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
19 - aliases and defaults for Ogg subtypes (opus, spx)
20 - HEVC/H.265 RTP payload format (draft v6) packetizer and depacketizer
21 - avplay now exits by default at the end of playback
22 - XCB-based screen-grabber
23 - creating DASH compatible fragmented MP4, MPEG-DASH segmenting muxer
24 - H.261 RTP payload format (RFC 4587) depacketizer and experimental packetizer
27 - OpenH264 encoder wrapper
28 - Support DNx100 (960x720@8)
29 - Direct3D11-accelerated decoding
30 - DXVA2-accelerated HEVC decoding
31 - AAC ELD 480 decoding
32 - Intel QSV-accelerated H.264 decoding
33 - DSS SP decoder and DSS demuxer
34 - RTP depacketizer for AC3 payload format (RFC 4184)
35 - RTP depacketizer for loss tolerant payload format for MP3 audio (RFC 5219)
36 - RTP depacketizer for DV (RFC 6469)
38 - RTP depacketization of T.140 text (RFC 4103)
39 - VP9 RTP payload format (draft 0) experimental depacketizer
41 - DTS lossless extension (XLL) decoding (not lossless, disabled by default)
42 - Intel QSV-accelerated H.264 encoding
43 - MMAL-accelerated H.264 decoding
44 - DTS decoding through libdcadec
45 - Canopus HQ/HQA decoder
46 - Automatically rotate videos based on metadata in avconv
47 - improved Quickdraw compatibility
48 - NVIDIA NVENC-accelerated H.264 and HEVC encoding support
49 - Multipart JPEG demuxer
50 - Support the extended vp9 profiles in the libvpx wrapper
51 - Hap decoder and encoder
52 - DirectDraw Surface image/texture decoder
53 - rewritten ASF demuxer
54 - Go2Meeting decoding support
55 - Intel QSV-accelerated MPEG-2 video and HEVC encoding
56 - bitstream filter for converting HEVC from MP4 to Annex B
57 - Intel QSV-accelerated MPEG-2 video and HEVC decoding
58 - Support DNx100 (1440x1080@8)
60 - Screenpresso SPV1 decoding
61 - zero-copy Intel QSV transcoding in avconv
62 - libkvazaar HEVC encoder
63 - innoHeim/Rsupport Screen Capture Codec decoder
64 - support encoding 16-bit RLE SGI images
65 - support Apple AVFoundation video capture
66 - G.723.1 muxer and encoder
68 - VAAPI-accelerated format conversion and scaling
69 - libnpp/CUDA-accelerated format conversion and scaling
70 - VAAPI-accelerate H.264/HEVC/MJPEG encoding
71 - Generic OpenMAX IL encoder with support for Raspberry Pi
72 - MMAL-accelerated MPEG-2 and VC-1 decoding
75 - Duck TrueMotion 2.0 Real Time decoder
76 - Intel QSV video scaling and deinterlacing filter
77 - Support MOV with multiple sample description tables
78 - OpenH264 decoder wrapper
79 - Removed the legacy X11 screen grabber, use XCB instead
80 - HDCD decoding filter through libhdcd
85 - shuffleplanes filter
86 - replaygain data export
87 - Alias PIX image encoder and decoder
88 - BRender PIX image decoder
89 - Amazing Studio PAF playback support
91 - BMP standalone parser
92 - OpenEXR image decoder
93 - support encoding and decoding 4-channel SGI images
94 - support decoding 16-bit RLE SGI images
96 - LucasArts SMUSH SANM video decoder
97 - LucasArts SMUSH VIMA audio decoder (ADPCM)
98 - LucasArts SMUSH demuxer
99 - MP2 encoding via TwoLAME
101 - Silicon Graphics RLE 8-bit video decoder
102 - Silicon Graphics Motion Video Compressor 1 & 2 decoder
103 - Silicon Graphics Movie demuxer
104 - On2 AVC (Audio for Video) decoder
105 - support for decoding through DXVA2 in avconv
106 - libbs2b-based stereo-to-binaural audio filter
107 - native Opus decoder
108 - display matrix export and rotation API
109 - drop avserver, it was unmaintained for years and largely broken
111 - request Icecast metadata by default
112 - support for using metadata in stream specifiers in avtools
113 - Matroska 3D support
118 - support ID3v2 tags in ASF files
119 - reference-counting for AVFrame and AVPacket data
120 - avconv now fails when input options are used for output file
122 - avconv options -filter_script and -filter_complex_script, which allow a
123 filtergraph description to be read from a file
124 - uniform options syntax across all filters
127 - asetpts filter (same as setpts, but for audio)
128 - trim and atrim filters
129 - avconv -t and -ss (output-only) options are now sample-accurate when
131 - Matroska muxer can now put the index at the beginning of the file.
132 - avconv -deinterlace option removed, the yadif filter should be used instead
133 - Apple Intermediate Codec decoder
134 - Escape 130 video decoder
135 - support for slice multithreading in libavfilter
136 - VC-1 interlaced B-frame support
137 - support for WavPack muxing (raw and in Matroska)
139 - WavPack encoding through libwavpack
140 - Added the -n parameter to avconv
142 - when transcoding with avconv (i.e. not streamcopying), -ss is now accurate
143 even when used as an input option. Previous behavior can be restored with
144 the -noaccurate_seek option.
