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Audio stream: Add audio_stream_samples_without_wrap_s16/s24/s32 functions 

This patch adds functions to retrieve number of PCM samples until
source or sink buffer circular wrap need.

Signed-off-by: Seppo Ingalsuo <seppo.ingalsuo@linux.intel.com>
This commit is contained in:
Seppo Ingalsuo 2022-03-10 15:48:55 +02:00 committed by Liam Girdwood
parent 6d0ecc37cc
commit c186b41818
1 changed files with 48 additions and 0 deletions
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48
src/include/sof/audio/audio_stream.h
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@ -565,6 +565,54 @@ audio_stream_rewind_bytes_without_wrap(const struct audio_stream *source, const
return to_begin;
}
/**
* @brief Calculates numbers of s16 samples to buffer wrap when buffer
* is read forward towards end address.
* @param source Stream to get information from.
* @param ptr Read or write pointer from source
* @return Number of data s16 samples until circular wrap need at end
*/
static inline int
audio_stream_samples_without_wrap_s16(const struct audio_stream *source, const void *ptr)
{
int to_end = (int16_t *)source->end_addr - (int16_t *)ptr;
assert((intptr_t)source->end_addr >= (intptr_t)ptr);
return to_end;
}
/**
* @brief Calculates numbers of s24 samples to buffer wrap when buffer
* is read forward towards end address.
* @param source Stream to get information from.
* @param ptr Read or write pointer from source
* @return Number of data s24 samples until circular wrap need at end
*/
static inline int
audio_stream_samples_without_wrap_s24(const struct audio_stream *source, const void *ptr)
{
int to_end = (int32_t *)source->end_addr - (int32_t *)ptr;
assert((intptr_t)source->end_addr >= (intptr_t)ptr);
return to_end;
}
/**
* @brief Calculates numbers of s32 samples to buffer wrap when buffer
* is read forward towards end address.
* @param source Stream to get information from.
* @param ptr Read or write pointer from source
* @return Number of data s32 samples until circular wrap need at end
*/
static inline int
audio_stream_samples_without_wrap_s32(const struct audio_stream *source, const void *ptr)
{
int to_end = (int32_t *)source->end_addr - (int32_t *)ptr;
assert((intptr_t)source->end_addr >= (intptr_t)ptr);
return to_end;
}
/**
* @brief Calculates numbers of frames to buffer wrap and return
* minimum of calculated value.