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pipeline_aws_polly_mp3

README.md

Text-to-Speech Service by Amazon Polly

Example Brief

This example demonstrates how to use ADF to play the MP3 audio generated by Amazon Polly, Amazon’s online text-to-speech service. It uses English text by default, but also supports other languages. For more technical information, please go to Amazon Polly.

Below is the pipeline that obtains the MP3 audio generated by Amazon Polly.

[amazon_polly_server] ---> http_stream ---> mp3_decoder ---> i2s_stream ---> [codec_chip]

Environment Setup

Hardware Required

This example runs on the boards that are marked with a green checkbox in the table. Please remember to select the board in menuconfig as discussed in Section Configuration below.

Build and Flash

Default IDF Branch

This example supports IDF release/v5.0 and later branches. By default, it runs on ADF's built-in branch $ADF_PATH/esp-idf.

Configuration

The default board for this example is ESP32-Lyrat V4.3. If you need to run this example on other development boards, select the board in menuconfig, such as ESP32-Lyrat-Mini V1.1.

menuconfig > Audio HAL > ESP32-Lyrat-Mini V1.1

Connect to a Wi-Fi network by running menuconfig and then filling in the network information.

 menuconfig > Example Configuration > `WiFi SSID` and `WiFi Password`

In addition, you need to apply for a text-to-speech application at Amazon Polly, and fill in your Amazon service access key ID and Amazon service access secret respectively in menuconfig so as to authenticate with the Amazon Polly server.

menuconfig > Example Configuration > `Amazon service access key ID` and `Amazon service access secret`

Build and Flash

Build the project and flash it to the board, then run monitor tool to view serial output (replace PORT with your board's serial port name):

idf.py -p PORT flash monitor

To exit the serial monitor, type Ctrl-].

See ESP-IDF Programming Guide for full steps to configure and build an ESP-IDF project.

How to Use the Example

Example Functionality

After the example starts running, it first tries to connect to the preset Wi-Fi network, and then authenticates with the Amazon Polly server. If the authentication succeeds, it will ask the server to convert the following English text into speech. Finally, the server returns the speech as an MP3 audio file.

"Espressif Systems is a multinational, fabless semiconductor company, with headquarters in Shanghai, China. We specialize in producing highly-integrated, low-power, WiFi-and-Bluetooth IoT solutions. Among our most popular chips are ESP8266 and ESP32. We are committed to creating IoT solutions that are power-efficient, robust and secure."

The log is as follows:

rst:0x1 (POWERON_RESET),boot:0x1f (SPI_FAST_FLASH_BOOT)
configsip: 0, SPIWP:0xee
clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00
mode:DIO, clock div:2
load:0x3fff0030,len:7204
load:0x40078000,len:13212
load:0x40080400,len:4568
0x40080400: _init at ??:?

entry 0x400806f4
I (27) boot: ESP-IDF v4.2.2-1-g379ca2123 2nd stage bootloader
I (27) boot: compile time 15:29:48
I (27) boot: chip revision: 3
I (31) boot_comm: chip revision: 3, min. bootloader chip revision: 0
I (38) boot.esp32: SPI Speed      : 40MHz
I (43) boot.esp32: SPI Mode       : DIO
I (47) boot.esp32: SPI Flash Size : 4MB
I (52) boot: Enabling RNG early entropy source...
I (57) boot: Partition Table:
I (61) boot: ## Label            Usage          Type ST Offset   Length
I (68) boot:  0 nvs              WiFi data        01 02 00009000 00004000
I (76) boot:  1 phy_init         RF data          01 01 0000d000 00001000
I (83) boot:  2 factory          factory app      00 00 00010000 00300000
I (91) boot: End of partition table
I (95) boot_comm: chip revision: 3, min. application chip revision: 0
I (102) esp_image: segment 0: paddr=0x00010020 vaddr=0x3f400020 size=0x26d0c (158988) map
I (172) esp_image: segment 1: paddr=0x00036d34 vaddr=0x3ffb0000 size=0x033a8 ( 13224) load
I (177) esp_image: segment 2: paddr=0x0003a0e4 vaddr=0x40080000 size=0x05f34 ( 24372) load
0x40080000: _WindowOverflow4 at /workshop/esp-idfs/esp-idf-v4.2.2-psram/components/freertos/xtensa/xtensa_vectors.S:1730

