use NAPacketiser::attach_stream() where appropriate

[nihav-tool.git] / src / demux.rs

diff --git a/src/demux.rs b/src/demux.rs
index 78743bead1d75ec6c247f71b39355f587c82cbb2..1dc78c5f190fcaefe8303cdd6fc401b45f919bf7 100644 (file)
--- a/src/demux.rs
+++ b/src/demux.rs
@@ -98,27 +98,38 @@ pub enum DemuxerObject<'a> {
 }
 
 impl<'a> DemuxerObject<'a> {
-    pub fn create(br: &'a mut ByteReader<'a>, reg: &FullRegister, name: &str, is_raw: bool) -> DemuxerObject<'a> {
+    pub fn create(br: &'a mut ByteReader<'a>, reg: &FullRegister, name: &str, force_dmx: Option<&str>, is_raw: bool, opts: &[NAOption]) -> DemuxerObject<'a> {
         if !is_raw {
             let res = detect::detect_format(name, br);
+            if let Some(dmx_name) = force_dmx {
+                println!("forcing demuxer {} on {}", dmx_name, name);
+                if let Some(dmx_fact) = reg.dmx_reg.find_demuxer(dmx_name) {
+                    br.seek(SeekFrom::Start(0)).unwrap();
+                    let dmx = create_demuxer_with_options(dmx_fact, br, opts).unwrap();
+                    return DemuxerObject::Normal(dmx);
+                } else {
+                    return DemuxerObject::None
+                }
+            }
             let (dmx_name, _) = res.unwrap_or(("", detect::DetectionScore::No));
-            if dmx_name != "" {
+            if !dmx_name.is_empty() {
                 println!("trying demuxer {} on {}", dmx_name, name);
                 if let Some(dmx_fact) = reg.dmx_reg.find_demuxer(dmx_name) {
                     br.seek(SeekFrom::Start(0)).unwrap();
-                    let dmx = create_demuxer(dmx_fact, br).unwrap();
+                    let dmx = create_demuxer_with_options(dmx_fact, br, opts).unwrap();
                     return DemuxerObject::Normal(dmx);
                 }
             }
-            if dmx_name != "" {
+            if !dmx_name.is_empty() {
                 println!("trying raw demuxer {} on {}", dmx_name, name);
                 if let Some(rdmx_fact) = reg.rdmx_reg.find_demuxer(dmx_name) {
                     br.seek(SeekFrom::Start(0)).unwrap();
-                    let dmx = create_raw_demuxer(rdmx_fact, br).unwrap();
+                    let dmx = create_raw_demuxer_with_options(rdmx_fact, br, opts).unwrap();
                     let mut pkts = Vec::new();
                     for stream in dmx.get_streams() {
                         if let Some(pcreate) = reg.pkt_reg.find_packetiser(stream.get_info().get_name()) {
-                            let packetiser = (pcreate)();
+                            let mut packetiser = (pcreate)();
+                            packetiser.attach_stream(stream);
                             pkts.push(Some(packetiser));
                         } else {
                             pkts.push(None);
@@ -131,7 +142,7 @@ impl<'a> DemuxerObject<'a> {
                 if rdmx.check_format(br) {
                     println!("detected {} as {}", name, rdmx.get_name());
                     br.seek(SeekFrom::Start(0)).unwrap();
-                    let dmx = create_raw_demuxer(*rdmx, br).unwrap();
+                    let dmx = create_raw_demuxer_with_options(*rdmx, br, opts).unwrap();
                     let mut pkts = Vec::new();
                     for stream in dmx.get_streams() {
                         if let Some(pcreate) = reg.pkt_reg.find_packetiser(stream.get_info().get_name()) {
@@ -147,7 +158,8 @@ impl<'a> DemuxerObject<'a> {
         }
         br.seek(SeekFrom::Start(0)).unwrap();
         let mut buf = vec![0; 1048576];
-        let size = br.peek_buf(&mut buf).unwrap();
+        let size = br.read_buf_some(&mut buf).unwrap();
+        br.seek(SeekFrom::Start(0)).unwrap();
         let mut pname = "";
 
