encode2mpeglight

来自「君正早期ucos系统(只有早期的才不没有打包成库),MPLAYER,文件系统,图」· 代码 · 共 1,545 行 · 第 1/5 页

            isarg $1 "$2" Avi
            shift
            ;;
        -hispeed) #
            # increase the encoding speed of 25-50% (with -encode n:1:1); the
            # output video stream will be bigger and can have poor quality; this
            # option is mainly intented for testing, but it can be used if you
            #-want to create more quickly an MPEG-4/AVI or a DVD.
            [[ $2 = doc || $2 = help ]] && isarg $1 $2 Avi
            hispeed=1
            ;;
        -bframes) #<0-4>
            # specify the number of B frames; if -encode is n:3:i the default 2,
            #-otherwise the default is no B frames; for VCD the default is 2
            echo "$2" | grep -q '^[0-4]$' && bframes=$2
            isarg $1 "$2" Avi
            shift
            ;;
        -vcustom) #<libavcodec options>
            # specify a custom set of video options for libavcodec, use with
            #--encode n:1:i
            vcustom=$2
            isarg $1 "$2" Avi
            shift
            ;;
        -acustom) #<mp3lame options>
            # specify a custom set of lame options (with -encode 2:m:i) or faac
            #-options (with -encode 8:m:i)
            acustom=$2
            isarg $1 "$2" Avi
            shift
            ;;
        -encsid) #<sid0,sid1,...>
            #-dump the DVD vobsub, sid is the number you give the -sid option
            # of MPlayer.
            encsid=( ${2//,/ } )
            isarg $1 "$2" subtitle
            shift
            ;;
        -encsdx) #<sid0,sid1,...>
            # if you dump subtitle 2 and 4 and you want them to have id 0 and 1
            #-use -encsid 2,4 -encsdx 0,1
            encsdx=( ${2//,/ } )
            isarg $1 "$2" subtitle
            shift
            ;;
        -encsla) #<sla0,sla1,...>
            #-see doc/html/subtitle.html
            encsla=( ${2//,/ } )
            isarg $1 "$2" subtitle
            shift
            ;;
        -usespeed) #
            # do frame rate conversion changing the playback speed; this option
            # can be used if you are converting from NTSC 24fps, with or without
            # telecine, to PAL 25fps and viceversa; during normal frame rate
            # conversion, frames are skipped or duplicated as needed; with this
            #-option all the frames are encoded
            [[ $2 = doc || $2 = help ]] && isarg $1 $2 mpeg
            usespeed=1
            ;;
        -usesbr) #[1-6|>100]
            # use the suggested video bitrate to set the output stream size
            #   1 - for 650MB CD 		4 - for 2 x 650MB CD
            #   2 - for 700MB CD (default) 	5 - for 2 x 700MB CD
            #   3 - for 800MB CD 		6 - for 2 x 800MB CD
            #   n where n > 100 will set the file size to n MB
            #-with -multiaudio you must to set the streamsize in MB
            usesbr=2
            SBR=(650 700 800 "2 x 650" "2 x 700" "2 x 800")
            echo "$2" | grep -q '^[1-6]$' && usesbr=$2 && shift
            echo "$2" | grep -qE '^[1-9][0-9]{2,}$' && usesbr=$2 && shift
            [[ $2 = doc || $2 = help ]] && isarg $1 $2 Avi
            ;;
        -cpu) #<n>
            #-number of cpu to use, default all the cpu present in the system
            cpu=1
            echo "$2" | grep -q '^[1-8]$' && cpu=$2
            isarg $1 "$2" Avi
            shift
            ;;
        -interlaced)
            #-turn on optimization for interlaced source video. 
            [[ $2 = doc || $2 = help ]] && isarg $1 $2 $([[ $mpeg ]] && echo mpeg || echo Avi)
            interlaced=1
            ;;
        -slidefps) #<n>
            # fps to use when creating video from pictures, default is 1; if
            # there is a audio file associated with a picture, the duration of
            #-the audio file is used
            isarg $1 "$2" images
            slidefps=$(awk -v a=$2 'BEGIN{printf("%.3f",1/a)}')
            shift
            ;;
        -slideaudio) #<audio file>
            # use the content of <audio file> as audio stream when creating video
            #-from pictures; it works correctly only if used with mf://singlepic
            slideaudio=$2
            if [[ ! -f $2 && $2 != /dev/null ]]; then
                [[ $2 = doc || $2 = help || ! $2 ]] && isarg $1 "$2" images || ! echo "**ERROR: [$PROGNAME] slide audio file '$2' not found" || exit 1
            fi
            shift
            ;;
        -norc)
            #-do not use the settings in the file $HOME/.encode2mpegrc
            [[ $2 = doc || $2 = help ]] && isarg $1 $2 rc
            ;;
        -debug)
            # make a more verbose log file and creates a debug file; if you are
            # submitting a bug report, use this option and compress and send the
            #-log file and the debug file
            [[ $2 = doc || $2 = help ]] && isarg $1 $2
            echo "$2" | grep -q '^[0-7]$' && DEBUG=$2 && shift || DEBUG=3
            ;;
        (-frames)
            frames=$2
            isarg $1 $2
            shift
            ;;
        (-channels)
            channels=$2
            isarg $1 $2
            shift
            ;;
        (-srate)
            MPLAYEROPT=( "${MPLAYEROPT[@]}" -srate $2 -af-adv force=1 )
            srate=$2
            isarg $1 $2
            shift
            ;;
        (-endpos)
            endpos=$2
            isarg $1 $2
            shift
            ;;
        (-hr-edl-seek)
            MENCODEROPT=( "${MENCODEROPT[@]}" $1 )
            ;;
        (-vf)
            vf="-vf $2"
            MPLAYEROPT=( "${MPLAYEROPT[@]}" $vf )
            isarg $1 $2
            shift
            ;;
        (-af)
            af="-af $2"
            isarg $1 $2
            shift
            ;;
        (-dvd-device)
            dvddev=$2
            isarg $1 $2
            shift
            ;;
        (mf://*)
            MPLAYEROPT[${#MPLAYEROPT[*]}]=$1
            pictsrc=1
            a=$IFS
            IFS=,
            PICTSRC=( ${1#mf://} )
            IFS=$a
            srate=48000
            ;;
        (-sub)
            [[ ! -f $2 ]] && echo "**ERROR: [$PROGNAME] subtitle file '$2' not found" && exit 1
            MPLAYEROPT=( "${MPLAYEROPT[@]}" $1 "$2" )
            subrender=1
            shift
            ;;
        (-mpeg|-mpegonly|-nosplit) ;;
        *)
            if [[ ! $TOOL ]]; then
                [[ ${1:0:1} = - ]] && ! echo "${MOPT[@]}" | grep -q "\"${1#-}\"" && \
                  echo -e "Unknown option $1\nIf this is a valid MPlayer option add '-toolopts mplayer' in front of it" && exit 1
                MPLAYEROPT[${#MPLAYEROPT[*]}]=$1
            else
                case $TOOL in
                    *)
                        MPLAYEROPT[${#MPLAYEROPT[*]}]=$1
                        ;;
                esac
            fi
            ;;
    esac
    shift
done

