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Fixed and unified implementation shmdata and video broadcast

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This commit is contained in:
Bruno Herbelin
2022-12-07 09:32:08 +01:00
parent da06cf52ec
commit c5884ec498
3 changed files with 64 additions and 28 deletions
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48
src/ShmdataBroadcast.cpp
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@@ -1,3 +1,22 @@
/*
* This file is part of vimix - video live mixer
*
* **Copyright** (C) 2019-2022 Bruno Herbelin <bruno.herbelin@gmail.com>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
**/
#include <sstream>
#include <iostream>
@@ -14,16 +33,18 @@
#include "ShmdataBroadcast.h"
// Test command
// gst-launch-1.0 --gst-plugin-path=/usr/local/lib/gstreamer-1.0/ shmdatasrc socket-path=/tmp/vimix-feed ! videoconvert ! autovideosink
// gst-launch-1.0 --gst-plugin-path=/usr/local/lib/gstreamer-1.0/ shmdatasrc socket-path=/tmp/shmdata_vimix0 ! videoconvert ! autovideosink
std::string ShmdataBroadcast::shmdata_sink_ = "shmdatasink";
bool ShmdataBroadcast::available()
{
static bool _available = false;
// test for availability once on first run
static bool _tested = false;
if (!_tested)
_available = GstToolkit::has_feature("shmdatasink");
static bool _available = false, _tested = false;
if (!_tested) {
_available = GstToolkit::has_feature(ShmdataBroadcast::shmdata_sink_);
_tested = true;
}
return _available;
}
@@ -45,14 +66,10 @@ std::string ShmdataBroadcast::init(GstCaps *caps)
return std::string("Shmdata Broadcast : Invalid caps");
// create a gstreamer pipeline
std::string description = "appsrc name=src ! queue ! shmdatasink socket-path=XXXX name=sink";
std::string description = "appsrc name=src ! queue ! ";
// change the placeholder to include the broadcast port
std::string::size_type xxxx = description.find("XXXX");
if (xxxx != std::string::npos)
description.replace(xxxx, 4, socket_path_);
else
return std::string("Shmdata Broadcast : Failed to configure shared memory socket path.");
// complement pipeline with sink
description += ShmdataBroadcast::shmdata_sink_ + " name=sink";
// parse pipeline descriptor
GError *error = NULL;
@@ -63,6 +80,11 @@ std::string ShmdataBroadcast::init(GstCaps *caps)
return msg;
}
// setup shm sink
g_object_set (G_OBJECT (gst_bin_get_by_name (GST_BIN (pipeline_), "sink")),
"socket-path", socket_path_.c_str(),
NULL);
// setup custom app source
src_ = GST_APP_SRC( gst_bin_get_by_name (GST_BIN (pipeline_), "src") );
if (src_) {