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Merge pull request #15000 from mshabunin:fix-videoio-writer

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This commit is contained in:
Alexander Alekhin 2019-07-09 12:59:09 +00:00
commit de4d304d90
1 changed files with 2 additions and 1 deletions
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3
modules/videoio/src/backend_plugin.cpp
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@ -480,7 +480,8 @@ public:
if (plugin_api->Writer_open)
{
CV_Assert(plugin_api->Writer_release);
if (CV_ERROR_OK == plugin_api->Writer_open(filename.empty() ? 0 : filename.c_str(), fourcc, fps, sz.width, sz.height, isColor, &writer))
CV_Assert(!filename.empty());
if (CV_ERROR_OK == plugin_api->Writer_open(filename.c_str(), fourcc, fps, sz.width, sz.height, isColor, &writer))
{
CV_Assert(writer);
return makePtr<PluginWriter>(plugin_api, writer);