initial seeking support

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

diff --git a/nihav-game/src/demuxers/bmv.rs b/nihav-game/src/demuxers/bmv.rs
index 6ef023ba58946bdabfc7066df9ce4eda67cf885f..44e9193998c9d43c2cb98d1a845ca6003f701428 100644 (file)
--- a/nihav-game/src/demuxers/bmv.rs
+++ b/nihav-game/src/demuxers/bmv.rs
@@ -12,7 +12,7 @@ struct BMVDemuxer<'a> {
 
 impl<'a> DemuxCore<'a> for BMVDemuxer<'a> {
     #[allow(unused_variables)]
-    fn open(&mut self, strmgr: &mut StreamManager) -> DemuxerResult<()> {
+    fn open(&mut self, strmgr: &mut StreamManager, _seek_index: &mut SeekIndex) -> DemuxerResult<()> {
         let src = &mut self.src;
 
         let vhdr = NAVideoInfo::new(640, 429, false, PAL8_FORMAT);
@@ -30,7 +30,7 @@ impl<'a> DemuxCore<'a> for BMVDemuxer<'a> {
     }
 
     fn get_frame(&mut self, strmgr: &mut StreamManager) -> DemuxerResult<NAPacket> {
-        if self.pkt_buf.len() > 0 {
+        if !self.pkt_buf.is_empty() {
             return Ok(self.pkt_buf.pop().unwrap());
         }
 
@@ -51,13 +51,12 @@ impl<'a> DemuxCore<'a> for BMVDemuxer<'a> {
                 let (tb_num, tb_den) = str.get_timebase();
                 let ts = NATimeInfo::new(Some(self.apos), None, None, tb_num, tb_den);
                 let apkt = self.src.read_packet(str, ts, false, asize)?;
-                self.apos += (nblocks as u64) * 32;
+                self.apos += u64::from(nblocks) * 32;
                 self.pkt_buf.push(apkt);
             } else {
                 asize = 0;
             }
-            let mut buf: Vec<u8> = Vec::with_capacity(size - asize + 1);
-            buf.resize(size - asize + 1, 0);
+            let mut buf: Vec<u8> = vec![0; size - asize + 1];
             buf[0] = ctype;
             self.src.read_buf(&mut buf[1..])?;
 
@@ -71,9 +70,8 @@ impl<'a> DemuxCore<'a> for BMVDemuxer<'a> {
         }
     }
 
-    #[allow(unused_variables)]
-    fn seek(&mut self, time: u64) -> DemuxerResult<()> {
-        Err(DemuxerError::NotImplemented)
+    fn seek(&mut self, _time: u64, _seek_index: &SeekIndex) -> DemuxerResult<()> {
+        Err(DemuxerError::NotPossible)
     }
 }
 
@@ -112,7 +110,7 @@ struct BMV3Demuxer<'a> {
 
 impl<'a> DemuxCore<'a> for BMV3Demuxer<'a> {
     #[allow(unused_variables)]
-    fn open(&mut self, strmgr: &mut StreamManager) -> DemuxerResult<()> {
+    fn open(&mut self, strmgr: &mut StreamManager, _seek_index: &mut SeekIndex) -> DemuxerResult<()> {
         let src = &mut self.src;
 
         let mut magic = [0u8; 4];
@@ -158,7 +156,7 @@ impl<'a> DemuxCore<'a> for BMV3Demuxer<'a> {
     }
 
     fn get_frame(&mut self, strmgr: &mut StreamManager) -> DemuxerResult<NAPacket> {
-        if self.pkt_buf.len() > 0 {
+        if !self.pkt_buf.is_empty() {
             return Ok(self.pkt_buf.pop().unwrap());
         }
 
@@ -178,8 +176,7 @@ impl<'a> DemuxCore<'a> for BMV3Demuxer<'a> {
                     asize = self.asize;
                 }
                 validate!(asize <= size);
-                let mut buf: Vec<u8> = Vec::with_capacity(asize + 1);
-                buf.resize(asize + 1, 0);
+                let mut buf: Vec<u8> = vec![0; asize + 1];
                 buf[0] = (self.src.tell() & 1) as u8;
                 self.src.read_buf(&mut buf[1..])?;
 
@@ -194,14 +191,13 @@ impl<'a> DemuxCore<'a> for BMV3Demuxer<'a> {
                 asize = 0;
             }
             if size == asize {
-                if self.pkt_buf.len() > 0 {
+                if !self.pkt_buf.is_empty() {
                     return Ok(self.pkt_buf.pop().unwrap());
                 } else {
                     continue;
                 }
             }
-            let mut buf: Vec<u8> = Vec::with_capacity(size - asize + 1);
-            buf.resize(size - asize + 1, 0);
+            let mut buf: Vec<u8> = vec![0; size - asize + 1];
             buf[0] = ctype;
             self.src.read_buf(&mut buf[1..])?;
 
@@ -215,9 +211,8 @@ impl<'a> DemuxCore<'a> for BMV3Demuxer<'a> {
         }
     }
 
-    #[allow(unused_variables)]
-    fn seek(&mut self, time: u64) -> DemuxerResult<()> {
-        Err(DemuxerError::NotImplemented)
+    fn seek(&mut self, _time: u64, _seek_index: &SeekIndex) -> DemuxerResult<()> {
+        Err(DemuxerError::NotPossible)
     }
 }