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 2022 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_I_GST_SRC_H_
      21              : #define FIREBOLT_RIALTO_SERVER_I_GST_SRC_H_
      22              : 
      23              : #include "IDecryptionService.h"
      24              : #include <MediaCommon.h>
      25              : #include <gst/app/gstappsrc.h>
      26              : #include <gst/gst.h>
      27              : #include <list>
      28              : #include <memory>
      29              : #include <stdint.h>
      30              : #include <unordered_map>
      31              : 
      32              : namespace firebolt::rialto::server
      33              : {
      34              : class IGstSrc;
      35              : 
      36              : /**
      37              :  * @brief IGstSrc factory class, for the IGstSrc singleton object.
      38              :  */
      39              : class IGstSrcFactory
      40              : {
      41              : public:
      42          240 :     IGstSrcFactory() = default;
      43          240 :     virtual ~IGstSrcFactory() = default;
      44              : 
      45              :     /**
      46              :      * @brief Gets the IGstSrcFactory instance.
      47              :      *
      48              :      * @retval the factory instance or null on error.
      49              :      */
      50              :     static std::shared_ptr<IGstSrcFactory> getFactory();
      51              : 
      52              :     /**
      53              :      * @brief Gets a IGstSrc singleton object.
      54              :      *
      55              :      * @retval the src instance or null on error.
      56              :      */
      57              :     virtual std::shared_ptr<IGstSrc> getGstSrc() = 0;
      58              : };
      59              : 
      60              : /**
      61              :  * @brief Structure used for stream info
      62              :  */
      63              : struct StreamInfo
      64              : {
      65          689 :     explicit StreamInfo(GstElement *appSrc_ = nullptr, bool hasDrm_ = true) : appSrc(appSrc_), hasDrm(hasDrm_) {}
      66           24 :     bool operator==(const StreamInfo &other) const
      67              :     {
      68           16 :         return appSrc == other.appSrc && hasDrm == other.hasDrm && isDataNeeded == other.isDataNeeded &&
      69           40 :                isNeedDataPending == other.isNeedDataPending && isDataPushed == other.isDataPushed;
      70              :     }
      71              :     GstElement *appSrc;
      72              :     bool hasDrm;
      73              :     bool isDataNeeded{false};
      74              :     bool isNeedDataPending{false};
      75              :     bool isDataPushed{false};
      76              :     std::list<GstBuffer *> buffers{};
      77              :     bool underflowOccured{false};
      78              : };
      79              : /**
      80              :  * @brief Definition of a stream info map.
      81              :  */
      82              : using StreamInfoMap = std::unordered_map<MediaSourceType, StreamInfo>;
      83              : 
      84              : class IGstSrc
      85              : {
      86              : public:
      87          442 :     IGstSrc() = default;
      88          442 :     virtual ~IGstSrc() = default;
      89              : 
      90              :     IGstSrc(const IGstSrc &) = delete;
      91              :     IGstSrc &operator=(const IGstSrc &) = delete;
      92              :     IGstSrc(IGstSrc &&) = delete;
      93              :     IGstSrc &operator=(IGstSrc &&) = delete;
      94              : 
      95              :     /**
      96              :      * @brief Initalise rialto src.
      97              :      */
      98              :     virtual void initSrc() = 0;
      99              : 
     100              :     /**
     101              :      * @brief Sets up the app source.
     102              :      *
     103              :      * @param[in] source    : The source element.
     104              :      * @param[in] appsrc    : The app source to attach.
     105              :      * @param[in] callbacks : Callbacks to be set on the app source.
     106              :      * @param[in] userData  : Data to be passed to the callbacks.
     107              :      * @param[in] type      : The media type of the source.
     108              :      */
     109              :     virtual void setupAndAddAppArc(IDecryptionService *decryptionService, GstElement *source, StreamInfo &streamInfo,
     110              :                                    GstAppSrcCallbacks *callbacks, gpointer userData,
     111              :                                    firebolt::rialto::MediaSourceType type) = 0;
     112              : 
     113              :     /**
     114              :      * @brief Notify rialto source that all app sources have been added.
     115              :      *
     116              :      * @param[in] element   : The source element.
     117              :      */
     118              :     virtual void allAppSrcsAdded(GstElement *element) = 0;
     119              : };
     120              : 
     121              : }; // namespace firebolt::rialto::server
     122              : 
     123              : #endif // FIREBOLT_RIALTO_SERVER_I_GST_SRC_H_