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vaapidecodebin: enable vpp if it is available
Instead of creating and adding VPP into the bin at setup, we wait until we are sure the VA driver supports it. We know that when the VA video context is received by the bin. Afterwards, it is decided to instanciate and link the VPP or not. This is more efficient and safer than waiting the VPP to fail and then disable it. https://bugzilla.gnome.org/show_bug.cgi?id=749554
This commit is contained in:
Víctor Manuel Jáquez Leal
parent
157ce77727
commit
5c799b35f7
2 changed files with 123 additions and 58 deletions
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@ -27,6 +27,7 @@
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#include <gst/pbutils/pbutils.h>
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#include "gstvaapipluginutil.h"
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#include "gstvaapidecodebin.h"
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#include "gstvaapivideocontext.h"
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#define GST_PLUGIN_NAME "vaapidecodebin"
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#define GST_PLUGIN_DESC "A Bin of VA-API elements: vaapidecode ! queue ! vaapipostproc"
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@ -101,30 +102,73 @@ GST_STATIC_PAD_TEMPLATE ("src",
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G_DEFINE_TYPE (GstVaapiDecodeBin, gst_vaapi_decode_bin, GST_TYPE_BIN);
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/* Remove the vaapipostproc if already added and reset the ghost pad target */
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static void
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disable_vpp (GstVaapiDecodeBin * vaapidecbin)
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post_missing_element_message (GstVaapiDecodeBin * vaapidecbin,
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const gchar * missing_factory)
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{
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GstPad *pad;
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GstStateChangeReturn ret;
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GstState state;
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GstMessage *msg;
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/*Fixme: Add run-time disabling support */
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ret =
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gst_element_get_state (GST_ELEMENT (vaapidecbin), &state, NULL,
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GST_CLOCK_TIME_NONE);
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if (ret != GST_STATE_CHANGE_SUCCESS || state > GST_STATE_NULL) {
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GST_WARNING_OBJECT (vaapidecbin, "Failed to set disable-vpp property!,,"
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"No support for run-time disabling, Ignoring the user request to disable VPP.");
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return;
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GST_ERROR_OBJECT (vaapidecbin, "Failed to create %s element",
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missing_factory);
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msg =
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gst_missing_element_message_new (GST_ELEMENT_CAST (vaapidecbin),
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missing_factory);
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gst_element_post_message (GST_ELEMENT_CAST (vaapidecbin), msg);
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}
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static gboolean
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activate_vpp (GstVaapiDecodeBin * vaapidecbin)
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{
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GstElement *src;
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if (vaapidecbin->ghost_pad_src || vaapidecbin->postproc)
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return TRUE;
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if (!vaapidecbin->has_vpp || vaapidecbin->disable_vpp) {
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src = vaapidecbin->queue;
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goto connect_src_ghost_pad;
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}
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gst_element_set_state (vaapidecbin->postproc, GST_STATE_NULL);
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gst_bin_remove (GST_BIN (vaapidecbin), vaapidecbin->postproc);
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/* create the postproc */
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vaapidecbin->postproc =
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gst_element_factory_make ("vaapipostproc", "vaapipostproc");
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if (!vaapidecbin->postproc)
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goto error_element_missing;
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pad = gst_element_get_static_pad (GST_ELEMENT (vaapidecbin->queue), "src");
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gst_ghost_pad_set_target ((GstGhostPad *) vaapidecbin->ghost_pad_src, pad);
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gst_object_unref (pad);
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g_object_set (G_OBJECT (vaapidecbin->postproc), "deinterlace-method",
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vaapidecbin->deinterlace_method, NULL);
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gst_bin_add (GST_BIN (vaapidecbin), vaapidecbin->postproc);
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if (!gst_element_link_pads_full (vaapidecbin->queue, "src",
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vaapidecbin->postproc, "sink", GST_PAD_LINK_CHECK_NOTHING))
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goto error_link_pad;
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GST_DEBUG_OBJECT (vaapidecbin, "Enabling VPP");
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src = vaapidecbin->postproc;
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goto connect_src_ghost_pad;
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error_element_missing:
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{
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post_missing_element_message (vaapidecbin, "vaapipostproc");
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return FALSE;
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}
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error_link_pad:
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{
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GST_ERROR_OBJECT (vaapidecbin, "Failed to link the child elements");
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return FALSE;
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}
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connect_src_ghost_pad:
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{
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GstPad *srcpad, *ghostpad;
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srcpad = gst_element_get_static_pad (src, "src");
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ghostpad = gst_ghost_pad_new ("src", srcpad);
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vaapidecbin->ghost_pad_src = ghostpad;
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gst_object_unref (srcpad);
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gst_element_add_pad (GST_ELEMENT (vaapidecbin), ghostpad);
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return TRUE;
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}
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}
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static void
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@ -155,11 +199,19 @@ gst_vaapi_decode_bin_set_property (GObject * object,
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vaapidecbin->deinterlace_method, NULL);
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break;
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case PROP_DISABLE_VPP:
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vaapidecbin->disable_vpp = g_value_get_boolean (value);
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/* Remove the vaapipostpro */
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if (vaapidecbin->disable_vpp && vaapidecbin->postproc)
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disable_vpp (vaapidecbin);
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{
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gboolean disable_vpp;
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disable_vpp = g_value_get_boolean (value);
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if (!disable_vpp && !vaapidecbin->has_vpp)
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GST_WARNING_OBJECT (vaapidecbin,
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"Cannot enable VPP since the VA driver does not support it");
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else
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vaapidecbin->disable_vpp = disable_vpp;
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/* @TODO: Add run-time disabling support */
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break;
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}
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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@ -194,18 +246,62 @@ gst_vaapi_decode_bin_get_property (GObject * object,
