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* Modifies width and height values so that they will result in a memory
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* buffer that is acceptable for the codec if you do not use any horizontal
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void avcodec_align_dimensions(AVCodecContext *s, int *width, int *height);
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* Modifies width and height values so that they will result in a memory
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* buffer that is acceptable for the codec if you also ensure that all
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* line sizes are a multiple of the respective linesize_align[i].
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void avcodec_align_dimensions2(AVCodecContext *s, int *width, int *height,