整理代码

2026-09-28 21:33:04 +08:00 · 2026-09-28 21:33:04 +08:00 · c7b4e178ec
commit c7b4e178ec
364 changed files with 59691 additions and 0 deletions
--- a/video/core/VideoDecoder.cpp
+++ b/video/core/VideoDecoder.cpp
@ -0,0 +1,125 @@
+/*
+ *******************************************************************************
+ *                                   INCLUDE
+ *******************************************************************************
+ */
+#include "VideoDecoder.h"
+#include "Logger.h"
+#include "Demuxer.h"
+
+namespace Video
+{
+namespace Core
+{
+/*
+ *******************************************************************************
+ *                                CLASS DEFINE
+ *******************************************************************************
+ */
+VideoDecodeHandler::VideoDecodeHandler(const std::string& name, CodecID codecID, VideoComponent::Ptr pPrevious)
+    : _name(name), _pPrevious(pPrevious)
+{
+}
+
+VideoDecodeHandler::~VideoDecodeHandler()
+{
+}
+
+/*
+ *******************************************************************************
+ *                                CLASS DEFINE
+ *******************************************************************************
+ */
+VideoDecoder::VideoDecoder(const std::string& name): VideoComponent(name)
+{
+}
+
+VideoDecoder::~VideoDecoder()
+{
+}
+
+void VideoDecoder::start()
+{
+    _task.run(
+        [this](std::atomic<bool>& isCancelled) -> void
+        {
+            VideoDecodeHandler::Ptr pHandler;
+            while (!isCancelled)
+            {
+                try
+                {
+                    Frame::Ptr pFrame = nullptr;
+                    do
+                    {
+                        if (pHandler.isNull())
+                        {
+                            pFrame = pHandler->read();
+                            if (!pFrame.isNull())
+                                break;
+                        }
+
+                        Packet::Ptr pPacket = readPacket(1000);
+                        if (serialCodeWatcher().isChanged(pPacket->serialCode(), true))
+                        {
+                            auto pPrevious = previousComponents().first();
+                            auto pDemuxer  = pPrevious.cast<Demuxer>();
+                            if (pDemuxer)
+                            {
+                                auto pEncoder = pDemuxer->videoEncoder();
+                                pEncoder->config().copyTo(config());
+                                serialCodeManager().increment();
+
+                                pHandler = VideoDecodeHandler::create(pEncoder->getCodecID(), pEncoder);
+                            }
+                            else
+                                throw Poco::NotImplementedException(
+                                    Poco::format("Unsupported previous component: %s", pPrevious->name()));
+                        }
+
+                        pHandler->write(pPacket);
+                        pFrame = pHandler->read();
+                    } while (false);
+
+                    if (!pFrame)
+                        continue;
+
+                    postToNextComponents(sharedFromThis(), pFrame, MediaType::VIDEO);
+                }
+                catch (Poco::Exception& e)
+                {
+                    logger().error("%s: %s", name(), e.displayText());
+                    Poco::Thread::sleep(1000);
+                }
+                catch (std::exception& e)
+                {
+                    logger().error("%s: %s", name(), std::string(e.what()));
+                    Poco::Thread::sleep(1000);
+                }
+            }
+        });
+}
+
+void VideoDecoder::stop()
+{
+    _task.cancel();
+}
+
+Packet::Ptr VideoDecoder::readPacket(uint32_t timeout)
+{
+    if (packetQueues().empty())
+        throw Poco::NotFoundException("Packet queues is empty.");
+
+    return packetQueues().first()->dequeue(timeout);
+}
+
+void VideoDecoder::onLink(Core::Component::Ptr pPrevious)
+{
+    packetQueues().add(pPrevious, name(), MediaType::VIDEO);
+}
+
+void VideoDecoder::onUnlink(Core::Component::Ptr pPrevious)
+{
+    packetQueues().remove(pPrevious);
+}
+}
+}