1 Entries are sorted chronologically from oldest to youngest within each release,
2 releases are sorted from youngest to oldest.
6 - support ID3v2 tags in ASF files
7 - reference-counting for AVFrame and AVPacket data
8 - avconv now fails when input options are used for output file
10 - new avconv options -filter_script and -filter_complex_script, which allow a
11 filtergraph description to be read from a file
12 - uniform options syntax across all filters
13 - new interlace filter
15 - new asetpts filter (same as setpts, but for audio)
16 - new trim and atrim filters
17 - avconv -t and -ss (output-only) options are now sample-accurate when
19 - Matroska muxer can now put the index at the beginning of the file.
20 - avconv -deinterlace option removed, the yadif filter should be used instead
21 - Apple Intermediate Codec decoder
22 - Escape 130 video decoder
23 - support for slice multithreading in libavfilter
24 - VC-1 interlaced B-frame support
25 - support for WavPack muxing (raw and in Matroska)
27 - WavPack encoding through libwavpack
28 - Added the -n parameter to avconv
30 - when transcoding with avconv (i.e. not streamcopying), -ss is now accurate
31 even when used as an input option. Previous behavior can be restored with
32 the -noaccurate_seek option.
33 - avconv -t option can now be used for inputs, to limit the duration of
34 data read from an input file
35 - incomplete Voxware MetaSound decoder
37 - Error Resilient AAC syntax (ER AAC LC) decoding
38 - Low Delay AAC (ER AAC LD) decoding
39 - mux chapters in ASF files
40 - Opus in Ogg demuxing
41 - Enhanced Low Delay AAC (ER AAC ELD) decoding (no LD SBR support)
43 - HNM version 4 demuxer and video decoder
45 - raw HEVC, HEVC in MOV/MP4, HEVC in Matroska, HEVC in MPEG-TS demuxing
46 - remove avplay -vismv option, which has not worked for a long time
48 - setsar/setdar filters now support variables in ratio expressions
52 - av_basename and av_dirname
53 - adobe and limelight publisher authentication in RTMP
54 - VDPAU hardware acceleration through normal hwaccel
59 - ashowinfo audio filter
60 - 24-bit FLAC encoding
62 - deprecated the avconv -vol option. the volume filter is to be used instead.
63 - multi-channel ALAC encoding up to 7.1
64 - TAK demuxer, parser, and decoder
65 - adaptive frame-level multithreading for H.264
69 - metadata (INFO tag) support in WAV muxer
70 - support for building DLLs using MSVC
71 - remove avserver daemon mode
72 - support building on the Plan 9 operating system
73 - ffv1: support version 1.3
78 - XWD encoder and decoder
79 - Support for fragmentation in the mov/mp4 muxer
80 - ISMV (Smooth Streaming) muxer
81 - CDXL demuxer and decoder
82 - Apple ProRes encoder
83 - Sun Rasterfile Encoder
85 - ID3v2 attached pictures reading and writing
86 - WMA Lossless decoder
88 - RealAudio Lossless decoder
90 - drop support for avconv without libavfilter
91 - add libavresample audio conversion library
92 - audio filters support in libavfilter and avconv
96 - avprobe output is now standard INI or JSON. The old format can still
99 - channelsplit audio filter
100 - RTMPT protocol support
101 - iLBC encoding/decoding via libilbc
102 - Microsoft Screen 1 decoder
104 - audio channel mapping filter
105 - Microsoft ATC Screen decoder
107 - TechSmith Screen Codec 2 decoder
108 - AAC encoding via libfdk-aac
109 - Microsoft Expression Encoder Screen decoder
110 - RTMPS protocol support
111 - RTMPTS protocol support
112 - JPEG 2000 encoding support through OpenJPEG
113 - G.723.1 demuxer and decoder
114 - RTMPE protocol support
115 - RTMPTE protocol support
116 - Canopus Lossless Codec decoder
117 - avconv -shortest option is now per-output file,
118 -pass and -passlogfile are now per-output stream
120 - Microsoft Screen 2 decoder
121 - RTP depacketization of JPEG
122 - Smooth Streaming live segmenter muxer
123 - RTP packetization of JPEG
124 - Opus decoder and encoder using libopus
125 - remove -same_quant, it hasn't worked for years
126 - support for building with MSVC
137 - Automatic thread count based on detection number of (available) CPU cores
138 - Deprecate libpostproc. If desired, the switch --enable-postproc will
139 enable it but it may be removed in a later Libav release.
