On Tue, Jul 24, 2018 at 2:50 PM, Évan <[email protected]> wrote: > On Mon, Jul 23, 2018 at 8:45 AM, Roger Pack wrote: >> Does ffprobe take 20s? > > I just tested and "ffprobe.exe -show_entries frame=pkt_pts_time > bbb_sunflower_1080p_30fps_normal.mp4" does take time to complete.
I also saw this recently: https://stackoverflow.com/questions/51547517/using-ffprobe-to-get-number-of-keyframes-in-raw-avi-file-without-processing-en#comment90288838_51547517 (hint: consider asking on superuser and/or av.stackexchange) Anyway my current hypothesis is that ffmpeg has no way to "skip reading" input as it were... > I'm using ffprobe version 4.0 [...] built with gcc 7.3.0 (GCC), x64, win32 > zeranoe version. > From my test, ffprobes takes like 3 minutes and a half when printing the > result to the console and a minute and a half when output is redirected to a > file. > > My test video is "Big Buck Bunny" 1080p 30FPS MP4 version, md5 sum > babbe51b47146187a66632daa791484b. > > I can send you my test program but I used ffmpeg (and ffprobe) source code > to write it. > Moreover, all CPUs are used at 100% when "building the index" so my program > seems efficient CPU-side. > > Regards > > PS : I'm not subscribed to the list so please CC me. _______________________________________________ ffmpeg-user mailing list [email protected] http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email [email protected] with subject "unsubscribe".
