File indexing completed on 2024-06-16 04:38:29

 /*
     SPDX-FileCopyrightText: 2003 Fabrice Bellard
     SPDX-FileCopyrightText: 2020-2022 Mladen Milinkovic <max@smoothware.net>
 
     SPDX-License-Identifier: GPL-2.0-or-later
 */
 
 #ifndef FRAMEQUEUE_H
 #define FRAMEQUEUE_H
 
 extern "C" {
 #include "libavcodec/avcodec.h"
 #include "libavformat/avformat.h"
 }
 
 #include <QObject>
 
 QT_FORWARD_DECLARE_CLASS(QMutex)
 QT_FORWARD_DECLARE_CLASS(QWaitCondition)
 
 #define VIDEO_PICTURE_QUEUE_SIZE 3
 #define SUBPICTURE_QUEUE_SIZE 16
 #define SAMPLE_QUEUE_SIZE 9
 #define FRAME_QUEUE_SIZE FFMAX(SAMPLE_QUEUE_SIZE, FFMAX(VIDEO_PICTURE_QUEUE_SIZE, SUBPICTURE_QUEUE_SIZE))
 
 namespace SubtitleComposer {
 class PacketQueue;
 
 struct Frame {
     AVFrame *frame;
     AVSubtitle sub;
     int serial;
     double pts;           /* presentation timestamp for the frame */
     double duration;      /* estimated duration of the frame */
     int64_t pos;          /* byte position of the frame in the input file */
     int width;
     int height;
     int format;
     AVRational sar;
     bool uploaded;
 };
 
 class FrameQueue
 {
     friend class RenderThread;
 
 public:
     FrameQueue();
 
     void unrefItem(Frame *vp);
     int init(PacketQueue *pktq, int maxSize, int keepLast);
     void destory();
     void signal();
     Frame * peek();
     Frame * peekNext();
     Frame * peekLast();
     Frame * peekWritable();
     Frame * peekReadable();
     void push();
     void next();
     int nbRemaining();
     int64_t lastPos();
 
 private:
     Frame m_queue[FRAME_QUEUE_SIZE];
     int m_rIndex;
     int m_wIndex;
     int m_size;
     int m_maxSize;
     int m_keepLast;
     int m_rIndexShown;
     QMutex *m_mutex;
     QWaitCondition *m_cond;
     PacketQueue *m_pktQ;
 };
 }
 
 #endif // FRAMEQUEUE_H