140 - rv34: frame-level multi-threading
141 - optimized iMDCT transform on x86 using SSE for for mpegaudiodec
147 - Flash Screen Video 2 decoder
148 - ffplay/ffprobe/ffserver renamed to avplay/avprobe/avserver
149 - ffmpeg deprecated, added avconv, which is almost the same for now, except
150 for a few incompatible changes in the options, which will hopefully make them
151 easier to use. The changes are:
152 * The options placement is now strictly enforced! While in theory the
153 options for ffmpeg should be given in [input options] -i INPUT [output
154 options] OUTPUT order, in practice it was possible to give output options
155 before the -i and it mostly worked. Except when it didn't - the behavior was
156 a bit inconsistent. In avconv, it is not possible to mix input and output
157 options. All non-global options are reset after an input or output filename.
158 * All per-file options are now truly per-file - they apply only to the next
159 input or output file and specifying different values for different files
160 will now work properly (notably -ss and -t options).
161 * All per-stream options are now truly per-stream - it is possible to
162 specify which stream(s) should a given option apply to. See the Stream
163 specifiers section in the avconv manual for details.
164 * In ffmpeg some options (like -newvideo/-newaudio/...) are irregular in the
165 sense that they're specified after the output filename instead of before,
166 like all other options. In avconv this irregularity is removed, all options
167 apply to the next input or output file.
168 * -newvideo/-newaudio/-newsubtitle options were removed. Not only were they
169 irregular and highly confusing, they were also redundant. In avconv the -map
170 option will create new streams in the output file and map input streams to
171 them. E.g. avconv -i INPUT -map 0 OUTPUT will create an output stream for
172 each stream in the first input file.
173 * The -map option now has slightly different and more powerful syntax:
174 + Colons (':') are used to separate file index/stream type/stream index
175 instead of dots. Comma (',') is used to separate the sync stream instead
176 of colon.. This is done for consistency with other options.
177 + It's possible to specify stream type. E.g. -map 0:a:2 creates an
178 output stream from the third input audio stream.
179 + Omitting the stream index now maps all the streams of the given type,
180 not just the first. E.g. -map 0:s creates output streams for all the
181 subtitle streams in the first input file.
182 + Since -map can now match multiple streams, negative mappings were
183 introduced. Negative mappings disable some streams from an already
184 defined map. E.g. '-map 0 -map -0:a:1' means 'create output streams for
185 all the stream in the first input file, except for the second audio
187 * There is a new option -c (or -codec) for choosing the decoder/encoder to
188 use, which allows to precisely specify target stream(s) consistently with
189 other options. E.g. -c:v lib264 sets the codec for all video streams, -c:a:0
190 libvorbis sets the codec for the first audio stream and -c copy copies all
191 the streams without reencoding. Old -vcodec/-acodec/-scodec options are now
193 * It is now possible to precisely specify which stream should an AVOption
194 apply to. E.g. -b:v:0 2M sets the bitrate for the first video stream, while
195 -b:a 128k sets the bitrate for all audio streams. Note that the old -ab 128k
196 syntax is deprecated and will stop working soon.
197 * -map_chapters now takes only an input file index and applies to the next
198 output file. This is consistent with how all the other options work.
199 * -map_metadata now takes only an input metadata specifier and applies to
200 the next output file. Output metadata specifier is now part of the option
201 name, similarly to the AVOptions/map/codec feature above.
202 * -metadata can now be used to set metadata on streams and chapters, e.g.
203 -metadata:s:1 language=eng sets the language of the first stream to 'eng'.
204 This made -vlang/-alang/-slang options redundant, so they were removed.
205 * -qscale option now uses stream specifiers and applies to all streams, not
206 just video. I.e. plain -qscale number would now apply to all streams. To get
207 the old behavior, use -qscale:v. Also there is now a shortcut -q for -qscale
208 and -aq is now an alias for -q:a.
209 * -vbsf/-absf/-sbsf options were removed and replaced by a -bsf option which
210 uses stream specifiers. Use -bsf:v/a/s instead of the old options.
211 * -itsscale option now uses stream specifiers, so its argument is only the
213 * -intra option was removed, use -g 0 for the same effect.
214 * -psnr option was removed, use -flags +psnr for the same effect.
215 * -vf option is now an alias to the new -filter option, which uses stream specifiers.
216 * -vframes/-aframes/-dframes options are now aliases to the new -frames option.
217 * -vtag/-atag/-stag options are now aliases to the new -tag option.
