ffmpeg | branch: master | Anton Khirnov <an...@khirnov.net> | Thu Nov 25
11:06:54 2021 +0100| [007819a5bc0d3c01c0de26d9e1c6f909877e7c45] | committer:
Anton Khirnov
lavd/jack: increase buffer size for snprintf()
Maximum output size with a 32-bit int is 17 bytes, or 26 with a 64-bit
int.
Silences the following gcc 10 warning:
src/libavdevice/jack.c: In function ‘audio_read_header’:
src/libavdevice/jack.c:171:45: warning: ‘snprintf’ output may be truncated
before the last format character [-Wformat-truncation=]
171 | snprintf(str, sizeof(str), "input_%d", i + 1);
| ^
src/libavdevice/jack.c:171:9: note: ‘snprintf’ output between 8 and 17 bytes
into a destination of size 16
171 | snprintf(str, sizeof(str), "input_%d", i + 1);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=007819a5bc0d3c01c0de26d9e1c6f909877e7c45
---
libavdevice/jack.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/libavdevice/jack.c b/libavdevice/jack.c
index 31534134f3..0d5465e407 100644
--- a/libavdevice/jack.c
+++ b/libavdevice/jack.c
@@ -167,7 +167,7 @@ static int start_jack(AVFormatContext *context)
/* Register JACK ports */
for (i = 0; i < self->nports; i++) {
- char str[16];
+ char str[32];
snprintf(str, sizeof(str), "input_%d", i + 1);
self->ports[i] = jack_port_register(self->client, str,
JACK_DEFAULT_AUDIO_TYPE,
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