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authorCarl Eugen Hoyos <ceffmpeg@gmail.com>2019-03-15 00:02:48 +0100
committerCarl Eugen Hoyos <ceffmpeg@gmail.com>2019-03-15 01:09:02 +0100
commitdbecf03f692a0a30aa401df90fd3e9a31c0e777d (patch)
tree709979e7e3aa31d7347f6c9864d99fa1374cbe6d
parent85649b6523a69df390956e6739b691e17265e36e (diff)
downloadffmpeg-dbecf03f692a0a30aa401df90fd3e9a31c0e777d.tar.gz
lavc/qtrle: Do not use aligned writes for 24bit frames.
pixel_ptr is 3 and leads to aligned access on odd memory addresses. Fixes crashes on systems that do not allow unaligned access like sparc32.
-rw-r--r--libavcodec/qtrle.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/libavcodec/qtrle.c b/libavcodec/qtrle.c
index a744d7ba68..1cb3eb05bd 100644
--- a/libavcodec/qtrle.c
+++ b/libavcodec/qtrle.c
@@ -325,7 +325,7 @@ static void qtrle_decode_24bpp(QtrleContext *s, int row_ptr, int lines_to_change
CHECK_PIXEL_PTR(rle_code * 3);
while (rle_code--) {
- AV_WN16A(rgb + pixel_ptr, rg);
+ AV_WN16(rgb + pixel_ptr, rg);
rgb[pixel_ptr + 2] = b;
pixel_ptr += 3;
}
@@ -335,13 +335,13 @@ static void qtrle_decode_24bpp(QtrleContext *s, int row_ptr, int lines_to_change
rle_code_half = rle_code / 2;
while (rle_code_half--) { /* copy 2 raw rgb value at the same time */
- AV_WN32A(rgb + pixel_ptr, bytestream2_get_ne32(&s->g)); /* rgbr */
- AV_WN16A(rgb + pixel_ptr + 4, bytestream2_get_ne16(&s->g)); /* rgbr */
+ AV_WN32(rgb + pixel_ptr, bytestream2_get_ne32(&s->g)); /* rgbr */
+ AV_WN16(rgb + pixel_ptr + 4, bytestream2_get_ne16(&s->g)); /* rgbr */
pixel_ptr += 6;
}
if (rle_code % 2 != 0){ /* not even raw value */
- AV_WN16A(rgb + pixel_ptr, bytestream2_get_ne16(&s->g));
+ AV_WN16(rgb + pixel_ptr, bytestream2_get_ne16(&s->g));
rgb[pixel_ptr + 2] = bytestream2_get_byte(&s->g);
pixel_ptr += 3;
}