在我的硬盤上的目錄中我有很多圖片:screenshot000001.bmp,screenshot000002.bmp .... screenshot001200.bmp如何將圖像實時批量轉換成mp4視頻文件?
我想要做的兩件事情:
對於使用測試cmd(命令提示符)並將圖像壓縮並轉換爲mp4視頻文件。
在我的程序中,我的程序實時截取屏幕截圖並將其保存到硬盤中,以實時壓縮它們並構建mp4視頻文件。
在第一部分我試圖鍵入CMD:
ffmpeg -f image2 -i screenshot%d.bmp -vcodec libx264 -b 800k video.avi
,但我得到的是兩個錯誤:
[圖像2 @ 0000000004766380]能找到路徑沒有文件「截圖%d.bmp'和 索引在範圍0-4 屏幕截圖%d.bmp:沒有這樣的文件或目錄
我將ffmpeg.exe複製到目錄圖像是在 E:\截圖
對於第二部分該如何我採取實時截圖:
是啓動計時器按鈕單擊事件:
private void button1_Click(object sender, EventArgs e)
{
timer1.Start();
}
然後在打勾事件中:
ScreenShot shot = new ScreenShot();
public static int counter = 0;
private void timer1_Tick(object sender, EventArgs e)
{
counter++;
shot.GetScreenShot(@"e:\screenshots\", "screenshot");
if (counter == 1200)
{
timer1.Stop();
}
}
此行shot.GetScreenShot(@「e:\ screenshots \」,「screenshot」);將屏幕截圖保存到硬盤。 這裏每個屏幕截圖保存後,我想壓縮和實時構建mp4視頻文件。
我嘗試這樣做,得到了錯誤:
ffmpeg -f image2 -i screenshot%06d.bmp -vcodec libx264 -b 800k video.avi
錯誤消息:
ffmpeg version N-73165-gf1e1730 Copyright (
built with gcc 4.9.2 (GCC)
configuration: --enable-gpl --enable-vers
isynth --enable-bzlib --enable-fontconfig -
le-iconv --enable-libass --enable-libbluray
enable-libdcadec --enable-libfreetype --ena
ibilbc --enable-libmodplug --enable-libmp3l
le-libopencore-amrwb --enable-libopenjpeg -
able-libschroedinger --enable-libsoxr --ena
ble-libtwolame --enable-libvidstab --enable
--enable-libvorbis --enable-libvpx --enabl
e-libx264 --enable-libx265 --enable-libxavs
ble-decklink --enable-zlib
libavutil 54. 27.100/54. 27.100
libavcodec 56. 45.100/56. 45.100
libavformat 56. 38.102/56. 38.102
libavdevice 56. 4.100/56. 4.100
libavfilter 5. 18.100/5. 18.100
libswscale 3. 1.101/3. 1.101
libswresample 1. 2.100/1. 2.100
libpostproc 53. 3.100/53. 3.100
[bmp @ 0000000002f77ce0] bad magic number
Last message repeated 3 times
[image2 @ 0000000002f76380] decoding for st
[image2 @ 0000000002f76380] Could not find
bmp, none): unspecified size
Consider increasing the value for the 'anal
screenshot%06d.bmp: could not find codec pa
Input #0, image2, from 'screenshot%06d.bmp'
Duration: 00:00:02.88, start: 0.000000, b
Stream #0:0: Video: bmp, none, 25 fps,
Please use -b:a or -b:v, -b is ambiguous
Codec AVOption b (set bitrate (in bits/s))
vi) has not been used for any stream. The m
e (e.g. a video option with no video stream
some encoder which was not actually used fo
Output #0, avi, to 'video.avi':
Output file #0 does not contain any stream