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convertframe: Add support for GL-memory backend GstFrame input

Browse source 
Add "gldownload" early in the pipeline so that GL-memory backed raw
frames can be downloaded and processed on the CPU.

Closes: 
Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1916>
This commit is contained in:
Bastien Nocera 2022-03-10 10:25:53 +01:00 committed by GStreamer Marge Bot
parent e5bd9839c4
commit bd39ad4519
2 changed files with 40 additions and 5 deletions
subprojects/gst-plugins-base
gst-libs/gst/video
convertframe.c
meson.build

44
subprojects/gst-plugins-base/gst-libs/gst/video/convertframe.c
View file

@ -24,6 +24,9 @@
#include <string.h>
#include "video.h"
#ifdef HAVE_GL
#include <gst/gl/gstglmemory.h>
#endif
static gboolean
caps_are_raw (const GstCaps * caps)
@ -117,8 +120,17 @@ build_convert_frame_pipeline (GstElement ** src_element,
{
GstElement *vcrop = NULL, *csp = NULL, *csp2 = NULL, *vscale = NULL;
GstElement *src = NULL, *sink = NULL, *encoder = NULL, *pipeline;
GstElement *dl = NULL;
GstVideoInfo info;
GError *error = NULL;
#ifdef HAVE_GL
GstCapsFeatures *features;
features = gst_caps_get_features (from_caps, 0);
if (gst_caps_features_contains (features, GST_CAPS_FEATURE_MEMORY_GL_MEMORY))
if (!create_element ("gldownload", &dl, &error))
goto no_elements;
#endif
if (cmeta) {
if (!create_element ("videocrop", &vcrop, &error)) {
@ -150,6 +162,8 @@ build_convert_frame_pipeline (GstElement ** src_element,
gst_bin_add_many (GST_BIN (pipeline), src, csp, vscale, sink, NULL);
if (vcrop)
gst_bin_add_many (GST_BIN (pipeline), vcrop, csp2, NULL);
if (dl)
gst_bin_add (GST_BIN (pipeline), dl);
/* set caps */
g_object_set (src, "caps", from_caps, NULL);
@ -168,9 +182,19 @@ build_convert_frame_pipeline (GstElement ** src_element,
/* FIXME: linking is still way too expensive, profile this properly */
if (vcrop) {
GST_DEBUG ("linking src->csp2");
if (!gst_element_link_pads (src, "src", csp2, "sink"))
goto link_failed;
if (!dl) {
GST_DEBUG ("linking src->csp2");
if (!gst_element_link_pads (src, "src", csp2, "sink"))
goto link_failed;
} else {
GST_DEBUG ("linking src->dl");
if (!gst_element_link_pads (src, "src", dl, "sink"))
goto link_failed;
GST_DEBUG ("linking dl->csp2");
if (!gst_element_link_pads (dl, "src", csp2, "sink"))
goto link_failed;
}
GST_DEBUG ("linking csp2->vcrop");
if (!gst_element_link_pads (csp2, "src", vcrop, "sink"))
@ -181,8 +205,18 @@ build_convert_frame_pipeline (GstElement ** src_element,
goto link_failed;
} else {
GST_DEBUG ("linking src->csp");
if (!gst_element_link_pads (src, "src", csp, "sink"))
goto link_failed;
if (!dl) {
if (!gst_element_link_pads (src, "src", csp, "sink"))
goto link_failed;
} else {
GST_DEBUG ("linking src->dl");
if (!gst_element_link_pads (src, "src", dl, "sink"))
goto link_failed;
GST_DEBUG ("linking dl->csp");
if (!gst_element_link_pads (dl, "src", csp, "sink"))
goto link_failed;
}
}
GST_DEBUG ("linking csp->vscale");

1
subprojects/gst-plugins-base/meson.build
View file

@ -492,6 +492,7 @@ subdir('scripts')
base_libraries = ['allocators', 'app', 'audio', 'fft', 'pbutils', 'riff', 'rtp', 'rtsp', 'sdp', 'tag', 'video']
if build_gstgl
core_conf.set('HAVE_GL', 1)
base_libraries += 'gl'
endif