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video: Add VideoInfo::is_valid() and guard against finfo being NULL when retrieving the video format

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This commit is contained in:
Sebastian Dröge 2020-06-07 14:13:39 +03:00
parent 51024345f8
commit de0f228075
1 changed files with 8 additions and 0 deletions
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8
gstreamer-video/src/video_info.rs
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@ -557,6 +557,10 @@ impl VideoInfo {
} }
} }
pub fn is_valid(&self) -> bool {
!self.0.finfo.is_null() && self.0.width > 0 && self.0.height > 0 && self.0.size > 0
}
pub fn from_caps(caps: &gst::CapsRef) -> Result<Self, glib::error::BoolError> { pub fn from_caps(caps: &gst::CapsRef) -> Result<Self, glib::error::BoolError> {
skip_assert_initialized!(); skip_assert_initialized!();
@ -586,6 +590,10 @@ impl VideoInfo {
} }
pub fn format(&self) -> ::VideoFormat { pub fn format(&self) -> ::VideoFormat {
if self.0.finfo.is_null() {
return ::VideoFormat::Unknown;
}
unsafe { from_glib((*self.0.finfo).format) } unsafe { from_glib((*self.0.finfo).format) }
} }