Golang實(shí)現(xiàn)將視頻按照時間維度剪切的工具

更新時間：2022年12月27日 14:53:32 作者：劍客阿良_ALiang

這篇文章主要為大家詳細(xì)介紹了如何利用Golang實(shí)現(xiàn)將視頻按照時間維度進(jìn)行剪切，文中的示例代碼講解詳細(xì)，感興趣的小伙伴可以跟隨小編一起了解一下

前言

本文提供將視頻按照時間維度進(jìn)行剪切的工具方法，一如既往的實(shí)用主義。

主要也是學(xué)習(xí)一下golang使用ffmpeg工具的方式。

環(huán)境依賴

ffmpeg環(huán)境安裝，可以參考文末補(bǔ)充內(nèi)容

本文主要使用到的不是ffmpeg，而是ffprobe。

golang主要依賴庫

github.com/u2takey/ffmpeg-go

代碼

不廢話，上代碼。下面為功能實(shí)現(xiàn)的主要代碼。

package main
 
import (
	"csdn/utils"
	"fmt"
	"github.com/gofrs/uuid"
	"github.com/google/logger"
	ffmpeg "github.com/u2takey/ffmpeg-go"
	"path/filepath"
	"strings"
)
 
func in(target string, str_array []string) bool {
	for _, element := range str_array {
		if target == element {
			return true
		}
	}
	return false
}
 
//剪切視頻
func CutVideo(inputVideoPath, outputDir, startTime string, duration int) string {
	_formatArr := []string{"mp4", "flv"}
	_, _file := filepath.Split(inputVideoPath)
	_tmps := strings.Split(_file, ".")
	_ext := _tmps[len(_tmps)-1]
	if !in(_ext, _formatArr) {
		logger.Fatal("格式不支持")
	}
	_name, err := uuid.NewV4()
	if err != nil {
		logger.Fatal(err)
	}
	_resultVideoPath := filepath.Join(outputDir, fmt.Sprintf("%s.%s", _name.String(), _ext))
	err = ffmpeg.Input(inputVideoPath).
		Output(_resultVideoPath, ffmpeg.KwArgs{"ss": startTime, "t": duration, "c:v": "copy", "c:a": "copy"}).
		OverWriteOutput().ErrorToStdOut().Run()
	if err != nil {
		logger.Fatal(err)
	}
	return _resultVideoPath
}
 
func main() {
	logutil.Init(true, false, "1.log")
	defer logutil.Close()
	_result := CutVideo("E:\\360MoveData\\Users\\huyi\\Desktop\\3333333.mp4", "E:\\360MoveData\\Users\\huyi\\Desktop", "0:10", 5)
	fmt.Println(_result)
}

日志工具代碼如下，非必要。

package logutil
 
import (
	"github.com/google/logger"
	"os"
)
 
var pLogger *logger.Logger
 
// Init init logger
func Init(verbose, systemLog bool, logPath string) {
	file, err := os.OpenFile(logPath, os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0660)
	if err != nil {
		logger.Fatalf("logger Init: open log file(%v) error(%v)", logPath, err)
	}
	pLogger = logger.Init("FFmpegDemoLogger", verbose, systemLog, file)
}
 
