From 080acae08ec8cfe413c3e6e45bcf7f9222dfa02d Mon Sep 17 00:00:00 2001 From: zhangmeng <775834166@qq.com> Date: 星期四, 24 十月 2019 16:50:28 +0800 Subject: [PATCH] update --- goffmpeg.go | 97 +++++++++++++++++++++++++++++++++--------------- 1 files changed, 66 insertions(+), 31 deletions(-) diff --git a/goffmpeg.go b/goffmpeg.go index b497fac..efaf6cc 100644 --- a/goffmpeg.go +++ b/goffmpeg.go @@ -7,35 +7,84 @@ */ import "C" import ( + "errors" "fmt" "unsafe" ) -// GoFFMPEG handle for c -type GoFFMPEG struct { - lib C.libcffmpeg - ffmpeg C.cffmpeg -} +var libcffmpeg C.libcffmpeg -// New create handle -func New() *GoFFMPEG { - soFile := C.CString("./runtime/libcffmpeg.so") +// InitFFmpeg init ffmepg +func InitFFmpeg(soFileGo string) error { + soFile := C.CString(soFileGo) defer C.free(unsafe.Pointer(soFile)) lib := C.init_libcffmpeg(soFile) if lib == nil { - fmt.Println("open libcffmpeg.so error") + fmt.Println("open error: ", soFileGo) + return errors.New("init ffmpeg error") + } + libcffmpeg = lib + return nil +} + +// FreeFFmpeg free ffmpeg +func FreeFFmpeg() { + if libcffmpeg != nil { + C.release_libcffmpeg(libcffmpeg) + } +} + +// GoFFMPEG handle for c +type GoFFMPEG struct { + ffmpeg C.cffmpeg +} + +// New 2nd new +func New(GB, CPU bool) *GoFFMPEG { + + f := C.wrap_fn_create(unsafe.Pointer(libcffmpeg)) + + if f == nil { return nil } + if GB { + C.wrap_fn_run_gb28181(unsafe.Pointer(libcffmpeg), f) + } + if CPU { + C.wrap_fn_use_cpu(unsafe.Pointer(libcffmpeg), f) + } + return &GoFFMPEG{ - lib: lib, - ffmpeg: C.wrap_fn_create(), + ffmpeg: f, + } +} + +// NewWithLog log +func NewWithLog(GB, CPU bool, ffmpegLog string) *GoFFMPEG { + lf := C.CString(ffmpegLog) + defer C.free(unsafe.Pointer(lf)) + + f := C.wrap_fn_create2(unsafe.Pointer(libcffmpeg), lf) + if f == nil { + return nil + } + if GB { + C.wrap_fn_run_gb28181(unsafe.Pointer(libcffmpeg), f) + } + if CPU { + C.wrap_fn_use_cpu(unsafe.Pointer(libcffmpeg), f) + } + + return &GoFFMPEG{ + ffmpeg: f, } } // Free free handle func (h *GoFFMPEG) Free() { - C.wrap_fn_destroy(h.ffmpeg) - C.release_libcffmpeg(h.lib) + if h.ffmpeg != nil { + C.wrap_fn_destroy(unsafe.Pointer(libcffmpeg), h.ffmpeg) + } } // Run ffmpeg @@ -43,24 +92,10 @@ in := C.CString(input) defer C.free(unsafe.Pointer(in)) - C.wrap_fn_run(h.ffmpeg, in) + C.wrap_fn_run(unsafe.Pointer(libcffmpeg), h.ffmpeg, in) } -// DecodeJPEG decode jpeg file -func (h *GoFFMPEG) DecodeJPEG(input string) ([]byte, int, int) { - in := C.CString(input) - defer C.free(unsafe.Pointer(in)) - - var width C.int - var height C.int - p := C.wrap_fn_decode_jpeg(h.ffmpeg, in, &width, &height) - defer C.free(p) - - if width > 0 && height > 0 { - data := C.GoBytes(p, width*height*3) - wid := int(width) - hei := int(height) - return data, wid, hei - } - return nil, 0, 0 +// FPS fps +func (h *GoFFMPEG) FPS() int { + return int(C.wrap_fn_fps(unsafe.Pointer(libcffmpeg), h.ffmpeg)) } -- Gitblit v1.8.0