1 Entries are sorted chronologically from oldest to youngest within each release,
2 releases are sorted from youngest to oldest.
5 - Support for spherical videos
6 - Intel QSV-accelerated VP8 and VC-1 decoding
7 - VAAPI-accelerated VP8 and HEVC decoding
8 - VAAPI-accelerated deinterlacing
9 - config.log and other configuration files moved into avbuild/ directory
10 - VAAPI-accelerated MPEG-2 and VP8 encoding
11 - Apple Pixlet decoder
12 - The x86 assembler default switched from yasm to nasm, pass
13 --x86asmexe=yasm to configure to restore the old behavior.
15 - VP9 superframe split/merge bitstream filters
16 - FM Screen Capture Codec decoder
17 - ClearVideo decoder (I-frames only)
18 - support for decoding through D3D11VA in avconv
22 - aliases and defaults for Ogg subtypes (opus, spx)
23 - HEVC/H.265 RTP payload format (draft v6) packetizer and depacketizer
24 - avplay now exits by default at the end of playback
25 - XCB-based screen-grabber
26 - creating DASH compatible fragmented MP4, MPEG-DASH segmenting muxer
27 - H.261 RTP payload format (RFC 4587) depacketizer and experimental packetizer
30 - OpenH264 encoder wrapper
31 - Support DNx100 (960x720@8)
32 - Direct3D11-accelerated decoding
33 - DXVA2-accelerated HEVC decoding
34 - AAC ELD 480 decoding
35 - Intel QSV-accelerated H.264 decoding
36 - DSS SP decoder and DSS demuxer
37 - RTP depacketizer for AC3 payload format (RFC 4184)
38 - RTP depacketizer for loss tolerant payload format for MP3 audio (RFC 5219)
39 - RTP depacketizer for DV (RFC 6469)
41 - RTP depacketization of T.140 text (RFC 4103)
42 - VP9 RTP payload format (draft 0) experimental depacketizer
44 - DTS lossless extension (XLL) decoding (not lossless, disabled by default)
45 - Intel QSV-accelerated H.264 encoding
46 - MMAL-accelerated H.264 decoding
47 - DTS decoding through libdcadec
48 - Canopus HQ/HQA decoder
49 - Automatically rotate videos based on metadata in avconv
50 - improved Quickdraw compatibility
51 - NVIDIA NVENC-accelerated H.264 and HEVC encoding support
52 - Multipart JPEG demuxer
53 - Support the extended vp9 profiles in the libvpx wrapper
54 - Hap decoder and encoder
55 - DirectDraw Surface image/texture decoder
56 - rewritten ASF demuxer
57 - Go2Meeting decoding support
58 - Intel QSV-accelerated MPEG-2 video and HEVC encoding
59 - bitstream filter for converting HEVC from MP4 to Annex B
60 - Intel QSV-accelerated MPEG-2 video and HEVC decoding
61 - Support DNx100 (1440x1080@8)
63 - Screenpresso SPV1 decoding
64 - zero-copy Intel QSV transcoding in avconv
65 - libkvazaar HEVC encoder
66 - innoHeim/Rsupport Screen Capture Codec decoder
67 - support encoding 16-bit RLE SGI images
68 - support Apple AVFoundation video capture
69 - G.723.1 muxer and encoder
71 - VAAPI-accelerated format conversion and scaling
72 - libnpp/CUDA-accelerated format conversion and scaling
73 - VAAPI-accelerate H.264/HEVC/MJPEG encoding
74 - Generic OpenMAX IL encoder with support for Raspberry Pi
75 - MMAL-accelerated MPEG-2 and VC-1 decoding
78 - Duck TrueMotion 2.0 Real Time decoder
79 - Intel QSV video scaling and deinterlacing filter
80 - Support MOV with multiple sample description tables
81 - OpenH264 decoder wrapper
82 - Removed the legacy X11 screen grabber, use XCB instead
83 - HDCD decoding filter through libhdcd
88 - shuffleplanes filter
89 - replaygain data export
90 - Alias PIX image encoder and decoder
91 - BRender PIX image decoder
92 - Amazing Studio PAF playback support
94 - BMP standalone parser
95 - OpenEXR image decoder
96 - support encoding and decoding 4-channel SGI images
97 - support decoding 16-bit RLE SGI images
99 - LucasArts SMUSH SANM video decoder
100 - LucasArts SMUSH VIMA audio decoder (ADPCM)
101 - LucasArts SMUSH demuxer
102 - MP2 encoding via TwoLAME
104 - Silicon Graphics RLE 8-bit video decoder
105 - Silicon Graphics Motion Video Compressor 1 & 2 decoder
106 - Silicon Graphics Movie demuxer
107 - On2 AVC (Audio for Video) decoder
108 - support for decoding through DXVA2 in avconv
109 - libbs2b-based stereo-to-binaural audio filter
110 - native Opus decoder
111 - display matrix export and rotation API
112 - drop avserver, it was unmaintained for years and largely broken
114 - request Icecast metadata by default
115 - support for using metadata in stream specifiers in avtools
116 - Matroska 3D support
121 - support ID3v2 tags in ASF files
122 - reference-counting for AVFrame and AVPacket data
123 - avconv now fails when input options are used for output file
125 - avconv options -filter_script and -filter_complex_script, which allow a
126 filtergraph description to be read from a file
127 - uniform options syntax across all filters
130 - asetpts filter (same as setpts, but for audio)
131 - trim and atrim filters
132 - avconv -t and -ss (output-only) options are now sample-accurate when
134 - Matroska muxer can now put the index at the beginning of the file.
