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
20 - Intel QSV-accelerated MJPEG encoding
21 - NVIDIA CUVID-accelerated H.264 and HEVC decoding
22 - Intel QSV-accelerated overlay filter
23 - AV1 Support through libaom
24 - Haivision SRT protocol via libsrt
25 - Dropped support for building for Windows XP. The minimum supported Windows
26 version is Windows Vista.
27 - support mbedTLS-based TLS
28 - AV1 Support through libdav1d
32 - aliases and defaults for Ogg subtypes (opus, spx)
33 - HEVC/H.265 RTP payload format (draft v6) packetizer and depacketizer
34 - avplay now exits by default at the end of playback
35 - XCB-based screen-grabber
36 - creating DASH compatible fragmented MP4, MPEG-DASH segmenting muxer
37 - H.261 RTP payload format (RFC 4587) depacketizer and experimental packetizer
40 - OpenH264 encoder wrapper
41 - Support DNx100 (960x720@8)
42 - Direct3D11-accelerated decoding
43 - DXVA2-accelerated HEVC decoding
44 - AAC ELD 480 decoding
45 - Intel QSV-accelerated H.264 decoding
46 - DSS SP decoder and DSS demuxer
47 - RTP depacketizer for AC3 payload format (RFC 4184)
48 - RTP depacketizer for loss tolerant payload format for MP3 audio (RFC 5219)
49 - RTP depacketizer for DV (RFC 6469)
51 - RTP depacketization of T.140 text (RFC 4103)
52 - VP9 RTP payload format (draft 0) experimental depacketizer
54 - DTS lossless extension (XLL) decoding (not lossless, disabled by default)
55 - Intel QSV-accelerated H.264 encoding
56 - MMAL-accelerated H.264 decoding
57 - DTS decoding through libdcadec
58 - Canopus HQ/HQA decoder
59 - Automatically rotate videos based on metadata in avconv
60 - improved Quickdraw compatibility
61 - NVIDIA NVENC-accelerated H.264 and HEVC encoding support
62 - Multipart JPEG demuxer
63 - Support the extended vp9 profiles in the libvpx wrapper
64 - Hap decoder and encoder
65 - DirectDraw Surface image/texture decoder
66 - rewritten ASF demuxer
67 - Go2Meeting decoding support
68 - Intel QSV-accelerated MPEG-2 video and HEVC encoding
69 - bitstream filter for converting HEVC from MP4 to Annex B
70 - Intel QSV-accelerated MPEG-2 video and HEVC decoding
71 - Support DNx100 (1440x1080@8)
73 - Screenpresso SPV1 decoding
74 - zero-copy Intel QSV transcoding in avconv
75 - libkvazaar HEVC encoder
76 - innoHeim/Rsupport Screen Capture Codec decoder
77 - support encoding 16-bit RLE SGI images
78 - support Apple AVFoundation video capture
79 - G.723.1 muxer and encoder
81 - VAAPI-accelerated format conversion and scaling
82 - libnpp/CUDA-accelerated format conversion and scaling
83 - VAAPI-accelerate H.264/HEVC/MJPEG encoding
84 - Generic OpenMAX IL encoder with support for Raspberry Pi
85 - MMAL-accelerated MPEG-2 and VC-1 decoding
88 - Duck TrueMotion 2.0 Real Time decoder
89 - Intel QSV video scaling and deinterlacing filter
90 - Support MOV with multiple sample description tables
91 - OpenH264 decoder wrapper
92 - Removed the legacy X11 screen grabber, use XCB instead
93 - HDCD decoding filter through libhdcd
98 - shuffleplanes filter
99 - replaygain data export
100 - Alias PIX image encoder and decoder
101 - BRender PIX image decoder
102 - Amazing Studio PAF playback support
104 - BMP standalone parser
105 - OpenEXR image decoder
106 - support encoding and decoding 4-channel SGI images
107 - support decoding 16-bit RLE SGI images
109 - LucasArts SMUSH SANM video decoder
110 - LucasArts SMUSH VIMA audio decoder (ADPCM)
111 - LucasArts SMUSH demuxer
112 - MP2 encoding via TwoLAME
114 - Silicon Graphics RLE 8-bit video decoder
115 - Silicon Graphics Motion Video Compressor 1 & 2 decoder
116 - Silicon Graphics Movie demuxer
117 - On2 AVC (Audio for Video) decoder
118 - support for decoding through DXVA2 in avconv
119 - libbs2b-based stereo-to-binaural audio filter
120 - native Opus decoder
121 - display matrix export and rotation API
122 - drop avserver, it was unmaintained for years and largely broken
124 - request Icecast metadata by default
125 - support for using metadata in stream specifiers in avtools
126 - Matroska 3D support
131 - support ID3v2 tags in ASF files
132 - reference-counting for AVFrame and AVPacket data
133 - avconv now fails when input options are used for output file
135 - avconv options -filter_script and -filter_complex_script, which allow a
136 filtergraph description to be read from a file
137 - uniform options syntax across all filters
140 - asetpts filter (same as setpts, but for audio)
141 - trim and atrim filters
142 - avconv -t and -ss (output-only) options are now sample-accurate when
144 - Matroska muxer can now put the index at the beginning of the file.
