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