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vaapipostproc: don't do any color conversion when GL_TEXTURE_UPLOAD

Browse source 
https://bugzilla.gnome.org/show_bug.cgi?id=748184 has resurrected
with commit 3e992d8a

Since gst_vaapi_find_preferred_caps_feature() returns a color format
from caps negotiation, different from the default one (NV12), the
postproc enables the color transformation. But when GL_TEXTURE_UPLOAD
feature is negotiated, no color transformation shall be done.

Nonetheless, with commit 3e992d8a the requested format changes
firstly, because there's no video sink yet, so ANY caps are
negotiated; but later, when there's a video sink and a caps
renegotiation, the GL_TEXTURE_UPLOAD is negotiated though the color
format conversion still ongoing. It is required to reset that
conversion.

This patch force default color format when GL_TEXTURE_UPLOAD is
selected as preferred, thus avoiding the color conversion.

Fixes: #157
This commit is contained in:
Víctor Manuel Jáquez Leal 2019-05-02 16:00:57 +02:00
parent aa37f31d54
commit 838045b9e2
1 changed files with 4 additions and 2 deletions
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6
gst/vaapi/gstvaapipostprocutil.c
View file

@ -709,9 +709,11 @@ _get_preferred_caps (GstVaapiPostproc * postproc, GstVideoInfo * vinfo,
/* we don't need to do format conversion if GL_TEXTURE_UPLOAD_META
* is negotiated */
if (f != GST_VAAPI_CAPS_FEATURE_GL_TEXTURE_UPLOAD_META
&& postproc->format != format)
if (f == GST_VAAPI_CAPS_FEATURE_GL_TEXTURE_UPLOAD_META) {
postproc->format = DEFAULT_FORMAT;
} else if (postproc->format != format) {
postproc->format = format;
}
return outcaps;