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  1. Entries are sorted chronologically from oldest to youngest within each release,
  2. releases are sorted from youngest to oldest.
  3. version next:
  4. - openal input device added
  5. - boxblur filter added
  6. - BWF muxer
  7. - Flash Screen Video 2 decoder
  8. - lavfi input device added
  9. - 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. * -newvideo/-newaudio/-newsubtitle are gone, because they were redundant and
  13. worked in a nonstandard way. -map is sufficient to add streams to output
  14. files.
  15. * -map now has slightly different and more powerful syntax.
  16. + it's possible to specify stream type. E.g. -map 0:a:2 means 'third
  17. audio stream'.
  18. + omitting the stream index now maps all the streams of the given
  19. type, not just the first. E.g. -map 0:s maps all the subtitle streams.
  20. + colons (':') are used to separate file index/stream type/stream
  21. index. Comma (',') is used to separate the sync stream. This is done
  22. for consistency with other options.
  23. + since -map can now match multiple streams, negative mappings were
  24. introduced. Negative mappings disable some streams from an already
  25. defined map. E.g. '-map 0 -map -0:a:1' means 'map everything except
  26. for the second audio stream'.
  27. * -vcodec/-acodec/-scodec are replaced by -c (or -codec), which
  28. allows to precisely specify target stream(s) consistently with other
  29. options. E.g. '-c:v libx264' sets the codec for all video streams,
  30. '-c:a:0 libvorbis' sets the codec for the first audio stream and '-c
  31. copy' copies all the streams.
  32. * It is now possible to precisely specify which stream should an AVOption
  33. apply to. See the manual for detailed explanation.
  34. * -map_chapters now takes only an input file index and applies to the next
  35. output file. This is consistent with how all the other options work.
  36. * -map_metadata now takes only an input metadata specifier and applies to
  37. the next output file. Output metadata specifier is now part of the option
  38. name, similarly to the AVOptions/map/codec feature above.
  39. * Presets in avconv are disabled, because only libx264 used them and
  40. presets for libx264 can now be specified using a private option
  41. '-preset <presetname>'.
  42. * -intra option was removed, it's equivalent to -g 0.
  43. - XMV demuxer
  44. - LOAS demuxer
  45. - ashowinfo filter added
  46. - Windows Media Image decoder
  47. - amovie source added
  48. - LATM muxer
  49. - Speex encoder via libspeex
  50. - JSON output in ffprobe
  51. - WTV muxer
  52. - Optional C++ Support (needed for libstagefright)
  53. - H.264 Decoding on Android via Stagefright
  54. - Prores decoder
  55. - BIN/XBIN/ADF/IDF text file decoder
  56. - aconvert audio filter added
  57. - audio support to lavfi input device added
  58. - libcdio-paranoia input device for audio CD grabbing
  59. version 0.8:
  60. - many many things we forgot because we rather write code than changelogs
  61. - WebM support in Matroska de/muxer
  62. - low overhead Ogg muxing
  63. - MMS-TCP support
  64. - VP8 de/encoding via libvpx
  65. - Demuxer for On2's IVF format
  66. - Pictor/PC Paint decoder
  67. - HE-AAC v2 decoder
  68. - libfaad2 wrapper removed
  69. - DTS-ES extension (XCh) decoding support
  70. - native VP8 decoder
  71. - RTSP tunneling over HTTP
  72. - RTP depacketization of SVQ3
  73. - -strict inofficial replaced by -strict unofficial
  74. - ffplay -exitonkeydown and -exitonmousedown options added
  75. - native GSM / GSM MS decoder
  76. - RTP depacketization of QDM2
  77. - ANSI/ASCII art playback system
