1 files changed, 109 insertions, 0 deletions
diff --git a/Radio/HW/BladeRF/src/streaming/format.h b/Radio/HW/BladeRF/src/streaming/format.h
new file mode 100644
index 0000000..95cf5da
--- /dev/null
+++ b/Radio/HW/BladeRF/src/streaming/format.h
@@ -0,0 +1,109 @@
+/*
+ * This file is part of the bladeRF project:
+ *   http://www.github.com/nuand/bladeRF
+ *
+ * Copyright (C) 2014 Nuand LLC
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef STREAMING_FORMAT_H_
+#define STREAMING_FORMAT_H_
+
+#include "rel_assert.h"
+
+/*
+ * Convert SC8Q8 samples to bytes
+ */
+static inline size_t sc8q7_to_bytes(size_t n_samples)
+{
+    const size_t sample_size = 2 * sizeof(int8_t);
+    assert(n_samples <= (SIZE_MAX / sample_size));
+    return n_samples * sample_size;
+}
+
+/*
+ * Convert bytes to SC8Q8 samples
+ */
+static inline size_t bytes_to_sc8q7(size_t n_bytes)
+{
+    const size_t sample_size = 2 * sizeof(int8_t);
+    assert((n_bytes % sample_size) == 0);
+    return n_bytes / sample_size;
+}
+
+/*
+ * Convert SC16Q11 samples to bytes
+ */
+static inline size_t sc16q11_to_bytes(size_t n_samples)
+{
+    const size_t sample_size = 2 * sizeof(int16_t);
+    assert(n_samples <= (SIZE_MAX / sample_size));
+    return n_samples * sample_size;
+}
+
+/*
+ * Convert bytes to SC16Q11 samples
+ */
+static inline size_t bytes_to_sc16q11(size_t n_bytes)
+{
+    const size_t sample_size = 2 * sizeof(int16_t);
+    assert((n_bytes % sample_size) == 0);
+    return n_bytes / sample_size;
+}
+
+/* Covert samples to bytes based upon the provided format */
+static inline size_t samples_to_bytes(bladerf_format format, size_t n)
+{
+    switch (format) {
+        case BLADERF_FORMAT_SC8_Q7:
+        case BLADERF_FORMAT_SC8_Q7_META:
+            return sc8q7_to_bytes(n);
+
+        case BLADERF_FORMAT_SC16_Q11:
+        case BLADERF_FORMAT_SC16_Q11_META:
+            return sc16q11_to_bytes(n);
+
+        case BLADERF_FORMAT_PACKET_META:
+            return n*4;
+
+        default:
+            assert(!"Invalid format");
+            return 0;
+    }
+}
+
+/* Convert bytes to samples based upon the provided format */
+static inline size_t bytes_to_samples(bladerf_format format, size_t n)
+{
+    switch (format) {
+        case BLADERF_FORMAT_SC8_Q7:
+        case BLADERF_FORMAT_SC8_Q7_META:
+            return bytes_to_sc8q7(n);
+
+        case BLADERF_FORMAT_SC16_Q11:
+        case BLADERF_FORMAT_SC16_Q11_META:
+            return bytes_to_sc16q11(n);
+
+        case BLADERF_FORMAT_PACKET_META:
+            return (n+3)/4;
+
+        default:
+            assert(!"Invalid format");
+            return 0;
+    }
+}
+
+#endif