219 - Windows Media Image decoder
223 - libcdio-paranoia input device for audio CD grabbing
225 - Apple ProRes decoder
226 - CELT in Ogg demuxing
227 - VC-1 interlaced decoding
228 - lut, lutrgb, and lutyuv filters
231 - Speex encoding via libspeex
232 - 4:2:2 H.264 decoding support
233 - 4:2:2 and 4:4:4 H.264 encoding with libx264
234 - Pulseaudio input device
235 - replacement Indeo 3 decoder
236 - TLS/SSL and HTTPS protocol support
237 - AVOptions API rewritten and documented
238 - most of CODEC_FLAG2_*, some CODEC_FLAG_* and many codec-specific fields in
239 AVCodecContext deprecated. Codec private options should be used instead.
240 - Properly working defaults in libx264 wrapper, support for native presets.
241 - Encrypted OMA files support
242 - Discworld II BMV decoding support
244 - OS X Video Decoder Acceleration (VDA) support
245 - CRI ADX audio format muxer and demuxer
246 - Playstation Portable PMP format demuxer
247 - PCM format support in OMA demuxer
249 - Dxtory capture format decoder
250 - v410 QuickTime uncompressed 4:4:4 10-bit encoder and decoder
252 - Simple segmenting muxer
259 - E-AC-3 audio encoder
260 - ac3enc: add channel coupling support
261 - floating-point sample format support for (E-)AC-3, DCA, AAC, Vorbis decoders
262 - H.264/MPEG frame-level multithreading
263 - av_metadata_* functions renamed to av_dict_* and moved to libavutil
264 - 4:4:4 H.264 decoding support
265 - 10-bit H.264 optimizations for x86
266 - bump libswscale for recently reported ABI break
271 - VP8 frame-level multithreading
272 - NEON optimizations for VP8
273 - removed a lot of deprecated API cruft
274 - FFT and IMDCT optimizations for AVX (Sandy Bridge) processors
276 - SMPTE 302M AES3 audio decoder
277 - ffmpeg no longer quits after the 'q' key is pressed; use 'ctrl+c' instead
278 - 9bit and 10bit per sample support in the H.264 decoder
283 - WebM support in Matroska de/muxer
284 - low overhead Ogg muxing
286 - VP8 de/encoding via libvpx
287 - Demuxer for On2's IVF format
288 - Pictor/PC Paint decoder
290 - libfaad2 wrapper removed
291 - DTS-ES extension (XCh) decoding support
293 - RTSP tunneling over HTTP
294 - RTP depacketization of SVQ3
295 - -strict inofficial replaced by -strict unofficial
296 - ffplay -exitonkeydown and -exitonmousedown options added
297 - native GSM / GSM MS decoder
298 - RTP depacketization of QDM2
299 - ANSI/ASCII art playback system
300 - Lego Mindstorms RSO de/muxer
301 - SubRip subtitle file muxer and demuxer
302 - Chinese AVS encoding via libxavs
303 - ffprobe -show_packets option added
304 - RTP packetization of Theora and Vorbis
305 - RTP depacketization of MP4A-LATM
306 - RTP packetization and depacketization of VP8
308 - Apple HTTP Live Streaming demuxer
311 - G.722 ADPCM audio encoder/decoder
314 - frei0r wrapper filter
315 - change crop filter syntax to width:height:x:y
316 - make the crop filter accept parametric expressions
317 - make ffprobe accept AVFormatContext options
320 - Demuxer for Leitch/Harris' VR native stream format (LXF)
321 - RTP depacketization of the X-QT QuickTime format
322 - SAP (Session Announcement Protocol, RFC 2974) muxer and demuxer
324 - ffmpeg -crop* options removed
325 - transpose filter added
326 - ffmpeg -force_key_frames option added
327 - demuxer for receiving raw rtp:// URLs without an SDP description
328 - single stream LATM/LOAS decoder
329 - setpts filter added
330 - Win64 support for optimized x86 assembly functions
331 - MJPEG/AVI1 to JPEG/JFIF bitstream filter
332 - ASS subtitle encoder and decoder
333 - IEC 61937 encapsulation for E-AC-3, TrueHD, DTS-HD (for HDMI passthrough)
334 - overlay filter added
335 - rename aspect filter to setdar, and pixelaspect to setsar
337 - Mobotix .mxg demuxer
338 - frei0r source added
339 - hqdn3d filter added
340 - RTP depacketization of QCELP
342 - gradfun filter added
344 - replace the ocv_smooth filter with a more generic ocv filter
345 - Windows Televison (WTV) demuxer
346 - FFmpeg metadata format muxer and demuxer
347 - SubRip (srt) subtitle decoder
348 - floating-point AC-3 encoder added
