
我想从 usm 文件中提取 subtitle.txt,我尝试使用 ffmpeg,但它显示不支持的文件。Hexedit 显示该文件具有 txt 扩展名。Ffmpeg 支持 demux cri usm 文件,但我不知道该怎么做。
Duration: 00:03:10.00, start: 0.000000, bitrate: 12383 kb/s
Stream #0:0: Video: mpeg1video, yuv420p(tv, progressive), 1280x720 [SAR 1:1 DAR 16:9], 104857 kb/s, 30 fps, 30 tbr, 30 tbn
Side data:
cpb: bitrate max/min/avg: 0/0/0 buffer size: 4554752 vbv_delay: N/A
Stream #0:1: Audio: none, 44100 Hz, 2 channels
Stream #0:2: Audio: none, 44100 Hz, 2 channels
Stream #0:3: Audio: none, 44100 Hz, 2 channels
Stream #0:4: Audio: none, 44100 Hz, 2 channels
Stream #0:5: Audio: none, 44100 Hz, 2 channels
Stream #0:6: Audio: none, 44100 Hz, 2 channels
Stream #0:7: Audio: none, 44100 Hz, 2 channels
Stream #0:8: Audio: none, 44100 Hz, 2 channels
Stream #0:9: Audio: none, 44100 Hz, 2 channels
Stream #0:10: Audio: none, 44100 Hz, 2 channels
Stream #0:11: Subtitle: none
At least one output file must be specified