2002-03-29 00:23:16 +00:00
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/* GStreamer DXR3 Hardware MPEG video decoder plugin
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* Copyright (C) <2002> Rehan Khwaja <rehankhwaja@yahoo.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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#include <string.h>
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#include <fcntl.h>
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#include "gstdxr3videosink.h"
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#include <sys/ioctl.h>
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#include <linux/em8300.h>
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enum {
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ARG_0,
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ARG_TV_MODE,
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ARG_DEVICE,
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ARG_ASPECT_RATIO
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/* TODO -
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* DIGITAL/ANALOG AUDIO OUT
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* OVERLAY MODE
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* SET BCS?? what's that?
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* OVERLAY ATTRIBUTES - where on the screen to put image
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* OVERLAY WINDOW - as above
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* OVERLAY KEYCOLOR
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* OVERLAY SIGNAL MODE
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* PLAYMODE - pausing, playing, slow forward etc
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*/
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};
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static void gst_dxr3_video_sink_class_init (GstDxr3VideoSinkClass *klass);
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static void gst_dxr3_video_sink_init (GstDxr3VideoSink *example);
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static void gst_dxr3_video_sink_chain (GstPad *pad, GstBuffer *buf);
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static void gst_dxr3_video_sink_set_property (GObject *object, guint prop_id,
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const GValue *value, GParamSpec *pspec);
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static void gst_dxr3_video_sink_get_property (GObject *object, guint prop_id,
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GValue *value, GParamSpec *pspec);
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static gboolean gst_dxr3_video_sink_handle_event (GstPad *pad, GstEvent *event);
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static void gst_dxr3_video_sink_set_clock (GstElement *element, GstClock *clock);
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static GstElementClass *parent_class = NULL;
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#define GST_TYPE_DXR3_VIDEO_SINK_ASPECT_RATIOS (gst_dxr3_video_sink_aspect_ratios_get_type())
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static GType
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gst_dxr3_video_sink_aspect_ratios_get_type(void) {
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static GType dxr3_video_sink_aspect_ratio_type = 0;
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static GEnumValue dxr3_video_sink_aspect_ratios[] = {
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{0, "0", "4:3"},
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{1, "1", "16:9"},
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{0, NULL, NULL},
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};
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if (!dxr3_video_sink_aspect_ratio_type) {
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dxr3_video_sink_aspect_ratio_type = g_enum_register_static("GstDxr3VideoSinkAspectRatios", dxr3_video_sink_aspect_ratios);
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}
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return dxr3_video_sink_aspect_ratio_type;
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}
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#define GST_TYPE_DXR3_VIDEO_SINK_TV_MODES (gst_dxr3_video_sink_tv_modes_get_type())
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static GType
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gst_dxr3_video_sink_tv_modes_get_type(void) {
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static GType dxr3_video_sink_tv_mode_type = 0;
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static GEnumValue dxr3_video_sink_tv_modes[] = {
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{0, "0", "NTSC"},
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{1, "1", "PAL"},
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{0, NULL, NULL},
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};
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if (!dxr3_video_sink_tv_mode_type) {
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dxr3_video_sink_tv_mode_type = g_enum_register_static("GstDxr3VideoSinkTvModes", dxr3_video_sink_tv_modes);
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}
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return dxr3_video_sink_tv_mode_type;
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}
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static void
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gst_dxr3_video_sink_set_clock(GstElement *element, GstClock *clock)
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{
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GstDxr3VideoSink *dxr3_video_sink;
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dxr3_video_sink = GST_DXR3_VIDEO_SINK(element);
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dxr3_video_sink->clock = clock;
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}
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GType
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gst_dxr3_video_sink_get_type(void)
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{
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static GType dxr3_video_sink_type = 0;
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if (!dxr3_video_sink_type) {
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static const GTypeInfo dxr3_video_sink_info = {
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sizeof(GstDxr3VideoSinkClass), NULL,
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NULL,
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(GClassInitFunc)gst_dxr3_video_sink_class_init,
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NULL,
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NULL,
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sizeof(GstDxr3VideoSink),
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0,
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(GInstanceInitFunc)gst_dxr3_video_sink_init,
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};
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dxr3_video_sink_type = g_type_register_static(GST_TYPE_ELEMENT, "GstDxr3VideoSink", &dxr3_video_sink_info, 0);
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}
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return dxr3_video_sink_type;
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}
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static gchar *
