%{

#include <glib-object.h>

#include <glib.h>

#include <stdio.h>

#include <string.h>

#include <stdlib.h>

#include "../gst_private.h"

#include "../gst-i18n-lib.h"

#include "../gstconfig.h"

#include "../gstparse.h"

#include "../gstinfo.h"

#include "../gsterror.h"

#include "../gsturi.h"

#include "../gstutils.h"

#include "../gstvalue.h"

#include "../gstchildproxy.h"

#include "types.h"

#include <glib_global.h>

#include <glib_object.h>

/* All error messages in this file are user-visible and need to be translated.

 * Don't start the message with a capital, and don't end them with a period,

 * as they will be presented inside a sentence/error.

 */

#define YYERROR_VERBOSE 1

#define YYLEX_PARAM scanner

typedef void* yyscan_t;

int _gst_parse_yylex (void * yylval_param , yyscan_t yyscanner);

int _gst_parse_yylex_init (yyscan_t scanner);

int _gst_parse_yylex_destroy (yyscan_t scanner);

struct yy_buffer_state * _gst_parse_yy_scan_string (char* , yyscan_t);

void _gst_parse_yypush_buffer_state (void * new_buffer ,yyscan_t yyscanner );

void _gst_parse_yypop_buffer_state (yyscan_t yyscanner );

#ifdef __GST_PARSE_TRACE

static guint __strings;

static guint __links;

static guint __chains;

gchar *

__gst_parse_strdup (gchar *org)

{

  gchar *ret; 

  __strings++;

  ret = g_strdup (org);

  /* g_print ("ALLOCATED STR   (%3u): %p %s\n", __strings, ret, ret); */

  return ret;

}

void

__gst_parse_strfree (gchar *str)

{

  if (str) {

    /* g_print ("FREEING STR     (%3u): %p %s\n", __strings - 1, str, str); */

    g_free (str);

    g_return_if_fail (__strings > 0);

    __strings--;

  }

}

link_t *__gst_parse_link_new ()

{

  link_t *ret;

  __links++;

  ret = g_new0 (link_t, 1);

  /* g_print ("ALLOCATED LINK  (%3u): %p\n", __links, ret); */

  return ret;

}

void

__gst_parse_link_free (link_t *data)

{

  if (data) {

    /* g_print ("FREEING LINK    (%3u): %p\n", __links - 1, data); */

    g_free (data);

    g_return_if_fail (__links > 0);

    __links--;

  }

}

chain_t *

__gst_parse_chain_new ()

{

  chain_t *ret;

  __chains++;

  ret = g_new0 (chain_t, 1);

  /* g_print ("ALLOCATED CHAIN (%3u): %p\n", __chains, ret); */

  return ret;

}

void

__gst_parse_chain_free (chain_t *data)

{

  /* g_print ("FREEING CHAIN   (%3u): %p\n", __chains - 1, data); */

  g_free (data);

  g_return_if_fail (__chains > 0);

  __chains--;

}

#endif /* __GST_PARSE_TRACE */

typedef struct {

  gchar *src_pad;

  gchar *sink_pad;

  GstElement *sink;

  GstCaps *caps;

  gulong signal_id;

  /* FIXME: need to connect to "disposed" signal to clean up,

   * but there is no such signal */

} DelayedLink;

typedef struct {

  GstElement *parent;

  gchar *name;

  gchar *value_str;

  gulong signal_id;

} DelayedSet;

/*** define SET_ERROR and ERROR macros/functions */

#ifdef G_HAVE_ISO_VARARGS

#  define SET_ERROR(error, type, ...) \

G_STMT_START { \

  GST_CAT_ERROR (GST_CAT_PIPELINE, __VA_ARGS__); \

  if ((error) && !*(error)) { \

    g_set_error ((error), GST_PARSE_ERROR, (type), __VA_ARGS__); \

  } \

} G_STMT_END

#  define ERROR(type, ...) \

  SET_ERROR (((graph_t *) graph)->error, (type), __VA_ARGS__ )

#elif defined(G_HAVE_GNUC_VARARGS)

#  define SET_ERROR(error, type, args...) \

G_STMT_START { \

  GST_CAT_ERROR (GST_CAT_PIPELINE, args ); \

  if ((error) && !*(error)) { \

    g_set_error ((error), GST_PARSE_ERROR, (type), args ); \

  } \

} G_STMT_END

#  define ERROR(type, args...) \

  SET_ERROR (((graph_t *) graph)->error,(type) , args )

#else

static inline void

SET_ERROR (GError **error, gint type, const char *format, ...)

