gstreamer/sys/vdpau/gstvdp/gstvdpoutputsrcpad.c

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/*
* GStreamer
* Copyright (C) 2009 Carl-Anton Ingmarsson <ca.ingmarsson@gmail.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include "gstvdputils.h"
#include "gstvdpvideobuffer.h"
#include "gstvdpoutputsrcpad.h"
GST_DEBUG_CATEGORY_STATIC (gst_vdp_output_src_pad_debug);
#define GST_CAT_DEFAULT gst_vdp_output_src_pad_debug
enum
{
PROP_0,
PROP_DISPLAY,
PROP_TEMPL_CAPS
};
typedef enum _GstVdpOutputSrcPadFormat GstVdpOutputSrcPadFormat;
enum _GstVdpOutputSrcPadFormat
{
GST_VDP_OUTPUT_SRC_PAD_FORMAT_RGB,
GST_VDP_OUTPUT_SRC_PAD_FORMAT_VDPAU
};
struct _GstVdpOutputSrcPad
{
GstPad pad;
GstCaps *caps;
GstVdpDevice *device;
GstCaps *input_caps;
GstVdpOutputSrcPadFormat output_format;
VdpRGBAFormat rgba_format;
gint width, height;
/* properties */
gchar *display;
GstCaps *templ_caps;
};
struct _GstVdpOutputSrcPadClass
{
GstPadClass pad_class;
};
#define DEBUG_INIT(bla) \
GST_DEBUG_CATEGORY_INIT (gst_vdp_output_src_pad_debug, "vdpoutputsrcpad", 0, "GstVdpOutputSrcPad");
G_DEFINE_TYPE_WITH_CODE (GstVdpOutputSrcPad, gst_vdp_output_src_pad,
GST_TYPE_PAD, DEBUG_INIT ());
GstFlowReturn
gst_vdp_output_src_pad_push (GstVdpOutputSrcPad * vdp_pad,
GstVdpOutputBuffer * output_buf, GError ** error)
{
GstPad *pad;
GstBuffer *outbuf;
g_return_val_if_fail (GST_IS_VDP_OUTPUT_SRC_PAD (vdp_pad), GST_FLOW_ERROR);
g_return_val_if_fail (GST_IS_VDP_OUTPUT_BUFFER (output_buf), GST_FLOW_ERROR);
pad = (GstPad *) vdp_pad;
if (G_UNLIKELY (!GST_PAD_CAPS (pad)))
return GST_FLOW_NOT_NEGOTIATED;
switch (vdp_pad->output_format) {
case GST_VDP_OUTPUT_SRC_PAD_FORMAT_RGB:
{
guint size;
gst_vdp_output_buffer_calculate_size (output_buf, &size);
/* FIXME: we don't do pad_alloc here since we really want a buffer of
* the specified size */
outbuf = gst_buffer_new_and_alloc (size);
gst_buffer_set_caps (outbuf, GST_PAD_CAPS (vdp_pad));
if (!gst_vdp_output_buffer_download (output_buf, outbuf, error)) {
gst_buffer_unref (GST_BUFFER_CAST (output_buf));
gst_buffer_unref (outbuf);
return GST_FLOW_ERROR;
}
gst_buffer_copy_metadata (outbuf, (const GstBuffer *) output_buf,
GST_BUFFER_COPY_FLAGS | GST_BUFFER_COPY_TIMESTAMPS);
gst_buffer_unref (GST_BUFFER_CAST (output_buf));
break;
}
case GST_VDP_OUTPUT_SRC_PAD_FORMAT_VDPAU:
{
outbuf = GST_BUFFER_CAST (output_buf);
break;
}
default:
g_assert_not_reached ();
break;
}
gst_buffer_set_caps (outbuf, GST_PAD_CAPS (vdp_pad));
return gst_pad_push (pad, outbuf);
}
static void
gst_vdp_output_src_pad_update_caps (GstVdpOutputSrcPad * vdp_pad)
{
GstCaps *allowed_caps;
allowed_caps = gst_vdp_output_buffer_get_allowed_caps (vdp_pad->device);
if (vdp_pad->caps)
gst_caps_unref (vdp_pad->caps);
if (vdp_pad->templ_caps) {
vdp_pad->caps = gst_caps_intersect (allowed_caps, vdp_pad->templ_caps);
gst_caps_unref (allowed_caps);
} else
vdp_pad->caps = allowed_caps;
GST_DEBUG_OBJECT (vdp_pad, "allowed caps: %" GST_PTR_FORMAT, vdp_pad->caps);
}
static GstFlowReturn
gst_vdp_output_src_pad_create_buffer (GstVdpOutputSrcPad * vdp_pad,
GstVdpOutputBuffer ** output_buf, GError ** error)
{
GstFlowReturn ret;
GstBuffer *neg_buf;
GstStructure *structure;
