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webmdashenc: Fix memory leak 

Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
This commit is contained in:
Derek Buitenhuis 2017-07-14 15:32:42 +01:00
parent ba4beaf614
commit a27c412795
1 changed files with 30 additions and 8 deletions
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38
libavformat/webmdashenc.c
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@ -288,33 +288,55 @@ static int parse_filename(char *filename, char **representation_id,
char *period_pos = NULL;
char *temp_pos = NULL;
char *filename_str = av_strdup(filename);
if (!filename_str) return AVERROR(ENOMEM);
int ret = 0;
if (!filename_str) {
ret = AVERROR(ENOMEM);
goto end;
}
temp_pos = av_stristr(filename_str, "_");
while (temp_pos) {
underscore_pos = temp_pos + 1;
temp_pos = av_stristr(temp_pos + 1, "_");
}
if (!underscore_pos) return AVERROR_INVALIDDATA;
if (!underscore_pos) {
ret = AVERROR_INVALIDDATA;
goto end;
}
period_pos = av_stristr(underscore_pos, ".");
if (!period_pos) return AVERROR_INVALIDDATA;
if (!period_pos) {
ret = AVERROR_INVALIDDATA;
goto end;
}
*(underscore_pos - 1) = 0;
if (representation_id) {
*representation_id = av_malloc(period_pos - underscore_pos + 1);
if (!(*representation_id)) return AVERROR(ENOMEM);
if (!(*representation_id)) {
ret = AVERROR(ENOMEM);
goto end;
}
av_strlcpy(*representation_id, underscore_pos, period_pos - underscore_pos + 1);
}
if (initialization_pattern) {
*initialization_pattern = av_asprintf("%s_$RepresentationID$.hdr",
filename_str);
if (!(*initialization_pattern)) return AVERROR(ENOMEM);
if (!(*initialization_pattern)) {
ret = AVERROR(ENOMEM);
goto end;
}
}
if (media_pattern) {
*media_pattern = av_asprintf("%s_$RepresentationID$_$Number$.chk",
filename_str);
if (!(*media_pattern)) return AVERROR(ENOMEM);
if (!(*media_pattern)) {
ret = AVERROR(ENOMEM);
goto end;
}
}
av_free(filename_str);
return 0;
end:
av_freep(&filename_str);
return ret;
}
/*