1 Entries are sorted chronologically from oldest to youngest within each release,
2 releases are sorted from youngest to oldest.
7 - Flash Screen Video 2 decoder
8 - ffplay/ffprobe/ffserver renamed to avplay/avprobe/avserver
9 - ffmpeg deprecated, added avconv, which is almost the same for now, except
10 for a few incompatible changes in the options, which will hopefully make them
11 easier to use. The changes are:
12 * The options placement is now strictly enforced! While in theory the
13 options for ffmpeg should be given in [input options] -i INPUT [output
14 options] OUTPUT order, in practice it was possible to give output options
15 before the -i and it mostly worked. Except when it didn't - the behavior was
16 a bit inconsistent. In avconv, it is not possible to mix input and output
17 options. All non-global options are reset after an input or output filename.
18 * All per-file options are now truly per-file - they apply only to the next
19 input or output file and specifying different values for different files
20 will now work properly (notably -ss and -t options).
21 * All per-stream options are now truly per-stream - it is possible to
22 specify which stream(s) should a given option apply to. See the Stream
23 specifiers section in the avconv manual for details.
24 * In ffmpeg some options (like -newvideo/-newaudio/...) are irregular in the
25 sense that they're specified after the output filename instead of before,
26 like all other options. In avconv this irregularity is removed, all options
27 apply to the next input or output file.
28 * -newvideo/-newaudio/-newsubtitle options were removed. Not only were they
29 irregular and highly confusing, they were also redundant. In avconv the -map
30 option will create new streams in the output file and map input streams to
31 them. E.g. avconv -i INPUT -map 0 OUTPUT will create an output stream for
32 each stream in the first input file.
33 * The -map option now has slightly different and more powerful syntax:
34 + Colons (':') are used to separate file index/stream type/stream index
35 instead of dots. Comma (',') is used to separate the sync stream instead
36 of colon.. This is done for consistency with other options.
37 + It's possible to specify stream type. E.g. -map 0:a:2 creates an
38 output stream from the third input audio stream.
39 + Omitting the stream index now maps all the streams of the given type,
40 not just the first. E.g. -map 0:s creates output streams for all the
41 subtitle streams in the first input file.
42 + Since -map can now match multiple streams, negative mappings were
43 introduced. Negative mappings disable some streams from an already
44 defined map. E.g. '-map 0 -map -0:a:1' means 'create output streams for
45 all the stream in the first input file, except for the second audio
47 * There is a new option -c (or -codec) for choosing the decoder/encoder to
48 use, which allows to precisely specify target stream(s) consistently with
49 other options. E.g. -c:v lib264 sets the codec for all video streams, -c:a:0
50 libvorbis sets the codec for the first audio stream and -c copy copies all
51 the streams without reencoding. Old -vcodec/-acodec/-scodec options are now
53 * It is now possible to precisely specify which stream should an AVOption
54 apply to. E.g. -b:v:0 2M sets the bitrate for the first video stream, while
55 -b:a 128k sets the bitrate for all audio streams. Note that the old -ab 128k
56 syntax is deprecated and will stop working soon.
57 * -map_chapters now takes only an input file index and applies to the next
58 output file. This is consistent with how all the other options work.
59 * -map_metadata now takes only an input metadata specifier and applies to
60 the next output file. Output metadata specifier is now part of the option
61 name, similarly to the AVOptions/map/codec feature above.
62 * -metadata can now be used to set metadata on streams and chapters, e.g.
63 -metadata:s:1 language=eng sets the language of the first stream to 'eng'.
64 This made -vlang/-alang/-slang options redundant, so they were removed.
65 * -qscale option now uses stream specifiers and applies to all streams, not
66 just video. I.e. plain -qscale number would now apply to all streams. To get
67 the old behavior, use -qscale:v. Also there is now a shortcut -q for -qscale
68 and -aq is now an alias for -q:a.
