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debugutils: Add a gst_debug_bin_to_dot_data() method
This provides the dot file as a string, rather than dumping to a file. https://bugzilla.gnome.org/show_bug.cgi?id=741425
This commit is contained in:
Arun Raghavan
parent
ed15125086
commit
8fadde9d23
2 changed files with 120 additions and 73 deletions
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@ -137,7 +137,7 @@ debug_dump_get_element_params (GstElement * element)
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static void
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debug_dump_pad (GstPad * pad, const gchar * color_name,
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const gchar * element_name, GstDebugGraphDetails details, FILE * out,
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const gchar * element_name, GstDebugGraphDetails details, GString * str,
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const gint indent)
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{
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GstPadTemplate *pad_templ;
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@ -191,12 +191,12 @@ debug_dump_pad (GstPad * pad, const gchar * color_name,
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GST_OBJECT_FLAG_IS_SET (pad, GST_PAD_FLAG_BLOCKING) ? 'B' : 'b';
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pad_flags[3] = '\0';
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fprintf (out,
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g_string_append_printf (str,
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"%s %s_%s [color=black, fillcolor=\"%s\", label=\"%s\\n[%c][%s]%s\", height=\"0.2\", style=\"%s\"];\n",
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spc, element_name, pad_name, color_name, GST_OBJECT_NAME (pad),
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activation_mode[pad->mode], pad_flags, task_mode, style_name);
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} else {
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fprintf (out,
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g_string_append_printf (str,
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"%s %s_%s [color=black, fillcolor=\"%s\", label=\"%s\", height=\"0.2\", style=\"%s\"];\n",
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spc, element_name, pad_name, color_name, GST_OBJECT_NAME (pad),
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style_name);
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@ -207,7 +207,7 @@ debug_dump_pad (GstPad * pad, const gchar * color_name,
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static void
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debug_dump_element_pad (GstPad * pad, GstElement * element,
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GstDebugGraphDetails details, FILE * out, const gint indent)
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GstDebugGraphDetails details, GString * str, const gint indent)
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{
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GstElement *target_element;
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GstPad *target_pad, *tmp_pad;
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@ -235,15 +235,17 @@ debug_dump_element_pad (GstPad * pad, GstElement * element,
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target_element_name = g_strdup ("");
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}
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debug_dump_pad (target_pad, color_name, target_element_name, details,
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out, indent);
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str, indent);
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/* src ghostpad relationship */
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pad_name = debug_dump_make_object_name (GST_OBJECT (pad));
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target_pad_name = debug_dump_make_object_name (GST_OBJECT (target_pad));
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if (dir == GST_PAD_SRC) {
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fprintf (out, "%s%s_%s -> %s_%s [style=dashed, minlen=0]\n", spc,
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g_string_append_printf (str,
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"%s%s_%s -> %s_%s [style=dashed, minlen=0]\n", spc,
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target_element_name, target_pad_name, element_name, pad_name);
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} else {
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fprintf (out, "%s%s_%s -> %s_%s [style=dashed, minlen=0]\n", spc,
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g_string_append_printf (str,
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"%s%s_%s -> %s_%s [style=dashed, minlen=0]\n", spc,
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element_name, pad_name, target_element_name, target_pad_name);
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}
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g_free (target_pad_name);
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@ -261,7 +263,7 @@ debug_dump_element_pad (GstPad * pad, GstElement * element,
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GST_PAD_SINK) ? "#aaaaff" : "#cccccc");
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}
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/* pads */
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debug_dump_pad (pad, color_name, element_name, details, out, indent);
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debug_dump_pad (pad, color_name, element_name, details, str, indent);
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g_free (element_name);
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}
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@ -357,7 +359,7 @@ debug_dump_describe_caps (GstCaps * caps, GstDebugGraphDetails details)
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static void
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debug_dump_element_pad_link (GstPad * pad, GstElement * element,
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GstDebugGraphDetails details, FILE * out, const gint indent)
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GstDebugGraphDetails details, GString * str, const gint indent)
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{
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GstElement *peer_element;
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GstPad *peer_pad;
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@ -414,13 +416,14 @@ debug_dump_element_pad_link (GstPad * pad, GstElement * element,
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/* pad link */
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if (media) {
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fprintf (out, "%s%s_%s -> %s_%s [label=\"%s\"]\n", spc,
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g_string_append_printf (str, "%s%s_%s -> %s_%s [label=\"%s\"]\n", spc,
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element_name, pad_name, peer_element_name, peer_pad_name, media);
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g_free (media);
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} else if (media_src && media_sink) {
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/* dot has some issues with placement of head and taillabels,
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* we need an empty label to make space */
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fprintf (out, "%s%s_%s -> %s_%s [labeldistance=\"10\", labelangle=\"0\", "
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g_string_append_printf (str,