135 - avconv -deinterlace option removed, the yadif filter should be used instead
136 - Apple Intermediate Codec decoder
137 - Escape 130 video decoder
138 - support for slice multithreading in libavfilter
139 - VC-1 interlaced B-frame support
140 - support for WavPack muxing (raw and in Matroska)
142 - WavPack encoding through libwavpack
143 - Added the -n parameter to avconv
145 - when transcoding with avconv (i.e. not streamcopying), -ss is now accurate
146 even when used as an input option. Previous behavior can be restored with
147 the -noaccurate_seek option.
148 - avconv -t option can now be used for inputs, to limit the duration of
149 data read from an input file
150 - Voxware MetaSound decoder
152 - Error Resilient AAC syntax (ER AAC LC) decoding
153 - Low Delay AAC (ER AAC LD) decoding
154 - mux chapters in ASF files
155 - Opus in Ogg demuxing
156 - Enhanced Low Delay AAC (ER AAC ELD) decoding (no LD SBR support)
158 - HNM version 4 demuxer and video decoder
160 - raw HEVC, HEVC in MOV/MP4, HEVC in Matroska, HEVC in MPEG-TS demuxing
161 - remove avplay -vismv option, which has not worked for a long time
163 - setsar/setdar filters now support variables in ratio expressions
164 - dar variable in the scale filter now returns the actual DAR (i.e. a * sar)
166 - support for decoding through VDPAU in avconv (the -hwaccel option)
167 - remove mp3_header_(de)compress bitstream filters
168 - stereoscopic 3d metadata handling
169 - png standalone parser
170 - WebP encoding via libwebp
173 - Mirillis FIC video decoder
175 - compand audio filter
179 - av_basename and av_dirname
180 - adobe and limelight publisher authentication in RTMP
181 - VDPAU hardware acceleration through normal hwaccel
186 - ashowinfo audio filter
187 - 24-bit FLAC encoding
188 - audio volume filter
189 - deprecated the avconv -vol option. the volume filter is to be used instead.
190 - multi-channel ALAC encoding up to 7.1
191 - TAK demuxer, parser, and decoder
192 - adaptive frame-level multithreading for H.264
196 - metadata (INFO tag) support in WAV muxer
197 - support for building DLLs using MSVC
198 - remove avserver daemon mode
199 - support building on the Plan 9 operating system
200 - ffv1: support version 1.3
205 - XWD encoder and decoder
206 - Support for fragmentation in the mov/mp4 muxer
207 - ISMV (Smooth Streaming) muxer
208 - CDXL demuxer and decoder
209 - Apple ProRes encoder
210 - Sun Rasterfile Encoder
212 - ID3v2 attached pictures reading and writing
213 - WMA Lossless decoder
215 - RealAudio Lossless decoder
217 - drop support for avconv without libavfilter
218 - add libavresample audio conversion library
219 - audio filters support in libavfilter and avconv
223 - avprobe output is now standard INI or JSON. The old format can still
224 be used with -of old.
225 - Indeo Audio decoder
226 - channelsplit audio filter
227 - RTMPT protocol support
228 - iLBC encoding/decoding via libilbc
229 - Microsoft Screen 1 decoder
231 - audio channel mapping filter
232 - Microsoft ATC Screen decoder
234 - TechSmith Screen Codec 2 decoder
235 - AAC encoding via libfdk-aac
236 - Microsoft Expression Encoder Screen decoder
237 - RTMPS protocol support
238 - RTMPTS protocol support
239 - JPEG 2000 encoding support through OpenJPEG
240 - G.723.1 demuxer and decoder
241 - RTMPE protocol support
242 - RTMPTE protocol support
243 - Canopus Lossless Codec decoder
244 - avconv -shortest option is now per-output file,
245 -pass and -passlogfile are now per-output stream
247 - Microsoft Screen 2 decoder
248 - RTP depacketization of JPEG
249 - Smooth Streaming live segmenter muxer
250 - RTP packetization of JPEG
251 - Opus decoder and encoder using libopus
252 - remove -same_quant, it hasn't worked for years
253 - support for building with MSVC
264 - Automatic thread count based on detection number of (available) CPU cores
265 - Deprecate libpostproc. If desired, the switch --enable-postproc will
266 enable it but it may be removed in a later Libav release.
267 - rv34: frame-level multi-threading
268 - optimized iMDCT transform on x86 using SSE for for mpegaudiodec
274 - Flash Screen Video 2 decoder
275 - ffplay/ffprobe/ffserver renamed to avplay/avprobe/avserver
276 - ffmpeg deprecated, added avconv, which is almost the same for now, except
277 for a few incompatible changes in the options, which will hopefully make them
278 easier to use. The changes are:
279 * The options placement is now strictly enforced! While in theory the
280 options for ffmpeg should be given in [input options] -i INPUT [output
281 options] OUTPUT order, in practice it was possible to give output options
282 before the -i and it mostly worked. Except when it didn't - the behavior was
283 a bit inconsistent. In avconv, it is not possible to mix input and output
284 options. All non-global options are reset after an input or output filename.
