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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.  
  4.  
  5. version 2.8.5
  6. - avformat/hls: Even stricter URL checks
  7. - avformat/hls: More strict url checks
  8. - avcodec/pngenc: Fix mixed up linesizes
  9. - avcodec/pngenc: Replace memcpy by av_image_copy()
  10. - swscale/vscale: Check that 2 tap filters are bilinear before using bilinear code
  11. - swscale: Move VScalerContext into vscale.c
  12. - swscale/utils: Detect and skip unneeded sws_setColorspaceDetails() calls
  13. - swscale/yuv2rgb: Increase YUV2RGB table headroom
  14. - swscale/yuv2rgb: Factor YUVRGB_TABLE_LUMA_HEADROOM out
  15. - avformat/hls: forbid all protocols except http(s) & file
  16. - avformat/aviobuf: Fix end check in put_str16()
  17. - avformat/asfenc: Check pts
  18. - avcodec/mpeg4video: Check time_incr
  19. - avcodec/wavpackenc: Check the number of channels
  20. - avcodec/wavpackenc: Headers are per channel
  21. - avcodec/aacdec_template: Check id_map
  22. - avcodec/dvdec: Fix "left shift of negative value -254"
  23. - avcodec/g2meet: Check for ff_els_decode_bit() failure in epic_decode_run_length()
  24. - avcodec/mjpegdec: Fix negative shift
  25. - avcodec/mss2: Check for repeat overflow
  26. - avformat: Add integer fps from 31 to 60 to get_std_framerate()
  27. - avformat/ivfenc: fix division by zero
  28. - avcodec/mpegvideo_enc: Clip bits_per_raw_sample within valid range
  29. - avfilter/vf_scale: set proper out frame color range
  30. - avcodec/motion_est: Fix mv_penalty table size
  31. - avcodec/h264_slice: Fix integer overflow in implicit weight computation
  32. - swscale/utils: Use normal bilinear scaler if fast cannot be used due to tiny dimensions
  33. - avcodec/put_bits: Always check buffer end before writing
  34. - mjpegdec: extend check for incompatible values of s->rgb and s->ls
  35. - swscale/utils: Fix intermediate format for cascaded alpha downscaling
  36. - avformat/mov: Update handbrake_version threshold for full mp3 parsing
  37. - x86/float_dsp: zero extend offset from ff_scalarproduct_float_sse
  38. - avfilter/vf_zoompan: do not free frame we pushed to lavfi
  39. - nuv: sanitize negative fps rate
  40. - nutdec: reject negative value_len in read_sm_data
  41. - xwddec: prevent overflow of lsize * avctx->height
  42. - nutdec: only copy the header if it exists
  43. - exr: fix out of bounds read in get_code
  44. - on2avc: limit number of bits to 30 in get_egolomb
  45.  
  46.  
  47. version 2.8.4
  48. - rawdec: only exempt BIT0 with need_copy from buffer sanity check
  49. - mlvdec: check that index_entries exist
  50. - avcodec/mpeg4videodec: also for empty partitioned slices
  51. - avcodec/h264_refs: Fix long_idx check
  52. - avcodec/h264_mc_template: prefetch list1 only if it is used in the MB
  53. - avcodec/h264_slice: Simplify ref2frm indexing
  54. - avfilter/vf_mpdecimate: Add missing emms_c()
  55. - sonic: make sure num_taps * channels is not larger than frame_size
  56. - opus_silk: fix typo causing overflow in silk_stabilize_lsf
  57. - ffm: reject invalid codec_id and codec_type
  58. - golomb: always check for invalid UE golomb codes in get_ue_golomb
  59. - sbr_qmf_analysis: sanitize input for 32-bit imdct
  60. - sbrdsp_fixed: assert that input values are in the valid range
  61. - aacsbr: ensure strictly monotone time borders
  62. - aacenc: update max_sfb when num_swb changes
  63. - aaccoder: prevent crash of anmr coder
  64. - ffmdec: reject zero-sized chunks
  65. - swscale/x86/rgb2rgb_template: Fallback to mmx in interleaveBytes() if the alignment is insufficient for SSE*
  66. - swscale/x86/rgb2rgb_template: Do not crash on misaligend stride
  67. - avformat/mxfenc: Do not crash if there is no packet in the first stream
  68. - lavf/tee: fix side data double free.
  69. - avformat/hlsenc: Check the return code of avformat_write_header()
  70. - avformat/mov: Enable parser for mp3s by old HandBrake
  71. - avformat/mxfenc: Fix integer overflow in length computation
  72. - avformat/utils: estimate_timings_from_pts - increase retry counter, fixes invalid duration for ts files with hevc codec
  73. - avformat/matroskaenc: Check codecdelay before use
  74. - avutil/mathematics: Fix division by 0
  75. - mjpegdec: consider chroma subsampling in size check
  76. - libvpxenc: remove some unused ctrl id mappings
  77. - avcodec/vp3: ensure header is parsed successfully before tables
  78. - avcodec/jpeg2000dec: Check bpno in decode_cblk()
  79. - avcodec/pgssubdec: Fix left shift of 255 by 24 places cannot be represented in type int
  80. - swscale/utils: Fix for runtime error: left shift of negative value -1
  81. - avcodec/hevc: Fix integer overflow of entry_point_offset
  82. - avcodec/dirac_parser: Check that there is a previous PU before accessing it
  83. - avcodec/dirac_parser: Add basic validity checks for next_pu_offset and prev_pu_offset
  84. - avcodec/dirac_parser: Fix potential overflows in pointer checks
  85. - avcodec/wmaprodec: Check bits per sample to be within the range not causing integer overflows
  86. - avcodec/wmaprodec: Fix overflow of cutoff
  87. - avformat/smacker: fix integer overflow with pts_inc
  88. - avcodec/vp3: Fix "runtime error: left shift of negative value"
  89. - avformat/riffdec: Initialize bitrate
  90. - mpegencts: Fix overflow in cbr mode period calculations
  91. - avutil/timecode: Fix fps check
  92. - avutil/mathematics: return INT64_MIN (=AV_NOPTS_VALUE) from av_rescale_rnd() for overflows
  93. - avcodec/apedec: Check length in long_filter_high_3800()
  94. - avcodec/vp3: always set pix_fmt in theora_decode_header()
  95. - avcodec/mpeg4videodec: Check available data before reading custom matrix
  96. - avutil/mathematics: Do not treat INT64_MIN as positive in av_rescale_rnd
  97. - avutil/integer: Fix av_mod_i() with negative dividend
  98. - avformat/dump: Fix integer overflow in av_dump_format()
  99. - avcodec/h264_refs: Check that long references match before use
  100. - avcodec/utils: Clear dimensions in ff_get_buffer() on failure
  101. - avcodec/utils: Use 64bit for aspect ratio calculation in avcodec_string()
  102. - avcodec/hevc: Check max ctb addresses for WPP
  103. - avcodec/vp3: Clear context on reinitialization failure
  104. - avcodec/hevc: allocate entries unconditionally
  105. - avcodec/hevc_cabac: Fix multiple integer overflows
  106. - avcodec/jpeg2000dwt: Check ndeclevels before calling dwt_encode*()
  107. - avcodec/jpeg2000dwt: Check ndeclevels before calling dwt_decode*()
  108. - avcodec/hevc: Check entry_point_offsets
  109. - lavf/rtpenc_jpeg: Less strict check for standard Huffman tables.
  110. - avcodec/ffv1dec: Clear quant_table_count if its invalid
  111. - avcodec/ffv1dec: Print an error if the quant table count is invalid
  112. - doc/filters/drawtext: fix centering example
  113.  
  114.  
  115. version 2.8.3
  116. - avcodec/cabac: Check initial cabac decoder state
  117. - avcodec/cabac_functions: Fix "left shift of negative value -31767"
  118. - avcodec/h264_slice: Limit max_contexts when slice_context_count is initialized
  119. - rtmpcrypt: Do the xtea decryption in little endian mode
  120. - avformat/matroskadec: Check subtitle stream before dereferencing
  121. - avcodec/pngdec: Replace assert by request for sample for unsupported TRNS cases
  122. - avformat/utils: Do not init parser if probing is unfinished
  123. - avcodec/jpeg2000dec: Fix potential integer overflow with tile dimensions
  124. - avcodec/jpeg2000: Use av_image_check_size() in ff_jpeg2000_init_component()
  125. - avcodec/wmaprodec: Check for overread in decode_packet()
  126. - avcodec/smacker: Check that the data size is a multiple of a sample vector
  127. - avcodec/takdec: Skip last p2 sample (which is unused)
  128. - avcodec/dxtory: Fix input size check in dxtory_decode_v1_410()
  129. - avcodec/dxtory: Fix input size check in dxtory_decode_v1_420()
  130. - avcodec/error_resilience: avoid accessing previous or next frames tables beyond height
  131. - avcodec/dpx: Move need_align to act per line
  132. - avcodec/flashsv: Check size before updating it
  133. - avcodec/ivi: Check image dimensions
  134. - avcodec/utils: Better check for channels in av_get_audio_frame_duration()
  135. - avcodec/jpeg2000dec: Check for duplicate SIZ marker
  136. - aacsbr: don't call sbr_dequant twice without intermediate read_sbr_data
  137. - hqx: correct type and size check of info_offset
  138. - mxfdec: check edit_rate also for physical_track
  139. - avcodec/jpeg2000: Change coord to 32bit to support larger than 32k width or height
  140. - avcodec/jpeg2000dec: Check SIZ dimensions to be within the supported range
  141. - avcodec/jpeg2000: Check comp coords to be within the supported size
  142. - mpegvideo: clear overread in clear_context
  143. - avcodec/avrndec: Use the AVFrame format instead of the context
  144. - dds: disable palette flag for compressed images
  145. - dds: validate compressed source buffer size
  146. - dds: validate source buffer size before copying
  147. - dvdsubdec: validate offset2 similar to offset1
  148. - brstm: reject negative sample rate
  149. - aacps: avoid division by zero in stereo_processing
  150. - softfloat: assert when the argument of av_sqrt_sf is negative
  151.  