145 - avconv -deinterlace option removed, the yadif filter should be used instead
146 - Apple Intermediate Codec decoder
147 - Escape 130 video decoder
148 - support for slice multithreading in libavfilter
149 - VC-1 interlaced B-frame support
150 - support for WavPack muxing (raw and in Matroska)
152 - WavPack encoding through libwavpack
153 - Added the -n parameter to avconv
155 - when transcoding with avconv (i.e. not streamcopying), -ss is now accurate
156 even when used as an input option. Previous behavior can be restored with
157 the -noaccurate_seek option.
158 - avconv -t option can now be used for inputs, to limit the duration of
159 data read from an input file
160 - Voxware MetaSound decoder
162 - Error Resilient AAC syntax (ER AAC LC) decoding
163 - Low Delay AAC (ER AAC LD) decoding
164 - mux chapters in ASF files
165 - Opus in Ogg demuxing
166 - Enhanced Low Delay AAC (ER AAC ELD) decoding (no LD SBR support)
168 - HNM version 4 demuxer and video decoder
170 - raw HEVC, HEVC in MOV/MP4, HEVC in Matroska, HEVC in MPEG-TS demuxing
171 - remove avplay -vismv option, which has not worked for a long time
173 - setsar/setdar filters now support variables in ratio expressions
174 - dar variable in the scale filter now returns the actual DAR (i.e. a * sar)
176 - support for decoding through VDPAU in avconv (the -hwaccel option)
177 - remove mp3_header_(de)compress bitstream filters
178 - stereoscopic 3d metadata handling
179 - png standalone parser
180 - WebP encoding via libwebp
183 - Mirillis FIC video decoder
185 - compand audio filter
189 - av_basename and av_dirname
190 - adobe and limelight publisher authentication in RTMP
191 - VDPAU hardware acceleration through normal hwaccel
196 - ashowinfo audio filter
197 - 24-bit FLAC encoding
198 - audio volume filter
199 - deprecated the avconv -vol option. the volume filter is to be used instead.
200 - multi-channel ALAC encoding up to 7.1
201 - TAK demuxer, parser, and decoder
202 - adaptive frame-level multithreading for H.264
206 - metadata (INFO tag) support in WAV muxer
207 - support for building DLLs using MSVC
208 - remove avserver daemon mode
209 - support building on the Plan 9 operating system
210 - ffv1: support version 1.3
215 - XWD encoder and decoder
216 - Support for fragmentation in the mov/mp4 muxer
217 - ISMV (Smooth Streaming) muxer
218 - CDXL demuxer and decoder
219 - Apple ProRes encoder
220 - Sun Rasterfile Encoder
222 - ID3v2 attached pictures reading and writing
223 - WMA Lossless decoder
225 - RealAudio Lossless decoder
227 - drop support for avconv without libavfilter
228 - add libavresample audio conversion library
229 - audio filters support in libavfilter and avconv
233 - avprobe output is now standard INI or JSON. The old format can still
234 be used with -of old.
235 - Indeo Audio decoder
236 - channelsplit audio filter
237 - RTMPT protocol support
238 - iLBC encoding/decoding via libilbc
239 - Microsoft Screen 1 decoder
241 - audio channel mapping filter
242 - Microsoft ATC Screen decoder
244 - TechSmith Screen Codec 2 decoder
245 - AAC encoding via libfdk-aac
246 - Microsoft Expression Encoder Screen decoder
247 - RTMPS protocol support
248 - RTMPTS protocol support
249 - JPEG 2000 encoding support through OpenJPEG
250 - G.723.1 demuxer and decoder
251 - RTMPE protocol support
252 - RTMPTE protocol support
253 - Canopus Lossless Codec decoder
254 - avconv -shortest option is now per-output file,
255 -pass and -passlogfile are now per-output stream
257 - Microsoft Screen 2 decoder
258 - RTP depacketization of JPEG
259 - Smooth Streaming live segmenter muxer
260 - RTP packetization of JPEG
261 - Opus decoder and encoder using libopus
262 - remove -same_quant, it hasn't worked for years
263 - support for building with MSVC
274 - Automatic thread count based on detection number of (available) CPU cores
275 - Deprecate libpostproc. If desired, the switch --enable-postproc will
276 enable it but it may be removed in a later Libav release.
277 - rv34: frame-level multi-threading
278 - optimized iMDCT transform on x86 using SSE for for mpegaudiodec
284 - Flash Screen Video 2 decoder
285 - ffplay/ffprobe/ffserver renamed to avplay/avprobe/avserver
286 - ffmpeg deprecated, added avconv, which is almost the same for now, except
287 for a few incompatible changes in the options, which will hopefully make them
288 easier to use. The changes are:
289 * The options placement is now strictly enforced! While in theory the
290 options for ffmpeg should be given in [input options] -i INPUT [output
291 options] OUTPUT order, in practice it was possible to give output options
292 before the -i and it mostly worked. Except when it didn't - the behavior was
293 a bit inconsistent. In avconv, it is not possible to mix input and output
294 options. All non-global options are reset after an input or output filename.
