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-rw-r--r--modules/g7221/decode.c67
-rw-r--r--modules/g7221/encode.c68
-rw-r--r--modules/g7221/g7221.c49
-rw-r--r--modules/g7221/g7221.h29
-rw-r--r--modules/g7221/module.mk14
-rw-r--r--modules/g7221/sdp.c54
6 files changed, 281 insertions, 0 deletions
diff --git a/modules/g7221/decode.c b/modules/g7221/decode.c
new file mode 100644
index 0000000..6977a12
--- /dev/null
+++ b/modules/g7221/decode.c
@@ -0,0 +1,67 @@
+/**
+ * @file g7221/decode.c G.722.1 Decode
+ *
+ * Copyright (C) 2010 Creytiv.com
+ */
+
+#include <re.h>
+#include <baresip.h>
+#include <g722_1.h>
+#include "g7221.h"
+
+
+struct audec_state {
+ g722_1_decode_state_t dec;
+};
+
+
+int g7221_decode_update(struct audec_state **adsp, const struct aucodec *ac,
+ const char *fmtp)
+{
+ const struct g7221_aucodec *g7221 = (struct g7221_aucodec *)ac;
+ struct audec_state *ads;
+ (void)fmtp;
+
+ if (!adsp || !ac)
+ return EINVAL;
+
+ ads = *adsp;
+
+ if (ads)
+ return 0;
+
+ ads = mem_alloc(sizeof(*ads), NULL);
+ if (!ads)
+ return ENOMEM;
+
+ if (!g722_1_decode_init(&ads->dec, g7221->bitrate, ac->srate)) {
+ mem_deref(ads);
+ return EPROTO;
+ }
+
+ *adsp = ads;
+
+ return 0;
+}
+
+
+int g7221_decode(struct audec_state *ads, int16_t *sampv, size_t *sampc,
+ const uint8_t *buf, size_t len)
+{
+ size_t framec;
+
+ if (!ads || !sampv || !sampc || !buf)
+ return EINVAL;
+
+ framec = len / ads->dec.bytes_per_frame;
+
+ if (len != ads->dec.bytes_per_frame * framec)
+ return EPROTO;
+
+ if (*sampc < ads->dec.frame_size * framec)
+ return ENOMEM;
+
+ *sampc = g722_1_decode(&ads->dec, sampv, buf, (int)len);
+
+ return 0;
+}
diff --git a/modules/g7221/encode.c b/modules/g7221/encode.c
new file mode 100644
index 0000000..8bb5b2b
--- /dev/null
+++ b/modules/g7221/encode.c
@@ -0,0 +1,68 @@
+/**
+ * @file g7221/encode.c G.722.1 Encode
+ *
+ * Copyright (C) 2010 Creytiv.com
+ */
+
+#include <re.h>
+#include <baresip.h>
+#include <g722_1.h>
+#include "g7221.h"
+
+
+struct auenc_state {
+ g722_1_encode_state_t enc;
+};
+
+
+int g7221_encode_update(struct auenc_state **aesp, const struct aucodec *ac,
+ struct auenc_param *prm, const char *fmtp)
+{
+ const struct g7221_aucodec *g7221 = (struct g7221_aucodec *)ac;
+ struct auenc_state *aes;
+ (void)prm;
+ (void)fmtp;
+
+ if (!aesp || !ac)
+ return EINVAL;
+
+ aes = *aesp;
+
+ if (aes)
+ return 0;
+
+ aes = mem_alloc(sizeof(*aes), NULL);
+ if (!aes)
+ return ENOMEM;
+
+ if (!g722_1_encode_init(&aes->enc, g7221->bitrate, ac->srate)) {
+ mem_deref(aes);
+ return EPROTO;
+ }
+
+ *aesp = aes;
+
+ return 0;
+}
+
+
+int g7221_encode(struct auenc_state *aes, uint8_t *buf, size_t *len,
+ const int16_t *sampv, size_t sampc)
+{
+ size_t framec;
+
+ if (!aes || !buf || !len || !sampv)
+ return EINVAL;
+
+ framec = sampc / aes->enc.frame_size;
+
+ if (sampc != aes->enc.frame_size * framec)
+ return EPROTO;
+
+ if (*len < aes->enc.bytes_per_frame * framec)
+ return ENOMEM;
+
+ *len = g722_1_encode(&aes->enc, buf, sampv, (int)sampc);
+
+ return 0;
+}
diff --git a/modules/g7221/g7221.c b/modules/g7221/g7221.c
new file mode 100644
index 0000000..a224f46
--- /dev/null
+++ b/modules/g7221/g7221.c
@@ -0,0 +1,49 @@
+/**
+ * @file g7221.c G.722.1 Video Codec
+ *