285 * All per-file options are now truly per-file - they apply only to the next
286 input or output file and specifying different values for different files
287 will now work properly (notably -ss and -t options).
288 * All per-stream options are now truly per-stream - it is possible to
289 specify which stream(s) should a given option apply to. See the Stream
290 specifiers section in the avconv manual for details.
291 * In ffmpeg some options (like -newvideo/-newaudio/...) are irregular in the
292 sense that they're specified after the output filename instead of before,
293 like all other options. In avconv this irregularity is removed, all options
294 apply to the next input or output file.
295 * -newvideo/-newaudio/-newsubtitle options were removed. Not only were they
296 irregular and highly confusing, they were also redundant. In avconv the -map
297 option will create new streams in the output file and map input streams to
298 them. E.g. avconv -i INPUT -map 0 OUTPUT will create an output stream for
299 each stream in the first input file.
300 * The -map option now has slightly different and more powerful syntax:
301 + Colons (':') are used to separate file index/stream type/stream index
302 instead of dots. Comma (',') is used to separate the sync stream instead
303 of colon.. This is done for consistency with other options.
304 + It's possible to specify stream type. E.g. -map 0:a:2 creates an
305 output stream from the third input audio stream.
306 + Omitting the stream index now maps all the streams of the given type,
307 not just the first. E.g. -map 0:s creates output streams for all the
308 subtitle streams in the first input file.
309 + Since -map can now match multiple streams, negative mappings were
310 introduced. Negative mappings disable some streams from an already
311 defined map. E.g. '-map 0 -map -0:a:1' means 'create output streams for
312 all the stream in the first input file, except for the second audio
314 * There is a new option -c (or -codec) for choosing the decoder/encoder to
315 use, which allows to precisely specify target stream(s) consistently with
316 other options. E.g. -c:v lib264 sets the codec for all video streams, -c:a:0
317 libvorbis sets the codec for the first audio stream and -c copy copies all
318 the streams without reencoding. Old -vcodec/-acodec/-scodec options are now
320 * It is now possible to precisely specify which stream should an AVOption
321 apply to. E.g. -b:v:0 2M sets the bitrate for the first video stream, while
322 -b:a 128k sets the bitrate for all audio streams. Note that the old -ab 128k
323 syntax is deprecated and will stop working soon.
324 * -map_chapters now takes only an input file index and applies to the next
325 output file. This is consistent with how all the other options work.
326 * -map_metadata now takes only an input metadata specifier and applies to
327 the next output file. Output metadata specifier is now part of the option
328 name, similarly to the AVOptions/map/codec feature above.
329 * -metadata can now be used to set metadata on streams and chapters, e.g.
330 -metadata:s:1 language=eng sets the language of the first stream to 'eng'.
331 This made -vlang/-alang/-slang options redundant, so they were removed.
332 * -qscale option now uses stream specifiers and applies to all streams, not
333 just video. I.e. plain -qscale number would now apply to all streams. To get
334 the old behavior, use -qscale:v. Also there is now a shortcut -q for -qscale
335 and -aq is now an alias for -q:a.
336 * -vbsf/-absf/-sbsf options were removed and replaced by a -bsf option which
337 uses stream specifiers. Use -bsf:v/a/s instead of the old options.
338 * -itsscale option now uses stream specifiers, so its argument is only the
340 * -intra option was removed, use -g 0 for the same effect.
341 * -psnr option was removed, use -flags +psnr for the same effect.
342 * -vf option is now an alias to the new -filter option, which uses stream specifiers.
343 * -vframes/-aframes/-dframes options are now aliases to the new -frames option.
344 * -vtag/-atag/-stag options are now aliases to the new -tag option.
346 - Windows Media Image decoder
350 - libcdio-paranoia input device for audio CD grabbing
352 - Apple ProRes decoder
353 - CELT in Ogg demuxing
354 - VC-1 interlaced decoding
355 - lut, lutrgb, and lutyuv filters
358 - Speex encoding via libspeex
359 - 4:2:2 H.264 decoding support
360 - 4:2:2 and 4:4:4 H.264 encoding with libx264
361 - Pulseaudio input device
362 - replacement Indeo 3 decoder
363 - TLS/SSL and HTTPS protocol support
364 - AVOptions API rewritten and documented
365 - most of CODEC_FLAG2_*, some CODEC_FLAG_* and many codec-specific fields in
366 AVCodecContext deprecated. Codec private options should be used instead.
367 - Properly working defaults in libx264 wrapper, support for native presets.
