ubuntu 裝配 ffmpeg php-ffmpeg

ubuntu 安裝 ffmpeg php-ffmpeg

?? 最近在做一個視頻網站安裝本地環境費了不少時間。本地是ubuntu 9.10 而伺服器是redhat as4 所以到時候本人會把伺服器安裝過程和大家分享出來。

本人環境如下

• php —- 5.210
• apache 2.2
• ubuntu 9.10

1. ffmpeg 功能很強大包括視頻抓圖，視頻資訊，視頻轉換，線上視頻錄製，而且是免費的。所有一般的視頻網站都會採用他。
2. 本人首先是採用編譯安裝，但是一直都沒有成功。編譯過程中出現了很多問題。安裝要使用ffmpeg往往需要編譯很多包。感覺很麻煩。這些包又依賴於很多其他包。安裝順序也有要求。所以放棄了。
3. 最終採用ubuntu 強大的 apt-get (使用dpkg進行安裝) 進行安裝（當然cenos,red hat這類使用rpm的系統都可以使用yum進行安裝,具體的安裝方法可以在本站進行尋找）.
4. apt-get 安裝步驟如下:
   sudo apt-get update ##更新以下源
   sudo apt-get install ffmpeg
   sudo apt-get install php5-ffmpeg
   sudo apt-get install mencoder
   sudo apt-get install flvtool2 ##視頻轉換flv
   sudo apt-get install lame ##音頻
   sudo apt0get install yasm
5. 編譯安裝ffmpeg 如下:
   從 http://ffmpeg.mplayerhq.hu 下載
   ./configure –help ##查看有那些參數
   ./configure–prefix=/usr–enable-gpl–enable-shared–enable-libmp3lame–enable-libamr_nb–enable-libogg–enable-libvorbis–enable-libxvid–enable-liba52–enable-liba52bin–enable-pp–enable-libfaad–enable-libfaadbin–enable-libfaac–enable-pthreads–disable-ffserver–enable-x11grab
   如果報錯則安裝該包，或者直接去掉該參數，只需要配置自己使用過程中需要使用到的就行了。
   make & make install
   其他的則一個一個的下載解壓在編譯就是了。

• 下面是php-ffmpeg 使用的api。功能是很少了。
  

  $movie = new ffmpeg_movie(String path_to_media, boolean persistent)Open a video or audio file and return it as an object.path_to_media - File path of video or audio file to open.persistent - Whether to open this media as a persistent resource. See the PHP documentation for more info about persistent resources$movie->getDuration()Return the duration of a movie or audio file in seconds.$movie->getFrameCount()Return the number of frames in a movie or audio file.$movie->getFrameRate()Return the frame rate of a movie in fps.$movie->getFilename()Return the path and name of the movie file or audio file.$movie->getComment()Return the comment field from the movie or audio file.$movie->getTitle()Return the title field from the movie or audio file.$movie->getAuthor() alias $movie->getArtist()Return the author field from the movie or the artist ID3 field from an mp3 file.$movie->getCopyright()Return the copyright field from the movie or audio file.$movie->getArtist()Return the artist ID3 field from an mp3 file.$movie->getGenre()Return the genre ID3 field from an mp3 file.$movie->getTrackNumber()Return the track ID3 field from an mp3 file.$movie->getYear()Return the year ID3 field from an mp3 file.$movie->getFrameHeight()Return the height of the movie in pixels.$movie->getFrameWidth()Return the width of the movie in pixels.$movie->getPixelFormat()Return the pixel format of the movie.$movie->getBitRate()Return the bit rate of the movie or audio file in bits per second.$movie->getVideoBitRate()Return the bit rate of the video in bits per second.NOTE: This only works for files with constant bit rate. $movie->getAudioBitRate()Return the audio bit rate of the media file in bits per second.$movie->getAudioSampleRate()Return the audio sample rate of the media file in bits per second.$movie->getFrameNumber()Return the current frame index.$movie->getVideoCodec()Return the name of the video codec used to encode this movie as a string.$movie->getAudioCodec()Return the name of the audio codec used to encode this movie as a string.$movie->getAudioChannels()Return the number of audio channels in this movie as an integer.$movie->hasAudio()Return boolean value indicating whether the movie has an audio stream.$movie->hasVideo()Return boolean value indicating whether the movie has a video stream.$movie->getFrame([Integer framenumber])Returns a frame from the movie as an ffmpeg_frame object. Returns false if the frame was not found.framenumber - Frame from the movie to return. If no framenumber is specified, returns the next frame of the movie.$movie->getNextKeyFrame()Returns the next key frame from the movie as an ffmpeg_frame object. Returns false if the frame was not found.

  ?
• 如果需要給視頻抓圖擇需要使用shell指令碼。也就是用到php當中的(system,exec,passthru)這類執行外部命令函數。
  往往很多伺服器都將種類函數視為危險函數屏蔽掉了。所以想做視頻網站對伺服器的配置要求比較高。
  當然最好是自己的獨立伺服器。vps 也可以。隨便你怎麼整都可以。

View Code PHP

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測試案例：ffmpeg-execute.php

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