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// Test for afconvert AAC duration issue #404
use mp4parse_capi::*;
use std::fs::File;
use std::io::Read;
static AFCONVERT_AAC_FILE: &str = "tests/afconvert-aac-0.5s.mp4";
extern "C" fn buf_read(buf: *mut u8, size: usize, userdata: *mut std::os::raw::c_void) -> isize {
let input: &mut 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 test_afconvert_aac_duration() {
unsafe {
let mut file =
File::open(AFCONVERT_AAC_FILE).expect("Failed to open afconvert AAC test file");
let io = Mp4parseIo {
read: Some(buf_read),
userdata: &mut file as *mut _ as *mut std::os::raw::c_void,
};
let mut parser = std::ptr::null_mut();
let rv = mp4parse_new(&io, &mut parser);
assert_eq!(rv, Mp4parseStatus::Ok);
assert!(!parser.is_null());
let mut count: u32 = 0;
let rv = mp4parse_get_track_count(parser, &mut count);
assert_eq!(rv, Mp4parseStatus::Ok);
assert_eq!(count, 1, "Expected exactly one track");
let mut track_info = Mp4parseTrackInfo::default();
let rv = mp4parse_get_track_info(parser, 0, &mut track_info);
assert_eq!(rv, Mp4parseStatus::Ok);
assert_eq!(track_info.track_type, Mp4parseTrackType::Audio);
// The file should be exactly 0.5s long (22050 samples at 44100Hz = 0.5s)
// afconvert produces files with elst box having start_time=2112 and segment_duration=22050
// We should report the media duration (0.5s) not the track duration
assert_eq!(
track_info.duration, 22050,
"Track duration should be 22050 (from elst segment_duration), got {}",
track_info.duration
);
// Verify the duration represents 0.5 seconds
let duration_seconds = track_info.duration as f64 / track_info.time_scale as f64;
assert!(
(duration_seconds - 0.5).abs() < 0.001,
"Duration should be 0.5 seconds, got {} seconds",
duration_seconds
);
mp4parse_free(parser);
}
}