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Original commit message from CVS: Patch by: j^ <j at bootlab dot org> * ext/alsa/gstalsamixerelement.c: (gst_alsa_mixer_element_class_init): * ext/alsa/gstalsasink.c: * ext/alsa/gstalsasrc.c: (gst_alsasrc_class_init): * ext/ogg/gstoggdemux.c: * ext/ogg/gstoggmux.c: * ext/ogg/gstoggparse.c: * ext/pango/gstclockoverlay.c: * ext/pango/gsttextoverlay.c: * ext/pango/gsttextrender.c: * ext/pango/gsttimeoverlay.c: * ext/theora/theoradec.c: * ext/theora/theoraenc.c: * ext/vorbis/vorbisdec.c: * ext/vorbis/vorbisenc.c: * gst/audioconvert/gstaudioconvert.c: * gst/subparse/gstsubparse.c: * gst/tcp/gstmultifdsink.c: * gst/tcp/gsttcpclientsink.c: * gst/tcp/gsttcpclientsrc.c: * gst/tcp/gsttcpserversink.c: * gst/tcp/gsttcpserversrc.c: better/unified long descriptions Fixes #336477
435 lines
12 KiB
C
435 lines
12 KiB
C
/* GStreamer
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* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
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* Copyright (C) <2004> Thomas Vander Stichele <thomas at apestaart dot org>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <gst/gst-i18n-plugin.h>
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#include "gsttcp.h"
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#include "gsttcpclientsrc.h"
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#include <string.h> /* memset */
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#include <unistd.h>
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#include <arpa/inet.h>
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#include <fcntl.h>
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/* control stuff stolen from fdsrc */
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#define CONTROL_STOP 'S' /* stop the select call */
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#define CONTROL_SOCKETS(o) o->control_fds
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#define WRITE_SOCKET(o) o->control_fds[1]
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#define READ_SOCKET(o) o->control_fds[0]
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#define SEND_COMMAND(o, command) \
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G_STMT_START { \
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unsigned char c; c = command; \
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write (WRITE_SOCKET(o), &c, 1); \
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} G_STMT_END
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#define READ_COMMAND(o, command, res) \
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G_STMT_START { \
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res = read(READ_SOCKET(o), &command, 1); \
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} G_STMT_END
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GST_DEBUG_CATEGORY (tcpclientsrc_debug);
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#define GST_CAT_DEFAULT tcpclientsrc_debug
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#define MAX_READ_SIZE 4 * 1024
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static GstElementDetails gst_tcp_client_src_details =
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GST_ELEMENT_DETAILS ("TCP client source",
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"Source/Network",
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"Receive data as a client over the network via TCP",
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"Thomas Vander Stichele <thomas at apestaart dot org>");
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static GstStaticPadTemplate srctemplate = GST_STATIC_PAD_TEMPLATE ("src",
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GST_PAD_SRC,
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GST_PAD_ALWAYS,
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GST_STATIC_CAPS_ANY);
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enum
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{
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PROP_0,
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PROP_HOST,
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PROP_PORT,
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PROP_PROTOCOL
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};
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GST_BOILERPLATE (GstTCPClientSrc, gst_tcp_client_src, GstPushSrc,
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GST_TYPE_PUSH_SRC);
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static void gst_tcp_client_src_finalize (GObject * gobject);
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static GstCaps *gst_tcp_client_src_getcaps (GstBaseSrc * psrc);
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static GstFlowReturn gst_tcp_client_src_create (GstPushSrc * psrc,
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GstBuffer ** outbuf);
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static gboolean gst_tcp_client_src_stop (GstBaseSrc * bsrc);
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static gboolean gst_tcp_client_src_start (GstBaseSrc * bsrc);
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static gboolean gst_tcp_client_src_unlock (GstBaseSrc * bsrc);
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static void gst_tcp_client_src_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec);
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static void gst_tcp_client_src_get_property (GObject * object, guint prop_id,
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GValue * value, GParamSpec * pspec);
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static void
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gst_tcp_client_src_base_init (gpointer g_class)
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{
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GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
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gst_element_class_add_pad_template (element_class,
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gst_static_pad_template_get (&srctemplate));
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gst_element_class_set_details (element_class, &gst_tcp_client_src_details);
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}
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static void
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gst_tcp_client_src_class_init (GstTCPClientSrcClass * klass)
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{
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GObjectClass *gobject_class;
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GstBaseSrcClass *gstbasesrc_class;
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GstPushSrcClass *gstpush_src_class;
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gobject_class = (GObjectClass *) klass;
