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lavf/matroskadec: Simplify string length calculation.

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FFmpeg relies on sizeof(char) == 1.
This commit is contained in:
Carl Eugen Hoyos 2018-09-03 14:18:02 +02:00
parent 10f468156c
commit 6871c17173
1 changed files with 3 additions and 3 deletions
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6
libavformat/matroskadec.c
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@ -3931,11 +3931,11 @@ static int webm_dash_manifest_cues(AVFormatContext *s, int64_t init_range)
// store cue point timestamps as a comma separated list for checking subsegment alignment in
// the muxer. assumes that each timestamp cannot be more than 20 characters long.
buf = av_malloc_array(s->streams[0]->nb_index_entries, 20 * sizeof(char));
buf = av_malloc_array(s->streams[0]->nb_index_entries, 20);
if (!buf) return -1;
strcpy(buf, "");
for (i = 0; i < s->streams[0]->nb_index_entries; i++) {
int ret = snprintf(buf + end, 20 * sizeof(char),
int ret = snprintf(buf + end, 20,
"%" PRId64, s->streams[0]->index_entries[i].timestamp);
if (ret <= 0 || (ret == 20 && i == s->streams[0]->nb_index_entries - 1)) {
av_log(s, AV_LOG_ERROR, "timestamp too long.\n");
@ -3944,7 +3944,7 @@ static int webm_dash_manifest_cues(AVFormatContext *s, int64_t init_range)
}
end += ret;
if (i != s->streams[0]->nb_index_entries - 1) {
strncat(buf, ",", sizeof(char));
strncat(buf, ",", 1);
end++;
}
}