mp4-atom 0.10.1

A MP4/ISOBMFF atom decoder and encoder
Documentation 
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use crate::{ext, AtomExt, Buf, BufMut, Encode, Error, Ext, FourCC, Result};

// SampleEncryptionBox (`senc`).
// From ISO/IEC 23007-7:2023 (Common Encryption), Section 7.2.1

// This can't really be parsed here, because it requires Per_sample_IV_Size,
// so unfortunately you just get a vector to work out yourself.

#[derive(Debug, Clone, PartialEq, Eq, Default)]
#[cfg_attr(feature = "serde", derive(serde::Serialize, serde::Deserialize))]
pub enum SencBoxVersion {
    #[default]
    V0,
    V1,
    V2,
}

ext! {
    name: Senc,
    versions: [0, 1, 2],
    flags: {senc_use_subsamples = 1,}
}

#[derive(Debug, Clone, PartialEq, Eq, Default)]
#[cfg_attr(feature = "serde", derive(serde::Serialize, serde::Deserialize))]
pub struct Senc {
    pub version: SencBoxVersion,
    pub use_subsamples: bool,
    pub data: Vec<u8>,
}

impl AtomExt for Senc {
    const KIND_EXT: FourCC = FourCC::new(b"senc");

    type Ext = SencExt;

    fn decode_body_ext<B: Buf>(buf: &mut B, ext: SencExt) -> Result<Self> {
        let bytes_remaining = buf.remaining();
        let bytes = buf.slice(bytes_remaining).to_vec();
        buf.advance(bytes_remaining);
        Ok(Senc {
            version: match ext.version {
                SencVersion::V0 => SencBoxVersion::V0,
                SencVersion::V1 => SencBoxVersion::V1,
                SencVersion::V2 => SencBoxVersion::V2,
            },
            use_subsamples: ext.senc_use_subsamples,
            data: bytes,
        })
    }

    fn encode_body_ext<B: BufMut>(&self, buf: &mut B) -> Result<SencExt> {
        self.data.encode(buf)?;
        Ok(SencExt {
            version: match self.version {
                SencBoxVersion::V0 => SencVersion::V0,
                SencBoxVersion::V1 => SencVersion::V1,
                SencBoxVersion::V2 => SencVersion::V2,
            },
            senc_use_subsamples: self.use_subsamples,
        })
    }
}

#[cfg(test)]
mod tests {

    use super::*;
    use crate::Decode;

