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80 lines
2.8 KiB
80 lines
2.8 KiB
/*
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* Copyright (C) 2019 The Android Open Source Project
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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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#define LOG_TAG "audio_utils_fifo_wrapper"
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// #define LOG_NDEBUG 0
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#include <stdint.h>
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#include <errno.h>
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#include <log/log.h>
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#include <audio_utils/fifo.h>
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#include "fifo_wrapper.h"
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struct audio_fifo_itfe {
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audio_utils_fifo *p_fifo;
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audio_utils_fifo_reader *p_fifo_reader;
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audio_utils_fifo_writer *p_fifo_writer;
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int8_t *p_buffer;
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};
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void *fifo_init(uint32_t bytes, bool reader_throttles_writer) {
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struct audio_fifo_itfe *interface = new struct audio_fifo_itfe;
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interface->p_buffer = new int8_t[bytes];
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if (interface->p_buffer == NULL) {
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ALOGE("Failed to allocate fifo buffer!");
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return NULL;
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}
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interface->p_fifo = new audio_utils_fifo(bytes, 1, interface->p_buffer, reader_throttles_writer);
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interface->p_fifo_writer = new audio_utils_fifo_writer(*interface->p_fifo);
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interface->p_fifo_reader = new audio_utils_fifo_reader(*interface->p_fifo);
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return (void *)interface;
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}
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void fifo_release(void *fifo_itfe) {
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struct audio_fifo_itfe *interface = static_cast<struct audio_fifo_itfe *>(fifo_itfe);
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delete interface->p_fifo_writer;
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delete interface->p_fifo_reader;
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delete interface->p_fifo;
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delete[] interface->p_buffer;
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delete interface;
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}
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ssize_t fifo_read(void *fifo_itfe, void *buffer, size_t bytes) {
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struct audio_fifo_itfe *interface = static_cast<struct audio_fifo_itfe *>(fifo_itfe);
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return interface->p_fifo_reader->read(buffer, bytes);
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}
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ssize_t fifo_write(void *fifo_itfe, void *buffer, size_t bytes) {
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struct audio_fifo_itfe *interface = static_cast<struct audio_fifo_itfe *>(fifo_itfe);
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return interface->p_fifo_writer->write(buffer, bytes);
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}
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ssize_t fifo_available_to_read(void *fifo_itfe) {
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struct audio_fifo_itfe *interface = static_cast<struct audio_fifo_itfe *>(fifo_itfe);
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return interface->p_fifo_reader->available();
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}
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ssize_t fifo_available_to_write(void *fifo_itfe) {
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struct audio_fifo_itfe *interface = static_cast<struct audio_fifo_itfe *>(fifo_itfe);
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return interface->p_fifo_writer->available();
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}
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ssize_t fifo_flush(void *fifo_itfe) {
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struct audio_fifo_itfe *interface = static_cast<struct audio_fifo_itfe *>(fifo_itfe);
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return interface->p_fifo_reader->flush();
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}
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