlay filter added
300 - rename aspect filter to setdar, and pixelaspect to setsar
302 - Mobotix .mxg demuxer
303 - frei0r source added
304 - hqdn3d filter added
305 - RTP depacketization of QCELP
307 - gradfun filter added
309 - replace the ocv_smooth filter with a more generic ocv filter
310 - Windows Televison (WTV) demuxer
311 - FFmpeg metadata format muxer and demuxer
312 - SubRip (srt) subtitle decoder
313 - floating-point AC-3 encoder added
315 - ffmpeg -copytb option added
317 - Wing Commander IV movies decoder added
319 - Bink version 'b' audio and video decoder
320 - Bitmap Brothers JV playback system
321 - Apple HTTP Live Streaming protocol handler
322 - sndio support for playback and record
323 - Linux framebuffer input device added
324 - Chronomaster DFA decoder
325 - Mobotix MxPEG decoder
326 - AAC encoding via libvo-aacenc
327 - AMR-WB encoding via libvo-amrwbenc
329 - fieldorder video filter added
334 - PB-frame decoding for H.263
335 - deprecated vhook subsystem removed
336 - deprecated old scaler removed
338 - Alpha channel scaler
340 - RTP packetization of H.263
341 - RTP packetization of AMR
342 - RTP depacketization of Vorbis
343 - CorePNG decoding support
344 - Cook multichannel decoding support
345 - introduced avlanguage helpers in libavformat
346 - 8088flex TMV demuxer and decoder
347 - per-stream language-tags extraction in asfdec
348 - V210 decoder and encoder
349 - remaining GPL parts in AC-3 decoder converted to LGPL
351 - SoX native format muxer and demuxer
352 - AMR-NB decoding/encoding, AMR-WB decoding via OpenCORE libraries
354 - Electronic Arts Madcow decoder
355 - DivX (XSUB) subtitle encoder
356 - nonfree libamr support for AMR-NB/WB decoding/encoding removed
357 - experimental AAC encoder
358 - RTP depacketization of ASF and RTSP from WMS servers
359 - RTMP support in libavformat
360 - noX handling for OPT_BOOL X options
362 - IEC-61937 compatible Muxer
364 - Bluray (PGS) subtitle decoder
365 - LPCM support in MPEG-TS (HDMV RID as found on Blu-ray disks)
367 - Core Audio Format demuxer
369 - MD STUDIO audio demuxer
370 - RF64 support in WAV demuxer
371 - MPEG-4 Audio Lossless Coding (ALS) decoder
372 - -formats option split into -formats, -codecs, -bsfs, and -protocols
374 - CDG demuxer and decoder
376 - Auravision Aura 1 and 2 decoders
377 - Deluxe Paint Animation playback system
379 - Adobe Filmstrip muxer and demuxer
380 - RTP depacketization of H.263
381 - Bink demuxer and audio/video decoders
382 - enable symbol versioning by default for linkers that support it
383 - IFF PBM/ILBM bitmap decoder
386 - RTP depacketization of AMR
392 - Kega Game Video (KGV1) decoder
393 - VorbisComment writing for FLAC, Ogg FLAC and Ogg Speex files
394 - RTP depacketization of Theora
395 - HTTP Digest authentication
396 - RTMP/RTMPT/RTMPS/RTMPE/RTMPTE protocol support via librtmp
397 - Psygnosis YOP demuxer and video decoder
398 - spectral extension support in the E-AC-3 decoder
399 - unsharp video filter
400 - RTP hinting in the mov/3gp/mp4 muxer
401 - Dirac in Ogg demuxing
402 - seek to keyframes in Ogg
403 - 4:2:2 and 4:4:4 Theora decoding
404 - 35% faster VP3/Theora decoding
405 - faster AAC decoding
406 - faster H.264 decoding
407 - RealAudio 1.0 (14.4K) encoder
412 - DV50 AKA DVCPRO50 encoder, decoder, muxer and demuxer
413 - TechSmith Camtasia (TSCC) video decoder
414 - IBM Ultimotion (ULTI) video decoder
415 - Sierra Online audio file demuxer and decoder
416 - Apple QuickDraw (qdrw) video decoder
417 - Creative ADPCM audio decoder (16 bits as well as 8 bits schemes)
418 - Electronic Arts Multimedia (WVE/UV2/etc.) file demuxer
419 - Miro VideoXL (VIXL) video decoder
420 - H.261 video encoder
422 - Nullsoft Video (NSV) file demuxer
423 - Shorten audio decoder
425 - Apple Lossless Audio Codec (ALAC) decoder
426 - Winnov WNV1 video decoder
427 - Autodesk Animator Studio Codec (AASC) decoder
428 - Indeo 2 video decoder
429 - Fraps FPS1 video decoder
430 - Snow video encoder/decoder
431 - Sonic audio encoder/decoder
432 - Vorbis audio decoder
433 - Macromedia ADPCM decoder
434 - Duck TrueMotion 2 video decoder
435 - support for decoding FLX and DTA extensions in FLIC files
436 - H.264 custom quantization matrices support