368 - Encrypted OMA files support
369 - Discworld II BMV decoding support
371 - OS X Video Decoder Acceleration (VDA) support
372 - CRI ADX audio format muxer and demuxer
373 - Playstation Portable PMP format demuxer
374 - PCM format support in OMA demuxer
376 - Dxtory capture format decoder
377 - v410 QuickTime uncompressed 4:4:4 10-bit encoder and decoder
379 - Simple segmenting muxer
386 - E-AC-3 audio encoder
387 - ac3enc: add channel coupling support
388 - floating-point sample format support for (E-)AC-3, DCA, AAC, Vorbis decoders
389 - H.264/MPEG frame-level multithreading
390 - av_metadata_* functions renamed to av_dict_* and moved to libavutil
391 - 4:4:4 H.264 decoding support
392 - 10-bit H.264 optimizations for x86
393 - bump libswscale for recently reported ABI break
398 - VP8 frame-level multithreading
399 - NEON optimizations for VP8
400 - removed a lot of deprecated API cruft
401 - FFT and IMDCT optimizations for AVX (Sandy Bridge) processors
403 - SMPTE 302M AES3 audio decoder
404 - ffmpeg no longer quits after the 'q' key is pressed; use 'ctrl+c' instead
405 - 9 bits and 10 bits per sample support in the H.264 decoder
410 - WebM support in Matroska de/muxer
411 - low overhead Ogg muxing
413 - VP8 de/encoding via libvpx
414 - Demuxer for On2's IVF format
415 - Pictor/PC Paint decoder
417 - libfaad2 wrapper removed
418 - DTS-ES extension (XCh) decoding support
420 - RTSP tunneling over HTTP
421 - RTP depacketization of SVQ3
422 - -strict inofficial replaced by -strict unofficial
423 - ffplay -exitonkeydown and -exitonmousedown options added
424 - native GSM / GSM MS decoder
425 - RTP depacketization of QDM2
426 - ANSI/ASCII art playback system
427 - Lego Mindstorms RSO de/muxer
428 - SubRip subtitle file muxer and demuxer
429 - Chinese AVS encoding via libxavs
430 - ffprobe -show_packets option added
431 - RTP packetization of Theora and Vorbis
432 - RTP depacketization of MP4A-LATM
433 - RTP packetization and depacketization of VP8
435 - Apple HTTP Live Streaming demuxer
438 - G.722 ADPCM audio encoder/decoder
441 - frei0r wrapper filter
442 - change crop filter syntax to width:height:x:y
443 - make the crop filter accept parametric expressions
444 - make ffprobe accept AVFormatContext options
447 - Demuxer for Leitch/Harris' VR native stream format (LXF)
448 - RTP depacketization of the X-QT QuickTime format
449 - SAP (Session Announcement Protocol, RFC 2974) muxer and demuxer
451 - ffmpeg -crop* options removed
452 - transpose filter added
453 - ffmpeg -force_key_frames option added
454 - demuxer for receiving raw rtp:// URLs without an SDP description
455 - single stream LATM/LOAS decoder
456 - setpts filter added
457 - Win64 support for optimized x86 assembly functions
458 - MJPEG/AVI1 to JPEG/JFIF bitstream filter
459 - ASS subtitle encoder and decoder
460 - IEC 61937 encapsulation for E-AC-3, TrueHD, DTS-HD (for HDMI passthrough)
461 - overlay filter added
462 - rename aspect filter to setdar, and pixelaspect to setsar
464 - Mobotix .mxg demuxer
465 - frei0r source added
466 - hqdn3d filter added
467 - RTP depacketization of QCELP
469 - gradfun filter added
471 - replace the ocv_smooth filter with a more generic ocv filter
472 - Windows Televison (WTV) demuxer
473 - FFmpeg metadata format muxer and demuxer
474 - SubRip (srt) subtitle decoder
475 - floating-point AC-3 encoder added
477 - ffmpeg -copytb option added
479 - Wing Commander IV movies decoder added
481 - Bink version 'b' audio and video decoder
482 - Bitmap Brothers JV playback system
483 - Apple HTTP Live Streaming protocol handler
484 - sndio support for playback and record
485 - Linux framebuffer input device added
486 - Chronomaster DFA decoder
487 - Mobotix MxPEG decoder
488 - AAC encoding via libvo-aacenc
489 - AMR-WB encoding via libvo-amrwbenc
491 - fieldorder video filter added
496 - PB-frame decoding for H.263
497 - deprecated vhook subsystem removed
498 - deprecated old scaler removed
500 - Alpha channel scaler
502 - RTP packetization of H.263
503 - RTP packetization of AMR
504 - RTP depacketization of Vorbis
505 - CorePNG decoding support
506 - Cook multichannel decoding support
507 - introduced avlanguage helpers in libavformat
508 - 8088flex TMV demuxer and decoder
509 - per-stream language-tags extraction in asfdec
510 - V210 decoder and encoder
511 - remaining GPL parts in AC-3 decoder converted to LGPL
513 - SoX native format muxer and demuxer
514 - AMR-NB decoding/encoding, AMR-WB decoding via OpenCORE libraries
