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Allow setting the environment variable FFMPEG_DATADIR to locate preset files.

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Patch by Robert Krüger <krueger signal7 de>.

Originally committed as revision 22923 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Robert Krüger 2010-04-20 17:37:06 +00:00 committed by Ronald S. Bultje
parent bf29cbc2cc
commit 2328e5a289
2 changed files with 10 additions and 7 deletions
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6
doc/ffmpeg-doc.texi
View File

@ -806,9 +806,9 @@ preset options identifies the preset file to use according to the
following rules:
First ffmpeg searches for a file named @var{arg}.ffpreset in the
directories @file{$HOME/.ffmpeg}, and in the datadir defined at
configuration time (usually @file{PREFIX/share/ffmpeg}) in that
order. For example, if the argument is @code{libx264-max}, it will
directories @file{$FFMPEG_DATADIR} (if set), and @file{$HOME/.ffmpeg}, and in
the datadir defined at configuration time (usually @file{PREFIX/share/ffmpeg})
in that order. For example, if the argument is @code{libx264-max}, it will
search for the file @file{libx264-max.ffpreset}.
If no such file is found, then ffmpeg will search for a file named

11
ffmpeg.c
View File

@ -3890,19 +3890,22 @@ static int opt_preset(const char *opt, const char *arg)
FILE *f=NULL;
char filename[1000], tmp[1000], tmp2[1000], line[1000];
int i;
const char *base[2]= { getenv("HOME"),
const char *base[3]= { getenv("FFMPEG_DATADIR"),
getenv("HOME"),
FFMPEG_DATADIR,
};
if (*opt != 'f') {
for(i=!base[0]; i<2 && !f; i++){
snprintf(filename, sizeof(filename), "%s%s/%s.ffpreset", base[i], i ? "" : "/.ffmpeg", arg);
for(i=0; i<3 && !f; i++){
if(!base[i])
continue;
snprintf(filename, sizeof(filename), "%s%s/%s.ffpreset", base[i], i != 1 ? "" : "/.ffmpeg", arg);
f= fopen(filename, "r");
if(!f){
char *codec_name= *opt == 'v' ? video_codec_name :
*opt == 'a' ? audio_codec_name :
subtitle_codec_name;
snprintf(filename, sizeof(filename), "%s%s/%s-%s.ffpreset", base[i], i ? "" : "/.ffmpeg", codec_name, arg);
snprintf(filename, sizeof(filename), "%s%s/%s-%s.ffpreset", base[i], i != 1 ? "" : "/.ffmpeg", codec_name, arg);
f= fopen(filename, "r");
}
}