73 lines
2.6 KiB
C
73 lines
2.6 KiB
C
/*
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* Copyright (C) 2017 Amlogic Corporation.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef _ALSA_MANAGER_H_
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#define _ALSA_MANAGER_H_
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#include <hardware/audio.h>
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typedef enum info_type {
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OUTPUT_INFO_STATUS, // running or xrun etc..
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OUTPUT_INFO_DELAYFRAME, // the delay frames
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} alsa_info_type_t;
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typedef union output_info {
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int delay_ms;
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} alsa_output_info_t;
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typedef struct aml_alsa_config {
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int format;
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unsigned int channel_mask;
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int sample_rate;
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//for capture only
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int period_size;
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int period_count;
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} aml_alsa_config_t;
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typedef struct aml_device_config {
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uint32_t device_port;
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} aml_device_config_t;
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void aml_alsa_info_dump(void* handle, int fd);
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int aml_alsa_input_open(void **handle, aml_alsa_config_t * stream_config, aml_device_config_t *device_config);
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int aml_alsa_input_read(void *handle, void *buffer, int bytes);
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int aml_alsa_input_flush(void *handle);
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int aml_alsa_input_get_delay(void *handle);
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uint64_t aml_alsa_input_get_timestamp(void *handle);
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int aml_alsa_input_stop(void *handle);
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int aml_alsa_input_close(void *handle);
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int aml_alsa_output_open(void **handle, aml_alsa_config_t * stream_config, aml_device_config_t *device_config);
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int aml_alsa_output_close(void *handle);
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int aml_alsa_output_write(void *handle, const void *buffer, int bytes);
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int aml_alsa_output_getinfo(void *handle, alsa_info_type_t type, alsa_output_info_t * info);
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int aml_alsa_output_pause(void *handle);
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int aml_alsa_output_resume(void *handle);
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int aml_alsa_output_stop(void *handle);
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bool aml_alsa_output_get_alsa_status(void *handle, bool *alsa_status);
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int aml_alsa_output_clear_alsa_status_changed_flag(void *handle);
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uint64_t aml_alsa_output_get_delay_frame(void *handle, bool ignore_default);
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int aml_alsa_output_flush(void *handle);
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int aml_alsa_output_get_timestamp(void *handle, unsigned int *avail, struct timespec *tstamp);
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bool aml_alsa_output_get_start_threshold(void *handle, uint32_t *start_threshold);
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enum pcm_format convert_audio_format_2_alsa_format(audio_format_t format);
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void *get_internal_pcm(void *handle);
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void aml_alsa_set_llp(bool mode);
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#endif // _ALSA_MANAGER_H_
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