It fails to load subtitle on occasion

[guopm]

I am a user of bilidan, which uses mpv as backend to play videos online, loading subtitles locally (transformed by another script actually). When I use the lastest version of mpv(git-a319538) I am troubled that mpv isn't able to load subtitles anymore.

Here is the info of mpv on my computer:

mpv git-a319538 (C) 2000-2015 mpv/MPlayer/mplayer2 projects
 built on Wed Nov 18 14:19:31 CST 2015
ffmpeg library versions:
   libavutil       54.31.100
   libavcodec      56.60.100
   libavformat     56.40.101
   libswscale      3.1.101
   libavfilter     5.40.101
   libswresample   1.2.101
ffmpeg version: 2.8.2

Bilidan calls mpv like this way:

mpv --http-header-fields 'User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:6.0.2) Gecko/20100101 Firefox/6.0.2 Fengfan/1.0' --no-video-aspect --sub-ass --sub-file /tmp/tmp-danmaku2ass-erf751eq.ass --vf 'lavfi="fps=fps=60:round=down"' -- 'http://cn-gdgz7-cmcc.acgvideo.com/vg6/2/d6/5096359-1.flv?expires=1447835100&ssig=RLY_NV4IhcCRJfdBl2AImg&oi=2028777101&appkey=85eb6835b0a1034e&or=2026199066&rate=0'

While /tmp/tmp-danmaku2ass-erf751eq.ass is the location of sub file. Then I get an error:

Can not open external file /tmp/tmp-danmaku2ass-erf751eq.ass.

But there IS that file actually:

-rw-------. 1 1000 1000 211366 Nov 18 14:26 /tmp/tmp-danmaku2ass-erf751eq.ass

Everything works fine when I downgrade to v0.13.0.

It is worth mentioning that both of them work fine with local videos and local subtiltle files.

My system info:
OS: Fedora 23 x86_64 with xfce4 DE
CPU: Intel(R) Core(TM) i5-3470
GPU: NVIDIA Geforce GTX 750 Ti, driver 352.63
MPV build options: ./waf configure --enable-libmpv-shared

Hope for fixing it as soon as possible.

[ghost]

Shouldn't happen, and doesn't happen to me. Output with -v?

The file also might be broken. I recently switched the file reader from libass to ffmpeg, so that might be a reason.

[guopm]

Yeah you are right, I've found it contains one more blank line at the head of file.
subtitle that works fine starts with:

[Script Info]
...

subtitle converted by that script starts with:

<blank line>
[Script Info]
...

When I delete that blank line, problem solves^_^
I've fix that script and I'll try raising an issue for it. But I don't know much about the format of subtitle and doubt if a blank line at the head is bearable.

Thanks after all~

[ghost]

Should work in ffmpeg 3.0.