gstreamer/tests/test-subpicture.c

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/*
* test-subpicture.c - Test GstVaapiSubpicture
*
* Copyright (C) <2011-2013> Intel Corporation
* Copyright (C) <2011> Collabora Ltd.
* Copyright (C) <2011> Thibault Saunier <thibault.saunier@collabora.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include "gst/vaapi/sysdeps.h"
#include <string.h>
#include <gst/vaapi/gstvaapisurface.h>
#include "decoder.h"
#include "output.h"
#include "test-subpicture-data.h"
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static inline void
pause (void)
{
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g_print ("Press any key to continue...\n");
getchar ();
}
static gchar *g_codec_str;
static gdouble g_global_alpha = 1.0;
static GOptionEntry g_options[] = {
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{"codec", 'c',
0,
G_OPTION_ARG_STRING, &g_codec_str,
"codec to test", NULL},
{"global-alpha", 'g',
0,
G_OPTION_ARG_DOUBLE, &g_global_alpha,
"global-alpha value", NULL},
{NULL,}
};
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static void
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upload_subpicture (GstBuffer * buffer, const VideoSubpictureInfo * subinfo)
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{
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const guint32 *const src = subinfo->data;
guint i, len = subinfo->data_size / 4;
GstMapInfo map_info;
guint32 *dst;
if (!gst_buffer_map (buffer, &map_info, GST_MAP_WRITE))
return;
dst = (guint32 *) map_info.data;
/* Convert from RGBA source to ARGB */
for (i = 0; i < len; i++) {
const guint32 rgba = src[i];
dst[i] = (rgba >> 8) | (rgba << 24);
}
gst_buffer_unmap (buffer, &map_info);
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}
int
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main (int argc, char *argv[])
{
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GstVaapiDisplay *display;
GstVaapiWindow *window;
GstVaapiDecoder *decoder;
GstVaapiSurfaceProxy *proxy;
GstVaapiSurface *surface;
GstBuffer *buffer;
VideoSubpictureInfo subinfo;
GstVaapiRectangle subrect;
GstVideoOverlayRectangle *overlay;
GstVideoOverlayComposition *compo;
guint flags = 0;
static const guint win_width = 640;
static const guint win_height = 480;
if (!video_output_init (&argc, argv, g_options))
g_error ("failed to initialize video output subsystem");
if (g_global_alpha != 1.0)
flags |= GST_VIDEO_OVERLAY_FORMAT_FLAG_GLOBAL_ALPHA;
g_print ("Test subpicture\n");
display = video_output_create_display (NULL);
if (!display)
g_error ("could not create VA display");
window = video_output_create_window (display, win_width, win_height);
if (!window)
g_error ("could not create window");
decoder = decoder_new (display, g_codec_str);
if (!decoder)
g_error ("could not create decoder");
if (!decoder_put_buffers (decoder))
g_error ("could not fill decoder with sample data");
proxy = decoder_get_surface (decoder);
if (!proxy)
g_error ("could not get decoded surface");
surface = gst_vaapi_surface_proxy_get_surface (proxy);
subpicture_get_info (&subinfo);
buffer = gst_buffer_new_and_alloc (subinfo.data_size);
upload_subpicture (buffer, &subinfo);
/* We position the subpicture at the bottom center */
subrect.x = (gst_vaapi_surface_get_width (surface) - subinfo.width) / 2;
subrect.y = gst_vaapi_surface_get_height (surface) - subinfo.height - 10;
subrect.height = subinfo.height;
subrect.width = subinfo.width;
{
GstVideoMeta *const vmeta =
gst_buffer_add_video_meta (buffer, GST_VIDEO_FRAME_FLAG_NONE,
GST_VIDEO_OVERLAY_COMPOSITION_FORMAT_RGB,
subinfo.width, subinfo.height);
if (!vmeta)
g_error ("could not create video meta");
overlay = gst_video_overlay_rectangle_new_raw (buffer,
subrect.x, subrect.y, subrect.width, subrect.height, flags);
}
if (!overlay)
g_error ("could not create video overlay");
gst_buffer_unref (buffer);
if (flags & GST_VIDEO_OVERLAY_FORMAT_FLAG_GLOBAL_ALPHA)
gst_video_overlay_rectangle_set_global_alpha (overlay, g_global_alpha);
compo = gst_video_overlay_composition_new (overlay);
if (!compo)
g_error ("could not create video overlay composition");
gst_video_overlay_rectangle_unref (overlay);
if (!gst_vaapi_surface_set_subpictures_from_composition (surface, compo,
FALSE))
g_error ("could not create subpictures from video overlay compoition");
gst_vaapi_window_show (window);
if (!gst_vaapi_window_put_surface (window, surface, NULL, NULL,
GST_VAAPI_PICTURE_STRUCTURE_FRAME))
g_error ("could not render surface");
pause ();
gst_video_overlay_composition_unref (compo);
gst_vaapi_surface_proxy_unref (proxy);
gst_vaapi_decoder_unref (decoder);
gst_vaapi_window_unref (window);
gst_vaapi_display_unref (display);
g_free (g_codec_str);
video_output_exit ();
return 0;
}