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kmssink: Add helper functions to create DMA and raw caps

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Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/5174>
This commit is contained in:
He Junyan 2023-08-11 18:32:45 +08:00
parent 3f510d1296
commit 6f78e1c3e0
1 changed files with 113 additions and 0 deletions
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113
subprojects/gst-plugins-bad/sys/kms/gstkmssink.c
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@ -887,6 +887,119 @@ out:
return ret;
}
static GstCaps *
create_dma_drm_caps (GstKMSSink * self, guint32 fourcc, GArray * formats,
GArray * modifiers, drmModeModeInfo * mode, drmModeRes * res)
{
guint i;
GPtrArray *drm_formats;
GValue drm_value = G_VALUE_INIT;
gchar *drm_fmt;
GstCaps *caps = NULL;
drm_formats = g_ptr_array_new ();
for (i = 0; i < formats->len; i++) {
if (fourcc != g_array_index (formats, guint32, i))
continue;
/* Skip the unrecognized fourcc. */
if (gst_video_dma_drm_fourcc_to_format (fourcc) == GST_VIDEO_FORMAT_UNKNOWN)
continue;
/* Skip the unrecognized fourcc by ourself. */
if (gst_video_format_from_drm (fourcc) == GST_VIDEO_FORMAT_UNKNOWN)
continue;
drm_fmt = gst_video_dma_drm_fourcc_to_string (fourcc,
g_array_index (modifiers, guint64, i));
if (!drm_fmt)
continue;
g_ptr_array_add (drm_formats, drm_fmt);
}
if (drm_formats->len == 0) {
g_ptr_array_unref (drm_formats);
return NULL;
}
if (drm_formats->len == 1) {
g_value_init (&drm_value, G_TYPE_STRING);
g_value_take_string (&drm_value, g_ptr_array_index (drm_formats, 0));
} else {
GValue item = G_VALUE_INIT;
gst_value_list_init (&drm_value, drm_formats->len);
for (i = 0; i < drm_formats->len; i++) {
g_value_init (&item, G_TYPE_STRING);
g_value_take_string (&item, g_ptr_array_index (drm_formats, i));
gst_value_list_append_value (&drm_value, &item);
g_value_unset (&item);
}
}
if (mode) {
caps = gst_caps_new_simple ("video/x-raw",
"format", G_TYPE_STRING, "DMA_DRM",
"width", G_TYPE_INT, mode->hdisplay,
"height", G_TYPE_INT, mode->vdisplay,
"framerate", GST_TYPE_FRACTION_RANGE, 0, 1, G_MAXINT, 1, NULL);
} else {
caps = gst_caps_new_simple ("video/x-raw",
"format", G_TYPE_STRING, "DMA_DRM",
"width", GST_TYPE_INT_RANGE, res->min_width, res->max_width,
"height", GST_TYPE_INT_RANGE, res->min_height, res->max_height,
"framerate", GST_TYPE_FRACTION_RANGE, 0, 1, G_MAXINT, 1, NULL);
}
gst_caps_set_features_simple (caps,
gst_caps_features_from_string (GST_CAPS_FEATURE_MEMORY_DMABUF));
gst_caps_set_value (caps, "drm-format", &drm_value);
g_value_unset (&drm_value);
/* The strings are already token by the GValue, no need to free. */
g_ptr_array_unref (drm_formats);
return caps;
}
static GstCaps *
create_raw_caps (GstKMSSink * self, guint32 fourcc, GArray * formats,
GArray * modifiers, drmModeModeInfo * mode, drmModeRes * res)
{
GstVideoFormat fmt;
const gchar *format;
GstCaps *caps = NULL;
fmt = gst_video_format_from_drm (fourcc);
if (fmt == GST_VIDEO_FORMAT_UNKNOWN) {
GST_INFO_OBJECT (self, "ignoring format %" GST_FOURCC_FORMAT,
GST_FOURCC_ARGS (fourcc));
return NULL;
}
format = gst_video_format_to_string (fmt);
if (mode) {
caps = gst_caps_new_simple ("video/x-raw",
"format", G_TYPE_STRING, format,
"width", G_TYPE_INT, mode->hdisplay,
"height", G_TYPE_INT, mode->vdisplay,
"framerate", GST_TYPE_FRACTION_RANGE, 0, 1, G_MAXINT, 1, NULL);
} else {
caps = gst_caps_new_simple ("video/x-raw",
"format", G_TYPE_STRING, format,
"width", GST_TYPE_INT_RANGE, res->min_width, res->max_width,
"height", GST_TYPE_INT_RANGE, res->min_height, res->max_height,
"framerate", GST_TYPE_FRACTION_RANGE, 0, 1, G_MAXINT, 1, NULL);
}
return caps;
}
static gboolean
ensure_allowed_caps (GstKMSSink * self, drmModeConnector * conn,
drmModePlane * plane, drmModeRes * res)