437 - ffserver fixed, it should now be usable again
439 - Real Cooker audio decoder
440 - TrueSpeech audio decoder
441 - WMA2 audio decoder fixed, now all files should play correctly
442 - RealAudio 14.4 and 28.8 decoders fixed
444 - build system improvements
445 - tabs and trailing whitespace removed from the codebase
446 - CamStudio video decoder
447 - AIFF/AIFF-C audio format, encoding and decoding
448 - ADTS AAC file reading and writing
449 - Creative VOC file reading and writing
450 - American Laser Games multimedia (*.mm) playback system
451 - Zip Motion Blocks Video decoder
452 - improved Theora/VP3 decoder
453 - True Audio (TTA) decoder
454 - AVS demuxer and video decoder
456 - Smacker demuxer and decoder
457 - NuppelVideo/MythTV demuxer and RTjpeg decoder
459 - MPEG-2 intra VLC support
460 - MPEG-2 4:2:2 encoder
461 - Flash Screen Video decoder
463 - Chinese AVS decoder
466 - VC-1/WMV3/WMV9 video decoder
469 - VMware video decoder
472 - WavPack lossless audio decoder
473 - Targa (.TGA) picture decoder
474 - Vorbis audio encoder
475 - Delphine Software .cin demuxer/audio and video decoder
476 - Tiertex .seq demuxer/video decoder
478 - TIFF picture encoder and decoder
479 - GIF picture decoder
480 - Intel Music Coder decoder
481 - Zip Motion Blocks Video encoder
483 - Flash Screen Video encoder
484 - Theora encoding via libtheora
487 - GSM-MS encoder and decoder
489 - DXA demuxer and decoder
491 - Gamecube movie (.THP) playback system
492 - Blackfin optimizations
493 - Interplay C93 demuxer and video decoder
494 - Bethsoft VID demuxer and video decoder
497 - V.Flash PTX decoder
498 - RoQ muxer, RoQ audio encoder
499 - Renderware TXD demuxer and decoder
500 - extern C declarations for C++ removed from headers
501 - sws_flags command line option
505 - OS/2 support removed and restored again
508 - additional SPARC (VIS) optimizations
510 - slice-based parallel H.264 decoding
511 - Monkey's Audio demuxer and decoder
512 - AMV audio and video decoder
514 - H.264 PAFF decoding
515 - Nellymoser ASAO decoder
516 - Beam Software SIFF demuxer and decoder
517 - libvorbis Vorbis decoding removed in favor of native decoder
518 - IntraX8 (J-Frame) subdecoder for WMV2 and VC-1
519 - Ogg (Theora, Vorbis and FLAC) muxer
520 - The "device" muxers and demuxers are now in a new libavdevice library
521 - PC Paintbrush PCX decoder
522 - Sun Rasterfile decoder
523 - TechnoTrend PVA demuxer
524 - Linux Media Labs MPEG-4 (LMLM4) demuxer
525 - AVM2 (Flash 9) SWF muxer
526 - QT variant of IMA ADPCM encoder
528 - iPod/iPhone compatible mp4 muxer
530 - MSN TCP Webcam stream demuxer
531 - RL2 demuxer / decoder
534 - non-recursive Makefiles
536 - MAXIS EA XA (.xa) demuxer / decoder
540 - Electronic Arts CMV decoder
541 - Motion Pixels Video decoder
542 - Motion Pixels MVI demuxer
543 - removed animated GIF decoder/demuxer
544 - D-Cinema audio muxer
545 - Electronic Arts TGV decoder
546 - Apple Lossless Audio Codec (ALAC) encoder
548 - floating point PCM encoder/decoder
550 - DV100 AKA DVCPRO HD decoder and demuxer
551 - E-AC-3 support added to AC-3 decoder
552 - Nellymoser ASAO encoder
553 - ASS and SSA demuxer and muxer
554 - liba52 wrapper removed
555 - SVQ3 watermark decoding support
556 - Speex decoding via libspeex
557 - Electronic Arts TGQ decoder
559 - QCELP / PureVoice decoder
561 - hybrid WavPack support
562 - R3D REDCODE demuxer
563 - ALSA support for playback and record
564 - Electronic Arts TQI decoder
565 - OpenJPEG based JPEG 2000 decoder
566 - NC (NC4600) camera file demuxer
567 - Gopher client support
569 - generic metadata API
574 - DV encoder, DV muxer
575 - Microsoft RLE video decoder
576 - Microsoft Video-1 decoder
577 - Apple Animation (RLE) decoder
578 - Apple Graphics (SMC) decoder
579 - Apple Video (RPZA) decoder
581 - Sega FILM (CPK) file demuxer
582 - Westwood multimedia support (VQA & AUD files)
583 - Id Quake II CIN playback support
585 - FLIC playback support
586 - RealVideo 2.0 (RV20) decoder
587 - Duck TrueMotion v1 (DUCK) video decoder
588 - Sierra VMD demuxer and video decoder
589 - MSZH and ZLIB decoder support
593 - rate distortion optimal cbp support
594 - rate distorted optimal ac prediction for MPEG-4
595 - rate distorted optimal lambda->qp support
