vdpau: add GstPad subclass GstVdpOutputSrcPad

GstVdpOutputSrcPad is a subclass of GstPad that is used for pushing out
GstVdpOutputBuffers. It takes care of caps negotiation and conversion to
video/x-raw-rgb.
This commit is contained in:
Carl-Anton Ingmarsson 2009-11-22 22:28:18 +01:00
parent a71cf4dfb2
commit 64601993c9
5 changed files with 533 additions and 2 deletions

View file

@ -28,14 +28,16 @@ libgstvdp_@GST_MAJORMINOR@_la_SOURCES = \
gstvdpdevice.c \
gstvdpvideobuffer.c \
gstvdpoutputbuffer.c \
gstvdpvideosrcpad.c
gstvdpvideosrcpad.c \
gstvdpoutputsrcpad.c
libgstvdp_@GST_MAJORMINOR@includedir = $(includedir)/gstreamer-@GST_MAJORMINOR@/gst/vdpau
libgstvdp_@GST_MAJORMINOR@include_HEADERS = \
gstvdpdevice.h \
gstvdpvideobuffer.h \
gstvdpoutputbuffer.h \
gstvdpvideosrcpad.h
gstvdpvideosrcpad.h \
gstvdpoutputsrcpad.h
libgstvdp_@GST_MAJORMINOR@_la_CFLAGS = $(GST_CFLAGS) $(VDPAU_CFLAGS) $(X11_CFLAGS)
libgstvdp_@GST_MAJORMINOR@_la_LIBADD = $(GST_LIBS) $(VDPAU_LIBS) $(X11_LIBS) -lgstvideo-$(GST_MAJORMINOR)

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@ -112,6 +112,8 @@ gst_vdp_device_constructed (GObject * object)
{VDP_FUNC_ID_OUTPUT_SURFACE_DESTROY, &device->vdp_output_surface_destroy},
{VDP_FUNC_ID_OUTPUT_SURFACE_QUERY_CAPABILITIES,
&device->vdp_output_surface_query_capabilities},
{VDP_FUNC_ID_OUTPUT_SURFACE_GET_BITS_NATIVE,
&device->vdp_output_surface_get_bits_native},
{VDP_FUNC_ID_PRESENTATION_QUEUE_TARGET_CREATE_X11,
&device->vdp_presentation_queue_target_create_x11},
{VDP_FUNC_ID_PRESENTATION_QUEUE_CREATE,

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@ -81,6 +81,7 @@ struct _GstVdpDevice
VdpOutputSurfaceCreate *vdp_output_surface_create;
VdpOutputSurfaceDestroy *vdp_output_surface_destroy;
VdpOutputSurfaceQueryCapabilities *vdp_output_surface_query_capabilities;
VdpOutputSurfaceGetBitsNative *vdp_output_surface_get_bits_native;
VdpPresentationQueueTargetCreateX11 *vdp_presentation_queue_target_create_x11;
VdpPresentationQueueCreate *vdp_presentation_queue_create;

