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author | Michael Niedermayer <michaelni@gmx.at> | 2011-12-13 23:21:37 +0100 |
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committer | Michael Niedermayer <michaelni@gmx.at> | 2011-12-13 23:21:37 +0100 |
commit | 3ba0bfe71fb18e955ca0110e5a65105d84932fbc (patch) | |
tree | b308d41d170483c23c31c87d8dcb19fc169e2eb6 /libavcodec/rv34dsp.c | |
parent | 36be045ed7942e07742c3cf3d3012b1d2a9ec344 (diff) | |
parent | a99273ebf328658c183c2d267f1c2b8bfac58bb3 (diff) | |
download | ffmpeg-3ba0bfe71fb18e955ca0110e5a65105d84932fbc.tar.gz |
Merge remote-tracking branch 'qatar/master'
* qatar/master:
ulti: Fix invalid reads
lavf: dealloc private options in av_write_trailer
yadif: support 10bit YUV
vc1: mark with ER_MB_ERROR bits overconsumption
lavc: introduce ER_MB_END and ER_MB_ERROR
error_resilience: use the ER_ namespace
build: move inclusion of subdir.mak to main subdir loop
rv34: NEON optimised 4x4 dequant
rv34: move 4x4 dequant to RV34DSPContext
aacdec: Use intfloat.h rather than local punning union.
Conflicts:
libavcodec/h264.c
libavcodec/vc1dec.c
libavfilter/vf_yadif.c
libavformat/Makefile
Merged-by: Michael Niedermayer <michaelni@gmx.at>
Diffstat (limited to 'libavcodec/rv34dsp.c')
-rw-r--r-- | libavcodec/rv34dsp.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/libavcodec/rv34dsp.c b/libavcodec/rv34dsp.c index 1f4cea8544..974bf9ec16 100644 --- a/libavcodec/rv34dsp.c +++ b/libavcodec/rv34dsp.c @@ -100,10 +100,26 @@ static void rv34_inv_transform_noround_c(DCTELEM *block){ /** @} */ // transform +/** + * Dequantize ordinary 4x4 block. + */ +void ff_rv34_dequant4x4_neon(DCTELEM *block, int Qdc, int Q); +static void rv34_dequant4x4_c(DCTELEM *block, int Qdc, int Q) +{ + int i, j; + + block[0] = (block[0] * Qdc + 8) >> 4; + for (i = 0; i < 4; i++) + for (j = !i; j < 4; j++) + block[j + i*8] = (block[j + i*8] * Q + 8) >> 4; +} + av_cold void ff_rv34dsp_init(RV34DSPContext *c, DSPContext* dsp) { c->rv34_inv_transform_tab[0] = rv34_inv_transform_c; c->rv34_inv_transform_tab[1] = rv34_inv_transform_noround_c; + c->rv34_dequant4x4 = rv34_dequant4x4_c; + if (HAVE_NEON) ff_rv34dsp_init_neon(c, dsp); } |