/* GStreamer * Copyright (C) <1999> Erik Walthinsen * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Library General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Library General Public License for more details. * * You should have received a copy of the GNU Library General Public * License along with this library; if not, write to the * Free Software Foundation, Inc., 59 Temple Place - Suite 330, * Boston, MA 02111-1307, USA. */ #ifdef HAVE_CONFIG_H #include "config.h" #endif #include #include #include #include #include #include /*#define DEBUG_ENABLED */ #include #include #include "qcamip.h" /* elementfactory information */ static GstElementDetails gst_qcamsrc_details = GST_ELEMENT_DETAILS ( "QCam Source", "Source/Video", "Read from a QuickCam device", "Wim Taymans " ); #define AE_NONE 3 #define DEF_WIDTH 320 #define DEF_HEIGHT 224 #define DEF_BRIGHTNESS 226 #define DEF_WHITEBAL 128 #define DEF_CONTRAST 72 #define DEF_TOP 1 #define DEF_LEFT 14 #define DEF_TRANSFER_SCALE 2 #define DEF_DEPTH 6 #define DEF_PORT 0x378 #define DEF_AUTOEXP AE_NONE GST_PAD_TEMPLATE_FACTORY (gst_qcamsrc_src_factory, "src", GST_PAD_SRC, GST_PAD_ALWAYS, gst_caps_new ( "gstqcam_src", "video/x-raw-yuv", GST_VIDEO_YUV_PAD_TEMPLATE_PROPS ( GST_PROPS_FOURCC (GST_STR_FOURCC ("I420"))) ) ) #define GST_TYPE_AUTOEXP_MODE (gst_autoexp_mode_get_type()) static GType gst_autoexp_mode_get_type (void) { static GType autoexp_mode_type = 0; static GEnumValue autoexp_modes[] = { { AE_ALL_AVG, "0", "Average Picture" }, { AE_CTR_AVG, "1", "Average Center" }, { AE_STD_AVG, "2", "Standard Deviation" }, { AE_NONE, "3", "None" }, { 0, NULL, NULL }, }; if (!autoexp_mode_type) { autoexp_mode_type = g_enum_register_static ("GstAutoExposureMode", autoexp_modes); } return autoexp_mode_type; } /* QCamSrc signals and args */ enum { /* FILL ME */ LAST_SIGNAL }; enum { ARG_0, ARG_WIDTH, ARG_HEIGHT, ARG_BRIGHTNESS, ARG_WHITEBAL, ARG_CONTRAST, ARG_TOP, ARG_LEFT, ARG_TRANSFER_SCALE, ARG_DEPTH, ARG_PORT, ARG_AUTOEXP, }; static void gst_qcamsrc_base_init (gpointer g_class); static void gst_qcamsrc_class_init (GstQCamSrcClass *klass); static void gst_qcamsrc_init (GstQCamSrc *qcamsrc); static void gst_qcamsrc_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec); static void gst_qcamsrc_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec); static GstElementStateReturn gst_qcamsrc_change_state (GstElement *element); static void gst_qcamsrc_close (GstQCamSrc *src); static gboolean gst_qcamsrc_open (GstQCamSrc *src); static GstData* gst_qcamsrc_get (GstPad *pad); static GstElementClass *parent_class = NULL; /*//static guint gst_qcamsrc_signals[LAST_SIGNAL] = { 0 }; */ GType gst_qcamsrc_get_type (void) { static GType qcamsrc_type = 0; if (!qcamsrc_type) { static const GTypeInfo qcamsrc_info = { sizeof(GstQCamSrcClass), gst_qcamsrc_base_init, NULL, (GClassInitFunc)gst_qcamsrc_class_init, NULL, NULL, sizeof(GstQCamSrc), 0, (GInstanceInitFunc)gst_qcamsrc_init, NULL }; qcamsrc_type = g_type_register_static(GST_TYPE_ELEMENT, "GstQCamSrc", &qcamsrc_info, 0); } return qcamsrc_type; } static void gst_qcamsrc_base_init (gpointer g_class) { GstElementClass *element_class = GST_ELEMENT_CLASS (g_class); gst_element_class_add_pad_template (element_class, GST_PAD_TEMPLATE_GET (gst_qcamsrc_src_factory)); gst_element_class_set_details (element_class, &gst_qcamsrc_details); } static void gst_qcamsrc_class_init (GstQCamSrcClass *klass) { GObjectClass *gobject_class; GstElementClass *gstelement_class; gobject_class = (GObjectClass*)klass; gstelement_class = (GstElementClass*)klass; parent_class = g_type_class_ref(GST_TYPE_ELEMENT); g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_WIDTH, g_param_spec_int ("width", "width", "width", 0, 320, DEF_WIDTH, G_PARAM_READWRITE)); g_object_class_install_property (G_OBJECT_CLASS(klass), ARG_HEIGHT, g_param_spec_int ("height", "height", "height", 0, 240, DEF_HEIGHT, G_PARAM_READWRITE)); g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_BRIGHTNESS, g_param_spec_int ("brightness", "brightness", "brightness", 0, 255, DEF_BRIGHTNESS, G_PARAM_READWRITE)); g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_WHITEBAL, g_param_spec_int ("whitebal", "whitebal", "whitebal", 0, 255, DEF_WHITEBAL, G_PARAM_READWRITE)); g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_CONTRAST, g_param_spec_int ("contrast", "contrast", "contrast", 0, 255, DEF_CONTRAST, G_PARAM_READWRITE)); g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_TOP, g_param_spec_int ("top", "top", "top", 0, 240, DEF_TOP, G_PARAM_READWRITE)); g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_LEFT, g_param_spec_int ("left", "left", "left", 0, 320, DEF_LEFT, G_PARAM_READWRITE)); g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_TRANSFER_SCALE, g_param_spec_int ("transfer_scale", "transfer_scale", "transfer_scale", 1, 4, DEF_TRANSFER_SCALE, G_PARAM_READWRITE)); g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_DEPTH, g_param_spec_int ("depth", "depth", "depth", 4, 6, DEF_DEPTH, G_PARAM_READWRITE)); g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_PORT, g_param_spec_int ("port","port","port", 0, G_MAXINT, DEF_PORT, G_PARAM_READWRITE)); g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_AUTOEXP, g_param_spec_enum ("autoexposure", "autoexposure", "autoexposure", GST_TYPE_AUTOEXP_MODE, DEF_AUTOEXP, G_PARAM_READWRITE)); gobject_class->set_property = gst_qcamsrc_set_property; gobject_class->get_property = gst_qcamsrc_get_property; gstelement_class->change_state = gst_qcamsrc_change_state; } static void gst_qcamsrc_init (GstQCamSrc *qcamsrc) { qcamsrc->srcpad = gst_pad_new_from_template ( GST_PAD_TEMPLATE_GET (gst_qcamsrc_src_factory), "src"); gst_element_add_pad(GST_ELEMENT(qcamsrc),qcamsrc->srcpad); gst_pad_set_get_function (qcamsrc->srcpad,gst_qcamsrc_get); /* if the destination cannot say what it wants, we give this */ qcamsrc->qcam = qc_init(); qcamsrc->qcam->port = DEF_PORT; qc_setwidth (qcamsrc->qcam, DEF_WIDTH); qc_setheight (qcamsrc->qcam, DEF_HEIGHT); qc_setbrightness (qcamsrc->qcam, DEF_BRIGHTNESS); qc_setwhitebal (qcamsrc->qcam, DEF_WHITEBAL); qc_setcontrast (qcamsrc->qcam, DEF_CONTRAST); qc_settop (qcamsrc->qcam, DEF_TOP); qc_setleft (qcamsrc->qcam, DEF_LEFT); qc_settransfer_scale (qcamsrc->qcam, DEF_TRANSFER_SCALE); qc_setbitdepth (qcamsrc->qcam, DEF_DEPTH); qcamsrc->autoexposure = DEF_AUTOEXP; if (qcamsrc->autoexposure != AE_NONE) qcip_set_autoexposure_mode (qcamsrc->autoexposure); } static GstData* gst_qcamsrc_get (GstPad *pad) { GstQCamSrc *qcamsrc; GstBuffer *buf; scanbuf *scan; guchar *outdata; gint i, frame, scale, convert; g_return_val_if_fail (pad != NULL, NULL); qcamsrc = GST_QCAMSRC (gst_pad_get_parent (pad)); scale = qc_gettransfer_scale (qcamsrc->qcam); frame = qcamsrc->qcam->width * qcamsrc->qcam->height / (scale * scale); buf = gst_buffer_new(); outdata = GST_BUFFER_DATA(buf) = g_malloc0((frame * 3) / 2); GST_BUFFER_SIZE(buf) = (frame * 3) / 2; qc_set (qcamsrc->qcam); if (!GST_PAD_CAPS (pad)) { gst_pad_try_set_caps (pad, GST_CAPS_NEW ( "qcam_caps", "video/x-raw-yuv", "format", GST_PROPS_FOURCC (GST_STR_FOURCC ("I420")), "width", GST_PROPS_INT (qcamsrc->qcam->width / scale), "height", GST_PROPS_INT (qcamsrc->qcam->height / scale), "framerate", GST_PROPS_FLOAT (10.) /* bla? */ )); } scan = qc_scan (qcamsrc->qcam); /* FIXME, this doesn't seem to work... */ /*fixdark(qcamsrc->qcam, scan); */ if (qcamsrc->autoexposure != AE_NONE) qcip_autoexposure(qcamsrc->qcam, scan); convert = (qcamsrc->qcam->bpp==4?4:2); for (i=frame; i; i--) { outdata[i] = scan[i]<>1); g_free (scan); return GST_DATA (buf); } static void gst_qcamsrc_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec) { GstQCamSrc *src; /* it's not null if we got it, but it might not be ours */ g_return_if_fail(GST_IS_QCAMSRC(object)); src = GST_QCAMSRC(object); switch (prop_id) { case ARG_WIDTH: qc_setwidth (src->qcam, g_value_get_int (value)); break; case ARG_HEIGHT: qc_setheight (src->qcam, g_value_get_int (value)); break; case ARG_BRIGHTNESS: qc_setbrightness (src->qcam, g_value_get_int (value)); break; case ARG_WHITEBAL: qc_setwhitebal (src->qcam, g_value_get_int (value)); break; case ARG_CONTRAST: qc_setcontrast (src->qcam, g_value_get_int (value)); break; case ARG_TOP: qc_settop (src->qcam, g_value_get_int (value)); break; case ARG_LEFT: qc_setleft (src->qcam, g_value_get_int (value)); break; case ARG_TRANSFER_SCALE: qc_settransfer_scale (src->qcam, g_value_get_int (value)); break; case ARG_DEPTH: qc_setbitdepth (src->qcam, g_value_get_int (value)); break; case ARG_PORT: src->qcam->port = g_value_get_int (value); break; case ARG_AUTOEXP: src->autoexposure = g_value_get_enum (value); if (src->autoexposure != AE_NONE) qcip_set_autoexposure_mode (src->autoexposure); break; default: break; } } static void gst_qcamsrc_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec) { GstQCamSrc *src; /* it's not null if we got it, but it might not be ours */ g_return_if_fail(GST_IS_QCAMSRC(object)); src = GST_QCAMSRC(object); switch (prop_id) { case ARG_WIDTH: g_value_set_int (value, qc_getwidth (src->qcam)); break; case ARG_HEIGHT: g_value_set_int (value, qc_getheight (src->qcam)); break; case ARG_BRIGHTNESS: g_value_set_int (value, qc_getbrightness (src->qcam)); break; case ARG_WHITEBAL: g_value_set_int (value, qc_getwhitebal (src->qcam)); break; case ARG_CONTRAST: g_value_set_int (value, qc_getcontrast (src->qcam)); break; case ARG_TOP: g_value_set_int (value, qc_gettop (src->qcam)); break; case ARG_LEFT: g_value_set_int (value, qc_getleft (src->qcam)); break; case ARG_TRANSFER_SCALE: g_value_set_int (value, qc_gettransfer_scale (src->qcam)); break; case ARG_DEPTH: g_value_set_int (value, qc_getbitdepth (src->qcam)); break; case ARG_PORT: g_value_set_int (value, src->qcam->port); break; case ARG_AUTOEXP: g_value_set_enum (value, src->autoexposure); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); break; } } static GstElementStateReturn gst_qcamsrc_change_state (GstElement *element) { g_return_val_if_fail(GST_IS_QCAMSRC(element), FALSE); /* if going down into NULL state, close the file if it's open */ if (GST_STATE_PENDING(element) == GST_STATE_NULL) { if (GST_FLAG_IS_SET(element,GST_QCAMSRC_OPEN)) gst_qcamsrc_close(GST_QCAMSRC(element)); /* otherwise (READY or higher) we need to open the sound card */ } else { if (!GST_FLAG_IS_SET(element,GST_QCAMSRC_OPEN)) { gst_info ("qcamsrc: opening\n"); if (!gst_qcamsrc_open(GST_QCAMSRC(element))) { gst_info ("qcamsrc: open failed\n"); return GST_STATE_FAILURE; } } } if (GST_ELEMENT_CLASS(parent_class)->change_state) return GST_ELEMENT_CLASS(parent_class)->change_state(element); return GST_STATE_SUCCESS; } static gboolean gst_qcamsrc_open (GstQCamSrc *qcamsrc) { if (qc_open (qcamsrc->qcam)) { g_warning("qcamsrc: Cannot open QuickCam.\n"); return FALSE; } GST_FLAG_SET(qcamsrc, GST_QCAMSRC_OPEN); return TRUE; } static void gst_qcamsrc_close (GstQCamSrc *src) { qc_close (src->qcam); GST_FLAG_UNSET(src, GST_QCAMSRC_OPEN); } static gboolean plugin_init (GstPlugin *plugin) { if (!gst_element_register (plugin, "qcamsrc", GST_RANK_NONE, GST_TYPE_QCAMSRC)) return FALSE; return TRUE; } GST_PLUGIN_DEFINE ( GST_VERSION_MAJOR, GST_VERSION_MINOR, "qcamsrc", "Read from a QuickCam device", plugin_init, VERSION, GST_LICENSE, GST_COPYRIGHT, GST_PACKAGE, GST_ORIGIN )