使GStreamer正确读取带有损坏视频信息的FLV文件

我有一组FLV文件,我想和GStreamer一起玩。所有文件都有不正确的头/元数据,如以下文件:

https://drive.google.com/file/d/1FcKbYd2-D7ZiIG5VpRxpbqshCixp8iaR/view?usp=sharing

VLC和ffplay都可以使用它们的特殊魔法来播放这个文件。尽管如此,Mediainfo显示了该文件的截断视频信息:

Video
Format                                   : AVC
Format/Info                              : Advanced Video Codec
Codec ID                                 : 7
Duration                                 : 12 s 633 ms
Frame rate mode                          : Constant
Frame rate                               : 60.000 FPS
Bit depth                                : 8 bits

对于正确的文件,至少有格式配置文件和级别。

gst-discoverer-1.0 根本不想检测视频流:

Properties:
  Duration: 0:00:00.116000000
  Seekable: yes
  Live: no
  container: Flash
    audio: MPEG-4 AAC
      Stream ID: a72c1038e0bf52d7668cb945588d7bca2547bd58212aa7f08db439aeadfcbd95/audio
      Language: <unknown>
      Channels: 2 (front-left, front-right)
      Sample rate: 48000
      Depth: 32
      Bitrate: 0
      Max bitrate: 0
    video: H.264
      Stream ID: (NULL)
      Width: 0
      Height: 0
      Depth: 0
      Frame rate: 0/1
      Pixel aspect ratio: 1/1
      Interlaced: false
      Bitrate: 0
      Max bitrate: 0

gst-play-1.0 启动,但显示错误且不显示预览:

gst-play-1.0.exe "C:\Users\me\Downloads\custom.flv"
Press 'k' to see a list of keyboard shortcuts.
Now playing C:\Users\me\Downloads\custom.flv
WARNING No decoder available for type 'video/x-h264, stream-format=(string)avc, codec_data=(buffer)000000016742c020da014016ec0440000003004000001e03c60ca80000000168ce3c80'.
WARNING debug information: ../gst/playback/gsturidecodebin.c(960): unknown_type_cb (): /GstPlayBin:playbin/GstURIDecodeBin:uridecodebin0
Redistribute latency...
0:00:12.6 / 0:00:12.6
Reached end of play list.

我正在寻找任何方法,要么让GStreamer正确播放这样的文件(也许有一些插件允许这样做?)要么修复视频标题。