C++ (Cpp) ks_guid_to_string примеры использования

Пример #1

Файл: kshelpers.c Проект: Lachann/gst-plugins-bad

gchar *
ks_property_set_to_string (const GUID * guid)
{
  guint i;

  for (i = 0;
      i < sizeof (known_property_sets) / sizeof (known_property_sets[0]); i++) {
    if (IsEqualGUID (guid, &known_property_sets[i].guid))
      return g_strdup_printf ("KSPROPSETID_%s", known_property_sets[i].name);
  }

  return ks_guid_to_string (guid);
}

Пример #2

Файл: ksvideohelpers.c Проект: shikhars387/gst-plugins-bad

GList *
ks_video_probe_filter_for_caps (HANDLE filter_handle)
{
  GList *ret = NULL;
  gulong pin_count;
  guint pin_id;

  if (!ks_filter_get_pin_property (filter_handle, 0, KSPROPSETID_Pin,
          KSPROPERTY_PIN_CTYPES, &pin_count, sizeof (pin_count), NULL))
    goto beach;

  GST_DEBUG ("pin_count = %d", pin_count);

  for (pin_id = 0; pin_id < pin_count; pin_id++) {
    KSPIN_COMMUNICATION pin_comm;
    KSPIN_DATAFLOW pin_flow;
    GUID pin_cat;

    if (!ks_filter_get_pin_property (filter_handle, pin_id, KSPROPSETID_Pin,
            KSPROPERTY_PIN_COMMUNICATION, &pin_comm, sizeof (pin_comm), NULL))
      continue;

    if (!ks_filter_get_pin_property (filter_handle, pin_id, KSPROPSETID_Pin,
            KSPROPERTY_PIN_DATAFLOW, &pin_flow, sizeof (pin_flow), NULL))
      continue;

    if (!ks_filter_get_pin_property (filter_handle, pin_id, KSPROPSETID_Pin,
            KSPROPERTY_PIN_CATEGORY, &pin_cat, sizeof (pin_cat), NULL))
      continue;

    GST_DEBUG ("pin[%u]: pin_comm=%d, pin_flow=%d", pin_id, pin_comm, pin_flow);

    if (pin_flow == KSPIN_DATAFLOW_OUT &&
        memcmp (&pin_cat, &PINNAME_CAPTURE, sizeof (GUID)) == 0) {
      KSMULTIPLE_ITEM *items;

      if (ks_filter_get_pin_property_multi (filter_handle, pin_id,
              KSPROPSETID_Pin, KSPROPERTY_PIN_DATARANGES, &items, NULL)) {
        KSDATARANGE *range = (KSDATARANGE *) (items + 1);
        guint i;

        for (i = 0; i < items->Count; i++) {
          if (IsEqualGUID (&range->MajorFormat, &KSDATAFORMAT_TYPE_VIDEO)) {
            KsVideoMediaType *entry;
            gpointer src_vscc, src_format;
            GstStructure *media_structure;

            entry = g_new0 (KsVideoMediaType, 1);
            entry->pin_id = pin_id;

            entry->range = g_malloc (range->FormatSize);
            memcpy ((gpointer) entry->range, range, range->FormatSize);

            if (IsEqualGUID (&range->Specifier, &FORMAT_VideoInfo)) {
              KS_DATARANGE_VIDEO *vr = (KS_DATARANGE_VIDEO *) entry->range;

              src_vscc = &vr->ConfigCaps;
              src_format = &vr->VideoInfoHeader;

              entry->format_size = sizeof (vr->VideoInfoHeader);
              entry->sample_size = vr->VideoInfoHeader.bmiHeader.biSizeImage;
            } else if (IsEqualGUID (&range->Specifier, &FORMAT_VideoInfo2)) {
              KS_DATARANGE_VIDEO2 *vr = (KS_DATARANGE_VIDEO2 *) entry->range;

              src_vscc = &vr->ConfigCaps;
              src_format = &vr->VideoInfoHeader;

              entry->format_size = sizeof (vr->VideoInfoHeader);
              entry->sample_size = vr->VideoInfoHeader.bmiHeader.biSizeImage;
            } else if (IsEqualGUID (&range->Specifier, &FORMAT_MPEGVideo)) {
              /* Untested and probably wrong... */
              KS_DATARANGE_MPEG1_VIDEO *vr =
                  (KS_DATARANGE_MPEG1_VIDEO *) entry->range;

              src_vscc = &vr->ConfigCaps;
              src_format = &vr->VideoInfoHeader;

              entry->format_size = sizeof (vr->VideoInfoHeader);
              entry->sample_size =
                  vr->VideoInfoHeader.hdr.bmiHeader.biSizeImage;
            } else if (IsEqualGUID (&range->Specifier, &FORMAT_MPEG2Video)) {
              /* Untested and probably wrong... */
              KS_DATARANGE_MPEG2_VIDEO *vr =
                  (KS_DATARANGE_MPEG2_VIDEO *) entry->range;

              src_vscc = &vr->ConfigCaps;
              src_format = &vr->VideoInfoHeader;

              entry->format_size = sizeof (vr->VideoInfoHeader);
              entry->sample_size =
                  vr->VideoInfoHeader.hdr.bmiHeader.biSizeImage;
            } else {
              gchar *guid_str;

              guid_str = ks_guid_to_string (&range->Specifier);
              GST_DEBUG ("pin[%u]: ignoring unknown specifier GUID %s",
                  pin_id, guid_str);
              g_free (guid_str);

              ks_video_media_type_free (entry);
              entry = NULL;
            }

            if (entry != NULL) {
              g_assert (entry->sample_size != 0);

              memcpy ((gpointer) & entry->vscc, src_vscc, sizeof (entry->vscc));

              entry->format = g_malloc (entry->format_size);
              memcpy (entry->format, src_format, entry->format_size);

              media_structure =
                  ks_video_format_to_structure (range->SubFormat,
                  range->MajorFormat);

              if (media_structure == NULL) {
                g_warning ("ks_video_format_to_structure returned NULL");
                ks_video_media_type_free (entry);
                entry = NULL;
              } else if (ks_video_append_video_stream_cfg_fields
                  (media_structure, &entry->vscc)) {
                entry->translated_caps = gst_caps_new_empty ();
                gst_caps_append_structure (entry->translated_caps,
                    media_structure);
              } else {
                gst_structure_free (media_structure);
                ks_video_media_type_free (entry);
                entry = NULL;
              }

              if (entry != NULL)
                ret = g_list_prepend (ret, entry);
            }
          }

          /* REVISIT: Each KSDATARANGE should start on a 64-bit boundary */
          range = (KSDATARANGE *) (((guchar *) range) + range->FormatSize);
        }

        g_free (items);
      }
    }
  }

  if (ret != NULL) {
    ret = g_list_reverse (ret);
    ret = ks_video_media_type_list_remove_duplicates (ret);
  }

beach:
  return ret;
}