static void gst_glimage_sink_get_property (GObject * object, guint prop_id, GValue * value, GParamSpec * pspec) { GstGLImageSink *glimage_sink; g_return_if_fail (GST_IS_GLIMAGE_SINK (object)); glimage_sink = GST_GLIMAGE_SINK (object); switch (prop_id) { case ARG_DISPLAY: g_value_set_string (value, glimage_sink->display_name); break; case PROP_FORCE_ASPECT_RATIO: g_value_set_boolean (value, glimage_sink->keep_aspect_ratio); break; case PROP_PIXEL_ASPECT_RATIO: gst_value_set_fraction (value, glimage_sink->par_n, glimage_sink->par_d); break; case PROP_OTHER_CONTEXT: g_value_set_object (value, glimage_sink->other_context); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); break; } }
static void gst_glimage_sink_set_context (GstElement * element, GstContext * context) { GstGLImageSink *gl_sink = GST_GLIMAGE_SINK (element); gst_gl_handle_set_context (element, context, &gl_sink->display); }
static void gst_glimage_sink_get_property (GObject * object, guint prop_id, GValue * value, GParamSpec * pspec) { GstGLImageSink *glimage_sink; g_return_if_fail (GST_IS_GLIMAGE_SINK (object)); glimage_sink = GST_GLIMAGE_SINK (object); switch (prop_id) { case ARG_DISPLAY: g_value_set_string (value, glimage_sink->display_name); break; case PROP_FORCE_ASPECT_RATIO: g_value_set_boolean (value, glimage_sink->keep_aspect_ratio); break; case PROP_PIXEL_ASPECT_RATIO: if (!glimage_sink->par) { glimage_sink->par = g_new0 (GValue, 1); g_value_init (glimage_sink->par, GST_TYPE_FRACTION); gst_value_set_fraction (glimage_sink->par, 1, 1); } if (!g_value_transform (glimage_sink->par, value)) g_warning ("Could not transform string to aspect ratio"); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); break; } }
static void gst_glimage_sink_set_property (GObject * object, guint prop_id, const GValue * value, GParamSpec * pspec) { GstGLImageSink *glimage_sink; g_return_if_fail (GST_IS_GLIMAGE_SINK (object)); glimage_sink = GST_GLIMAGE_SINK (object); switch (prop_id) { case ARG_DISPLAY: { g_free (glimage_sink->display_name); glimage_sink->display_name = g_strdup (g_value_get_string (value)); break; } case PROP_CLIENT_RESHAPE_CALLBACK: { glimage_sink->clientReshapeCallback = g_value_get_pointer (value); break; } case PROP_CLIENT_DRAW_CALLBACK: { glimage_sink->clientDrawCallback = g_value_get_pointer (value); break; } case PROP_CLIENT_DATA: { glimage_sink->client_data = g_value_get_pointer (value); break; } case PROP_FORCE_ASPECT_RATIO: { glimage_sink->keep_aspect_ratio = g_value_get_boolean (value); break; } case PROP_PIXEL_ASPECT_RATIO: { glimage_sink->par_n = gst_value_get_fraction_numerator (value); glimage_sink->par_d = gst_value_get_fraction_denominator (value); break; } case PROP_OTHER_CONTEXT: { if (glimage_sink->other_context) gst_object_unref (glimage_sink->other_context); glimage_sink->other_context = g_value_dup_object (value); break; } default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); break; } }
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 void gst_glimage_sink_set_xwindow_id (GstXOverlay * overlay, gulong window_id) { GstGLImageSink *glimage_sink = GST_GLIMAGE_SINK (overlay); g_return_if_fail (GST_IS_GLIMAGE_SINK (overlay)); GST_DEBUG ("set_xwindow_id %ld", window_id); glimage_sink->new_window_id = window_id; }
static gboolean gst_glimage_sink_stop (GstBaseSink * bsink) { GstGLImageSink *glimage_sink = GST_GLIMAGE_SINK (bsink); if (glimage_sink->pool) { gst_object_unref (glimage_sink->pool); glimage_sink->pool = NULL; } return TRUE; }