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gstbasesrc_class = (GstBaseSrcClass *) klass;
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gstpush_src_class = (GstPushSrcClass *) klass;
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gobject_class->set_property = gst_tcp_client_src_set_property;
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gobject_class->get_property = gst_tcp_client_src_get_property;
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gobject_class->finalize = gst_tcp_client_src_finalize;
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g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_HOST,
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g_param_spec_string ("host", "Host",
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"The host IP address to receive packets from", TCP_DEFAULT_HOST,
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G_PARAM_READWRITE));
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g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_PORT,
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g_param_spec_int ("port", "Port", "The port to receive packets from", 0,
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TCP_HIGHEST_PORT, TCP_DEFAULT_PORT, G_PARAM_READWRITE));
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g_object_class_install_property (gobject_class, PROP_PROTOCOL,
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g_param_spec_enum ("protocol", "Protocol", "The protocol to wrap data in",
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GST_TYPE_TCP_PROTOCOL, GST_TCP_PROTOCOL_NONE, G_PARAM_READWRITE));
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gstbasesrc_class->get_caps = gst_tcp_client_src_getcaps;
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gstbasesrc_class->start = gst_tcp_client_src_start;
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gstbasesrc_class->stop = gst_tcp_client_src_stop;
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gstbasesrc_class->unlock = gst_tcp_client_src_unlock;
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gstpush_src_class->create = gst_tcp_client_src_create;
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GST_DEBUG_CATEGORY_INIT (tcpclientsrc_debug, "tcpclientsrc", 0,
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"TCP Client Source");
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}
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static void
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gst_tcp_client_src_init (GstTCPClientSrc * this, GstTCPClientSrcClass * g_class)
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{
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this->port = TCP_DEFAULT_PORT;
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this->host = g_strdup (TCP_DEFAULT_HOST);
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this->sock_fd = -1;
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this->protocol = GST_TCP_PROTOCOL_NONE;
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this->caps = NULL;
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READ_SOCKET (this) = -1;
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WRITE_SOCKET (this) = -1;
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gst_base_src_set_live (GST_BASE_SRC (this), TRUE);
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GST_OBJECT_FLAG_UNSET (this, GST_TCP_CLIENT_SRC_OPEN);
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}
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static void
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gst_tcp_client_src_finalize (GObject * gobject)
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{
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GstTCPClientSrc *this = GST_TCP_CLIENT_SRC (gobject);
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g_free (this->host);
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}
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static GstCaps *
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gst_tcp_client_src_getcaps (GstBaseSrc * bsrc)
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{
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GstTCPClientSrc *src;
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GstCaps *caps = NULL;
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src = GST_TCP_CLIENT_SRC (bsrc);
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if (!GST_OBJECT_FLAG_IS_SET (src, GST_TCP_CLIENT_SRC_OPEN))
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caps = gst_caps_new_any ();
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else if (src->caps)
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caps = gst_caps_copy (src->caps);
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else
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caps = gst_caps_new_any ();
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GST_DEBUG_OBJECT (src, "returning caps %" GST_PTR_FORMAT, caps);
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g_assert (GST_IS_CAPS (caps));
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return caps;
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}
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static GstFlowReturn
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gst_tcp_client_src_create (GstPushSrc * psrc, GstBuffer ** outbuf)
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{
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GstTCPClientSrc *src;
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GstFlowReturn ret = GST_FLOW_OK;
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src = GST_TCP_CLIENT_SRC (psrc);
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if (!GST_OBJECT_FLAG_IS_SET (src, GST_TCP_CLIENT_SRC_OPEN))
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goto wrong_state;
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GST_LOG_OBJECT (src, "asked for a buffer");
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/* read the buffer header if we're using a protocol */
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switch (src->protocol) {
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case GST_TCP_PROTOCOL_NONE:
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ret = gst_tcp_read_buffer (GST_ELEMENT (src), src->sock_fd,
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READ_SOCKET (src), outbuf);
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break;
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case GST_TCP_PROTOCOL_GDP:
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/* get the caps if we're using GDP */
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if (!src->caps_received) {
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GstCaps *caps;
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GST_DEBUG_OBJECT (src, "getting caps through GDP");