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"%s%s_%s -> %s_%s [labeldistance=\"10\", labelangle=\"0\", "
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"label=\" \", "
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"taillabel=\"%s\", headlabel=\"%s\"]\n",
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spc, element_name, pad_name, peer_element_name, peer_pad_name,
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@ -428,7 +431,7 @@ debug_dump_element_pad_link (GstPad * pad, GstElement * element,
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g_free (media_src);
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g_free (media_sink);
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} else {
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fprintf (out, "%s%s_%s -> %s_%s\n", spc,
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g_string_append_printf (str, "%s%s_%s -> %s_%s\n", spc,
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element_name, pad_name, peer_element_name, peer_pad_name);
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}
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@ -444,7 +447,7 @@ debug_dump_element_pad_link (GstPad * pad, GstElement * element,
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static void
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debug_dump_element_pads (GstIterator * pad_iter, GstPad * pad,
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GstElement * element, GstDebugGraphDetails details, FILE * out,
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GstElement * element, GstDebugGraphDetails details, GString * str,
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const gint indent, guint * src_pads, guint * sink_pads)
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{
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GValue item = { 0, };
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@ -456,7 +459,7 @@ debug_dump_element_pads (GstIterator * pad_iter, GstPad * pad,
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switch (gst_iterator_next (pad_iter, &item)) {
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case GST_ITERATOR_OK:
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pad = g_value_get_object (&item);
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debug_dump_element_pad (pad, element, details, out, indent);
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debug_dump_element_pad (pad, element, details, str, indent);
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dir = gst_pad_get_direction (pad);
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if (dir == GST_PAD_SRC)
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(*src_pads)++;
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@ -484,8 +487,8 @@ debug_dump_element_pads (GstIterator * pad_iter, GstPad * pad,
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* Helper for gst_debug_bin_to_dot_file() to recursively dump a pipeline.
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*/
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static void
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debug_dump_element (GstBin * bin, GstDebugGraphDetails details, FILE * out,
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const gint indent)
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debug_dump_element (GstBin * bin, GstDebugGraphDetails details,
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GString * str, const gint indent)
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{
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GstIterator *element_iter, *pad_iter;
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gboolean elements_done, pads_done;
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@ -514,12 +517,14 @@ debug_dump_element (GstBin * bin, GstDebugGraphDetails details, FILE * out,
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param_name = debug_dump_get_element_params (GST_ELEMENT (element));
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}
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/* elements */
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fprintf (out, "%ssubgraph cluster_%s {\n", spc, element_name);
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fprintf (out, "%s fontname=\"Bitstream Vera Sans\";\n", spc);
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fprintf (out, "%s fontsize=\"8\";\n", spc);
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fprintf (out, "%s style=filled;\n", spc);
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fprintf (out, "%s color=black;\n\n", spc);
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fprintf (out, "%s label=\"%s\\n%s%s%s\";\n", spc,
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g_string_append_printf (str, "%ssubgraph cluster_%s {\n", spc,
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element_name);
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g_string_append_printf (str, "%s fontname=\"Bitstream Vera Sans\";\n",
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spc);
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g_string_append_printf (str, "%s fontsize=\"8\";\n", spc);
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g_string_append_printf (str, "%s style=filled;\n", spc);
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g_string_append_printf (str, "%s color=black;\n\n", spc);
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g_string_append_printf (str, "%s label=\"%s\\n%s%s%s\";\n", spc,
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G_OBJECT_TYPE_NAME (element), GST_OBJECT_NAME (element),
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(state_name ? state_name : ""), (param_name ? param_name : "")
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);
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@ -535,30 +540,30 @@ debug_dump_element (GstBin * bin, GstDebugGraphDetails details, FILE * out,
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src_pads = sink_pads = 0;
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if ((pad_iter = gst_element_iterate_sink_pads (element))) {
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debug_dump_element_pads (pad_iter, pad, element, details, out, indent,
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&src_pads, &sink_pads);
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debug_dump_element_pads (pad_iter, pad, element, details, str,
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indent, &src_pads, &sink_pads);
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gst_iterator_free (pad_iter);
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}
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if ((pad_iter = gst_element_iterate_src_pads (element))) {
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debug_dump_element_pads (pad_iter, pad, element, details, out, indent,
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&src_pads, &sink_pads);
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debug_dump_element_pads (pad_iter, pad, element, details, str,
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indent, &src_pads, &sink_pads);
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gst_iterator_free (pad_iter);
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}
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if (GST_IS_BIN (element)) {
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fprintf (out, "%s fillcolor=\"#ffffff\";\n", spc);
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g_string_append_printf (str, "%s fillcolor=\"#ffffff\";\n", spc);
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/* recurse */
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debug_dump_element (GST_BIN (element), details, out, indent + 1);
