in osx check with MediaInfo.app
better:
ffmpeg installed you can go to terminal and type
ffprobe myVideofile.m4v
this will show something like (containing progressive/interlaced and audio information):
Metadata:
major_brand : mp42
minor_version : 1
compatible_brands: mp41mp42isom
creation_time : 2019-01-16T00:36:29.000000Z
Duration: 00:00:43.80, start: 0.000000, bitrate: 1022 kb/s
Stream #0:0(deu): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 248 kb/s (default)
Metadata:
creation_time : 2019-01-16T00:36:29.000000Z
handler_name : Core Media Audio
Stream #0:1(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv, bt709, progressive), 1920×1080 [SAR 1:1 DAR 16:9], 755 kb/s, 25 fps, 25 tbr, 25 tbn, 50 tbc (default)
Metadata:
creation_time : 2019-01-16T00:36:29.000000Z
handler_name : Core Media Video