mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-11-08 18:39:54 +00:00
dd3a25b473
... to avoid race with wait which uses it with 'flushing' flag state semantics.
1489 lines
43 KiB
C
1489 lines
43 KiB
C
/* GStreamer
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* Copyright (C) 2018, Collabora Ltd.
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* Copyright (C) 2018, SK Telecom, Co., Ltd.
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* Author: Jeongseok Kim <jeongseok.kim@sk.com>
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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., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, 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 "gstsrtobject.h"
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#include <gio/gnetworking.h>
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#include <stdlib.h>
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GST_DEBUG_CATEGORY_EXTERN (gst_debug_srtobject);
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#define GST_CAT_DEFAULT gst_debug_srtobject
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enum
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{
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PROP_URI = 1,
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PROP_MODE,
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PROP_LOCALADDRESS,
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PROP_LOCALPORT,
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PROP_PASSPHRASE,
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PROP_PBKEYLEN,
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PROP_POLL_TIMEOUT,
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PROP_LATENCY,
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PROP_MSG_SIZE,
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PROP_STATS,
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PROP_LAST
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};
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typedef struct
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{
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SRTSOCKET sock;
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gint poll_id;
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GSocketAddress *sockaddr;
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gboolean sent_headers;
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} SRTCaller;
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static SRTCaller *
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srt_caller_new (void)
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{
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SRTCaller *caller = g_new0 (SRTCaller, 1);
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caller->sock = SRT_INVALID_SOCK;
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caller->poll_id = SRT_ERROR;
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caller->sent_headers = FALSE;
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return caller;
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}
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static void
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srt_caller_free (SRTCaller * caller)
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{
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g_return_if_fail (caller != NULL);
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g_clear_object (&caller->sockaddr);
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if (caller->sock != SRT_INVALID_SOCK) {
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srt_close (caller->sock);
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}
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if (caller->poll_id != SRT_ERROR) {
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srt_epoll_release (caller->poll_id);
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}
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g_free (caller);
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}
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static void
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srt_caller_invoke_removed_closure (SRTCaller * caller, GstSRTObject * srtobject)
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{
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GValue values[2] = { G_VALUE_INIT };
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if (srtobject->caller_removed_closure == NULL) {
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return;
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}
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g_value_init (&values[0], G_TYPE_INT);
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g_value_set_int (&values[0], caller->sock);
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g_value_init (&values[1], G_TYPE_SOCKET_ADDRESS);
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g_value_set_object (&values[1], caller->sockaddr);
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g_closure_invoke (srtobject->caller_removed_closure, NULL, 2, values, NULL);
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g_value_unset (&values[0]);
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g_value_unset (&values[1]);
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}
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struct srt_constant_params
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{
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const gchar *name;
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gint param;
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gint val;
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};
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static struct srt_constant_params srt_params[] = {
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{"SRTO_SNDSYN", SRTO_SNDSYN, 0}, /* 0: non-blocking */
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{"SRTO_RCVSYN", SRTO_RCVSYN, 0}, /* 0: non-blocking */
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{"SRTO_LINGER", SRTO_LINGER, 0},
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{"SRTO_TSBPMODE", SRTO_TSBPDMODE, 1}, /* Timestamp-based Packet Delivery mode must be enabled */
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{NULL, -1, -1},
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};
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static gint srt_init_refcount = 0;
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static gboolean
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gst_srt_object_set_common_params (SRTSOCKET sock, GstSRTObject * srtobject,
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GError ** error)
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{
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struct srt_constant_params *params = srt_params;
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for (; params->name != NULL; params++) {
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if (srt_setsockopt (sock, 0, params->param, ¶ms->val, sizeof (gint))) {
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g_set_error (error, GST_LIBRARY_ERROR, GST_LIBRARY_ERROR_SETTINGS,
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"failed to set %s (reason: %s)", params->name,
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srt_getlasterror_str ());
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return FALSE;
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}
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}
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if (srtobject->passphrase != NULL && srtobject->passphrase[0] != '\0') {
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gint pbkeylen;
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if (srt_setsockopt (sock, 0, SRTO_PASSPHRASE, srtobject->passphrase,
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strlen (srtobject->passphrase))) {
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g_set_error (error, GST_LIBRARY_ERROR, GST_LIBRARY_ERROR_SETTINGS,
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"failed to set passphrase (reason: %s)", srt_getlasterror_str ());
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return FALSE;
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}
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if (!gst_structure_get_int (srtobject->parameters, "pbkeylen", &pbkeylen)) {
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pbkeylen = GST_SRT_DEFAULT_PBKEYLEN;
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}
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if (srt_setsockopt (sock, 0, SRTO_PBKEYLEN, &pbkeylen, sizeof (int))) {
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g_set_error (error, GST_LIBRARY_ERROR, GST_LIBRARY_ERROR_SETTINGS,
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"failed to set pbkeylen (reason: %s)", srt_getlasterror_str ());
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return FALSE;
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}
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}
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return TRUE;
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}
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GstSRTObject *
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gst_srt_object_new (GstElement * element)
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{
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GstSRTObject *srtobject;
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if (g_atomic_int_get (&srt_init_refcount) == 0) {
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GST_DEBUG_OBJECT (element, "Starting up SRT");
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if (srt_startup () != 0) {
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g_warning ("Failed to initialize SRT (reason: %s)",
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srt_getlasterror_str ());
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}
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}
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g_atomic_int_inc (&srt_init_refcount);
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srtobject = g_new0 (GstSRTObject, 1);
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srtobject->element = element;
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srtobject->parameters = gst_structure_new ("application/x-srt-params",
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"poll-timeout", G_TYPE_INT, GST_SRT_DEFAULT_POLL_TIMEOUT,
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"latency", G_TYPE_INT, GST_SRT_DEFAULT_LATENCY,
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"mode", GST_TYPE_SRT_CONNECTION_MODE, GST_SRT_DEFAULT_MODE, NULL);
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srtobject->sock = SRT_INVALID_SOCK;
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srtobject->poll_id = srt_epoll_create ();
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srtobject->listener_sock = SRT_INVALID_SOCK;
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srtobject->listener_poll_id = SRT_ERROR;
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srtobject->sent_headers = FALSE;
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g_cond_init (&srtobject->sock_cond);
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return srtobject;
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}
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void
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gst_srt_object_destroy (GstSRTObject * srtobject)
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{
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g_return_if_fail (srtobject != NULL);
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if (srtobject->poll_id != SRT_ERROR) {
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srt_epoll_release (srtobject->poll_id);
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srtobject->poll_id = SRT_ERROR;
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}
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g_cond_clear (&srtobject->sock_cond);
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GST_DEBUG_OBJECT (srtobject->element, "Destroying srtobject");
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gst_structure_free (srtobject->parameters);
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g_free (srtobject->passphrase);
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if (g_atomic_int_dec_and_test (&srt_init_refcount)) {
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srt_cleanup ();
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GST_DEBUG_OBJECT (srtobject->element, "Cleaning up SRT");
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}
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g_clear_pointer (&srtobject->uri, gst_uri_unref);
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g_free (srtobject);
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}
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gboolean
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gst_srt_object_set_property_helper (GstSRTObject * srtobject,
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guint prop_id, const GValue * value, GParamSpec * pspec)
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{
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switch (prop_id) {
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case PROP_URI:{
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const gchar *uri = g_value_get_string (value);
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gst_srt_object_set_uri (srtobject, uri, NULL);
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break;
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}
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case PROP_MODE:
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gst_structure_set_value (srtobject->parameters, "mode", value);
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break;
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case PROP_POLL_TIMEOUT:
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gst_structure_set_value (srtobject->parameters, "poll-timeout", value);
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break;
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case PROP_LATENCY:
