On Wed, 6 Jan 2021 18:50:34 -0500 Gene Heskett via tde-users <users@xxxxxxxxxxxxxxxxxx> wrote: > Playing Intel® Desktop Board D525MW — Product Guides.mp4. > libavformat version 57.56.101 (external) > Mismatching header version 57.56.100 > libavformat file format detected. > [mov,mp4,m4a,3gp,3g2,mj2 @ 0x7f666212ad00]moov atom not found > LAVF_header: av_open_input_stream() failed > libavformat file format detected. > [mov,mp4,m4a,3gp,3g2,mj2 @ 0x7f666212ad00]moov atom not found > LAVF_header: av_open_input_stream() failed > > > Exiting... (End of file) > > And I repeat, what the heck is a "moov atom"? Apparently it's the bit of the mp4 file that tells the player what codecs were used on the streams inside, plus some other constants. Without it, the player doesn't know what codecs to use. You may have a truncated or bit-rotted file on your hands (the moov atom is usually at the end of the file, it seems), or the encoder may simply have been standards-incompliant or outright broken. The error above is bubbling up from ffmpeg, which is a pretty low-level library, so I wouldn't bet on finding a player that will accept this particular file without help. If you know what the audio and video codecs inside are, you *might* be able to find a player that can reconstruct the moov atom if you specify the codecs at the command line. http://vcg.isti.cnr.it/~ponchio/untrunc.php may or may not be helpful. E. Liddell ____________________________________________________ tde-users mailing list -- users@xxxxxxxxxxxxxxxxxx To unsubscribe send an email to users-leave@xxxxxxxxxxxxxxxxxx Web mail archive available at https://mail.trinitydesktop.org/mailman3/hyperkitty/list/users@xxxxxxxxxxxxxxxxxx
