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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. - nvenc encoder
  5. - 10bit spp filter
  6. - colorlevels filter
  7. - RIFX format for *.wav files
  8. - RTP/mpegts muxer
  9. - non continuous cache protocol support
  10. - tblend filter
  11. - cropdetect support for non 8bpp, absolute (if limit >= 1) and relative (if limit < 1.0) threshold
  12. - Camellia symmetric block cipher
  13. - OpenH264 encoder wrapper
  14. - VOC seeking support
  15. - Closed caption Decoder
  16. - fspp, uspp, pp7 MPlayer postprocessing filters ported to native filters
  17. - showpalette filter
  18. - Twofish symmetric block cipher
  19. - Support DNx100 (960x720@8)
  20. - eq2 filter ported from libmpcodecs as eq filter
  21. - removed libmpcodecs
  22. - Changed default DNxHD colour range in QuickTime .mov derivatives to mpeg range
  23. - ported softpulldown filter from libmpcodecs as repeatfields filter
  24. - dcshift filter
  25. - RTP parser for loss tolerant payload format for MP3 audio (RFC 5219)
  26. - RTP parser for AC3 payload format (RFC 4184)
  27. - palettegen and paletteuse filters
  28. - VP9 RTP payload format (draft 0) experimental depacketizer
  29. - DV RTP payload format (RFC 6469) depacketizer
  30. - DXVA2-accelerated HEVC decoding
  31. - AAC ELD 480 decoding
  32. version 2.5:
  33. - HEVC/H.265 RTP payload format (draft v6) packetizer
  34. - SUP/PGS subtitle demuxer
  35. - ffprobe -show_pixel_formats option
  36. - CAST128 symmetric block cipher, ECB mode
  37. - STL subtitle demuxer and decoder
  38. - libutvideo YUV 4:2:2 10bit support
  39. - XCB-based screen-grabber
  40. - UDP-Lite support (RFC 3828)
  41. - xBR scaling filter
  42. - AVFoundation screen capturing support
  43. - ffserver supports codec private options
  44. - creating DASH compatible fragmented MP4, MPEG-DASH segmenting muxer
  45. - WebP muxer with animated WebP support
  46. - zygoaudio decoding support
  47. - APNG demuxer
  48. - postproc visualization support
  49. version 2.4:
  50. - Icecast protocol
  51. - ported lenscorrection filter from frei0r filter
  52. - large optimizations in dctdnoiz to make it usable
  53. - ICY metadata are now requested by default with the HTTP protocol
  54. - support for using metadata in stream specifiers in fftools
  55. - LZMA compression support in TIFF decoder
  56. - H.261 RTP payload format (RFC 4587) depacketizer and experimental packetizer
  57. - HEVC/H.265 RTP payload format (draft v6) depacketizer
  58. - added codecview filter to visualize information exported by some codecs
  59. - Matroska 3D support thorugh side data
  60. - HTML generation using texi2html is deprecated in favor of makeinfo/texi2any
  61. - silenceremove filter
  62. version 2.3:
  63. - AC3 fixed-point decoding
  64. - shuffleplanes filter
  65. - subfile protocol
  66. - Phantom Cine demuxer
  67. - replaygain data export
  68. - VP7 video decoder
  69. - Alias PIX image encoder and decoder
  70. - Improvements to the BRender PIX image decoder
  71. - Improvements to the XBM decoder
  72. - QTKit input device
  73. - improvements to OpenEXR image decoder
  74. - support decoding 16-bit RLE SGI images
  75. - GDI screen grabbing for Windows
  76. - alternative rendition support for HTTP Live Streaming
  77. - AVFoundation input device
  78. - Direct Stream Digital (DSD) decoder
  79. - Magic Lantern Video (MLV) demuxer
  80. - On2 AVC (Audio for Video) decoder
  81. - support for decoding through DXVA2 in ffmpeg
  82. - libbs2b-based stereo-to-binaural audio filter
  83. - libx264 reference frames count limiting depending on level
  84. - native Opus decoder
  85. - display matrix export and rotation API
  86. - WebVTT encoder
  87. - showcqt multimedia filter
  88. - zoompan filter
  89. - signalstats filter
  90. - hqx filter (hq2x, hq3x, hq4x)
  91. - flanger filter
  92. - Image format auto-detection
  93. - LRC demuxer and muxer
  94. - Samba protocol (via libsmbclient)
  95. - WebM DASH Manifest muxer
  96. - libfribidi support in drawtext
  97. version 2.2:
  98. - HNM version 4 demuxer and video decoder
  99. - Live HDS muxer
  100. - setsar/setdar filters now support variables in ratio expressions
  101. - elbg filter
  102. - string validation in ffprobe
  103. - support for decoding through VDPAU in ffmpeg (the -hwaccel option)
  104. - complete Voxware MetaSound decoder
  105. - remove mp3_header_compress bitstream filter
  106. - Windows resource files for shared libraries
  107. - aeval filter
  108. - stereoscopic 3d metadata handling
  109. - WebP encoding via libwebp
  110. - ATRAC3+ decoder
  111. - VP8 in Ogg demuxing
  112. - side & metadata support in NUT
  113. - framepack filter
  114. - XYZ12 rawvideo support in NUT
  115. - Exif metadata support in WebP decoder
  116. - OpenGL device
  117. - Use metadata_header_padding to control padding in ID3 tags (currently used in
  118. MP3, AIFF, and OMA files), FLAC header, and the AVI "junk" block.
  119. - Mirillis FIC video decoder
  120. - Support DNx444
  121. - libx265 encoder
  122. - dejudder filter
  123. - Autodetect VDA like all other hardware accelerations
  124. - aliases and defaults for Ogg subtypes (opus, spx)
  125. version 2.1:
  126. - aecho filter
  127. - perspective filter ported from libmpcodecs
  128. - ffprobe -show_programs option
  129. - compand filter
  130. - RTMP seek support
  131. - when transcoding with ffmpeg (i.e. not streamcopying), -ss is now accurate
  132. even when used as an input option. Previous behavior can be restored with
  133. the -noaccurate_seek option.
  134. - ffmpeg -t option can now be used for inputs, to limit the duration of
  135. data read from an input file
  136. - incomplete Voxware MetaSound decoder
  137. - read EXIF metadata from JPEG
  138. - DVB teletext decoder
  139. - phase filter ported from libmpcodecs
  140. - w3fdif filter
  141. - Opus support in Matroska
  142. - FFV1 version 1.3 is stable and no longer experimental
  143. - FFV1: YUVA(444,422,420) 9, 10 and 16 bit support
  144. - changed DTS stream id in lavf mpeg ps muxer from 0x8a to 0x88, to be
  145. more consistent with other muxers.
  146. - adelay filter
  147. - pullup filter ported from libmpcodecs
  148. - ffprobe -read_intervals option
  149. - Lossless and alpha support for WebP decoder
  150. - Error Resilient AAC syntax (ER AAC LC) decoding
  151. - Low Delay AAC (ER AAC LD) decoding
  152. - mux chapters in ASF files
  153. - SFTP protocol (via libssh)
  154. - libx264: add ability to encode in YUVJ422P and YUVJ444P
  155. - Fraps: use BT.709 colorspace by default for yuv, as reference fraps decoder does
  156. - make decoding alpha optional for prores, ffv1 and vp6 by setting
  157. the skip_alpha flag.
