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-rw-r--r--sys/vdpau/gstvdpdecoder.c275
1 files changed, 275 insertions, 0 deletions
diff --git a/sys/vdpau/gstvdpdecoder.c b/sys/vdpau/gstvdpdecoder.c
new file mode 100644
index 00000000..2e92381f
--- /dev/null
+++ b/sys/vdpau/gstvdpdecoder.c
@@ -0,0 +1,275 @@
+/*
+ * 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.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <gst/gst.h>
+#include <gst/video/video.h>
+
+#include "gstvdpdecoder.h"
+
+GST_DEBUG_CATEGORY_STATIC (gst_vdp_decoder_debug);
+#define GST_CAT_DEFAULT gst_vdp_decoder_debug
+
+/* Filter signals and args */
+enum
+{
+ /* FILL ME */
+ LAST_SIGNAL
+};
+
+enum
+{
+ PROP_0,
+ PROP_DISPLAY,
+ PROP_SILENT
+};
+
+static GstStaticPadTemplate src_template = GST_STATIC_PAD_TEMPLATE ("src",
+ GST_PAD_SRC,
+ GST_PAD_ALWAYS,
+ GST_STATIC_CAPS ("video/vdpau-video, " "chroma-type = (int) 0"));
+
+#define DEBUG_INIT(bla) \
+ GST_DEBUG_CATEGORY_INIT (gst_vdp_decoder_debug, "vdpaudecoder", 0, "vdpaudecoder base class");
+
+GST_BOILERPLATE_FULL (GstVdpDecoder, gst_vdp_decoder, GstElement,
+ GST_TYPE_ELEMENT, DEBUG_INIT);
+
+static void gst_vdp_decoder_finalize (GObject * object);
+static void gst_vdp_decoder_set_property (GObject * object, guint prop_id,
+ const GValue * value, GParamSpec * pspec);
+static void gst_vdp_decoder_get_property (GObject * object, guint prop_id,
+ GValue * value, GParamSpec * pspec);
+
+GstFlowReturn
+gst_vdp_decoder_push_video_buffer (GstVdpDecoder * dec,
+ GstVdpVideoBuffer * buffer)
+{
+ GST_BUFFER_TIMESTAMP (buffer) =
+ gst_util_uint64_scale_int (GST_SECOND * dec->frame_nr,
+ dec->framerate_denominator, dec->framerate_numerator);
+ GST_BUFFER_DURATION (buffer) =
+ gst_util_uint64_scale_int (GST_SECOND, dec->framerate_denominator,
+ dec->framerate_numerator);
+ GST_BUFFER_OFFSET (buffer) = dec->frame_nr;
+ dec->frame_nr++;
+ GST_BUFFER_OFFSET_END (buffer) = dec->frame_nr;
+ gst_buffer_set_caps (GST_BUFFER (buffer), GST_PAD_CAPS (dec->src));
+
+ return gst_pad_push (dec->src, GST_BUFFER (buffer));
+}
+
+static GstStateChangeReturn
+gst_vdp_decoder_change_state (GstElement * element, GstStateChange transition)
+{
+ GstVdpDecoder *dec;
+
+ dec = GST_VDPAU_DECODER (element);
+
+ switch (transition) {
+ case GST_STATE_CHANGE_NULL_TO_READY:
+ dec->device = gst_vdp_get_device (dec->display_name);
+ break;
+ case GST_STATE_CHANGE_READY_TO_NULL:
+ g_object_unref (dec->device);
+ dec->device = NULL;
+ break;
+ default:
+ break;
+ }
+
+ return GST_STATE_CHANGE_SUCCESS;
+}
+
+static gboolean
+gst_vdp_decoder_sink_set_caps (GstPad * pad, GstCaps * caps)
+{
+ GstVdpDecoder *dec = GST_VDPAU_DECODER (GST_OBJECT_PARENT (pad));
+ GstVdpDecoderClass *dec_class = GST_VDPAU_DECODER_GET_CLASS (dec);
+
+ GstCaps *src_caps, *new_caps;
+ GstStructure *structure;
+ gint width, height;
+ gint framerate_numerator, framerate_denominator;
+ gint par_numerator, par_denominator;
+ gboolean res;
+
+ structure = gst_caps_get_structure (caps, 0);
+ gst_structure_get_int (structure, "width", &width);
+ gst_structure_get_int (structure, "height", &height);
+ gst_structure_get_fraction (structure, "framerate",
+ &framerate_numerator, &framerate_denominator);
+ gst_structure_get_fraction (structure, "pixel-aspect-ratio",
+ &par_numerator, &par_denominator);
+
+ src_caps = gst_pad_get_allowed_caps (dec->src);
+ if (G_UNLIKELY (!src_caps))
+ return FALSE;
+
+ new_caps = gst_caps_copy_nth (src_caps, 0);
+ gst_caps_unref (src_caps);
+ structure = gst_caps_get_structure (new_caps, 0);
+ gst_structure_set (structure,
+ "device", G_TYPE_OBJECT, dec->device,
+ "chroma-type", G_TYPE_INT, VDP_CHROMA_TYPE_420,
+ "width", G_TYPE_INT, width,
+ "height", G_TYPE_INT, height,
