user19307: I use ffmpeg like this:
ffmpeg -i MyOwnSwordsman01.avi -filter_complex "drawtext=fontfile=c:/Windows/Fonts/simsun.ttc: text='第01回 %{pts\:gmtime\:0\:%M：%S}/43：20': x=5: y=466: fontsize=16: fontcolor=yellow@0.9: box=1: boxcolor=blue@0.6" -c:a copy -c:v libx264 -map 0 stamped/MyOwnSwordsman01.avi

It went wrong:
[Parsed_drawtext_0 @ 00000000025fae80] Cannot find a valid font for the family Sans
[AVFilterGraph @ 0000000000e3a160] Error initializing filter 'drawtext' with args 'fontfile=c:/Windows/Fonts/simsun.ttc: text=绗?1鍥?%{pts\:gmtime\:0\:%M\\:%S}/43锛?0: x=5: y=466: fontsize=16: fontcolor=yellow@0.9: box=1: boxcolor=blue@0.6'
Error initializing complex filters.
No such file or directory

So what's the matter? I have confirmed there is a simsun.ttc in C\ disk.
Thanks a lot!

user1871: Font paths have to be escaped:
fontfile='c\:\\Windows\\Fonts\\simsun.ttc'

19307: <p>I use ffmpeg like this:</p>

<pre><code>ffmpeg -i MyOwnSwordsman01.avi -filter_complex "drawtext=fontfile=c:/Windows/Fonts/simsun.ttc: text='第01回 %{pts\:gmtime\:0\:%M：%S}/43：20': x=5: y=466: fontsize=16: fontcolor=yellow@0.9: box=1: boxcolor=blue@0.6" -c:a copy -c:v libx264 -map 0 stamped/MyOwnSwordsman01.avi
</code></pre>

<p>It went wrong:</p>

<pre><code>[Parsed_drawtext_0 @ 00000000025fae80] Cannot find a valid font for the family Sans
[AVFilterGraph @ 0000000000e3a160] Error initializing filter 'drawtext' with args 'fontfile=c:/Windows/Fonts/simsun.ttc: text=绗?1鍥?%{pts\:gmtime\:0\:%M\\:%S}/43锛?0: x=5: y=466: fontsize=16: fontcolor=yellow@0.9: box=1: boxcolor=blue@0.6'
Error initializing complex filters.
No such file or directory
</code></pre>

<p>So what's the matter? I have confirmed there is a simsun.ttc in C\ disk.</p>

<p>Thanks a lot!</p>
 1871: <p>Font paths have to be escaped:</p>

<p><code>fontfile='c\:\\Windows\\Fonts\\simsun.ttc'</code></p>