    // From the audio_cbcs.mp4 sample in MPEG's file format conformance set
    const ENCODED_SENC: &[u8] = &[
        0x00, 0x00, 0x05, 0x80, 0x73, 0x65, 0x6e, 0x63, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
        0x57, 0x0a, 0x61, 0x06, 0x76, 0xcb, 0x88, 0xf3, 0x02, 0xd1, 0x0a, 0xc8, 0xbc, 0x66, 0xe0,
        0x39, 0xed, 0xf9, 0xe3, 0x83, 0xca, 0x83, 0xd4, 0xa5, 0xe1, 0xe2, 0x74, 0xc5, 0x38, 0x9e,
        0xd9, 0xa1, 0x0a, 0xf4, 0x79, 0xbc, 0xb4, 0x97, 0xe5, 0xa6, 0xeb, 0x06, 0xf8, 0x85, 0xa3,
        0xe8, 0xf5, 0xa6, 0x2c, 0xe7, 0xd8, 0xdd, 0x62, 0x75, 0x6a, 0x71, 0x89, 0xb8, 0x82, 0xe6,
        0xd6, 0x23, 0x3d, 0x40, 0x95, 0x1a, 0x50, 0x2b, 0x5f, 0xa4, 0xb1, 0x15, 0x6d, 0xa2, 0x48,
        0xbe, 0x3f, 0x8b, 0xfb, 0x71, 0x8a, 0x85, 0xe6, 0xd6, 0x27, 0x02, 0xca, 0xee, 0xd0, 0x23,
        0x6f, 0x72, 0x30, 0x62, 0x42, 0xdd, 0x9c, 0xb0, 0x03, 0xb0, 0x0f, 0xf6, 0x9c, 0x99, 0x6b,
        0x56, 0x53, 0xf4, 0x02, 0xad, 0x89, 0x50, 0x61, 0xd0, 0xac, 0x12, 0x52, 0xa6, 0xc3, 0x88,
        0xd9, 0xc2, 0x3a, 0x5b, 0x4b, 0x2d, 0xa5, 0x32, 0xa0, 0x31, 0x20, 0x03, 0x00, 0x9c, 0x6b,
        0xf3, 0xa4, 0x6e, 0xee, 0x81, 0x18, 0xfe, 0x78, 0xce, 0xf0, 0x9e, 0x96, 0xde, 0x07, 0x90,
        0xa6, 0x6c, 0xac, 0x84, 0x34, 0x26, 0x62, 0x0d, 0xa2, 0xc1, 0xdd, 0xdd, 0xf0, 0x01, 0x72,
        0x68, 0x6b, 0x29, 0x4f, 0xc3, 0xaa, 0xc0, 0xaa, 0x08, 0xf5, 0x3b, 0x83, 0x04, 0xa5, 0x4d,
        0x1d, 0x15, 0xa2, 0x64, 0x5e, 0xfa, 0xe0, 0xbc, 0x17, 0x31, 0x31, 0x8e, 0xa0, 0x9f, 0xc2,
        0xcb, 0x15, 0x66, 0x30, 0xea, 0xa1, 0x31, 0x2d, 0xac, 0xbe, 0x5f, 0x3f, 0xcf, 0xa4, 0x8c,
        0x7b, 0x21, 0x1a, 0xe4, 0xb4, 0x11, 0xf7, 0xeb, 0x25, 0xdf, 0xf8, 0x85, 0xcd, 0xd1, 0xe6,
        0x3c, 0xaa, 0x5d, 0xa1, 0x72, 0x39, 0x93, 0x26, 0xb0, 0xfd, 0x63, 0x15, 0xca, 0xea, 0xbd,
        0xd3, 0x8a, 0x02, 0x99, 0x23, 0x5e, 0x3c, 0xe6, 0x24, 0x52, 0x2a, 0x81, 0xe4, 0xc8, 0x65,
        0x49, 0x1d, 0x50, 0x23, 0x66, 0x3e, 0x7e, 0x94, 0x9f, 0x53, 0xa5, 0x66, 0xde, 0x6a, 0x2f,
        0x18, 0x48, 0x45, 0x0d, 0x7d, 0x87, 0xb8, 0xa6, 0x00, 0x5d, 0x66, 0xd5, 0x7f, 0x8e, 0x9c,
        0x12, 0x87, 0x3a, 0x72, 0x98, 0xb8, 0x9e, 0x05, 0x2e, 0x10, 0x6c, 0xf7, 0x13, 0x0e, 0xf5,
        0xcc, 0x32, 0x9f, 0x8e, 0x5e, 0xb3, 0xa9, 0xb5, 0x6b, 0xa0, 0xef, 0xd8, 0xb5, 0x22, 0x94,
        0xb8, 0x48, 0x8c, 0x7f, 0xdb, 0x9d, 0xb1, 0x57, 0x05, 0x7a, 0x6e, 0x4b, 0x46, 0x89, 0x01,
        0x75, 0xae, 0xc8, 0x9c, 0xaf, 0x29, 0x7e, 0xfb, 0x3c, 0xc7, 0xa0, 0x76, 0xe8, 0x9f, 0xcd,
        0xe0, 0xce, 0xb6, 0x5b, 0x57, 0xb9, 0xa9, 0x4a, 0xa4, 0x21, 0xd6, 0x3e, 0x99, 0x5a, 0xf1,
        0x74, 0xa5, 0xf7, 0xa5, 0xb2, 0xb8, 0x79, 0x81, 0x06, 0x79, 0xdb, 0x30, 0x71, 0x06, 0x9d,
        0xfc, 0xdb, 0x09, 0x40, 0x29, 0x8e, 0x89, 0x3d, 0xe6, 0x88, 0x01, 0x43, 0x8e, 0xf8, 0x4e,
        0xa0, 0x1b, 0xd8, 0xd8, 0x7e, 0xc4, 0xce, 0x1f, 0x1e, 0x81, 0x4a, 0xb2, 0x7f, 0x43, 0x7b,
        0xf5, 0x19, 0x23, 0xe9, 0x46, 0xfd, 0x7a, 0x14, 0x25, 0xb9, 0xaa, 0x14, 0x78, 0x16, 0x38,
        0x55, 0xdb, 0x12, 0xea, 0xc3, 0xc3, 0xb0, 0x21, 0x37, 0x86, 0x9a, 0xe9, 0xd7, 0xd6, 0x53,
