yadif: redesign first and last 2 lines handling.
The previous code dependent on the input buffer matching the buffer that has been provided by yadifs get_buffer. The API does in now way gurantee this though its often true. This fixes some out of array reads. The regression test checksums change due to "out of picture" values being initialized differently. There should be no visual difference in the filters output Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer
parent
9f088a1ed4
commit
2f7e8dcf45
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@ -112,6 +112,7 @@ static void filter(AVFilterContext *ctx, AVFilterBufferRef *dstpic,
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int w = dstpic->video->w;
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int h = dstpic->video->h;
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int refs = yadif->cur->linesize[i];
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int absrefs = FFABS(refs);
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int df = (yadif->csp->comp[i].depth_minus1 + 8) / 8;
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if (i == 1 || i == 2) {
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@ -120,6 +121,12 @@ static void filter(AVFilterContext *ctx, AVFilterBufferRef *dstpic,
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h >>= yadif->csp->log2_chroma_h;
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}
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if(yadif->temp_line_size < absrefs) {
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av_free(yadif->temp_line);
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yadif->temp_line = av_mallocz(2*64 + 5*absrefs);
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yadif->temp_line_size = absrefs;
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}
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for (y = 0; y < h; y++) {
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if ((y ^ parity) & 1) {
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uint8_t *prev = &yadif->prev->data[i][y*refs];
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@ -127,7 +134,25 @@ static void filter(AVFilterContext *ctx, AVFilterBufferRef *dstpic,
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uint8_t *next = &yadif->next->data[i][y*refs];
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uint8_t *dst = &dstpic->data[i][y*dstpic->linesize[i]];
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int mode = y==1 || y+2==h ? 2 : yadif->mode;
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yadif->filter_line(dst, prev, cur, next, w, y+1<h ? refs : -refs, y ? -refs : refs, parity ^ tff, mode);
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int prefs = y+1<h ? refs : -refs;
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int mrefs = y ?-refs : refs;
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if(y<=1 || y+2>=h) {
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int j;
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uint8_t *tmp = yadif->temp_line + 64 + 2*absrefs;
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if(mode<2)
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memcpy(tmp+2*mrefs, cur+2*mrefs, w*df);
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memcpy(tmp+mrefs, cur+mrefs, w*df);
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memcpy(tmp , cur , w*df);
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if(prefs != mrefs) {
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memcpy(tmp+prefs, cur+prefs, w*df);
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if(mode<2)
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memcpy(tmp+2*prefs, cur+2*prefs, w*df);
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}
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cur = tmp;
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}
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yadif->filter_line(dst, prev, cur, next, w, prefs, mrefs, parity ^ tff, mode);
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} else {
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memcpy(&dstpic->data[i][y*dstpic->linesize[i]],
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&yadif->cur->data[i][y*refs], w*df);
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@ -343,6 +368,7 @@ static av_cold void uninit(AVFilterContext *ctx)
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if (yadif->prev) avfilter_unref_bufferp(&yadif->prev);
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if (yadif->cur ) avfilter_unref_bufferp(&yadif->cur );
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if (yadif->next) avfilter_unref_bufferp(&yadif->next);
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av_freep(&yadif->temp_line); yadif->temp_line_size = 0;
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}
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static int query_formats(AVFilterContext *ctx)
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@ -56,6 +56,8 @@ typedef struct {
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const AVPixFmtDescriptor *csp;
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int eof;
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uint8_t *temp_line;
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int temp_line_size;
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} YADIFContext;
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void ff_yadif_init_x86(YADIFContext *yadif);
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@ -2,31 +2,31 @@
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0, 9, 9, 1, 622080, 0x4440caef
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0, 10, 10, 1, 622080, 0xce67e69d
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0, 11, 11, 1, 622080, 0x1dbdc653
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0, 12, 12, 1, 622080, 0x82c591d1
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0, 12, 12, 1, 622080, 0x55c791d0
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0, 13, 13, 1, 622080, 0x8193740b
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0, 14, 14, 1, 622080, 0xcb219711
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0, 15, 15, 1, 622080, 0x1870783b
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0, 14, 14, 1, 622080, 0x7125970f
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0, 15, 15, 1, 622080, 0xeb63783a
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0, 16, 16, 1, 622080, 0x7080590b
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0, 17, 17, 1, 622080, 0x6df4175d
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0, 18, 18, 1, 622080, 0x6b530e95
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0, 17, 17, 1, 622080, 0x13f8175b
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0, 18, 18, 1, 622080, 0x3e550e94
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0, 19, 19, 1, 622080, 0x7f9d66f7
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0, 20, 20, 1, 622080, 0x338cda81
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0, 21, 21, 1, 622080, 0xb13797f8
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0, 22, 22, 1, 622080, 0xb51e7ca4
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0, 20, 20, 1, 622080, 0x068eda80
