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Code Issues Releases Activity

avcodec/utvideodec: bswap directly without memcpy

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Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2017-06-27 21:47:34 +02:00
parent 676a589c93
commit 5eb4701b7d
1 changed files with 2 additions and 6 deletions
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8
libavcodec/utvideodec.c
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@ -187,11 +187,9 @@ static int decode_plane10(UtvideoContext *c, int plane_no,
goto fail; goto fail;
} }
memcpy(c->slice_bits, src + slice_data_start + c->slices * 4,
slice_size);
memset(c->slice_bits + slice_size, 0, AV_INPUT_BUFFER_PADDING_SIZE); memset(c->slice_bits + slice_size, 0, AV_INPUT_BUFFER_PADDING_SIZE);
c->bdsp.bswap_buf((uint32_t *) c->slice_bits, c->bdsp.bswap_buf((uint32_t *) c->slice_bits,
(uint32_t *) c->slice_bits, (uint32_t *)(src + slice_data_start + c->slices * 4),
(slice_data_end - slice_data_start + 3) >> 2); (slice_data_end - slice_data_start + 3) >> 2);
init_get_bits(&gb, c->slice_bits, slice_size * 8); init_get_bits(&gb, c->slice_bits, slice_size * 8);
@ -293,11 +291,9 @@ static int decode_plane(UtvideoContext *c, int plane_no,
goto fail; goto fail;
} }
memcpy(c->slice_bits, src + slice_data_start + c->slices * 4,
slice_size);
memset(c->slice_bits + slice_size, 0, AV_INPUT_BUFFER_PADDING_SIZE); memset(c->slice_bits + slice_size, 0, AV_INPUT_BUFFER_PADDING_SIZE);
c->bdsp.bswap_buf((uint32_t *) c->slice_bits, c->bdsp.bswap_buf((uint32_t *) c->slice_bits,
(uint32_t *) c->slice_bits, (uint32_t *)(src + slice_data_start + c->slices * 4),
(slice_data_end - slice_data_start + 3) >> 2); (slice_data_end - slice_data_start + 3) >> 2);
init_get_bits(&gb, c->slice_bits, slice_size * 8); init_get_bits(&gb, c->slice_bits, slice_size * 8);