596 - AAC encoding with libfaac
597 - Sunplus JPEG codec (SP5X) support
598 - use Lagrange multipler instead of QP for ratecontrol
599 - Theora/VP3 decoding support
600 - XA and ADX ADPCM codecs
601 - export MPEG-2 active display area / pan scan
602 - Add support for configuring with IBM XLC
603 - floating point AAN DCT
604 - initial support for zygo video (not complete)
606 - new audio/video parser API
608 - av_read_frame() and av_seek_frame() support
609 - missing last frame fixes
610 - seek by mouse in ffplay
611 - noise reduction of DCT coefficients
612 - H.263 OBMC & 4MV support
613 - H.263 alternative inter vlc support
615 - H.263 slice structured mode
616 - interlaced DCT support for MPEG-2 encoding
617 - stuffing to stay above min_bitrate
618 - MB type & QP visualization
619 - frame stepping for ffplay
620 - interlaced motion estimation
621 - alternate scantable support
622 - SVCD scan offset support
625 - quantizer noise shaping
626 - G.726 ADPCM audio codec
628 - multithreaded/SMP motion estimation
629 - multithreaded/SMP encoding for MPEG-1/MPEG-2/MPEG-4/H.263
630 - multithreaded/SMP decoding for MPEG-2
632 - Metrowerks CodeWarrior suppport
633 - H.263+ custom pcf support
634 - nicer output for 'ffmpeg -formats'
636 - SGI image format, encoding and decoding
637 - H.264 loop filter support
638 - H.264 CABAC support
639 - nicer looking arrows for the motion vector visualization
640 - improved VCD support
641 - audio timestamp drift compensation
642 - MPEG-2 YUV 422/444 support
643 - polyphase kaiser windowed sinc and blackman nuttall windowed sinc audio resample
644 - better image scaling
646 - correctly interleave packets during encoding
647 - VIS optimized motion compensation
648 - intra_dc_precision>0 encoding support
649 - support reuse of motion vectors/MB types/field select values of the source video
650 - more accurate deblock filter
652 - many optimizations and bugfixes
653 - FunCom ISS audio file demuxer and according ADPCM decoding
658 - MPEG-2 video encoding (Michael)
659 - Id RoQ playback subsystem (Mike Melanson and Tim Ferguson)
660 - Wing Commander III Movie (.mve) file playback subsystem (Mike Melanson
662 - Xan DPCM audio decoder (Mario Brito)
663 - Interplay MVE playback subsystem (Mike Melanson)
664 - Duck DK3 and DK4 ADPCM audio decoders (Mike Melanson)
669 - RealAudio 1.0 (14_4) and 2.0 (28_8) native decoders. Author unknown, code from mplayerhq
670 (originally from public domain player for Amiga at http://www.honeypot.net/audio)
671 - current version now also compiles with older GCC (Fabrice)
672 - 4X multimedia playback system including 4xm file demuxer (Mike
673 Melanson), and 4X video and audio codecs (Michael)
674 - Creative YUV (CYUV) decoder (Mike Melanson)
675 - FFV1 codec (our very simple lossless intra only codec, compresses much better
676 than HuffYUV) (Michael)
677 - ASV1 (Asus), H.264, Intel indeo3 codecs have been added (various)
678 - tiny PNG encoder and decoder, tiny GIF decoder, PAM decoder (PPM with
679 alpha support), JPEG YUV colorspace support. (Fabrice Bellard)
680 - ffplay has been replaced with a newer version which uses SDL (optionally)
681 for multiplatform support (Fabrice)
682 - Sorenson Version 3 codec (SVQ3) support has been added (decoding only) - donated
684 - AMR format has been added (Johannes Carlsson)
685 - 3GP support has been added (Johannes Carlsson)
686 - VP3 codec has been added (Mike Melanson)
687 - more MPEG-1/2 fixes
688 - better multiplatform support, MS Visual Studio fixes (various)
689 - AltiVec optimizations (Magnus Damn and others)
690 - SH4 processor support has been added (BERO)
691 - new public interfaces (avcodec_get_pix_fmt) (Roman Shaposhnick)
692 - VOB streaming support (Brian Foley)
693 - better MP3 autodetection (Andriy Rysin)
694 - qpel encoding (Michael)
695 - 4mv+b frames encoding finally fixed (Michael)
696 - chroma ME (Michael)
697 - 5 comparison functions for ME (Michael)
698 - B-frame encoding speedup (Michael)
699 - WMV2 codec (unfinished - Michael)
700 - user specified diamond size for EPZS (Michael)
701 - Playstation STR playback subsystem, still experimental (Mike and Michael)
702 - ASV2 codec (Michael)
703 - CLJR decoder (Alex)
705 .. And lots more new enhancements and fixes.