static void gst_glimage_sink_set_property (GObject * object, guint prop_id, const GValue * value, GParamSpec * pspec) { GstGLImageSink *glimage_sink; g_return_if_fail (GST_IS_GLIMAGE_SINK (object)); glimage_sink = GST_GLIMAGE_SINK (object); switch (prop_id) { case ARG_DISPLAY: { g_free (glimage_sink->display_name); glimage_sink->display_name = g_strdup (g_value_get_string (value)); break; } case PROP_CLIENT_RESHAPE_CALLBACK: { glimage_sink->clientReshapeCallback = g_value_get_pointer (value); break; } case PROP_CLIENT_DRAW_CALLBACK: { glimage_sink->clientDrawCallback = g_value_get_pointer (value); break; } case PROP_CLIENT_DATA: { glimage_sink->client_data = g_value_get_pointer (value); break; } case PROP_FORCE_ASPECT_RATIO: { glimage_sink->keep_aspect_ratio = g_value_get_boolean (value); break; } case PROP_PIXEL_ASPECT_RATIO: { g_free (glimage_sink->par); glimage_sink->par = g_new0 (GValue, 1); g_value_init (glimage_sink->par, GST_TYPE_FRACTION); if (!g_value_transform (value, glimage_sink->par)) { g_warning ("Could not transform string to aspect ratio"); gst_value_set_fraction (glimage_sink->par, 1, 1); } break; } default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); break; } }
static void gst_glimage_sink_set_window_handle (GstVideoOverlay * overlay, guintptr id) { GstGLImageSink *glimage_sink = GST_GLIMAGE_SINK (overlay); guintptr window_id = (guintptr) id; g_return_if_fail (GST_IS_GLIMAGE_SINK (overlay)); GST_DEBUG ("set_xwindow_id %" G_GUINT64_FORMAT, (guint64) window_id); glimage_sink->new_window_id = window_id; }
static GstFlowReturn gst_glimage_sink_show_frame (GstVideoSink * vsink, GstBuffer * buf) { GstGLImageSink *glimage_sink; GstBuffer *stored_buffer; GST_TRACE ("rendering buffer:%p", buf); glimage_sink = GST_GLIMAGE_SINK (vsink); GST_TRACE ("redisplay texture:%u of size:%ux%u, window size:%ux%u", glimage_sink->next_tex, GST_VIDEO_INFO_WIDTH (&glimage_sink->info), GST_VIDEO_INFO_HEIGHT (&glimage_sink->info), GST_VIDEO_SINK_WIDTH (glimage_sink), GST_VIDEO_SINK_HEIGHT (glimage_sink)); /* Avoid to release the texture while drawing */ GST_GLIMAGE_SINK_LOCK (glimage_sink); glimage_sink->redisplay_texture = glimage_sink->next_tex; stored_buffer = glimage_sink->stored_buffer; glimage_sink->stored_buffer = gst_buffer_ref (buf); GST_GLIMAGE_SINK_UNLOCK (glimage_sink); if (stored_buffer) gst_buffer_unref (stored_buffer); /* Ask the underlying window to redraw its content */ if (!gst_glimage_sink_redisplay (glimage_sink)) goto redisplay_failed; GST_TRACE ("post redisplay"); if (g_atomic_int_get (&glimage_sink->to_quit) != 0) { GST_ELEMENT_ERROR (glimage_sink, RESOURCE, NOT_FOUND, ("%s", gst_gl_context_get_error ()), (NULL)); gst_gl_upload_release_buffer (glimage_sink->upload); return GST_FLOW_ERROR; } return GST_FLOW_OK; /* ERRORS */ redisplay_failed: { gst_gl_upload_release_buffer (glimage_sink->upload); GST_ELEMENT_ERROR (glimage_sink, RESOURCE, NOT_FOUND, ("%s", gst_gl_context_get_error ()), (NULL)); return GST_FLOW_ERROR; } }
static gboolean gst_glimage_sink_set_caps (GstBaseSink * bsink, GstCaps * caps) { GstGLImageSink *glimage_sink; gint width; gint height; gboolean ok; gint fps_n, fps_d; gint par_n, par_d; GstVideoFormat format; GstStructure *structure; gboolean is_gl; GST_DEBUG ("set caps with %" GST_PTR_FORMAT, caps); glimage_sink = GST_GLIMAGE_SINK (bsink); structure = gst_caps_get_structure (caps, 0); if (gst_structure_has_name (structure, "video/x-raw-gl")) { is_gl = TRUE; format = GST_VIDEO_FORMAT_UNKNOWN; ok = gst_structure_get_int (structure, "width", &width); ok &= gst_structure_get_int (structure, "height", &height); } else { is_gl = FALSE; ok = gst_video_format_parse_caps (caps, &format, &width, &height); } ok &= gst_video_parse_caps_framerate (caps, &fps_n, &fps_d); ok &= gst_video_parse_caps_pixel_aspect_ratio (caps, &par_n, &par_d); if (!ok) return FALSE; GST_VIDEO_SINK_WIDTH (glimage_sink) = width; GST_VIDEO_SINK_HEIGHT (glimage_sink) = height; glimage_sink->is_gl = is_gl; glimage_sink->format = format; glimage_sink->width = width; glimage_sink->height = height; glimage_sink->fps_n = fps_n; glimage_sink->fps_d = fps_d; glimage_sink->par_n = par_n; glimage_sink->par_d = par_d; if (!glimage_sink->window_id && !glimage_sink->new_window_id) gst_x_overlay_prepare_xwindow_id (GST_X_OVERLAY (glimage_sink)); return TRUE; }