69 * -vbsf/-absf/-sbsf options were removed and replaced by a -bsf option which
70 uses stream specifiers. Use -bsf:v/a/s instead of the old options.
71 * -itsscale option now uses stream specifiers, so its argument is only the
73 * -intra option was removed, use -g 0 for the same effect.
74 * -psnr option was removed, use -flags +psnr for the same effect.
75 * -vf option is now an alias to the new -filter option, which uses stream specifiers.
76 * -vframes/-aframes/-dframes options are now aliases to the new -frames option.
77 * -vtag/-atag/-stag options are now aliases to the new -tag option.
79 - Windows Media Image decoder
83 - libcdio-paranoia input device for audio CD grabbing
85 - Apple ProRes decoder
86 - CELT in Ogg demuxing
87 - VC-1 interlaced decoding
88 - lut, lutrgb, and lutyuv filters
91 - Speex encoding via libspeex
92 - 4:2:2 H.264 decoding support
93 - 4:2:2 and 4:4:4 H.264 encoding with libx264
94 - Pulseaudio input device
95 - replacement Indeo 3 decoder
96 - TLS/SSL and HTTPS protocol support
97 - AVOptions API rewritten and documented
98 - most of CODEC_FLAG2_*, some CODEC_FLAG_* and many codec-specific fields in
99 AVCodecContext deprecated. Codec private options should be used instead.
100 - Properly working defaults in libx264 wrapper, support for native presets.
101 - Encrypted OMA files support
102 - Discworld II BMV decoding support
104 - OS X Video Decoder Acceleration (VDA) support
109 - E-AC-3 audio encoder
110 - ac3enc: add channel coupling support
111 - floating-point sample format support for (E-)AC-3, DCA, AAC, Vorbis decoders
112 - H.264/MPEG frame-level multithreading
113 - av_metadata_* functions renamed to av_dict_* and moved to libavutil
114 - 4:4:4 H.264 decoding support
115 - 10-bit H.264 optimizations for x86
116 - bump libswscale for recently reported ABI break
121 - VP8 frame-level multithreading
122 - NEON optimizations for VP8
123 - removed a lot of deprecated API cruft
124 - FFT and IMDCT optimizations for AVX (Sandy Bridge) processors
126 - SMPTE 302M AES3 audio decoder
127 - ffmpeg no longer quits after the 'q' key is pressed; use 'ctrl+c' instead
128 - 9bit and 10bit per sample support in the H.264 decoder
133 - WebM support in Matroska de/muxer
134 - low overhead Ogg muxing
136 - VP8 de/encoding via libvpx
137 - Demuxer for On2's IVF format
138 - Pictor/PC Paint decoder
140 - libfaad2 wrapper removed
141 - DTS-ES extension (XCh) decoding support
143 - RTSP tunneling over HTTP
144 - RTP depacketization of SVQ3
145 - -strict inofficial replaced by -strict unofficial
146 - ffplay -exitonkeydown and -exitonmousedown options added
147 - native GSM / GSM MS decoder
148 - RTP depacketization of QDM2
149 - ANSI/ASCII art playback system
150 - Lego Mindstorms RSO de/muxer
151 - SubRip subtitle file muxer and demuxer
152 - Chinese AVS encoding via libxavs
153 - ffprobe -show_packets option added
154 - RTP packetization of Theora and Vorbis
155 - RTP depacketization of MP4A-LATM
156 - RTP packetization and depacketization of VP8
158 - Apple HTTP Live Streaming demuxer
161 - G.722 ADPCM audio encoder/decoder
164 - frei0r wrapper filter
165 - change crop filter syntax to width:height:x:y
166 - make the crop filter accept parametric expressions
167 - make ffprobe accept AVFormatContext options
170 - Demuxer for Leitch/Harris' VR native stream format (LXF)