145 - avconv -t option can now be used for inputs, to limit the duration of
146 data read from an input file
147 - Voxware MetaSound decoder
149 - Error Resilient AAC syntax (ER AAC LC) decoding
150 - Low Delay AAC (ER AAC LD) decoding
151 - mux chapters in ASF files
152 - Opus in Ogg demuxing
153 - Enhanced Low Delay AAC (ER AAC ELD) decoding (no LD SBR support)
155 - HNM version 4 demuxer and video decoder
157 - raw HEVC, HEVC in MOV/MP4, HEVC in Matroska, HEVC in MPEG-TS demuxing
158 - remove avplay -vismv option, which has not worked for a long time
160 - setsar/setdar filters now support variables in ratio expressions
161 - dar variable in the scale filter now returns the actual DAR (i.e. a * sar)
163 - support for decoding through VDPAU in avconv (the -hwaccel option)
164 - remove mp3_header_(de)compress bitstream filters
165 - stereoscopic 3d metadata handling
166 - png standalone parser
167 - WebP encoding via libwebp
170 - Mirillis FIC video decoder
172 - compand audio filter
176 - av_basename and av_dirname
177 - adobe and limelight publisher authentication in RTMP
178 - VDPAU hardware acceleration through normal hwaccel
183 - ashowinfo audio filter
184 - 24-bit FLAC encoding
185 - audio volume filter
186 - deprecated the avconv -vol option. the volume filter is to be used instead.
187 - multi-channel ALAC encoding up to 7.1
188 - TAK demuxer, parser, and decoder
189 - adaptive frame-level multithreading for H.264
193 - metadata (INFO tag) support in WAV muxer
194 - support for building DLLs using MSVC
195 - remove avserver daemon mode
196 - support building on the Plan 9 operating system
197 - ffv1: support version 1.3
202 - XWD encoder and decoder
203 - Support for fragmentation in the mov/mp4 muxer
204 - ISMV (Smooth Streaming) muxer
205 - CDXL demuxer and decoder
206 - Apple ProRes encoder
207 - Sun Rasterfile Encoder
209 - ID3v2 attached pictures reading and writing
210 - WMA Lossless decoder
212 - RealAudio Lossless decoder
214 - drop support for avconv without libavfilter
215 - add libavresample audio conversion library
216 - audio filters support in libavfilter and avconv
220 - avprobe output is now standard INI or JSON. The old format can still
221 be used with -of old.
222 - Indeo Audio decoder
223 - channelsplit audio filter
224 - RTMPT protocol support
225 - iLBC encoding/decoding via libilbc
226 - Microsoft Screen 1 decoder
228 - audio channel mapping filter
229 - Microsoft ATC Screen decoder
231 - TechSmith Screen Codec 2 decoder
232 - AAC encoding via libfdk-aac
233 - Microsoft Expression Encoder Screen decoder
234 - RTMPS protocol support
235 - RTMPTS protocol support
236 - JPEG 2000 encoding support through OpenJPEG
237 - G.723.1 demuxer and decoder
238 - RTMPE protocol support
239 - RTMPTE protocol support
240 - Canopus Lossless Codec decoder
241 - avconv -shortest option is now per-output file,
242 -pass and -passlogfile are now per-output stream
244 - Microsoft Screen 2 decoder
245 - RTP depacketization of JPEG
246 - Smooth Streaming live segmenter muxer
247 - RTP packetization of JPEG
248 - Opus decoder and encoder using libopus
249 - remove -same_quant, it hasn't worked for years
250 - support for building with MSVC
261 - Automatic thread count based on detection number of (available) CPU cores
262 - Deprecate libpostproc. If desired, the switch --enable-postproc will
263 enable it but it may be removed in a later Libav release.
264 - rv34: frame-level multi-threading
265 - optimized iMDCT transform on x86 using SSE for for mpegaudiodec
271 - Flash Screen Video 2 decoder
272 - ffplay/ffprobe/ffserver renamed to avplay/avprobe/avserver
273 - ffmpeg deprecated, added avconv, which is almost the same for now, except
274 for a few incompatible changes in the options, which will hopefully make them
275 easier to use. The changes are:
276 * The options placement is now strictly enforced! While in theory the
277 options for ffmpeg should be given in [input options] -i INPUT [output
278 options] OUTPUT order, in practice it was possible to give output options
279 before the -i and it mostly worked. Except when it didn't - the behavior was
280 a bit inconsistent. In avconv, it is not possible to mix input and output
281 options. All non-global options are reset after an input or output filename.
282 * All per-file options are now truly per-file - they apply only to the next
283 input or output file and specifying different values for different files
284 will now work properly (notably -ss and -t options).
285 * All per-stream options are now truly per-stream - it is possible to
286 specify which stream(s) should a given option apply to. See the Stream
287 specifiers section in the avconv manual for details.
