From: Limin Wang <lance.lmw...@gmail.com>
Signed-off-by: Limin Wang <lance.lmw...@gmail.com>
---
libavfilter/f_metadata.c | 17 ++++++++++++-----
1 file changed, 12 insertions(+), 5 deletions(-)
diff --git a/libavfilter/f_metadata.c b/libavfilter/f_metadata.c
index 598257b..79515b7 100644
--- a/libavfilter/f_metadata.c
+++ b/libavfilter/f_metadata.c
@@ -31,6 +31,7 @@
#include "libavutil/internal.h"
#include "libavutil/opt.h"
#include "libavutil/timestamp.h"
+#include "libavutil/bprint.h"
#include "libavformat/avio.h"
#include "avfilter.h"
#include "audio.h"
@@ -192,14 +193,20 @@ static void print_file(AVFilterContext *ctx, const char
*msg, ...)
{
MetadataContext *s = ctx->priv;
va_list argument_list;
+ AVBPrint buf;
+ av_bprint_init(&buf, 0, AV_BPRINT_SIZE_UNLIMITED);
va_start(argument_list, msg);
- if (msg) {
- char buf[128];
- vsnprintf(buf, sizeof(buf), msg, argument_list);
- avio_write(s->avio_context, buf, av_strnlen(buf, sizeof(buf)));
- }
+ av_vbprintf(&buf, msg, argument_list);
va_end(argument_list);
+
+ if (!av_bprint_is_complete(&buf)) {
+ av_bprint_finalize(&buf, NULL);
+ av_log(ctx, AV_LOG_ERROR, "No memory for buf\n");
+ return;
+ }
+ avio_write(s->avio_context, buf.str, buf.len);
+ av_bprint_finalize(&buf, NULL);
}
static av_cold int init(AVFilterContext *ctx)
--
1.8.3.1
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