[[ -s ~/.encode2mpegrc && ! $norc ]] && do_log "   INFO: [$PROGNAME] using .encode2mpegrc settings: '$(<~/.encode2mpegrc)'"
if [[ $subrender || $harddup ]]; then
    if [[ $vf ]]; then
        vf=$vf${subrender:+,expand=::::1}
        [[ $harddup ]] && ! echo $vf | grep -q harddup && vf=$vf,harddup
        for ((a=0;a<${#MPLAYEROPT[*]};a++)); do
            [[ ${MPLAYEROPT[a]} = -vf ]] && MPLAYEROPT[a+1]=${vf#-vf }
        done
    else
        vf="-vf ${subrender:+expand=::::1}${harddup:+${subrender:+,}harddup}"
        MPLAYEROPT=( "${MPLAYEROPT[@]}" $vf )
    fi
fi

###############################################################################
#### debug part
###############################################################################
if ((DEBUG)); then
    if ((DEBUG & 1)); then
        #### redirect stdout and stderr to the debug file
    exec 3>&1
    rm -f "$output".debug.fifo
    mkfifo "$output".debug.fifo
    tee "$output".debug <"$output".debug.fifo >&3 &
    PROCTEE=$!
    exec &>"$output".debug.fifo
        trap 'rm "$output".debug.fifo' 0
    fi
    if ((DEBUG & 2)); then
        #### catch mplayer/mencoder errors
        mplayer () {
            command mplayer "$@"
            ret=$? ; (( ret )) && error_line "$FUNCNAME $*" || true
        }
        mencoder () {
            command mencoder "$@"
            ret=$? ; (( ret )) && error_line "$FUNCNAME $*" || true
        }
    fi
    ((DEBUG & 4)) && set -x
fi

