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@ -24,20 +24,20 @@ |
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#include "imgutils.h" |
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#include "libavutil/pixdesc.h" |
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int av_fill_image_linesizes(int linesize[4], enum PixelFormat pix_fmt, int width) |
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int av_fill_image_linesizes(int linesizes[4], enum PixelFormat pix_fmt, int width) |
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{ |
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int i; |
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const AVPixFmtDescriptor *desc = &av_pix_fmt_descriptors[pix_fmt]; |
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int max_step [4]; /* max pixel step for each plane */ |
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int max_step_comp[4]; /* the component for each plane which has the max pixel step */ |
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memset(linesize, 0, 4*sizeof(linesize[0])); |
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memset(linesizes, 0, 4*sizeof(linesizes[0])); |
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if (desc->flags & PIX_FMT_HWACCEL) |
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return AVERROR(EINVAL); |
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if (desc->flags & PIX_FMT_BITSTREAM) { |
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linesize[0] = (width * (desc->comp[0].step_minus1+1) + 7) >> 3; |
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linesizes[0] = (width * (desc->comp[0].step_minus1+1) + 7) >> 3; |
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return 0; |
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} |
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@ -53,7 +53,7 @@ int av_fill_image_linesizes(int linesize[4], enum PixelFormat pix_fmt, int width |
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for (i = 0; i < 4; i++) { |
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int s = (max_step_comp[i] == 1 || max_step_comp[i] == 2) ? desc->log2_chroma_w : 0; |
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linesize[i] = max_step[i] * (((width + (1 << s) - 1)) >> s); |
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linesizes[i] = max_step[i] * (((width + (1 << s) - 1)) >> s); |
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} |
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return 0; |
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