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bug fix
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@ -516,7 +516,7 @@ namespace dlib
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inline std::string get_channel_layout_str(const AVChannelLayout& ch_layout)
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{
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std::string str(32, '\0');
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const int ret = av_channel_layout_describe(&ch_layout, str.data(), str.size());
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const int ret = av_channel_layout_describe(&ch_layout, &str[0], str.size());
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if (ret > 0)
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str.resize(ret);
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else
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