test_rotation.rs - mozsearch

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use mp4parse_capi::*;

use std::io::Read;

extern "C" fn buf_read(buf: *mut u8, size: usize, userdata: *mut std::os::raw::c_void) -> isize {

    let input: &mut std::fs::File = unsafe { &mut *(userdata as *mut _) };

    let buf = unsafe { std::slice::from_raw_parts_mut(buf, size) };

    match input.read(buf) {

        Ok(n) => n as isize,

        Err(_) => -1,

#[test]

fn parse_rotation() {

    let mut file = std::fs::File::open("tests/video_rotation_90.mp4").expect("Unknown file");

    let io = Mp4parseIo {

        read: Some(buf_read),

        userdata: &mut file as *mut _ as *mut std::os::raw::c_void,

};

    unsafe {

        let mut parser = std::ptr::null_mut();

        let mut rv = mp4parse_new(&io, &mut parser);

        assert_eq!(rv, Mp4parseStatus::Ok);

        assert!(!parser.is_null());

        let mut counts: u32 = 0;

        rv = mp4parse_get_track_count(parser, &mut counts);

        assert_eq!(rv, Mp4parseStatus::Ok);

        assert_eq!(counts, 1);

        let mut video = Mp4parseTrackVideoInfo::default();

        let rv = mp4parse_get_track_video_info(parser, 0, &mut video);

        assert_eq!(rv, Mp4parseStatus::Ok);

        assert_eq!(video.rotation, 90);

        mp4parse_free(parser);