mirror of
https://gitee.com/Vancouver2017/luban-lite-t3e-pro.git
synced 2025-12-14 18:38:55 +00:00
128 lines
2.7 KiB
C
128 lines
2.7 KiB
C
#include <rtthread.h>
|
|
#include <rtdevice.h>
|
|
#include <dfs_posix.h>
|
|
|
|
#define BUFSZ 1024
|
|
#define SOUND_DEVICE_NAME "sound0"
|
|
static rt_device_t snd_dev;
|
|
|
|
struct RIFF_HEADER_DEF
|
|
{
|
|
char riff_id[4]; // 'R','I','F','F'
|
|
uint32_t riff_size;
|
|
char riff_format[4]; // 'W','A','V','E'
|
|
};
|
|
|
|
struct WAVE_FORMAT_DEF
|
|
{
|
|
uint16_t FormatTag;
|
|
uint16_t Channels;
|
|
uint32_t SamplesPerSec;
|
|
uint32_t AvgBytesPerSec;
|
|
uint16_t BlockAlign;
|
|
uint16_t BitsPerSample;
|
|
};
|
|
|
|
struct FMT_BLOCK_DEF
|
|
{
|
|
char fmt_id[4]; // 'f','m','t',' '
|
|
uint32_t fmt_size;
|
|
struct WAVE_FORMAT_DEF wav_format;
|
|
};
|
|
|
|
struct DATA_BLOCK_DEF
|
|
{
|
|
char data_id[4]; // 'R','I','F','F'
|
|
uint32_t data_size;
|
|
};
|
|
|
|
struct wav_info
|
|
{
|
|
struct RIFF_HEADER_DEF header;
|
|
struct FMT_BLOCK_DEF fmt_block;
|
|
struct DATA_BLOCK_DEF data_block;
|
|
};
|
|
|
|
int test_wavplay(int argc, char **argv)
|
|
{
|
|
int fd = -1;
|
|
uint8_t *buffer = NULL;
|
|
struct wav_info *info = NULL;
|
|
struct rt_audio_caps caps = {0};
|
|
|
|
if (argc != 2)
|
|
{
|
|
rt_kprintf("Usage:\n");
|
|
rt_kprintf("test_wavplay song.wav\n");
|
|
return 0;
|
|
}
|
|
|
|
fd = open(argv[1], O_RDONLY);
|
|
if (fd < 0)
|
|
{
|
|
rt_kprintf("open file failed!\n");
|
|
goto __exit;
|
|
}
|
|
|
|
buffer = rt_malloc(BUFSZ);
|
|
if (buffer == RT_NULL)
|
|
goto __exit;
|
|
|
|
rt_memset(buffer, 0, BUFSZ);
|
|
|
|
info = (struct wav_info *) rt_malloc(sizeof * info);
|
|
if (info == RT_NULL)
|
|
goto __exit;
|
|
|
|
if (read(fd, &(info->header), sizeof(struct RIFF_HEADER_DEF)) <= 0)
|
|
goto __exit;
|
|
if (read(fd, &(info->fmt_block), sizeof(struct FMT_BLOCK_DEF)) <= 0)
|
|
goto __exit;
|
|
if (read(fd, &(info->data_block), sizeof(struct DATA_BLOCK_DEF)) <= 0)
|
|
goto __exit;
|
|
|
|
rt_kprintf("wav information:\n");
|
|
rt_kprintf("samplerate %d\n", info->fmt_block.wav_format.SamplesPerSec);
|
|
rt_kprintf("channel %d\n", info->fmt_block.wav_format.Channels);
|
|
|
|
snd_dev = rt_device_find(SOUND_DEVICE_NAME);
|
|
|
|
rt_device_open(snd_dev, RT_DEVICE_OFLAG_WRONLY);
|
|
|
|
caps.main_type = AUDIO_TYPE_OUTPUT;
|
|
caps.sub_type = AUDIO_DSP_PARAM;
|
|
caps.udata.config.samplerate = info->fmt_block.wav_format.SamplesPerSec;
|
|
caps.udata.config.channels = info->fmt_block.wav_format.Channels;
|
|
caps.udata.config.samplebits = 16;
|
|
rt_device_control(snd_dev, AUDIO_CTL_CONFIGURE, &caps);
|
|
|
|
while (1)
|
|
{
|
|
int length;
|
|
|
|
length = read(fd, buffer, BUFSZ);
|
|
|
|
if (length <= 0)
|
|
break;
|
|
|
|
rt_device_write(snd_dev, 0, buffer, length);
|
|
}
|
|
|
|
rt_device_close(snd_dev);
|
|
|
|
__exit:
|
|
|
|
if (fd >= 0)
|
|
close(fd);
|
|
|
|
if (buffer)
|
|
rt_free(buffer);
|
|
|
|
if (info)
|
|
rt_free(info);
|
|
|
|
return 0;
|
|
}
|
|
|
|
MSH_CMD_EXPORT(test_wavplay, play wav file);
|