  158. - ladspa wrapper filter
  159. - native VP9 decoder
  160. - dpx parser
  161. - max_error_rate parameter in ffmpeg
  162. - PulseAudio output device
  163. - ReplayGain scanner
  164. - Enhanced Low Delay AAC (ER AAC ELD) decoding (no LD SBR support)
  165. - Linux framebuffer output device
  166. - HEVC decoder
  167. - raw HEVC, HEVC in MOV/MP4, HEVC in Matroska, HEVC in MPEG-TS demuxing
  168. - mergeplanes filter
  169. version 2.0:
  170. - curves filter
  171. - reference-counting for AVFrame and AVPacket data
  172. - ffmpeg now fails when input options are used for output file
  173. or vice versa
  174. - support for Monkey's Audio versions from 3.93
  175. - perms and aperms filters
  176. - audio filtering support in ffplay
  177. - 10% faster aac encoding on x86 and MIPS
  178. - sine audio filter source
  179. - WebP demuxing and decoding support
  180. - ffmpeg options -filter_script and -filter_complex_script, which allow a
  181. filtergraph description to be read from a file
  182. - OpenCL support
  183. - audio phaser filter
  184. - separatefields filter
  185. - libquvi demuxer
  186. - uniform options syntax across all filters
  187. - telecine filter
  188. - interlace filter
  189. - smptehdbars source
  190. - inverse telecine filters (fieldmatch and decimate)
  191. - colorbalance filter
  192. - colorchannelmixer filter
  193. - The matroska demuxer can now output proper verbatim ASS packets. It will
  194. become the default at the next libavformat major bump.
  195. - decent native animated GIF encoding
  196. - asetrate filter
  197. - interleave filter
  198. - timeline editing with filters
  199. - vidstabdetect and vidstabtransform filters for video stabilization using
  200. the vid.stab library
  201. - astats filter
  202. - trim and atrim filters
  203. - ffmpeg -t and -ss (output-only) options are now sample-accurate when
  204. transcoding audio
  205. - Matroska muxer can now put the index at the beginning of the file.
  206. - extractplanes filter
  207. - avectorscope filter
  208. - ADPCM DTK decoder
  209. - ADP demuxer
  210. - RSD demuxer
  211. - RedSpark demuxer
  212. - ADPCM IMA Radical decoder
  213. - zmq filters
  214. - DCT denoiser filter (dctdnoiz)
  215. - Wavelet denoiser filter ported from libmpcodecs as owdenoise (formerly "ow")
  216. - Apple Intermediate Codec decoder
  217. - Escape 130 video decoder
  218. - FTP protocol support
  219. - V4L2 output device
  220. - 3D LUT filter (lut3d)
  221. - SMPTE 302M audio encoder
  222. - support for slice multithreading in libavfilter
  223. - Hald CLUT support (generation and filtering)
  224. - VC-1 interlaced B-frame support
  225. - support for WavPack muxing (raw and in Matroska)
  226. - XVideo output device
  227. - vignette filter
  228. - True Audio (TTA) encoder
  229. - Go2Webinar decoder
  230. - mcdeint filter ported from libmpcodecs
  231. - sab filter ported from libmpcodecs
  232. - ffprobe -show_chapters option
  233. - WavPack encoding through libwavpack
  234. - rotate filter
  235. - spp filter ported from libmpcodecs
  236. - libgme support
  237. - psnr filter
  238. version 1.2:
  239. - VDPAU hardware acceleration through normal hwaccel
  240. - SRTP support
  241. - Error diffusion dither in Swscale
  242. - Chained Ogg support
  243. - Theora Midstream reconfiguration support
  244. - EVRC decoder
  245. - audio fade filter
  246. - filtering audio with unknown channel layout
  247. - allpass, bass, bandpass, bandreject, biquad, equalizer, highpass, lowpass
  248. and treble audio filter
  249. - improved showspectrum filter, with multichannel support and sox-like colors
  250. - histogram filter
  251. - tee muxer
  252. - il filter ported from libmpcodecs
  253. - support ID3v2 tags in ASF files
  254. - encrypted TTA stream decoding support
  255. - RF64 support in WAV muxer
  256. - noise filter ported from libmpcodecs
  257. - Subtitles character encoding conversion
  258. - blend filter
  259. - stereo3d filter ported from libmpcodecs
  260. version 1.1:
  261. - stream disposition information printing in ffprobe
  262. - filter for loudness analysis following EBU R128
  263. - Opus encoder using libopus
  264. - ffprobe -select_streams option
  265. - Pinnacle TARGA CineWave YUV16 decoder
  266. - TAK demuxer, decoder and parser
  267. - DTS-HD demuxer
  268. - remove -same_quant, it hasn't worked for years
  269. - FFM2 support
  270. - X-Face image encoder and decoder
  271. - 24-bit FLAC encoding
  272. - multi-channel ALAC encoding up to 7.1
  273. - metadata (INFO tag) support in WAV muxer
  274. - subtitles raw text decoder
  275. - support for building DLLs using MSVC
  276. - LVF demuxer
  277. - ffescape tool
  278. - metadata (info chunk) support in CAF muxer
  279. - field filter ported from libmpcodecs
  280. - AVR demuxer
  281. - geq filter ported from libmpcodecs
  282. - remove ffserver daemon mode
  283. - AST muxer/demuxer
  284. - new expansion syntax for drawtext
  285. - BRender PIX image decoder
  286. - ffprobe -show_entries option
  287. - ffprobe -sections option
  288. - ADPCM IMA Dialogic decoder
  289. - BRSTM demuxer
  290. - animated GIF decoder and demuxer
  291. - PVF demuxer
  292. - subtitles filter
  293. - IRCAM muxer/demuxer
  294. - Paris Audio File demuxer
  295. - Virtual concatenation demuxer
  296. - VobSub demuxer
  297. - JSON captions for TED talks decoding support
  298. - SOX Resampler support in libswresample
  299. - aselect filter
  300. - SGI RLE 8-bit / Silicon Graphics RLE 8-bit video decoder
  301. - Silicon Graphics Motion Video Compressor 1 & 2 decoder
  302. - Silicon Graphics Movie demuxer
  303. - apad filter
  304. - Resolution & pixel format change support with multithreading for H.264
  305. - documentation split into per-component manuals
  306. - pp (postproc) filter ported from MPlayer
  307. - NIST Sphere demuxer
  308. - MPL2, VPlayer, MPlayer, AQTitle, PJS and SubViewer v1 subtitles demuxers and decoders
  309. - Sony Wave64 muxer
  310. - adobe and limelight publisher authentication in RTMP
  311. - data: URI scheme
  312. - support building on the Plan 9 operating system
  313. - kerndeint filter ported from MPlayer
  314. - histeq filter ported from VirtualDub
  315. - Megalux Frame demuxer
  316. - 012v decoder
  317. - Improved AVC Intra decoding support
  318. version 1.0:
  319. - INI and flat output in ffprobe
  320. - Scene detection in libavfilter
  321. - Indeo Audio decoder
  322. - channelsplit audio filter
  323. - setnsamples audio filter
  324. - atempo filter
  325. - ffprobe -show_data option
  326. - RTMPT protocol support
  327. - iLBC encoding/decoding via libilbc
  328. - Microsoft Screen 1 decoder
  329. - join audio filter
  330. - audio channel mapping filter
  331. - Microsoft ATC Screen decoder
  332. - RTSP listen mode
  333. - TechSmith Screen Codec 2 decoder
  334. - AAC encoding via libfdk-aac
  335. - Microsoft Expression Encoder Screen decoder
  336. - RTMPS protocol support
  337. - RTMPTS protocol support
  338. - RTMPE protocol support
