the latest version of ffmpeg sdk, there are detailed description of optimized efficiency. You can call directly for a variety of decoding and encoding format.

ffmpeg_full_SDK_V3.0
....................\include
....................\.......\adler32.h
....................\.......\allcodecs.h
....................\.......\avcodec.h
....................\.......\avformat.h
....................\.......\avio.h
....................\.......\avstring.h
....................\.......\avutil.h
....................\.......\base64.h
....................\.......\common.h
....................\.......\fifo.h
....................\.......\integer.h
....................\.......\intfloat_readwrite.h
....................\.......\inttypes.h
....................\.......\log.h
....................\.......\lzo.h
....................\.......\mathematics.h
....................\.......\md5.h
....................\.......\mem.h
....................\.......\opt.h
....................\.......\random.h
....................\.......\rational.h
....................\.......\rgb2rgb.h
....................\.......\rtp.h
....................\.......\rtsp.h
....................\.......\rtspcodes.h
....................\.......\stdint.h
....................\.......\swscale.h
....................\Libs
....................\....\avcodec.dll
....................\....\avcodec.lib
....................\....\avformat.dll
....................\....\avformat.lib
....................\....\avutil.dll
....................\....\avutil.lib
....................\....\ffmpeg.exe
....................\Readme.txt

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