软件包: libswresample-dev (7:4.4.1-3ubuntu5)

FFmpeg library for audio resampling, rematrixing etc. - development files

FFmpeg is the leading multimedia framework, able to decode, encode, transcode, mux, demux, stream, filter and play pretty much anything that humans and machines have created. It supports the most obscure ancient formats up to the cutting edge.

This library performs highly optimized audio resampling, rematrixing and sample format conversion operations. Specifically, this library performs the following conversions:

 * Resampling is the process of changing the audio rate, for example from a
   high sample rate of 44100Hz to 8000Hz. Audio conversion from high to low
   sample rate is a lossy process. Several resampling options and algorithms
   are available.
 * Rematrixing is the process of changing the channel layout, for example from
   stereo to mono. When the input channels cannot be mapped to the output
   streams, the process is lossy, since it involves different gain factors
   and mixing. Various other audio conversions (e.g. stretching and padding)
   are enabled through dedicated options.
 * Format conversion is the process of converting the type of samples, for
   example from 16-bit signed samples to unsigned 8-bit or float samples.
   It also handles packing conversion, when passing from packed layout (all
   samples belonging to distinct channels interleaved in the same buffer), to
   planar layout (all samples belonging to the same channel stored in a
   dedicated buffer or "plane").

This package contains the development files.