From e737b9a916d8641b6ac0cc6ea8fd4f3326b9d004 Mon Sep 17 00:00:00 2001
From: Carl-Anton Ingmarsson <ca.ingmarsson@gmail.com>
Date: Mon, 27 Apr 2009 20:50:11 +0200
Subject: vdpaumpegdec: destroy the VdpDecoder and reset the decoder on state
 change

---
 sys/vdpau/gstvdpdecoder.c     | 27 ---------------------------
 sys/vdpau/gstvdpmpegdecoder.c | 38 ++++++++++++++++++++++++++++++++++++++
 2 files changed, 38 insertions(+), 27 deletions(-)

(limited to 'sys/vdpau')

diff --git a/sys/vdpau/gstvdpdecoder.c b/sys/vdpau/gstvdpdecoder.c
index 8b79dff0..7aca6c2f 100644
--- a/sys/vdpau/gstvdpdecoder.c
+++ b/sys/vdpau/gstvdpdecoder.c
@@ -75,28 +75,6 @@ gst_vdp_decoder_push_video_buffer (GstVdpDecoder * dec,
   return gst_pad_push (dec->src, GST_BUFFER (buffer));
 }
 
-static GstStateChangeReturn
-gst_vdp_decoder_change_state (GstElement * element, GstStateChange transition)
-{
-  GstVdpDecoder *dec;
-
-  dec = GST_VDP_DECODER (element);
-
-  switch (transition) {
-    case GST_STATE_CHANGE_READY_TO_PAUSED:
-      dec->device = gst_vdp_get_device (dec->display_name);
-      break;
-    case GST_STATE_CHANGE_PAUSED_TO_READY:
-      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)
 {
@@ -182,8 +160,6 @@ gst_vdp_decoder_class_init (GstVdpDecoderClass * klass)
   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));
-
-  gstelement_class->change_state = gst_vdp_decoder_change_state;
 }
 
 static void
@@ -214,9 +190,6 @@ gst_vdp_decoder_finalize (GObject * object)
 {
   GstVdpDecoder *dec = (GstVdpDecoder *) object;
 
-  if (dec->device)
-    g_object_unref (dec->device);
-
   g_free (dec->display_name);
 }
 
diff --git a/sys/vdpau/gstvdpmpegdecoder.c b/sys/vdpau/gstvdpmpegdecoder.c
index 5b461268..1f15feaf 100644
--- a/sys/vdpau/gstvdpmpegdecoder.c
+++ b/sys/vdpau/gstvdpmpegdecoder.c
@@ -120,6 +120,12 @@ gst_vdp_mpeg_decoder_set_caps (GstVdpDecoder * dec, GstCaps * caps)
       &hdr.non_intra_quantizer_matrix, 64);
 
   device = dec->device;
+
+  if (mpeg_dec->decoder != VDP_INVALID_HANDLE) {
+    device->vdp_decoder_destroy (mpeg_dec->decoder);
+    mpeg_dec->decoder = VDP_INVALID_HANDLE;
+  }
+
   status = device->vdp_decoder_create (device->device, profile, dec->width,
       dec->height, 2, &mpeg_dec->decoder);
   if (status != VDP_STATUS_OK) {
@@ -499,6 +505,36 @@ gst_vdp_mpeg_decoder_sink_event (GstPad * pad, GstEvent * event)
   return res;
 }
 
+static GstStateChangeReturn
+gst_vdp_mpeg_decoder_change_state (GstElement * element,
+    GstStateChange transition)
+{
+  GstVdpMpegDecoder *mpeg_dec;
+  GstVdpDecoder *dec;
+
+  mpeg_dec = GST_VDP_MPEG_DECODER (element);
+  dec = GST_VDP_DECODER (mpeg_dec);
+
+  switch (transition) {
+    case GST_STATE_CHANGE_READY_TO_PAUSED:
+      dec->device = gst_vdp_get_device (dec->display_name);
+      break;
+    case GST_STATE_CHANGE_PAUSED_TO_READY:
+      gst_vdp_mpeg_decoder_reset (mpeg_dec);
+
+      dec->device->vdp_decoder_destroy (mpeg_dec->decoder);
+      mpeg_dec->decoder = VDP_INVALID_HANDLE;
+
+      g_object_unref (dec->device);
+      dec->device = NULL;
+      break;
+    default:
+      break;
+  }
+
+  return GST_STATE_CHANGE_SUCCESS;
+}
+
 /* GObject vmethod implementations */
 
 static void
@@ -533,6 +569,8 @@ gst_vdp_mpeg_decoder_class_init (GstVdpMpegDecoderClass * klass)
   gobject_class->get_property = gst_vdp_mpeg_decoder_get_property;
 
   vdpaudec_class->set_caps = gst_vdp_mpeg_decoder_set_caps;
+
+  gstelement_class->change_state = gst_vdp_mpeg_decoder_change_state;
 }
 
 static void
-- 
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