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52 lines
1.4 KiB
C
52 lines
1.4 KiB
C
4 months ago
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#ifndef DECODESTREAM_H
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#define DECODESTREAM_H
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#include <QDebug>
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#include <QList>
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#include <QMutex>
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#include <QObject>
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#include <QQueue>
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#include <QThread>
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#include "avpacketqueuemanager.h"
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#include "ffmpeginclude.h"
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class DecodeStream : public QObject {
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Q_OBJECT
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public:
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DecodeStream(QObject *parent = nullptr);
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bool init(AVPacketQueueManager *queueManager,
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AVFormatContext *formatContext, int videoIndex);
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void close();
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public slots:
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void startDecode();
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signals:
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void repaintSignal(AVFrame *frame); // 重绘
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void startDecodeSignal();
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void sendErrorMessageSignal(QString message, int type);
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private:
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bool initObject(); // 初始化对象
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bool initDecoder(AVFormatContext *inputFormatContext,
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int videoIndex); // 初始化解码器
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AVFrame *decodePacket(AVPacket *inputPacket);
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void free(); // 释放
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bool isValidAVFrame(AVFrame *frame);
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bool isValidAVPacket(AVPacket *pkt);
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private:
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bool m_start = true;
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int m_videoIndex = 0;
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AVFormatContext *m_formatContext = nullptr;
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AVCodecContext *m_codecContext = nullptr; // 解码器上下文
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QQueue<AVPacket *> *m_packetsQueue = nullptr; // 解码前的视频帧队列
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AVFrame *m_frame = nullptr; // 解码后的视频帧
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AVFrame *m_frameTemp = nullptr;
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AVPacketQueueManager *m_queueManager = nullptr;
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QMutex m_mutex;
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};
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#endif // DECODESTREAM_H
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