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

//! Global registry of codec information.
//!
//! This module contains codec information from technical level that allows user to retrieve information about codec type and features without creating and invoking a decoder for such codec.
use std::fmt;

/// Codec types.
#[derive(Debug,Clone,Copy,PartialEq)]
#[allow(dead_code)]
pub enum CodecType {
    /// Video codec.
    Video,
    /// Audio codec.
    Audio,
    /// Subtitle codec.
    Subtitles,
    /// Some special codec (e.g. some event stream or separate timecodes stream).
    Data,
    /// Dummy codec.
    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;

/// Codec description structure.
#[derive(Clone)]
pub struct CodecDescription {
    /// Short codec name.
    ///
    /// Short codec name is used inside NihAV as the unique identifier.
    pub name:  &'static str,
    /// Full codec name.
    pub fname: &'static str,
    /// Codec type.
    pub ctype: CodecType,
    /// Codec capabilities.
    pub caps:  u32,
}

impl CodecDescription {
    /// Returns short codec name.
    pub fn get_name(&self) -> &'static str { self.name }
    /// Returns full codec name.
    pub fn get_full_name(&self) -> &'static str { self.fname }
    /// Returns codec type.
    pub fn get_codec_type(&self) -> CodecType { self.ctype }
    /// Reports whether the codec has only intra frames or not.
    pub fn is_intraonly(&self) -> bool { (self.caps & CODEC_CAP_INTRAONLY) != 0 }
    /// Reports whether the codec is lossless.
    pub fn is_lossless(&self)  -> bool { (self.caps & CODEC_CAP_LOSSLESS)  != 0 }
    /// Reports whether the codec requires frame reordering.
    pub fn has_reorder(&self)  -> bool { (self.caps & CODEC_CAP_REORDER)   != 0 }
    /// Reports whether the codec can be either lossless or lossy.
    pub fn is_hybrid(&self)    -> bool { (self.caps & CODEC_CAP_HYBRID)    != 0 }
    /// Reports whether codec supports scalability.
    ///
    /// Scalability means that codec can be decoded in reduced resolution by design.
    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 }
    });
}

/// Returns codec description for the provided codec short name if it is found.
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", CODEC_CAP_REORDER),
    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)"),

    desc!(audio;    "lhst15f8",      "L&H StreamTalk 15kbps at 8 kHz"),
    desc!(audio;    "lhst250f11",    "L&H StreamTalk 25kbps at 11 kHz"),
    desc!(audio;    "lhst500f22",    "L&H StreamTalk 50kpbs at 22 kHz"),
    desc!(audio;    "lhst48",        "L&H StreamTalk CELP Codec 4.8kbps at 8 kHz"),
];

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"),
];

/// Returns video codec short name for provided FOURCC (used in AVI format).
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
}