350 - ffmpeg -copytb option added
352 - Wing Commander IV movies decoder added
354 - Bink version 'b' audio and video decoder
355 - Bitmap Brothers JV playback system
356 - Apple HTTP Live Streaming protocol handler
357 - sndio support for playback and record
358 - Linux framebuffer input device added
359 - Chronomaster DFA decoder
360 - Mobotix MxPEG decoder
361 - AAC encoding via libvo-aacenc
362 - AMR-WB encoding via libvo-amrwbenc
364 - fieldorder video filter added
369 - PB-frame decoding for H.263
370 - deprecated vhook subsystem removed
371 - deprecated old scaler removed
373 - Alpha channel scaler
375 - RTP packetization of H.263
376 - RTP packetization of AMR
377 - RTP depacketization of Vorbis
378 - CorePNG decoding support
379 - Cook multichannel decoding support
380 - introduced avlanguage helpers in libavformat
381 - 8088flex TMV demuxer and decoder
382 - per-stream language-tags extraction in asfdec
383 - V210 decoder and encoder
384 - remaining GPL parts in AC-3 decoder converted to LGPL
386 - SoX native format muxer and demuxer
387 - AMR-NB decoding/encoding, AMR-WB decoding via OpenCORE libraries
389 - Electronic Arts Madcow decoder
390 - DivX (XSUB) subtitle encoder
391 - nonfree libamr support for AMR-NB/WB decoding/encoding removed
392 - experimental AAC encoder
393 - RTP depacketization of ASF and RTSP from WMS servers
394 - RTMP support in libavformat
395 - noX handling for OPT_BOOL X options
397 - IEC-61937 compatible Muxer
399 - Bluray (PGS) subtitle decoder
400 - LPCM support in MPEG-TS (HDMV RID as found on Blu-ray disks)
402 - Core Audio Format demuxer
404 - MD STUDIO audio demuxer
405 - RF64 support in WAV demuxer
406 - MPEG-4 Audio Lossless Coding (ALS) decoder
407 - -formats option split into -formats, -codecs, -bsfs, and -protocols
409 - CDG demuxer and decoder
411 - Auravision Aura 1 and 2 decoders
412 - Deluxe Paint Animation playback system
414 - Adobe Filmstrip muxer and demuxer
415 - RTP depacketization of H.263
416 - Bink demuxer and audio/video decoders
417 - enable symbol versioning by default for linkers that support it
418 - IFF PBM/ILBM bitmap decoder
421 - RTP depacketization of AMR
427 - Kega Game Video (KGV1) decoder
428 - VorbisComment writing for FLAC, Ogg FLAC and Ogg Speex files
429 - RTP depacketization of Theora
430 - HTTP Digest authentication
431 - RTMP/RTMPT/RTMPS/RTMPE/RTMPTE protocol support via librtmp
432 - Psygnosis YOP demuxer and video decoder
433 - spectral extension support in the E-AC-3 decoder
434 - unsharp video filter
435 - RTP hinting in the mov/3gp/mp4 muxer
436 - Dirac in Ogg demuxing
437 - seek to keyframes in Ogg
438 - 4:2:2 and 4:4:4 Theora decoding
439 - 35% faster VP3/Theora decoding
440 - faster AAC decoding
441 - faster H.264 decoding
442 - RealAudio 1.0 (14.4K) encoder
447 - DV50 AKA DVCPRO50 encoder, decoder, muxer and demuxer
448 - TechSmith Camtasia (TSCC) video decoder
449 - IBM Ultimotion (ULTI) video decoder
450 - Sierra Online audio file demuxer and decoder
451 - Apple QuickDraw (qdrw) video decoder
452 - Creative ADPCM audio decoder (16 bits as well as 8 bits schemes)
453 - Electronic Arts Multimedia (WVE/UV2/etc.) file demuxer
454 - Miro VideoXL (VIXL) video decoder
455 - H.261 video encoder
457 - Nullsoft Video (NSV) file demuxer
458 - Shorten audio decoder
460 - Apple Lossless Audio Codec (ALAC) decoder
461 - Winnov WNV1 video decoder
462 - Autodesk Animator Studio Codec (AASC) decoder
463 - Indeo 2 video decoder
464 - Fraps FPS1 video decoder
465 - Snow video encoder/decoder
466 - Sonic audio encoder/decoder
467 - Vorbis audio decoder
468 - Macromedia ADPCM decoder
469 - Duck TrueMotion 2 video decoder
470 - support for decoding FLX and DTA extensions in FLIC files
471 - H.264 custom quantization matrices support
472 - ffserver fixed, it should now be usable again
474 - Real Cooker audio decoder
475 - TrueSpeech audio decoder
476 - WMA2 audio decoder fixed, now all files should play correctly
477 - RealAudio 14.4 and 28.8 decoders fixed
479 - build system improvements
480 - tabs and trailing whitespace removed from the codebase