171 - RTP depacketization of the X-QT QuickTime format
172 - SAP (Session Announcement Protocol, RFC 2974) muxer and demuxer
174 - ffmpeg -crop* options removed
175 - transpose filter added
176 - ffmpeg -force_key_frames option added
177 - demuxer for receiving raw rtp:// URLs without an SDP description
178 - single stream LATM/LOAS decoder
179 - setpts filter added
180 - Win64 support for optimized x86 assembly functions
181 - MJPEG/AVI1 to JPEG/JFIF bitstream filter
182 - ASS subtitle encoder and decoder
183 - IEC 61937 encapsulation for E-AC-3, TrueHD, DTS-HD (for HDMI passthrough)
184 - overlay filter added
185 - rename aspect filter to setdar, and pixelaspect to setsar
187 - Mobotix .mxg demuxer
188 - frei0r source added
189 - hqdn3d filter added
190 - RTP depacketization of QCELP
192 - gradfun filter added
194 - replace the ocv_smooth filter with a more generic ocv filter
195 - Windows Televison (WTV) demuxer
196 - FFmpeg metadata format muxer and demuxer
197 - SubRip (srt) subtitle decoder
198 - floating-point AC-3 encoder added
200 - ffmpeg -copytb option added
202 - Wing Commander IV movies decoder added
204 - Bink version 'b' audio and video decoder
205 - Bitmap Brothers JV playback system
206 - Apple HTTP Live Streaming protocol handler
207 - sndio support for playback and record
208 - Linux framebuffer input device added
209 - Chronomaster DFA decoder
210 - Mobotix MxPEG decoder
211 - AAC encoding via libvo-aacenc
212 - AMR-WB encoding via libvo-amrwbenc
214 - fieldorder video filter added
219 - PB-frame decoding for H.263
220 - deprecated vhook subsystem removed
221 - deprecated old scaler removed
223 - Alpha channel scaler
225 - RTP packetization of H.263
226 - RTP packetization of AMR
227 - RTP depacketization of Vorbis
228 - CorePNG decoding support
229 - Cook multichannel decoding support
230 - introduced avlanguage helpers in libavformat
231 - 8088flex TMV demuxer and decoder
232 - per-stream language-tags extraction in asfdec
233 - V210 decoder and encoder
234 - remaining GPL parts in AC-3 decoder converted to LGPL
236 - SoX native format muxer and demuxer
237 - AMR-NB decoding/encoding, AMR-WB decoding via OpenCORE libraries
239 - Electronic Arts Madcow decoder
240 - DivX (XSUB) subtitle encoder
241 - nonfree libamr support for AMR-NB/WB decoding/encoding removed
242 - experimental AAC encoder
243 - RTP depacketization of ASF and RTSP from WMS servers
244 - RTMP support in libavformat
245 - noX handling for OPT_BOOL X options
247 - IEC-61937 compatible Muxer
249 - Bluray (PGS) subtitle decoder
250 - LPCM support in MPEG-TS (HDMV RID as found on Blu-ray disks)
252 - Core Audio Format demuxer
254 - MD STUDIO audio demuxer
255 - RF64 support in WAV demuxer
256 - MPEG-4 Audio Lossless Coding (ALS) decoder
257 - -formats option split into -formats, -codecs, -bsfs, and -protocols
259 - CDG demuxer and decoder
261 - Auravision Aura 1 and 2 decoders
262 - Deluxe Paint Animation playback system
264 - Adobe Filmstrip muxer and demuxer
265 - RTP depacketization of H.263
266 - Bink demuxer and audio/video decoders
267 - enable symbol versioning by default for linkers that support it
268 - IFF PBM/ILBM bitmap decoder
271 - RTP depacketization of AMR
277 - Kega Game Video (KGV1) decoder
278 - VorbisComment writing for FLAC, Ogg FLAC and Ogg Speex files
