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68bff61732
Cleanup properly by unrefing the encoding profile and preview caps
1081 lines
34 KiB
C
1081 lines
34 KiB
C
/*
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* GStreamer
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* Copyright (C) 2010 Texas Instruments, Inc
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* Copyright (C) 2010 Thiago Santos <thiago.sousa.santos@collabora.co.uk>
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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-wrappercamerabinsrc
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*
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* A camera bin src element that wraps a default video source with a single
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* pad into the 3pad model that camerabin2 expects.
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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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#include "gstwrappercamerabinsrc.h"
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#include "camerabingeneral.h"
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enum
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{
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PROP_0,
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PROP_VIDEO_SRC,
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PROP_POST_PREVIEWS,
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PROP_PREVIEW_CAPS
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};
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#define DEFAULT_POST_PREVIEWS TRUE
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/* Using "bilinear" as default zoom method */
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#define CAMERABIN_DEFAULT_ZOOM_METHOD 1
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GST_DEBUG_CATEGORY (wrapper_camera_bin_src_debug);
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#define GST_CAT_DEFAULT wrapper_camera_bin_src_debug
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GST_BOILERPLATE (GstWrapperCameraBinSrc, gst_wrapper_camera_bin_src,
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GstBaseCameraSrc, GST_TYPE_BASE_CAMERA_SRC);
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static void set_capsfilter_caps (GstWrapperCameraBinSrc * self,
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GstCaps * new_caps);
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static void
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gst_wrapper_camera_bin_src_dispose (GObject * object)
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{
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GstWrapperCameraBinSrc *self = GST_WRAPPER_CAMERA_BIN_SRC (object);
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if (self->app_vid_src) {
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gst_object_unref (self->app_vid_src);
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self->app_vid_src = NULL;
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}
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if (self->preview_pipeline) {
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gst_camerabin_destroy_preview_pipeline (self->preview_pipeline);
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self->preview_pipeline = NULL;
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}
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if (self->preview_caps)
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gst_caps_replace (&self->preview_caps, NULL);
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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_wrapper_camera_bin_src_finalize (GstWrapperCameraBinSrc * self)
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{
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G_OBJECT_CLASS (parent_class)->finalize ((GObject *) (self));
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}
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static void
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gst_wrapper_camera_bin_src_set_property (GObject * object,
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guint prop_id, const GValue * value, GParamSpec * pspec)
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{
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GstWrapperCameraBinSrc *self = GST_WRAPPER_CAMERA_BIN_SRC (object);
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switch (prop_id) {
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case PROP_VIDEO_SRC:
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if (GST_STATE (self) != GST_STATE_NULL) {
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GST_ELEMENT_ERROR (self, CORE, FAILED,
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("camerasrc must be in NULL state when setting the video source element"),
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(NULL));
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} else {
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if (self->app_vid_src)
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gst_object_unref (self->app_vid_src);
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self->app_vid_src = g_value_get_object (value);
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if (self->app_vid_src)
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gst_object_ref (self->app_vid_src);
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}
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break;
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case PROP_POST_PREVIEWS:
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self->post_previews = g_value_get_boolean (value);
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break;
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case PROP_PREVIEW_CAPS:
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gst_caps_replace (&self->preview_caps,
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(GstCaps *) gst_value_get_caps (value));
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if (self->preview_pipeline)
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gst_camerabin_preview_set_caps (self->preview_pipeline,
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(GstCaps *) gst_value_get_caps (value));
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (self, prop_id, pspec);
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break;
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}
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}
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static void
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gst_wrapper_camera_bin_src_get_property (GObject * object,
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guint prop_id, GValue * value, GParamSpec * pspec)
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{
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GstWrapperCameraBinSrc *self = GST_WRAPPER_CAMERA_BIN_SRC (object);
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switch (prop_id) {
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case PROP_VIDEO_SRC:
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if (self->src_vid_src)
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g_value_set_object (value, self->src_vid_src);
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else
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g_value_set_object (value, self->app_vid_src);
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break;
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case PROP_POST_PREVIEWS:
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g_value_set_boolean (value, self->post_previews);
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break;
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case PROP_PREVIEW_CAPS:
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if (self->preview_caps)
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gst_value_set_caps (value, self->preview_caps);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (self, prop_id, pspec);
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break;
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}
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}
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static void
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gst_wrapper_camera_bin_reset_video_src_caps (GstWrapperCameraBinSrc * self,
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GstCaps * caps)
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{
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GST_DEBUG_OBJECT (self, "Resetting src caps to %" GST_PTR_FORMAT, caps);
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if (self->src_vid_src) {
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gst_element_set_state (self->src_vid_src, GST_STATE_NULL);
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set_capsfilter_caps (self, caps);
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GST_DEBUG_OBJECT (self, "Bringing source up");
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gst_element_sync_state_with_parent (self->src_vid_src);
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}
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}
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/**
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* gst_wrapper_camera_bin_src_imgsrc_probe:
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*
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* Buffer probe called before sending each buffer to image queue.
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*/
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static gboolean
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gst_wrapper_camera_bin_src_imgsrc_probe (GstPad * pad, GstBuffer * buffer,
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gpointer data)
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{
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GstWrapperCameraBinSrc *self = GST_WRAPPER_CAMERA_BIN_SRC (data);
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GstBaseCameraSrc *camerasrc = GST_BASE_CAMERA_SRC (data);
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gboolean ret = FALSE;
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GST_LOG_OBJECT (self, "Image probe, mode %d, capture count %d",
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camerasrc->mode, self->image_capture_count);
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g_mutex_lock (camerasrc->capturing_mutex);
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if (self->image_capture_count > 0) {
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ret = TRUE;
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self->image_capture_count--;
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/* post preview */
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/* TODO This can likely be optimized if the viewfinder caps is the same as
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* the preview caps, avoiding another scaling of the same buffer. */
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if (self->post_previews)
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gst_camerabin_preview_pipeline_post (self->preview_pipeline, buffer);
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if (self->image_capture_count == 0) {
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gst_base_camera_src_finish_capture (camerasrc);
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}
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}
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g_mutex_unlock (camerasrc->capturing_mutex);
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return ret;
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}
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/**
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* gst_wrapper_camera_bin_src_vidsrc_probe:
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*
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* Buffer probe called before sending each buffer to image queue.