static void gst_glimage_sink_finalize (GObject * object) { GstGLImageSink *glimage_sink; g_return_if_fail (GST_IS_GLIMAGE_SINK (object)); glimage_sink = GST_GLIMAGE_SINK (object); g_mutex_clear (&glimage_sink->drawing_lock); g_free (glimage_sink->display_name); GST_DEBUG ("finalized"); }
static void gst_glimage_sink_finalize (GObject * object) { GstGLImageSink *glimage_sink; g_return_if_fail (GST_IS_GLIMAGE_SINK (object)); glimage_sink = GST_GLIMAGE_SINK (object); if (glimage_sink->caps) gst_caps_unref (glimage_sink->caps); g_free (glimage_sink->display_name); GST_DEBUG ("finalized"); }
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 GstStateChangeReturn gst_glimage_sink_change_state (GstElement * element, GstStateChange transition) { GstGLImageSink *glimage_sink; GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS; GST_DEBUG ("change state"); glimage_sink = GST_GLIMAGE_SINK (element); switch (transition) { case GST_STATE_CHANGE_NULL_TO_READY: break; case GST_STATE_CHANGE_READY_TO_PAUSED: break; case GST_STATE_CHANGE_PAUSED_TO_PLAYING: break; default: break; } ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition); if (ret == GST_STATE_CHANGE_FAILURE) return ret; switch (transition) { case GST_STATE_CHANGE_PLAYING_TO_PAUSED: break; case GST_STATE_CHANGE_PAUSED_TO_READY: gst_glimage_sink_stop (GST_BASE_SINK (glimage_sink)); glimage_sink->fps_n = 0; glimage_sink->fps_d = 1; GST_VIDEO_SINK_WIDTH (glimage_sink) = 0; GST_VIDEO_SINK_HEIGHT (glimage_sink) = 0; break; case GST_STATE_CHANGE_READY_TO_NULL: break; default: break; } return ret; }
static void gst_glimage_sink_expose (GstVideoOverlay * 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) { GstGLWindow *window = gst_gl_context_get_window (glimage_sink->context); glimage_sink->window_id = glimage_sink->new_window_id; gst_gl_window_set_window_handle (window, glimage_sink->window_id); gst_object_unref (window); } gst_glimage_sink_redisplay (glimage_sink); } }
static gboolean gst_glimage_sink_query (GstBaseSink * bsink, GstQuery * query) { GstGLImageSink *glimage_sink = GST_GLIMAGE_SINK (bsink); gboolean res = FALSE; switch (GST_QUERY_TYPE (query)) { case GST_QUERY_CONTEXT: { return gst_gl_handle_context_query ((GstElement *) glimage_sink, query, &glimage_sink->display); break; } default: res = GST_BASE_SINK_CLASS (parent_class)->query (bsink, query); break; } return res; }
static void gst_glimage_sink_navigation_send_event (GstNavigation * navigation, GstStructure * structure) { GstGLImageSink *sink = GST_GLIMAGE_SINK (navigation); GstEvent *event = NULL; GstPad *pad = NULL; GstGLWindow *window = gst_gl_context_get_window (sink->context); guint width, height; gdouble x, y, xscale, yscale; g_return_if_fail (GST_GL_IS_WINDOW (window)); width = GST_VIDEO_SINK_WIDTH (sink); height = GST_VIDEO_SINK_HEIGHT (sink); gst_gl_window_get_surface_dimensions (window, &width, &height); event = gst_event_new_navigation (structure); pad = gst_pad_get_peer (GST_VIDEO_SINK_PAD (sink)); /* Converting pointer coordinates to the non scaled geometry */ if (width != GST_VIDEO_SINK_WIDTH (sink) && width != 0 && gst_structure_get_double (structure, "pointer_x", &x)) { xscale = (gdouble) GST_VIDEO_SINK_WIDTH (sink) / width; gst_structure_set (structure, "pointer_x", G_TYPE_DOUBLE, (gdouble) x * xscale, NULL); } if (height != GST_VIDEO_SINK_HEIGHT (sink) && height != 0 && gst_structure_get_double (structure, "pointer_y", &y)) { yscale = (gdouble) GST_VIDEO_SINK_HEIGHT (sink) / height; gst_structure_set (structure, "pointer_y", G_TYPE_DOUBLE, (gdouble) y * yscale, NULL); } if (GST_IS_PAD (pad) && GST_IS_EVENT (event)) gst_pad_send_event (pad, event); gst_object_unref (pad); gst_object_unref (window); }