288 * In ffmpeg some options (like -newvideo/-newaudio/...) are irregular in the
289 sense that they're specified after the output filename instead of before,
290 like all other options. In avconv this irregularity is removed, all options
291 apply to the next input or output file.
292 * -newvideo/-newaudio/-newsubtitle options were removed. Not only were they
293 irregular and highly confusing, they were also redundant. In avconv the -map
294 option will create new streams in the output file and map input streams to
295 them. E.g. avconv -i INPUT -map 0 OUTPUT will create an output stream for
296 each stream in the first input file.
297 * The -map option now has slightly different and more powerful syntax:
298 + Colons (':') are used to separate file index/stream type/stream index
299 instead of dots. Comma (',') is used to separate the sync stream instead
300 of colon.. This is done for consistency with other options.
301 + It's possible to specify stream type. E.g. -map 0:a:2 creates an
302 output stream from the third input audio stream.
303 + Omitting the stream index now maps all the streams of the given type,
304 not just the first. E.g. -map 0:s creates output streams for all the
305 subtitle streams in the first input file.
306 + Since -map can now match multiple streams, negative mappings were
307 introduced. Negative mappings disable some streams from an already
308 defined map. E.g. '-map 0 -map -0:a:1' means 'create output streams for
309 all the stream in the first input file, except for the second audio
311 * There is a new option -c (or -codec) for choosing the decoder/encoder to
312 use, which allows to precisely specify target stream(s) consistently with
313 other options. E.g. -c:v lib264 sets the codec for all video streams, -c:a:0
314 libvorbis sets the codec for the first audio stream and -c copy copies all
315 the streams without reencoding. Old -vcodec/-acodec/-scodec options are now
317 * It is now possible to precisely specify which stream should an AVOption
318 apply to. E.g. -b:v:0 2M sets the bitrate for the first video stream, while
319 -b:a 128k sets the bitrate for all audio streams. Note that the old -ab 128k
320 syntax is deprecated and will stop working soon.
321 * -map_chapters now takes only an input file index and applies to the next
322 output file. This is consistent with how all the other options work.
323 * -map_metadata now takes only an input metadata specifier and applies to
324 the next output file. Output metadata specifier is now part of the option
325 name, similarly to the AVOptions/map/codec feature above.
326 * -metadata can now be used to set metadata on streams and chapters, e.g.
327 -metadata:s:1 language=eng sets the language of the first stream to 'eng'.
328 This made -vlang/-alang/-slang options redundant, so they were removed.
329 * -qscale option now uses stream specifiers and applies to all streams, not
330 just video. I.e. plain -qscale number would now apply to all streams. To get
331 the old behavior, use -qscale:v. Also there is now a shortcut -q for -qscale
332 and -aq is now an alias for -q:a.
333 * -vbsf/-absf/-sbsf options were removed and replaced by a -bsf option which
334 uses stream specifiers. Use -bsf:v/a/s instead of the old options.
335 * -itsscale option now uses stream specifiers, so its argument is only the
337 * -intra option was removed, use -g 0 for the same effect.
338 * -psnr option was removed, use -flags +psnr for the same effect.
339 * -vf option is now an alias to the new -filter option, which uses stream specifiers.
340 * -vframes/-aframes/-dframes options are now aliases to the new -frames option.
341 * -vtag/-atag/-stag options are now aliases to the new -tag option.
343 - Windows Media Image decoder
347 - libcdio-paranoia input device for audio CD grabbing
349 - Apple ProRes decoder
350 - CELT in Ogg demuxing
351 - VC-1 interlaced decoding
352 - lut, lutrgb, and lutyuv filters
355 - Speex encoding via libspeex
356 - 4:2:2 H.264 decoding support
357 - 4:2:2 and 4:4:4 H.264 encoding with libx264
358 - Pulseaudio input device
359 - replacement Indeo 3 decoder
360 - TLS/SSL and HTTPS protocol support
361 - AVOptions API rewritten and documented
362 - most of CODEC_FLAG2_*, some CODEC_FLAG_* and many codec-specific fields in
363 AVCodecContext deprecated. Codec private options should be used instead.
364 - Properly working defaults in libx264 wrapper, support for native presets.