  78. - Lego Mindstorms RSO de/muxer
  79. - libavcore added (and subsequently removed)
  80. - SubRip subtitle file muxer and demuxer
  81. - Chinese AVS encoding via libxavs
  82. - ffprobe -show_packets option added
  83. - RTP packetization of Theora and Vorbis
  84. - RTP depacketization of MP4A-LATM
  85. - RTP packetization and depacketization of VP8
  86. - hflip filter
  87. - Apple HTTP Live Streaming demuxer
  88. - a64 codec
  89. - MMS-HTTP support
  90. - G.722 ADPCM audio encoder/decoder
  91. - R10k video decoder
  92. - ocv_smooth filter
  93. - frei0r wrapper filter
  94. - change crop filter syntax to width:height:x:y
  95. - make the crop filter accept parametric expressions
  96. - make ffprobe accept AVFormatContext options
  97. - yadif filter
  98. - blackframe filter
  99. - Demuxer for Leitch/Harris' VR native stream format (LXF)
  100. - RTP depacketization of the X-QT QuickTime format
  101. - SAP (Session Announcement Protocol, RFC 2974) muxer and demuxer
  102. - cropdetect filter
  103. - ffmpeg -crop* options removed
  104. - transpose filter added
  105. - ffmpeg -force_key_frames option added
  106. - demuxer for receiving raw rtp:// URLs without an SDP description
  107. - single stream LATM/LOAS decoder
  108. - setpts filter added
  109. - Win64 support for optimized x86 assembly functions
  110. - MJPEG/AVI1 to JPEG/JFIF bitstream filter
  111. - ASS subtitle encoder and decoder
  112. - IEC 61937 encapsulation for E-AC-3, TrueHD, DTS-HD (for HDMI passthrough)
  113. - overlay filter added
  114. - rename aspect filter to setdar, and pixelaspect to setsar
  115. - IEC 61937 demuxer
  116. - Mobotix .mxg demuxer
  117. - frei0r source added
  118. - hqdn3d filter added
  119. - RTP depacketization of QCELP
  120. - FLAC parser added
  121. - gradfun filter added
  122. - AMR-WB decoder
  123. - replace the ocv_smooth filter with a more generic ocv filter
  124. - Windows Televison (WTV) demuxer
  125. - FFmpeg metadata format muxer and demuxer
  126. - SubRip (srt) subtitle encoder and decoder
  127. - floating-point AC-3 encoder added
  128. - Lagarith decoder
  129. - ffmpeg -copytb option added
  130. - IVF muxer added
  131. - Wing Commander IV movies decoder added
  132. - movie source added
  133. - Bink version 'b' audio and video decoder
  134. - Bitmap Brothers JV playback system
  135. - Apple HTTP Live Streaming protocol handler
  136. - sndio support for playback and record
  137. - Linux framebuffer input device added
  138. - Chronomaster DFA decoder
  139. - DPX image encoder
  140. - MicroDVD subtitle file muxer and demuxer
  141. - Playstation Portable PMP format demuxer
  142. - fieldorder video filter added
  143. - AAC encoding via libvo-aacenc
  144. - AMR-WB encoding via libvo-amrwbenc
  145. - xWMA demuxer
  146. - Mobotix MxPEG decoder
  147. - VP8 frame-multithreading
  148. - NEON optimizations for VP8
  149. - Lots of deprecated API cruft removed
  150. - fft and imdct optimizations for AVX (Sandy Bridge) processors
  151. - showinfo filter added
  152. - SMPTE 302M AES3 audio decoder
  153. - Apple Core Audio Format muxer
  154. - 9bit and 10bit per sample support in the H.264 decoder
  155. - 9bit and 10bit FFV1 encoding / decoding
  156. - split filter added
  157. - select filter added
  158. - sdl output device added
  159. - libmpcodecs video filter support (3 times as many filters than before)
  160. - mpeg2 aspect ratio dection fixed
  161. - libxvid aspect pickiness fixed
  162. - Frame multithreaded decoding
  163. - E-AC-3 audio encoder
  164. - ac3enc: add channel coupling support
  165. - floating-point sample format support to the ac3, eac3, dca, aac, and vorbis decoders.
