权限没有，则隐藏 function forum_list_access_filter($forumlist, $gid, $allow = 'allowread') { global $grouplist; if (empty($forumlist)) return array(); if (1 == $gid) return $forumlist; $forumlist_filter = $forumlist; $group = $grouplist[$gid]; foreach ($forumlist_filter as $fid => $forum) { if (empty($forum['accesson']) && empty($group[$allow]) || !empty($forum['accesson']) && empty($forum['accesslist'][$gid][$allow])) { unset($forumlist_filter[$fid]); } unset($forumlist_filter[$fid]['accesslist']); } return $forumlist_filter; } function forum_filter_moduid($moduids) { $moduids = trim($moduids); if (empty($moduids)) return ''; $arr = explode(',', $moduids); $r = array(); foreach ($arr as $_uid) { $_uid = intval($_uid); $_user = user_read($_uid); if (empty($_user)) continue; if ($_user['gid'] > 4) continue; $r[] = $_uid; } return implode(',', $r); } function forum_safe_info($forum) { //unset($forum['moduids']); return $forum; } function forum_filter($forumlist) { foreach ($forumlist as &$val) { unset($val['brief'], $val['announcement'], $val['seo_title'], $val['seo_keywords'], $val['create_date_fmt'], $val['icon_url'], $val['modlist']); } return $forumlist; } function forum_format_url($forum) { global $conf; if (0 == $forum['category']) { // 列表URL $url = url('list-' . $forum['fid'], '', FALSE); } elseif (1 == $forum['category']) { // 频道 $url = url('category-' . $forum['fid'], '', FALSE); } elseif (2 == $forum['category']) { // 单页 $url = url('read-' . trim($forum['brief']), '', FALSE); } if ($conf['url_rewrite_on'] > 1 && $forum['well_alias']) { if (0 == $forum['category'] || 1 == $forum['category']) { $url = url($forum['well_alias'], '', FALSE); } elseif (2 == $forum['category']) { // 单页 $url = ($forum['threads'] && $forum['brief']) ? url($forum['well_alias'] . '-' . trim($forum['brief']), '', FALSE) : url($forum['well_alias'], '', FALSE); } } return $url; } function well_forum_alias() { $forumlist = forum_list_cache(); if (empty($forumlist)) return ''; $key = 'forum-alias'; static $cache = array(); if (isset($cache[$key])) return $cache[$key]; $cache[$key] = array(); foreach ($forumlist as $val) { if ($val['well_alias']) $cache[$key][$val['fid']] = $val['well_alias']; } return array_flip($cache[$key]); } function well_forum_alias_cache() { global $conf; $key = 'forum-alias-cache'; static $cache = array(); // 用静态变量只能在当前 request 生命周期缓存，跨进程需要再加一层缓存：redis/memcached/xcache/apc if (isset($cache[$key])) return $cache[$key]; if ('mysql' == $conf['cache']['type']) { $arr = well_forum_alias(); } else { $arr = cache_get($key); if (NULL === $arr) { $arr = well_forum_alias(); !empty($arr) AND cache_set($key, $arr); } } $cache[$key] = empty($arr) ? '' : $arr; return $cache[$key]; } ?>javascript - Detect current bitrate of HTTP Live Streaming in Safari - Stack Overflow

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    javascript - Detect current bitrate of HTTP Live Streaming in Safari - Stack Overflow

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    When using Apple Live Streaming in Safari, is there any way to detect the current bitrate with Javascript? Alternatively, can I detect which element of the .m3u8 is being played?

    I've looked at the HTMLMediaElement Class Reference, but found no clues there. The src property always references the .m3u8 file, so that doesn't help.

    When using Apple Live Streaming in Safari, is there any way to detect the current bitrate with Javascript? Alternatively, can I detect which element of the .m3u8 is being played?

    I've looked at the HTMLMediaElement Class Reference, but found no clues there. The src property always references the .m3u8 file, so that doesn't help.

    • javascript
    • safari
    • html5-video
    • http-live-streaming
    Share Improve this question asked Oct 15, 2012 at 11:52 Paul DixonPaul Dixon 301k54 gold badges314 silver badges349 bronze badges
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    1 Answer 1

    Reset to default 8

    It looks like the WHATWG is trying to address that very concern. See their document about HTML5 video metrics here: http://wiki.whatwg/wiki/Video_Metrics

    Using the Safari web developer tools, you can see that Webkit has implemented the following properties on the HTMLVideoElement:

    • webkitAudioDecodedByteCount
    • webkitDecodedFrameCount
    • webkitDroppedFrameCount
    • webkitVideoDecodedByteCount

    There isn't much documentation out there about these, but I found some sample code that might be helpful.

    I'd be very interested to hear if these properties worked for you. Please post your feedback if you gain any insight.

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