        0x3c, 0x4e, 0xf1, 0xee, 0xb8, 0xbd, 0xda, 0xc5, 0xaf, 0x80, 0x77, 0x8d, 0xf1, 0x7d, 0x7f,
        0x3f, 0xdc, 0x07, 0xdc, 0xc9, 0x29, 0xc1, 0x9d, 0x38, 0x23, 0x8d, 0x85, 0x3a, 0x53, 0xef,
        0xd0, 0xd5, 0xb8, 0x2e, 0xe6, 0x28, 0xae, 0x2a, 0x26, 0x8e, 0x9d, 0x64, 0x86, 0xb3, 0x0f,
        0xe9, 0xb0, 0xc1, 0x99, 0x56, 0x9b, 0x19, 0xe1, 0x9e, 0x26, 0xfa, 0x51, 0x60, 0xda, 0x04,
        0x2f, 0x4f, 0x7b, 0x68, 0xbf, 0xe5, 0x66, 0x11, 0x3b, 0xbf, 0xfd, 0x2d, 0x61, 0x92, 0x7b,
        0x19, 0x92, 0x94, 0x06, 0xde, 0xa3, 0xea, 0xc3, 0x25, 0x27, 0x17, 0x9b, 0x3b, 0xcc, 0xfe,
        0x7e, 0x28, 0x39, 0x0e, 0x0d, 0x2e, 0x64, 0xc0, 0x32, 0xa2, 0x6d, 0x3a, 0x69, 0x46, 0xf8,
        0x9a, 0x6f, 0x87, 0x9b, 0xbf, 0x7a, 0xd7, 0x02, 0x15, 0xa8, 0x3b, 0x17, 0x22, 0x87, 0xdc,
        0xf6, 0xb8, 0x9b, 0x5e, 0xd3, 0xdd, 0xf3, 0x61, 0x7a, 0x7b, 0x16, 0x0c, 0x5f, 0x6f, 0xf6,
        0x01, 0xe6, 0x90, 0xbe, 0x2d, 0x94, 0x55, 0xb0, 0x7d, 0x08, 0xf8, 0x67, 0x1f, 0x22, 0x57,
        0x75, 0xeb, 0xa3, 0x98, 0x9d, 0x3a, 0x0f, 0xce, 0x3f, 0x64, 0x83, 0x2d, 0x9c, 0x27, 0xbc,
        0x3e, 0xe4, 0xf4, 0x25, 0xd7, 0xc6, 0xba, 0xaa, 0xe9, 0xf0, 0xb1, 0xeb, 0xcc, 0x8f, 0xaf,
        0x10, 0x26, 0xa3, 0x2c, 0x6c, 0xfe, 0x2d, 0xd3, 0x4b, 0xfb, 0x0d, 0x4f, 0x01, 0x4a, 0x34,
        0x94, 0x7a, 0x5e, 0xca, 0xcf, 0x31, 0x8e, 0x4c, 0x18, 0x64, 0xeb, 0x8c, 0x05, 0x21, 0x5f,
        0xdb, 0xe4, 0x95, 0xe5, 0x93, 0xb6, 0x32, 0xd7, 0x09, 0x61, 0x4f, 0x26, 0x88, 0x93, 0x2d,
        0x16, 0xa3, 0xbf, 0x1c, 0x12, 0xb2, 0x6f, 0xfc, 0x03, 0x73, 0x46, 0xb8, 0xe1, 0x54, 0x45,
        0xbc, 0x34, 0x79, 0x14, 0xd9, 0x6d, 0xf4, 0xa0, 0x22, 0x06, 0x30, 0x45, 0x14, 0xe3, 0xe7,
        0x2a, 0xae, 0xa4, 0xc2, 0xab, 0x4f, 0x82, 0x02, 0x52, 0xe5, 0x28, 0x18, 0x9b, 0x1c, 0x71,
        0x66, 0x80, 0x0b, 0x01, 0xc8, 0x55, 0x4b, 0x9c, 0xe7, 0xa3, 0xad, 0x87, 0xd2, 0x23, 0x17,
        0x0f, 0x85, 0x8d, 0x79, 0x0e, 0x59, 0x24, 0xa1, 0xbb, 0x39, 0x88, 0x8f, 0xeb, 0x3c, 0xce,
        0x47, 0x98, 0x6d, 0xc2, 0xeb, 0xb8, 0xd0, 0x9c, 0x12, 0x63, 0x68, 0x91, 0xa0, 0x03, 0x63,
        0x64, 0xe9, 0x3a, 0x59, 0x44, 0x2d, 0xe5, 0xdf, 0x7d, 0xd9, 0xad, 0x60, 0x63, 0x7c, 0xd4,
        0xca, 0x94, 0x94, 0xcd, 0x2d, 0x1e, 0x9c, 0xa6, 0x4b, 0x09, 0xee, 0x87, 0x81, 0xfe, 0xa7,
        0x27, 0x27, 0xb0, 0xcf, 0xb7, 0x3e, 0x14, 0x62, 0x87, 0xba, 0x35, 0x75, 0xe0, 0xf6, 0x33,
        0x88, 0x26, 0x15, 0x5f, 0xab, 0x10, 0xb7, 0xd2, 0x98, 0x8c, 0xf0, 0x9e, 0x39, 0xd7, 0x73,
        0x9e, 0x22, 0x92, 0x56, 0x0a, 0x3b, 0x53, 0xa4, 0x18, 0xe8, 0x5f, 0x25, 0x5c, 0x12, 0xa0,
        0x54, 0xe3, 0xfb, 0x89, 0xad, 0x27, 0xef, 0xd4, 0x56, 0xf4, 0xfc, 0xb5, 0x27, 0xec, 0x99,
        0xe3, 0x4b, 0xbe, 0x33, 0xea, 0x9a, 0xdc, 0xa2, 0x3a, 0x1a, 0x85, 0xb8, 0xc0, 0x4e, 0xc0,
        0x0d, 0x44, 0x92, 0xe3, 0xe6, 0x45, 0x0e, 0xe9, 0xbd, 0x19, 0x91, 0xc9, 0x07, 0xf3, 0x55,
        0xe6, 0x83, 0xb2, 0x42, 0x2f, 0x2c, 0x53, 0xb0, 0x2c, 0xc1, 0x78, 0x2c, 0x80, 0xda, 0xfe,
        0x5c, 0x46, 0x2a, 0xc1, 0xaa, 0xa8, 0xd8, 0xd2, 0x5c, 0x3a, 0x6d, 0xdd, 0xe9, 0x0a, 0xf1,
        0xa4, 0x36, 0xec, 0x74, 0xf8, 0xee, 0x28, 0x73, 0xf2, 0x01, 0xc9, 0xf2, 0xcd, 0x2a, 0x7b,