365 - Encrypted OMA files support
366 - Discworld II BMV decoding support
368 - OS X Video Decoder Acceleration (VDA) support
369 - CRI ADX audio format muxer and demuxer
370 - Playstation Portable PMP format demuxer
371 - PCM format support in OMA demuxer
373 - Dxtory capture format decoder
374 - v410 QuickTime uncompressed 4:4:4 10-bit encoder and decoder
376 - Simple segmenting muxer
383 - E-AC-3 audio encoder
384 - ac3enc: add channel coupling support
385 - floating-point sample format support for (E-)AC-3, DCA, AAC, Vorbis decoders
386 - H.264/MPEG frame-level multithreading
387 - av_metadata_* functions renamed to av_dict_* and moved to libavutil
388 - 4:4:4 H.264 decoding support
389 - 10-bit H.264 optimizations for x86
390 - bump libswscale for recently reported ABI break
395 - VP8 frame-level multithreading
396 - NEON optimizations for VP8
397 - removed a lot of deprecated API cruft
398 - FFT and IMDCT optimizations for AVX (Sandy Bridge) processors
400 - SMPTE 302M AES3 audio decoder
401 - ffmpeg no longer quits after the 'q' key is pressed; use 'ctrl+c' instead
402 - 9 bits and 10 bits per sample support in the H.264 decoder
407 - WebM support in Matroska de/muxer
408 - low overhead Ogg muxing
410 - VP8 de/encoding via libvpx
411 - Demuxer for On2's IVF format
412 - Pictor/PC Paint decoder
414 - libfaad2 wrapper removed
415 - DTS-ES extension (XCh) decoding support
417 - RTSP tunneling over HTTP
418 - RTP depacketization of SVQ3
419 - -strict inofficial replaced by -strict unofficial
420 - ffplay -exitonkeydown and -exitonmousedown options added
421 - native GSM / GSM MS decoder
422 - RTP depacketization of QDM2
423 - ANSI/ASCII art playback system
424 - Lego Mindstorms RSO de/muxer
425 - SubRip subtitle file muxer and demuxer
426 - Chinese AVS encoding via libxavs
427 - ffprobe -show_packets option added
428 - RTP packetization of Theora and Vorbis
429 - RTP depacketization of MP4A-LATM
430 - RTP packetization and depacketization of VP8
432 - Apple HTTP Live Streaming demuxer
435 - G.722 ADPCM audio encoder/decoder
438 - frei0r wrapper filter
439 - change crop filter syntax to width:height:x:y
440 - make the crop filter accept parametric expressions
441 - make ffprobe accept AVFormatContext options
444 - Demuxer for Leitch/Harris' VR native stream format (LXF)
445 - RTP depacketization of the X-QT QuickTime format
446 - SAP (Session Announcement Protocol, RFC 2974) muxer and demuxer
448 - ffmpeg -crop* options removed
449 - transpose filter added
450 - ffmpeg -force_key_frames option added
451 - demuxer for receiving raw rtp:// URLs without an SDP description
452 - single stream LATM/LOAS decoder
453 - setpts filter added
454 - Win64 support for optimized x86 assembly functions
455 - MJPEG/AVI1 to JPEG/JFIF bitstream filter
456 - ASS subtitle encoder and decoder
457 - IEC 61937 encapsulation for E-AC-3, TrueHD, DTS-HD (for HDMI passthrough)
458 - overlay filter added
459 - rename aspect filter to setdar, and pixelaspect to setsar
461 - Mobotix .mxg demuxer
462 - frei0r source added
463 - hqdn3d filter added
464 - RTP depacketization of QCELP
466 - gradfun filter added
468 - replace the ocv_smooth filter with a more generic ocv filter
469 - Windows Televison (WTV) demuxer
470 - FFmpeg metadata format muxer and demuxer
471 - SubRip (srt) subtitle decoder
472 - floating-point AC-3 encoder added
474 - ffmpeg -copytb option added
476 - Wing Commander IV movies decoder added
478 - Bink version 'b' audio and video decoder
479 - Bitmap Brothers JV playback system
480 - Apple HTTP Live Streaming protocol handler
481 - sndio support for playback and record
482 - Linux framebuffer input device added
483 - Chronomaster DFA decoder
484 - Mobotix MxPEG decoder
485 - AAC encoding via libvo-aacenc
486 - AMR-WB encoding via libvo-amrwbenc
488 - fieldorder video filter added
493 - PB-frame decoding for H.263
494 - deprecated vhook subsystem removed
495 - deprecated old scaler removed
497 - Alpha channel scaler
499 - RTP packetization of H.263
500 - RTP packetization of AMR
501 - RTP depacketization of Vorbis
502 - CorePNG decoding support
503 - Cook multichannel decoding support
504 - introduced avlanguage helpers in libavformat
505 - 8088flex TMV demuxer and decoder
506 - per-stream language-tags extraction in asfdec
507 - V210 decoder and encoder
508 - remaining GPL parts in AC-3 decoder converted to LGPL
510 - SoX native format muxer and demuxer
511 - AMR-NB decoding/encoding, AMR-WB decoding via OpenCORE libraries
513 - Electronic Arts Madcow decoder
514 - DivX (XSUB) subtitle encoder
515 - nonfree libamr support for AMR-NB/WB decoding/encoding removed
