[nihav.git] / nihav-core / src / register.rs

use std::fmt;

#[derive(Debug,Clone,Copy,PartialEq)]
#[allow(dead_code)]
pub enum CodecType {
    Video,
    Audio,
    Subtitles,
    Data,
    None,
}

impl fmt::Display for CodecType {
    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
        match *self {
            CodecType::Video => write!(f, "Video"),
            CodecType::Audio => write!(f, "Audio"),
            CodecType::Subtitles => write!(f, "Subtitles"),
            CodecType::Data => write!(f, "Data"),
            CodecType::None => write!(f, "-"),
        }
    }
}

const CODEC_CAP_INTRAONLY:u32   = 0x0001;
const CODEC_CAP_LOSSLESS:u32    = 0x0002;
const CODEC_CAP_REORDER:u32     = 0x0004;
const CODEC_CAP_HYBRID:u32      = 0x0008;
const CODEC_CAP_SCALABLE:u32    = 0x0010;

#[derive(Clone)]
pub struct CodecDescription {
    pub name:  &'static str,
    pub fname: &'static str,
    pub ctype: CodecType,
    pub caps:  u32,
}

impl CodecDescription {
    pub fn get_name(&self) -> &'static str { self.name }
    pub fn get_full_name(&self) -> &'static str { self.fname }
    pub fn get_codec_type(&self) -> CodecType { self.ctype }
    pub fn is_intraonly(&self) -> bool { (self.caps & CODEC_CAP_INTRAONLY) != 0 }
    pub fn is_lossless(&self)  -> bool { (self.caps & CODEC_CAP_LOSSLESS)  != 0 }
    pub fn has_reorder(&self)  -> bool { (self.caps & CODEC_CAP_REORDER)   != 0 }
    pub fn is_hybrid(&self)    -> bool { (self.caps & CODEC_CAP_HYBRID)    != 0 }
    pub fn is_scalable(&self)  -> bool { (self.caps & CODEC_CAP_SCALABLE)  != 0 }
}

impl fmt::Display for CodecDescription {
    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
        let mut out = self.fname.to_string();
        if self.caps != 0 {
            let mut capfmt = "".to_string();
            if (self.caps & CODEC_CAP_INTRAONLY) != 0 {
                capfmt = format!("{} Intra-only", capfmt);
            }
            if (self.caps & CODEC_CAP_LOSSLESS) != 0 {
                capfmt = format!("{} Lossless", capfmt);
            }
            if (self.caps & CODEC_CAP_REORDER) != 0 {
                capfmt = format!("{} Frame reorder", capfmt);
            }
            if (self.caps & CODEC_CAP_HYBRID) != 0 {
                capfmt = format!("{} Can be lossy and lossless", capfmt);
            }
            if (self.caps & CODEC_CAP_SCALABLE) != 0 {
                capfmt = format!("{} Scalable", capfmt);
            }
            out = format!("{} ({})", out, capfmt);
        }
        write!(f, "{}", out)
    }
}

macro_rules! desc {
    (video; $n:expr, $fn:expr) => ({
        CodecDescription{ name: $n, fname: $fn, ctype: CodecType::Video,
                          caps: 0 }
    });
    (video; $n:expr, $fn:expr, $c:expr) => ({
        CodecDescription{ name: $n, fname: $fn, ctype: CodecType::Video,
                          caps: $c }
    });
    (video-ll; $n:expr, $fn:expr) => ({
        CodecDescription{ name: $n, fname: $fn, ctype: CodecType::Video,
                          caps: CODEC_CAP_LOSSLESS | CODEC_CAP_INTRAONLY }
    });
    (video-llp; $n:expr, $fn:expr) => ({
        CodecDescription{ name: $n, fname: $fn, ctype: CodecType::Video,
                          caps: CODEC_CAP_LOSSLESS }
    });
    (video-im; $n:expr, $fn:expr) => ({
        CodecDescription{ name: $n, fname: $fn, ctype: CodecType::Video,
                          caps: CODEC_CAP_INTRAONLY }
    });
    (video-modern; $n:expr, $fn:expr) => ({
        CodecDescription{ name: $n, fname: $fn, ctype: CodecType::Video,
                          caps: CODEC_CAP_REORDER | CODEC_CAP_HYBRID }
    });
    (audio; $n:expr, $fn:expr) => ({
        CodecDescription{ name: $n, fname: $fn, ctype: CodecType::Audio,
                          caps: 0 }
    });
    (audio-ll; $n:expr, $fn:expr) => ({
        CodecDescription{ name: $n, fname: $fn, ctype: CodecType::Audio,
                          caps: CODEC_CAP_LOSSLESS | CODEC_CAP_INTRAONLY }
    });
}

