153 lines
4.2 KiB
C++
153 lines
4.2 KiB
C++
/***************************************************************************
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*
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* Copyright 2015-2019 BES.
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* All rights reserved. All unpublished rights reserved.
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*
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* No part of this work may be used or reproduced in any form or by any
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* means, or stored in a database or retrieval system, without prior written
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* permission of BES.
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*
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* Use of this work is governed by a license granted by BES.
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* This work contains confidential and proprietary information of
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* BES. which is protected by copyright, trade secret,
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* trademark and other intellectual property rights.
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*
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****************************************************************************/
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// Standard C Included Files
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#include <string.h>
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#include <math.h>
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#include <stdbool.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include "cmsis_os.h"
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#include "cqueue.h"
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#include "hal_uart.h"
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#include "hal_timer.h"
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#include "hal_trace.h"
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// BT
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#if 0
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/* mutex */
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osMutexId g_voicemsbc_queue_mutex_id;
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osMutexDef(g_voicemsbc_queue_mutex);
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/* msbc queue */
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#define VOICEMSBC_TEMP_BUFFER_SIZE 128
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#define VOICEMSBC_QUEUE_SIZE (VOICEMSBC_TEMP_BUFFER_SIZE*100)
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unsigned char voicemsbc_queue_buf[VOICEMSBC_QUEUE_SIZE];
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CQueue voicemsbc_queue;
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static uint32_t ok_to_decode = 0;
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#define LOCK_VOICEMSBC_QUEUE() \
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osMutexWait(g_voicemsbc_queue_mutex_id, osWaitForever)
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#define UNLOCK_VOICEMSBC_QUEUE() \
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osMutexRelease(g_voicemsbc_queue_mutex_id)
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static void dump_buffer_to_psram(char *buf, unsigned int len)
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{
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static unsigned int offset = 0;
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memcpy((void *)(0x1c000000 + offset), buf, len);
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}
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static void copy_one_trace_to_two_track_16bits(uint16_t *src_buf, uint16_t *dst_buf, uint32_t src_len)
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{
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uint32_t i = 0;
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for (i = 0; i < src_len; ++i) {
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dst_buf[i*2 + 0] = dst_buf[i*2 + 1] = src_buf[i];
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}
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}
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int store_voicemsbc_buffer(unsigned char *buf, unsigned int len)
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{
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LOCK_VOICEMSBC_QUEUE();
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EnCQueue(&voicemsbc_queue, buf, len);
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dump_buffer_to_psram((char *)buf, len);
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TRACE(1,"%d\n", LengthOfCQueue(&voicemsbc_queue));
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if (LengthOfCQueue(&voicemsbc_queue) > VOICEMSBC_TEMP_BUFFER_SIZE*20) {
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ok_to_decode = 1;
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}
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UNLOCK_VOICEMSBC_QUEUE();
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return 0;
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}
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static short tmp_decode_buf[VOICEMSBC_TEMP_BUFFER_SIZE*2];
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int decode_msbc_frame(unsigned char *pcm_buffer, unsigned int pcm_len)
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{
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int r = 0;
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uint32_t decode_len = 0;
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unsigned char *e1 = NULL, *e2 = NULL;
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unsigned int len1 = 0, len2 = 0;
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while (decode_len < pcm_len) {
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get_again:
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LOCK_VOICEMSBC_QUEUE();
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len1 = len2 = 0;
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r = PeekCQueue(&voicemsbc_queue, VOICEMSBC_TEMP_BUFFER_SIZE, &e1, &len1, &e2, &len2);
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UNLOCK_VOICEMSBC_QUEUE();
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if(r == CQ_ERR || len1 == 0) {
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//return 0;
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Thread::wait(4);
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goto get_again;
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}
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if (len1 != 0) {
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//msbcToPcm8k(e1, (short *)(pcm_buffer + decode_len*4), len1, 0);
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CvsdToPcm8k(e1, (short *)(tmp_decode_buf), len1, 0);
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copy_one_trace_to_two_track_16bits((uint16_t *)tmp_decode_buf, (uint16_t *)(pcm_buffer + decode_len), len1);
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LOCK_VOICEMSBC_QUEUE();
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DeCQueue(&voicemsbc_queue, 0, len1);
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UNLOCK_VOICEMSBC_QUEUE();
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decode_len += len1*4;
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}
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if (len2 != 0) {
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//msbcToPcm8k(e2, (short *)(pcm_buffer + decode_len*4), len2, 0);
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CvsdToPcm8k(e2, (short *)(tmp_decode_buf), len2, 0);
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copy_one_trace_to_two_track_16bits((uint16_t *)tmp_decode_buf, (uint16_t *)(pcm_buffer + decode_len), len2);
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LOCK_VOICEMSBC_QUEUE();
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DeCQueue(&voicemsbc_queue, 0, len2);
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UNLOCK_VOICEMSBC_QUEUE();
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decode_len += len2*4;
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}
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}
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return 0;
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}
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uint32_t voicemsbc_audio_more_data(uint8_t *buf, uint32_t len)
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{
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uint32_t l = 0;
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uint32_t cur_ticks = 0, ticks = 0;
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if (ok_to_decode == 0)
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return 0;
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ticks = hal_sys_timer_get();
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l = decode_msbc_frame(buf, len);
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cur_ticks = hal_sys_timer_get();
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TRACE(1,"msbc %d t\n", (cur_ticks-ticks));
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return l;
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}
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int voicemsbc_audio_init(void)
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{
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Pcm8k_CvsdInit();
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g_voicemsbc_queue_mutex_id = osMutexCreate((osMutex(g_voicemsbc_queue_mutex)));
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/* msbc queue*/
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InitCQueue(&voicemsbc_queue, VOICEMSBC_QUEUE_SIZE, (unsigned char *)&voicemsbc_queue_buf);
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return 0;
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}
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#endif
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