package goffmpeg
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/*
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#cgo LDFLAGS: -ldl
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#include <stdlib.h>
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#include "libcffmpeg.h"
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*/
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import "C"
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import (
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"fmt"
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"unsafe"
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)
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// GoFFMPEG handle for c
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type GoFFMPEG struct {
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lib C.libcffmpeg
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ffmpeg C.cffmpeg
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}
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// New create handle
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func New() *GoFFMPEG {
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soFile := C.CString("./lib/libcffmpeg.so")
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defer C.free(unsafe.Pointer(soFile))
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lib := C.init_libcffmpeg(soFile)
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if lib == nil {
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fmt.Println("open libcffmpeg.so error")
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return nil
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}
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return &GoFFMPEG{
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lib: lib,
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ffmpeg: C.wrap_fn_create(),
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}
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}
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// Free free handle
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func (h *GoFFMPEG) Free() {
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C.wrap_fn_destroy(h.ffmpeg)
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C.release_libcffmpeg(h.lib)
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}
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// Run ffmpeg
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func (h *GoFFMPEG) Run(input string) {
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in := C.CString(input)
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defer C.free(unsafe.Pointer(in))
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C.wrap_fn_run(h.ffmpeg, in)
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}
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// DecodeJPEG decode jpeg file
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func (h *GoFFMPEG) DecodeJPEG(input string) ([]byte, int, int) {
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in := C.CString(input)
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defer C.free(unsafe.Pointer(in))
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var width C.int
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var height C.int
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p := C.wrap_fn_decode_jpeg(h.ffmpeg, in, &width, &height)
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defer C.free(p)
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if width > 0 && height > 0 {
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data := C.GoBytes(p, width*height*3)
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wid := int(width)
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hei := int(height)
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return data, wid, hei
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}
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return nil, 0, 0
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}
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