  339. - RTMPTE protocol support
  340. - showwaves and showspectrum filter
  341. - LucasArts SMUSH SANM playback support
  342. - LucasArts SMUSH VIMA audio decoder (ADPCM)
  343. - LucasArts SMUSH demuxer
  344. - SAMI, RealText and SubViewer demuxers and decoders
  345. - Heart Of Darkness PAF playback support
  346. - iec61883 device
  347. - asettb filter
  348. - new option: -progress
  349. - 3GPP Timed Text encoder/decoder
  350. - GeoTIFF decoder support
  351. - ffmpeg -(no)stdin option
  352. - Opus decoder using libopus
  353. - caca output device using libcaca
  354. - alphaextract and alphamerge filters
  355. - concat filter
  356. - flite filter
  357. - Canopus Lossless Codec decoder
  358. - bitmap subtitles in filters (experimental and temporary)
  359. - MP2 encoding via TwoLAME
  360. - bmp parser
  361. - smptebars source
  362. - asetpts filter
  363. - hue filter
  364. - ICO muxer
  365. - SubRip encoder and decoder without embedded timing
  366. - edge detection filter
  367. - framestep filter
  368. - ffmpeg -shortest option is now per-output file
  369. -pass and -passlogfile are now per-output stream
  370. - volume measurement filter
  371. - Ut Video encoder
  372. - Microsoft Screen 2 decoder
  373. - smartblur filter ported from MPlayer
  374. - CPiA decoder
  375. - decimate filter ported from MPlayer
  376. - RTP depacketization of JPEG
  377. - Smooth Streaming live segmenter muxer
  378. - F4V muxer
  379. - sendcmd and asendcmd filters
  380. - WebVTT demuxer and decoder (simple tags supported)
  381. - RTP packetization of JPEG
  382. - faststart option in the MOV/MP4 muxer
  383. - support for building with MSVC
  384. version 0.11:
  385. - Fixes: CVE-2012-2772, CVE-2012-2774, CVE-2012-2775, CVE-2012-2776, CVE-2012-2777,
  386. CVE-2012-2779, CVE-2012-2782, CVE-2012-2783, CVE-2012-2784, CVE-2012-2785,
  387. CVE-2012-2786, CVE-2012-2787, CVE-2012-2788, CVE-2012-2789, CVE-2012-2790,
  388. CVE-2012-2791, CVE-2012-2792, CVE-2012-2793, CVE-2012-2794, CVE-2012-2795,
  389. CVE-2012-2796, CVE-2012-2797, CVE-2012-2798, CVE-2012-2799, CVE-2012-2800,
  390. CVE-2012-2801, CVE-2012-2802, CVE-2012-2803, CVE-2012-2804,
  391. - v408 Quicktime and Microsoft AYUV Uncompressed 4:4:4:4 encoder and decoder
  392. - setfield filter
  393. - CDXL demuxer and decoder
  394. - Apple ProRes encoder
  395. - ffprobe -count_packets and -count_frames options
  396. - Sun Rasterfile Encoder
  397. - ID3v2 attached pictures reading and writing
  398. - WMA Lossless decoder
  399. - bluray protocol
  400. - blackdetect filter
  401. - libutvideo encoder wrapper (--enable-libutvideo)
  402. - swapuv filter
  403. - bbox filter
  404. - XBM encoder and decoder
  405. - RealAudio Lossless decoder
  406. - ZeroCodec decoder
  407. - tile video filter
  408. - Metal Gear Solid: The Twin Snakes demuxer
  409. - OpenEXR image decoder
  410. - removelogo filter
  411. - drop support for ffmpeg without libavfilter
  412. - drawtext video filter: fontconfig support
  413. - ffmpeg -benchmark_all option
  414. - super2xsai filter ported from libmpcodecs
  415. - add libavresample audio conversion library for compatibility
  416. - MicroDVD decoder
  417. - Avid Meridien (AVUI) encoder and decoder
  418. - accept + prefix to -pix_fmt option to disable automatic conversions.
  419. - complete audio filtering in libavfilter and ffmpeg
  420. - add fps filter
  421. - vorbis parser
  422. - png parser
  423. - audio mix filter
  424. - ffv1: support (draft) version 1.3
  425. version 0.10:
  426. - Fixes: CVE-2011-3929, CVE-2011-3934, CVE-2011-3935, CVE-2011-3936,
  427. CVE-2011-3937, CVE-2011-3940, CVE-2011-3941, CVE-2011-3944,
  428. CVE-2011-3945, CVE-2011-3946, CVE-2011-3947, CVE-2011-3949,
  429. CVE-2011-3950, CVE-2011-3951, CVE-2011-3952
  430. - v410 Quicktime Uncompressed 4:4:4 10-bit encoder and decoder
  431. - SBaGen (SBG) binaural beats script demuxer
  432. - OpenMG Audio muxer
  433. - Timecode extraction in DV and MOV
  434. - thumbnail video filter
  435. - XML output in ffprobe
  436. - asplit audio filter
  437. - tinterlace video filter
  438. - astreamsync audio filter
  439. - amerge audio filter
  440. - ISMV (Smooth Streaming) muxer
  441. - GSM audio parser
  442. - SMJPEG muxer
  443. - XWD encoder and decoder
  444. - Automatic thread count based on detection number of (available) CPU cores
  445. - y41p Brooktree Uncompressed 4:1:1 12-bit encoder and decoder
  446. - ffprobe -show_error option
  447. - Avid 1:1 10-bit RGB Packer codec
  448. - v308 Quicktime Uncompressed 4:4:4 encoder and decoder
  449. - yuv4 libquicktime packed 4:2:0 encoder and decoder
  450. - ffprobe -show_frames option
  451. - silencedetect audio filter
  452. - ffprobe -show_program_version, -show_library_versions, -show_versions options
  453. - rv34: frame-level multi-threading
  454. - optimized iMDCT transform on x86 using SSE for for mpegaudiodec
  455. - Improved PGS subtitle decoder
  456. - dumpgraph option to lavfi device
  457. - r210 and r10k encoders
  458. - ffwavesynth decoder
  459. - aviocat tool
  460. - ffeval tool
  461. - support encoding and decoding 4-channel SGI images
  462. version 0.9:
  463. - openal input device added
  464. - boxblur filter added
  465. - BWF muxer
  466. - Flash Screen Video 2 decoder
  467. - lavfi input device added
  468. - added avconv, which is almost the same for now, except
  469. for a few incompatible changes in the options, which will hopefully make them
  470. easier to use. The changes are:
  471. * The options placement is now strictly enforced! While in theory the
  472. options for ffmpeg should be given in [input options] -i INPUT [output
  473. options] OUTPUT order, in practice it was possible to give output options
  474. before the -i and it mostly worked. Except when it didn't - the behavior was
  475. a bit inconsistent. In avconv, it is not possible to mix input and output
  476. options. All non-global options are reset after an input or output filename.
  477. * All per-file options are now truly per-file - they apply only to the next
  478. input or output file and specifying different values for different files
  479. will now work properly (notably -ss and -t options).
  480. * All per-stream options are now truly per-stream - it is possible to
  481. specify which stream(s) should a given option apply to. See the Stream
  482. specifiers section in the avconv manual for details.
  483. * In ffmpeg some options (like -newvideo/-newaudio/...) are irregular in the
  484. sense that they're specified after the output filename instead of before,
  485. like all other options. In avconv this irregularity is removed, all options
  486. apply to the next input or output file.
  487. * -newvideo/-newaudio/-newsubtitle options were removed. Not only were they
  488. irregular and highly confusing, they were also redundant. In avconv the -map
  489. option will create new streams in the output file and map input streams to
  490. them. E.g. avconv -i INPUT -map 0 OUTPUT will create an output stream for
  491. each stream in the first input file.