+ * Copyright (C) 2010 Creytiv.com
+ */
+
+#include <re.h>
+#include <baresip.h>
+#include "g7221.h"
+
+
+static struct g7221_aucodec g7221 = {
+ .ac = {
+ .name = "G7221",
+ .srate = 16000,
+ .ch = 1,
+ .encupdh = g7221_encode_update,
+ .ench = g7221_encode,
+ .decupdh = g7221_decode_update,
+ .dech = g7221_decode,
+ .fmtp_ench = g7221_fmtp_enc,
+ .fmtp_cmph = g7221_fmtp_cmp,
+ },
+ .bitrate = 32000,
+};
+
+
+static int module_init(void)
+{
+ aucodec_register((struct aucodec *)&g7221);
+
+ return 0;
+}
+
+
+static int module_close(void)
+{
+ aucodec_unregister((struct aucodec *)&g7221);
+
+ return 0;
+}
+
+
+EXPORT_SYM const struct mod_export DECL_EXPORTS(g7221) = {
+ "g7221",
+ "audio codec",
+ module_init,
+ module_close,
+};
diff --git a/modules/g7221/g7221.h b/modules/g7221/g7221.h
new file mode 100644
index 0000000..635fc01
--- /dev/null
+++ b/modules/g7221/g7221.h
@@ -0,0 +1,29 @@
+/**
+ * @file g7221.h Private G.722.1 Interface
+ *
+ * Copyright (C) 2010 Creytiv.com
+ */
+
+struct g7221_aucodec {
+ struct aucodec ac;
+ uint32_t bitrate;
+};
+
+/* Encode */
+int g7221_encode_update(struct auenc_state **aesp, const struct aucodec *ac,
+ struct auenc_param *prm, const char *fmtp);
+int g7221_encode(struct auenc_state *aes, uint8_t *buf, size_t *len,
+ const int16_t *sampv, size_t sampc);
+
+
+/* Decode */
+int g7221_decode_update(struct audec_state **adsp, const struct aucodec *ac,
+ const char *fmtp);
+int g7221_decode(struct audec_state *ads, int16_t *sampv, size_t *sampc,
+ const uint8_t *buf, size_t len);
+
+
+/* SDP */
+int g7221_fmtp_enc(struct mbuf *mb, const struct sdp_format *fmt,
+ bool offer, void *arg);
+bool g7221_fmtp_cmp(const char *lfmtp, const char *rfmtp, void *arg);
diff --git a/modules/g7221/module.mk b/modules/g7221/module.mk
new file mode 100644
index 0000000..e0471a7
--- /dev/null
+++ b/modules/g7221/module.mk
@@ -0,0 +1,14 @@
+#
+# module.mk
+#
+# Copyright (C) 2010 Creytiv.com
+#
+
+MOD := g7221
+$(MOD)_SRCS += decode.c
+$(MOD)_SRCS += encode.c
+$(MOD)_SRCS += g7221.c
+$(MOD)_SRCS += sdp.c
+$(MOD)_LFLAGS += -lg722_1
+
+include mk/mod.mk
diff --git a/modules/g7221/sdp.c b/modules/g7221/sdp.c
new file mode 100644
index 0000000..b46351e
--- /dev/null
+++ b/modules/g7221/sdp.c
@@ -0,0 +1,54 @@
+/**
+ * @file g7221/sdp.c H.264 SDP Functions
+ *
+ * Copyright (C) 2010 Creytiv.com
+ */
+
+#include <re.h>
+#include <baresip.h>
+#include "g7221.h"
+
+
+static uint32_t g7221_bitrate(const char *fmtp)
+{
+ struct pl pl, bitrate;
+
+ if (!fmtp)
+ return 0;
+
+ pl_set_str(&pl, fmtp);
+
+ if (fmt_param_get(&pl, "bitrate", &bitrate))
+ return pl_u32(&bitrate);
+
+ return 0;
+}
+
+
+int g7221_fmtp_enc(struct mbuf *mb, const struct sdp_format *fmt,
+ bool offer, void *arg)
+{
+ const struct g7221_aucodec *g7221 = arg;
+ (void)offer;
+
+ if (!mb || !fmt || !g7221)
+ return 0;
+
+ return mbuf_printf(mb, "a=fmtp:%s bitrate=%u\r\n",
+ fmt->id, g7221->bitrate);
+}
+
+
+bool g7221_fmtp_cmp(const char *lfmtp, const char *rfmtp, void *arg)
+{
+ const struct g7221_aucodec *g7221 = arg;
+ (void)lfmtp;
+
+ if (!g7221)
+ return false;
+
+ if (g7221->bitrate != g7221_bitrate(rfmtp))
+ return false;
+
+ return true;
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-16 13:21:44 +0000