From 50890a27e2333e3471fe37f05371b4959cf2a363 Mon Sep 17 00:00:00 2001 From: Hugues Fruchet Date: Tue, 8 Oct 2024 10:51:13 +0200 Subject: [PATCH 2/7] waylandsink: match drm kernel driver alignment This workaround is needed to render not 128 bytes aligned YUV420 planar content. For example: $> gst-launch-1.0 videotestsrc ! video/x-raw, format=I420 ! waylandsink This workaround may be dropped when switching to DRM modifier implementation introduced in GStreamer-1.24. Signed-off-by: Hugues Fruchet Upstream-Status: Pending --- ext/wayland/gstwaylandsink.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/ext/wayland/gstwaylandsink.c b/ext/wayland/gstwaylandsink.c index d98c53f..9254b73 100644 --- a/ext/wayland/gstwaylandsink.c +++ b/ext/wayland/gstwaylandsink.c @@ -692,6 +692,8 @@ gst_wayland_sink_set_caps (GstBaseSink * bsink, GstCaps * caps) GstWaylandSink *self = GST_WAYLAND_SINK (bsink);; gboolean use_dmabuf; GstVideoFormat format; + GstVideoAlignment alignment; + guint width; GST_DEBUG_OBJECT (self, "set caps %" GST_PTR_FORMAT, caps); @@ -699,6 +701,16 @@ gst_wayland_sink_set_caps (GstBaseSink * bsink, GstCaps * caps) if (!gst_video_info_from_caps (&self->video_info, caps)) goto invalid_format; + /* + * stick to DRM kernel driver alignment (128 bytes) to avoid + * any board effects due to size mismatch when switching + * later-on with DRM dumb allocated buffers + */ + gst_video_alignment_reset (&alignment); + width = GST_VIDEO_INFO_WIDTH (&self->video_info); + alignment.padding_right = GST_ROUND_UP_128 (width) - width; + gst_video_info_align (&self->video_info, &alignment); + format = GST_VIDEO_INFO_FORMAT (&self->video_info); self->video_info_changed = TRUE; self->skip_dumb_buffer_copy = FALSE; -- 2.25.1