  492. * The -map option now has slightly different and more powerful syntax:
  493. + Colons (':') are used to separate file index/stream type/stream index
  494. instead of dots. Comma (',') is used to separate the sync stream instead
  495. of colon.. This is done for consistency with other options.
  496. + It's possible to specify stream type. E.g. -map 0:a:2 creates an
  497. output stream from the third input audio stream.
  498. + Omitting the stream index now maps all the streams of the given type,
  499. not just the first. E.g. -map 0:s creates output streams for all the
  500. subtitle streams in the first input file.
  501. + Since -map can now match multiple streams, negative mappings were
  502. introduced. Negative mappings disable some streams from an already
  503. defined map. E.g. '-map 0 -map -0:a:1' means 'create output streams for
  504. all the stream in the first input file, except for the second audio
  505. stream'.
  506. * There is a new option -c (or -codec) for choosing the decoder/encoder to
  507. use, which allows to precisely specify target stream(s) consistently with
  508. other options. E.g. -c:v lib264 sets the codec for all video streams, -c:a:0
  509. libvorbis sets the codec for the first audio stream and -c copy copies all
  510. the streams without reencoding. Old -vcodec/-acodec/-scodec options are now
  511. aliases to -c:v/a/s
  512. * It is now possible to precisely specify which stream should an AVOption
  513. apply to. E.g. -b:v:0 2M sets the bitrate for the first video stream, while
  514. -b:a 128k sets the bitrate for all audio streams. Note that the old -ab 128k
  515. syntax is deprecated and will stop working soon.
  516. * -map_chapters now takes only an input file index and applies to the next
  517. output file. This is consistent with how all the other options work.
  518. * -map_metadata now takes only an input metadata specifier and applies to
  519. the next output file. Output metadata specifier is now part of the option
  520. name, similarly to the AVOptions/map/codec feature above.
  521. * -metadata can now be used to set metadata on streams and chapters, e.g.
  522. -metadata:s:1 language=eng sets the language of the first stream to 'eng'.
  523. This made -vlang/-alang/-slang options redundant, so they were removed.
  524. * -qscale option now uses stream specifiers and applies to all streams, not
  525. just video. I.e. plain -qscale number would now apply to all streams. To get
  526. the old behavior, use -qscale:v. Also there is now a shortcut -q for -qscale
  527. and -aq is now an alias for -q:a.
  528. * -vbsf/-absf/-sbsf options were removed and replaced by a -bsf option which
  529. uses stream specifiers. Use -bsf:v/a/s instead of the old options.
  530. * -itsscale option now uses stream specifiers, so its argument is only the
  531. scale parameter.
  532. * -intra option was removed, use -g 0 for the same effect.
  533. * -psnr option was removed, use -flags +psnr for the same effect.
  534. * -vf option is now an alias to the new -filter option, which uses stream specifiers.
  535. * -vframes/-aframes/-dframes options are now aliases to the new -frames option.
  536. * -vtag/-atag/-stag options are now aliases to the new -tag option.
  537. - XMV demuxer
  538. - LOAS demuxer
  539. - ashowinfo filter added
  540. - Windows Media Image decoder
  541. - amovie source added
  542. - LATM muxer/demuxer
  543. - Speex encoder via libspeex
  544. - JSON output in ffprobe
  545. - WTV muxer
  546. - Optional C++ Support (needed for libstagefright)
  547. - H.264 Decoding on Android via Stagefright
  548. - Prores decoder
  549. - BIN/XBIN/ADF/IDF text file decoder
  550. - aconvert audio filter added
  551. - audio support to lavfi input device added
  552. - libcdio-paranoia input device for audio CD grabbing
  553. - Apple ProRes decoder
  554. - CELT in Ogg demuxing
  555. - G.723.1 demuxer and decoder
  556. - libmodplug support (--enable-libmodplug)
  557. - VC-1 interlaced decoding
  558. - libutvideo wrapper (--enable-libutvideo)
  559. - aevalsrc audio source added
  560. - Ut Video decoder
  561. - Speex encoding via libspeex
  562. - 4:2:2 H.264 decoding support
  563. - 4:2:2 and 4:4:4 H.264 encoding with libx264
  564. - Pulseaudio input device
  565. - Prores encoder
  566. - Video Decoder Acceleration (VDA) HWAccel module.
  567. - replacement Indeo 3 decoder
  568. - new ffmpeg option: -map_channel
  569. - volume audio filter added
  570. - earwax audio filter added
  571. - libv4l2 support (--enable-libv4l2)
  572. - TLS/SSL and HTTPS protocol support
  573. - AVOptions API rewritten and documented
  574. - most of CODEC_FLAG2_*, some CODEC_FLAG_* and many codec-specific fields in
  575. AVCodecContext deprecated. Codec private options should be used instead.
  576. - Properly working defaults in libx264 wrapper, support for native presets.
  577. - Encrypted OMA files support
  578. - Discworld II BMV decoding support
  579. - VBLE Decoder
  580. - OS X Video Decoder Acceleration (VDA) support
  581. - compact and csv output in ffprobe
  582. - pan audio filter
  583. - IFF Amiga Continuous Bitmap (ACBM) decoder
  584. - ass filter
  585. - CRI ADX audio format muxer and demuxer
  586. - Playstation Portable PMP format demuxer
  587. - Microsoft Windows ICO demuxer
  588. - life source
  589. - PCM format support in OMA demuxer
  590. - CLJR encoder
  591. - new option: -report
  592. - Dxtory capture format decoder
  593. - cellauto source
  594. - Simple segmenting muxer
  595. - Indeo 4 decoder
  596. - SMJPEG demuxer
  597. version 0.8:
  598. - many many things we forgot because we rather write code than changelogs
  599. - WebM support in Matroska de/muxer
  600. - low overhead Ogg muxing
  601. - MMS-TCP support
  602. - VP8 de/encoding via libvpx
  603. - Demuxer for On2's IVF format
  604. - Pictor/PC Paint decoder
  605. - HE-AAC v2 decoder
  606. - HE-AAC v2 encoding with libaacplus
  607. - libfaad2 wrapper removed
  608. - DTS-ES extension (XCh) decoding support
  609. - native VP8 decoder
  610. - RTSP tunneling over HTTP
  611. - RTP depacketization of SVQ3
  612. - -strict inofficial replaced by -strict unofficial
  613. - ffplay -exitonkeydown and -exitonmousedown options added
  614. - native GSM / GSM MS decoder
  615. - RTP depacketization of QDM2
  616. - ANSI/ASCII art playback system
  617. - Lego Mindstorms RSO de/muxer
  618. - libavcore added (and subsequently removed)
  619. - SubRip subtitle file muxer and demuxer
  620. - Chinese AVS encoding via libxavs
  621. - ffprobe -show_packets option added
  622. - RTP packetization of Theora and Vorbis
  623. - RTP depacketization of MP4A-LATM
  624. - RTP packetization and depacketization of VP8
  625. - hflip filter
  626. - Apple HTTP Live Streaming demuxer
  627. - a64 codec
  628. - MMS-HTTP support
  629. - G.722 ADPCM audio encoder/decoder
  630. - R10k video decoder
