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1216 lines
36 KiB
C
1216 lines
36 KiB
C
/* GStreamer DVD Sub-Picture Unit
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* Copyright (C) 2007 Fluendo S.A. <info@fluendo.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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/**
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* SECTION:element-dvdspu
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*
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* DVD sub picture overlay element.
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*
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* <refsect2>
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* <title>Example launch line</title>
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* |[
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* FIXME: gst-launch ...
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* ]| FIXME: description for the sample launch pipeline
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* </refsect2>
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*/
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#ifdef HAVE_CONFIG_H
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# include <config.h>
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#endif
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/* FIXME 0.11: suppress warnings for deprecated API such as GStaticRecMutex
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* with newer GLib versions (>= 2.31.0) */
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#define GLIB_DISABLE_DEPRECATION_WARNINGS
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#include <gst/gst-i18n-plugin.h>
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#include <gst/video/video.h>
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#include <string.h>
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#include <gst/gst.h>
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#include "gstdvdspu.h"
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GST_DEBUG_CATEGORY (dvdspu_debug);
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#define GST_CAT_DEFAULT dvdspu_debug
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/* Filter signals and args */
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enum
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{
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/* FILL ME */
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LAST_SIGNAL
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};
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static GstStaticPadTemplate video_sink_factory =
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GST_STATIC_PAD_TEMPLATE ("video",
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GST_PAD_SINK,
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GST_PAD_ALWAYS,
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GST_STATIC_CAPS ("video/x-raw, " "format = (string) { I420 }, "
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"width = (int) [ 16, 4096 ], " "height = (int) [ 16, 4096 ]")
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/* FIXME: Can support YV12 one day too */
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);
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static GstStaticPadTemplate src_factory = GST_STATIC_PAD_TEMPLATE ("src",
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GST_PAD_SRC,
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GST_PAD_ALWAYS,
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GST_STATIC_CAPS ("video/x-raw, " "format = (string) { I420 }, "
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"width = (int) [ 16, 4096 ], " "height = (int) [ 16, 4096 ]")
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/* FIXME: Can support YV12 one day too */
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);
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static GstStaticPadTemplate subpic_sink_factory =
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GST_STATIC_PAD_TEMPLATE ("subpicture",
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GST_PAD_SINK,
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GST_PAD_ALWAYS,
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GST_STATIC_CAPS ("video/x-dvd-subpicture; subpicture/x-pgs")
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);
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static const guint32 default_clut[16] = {
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0xb48080, 0x248080, 0x628080, 0xd78080,
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0x808080, 0x808080, 0x808080, 0x808080,
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0x808080, 0x808080, 0x808080, 0x808080,
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0x808080, 0x808080, 0x808080, 0x808080
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};
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#define gst_dvd_spu_parent_class parent_class
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G_DEFINE_TYPE (GstDVDSpu, gst_dvd_spu, GST_TYPE_ELEMENT);
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static void gst_dvd_spu_dispose (GObject * object);
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static void gst_dvd_spu_finalize (GObject * object);
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static GstStateChangeReturn gst_dvd_spu_change_state (GstElement * element,
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GstStateChange transition);
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static gboolean gst_dvd_spu_src_event (GstPad * pad, GstObject * parent,
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GstEvent * event);
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static gboolean gst_dvd_spu_src_query (GstPad * pad, GstObject * parent,
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GstQuery * query);
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static GstCaps *gst_dvd_spu_video_proxy_getcaps (GstPad * pad,
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GstCaps * filter);
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static gboolean gst_dvd_spu_video_set_caps (GstPad * pad, GstCaps * caps);
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static GstFlowReturn gst_dvd_spu_video_chain (GstPad * pad, GstObject * parent,
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GstBuffer * buf);
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static gboolean gst_dvd_spu_video_event (GstPad * pad, GstObject * parent,
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GstEvent * event);
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static gboolean gst_dvd_spu_video_query (GstPad * pad, GstObject * parent,
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GstQuery * query);
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static void gst_dvd_spu_redraw_still (GstDVDSpu * dvdspu, gboolean force);
