Struct FileDecoder 

pub struct FileDecoder { /* private fields */ }

FLV file decoder.

See the specification about the format of FLV file.

Implementations

impl FileDecoder

pub fn new() -> Self

Makes a new FileDecoder instance.

Examples found in repository

examples/parse.rs (line 15)

fn main() -> Result<(), MainError> {
    let stdin = std::io::stdin();
    let mut input = stdin.lock();
    let mut buf = ReadBuf::new(vec![0; 1024]);
    let mut decoder = FileDecoder::new();
    let mut is_header_shown = false;

    while !buf.stream_state().is_eos() {
        track!(buf.fill(&mut input))?;
        track!(decoder.decode_from_read_buf(&mut buf))?;
        if let Some(h) = decoder.header() {
            if !is_header_shown {
                println!("[header]");
                println!("has_audio = {}", h.has_audio);
                println!("has_video = {}", h.has_video);
                println!("");
                is_header_shown = true;
            }
        }
        if decoder.is_idle() {
            let tag = track!(decoder.finish_decoding())?;
            println!("[[tags]]");
            println!("type = {:?}", tag_type(&tag));
            println!("timestamp = {}", tag.timestamp().value());
            println!("stream_id = {}", tag.stream_id().value());
            println!("");
        }
    }

    Ok(())
}

pub fn header(&self) -> Option<&Header>

Returns the header of the FLV file.

If the header has not been decoded yet, it will return None.

Examples found in repository

examples/parse.rs (line 21)

fn main() -> Result<(), MainError> {
    let stdin = std::io::stdin();
    let mut input = stdin.lock();
    let mut buf = ReadBuf::new(vec![0; 1024]);
    let mut decoder = FileDecoder::new();
    let mut is_header_shown = false;

    while !buf.stream_state().is_eos() {
        track!(buf.fill(&mut input))?;
        track!(decoder.decode_from_read_buf(&mut buf))?;
        if let Some(h) = decoder.header() {
            if !is_header_shown {
                println!("[header]");
                println!("has_audio = {}", h.has_audio);
                println!("has_video = {}", h.has_video);
                println!("");
                is_header_shown = true;
            }
        }
        if decoder.is_idle() {
            let tag = track!(decoder.finish_decoding())?;
            println!("[[tags]]");
            println!("type = {:?}", tag_type(&tag));
            println!("timestamp = {}", tag.timestamp().value());
            println!("stream_id = {}", tag.stream_id().value());
            println!("");
        }
    }

    Ok(())
}

Trait Implementations

impl Debug for FileDecoder

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Decode for FileDecoder

type Item = Tag

The type of items to be decoded.

fn decode(&mut self, buf: &[u8], eos: Eos) -> Result<usize>

Consumes the given buffer (a part of a byte sequence), and proceeds the decoding process.

fn finish_decoding(&mut self) -> Result<Self::Item>

Finishes the current decoding process and returns the decoded item.

fn is_idle(&self) -> bool

Returns true if there are no items to be decoded by the decoder at the next invocation of decode method, otherwise false.

fn requiring_bytes(&self) -> ByteCount

Returns the lower bound of the number of bytes needed to decode the next item.

impl Default for FileDecoder

fn default() -> FileDecoder

Returns the “default value” for a type.