  631. - ocv_smooth filter
  632. - frei0r wrapper filter
  633. - change crop filter syntax to width:height:x:y
  634. - make the crop filter accept parametric expressions
  635. - make ffprobe accept AVFormatContext options
  636. - yadif filter
  637. - blackframe filter
  638. - Demuxer for Leitch/Harris' VR native stream format (LXF)
  639. - RTP depacketization of the X-QT QuickTime format
  640. - SAP (Session Announcement Protocol, RFC 2974) muxer and demuxer
  641. - cropdetect filter
  642. - ffmpeg -crop* options removed
  643. - transpose filter added
  644. - ffmpeg -force_key_frames option added
  645. - demuxer for receiving raw rtp:// URLs without an SDP description
  646. - single stream LATM/LOAS decoder
  647. - setpts filter added
  648. - Win64 support for optimized x86 assembly functions
  649. - MJPEG/AVI1 to JPEG/JFIF bitstream filter
  650. - ASS subtitle encoder and decoder
  651. - IEC 61937 encapsulation for E-AC-3, TrueHD, DTS-HD (for HDMI passthrough)
  652. - overlay filter added
  653. - rename aspect filter to setdar, and pixelaspect to setsar
  654. - IEC 61937 demuxer
  655. - Mobotix .mxg demuxer
  656. - frei0r source added
  657. - hqdn3d filter added
  658. - RTP depacketization of QCELP
  659. - FLAC parser added
  660. - gradfun filter added
  661. - AMR-WB decoder
  662. - replace the ocv_smooth filter with a more generic ocv filter
  663. - Windows Televison (WTV) demuxer
  664. - FFmpeg metadata format muxer and demuxer
  665. - SubRip (srt) subtitle encoder and decoder
  666. - floating-point AC-3 encoder added
  667. - Lagarith decoder
  668. - ffmpeg -copytb option added
  669. - IVF muxer added
  670. - Wing Commander IV movies decoder added
  671. - movie source added
  672. - Bink version 'b' audio and video decoder
  673. - Bitmap Brothers JV playback system
  674. - Apple HTTP Live Streaming protocol handler
  675. - sndio support for playback and record
  676. - Linux framebuffer input device added
  677. - Chronomaster DFA decoder
  678. - DPX image encoder
  679. - MicroDVD subtitle file muxer and demuxer
  680. - Playstation Portable PMP format demuxer
  681. - fieldorder video filter added
  682. - AAC encoding via libvo-aacenc
  683. - AMR-WB encoding via libvo-amrwbenc
  684. - xWMA demuxer
  685. - Mobotix MxPEG decoder
  686. - VP8 frame-multithreading
  687. - NEON optimizations for VP8
  688. - Lots of deprecated API cruft removed
  689. - fft and imdct optimizations for AVX (Sandy Bridge) processors
  690. - showinfo filter added
  691. - SMPTE 302M AES3 audio decoder
  692. - Apple Core Audio Format muxer
  693. - 9bit and 10bit per sample support in the H.264 decoder
  694. - 9bit and 10bit FFV1 encoding / decoding
  695. - split filter added
  696. - select filter added
  697. - sdl output device added
  698. - libmpcodecs video filter support (3 times as many filters than before)
  699. - mpeg2 aspect ratio dection fixed
  700. - libxvid aspect pickiness fixed
  701. - Frame multithreaded decoding
  702. - E-AC-3 audio encoder
  703. - ac3enc: add channel coupling support
  704. - floating-point sample format support to the ac3, eac3, dca, aac, and vorbis decoders.
  705. - H264/MPEG frame-level multi-threading
  706. - All av_metadata_* functions renamed to av_dict_* and moved to libavutil
  707. - 4:4:4 H.264 decoding support
  708. - 10-bit H.264 optimizations for x86
  709. - lut, lutrgb, and lutyuv filters added
  710. - buffersink libavfilter sink added
  711. - Bump libswscale for recently reported ABI break
  712. - New J2K encoder (via OpenJPEG)
  713. version 0.7:
  714. - all the changes for 0.8, but keeping API/ABI compatibility with the 0.6 release
  715. version 0.6:
  716. - PB-frame decoding for H.263
  717. - deprecated vhook subsystem removed
  718. - deprecated old scaler removed
  719. - VQF demuxer
  720. - Alpha channel scaler
  721. - PCX encoder
  722. - RTP packetization of H.263
  723. - RTP packetization of AMR
  724. - RTP depacketization of Vorbis
  725. - CorePNG decoding support
  726. - Cook multichannel decoding support
  727. - introduced avlanguage helpers in libavformat
  728. - 8088flex TMV demuxer and decoder
  729. - per-stream language-tags extraction in asfdec
  730. - V210 decoder and encoder
  731. - remaining GPL parts in AC-3 decoder converted to LGPL
  732. - QCP demuxer
  733. - SoX native format muxer and demuxer
  734. - AMR-NB decoding/encoding, AMR-WB decoding via OpenCORE libraries
  735. - DPX image decoder
  736. - Electronic Arts Madcow decoder
  737. - DivX (XSUB) subtitle encoder
  738. - nonfree libamr support for AMR-NB/WB decoding/encoding removed
  739. - experimental AAC encoder
  740. - RTP depacketization of ASF and RTSP from WMS servers
  741. - RTMP support in libavformat
  742. - noX handling for OPT_BOOL X options
  743. - Wave64 demuxer
  744. - IEC-61937 compatible Muxer
  745. - TwinVQ decoder
  746. - Bluray (PGS) subtitle decoder
  747. - LPCM support in MPEG-TS (HDMV RID as found on Blu-ray disks)
  748. - WMA Pro decoder
  749. - Core Audio Format demuxer
  750. - ATRAC1 decoder
  751. - MD STUDIO audio demuxer
  752. - RF64 support in WAV demuxer
  753. - MPEG-4 Audio Lossless Coding (ALS) decoder
  754. - -formats option split into -formats, -codecs, -bsfs, and -protocols
  755. - IV8 demuxer
  756. - CDG demuxer and decoder
  757. - R210 decoder
  758. - Auravision Aura 1 and 2 decoders
  759. - Deluxe Paint Animation playback system
  760. - SIPR decoder
  761. - Adobe Filmstrip muxer and demuxer
  762. - RTP depacketization of H.263
  763. - Bink demuxer and audio/video decoders
  764. - enable symbol versioning by default for linkers that support it
  765. - IFF PBM/ILBM bitmap decoder
  766. - concat protocol
  767. - Indeo 5 decoder
  768. - RTP depacketization of AMR
  769. - WMA Voice decoder
  770. - ffprobe tool
  771. - AMR-NB decoder
  772. - RTSP muxer
  773. - HE-AAC v1 decoder
  774. - Kega Game Video (KGV1) decoder
  775. - VorbisComment writing for FLAC, Ogg FLAC and Ogg Speex files
  776. - RTP depacketization of Theora
  777. - HTTP Digest authentication
  778. - RTMP/RTMPT/RTMPS/RTMPE/RTMPTE protocol support via librtmp
  779. - Psygnosis YOP demuxer and video decoder
  780. - spectral extension support in the E-AC-3 decoder
  781. - unsharp video filter
  782. - RTP hinting in the mov/3gp/mp4 muxer
  783. - Dirac in Ogg demuxing
  784. - seek to keyframes in Ogg
  785. - 4:2:2 and 4:4:4 Theora decoding
  786. - 35% faster VP3/Theora decoding
  787. - faster AAC decoding
  788. - faster H.264 decoding
  789. - RealAudio 1.0 (14.4K) encoder
  790. version 0.5:
  791. - DV50 AKA DVCPRO50 encoder, decoder, muxer and demuxer
  792. - TechSmith Camtasia (TSCC) video decoder
  793. - IBM Ultimotion (ULTI) video decoder
  794. - Sierra Online audio file demuxer and decoder
  795. - Apple QuickDraw (qdrw) video decoder
  796. - Creative ADPCM audio decoder (16 bits as well as 8 bits schemes)