279 - RTP depacketization of Theora
280 - HTTP Digest authentication
281 - RTMP/RTMPT/RTMPS/RTMPE/RTMPTE protocol support via librtmp
282 - Psygnosis YOP demuxer and video decoder
283 - spectral extension support in the E-AC-3 decoder
284 - unsharp video filter
285 - RTP hinting in the mov/3gp/mp4 muxer
286 - Dirac in Ogg demuxing
287 - seek to keyframes in Ogg
288 - 4:2:2 and 4:4:4 Theora decoding
289 - 35% faster VP3/Theora decoding
290 - faster AAC decoding
291 - faster H.264 decoding
292 - RealAudio 1.0 (14.4K) encoder
297 - DV50 AKA DVCPRO50 encoder, decoder, muxer and demuxer
298 - TechSmith Camtasia (TSCC) video decoder
299 - IBM Ultimotion (ULTI) video decoder
300 - Sierra Online audio file demuxer and decoder
301 - Apple QuickDraw (qdrw) video decoder
302 - Creative ADPCM audio decoder (16 bits as well as 8 bits schemes)
303 - Electronic Arts Multimedia (WVE/UV2/etc.) file demuxer
304 - Miro VideoXL (VIXL) video decoder
305 - H.261 video encoder
307 - Nullsoft Video (NSV) file demuxer
308 - Shorten audio decoder
310 - Apple Lossless Audio Codec (ALAC) decoder
311 - Winnov WNV1 video decoder
312 - Autodesk Animator Studio Codec (AASC) decoder
313 - Indeo 2 video decoder
314 - Fraps FPS1 video decoder
315 - Snow video encoder/decoder
316 - Sonic audio encoder/decoder
317 - Vorbis audio decoder
318 - Macromedia ADPCM decoder
319 - Duck TrueMotion 2 video decoder
320 - support for decoding FLX and DTA extensions in FLIC files
321 - H.264 custom quantization matrices support
322 - ffserver fixed, it should now be usable again
324 - Real Cooker audio decoder
325 - TrueSpeech audio decoder
326 - WMA2 audio decoder fixed, now all files should play correctly
327 - RealAudio 14.4 and 28.8 decoders fixed
329 - build system improvements
330 - tabs and trailing whitespace removed from the codebase
331 - CamStudio video decoder
332 - AIFF/AIFF-C audio format, encoding and decoding
333 - ADTS AAC file reading and writing
334 - Creative VOC file reading and writing
335 - American Laser Games multimedia (*.mm) playback system
336 - Zip Motion Blocks Video decoder
337 - improved Theora/VP3 decoder
338 - True Audio (TTA) decoder
339 - AVS demuxer and video decoder
341 - Smacker demuxer and decoder
342 - NuppelVideo/MythTV demuxer and RTjpeg decoder
344 - MPEG-2 intra VLC support
345 - MPEG-2 4:2:2 encoder
346 - Flash Screen Video decoder
348 - Chinese AVS decoder
351 - VC-1/WMV3/WMV9 video decoder
354 - VMware video decoder
357 - WavPack lossless audio decoder
358 - Targa (.TGA) picture decoder
359 - Vorbis audio encoder
360 - Delphine Software .cin demuxer/audio and video decoder
361 - Tiertex .seq demuxer/video decoder
363 - TIFF picture encoder and decoder
364 - GIF picture decoder
365 - Intel Music Coder decoder
366 - Zip Motion Blocks Video encoder
368 - Flash Screen Video encoder
369 - Theora encoding via libtheora
372 - GSM-MS encoder and decoder
374 - DXA demuxer and decoder
376 - Gamecube movie (.THP) playback system
377 - Blackfin optimizations
378 - Interplay C93 demuxer and video decoder
379 - Bethsoft VID demuxer and video decoder
382 - V.Flash PTX decoder
383 - RoQ muxer, RoQ audio encoder
384 - Renderware TXD demuxer and decoder
385 - extern C declarations for C++ removed from headers
386 - sws_flags command line option
390 - OS/2 support removed and restored again
