ffmpeg | branch: master | Ramiro Polla <ramiro.po...@gmail.com> | Sun May 18 22:52:08 2025 +0200| [0c1d87d1e61cbb0f0ffa0d95d9e8b77d5bbde70a] | committer: Ramiro Polla
swscale/swscale_unscaled: fix packed30togbra10() for formats with bpc between 9-14 bits Currently, packed30togbra10() always sets the alpha value to 0xFFFF, without taking the bit depth into consideration. This commit restricts the alpha value to the bit depth. > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=0c1d87d1e61cbb0f0ffa0d95d9e8b77d5bbde70a --- libswscale/swscale_unscaled.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/libswscale/swscale_unscaled.c b/libswscale/swscale_unscaled.c index 307e5471a9..8d71a88c23 100644 --- a/libswscale/swscale_unscaled.c +++ b/libswscale/swscale_unscaled.c @@ -818,6 +818,7 @@ static void packed30togbra10(const uint8_t *src, int srcStride, int x, h, i; int dst_alpha = dst[3] != NULL; int scale_high = bpc - 10, scale_low = 10 - scale_high; + uint16_t alpha_val = (1U << bpc) - 1; for (h = 0; h < srcSliceH; h++) { uint32_t *src_line = (uint32_t *)(src + srcStride * h); unsigned component; @@ -834,7 +835,7 @@ static void packed30togbra10(const uint8_t *src, int srcStride, dst[1][x] = av_bswap16(component << scale_high | component >> scale_low); component = p & 0x3FF; dst[2][x] = av_bswap16(component << scale_high | component >> scale_low); - dst[3][x] = 0xFFFF; + dst[3][x] = av_bswap16(alpha_val); src_line++; } } else { @@ -860,7 +861,7 @@ static void packed30togbra10(const uint8_t *src, int srcStride, dst[1][x] = component << scale_high | component >> scale_low; component = p & 0x3FF; dst[2][x] = component << scale_high | component >> scale_low; - dst[3][x] = 0xFFFF; + dst[3][x] = alpha_val; src_line++; } } else { _______________________________________________ ffmpeg-cvslog mailing list ffmpeg-cvslog@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog To unsubscribe, visit link above, or email ffmpeg-cvslog-requ...@ffmpeg.org with subject "unsubscribe".