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gst_structure_set_value (srtobject->parameters, "latency", value);
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break;
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case PROP_MSG_SIZE:
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gst_structure_set_value (srtobject->parameters, "msg-size", value);
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break;
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case PROP_LOCALADDRESS:
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gst_structure_set_value (srtobject->parameters, "localaddress", value);
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break;
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case PROP_LOCALPORT:
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gst_structure_set_value (srtobject->parameters, "localport", value);
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break;
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case PROP_PASSPHRASE:
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g_free (srtobject->passphrase);
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srtobject->passphrase = g_value_dup_string (value);
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break;
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case PROP_PBKEYLEN:
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gst_structure_set_value (srtobject->parameters, "pbkeylen", value);
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break;
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default:
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return FALSE;
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}
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return TRUE;
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}
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gboolean
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gst_srt_object_get_property_helper (GstSRTObject * srtobject,
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guint prop_id, GValue * value, GParamSpec * pspec)
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{
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switch (prop_id) {
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case PROP_URI:
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g_value_take_string (value, gst_uri_to_string (srtobject->uri));
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break;
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case PROP_MODE:{
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GstSRTConnectionMode v;
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if (!gst_structure_get_enum (srtobject->parameters, "mode",
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GST_TYPE_SRT_CONNECTION_MODE, (gint *) & v)) {
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GST_WARNING_OBJECT (srtobject->element, "Failed to get 'mode'");
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v = GST_SRT_CONNECTION_MODE_NONE;
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}
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g_value_set_enum (value, v);
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break;
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}
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case PROP_LOCALADDRESS:
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g_value_set_string (value,
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gst_structure_get_string (srtobject->parameters, "localaddress"));
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break;
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case PROP_LOCALPORT:{
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guint v;
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if (!gst_structure_get_uint (srtobject->parameters, "localport", &v)) {
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GST_WARNING_OBJECT (srtobject->element, "Failed to get 'localport'");
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v = GST_SRT_DEFAULT_PORT;
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}
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g_value_set_uint (value, v);
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break;
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}
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case PROP_PBKEYLEN:{
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GstSRTKeyLength v;
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if (!gst_structure_get_enum (srtobject->parameters, "pbkeylen",
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GST_TYPE_SRT_KEY_LENGTH, (gint *) & v)) {
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GST_WARNING_OBJECT (srtobject->element, "Failed to get 'pbkeylen'");
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v = GST_SRT_KEY_LENGTH_NO_KEY;
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}
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g_value_set_enum (value, v);
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break;
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}
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case PROP_POLL_TIMEOUT:{
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gint v;
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if (!gst_structure_get_int (srtobject->parameters, "poll-timeout", &v)) {
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GST_WARNING_OBJECT (srtobject->element, "Failed to get 'poll-timeout'");
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v = GST_SRT_DEFAULT_POLL_TIMEOUT;
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}
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g_value_set_int (value, v);
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break;
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}
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case PROP_LATENCY:{
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gint v;
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if (!gst_structure_get_int (srtobject->parameters, "latency", &v)) {
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GST_WARNING_OBJECT (srtobject->element, "Failed to get 'latency'");
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v = GST_SRT_DEFAULT_LATENCY;
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}
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g_value_set_int (value, v);
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break;
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}
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case PROP_MSG_SIZE:{
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gint v;
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if (!gst_structure_get_int (srtobject->parameters, "msg-size", &v)) {
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GST_WARNING_OBJECT (srtobject->element, "Failed to get 'msg-size'");
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v = GST_SRT_DEFAULT_MSG_SIZE;
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}
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g_value_set_int (value, v);
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break;
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}
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case PROP_STATS:
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g_value_take_boxed (value, gst_srt_object_get_stats (srtobject));
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break;
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default:
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return FALSE;
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}
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return TRUE;
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}
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void
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gst_srt_object_install_properties_helper (GObjectClass * gobject_class)
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{
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/**
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* GstSRTSrc:uri:
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*
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* The URI used by SRT connection. User can specify SRT specific options by URI parameters.
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* Refer to <a href="https://github.com/Haivision/srt/blob/master/docs/stransmit.md#medium-srt">Mediun: SRT</a>
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*/
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g_object_class_install_property (gobject_class, PROP_URI,
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g_param_spec_string ("uri", "URI",
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"URI in the form of srt://address:port", GST_SRT_DEFAULT_URI,
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G_PARAM_READWRITE | GST_PARAM_MUTABLE_READY |
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G_PARAM_STATIC_STRINGS));
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/**
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* GstSRTSrc:mode:
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*
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* The SRT connection mode.
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* This property can be set by URI parameters.
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*/
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g_object_class_install_property (gobject_class, PROP_MODE,
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g_param_spec_enum ("mode", "Connection mode",
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"SRT connection mode", GST_TYPE_SRT_CONNECTION_MODE,
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GST_SRT_CONNECTION_MODE_CALLER,
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G_PARAM_READWRITE | GST_PARAM_MUTABLE_READY |
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G_PARAM_STATIC_STRINGS));
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/**
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* GstSRTSrc:localaddress:
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*
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* The address to bind when #GstSRTSrc:mode is listener or rendezvous.
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* This property can be set by URI parameters.
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*/
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g_object_class_install_property (gobject_class, PROP_LOCALADDRESS,
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g_param_spec_string ("localaddress", "Local address",
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"Local address to bind", GST_SRT_DEFAULT_LOCALADDRESS,
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G_PARAM_READWRITE | GST_PARAM_MUTABLE_READY |
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G_PARAM_STATIC_STRINGS));
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/**
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* GstSRTSrc:localport:
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*
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* The local port to bind when #GstSRTSrc:mode is listener or rendezvous.
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* This property can be set by URI parameters.
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*/
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g_object_class_install_property (gobject_class, PROP_LOCALPORT,
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g_param_spec_uint ("localport", "Local port",
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"Local port to bind", 0,
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65535, GST_SRT_DEFAULT_PORT,
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G_PARAM_READWRITE | GST_PARAM_MUTABLE_READY |
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G_PARAM_STATIC_STRINGS));
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/**
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* GstSRTSrc:passphrase:
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*
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* The password for the encrypted transmission.
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* This property can be set by URI parameters.
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*/
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g_object_class_install_property (gobject_class, PROP_PASSPHRASE,
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g_param_spec_string ("passphrase", "Passphrase",
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"Password for the encrypted transmission", "",
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G_PARAM_WRITABLE | GST_PARAM_MUTABLE_READY | G_PARAM_STATIC_STRINGS));
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|
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/**
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* GstSRTSrc:pbkeylen:
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*
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* The crypto key length.
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* This property can be set by URI parameters.
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*/
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g_object_class_install_property (gobject_class, PROP_PBKEYLEN,
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g_param_spec_enum ("pbkeylen", "Crypto key length",
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"Crypto key length in bytes", GST_TYPE_SRT_KEY_LENGTH,
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GST_SRT_DEFAULT_PBKEYLEN,
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G_PARAM_READWRITE | GST_PARAM_MUTABLE_READY |
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G_PARAM_STATIC_STRINGS));
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/**
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* GstSRTSrc:poll-timeout:
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*
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* The polling timeout used when srt poll is started.
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* Even if the default value indicates infinite waiting, it can be cancellable according to #GstState
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* This property can be set by URI parameters.