393 - additional SPARC (VIS) optimizations
395 - slice-based parallel H.264 decoding
396 - Monkey's Audio demuxer and decoder
397 - AMV audio and video decoder
399 - H.264 PAFF decoding
400 - Nellymoser ASAO decoder
401 - Beam Software SIFF demuxer and decoder
402 - libvorbis Vorbis decoding removed in favor of native decoder
403 - IntraX8 (J-Frame) subdecoder for WMV2 and VC-1
404 - Ogg (Theora, Vorbis and FLAC) muxer
405 - The "device" muxers and demuxers are now in a new libavdevice library
406 - PC Paintbrush PCX decoder
407 - Sun Rasterfile decoder
408 - TechnoTrend PVA demuxer
409 - Linux Media Labs MPEG-4 (LMLM4) demuxer
410 - AVM2 (Flash 9) SWF muxer
411 - QT variant of IMA ADPCM encoder
413 - iPod/iPhone compatible mp4 muxer
415 - MSN TCP Webcam stream demuxer
416 - RL2 demuxer / decoder
419 - non-recursive Makefiles
421 - MAXIS EA XA (.xa) demuxer / decoder
425 - Electronic Arts CMV decoder
426 - Motion Pixels Video decoder
427 - Motion Pixels MVI demuxer
428 - removed animated GIF decoder/demuxer
429 - D-Cinema audio muxer
430 - Electronic Arts TGV decoder
431 - Apple Lossless Audio Codec (ALAC) encoder
433 - floating point PCM encoder/decoder
435 - DV100 AKA DVCPRO HD decoder and demuxer
436 - E-AC-3 support added to AC-3 decoder
437 - Nellymoser ASAO encoder
438 - ASS and SSA demuxer and muxer
439 - liba52 wrapper removed
440 - SVQ3 watermark decoding support
441 - Speex decoding via libspeex
442 - Electronic Arts TGQ decoder
444 - QCELP / PureVoice decoder
446 - hybrid WavPack support
447 - R3D REDCODE demuxer
448 - ALSA support for playback and record
449 - Electronic Arts TQI decoder
450 - OpenJPEG based JPEG 2000 decoder
451 - NC (NC4600) camera file demuxer
452 - Gopher client support
454 - generic metadata API
459 - DV encoder, DV muxer
460 - Microsoft RLE video decoder
461 - Microsoft Video-1 decoder
462 - Apple Animation (RLE) decoder
463 - Apple Graphics (SMC) decoder
464 - Apple Video (RPZA) decoder
466 - Sega FILM (CPK) file demuxer
467 - Westwood multimedia support (VQA & AUD files)
468 - Id Quake II CIN playback support
470 - FLIC playback support
471 - RealVideo 2.0 (RV20) decoder
472 - Duck TrueMotion v1 (DUCK) video decoder
473 - Sierra VMD demuxer and video decoder
474 - MSZH and ZLIB decoder support
478 - rate distortion optimal cbp support
479 - rate distorted optimal ac prediction for MPEG-4
480 - rate distorted optimal lambda->qp support
481 - AAC encoding with libfaac
482 - Sunplus JPEG codec (SP5X) support
483 - use Lagrange multipler instead of QP for ratecontrol
484 - Theora/VP3 decoding support
485 - XA and ADX ADPCM codecs
486 - export MPEG-2 active display area / pan scan
487 - Add support for configuring with IBM XLC
488 - floating point AAN DCT
489 - initial support for zygo video (not complete)
491 - new audio/video parser API
493 - av_read_frame() and av_seek_frame() support
494 - missing last frame fixes
495 - seek by mouse in ffplay
496 - noise reduction of DCT coefficients
497 - H.263 OBMC & 4MV support
498 - H.263 alternative inter vlc support
500 - H.263 slice structured mode
501 - interlaced DCT support for MPEG-2 encoding
502 - stuffing to stay above min_bitrate
503 - MB type & QP visualization
504 - frame stepping for ffplay
505 - interlaced motion estimation
506 - alternate scantable support
507 - SVCD scan offset support