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*/
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static gboolean
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gst_wrapper_camera_bin_src_vidsrc_probe (GstPad * pad, GstBuffer * buffer,
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gpointer data)
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{
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GstWrapperCameraBinSrc *self = GST_WRAPPER_CAMERA_BIN_SRC (data);
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GstBaseCameraSrc *camerasrc = GST_BASE_CAMERA_SRC_CAST (self);
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gboolean ret = FALSE;
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GST_LOG_OBJECT (self, "Video probe, mode %d, capture status %d",
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camerasrc->mode, self->video_rec_status);
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/* TODO do we want to lock for every buffer? */
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/*
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* Note that we can use gst_pad_push_event here because we are a buffer
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* probe.
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*/
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/* TODO shouldn't access this directly */
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g_mutex_lock (camerasrc->capturing_mutex);
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if (self->video_rec_status == GST_VIDEO_RECORDING_STATUS_DONE) {
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/* NOP */
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} else if (self->video_rec_status == GST_VIDEO_RECORDING_STATUS_STARTING) {
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gint64 start = 0;
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if (GST_CLOCK_TIME_IS_VALID (GST_BUFFER_TIMESTAMP (buffer)))
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start = GST_BUFFER_TIMESTAMP (buffer);
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/* send the newseg */
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GST_DEBUG_OBJECT (self, "Starting video recording, pushing newsegment");
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gst_pad_push_event (pad, gst_event_new_new_segment (FALSE, 1.0,
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GST_FORMAT_TIME, start, -1, 0));
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self->video_rec_status = GST_VIDEO_RECORDING_STATUS_RUNNING;
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/* post preview */
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if (self->post_previews)
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gst_camerabin_preview_pipeline_post (self->preview_pipeline, buffer);
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ret = TRUE;
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} else if (self->video_rec_status == GST_VIDEO_RECORDING_STATUS_FINISHING) {
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/* send eos */
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GST_DEBUG_OBJECT (self, "Finishing video recording, pushing eos");
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gst_pad_push_event (pad, gst_event_new_eos ());
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self->video_rec_status = GST_VIDEO_RECORDING_STATUS_DONE;
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gst_base_camera_src_finish_capture (camerasrc);
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} else {
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ret = TRUE;
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}
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g_mutex_unlock (camerasrc->capturing_mutex);
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return ret;
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}
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static gboolean
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gst_wrapper_camera_bin_src_event (GstPad * pad, GstEvent * event)
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{
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GstWrapperCameraBinSrc *src =
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GST_WRAPPER_CAMERA_BIN_SRC (GST_PAD_PARENT (pad));
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const GstStructure *structure;
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structure = gst_event_get_structure (event);
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if (structure && gst_structure_has_name (structure, "renegotiate")) {
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GST_DEBUG_OBJECT (src, "Received renegotiate on pad %s",
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GST_PAD_NAME (pad));
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if (pad == src->imgsrc) {
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src->image_renegotiate = TRUE;
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} else if (pad == src->vidsrc) {
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src->video_renegotiate = TRUE;
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}
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}
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return src->srcpad_event_func (pad, event);
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}
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/**
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* gst_wrapper_camera_bin_src_construct_pipeline:
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* @bcamsrc: camerasrc object
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*
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* This function creates and links the elements of the camerasrc bin
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* videosrc ! cspconv ! capsfilter ! crop ! scale ! capsfilter ! tee name=t !
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* t. ! ... (viewfinder pad)
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* t. ! output-selector name=outsel
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* outsel. ! (image pad)
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* outsel. ! (video pad)
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*
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* Returns: TRUE, if elements were successfully created, FALSE otherwise
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*/
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static gboolean
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gst_wrapper_camera_bin_src_construct_pipeline (GstBaseCameraSrc * bcamsrc)
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{
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GstWrapperCameraBinSrc *self = GST_WRAPPER_CAMERA_BIN_SRC (bcamsrc);
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GstBin *cbin = GST_BIN (bcamsrc);
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GstElement *tee;
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gboolean ret = FALSE;
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GstElement *videoscale;
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GstPad *vf_pad;
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GstPad *tee_capture_pad;
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if (self->elements_created)
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return TRUE;
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GST_DEBUG_OBJECT (self, "constructing pipeline");
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/* Add application set or default video src element */
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if (!(self->src_vid_src = gst_camerabin_setup_default_element (cbin,
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self->app_vid_src, "autovideosrc", DEFAULT_VIDEOSRC,
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"camerasrc-real-src"))) {
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self->src_vid_src = NULL;
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goto done;
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} else {
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if (!gst_camerabin_add_element (cbin, self->src_vid_src)) {
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goto done;
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}
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}
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/* we lost the reference */
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self->app_vid_src = NULL;
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/* add a buffer probe to the src elemento to drop EOS from READY->NULL */
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{
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GstPad *pad;
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pad = gst_element_get_static_pad (self->src_vid_src, "src");
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self->src_event_probe_id = gst_pad_add_event_probe (pad,
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(GCallback) gst_camerabin_drop_eos_probe, NULL);
