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avcodec/mjpegenc: Constify parent ctx in encode_block()

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Said parent is shared between all slice contexts and encode_block()
can be run concurrently by slice threads, so the parent context
must not be (and is not) modified. So constify the pointers.

Reviewed-by: Ramiro Polla <ramiro.polla@gmail.com>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
This commit is contained in:
Andreas Rheinhardt
2025-03-04 18:07:23 +01:00
parent 60cae5019a
commit 8940a6153f
1 changed files with 3 additions and 3 deletions
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6
libavcodec/mjpegenc.c
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@@ -480,9 +480,9 @@ static void encode_block(MpegEncContext *s, int16_t *block, int n)
{ {
int mant, nbits, code, i, j; int mant, nbits, code, i, j;
int component, dc, run, last_index, val; int component, dc, run, last_index, val;
MJpegContext *m = s->mjpeg_ctx; const MJpegContext *const m = s->mjpeg_ctx;
uint8_t *huff_size_ac; const uint16_t *huff_code_ac;
uint16_t *huff_code_ac; const uint8_t *huff_size_ac;
/* DC coef */ /* DC coef */
component = (n <= 3 ? 0 : (n&1) + 1); component = (n <= 3 ? 0 : (n&1) + 1);