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dvdreadsrc: improve error messages on read errors

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Provide proper i18n-ed error messages when a read error happens,
and point out that the error could be happening because the
DVD is scrambled.

https://bugzilla.gnome.org/show_bug.cgi?id=613633
This commit is contained in:
Tim-Philipp Müller 2010-09-26 19:24:08 +01:00
parent b369f1d714
commit 7192b9f6b3
1 changed files with 28 additions and 1 deletions
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29
ext/dvdread/dvdreadsrc.c
View file

@ -885,6 +885,25 @@ block_read_error:
}
}
/* we don't cache the result on purpose */
static gboolean
gst_dvd_read_descrambler_available (void)
{
GModule *module;
gpointer sym;
gsize res;
module = g_module_open ("libdvdcss", 0);
if (module != NULL) {
res = g_module_symbol (module, "dvdcss_open", &sym);
g_module_close (module);
} else {
res = FALSE;
}
return res;
}
static GstFlowReturn
gst_dvd_read_src_create (GstPushSrc * pushsrc, GstBuffer ** p_buf)
{
@ -928,7 +947,15 @@ gst_dvd_read_src_create (GstPushSrc * pushsrc, GstBuffer ** p_buf)
switch (res) {
case GST_DVD_READ_ERROR:{
GST_ELEMENT_ERROR (src, RESOURCE, READ, (NULL), (NULL));
/* FIXME: figure out a way to detect if scrambling is the problem */
if (!gst_dvd_read_descrambler_available ()) {
GST_ELEMENT_ERROR (src, RESOURCE, READ,
(_("Could not read DVD. This may be because the DVD is encrypted "
"and a DVD decryption library is not installed.")), (NULL));
} else {
GST_ELEMENT_ERROR (src, RESOURCE, READ, (_("Could not read DVD.")),
(NULL));
}
return GST_FLOW_ERROR;
}
case GST_DVD_READ_EOS:{