295 * All per-file options are now truly per-file - they apply only to the next
296 input or output file and specifying different values for different files
297 will now work properly (notably -ss and -t options).
298 * All per-stream options are now truly per-stream - it is possible to
299 specify which stream(s) should a given option apply to. See the Stream
300 specifiers section in the avconv manual for details.
301 * In ffmpeg some options (like -newvideo/-newaudio/...) are irregular in the
302 sense that they're specified after the output filename instead of before,
303 like all other options. In avconv this irregularity is removed, all options
304 apply to the next input or output file.
305 * -newvideo/-newaudio/-newsubtitle options were removed. Not only were they
306 irregular and highly confusing, they were also redundant. In avconv the -map
307 option will create new streams in the output file and map input streams to
308 them. E.g. avconv -i INPUT -map 0 OUTPUT will create an output stream for
309 each stream in the first input file.
310 * The -map option now has slightly different and more powerful syntax:
311 + Colons (':') are used to separate file index/stream type/stream index
312 instead of dots. Comma (',') is used to separate the sync stream instead
313 of colon.. This is done for consistency with other options.
314 + It's possible to specify stream type. E.g. -map 0:a:2 creates an
315 output stream from the third input audio stream.
316 + Omitting the stream index now maps all the streams of the given type,
317 not just the first. E.g. -map 0:s creates output streams for all the
318 subtitle streams in the first input file.
319 + Since -map can now match multiple streams, negative mappings were
320 introduced. Negative mappings disable some streams from an already
321 defined map. E.g. '-map 0 -map -0:a:1' means 'create output streams for
322 all the stream in the first input file, except for the second audio
324 * There is a new option -c (or -codec) for choosing the decoder/encoder to
325 use, which allows to precisely specify target stream(s) consistently with
326 other options. E.g. -c:v lib264 sets the codec for all video streams, -c:a:0
327 libvorbis sets the codec for the first audio stream and -c copy copies all
328 the streams without reencoding. Old -vcodec/-acodec/-scodec options are now
330 * It is now possible to precisely specify which stream should an AVOption
331 apply to. E.g. -b:v:0 2M sets the bitrate for the first video stream, while
332 -b:a 128k sets the bitrate for all audio streams. Note that the old -ab 128k
333 syntax is deprecated and will stop working soon.
334 * -map_chapters now takes only an input file index and applies to the next
335 output file. This is consistent with how all the other options work.
336 * -map_metadata now takes only an input metadata specifier and applies to
337 the next output file. Output metadata specifier is now part of the option
338 name, similarly to the AVOptions/map/codec feature above.
339 * -metadata can now be used to set metadata on streams and chapters, e.g.
340 -metadata:s:1 language=eng sets the language of the first stream to 'eng'.
341 This made -vlang/-alang/-slang options redundant, so they were removed.
342 * -qscale option now uses stream specifiers and applies to all streams, not
343 just video. I.e. plain -qscale number would now apply to all streams. To get
344 the old behavior, use -qscale:v. Also there is now a shortcut -q for -qscale
345 and -aq is now an alias for -q:a.
346 * -vbsf/-absf/-sbsf options were removed and replaced by a -bsf option which
347 uses stream specifiers. Use -bsf:v/a/s instead of the old options.
348 * -itsscale option now uses stream specifiers, so its argument is only the
350 * -intra option was removed, use -g 0 for the same effect.
351 * -psnr option was removed, use -flags +psnr for the same effect.
352 * -vf option is now an alias to the new -filter option, which uses stream specifiers.
353 * -vframes/-aframes/-dframes options are now aliases to the new -frames option.
354 * -vtag/-atag/-stag options are now aliases to the new -tag option.
356 - Windows Media Image decoder
360 - libcdio-paranoia input device for audio CD grabbing
362 - Apple ProRes decoder
363 - CELT in Ogg demuxing
364 - VC-1 interlaced decoding
365 - lut, lutrgb, and lutyuv filters
368 - Speex encoding via libspeex
369 - 4:2:2 H.264 decoding support
370 - 4:2:2 and 4:4:4 H.264 encoding with libx264
371 - Pulseaudio input device
372 - replacement Indeo 3 decoder
373 - TLS/SSL and HTTPS protocol support
374 - AVOptions API rewritten and documented
375 - most of CODEC_FLAG2_*, some CODEC_FLAG_* and many codec-specific fields in
376 AVCodecContext deprecated. Codec private options should be used instead.
377 - Properly working defaults in libx264 wrapper, support for native presets.