static void gst_glimage_sink_get_times (GstBaseSink * bsink, GstBuffer * buf, GstClockTime * start, GstClockTime * end) { GstGLImageSink *glimagesink; glimagesink = GST_GLIMAGE_SINK (bsink); if (GST_BUFFER_TIMESTAMP_IS_VALID (buf)) { *start = GST_BUFFER_TIMESTAMP (buf); if (GST_BUFFER_DURATION_IS_VALID (buf)) *end = *start + GST_BUFFER_DURATION (buf); else { if (glimagesink->fps_n > 0) { *end = *start + gst_util_uint64_scale_int (GST_SECOND, glimagesink->fps_d, glimagesink->fps_n); } } } }
static gboolean gst_glimage_sink_query (GstElement * element, GstQuery * query) { GstGLImageSink *glimage_sink = GST_GLIMAGE_SINK (element); gboolean res = FALSE; switch (GST_QUERY_TYPE (query)) { case GST_QUERY_CUSTOM: { GstStructure *structure = gst_query_get_structure (query); gst_structure_set (structure, "gstgldisplay", G_TYPE_POINTER, glimage_sink->display, NULL); res = GST_ELEMENT_CLASS (parent_class)->query (element, query); break; } default: res = GST_ELEMENT_CLASS (parent_class)->query (element, query); break; } return res; }
static GstFlowReturn gst_glimage_sink_prepare (GstBaseSink * bsink, GstBuffer * buf) { GstGLImageSink *glimage_sink; glimage_sink = GST_GLIMAGE_SINK (bsink); GST_TRACE ("preparing buffer:%p", buf); if (GST_VIDEO_SINK_WIDTH (glimage_sink) < 1 || GST_VIDEO_SINK_HEIGHT (glimage_sink) < 1) { return GST_FLOW_NOT_NEGOTIATED; } if (!_ensure_gl_setup (glimage_sink)) return GST_FLOW_NOT_NEGOTIATED; if (!gst_gl_upload_perform_with_buffer (glimage_sink->upload, buf, &glimage_sink->next_tex)) goto upload_failed; if (glimage_sink->window_id != glimage_sink->new_window_id) { GstGLWindow *window = gst_gl_context_get_window (glimage_sink->context); glimage_sink->window_id = glimage_sink->new_window_id; gst_gl_window_set_window_handle (window, glimage_sink->window_id); gst_object_unref (window); } return GST_FLOW_OK; upload_failed: { GST_ELEMENT_ERROR (glimage_sink, RESOURCE, NOT_FOUND, ("%s", "Failed to upload buffer"), (NULL)); return GST_FLOW_ERROR; } }
static gboolean gst_glimage_sink_stop (GstBaseSink * bsink) { GstGLImageSink *glimage_sink; GST_DEBUG ("stop"); glimage_sink = GST_GLIMAGE_SINK (bsink); if (glimage_sink->stored_buffer) { gst_buffer_unref (GST_BUFFER_CAST (glimage_sink->stored_buffer)); glimage_sink->stored_buffer = NULL; } if (glimage_sink->display) { g_object_unref (glimage_sink->display); glimage_sink->display = NULL; } glimage_sink->window_id = 0; //but do not reset glimage_sink->new_window_id return TRUE; }
static void gst_glimage_sink_set_property (GObject * object, guint prop_id, const GValue * value, GParamSpec * pspec) { GstGLImageSink *glimage_sink; g_return_if_fail (GST_IS_GLIMAGE_SINK (object)); glimage_sink = GST_GLIMAGE_SINK (object); switch (prop_id) { case ARG_DISPLAY: { g_free (glimage_sink->display_name); glimage_sink->display_name = g_strdup (g_value_get_string (value)); break; } case PROP_CLIENT_RESHAPE_CALLBACK: { glimage_sink->clientReshapeCallback = g_value_get_pointer (value); break; } case PROP_CLIENT_DRAW_CALLBACK: { glimage_sink->clientDrawCallback = g_value_get_pointer (value); break; } case PROP_FORCE_ASPECT_RATIO: { glimage_sink->keep_aspect_ratio = g_value_get_boolean (value); break; } default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); break; } }
