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waylandsink: Stop modifying the display GstVideoInfo

Browse source 
The video_info is supposed to match the display dimentions, but as soon as we
get a padded video buffer, we modify it. This has side effect later on and
maybe cause bad frames.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3801>
This commit is contained in:
Nicolas Dufresne 2023-02-15 12:13:16 -05:00 committed by GStreamer Marge Bot
parent beaff76dd0
commit 3ed0d34065
2 changed files with 16 additions and 24 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

22
subprojects/gst-plugins-bad/ext/gtk/gstgtkwaylandsink.c
View file

@ -982,7 +982,7 @@ gst_gtk_wayland_sink_show_frame (GstVideoSink * vsink, GstBuffer * buffer)
GstWlBuffer *wlbuffer;
GstVideoMeta *vmeta;
GstVideoFormat format;
GstVideoInfo old_vinfo;
GstVideoInfo src_vinfo;
GstMemory *mem;
struct wl_buffer *wbuf = NULL;
@ -1023,23 +1023,23 @@ gst_gtk_wayland_sink_show_frame (GstVideoSink * vsink, GstBuffer * buffer)
/* update video info from video meta */
mem = gst_buffer_peek_memory (buffer, 0);
old_vinfo = priv->video_info;
src_vinfo = priv->video_info;
vmeta = gst_buffer_get_video_meta (buffer);
if (vmeta) {
gint i;
for (i = 0; i < vmeta->n_planes; i++) {
priv->video_info.offset[i] = vmeta->offset[i];
priv->video_info.stride[i] = vmeta->stride[i];
src_vinfo.offset[i] = vmeta->offset[i];
src_vinfo.stride[i] = vmeta->stride[i];
}
priv->video_info.size = gst_buffer_get_size (buffer);
src_vinfo.size = gst_buffer_get_size (buffer);
}
GST_LOG_OBJECT (self,
"buffer %" GST_PTR_FORMAT " does not have a wl_buffer from our "
"display, creating it", buffer);
format = GST_VIDEO_INFO_FORMAT (&priv->video_info);
format = GST_VIDEO_INFO_FORMAT (&src_vinfo);
if (gst_wl_display_check_format_for_dmabuf (priv->display, format)) {
guint i, nb_dmabuf = 0;
@ -1049,21 +1049,17 @@ gst_gtk_wayland_sink_show_frame (GstVideoSink * vsink, GstBuffer * buffer)
if (nb_dmabuf && (nb_dmabuf == gst_buffer_n_memory (buffer)))
wbuf = gst_wl_linux_dmabuf_construct_wl_buffer (buffer, priv->display,
&priv->video_info);
&src_vinfo);
}
if (!wbuf && gst_wl_display_check_format_for_shm (priv->display, format)) {
if (gst_buffer_n_memory (buffer) == 1 && gst_is_fd_memory (mem))
wbuf = gst_wl_shm_memory_construct_wl_buffer (mem, priv->display,
&priv->video_info);
&src_vinfo);
/* If nothing worked, copy into our internal pool */
if (!wbuf) {
GstVideoFrame src, dst;
GstVideoInfo src_info = priv->video_info;
/* rollback video info changes */
priv->video_info = old_vinfo;
/* we don't know how to create a wl_buffer directly from the provided
* memory, so we have to copy the data to shm memory that we know how
@ -1115,7 +1111,7 @@ gst_gtk_wayland_sink_show_frame (GstVideoSink * vsink, GstBuffer * buffer)
GST_MAP_WRITE))
goto dst_map_failed;
if (!gst_video_frame_map (&src, &src_info, buffer, GST_MAP_READ)) {
if (!gst_video_frame_map (&src, &src_vinfo, buffer, GST_MAP_READ)) {
gst_video_frame_unmap (&dst);
goto src_map_failed;
}

18
subprojects/gst-plugins-bad/ext/wayland/gstwaylandsink.c
View file

@ -741,7 +741,7 @@ gst_wayland_sink_show_frame (GstVideoSink * vsink, GstBuffer * buffer)
GstWlBuffer *wlbuffer;
GstVideoMeta *vmeta;
GstVideoFormat format;
GstVideoInfo old_vinfo;
GstVideoInfo src_vinfo;
GstMemory *mem;
struct wl_buffer *wbuf = NULL;
@ -794,16 +794,16 @@ gst_wayland_sink_show_frame (GstVideoSink * vsink, GstBuffer * buffer)
/* update video info from video meta */
mem = gst_buffer_peek_memory (buffer, 0);
old_vinfo = self->video_info;
src_vinfo = self->video_info;
vmeta = gst_buffer_get_video_meta (buffer);
if (vmeta) {
gint i;
for (i = 0; i < vmeta->n_planes; i++) {
self->video_info.offset[i] = vmeta->offset[i];
self->video_info.stride[i] = vmeta->stride[i];
src_vinfo.offset[i] = vmeta->offset[i];
src_vinfo.stride[i] = vmeta->stride[i];
}
self->video_info.size = gst_buffer_get_size (buffer);
src_vinfo.size = gst_buffer_get_size (buffer);
}
GST_LOG_OBJECT (self,
@ -820,7 +820,7 @@ gst_wayland_sink_show_frame (GstVideoSink * vsink, GstBuffer * buffer)
if (nb_dmabuf && (nb_dmabuf == gst_buffer_n_memory (buffer)))
wbuf = gst_wl_linux_dmabuf_construct_wl_buffer (buffer, self->display,
&self->video_info);
&src_vinfo);
}
if (!wbuf && gst_wl_display_check_format_for_shm (self->display, format)) {
@ -831,10 +831,6 @@ gst_wayland_sink_show_frame (GstVideoSink * vsink, GstBuffer * buffer)
/* If nothing worked, copy into our internal pool */
if (!wbuf) {
GstVideoFrame src, dst;
GstVideoInfo src_info = self->video_info;
/* rollback video info changes */
self->video_info = old_vinfo;
/* we don't know how to create a wl_buffer directly from the provided
* memory, so we have to copy the data to shm memory that we know how
@ -886,7 +882,7 @@ gst_wayland_sink_show_frame (GstVideoSink * vsink, GstBuffer * buffer)
GST_MAP_WRITE))
goto dst_map_failed;
if (!gst_video_frame_map (&src, &src_info, buffer, GST_MAP_READ)) {
if (!gst_video_frame_map (&src, &src_vinfo, buffer, GST_MAP_READ)) {
gst_video_frame_unmap (&dst);
goto src_map_failed;
}