378 - Encrypted OMA files support
379 - Discworld II BMV decoding support
381 - OS X Video Decoder Acceleration (VDA) support
382 - CRI ADX audio format muxer and demuxer
383 - Playstation Portable PMP format demuxer
384 - PCM format support in OMA demuxer
386 - Dxtory capture format decoder
387 - v410 QuickTime uncompressed 4:4:4 10-bit encoder and decoder
389 - Simple segmenting muxer
396 - E-AC-3 audio encoder
397 - ac3enc: add channel coupling support
398 - floating-point sample format support for (E-)AC-3, DCA, AAC, Vorbis decoders
399 - H.264/MPEG frame-level multithreading
400 - av_metadata_* functions renamed to av_dict_* and moved to libavutil
401 - 4:4:4 H.264 decoding support
402 - 10-bit H.264 optimizations for x86
403 - bump libswscale for recently reported ABI break
408 - VP8 frame-level multithreading
409 - NEON optimizations for VP8
410 - removed a lot of deprecated API cruft
411 - FFT and IMDCT optimizations for AVX (Sandy Bridge) processors
413 - SMPTE 302M AES3 audio decoder
414 - ffmpeg no longer quits after the 'q' key is pressed; use 'ctrl+c' instead
415 - 9 bits and 10 bits per sample support in the H.264 decoder
420 - WebM support in Matroska de/muxer
421 - low overhead Ogg muxing
423 - VP8 de/encoding via libvpx
424 - Demuxer for On2's IVF format
425 - Pictor/PC Paint decoder
427 - libfaad2 wrapper removed
428 - DTS-ES extension (XCh) decoding support
430 - RTSP tunneling over HTTP
431 - RTP depacketization of SVQ3
432 - -strict inofficial replaced by -strict unofficial
433 - ffplay -exitonkeydown and -exitonmousedown options added
434 - native GSM / GSM MS decoder
435 - RTP depacketization of QDM2
436 - ANSI/ASCII art playback system
437 - Lego Mindstorms RSO de/muxer
438 - SubRip subtitle file muxer and demuxer
439 - Chinese AVS encoding via libxavs
440 - ffprobe -show_packets option added
441 - RTP packetization of Theora and Vorbis
442 - RTP depacketization of MP4A-LATM
443 - RTP packetization and depacketization of VP8
445 - Apple HTTP Live Streaming demuxer
448 - G.722 ADPCM audio encoder/decoder
451 - frei0r wrapper filter
452 - change crop filter syntax to width:height:x:y
453 - make the crop filter accept parametric expressions
454 - make ffprobe accept AVFormatContext options
457 - Demuxer for Leitch/Harris' VR native stream format (LXF)
458 - RTP depacketization of the X-QT QuickTime format
459 - SAP (Session Announcement Protocol, RFC 2974) muxer and demuxer
461 - ffmpeg -crop* options removed
462 - transpose filter added
463 - ffmpeg -force_key_frames option added
464 - demuxer for receiving raw rtp:// URLs without an SDP description
465 - single stream LATM/LOAS decoder
466 - setpts filter added
467 - Win64 support for optimized x86 assembly functions
468 - MJPEG/AVI1 to JPEG/JFIF bitstream filter
469 - ASS subtitle encoder and decoder
470 - IEC 61937 encapsulation for E-AC-3, TrueHD, DTS-HD (for HDMI passthrough)
471 - overlay filter added
472 - rename aspect filter to setdar, and pixelaspect to setsar
474 - Mobotix .mxg demuxer
475 - frei0r source added
476 - hqdn3d filter added
477 - RTP depacketization of QCELP
479 - gradfun filter added
481 - replace the ocv_smooth filter with a more generic ocv filter
482 - Windows Televison (WTV) demuxer
483 - FFmpeg metadata format muxer and demuxer
484 - SubRip (srt) subtitle decoder
485 - floating-point AC-3 encoder added
487 - ffmpeg -copytb option added
489 - Wing Commander IV movies decoder added
491 - Bink version 'b' audio and video decoder
492 - Bitmap Brothers JV playback system
493 - Apple HTTP Live Streaming protocol handler
494 - sndio support for playback and record
495 - Linux framebuffer input device added
496 - Chronomaster DFA decoder
497 - Mobotix MxPEG decoder
498 - AAC encoding via libvo-aacenc
499 - AMR-WB encoding via libvo-amrwbenc
501 - fieldorder video filter added
506 - PB-frame decoding for H.263
507 - deprecated vhook subsystem removed
508 - deprecated old scaler removed
510 - Alpha channel scaler
512 - RTP packetization of H.263
513 - RTP packetization of AMR
514 - RTP depacketization of Vorbis
515 - CorePNG decoding support
516 - Cook multichannel decoding support
517 - introduced avlanguage helpers in libavformat
518 - 8088flex TMV demuxer and decoder
519 - per-stream language-tags extraction in asfdec
520 - V210 decoder and encoder
521 - remaining GPL parts in AC-3 decoder converted to LGPL
523 - SoX native format muxer and demuxer
524 - AMR-NB decoding/encoding, AMR-WB decoding via OpenCORE libraries
526 - Electronic Arts Madcow decoder
527 - DivX (XSUB) subtitle encoder
528 - nonfree libamr support for AMR-NB/WB decoding/encoding removed