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gst_dxr3_video_sink_get_control_device(GstDxr3VideoSink *dxr3_video_sink)
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{
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return g_strdup_printf("/dev/em8300-%d", dxr3_video_sink->device_number);
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}
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static gchar *
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gst_dxr3_video_sink_get_video_device(GstDxr3VideoSink *dxr3_video_sink)
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{
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return g_strdup_printf("/dev/em8300_mv-%d", dxr3_video_sink->device_number);
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}
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static void
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gst_dxr3_video_sink_class_init (GstDxr3VideoSinkClass *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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parent_class = g_type_class_ref(GST_TYPE_ELEMENT);
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g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_TV_MODE,
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g_param_spec_enum("tv-mode","tv-mode","sets NTSC/PAL output format",
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GST_TYPE_DXR3_VIDEO_SINK_TV_MODES, 0, G_PARAM_READWRITE));
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g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_DEVICE,
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g_param_spec_int("device","device","sets/returns board number",
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0,3,0,G_PARAM_READWRITE));
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g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_ASPECT_RATIO,
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g_param_spec_enum("aspect-ratio", "aspect-ratio", "sets/returns aspect ratio",
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GST_TYPE_DXR3_VIDEO_SINK_ASPECT_RATIOS, 0, G_PARAM_READWRITE));
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gobject_class->set_property = gst_dxr3_video_sink_set_property;
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gobject_class->get_property = gst_dxr3_video_sink_get_property;
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}
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static void
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gst_dxr3_video_sink_open_device(GstDxr3VideoSink *dxr3_video_sink)
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{
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gchar *video_device_path;
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video_device_path = gst_dxr3_video_sink_get_video_device(dxr3_video_sink);
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if (dxr3_video_sink->device){
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fclose(dxr3_video_sink->device);
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}
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/* this is what disksink uses */
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dxr3_video_sink->device = fopen(video_device_path, "w");
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g_free(video_device_path);
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}
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static void
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gst_dxr3_video_sink_init(GstDxr3VideoSink *dxr3_video_sink)
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{
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dxr3_video_sink->sinkpad = gst_pad_new_from_template (
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2002-04-11 20:42:26 +00:00
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GST_PAD_TEMPLATE_GET (dxr3_video_sink_factory), "video_sink");
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2002-03-29 00:23:16 +00:00
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gst_pad_set_chain_function(dxr3_video_sink->sinkpad, gst_dxr3_video_sink_chain);
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gst_element_add_pad(GST_ELEMENT(dxr3_video_sink),dxr3_video_sink->sinkpad);
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dxr3_video_sink->device_number = 0;
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dxr3_video_sink->device = 0;
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/* FIXME - should only have device open when necessary
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* which probably requires handling events?
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* also, when is this device closed?
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*/
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gst_dxr3_video_sink_open_device(dxr3_video_sink);
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GST_FLAG_SET (GST_ELEMENT(dxr3_video_sink), GST_ELEMENT_EVENT_AWARE);
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gst_pad_set_event_function(dxr3_video_sink->sinkpad, gst_dxr3_video_sink_handle_event);
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dxr3_video_sink->clock = NULL;
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GST_ELEMENT(dxr3_video_sink)->setclockfunc = gst_dxr3_video_sink_set_clock;
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}
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static gboolean
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gst_dxr3_video_sink_handle_event(GstPad *pad, GstEvent *event)
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{
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GstEventType type;
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type = event ? GST_EVENT_TYPE (event) : GST_EVENT_UNKNOWN;
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switch (type) {
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case GST_EVENT_SEEK:
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g_print("seek event\n\n");
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break;
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case GST_EVENT_NEW_MEDIA:
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g_print("new media event\n\n");
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break;
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case GST_EVENT_FLUSH:
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g_print("flush event\n\n");
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break;
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default:
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g_print("event\n\n");
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gst_pad_event_default (pad, event);
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break;
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}
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return TRUE;
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}
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static void
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gst_dxr3_video_sink_chain (GstPad *pad, GstBuffer *buf)
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{
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GstDxr3VideoSink *dxr3_video_sink;
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long pts;
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/* Some of these checks are of dubious value, since if there were not
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* already true, the chain function would never be called.
