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| author | Måns Rullgård <mans@mansr.com> | 2009-08-19 21:59:44 +0000 |
|---|---|---|
| committer | Måns Rullgård <mans@mansr.com> | 2009-08-19 21:59:44 +0000 |
| commit | 90d43b52e101af0c0cfb97a6c767b6f25cc0f61a (patch) | |
| tree | cf896e9f09ecdf99e6d6cc48371c10a4675237c6 /libavcodec | |
| parent | 0314dead4e7c058568e792842405190c06d71da5 (diff) | |
| download | ffmpeg-90d43b52e101af0c0cfb97a6c767b6f25cc0f61a.tar.gz | |
Get rid of large stack array in rd8x8_c()
Originally committed as revision 19671 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavcodec')
| -rw-r--r-- | libavcodec/dsputil.c | 18 |
1 files changed, 9 insertions, 9 deletions
diff --git a/libavcodec/dsputil.c b/libavcodec/dsputil.c index 871d1c7563..8efe9edf19 100644 --- a/libavcodec/dsputil.c +++ b/libavcodec/dsputil.c @@ -3831,9 +3831,11 @@ static int rd8x8_c(/*MpegEncContext*/ void *c, uint8_t *src1, uint8_t *src2, int MpegEncContext * const s= (MpegEncContext *)c; const uint8_t *scantable= s->intra_scantable.permutated; DECLARE_ALIGNED_8 (uint64_t, aligned_temp[sizeof(DCTELEM)*64/8]); - DECLARE_ALIGNED_8 (uint64_t, aligned_bak[stride]); + DECLARE_ALIGNED_8 (uint64_t, aligned_src1[8]); + DECLARE_ALIGNED_8 (uint64_t, aligned_src2[8]); DCTELEM * const temp= (DCTELEM*)aligned_temp; - uint8_t * const bak= (uint8_t*)aligned_bak; + uint8_t * const lsrc1 = (uint8_t*)aligned_src1; + uint8_t * const lsrc2 = (uint8_t*)aligned_src2; int i, last, run, bits, level, distortion, start_i; const int esc_length= s->ac_esc_length; uint8_t * length; @@ -3841,12 +3843,10 @@ static int rd8x8_c(/*MpegEncContext*/ void *c, uint8_t *src1, uint8_t *src2, int assert(h==8); - for(i=0; i<8; i++){ - ((uint32_t*)(bak + i*stride))[0]= ((uint32_t*)(src2 + i*stride))[0]; - ((uint32_t*)(bak + i*stride))[1]= ((uint32_t*)(src2 + i*stride))[1]; - } + copy_block8(lsrc1, src1, 8, stride, 8); + copy_block8(lsrc2, src2, 8, stride, 8); - s->dsp.diff_pixels(temp, src1, src2, stride); + s->dsp.diff_pixels(temp, lsrc1, lsrc2, 8); s->block_last_index[0/*FIXME*/]= last= s->fast_dct_quantize(s, temp, 0/*FIXME*/, s->qscale, &i); @@ -3899,9 +3899,9 @@ static int rd8x8_c(/*MpegEncContext*/ void *c, uint8_t *src1, uint8_t *src2, int s->dct_unquantize_inter(s, temp, 0, s->qscale); } - s->dsp.idct_add(bak, stride, temp); + s->dsp.idct_add(lsrc2, 8, temp); - distortion= s->dsp.sse[1](NULL, bak, src1, stride, 8); + distortion= s->dsp.sse[1](NULL, lsrc2, lsrc1, 8, 8); return distortion + ((bits*s->qscale*s->qscale*109 + 64)>>7); } |