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fftools/avtextformat: Re-use BPrint in loop

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Instead of initializing a new BPrint in case of UTF decode error,
re-use the same BPrint struct and just clear it
for each iteration.

Reviewed-by: Stefano Sabatini <stefasab@gmail.com>
Signed-off-by: softworkz <softworkz@hotmail.com>
This commit is contained in:
softworkz
2025-04-24 02:32:13 +02:00
parent d225928703
commit 4ff90f05c7
1 changed files with 14 additions and 9 deletions
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23
fftools/textformat/avtextformat.c
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@ -311,24 +311,28 @@ void avtext_print_integer(AVTextFormatContext *tctx, const char *key, int64_t va
static inline int validate_string(AVTextFormatContext *tctx, char **dstp, const char *src)
{
const uint8_t *p, *endp;
const uint8_t *p, *endp, *srcp = (const uint8_t *)src;
AVBPrint dstbuf;
AVBPrint invalid_seq;
int invalid_chars_nb = 0, ret = 0;
*dstp = NULL;
av_bprint_init(&dstbuf, 0, AV_BPRINT_SIZE_UNLIMITED);
av_bprint_init(&invalid_seq, 0, AV_BPRINT_SIZE_UNLIMITED);
endp = src + strlen(src);
for (p = src; *p;) {
uint32_t code;
endp = srcp + strlen(src);
for (p = srcp; *p;) {
int32_t code;
int invalid = 0;
const uint8_t *p0 = p;
if (av_utf8_decode(&code, &p, endp, tctx->string_validation_utf8_flags) < 0) {
AVBPrint bp;
av_bprint_init(&bp, 0, AV_BPRINT_SIZE_AUTOMATIC);
bprint_bytes(&bp, p0, p-p0);
av_log(tctx, AV_LOG_DEBUG,
"Invalid UTF-8 sequence %s found in string '%s'\n", bp.str, src);
av_bprint_clear(&invalid_seq);
bprint_bytes(&invalid_seq, p0, p - p0);
av_log(tctx, AV_LOG_DEBUG, "Invalid UTF-8 sequence '%s' found in string '%s'\n", invalid_seq.str, src);
invalid = 1;
}
@ -358,6 +362,7 @@ static inline int validate_string(AVTextFormatContext *tctx, char **dstp, const
end:
av_bprint_finalize(&dstbuf, dstp);
av_bprint_finalize(&invalid_seq, NULL);
return ret;
}