// Close close logger
func Close() {
	pLogger.Close()
}

代碼說明

1、CutVideo方法參數(shù)分別為，輸入視頻地址、輸出目錄地址、剪切起始時間點(diǎn)、剪切持續(xù)時間。

2、起始時間的格式要注意，給了幾個格式樣式：0:01、10:11，前面為分鐘后面為秒。

3、做了簡單的視頻格式校驗(yàn)，如需添加，可以自己看著來。

4、最終視頻名使用uuid避免重復(fù)。

5、剪切的視頻時長不能超過視頻時間。

驗(yàn)證一下

準(zhǔn)備的視頻信息。

執(zhí)行結(jié)果

2022/12/27 14:10:54 compiled command: ffmpeg -i E:\360MoveData\Users\huyi\Desktop\3333333.mp4 -c:a copy -c:v copy -ss 0:10 -t 5 E:\360MoveData\Users\huyi\Desktop\eab5ec1a-acc2-4600-
b720-93b5ca5f6464.mp4 -y
ffmpeg version n4.3.1-20-g8a2acdc6da Copyright (c) 2000-2020 the FFmpeg developers
built with gcc 9.3-win32 (GCC) 20200320
configuration: --prefix=/ffbuild/prefix --pkg-config-flags=--static --pkg-config=pkg-config --cross-prefix=x86_64-w64-mingw32- --arch=x86_64 --target-os=mingw32 --enable-gpl --ena
ble-version3 --disable-debug --enable-iconv --enable-zlib --enable-libxml2 --enable-libfreetype --enable-libfribidi --enable-gmp --enable-lzma --enable-fontconfig --enable-libvmaf -
-disable-vulkan --enable-libvorbis --enable-amf --enable-libaom --enable-avisynth --enable-libdav1d --enable-ffnvcodec --enable-cuda-llvm --disable-libglslang --enable-libass --enab
le-libbluray --enable-libmp3lame --enable-libopus --enable-libtheora --enable-libvpx --enable-libwebp --enable-libmfx --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-
libopenjpeg --enable-librav1e --enable-schannel --enable-sdl2 --enable-libsoxr --enable-libsrt --enable-libtwolame --enable-libvidstab --enable-libx264 --enable-libx265 --enable-lib
xvid --enable-libzimg --extra-cflags=-DLIBTWOLAME_STATIC --extra-cxxflags= --extra-ldflags=-pthread --extra-libs=-lgomp
libavutil 56. 51.100 / 56. 51.100
libavcodec 58. 91.100 / 58. 91.100
libavformat 58. 45.100 / 58. 45.100
libavdevice 58. 10.100 / 58. 10.100
libavfilter 7. 85.100 / 7. 85.100
libswscale 5. 7.100 / 5. 7.100
libswresample 3. 7.100 / 3. 7.100
libpostproc 55. 7.100 / 55. 7.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'E:\360MoveData\Users\huyi\Desktop\3333333.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
creation_time : 2022-09-08T12:04:43.000000Z
Hw : 1
:
bitRate : 16000000
:
com.apple.quicktime.artwork: {"data":{"edittime":22,"infoStickerId":"","musicId":"","os":"windows","product":"lv","stickerId":"","videoEffectId":"","videoId":"245ba6f1-f2ab-4d70
-bc77-c70ea30c171a","videoParams":{"be":0,"ef":0,"ft":0,"ma":0,"me":0,"mu":0,"re":0,"sp":0,"st":0,"te":0,"t
maxrate : 16000000
:
te_is_reencode : 1
:
encoder : Lavf58.76.100
Duration: 00:00:26.91, start: 0.000000, bitrate: 11898 kb/s
Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv, bt709), 1920x1080 [SAR 1:1 DAR 16:9], 11741 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)
Metadata:
creation_time : 2022-09-08T12:04:43.000000Z
handler_name : VideoHandler
Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 156 kb/s (default)
Metadata:
creation_time : 2022-09-08T12:04:43.000000Z
handler_name : SoundHandler
Output #0, mp4, to 'E:\360MoveData\Users\huyi\Desktop\eab5ec1a-acc2-4600-b720-93b5ca5f6464.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
te_is_reencode : 1
:
Hw : 1
:
bitRate : 16000000
:
com.apple.quicktime.artwork: {"data":{"edittime":22,"infoStickerId":"","musicId":"","os":"windows","product":"lv","stickerId":"","videoEffectId":"","videoId":"245ba6f1-f2ab-4d70
-bc77-c70ea30c171a","videoParams":{"be":0,"ef":0,"ft":0,"ma":0,"me":0,"mu":0,"re":0,"sp":0,"st":0,"te":0,"t
maxrate : 16000000
:
encoder : Lavf58.45.100
Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv, bt709), 1920x1080 [SAR 1:1 DAR 16:9], q=2-31, 11741 kb/s, 30 fps, 30 tbr, 15360 tbn, 15360 tbc (default)
Metadata:
creation_time : 2022-09-08T12:04:43.000000Z
handler_name : VideoHandler
Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 156 kb/s (default)
Metadata:
creation_time : 2022-09-08T12:04:43.000000Z
handler_name : SoundHandler
Stream mapping:
Stream #0:0 -> #0:0 (copy)
Stream #0:1 -> #0:1 (copy)
Press [q] to stop, [?] for help
frame= 150 fps=0.0 q=-1.0 Lsize= 6607kB time=00:00:04.97 bitrate=10875.7kbits/s speed= 313x
video:6507kB audio:95kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.082792%
E:\360MoveData\Users\huyi\Desktop\eab5ec1a-acc2-4600-b720-93b5ca5f6464.mp4