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/* Copyright 2015 The Chromium OS Authors. All rights reserved.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include <stdbool.h>
#include "cras_types.h"
#include "utlist.h"
struct cras_rclient;
struct cras_rstream;
struct cras_rstream_config;
struct cras_audio_format;
struct stream_list;
typedef int(stream_callback)(struct cras_rstream *rstream);
/* This function will mutably borrow stream_config. */
typedef int(stream_create_func)(struct cras_rstream_config *stream_config,
struct cras_rstream **rstream);
typedef void(stream_destroy_func)(struct cras_rstream *rstream);
struct stream_list *stream_list_create(stream_callback *add_cb,
stream_callback *rm_cb,
stream_create_func *create_cb,
stream_destroy_func *destroy_cb,
struct cras_tm *timer_manager);
void stream_list_destroy(struct stream_list *list);
struct cras_rstream *stream_list_get(struct stream_list *list);
/* Creates a cras_rstream from cras_rstream_config and inserts the cras_rstream
* to stream_list in descending order by channel count.
*
* Args:
* list - stream_list to add streams.
* stream_config - A mutable borrow of cras_rstream_config.
* stream - A pointer to place created cras_rstream.
*
* Returns:
* 0 on success. Negative error code on failure.
*/
int stream_list_add(struct stream_list *list,
struct cras_rstream_config *stream_config,
struct cras_rstream **stream);
int stream_list_rm(struct stream_list *list, cras_stream_id_t id);
int stream_list_rm_all_client_streams(struct stream_list *list,
struct cras_rclient *rclient);
/*
* Checks if there is a stream pinned to the given device.
*/
bool stream_list_has_pinned_stream(struct stream_list *list,
unsigned int dev_idx);
/*
* Detects whether there is a RTC stream pair based on these rules:
* 1. The cb_threshold is 480.
* 2. The direction of two streams are opposite.
* 3. Two streams are from the same client. (Chrome or LaCrOS)
* 4. The start time of two streams are close enough. (shorter than 1s)
* If all rules are passed, set the stream type to the voice communication.
*/
void detect_rtc_stream_pair(struct stream_list *list,
struct cras_rstream *stream);
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