  797. - Electronic Arts Multimedia (WVE/UV2/etc.) file demuxer
  798. - Miro VideoXL (VIXL) video decoder
  799. - H.261 video encoder
  800. - QPEG video decoder
  801. - Nullsoft Video (NSV) file demuxer
  802. - Shorten audio decoder
  803. - LOCO video decoder
  804. - Apple Lossless Audio Codec (ALAC) decoder
  805. - Winnov WNV1 video decoder
  806. - Autodesk Animator Studio Codec (AASC) decoder
  807. - Indeo 2 video decoder
  808. - Fraps FPS1 video decoder
  809. - Snow video encoder/decoder
  810. - Sonic audio encoder/decoder
  811. - Vorbis audio decoder
  812. - Macromedia ADPCM decoder
  813. - Duck TrueMotion 2 video decoder
  814. - support for decoding FLX and DTA extensions in FLIC files
  815. - H.264 custom quantization matrices support
  816. - ffserver fixed, it should now be usable again
  817. - QDM2 audio decoder
  818. - Real Cooker audio decoder
  819. - TrueSpeech audio decoder
  820. - WMA2 audio decoder fixed, now all files should play correctly
  821. - RealAudio 14.4 and 28.8 decoders fixed
  822. - JPEG-LS decoder
  823. - build system improvements
  824. - tabs and trailing whitespace removed from the codebase
  825. - CamStudio video decoder
  826. - AIFF/AIFF-C audio format, encoding and decoding
  827. - ADTS AAC file reading and writing
  828. - Creative VOC file reading and writing
  829. - American Laser Games multimedia (*.mm) playback system
  830. - Zip Motion Blocks Video decoder
  831. - improved Theora/VP3 decoder
  832. - True Audio (TTA) decoder
  833. - AVS demuxer and video decoder
  834. - JPEG-LS encoder
  835. - Smacker demuxer and decoder
  836. - NuppelVideo/MythTV demuxer and RTjpeg decoder
  837. - KMVC decoder
  838. - MPEG-2 intra VLC support
  839. - MPEG-2 4:2:2 encoder
  840. - Flash Screen Video decoder
  841. - GXF demuxer
  842. - Chinese AVS decoder
  843. - GXF muxer
  844. - MXF demuxer
  845. - VC-1/WMV3/WMV9 video decoder
  846. - MacIntel support
  847. - AviSynth support
  848. - VMware video decoder
  849. - VP5 video decoder
  850. - VP6 video decoder
  851. - WavPack lossless audio decoder
  852. - Targa (.TGA) picture decoder
  853. - Vorbis audio encoder
  854. - Delphine Software .cin demuxer/audio and video decoder
  855. - Tiertex .seq demuxer/video decoder
  856. - MTV demuxer
  857. - TIFF picture encoder and decoder
  858. - GIF picture decoder
  859. - Intel Music Coder decoder
  860. - Zip Motion Blocks Video encoder
  861. - Musepack decoder
  862. - Flash Screen Video encoder
  863. - Theora encoding via libtheora
  864. - BMP encoder
  865. - WMA encoder
  866. - GSM-MS encoder and decoder
  867. - DCA decoder
  868. - DXA demuxer and decoder
  869. - DNxHD decoder
  870. - Gamecube movie (.THP) playback system
  871. - Blackfin optimizations
  872. - Interplay C93 demuxer and video decoder
  873. - Bethsoft VID demuxer and video decoder
  874. - CRYO APC demuxer
  875. - ATRAC3 decoder
  876. - V.Flash PTX decoder
  877. - RoQ muxer, RoQ audio encoder
  878. - Renderware TXD demuxer and decoder
  879. - extern C declarations for C++ removed from headers
  880. - sws_flags command line option
  881. - codebook generator
  882. - RoQ video encoder
  883. - QTRLE encoder
  884. - OS/2 support removed and restored again
  885. - AC-3 decoder
  886. - NUT muxer
  887. - additional SPARC (VIS) optimizations
  888. - Matroska muxer
  889. - slice-based parallel H.264 decoding
  890. - Monkey's Audio demuxer and decoder
  891. - AMV audio and video decoder
  892. - DNxHD encoder
  893. - H.264 PAFF decoding
  894. - Nellymoser ASAO decoder
  895. - Beam Software SIFF demuxer and decoder
  896. - libvorbis Vorbis decoding removed in favor of native decoder
  897. - IntraX8 (J-Frame) subdecoder for WMV2 and VC-1
  898. - Ogg (Theora, Vorbis and FLAC) muxer
  899. - The "device" muxers and demuxers are now in a new libavdevice library
  900. - PC Paintbrush PCX decoder
  901. - Sun Rasterfile decoder
  902. - TechnoTrend PVA demuxer
  903. - Linux Media Labs MPEG-4 (LMLM4) demuxer
  904. - AVM2 (Flash 9) SWF muxer
  905. - QT variant of IMA ADPCM encoder
  906. - VFW grabber
  907. - iPod/iPhone compatible mp4 muxer
  908. - Mimic decoder
  909. - MSN TCP Webcam stream demuxer
  910. - RL2 demuxer / decoder
  911. - IFF demuxer
  912. - 8SVX audio decoder
  913. - non-recursive Makefiles
  914. - BFI demuxer
  915. - MAXIS EA XA (.xa) demuxer / decoder
  916. - BFI video decoder
  917. - OMA demuxer
  918. - MLP/TrueHD decoder
  919. - Electronic Arts CMV decoder
  920. - Motion Pixels Video decoder
  921. - Motion Pixels MVI demuxer
  922. - removed animated GIF decoder/demuxer
  923. - D-Cinema audio muxer
  924. - Electronic Arts TGV decoder
  925. - Apple Lossless Audio Codec (ALAC) encoder
  926. - AAC decoder
  927. - floating point PCM encoder/decoder
  928. - MXF muxer
  929. - DV100 AKA DVCPRO HD decoder and demuxer
  930. - E-AC-3 support added to AC-3 decoder
  931. - Nellymoser ASAO encoder
  932. - ASS and SSA demuxer and muxer
  933. - liba52 wrapper removed
  934. - SVQ3 watermark decoding support
  935. - Speex decoding via libspeex
  936. - Electronic Arts TGQ decoder
  937. - RV40 decoder
  938. - QCELP / PureVoice decoder
  939. - RV30 decoder
  940. - hybrid WavPack support
  941. - R3D REDCODE demuxer
  942. - ALSA support for playback and record
  943. - Electronic Arts TQI decoder
  944. - OpenJPEG based JPEG 2000 decoder
  945. - NC (NC4600) camera file demuxer
  946. - Gopher client support
  947. - MXF D-10 muxer
  948. - generic metadata API
  949. - flash ScreenVideo2 encoder
  950. version 0.4.9-pre1:
  951. - DV encoder, DV muxer
  952. - Microsoft RLE video decoder
  953. - Microsoft Video-1 decoder
  954. - Apple Animation (RLE) decoder
  955. - Apple Graphics (SMC) decoder
  956. - Apple Video (RPZA) decoder
  957. - Cinepak decoder
  958. - Sega FILM (CPK) file demuxer
  959. - Westwood multimedia support (VQA & AUD files)
  960. - Id Quake II CIN playback support
  961. - 8BPS video decoder
  962. - FLIC playback support
  963. - RealVideo 2.0 (RV20) decoder
  964. - Duck TrueMotion v1 (DUCK) video decoder
  965. - Sierra VMD demuxer and video decoder
  966. - MSZH and ZLIB decoder support
  967. - SVQ1 video encoder
  968. - AMR-WB support
  969. - PPC optimizations
  970. - rate distortion optimal cbp support
  971. - rate distorted optimal ac prediction for MPEG-4
  972. - rate distorted optimal lambda->qp support
  973. - AAC encoding with libfaac
  974. - Sunplus JPEG codec (SP5X) support
  975. - use Lagrange multipler instead of QP for ratecontrol
  976. - Theora/VP3 decoding support
  977. - XA and ADX ADPCM codecs
  978. - export MPEG-2 active display area / pan scan
  979. - Add support for configuring with IBM XLC
  980. - floating point AAN DCT
  981. - initial support for zygo video (not complete)
  982. - RGB ffv1 support
  983. - new audio/video parser API
  984. - av_log() system
  985. - av_read_frame() and av_seek_frame() support