  152. version 2.8.2
  153. - various fixes in the aac_fixed decoder
  154. - various fixes in softfloat
  155. - swresample/resample: increase precision for compensation
  156. - lavf/mov: add support for sidx fragment indexes
  157. - avformat/mxfenc: Only store user comment related tags when needed
  158. - tests/fate/avformat: Fix fate-lavf
  159. - doc/ffmpeg: Clarify that the sdp_file option requires an rtp output.
  160. - ffmpeg: Don't try and write sdp info if none of the outputs had an rtp format.
  161. - apng: use correct size for output buffer
  162. - jvdec: avoid unsigned overflow in comparison
  163. - avcodec/jpeg2000dec: Clip all tile coordinates
  164. - avcodec/microdvddec: Check for string end in 'P' case
  165. - avcodec/dirac_parser: Fix undefined memcpy() use
  166. - avformat/xmv: Discard remainder of packet on error
  167. - avformat/xmv: factor return check out of if/else
  168. - avcodec/mpeg12dec: Do not call show_bits() with invalid bits
  169. - avcodec/faxcompr: Add missing runs check in decode_uncompressed()
  170. - libavutil/channel_layout: Check strtol*() for failure
  171. - avformat/mpegts: Only start probing data streams within probe_packets
  172. - avcodec/hevc_ps: Check chroma_format_idc
  173. - avcodec/ffv1dec: Check for 0 quant tables
  174. - avcodec/mjpegdec: Reinitialize IDCT on BPP changes
  175. - avcodec/mjpegdec: Check index in ljpeg_decode_yuv_scan() before using it
  176. - avutil/file_open: avoid file handle inheritance on Windows
  177. - avcodec/h264_slice: Disable slice threads if there are multiple access units in a packet
  178. - avformat/hls: update cookies on setcookie response
  179. - opusdec: Don't run vector_fmul_scalar on zero length arrays
  180. - avcodec/opusdec: Fix extra samples read index
  181. - avcodec/ffv1: Initialize vlc_state on allocation
  182. - avcodec/ffv1dec: update progress in case of broken pointer chains
  183. - avcodec/ffv1dec: Clear slice coordinates if they are invalid or slice header decoding fails for other reasons
  184. - rtsp: Allow $ as interleaved packet indicator before a complete response header
  185. - videodsp: don't overread edges in vfix3 emu_edge.
  186. - avformat/mp3dec: improve junk skipping heuristic
  187. - concatdec: fix file_start_time calculation regression
  188. - avcodec: loongson optimize h264dsp idct and loop filter with mmi
  189. - avcodec/jpeg2000dec: Clear properties in jpeg2000_dec_cleanup() too
  190. - avformat/hls: add support for EXT-X-MAP
  191. - avformat/hls: fix segment selection regression on track changes of live streams
  192. - configure: Require libkvazaar < 0.7.
  193. - avcodec/vp8: Do not use num_coeff_partitions in thread/buffer setup
  194.  
  195.  
  196. version 2.8.1:
  197. - swscale: fix ticket #4881
  198. - doc: fix spelling errors
  199. - hls: only seek if there is an offset
  200. - asfdec: add more checks for size left in asf packet buffer
  201. - asfdec: alloc enough space for storing name in asf_read_metadata_obj
  202. - avcodec/pngdec: Check blend_op.
  203. - h264_mp4toannexb: fix pps offfset fault when there are more than one sps in avcc
  204. - avcodec/h264_mp4toannexb_bsf: Use av_freep() to free spspps_buf
  205. - avformat/avidec: Workaround broken initial frame
  206. - avformat/hls: fix some cases of HLS streams which require cookies
  207. - avcodec/pngdec: reset has_trns after every decode_frame_png()
  208. - lavf/img2dec: Fix memory leak
  209. - avcodec/mp3: fix skipping zeros
  210. - avformat/srtdec: make sure we probe a number
  211. - configure: check for ID3D11VideoContext
  212. - avformat/vobsub: compare correct packet stream IDs
  213. - avformat/srtdec: more lenient first line probing
  214. - avformat/srtdec: fix number check for the first character
  215. - avcodec/mips: build fix for MSA 64bit
  216. - avcodec/mips: build fix for MSA
  217. - avformat/httpauth: Add space after commas in HTTP/RTSP auth header
  218. - libavformat/hlsenc: Use of uninitialized memory unlinking old files
  219. - avcodec/x86/sbrdsp: Fix using uninitialized upper 32bit of noise
  220. - avcodec/ffv1dec: Fix off by 1 error in quant_table_count check
  221. - avcodec/ffv1dec: Explicitly check read_quant_table() return value
  222. - dnxhddata: correct weight tables
  223. - dnxhddec: decode and use interlace mb flag
  224. - swscale: fix ticket #4877
  225. - avcodec/rangecoder: Check e
  226. - avcodec/ffv1: separate slice_count from max_slice_count
  227. - swscale: fix ticket 4850
  228. - cmdutils: Filter dst/srcw/h
  229. - avutil/log: fix zero length gnu_printf format string warning
  230. - lavf/webvttenc: Require webvtt file to contain exactly one WebVTT stream.
  231. - swscale/swscale: Fix "unused variable" warning
  232. - avcodec/mjpegdec: Fix decoding RGBA RCT LJPEG
  233. - MAINTAINERS: add 2.8, drop 2.2
  234. - doc: mention libavcodec can decode Opus natively
  235. - hevc: properly handle no_rasl_output_flag when removing pictures from the DPB
  236. - avfilter/af_ladspa: process all channels for nb_handles > 1
  237. - configure: add libsoxr to swresample's pkgconfig
  238. - lavc: Fix compilation with --disable-everything --enable-parser=mpeg4video.
  239.  
  240. version 2.8:
  241. - colorkey video filter
  242. - BFSTM/BCSTM demuxer
  243. - little-endian ADPCM_THP decoder
  244. - Hap decoder and encoder
  245. - DirectDraw Surface image/texture decoder
  246. - ssim filter
  247. - optional new ASF demuxer
  248. - showvolume filter
  249. - Many improvements to the JPEG 2000 decoder
  250. - Go2Meeting decoding support
  251. - adrawgraph audio and drawgraph video filter
  252. - removegrain video filter
  253. - Intel QSV-accelerated MPEG-2 video and HEVC encoding
  254. - Intel QSV-accelerated MPEG-2 video and HEVC decoding
  255. - Intel QSV-accelerated VC-1 video decoding
  256. - libkvazaar HEVC encoder
  257. - erosion, dilation, deflate and inflate video filters
  258. - Dynamic Audio Normalizer as dynaudnorm filter
  259. - Reverse video and areverse audio filter
  260. - Random filter
  261. - deband filter
  262. - AAC fixed-point decoding
  263. - sidechaincompress audio filter
  264. - bitstream filter for converting HEVC from MP4 to Annex B
  265. - acrossfade audio filter
  266. - allyuv and allrgb video sources
  267. - atadenoise video filter
  268. - OS X VideoToolbox support
  269. - aphasemeter filter
  270. - showfreqs filter
  271. - vectorscope filter
  272. - waveform filter
  273. - hstack and vstack filter
  274. - Support DNx100 (1440x1080@8)
  275. - VAAPI hevc hwaccel
  276. - VDPAU hevc hwaccel
  277. - framerate filter
  278. - Switched default encoders for webm to VP9 and Opus
  279. - Removed experimental flag from the JPEG 2000 encoder
  280.  
  281.  
  282. version 2.7:
  283. - FFT video filter
  284. - TDSC decoder
  285. - DTS lossless extension (XLL) decoding (not lossless, disabled by default)
  286. - showwavespic filter
  287. - DTS decoding through libdcadec
  288. - Drop support for nvenc API before 5.0
  289. - nvenc HEVC encoder
  290. - Detelecine filter
  291. - Intel QSV-accelerated H.264 encoding
  292. - MMAL-accelerated H.264 decoding
  293. - basic APNG encoder and muxer with default extension "apng"
  294. - unpack DivX-style packed B-frames in MPEG-4 bitstream filter
  295. - WebM Live Chunk Muxer
  296. - nvenc level and tier options
  297. - chorus filter
  298. - Canopus HQ/HQA decoder
  299. - Automatically rotate videos based on metadata in ffmpeg
  300. - improved Quickdraw compatibility
  301. - VP9 high bit-depth and extended colorspaces decoding support
  302. - WebPAnimEncoder API when available for encoding and muxing WebP
  303. - Direct3D11-accelerated decoding
  304. - Support Secure Transport
  305. - Multipart JPEG demuxer
  306.  
  307.  
  308. version 2.6:
  309. - nvenc encoder
  310. - 10bit spp filter
  311. - colorlevels filter
  312. - RIFX format for *.wav files
  313. - RTP/mpegts muxer
  314. - non continuous cache protocol support
  315. - tblend filter
  316. - cropdetect support for non 8bpp, absolute (if limit >= 1) and relative (if limit < 1.0) threshold
  317. - Camellia symmetric block cipher
  318. - OpenH264 encoder wrapper
  319. - VOC seeking support
  320. - Closed caption Decoder
  321. - fspp, uspp, pp7 MPlayer postprocessing filters ported to native filters
  322. - showpalette filter
  323. - Twofish symmetric block cipher
  324. - Support DNx100 (960x720@8)
  325. - eq2 filter ported from libmpcodecs as eq filter
  326. - removed libmpcodecs
  327. - Changed default DNxHD colour range in QuickTime .mov derivatives to mpeg range
  328. - ported softpulldown filter from libmpcodecs as repeatfields filter
  329. - dcshift filter
  330. - RTP depacketizer for loss tolerant payload format for MP3 audio (RFC 5219)
  331. - RTP depacketizer for AC3 payload format (RFC 4184)
  332. - palettegen and paletteuse filters
  333. - VP9 RTP payload format (draft 0) experimental depacketizer
  334. - RTP depacketizer for DV (RFC 6469)
  335. - DXVA2-accelerated HEVC decoding
  336. - AAC ELD 480 decoding
  337. - Intel QSV-accelerated H.264 decoding
  338. - DSS SP decoder and DSS demuxer
  339. - Fix stsd atom corruption in DNxHD QuickTimes
  340. - Canopus HQX decoder
  341. - RTP depacketization of T.140 text (RFC 4103)
  342. - Port MIPS optimizations to 64-bit
  343.  
  344.  
