ts-analyzer

用于分析MPEG/传输流文件的库。该库不用于编码、解码或复用传输流。它主要是为使用klv-reader提取KLV而创建的。

示例

extern crate ts_analyzer;

use std::env;
use ts_analyzer::reader::TSReader;
use std::fs::File;
use std::io::BufReader;

fn main() {
    env_logger::init();
    let filename = env::var("TEST_FILE").expect("Environment variable not set");
    println!("Reading data from {}", filename);

    let f = File::open(filename.clone()).expect("Couldn't open file");
    let buf_reader = BufReader::new(f);
    // Reader must be mutable due to internal state changing to keep track of what packet is to be
    // read next.
    let mut reader = TSReader::new(&filename, buf_reader).expect("Transport Stream file contains no SYNC bytes.");

    let mut packet;
    loop {
        println!("Reading packet");
        // Run through packets until we get to one with a payload.
        packet = reader.next_packet_unchecked() // Read the first TS packet from the file.
                       .expect("No valid TSPacket found"); // Assume that a TSPacket was found in the file.

        if packet.has_payload()  {
            break
        }
    }

    let payload = packet.payload();
    assert!(payload.is_some(), "No payload in packet");
    println!("Payload bytes: {:02X?}", payload.unwrap().data());
}

目标

• 解析传输流数据包
  • 解析传输流数据包头部
  • 解析传输流数据包适配字段
  • 解析传输流数据包适配扩展字段
  • 能够从数据包中转储原始有效负载字节
• 解析多个数据包的完整有效负载
  • 基于PID跟踪数据包
  • 根据连续计数器连接相同PID的有效负载

参考资料

• 可以在这里找到一个包含KLV数据的示例TS流。
• 维基百科：MPEG传输流
• MPEG官方文档