/* * GStreamer * Copyright (C) 2013 Jan Schmidt * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER * DEALINGS IN THE SOFTWARE. * * Alternatively, the contents of this file may be used under the * GNU Lesser General Public License Version 2.1 (the "LGPL"), in * which case the following provisions apply instead of the ones * mentioned above: * * 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. */ /** * SECTION:element-rpicamsrc * * Source element for capturing from the Raspberry Pi camera module * * * Example launch line * |[ * gst-launch -v -m rpicamsrc ! fakesink * ]| * */ #ifdef HAVE_CONFIG_H # include #endif #include #include #include "gstrpicamsrc.h" #include "gstrpicam_types.h" #include "gstrpicam-enum-types.h" #include "gstrpicamsrcdeviceprovider.h" #include "RaspiCapture.h" #include "bcm_host.h" #include "interface/vcos/vcos.h" #include "interface/mmal/mmal.h" #include "interface/mmal/mmal_logging.h" #include "interface/mmal/mmal_buffer.h" #include "interface/mmal/util/mmal_util.h" #include "interface/mmal/util/mmal_util_params.h" #include "interface/mmal/util/mmal_default_components.h" #include "interface/mmal/util/mmal_connection.h" GST_DEBUG_CATEGORY (gst_rpi_cam_src_debug); /* Filter signals and args */ enum { /* FILL ME */ LAST_SIGNAL }; enum { PROP_0, PROP_BITRATE, PROP_PREVIEW, PROP_PREVIEW_ENCODED, PROP_PREVIEW_OPACITY, PROP_FULLSCREEN, PROP_SHARPNESS, PROP_CONTRAST, PROP_BRIGHTNESS, PROP_SATURATION, PROP_ISO, PROP_VIDEO_STABILISATION, PROP_EXPOSURE_COMPENSATION, PROP_EXPOSURE_MODE, PROP_EXPOSURE_METERING_MODE, PROP_AWB_MODE, PROP_IMAGE_EFFECT, PROP_IMAGE_EFFECT_PARAMS, PROP_COLOUR_EFFECTS, PROP_ROTATION, PROP_HFLIP, PROP_VFLIP, PROP_ROI_X, PROP_ROI_Y, PROP_ROI_W, PROP_ROI_H, }; #define BITRATE_DEFAULT 17000000 /* 17Mbit/s default for 1080p */ #define BITRATE_HIGHEST 25000000 #define SHARPNESS_DEFAULT 0 #define CONTRAST_DEFAULT 0 #define BRIGHTNESS_DEFAULT 50 #define SATURATION_DEFAULT 0 #define ISO_DEFAULT 0 #define VIDEO_STABILISATION_DEFAULT FALSE #define EXPOSURE_COMPENSATION_DEFAULT 0 #define EXPOSURE_MODE_DEFAULT GST_RPI_CAM_SRC_EXPOSURE_MODE_AUTO #define EXPOSURE_METERING_MODE_DEFAULT GST_RPI_CAM_SRC_EXPOSURE_METERING_MODE_AVERAGE /* params->exposureMode = MMAL_PARAM_EXPOSUREMODE_AUTO; params->exposureMeterMode = MMAL_PARAM_EXPOSUREMETERINGMODE_AVERAGE; params->awbMode = MMAL_PARAM_AWBMODE_AUTO; params->imageEffect = MMAL_PARAM_IMAGEFX_NONE; params->colourEffects.enable = 0; params->colourEffects.u = 128; params->colourEffects.v = 128; params->rotation = 0; params->hflip = params->vflip = 0; params->roi.x = params->roi.y = 0.0; params->roi.w = params->roi.h = 1.0; */ #define RAW_AND_JPEG_CAPS \ GST_VIDEO_CAPS_MAKE (GST_VIDEO_FORMATS_ALL) ";" \ "image/jpeg," \ "width = " GST_VIDEO_SIZE_RANGE "," \ "height = " GST_VIDEO_SIZE_RANGE "," \ "framerate = " GST_VIDEO_FPS_RANGE #define H264_CAPS \ "video/x-h264, " \ "width = " GST_VIDEO_SIZE_RANGE ", " \ "height = " GST_VIDEO_SIZE_RANGE ", " \ "framerate = " GST_VIDEO_FPS_RANGE ", " \ "stream-format = (string) byte-stream, " \ "alignment = (string) au, " \ "profile = (string) { baseline, main, high }" static GstStaticPadTemplate video_src_template = GST_STATIC_PAD_TEMPLATE ("src", GST_PAD_SRC, GST_PAD_ALWAYS, GST_STATIC_CAPS ( /*RAW_AND_JPEG_CAPS "; " */ H264_CAPS) ); #define gst_rpi_cam_src_parent_class parent_class G_DEFINE_TYPE (GstRpiCamSrc, gst_rpi_cam_src, GST_TYPE_PUSH_SRC); static void gst_rpi_cam_src_set_property (GObject * object, guint prop_id, const GValue * value, GParamSpec * pspec); static void gst_rpi_cam_src_get_property (GObject * object, guint prop_id, GValue * value, GParamSpec * pspec); static gboolean gst_rpi_cam_src_start (GstBaseSrc * parent); static gboolean gst_rpi_cam_src_stop (GstBaseSrc * parent); static gboolean gst_rpi_cam_src_decide_allocation (GstBaseSrc * src, GstQuery * query); static GstFlowReturn gst_rpi_cam_src_create (GstPushSrc * parent, GstBuffer ** buf); static GstCaps *gst_rpi_cam_src_get_caps (GstBaseSrc * src, GstCaps * filter); static gboolean gst_rpi_cam_src_set_caps (GstBaseSrc * src, GstCaps * caps); static GstCaps *gst_rpi_cam_src_fixate (GstBaseSrc * basesrc, GstCaps * caps); static gboolean gst_rpi_cam_src_event (GstBaseSrc * src, GstEvent * event); static gboolean gst_rpi_cam_src_send_event (GstElement * element, GstEvent * event); static void gst_rpi_cam_src_class_init (GstRpiCamSrcClass * klass) { GObjectClass *gobject_class; GstElementClass *gstelement_class; GstBaseSrcClass *basesrc_class; GstPushSrcClass *pushsrc_class; gobject_class = (GObjectClass *) klass; gstelement_class = (GstElementClass *) klass; basesrc_class = (GstBaseSrcClass *) klass; pushsrc_class = (GstPushSrcClass *) klass; gobject_class->set_property = gst_rpi_cam_src_set_property; gobject_class->get_property = gst_rpi_cam_src_get_property; g_object_class_install_property (gobject_class, PROP_BITRATE, g_param_spec_int ("bitrate", "Bitrate", "Bitrate for encoding", 1, BITRATE_HIGHEST, BITRATE_DEFAULT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); g_object_class_install_property (gobject_class, PROP_PREVIEW, g_param_spec_boolean ("preview", "Preview Window", "Display preview window overlay", TRUE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); g_object_class_install_property (gobject_class, PROP_FULLSCREEN, g_param_spec_boolean ("fullscreen", "Fullscreen Preview", "Display preview window full screen", TRUE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); g_object_class_install_property (gobject_class, PROP_PREVIEW_ENCODED, g_param_spec_boolean ("preview-encoded", "Preview Encoded", "Display encoder output in the preview", TRUE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_PREVIEW_OPACITY, g_param_spec_int ("preview-opacity", "Preview Opacity", "Opacity to use for the preview window", 0, 255, 255, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_SHARPNESS, g_param_spec_int ("sharpness", "Sharpness", "Image capture sharpness", -100, 100, SHARPNESS_DEFAULT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); g_object_class_install_property (gobject_class, PROP_CONTRAST, g_param_spec_int ("contrast", "Contrast", "Image capture contrast", -100, 100, CONTRAST_DEFAULT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); g_object_class_install_property (gobject_class, PROP_BRIGHTNESS, g_param_spec_int ("brightness", "Brightness", "Image capture brightness", 0, 100, BRIGHTNESS_DEFAULT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); g_object_class_install_property (gobject_class, PROP_SATURATION, g_param_spec_int ("saturation", "Saturation", "Image capture saturation", -100, 100, SATURATION_DEFAULT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); g_object_class_install_property (gobject_class, PROP_ISO, g_param_spec_int ("iso", "ISO", "ISO value to use (0 = Auto)", 0, 3200, 0, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); g_object_class_install_property (gobject_class, PROP_VIDEO_STABILISATION, g_param_spec_boolean ("video-stabilisation", "Video Stabilisation", "Enable or disable video stabilisation", FALSE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); g_object_class_install_property (gobject_class, PROP_EXPOSURE_COMPENSATION, g_param_spec_int ("exposure-compensation", "EV compensation", "Exposure Value compensation", -10, 10, 0, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); g_object_class_install_property (gobject_class, PROP_EXPOSURE_MODE, g_param_spec_enum ("exposure-mode", "Exposure Mode", "Camera exposure mode to use", GST_RPI_CAM_TYPE_RPI_CAM_SRC_EXPOSURE_MODE, EXPOSURE_MODE_DEFAULT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); g_object_class_install_property (gobject_class, PROP_EXPOSURE_METERING_MODE, g_param_spec_enum ("metering-mode", "Exposure Metering Mode", "Camera exposure metering mode to use", GST_RPI_CAM_TYPE_RPI_CAM_SRC_EXPOSURE_METERING_MODE, EXPOSURE_METERING_MODE_DEFAULT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); g_object_class_install_property (gobject_class, PROP_AWB_MODE, g_param_spec_enum ("awb-mode", "Automatic White Balance Mode", "White Balance mode", GST_RPI_CAM_TYPE_RPI_CAM_SRC_AWB_MODE, GST_RPI_CAM_SRC_AWB_MODE_AUTO, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); g_object_class_install_property (gobject_class, PROP_IMAGE_EFFECT, g_param_spec_enum ("image-effect", "Image effect", "Visual FX to apply to the image", GST_RPI_CAM_TYPE_RPI_CAM_SRC_IMAGE_EFFECT, GST_RPI_CAM_SRC_IMAGEFX_NONE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); #if 0 PROP_IMAGE_EFFECT_PARAMS, PROP_COLOUR_EFFECTS, #endif g_object_class_install_property (gobject_class, PROP_ROTATION, g_param_spec_int ("rotation", "Rotation", "Rotate captured image (0, 90, 180, 270 degrees)", 0, 270, 0, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); g_object_class_install_property (gobject_class, PROP_HFLIP, g_param_spec_boolean ("hflip", "Horizontal Flip", "Flip capture horizontally", FALSE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); g_object_class_install_property (gobject_class, PROP_VFLIP, g_param_spec_boolean ("vflip", "Vertical Flip", "Flip capture vertically", FALSE, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); g_object_class_install_property (gobject_class, PROP_ROI_X, g_param_spec_float ("roi-x", "ROI X", "Normalised region-of-interest X coord", 0, 1.0, 0, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); g_object_class_install_property (gobject_class, PROP_ROI_Y, g_param_spec_float ("roi-y", "ROI Y", "Normalised region-of-interest Y coord", 0, 1.0, 0, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); g_object_class_install_property (gobject_class, PROP_ROI_W, g_param_spec_float ("roi-w", "ROI W", "Normalised region-of-interest W coord", 0, 1.0, 1.0, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); g_object_class_install_property (gobject_class, PROP_ROI_H, g_param_spec_float ("roi-h", "ROI H", "Normalised region-of-interest H coord", 0, 1.0, 1.0, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS)); gst_element_class_set_static_metadata (gstelement_class, "Raspberry Pi Camera Source", "Source/Video", "Raspberry Pi camera module source", "Jan Schmidt "); gst_element_class_add_pad_template (gstelement_class, gst_static_pad_template_get (&video_src_template)); basesrc_class->start = GST_DEBUG_FUNCPTR (gst_rpi_cam_src_start); basesrc_class->stop = GST_DEBUG_FUNCPTR (gst_rpi_cam_src_stop); basesrc_class->decide_allocation = GST_DEBUG_FUNCPTR (gst_rpi_cam_src_decide_allocation); basesrc_class->get_caps = GST_DEBUG_FUNCPTR (gst_rpi_cam_src_get_caps); basesrc_class->set_caps = GST_DEBUG_FUNCPTR (gst_rpi_cam_src_set_caps); basesrc_class->fixate = GST_DEBUG_FUNCPTR (gst_rpi_cam_src_fixate); basesrc_class->event = GST_DEBUG_FUNCPTR (gst_rpi_cam_src_event); gstelement_class->send_event = GST_DEBUG_FUNCPTR (gst_rpi_cam_src_send_event); pushsrc_class->create = GST_DEBUG_FUNCPTR (gst_rpi_cam_src_create); raspicapture_init (); } static void gst_rpi_cam_src_init (GstRpiCamSrc * src) { gst_base_src_set_format (GST_BASE_SRC (src), GST_FORMAT_TIME); gst_base_src_set_live (GST_BASE_SRC (src), TRUE); raspicapture_default_config (&src->capture_config); src->capture_config.verbose = 1; /* do-timestamping by default for now. FIXME: Implement proper timestamping */ gst_base_src_set_do_timestamp (GST_BASE_SRC (src), TRUE); } static void gst_rpi_cam_src_set_property (GObject * object, guint prop_id, const GValue * value, GParamSpec * pspec) { GstRpiCamSrc *src = GST_RPICAMSRC (object); switch (prop_id) { case PROP_BITRATE: src->capture_config.bitrate = g_value_get_int (value); break; case PROP_PREVIEW: src->capture_config.preview_parameters.wantPreview = g_value_get_boolean (value); break; case PROP_PREVIEW_ENCODED: src->capture_config.immutableInput = g_value_get_boolean (value); break; case PROP_FULLSCREEN: src->capture_config.preview_parameters.wantFullScreenPreview = g_value_get_boolean (value); break; case PROP_PREVIEW_OPACITY: src->capture_config.preview_parameters.opacity = g_value_get_int (value); break; case PROP_SHARPNESS: src->capture_config.camera_parameters.sharpness = g_value_get_int (value); break; case PROP_CONTRAST: src->capture_config.camera_parameters.contrast = g_value_get_int (value); break; case PROP_BRIGHTNESS: src->capture_config.camera_parameters.brightness = g_value_get_int (value); break; case PROP_SATURATION: src->capture_config.camera_parameters.saturation = g_value_get_int (value); break; case PROP_ISO: src->capture_config.camera_parameters.ISO = g_value_get_int (value); break; case PROP_VIDEO_STABILISATION: src->capture_config.camera_parameters.videoStabilisation = g_value_get_boolean (value); break; case PROP_EXPOSURE_COMPENSATION: src->capture_config.camera_parameters.exposureCompensation = g_value_get_int (value); break; case PROP_EXPOSURE_MODE: src->capture_config.camera_parameters.exposureMode = g_value_get_enum (value); break; case PROP_EXPOSURE_METERING_MODE: src->capture_config.camera_parameters.exposureMeterMode = g_value_get_enum (value); break; case PROP_ROTATION: src->capture_config.camera_parameters.rotation = g_value_get_int (value); break; case PROP_AWB_MODE: src->capture_config.camera_parameters.awbMode = g_value_get_enum (value); break; case PROP_IMAGE_EFFECT: src->capture_config.camera_parameters.imageEffect = g_value_get_enum (value); break; case PROP_HFLIP: src->capture_config.camera_parameters.hflip = g_value_get_boolean (value); break; case PROP_VFLIP: src->capture_config.camera_parameters.vflip = g_value_get_boolean (value); break; case PROP_ROI_X: src->capture_config.camera_parameters.roi.x = g_value_get_float (value); break; case PROP_ROI_Y: src->capture_config.camera_parameters.roi.y = g_value_get_float (value); break; case PROP_ROI_W: src->capture_config.camera_parameters.roi.w = g_value_get_float (value); break; case PROP_ROI_H: src->capture_config.camera_parameters.roi.h = g_value_get_float (value); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); break; } } static void gst_rpi_cam_src_get_property (GObject * object, guint prop_id, GValue * value, GParamSpec * pspec) { GstRpiCamSrc *src = GST_RPICAMSRC (object); switch (prop_id) { case PROP_BITRATE: g_value_set_int (value, src->capture_config.bitrate); break; case PROP_PREVIEW: g_value_set_boolean (value, src->capture_config.preview_parameters.wantPreview); break; case