void
gst_gl_filter_render_to_target (GstGLFilter * filter,
GLuint input, GLuint target, GLCB func, gpointer data)
{
gst_gl_display_use_fbo (filter->display, filter->width, filter->height,
filter->fbo, filter->depthbuffer, target,
func,
filter->width, filter->height, input,
0, filter->width, 0, filter->height,
GST_GL_DISPLAY_PROJECTION_ORTHO2D, data);
}
static gboolean
gst_gl_filter_cube_filter (GstGLFilter * filter, GstGLBuffer * inbuf,
GstGLBuffer * outbuf)
{
GstGLFilterCube *cube_filter = GST_GL_FILTER_CUBE (filter);
//blocking call, use a FBO
gst_gl_display_use_fbo (filter->display, filter->width, filter->height,
filter->fbo, filter->depthbuffer, outbuf->texture,
gst_gl_filter_cube_callback, inbuf->width, inbuf->height, inbuf->texture,
cube_filter->fovy, cube_filter->aspect, cube_filter->znear,
cube_filter->zfar, GST_GL_DISPLAY_PROJECTION_PERSPECTIVE,
(gpointer) cube_filter);
return TRUE;
}
static gboolean
gst_gl_filter_glass_filter (GstGLFilter * filter, GstGLBuffer * inbuf,
GstGLBuffer * outbuf)
{
gpointer glass_filter = GST_GL_FILTER_GLASS (filter);
GST_GL_FILTER_GLASS (glass_filter)->timestamp = GST_BUFFER_TIMESTAMP (inbuf);
//blocking call, use a FBO
gst_gl_display_use_fbo (filter->display, filter->width, filter->height,
filter->fbo, filter->depthbuffer, outbuf->texture,
gst_gl_filter_glass_callback, inbuf->width, inbuf->height, inbuf->texture,
80, (gdouble) filter->width / (gdouble) filter->height, 1.0, 5000.0,
GST_GL_DISPLAY_PROJECTION_PERSPECTIVE, (gpointer) glass_filter);
return TRUE;
}
static gboolean
gst_gl_bumper_filter (GstGLFilter * filter, GstGLBuffer * inbuf,
GstGLBuffer * outbuf)
{
gpointer bumper_filter = GST_GL_BUMPER (filter);
//blocking call, use a FBO
gst_gl_display_use_fbo (filter->display, filter->width, filter->height,
filter->fbo, filter->depthbuffer, outbuf->texture, gst_gl_bumper_callback,
inbuf->width, inbuf->height, inbuf->texture,
//bumper_filter->fovy, bumper_filter->aspect, bumper_filter->znear, bumper_filter->zfar,
45, (gdouble) filter->width / (gdouble) filter->height, 0.1, 50,
GST_GL_DISPLAY_PROJECTION_PERSPECTIVE, bumper_filter);
return TRUE;
}
static gboolean
gst_gl_deinterlace_filter (GstGLFilter * filter, GstGLBuffer * inbuf,
GstGLBuffer * outbuf)
{
GstGLDeinterlace *deinterlace_filter = GST_GL_DEINTERLACE (filter);
//blocking call, use a FBO
gst_gl_display_use_fbo (filter->display, filter->width, filter->height,
filter->fbo, filter->depthbuffer, outbuf->texture,
gst_gl_deinterlace_callback, inbuf->width, inbuf->height,
inbuf->texture, 0, filter->width, 0, filter->height,
GST_GL_DISPLAY_PROJECTION_ORTHO2D, (gpointer) deinterlace_filter);
if (deinterlace_filter->gl_buffer_prev)
gst_buffer_unref (GST_BUFFER_CAST (deinterlace_filter->gl_buffer_prev));
deinterlace_filter->gl_buffer_prev =
GST_GL_BUFFER (gst_buffer_ref (GST_BUFFER_CAST (inbuf)));
return TRUE;
}
static GstFlowReturn
gst_visual_gl_chain (GstPad * pad, GstBuffer * buffer)
{
GstGLBuffer *outbuf = NULL;
GstVisualGL *visual = GST_VISUAL_GL (gst_pad_get_parent (pad));
GstFlowReturn ret = GST_FLOW_OK;
guint avail;
GST_DEBUG_OBJECT (visual, "chain function called");
