1 files changed, 99 insertions, 0 deletions
diff --git a/circuitpython/shared-module/audiocore/RawSample.c b/circuitpython/shared-module/audiocore/RawSample.c
new file mode 100644
index 0000000..e7d765e
--- /dev/null
+++ b/circuitpython/shared-module/audiocore/RawSample.c
@@ -0,0 +1,99 @@
+/*
+ * This file is part of the Micro Python project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2018 Scott Shawcroft for Adafruit Industries
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include "shared-bindings/audiocore/RawSample.h"
+
+#include <stdint.h>
+
+#include "shared-module/audiocore/RawSample.h"
+
+void common_hal_audioio_rawsample_construct(audioio_rawsample_obj_t *self,
+    uint8_t *buffer,
+    uint32_t len,
+    uint8_t bytes_per_sample,
+    bool samples_signed,
+    uint8_t channel_count,
+    uint32_t sample_rate) {
+    self->buffer = buffer;
+    self->bits_per_sample = bytes_per_sample * 8;
+    self->samples_signed = samples_signed;
+    self->len = len;
+    self->channel_count = channel_count;
+    self->sample_rate = sample_rate;
+}
+
+void common_hal_audioio_rawsample_deinit(audioio_rawsample_obj_t *self) {
+    self->buffer = NULL;
+}
+bool common_hal_audioio_rawsample_deinited(audioio_rawsample_obj_t *self) {
+    return self->buffer == NULL;
+}
+
+uint32_t common_hal_audioio_rawsample_get_sample_rate(audioio_rawsample_obj_t *self) {
+    return self->sample_rate;
+}
+void common_hal_audioio_rawsample_set_sample_rate(audioio_rawsample_obj_t *self,
+    uint32_t sample_rate) {
+    self->sample_rate = sample_rate;
+}
+uint8_t common_hal_audioio_rawsample_get_bits_per_sample(audioio_rawsample_obj_t *self) {
+    return self->bits_per_sample;
+}
+uint8_t common_hal_audioio_rawsample_get_channel_count(audioio_rawsample_obj_t *self) {
+    return self->channel_count;
+}
+
+void audioio_rawsample_reset_buffer(audioio_rawsample_obj_t *self,
+    bool single_channel_output,
+    uint8_t channel) {
+}
+
+audioio_get_buffer_result_t audioio_rawsample_get_buffer(audioio_rawsample_obj_t *self,
+    bool single_channel_output,
+    uint8_t channel,
+    uint8_t **buffer,
+    uint32_t *buffer_length) {
+    *buffer_length = self->len;
+    if (single_channel_output) {
+        *buffer = self->buffer + (channel % self->channel_count) * (self->bits_per_sample / 8);
+    } else {
+        *buffer = self->buffer;
+    }
+    return GET_BUFFER_DONE;
+}
+
+void audioio_rawsample_get_buffer_structure(audioio_rawsample_obj_t *self, bool single_channel_output,
+    bool *single_buffer, bool *samples_signed,
+    uint32_t *max_buffer_length, uint8_t *spacing) {
+    *single_buffer = true;
+    *samples_signed = self->samples_signed;
+    *max_buffer_length = self->len;
+    if (single_channel_output) {
+        *spacing = self->channel_count;
+    } else {
+        *spacing = 1;
+    }
+}