static GstFlowReturn
gst_glimage_sink_render (GstBaseSink * bsink, GstBuffer * buf)
{
GstGLImageSink *glimage_sink = NULL;
GstGLBuffer *gl_buffer = NULL;
glimage_sink = GST_GLIMAGE_SINK (bsink);
GST_INFO ("buffer size: %d", GST_BUFFER_SIZE (buf));
//is gl
if (glimage_sink->is_gl) {
//increment gl buffer ref before storage
gl_buffer = GST_GL_BUFFER (gst_buffer_ref (buf));
}
//is not gl
else {
//blocking call
gl_buffer = gst_gl_buffer_new (glimage_sink->display,
glimage_sink->width, glimage_sink->height);
//blocking call
gst_gl_display_do_upload (glimage_sink->display, gl_buffer->texture,
glimage_sink->width, glimage_sink->height, GST_BUFFER_DATA (buf));
//gl_buffer is created in this block, so the gl buffer is already referenced
}
if (glimage_sink->window_id != glimage_sink->new_window_id) {
glimage_sink->window_id = glimage_sink->new_window_id;
gst_gl_display_set_window_id (glimage_sink->display,
glimage_sink->window_id);
}
//the buffer is cleared when an other comes in
if (glimage_sink->stored_buffer) {
gst_buffer_unref (GST_BUFFER_CAST (glimage_sink->stored_buffer));
glimage_sink->stored_buffer = NULL;
}
//store current buffer
glimage_sink->stored_buffer = gl_buffer;
//redisplay opengl scene
if (gl_buffer->texture &&
gst_gl_display_redisplay (glimage_sink->display,
gl_buffer->texture, gl_buffer->width, gl_buffer->height,
glimage_sink->window_width, glimage_sink->window_height,
glimage_sink->keep_aspect_ratio))
return GST_FLOW_OK;
else {
GST_ELEMENT_ERROR (glimage_sink, RESOURCE, NOT_FOUND,
GST_GL_DISPLAY_ERR_MSG (glimage_sink->display), (NULL));
return GST_FLOW_ERROR;
}
}
static GstFlowReturn
gst_egl_sink_show_frame (GstVideoSink *video_sink, GstBuffer *buf)
{
GstEGLSink *egl_sink;
GstEGLBuffer *egl_buffer;
GstFlowReturn ret;
egl_sink = GST_EGL_SINK (video_sink);
GST_DEBUG("eglsink show_frame count %d\n", ++egl_sink->show_count);
GST_INFO ("buffer %p, buffer size: %d", buf, GST_BUFFER_SIZE (buf));
if(egl_sink->draw_callback)
return egl_sink->draw_callback(buf, egl_sink->client_data);
//is egl
if (GST_IS_EGL_BUFFER(buf)) {
GST_DEBUG("Direct rendering");
//increment gl buffer ref before storage
egl_buffer = GST_EGL_BUFFER (gst_buffer_ref(buf));
}
//is not egl
else {
egl_buffer = gst_gl_display_get_free_buffer (egl_sink->display,
GST_BUFFER_CAPS(buf), -1, FALSE);
if(egl_buffer)
gst_gl_display_do_upload (egl_sink->display, egl_buffer, buf);
else
return GST_FLOW_UNEXPECTED;
}
if (egl_sink->window_id != egl_sink->new_window_id) {
egl_sink->window_id = egl_sink->new_window_id;
gst_gl_display_set_window_id (egl_sink->display,
egl_sink->window_id);
}
GST_INFO("redisplay texture %d, width %d, height %d", egl_buffer->texinfo->texture,
egl_sink->window_width, egl_sink->window_height);
//redisplay opengl scene
if (gst_gl_display_redisplay (egl_sink->display,
egl_buffer,
egl_sink->window_width, egl_sink->window_height,
egl_sink->keep_aspect_ratio))
ret = GST_FLOW_OK;
else
ret = GST_FLOW_UNEXPECTED;
gst_egl_buffer_unref(egl_buffer);
return ret;
}
static void
gst_glimage_sink_expose (GstXOverlay * overlay)
{
GstGLImageSink *glimage_sink = GST_GLIMAGE_SINK (overlay);
//redisplay opengl scene
if (glimage_sink->display && glimage_sink->window_id) {
