Similar to pa_channel_map_init_auto() but instead of failing if no
* default mapping is known with the specified parameters it will
* synthesize a mapping based on a known mapping with fewer channels
* and fill up the rest with AUX0...AUX31 channels \since 0.9.11
Similar to pa_channel_map_init_auto() but instead of failing if no * default mapping is known with the specified parameters it will * synthesize a mapping based on a known mapping with fewer channels * and fill up the rest with AUX0...AUX31 channels \since 0.9.11