PROP_PREVIEW_ENCODED: g_value_set_boolean (value, src->capture_config.immutableInput); break; case PROP_FULLSCREEN: g_value_set_boolean (value, src->capture_config.preview_parameters.wantFullScreenPreview); break; case PROP_PREVIEW_OPACITY: g_value_set_int (value, src->capture_config.preview_parameters.opacity); break; case PROP_SHARPNESS: g_value_set_int (value, src->capture_config.camera_parameters.sharpness); break; case PROP_CONTRAST: g_value_set_int (value, src->capture_config.camera_parameters.contrast); break; case PROP_BRIGHTNESS: g_value_set_int (value, src->capture_config.camera_parameters.brightness); break; case PROP_SATURATION: g_value_set_int (value, src->capture_config.camera_parameters.saturation); break; case PROP_ISO: g_value_set_int (value, src->capture_config.camera_parameters.ISO); break; case PROP_VIDEO_STABILISATION: g_value_set_boolean (value, ! !(src->capture_config.camera_parameters.videoStabilisation)); break; case PROP_EXPOSURE_COMPENSATION: g_value_set_int (value, src->capture_config.camera_parameters.exposureCompensation); break; case PROP_EXPOSURE_MODE: g_value_set_enum (value, src->capture_config.camera_parameters.exposureMode); break; case PROP_EXPOSURE_METERING_MODE: g_value_set_enum (value, src->capture_config.camera_parameters.exposureMeterMode); break; case PROP_ROTATION: g_value_set_int (value, src->capture_config.camera_parameters.rotation); break; case PROP_AWB_MODE: g_value_set_enum (value, src->capture_config.camera_parameters.awbMode); break; case PROP_IMAGE_EFFECT: g_value_set_enum (value, src->capture_config.camera_parameters.imageEffect); break; case PROP_HFLIP: g_value_set_boolean (value, ! !(src->capture_config.camera_parameters.hflip)); break; case PROP_VFLIP: g_value_set_boolean (value, ! !(src->capture_config.camera_parameters.vflip)); break; case PROP_ROI_X: g_value_set_float (value, src->capture_config.camera_parameters.roi.x); break; case PROP_ROI_Y: g_value_set_float (value, src->capture_config.camera_parameters.roi.y); break; case PROP_ROI_W: g_value_set_float (value, src->capture_config.camera_parameters.roi.w); break; case PROP_ROI_H: g_value_set_float (value, src->capture_config.camera_parameters.roi.h); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); break; } } static gboolean gst_rpi_cam_src_start (GstBaseSrc * parent) { GstRpiCamSrc *src = GST_RPICAMSRC (parent); GST_LOG_OBJECT (src, "In src_start()"); src->capture_state = raspi_capture_setup (&src->capture_config); if (src->capture_state == NULL) return FALSE; return TRUE; } static gboolean gst_rpi_cam_src_stop (GstBaseSrc * parent) { GstRpiCamSrc *src = GST_RPICAMSRC (parent); if (src->started) raspi_capture_stop (src->capture_state); raspi_capture_free (src->capture_state); src->capture_state = NULL; return TRUE; } static gboolean gst_rpi_cam_src_send_event (GstElement * parent, GstEvent * event) { GstRpiCamSrc *src = GST_RPICAMSRC (parent); gboolean ret; switch (GST_EVENT_TYPE (event)) { case GST_EVENT_CUSTOM_DOWNSTREAM: case GST_EVENT_CUSTOM_UPSTREAM: if (gst_video_event_is_force_key_unit (event)) { if (src->started) { ret = raspi_capture_request_i_frame (src->capture_state); } else { ret = FALSE; } gst_event_unref (event); } else { ret = GST_ELEMENT_CLASS (parent_class)->send_event(parent, event); } break; default: ret = GST_ELEMENT_CLASS (parent_class)->send_event(parent, event); break; } return ret; } static gboolean gst_rpi_cam_src_event (GstBaseSrc * parent, GstEvent * event) { GstRpiCamSrc *src = GST_RPICAMSRC (parent); gboolean ret; switch (GST_EVENT_TYPE (event)) { case GST_EVENT_CUSTOM_DOWNSTREAM: case GST_EVENT_CUSTOM_UPSTREAM: if (gst_video_event_is_force_key_unit (event)) { if (src->started) { ret = raspi_capture_request_i_frame (src->capture_state); } else { ret = FALSE; } gst_event_unref (event); } else { ret = GST_BASE_SRC_CLASS (parent_class)->event(parent, event); } break; default: ret = GST_BASE_SRC_CLASS (parent_class)->event(parent, event); break; } return ret; } static GstCaps * gst_rpi_cam_src_get_caps (GstBaseSrc * bsrc, GstCaps * filter) { GstRpiCamSrc *src = GST_RPICAMSRC (bsrc); GstCaps *caps; caps = gst_pad_get_pad_template_caps (GST_BASE_SRC_PAD (bsrc)); if (src->capture_state == NULL) goto done; /* FIXME: Retrieve limiting parameters from the camera module, max width/height fps-range */ caps = gst_caps_make_writable (caps); gst_caps_set_simple (caps, "width", GST_TYPE_INT_RANGE, 1, 1920, "height", GST_TYPE_INT_RANGE, 1, 1080, "framerate", GST_TYPE_FRACTION_RANGE, 0, 1, 90, 1, NULL); done: GST_DEBUG_OBJECT (src, "get_caps returning %" GST_PTR_FORMAT, caps); return caps; } static gboolean gst_rpi_cam_src_set_caps (GstBaseSrc * bsrc, GstCaps * caps) { GstRpiCamSrc *src = GST_RPICAMSRC (bsrc); GstVideoInfo info; GST_DEBUG_OBJECT (src, "In set_caps %" GST_PTR_FORMAT, caps); if (!gst_video_info_from_caps (&info, caps)) return FALSE; src->capture_config.width = info.width; src->capture_config.height = info.height; src->capture_config.fps_n = info.fps_n; src->capture_config.fps_d = info.fps_d; return TRUE; } static gboolean gst_rpi_cam_src_decide_allocation (GstBaseSrc * bsrc, GstQuery * query) { GST_LOG_OBJECT (bsrc, "In decide_allocation"); return GST_BASE_SRC_CLASS (parent_class)->decide_allocation (bsrc, query); } static GstCaps * gst_rpi_cam_src_fixate (GstBaseSrc * basesrc, GstCaps * caps) { GstStructure *structure; gint i; GST_DEBUG_OBJECT (basesrc, "fixating caps %" GST_PTR_FORMAT, caps); caps = gst_caps_make_writable (caps); for (i = 0; i < gst_caps_get_size (caps); ++i) { structure = gst_caps_get_structure (caps, i); /* Fixate to 1920x1080 resolution if possible */ gst_structure_fixate_field_nearest_int (structure, "width", 1920); gst_structure_fixate_field_nearest_int (structure, "height", 1080); gst_structure_fixate_field_nearest_fraction (structure, "framerate", 30, 1); gst_structure_fixate_field (structure, "format"); } GST_DEBUG_OBJECT (basesrc, "fixated caps %" GST_PTR_FORMAT, caps); caps = GST_BASE_SRC_CLASS (parent_class)->fixate (basesrc, caps); return caps; } static GstFlowReturn gst_rpi_cam_src_create (GstPushSrc * parent, GstBuffer ** buf) { GstRpiCamSrc *src = GST_RPICAMSRC (parent); GstFlowReturn ret; if (!src->started) { if (!raspi_capture_start (src->capture_state)) return GST_FLOW_ERROR; src->started = TRUE; } /* FIXME: Use custom allocator */ ret = raspi_capture_fill_buffer (src->capture_state, buf); if (*buf) GST_LOG_OBJECT (src, "Made buffer of size %" G_GSIZE_FORMAT, gst_buffer_get_size (*buf)); return ret; } static gboolean plugin_init (GstPlugin * plugin) { gboolean ret; GST_DEBUG_CATEGORY_INIT (gst_rpi_cam_src_debug, "rpicamsrc", 0, "rpicamsrc debug"); ret = gst_element_register (plugin, "rpicamsrc", GST_RANK_NONE, GST_TYPE_RPICAMSRC); #if GST_CHECK_VERSION (1,4,0) ret &= gst_device_provider_register (plugin, "rpicamsrcdeviceprovider", GST_RANK_PRIMARY, GST_TYPE_RPICAMSRC_DEVICE_PROVIDER); #endif return ret; } #ifndef PACKAGE #define PACKAGE "gstrpicamsrc" #endif GST_PLUGIN_DEFINE (GST_VERSION_MAJOR, GST_VERSION_MINOR, rpicamsrc, "Raspberry Pi Camera Source", plugin_init, VERSION, "LGPL", "GStreamer", "http://gstreamer.net/")