static GstFlowReturn gst_glimage_sink_render (GstBaseSink * bsink, GstBuffer * buf) { GstGLImageSink *glimage_sink; guint tex_id; GST_TRACE ("rendering buffer:%p", buf); glimage_sink = GST_GLIMAGE_SINK (bsink); if (GST_VIDEO_SINK_WIDTH (glimage_sink) < 1 || GST_VIDEO_SINK_HEIGHT (glimage_sink) < 1) { return GST_FLOW_NOT_NEGOTIATED; } if (!_ensure_gl_setup (glimage_sink)) return GST_FLOW_NOT_NEGOTIATED; if (!gst_gl_upload_perform_with_buffer (glimage_sink->upload, buf, &tex_id)) goto upload_failed; if (glimage_sink->window_id != glimage_sink->new_window_id) { GstGLWindow *window = gst_gl_context_get_window (glimage_sink->context); glimage_sink->window_id = glimage_sink->new_window_id; gst_gl_window_set_window_handle (window, glimage_sink->window_id); gst_object_unref (window); } GST_TRACE ("redisplay texture:%u of size:%ux%u, window size:%ux%u", tex_id, GST_VIDEO_INFO_WIDTH (&glimage_sink->info), GST_VIDEO_INFO_HEIGHT (&glimage_sink->info), GST_VIDEO_SINK_WIDTH (glimage_sink), GST_VIDEO_SINK_HEIGHT (glimage_sink)); /* Avoid to release the texture while drawing */ GST_GLIMAGE_SINK_LOCK (glimage_sink); glimage_sink->redisplay_texture = tex_id; GST_GLIMAGE_SINK_UNLOCK (glimage_sink); /* Ask the underlying window to redraw its content */ if (!gst_glimage_sink_redisplay (glimage_sink)) goto redisplay_failed; GST_TRACE ("post redisplay"); if (g_atomic_int_get (&glimage_sink->to_quit) != 0) { GST_ELEMENT_ERROR (glimage_sink, RESOURCE, NOT_FOUND, ("%s", gst_gl_context_get_error ()), (NULL)); gst_gl_upload_release_buffer (glimage_sink->upload); return GST_FLOW_ERROR; } gst_gl_upload_release_buffer (glimage_sink->upload); return GST_FLOW_OK; /* ERRORS */ redisplay_failed: { gst_gl_upload_release_buffer (glimage_sink->upload); GST_ELEMENT_ERROR (glimage_sink, RESOURCE, NOT_FOUND, ("%s", gst_gl_context_get_error ()), (NULL)); return GST_FLOW_ERROR; } upload_failed: { GST_ELEMENT_ERROR (glimage_sink, RESOURCE, NOT_FOUND, ("%s", "Failed to upload format"), (NULL)); return FALSE; } }
static gboolean gst_glimage_sink_set_caps (GstBaseSink * bsink, GstCaps * caps) { GstGLImageSink *glimage_sink; gint width; gint height; gboolean ok; gint par_n, par_d; gint display_par_n, display_par_d; guint display_ratio_num, display_ratio_den; GstVideoInfo vinfo; GstStructure *structure; GstBufferPool *newpool, *oldpool; GST_DEBUG ("set caps with %" GST_PTR_FORMAT, caps); glimage_sink = GST_GLIMAGE_SINK (bsink); ok = gst_video_info_from_caps (&vinfo, caps); if (!ok) return FALSE; width = GST_VIDEO_INFO_WIDTH (&vinfo); height = GST_VIDEO_INFO_HEIGHT (&vinfo); if (glimage_sink->tex_id) gst_gl_context_del_texture (glimage_sink->context, &glimage_sink->tex_id); //FIXME: this texture seems to be never deleted when going to STATE_NULL gst_gl_context_gen_texture (glimage_sink->context, &glimage_sink->tex_id, GST_VIDEO_INFO_FORMAT (&vinfo), width, height); par_n = GST_VIDEO_INFO_PAR_N (&vinfo); par_d = GST_VIDEO_INFO_PAR_D (&vinfo); if (!par_n) par_n = 1; /* get display's PAR */ if (glimage_sink->par_n != 0 && glimage_sink->par_d != 0) { display_par_n = glimage_sink->par_n; display_par_d = glimage_sink->par_d; } else { display_par_n = 1; display_par_d = 1; } ok = gst_video_calculate_display_ratio (&display_ratio_num, &display_ratio_den, width, height, par_n, par_d, display_par_n, display_par_d); if (!ok) return FALSE; GST_TRACE ("PAR: %u/%u DAR:%u/%u", par_n, par_d, display_par_n, display_par_d); if (height % display_ratio_den == 0) { GST_DEBUG ("keeping video height"); GST_VIDEO_SINK_WIDTH (glimage_sink) = (guint) gst_util_uint64_scale_int (height, display_ratio_num, display_ratio_den); GST_VIDEO_SINK_HEIGHT (glimage_sink) = height; } else if (width % display_ratio_num == 0) { GST_DEBUG ("keeping video width"); GST_VIDEO_SINK_WIDTH (glimage_sink) = width; GST_VIDEO_SINK_HEIGHT (glimage_sink) = (guint) gst_util_uint64_scale_int (width, display_ratio_den, display_ratio_num); } else { GST_DEBUG ("approximating while keeping video height"); GST_VIDEO_SINK_WIDTH (glimage_sink) = (guint) gst_util_uint64_scale_int (height, display_ratio_num, display_ratio_den); GST_VIDEO_SINK_HEIGHT (glimage_sink) = height; } GST_DEBUG ("scaling to %dx%d", GST_VIDEO_SINK_WIDTH (glimage_sink), GST_VIDEO_SINK_HEIGHT (glimage_sink)); glimage_sink->info = vinfo; newpool = gst_gl_buffer_pool_new (glimage_sink->context); structure = gst_buffer_pool_get_config (newpool); gst_buffer_pool_config_set_params (structure, caps, vinfo.size, 2, 0); gst_buffer_pool_set_config (newpool, structure); oldpool = glimage_sink->pool; /* we don't activate the pool yet, this will be done by downstream after it * has configured the pool. If downstream does not want our pool we will * activate it when we render into it */ glimage_sink->pool = newpool; /* unref the old sink */ if (oldpool) { /* we don't deactivate, some elements might still be using it, it will * be deactivated when the last ref is gone */ gst_object_unref (oldpool); } return TRUE; }
static GstStateChangeReturn gst_glimage_sink_change_state (GstElement * element, GstStateChange transition) { GstGLImageSink *glimage_sink; GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS; GST_DEBUG ("change state"); glimage_sink = GST_GLIMAGE_SINK (element); switch (transition) { case GST_STATE_CHANGE_NULL_TO_READY: break; case GST_STATE_CHANGE_READY_TO_PAUSED: g_atomic_int_set (&glimage_sink->to_quit, 0); if (!glimage_sink->display) { GstGLWindow *window; GError *error = NULL; if (!gst_gl_ensure_display (glimage_sink, &glimage_sink->display)) return GST_STATE_CHANGE_FAILURE; glimage_sink->context = gst_gl_context_new (glimage_sink->display); window = gst_gl_context_get_window (glimage_sink->context); if (!glimage_sink->window_id && !glimage_sink->new_window_id) gst_video_overlay_prepare_window_handle (GST_VIDEO_OVERLAY (glimage_sink)); if (glimage_sink->window_id != glimage_sink->new_window_id) { glimage_sink->window_id = glimage_sink->new_window_id; gst_gl_window_set_window_handle (window, glimage_sink->window_id); } if (!gst_gl_context_create (glimage_sink->context, glimage_sink->other_context, &error)) { GST_ELEMENT_ERROR (glimage_sink, RESOURCE, NOT_FOUND, ("%s", error->message), (NULL)); if (glimage_sink->display) { gst_object_unref (glimage_sink->display); glimage_sink->display = NULL; } gst_object_unref (glimage_sink->context); gst_object_unref (window); return GST_STATE_CHANGE_FAILURE; } /* setup callbacks */ gst_gl_window_set_resize_callback (window, GST_GL_WINDOW_RESIZE_CB (gst_glimage_sink_on_resize), gst_object_ref (glimage_sink), (GDestroyNotify) gst_object_unref); gst_gl_window_set_draw_callback (window, GST_GL_WINDOW_CB (gst_glimage_sink_on_draw), gst_object_ref (glimage_sink), (GDestroyNotify) gst_object_unref); gst_gl_window_set_close_callback (window, GST_GL_WINDOW_CB (gst_glimage_sink_on_close), gst_object_ref (glimage_sink), (GDestroyNotify) gst_object_unref); gst_object_unref (window); } break; case GST_STATE_CHANGE_PAUSED_TO_PLAYING: break; default: break; } ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition); if (ret == GST_STATE_CHANGE_FAILURE) return ret; switch (transition) { case GST_STATE_CHANGE_PLAYING_TO_PAUSED: break; case GST_STATE_CHANGE_PAUSED_TO_READY: { /* mark the redisplay_texture as unavailable (=0) * to avoid drawing */ GST_GLIMAGE_SINK_LOCK (glimage_sink); glimage_sink->redisplay_texture = 0; GST_GLIMAGE_SINK_UNLOCK (glimage_sink); if (glimage_sink->upload) { gst_object_unref (glimage_sink->upload); glimage_sink->upload = NULL; } glimage_sink->window_id = 0; //but do not reset glimage_sink->new_window_id if (glimage_sink->pool) { gst_buffer_pool_set_active (glimage_sink->pool, FALSE); gst_object_unref (glimage_sink->pool); glimage_sink->pool = NULL; } GST_VIDEO_SINK_WIDTH (glimage_sink) = 1; GST_VIDEO_SINK_HEIGHT (glimage_sink) = 1; if (glimage_sink->context) { GstGLWindow *window = gst_gl_context_get_window (glimage_sink->context); gst_gl_window_send_message (window, GST_GL_WINDOW_CB (gst_glimage_sink_cleanup_glthread), glimage_sink); gst_gl_window_set_resize_callback (window, NULL, NULL, NULL); gst_gl_window_set_draw_callback (window, NULL, NULL, NULL); gst_gl_window_set_close_callback (window, NULL, NULL, NULL); gst_object_unref (window); gst_object_unref (glimage_sink->context); glimage_sink->context = NULL; gst_object_unref (glimage_sink->display); glimage_sink->display = NULL; } break; } case GST_STATE_CHANGE_READY_TO_NULL: break; default: break; } return ret; }
