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authorSacha Chua <sacha@sachachua.com>2021-12-07 17:26:55 -0500
committerSacha Chua <sacha@sachachua.com>2021-12-07 17:26:55 -0500
commitfaf62c69d499934b6de0840b0a6bdc3db4b79994 (patch)
tree60b2c5f6f0d283a59d25ed097735f7f17e795592
parentadfb8f85cc0243f183084538e5d5f0402ed4f8ea (diff)
downloademacsconf-el-faf62c69d499934b6de0840b0a6bdc3db4b79994.tar.xz
emacsconf-el-faf62c69d499934b6de0840b0a6bdc3db4b79994.zip
HTML-related functions
-rw-r--r--emacsconf-html.el516
1 files changed, 516 insertions, 0 deletions
diff --git a/emacsconf-html.el b/emacsconf-html.el
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+
+(defcustom conf-media-base-url "https://media.emacsconf.org/" "Base URL for published media files."
+ :type 'string
+ :group 'emacsconf)
+
+(defcustom conf-main-extensions '(".org" ".odp" ".pdf" ".el" "--main.vtt" "--main_fr.vtt" "--main_ja.vtt" "--chapters.vtt" "--main--chapters.vtt")
+ "Extensions to list on public pages."
+ :type '(repeat string)
+ :group 'emacsconf)
+
+(defcustom conf-protected-extensions '(".en.srv2" ".srt")
+ "Extensions to list in the staging area."
+ :group 'emacsconf)
+(defcustom conf-public-media-directory nil "Can be over TRAMP" :type 'string :group 'emacsconf)
+(defcustom conf-protected-media-directory nil "Can be over TRAMP" :type 'string :group 'emacsconf)
+
+(defun conf-index-card (talk &optional extensions)
+ "Format an HTML card for TALK, linking the files in EXTENSIONS."
+ (let* ((video-slug (plist-get talk :video-slug))
+ (video-file (and (plist-get talk :video-file) (expand-file-name (plist-get talk :video-file) conf-captions-directory)))
+ (video (conf-index-card-video (or (plist-get talk :video-id) "mainVideo") video-file talk extensions)))
+ ;; Add extra information to the talk
+ (setq talk
+ (append
+ talk
+ (list
+ :video-html (plist-get video :video)
+ :chapter-list (or (plist-get video :chapter-list) "")
+ :resources (plist-get video :resources)
+ :extra (or (plist-get talk :extra) "")
+ :speaker-info (or (plist-get talk :speakers) ""))))
+ (conf-replace-plist-in-string
+ talk
+ "<div class=\"vid\">${video-html}${resources}${extra}${chapter-list}</div>")))
+
+(defun conf-index-card-video (video-id video-file talk extensions)
+ (let* ((wiki-caption-dir (expand-file-name
+ "captions"
+ (expand-file-name
+ (plist-get talk :conf-year)
+ conf-directory)))
+ (chapter-info (and video-file
+ (conf-make-chapter-strings
+ (expand-file-name
+ (concat (file-name-base video-file) "--chapters.vtt")
+ wiki-caption-dir)
+ (plist-get talk :track-base-url))))
+ (info
+ (append
+ (list
+ :source-src
+ (when video-file
+ (if (plist-get talk :public)
+ (format "%s%s/%s" conf-media-base-url (plist-get talk :conf-year)
+ (file-name-nondirectory video-file))
+ (file-name-nondirectory video-file)))
+ :captions
+ (and video-file
+ (conf-video-subtitle-tracks
+ (expand-file-name (concat (file-name-base video-file) ".vtt") wiki-caption-dir)
+ (or (plist-get talk :track-base-url)
+ (plist-get talk :base-url))))
+ :chapter-track (or (plist-get chapter-info :track) "")
+ :chapter-list (or (plist-get chapter-info :html) "")
+ :video-id video-id
+ :video-duration (if (and video-file (file-exists-p video-file))
+ (format-seconds "%m:%.2s" (/ (conf-get-file-duration-ms video-file) 1000)))
+ :video-file-size (if (and video-file (file-exists-p video-file))
+ (file-size-human-readable (file-attribute-size (file-attributes video-file))))
+ :other-files (mapconcat (lambda (s) (concat "<li>" s "</li>"))
+ (conf-link-file-formats-as-list talk (or extensions conf-published-extensions))
+ "")
+ :poster (and video-file (format "https://media.emacsconf.org/%s/%s.png" (plist-get talk :conf-year) (file-name-base video-file)))
+ :toobnix-info (if (plist-get talk :toobnix-url)
+ (format
+ "<li><a href=\"%s\">View on Toobnix</a></li>"
+ (plist-get talk :toobnix-url))
+ ""))
+
+ talk)))
+ (list
+
+ :video
+ (conf-replace-plist-in-string
+ info
+ (if (and video-file (file-exists-p video-file))
+ "<video controls preload=\"metadata\" poster=\"${poster}\" id=\"${video-id}\"><source src=\"${source-src}\" />${captions}${chapter-track}</video>"
+ "The video for \"${title}\" will be posted here when available. You can also subscribe to the <a href=\"https://lists.gnu.org/mailman/listinfo/emacsconf-discuss\">emacsconf-discuss mailing list</a> for updates."))