  986. - missing last frame fixes
  987. - seek by mouse in ffplay
  988. - noise reduction of DCT coefficients
  989. - H.263 OBMC & 4MV support
  990. - H.263 alternative inter vlc support
  991. - H.263 loop filter
  992. - H.263 slice structured mode
  993. - interlaced DCT support for MPEG-2 encoding
  994. - stuffing to stay above min_bitrate
  995. - MB type & QP visualization
  996. - frame stepping for ffplay
  997. - interlaced motion estimation
  998. - alternate scantable support
  999. - SVCD scan offset support
  1000. - closed GOP support
  1001. - SSE2 FDCT
  1002. - quantizer noise shaping
  1003. - G.726 ADPCM audio codec
  1004. - MS ADPCM encoding
  1005. - multithreaded/SMP motion estimation
  1006. - multithreaded/SMP encoding for MPEG-1/MPEG-2/MPEG-4/H.263
  1007. - multithreaded/SMP decoding for MPEG-2
  1008. - FLAC decoder
  1009. - Metrowerks CodeWarrior suppport
  1010. - H.263+ custom pcf support
  1011. - nicer output for 'ffmpeg -formats'
  1012. - Matroska demuxer
  1013. - SGI image format, encoding and decoding
  1014. - H.264 loop filter support
  1015. - H.264 CABAC support
  1016. - nicer looking arrows for the motion vector visualization
  1017. - improved VCD support
  1018. - audio timestamp drift compensation
  1019. - MPEG-2 YUV 422/444 support
  1020. - polyphase kaiser windowed sinc and blackman nuttall windowed sinc audio resample
  1021. - better image scaling
  1022. - H.261 support
  1023. - correctly interleave packets during encoding
  1024. - VIS optimized motion compensation
  1025. - intra_dc_precision>0 encoding support
  1026. - support reuse of motion vectors/MB types/field select values of the source video
  1027. - more accurate deblock filter
  1028. - padding support
  1029. - many optimizations and bugfixes
  1030. - FunCom ISS audio file demuxer and according ADPCM decoding
  1031. version 0.4.8:
  1032. - MPEG-2 video encoding (Michael)
  1033. - Id RoQ playback subsystem (Mike Melanson and Tim Ferguson)
  1034. - Wing Commander III Movie (.mve) file playback subsystem (Mike Melanson
  1035. and Mario Brito)
  1036. - Xan DPCM audio decoder (Mario Brito)
  1037. - Interplay MVE playback subsystem (Mike Melanson)
  1038. - Duck DK3 and DK4 ADPCM audio decoders (Mike Melanson)
  1039. version 0.4.7:
  1040. - RealAudio 1.0 (14_4) and 2.0 (28_8) native decoders. Author unknown, code from mplayerhq
  1041. (originally from public domain player for Amiga at http://www.honeypot.net/audio)
  1042. - current version now also compiles with older GCC (Fabrice)
  1043. - 4X multimedia playback system including 4xm file demuxer (Mike
  1044. Melanson), and 4X video and audio codecs (Michael)
  1045. - Creative YUV (CYUV) decoder (Mike Melanson)
  1046. - FFV1 codec (our very simple lossless intra only codec, compresses much better
  1047. than HuffYUV) (Michael)
  1048. - ASV1 (Asus), H.264, Intel indeo3 codecs have been added (various)
  1049. - tiny PNG encoder and decoder, tiny GIF decoder, PAM decoder (PPM with
  1050. alpha support), JPEG YUV colorspace support. (Fabrice Bellard)
  1051. - ffplay has been replaced with a newer version which uses SDL (optionally)
  1052. for multiplatform support (Fabrice)
  1053. - Sorenson Version 3 codec (SVQ3) support has been added (decoding only) - donated
  1054. by anonymous
  1055. - AMR format has been added (Johannes Carlsson)
  1056. - 3GP support has been added (Johannes Carlsson)
  1057. - VP3 codec has been added (Mike Melanson)
  1058. - more MPEG-1/2 fixes
  1059. - better multiplatform support, MS Visual Studio fixes (various)
  1060. - AltiVec optimizations (Magnus Damn and others)
  1061. - SH4 processor support has been added (BERO)
  1062. - new public interfaces (avcodec_get_pix_fmt) (Roman Shaposhnick)
  1063. - VOB streaming support (Brian Foley)
  1064. - better MP3 autodetection (Andriy Rysin)
  1065. - qpel encoding (Michael)
  1066. - 4mv+b frames encoding finally fixed (Michael)
  1067. - chroma ME (Michael)
  1068. - 5 comparison functions for ME (Michael)
  1069. - B-frame encoding speedup (Michael)
  1070. - WMV2 codec (unfinished - Michael)
  1071. - user specified diamond size for EPZS (Michael)
  1072. - Playstation STR playback subsystem, still experimental (Mike and Michael)
  1073. - ASV2 codec (Michael)
  1074. - CLJR decoder (Alex)
  1075. .. And lots more new enhancements and fixes.
  1076. version 0.4.6:
  1077. - completely new integer only MPEG audio layer 1/2/3 decoder rewritten
  1078. from scratch
  1079. - Recoded DCT and motion vector search with gcc (no longer depends on nasm)
  1080. - fix quantization bug in AC3 encoder
  1081. - added PCM codecs and format. Corrected WAV/AVI/ASF PCM issues
  1082. - added prototype ffplay program
  1083. - added GOB header parsing on H.263/H.263+ decoder (Juanjo)
  1084. - bug fix on MCBPC tables of H.263 (Juanjo)
  1085. - bug fix on DC coefficients of H.263 (Juanjo)
  1086. - added Advanced Prediction Mode on H.263/H.263+ decoder (Juanjo)
  1087. - now we can decode H.263 streams found in QuickTime files (Juanjo)
  1088. - now we can decode H.263 streams found in VIVO v1 files(Juanjo)
  1089. - preliminary RTP "friendly" mode for H.263/H.263+ coding. (Juanjo)
  1090. - added GOB header for H.263/H.263+ coding on RTP mode (Juanjo)
  1091. - now H.263 picture size is returned on the first decoded frame (Juanjo)
  1092. - added first regression tests
  1093. - added MPEG-2 TS demuxer
  1094. - new demux API for libav
  1095. - more accurate and faster IDCT (Michael)
  1096. - faster and entropy-controlled motion search (Michael)
  1097. - two pass video encoding (Michael)
  1098. - new video rate control (Michael)
  1099. - added MSMPEG4V1, MSMPEGV2 and WMV1 support (Michael)
  1100. - great performance improvement of video encoders and decoders (Michael)
  1101. - new and faster bit readers and vlc parsers (Michael)
  1102. - high quality encoding mode: tries all macroblock/VLC types (Michael)
  1103. - added DV video decoder
  1104. - preliminary RTP/RTSP support in ffserver and libavformat
  1105. - H.263+ AIC decoding/encoding support (Juanjo)
  1106. - VCD MPEG-PS mode (Juanjo)
  1107. - PSNR stuff (Juanjo)
  1108. - simple stats output (Juanjo)
  1109. - 16-bit and 15-bit RGB/BGR/GBR support (Bisqwit)
  1110. version 0.4.5:
  1111. - some header fixes (Zdenek Kabelac <kabi at informatics.muni.cz>)
  1112. - many MMX optimizations (Nick Kurshev <nickols_k at mail.ru>)
  1113. - added configure system (actually a small shell script)
  1114. - added MPEG audio layer 1/2/3 decoding using LGPL'ed mpglib by
  1115. Michael Hipp (temporary solution - waiting for integer only
  1116. decoder)
  1117. - fixed VIDIOCSYNC interrupt
  1118. - added Intel H.263 decoding support ('I263' AVI fourCC)
  1119. - added Real Video 1.0 decoding (needs further testing)
  1120. - simplified image formats again. Added PGM format (=grey
  1121. pgm). Renamed old PGM to PGMYUV.