        0x57, 0x6a, 0x9f, 0x8d, 0xeb, 0x74, 0xac, 0xd2, 0x49, 0x88, 0xa8, 0xeb, 0x44, 0x1b, 0xc9,
        0x2f, 0xb4, 0x1b, 0x62, 0x5c, 0x01, 0xa8, 0x46, 0x96, 0xf4, 0x7c, 0x46, 0x1b, 0x2d, 0xc2,
        0x34, 0x93, 0x3e, 0x72, 0x03, 0xbe, 0xeb, 0x61, 0x84, 0x65, 0x3d, 0x02, 0x12, 0x90, 0x3d,
        0xbb, 0x1d, 0xa4, 0x7e, 0xbd, 0x2e, 0x39, 0x4d, 0x6d, 0xe2, 0x5b, 0xf7, 0x36, 0x33, 0x85,
        0xe8, 0x45, 0xee, 0x42, 0x1f, 0x02, 0x44, 0x66, 0x5d, 0x69, 0x60, 0xaf, 0x9f, 0x63, 0xe0,
        0x47, 0xd9, 0xfe, 0xff, 0x3d, 0xa0, 0x83, 0xab, 0x96, 0x7e, 0xcd, 0xbd, 0x6f, 0x76, 0x7e,
        0x65, 0x3a, 0x22, 0x0d, 0x1f, 0xc4, 0x10, 0xbc, 0xab, 0x67, 0xd2, 0x27, 0x31, 0xa2, 0x6b,
        0x89, 0x75, 0xf5, 0xab, 0xaa, 0x32, 0x57, 0x64, 0x9d, 0xc5, 0xd7, 0x0f, 0x76, 0x5c, 0x20,
        0x9c, 0x51, 0xb4, 0x2e, 0x81, 0x00, 0xd9, 0x41, 0x6f, 0x33, 0xba, 0x0b, 0x14, 0x25, 0xd0,
        0xc4, 0x00, 0x63, 0x4e, 0x9b, 0xc8, 0x8b, 0x09, 0x93, 0xab, 0x8b, 0x61, 0x50, 0x91, 0x6b,
        0x59, 0x94, 0xbf, 0xb7, 0x70, 0xc1, 0xd1, 0x5d, 0xff, 0xfc, 0xae, 0xe7, 0x59, 0x22, 0x72,
        0x3b, 0x2f, 0x4d, 0xc2, 0x47, 0xdf, 0xaa, 0xd0, 0x38, 0xf4, 0x99, 0xe7, 0xed, 0x1c, 0x01,
        0xb0, 0x51, 0xdd, 0xf1, 0xbc, 0x45, 0xd7, 0x01, 0x74, 0x68, 0xb7, 0x50, 0x66, 0x8b, 0xcf,
        0xe5, 0x21, 0xa4, 0xb0, 0x06, 0x7c, 0x21, 0x33, 0xc4, 0xa3, 0xce, 0xe0, 0xd8, 0x4a, 0x09,
        0xd5, 0xb6, 0x0a, 0x60, 0xdc, 0x5c, 0x3e, 0x22, 0x3a, 0x94, 0x63, 0x5c, 0x30, 0x54, 0x78,
        0x31, 0xd2, 0x9b, 0x06, 0x43, 0x58, 0x85, 0x42, 0xdf, 0xab, 0x97, 0x9f, 0x98, 0x66, 0x70,
        0xc1, 0x43, 0x76, 0xda, 0xf7, 0x73, 0xe9, 0x5d, 0xfe, 0xb3, 0x09, 0x95, 0x45, 0xca, 0x9f,
        0xbf, 0x3b, 0xa3, 0x0c, 0x0e, 0xae, 0xb4, 0x32, 0x73, 0xdb, 0x13, 0x34, 0x88, 0x42, 0xaf,
        0x6e, 0xe8, 0x55, 0xbc, 0xb7, 0x8d, 0x64, 0xbb, 0xa0, 0xb2, 0x28, 0x3f, 0x17, 0xf0, 0x65,
        0x4f, 0x98, 0x3b, 0x9f, 0x20, 0xcd, 0xfb, 0x06, 0xeb, 0xe5, 0x95, 0x8d, 0x17, 0x57, 0xc1,
        0x09, 0x4b, 0xbf, 0x90, 0xbb, 0x04, 0xce, 0xd1, 0xd3, 0x31, 0xeb, 0xff, 0x20, 0xf9, 0xcb,
        0xaf, 0x76, 0x58, 0x6a, 0x5a, 0x84, 0xaf, 0xc6, 0xed, 0x2d, 0x1b, 0x67, 0xbd, 0xe1, 0x91,
        0xd3, 0xde, 0x07, 0x56, 0x24, 0xa5, 0xca, 0xbf, 0x23, 0x55, 0x66, 0xe1, 0x98, 0x80, 0xec,
        0xa7, 0x5f, 0x4a, 0x9d, 0x7a, 0x4e, 0x93, 0x14, 0x3e, 0x44, 0xb2, 0xbd, 0x33, 0x35, 0xef,
        0x35, 0x17, 0x7f, 0xc7, 0x91, 0xb7, 0x42, 0x39, 0x33, 0x51, 0x72, 0xee, 0x0f, 0x2c, 0xf5,
        0xc9, 0xed, 0xec, 0x16, 0x89, 0xd7, 0xa4, 0x36, 0x1f, 0xe5, 0xb9, 0xf5, 0xe8, 0xba, 0x60,
        0x85, 0xf4, 0x2c, 0x25, 0xe7, 0x7b, 0x76, 0x20, 0x5a, 0xea, 0x59, 0x86, 0xd1, 0x55, 0x41,
        0x20, 0x74, 0xfe, 0x7f, 0xda, 0xb2, 0xf3, 0xc2, 0x16, 0xb3, 0xd8, 0xa2, 0xf4, 0x45, 0x18,
        0x11, 0xfc, 0xc1, 0xc5, 0x32, 0xa5, 0x95, 0x1e, 0x25, 0xcc, 0xdd, 0xf4, 0xc2, 0xe6, 0x04,
        0xbd, 0x11, 0xee, 0x99, 0x91, 0x59, 0xde, 0x71, 0x7d, 0x9a, 0xac, 0x2c, 0xa3, 0x39, 0xe1,
        0x81, 0x8f, 0x0a, 0x9c, 0x24, 0x74, 0x2b, 0xb3, 0x94, 0x95, 0x72, 0xb9, 0xef, 0xf3, 0x7b,
        0xc7, 0xc4, 0x55, 0xd3, 0x2c, 0xf8, 0x6b, 0x31, 0x75, 0xbf, 0x2e, 0x36, 0xe0,
    ];

