/* copies the given caps */ static GstCaps * gst_video_convert_caps_remove_format_info (GstCaps * caps) { GstStructure *st; GstCapsFeatures *f; gint i, n; GstCaps *res; res = gst_caps_new_empty (); n = gst_caps_get_size (caps); for (i = 0; i < n; i++) { st = gst_caps_get_structure (caps, i); f = gst_caps_get_features (caps, i); /* If this is already expressed by the existing caps * skip this structure */ if (i > 0 && gst_caps_is_subset_structure_full (res, st, f)) continue; st = gst_structure_copy (st); /* Only remove format info for the cases when we can actually convert */ if (!gst_caps_features_is_any (f) && gst_caps_features_is_equal (f, GST_CAPS_FEATURES_MEMORY_SYSTEM_MEMORY)) gst_structure_remove_fields (st, "format", "colorimetry", "chroma-site", NULL); gst_caps_append_structure_full (res, st, gst_caps_features_copy (f)); } return res; }
static void print_caps (const GstCaps * caps, const gchar * pfx) { guint i; g_return_if_fail (caps != NULL); if (gst_caps_is_any (caps)) { n_print ("%sANY\n", pfx); return; } if (gst_caps_is_empty (caps)) { n_print ("%sEMPTY\n", pfx); return; } for (i = 0; i < gst_caps_get_size (caps); i++) { GstStructure *structure = gst_caps_get_structure (caps, i); GstCapsFeatures *features = gst_caps_get_features (caps, i); if (features && (gst_caps_features_is_any (features) || !gst_caps_features_is_equal (features, GST_CAPS_FEATURES_MEMORY_SYSTEM_MEMORY))) { gchar *features_string = gst_caps_features_to_string (features); n_print ("%s%s(%s)\n", pfx, gst_structure_get_name (structure), features_string); g_free (features_string); } else { n_print ("%s%s\n", pfx, gst_structure_get_name (structure)); } gst_structure_foreach (structure, print_field, (gpointer) pfx); } }
static GstCaps * gst_video_scale_transform_caps (GstBaseTransform * trans, GstPadDirection direction, GstCaps * caps, GstCaps * filter) { GstCaps *ret; GstStructure *structure; GstCapsFeatures *features; gint i, n; GST_DEBUG_OBJECT (trans, "Transforming caps %" GST_PTR_FORMAT " in direction %s", caps, (direction == GST_PAD_SINK) ? "sink" : "src"); ret = gst_caps_new_empty (); n = gst_caps_get_size (caps); for (i = 0; i < n; i++) { structure = gst_caps_get_structure (caps, i); features = gst_caps_get_features (caps, i); /* If this is already expressed by the existing caps * skip this structure */ if (i > 0 && gst_caps_is_subset_structure_full (ret, structure, features)) continue; /* make copy */ structure = gst_structure_copy (structure); /* If the features are non-sysmem we can only do passthrough */ if (!gst_caps_features_is_any (features) && gst_caps_features_is_equal (features, GST_CAPS_FEATURES_MEMORY_SYSTEM_MEMORY)) { gst_structure_set (structure, "width", GST_TYPE_INT_RANGE, 1, G_MAXINT, "height", GST_TYPE_INT_RANGE, 1, G_MAXINT, NULL); /* if pixel aspect ratio, make a range of it */ if (gst_structure_has_field (structure, "pixel-aspect-ratio")) { gst_structure_set (structure, "pixel-aspect-ratio", GST_TYPE_FRACTION_RANGE, 1, G_MAXINT, G_MAXINT, 1, NULL); } } gst_caps_append_structure_full (ret, structure, gst_caps_features_copy (features)); } if (filter) { GstCaps *intersection; intersection = gst_caps_intersect_full (filter, ret, GST_CAPS_INTERSECT_FIRST); gst_caps_unref (ret); ret = intersection; } GST_DEBUG_OBJECT (trans, "returning caps: %" GST_PTR_FORMAT, ret); return ret; }
