Как конвертировать .flv в .mpg (.avi).
Вы наверное замечали, что самый популярный видео-сервис YouTube предоставляет видеофайлы в специальном Flash-формате - .flv. При попытке скачать такой ролик с YouTube с помощью плагина к Firefox VideoDownloader, последний предложил заодно скачать и FLV-Player для просмотра данного видео. К совету я не прислушался - хватит с меня уже плееров. Решил пойти другим путем. А именно - перекодировать с .flv в .mpg (.avi). Но не тут то было, VideoDownloader ролик так и не скачал. Таким образом, имея лишь ссылку на понравившееся мне видео и желание его скачать, обратился к Google. И нашел.
Программа называется GenTube. На самом деле это обычный скрипт который скачивает и перекодирует видео-файл с формата .flv в .mpg.
Программа называется GenTube. На самом деле это обычный скрипт который скачивает и перекодирует видео-файл с формата .flv в .mpg.
Для нормальной работы скрипта нужны следующие программы:
Kdialog, ffmpeg, player of mpg ( mplayer), wget. Тут вроде понятно. Kdialog осуществляет диалог скрипта с пользователем, wget - загружает, ffmpeg - перекодирует и mplayer - проигрывает.
На сайте разработчика можно найти различные версии скрипта и на разных языках. Я остановился на этой - (скачать GenTube-1.0-Jan.tar.gz ).
Работа с данной программой:
Распаковываем скачанный архив и заходим в созданную директорию:
Работа с данной программой:
Распаковываем скачанный архив и заходим в созданную директорию:
$ tar xzvf GenTube-1.0-Jan.tar.gz
$ cd GenTube-1.0-Jan/
Просмотрев файл README (он, оказывается, на испанском) и описания на сайте - запускаем:
$ ./gentube.sh
Скрипт запускает Kdialog, где нужно выбрать сначала язык интерфейса (English), а потом - Download Video
и ввести URL видео-ролика с YouTube. Скрипт сам запустит, скачает и перекодирует видео. После этого в Kdialog можно нажать Play video и просмотреть ролик в формате .mpg.
Довольно легко и удобно!
Довольно легко и удобно!
В процессе поиска столкнулся с еще некоторыми методами.
1. Скачать видео-ролик в формате .flv и перекодировать с помощью утилиты mencoder:
mencoder input.flv -ofps 15 -vf scale=300:-2 -oac lavc -ovc lavc -lavcopts vcode c=msmpeg4v2:acodec=mp3:abitrate=64 -o output.avi
2. Скачать видео-ролик в формате .flv и перекодировать с помощью утилиты ffmpeg:
ffmpeg -i videotoconvert.flv -ab 56 -ar 22050 -b 500 -s 320x240 output.mpg
(Источник)
3. Попробовать скрипты, написанные на Perl или Bash с сайта bashscripts.org.
Все эти три метода я не проверял по двум причинам:
а. Задача была выполнена с помощью GenTube;
b. Я не смог загрузить файл .flv с YouTube вручную :(.
Вот что выдает wget:
Resolving www.youtube.com...
failed: Name or service not known.
Но GenTube также использует wget и вроде бы без дополнительных ключей. В общем, если Вы сможете загрузить файл с YouTube, то перекодировать можно любым из указанных выше способов.
45 коммент.:
По поводу расширения: UnPlug использовать куда удобнее и он не навязывает выкачивания чего бы то ни было.
А без перекодирования он mplayer'ом играется?
Огромное спасибо за ссылку на расширение. Видео с YouTube скачал без проблем. Но вот перекодировать с помощью mencoder и ffmpeg пока не получилось. Это нужно посидеть над man ffmpeg. Пока ограничусь GenTube.
В моем случае играется, но нельзя перемотать (бегунок прокрутки стоит в конце). При попытке мышкой его продвинуть, просмотр умирает. В VLC и Kaffeine не проигрывается.
Перекодирую обычным mencoder-ом, всё нормально. Выкачиваю в Огнелисе VideoDownloader.
