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avdemux: Fix segmentation fault if long_name is NULL

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Some plugins (like libcdio) registers empty long_name field. Calling strncmp on this field leads to a segmentation fault.

Signed-off-by: Kevin Joly <joly.kevin25@gmail.com>
This commit is contained in:
Kevin JOLY 2019-11-04 15:39:59 +01:00 committed by Kevin Joly
parent 07f33470b3
commit 9e56619b10
1 changed files with 8 additions and 3 deletions
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11
ext/libav/gstavdemux.c
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@ -1994,9 +1994,14 @@ gst_ffmpegdemux_register (GstPlugin * plugin)
in_plugin->name, in_plugin->long_name);
/* no emulators */
if (!strncmp (in_plugin->long_name, "raw ", 4) ||
!strncmp (in_plugin->long_name, "pcm ", 4) ||
!strcmp (in_plugin->name, "audio_device") ||
if (in_plugin->long_name != NULL) {
if (!strncmp (in_plugin->long_name, "raw ", 4) ||
!strncmp (in_plugin->long_name, "pcm ", 4)
)
continue;
}
if (!strcmp (in_plugin->name, "audio_device") ||
!strncmp (in_plugin->name, "image", 5) ||
!strcmp (in_plugin->name, "mpegvideo") ||
!strcmp (in_plugin->name, "mjpeg") ||