481 - CamStudio video decoder
482 - AIFF/AIFF-C audio format, encoding and decoding
483 - ADTS AAC file reading and writing
484 - Creative VOC file reading and writing
485 - American Laser Games multimedia (*.mm) playback system
486 - Zip Motion Blocks Video decoder
487 - improved Theora/VP3 decoder
488 - True Audio (TTA) decoder
489 - AVS demuxer and video decoder
491 - Smacker demuxer and decoder
492 - NuppelVideo/MythTV demuxer and RTjpeg decoder
494 - MPEG-2 intra VLC support
495 - MPEG-2 4:2:2 encoder
496 - Flash Screen Video decoder
498 - Chinese AVS decoder
501 - VC-1/WMV3/WMV9 video decoder
504 - VMware video decoder
507 - WavPack lossless audio decoder
508 - Targa (.TGA) picture decoder
509 - Vorbis audio encoder
510 - Delphine Software .cin demuxer/audio and video decoder
511 - Tiertex .seq demuxer/video decoder
513 - TIFF picture encoder and decoder
514 - GIF picture decoder
515 - Intel Music Coder decoder
516 - Zip Motion Blocks Video encoder
518 - Flash Screen Video encoder
519 - Theora encoding via libtheora
522 - GSM-MS encoder and decoder
524 - DXA demuxer and decoder
526 - Gamecube movie (.THP) playback system
527 - Blackfin optimizations
528 - Interplay C93 demuxer and video decoder
529 - Bethsoft VID demuxer and video decoder
532 - V.Flash PTX decoder
533 - RoQ muxer, RoQ audio encoder
534 - Renderware TXD demuxer and decoder
535 - extern C declarations for C++ removed from headers
536 - sws_flags command line option
540 - OS/2 support removed and restored again
543 - additional SPARC (VIS) optimizations
545 - slice-based parallel H.264 decoding
546 - Monkey's Audio demuxer and decoder
547 - AMV audio and video decoder
549 - H.264 PAFF decoding
550 - Nellymoser ASAO decoder
551 - Beam Software SIFF demuxer and decoder
552 - libvorbis Vorbis decoding removed in favor of native decoder
553 - IntraX8 (J-Frame) subdecoder for WMV2 and VC-1
554 - Ogg (Theora, Vorbis and FLAC) muxer
555 - The "device" muxers and demuxers are now in a new libavdevice library
556 - PC Paintbrush PCX decoder
557 - Sun Rasterfile decoder
558 - TechnoTrend PVA demuxer
559 - Linux Media Labs MPEG-4 (LMLM4) demuxer
560 - AVM2 (Flash 9) SWF muxer
561 - QT variant of IMA ADPCM encoder
563 - iPod/iPhone compatible mp4 muxer
565 - MSN TCP Webcam stream demuxer
566 - RL2 demuxer / decoder
569 - non-recursive Makefiles
571 - MAXIS EA XA (.xa) demuxer / decoder
575 - Electronic Arts CMV decoder
576 - Motion Pixels Video decoder
577 - Motion Pixels MVI demuxer
578 - removed animated GIF decoder/demuxer
579 - D-Cinema audio muxer
580 - Electronic Arts TGV decoder
581 - Apple Lossless Audio Codec (ALAC) encoder
583 - floating point PCM encoder/decoder
585 - DV100 AKA DVCPRO HD decoder and demuxer
586 - E-AC-3 support added to AC-3 decoder
587 - Nellymoser ASAO encoder
588 - ASS and SSA demuxer and muxer
589 - liba52 wrapper removed
590 - SVQ3 watermark decoding support
591 - Speex decoding via libspeex
592 - Electronic Arts TGQ decoder
594 - QCELP / PureVoice decoder
596 - hybrid WavPack support
597 - R3D REDCODE demuxer
598 - ALSA support for playback and record
599 - Electronic Arts TQI decoder
600 - OpenJPEG based JPEG 2000 decoder
601 - NC (NC4600) camera file demuxer
602 - Gopher client support
604 - generic metadata API
609 - DV encoder, DV muxer
610 - Microsoft RLE video decoder
611 - Microsoft Video-1 decoder
612 - Apple Animation (RLE) decoder
613 - Apple Graphics (SMC) decoder
614 - Apple Video (RPZA) decoder
616 - Sega FILM (CPK) file demuxer
617 - Westwood multimedia support (VQA & AUD files)
618 - Id Quake II CIN playback support
620 - FLIC playback support
621 - RealVideo 2.0 (RV20) decoder
622 - Duck TrueMotion v1 (DUCK) video decoder
623 - Sierra VMD demuxer and video decoder
624 - MSZH and ZLIB decoder support
628 - rate distortion optimal cbp support
629 - rate distorted optimal ac prediction for MPEG-4
630 - rate distorted optimal lambda->qp support
631 - AAC encoding with libfaac
632 - Sunplus JPEG codec (SP5X) support
633 - use Lagrange multipler instead of QP for ratecontrol
634 - Theora/VP3 decoding support
