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author | Andreas Rheinhardt <andreas.rheinhardt@outlook.com> | 2021-11-09 22:21:37 +0100 |
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committer | Andreas Rheinhardt <andreas.rheinhardt@outlook.com> | 2021-11-18 04:53:07 +0100 |
commit | 96fe44e2e8e4c77e66cbb0834d340719741e964c (patch) | |
tree | c89e0a3abe7673e719911e293d095e3f586cb0fd | |
parent | 7596b6530d5f00ea0510b5c698714c76369811e7 (diff) |
avformat/hlsenc: Only write something if there is something to write
This is especially important in case avio_write() would be switched
to an unsigned type like size_t, then a potential error from avio_read()
(with negative return value) would no longer be handled gracefully by
avio_write().
Reviewed-by: Steven Liu <lq@chinaffmpeg.org>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
-rw-r--r-- | libavformat/hlsenc.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavformat/hlsenc.c b/libavformat/hlsenc.c index 557cf1bee3..cfd0c036d1 100644 --- a/libavformat/hlsenc.c +++ b/libavformat/hlsenc.c @@ -2383,8 +2383,8 @@ static int64_t append_single_file(AVFormatContext *s, VariantStream *vs) do { read_byte = avio_read(vs->out, buf, BUFSIZE); - avio_write(vs->out_single_file, buf, read_byte); if (read_byte > 0) { + avio_write(vs->out_single_file, buf, read_byte); total_size += read_byte; ret = total_size; } |