  166. - H264/MPEG frame-level multi-threading
  167. - All av_metadata_* functions renamed to av_dict_* and moved to libavutil
  168. - 4:4:4 H.264 decoding support
  169. - 10-bit H.264 optimizations for x86
  170. - lut, lutrgb, and lutyuv filters added
  171. - buffersink libavfilter sink added
  172. - Bump libswscale for recently reported ABI break
  173. version 0.7:
  174. - all the changes for 0.8, but keeping API/ABI compatibility with the 0.6 release
  175. version 0.6:
  176. - PB-frame decoding for H.263
  177. - deprecated vhook subsystem removed
  178. - deprecated old scaler removed
  179. - VQF demuxer
  180. - Alpha channel scaler
  181. - PCX encoder
  182. - RTP packetization of H.263
  183. - RTP packetization of AMR
  184. - RTP depacketization of Vorbis
  185. - CorePNG decoding support
  186. - Cook multichannel decoding support
  187. - introduced avlanguage helpers in libavformat
  188. - 8088flex TMV demuxer and decoder
  189. - per-stream language-tags extraction in asfdec
  190. - V210 decoder and encoder
  191. - remaining GPL parts in AC-3 decoder converted to LGPL
  192. - QCP demuxer
  193. - SoX native format muxer and demuxer
  194. - AMR-NB decoding/encoding, AMR-WB decoding via OpenCORE libraries
  195. - DPX image decoder
  196. - Electronic Arts Madcow decoder
  197. - DivX (XSUB) subtitle encoder
  198. - nonfree libamr support for AMR-NB/WB decoding/encoding removed
  199. - experimental AAC encoder
  200. - RTP depacketization of ASF and RTSP from WMS servers
  201. - RTMP support in libavformat
  202. - noX handling for OPT_BOOL X options
  203. - Wave64 demuxer
  204. - IEC-61937 compatible Muxer
  205. - TwinVQ decoder
  206. - Bluray (PGS) subtitle decoder
  207. - LPCM support in MPEG-TS (HDMV RID as found on Blu-ray disks)
  208. - WMA Pro decoder
  209. - Core Audio Format demuxer
  210. - Atrac1 decoder
  211. - MD STUDIO audio demuxer
  212. - RF64 support in WAV demuxer
  213. - MPEG-4 Audio Lossless Coding (ALS) decoder
  214. - -formats option split into -formats, -codecs, -bsfs, and -protocols
  215. - IV8 demuxer
  216. - CDG demuxer and decoder
  217. - R210 decoder
  218. - Auravision Aura 1 and 2 decoders
  219. - Deluxe Paint Animation playback system
  220. - SIPR decoder
  221. - Adobe Filmstrip muxer and demuxer
  222. - RTP depacketization of H.263
  223. - Bink demuxer and audio/video decoders
  224. - enable symbol versioning by default for linkers that support it
  225. - IFF PBM/ILBM bitmap decoder
  226. - concat protocol
  227. - Indeo 5 decoder
  228. - RTP depacketization of AMR
  229. - WMA Voice decoder
  230. - ffprobe tool
  231. - AMR-NB decoder
  232. - RTSP muxer
  233. - HE-AAC v1 decoder
  234. - Kega Game Video (KGV1) decoder
  235. - VorbisComment writing for FLAC, Ogg FLAC and Ogg Speex files
  236. - RTP depacketization of Theora
  237. - HTTP Digest authentication
  238. - RTMP/RTMPT/RTMPS/RTMPE/RTMPTE protocol support via librtmp
  239. - Psygnosis YOP demuxer and video decoder
  240. - spectral extension support in the E-AC-3 decoder
  241. - unsharp video filter
  242. - RTP hinting in the mov/3gp/mp4 muxer
  243. - Dirac in Ogg demuxing
  244. - seek to keyframes in Ogg
  245. - 4:2:2 and 4:4:4 Theora decoding
  246. - 35% faster VP3/Theora decoding
  247. - faster AAC decoding
  248. - faster H.264 decoding
  249. - RealAudio 1.0 (14.4K) encoder
  250. version 0.5:
  251. - DV50 AKA DVCPRO50 encoder, decoder, muxer and demuxer
  252. - TechSmith Camtasia (TSCC) video decoder
  253. - IBM Ultimotion (ULTI) video decoder
  254. - Sierra Online audio file demuxer and decoder
  255. - Apple QuickDraw (qdrw) video decoder
  256. - Creative ADPCM audio decoder (16 bits as well as 8 bits schemes)
