Get the video thumbnail error

[lan2000]

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ipad -14.7.1

Get the video thumbnail error： couldn't generate thumbnail, error:Error Domain=AVFoundationErrorDomain Code=-11832 "Cannot Open" UserInfo={NSLocalizedFailureReason=This media cannot be used., NSLocalizedDescription=Cannot Open, NSUnderlyingError=0x2810c7c00 {Error Domain=NSOSStatusErrorDomain Code=-12431 "(null)"}}

[lan2000]

The first time to get the picture is successful, the second time it fails.

[lan2000]

The video is in the cache path of the app

[lan2000]

Stable versions of video_thumbnail ： 0.4.3

[justsoft]

1) Make sure the second video is readable, before call the thumbnail function, try to read the content from the video file. 2) Use the thumbnailData instead of thumbnailFile to see any difference.

[lan2000]

1. Make sure the second video is readable, before call the thumbnail function, try to read the content from the video file.
2. Use the thumbnailData instead of thumbnailFile to see any difference.

It has been confirmed that the video is readable, and the video can be played directly An error is reported when thumbnailFile:

couldn't generate thumbnail, error:Error Domain=AVFoundationErrorDomain Code=-11832 "Cannot Open" UserInfo={NSLocalizedFailureReason=This media cannot be used., NSLocalizedDescription=Cannot Open, NSUnderlyingError=0x283b15260 {Error Domain=NSOSStatusErrorDomain Code=-12431 "(null)"}} [VERBOSE-2:ui_dart_state.cc(199)] Unhandled Exception: PlatformException(IO Error, Failed to write data to file, null, null)

0 StandardMethodCodec.decodeEnvelope (package:flutter/src/services/message_codecs.dart:597:7)

1 MethodChannel._invokeMethod (package:flutter/src/services/platform_channel.dart:158:18)

2 VideoThumbnail.thumbnailFile (package:video_thumbnail/video_thumbnail.dart:44:12)

3 _TrimmerViewPageState.build. (package:video_thumbnail_example/trimmer_view_page.dart:194:38)

[justsoft]

1. Make sure the second video is readable, before call the thumbnail function, try to read the content from the video file.
2. Use the thumbnailData instead of thumbnailFile to see any difference.

It has been confirmed that the video is readable, and the video can be played directly An error is reported when thumbnailFile:

couldn't generate thumbnail, error:Error Domain=AVFoundationErrorDomain Code=-11832 "Cannot Open" UserInfo={NSLocalizedFailureReason=This media cannot be used., NSLocalizedDescription=Cannot Open, NSUnderlyingError=0x283b15260 {Error Domain=NSOSStatusErrorDomain Code=-12431 "(null)"}} [VERBOSE-2:ui_dart_state.cc(199)] Unhandled Exception: PlatformException(IO Error, Failed to write data to file, null, null)

0 StandardMethodCodec.decodeEnvelope (package:flutter/src/services/message_codecs.dart:597:7)

1 MethodChannel._invokeMethod (package:flutter/src/services/platform_channel.dart:158:18)

2 VideoThumbnail.thumbnailFile (package:video_thumbnail/video_thumbnail.dart:44:12)

3 _TrimmerViewPageState.build. (package:video_thumbnail_example/trimmer_view_page.dart:194:38)

So, the thumbnailData works? Only the thumbnailFile failed, right? Check your iOS external storage write permission. Also switch to use the thumbnailData then write the data into file by yourself.

[lan2000]

Both thumbnailFile and thumbnailData have the same error. I have checked the storage permissions.

------------------ 原始邮件 ------------------ 发件人: "John @.>; 发送时间: 2021年8月18日(星期三) 中午11:06 收件人: @.>; 抄送: @.>; @.>; 主题: Re: [justsoft/video_thumbnail] Get the video thumbnail error (#82)

Make sure the second video is readable, before call the thumbnail function, try to read the content from the video file.

Use the thumbnailData instead of thumbnailFile to see any difference.

It has been confirmed that the video is readable, and the video can be played directly An error is reported when thumbnailFile:

couldn't generate thumbnail, error:Error Domain=AVFoundationErrorDomain Code=-11832 "Cannot Open" UserInfo={NSLocalizedFailureReason=This media cannot be used., NSLocalizedDescription=Cannot Open, NSUnderlyingError=0x283b15260 {Error Domain=NSOSStatusErrorDomain Code=-12431 "(null)"}} [VERBOSE-2:ui_dart_state.cc(199)] Unhandled Exception: PlatformException(IO Error, Failed to write data to file, null, null)

0 StandardMethodCodec.decodeEnvelope (package:flutter/src/services/message_codecs.dart:597:7)

1 MethodChannel._invokeMethod (package:flutter/src/services/platform_channel.dart:158:18)

2 VideoThumbnail.thumbnailFile (package:video_thumbnail/video_thumbnail.dart:44:12)

3 _TrimmerViewPageState.build. (package:video_thumbnail_example/trimmer_view_page.dart:194:38)

So, the thumbnailData works? Only the thumbnailFile failed, right? Check your iOS external storage write permission. Also switch to use the thumbnailData then write the data into file by yourself.

— You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub, or unsubscribe. Triage notifications on the go with GitHub Mobile for iOS or Android.

[justsoft]

Try to use ffmpeg to convert to another format of the video or different color space to see any difference?

[behlsoft]

facing same issue.. 1st time it works fine but second time it fails...

[sadaqatdev]

why this issue is close , it still occurring in latest version of package

[justsoft]

Please check out the new 0.5.0 version. Thanks.

[haozi5460]

facing same issue.. 1st time it works fine but second time it fails...

The same issue 1st time it works fine but second time it fails... V0.5.0

[justsoft]

Please provide me an URL which I can repro this issue. Thanks