516 - experimental AAC encoder
517 - RTP depacketization of ASF and RTSP from WMS servers
518 - RTMP support in libavformat
519 - noX handling for OPT_BOOL X options
521 - IEC-61937 compatible Muxer
523 - Bluray (PGS) subtitle decoder
524 - LPCM support in MPEG-TS (HDMV RID as found on Blu-ray disks)
526 - Core Audio Format demuxer
528 - MD STUDIO audio demuxer
529 - RF64 support in WAV demuxer
530 - MPEG-4 Audio Lossless Coding (ALS) decoder
531 - -formats option split into -formats, -codecs, -bsfs, and -protocols
533 - CDG demuxer and decoder
535 - Auravision Aura 1 and 2 decoders
536 - Deluxe Paint Animation playback system
538 - Adobe Filmstrip muxer and demuxer
539 - RTP depacketization of H.263
540 - Bink demuxer and audio/video decoders
541 - enable symbol versioning by default for linkers that support it
542 - IFF PBM/ILBM bitmap decoder
545 - RTP depacketization of AMR
551 - Kega Game Video (KGV1) decoder
552 - VorbisComment writing for FLAC, Ogg FLAC and Ogg Speex files
553 - RTP depacketization of Theora
554 - HTTP Digest authentication
555 - RTMP/RTMPT/RTMPS/RTMPE/RTMPTE protocol support via librtmp
556 - Psygnosis YOP demuxer and video decoder
557 - spectral extension support in the E-AC-3 decoder
558 - unsharp video filter
559 - RTP hinting in the mov/3gp/mp4 muxer
560 - Dirac in Ogg demuxing
561 - seek to keyframes in Ogg
562 - 4:2:2 and 4:4:4 Theora decoding
563 - 35% faster VP3/Theora decoding
564 - faster AAC decoding
565 - faster H.264 decoding
566 - RealAudio 1.0 (14.4K) encoder
571 - DV50 AKA DVCPRO50 encoder, decoder, muxer and demuxer
572 - TechSmith Camtasia (TSCC) video decoder
573 - IBM Ultimotion (ULTI) video decoder
574 - Sierra Online audio file demuxer and decoder
575 - Apple QuickDraw (qdrw) video decoder
576 - Creative ADPCM audio decoder (16 bits as well as 8 bits schemes)
577 - Electronic Arts Multimedia (WVE/UV2/etc.) file demuxer
578 - Miro VideoXL (VIXL) video decoder
579 - H.261 video encoder
581 - Nullsoft Video (NSV) file demuxer
582 - Shorten audio decoder
584 - Apple Lossless Audio Codec (ALAC) decoder
585 - Winnov WNV1 video decoder
586 - Autodesk Animator Studio Codec (AASC) decoder
587 - Indeo 2 video decoder
588 - Fraps FPS1 video decoder
589 - Snow video encoder/decoder
590 - Sonic audio encoder/decoder
591 - Vorbis audio decoder
592 - Macromedia ADPCM decoder
593 - Duck TrueMotion 2 video decoder
594 - support for decoding FLX and DTA extensions in FLIC files
595 - H.264 custom quantization matrices support
596 - ffserver fixed, it should now be usable again
598 - Real Cooker audio decoder
599 - TrueSpeech audio decoder
600 - WMA2 audio decoder fixed, now all files should play correctly
601 - RealAudio 14.4 and 28.8 decoders fixed
603 - build system improvements
604 - tabs and trailing whitespace removed from the codebase
605 - CamStudio video decoder
606 - AIFF/AIFF-C audio format, encoding and decoding
607 - ADTS AAC file reading and writing
608 - Creative VOC file reading and writing
609 - American Laser Games multimedia (*.mm) playback system
610 - Zip Motion Blocks Video decoder
611 - improved Theora/VP3 decoder
612 - True Audio (TTA) decoder
613 - AVS demuxer and video decoder
615 - Smacker demuxer and decoder
616 - NuppelVideo/MythTV demuxer and RTjpeg decoder
618 - MPEG-2 intra VLC support
619 - MPEG-2 4:2:2 encoder
620 - Flash Screen Video decoder
622 - Chinese AVS decoder
625 - VC-1/WMV3/WMV9 video decoder
628 - VMware video decoder
631 - WavPack lossless audio decoder
632 - Targa (.TGA) picture decoder
633 - Vorbis audio encoder
634 - Delphine Software .cin demuxer/audio and video decoder
635 - Tiertex .seq demuxer/video decoder
637 - TIFF picture encoder and decoder
638 - GIF picture decoder
639 - Intel Music Coder decoder
640 - Zip Motion Blocks Video encoder
642 - Flash Screen Video encoder
643 - Theora encoding via libtheora
646 - GSM-MS encoder and decoder
648 - DXA demuxer and decoder
650 - Gamecube movie (.THP) playback system
651 - Blackfin optimizations
652 - Interplay C93 demuxer and video decoder
653 - Bethsoft VID demuxer and video decoder
656 - V.Flash PTX decoder
657 - RoQ muxer, RoQ audio encoder
658 - Renderware TXD demuxer and decoder
659 - extern C declarations for C++ removed from headers
660 - sws_flags command line option
664 - OS/2 support removed and restored again
667 - additional SPARC (VIS) optimizations
669 - slice-based parallel H.264 decoding
670 - Monkey's Audio demuxer and decoder
671 - AMV audio and video decoder
673 - H.264 PAFF decoding
674 - Nellymoser ASAO decoder
675 - Beam Software SIFF demuxer and decoder
676 - libvorbis Vorbis decoding removed in favor of native decoder
