-/*
- *
+/* GStreamer RTP SBC payloader
* BlueZ - Bluetooth protocol stack for Linux
*
* Copyright (C) 2004-2010 Marcel Holtmann <marcel@holtmann.org>
*
- *
* 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
#include <config.h>
#endif
-#include "gstpragma.h"
#include "gstrtpsbcpay.h"
#include <math.h>
#include <string.h>
#define DEFAULT_MIN_FRAMES 0
#define RTP_SBC_HEADER_TOTAL (12 + RTP_SBC_PAYLOAD_HEADER_SIZE)
-#if __BYTE_ORDER == __LITTLE_ENDIAN
+#if G_BYTE_ORDER == G_LITTLE_ENDIAN
+/* FIXME: this seems all a bit over the top for a single byte.. */
struct rtp_payload
{
guint8 frame_count:4;
guint8 is_fragmented:1;
} __attribute__ ((packed));
-#elif __BYTE_ORDER == __BIG_ENDIAN
+#elif G_BYTE_ORDER == G_BIG_ENDIAN
struct rtp_payload
{
GST_DEBUG_CATEGORY_STATIC (gst_rtp_sbc_pay_debug);
#define GST_CAT_DEFAULT gst_rtp_sbc_pay_debug
-GST_BOILERPLATE (GstRtpSBCPay, gst_rtp_sbc_pay, GstBaseRTPPayload,
- GST_TYPE_BASE_RTP_PAYLOAD);
-
-static const GstElementDetails gst_rtp_sbc_pay_details =
-GST_ELEMENT_DETAILS ("RTP packet payloader",
- "Codec/Payloader/Network",
- "Payload SBC audio as RTP packets",
- "Thiago Sousa Santos " "<thiagoss@lcc.ufcg.edu.br>");
+#define parent_class gst_rtp_sbc_pay_parent_class
+G_DEFINE_TYPE (GstRtpSBCPay, gst_rtp_sbc_pay, GST_TYPE_RTP_BASE_PAYLOAD);
static GstStaticPadTemplate gst_rtp_sbc_pay_sink_factory =
GST_STATIC_PAD_TEMPLATE ("sink", GST_PAD_SINK, GST_PAD_ALWAYS,
GST_STATIC_CAPS ("audio/x-sbc, "
"rate = (int) { 16000, 32000, 44100, 48000 }, "
"channels = (int) [ 1, 2 ], "
- "mode = (string) { \"mono\", \"dual\", \"stereo\", \"joint\" }, "
+ "mode = (string) { mono, dual, stereo, joint }, "
"blocks = (int) { 4, 8, 12, 16 }, "
"subbands = (int) { 4, 8 }, "
- "allocation = (string) { \"snr\", \"loudness\" }, "
- "bitpool = (int) [ 2, 64 ]")
+ "allocation = (string) { snr, loudness }, " "bitpool = (int) [ 2, 64 ]")
);
static GstStaticPadTemplate gst_rtp_sbc_pay_src_factory =
GST_STATIC_PAD_TEMPLATE ("src", GST_PAD_SRC, GST_PAD_ALWAYS,
GST_STATIC_CAPS ("application/x-rtp, "
- "media = (string) \"audio\","
+ "media = (string) audio,"
"payload = (int) " GST_RTP_PAYLOAD_DYNAMIC_STRING ", "
"clock-rate = (int) { 16000, 32000, 44100, 48000 },"
- "encoding-name = (string) \"SBC\"")
+ "encoding-name = (string) SBC")
);
static void gst_rtp_sbc_pay_set_property (GObject * object, guint prop_id,
}
static gboolean
-gst_rtp_sbc_pay_set_caps (GstBaseRTPPayload * payload, GstCaps * caps)
+gst_rtp_sbc_pay_set_caps (GstRTPBasePayload * payload, GstCaps * caps)
{
GstRtpSBCPay *sbcpay;
gint rate, subbands, channels, blocks, bitpool;
sbcpay->frame_length = frame_len;
- gst_basertppayload_set_options (payload, "audio", TRUE, "SBC", rate);
