when i use the code below.
status_t ALSAStreamOps::channelCount(int channels) {
int err;
if (!mHandle)
return NO_INIT;
err = snd_pcm_hw_params_set_channels(mHandle, mHardwareParams,
channels);
if (err < 0) {
LOGE("Unable to set channel count to %i: %s",
channels, snd_strerror(err));
return BAD_VALUE;
}
LOGD("Using %i %s for %s.",
channels, channels == 1 ? "channel" : "channels", streamName());
return NO_ERROR;
}
i want to set channel 1 when recoring audio. but the message of "Unable to
set channel count to %i: %s" will be print .who know why?
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