/// Returns known audio codec short name for provided TWOCC (used in WAV and AVI format).
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
285f4c72 KS	1	//! Global registry of codec information.
	2	//!
	3	//! This module contains codec information from technical level that allows user to retrieve information about codec type and features without creating and invoking a decoder for such codec.
d48ee414 KS	4	use std::fmt;
d48ee414 KS	5
285f4c72	6	/// Codec types.
34829caa	7	#[derive(Debug,Clone,Copy,PartialEq)]
d48ee414 KS	8	#[allow(dead_code)]
d48ee414 KS	9	pub enum CodecType {
285f4c72	10	/// Video codec.
d48ee414	11	Video,
285f4c72	12	/// Audio codec.
d48ee414	13	Audio,
285f4c72	14	/// Subtitle codec.
d48ee414	15	Subtitles,
285f4c72	16	/// Some special codec (e.g. some event stream or separate timecodes stream).
d48ee414	17	Data,
285f4c72	18	/// Dummy codec.
d48ee414 KS	19	None,
	20	}
	21
	22	impl fmt::Display for CodecType {
	23	fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
	24	match *self {
	25	CodecType::Video => write!(f, "Video"),
	26	CodecType::Audio => write!(f, "Audio"),
	27	CodecType::Subtitles => write!(f, "Subtitles"),
	28	CodecType::Data => write!(f, "Data"),
	29	CodecType::None => write!(f, "-"),
	30	}
	31	}
	32	}
	33
e243ceb4 KS	34	const CODEC_CAP_INTRAONLY:u32 = 0x0001;
	35	const CODEC_CAP_LOSSLESS:u32 = 0x0002;
	36	const CODEC_CAP_REORDER:u32 = 0x0004;
	37	const CODEC_CAP_HYBRID:u32 = 0x0008;
	38	const CODEC_CAP_SCALABLE:u32 = 0x0010;
d48ee414	39
285f4c72	40	/// Codec description structure.
34829caa	41	#[derive(Clone)]
d48ee414	42	pub struct CodecDescription {
285f4c72 KS	43	/// Short codec name.
	44	///
	45	/// Short codec name is used inside NihAV as the unique identifier.
5641dccf	46	pub name: &'static str,
285f4c72	47	/// Full codec name.
5641dccf	48	pub fname: &'static str,
285f4c72	49	/// Codec type.
5641dccf	50	pub ctype: CodecType,
285f4c72	51	/// Codec capabilities.
5641dccf	52	pub caps: u32,
d48ee414 KS	53	}
	54
	55	impl CodecDescription {
285f4c72	56	/// Returns short codec name.
d48ee414	57	pub fn get_name(&self) -> &'static str { self.name }
285f4c72	58	/// Returns full codec name.
d48ee414	59	pub fn get_full_name(&self) -> &'static str { self.fname }
285f4c72	60	/// Returns codec type.
d48ee414	61	pub fn get_codec_type(&self) -> CodecType { self.ctype }
285f4c72	62	/// Reports whether the codec has only intra frames or not.
d48ee414	63	pub fn is_intraonly(&self) -> bool { (self.caps & CODEC_CAP_INTRAONLY) != 0 }
285f4c72	64	/// Reports whether the codec is lossless.
d48ee414	65	pub fn is_lossless(&self) -> bool { (self.caps & CODEC_CAP_LOSSLESS) != 0 }
285f4c72	66	/// Reports whether the codec requires frame reordering.
d48ee414	67	pub fn has_reorder(&self) -> bool { (self.caps & CODEC_CAP_REORDER) != 0 }
285f4c72	68	/// Reports whether the codec can be either lossless or lossy.