+ :chapter-list (plist-get chapter-info :html)
+ :resources
+ (conf-replace-plist-in-string
+ (append info
+ (list :video-download
+ (if video-file
+ (conf-replace-plist-in-string
+ info
+ "<li><a href=\"${source-src}\">Download .webm video (${video-duration}, ${video-file-size}B)</a></li>")
+ "")))
+ "<div class=\"files resources\"><ul>${video-download}${other-files}${toobnix-info}</ul></div>"))))
+
+(when (featurep 'memoize)
+ (memoize #'conf-get-file-duration-ms))
+
+(defun conf-create-talk-pages (conf-info)
+ (interactive (list (conf-get-talk-info)))
+ "Populate year/talks/*.md files.
+These should include the nav and schedule files, which will be
+rewritten as needed. After they are generated, they should be all
+right to manually edit to include things like additional
+resources."
+ ;; TODO: No longer necessary?
+ (require 's)
+ (mapc (lambda (o)
+ (when (plist-get o :talk-id)
+ (let ((filename (expand-file-name (format "%s.md" (plist-get o :slug))
+ (expand-file-name "talks" (expand-file-name conf-year conf-directory)))))
+ (unless (file-exists-p filename)
+ (with-temp-file filename
+ (let ((meta "!meta")
+ (title (or (plist-get o :title) ""))
+ (speakers (or (plist-get o :speakers) ""))
+ (talk-id (or (plist-get o :talk-id) ""))
+ (slug (or (plist-get o :slug) ""))
+ (info (or (plist-get o :info) "")))
+ (insert
+ (s-lex-format "[[${meta} title=\"${title}\"]]
+[[${meta} copyright=\"Copyright &copy; ${conf-year} ${speakers}\"]]
+[[!inline pages=\"internal(${conf-year}/info/${slug}-nav)\" raw=\"yes\"]]
+
+<!-- You can manually edit this file to update the abstract, add links, etc. --->\n
+
+# ${title}
+${speakers}
+
+${info}
+
+[[!inline pages=\"internal(${conf-year}/info/${slug}-schedule)\" raw=\"yes\"]]
+
+[[!inline pages=\"internal(${conf-year}/info/${slug}-nav)\" raw=\"yes\"]]
+"))))))))
+ conf-info))
+
+(defun conf-wiki-talk-resources (o)
+ (setq o (append (list :base-url
+ (concat conf-media-base-url (plist-get o :conf-year) "/")
+ :track-base-url
+ (format "/%s/captions/" (plist-get o :conf-year)))
+ o))
+ (concat
+ (if (plist-get o :qa-public) "# Talk\n\n" "")
+ (conf-index-card o conf-main-extensions)
+ (if (plist-get o :qa-public)
+ (concat "\n\n# Q&A\n\n"
+ (conf-index-card (append
+ (list
+ :public 1
+ :video-id "qanda"
+ :toobnix-url nil
+ :video-file (expand-file-name
+ (concat (file-name-sans-extension (plist-get o :video-slug)) "--answers.webm")
+ conf-captions-directory))
+ o)
+ (list "--answers.vtt" "--answers--chapters.vtt")))
+ "")))
+
+
+
+(defun conf-format-talk-schedule-info (o)
+ (let ((friendly (concat "/" conf-year "/talks/" (plist-get o :slug) ))
+ (timestamp (org-timestamp-from-string (plist-get o :scheduled))))
+ (concat
+ "[[!toc ]]\n"
+
+ (if (plist-get o :q-and-a) (format "Q&A: %s \n" (plist-get o :q-and-a)) "")
+ (if (member conf-publishing-phase '(program schedule)) (concat "Status: " (plist-get o :status-label) " \n") "")
+ "Duration: " (or (plist-get o :video-duration)
+ (concat (plist-get o :duration) " minutes"))
+ " \n"
+ (if (and (member conf-publishing-phase '(program schedule))
+ (not (member (plist-get o :status) '("DONE" "CANCELLED" "STARTED"))))
+ (let ((start (org-timestamp-to-time (org-timestamp-split-range timestamp)))
