add flush() to decoder interface

[nihav.git] / nihav-game / src / codecs / bmv.rs

diff --git a/nihav-game/src/codecs/bmv.rs b/nihav-game/src/codecs/bmv.rs
index 6712ce2615bdf82d03fd9002e5e23c3181adfa18..902ae513bee4fc5d312bcf840bd0151cb460f29d 100644 (file)
--- a/nihav-game/src/codecs/bmv.rs
+++ b/nihav-game/src/codecs/bmv.rs
@@ -84,11 +84,7 @@ impl<'a> BMVWriter<'a> {
         for _ in 0..len {
             let saddr = (self.pos as isize) + self.off;
             if saddr < 0 { continue; }
-            if self.fwd {
-                self.data[self.pos] = self.data[saddr as usize];
-            } else {
-                self.data[self.pos] = self.data[saddr as usize];
-            }
+            self.data[self.pos] = self.data[saddr as usize];
             self.advance();
         }
     }
@@ -169,7 +165,7 @@ impl BMVVideoDecoder {
 }
 
 impl NADecoder for BMVVideoDecoder {
-    fn init(&mut self, info: NACodecInfoRef) -> DecoderResult<()> {
+    fn init(&mut self, _supp: &mut NADecoderSupport, info: NACodecInfoRef) -> DecoderResult<()> {
         if let NACodecTypeInfo::Video(_vinfo) = info.get_properties() {
             let fmt = NAPixelFormaton::new(ColorModel::RGB(RGBSubmodel::RGB),
                                            Some(NAPixelChromaton::new(0, 0, true, 8, 0, 0, 3)),
@@ -185,7 +181,7 @@ impl NADecoder for BMVVideoDecoder {
             Err(DecoderError::InvalidData)
         }
     }
-    fn decode(&mut self, pkt: &NAPacket) -> DecoderResult<NAFrameRef> {
+    fn decode(&mut self, _supp: &mut NADecoderSupport, pkt: &NAPacket) -> DecoderResult<NAFrameRef> {
         let src = pkt.get_buffer();
         validate!(src.len() > 1);
 
@@ -210,9 +206,7 @@ impl NADecoder for BMVVideoDecoder {
         }
         let pos = br.tell() as usize;
 
-        let bufret = alloc_video_buffer(self.info.get_properties().get_video_info().unwrap(), 0);
-        if let Err(_) = bufret { return Err(DecoderError::InvalidData); }
-        let mut bufinfo = bufret.unwrap();
+        let mut bufinfo = alloc_video_buffer(self.info.get_properties().get_video_info().unwrap(), 0)?;
 
         self.decode_frame(&src[pos..], &mut bufinfo, line)?;
 
@@ -222,10 +216,12 @@ impl NADecoder for BMVVideoDecoder {
         frm.set_frame_type(if is_intra { FrameType::I } else { FrameType::P });
         Ok(frm.into_ref())
     }
+    fn flush(&mut self) {
+    }
 }
 
 
-pub fn get_decoder_video() -> Box<NADecoder> {
+pub fn get_decoder_video() -> Box<dyn NADecoder> {
     Box::new(BMVVideoDecoder::new())
 }
 
@@ -246,7 +242,7 @@ impl BMVAudioDecoder {
 }
 
 fn scale_sample(samp: u8, scale: i32) -> i16 {
-    let val = (((samp as i8) as i32) * scale) >> 5;
+    let val = (i32::from(samp as i8) * scale) >> 5;
     if val < -32768 {
         -32768
     } else if val > 32767 {
@@ -257,7 +253,7 @@ fn scale_sample(samp: u8, scale: i32) -> i16 {
 }
 
 impl NADecoder for BMVAudioDecoder {
-    fn init(&mut self, info: NACodecInfoRef) -> DecoderResult<()> {
+    fn init(&mut self, _supp: &mut NADecoderSupport, info: NACodecInfoRef) -> DecoderResult<()> {
         if let NACodecTypeInfo::Audio(ainfo) = info.get_properties() {
             self.ainfo = NAAudioInfo::new(ainfo.get_sample_rate(), ainfo.get_channels(), formats::SND_S16P_FORMAT, 32);
             self.chmap = NAChannelMap::from_str("L,R").unwrap();
@@ -266,7 +262,7 @@ impl NADecoder for BMVAudioDecoder {
             Err(DecoderError::InvalidData)
         }
     }
-    fn decode(&mut self, pkt: &NAPacket) -> DecoderResult<NAFrameRef> {
+    fn decode(&mut self, _supp: &mut NADecoderSupport, pkt: &NAPacket) -> DecoderResult<NAFrameRef> {
         let info = pkt.get_stream().get_info();
         if let NACodecTypeInfo::Audio(_) = info.get_properties() {
             let pktbuf = pkt.get_buffer();
@@ -299,9 +295,11 @@ impl NADecoder for BMVAudioDecoder {
             Err(DecoderError::InvalidData)
         }
     }
+    fn flush(&mut self) {
+    }
 }
 
-pub fn get_decoder_audio() -> Box<NADecoder> {
+pub fn get_decoder_audio() -> Box<dyn NADecoder> {
     Box::new(BMVAudioDecoder::new())
 }