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feat(bt): A2DP source supports AAC codec

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This commit is contained in:
yangfeng
2026-05-21 21:15:36 +08:00
parent 9f2675935a
commit 99d6c664be
8 changed files with 1040 additions and 59 deletions
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components/bt/host/bluedroid/api/include/api/esp_a2dp_api.h
+47
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@@ -67,6 +67,50 @@ typedef uint16_t esp_a2d_psc_t; /*!< Protocol service capabilitie
#define ESP_A2D_SBC_CIE_ALLOC_MTHD_SRN _Pragma("GCC warning \"'ESP_A2D_SBC_CIE_ALLOC_MTHD_SRN' macro is deprecated, use 'ESP_A2D_SBC_CIE_ALLOC_MTHD_SNR'\"") ESP_A2D_SBC_CIE_ALLOC_MTHD_SNR
#define ESP_A2D_SBC_CIE_ALLOC_MTHD_LOUDNESS (0x1) /*!< SBC allocation method Loudness */
/* A2DP M24 (MPEG-2, 4 AAC) DRC bit mask in CIE */
#define ESP_A2D_M24_CIE_DRC_SUPPORT (0x1) /*!< M24 MPEG-D DRC supported */
#define ESP_A2D_M24_CIE_DRC_NS (0x0) /*!< M24 MPEG-D DRC not supported */
/* A2DP M24 object type bit mask in CIE */
#define ESP_A2D_M24_CIE_OBJ_TYPE_2_AAC_LC (0x40) /*!< M24 MPEG-2 AAC LC */
#define ESP_A2D_M24_CIE_OBJ_TYPE_4_AAC_LC (0x20) /*!< M24 MPEG-4 AAC LC */
#define ESP_A2D_M24_CIE_OBJ_TYPE_4_AAC_LTP (0x10) /*!< M24 MPEG-4 AAC LTP */
#define ESP_A2D_M24_CIE_OBJ_TYPE_4_AAC_SCALABLE (0x08) /*!< M24 MPEG-4 AAC Scalable */
#define ESP_A2D_M24_CIE_OBJ_TYPE_4_HE_AAC (0x04) /*!< M24 MPEG-4 HE-AAC */
#define ESP_A2D_M24_CIE_OBJ_TYPE_4_HE_AAC_V2 (0x02) /*!< M24 MPEG-4 HE-AAC v2 */
#define ESP_A2D_M24_CIE_OBJ_TYPE_4_AAC_ELD_V2 (0x01) /*!< M24 MPEG-4 AAC-ELD v2 */
/* A2DP M24 sampling frequency part 1 bit mask in CIE */
#define ESP_A2D_M24_CIE_SF1_8K (0x80) /*!< M24 sampling frequency 8 kHz */
#define ESP_A2D_M24_CIE_SF1_11K (0x40) /*!< M24 sampling frequency 11.025 kHz */
#define ESP_A2D_M24_CIE_SF1_12K (0x20) /*!< M24 sampling frequency 12 kHz */
#define ESP_A2D_M24_CIE_SF1_16K (0x10) /*!< M24 sampling frequency 16 kHz */
#define ESP_A2D_M24_CIE_SF1_22K (0x08) /*!< M24 sampling frequency 22.05 kHz */
#define ESP_A2D_M24_CIE_SF1_24K (0x04) /*!< M24 sampling frequency 24 kHz */
#define ESP_A2D_M24_CIE_SF1_32K (0x02) /*!< M24 sampling frequency 32 kHz */
#define ESP_A2D_M24_CIE_SF1_44K (0x01) /*!< M24 sampling frequency 44.1 kHz */
/* A2DP M24 sampling frequency part 2 bit mask in CIE */
#define ESP_A2D_M24_CIE_SF2_48K (0x08) /*!< M24 sampling frequency 48 kHz */
#define ESP_A2D_M24_CIE_SF2_64K (0x04) /*!< M24 sampling frequency 64 kHz */
#define ESP_A2D_M24_CIE_SF2_88K (0x02) /*!< M24 sampling frequency 88.2 kHz */
#define ESP_A2D_M24_CIE_SF2_96K (0x01) /*!< M24 sampling frequency 96 kHz */
/* A2DP M24 channels bit mask in CIE */
#define ESP_A2D_M24_CIE_CH_1 (0x08) /*!< M24 1 channel */
#define ESP_A2D_M24_CIE_CH_2 (0x04) /*!< M24 2 channels */
#define ESP_A2D_M24_CIE_CH_6 (0x02) /*!< M24 6 channels */
#define ESP_A2D_M24_CIE_CH_8 (0x01) /*!< M24 8 channels */
/* A2DP M24 VBR bit mask in CIE */
#define ESP_A2D_M24_CIE_VBR_SUPPORT (0x1) /*!< M24 VBR supported */
#define ESP_A2D_M24_CIE_VBR_NS (0x0) /*!< M24 VBR not supported */
/* A2DP M24 bit rate bit mask in CIE */
#define ESP_A2D_M24_CIE_BR1_MSK (0x7F) /*!< M24 bit rate part 1 mask */
#define ESP_A2D_M24_CIE_BR2_MSK (0xFF) /*!< M24 bit rate part 2 mask */
#define ESP_A2D_M24_CIE_BR3_MSK (0xFF) /*!< M24 bit rate part 3 mask */
/**
* @brief A2DP SBC media codec capabilities information struct
*/
@@ -658,6 +702,9 @@ esp_err_t esp_a2d_source_deinit(void);
* audio connection mtu (retrieved from ESP_A2D_CONNECTION_STATE_EVT). if the return value is
* ESP_OK, then the audio buff is consumed, otherwise, audio buff can be reused by user.
*
* @note If use AAC codec, the raw AAC data length shall not be bigger than (mtu - 20).
* 20 is the reserved length for encapsulating LATM.
*
* @param[in] conn_hdl: connection handle
*
* @param[in] audio_buf: encoded audio data