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plugins: find the preferred format from right caps.

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When the downstream has any caps, then raw video feature will
be used. At this situation, the preferred format should be chose
from caps which contains "vide/x-raw" feature instead of from
the fist allowed caps.

Fixes #142
This commit is contained in:
Wangfei 2019-04-11 15:05:02 +08:00 committed by Víctor Manuel Jáquez Leal
parent 39e2fe11ed
commit e88f349c6f
1 changed files with 19 additions and 8 deletions
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27
gst/vaapi/gstvaapipluginutil.c
View file

@ -698,17 +698,28 @@ gst_vaapi_find_preferred_caps_feature (GstPad * pad, GstCaps * allowed_caps,
find_format:
if (out_format_ptr) {
GstVideoFormat out_format;
GstStructure *structure;
GstStructure *structure = NULL;
const GValue *format_list;
GstCapsFeatures *features;
/* if the best feature is SystemMemory, we should use the first
* caps in the filtered peer caps set, which is the preferred by
* downstream. */
if (feature == GST_VAAPI_CAPS_FEATURE_SYSTEM_MEMORY)
/* if the best feature is SystemMemory, we should choose the
* vidoe/x-raw caps in the filtered peer caps set. If not, use
* the first caps, which is the preferred by downstream. */
if (feature == GST_VAAPI_CAPS_FEATURE_SYSTEM_MEMORY) {
gst_caps_replace (&caps, out_caps);
/* use the first caps, which is the preferred by downstream. */
structure = gst_caps_get_structure (caps, 0);
num_structures = gst_caps_get_size (caps);
for (i = 0; i < num_structures; i++) {
structure = gst_caps_get_structure (caps, i);
features = gst_caps_get_features (caps, i);
if (!gst_caps_features_is_any (features)
&& gst_caps_features_contains (features,
gst_vaapi_caps_feature_to_string
(GST_VAAPI_CAPS_FEATURE_SYSTEM_MEMORY)))
break;
}
} else {
structure = gst_caps_get_structure (caps, 0);
}
if (!structure)
goto cleanup;
format_list = gst_structure_get_value (structure, "format");