+ (end (org-timestamp-to-time (org-timestamp-split-range timestamp t))))
+ (format
+ "<div class=\"times\" start=\"%s\" end=\"%s\">%s<br /><a href=\"/2021/\">Find out how to watch and participate</a></div>"
+ (format-time-string "%Y-%m-%dT%H:%M:%SZ" start t)
+ (format-time-string "%Y-%m-%dT%H:%M:%SZ" end t)
+ (string-join (conf-timezone-strings o) "<br />")))
+ "")
+ "\n"
+ (if (plist-get o :alternate-apac)
+ (format "[[!inline pages=\"internal(%s/inline-alternate)\" raw=\"yes\"]] \n" conf-year)
+ "")
+ "\n"
+ "If you have questions and the speaker has not indicated public contact information on this page, please feel free to e-mail us at <emacsconf-submit@gnu.org> and we'll forward your question to the speaker.\n\n"
+ (if (plist-get o :public) (conf-wiki-talk-resources o) "")
+ "\n# Description\n\n")))
+
+(defun conf-generate-schedule-page (talk)
+ (interactive (list (conf-get-talk-info-for-subtree)))
+ (with-temp-file (expand-file-name (format "%s-schedule.md" (plist-get talk :slug))
+ (expand-file-name "info" (expand-file-name conf-year conf-directory)))
+ (insert
+ "<!-- Automatically generated by conf-create-info-pages -->\n\n"
+ (conf-format-talk-schedule-info talk) "\n")))
+
+(defun conf-generate-info-pages ()
+ (interactive)
+ "Populate year/info/*-nav and *-schedule.md files."
+ ;; TODO: No longer necessary?
+ (require 's)
+ (let* ((talks (seq-remove (lambda (o) (string= (plist-get o :status) "CANCELLED"))
+ (conf-filter-talks (conf-get-talk-info))))
+ (next-talks (cdr talks))
+ (prev-talks (cons nil talks)))
+ (while talks
+ (let* ((o (pop talks))
+ (next-talk (conf-format-talk-link (pop next-talks)))
+ (prev-talk (conf-format-talk-link (pop prev-talks)))
+ (friendly (concat "/" conf-year "/talks/" (plist-get o :slug) ))
+ (nav-links (format "Back to the [[schedule]] \n%s%s"
+ (if prev-talk (format "Previous: %s \n" prev-talk) "")
+ (if next-talk (format "Next: %s \n" next-talk) ""))))
+ (with-temp-file (expand-file-name (format "%s-nav.md" (plist-get o :slug))
+ (expand-file-name "info" (expand-file-name conf-year conf-directory)))
+ (insert nav-links))
+ (conf-generate-schedule-page o)))))
+
+(defun conf-generate-talks-page (conf-info)
+ (interactive "p")
+ (let ((info conf-info))
+ (with-temp-buffer
+ (find-file "talk-details.md")
+ (erase-buffer)
+ (insert (format "<table><thead><th>Duration</th><th>Title</th><th>Speakers</th></thead><tbody>%s</tbody></table>"
+ (mapconcat
+ (lambda (o)
+ (let* ((title (plist-get o :title))
+ (speakers (plist-get o :speakers)))
+ (if (null (plist-get o :talk-id))
+ (format "<tr><td colspan=\"3\">%s</td></tr>" (conf-format-talk-link o))
+ (format "<tr><td>%s</td><td>%s</td><td>%s</td><tr>"
+ (plist-get o :duration)
+ (conf-format-talk-link o)
+ (plist-get o :speakers)))))
+ info "\n")))
+ (save-buffer))))
+
+(defun conf-generate-main-schedule (&optional filename)
+ (interactive)
+ (with-temp-file (expand-file-name "schedule-details.md" (expand-file-name conf-year conf-directory))
+ (insert (conf-format-talk-info-as-schedule (conf-get-talk-info)))))
+
+(defun conf-format-talk-link (talk)
+ (and talk (if (plist-get talk :talk-id)
+ (format "<a href=\"/%s/talks/%s\">%s</a>"
+ conf-year