677 - IntraX8 (J-Frame) subdecoder for WMV2 and VC-1
678 - Ogg (Theora, Vorbis and FLAC) muxer
679 - The "device" muxers and demuxers are now in a new libavdevice library
680 - PC Paintbrush PCX decoder
681 - Sun Rasterfile decoder
682 - TechnoTrend PVA demuxer
683 - Linux Media Labs MPEG-4 (LMLM4) demuxer
684 - AVM2 (Flash 9) SWF muxer
685 - QT variant of IMA ADPCM encoder
687 - iPod/iPhone compatible mp4 muxer
689 - MSN TCP Webcam stream demuxer
690 - RL2 demuxer / decoder
693 - non-recursive Makefiles
695 - MAXIS EA XA (.xa) demuxer / decoder
699 - Electronic Arts CMV decoder
700 - Motion Pixels Video decoder
701 - Motion Pixels MVI demuxer
702 - removed animated GIF decoder/demuxer
703 - D-Cinema audio muxer
704 - Electronic Arts TGV decoder
705 - Apple Lossless Audio Codec (ALAC) encoder
707 - floating point PCM encoder/decoder
709 - DV100 AKA DVCPRO HD decoder and demuxer
710 - E-AC-3 support added to AC-3 decoder
711 - Nellymoser ASAO encoder
712 - ASS and SSA demuxer and muxer
713 - liba52 wrapper removed
714 - SVQ3 watermark decoding support
715 - Speex decoding via libspeex
716 - Electronic Arts TGQ decoder
718 - QCELP / PureVoice decoder
720 - hybrid WavPack support
721 - R3D REDCODE demuxer
722 - ALSA support for playback and record
723 - Electronic Arts TQI decoder
724 - OpenJPEG based JPEG 2000 decoder
725 - NC (NC4600) camera file demuxer
726 - Gopher client support
728 - generic metadata API
733 - DV encoder, DV muxer
734 - Microsoft RLE video decoder
735 - Microsoft Video-1 decoder
736 - Apple Animation (RLE) decoder
737 - Apple Graphics (SMC) decoder
738 - Apple Video (RPZA) decoder
740 - Sega FILM (CPK) file demuxer
741 - Westwood multimedia support (VQA & AUD files)
742 - Id Quake II CIN playback support
744 - FLIC playback support
745 - RealVideo 2.0 (RV20) decoder
746 - Duck TrueMotion v1 (DUCK) video decoder
747 - Sierra VMD demuxer and video decoder
748 - MSZH and ZLIB decoder support
752 - rate distortion optimal cbp support
753 - rate distorted optimal ac prediction for MPEG-4
754 - rate distorted optimal lambda->qp support
755 - AAC encoding with libfaac
756 - Sunplus JPEG codec (SP5X) support
757 - use Lagrange multiplier instead of QP for ratecontrol
758 - Theora/VP3 decoding support
759 - XA and ADX ADPCM codecs
760 - export MPEG-2 active display area / pan scan
761 - Add support for configuring with IBM XLC
762 - floating point AAN DCT
763 - initial support for zygo video (not complete)
765 - new audio/video parser API
767 - av_read_frame() and av_seek_frame() support
768 - missing last frame fixes
769 - seek by mouse in ffplay
770 - noise reduction of DCT coefficients
771 - H.263 OBMC & 4MV support
772 - H.263 alternative inter vlc support
774 - H.263 slice structured mode
775 - interlaced DCT support for MPEG-2 encoding
776 - stuffing to stay above min_bitrate
777 - MB type & QP visualization
778 - frame stepping for ffplay
779 - interlaced motion estimation
780 - alternate scantable support
781 - SVCD scan offset support
784 - quantizer noise shaping
785 - G.726 ADPCM audio codec
787 - multithreaded/SMP motion estimation
788 - multithreaded/SMP encoding for MPEG-1/MPEG-2/MPEG-4/H.263
789 - multithreaded/SMP decoding for MPEG-2
791 - Metrowerks CodeWarrior suppport
792 - H.263+ custom pcf support
793 - nicer output for 'ffmpeg -formats'
795 - SGI image format, encoding and decoding
796 - H.264 loop filter support
797 - H.264 CABAC support
798 - nicer looking arrows for the motion vector visualization
799 - improved VCD support
800 - audio timestamp drift compensation
801 - MPEG-2 YUV 422/444 support
802 - polyphase kaiser windowed sinc and blackman nuttall windowed sinc audio resample
803 - better image scaling
805 - correctly interleave packets during encoding
806 - VIS optimized motion compensation
807 - intra_dc_precision>0 encoding support
808 - support reuse of motion vectors/MB types/field select values of the source video
809 - more accurate deblock filter
811 - many optimizations and bugfixes
812 - FunCom ISS audio file demuxer and according ADPCM decoding
817 - MPEG-2 video encoding (Michael)
818 - Id RoQ playback subsystem (Mike Melanson and Tim Ferguson)
819 - Wing Commander III Movie (.mve) file playback subsystem (Mike Melanson
821 - Xan DPCM audio decoder (Mario Brito)
822 - Interplay MVE playback subsystem (Mike Melanson)
823 - Duck DK3 and DK4 ADPCM audio decoders (Mike Melanson)
828 - RealAudio 1.0 (14_4) and 2.0 (28_8) native decoders. Author unknown, code from mplayerhq
829 (originally from public domain player for Amiga at http://www.honeypot.net/audio)
830 - current version now also compiles with older GCC (Fabrice)
