qt.multimedia.ffmpeg: Using Qt multimedia with FFmpeg version n8.0 GPL version 3 or later
QGraphicsWidget::setAttribute: unsupported attribute 74
Input #0, avi, from '/video/retour_vers_le_present.avi':
  Duration: 00:03:00.12, start: 0.000000, bitrate: 41777 kb/s
  Stream #0:0: Video: h264 (High), yuv420p(progressive), 768x576, SAR 1:1 DAR 4:3, 25 fps, 25 tbr, 1k tbn
  Stream #0:1: Audio: mp3 (mp3float) (U[0][0][0] / 0x0055), 48000 Hz, stereo, fltp, 128 kb/s
No audio device detected