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0, 21, 21, 1, 622080, 0x843997f7
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0, 22, 22, 1, 622080, 0x88207ca3
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0, 23, 23, 1, 622080, 0x353eed75
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0, 24, 24, 1, 622080, 0xf93e92b0
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0, 25, 25, 1, 622080, 0xd0811094
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0, 26, 26, 1, 622080, 0xb04a3141
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0, 27, 27, 1, 622080, 0x4ab84909
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0, 28, 28, 1, 622080, 0xa0fcb8fb
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0, 29, 29, 1, 622080, 0x9003aebb
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0, 28, 28, 1, 622080, 0x4700b8f9
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0, 29, 29, 1, 622080, 0x6305aeba
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0, 30, 30, 1, 622080, 0x153faa3e
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0, 31, 31, 1, 622080, 0xae724063
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0, 32, 32, 1, 622080, 0xeb4de77a
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0, 32, 32, 1, 622080, 0xbe4fe779
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0, 33, 33, 1, 622080, 0x209ed8c7
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0, 34, 34, 1, 622080, 0xe2bbac96
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0, 35, 35, 1, 622080, 0xe945441e
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0, 36, 36, 1, 622080, 0x8f8cbd5f
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0, 37, 37, 1, 622080, 0xbc3cf717
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0, 36, 36, 1, 622080, 0x3590bd5d
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0, 37, 37, 1, 622080, 0x8f3ef716
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0, 38, 38, 1, 622080, 0x0109f125
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0, 39, 39, 1, 622080, 0x230c373f
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@ -5,27 +5,27 @@
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0, 21, 21, 1, 622080, 0x9a57891f
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0, 22, 22, 1, 622080, 0x1dbdc653
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0, 23, 23, 1, 622080, 0xc171c0c5
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0, 24, 24, 1, 622080, 0x82c591d1
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0, 24, 24, 1, 622080, 0x55c791d0
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0, 25, 25, 1, 622080, 0x20db9890
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0, 26, 26, 1, 622080, 0x8193740b
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0, 27, 27, 1, 622080, 0xdb181d52
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0, 28, 28, 1, 622080, 0xcb219711
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0, 28, 28, 1, 622080, 0x7125970f
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0, 29, 29, 1, 622080, 0xc2b913d1
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0, 30, 30, 1, 622080, 0x1870783b
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0, 30, 30, 1, 622080, 0xeb63783a
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0, 31, 31, 1, 622080, 0xf1d9c5fb
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0, 32, 32, 1, 622080, 0x7080590b
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0, 33, 33, 1, 622080, 0x669c5775
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0, 34, 34, 1, 622080, 0x6df4175d
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0, 33, 33, 1, 622080, 0xeda55774
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0, 34, 34, 1, 622080, 0x13f8175b
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0, 35, 35, 1, 622080, 0x01921a16
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0, 36, 36, 1, 622080, 0x6b530e95
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0, 36, 36, 1, 622080, 0x3e550e94
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0, 37, 37, 1, 622080, 0xd5047bc9
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0, 38, 38, 1, 622080, 0x7f9d66f7
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0, 39, 39, 1, 622080, 0xa8b006eb
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0, 40, 40, 1, 622080, 0x338cda81
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0, 39, 39, 1, 622080, 0x2fc806ea
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0, 40, 40, 1, 622080, 0x068eda80
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0, 41, 41, 1, 622080, 0xf0e125a7
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0, 42, 42, 1, 622080, 0xb13797f8
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0, 42, 42, 1, 622080, 0x843997f7
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0, 43, 43, 1, 622080, 0x4afe2976
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0, 44, 44, 1, 622080, 0xb51e7ca4
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0, 44, 44, 1, 622080, 0x88207ca3
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0, 45, 45, 1, 622080, 0x637fcbfe
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0, 46, 46, 1, 622080, 0x353eed75
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0, 47, 47, 1, 622080, 0xd9a8f5ac
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@ -34,30 +34,30 @@
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0, 50, 50, 1, 622080, 0xd0811094
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0, 51, 51, 1, 622080, 0x3039906f
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0, 52, 52, 1, 622080, 0xb04a3141
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0, 53, 53, 1, 622080, 0x52872cf9
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0, 53, 53, 1, 622080, 0xe62d2cfa
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0, 54, 54, 1, 622080, 0x4ab84909
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0, 55, 55, 1, 622080, 0x82de12ee
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0, 56, 56, 1, 622080, 0xa0fcb8fb
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0, 56, 56, 1, 622080, 0x4700b8f9
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0, 57, 57, 1, 622080, 0x7e849cc9
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0, 58, 58, 1, 622080, 0x9003aebb
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0, 59, 59, 1, 622080, 0xffe6f770
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0, 58, 58, 1, 622080, 0x6305aeba
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0, 59, 59, 1, 622080, 0x939bf771
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0, 60, 60, 1, 622080, 0x153faa3e
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0, 61, 61, 1, 622080, 0xb67f3233
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0, 62, 62, 1, 622080, 0xae724063
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0, 63, 63, 1, 622080, 0x15fe44b4
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0, 64, 64, 1, 622080, 0xeb4de77a
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0, 63, 63, 1, 622080, 0xed2b44b3
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0, 64, 64, 1, 622080, 0xbe4fe779
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0, 74, 74, 1, 622080, 0x8f3ef716
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0, 76, 76, 1, 622080, 0x0109f125
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