Update
This commit is contained in:
Akkariin Meiko
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/*
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* GStreamer
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* Copyright (C) 2008-2009 Julien Isorce <julien.isorce@gmail.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#include <gst/gst.h>
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#include <gst/gl/gl.h>
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#include <gst/gl/gstglfuncs.h>
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#include <iostream>
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#include <sstream>
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#include <string>
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static gboolean bus_call (GstBus *bus, GstMessage *msg, gpointer data)
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{
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GMainLoop *loop = (GMainLoop*)data;
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switch (GST_MESSAGE_TYPE (msg))
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{
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case GST_MESSAGE_EOS:
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g_print ("End-of-stream\n");
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g_main_loop_quit (loop);
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break;
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case GST_MESSAGE_ERROR:
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{
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gchar *debug = NULL;
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GError *err = NULL;
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gst_message_parse_error (msg, &err, &debug);
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g_print ("Error: %s\n", err->message);
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g_error_free (err);
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if (debug)
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{
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g_print ("Debug details: %s\n", debug);
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g_free (debug);
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}
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g_main_loop_quit (loop);
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break;
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}
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default:
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break;
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}
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return TRUE;
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}
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//display video framerate
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static GstPadProbeReturn textoverlay_sink_pad_probe_cb (GstPad *pad, GstPadProbeInfo *info, GstElement* textoverlay)
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{
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static GstClockTime last_timestamp = 0;
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static gint nbFrames = 0 ;
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//display estimated video FPS
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nbFrames++ ;
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if (GST_BUFFER_TIMESTAMP(info->data) - last_timestamp >= 1000000000)
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{
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gchar *s = g_strdup_printf ("video framerate = %d", nbFrames);
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g_object_set(G_OBJECT(textoverlay), "text", s, NULL);
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g_free (s);
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last_timestamp = GST_BUFFER_TIMESTAMP(info->data) ;
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nbFrames = 0;
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}
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return GST_PAD_PROBE_OK;
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}
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//client reshape callback
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static gboolean reshapeCallback (void *gl_sink, void *context, GLuint width, GLuint height)
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{
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glViewport(0, 0, width, height);
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glMatrixMode(GL_PROJECTION);
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glLoadIdentity();
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glMatrixMode(GL_MODELVIEW);
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return TRUE;
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}
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//client draw callback
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static gboolean drawCallback (GstElement * gl_sink, GstGLContext *context, GstSample * sample, gpointer data)
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{
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static GLfloat xrot = 0;
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static GLfloat yrot = 0;
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static GLfloat zrot = 0;
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static GstClockTime current_time;
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static GstClockTime last_time = gst_util_get_timestamp();
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static gint nbFrames = 0;
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GstVideoFrame v_frame;
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GstVideoInfo v_info;
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guint texture = 0;
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GstBuffer *buf = gst_sample_get_buffer (sample);
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GstCaps *caps = gst_sample_get_caps (sample);
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gst_video_info_from_caps (&v_info, caps);
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if (!gst_video_frame_map (&v_frame, &v_info, buf, (GstMapFlags) (GST_MAP_READ | GST_MAP_GL))) {
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g_warning ("Failed to map the video buffer");
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return TRUE;
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}
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texture = *(guint *) v_frame.data[0];
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current_time = gst_util_get_timestamp ();
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nbFrames++ ;
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if ((current_time - last_time) >= GST_SECOND)
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{
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std::cout << "GRAPHIC FPS of the scene which contains the custom cube) = " << nbFrames << std::endl;
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nbFrames = 0;
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last_time = current_time;
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}
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glEnable(GL_DEPTH_TEST);
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glEnable (GL_TEXTURE_2D);
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glBindTexture (GL_TEXTURE_2D, texture);
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glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
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glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
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glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
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glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
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glTexEnvi (GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
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glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
