Initial commitHEADtrunk

1 files changed, 61 insertions, 0 deletions

diff --git a/src/boxes/stsd.rs b/src/boxes/stsd.rs
new file mode 100644
index 0000000..35ee5b2
--- /dev/null
+++ b/src/boxes/stsd.rs
@@ -0,0 +1,61 @@
+use byteorder::{BigEndian, ByteOrder};
+use four_cc::FourCC;
+
+use bytes::{BufMut, BytesMut};
+
+use crate::FullBoxHeader;
+use crate::Mp4Box;
+use crate::Mp4BoxError;
+
+use super::AvcSampleEntryBox;
+
+use std::mem::size_of;
+
+pub enum SampleEntry {
+    Avc(AvcSampleEntryBox),
+}
+
+impl SampleEntry {
+    fn size(&self) -> u64 {
+        match self {
+            SampleEntry::Avc(avc) => avc.size(),
+        }
+    }
+}
+
+pub struct SampleDescriptionBox {
+    pub entries: Vec<SampleEntry>,
+}
+
+impl Mp4Box for SampleDescriptionBox {
+    const NAME: FourCC = FourCC(*b"stsd");
+
+    fn get_full_box_header(&self) -> Option<FullBoxHeader> {
+        Some(FullBoxHeader::new(0, 0))
+    }
+
+    fn content_size(&self) -> u64 {
+        let mut size = size_of::<u32>() as u64;
+
+        for entry in &self.entries {
+            size += entry.size();
+        }
+
+        size
+    }
+
+    fn write_box_contents(&self, writer: &mut BytesMut) -> Result<(), Mp4BoxError> {
+        let mut contents = [0u8; 4];
+        BigEndian::write_u32(&mut contents, self.entries.len() as _);
+
+        writer.put_slice(&contents);
+
+        for entry in &self.entries {
+            match entry {
+                SampleEntry::Avc(avc) => avc.write(writer)?,
+            }
+        }
+
+        Ok(())
+    }
+}