    #[test]
    fn test_senc_v0() {
        let inbuf: &mut std::io::Cursor<&&[u8]> = &mut std::io::Cursor::new(&ENCODED_SENC);
        let parse_result = Senc::decode(inbuf);
        assert!(parse_result.is_ok());
        let senc = parse_result.unwrap();
        assert_eq!(
            senc,
            Senc {
                version: SencBoxVersion::V0,
                use_subsamples: false,
                data: vec![
                    0x00, 0x00, 0x00, 0x57, 0x0a, 0x61, 0x06, 0x76, 0xcb, 0x88, 0xf3, 0x02, 0xd1,
                    0x0a, 0xc8, 0xbc, 0x66, 0xe0, 0x39, 0xed, 0xf9, 0xe3, 0x83, 0xca, 0x83, 0xd4,
                    0xa5, 0xe1, 0xe2, 0x74, 0xc5, 0x38, 0x9e, 0xd9, 0xa1, 0x0a, 0xf4, 0x79, 0xbc,
                    0xb4, 0x97, 0xe5, 0xa6, 0xeb, 0x06, 0xf8, 0x85, 0xa3, 0xe8, 0xf5, 0xa6, 0x2c,
                    0xe7, 0xd8, 0xdd, 0x62, 0x75, 0x6a, 0x71, 0x89, 0xb8, 0x82, 0xe6, 0xd6, 0x23,
                    0x3d, 0x40, 0x95, 0x1a, 0x50, 0x2b, 0x5f, 0xa4, 0xb1, 0x15, 0x6d, 0xa2, 0x48,
                    0xbe, 0x3f, 0x8b, 0xfb, 0x71, 0x8a, 0x85, 0xe6, 0xd6, 0x27, 0x02, 0xca, 0xee,
                    0xd0, 0x23, 0x6f, 0x72, 0x30, 0x62, 0x42, 0xdd, 0x9c, 0xb0, 0x03, 0xb0, 0x0f,
                    0xf6, 0x9c, 0x99, 0x6b, 0x56, 0x53, 0xf4, 0x02, 0xad, 0x89, 0x50, 0x61, 0xd0,
                    0xac, 0x12, 0x52, 0xa6, 0xc3, 0x88, 0xd9, 0xc2, 0x3a, 0x5b, 0x4b, 0x2d, 0xa5,
                    0x32, 0xa0, 0x31, 0x20, 0x03, 0x00, 0x9c, 0x6b, 0xf3, 0xa4, 0x6e, 0xee, 0x81,
                    0x18, 0xfe, 0x78, 0xce, 0xf0, 0x9e, 0x96, 0xde, 0x07, 0x90, 0xa6, 0x6c, 0xac,
                    0x84, 0x34, 0x26, 0x62, 0x0d, 0xa2, 0xc1, 0xdd, 0xdd, 0xf0, 0x01, 0x72, 0x68,
                    0x6b, 0x29, 0x4f, 0xc3, 0xaa, 0xc0, 0xaa, 0x08, 0xf5, 0x3b, 0x83, 0x04, 0xa5,
                    0x4d, 0x1d, 0x15, 0xa2, 0x64, 0x5e, 0xfa, 0xe0, 0xbc, 0x17, 0x31, 0x31, 0x8e,
                    0xa0, 0x9f, 0xc2, 0xcb, 0x15, 0x66, 0x30, 0xea, 0xa1, 0x31, 0x2d, 0xac, 0xbe,
                    0x5f, 0x3f, 0xcf, 0xa4, 0x8c, 0x7b, 0x21, 0x1a, 0xe4, 0xb4, 0x11, 0xf7, 0xeb,
                    0x25, 0xdf, 0xf8, 0x85, 0xcd, 0xd1, 0xe6, 0x3c, 0xaa, 0x5d, 0xa1, 0x72, 0x39,
                    0x93, 0x26, 0xb0, 0xfd, 0x63, 0x15, 0xca, 0xea, 0xbd, 0xd3, 0x8a, 0x02, 0x99,
                    0x23, 0x5e, 0x3c, 0xe6, 0x24, 0x52, 0x2a, 0x81, 0xe4, 0xc8, 0x65, 0x49, 0x1d,
                    0x50, 0x23, 0x66, 0x3e, 0x7e, 0x94, 0x9f, 0x53, 0xa5, 0x66, 0xde, 0x6a, 0x2f,
                    0x18, 0x48, 0x45, 0x0d, 0x7d, 0x87, 0xb8, 0xa6, 0x00, 0x5d, 0x66, 0xd5, 0x7f,
                    0x8e, 0x9c, 0x12, 0x87, 0x3a, 0x72, 0x98, 0xb8, 0x9e, 0x05, 0x2e, 0x10, 0x6c,
                    0xf7, 0x13, 0x0e, 0xf5, 0xcc, 0x32, 0x9f, 0x8e, 0x5e, 0xb3, 0xa9, 0xb5, 0x6b,
                    0xa0, 0xef, 0xd8, 0xb5, 0x22, 0x94, 0xb8, 0x48, 0x8c, 0x7f, 0xdb, 0x9d, 0xb1,
                    0x57, 0x05, 0x7a, 0x6e, 0x4b, 0x46, 0x89, 0x01, 0x75, 0xae, 0xc8, 0x9c, 0xaf,
                    0x29, 0x7e, 0xfb, 0x3c, 0xc7, 0xa0, 0x76, 0xe8, 0x9f, 0xcd, 0xe0, 0xce, 0xb6,
                    0x5b, 0x57, 0xb9, 0xa9, 0x4a, 0xa4, 0x21, 0xd6, 0x3e, 0x99, 0x5a, 0xf1, 0x74,
                    0xa5, 0xf7, 0xa5, 0xb2, 0xb8, 0x79, 0x81, 0x06, 0x79, 0xdb, 0x30, 0x71, 0x06,
                    0x9d, 0xfc, 0xdb, 0x09, 0x40, 0x29, 0x8e, 0x89, 0x3d, 0xe6, 0x88, 0x01, 0x43,
                    0x8e, 0xf8, 0x4e, 0xa0, 0x1b, 0xd8, 0xd8, 0x7e, 0xc4, 0xce, 0x1f, 0x1e, 0x81,
                    0x4a, 0xb2, 0x7f, 0x43, 0x7b, 0xf5, 0x19, 0x23, 0xe9, 0x46, 0xfd, 0x7a, 0x14,
                    0x25, 0xb9, 0xaa, 0x14, 0x78, 0x16, 0x38, 0x55, 0xdb, 0x12, 0xea, 0xc3, 0xc3,
