Helo!
I want create a video panorame in accordance with video-tutorial. I cann't load a png-file in Kdenlive:
$ kdenlive
*** glibc detected *** kdenlive: malloc(): memory corruption: 0x09b09910 ***
======= Backtrace: =========
/lib/i686/cmov/libc.so.6[0xb5bca824]
/lib/i686/cmov/libc.so.6[0xb5bcd2cb]
/lib/i686/cmov/libc.so.6(__libc_malloc+0x5e)[0xb5bcf1ae]
/lib/i686/cmov/libc.so.6(__strdup+0x30)[0xb5bd2760]
/usr/local/lib/libmlt.so.2[0xb76c2611]
======= Memory map: ========
08048000-08316000 r-xp 00000000 08:01 482422 /usr/bin/kdenlive
08316000-08319000 rw-p 002ce000 08:01 482422 /usr/bin/kdenlive
093da000-09c27000 rw-p 00000000 00:00 0 [heap]
a6638000-af9fc000 rw-p 00000000 00:00 0
af9fc000-afa54000 r-xp 00000000 08:01 452811 /usr/lib/libtiff.so.4.3.2
afa54000-afa56000 rw-p 00058000 08:01 452811 /usr/lib/libtiff.so.4.3.2
afa6f000-afa9f000 r-xp 00000000 08:01 453985 /usr/lib/liblcms.so.1.0.18
afa9f000-afaa1000 rw-p 0002f000 08:01 453985 /usr/lib/liblcms.so.1.0.18
afaa1000-afaa3000 rw-p 00000000 00:00 0
afaa3000-afb11000 r-xp 00000000 08:01 541172 /usr/lib/libmng.so.1.1.0.9
afb11000-afb14000 rw-p 0006e000 08:01 541172 /usr/lib/libmng.so.1.1.0.9
afb21000-afb25000 r-xp 00000000 08:01 538805 /usr/lib/gtk-2.0/2.10.0/loaders/libpixbufloader-png.so
afb25000-afb26000 rw-p 00003000 08:01 538805 /usr/lib/gtk-2.0/2.10.0/loaders/libpixbufloader-png.so
afb26000-afb2c000 r-xp 00000000 08:01 97837 /usr/lib/qt4/plugins/imageformats/libqtiff.so
afb2c000-afb2d000 rw-p 00006000 08:01 97837 /usr/lib/qt4/plugins/imageformats/libqtiff.so
afb2d000-afb32000 r-xp 00000000 08:01 97839 /usr/lib/qt4/plugins/imageformats/libqmng.so
afb32000-afb33000 rw-p 00004000 08:01 97839 /usr/lib/qt4/plugins/imageformats/libqmng.so
afb33000-afb3b000 r-xp 00000000 08:01 97841 /usr/lib/qt4/plugins/imageformats/libqjpeg.so
afb3b000-afb3c000 rw-p 00007000 08:01 97841 /usr/lib/qt4/plugins/imageformats/libqjpeg.so
afb3c000-afb42000 r-xp 00000000 08:01 97838 /usr/lib/qt4/plugins/imageformats/libqico.so
afb42000-afb43000 rw-p 00005000 08:01 97838 /usr/lib/qt4/plugins/imageformats/libqico.so
afb43000-afb49000 r-xp 00000000 08:01 97840 /usr/lib/qt4/plugins/imageformats/libqgif.so
afb49000-afb4a000 rw-p 00005000 08:01 97840 /usr/lib/qt4/plugins/imageformats/libqgif.so
afb4a000-afb69000 r-xp 00000000 08:01 452695 /usr/lib/libjpeg.so.62.0.0
afb69000-afb6a000 rw-p 0001e000 08:01 452695 /usr/lib/libjpeg.so.62.0.0
afb6a000-afbae000 r-xp 00000000 08:01 454222 /usr/lib/libjasper.so.1.0.0
afbae000-afbb1000 rw-p 00044000 08:01 454222 /usr/lib/libjasper.so.1.0.0
afbb1000-afbb7000 rw-p 00000000 00:00 0
afbb7000-afc76000 r-xp 00000000 08:01 3389 /usr/lib/libIlmImf.so.6.0.0
afc76000-afc78000 rw-p 000be000 08:01 3389 /usr/lib/libIlmImf.so.6.0.0
afc78000-afd04000 r-xp 00000000 08:01 489710 /usr/lib/libkfile.so.4.3.0
afd04000-afd08000 rw-p 0008b000 08:01 489710 /usr/lib/libkfile.so.4.3.0
afd08000-afdfe000 r--s 00000000 08:01 32640 /var/tmp/kdecache-celani/ksycoca4
afdfe000-b0200000 rw-p 00000000 00:00 0
b0200000-b0221000 rw-p 00000000 00:00 0
b0221000-b0300000 ---p 00000000 00:00 0
b0304000-b0314000 r-xp 00000000 08:01 499923 /usr/lib/kde4/plugins/imageformats/kimg_xcf.so
b0314000-b0315000 rw-p 0000f000 08:01 499923 /usr/lib/kde4/plugins/imageformats/kimg_xcf.so
b0315000-b0319000 rw-p 00000000 00:00 0
b0319000-b0323000 r-xp 00000000 08:01 499927 /usr/lib/kde4/plugins/imageformats/kimg_rgb.so