  257. - Electronic Arts Multimedia (WVE/UV2/etc.) file demuxer
  258. - Miro VideoXL (VIXL) video decoder
  259. - H.261 video encoder
  260. - QPEG video decoder
  261. - Nullsoft Video (NSV) file demuxer
  262. - Shorten audio decoder
  263. - LOCO video decoder
  264. - Apple Lossless Audio Codec (ALAC) decoder
  265. - Winnov WNV1 video decoder
  266. - Autodesk Animator Studio Codec (AASC) decoder
  267. - Indeo 2 video decoder
  268. - Fraps FPS1 video decoder
  269. - Snow video encoder/decoder
  270. - Sonic audio encoder/decoder
  271. - Vorbis audio decoder
  272. - Macromedia ADPCM decoder
  273. - Duck TrueMotion 2 video decoder
  274. - support for decoding FLX and DTA extensions in FLIC files
  275. - H.264 custom quantization matrices support
  276. - ffserver fixed, it should now be usable again
  277. - QDM2 audio decoder
  278. - Real Cooker audio decoder
  279. - TrueSpeech audio decoder
  280. - WMA2 audio decoder fixed, now all files should play correctly
  281. - RealAudio 14.4 and 28.8 decoders fixed
  282. - JPEG-LS decoder
  283. - build system improvements
  284. - tabs and trailing whitespace removed from the codebase
  285. - CamStudio video decoder
  286. - AIFF/AIFF-C audio format, encoding and decoding
  287. - ADTS AAC file reading and writing
  288. - Creative VOC file reading and writing
  289. - American Laser Games multimedia (*.mm) playback system
  290. - Zip Motion Blocks Video decoder
  291. - improved Theora/VP3 decoder
  292. - True Audio (TTA) decoder
  293. - AVS demuxer and video decoder
  294. - JPEG-LS encoder
  295. - Smacker demuxer and decoder
  296. - NuppelVideo/MythTV demuxer and RTjpeg decoder
  297. - KMVC decoder
  298. - MPEG-2 intra VLC support
  299. - MPEG-2 4:2:2 encoder
  300. - Flash Screen Video decoder
  301. - GXF demuxer
  302. - Chinese AVS decoder
  303. - GXF muxer
  304. - MXF demuxer
  305. - VC-1/WMV3/WMV9 video decoder
  306. - MacIntel support
  307. - AVISynth support
  308. - VMware video decoder
  309. - VP5 video decoder
  310. - VP6 video decoder
  311. - WavPack lossless audio decoder
  312. - Targa (.TGA) picture decoder
  313. - Vorbis audio encoder
  314. - Delphine Software .cin demuxer/audio and video decoder
  315. - Tiertex .seq demuxer/video decoder
  316. - MTV demuxer
  317. - TIFF picture encoder and decoder
  318. - GIF picture decoder
  319. - Intel Music Coder decoder
  320. - Zip Motion Blocks Video encoder
  321. - Musepack decoder
  322. - Flash Screen Video encoder
  323. - Theora encoding via libtheora
  324. - BMP encoder
  325. - WMA encoder
  326. - GSM-MS encoder and decoder
  327. - DCA decoder
  328. - DXA demuxer and decoder
  329. - DNxHD decoder
  330. - Gamecube movie (.THP) playback system
  331. - Blackfin optimizations
  332. - Interplay C93 demuxer and video decoder
  333. - Bethsoft VID demuxer and video decoder
  334. - CRYO APC demuxer
  335. - Atrac3 decoder
  336. - V.Flash PTX decoder
  337. - RoQ muxer, RoQ audio encoder
  338. - Renderware TXD demuxer and decoder
  339. - extern C declarations for C++ removed from headers
  340. - sws_flags command line option
  341. - codebook generator
  342. - RoQ video encoder
  343. - QTRLE encoder
  344. - OS/2 support removed and restored again
  345. - AC-3 decoder
  346. - NUT muxer
  347. - additional SPARC (VIS) optimizations
  348. - Matroska muxer
  349. - slice-based parallel H.264 decoding
  350. - Monkey's Audio demuxer and decoder
  351. - AMV audio and video decoder
  352. - DNxHD encoder
  353. - H.264 PAFF decoding
  354. - Nellymoser ASAO decoder
  355. - Beam Software SIFF demuxer and decoder
  356. - libvorbis Vorbis decoding removed in favor of native decoder
  357. - IntraX8 (J-Frame) subdecoder for WMV2 and VC-1