{

  if (error) {

    if (*error) {

      g_warning ("error while parsing");

    } else {

      va_list varargs;

      char *string;

      va_start (varargs, format);

      string = g_strdup_vprintf (format, varargs);

      va_end (varargs);

      g_set_error (error, GST_PARSE_ERROR, type, string);

      g_free (string);

    }

  }

}

#endif /* G_HAVE_ISO_VARARGS */

/*** define YYPRINTF macro/function if we're debugging */

/* bison 1.35 calls this macro with side effects, we need to make sure the

   side effects work - crappy bison */

#ifndef GST_DISABLE_GST_DEBUG

#  define YYDEBUG 1

#  ifdef G_HAVE_ISO_VARARGS

/* #  define YYFPRINTF(a, ...) GST_CAT_DEBUG (GST_CAT_PIPELINE, __VA_ARGS__) */

#    define YYFPRINTF(a, ...) \

G_STMT_START { \

     gchar *temp = g_strdup_printf (__VA_ARGS__); \

     GST_CAT_LOG (GST_CAT_PIPELINE, temp); \

     g_free (temp); \

} G_STMT_END

#  elif defined(G_HAVE_GNUC_VARARGS)

#    define YYFPRINTF(a, args...) \

G_STMT_START { \

     gchar *temp = g_strdup_printf ( args ); \

     GST_CAT_LOG (GST_CAT_PIPELINE, temp); \

     g_free (temp); \

} G_STMT_END

#  else

static inline void

YYPRINTF(const char *format, ...)

{

  va_list varargs;

  gchar *temp;

  va_start (varargs, format);

  temp = g_strdup_vprintf (format, varargs);

  GST_CAT_LOG (GST_CAT_PIPELINE, "%s", temp);

  g_free (temp);

  va_end (varargs);

}

#  endif /* G_HAVE_ISO_VARARGS */

#endif /* GST_DISABLE_GST_DEBUG */

#define GST_BIN_MAKE(res, type, chainval, assign, free_string) \

G_STMT_START { \

  chain_t *chain = chainval; \

  GSList *walk; \

  GstBin *bin = (GstBin *) gst_element_factory_make (type, NULL); \

  if (!chain) { \

    SET_ERROR (((graph_t *) graph)->error, GST_PARSE_ERROR_EMPTY_BIN, \

        _("specified empty bin \"%s\", not allowed"), type); \

    g_slist_foreach (assign, (GFunc) gst_parse_strfree, NULL); \

    g_slist_free (assign); \

    gst_object_unref (bin); \

    if (free_string) \

      gst_parse_strfree (type); /* Need to clean up the string */ \

    YYERROR; \

  } else if (!bin) { \

    SET_ERROR (((graph_t *) graph)->error, GST_PARSE_ERROR_NO_SUCH_ELEMENT, \

        _("no bin \"%s\", skipping"), type); \

    g_slist_foreach (assign, (GFunc) gst_parse_strfree, NULL); \

    g_slist_free (assign); \

    res = chain; \

  } else { \

    for (walk = chain->elements; walk; walk = walk->next ) \

      gst_bin_add (bin, GST_ELEMENT (walk->data)); \

    g_slist_free (chain->elements); \

    chain->elements = g_slist_prepend (NULL, bin); \

    res = chain; \

    /* set the properties now */ \

    for (walk = assign; walk; walk = walk->next) \

      gst_parse_element_set ((gchar *) walk->data, GST_ELEMENT (bin), graph); \

    g_slist_free (assign); \

  } \

} G_STMT_END

#define MAKE_LINK(link, _src, _src_name, _src_pads, _sink, _sink_name, _sink_pads) \

G_STMT_START { \

  link = gst_parse_link_new (); \

  link->src = _src; \

  link->sink = _sink; \

  link->src_name = _src_name; \

  link->sink_name = _sink_name; \

  link->src_pads = _src_pads; \

  link->sink_pads = _sink_pads; \

  link->caps = NULL; \

} G_STMT_END

#define MAKE_REF(link, _src, _pads) \

G_STMT_START { \

  gchar *padname = _src; \

  GSList *pads = _pads; \

  if (padname) { \

    while (*padname != '.') padname++; \

    *padname = '\0'; \

    padname++; \

    if (*padname != '\0') \

      pads = g_slist_prepend (pads, gst_parse_strdup (padname)); \

  } \

  MAKE_LINK (link, NULL, _src, pads, NULL, NULL, NULL); \

} G_STMT_END

static void gst_parse_new_child(GstChildProxy *child_proxy, GObject *object,

                                gpointer data)

{

  DelayedSet *set = (DelayedSet *) data;

  GParamSpec *pspec;

  GValue v = { 0, }; 

  GstObject *target = NULL;

