mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-12-22 00:06:36 +00:00
199f9bd194
translating outside the clip region doesn't work
261 lines
8.3 KiB
C++
261 lines
8.3 KiB
C++
/*
|
|
* GStreamer
|
|
* Copyright (C) 2008-2009 Julien Isorce <julien.isorce@gmail.com>
|
|
*
|
|
* 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., 51 Franklin St, Fifth Floor,
|
|
* Boston, MA 02110-1301, USA.
|
|
*/
|
|
|
|
#include <gst/gst.h>
|
|
#include <gst/gl/gl.h>
|
|
|
|
#include <iostream>
|
|
#include <string>
|
|
|
|
static gboolean bus_call (GstBus *bus, GstMessage *msg, gpointer data)
|
|
{
|
|
GMainLoop *loop = (GMainLoop*)data;
|
|
|
|
switch (GST_MESSAGE_TYPE (msg))
|
|
{
|
|
case GST_MESSAGE_EOS:
|
|
g_print ("End-of-stream\n");
|
|
g_main_loop_quit (loop);
|
|
break;
|
|
case GST_MESSAGE_ERROR:
|
|
{
|
|
gchar *debug = NULL;
|
|
GError *err = NULL;
|
|
|
|
gst_message_parse_error (msg, &err, &debug);
|
|
|
|
g_print ("Error: %s\n", err->message);
|
|
g_error_free (err);
|
|
|
|
if (debug)
|
|
{
|
|
g_print ("Debug deails: %s\n", debug);
|
|
g_free (debug);
|
|
}
|
|
|
|
g_main_loop_quit (loop);
|
|
break;
|
|
}
|
|
default:
|
|
break;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
//client reshape callback
|
|
static gboolean reshapeCallback (void *gl_sink, void *context, GLuint width, GLuint height, gpointer data)
|
|
{
|
|
glViewport(0, 0, width, height);
|
|
glMatrixMode(GL_PROJECTION);
|
|
glLoadIdentity();
|
|
glMatrixMode(GL_MODELVIEW);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
//client draw callback
|
|
static gboolean drawCallback (GstElement * gl_sink, GstGLContext *context, GstSample * sample, gpointer data)
|
|
{
|
|
static GLfloat xrot = 0;
|
|
static GLfloat yrot = 0;
|
|
static GLfloat zrot = 0;
|
|
static GTimeVal current_time;
|
|
static glong last_sec = current_time.tv_sec;
|
|
static gint nbFrames = 0;
|
|
|
|
GstVideoFrame v_frame;
|
|
GstVideoInfo v_info;
|
|
guint texture = 0;
|
|
GstBuffer *buf = gst_sample_get_buffer (sample);
|
|
GstCaps *caps = gst_sample_get_caps (sample);
|
|
|
|
gst_video_info_from_caps (&v_info, caps);
|
|
|
|
if (!gst_video_frame_map (&v_frame, &v_info, buf, (GstMapFlags) (GST_MAP_READ | GST_MAP_GL))) {
|
|
g_warning ("Failed to map the video buffer");
|
|
return TRUE;
|
|
}
|
|
|
|
texture = *(guint *) v_frame.data[0];
|
|
|
|
g_get_current_time (¤t_time);
|
|
nbFrames++ ;
|
|
|
|
if ((current_time.tv_sec - last_sec) >= 1)
|
|
{
|
|
std::cout << "GRPHIC FPS = " << nbFrames << std::endl;
|
|
nbFrames = 0;
|
|
last_sec = current_time.tv_sec;
|
|
}
|
|
|
|
glEnable(GL_DEPTH_TEST);
|
|
|
|
glEnable (GL_TEXTURE_2D);
|
|
glBindTexture (GL_TEXTURE_2D, texture);
|
|
glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
|
|
glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
|
|
glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
|
|
glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
|
|
glTexEnvi (GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
|
|
|
|
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
|
|
glMatrixMode(GL_MODELVIEW);
|
|
glLoadIdentity();
|
|
|
|
glScalef(0.5f,0.5f,0.5f);
|
|
|
|
glRotatef(xrot,1.0f,0.0f,0.0f);
|
|
glRotatef(yrot,0.0f,1.0f,0.0f);
|
|
glRotatef(zrot,0.0f,0.0f,1.0f);
|
|
|
|
glBegin(GL_QUADS);
|
|
// Front Face
|
|
glTexCoord2f(1.0f, 0.0f); glVertex3f(-1.0f, -1.0f, 1.0f);
|
|
glTexCoord2f(0.0f, 0.0f); glVertex3f( 1.0f, -1.0f, 1.0f);
|
|
glTexCoord2f(0.0f, 1.0f); glVertex3f( 1.0f, 1.0f, 1.0f);
|
|
glTexCoord2f(1.0f, 1.0f); glVertex3f(-1.0f, 1.0f, 1.0f);
|
|
// Back Face
|
|
glTexCoord2f(0.0f, 0.0f); glVertex3f(-1.0f, -1.0f, -1.0f);
|
|
glTexCoord2f(0.0f, 1.0f); glVertex3f(-1.0f, 1.0f, -1.0f);
|
|
glTexCoord2f(1.0f, 1.0f); glVertex3f( 1.0f, 1.0f, -1.0f);
|
|
glTexCoord2f(1.0f, 0.0f); glVertex3f( 1.0f, -1.0f, -1.0f);
|
|
// Top Face
|
|
glTexCoord2f(1.0f, 1.0f); glVertex3f(-1.0f, 1.0f, -1.0f);
|
|