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debug_dump_element (GST_BIN (element), details, str, indent + 1);
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} else {
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if (src_pads && !sink_pads)
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fprintf (out, "%s fillcolor=\"#ffaaaa\";\n", spc);
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g_string_append_printf (str, "%s fillcolor=\"#ffaaaa\";\n", spc);
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else if (!src_pads && sink_pads)
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fprintf (out, "%s fillcolor=\"#aaaaff\";\n", spc);
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g_string_append_printf (str, "%s fillcolor=\"#aaaaff\";\n", spc);
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else if (src_pads && sink_pads)
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fprintf (out, "%s fillcolor=\"#aaffaa\";\n", spc);
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g_string_append_printf (str, "%s fillcolor=\"#aaffaa\";\n", spc);
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else
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fprintf (out, "%s fillcolor=\"#ffffff\";\n", spc);
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g_string_append_printf (str, "%s fillcolor=\"#ffffff\";\n", spc);
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}
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fprintf (out, "%s}\n\n", spc);
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g_string_append_printf (str, "%s}\n\n", spc);
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if ((pad_iter = gst_element_iterate_pads (element))) {
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pads_done = FALSE;
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while (!pads_done) {
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@ -567,7 +572,7 @@ debug_dump_element (GstBin * bin, GstDebugGraphDetails details, FILE * out,
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pad = g_value_get_object (&item2);
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if (gst_pad_is_linked (pad)) {
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if (gst_pad_get_direction (pad) == GST_PAD_SRC) {
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debug_dump_element_pad_link (pad, element, details, out,
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debug_dump_element_pad_link (pad, element, details, str,
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indent);
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} else {
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GstPad *peer_pad = gst_pad_get_peer (pad);
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@ -576,7 +581,7 @@ debug_dump_element (GstBin * bin, GstDebugGraphDetails details, FILE * out,
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if (!GST_IS_GHOST_PAD (peer_pad)
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&& GST_IS_PROXY_PAD (peer_pad)) {
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debug_dump_element_pad_link (peer_pad, NULL, details,
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out, indent);
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str, indent);
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}
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gst_object_unref (peer_pad);
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}
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@ -612,6 +617,80 @@ debug_dump_element (GstBin * bin, GstDebugGraphDetails details, FILE * out,
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gst_iterator_free (element_iter);
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}
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static void
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debug_dump_header (GstBin * bin, GstDebugGraphDetails details, GString * str)
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{
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gchar *state_name = NULL;
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gchar *param_name = NULL;
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if (details & GST_DEBUG_GRAPH_SHOW_STATES) {
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state_name = debug_dump_get_element_state (GST_ELEMENT (bin));
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}
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if (details & GST_DEBUG_GRAPH_SHOW_NON_DEFAULT_PARAMS) {
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param_name = debug_dump_get_element_params (GST_ELEMENT (bin));
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}
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/* write header */
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g_string_append_printf (str,
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"digraph pipeline {\n"
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" rankdir=LR;\n"
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" fontname=\"sans\";\n"
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" fontsize=\"10\";\n"
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" labelloc=t;\n"
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" nodesep=.1;\n"
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" ranksep=.2;\n"
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" label=\"<%s>\\n%s%s%s\";\n"
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" node [style=filled, shape=box, fontsize=\"9\", fontname=\"sans\", margin=\"0.0,0.0\"];\n"
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" edge [labelfontsize=\"6\", fontsize=\"9\", fontname=\"monospace\"];\n"
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" \n"
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" legend [\n"
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" pos=\"0,0!\",\n"
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" margin=\"0.05,0.05\",\n"
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" label=\"Legend\\lElement-States: [~] void-pending, [0] null, [-] ready, [=] paused, [>] playing\\lPad-Activation: [-] none, [>] push, [<] pull\\lPad-Flags: [b]locked, [f]lushing, [b]locking; upper-case is set\\lPad-Task: [T] has started task, [t] has paused task\\l\"\n,"
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" ];"
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"\n", G_OBJECT_TYPE_NAME (bin), GST_OBJECT_NAME (bin),
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(state_name ? state_name : ""), (param_name ? param_name : "")
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);
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if (state_name)
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g_free (state_name);
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if (param_name)
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g_free (param_name);
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}
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static void
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debug_dump_footer (GString * str)
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{
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g_string_append_printf (str, "}\n");
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}
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/*
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* gst_debug_bin_to_dot_data:
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* @bin: the top-level pipeline that should be analyzed
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*
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* To aid debugging applications one can use this method to obtain the whole
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* network of gstreamer elements that form the pipeline into an dot file.