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*/
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g_object_class_install_property (gobject_class, PROP_POLL_TIMEOUT,
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g_param_spec_int ("poll-timeout", "Poll timeout",
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"Return poll wait after timeout miliseconds (-1 = infinite)", -1,
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G_MAXINT32, GST_SRT_DEFAULT_POLL_TIMEOUT,
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G_PARAM_READWRITE | GST_PARAM_MUTABLE_READY |
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G_PARAM_STATIC_STRINGS));
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|
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/**
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* GstSRTSrc:latency:
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*
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* The maximum accepted transmission latency.
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*/
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g_object_class_install_property (gobject_class, PROP_LATENCY,
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g_param_spec_int ("latency", "latency",
|
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"Minimum latency (milliseconds)", 0,
|
|
G_MAXINT32, GST_SRT_DEFAULT_LATENCY,
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G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
|
|
|
|
/**
|
|
* GstSRTSrc:msg-size:
|
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*
|
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* The message size of buffer.
|
|
*/
|
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g_object_class_install_property (gobject_class, PROP_MSG_SIZE,
|
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g_param_spec_int ("msg-size", "message size",
|
|
"Message size to use with SRT", 1,
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G_MAXINT32, GST_SRT_DEFAULT_MSG_SIZE,
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G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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|
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/**
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* GstSRTSrc:stats:
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*
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* The statistics from SRT.
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*/
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g_object_class_install_property (gobject_class, PROP_STATS,
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g_param_spec_boxed ("stats", "Statistics",
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"SRT Statistics", GST_TYPE_STRUCTURE,
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G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
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}
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|
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static void
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|
gst_srt_object_set_enum_value (GstStructure * s, GType enum_type,
|
|
gconstpointer key, gconstpointer value)
|
|
{
|
|
GEnumClass *enum_class;
|
|
GEnumValue *enum_value;
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|
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enum_class = g_type_class_ref (enum_type);
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enum_value = g_enum_get_value_by_nick (enum_class, value);
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|
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if (enum_value) {
|
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GValue v = G_VALUE_INIT;
|
|
g_value_init (&v, enum_type);
|
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g_value_set_enum (&v, enum_value->value);
|
|
gst_structure_set_value (s, key, &v);
|
|
}
|
|
|
|
g_type_class_unref (enum_class);
|
|
}
|
|
|
|
static void
|
|
gst_srt_object_set_string_value (GstStructure * s, const gchar * key,
|
|
const gchar * value)
|
|
{
|
|
GValue v = G_VALUE_INIT;
|
|
g_value_init (&v, G_TYPE_STRING);
|
|
g_value_set_static_string (&v, value);
|
|
gst_structure_set_value (s, key, &v);
|
|
g_value_unset (&v);
|
|
}
|
|
|
|
static void
|
|
gst_srt_object_set_uint_value (GstStructure * s, const gchar * key,
|
|
const gchar * value)
|
|
{
|
|
GValue v = G_VALUE_INIT;
|
|
g_value_init (&v, G_TYPE_UINT);
|
|
g_value_set_uint (&v, (guint) strtoul (value, NULL, 10));
|
|
gst_structure_set_value (s, key, &v);
|
|
g_value_unset (&v);
|
|
}
|
|
|
|
static void
|
|
gst_srt_object_validate_parameters (GstStructure * s, GstUri * uri)
|
|
{
|
|
GstSRTConnectionMode connection_mode = GST_SRT_CONNECTION_MODE_NONE;
|
|
|
|
gst_structure_get_enum (s, "mode", GST_TYPE_SRT_CONNECTION_MODE,
|
|
(gint *) & connection_mode);
|
|
|
|
if (connection_mode == GST_SRT_CONNECTION_MODE_RENDEZVOUS ||
|
|
connection_mode == GST_SRT_CONNECTION_MODE_LISTENER) {
|
|
guint local_port;
|
|
const gchar *local_address = gst_structure_get_string (s, "localaddress");
|
|
|
|
if (local_address == NULL) {
|
|
local_address =
|
|
gst_uri_get_host (uri) ==
|
|
NULL ? GST_SRT_DEFAULT_LOCALADDRESS : gst_uri_get_host (uri);
|
|
gst_srt_object_set_string_value (s, "localaddress", local_address);
|
|
}
|
|
|
|
if (!gst_structure_get_uint (s, "localport", &local_port)) {
|
|
local_port =
|
|
gst_uri_get_port (uri) ==
|
|
GST_URI_NO_PORT ? GST_SRT_DEFAULT_PORT : gst_uri_get_port (uri);
|
|
gst_structure_set (s, "localport", G_TYPE_UINT, local_port, NULL);
|
|
}
|
|
}
|
|
}
|
|
|
|
gboolean
