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gtkgstsink: Sync texture before handing it to GDK

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We need to synchronize when moving the texture between contexts, or we
get glitches with VA-API decoding.
This commit is contained in:
Jan Alexander Steffens (heftig) 2021-01-25 22:43:11 +01:00
parent b37a69d76c
commit 4644dab081
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1 changed files with 14 additions and 0 deletions
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14
modules/media/gtkgstsink.c
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@ -35,6 +35,8 @@
#include <gst/gl/wayland/gstgldisplay_wayland.h>
#endif
#include <gst/gl/gstglfuncs.h>
enum {
PROP_0,
PROP_PAINTABLE,
@ -204,6 +206,7 @@ gtk_gst_sink_propose_allocation (GstBaseSink *bsink,
config = gst_buffer_pool_get_config (pool);
gst_buffer_pool_config_set_params (config, caps, size, 0, 0);
gst_buffer_pool_config_add_option (config, GST_BUFFER_POOL_OPTION_GL_SYNC_META);
if (!gst_buffer_pool_set_config (pool, config))
{
@ -221,6 +224,9 @@ gtk_gst_sink_propose_allocation (GstBaseSink *bsink,
/* we also support various metadata */
gst_query_add_allocation_meta (query, GST_VIDEO_META_API_TYPE, 0);
if (self->gst_context->gl_vtable->FenceSync)
gst_query_add_allocation_meta (query, GST_GL_SYNC_META_API_TYPE, 0);
return TRUE;
}
@ -265,6 +271,14 @@ gtk_gst_sink_texture_from_buffer (GtkGstSink *self,
if (self->gdk_context &&
gst_video_frame_map (frame, &self->v_info, buffer, GST_MAP_READ | GST_MAP_GL))
{
GstGLSyncMeta *sync_meta;
sync_meta = gst_buffer_get_gl_sync_meta (buffer);
if (sync_meta) {
gst_gl_sync_meta_set_sync_point (sync_meta, self->gst_context);
gst_gl_sync_meta_wait (sync_meta, self->gst_context);
}
texture = gdk_gl_texture_new (self->gdk_context,
*(guint *) frame->data[0],
frame->info.width,