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Fix render rect when the foreign window size changes.

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This commit is contained in:
gb 2010-05-12 12:58:53 +00:00 committed by Gwenole Beauchesne
parent 601db12ccb
commit 99b1adce4f
2 changed files with 102 additions and 73 deletions
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173
gst/vaapisink/gstvaapisink.c
View file

@ -124,16 +124,15 @@ gst_vaapi_video_sink_iface_init(GstVaapiVideoSinkInterface *iface)
static GstFlowReturn
gst_vaapisink_show_frame(GstBaseSink *base_sink, GstBuffer *buffer);
static gboolean
update_display_rect(GstVaapiSink *sink, guint display_width, guint display_height);
static void
gst_vaapisink_xoverlay_set_xid(GstXOverlay *overlay, XID xid)
{
GstVaapiSink * const sink = GST_VAAPISINK(overlay);
XWindowAttributes wattr;
if (sink->window &&
gst_vaapi_window_x11_get_xid(GST_VAAPI_WINDOW_X11(sink->window)) == xid)
return;
gst_vaapi_display_lock(sink->display);
XGetWindowAttributes(
gst_vaapi_display_x11_get_display(GST_VAAPI_DISPLAY_X11(sink->display)),
@ -141,8 +140,17 @@ gst_vaapisink_xoverlay_set_xid(GstXOverlay *overlay, XID xid)
&wattr
);
gst_vaapi_display_unlock(sink->display);
sink->window_width = wattr.width;
sink->window_height = wattr.height;
if (wattr.width != sink->window_width ||
wattr.height != sink->window_height) {
update_display_rect(sink, wattr.width, wattr.height);
sink->window_width = wattr.width;
sink->window_height = wattr.height;
}
if (sink->window &&
gst_vaapi_window_x11_get_xid(GST_VAAPI_WINDOW_X11(sink->window)) == xid)
return;
if (sink->window) {
g_object_unref(sink->window);
@ -269,17 +277,83 @@ gst_vaapisink_stop(GstBaseSink *base_sink)
return TRUE;
}
static gboolean
update_display_rect(GstVaapiSink *sink, guint display_width, guint display_height)
{
GstVaapiRectangle * const display_rect = &sink->display_rect;
guint num, den, display_par_n, display_par_d;
double display_ratio;
gboolean success;
gst_vaapi_display_get_pixel_aspect_ratio(
sink->display,
&display_par_n, &display_par_d
);
success = gst_video_calculate_display_ratio(
&num, &den,
sink->video_width, sink->video_height,
sink->video_par_n, sink->video_par_d,
display_par_n, display_par_d
);
if (!success)
return FALSE;
GST_DEBUG("video size %dx%d, calculated display ratio %d/%d",
sink->video_width, sink->video_height, num, den);
if ((sink->video_height % den) == 0) {
GST_DEBUG("keeping video height");
display_rect->width =
gst_util_uint64_scale_int(sink->video_height, num, den);
display_rect->height = sink->video_height;
}
else if ((sink->video_width % num) == 0) {
GST_DEBUG("keeping video width");
display_rect->width = sink->video_width;
display_rect->height =
gst_util_uint64_scale_int(sink->video_width, den, num);
}
else {
GST_DEBUG("approximating while keeping video height");
display_rect->width =
gst_util_uint64_scale_int(sink->video_height, num, den);
display_rect->height = sink->video_height;
}
display_ratio = (gdouble)display_rect->width / display_rect->height;
GST_DEBUG("scaling to %ux%u", display_rect->width, display_rect->height);
if (sink->fullscreen ||
display_rect->width > display_width ||
display_rect->height > display_height) {
if (sink->video_width > sink->video_height) {
display_rect->width = display_width;
display_rect->height = display_width / display_ratio;
}
else {
display_rect->width = display_height * display_ratio;
display_rect->height = display_height;
}
}
GST_DEBUG("display size %ux%u", display_rect->width, display_rect->height);
if (sink->fullscreen) {
display_rect->x = (display_width - display_rect->width) / 2;
display_rect->y = (display_height - display_rect->height) / 2;
}
else {
display_rect->x = 0;
display_rect->y = 0;
}
return TRUE;
}
static gboolean
