Golang实现将视频按照时间维度剪切的工具

Golang视频时间维度剪切 Golang视频剪切 Golang视频 2022-12-27 15:12:41 577人浏览八月长安

摘要

目录前言环境依赖代码知识补充前言本文提供将视频按照时间维度进行剪切的工具方法，一如既往的实用主义。主要也是学习一下golang使用FFmpeg工具的方式。环境依赖 ffmpeg

前言

本文提供将视频按照时间维度进行剪切的工具方法，一如既往的实用主义。

主要也是学习一下golang使用FFmpeg工具的方式。

环境依赖

ffmpeg环境安装，可以参考文末补充内容

本文主要使用到的不是ffmpeg，而是ffprobe。

Golang主要依赖库

GitHub.com/u2takey/ffmpeg-go

代码

不废话，上代码。下面为功能实现的主要代码。

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
}
 
//剪切视频
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)
}

日志工具代码如下，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()
}

代码说明

1、CutVideo方法参数分别为，输入视频地址、输出目录地址、剪切起始时间点、剪切持续时间。

2、起始时间的格式要注意，给了几个格式样式：0:01、10:11，前面为分钟后面为秒。

3、做了简单的视频格式校验，如需添加，可以自己看着来。

4、最终视频名使用uuid避免重复。

5、剪切的视频时长不能超过视频时间。

验证一下

准备的视频信息。

执行结果

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