635 - XA and ADX ADPCM codecs
636 - export MPEG-2 active display area / pan scan
637 - Add support for configuring with IBM XLC
638 - floating point AAN DCT
639 - initial support for zygo video (not complete)
641 - new audio/video parser API
643 - av_read_frame() and av_seek_frame() support
644 - missing last frame fixes
645 - seek by mouse in ffplay
646 - noise reduction of DCT coefficients
647 - H.263 OBMC & 4MV support
648 - H.263 alternative inter vlc support
650 - H.263 slice structured mode
651 - interlaced DCT support for MPEG-2 encoding
652 - stuffing to stay above min_bitrate
653 - MB type & QP visualization
654 - frame stepping for ffplay
655 - interlaced motion estimation
656 - alternate scantable support
657 - SVCD scan offset support
660 - quantizer noise shaping
661 - G.726 ADPCM audio codec
663 - multithreaded/SMP motion estimation
664 - multithreaded/SMP encoding for MPEG-1/MPEG-2/MPEG-4/H.263
665 - multithreaded/SMP decoding for MPEG-2
667 - Metrowerks CodeWarrior suppport
668 - H.263+ custom pcf support
669 - nicer output for 'ffmpeg -formats'
671 - SGI image format, encoding and decoding
672 - H.264 loop filter support
673 - H.264 CABAC support
674 - nicer looking arrows for the motion vector visualization
675 - improved VCD support
676 - audio timestamp drift compensation
677 - MPEG-2 YUV 422/444 support
678 - polyphase kaiser windowed sinc and blackman nuttall windowed sinc audio resample
679 - better image scaling
681 - correctly interleave packets during encoding
682 - VIS optimized motion compensation
683 - intra_dc_precision>0 encoding support
684 - support reuse of motion vectors/MB types/field select values of the source video
685 - more accurate deblock filter
687 - many optimizations and bugfixes
688 - FunCom ISS audio file demuxer and according ADPCM decoding
693 - MPEG-2 video encoding (Michael)
694 - Id RoQ playback subsystem (Mike Melanson and Tim Ferguson)
695 - Wing Commander III Movie (.mve) file playback subsystem (Mike Melanson
697 - Xan DPCM audio decoder (Mario Brito)
698 - Interplay MVE playback subsystem (Mike Melanson)
699 - Duck DK3 and DK4 ADPCM audio decoders (Mike Melanson)
704 - RealAudio 1.0 (14_4) and 2.0 (28_8) native decoders. Author unknown, code from mplayerhq
705 (originally from public domain player for Amiga at http://www.honeypot.net/audio)
706 - current version now also compiles with older GCC (Fabrice)
707 - 4X multimedia playback system including 4xm file demuxer (Mike
708 Melanson), and 4X video and audio codecs (Michael)
709 - Creative YUV (CYUV) decoder (Mike Melanson)
710 - FFV1 codec (our very simple lossless intra only codec, compresses much better
711 than HuffYUV) (Michael)
712 - ASV1 (Asus), H.264, Intel indeo3 codecs have been added (various)
713 - tiny PNG encoder and decoder, tiny GIF decoder, PAM decoder (PPM with
714 alpha support), JPEG YUV colorspace support. (Fabrice Bellard)
715 - ffplay has been replaced with a newer version which uses SDL (optionally)
716 for multiplatform support (Fabrice)
717 - Sorenson Version 3 codec (SVQ3) support has been added (decoding only) - donated
719 - AMR format has been added (Johannes Carlsson)
720 - 3GP support has been added (Johannes Carlsson)
721 - VP3 codec has been added (Mike Melanson)
722 - more MPEG-1/2 fixes
723 - better multiplatform support, MS Visual Studio fixes (various)
724 - AltiVec optimizations (Magnus Damn and others)
725 - SH4 processor support has been added (BERO)
726 - new public interfaces (avcodec_get_pix_fmt) (Roman Shaposhnick)
727 - VOB streaming support (Brian Foley)
728 - better MP3 autodetection (Andriy Rysin)
729 - qpel encoding (Michael)
730 - 4mv+b frames encoding finally fixed (Michael)
731 - chroma ME (Michael)
732 - 5 comparison functions for ME (Michael)
733 - B-frame encoding speedup (Michael)
734 - WMV2 codec (unfinished - Michael)
735 - user specified diamond size for EPZS (Michael)
736 - Playstation STR playback subsystem, still experimental (Mike and Michael)
737 - ASV2 codec (Michael)
738 - CLJR decoder (Alex)
740 .. And lots more new enhancements and fixes.