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static void gst_dvd_spu_check_still_updates (GstDVDSpu * dvdspu);
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static GstFlowReturn gst_dvd_spu_subpic_chain (GstPad * pad, GstObject * parent,
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GstBuffer * buf);
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static gboolean gst_dvd_spu_subpic_event (GstPad * pad, GstObject * parent,
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GstEvent * event);
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static gboolean gst_dvd_spu_subpic_set_caps (GstPad * pad, GstCaps * caps);
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static void gst_dvd_spu_clear (GstDVDSpu * dvdspu);
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static void gst_dvd_spu_flush_spu_info (GstDVDSpu * dvdspu,
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gboolean process_events);
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static void gst_dvd_spu_advance_spu (GstDVDSpu * dvdspu, GstClockTime new_ts);
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static void gstspu_render (GstDVDSpu * dvdspu, GstBuffer * buf);
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static GstFlowReturn
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dvdspu_handle_vid_buffer (GstDVDSpu * dvdspu, GstBuffer * buf);
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static void gst_dvd_spu_handle_dvd_event (GstDVDSpu * dvdspu, GstEvent * event);
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static void
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gst_dvd_spu_class_init (GstDVDSpuClass * klass)
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{
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GObjectClass *gobject_class;
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GstElementClass *gstelement_class;
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gobject_class = (GObjectClass *) klass;
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gstelement_class = (GstElementClass *) klass;
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gobject_class->dispose = (GObjectFinalizeFunc) gst_dvd_spu_dispose;
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gobject_class->finalize = (GObjectFinalizeFunc) gst_dvd_spu_finalize;
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gstelement_class->change_state = gst_dvd_spu_change_state;
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gst_element_class_add_pad_template (gstelement_class,
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gst_static_pad_template_get (&src_factory));
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gst_element_class_add_pad_template (gstelement_class,
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gst_static_pad_template_get (&video_sink_factory));
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gst_element_class_add_pad_template (gstelement_class,
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gst_static_pad_template_get (&subpic_sink_factory));
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gst_element_class_set_details_simple (gstelement_class, "Sub-picture Overlay",
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"Mixer/Video/Overlay/SubPicture/DVD/Bluray",
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"Parses Sub-Picture command streams and renders the SPU overlay "
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"onto the video as it passes through",
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"Jan Schmidt <thaytan@noraisin.net>");
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}
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static void
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gst_dvd_spu_init (GstDVDSpu * dvdspu)
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{
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dvdspu->videosinkpad =
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gst_pad_new_from_static_template (&video_sink_factory, "video");
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gst_pad_set_chain_function (dvdspu->videosinkpad, gst_dvd_spu_video_chain);
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gst_pad_set_event_function (dvdspu->videosinkpad, gst_dvd_spu_video_event);
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gst_pad_set_query_function (dvdspu->videosinkpad, gst_dvd_spu_video_query);
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dvdspu->srcpad = gst_pad_new_from_static_template (&src_factory, "src");
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gst_pad_set_event_function (dvdspu->srcpad, gst_dvd_spu_src_event);
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gst_pad_set_query_function (dvdspu->srcpad, gst_dvd_spu_src_query);
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dvdspu->subpic_sinkpad =
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gst_pad_new_from_static_template (&subpic_sink_factory, "subpicture");
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gst_pad_set_chain_function (dvdspu->subpic_sinkpad, gst_dvd_spu_subpic_chain);
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gst_pad_set_event_function (dvdspu->subpic_sinkpad, gst_dvd_spu_subpic_event);
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gst_element_add_pad (GST_ELEMENT (dvdspu), dvdspu->videosinkpad);
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gst_element_add_pad (GST_ELEMENT (dvdspu), dvdspu->subpic_sinkpad);
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gst_element_add_pad (GST_ELEMENT (dvdspu), dvdspu->srcpad);
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g_mutex_init (&dvdspu->spu_lock);
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dvdspu->pending_spus = g_queue_new ();
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gst_dvd_spu_clear (dvdspu);
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}
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static void
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gst_dvd_spu_clear (GstDVDSpu * dvdspu)
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{
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gst_dvd_spu_flush_spu_info (dvdspu, FALSE);
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gst_segment_init (&dvdspu->subp_seg, GST_FORMAT_UNDEFINED);
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dvdspu->spu_input_type = SPU_INPUT_TYPE_NONE;
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gst_buffer_replace (&dvdspu->ref_frame, NULL);
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gst_buffer_replace (&dvdspu->pending_frame, NULL);
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dvdspu->spu_state.info.fps_n = 25;
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dvdspu->spu_state.info.fps_d = 1;
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gst_segment_init (&dvdspu->video_seg, GST_FORMAT_UNDEFINED);
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}
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static void