  1122. - fixed msmpeg4 slice issues (tell me if you still find problems)
  1123. - fixed OpenDivX bugs with newer versions (added VOL header decoding)
  1124. - added support for MPlayer interface
  1125. - added macroblock skip optimization
  1126. - added MJPEG decoder
  1127. - added mmx/mmxext IDCT from libmpeg2
  1128. - added pgmyuvpipe, ppm, and ppm_pipe formats (original patch by Celer
  1129. <celer at shell.scrypt.net>)
  1130. - added pixel format conversion layer (e.g. for MJPEG or PPM)
  1131. - added deinterlacing option
  1132. - MPEG-1/2 fixes
  1133. - MPEG-4 vol header fixes (Jonathan Marsden <snmjbm at pacbell.net>)
  1134. - ARM optimizations (Lionel Ulmer <lionel.ulmer at free.fr>).
  1135. - Windows porting of file converter
  1136. - added MJPEG raw format (input/output)
  1137. - added JPEG image format support (input/output)
  1138. version 0.4.4:
  1139. - fixed some std header definitions (Bjorn Lindgren
  1140. <bjorn.e.lindgren at telia.com>).
  1141. - added MPEG demuxer (MPEG-1 and 2 compatible).
  1142. - added ASF demuxer
  1143. - added prototype RM demuxer
  1144. - added AC3 decoding (done with libac3 by Aaron Holtzman)
  1145. - added decoding codec parameter guessing (.e.g. for MPEG, because the
  1146. header does not include them)
  1147. - fixed header generation in MPEG-1, AVI and ASF muxer: wmplayer can now
  1148. play them (only tested video)
  1149. - fixed H.263 white bug
  1150. - fixed phase rounding in img resample filter
  1151. - add MMX code for polyphase img resample filter
  1152. - added CPU autodetection
  1153. - added generic title/author/copyright/comment string handling (ASF and RM
  1154. use them)
  1155. - added SWF demux to extract MP3 track (not usable yet because no MP3
  1156. decoder)
  1157. - added fractional frame rate support
  1158. - codecs are no longer searched by read_header() (should fix ffserver
  1159. segfault)
  1160. version 0.4.3:
  1161. - BGR24 patch (initial patch by Jeroen Vreeken <pe1rxq at amsat.org>)
  1162. - fixed raw yuv output
  1163. - added motion rounding support in MPEG-4
  1164. - fixed motion bug rounding in MSMPEG4
  1165. - added B-frame handling in video core
  1166. - added full MPEG-1 decoding support
  1167. - added partial (frame only) MPEG-2 support
  1168. - changed the FOURCC code for H.263 to "U263" to be able to see the
  1169. +AVI/H.263 file with the UB Video H.263+ decoder. MPlayer works with
  1170. this +codec ;) (JuanJo).
  1171. - Halfpel motion estimation after MB type selection (JuanJo)
  1172. - added pgm and .Y.U.V output format
  1173. - suppressed 'img:' protocol. Simply use: /tmp/test%d.[pgm|Y] as input or
  1174. output.
  1175. - added pgmpipe I/O format (original patch from Martin Aumueller
  1176. <lists at reserv.at>, but changed completely since we use a format
  1177. instead of a protocol)
  1178. version 0.4.2:
  1179. - added H.263/MPEG-4/MSMPEG4 decoding support. MPEG-4 decoding support
  1180. (for OpenDivX) is almost complete: 8x8 MVs and rounding are
  1181. missing. MSMPEG4 support is complete.
  1182. - added prototype MPEG-1 decoder. Only I- and P-frames handled yet (it
  1183. can decode ffmpeg MPEGs :-)).
  1184. - added libavcodec API documentation (see apiexample.c).
  1185. - fixed image polyphase bug (the bottom of some images could be
  1186. greenish)
  1187. - added support for non clipped motion vectors (decoding only)
  1188. and image sizes non-multiple of 16
  1189. - added support for AC prediction (decoding only)
  1190. - added file overwrite confirmation (can be disabled with -y)
  1191. - added custom size picture to H.263 using H.263+ (Juanjo)
  1192. version 0.4.1:
  1193. - added MSMPEG4 (aka DivX) compatible encoder. Changed default codec
  1194. of AVI and ASF to DIV3.
  1195. - added -me option to set motion estimation method
  1196. (default=log). suppressed redundant -hq option.
  1197. - added options -acodec and -vcodec to force a given codec (useful for
  1198. AVI for example)
  1199. - fixed -an option
  1200. - improved dct_quantize speed
  1201. - factorized some motion estimation code
  1202. version 0.4.0:
  1203. - removing grab code from ffserver and moved it to ffmpeg. Added
  1204. multistream support to ffmpeg.
  1205. - added timeshifting support for live feeds (option ?date=xxx in the
  1206. URL)
  1207. - added high quality image resize code with polyphase filter (need
  1208. mmx/see optimization). Enable multiple image size support in ffserver.
  1209. - added multi live feed support in ffserver
  1210. - suppressed master feature from ffserver (it should be done with an
  1211. external program which opens the .ffm url and writes it to another
  1212. ffserver)
  1213. - added preliminary support for video stream parsing (WAV and AVI half
  1214. done). Added proper support for audio/video file conversion in
  1215. ffmpeg.
  1216. - added preliminary support for video file sending from ffserver
  1217. - redesigning I/O subsystem: now using URL based input and output
  1218. (see avio.h)
  1219. - added WAV format support
  1220. - added "tty user interface" to ffmpeg to stop grabbing gracefully
  1221. - added MMX/SSE optimizations to SAD (Sums of Absolutes Differences)
  1222. (Juan J. Sierralta P. a.k.a. "Juanjo" <juanjo at atmlab.utfsm.cl>)
  1223. - added MMX DCT from mpeg2_movie 1.5 (Juanjo)
  1224. - added new motion estimation algorithms, log and phods (Juanjo)
  1225. - changed directories: libav for format handling, libavcodec for
  1226. codecs
  1227. version 0.3.4:
  1228. - added stereo in MPEG audio encoder
  1229. version 0.3.3:
  1230. - added 'high quality' mode which use motion vectors. It can be used in
  1231. real time at low resolution.
  1232. - fixed rounding problems which caused quality problems at high
  1233. bitrates and large GOP size
  1234. version 0.3.2: small fixes
  1235. - ASF fixes
  1236. - put_seek bug fix
  1237. version 0.3.1: added avi/divx support
  1238. - added AVI support
  1239. - added MPEG-4 codec compatible with OpenDivX. It is based on the H.263 codec
  1240. - added sound for flash format (not tested)
  1241. version 0.3: initial public release