i2s任务问题 (AUD-6763)

[wjstan]

我在代码里创建一个i2s reader, 一个i2s writer,
i2s_stream_cfg_t i2s_w_cfg = I2S_STREAM_CFG_DEFAULT_WITH_TYLE_AND_CH(I2S_NUM_0, I2S_SAMPLE_RATE, I2S_BITS, AUDIO_STREAM_WRITER, 1);
i2s_w_cfg.task_stack = 8 * 1024;//should not be -1 while using pipeling
//i2s_w_cfg.need_expand = (16 != I2S_BITS);
i2s_w_cfg.uninstall_drv = false;
i2s_w_cfg.stack_in_ext = true;
i2s_w_cfg.task_prio = 21;
i2s_w_cfg.task_core = 1;
i2s_w_cfg.chan_cfg.dma_desc_num = 16;
i2s_w_cfg.chan_cfg.dma_frame_num = 512;
i2s_w_cfg.out_rb_size = 16 * 1024;
i2s_w_cfg.chan_cfg.auto_clear_before_cb = true;
i2s_stream_writter = i2s_stream_init(&i2s_w_cfg);

ESP_LOGI(TAG, "-- Create i2s_stream_write task_prio=21, external stack");

//i2s_stream_cfg_t i2s_r_cfg = I2S_STREAM_CFG_DEFAULT();
i2s_stream_cfg_t i2s_r_cfg = I2S_STREAM_CFG_DEFAULT_WITH_TYLE_AND_CH(I2S_NUM_0, I2S_SAMPLE_RATE, I2S_BITS, AUDIO_STREAM_READER, 1);
//i2s_r_cfg.type = AUDIO_STREAM_READER;
//int channel_format = I2S_CHANNEL_TYPE_ONLY_LEFT;
//i2s_stream_set_channel_type(&i2s_r_cfg, channel_format);
//i2s_r_cfg.std_cfg.clk_cfg.sample_rate_hz = SAMPLE_RATE;
i2s_r_cfg.chan_cfg.dma_desc_num = 16;
i2s_r_cfg.chan_cfg.dma_frame_num = 512;

i2s_r_cfg.chan_cfg.auto_clear_before_cb = true;
i2s_r_cfg.task_stack = 8 * 1024;
i2s_r_cfg.task_prio = 22;
i2s_r_cfg.task_core = 0;
i2s_r_cfg.out_rb_size = 16 * 1024;
i2s_r_cfg.uninstall_drv = false;
i2s_r_cfg.stack_in_ext = false;

i2s_stream_reader = i2s_stream_init(&i2s_r_cfg);

ESP_LOGI(TAG, "-- Create i2s_stream_reader task_prio=22, internal stack");

但是用audio_sys_get_real_time_stats()查看任务始终只有一个i2s，而不是2个，看起来是以i2s writer的配置创建出来的，

I (39665) AUDIO_SYS: | Task | Run Time | Per | Prio | HWM | State | CoreId | Stack
I (39665) AUDIO_SYS: | main | 2593 | 0% | 1 | 2272 | Running | 0 | Intr
I (39673) AUDIO_SYS: | IDLE1 | 962868 |48% | 0 | 688 | Ready | 1 | Intr
I (39683) AUDIO_SYS: | IDLE0 | 988706 |49% | 0 | 696 | Ready | 0 | Intr

I (39702) AUDIO_SYS: | tiT | 1853 | 0% | 18 | 1836 | Blocked | 7fffffff | Intr

I (39711) AUDIO_SYS: | i2s | 417 | 0% | 21 | 6068 | Blocked | 1 | Extr

I (39721) AUDIO_SYS: | _send_rtc_data | 15 | 0% | 21 | 2108 | Blocked | 0 | Extr
I (39730) AUDIO_SYS: | esp_periph | 1808 | 0% | 5 | 1612 | Blocked | 0 | Intr
I (39740) AUDIO_SYS: | sys_evt | 0 | 0% | 20 | 1204 | Blocked | 0 | Intr
I (39749) AUDIO_SYS: | opus | 0 | 0% | 23 | 28232 | Blocked | 1 | Extr
I (39759) AUDIO_SYS: | resample | 0 | 0% | 5 | 1804 | Blocked | 0 | Extr
I (39768) AUDIO_SYS: | audio_recv_proc | 0 | 0% | 10 | 4324 | Blocked | 0 | Extr

I (39787) AUDIO_SYS: | ipc1 | 0 | 0% | 24 | 528 | Suspended | 1 | Intr
I (39797) AUDIO_SYS: | esp_timer | 604 | 0% | 22 | 3032 | Suspended | 0 | Intr
I (39806) AUDIO_SYS: | wifi | 7514 | 0% | 23 | 3460 | Blocked | 0 | Intr
I (39816) AUDIO_SYS: | ipc0 | 0 | 0% | 1 | 440 | Suspended | 0 | Intr
I (39825) AUDIO_SYS: | Tmr Svc | 0 | 0% | 1 | 968 | Blocked | 7fffffff | Intr

请问这是为什么