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Better error messages 

Commited in SoC by Vitor Sessak on 2008-04-10 18:35:09

Originally committed as revision 13304 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Vitor Sessak 2008-05-24 20:39:42 +00:00
parent 325cb1efb2
commit 22260824c0
1 changed files with 19 additions and 3 deletions
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22
libavfilter/graphparser.c
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@ -139,20 +139,27 @@ static char *consume_string(const char **buf)
*/
static void parse_link_name(const char **buf, char **name)
{
const char *start = *buf;
(*buf)++;
*name = consume_string(buf);
if(!*name[0])
if(!*name[0]) {
av_log(&log_ctx, AV_LOG_ERROR,
"Bad (empty?) label found in the following: \"%s\".\n", start);
goto fail;
}
if(*(*buf)++ != ']')
if(*(*buf)++ != ']') {
av_log(&log_ctx, AV_LOG_ERROR,
"Mismatched '[' found in the following: \"%s\".\n", start);
goto fail;
}
return;
fail:
av_freep(name);
av_log(&log_ctx, AV_LOG_ERROR, "Could not parse link name!\n");
}
/**
@ -212,6 +219,12 @@ static int parse_inouts(const char **buf, AVFilterInOut **inout, int pad,
while (**buf == '[') {
AVFilterInOut *inoutn = av_malloc(sizeof(AVFilterInOut));
parse_link_name(buf, &inoutn->name);
if (!inoutn->name) {
av_free(inoutn);
return -1;
}
inoutn->type = type;
inoutn->filter = filter;
inoutn->pad_idx = pad++;
@ -263,6 +276,9 @@ int avfilter_parse_graph(AVFilterGraph *graph, const char *filters,
pad = parse_inouts(&inouts, &inout, chr == ',', LinkTypeIn, filter);
if(pad < 0)
goto fail;
// If the first filter has an input and none was given, it is
// implicitly the input of the whole graph.
if(pad == 0 && filter->input_count == 1) {