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Add ST2110-30 receiver to the gstreamer and demo
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112 changes: 112 additions & 0 deletions
112
cpp/libs/ossrf_gstreamer_api/lib/src/receiver/st2110_30_receiver_plugin.cpp
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| // Copyright (C) 2024 Advanced Media Workflow Association | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
|
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| #include "st2110_30_receiver_plugin.h" | ||
| #include "bisect/expected/macros.h" | ||
| #include "bisect/pipeline.h" | ||
| #include <gst/gst.h> | ||
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| using namespace bisect; | ||
| using namespace ossrf::gst::receiver; | ||
| using namespace ossrf::gst::plugins; | ||
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| namespace | ||
| { | ||
| constexpr auto queue_max_size_time = 200000; | ||
| constexpr auto queue_max_size_buffers = 0; | ||
| constexpr auto queue_max_size_bytes = 0; | ||
| }; // namespace | ||
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| struct gst_st2110_30_receiver_impl : gst_receiver_plugin_t | ||
| { | ||
| receiver_settings s_; | ||
| audio_info_t f_; | ||
| gst::pipeline pipeline_; | ||
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| gst_st2110_30_receiver_impl(receiver_settings settings, audio_info_t format) : s_(settings), f_(format) {} | ||
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| ~gst_st2110_30_receiver_impl() { stop(); } | ||
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| maybe_ok create_gstreamer_pipeline() | ||
| { | ||
| // Create pipeline and check if all elements are created successfully | ||
| BST_CHECK_ASSIGN(pipeline_, bisect::gst::pipeline::create(NULL)); | ||
| auto* pipeline = pipeline_.get(); | ||
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| // Add pipeline udp source | ||
| auto* source = gst_element_factory_make("udpsrc", NULL); | ||
| BST_ENFORCE(source != nullptr, "Failed creating GStreamer element udpsrc"); | ||
| BST_ENFORCE(gst_bin_add(GST_BIN(pipeline), source), "Failed adding udpsrc to the pipeline"); | ||
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| // Set udp source params | ||
| g_object_set(G_OBJECT(source), "address", s_.primary.source_ip_address.c_str(), NULL); | ||
| g_object_set(G_OBJECT(source), "auto-multicast", TRUE, NULL); | ||
| g_object_set(G_OBJECT(source), "port", s_.primary.source_port, NULL); | ||
| g_object_set(G_OBJECT(source), "multicast-iface", s_.primary.interface_name.c_str(), NULL); | ||
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| // Create and set caps for udp source | ||
| constexpr auto t = R"(application/x-rtp, clock-rate={rate}, channels={channels})"; | ||
| GstCaps* caps = gst_caps_from_string( | ||
| fmt::format(t, fmt::arg("rate", f_.sampling_rate), fmt::arg("channels", f_.number_of_channels)).c_str()); | ||
| g_object_set(G_OBJECT(source), "caps", caps, NULL); | ||
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| // Add pipeline rtpjitterbuffer | ||
| auto* jitter_buffer = gst_element_factory_make("rtpjitterbuffer", NULL); | ||
| BST_ENFORCE(jitter_buffer != nullptr, "Failed creating GStreamer element jitter_buffer"); | ||
| BST_ENFORCE(gst_bin_add(GST_BIN(pipeline), jitter_buffer), "Failed adding jitter_buffer to the pipeline"); | ||
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| // Add pipeline queue1 | ||
| auto* queue1 = gst_element_factory_make("queue", NULL); | ||
| BST_ENFORCE(queue1 != nullptr, "Failed creating GStreamer element queue"); | ||
| BST_ENFORCE(gst_bin_add(GST_BIN(pipeline), queue1), "Failed adding queue to the pipeline"); | ||
| g_object_set(G_OBJECT(queue1), "max-size-time", queue_max_size_time, "max-size-buffers", queue_max_size_buffers, | ||
| "max-size-bytes", queue_max_size_bytes, NULL); | ||
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| // Add pipeline rtp depay | ||
| auto* depay = gst_element_factory_make("rtpL24depay", NULL); | ||
| BST_ENFORCE(depay != nullptr, "Failed creating GStreamer element depay"); | ||
| BST_ENFORCE(gst_bin_add(GST_BIN(pipeline), depay), "Failed adding depay to the pipeline"); | ||
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| // Add pipeline video sink | ||
| auto* sink = gst_element_factory_make("pulsesink", NULL); | ||
| BST_ENFORCE(sink != nullptr, "Failed creating GStreamer element sink"); | ||
| BST_ENFORCE(gst_bin_add(GST_BIN(pipeline), sink), "Failed adding sink to the pipeline"); | ||
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| // Link all elements together | ||
| BST_ENFORCE(gst_element_link_many(source, jitter_buffer, queue1, depay, sink, NULL), | ||
| "Failed linking GStreamer video pipeline"); | ||
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| // Setup runner | ||
| pipeline_.run_loop(); | ||
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| return {}; | ||
| } | ||
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| void stop() noexcept override | ||
| { | ||
| pipeline_.stop(); | ||
| pipeline_ = {}; | ||
| } | ||
| }; | ||
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| // TODO this function will need to receive an SDP and use the information in it to build the GST pipeline | ||
| expected<gst_receiver_plugin_uptr> ossrf::gst::plugins::create_gst_st2110_30_plugin(receiver_settings settings, | ||
| audio_info_t format) noexcept | ||
| { | ||
| auto i = std::make_unique<gst_st2110_30_receiver_impl>(settings, format); | ||
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| BST_CHECK(i->create_gstreamer_pipeline()); | ||
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| return i; | ||
| } |
24 changes: 24 additions & 0 deletions
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cpp/libs/ossrf_gstreamer_api/lib/src/receiver/st2110_30_receiver_plugin.h
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,24 @@ | ||
| // Copyright (C) 2024 Advanced Media Workflow Association | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
|
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| #pragma once | ||
| #include "ossrf/gstreamer/api/receiver/receiver_plugin.h" | ||
| #include "ossrf/gstreamer/api/receiver/receiver_configuration.h" | ||
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| namespace ossrf::gst::plugins | ||
| { | ||
| bisect::expected<gst_receiver_plugin_uptr> | ||
| create_gst_st2110_30_plugin(ossrf::gst::receiver::receiver_settings settings, | ||
| ossrf::gst::receiver::audio_info_t format) noexcept; | ||
| } |
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