                    0xb0, 0x21, 0x37, 0x86, 0x9a, 0xe9, 0xd7, 0xd6, 0x53, 0x3c, 0x4e, 0xf1, 0xee,
                    0xb8, 0xbd, 0xda, 0xc5, 0xaf, 0x80, 0x77, 0x8d, 0xf1, 0x7d, 0x7f, 0x3f, 0xdc,
                    0x07, 0xdc, 0xc9, 0x29, 0xc1, 0x9d, 0x38, 0x23, 0x8d, 0x85, 0x3a, 0x53, 0xef,
                    0xd0, 0xd5, 0xb8, 0x2e, 0xe6, 0x28, 0xae, 0x2a, 0x26, 0x8e, 0x9d, 0x64, 0x86,
                    0xb3, 0x0f, 0xe9, 0xb0, 0xc1, 0x99, 0x56, 0x9b, 0x19, 0xe1, 0x9e, 0x26, 0xfa,
                    0x51, 0x60, 0xda, 0x04, 0x2f, 0x4f, 0x7b, 0x68, 0xbf, 0xe5, 0x66, 0x11, 0x3b,
                    0xbf, 0xfd, 0x2d, 0x61, 0x92, 0x7b, 0x19, 0x92, 0x94, 0x06, 0xde, 0xa3, 0xea,
                    0xc3, 0x25, 0x27, 0x17, 0x9b, 0x3b, 0xcc, 0xfe, 0x7e, 0x28, 0x39, 0x0e, 0x0d,
                    0x2e, 0x64, 0xc0, 0x32, 0xa2, 0x6d, 0x3a, 0x69, 0x46, 0xf8, 0x9a, 0x6f, 0x87,
                    0x9b, 0xbf, 0x7a, 0xd7, 0x02, 0x15, 0xa8, 0x3b, 0x17, 0x22, 0x87, 0xdc, 0xf6,
                    0xb8, 0x9b, 0x5e, 0xd3, 0xdd, 0xf3, 0x61, 0x7a, 0x7b, 0x16, 0x0c, 0x5f, 0x6f,
                    0xf6, 0x01, 0xe6, 0x90, 0xbe, 0x2d, 0x94, 0x55, 0xb0, 0x7d, 0x08, 0xf8, 0x67,
                    0x1f, 0x22, 0x57, 0x75, 0xeb, 0xa3, 0x98, 0x9d, 0x3a, 0x0f, 0xce, 0x3f, 0x64,
                    0x83, 0x2d, 0x9c, 0x27, 0xbc, 0x3e, 0xe4, 0xf4, 0x25, 0xd7, 0xc6, 0xba, 0xaa,
                    0xe9, 0xf0, 0xb1, 0xeb, 0xcc, 0x8f, 0xaf, 0x10, 0x26, 0xa3, 0x2c, 0x6c, 0xfe,
                    0x2d, 0xd3, 0x4b, 0xfb, 0x0d, 0x4f, 0x01, 0x4a, 0x34, 0x94, 0x7a, 0x5e, 0xca,
                    0xcf, 0x31, 0x8e, 0x4c, 0x18, 0x64, 0xeb, 0x8c, 0x05, 0x21, 0x5f, 0xdb, 0xe4,
                    0x95, 0xe5, 0x93, 0xb6, 0x32, 0xd7, 0x09, 0x61, 0x4f, 0x26, 0x88, 0x93, 0x2d,
                    0x16, 0xa3, 0xbf, 0x1c, 0x12, 0xb2, 0x6f, 0xfc, 0x03, 0x73, 0x46, 0xb8, 0xe1,
                    0x54, 0x45, 0xbc, 0x34, 0x79, 0x14, 0xd9, 0x6d, 0xf4, 0xa0, 0x22, 0x06, 0x30,
                    0x45, 0x14, 0xe3, 0xe7, 0x2a, 0xae, 0xa4, 0xc2, 0xab, 0x4f, 0x82, 0x02, 0x52,
                    0xe5, 0x28, 0x18, 0x9b, 0x1c, 0x71, 0x66, 0x80, 0x0b, 0x01, 0xc8, 0x55, 0x4b,
                    0x9c, 0xe7, 0xa3, 0xad, 0x87, 0xd2, 0x23, 0x17, 0x0f, 0x85, 0x8d, 0x79, 0x0e,
                    0x59, 0x24, 0xa1, 0xbb, 0x39, 0x88, 0x8f, 0xeb, 0x3c, 0xce, 0x47, 0x98, 0x6d,
                    0xc2, 0xeb, 0xb8, 0xd0, 0x9c, 0x12, 0x63, 0x68, 0x91, 0xa0, 0x03, 0x63, 0x64,
                    0xe9, 0x3a, 0x59, 0x44, 0x2d, 0xe5, 0xdf, 0x7d, 0xd9, 0xad, 0x60, 0x63, 0x7c,
                    0xd4, 0xca, 0x94, 0x94, 0xcd, 0x2d, 0x1e, 0x9c, 0xa6, 0x4b, 0x09, 0xee, 0x87,
                    0x81, 0xfe, 0xa7, 0x27, 0x27, 0xb0, 0xcf, 0xb7, 0x3e, 0x14, 0x62, 0x87, 0xba,
                    0x35, 0x75, 0xe0, 0xf6, 0x33, 0x88, 0x26, 0x15, 0x5f, 0xab, 0x10, 0xb7, 0xd2,
                    0x98, 0x8c, 0xf0, 0x9e, 0x39, 0xd7, 0x73, 0x9e, 0x22, 0x92, 0x56, 0x0a, 0x3b,
                    0x53, 0xa4, 0x18, 0xe8, 0x5f, 0x25, 0x5c, 0x12, 0xa0, 0x54, 0xe3, 0xfb, 0x89,
                    0xad, 0x27, 0xef, 0xd4, 0x56, 0xf4, 0xfc, 0xb5, 0x27, 0xec, 0x99, 0xe3, 0x4b,
                    0xbe, 0x33, 0xea, 0x9a, 0xdc, 0xa2, 0x3a, 0x1a, 0x85, 0xb8, 0xc0, 0x4e, 0xc0,
                    0x0d, 0x44, 0x92, 0xe3, 0xe6, 0x45, 0x0e, 0xe9, 0xbd, 0x19, 0x91, 0xc9, 0x07,
                    0xf3, 0x55, 0xe6, 0x83, 0xb2, 0x42, 0x2f, 0x2c, 0x53, 0xb0, 0x2c, 0xc1, 0x78,
                    0x2c, 0x80, 0xda, 0xfe, 0x5c, 0x46, 0x2a, 0xc1, 0xaa, 0xa8, 0xd8, 0xd2, 0x5c,
                    0x3a, 0x6d, 0xdd, 0xe9, 0x0a, 0xf1, 0xa4, 0x36, 0xec, 0x74, 0xf8, 0xee, 0x28,
                    0x73, 0xf2, 0x01, 0xc9, 0xf2, 0xcd, 0x2a, 0x7b, 0x57, 0x6a, 0x9f, 0x8d, 0xeb,