  358. - Ogg (Theora, Vorbis and FLAC) muxer
  359. - The "device" muxers and demuxers are now in a new libavdevice library
  360. - PC Paintbrush PCX decoder
  361. - Sun Rasterfile decoder
  362. - TechnoTrend PVA demuxer
  363. - Linux Media Labs MPEG-4 (LMLM4) demuxer
  364. - AVM2 (Flash 9) SWF muxer
  365. - QT variant of IMA ADPCM encoder
  366. - VFW grabber
  367. - iPod/iPhone compatible mp4 muxer
  368. - Mimic decoder
  369. - MSN TCP Webcam stream demuxer
  370. - RL2 demuxer / decoder
  371. - IFF demuxer
  372. - 8SVX audio decoder
  373. - non-recursive Makefiles
  374. - BFI demuxer
  375. - MAXIS EA XA (.xa) demuxer / decoder
  376. - BFI video decoder
  377. - OMA demuxer
  378. - MLP/TrueHD decoder
  379. - Electronic Arts CMV decoder
  380. - Motion Pixels Video decoder
  381. - Motion Pixels MVI demuxer
  382. - removed animated GIF decoder/demuxer
  383. - D-Cinema audio muxer
  384. - Electronic Arts TGV decoder
  385. - Apple Lossless Audio Codec (ALAC) encoder
  386. - AAC decoder
  387. - floating point PCM encoder/decoder
  388. - MXF muxer
  389. - DV100 AKA DVCPRO HD decoder and demuxer
  390. - E-AC-3 support added to AC-3 decoder
  391. - Nellymoser ASAO encoder
  392. - ASS and SSA demuxer and muxer
  393. - liba52 wrapper removed
  394. - SVQ3 watermark decoding support
  395. - Speex decoding via libspeex
  396. - Electronic Arts TGQ decoder
  397. - RV40 decoder
  398. - QCELP / PureVoice decoder
  399. - RV30 decoder
  400. - hybrid WavPack support
  401. - R3D REDCODE demuxer
  402. - ALSA support for playback and record
  403. - Electronic Arts TQI decoder
  404. - OpenJPEG based JPEG 2000 decoder
  405. - NC (NC4600) camera file demuxer
  406. - Gopher client support
  407. - MXF D-10 muxer
  408. - generic metadata API
  409. - flash ScreenVideo2 encoder
  410. version 0.4.9-pre1:
  411. - DV encoder, DV muxer
  412. - Microsoft RLE video decoder
  413. - Microsoft Video-1 decoder
  414. - Apple Animation (RLE) decoder
  415. - Apple Graphics (SMC) decoder
  416. - Apple Video (RPZA) decoder
  417. - Cinepak decoder
  418. - Sega FILM (CPK) file demuxer
  419. - Westwood multimedia support (VQA & AUD files)
  420. - Id Quake II CIN playback support
  421. - 8BPS video decoder
  422. - FLIC playback support
  423. - RealVideo 2.0 (RV20) decoder
  424. - Duck TrueMotion v1 (DUCK) video decoder
  425. - Sierra VMD demuxer and video decoder
  426. - MSZH and ZLIB decoder support
  427. - SVQ1 video encoder
  428. - AMR-WB support
  429. - PPC optimizations
  430. - rate distortion optimal cbp support
  431. - rate distorted optimal ac prediction for MPEG-4
  432. - rate distorted optimal lambda->qp support
  433. - AAC encoding with libfaac
  434. - Sunplus JPEG codec (SP5X) support
  435. - use Lagrange multipler instead of QP for ratecontrol
  436. - Theora/VP3 decoding support
  437. - XA and ADX ADPCM codecs
  438. - export MPEG-2 active display area / pan scan
  439. - Add support for configuring with IBM XLC
  440. - floating point AAN DCT
  441. - initial support for zygo video (not complete)
  442. - RGB ffv1 support
  443. - new audio/video parser API
  444. - av_log() system
  445. - av_read_frame() and av_seek_frame() support
  446. - missing last frame fixes
  447. - seek by mouse in ffplay
  448. - noise reduction of DCT coefficients
  449. - H.263 OBMC & 4MV support
  450. - H.263 alternative inter vlc support
  451. - H.263 loop filter
  452. - H.263 slice structured mode
  453. - interlaced DCT support for MPEG-2 encoding
  454. - stuffing to stay above min_bitrate
  455. - MB type & QP visualization
  456. - frame stepping for ffplay
  457. - interlaced motion estimation
  458. - alternate scantable support
  459. - SVCD scan offset support
  460. - closed GOP support