  GType value_type;

  if (gst_child_proxy_lookup (GST_OBJECT (set->parent), set->name, &target, &pspec)) { 

    value_type = G_PARAM_SPEC_VALUE_TYPE (pspec);

    GST_CAT_LOG (GST_CAT_PIPELINE, "parsing delayed property %s as a %s from %s", pspec->name,

      g_type_name (value_type), set->value_str);

    g_value_init (&v, value_type);

    if (gst_value_deserialize (&v, set->value_str)) {

      g_object_set_property (G_OBJECT (target), pspec->name, &v);

    }

    g_signal_handler_disconnect (child_proxy, set->signal_id);

    g_free(set->name);

    g_free(set->value_str);

    g_free(set);

  }

  if (G_IS_VALUE (&v))

    g_value_unset (&v);

  if (target)

    gst_object_unref (target);

  return;

}

static void

gst_parse_element_set (gchar *value, GstElement *element, graph_t *graph)

{

  GParamSpec *pspec;

  gchar *pos = value;

  GValue v = { 0, }; 

  GstObject *target = NULL;

  GType value_type;

  /* parse the string, so the property name is null-terminated an pos points

     to the beginning of the value */

  while (!g_ascii_isspace (*pos) && (*pos != '=')) pos++; 

  if (*pos == '=') { 

    *pos = '\0'; 

  } else { 

    *pos = '\0'; 

    pos++;

    while (g_ascii_isspace (*pos)) pos++; 

  } 

  pos++; 

  while (g_ascii_isspace (*pos)) pos++; 

  if (*pos == '"') {

    pos++;

    pos[strlen (pos) - 1] = '\0';

  }

  gst_parse_unescape (pos);

  if (gst_child_proxy_lookup (GST_OBJECT (element), value, &target, &pspec)) { 

    value_type = G_PARAM_SPEC_VALUE_TYPE (pspec); 

    GST_CAT_LOG (GST_CAT_PIPELINE, "parsing property %s as a %s", pspec->name,

      g_type_name (value_type));

    g_value_init (&v, value_type);

    if (!gst_value_deserialize (&v, pos))

      goto error;

    g_object_set_property (G_OBJECT (target), pspec->name, &v);

  } else { 

    /* do a delayed set */

    if (GST_IS_CHILD_PROXY (element)) {

      DelayedSet *data = g_new (DelayedSet, 1);

      data->parent = element;

      data->name = g_strdup(value);

      data->value_str = g_strdup(pos);

      data->signal_id = g_signal_connect(GST_OBJECT (element),"child-added", G_CALLBACK (gst_parse_new_child), data);

    }

    else {

      SET_ERROR (((graph_t *) graph)->error, GST_PARSE_ERROR_NO_SUCH_PROPERTY, \

          _("no property \"%s\" in element \"%s\""), value, \

          GST_ELEMENT_NAME (element));

    }

      }

out:

  gst_parse_strfree (value);

  if (G_IS_VALUE (&v))

    g_value_unset (&v);

  if (target)

    gst_object_unref (target);

  return;

error:

  SET_ERROR (((graph_t *) graph)->error, GST_PARSE_ERROR_COULD_NOT_SET_PROPERTY,

         _("could not set property \"%s\" in element \"%s\" to \"%s\""), 

	 value, GST_ELEMENT_NAME (element), pos); 

  goto out;

}

static inline void

gst_parse_free_link (link_t *link)

{

  gst_parse_strfree (link->src_name);

  gst_parse_strfree (link->sink_name);

  g_slist_foreach (link->src_pads, (GFunc) gst_parse_strfree, NULL);

  g_slist_foreach (link->sink_pads, (GFunc) gst_parse_strfree, NULL);

  g_slist_free (link->src_pads);

  g_slist_free (link->sink_pads);

  if (link->caps) gst_caps_unref (link->caps);

  gst_parse_link_free (link);  

}

static void

gst_parse_found_pad (GstElement *src, GstPad *pad, gpointer data)

{

  DelayedLink *link = (DelayedLink *) data;

  GST_CAT_INFO (GST_CAT_PIPELINE, "trying delayed linking %s:%s to %s:%s", 

                GST_STR_NULL (GST_ELEMENT_NAME (src)), GST_STR_NULL (link->src_pad),

                GST_STR_NULL (GST_ELEMENT_NAME (link->sink)), GST_STR_NULL (link->sink_pad));

  if (gst_element_link_pads_filtered (src, link->src_pad, link->sink,

      link->sink_pad, link->caps)) {

    /* do this here, we don't want to get any problems later on when

     * unlocking states */

    GST_CAT_DEBUG (GST_CAT_PIPELINE, "delayed linking %s:%s to %s:%s worked", 

               	   GST_STR_NULL (GST_ELEMENT_NAME (src)), GST_STR_NULL (link->src_pad),

               	   GST_STR_NULL (GST_ELEMENT_NAME (link->sink)), GST_STR_NULL (link->sink_pad));

    g_signal_handler_disconnect (src, link->signal_id);

    g_free (link->src_pad);

    g_free (link->sink_pad);

    if (link->caps) gst_caps_unref (link->caps);

    g_free (link);

