baresip 0.4.10

1 files changed, 126 insertions, 0 deletions

diff --git a/modules/g711/g711.c b/modules/g711/g711.c
new file mode 100644
index 0000000..f1179d5
--- /dev/null
+++ b/modules/g711/g711.c
@@ -0,0 +1,126 @@
+/**
+ * @file g711.c G.711 Audio Codec
+ *
+ * Copyright (C) 2010 Creytiv.com
+ */
+
+#include <re.h>
+#include <rem.h>
+#include <baresip.h>
+
+
+static int pcmu_encode(struct auenc_state *aes, uint8_t *buf,
+		       size_t *len, const int16_t *sampv, size_t sampc)
+{
+	(void)aes;
+
+	if (!buf || !len || !sampv)
+		return EINVAL;
+
+	if (*len < sampc)
+		return ENOMEM;
+
+	*len = sampc;
+
+	while (sampc--)
+		*buf++ = g711_pcm2ulaw(*sampv++);
+
+	return 0;
+}
+
+
+static int pcmu_decode(struct audec_state *ads, int16_t *sampv,
+		       size_t *sampc, const uint8_t *buf, size_t len)
+{
+	(void)ads;
+
+	if (!sampv || !sampc || !buf)
+		return EINVAL;
+
+	if (*sampc < len)
+		return ENOMEM;
+
+	*sampc = len;
+
+	while (len--)
+		*sampv++ = g711_ulaw2pcm(*buf++);
+
+	return 0;
+}
+
+
+static int pcma_encode(struct auenc_state *aes, uint8_t *buf,
+		       size_t *len, const int16_t *sampv, size_t sampc)
+{
+	(void)aes;
+
+	if (!buf || !len || !sampv)
+		return EINVAL;
+
+	if (*len < sampc)
+		return ENOMEM;
+
+	*len = sampc;
+
+	while (sampc--)
+		*buf++ = g711_pcm2alaw(*sampv++);
+
+	return 0;
+}
+
+
+static int pcma_decode(struct audec_state *ads, int16_t *sampv,
+		       size_t *sampc, const uint8_t *buf, size_t len)
+{
+	(void)ads;
+
+	if (!sampv || !sampc || !buf)
+		return EINVAL;
+
+	if (*sampc < len)
+		return ENOMEM;
+
+	*sampc = len;
+
+	while (len--)
+		*sampv++ = g711_alaw2pcm(*buf++);
+
+	return 0;
+}
+
+
+static struct aucodec pcmu = {
+	LE_INIT, "0", "PCMU", 8000, 1, NULL,
+	NULL, pcmu_encode, NULL, pcmu_decode, NULL, NULL, NULL
+};
+
+static struct aucodec pcma = {
+	LE_INIT, "8", "PCMA", 8000, 1, NULL,
+	NULL, pcma_encode, NULL, pcma_decode, NULL, NULL, NULL
+};
+
+
+static int module_init(void)
+{
+	aucodec_register(&pcmu);
+	aucodec_register(&pcma);
+
+	return 0;
+}
+
+
+static int module_close(void)
+{
+	aucodec_unregister(&pcma);
+	aucodec_unregister(&pcmu);
+
+	return 0;
+}
+
+
+EXPORT_SYM const struct mod_export DECL_EXPORTS(g711) = {
+	"g711",
+	"audio codec",
+	module_init,
+	module_close,
+};