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d3d11converter: Add support for custom transform matrix

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Adding gst_d3d11_converter_set_transform_matrix() method so that
user specified transform matrix can be applied when "video-direction=custom"

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/5532>
This commit is contained in:
Seungha Yang 2023-10-19 21:52:27 +09:00 committed by GStreamer Marge Bot
parent 769c6a62a4
commit eac65d248a
2 changed files with 74 additions and 16 deletions
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64
subprojects/gst-plugins-bad/gst-libs/gst/d3d11/gstd3d11converter.cpp
View file

@ -260,6 +260,20 @@ enum
struct _GstD3D11ConverterPrivate
{
_GstD3D11ConverterPrivate ()
{
for (guint i = 0; i < 4; i++)
{
for (guint j = 0; j < 4; j++)
{
if (i == j)
custom_transform[i * 4 + j] = 1.0;
else
custom_transform[i * 4 + j] = 0.0;
}
}
}
~_GstD3D11ConverterPrivate ()
{
g_free (in_mdcv_str);
@ -311,6 +325,7 @@ struct _GstD3D11ConverterPrivate
gboolean update_src_rect = FALSE;
gboolean update_dest_rect = FALSE;
gboolean update_alpha = FALSE;
FLOAT custom_transform[16];
PSConstBuffer const_data;
@ -968,10 +983,12 @@ gst_d3d11_converter_apply_orientation (GstD3D11Converter * self)
switch (priv->video_direction) {
case GST_VIDEO_ORIENTATION_IDENTITY:
case GST_VIDEO_ORIENTATION_AUTO:
case GST_VIDEO_ORIENTATION_CUSTOM:
default:
matrix = g_matrix_identity;
break;
case GST_VIDEO_ORIENTATION_CUSTOM:
matrix = priv->custom_transform;
break;
case GST_VIDEO_ORIENTATION_90R:
matrix = g_matrix_90r;
break;
@ -1080,6 +1097,7 @@ gst_d3d11_converter_update_src_rect (GstD3D11Converter * self)
break;
}
if (priv->video_direction != GST_VIDEO_ORIENTATION_CUSTOM) {
if (priv->enable_rotation &&
(priv->processor_caps.FeatureCaps & FEATURE_CAPS_ROTATION) == 0) {
GST_WARNING_OBJECT (self, "Device does not support rotation");
@ -1093,6 +1111,7 @@ gst_d3d11_converter_update_src_rect (GstD3D11Converter * self)
priv->processor_direction_not_supported = TRUE;
}
}
}
if ((priv->supported_backend & GST_D3D11_CONVERTER_BACKEND_SHADER) == 0)
return TRUE;
@ -1197,7 +1216,8 @@ gst_d3d11_converter_update_dest_rect (GstD3D11Converter * self)
if (priv->fill_border && (priv->dest_x != 0 || priv->dest_y != 0 ||
priv->dest_width != out_info->width ||
priv->dest_height != out_info->height)) {
priv->dest_height != out_info->height ||
priv->video_direction == GST_VIDEO_ORIENTATION_CUSTOM)) {
GST_DEBUG_OBJECT (self, "Enable background color");
priv->clear_background = TRUE;
} else {
@ -2686,9 +2706,11 @@ gst_d3d11_converter_processor_available (GstD3D11Converter * self)
if (gst_d3d11_converter_need_blend (self))
return FALSE;
/* flip/rotate is not supported by processor */
if (priv->processor_direction_not_supported)
/* flip/rotate or affine transform is not supported by processor */
if (priv->processor_direction_not_supported ||
priv->video_direction == GST_VIDEO_ORIENTATION_CUSTOM) {
return FALSE;
}
return TRUE;
}
@ -3120,7 +3142,6 @@ gst_d3d11_converter_convert_buffer (GstD3D11Converter * converter,
*
* Since: 1.22
*/
gboolean
gst_d3d11_converter_convert_buffer_unlocked (GstD3D11Converter * converter,
GstBuffer * in_buf, GstBuffer * out_buf)
@ -3132,3 +3153,36 @@ gst_d3d11_converter_convert_buffer_unlocked (GstD3D11Converter * converter,
return gst_d3d11_converter_convert_buffer_internal (converter,
in_buf, out_buf);
}
/**
* gst_d3d11_converter_set_transform_matrix:
* @converter: a #GstD3D11Converter
* @matrix: the row-major 4x4 transform matrix
*
* Apply transform matrix
*
* Returns: %TRUE if successful
*
* Since: 1.24
*/
gboolean
gst_d3d11_converter_set_transform_matrix (GstD3D11Converter * converter,
gfloat matrix[16])
{
GstD3D11ConverterPrivate *priv;
g_return_val_if_fail (GST_IS_D3D11_CONVERTER (converter), FALSE);
g_return_val_if_fail (matrix, FALSE);
priv = converter->priv;
if ((priv->supported_backend & GST_D3D11_CONVERTER_BACKEND_SHADER) == 0) {
GST_ERROR_OBJECT (converter, "Shader backend is disabled");
return FALSE;
}
std::lock_guard < std::mutex > lk (priv->prop_lock);
memcpy (priv->custom_transform, matrix, sizeof (priv->custom_transform));
priv->update_src_rect = TRUE;
priv->update_dest_rect = TRUE;
return TRUE;
}

4
subprojects/gst-plugins-bad/gst-libs/gst/d3d11/gstd3d11converter.h
View file

@ -194,4 +194,8 @@ gboolean gst_d3d11_converter_convert_buffer_unlocked (GstD3D11Convert
GstBuffer * in_buf,
GstBuffer * out_buf);
GST_D3D11_API
gboolean gst_d3d11_converter_set_transform_matrix (GstD3D11Converter * converter,
gfloat matrix[16]);
G_END_DECLS