745 - completely new integer only MPEG audio layer 1/2/3 decoder rewritten
747 - Recoded DCT and motion vector search with gcc (no longer depends on nasm)
748 - fix quantization bug in AC3 encoder
749 - added PCM codecs and format. Corrected WAV/AVI/ASF PCM issues
750 - added prototype ffplay program
751 - added GOB header parsing on H.263/H.263+ decoder (Juanjo)
752 - bug fix on MCBPC tables of H.263 (Juanjo)
753 - bug fix on DC coefficients of H.263 (Juanjo)
754 - added Advanced Prediction Mode on H.263/H.263+ decoder (Juanjo)
755 - now we can decode H.263 streams found in QuickTime files (Juanjo)
756 - now we can decode H.263 streams found in VIVO v1 files(Juanjo)
757 - preliminary RTP "friendly" mode for H.263/H.263+ coding. (Juanjo)
758 - added GOB header for H.263/H.263+ coding on RTP mode (Juanjo)
759 - now H.263 picture size is returned on the first decoded frame (Juanjo)
760 - added first regression tests
761 - added MPEG-2 TS demuxer
762 - new demux API for libav
763 - more accurate and faster IDCT (Michael)
764 - faster and entropy-controlled motion search (Michael)
765 - two pass video encoding (Michael)
766 - new video rate control (Michael)
767 - added MSMPEG4V1, MSMPEGV2 and WMV1 support (Michael)
768 - great performance improvement of video encoders and decoders (Michael)
769 - new and faster bit readers and vlc parsers (Michael)
770 - high quality encoding mode: tries all macroblock/VLC types (Michael)
771 - added DV video decoder
772 - preliminary RTP/RTSP support in ffserver and libavformat
773 - H.263+ AIC decoding/encoding support (Juanjo)
774 - VCD MPEG-PS mode (Juanjo)
775 - PSNR stuff (Juanjo)
776 - simple stats output (Juanjo)
777 - 16-bit and 15-bit RGB/BGR/GBR support (Bisqwit)
782 - some header fixes (Zdenek Kabelac <kabi at informatics.muni.cz>)
783 - many MMX optimizations (Nick Kurshev <nickols_k at mail.ru>)
784 - added configure system (actually a small shell script)
785 - added MPEG audio layer 1/2/3 decoding using LGPL'ed mpglib by
786 Michael Hipp (temporary solution - waiting for integer only
788 - fixed VIDIOCSYNC interrupt
789 - added Intel H.263 decoding support ('I263' AVI fourCC)
790 - added Real Video 1.0 decoding (needs further testing)
791 - simplified image formats again. Added PGM format (=grey
792 pgm). Renamed old PGM to PGMYUV.
793 - fixed msmpeg4 slice issues (tell me if you still find problems)
794 - fixed OpenDivX bugs with newer versions (added VOL header decoding)
795 - added support for MPlayer interface
796 - added macroblock skip optimization
797 - added MJPEG decoder
798 - added mmx/mmxext IDCT from libmpeg2
799 - added pgmyuvpipe, ppm, and ppm_pipe formats (original patch by Celer
800 <celer at shell.scrypt.net>)
801 - added pixel format conversion layer (e.g. for MJPEG or PPM)
802 - added deinterlacing option
804 - MPEG-4 vol header fixes (Jonathan Marsden <snmjbm at pacbell.net>)
805 - ARM optimizations (Lionel Ulmer <lionel.ulmer at free.fr>).
806 - Windows porting of file converter
807 - added MJPEG raw format (input/ouput)
808 - added JPEG image format support (input/output)
813 - fixed some std header definitions (Bjorn Lindgren
814 <bjorn.e.lindgren at telia.com>).