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gst_object_unref (pad);
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}
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if (!gst_camerabin_create_and_add_element (cbin, "ffmpegcolorspace",
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"src-colorspace"))
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goto done;
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if (!(self->src_filter =
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gst_camerabin_create_and_add_element (cbin, "capsfilter",
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"src-capsfilter")))
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goto done;
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if (!(self->src_zoom_crop =
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gst_camerabin_create_and_add_element (cbin, "videocrop",
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"zoom-crop")))
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goto done;
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if (!(self->src_zoom_scale =
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gst_camerabin_create_and_add_element (cbin, "videoscale",
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"zoom-scale")))
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goto done;
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if (!(self->src_zoom_filter =
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gst_camerabin_create_and_add_element (cbin, "capsfilter",
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"zoom-capsfilter")))
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goto done;
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if (!(tee =
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gst_camerabin_create_and_add_element (cbin, "tee", "camerasrc-tee")))
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goto done;
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/* viewfinder pad */
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vf_pad = gst_element_get_request_pad (tee, "src%d");
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g_object_set (tee, "alloc-pad", vf_pad, NULL);
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gst_object_unref (vf_pad);
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/* the viewfinder should always work, so we add some converters to it */
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if (!gst_camerabin_create_and_add_element (cbin, "ffmpegcolorspace",
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"viewfinder-colorspace"))
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goto done;
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if (!(videoscale =
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gst_camerabin_create_and_add_element (cbin, "videoscale",
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"viewfinder-scale")))
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goto done;
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/* image/video pad from tee */
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tee_capture_pad = gst_element_get_request_pad (tee, "src%d");
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self->output_selector =
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gst_element_factory_make ("output-selector", "outsel");
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g_object_set (self->output_selector, "pad-negotiation-mode", 0, NULL);
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gst_bin_add (GST_BIN (self), self->output_selector);
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{
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GstPad *pad = gst_element_get_static_pad (self->output_selector, "sink");
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/* check return TODO */
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gst_pad_link (tee_capture_pad, pad);
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gst_object_unref (pad);
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}
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gst_object_unref (tee_capture_pad);
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/* Create the 2 output pads for video and image */
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self->outsel_vidpad =
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gst_element_get_request_pad (self->output_selector, "src%d");
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self->outsel_imgpad =
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gst_element_get_request_pad (self->output_selector, "src%d");
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g_assert (self->outsel_vidpad != NULL);
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g_assert (self->outsel_imgpad != NULL);
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gst_pad_add_buffer_probe (self->outsel_imgpad,
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G_CALLBACK (gst_wrapper_camera_bin_src_imgsrc_probe), self);
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gst_pad_add_buffer_probe (self->outsel_vidpad,
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G_CALLBACK (gst_wrapper_camera_bin_src_vidsrc_probe), self);
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gst_ghost_pad_set_target (GST_GHOST_PAD (self->imgsrc), self->outsel_imgpad);
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gst_ghost_pad_set_target (GST_GHOST_PAD (self->vidsrc), self->outsel_vidpad);
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if (bcamsrc->mode == MODE_IMAGE) {
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g_object_set (self->output_selector, "active-pad", self->outsel_imgpad,
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NULL);
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} else {
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g_object_set (self->output_selector, "active-pad", self->outsel_vidpad,
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NULL);
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}
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/* hook-up the vf ghostpad */
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vf_pad = gst_element_get_static_pad (videoscale, "src");
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gst_ghost_pad_set_target (GST_GHOST_PAD (self->vfsrc), vf_pad);
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gst_object_unref (vf_pad);
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gst_pad_set_active (self->vfsrc, TRUE);
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gst_pad_set_active (self->imgsrc, TRUE); /* XXX ??? */
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gst_pad_set_active (self->vidsrc, TRUE); /* XXX ??? */
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/* create the preview pipeline */
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self->preview_pipeline =
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gst_camerabin_create_preview_pipeline (GST_ELEMENT_CAST (self));
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if (self->preview_caps)
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gst_camerabin_preview_set_caps (self->preview_pipeline, self->preview_caps);
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ret = TRUE;
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self->elements_created = TRUE;
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done:
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return ret;
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}
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|
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static gboolean
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copy_missing_fields (GQuark field_id, const GValue * value, gpointer user_data)
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{
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GstStructure *st = (GstStructure *) user_data;
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const GValue *val = gst_structure_id_get_value (st, field_id);
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|
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if (G_UNLIKELY (val == NULL)) {
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gst_structure_id_set_value (st, field_id, value);
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}
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|
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return TRUE;
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}
|
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|
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/**
|
|
* adapt_image_capture:
|
|
* @self: camerasrc object
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* @in_caps: caps object that describes incoming image format
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|
*
|
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* Adjust capsfilters and crop according image capture caps if necessary.
|
|
* The captured image format from video source might be different from
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* what application requested, so we can try to fix that in camerabin.
