[External] : Re: JavaFX 19 - Media object bug

Kevin Rushforth kevin.rushforth at oracle.com
Sat Sep 17 13:56:12 UTC 2022 

Looks like there was a little delay in processing it, so I moved it to 
the JDK project myself. It is available here:

https://bugs.openjdk.org/browse/JDK-8293971

I've also added the additional information you sent below to the bug report.

-- Kevin


On 9/16/2022 6:35 PM, Alessandro Mercier wrote:
> Little update:
>
> Filed a bug report at bugreport.java.com 
> <https://urldefense.com/v3/__http://bugreport.java.com__;!!ACWV5N9M2RV99hQ!OeWMVVpaLY2NEWr0uLfT_Z4m_fQyPCpg1VoPzXGJVl4B5NYW5UHkW4FF1w7Q22gqI2nX6OWhogndXvvg6gsuYwdhn2-IgnQ$> 
> a couple of days ago but it has not been created yet.
> In the in between time I found that this line in the JFX source is 
> responsible for the bug:
> https://github.com/openjdk/jfx/blob/d1110f479567c314ecb6848700bcf4552509d7e9/modules/javafx.media/src/main/java/com/sun/media/jfxmedia/locator/Locator.java#L622 
> <https://urldefense.com/v3/__https://github.com/openjdk/jfx/blob/d1110f479567c314ecb6848700bcf4552509d7e9/modules/javafx.media/src/main/java/com/sun/media/jfxmedia/locator/Locator.java*L622__;Iw!!ACWV5N9M2RV99hQ!OeWMVVpaLY2NEWr0uLfT_Z4m_fQyPCpg1VoPzXGJVl4B5NYW5UHkW4FF1w7Q22gqI2nX6OWhogndXvvg6gsuYwdhUNLCS7A$>
>
> Sample code:
>
> package org.example;
>
> import javafx.application.Application;
> import javafx.scene.Scene;
> import javafx.scene.layout.StackPane;
> import javafx.scene.media.Media;
> import javafx.scene.media.MediaPlayer;
> import javafx.stage.Stage;
>
> import java.net.URISyntaxException;
>
> public class Main extends Application {
>     public static void main(String[] args) {
>         launch(args);
>     }
>
>     @Override
>     public void start(final Stage primaryStage) throws 
> URISyntaxException {
>         final StackPane root = new StackPane();
>         primaryStage.setScene(new Scene(root, 300, 250));
>         primaryStage.show();
>
>         final MediaPlayer player1 = new MediaPlayer(new 
> Media(getClass().getResource("/static.mp3").toURI().toString()));
>         player1.setAutoPlay(true);
>     }
> }
>
> MP3:
> https://codedead.com/static.mp3 
> <https://urldefense.com/v3/__https://codedead.com/static.mp3__;!!ACWV5N9M2RV99hQ!OeWMVVpaLY2NEWr0uLfT_Z4m_fQyPCpg1VoPzXGJVl4B5NYW5UHkW4FF1w7Q22gqI2nX6OWhogndXvvg6gsuYwdhb65LOH4$> 
> (royalty free)
>
> Occurrence:
> 100% of the time
>
> Kind regards,
>
> Alessandro Mercier
>
> Op do 15 sep. 2022 om 18:24 schreef Alessandro Mercier 
> <administrator at codedead.com>:
>
>     Certainly,
>
>     A report has been filed.
>
>     Kind regards
>
>
>     On Thu, 15 Sep 2022, 18:11 Kevin Rushforth,
>     <kevin.rushforth at oracle.com> wrote:
>
>         This might be a regression introduced by the fix for
>         https://bugs.openjdk.org/browse/JDK-8282054
>
>         Can you file a bug at https://bugreport.java.com/
>         <https://urldefense.com/v3/__https://bugreport.java.com/__;!!ACWV5N9M2RV99hQ!OeWMVVpaLY2NEWr0uLfT_Z4m_fQyPCpg1VoPzXGJVl4B5NYW5UHkW4FF1w7Q22gqI2nX6OWhogndXvvg6gsuYwdhkXAhSI4$>
>         ?
>
>         Maybe Alexander can comment further.
>
>         -- Kevin
>
>
>         On 9/15/2022 8:27 AM, Alessandro Mercier wrote:
>>         Hello all,
>>
>>         After this commit:
>>         https://github.com/openjdk/jfx/commit/d1110f479567c314ecb6848700bcf4552509d7e9
>>         <https://urldefense.com/v3/__https://github.com/openjdk/jfx/commit/d1110f479567c314ecb6848700bcf4552509d7e9__;!!ACWV5N9M2RV99hQ!OeWMVVpaLY2NEWr0uLfT_Z4m_fQyPCpg1VoPzXGJVl4B5NYW5UHkW4FF1w7Q22gqI2nX6OWhogndXvvg6gsuYwdhZtzPsZM$>
>>
>>         Creating a new Media object using a MP3 file in the resources
>>         of a project, you can get exceptions:
>>
>>         Exception in thread "JavaFX Application Thread"
>>         MediaException: MEDIA_UNSUPPORTED : Unrecognized file signature!
>>         at
>>         javafx.media at 20-ea/javafx.scene.media.Media.<init>(Media.java:411)
>>
>>         At first glance, the error is in this Locator file in the
>>         JavaFX source code:
>>         https://github.com/openjdk/jfx/blob/master/modules/javafx.media/src/main/java/com/sun/media/jfxmedia/locator/Locator.java
>>         <https://urldefense.com/v3/__https://github.com/openjdk/jfx/blob/master/modules/javafx.media/src/main/java/com/sun/media/jfxmedia/locator/Locator.java__;!!ACWV5N9M2RV99hQ!OeWMVVpaLY2NEWr0uLfT_Z4m_fQyPCpg1VoPzXGJVl4B5NYW5UHkW4FF1w7Q22gqI2nX6OWhogndXvvg6gsuYwdhb7Gu6w0$>
>>
>>         *Steps to reproduce the bug:*
>>         1. Create a new Media object and load an MP3 from the resources
>>         2. Watch the Media object throw a MediaException:
>>         MEDIA_UNSUPPORTED : Unrecognized file signature!
>>
>>         *Example code that produces the bug:*
>>         final MediaPlayer mediaPlayer = new MediaPlayer(new
>>         Media(getClass().getResource("/path/to/file.mp3").toExternalForm()));
>>
>>         *Extra:*
>>         I've made a free MP3 file available to try with here (royalty
>>         free):
>>         https://codedead.com/static.mp3
>>         <https://urldefense.com/v3/__https://codedead.com/static.mp3__;!!ACWV5N9M2RV99hQ!OeWMVVpaLY2NEWr0uLfT_Z4m_fQyPCpg1VoPzXGJVl4B5NYW5UHkW4FF1w7Q22gqI2nX6OWhogndXvvg6gsuYwdhb65LOH4$>
>>
>>         I've also got a GIT repository in which the exception occurs
>>         immediately when running the Gradle task 'application':
>>         https://github.com/CodeDead/opal/tree/development
>>         <https://urldefense.com/v3/__https://github.com/CodeDead/opal/tree/development__;!!ACWV5N9M2RV99hQ!OeWMVVpaLY2NEWr0uLfT_Z4m_fQyPCpg1VoPzXGJVl4B5NYW5UHkW4FF1w7Q22gqI2nX6OWhogndXvvg6gsuYwdha9sC5sE$>
>>         (please make sure to use the development branch as this
>>         branch makes use of the latest JavaFX versions)
>>
>>         Oddly enough, it does not always happen, and loading the file
>>         directly from a file location instead of the project
>>         resources seems to work, but when loading from the resources,
>>         you get the exception that the media file signature is not
>>         recognized.
>>         I don't see a problem with the media files themselves,
>>         encoding is all fine, at first glance and because it worked
>>         in JavaFX 18.0.2, creating a Media object using a URI to a
>>         project resources location should work in newer versions as
>>         well, I think. The same MP3 file does work when you load it
>>         from the disk instead of the project resources so this makes
>>         it a bug, I believe.
>>
>>         The work-around right now is to revert back to JavaFX version
>>         18.0.2.
>>
>>         *System / OS / Runtime info:*
>>         Linux Fedora 36
>>         5.19.8-200.fc36.x86_64
>>         openjdk version "18.0.2" 2022-07-19
>>         OpenJDK Runtime Environment
>>         (Red_Hat-18.0.2.0.9-1.rolling.fc36) (build 18.0.2+9)
>>         OpenJDK 64-Bit Server VM (Red_Hat-18.0.2.0.9-1.rolling.fc36)
>>         (build 18.0.2+9, mixed mode, sharing)
>>
>>         Thank you and kind regards
>>
>>         Alessandro Mercier
>>         -- 
>>         CodeDead Administrator
>>         https://codedead.com/
>>         <https://urldefense.com/v3/__https://codedead.com/__;!!ACWV5N9M2RV99hQ!OeWMVVpaLY2NEWr0uLfT_Z4m_fQyPCpg1VoPzXGJVl4B5NYW5UHkW4FF1w7Q22gqI2nX6OWhogndXvvg6gsuYwdhCBUBA2g$>
>>
>
>
>
> -- 
> CodeDead Administrator
> https://codedead.com/ 
> <https://urldefense.com/v3/__https://codedead.com/__;!!ACWV5N9M2RV99hQ!OeWMVVpaLY2NEWr0uLfT_Z4m_fQyPCpg1VoPzXGJVl4B5NYW5UHkW4FF1w7Q22gqI2nX6OWhogndXvvg6gsuYwdhCBUBA2g$>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://mail.openjdk.org/pipermail/openjfx-dev/attachments/20220917/5a51e28d/attachment-0001.htm>

More information about the openjfx-dev mailing list