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Don't mangle the input strings. The caller may want to reuse it later.

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Commited in SoC by Bobby Bingham on 2007-07-15 16:13:17

Originally committed as revision 12691 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Vitor Sessak 2008-04-04 20:06:10 +00:00
parent 65a4bd9c9e
commit fc27b8081e
1 changed files with 9 additions and 3 deletions
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12
libavfilter/avfiltergraph.c
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@ -22,6 +22,7 @@
#include <string.h>
#include <stddef.h>
#include "avstring.h"
#include "avfilter.h"
#include "avfiltergraph.h"
@ -55,16 +56,17 @@ void avfilter_graph_add_filter(AVFilterGraph *graph, AVFilterContext *filter)
graph->filters[graph->filter_count - 1] = filter;
}
static AVFilterContext *create_filter_with_args(char *filter)
static AVFilterContext *create_filter_with_args(const char *filt)
{
AVFilterContext *ret;
char *filter = av_strdup(filt); /* copy - don't mangle the input string */
char *name, *args;
name = filter;
if((args = strchr(filter, '='))) {
/* ensure we at least have a name */
if(args == filter)
return NULL;
goto fail;
*args ++ = 0;
}
@ -76,11 +78,15 @@ static AVFilterContext *create_filter_with_args(char *filter)
if(avfilter_init_filter(ret, args)) {
av_log(NULL, AV_LOG_ERROR, "error initializing filter!\n");
avfilter_destroy(ret);
ret = NULL;
goto fail;
}
} else av_log(NULL, AV_LOG_ERROR, "error creating filter!\n");
return ret;
fail:
av_free(filter);
return NULL;
}
int avfilter_graph_load_chain(AVFilterGraph *graph,