710 - completely new integer only MPEG audio layer 1/2/3 decoder rewritten
712 - Recoded DCT and motion vector search with gcc (no longer depends on nasm)
713 - fix quantization bug in AC3 encoder
714 - added PCM codecs and format. Corrected WAV/AVI/ASF PCM issues
715 - added prototype ffplay program
716 - added GOB header parsing on H.263/H.263+ decoder (Juanjo)
717 - bug fix on MCBPC tables of H.263 (Juanjo)
718 - bug fix on DC coefficients of H.263 (Juanjo)
719 - added Advanced Prediction Mode on H.263/H.263+ decoder (Juanjo)
720 - now we can decode H.263 streams found in QuickTime files (Juanjo)
721 - now we can decode H.263 streams found in VIVO v1 files(Juanjo)
722 - preliminary RTP "friendly" mode for H.263/H.263+ coding. (Juanjo)
723 - added GOB header for H.263/H.263+ coding on RTP mode (Juanjo)
724 - now H.263 picture size is returned on the first decoded frame (Juanjo)
725 - added first regression tests
726 - added MPEG-2 TS demuxer
727 - new demux API for libav
728 - more accurate and faster IDCT (Michael)
729 - faster and entropy-controlled motion search (Michael)
730 - two pass video encoding (Michael)
731 - new video rate control (Michael)
732 - added MSMPEG4V1, MSMPEGV2 and WMV1 support (Michael)
733 - great performance improvement of video encoders and decoders (Michael)
734 - new and faster bit readers and vlc parsers (Michael)
735 - high quality encoding mode: tries all macroblock/VLC types (Michael)
736 - added DV video decoder
737 - preliminary RTP/RTSP support in ffserver and libavformat
738 - H.263+ AIC decoding/encoding support (Juanjo)
739 - VCD MPEG-PS mode (Juanjo)
740 - PSNR stuff (Juanjo)
741 - simple stats output (Juanjo)
742 - 16-bit and 15-bit RGB/BGR/GBR support (Bisqwit)
747 - some header fixes (Zdenek Kabelac <kabi at informatics.muni.cz>)
748 - many MMX optimizations (Nick Kurshev <nickols_k at mail.ru>)
749 - added configure system (actually a small shell script)
750 - added MPEG audio layer 1/2/3 decoding using LGPL'ed mpglib by
751 Michael Hipp (temporary solution - waiting for integer only
753 - fixed VIDIOCSYNC interrupt
754 - added Intel H.263 decoding support ('I263' AVI fourCC)
755 - added Real Video 1.0 decoding (needs further testing)
756 - simplified image formats again. Added PGM format (=grey
757 pgm). Renamed old PGM to PGMYUV.
758 - fixed msmpeg4 slice issues (tell me if you still find problems)
759 - fixed OpenDivX bugs with newer versions (added VOL header decoding)
760 - added support for MPlayer interface
761 - added macroblock skip optimization
762 - added MJPEG decoder
763 - added mmx/mmxext IDCT from libmpeg2
764 - added pgmyuvpipe, ppm, and ppm_pipe formats (original patch by Celer
765 <celer at shell.scrypt.net>)
766 - added pixel format conversion layer (e.g. for MJPEG or PPM)
767 - added deinterlacing option
769 - MPEG-4 vol header fixes (Jonathan Marsden <snmjbm at pacbell.net>)
770 - ARM optimizations (Lionel Ulmer <lionel.ulmer at free.fr>).