831 - 4X multimedia playback system including 4xm file demuxer (Mike
832 Melanson), and 4X video and audio codecs (Michael)
833 - Creative YUV (CYUV) decoder (Mike Melanson)
834 - FFV1 codec (our very simple lossless intra only codec, compresses much better
835 than HuffYUV) (Michael)
836 - ASV1 (Asus), H.264, Intel indeo3 codecs have been added (various)
837 - tiny PNG encoder and decoder, tiny GIF decoder, PAM decoder (PPM with
838 alpha support), JPEG YUV colorspace support. (Fabrice Bellard)
839 - ffplay has been replaced with a newer version which uses SDL (optionally)
840 for multiplatform support (Fabrice)
841 - Sorenson Version 3 codec (SVQ3) support has been added (decoding only) - donated
843 - AMR format has been added (Johannes Carlsson)
844 - 3GP support has been added (Johannes Carlsson)
845 - VP3 codec has been added (Mike Melanson)
846 - more MPEG-1/2 fixes
847 - better multiplatform support, MS Visual Studio fixes (various)
848 - AltiVec optimizations (Magnus Damn and others)
849 - SH4 processor support has been added (BERO)
850 - new public interfaces (avcodec_get_pix_fmt) (Roman Shaposhnick)
851 - VOB streaming support (Brian Foley)
852 - better MP3 autodetection (Andriy Rysin)
853 - qpel encoding (Michael)
854 - 4mv+b frames encoding finally fixed (Michael)
855 - chroma ME (Michael)
856 - 5 comparison functions for ME (Michael)
857 - B-frame encoding speedup (Michael)
858 - WMV2 codec (unfinished - Michael)
859 - user specified diamond size for EPZS (Michael)
860 - Playstation STR playback subsystem, still experimental (Mike and Michael)
861 - ASV2 codec (Michael)
862 - CLJR decoder (Alex)
864 .. And lots more new enhancements and fixes.
869 - completely new integer only MPEG audio layer 1/2/3 decoder rewritten
871 - Recoded DCT and motion vector search with gcc (no longer depends on nasm)
872 - fix quantization bug in AC3 encoder
873 - added PCM codecs and format. Corrected WAV/AVI/ASF PCM issues
874 - added prototype ffplay program
875 - added GOB header parsing on H.263/H.263+ decoder (Juanjo)
876 - bug fix on MCBPC tables of H.263 (Juanjo)
877 - bug fix on DC coefficients of H.263 (Juanjo)
878 - added Advanced Prediction Mode on H.263/H.263+ decoder (Juanjo)
879 - now we can decode H.263 streams found in QuickTime files (Juanjo)
880 - now we can decode H.263 streams found in VIVO v1 files(Juanjo)
881 - preliminary RTP "friendly" mode for H.263/H.263+ coding. (Juanjo)
882 - added GOB header for H.263/H.263+ coding on RTP mode (Juanjo)
883 - now H.263 picture size is returned on the first decoded frame (Juanjo)
884 - added first regression tests
885 - added MPEG-2 TS demuxer
886 - new demux API for libav
887 - more accurate and faster IDCT (Michael)
888 - faster and entropy-controlled motion search (Michael)
889 - two pass video encoding (Michael)
890 - new video rate control (Michael)
891 - added MSMPEG4V1, MSMPEGV2 and WMV1 support (Michael)
892 - great performance improvement of video encoders and decoders (Michael)
893 - new and faster bit readers and vlc parsers (Michael)
894 - high quality encoding mode: tries all macroblock/VLC types (Michael)
895 - added DV video decoder
896 - preliminary RTP/RTSP support in ffserver and libavformat
897 - H.263+ AIC decoding/encoding support (Juanjo)
898 - VCD MPEG-PS mode (Juanjo)
899 - PSNR stuff (Juanjo)
900 - simple stats output (Juanjo)
901 - 16-bit and 15-bit RGB/BGR/GBR support (Bisqwit)
906 - some header fixes (Zdenek Kabelac <kabi at informatics.muni.cz>)
907 - many MMX optimizations (Nick Kurshev <nickols_k at mail.ru>)
908 - added configure system (actually a small shell script)
909 - added MPEG audio layer 1/2/3 decoding using LGPL'ed mpglib by
910 Michael Hipp (temporary solution - waiting for integer only
912 - fixed VIDIOCSYNC interrupt
913 - added Intel H.263 decoding support ('I263' AVI fourCC)
914 - added Real Video 1.0 decoding (needs further testing)
915 - simplified image formats again. Added PGM format (=grey
916 pgm). Renamed old PGM to PGMYUV.
917 - fixed msmpeg4 slice issues (tell me if you still find problems)
918 - fixed OpenDivX bugs with newer versions (added VOL header decoding)
919 - added support for MPlayer interface
920 - added macroblock skip optimization
921 - added MJPEG decoder
922 - added mmx/mmxext IDCT from libmpeg2
923 - added pgmyuvpipe, ppm, and ppm_pipe formats (original patch by Celer
924 <celer at shell.scrypt.net>)
925 - added pixel format conversion layer (e.g. for MJPEG or PPM)
926 - added deinterlacing option
928 - MPEG-4 vol header fixes (Jonathan Marsden <snmjbm at pacbell.net>)
929 - ARM optimizations (Lionel Ulmer <lionel.ulmer at free.fr>).