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* This data can be processed with graphviz to get an image.
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*
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* Returns: (transfer full): a string containing the pipeline in graphviz
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* dot format.
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*/
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gchar *
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gst_debug_bin_to_dot_data (GstBin * bin, GstDebugGraphDetails details)
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{
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GString *str;
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g_return_if_fail (GST_IS_BIN (bin));
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str = g_string_new (NULL);
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debug_dump_header (bin, details, str);
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debug_dump_element (bin, details, str, 1);
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debug_dump_footer (str);
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return g_string_free (str, FALSE);
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}
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/*
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* gst_debug_bin_to_dot_file:
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* @bin: the top-level pipeline that should be analyzed
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@ -646,47 +725,14 @@ gst_debug_bin_to_dot_file (GstBin * bin, GstDebugGraphDetails details,
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priv_gst_dump_dot_dir, file_name);
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if ((out = fopen (full_file_name, "wb"))) {
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gchar *state_name = NULL;
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gchar *param_name = NULL;
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gchar *buf;
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if (details & GST_DEBUG_GRAPH_SHOW_STATES) {
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state_name = debug_dump_get_element_state (GST_ELEMENT (bin));
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}
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if (details & GST_DEBUG_GRAPH_SHOW_NON_DEFAULT_PARAMS) {
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param_name = debug_dump_get_element_params (GST_ELEMENT (bin));
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}
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buf = gst_debug_bin_to_dot_data (bin, details);
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fputs (buf, out);
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/* write header */
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fprintf (out,
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"digraph pipeline {\n"
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" rankdir=LR;\n"
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" fontname=\"sans\";\n"
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" fontsize=\"10\";\n"
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" labelloc=t;\n"
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" nodesep=.1;\n"
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" ranksep=.2;\n"
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" label=\"<%s>\\n%s%s%s\";\n"
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" node [style=filled, shape=box, fontsize=\"9\", fontname=\"sans\", margin=\"0.0,0.0\"];\n"
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" edge [labelfontsize=\"6\", fontsize=\"9\", fontname=\"monospace\"];\n"
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" \n"
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" legend [\n"
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" pos=\"0,0!\",\n"
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" margin=\"0.05,0.05\",\n"
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" label=\"Legend\\lElement-States: [~] void-pending, [0] null, [-] ready, [=] paused, [>] playing\\lPad-Activation: [-] none, [>] push, [<] pull\\lPad-Flags: [b]locked, [f]lushing, [b]locking; upper-case is set\\lPad-Task: [T] has started task, [t] has paused task\\l\"\n,"
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" ];"
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"\n", G_OBJECT_TYPE_NAME (bin), GST_OBJECT_NAME (bin),
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(state_name ? state_name : ""), (param_name ? param_name : "")
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);
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if (state_name)
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g_free (state_name);
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if (param_name)
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g_free (param_name);
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debug_dump_element (bin, details, out, 1);
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/* write footer */
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fprintf (out, "}\n");
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g_free (buf);
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fclose (out);
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GST_INFO ("wrote bin graph to : '%s'", full_file_name);
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} else {
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GST_WARNING ("Failed to open file '%s' for writing: %s", full_file_name,
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@ -51,6 +51,7 @@ typedef enum {
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/********** pipeline graphs **********/
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gchar * gst_debug_bin_to_dot_data (GstBin *bin, GstDebugGraphDetails details);
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void gst_debug_bin_to_dot_file (GstBin *bin, GstDebugGraphDetails details, const gchar *file_name);
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void gst_debug_bin_to_dot_file_with_ts (GstBin *bin, GstDebugGraphDetails details, const gchar *file_name);
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