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ret = gst_tcp_gdp_read_caps (GST_ELEMENT (src), src->sock_fd,
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READ_SOCKET (src), &caps);
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if (ret != GST_FLOW_OK)
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goto no_caps;
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src->caps_received = TRUE;
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src->caps = caps;
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}
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ret = gst_tcp_gdp_read_buffer (GST_ELEMENT (src), src->sock_fd,
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READ_SOCKET (src), outbuf);
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break;
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default:
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/* need to assert as buf == NULL */
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g_assert ("Unhandled protocol type");
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break;
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}
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if (ret == GST_FLOW_OK) {
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GST_LOG_OBJECT (src,
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"Returning buffer from _get of size %d, ts %"
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GST_TIME_FORMAT ", dur %" GST_TIME_FORMAT
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", offset %" G_GINT64_FORMAT ", offset_end %" G_GINT64_FORMAT,
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GST_BUFFER_SIZE (*outbuf),
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GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (*outbuf)),
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GST_TIME_ARGS (GST_BUFFER_DURATION (*outbuf)),
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GST_BUFFER_OFFSET (*outbuf), GST_BUFFER_OFFSET_END (*outbuf));
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gst_buffer_set_caps (*outbuf, src->caps);
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}
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return ret;
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wrong_state:
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{
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GST_DEBUG_OBJECT (src, "connection to closed, cannot read data");
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return GST_FLOW_WRONG_STATE;
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}
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no_caps:
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{
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GST_ELEMENT_ERROR (src, RESOURCE, READ, (NULL),
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("Could not read caps through GDP"));
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return ret;
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}
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}
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static void
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gst_tcp_client_src_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec)
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{
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GstTCPClientSrc *tcpclientsrc = GST_TCP_CLIENT_SRC (object);
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switch (prop_id) {
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case PROP_HOST:
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if (!g_value_get_string (value)) {
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g_warning ("host property cannot be NULL");
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break;
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}
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g_free (tcpclientsrc->host);
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tcpclientsrc->host = g_strdup (g_value_get_string (value));
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break;
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case PROP_PORT:
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tcpclientsrc->port = g_value_get_int (value);
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break;
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case PROP_PROTOCOL:
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tcpclientsrc->protocol = g_value_get_enum (value);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static void
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gst_tcp_client_src_get_property (GObject * object, guint prop_id,
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GValue * value, GParamSpec * pspec)
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{
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GstTCPClientSrc *tcpclientsrc = GST_TCP_CLIENT_SRC (object);
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switch (prop_id) {
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case PROP_HOST:
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g_value_set_string (value, tcpclientsrc->host);
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break;
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case PROP_PORT:
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g_value_set_int (value, tcpclientsrc->port);
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break;
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case PROP_PROTOCOL:
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g_value_set_enum (value, tcpclientsrc->protocol);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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/* create a socket for connecting to remote server */
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static gboolean
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gst_tcp_client_src_start (GstBaseSrc * bsrc)
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{
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int ret;
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gchar *ip;
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GstTCPClientSrc *src = GST_TCP_CLIENT_SRC (bsrc);
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/* create the control sockets before anything */
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if (socketpair (PF_UNIX, SOCK_STREAM, 0, CONTROL_SOCKETS (src)) < 0)
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goto socket_pair;
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fcntl (READ_SOCKET (src), F_SETFL, O_NONBLOCK);
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fcntl (WRITE_SOCKET (src), F_SETFL, O_NONBLOCK);
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/* create receiving client socket */
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GST_DEBUG_OBJECT (src, "opening receiving client socket to %s:%d",
