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dshowvideosrc: handle empty strings for device and device-name

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The device and device-name properties should treat NULL and empty strings the same
This commit is contained in:
Joshua M. Doe 2018-10-12 09:59:54 -04:00 committed by Nirbheek Chauhan
parent 73a84148d3
commit 8f7641bf3c
2 changed files with 15 additions and 15 deletions
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5
sys/dshowsrcwrapper/gstdshow.cpp
View file

@ -338,11 +338,12 @@ gst_dshow_getdevice_from_devicename (const GUID * device_category,
GST_DEBUG ("Found device idx=%d: device-name='%s'",
devidx, friendly_name);
if (!*device_name && devidx == *device_index) {
if ((!*device_name || !**device_name) && devidx == *device_index) {
g_free (*device_name);
*device_name = g_strdup (friendly_name);
}
if (*device_name && _stricmp (*device_name, friendly_name) == 0) {
if ((*device_name && **device_name) && _stricmp (*device_name, friendly_name) == 0) {
WCHAR *wszDisplayName = NULL;
hres = moniker->GetDisplayName (NULL, NULL, &wszDisplayName);
if (hres == S_OK && wszDisplayName) {

25
sys/dshowsrcwrapper/gstdshowvideosrc.cpp
View file

@ -280,23 +280,21 @@ gst_dshowvideosrc_set_property (GObject * object, guint prop_id,
switch (prop_id) {
case PROP_DEVICE:
{
if (src->device) {
g_free (src->device);
src->device = NULL;
}
if (g_value_get_string (value)) {
src->device = g_strdup (g_value_get_string (value));
const gchar *device = g_value_get_string (value);
g_free (src->device);
src->device = NULL;
if (device && strlen (device) != 0) {
src->device = g_value_dup_string (value);
}
break;
}
case PROP_DEVICE_NAME:
{
if (src->device_name) {
g_free (src->device_name);
src->device_name = NULL;
}
if (g_value_get_string (value)) {
src->device_name = g_strdup (g_value_get_string (value));
const gchar *device_name = g_value_get_string (value);
g_free (src->device_name);
src->device_name = NULL;
if (device_name && strlen (device_name) != 0) {
src->device_name = g_value_dup_string (value);
}
break;
}
@ -356,9 +354,10 @@ gst_dshowvideosrc_create_capture_filter(GstDshowVideoSrc * src)
gunichar2 *unidevice = NULL;
/* device will be used first, then device-name, then device-index */
if (!src->device) {
if (!src->device || src->device[0] == '\0') {
GST_DEBUG_OBJECT (src, "No device set, will enumerate to match device-name or device-index");
g_free (src->device);
src->device =
gst_dshow_getdevice_from_devicename (&CLSID_VideoInputDeviceCategory,
&src->device_name, &src->device_index);