516 - Electronic Arts Madcow decoder
517 - DivX (XSUB) subtitle encoder
518 - nonfree libamr support for AMR-NB/WB decoding/encoding removed
519 - experimental AAC encoder
520 - RTP depacketization of ASF and RTSP from WMS servers
521 - RTMP support in libavformat
522 - noX handling for OPT_BOOL X options
524 - IEC-61937 compatible Muxer
526 - Bluray (PGS) subtitle decoder
527 - LPCM support in MPEG-TS (HDMV RID as found on Blu-ray disks)
529 - Core Audio Format demuxer
531 - MD STUDIO audio demuxer
532 - RF64 support in WAV demuxer
533 - MPEG-4 Audio Lossless Coding (ALS) decoder
534 - -formats option split into -formats, -codecs, -bsfs, and -protocols
536 - CDG demuxer and decoder
538 - Auravision Aura 1 and 2 decoders
539 - Deluxe Paint Animation playback system
541 - Adobe Filmstrip muxer and demuxer
542 - RTP depacketization of H.263
543 - Bink demuxer and audio/video decoders
544 - enable symbol versioning by default for linkers that support it
545 - IFF PBM/ILBM bitmap decoder
548 - RTP depacketization of AMR
554 - Kega Game Video (KGV1) decoder
555 - VorbisComment writing for FLAC, Ogg FLAC and Ogg Speex files
556 - RTP depacketization of Theora
557 - HTTP Digest authentication
558 - RTMP/RTMPT/RTMPS/RTMPE/RTMPTE protocol support via librtmp
559 - Psygnosis YOP demuxer and video decoder
560 - spectral extension support in the E-AC-3 decoder
561 - unsharp video filter
562 - RTP hinting in the mov/3gp/mp4 muxer
563 - Dirac in Ogg demuxing
564 - seek to keyframes in Ogg
565 - 4:2:2 and 4:4:4 Theora decoding
566 - 35% faster VP3/Theora decoding
567 - faster AAC decoding
568 - faster H.264 decoding
569 - RealAudio 1.0 (14.4K) encoder
574 - DV50 AKA DVCPRO50 encoder, decoder, muxer and demuxer
575 - TechSmith Camtasia (TSCC) video decoder
576 - IBM Ultimotion (ULTI) video decoder
577 - Sierra Online audio file demuxer and decoder
578 - Apple QuickDraw (qdrw) video decoder
579 - Creative ADPCM audio decoder (16 bits as well as 8 bits schemes)
580 - Electronic Arts Multimedia (WVE/UV2/etc.) file demuxer
581 - Miro VideoXL (VIXL) video decoder
582 - H.261 video encoder
584 - Nullsoft Video (NSV) file demuxer
585 - Shorten audio decoder
587 - Apple Lossless Audio Codec (ALAC) decoder
588 - Winnov WNV1 video decoder
589 - Autodesk Animator Studio Codec (AASC) decoder
590 - Indeo 2 video decoder
591 - Fraps FPS1 video decoder
592 - Snow video encoder/decoder
593 - Sonic audio encoder/decoder
594 - Vorbis audio decoder
595 - Macromedia ADPCM decoder
596 - Duck TrueMotion 2 video decoder
597 - support for decoding FLX and DTA extensions in FLIC files
598 - H.264 custom quantization matrices support
599 - ffserver fixed, it should now be usable again
601 - Real Cooker audio decoder
602 - TrueSpeech audio decoder
603 - WMA2 audio decoder fixed, now all files should play correctly
604 - RealAudio 14.4 and 28.8 decoders fixed
606 - build system improvements
607 - tabs and trailing whitespace removed from the codebase
608 - CamStudio video decoder
609 - AIFF/AIFF-C audio format, encoding and decoding
610 - ADTS AAC file reading and writing
611 - Creative VOC file reading and writing
612 - American Laser Games multimedia (*.mm) playback system
613 - Zip Motion Blocks Video decoder
614 - improved Theora/VP3 decoder
615 - True Audio (TTA) decoder
616 - AVS demuxer and video decoder
618 - Smacker demuxer and decoder
619 - NuppelVideo/MythTV demuxer and RTjpeg decoder
621 - MPEG-2 intra VLC support
622 - MPEG-2 4:2:2 encoder
623 - Flash Screen Video decoder
625 - Chinese AVS decoder
628 - VC-1/WMV3/WMV9 video decoder
631 - VMware video decoder
634 - WavPack lossless audio decoder
635 - Targa (.TGA) picture decoder
636 - Vorbis audio encoder
637 - Delphine Software .cin demuxer/audio and video decoder
638 - Tiertex .seq demuxer/video decoder
640 - TIFF picture encoder and decoder
641 - GIF picture decoder
642 - Intel Music Coder decoder
643 - Zip Motion Blocks Video encoder
645 - Flash Screen Video encoder
646 - Theora encoding via libtheora
649 - GSM-MS encoder and decoder
651 - DXA demuxer and decoder
653 - Gamecube movie (.THP) playback system
654 - Blackfin optimizations
655 - Interplay C93 demuxer and video decoder
656 - Bethsoft VID demuxer and video decoder
659 - V.Flash PTX decoder
660 - RoQ muxer, RoQ audio encoder
661 - Renderware TXD demuxer and decoder
662 - extern C declarations for C++ removed from headers
663 - sws_flags command line option
667 - OS/2 support removed and restored again
