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fix(i2s): fixed incorrect buf size calculation

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This commit is contained in:
laokaiyao 2024-12-12 21:28:59 +08:00
parent e5b60eb20b
commit ff937be091
1 changed files with 4 additions and 0 deletions
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4
components/driver/i2s/i2s_common.c
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@ -353,7 +353,11 @@ err:
uint32_t i2s_get_buf_size(i2s_chan_handle_t handle, uint32_t data_bit_width, uint32_t dma_frame_num)
{
uint32_t active_chan = handle->active_slot;
#if CONFIG_IDF_TARGET_ESP32
uint32_t bytes_per_sample = ((data_bit_width + 15) / 16) * 2;
#else
uint32_t bytes_per_sample = (data_bit_width + 7) / 8;
#endif // CONFIG_IDF_TARGET_ESP32
uint32_t bytes_per_frame = bytes_per_sample * active_chan;
uint32_t bufsize = dma_frame_num * bytes_per_frame;
/* Limit DMA buffer size if it is out of range (DMA buffer limitation is 4092 bytes) */