620e1d2fcd
This is simple video sink that use libdrm/libkms API to render frames. The element uses planes to render through drmModeSetPlane(). It has been tested in an Exynos4412 board and in a Freescale I.MX6 board. https://bugzilla.gnome.org/show_bug.cgi?id=761059
124 lines
3.0 KiB
C
124 lines
3.0 KiB
C
/* GStreamer
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*
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* Copyright (C) 2016 Igalia
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*
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* Authors:
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* Víctor Manuel Jáquez Leal <vjaquez@igalia.com>
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* Javier Martin <javiermartin@by.com.es>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <drm_fourcc.h>
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#include "gstkmsutils.h"
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/* *INDENT-OFF* */
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static const struct
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{
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guint32 fourcc;
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GstVideoFormat format;
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} format_map[] = {
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#define DEF_FMT(fourcc, fmt) \
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{ DRM_FORMAT_##fourcc,GST_VIDEO_FORMAT_##fmt }
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/* DEF_FMT (XRGB1555, ???), */
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/* DEF_FMT (XBGR1555, ???), */
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#if G_BYTE_ORDER == G_LITTLE_ENDIAN
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DEF_FMT (ARGB8888, BGRA),
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DEF_FMT (XRGB8888, BGRx),
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DEF_FMT (ABGR8888, RGBA),
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DEF_FMT (XBGR8888, RGBx),
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#else
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DEF_FMT (ARGB8888, ARGB),
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DEF_FMT (XRGB8888, xRGB),
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DEF_FMT (ABGR8888, ABGR),
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DEF_FMT (XBGR8888, xBGR),
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#endif
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/* DEF_FMT (YUYV, ???), */
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/* DEF_FMT (YVYU, ???), */
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DEF_FMT (YUV420, I420),
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DEF_FMT (YVU420, YV12),
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DEF_FMT (NV12, NV12),
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DEF_FMT (NV21, NV21),
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#undef DEF_FMT
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};
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/* *INDENT-ON* */
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GstVideoFormat
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gst_video_format_from_drm (guint32 drmfmt)
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{
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gint i;
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for (i = 0; i < G_N_ELEMENTS (format_map); i++) {
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if (format_map[i].fourcc == drmfmt)
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return format_map[i].format;
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}
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return GST_VIDEO_FORMAT_UNKNOWN;
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}
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guint32
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gst_drm_format_from_video (GstVideoFormat fmt)
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{
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gint i;
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for (i = 0; i < G_N_ELEMENTS (format_map); i++) {
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if (format_map[i].format == fmt)
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return format_map[i].fourcc;
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}
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return 0;
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}
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static GstStructure *
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gst_video_format_to_structure (GstVideoFormat format)
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{
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GstStructure *structure;
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structure = NULL;
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if (format != GST_VIDEO_FORMAT_UNKNOWN)
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structure = gst_structure_new ("video/x-raw", "format", G_TYPE_STRING,
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gst_video_format_to_string (format), NULL);
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return structure;
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}
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GstCaps *
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gst_kms_sink_caps_template_fill (void)
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{
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gint i;
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GstCaps *caps;
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GstStructure *template;
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caps = gst_caps_new_empty ();
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for (i = 0; i < G_N_ELEMENTS (format_map); i++) {
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template = gst_video_format_to_structure (format_map[i].format);
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gst_structure_set (template,
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"width", GST_TYPE_INT_RANGE, 1, G_MAXINT,
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"height", GST_TYPE_INT_RANGE, 1, G_MAXINT,
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"framerate", GST_TYPE_FRACTION_RANGE, 0, 1, G_MAXINT, 1, NULL);
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gst_caps_append_structure (caps, template);
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}
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return gst_caps_simplify (caps);
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}
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