cutvid: allow to select subtitle to hardcode

.config/zsh/completions/_cutvid

@@ -33,7 +33,7 @@ _arguments '-h[short help text]' \
            '--to[timestamp]:timestamp:' \
            '--vencoder[video encoder]:encoder:_cutvid_vencoders' \
            '--aencoder[audio encoder]:encoder:_cutvid_aencoders' \
-           '--hardcode-subs[hardcode ASS subtitles]' \
+           '--hardcode-subs[hardcode ASS subtitles]:number:' \
            '1:input file:_files' \
            '2:output file:_files' \
            '*:ffmpeg options:'

.config/zsh/functions/cutvid

@@ -12,13 +12,13 @@ local -a o_aencoder=()
 local -a o_hardcode_subs=()
 zparseopts -D -K -- h=o_help -help=o_help -from:=o_from -to:=o_to \
            -vencoder:=o_vencoder -aencoder:=o_aencoder \
-           -hardcode-subs=o_hardcode_subs
+           -hardcode-subs:=o_hardcode_subs
 if [[ ${#o_help} -ne 0 || ! -v 2 || ${#o_from} -ne 2 || ${#o_to} -ne 2 ]]; then
     local ret=$(( ${#o_help} ^ 1 ))
     print -u $(( 1 + ${ret} )) "usage: ${0} [-h|--help]" \
           "--from <HH:MM:SS.MMM> --to <HH:MM:SS.MMM>" \
-          "[--vencoder <ENCODER>] [--aencoder <ENCODER>] [--hardcode-subs]" \
-          "<INPUT FILE> <OUTPUT FILE> [FFMPEG OPTIONS]"
+          "[--vencoder <ENCODER>] [--aencoder <ENCODER>]" \
+          "[--hardcode-subs <NUM>] <INPUT FILE> <OUTPUT FILE> [FFMPEG OPTIONS]"
     print "\e[3mYou can set bitrates with -b:v and -b:a in FFMPEG OPTIONS." \
         "The -vn / -an / -sn / -dn options can be used to skip inclusion of" \
         "video, audio, subtitle and data streams respectively." \
@@ -38,12 +38,14 @@ local vencoder="copy"
 local aencoder="copy"
 [[ ${#o_vencoder} -eq 2 ]] && vencoder=${o_vencoder[2]}
 [[ ${#o_aencoder} -eq 2 ]] && aencoder=${o_aencoder[2]}
+local subnumber=0
+[[ ${#o_hardcode_subs} -eq 2 ]] && subnumber=${o_hardcode_subs[2]}
 local subtitle_options=(-codec:s copy)
 local compat_options=(-pix_fmt yuv420p) # Android doesn't like yuv420p10le
 
 if [[ ${#o_hardcode_subs} -ne 0 ]]; then
     local tmpass=$(mktemp --suffix='.cutvid.ass')
-    ffmpeg -i ${input} -y ${tmpass}
+    ffmpeg -i ${input} -map 0:s:${subnumber} -y ${tmpass}
     subtitle_options=(-sn -vf ass=${tmpass} )
 fi