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glMatrixMode(GL_MODELVIEW);
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glLoadIdentity();
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glTranslatef(0.0f,0.0f,-5.0f);
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glRotatef(xrot,1.0f,0.0f,0.0f);
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glRotatef(yrot,0.0f,1.0f,0.0f);
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glRotatef(zrot,0.0f,0.0f,1.0f);
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glBegin(GL_QUADS);
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// Front Face
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glTexCoord2f(1.0f, 0.0f); glVertex3f(-1.0f, -1.0f, 1.0f);
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glTexCoord2f(0.0f, 0.0f); glVertex3f( 1.0f, -1.0f, 1.0f);
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glTexCoord2f(0.0f, 1.0f); glVertex3f( 1.0f, 1.0f, 1.0f);
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glTexCoord2f(1.0f, 1.0f); glVertex3f(-1.0f, 1.0f, 1.0f);
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// Back Face
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glTexCoord2f(0.0f, 0.0f); glVertex3f(-1.0f, -1.0f, -1.0f);
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glTexCoord2f(0.0f, 1.0f); glVertex3f(-1.0f, 1.0f, -1.0f);
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glTexCoord2f(1.0f, 1.0f); glVertex3f( 1.0f, 1.0f, -1.0f);
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glTexCoord2f(1.0f, 0.0f); glVertex3f( 1.0f, -1.0f, -1.0f);
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// Top Face
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glTexCoord2f(1.0f, 1.0f); glVertex3f(-1.0f, 1.0f, -1.0f);
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glTexCoord2f(1.0f, 0.0f); glVertex3f(-1.0f, 1.0f, 1.0f);
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glTexCoord2f(0.0f, 0.0f); glVertex3f( 1.0f, 1.0f, 1.0f);
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glTexCoord2f(0.0f, 1.0f); glVertex3f( 1.0f, 1.0f, -1.0f);
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// Bottom Face
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glTexCoord2f(1.0f, 0.0f); glVertex3f(-1.0f, -1.0f, -1.0f);
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glTexCoord2f(0.0f, 0.0f); glVertex3f( 1.0f, -1.0f, -1.0f);
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glTexCoord2f(0.0f, 1.0f); glVertex3f( 1.0f, -1.0f, 1.0f);
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glTexCoord2f(1.0f, 1.0f); glVertex3f(-1.0f, -1.0f, 1.0f);
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// Right face
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glTexCoord2f(0.0f, 0.0f); glVertex3f( 1.0f, -1.0f, -1.0f);
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glTexCoord2f(0.0f, 1.0f); glVertex3f( 1.0f, 1.0f, -1.0f);
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glTexCoord2f(1.0f, 1.0f); glVertex3f( 1.0f, 1.0f, 1.0f);
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glTexCoord2f(1.0f, 0.0f); glVertex3f( 1.0f, -1.0f, 1.0f);
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// Left Face
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glTexCoord2f(1.0f, 0.0f); glVertex3f(-1.0f, -1.0f, -1.0f);
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glTexCoord2f(0.0f, 0.0f); glVertex3f(-1.0f, -1.0f, 1.0f);
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glTexCoord2f(0.0f, 1.0f); glVertex3f(-1.0f, 1.0f, 1.0f);
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glTexCoord2f(1.0f, 1.0f); glVertex3f(-1.0f, 1.0f, -1.0f);
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glEnd();
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gst_video_frame_unmap (&v_frame);
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xrot+=0.03f;
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yrot+=0.02f;
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zrot+=0.04f;
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return TRUE;
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}
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static void cb_new_pad (GstElement* decodebin, GstPad* pad, GstElement* element)
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{
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GstPad* element_pad = gst_element_get_static_pad (element, "sink");
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//only link once
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if (!element_pad || GST_PAD_IS_LINKED (element_pad))
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{
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gst_object_unref (element_pad);
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return;
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}
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GstCaps* caps = gst_pad_get_current_caps (pad);
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GstStructure* str = gst_caps_get_structure (caps, 0);
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GstCaps* caps2 = gst_pad_query_caps (element_pad, NULL);
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gst_caps_unref (caps2);
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if (!g_strrstr (gst_structure_get_name (str), "video"))
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{
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gst_caps_unref (caps);
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gst_object_unref (element_pad);
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return;
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}
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gst_caps_unref (caps);
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GstPadLinkReturn ret = gst_pad_link (pad, element_pad);
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if (ret != GST_PAD_LINK_OK)
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g_warning ("Failed to link with decodebin %d!\n", ret);
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gst_object_unref (element_pad);
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}
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gint main (gint argc, gchar *argv[])
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{
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if (argc != 2)
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{
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g_warning ("usage: doublecube.exe videolocation\n");
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return -1;
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}
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std::string video_location(argv[1]);
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/* initialization */
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gst_init (&argc, &argv);
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GMainLoop* loop = g_main_loop_new (NULL, FALSE);
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/* create elements */
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GstElement* pipeline = gst_pipeline_new ("pipeline");
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/* watch for messages on the pipeline's bus (note that this will only
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* work like this when a GLib main loop is running) */
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GstBus* bus = gst_pipeline_get_bus (GST_PIPELINE (pipeline));
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gst_bus_add_watch (bus, bus_call, loop);
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gst_object_unref (bus);
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/* create elements */
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GstElement* videosrc = gst_element_factory_make ("filesrc", "filesrc0");
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GstElement* decodebin = gst_element_factory_make ("decodebin", "decodebin0");
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GstElement* videoconvert = gst_element_factory_make ("videoscale", "videoconvert0");
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GstElement* textoverlay = gst_element_factory_make ("textoverlay", "textoverlay0"); //textoverlay required I420
