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Diffstat (limited to 'cras/src/server/cras_audio_area.c')
-rw-r--r--cras/src/server/cras_audio_area.c105
1 files changed, 0 insertions, 105 deletions
diff --git a/cras/src/server/cras_audio_area.c b/cras/src/server/cras_audio_area.c
deleted file mode 100644
index 18615733..00000000
--- a/cras/src/server/cras_audio_area.c
+++ /dev/null
@@ -1,105 +0,0 @@
-/* Copyright (c) 2014 The Chromium OS Authors. All rights reserved.
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-#include <stdlib.h>
-#include <sys/param.h>
-
-#include "cras_audio_area.h"
-#include "cras_audio_format.h"
-#include "cras_mix.h"
-
-struct cras_audio_area *cras_audio_area_create(int num_channels)
-{
- struct cras_audio_area *area;
- size_t sz;
-
- sz = sizeof(*area) + num_channels * sizeof(struct cras_channel_area);
- area = calloc(1, sz);
- area->num_channels = num_channels;
-
- return area;
-}
-
-unsigned int cras_audio_area_copy(const struct cras_audio_area *dst,
- unsigned int dst_offset,
- const struct cras_audio_format *dst_fmt,
- const struct cras_audio_area *src,
- unsigned int src_offset,
- float software_gain_scaler)
-{
- unsigned int src_idx, dst_idx;
- unsigned int ncopy;
- uint8_t *schan, *dchan;
-
- ncopy = MIN(src->frames - src_offset, dst->frames - dst_offset);
-
- /* TODO(dgreid) - this replaces a memcpy, it needs to be way faster. */
- for (src_idx = 0; src_idx < src->num_channels; src_idx++) {
- for (dst_idx = 0; dst_idx < dst->num_channels; dst_idx++) {
- if (!(src->channels[src_idx].ch_set &
- dst->channels[dst_idx].ch_set))
- continue;
-
- schan = src->channels[src_idx].buf +
- src_offset * src->channels[src_idx].step_bytes;
- dchan = dst->channels[dst_idx].buf +
- dst_offset * dst->channels[dst_idx].step_bytes;
-
- cras_mix_add_scale_stride(
- dst_fmt->format, dchan, schan, ncopy,
- dst->channels[dst_idx].step_bytes,
- src->channels[src_idx].step_bytes,
- software_gain_scaler);
- }
- }
-
- return ncopy;
-}
-
-void cras_audio_area_destroy(struct cras_audio_area *area)
-{
- free(area);
-}
-
-void cras_audio_area_config_channels(struct cras_audio_area *area,
- const struct cras_audio_format *fmt)
-{
- unsigned int i, ch;
-
- /* For mono, config the channel type to match both front
- * left and front right.
- * TODO(hychao): add more mapping when we have like {FL, FC}
- * for mono + kb mic.
- */
- if ((fmt->num_channels == 1) &&
- ((fmt->channel_layout[CRAS_CH_FC] == 0) ||
- (fmt->channel_layout[CRAS_CH_FL] == 0))) {
- channel_area_set_channel(area->channels, CRAS_CH_FL);
- channel_area_set_channel(area->channels, CRAS_CH_FR);
- return;
- }
-
- for (i = 0; i < fmt->num_channels; i++) {
- area->channels[i].ch_set = 0;
- for (ch = 0; ch < CRAS_CH_MAX; ch++)
- if (fmt->channel_layout[ch] == i)
- channel_area_set_channel(&area->channels[i],
- ch);
- }
-}
-
-void cras_audio_area_config_buf_pointers(struct cras_audio_area *area,
- const struct cras_audio_format *fmt,
- uint8_t *base_buffer)
-{
- int i;
- const int sample_size = snd_pcm_format_physical_width(fmt->format) / 8;
-
- /* TODO(dgreid) - assuming interleaved audio here for now. */
- for (i = 0; i < area->num_channels; i++) {
- area->channels[i].step_bytes = cras_get_format_bytes(fmt);
- area->channels[i].buf = base_buffer + i * sample_size;
- }
-}