529 - experimental AAC encoder
530 - RTP depacketization of ASF and RTSP from WMS servers
531 - RTMP support in libavformat
532 - noX handling for OPT_BOOL X options
534 - IEC-61937 compatible Muxer
536 - Bluray (PGS) subtitle decoder
537 - LPCM support in MPEG-TS (HDMV RID as found on Blu-ray disks)
539 - Core Audio Format demuxer
541 - MD STUDIO audio demuxer
542 - RF64 support in WAV demuxer
543 - MPEG-4 Audio Lossless Coding (ALS) decoder
544 - -formats option split into -formats, -codecs, -bsfs, and -protocols
546 - CDG demuxer and decoder
548 - Auravision Aura 1 and 2 decoders
549 - Deluxe Paint Animation playback system
551 - Adobe Filmstrip muxer and demuxer
552 - RTP depacketization of H.263
553 - Bink demuxer and audio/video decoders
554 - enable symbol versioning by default for linkers that support it
555 - IFF PBM/ILBM bitmap decoder
558 - RTP depacketization of AMR
564 - Kega Game Video (KGV1) decoder
565 - VorbisComment writing for FLAC, Ogg FLAC and Ogg Speex files
566 - RTP depacketization of Theora
567 - HTTP Digest authentication
568 - RTMP/RTMPT/RTMPS/RTMPE/RTMPTE protocol support via librtmp
569 - Psygnosis YOP demuxer and video decoder
570 - spectral extension support in the E-AC-3 decoder
571 - unsharp video filter
572 - RTP hinting in the mov/3gp/mp4 muxer
573 - Dirac in Ogg demuxing
574 - seek to keyframes in Ogg
575 - 4:2:2 and 4:4:4 Theora decoding
576 - 35% faster VP3/Theora decoding
577 - faster AAC decoding
578 - faster H.264 decoding
579 - RealAudio 1.0 (14.4K) encoder
584 - DV50 AKA DVCPRO50 encoder, decoder, muxer and demuxer
585 - TechSmith Camtasia (TSCC) video decoder
586 - IBM Ultimotion (ULTI) video decoder
587 - Sierra Online audio file demuxer and decoder
588 - Apple QuickDraw (qdrw) video decoder
589 - Creative ADPCM audio decoder (16 bits as well as 8 bits schemes)
590 - Electronic Arts Multimedia (WVE/UV2/etc.) file demuxer
591 - Miro VideoXL (VIXL) video decoder
592 - H.261 video encoder
594 - Nullsoft Video (NSV) file demuxer
595 - Shorten audio decoder
597 - Apple Lossless Audio Codec (ALAC) decoder
598 - Winnov WNV1 video decoder
599 - Autodesk Animator Studio Codec (AASC) decoder
600 - Indeo 2 video decoder
601 - Fraps FPS1 video decoder
602 - Snow video encoder/decoder
603 - Sonic audio encoder/decoder
604 - Vorbis audio decoder
605 - Macromedia ADPCM decoder
606 - Duck TrueMotion 2 video decoder
607 - support for decoding FLX and DTA extensions in FLIC files
608 - H.264 custom quantization matrices support
609 - ffserver fixed, it should now be usable again
611 - Real Cooker audio decoder
612 - TrueSpeech audio decoder
613 - WMA2 audio decoder fixed, now all files should play correctly
614 - RealAudio 14.4 and 28.8 decoders fixed
616 - build system improvements
617 - tabs and trailing whitespace removed from the codebase
618 - CamStudio video decoder
619 - AIFF/AIFF-C audio format, encoding and decoding
620 - ADTS AAC file reading and writing
621 - Creative VOC file reading and writing
622 - American Laser Games multimedia (*.mm) playback system
623 - Zip Motion Blocks Video decoder
624 - improved Theora/VP3 decoder
625 - True Audio (TTA) decoder
626 - AVS demuxer and video decoder
628 - Smacker demuxer and decoder
629 - NuppelVideo/MythTV demuxer and RTjpeg decoder
631 - MPEG-2 intra VLC support
632 - MPEG-2 4:2:2 encoder
633 - Flash Screen Video decoder
635 - Chinese AVS decoder
638 - VC-1/WMV3/WMV9 video decoder
641 - VMware video decoder
644 - WavPack lossless audio decoder
645 - Targa (.TGA) picture decoder
646 - Vorbis audio encoder
647 - Delphine Software .cin demuxer/audio and video decoder
648 - Tiertex .seq demuxer/video decoder
650 - TIFF picture encoder and decoder
651 - GIF picture decoder
652 - Intel Music Coder decoder
653 - Zip Motion Blocks Video encoder
655 - Flash Screen Video encoder
656 - Theora encoding via libtheora
659 - GSM-MS encoder and decoder
661 - DXA demuxer and decoder
663 - Gamecube movie (.THP) playback system
664 - Blackfin optimizations
665 - Interplay C93 demuxer and video decoder
666 - Bethsoft VID demuxer and video decoder
669 - V.Flash PTX decoder
670 - RoQ muxer, RoQ audio encoder
671 - Renderware TXD demuxer and decoder
672 - extern C declarations for C++ removed from headers
673 - sws_flags command line option
677 - OS/2 support removed and restored again
680 - additional SPARC (VIS) optimizations
682 - slice-based parallel H.264 decoding
683 - Monkey's Audio demuxer and decoder
684 - AMV audio and video decoder
686 - H.264 PAFF decoding
687 - Nellymoser ASAO decoder
688 - Beam Software SIFF demuxer and decoder
689 - libvorbis Vorbis decoding removed in favor of native decoder
