1 #ifndef _JPEG_FRAME_VIEW_H
2 #define _JPEG_FRAME_VIEW_H 1
9 #include <movit/effect_chain.h>
10 #include <movit/ycbcr_input.h>
20 std::unique_ptr<uint8_t[]> y, cb, cr;
21 unsigned width, height;
22 unsigned chroma_subsampling_x, chroma_subsampling_y;
23 unsigned pitch_y, pitch_chroma;
25 enum CacheMissBehavior {
26 DECODE_IF_NOT_IN_CACHE,
27 RETURN_NULLPTR_IF_NOT_IN_CACHE
30 std::string filename_for_frame(unsigned stream_idx, int64_t pts);
31 std::shared_ptr<Frame> decode_jpeg(const std::string &filename);
32 std::shared_ptr<Frame> decode_jpeg_with_cache(JPEGID id, CacheMissBehavior cache_miss_behavior, bool *did_decode);
34 class JPEGFrameView : public QGLWidget {
38 JPEGFrameView(QWidget *parent);
40 void setFrame(unsigned stream_idx, int64_t pts, bool interpolated);
41 static void insert_interpolated_frame(unsigned stream_idx, int64_t pts, std::shared_ptr<Frame> frame);
43 void mousePressEvent(QMouseEvent *event) override;
45 unsigned get_stream_idx() const { return current_stream_idx; }
47 void setDecodedFrame(std::shared_ptr<Frame> frame);
54 void initializeGL() override;
55 void resizeGL(int width, int height) override;
56 void paintGL() override;
59 // The stream index of the latest frame we displayed.
60 unsigned current_stream_idx;
62 std::unique_ptr<movit::EffectChain> chain;
63 std::shared_ptr<Frame> current_frame; // So that we hold on to the pixels.
64 movit::YCbCrInput *ycbcr_input;
65 movit::YCbCrFormat ycbcr_format;
68 #endif // !defined(_JPEG_FRAME_VIEW_H)