|
|
gst_srt_object_set_uri (GstSRTObject * srtobject, const gchar * uri,
|
|
GError ** err)
|
|
{
|
|
GHashTable *query_table = NULL;
|
|
GHashTableIter iter;
|
|
gpointer key, value;
|
|
const char *addr_str;
|
|
|
|
if (srtobject->opened) {
|
|
g_warning
|
|
("It's not supported to change the 'uri' property when SRT socket is opened.");
|
|
g_set_error (err, GST_URI_ERROR, GST_URI_ERROR_BAD_STATE,
|
|
"It's not supported to change the 'uri' property when SRT socket is opened");
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
if (!g_str_has_prefix (uri, GST_SRT_DEFAULT_URI_SCHEME)) {
|
|
g_warning ("Given uri cannot be used for SRT connection.");
|
|
g_set_error (err, GST_URI_ERROR, GST_URI_ERROR_BAD_URI,
|
|
"Invalid SRT URI scheme");
|
|
return FALSE;
|
|
}
|
|
|
|
g_clear_pointer (&srtobject->uri, gst_uri_unref);
|
|
srtobject->uri = gst_uri_from_string (uri);
|
|
|
|
query_table = gst_uri_get_query_table (srtobject->uri);
|
|
|
|
GST_DEBUG_OBJECT (srtobject->element,
|
|
"set uri to (host: %s, port: %d) with %d query strings",
|
|
gst_uri_get_host (srtobject->uri), gst_uri_get_port (srtobject->uri),
|
|
query_table == NULL ? 0 : g_hash_table_size (query_table));
|
|
|
|
addr_str = gst_uri_get_host (srtobject->uri);
|
|
if (addr_str)
|
|
gst_srt_object_set_enum_value (srtobject->parameters,
|
|
GST_TYPE_SRT_CONNECTION_MODE, "mode", "caller");
|
|
else
|
|
gst_srt_object_set_enum_value (srtobject->parameters,
|
|
GST_TYPE_SRT_CONNECTION_MODE, "mode", "listener");
|
|
|
|
if (query_table) {
|
|
g_hash_table_iter_init (&iter, query_table);
|
|
while (g_hash_table_iter_next (&iter, &key, &value)) {
|
|
if (!g_strcmp0 ("mode", key)) {
|
|
gst_srt_object_set_enum_value (srtobject->parameters,
|
|
GST_TYPE_SRT_CONNECTION_MODE, key, value);
|
|
} else if (!g_strcmp0 ("localaddress", key)) {
|
|
gst_srt_object_set_string_value (srtobject->parameters, key, value);
|
|
} else if (!g_strcmp0 ("localport", key)) {
|
|
gst_srt_object_set_uint_value (srtobject->parameters, key, value);
|
|
} else if (!g_strcmp0 ("passphrase", key)) {
|
|
g_free (srtobject->passphrase);
|
|
srtobject->passphrase = g_strdup (value);
|
|
} else if (!g_strcmp0 ("pbkeylen", key)) {
|
|
gst_srt_object_set_enum_value (srtobject->parameters,
|
|
GST_TYPE_SRT_KEY_LENGTH, key, value);
|
|
}
|
|
}
|
|
|
|
g_hash_table_unref (query_table);
|
|
}
|
|
|
|
gst_srt_object_validate_parameters (srtobject->parameters, srtobject->uri);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static gpointer
|
|
thread_func (gpointer data)
|
|
{
|
|
GstSRTObject *srtobject = data;
|
|
|
|
g_main_loop_run (srtobject->loop);
|
|
|
|
return NULL;
|
|
}
|
|
|
|
static gboolean
|
|
idle_listen_source_cb (gpointer data)
|
|
{
|
|
GstSRTObject *srtobject = data;
|
|
SRTSOCKET caller_sock;
|
|
struct sockaddr caller_sa;
|
|
gsize caller_sa_len;
|
|
|
|
gint poll_timeout;
|
|
|
|
SRTSOCKET rsock;
|
|
gint rsocklen = 1;
|
|
|
|
if (!gst_structure_get_int (srtobject->parameters, "poll-timeout",
|
|
&poll_timeout)) {
|
|
poll_timeout = GST_SRT_DEFAULT_POLL_TIMEOUT;
|
|
}
|
|
|
|
GST_DEBUG_OBJECT (srtobject->element, "Waiting a request from caller");
|
|
|
|
if (srt_epoll_wait (srtobject->listener_poll_id, &rsock,
|
|
&rsocklen, 0, 0, poll_timeout, NULL, 0, NULL, 0) < 0) {
|
|
gint srt_errno = srt_getlasterror (NULL);
|
|
|
|
if (srt_errno == SRT_ETIMEOUT) {
|
|
return TRUE;
|
|
} else {
|
|
GST_ELEMENT_ERROR (srtobject->element, RESOURCE, FAILED,
|
|
("abort polling: %s", srt_getlasterror_str ()), (NULL));
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
caller_sock =
|
|
srt_accept (srtobject->listener_sock, &caller_sa, (int *) &caller_sa_len);
|
|
|
|
if (caller_sock != SRT_INVALID_SOCK) {
|
|
SRTCaller *caller;
|
|
gint flag = SRT_EPOLL_ERR;
|
|
|
|
caller = srt_caller_new ();
|
|
caller->sockaddr =
|
|
g_socket_address_new_from_native (&caller_sa, caller_sa_len);
|
|
caller->poll_id = srt_epoll_create ();
|
|
caller->sock = caller_sock;
|
|
|
|
if (gst_uri_handler_get_uri_type (GST_URI_HANDLER
|
|
(srtobject->element)) == GST_URI_SRC) {
|
|
flag |= SRT_EPOLL_IN;
|
|
} else {
|
|
flag |= SRT_EPOLL_OUT;
|
|
}
|
|
|
|
if (srt_epoll_add_usock (caller->poll_id, caller_sock, &flag)) {
|
|
|
|
GST_ELEMENT_ERROR (srtobject->element, RESOURCE, SETTINGS,
|
|
("%s", srt_getlasterror_str ()), (NULL));
|
|
|
|
srt_caller_free (caller);
|
|
|
|
/* try-again */
|
|
return TRUE;
|
|
}
|
|
|
|
GST_OBJECT_LOCK (srtobject->element);
|
|
srtobject->callers = g_list_append (srtobject->callers, caller);
|
|
g_cond_signal (&srtobject->sock_cond);
|
|
GST_OBJECT_UNLOCK (srtobject->element);
|
|
|
|
/* notifying caller-added */
|
|
if (srtobject->caller_added_closure != NULL) {
|
|
GValue values[2] = { G_VALUE_INIT, G_VALUE_INIT };
|
|
|
|
g_value_init (&values[0], G_TYPE_INT);
|
|
g_value_set_int (&values[0], caller->sock);
|
|
|
|
g_value_init (&values[1], G_TYPE_SOCKET_ADDRESS);
|
|
g_value_set_object (&values[1], caller->sockaddr);
|
|
|
|
g_closure_invoke (srtobject->caller_added_closure, NULL, 2, values, NULL);
|
|
|
|
g_value_unset (&values[1]);
|
|
}
|
|
|
|
GST_DEBUG_OBJECT (srtobject->element, "Accept to connect");
|
|
}
|
|
|
|
/* only one caller is allowed if the element is source. */
|
|
return gst_uri_handler_get_uri_type (GST_URI_HANDLER (srtobject->element)) !=
|
|
GST_URI_SRC;
|
|
}
|
|
|
|
static gboolean
|
|
gst_srt_object_wait_connect (GstSRTObject * srtobject,
|
|
GCancellable * cancellable, gpointer sa, size_t sa_len, GError ** error)
|
|
{
|
|
SRTSOCKET sock = SRT_INVALID_SOCK;
|
|
const gchar *local_address = NULL;
|
|
guint local_port = 0;
|
|
gint sock_flags = SRT_EPOLL_ERR | SRT_EPOLL_IN;
|
|
|
|
gpointer bind_sa;
|
|
gsize bind_sa_len;
