version : - DV encoder, DV muxer - Microsoft RLE video decoder - Microsoft Video-1 decoder - Apple Video (RPZA) decoder - Cinepak decoder - Sega FILM (CPK) file demuxer - Westwood multimedia support (VQA/AUD file demuxer, audio decoder) version 0.4.8: - MPEG2 video encoding (Michael) - Id RoQ playback subsystem (Mike Melanson and Tim Ferguson) - Wing Commander III Movie (.mve) file playback subsystem (Mike Melanson and Mario Brito) - Xan DPCM audio decoder (Mario Brito) - Interplay MVE playback subsystem (Mike Melanson) - Duck DK3 and DK4 ADPCM audio decoders (Mike Melanson) version 0.4.7: - RealAudio 1.0 (14_4) and 2.0 (28_8) native decoders. Author unknown, code from a mplayerhq (originally from public domain player for Amiga at http://www.honeypot.net/audio) - Current version now also compiles with older GCC (Fabrice) - 4X multimedia playback system including 4xm file demuxer (Mike Melanson), and 4X video and audio codecs (Michael) - Creative YUV (CYUV) decoder (Mike Melanson) - FFV1 codec (our very simple lossless intra only codec, compresses much better then huffyuv) (Michael) - ASV1 (Asus), H.264, Intel indeo3 codecs has been added (Various) - Tiny PNG encoder and decoder, tiny GIF decoder, PAM decoder (PPM with alpha support), JPEG YUV colorspace support. (Fabrice Bellard) - ffplay has been replaced with a newer version which uses SDL (optionally) for multi platform support (fabrice) - Sorenson Version 3 codec (SVQ3) support has been added (decoding only) - donated by anonymous - AMR format has been added (Johannes Carlsson) - 3gp support has been added (Johannes Carlsson) - VP3 codec has been added (Mike Melanson) - more MPEG-1/2 fixes - Better Multi platform support, MS Visual Studio fixes (various) - Altivec optimizations (Magnus Damn and others) - SH4 processor support has been added (BERO) - New public interfaces (avcodec_get_pix_fmt) (Roman Shaposhnick) - VOB Streaming support (Brian Foley) - Better MP3 Autodetection (Andriy Rysin) - qpel encoding (Michael) - 4mv+b frames encoding finally fixed (Michael) - chroma ME (Michael) - 5 comparission functions for ME (Michael) - b frame encoding speedup (Michael) - wmv2 codec (unfinished - Michael) - user specified diamond size for EPZS (Michael) - Playstation STR playback subsystem, still experimental (Mike and Michael) - ASV2 codec (Michael) - CLJR decoder (Alex) .. And lots more new enhances and fixes. version 0.4.6: - completely new integer only mpeg audio layer 1/2/3 decoder rewritten from scratch. - recoded dct and motion vector search with gcc (no longer depends on nasm). - fix quantization bug in AC3 encoder. - added PCM codecs and format. Corrected wav/avi/asf pcm issues. - added prototype ffplay program. - added GOB header parsing on H.263/H.263+ decoder. (Juanjo) - bug fix on MCBPC tables of H.263. (Juanjo) - bug fix on DC coefficients of H.263. (Juanjo) - added Advanced Prediction Mode on H.263/H.263+ decoder. (Juanjo) - now we can decode H.263 streams found on QuickTime files. (Juanjo) - now we can decode H.263 streams found on VIVO v1 files.(Juanjo) - preliminary RTP "friendly" mode for H.263/H.263+ coding. (Juanjo) - added GOB header for H.263/H.263+ coding on RTP mode. (Juanjo) - now H.263 picture size is returned on the first decoded frame. (Juanjo) - added first regression tests - added MPEG2 TS demux - new demux API for libav - more accurate and faster IDCT (Michael) - faster and entropy controlled motion search (Michael) - two pass video encoding (Michael) - new video rate control (Michael) - added MSMPEG4V1, MSMPEGV2 and WMV1 support (Michael) - great performance improvement of video encoders and decoders (Michael) - new and faster bit readers and vlc parsers (Michael) - high quality encoding mode : tries all macroblock/VLC types (Michael) - added DV video decoder - preliminary RTP/RTSP support in ffserver and libavformat - H.263+ AIC decoding/encoding support. (Juanjo) - VCD MPEG-PS mode. (Juanjo) - PSNR stuff. (Juanjo) - Simple stats output. (Juanjo) - 16-bit and 15-bit rgb/bgr/gbr support (Bisqwit) version 0.4.5: - some header fixes (Zdenek Kabelac <kabi@informatics.muni.cz>). - many MMX optimizations (Nick Kurshev <nickols_k@mail.ru>). - added configure system (actually a small shell script). - added mpeg audio layer 1/2/3 decoding using LGPL'ed mpglib by Michael Hipp (temporary solution - waiting for integer only decoder). - fixed VIDIOCSYNC interrupt. - added Intel H263 decoding support ('I263' avi fourCC) - added Real Video 1.0 decoding (needs further testing). - simplified image formats again. Added PGM format (=grey pgm). Renamed old PGM to PGMYUV. - fixed msmpeg4 slice issues (tell me if you still find problems). - fixed opendivx bugs with newer versions (added VOL header decoding). - added support for mplayer interface. - added macroblock skip optimization. - added MJPEG decoder. - added mmx/mmxext idct from libmpeg2. - added pgmyuvpipe, ppm, and ppm_pipe formats (original patch by Celer <celer@shell.scrypt.net>). - added pixel format convertion layer (e.g. for MJPEG or PPM). - added deinterlacing option. - mpeg1/2 fixes. - mpeg4 vol header fixes (Jonathan Marsden <snmjbm@pacbell.net>). - ARM optimizations (Lionel Ulmer <lionel.ulmer@free.fr>). - Windows porting of file converter. - added MJPEG raw format (input/ouput). - added JPEG image format support (input/output). version 0.4.4: - fixed some std header definitions (Bjorn Lindgren <bjorn.e.lindgren@telia.com>). - added mpeg demux (mpeg 1 and 2 compatible). - added ASF demux. - added prototype RM demux. - added AC3 decoding (done with libac3 by Aaron Holtzman). - added decoding codec parameter guessing (.e.g. for mpeg, because the header does not include them). - fixed header generation in mpeg1, AVI and ASF mux : wmplayer can now play them (only tested video). - fixed h263 white bug. - fixed phase rounding in img resample filter. - add mmx code for polyphase img resample filter. - added CPU autodetect. - added generic title/author/copyright/comment string handling (ASF and RM use them). - added SWF demux to extract MP3 track (not usable yet because no MP3 decoder). - added fractional frame rate support. - codecs are no longer searched by read_header() (should fix ffserver segfault). version 0.4.3: - BGR24 patch (initial patch by Jeroen Vreeken <pe1rxq@amsat.org>). - fixed raw yuv output. - added motion rounding support in MPEG4. - fixed motion bug rounding in MSMPEG4. - added B frame handling in video core. - added full MPEG1 decoding support. - added partial (frame only) MPEG2 support. - changed the FOURCC code for H.263 to "U263" to be able to see the +AVI/H.263 file with the UB Video H.263+ decoder. MPlayer works with this +codec ;) (JuanJo). - Halfpel motion estimation after mb type selection (JuanJo). - added pgm and .Y.U.V output format. - suppressed 'img:' protocol. Simply use: /tmp/test%d.[pgm|Y] as input or output. - added pgmpipe I/O format (original patch from Martin Aumueller <lists@reserv.at>, but changed completely since we use a format instead of a protocol). version 0.4.2: - added H263/MPEG4/MSMPEG4 decoding support. MPEG4 decoding support (for openDIVX) is almost complete: 8x8 MVs and rounding are missing. MSMPEG4 support is complete. - added prototype MPEG1 decoder. Only I and P frames handled yet (it can decode ffmpeg mpegs :-)). - added libavcodec API documentation (see apiexample.c). - fixed image polyphase bug (the bottom of some images could be greenish). - added support for non clipped motion vectors (decoding only) and image sizes non multiple of 16. - added support for AC prediction (decoding only). - added file overwrite confirmation (can be disabled with -y). - Added custom size picture to H.263 using H.263+ (Juanjo). version 0.4.1: - added MSMPEG4 (aka DIVX) compatible encoder. Changed default codec of avi and asf to DIV3. - added -me option to set motion estimation method (default=log). suppressed redundant -hq option. - added options -acodec and -vcodec to force a given codec (useful for AVI for example). - fixed -an option. - improved dct_quantize speed. - factorized some motion estimation code. version 0.4.0: - removing grab code from ffserver and moved it to ffmpeg. Added multi stream support to ffmpeg. - added timeshifting support for live feeds (option ?date=xxx in the URL). - added high quality image resize code with polyphase filter (need mmx/see optimisation). Enable multiple image size support in ffserver. - added multi live feed support in ffserver. - suppressed master feature from ffserver (it should be done with an external program which opens the .ffm url and writes it to another ffserver). - added preliminary support for video stream parsing (wav and avi half done). Added proper support for audio/video file convertion in ffmpeg. - added preliminary support for video file sending from ffserver. - redesigning I/O subsystem : now using URL based input and output (see avio.h). - added wav format support. - added "tty user interface" to ffmpeg to stop grabbing gracefully. - added MMX/SSE optimizations to SAD (Sums of Absolutes Diferences) (Juan J. Sierralta P. a.k.a. "Juanjo" <juanjo@atmlab.utfsm.cl>). - added MMX DCT from mpeg2_movie 1.5 (Juanjo). - added new motion estimation algorithms, log and phods (Juanjo). - changed directories : libav for format handling, libavcodec for codecs. version 0.3.4: - added stereo in mpeg audio encoder. version 0.3.3: - added 'high quality' mode which use motion vectors. It can be used in real time at low resolution. - fixed rounding problems which caused quality problems at high bitrates and large gop size. version 0.3.2: small fixes - asf fixes - put_seek bug fix version 0.3.1: added avi/divx support - added avi support - added mpeg4 codec compatible with open divx. It is based on the h263 codec. - added sound for flash format (not tested) version 0.3: initial public release