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avcodec/idctdsp: Clear idct/idct_add for studio profile

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This does not leave them "as before" which may be a value from a previous profile

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 8c50d0cccfe4c9f25a8494f76da55dcdc2275058)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2018-05-28 22:29:57 +02:00
parent 2e7830e5ff
commit 07767c704b
1 changed files with 4 additions and 2 deletions
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6
libavcodec/idctdsp.c
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@ -258,9 +258,11 @@ av_cold void ff_idctdsp_init(IDCTDSPContext *c, AVCodecContext *avctx)
if (avctx->bits_per_raw_sample == 10 || avctx->bits_per_raw_sample == 9) {
/* 10-bit MPEG-4 Simple Studio Profile requires a higher precision IDCT
However, it only uses idct_put */
if (c->mpeg4_studio_profile)
if (c->mpeg4_studio_profile) {
c->idct_put = ff_simple_idct_put_int32_10bit;
else {
c->idct_add = NULL;
c->idct = NULL;
} else {
c->idct_put = ff_simple_idct_put_int16_10bit;
c->idct_add = ff_simple_idct_add_int16_10bit;
c->idct = ff_simple_idct_int16_10bit;