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*/
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g_return_if_fail(pad != NULL);
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g_return_if_fail(GST_IS_PAD(pad));
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g_return_if_fail(buf != NULL);
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dxr3_video_sink = GST_DXR3_VIDEO_SINK(gst_pad_get_parent (pad));
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g_return_if_fail(dxr3_video_sink != NULL);
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g_return_if_fail(GST_IS_DXR3_VIDEO_SINK(dxr3_video_sink));
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/* Copy the data in the incoming buffer onto the device. */
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fwrite(GST_BUFFER_DATA (buf), 1, GST_BUFFER_SIZE (buf), dxr3_video_sink->device);
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pts = (long)GST_BUFFER_TIMESTAMP(buf);
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if (-1 == ioctl((int)dxr3_video_sink->device, EM8300_IOCTL_VIDEO_SETPTS, &pts)){
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GST_DEBUG(0, "FAILED call to EM8300_IOCTL_VIDEO_SETPTS\n");
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}
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gst_buffer_unref (buf);
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}
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static void
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gst_dxr3_video_sink_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec)
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{
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GstDxr3VideoSink *dxr3_video_sink;
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int device;
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gchar *device_path;
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int tv_mode_ioctl, aspect_ratio_ioctl;
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g_return_if_fail(GST_IS_DXR3_VIDEO_SINK(object));
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dxr3_video_sink = GST_DXR3_VIDEO_SINK(object);
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switch (prop_id) {
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case ARG_TV_MODE:
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device_path = gst_dxr3_video_sink_get_control_device(dxr3_video_sink);
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device = open(device_path, O_WRONLY);
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if (device == -1){
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GST_DEBUG(0, "failed to open control device\n");
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break;
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}
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switch(g_value_get_int(value)){
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case 0:
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tv_mode_ioctl = EM8300_VIDEOMODE_NTSC;
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break;
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case 1:
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tv_mode_ioctl = EM8300_VIDEOMODE_PAL;
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break;
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case 2:
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tv_mode_ioctl = EM8300_VIDEOMODE_PAL60;
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break;
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}
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if (-1 == ioctl(device, EM8300_IOCTL_SET_VIDEOMODE, &tv_mode_ioctl)){
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GST_DEBUG (0,"failed to set tv-mode\n");
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}
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close(device);
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break;
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case ARG_DEVICE:
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dxr3_video_sink->device_number = g_value_get_int(value);
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gst_dxr3_video_sink_open_device(dxr3_video_sink);
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break;
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case ARG_ASPECT_RATIO:
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device_path = gst_dxr3_video_sink_get_control_device(dxr3_video_sink);
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device = open(device_path, O_WRONLY);
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if (device == -1){
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GST_DEBUG(0, "failed to open control device\n");
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break;
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}
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switch(g_value_get_enum(value)){
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case 0:
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aspect_ratio_ioctl = EM8300_ASPECTRATIO_4_3;
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break;
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case 1:
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aspect_ratio_ioctl = EM8300_ASPECTRATIO_16_9;
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break;
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}
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if (-1 == ioctl(device, EM8300_IOCTL_SET_ASPECTRATIO, &aspect_ratio_ioctl)){
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GST_DEBUG(0, "failed to set aspect-ratio\n");
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}
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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 void
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gst_dxr3_video_sink_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec)
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{
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GstDxr3VideoSink *dxr3_video_sink;
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gint device;
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gchar *device_path;
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int tv_mode_ioctl, aspect_ratio_ioctl;
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g_return_if_fail(GST_IS_DXR3_VIDEO_SINK(object));
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dxr3_video_sink = GST_DXR3_VIDEO_SINK(object);
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switch (prop_id) {
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|
case ARG_TV_MODE:
|
|
|
|
device_path = gst_dxr3_video_sink_get_control_device(dxr3_video_sink);
|
|
|
|
tv_mode_ioctl = 0;
|
|
|
|
device = open(device_path, O_WRONLY);
|
|
|
|
if (-1 == device){
|
|
|
|
GST_DEBUG(0, "failed to open control device\n");
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
if (-1 == ioctl(device, EM8300_IOCTL_GET_VIDEOMODE, &tv_mode_ioctl)){
|
|
|
|
GST_DEBUG(0, "failed to get tv-mode\n");
|
|
|
|
}
|
|
|
|
close(device);
|
|
|
|
|
|
|
|
switch(tv_mode_ioctl){
|
|
|
|
case EM8300_VIDEOMODE_NTSC:
|
|
|
|
g_value_set_enum(value, 0);
|
|
|
|
break;
|
|
|
|
case EM8300_VIDEOMODE_PAL:
|
|
|
|
g_value_set_enum(value, 1);
|
|
|
|
break;
|
|
|
|
case EM8300_VIDEOMODE_PAL60:
|
|
|
|
g_value_set_enum(value, 2);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
case ARG_DEVICE:
|
|
|
|
g_value_set_int(value, dxr3_video_sink->device_number);
|
|
|
|
break;
|
|
|
|
case ARG_ASPECT_RATIO:
|
|
|
|
device_path = gst_dxr3_video_sink_get_control_device(dxr3_video_sink);
|
|
|
|
aspect_ratio_ioctl = 0;
|
|
|
|
device = open(device_path, O_WRONLY);
|
|
|
|
if (-1 == device){
|
|
|
|
GST_DEBUG(0, "failed to open control device\n");
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
if (-1 == ioctl(device, EM8300_IOCTL_GET_ASPECTRATIO, &aspect_ratio_ioctl)){
|
|
|
|
GST_DEBUG(0, "failed to get aspect ratio\n");
|
|
|
|
}
|
|
|
|
close(device);
|
|
|
|
|
|
|
|
switch(aspect_ratio_ioctl){
|
|
|
|
case EM8300_ASPECTRATIO_4_3:
|
|
|
|
g_value_set_enum(value, 0);
|
|
|
|
break;
|
|
|
|
case EM8300_ASPECTRATIO_16_9:
|
|
|
|
g_value_set_enum(value, 1);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|