  345. version 2.5:
  346. - HEVC/H.265 RTP payload format (draft v6) packetizer
  347. - SUP/PGS subtitle demuxer
  348. - ffprobe -show_pixel_formats option
  349. - CAST128 symmetric block cipher, ECB mode
  350. - STL subtitle demuxer and decoder
  351. - libutvideo YUV 4:2:2 10bit support
  352. - XCB-based screen-grabber
  353. - UDP-Lite support (RFC 3828)
  354. - xBR scaling filter
  355. - AVFoundation screen capturing support
  356. - ffserver supports codec private options
  357. - creating DASH compatible fragmented MP4, MPEG-DASH segmenting muxer
  358. - WebP muxer with animated WebP support
  359. - zygoaudio decoding support
  360. - APNG demuxer
  361. - postproc visualization support
  362.  
  363.  
  364. version 2.4:
  365. - Icecast protocol
  366. - ported lenscorrection filter from frei0r filter
  367. - large optimizations in dctdnoiz to make it usable
  368. - ICY metadata are now requested by default with the HTTP protocol
  369. - support for using metadata in stream specifiers in fftools
  370. - LZMA compression support in TIFF decoder
  371. - H.261 RTP payload format (RFC 4587) depacketizer and experimental packetizer
  372. - HEVC/H.265 RTP payload format (draft v6) depacketizer
  373. - added codecview filter to visualize information exported by some codecs
  374. - Matroska 3D support thorugh side data
  375. - HTML generation using texi2html is deprecated in favor of makeinfo/texi2any
  376. - silenceremove filter
  377.  
  378.  
  379. version 2.3:
  380. - AC3 fixed-point decoding
  381. - shuffleplanes filter
  382. - subfile protocol
  383. - Phantom Cine demuxer
  384. - replaygain data export
  385. - VP7 video decoder
  386. - Alias PIX image encoder and decoder
  387. - Improvements to the BRender PIX image decoder
  388. - Improvements to the XBM decoder
  389. - QTKit input device
  390. - improvements to OpenEXR image decoder
  391. - support decoding 16-bit RLE SGI images
  392. - GDI screen grabbing for Windows
  393. - alternative rendition support for HTTP Live Streaming
  394. - AVFoundation input device
  395. - Direct Stream Digital (DSD) decoder
  396. - Magic Lantern Video (MLV) demuxer
  397. - On2 AVC (Audio for Video) decoder
  398. - support for decoding through DXVA2 in ffmpeg
  399. - libbs2b-based stereo-to-binaural audio filter
  400. - libx264 reference frames count limiting depending on level
  401. - native Opus decoder
  402. - display matrix export and rotation API
  403. - WebVTT encoder
  404. - showcqt multimedia filter
  405. - zoompan filter
  406. - signalstats filter
  407. - hqx filter (hq2x, hq3x, hq4x)
  408. - flanger filter
  409. - Image format auto-detection
  410. - LRC demuxer and muxer
  411. - Samba protocol (via libsmbclient)
  412. - WebM DASH Manifest muxer
  413. - libfribidi support in drawtext
  414.  
  415.  
  416. version 2.2:
  417.  
  418. - HNM version 4 demuxer and video decoder
  419. - Live HDS muxer
  420. - setsar/setdar filters now support variables in ratio expressions
  421. - elbg filter
  422. - string validation in ffprobe
  423. - support for decoding through VDPAU in ffmpeg (the -hwaccel option)
  424. - complete Voxware MetaSound decoder
  425. - remove mp3_header_compress bitstream filter
  426. - Windows resource files for shared libraries
  427. - aeval filter
  428. - stereoscopic 3d metadata handling
  429. - WebP encoding via libwebp
  430. - ATRAC3+ decoder
  431. - VP8 in Ogg demuxing
  432. - side & metadata support in NUT
  433. - framepack filter
  434. - XYZ12 rawvideo support in NUT
  435. - Exif metadata support in WebP decoder
  436. - OpenGL device
  437. - Use metadata_header_padding to control padding in ID3 tags (currently used in
  438.   MP3, AIFF, and OMA files), FLAC header, and the AVI "junk" block.
  439. - Mirillis FIC video decoder
  440. - Support DNx444
  441. - libx265 encoder
  442. - dejudder filter
  443. - Autodetect VDA like all other hardware accelerations
  444. - aliases and defaults for Ogg subtypes (opus, spx)
  445.  
  446.  
  447. version 2.1:
  448.  
  449. - aecho filter
  450. - perspective filter ported from libmpcodecs
  451. - ffprobe -show_programs option
  452. - compand filter
  453. - RTMP seek support
  454. - when transcoding with ffmpeg (i.e. not streamcopying), -ss is now accurate
  455.   even when used as an input option. Previous behavior can be restored with
  456.   the -noaccurate_seek option.
  457. - ffmpeg -t option can now be used for inputs, to limit the duration of
  458.   data read from an input file
  459. - incomplete Voxware MetaSound decoder
  460. - read EXIF metadata from JPEG
  461. - DVB teletext decoder
  462. - phase filter ported from libmpcodecs
  463. - w3fdif filter
  464. - Opus support in Matroska
  465. - FFV1 version 1.3 is stable and no longer experimental
  466. - FFV1: YUVA(444,422,420) 9, 10 and 16 bit support
  467. - changed DTS stream id in lavf mpeg ps muxer from 0x8a to 0x88, to be
  468.   more consistent with other muxers.
  469. - adelay filter
  470. - pullup filter ported from libmpcodecs
  471. - ffprobe -read_intervals option
  472. - Lossless and alpha support for WebP decoder
  473. - Error Resilient AAC syntax (ER AAC LC) decoding
  474. - Low Delay AAC (ER AAC LD) decoding
  475. - mux chapters in ASF files
  476. - SFTP protocol (via libssh)
  477. - libx264: add ability to encode in YUVJ422P and YUVJ444P
  478. - Fraps: use BT.709 colorspace by default for yuv, as reference fraps decoder does
  479. - make decoding alpha optional for prores, ffv1 and vp6 by setting
  480.   the skip_alpha flag.
  481. - ladspa wrapper filter
  482. - native VP9 decoder
  483. - dpx parser
  484. - max_error_rate parameter in ffmpeg
  485. - PulseAudio output device
  486. - ReplayGain scanner
  487. - Enhanced Low Delay AAC (ER AAC ELD) decoding (no LD SBR support)
  488. - Linux framebuffer output device
  489. - HEVC decoder
  490. - raw HEVC, HEVC in MOV/MP4, HEVC in Matroska, HEVC in MPEG-TS demuxing
  491. - mergeplanes filter
  492.  
  493.  
  494. version 2.0:
  495.  
  496. - curves filter
  497. - reference-counting for AVFrame and AVPacket data
  498. - ffmpeg now fails when input options are used for output file
  499.   or vice versa
  500. - support for Monkey's Audio versions from 3.93
  501. - perms and aperms filters
  502. - audio filtering support in ffplay
  503. - 10% faster aac encoding on x86 and MIPS
  504. - sine audio filter source
  505. - WebP demuxing and decoding support
  506. - ffmpeg options -filter_script and -filter_complex_script, which allow a
  507.   filtergraph description to be read from a file
  508. - OpenCL support
  509. - audio phaser filter
  510. - separatefields filter
  511. - libquvi demuxer
  512. - uniform options syntax across all filters
  513. - telecine filter
  514. - interlace filter
  515. - smptehdbars source
  516. - inverse telecine filters (fieldmatch and decimate)
  517. - colorbalance filter
  518. - colorchannelmixer filter
  519. - The matroska demuxer can now output proper verbatim ASS packets. It will
  520.   become the default at the next libavformat major bump.
  521. - decent native animated GIF encoding
  522. - asetrate filter
  523. - interleave filter
  524. - timeline editing with filters
  525. - vidstabdetect and vidstabtransform filters for video stabilization using
  526.   the vid.stab library
  527. - astats filter
  528. - trim and atrim filters
  529. - ffmpeg -t and -ss (output-only) options are now sample-accurate when
  530.   transcoding audio
  531. - Matroska muxer can now put the index at the beginning of the file.
  532. - extractplanes filter
  533. - avectorscope filter
  534. - ADPCM DTK decoder
  535. - ADP demuxer
  536. - RSD demuxer
  537. - RedSpark demuxer
  538. - ADPCM IMA Radical decoder
  539. - zmq filters
  540. - DCT denoiser filter (dctdnoiz)
  541. - Wavelet denoiser filter ported from libmpcodecs as owdenoise (formerly "ow")
  542. - Apple Intermediate Codec decoder
  543. - Escape 130 video decoder
  544. - FTP protocol support
  545. - V4L2 output device
  546. - 3D LUT filter (lut3d)
  547. - SMPTE 302M audio encoder
  548. - support for slice multithreading in libavfilter
  549. - Hald CLUT support (generation and filtering)
  550. - VC-1 interlaced B-frame support
  551. - support for WavPack muxing (raw and in Matroska)
  552. - XVideo output device
  553. - vignette filter
  554. - True Audio (TTA) encoder
  555. - Go2Webinar decoder
  556. - mcdeint filter ported from libmpcodecs
  557. - sab filter ported from libmpcodecs
  558. - ffprobe -show_chapters option
  559. - WavPack encoding through libwavpack
  560. - rotate filter
  561. - spp filter ported from libmpcodecs
  562. - libgme support
  563. - psnr filter
  564.  
  565.  
  566. version 1.2:
  567.  
  568. - VDPAU hardware acceleration through normal hwaccel
  569. - SRTP support
  570. - Error diffusion dither in Swscale
  571. - Chained Ogg support
  572. - Theora Midstream reconfiguration support
  573. - EVRC decoder
  574. - audio fade filter
  575. - filtering audio with unknown channel layout
  576. - allpass, bass, bandpass, bandreject, biquad, equalizer, highpass, lowpass
  577.   and treble audio filter
  578. - improved showspectrum filter, with multichannel support and sox-like colors
  579. - histogram filter
  580. - tee muxer
  581. - il filter ported from libmpcodecs
  582. - support ID3v2 tags in ASF files
  583. - encrypted TTA stream decoding support
  584. - RF64 support in WAV muxer
  585. - noise filter ported from libmpcodecs
  586. - Subtitles character encoding conversion
  587. - blend filter
  588. - stereo3d filter ported from libmpcodecs
  589.  
