部分MP4视频播放黑屏

WOod卞

联系方式：飞牛fnOS粉丝群637 WOod卞

相册版本 0.9.4

系统版本1.1.3104

硬件 华擎J3455-ITX

设备ID ccf415ad8c79416e90e628a4ab1e57532f276279

故障现象：该视频在浏览器中播放黑屏，无论是相册还是文件管理器中。手机APP端播放正常，无论是相册内还是文件管理器。本机影音功能正常，可以播放1080P视频，且可以转码，正确调用GPU。所以很奇怪，为什么分布mp4无法播放。

在相册内的MP4的文件 EXIF 信息

{
  "AndroidManufacturer": "Xiaomi",
  "AndroidModel": "M2012K11AC",
  "AndroidVersion": 13,
  "AudioBitsPerSample": 16,
  "AudioChannels": 2,
  "AudioFormat": "mp4a",
  "AudioSampleRate": 48000,
  "AvgBitrate": "8.74 Mbps",
  "Balance": 0,
  "BitDepth": 24,
  "ColorPrimaries": "BT.709",
  "ColorProfiles": "nclx",
  "CompatibleBrands": [
    "isom",
    "mp42"
  ],
  "CompressorID": "hvc1",
  "CreateDate": "2026:02:21 09:49:04",
  "CurrentTime": "0 s",
  "Directory": "/vol2/1000/1.1.Photos/MyK40",
  "Duration": "22.29 s",
  "ExifToolVersion": 12.92,
  "FileAccessDate": "2026:05:21 09:39:14+08:00",
  "FileInodeChangeDate": "2026:03:15 22:08:48+08:00",
  "FileModifyDate": "2026:02:21 17:49:05+08:00",
  "FileName": "VID_20260221_174840.mp4",
  "FilePermissions": "-rw-rw----",
  "FileSize": "26 MB",
  "FileType": "MP4",
  "FileTypeExtension": "mp4",
  "GPSCoordinates": "33 deg 37' 59.88\" N, 118 deg 59' 26.16\" E",
  "GPSLatitude": "33 deg 37' 59.88\" N",
  "GPSLongitude": "118 deg 59' 26.16\" E",
  "GPSPosition": "33 deg 37' 59.88\" N, 118 deg 59' 26.16\" E",
  "GraphicsMode": "srcCopy",
  "HandlerDescription": "SoundHandle",
  "HandlerType": "Audio Track",
  "ImageHeight": 1080,
  "ImageSize": "1920x1080",
  "ImageWidth": 1920,
  "MIMEType": "video/mp4",
  "MajorBrand": "MP4 v2 [ISO 14496-14]",
  "MatrixCoefficients": "BT.709",
  "MatrixStructure": "1 0 0 0 1 0 0 0 1",
  "MediaCreateDate": "2026:02:21 09:49:04",
  "MediaDataOffset": 405384,
  "MediaDataSize": 24357652,
  "MediaDuration": "22.23 s",
  "MediaHeaderVersion": 0,
  "MediaModifyDate": "2026:02:21 09:49:04",
  "MediaTimeScale": 48000,
  "Megapixels": 2.1,
  "MinorVersion": "0.0.0",
  "ModifyDate": "2026:02:21 09:49:04",
  "MovieHeaderVersion": 0,
  "NextTrackID": 3,
  "OpColor": "0 0 0",
  "PosterTime": "0 s",
  "PreferredRate": 1,
  "PreferredVolume": "100.00%",
  "PreviewDuration": "0 s",
  "PreviewImage": "(Binary data 838547 bytes, use -b option to extract)",
  "PreviewTime": "0 s",
  "Rotation": 90,
  "SelectionDuration": "0 s",
  "SelectionTime": "0 s",
  "SourceFile": "/vol2/1000/1.1.Photos/MyK40/VID_20260221_174840.mp4",
  "SourceImageHeight": 1080,
  "SourceImageWidth": 1920,
  "TimeScale": 10000,
  "TrackCreateDate": "2026:02:21 09:49:04",
  "TrackDuration": "22.29 s",
  "TrackHeaderVersion": 0,
  "TrackID": 1,
  "TrackLayer": 0,
  "TrackModifyDate": "2026:02:21 09:49:04",
  "TrackVolume": "0.00%",
  "TransferCharacteristics": "BT.709",
  "VideoFrameRate": 30.03,
  "VideoFullRangeFlag": 0,
  "XResolution": 72,
  "XiaomiProduct**name": "Redmi K40",
  "YResolution": 72
}

黑屏的视频：

WOod卞

确定了。转码问题。影视中也是黑屏。

WOod卞

debug： 为什么系统没有正确调用GPU进行解码。

系统日志中没有错误。其他影音文件转码正常。

飞牛运营同学

感谢反馈！麻烦确认一下是否只有这个 MP4 异常，其他视频、电脑本地播放器和其他设备播放是否正常。如果仅该文件黑屏，请通过飞牛外链提供原视频，我们这边复测确认。