aid:71590444新版本下载后， 未生成output.mp4

[justin201802]

嗯， 我又来了。 症状与之前一样， 没有生成output.mp4
你在非win系统下试试吧。
BTW: 给一些可能有用的信息
我执行了2次， 第一次的log如下

PS A:\FastestBilibiliDownloader-master\cmd> go run .\start-concurrent-engine.go
Please enter your id type(`aid` or `upid`)
aid
Please enter your id
71590444
2020/04/02 22:30:04 Start working.
2020/04/02 22:30:05 71590444:4_1.flv is downloading.
2020/04/02 22:30:05 71590444:1_1.flv is downloading.
2020/04/02 22:30:05 71590444:2_1.flv is downloading.
2020/04/02 22:30:05 71590444:5_1.flv is downloading.
2020/04/02 22:31:54 71590444:3_1.flv has finished.
2020/04/02 22:32:01 71590444:1_1.flv has finished.
2020/04/02 22:33:57 71590444:2_1.flv has finished.
2020/04/02 22:36:30 71590444:6_1.flv has finished.
2020/04/02 22:37:04 71590444:4_1.flv has finished.
2020/04/02 22:42:49 71590444:5_1.flv has finished.
2020/04/02 22:42:49 71590444  download completed.Start merging videos now.
2020/04/02 22:42:49 71590444  download completed.Start merging videos now.
2020/04/02 22:42:49 71590444  download completed.Start merging videos now.
2020/04/02 22:42:49 71590444  download completed.Start merging videos now.
2020/04/02 22:42:49 71590444  download completed.Start merging videos now.
2020/04/02 22:42:49 71590444  download completed.Start merging videos now.
2020/04/02 22:42:49 Video  71590444  merge is complete.
2020/04/02 22:42:49 All work has done

运行结果是：没有output.mp4, 下载的flv文件也都被删除了。

第二次，把删除flv的代码屏蔽掉， 运行log如下

PS A:\FastestBilibiliDownloader-master\cmd> go run .\start-concurrent-engine.go
Please enter your id type(`aid` or `upid`)
aid
Please enter your id
71590444
2020/04/02 22:46:09 Start working.
2020/04/02 22:46:10 71590444:5_1.flv is downloading.
2020/04/02 22:46:10 71590444:2_1.flv is downloading.
2020/04/02 22:46:10 71590444:4_1.flv is downloading.
2020/04/02 22:46:10 71590444:3_1.flv is downloading.
2020/04/02 22:46:10 71590444:1_1.flv is downloading.
2020/04/02 22:47:59 71590444:3_1.flv has finished.
2020/04/02 22:48:07 71590444:1_1.flv has finished.
2020/04/02 22:50:20 71590444:2_1.flv has finished.
2020/04/02 22:53:14 71590444:4_1.flv has finished.
2020/04/02 22:57:44 71590444:5_1.flv has finished.
2020/04/02 22:57:44 All work has done

flv文件保留着， 但还是没有output.mp4
而且那个concact.txt文件也没有， 应该是没有执行到相应的代码

[sodaling]

成的哈，我这几天看看，你看还得折腾你

[sunshinewithmoonlight]

下载合并任务完成后，下载完的一堆flv文件瞬间全没了。下载的文件夹里什么都没留下，震撼我妈
环境：win10（2004）

[sodaling]

这边之前耽搁了，我五一会花时间折腾清楚这些问题的呢。
也非常感谢各位的试用，这给了我很大的激励与鞭笞。

[justin201802]

嗯，最近也没仔细研究你的代码， 但根据之前的研究结果， 我感觉应该是GO里面多线程的问题， 我不懂GOLang所以没法提供更多的信息了。

[Sevzm]

最初和你同一个问题，现在解决了，建议你找一下你运行的目录里，有没有视频。
最后ffmpeg merge后，是会copy到当前目录，而不是download里

func GetMp4Dir() string {
	curDir, err := os.Getwd()
	if err != nil {
		panic(err)
	}
	fullDirPath := filepath.Join(curDir, "output")
	err = os.MkdirAll(fullDirPath, 0777)
	if err != nil {
		panic(err)
	}
	return fullDirPath
}

command := []string{"ffmpeg", "-f", "concat", "-safe", "0", "-i", contactTxtPath, "-c", "copy", videoOutputPath}

[Sevzm]

下载合并任务完成后，下载完的一堆flv文件瞬间全没了。下载的文件夹里什么都没留下，震撼我妈
环境：win10（2004）

建议下个Everything，依靠av号搜一下，视频应该是在的，就是不知道你怎么使用的了

[sunshinewithmoonlight]

啊，我把persist/videomerge.go里的85行：

removeTempFile(aidDirPath, _videoOutputName)

注释掉了。这样就不会担心文件被删了。