2023-10-13 20:52:26 CST W41D5

postproc.go

@@ -0,0 +1,86 @@
+package ffmpeg
+
+/*
+#include <libpostproc/postprocess.h>
+*/
+import "C"
+import "unsafe"
+
+// PostprocVersion returns the LIBPOSTPROC_VERSION_INT constant.
+func PostprocVersion() uint32 {
+	return (uint32)(C.postproc_version())
+}
+
+// PostprocConfiguration returns the libpostproc build-time configuration.
+func PostprocConfiguration() string {
+	return C.GoString(C.postproc_configuration())
+}
+
+// PostprocLicense returns the libpostproc license.
+func PostprocLicense() string {
+	return C.GoString(C.postproc_license())
+}
+
+const (
+	PP_QUALITY_MAX = C.PP_QUALITY_MAX
+)
+
+type PpContext C.pp_context
+
+type PpMode C.pp_mode
+
+// PpPostprocess
+func PpPostprocess(src [3]*uint8, srcStride []int32,
+	dst [3]*uint8, dstStride []int32,
+	horizontalSize, verticalSize int32,
+	QPStore *int8, QPStride int32,
+	ppMode *PpMode, ppContext *PpContext, pictType int32) {
+	C.pp_postprocess((**C.uint8_t)(unsafe.Pointer(&src[0])), (*C.int)(&srcStride[0]),
+		(**C.uint8_t)(unsafe.Pointer(&dst[0])), (*C.int)(&dstStride[0]),
+		(C.int)(horizontalSize), (C.int)(verticalSize),
+		(*C.int8_t)(QPStore), (C.int)(QPStride),
+		unsafe.Pointer(ppMode), unsafe.Pointer(ppContext), (C.int)(pictType))
+}
+
+// PpGetModeByNameAndQuality returns a pp_mode or NULL if an error occurred.
+func PpGetModeByNameAndQuality(name string, quality int32) *PpMode {
+	namePtr, nameFunc := StringCasting(name)
+	defer nameFunc()
+	return (*PpMode)(C.pp_get_mode_by_name_and_quality((*C.char)(namePtr), (C.int)(quality)))
+}
+
+// PpFreeMode
+func PpFreeMode(mode *PpMode) {
+	C.pp_free_mode(unsafe.Pointer(mode))
+}
+
+// PpGetContext
+func PpGetContext(width, height, flags int32) *PpContext {
+	return (*PpContext)(C.pp_get_context((C.int)(width), (C.int)(height), (C.int)(flags)))
+}
+
+// PpFreeContext
+func PpFreeContext(mode *PpContext) {
+	C.pp_free_context(unsafe.Pointer(mode))
+}
+
+const (
+	PP_CPU_CAPS_MMX     = C.PP_CPU_CAPS_MMX
+	PP_CPU_CAPS_MMX2    = C.PP_CPU_CAPS_MMX2
+	PP_CPU_CAPS_3DNOW   = C.PP_CPU_CAPS_3DNOW
+	PP_CPU_CAPS_ALTIVEC = C.PP_CPU_CAPS_ALTIVEC
+	PP_CPU_CAPS_AUTO    = C.PP_CPU_CAPS_AUTO
+)
+
+const (
+	PP_FORMAT     = C.PP_FORMAT
+	PP_FORMAT_420 = C.PP_FORMAT_420
+	PP_FORMAT_422 = C.PP_FORMAT_422
+	PP_FORMAT_411 = C.PP_FORMAT_411
+	PP_FORMAT_444 = C.PP_FORMAT_444
+	PP_FORMAT_440 = C.PP_FORMAT_440
+)
+
+const (
+	PP_PICT_TYPE_QP2 = C.PP_PICT_TYPE_QP2
+)