/* If we don't have an output format yet, preallocate a buffer to try and
* set one */
if (GST_PAD_CAPS (visual->srcpad) == NULL) {
ret = get_buffer (visual, &outbuf);
if (ret != GST_FLOW_OK) {
gst_buffer_unref (buffer);
goto beach;
}
}
/* resync on DISCONT */
if (GST_BUFFER_FLAG_IS_SET (buffer, GST_BUFFER_FLAG_DISCONT)) {
gst_adapter_clear (visual->adapter);
}
GST_DEBUG_OBJECT (visual,
"Input buffer has %d samples, time=%" G_GUINT64_FORMAT,
GST_BUFFER_SIZE (buffer) / visual->bps, GST_BUFFER_TIMESTAMP (buffer));
gst_adapter_push (visual->adapter, buffer);
while (TRUE) {
gboolean need_skip;
guint64 dist, timestamp;
GST_DEBUG_OBJECT (visual, "processing buffer");
avail = gst_adapter_available (visual->adapter);
GST_DEBUG_OBJECT (visual, "avail now %u", avail);
/* we need at least VISUAL_SAMPLES samples */
if (avail < VISUAL_SAMPLES * visual->bps)
break;
/* we need at least enough samples to make one frame */
if (avail < visual->spf * visual->bps)
break;
/* get timestamp of the current adapter byte */
timestamp = gst_adapter_prev_timestamp (visual->adapter, &dist);
if (GST_CLOCK_TIME_IS_VALID (timestamp)) {
/* convert bytes to time */
dist /= visual->bps;
timestamp += gst_util_uint64_scale_int (dist, GST_SECOND, visual->rate);
}
if (timestamp != -1) {
gint64 qostime;
/* QoS is done on running time */
qostime = gst_segment_to_running_time (&visual->segment, GST_FORMAT_TIME,
timestamp);
qostime += visual->duration;
GST_OBJECT_LOCK (visual);
/* check for QoS, don't compute buffers that are known to be late */
need_skip = visual->earliest_time != -1 &&
qostime <= visual->earliest_time;
GST_OBJECT_UNLOCK (visual);
if (need_skip) {
GST_WARNING_OBJECT (visual,
"QoS: skip ts: %" GST_TIME_FORMAT ", earliest: %" GST_TIME_FORMAT,
GST_TIME_ARGS (qostime), GST_TIME_ARGS (visual->earliest_time));
goto skip;
}
}
/* alloc a buffer if we don't have one yet, this happens
* when we pushed a buffer in this while loop before */
if (outbuf == NULL) {
ret = get_buffer (visual, &outbuf);
if (ret != GST_FLOW_OK) {
goto beach;
}
}
/* render libvisual plugin to our target */
gst_gl_display_use_fbo_v2 (visual->display,
visual->width, visual->height, visual->fbo, visual->depthbuffer,
visual->midtexture, (GLCB_V2) render_frame, (gpointer *) visual);
/* gst video is top-down whereas opengl plan is bottom up */
gst_gl_display_use_fbo (visual->display,
visual->width, visual->height, visual->fbo, visual->depthbuffer,
outbuf->texture, (GLCB) bottom_up_to_top_down,
visual->width, visual->height, visual->midtexture,
0, visual->width, 0, visual->height, GST_GL_DISPLAY_PROJECTION_ORTHO2D,
(gpointer *) visual);
GST_BUFFER_TIMESTAMP (outbuf) = timestamp;
GST_BUFFER_DURATION (outbuf) = visual->duration;
ret = gst_pad_push (visual->srcpad, GST_BUFFER (outbuf));
outbuf = NULL;
skip:
GST_DEBUG_OBJECT (visual, "finished frame, flushing %u samples from input",
visual->spf);
/* Flush out the number of samples per frame */
gst_adapter_flush (visual->adapter, visual->spf * visual->bps);
/* quit the loop if something was wrong */
if (ret != GST_FLOW_OK)
break;
}
beach:
if (outbuf != NULL)
gst_gl_buffer_unref (outbuf);
gst_object_unref (visual);
return ret;
}