Даже не знаю что сказать. У меня в огнелисе VideoDownloder выкачивать отказался напрочь. UnPlug - выкачивает без проблем. А на счет mencoder и ffmpeg, последним пользоваться уже научился. Как-то раньше никогда это не интересовало.
а звук с видео синхронизирован нормально при пережатии? а то я скачал когда то несколько клипов, но звук съезает при просмотре мплеером :( пережимать еще не пробовал.
кстати, последние версии мплеера нормально перематывают flv
to ulmen
Все синхронно! Для статистики еще несколько клипов перекодировал. Все работает. Способ с ffmpeg тоже работает. Проверил. Mencoder выдает ошибку.
Я скачиваю видео с помощью экстеншна Fast Video Download, который внедряет в код страницы ссылку "скачать видео" прямо под ютубовым окошком.
А перекодирую, если нужно, прогой ffmpeg2theora - ей просто нужно указать файл и она создает ogg с таким же названием в той же папке, поддерживает пакетную обработку.
Да и как-то приятнее кодировать не в скучный ави, а в наш, опенсорсный, огг.
Спасибо всем. Сколько всего нового узнал за эти пару дней. Попробовал ffmpeg2theora. Действительно все просто и все работает. Теперь можно экспериментировать :).
спасибо, буду пробовать
проверил, синхронно все :) спасибо.
Нашел еще один способ загрузки видео с Youtube. На этот раз просто с командной строки. Скачиваем скрипт
http://www.arrakis.es/%7Erggi3/youtube-dl/youtube-dl
и кидаем его например в ~/bin/
дальше в командной строке набираем youtube-dl http://youtube......
Вот пользуйтесь :)
В качестве параметра на вход задаем урл youtube и имя выходного файла
#!/bin/bash
wget -c -S http://youtube.com/get_video.php\?`curl -s $1 | grep player2.swf | cut -f2 -d? | cut -f1 -d\"` 2> /tmp/y1;
uf=`grep Location /tmp/y1 | sed "s/.*Location: //g"`;
wget "$uf" -O /tmp/y.flv 2> /dev/null;
ffmpeg -i /tmp/y.flv -ab 48 -ar 22050 -acodec mp3 -b 100 -s 320x240 -vcodec xvid /tmp/$2.avi 2> /dev/null;
rm /tmp/y.flv;
rm /tmp/y1;
exit
Спасибо большое))
Я помню пользовался этой программой, но перекодировать не получалось(( Тут попробовал тупо с помощью ffmpeg, теперь всё путём))
Попробуй http://softtelecom.ru/mb.htm
но это конвертация сразу с инета, но зато с самых популярных сайтов
Спасибо за программу , а то я пользуюсь демо версией, ваша статья как раз мне помогла.
Gen Tube is the best to download videos from YouTube, it works great! Thanks for sharing this post........
К совету я не прислушался - хватит с меня уже плееров. Решил пойти другим путем. А именно - перекодировать с .flv в .mpg (.avi). Но не тут то было, VideoDownloader ролик так и не скачал. Таким образом, имея лишь ссылку на понравившееся мне видео и желание его скачать, обратился скачивает и перекодирует видео-файл с формата .flv в .mpg.
последний предложил заодно скачать и FLV-Player для просмотра данного видео. К совету я не прислушался - хватит с меня уже плееров, Для нормальной работы скрипта нужны следующие программы:
Kdialog, ffmpeg.
Добрый день!
"2. Скачать видео-ролик в формате .flv и перекодировать с помощью утилиты ffmpeg:
ffmpeg -i videotoconvert.flv -ab 56 -ar 22050 -b 500 -s 320x240 output.mpg"
Опишите, плиз подробно, как кодировать .flv в aiv с помощью WinFF. То есть, как для чайника.
Я установил WinFF, запустил программу, добавил файл .flv и там куча настроек:
Конвертировать и дроп-лист
Пресет и дроп лист
а также видео и аудио настройки.
Напишете, что должно быть в каждом из окошек.
Спасибо.
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