  }

}

/* both padnames and the caps may be NULL */

static gboolean

gst_parse_perform_delayed_link (GstElement *src, const gchar *src_pad, 

                                GstElement *sink, const gchar *sink_pad,

                                GstCaps *caps)

{

  GList *templs = gst_element_class_get_pad_template_list (

      GST_ELEMENT_GET_CLASS (src));

  for (; templs; templs = templs->next) {

    GstPadTemplate *templ = (GstPadTemplate *) templs->data;

    if ((GST_PAD_TEMPLATE_DIRECTION (templ) == GST_PAD_SRC) &&

        (GST_PAD_TEMPLATE_PRESENCE(templ) == GST_PAD_SOMETIMES))

    {

      DelayedLink *data = g_new (DelayedLink, 1); 

      /* TODO: maybe we should check if src_pad matches this template's names */

      GST_CAT_DEBUG (GST_CAT_PIPELINE, "trying delayed link %s:%s to %s:%s", 

                     GST_STR_NULL (GST_ELEMENT_NAME (src)), GST_STR_NULL (src_pad),

                     GST_STR_NULL (GST_ELEMENT_NAME (sink)), GST_STR_NULL (sink_pad));

      data->src_pad = g_strdup (src_pad);

      data->sink = sink;

      data->sink_pad = g_strdup (sink_pad);

      if (caps) {

      	data->caps = gst_caps_copy (caps);

      } else {

      	data->caps = NULL;

      }

      data->signal_id = g_signal_connect (G_OBJECT (src), "pad-added", 

          G_CALLBACK (gst_parse_found_pad), data);

      return TRUE;

    }

  }

  return FALSE;

}

/*

 * performs a link and frees the struct. src and sink elements must be given

 * return values   0 - link performed

 *                 1 - link delayed

 *                <0 - error

 */

static gint

gst_parse_perform_link (link_t *link, graph_t *graph)

{

  GstElement *src = link->src;

  GstElement *sink = link->sink;

  GSList *srcs = link->src_pads;

  GSList *sinks = link->sink_pads;

  g_assert (GST_IS_ELEMENT (src));

  g_assert (GST_IS_ELEMENT (sink));

  GST_CAT_INFO (GST_CAT_PIPELINE,

      "linking %s:%s to %s:%s (%u/%u) with caps \"%" GST_PTR_FORMAT "\"", 

      GST_ELEMENT_NAME (src), link->src_name ? link->src_name : "(any)",

      GST_ELEMENT_NAME (sink), link->sink_name ? link->sink_name : "(any)",

      g_slist_length (srcs), g_slist_length (sinks), link->caps);

  if (!srcs || !sinks) {

    if (gst_element_link_pads_filtered (src,

        srcs ? (const gchar *) srcs->data : NULL, sink,

        sinks ? (const gchar *) sinks->data : NULL, link->caps)) {

      goto success;

    } else {

      if (gst_parse_perform_delayed_link (src,

          srcs ? (const gchar *) srcs->data : NULL,

          sink, sinks ? (const gchar *) sinks->data : NULL, link->caps)) {

	goto success;

      } else {

        goto error;

      }

    }

  }

  if (g_slist_length (link->src_pads) != g_slist_length (link->src_pads)) {

    goto error;

  }

  while (srcs && sinks) {

    const gchar *src_pad = (const gchar *) srcs->data;

    const gchar *sink_pad = (const gchar *) sinks->data;

    srcs = g_slist_next (srcs);

    sinks = g_slist_next (sinks);

    if (gst_element_link_pads_filtered (src, src_pad, sink, sink_pad,

        link->caps)) {

      continue;

    } else {

      if (gst_parse_perform_delayed_link (src, src_pad,

                                          sink, sink_pad,

					  link->caps)) {

	continue;

      } else {

        goto error;

      }

    }

  }

success:

  gst_parse_free_link (link);

  return 0;

error:

  SET_ERROR (((graph_t *) graph)->error, GST_PARSE_ERROR_LINK,

      _("could not link %s to %s"), GST_ELEMENT_NAME (src),

      GST_ELEMENT_NAME (sink));

  gst_parse_free_link (link);

  return -1;

}

static int yyerror (void *scanner, graph_t *graph, const char *s);

%}