I (189) esp_image: segment 3: paddr=0x00040020 vaddr=0x400d0020 size=0xa7b9c (687004) map
0x400d0020: _stext at ??:?

I (451) esp_image: segment 4: paddr=0x000e7bc4 vaddr=0x40085f34 size=0x115a8 ( 71080) load
0x40085f34: btpwr_tsens_track at /home/cff/gittree/chip7.1_phy/chip_7.1/board_code/app_test/pp/phy/phy_chip_v7_ana.c:1487

I (495) boot: Loaded app from partition at offset 0x10000
I (495) boot: Disabling RNG early entropy source...
I (495) cpu_start: Pro cpu up.
I (499) cpu_start: Application information:
I (504) cpu_start: Project name:     play_aws_polly_mp3
I (510) cpu_start: App version:      v2.2-234-g771e2c30
I (516) cpu_start: Compile time:     Nov 15 2021 15:29:38
I (522) cpu_start: ELF file SHA256:  f49b6d83ddd2c894...
I (528) cpu_start: ESP-IDF:          v4.2.2-1-g379ca2123
I (534) cpu_start: Starting app cpu, entry point is 0x400819d4
0x400819d4: call_start_cpu1 at /workshop/esp-idfs/esp-idf-v4.2.2-psram/components/esp32/cpu_start.c:287

I (0) cpu_start: App cpu up.
I (544) heap_init: Initializing. RAM available for dynamic allocation:
I (551) heap_init: At 3FFAE6E0 len 00001920 (6 KiB): DRAM
I (557) heap_init: At 3FFB83A0 len 00027C60 (159 KiB): DRAM
I (563) heap_init: At 3FFE0440 len 00003AE0 (14 KiB): D/IRAM
I (570) heap_init: At 3FFE4350 len 0001BCB0 (111 KiB): D/IRAM
I (576) heap_init: At 400974DC len 00008B24 (34 KiB): IRAM
I (582) cpu_start: Pro cpu start user code
I (601) spi_flash: detected chip: gd
I (601) spi_flash: flash io: dio
W (601) spi_flash: Detected size(8192k) larger than the size in the binary image header(4096k). Using the size in the binary image header.
I (611) cpu_start: Starting scheduler on PRO CPU.
I (0) cpu_start: Starting scheduler on APP CPU.
I (658) AWS_POLLY_EXAMPLE: [ 0 ] Start and wait for Wi-Fi network
I (668) wifi:wifi driver task: 3ffc2390, prio:23, stack:6656, core=0
I (668) system_api: Base MAC address is not set
I (668) system_api: read default base MAC address from EFUSE
I (678) wifi:wifi firmware version: bb6888c
I (678) wifi:wifi certification version: v7.0
I (678) wifi:config NVS flash: enabled
I (688) wifi:config nano formating: disabled
I (688) wifi:Init data frame dynamic rx buffer num: 32
I (688) wifi:Init management frame dynamic rx buffer num: 32
I (698) wifi:Init management short buffer num: 32
I (698) wifi:Init dynamic tx buffer num: 32
I (708) wifi:Init static rx buffer size: 1600
I (708) wifi:Init static rx buffer num: 10
I (718) wifi:Init dynamic rx buffer num: 32
I (718) wifi_init: rx ba win: 6
I (718) wifi_init: tcpip mbox: 32
I (728) wifi_init: udp mbox: 6
I (728) wifi_init: tcp mbox: 6
I (728) wifi_init: tcp tx win: 5744
I (738) wifi_init: tcp rx win: 5744
I (738) wifi_init: tcp mss: 1440
I (748) wifi_init: WiFi IRAM OP enabled
I (748) wifi_init: WiFi RX IRAM OP enabled
I (758) phy_init: phy_version 4660,0162888,Dec 23 2020
I (878) wifi:mode : sta (94:b9:7e:65:c2:44)
I (2108) wifi:new:<11,0>, old:<1,0>, ap:<255,255>, sta:<11,0>, prof:1
I (3268) wifi:state: init -> auth (b0)
I (3278) wifi:state: auth -> assoc (0)
I (3288) wifi:state: assoc -> run (10)
I (3308) wifi:connected with esp32, aid = 2, channel 11, BW20, bssid = fc:ec:da:b7:11:c7
I (3308) wifi:security: WPA2-PSK, phy: bgn, rssi: -35
I (3308) wifi:pm start, type: 1