  590.  
  591. version 1.1:
  592.  
  593. - stream disposition information printing in ffprobe
  594. - filter for loudness analysis following EBU R128
  595. - Opus encoder using libopus
  596. - ffprobe -select_streams option
  597. - Pinnacle TARGA CineWave YUV16 decoder
  598. - TAK demuxer, decoder and parser
  599. - DTS-HD demuxer
  600. - remove -same_quant, it hasn't worked for years
  601. - FFM2 support
  602. - X-Face image encoder and decoder
  603. - 24-bit FLAC encoding
  604. - multi-channel ALAC encoding up to 7.1
  605. - metadata (INFO tag) support in WAV muxer
  606. - subtitles raw text decoder
  607. - support for building DLLs using MSVC
  608. - LVF demuxer
  609. - ffescape tool
  610. - metadata (info chunk) support in CAF muxer
  611. - field filter ported from libmpcodecs
  612. - AVR demuxer
  613. - geq filter ported from libmpcodecs
  614. - remove ffserver daemon mode
  615. - AST muxer/demuxer
  616. - new expansion syntax for drawtext
  617. - BRender PIX image decoder
  618. - ffprobe -show_entries option
  619. - ffprobe -sections option
  620. - ADPCM IMA Dialogic decoder
  621. - BRSTM demuxer
  622. - animated GIF decoder and demuxer
  623. - PVF demuxer
  624. - subtitles filter
  625. - IRCAM muxer/demuxer
  626. - Paris Audio File demuxer
  627. - Virtual concatenation demuxer
  628. - VobSub demuxer
  629. - JSON captions for TED talks decoding support
  630. - SOX Resampler support in libswresample
  631. - aselect filter
  632. - SGI RLE 8-bit / Silicon Graphics RLE 8-bit video decoder
  633. - Silicon Graphics Motion Video Compressor 1 & 2 decoder
  634. - Silicon Graphics Movie demuxer
  635. - apad filter
  636. - Resolution & pixel format change support with multithreading for H.264
  637. - documentation split into per-component manuals
  638. - pp (postproc) filter ported from MPlayer
  639. - NIST Sphere demuxer
  640. - MPL2, VPlayer, MPlayer, AQTitle, PJS and SubViewer v1 subtitles demuxers and decoders
  641. - Sony Wave64 muxer
  642. - adobe and limelight publisher authentication in RTMP
  643. - data: URI scheme
  644. - support building on the Plan 9 operating system
  645. - kerndeint filter ported from MPlayer
  646. - histeq filter ported from VirtualDub
  647. - Megalux Frame demuxer
  648. - 012v decoder
  649. - Improved AVC Intra decoding support
  650.  
  651.  
  652. version 1.0:
  653.  
  654. - INI and flat output in ffprobe
  655. - Scene detection in libavfilter
  656. - Indeo Audio decoder
  657. - channelsplit audio filter
  658. - setnsamples audio filter
  659. - atempo filter
  660. - ffprobe -show_data option
  661. - RTMPT protocol support
  662. - iLBC encoding/decoding via libilbc
  663. - Microsoft Screen 1 decoder
  664. - join audio filter
  665. - audio channel mapping filter
  666. - Microsoft ATC Screen decoder
  667. - RTSP listen mode
  668. - TechSmith Screen Codec 2 decoder
  669. - AAC encoding via libfdk-aac
  670. - Microsoft Expression Encoder Screen decoder
  671. - RTMPS protocol support
  672. - RTMPTS protocol support
  673. - RTMPE protocol support
  674. - RTMPTE protocol support
  675. - showwaves and showspectrum filter
  676. - LucasArts SMUSH SANM playback support
  677. - LucasArts SMUSH VIMA audio decoder (ADPCM)
  678. - LucasArts SMUSH demuxer
  679. - SAMI, RealText and SubViewer demuxers and decoders
  680. - Heart Of Darkness PAF playback support
  681. - iec61883 device
  682. - asettb filter
  683. - new option: -progress
  684. - 3GPP Timed Text encoder/decoder
  685. - GeoTIFF decoder support
  686. - ffmpeg -(no)stdin option
  687. - Opus decoder using libopus
  688. - caca output device using libcaca
  689. - alphaextract and alphamerge filters
  690. - concat filter
  691. - flite filter
  692. - Canopus Lossless Codec decoder
  693. - bitmap subtitles in filters (experimental and temporary)
  694. - MP2 encoding via TwoLAME
  695. - bmp parser
  696. - smptebars source
  697. - asetpts filter
  698. - hue filter
  699. - ICO muxer
  700. - SubRip encoder and decoder without embedded timing
  701. - edge detection filter
  702. - framestep filter
  703. - ffmpeg -shortest option is now per-output file
  704.   -pass and -passlogfile are now per-output stream
  705. - volume measurement filter
  706. - Ut Video encoder
  707. - Microsoft Screen 2 decoder
  708. - smartblur filter ported from MPlayer
  709. - CPiA decoder
  710. - decimate filter ported from MPlayer
  711. - RTP depacketization of JPEG
  712. - Smooth Streaming live segmenter muxer
  713. - F4V muxer
  714. - sendcmd and asendcmd filters
  715. - WebVTT demuxer and decoder (simple tags supported)
  716. - RTP packetization of JPEG
  717. - faststart option in the MOV/MP4 muxer
  718. - support for building with MSVC
  719.  
  720.  
  721. version 0.11:
  722.  
  723. - Fixes: CVE-2012-2772, CVE-2012-2774, CVE-2012-2775, CVE-2012-2776, CVE-2012-2777,
  724.          CVE-2012-2779, CVE-2012-2782, CVE-2012-2783, CVE-2012-2784, CVE-2012-2785,
  725.          CVE-2012-2786, CVE-2012-2787, CVE-2012-2788, CVE-2012-2789, CVE-2012-2790,
  726.          CVE-2012-2791, CVE-2012-2792, CVE-2012-2793, CVE-2012-2794, CVE-2012-2795,
  727.          CVE-2012-2796, CVE-2012-2797, CVE-2012-2798, CVE-2012-2799, CVE-2012-2800,
  728.          CVE-2012-2801, CVE-2012-2802, CVE-2012-2803, CVE-2012-2804,
  729. - v408 Quicktime and Microsoft AYUV Uncompressed 4:4:4:4 encoder and decoder
  730. - setfield filter
  731. - CDXL demuxer and decoder
  732. - Apple ProRes encoder
  733. - ffprobe -count_packets and -count_frames options
  734. - Sun Rasterfile Encoder
  735. - ID3v2 attached pictures reading and writing
  736. - WMA Lossless decoder
  737. - bluray protocol
  738. - blackdetect filter
  739. - libutvideo encoder wrapper (--enable-libutvideo)
  740. - swapuv filter
  741. - bbox filter
  742. - XBM encoder and decoder
  743. - RealAudio Lossless decoder
  744. - ZeroCodec decoder
  745. - tile video filter
  746. - Metal Gear Solid: The Twin Snakes demuxer
  747. - OpenEXR image decoder
  748. - removelogo filter
  749. - drop support for ffmpeg without libavfilter
  750. - drawtext video filter: fontconfig support
  751. - ffmpeg -benchmark_all option
  752. - super2xsai filter ported from libmpcodecs
  753. - add libavresample audio conversion library for compatibility
  754. - MicroDVD decoder
  755. - Avid Meridien (AVUI) encoder and decoder
  756. - accept + prefix to -pix_fmt option to disable automatic conversions.
  757. - complete audio filtering in libavfilter and ffmpeg
  758. - add fps filter
  759. - vorbis parser
  760. - png parser
  761. - audio mix filter
  762. - ffv1: support (draft) version 1.3
  763.  
  764.  
  765. version 0.10:
  766.  
  767. - Fixes: CVE-2011-3929, CVE-2011-3934, CVE-2011-3935, CVE-2011-3936,
  768.          CVE-2011-3937, CVE-2011-3940, CVE-2011-3941, CVE-2011-3944,
  769.          CVE-2011-3945, CVE-2011-3946, CVE-2011-3947, CVE-2011-3949,
  770.          CVE-2011-3950, CVE-2011-3951, CVE-2011-3952
  771. - v410 Quicktime Uncompressed 4:4:4 10-bit encoder and decoder
  772. - SBaGen (SBG) binaural beats script demuxer
  773. - OpenMG Audio muxer
  774. - Timecode extraction in DV and MOV
  775. - thumbnail video filter
  776. - XML output in ffprobe
  777. - asplit audio filter
  778. - tinterlace video filter
  779. - astreamsync audio filter
  780. - amerge audio filter
  781. - ISMV (Smooth Streaming) muxer
  782. - GSM audio parser
  783. - SMJPEG muxer
  784. - XWD encoder and decoder
  785. - Automatic thread count based on detection number of (available) CPU cores
  786. - y41p Brooktree Uncompressed 4:1:1 12-bit encoder and decoder
  787. - ffprobe -show_error option
  788. - Avid 1:1 10-bit RGB Packer codec
  789. - v308 Quicktime Uncompressed 4:4:4 encoder and decoder
  790. - yuv4 libquicktime packed 4:2:0 encoder and decoder
  791. - ffprobe -show_frames option
  792. - silencedetect audio filter
  793. - ffprobe -show_program_version, -show_library_versions, -show_versions options
  794. - rv34: frame-level multi-threading
  795. - optimized iMDCT transform on x86 using SSE for for mpegaudiodec
  796. - Improved PGS subtitle decoder
  797. - dumpgraph option to lavfi device
  798. - r210 and r10k encoders
  799. - ffwavesynth decoder
  800. - aviocat tool
  801. - ffeval tool
  802. - support encoding and decoding 4-channel SGI images
  803.  
  804.  
  805. version 0.9:
  806.  
  807. - openal input device added
  808. - boxblur filter added
  809. - BWF muxer
  810. - Flash Screen Video 2 decoder
  811. - lavfi input device added
  812. - added avconv, which is almost the same for now, except
  813. for a few incompatible changes in the options, which will hopefully make them
  814. easier to use. The changes are:
  815.     * The options placement is now strictly enforced! While in theory the
  816.       options for ffmpeg should be given in [input options] -i INPUT [output
  817.       options] OUTPUT order, in practice it was possible to give output options
  818.       before the -i and it mostly worked. Except when it didn't - the behavior was
  819.       a bit inconsistent. In avconv, it is not possible to mix input and output
  820.       options. All non-global options are reset after an input or output filename.
