1 files changed, 39 insertions, 0 deletions
diff --git a/filters/f_autoconvert.h b/filters/f_autoconvert.h
new file mode 100644
index 0000000000..72af21a0df
--- /dev/null
+++ b/filters/f_autoconvert.h
@@ -0,0 +1,39 @@
+#pragma once
+
+#include "filter.h"
+
+// A filter which automatically creates and uses a conversion filter based on
+// the filter settings, or passes through data unchanged if no conversion is
+// required.
+struct mp_autoconvert {
+    // f->pins[0] is input, f->pins[1] is output
+    struct mp_filter *f;
+};
+
+// (to free this, free the filter itself, mp_autoconvert.f)
+struct mp_autoconvert *mp_autoconvert_create(struct mp_filter *parent);
+
+// Add the imgfmt as allowed video image format, and error on non-video frames.
+// Each call adds to the list of allowed formats. Before the first call, all
+// formats are allowed (even non-video).
+// subfmt can be used to specify underlying surface formats for hardware formats,
+// otherwise must be 0.
+void mp_autoconvert_add_imgfmt(struct mp_autoconvert *c, int imgfmt, int subfmt);
+
+// Add the formats supported by the hwdec interops (or essentially refine them),
+// and trigger conversion if hw_subfmts mismatch. This is mostly a hack for
+// D3D11/ANGLE (which supports NV12 only).
+// Must be called mp_autoconvert_add_imgfmt(), and overrides them where formats
+// collide.
+struct mp_hwdec_devices;
+void mp_autoconvert_add_vo_hwdec_subfmts(struct mp_autoconvert *c,
+                                         struct mp_hwdec_devices *devs);
+
+// Reset set of allowed formats back to initial state. (This does not flush
+// any frames or remove currently active filters, although to get reasonable
+// behavior, you need to readd all previously allowed formats, or reset the
+// filter.)
+void mp_autoconvert_clear(struct mp_autoconvert *c);
+
+// vf_d3d11vpp.c
+struct mp_filter *vf_d3d11_create_outconv(struct mp_filter *parent);