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gst_dvd_spu_dispose (GObject * object)
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{
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GstDVDSpu *dvdspu = GST_DVD_SPU (object);
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/* need to hold the SPU lock in case other stuff is still running... */
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DVD_SPU_LOCK (dvdspu);
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gst_dvd_spu_clear (dvdspu);
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DVD_SPU_UNLOCK (dvdspu);
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G_OBJECT_CLASS (parent_class)->dispose (object);
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}
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static void
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gst_dvd_spu_finalize (GObject * object)
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{
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GstDVDSpu *dvdspu = GST_DVD_SPU (object);
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gint i;
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for (i = 0; i < 3; i++) {
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if (dvdspu->spu_state.comp_bufs[i] != NULL) {
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g_free (dvdspu->spu_state.comp_bufs[i]);
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dvdspu->spu_state.comp_bufs[i] = NULL;
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}
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}
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g_queue_free (dvdspu->pending_spus);
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g_mutex_clear (&dvdspu->spu_lock);
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G_OBJECT_CLASS (parent_class)->finalize (object);
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}
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/* With SPU lock held, clear the queue of SPU packets */
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static void
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gst_dvd_spu_flush_spu_info (GstDVDSpu * dvdspu, gboolean keep_events)
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{
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SpuPacket *packet;
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SpuState *state = &dvdspu->spu_state;
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GQueue tmp_q = G_QUEUE_INIT;
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GST_INFO_OBJECT (dvdspu, "Flushing SPU information");
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if (dvdspu->partial_spu) {
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gst_buffer_unref (dvdspu->partial_spu);
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dvdspu->partial_spu = NULL;
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}
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packet = (SpuPacket *) g_queue_pop_head (dvdspu->pending_spus);
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while (packet != NULL) {
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if (packet->buf) {
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gst_buffer_unref (packet->buf);
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g_assert (packet->event == NULL);
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g_free (packet);
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} else if (packet->event) {
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if (keep_events) {
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g_queue_push_tail (&tmp_q, packet);
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} else {
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gst_event_unref (packet->event);
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g_free (packet);
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}
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}
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packet = (SpuPacket *) g_queue_pop_head (dvdspu->pending_spus);
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}
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/* Push anything we decided to keep back onto the pending_spus list */
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for (packet = g_queue_pop_head (&tmp_q); packet != NULL;
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packet = g_queue_pop_head (&tmp_q))
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g_queue_push_tail (dvdspu->pending_spus, packet);
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state->flags &= ~(SPU_STATE_FLAGS_MASK);
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state->next_ts = GST_CLOCK_TIME_NONE;
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switch (dvdspu->spu_input_type) {
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case SPU_INPUT_TYPE_VOBSUB:
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gstspu_vobsub_flush (dvdspu);
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break;
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case SPU_INPUT_TYPE_PGS:
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gstspu_pgs_flush (dvdspu);
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break;
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default:
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break;
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}
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}
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static gboolean
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gst_dvd_spu_src_event (GstPad * pad, GstObject * parent, GstEvent * event)
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{
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GstDVDSpu *dvdspu = GST_DVD_SPU (parent);
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GstPad *peer;
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gboolean res = TRUE;
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peer = gst_pad_get_peer (dvdspu->videosinkpad);
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if (peer) {
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res = gst_pad_send_event (peer, event);
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gst_object_unref (peer);
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}
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return res;
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}
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static gboolean
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gst_dvd_spu_src_query (GstPad * pad, GstObject * parent, GstQuery * query)
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{
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gboolean res = FALSE;
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switch (GST_QUERY_TYPE (query)) {
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case GST_QUERY_CAPS:
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{
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GstCaps *filter, *caps;
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gst_query_parse_caps (query, &filter);
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caps = gst_dvd_spu_video_proxy_getcaps (pad, filter);
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gst_query_set_caps_result (query, caps);
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gst_caps_unref (caps);
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res = TRUE;
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break;
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}
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default:
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res = gst_pad_query_default (pad, parent, query);
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break;
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}
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return res;
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}
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static gboolean
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gst_dvd_spu_video_set_caps (GstPad * pad, GstCaps * caps)
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{
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GstDVDSpu *dvdspu = GST_DVD_SPU (gst_pad_get_parent (pad));
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gboolean res = FALSE;
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GstVideoInfo info;
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gint i;
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SpuState *state;
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if (!gst_video_info_from_caps (&info, caps))
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goto done;
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DVD_SPU_LOCK (dvdspu);
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state = &dvdspu->spu_state;
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state->info = info;
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for (i = 0; i < 3; i++) {
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state->comp_bufs[i] = g_realloc (state->comp_bufs[i],
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sizeof (guint32) * info.width);
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}
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DVD_SPU_UNLOCK (dvdspu);
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res = TRUE;
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done:
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gst_object_unref (dvdspu);
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return res;
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}
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static GstCaps *
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gst_dvd_spu_video_proxy_getcaps (GstPad * pad, GstCaps * filter)
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{
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GstDVDSpu *dvdspu = GST_DVD_SPU (gst_pad_get_parent (pad));
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GstCaps *caps;
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GstPad *otherpad;
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/* Proxy the getcaps between videosink and the srcpad, ignoring the
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* subpicture sink pad */
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otherpad = (pad == dvdspu->srcpad) ? dvdspu->videosinkpad : dvdspu->srcpad;
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caps = gst_pad_peer_query_caps (otherpad, filter);
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if (caps) {
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GstCaps *temp, *templ;
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templ = gst_pad_get_pad_template_caps (otherpad);
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temp = gst_caps_intersect (caps, templ);
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gst_caps_unref (templ);
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gst_caps_unref (caps);
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caps = temp;
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} else {
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caps = gst_pad_get_pad_template_caps (pad);
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}
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gst_object_unref (dvdspu);
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return caps;
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}
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static gboolean
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gst_dvd_spu_video_event (GstPad * pad, GstObject * parent, GstEvent * event)
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{
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GstDVDSpu *dvdspu = (GstDVDSpu *) parent;
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SpuState *state = &dvdspu->spu_state;
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gboolean res = TRUE;
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switch (GST_EVENT_TYPE (event)) {
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case GST_EVENT_CAPS:
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{
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GstCaps *caps;
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gst_event_parse_caps (event, &caps);
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res = gst_dvd_spu_video_set_caps (pad, caps);
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if (res)
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res = gst_pad_push_event (dvdspu->srcpad, event);
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else
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gst_event_unref (event);
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break;
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}
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case GST_EVENT_CUSTOM_DOWNSTREAM:
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case GST_EVENT_CUSTOM_DOWNSTREAM_OOB:
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{
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gboolean in_still;
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if (gst_video_event_parse_still_frame (event, &in_still)) {
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GstBuffer *to_push = NULL;
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/* Forward the event before handling */
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res = gst_pad_event_default (pad, parent, event);
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GST_DEBUG_OBJECT (dvdspu,
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"Still frame event on video pad: in-still = %d", in_still);
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DVD_SPU_LOCK (dvdspu);
