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https://github.com/go-gst/go-gst.git
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16ee890d5c
* gst: add wrapper for deinit function * build: prevent unused variable warning in cgo code compilation. While compiling the code gcc complained with unused-variable According to: https://github.com/golang/go/issues/6883#issuecomment-383800123 Wall flag should not be used in CGO, nonetheless in this PR we only remove the unused variable warning. Co-authored-by: Solganik Alexander <alexanders@anyvision.co>
55 lines
1.9 KiB
Go
55 lines
1.9 KiB
Go
package gst
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/*
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#include "gst.go.h"
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static void* allocArgv(int argc) {
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return malloc(sizeof(char *) * argc);
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}
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*/
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import "C"
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import "unsafe"
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// CAT is the global DebugCategory used for logging from the bindings. It is okay to use
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// it from applications, but plugins should use their own.
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var CAT *DebugCategory
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// Init is a wrapper around gst_init() and must be called before any
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// other gstreamer calls and is used to initialize everything necessary.
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// In addition to setting up gstreamer for usage, a pointer to a slice of
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// strings may be passed in to parse standard gst command line arguments.
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// args will be modified to remove any flags that were handled.
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// Alternatively, nil may be passed in to not perform any command line
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// parsing.
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//
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// The bindings will also set up their own internal DebugCategory for logging
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// than can be invoked from applications or plugins as well. However, for
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// plugins it is generally better to initialize your own DebugCategory.
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func Init(args *[]string) {
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if args != nil {
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cargc := C.int(len(*args))
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cargv := (*[0xfff]*C.char)(C.allocArgv(cargc))
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defer C.free(unsafe.Pointer(cargv))
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for i, arg := range *args {
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cargv[i] = C.CString(arg)
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defer C.free(unsafe.Pointer(cargv[i]))
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}
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C.gst_init(&cargc, (***C.char)(unsafe.Pointer(&cargv)))
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unhandled := make([]string, cargc)
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for i := 0; i < int(cargc); i++ {
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unhandled[i] = C.GoString(cargv[i])
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}
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*args = unhandled
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} else {
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C.gst_init(nil, nil)
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}
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CAT = NewDebugCategory("GST_GO", DebugColorFgCyan, "GStreamer Go Bindings")
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}
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// Deinit is a wrapper for gst_deinit Clean up any resources created by GStreamer in gst_init().
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// It is normally not needed to call this function in a normal application as the resources will automatically be freed
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// when the program terminates. This function is therefore mostly used by testsuites and other memory profiling tools.
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func Deinit() {
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C.gst_deinit()
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}
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