# Elements and tags in an event input XML
<a name="elements-and-tags"></a>

This section lists all the elements and tags that could appear in the input element of an event XML. This section does not include exhaustive information about rules for if and when an element or tag can be included. For tips on some tags, see [Add dynamic playlist inputs](add-dynamic-playlist-inputs.md).

```
<href></href>
<version></version>
<product></product>
<input>
  <deblock_enable></deblock_enable>
  <deblock_strength></deblock_strength>
  <error_clear_time></error_clear_time>
  <failback_rule></failback_rule>
  <hot_backup_pair></hot_backup_pair>
  <input_label></input_label>
  <loop_source></loop_source>
  <name></name>
  <no_psi></no_psi>
  <order></order>
  <program_id></program_id>
  <service_name></service_name>
  <service_provider_name></service_provider_name>
  {{<image_inserter>}}
    <image_x></image_x>
    <image_y></image_y>
    <opacity></opacity>
    {{<image_inserter_input>}}
      <uri></uri>
      <username></username>
      <password></password>
      <interface></interface>
    {{</image_inserter_input>}}
  {{</image_inserter>}}
  {{<network_input>}}
    <enable_fec_rx></enable_fec_rx>
    <interface ></interface >
    <password></password>
    <quad></quad>
    <udp_igmp_source></udp_igmp_source>
    <uri></uri>
    <username></username>
  {{</network_input>}}
  {{<device_input>}}
    <channel></channel>
    <channel_type></channel_type>
    <device_id></device_id>
    <device_name></device_name>
    <device_number></device_number>
    <device_type></device_type>
    <input_format></input_format>
    {{<fec_settings>}}
      <udp_igmp_source></udp_igmp_source>
      <uri></uri>
    {{</fec_settings>}}
    {{<hdmi_settings>}}
      <input_format></input_format>
    {{</hdmi_settings>}}
    {{<sdi_settings>}}
      <input_format></input_format>
      <scte104_offset></scte104_offset>
    {{</sdi_settings>}}
  {{</device_input>}}
  {{<router_input>}}
    <input_number></input_number>
    <input_number_end></input_number_end>
    <quad></quad>
    <router_ip></router_ip>
    <router_type></router_type>
  {{</router_input>}}
  {{<file_input>}}
    <certificate_file></certificate_file>
    <interface></interface>
    <password></password>
    <uri></uri>
    <username></username>
  {{</file_input>}}
  {{<failover_condition>}}
    <description></description>
    <duration></duration>
    <order></order>
  {{</failover_condition>}}
  {{<video_selector>}}
    <color_space></color_space>
    <default_afd></default_afd>
    <name></name>
    <order></order>
    <pid></pid>
    <program_id></program_id>
  {{</video_selector>}}
  {{<audio_selector>}}
    <default_selection></default_selection>
    <external_audio_file_input></external_audio_file_input>
    <infer_external_filename></infer_external_filename>
    <language_code></language_code>
    <name></name>
    <offset></offset>
    <order></order>
    <pid></pid>
    <program_selection></program_selection>
    <strict_language_selection></strict_language_selection>
    <strict_pid_option></strict_pid_option>
    <track></track>
    <unwrap_smpte337></unwrap_smpte337>
  {{</audio_selector>}}
  {{<audio_selector_group>}}
    <audio_selector_name></audio_selector_name>
    <name></name>
  </audio_selector_group>
  <caption_selector>
    <order></order>
    <source_type></source_type>
    <language_code></language_code>
    {{<embedded_source_settings>}}
      <autodetect_scte20></autodetect_scte20>
      <source_608_channel_number> </source_608_channel_number>
      <source_608_track_number ></source_608_track_number>
      <upconvert_608_to_708></upconvert_608_to_708>
    {{</embedded_source_settings>}}
    {{<file_source_settings>}}
      <time_delta></time_delta>
      <upconvert_608_to_708></upconvert_608_to_708>
      {{<source_file>}}
        <certificate_file></certificate_file>
        <interface></interface>
        <password></password>
        <uri></uri>
        <username></username>
      {{</source_file>}}
    {{</file_source_settings>}}
    {{<teletext_source_settings>}}
      <page_number></page_number>
    {{</teletext_source_settings>}}
    {{<dvb_sub_source_settings>}}
      <pid></pid>
    {{</dvb_sub_source_settings>}}
    <scte27_source_settings>
      <pid></pid>
    {{</scte27_source_settings>}}
  {{</caption_selector>}}
  {{<input_clipping>}}
    <end_timecode></end_timecode>
    <order></order>
    <start_timecode></start_timecode>
  {{</input_clipping>}}
```