static GstStateChangeReturn gst_glimage_sink_change_state (GstElement * element, GstStateChange transition) { GstGLImageSink *glimage_sink; GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS; GST_DEBUG ("change state"); glimage_sink = GST_GLIMAGE_SINK (element); switch (transition) { case GST_STATE_CHANGE_NULL_TO_READY: break; case GST_STATE_CHANGE_READY_TO_PAUSED: if (!glimage_sink->display) { gboolean ok = FALSE; glimage_sink->display = gst_gl_display_new (); /* init opengl context */ ok = gst_gl_display_create_context (glimage_sink->display, 0); if (!ok) { GST_ELEMENT_ERROR (glimage_sink, RESOURCE, NOT_FOUND, GST_GL_DISPLAY_ERR_MSG (glimage_sink->display), (NULL)); if (glimage_sink->display) { g_object_unref (glimage_sink->display); glimage_sink->display = NULL; } return GST_STATE_CHANGE_FAILURE; } } break; case GST_STATE_CHANGE_PAUSED_TO_PLAYING: break; default: break; } ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition); if (ret == GST_STATE_CHANGE_FAILURE) return ret; switch (transition) { case GST_STATE_CHANGE_PLAYING_TO_PAUSED: break; case GST_STATE_CHANGE_PAUSED_TO_READY: { if (glimage_sink->stored_buffer) { gst_buffer_unref (GST_BUFFER_CAST (glimage_sink->stored_buffer)); glimage_sink->stored_buffer = NULL; } if (glimage_sink->display) { g_object_unref (glimage_sink->display); glimage_sink->display = NULL; } glimage_sink->window_id = 0; //but do not reset glimage_sink->new_window_id glimage_sink->fps_n = 0; glimage_sink->fps_d = 1; GST_VIDEO_SINK_WIDTH (glimage_sink) = 0; GST_VIDEO_SINK_HEIGHT (glimage_sink) = 0; } break; case GST_STATE_CHANGE_READY_TO_NULL: break; default: break; } return ret; }
static gboolean gst_glimage_sink_set_caps (GstBaseSink * bsink, GstCaps * caps) { GstGLImageSink *glimage_sink; gint width; gint height; gboolean ok; gint fps_n, fps_d; gint par_n, par_d; gint display_par_n, display_par_d; guint display_ratio_num, display_ratio_den; GstVideoFormat format; GstStructure *structure; gboolean is_gl; GST_DEBUG ("set caps with %" GST_PTR_FORMAT, caps); glimage_sink = GST_GLIMAGE_SINK (bsink); structure = gst_caps_get_structure (caps, 0); if (gst_structure_has_name (structure, "video/x-raw-gl")) { is_gl = TRUE; format = GST_VIDEO_FORMAT_UNKNOWN; ok = gst_structure_get_int (structure, "width", &width); ok &= gst_structure_get_int (structure, "height", &height); } else { is_gl = FALSE; ok = gst_video_format_parse_caps (caps, &format, &width, &height); if (!ok) return FALSE; /* init colorspace conversion if needed */ ok = gst_gl_display_init_upload (glimage_sink->display, format, width, height, width, height); if (!ok) { GST_ELEMENT_ERROR (glimage_sink, RESOURCE, NOT_FOUND, GST_GL_DISPLAY_ERR_MSG (glimage_sink->display), (NULL)); return FALSE; } } 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); gst_gl_display_set_client_data (glimage_sink->display, glimage_sink->client_data); ok &= gst_video_parse_caps_framerate (caps, &fps_n, &fps_d); ok &= gst_video_parse_caps_pixel_aspect_ratio (caps, &par_n, &par_d); if (!ok) return FALSE; /* get display's PAR */ if (glimage_sink->par) { display_par_n = gst_value_get_fraction_numerator (glimage_sink->par); display_par_d = gst_value_get_fraction_denominator (glimage_sink->par); } else { display_par_n = 1; display_par_d = 1; } ok = gst_video_calculate_display_ratio (&display_ratio_num, &display_ratio_den, width, height, par_n, par_d, display_par_n, display_par_d); if (!ok) return FALSE; if (height % display_ratio_den == 0) { GST_DEBUG ("keeping video