  461. - SSE2 FDCT
  462. - quantizer noise shaping
  463. - G.726 ADPCM audio codec
  464. - MS ADPCM encoding
  465. - multithreaded/SMP motion estimation
  466. - multithreaded/SMP encoding for MPEG-1/MPEG-2/MPEG-4/H.263
  467. - multithreaded/SMP decoding for MPEG-2
  468. - FLAC decoder
  469. - Metrowerks CodeWarrior suppport
  470. - H.263+ custom pcf support
  471. - nicer output for 'ffmpeg -formats'
  472. - Matroska demuxer
  473. - SGI image format, encoding and decoding
  474. - H.264 loop filter support
  475. - H.264 CABAC support
  476. - nicer looking arrows for the motion vector visualization
  477. - improved VCD support
  478. - audio timestamp drift compensation
  479. - MPEG-2 YUV 422/444 support
  480. - polyphase kaiser windowed sinc and blackman nuttall windowed sinc audio resample
  481. - better image scaling
  482. - H.261 support
  483. - correctly interleave packets during encoding
  484. - VIS optimized motion compensation
  485. - intra_dc_precision>0 encoding support
  486. - support reuse of motion vectors/MB types/field select values of the source video
  487. - more accurate deblock filter
  488. - padding support
  489. - many optimizations and bugfixes
  490. - FunCom ISS audio file demuxer and according ADPCM decoding
  491. version 0.4.8:
  492. - MPEG-2 video encoding (Michael)
  493. - Id RoQ playback subsystem (Mike Melanson and Tim Ferguson)
  494. - Wing Commander III Movie (.mve) file playback subsystem (Mike Melanson
  495. and Mario Brito)
  496. - Xan DPCM audio decoder (Mario Brito)
  497. - Interplay MVE playback subsystem (Mike Melanson)
  498. - Duck DK3 and DK4 ADPCM audio decoders (Mike Melanson)
  499. version 0.4.7:
  500. - RealAudio 1.0 (14_4) and 2.0 (28_8) native decoders. Author unknown, code from mplayerhq
  501. (originally from public domain player for Amiga at http://www.honeypot.net/audio)
  502. - current version now also compiles with older GCC (Fabrice)
  503. - 4X multimedia playback system including 4xm file demuxer (Mike
  504. Melanson), and 4X video and audio codecs (Michael)
  505. - Creative YUV (CYUV) decoder (Mike Melanson)
  506. - FFV1 codec (our very simple lossless intra only codec, compresses much better
  507. than HuffYUV) (Michael)
  508. - ASV1 (Asus), H.264, Intel indeo3 codecs have been added (various)
  509. - tiny PNG encoder and decoder, tiny GIF decoder, PAM decoder (PPM with
  510. alpha support), JPEG YUV colorspace support. (Fabrice Bellard)
  511. - ffplay has been replaced with a newer version which uses SDL (optionally)
  512. for multiplatform support (Fabrice)
  513. - Sorenson Version 3 codec (SVQ3) support has been added (decoding only) - donated
  514. by anonymous
  515. - AMR format has been added (Johannes Carlsson)
  516. - 3GP support has been added (Johannes Carlsson)
  517. - VP3 codec has been added (Mike Melanson)
  518. - more MPEG-1/2 fixes
  519. - better multiplatform support, MS Visual Studio fixes (various)
  520. - AltiVec optimizations (Magnus Damn and others)
  521. - SH4 processor support has been added (BERO)
  522. - new public interfaces (avcodec_get_pix_fmt) (Roman Shaposhnick)
  523. - VOB streaming support (Brian Foley)
  524. - better MP3 autodetection (Andriy Rysin)
  525. - qpel encoding (Michael)
  526. - 4mv+b frames encoding finally fixed (Michael)
  527. - chroma ME (Michael)
  528. - 5 comparison functions for ME (Michael)
  529. - B-frame encoding speedup (Michael)
  530. - WMV2 codec (unfinished - Michael)
  531. - user specified diamond size for EPZS (Michael)
  532. - Playstation STR playback subsystem, still experimental (Mike and Michael)
  533. - ASV2 codec (Michael)
  534. - CLJR decoder (Alex)
  535. .. And lots more new enhancements and fixes.
