問題描述

我是 php 的新手.我已經(jīng)在我的本地 iis 中安裝了 ffmpeg .. 是否可以為 flv 文件生成縮略圖.?請幫忙..

I am new to php. I have installed ffmpeg in my local iis.. Is it possible to generate a thumbnail image for a flv file.? Please help..

推薦答案

試試這個

$ffmpeg = 'ffmpeg.exe';

//video dir
$video = 'video.flv';

//where to save the image
$image = 'image.jpg';

//time to take screenshot at
$interval = 5;

//screenshot size
$size = '320x240';

//ffmpeg command
$cmd = "$ffmpeg -i $video -deinterlace -an -ss $interval -f mjpeg -t 1 -r 1 -y -s $size $image 2>&1";       
$return = `$cmd`;

命令選項(xiàng)說明:

-i 文件名(源視頻的文件路徑)
-deinterlace(將隔行視頻轉(zhuǎn)換為非隔行格式)
-an(錄音被禁用；我們不需要它來制作縮略圖)
-ss position(輸入視頻被解碼和轉(zhuǎn)儲，直到時間戳到達(dá)位置，我們的縮略圖的位置以秒為單位)
-f 輸出文件格式
-t duration(輸出文件在 duration 秒后停止寫入)
-r fps(設(shè)置要寫入的幀速率；fps 以赫茲(1/秒)表示；我們使用 1 以便我們只抓取一幀)
-y(如果已經(jīng)存在則覆蓋輸出文件)
-s 寬x高(以像素為單位的框架大小)

-i filename (the source video's file path)
-deinterlace (converts interlaced video to non-interlaced form)
-an (audio recording is disabled; we don't need it for thumbnails)
-ss position (input video is decoded and dumped until the timestamp reaches position, our thumbnail's position in seconds)
-f output file format
-t duration (the output file stops writing after duration seconds)
-r fps (sets the frame rate to write at; fps is expressed in Hertz (1/seconds); we use 1 so that we grab only one frame)
-y (overwrites the output file if it already exists)
-s widthxheight (size of the frame in pixels)

這篇關(guān)于FFMpeg - 為視頻文件創(chuàng)建縮略圖的文章就介紹到這了，希望我們推薦的答案對大家有所幫助，也希望大家多多支持html5模板網(wǎng)！