src/pcm_resample.h File Reference
#include "pcm_buffer.h"
#include "config.h"
#include <stdint.h>
#include <stddef.h>
#include <stdbool.h>
Go to the source code of this file.
Data Structures |
struct | pcm_resample_state |
| This object is statically allocated (within another struct), and holds buffer allocations and the state for the resampler. More...
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Functions |
void | pcm_resample_init (struct pcm_resample_state *state) |
| Initializes a pcm_resample_state object.
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void | pcm_resample_deinit (struct pcm_resample_state *state) |
| Deinitializes a pcm_resample_state object and frees allocated memory.
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const int16_t * | pcm_resample_16 (struct pcm_resample_state *state, uint8_t channels, unsigned src_rate, const int16_t *src_buffer, size_t src_size, unsigned dest_rate, size_t *dest_size_r) |
| Resamples 16 bit PCM data.
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const int32_t * | pcm_resample_32 (struct pcm_resample_state *state, uint8_t channels, unsigned src_rate, const int32_t *src_buffer, size_t src_size, unsigned dest_rate, size_t *dest_size_r) |
| Resamples 32 bit PCM data.
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static const int32_t * | pcm_resample_24 (struct pcm_resample_state *state, uint8_t channels, unsigned src_rate, const int32_t *src_buffer, size_t src_size, unsigned dest_rate, size_t *dest_size_r) |
| Resamples 24 bit PCM data.
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Function Documentation
const int16_t* pcm_resample_16 |
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struct pcm_resample_state * |
state, |
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uint8_t |
channels, |
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unsigned |
src_rate, |
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const int16_t * |
src_buffer, |
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size_t |
src_size, |
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unsigned |
dest_rate, |
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size_t * |
dest_size_r | |
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) |
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Resamples 16 bit PCM data.
- Parameters:
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| state | an initialized pcm_resample_state object |
| channels | the number of channels |
| src_rate | the source sample rate |
| src | the source PCM buffer |
| src_size | the size of src in bytes |
| dest_rate | the requested destination sample rate |
| dest_size_r | returns the number of bytes of the destination buffer |
- Returns:
- the destination buffer
static const int32_t* pcm_resample_24 |
( |
struct pcm_resample_state * |
state, |
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uint8_t |
channels, |
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unsigned |
src_rate, |
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const int32_t * |
src_buffer, |
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size_t |
src_size, |
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unsigned |
dest_rate, |
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size_t * |
dest_size_r | |
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) |
| | [inline, static] |
Resamples 24 bit PCM data.
- Parameters:
-
| state | an initialized pcm_resample_state object |
| channels | the number of channels |
| src_rate | the source sample rate |
| src | the source PCM buffer |
| src_size | the size of src in bytes |
| dest_rate | the requested destination sample rate |
| dest_size_r | returns the number of bytes of the destination buffer |
- Returns:
- the destination buffer
Definition at line 121 of file pcm_resample.h.
const int32_t* pcm_resample_32 |
( |
struct pcm_resample_state * |
state, |
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uint8_t |
channels, |
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unsigned |
src_rate, |
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const int32_t * |
src_buffer, |
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size_t |
src_size, |
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unsigned |
dest_rate, |
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size_t * |
dest_size_r | |
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) |
| | |
Resamples 32 bit PCM data.
- Parameters:
-
| state | an initialized pcm_resample_state object |
| channels | the number of channels |
| src_rate | the source sample rate |
| src | the source PCM buffer |
| src_size | the size of src in bytes |
| dest_rate | the requested destination sample rate |
| dest_size_r | returns the number of bytes of the destination buffer |
- Returns:
- the destination buffer