hi_audio_frame

Function

Defines the audio frame.

Definition

typedef struct {
    hi_audio_bit_width   bit_width;
    hi_audio_snd_mode    snd_mode;
    hi_u8 ATTRIBUTE *virt_addr[HI_AUDIO_FRAME_CHN_NUM];
    hi_u64 ATTRIBUTE phys_addr[HI_AUDIO_FRAME_CHN_NUM];
    hi_u64  time_stamp;
    hi_u32  seq;
    hi_u32  len;
    hi_u32  pool_id[HI_AUDIO_FRAME_CHN_NUM];
} hi_audio_frame;

For details about basic data types hi_u8, hi_u64, and hi_u32, see Basic Data Types.

Members

Member	Description
bit_width	Audio sampling precision (bit width). For details, see hi_audio_bit_width.
snd_mode	Audio channel mode. For details, see hi_audio_snd_mode.
virt_addr	Virtual address of the audio frame data. The mono-channel data with the length of len is stored at the virtual address virt_addr [0]. The left-channel data and right-channel data of the stereo data is stored separately. To be specific, the left-channel data with the length of len is stored at the virtual address virt_addr [0], whereas the right-channel data with the length of len is stored at the virtual address virt_addr [1].
phys_addr	Physical address of the audio frame data.
time_stamp	Time stamp of the audio frame (unit: μs).
seq	Sequence number of the audio frame.
len	Length of the audio frame of a single channel (unit: byte).
pool_id	ID of an audio frame buffer pool.

Parent topic: Audio