pub fn get_codec_description(name: &str) -> Option<&'static CodecDescription> {
    for reg in CODEC_REGISTER {
        if reg.name == name {
            return Some(reg);
        }
    }
    None
}

static CODEC_REGISTER: &'static [CodecDescription] = &[
    desc!(audio-ll; "pcm", "PCM"),

    desc!(video-im; "indeo1", "Intel Raw IF09"),
    desc!(video-im; "indeo2", "Intel Indeo 2"),
    desc!(video;    "indeo3", "Intel Indeo 3"),
    desc!(video;    "indeo4", "Intel Indeo 4", CODEC_CAP_REORDER | CODEC_CAP_SCALABLE),
    desc!(video;    "indeo5", "Intel Indeo 5", CODEC_CAP_REORDER | CODEC_CAP_SCALABLE),
    desc!(video;    "intel263", "Intel I263", CODEC_CAP_REORDER),
    desc!(audio;    "iac",    "Intel Indeo audio"),
    desc!(audio;    "imc",    "Intel Music Coder"),

    desc!(video;    "realvideo1", "Real Video 1"),
    desc!(video;    "realvideo2", "Real Video 2"),
    desc!(video;    "realvideo3", "Real Video 3", CODEC_CAP_REORDER),
    desc!(video;    "realvideo4", "Real Video 4", CODEC_CAP_REORDER),
    desc!(video;    "realvideo6", "Real Video 6", CODEC_CAP_REORDER),
    desc!(video;    "clearvideo", "ClearVideo"),
    desc!(video;    "clearvideo_rm", "ClearVideo"),
    desc!(audio;    "ra14.4",     "RealAudio 14.4"),
    desc!(audio;    "ra28.8",     "RealAudio 28.8"),
    desc!(audio;    "cook",       "RealAudio Cooker"),
    desc!(audio;    "ralf",       "RealAudio Lossless"),
    desc!(audio;    "aac",        "AAC"),
    desc!(audio;    "ac3",        "ETSI TS 102 366"),
    desc!(audio;    "atrac3",     "Sony Atrac3"),
    desc!(audio;    "sipro",      "Sipro Labs ADPCM"),

    desc!(video;    "truemotion1",   "TrueMotion 1"),
    desc!(video-im; "truemotionrt",  "TrueMotion RT"),
    desc!(video;    "truemotion2",   "TrueMotion 2"),
    desc!(video;    "truemotion2x",  "TrueMotion 2X"),
    desc!(video;    "vp3",           "VP3"),
    desc!(video;    "vp4",           "VP4"),
    desc!(video;    "vp5",           "VP5"),
    desc!(video;    "vp6",           "VP6"),
    desc!(video;    "vp6a",          "VP6"),
    desc!(video;    "vp7",           "VP7"),
    desc!(video;    "vp8",           "VP8"),
    desc!(video;    "vp9",           "VP9"),
    desc!(audio;    "adpcm-dk3",     "Duck DK3 ADPCM"),
    desc!(audio;    "adpcm-dk4",     "Duck DK4 ADPCM"),
    desc!(audio;    "on2avc-500",    "On2 AVC"),
    desc!(audio;    "on2avc-501",    "On2 AVC"),

    desc!(video;    "gdv-video",     "Gremlin Digital Video - video"),
    desc!(audio;    "gdv-audio",     "Gremlin Digital Video - audio"),
    desc!(video;    "bmv-video",     "BMV video"),
    desc!(audio;    "bmv-audio",     "BMV audio"),
    desc!(video;    "bmv3-video",    "DW Noir BMV video"),
    desc!(audio;    "bmv3-audio",    "DW Noir BMV audio"),
    desc!(video;    "midivid",       "MidiVid"),
    desc!(video;    "midivid3",      "MidiVid 3"),
    desc!(video-ll; "midivid-ll",    "MidiVid Lossless"),
    desc!(video;    "vmd-video",     "VMD video"),
    desc!(audio;    "vmd-audio",     "VMD audio"),