|
|
GSocketAddress *bind_addr;
|
|
|
|
gst_structure_get_uint (srtobject->parameters, "localport", &local_port);
|
|
|
|
local_address =
|
|
gst_structure_get_string (srtobject->parameters, "localaddress");
|
|
|
|
bind_addr = g_inet_socket_address_new_from_string (local_address, local_port);
|
|
bind_sa_len = g_socket_address_get_native_size (bind_addr);
|
|
bind_sa = g_alloca (bind_sa_len);
|
|
|
|
if (!g_socket_address_to_native (bind_addr, bind_sa, bind_sa_len, error)) {
|
|
goto failed;
|
|
}
|
|
|
|
g_clear_object (&bind_addr);
|
|
|
|
sock = srt_socket (AF_INET, SOCK_DGRAM, 0);
|
|
if (sock == SRT_INVALID_SOCK) {
|
|
g_set_error (error, GST_LIBRARY_ERROR, GST_LIBRARY_ERROR_INIT, "%s",
|
|
srt_getlasterror_str ());
|
|
goto failed;
|
|
}
|
|
|
|
if (!gst_srt_object_set_common_params (sock, srtobject, error)) {
|
|
goto failed;
|
|
}
|
|
|
|
GST_DEBUG_OBJECT (srtobject->element, "Binding to %s (port: %d)",
|
|
local_address, local_port);
|
|
|
|
if (srt_bind (sock, bind_sa, bind_sa_len) == SRT_ERROR) {
|
|
g_set_error (error, GST_RESOURCE_ERROR,
|
|
GST_RESOURCE_ERROR_OPEN_READ_WRITE, "Cannot bind to %s:%d - %s",
|
|
local_address, local_port, srt_getlasterror_str ());
|
|
goto failed;
|
|
}
|
|
|
|
if (srt_epoll_add_usock (srtobject->listener_poll_id, sock, &sock_flags)) {
|
|
g_set_error (error, GST_LIBRARY_ERROR, GST_LIBRARY_ERROR_SETTINGS, "%s",
|
|
srt_getlasterror_str ());
|
|
goto failed;
|
|
}
|
|
|
|
GST_DEBUG_OBJECT (srtobject->element, "Starting to listen on bind socket");
|
|
if (srt_listen (sock, 1) == SRT_ERROR) {
|
|
g_set_error (error, GST_RESOURCE_ERROR,
|
|
GST_RESOURCE_ERROR_OPEN_READ_WRITE, "Cannot listen on bind socket: %s",
|
|
srt_getlasterror_str ());
|
|
|
|
goto failed;
|
|
}
|
|
|
|
srtobject->listener_sock = sock;
|
|
|
|
srtobject->context = g_main_context_new ();
|
|
srtobject->loop = g_main_loop_new (srtobject->context, TRUE);
|
|
|
|
srtobject->listener_source = g_idle_source_new ();
|
|
g_source_set_callback (srtobject->listener_source,
|
|
(GSourceFunc) idle_listen_source_cb, srtobject, NULL);
|
|
|
|
g_source_attach (srtobject->listener_source, srtobject->context);
|
|
|
|
srtobject->thread =
|
|
g_thread_try_new ("GstSRTObjectListener", thread_func, srtobject, error);
|
|
|
|
if (*error != NULL) {
|
|
goto failed;
|
|
}
|
|
|
|
return TRUE;
|
|
|
|
failed:
|
|
|
|
g_clear_pointer (&srtobject->loop, g_main_loop_unref);
|
|
g_clear_pointer (&srtobject->context, g_main_context_unref);
|
|
|
|
if (srtobject->listener_poll_id != SRT_ERROR) {
|
|
srt_epoll_release (srtobject->listener_poll_id);
|
|
}
|
|
|
|
if (sock != SRT_INVALID_SOCK) {
|
|
srt_close (sock);
|
|
}
|
|
|
|
g_clear_object (&bind_addr);
|
|
|
|
srtobject->listener_poll_id = SRT_ERROR;
|
|
srtobject->listener_sock = SRT_INVALID_SOCK;
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
static gboolean
|
|
gst_srt_object_connect (GstSRTObject * srtobject,
|
|
GstSRTConnectionMode connection_mode, gpointer sa, size_t sa_len,
|
|
GError ** error)
|
|
{
|
|
SRTSOCKET sock;
|
|
gint option_val = -1;
|
|
gint sock_flags = SRT_EPOLL_ERR;
|
|
guint local_port = 0;
|
|
const gchar *local_address = NULL;
|
|
|
|
sock = srt_socket (AF_INET, SOCK_DGRAM, 0);
|
|
if (sock == SRT_INVALID_SOCK) {
|
|
g_set_error (error, GST_LIBRARY_ERROR, GST_LIBRARY_ERROR_INIT, "%s",
|
|
srt_getlasterror_str ());
|
|
goto failed;
|
|
}
|
|
|
|
if (!gst_srt_object_set_common_params (sock, srtobject, error)) {
|
|
goto failed;
|
|
}
|
|
|
|
switch (gst_uri_handler_get_uri_type (GST_URI_HANDLER (srtobject->element))) {
|
|
case GST_URI_SRC:
|
|
option_val = 0;
|
|
sock_flags |= SRT_EPOLL_IN;
|
|
break;
|
|
case GST_URI_SINK:
|
|
option_val = 1;
|
|
sock_flags |= SRT_EPOLL_OUT;
|
|
break;
|
|
default:
|
|
g_set_error (error, GST_LIBRARY_ERROR, GST_LIBRARY_ERROR_SETTINGS,
|
|
"Cannot determine stream direction");
|
|
goto failed;
|
|
}
|
|
|
|
if (srt_setsockopt (sock, 0, SRTO_SENDER, &option_val, sizeof (gint))) {
|
|
g_set_error (error, GST_LIBRARY_ERROR, GST_LIBRARY_ERROR_SETTINGS, "%s",
|
|
srt_getlasterror_str ());
|
|
goto failed;
|
|
}
|
|
|
|
option_val = (connection_mode == GST_SRT_CONNECTION_MODE_RENDEZVOUS);
|
|
if (srt_setsockopt (sock, 0, SRTO_RENDEZVOUS, &option_val, sizeof (gint))) {
|
|
g_set_error (error, GST_LIBRARY_ERROR, GST_LIBRARY_ERROR_SETTINGS, "%s",
|
|
srt_getlasterror_str ());
|
|
goto failed;
|
|
}
|
|
|
|
gst_structure_get_uint (srtobject->parameters, "localport", &local_port);
|
|
local_address =
|
|
gst_structure_get_string (srtobject->parameters, "localaddress");
|
|
/* According to SRT norm, bind local address and port if specified */
|
|
if (local_address != NULL && local_port != 0) {
|
|
gpointer bind_sa;
|
|
gsize bind_sa_len;
|
|
|
|
GSocketAddress *bind_addr =
|
|
g_inet_socket_address_new_from_string (local_address,
|
|
local_port);
|
|
|
|
bind_sa_len = g_socket_address_get_native_size (bind_addr);
|
|
bind_sa = g_alloca (bind_sa_len);
|
|
|
|
if (!g_socket_address_to_native (bind_addr, bind_sa, bind_sa_len, error)) {
|
|
g_clear_object (&bind_addr);
|
|
goto failed;
|
|
}
|
|
|
|
g_clear_object (&bind_addr);
|
|
|
|
GST_DEBUG_OBJECT (srtobject->element, "Binding to %s (port: %d)",
|
|
local_address, local_port);
|
|
|
|
if (srt_bind (sock, bind_sa, bind_sa_len) == SRT_ERROR) {
|
|
g_set_error (error, GST_RESOURCE_ERROR,
|
|
GST_RESOURCE_ERROR_OPEN_READ_WRITE, "Cannot bind to %s:%d - %s",
|
|
local_address, local_port, srt_getlasterror_str ());
|
|
goto failed;
|
|
}
|
|
}
|
|
|
|
if (srt_epoll_add_usock (srtobject->poll_id, sock, &sock_flags)) {
|
|
g_set_error (error, GST_LIBRARY_ERROR, GST_LIBRARY_ERROR_SETTINGS, "%s",
|
|
srt_getlasterror_str ());
|
|
goto failed;
|
|
}
|
