122 lines
1.8 KiB
Bash
Executable File
122 lines
1.8 KiB
Bash
Executable File
#!/bin/bash
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PARAM=$0
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# Strip path from command name
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PARAM=${PARAM##*/}
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short() {
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echo "Decode AVC (H.264) video and save as YUV 420P raw file"
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}
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help() {
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cat << EOF
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$(short)
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$(info)
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IN_FILE Input stream must be AVC (H.264) video
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OUT_FILE Output stream as YUV 420P
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NOTE: Above paths are read from the container volume /media.
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EOF
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}
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details() {
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cat << EOF
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$(short)
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This script provides a quick reference example using the following
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ffmpeg command:
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ffmpeg \
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-hwaccel qsv \
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-qsv_device \${QSV_DEVICE:-/dev/dri/renderD128} \
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-c:v h264_qsv \
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-i /media/"\${IN_FILE}" \
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-vf hwdownload,format=nv12 -pix_fmt yuv420p \
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-y \
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/media/"\${OUT_FILE}"
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EOF
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}
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arguments=()
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for arg in $*; do
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[[ $arg =~ ^-- ]] && {
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command=${arg/--}
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case $command in
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short) short
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exit 0
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;;
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help) help
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exit 0
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;;
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details) details
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exit 0
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;;
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*) echo "Unrecognized command."
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exit 1
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;;
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esac
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} || {
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arguments+=("$arg")
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}
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done
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info() {
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cat << EOF
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usage: $PARAM INPUT-FILE OUTPUT-FILE
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EOF
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}
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QSV_DEVICE=${QSV_DEVICE:-/dev/dri/renderD128}
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[ "${arguments[0]}" == "" ] || [ "${arguments[1]}" == "" ] && {
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info
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exit 1
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}
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[ ! -e /media/"${arguments[0]}" ] && {
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cat << EOF
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Error: '${arguments[0]}' not found.
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Was the volume /media mounted when launching the container?
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docker ... --volume \$(pwd)/media:/media ...
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or similar?
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EOF
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exit 1
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}
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[ ! -e ${QSV_DEVICE} ] && {
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cat << EOF
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Error: '${QSV_DEVICE}' not found.
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Did you pass /dev/dri to Docker?
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docker ... --device=/dev/dri ...
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or similar?
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EOF
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exit 2
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}
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IN_FILE="${arguments[0]}"
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OUT_FILE="${arguments[1]}"
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ffmpeg \
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-hwaccel qsv \
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-qsv_device ${QSV_DEVICE:-/dev/dri/renderD128} \
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-c:v h264_qsv \
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-i /media/"${IN_FILE}" \
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-vf hwdownload,format=nv12 -pix_fmt yuv420p \
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-y \
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/media/"${OUT_FILE}"
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