771 - Windows porting of file converter
772 - added MJPEG raw format (input/ouput)
773 - added JPEG image format support (input/output)
778 - fixed some std header definitions (Bjorn Lindgren
779 <bjorn.e.lindgren at telia.com>).
780 - added MPEG demuxer (MPEG-1 and 2 compatible).
782 - added prototype RM demuxer
783 - added AC3 decoding (done with libac3 by Aaron Holtzman)
784 - added decoding codec parameter guessing (.e.g. for MPEG, because the
785 header does not include them)
786 - fixed header generation in MPEG-1, AVI and ASF muxer: wmplayer can now
787 play them (only tested video)
788 - fixed H.263 white bug
789 - fixed phase rounding in img resample filter
790 - add MMX code for polyphase img resample filter
791 - added CPU autodetection
792 - added generic title/author/copyright/comment string handling (ASF and RM
794 - added SWF demux to extract MP3 track (not usable yet because no MP3
796 - added fractional frame rate support
797 - codecs are no longer searched by read_header() (should fix ffserver
803 - BGR24 patch (initial patch by Jeroen Vreeken <pe1rxq at amsat.org>)
804 - fixed raw yuv output
805 - added motion rounding support in MPEG-4
806 - fixed motion bug rounding in MSMPEG4
807 - added B-frame handling in video core
808 - added full MPEG-1 decoding support
809 - added partial (frame only) MPEG-2 support
810 - changed the FOURCC code for H.263 to "U263" to be able to see the
811 +AVI/H.263 file with the UB Video H.263+ decoder. MPlayer works with
812 this +codec ;) (JuanJo).
813 - Halfpel motion estimation after MB type selection (JuanJo)
814 - added pgm and .Y.U.V output format
815 - suppressed 'img:' protocol. Simply use: /tmp/test%d.[pgm|Y] as input or
817 - added pgmpipe I/O format (original patch from Martin Aumueller
818 <lists at reserv.at>, but changed completely since we use a format
819 instead of a protocol)
824 - added H.263/MPEG-4/MSMPEG4 decoding support. MPEG-4 decoding support
825 (for OpenDivX) is almost complete: 8x8 MVs and rounding are
826 missing. MSMPEG4 support is complete.
827 - added prototype MPEG-1 decoder. Only I- and P-frames handled yet (it
828 can decode ffmpeg MPEGs :-)).
829 - added libavcodec API documentation (see apiexample.c).
830 - fixed image polyphase bug (the bottom of some images could be
832 - added support for non clipped motion vectors (decoding only)
833 and image sizes non-multiple of 16
834 - added support for AC prediction (decoding only)
835 - added file overwrite confirmation (can be disabled with -y)
836 - added custom size picture to H.263 using H.263+ (Juanjo)
841 - added MSMPEG4 (aka DivX) compatible encoder. Changed default codec
842 of AVI and ASF to DIV3.
843 - added -me option to set motion estimation method
844 (default=log). suppressed redundant -hq option.
845 - added options -acodec and -vcodec to force a given codec (useful for
848 - improved dct_quantize speed
849 - factorized some motion estimation code
854 - removing grab code from ffserver and moved it to ffmpeg. Added
855 multistream support to ffmpeg.
856 - added timeshifting support for live feeds (option ?date=xxx in the
858 - added high quality image resize code with polyphase filter (need
859 mmx/see optimization). Enable multiple image size support in ffserver.
860 - added multi live feed support in ffserver
861 - suppressed master feature from ffserver (it should be done with an
862 external program which opens the .ffm url and writes it to another
864 - added preliminary support for video stream parsing (WAV and AVI half
865 done). Added proper support for audio/video file conversion in
867 - added preliminary support for video file sending from ffserver
868 - redesigning I/O subsystem: now using URL based input and output
870 - added WAV format support
871 - added "tty user interface" to ffmpeg to stop grabbing gracefully
872 - added MMX/SSE optimizations to SAD (Sums of Absolutes Differences)
873 (Juan J. Sierralta P. a.k.a. "Juanjo" <juanjo at atmlab.utfsm.cl>)
874 - added MMX DCT from mpeg2_movie 1.5 (Juanjo)
875 - added new motion estimation algorithms, log and phods (Juanjo)
876 - changed directories: libav for format handling, libavcodec for
882 - added stereo in MPEG audio encoder
887 - added 'high quality' mode which use motion vectors. It can be used in
888 real time at low resolution.
889 - fixed rounding problems which caused quality problems at high
890 bitrates and large GOP size
893 version 0.3.2: small fixes
899 version 0.3.1: added avi/divx support
902 - added MPEG-4 codec compatible with OpenDivX. It is based on the H.263 codec
903 - added sound for flash format (not tested)
906 version 0.3: initial public release