diff options
| -rw-r--r-- | libavcodec/dnxhdenc.c | 16 |
1 files changed, 12 insertions, 4 deletions
diff --git a/libavcodec/dnxhdenc.c b/libavcodec/dnxhdenc.c index 04284e3e3a..97013f6a94 100644 --- a/libavcodec/dnxhdenc.c +++ b/libavcodec/dnxhdenc.c @@ -71,13 +71,21 @@ static void dnxhd_8bit_get_pixels_8x4_sym(DCTELEM *restrict block, const uint8_t static av_always_inline void dnxhd_10bit_get_pixels_8x4_sym(DCTELEM *restrict block, const uint8_t *pixels, int line_size) { int i; - - block += 32; + const uint16_t* pixels16 = pixels; + line_size >>= 1; for (i = 0; i < 4; i++) { - memcpy(block + i * 8, pixels + i * line_size, 8 * sizeof(*block)); - memcpy(block - (i+1) * 8, pixels + i * line_size, 8 * sizeof(*block)); + block[0] = pixels16[0]; block[1] = pixels16[1]; + block[2] = pixels16[2]; block[3] = pixels16[3]; + block[4] = pixels16[4]; block[5] = pixels16[5]; + block[6] = pixels16[6]; block[7] = pixels16[7]; + pixels16 += line_size; + block += 8; } + memcpy(block, block - 8, sizeof(*block) * 8); + memcpy(block + 8, block - 16, sizeof(*block) * 8); + memcpy(block + 16, block - 24, sizeof(*block) * 8); + memcpy(block + 24, block - 32, sizeof(*block) * 8); } static int dnxhd_10bit_dct_quantize(MpegEncContext *ctx, DCTELEM *block, |