W (3318) PERIPH_WIFI: WiFi Event cb, Unhandle event_base:WIFI_EVENT, event_id:4
I (3398) wifi:AP's beacon interval = 102400 us, DTIM period = 3
I (5158) esp_netif_handlers: sta ip: 192.168.5.187, mask: 255.255.255.0, gw: 192.168.5.1
I (5158) PERIPH_WIFI: Got ip:192.168.5.187
I (5158) AWS_POLLY_EXAMPLE: Initializing SNTP
I (5168) AWS_POLLY_EXAMPLE: Waiting for system time to be set... (1/20)
I (7168) AWS_POLLY_EXAMPLE: Waiting for system time to be set... (2/20)
I (9168) AWS_POLLY_EXAMPLE: [ 1 ] Start audio codec chip
I (9168) gpio: GPIO[19]| InputEn: 1| OutputEn: 0| OpenDrain: 0| Pullup: 1| Pulldown: 0| Intr:3
E (9168) gpio: gpio_install_isr_service(438): GPIO isr service already installed
I (9188) gpio: GPIO[21]| InputEn: 0| OutputEn: 1| OpenDrain: 0| Pullup: 0| Pulldown: 0| Intr:0
I (9188) ES8388_DRIVER: init,out:02, in:00
I (9198) AUDIO_HAL: Codec mode is 3, Ctrl:1
I (9198) AWS_POLLY_EXAMPLE: [2.0] Create audio pipeline for playback
I (9208) AWS_POLLY_EXAMPLE: [2.1] Create http stream to read data
I (9208) AWS_POLLY_EXAMPLE: [2.2] Create i2s stream to write data to codec chip
I (9218) I2S: DMA Malloc info, datalen=blocksize=1200, dma_buf_count=3
I (9228) I2S: DMA Malloc info, datalen=blocksize=1200, dma_buf_count=3
I (9258) I2S: APLL: Req RATE: 44100, real rate: 44099.988, BITS: 16, CLKM: 1, BCK_M: 8, MCLK: 11289597.000, SCLK: 1411199.625000, diva: 1, divb: 0
I (9258) LYRAT_V4_3: I2S0, MCLK output by GPIO0
I (9268) AWS_POLLY_EXAMPLE: [2.3] Create mp3 decoder to decode mp3 file
I (9268) MP3_DECODER: MP3 init
I (9278) AWS_POLLY_EXAMPLE: [2.4] Register all elements to audio pipeline
I (9288) AWS_POLLY_EXAMPLE: [2.5] Link it together http_stream-->mp3_decoder-->i2s_stream-->[codec_chip]
I (9298) AUDIO_PIPELINE: link el->rb, el:0x3ffc78fc, tag:http, rb:0x3ffca338
I (9298) AUDIO_PIPELINE: link el->rb, el:0x3ffc9fc0, tag:mp3, rb:0x3ffcf474
I (9308) AWS_POLLY_EXAMPLE: [2.6] Set up  uri (http as http_stream, mp3 as mp3 decoder, and default output is i2s)
I (9318) AWS_POLLY_EXAMPLE: [ 4 ] Set up  event listener
I (9328) AWS_POLLY_EXAMPLE: [4.1] Listening event from all elements of pipeline
I (9338) AWS_POLLY_EXAMPLE: [4.2] Listening event from peripherals
I (9338) AWS_POLLY_EXAMPLE: [ 5 ] Start audio_pipeline
I (9348) AUDIO_ELEMENT: [http-0x3ffc78fc] Element task created
I (9358) AUDIO_ELEMENT: [mp3-0x3ffc9fc0] Element task created
I (9358) AUDIO_ELEMENT: [i2s-0x3ffc9c48] Element task created
I (9368) AUDIO_PIPELINE: Func:audio_pipeline_run, Line:359, MEM Total:175224 Bytes