d48ee414	69	pub fn is_hybrid(&self) -> bool { (self.caps & CODEC_CAP_HYBRID) != 0 }
285f4c72 KS	70	/// Reports whether codec supports scalability.
	71	///
	72	/// Scalability means that codec can be decoded in reduced resolution by design.
d48ee414 KS	73	pub fn is_scalable(&self) -> bool { (self.caps & CODEC_CAP_SCALABLE) != 0 }
	74	}
	75
	76	impl fmt::Display for CodecDescription {
	77	fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
e243ceb4	78	let mut out = self.fname.to_string();
d48ee414 KS	79	if self.caps != 0 {
	80	let mut capfmt = "".to_string();
	81	if (self.caps & CODEC_CAP_INTRAONLY) != 0 {
	82	capfmt = format!("{} Intra-only", capfmt);
	83	}
	84	if (self.caps & CODEC_CAP_LOSSLESS) != 0 {
	85	capfmt = format!("{} Lossless", capfmt);
	86	}
	87	if (self.caps & CODEC_CAP_REORDER) != 0 {
	88	capfmt = format!("{} Frame reorder", capfmt);
	89	}
	90	if (self.caps & CODEC_CAP_HYBRID) != 0 {
	91	capfmt = format!("{} Can be lossy and lossless", capfmt);
	92	}
	93	if (self.caps & CODEC_CAP_SCALABLE) != 0 {
	94	capfmt = format!("{} Scalable", capfmt);
	95	}
	96	out = format!("{} ({})", out, capfmt);
	97	}
	98	write!(f, "{}", out)
	99	}
	100	}
	101
	102	macro_rules! desc {
	103	(video; $n:expr, $fn:expr) => ({
	104	CodecDescription{ name: $n, fname: $fn, ctype: CodecType::Video,
	105	caps: 0 }
	106	});
	107	(video; $n:expr, $fn:expr, $c:expr) => ({
	108	CodecDescription{ name: $n, fname: $fn, ctype: CodecType::Video,
	109	caps: $c }
	110	});
	111	(video-ll; $n:expr, $fn:expr) => ({
	112	CodecDescription{ name: $n, fname: $fn, ctype: CodecType::Video,
	113	caps: CODEC_CAP_LOSSLESS \| CODEC_CAP_INTRAONLY }
	114	});
	115	(video-llp; $n:expr, $fn:expr) => ({
	116	CodecDescription{ name: $n, fname: $fn, ctype: CodecType::Video,
	117	caps: CODEC_CAP_LOSSLESS }
	118	});
	119	(video-im; $n:expr, $fn:expr) => ({
	120	CodecDescription{ name: $n, fname: $fn, ctype: CodecType::Video,
	121	caps: CODEC_CAP_INTRAONLY }
	122	});
	123	(video-modern; $n:expr, $fn:expr) => ({
	124	CodecDescription{ name: $n, fname: $fn, ctype: CodecType::Video,
	125	caps: CODEC_CAP_REORDER \| CODEC_CAP_HYBRID }
	126	});
	127	(audio; $n:expr, $fn:expr) => ({
	128	CodecDescription{ name: $n, fname: $fn, ctype: CodecType::Audio,
	129	caps: 0 }
	130	});
	131	(audio-ll; $n:expr, $fn:expr) => ({
	132	CodecDescription{ name: $n, fname: $fn, ctype: CodecType::Audio,
	133	caps: CODEC_CAP_LOSSLESS \| CODEC_CAP_INTRAONLY }
	134	});
	135	}
	136
285f4c72	137	/// Returns codec description for the provided codec short name if it is found.
d48ee414	138	pub fn get_codec_description(name: &str) -> Option<&'static CodecDescription> {
34829caa KS	139	for reg in CODEC_REGISTER {
	140	if reg.name == name {
	141	return Some(reg);
d48ee414 KS	142	}
	143	}
	144	None
	145	}
	146
	147	static CODEC_REGISTER: &'static [CodecDescription] = &[
e8e022f4 KS	148	desc!(audio-ll; "pcm", "PCM"),
e8e022f4 KS	149