    desc!(video;    "smacker-video", "Smacker video"),
    desc!(audio;    "smacker-audio", "Smacker audio"),
    desc!(video;    "bink-video",    "Bink video"),
    desc!(video;    "bink2-video",   "Bink2 video"),
    desc!(audio;    "bink-audio-dct",   "Bink audio (DCT)"),
    desc!(audio;    "bink-audio-rdft",  "Bink audio (RDFT)"),
];

static AVI_VIDEO_CODEC_REGISTER: &'static [(&[u8;4], &str)] = &[
    (b"IF09", "indeo1"),
    (b"RT21", "indeo2"),
    (b"IV31", "indeo3"),
    (b"IV32", "indeo3"),
    (b"IV41", "indeo4"),
    (b"IV50", "indeo5"),
    (b"I263", "intel263"),

    (b"UCOD", "clearvideo"),

    (b"MVDV", "midivid"),
    (b"MV30", "midivid3"),
    (b"MVLZ", "midivid-ll"),

    (b"DUCK", "truemotion1"),
    (b"TR20", "truemotionrt"),
    (b"TM20", "truemotion2"),
    (b"TM2A", "truemotion2x"),
    (b"TM2X", "truemotion2x"),
    (b"VP30", "vp3"),
    (b"VP31", "vp3"),
    (b"VP40", "vp4"),
    (b"VP50", "vp5"),
    (b"VP60", "vp6"),
    (b"VP61", "vp6"),
    (b"VP62", "vp6"),
    (b"VP6A", "vp6a"),
    (b"VP70", "vp7"),
];

static WAV_CODEC_REGISTER: &'static [(u16, &str)] = &[
    (0x0000, "pcm"),
    (0x0001, "pcm"),
    (0x0003, "pcm"),
    (0x0061, "adpcm-dk4"),
    (0x0062, "adpcm-dk3"),
    (0x0401, "imc"),
    (0x0402, "iac"),
    (0x0500, "on2avc-500"),
    (0x0501, "on2avc-501"),
];

pub fn find_codec_from_avi_fourcc(fcc: &[u8;4]) -> Option<&'static str> {
    for (fourcc, name) in AVI_VIDEO_CODEC_REGISTER.iter() {
        if *fourcc == fcc { return Some(name); }
    }
    None
}

pub fn find_codec_from_wav_twocc(tcc: u16) -> Option<&'static str> {
    for (twocc, name) in WAV_CODEC_REGISTER.iter() {
        if *twocc == tcc { return Some(name); }
    }
    None
}

#[cfg(test)]
mod test {
    use super::*;

