Line data    Source code

       1              : /*
       2              :  * If not stated otherwise in this file or this component's LICENSE file the
       3              :  * following copyright and licenses apply:
       4              :  *
       5              :  * Copyright 2025 Sky UK
       6              :  *
       7              :  * Licensed under the Apache License, Version 2.0 (the "License");
       8              :  * you may not use this file except in compliance with the License.
       9              :  * You may obtain a copy of the License at
      10              :  *
      11              :  * http://www.apache.org/licenses/LICENSE-2.0
      12              :  *
      13              :  * Unless required by applicable law or agreed to in writing, software
      14              :  * distributed under the License is distributed on an "AS IS" BASIS,
      15              :  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
      16              :  * See the License for the specific language governing permissions and
      17              :  * limitations under the License.
      18              :  */
      19              : 
      20              : #ifndef FIREBOLT_RIALTO_SERVER_FLUSH_ONPREROLL_CONTROLLER_H_
      21              : #define FIREBOLT_RIALTO_SERVER_FLUSH_ONPREROLL_CONTROLLER_H_
      22              : 
      23              : #include "MediaCommon.h"
      24              : #include <gst/gst.h>
      25              : #include <optional>
      26              : #include <set>
      27              : 
      28              : namespace firebolt::rialto::server
      29              : {
      30              : /**
      31              :  * @brief The workaround class for unresolved gstreamer preroll issue:
      32              :  *        https://gitlab.freedesktop.org/gstreamer/gstreamer/-/issues/150
      33              :  */
      34              : class FlushOnPrerollController
      35              : {
      36              : public:
      37          507 :     FlushOnPrerollController() = default;
      38          507 :     ~FlushOnPrerollController() = default;
      39              : 
      40              :     bool shouldPostponeFlush(const MediaSourceType &type) const;
      41              :     void setFlushing(const MediaSourceType &type, const GstState &currentPipelineState);
      42              :     void stateReached(const GstState &newPipelineState);
      43              :     void reset();
      44              : 
      45              : private:
      46              :     std::set<MediaSourceType> m_flushingSources{};
      47              :     std::optional<GstState> m_targetState{std::nullopt};
      48              :     bool m_isPrerolled{false};
      49              : };
      50              : } // namespace firebolt::rialto::server
      51              : 
      52              : #endif // FIREBOLT_RIALTO_SERVER_FLUSH_ONPREROLL_CONTROLLER_H_