ffmpeg | branch: master | Andreas Rheinhardt <[email protected]> | Thu Oct 20 04:26:00 2022 +0200| [ee0e03fe772a244e5c3633b8024ae3b3485fbb54] | committer: Andreas Rheinhardt
avcodec/idctdsp: Add function to apply permutation to array It is the part of ff_init_scantable() that is used by all users of said function. Reviewed-by: Peter Ross <[email protected]> Signed-off-by: Andreas Rheinhardt <[email protected]> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=ee0e03fe772a244e5c3633b8024ae3b3485fbb54 --- libavcodec/idctdsp.c | 9 +++++++++ libavcodec/idctdsp.h | 2 ++ 2 files changed, 11 insertions(+) diff --git a/libavcodec/idctdsp.c b/libavcodec/idctdsp.c index 4ee9c3aa74..50156930ed 100644 --- a/libavcodec/idctdsp.c +++ b/libavcodec/idctdsp.c @@ -27,6 +27,15 @@ #include "simple_idct.h" #include "xvididct.h" +av_cold void ff_permute_scantable(uint8_t dst[64], const uint8_t src[64], + const uint8_t permutation[64]) +{ + for (int i = 0; i < 64; i++) { + int j = src[i]; + dst[i] = permutation[j]; + } +} + av_cold void ff_init_scantable(const uint8_t *permutation, ScanTable *st, const uint8_t *src_scantable) { diff --git a/libavcodec/idctdsp.h b/libavcodec/idctdsp.h index 2bd9820f72..b286bc231c 100644 --- a/libavcodec/idctdsp.h +++ b/libavcodec/idctdsp.h @@ -43,6 +43,8 @@ enum idct_permutation_type { FF_IDCT_PERM_SSE2, }; +void ff_permute_scantable(uint8_t dst[64], const uint8_t src[64], + const uint8_t permutation[64]); void ff_init_scantable(const uint8_t *permutation, ScanTable *st, const uint8_t *src_scantable); void ff_init_scantable_permutation(uint8_t *idct_permutation, _______________________________________________ ffmpeg-cvslog mailing list [email protected] https://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog To unsubscribe, visit link above, or email [email protected] with subject "unsubscribe".