670 - additional SPARC (VIS) optimizations
672 - slice-based parallel H.264 decoding
673 - Monkey's Audio demuxer and decoder
674 - AMV audio and video decoder
676 - H.264 PAFF decoding
677 - Nellymoser ASAO decoder
678 - Beam Software SIFF demuxer and decoder
679 - libvorbis Vorbis decoding removed in favor of native decoder
680 - IntraX8 (J-Frame) subdecoder for WMV2 and VC-1
681 - Ogg (Theora, Vorbis and FLAC) muxer
682 - The "device" muxers and demuxers are now in a new libavdevice library
683 - PC Paintbrush PCX decoder
684 - Sun Rasterfile decoder
685 - TechnoTrend PVA demuxer
686 - Linux Media Labs MPEG-4 (LMLM4) demuxer
687 - AVM2 (Flash 9) SWF muxer
688 - QT variant of IMA ADPCM encoder
690 - iPod/iPhone compatible mp4 muxer
692 - MSN TCP Webcam stream demuxer
693 - RL2 demuxer / decoder
696 - non-recursive Makefiles
698 - MAXIS EA XA (.xa) demuxer / decoder
702 - Electronic Arts CMV decoder
703 - Motion Pixels Video decoder
704 - Motion Pixels MVI demuxer
705 - removed animated GIF decoder/demuxer
706 - D-Cinema audio muxer
707 - Electronic Arts TGV decoder
708 - Apple Lossless Audio Codec (ALAC) encoder
710 - floating point PCM encoder/decoder
712 - DV100 AKA DVCPRO HD decoder and demuxer
713 - E-AC-3 support added to AC-3 decoder
714 - Nellymoser ASAO encoder
715 - ASS and SSA demuxer and muxer
716 - liba52 wrapper removed
717 - SVQ3 watermark decoding support
718 - Speex decoding via libspeex
719 - Electronic Arts TGQ decoder
721 - QCELP / PureVoice decoder
723 - hybrid WavPack support
724 - R3D REDCODE demuxer
725 - ALSA support for playback and record
726 - Electronic Arts TQI decoder
727 - OpenJPEG based JPEG 2000 decoder
728 - NC (NC4600) camera file demuxer
729 - Gopher client support
731 - generic metadata API
736 - DV encoder, DV muxer
737 - Microsoft RLE video decoder
738 - Microsoft Video-1 decoder
739 - Apple Animation (RLE) decoder
740 - Apple Graphics (SMC) decoder
741 - Apple Video (RPZA) decoder
743 - Sega FILM (CPK) file demuxer
744 - Westwood multimedia support (VQA & AUD files)
745 - Id Quake II CIN playback support
747 - FLIC playback support
748 - RealVideo 2.0 (RV20) decoder
749 - Duck TrueMotion v1 (DUCK) video decoder
750 - Sierra VMD demuxer and video decoder
751 - MSZH and ZLIB decoder support
755 - rate distortion optimal cbp support
756 - rate distorted optimal ac prediction for MPEG-4
757 - rate distorted optimal lambda->qp support
758 - AAC encoding with libfaac
759 - Sunplus JPEG codec (SP5X) support
760 - use Lagrange multiplier instead of QP for ratecontrol
761 - Theora/VP3 decoding support
762 - XA and ADX ADPCM codecs
763 - export MPEG-2 active display area / pan scan
764 - Add support for configuring with IBM XLC
765 - floating point AAN DCT
766 - initial support for zygo video (not complete)
768 - new audio/video parser API
770 - av_read_frame() and av_seek_frame() support
771 - missing last frame fixes
772 - seek by mouse in ffplay
773 - noise reduction of DCT coefficients
774 - H.263 OBMC & 4MV support
775 - H.263 alternative inter vlc support
777 - H.263 slice structured mode
778 - interlaced DCT support for MPEG-2 encoding
779 - stuffing to stay above min_bitrate
780 - MB type & QP visualization
781 - frame stepping for ffplay
782 - interlaced motion estimation
783 - alternate scantable support
784 - SVCD scan offset support
787 - quantizer noise shaping
788 - G.726 ADPCM audio codec
790 - multithreaded/SMP motion estimation
791 - multithreaded/SMP encoding for MPEG-1/MPEG-2/MPEG-4/H.263
792 - multithreaded/SMP decoding for MPEG-2
794 - Metrowerks CodeWarrior suppport
795 - H.263+ custom pcf support
796 - nicer output for 'ffmpeg -formats'
798 - SGI image format, encoding and decoding
799 - H.264 loop filter support
800 - H.264 CABAC support
801 - nicer looking arrows for the motion vector visualization
802 - improved VCD support
803 - audio timestamp drift compensation
804 - MPEG-2 YUV 422/444 support
805 - polyphase kaiser windowed sinc and blackman nuttall windowed sinc audio resample
806 - better image scaling
808 - correctly interleave packets during encoding
809 - VIS optimized motion compensation
810 - intra_dc_precision>0 encoding support
811 - support reuse of motion vectors/MB types/field select values of the source video
812 - more accurate deblock filter
814 - many optimizations and bugfixes
815 - FunCom ISS audio file demuxer and according ADPCM decoding
820 - MPEG-2 video encoding (Michael)
821 - Id RoQ playback subsystem (Mike Melanson and Tim Ferguson)
