This patch adds to component volume S24_4LE to S24_4LE processing. The macro from audio/format.h is used to compute shifts needed for product.

Signed-off-by: Seppo Ingalsuo seppo.ingalsuo@linux.intel.com --- src/audio/volume.c | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+)

diff --git a/src/audio/volume.c b/src/audio/volume.c index be6197e..b7e8e39 100644 --- a/src/audio/volume.c +++ b/src/audio/volume.c @@ -41,6 +41,7 @@ #include <reef/clock.h> #include <reef/audio/component.h> #include <reef/audio/pipeline.h> +#include <reef/audio/format.h>

#define trace_volume(__e) trace_event(TRACE_CLASS_VOLUME, __e) #define tracev_volume(__e) tracev_event(TRACE_CLASS_VOLUME, __e) @@ -214,6 +215,26 @@ static void vol_s24_to_s32(struct comp_dev *dev, struct comp_buffer *sink, } }

+/* Copy and scale volume from 24 bit source buffer to 24 bit on 32 bit boundary + * dest buffer. + */ +static void vol_s24_to_s24(struct comp_dev *dev, struct comp_buffer *sink, + struct comp_buffer *source, uint32_t frames) +{ + struct comp_data *cd = comp_get_drvdata(dev); + int32_t i, *src = (int32_t*) source->r_ptr; + int32_t *dest = (int32_t*) sink->w_ptr; + + /* buffer sizes are always divisible by period frames */ + /* Samples are Q1.23 and volume is Q1.16 */ + for (i = 0; i < frames * 2; i += 2) { + dest[i] = (int32_t)(Q_MULTS_32X32( + (int64_t)src[i], cd->volume[0], 23, 16, 23)); + dest[i + 1] = (int32_t)(Q_MULTS_32X32( + (int64_t)src[i+1], cd->volume[1], 23, 16, 23)); + } +} + /* map of source and sink buffer formats to volume function */ static const struct comp_func_map func_map[] = { {SOF_IPC_FRAME_S16_LE, SOF_IPC_FRAME_S16_LE, 2, vol_s16_to_s16}, @@ -224,6 +245,7 @@ static const struct comp_func_map func_map[] = { {SOF_IPC_FRAME_S24_4LE, SOF_IPC_FRAME_S16_LE, 2, vol_s24_to_s16}, {SOF_IPC_FRAME_S32_LE, SOF_IPC_FRAME_S24_4LE, 2, vol_s32_to_s24}, {SOF_IPC_FRAME_S24_4LE, SOF_IPC_FRAME_S32_LE, 2, vol_s24_to_s32}, + {SOF_IPC_FRAME_S24_4LE, SOF_IPC_FRAME_S24_4LE, 2, vol_s24_to_s24}, };

/* synchronise host mmap() volume with real value */