/* negotiate */
ret = gst_pad_alloc_buffer_and_set_caps (GST_PAD_CAST (vdp_pad),
GST_BUFFER_OFFSET_NONE, 0, GST_PAD_CAPS (vdp_pad), &neg_buf);
if (ret == GST_FLOW_OK) {
gint new_width, new_height;
structure = gst_caps_get_structure (GST_BUFFER_CAPS (neg_buf), 0);
if (!gst_structure_get_int (structure, "width", &new_width) ||
!gst_structure_get_int (structure, "height", &new_height))
goto invalid_caps;
if (new_width != vdp_pad->width || new_height != vdp_pad->height) {
GST_DEBUG_OBJECT (vdp_pad, "new dimensions: %dx%d", new_width,
new_height);
vdp_pad->width = new_width;
vdp_pad->height = new_height;
gst_caps_set_simple (vdp_pad->input_caps,
"width", G_TYPE_INT, new_width,
"height", G_TYPE_INT, new_height, NULL);
}
gst_buffer_unref (neg_buf);
}
*output_buf = gst_vdp_output_buffer_new (vdp_pad->device,
vdp_pad->rgba_format, vdp_pad->width, vdp_pad->height);
if (!*output_buf)
goto output_buf_error;
gst_buffer_set_caps (GST_BUFFER_CAST (*output_buf), vdp_pad->input_caps);
return GST_FLOW_OK;
invalid_caps:
gst_buffer_unref (neg_buf);
g_set_error (error, GST_STREAM_ERROR, GST_STREAM_ERROR_FAILED,
"Sink element allocated buffer with invalid caps");
return GST_FLOW_ERROR;
output_buf_error:
gst_buffer_unref (neg_buf);
g_set_error (error, GST_RESOURCE_ERROR, GST_RESOURCE_ERROR_READ,
"Couldn't create a GstVdpOutputBuffer");
return GST_FLOW_ERROR;
}
static gboolean
gst_vdp_output_src_pad_open_device (GstVdpOutputSrcPad * vdp_pad,
GError ** error)
{
GstVdpDevice *device;
vdp_pad->device = device = gst_vdp_get_device (vdp_pad->display);
if (G_UNLIKELY (!vdp_pad->device))
goto device_error;
gst_vdp_output_src_pad_update_caps (vdp_pad);
return TRUE;
device_error:
g_set_error (error, GST_RESOURCE_ERROR, GST_RESOURCE_ERROR_OPEN_READ,
"Couldn't create GstVdpDevice");
return FALSE;
}
GstFlowReturn
gst_vdp_output_src_pad_alloc_buffer (GstVdpOutputSrcPad * vdp_pad,
GstVdpOutputBuffer ** output_buf, GError ** error)
{
GstCaps *caps;
GstFlowReturn ret;
g_return_val_if_fail (GST_IS_VDP_OUTPUT_SRC_PAD (vdp_pad), GST_FLOW_ERROR);
caps = GST_PAD_CAPS (vdp_pad);
if (!caps)
return GST_FLOW_NOT_NEGOTIATED;
switch (vdp_pad->output_format) {
case GST_VDP_OUTPUT_SRC_PAD_FORMAT_RGB:
{
if (G_UNLIKELY (!vdp_pad->device)) {
if (!gst_vdp_output_src_pad_open_device (vdp_pad, error))
return GST_FLOW_ERROR;
}
ret = gst_vdp_output_src_pad_create_buffer (vdp_pad, output_buf, error);
if (ret != GST_FLOW_OK)
return ret;
break;
}
case GST_VDP_OUTPUT_SRC_PAD_FORMAT_VDPAU:
{
GstStructure *structure;
ret = gst_pad_alloc_buffer ((GstPad *) vdp_pad, 0, 0, caps,
(GstBuffer **) output_buf);
if (ret != GST_FLOW_OK)
return ret;
structure = gst_caps_get_structure (GST_BUFFER_CAPS (*output_buf), 0);
if (!gst_structure_has_name (structure, "video/x-vdpau-output"))
goto wrong_caps;
if (G_UNLIKELY (!vdp_pad->device)) {
vdp_pad->device =
g_object_ref (GST_VDP_VIDEO_BUFFER (*output_buf)->device);
gst_vdp_output_src_pad_update_caps (vdp_pad);
}
break;
}
default:
g_assert_not_reached ();
break;
}
return GST_FLOW_OK;
wrong_caps:
gst_buffer_unref (GST_BUFFER_CAST (*output_buf));
g_set_error (error, GST_STREAM_ERROR, GST_STREAM_ERROR_FAILED,
"Sink element returned buffer with wrong caps");
