Hi,
during debugging a program that uses mlt i found a lot of leaks in mlt
framework.
i prepared very small program that opens producer only (see attached)
running valgrind
valgrind -v --leak-check=full --error-limit=no --leak-resolution=high
--show-reachable=yes ./mlt_play
reports tons of errors, and among them:
[...]
==8838== 40 bytes in 1 blocks are definitely lost in loss record 2 of 19
==8838== at 0x4A074CD: malloc (vg_replace_malloc.c:236)
==8838== by 0xC0B8654: ???
==8838== by 0xCA5E29F: ???
==8838== by 0xC0B8209: ???
==8838== by 0xC0B8576: ???
==8838== by 0x4C48439: mlt_factory_producer (mlt_factory.c:291)
==8838== by 0xB67FB31: ???
==8838== by 0xB67FE33: ???
==8838== by 0x4C48439: mlt_factory_producer (mlt_factory.c:291)
==8838== by 0x4007C4: main (mlt_play.c:11)
==8838==
==8838== 40 bytes in 1 blocks are definitely lost in loss record 3 of 19
==8838== at 0x4A074CD: malloc (vg_replace_malloc.c:236)
==8838== by 0xC0B8654: ???
==8838== by 0xCA5E2B2: ???
==8838== by 0xC0B8209: ???
==8838== by 0xC0B8576: ???
==8838== by 0x4C48439: mlt_factory_producer (mlt_factory.c:291)
==8838== by 0xB67FB31: ???
==8838== by 0xB67FE33: ???
==8838== by 0x4C48439: mlt_factory_producer (mlt_factory.c:291)
==8838== by 0x4007C4: main (mlt_play.c:11)
==8838==
[...]
is it a bug or i forget to free some resources?
--
________________________________________
Maksym Veremeyenko
#include <stdio.h>
#include <unistd.h>
#include <framework/mlt.h>
/* comment next line to test mem leak for real playback */
#define MINIMAL
/* comment next line to test mem leak on error */
#define FILE_EXISTING "/tmp/probe5.mov"
#ifdef FILE_EXISTING
#define FILE_TO_USE FILE_EXISTING
#else
#define FILE_TO_USE "/tmp/blabla.mov"
#endif
int main( int argc, char *argv[] )
{
mlt_repository repo = mlt_factory_init(NULL);
mlt_profile profile = mlt_profile_init("dv_pal");
mlt_producer producer = mlt_factory_producer(profile, NULL, FILE_TO_USE);
#ifndef MINIMAL
mlt_consumer consumer = mlt_factory_consumer(profile, "decklink", "0");
mlt_playlist playlist = mlt_playlist_init();
mlt_properties_set(mlt_playlist_properties(playlist), "eof", "loop");
mlt_playlist_append(playlist, producer);
mlt_producer_close(producer);
mlt_consumer_connect(consumer, MLT_PLAYLIST_SERVICE(playlist));
mlt_consumer_start(consumer);
sleep(10);
mlt_consumer_stop(consumer);
mlt_consumer_close(consumer);
mlt_playlist_close(playlist);
#else
mlt_producer_close(producer);
#endif
mlt_profile_close(profile);
mlt_factory_close();
return 0;
};
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