         for pinfo in reg.pkt_reg.iter() {
@@ -158,7 +170,7 @@ impl<'a> DemuxerObject<'a> {
                 break;
             }
         }
-        if pname != "" {
+        if !pname.is_empty() {
             println!("found raw stream of type {} for {}", pname, name);
             let pcreate = reg.pkt_reg.find_packetiser(pname).unwrap();
             let mut packetiser = (pcreate)();
@@ -171,10 +183,7 @@ impl<'a> DemuxerObject<'a> {
         }
     }
     pub fn is_none(&self) -> bool {
-        match *self {
-            DemuxerObject::None => true,
-            _ => false,
-        }
+        matches!(*self, DemuxerObject::None)
     }
     pub fn get_duration(&self) -> u64 {
         match *self {
@@ -302,20 +311,31 @@ pub fn detect_tags(br: &mut ByteReader) -> (bool, u64, Option<u64>) {
 
     // check for ID3v{2-4}
     let mut buf = [0; 5];
-    br.peek_buf(&mut buf).unwrap();
-    if &buf[0..3] == b"ID3" && buf[3] > 0 && buf[3] < 5 && buf[4] == 0 { //ID3 tag found, must be a raw stream
-        br.read_skip(6).unwrap();
-        let mut size = 0;
-        for _ in 0..4 {
-            let b = br.read_byte().unwrap();
-            if (b & 0x80) != 0 {
-                println!("Invalid ID3 size");
-                break;
+    loop {
+        if br.peek_buf(&mut buf).is_err() {
+            break;
+        }
+        if &buf[0..3] == b"ID3" && buf[3] > 0 && buf[3] < 5 && buf[4] == 0 { //ID3 tag found, must be a raw stream
+            br.read_skip(6).unwrap();
+            let mut size = 0;
+            for _ in 0..4 {
+                let b = br.read_byte().unwrap();
+                if (b & 0x80) != 0 {
+                    println!("Invalid ID3 size");
+                    break;
+                }
+                size = (size << 7) | u64::from(b);
+            }
+            start += size + 10;
+            br.read_skip(size as usize).unwrap();
+            while let Ok(0) = br.read_byte() {
+                start += 1;
             }
-            size = (size << 7) | u64::from(b);
+            br.seek(SeekFrom::Start(start)).unwrap();
+            is_raw = true;
+        } else {
+            break;
         }
-        start = size + 10;
-        is_raw = true;
     }
     // check for ID3v1
     br.seek(SeekFrom::End(-128)).unwrap();
@@ -323,6 +343,20 @@ pub fn detect_tags(br: &mut ByteReader) -> (bool, u64, Option<u64>) {
     br.peek_buf(&mut buf[..3]).unwrap();
     if &buf[0..3] == b"TAG" {
         end = Some(off);
+        // check for Lyrics v2
+        let mut sig = [0; 9];
+        br.seek(SeekFrom::End(-128 - 9)).unwrap();
+        br.peek_buf(&mut sig).unwrap();
+        if &sig == b"LYRICS200" {
+            br.seek(SeekFrom::Current(-6)).unwrap();
+            let mut sizestr = [0; 6];
+            br.peek_buf(&mut sizestr).unwrap();
+            if let Ok(sstr) = std::str::from_utf8(&sizestr) {
+                if let Ok(size) = sstr.parse::<u64>() {
+                    end = Some(br.tell() - size);
+                }
+            }
+        }
     }
     // check for APETAG
     let mut buf = [0; 8];
@@ -344,6 +378,27 @@ pub fn detect_tags(br: &mut ByteReader) -> (bool, u64, Option<u64>) {
             end = Some(off - size);
         }
     }
+    // check for MusicMatch tag
+    let ret = if let Some(endpos) = end {
+            br.seek(SeekFrom::Start(endpos - 0x30))
+        } else {
+            br.seek(SeekFrom::End(-0x30))
+        };
+    if ret.is_ok() && br.tell() > (0x2000 - 0x30) {
+        let mut buf = [0; 19];
+        br.peek_buf(&mut buf).unwrap();
+        if &buf == b"Brava Software Inc." {
+            br.seek(SeekFrom::Current(-20)).unwrap();
+            let mut mm_start = u64::from(br.read_u32le().unwrap());
+            if mm_start > 4 && mm_start + 0x2000 <= br.tell() {
+                let diff = (br.tell() - mm_start) & 3;
+                if diff != 0 {
+                    mm_start -= 4 - diff;
+                }
+                end = Some(mm_start);
+            }
+        }
+    }
 
     (is_raw, start, end)
 }