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Implement get_preset_file() in cmdutils.h and use it to factorize code

Browse Source 
from ffmpeg.c and ffserver.c.

Originally committed as revision 25679 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Stefano Sabatini 2010-11-04 23:07:04 +00:00
parent 58b4e5407d
commit 6e872935db
4 changed files with 58 additions and 45 deletions
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30
cmdutils.c
View File

@ -748,6 +748,36 @@ int64_t guess_correct_pts(PtsCorrectionContext *ctx, int64_t reordered_pts, int6
return pts;
}
FILE *get_preset_file(char *filename, size_t filename_size,
const char *preset_name, int is_path, const char *codec_name)
{
FILE *f = NULL;
int i;
const char *base[3]= { getenv("FFMPEG_DATADIR"),
getenv("HOME"),
FFMPEG_DATADIR,
};
if (is_path) {
av_strlcpy(filename, preset_name, filename_size);
f = fopen(filename, "r");
} else {
for (i = 0; i < 3 && !f; i++) {
if (!base[i])
continue;
snprintf(filename, filename_size, "%s%s/%s.ffpreset", base[i], i != 1 ? "" : "/.ffmpeg", preset_name);
f = fopen(filename, "r");
if (!f && codec_name) {
snprintf(filename, filename_size,
"%s%s/%s-%s.ffpreset", base[i], i != 1 ? "" : "/.ffmpeg", codec_name, preset_name);
f = fopen(filename, "r");
}
}
}
return f;
}
#if CONFIG_AVFILTER
static int ffsink_init(AVFilterContext *ctx, const char *args, void *opaque)

20
cmdutils.h
View File

@ -261,6 +261,26 @@ void init_pts_correction(PtsCorrectionContext *ctx);
*/
int64_t guess_correct_pts(PtsCorrectionContext *ctx, int64_t pts, int64_t dts);
/**
* Get a file corresponding to a preset file.
*
* If is_path is non-zero, look for the file in the path preset_name.
* Otherwise search for a file named arg.ffpreset in the directories
* $FFMPEG_DATADIR (if set), $HOME/.ffmpeg, and in the datadir defined
* at configuration time, in that order. If no such file is found and
* codec_name is defined, then search for a file named
* codec_name-preset_name.ffpreset in the above-mentioned directories.
*
* @param filename buffer where the name of the found filename is written
* @param filename_size size in bytes of the filename buffer
* @param preset_name name of the preset to search
* @param is_path tell if preset_name is a filename path
* @param codec_name name of the codec for which to look for the
* preset, may be NULL
*/
FILE *get_preset_file(char *filename, size_t filename_size,
const char *preset_name, int is_path, const char *codec_name);
#if CONFIG_AVFILTER
#include "libavfilter/avfilter.h"

23
ffmpeg.c
View File

@ -4030,32 +4030,11 @@ 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[3]= { getenv("FFMPEG_DATADIR"),
getenv("HOME"),
FFMPEG_DATADIR,
};
if (*opt != 'f') {
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 != 1 ? "" : "/.ffmpeg", codec_name, arg);
f= fopen(filename, "r");
}
}
} else {
av_strlcpy(filename, arg, sizeof(filename));
f= fopen(filename, "r");
}
if(!f){
if (!(f = get_preset_file(filename, sizeof(filename), arg, *opt == 'f', codec_name))) {
fprintf(stderr, "File for preset '%s' not found\n", arg);
ffmpeg_exit(1);
}

22
ffserver.c
View File

@ -3972,27 +3972,11 @@ static int ffserver_opt_preset(const char *arg,
{
FILE *f=NULL;
char filename[1000], tmp[1000], tmp2[1000], line[1000];
int i, ret = 0;
const char *base[3]= { getenv("FFMPEG_DATADIR"),
getenv("HOME"),
FFMPEG_DATADIR,
};
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){
int ret = 0;
AVCodec *codec = avcodec_find_encoder(avctx->codec_id);
if (codec) {
snprintf(filename, sizeof(filename), "%s%s/%s-%s.ffpreset", base[i], i != 1 ? "" : "/.ffmpeg", codec->name, arg);
f= fopen(filename, "r");
}
}
}
if(!f){
if (!(f = get_preset_file(filename, sizeof(filename), arg, 0,
codec ? codec->name : NULL))) {
fprintf(stderr, "File for preset '%s' not found\n", arg);
return 1;
}