+ gst_rtp_base_payload_set_options (payload, "audio", TRUE, "SBC", rate);
GST_DEBUG_OBJECT (payload, "calculated frame length: %d ", frame_len);
- return gst_basertppayload_set_outcaps (payload, NULL);
+ return gst_rtp_base_payload_set_outcaps (payload, NULL);
}
static GstFlowReturn
gst_rtp_sbc_pay_flush_buffers (GstRtpSBCPay * sbcpay)
{
+ GstRTPBuffer rtp;
guint available;
guint max_payload;
GstBuffer *outbuf;
available = gst_adapter_available (sbcpay->adapter);
max_payload =
- gst_rtp_buffer_calc_payload_len (GST_BASE_RTP_PAYLOAD_MTU (sbcpay) -
+ gst_rtp_buffer_calc_payload_len (GST_RTP_BASE_PAYLOAD_MTU (sbcpay) -
RTP_SBC_PAYLOAD_HEADER_SIZE, 0, 0);
max_payload = MIN (max_payload, available);
outbuf = gst_rtp_buffer_new_allocate (payload_length +
RTP_SBC_PAYLOAD_HEADER_SIZE, 0, 0);
- gst_rtp_buffer_set_payload_type (outbuf, GST_BASE_RTP_PAYLOAD_PT (sbcpay));
+ /* get payload */
+ gst_rtp_buffer_map (outbuf, GST_MAP_WRITE, &rtp);
- payload_data = gst_rtp_buffer_get_payload (outbuf);
+ gst_rtp_buffer_set_payload_type (&rtp, GST_RTP_BASE_PAYLOAD_PT (sbcpay));
+
+ /* write header and copy data into payload */
+ payload_data = gst_rtp_buffer_get_payload (&rtp);
payload = (struct rtp_payload *) payload_data;
memset (payload, 0, sizeof (struct rtp_payload));
payload->frame_count = frame_count;
gst_adapter_copy (sbcpay->adapter, payload_data +
RTP_SBC_PAYLOAD_HEADER_SIZE, 0, payload_length);
+
+ gst_rtp_buffer_unmap (&rtp);
+
gst_adapter_flush (sbcpay->adapter, payload_length);
+ /* FIXME: what about duration? */
GST_BUFFER_TIMESTAMP (outbuf) = sbcpay->timestamp;
GST_DEBUG_OBJECT (sbcpay, "Pushing %d bytes", payload_length);
- return gst_basertppayload_push (GST_BASE_RTP_PAYLOAD (sbcpay), outbuf);
+ return gst_rtp_base_payload_push (GST_RTP_BASE_PAYLOAD (sbcpay), outbuf);
}
static GstFlowReturn
-gst_rtp_sbc_pay_handle_buffer (GstBaseRTPPayload * payload, GstBuffer * buffer)
+gst_rtp_sbc_pay_handle_buffer (GstRTPBasePayload * payload, GstBuffer * buffer)
{
GstRtpSBCPay *sbcpay;
guint available;
available = gst_adapter_available (sbcpay->adapter);
if (available + RTP_SBC_HEADER_TOTAL >=
- GST_BASE_RTP_PAYLOAD_MTU (sbcpay) ||
+ GST_RTP_BASE_PAYLOAD_MTU (sbcpay) ||
(available > (sbcpay->min_frames * sbcpay->frame_length)))
return gst_rtp_sbc_pay_flush_buffers (sbcpay);
}
static gboolean
-gst_rtp_sbc_pay_handle_event (GstPad * pad, GstEvent * event)
+gst_rtp_sbc_pay_sink_event (GstRTPBasePayload * payload, GstEvent * event)
{
- GstRtpSBCPay *sbcpay = GST_RTP_SBC_PAY (GST_PAD_PARENT (pad));
+ GstRtpSBCPay *sbcpay = GST_RTP_SBC_PAY (payload);
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_EOS:
break;
}
- return FALSE;
-}
-
-static void
-gst_rtp_sbc_pay_base_init (gpointer g_class)
-{
- GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
-
- gst_element_class_add_pad_template (element_class,
- gst_static_pad_template_get (&gst_rtp_sbc_pay_sink_factory));
- gst_element_class_add_pad_template (element_class,
- gst_static_pad_template_get (&gst_rtp_sbc_pay_src_factory));
-
- gst_element_class_set_details (element_class, &gst_rtp_sbc_pay_details);
+ return GST_RTP_BASE_PAYLOAD_CLASS (parent_class)->sink_event (payload, event);
}
static void
gst_rtp_sbc_pay_finalize (GObject * object)
{
GstRtpSBCPay *sbcpay = GST_RTP_SBC_PAY (object);
+
g_object_unref (sbcpay->adapter);
GST_CALL_PARENT (G_OBJECT_CLASS, finalize, (object));
static void
gst_rtp_sbc_pay_class_init (GstRtpSBCPayClass * klass)
{
- GObjectClass *gobject_class;
- GstBaseRTPPayloadClass *payload_class = GST_BASE_RTP_PAYLOAD_CLASS (klass);
-
- gobject_class = G_OBJECT_CLASS (klass);
- parent_class = g_type_class_peek_parent (klass);
+ GstRTPBasePayloadClass *payload_class = GST_RTP_BASE_PAYLOAD_CLASS (klass);
+ GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
+ GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
- gobject_class->finalize = GST_DEBUG_FUNCPTR (gst_rtp_sbc_pay_finalize);
- gobject_class->set_property =
- GST_DEBUG_FUNCPTR (gst_rtp_sbc_pay_set_property);
- gobject_class->get_property =
- GST_DEBUG_FUNCPTR (gst_rtp_sbc_pay_get_property);
+ gobject_class->finalize = gst_rtp_sbc_pay_finalize;
+ gobject_class->set_property = gst_rtp_sbc_pay_set_property;
+ gobject_class->get_property = gst_rtp_sbc_pay_get_property;
payload_class->set_caps = GST_DEBUG_FUNCPTR (gst_rtp_sbc_pay_set_caps);
payload_class->handle_buffer =
GST_DEBUG_FUNCPTR (gst_rtp_sbc_pay_handle_buffer);
- payload_class->handle_event =
- GST_DEBUG_FUNCPTR (gst_rtp_sbc_pay_handle_event);
+ payload_class->sink_event = GST_DEBUG_FUNCPTR (gst_rtp_sbc_pay_sink_event);
/* properties */
g_object_class_install_property (G_OBJECT_CLASS (klass),
"(-1 for maximum allowed by the mtu)",
-1, G_MAXINT, DEFAULT_MIN_FRAMES, G_PARAM_READWRITE));
+ gst_element_class_add_pad_template (element_class,
+ gst_static_pad_template_get (&gst_rtp_sbc_pay_sink_factory));
+ gst_element_class_add_pad_template (element_class,
+ gst_static_pad_template_get (&gst_rtp_sbc_pay_src_factory));
+
+ gst_element_class_set_static_metadata (element_class, "RTP packet payloader",
+ "Codec/Payloader/Network", "Payload SBC audio as RTP packets",
+ "Thiago Sousa Santos <thiagoss@lcc.ufcg.edu.br>");
+
GST_DEBUG_CATEGORY_INIT (gst_rtp_sbc_pay_debug, "rtpsbcpay", 0,
"RTP SBC payloader");
}
}
static void
-gst_rtp_sbc_pay_init (GstRtpSBCPay * self, GstRtpSBCPayClass * klass)
+gst_rtp_sbc_pay_init (GstRtpSBCPay * self)
{
self->adapter = gst_adapter_new ();
self->frame_length = 0;