When movenc is used by other segmenting muxers such as dashenc, url field is
always empty.
In such cases it is better to not write sidx, instead of throwing errors.
---
libavformat/movenc.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/libavformat/movenc.c b/libavformat/movenc.c
index 6dab5193b0..150a505a4a 100644
--- a/libavformat/movenc.c
+++ b/libavformat/movenc.c
@@ -6706,6 +6706,9 @@ static int mov_write_trailer(AVFormatContext *s)
mov->tracks[i].data_offset = 0;
if (mov->flags & FF_MOV_FLAG_GLOBAL_SIDX) {
int64_t end;
+ // If url is an empty string("") don't write sidx atom.
+ if (s->url[0] == '\0')
+ return res;
av_log(s, AV_LOG_INFO, "Starting second pass: inserting sidx
atoms\n");
res = shift_data(s);
if (res < 0)
--
2.17.1 (Apple Git-112)
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