I (9378) AUDIO_ELEMENT: [http] AEL_MSG_CMD_RESUME,state:1
I (9388) AWS_POLLY_EXAMPLE: AWS4-HMAC-SHA256 Credential=AKIA6PUYW2ZJFLTDH3O6/20211115/us-east-1/polly/aws4_request, SignedHeaders=content-type;host;x-amz-date, Signature=5f2f0f880a1**********546a5, amz_date=20211115T073123Z, date=20211115
I (9408) AUDIO_ELEMENT: [mp3] AEL_MSG_CMD_RESUME,state:1
I (9408) MP3_DECODER: MP3 opened
I (9418) AUDIO_ELEMENT: [i2s] AEL_MSG_CMD_RESUME,state:1
I (9418) I2S_STREAM: AUDIO_STREAM_WRITER
I (9428) AUDIO_PIPELINE: Pipeline started
I (9448) AUDIO_ELEMENT: [i2s] AEL_MSG_CMD_PAUSE
I (9468) I2S: APLL: Req RATE: 22050, real rate: 22049.982, BITS: 16, CLKM: 1, BCK_M: 8, MCLK: 5644795.500, SCLK: 705599.437500, diva: 1, divb: 0
I (9478) AUDIO_ELEMENT: [i2s] AEL_MSG_CMD_RESUME,state:4
I (9478) I2S_STREAM: AUDIO_STREAM_WRITER
Total bytes read: 5120 bytes
I (12238) AWS_POLLY_EXAMPLE: [ * ] Receive music info from mp3 decoder, sample_rates=22050, bits=16, ch=1
I (12328) AUDIO_ELEMENT: [i2s] AEL_MSG_CMD_PAUSE
I (12358) I2S: APLL: Req RATE: 22050, real rate: 22049.982, BITS: 16, CLKM: 1, BCK_M: 8, MCLK: 5644795.500, SCLK: 705599.437500, diva: 1, divb: 0
I (12358) AUDIO_ELEMENT: [i2s] AEL_MSG_CMD_RESUME,state:4
Total bytes read: 145408 bytes
W (32688) HTTP_STREAM: No more data,errno:0, total_bytes:143927, rlen = 0
I (32688) AUDIO_ELEMENT: IN-[http] AEL_IO_DONE,0
I (36058) AUDIO_ELEMENT: IN-[mp3] AEL_IO_DONE,-2
I (36438) MP3_DECODER: Closed
I (36518) AUDIO_ELEMENT: IN-[i2s] AEL_IO_DONE,-2
W (36688) AWS_POLLY_EXAMPLE: [ * ] Stop event received
I (36688) AWS_POLLY_EXAMPLE: [ 6 ] Stop audio_pipeline
E (36688) AUDIO_ELEMENT: [http] Element already stopped
E (36688) AUDIO_ELEMENT: [mp3] Element already stopped
E (36698) AUDIO_ELEMENT: [i2s] Element already stopped
W (36698) AUDIO_PIPELINE: There are no listener registered
I (36708) AUDIO_PIPELINE: audio_pipeline_unlinked
W (36718) AUDIO_ELEMENT: [http] Element has not create when AUDIO_ELEMENT_TERMINATE
W (36718) AUDIO_ELEMENT: [i2s] Element has not create when AUDIO_ELEMENT_TERMINATE
W (36728) AUDIO_ELEMENT: [mp3] Element has not create when AUDIO_ELEMENT_TERMINATE
I (36748) wifi:state: run -> init (0)
I (36748) wifi:pm stop, total sleep time: 27148442 us / 33434519 us

