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msdk: Add function to specify string array parameters

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Sometimes it is necessary to manually specify string parameters
of multiple options, such as format, interlace-mode, etc.
Add function to support this requirment.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/4177>
This commit is contained in:
Yinhang Liu 2023-02-23 16:33:42 +08:00 committed by GStreamer Marge Bot
parent 1f8d939559
commit 7aa0b29da8
2 changed files with 58 additions and 0 deletions
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54
subprojects/gst-plugins-bad/sys/msdk/gstmsdkcaps.c
View file

@ -186,6 +186,22 @@ _list_append_string (GValue * list, const gchar * str)
g_value_unset (&gval);
}
static gboolean
_strings_to_list (const gchar * strings, GValue * list)
{
gchar **strs = NULL;
if (!strings || !list)
return FALSE;
strs = g_strsplit (strings, DEFAULT_DELIMITER, 0);
for (guint i = 0; strs[i]; i++)
_list_append_string (list, strs[i]);
g_strfreev (strs);
return TRUE;
}
static const gchar *
_get_media_type (guint codec)
{
@ -1004,3 +1020,41 @@ failed:
}
#endif
gboolean
gst_msdkcaps_set_strings (GstCaps * caps,
const gchar * features, const char *field, const gchar * strings)
{
GValue list = G_VALUE_INIT;
guint size = gst_caps_get_size (caps);
g_return_val_if_fail (GST_IS_CAPS (caps), FALSE);
g_return_val_if_fail (field != NULL, FALSE);
g_return_val_if_fail (strings != NULL, FALSE);
g_value_init (&list, GST_TYPE_LIST);
_strings_to_list (strings, &list);
if (features) {
GstStructure *s = NULL;
GstCapsFeatures *f = gst_caps_features_from_string (features);
for (guint i = 0; i < size; i++) {
if (gst_caps_features_is_equal (f, gst_caps_get_features (caps, i))) {
s = gst_caps_get_structure (caps, i);
break;
}
}
if (!s)
return FALSE;
gst_structure_set_value (s, field, &list);
} else {
gst_caps_set_value (caps, field, &list);
}
g_value_unset (&list);
return TRUE;
}

4
subprojects/gst-plugins-bad/sys/msdk/gstmsdkcaps.h
View file

@ -48,6 +48,10 @@ gst_msdkcaps_enc_create_caps (GstMsdkContext * context,
gpointer enc_description, guint codec_id,
GstCaps ** sink_caps, GstCaps ** src_caps);
gboolean
gst_msdkcaps_set_strings (GstCaps * caps,
const gchar * features, const char * field, const gchar * strings);
G_END_DECLS
#endif /* __GST_MSDKCAPS_H__ */