## **Details**
## **Field **
## bitrate
```
uint32_t AudioTrackInfo::bitrate
```
**Description:**
Audio and video bit rate
## channels
```
uint16_t AudioTrackInfo::channels
```
**Description:**
Number of audio channels
## durationMs
```
int64_t AudioTrackInfo::durationMs
```
**Description:**
Stream duration, in milliseconds
## format
```
[CodecFormat](format.md#gaf7ed135f15d4b218d41705bac0122ba7) AudioTrackInfo::format
```
**Description:**
Audio encoding format. For details, see [CodecFormat](format.md#gaf7ed135f15d4b218d41705bac0122ba7).
## language
```
char AudioTrackInfo::language[[FORMAT_LANGUAGE_LEN](format.md#gaa70508bb1089c99f9aa3d59fcbdfa8eb)]
```
**Description:**
Audio track language
## profile
```
uint32_t AudioTrackInfo::profile
```
**Description:**
Audio encoding profile, for example, **0x160\(WMAV1\)** and **0x161 \(WMAV2\)**.
## sampleFmt
```
uint16_t AudioTrackInfo::sampleFmt
```
**Description:**
Data storage format of one sample in an audio channel. For details, see [AudioSampleFmt](format.md#gadf0700999998f587f0017c4d02977b22).
## sampleRate
```
uint32_t AudioTrackInfo::sampleRate
```
**Description:**
Audio sampling rate, for example, **8000**, **16000**, **24000**, **32000**, **11025**, **22050**, **441000**, and **48000**
## subStreamID
```
int32_t AudioTrackInfo::subStreamID
```
**Description:**
ID of the subsidiary audio stream, which is used when the encoding or decoding format of the primary stream is not supported for audio rendering.