  536. version 0.4.6:
  537. - completely new integer only MPEG audio layer 1/2/3 decoder rewritten
  538. from scratch
  539. - Recoded DCT and motion vector search with gcc (no longer depends on nasm)
  540. - fix quantization bug in AC3 encoder
  541. - added PCM codecs and format. Corrected WAV/AVI/ASF PCM issues
  542. - added prototype ffplay program
  543. - added GOB header parsing on H.263/H.263+ decoder (Juanjo)
  544. - bug fix on MCBPC tables of H.263 (Juanjo)
  545. - bug fix on DC coefficients of H.263 (Juanjo)
  546. - added Advanced Prediction Mode on H.263/H.263+ decoder (Juanjo)
  547. - now we can decode H.263 streams found in QuickTime files (Juanjo)
  548. - now we can decode H.263 streams found in VIVO v1 files(Juanjo)
  549. - preliminary RTP "friendly" mode for H.263/H.263+ coding. (Juanjo)
  550. - added GOB header for H.263/H.263+ coding on RTP mode (Juanjo)
  551. - now H.263 picture size is returned on the first decoded frame (Juanjo)
  552. - added first regression tests
  553. - added MPEG-2 TS demuxer
  554. - new demux API for libav
  555. - more accurate and faster IDCT (Michael)
  556. - faster and entropy-controlled motion search (Michael)
  557. - two pass video encoding (Michael)
  558. - new video rate control (Michael)
  559. - added MSMPEG4V1, MSMPEGV2 and WMV1 support (Michael)
  560. - great performance improvement of video encoders and decoders (Michael)
  561. - new and faster bit readers and vlc parsers (Michael)
  562. - high quality encoding mode: tries all macroblock/VLC types (Michael)
  563. - added DV video decoder
  564. - preliminary RTP/RTSP support in ffserver and libavformat
  565. - H.263+ AIC decoding/encoding support (Juanjo)
  566. - VCD MPEG-PS mode (Juanjo)
  567. - PSNR stuff (Juanjo)
  568. - simple stats output (Juanjo)
  569. - 16-bit and 15-bit RGB/BGR/GBR support (Bisqwit)
  570. version 0.4.5:
  571. - some header fixes (Zdenek Kabelac <kabi at informatics.muni.cz>)
  572. - many MMX optimizations (Nick Kurshev <nickols_k at mail.ru>)
  573. - added configure system (actually a small shell script)
  574. - added MPEG audio layer 1/2/3 decoding using LGPL'ed mpglib by
  575. Michael Hipp (temporary solution - waiting for integer only
  576. decoder)
  577. - fixed VIDIOCSYNC interrupt
  578. - added Intel H.263 decoding support ('I263' AVI fourCC)
  579. - added Real Video 1.0 decoding (needs further testing)
  580. - simplified image formats again. Added PGM format (=grey
  581. pgm). Renamed old PGM to PGMYUV.
  582. - fixed msmpeg4 slice issues (tell me if you still find problems)
  583. - fixed OpenDivX bugs with newer versions (added VOL header decoding)
  584. - added support for MPlayer interface
  585. - added macroblock skip optimization
  586. - added MJPEG decoder
  587. - added mmx/mmxext IDCT from libmpeg2
  588. - added pgmyuvpipe, ppm, and ppm_pipe formats (original patch by Celer
  589. <celer at shell.scrypt.net>)
  590. - added pixel format conversion layer (e.g. for MJPEG or PPM)
  591. - added deinterlacing option
  592. - MPEG-1/2 fixes
  593. - MPEG-4 vol header fixes (Jonathan Marsden <snmjbm at pacbell.net>)
  594. - ARM optimizations (Lionel Ulmer <lionel.ulmer at free.fr>).
  595. - Windows porting of file converter
  596. - added MJPEG raw format (input/ouput)
  597. - added JPEG image format support (input/output)
  598. version 0.4.4:
  599. - fixed some std header definitions (Bjorn Lindgren
  600. <bjorn.e.lindgren at telia.com>).
  601. - added MPEG demuxer (MPEG-1 and 2 compatible).
  602. - added ASF demuxer
  603. - added prototype RM demuxer
  604. - added AC3 decoding (done with libac3 by Aaron Holtzman)
  605. - added decoding codec parameter guessing (.e.g. for MPEG, because the
  606. header does not include them)
  607. - fixed header generation in MPEG-1, AVI and ASF muxer: wmplayer can now
  608. play them (only tested video)
  609. - fixed H.263 white bug
  610. - fixed phase rounding in img resample filter
  611. - add MMX code for polyphase img resample filter
  612. - added CPU autodetection
  613. - added generic title/author/copyright/comment string handling (ASF and RM
  614. use them)
  615. - added SWF demux to extract MP3 track (not usable yet because no MP3
  616. decoder)
  617. - added fractional frame rate support
  618. - codecs are no longer searched by read_header() (should fix ffserver
  619. segfault)
  620. version 0.4.3:
  621. - BGR24 patch (initial patch by Jeroen Vreeken <pe1rxq at amsat.org>)
  622. - fixed raw yuv output
  623. - added motion rounding support in MPEG-4
  624. - fixed motion bug rounding in MSMPEG4
  625. - added B-frame handling in video core
  626. - added full MPEG-1 decoding support
  627. - added partial (frame only) MPEG-2 support
  628. - changed the FOURCC code for H.263 to "U263" to be able to see the
  629. +AVI/H.263 file with the UB Video H.263+ decoder. MPlayer works with
  630. this +codec ;) (JuanJo).