  821.     * All per-file options are now truly per-file - they apply only to the next
  822.       input or output file and specifying different values for different files
  823.       will now work properly (notably -ss and -t options).
  824.     * All per-stream options are now truly per-stream - it is possible to
  825.       specify which stream(s) should a given option apply to. See the Stream
  826.       specifiers section in the avconv manual for details.
  827.     * In ffmpeg some options (like -newvideo/-newaudio/...) are irregular in the
  828.       sense that they're specified after the output filename instead of before,
  829.       like all other options. In avconv this irregularity is removed, all options
  830.       apply to the next input or output file.
  831.     * -newvideo/-newaudio/-newsubtitle options were removed. Not only were they
  832.       irregular and highly confusing, they were also redundant. In avconv the -map
  833.       option will create new streams in the output file and map input streams to
  834.       them. E.g. avconv -i INPUT -map 0 OUTPUT will create an output stream for
  835.       each stream in the first input file.
  836.     * The -map option now has slightly different and more powerful syntax:
  837.         + Colons (':') are used to separate file index/stream type/stream index
  838.           instead of dots. Comma (',') is used to separate the sync stream instead
  839.           of colon.. This is done for consistency with other options.
  840.         + It's possible to specify stream type. E.g. -map 0:a:2 creates an
  841.           output stream from the third input audio stream.
  842.         + Omitting the stream index now maps all the streams of the given type,
  843.           not just the first. E.g. -map 0:s creates output streams for all the
  844.           subtitle streams in the first input file.
  845.         + Since -map can now match multiple streams, negative mappings were
  846.           introduced. Negative mappings disable some streams from an already
  847.           defined map. E.g. '-map 0 -map -0:a:1' means 'create output streams for
  848.           all the stream in the first input file, except for the second audio
  849.           stream'.
  850.     * There is a new option -c (or -codec) for choosing the decoder/encoder to
  851.       use, which makes it possible to precisely specify target stream(s) consistently with
  852.       other options. E.g. -c:v lib264 sets the codec for all video streams, -c:a:0
  853.       libvorbis sets the codec for the first audio stream and -c copy copies all
  854.       the streams without reencoding. Old -vcodec/-acodec/-scodec options are now
  855.       aliases to -c:v/a/s
  856.     * It is now possible to precisely specify which stream should an AVOption
  857.       apply to. E.g. -b:v:0 2M sets the bitrate for the first video stream, while
  858.       -b:a 128k sets the bitrate for all audio streams. Note that the old -ab 128k
  859.       syntax is deprecated and will stop working soon.
  860.     * -map_chapters now takes only an input file index and applies to the next
  861.       output file. This is consistent with how all the other options work.
  862.     * -map_metadata now takes only an input metadata specifier and applies to
  863.       the next output file. Output metadata specifier is now part of the option
  864.       name, similarly to the AVOptions/map/codec feature above.
  865.     * -metadata can now be used to set metadata on streams and chapters, e.g.
  866.       -metadata:s:1 language=eng sets the language of the first stream to 'eng'.
  867.       This made -vlang/-alang/-slang options redundant, so they were removed.
  868.     * -qscale option now uses stream specifiers and applies to all streams, not
  869.       just video. I.e. plain -qscale number would now apply to all streams. To get
  870.       the old behavior, use -qscale:v. Also there is now a shortcut -q for -qscale
  871.       and -aq is now an alias for -q:a.
  872.     * -vbsf/-absf/-sbsf options were removed and replaced by a -bsf option which
  873.       uses stream specifiers. Use -bsf:v/a/s instead of the old options.
  874.     * -itsscale option now uses stream specifiers, so its argument is only the
  875.       scale parameter.
  876.     * -intra option was removed, use -g 0 for the same effect.
  877.     * -psnr option was removed, use -flags +psnr for the same effect.
  878.     * -vf option is now an alias to the new -filter option, which uses stream specifiers.
  879.     * -vframes/-aframes/-dframes options are now aliases to the new -frames option.
  880.     * -vtag/-atag/-stag options are now aliases to the new -tag option.
  881. - XMV demuxer
  882. - LOAS demuxer
  883. - ashowinfo filter added
  884. - Windows Media Image decoder
  885. - amovie source added
  886. - LATM muxer/demuxer
  887. - Speex encoder via libspeex
  888. - JSON output in ffprobe
  889. - WTV muxer
  890. - Optional C++ Support (needed for libstagefright)
  891. - H.264 Decoding on Android via Stagefright
  892. - Prores decoder
  893. - BIN/XBIN/ADF/IDF text file decoder
  894. - aconvert audio filter added
  895. - audio support to lavfi input device added
  896. - libcdio-paranoia input device for audio CD grabbing
  897. - Apple ProRes decoder
  898. - CELT in Ogg demuxing
  899. - G.723.1 demuxer and decoder
  900. - libmodplug support (--enable-libmodplug)
  901. - VC-1 interlaced decoding
  902. - libutvideo wrapper (--enable-libutvideo)
  903. - aevalsrc audio source added
  904. - Ut Video decoder
  905. - Speex encoding via libspeex
  906. - 4:2:2 H.264 decoding support
  907. - 4:2:2 and 4:4:4 H.264 encoding with libx264
  908. - Pulseaudio input device
  909. - Prores encoder
  910. - Video Decoder Acceleration (VDA) HWAccel module.
  911. - replacement Indeo 3 decoder
  912. - new ffmpeg option: -map_channel
  913. - volume audio filter added
  914. - earwax audio filter added
  915. - libv4l2 support (--enable-libv4l2)
  916. - TLS/SSL and HTTPS protocol support
  917. - AVOptions API rewritten and documented
  918. - most of CODEC_FLAG2_*, some CODEC_FLAG_* and many codec-specific fields in
  919.   AVCodecContext deprecated. Codec private options should be used instead.
  920. - Properly working defaults in libx264 wrapper, support for native presets.
  921. - Encrypted OMA files support
  922. - Discworld II BMV decoding support
  923. - VBLE Decoder
  924. - OS X Video Decoder Acceleration (VDA) support
  925. - compact and csv output in ffprobe
  926. - pan audio filter
  927. - IFF Amiga Continuous Bitmap (ACBM) decoder
  928. - ass filter
  929. - CRI ADX audio format muxer and demuxer
  930. - Playstation Portable PMP format demuxer
  931. - Microsoft Windows ICO demuxer
  932. - life source
  933. - PCM format support in OMA demuxer
  934. - CLJR encoder
  935. - new option: -report
  936. - Dxtory capture format decoder
  937. - cellauto source
  938. - Simple segmenting muxer
  939. - Indeo 4 decoder
  940. - SMJPEG demuxer
  941.  
  942.  
  943. version 0.8:
  944.  
  945. - many many things we forgot because we rather write code than changelogs
  946. - WebM support in Matroska de/muxer
  947. - low overhead Ogg muxing
  948. - MMS-TCP support
  949. - VP8 de/encoding via libvpx
  950. - Demuxer for On2's IVF format
  951. - Pictor/PC Paint decoder
  952. - HE-AAC v2 decoder
  953. - HE-AAC v2 encoding with libaacplus
  954. - libfaad2 wrapper removed
  955. - DTS-ES extension (XCh) decoding support
  956. - native VP8 decoder
  957. - RTSP tunneling over HTTP
  958. - RTP depacketization of SVQ3
  959. - -strict inofficial replaced by -strict unofficial
  960. - ffplay -exitonkeydown and -exitonmousedown options added
  961. - native GSM / GSM MS decoder
  962. - RTP depacketization of QDM2
  963. - ANSI/ASCII art playback system
  964. - Lego Mindstorms RSO de/muxer
  965. - libavcore added (and subsequently removed)
  966. - SubRip subtitle file muxer and demuxer
  967. - Chinese AVS encoding via libxavs
  968. - ffprobe -show_packets option added
  969. - RTP packetization of Theora and Vorbis
  970. - RTP depacketization of MP4A-LATM
  971. - RTP packetization and depacketization of VP8
  972. - hflip filter
  973. - Apple HTTP Live Streaming demuxer
  974. - a64 codec
  975. - MMS-HTTP support
  976. - G.722 ADPCM audio encoder/decoder
  977. - R10k video decoder
  978. - ocv_smooth filter
  979. - frei0r wrapper filter
  980. - change crop filter syntax to width:height:x:y
  981. - make the crop filter accept parametric expressions
  982. - make ffprobe accept AVFormatContext options
  983. - yadif filter
  984. - blackframe filter
  985. - Demuxer for Leitch/Harris' VR native stream format (LXF)
  986. - RTP depacketization of the X-QT QuickTime format
  987. - SAP (Session Announcement Protocol, RFC 2974) muxer and demuxer
  988. - cropdetect filter
  989. - ffmpeg -crop* options removed
  990. - transpose filter added
  991. - ffmpeg -force_key_frames option added
  992. - demuxer for receiving raw rtp:// URLs without an SDP description
  993. - single stream LATM/LOAS decoder
  994. - setpts filter added
  995. - Win64 support for optimized x86 assembly functions
  996. - MJPEG/AVI1 to JPEG/JFIF bitstream filter
  997. - ASS subtitle encoder and decoder
  998. - IEC 61937 encapsulation for E-AC-3, TrueHD, DTS-HD (for HDMI passthrough)
  999. - overlay filter added
  1000. - rename aspect filter to setdar, and pixelaspect to setsar
  1001. - IEC 61937 demuxer
  1002. - Mobotix .mxg demuxer
  1003. - frei0r source added
  1004. - hqdn3d filter added
  1005. - RTP depacketization of QCELP
  1006. - FLAC parser added
  1007. - gradfun filter added
  1008. - AMR-WB decoder
  1009. - replace the ocv_smooth filter with a more generic ocv filter
  1010. - Windows Televison (WTV) demuxer
  1011. - FFmpeg metadata format muxer and demuxer
  1012. - SubRip (srt) subtitle encoder and decoder
  1013. - floating-point AC-3 encoder added
  1014. - Lagarith decoder
  1015. - ffmpeg -copytb option added
  1016. - IVF muxer added
  1017. - Wing Commander IV movies decoder added
  1018. - movie source added
  1019. - Bink version 'b' audio and video decoder
  1020. - Bitmap Brothers JV playback system
  1021. - Apple HTTP Live Streaming protocol handler
  1022. - sndio support for playback and record
  1023. - Linux framebuffer input device added
  1024. - Chronomaster DFA decoder
  1025. - DPX image encoder
  1026. - MicroDVD subtitle file muxer and demuxer
  1027. - Playstation Portable PMP format demuxer
  1028. - fieldorder video filter added
  1029. - AAC encoding via libvo-aacenc
  1030. - AMR-WB encoding via libvo-amrwbenc
  1031. - xWMA demuxer
  1032. - Mobotix MxPEG decoder
  1033. - VP8 frame-multithreading
  1034. - NEON optimizations for VP8
  1035. - Lots of deprecated API cruft removed
  1036. - fft and imdct optimizations for AVX (Sandy Bridge) processors
  1037. - showinfo filter added
  1038. - SMPTE 302M AES3 audio decoder
  1039. - Apple Core Audio Format muxer
  1040. - 9bit and 10bit per sample support in the H.264 decoder
  1041. - 9bit and 10bit FFV1 encoding / decoding
  1042. - split filter added
  1043. - select filter added
  1044. - sdl output device added
  1045. - libmpcodecs video filter support (3 times as many filters than before)
  1046. - mpeg2 aspect ratio dection fixed
  1047. - libxvid aspect pickiness fixed
  1048. - Frame multithreaded decoding
  1049. - E-AC-3 audio encoder
  1050. - ac3enc: add channel coupling support
  1051. - floating-point sample format support to the ac3, eac3, dca, aac, and vorbis decoders.