gst_vaapisink_set_caps(GstBaseSink *base_sink, GstCaps *caps)
{
GstVaapiSink * const sink = GST_VAAPISINK(base_sink);
GstStructure * const structure = gst_caps_get_structure(caps, 0);
GstVaapiRectangle * const disp_rect = &sink->display_rect;
guint num, den;
guint win_width, win_height;
guint display_width, display_height, display_par_n, display_par_d;
guint display_width, display_height, win_width, win_height;
gint video_width, video_height, video_par_n = 1, video_par_d = 1;
gdouble win_ratio;
if (!structure)
return FALSE;
@ -291,79 +365,30 @@ gst_vaapisink_set_caps(GstBaseSink *base_sink, GstCaps *caps)
sink->video_height = video_height;
gst_video_parse_caps_pixel_aspect_ratio(caps, &video_par_n, &video_par_d);
sink->video_par_n = video_par_n;
sink->video_par_d = video_par_d;
gst_vaapi_display_get_size(sink->display, &display_width, &display_height);
gst_vaapi_display_get_pixel_aspect_ratio(
sink->display,
&display_par_n, &display_par_d
);
if (!gst_video_calculate_display_ratio(&num, &den,
video_width, video_height,
video_par_n, video_par_d,
display_par_n, display_par_d))
if (!update_display_rect(sink, display_width, display_height))
return FALSE;
GST_DEBUG("video size %dx%d, calculated display ratio %d/%d",
video_width, video_height, num, den);
if ((video_height % den) == 0) {
GST_DEBUG("keeping video height");
win_width = gst_util_uint64_scale_int(video_height, num, den);
win_height = video_height;
}
else if ((video_width % num) == 0) {
GST_DEBUG("keeping video width");
win_width = video_width;
win_height = gst_util_uint64_scale_int(video_width, den, num);
}
else {
GST_DEBUG("approximating while keeping video height");
win_width = gst_util_uint64_scale_int (video_height, num, den);
win_height = video_height;
}
win_ratio = (gdouble)win_width / win_height;
GST_DEBUG("scaling to %ux%u", win_width, win_height);
if (sink->fullscreen ||
win_width > display_width || win_height > display_height) {
if (video_width > video_height) {
win_width = display_width;
win_height = display_width / win_ratio;
}
else {
win_width = display_height * win_ratio;
win_height = display_height;
}
}
GST_DEBUG("window size %ux%u", win_width, win_height);
if (!sink->window) {
gst_vaapi_display_lock(sink->display);
gst_x_overlay_prepare_xwindow_id(GST_X_OVERLAY(sink));
gst_vaapi_display_unlock(sink->display);
if (sink->window) {
win_width = sink->window_width;
win_height = sink->window_height;
}
}
if (sink->fullscreen) {
disp_rect->x = (display_width - win_width) / 2;
disp_rect->y = (display_height - win_height) / 2;
win_width = display_width;
win_height = display_height;
}
else {
disp_rect->x = 0;
disp_rect->y = 0;
win_width = sink->display_rect.width;
win_height = sink->display_rect.height;
}
disp_rect->width = win_width;
disp_rect->height = win_height;
if (sink->window)
gst_vaapi_window_set_size(sink->window, win_width, win_height);
else {
if (sink->fullscreen) {
win_width = display_width;
win_height = display_height;
}
gst_vaapi_display_lock(sink->display);
gst_x_overlay_prepare_xwindow_id(GST_X_OVERLAY(sink));
gst_vaapi_display_unlock(sink->display);
if (sink->window)
return TRUE;
if (!gst_vaapisink_ensure_window(sink, win_width, win_height))
return FALSE;
gst_vaapi_window_set_fullscreen(sink->window, sink->fullscreen);
@ -768,6 +793,8 @@ gst_vaapisink_init(GstVaapiSink *sink, GstVaapiSinkClass *klass)
sink->texture = NULL;
sink->video_width = 0;
sink->video_height = 0;
sink->video_par_n = 1;
sink->video_par_d = 1;
sink->fullscreen = FALSE;
sink->synchronous = FALSE;
sink->use_glx = USE_VAAPISINK_GLX;

2
gst/vaapisink/gstvaapisink.h
View file

@ -74,6 +74,8 @@ struct _GstVaapiSink {
GstVaapiTexture *texture;
guint video_width;
guint video_height;
gint video_par_n;
gint video_par_d;
GstVaapiRectangle display_rect;
guint fullscreen : 1;
guint synchronous : 1;