|
|
|
if (srt_connect (sock, sa, sa_len) == SRT_ERROR) {
|
|
g_set_error (error, GST_RESOURCE_ERROR, GST_RESOURCE_ERROR_OPEN_READ, "%s",
|
|
srt_getlasterror_str ());
|
|
goto failed;
|
|
}
|
|
|
|
srtobject->sock = sock;
|
|
|
|
return TRUE;
|
|
|
|
failed:
|
|
|
|
if (srtobject->poll_id != SRT_ERROR) {
|
|
srt_epoll_release (srtobject->poll_id);
|
|
}
|
|
|
|
if (sock != SRT_INVALID_SOCK) {
|
|
srt_close (sock);
|
|
}
|
|
|
|
srtobject->poll_id = SRT_ERROR;
|
|
srtobject->sock = SRT_INVALID_SOCK;
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
static gboolean
|
|
gst_srt_object_open_connection (GstSRTObject * srtobject,
|
|
GCancellable * cancellable, GstSRTConnectionMode connection_mode,
|
|
gpointer sa, size_t sa_len, GError ** error)
|
|
{
|
|
gboolean ret = FALSE;
|
|
|
|
if (connection_mode == GST_SRT_CONNECTION_MODE_LISTENER) {
|
|
ret =
|
|
gst_srt_object_wait_connect (srtobject, cancellable, sa, sa_len, error);
|
|
} else {
|
|
ret =
|
|
gst_srt_object_connect (srtobject, connection_mode, sa, sa_len, error);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
gboolean
|
|
gst_srt_object_open (GstSRTObject * srtobject, GCancellable * cancellable,
|
|
GError ** error)
|
|
{
|
|
return gst_srt_object_open_full (srtobject, NULL, NULL, cancellable, error);
|
|
}
|
|
|
|
gboolean
|
|
gst_srt_object_open_full (GstSRTObject * srtobject,
|
|
GstSRTObjectCallerAdded caller_added_func,
|
|
GstSRTObjectCallerRemoved caller_removed_func,
|
|
GCancellable * cancellable, GError ** error)
|
|
{
|
|
GSocketAddress *socket_address = NULL;
|
|
GstSRTConnectionMode connection_mode = GST_SRT_CONNECTION_MODE_NONE;
|
|
|
|
gpointer sa;
|
|
size_t sa_len;
|
|
const gchar *addr_str;
|
|
|
|
srtobject->opened = FALSE;
|
|
|
|
if (caller_added_func != NULL) {
|
|
srtobject->caller_added_closure =
|
|
g_cclosure_new (G_CALLBACK (caller_added_func), srtobject, NULL);
|
|
g_closure_set_marshal (srtobject->caller_added_closure,
|
|
g_cclosure_marshal_generic);
|
|
}
|
|
|
|
if (caller_removed_func != NULL) {
|
|
srtobject->caller_removed_closure =
|
|
g_cclosure_new (G_CALLBACK (caller_removed_func), srtobject, NULL);
|
|
g_closure_set_marshal (srtobject->caller_removed_closure,
|
|
g_cclosure_marshal_generic);
|
|
}
|
|
|
|
addr_str = gst_uri_get_host (srtobject->uri);
|
|
|
|
if (addr_str == NULL) {
|
|
addr_str = "0.0.0.0";
|
|
GST_DEBUG_OBJECT (srtobject->element,
|
|
"Given uri doesn't have hostname or address. Use any (%s) and"
|
|
" setting listener mode", addr_str);
|
|
}
|
|
|
|
socket_address =
|
|
g_inet_socket_address_new_from_string (addr_str,
|
|
gst_uri_get_port (srtobject->uri));
|
|
|
|
if (socket_address == NULL) {
|
|
g_set_error (error, GST_RESOURCE_ERROR, GST_RESOURCE_ERROR_OPEN_READ,
|
|
"Invalid host");
|
|
goto out;
|
|
}
|
|
|
|
/* FIXME: Unfortunately, SRT doesn't support IPv4 currently. */
|
|
if (g_socket_address_get_family (socket_address) != G_SOCKET_FAMILY_IPV4) {
|
|
g_set_error (error, GST_RESOURCE_ERROR, GST_RESOURCE_ERROR_OPEN_READ,
|
|
"SRT supports IPv4 only");
|
|
goto out;
|
|
}
|
|
|
|
sa_len = g_socket_address_get_native_size (socket_address);
|
|
sa = g_alloca (sa_len);
|
|
|
|
if (!g_socket_address_to_native (socket_address, sa, sa_len, error)) {
|
|
goto out;
|
|
}
|
|
|
|
GST_DEBUG_OBJECT (srtobject->element,
|
|
"Opening SRT socket with parameters: %" GST_PTR_FORMAT,
|
|
srtobject->parameters);
|
|
|
|
if (!gst_structure_get_enum (srtobject->parameters,
|
|
"mode", GST_TYPE_SRT_CONNECTION_MODE, (gint *) & connection_mode)) {
|
|
GST_WARNING_OBJECT (srtobject->element,
|
|
"Cannot get connection mode information." " Use default mode");
|
|
connection_mode = GST_TYPE_SRT_CONNECTION_MODE;
|
|
}
|
|
|
|
srtobject->listener_poll_id = srt_epoll_create ();
|
|
|
|
srtobject->opened =
|
|
gst_srt_object_open_connection
|
|
(srtobject, cancellable, connection_mode, sa, sa_len, error);
|
|
|
|
out:
|
|
g_clear_object (&socket_address);
|
|
|
|
return srtobject->opened;
|
|
}
|
|
|
|
void
|
|
gst_srt_object_close (GstSRTObject * srtobject)
|
|
{
|
|
if (srtobject->poll_id != SRT_ERROR) {
|
|
srt_epoll_remove_usock (srtobject->poll_id, srtobject->sock);
|
|
}
|
|
|
|
if (srtobject->sock != SRT_INVALID_SOCK) {
|
|
|
|
GST_DEBUG_OBJECT (srtobject->element, "Closing SRT socket (0x%x)",
|
|
srtobject->sock);
|
|
|
|
srt_close (srtobject->sock);
|
|
srtobject->sock = SRT_INVALID_SOCK;
|
|
}
|
|
|
|
if (srtobject->loop) {
|
|
g_main_loop_quit (srtobject->loop);
|
|
|
|
if (srtobject->listener_poll_id != SRT_ERROR) {
|
|
srt_epoll_remove_usock (srtobject->listener_poll_id,
|
|
srtobject->listener_sock);
|
|
srtobject->listener_poll_id = SRT_ERROR;
|
|
}
|
|
|
|
g_thread_join (srtobject->thread);
|
|
|
|
g_clear_pointer (&srtobject->thread, g_thread_unref);
|
|
g_clear_pointer (&srtobject->loop, g_main_loop_unref);
|
|
g_clear_pointer (&srtobject->context, g_main_context_unref);
|
|
}
|
|
|
|
if (srtobject->listener_sock != SRT_INVALID_SOCK) {
|
|
GST_DEBUG_OBJECT (srtobject->element, "Closing SRT listener socket (0x%x)",
|
|
srtobject->listener_sock);
|
|
|
|
srt_close (srtobject->listener_sock);
|
|
srtobject->listener_sock = SRT_INVALID_SOCK;
|
|
}
|
|
|
|
g_list_foreach (srtobject->callers, (GFunc) srt_caller_invoke_removed_closure,
|
|
srtobject);
|
|
g_list_free_full (srtobject->callers, (GDestroyNotify) srt_caller_free);
|
|
|
|
g_clear_pointer (&srtobject->caller_added_closure, g_closure_unref);
|
|
g_clear_pointer (&srtobject->caller_removed_closure, g_closure_unref);
|
|
|
|
srtobject->opened = FALSE;
|
|
}
|
|
|
|
static gboolean
|
|
gst_srt_object_wait_caller (GstSRTObject * srtobject,
|
|
GCancellable * cancellable, GError ** errorj)
|
|
{
|
|
gboolean ret = FALSE;
