> On Sep 26, 2018, at 06:49, James Courtier-Dutton <james.dut...@gmail.com> 
> wrote:
> 
> 
> 
> On 25 September 2018 at 23:24, Steven Liu <l...@chinaffmpeg.org> wrote:
> @@ -200,12 +200,27 @@ static int set_segment_filename(AVFormatContext *s)
>     if (seg->use_strftime) {
>         time_t now0;
>         struct tm *tm, tmpbuf;
> +        const char *dir;
> +        char *fn_copy;
>         time(&now0);
>         tm = localtime_r(&now0, &tmpbuf);
> ==========^^^ This is the time it uses. No command like option. 
of course i know this line.
>         if (!strftime(buf, sizeof(buf), s->url, tm)) {
>             av_log(oc, AV_LOG_ERROR, "Could not get segment filename with 
> strftime\n");
>             return AVERROR(EINVAL);
>         }
> +        /* Automatically create directories if needed */
> +        /* E.g. %Y/%m/%d/%Y-%m-%d_%H-%M-%S.mkv */
> +        fn_copy = av_strdup(buf);
> +        if (!fn_copy) {
> +            return AVERROR(ENOMEM);
> +        }
> +        dir = av_dirname(fn_copy);
> +        if (ff_mkdir_p(dir) == -1 && errno != EEXIST) {
> +            av_log(oc, AV_LOG_ERROR, "Could not create directory %s with 
> use_localtime_mkdir\n", dir);
> ==========look at here, what dose this error message mean?
I just think this error message is not a good message, because there have no 
use_localtime_mkdir for libavformat/segment.c
> 
> That is saying that the ff_mkdir_p  call failed.
> If the error message is confusing, we can change it to:
yes, the error message is confusing, maybe change it here is better.

> 
> +            av_log(oc, AV_LOG_ERROR, "Could not create directory %s\n", dir);
> 

Thanks
Steven





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