Converte SWF para MP4

swf2mp4.sh

#!/bin/bash

echo "swf2mp4.sh - flash player to mp4 conversion script"
echo " * Requires gnash, mplayer2 and ffmpeg CLI tools"
echo " * Source https://stackoverflow.com/a/39304421 (Aleksey Kontsevich)"


SWFFILE=$1
MP4FILE=${SWFFILE%.*}.mp4
TMPFILE=$(cat /dev/urandom | tr -dc 'a-zA-Z' | fold -w 32 | head -n 1).bin
TMPWAV=$(cat /dev/urandom | tr -dc 'a-zA-Z' | fold -w 32 | head -n 1).wav
TMPMP4=$(cat /dev/urandom | tr -dc 'a-zA-Z' | fold -w 32 | head -n 1).mp4

# create raw-dump
GNASHCMD="dump-gnash -1 -r 3 -v -D $TMPFILE -A $TMPWAV $SWFFILE"
OUTPUT="$(exec $GNASHCMD)"

# extract parameters
WIDTH="$(echo $OUTPUT | grep -o 'WIDTH=[^, }]*' | sed 's/^.*=//')"
HEIGHT="$(echo $OUTPUT | grep -o 'HEIGHT=[^, }]*' | sed 's/^.*=//')"
FPS="$(echo $OUTPUT | grep -o 'FPS_ACTUAL=[^, }]*' | sed 's/^.*=//')"

# create raw, uncompressed mp4 file
mplayer $TMPFILE -vo yuv4mpeg:file=$TMPMP4 -demuxer rawvideo -rawvideo fps=$FPS:w=$WIDTH:h=$HEIGHT:format=bgra

# create compressed mp4 with ffmpeg
ffmpeg -i $TMPMP4 -i $TMPWAV $MP4FILE

# clean up
rm -rf $TMPFILE
rm -rf $TMPMP4
rm -rf $TMPWAV