45e794c4 KS	150	desc!(video-im; "indeo1", "Intel Raw IF09"),
	151	desc!(video-im; "indeo2", "Intel Indeo 2"),
	152	desc!(video; "indeo3", "Intel Indeo 3"),
	153	desc!(video; "indeo4", "Intel Indeo 4", CODEC_CAP_REORDER \| CODEC_CAP_SCALABLE),
	154	desc!(video; "indeo5", "Intel Indeo 5", CODEC_CAP_REORDER \| CODEC_CAP_SCALABLE),
1a36a05d	155	desc!(video; "intel263", "Intel I263", CODEC_CAP_REORDER),
45e794c4 KS	156	desc!(audio; "iac", "Intel Indeo audio"),
45e794c4 KS	157	desc!(audio; "imc", "Intel Music Coder"),
ce52b3b5 KS	158
ce52b3b5 KS	159	desc!(video; "realvideo1", "Real Video 1"),
6b2cdc84	160	desc!(video; "realvideo2", "Real Video 2", CODEC_CAP_REORDER),
ce52b3b5 KS	161	desc!(video; "realvideo3", "Real Video 3", CODEC_CAP_REORDER),
ce52b3b5 KS	162	desc!(video; "realvideo4", "Real Video 4", CODEC_CAP_REORDER),
0b791d5c	163	desc!(video; "realvideo6", "Real Video 6", CODEC_CAP_REORDER),
ce52b3b5	164	desc!(video; "clearvideo", "ClearVideo"),
750b299c	165	desc!(video; "clearvideo_rm", "ClearVideo"),
ce52b3b5 KS	166	desc!(audio; "ra14.4", "RealAudio 14.4"),
	167	desc!(audio; "ra28.8", "RealAudio 28.8"),
	168	desc!(audio; "cook", "RealAudio Cooker"),
	169	desc!(audio; "ralf", "RealAudio Lossless"),
	170	desc!(audio; "aac", "AAC"),
16dd4f44	171	desc!(audio; "ac3", "ETSI TS 102 366"),
ce52b3b5 KS	172	desc!(audio; "atrac3", "Sony Atrac3"),
ce52b3b5 KS	173	desc!(audio; "sipro", "Sipro Labs ADPCM"),
e8e022f4	174
d24468d9 KS	175	desc!(video; "truemotion1", "TrueMotion 1"),
	176	desc!(video-im; "truemotionrt", "TrueMotion RT"),
	177	desc!(video; "truemotion2", "TrueMotion 2"),
e8e022f4 KS	178	desc!(video; "truemotion2x", "TrueMotion 2X"),
	179	desc!(video; "vp3", "VP3"),
	180	desc!(video; "vp4", "VP4"),
	181	desc!(video; "vp5", "VP5"),
	182	desc!(video; "vp6", "VP6"),
629a1025	183	desc!(video; "vp6a", "VP6"),
e8e022f4 KS	184	desc!(video; "vp7", "VP7"),
	185	desc!(video; "vp8", "VP8"),
	186	desc!(video; "vp9", "VP9"),
	187	desc!(audio; "adpcm-dk3", "Duck DK3 ADPCM"),
	188	desc!(audio; "adpcm-dk4", "Duck DK4 ADPCM"),
629a1025 KS	189	desc!(audio; "on2avc-500", "On2 AVC"),
629a1025 KS	190	desc!(audio; "on2avc-501", "On2 AVC"),
e8e022f4 KS	191
	192	desc!(video; "gdv-video", "Gremlin Digital Video - video"),
	193	desc!(audio; "gdv-audio", "Gremlin Digital Video - audio"),
	194	desc!(video; "bmv-video", "BMV video"),
	195	desc!(audio; "bmv-audio", "BMV audio"),
ecda1cc1 KS	196	desc!(video; "bmv3-video", "DW Noir BMV video"),
ecda1cc1 KS	197	desc!(audio; "bmv3-audio", "DW Noir BMV audio"),
801bba83 KS	198	desc!(video; "midivid", "MidiVid"),
	199	desc!(video; "midivid3", "MidiVid 3"),
	200	desc!(video-ll; "midivid-ll", "MidiVid Lossless"),
9895bd7b KS	201	desc!(video; "vmd-video", "VMD video"),
9895bd7b KS	202	desc!(audio; "vmd-audio", "VMD audio"),
e8e022f4 KS	203
	204	desc!(video; "smacker-video", "Smacker video"),
	205	desc!(audio; "smacker-audio", "Smacker audio"),
