mirror of
https://github.com/mpv-player/mpv
synced 2024-12-24 07:42:17 +00:00
162 lines
4.5 KiB
Bash
Executable File
162 lines
4.5 KiB
Bash
Executable File
#!/bin/sh
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case "$0" in
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*/*)
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MYDIR=${0%/*}
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;;
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*)
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MYDIR=.
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;;
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esac
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: ${MPV:=mpv}
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: ${ILDETECT_MPV:=$MPV}
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: ${ILDETECT_MPV:=$MPV}
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: ${ILDETECT_MPVFLAGS:=--start=35% --length=35}
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: ${ILDETECT_DRY_RUN:=}
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: ${ILDETECT_QUIET:=}
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: ${ILDETECT_RUN_INTERLACED_ONLY:=}
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: ${ILDETECT_FORCE_RUN:=}
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: ${MAKE:=make}
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# exit status:
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# 0 progressive
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# 1 telecine
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# 2 interlaced
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# 8 unknown
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# 16 detect fail
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# 17+ mpv's status | 16
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testfun()
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{
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$ILDETECT_MPV "$@" \
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--vf-add=lavfi="[idet]" --msg-level ffmpeg=v \
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--o= --vo=null --no-audio --untimed \
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$ILDETECT_MPVFLAGS \
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| { if [ -n "$ILDETECT_QUIET" ]; then cat; else tee /dev/stderr; fi } \
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| grep "Parsed_idet_0: Multi frame detection: " | tail -n 1
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}
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judge()
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{
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out=`testfun "$@"`
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tff=${out##* TFF:}; tff=${tff%% *}
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bff=${out##* BFF:}; bff=${bff%% *}
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progressive=${out##* Progressive:}; progressive=${progressive%% *}
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undetermined=${out##* Undetermined:}; undetermined=${undetermined%% *}
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case "$tff$bff$progressive$undetermined" in
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*[!0-9]*)
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echo >&2 "ERROR: Unrecognized idet output: $out"
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exit 16
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;;
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esac
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interlaced=$((bff + tff))
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determined=$((interlaced + progressive))
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if [ $undetermined -gt $determined ] || [ $determined -lt 250 ]; then
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echo >&2 "ERROR: Less than 50% or 250 frames are determined."
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[ -n "$ILDETECT_FORCE_RUN" ] || exit 8
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echo >&2 "Assuming interlacing."
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if [ $tff -gt $((bff * 10)) ]; then
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verdict=interlaced-tff
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elif [ $bff -gt $((tff * 10)) ]; then
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verdict=interlaced-bff
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else
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verdict=interlaced
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fi
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elif [ $((interlaced * 20)) -gt $progressive ]; then
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# At least 5% of the frames are interlaced!
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if [ $tff -gt $((bff * 10)) ]; then
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verdict=interlaced-tff
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elif [ $bff -gt $((tff * 10)) ]; then
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verdict=interlaced-bff
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else
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echo >&2 "ERROR: Content is interlaced, but can't determine field order."
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[ -n "$ILDETECT_FORCE_RUN" ] || exit 8
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echo >&2 "Assuming interlacing with default field order."
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verdict=interlaced
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fi
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else
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# Likely progrssive.
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verdict=progressive
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fi
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echo "$verdict"
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}
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judge "$@" --vf-clr
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case "$verdict" in
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progressive)
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[ -n "$ILDETECT_DRY_RUN" ] || \
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[ -n "$ILDETECT_RUN_INTERLACED_ONLY" ] || \
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$ILDETECT_MPV "$@"
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r=$?
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[ $r -eq 0 ] || exit $(($r | 16))
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exit 0
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;;
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interlaced-tff)
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judge "$@" --vf-clr --vf-pre=pullup --field-dominance=top
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case "$verdict" in
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progressive)
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[ -n "$ILDETECT_DRY_RUN" ] || \
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$ILDETECT_MPV "$@" --vf-pre=pullup --field-dominance=top
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r=$?
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[ $r -eq 0 ] || exit $(($r | 16))
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exit 1
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;;
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*)
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[ -n "$ILDETECT_DRY_RUN" ] || \
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$ILDETECT_MPV "$@" --vf-pre=yadif --field-dominance=top
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r=$?
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[ $r -eq 0 ] || exit $(($r | 16))
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exit 2
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;;
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esac
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;;
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interlaced-bff)
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judge "$@" --vf-clr --vf-pre=pullup --field-dominance=bottom
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case "$verdict" in
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progressive)
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[ -n "$ILDETECT_DRY_RUN" ] || \
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$ILDETECT_MPV "$@" --vf-pre=pullup --field-dominance=bottom
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r=$?
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[ $r -eq 0 ] || exit $(($r | 16))
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exit 1
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;;
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*)
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[ -n "$ILDETECT_DRY_RUN" ] || \
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$ILDETECT_MPV "$@" --vf-pre=yadif --field-dominance=bottom
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r=$?
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[ $r -eq 0 ] || exit $(($r | 16))
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exit 2
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;;
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esac
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;;
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interlaced)
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judge "$@" --vf-clr --vf-pre=pullup
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case "$verdict" in
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progressive)
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[ -n "$ILDETECT_DRY_RUN" ] || \
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$ILDETECT_MPV "$@" --vf-pre=pullup
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r=$?
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[ $r -eq 0 ] || exit $(($r | 16))
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exit 1
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;;
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*)
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[ -n "$ILDETECT_DRY_RUN" ] || \
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$ILDETECT_MPV "$@" --vf-pre=yadif
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r=$?
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[ $r -eq 0 ] || exit $(($r | 16))
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exit 2
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;;
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esac
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;;
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*)
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echo >&2 "ERROR: Internal error."
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exit 16
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;;
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esac
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