|
|
|
|
GST_DEBUG_OBJECT (srtobject->element, "Waiting connection from caller");
|
|
|
|
GST_OBJECT_LOCK (srtobject->element);
|
|
while (!g_cancellable_is_cancelled (cancellable)) {
|
|
ret = g_list_length (srtobject->callers) >= 1;
|
|
if (ret)
|
|
break;
|
|
g_cond_wait (&srtobject->sock_cond,
|
|
GST_OBJECT_GET_LOCK (srtobject->element));
|
|
}
|
|
GST_OBJECT_UNLOCK (srtobject->element);
|
|
|
|
GST_DEBUG_OBJECT (srtobject->element, "got %s connection", ret ? "a" : "no");
|
|
|
|
return ret;
|
|
}
|
|
|
|
gssize
|
|
gst_srt_object_read (GstSRTObject * srtobject,
|
|
guint8 * data, gsize size, GCancellable * cancellable, GError ** error)
|
|
{
|
|
gssize len = 0;
|
|
gint poll_timeout;
|
|
gint msg_size;
|
|
GstSRTConnectionMode connection_mode = GST_SRT_CONNECTION_MODE_NONE;
|
|
gint poll_id;
|
|
|
|
/* Only source element can read data */
|
|
g_return_val_if_fail (gst_uri_handler_get_uri_type (GST_URI_HANDLER
|
|
(srtobject->element)) == GST_URI_SRC, -1);
|
|
|
|
gst_structure_get_enum (srtobject->parameters, "mode",
|
|
GST_TYPE_SRT_CONNECTION_MODE, (gint *) & connection_mode);
|
|
|
|
if (connection_mode == GST_SRT_CONNECTION_MODE_LISTENER) {
|
|
SRTCaller *caller;
|
|
|
|
if (!gst_srt_object_wait_caller (srtobject, cancellable, error))
|
|
return -1;
|
|
|
|
caller = srtobject->callers->data;
|
|
poll_id = caller->poll_id;
|
|
|
|
} else {
|
|
poll_id = srtobject->poll_id;
|
|
}
|
|
|
|
if (!gst_structure_get_int (srtobject->parameters, "poll-timeout",
|
|
&poll_timeout)) {
|
|
poll_timeout = GST_SRT_DEFAULT_POLL_TIMEOUT;
|
|
}
|
|
|
|
if (!gst_structure_get_int (srtobject->parameters, "msg-size", &msg_size)) {
|
|
msg_size = GST_SRT_DEFAULT_MSG_SIZE;
|
|
}
|
|
|
|
while (!g_cancellable_is_cancelled (cancellable)) {
|
|
|
|
SRTSOCKET rsock;
|
|
gint rsocklen = 1;
|
|
|
|
if (srt_epoll_wait (poll_id, &rsock,
|
|
&rsocklen, 0, 0, poll_timeout, NULL, 0, NULL, 0) < 0) {
|
|
continue;
|
|
}
|
|
|
|
if (rsocklen < 0) {
|
|
GST_WARNING_OBJECT (srtobject->element,
|
|
"abnormal SRT socket is detected");
|
|
srt_close (rsock);
|
|
}
|
|
|
|
switch (srt_getsockstate (rsock)) {
|
|
case SRTS_BROKEN:
|
|
case SRTS_NONEXIST:
|
|
case SRTS_CLOSED:
|
|
if (connection_mode == GST_SRT_CONNECTION_MODE_LISTENER) {
|
|
/* Caller has been disappeared. */
|
|
return 0;
|
|
} else {
|
|
GST_WARNING_OBJECT (srtobject->element,
|
|
"Invalid SRT socket. Trying to reconnect");
|
|
gst_srt_object_close (srtobject);
|
|
if (!gst_srt_object_open (srtobject, cancellable, error)) {
|
|
return -1;
|
|
}
|
|
continue;
|
|
}
|
|
case SRTS_CONNECTED:
|
|
/* good to go */
|
|
break;
|
|
default:
|
|
/* not-ready */
|
|
continue;
|
|
}
|
|
|
|
while (len < size) {
|
|
gint recv;
|
|
gint rest = size - len;
|
|
|
|
/* Workaround for SRT being unhappy about buffers that
|
|
* are less than the chunk size */
|
|
if (rest < msg_size)
|
|
goto out;
|
|
|
|
recv = srt_recvmsg (rsock, (char *) (data + len), rest);
|
|
|
|
if (recv <= 0)
|
|
goto out;
|
|
|
|
len += recv;
|
|
}
|
|
}
|
|
|
|
out:
|
|
return len;
|
|
}
|
|
|
|
void
|
|
gst_srt_object_wakeup (GstSRTObject * srtobject, GCancellable * cancellable)
|
|
{
|
|
GST_DEBUG_OBJECT (srtobject->element, "waking up SRT");
|
|
|
|
/* Removing all socket descriptors from the monitoring list
|
|
* wakes up SRT's threads. We only have one to remove. */
|
|
srt_epoll_remove_usock (srtobject->poll_id, srtobject->sock);
|
|
|
|
/* connection is only waited for in listener mode,
|
|
* but there is no harm in raising signal in any case */
|
|
GST_OBJECT_LOCK (srtobject->element);
|
|
/* however, a race might be harmful ...
|
|
* the cancellation is used as 'flushing' flag here,
|
|
* so make sure it is so detected by the intended part at proper time */
|
|
g_cancellable_cancel (cancellable);
|
|
g_cond_signal (&srtobject->sock_cond);
|
|
GST_OBJECT_UNLOCK (srtobject->element);
|
|
}
|
|
|
|
static gboolean
|
|
gst_srt_object_send_headers (GstSRTObject * srtobject, SRTSOCKET sock,
|
|
gint poll_id, gint poll_timeout, GstBufferList * headers,
|
|
GCancellable * cancellable)
|
|
{
|
|
guint size, i;
|
|
|
|
if (!headers)
|
|
return TRUE;
|
|
|
|
size = gst_buffer_list_length (headers);
|
|
|
|
GST_DEBUG_OBJECT (srtobject->element, "Sending %u stream headers", size);
|
|
|
|
for (i = 0; i < size; i++) {
|
|
SRTSOCKET wsock = sock;
|
|
gint wsocklen = 1;
|
|
|
|
GstBuffer *buffer = gst_buffer_list_get (headers, i);
|
|
GstMapInfo mapinfo;
|
|
|
|
if (g_cancellable_is_cancelled (cancellable)) {
|
|
return FALSE;
|
|
}
|
|
|
|
if (poll_id > 0 && srt_epoll_wait (poll_id, 0, 0, &wsock,
|
|
&wsocklen, poll_timeout, NULL, 0, NULL, 0) < 0) {
|
|
continue;
|
|
}
|
|
|
|
GST_TRACE_OBJECT (srtobject->element, "sending header %u %" GST_PTR_FORMAT,
|
|
i, buffer);
|
|
|
|
if (!gst_buffer_map (buffer, &mapinfo, GST_MAP_READ)) {
|
|
GST_ELEMENT_ERROR (srtobject->element, RESOURCE, READ,
|
|
("Could not map the input stream"), (NULL));
|
|
return FALSE;
|
|
}
|
|
|
|
if (srt_sendmsg2 (wsock, (char *) mapinfo.data, mapinfo.size,
|
|
0) == SRT_ERROR) {
|
|
GST_ELEMENT_ERROR (srtobject->element, RESOURCE, WRITE, NULL,
|
|
("%s", srt_getlasterror_str ()));
|
|
gst_buffer_unmap (buffer, &mapinfo);
|
|
return FALSE;
|
|
}
|
|
|
|
gst_buffer_unmap (buffer, &mapinfo);
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static gssize
|
|
gst_srt_object_write_to_callers (GstSRTObject * srtobject,
|
|
GstBufferList * headers,
|
|
const GstMapInfo * mapinfo, GCancellable * cancellable, GError ** error)
|
|
{
|
|
GList *callers;
|
|
|
|
GST_OBJECT_LOCK (srtobject->element);
|
|
callers = srtobject->callers;
|
|
while (callers != NULL) {
|
|
gssize len = 0;
|
|
const guint8 *msg = mapinfo->data;
|
|
gint sent;
