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dashdemux: parser rejects negative values for mediaPresentationDuration

Browse source 
https://bugzilla.gnome.org/show_bug.cgi?id=752326
This commit is contained in:
Florin Apostol 2015-10-28 16:31:39 +00:00 committed by Vincent Penquerc'h
parent 7c2746f741
commit cdfec06092
2 changed files with 40 additions and 0 deletions
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7
ext/dash/gstmpdparser.c
View file

@ -4136,6 +4136,13 @@ gst_mpd_client_setup_media_presentation (GstMpdClient * client,
idx = 0;
start = 0;
duration = GST_CLOCK_TIME_NONE;
if (client->mpd_node->mediaPresentationDuration <= 0 &&
client->mpd_node->mediaPresentationDuration != -1) {
/* Invalid MPD file: MPD duration is negative or zero */
goto syntax_error;
}
for (list = client->mpd_node->Periods; list; /* explicitly advanced below */ ) {
GstPeriodNode *period_node = list->data;
GstPeriodNode *next_period_node = NULL;

33
tests/check/elements/dash_mpd.c
View file

@ -4599,6 +4599,37 @@ GST_START_TEST (dash_mpdparser_read_unsigned_from_negative_values)
GST_END_TEST;
/*
* Test negative mediaPresentationDuration duration
*/
GST_START_TEST (dash_mpdparser_negative_mediaPresentationDuration)
{
const gchar *xml =
"<?xml version=\"1.0\"?>"
"<MPD xmlns=\"urn:mpeg:dash:schema:mpd:2011\""
" profiles=\"urn:mpeg:dash:profile:isoff-main:2011\""
" availabilityStartTime=\"2015-03-24T0:0:0\""
" mediaPresentationDuration=\"-P0Y0M0DT3H3M30S\">"
" <Period id=\"Period0\" start=\"P0Y0M0DT1H0M0S\"></Period></MPD>";
gboolean ret;
GstMpdClient *mpdclient = gst_mpd_client_new ();
ret = gst_mpd_parse (mpdclient, xml, (gint) strlen (xml));
assert_equals_int (ret, TRUE);
/* process the xml data
* should fail due to negative duration of mediaPresentationDuration
*/
ret = gst_mpd_client_setup_media_presentation (mpdclient, GST_CLOCK_TIME_NONE,
-1, NULL);
assert_equals_int (ret, FALSE);
gst_mpd_client_free (mpdclient);
}
GST_END_TEST;
/*
* create a test suite containing all dash testcases
*/
@ -4760,6 +4791,8 @@ dash_suite (void)
tcase_add_test (tc_negativeTests, dash_mpdparser_negative_period_duration);
tcase_add_test (tc_negativeTests,
dash_mpdparser_read_unsigned_from_negative_values);
tcase_add_test (tc_negativeTests,
dash_mpdparser_negative_mediaPresentationDuration);
tcase_add_test (tc_stringTests, dash_mpdparser_whitespace_strings);
tcase_add_test (tc_stringTests, dash_mpdparser_rfc1738_strings);