Thank you sending message to me. The followings are the information of video using ‘.\ffprobe.exe -show_packets’ command.
Metadata:
major_brand : MSNV
minor_version : 285212672
compatible_brands: MSNVisommp42
creation_time : 2018-11-27T12:44:51.000000Z
Duration: 00:13:02.89, start: 0.000000, bitrate: 18295 kb/s
Stream #0:00x1: Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 192 kb/s (default)
Metadata:
creation_time : 2018-11-27T12:44:51.000000Z
handler_name : Sound Media Handler
vendor_id : [0][0][0][0]
Stream #0:10x2: Video: h264 (High) (avc1 / 0x31637661), yuv420p(top first), 1920x1080 [SAR 1:1 DAR 16:9], 18098 kb/s, 50 fps, 50 tbr, 60k tbn (default)
Metadata:
creation_time : 2018-11-27T12:44:51.000000Z
handler_name : Video Media Handler
vendor_id : [0][0][0][0]
encoder : AVC Coding
And I use the command ’ .\ffprobe.exe -v error -count_frames -select_streams v:0 -show_entries stream=nb_read_frames -of default=nokey=1:noprint_wrappers=1’ to count the frame number. However, it is just 19572 that is different from the number figured by that video time multiples the fps. It’s a strange thing.