static gchar * debug_dump_describe_caps (GstCaps * caps, GstDebugGraphDetails details) { gchar *media = NULL; if (details & GST_DEBUG_GRAPH_SHOW_CAPS_DETAILS) { if (gst_caps_is_any (caps) || gst_caps_is_empty (caps)) { media = gst_caps_to_string (caps); } else { GString *str = NULL; guint i; guint slen = 0; for (i = 0; i < gst_caps_get_size (caps); i++) { slen += 25 + STRUCTURE_ESTIMATED_STRING_LEN (gst_caps_get_structure (caps, i)); } str = g_string_sized_new (slen); for (i = 0; i < gst_caps_get_size (caps); i++) { GstCapsFeatures *features = __gst_caps_get_features_unchecked (caps, i); GstStructure *structure = gst_caps_get_structure (caps, i); g_string_append (str, gst_structure_get_name (structure)); if (features && (gst_caps_features_is_any (features) || !gst_caps_features_is_equal (features, GST_CAPS_FEATURES_MEMORY_SYSTEM_MEMORY))) { g_string_append_c (str, '('); priv_gst_caps_features_append_to_gstring (features, str); g_string_append_c (str, ')'); } g_string_append (str, "\\l"); gst_structure_foreach (structure, string_append_field, (gpointer) str); } media = g_string_free (str, FALSE); } } else { if (GST_CAPS_IS_SIMPLE (caps)) media = g_strdup (gst_structure_get_name (gst_caps_get_structure (caps, 0))); else media = g_strdup ("*"); } return media; }
gboolean gst_gl_mixer_process_textures (GstGLMixer * mix, GstBuffer * outbuf) { guint i; GList *walk; guint out_tex, out_tex_target; gboolean res = TRUE; guint array_index = 0; GstVideoFrame out_frame; GstElement *element = GST_ELEMENT (mix); GstVideoAggregator *vagg = GST_VIDEO_AGGREGATOR (mix); GstGLMixerClass *mix_class = GST_GL_MIXER_GET_CLASS (mix); GstGLMixerPrivate *priv = mix->priv; gboolean to_download = gst_caps_features_is_equal (GST_CAPS_FEATURES_MEMORY_SYSTEM_MEMORY, gst_caps_get_features (mix->out_caps, 0)); GstMapFlags out_map_flags = GST_MAP_WRITE; GST_TRACE ("Processing buffers"); to_download |= !gst_is_gl_memory (gst_buffer_peek_memory (outbuf, 0)); if (!to_download) out_map_flags |= GST_MAP_GL; if (!gst_video_frame_map (&out_frame, &vagg->info, outbuf, out_map_flags)) { return FALSE; } if (!to_download) { out_tex = *(guint *) out_frame.data[0]; out_tex_target = ((GstGLMemory *) gst_buffer_peek_memory (outbuf, 0))->tex_target; } else { GST_INFO ("Output Buffer does not contain correct memory, " "attempting to wrap for download"); if (!mix->download) mix->download = gst_gl_download_new (mix->context); gst_gl_download_set_format (mix->download, &out_frame.info); out_tex = mix->out_tex_id; out_tex_target = GL_TEXTURE_2D; } GST_OBJECT_LOCK (mix); walk = element->sinkpads; i = mix->frames->len; g_ptr_array_set_size (mix->frames, element->numsinkpads); for (; i < element->numsinkpads; i++) mix->frames->pdata[i] = g_slice_new0 (GstGLMixerFrameData); while (walk) { GstGLMixerPad *pad = GST_GL_MIXER_PAD (walk->data); GstGLMixerPadClass *pad_class = GST_GL_MIXER_PAD_GET_CLASS (pad); GstVideoAggregatorPad *vaggpad = walk->data; GstGLMixerFrameData *frame; frame = g_ptr_array_index (mix->frames, array_index); frame->pad = pad; frame->texture = 0; walk = g_list_next (walk); if (vaggpad->buffer != NULL) { g_assert (pad_class->upload_buffer); if (pad->gl_buffer) gst_buffer_unref (pad->gl_buffer); pad->gl_buffer = pad_class->upload_buffer (mix, frame, vaggpad->buffer); GST_DEBUG_OBJECT (pad, "uploaded buffer %" GST_PTR_FORMAT " from buffer %" GST_PTR_FORMAT, pad->gl_buffer, vaggpad->buffer); } ++array_index; } g_mutex_lock (&priv->gl_resource_lock); if (!priv->gl_resource_ready) g_cond_wait (&priv->gl_resource_cond, &priv->gl_resource_lock); if (!priv->gl_resource_ready) { g_mutex_unlock (&priv->gl_resource_lock); GST_ERROR_OBJECT (mix, "fbo used to render can't be created, do not run process_textures"); res = FALSE; goto out; } mix_class->process_textures (mix, mix->frames, out_tex); g_mutex_unlock (&priv->gl_resource_lock); if (to_download) { if (!gst_gl_download_perform_with_data (mix->download, out_tex, out_tex_target, out_frame.data)) { GST_ELEMENT_ERROR (mix, RESOURCE, NOT_FOUND, ("%s", "Failed to download video frame"), (NULL)); res = FALSE; goto out; } } out: i = 0; walk = GST_ELEMENT (mix)->sinkpads; while (walk) { GstGLMixerPad *pad = GST_GL_MIXER_PAD (walk->data); if (pad->upload) gst_gl_upload_release_buffer (pad->upload); walk = g_list_next (walk); i++; } GST_OBJECT_UNLOCK (mix); gst_video_frame_unmap (&out_frame); return res; }