With FFmpeg 0.9, the
-newsubtitle option was removed. If you want to add all input files' video/audio/subtitle streams to the output, use the
-map options, e.g.:
ffmpeg -i movie_input.m4v -i subtitles.srt -c:v copy -c:a copy -c:s mov_text \
-map 0 -map 1 out.m4v
This will copy video and audio streams, but encode the subtitles to
mov_text, which is the only officially supported subtitle format for MP4. SRT by default won't work.
map options here specify that all the streams from the first file (
0) and the second file (
1) will be copied, so it'd work even if your original had multiple audio streams, for example.
For a detailed article on how to use the
map option, see the FFmpeg wiki.
Reason for removing those options from the Changelog:
-newvideo/-newaudio/-newsubtitle options were removed. Not only were they
irregular and highly confusing, they were also redundant. In avconv the -map
option will create new streams in the output file and map input streams to
them. E.g. avconv -i INPUT -map 0 OUTPUT will create an output stream for
each stream in the first input file.