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70 lines
2.8 KiB
C
70 lines
2.8 KiB
C
#ifndef fooa2dpcodechfoo
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#define fooa2dpcodechfoo
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/***
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This file is part of PulseAudio.
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Copyright 2018-2019 Pali Rohár <pali.rohar@gmail.com>
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PulseAudio is free software; you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as
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published by the Free Software Foundation; either version 2.1 of the
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License, or (at your option) any later version.
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PulseAudio is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with PulseAudio; if not, see <http://www.gnu.org/licenses/>.
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***/
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#include <pulsecore/core.h>
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#include "bt-codec-api.h"
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#define MAX_A2DP_CAPS_SIZE 254
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#define DEFAULT_OUTPUT_RATE_REFRESH_INTERVAL_MS 500
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typedef struct pa_a2dp_codec_capabilities {
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uint8_t size;
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uint8_t buffer[]; /* max size is 254 bytes */
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} pa_a2dp_codec_capabilities;
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typedef struct pa_a2dp_codec_id {
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uint8_t codec_id;
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uint32_t vendor_id;
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uint16_t vendor_codec_id;
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} pa_a2dp_codec_id;
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typedef struct pa_a2dp_endpoint_conf {
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/* A2DP codec id */
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pa_a2dp_codec_id id;
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/* Returns true if the codec can be supported on the system */
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bool (*can_be_supported)(bool for_encoding);
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/* Returns true if the codec can be supported on the system */
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bool (*can_be_supported)(bool for_encoding);
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/* Returns true if codec accepts capabilities, for_encoding is true when
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* capabilities are used for encoding */
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bool (*can_accept_capabilities)(const uint8_t *capabilities_buffer, uint8_t capabilities_size, bool for_encoding);
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/* Choose remote endpoint based on capabilities from hash map
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* (const char *endpoint -> const pa_a2dp_codec_capabilities *capability)
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* and returns corresponding endpoint key (or NULL when there is no valid),
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* for_encoder is true when capabilities hash map is used for encoding */
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const char *(*choose_remote_endpoint)(const pa_hashmap *capabilities_hashmap, const pa_sample_spec *default_sample_spec, bool for_encoding);
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/* Fill codec capabilities, returns size of filled buffer */
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uint8_t (*fill_capabilities)(uint8_t capabilities_buffer[MAX_A2DP_CAPS_SIZE]);
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/* Validate codec configuration, returns true on success */
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bool (*is_configuration_valid)(const uint8_t *config_buffer, uint8_t config_size);
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/* Fill preferred codec configuration, returns size of filled buffer or 0 on failure */
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uint8_t (*fill_preferred_configuration)(const pa_sample_spec *default_sample_spec, const uint8_t *capabilities_buffer, uint8_t capabilities_size, uint8_t config_buffer[MAX_A2DP_CAPS_SIZE]);
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/* Bluetooth codec */
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pa_bt_codec bt_codec;
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} pa_a2dp_endpoint_conf;
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#endif
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