flvparse

A FLV format parsing library written in Rust with nom.

Usage

Quick start

[dependencies]
flvparse = "0.1"

fn main() {
    let bytes = include_bytes!("assets/test.flv");
    let flv = flvparse::FlvFile::parse(bytes).unwrap();
    // ...
}

Example

See example for details.

cd cmd
cargo run -- --input ../assets/test.flv

+-----------------+-----------+
| FLV File Header |           |
+-----------------+-----------+
| Signature (3B)  | 46 4c 56  |
| Version (1B)    | 1         |
| Flags (1B)      | 0000 0101 |
| DataOffset (4B) | 9         |
+-----------------+-----------+
+------------------+-------------------+------------------+------------------+
| Total tag number | Script tag number | Video tag number | Audio tag number |
+------------------+-------------------+------------------+------------------+
| 13041            | 1                 | 4668             | 8372             |
+------------------+-------------------+------------------+------------------+

cd cmd
cargo run -- --input ../assets/test.flv -p
+-----------------+-----------+
| FLV File Header |           |
+-----------------+-----------+
| Signature (3B)  | 46 4c 56  |
| Version (1B)    | 1         |
| Flags (1B)      | 0000 0101 |
| DataOffset (4B) | 9         |
+-----------------+-----------+
+---------------+--------------+---------------+----------------+---------------+
| FLV File Body |              |               |                |               |
+---------------+--------------+---------------+----------------+---------------+
| Index         | TagType (1B) | DataSize (3B) | Timestamp (4B) | StreamID (3B) |
| 1             | Script       | 1030          | 0              | 0             |
| 2             | Video        | 48            | 0              | 0             |
| 3             | Audio        | 7             | 0              | 0             |
| 4             | Video        | 2831          | 0              | 0             |
| ...                                                                           |
| 13039         | Audio        | 15            | 194494         | 0             |
| 13040         | Audio        | 15            | 194517         | 0             |
| 13041         | Video        | 5             | 194375         | 0             |
+---------------+--------------+---------------+----------------+---------------+
+------------------+-------------------+------------------+------------------+
| Total tag number | Script tag number | Video tag number | Audio tag number |
+------------------+-------------------+------------------+------------------+
| 13041            | 1                 | 4668             | 8372             |
+------------------+-------------------+------------------+------------------+

Related structure

FlvFile
├──FlvFileHeader
└──FlvFileBody
   ├──u32 -- first previous tag size
   └──Vec<(FlvTag, u32)>
    
FlvTag
├──FlvTagHeader
└──FlvTagData

FlvTagData
└──ScriptTag/VideoTag/AudioTag

License

Licensed under either of

at your option.

Contribution

Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.