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@ -0,0 +1,471 @@
/*
* 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 "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;
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)
{
GstPad *pad;
GstBuffer *out_buf;
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;
if (!gst_vdp_output_buffer_calculate_size (output_buf, &size)) {
GST_ERROR_OBJECT (vdp_pad, "Couldn't calculate buffer size for caps");
gst_buffer_unref (GST_BUFFER_CAST (output_buf));
return GST_FLOW_ERROR;
}
out_buf = gst_buffer_new_and_alloc (size);
gst_buffer_set_caps (out_buf, GST_PAD_CAPS (vdp_pad));
if (!gst_vdp_output_buffer_download (output_buf, out_buf)) {
GST_ERROR_OBJECT (vdp_pad,
"Couldn't convert from GstVdpVideoBuffer to the requested format");
gst_buffer_unref (GST_BUFFER_CAST (output_buf));
gst_buffer_unref (out_buf);
}
gst_buffer_copy_metadata (out_buf, (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:
{
out_buf = GST_BUFFER_CAST (output_buf);
break;
}
default:
g_assert_not_reached ();
break;
}
gst_buffer_set_caps (out_buf, GST_PAD_CAPS (vdp_pad));
return gst_pad_push (pad, out_buf);
}
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;
}
GstFlowReturn
gst_vdp_output_src_pad_alloc_buffer (GstVdpOutputSrcPad * vdp_pad,
GstVdpOutputBuffer ** output_buf)
{
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:
{
GstVdpDevice *device;
GstBuffer *neg_buf;
GstStructure *structure;
gint width, height;
if (G_UNLIKELY (!vdp_pad->device)) {
vdp_pad->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);
}
device = vdp_pad->device;
/* negotiate */
ret = gst_pad_alloc_buffer (GST_PAD_CAST (vdp_pad),
GST_BUFFER_OFFSET_NONE, 0, caps, &neg_buf);
if (ret != GST_FLOW_OK)
return ret;
structure = gst_caps_get_structure (GST_BUFFER_CAPS (neg_buf), 0);
if (!gst_structure_get_int (structure, "width", &width) ||
!gst_structure_get_int (structure, "height", &height)) {
gst_buffer_unref (neg_buf);
GST_ERROR_OBJECT (vdp_pad,
"Sink element allocated buffer with invalid caps");
return GST_FLOW_ERROR;
}
*output_buf = gst_vdp_output_buffer_new (device, vdp_pad->rgba_format,
width, height);
if (!*output_buf) {
gst_buffer_unref (neg_buf);
goto output_buf_error;
}
gst_buffer_set_caps (GST_BUFFER_CAST (*output_buf),
GST_BUFFER_CAPS (neg_buf));
gst_buffer_unref (neg_buf);
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;
device_error:
GST_ERROR_OBJECT (vdp_pad, "Couldn't create GstVdpDevice");
return GST_FLOW_ERROR;
output_buf_error:
GST_ERROR_OBJECT (vdp_pad, "Couldn't create GstVdpVideoBuffer");
return GST_FLOW_ERROR;
wrong_caps:
GST_ERROR_OBJECT (vdp_pad, "Sink element returned buffer with wrong caps");
gst_buffer_unref (GST_BUFFER_CAST (*output_buf));
return GST_FLOW_ERROR;
}
gboolean
gst_vdp_output_src_pad_set_caps (GstVdpOutputSrcPad * vdp_pad, GstCaps * caps)
{
const GstStructure *structure;
g_return_val_if_fail (GST_IS_VDP_OUTPUT_SRC_PAD (vdp_pad), FALSE);
if (G_UNLIKELY (!caps))
return gst_pad_set_caps (GST_PAD (vdp_pad), caps);
if (G_UNLIKELY (!GST_IS_CAPS (caps) || !gst_caps_is_fixed (caps)))
return FALSE;
structure = gst_caps_get_structure (caps, 0);
if (gst_structure_has_name (structure, "video/x-raw-rgb")) {
if (!gst_vdp_caps_to_rgba_format (caps, &vdp_pad->rgba_format))
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;
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;
if (!gst_structure_get_int (structure, "width", &vdp_pad->width))
return FALSE;
if (!gst_structure_get_int (structure, "height", &vdp_pad->height))
return FALSE;
vdp_pad->output_format = GST_VDP_OUTPUT_SRC_PAD_FORMAT_VDPAU;
} else
return FALSE;
return gst_pad_set_caps (GST_PAD (vdp_pad), caps);
}
GstFlowReturn
gst_vdp_output_src_pad_get_device (GstVdpOutputSrcPad * vdp_pad,
GstVdpDevice ** device)
{
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")) {
vdp_pad->device = gst_vdp_get_device (vdp_pad->display);
if (G_UNLIKELY (!vdp_pad->device))
goto device_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);
return ret;
}
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;
device_error:
GST_ERROR_OBJECT (vdp_pad, "Couldn't create GstVdpDevice");
return GST_FLOW_ERROR;
wrong_caps:
GST_ERROR_OBJECT (vdp_pad, "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));
}

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@ -0,0 +1,55 @@
/*
* 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.
*/
#ifndef _GST_VDP_OUTPUT_SRC_PAD_H_
#define _GST_VDP_OUTPUT_SRC_PAD_H_
#include <gst/gst.h>
#include "gstvdpdevice.h"
#include "gstvdpoutputbuffer.h"
G_BEGIN_DECLS
#define GST_TYPE_VDP_OUTPUT_SRC_PAD (gst_vdp_output_src_pad_get_type ())
#define GST_VDP_OUTPUT_SRC_PAD(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_VDP_OUTPUT_SRC_PAD, GstVdpOutputSrcPad))
#define GST_VDP_OUTPUT_SRC_PAD_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_VDP_OUTPUT_SRC_PAD, GstVdpOutputSrcPadClass))
#define GST_IS_VDP_OUTPUT_SRC_PAD(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_VDP_OUTPUT_SRC_PAD))
#define GST_IS_VDP_OUTPUT_SRC_PAD_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_VDP_OUTPUT_SRC_PAD))
#define GST_VDP_OUTPUT_SRC_PAD_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_VDP_OUTPUT_SRC_PAD, GstVdpOutputSrcPadClass))
typedef struct _GstVdpOutputSrcPad GstVdpOutputSrcPad;
typedef struct _GstVdpOutputSrcPadClass GstVdpOutputSrcPadClass;
GstFlowReturn gst_vdp_output_src_pad_push (GstVdpOutputSrcPad *vdp_pad, GstVdpOutputBuffer *output_buf);
GstFlowReturn gst_vdp_output_src_pad_alloc_buffer (GstVdpOutputSrcPad *vdp_pad, GstVdpOutputBuffer **output_buf);
GstFlowReturn gst_vdp_output_src_pad_get_device (GstVdpOutputSrcPad *vdp_pad, GstVdpDevice **device);
gboolean gst_vdp_output_src_pad_set_caps (GstVdpOutputSrcPad *vdp_pad, GstCaps *caps);
GstCaps *gst_vdp_output_src_pad_get_template_caps ();
GstVdpOutputSrcPad *gst_vdp_output_src_pad_new ();
GType gst_vdp_output_src_pad_get_type (void) G_GNUC_CONST;
G_END_DECLS
#endif /* _GST_VDP_OUTPUT_SRC_PAD_H_ */