I (36748) wifi:new:<11,0>, old:<11,0>, ap:<255,255>, sta:<11,0>, prof:1
W (36758) PERIPH_WIFI: Wi-Fi disconnected from SSID esp32, auto-reconnect disabled, reconnect after 1000 ms
W (36768) PERIPH_WIFI: WiFi Event cb, Unhandle event_base:WIFI_EVENT, event_id:3
I (36778) wifi:flush txq
I (36778) wifi:stop sw txq
I (36778) wifi:lmac stop hw txq
I (36778) wifi:Deinit lldesc rx mblock:10

Done

Example Log

A complete log is as follows:

rst:0x1 (POWERON_RESET),boot:0x1f (SPI_FAST_FLASH_BOOT)
configsip: 0, SPIWP:0xee
clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00
mode:DIO, clock div:2
load:0x3fff0030,len:7204
load:0x40078000,len:13212
load:0x40080400,len:4568
0x40080400: _init at ??:?

entry 0x400806f4
I (27) boot: ESP-IDF v4.2.2-1-g379ca2123 2nd stage bootloader
I (27) boot: compile time 15:29:48
I (27) boot: chip revision: 3
I (31) boot_comm: chip revision: 3, min. bootloader chip revision: 0
I (38) boot.esp32: SPI Speed      : 40MHz
I (43) boot.esp32: SPI Mode       : DIO
I (47) boot.esp32: SPI Flash Size : 4MB
I (52) boot: Enabling RNG early entropy source...
I (57) boot: Partition Table:
I (61) boot: ## Label            Usage          Type ST Offset   Length
I (68) boot:  0 nvs              WiFi data        01 02 00009000 00004000
I (76) boot:  1 phy_init         RF data          01 01 0000d000 00001000
I (83) boot:  2 factory          factory app      00 00 00010000 00300000
I (91) boot: End of partition table
I (95) boot_comm: chip revision: 3, min. application chip revision: 0
I (102) esp_image: segment 0: paddr=0x00010020 vaddr=0x3f400020 size=0x26d0c (158988) map
I (172) esp_image: segment 1: paddr=0x00036d34 vaddr=0x3ffb0000 size=0x033a8 ( 13224) load
I (177) esp_image: segment 2: paddr=0x0003a0e4 vaddr=0x40080000 size=0x05f34 ( 24372) load
0x40080000: _WindowOverflow4 at /workshop/esp-idfs/esp-idf-v4.2.2-psram/components/freertos/xtensa/xtensa_vectors.S:1730

I (189) esp_image: segment 3: paddr=0x00040020 vaddr=0x400d0020 size=0xa7b9c (687004) map
0x400d0020: _stext at ??:?

I (451) esp_image: segment 4: paddr=0x000e7bc4 vaddr=0x40085f34 size=0x115a8 ( 71080) load
0x40085f34: btpwr_tsens_track at /home/cff/gittree/chip7.1_phy/chip_7.1/board_code/app_test/pp/phy/phy_chip_v7_ana.c:1487