    #[test]
    fn test_register() {
        let c1 = find_codec_from_avi_fourcc(b"IV41").unwrap();
        let c2 = find_codec_from_wav_twocc(0x401).unwrap();
        println!("found {} and {}", c1, c2);
        let cd1 = get_codec_description(c1).unwrap();
        let cd2 = get_codec_description(c2).unwrap();
        println!("got {} and {}", cd1, cd2);
    }
}
Commit	Line	Data
d48ee414 KS	1	use std::fmt;
d48ee414 KS	2
34829caa	3	#[derive(Debug,Clone,Copy,PartialEq)]
d48ee414 KS	4	#[allow(dead_code)]
	5	pub enum CodecType {
	6	Video,
	7	Audio,
	8	Subtitles,
	9	Data,
	10	None,
	11	}
	12
	13	impl fmt::Display for CodecType {
	14	fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
	15	match *self {
	16	CodecType::Video => write!(f, "Video"),
	17	CodecType::Audio => write!(f, "Audio"),
	18	CodecType::Subtitles => write!(f, "Subtitles"),
	19	CodecType::Data => write!(f, "Data"),
	20	CodecType::None => write!(f, "-"),
	21	}
	22	}
	23	}
	24
e243ceb4 KS	25	const CODEC_CAP_INTRAONLY:u32 = 0x0001;
	26	const CODEC_CAP_LOSSLESS:u32 = 0x0002;
	27	const CODEC_CAP_REORDER:u32 = 0x0004;
	28	const CODEC_CAP_HYBRID:u32 = 0x0008;
	29	const CODEC_CAP_SCALABLE:u32 = 0x0010;
d48ee414	30
34829caa	31	#[derive(Clone)]
d48ee414	32	pub struct CodecDescription {
5641dccf KS	33	pub name: &'static str,
	34	pub fname: &'static str,
	35	pub ctype: CodecType,
	36	pub caps: u32,
d48ee414 KS	37	}
	38
	39	impl CodecDescription {
	40	pub fn get_name(&self) -> &'static str { self.name }
	41	pub fn get_full_name(&self) -> &'static str { self.fname }
	42	pub fn get_codec_type(&self) -> CodecType { self.ctype }
	43	pub fn is_intraonly(&self) -> bool { (self.caps & CODEC_CAP_INTRAONLY) != 0 }
	44	pub fn is_lossless(&self) -> bool { (self.caps & CODEC_CAP_LOSSLESS) != 0 }
	45	pub fn has_reorder(&self) -> bool { (self.caps & CODEC_CAP_REORDER) != 0 }
	46	pub fn is_hybrid(&self) -> bool { (self.caps & CODEC_CAP_HYBRID) != 0 }
	47	pub fn is_scalable(&self) -> bool { (self.caps & CODEC_CAP_SCALABLE) != 0 }
	48	}
	49
	50	impl fmt::Display for CodecDescription {
	51	fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
e243ceb4	52	let mut out = self.fname.to_string();
d48ee414 KS	53	if self.caps != 0 {
	54	let mut capfmt = "".to_string();
	55	if (self.caps & CODEC_CAP_INTRAONLY) != 0 {
	56	capfmt = format!("{} Intra-only", capfmt);
	57	}
	58	if (self.caps & CODEC_CAP_LOSSLESS) != 0 {
	59	capfmt = format!("{} Lossless", capfmt);
	60	}
	61	if (self.caps & CODEC_CAP_REORDER) != 0 {
	62	capfmt = format!("{} Frame reorder", capfmt);
	63	}
	64	if (self.caps & CODEC_CAP_HYBRID) != 0 {
	65	capfmt = format!("{} Can be lossy and lossless", capfmt);
	66	}
	67	if (self.caps & CODEC_CAP_SCALABLE) != 0 {
	68	capfmt = format!("{} Scalable", capfmt);
	69	}
	70	out = format!("{} ({})", out, capfmt);
	71	}
	72	write!(f, "{}", out)
	73	}
	74	}
	75
	76	macro_rules! desc {
	77	(video; $n:expr, $fn:expr) => ({
	78	CodecDescription{ name: $n, fname: $fn, ctype: CodecType::Video,
	79	caps: 0 }
	80	});
	81	(video; $n:expr, $fn:expr, $c:expr) => ({
	82	CodecDescription{ name: $n, fname: $fn, ctype: CodecType::Video,
	83	caps: $c }
	84	});
	85	(video-ll; $n:expr, $fn:expr) => ({
	86	CodecDescription{ name: $n, fname: $fn, ctype: CodecType::Video,