###############################################################################
#### ERROR if some options conflict is detected part 1/2
###############################################################################
#### mplayer/mencoder
for a in mplayer mencoder ; do
    type -f $a &>/dev/null || ! echo "**ERROR: [$PROGNAME] $a missing, install $(echo ${a:0:2} | tr '[:lower:]' '[:upper:]')${a:2}" || exit 1
done
#### output stream name check
[[ ! $output ]] && echo "**ERROR: [$PROGNAME] name of the output stream missing (-o name)" && exit 1
#### unspecified video norm
[[ ! $videonorm && step -gt 1 && ! ( $mpeg && ${encode%,*} == ?:0:? && ! $menu ) && ${#TITLESET[*]} -eq 0 ]] && \
  echo "**ERROR: [$PROGNAME] you must specify a video norm (-n n|p|s)" && exit 1
#### libfaac check
if [[ ${encode%,*} == 8:?:? ]]; then
    ! mencoder -oac help 2>/dev/null | grep -q faac && echo "**ERROR: [$PROGNAME] missing libfaac support in mencoder [-encode 8:m:i]" && exit 1
fi
#### mpeg4
if [[ $vcodec = mpeg4 ]]; then
    [[ $pictsrc && $step -gt 1 && $mpeg ]] && echo "**ERROR: [$PROGNAME] -vcodec mpeg4, -mpeg and mf://file are not compatible" && exit 1
fi
#### pictsrc
if [[ $pictsrc ]]; then
    [[ $slideaudio != /dev/null && ${encode%,*} == 0:?:? && $mpeg ]] && \
      echo "**ERROR: [$PROGNAME] -encode 0:m:i is not compatible with mf:// in MPEG Mode" && exit 1
    [[ $audioonly ]] && echo "**ERROR: [$PROGNAME] -audioonly does not work with mf://" && exit 1
fi
#### -encode 1:m:i is not allowed
[[ ${encode%,*} == 1:?:? ]] && echo "**ERROR: [$PROGNAME] do not use -encode 1:m:i" && exit 1

###############################################################################
#### WARN if some options conflict is detected
###############################################################################
#### missing toolame support
if [[ ${encode%,*} == 7:?:? ]]; then
    if ! mencoder -oac help 2>/dev/null | grep -q t[wo]olame ; then
        encode=4:${encode#?:}
        do_log "++ WARN: [$PROGNAME] missing toolame support in mencoder, setting -encode $encode"
    else
        mencoder -oac help 2>/dev/null | grep -q toolame && TOOLAME=toolame || TOOLAME=twolame
    fi
fi

###############################################################################
#### set default values for unspecified parameters
###############################################################################
if [[ ! $multiaudio ]]; then
    audiostream=1
fi
###############################################################################
if [[ $encode ]]; then
    case ${encode%%:*} in
        0) [[ ! $pictsrc ]] && 
               AFMT=acopy ;;
        2|3|5) AFMT=mp3 ;;
        4|7)   AFMT=mp2 ;;
        6)     AFMT=ac3 ;;
        8)     AFMT=aac ;;
    esac
    [[ $AFMT ]] && eval : ${audioformat:-\${$AFMT:=copy\}}
fi
: ${frameformat:=VCD}
: ${audioformat:=${AFMT:-mp2}}
: ${mp1:=mp2enc}
((${mpegchannels:-2}>2)) && : ${mp2:=musicin} || : ${mp2:=mp2enc}
: ${mp3:=lame}
: ${ac3:=mencoder}
: ${dts:=copy}
: ${aac:=faac}
case $audioformat in
    mp1)
        case ${mpegchannels:-2} in
            1) : ${abr:=192} ;;
            2) : ${abr:=384} ;;
        esac
        ;;
    mp2)
        case ${mpegchannels:-2} in
            1) : ${abr:=112} ;;
            2) : ${abr:=224} ;;
            [3-6]) : ${abr:=384} ;;