690 - IntraX8 (J-Frame) subdecoder for WMV2 and VC-1
691 - Ogg (Theora, Vorbis and FLAC) muxer
692 - The "device" muxers and demuxers are now in a new libavdevice library
693 - PC Paintbrush PCX decoder
694 - Sun Rasterfile decoder
695 - TechnoTrend PVA demuxer
696 - Linux Media Labs MPEG-4 (LMLM4) demuxer
697 - AVM2 (Flash 9) SWF muxer
698 - QT variant of IMA ADPCM encoder
700 - iPod/iPhone compatible mp4 muxer
702 - MSN TCP Webcam stream demuxer
703 - RL2 demuxer / decoder
706 - non-recursive Makefiles
708 - MAXIS EA XA (.xa) demuxer / decoder
712 - Electronic Arts CMV decoder
713 - Motion Pixels Video decoder
714 - Motion Pixels MVI demuxer
715 - removed animated GIF decoder/demuxer
716 - D-Cinema audio muxer
717 - Electronic Arts TGV decoder
718 - Apple Lossless Audio Codec (ALAC) encoder
720 - floating point PCM encoder/decoder
722 - DV100 AKA DVCPRO HD decoder and demuxer
723 - E-AC-3 support added to AC-3 decoder
724 - Nellymoser ASAO encoder
725 - ASS and SSA demuxer and muxer
726 - liba52 wrapper removed
727 - SVQ3 watermark decoding support
728 - Speex decoding via libspeex
729 - Electronic Arts TGQ decoder
731 - QCELP / PureVoice decoder
733 - hybrid WavPack support
734 - R3D REDCODE demuxer
735 - ALSA support for playback and record
736 - Electronic Arts TQI decoder
737 - OpenJPEG based JPEG 2000 decoder
738 - NC (NC4600) camera file demuxer
739 - Gopher client support
741 - generic metadata API
746 - DV encoder, DV muxer
747 - Microsoft RLE video decoder
748 - Microsoft Video-1 decoder
749 - Apple Animation (RLE) decoder
750 - Apple Graphics (SMC) decoder
751 - Apple Video (RPZA) decoder
753 - Sega FILM (CPK) file demuxer
754 - Westwood multimedia support (VQA & AUD files)
755 - Id Quake II CIN playback support
757 - FLIC playback support
758 - RealVideo 2.0 (RV20) decoder
759 - Duck TrueMotion v1 (DUCK) video decoder
760 - Sierra VMD demuxer and video decoder
761 - MSZH and ZLIB decoder support
765 - rate distortion optimal cbp support
766 - rate distorted optimal ac prediction for MPEG-4
767 - rate distorted optimal lambda->qp support
768 - AAC encoding with libfaac
769 - Sunplus JPEG codec (SP5X) support
770 - use Lagrange multiplier instead of QP for ratecontrol
771 - Theora/VP3 decoding support
772 - XA and ADX ADPCM codecs
773 - export MPEG-2 active display area / pan scan
774 - Add support for configuring with IBM XLC
775 - floating point AAN DCT
776 - initial support for zygo video (not complete)
778 - new audio/video parser API
780 - av_read_frame() and av_seek_frame() support
781 - missing last frame fixes
782 - seek by mouse in ffplay
783 - noise reduction of DCT coefficients
784 - H.263 OBMC & 4MV support
785 - H.263 alternative inter vlc support
787 - H.263 slice structured mode
788 - interlaced DCT support for MPEG-2 encoding
789 - stuffing to stay above min_bitrate
790 - MB type & QP visualization
791 - frame stepping for ffplay
792 - interlaced motion estimation
793 - alternate scantable support
794 - SVCD scan offset support
797 - quantizer noise shaping
798 - G.726 ADPCM audio codec
800 - multithreaded/SMP motion estimation
801 - multithreaded/SMP encoding for MPEG-1/MPEG-2/MPEG-4/H.263
802 - multithreaded/SMP decoding for MPEG-2
804 - Metrowerks CodeWarrior suppport
805 - H.263+ custom pcf support
806 - nicer output for 'ffmpeg -formats'
808 - SGI image format, encoding and decoding
809 - H.264 loop filter support
810 - H.264 CABAC support
811 - nicer looking arrows for the motion vector visualization
812 - improved VCD support
813 - audio timestamp drift compensation
814 - MPEG-2 YUV 422/444 support
815 - polyphase kaiser windowed sinc and blackman nuttall windowed sinc audio resample
816 - better image scaling
818 - correctly interleave packets during encoding
819 - VIS optimized motion compensation
820 - intra_dc_precision>0 encoding support
821 - support reuse of motion vectors/MB types/field select values of the source video
822 - more accurate deblock filter
824 - many optimizations and bugfixes
825 - FunCom ISS audio file demuxer and according ADPCM decoding
830 - MPEG-2 video encoding (Michael)
831 - Id RoQ playback subsystem (Mike Melanson and Tim Ferguson)
832 - Wing Commander III Movie (.mve) file playback subsystem (Mike Melanson
834 - Xan DPCM audio decoder (Mario Brito)
835 - Interplay MVE playback subsystem (Mike Melanson)
836 - Duck DK3 and DK4 ADPCM audio decoders (Mike Melanson)
841 - RealAudio 1.0 (14_4) and 2.0 (28_8) native decoders. Author unknown, code from mplayerhq
842 (originally from public domain player for Amiga at http://www.honeypot.net/audio)
843 - current version now also compiles with older GCC (Fabrice)