	87	caps: CODEC_CAP_LOSSLESS \| CODEC_CAP_INTRAONLY }
	88	});
	89	(video-llp; $n:expr, $fn:expr) => ({
	90	CodecDescription{ name: $n, fname: $fn, ctype: CodecType::Video,
	91	caps: CODEC_CAP_LOSSLESS }
	92	});
	93	(video-im; $n:expr, $fn:expr) => ({
	94	CodecDescription{ name: $n, fname: $fn, ctype: CodecType::Video,
	95	caps: CODEC_CAP_INTRAONLY }
	96	});
	97	(video-modern; $n:expr, $fn:expr) => ({
	98	CodecDescription{ name: $n, fname: $fn, ctype: CodecType::Video,
	99	caps: CODEC_CAP_REORDER \| CODEC_CAP_HYBRID }
	100	});
	101	(audio; $n:expr, $fn:expr) => ({
	102	CodecDescription{ name: $n, fname: $fn, ctype: CodecType::Audio,
	103	caps: 0 }
	104	});
	105	(audio-ll; $n:expr, $fn:expr) => ({
	106	CodecDescription{ name: $n, fname: $fn, ctype: CodecType::Audio,
	107	caps: CODEC_CAP_LOSSLESS \| CODEC_CAP_INTRAONLY }
	108	});
	109	}
	110
	111	pub fn get_codec_description(name: &str) -> Option<&'static CodecDescription> {
34829caa KS	112	for reg in CODEC_REGISTER {
	113	if reg.name == name {
	114	return Some(reg);
d48ee414 KS	115	}
	116	}
	117	None
	118	}
	119
	120	static CODEC_REGISTER: &'static [CodecDescription] = &[
e8e022f4 KS	121	desc!(audio-ll; "pcm", "PCM"),
e8e022f4 KS	122
45e794c4 KS	123	desc!(video-im; "indeo1", "Intel Raw IF09"),
	124	desc!(video-im; "indeo2", "Intel Indeo 2"),
	125	desc!(video; "indeo3", "Intel Indeo 3"),
	126	desc!(video; "indeo4", "Intel Indeo 4", CODEC_CAP_REORDER \| CODEC_CAP_SCALABLE),
	127	desc!(video; "indeo5", "Intel Indeo 5", CODEC_CAP_REORDER \| CODEC_CAP_SCALABLE),
1a36a05d	128	desc!(video; "intel263", "Intel I263", CODEC_CAP_REORDER),
45e794c4 KS	129	desc!(audio; "iac", "Intel Indeo audio"),
45e794c4 KS	130	desc!(audio; "imc", "Intel Music Coder"),
ce52b3b5 KS	131
	132	desc!(video; "realvideo1", "Real Video 1"),
	133	desc!(video; "realvideo2", "Real Video 2"),
	134	desc!(video; "realvideo3", "Real Video 3", CODEC_CAP_REORDER),
	135	desc!(video; "realvideo4", "Real Video 4", CODEC_CAP_REORDER),
0b791d5c	136	desc!(video; "realvideo6", "Real Video 6", CODEC_CAP_REORDER),
ce52b3b5	137	desc!(video; "clearvideo", "ClearVideo"),
750b299c	138	desc!(video; "clearvideo_rm", "ClearVideo"),
ce52b3b5 KS	139	desc!(audio; "ra14.4", "RealAudio 14.4"),
	140	desc!(audio; "ra28.8", "RealAudio 28.8"),
	141	desc!(audio; "cook", "RealAudio Cooker"),
	142	desc!(audio; "ralf", "RealAudio Lossless"),
	143	desc!(audio; "aac", "AAC"),
16dd4f44	144	desc!(audio; "ac3", "ETSI TS 102 366"),
ce52b3b5 KS	145	desc!(audio; "atrac3", "Sony Atrac3"),
ce52b3b5 KS	146	desc!(audio; "sipro", "Sipro Labs ADPCM"),
e8e022f4	147
d24468d9 KS	148	desc!(video; "truemotion1", "TrueMotion 1"),
	149	desc!(video-im; "truemotionrt", "TrueMotion RT"),
	150	desc!(video; "truemotion2", "TrueMotion 2"),
e8e022f4 KS	151	desc!(video; "truemotion2x", "TrueMotion 2X"),
	152	desc!(video; "vp3", "VP3"),
	153	desc!(video; "vp4", "VP4"),
	154	desc!(video; "vp5", "VP5"),
	155	desc!(video; "vp6", "VP6"),
629a1025	156	desc!(video; "vp6a", "VP6"),
e8e022f4 KS	157	desc!(video; "vp7", "VP7"),
	158	desc!(video; "vp8", "VP8"),
	159	desc!(video; "vp9", "VP9"),
	160	desc!(audio; "adpcm-dk3", "Duck DK3 ADPCM"),
	161	desc!(audio; "adpcm-dk4", "Duck DK4 ADPCM"),
629a1025 KS	162	desc!(audio; "on2avc-500", "On2 AVC"),
