.= 'tag.htm'; break; case 'flag': $pre .= $default_pre .= 'flag.htm'; break; case 'my': $pre .= $default_pre .= 'my.htm'; break; case 'my_password': $pre .= $default_pre .= 'my_password.htm'; break; case 'my_bind': $pre .= $default_pre .= 'my_bind.htm'; break; case 'my_avatar': $pre .= $default_pre .= 'my_avatar.htm'; break; case 'home_article': $pre .= $default_pre .= 'home_article.htm'; break; case 'home_comment': $pre .= $default_pre .= 'home_comment.htm'; break; case 'user': $pre .= $default_pre .= 'user.htm'; break; case 'user_login': $pre .= $default_pre .= 'user_login.htm'; break; case 'user_create': $pre .= $default_pre .= 'user_create.htm'; break; case 'user_resetpw': $pre .= $default_pre .= 'user_resetpw.htm'; break; case 'user_resetpw_complete': $pre .= $default_pre .= 'user_resetpw_complete.htm'; break; case 'user_comment': $pre .= $default_pre .= 'user_comment.htm'; break; case 'single_page': $pre .= $default_pre .= 'single_page.htm'; break; case 'search': $pre .= $default_pre .= 'search.htm'; break; case 'operate_sticky': $pre .= $default_pre .= 'operate_sticky.htm'; break; case 'operate_close': $pre .= $default_pre .= 'operate_close.htm'; break; case 'operate_delete': $pre .= $default_pre .= 'operate_delete.htm'; break; case 'operate_move': $pre .= $default_pre .= 'operate_move.htm'; break; case '404': $pre .= $default_pre .= '404.htm'; break; case 'read_404': $pre .= $default_pre .= 'read_404.htm'; break; case 'list_404': $pre .= $default_pre .= 'list_404.htm'; break; default: $pre .= $default_pre .= theme_mode_pre(); break; } if ($config['theme']) { $conffile = APP_PATH . 'view/template/' . $config['theme'] . '/conf.json'; $json = is_file($conffile) ? xn_json_decode(file_get_contents($conffile)) : array(); } !empty($json['installed']) and $path_file = APP_PATH . 'view/template/' . $config['theme'] . '/htm/' . ($id ? $id . '_' : '') . $pre; (empty($path_file) || !is_file($path_file)) and $path_file = APP_PATH . 'view/template/' . $config['theme'] . '/htm/' . $pre; if (!empty($config['theme_child']) && is_array($config['theme_child'])) { foreach ($config['theme_child'] as $theme) { if (empty($theme) || is_array($theme)) continue; $path_file = APP_PATH . 'view/template/' . $theme . '/htm/' . ($id ? $id . '_' : '') . $pre; !is_file($path_file) and $path_file = APP_PATH . 'view/template/' . $theme . '/htm/' . $pre; } } !is_file($path_file) and $path_file = APP_PATH . ($dir ? 'plugin/' . $dir . '/view/htm/' : 'view/htm/') . $default_pre; return $path_file; } function theme_mode_pre($type = 0) { global $config; $mode = $config['setting']['website_mode']; $pre = ''; if (1 == $mode) { $pre .= 2 == $type ? 'portal_category.htm' : 'portal.htm'; } elseif (2 == $mode) { $pre .= 2 == $type ? 'flat_category.htm' : 'flat.htm'; } else { $pre .= 2 == $type ? 'index_category.htm' : 'index.htm'; } return $pre; } ?>c++ - Set up GstCaps on runtime - Stack Overflow

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    Need to change video resolution on the fly via GStreamer. Here is its pipeline fragment:

    ...
"! vaapih264enc name=encoder rate-control=cbr quality-level=7 keyframe-period=8 ",
"! video/x-h264, profile=constrained-baseline, width=640, height=480 ",
"! h264parse config-interval=1 ",
...

    AFAIK, the solution is to manage capsfilter between vaapih264enc and h264parse. I have managed to get vaapih264enc byt it's name:

    auto encoder = gst_bin_get_by_name_recurse_up(media, "encoder");

    And I've also managed to get it's sink:

    auto sink = GST_PAD(context->encoder->sinkpads->data);

    But I cannot find a way to get GstCaps object and to set it's properties. Can anybody help?

    Need to change video resolution on the fly via GStreamer. Here is its pipeline fragment:

    ...
"! vaapih264enc name=encoder rate-control=cbr quality-level=7 keyframe-period=8 ",
"! video/x-h264, profile=constrained-baseline, width=640, height=480 ",
"! h264parse config-interval=1 ",
...

    AFAIK, the solution is to manage capsfilter between vaapih264enc and h264parse. I have managed to get vaapih264enc byt it's name:

    auto encoder = gst_bin_get_by_name_recurse_up(media, "encoder");

    And I've also managed to get it's sink:

    auto sink = GST_PAD(context->encoder->sinkpads->data);

    But I cannot find a way to get GstCaps object and to set it's properties. Can anybody help?

    • c++
    • gstreamer
    Share Improve this question asked Jan 30 at 12:33 Mikhail ZimkaMikhail Zimka 7241 gold badge10 silver badges20 bronze badges
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    1 Answer 1

    Reset to default 1

    In order to get the GstCaps you need to get the GstSample and the GstAppsink first. Based on the code you showed, you could do something like this:

    auto appsink = GST_APP_SINK(sink);
auto sample = gst_app_sink_pull_sample(appsink)
auto caps = gst_sample_get_caps(sink);

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