I (495) boot: Loaded app from partition at offset 0x10000
I (495) boot: Disabling RNG early entropy source...
I (495) cpu_start: Pro cpu up.
I (499) cpu_start: Application information:
I (504) cpu_start: Project name:     play_aws_polly_mp3
I (510) cpu_start: App version:      v2.2-234-g771e2c30
I (516) cpu_start: Compile time:     Nov 15 2021 15:29:38
I (522) cpu_start: ELF file SHA256:  f49b6d83ddd2c894...
I (528) cpu_start: ESP-IDF:          v4.2.2-1-g379ca2123
I (534) cpu_start: Starting app cpu, entry point is 0x400819d4
0x400819d4: call_start_cpu1 at /workshop/esp-idfs/esp-idf-v4.2.2-psram/components/esp32/cpu_start.c:287

I (0) cpu_start: App cpu up.
I (544) heap_init: Initializing. RAM available for dynamic allocation:
I (551) heap_init: At 3FFAE6E0 len 00001920 (6 KiB): DRAM
I (557) heap_init: At 3FFB83A0 len 00027C60 (159 KiB): DRAM
I (563) heap_init: At 3FFE0440 len 00003AE0 (14 KiB): D/IRAM
I (570) heap_init: At 3FFE4350 len 0001BCB0 (111 KiB): D/IRAM
I (576) heap_init: At 400974DC len 00008B24 (34 KiB): IRAM
I (582) cpu_start: Pro cpu start user code
I (601) spi_flash: detected chip: gd
I (601) spi_flash: flash io: dio
W (601) spi_flash: Detected size(8192k) larger than the size in the binary image header(4096k). Using the size in the binary image header.
I (611) cpu_start: Starting scheduler on PRO CPU.
I (0) cpu_start: Starting scheduler on APP CPU.
I (658) AWS_POLLY_EXAMPLE: [ 0 ] Start and wait for Wi-Fi network
I (668) wifi:wifi driver task: 3ffc2390, prio:23, stack:6656, core=0
I (668) system_api: Base MAC address is not set
I (668) system_api: read default base MAC address from EFUSE
I (678) wifi:wifi firmware version: bb6888c
I (678) wifi:wifi certification version: v7.0
I (678) wifi:config NVS flash: enabled
I (688) wifi:config nano formating: disabled
I (688) wifi:Init data frame dynamic rx buffer num: 32
I (688) wifi:Init management frame dynamic rx buffer num: 32
I (698) wifi:Init management short buffer num: 32
I (698) wifi:Init dynamic tx buffer num: 32
I (708) wifi:Init static rx buffer size: 1600
I (708) wifi:Init static rx buffer num: 10
I (718) wifi:Init dynamic rx buffer num: 32
I (718) wifi_init: rx ba win: 6
I (718) wifi_init: tcpip mbox: 32
I (728) wifi_init: udp mbox: 6
I (728) wifi_init: tcp mbox: 6
I (728) wifi_init: tcp tx win: 5744
I (738) wifi_init: tcp rx win: 5744
I (738) wifi_init: tcp mss: 1440
I (748) wifi_init: WiFi IRAM OP enabled
I (748) wifi_init: WiFi RX IRAM OP enabled
I (758) phy_init: phy_version 4660,0162888,Dec 23 2020
I (878) wifi:mode : sta (94:b9:7e:65:c2:44)
I (2108) wifi:new:<11,0>, old:<1,0>, ap:<255,255>, sta:<11,0>, prof:1
I (3268) wifi:state: init -> auth (b0)
I (3278) wifi:state: auth -> assoc (0)
I (3288) wifi:state: assoc -> run (10)
I (3308) wifi:connected with esp32, aid = 2, channel 11, BW20, bssid = fc:ec:da:b7:11:c7
I (3308) wifi:security: WPA2-PSK, phy: bgn, rssi: -35
I (3308) wifi:pm start, type: 1