|
|
|
|
SRTCaller *caller = callers->data;
|
|
callers = callers->next;
|
|
|
|
if (g_cancellable_is_cancelled (cancellable)) {
|
|
GST_OBJECT_UNLOCK (srtobject->element);
|
|
return -1;
|
|
}
|
|
|
|
if (!caller->sent_headers) {
|
|
if (!gst_srt_object_send_headers (srtobject, caller->sock, -1,
|
|
-1, headers, cancellable)) {
|
|
goto err;
|
|
}
|
|
caller->sent_headers = TRUE;
|
|
}
|
|
|
|
while (len < mapinfo->size) {
|
|
gint rest = mapinfo->size - len;
|
|
sent = srt_sendmsg2 (caller->sock, (char *) (msg + len), rest, 0);
|
|
if (sent < 0) {
|
|
goto err;
|
|
}
|
|
len += sent;
|
|
}
|
|
|
|
continue;
|
|
|
|
err:
|
|
srtobject->callers = g_list_remove (srtobject->callers, caller);
|
|
srt_caller_invoke_removed_closure (caller, srtobject);
|
|
GST_OBJECT_UNLOCK (srtobject->element);
|
|
srt_caller_free (caller);
|
|
GST_OBJECT_LOCK (srtobject->element);
|
|
}
|
|
|
|
GST_OBJECT_UNLOCK (srtobject->element);
|
|
|
|
return mapinfo->size;
|
|
}
|
|
|
|
static gssize
|
|
gst_srt_object_write_one (GstSRTObject * srtobject,
|
|
GstBufferList * headers,
|
|
const GstMapInfo * mapinfo, GCancellable * cancellable, GError ** error)
|
|
{
|
|
gssize len = 0;
|
|
gint poll_timeout;
|
|
const guint8 *msg = mapinfo->data;
|
|
|
|
if (!gst_structure_get_int (srtobject->parameters, "poll-timeout",
|
|
&poll_timeout)) {
|
|
poll_timeout = GST_SRT_DEFAULT_POLL_TIMEOUT;
|
|
}
|
|
|
|
if (!srtobject->sent_headers) {
|
|
if (!gst_srt_object_send_headers (srtobject, srtobject->sock,
|
|
srtobject->poll_id, poll_timeout, headers, cancellable)) {
|
|
return -1;
|
|
}
|
|
srtobject->sent_headers = TRUE;
|
|
}
|
|
|
|
while (len < mapinfo->size) {
|
|
SRTSOCKET wsock;
|
|
gint wsocklen = 1;
|
|
|
|
gint sent;
|
|
gint rest = mapinfo->size - len;
|
|
|
|
if (g_cancellable_is_cancelled (cancellable)) {
|
|
break;
|
|
}
|
|
|
|
if (srt_epoll_wait (srtobject->poll_id, 0, 0, &wsock,
|
|
&wsocklen, poll_timeout, NULL, 0, NULL, 0) < 0) {
|
|
continue;
|
|
}
|
|
|
|
switch (srt_getsockstate (wsock)) {
|
|
case SRTS_BROKEN:
|
|
case SRTS_NONEXIST:
|
|
case SRTS_CLOSED:
|
|
GST_WARNING_OBJECT (srtobject->element,
|
|
"Invalid SRT socket. Trying to reconnect");
|
|
gst_srt_object_close (srtobject);
|
|
if (!gst_srt_object_open (srtobject, cancellable, error)) {
|
|
return -1;
|
|
}
|
|
continue;
|
|
case SRTS_CONNECTED:
|
|
/* good to go */
|
|
GST_LOG_OBJECT (srtobject->element, "good to go");
|
|
break;
|
|
default:
|
|
GST_WARNING_OBJECT (srtobject->element, "not ready");
|
|
/* not-ready */
|
|
continue;
|
|
}
|
|
|
|
sent = srt_sendmsg2 (wsock, (char *) (msg + len), rest, 0);
|
|
if (sent < 0) {
|
|
GST_ELEMENT_ERROR (srtobject->element, RESOURCE, WRITE, NULL,
|
|
("%s", srt_getlasterror_str ()));
|
|
break;
|
|
}
|
|
len += sent;
|
|
}
|
|
|
|
return len;
|
|
}
|
|
|
|
gssize
|
|
gst_srt_object_write (GstSRTObject * srtobject,
|
|
GstBufferList * headers,
|
|
const GstMapInfo * mapinfo, GCancellable * cancellable, GError ** error)
|
|
{
|
|
gssize len = 0;
|
|
GstSRTConnectionMode connection_mode = GST_SRT_CONNECTION_MODE_NONE;
|
|
|
|
/* Only sink element can write data */
|
|
g_return_val_if_fail (gst_uri_handler_get_uri_type (GST_URI_HANDLER
|
|
(srtobject->element)) == GST_URI_SINK, -1);
|
|
|
|
gst_structure_get_enum (srtobject->parameters, "mode",
|
|
GST_TYPE_SRT_CONNECTION_MODE, (gint *) & connection_mode);
|
|
|
|
if (connection_mode == GST_SRT_CONNECTION_MODE_LISTENER) {
|
|
if (!gst_srt_object_wait_caller (srtobject, cancellable, error))
|
|
return -1;
|
|
|
|
len =
|
|
gst_srt_object_write_to_callers (srtobject, headers, mapinfo,
|
|
cancellable, error);
|
|
} else {
|
|
len =
|
|
gst_srt_object_write_one (srtobject, headers, mapinfo, cancellable,
|
|
error);
|
|
}
|
|
|
|
return len;
|
|
}
|
|
|
|
GstStructure *
|
|
gst_srt_object_get_stats (GstSRTObject * srtobject)
|
|
{
|
|
SRT_TRACEBSTATS stats;
|
|
int ret;
|
|
GstStructure *s = gst_structure_new_empty ("application/x-srt-statistics");
|
|
|
|
/* FIXME: what if ruinning on listener mode */
|
|
if (srtobject->sock == SRT_INVALID_SOCK)
|
|
return s;
|
|
|
|
ret = srt_bstats (srtobject->sock, &stats, 0);
|
|
|
|
if (ret >= 0) {
|
|
gst_structure_set (s,
|
|
/* number of sent data packets, including retransmissions */
|
|
"packets-sent", G_TYPE_INT64, stats.pktSent,
|
|
/* number of lost packets (sender side) */
|
|
"packets-sent-lost", G_TYPE_INT, stats.pktSndLoss,
|
|
/* number of retransmitted packets */
|
|
"packets-retransmitted", G_TYPE_INT, stats.pktRetrans,
|
|
/* number of received ACK packets */
|
|
"packet-ack-received", G_TYPE_INT, stats.pktRecvACK,
|
|
/* number of received NAK packets */
|
|
"packet-nack-received", G_TYPE_INT, stats.pktRecvNAK,
|
|
/* time duration when UDT is sending data (idle time exclusive) */
|
|
"send-duration-us", G_TYPE_INT64, stats.usSndDuration,
|
|
/* number of sent data bytes, including retransmissions */
|
|
"bytes-sent", G_TYPE_UINT64, stats.byteSent,
|
|
/* number of retransmitted bytes */
|
|
"bytes-retransmitted", G_TYPE_UINT64, stats.byteRetrans,
|
|
/* number of too-late-to-send dropped bytes */
|
|
"bytes-sent-dropped", G_TYPE_UINT64, stats.byteSndDrop,
|
|
/* number of too-late-to-send dropped packets */
|
|
"packets-sent-dropped", G_TYPE_INT, stats.pktSndDrop,
|
|
/* sending rate in Mb/s */
|
|
"send-rate-mbps", G_TYPE_DOUBLE, stats.msRTT,
|
|
/* estimated bandwidth, in Mb/s */
|
|
"bandwidth-mbps", G_TYPE_DOUBLE, stats.mbpsBandwidth,
|
|
/* busy sending time (i.e., idle time exclusive) */
|
|
"send-duration-us", G_TYPE_UINT64, stats.usSndDuration,
|
|
"rtt-ms", G_TYPE_DOUBLE, stats.msRTT,
|
|
"negotiated-latency-ms", G_TYPE_INT, stats.msSndTsbPdDelay, NULL);
|
|
}
|
|
|
|
return s;
|
|
}
|