844 - 4X multimedia playback system including 4xm file demuxer (Mike
845 Melanson), and 4X video and audio codecs (Michael)
846 - Creative YUV (CYUV) decoder (Mike Melanson)
847 - FFV1 codec (our very simple lossless intra only codec, compresses much better
848 than HuffYUV) (Michael)
849 - ASV1 (Asus), H.264, Intel indeo3 codecs have been added (various)
850 - tiny PNG encoder and decoder, tiny GIF decoder, PAM decoder (PPM with
851 alpha support), JPEG YUV colorspace support. (Fabrice Bellard)
852 - ffplay has been replaced with a newer version which uses SDL (optionally)
853 for multiplatform support (Fabrice)
854 - Sorenson Version 3 codec (SVQ3) support has been added (decoding only) - donated
856 - AMR format has been added (Johannes Carlsson)
857 - 3GP support has been added (Johannes Carlsson)
858 - VP3 codec has been added (Mike Melanson)
859 - more MPEG-1/2 fixes
860 - better multiplatform support, MS Visual Studio fixes (various)
861 - AltiVec optimizations (Magnus Damn and others)
862 - SH4 processor support has been added (BERO)
863 - new public interfaces (avcodec_get_pix_fmt) (Roman Shaposhnick)
864 - VOB streaming support (Brian Foley)
865 - better MP3 autodetection (Andriy Rysin)
866 - qpel encoding (Michael)
867 - 4mv+b frames encoding finally fixed (Michael)
868 - chroma ME (Michael)
869 - 5 comparison functions for ME (Michael)
870 - B-frame encoding speedup (Michael)
871 - WMV2 codec (unfinished - Michael)
872 - user specified diamond size for EPZS (Michael)
873 - Playstation STR playback subsystem, still experimental (Mike and Michael)
874 - ASV2 codec (Michael)
875 - CLJR decoder (Alex)
877 .. And lots more new enhancements and fixes.
882 - completely new integer only MPEG audio layer 1/2/3 decoder rewritten
884 - Recoded DCT and motion vector search with gcc (no longer depends on nasm)
885 - fix quantization bug in AC3 encoder
886 - added PCM codecs and format. Corrected WAV/AVI/ASF PCM issues
887 - added prototype ffplay program
888 - added GOB header parsing on H.263/H.263+ decoder (Juanjo)
889 - bug fix on MCBPC tables of H.263 (Juanjo)
890 - bug fix on DC coefficients of H.263 (Juanjo)
891 - added Advanced Prediction Mode on H.263/H.263+ decoder (Juanjo)
892 - now we can decode H.263 streams found in QuickTime files (Juanjo)
893 - now we can decode H.263 streams found in VIVO v1 files(Juanjo)
894 - preliminary RTP "friendly" mode for H.263/H.263+ coding. (Juanjo)
895 - added GOB header for H.263/H.263+ coding on RTP mode (Juanjo)
896 - now H.263 picture size is returned on the first decoded frame (Juanjo)
897 - added first regression tests
898 - added MPEG-2 TS demuxer
899 - new demux API for libav
900 - more accurate and faster IDCT (Michael)
901 - faster and entropy-controlled motion search (Michael)
902 - two pass video encoding (Michael)
903 - new video rate control (Michael)
904 - added MSMPEG4V1, MSMPEGV2 and WMV1 support (Michael)
905 - great performance improvement of video encoders and decoders (Michael)
906 - new and faster bit readers and vlc parsers (Michael)
907 - high quality encoding mode: tries all macroblock/VLC types (Michael)
908 - added DV video decoder
909 - preliminary RTP/RTSP support in ffserver and libavformat
910 - H.263+ AIC decoding/encoding support (Juanjo)
911 - VCD MPEG-PS mode (Juanjo)
912 - PSNR stuff (Juanjo)
913 - simple stats output (Juanjo)
914 - 16-bit and 15-bit RGB/BGR/GBR support (Bisqwit)
919 - some header fixes (Zdenek Kabelac <kabi at informatics.muni.cz>)
920 - many MMX optimizations (Nick Kurshev <nickols_k at mail.ru>)
921 - added configure system (actually a small shell script)
922 - added MPEG audio layer 1/2/3 decoding using LGPL'ed mpglib by
923 Michael Hipp (temporary solution - waiting for integer only
925 - fixed VIDIOCSYNC interrupt
926 - added Intel H.263 decoding support ('I263' AVI fourCC)
927 - added Real Video 1.0 decoding (needs further testing)
928 - simplified image formats again. Added PGM format (=grey
929 pgm). Renamed old PGM to PGMYUV.
930 - fixed msmpeg4 slice issues (tell me if you still find problems)
931 - fixed OpenDivX bugs with newer versions (added VOL header decoding)
932 - added support for MPlayer interface
933 - added macroblock skip optimization
934 - added MJPEG decoder
935 - added mmx/mmxext IDCT from libmpeg2
936 - added pgmyuvpipe, ppm, and ppm_pipe formats (original patch by Celer
937 <celer at shell.scrypt.net>)
938 - added pixel format conversion layer (e.g. for MJPEG or PPM)
939 - added deinterlacing option
941 - MPEG-4 vol header fixes (Jonathan Marsden <snmjbm at pacbell.net>)
942 - ARM optimizations (Lionel Ulmer <lionel.ulmer at free.fr>).