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*
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*/
|
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static void
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adapt_image_capture (GstWrapperCameraBinSrc * self, GstCaps * in_caps)
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{
|
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GstBaseCameraSrc *bcamsrc = GST_BASE_CAMERA_SRC (self);
|
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GstStructure *in_st, *new_st, *req_st;
|
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gint in_width = 0, in_height = 0, req_width = 0, req_height = 0, crop = 0;
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gdouble ratio_w, ratio_h;
|
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GstCaps *filter_caps = NULL;
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|
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GST_LOG_OBJECT (self, "in caps: %" GST_PTR_FORMAT, in_caps);
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GST_LOG_OBJECT (self, "requested caps: %" GST_PTR_FORMAT,
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self->image_capture_caps);
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|
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in_st = gst_caps_get_structure (in_caps, 0);
|
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gst_structure_get_int (in_st, "width", &in_width);
|
|
gst_structure_get_int (in_st, "height", &in_height);
|
|
|
|
req_st = gst_caps_get_structure (self->image_capture_caps, 0);
|
|
gst_structure_get_int (req_st, "width", &req_width);
|
|
gst_structure_get_int (req_st, "height", &req_height);
|
|
|
|
GST_INFO_OBJECT (self, "we requested %dx%d, and got %dx%d", req_width,
|
|
req_height, in_width, in_height);
|
|
|
|
new_st = gst_structure_copy (req_st);
|
|
/* If new fields have been added, we need to copy them */
|
|
gst_structure_foreach (in_st, copy_missing_fields, new_st);
|
|
|
|
gst_structure_set (new_st, "width", G_TYPE_INT, in_width, "height",
|
|
G_TYPE_INT, in_height, NULL);
|
|
|
|
GST_LOG_OBJECT (self, "new image capture caps: %" GST_PTR_FORMAT, new_st);
|
|
|
|
/* Crop if requested aspect ratio differs from incoming frame aspect ratio */
|
|
if (self->src_zoom_crop) {
|
|
|
|
ratio_w = (gdouble) in_width / req_width;
|
|
ratio_h = (gdouble) in_height / req_height;
|
|
|
|
if (ratio_w < ratio_h) {
|
|
crop = in_height - (req_height * ratio_w);
|
|
self->base_crop_top = crop / 2;
|
|
self->base_crop_bottom = crop / 2;
|
|
} else {
|
|
crop = in_width - (req_width * ratio_h);
|
|
self->base_crop_left = crop / 2;
|
|
self->base_crop_right += crop / 2;
|
|
}
|
|
|
|
GST_INFO_OBJECT (self,
|
|
"setting base crop: left:%d, right:%d, top:%d, bottom:%d",
|
|
self->base_crop_left, self->base_crop_right, self->base_crop_top,
|
|
self->base_crop_bottom);
|
|
g_object_set (G_OBJECT (self->src_zoom_crop),
|
|
"top", self->base_crop_top,
|
|
"bottom", self->base_crop_bottom,
|
|
"left", self->base_crop_left, "right", self->base_crop_right, NULL);
|
|
}
|
|
|
|
/* Update capsfilters */
|
|
if (self->image_capture_caps) {
|
|
gst_caps_unref (self->image_capture_caps);
|
|
}
|
|
self->image_capture_caps = gst_caps_new_full (new_st, NULL);
|
|
set_capsfilter_caps (self, self->image_capture_caps);
|
|
|
|
/* Adjust the capsfilter before crop and videoscale elements if necessary */
|
|
if (in_width == bcamsrc->width && in_height == bcamsrc->height) {
|
|
GST_DEBUG_OBJECT (self, "no adaptation with resolution needed");
|
|
} else {
|
|
GST_DEBUG_OBJECT (self,
|
|
"changing %" GST_PTR_FORMAT " from %dx%d to %dx%d", self->src_filter,
|
|
bcamsrc->width, bcamsrc->height, in_width, in_height);
|
|
/* Apply the width and height to filter caps */
|
|
g_object_get (G_OBJECT (self->src_filter), "caps", &filter_caps, NULL);
|
|
filter_caps = gst_caps_make_writable (filter_caps);
|
|
gst_caps_set_simple (filter_caps, "width", G_TYPE_INT, in_width, "height",
|
|
G_TYPE_INT, in_height, NULL);
|
|
g_object_set (G_OBJECT (self->src_filter), "caps", filter_caps, NULL);
|
|
gst_caps_unref (filter_caps);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* img_capture_prepared:
|
|
* @data: camerasrc object
|
|
* @caps: caps describing the prepared image format
|
|
*
|
|
* Callback which is called after image capture has been prepared.
|
|
*/
|
|
static void
|
|
img_capture_prepared (gpointer data, GstCaps * caps)
|
|
{
|
|
GstWrapperCameraBinSrc *self = GST_WRAPPER_CAMERA_BIN_SRC (data);
|
|
|
|
GST_INFO_OBJECT (self, "image capture prepared");
|
|
|
|
/* It is possible we are about to get something else that we requested */
|
|
if (!gst_caps_is_equal (self->image_capture_caps, caps)) {
|
|
adapt_image_capture (self, caps);
|
|
} else {
|
|
set_capsfilter_caps (self, self->image_capture_caps);
|
|
}
|
|
}
|
|
|
|
/**
|
|
*
|
|
*/
|
|
static gboolean
|
|
