| #!/bin/sh |
| |
| # Copyright (c) 2011 Nicolas George |
| # |
| # This file is part of FFmpeg. |
| # |
| # FFmpeg is free software; you can redistribute it and/or |
| # modify it under the terms of the GNU Lesser General Public |
| # License as published by the Free Software Foundation; either |
| # version 2.1 of the License, or (at your option) any later version. |
| # |
| # FFmpeg is distributed in the hope that it will be useful, |
| # but WITHOUT ANY WARRANTY; without even the implied warranty of |
| # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| # Lesser General Public License for more details. |
| # |
| # You should have received a copy of the GNU Lesser General Public |
| # License along with FFmpeg; if not, write to the Free Software Foundation, |
| # Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| |
| set -e |
| |
| config="$1" |
| out="$2" |
| test -n "$out" |
| |
| outval="" |
| |
| add_line () { |
| outval="$outval$* |
| " |
| } |
| |
| parse_config_h () { |
| while read define var value; do |
| case "$define $var $value" in |
| "#define CONFIG_"*_*" 1") eval "$var=1";; |
| esac |
| done |
| } |
| |
| define_codecid () { |
| id="$1" |
| n=${1#CODEC_ID_} |
| add_line "case ${id}:" |
| eval "c=\${CONFIG_${n}_DECODER}:\${CONFIG_${n}_ENCODER}" |
| case "$c" in |
| 1:*) s="decoder";; |
| *:1) s="encoder";; |
| *) s="";; |
| esac |
| case "$s" in |
| "") add_line " return \"$n\";" ;; |
| *) |
| add_line " { extern AVCodec ff_${n}_${s};" |
| add_line " return ff_${n}_${s}.name; }" |
| ;; |
| esac |
| } |
| |
| parse_enum_codecid () { |
| while read line; do |
| case "$line" in |
| "};") break;; |
| *CODEC_ID_FIRST*=*) ;; |
| CODEC_ID_*) define_codecid ${line%%[=,]*};; |
| esac |
| done |
| } |
| |
| parse_avcodec_h () { |
| while read line; do |
| case "$line" in |
| "enum CodecID {") parse_enum_codecid; break;; |
| esac |
| done |
| } |
| |
| parse_config_h < "$config" |
| parse_avcodec_h # use stdin |
| sed -e '/case.*:/!y/ABCDEFGHIJKLMNOPQRSTUVWXYZ/abcdefghijklmnopqrstuvwxyz/' \ |
| -e 's/extern avcodec /extern AVCodec /' > "$out" <<EOF |
| $outval |
| EOF |