+//! 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,
}
}
}
-const CODEC_CAP_INTRAONLY:u32 = 0x000001;
-const CODEC_CAP_LOSSLESS:u32 = 0x000002;
-const CODEC_CAP_REORDER:u32 = 0x000004;
-const CODEC_CAP_HYBRID:u32 = 0x000008;
-const CODEC_CAP_SCALABLE:u32 = 0x000010;
+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 = format!("{}", self.fname);
+ let mut out = self.fname.to_string();
if self.caps != 0 {
let mut capfmt = "".to_string();
if (self.caps & CODEC_CAP_INTRAONLY) != 0 {
});
}
+/// 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 {
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; "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; "on2-avc-500", "On2 AVC"),
- desc!(audio; "on2-avc-501", "On2 AVC"),
+ 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"),
(b"UCOD", "clearvideo"),
+ (b"MVDV", "midivid"),
+ (b"MV30", "midivid3"),
+ (b"MVLZ", "midivid-ll"),
+
(b"DUCK", "truemotion1"),
(b"TR20", "truemotionrt"),
(b"TM20", "truemotion2"),
(b"VP60", "vp6"),
(b"VP61", "vp6"),
(b"VP62", "vp6"),
+ (b"VP6A", "vp6a"),
(b"VP70", "vp7"),
];
(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 i in 0..AVI_VIDEO_CODEC_REGISTER.len() {
- let (fourcc, name) = AVI_VIDEO_CODEC_REGISTER[i];
- if fourcc == fcc { return Some(name); }
+ 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 i in 0..WAV_CODEC_REGISTER.len() {
- let (twocc, name) = WAV_CODEC_REGISTER[i];
- if twocc == tcc { return Some(name); }
+ for (twocc, name) in WAV_CODEC_REGISTER.iter() {
+ if *twocc == tcc { return Some(name); }
}
None
}
projects / nihav.git / blobdiff