start_image_capture (GstWrapperCameraBinSrc * self)
|
|
{
|
|
GstBaseCameraSrc *bcamsrc = GST_BASE_CAMERA_SRC (self);
|
|
GstPhotography *photography = gst_base_camera_src_get_photography (bcamsrc);
|
|
gboolean ret = FALSE;
|
|
GstCaps *caps;
|
|
|
|
GST_DEBUG_OBJECT (self, "Starting image capture");
|
|
|
|
if (self->image_renegotiate) {
|
|
/* clean capsfilter caps so they don't interfere here */
|
|
g_object_set (self->src_filter, "caps", NULL, NULL);
|
|
if (self->src_zoom_filter)
|
|
g_object_set (self->src_zoom_filter, "caps", NULL, NULL);
|
|
|
|
caps = gst_pad_get_allowed_caps (self->imgsrc);
|
|
|
|
caps = gst_caps_make_writable (caps);
|
|
gst_pad_fixate_caps (self->imgsrc, caps);
|
|
|
|
gst_caps_replace (&self->image_capture_caps, caps);
|
|
gst_caps_unref (caps);
|
|
|
|
self->image_renegotiate = FALSE;
|
|
}
|
|
|
|
if (photography) {
|
|
GST_DEBUG_OBJECT (self, "prepare image capture caps %" GST_PTR_FORMAT,
|
|
self->image_capture_caps);
|
|
ret = gst_photography_prepare_for_capture (photography,
|
|
(GstPhotoCapturePrepared) img_capture_prepared,
|
|
self->image_capture_caps, self);
|
|
} else {
|
|
g_mutex_unlock (bcamsrc->capturing_mutex);
|
|
gst_wrapper_camera_bin_reset_video_src_caps (self,
|
|
self->image_capture_caps);
|
|
g_mutex_lock (bcamsrc->capturing_mutex);
|
|
ret = TRUE;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static gboolean
|
|
gst_wrapper_camera_bin_src_set_mode (GstBaseCameraSrc * bcamsrc,
|
|
GstCameraBinMode mode)
|
|
{
|
|
GstPhotography *photography = gst_base_camera_src_get_photography (bcamsrc);
|
|
GstWrapperCameraBinSrc *self = GST_WRAPPER_CAMERA_BIN_SRC (bcamsrc);
|
|
|
|
self->mode = mode;
|
|
|
|
if (self->output_selector) {
|
|
if (mode == MODE_IMAGE) {
|
|
g_object_set (self->output_selector, "active-pad", self->outsel_imgpad,
|
|
NULL);
|
|
} else {
|
|
g_object_set (self->output_selector, "active-pad", self->outsel_vidpad,
|
|
NULL);
|
|
}
|
|
}
|
|
|
|
if (photography) {
|
|
if (g_object_class_find_property (G_OBJECT_GET_CLASS (photography),
|
|
"capture-mode")) {
|
|
g_object_set (G_OBJECT (photography), "capture-mode", mode, NULL);
|
|
}
|
|
} else {
|
|
gst_wrapper_camera_bin_reset_video_src_caps (self, NULL);
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static gboolean
|
|
set_videosrc_zoom (GstWrapperCameraBinSrc * self, gint zoom)
|
|
{
|
|
gboolean ret = FALSE;
|
|
|
|
if (g_object_class_find_property (G_OBJECT_GET_CLASS (self->src_vid_src),
|
|
"zoom")) {
|
|
g_object_set (G_OBJECT (self->src_vid_src), "zoom",
|
|
(gfloat) zoom / 100, NULL);
|
|
ret = TRUE;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
static gboolean
|
|
set_element_zoom (GstWrapperCameraBinSrc * self, gint zoom)
|
|
{
|
|
gboolean ret = FALSE;
|
|
GstBaseCameraSrc *bcamsrc = GST_BASE_CAMERA_SRC (self);
|
|
gint w2_crop = 0, h2_crop = 0;
|
|
GstPad *pad_zoom_sink = NULL;
|
|
gint left = self->base_crop_left;
|
|
gint right = self->base_crop_right;
|
|
gint top = self->base_crop_top;
|
|
gint bottom = self->base_crop_bottom;
|
|
|
|
if (self->src_zoom_crop) {
|
|
/* Update capsfilters to apply the zoom */
|
|
GST_INFO_OBJECT (self, "zoom: %d, orig size: %dx%d", zoom,
|
|
bcamsrc->width, bcamsrc->height);
|
|
|
|
if (zoom != ZOOM_1X) {
|
|
w2_crop = (bcamsrc->width - (bcamsrc->width * ZOOM_1X / zoom)) / 2;
|
|
h2_crop = (bcamsrc->height - (bcamsrc->height * ZOOM_1X / zoom)) / 2;
|
|
|
|
left += w2_crop;
|
|
right += w2_crop;
|
|
top += h2_crop;
|
|
bottom += h2_crop;
|
|
|
|
/* force number of pixels cropped from left to be even, to avoid slow code
|
|
* path on videoscale */
|
|
left &= 0xFFFE;
|
|
}
|
|
|
|
pad_zoom_sink = gst_element_get_static_pad (self->src_zoom_crop, "sink");
|
|
|
|
GST_INFO_OBJECT (self,
|
|
"sw cropping: left:%d, right:%d, top:%d, bottom:%d", left, right, top,
|
|
bottom);
|
|
|
|
GST_PAD_STREAM_LOCK (pad_zoom_sink);
|
|
g_object_set (self->src_zoom_crop, "left", left, "right", right, "top",
|
|
top, "bottom", bottom, NULL);
|
|
GST_PAD_STREAM_UNLOCK (pad_zoom_sink);
|
|
gst_object_unref (pad_zoom_sink);
|
|
ret = TRUE;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
static void
|
|
gst_wrapper_camera_bin_src_set_zoom (GstBaseCameraSrc * bcamsrc, gint zoom)
|
|
{
|
|
GstWrapperCameraBinSrc *self = GST_WRAPPER_CAMERA_BIN_SRC (bcamsrc);
|
|
|
|
GST_INFO_OBJECT (self, "setting zoom %d", zoom);
|
|
|
|
if (set_videosrc_zoom (self, zoom)) {
|
|
set_element_zoom (self, ZOOM_1X);
|
|
GST_INFO_OBJECT (self, "zoom set using videosrc");
|
|
} else if (set_element_zoom (self, zoom)) {
|
|
GST_INFO_OBJECT (self, "zoom set using gst elements");
|
|
} else {
|
|
GST_INFO_OBJECT (self, "setting zoom failed");
|
|
}
|
|
}
|
|
|
|
static GstCaps *
|
|
gst_wrapper_camera_bin_src_get_allowed_input_caps (GstBaseCameraSrc * bcamsrc)
|
|
{
|
|
GstWrapperCameraBinSrc *self = GST_WRAPPER_CAMERA_BIN_SRC (bcamsrc);
|
|
GstCaps *caps = NULL;
|
|
GstPad *pad = NULL, *peer_pad = NULL;
|
|
GstState state;
|