return GST_FLOW_ERROR;
}
gboolean
gst_vdp_output_src_pad_negotiate_output (GstVdpOutputSrcPad * vdp_pad,
GstCaps * video_caps)
{
GstCaps *allowed_caps, *output_caps, *src_caps;
const GstStructure *structure;
g_return_val_if_fail (GST_IS_VDP_OUTPUT_SRC_PAD (vdp_pad), FALSE);
g_return_val_if_fail (GST_IS_CAPS (video_caps), FALSE);
allowed_caps = gst_pad_get_allowed_caps (GST_PAD_CAST (vdp_pad));
if (G_UNLIKELY (!allowed_caps))
goto allowed_caps_error;
if (G_UNLIKELY (gst_caps_is_empty (allowed_caps))) {
gst_caps_unref (allowed_caps);
goto allowed_caps_error;
}
GST_DEBUG ("allowed_caps: %" GST_PTR_FORMAT, allowed_caps);
output_caps = gst_vdp_video_to_output_caps (video_caps);
src_caps = gst_caps_intersect (output_caps, allowed_caps);
gst_caps_unref (output_caps);
gst_caps_unref (allowed_caps);
if (gst_caps_is_empty (src_caps))
goto not_negotiated;
gst_pad_fixate_caps (GST_PAD_CAST (vdp_pad), src_caps);
GST_DEBUG ("src_caps: %" GST_PTR_FORMAT, src_caps);
structure = gst_caps_get_structure (src_caps, 0);
if (gst_structure_has_name (structure, "video/x-raw-rgb")) {
if (!gst_vdp_caps_to_rgba_format (src_caps, &vdp_pad->rgba_format))
return FALSE;
vdp_pad->output_format = GST_VDP_OUTPUT_SRC_PAD_FORMAT_RGB;
} else if (gst_structure_has_name (structure, "video/x-vdpau-output")) {
if (!gst_structure_get_int (structure, "rgba-format",
(gint *) & vdp_pad->rgba_format))
return FALSE;
vdp_pad->output_format = GST_VDP_OUTPUT_SRC_PAD_FORMAT_VDPAU;
} else
return FALSE;
if (!gst_structure_get_int (structure, "width", &vdp_pad->width))
return FALSE;
if (!gst_structure_get_int (structure, "height", &vdp_pad->height))
return FALSE;
if (gst_pad_set_caps (GST_PAD (vdp_pad), src_caps)) {
vdp_pad->input_caps = gst_caps_copy (video_caps);
return TRUE;
}
return FALSE;
allowed_caps_error:
GST_ERROR_OBJECT (vdp_pad, "Got invalid allowed caps");
return FALSE;
not_negotiated:
gst_caps_unref (src_caps);
GST_ERROR_OBJECT (vdp_pad, "Couldn't find suitable output format");
return FALSE;
}
GstFlowReturn
gst_vdp_output_src_pad_get_device (GstVdpOutputSrcPad * vdp_pad,
GstVdpDevice ** device, GError ** error)
{
g_return_val_if_fail (GST_IS_VDP_OUTPUT_SRC_PAD (vdp_pad), FALSE);
if (G_UNLIKELY (!vdp_pad->device)) {
GstCaps *src_caps;
GstStructure *structure;
src_caps = gst_pad_get_allowed_caps (GST_PAD (vdp_pad));
gst_pad_fixate_caps (GST_PAD (vdp_pad), src_caps);
if (gst_caps_is_empty (src_caps)) {
gst_caps_unref (src_caps);
return GST_FLOW_NOT_NEGOTIATED;
}
structure = gst_caps_get_structure (src_caps, 0);
if (gst_structure_has_name (structure, "video/x-raw-rgb")) {
if (!gst_vdp_output_src_pad_open_device (vdp_pad, error)) {
gst_caps_unref (src_caps);
return GST_FLOW_ERROR;
}
}
else {
GstFlowReturn ret;
GstBuffer *buf;
ret = gst_pad_alloc_buffer (GST_PAD (vdp_pad), 0, 0, src_caps, &buf);
if (ret != GST_FLOW_OK) {
gst_caps_unref (src_caps);
goto alloc_failed;
}
if (!gst_caps_is_equal_fixed (src_caps, GST_BUFFER_CAPS (buf))) {
gst_caps_unref (src_caps);
gst_buffer_unref (buf);
goto wrong_caps;
}
vdp_pad->device = g_object_ref (GST_VDP_OUTPUT_BUFFER (buf)->device);
}
gst_caps_unref (src_caps);
}
*device = vdp_pad->device;
return GST_FLOW_OK;