b0323000-b0324000 rw-p 00009000 08:01 499927 /usr/lib/kde4/plugins/imageformats/kimg_rgb.so
b0324000-b0325000 ---p 00000000 00:00 0
b0325000-b0b25000 rw-p 00000000 00:00 0
b0b25000-b0b26000 ---p 00000000 00:00 0
b0b26000-b1326000 rw-p 00000000 00:00 0
b1327000-b132a000 r-xp 00000000 08:01 97826 /usr/lib/qt4/plugins/imageformats/libqsvg.so
b132a000-b132b000 rw-p 00003000 08:01 97826 /usr/lib/qt4/plugins/imageformats/libqsvg.so
b132b000-b132f000 r-xp 00000000 08:01 499922 /usr/lib/kde4/plugins/imageformats/kimg_xview.so
b132f000-b1330000 rw-p 00003000 08:01 499922 /usr/lib/kde4/plugins/imageformats/kimg_xview.so
b1330000-b1336000 r-xp 00000000 08:01 3380 /usr/lib/libIlmThread.so.6.0.0
b1336000-b1337000 rw-p 00005000 08:01 3380 /usr/lib/libIlmThread.so.6.0.0
b1337000-b133b000 r-xp 00000000 08:01 3377 /usr/lib/libImath.so.6.0.0
b133b000-b133c000 rw-p 00004000 08:01 3377 /usr/lib/libImath.so.6.0.0
b133c000-b137e000 r-xp 00000000 08:01 3379 /usr/lib/libHalf.so.6.0.0
b137e000-b137f000 rw-p 00041000 08:01 3379 /usr/lib/libHalf.so.6.0.0
b137f000-b1393000 r-xp 00000000 08:01 3378 /usr/lib/libIex.so.6.0.0
b1393000-b1395000 rw-p 00013000 08:01 3378 /usr/lib/libIex.so.6.0.0
b1395000-b139a000 r-xp 00000000 08:01 499924 /usr/lib/kde4/plugins/imageformats/kimg_tga.so
b139a000-b139b000 rw-p 00004000 08:01 499924 /usr/lib/kde4/plugins/imageformats/kimg_tga.so
b139b000-b139f000 r-xp 00000000 08:01 499921 /usr/lib/kde4/plugins/imageformats/kimg_psd.so
b139f000-b13a0000 rw-p 00003000 08:01 499921 /usr/lib/kde4/plugins/imageformats/kimg_psd.so
b13a0000-b13a8000 r-xp 00000000 08:01 499928 /usr/lib/kde4/plugins/imageformats/kimg_pcx.so
b13a8000-b13a9000 rw-p 00007000 08:01 499928 /usr/lib/kde4/plugins/imageformats/kimg_pcx.so
b13a9000-b13ad000 r-xp 00000000 08:01 499925 /usr/lib/kde4/plugins/imageformats/kimg_jp2.so
b13ad000-b13ae000 rw-p 00003000 08:01 499925 /usr/lib/kde4/plugins/imageformats/kimg_jp2.so
b13ae000-b13b3000 r-xp 00000000 08:01 499926 /usr/lib/kde4/plugins/imageformats/kimg_exr.so
b13b3000-b13b4000 rw-p 00004000 08:01 499926 /usr/lib/kde4/plugins/imageformats/kimg_exr.so
b13b4000-b13bb000 r-xp 00000000 08:01 499929 /usr/lib/kde4/plugins/imageformats/kimg_eps.so
b13bb000-b13bc000 rw-p 00006000 08:01 499929 /usr/lib/kde4/plugins/imageformats/kimg_eps.so
b13bc000-b13c2000 r-xp 00000000 08:01 499930 /usr/lib/kde4/plugins/imageformats/kimg_dds.so
b13c2000-b13c3000 rw-p 00005000 08:01 499930 /usr/lib/kde4/plugins/imageformats/kimg_dds.so
b13c3000-b13c5000 r-xp 00000000 08:01 499942 /usr/lib/kde4/libkfilemodule.so
b13c5000-b13c6000 rw-p 00001000 08:01 499942 /usr/lib/kde4/libkfilemodule.so
b13c6000-b1452000 r--p 00000000 08:01 538163 /usr/share/fonts/truetype/ttf-dejavu/DejaVuSans-Bold.ttf
b1452000-b14d3000 rw-p 00000000 00:00 0
b14d3000-b14d6000 rw-s 00000000 00:04 4227086 /SYSV00000000 (deleted)KCrash: Application 'kdenlive' crashing...
sock_file=/home/celani/.kde/socket-gena/kdeinit4__0

[1]+ Stopped kdenlive

I have a feeling, that in the past I performed this action successful.
It is a png-file:
$ file mozart_Liber_serif_w_inch8_fs44.pdf-pages_res.png
mozart_Liber_serif_w_inch8_fs44.pdf-pages_res.png: PNG image data, 720 x 53069, 8-bit/color RGBA, non-interlaced
$ free
total used free shared buffers cached
Mem: 2009788 1783304 226484 0 23760 1513624
-/+ buffers/cache: 245920 1763868
Swap: 979924 0 979924
Thank you! Gennadiy

Which versions of Kdenlive mlt do you use?
Do the files work with "melt filename"?