510 - quantizer noise shaping
511 - G.726 ADPCM audio codec
513 - multithreaded/SMP motion estimation
514 - multithreaded/SMP encoding for MPEG-1/MPEG-2/MPEG-4/H.263
515 - multithreaded/SMP decoding for MPEG-2
517 - Metrowerks CodeWarrior suppport
518 - H.263+ custom pcf support
519 - nicer output for 'ffmpeg -formats'
521 - SGI image format, encoding and decoding
522 - H.264 loop filter support
523 - H.264 CABAC support
524 - nicer looking arrows for the motion vector visualization
525 - improved VCD support
526 - audio timestamp drift compensation
527 - MPEG-2 YUV 422/444 support
528 - polyphase kaiser windowed sinc and blackman nuttall windowed sinc audio resample
529 - better image scaling
531 - correctly interleave packets during encoding
532 - VIS optimized motion compensation
533 - intra_dc_precision>0 encoding support
534 - support reuse of motion vectors/MB types/field select values of the source video
535 - more accurate deblock filter
537 - many optimizations and bugfixes
538 - FunCom ISS audio file demuxer and according ADPCM decoding
543 - MPEG-2 video encoding (Michael)
544 - Id RoQ playback subsystem (Mike Melanson and Tim Ferguson)
545 - Wing Commander III Movie (.mve) file playback subsystem (Mike Melanson
547 - Xan DPCM audio decoder (Mario Brito)
548 - Interplay MVE playback subsystem (Mike Melanson)
549 - Duck DK3 and DK4 ADPCM audio decoders (Mike Melanson)
554 - RealAudio 1.0 (14_4) and 2.0 (28_8) native decoders. Author unknown, code from mplayerhq
555 (originally from public domain player for Amiga at http://www.honeypot.net/audio)
556 - current version now also compiles with older GCC (Fabrice)
557 - 4X multimedia playback system including 4xm file demuxer (Mike
558 Melanson), and 4X video and audio codecs (Michael)
559 - Creative YUV (CYUV) decoder (Mike Melanson)
560 - FFV1 codec (our very simple lossless intra only codec, compresses much better
561 than HuffYUV) (Michael)
562 - ASV1 (Asus), H.264, Intel indeo3 codecs have been added (various)
563 - tiny PNG encoder and decoder, tiny GIF decoder, PAM decoder (PPM with
564 alpha support), JPEG YUV colorspace support. (Fabrice Bellard)
565 - ffplay has been replaced with a newer version which uses SDL (optionally)
566 for multiplatform support (Fabrice)
567 - Sorenson Version 3 codec (SVQ3) support has been added (decoding only) - donated
569 - AMR format has been added (Johannes Carlsson)
570 - 3GP support has been added (Johannes Carlsson)
571 - VP3 codec has been added (Mike Melanson)
572 - more MPEG-1/2 fixes
573 - better multiplatform support, MS Visual Studio fixes (various)
574 - AltiVec optimizations (Magnus Damn and others)
575 - SH4 processor support has been added (BERO)
576 - new public interfaces (avcodec_get_pix_fmt) (Roman Shaposhnick)
577 - VOB streaming support (Brian Foley)
578 - better MP3 autodetection (Andriy Rysin)
579 - qpel encoding (Michael)
580 - 4mv+b frames encoding finally fixed (Michael)
581 - chroma ME (Michael)
582 - 5 comparison functions for ME (Michael)
583 - B-frame encoding speedup (Michael)
584 - WMV2 codec (unfinished - Michael)
585 - user specified diamond size for EPZS (Michael)
586 - Playstation STR playback subsystem, still experimental (Mike and Michael)
587 - ASV2 codec (Michael)
588 - CLJR decoder (Alex)
590 .. And lots more new enhancements and fixes.
