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jak najszybciej skonwertowac mp4 do avi bez straty jakosci?????.
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Najszybciej oczywiście mencoderem. Co do straty jakości, to by temu zapobiec należy ustawić odpowiednio wysoki bitrate. Ja dla przykładu ostatnio kodowałem taki plik w ten sposób:
mencoder film.mp4 -ovc xvid -xvidencopts me_quality=6:bitrate=1700:pass=1 -oac mp3lame -lameopts vbr=3 -o /dev/null ; mencoder film.mp4 -ovc xvid -xvidencopts me_quality=6:bitrate=1700:pass=2 -oac mp3lame -lameopts vbr=3 -o plik.avi
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Time (s) | Query |
---|---|
0.00009 | SET CHARSET latin2 |
0.00004 | SET NAMES latin2 |
0.00131 | SELECT u.*, g.*, o.logged FROM punbb_users AS u INNER JOIN punbb_groups AS g ON u.group_id=g.g_id LEFT JOIN punbb_online AS o ON o.ident='3.138.35.53' WHERE u.id=1 |
0.00072 | REPLACE INTO punbb_online (user_id, ident, logged) VALUES(1, '3.138.35.53', 1733985265) |
0.00037 | SELECT * FROM punbb_online WHERE logged<1733984965 |
0.00050 | SELECT topic_id FROM punbb_posts WHERE id=148238 |
0.00076 | SELECT id FROM punbb_posts WHERE topic_id=16759 ORDER BY posted |
0.00028 | SELECT t.subject, t.closed, t.num_replies, t.sticky, f.id AS forum_id, f.forum_name, f.moderators, fp.post_replies, 0 FROM punbb_topics AS t INNER JOIN punbb_forums AS f ON f.id=t.forum_id LEFT JOIN punbb_forum_perms AS fp ON (fp.forum_id=f.id AND fp.group_id=3) WHERE (fp.read_forum IS NULL OR fp.read_forum=1) AND t.id=16759 AND t.moved_to IS NULL |
0.00021 | SELECT search_for, replace_with FROM punbb_censoring |
0.00095 | SELECT u.email, u.title, u.url, u.location, u.use_avatar, u.signature, u.email_setting, u.num_posts, u.registered, u.admin_note, p.id, p.poster AS username, p.poster_id, p.poster_ip, p.poster_email, p.message, p.hide_smilies, p.posted, p.edited, p.edited_by, g.g_id, g.g_user_title, o.user_id AS is_online FROM punbb_posts AS p INNER JOIN punbb_users AS u ON u.id=p.poster_id INNER JOIN punbb_groups AS g ON g.g_id=u.group_id LEFT JOIN punbb_online AS o ON (o.user_id=u.id AND o.user_id!=1 AND o.idle=0) WHERE p.topic_id=16759 ORDER BY p.id LIMIT 0,25 |
0.00093 | UPDATE punbb_topics SET num_views=num_views+1 WHERE id=16759 |
Total query time: 0.00616 s |