|
GstElement *videosrc;
|
|
|
|
videosrc = self->src_vid_src ? self->src_vid_src : self->app_vid_src;
|
|
|
|
if (!videosrc) {
|
|
GST_WARNING_OBJECT (self, "no videosrc, can't get allowed caps");
|
|
goto failed;
|
|
}
|
|
|
|
if (self->allowed_caps) {
|
|
GST_DEBUG_OBJECT (self, "returning cached caps");
|
|
goto done;
|
|
}
|
|
|
|
pad = gst_element_get_static_pad (videosrc, "src");
|
|
|
|
if (!pad) {
|
|
GST_WARNING_OBJECT (self, "no srcpad in videosrc");
|
|
goto failed;
|
|
}
|
|
|
|
state = GST_STATE (videosrc);
|
|
|
|
/* Make this function work also in NULL state */
|
|
if (state == GST_STATE_NULL) {
|
|
GST_DEBUG_OBJECT (self, "setting videosrc to ready temporarily");
|
|
peer_pad = gst_pad_get_peer (pad);
|
|
if (peer_pad) {
|
|
gst_pad_unlink (pad, peer_pad);
|
|
}
|
|
/* Set videosrc to READY to open video device */
|
|
gst_element_set_locked_state (videosrc, TRUE);
|
|
gst_element_set_state (videosrc, GST_STATE_READY);
|
|
}
|
|
|
|
self->allowed_caps = gst_pad_get_caps (pad);
|
|
|
|
/* Restore state and re-link if necessary */
|
|
if (state == GST_STATE_NULL) {
|
|
GST_DEBUG_OBJECT (self, "restoring videosrc state %d", state);
|
|
/* Reset videosrc to NULL state, some drivers seem to need this */
|
|
gst_element_set_state (videosrc, GST_STATE_NULL);
|
|
if (peer_pad) {
|
|
gst_pad_link (pad, peer_pad);
|
|
gst_object_unref (peer_pad);
|
|
}
|
|
gst_element_set_locked_state (videosrc, FALSE);
|
|
}
|
|
|
|
gst_object_unref (pad);
|
|
|
|
done:
|
|
if (self->allowed_caps) {
|
|
caps = gst_caps_copy (self->allowed_caps);
|
|
}
|
|
GST_DEBUG_OBJECT (self, "allowed caps:%" GST_PTR_FORMAT, caps);
|
|
failed:
|
|
return caps;
|
|
}
|
|
|
|
/**
|
|
* update_aspect_filter:
|
|
* @self: camerasrc object
|
|
* @new_caps: new caps of next buffers arriving to view finder sink element
|
|
*
|
|
* Updates aspect ratio capsfilter to maintain aspect ratio, if we need to
|
|
* scale frames for showing them in view finder.
|
|
*/
|
|
static void
|
|
update_aspect_filter (GstWrapperCameraBinSrc * self, GstCaps * new_caps)
|
|
{
|
|
// XXX why not instead add a preserve-aspect-ratio property to videoscale?
|
|
#if 0
|
|
if (camera->flags & GST_CAMERABIN_FLAG_VIEWFINDER_SCALE) {
|
|
GstCaps *sink_caps, *ar_caps;
|
|
GstStructure *st;
|
|
gint in_w = 0, in_h = 0, sink_w = 0, sink_h = 0, target_w = 0, target_h = 0;
|
|
gdouble ratio_w, ratio_h;
|
|
GstPad *sink_pad;
|
|
const GValue *range;
|
|
|
|
sink_pad = gst_element_get_static_pad (camera->view_sink, "sink");
|
|
|
|
if (sink_pad) {
|
|
sink_caps = gst_pad_get_caps (sink_pad);
|
|
gst_object_unref (sink_pad);
|
|
if (sink_caps) {
|
|
if (!gst_caps_is_any (sink_caps)) {
|
|
GST_DEBUG_OBJECT (camera, "sink element caps %" GST_PTR_FORMAT,
|
|
sink_caps);
|
|
/* Get maximum resolution that view finder sink accepts */
|
|
st = gst_caps_get_structure (sink_caps, 0);
|
|
if (gst_structure_has_field_typed (st, "width", GST_TYPE_INT_RANGE)) {
|
|
range = gst_structure_get_value (st, "width");
|
|
sink_w = gst_value_get_int_range_max (range);
|
|
}
|
|
if (gst_structure_has_field_typed (st, "height", GST_TYPE_INT_RANGE)) {
|
|
range = gst_structure_get_value (st, "height");
|
|
sink_h = gst_value_get_int_range_max (range);
|
|
}
|
|
GST_DEBUG_OBJECT (camera, "sink element accepts max %dx%d", sink_w,
|
|
sink_h);
|
|
|
|
/* Get incoming frames' resolution */
|
|
if (sink_h && sink_w) {
|
|
st = gst_caps_get_structure (new_caps, 0);
|
|
gst_structure_get_int (st, "width", &in_w);
|
|
gst_structure_get_int (st, "height", &in_h);
|
|
GST_DEBUG_OBJECT (camera, "new caps with %dx%d", in_w, in_h);
|
|
}
|
|
}
|
|
gst_caps_unref (sink_caps);
|
|
}
|
|
}
|
|
|
|
/* If we get bigger frames than view finder sink accepts, then we scale.
|
|
If we scale we need to adjust aspect ratio capsfilter caps in order
|
|
to maintain aspect ratio while scaling. */
|
|
if (in_w && in_h && (in_w > sink_w || in_h > sink_h)) {
|
|
ratio_w = (gdouble) sink_w / in_w;
|
|
ratio_h = (gdouble) sink_h / in_h;
|
|
|
|
if (ratio_w < ratio_h) {
|
|
target_w = sink_w;
|
|
target_h = (gint) (ratio_w * in_h);
|
|
} else {
|
|
target_w = (gint) (ratio_h * in_w);
|
|
target_h = sink_h;
|
|
}
|
|
|
|
GST_DEBUG_OBJECT (camera, "setting %dx%d filter to maintain aspect ratio",
|
|
target_w, target_h);
|
|
ar_caps = gst_caps_copy (new_caps);
|
|
gst_caps_set_simple (ar_caps, "width", G_TYPE_INT, target_w, "height",
|
|
G_TYPE_INT, target_h, NULL);
|
|
} else {
|
|
GST_DEBUG_OBJECT (camera, "no scaling");
|
|
ar_caps = new_caps;
|
|
}
|
|
|
|
GST_DEBUG_OBJECT (camera, "aspect ratio filter caps %" GST_PTR_FORMAT,
|
|
ar_caps);
|
|
g_object_set (G_OBJECT (camera->aspect_filter), "caps", ar_caps, NULL);
|
|
if (ar_caps != new_caps)
|
|
gst_caps_unref (ar_caps);
|
|
}
|
|
#endif
|
|
}
|
|
|
|
|
|
/**
|
|
* set_capsfilter_caps:
|
|
* @self: camerasrc object
|
|
* @new_caps: pointer to caps object to set
|
|
*
|
|
* Set given caps to camerabin capsfilters.
