Base class for AMR codec implementations.
More...
#include <AMRCodec.h>
|
| virtual int | encode (const int16_t *pcmSamples, size_t sampleCount, uint8_t *amrData, size_t amrBufferSize)=0 |
| | Encodes PCM audio samples to AMR format. More...
|
| |
| virtual int | decode (const uint8_t *amrData, size_t amrSize, int16_t *pcmSamples, size_t maxSampleCount)=0 |
| | Decodes AMR format to PCM audio samples. More...
|
| |
| virtual int | getSampleRate () const =0 |
| | Get sample rate used by the codec. More...
|
| |
| virtual int | getFrameSizeSamples ()=0 |
| | Get the number of samples per frame. More...
|
| |
| virtual int | getEncodedFrameSizeBytes ()=0 |
| | Get the size in bytes of one encoded frame. More...
|
| |
|
|
bool | isInitialized = false |
| |
Base class for AMR codec implementations.
◆ decode()
| virtual int AMRCodec::decode |
( |
const uint8_t * |
amrData, |
|
|
size_t |
amrSize, |
|
|
int16_t * |
pcmSamples, |
|
|
size_t |
maxSampleCount |
|
) |
| |
|
pure virtual |
Decodes AMR format to PCM audio samples.
- Parameters
-
| amrData | Input AMR encoded data |
| amrSize | Size of AMR data in bytes |
| pcmSamples | Output buffer for decoded PCM samples |
| maxSampleCount | Maximum number of samples that can be written to pcmSamples |
- Returns
- Number of decoded samples
Implemented in AMRWB, and AMRNB.
◆ encode()
| virtual int AMRCodec::encode |
( |
const int16_t * |
pcmSamples, |
|
|
size_t |
sampleCount, |
|
|
uint8_t * |
amrData, |
|
|
size_t |
amrBufferSize |
|
) |
| |
|
pure virtual |
Encodes PCM audio samples to AMR format.
- Parameters
-
| pcmSamples | Input PCM audio samples |
| sampleCount | Number of samples to encode |
| amrData | Buffer to store encoded AMR data |
| amrBufferSize | Size of the AMR buffer in bytes |
- Returns
- Number of bytes written to amrData
Implemented in AMRWB, and AMRNB.
◆ getEncodedFrameSizeBytes()
| virtual int AMRCodec::getEncodedFrameSizeBytes |
( |
| ) |
|
|
pure virtual |
Get the size in bytes of one encoded frame.
- Returns
- Number of bytes for one encoded frame in current mode
Implemented in AMRWB, and AMRNB.
◆ getFrameSizeSamples()
| virtual int AMRCodec::getFrameSizeSamples |
( |
| ) |
|
|
pure virtual |
Get the number of samples per frame.
- Returns
- NB: 160 samples/frame, WB: 320 samples/frame
Implemented in AMRWB, and AMRNB.
◆ getSampleRate()
| virtual int AMRCodec::getSampleRate |
( |
| ) |
const |
|
pure virtual |
Get sample rate used by the codec.
- Returns
- Sample rate in Hz (8000 for NB, 16000 for WB)
Implemented in AMRWB, and AMRNB.
The documentation for this class was generated from the following file:
