[英]Generate video with ffmpeg for JavaFX MediaPlayer
I'm trying to use ffmpeg for generating a video file from timelapse images. 我正在尝试使用ffmpeg从游戏中时光倒流图像生成视频文件。 Somehow I didn't find out which codec resp.
我不知何故找不到哪个编解码器。 which parameters I have to use in ffmpeg, that the video file is playable with JavaFX's
MediaPlayer
. 我必须在ffmpeg中使用哪些参数,才能使用JavaFX的
MediaPlayer
播放视频文件。 I tried these codecs: 我尝试了以下编解码器:
ffmpeg -f image2 -i %05d.jpg -r 30 -filter:v crop=4000:2250:0:0 -s 1920x1080 -vcodec libx264 -preset ultrafast -qp 0 Timelapse3.mp4
) ffmpeg -f image2 -i %05d.jpg -r 30 -filter:v crop=4000:2250:0:0 -s 1920x1080 -vcodec libx264 -preset ultrafast -qp 0 Timelapse3.mp4
) ffmpeg -f image2 -i %05d.jpg -r 30 -filter:v crop=4000:2250:0:0 -s 1920x1080 -vcodec mpeg4 -qscale 1 ../Timelapse.avi
) ffmpeg -f image2 -i %05d.jpg -r 30 -filter:v crop=4000:2250:0:0 -s 1920x1080 -vcodec mpeg4 -qscale 1 ../Timelapse.avi
) But they didn't work with JavaFX. 但是它们不适用于JavaFX。 What codec and parameter do I have to use for a high quality output?
高质量输出必须使用什么编解码器和参数?
The following worked for me if I have an input as mp4 (but it should work accordingly with other input formats, as in your case the image timelapse): 如果我输入的内容为mp4,以下内容对我有用(但它应与其他输入格式相对应,例如您的图像时移):
ffmpeg -i input.mp4 -vcodec h264 -vf scale=1920x1080 -an -pix_fmt yuv420p output.mp4
So the important parts are: 因此重要的部分是:
-an
or replace with working audio codec conversion) -an
或将其替换为有效的音频编解码器转换) The avi
container format isn't supported by JavaFX so won't work - your first example should however play ball ok - I've tried it and it works for me. JavaFX不支持
avi
容器格式,因此无法正常工作-您的第一个示例应该可以正常运行-我已经尝试过了,并且对我有用。
You could also try forcing the mp4 container with the same f
switch but just before the output file: 您也可以尝试使用相同的
f
开关但仅在输出文件之前强制mp4容器:
ffmpeg -f image2 -i %05d.jpg -r 30 -filter:v crop=4000:2250:0:0 -s 1920x1080 -vcodec mpeg4 -qscale 1 -f mp4 ../Timelapse.mp4
(Also try the above with libx264.) (也可以使用libx264尝试上述方法。)
Try this 尝试这个
Replace the file name in the quotes with your file name. 用您的文件名替换引号中的文件名。 The file name numbering should start with 0 then go to 1, 2, 3, 4 and so on
文件名编号应以0开头,然后转到1、2、3、4,依此类推
This is how my file names look 这是我的文件名的样子
Mandibular hollow 1 micron.gizmofill0.gizmoslice.jpg 下颌空心1 micron.gizmofill0.gizmoslice.jpg
Mandibular hollow 1 micron.gizmofill17.gizmoslice.jpg 下颌空心1 micron.gizmofill17.gizmoslice.jpg
Mandibular hollow 1 micron.gizmofill16994.gizmoslice.jpg 下颌骨空心1 micron.gizmofill16994.gizmoslice.jpg
My files range between 198kb and 47kb in size. 我的文件大小在198kb至47kb之间。 I have about 18500 files.
我有大约18500个文件。 All the files combined are about 2.9GB.
所有文件合计约为2.9GB。 This will generate a movie file at 50 frames per second that is around 25MB
这将以每秒50帧的速度生成大约25MB的电影文件
ffmpeg -framerate 50 -i "Mandibular hollow 1 micron.gizmofill%d.gizmoslice.jpg" -s 1638x1004 -c:v libx264 -pix_fmt yuv420p output.mp4 ffmpeg -framerate 50 -i“下颌骨空心1 micron.gizmofill%d.gizmoslice.jpg” -s 1638x1004 -c:v libx264 -pix_fmt yuv420p output.mp4
This controller code works for me 该控制器代码对我有用
package javafxapplication13;
import java.io.File;
import java.net.URL;
import java.util.ResourceBundle;
import javafx.event.ActionEvent;
import javafx.fxml.FXML;
import javafx.fxml.Initializable;
import javafx.scene.media.Media;
import javafx.scene.media.MediaPlayer;
import javafx.scene.media.MediaView;
/**
*
* @author kobus
*/
public class FXMLDocumentController implements Initializable {
@FXML
private MediaView mediaView;
@FXML
private void handleButtonAction(ActionEvent event) {
final File f = new File("C:/Users/kobus/Dropbox/JavaProjects/Gizmetor/temp/output.mp4");
Media media = new Media(f.toURI().toString());
MediaPlayer mediaPlayer = new MediaPlayer(media);
mediaPlayer.setAutoPlay(true);
mediaPlayer.play();
mediaView.setMediaPlayer(mediaPlayer);
}
@Override
public void initialize(URL url, ResourceBundle rb) {
// TODO
}
}
This is the .fxml file 这是.fxml文件
<?xml version="1.0" encoding="UTF-8"?>
<?import javafx.scene.media.*?>
<?import java.lang.*?>
<?import java.util.*?>
<?import javafx.scene.*?>
<?import javafx.scene.control.*?>
<?import javafx.scene.layout.*?>
<AnchorPane id="AnchorPane" prefHeight="200" prefWidth="320" xmlns="http://javafx.com/javafx/8" xmlns:fx="http://javafx.com/fxml/1" fx:controller="javafxapplication13.FXMLDocumentController">
<children>
<Button fx:id="button" layoutX="126" layoutY="90" onAction="#handleButtonAction" text="Click Me!" />
<Label fx:id="label" layoutX="126" layoutY="120" minHeight="16" minWidth="69" />
<MediaView fx:id="mediaView" fitHeight="1005.0" fitWidth="1638.0" layoutX="14.0" layoutY="165.0" />
</children>
</AnchorPane>
Here is the application file 这是申请文件
package javafxapplication13;
import javafx.application.Application;
import javafx.fxml.FXMLLoader;
import javafx.scene.Parent;
import javafx.scene.Scene;
import javafx.stage.Stage;
/**
*
* @author kobus
*/
public class JavaFXApplication13 extends Application {
@Override
public void start(Stage stage) throws Exception {
Parent root = FXMLLoader.load(getClass().getResource("FXMLDocument.fxml"));
Scene scene = new Scene(root);
stage.setScene(scene);
stage.show();
}
/**
* @param args the command line arguments
*/
public static void main(String[] args) {
launch(args);
}
}
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