gstreamer/sys/vdpau/gstvdp/gstvdpoutputsrcpad.c
2012-11-04 00:09:59 +00:00

427 lines
11 KiB
C

/*
* 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., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#include "gstvdputils.h"
#include "gstvdpvideobuffer.h"
#include "gstvdpoutputbufferpool.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_DEVICE
};
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;
GstCaps *output_caps;
GstVdpOutputSrcPadFormat output_format;
VdpRGBAFormat rgba_format;
gint width, height;
GstVdpBufferPool *bpool;
gboolean lock_caps;
/* properties */
GstVdpDevice *device;
};
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:
{
GstFlowReturn ret;
guint size;
gst_vdp_output_buffer_calculate_size (output_buf, &size);
vdp_pad->lock_caps = TRUE;
ret = gst_pad_alloc_buffer (pad, 0, size, GST_PAD_CAPS (vdp_pad),
&outbuf);
vdp_pad->lock_caps = FALSE;
if (ret != GST_FLOW_OK) {
gst_buffer_unref (GST_BUFFER_CAST (output_buf));
return ret;
}
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 GstFlowReturn
gst_vdp_output_src_pad_create_buffer (GstVdpOutputSrcPad * vdp_pad,
GstVdpOutputBuffer ** output_buf, GError ** error)
{
GstFlowReturn ret;
GstBuffer *neg_buf;
/* 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)
gst_buffer_unref (neg_buf);
*output_buf =
(GstVdpOutputBuffer *) gst_vdp_buffer_pool_get_buffer (vdp_pad->bpool,
error);
if (!*output_buf)
return GST_FLOW_ERROR;
return GST_FLOW_OK;
}
static GstFlowReturn
gst_vdp_output_src_pad_alloc_with_caps (GstVdpOutputSrcPad * vdp_pad,
GstCaps * caps, GstVdpOutputBuffer ** output_buf, GError ** error)
{
GstFlowReturn ret;
ret = gst_pad_alloc_buffer_and_set_caps ((GstPad *) vdp_pad, 0, 0, caps,
(GstBuffer **) output_buf);
if (ret != GST_FLOW_OK)
return ret;
if (!GST_IS_VDP_OUTPUT_BUFFER (*output_buf))
goto invalid_buf;
return GST_FLOW_OK;
invalid_buf:
gst_buffer_unref (GST_BUFFER (*output_buf));
g_set_error (error, GST_STREAM_ERROR, GST_STREAM_ERROR_FAILED,
"Sink element returned buffer of wrong type");
return GST_FLOW_ERROR;
}
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:
{
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:
{
ret = gst_vdp_output_src_pad_alloc_with_caps (vdp_pad, caps, output_buf,
error);
if (ret != GST_FLOW_OK)
return ret;
break;
}
default:
g_assert_not_reached ();
break;
}
return GST_FLOW_OK;
}
static gboolean
gst_vdp_output_src_pad_acceptcaps (GstPad * pad, GstCaps * caps)
{
GstVdpOutputSrcPad *vdp_pad = GST_VDP_OUTPUT_SRC_PAD (pad);
if (!vdp_pad->lock_caps)
return TRUE;
return gst_caps_is_equal_fixed (caps, GST_PAD_CAPS (pad));
}
static gboolean
gst_vdp_output_src_pad_setcaps (GstPad * pad, GstCaps * caps)
{
GstVdpOutputSrcPad *vdp_pad = GST_VDP_OUTPUT_SRC_PAD (pad);
const GstStructure *structure;
structure = gst_caps_get_structure (caps, 0);
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_structure_has_name (structure, "video/x-raw-rgb")) {
if (!gst_vdp_caps_to_rgba_format (caps, &vdp_pad->rgba_format))
return FALSE;
/* create buffer pool if we dont't have one */
if (!vdp_pad->bpool)
vdp_pad->bpool = gst_vdp_output_buffer_pool_new (vdp_pad->device);