                    0x74, 0xac, 0xd2, 0x49, 0x88, 0xa8, 0xeb, 0x44, 0x1b, 0xc9, 0x2f, 0xb4, 0x1b,
                    0x62, 0x5c, 0x01, 0xa8, 0x46, 0x96, 0xf4, 0x7c, 0x46, 0x1b, 0x2d, 0xc2, 0x34,
                    0x93, 0x3e, 0x72, 0x03, 0xbe, 0xeb, 0x61, 0x84, 0x65, 0x3d, 0x02, 0x12, 0x90,
                    0x3d, 0xbb, 0x1d, 0xa4, 0x7e, 0xbd, 0x2e, 0x39, 0x4d, 0x6d, 0xe2, 0x5b, 0xf7,
                    0x36, 0x33, 0x85, 0xe8, 0x45, 0xee, 0x42, 0x1f, 0x02, 0x44, 0x66, 0x5d, 0x69,
                    0x60, 0xaf, 0x9f, 0x63, 0xe0, 0x47, 0xd9, 0xfe, 0xff, 0x3d, 0xa0, 0x83, 0xab,
                    0x96, 0x7e, 0xcd, 0xbd, 0x6f, 0x76, 0x7e, 0x65, 0x3a, 0x22, 0x0d, 0x1f, 0xc4,
                    0x10, 0xbc, 0xab, 0x67, 0xd2, 0x27, 0x31, 0xa2, 0x6b, 0x89, 0x75, 0xf5, 0xab,
                    0xaa, 0x32, 0x57, 0x64, 0x9d, 0xc5, 0xd7, 0x0f, 0x76, 0x5c, 0x20, 0x9c, 0x51,
                    0xb4, 0x2e, 0x81, 0x00, 0xd9, 0x41, 0x6f, 0x33, 0xba, 0x0b, 0x14, 0x25, 0xd0,
                    0xc4, 0x00, 0x63, 0x4e, 0x9b, 0xc8, 0x8b, 0x09, 0x93, 0xab, 0x8b, 0x61, 0x50,
                    0x91, 0x6b, 0x59, 0x94, 0xbf, 0xb7, 0x70, 0xc1, 0xd1, 0x5d, 0xff, 0xfc, 0xae,
                    0xe7, 0x59, 0x22, 0x72, 0x3b, 0x2f, 0x4d, 0xc2, 0x47, 0xdf, 0xaa, 0xd0, 0x38,
                    0xf4, 0x99, 0xe7, 0xed, 0x1c, 0x01, 0xb0, 0x51, 0xdd, 0xf1, 0xbc, 0x45, 0xd7,
                    0x01, 0x74, 0x68, 0xb7, 0x50, 0x66, 0x8b, 0xcf, 0xe5, 0x21, 0xa4, 0xb0, 0x06,
                    0x7c, 0x21, 0x33, 0xc4, 0xa3, 0xce, 0xe0, 0xd8, 0x4a, 0x09, 0xd5, 0xb6, 0x0a,
                    0x60, 0xdc, 0x5c, 0x3e, 0x22, 0x3a, 0x94, 0x63, 0x5c, 0x30, 0x54, 0x78, 0x31,
                    0xd2, 0x9b, 0x06, 0x43, 0x58, 0x85, 0x42, 0xdf, 0xab, 0x97, 0x9f, 0x98, 0x66,
                    0x70, 0xc1, 0x43, 0x76, 0xda, 0xf7, 0x73, 0xe9, 0x5d, 0xfe, 0xb3, 0x09, 0x95,
                    0x45, 0xca, 0x9f, 0xbf, 0x3b, 0xa3, 0x0c, 0x0e, 0xae, 0xb4, 0x32, 0x73, 0xdb,
                    0x13, 0x34, 0x88, 0x42, 0xaf, 0x6e, 0xe8, 0x55, 0xbc, 0xb7, 0x8d, 0x64, 0xbb,
                    0xa0, 0xb2, 0x28, 0x3f, 0x17, 0xf0, 0x65, 0x4f, 0x98, 0x3b, 0x9f, 0x20, 0xcd,
                    0xfb, 0x06, 0xeb, 0xe5, 0x95, 0x8d, 0x17, 0x57, 0xc1, 0x09, 0x4b, 0xbf, 0x90,
                    0xbb, 0x04, 0xce, 0xd1, 0xd3, 0x31, 0xeb, 0xff, 0x20, 0xf9, 0xcb, 0xaf, 0x76,
                    0x58, 0x6a, 0x5a, 0x84, 0xaf, 0xc6, 0xed, 0x2d, 0x1b, 0x67, 0xbd, 0xe1, 0x91,
                    0xd3, 0xde, 0x07, 0x56, 0x24, 0xa5, 0xca, 0xbf, 0x23, 0x55, 0x66, 0xe1, 0x98,
                    0x80, 0xec, 0xa7, 0x5f, 0x4a, 0x9d, 0x7a, 0x4e, 0x93, 0x14, 0x3e, 0x44, 0xb2,
                    0xbd, 0x33, 0x35, 0xef, 0x35, 0x17, 0x7f, 0xc7, 0x91, 0xb7, 0x42, 0x39, 0x33,
                    0x51, 0x72, 0xee, 0x0f, 0x2c, 0xf5, 0xc9, 0xed, 0xec, 0x16, 0x89, 0xd7, 0xa4,
                    0x36, 0x1f, 0xe5, 0xb9, 0xf5, 0xe8, 0xba, 0x60, 0x85, 0xf4, 0x2c, 0x25, 0xe7,
                    0x7b, 0x76, 0x20, 0x5a, 0xea, 0x59, 0x86, 0xd1, 0x55, 0x41, 0x20, 0x74, 0xfe,
                    0x7f, 0xda, 0xb2, 0xf3, 0xc2, 0x16, 0xb3, 0xd8, 0xa2, 0xf4, 0x45, 0x18, 0x11,
                    0xfc, 0xc1, 0xc5, 0x32, 0xa5, 0x95, 0x1e, 0x25, 0xcc, 0xdd, 0xf4, 0xc2, 0xe6,
                    0x04, 0xbd, 0x11, 0xee, 0x99, 0x91, 0x59, 0xde, 0x71, 0x7d, 0x9a, 0xac, 0x2c,
                    0xa3, 0x39, 0xe1, 0x81, 0x8f, 0x0a, 0x9c, 0x24, 0x74, 0x2b, 0xb3, 0x94, 0x95,
                    0x72, 0xb9, 0xef, 0xf3, 0x7b, 0xc7, 0xc4, 0x55, 0xd3, 0x2c, 0xf8, 0x6b, 0x31,
                    0x75, 0xbf, 0x2e, 0x36, 0xe0,
                ]
            }
        );

