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avformat/mxfdec: Offload allocating string to av_dict_set()

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Reviewed-by: Tomas Härdin <tjoppen@acc.umu.se>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
This commit is contained in:
Andreas Rheinhardt 2022-06-14 01:12:14 +02:00
parent 6b5e3590c7
commit 9ff0fbbc0a
1 changed files with 8 additions and 14 deletions

22
libavformat/mxfdec.c
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@ -2118,16 +2118,12 @@ static int mxf_is_intra_only(MXFDescriptor *descriptor)
&descriptor->essence_codec_ul)->id != AV_CODEC_ID_NONE;
}
static int mxf_umid_to_str(UID ul, UID uid, char **str)
static void mxf_umid_to_str(const UID ul, const UID uid,
char str[2 + sizeof(UID) * 4 + 1])
{
char *p;
p = *str = av_mallocz(sizeof(UID) * 4 + 2 + 1);
if (!p)
return AVERROR(ENOMEM);
snprintf(p, 2 + 1, "0x");
ff_data_to_hex(p + 2, ul, sizeof(UID), 0);
ff_data_to_hex(p + 2 + 2 * sizeof(UID), uid, sizeof(UID), 0);
return 0;
snprintf(str, 2 + sizeof(UID) * 4 + 1, "0x");
ff_data_to_hex(str + 2, ul, sizeof(UID), 0);
ff_data_to_hex(str + 2 + 2 * sizeof(UID), uid, sizeof(UID), 0);
}
static int mxf_version_to_str(uint16_t major, uint16_t minor, uint16_t tertiary,
@ -2141,13 +2137,11 @@ static int mxf_version_to_str(uint16_t major, uint16_t minor, uint16_t tertiary,
static int mxf_add_umid_metadata(AVDictionary **pm, const char *key, MXFPackage* package)
{
char *str;
int ret;
char str[2 + 4 * sizeof(UID) + 1];
if (!package)
return 0;
if ((ret = mxf_umid_to_str(package->package_ul, package->package_uid, &str)) < 0)
return ret;
av_dict_set(pm, key, str, AV_DICT_DONT_STRDUP_VAL);
mxf_umid_to_str(package->package_ul, package->package_uid, str);
av_dict_set(pm, key, str, 0);
return 0;
}