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lavf/segment: add escaping for filename field of the CSV list file

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CSV escaping code is borrowed from ffprobe.c.
This commit is contained in:
Stefano Sabatini 2012-09-01 16:12:29 +02:00
parent 299489714a
commit d815763548
2 changed files with 28 additions and 3 deletions
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27
libavformat/segment.c
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@ -67,6 +67,30 @@ typedef struct {
double start_time, end_time;
} SegmentContext;
static void print_csv_escaped_str(AVIOContext *ctx, const char *str)
{
const char *p;
int quote = 0;
/* check if input needs quoting */
for (p = str; *p; p++)
if (strchr("\",\n\r", *p)) {
quote = 1;
break;
}
if (quote)
avio_w8(ctx, '"');
for (p = str; *p; p++) {
if (*p == '"')
avio_w8(ctx, '"');
avio_w8(ctx, *p);
}
if (quote)
avio_w8(ctx, '"');
}
static int segment_start(AVFormatContext *s)
{
SegmentContext *seg = s->priv_data;
@ -169,7 +193,8 @@ static int segment_end(AVFormatContext *s)
if (seg->list_type == LIST_TYPE_FLAT) {
avio_printf(seg->list_pb, "%s\n", oc->filename);
} else if (seg->list_type == LIST_TYPE_EXT) {
avio_printf(seg->list_pb, "%s,%f,%f\n", oc->filename, seg->start_time, seg->end_time);
print_csv_escaped_str(seg->list_pb, oc->filename);
avio_printf(seg->list_pb, ",%f,%f\n", seg->start_time, seg->end_time);
} else if (seg->list_type == LIST_TYPE_M3U8) {
avio_printf(seg->list_pb, "#EXTINF:%f,\n%s\n",
seg->end_time - seg->start_time, oc->filename);