+ "framerate", GST_TYPE_FRACTION, framerate_numerator,
+ framerate_denominator,
+ "pixel-aspect-ratio", GST_TYPE_FRACTION, par_numerator,
+ par_denominator, NULL);
+
+ gst_pad_fixate_caps (dec->src, new_caps);
+ res = gst_pad_set_caps (dec->src, new_caps);
+
+ gst_caps_unref (new_caps);
+
+ if (G_UNLIKELY (!res))
+ return FALSE;
+
+ dec->width = width;
+ dec->height = height;
+ dec->framerate_numerator = framerate_numerator;
+ dec->framerate_denominator = framerate_denominator;
+
+ if (dec_class->set_caps && !dec_class->set_caps (dec, caps))
+ return FALSE;
+
+ return TRUE;
+}
+
+/* GObject vmethod implementations */
+
+static void
+gst_vdp_decoder_base_init (gpointer klass)
+{
+ GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
+
+ gst_element_class_set_details_simple (element_class,
+ "VdpauDecoder",
+ "Codec/Decoder/Video",
+ "VDPAU decoder base class",
+ "Carl-Anton Ingmarsson <ca.ingmarsson@gmail.com>");
+
+ gst_element_class_add_pad_template (element_class,
+ gst_static_pad_template_get (&src_template));
+}
+
+/* initialize the vdpaudecoder's class */
+static void
+gst_vdp_decoder_class_init (GstVdpDecoderClass * klass)
+{
+ GObjectClass *gobject_class;
+ GstElementClass *gstelement_class;
+
+ gobject_class = (GObjectClass *) klass;
+ gstelement_class = (GstElementClass *) klass;
+
+ gobject_class->finalize = gst_vdp_decoder_finalize;
+ gobject_class->set_property = gst_vdp_decoder_set_property;
+ gobject_class->get_property = gst_vdp_decoder_get_property;
+
+ g_object_class_install_property (gobject_class, PROP_DISPLAY,
+ g_param_spec_string ("display", "Display", "X Display name",
+ NULL, G_PARAM_READWRITE | G_PARAM_CONSTRUCT));
+
+ g_object_class_install_property (gobject_class, PROP_SILENT,
+ g_param_spec_boolean ("silent", "Silent", "Produce verbose output ?",
+ FALSE, G_PARAM_READWRITE | GST_PARAM_CONTROLLABLE));
+
+ gstelement_class->change_state = gst_vdp_decoder_change_state;
+}
+
+static void
+gst_vdp_decoder_init (GstVdpDecoder * dec, GstVdpDecoderClass * klass)
+{
+ dec->display_name = NULL;
+ dec->device = NULL;
+ dec->silent = FALSE;
+
+ dec->height = 0;
+ dec->width = 0;
+ dec->framerate_numerator = 0;
+ dec->framerate_denominator = 0;
+
+ dec->frame_nr = 0;
+
+ dec->src = gst_pad_new_from_static_template (&src_template, "src");
+ gst_element_add_pad (GST_ELEMENT (dec), dec->src);
+
+ dec->sink = gst_pad_new_from_template (gst_element_class_get_pad_template
+ (GST_ELEMENT_CLASS (klass), "sink"), "sink");
+ gst_pad_set_setcaps_function (dec->sink, gst_vdp_decoder_sink_set_caps);
+ gst_element_add_pad (GST_ELEMENT (dec), dec->sink);
+ gst_pad_set_active (dec->sink, TRUE);
+}
+
+static void
+gst_vdp_decoder_finalize (GObject * object)
+{
+ GstVdpDecoder *dec = (GstVdpDecoder *) object;
+
+ if (dec->device)
+ g_object_unref (dec->device);
+
+ g_free (dec->display_name);
+}
+
+static void
+gst_vdp_decoder_set_property (GObject * object, guint prop_id,
+ const GValue * value, GParamSpec * pspec)
+{
+ GstVdpDecoder *dec = GST_VDPAU_DECODER (object);
+
+ switch (prop_id) {
+ case PROP_DISPLAY:
+ g_free (dec->display_name);
+ dec->display_name = g_value_dup_string (value);
+ break;
+ case PROP_SILENT:
+ dec->silent = g_value_get_boolean (value);
+ break;
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
+}
+
+static void
+gst_vdp_decoder_get_property (GObject * object, guint prop_id,
+ GValue * value, GParamSpec * pspec)
+{
+ GstVdpDecoder *dec = GST_VDPAU_DECODER (object);
+
+ switch (prop_id) {
+ case PROP_DISPLAY:
+ g_value_set_string (value, dec->display_name);
+ break;
+ case PROP_SILENT:
+ g_value_set_boolean (value, dec->silent);
+ break;
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
+}
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