  1052. - H264/MPEG frame-level multi-threading
  1053. - All av_metadata_* functions renamed to av_dict_* and moved to libavutil
  1054. - 4:4:4 H.264 decoding support
  1055. - 10-bit H.264 optimizations for x86
  1056. - lut, lutrgb, and lutyuv filters added
  1057. - buffersink libavfilter sink added
  1058. - Bump libswscale for recently reported ABI break
  1059. - New J2K encoder (via OpenJPEG)
  1060.  
  1061.  
  1062. version 0.7:
  1063.  
  1064. - all the changes for 0.8, but keeping API/ABI compatibility with the 0.6 release
  1065.  
  1066.  
  1067. version 0.6:
  1068.  
  1069. - PB-frame decoding for H.263
  1070. - deprecated vhook subsystem removed
  1071. - deprecated old scaler removed
  1072. - VQF demuxer
  1073. - Alpha channel scaler
  1074. - PCX encoder
  1075. - RTP packetization of H.263
  1076. - RTP packetization of AMR
  1077. - RTP depacketization of Vorbis
  1078. - CorePNG decoding support
  1079. - Cook multichannel decoding support
  1080. - introduced avlanguage helpers in libavformat
  1081. - 8088flex TMV demuxer and decoder
  1082. - per-stream language-tags extraction in asfdec
  1083. - V210 decoder and encoder
  1084. - remaining GPL parts in AC-3 decoder converted to LGPL
  1085. - QCP demuxer
  1086. - SoX native format muxer and demuxer
  1087. - AMR-NB decoding/encoding, AMR-WB decoding via OpenCORE libraries
  1088. - DPX image decoder
  1089. - Electronic Arts Madcow decoder
  1090. - DivX (XSUB) subtitle encoder
  1091. - nonfree libamr support for AMR-NB/WB decoding/encoding removed
  1092. - experimental AAC encoder
  1093. - RTP depacketization of ASF and RTSP from WMS servers
  1094. - RTMP support in libavformat
  1095. - noX handling for OPT_BOOL X options
  1096. - Wave64 demuxer
  1097. - IEC-61937 compatible Muxer
  1098. - TwinVQ decoder
  1099. - Bluray (PGS) subtitle decoder
  1100. - LPCM support in MPEG-TS (HDMV RID as found on Blu-ray disks)
  1101. - WMA Pro decoder
  1102. - Core Audio Format demuxer
  1103. - ATRAC1 decoder
  1104. - MD STUDIO audio demuxer
  1105. - RF64 support in WAV demuxer
  1106. - MPEG-4 Audio Lossless Coding (ALS) decoder
  1107. - -formats option split into -formats, -codecs, -bsfs, and -protocols
  1108. - IV8 demuxer
  1109. - CDG demuxer and decoder
  1110. - R210 decoder
  1111. - Auravision Aura 1 and 2 decoders
  1112. - Deluxe Paint Animation playback system
  1113. - SIPR decoder
  1114. - Adobe Filmstrip muxer and demuxer
  1115. - RTP depacketization of H.263
  1116. - Bink demuxer and audio/video decoders
  1117. - enable symbol versioning by default for linkers that support it
  1118. - IFF PBM/ILBM bitmap decoder
  1119. - concat protocol
  1120. - Indeo 5 decoder
  1121. - RTP depacketization of AMR
  1122. - WMA Voice decoder
  1123. - ffprobe tool
  1124. - AMR-NB decoder
  1125. - RTSP muxer
  1126. - HE-AAC v1 decoder
  1127. - Kega Game Video (KGV1) decoder
  1128. - VorbisComment writing for FLAC, Ogg FLAC and Ogg Speex files
  1129. - RTP depacketization of Theora
  1130. - HTTP Digest authentication
  1131. - RTMP/RTMPT/RTMPS/RTMPE/RTMPTE protocol support via librtmp
  1132. - Psygnosis YOP demuxer and video decoder
  1133. - spectral extension support in the E-AC-3 decoder
  1134. - unsharp video filter
  1135. - RTP hinting in the mov/3gp/mp4 muxer
  1136. - Dirac in Ogg demuxing
  1137. - seek to keyframes in Ogg
  1138. - 4:2:2 and 4:4:4 Theora decoding
  1139. - 35% faster VP3/Theora decoding
  1140. - faster AAC decoding
  1141. - faster H.264 decoding
  1142. - RealAudio 1.0 (14.4K) encoder
  1143.  
  1144.  
  1145. version 0.5:
  1146.  
  1147. - DV50 AKA DVCPRO50 encoder, decoder, muxer and demuxer
  1148. - TechSmith Camtasia (TSCC) video decoder
  1149. - IBM Ultimotion (ULTI) video decoder
  1150. - Sierra Online audio file demuxer and decoder
  1151. - Apple QuickDraw (qdrw) video decoder
  1152. - Creative ADPCM audio decoder (16 bits as well as 8 bits schemes)
  1153. - Electronic Arts Multimedia (WVE/UV2/etc.) file demuxer
  1154. - Miro VideoXL (VIXL) video decoder
  1155. - H.261 video encoder
  1156. - QPEG video decoder
  1157. - Nullsoft Video (NSV) file demuxer
  1158. - Shorten audio decoder
  1159. - LOCO video decoder
  1160. - Apple Lossless Audio Codec (ALAC) decoder
  1161. - Winnov WNV1 video decoder
  1162. - Autodesk Animator Studio Codec (AASC) decoder
  1163. - Indeo 2 video decoder
  1164. - Fraps FPS1 video decoder
  1165. - Snow video encoder/decoder
  1166. - Sonic audio encoder/decoder
  1167. - Vorbis audio decoder
  1168. - Macromedia ADPCM decoder
  1169. - Duck TrueMotion 2 video decoder
  1170. - support for decoding FLX and DTA extensions in FLIC files
  1171. - H.264 custom quantization matrices support
  1172. - ffserver fixed, it should now be usable again
  1173. - QDM2 audio decoder
  1174. - Real Cooker audio decoder
  1175. - TrueSpeech audio decoder
  1176. - WMA2 audio decoder fixed, now all files should play correctly
  1177. - RealAudio 14.4 and 28.8 decoders fixed
  1178. - JPEG-LS decoder
  1179. - build system improvements
  1180. - tabs and trailing whitespace removed from the codebase
  1181. - CamStudio video decoder
  1182. - AIFF/AIFF-C audio format, encoding and decoding
  1183. - ADTS AAC file reading and writing
  1184. - Creative VOC file reading and writing
  1185. - American Laser Games multimedia (*.mm) playback system
  1186. - Zip Motion Blocks Video decoder
  1187. - improved Theora/VP3 decoder
  1188. - True Audio (TTA) decoder
  1189. - AVS demuxer and video decoder
  1190. - JPEG-LS encoder
  1191. - Smacker demuxer and decoder
  1192. - NuppelVideo/MythTV demuxer and RTjpeg decoder
  1193. - KMVC decoder
  1194. - MPEG-2 intra VLC support
  1195. - MPEG-2 4:2:2 encoder
  1196. - Flash Screen Video decoder
  1197. - GXF demuxer
  1198. - Chinese AVS decoder
  1199. - GXF muxer
  1200. - MXF demuxer
  1201. - VC-1/WMV3/WMV9 video decoder
  1202. - MacIntel support
  1203. - AviSynth support
  1204. - VMware video decoder
  1205. - VP5 video decoder
  1206. - VP6 video decoder
  1207. - WavPack lossless audio decoder
  1208. - Targa (.TGA) picture decoder
  1209. - Vorbis audio encoder
  1210. - Delphine Software .cin demuxer/audio and video decoder
  1211. - Tiertex .seq demuxer/video decoder
  1212. - MTV demuxer
  1213. - TIFF picture encoder and decoder
  1214. - GIF picture decoder
  1215. - Intel Music Coder decoder
  1216. - Zip Motion Blocks Video encoder
  1217. - Musepack decoder
  1218. - Flash Screen Video encoder
  1219. - Theora encoding via libtheora
  1220. - BMP encoder
  1221. - WMA encoder
  1222. - GSM-MS encoder and decoder
  1223. - DCA decoder
  1224. - DXA demuxer and decoder
  1225. - DNxHD decoder
  1226. - Gamecube movie (.THP) playback system
  1227. - Blackfin optimizations
  1228. - Interplay C93 demuxer and video decoder
  1229. - Bethsoft VID demuxer and video decoder
  1230. - CRYO APC demuxer
  1231. - ATRAC3 decoder
  1232. - V.Flash PTX decoder
  1233. - RoQ muxer, RoQ audio encoder
  1234. - Renderware TXD demuxer and decoder
  1235. - extern C declarations for C++ removed from headers
  1236. - sws_flags command line option
  1237. - codebook generator
  1238. - RoQ video encoder
  1239. - QTRLE encoder
  1240. - OS/2 support removed and restored again
  1241. - AC-3 decoder
  1242. - NUT muxer
  1243. - additional SPARC (VIS) optimizations
  1244. - Matroska muxer
  1245. - slice-based parallel H.264 decoding
  1246. - Monkey's Audio demuxer and decoder
  1247. - AMV audio and video decoder
  1248. - DNxHD encoder
  1249. - H.264 PAFF decoding
  1250. - Nellymoser ASAO decoder
  1251. - Beam Software SIFF demuxer and decoder
  1252. - libvorbis Vorbis decoding removed in favor of native decoder
  1253. - IntraX8 (J-Frame) subdecoder for WMV2 and VC-1
