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| author | IndecisiveTurtle <geoster3d@gmail.com> | 2024-11-27 21:18:05 +0200 |
|---|---|---|
| committer | Lynne <dev@lynne.ee> | 2024-11-28 09:31:43 +0900 |
| commit | f794ed48c09cfb31611cb4fe4bf7df32339f12eb (patch) | |
| tree | 3988f200f4c757eb16ac8e893a6c0d30ab43667b /libavcodec/vulkan | |
| parent | 4e1a91112d6732230f43777aed8fb7e9250036b4 (diff) | |
| download | ffmpeg-f794ed48c09cfb31611cb4fe4bf7df32339f12eb.tar.gz | |
vulkan/common: Fix off-by-one error in flush_put_bits
If caller wrote a divisible by eight number of bits it would write an extra byte.
Also increment by to_write instead of BUF_BYTES which overly pads the bitstream.
Diffstat (limited to 'libavcodec/vulkan')
| -rw-r--r-- | libavcodec/vulkan/common.comp | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/libavcodec/vulkan/common.comp b/libavcodec/vulkan/common.comp index a28701584e..17c18934e6 100644 --- a/libavcodec/vulkan/common.comp +++ b/libavcodec/vulkan/common.comp @@ -141,12 +141,12 @@ uint32_t flush_put_bits(inout PutBitContext pb) pb.bit_buf <<= pb.bit_left; if (pb.bit_left < BUF_BITS) { - uint to_write = ((BUF_BITS - pb.bit_left) >> 3) + 1; + uint to_write = ((BUF_BITS - pb.bit_left - 1) >> 3) + 1; u8buf bs = u8buf(pb.buf); for (int i = 0; i < to_write; i++) bs[i].v = BYTE_EXTRACT(pb.bit_buf, BUF_BYTES - uint8_t(1) - i); - pb.buf = uint64_t(bs) + BUF_BYTES; + pb.buf = uint64_t(bs) + to_write; } pb.bit_left = BUF_BITS; |