        let mut outbuf = Vec::new();
        senc.encode(&mut outbuf).unwrap();
        assert_eq!(outbuf, ENCODED_SENC);
    }

    #[test]
    fn test_senc_v1() {
        // Probably not useful for real encryption. Like CENC.
        let senc = Senc {
            version: SencBoxVersion::V1,
            use_subsamples: false,
            data: vec![0x00, 0x00, 0x00, 0x00, 0x00, 0x00],
        };
        let mut buf = Vec::new();
        senc.encode(&mut buf).unwrap();
        assert_eq!(
            buf,
            vec![
                0x00, 0x00, 0x00, 0x12, 0x73, 0x65, 0x6e, 0x63, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00,
                0x00, 0x00, 0x00, 0x00
            ]
        );

        let decoded = Senc::decode(&mut buf.as_ref()).unwrap();
        assert_eq!(decoded, senc);
    }

    #[test]
    fn test_senc_v2() {
        let senc = Senc {
            version: SencBoxVersion::V2,
            use_subsamples: false,
            data: vec![0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08],
        };
        let mut buf = Vec::new();
        senc.encode(&mut buf).unwrap();
        assert_eq!(
            buf,
            vec![
                0x00, 0x00, 0x00, 0x14, 0x73, 0x65, 0x6e, 0x63, 0x02, 0x00, 0x00, 0x00, 0x01, 0x02,
                0x03, 0x04, 0x05, 0x06, 0x07, 0x08
            ]
        );

        let decoded = Senc::decode(&mut buf.as_ref()).unwrap();
        assert_eq!(decoded, senc);
    }
}