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use std::error::Error;
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use std::fmt;
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/// Errors arising in packet- and depacketization.
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#[derive(Debug, PartialEq, Eq)]
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#[non_exhaustive]
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#[allow(missing_docs)]
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pub enum PacketError {
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    ErrShortPacket,
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    ErrPayloadTooLarge,
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    ErrTooManySpatialLayers,
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    ErrTooManyPDiff,
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    ErrH265CorruptedPacket,
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    ErrH266CorruptedPacket,
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    ErrInvalidH265PacketType,
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    ErrH265PACIPHESTooLong,
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    StapASizeLargerThanBuffer(usize, usize),
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    NaluTypeIsNotHandled(u8),
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    ErrVP8CorruptedPacket,
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    ErrVP9CorruptedPacket,
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    ErrAv1CorruptedPacket,
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}
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impl fmt::Display for PacketError {
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    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
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        match self {
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            PacketError::ErrShortPacket => write!(f, "Packet is too short"),
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            PacketError::ErrPayloadTooLarge => write!(f, "Payload exceeds the MTU"),
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            PacketError::ErrTooManySpatialLayers => write!(f, "Too many spatial layers"),
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            PacketError::ErrTooManyPDiff => write!(f, "Too many P-Diff"),
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            PacketError::ErrH265CorruptedPacket => write!(f, "H265 corrupted packet"),
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            PacketError::ErrH266CorruptedPacket => write!(f, "H266 corrupted packet"),
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            PacketError::ErrInvalidH265PacketType => write!(f, "H265 invalid packet type"),
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            PacketError::ErrH265PACIPHESTooLong => {
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                write!(f, "H265 PACI PHES field exceeds maximum size of 31 bytes")
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            }
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            PacketError::StapASizeLargerThanBuffer(size, buffer) => write!(
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                f,
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                "H264 StapA size larger than buffer: {} > {}",
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                size, buffer
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            ),
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            PacketError::NaluTypeIsNotHandled(nalu_type) => {
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                write!(f, "H264 NALU type is not handled: {}", nalu_type)
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            }
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            PacketError::ErrVP8CorruptedPacket => write!(f, "VP8 corrupted packet"),
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            PacketError::ErrVP9CorruptedPacket => write!(f, "VP9 corrupted packet"),
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            PacketError::ErrAv1CorruptedPacket => write!(f, "AV1 corrupted packet"),
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        }
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    }
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}
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impl Error for PacketError {}