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src->host, src->port);
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if ((src->sock_fd = socket (AF_INET, SOCK_STREAM, 0)) == -1)
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goto no_socket;
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GST_DEBUG_OBJECT (src, "opened receiving client socket with fd %d",
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src->sock_fd);
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GST_OBJECT_FLAG_SET (src, GST_TCP_CLIENT_SRC_OPEN);
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/* look up name if we need to */
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if (!(ip = gst_tcp_host_to_ip (GST_ELEMENT (src), src->host)))
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goto name_resolv;
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GST_DEBUG_OBJECT (src, "IP address for host %s is %s", src->host, ip);
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/* connect to server */
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memset (&src->server_sin, 0, sizeof (src->server_sin));
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src->server_sin.sin_family = AF_INET; /* network socket */
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src->server_sin.sin_port = htons (src->port); /* on port */
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src->server_sin.sin_addr.s_addr = inet_addr (ip); /* on host ip */
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g_free (ip);
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GST_DEBUG_OBJECT (src, "connecting to server");
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ret = connect (src->sock_fd, (struct sockaddr *) &src->server_sin,
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sizeof (src->server_sin));
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if (ret) {
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gst_tcp_client_src_stop (GST_BASE_SRC (src));
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switch (errno) {
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case ECONNREFUSED:
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GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ,
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(_("Connection to %s:%d refused."), src->host, src->port), (NULL));
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return FALSE;
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break;
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default:
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GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ, (NULL),
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("connect to %s:%d failed: %s", src->host, src->port,
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g_strerror (errno)));
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return FALSE;
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break;
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}
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}
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return TRUE;
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socket_pair:
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{
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GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ_WRITE, (NULL),
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GST_ERROR_SYSTEM);
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return FALSE;
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}
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no_socket:
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{
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GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ, (NULL), GST_ERROR_SYSTEM);
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return FALSE;
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}
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name_resolv:
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{
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gst_tcp_client_src_stop (GST_BASE_SRC (src));
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return FALSE;
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}
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}
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/* close the socket and associated resources
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* unset OPEN flag
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* used both to recover from errors and go to NULL state */
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static gboolean
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gst_tcp_client_src_stop (GstBaseSrc * bsrc)
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{
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GstTCPClientSrc *src;
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src = GST_TCP_CLIENT_SRC (bsrc);
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GST_DEBUG_OBJECT (src, "closing socket");
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if (src->sock_fd != -1) {
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close (src->sock_fd);
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src->sock_fd = -1;
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}
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src->caps_received = FALSE;
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if (src->caps) {
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gst_caps_unref (src->caps);
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src->caps = NULL;
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}
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GST_OBJECT_FLAG_UNSET (src, GST_TCP_CLIENT_SRC_OPEN);
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close (READ_SOCKET (src));
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close (WRITE_SOCKET (src));
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READ_SOCKET (src) = -1;
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WRITE_SOCKET (src) = -1;
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return TRUE;
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}
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/* will be called only between calls to start() and stop() */
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static gboolean
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gst_tcp_client_src_unlock (GstBaseSrc * bsrc)
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{
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GstTCPClientSrc *src = GST_TCP_CLIENT_SRC (bsrc);
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SEND_COMMAND (src, CONTROL_STOP);
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return TRUE;
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}
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