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}
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}
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static void
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gst_vaapi_decode_bin_handle_message (GstBin * bin, GstMessage * message)
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{
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GstVaapiDecodeBin *vaapidecbin = GST_VAAPI_DECODE_BIN (bin);
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GstMessageType type;
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GstContext *context = NULL;
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const gchar *context_type;
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GstVaapiDisplay *display = NULL;
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type = GST_MESSAGE_TYPE (message);
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if (type != GST_MESSAGE_HAVE_CONTEXT)
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goto bail;
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gst_message_parse_have_context (message, &context);
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if (!context)
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goto bail;
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context_type = gst_context_get_context_type (context);
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if (g_strcmp0 (context_type, GST_VAAPI_DISPLAY_CONTEXT_TYPE_NAME) != 0)
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goto bail;
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if (!gst_vaapi_video_context_get_display (context, &display))
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goto bail;
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vaapidecbin->has_vpp = gst_vaapi_display_has_video_processing (display);
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/* the underlying VA driver implementation doesn't support video
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* post-processing, hence we have to disable it */
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if (!vaapidecbin->has_vpp) {
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GST_WARNING_OBJECT (vaapidecbin, "VA driver doesn't support VPP");
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if (!vaapidecbin->disable_vpp) {
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vaapidecbin->disable_vpp = TRUE;
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}
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}
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activate_vpp (vaapidecbin);
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bail:
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GST_BIN_CLASS (gst_vaapi_decode_bin_parent_class)->handle_message (bin,
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message);
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}
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static void
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gst_vaapi_decode_bin_class_init (GstVaapiDecodeBinClass * klass)
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{
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GObjectClass *gobject_class;
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GstElementClass *element_class;
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GstBinClass *bin_class;
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gobject_class = G_OBJECT_CLASS (klass);
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element_class = GST_ELEMENT_CLASS (klass);
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bin_class = GST_BIN_CLASS (klass);
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gobject_class->set_property = gst_vaapi_decode_bin_set_property;
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gobject_class->get_property = gst_vaapi_decode_bin_get_property;
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bin_class->handle_message =
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GST_DEBUG_FUNCPTR (gst_vaapi_decode_bin_handle_message);
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gst_element_class_set_static_metadata (element_class,
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"VA-API Decode Bin",
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"Codec/Decoder/Video",
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@ -279,35 +375,11 @@ gst_vaapi_decode_bin_configure (GstVaapiDecodeBin * vaapidecbin)
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vaapidecbin->queue, "sink", GST_PAD_LINK_CHECK_NOTHING))
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goto error_link_pad;
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if (!vaapidecbin->disable_vpp) {
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/* create the postproc */
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vaapidecbin->postproc =
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gst_element_factory_make ("vaapipostproc", "vaapipostproc");
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if (!vaapidecbin->postproc) {
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missing_factory = "vaapipostproc";
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goto error_element_missing;
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}
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g_object_set (G_OBJECT (vaapidecbin->postproc),
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"deinterlace-method", vaapidecbin->deinterlace_method, NULL);
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gst_bin_add (GST_BIN (vaapidecbin), vaapidecbin->postproc);
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if (!gst_element_link_pads_full (vaapidecbin->queue, "src",
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vaapidecbin->postproc, "sink", GST_PAD_LINK_CHECK_NOTHING))
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goto error_link_pad;
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}
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return TRUE;
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error_element_missing:
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{
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GstMessage *msg;
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GST_ERROR_OBJECT (vaapidecbin, "Failed to create %s element",
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missing_factory);
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msg =
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gst_missing_element_message_new (GST_ELEMENT_CAST (vaapidecbin),
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missing_factory);
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gst_element_post_message (GST_ELEMENT_CAST (vaapidecbin), msg);
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post_missing_element_message (vaapidecbin, missing_factory);
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return FALSE;
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}
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error_link_pad:
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@ -321,7 +393,9 @@ static void
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gst_vaapi_decode_bin_init (GstVaapiDecodeBin * vaapidecbin)
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{
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GstPad *element_pad, *ghost_pad;
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GstElement *src_element;
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/* let's assume we have VPP until we prove the opposite */
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vaapidecbin->has_vpp = TRUE;
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if (!gst_vaapi_decode_bin_configure (vaapidecbin))
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return;
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@ -334,14 +408,4 @@ gst_vaapi_decode_bin_init (GstVaapiDecodeBin * vaapidecbin)
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GST_PAD_PAD_TEMPLATE (element_pad));
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gst_object_unref (element_pad);
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gst_element_add_pad (GST_ELEMENT (vaapidecbin), ghost_pad);
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/* create ghost pad src */
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src_element =
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vaapidecbin->disable_vpp ? vaapidecbin->queue : vaapidecbin->postproc;
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element_pad = gst_element_get_static_pad (GST_ELEMENT (src_element), "src");
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ghost_pad = gst_ghost_pad_new ("src", element_pad);
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vaapidecbin->ghost_pad_src = ghost_pad;
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gst_object_unref (element_pad);
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gst_element_add_pad (GST_ELEMENT (vaapidecbin), ghost_pad);
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}
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@ -55,6 +55,7 @@ typedef struct _GstVaapiDecodeBin {
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guint64 max_size_time;
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GstVaapiDeinterlaceMethod deinterlace_method;
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gboolean disable_vpp;
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gboolean has_vpp;
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} GstVaapiDecodeBin;
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