  1254. - Ogg (Theora, Vorbis and FLAC) muxer
  1255. - The "device" muxers and demuxers are now in a new libavdevice library
  1256. - PC Paintbrush PCX decoder
  1257. - Sun Rasterfile decoder
  1258. - TechnoTrend PVA demuxer
  1259. - Linux Media Labs MPEG-4 (LMLM4) demuxer
  1260. - AVM2 (Flash 9) SWF muxer
  1261. - QT variant of IMA ADPCM encoder
  1262. - VFW grabber
  1263. - iPod/iPhone compatible mp4 muxer
  1264. - Mimic decoder
  1265. - MSN TCP Webcam stream demuxer
  1266. - RL2 demuxer / decoder
  1267. - IFF demuxer
  1268. - 8SVX audio decoder
  1269. - non-recursive Makefiles
  1270. - BFI demuxer
  1271. - MAXIS EA XA (.xa) demuxer / decoder
  1272. - BFI video decoder
  1273. - OMA demuxer
  1274. - MLP/TrueHD decoder
  1275. - Electronic Arts CMV decoder
  1276. - Motion Pixels Video decoder
  1277. - Motion Pixels MVI demuxer
  1278. - removed animated GIF decoder/demuxer
  1279. - D-Cinema audio muxer
  1280. - Electronic Arts TGV decoder
  1281. - Apple Lossless Audio Codec (ALAC) encoder
  1282. - AAC decoder
  1283. - floating point PCM encoder/decoder
  1284. - MXF muxer
  1285. - DV100 AKA DVCPRO HD decoder and demuxer
  1286. - E-AC-3 support added to AC-3 decoder
  1287. - Nellymoser ASAO encoder
  1288. - ASS and SSA demuxer and muxer
  1289. - liba52 wrapper removed
  1290. - SVQ3 watermark decoding support
  1291. - Speex decoding via libspeex
  1292. - Electronic Arts TGQ decoder
  1293. - RV40 decoder
  1294. - QCELP / PureVoice decoder
  1295. - RV30 decoder
  1296. - hybrid WavPack support
  1297. - R3D REDCODE demuxer
  1298. - ALSA support for playback and record
  1299. - Electronic Arts TQI decoder
  1300. - OpenJPEG based JPEG 2000 decoder
  1301. - NC (NC4600) camera file demuxer
  1302. - Gopher client support
  1303. - MXF D-10 muxer
  1304. - generic metadata API
  1305. - flash ScreenVideo2 encoder
  1306.  
  1307.  
  1308. version 0.4.9-pre1:
  1309.  
  1310. - DV encoder, DV muxer
  1311. - Microsoft RLE video decoder
  1312. - Microsoft Video-1 decoder
  1313. - Apple Animation (RLE) decoder
  1314. - Apple Graphics (SMC) decoder
  1315. - Apple Video (RPZA) decoder
  1316. - Cinepak decoder
  1317. - Sega FILM (CPK) file demuxer
  1318. - Westwood multimedia support (VQA & AUD files)
  1319. - Id Quake II CIN playback support
  1320. - 8BPS video decoder
  1321. - FLIC playback support
  1322. - RealVideo 2.0 (RV20) decoder
  1323. - Duck TrueMotion v1 (DUCK) video decoder
  1324. - Sierra VMD demuxer and video decoder
  1325. - MSZH and ZLIB decoder support
  1326. - SVQ1 video encoder
  1327. - AMR-WB support
  1328. - PPC optimizations
  1329. - rate distortion optimal cbp support
  1330. - rate distorted optimal ac prediction for MPEG-4
  1331. - rate distorted optimal lambda->qp support
  1332. - AAC encoding with libfaac
  1333. - Sunplus JPEG codec (SP5X) support
  1334. - use Lagrange multipler instead of QP for ratecontrol
  1335. - Theora/VP3 decoding support
  1336. - XA and ADX ADPCM codecs
  1337. - export MPEG-2 active display area / pan scan
  1338. - Add support for configuring with IBM XLC
  1339. - floating point AAN DCT
  1340. - initial support for zygo video (not complete)
  1341. - RGB ffv1 support
  1342. - new audio/video parser API
  1343. - av_log() system
  1344. - av_read_frame() and av_seek_frame() support
  1345. - missing last frame fixes
  1346. - seek by mouse in ffplay
  1347. - noise reduction of DCT coefficients
  1348. - H.263 OBMC & 4MV support
  1349. - H.263 alternative inter vlc support
  1350. - H.263 loop filter
  1351. - H.263 slice structured mode
  1352. - interlaced DCT support for MPEG-2 encoding
  1353. - stuffing to stay above min_bitrate
  1354. - MB type & QP visualization
  1355. - frame stepping for ffplay
  1356. - interlaced motion estimation
  1357. - alternate scantable support
  1358. - SVCD scan offset support
  1359. - closed GOP support
  1360. - SSE2 FDCT
  1361. - quantizer noise shaping
  1362. - G.726 ADPCM audio codec
  1363. - MS ADPCM encoding
  1364. - multithreaded/SMP motion estimation
  1365. - multithreaded/SMP encoding for MPEG-1/MPEG-2/MPEG-4/H.263
  1366. - multithreaded/SMP decoding for MPEG-2
  1367. - FLAC decoder
  1368. - Metrowerks CodeWarrior suppport
  1369. - H.263+ custom pcf support
  1370. - nicer output for 'ffmpeg -formats'
  1371. - Matroska demuxer
  1372. - SGI image format, encoding and decoding
  1373. - H.264 loop filter support
  1374. - H.264 CABAC support
  1375. - nicer looking arrows for the motion vector visualization
  1376. - improved VCD support
  1377. - audio timestamp drift compensation
  1378. - MPEG-2 YUV 422/444 support
  1379. - polyphase kaiser windowed sinc and blackman nuttall windowed sinc audio resample
  1380. - better image scaling
  1381. - H.261 support
  1382. - correctly interleave packets during encoding
  1383. - VIS optimized motion compensation
  1384. - intra_dc_precision>0 encoding support
  1385. - support reuse of motion vectors/MB types/field select values of the source video
  1386. - more accurate deblock filter
  1387. - padding support
  1388. - many optimizations and bugfixes
  1389. - FunCom ISS audio file demuxer and according ADPCM decoding
  1390.  
  1391.  
  1392. version 0.4.8:
  1393.  
  1394. - MPEG-2 video encoding (Michael)
  1395. - Id RoQ playback subsystem (Mike Melanson and Tim Ferguson)
  1396. - Wing Commander III Movie (.mve) file playback subsystem (Mike Melanson
  1397.   and Mario Brito)
  1398. - Xan DPCM audio decoder (Mario Brito)
  1399. - Interplay MVE playback subsystem (Mike Melanson)
  1400. - Duck DK3 and DK4 ADPCM audio decoders (Mike Melanson)
  1401.  
  1402.  
  1403. version 0.4.7:
  1404.  
  1405. - RealAudio 1.0 (14_4) and 2.0 (28_8) native decoders. Author unknown, code from mplayerhq
  1406.   (originally from public domain player for Amiga at http://www.honeypot.net/audio)
  1407. - current version now also compiles with older GCC (Fabrice)
  1408. - 4X multimedia playback system including 4xm file demuxer (Mike
  1409.   Melanson), and 4X video and audio codecs (Michael)
  1410. - Creative YUV (CYUV) decoder (Mike Melanson)
  1411. - FFV1 codec (our very simple lossless intra only codec, compresses much better
  1412.   than HuffYUV) (Michael)
  1413. - ASV1 (Asus), H.264, Intel indeo3 codecs have been added (various)
  1414. - tiny PNG encoder and decoder, tiny GIF decoder, PAM decoder (PPM with
  1415.   alpha support), JPEG YUV colorspace support. (Fabrice Bellard)
  1416. - ffplay has been replaced with a newer version which uses SDL (optionally)
  1417.   for multiplatform support (Fabrice)
  1418. - Sorenson Version 3 codec (SVQ3) support has been added (decoding only) - donated
  1419.   by anonymous
  1420. - AMR format has been added (Johannes Carlsson)
  1421. - 3GP support has been added (Johannes Carlsson)
  1422. - VP3 codec has been added (Mike Melanson)
  1423. - more MPEG-1/2 fixes
  1424. - better multiplatform support, MS Visual Studio fixes (various)
  1425. - AltiVec optimizations (Magnus Damn and others)
  1426. - SH4 processor support has been added (BERO)
  1427. - new public interfaces (avcodec_get_pix_fmt) (Roman Shaposhnick)
  1428. - VOB streaming support (Brian Foley)
  1429. - better MP3 autodetection (Andriy Rysin)
  1430. - qpel encoding (Michael)
  1431. - 4mv+b frames encoding finally fixed (Michael)
  1432. - chroma ME (Michael)
  1433. - 5 comparison functions for ME (Michael)
  1434. - B-frame encoding speedup (Michael)
  1435. - WMV2 codec (unfinished - Michael)
  1436. - user specified diamond size for EPZS (Michael)
  1437. - Playstation STR playback subsystem, still experimental (Mike and Michael)
  1438. - ASV2 codec (Michael)
  1439. - CLJR decoder (Alex)
  1440.  