alloc_failed:
g_set_error (error, GST_STREAM_ERROR, GST_STREAM_ERROR_FAILED,
"Couldn't allocate buffer");
return GST_FLOW_ERROR;
wrong_caps:
g_set_error (error, GST_STREAM_ERROR, GST_STREAM_ERROR_FAILED,
"Sink element returned buffer with wrong caps");
return GST_FLOW_ERROR;
}
static GstCaps *
gst_vdp_output_src_pad_getcaps (GstPad * pad)
{
GstVdpOutputSrcPad *vdp_pad = (GstVdpOutputSrcPad *) pad;
if (vdp_pad->caps)
return gst_caps_ref (vdp_pad->caps);
return gst_caps_ref (vdp_pad->templ_caps);
}
static gboolean
gst_vdp_output_src_pad_activate_push (GstPad * pad, gboolean active)
{
GstVdpOutputSrcPad *vdp_pad = GST_VDP_OUTPUT_SRC_PAD (pad);
if (!active) {
if (vdp_pad->device)
g_object_unref (vdp_pad->device);
vdp_pad->device = NULL;
if (vdp_pad->caps)
gst_caps_unref (vdp_pad->caps);
vdp_pad->caps = NULL;
}
return TRUE;
}
GstVdpOutputSrcPad *
gst_vdp_output_src_pad_new (GstCaps * templ_caps)
{
return g_object_new (GST_TYPE_VDP_OUTPUT_SRC_PAD, "template-caps", templ_caps,
"direction", GST_PAD_SRC, NULL);
}
static void
gst_vdp_output_src_pad_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec)
{
GstVdpOutputSrcPad *vdp_pad = (GstVdpOutputSrcPad *) object;
switch (prop_id) {
case PROP_DISPLAY:
g_value_set_string (value, vdp_pad->display);
break;
case PROP_TEMPL_CAPS:
gst_value_set_caps (value, vdp_pad->templ_caps);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_vdp_output_src_pad_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstVdpOutputSrcPad *vdp_pad = (GstVdpOutputSrcPad *) object;
switch (prop_id) {
case PROP_DISPLAY:
vdp_pad->display = g_value_dup_string (value);
break;
case PROP_TEMPL_CAPS:
if (vdp_pad->templ_caps)
gst_caps_unref (vdp_pad->templ_caps);
vdp_pad->templ_caps = gst_caps_copy (gst_value_get_caps (value));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_vdp_output_src_pad_finalize (GObject * object)
{
GstVdpOutputSrcPad *vdp_pad = (GstVdpOutputSrcPad *) object;
if (vdp_pad->templ_caps)
gst_caps_unref (vdp_pad->templ_caps);
g_free (vdp_pad->display);
G_OBJECT_CLASS (gst_vdp_output_src_pad_parent_class)->finalize (object);
}
static void
gst_vdp_output_src_pad_init (GstVdpOutputSrcPad * vdp_pad)
{
GstPad *pad = GST_PAD (vdp_pad);
vdp_pad->device = NULL;
vdp_pad->caps = NULL;
vdp_pad->display = NULL;
vdp_pad->templ_caps = NULL;
gst_pad_set_getcaps_function (pad,
GST_DEBUG_FUNCPTR (gst_vdp_output_src_pad_getcaps));
gst_pad_set_activatepush_function (pad,
GST_DEBUG_FUNCPTR (gst_vdp_output_src_pad_activate_push));
}
static void
gst_vdp_output_src_pad_class_init (GstVdpOutputSrcPadClass * klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
object_class->get_property = gst_vdp_output_src_pad_get_property;
object_class->set_property = gst_vdp_output_src_pad_set_property;
object_class->finalize = gst_vdp_output_src_pad_finalize;
g_object_class_install_property (object_class, PROP_DISPLAY,
g_param_spec_string ("display", "Display", "X Display name",
NULL, G_PARAM_READWRITE | G_PARAM_CONSTRUCT));
g_object_class_install_property (object_class, PROP_TEMPL_CAPS,
g_param_spec_boxed ("template-caps", "Template caps",
"Template caps", GST_TYPE_CAPS,
G_PARAM_READWRITE | G_PARAM_CONSTRUCT));
}