Implement fades.

[nageru] / video_stream.h

diff --git a/video_stream.h b/video_stream.h
index f05a10a5b3b2c839087145596df1f9f2d9f2d029..146df0bedbae2abbb4887869b21d536319dc98ac 100644 (file)
--- a/video_stream.h
+++ b/video_stream.h
@@ -15,6 +15,7 @@ extern "C" {
 #include <thread>
 
 #include <movit/effect_chain.h>
+#include <movit/mix_effect.h>
 #include <movit/ycbcr_input.h>
 
 #include "ref_counted_gl_sync.h"
@@ -35,7 +36,8 @@ public:
        void stop();
 
        void schedule_original_frame(int64_t output_pts, unsigned stream_idx, int64_t input_pts);
-       void schedule_interpolated_frame(int64_t output_pts, unsigned stream_idx, int64_t input_first_pts, int64_t input_second_pts, float alpha);
+       void schedule_faded_frame(int64_t output_pts, unsigned stream_idx, int64_t input_pts, int secondary_stream_idx, int64_t secondary_input_pts, float fade_alpha);
+       void schedule_interpolated_frame(int64_t output_pts, unsigned stream_idx, int64_t input_first_pts, int64_t input_second_pts, float alpha, int secondary_stream_idx = -1, int64_t secondary_inputs_pts = -1, float fade_alpha = 0.0f); // -1 = no secondary frame.
 
 private:
 
@@ -48,10 +50,16 @@ private:
        // Allocated at the very start; if we're empty, we start dropping frames
        // (so that we don't build up an infinite interpolation backlog).
        struct InterpolatedFrameResources {
-               GLuint input_tex;  // Layered (contains both input frames).
-               GLuint gray_tex;  // Same.
-               GLuint cb_tex, cr_tex;
+               GLuint input_tex;  // Layered (contains both input frames), Y'CbCr.
+               GLuint gray_tex;  // Same, but Y only.
                GLuint input_fbos[2];  // For rendering to the two layers of input_tex.
+
+               // Destination textures and FBO if there is a fade.
+               GLuint fade_y_output_tex, fade_cbcr_output_tex;
+               GLuint fade_fbo;
+
+               GLuint cb_tex, cr_tex;  // Subsampled, final output.
+
                GLuint pbo;  // For reading the data back.
                void *pbo_contents;  // Persistently mapped.
        };
@@ -60,10 +68,14 @@ private:
 
        struct QueuedFrame {
                int64_t output_pts;
-               enum Type { ORIGINAL, INTERPOLATED } type;
+               enum Type { ORIGINAL, FADED, INTERPOLATED, FADED_INTERPOLATED } type;
                unsigned stream_idx;
                int64_t input_first_pts;  // The only pts for original frames.  
 
+               // For fades only (including fades against interpolated frames).
+               int secondary_stream_idx = -1;
+               int64_t secondary_input_pts;
+
                // For interpolated frames only.
                int64_t input_second_pts;
                float alpha;
@@ -80,10 +92,11 @@ private:
        bool seen_sync_markers = false;
 
        std::unique_ptr<YCbCrConverter> ycbcr_converter;
+       std::unique_ptr<YCbCrConverter> ycbcr_semiplanar_converter;
 
        // Frame interpolation.
        std::unique_ptr<DISComputeFlow> compute_flow;
-       std::unique_ptr<Interpolate> interpolate;
+       std::unique_ptr<Interpolate> interpolate, interpolate_no_split;
        std::unique_ptr<ChromaSubsampler> chroma_subsampler;
 };