3 * Copyright (C) 2016 Igalia
6 * Víctor Manuel Jáquez Leal <vjaquez@igalia.com>
7 * Javier Martin <javiermartin@by.com.es>
9 * This library is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU Library General Public
11 * License as published by the Free Software Foundation; either
12 * version 2 of the License, or (at your option) any later version.
14 * This library is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * Library General Public License for more details.
19 * You should have received a copy of the GNU Library General Public
20 * License along with this library; if not, write to the
21 * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
22 * Boston, MA 02110-1301, USA.
30 #include <drm_fourcc.h>
32 #include "gstkmsutils.h"
38 GstVideoFormat format;
40 #define DEF_FMT(fourcc, fmt) \
41 { DRM_FORMAT_##fourcc,GST_VIDEO_FORMAT_##fmt }
43 /* DEF_FMT (XRGB1555, ???), */
44 /* DEF_FMT (XBGR1555, ???), */
45 DEF_FMT (ARGB8888, BGRA),
46 DEF_FMT (XRGB8888, BGRx),
47 DEF_FMT (ABGR8888, RGBA),
48 DEF_FMT (XBGR8888, RGBx),
49 DEF_FMT (BGR888, RGB),
50 DEF_FMT (RGB888, BGR),
51 DEF_FMT (P010, P010_10LE),
52 DEF_FMT (P016, P016_LE),
56 DEF_FMT (YUV420, I420),
57 DEF_FMT (YVU420, YV12),
58 DEF_FMT (YUV422, Y42B),
70 gst_video_format_from_drm (guint32 drmfmt)
74 for (i = 0; i < G_N_ELEMENTS (format_map); i++) {
75 if (format_map[i].fourcc == drmfmt)
76 return format_map[i].format;
79 return GST_VIDEO_FORMAT_UNKNOWN;
83 gst_drm_format_from_video (GstVideoFormat fmt)
87 for (i = 0; i < G_N_ELEMENTS (format_map); i++) {
88 if (format_map[i].format == fmt)
89 return format_map[i].fourcc;
96 gst_drm_bpp_from_drm (guint32 drmfmt)
101 case DRM_FORMAT_YUV420:
102 case DRM_FORMAT_YVU420:
103 case DRM_FORMAT_YUV422:
104 case DRM_FORMAT_NV12:
105 case DRM_FORMAT_NV21:
106 case DRM_FORMAT_NV16:
107 case DRM_FORMAT_NV61:
108 case DRM_FORMAT_NV24:
111 case DRM_FORMAT_P010:
114 case DRM_FORMAT_UYVY:
115 case DRM_FORMAT_YUYV:
116 case DRM_FORMAT_YVYU:
117 case DRM_FORMAT_P016:
120 case DRM_FORMAT_BGR888:
121 case DRM_FORMAT_RGB888:
133 gst_drm_height_from_drm (guint32 drmfmt, guint32 height)
138 case DRM_FORMAT_YUV420:
139 case DRM_FORMAT_YVU420:
140 case DRM_FORMAT_YUV422:
141 case DRM_FORMAT_NV12:
142 case DRM_FORMAT_NV21:
143 case DRM_FORMAT_P010:
144 case DRM_FORMAT_P016:
145 ret = height * 3 / 2;
147 case DRM_FORMAT_NV16:
148 case DRM_FORMAT_NV61:
151 case DRM_FORMAT_NV24:
162 static GstStructure *
163 gst_video_format_to_structure (GstVideoFormat format)
165 GstStructure *structure;
168 if (format != GST_VIDEO_FORMAT_UNKNOWN)
169 structure = gst_structure_new ("video/x-raw", "format", G_TYPE_STRING,
170 gst_video_format_to_string (format), NULL);
176 gst_kms_sink_caps_template_fill (void)
180 GstStructure *template;
182 caps = gst_caps_new_empty ();
183 for (i = 0; i < G_N_ELEMENTS (format_map); i++) {
184 template = gst_video_format_to_structure (format_map[i].format);
185 gst_structure_set (template,
186 "width", GST_TYPE_INT_RANGE, 1, G_MAXINT,
187 "height", GST_TYPE_INT_RANGE, 1, G_MAXINT,
188 "framerate", GST_TYPE_FRACTION_RANGE, 0, 1, G_MAXINT, 1, NULL);
189 gst_caps_append_structure (caps, template);
191 return gst_caps_simplify (caps);
194 static const gint device_par_map[][2] = {
195 {1, 1}, /* regular screen */
196 {16, 15}, /* PAL TV */
197 {11, 10}, /* 525 line Rec.601 video */
198 {54, 59}, /* 625 line Rec.601 video */
199 {64, 45}, /* 1280x1024 on 16:9 display */
200 {5, 3}, /* 1280x1024 on 4:3 display */
201 {4, 3} /* 800x600 on 16:9 display */
204 #define DELTA(ratio, idx, w) \
205 (ABS(ratio - ((gdouble)device_par_map[idx][w] / device_par_map[idx][!(w)])))
208 gst_video_calculate_device_ratio (guint dev_width, guint dev_height,
209 guint dev_width_mm, guint dev_height_mm,
210 guint * dpy_par_n, guint * dpy_par_d)
212 gdouble ratio, delta, cur_delta;
213 gint i, j, index, windex;
215 /* First, calculate the "real" ratio based on the X values; which is
216 * the "physical" w/h divided by the w/h in pixels of the display */
217 if (dev_width == 0 || dev_height == 0
218 || dev_width_mm == 0 || dev_height_mm == 0)
221 ratio = (gdouble) (dev_width_mm * dev_height) / (dev_height_mm * dev_width);
223 /* Now, find the one from device_par_map[][2] with the lowest delta
225 delta = DELTA (ratio, 0, 0);
229 for (i = 1; i < G_N_ELEMENTS (device_par_map); i++) {
230 for (j = 0; j < 2; j++) {
231 cur_delta = DELTA (ratio, i, j);
232 if (cur_delta < delta) {
241 *dpy_par_n = device_par_map[index][windex];
244 *dpy_par_d = device_par_map[index][windex ^ 1];