X-Git-Url: https://git.nihav.org/?a=blobdiff_plain;f=nihav-core%2Fsrc%2Fcodecs%2Fmod.rs;h=5cf7d07b1eb1b230e5883e34f534d268e2f06ea7;hb=2757a0289c980aeba002609c777815b51ace8e56;hp=1072fc40ca2ad0d4b3952a2dad07950c879cd1e3;hpb=1ebf572dc8cdbf6e1440d90295b3e69eb76339df;p=nihav.git

diff --git a/nihav-core/src/codecs/mod.rs b/nihav-core/src/codecs/mod.rs
index 1072fc4..5cf7d07 100644
--- 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 {
@@ -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.
@@ -374,6 +385,8 @@ pub trait NAPacketiser {
     fn get_packet(&mut self, stream: NAStreamRef) -> DecoderResult<Option<NAPacket>>;
     /// Resets the internal buffer.
     fn reset(&mut self);
+    /// Tells how much data is left in the internal buffer.
+    fn bytes_left(&self) -> usize;
 }
 
 /// Decoder information used during creating a packetiser for requested codec.