转换字幕
从srt转换出ass字幕文件
ffmpeg -i subtitle.srt subtitle.ass
举例:
➜ ffmpeg_edit_subtitle ffmpeg -i subtitle.srt subtitle.ass
ffmpeg version 3.4.2 Copyright (c) 2000-2018 the FFmpeg developers
built with Apple LLVM version 9.0.0 (clang-900.0.39.2)
configuration: --prefix=/usr/local/Cellar/ffmpeg/3.4.2 --enable-shared --enable-pthreads --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-ldflags= --disable-jack --enable-gpl --enable-libmp3lame --enable-libx264 --enable-libxvid --enable-opencl --enable-videotoolbox --disable-lzma
libavutil 55. 78.100 / 55. 78.100
libavcodec 57.107.100 / 57.107.100
libavformat 57. 83.100 / 57. 83.100
libavdevice 57. 10.100 / 57. 10.100
libavfilter 6.107.100 / 6.107.100
libavresample 3. 7. 0 / 3. 7. 0
libswscale 4. 8.100 / 4. 8.100
libswresample 2. 9.100 / 2. 9.100
libpostproc 54. 7.100 / 54. 7.100
Input #0, srt, from 'subtitle.srt':
Duration: N/A, bitrate: N/A
Stream #0:0: Subtitle: subrip
Output #0, ass, to 'subtitle.ass':
Metadata:
encoder : Lavf57.83.100
Stream #0:0: Subtitle: ass (ssa)
Metadata:
encoder : Lavc57.107.100 ssa
Stream mapping:
Stream #0:0 -> #0:0 (subrip (srt) -> ass (ssa))
Press [q] to stop, [?] for help
size= 33kB time=00:26:17.56 bitrate= 0.2kbits/s speed=3.6e+05x
video:0kB audio:0kB subtitle:23kB other streams:0kB global headers:1kB muxing overhead: 42.551056%