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if (in_still) {
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state->flags |= SPU_STATE_STILL_FRAME;
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/* Entering still. Advance the SPU to make sure the state is
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* up to date */
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gst_dvd_spu_check_still_updates (dvdspu);
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/* And re-draw the still frame to make sure it appears on
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* screen, otherwise the last frame might have been discarded
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* by QoS */
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gst_dvd_spu_redraw_still (dvdspu, TRUE);
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to_push = dvdspu->pending_frame;
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dvdspu->pending_frame = NULL;
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} else {
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state->flags &= ~(SPU_STATE_STILL_FRAME);
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}
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DVD_SPU_UNLOCK (dvdspu);
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if (to_push)
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gst_pad_push (dvdspu->srcpad, to_push);
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} else {
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GST_DEBUG_OBJECT (dvdspu,
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"Custom event %" GST_PTR_FORMAT " on video pad", event);
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res = gst_pad_event_default (pad, parent, event);
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}
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break;
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}
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case GST_EVENT_SEGMENT:
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{
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GstSegment seg;
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|
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gst_event_copy_segment (event, &seg);
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if (seg.format != GST_FORMAT_TIME)
|
|
return FALSE;
|
|
|
|
/* Only print updates if they have an end time (don't print start_time
|
|
* updates */
|
|
GST_DEBUG_OBJECT (dvdspu, "video pad Segment: %" GST_SEGMENT_FORMAT,
|
|
&seg);
|
|
|
|
DVD_SPU_LOCK (dvdspu);
|
|
|
|
if (seg.start > dvdspu->video_seg.position) {
|
|
#if 0
|
|
g_print ("Segment update for video. Advancing from %" GST_TIME_FORMAT
|
|
" to %" GST_TIME_FORMAT "\n",
|
|
GST_TIME_ARGS (dvdspu->video_seg.position), GST_TIME_ARGS (start));
|
|
#endif
|
|
while (dvdspu->video_seg.position < seg.start &&
|
|
!(state->flags & SPU_STATE_STILL_FRAME)) {
|
|
DVD_SPU_UNLOCK (dvdspu);
|
|
if (dvdspu_handle_vid_buffer (dvdspu, NULL) != GST_FLOW_OK) {
|
|
DVD_SPU_LOCK (dvdspu);
|
|
break;
|
|
}
|
|
DVD_SPU_LOCK (dvdspu);
|
|
}
|
|
}
|
|
|
|
dvdspu->video_seg = seg;
|
|
DVD_SPU_UNLOCK (dvdspu);
|
|
|
|
res = gst_pad_event_default (pad, parent, event);
|
|
break;
|
|
}
|
|
case GST_EVENT_FLUSH_START:
|
|
res = gst_pad_event_default (pad, parent, event);
|
|
goto done;
|
|
case GST_EVENT_FLUSH_STOP:
|
|
res = gst_pad_event_default (pad, parent, event);
|
|
|
|
DVD_SPU_LOCK (dvdspu);
|
|
gst_segment_init (&dvdspu->video_seg, GST_FORMAT_UNDEFINED);
|
|
gst_buffer_replace (&dvdspu->ref_frame, NULL);
|
|
gst_buffer_replace (&dvdspu->pending_frame, NULL);
|
|
|
|
DVD_SPU_UNLOCK (dvdspu);
|
|
goto done;
|
|
default:
|
|
res = gst_pad_event_default (pad, parent, event);
|
|
break;
|
|
}
|
|
|
|
done:
|
|
return res;
|
|
#if 0
|
|
error:
|
|
gst_event_unref (event);
|
|
return FALSE;
|
|
#endif
|
|
}
|
|
|
|
static gboolean
|
|
gst_dvd_spu_video_query (GstPad * pad, GstObject * parent, GstQuery * query)
|
|
{
|
|
gboolean res = FALSE;
|
|
|
|
switch (GST_QUERY_TYPE (query)) {
|
|
case GST_QUERY_CAPS:
|
|
{
|
|
GstCaps *filter, *caps;
|
|
|
|
gst_query_parse_caps (query, &filter);
|
|
caps = gst_dvd_spu_video_proxy_getcaps (pad, filter);
|
|
gst_query_set_caps_result (query, caps);
|
|
gst_caps_unref (caps);
|
|
res = TRUE;
|
|
break;
|
|
}
|
|
default:
|
|
res = gst_pad_query_default (pad, parent, query);
|
|
break;
|
|
}
|
|
|
|
return res;
|
|
}
|
|
|
|
static GstFlowReturn
|
|
gst_dvd_spu_video_chain (GstPad * pad, GstObject * parent, GstBuffer * buf)
|
|
{
|
|
GstDVDSpu *dvdspu = (GstDVDSpu *) parent;
|
|
GstFlowReturn ret;
|
|
|
|
g_return_val_if_fail (dvdspu != NULL, GST_FLOW_ERROR);
|
|
|
|
GST_LOG_OBJECT (dvdspu, "video buffer %p with TS %" GST_TIME_FORMAT,
|
|
buf, GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (buf)));
|
|
|
|
ret = dvdspu_handle_vid_buffer (dvdspu, buf);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static GstFlowReturn
|
|
dvdspu_handle_vid_buffer (GstDVDSpu * dvdspu, GstBuffer * buf)
|
|
{
|
|
GstClockTime new_ts;
|
|
GstFlowReturn ret;
|
|
gboolean using_ref = FALSE;
|
|
|
|
DVD_SPU_LOCK (dvdspu);
|
|
|
|
if (buf == NULL) {
|
|
GstClockTime next_ts = dvdspu->video_seg.position;
|
|
|
|
next_ts += gst_util_uint64_scale_int (GST_SECOND,
|
|
dvdspu->spu_state.info.fps_d, dvdspu->spu_state.info.fps_n);
|
|
|
|
/* NULL buffer was passed - use the reference frame and update the timestamp,
|
|
* or else there's nothing to draw, and just return GST_FLOW_OK */
|
|
if (dvdspu->ref_frame == NULL) {
|
|
dvdspu->video_seg.position = next_ts;
|
|
goto no_ref_frame;
|
|
}
|
|
|
|
buf = gst_buffer_copy (dvdspu->ref_frame);
|
|
|
|
#if 0
|
|
g_print ("Duping frame %" GST_TIME_FORMAT " with new TS %" GST_TIME_FORMAT
|
|
"\n", GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (buf)),
|
|
GST_TIME_ARGS (next_ts));
|
|
#endif
|
|
|
|
GST_BUFFER_TIMESTAMP (buf) = next_ts;
|
|
using_ref = TRUE;
|
|
}
|
|
|
|
if (GST_BUFFER_TIMESTAMP_IS_VALID (buf)) {
|
|
dvdspu->video_seg.position = GST_BUFFER_TIMESTAMP (buf);
|
|
}
|
|
|
|
new_ts = gst_segment_to_running_time (&dvdspu->video_seg, GST_FORMAT_TIME,
|
|
dvdspu->video_seg.position);
|
|
|
|
#if 0
|
|
g_print ("TS %" GST_TIME_FORMAT " running: %" GST_TIME_FORMAT "\n",
|
|
GST_TIME_ARGS (dvdspu->video_seg.position), GST_TIME_ARGS (new_ts));
|
|
#endif
|
|
|
|
gst_dvd_spu_advance_spu (dvdspu, new_ts);
|
|
|
|
/* If we have an active SPU command set, we store a copy of the frame in case
|
|
* we hit a still and need to draw on it. Otherwise, a reference is
|
|
* sufficient in case we later encounter a still */
|
|
if ((dvdspu->spu_state.flags & SPU_STATE_FORCED_DSP) ||
|
|
((dvdspu->spu_state.flags & SPU_STATE_FORCED_ONLY) == 0 &&
|
|
(dvdspu->spu_state.flags & SPU_STATE_DISPLAY))) {
|
|
if (using_ref == FALSE) {
|
|
GstBuffer *copy;
|
|
|
|
/* Take a copy in case we hit a still frame and need the pristine
|
|
* frame around */
|
|
copy = gst_buffer_copy (buf);
|
|
gst_buffer_replace (&dvdspu->ref_frame, copy);
