Are the recordings of a GoPro Hero 3 camera at 60 fps with constant or variable frame rate? How can I check the corresponding mp4 file for constant or variable frame rate?
Here is the output of the ffmpeg -i
command:
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/media/102GOPRO/GOPR0333.MP4':
Metadata:
major_brand : avc1
minor_version : 0
compatible_brands: avc1isom
creation_time : 2019-04-16 13:18:14
Duration: 00:19:53.73, start: 0.000000, bitrate: 15122 kb/s
Stream #0:0(eng): Video: h264 (Main) (avc1 / 0x31637661), yuvj420p(pc, bt709), 1280x720 [SAR 1:1 DAR 16:9], 14982 kb/s, 59.94 fps, 59.94 tbr, 60k tbn, 119.88 tbc (default)
Metadata:
creation_time : 2019-04-16 13:18:14
handler_name : GoPro AVC
encoder : GoPro AVC encoder
timecode : 13:17:26:44
Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 127 kb/s (default)
Metadata:
creation_time : 2019-04-16 13:18:14
handler_name : GoPro AAC
timecode : 13:17:26:44
Stream #0:2(eng): Data: none (tmcd / 0x64636D74) (default)
Metadata:
creation_time : 2019-04-16 13:18:14
timecode : 13:17:26:44