Extra buffer metadata describing audio downmixing matrix. This metadata is
attached to audio buffers and contains a matrix to downmix the buffer number
of channels to channels.
matrix is an two-dimensional array of to_channels times from_channels
coefficients, i.e. the i-th output channels is constructed by multiplicating
the input channels with the coefficients in matrix[i] and taking the sum
of the results.
Extra buffer metadata describing audio downmixing matrix. This metadata is attached to audio buffers and contains a matrix to downmix the buffer number of channels to
channels.matrixis an two-dimensional array ofto_channelstimesfrom_channelscoefficients, i.e. the i-th output channels is constructed by multiplicating the input channels with the coefficients inmatrix[i] and taking the sum of the results.