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value: Make sure to cast int range values to guints before storing them

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Otherwise negative values will sets all of the 64 bits due to two's
complement's definition of negative values.

Also add a test for negative int ranges.
This commit is contained in:
Sebastian Dröge 2014-06-19 09:23:56 +02:00
parent 00ed93780d
commit 9b7da39b68
2 changed files with 25 additions and 14 deletions
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32
gst/gstvalue.c
View file

@ -980,8 +980,8 @@ gst_value_set_int_range_step (GValue * value, gint start, gint end, gint step)
g_return_if_fail (start % step == 0);
g_return_if_fail (end % step == 0);
sstart = (guint64) (start / step);
sstop = (guint64) (end / step);
sstart = (guint) (start / step);
sstop = (guint) (end / step);
value->data[0].v_uint64 = (sstart << 32) | sstop;
value->data[1].v_int = step;
}
@ -3331,8 +3331,9 @@ gst_value_union_int_int_range (GValue * dest, const GValue * src1,
/* check if it extends the range */
if (v == (INT_RANGE_MIN (src2) - 1) * INT_RANGE_STEP (src2)) {
if (dest) {
guint64 new_min = (INT_RANGE_MIN (src2) - 1) * INT_RANGE_STEP (src2);
guint64 new_max = INT_RANGE_MAX (src2) * INT_RANGE_STEP (src2);
guint64 new_min =
(guint) ((INT_RANGE_MIN (src2) - 1) * INT_RANGE_STEP (src2));
guint64 new_max = (guint) (INT_RANGE_MAX (src2) * INT_RANGE_STEP (src2));
gst_value_init_and_copy (dest, src2);
dest->data[0].v_uint64 = (new_min << 32) | (new_max);
@ -3341,8 +3342,9 @@ gst_value_union_int_int_range (GValue * dest, const GValue * src1,
}
if (v == (INT_RANGE_MAX (src2) + 1) * INT_RANGE_STEP (src2)) {
if (dest) {
guint64 new_min = INT_RANGE_MIN (src2) * INT_RANGE_STEP (src2);
guint64 new_max = (INT_RANGE_MAX (src2) + 1) * INT_RANGE_STEP (src2);
guint64 new_min = (guint) (INT_RANGE_MIN (src2) * INT_RANGE_STEP (src2));
guint64 new_max =
(guint) ((INT_RANGE_MAX (src2) + 1) * INT_RANGE_STEP (src2));
gst_value_init_and_copy (dest, src2);
dest->data[0].v_uint64 = (new_min << 32) | (new_max);
@ -3411,10 +3413,11 @@ gst_value_union_int_range_int_range (GValue * dest, const GValue * src1,
if (scalar ==
(INT_RANGE_MIN (range_value) - 1) * INT_RANGE_STEP (range_value)) {
if (dest) {
guint64 new_min =
(INT_RANGE_MIN (range_value) - 1) * INT_RANGE_STEP (range_value);
guint64 new_max =
INT_RANGE_MAX (range_value) * INT_RANGE_STEP (range_value);
guint64 new_min = (guint)
((INT_RANGE_MIN (range_value) -
1) * INT_RANGE_STEP (range_value));
guint64 new_max = (guint)
(INT_RANGE_MAX (range_value) * INT_RANGE_STEP (range_value));
gst_value_init_and_copy (dest, range_value);
dest->data[0].v_uint64 = (new_min << 32) | (new_max);
@ -3423,10 +3426,11 @@ gst_value_union_int_range_int_range (GValue * dest, const GValue * src1,
} else if (scalar ==
(INT_RANGE_MAX (range_value) + 1) * INT_RANGE_STEP (range_value)) {
if (dest) {
guint64 new_min =
INT_RANGE_MIN (range_value) * INT_RANGE_STEP (range_value);
guint64 new_max =
(INT_RANGE_MAX (range_value) + 1) * INT_RANGE_STEP (range_value);
guint64 new_min = (guint)
(INT_RANGE_MIN (range_value) * INT_RANGE_STEP (range_value));
guint64 new_max = (guint)
((INT_RANGE_MAX (range_value) +
1) * INT_RANGE_STEP (range_value));
gst_value_init_and_copy (dest, range_value);
dest->data[0].v_uint64 = (new_min << 32) | (new_max);
}

7
tests/check/gst/gstvalue.c
View file

@ -2505,6 +2505,13 @@ GST_START_TEST (test_int_range)
g_value_unset (&dest);
fail_unless (gst_value_intersect (&dest, &range, &range2) == FALSE);
gst_value_set_int_range (&range, -7, -6);
fail_unless_equals_int (gst_value_get_int_range_min (&range), -7);
fail_unless_equals_int (gst_value_get_int_range_max (&range), -6);
gst_value_set_int_range (&range, -7, 7);
fail_unless_equals_int (gst_value_get_int_range_min (&range), -7);
fail_unless_equals_int (gst_value_get_int_range_max (&range), 7);
g_value_unset (&start);
g_value_unset (&end);
g_value_unset (&range);