|
|
gst_buffer_unref (copy);
|
|
}
|
|
|
|
/* Render the SPU overlay onto the buffer */
|
|
buf = gst_buffer_make_writable (buf);
|
|
|
|
gstspu_render (dvdspu, buf);
|
|
} else {
|
|
if (using_ref == FALSE) {
|
|
/* Not going to draw anything on this frame, just store a reference
|
|
* in case we hit a still frame and need it */
|
|
gst_buffer_replace (&dvdspu->ref_frame, buf);
|
|
}
|
|
}
|
|
|
|
if (dvdspu->spu_state.flags & SPU_STATE_STILL_FRAME) {
|
|
GST_DEBUG_OBJECT (dvdspu, "Outputting buffer with TS %" GST_TIME_FORMAT
|
|
"from chain while in still",
|
|
GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (buf)));
|
|
}
|
|
|
|
DVD_SPU_UNLOCK (dvdspu);
|
|
|
|
/* just push out the incoming buffer without touching it */
|
|
ret = gst_pad_push (dvdspu->srcpad, buf);
|
|
|
|
return ret;
|
|
|
|
no_ref_frame:
|
|
|
|
DVD_SPU_UNLOCK (dvdspu);
|
|
|
|
return GST_FLOW_OK;
|
|
}
|
|
|
|
|
|
static void
|
|
gstspu_render (GstDVDSpu * dvdspu, GstBuffer * buf)
|
|
{
|
|
GstVideoFrame frame;
|
|
|
|
gst_video_frame_map (&frame, &dvdspu->spu_state.info, buf, GST_MAP_READWRITE);
|
|
|
|
switch (dvdspu->spu_input_type) {
|
|
case SPU_INPUT_TYPE_VOBSUB:
|
|
gstspu_vobsub_render (dvdspu, &frame);
|
|
break;
|
|
case SPU_INPUT_TYPE_PGS:
|
|
gstspu_pgs_render (dvdspu, &frame);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
gst_video_frame_unmap (&frame);
|
|
}
|
|
|
|
/* With SPU LOCK */
|
|
static void
|
|
gst_dvd_spu_redraw_still (GstDVDSpu * dvdspu, gboolean force)
|
|
{
|
|
/* If we have an active SPU command set and a reference frame, copy the
|
|
* frame, redraw the SPU and store it as the pending frame for output */
|
|
if (dvdspu->ref_frame) {
|
|
gboolean redraw = (dvdspu->spu_state.flags & SPU_STATE_FORCED_DSP);
|
|
redraw |= (dvdspu->spu_state.flags & SPU_STATE_FORCED_ONLY) == 0 &&
|
|
(dvdspu->spu_state.flags & SPU_STATE_DISPLAY);
|
|
|
|
if (redraw) {
|
|
GstBuffer *buf = gst_buffer_ref (dvdspu->ref_frame);
|
|
|
|
buf = gst_buffer_make_writable (buf);
|
|
|
|
GST_LOG_OBJECT (dvdspu, "Redraw due to Still Frame with ref %p",
|
|
dvdspu->ref_frame);
|
|
GST_BUFFER_FLAG_SET (buf, GST_BUFFER_FLAG_DISCONT);
|
|
GST_BUFFER_TIMESTAMP (buf) = GST_CLOCK_TIME_NONE;
|
|
GST_BUFFER_DURATION (buf) = GST_CLOCK_TIME_NONE;
|
|
|
|
/* Render the SPU overlay onto the buffer */
|
|
gstspu_render (dvdspu, buf);
|
|
gst_buffer_replace (&dvdspu->pending_frame, buf);
|
|
gst_buffer_unref (buf);
|
|
} else if (force) {
|
|
/* Simply output the reference frame */
|
|
GstBuffer *buf = gst_buffer_ref (dvdspu->ref_frame);
|
|
buf = gst_buffer_make_writable (buf);
|
|
GST_BUFFER_FLAG_SET (buf, GST_BUFFER_FLAG_DISCONT);
|
|
GST_BUFFER_TIMESTAMP (buf) = GST_CLOCK_TIME_NONE;
|
|
GST_BUFFER_DURATION (buf) = GST_CLOCK_TIME_NONE;
|
|
|
|
GST_DEBUG_OBJECT (dvdspu, "Pushing reference frame at start of still");
|
|
|
|
gst_buffer_replace (&dvdspu->pending_frame, buf);
|
|
gst_buffer_unref (buf);
|
|
} else {
|
|
GST_LOG_OBJECT (dvdspu, "Redraw due to Still Frame skipped");
|
|
}
|
|
} else {
|
|
GST_LOG_OBJECT (dvdspu, "Not redrawing still frame - no ref frame");
|
|
}
|
|
}
|
|
|
|
static void
|
|
gst_dvd_spu_handle_dvd_event (GstDVDSpu * dvdspu, GstEvent * event)
|
|
{
|
|
gboolean hl_change = FALSE;
|
|
|
|
GST_INFO_OBJECT (dvdspu, "DVD event of type %s on subp pad OOB=%d",
|
|
gst_structure_get_string (gst_event_get_structure (event), "event"),
|
|
(GST_EVENT_TYPE (event) == GST_EVENT_CUSTOM_DOWNSTREAM_OOB));
|
|
|
|
switch (dvdspu->spu_input_type) {
|
|
case SPU_INPUT_TYPE_VOBSUB:
|
|
hl_change = gstspu_vobsub_handle_dvd_event (dvdspu, event);
|
|
break;
|
|
case SPU_INPUT_TYPE_PGS:
|
|
hl_change = gstspu_pgs_handle_dvd_event (dvdspu, event);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
if (hl_change && (dvdspu->spu_state.flags & SPU_STATE_STILL_FRAME)) {
|
|
gst_dvd_spu_redraw_still (dvdspu, FALSE);
|
|
}
|
|
}
|
|
|
|
static gboolean
|
|
gstspu_execute_event (GstDVDSpu * dvdspu)
|
|
{
|
|
switch (dvdspu->spu_input_type) {
|
|
case SPU_INPUT_TYPE_VOBSUB:
|
|
return gstspu_vobsub_execute_event (dvdspu);
|
|
break;
|
|
case SPU_INPUT_TYPE_PGS:
|
|
return gstspu_pgs_execute_event (dvdspu);
|
|
break;
|
|
default:
|
|
g_assert_not_reached ();
|
|
break;
|
|
}
|
|
return FALSE;
|
|
}
|
|
|
|
/* Advance the SPU packet/command queue to a time. new_ts is in running time */
|
|
static void
|
|
gst_dvd_spu_advance_spu (GstDVDSpu * dvdspu, GstClockTime new_ts)
|
|
{
|
|
SpuState *state = &dvdspu->spu_state;
|
|
|
|
if (G_UNLIKELY (dvdspu->spu_input_type == SPU_INPUT_TYPE_NONE))
|
|
return;
|
|
|
|
while (state->next_ts == GST_CLOCK_TIME_NONE || state->next_ts <= new_ts) {
|
|
GST_DEBUG_OBJECT (dvdspu,
|
|
"Advancing SPU from TS %" GST_TIME_FORMAT " to %" GST_TIME_FORMAT,
|
|
GST_TIME_ARGS (state->next_ts), GST_TIME_ARGS (new_ts));
|
|
|
|
if (!gstspu_execute_event (dvdspu)) {
|
|
GstClockTime vid_run_ts;
|
|
|
|
/* No current command buffer, try and get one */
|
|
SpuPacket *packet = (SpuPacket *) g_queue_pop_head (dvdspu->pending_spus);
|
|
|
|
if (packet == NULL)
|
|
return; /* No SPU packets available */
|
|
|
|
vid_run_ts =
|
|
gst_segment_to_running_time (&dvdspu->video_seg, GST_FORMAT_TIME,
|
|
dvdspu->video_seg.position);
|
|
GST_LOG_OBJECT (dvdspu,
|
|
"Popped new SPU packet with TS %" GST_TIME_FORMAT
|
|
". Video position=%" GST_TIME_FORMAT " (%" GST_TIME_FORMAT
|
|
") type %s",
|
|
GST_TIME_ARGS (packet->event_ts), GST_TIME_ARGS (vid_run_ts),
|
|
GST_TIME_ARGS (dvdspu->video_seg.position),
|
|
packet->buf ? "buffer" : "event");
|
|
|
|
if (packet->buf) {
|
|
switch (dvdspu->spu_input_type) {
|
|
case SPU_INPUT_TYPE_VOBSUB:
|
|
gstspu_vobsub_handle_new_buf (dvdspu, packet->event_ts,
|
|
packet->buf);
|
|
break;
|
|
case SPU_INPUT_TYPE_PGS:
|
|
gstspu_pgs_handle_new_buf (dvdspu, packet->event_ts, packet->buf);
|
|
break;
|
|
default:
|
|
g_assert_not_reached ();
|
|
break;
|
|
}
|
|
g_assert (packet->event == NULL);
|
|
} else if (packet->event)
|
|
gst_dvd_spu_handle_dvd_event (dvdspu, packet->event);
|
|
|
|
g_free (packet);
|
|
continue;
|
|
}
|
|
}
|
|
}
|
|
|
|
static void
|
|
gst_dvd_spu_check_still_updates (GstDVDSpu * dvdspu)
|
|
{
|
|
GstClockTime sub_ts;
|
|
GstClockTime vid_ts;
|
|
|
|
if (dvdspu->spu_state.flags & SPU_STATE_STILL_FRAME) {
|
|
|
|
vid_ts = gst_segment_to_running_time (&dvdspu->video_seg,
|
|
GST_FORMAT_TIME, dvdspu->video_seg.position);
|
|
sub_ts = gst_segment_to_running_time (&dvdspu->subp_seg,
|
|
GST_FORMAT_TIME, dvdspu->subp_seg.position);
|
|
|
|
vid_ts = MAX (vid_ts, sub_ts);
|
|
|
|
GST_DEBUG_OBJECT (dvdspu,
|
|
"In still frame - advancing TS to %" GST_TIME_FORMAT
|
|
" to process SPU buffer", GST_TIME_ARGS (vid_ts));
|
|
gst_dvd_spu_advance_spu (dvdspu, vid_ts);
|
|
}
|
|
}
|
|
|
|
static void
|
|
submit_new_spu_packet (GstDVDSpu * dvdspu, GstBuffer * buf)
|
|
{
|
|
SpuPacket *spu_packet;
|
|
GstClockTime ts;
|
|
GstClockTime run_ts = GST_CLOCK_TIME_NONE;
|
|
|
|
GST_DEBUG_OBJECT (dvdspu,
|
|
"Complete subpicture buffer of %" G_GSIZE_FORMAT " bytes with TS %"
|
|
GST_TIME_FORMAT, gst_buffer_get_size (buf),
|
|
GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (buf)));
|
|
|
|
/* Decide whether to pass this buffer through to the rendering code */
|
|
ts = GST_BUFFER_TIMESTAMP (buf);
|
|
if (GST_CLOCK_TIME_IS_VALID (ts)) {
|
|
if (ts < (GstClockTime) dvdspu->subp_seg.start) {
|
|
GstClockTimeDiff diff = dvdspu->subp_seg.start - ts;
|
|
|
|
/* Buffer starts before segment, see if we can calculate a running time */
|
|
run_ts =
|
|
gst_segment_to_running_time (&dvdspu->subp_seg, GST_FORMAT_TIME,
|
|
dvdspu->subp_seg.start);
|
|
if (run_ts >= (GstClockTime) diff)
|
|
run_ts -= diff;
|
|
else
|
|
run_ts = GST_CLOCK_TIME_NONE; /* No running time possible for this subpic */
|
|
} else {
|
|
/* TS within segment, convert to running time */
|
|
run_ts =
|
|
gst_segment_to_running_time (&dvdspu->subp_seg, GST_FORMAT_TIME, ts);
|
|
}
|
|
}
|
|
|
|
if (GST_CLOCK_TIME_IS_VALID (run_ts)) {
|
|
/* Complete SPU packet, push it onto the queue for processing when
|
|
* video packets come past */
|
|
spu_packet = g_new0 (SpuPacket, 1);
|
|
spu_packet->buf = buf;
|
|
|
|
/* Store the activation time of this buffer in running time */
|
|
spu_packet->event_ts = run_ts;
|
|
GST_INFO_OBJECT (dvdspu,
|
|
"Pushing SPU buf with TS %" GST_TIME_FORMAT " running time %"
|
|
GST_TIME_FORMAT, GST_TIME_ARGS (ts),
|
|
GST_TIME_ARGS (spu_packet->event_ts));
|
|
|
|
g_queue_push_tail (dvdspu->pending_spus, spu_packet);
|
|
|
|
/* In a still frame condition, advance the SPU to make sure the state is
|
|
* up to date */
|
|
gst_dvd_spu_check_still_updates (dvdspu);
|
|
} else {
|
|
gst_buffer_unref (buf);
|
|
}
|
|
}
|
|
|
|
static GstFlowReturn
|
|
gst_dvd_spu_subpic_chain (GstPad * pad, GstObject * parent, GstBuffer * buf)
|
|
{
|
|
GstDVDSpu *dvdspu = (GstDVDSpu *) parent;
|
|
GstFlowReturn ret = GST_FLOW_OK;
|
|
gsize size;
|
|
|
|
g_return_val_if_fail (dvdspu != NULL, GST_FLOW_ERROR);
|
|
|
|
GST_INFO_OBJECT (dvdspu, "Have subpicture buffer with timestamp %"
|
|
GST_TIME_FORMAT " and size %" G_GSIZE_FORMAT,
|
|
GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (buf)), gst_buffer_get_size (buf));
|
|
|
|
DVD_SPU_LOCK (dvdspu);
|
|
|
|
if (GST_BUFFER_TIMESTAMP_IS_VALID (buf)) {
|
|
dvdspu->subp_seg.position = GST_BUFFER_TIMESTAMP (buf);
|
|
}
|
|
|
|
if (GST_BUFFER_IS_DISCONT (buf) && dvdspu->partial_spu) {
|
|
gst_buffer_unref (dvdspu->partial_spu);
|
|
dvdspu->partial_spu = NULL;
|
|
}
|
|
|
|
if (dvdspu->partial_spu != NULL) {
|
|
if (GST_BUFFER_TIMESTAMP_IS_VALID (buf))
|
|
GST_WARNING_OBJECT (dvdspu,
|
|
"Joining subpicture buffer with timestamp to previous");
|
|
dvdspu->partial_spu = gst_buffer_append (dvdspu->partial_spu, buf);
|
|
} else {
|
|
/* If we don't yet have a buffer, wait for one with a timestamp,
|
|
* since that will avoid collecting the 2nd half of a partial buf */
|
|
if (GST_BUFFER_TIMESTAMP_IS_VALID (buf))
|
|
dvdspu->partial_spu = buf;
|
|
else
|
|
gst_buffer_unref (buf);
|
|
}
|
|
|
|
if (dvdspu->partial_spu == NULL)
|
|
goto done;
|
|
|
|
size = gst_buffer_get_size (dvdspu->partial_spu);
|
|
|
|
switch (dvdspu->spu_input_type) {
|
|
case SPU_INPUT_TYPE_VOBSUB:
|
|
if (size > 4) {
|
|
guint8 *header[2];
|
|
guint16 packet_size;
|
|
|
|
gst_buffer_extract (dvdspu->partial_spu, 0, header, 2);
|
|
packet_size = GST_READ_UINT16_BE (header);
|
|
if (packet_size == size) {
|
|
submit_new_spu_packet (dvdspu, dvdspu->partial_spu);
|
|
dvdspu->partial_spu = NULL;
|
|
} else if (packet_size < size) {
|
|
/* Somehow we collected too much - something is wrong. Drop the
|
|
* packet entirely and wait for a new one */
|
|
GST_DEBUG_OBJECT (dvdspu,
|
|
"Discarding invalid SPU buffer of size %" G_GSIZE_FORMAT, size);
|
|
|
|
gst_buffer_unref (dvdspu->partial_spu);
|
|
dvdspu->partial_spu = NULL;
|
|
} else {
|
|
GST_LOG_OBJECT (dvdspu,
|
|
"SPU buffer claims to be of size %u. Collected %" G_GSIZE_FORMAT
|
|
" so far.", packet_size, size);
|
|
}
|
|
}
|
|
break;
|
|
case SPU_INPUT_TYPE_PGS:{
|
|
/* Collect until we have a command buffer that ends exactly at the size
|
|
* we've collected */
|
|
guint8 packet_type;
|
|
guint16 packet_size;
|
|
GstMapInfo map;
|
|
guint8 *ptr, *end;
|
|
gboolean invalid = FALSE;
|
|
|
|
gst_buffer_map (dvdspu->partial_spu, &map, GST_MAP_READ);
|
|
|
|
ptr = map.data;
|
|
end = ptr + map.size;
|
|
|
|
/* FIXME: There's no need to walk the command set each time. We can set a
|
|
* marker and resume where we left off next time */
|
|
/* FIXME: Move the packet parsing and sanity checking into the format-specific modules */
|
|
while (ptr != end) {
|
|
if (ptr + 3 > end)
|
|
break;
|
|
packet_type = *ptr++;
|
|
packet_size = GST_READ_UINT16_BE (ptr);
|
|
ptr += 2;
|
|
if (ptr + packet_size > end)
|
|
break;
|
|
ptr += packet_size;
|
|
/* 0x80 is the END command for PGS packets */
|
|
if (packet_type == 0x80 && ptr != end) {
|
|
/* Extra cruft on the end of the packet -> assume invalid */
|
|
invalid = TRUE;
|
|
break;
|
|
}
|
|
}
|
|
gst_buffer_unmap (dvdspu->partial_spu, &map);
|
|
|
|
if (invalid) {
|
|
gst_buffer_unref (dvdspu->partial_spu);
|
|
dvdspu->partial_spu = NULL;
|
|
} else if (ptr == end) {
|
|
GST_DEBUG_OBJECT (dvdspu,
|
|
"Have complete PGS packet of size %" G_GSIZE_FORMAT ". Enqueueing.",
|
|
map.size);
|
|
submit_new_spu_packet (dvdspu, dvdspu->partial_spu);
|
|
dvdspu->partial_spu = NULL;
|
|
}
|
|
break;
|
|
}
|
|
default:
|
|
GST_ERROR_OBJECT (dvdspu, "Input type not configured before SPU passing");
|
|
goto caps_not_set;
|
|
}
|
|
|
|
done:
|
|
DVD_SPU_UNLOCK (dvdspu);
|
|
|
|
return ret;
|
|
|
|
/* ERRORS */
|
|
caps_not_set:
|
|
{
|
|
GST_ELEMENT_ERROR (dvdspu, RESOURCE, NO_SPACE_LEFT,
|
|
(_("Subpicture format was not configured before data flow")), (NULL));
|
|
ret = GST_FLOW_ERROR;
|
|
goto done;
|
|
}
|
|
}
|
|
|
|
static gboolean
|
|
gst_dvd_spu_subpic_event (GstPad * pad, GstObject * parent, GstEvent * event)
|
|
{
|
|
GstDVDSpu *dvdspu = (GstDVDSpu *) parent;
|
|
gboolean res = TRUE;
|
|
|
|
/* Some events on the subpicture sink pad just get ignored, like
|
|
* FLUSH_START */
|
|
switch (GST_EVENT_TYPE (event)) {
|
|
case GST_EVENT_CAPS:
|
|
{
|
|
GstCaps *caps;
|
|
|
|
gst_event_parse_caps (event, &caps);
|
|
res = gst_dvd_spu_subpic_set_caps (pad, caps);
|
|
gst_event_unref (event);
|
|
break;
|
|
}
|
|
case GST_EVENT_CUSTOM_DOWNSTREAM:
|
|
case GST_EVENT_CUSTOM_DOWNSTREAM_OOB:
|
|
{
|
|
const GstStructure *structure = gst_event_get_structure (event);
|
|
gboolean need_push;
|
|
|
|
if (!gst_structure_has_name (structure, "application/x-gst-dvd")) {
|
|
res = gst_pad_event_default (pad, parent, event);
|
|
break;
|
|
}
|
|
|
|
DVD_SPU_LOCK (dvdspu);
|
|
if (GST_EVENT_IS_SERIALIZED (event)) {
|
|
SpuPacket *spu_packet = g_new0 (SpuPacket, 1);
|
|
GST_DEBUG_OBJECT (dvdspu,
|
|
"Enqueueing DVD event on subpicture pad for later");
|
|
spu_packet->event = event;
|
|
g_queue_push_tail (dvdspu->pending_spus, spu_packet);
|
|
} else {
|
|
gst_dvd_spu_handle_dvd_event (dvdspu, event);
|
|
}
|
|
|
|
/* If the handle_dvd_event generated a pending frame, we
|
|
* need to synchronise with the video pad's stream lock and push it.