height"); glimage_sink->window_width = (guint) gst_util_uint64_scale_int (height, display_ratio_num, display_ratio_den); glimage_sink->window_height = height; } else if (width % display_ratio_num == 0) { GST_DEBUG ("keeping video width"); glimage_sink->window_width = width; glimage_sink->window_height = (guint) gst_util_uint64_scale_int (width, display_ratio_den, display_ratio_num); } else { GST_DEBUG ("approximating while keeping video height"); glimage_sink->window_width = (guint) gst_util_uint64_scale_int (height, display_ratio_num, display_ratio_den); glimage_sink->window_height = height; } GST_DEBUG ("scaling to %dx%d", glimage_sink->window_width, glimage_sink->window_height); GST_VIDEO_SINK_WIDTH (glimage_sink) = width; GST_VIDEO_SINK_HEIGHT (glimage_sink) = height; glimage_sink->is_gl = is_gl; glimage_sink->width = width; glimage_sink->height = height; glimage_sink->fps_n = fps_n; glimage_sink->fps_d = fps_d; glimage_sink->par_n = par_n; glimage_sink->par_d = par_d; if (!glimage_sink->window_id && !glimage_sink->new_window_id) gst_x_overlay_prepare_xwindow_id (GST_X_OVERLAY (glimage_sink)); return TRUE; }
static gboolean gst_glimage_sink_propose_allocation (GstBaseSink * bsink, GstQuery * query) { GstGLImageSink *glimage_sink = GST_GLIMAGE_SINK (bsink); GstBufferPool *pool; GstStructure *config; GstCaps *caps; guint size; gboolean need_pool; GstStructure *gl_context; gchar *platform, *gl_apis; gpointer handle; if (!_ensure_gl_setup (glimage_sink)) return FALSE; gst_query_parse_allocation (query, &caps, &need_pool); if (caps == NULL) goto no_caps; if ((pool = glimage_sink->pool)) gst_object_ref (pool); if (pool != NULL) { GstCaps *pcaps; /* we had a pool, check caps */ GST_DEBUG_OBJECT (glimage_sink, "check existing pool caps"); config = gst_buffer_pool_get_config (pool); gst_buffer_pool_config_get_params (config, &pcaps, &size, NULL, NULL); if (!gst_caps_is_equal (caps, pcaps)) { GST_DEBUG_OBJECT (glimage_sink, "pool has different caps"); /* different caps, we can't use this pool */ gst_object_unref (pool); pool = NULL; } gst_structure_free (config); } if (pool == NULL && need_pool) { GstVideoInfo info; if (!gst_video_info_from_caps (&info, caps)) goto invalid_caps; GST_DEBUG_OBJECT (glimage_sink, "create new pool"); pool = gst_gl_buffer_pool_new (glimage_sink->context); /* the normal size of a frame */ size = info.size; config = gst_buffer_pool_get_config (pool); gst_buffer_pool_config_set_params (config, caps, size, 0, 0); if (!gst_buffer_pool_set_config (pool, config)) goto config_failed; } /* we need at least 2 buffer because we hold on to the last one */ gst_query_add_allocation_pool (query, pool, size, 2, 0); /* we also support various metadata */ gst_query_add_allocation_meta (query, GST_VIDEO_META_API_TYPE, 0); gst_object_unref (pool); gl_apis = gst_gl_api_to_string (gst_gl_context_get_gl_api (glimage_sink->context)); platform = gst_gl_platform_to_string (gst_gl_context_get_gl_platform (glimage_sink->context)); handle = (gpointer) gst_gl_context_get_gl_context (glimage_sink->context); gl_context = gst_structure_new ("GstVideoGLTextureUploadMeta", "gst.gl.GstGLContext", GST_GL_TYPE_CONTEXT, glimage_sink->context, "gst.gl.context.handle", G_TYPE_POINTER, handle, "gst.gl.context.type", G_TYPE_STRING, platform, "gst.gl.context.apis", G_TYPE_STRING, gl_apis, NULL); gst_query_add_allocation_meta (query, GST_VIDEO_GL_TEXTURE_UPLOAD_META_API_TYPE, gl_context); g_free (gl_apis); g_free (platform); gst_structure_free (gl_context); return TRUE; /* ERRORS */ no_caps: { GST_DEBUG_OBJECT (bsink, "no caps specified"); return FALSE; } invalid_caps: { GST_DEBUG_OBJECT (bsink, "invalid caps specified"); return FALSE; } config_failed: { GST_DEBUG_OBJECT (bsink, "failed setting config"); return FALSE; } }
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; }