815 - added MPEG demuxer (MPEG-1 and 2 compatible).
817 - added prototype RM demuxer
818 - added AC3 decoding (done with libac3 by Aaron Holtzman)
819 - added decoding codec parameter guessing (.e.g. for MPEG, because the
820 header does not include them)
821 - fixed header generation in MPEG-1, AVI and ASF muxer: wmplayer can now
822 play them (only tested video)
823 - fixed H.263 white bug
824 - fixed phase rounding in img resample filter
825 - add MMX code for polyphase img resample filter
826 - added CPU autodetection
827 - added generic title/author/copyright/comment string handling (ASF and RM
829 - added SWF demux to extract MP3 track (not usable yet because no MP3
831 - added fractional frame rate support
832 - codecs are no longer searched by read_header() (should fix ffserver
838 - BGR24 patch (initial patch by Jeroen Vreeken <pe1rxq at amsat.org>)
839 - fixed raw yuv output
840 - added motion rounding support in MPEG-4
841 - fixed motion bug rounding in MSMPEG4
842 - added B-frame handling in video core
843 - added full MPEG-1 decoding support
844 - added partial (frame only) MPEG-2 support
845 - changed the FOURCC code for H.263 to "U263" to be able to see the
846 +AVI/H.263 file with the UB Video H.263+ decoder. MPlayer works with
847 this +codec ;) (JuanJo).
848 - Halfpel motion estimation after MB type selection (JuanJo)
849 - added pgm and .Y.U.V output format
850 - suppressed 'img:' protocol. Simply use: /tmp/test%d.[pgm|Y] as input or
852 - added pgmpipe I/O format (original patch from Martin Aumueller
853 <lists at reserv.at>, but changed completely since we use a format
854 instead of a protocol)
859 - added H.263/MPEG-4/MSMPEG4 decoding support. MPEG-4 decoding support
860 (for OpenDivX) is almost complete: 8x8 MVs and rounding are
861 missing. MSMPEG4 support is complete.
862 - added prototype MPEG-1 decoder. Only I- and P-frames handled yet (it
863 can decode ffmpeg MPEGs :-)).
864 - added libavcodec API documentation (see apiexample.c).
865 - fixed image polyphase bug (the bottom of some images could be
867 - added support for non clipped motion vectors (decoding only)
868 and image sizes non-multiple of 16
869 - added support for AC prediction (decoding only)
870 - added file overwrite confirmation (can be disabled with -y)
871 - added custom size picture to H.263 using H.263+ (Juanjo)
876 - added MSMPEG4 (aka DivX) compatible encoder. Changed default codec
877 of AVI and ASF to DIV3.
878 - added -me option to set motion estimation method
879 (default=log). suppressed redundant -hq option.
880 - added options -acodec and -vcodec to force a given codec (useful for
883 - improved dct_quantize speed
884 - factorized some motion estimation code
889 - removing grab code from ffserver and moved it to ffmpeg. Added
890 multistream support to ffmpeg.
891 - added timeshifting support for live feeds (option ?date=xxx in the
893 - added high quality image resize code with polyphase filter (need
894 mmx/see optimization). Enable multiple image size support in ffserver.
895 - added multi live feed support in ffserver
896 - suppressed master feature from ffserver (it should be done with an
897 external program which opens the .ffm url and writes it to another
899 - added preliminary support for video stream parsing (WAV and AVI half
900 done). Added proper support for audio/video file conversion in
902 - added preliminary support for video file sending from ffserver
903 - redesigning I/O subsystem: now using URL based input and output
905 - added WAV format support
906 - added "tty user interface" to ffmpeg to stop grabbing gracefully
907 - added MMX/SSE optimizations to SAD (Sums of Absolutes Differences)
908 (Juan J. Sierralta P. a.k.a. "Juanjo" <juanjo at atmlab.utfsm.cl>)
909 - added MMX DCT from mpeg2_movie 1.5 (Juanjo)
910 - added new motion estimation algorithms, log and phods (Juanjo)
911 - changed directories: libav for format handling, libavcodec for
917 - added stereo in MPEG audio encoder
922 - added 'high quality' mode which use motion vectors. It can be used in
923 real time at low resolution.
924 - fixed rounding problems which caused quality problems at high
925 bitrates and large GOP size
928 version 0.3.2: small fixes
934 version 0.3.1: added avi/divx support
937 - added MPEG-4 codec compatible with OpenDivX. It is based on the H.263 codec
938 - added sound for flash format (not tested)
941 version 0.3: initial public release