melt error

[tatbag]

Hi,

I get this when running patero.py

DEBUG:root:Start: /home/ubuntu/mbc-playout/caspa/small.mp4
DEBUG:root:Stage: audio-norm
Running: melt -progress /home/ubuntu/mbc-playout/caspa/small.mp4 -filter sox:ana
lysis -consumer xml:/tmp/tmpteVjhu.mlt video_off=1 all=1
Current Frame: 77, percentage: 46 0
DEBUG:root:Progress: 46.0
Current Frame: 153, percentage: 91 52
DEBUG:root:Progress: 91.0
stderr Current Frame: 166, percentage: 99

DEBUG:root:Progress: 99.0
DEBUG:root:Stage: video-transcode
Running: melt -progress /tmp/tmpteVjhu.mlt -consumer avformat:/home/ubuntu/mbc-p
layout/caspa/small.m4v properties=H.264 strict=experimental progressive=1
stderr Current Frame: 1, percentage: 0
ERROR:root:Error: Melt error

So video isn't added to caspa, what's wrong?

[pardo-bsso]

Hello @tatbag, could you please run the two melt instances from a commandline? That will give a more detailed log of the error.

Also, this also requires the 'patero' branch of Caspa (that is quite a bit behind master and yet not merged) to properly ingest the transcoded material.

[tatbag]

Yes i have patero branch checked out
I run 2 melt commands in terminal, I get this

root@ip-xxx-xxx-xxx-xxx:/home/ubuntu/mbc-playout/mbc-patero# melt -progress /home/
ubuntu/mbc-playout/caspa/small.mp4 -filter sox:analysis -consumer xml:/tmp/tmpdQ
c85Y.mlt video_off=1 all=1
Current Frame: 166, percentage: 99
root@ip-xxx-xxx-xxx-xxx:/home/ubuntu/mbc-playout/mbc-patero# melt -progress /tmp/t
mpdQc85Y.mlt -consumer avformat:/home/ubuntu/mbc-playout/caspa/small.m4v propert
ies=H.264 strict=experimental progressive=1
Segmentation fault 1, percentage: 0

It says "Segmentation fault".
Also I've noticed that there is no "sample.m4v" file in that directory

[pardo-bsso]

I run 2 melt commands in terminal, I get this
[...]
Segmentation fault 1, percentage: 0

Mmm, that is not good. Where are you installing melt from? Normally we use the latest git version.
Also, on my machine I'm linking to libx264-120 as newer versions from time to time crash.

Could you please send me (either here or in private) your small.mp4 file to test here?

Thanks and best regards.

[tatbag]

For melt I've used Build Script from here http://www.mltframework.org/bin/view/MLT/BuildScripts
I have libx264-123:amd64 package on Linux 3.11.0-12-generic #19-Ubuntu SMP Wed Oct 9 16:20:46 UTC 2
013 x86_64 x86_64 x86_64 GNU/Linux
And here is small.mp4 https://www.dropbox.com/s/kl877fbl32jb31n/small.mp4
Thanks very much for support!

[pardo-bsso]

Thanks. I'll look into it today.

[pardo-bsso]

Well, it works on my machine.
Could you run it under gdb and give us the output of the trace?

[pardo-bsso]

If you need assistance with that tell me and I'll be more than glad to help.

[tatbag]

Ok thanks very much I'll try to do it by myself but it will take some time 'cause I have no experience with GDB :)

Anyways, I've re-installed Melt using github edition, now I get this when running patero.py

DEBUG:root:Start: /home/ubuntu/mbc-playout/caspa/2small.mp4
DEBUG:root:Stage: audio-norm
Running: melt -progress /home/ubuntu/mbc-playout/caspa/2small.mp4 -filter sox:an
alysis -consumer xml:/tmp/tmpK3Y_Na.mlt video_off=1 all=1
stderr Failed to load "/home/ubuntu/mbc-playout/caspa/2small.mp4"
Failed to load "/home/ubuntu/mbc-playout/caspa/2small.mp4"

ERROR:root:Error: Failed to load "/home/ubuntu/mbc-playout/caspa/2small.mp4"
Failed to load "/home/ubuntu/mbc-playout/caspa/2small.mp4"

Is there possibility to remove old files from patero config? Everytime I run it it tries to process old media that i've deleted.

[pardo-bsso]

Is there possibility to remove old files from patero config? Everytime I run it it tries to process old media that i've deleted.

That's my fault. Cleaning the 'transcode_collection' in Mongo should fix it.

[tatbag]

yes db.transcode_queue.remove() fixed it!

[tatbag]

Hello,
I've tried to run melt commands from patero.py under gdb, here's what i got

(gdb) run -progress /home/ubuntu/mbc-playout/caspa/small.mp4 -filter sox:analysi
s -consumer xml:/tmp/tmpaiFb55.mlt video_off=1 all=1
Starting program: /usr/local/bin/melt -progress /home/ubuntu/mbc-playout/caspa/s
mall.mp4 -filter sox:analysis -consumer xml:/tmp/tmpaiFb55.mlt video_off=1 all=1
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
Failed to load "/home/ubuntu/mbc-playout/caspa/small.mp4"
Failed to load "/home/ubuntu/mbc-playout/caspa/small.mp4"
Usage: melt [options] [producer [name=value]* ]+
Options:
-attach filter[:arg] [name=value]* Attach a filter to the output
-attach-cut filter[:arg] [name=value]* Attach a filter to a cut
-attach-track filter[:arg] [name=value]* Attach a filter to a track
-attach-clip filter[:arg] [name=value]* Attach a filter to a producer
-audio-track | -hide-video Add an audio-only track
-blank frames Add blank silence to a track
-consumer id[:arg] [name=value]* Set the consumer (sink)
-debug Set the logging level to debug
-filter filter[:arg] [name=value]* Add a filter to the current track
-group [name=value]* Apply properties repeatedly
-help Show this message
-jack Enable JACK transport synchronization
-join clips Join multiple clips into one cut
-mix length Add a mix between the last two cuts
-mixer transition Add a transition to the mix
-null-track | -hide-track Add a hidden track
-profile name Set the processing settings
-progress Display progress along with position
-remove Remove the most recent cut
-repeat times Repeat the last cut
-query List all of the registered services
-query "consumers" | "consumer"=id List consumers or show info about one
-query "filters" | "filter"=id List filters or show info about one
-query "producers" | "producer"=id List producers or show info about one
-query "transitions" | "transition"=id List transitions, show info about one
-query "profiles" | "profile"=id List profiles, show info about one
-query "presets" | "preset"=id List presets, show info about one
-query "formats" List audio/video formats
-query "audio_codecs" List audio codecs
-query "video_codecs" List video codecs
-serialise [filename] Write the commands to a text file
-silent Do not display position/transport
-split relative-frame Split the last cut into two cuts
-swap Rearrange the last two cuts
-track Add a track
-transition id[:arg] [name=value]* Add a transition
-verbose Set the logging level to verbose
-version Show the version and copyright
-video-track | -hide-audio Add a video-only track
For more help: http://www.mltframework.org/
Inferior 1 (process 17997) exited normally

Even when i run "melt small.mp4" it says "Failed to load "small.mp4""