822 - Wing Commander III Movie (.mve) file playback subsystem (Mike Melanson
824 - Xan DPCM audio decoder (Mario Brito)
825 - Interplay MVE playback subsystem (Mike Melanson)
826 - Duck DK3 and DK4 ADPCM audio decoders (Mike Melanson)
831 - RealAudio 1.0 (14_4) and 2.0 (28_8) native decoders. Author unknown, code from mplayerhq
832 (originally from public domain player for Amiga at http://www.honeypot.net/audio)
833 - current version now also compiles with older GCC (Fabrice)
834 - 4X multimedia playback system including 4xm file demuxer (Mike
835 Melanson), and 4X video and audio codecs (Michael)
836 - Creative YUV (CYUV) decoder (Mike Melanson)
837 - FFV1 codec (our very simple lossless intra only codec, compresses much better
838 than HuffYUV) (Michael)
839 - ASV1 (Asus), H.264, Intel indeo3 codecs have been added (various)
840 - tiny PNG encoder and decoder, tiny GIF decoder, PAM decoder (PPM with
841 alpha support), JPEG YUV colorspace support. (Fabrice Bellard)
842 - ffplay has been replaced with a newer version which uses SDL (optionally)
843 for multiplatform support (Fabrice)
844 - Sorenson Version 3 codec (SVQ3) support has been added (decoding only) - donated
846 - AMR format has been added (Johannes Carlsson)
847 - 3GP support has been added (Johannes Carlsson)
848 - VP3 codec has been added (Mike Melanson)
849 - more MPEG-1/2 fixes
850 - better multiplatform support, MS Visual Studio fixes (various)
851 - AltiVec optimizations (Magnus Damn and others)
852 - SH4 processor support has been added (BERO)
853 - new public interfaces (avcodec_get_pix_fmt) (Roman Shaposhnick)
854 - VOB streaming support (Brian Foley)
855 - better MP3 autodetection (Andriy Rysin)
856 - qpel encoding (Michael)
857 - 4mv+b frames encoding finally fixed (Michael)
858 - chroma ME (Michael)
859 - 5 comparison functions for ME (Michael)
860 - B-frame encoding speedup (Michael)
861 - WMV2 codec (unfinished - Michael)
862 - user specified diamond size for EPZS (Michael)
863 - Playstation STR playback subsystem, still experimental (Mike and Michael)
864 - ASV2 codec (Michael)
865 - CLJR decoder (Alex)
867 .. And lots more new enhancements and fixes.
872 - completely new integer only MPEG audio layer 1/2/3 decoder rewritten
874 - Recoded DCT and motion vector search with gcc (no longer depends on nasm)
875 - fix quantization bug in AC3 encoder
876 - added PCM codecs and format. Corrected WAV/AVI/ASF PCM issues
877 - added prototype ffplay program
878 - added GOB header parsing on H.263/H.263+ decoder (Juanjo)
879 - bug fix on MCBPC tables of H.263 (Juanjo)
880 - bug fix on DC coefficients of H.263 (Juanjo)
881 - added Advanced Prediction Mode on H.263/H.263+ decoder (Juanjo)
882 - now we can decode H.263 streams found in QuickTime files (Juanjo)
883 - now we can decode H.263 streams found in VIVO v1 files(Juanjo)
884 - preliminary RTP "friendly" mode for H.263/H.263+ coding. (Juanjo)
885 - added GOB header for H.263/H.263+ coding on RTP mode (Juanjo)
886 - now H.263 picture size is returned on the first decoded frame (Juanjo)
887 - added first regression tests
888 - added MPEG-2 TS demuxer
889 - new demux API for libav
890 - more accurate and faster IDCT (Michael)
891 - faster and entropy-controlled motion search (Michael)
892 - two pass video encoding (Michael)
893 - new video rate control (Michael)
894 - added MSMPEG4V1, MSMPEGV2 and WMV1 support (Michael)
895 - great performance improvement of video encoders and decoders (Michael)
896 - new and faster bit readers and vlc parsers (Michael)
897 - high quality encoding mode: tries all macroblock/VLC types (Michael)
898 - added DV video decoder
899 - preliminary RTP/RTSP support in ffserver and libavformat
900 - H.263+ AIC decoding/encoding support (Juanjo)
901 - VCD MPEG-PS mode (Juanjo)
902 - PSNR stuff (Juanjo)
903 - simple stats output (Juanjo)
904 - 16-bit and 15-bit RGB/BGR/GBR support (Bisqwit)
909 - some header fixes (Zdenek Kabelac <kabi at informatics.muni.cz>)
910 - many MMX optimizations (Nick Kurshev <nickols_k at mail.ru>)
911 - added configure system (actually a small shell script)
912 - added MPEG audio layer 1/2/3 decoding using LGPL'ed mpglib by
913 Michael Hipp (temporary solution - waiting for integer only
915 - fixed VIDIOCSYNC interrupt
916 - added Intel H.263 decoding support ('I263' AVI fourCC)
917 - added Real Video 1.0 decoding (needs further testing)
918 - simplified image formats again. Added PGM format (=grey
919 pgm). Renamed old PGM to PGMYUV.
