scuffle_mp4/boxes/types/
avcc.rs

1use std::io;
2
3use bytes::Bytes;
4use scuffle_h264::AVCDecoderConfigurationRecord;
5
6use crate::boxes::header::BoxHeader;
7use crate::boxes::traits::BoxType;
8
9#[derive(Debug, Clone, PartialEq)]
10/// AVC Configuration Box
11/// ISO/IEC 14496-15:2022(E) - 5.4.2
12pub struct AvcC {
13    pub header: BoxHeader,
14    pub avc_decoder_configuration_record: AVCDecoderConfigurationRecord,
15}
16
17impl AvcC {
18    pub fn new(avc_decoder_configuration_record: AVCDecoderConfigurationRecord) -> Self {
19        Self {
20            header: BoxHeader::new(Self::NAME),
21            avc_decoder_configuration_record,
22        }
23    }
24}
25
26impl BoxType for AvcC {
27    const NAME: [u8; 4] = *b"avcC";
28
29    fn demux(header: BoxHeader, data: Bytes) -> io::Result<Self> {
30        let mut reader = io::Cursor::new(data);
31        Ok(Self {
32            header,
33            avc_decoder_configuration_record: AVCDecoderConfigurationRecord::parse(&mut reader)?,
34        })
35    }
36
37    fn primitive_size(&self) -> u64 {
38        self.avc_decoder_configuration_record.size()
39    }
40
41    fn primitive_mux<T: io::Write>(&self, writer: &mut T) -> io::Result<()> {
42        self.avc_decoder_configuration_record.build(writer)
43    }
44}