	206	desc!(video; "bink-video", "Bink video"),
	207	desc!(video; "bink2-video", "Bink2 video"),
	208	desc!(audio; "bink-audio-dct", "Bink audio (DCT)"),
	209	desc!(audio; "bink-audio-rdft", "Bink audio (RDFT)"),
ed374345 KS	210
	211	desc!(audio; "lhst15f8", "L&H StreamTalk 15kbps at 8 kHz"),
	212	desc!(audio; "lhst250f11", "L&H StreamTalk 25kbps at 11 kHz"),
	213	desc!(audio; "lhst500f22", "L&H StreamTalk 50kpbs at 22 kHz"),
	214	desc!(audio; "lhst48", "L&H StreamTalk CELP Codec 4.8kbps at 8 kHz"),
d48ee414 KS	215	];
	216
	217	static AVI_VIDEO_CODEC_REGISTER: &'static [(&[u8;4], &str)] = &[
45e794c4 KS	218	(b"IF09", "indeo1"),
	219	(b"RT21", "indeo2"),
	220	(b"IV31", "indeo3"),
	221	(b"IV32", "indeo3"),
	222	(b"IV41", "indeo4"),
	223	(b"IV50", "indeo5"),
836bf150	224	(b"I263", "intel263"),
ce52b3b5	225
750b299c	226	(b"UCOD", "clearvideo"),
b2d656d0	227
801bba83 KS	228	(b"MVDV", "midivid"),
	229	(b"MV30", "midivid3"),
	230	(b"MVLZ", "midivid-ll"),
	231
b2d656d0 KS	232	(b"DUCK", "truemotion1"),
	233	(b"TR20", "truemotionrt"),
	234	(b"TM20", "truemotion2"),
	235	(b"TM2A", "truemotion2x"),
	236	(b"TM2X", "truemotion2x"),
40e95291 KS	237	(b"VP30", "vp3"),
	238	(b"VP31", "vp3"),
	239	(b"VP40", "vp4"),
	240	(b"VP50", "vp5"),
	241	(b"VP60", "vp6"),
	242	(b"VP61", "vp6"),
	243	(b"VP62", "vp6"),
1bf8e0fc	244	(b"VP6A", "vp6a"),
40e95291	245	(b"VP70", "vp7"),
d48ee414 KS	246	];
	247
	248	static WAV_CODEC_REGISTER: &'static [(u16, &str)] = &[
45e794c4 KS	249	(0x0000, "pcm"),
	250	(0x0001, "pcm"),
	251	(0x0003, "pcm"),
fadee95f KS	252	(0x0061, "adpcm-dk4"),
fadee95f KS	253	(0x0062, "adpcm-dk3"),
45e794c4 KS	254	(0x0401, "imc"),
45e794c4 KS	255	(0x0402, "iac"),
a38be6e4 KS	256	(0x0500, "on2avc-500"),
a38be6e4 KS	257	(0x0501, "on2avc-501"),
d48ee414 KS	258	];
d48ee414 KS	259
285f4c72	260	/// Returns video codec short name for provided FOURCC (used in AVI format).
d48ee414	261	pub fn find_codec_from_avi_fourcc(fcc: &[u8;4]) -> Option<&'static str> {
e243ceb4 KS	262	for (fourcc, name) in AVI_VIDEO_CODEC_REGISTER.iter() {
e243ceb4 KS	263	if *fourcc == fcc { return Some(name); }
d48ee414 KS	264	}
	265	None
	266	}
	267
285f4c72	268	/// Returns known audio codec short name for provided TWOCC (used in WAV and AVI format).
d48ee414	269	pub fn find_codec_from_wav_twocc(tcc: u16) -> Option<&'static str> {
e243ceb4 KS	270	for (twocc, name) in WAV_CODEC_REGISTER.iter() {
e243ceb4 KS	271	if *twocc == tcc { return Some(name); }
d48ee414 KS	272	}
	273	None
	274	}
	275
	276	#[cfg(test)]
	277	mod test {
	278	use super::*;
	279
	280	#[test]
	281	fn test_register() {
	282	let c1 = find_codec_from_avi_fourcc(b"IV41").unwrap();
	283	let c2 = find_codec_from_wav_twocc(0x401).unwrap();
	284	println!("found {} and {}", c1, c2);
	285	let cd1 = get_codec_description(c1).unwrap();
	286	let cd2 = get_codec_description(c2).unwrap();
	287	println!("got {} and {}", cd1, cd2);
	288	}
b58d7656	289	}