+ (plist-get talk :slug)
+ (plist-get talk :title))
+ (plist-get talk :title))))
+
+
+(defun conf-format-talk-info-as-schedule (info)
+ (let* ((talks (seq-filter
+ (lambda (o)
+ (and (not (string= (plist-get o :status) "CANCELLED"))
+ (plist-get o :speakers)))
+ (conf-filter-talks info)))
+ (captioned (seq-filter (lambda (o) (plist-get o :captioner)) talks))
+ (cancelled (seq-filter (lambda (o) (string= (plist-get o :status) "CANCELLED")) info))
+ (received (seq-remove (lambda (o)
+ (plist-get o :captioner))
+ talks)))
+ (format "<div>%d talks total: %d captioned (%d min), %d waiting for captions (%d min)</div>
+<table width=\"100%%\">%s%s</table>%s"
+ (length talks)
+ (length captioned)
+ (apply '+ (mapcar (lambda (info) (string-to-number (plist-get info :duration))) captioned))
+ (length received)
+ (apply '+ (mapcar (lambda (info) (string-to-number (plist-get info :duration)))
+ received))
+ (pcase conf-publishing-phase
+ ('program "<tr><th>Status</th><th>Title<th><th>Speaker(s)</th></tr>")
+ ('schedule "<tr><th>Status</th><th>Start</th><th>Title</th><th>Speaker(s)</th></tr>")
+ ('resources "<tr><th>Title</th><th>Speaker(s)</th><th>Resources</th></tr>"))
+ (mapconcat
+ (lambda (o)
+ (let* ((time-fmt "%l:%M %p")
+ (timestamp (org-timestamp-from-string (plist-get o :scheduled)))
+ (start (if timestamp (format-time-string time-fmt (org-timestamp-to-time (org-timestamp-split-range timestamp))) ""))
+ (end (if timestamp (format-time-string time-fmt (org-timestamp-to-time (org-timestamp-split-range timestamp t))) ""))
+ (title (plist-get o :title))
+ (status (pcase (plist-get o :status)
+ ("CAPTIONED" "captioned")
+ ("PREREC_RECEIVED" "received")
+ ("DONE" "done")
+ ("STARTED" "now playing")
+ (_ "")))
+ (speakers (or (plist-get o :speakers) "")))
+ (pcase conf-publishing-phase
+ ('program
+ (if (eq (plist-get o :type) 'headline)
+ (format "<tr><td colspan=\"3\"><strong>%s<strong></td></tr>"
+ (if (plist-get o :slug)
+ (conf-format-talk-link o)
+ title))
+ (format "<tr><td>%s</td><td>%s</td><td>%s</td></tr>"
+ status
+ (conf-format-talk-link o) speakers)))
+ ('schedule
+ (if (eq (plist-get o :type) 'headline)
+ (format "<tr><td colspan=\"4\"><strong>%s<strong></td></tr>"
+ (if (plist-get o :slug)
+ (conf-format-talk-link o)
+ title))
+ (format "<tr><td>%s</td><td width=100>~%s</td><td>%s</td><td>%s</td></tr>"
+ status
+ start (conf-format-talk-link o) speakers)))
+ ('resources
+ (if (eq (plist-get o :type) 'headline)
+ (format "<tr><td colspan=\"3\"><strong>%s<strong></td></tr>"
+ (if (plist-get o :slug)
+ (conf-format-talk-link o)
+ title))
+ (format "<tr><td>%s</td><td>%s</td><td><ul>%s</ul></td></tr>"
+ (conf-format-talk-link o) speakers
+ (mapconcat (lambda (s) (concat "<li>" s "</li>"))
+ (conf-link-file-formats-as-list
+ (append o
+ (list :base-url (format "%s%s/" conf-media-base-url conf-year)))
+ (append conf-published-extensions '("--main.webm")))
+ "")))))))
+ (seq-remove (lambda (o) (string= (plist-get o :status) "CANCELLED"))
+ (cdr info))
+ "\n")
+ (if (> (length cancelled) 0)
+ (format "<div class=\"cancelled\">Cancelled:<ul>%s</ul></div>"
+ (mapconcat (lambda (talk) (format "<li><a href=\"/%s/talks/%s\">%s</a> - %s</li>"
+ conf-year
+ (plist-get talk :slug)