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GstElement* tee = gst_element_factory_make ("tee", "tee0");
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GstElement* queue0 = gst_element_factory_make ("queue", "queue0");
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GstElement* glimagesink0 = gst_element_factory_make ("glimagesink", "glimagesink0");
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GstElement* queue1 = gst_element_factory_make ("queue", "queue1");
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GstElement* glfiltercube = gst_element_factory_make ("glfiltercube", "glfiltercube");
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GstElement* glimagesink1 = gst_element_factory_make ("glimagesink", "glimagesink1");
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GstElement* queue2 = gst_element_factory_make ("queue", "queue2");
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GstElement* glimagesink2 = gst_element_factory_make ("glimagesink", "glimagesink2");
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if (!videosrc || !decodebin || !videoconvert || !textoverlay || !tee ||
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!queue0 || !glimagesink0 ||
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!queue1 || !glfiltercube || !glimagesink1 ||
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!queue2 || !glimagesink2)
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{
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g_warning ("one element could not be found \n");
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return -1;
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}
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GstCaps* cubecaps = gst_caps_new_simple("video/x-raw",
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"width", G_TYPE_INT, 600,
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"height", G_TYPE_INT, 400,
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NULL);
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/* configure elements */
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g_object_set(G_OBJECT(videosrc), "num-buffers", 1000, NULL);
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g_object_set(G_OBJECT(videosrc), "location", video_location.c_str(), NULL);
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g_object_set(G_OBJECT(textoverlay), "font_desc", "Ahafoni CLM Bold 30", NULL);
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g_signal_connect(G_OBJECT(glimagesink0), "client-reshape", G_CALLBACK (reshapeCallback), NULL);
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g_signal_connect(G_OBJECT(glimagesink0), "client-draw", G_CALLBACK (drawCallback), NULL);
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/* add elements */
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gst_bin_add_many (GST_BIN (pipeline), videosrc, decodebin, videoconvert, textoverlay, tee,
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queue0, glimagesink0,
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queue1, glfiltercube, glimagesink1,
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queue2, glimagesink2, NULL);
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GstPad* textoverlay_sink_pad = gst_element_get_static_pad (textoverlay, "video_sink");
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gst_pad_add_probe (textoverlay_sink_pad, GST_PAD_PROBE_TYPE_BUFFER,
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(GstPadProbeCallback) textoverlay_sink_pad_probe_cb, (gpointer)textoverlay, NULL);
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gst_object_unref (textoverlay_sink_pad);
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if (!gst_element_link_many(videoconvert, textoverlay, tee, NULL))
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{
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g_print ("Failed to link videoconvert to tee!\n");
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return -1;
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}
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if (!gst_element_link(videosrc, decodebin))
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{
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g_print ("Failed to link videosrc to decodebin!\n");
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return -1;
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}
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g_signal_connect (decodebin, "pad-added", G_CALLBACK (cb_new_pad), videoconvert);
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if (!gst_element_link_many(tee, queue0, NULL))
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{
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g_warning ("Failed to link one or more elements bettween tee and queue0!\n");
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return -1;
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}
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gboolean link_ok = gst_element_link_filtered(queue0, glimagesink0, cubecaps) ;
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gst_caps_unref(cubecaps) ;
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if(!link_ok)
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{
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g_warning("Failed to link queue0 to glimagesink0!\n") ;
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return -1 ;
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}
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if (!gst_element_link_many(tee, queue1, glfiltercube, glimagesink1, NULL))
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{
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g_warning ("Failed to link one or more elements bettween tee and glimagesink1!\n");
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return -1;
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}
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if (!gst_element_link_many(tee, queue2, glimagesink2, NULL))
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{
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g_warning ("Failed to link one or more elements bettween tee and glimagesink2!\n");
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return -1;
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}
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/* run */
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GstStateChangeReturn ret = gst_element_set_state (pipeline, GST_STATE_PLAYING);
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if (ret == GST_STATE_CHANGE_FAILURE)
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{
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g_print ("Failed to start up pipeline!\n");
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/* check if there is an error message with details on the bus */
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GstMessage* msg = gst_bus_poll (bus, GST_MESSAGE_ERROR, 0);
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if (msg)
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{
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GError *err = NULL;
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gst_message_parse_error (msg, &err, NULL);
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g_print ("ERROR: %s\n", err->message);
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g_error_free (err);
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gst_message_unref (msg);
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}
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return -1;
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}
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g_main_loop_run (loop);
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/* clean up */
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gst_element_set_state (pipeline, GST_STATE_NULL);
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gst_object_unref (pipeline);
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return 0;
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}
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