  1441. .. And lots more new enhancements and fixes.
  1442.  
  1443.  
  1444. version 0.4.6:
  1445.  
  1446. - completely new integer only MPEG audio layer 1/2/3 decoder rewritten
  1447.   from scratch
  1448. - Recoded DCT and motion vector search with gcc (no longer depends on nasm)
  1449. - fix quantization bug in AC3 encoder
  1450. - added PCM codecs and format. Corrected WAV/AVI/ASF PCM issues
  1451. - added prototype ffplay program
  1452. - added GOB header parsing on H.263/H.263+ decoder (Juanjo)
  1453. - bug fix on MCBPC tables of H.263 (Juanjo)
  1454. - bug fix on DC coefficients of H.263 (Juanjo)
  1455. - added Advanced Prediction Mode on H.263/H.263+ decoder (Juanjo)
  1456. - now we can decode H.263 streams found in QuickTime files (Juanjo)
  1457. - now we can decode H.263 streams found in VIVO v1 files(Juanjo)
  1458. - preliminary RTP "friendly" mode for H.263/H.263+ coding. (Juanjo)
  1459. - added GOB header for H.263/H.263+ coding on RTP mode (Juanjo)
  1460. - now H.263 picture size is returned on the first decoded frame (Juanjo)
  1461. - added first regression tests
  1462. - added MPEG-2 TS demuxer
  1463. - new demux API for libav
  1464. - more accurate and faster IDCT (Michael)
  1465. - faster and entropy-controlled motion search (Michael)
  1466. - two pass video encoding (Michael)
  1467. - new video rate control (Michael)
  1468. - added MSMPEG4V1, MSMPEGV2 and WMV1 support (Michael)
  1469. - great performance improvement of video encoders and decoders (Michael)
  1470. - new and faster bit readers and vlc parsers (Michael)
  1471. - high quality encoding mode: tries all macroblock/VLC types (Michael)
  1472. - added DV video decoder
  1473. - preliminary RTP/RTSP support in ffserver and libavformat
  1474. - H.263+ AIC decoding/encoding support (Juanjo)
  1475. - VCD MPEG-PS mode (Juanjo)
  1476. - PSNR stuff (Juanjo)
  1477. - simple stats output (Juanjo)
  1478. - 16-bit and 15-bit RGB/BGR/GBR support (Bisqwit)
  1479.  
  1480.  
  1481. version 0.4.5:
  1482.  
  1483. - some header fixes (Zdenek Kabelac <kabi at informatics.muni.cz>)
  1484. - many MMX optimizations (Nick Kurshev <nickols_k at mail.ru>)
  1485. - added configure system (actually a small shell script)
  1486. - added MPEG audio layer 1/2/3 decoding using LGPL'ed mpglib by
  1487.   Michael Hipp (temporary solution - waiting for integer only
  1488.   decoder)
  1489. - fixed VIDIOCSYNC interrupt
  1490. - added Intel H.263 decoding support ('I263' AVI fourCC)
  1491. - added Real Video 1.0 decoding (needs further testing)
  1492. - simplified image formats again. Added PGM format (=grey
  1493.   pgm). Renamed old PGM to PGMYUV.
  1494. - fixed msmpeg4 slice issues (tell me if you still find problems)
  1495. - fixed OpenDivX bugs with newer versions (added VOL header decoding)
  1496. - added support for MPlayer interface
  1497. - added macroblock skip optimization
  1498. - added MJPEG decoder
  1499. - added mmx/mmxext IDCT from libmpeg2
  1500. - added pgmyuvpipe, ppm, and ppm_pipe formats (original patch by Celer
  1501.   <celer at shell.scrypt.net>)
  1502. - added pixel format conversion layer (e.g. for MJPEG or PPM)
  1503. - added deinterlacing option
  1504. - MPEG-1/2 fixes
  1505. - MPEG-4 vol header fixes (Jonathan Marsden <snmjbm at pacbell.net>)
  1506. - ARM optimizations (Lionel Ulmer <lionel.ulmer at free.fr>).
  1507. - Windows porting of file converter
  1508. - added MJPEG raw format (input/output)
  1509. - added JPEG image format support (input/output)
  1510.  
  1511.  
  1512. version 0.4.4:
  1513.  
  1514. - fixed some std header definitions (Bjorn Lindgren
  1515.   <bjorn.e.lindgren at telia.com>).
  1516. - added MPEG demuxer (MPEG-1 and 2 compatible).
  1517. - added ASF demuxer
  1518. - added prototype RM demuxer
  1519. - added AC3 decoding (done with libac3 by Aaron Holtzman)
  1520. - added decoding codec parameter guessing (.e.g. for MPEG, because the
  1521.   header does not include them)
  1522. - fixed header generation in MPEG-1, AVI and ASF muxer: wmplayer can now
  1523.   play them (only tested video)
  1524. - fixed H.263 white bug
  1525. - fixed phase rounding in img resample filter
  1526. - add MMX code for polyphase img resample filter
  1527. - added CPU autodetection
  1528. - added generic title/author/copyright/comment string handling (ASF and RM
  1529.   use them)
  1530. - added SWF demux to extract MP3 track (not usable yet because no MP3
  1531.   decoder)
  1532. - added fractional frame rate support
  1533. - codecs are no longer searched by read_header() (should fix ffserver
  1534.   segfault)
  1535.  
  1536.  
  1537. version 0.4.3:
  1538.  
  1539. - BGR24 patch (initial patch by Jeroen Vreeken <pe1rxq at amsat.org>)
  1540. - fixed raw yuv output
  1541. - added motion rounding support in MPEG-4
  1542. - fixed motion bug rounding in MSMPEG4
  1543. - added B-frame handling in video core
  1544. - added full MPEG-1 decoding support
  1545. - added partial (frame only) MPEG-2 support
  1546. - changed the FOURCC code for H.263 to "U263" to be able to see the
  1547.   +AVI/H.263 file with the UB Video H.263+ decoder. MPlayer works with
  1548.   this +codec ;) (JuanJo).
  1549. - Halfpel motion estimation after MB type selection (JuanJo)
  1550. - added pgm and .Y.U.V output format
  1551. - suppressed 'img:' protocol. Simply use: /tmp/test%d.[pgm|Y] as input or
  1552.   output.
  1553. - added pgmpipe I/O format (original patch from Martin Aumueller
  1554.   <lists at reserv.at>, but changed completely since we use a format
  1555.   instead of a protocol)
  1556.  
  1557.  
  1558. version 0.4.2:
  1559.  
  1560. - added H.263/MPEG-4/MSMPEG4 decoding support. MPEG-4 decoding support
  1561.   (for OpenDivX) is almost complete: 8x8 MVs and rounding are
  1562.   missing. MSMPEG4 support is complete.
  1563. - added prototype MPEG-1 decoder. Only I- and P-frames handled yet (it
  1564.   can decode ffmpeg MPEGs :-)).
  1565. - added libavcodec API documentation (see apiexample.c).
  1566. - fixed image polyphase bug (the bottom of some images could be
  1567.   greenish)
  1568. - added support for non clipped motion vectors (decoding only)
  1569.   and image sizes non-multiple of 16
  1570. - added support for AC prediction (decoding only)
  1571. - added file overwrite confirmation (can be disabled with -y)
  1572. - added custom size picture to H.263 using H.263+ (Juanjo)
  1573.  
  1574.  
  1575. version 0.4.1:
  1576.  
  1577. - added MSMPEG4 (aka DivX) compatible encoder. Changed default codec
  1578.   of AVI and ASF to DIV3.
  1579. - added -me option to set motion estimation method
  1580.   (default=log). suppressed redundant -hq option.
  1581. - added options -acodec and -vcodec to force a given codec (useful for
  1582.   AVI for example)
  1583. - fixed -an option
  1584. - improved dct_quantize speed
  1585. - factorized some motion estimation code
  1586.  
  1587.  
  1588. version 0.4.0:
  1589.  
  1590. - removing grab code from ffserver and moved it to ffmpeg. Added
  1591.   multistream support to ffmpeg.
  1592. - added timeshifting support for live feeds (option ?date=xxx in the
  1593.   URL)
  1594. - added high quality image resize code with polyphase filter (need
  1595.   mmx/see optimization). Enable multiple image size support in ffserver.
  1596. - added multi live feed support in ffserver
  1597. - suppressed master feature from ffserver (it should be done with an
  1598.   external program which opens the .ffm url and writes it to another
  1599.   ffserver)
  1600. - added preliminary support for video stream parsing (WAV and AVI half
  1601.   done). Added proper support for audio/video file conversion in
  1602.   ffmpeg.
  1603. - added preliminary support for video file sending from ffserver
  1604. - redesigning I/O subsystem: now using URL based input and output
  1605.   (see avio.h)
  1606. - added WAV format support
  1607. - added "tty user interface" to ffmpeg to stop grabbing gracefully
  1608. - added MMX/SSE optimizations to SAD (Sums of Absolutes Differences)
  1609.   (Juan J. Sierralta P. a.k.a. "Juanjo" <juanjo at atmlab.utfsm.cl>)
  1610. - added MMX DCT from mpeg2_movie 1.5 (Juanjo)
  1611. - added new motion estimation algorithms, log and phods (Juanjo)
  1612. - changed directories: libav for format handling, libavcodec for
  1613.   codecs
  1614.  
  1615.  
  1616. version 0.3.4:
  1617.  
  1618. - added stereo in MPEG audio encoder
  1619.  
  1620.  
  1621. version 0.3.3:
  1622.  
  1623. - added 'high quality' mode which use motion vectors. It can be used in
  1624.   real time at low resolution.
  1625. - fixed rounding problems which caused quality problems at high
  1626.   bitrates and large GOP size
  1627.  
  1628.  
  1629. version 0.3.2: small fixes
  1630.  
  1631. - ASF fixes
  1632. - put_seek bug fix
  1633.  
  1634.  
  1635. version 0.3.1: added avi/divx support
  1636.  
  1637. - added AVI support
  1638. - added MPEG-4 codec compatible with OpenDivX. It is based on the H.263 codec
  1639. - added sound for flash format (not tested)
  1640.  
  1641.  
  1642. version 0.3: initial public release
  1643.