我正在尝试使用以下句子来剪切视频的一小部分：
ffmpeg.exe -i video.wmv -ss 00:20:02 -to 00:20:09 -crf 22 "C:\test.mp4" -y
但是，ffmpeg挂起，显示如下消息：
[asf @ 03327b00] too long payload 0kB time=00:00:00.00 bitrate=N/A speed= 0x
Last message repeated 352 times
[asf @ 03327b00] too long payload 0kB time=00:00:00.00 bitrate=N/A speed= 0x
Last message repeated 331 times
我已经等待了30分钟以上，而ffmpeg没有完成剪切。有谁知道如何解决这个问题？
任何建议都会受到赞赏
PD。源文件的ffprobe输出如下：
ffprobe version N-81831-g97e7f03 Copyright (c) 2007-2016 the FFmpeg developers
built with gcc 5.4.0 (GCC)
configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-dxva2 --enable-libmfx --enable-nvenc --enable-avisynth --enable-bzlib --enable-libebur128 --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libfreetype --enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenh264 --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-libzimg --enable-lzma --enable-decklink --enable-zlib
libavutil 55. 32.100 / 55. 32.100
libavcodec 57. 60.101 / 57. 60.101
libavformat 57. 51.102 / 57. 51.102
libavdevice 57. 0.102 / 57. 0.102
libavfilter 6. 63.100 / 6. 63.100
libswscale 4. 1.100 / 4. 1.100
libswresample 2. 2.100 / 2. 2.100
libpostproc 54. 0.100 / 54. 0.100
[asf @ 03b7afe0] too long payload
Last message repeated 159 times
Input #0, asf, from 'F:\video.wmv':
Metadata:
WMFSDKVersion : 11.0.5721.5145
WMFSDKNeeded : 0.0.0.0000
IsVBR : 0
DeviceConformanceTemplate: M
Duration: 01:41:25.95, start: 0.000000, bitrate: 1649 kb/s
Stream #0:0(eng): Video: wmv2 (WMV2 / 0x32564D57), yuv420p, 640x480, 1500 kb/s, 29.97 fps, 29.97 tbr, 1k tbn, 1k tbc
Stream #0:1(eng): Audio: wmav2 (a[1][0][0] / 0x0161), 44100 Hz, 2 channels, fltp, 128 kb/s