metadata validation func

src/util/mod.rs

@@ -32,6 +32,21 @@ pub struct Metadata {
     pub audio: AudioMetadata,
 }
 
+impl Metadata {
+    pub fn is_valid(&self) -> bool {
+        match self {
+            x if x.video.width == u32::default() => false,
+            x if x.video.height == u32::default() => false,
+            x if x.video.framerate == f32::default() => false,
+            x if x.video.codec.is_none() => false,
+            x if x.audio.channels == u8::default() => false,
+            x if x.audio.samplerate == u32::default() => false,
+            x if x.audio.codec.is_none() => false,
+            _ => true,
+        }
+    }
+}
+
 pub enum FileType {
     FLV,
     MPEGTS,
@@ -66,6 +81,7 @@ pub enum DemuxerError {
     FLVPacketNotMetadata,
     FLVMetadataSyncFail,
     FLVMetadataAMFMarkerError,
+    MetadataValNotSet,
     CodecNotImplemented,
 }
 
@@ -81,6 +97,7 @@ impl fmt::Debug for DemuxerError {
             DemuxerError::FLVMetadataSyncFail => write!(f, "ECMA array not where expected"),
             DemuxerError::FLVMetadataAMFMarkerError => write!(f, "Marker value not recognized/implemented"),
             DemuxerError::CodecNotImplemented => write!(f, "Input file has unrecognized codec"),
+            DemuxerError::MetadataValNotSet => write!(f, "One or more metadata values failed to init"),
             _ => write!(f, "Error not described yet")
         }
     }