y4m: if no colourspace is specified it should be YUV 4:2:0

[nihav.git] / nihav-core / src / codecs / mod.rs

diff --git a/nihav-core/src/codecs/mod.rs b/nihav-core/src/codecs/mod.rs
index b6a1820d6bcf6bb87b3c9cad6f0c41aea7af6dc4..1482a61f67ae5ca1ea64a1ea95e8d556aece90ee 100644 (file)
--- a/nihav-core/src/codecs/mod.rs
+++ b/nihav-core/src/codecs/mod.rs
@@ -210,6 +210,13 @@ pub const ENC_MODE_CBR: u64 = 1 << 0;
 /// Encoding parameter flag to force constant framerate mode.
 pub const ENC_MODE_CFR: u64 = 1 << 1;
 
+/// Encoder supports constant bitrate mode.
+pub const ENC_CAPS_CBR: u64 = 1 << 0;
+/// Encoder supports skip frames.
+pub const ENC_CAPS_SKIPFRAME: u64 = 1 << 1;
+/// Encoder supports mid-stream parameters change.
+pub const ENC_CAPS_PARAMCHANGE: u64 = 1 << 2;
+
 /// Encoding parameters.
 #[derive(Clone,Copy,PartialEq)]
 pub struct EncodeParameters {
@@ -219,7 +226,7 @@ pub struct EncodeParameters {
     pub tb_num:     u32,
     /// Time base denominator. Ignored for audio.
     pub tb_den:     u32,
-    /// Bitrate in kilobits per second.
+    /// Bitrate in bits per second.
     pub bitrate:    u32,
     /// A collection of various boolean encoder settings like CBR mode.
     ///
@@ -300,6 +307,10 @@ pub trait NAEncoder: NAOptionHandler {
     /// // convert input into format defined in target_params, feed to the encoder, ...
     /// ```
     fn negotiate_format(&self, encinfo: &EncodeParameters) -> EncoderResult<EncodeParameters>;
+    /// Queries encoder capabilities.
+    ///
+    /// See `ENC_CAPS_*` for examples.
+    fn get_capabilities(&self) -> u64;
     /// Initialises the encoder.
     fn init(&mut self, stream_id: u32, encinfo: EncodeParameters) -> EncoderResult<NAStreamRef>;
     /// Takes a single frame for encoding.