629a1025 KS	163	desc!(audio; "on2avc-501", "On2 AVC"),
e8e022f4 KS	164
	165	desc!(video; "gdv-video", "Gremlin Digital Video - video"),
	166	desc!(audio; "gdv-audio", "Gremlin Digital Video - audio"),
	167	desc!(video; "bmv-video", "BMV video"),
	168	desc!(audio; "bmv-audio", "BMV audio"),
ecda1cc1 KS	169	desc!(video; "bmv3-video", "DW Noir BMV video"),
ecda1cc1 KS	170	desc!(audio; "bmv3-audio", "DW Noir BMV audio"),
801bba83 KS	171	desc!(video; "midivid", "MidiVid"),
	172	desc!(video; "midivid3", "MidiVid 3"),
	173	desc!(video-ll; "midivid-ll", "MidiVid Lossless"),
9895bd7b KS	174	desc!(video; "vmd-video", "VMD video"),
9895bd7b KS	175	desc!(audio; "vmd-audio", "VMD audio"),
e8e022f4 KS	176
	177	desc!(video; "smacker-video", "Smacker video"),
	178	desc!(audio; "smacker-audio", "Smacker audio"),
	179	desc!(video; "bink-video", "Bink video"),
	180	desc!(video; "bink2-video", "Bink2 video"),
	181	desc!(audio; "bink-audio-dct", "Bink audio (DCT)"),
	182	desc!(audio; "bink-audio-rdft", "Bink audio (RDFT)"),
d48ee414 KS	183	];
	184
	185	static AVI_VIDEO_CODEC_REGISTER: &'static [(&[u8;4], &str)] = &[
45e794c4 KS	186	(b"IF09", "indeo1"),
	187	(b"RT21", "indeo2"),
	188	(b"IV31", "indeo3"),
	189	(b"IV32", "indeo3"),
	190	(b"IV41", "indeo4"),
	191	(b"IV50", "indeo5"),
836bf150	192	(b"I263", "intel263"),
ce52b3b5	193
750b299c	194	(b"UCOD", "clearvideo"),
b2d656d0	195
801bba83 KS	196	(b"MVDV", "midivid"),
	197	(b"MV30", "midivid3"),
	198	(b"MVLZ", "midivid-ll"),
	199
b2d656d0 KS	200	(b"DUCK", "truemotion1"),
	201	(b"TR20", "truemotionrt"),
	202	(b"TM20", "truemotion2"),
	203	(b"TM2A", "truemotion2x"),
	204	(b"TM2X", "truemotion2x"),
40e95291 KS	205	(b"VP30", "vp3"),
	206	(b"VP31", "vp3"),
	207	(b"VP40", "vp4"),
	208	(b"VP50", "vp5"),
	209	(b"VP60", "vp6"),
	210	(b"VP61", "vp6"),
	211	(b"VP62", "vp6"),
1bf8e0fc	212	(b"VP6A", "vp6a"),
40e95291	213	(b"VP70", "vp7"),
d48ee414 KS	214	];
	215
	216	static WAV_CODEC_REGISTER: &'static [(u16, &str)] = &[
45e794c4 KS	217	(0x0000, "pcm"),
	218	(0x0001, "pcm"),
	219	(0x0003, "pcm"),
fadee95f KS	220	(0x0061, "adpcm-dk4"),
fadee95f KS	221	(0x0062, "adpcm-dk3"),
45e794c4 KS	222	(0x0401, "imc"),
45e794c4 KS	223	(0x0402, "iac"),
a38be6e4 KS	224	(0x0500, "on2avc-500"),
a38be6e4 KS	225	(0x0501, "on2avc-501"),
d48ee414 KS	226	];
	227
	228	pub fn find_codec_from_avi_fourcc(fcc: &[u8;4]) -> Option<&'static str> {
e243ceb4 KS	229	for (fourcc, name) in AVI_VIDEO_CODEC_REGISTER.iter() {
e243ceb4 KS	230	if *fourcc == fcc { return Some(name); }
d48ee414 KS	231	}
	232	None
	233	}
	234
	235	pub fn find_codec_from_wav_twocc(tcc: u16) -> Option<&'static str> {
e243ceb4 KS	236	for (twocc, name) in WAV_CODEC_REGISTER.iter() {
e243ceb4 KS	237	if *twocc == tcc { return Some(name); }
d48ee414 KS	238	}
	239	None
	240	}
	241
	242	#[cfg(test)]
	243	mod test {
	244	use super::*;
	245
	246	#[test]
	247	fn test_register() {
	248	let c1 = find_codec_from_avi_fourcc(b"IV41").unwrap();
	249	let c2 = find_codec_from_wav_twocc(0x401).unwrap();
	250	println!("found {} and {}", c1, c2);
	251	let cd1 = get_codec_description(c1).unwrap();
	252	let cd2 = get_codec_description(c2).unwrap();
	253	println!("got {} and {}", cd1, cd2);
	254	}
b58d7656	255	}