+ (plist-get talk :title)
+ (plist-get talk :speakers)))
+ cancelled "\n"))
+ ""))))
+
+(defun conf-timezone-strings (o)
+ (let* ((timestamp (org-timestamp-from-string (plist-get o :scheduled)))
+ (start (org-timestamp-to-time (org-timestamp-split-range timestamp)))
+ (end (org-timestamp-to-time (org-timestamp-split-range timestamp t))))
+ (mapcar
+ (lambda (tz)
+ (format "%s - %s"
+ (format-time-string "%A, %b %e %Y, ~%l:%M %p"
+ start tz)
+ (format-time-string "%l:%M %p %Z"
+ end tz)))
+ conf-timezones)))
+
+(defun conf-make-protected-index (filename)
+ (interactive (list (expand-file-name "index.html" conf-protected-media-directory)))
+ (setq conf-info (conf-get-talk-info))
+ (with-temp-file filename
+ (let* ((talks (seq-filter (lambda (o) (plist-get o :video-file)) (conf-filter-talks conf-info)))
+ (received (seq-remove (lambda (o) (plist-get o :captioner)) talks))
+ (captioned (seq-filter (lambda (o) (plist-get o :captioner)) talks)))
+ (insert
+ "<html><meta charset=\"UTF-8\"><body>"
+ (format "<h1>Talks to be captioned (%d minutes)</h1><ul class=\"videos\">"
+ (apply '+ (seq-map (lambda (talk) (string-to-number (plist-get talk :duration)))
+ received)))
+ (mapconcat
+ (lambda (f)
+ (format "<li><strong>%s</strong><br />%s<br />%s</li>"
+ (plist-get f :title)
+ (plist-get f :speakers)
+ (conf-index-card
+ (append
+ f
+ (list :extra
+ (if (plist-get f :caption-note) (concat "<div class=\"caption-note\">" (plist-get f :caption-note) "</div>") "")))
+ (append conf-main-extensions conf-protected-extensions))))
+ received
+ "\n")
+ (format
+ "</ul><h1>%d captioned talks ready for enjoyment (%d minutes)</h1>"
+ (length captioned)
+ (apply '+ (seq-map (lambda (talk) (string-to-number (plist-get talk :duration))) captioned)))
+ "<ol class=\"videos\">"
+ (mapconcat (lambda (f) (format "<li><strong>%s</strong><br />%s<br />%s</li>"
+ (plist-get f :title)
+ (plist-get f :speakers)
+ (conf-index-card f conf-main-extensions)))
+ captioned "\n")
+ "</ol>"
+ (if (file-exists-p (expand-file-name "include-in-index.html" conf-captions-directory))
+ (with-temp-buffer (insert-file-contents (expand-file-name "include-in-index.html" conf-captions-directory)) (buffer-string))
+ "")
+ "</body></html>"))))
+
+(defun conf-make-public-index (filename)
+ (interactive (list (expand-file-name "index.html" conf-public-media-directory)))
+ (setq conf-info (conf-get-talk-info))
+ (with-temp-file filename
+ (insert
+ "<html><body>"
+ "<h1>" conf-name " " conf-year "</h1>"
+ "<div class=\"m3u\"><a href=\"index.m3u\">M3U playlist for playing in MPV and other players</a></div>"
+ "<ol class=\"videos\">"
+ (mapconcat (lambda (f) (format "<li>%s</li>" (conf-index-card f '(".org" ".pdf" "--main.vtt"))))
+ (conf-public-talks conf-info)
+ "\n")
+ "</ol>"
+ (if (file-exists-p (expand-file-name "include-in-index.html" conf-captions-directory))
+ (with-temp-buffer (insert-file-contents (expand-file-name "include-in-index.html" conf-captions-directory)) (buffer-string))
+ "")
+ "</body></html>")))
+
+(defun conf-make-public-index-on-wiki ()
+ (interactive)
+ (let ((info (seq-filter (lambda (o)
+ (not (string= (plist-get o :status) "CANCELLED")))
+ (conf-filter-talks (conf-get-talk-info)))))
