ffmpeg | branch: master | Niklas Haas <g...@haasn.dev> | Wed Sep 27 15:39:00 2023 +0200| [616e9d24137d34fba02ebd159d5a7186aaf53eca] | committer: Niklas Haas
lavc/h274: correct grain DB indices The spec specified indices in the order [x][y], but our code follows the traditional C convention of [y][x]. This was not correctly account for when calculating the base index of the grain database access. > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=616e9d24137d34fba02ebd159d5a7186aaf53eca --- libavcodec/h274.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/libavcodec/h274.c b/libavcodec/h274.c index fc111cdb50..2388826d54 100644 --- a/libavcodec/h274.c +++ b/libavcodec/h274.c @@ -259,11 +259,11 @@ int ff_h274_apply_film_grain(AVFrame *out_frame, const AVFrame *in_frame, // only advanced in 16x16 blocks, so use a nested loop for (int y = 0; y < height; y += 16) { for (int x = 0; x < width; x += 16) { - uint16_t y_offset = (seed >> 16) % 52; - uint16_t x_offset = (seed & 0xFFFF) % 56; + uint16_t x_offset = (seed >> 16) % 52; + uint16_t y_offset = (seed & 0xFFFF) % 56; const int invert = (seed & 0x1); - y_offset &= 0xFFFC; - x_offset &= 0xFFF8; + x_offset &= 0xFFFC; + y_offset &= 0xFFF8; prng_shift(&seed); for (int yy = 0; yy < 16 && y+yy < height; yy += 8) { _______________________________________________ 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".