W (3318) PERIPH_WIFI: WiFi Event cb, Unhandle event_base:WIFI_EVENT, event_id:4
I (3398) wifi:AP's beacon interval = 102400 us, DTIM period = 3
I (5158) esp_netif_handlers: sta ip: 192.168.5.187, mask: 255.255.255.0, gw: 192.168.5.1
I (5158) PERIPH_WIFI: Got ip:192.168.5.187
I (5158) AWS_POLLY_EXAMPLE: Initializing SNTP
I (5168) AWS_POLLY_EXAMPLE: Waiting for system time to be set... (1/20)
I (7168) AWS_POLLY_EXAMPLE: Waiting for system time to be set... (2/20)
I (9168) AWS_POLLY_EXAMPLE: [ 1 ] Start audio codec chip
I (9168) gpio: GPIO[19]| InputEn: 1| OutputEn: 0| OpenDrain: 0| Pullup: 1| Pulldown: 0| Intr:3
E (9168) gpio: gpio_install_isr_service(438): GPIO isr service already installed
I (9188) gpio: GPIO[21]| InputEn: 0| OutputEn: 1| OpenDrain: 0| Pullup: 0| Pulldown: 0| Intr:0
I (9188) ES8388_DRIVER: init,out:02, in:00
I (9198) AUDIO_HAL: Codec mode is 3, Ctrl:1
I (9198) AWS_POLLY_EXAMPLE: [2.0] Create audio pipeline for playback
I (9208) AWS_POLLY_EXAMPLE: [2.1] Create http stream to read data
I (9208) AWS_POLLY_EXAMPLE: [2.2] Create i2s stream to write data to codec chip
I (9218) I2S: DMA Malloc info, datalen=blocksize=1200, dma_buf_count=3
I (9228) I2S: DMA Malloc info, datalen=blocksize=1200, dma_buf_count=3
I (9258) I2S: APLL: Req RATE: 44100, real rate: 44099.988, BITS: 16, CLKM: 1, BCK_M: 8, MCLK: 11289597.000, SCLK: 1411199.625000, diva: 1, divb: 0
I (9258) LYRAT_V4_3: I2S0, MCLK output by GPIO0
I (9268) AWS_POLLY_EXAMPLE: [2.3] Create mp3 decoder to decode mp3 file
I (9268) MP3_DECODER: MP3 init
I (9278) AWS_POLLY_EXAMPLE: [2.4] Register all elements to audio pipeline
I (9288) AWS_POLLY_EXAMPLE: [2.5] Link it together http_stream-->mp3_decoder-->i2s_stream-->[codec_chip]
I (9298) AUDIO_PIPELINE: link el->rb, el:0x3ffc78fc, tag:http, rb:0x3ffca338
I (9298) AUDIO_PIPELINE: link el->rb, el:0x3ffc9fc0, tag:mp3, rb:0x3ffcf474
I (9308) AWS_POLLY_EXAMPLE: [2.6] Set up  uri (http as http_stream, mp3 as mp3 decoder, and default output is i2s)
I (9318) AWS_POLLY_EXAMPLE: [ 4 ] Set up  event listener
I (9328) AWS_POLLY_EXAMPLE: [4.1] Listening event from all elements of pipeline
I (9338) AWS_POLLY_EXAMPLE: [4.2] Listening event from peripherals
I (9338) AWS_POLLY_EXAMPLE: [ 5 ] Start audio_pipeline
I (9348) AUDIO_ELEMENT: [http-0x3ffc78fc] Element task created
I (9358) AUDIO_ELEMENT: [mp3-0x3ffc9fc0] Element task created
I (9358) AUDIO_ELEMENT: [i2s-0x3ffc9c48] Element task created
I (9368) AUDIO_PIPELINE: Func:audio_pipeline_run, Line:359, MEM Total:175224 Bytes