glTexCoord2f(1.0f, 0.0f); glVertex3f(-1.0f, 1.0f, 1.0f);
|
|
glTexCoord2f(0.0f, 0.0f); glVertex3f( 1.0f, 1.0f, 1.0f);
|
|
glTexCoord2f(0.0f, 1.0f); glVertex3f( 1.0f, 1.0f, -1.0f);
|
|
// Bottom Face
|
|
glTexCoord2f(1.0f, 0.0f); glVertex3f(-1.0f, -1.0f, -1.0f);
|
|
glTexCoord2f(0.0f, 0.0f); glVertex3f( 1.0f, -1.0f, -1.0f);
|
|
glTexCoord2f(0.0f, 1.0f); glVertex3f( 1.0f, -1.0f, 1.0f);
|
|
glTexCoord2f(1.0f, 1.0f); glVertex3f(-1.0f, -1.0f, 1.0f);
|
|
// Right face
|
|
glTexCoord2f(0.0f, 0.0f); glVertex3f( 1.0f, -1.0f, -1.0f);
|
|
glTexCoord2f(0.0f, 1.0f); glVertex3f( 1.0f, 1.0f, -1.0f);
|
|
glTexCoord2f(1.0f, 1.0f); glVertex3f( 1.0f, 1.0f, 1.0f);
|
|
glTexCoord2f(1.0f, 0.0f); glVertex3f( 1.0f, -1.0f, 1.0f);
|
|
// Left Face
|
|
glTexCoord2f(1.0f, 0.0f); glVertex3f(-1.0f, -1.0f, -1.0f);
|
|
glTexCoord2f(0.0f, 0.0f); glVertex3f(-1.0f, -1.0f, 1.0f);
|
|
glTexCoord2f(0.0f, 1.0f); glVertex3f(-1.0f, 1.0f, 1.0f);
|
|
glTexCoord2f(1.0f, 1.0f); glVertex3f(-1.0f, 1.0f, -1.0f);
|
|
glEnd();
|
|
|
|
gst_video_frame_unmap (&v_frame);
|
|
|
|
xrot+=0.3f;
|
|
yrot+=0.2f;
|
|
zrot+=0.4f;
|
|
|
|
glDisable (GL_DEPTH_TEST);
|
|
glDisable (GL_TEXTURE_2D);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
//gst-launch-1.0 videotestsrc num_buffers=400 ! video/x-raw, width=320, height=240 !
|
|
//glgraphicmaker ! glfiltercube ! video/x-raw, width=800, height=600 ! glimagesink
|
|
gint main (gint argc, gchar *argv[])
|
|
{
|
|
GstStateChangeReturn ret;
|
|
GstElement *pipeline, *videosrc, *glimagesink;
|
|
|
|
GMainLoop *loop;
|
|
GstBus *bus;
|
|
|
|
/* initialization */
|
|
gst_init (&argc, &argv);
|
|
loop = g_main_loop_new (NULL, FALSE);
|
|
|
|
/* create elements */
|
|
pipeline = gst_pipeline_new ("pipeline");
|
|
|
|
/* watch for messages on the pipeline's bus (note that this will only
|
|
* work like this when a GLib main loop is running) */
|
|
bus = gst_pipeline_get_bus (GST_PIPELINE (pipeline));
|
|
gst_bus_add_watch (bus, bus_call, loop);
|
|
gst_object_unref (bus);
|
|
|
|
/* create elements */
|
|
videosrc = gst_element_factory_make ("videotestsrc", "videotestsrc0");
|
|
glimagesink = gst_element_factory_make ("glimagesink", "glimagesink0");
|
|
|
|
|
|
if (!videosrc || !glimagesink)
|
|
{
|
|
g_print ("one element could not be found \n");
|
|
return -1;
|
|
}
|
|
|
|
/* change video source caps */
|
|
GstCaps *caps = gst_caps_new_simple("video/x-raw",
|
|
"format", G_TYPE_STRING, "RGB",
|
|
"width", G_TYPE_INT, 320,
|
|
"height", G_TYPE_INT, 240,
|
|
"framerate", GST_TYPE_FRACTION, 25, 1,
|
|
NULL) ;
|
|
|
|
/* configure elements */
|
|
g_object_set(G_OBJECT(videosrc), "num-buffers", 400, NULL);
|
|
g_signal_connect(G_OBJECT(glimagesink), "client-reshape", G_CALLBACK (reshapeCallback), NULL);
|
|
g_signal_connect(G_OBJECT(glimagesink), "client-draw", G_CALLBACK (drawCallback), NULL);
|
|
|
|
/* add elements */
|
|
gst_bin_add_many (GST_BIN (pipeline), videosrc, glimagesink, NULL);
|
|
|
|
/* link elements */
|
|
gboolean link_ok = gst_element_link_filtered(videosrc, glimagesink, caps) ;
|
|
gst_caps_unref(caps) ;
|
|
if(!link_ok)
|
|
{
|
|
g_warning("Failed to link videosrc to glimagesink!\n") ;
|
|
return -1 ;
|
|
}
|
|
|
|
/* run */
|
|
ret = gst_element_set_state (pipeline, GST_STATE_PLAYING);
|
|
if (ret == GST_STATE_CHANGE_FAILURE)
|
|
{
|
|
g_print ("Failed to start up pipeline!\n");
|
|
|
|
/* check if there is an error message with details on the bus */
|
|
GstMessage* msg = gst_bus_poll (bus, GST_MESSAGE_ERROR, 0);
|
|
if (msg)
|
|
{
|
|
GError *err = NULL;
|
|
|
|
gst_message_parse_error (msg, &err, NULL);
|
|
g_print ("ERROR: %s\n", err->message);
|
|
g_error_free (err);
|
|
gst_message_unref (msg);
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
g_main_loop_run (loop);
|
|
|
|
/* clean up */
|
|
gst_element_set_state (pipeline, GST_STATE_NULL);
|
|
gst_object_unref (pipeline);
|
|
|
|
return 0;
|
|
}
|