595 - completely new integer only MPEG audio layer 1/2/3 decoder rewritten
597 - Recoded DCT and motion vector search with gcc (no longer depends on nasm)
598 - fix quantization bug in AC3 encoder
599 - added PCM codecs and format. Corrected WAV/AVI/ASF PCM issues
600 - added prototype ffplay program
601 - added GOB header parsing on H.263/H.263+ decoder (Juanjo)
602 - bug fix on MCBPC tables of H.263 (Juanjo)
603 - bug fix on DC coefficients of H.263 (Juanjo)
604 - added Advanced Prediction Mode on H.263/H.263+ decoder (Juanjo)
605 - now we can decode H.263 streams found in QuickTime files (Juanjo)
606 - now we can decode H.263 streams found in VIVO v1 files(Juanjo)
607 - preliminary RTP "friendly" mode for H.263/H.263+ coding. (Juanjo)
608 - added GOB header for H.263/H.263+ coding on RTP mode (Juanjo)
609 - now H.263 picture size is returned on the first decoded frame (Juanjo)
610 - added first regression tests
611 - added MPEG-2 TS demuxer
612 - new demux API for libav
613 - more accurate and faster IDCT (Michael)
614 - faster and entropy-controlled motion search (Michael)
615 - two pass video encoding (Michael)
616 - new video rate control (Michael)
617 - added MSMPEG4V1, MSMPEGV2 and WMV1 support (Michael)
618 - great performance improvement of video encoders and decoders (Michael)
619 - new and faster bit readers and vlc parsers (Michael)
620 - high quality encoding mode: tries all macroblock/VLC types (Michael)
621 - added DV video decoder
622 - preliminary RTP/RTSP support in ffserver and libavformat
623 - H.263+ AIC decoding/encoding support (Juanjo)
624 - VCD MPEG-PS mode (Juanjo)
625 - PSNR stuff (Juanjo)
626 - simple stats output (Juanjo)
627 - 16-bit and 15-bit RGB/BGR/GBR support (Bisqwit)
632 - some header fixes (Zdenek Kabelac <kabi at informatics.muni.cz>)
633 - many MMX optimizations (Nick Kurshev <nickols_k at mail.ru>)
634 - added configure system (actually a small shell script)
635 - added MPEG audio layer 1/2/3 decoding using LGPL'ed mpglib by
636 Michael Hipp (temporary solution - waiting for integer only
638 - fixed VIDIOCSYNC interrupt
639 - added Intel H.263 decoding support ('I263' AVI fourCC)
640 - added Real Video 1.0 decoding (needs further testing)
641 - simplified image formats again. Added PGM format (=grey
642 pgm). Renamed old PGM to PGMYUV.
643 - fixed msmpeg4 slice issues (tell me if you still find problems)
644 - fixed OpenDivX bugs with newer versions (added VOL header decoding)
645 - added support for MPlayer interface
646 - added macroblock skip optimization
647 - added MJPEG decoder
648 - added mmx/mmxext IDCT from libmpeg2
649 - added pgmyuvpipe, ppm, and ppm_pipe formats (original patch by Celer
650 <celer at shell.scrypt.net>)
651 - added pixel format conversion layer (e.g. for MJPEG or PPM)
652 - added deinterlacing option
654 - MPEG-4 vol header fixes (Jonathan Marsden <snmjbm at pacbell.net>)
655 - ARM optimizations (Lionel Ulmer <lionel.ulmer at free.fr>).
656 - Windows porting of file converter
657 - added MJPEG raw format (input/ouput)
658 - added JPEG image format support (input/output)
663 - fixed some std header definitions (Bjorn Lindgren
664 <bjorn.e.lindgren at telia.com>).
665 - added MPEG demuxer (MPEG-1 and 2 compatible).
