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add more comments to appsink example

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This commit is contained in:
tinyzimmer
2020-10-03 16:09:25 +03:00
parent d869a6bea3
commit f98bb0642e
1 changed files with 10 additions and 2 deletions
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12
examples/appsink/main.go
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@@ -82,12 +82,16 @@ func createPipeline() (*gst.Pipeline, error) {
}
func mainLoop(pipeline *gst.Pipeline) error {
defer pipeline.Destroy()
defer pipeline.Destroy() // Will stop and unref the pipeline when this function returns
// Start the pipeline
pipeline.SetState(gst.StatePlaying)
// Retrieve the bus from the pipeline
bus := pipeline.GetPipelineBus()
// Loop over messsages from the pipeline
for {
msg := bus.TimedPop(time.Duration(-1))
if msg == nil {
@@ -95,10 +99,14 @@ func mainLoop(pipeline *gst.Pipeline) error {
}
switch msg.Type() {
case gst.MessageEOS:
msg.Unref() // Messsages are a good candidate for trying out runtime finalizers
break
case gst.MessageError:
return msg.ParseError()
err := msg.ParseError()
msg.Unref()
return err
}
msg.Unref()
}
return nil