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Code Issues Releases Activity

avcodec/vlc: Pass VLC_MULTI_ELEM directly not by pointer

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This makes the code more testable as uninitialized fields are 0
and not random values from the last call

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2023-10-22 22:14:47 +02:00
parent 8516609edd
commit a5259f326b
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GPG Key ID: B18E8928B3948D64
1 changed files with 7 additions and 7 deletions
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14
libavcodec/vlc.c
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@ -424,7 +424,7 @@ static void add_level(VLC_MULTI_ELEM *table, const int is16bit,
uint32_t curcode, int curlen,
int curlimit, int curlevel,
const int minlen, const int max,
unsigned* levelcnt, VLC_MULTI_ELEM *info)
unsigned* levelcnt, VLC_MULTI_ELEM info)
{
int max_symbols = VLC_MULTI_MAX_SYMBOLS >> is16bit;
for (int i = num-1; i >= max; i--) {
@ -440,16 +440,16 @@ static void add_level(VLC_MULTI_ELEM *table, const int is16bit,
code = curcode + (buf[t].code >> curlen);
newlimit = curlimit - l;
l += curlen;
if (is16bit) AV_WN16(info->val+2*curlevel, sym);
else info->val[curlevel] = sym&0xFF;
if (is16bit) AV_WN16(info.val+2*curlevel, sym);
else info.val[curlevel] = sym&0xFF;
if (curlevel) { // let's not add single entries
uint32_t val = code >> (32 - numbits);
uint32_t nb = val + (1U << (numbits - l));
info->len = l;
info->num = curlevel+1;
info.len = l;
info.num = curlevel+1;
for (; val < nb; val++)
AV_COPY64(table+val, info);
AV_COPY64(table+val, &info);
levelcnt[curlevel-1]++;
}
@ -503,7 +503,7 @@ static int vlc_multi_gen(VLC_MULTI_ELEM *table, const VLC *single,
}
add_level(table, is16bit, nb_codes, numbits, buf,
0, 0, FFMIN(maxbits, numbits), 0, minbits, max, count, &info);
0, 0, FFMIN(maxbits, numbits), 0, minbits, max, count, info);
av_log(logctx, AV_LOG_DEBUG, "Joint: %d/%d/%d/%d/%d codes min=%ubits max=%u\n",
count[0], count[1], count[2], count[3], count[4], minbits, max);