I (9378) AUDIO_ELEMENT: [http] AEL_MSG_CMD_RESUME,state:1
I (9388) AWS_POLLY_EXAMPLE: AWS4-HMAC-SHA256 Credential=AKIA6PUYW2ZJFLTDH3O6/20211115/us-east-1/polly/aws4_request, SignedHeaders=content-type;host;x-amz-date, Signature=5f2f0f880a1**********546a5, amz_date=20211115T073123Z, date=20211115
I (9408) AUDIO_ELEMENT: [mp3] AEL_MSG_CMD_RESUME,state:1
I (9408) MP3_DECODER: MP3 opened
I (9418) AUDIO_ELEMENT: [i2s] AEL_MSG_CMD_RESUME,state:1
I (9418) I2S_STREAM: AUDIO_STREAM_WRITER
I (9428) AUDIO_PIPELINE: Pipeline started
I (9448) AUDIO_ELEMENT: [i2s] AEL_MSG_CMD_PAUSE
I (9468) I2S: APLL: Req RATE: 22050, real rate: 22049.982, BITS: 16, CLKM: 1, BCK_M: 8, MCLK: 5644795.500, SCLK: 705599.437500, diva: 1, divb: 0
I (9478) AUDIO_ELEMENT: [i2s] AEL_MSG_CMD_RESUME,state:4
I (9478) I2S_STREAM: AUDIO_STREAM_WRITER
Total bytes read: 5120 bytes
I (12238) AWS_POLLY_EXAMPLE: [ * ] Receive music info from mp3 decoder, sample_rates=22050, bits=16, ch=1
I (12328) AUDIO_ELEMENT: [i2s] AEL_MSG_CMD_PAUSE
I (12358) I2S: APLL: Req RATE: 22050, real rate: 22049.982, BITS: 16, CLKM: 1, BCK_M: 8, MCLK: 5644795.500, SCLK: 705599.437500, diva: 1, divb: 0
I (12358) AUDIO_ELEMENT: [i2s] AEL_MSG_CMD_RESUME,state:4
Total bytes read: 145408 bytes
W (32688) HTTP_STREAM: No more data,errno:0, total_bytes:143927, rlen = 0
I (32688) AUDIO_ELEMENT: IN-[http] AEL_IO_DONE,0
I (36058) AUDIO_ELEMENT: IN-[mp3] AEL_IO_DONE,-2
I (36438) MP3_DECODER: Closed
I (36518) AUDIO_ELEMENT: IN-[i2s] AEL_IO_DONE,-2
W (36688) AWS_POLLY_EXAMPLE: [ * ] Stop event received
I (36688) AWS_POLLY_EXAMPLE: [ 6 ] Stop audio_pipeline
E (36688) AUDIO_ELEMENT: [http] Element already stopped
E (36688) AUDIO_ELEMENT: [mp3] Element already stopped
E (36698) AUDIO_ELEMENT: [i2s] Element already stopped
W (36698) AUDIO_PIPELINE: There are no listener registered
I (36708) AUDIO_PIPELINE: audio_pipeline_unlinked
W (36718) AUDIO_ELEMENT: [http] Element has not create when AUDIO_ELEMENT_TERMINATE
W (36718) AUDIO_ELEMENT: [i2s] Element has not create when AUDIO_ELEMENT_TERMINATE
W (36728) AUDIO_ELEMENT: [mp3] Element has not create when AUDIO_ELEMENT_TERMINATE
I (36748) wifi:state: run -> init (0)
I (36748) wifi:pm stop, total sleep time: 27148442 us / 33434519 us

I (36748) wifi:new:<11,0>, old:<11,0>, ap:<255,255>, sta:<11,0>, prof:1
W (36758) PERIPH_WIFI: Wi-Fi disconnected from SSID esp32, auto-reconnect disabled, reconnect after 1000 ms
W (36768) PERIPH_WIFI: WiFi Event cb, Unhandle event_base:WIFI_EVENT, event_id:3
I (36778) wifi:flush txq
I (36778) wifi:stop sw txq
I (36778) wifi:lmac stop hw txq
I (36778) wifi:Deinit lldesc rx mblock:10

Done

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  • For a feature request or bug report, create a GitHub issue

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