|
|
*/
|
|
static void
|
|
set_capsfilter_caps (GstWrapperCameraBinSrc * self, GstCaps * new_caps)
|
|
{
|
|
GST_INFO_OBJECT (self, "new_caps:%" GST_PTR_FORMAT, new_caps);
|
|
|
|
/* Update zoom */
|
|
gst_base_camera_src_setup_zoom (GST_BASE_CAMERA_SRC (self));
|
|
|
|
/* Update capsfilters */
|
|
g_object_set (G_OBJECT (self->src_filter), "caps", new_caps, NULL);
|
|
if (self->src_zoom_filter)
|
|
g_object_set (G_OBJECT (self->src_zoom_filter), "caps", new_caps, NULL);
|
|
update_aspect_filter (self, new_caps);
|
|
GST_INFO_OBJECT (self, "udpated");
|
|
}
|
|
|
|
static gboolean
|
|
gst_wrapper_camera_bin_src_start_capture (GstBaseCameraSrc * camerasrc)
|
|
{
|
|
GstWrapperCameraBinSrc *src = GST_WRAPPER_CAMERA_BIN_SRC (camerasrc);
|
|
|
|
/* TODO should we access this directly? Maybe a macro is better? */
|
|
if (src->mode == MODE_IMAGE) {
|
|
start_image_capture (src);
|
|
src->image_capture_count = 1;
|
|
} else if (src->mode == MODE_VIDEO) {
|
|
GstCaps *caps = NULL;
|
|
|
|
g_mutex_unlock (camerasrc->capturing_mutex);
|
|
gst_wrapper_camera_bin_reset_video_src_caps (src, NULL);
|
|
g_mutex_lock (camerasrc->capturing_mutex);
|
|
|
|
if (src->video_renegotiate) {
|
|
/* clean capsfilter caps so they don't interfere here */
|
|
g_object_set (src->src_filter, "caps", NULL, NULL);
|
|
if (src->src_zoom_filter)
|
|
g_object_set (src->src_zoom_filter, "caps", NULL, NULL);
|
|
|
|
caps = gst_pad_get_allowed_caps (src->vidsrc);
|
|
caps = gst_caps_make_writable (caps);
|
|
gst_pad_fixate_caps (src->vidsrc, caps);
|
|
GST_DEBUG_OBJECT (src, "Vidsrc caps fixated to %" GST_PTR_FORMAT, caps);
|
|
|
|
src->video_renegotiate = FALSE;
|
|
g_mutex_unlock (camerasrc->capturing_mutex);
|
|
gst_wrapper_camera_bin_reset_video_src_caps (src, caps);
|
|
g_mutex_lock (camerasrc->capturing_mutex);
|
|
gst_caps_unref (caps);
|
|
}
|
|
if (src->video_rec_status == GST_VIDEO_RECORDING_STATUS_DONE) {
|
|
src->video_rec_status = GST_VIDEO_RECORDING_STATUS_STARTING;
|
|
}
|
|
} else {
|
|
g_assert_not_reached ();
|
|
return FALSE;
|
|
}
|
|
return TRUE;
|
|
}
|
|
|
|
static void
|
|
gst_wrapper_camera_bin_src_stop_capture (GstBaseCameraSrc * camerasrc)
|
|
{
|
|
GstWrapperCameraBinSrc *src = GST_WRAPPER_CAMERA_BIN_SRC (camerasrc);
|
|
|
|
/* TODO shoud we access this directly? Maybe a macro is better? */
|
|
if (src->mode == MODE_VIDEO) {
|
|
if (src->video_rec_status == GST_VIDEO_RECORDING_STATUS_STARTING) {
|
|
GST_DEBUG_OBJECT (src, "Aborting, had not started recording");
|
|
src->video_rec_status = GST_VIDEO_RECORDING_STATUS_DONE;
|
|
|
|
} else if (src->video_rec_status == GST_VIDEO_RECORDING_STATUS_RUNNING) {
|
|
GST_DEBUG_OBJECT (src, "Marking video recording as finishing");
|
|
src->video_rec_status = GST_VIDEO_RECORDING_STATUS_FINISHING;
|
|
}
|
|
} else {
|
|
src->image_capture_count = 0;
|
|
}
|
|
}
|
|
|
|
static GstStateChangeReturn
|
|
gst_wrapper_camera_bin_src_change_state (GstElement * element,
|
|
GstStateChange trans)
|
|
{
|
|
GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
|
|
GstWrapperCameraBinSrc *self = GST_WRAPPER_CAMERA_BIN_SRC (element);
|
|
|
|
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, trans);
|
|
|
|
if (ret == GST_STATE_CHANGE_FAILURE)
|
|
goto end;
|
|
|
|
switch (trans) {
|
|
case GST_STATE_CHANGE_READY_TO_NULL:
|
|
gst_element_set_state (self->preview_pipeline->pipeline, GST_STATE_NULL);
|
|
break;
|
|
case GST_STATE_CHANGE_NULL_TO_READY:
|
|
gst_element_set_state (self->preview_pipeline->pipeline,
|
|
GST_STATE_PLAYING);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
end:
|
|
return ret;
|
|
}
|
|
|
|
static void
|
|
gst_wrapper_camera_bin_src_base_init (gpointer g_class)
|
|
{
|
|
GstElementClass *gstelement_class = GST_ELEMENT_CLASS (g_class);
|
|
|
|
GST_DEBUG_CATEGORY_INIT (wrapper_camera_bin_src_debug, "wrappercamerabinsrc",
|
|
0, "V4l2 camera src");