943 - Windows porting of file converter
944 - added MJPEG raw format (input/ouput)
945 - added JPEG image format support (input/output)
950 - fixed some std header definitions (Bjorn Lindgren
951 <bjorn.e.lindgren at telia.com>).
952 - added MPEG demuxer (MPEG-1 and 2 compatible).
954 - added prototype RM demuxer
955 - added AC3 decoding (done with libac3 by Aaron Holtzman)
956 - added decoding codec parameter guessing (.e.g. for MPEG, because the
957 header does not include them)
958 - fixed header generation in MPEG-1, AVI and ASF muxer: wmplayer can now
959 play them (only tested video)
960 - fixed H.263 white bug
961 - fixed phase rounding in img resample filter
962 - add MMX code for polyphase img resample filter
963 - added CPU autodetection
964 - added generic title/author/copyright/comment string handling (ASF and RM
966 - added SWF demux to extract MP3 track (not usable yet because no MP3
968 - added fractional frame rate support
969 - codecs are no longer searched by read_header() (should fix ffserver
975 - BGR24 patch (initial patch by Jeroen Vreeken <pe1rxq at amsat.org>)
976 - fixed raw yuv output
977 - added motion rounding support in MPEG-4
978 - fixed motion bug rounding in MSMPEG4
979 - added B-frame handling in video core
980 - added full MPEG-1 decoding support
981 - added partial (frame only) MPEG-2 support
982 - changed the FOURCC code for H.263 to "U263" to be able to see the
983 +AVI/H.263 file with the UB Video H.263+ decoder. MPlayer works with
984 this +codec ;) (JuanJo).
985 - Halfpel motion estimation after MB type selection (JuanJo)
986 - added pgm and .Y.U.V output format
987 - suppressed 'img:' protocol. Simply use: /tmp/test%d.[pgm|Y] as input or
989 - added pgmpipe I/O format (original patch from Martin Aumueller
990 <lists at reserv.at>, but changed completely since we use a format
991 instead of a protocol)
996 - added H.263/MPEG-4/MSMPEG4 decoding support. MPEG-4 decoding support
997 (for OpenDivX) is almost complete: 8x8 MVs and rounding are
998 missing. MSMPEG4 support is complete.
999 - added prototype MPEG-1 decoder. Only I- and P-frames handled yet (it
1000 can decode ffmpeg MPEGs :-)).
1001 - added libavcodec API documentation (see apiexample.c).
1002 - fixed image polyphase bug (the bottom of some images could be
1004 - added support for non clipped motion vectors (decoding only)
1005 and image sizes non-multiple of 16
1006 - added support for AC prediction (decoding only)
1007 - added file overwrite confirmation (can be disabled with -y)
1008 - added custom size picture to H.263 using H.263+ (Juanjo)
1013 - added MSMPEG4 (aka DivX) compatible encoder. Changed default codec
1014 of AVI and ASF to DIV3.
1015 - added -me option to set motion estimation method
1016 (default=log). suppressed redundant -hq option.
1017 - added options -acodec and -vcodec to force a given codec (useful for
1020 - improved dct_quantize speed
1021 - factorized some motion estimation code
1026 - removing grab code from ffserver and moved it to ffmpeg. Added
1027 multistream support to ffmpeg.
1028 - added timeshifting support for live feeds (option ?date=xxx in the
1030 - added high quality image resize code with polyphase filter (need
1031 mmx/see optimization). Enable multiple image size support in ffserver.
1032 - added multi live feed support in ffserver
1033 - suppressed master feature from ffserver (it should be done with an
1034 external program which opens the .ffm url and writes it to another
1036 - added preliminary support for video stream parsing (WAV and AVI half
1037 done). Added proper support for audio/video file conversion in
1039 - added preliminary support for video file sending from ffserver
1040 - redesigning I/O subsystem: now using URL based input and output
1042 - added WAV format support
1043 - added "tty user interface" to ffmpeg to stop grabbing gracefully
1044 - added MMX/SSE optimizations to SAD (Sums of Absolutes Differences)
1045 (Juan J. Sierralta P. a.k.a. "Juanjo" <juanjo at atmlab.utfsm.cl>)
1046 - added MMX DCT from mpeg2_movie 1.5 (Juanjo)
1047 - added new motion estimation algorithms, log and phods (Juanjo)
1048 - changed directories: libav for format handling, libavcodec for
1054 - added stereo in MPEG audio encoder
1059 - added 'high quality' mode which use motion vectors. It can be used in
1060 real time at low resolution.
1061 - fixed rounding problems which caused quality problems at high
1062 bitrates and large GOP size
1065 version 0.3.2: small fixes
1071 version 0.3.1: added avi/divx support
1074 - added MPEG-4 codec compatible with OpenDivX. It is based on the H.263 codec
1075 - added sound for flash format (not tested)
1078 version 0.3: initial public release