See the console session. I have 1.srt and ask ffmpeg to extract -ss 0:00:0 -to 0:00:30.
The tricky part is that, the subtitle file has a line spanning 00:00:00,400 --> 00:01:15,300. I expect ffmpeg to give me a subtitle 00:00:00,400 --> 0:00:30. But it actually gives the original full subtitle. Is it expected or a bug? Can ffmpeg break into a subtitle line? ``` $ cat 1.srt 00:00:00,400 --> 00:01:15,300 This is an example of a subtitle. $ ffmpeg.exe -i 1.srt -ss 0:00:0 -to 0:00:30 -c srt output.srtffmpeg version 2025-10-01-git-1a02412170-full_build-www.gyan.dev Copyright (c) 2000-2025 the FFmpeg developers built with gcc 15.2.0 (Rev8, Built by MSYS2 project) configuration: --enable-gpl --enable-version3 --enable-static --disable-w32threads --disable-autodetect --enable-fontconfig --enable-iconv --enable-gnutls --enable-lcms2 --enable-libxml2 --enable-gmp --enable-bzlib --enable-lzma --enable-libsnappy --enable-zlib --enable-librist --enable-libsrt --enable-libssh --enable-libzmq --enable-avisynth --enable-libbluray --enable-libcaca --enable-libdvdnav --enable-libdvdread --enable-sdl2 --enable-libaribb24 --enable-libaribcaption --enable-libdav1d --enable-libdavs2 --enable-libopenjpeg --enable-libquirc --enable-libuavs3d --enable-libxevd --enable-libzvbi --enable-liboapv --enable-libqrencode --enable-librav1e --enable-libsvtav1 --enable-libvvenc --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs2 --enable-libxeve --enable-libxvid --enable-libaom --enable-libjxl --enable-libvpx --enable-mediafoundation --enable-libass --enable-frei0r --enable-libfreetype --enable-libfribidi --enable-libharfbuzz --enable-liblensfun --enable-libvidstab --enable-libvmaf --enable-libzimg --enable-amf --enable-cuda-llvm --enable-cuvid --enable-dxva2 --enable-d3d11va --enable-d3d12va --enable-ffnvcodec --enable-libvpl --enable-nvdec --enable-nvenc --enable-vaapi --enable-libshaderc --enable-vulkan --enable-libplacebo --enable-opencl --enable-libcdio --enable-openal --enable-libgme --enable-libmodplug --enable-libopenmpt --enable-libopencore-amrwb --enable-libmp3lame --enable-libshine --enable-libtheora --enable-libtwolame --enable-libvo-amrwbenc --enable-libcodec2 --enable-libilbc --enable-libgsm --enable-liblc3 --enable-libopencore-amrnb --enable-libopus --enable-libspeex --enable-libvorbis --enable-ladspa --enable-libbs2b --enable-libflite --enable-libmysofa --enable-librubberband --enable-libsoxr --enable-chromaprint --enable-whisper libavutil 60. 13.100 / 60. 13.100 libavcodec 62. 16.100 / 62. 16.100 libavformat 62. 6.100 / 62. 6.100 libavdevice 62. 2.100 / 62. 2.100 libavfilter 11. 9.100 / 11. 9.100 libswscale 9. 3.100 / 9. 3.100 libswresample 6. 2.100 / 6. 2.100 Input #0, srt, from '1.srt': Duration: N/A, bitrate: N/A Stream #0:0: Subtitle: subrip (srt) Stream mapping: Stream #0:0 -> #0:0 (subrip (srt) -> subrip (srt)) Press [q] to stop, [?] for help Output #0, srt, to 'output.srt': Metadata: encoder : Lavf62.6.100 Stream #0:0: Subtitle: subrip Metadata: encoder : Lavc62.16.100 srt [out#0/srt @ 0000027a4ed681c0] video:0KiB audio:0KiB subtitle:0KiB other streams:0KiB global headers:0KiB muxing overhead: 103.030303% size= 0KiB time=00:01:15.30 bitrate= 0.0kbits/s speed=1.04e+04x elapsed=0:00:00.00 $ cat output.srt1 00:00:00,400 --> 00:01:15,300 This is an example of a subtitle. ``` _______________________________________________ ffmpeg-user mailing list -- [email protected] To unsubscribe send an email to [email protected]