Broken down into individual components, you can see:


|  Function of code excerpt  |  Example code excerpt  | 
| --- | --- | 
| Various tags |  <pre>    <href></href><br /><version></version><br /><product></product><br /><input><br />  <deblock_enable></deblock_enable><br />  <deblock_strength></deblock_strength><br />  <error_clear_time></error_clear_time><br />  <failback_rule></failback_rule><br />  <hot_backup_pair></hot_backup_pair><br />  <input_label></input_label><br />  <loop_source></loop_source><br />  <name></name><br />  <no_psi></no_psi>{{}}<br />  <order></order><br />  <program_id></program_id><br />  <service_name></service_name><br />  <service_provider_name></service_provider_name></pre>  | 
| Image inserter for this input |  <pre>  {{<image_inserter>}}<br />    <image_x></image_x><br />    <image_y></image_y><br />    <opacity></opacity><br />    {{<image_inserter_input>}}<br />      <uri></uri><br />      <username></username><br />      <password></password><br />      <interface></interface><br />    {{</image_inserter_input>}}<br />  {{</image_inserter>}}</pre>  | 
| Input source |  <pre>  {{<network_input>}}<br />    <enable_fec_rx></enable_fec_rx><br />    <interface ></interface ><br />    <password></password><br />    <quad></quad><br />    <udp_igmp_source></udp_igmp_source><br />    <uri></uri><br />    <username></username><br />  {{</network_input>}}<br />  {{<device_input>}}<br />    <channel></channel><br />    <channel_type></channel_type><br />    <device_id></device_id><br />    <device_name></device_name><br />    <device_number></device_number><br />    <device_type></device_type><br />    <input_format></input_format><br />    {{<fec_settings>}}<br />      <udp_igmp_source></udp_igmp_source><br />      <uri></uri><br />    {{</fec_settings>}}<br />    {{<hdmi_settings>}}<br />      <input_format></input_format><br />    {{</hdmi_settings>}}<br />    {{<sdi_settings>}}<br />      <input_format></input_format><br />      <scte104_offset></scte104_offset><br />    {{</sdi_settings>}}<br />  {{</device_input>}}<br />  {{<router_input>}}<br />    <input_number></input_number><br />    <input_number_end></input_number_end><br />    <quad></quad><br />    <router_ip></router_ip><br />    <router_type></router_type><br />  {{</router_input>}}<br />  {{<file_input>}}<br />    <certificate_file></certificate_file><br />    <interface></interface><br />    <password></password><br />    <uri></uri><br />    <username></username><br />  {{</file_input>}}</pre>  | 
| Failover |  <pre>  {{<failover_condition>}}<br />    <description></description><br />    <duration></duration><br />    <order></order><br />  {{</failover_condition>}}</pre>  | 
| Source video  |  <pre>  {{<video_selector>}}<br />    <color_space></color_space><br />    <default_afd></default_afd><br />    <name></name><br />    <order></order><br />    <pid></pid><br />    <program_id></program_id><br />  {{</video_selector>}}</pre>  | 
| Source audio |  <pre>  {{<audio_selector>}}<br />    <default_selection></default_selection><br />    <external_audio_file_input></external_audio_file_input><br />    <infer_external_filename></infer_external_filename><br />    <language_code></language_code><br />    <name></name><br />    <offset></offset><br />    <order></order><br />    <pid></pid><br />    <program_selection></program_selection><br />    <strict_language_selection></strict_language_selection><br />    <strict_pid_option></strict_pid_option><br />    <track></track><br />    <unwrap_smpte337></unwrap_smpte337><br />  {{</audio_selector>}}<br />  {{<audio_selector_group>}}<br />    <audio_selector_name></audio_selector_name><br />    <name></name><br />  </audio_selector_group></pre>  | 
| Source captions |  <pre>  <caption_selector><br />    <order></order><br />    <source_type></source_type><br />    <language_code></language_code><br />    {{<embedded_source_settings>}}<br />      <autodetect_scte20></autodetect_scte20><br />      <source_608_channel_number> </source_608_channel_number><br />      <source_608_track_number ></source_608_track_number><br />      <upconvert_608_to_708></upconvert_608_to_708><br />    {{</embedded_source_settings>}}<br />    {{<file_source_settings>}}<br />      <time_delta></time_delta><br />      <upconvert_608_to_708></upconvert_608_to_708><br />      {{<source_file>}}<br />        <certificate_file></certificate_file><br />        <interface></interface><br />        <password></password><br />        <uri></uri><br />        <username></username><br />      {{</source_file>}}<br />    {{</file_source_settings>}}<br />    {{<teletext_source_settings>}}<br />      <page_number></page_number><br />    {{</teletext_source_settings>}}<br />    {{<dvb_sub_source_settings>}}<br />      <pid></pid><br />    {{</dvb_sub_source_settings>}}<br />    <scte27_source_settings><br />      <pid></pid><br />    {{</scte27_source_settings>}}<br />  {{</caption_selector>}}</pre>  | 
| Input clipping |  <pre>  {{<input_clipping>}}<br />    <end_timecode></end_timecode><br />    <order></order><br />    <start_timecode></start_timecode><br />  {{</input_clipping>}}</pre>  |