315 lines
9.8 KiB
C
Executable File
315 lines
9.8 KiB
C
Executable File
/*
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* echo_audio_linein_test.c -- Audio line in test application
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*
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* Copyright (c) 2018 Rockchip Electronics Co. Ltd.
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* Author: chad.ma <chad.ma@rock-chips.com>
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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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#include <stdio.h>
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#include <malloc.h>
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#include <unistd.h>
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#include <stdlib.h>
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#include <string.h>
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#include <getopt.h>
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#include <fcntl.h>
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#include <ctype.h>
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#include <errno.h>
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#include <limits.h>
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#include <time.h>
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#include <locale.h>
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#include <sys/unistd.h>
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#include <sys/stat.h>
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#include <sys/types.h>
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#include <alsa/asoundlib.h>
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#include <assert.h>
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#include <stdbool.h>
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#include <signal.h>
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#include "audio_test.h"
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#define LOG_TAG "audio_linein_test"
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#include "common.h"
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#if 0
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snd_pcm_t *open_sound_dev(snd_pcm_stream_t type)
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{
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int err;
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snd_pcm_t *handle;
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snd_pcm_hw_params_t *hw_params;
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unsigned int buffer_time;
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unsigned int period_time;
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unsigned int rate = 44100;
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if ((err = snd_pcm_open (&handle, "hw:0,0", type, 0)) < 0) //打开设备，第2个参数是指使用默认的 设备名称
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return NULL;
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if ((err = snd_pcm_hw_params_malloc (&hw_params)) < 0) { //分配参数
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fprintf (stderr, "cannot allocate hardware parameter structure (%s)\n",
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snd_strerror (err));
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return NULL;
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}
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if ((err = snd_pcm_hw_params_any (handle, hw_params)) < 0) { //初始化参数
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fprintf (stderr, "cannot initialize hardware parameter structure (%s)\n",
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snd_strerror (err));
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return NULL;
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}
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if (snd_pcm_hw_params_get_buffer_time_max(hw_params, &buffer_time, 0) < 0) {
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fprintf(stderr, "Error snd_pcm_hw_params_get_buffer_time_max\n");
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log_err("Error snd_pcm_hw_params_get_buffer_time_max(%s)\n",snd_strerror (err));
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}
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if (buffer_time > 500000) buffer_time = 500000;
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period_time = buffer_time / 4;
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log_info("buff_time = %d, period_time =%d \n",buffer_time, period_time);
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if (snd_pcm_hw_params_set_buffer_time_near(handle, hw_params, &buffer_time, 0) < 0) {
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fprintf(stderr, "Error snd_pcm_hw_params_set_buffer_time_near\n");
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log_err("Error snd_pcm_hw_params_set_buffer_time_near(%s)\n",snd_strerror (err));
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return NULL;
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}
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if (snd_pcm_hw_params_set_period_time_near(handle, hw_params, &period_time, 0) < 0) {
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fprintf(stderr, "Error snd_pcm_hw_params_set_buffer_time_near\n");
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log_err("Error snd_pcm_hw_params_set_buffer_time_near(%s)\n",snd_strerror (err));
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return NULL;
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}
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if ((err = snd_pcm_hw_params_set_access (handle, hw_params, SND_PCM_ACCESS_RW_INTERLEAVED)) < 0) { //设置参数，数据存放方式是交叉存放SND_PCM_ACCESS_RW_INTERLEAVED（先放左声道再放右声道）
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fprintf (stderr, "cannot set access type (%s)\n",
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snd_strerror (err));
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log_err("cannot set access type (%s)\n", snd_strerror (err));
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return NULL;
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}
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if ((err = snd_pcm_hw_params_set_format (handle, hw_params, SND_PCM_FORMAT_S16_LE)) < 0) {
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fprintf (stderr, "cannot set sample format (%s)\n", //设置格式SND_PCM_FORMAT_S16_LE是16位的
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snd_strerror (err));
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log_err("cannot set sample format (%s)\n", snd_strerror (err));
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return NULL;
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}
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if ((err = snd_pcm_hw_params_set_rate_near (handle, hw_params, &rate, 0)) < 0) { //设置采样率
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fprintf (stderr, "cannot set sample rate (%s)\n",
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snd_strerror (err));
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log_err("cannot set sample rate (%s)\n", snd_strerror (err));
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return NULL;
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}
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if ((err = snd_pcm_hw_params_set_channels (handle, hw_params, 2)) < 0) { //设置通道数
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fprintf (stderr, "cannot set channel count (%s)\n",
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snd_strerror (err));
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log_err("cannot set channel count (%s)\n",snd_strerror (err));
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return NULL;
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}
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if ((err = snd_pcm_hw_params (handle, hw_params)) < 0) { //把构造的结构体的数据写到硬件上去
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fprintf (stderr, "cannot set parameters (%s)\n",
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snd_strerror (err));
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log_err("cannot set parameters (%s)\n",snd_strerror (err));
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return NULL;
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}
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snd_pcm_hw_params_free (hw_params); //释放含参数的结构体
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return handle; //成功时返回句柄
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}
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void close_sound_dev(snd_pcm_t *handle) //关闭声音设备
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{
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snd_pcm_close (handle);
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}
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snd_pcm_t *open_playback(void) //打开播放设备
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{
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return open_sound_dev(SND_PCM_STREAM_PLAYBACK);
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}
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snd_pcm_t *open_capture(void) //打开录音设备
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{
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return open_sound_dev(SND_PCM_STREAM_CAPTURE);
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}
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int main (int argc, char *argv[])
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{
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int err;
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char buf[512];
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snd_pcm_t *playback_handle;
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snd_pcm_t *capture_handle;
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playback_handle = open_playback();// 打开播放设备
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if (!playback_handle) {