667 - added prototype RM demuxer
668 - added AC3 decoding (done with libac3 by Aaron Holtzman)
669 - added decoding codec parameter guessing (.e.g. for MPEG, because the
670 header does not include them)
671 - fixed header generation in MPEG-1, AVI and ASF muxer: wmplayer can now
672 play them (only tested video)
673 - fixed H.263 white bug
674 - fixed phase rounding in img resample filter
675 - add MMX code for polyphase img resample filter
676 - added CPU autodetection
677 - added generic title/author/copyright/comment string handling (ASF and RM
679 - added SWF demux to extract MP3 track (not usable yet because no MP3
681 - added fractional frame rate support
682 - codecs are no longer searched by read_header() (should fix ffserver
688 - BGR24 patch (initial patch by Jeroen Vreeken <pe1rxq at amsat.org>)
689 - fixed raw yuv output
690 - added motion rounding support in MPEG-4
691 - fixed motion bug rounding in MSMPEG4
692 - added B-frame handling in video core
693 - added full MPEG-1 decoding support
694 - added partial (frame only) MPEG-2 support
695 - changed the FOURCC code for H.263 to "U263" to be able to see the
696 +AVI/H.263 file with the UB Video H.263+ decoder. MPlayer works with
697 this +codec ;) (JuanJo).
698 - Halfpel motion estimation after MB type selection (JuanJo)
699 - added pgm and .Y.U.V output format
700 - suppressed 'img:' protocol. Simply use: /tmp/test%d.[pgm|Y] as input or
702 - added pgmpipe I/O format (original patch from Martin Aumueller
703 <lists at reserv.at>, but changed completely since we use a format
704 instead of a protocol)
709 - added H.263/MPEG-4/MSMPEG4 decoding support. MPEG-4 decoding support
710 (for OpenDivX) is almost complete: 8x8 MVs and rounding are
711 missing. MSMPEG4 support is complete.
712 - added prototype MPEG-1 decoder. Only I- and P-frames handled yet (it
713 can decode ffmpeg MPEGs :-)).
714 - added libavcodec API documentation (see apiexample.c).
715 - fixed image polyphase bug (the bottom of some images could be
717 - added support for non clipped motion vectors (decoding only)
718 and image sizes non-multiple of 16
719 - added support for AC prediction (decoding only)
720 - added file overwrite confirmation (can be disabled with -y)
721 - added custom size picture to H.263 using H.263+ (Juanjo)
726 - added MSMPEG4 (aka DivX) compatible encoder. Changed default codec
727 of AVI and ASF to DIV3.
728 - added -me option to set motion estimation method
729 (default=log). suppressed redundant -hq option.
730 - added options -acodec and -vcodec to force a given codec (useful for
733 - improved dct_quantize speed
734 - factorized some motion estimation code
739 - removing grab code from ffserver and moved it to ffmpeg. Added
740 multistream support to ffmpeg.
741 - added timeshifting support for live feeds (option ?date=xxx in the
743 - added high quality image resize code with polyphase filter (need
744 mmx/see optimization). Enable multiple image size support in ffserver.
745 - added multi live feed support in ffserver
746 - suppressed master feature from ffserver (it should be done with an
747 external program which opens the .ffm url and writes it to another
749 - added preliminary support for video stream parsing (WAV and AVI half
750 done). Added proper support for audio/video file conversion in
752 - added preliminary support for video file sending from ffserver
753 - redesigning I/O subsystem: now using URL based input and output
755 - added WAV format support
756 - added "tty user interface" to ffmpeg to stop grabbing gracefully
757 - added MMX/SSE optimizations to SAD (Sums of Absolutes Differences)
758 (Juan J. Sierralta P. a.k.a. "Juanjo" <juanjo at atmlab.utfsm.cl>)
759 - added MMX DCT from mpeg2_movie 1.5 (Juanjo)
760 - added new motion estimation algorithms, log and phods (Juanjo)
761 - changed directories: libav for format handling, libavcodec for
767 - added stereo in MPEG audio encoder
772 - added 'high quality' mode which use motion vectors. It can be used in
773 real time at low resolution.
774 - fixed rounding problems which caused quality problems at high
775 bitrates and large GOP size
778 version 0.3.2: small fixes
784 version 0.3.1: added avi/divx support
787 - added MPEG-4 codec compatible with OpenDivX. It is based on the H.263 codec
788 - added sound for flash format (not tested)
791 version 0.3: initial public release