|
|
* This requires some dancing to preserve locking order and handle
|
|
* flushes correctly */
|
|
need_push = (dvdspu->pending_frame != NULL);
|
|
DVD_SPU_UNLOCK (dvdspu);
|
|
if (need_push) {
|
|
GstBuffer *to_push = NULL;
|
|
gboolean flushing;
|
|
|
|
GST_LOG_OBJECT (dvdspu, "Going for stream lock");
|
|
GST_PAD_STREAM_LOCK (dvdspu->videosinkpad);
|
|
GST_LOG_OBJECT (dvdspu, "Got stream lock");
|
|
GST_OBJECT_LOCK (dvdspu->videosinkpad);
|
|
flushing = GST_PAD_IS_FLUSHING (dvdspu->videosinkpad);
|
|
GST_OBJECT_UNLOCK (dvdspu->videosinkpad);
|
|
|
|
DVD_SPU_LOCK (dvdspu);
|
|
if (dvdspu->pending_frame == NULL || flushing) {
|
|
/* Got flushed while waiting for the stream lock */
|
|
DVD_SPU_UNLOCK (dvdspu);
|
|
} else {
|
|
to_push = dvdspu->pending_frame;
|
|
dvdspu->pending_frame = NULL;
|
|
|
|
DVD_SPU_UNLOCK (dvdspu);
|
|
gst_pad_push (dvdspu->srcpad, to_push);
|
|
}
|
|
GST_LOG_OBJECT (dvdspu, "Dropping stream lock");
|
|
GST_PAD_STREAM_UNLOCK (dvdspu->videosinkpad);
|
|
}
|
|
|
|
break;
|
|
}
|
|
case GST_EVENT_SEGMENT:
|
|
{
|
|
GstSegment seg;
|
|
|
|
gst_event_copy_segment (event, &seg);
|
|
|
|
/* Only print updates if they have an end time (don't print start_time
|
|
* updates */
|
|
GST_DEBUG_OBJECT (dvdspu, "subpic pad Segment: %" GST_SEGMENT_FORMAT,
|
|
&seg);
|
|
|
|
DVD_SPU_LOCK (dvdspu);
|
|
|
|
dvdspu->subp_seg = seg;
|
|
GST_LOG_OBJECT (dvdspu, "Subpicture segment now: %" GST_SEGMENT_FORMAT,
|
|
&dvdspu->subp_seg);
|
|
DVD_SPU_UNLOCK (dvdspu);
|
|
|
|
gst_event_unref (event);
|
|
break;
|
|
}
|
|
case GST_EVENT_FLUSH_START:
|
|
gst_event_unref (event);
|
|
goto done;
|
|
case GST_EVENT_FLUSH_STOP:
|
|
GST_DEBUG_OBJECT (dvdspu, "Have flush-stop event on SPU pad");
|
|
DVD_SPU_LOCK (dvdspu);
|
|
gst_segment_init (&dvdspu->subp_seg, GST_FORMAT_UNDEFINED);
|
|
gst_dvd_spu_flush_spu_info (dvdspu, TRUE);
|
|
DVD_SPU_UNLOCK (dvdspu);
|
|
|
|
/* We don't forward flushes on the spu pad */
|
|
gst_event_unref (event);
|
|
goto done;
|
|
case GST_EVENT_EOS:
|
|
/* drop EOS on the subtitle pad, it means there are no more subtitles,
|
|
* video might still continue, though */
|
|
gst_event_unref (event);
|
|
goto done;
|
|
break;
|
|
default:
|
|
res = gst_pad_event_default (pad, parent, event);
|
|
break;
|
|
}
|
|
|
|
done:
|
|
|
|
return res;
|
|
}
|
|
|
|
static gboolean
|
|
gst_dvd_spu_subpic_set_caps (GstPad * pad, GstCaps * caps)
|
|
{
|
|
GstDVDSpu *dvdspu = GST_DVD_SPU (gst_pad_get_parent (pad));
|
|
gboolean res = FALSE;
|
|
GstStructure *s;
|
|
SpuInputType input_type;
|
|
|
|
s = gst_caps_get_structure (caps, 0);
|
|
|
|
if (gst_structure_has_name (s, "video/x-dvd-subpicture")) {
|
|
input_type = SPU_INPUT_TYPE_VOBSUB;
|
|
} else if (gst_structure_has_name (s, "subpicture/x-pgs")) {
|
|
input_type = SPU_INPUT_TYPE_PGS;
|
|
} else {
|
|
goto done;
|
|
}
|
|
|
|
DVD_SPU_LOCK (dvdspu);
|
|
if (dvdspu->spu_input_type != input_type) {
|
|
GST_INFO_OBJECT (dvdspu, "Incoming SPU packet type changed to %u",
|
|
input_type);
|
|
dvdspu->spu_input_type = input_type;
|
|
gst_dvd_spu_flush_spu_info (dvdspu, TRUE);
|
|
}
|
|
|
|
DVD_SPU_UNLOCK (dvdspu);
|
|
res = TRUE;
|
|
done:
|
|
gst_object_unref (dvdspu);
|
|
return res;
|
|
}
|
|
|
|
static GstStateChangeReturn
|
|
gst_dvd_spu_change_state (GstElement * element, GstStateChange transition)
|
|
{
|
|
GstDVDSpu *dvdspu = (GstDVDSpu *) element;
|
|
GstStateChangeReturn ret;
|
|
|
|
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
|
|
|
|
switch (transition) {
|
|
case GST_STATE_CHANGE_PAUSED_TO_READY:
|
|
DVD_SPU_LOCK (dvdspu);
|
|
gst_dvd_spu_clear (dvdspu);
|
|
DVD_SPU_UNLOCK (dvdspu);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static gboolean
|
|
gst_dvd_spu_plugin_init (GstPlugin * plugin)
|
|
{
|
|
GST_DEBUG_CATEGORY_INIT (dvdspu_debug, "gstspu",
|
|
0, "Sub-picture Overlay decoder/renderer");
|
|
|
|
return gst_element_register (plugin, "dvdspu",
|
|
GST_RANK_PRIMARY, GST_TYPE_DVD_SPU);
|
|
}
|
|
|
|
GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
|
|
GST_VERSION_MINOR,
|
|
dvdspu,
|
|
"DVD Sub-picture Overlay element",
|
|
gst_dvd_spu_plugin_init,
|
|
VERSION, GST_LICENSE, GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN)
|