Post ID for theme ajax video thumbnail integration

Where does it looks for hidden field, on the whole page or anything in particular?

As you are using the hook, you could print a hidden field in your wpuf_get_vide_thumbnail function? May be that would work?

Ya it uses jQuery(‘#post_ID’).val() to find the id. I tried using ID; ?> instead but it keeps giving me the same ID for every new post.

Heres the entire JS incase it helps. Sorry for the length.

<script type="text/javascript">
			var wpzVideoUrlInputTimeout,
					//wpzValidIframeRegex = /<iframe[^>]* src="[^"]+"[^>]*><\/iframe>/i; // This isn't super strict... It just loosely checks to see if the string kinda looks like it contains an embed code.
					wpzValidIframeRegex = /(http:\/\/|https:\/\/)(m.youtube|www.youtube|www.vimeo|youtu|vimeo)/i; // This isn't super strict... It just loosely checks to see if the string kinda looks like it contains an embed code.

					jQuery(function($){
				$('<div id="wpz_autothumb"><small id="wpz_ajax_loading" style="display:none">Loading...</small><p id="wpz_autothumb_error" style="display:none"><?php _e('<strong>ERROR!</strong><br/>Either an invalid embed code was provided, or there is no thumbnail available for the specified video&hellip;<br/><small><strong>REMINDER:</strong> You can always manually upload a featured image via the WordPress Media Uploader.</small>', 'wpzoom'); ?></p><p id="wpzoom_autothumb_preview"><img src=""/><small id="wpz_usethis" class="button">Use This as the Featured Image</small></p></div>')
					.insertAfter('#wpzoom_post_embed_code');

				$('#wpzoom_autothumb_preview img').on('load', function(){
					$('#wpz_ajax_loading, #wpz_autothumb_error').hide();
					$('#wpzoom_autothumb_preview').animate({height:'show',opacity:'show'});
				});

				$('#wpzoom_post_embed_code').on('input', function(){
					clearTimeout(wpzVideoUrlInputTimeout);
					val = $.trim($('#wpzoom_post_embed_code').val());
					replace =0;
					if(val.indexOf('m.')) { val = val.replace('m.',''); replace++; }
					if(val.indexOf('/#')) { val = val.replace('/#',''); replace++; }
					if(replace > 0){
							jQuery('#wpzoom_post_embed_code').val(val); 
					}
					if('' != val && wpzValidIframeRegex.test(val)) {
						$('#wpz_ajax_loading').fadeIn();

						wpzVideoUrlInputTimeout = setTimeout(WPZVideoUrlOnInput, 1000);
						WPZUseThisOnClick();
					} else {
						$('#wpz_ajax_loading, #wpz_autothumb_error').hide();

						WPZRemovePreviewImage();
					}
				}).triggerHandler('input');

				$('#wpz_usethis').on('click', WPZUseThisOnClick);

				$('#postimagediv').on('click', '#remove-post-thumbnail', WPZEnableSetFeaturedButton);
			});

			// This is called onInput if an actual embed code is provided
			function WPZVideoUrlOnInput() {
				var embed = jQuery.trim(jQuery('#wpzoom_post_embed_code').val());
				
				jQuery.ajax({
					url: ajaxurl,
					type: 'post',
					data: { action: 'wpzoom_autothumb_get', wpzoom_autothumb_embedcode: embed, wpzoom_autothumb_postid: jQuery('#post_ID').val() },
					dataType: 'json',
					complete: function(xhr,status){
						var response = xhr.responseText;

						if(response == 'ERROR') {
							WPZRemovePreviewImage();
							jQuery('#wpz_ajax_loading').hide();
							jQuery('#wpz_autothumb_error').show();
							return;
						}

						response = jQuery.parseJSON(response);

						var thumb_url = typeof response.thumb_url !== 'undefined' ? response.thumb_url : '',
								is_featured = typeof response.is_already_featured !== 'undefined' ? response.is_already_featured : false;

						if(thumb_url != '') {
							jQuery('#wpzoom_autothumb_preview img').attr('src', '' + thumb_url);

							if(is_featured == true) {
								WPZDisableSetFeaturedButton();
							} else {
								WPZEnableSetFeaturedButton();
							}
						} else {
							WPZRemovePreviewImage();
						}

						return;
					}
				});

				jQuery.ajax({
					url: ajaxurl,
					type: 'post',
					data: { action: 'wpzoom_autotitle_get',wpzoom_autothumb_embedcode: embed },
					dataType: 'json',
					complete: function(xhr,status){
						var response = xhr.responseText;

						if(response == 'ERROR') {
							jQuery('#title').val('Error');
							return;
						}

						response = jQuery.parseJSON(response);
						
						
						var title = typeof response.title !== 'undefined' ? response.title : '',
								is_featured = typeof response.is_already_featured !== 'undefined' ? response.is_already_featured : false;

						if(title != '') {
							jQuery('#title').val(title);

						} else {
							jQuery('#title').val('no title');
						}

						return;
					}
				});

				return;
			}

			// This is called when the "Use This as the Featured Image" button is clicked
			function WPZUseThisOnClick() {
				if('' != (embed = jQuery.trim(jQuery('#wpzoom_post_embed_code').val()))) {
					jQuery.ajax({
						url: ajaxurl,
						type: 'post',
						data: {
						        action: 'wpzoom_autothumb_attach',
						        wpzoom_autothumb_embedcode: embed,
						        wpzoom_autothumb_postid: jQuery('#post_ID').val(),
						        wpzoom_autothumb_nonce: '<?php global $post; echo wp_create_nonce('wpzoom_attach_thumbnail-' . $post->ID); ?>'
									},
						dataType: 'text',
						complete: function(xhr,status){
							var response = jQuery.trim(xhr.responseText);

							if(response != 'false' && response > 0) {
								WPZSetAsThumbnail(response, '<?php echo wp_create_nonce('set_post_thumbnail-' . $post->ID); ?>');
							}

							return;
						}
					});
				}

				return;
			}

			// Enable the "Use This as the Featured Image" button
			function WPZEnableSetFeaturedButton() {
				jQuery('#wpz_usethis')
					.html('Use This as the Featured Image')
					.off('click', WPZUseThisOnClick)
					.on('click', WPZUseThisOnClick)
					.removeClass('button-disabled');
			}

			// Disable the "Use This as the Featured Image" button
			function WPZDisableSetFeaturedButton() {
				jQuery('#wpz_usethis')
					.html('This is the Featured Image')
					.off('click', WPZUseThisOnClick)
					.addClass('button-disabled');
			}

			// Hide/Remove the preview image
			function WPZRemovePreviewImage() {
				jQuery('#wpzoom_autothumb_preview').hide().removeAttr('src');
			}

			// Almost the same as the core WPSetAsThumbnail function
			function WPZSetAsThumbnail(id, nonce) {
				jQuery.post(ajaxurl, {
					action: 'set-post-thumbnail',
					post_id: jQuery('#post_ID').val(),
					thumbnail_id: id,
					_ajax_nonce: nonce,
					cookie: encodeURIComponent(document.cookie)
				}, function(str){
					var win = window.dialogArguments || opener || parent || top;

					if(str != '0') {
						win.WPSetThumbnailID(id);
						win.WPSetThumbnailHTML(str);
						WPZDisableSetFeaturedButton();
					}
				}
				);
			}
		</script>