+ (with-temp-file (expand-file-name "all-include.md" (expand-file-name conf-year conf-directory))
+ (insert
+ "<ol class=\"videos\">"
+ (mapconcat
+ (lambda (f)
+ (format "<li><div class=\"title\"><a href=\"%s\">%s</a></div><div class=\"speakers\">%s</div>%s%s</li>"
+ (plist-get f :url)
+ (plist-get f :title)
+ (or (plist-get f :speakers) "")
+ (if (plist-get f :public)
+ (conf-index-card
+ (append (list :base-url
+ (concat conf-media-base-url (plist-get f :conf-year) "/")
+ :track-base-url
+ (format "/%s/captions/" (plist-get f :conf-year)))
+ f)
+ conf-published-extensions)
+ "")
+ (if (plist-get f :qa-public)
+ (conf-index-card
+ (append
+ (list
+ :public 1
+ :base-url (concat conf-media-base-url (plist-get f :conf-year) "/")
+ :video-id "qanda"
+ :track-base-url
+ (format "/%s/captions/" (plist-get f :conf-year))
+ :video-file (expand-file-name
+ (concat (file-name-sans-extension (plist-get f :video-slug)) "--answers.webm")
+ conf-captions-directory))
+ f)
+ (list "--answers.vtt" "--answers--chapters.vtt"))
+ "")))
+ info "\n"))
+ "</ol>")))
+
+
+
+(defun conf-make-chapter-strings (filename track-base-url)
+ (when (file-exists-p filename)
+ (let ((chapters (with-temp-buffer
+ (insert-file-contents filename)
+ (subed-vtt--init)
+ (conf-chapters-buffer-as-list))))
+ (list
+ :track (format "<track kind=\"chapters\" label=\"Chapters\" src=\"%s\"\" />"
+ (concat (or track-base-url "") (file-name-nondirectory filename)))
+ :html (format "<ol class=\"chapters\">\n%s\n</ol>"
+ (mapconcat
+ (lambda (chapter)
+ (format "<li data-start=\"%.3f\" data-stop=\"%.3f\">%s %s</li>"
+ (/ (plist-get chapter :start-ms) 1000.0)
+ (/ (plist-get chapter :stop-ms) 1000.0)
+ (format-seconds "%.2h:%z%.2m:%.2s" (floor (/ (plist-get chapter :start-ms) 1000)))
+ (plist-get chapter :text)))
+ chapters
+ "\n"))))))
+
+(defun conf-video-subtitle-tracks (filename track-base-url)
+ (concat
+ (if (file-exists-p filename)
+ (format "<track label=\"English\" kind=\"captions\" srclang=\"en\" src=\"%s\" default />"
+ (concat (or track-base-url "") (file-name-nondirectory filename)))
+ "")
+ (mapconcat
+ (lambda (lang)
+ (let ((lang-file (concat (file-name-sans-extension filename) "_" (car lang) (file-name-extension filename))))
+ (if (file-exists-p lang-file)
+ (format "<track label=\"%s\" kind=\"captions\" srclang=\"%s\" src=\"%s--main_%s.vtt\" />"
+ (cdr lang)
+ (car lang)
+ (concat (or track-base-url "") (file-name-nondirectory lang-file))
+ (car lang))
+ "")))
+ '(("fr" . "French") ("ja" . "Japanese"))
+ "")))
+
+(defun conf-link-file-formats (video-slug extensions)
+ (string-join (conf-link-file-formats-as-list video-slug extensions) " "))
+
+(defun conf-link-file-formats-as-list (talk extensions)
+ (let ((video-slug (plist-get talk :video-slug))
+ (wiki-captions-dir (expand-file-name "captions" (expand-file-name (plist-get talk :conf-year) conf-directory))))
+ (delq nil (seq-map (lambda (ext)
+ (if (file-exists-p
+ (expand-file-name
+ (concat video-slug ext)
+ (if (string-match "\\.vtt$" ext)
+ wiki-captions-dir
+ conf-captions-directory)))
+ (format "<a href=\"%s%s\">Download %s</a>"
+ (or (plist-get talk :base-url) "")
+ (concat video-slug ext)
+ ext)))
+ extensions))))