920 - fixed msmpeg4 slice issues (tell me if you still find problems)
921 - fixed OpenDivX bugs with newer versions (added VOL header decoding)
922 - added support for MPlayer interface
923 - added macroblock skip optimization
924 - added MJPEG decoder
925 - added mmx/mmxext IDCT from libmpeg2
926 - added pgmyuvpipe, ppm, and ppm_pipe formats (original patch by Celer
927 <celer at shell.scrypt.net>)
928 - added pixel format conversion layer (e.g. for MJPEG or PPM)
929 - added deinterlacing option
931 - MPEG-4 vol header fixes (Jonathan Marsden <snmjbm at pacbell.net>)
932 - ARM optimizations (Lionel Ulmer <lionel.ulmer at free.fr>).
933 - Windows porting of file converter
934 - added MJPEG raw format (input/ouput)
935 - added JPEG image format support (input/output)
940 - fixed some std header definitions (Bjorn Lindgren
941 <bjorn.e.lindgren at telia.com>).
942 - added MPEG demuxer (MPEG-1 and 2 compatible).
944 - added prototype RM demuxer
945 - added AC3 decoding (done with libac3 by Aaron Holtzman)
946 - added decoding codec parameter guessing (.e.g. for MPEG, because the
947 header does not include them)
948 - fixed header generation in MPEG-1, AVI and ASF muxer: wmplayer can now
949 play them (only tested video)
950 - fixed H.263 white bug
951 - fixed phase rounding in img resample filter
952 - add MMX code for polyphase img resample filter
953 - added CPU autodetection
954 - added generic title/author/copyright/comment string handling (ASF and RM
956 - added SWF demux to extract MP3 track (not usable yet because no MP3
958 - added fractional frame rate support
959 - codecs are no longer searched by read_header() (should fix ffserver
965 - BGR24 patch (initial patch by Jeroen Vreeken <pe1rxq at amsat.org>)
966 - fixed raw yuv output
967 - added motion rounding support in MPEG-4
968 - fixed motion bug rounding in MSMPEG4
969 - added B-frame handling in video core
970 - added full MPEG-1 decoding support
971 - added partial (frame only) MPEG-2 support
972 - changed the FOURCC code for H.263 to "U263" to be able to see the
973 +AVI/H.263 file with the UB Video H.263+ decoder. MPlayer works with
974 this +codec ;) (JuanJo).
975 - Halfpel motion estimation after MB type selection (JuanJo)
976 - added pgm and .Y.U.V output format
977 - suppressed 'img:' protocol. Simply use: /tmp/test%d.[pgm|Y] as input or
979 - added pgmpipe I/O format (original patch from Martin Aumueller
980 <lists at reserv.at>, but changed completely since we use a format
981 instead of a protocol)
986 - added H.263/MPEG-4/MSMPEG4 decoding support. MPEG-4 decoding support
987 (for OpenDivX) is almost complete: 8x8 MVs and rounding are
988 missing. MSMPEG4 support is complete.
989 - added prototype MPEG-1 decoder. Only I- and P-frames handled yet (it
990 can decode ffmpeg MPEGs :-)).
991 - added libavcodec API documentation (see apiexample.c).
992 - fixed image polyphase bug (the bottom of some images could be
994 - added support for non clipped motion vectors (decoding only)
995 and image sizes non-multiple of 16
996 - added support for AC prediction (decoding only)
997 - added file overwrite confirmation (can be disabled with -y)
998 - added custom size picture to H.263 using H.263+ (Juanjo)
1003 - added MSMPEG4 (aka DivX) compatible encoder. Changed default codec
1004 of AVI and ASF to DIV3.
1005 - added -me option to set motion estimation method
1006 (default=log). suppressed redundant -hq option.
1007 - added options -acodec and -vcodec to force a given codec (useful for
1010 - improved dct_quantize speed
1011 - factorized some motion estimation code
1016 - removing grab code from ffserver and moved it to ffmpeg. Added
1017 multistream support to ffmpeg.
1018 - added timeshifting support for live feeds (option ?date=xxx in the
1020 - added high quality image resize code with polyphase filter (need
1021 mmx/see optimization). Enable multiple image size support in ffserver.
1022 - added multi live feed support in ffserver
1023 - suppressed master feature from ffserver (it should be done with an
1024 external program which opens the .ffm url and writes it to another
1026 - added preliminary support for video stream parsing (WAV and AVI half
1027 done). Added proper support for audio/video file conversion in
1029 - added preliminary support for video file sending from ffserver
1030 - redesigning I/O subsystem: now using URL based input and output
1032 - added WAV format support
1033 - added "tty user interface" to ffmpeg to stop grabbing gracefully
1034 - added MMX/SSE optimizations to SAD (Sums of Absolutes Differences)
1035 (Juan J. Sierralta P. a.k.a. "Juanjo" <juanjo at atmlab.utfsm.cl>)
1036 - added MMX DCT from mpeg2_movie 1.5 (Juanjo)
1037 - added new motion estimation algorithms, log and phods (Juanjo)
1038 - changed directories: libav for format handling, libavcodec for
1044 - added stereo in MPEG audio encoder
1049 - added 'high quality' mode which use motion vectors. It can be used in
1050 real time at low resolution.
1051 - fixed rounding problems which caused quality problems at high
1052 bitrates and large GOP size
1055 version 0.3.2: small fixes
1061 version 0.3.1: added avi/divx support
1064 - added MPEG-4 codec compatible with OpenDivX. It is based on the H.263 codec
1065 - added sound for flash format (not tested)
1068 version 0.3: initial public release