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Size window so that to respect the video and pixel aspect ratio.

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gb 2010-03-22 10:03:24 +00:00
parent c13c3c3620
commit 57c69b85eb
1 changed files with 58 additions and 6 deletions
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64
sys/vaapisink/gstvaapisink.c
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@ -140,19 +140,71 @@ 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);
gint width, height;
guint num, den;
guint win_width, win_height;
guint display_width, display_height, display_par_n, display_par_d;
gint video_width, video_height, video_par_n = 1, video_par_d = 1;
gdouble win_ratio;
if (!structure)
return FALSE;
if (!gst_structure_get_int(structure, "width", &width))
if (!gst_structure_get_int(structure, "width", &video_width))
return FALSE;
if (!gst_structure_get_int(structure, "height", &height))
if (!gst_structure_get_int(structure, "height", &video_height))
return FALSE;
if (sink->window)
gst_vaapi_window_set_size(sink->window, width, height);
gst_video_parse_caps_pixel_aspect_ratio(caps, &video_par_n, &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))
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 {
sink->window = gst_vaapi_window_x11_new(sink->display, width, height);
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 (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_window_set_size(sink->window, win_width, win_height);
else {
sink->window = gst_vaapi_window_x11_new(
sink->display,
win_width, win_height
);
if (!sink->window)
return FALSE;
gst_vaapi_window_show(sink->window);