static int adev_open_output_stream(struct audio_hw_device *dev,
audio_io_handle_t handle,
audio_devices_t devices,
audio_output_flags_t flags,
struct audio_config *config,
struct audio_stream_out **stream_out)
{
struct audio_device *adev = (struct audio_device *)dev;
struct stream_out *out;
int ret;
out = (struct stream_out *)calloc(1, sizeof(struct stream_out));
if (!out)
return -ENOMEM;
out->stream.common.get_sample_rate = out_get_sample_rate;
out->stream.common.set_sample_rate = out_set_sample_rate;
out->stream.common.get_buffer_size = out_get_buffer_size;
out->stream.common.get_channels = out_get_channels;
out->stream.common.get_format = out_get_format;
out->stream.common.set_format = out_set_format;
out->stream.common.standby = out_standby;
out->stream.common.dump = out_dump;
out->stream.common.set_parameters = out_set_parameters;
out->stream.common.get_parameters = out_get_parameters;
out->stream.common.add_audio_effect = out_add_audio_effect;
out->stream.common.remove_audio_effect = out_remove_audio_effect;
out->stream.get_latency = out_get_latency;
out->stream.set_volume = out_set_volume;
out->stream.write = out_write;
out->stream.get_render_position = out_get_render_position;
out->stream.get_next_write_timestamp = out_get_next_write_timestamp;
out->dev = adev;
config->format = out_get_format(&out->stream.common);
config->channel_mask = out_get_channels(&out->stream.common);
config->sample_rate = out_get_sample_rate(&out->stream.common);
out->standby = true;
adev->card = -1;
adev->device = -1;
*stream_out = &out->stream;
return 0;
err_open:
free(out);
*stream_out = NULL;
return ret;
}
static int adev_open_output_stream(struct audio_hw_device *dev,
audio_io_handle_t handle,
audio_devices_t devices,
audio_output_flags_t flags,
struct audio_config *config,
struct audio_stream_out **stream_out)
{
struct audio_device *adev = (struct audio_device *)dev;
struct stream_out *out;
int ret;
ALOGV("%s enter card %d device %d ",__func__, adev->card, adev->device);
out = (struct stream_out *)calloc(1, sizeof(struct stream_out));
if (!out)
return -ENOMEM;
out->channel_mask = AUDIO_CHANNEL_OUT_STEREO;
if (flags & AUDIO_OUTPUT_FLAG_DIRECT) {
ALOGV("%s: USB Audio (device mode) HD",__func__);
if (config->format == 0)
config->format = pcm_config_HD_default.format;
if (config->channel_mask == 0)
config->channel_mask = AUDIO_CHANNEL_OUT_STEREO;
if (config->sample_rate == 0)
config->sample_rate = pcm_config_HD_default.rate;
out->pcm_config.period_size = pcm_config_HD_default.period_size;
out->flags |= flags;
} else {
ALOGV("%s: USB Audio (device mode) Stereo",__func__);
if (config->format == 0)
config->format = pcm_config_default.format;
if (config->channel_mask == 0)
config->channel_mask = AUDIO_CHANNEL_OUT_STEREO;
if (config->sample_rate == 0)
config->sample_rate = pcm_config_default.rate;
out->pcm_config.period_size = pcm_config_default.period_size;
}
out->channel_mask = config->channel_mask;
out->pcm_config.channels = popcount(config->channel_mask);
out->pcm_config.rate = config->sample_rate;
out->pcm_config.format = config->format;
out->pcm_config.period_count = pcm_config_default.period_count;
out->stream.common.get_sample_rate = out_get_sample_rate;
out->stream.common.set_sample_rate = out_set_sample_rate;
out->stream.common.get_buffer_size = out_get_buffer_size;
out->stream.common.get_channels = out_get_channels;
out->stream.common.get_format = out_get_format;
out->stream.common.set_format = out_set_format;
out->stream.common.standby = out_standby;
out->stream.common.dump = out_dump;
out->stream.common.set_parameters = out_set_parameters;
out->stream.common.get_parameters = out_get_parameters;
out->stream.common.add_audio_effect = out_add_audio_effect;
out->stream.common.remove_audio_effect = out_remove_audio_effect;
out->stream.get_latency = out_get_latency;
out->stream.set_volume = out_set_volume;
out->stream.write = out_write;
out->stream.get_render_position = out_get_render_position;
out->stream.get_next_write_timestamp = out_get_next_write_timestamp;
out->dev = adev;
config->format = out_get_format(&out->stream.common);
config->channel_mask = out_get_channels(&out->stream.common);
config->sample_rate = out_get_sample_rate(&out->stream.common);
out->standby = true;
adev->card = -1;
adev->device = -1;
*stream_out = &out->stream;
ALOGV("%s exit",__func__);
return 0;
}