int ff_fill_line_with_color(uint8_t *line[4], int pixel_step[4], int w, uint8_t dst_color[4], enum AVPixelFormat pix_fmt, uint8_t rgba_color[4], int *is_packed_rgba, uint8_t rgba_map_ptr[4]) { uint8_t rgba_map[4] = {0}; int i; const AVPixFmtDescriptor *pix_desc = av_pix_fmt_desc_get(pix_fmt); int hsub = pix_desc->log2_chroma_w; *is_packed_rgba = ff_fill_rgba_map(rgba_map, pix_fmt) >= 0; if (*is_packed_rgba) { pixel_step[0] = (av_get_bits_per_pixel(pix_desc))>>3; for (i = 0; i < 4; i++) dst_color[rgba_map[i]] = rgba_color[i]; line[0] = av_malloc_array(w, pixel_step[0]); for (i = 0; i < w; i++) memcpy(line[0] + i * pixel_step[0], dst_color, pixel_step[0]); if (rgba_map_ptr) memcpy(rgba_map_ptr, rgba_map, sizeof(rgba_map[0]) * 4); } else { int plane; dst_color[0] = RGB_TO_Y_CCIR(rgba_color[0], rgba_color[1], rgba_color[2]); dst_color[1] = RGB_TO_U_CCIR(rgba_color[0], rgba_color[1], rgba_color[2], 0); dst_color[2] = RGB_TO_V_CCIR(rgba_color[0], rgba_color[1], rgba_color[2], 0); dst_color[3] = rgba_color[3]; for (plane = 0; plane < 4; plane++) { int line_size; int hsub1 = (plane == 1 || plane == 2) ? hsub : 0; pixel_step[plane] = 1; line_size = FF_CEIL_RSHIFT(w, hsub1) * pixel_step[plane]; line[plane] = av_malloc(line_size); if (!line[plane]) { while(plane && line[plane-1]) av_freep(&line[--plane]); } memset(line[plane], dst_color[plane], line_size); } } return 0; }