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lavc/r210enc: Fix undefined behaviour encoding r10k.

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Fixes the following ubsan error:
libavcodec/r210enc.c:69:28: runtime error: left shift of 522 by 22 places cannot be represented in type 'int'

Fixes ticket #7982.
This commit is contained in:
Carl Eugen Hoyos 2019-07-01 13:06:02 +02:00
parent ac457a3bc5
commit 2828f5b0d8
1 changed files with 3 additions and 3 deletions
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libavcodec/r210enc.c
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@ -60,9 +60,9 @@ static int encode_frame(AVCodecContext *avctx, AVPacket *pkt,
uint16_t *srcb = (uint16_t *)srcb_line; uint16_t *srcb = (uint16_t *)srcb_line;
for (j = 0; j < avctx->width; j++) { for (j = 0; j < avctx->width; j++) {
uint32_t pixel; uint32_t pixel;
uint16_t r = *srcr++; unsigned r = *srcr++;
uint16_t g = *srcg++; unsigned g = *srcg++;
uint16_t b = *srcb++; unsigned b = *srcb++;
if (avctx->codec_id == AV_CODEC_ID_R210) if (avctx->codec_id == AV_CODEC_ID_R210)
pixel = (r << 20) | (g << 10) | b; pixel = (r << 20) | (g << 10) | b;
else else