|
|
|
|
gst_element_class_set_details_simple (gstelement_class,
|
|
"V4l2 camera src element for camerabin", "Source/Video",
|
|
"V4l2 camera src element for camerabin", "Rob Clark <rob@ti.com>");
|
|
}
|
|
|
|
static void
|
|
gst_wrapper_camera_bin_src_class_init (GstWrapperCameraBinSrcClass * klass)
|
|
{
|
|
GObjectClass *gobject_class;
|
|
GstElementClass *gstelement_class;
|
|
GstBaseCameraSrcClass *gstbasecamerasrc_class;
|
|
|
|
gobject_class = G_OBJECT_CLASS (klass);
|
|
gstelement_class = GST_ELEMENT_CLASS (klass);
|
|
gstbasecamerasrc_class = GST_BASE_CAMERA_SRC_CLASS (klass);
|
|
|
|
gobject_class->dispose = gst_wrapper_camera_bin_src_dispose;
|
|
gobject_class->finalize =
|
|
(GObjectFinalizeFunc) gst_wrapper_camera_bin_src_finalize;
|
|
gobject_class->set_property = gst_wrapper_camera_bin_src_set_property;
|
|
gobject_class->get_property = gst_wrapper_camera_bin_src_get_property;
|
|
|
|
/* g_object_class_install_property .... */
|
|
g_object_class_install_property (gobject_class, PROP_VIDEO_SRC,
|
|
g_param_spec_object ("video-src", "Video source",
|
|
"The video source element to be used",
|
|
GST_TYPE_ELEMENT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
|
|
|
|
g_object_class_install_property (gobject_class, PROP_POST_PREVIEWS,
|
|
g_param_spec_boolean ("post-previews", "Post Previews",
|
|
"If capture preview images should be posted to the bus",
|
|
DEFAULT_POST_PREVIEWS, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
|
|
|
|
g_object_class_install_property (gobject_class, PROP_PREVIEW_CAPS,
|
|
g_param_spec_boxed ("preview-caps", "Preview caps",
|
|
"The caps of the preview image to be posted",
|
|
GST_TYPE_CAPS, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
|
|
|
|
gstelement_class->change_state = gst_wrapper_camera_bin_src_change_state;
|
|
|
|
gstbasecamerasrc_class->construct_pipeline =
|
|
gst_wrapper_camera_bin_src_construct_pipeline;
|
|
gstbasecamerasrc_class->set_zoom = gst_wrapper_camera_bin_src_set_zoom;
|
|
gstbasecamerasrc_class->set_mode = gst_wrapper_camera_bin_src_set_mode;
|
|
gstbasecamerasrc_class->get_allowed_input_caps =
|
|
gst_wrapper_camera_bin_src_get_allowed_input_caps;
|
|
gstbasecamerasrc_class->start_capture =
|
|
gst_wrapper_camera_bin_src_start_capture;
|
|
gstbasecamerasrc_class->stop_capture =
|
|
gst_wrapper_camera_bin_src_stop_capture;
|
|
}
|
|
|
|
static void
|
|
gst_wrapper_camera_bin_src_init (GstWrapperCameraBinSrc * self,
|
|
GstWrapperCameraBinSrcClass * klass)
|
|
{
|
|
self->vfsrc =
|
|
gst_ghost_pad_new_no_target (GST_BASE_CAMERA_SRC_VIEWFINDER_PAD_NAME,
|
|
GST_PAD_SRC);
|
|
gst_element_add_pad (GST_ELEMENT (self), self->vfsrc);
|
|
|
|
self->imgsrc =
|
|
gst_ghost_pad_new_no_target (GST_BASE_CAMERA_SRC_IMAGE_PAD_NAME,
|
|
GST_PAD_SRC);
|
|
gst_element_add_pad (GST_ELEMENT (self), self->imgsrc);
|
|
|
|
self->vidsrc =
|
|
gst_ghost_pad_new_no_target (GST_BASE_CAMERA_SRC_VIDEO_PAD_NAME,
|
|
GST_PAD_SRC);
|
|
gst_element_add_pad (GST_ELEMENT (self), self->vidsrc);
|
|
|
|
self->srcpad_event_func = GST_PAD_EVENTFUNC (self->vfsrc);
|
|
|
|
gst_pad_set_event_function (self->imgsrc, gst_wrapper_camera_bin_src_event);
|
|
gst_pad_set_event_function (self->vidsrc, gst_wrapper_camera_bin_src_event);
|
|
gst_pad_set_event_function (self->vfsrc, gst_wrapper_camera_bin_src_event);
|
|
|
|
/* TODO where are variables reset? */
|
|
self->image_capture_count = 0;
|
|
self->video_rec_status = GST_VIDEO_RECORDING_STATUS_DONE;
|
|
self->video_renegotiate = FALSE;
|
|
self->image_renegotiate = FALSE;
|
|
self->mode = GST_BASE_CAMERA_SRC_CAST (self)->mode;
|
|
self->post_previews = DEFAULT_POST_PREVIEWS;
|
|
}
|
|
|
|
gboolean
|
|
gst_wrapper_camera_bin_src_plugin_init (GstPlugin * plugin)
|
|
{
|
|
return gst_element_register (plugin, "wrappercamerabinsrc", GST_RANK_NONE,
|
|
gst_wrapper_camera_bin_src_get_type ());
|
|
}
|