#233 melt jpg/mkv (maybe broken) crash

[CarlFK]

http://5cda49ca88af98bf1f1e-b4c3b47b38bb1b572e0805ecabeeb59c.r76.cf2.rackcdn.com/20_42_43.mkv

65K 20_42_43.mkv

I am not sure if that file is valid.

Created using the gstreamer pipleline below. hit ^c a few times to get out of the bash loop.

gst-play-1.0 complains about it (also below)

carl@twist:~/temp$ melt $PWD/20_42_43.mkv 
GNU gdb (Ubuntu 7.9-1ubuntu1) 7.9
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Reading symbols from /home/carl/local/Shotcut/Shotcut.app/bin/melt...done.
(gdb) run
Starting program: /home/carl/local/Shotcut/Shotcut.app/bin/melt /home/carl/temp/20_42_43.mkv
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[mjpeg @ 0x768900] Found EOI before any SOF, ignoring
[mjpeg @ 0x768900] No JPEG data found in image
[matroska,webm @ 0x765120] Could not find codec parameters for stream 0 (Video: mjpeg (MJPG / 0x47504A4D), none(bt470bg/unknown/unknown), 1280x720): unspecified pixel format
Consider increasing the value for the 'analyzeduration' and 'probesize' options
[mjpeg @ 0x7c8e40] Found EOI before any SOF, ignoring
[mjpeg @ 0x7c8e40] No JPEG data found in image
[matroska,webm @ 0x7c8840] Could not find codec parameters for stream 0 (Video: mjpeg (MJPG / 0x47504A4D), none(bt470bg/unknown/unknown), 1280x720): unspecified pixel format
Consider increasing the value for the 'analyzeduration' and 'probesize' options
Assertion desc failed at libswscale/swscale_internal.h:658

Program received signal SIGABRT, Aborted.
0x00007ffff75f5267 in __GI_raise (sig=sig@entry=6)
    at ../sysdeps/unix/sysv/linux/raise.c:55
55  ../sysdeps/unix/sysv/linux/raise.c: No such file or directory.
(gdb) bt
#0  0x00007ffff75f5267 in __GI_raise (sig=sig@entry=6)
    at ../sysdeps/unix/sysv/linux/raise.c:55
#1  0x00007ffff75f6eca in __GI_abort () at abort.c:89
#2  0x00007ffff529f9cb in sws_setColorspaceDetails ()
   from /home/carl/local/Shotcut/Shotcut.app/lib/libswscale.so.3
#3  0x00007ffff525b441 in sws_init_context ()
   from /home/carl/local/Shotcut/Shotcut.app/lib/libswscale.so.3
#4  0x00007ffff52a09d3 in sws_getContext ()
   from /home/carl/local/Shotcut/Shotcut.app/lib/libswscale.so.3
#5  0x00007ffff6ee7b61 in get_basic_info (
    filename=0x618e10 "/home/carl/temp/20_42_43.mkv", profile=0x6186b0, 
    self=0x7622c0) at producer_avformat.c:620
#6  producer_open (self=self@entry=0x7622c0, profile=profile@entry=0x6186b0, 
    URL=<optimized out>, take_lock=take_lock@entry=1)
    at producer_avformat.c:688
#7  0x00007ffff6eeaada in producer_avformat_init (profile=0x6186b0, 
    service=<optimized out>, 
    file=0x7fffffffe039 "/home/carl/temp/20_42_43.mkv")
    at producer_avformat.c:185
#8  0x00007ffff7bcc61a in mlt_factory_producer (
    profile=profile@entry=0x6186b0, service=service@entry=0x760310 "avformat", 
    resource=resource@entry=0x7fffffffe039) at mlt_factory.c:305
#9  0x00007fffea06fa0f in create_from (services=<optimized out>, 
    file=0x7fffffffe039 "/home/carl/temp/20_42_43.mkv", profile=0x6186b0)
    at producer_loader.c:57
#10 create_producer (profile=profile@entry=0x6186b0, 
    file=file@entry=0x7fffffffe039 "/home/carl/temp/20_42_43.mkv")
    at producer_loader.c:123
#11 0x00007fffea06fca2 in producer_loader_init (profile=0x6186b0, 
    type=<optimized out>, id=0x608830 "loader", 
    arg=0x7fffffffe039 "/home/carl/temp/20_42_43.mkv") at producer_loader.c:220
---Type <return> to continue, or q <return> to quit---
#12 0x00007ffff7bcc61a in mlt_factory_producer (
    profile=profile@entry=0x6186b0, service=0x608830 "loader", 
    service@entry=0x7fffffffe039 "/home/carl/temp/20_42_43.mkv", 
    resource=0x7fffffffe039) at mlt_factory.c:305
#13 0x00007fffea070fe9 in create_producer (file=<optimized out>, 
    field=0x75db40, profile=0x6186b0) at producer_melt.c:86
#14 producer_melt_init (profile=0x6186b0, type=<optimized out>, 
    id=<optimized out>, argv=0x7fffffffdc40) at producer_melt.c:438
#15 0x00007ffff7bcc61a in mlt_factory_producer (
    profile=profile@entry=0x6186b0, service=service@entry=0x404bff "melt", 
    resource=resource@entry=0x7fffffffdc40) at mlt_factory.c:305
#16 0x000000000040277c in main (argc=2, argv=0x7fffffffdc38) at melt.c:863
(gdb) 

dir=$(date +%Y-%m-%d/atlys)

mkdir -p $dir

while [ 1 ]; do

gst-launch-1.0 --eos-on-shutdown v4l2src device=/dev/video1 \
    ! image/jpeg,width=1280,height=720 \
      ! queue max-size-bytes=100000000 max-size-time=0 \
    ! matroskamux name=mux \
    alsasrc device=hw:CARD=CODEC latency-time=100 \
      ! queue max-size-bytes=100000000 max-size-time=0 \
    ! audioconvert \
      ! queue max-size-bytes=100000000 max-size-time=0 \
    ! vorbisenc \
      ! queue max-size-bytes=100000000 max-size-time=0 \
    ! mux. mux. \
      ! queue max-size-bytes=100000000 max-size-time=0 \
    ! filesink location=$dir/$(date +%H_%M_%S).mkv

done

carl@twist:~/temp$ gst-play-1.0 20_42_43.mkv 
Now playing /home/carl/temp/20_42_43.mkv
ERROR No valid frames decoded before end of stream for file:///home/carl/temp/20_42_43.mkv
ERROR debug information: gstvideodecoder.c(1070): gst_video_decoder_sink_event_default (): /GstPlayBin:playbin/GstURIDecodeBin:uridecodebin0/GstDecodeBin:decodebin0/GstJpegDec:jpegdec0:
no valid frames found
Reached end of play list.

[Dan Dennedy]

Fixed in git commit 3f1662b. Now, it rejects the video, but still thinks it is valid (some audio?) and displays a frame of white, which is normally how melt displays audio-only files.

[Dan Dennedy]

mlt 6.0.0 released