if (glimage_sink->window_id != glimage_sink->new_window_id) {
glimage_sink->window_id = glimage_sink->new_window_id;
gst_gl_display_set_window_id (glimage_sink->display,
glimage_sink->window_id);
}
gst_gl_display_redisplay (glimage_sink->display, 0, 0, 0,
glimage_sink->keep_aspect_ratio);
}
}
static void
gst_egl_sink_expose (GstXOverlay * overlay)
{
GstEGLSink *egl_sink = GST_EGL_SINK (overlay);
//redisplay opengl scene
if (egl_sink->display && egl_sink->window_id) {
if (egl_sink->window_id != egl_sink->new_window_id) {
egl_sink->window_id = egl_sink->new_window_id;
gst_gl_display_set_window_id (egl_sink->display,
egl_sink->window_id);
}
gst_gl_display_redisplay (egl_sink->display, NULL, 0, 0,
egl_sink->keep_aspect_ratio);
}
}
static GstFlowReturn
gst_glimage_sink_render (GstBaseSink * bsink, GstBuffer * buf)
{
GstGLImageSink *glimage_sink = NULL;
GstGLBuffer *gl_buffer = NULL;
glimage_sink = GST_GLIMAGE_SINK (bsink);
GST_INFO ("buffer size: %d", GST_BUFFER_SIZE (buf));
//is gl
if (glimage_sink->is_gl) {
//increment gl buffer ref before storage
gl_buffer = GST_GL_BUFFER (gst_buffer_ref (buf));
//if glimagesink has not the display yet
if (glimage_sink->display == NULL) {
glimage_sink->display = g_object_ref (gl_buffer->display);
gst_gl_display_set_client_reshape_callback (glimage_sink->display,
glimage_sink->clientReshapeCallback);
gst_gl_display_set_client_draw_callback (glimage_sink->display,
glimage_sink->clientDrawCallback);
}
}
//is not gl
else {
//if glimagesink has not the display yet
if (glimage_sink->display == NULL) {
//create a display
glimage_sink->display = gst_gl_display_new ();
//init opengl context
gst_gl_display_create_context (glimage_sink->display,
glimage_sink->width, glimage_sink->height, 0);
//init colorspace conversion if needed
gst_gl_display_init_upload (glimage_sink->display, glimage_sink->format,
glimage_sink->width, glimage_sink->height,
glimage_sink->width, glimage_sink->height);
gst_gl_display_set_client_reshape_callback (glimage_sink->display,
glimage_sink->clientReshapeCallback);
gst_gl_display_set_client_draw_callback (glimage_sink->display,
glimage_sink->clientDrawCallback);
}
//blocking call
gl_buffer = gst_gl_buffer_new (glimage_sink->display,
glimage_sink->width, glimage_sink->height);
//blocking call
gst_gl_display_do_upload (glimage_sink->display, gl_buffer->texture,
glimage_sink->width, glimage_sink->height, GST_BUFFER_DATA (buf));
//gl_buffer is created in this block, so the gl buffer is already referenced
}
if (glimage_sink->window_id != glimage_sink->new_window_id) {
glimage_sink->window_id = glimage_sink->new_window_id;
gst_gl_display_set_window_id (glimage_sink->display,
glimage_sink->window_id);
}
//the buffer is cleared when an other comes in
if (glimage_sink->stored_buffer) {
gst_buffer_unref (GST_BUFFER_CAST (glimage_sink->stored_buffer));
glimage_sink->stored_buffer = NULL;
}
//store current buffer
glimage_sink->stored_buffer = gl_buffer;
//redisplay opengl scene
if (gl_buffer->texture &&
gst_gl_display_redisplay (glimage_sink->display,
gl_buffer->texture, gl_buffer->width, gl_buffer->height,
glimage_sink->keep_aspect_ratio))
return GST_FLOW_OK;
else
return GST_FLOW_UNEXPECTED;
}