930 - Windows porting of file converter
931 - added MJPEG raw format (input/ouput)
932 - added JPEG image format support (input/output)
937 - fixed some std header definitions (Bjorn Lindgren
938 <bjorn.e.lindgren at telia.com>).
939 - added MPEG demuxer (MPEG-1 and 2 compatible).
941 - added prototype RM demuxer
942 - added AC3 decoding (done with libac3 by Aaron Holtzman)
943 - added decoding codec parameter guessing (.e.g. for MPEG, because the
944 header does not include them)
945 - fixed header generation in MPEG-1, AVI and ASF muxer: wmplayer can now
946 play them (only tested video)
947 - fixed H.263 white bug
948 - fixed phase rounding in img resample filter
949 - add MMX code for polyphase img resample filter
950 - added CPU autodetection
951 - added generic title/author/copyright/comment string handling (ASF and RM
953 - added SWF demux to extract MP3 track (not usable yet because no MP3
955 - added fractional frame rate support
956 - codecs are no longer searched by read_header() (should fix ffserver
962 - BGR24 patch (initial patch by Jeroen Vreeken <pe1rxq at amsat.org>)
963 - fixed raw yuv output
964 - added motion rounding support in MPEG-4
965 - fixed motion bug rounding in MSMPEG4
966 - added B-frame handling in video core
967 - added full MPEG-1 decoding support
968 - added partial (frame only) MPEG-2 support
969 - changed the FOURCC code for H.263 to "U263" to be able to see the
970 +AVI/H.263 file with the UB Video H.263+ decoder. MPlayer works with
971 this +codec ;) (JuanJo).
972 - Halfpel motion estimation after MB type selection (JuanJo)
973 - added pgm and .Y.U.V output format
974 - suppressed 'img:' protocol. Simply use: /tmp/test%d.[pgm|Y] as input or
976 - added pgmpipe I/O format (original patch from Martin Aumueller
977 <lists at reserv.at>, but changed completely since we use a format
978 instead of a protocol)
983 - added H.263/MPEG-4/MSMPEG4 decoding support. MPEG-4 decoding support
984 (for OpenDivX) is almost complete: 8x8 MVs and rounding are
985 missing. MSMPEG4 support is complete.
986 - added prototype MPEG-1 decoder. Only I- and P-frames handled yet (it
987 can decode ffmpeg MPEGs :-)).
988 - added libavcodec API documentation (see apiexample.c).
989 - fixed image polyphase bug (the bottom of some images could be
991 - added support for non clipped motion vectors (decoding only)
992 and image sizes non-multiple of 16
993 - added support for AC prediction (decoding only)
994 - added file overwrite confirmation (can be disabled with -y)
995 - added custom size picture to H.263 using H.263+ (Juanjo)
1000 - added MSMPEG4 (aka DivX) compatible encoder. Changed default codec
1001 of AVI and ASF to DIV3.
1002 - added -me option to set motion estimation method
1003 (default=log). suppressed redundant -hq option.
1004 - added options -acodec and -vcodec to force a given codec (useful for
1007 - improved dct_quantize speed
1008 - factorized some motion estimation code
1013 - removing grab code from ffserver and moved it to ffmpeg. Added
1014 multistream support to ffmpeg.
1015 - added timeshifting support for live feeds (option ?date=xxx in the
1017 - added high quality image resize code with polyphase filter (need
1018 mmx/see optimization). Enable multiple image size support in ffserver.
1019 - added multi live feed support in ffserver
1020 - suppressed master feature from ffserver (it should be done with an
1021 external program which opens the .ffm url and writes it to another
1023 - added preliminary support for video stream parsing (WAV and AVI half
1024 done). Added proper support for audio/video file conversion in
1026 - added preliminary support for video file sending from ffserver
1027 - redesigning I/O subsystem: now using URL based input and output
1029 - added WAV format support
1030 - added "tty user interface" to ffmpeg to stop grabbing gracefully
1031 - added MMX/SSE optimizations to SAD (Sums of Absolutes Differences)
1032 (Juan J. Sierralta P. a.k.a. "Juanjo" <juanjo at atmlab.utfsm.cl>)
1033 - added MMX DCT from mpeg2_movie 1.5 (Juanjo)
1034 - added new motion estimation algorithms, log and phods (Juanjo)
1035 - changed directories: libav for format handling, libavcodec for
1041 - added stereo in MPEG audio encoder
1046 - added 'high quality' mode which use motion vectors. It can be used in
1047 real time at low resolution.
1048 - fixed rounding problems which caused quality problems at high
1049 bitrates and large GOP size
1052 version 0.3.2: small fixes
1058 version 0.3.1: added avi/divx support
1061 - added MPEG-4 codec compatible with OpenDivX. It is based on the H.263 codec
1062 - added sound for flash format (not tested)
1065 version 0.3: initial public release