package goffmpeg

/*
#include <stdlib.h>
#include "libcffmpeg.h"
*/
import "C"
import "unsafe"

// FireRecorder fire recorder
func (h *GoFFMPEG) FireRecorder(id int64) {
	C.wrap_fn_fire_recorder(h.ffmpeg, C.long(id))
}

// BuildRecorder build recorder
func (h *GoFFMPEG) BuildRecorder(output string, mind, maxd int) {
	out := C.CString(output)
	defer C.free(unsafe.Pointer(out))

	C.wrap_fn_recorder(h.ffmpeg, out, C.int(mind), C.int(maxd))
}

// GetInfoRecorder info
func (h *GoFFMPEG) GetInfoRecorder() (int, string) {
	var i C.int = -1
	var l C.int

	p := C.wrap_fn_info_recorder(h.ffmpeg, &i, &l)
	if i == -1 {
		return -1, ""
	}
	defer C.free(unsafe.Pointer(p))

	return int(i), C.GoString(p)
}

// BuildDecoder build decoder
func (h *GoFFMPEG) BuildDecoder() {
	C.wrap_fn_decoder(h.ffmpeg)
}

// GetPicDecoder get pic from decoder
func (h *GoFFMPEG) GetPicDecoder() ([]byte, int, int) {
	var width C.int
	var height C.int

	p := C.wrap_fn_decoder_pic(h.ffmpeg, &width, &height)
	if width == 0 && height == 0 {
		return nil, 0, 0
	}
	defer C.free(unsafe.Pointer(p))
	d := C.GoBytes(p, width*height*3)
	wid := int(width)
	hei := int(height)

	return d, wid, hei
}