if (vdp_pad->output_caps)
gst_caps_unref (vdp_pad->output_caps);
vdp_pad->output_caps = gst_caps_new_simple ("video/x-vdpau-output",
"rgba-format", G_TYPE_INT, vdp_pad->rgba_format,
"width", G_TYPE_INT, vdp_pad->width, "height", G_TYPE_INT,
vdp_pad->height, NULL);
gst_vdp_buffer_pool_set_caps (vdp_pad->bpool, vdp_pad->output_caps);
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;
/* don't need the buffer pool */
if (vdp_pad->bpool) {
gst_object_unref (vdp_pad->bpool);
vdp_pad->bpool = NULL;
}
vdp_pad->output_format = GST_VDP_OUTPUT_SRC_PAD_FORMAT_VDPAU;
} else
return FALSE;
return TRUE;
}
static GstCaps *
gst_vdp_output_src_pad_getcaps (GstPad * pad)
{
GstVdpOutputSrcPad *vdp_pad = (GstVdpOutputSrcPad *) pad;
const GstCaps *templ_caps;
if (vdp_pad->caps)
return gst_caps_ref (vdp_pad->caps);
else if ((templ_caps = gst_pad_get_pad_template_caps (pad)))
return gst_caps_copy (templ_caps);
return NULL;
}
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->caps)
gst_caps_unref (vdp_pad->caps);
vdp_pad->caps = NULL;
if (vdp_pad->output_caps)
gst_caps_unref (vdp_pad->output_caps);
vdp_pad->output_caps = NULL;
if (vdp_pad->bpool)
g_object_unref (vdp_pad->bpool);
vdp_pad->bpool = NULL;
if (vdp_pad->device)
g_object_unref (vdp_pad->device);
vdp_pad->device = NULL;
}
return TRUE;
}
GstVdpOutputSrcPad *
gst_vdp_output_src_pad_new (GstPadTemplate * templ, const gchar * name)
{
return g_object_new (GST_TYPE_VDP_OUTPUT_SRC_PAD, "name", name,
"template", templ, "direction", GST_PAD_SRC, NULL);
}
static void
gst_vdp_output_src_pad_update_caps (GstVdpOutputSrcPad * vdp_pad)
{
GstCaps *caps;
const GstCaps *templ_caps;
if (vdp_pad->caps)
gst_caps_unref (vdp_pad->caps);
caps = gst_vdp_output_buffer_get_allowed_caps (vdp_pad->device);
if ((templ_caps = gst_pad_get_pad_template_caps (GST_PAD (vdp_pad)))) {
vdp_pad->caps = gst_caps_intersect (caps, templ_caps);
gst_caps_unref (caps);
} else
vdp_pad->caps = caps;
}
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_DEVICE:
g_value_set_object (value, vdp_pad->device);
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_DEVICE:
if (vdp_pad->device)
g_object_unref (vdp_pad->device);
vdp_pad->device = g_value_dup_object (value);
gst_vdp_output_src_pad_update_caps (vdp_pad);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_vdp_output_src_pad_init (GstVdpOutputSrcPad * vdp_pad)
{
GstPad *pad = GST_PAD (vdp_pad);
vdp_pad->caps = NULL;
vdp_pad->output_caps = NULL;
vdp_pad->bpool = NULL;
vdp_pad->device = NULL;
vdp_pad->lock_caps = FALSE;
gst_pad_set_getcaps_function (pad,
GST_DEBUG_FUNCPTR (gst_vdp_output_src_pad_getcaps));
gst_pad_set_setcaps_function (pad,
GST_DEBUG_FUNCPTR (gst_vdp_output_src_pad_setcaps));
gst_pad_set_acceptcaps_function (pad,
GST_DEBUG_FUNCPTR (gst_vdp_output_src_pad_acceptcaps));
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;
/**
* GstVdpVideoSrcPad:device:
*
* The #GstVdpDevice this pool is bound to.
*/
g_object_class_install_property
(object_class,
PROP_DEVICE,
g_param_spec_object ("device",
"Device",
"The GstVdpDevice the pad should use",
GST_TYPE_VDP_DEVICE, G_PARAM_READWRITE));
}