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Fine. Count the lines.
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@@ -34,9 +34,11 @@ val decode(std::string image_in) {
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auto stride = cinfo.output_width * 4;
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// Process data
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auto buffer_lines_available = cinfo.output_height;
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while (cinfo.output_scanline < cinfo.output_height) {
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uint8_t* ptr = &output_buffer[stride * cinfo.output_scanline];
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jpeg_read_scanlines(&cinfo, &ptr, cinfo.output_height);
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auto lines_read = jpeg_read_scanlines(&cinfo, &ptr, buffer_lines_available);
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buffer_lines_available -= lines_read;
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}
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jpeg_finish_decompress(&cinfo);
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