  631. - Halfpel motion estimation after MB type selection (JuanJo)
  632. - added pgm and .Y.U.V output format
  633. - suppressed 'img:' protocol. Simply use: /tmp/test%d.[pgm|Y] as input or
  634. output.
  635. - added pgmpipe I/O format (original patch from Martin Aumueller
  636. <lists at reserv.at>, but changed completely since we use a format
  637. instead of a protocol)
  638. version 0.4.2:
  639. - added H.263/MPEG-4/MSMPEG4 decoding support. MPEG-4 decoding support
  640. (for OpenDivX) is almost complete: 8x8 MVs and rounding are
  641. missing. MSMPEG4 support is complete.
  642. - added prototype MPEG-1 decoder. Only I- and P-frames handled yet (it
  643. can decode ffmpeg MPEGs :-)).
  644. - added libavcodec API documentation (see apiexample.c).
  645. - fixed image polyphase bug (the bottom of some images could be
  646. greenish)
  647. - added support for non clipped motion vectors (decoding only)
  648. and image sizes non-multiple of 16
  649. - added support for AC prediction (decoding only)
  650. - added file overwrite confirmation (can be disabled with -y)
  651. - added custom size picture to H.263 using H.263+ (Juanjo)
  652. version 0.4.1:
  653. - added MSMPEG4 (aka DivX) compatible encoder. Changed default codec
  654. of AVI and ASF to DIV3.
  655. - added -me option to set motion estimation method
  656. (default=log). suppressed redundant -hq option.
  657. - added options -acodec and -vcodec to force a given codec (useful for
  658. AVI for example)
  659. - fixed -an option
  660. - improved dct_quantize speed
  661. - factorized some motion estimation code
  662. version 0.4.0:
  663. - removing grab code from ffserver and moved it to ffmpeg. Added
  664. multistream support to ffmpeg.
  665. - added timeshifting support for live feeds (option ?date=xxx in the
  666. URL)
  667. - added high quality image resize code with polyphase filter (need
  668. mmx/see optimization). Enable multiple image size support in ffserver.
  669. - added multi live feed support in ffserver
  670. - suppressed master feature from ffserver (it should be done with an
  671. external program which opens the .ffm url and writes it to another
  672. ffserver)
  673. - added preliminary support for video stream parsing (WAV and AVI half
  674. done). Added proper support for audio/video file conversion in
  675. ffmpeg.
  676. - added preliminary support for video file sending from ffserver
  677. - redesigning I/O subsystem: now using URL based input and output
  678. (see avio.h)
  679. - added WAV format support
  680. - added "tty user interface" to ffmpeg to stop grabbing gracefully
  681. - added MMX/SSE optimizations to SAD (Sums of Absolutes Differences)
  682. (Juan J. Sierralta P. a.k.a. "Juanjo" <juanjo at atmlab.utfsm.cl>)
  683. - added MMX DCT from mpeg2_movie 1.5 (Juanjo)
  684. - added new motion estimation algorithms, log and phods (Juanjo)
  685. - changed directories: libav for format handling, libavcodec for
  686. codecs
  687. version 0.3.4:
  688. - added stereo in MPEG audio encoder
  689. version 0.3.3:
  690. - added 'high quality' mode which use motion vectors. It can be used in
  691. real time at low resolution.
  692. - fixed rounding problems which caused quality problems at high
  693. bitrates and large GOP size
  694. version 0.3.2: small fixes
  695. - ASF fixes
  696. - put_seek bug fix
  697. version 0.3.1: added avi/divx support
  698. - added AVI support
  699. - added MPEG-4 codec compatible with OpenDivX. It is based on the H.263 codec
  700. - added sound for flash format (not tested)
  701. version 0.3: initial public release