diff options
Diffstat (limited to 'libswscale/utils.c')
| -rw-r--r-- | libswscale/utils.c | 27 |
1 files changed, 20 insertions, 7 deletions
diff --git a/libswscale/utils.c b/libswscale/utils.c index bff9f4d..62839ee 100644 --- a/libswscale/utils.c +++ b/libswscale/utils.c @@ -46,6 +46,7 @@ #include "libavutil/bswap.h" #include "libavutil/opt.h" #include "libavutil/pixdesc.h" +#include "libavutil/avassert.h" unsigned swscale_version(void) { @@ -777,7 +778,7 @@ SwsContext *sws_alloc_context(void) int sws_init_context(SwsContext *c, SwsFilter *srcFilter, SwsFilter *dstFilter) { - int i; + int i, j; int usesVFilter, usesHFilter; int unscaled; SwsFilter dummyFilter= {NULL, NULL, NULL, NULL}; @@ -785,7 +786,7 @@ int sws_init_context(SwsContext *c, SwsFilter *srcFilter, SwsFilter *dstFilter) int srcH= c->srcH; int dstW= c->dstW; int dstH= c->dstH; - int dst_stride = FFALIGN(dstW * sizeof(int16_t)+66, 16), dst_stride_px = dst_stride >> 1; + int dst_stride = FFALIGN(dstW * sizeof(int16_t)+66, 16); int flags, cpu_flags; enum PixelFormat srcFormat= c->srcFormat; enum PixelFormat dstFormat= c->dstFormat; @@ -882,8 +883,14 @@ int sws_init_context(SwsContext *c, SwsFilter *srcFilter, SwsFilter *dstFilter) } } + c->scalingBpp = FFMAX(av_pix_fmt_descriptors[srcFormat].comp[0].depth_minus1, + av_pix_fmt_descriptors[dstFormat].comp[0].depth_minus1) >= 15 ? 16 : 8; + + if (c->scalingBpp == 16) + dst_stride <<= 1; + av_assert0(c->scalingBpp<=16); FF_ALLOC_OR_GOTO(c, c->formatConvBuffer, FFALIGN(srcW*2+78, 16) * 2, fail); - if (HAVE_MMX2 && cpu_flags & AV_CPU_FLAG_MMX2) { + if (HAVE_MMX2 && cpu_flags & AV_CPU_FLAG_MMX2 && c->scalingBpp == 8) { c->canMMX2BeUsed= (dstW >=srcW && (dstW&31)==0 && (srcW&15)==0) ? 1 : 0; if (!c->canMMX2BeUsed && dstW >=srcW && (srcW&15)==0 && (flags&SWS_FAST_BILINEAR)) { if (flags&SWS_PRINT_INFO) @@ -909,7 +916,7 @@ int sws_init_context(SwsContext *c, SwsFilter *srcFilter, SwsFilter *dstFilter) c->chrXInc+= 20; } //we don't use the x86 asm scaler if MMX is available - else if (HAVE_MMX && cpu_flags & AV_CPU_FLAG_MMX) { + else if (HAVE_MMX && cpu_flags & AV_CPU_FLAG_MMX && c->scalingBpp == 8) { c->lumXInc = ((srcW-2)<<16)/(dstW-2) - 20; c->chrXInc = ((c->chrSrcW-2)<<16)/(c->chrDstW-2) - 20; } @@ -1040,12 +1047,12 @@ int sws_init_context(SwsContext *c, SwsFilter *srcFilter, SwsFilter *dstFilter) FF_ALLOCZ_OR_GOTO(c, c->lumPixBuf[i+c->vLumBufSize], dst_stride+1, fail); c->lumPixBuf[i] = c->lumPixBuf[i+c->vLumBufSize]; } - c->uv_off = dst_stride_px; + c->uv_off = dst_stride>>1; c->uv_offx2 = dst_stride; for (i=0; i<c->vChrBufSize; i++) { FF_ALLOC_OR_GOTO(c, c->chrUPixBuf[i+c->vChrBufSize], dst_stride*2+1, fail); c->chrUPixBuf[i] = c->chrUPixBuf[i+c->vChrBufSize]; - c->chrVPixBuf[i] = c->chrVPixBuf[i+c->vChrBufSize] = c->chrUPixBuf[i] + dst_stride_px; + c->chrVPixBuf[i] = c->chrVPixBuf[i+c->vChrBufSize] = c->chrUPixBuf[i] + (dst_stride >> 1); } if (CONFIG_SWSCALE_ALPHA && c->alpPixBuf) for (i=0; i<c->vLumBufSize; i++) { @@ -1055,7 +1062,13 @@ int sws_init_context(SwsContext *c, SwsFilter *srcFilter, SwsFilter *dstFilter) //try to avoid drawing green stuff between the right end and the stride end for (i=0; i<c->vChrBufSize; i++) - memset(c->chrUPixBuf[i], 64, dst_stride*2+1); + if(av_pix_fmt_descriptors[c->dstFormat].comp[0].depth_minus1 == 15){ + av_assert0(c->scalingBpp == 16); + for(j=0; j<dst_stride/2+1; j++) + ((int32_t*)(c->chrUPixBuf[i]))[j] = 1<<18; + } else + for(j=0; j<dst_stride+1; j++) + ((int16_t*)(c->chrUPixBuf[i]))[j] = 1<<14; assert(c->chrDstH <= dstH); |
