Hello,
We are using melt in order to build videos from .mov fragments, and when we
process the fragments, we realize that the output videos have around 10
repeated frames at the beginning.
The melt command we use is:
melt -provider in.mov -consumer avformat:out.mp4 vcodec=libx264 an=1
preset=ultrafast vb=2M qmin=10 qmax=22 me_method=hex g=120 threads=4
slices=4
And its console output is:
libdc1394 error: Failed to initialize libdc1394
No LADSPA plugins were found!
Check your LADSPA_PATH environment variable.
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7f14c88d16a0] max_analyze_duration reached
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7f14c8988600] max_analyze_duration reached
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7f14c8da2900] max_analyze_duration reached
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7f14c88e6820] max_analyze_duration reached
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7f14c88e0cc0] max_analyze_duration reached
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7f14c899e240] max_analyze_duration reached
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7f14c88c1ea0] max_analyze_duration reached
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7f14c88c9fc0] max_analyze_duration reached
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7f14c8da0fe0] max_analyze_duration reached
+-----+ +-----+ +-----+ +-----+ +-----+ +-----+ +-----+ +-----+ +-----+
|1=-10| |2= -5| |3= -2| |4= -1| |5= 0| |6= 1| |7= 2| |8= 5| |9= 10|
+-----+ +-----+ +-----+ +-----+ +-----+ +-----+ +-----+ +-----+ +-----+
+---------------------------------------------------------------------+
| H = back 1 minute, L = forward 1 minute |
| h = previous frame, l = next frame |
| g = start of clip, j = next clip, k = previous clip |
| 0 = restart, q = quit, space = play |
+---------------------------------------------------------------------+
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7f14c94cd880] max_analyze_duration reached
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7f14c94d31e0] max_analyze_duration reached
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7f14c94ce960] max_analyze_duration reached
[libx264 @ 0x7f14c98b8a20] lookaheadless mb-tree requires intra refresh or
infinite keyint
Current Position: 488
Tho OSs we use are debian 7 and ubuntu 14.04, and we've realized that the
number of repeated frames depends only on the machine in which we're
executing it (from 5 to 12). This causes annoying stops in the videos.
Our theory is that the architecture of the machine has a lot to do with
these problems, but trying to do the fine tuning with threads, slices and
other parameters like thread_type or real_time is proving useless.
We usually run this command from a Docker with debian 7 and melt 0.8.0, but
as I said before, the OS and the melt version don't matter because in each
machine we always have the same number of repeated frames, and this number
is only different among different host machines.
Thank you very much.
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