ffmpeg | branch: release/4.2 | James Almer <jamr...@gmail.com> | Wed Dec 11
18:54:38 2019 -0300| [d3fef1a3bd9fc9e408a4b5b366a19249aea0c3f2] | committer:
James Almer
avcodec/cbs_av1: fix array size for ar_coeffs_cb_plus_128 and
ar_coeffs_cr_plus_128
Taking into account the code
fb(2, ar_coeff_lag);
num_pos_luma = 2 * current->ar_coeff_lag * (current->ar_coeff_lag + 1);
if (current->num_y_points)
num_pos_chroma = num_pos_luma + 1;
else
num_pos_chroma = num_pos_luma;
Max value for ar_coeff_lag is 3 (two bits), for num_pos_luma 24, and for
num_pos_chroma 25.
Both ar_coeffs_cb_plus_128 and ar_coeffs_cr_plus_128 may have up to
num_pos_chroma values.
Reviewed-by: Ronald S. Bultje <rsbul...@gmail.com>
Signed-off-by: James Almer <jamr...@gmail.com>
(cherry picked from commit a23dd33606d5a711fd632383d81a1d6c60082e0f)
> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=d3fef1a3bd9fc9e408a4b5b366a19249aea0c3f2
---
libavcodec/cbs_av1.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/libavcodec/cbs_av1.h b/libavcodec/cbs_av1.h
index 675ed28f60..dee06010db 100644
--- a/libavcodec/cbs_av1.h
+++ b/libavcodec/cbs_av1.h
@@ -268,8 +268,8 @@ typedef struct AV1RawFrameHeader {
uint8_t grain_scaling_minus_8;
uint8_t ar_coeff_lag;
uint8_t ar_coeffs_y_plus_128[24];
- uint8_t ar_coeffs_cb_plus_128[24];
- uint8_t ar_coeffs_cr_plus_128[24];
+ uint8_t ar_coeffs_cb_plus_128[25];
+ uint8_t ar_coeffs_cr_plus_128[25];
uint8_t ar_coeff_shift_minus_6;
uint8_t grain_scale_shift;
uint8_t cb_mult;
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