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fprintf (stderr, "cannot open for playback\n");
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log_err("cannot open for playback\n");
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return -1;
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}
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capture_handle = open_capture();//打开录音设备
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if (!capture_handle) {
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fprintf (stderr, "cannot open for capture\n");
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log_err("cannot open for capture\n");
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return -1;
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}
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if ((err = snd_pcm_prepare (playback_handle)) < 0) { //准备播放操作
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fprintf (stderr, "cannot prepare audio interface for use (%s)\n",
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snd_strerror (err));
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log_err("cannot prepare audio interface for use (%s)\n",snd_strerror (err));
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return -1;
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}
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if ((err = snd_pcm_prepare (capture_handle)) < 0) { //准备录音操作
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fprintf (stderr, "cannot prepare audio interface for use (%s)\n",
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snd_strerror (err));
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log_err("cannot prepare audio interface for use (%s)\n",snd_strerror (err));
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return -1;
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}
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while (1) {
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if ((err = snd_pcm_readi (capture_handle, buf, 128)) != 128) { //读操作（把数据读到buffer）
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fprintf (stderr, "read from audio interface failed (%s)\n",
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snd_strerror (err));
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log_err("read from audio interface failed (%s)\n",snd_strerror (err));
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return -1;
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}
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if ((err = snd_pcm_writei (playback_handle, buf, 128)) != 128) { //写操作(把数据写到buffer)
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fprintf (stderr, "write to audio interface failed (%s)\n",
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snd_strerror (err));
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log_err("write to audio interface failed (%s)\n",snd_strerror (err));
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return -1;
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}
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}
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snd_pcm_close (playback_handle);//关闭播放设备
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snd_pcm_close (capture_handle);//关闭录音设备
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return 0;
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}
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#endif
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#define LINEIN_TIME 20
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static bool gIslinein = false;
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int switch_to_linein(bool sw_to_linein)
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{
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int ret = 0;
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int status = 0;
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if (sw_to_linein) {
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log_info("-----------> swtich to line in <-----------\n");
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status = system("/tmp/switch_inoutput.sh li");
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} else {
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log_info("-----------> swtich to mic in <-----------\n");
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status = system("/tmp/switch_inoutput.sh mi");
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}
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if (status == -1) {
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log_info("system cmd run error...\n");
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ret = -1;
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}
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return ret;
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}
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//*Audio line in test
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void *audio_line_in_test(void *argv)
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{
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char cmd[128];
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fprintf(stderr,"=========function :%s start=============\n",__func__);
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gIslinein = true;
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switch_to_linein(gIslinein);
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//指定Card 0，device 0，录音10秒
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fprintf(stderr,"recording\n ");
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sprintf(cmd,"arecord -D hw:0,0 -f S16_LE -c 2 -r 44100 -d %d %s/%s", \
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LINEIN_TIME,TEST_RESULT_SAVE_PATH,AUDIO_LINEIN_FILE);
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system(cmd);
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fprintf(stderr,"playing\n ");
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sprintf(cmd,"aplay -f S16_LE -c 2 -r 44100 -d %d %s/%s", \
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LINEIN_TIME,TEST_RESULT_SAVE_PATH,AUDIO_LINEIN_FILE); //放音
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system(cmd);
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//remove line-in test file
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sprintf(cmd,"rm %s/%s",TEST_RESULT_SAVE_PATH,AUDIO_LINEIN_FILE);
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system(cmd);
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fprintf(stderr,"=========Audio Line in test finished=============\n");
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}
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//* 信号处理函数，在结束进程前，删除录音的pcm文件
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static int del_line_in_pcm(int sign_no)
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{
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char cmd[128];
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printf("====================function : %s start =================\n",__func__);
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sprintf(cmd,"%s/%s",TEST_RESULT_SAVE_PATH,AUDIO_LINEIN_FILE);
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if(0 == access(cmd,F_OK)){
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remove(cmd);
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}
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printf("====================function : %s finished =================\n",__func__);
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exit(0);
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}
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/*主函数入口*/
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int main(int argc, char *argv[])
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{
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int delay_t = 0,err_code = 0;
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struct timeval t1, t2;
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char buf[COMMAND_VALUESIZE] = "audio_linein_test";
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char result[COMMAND_VALUESIZE] = RESULT_PASS;
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system("amixer cset name='Master Playback Volume' 80%");
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log_info("audio record test start...\n");
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//* 注册信号处理函数
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signal(SIGTERM, (__sighandler_t)del_line_in_pcm);
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gettimeofday(&t1, NULL);
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while(1)
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{
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audio_line_in_test(argv[0]);
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gettimeofday(&t2, NULL);
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delay_t = (t2.tv_sec - t1.tv_sec) * 1000000 + (t2.tv_usec - t1.tv_usec);
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if (delay_t > MANUAL_TEST_TIMEOUT) {
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log_warn("audio record test end, timeout 60s\n");
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err_code = AUDIO_LINEIN_TIMEOUT;
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//break;
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}
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}
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if (gIslinein) {
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gIslinein = false;
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switch_to_linein(gIslinein); //acodec switch to mic-->input
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}
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if (err_code)
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strcpy(result, RESULT_FAIL);
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send_msg_to_server(buf, result, err_code);
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return 0;
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}
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