-int ff_set_systematic_pal(uint32_t pal[256], enum PixelFormat pix_fmt){
- int i;
-
- for(i=0; i<256; i++){
- int r,g,b;
-
- switch(pix_fmt) {
- case PIX_FMT_RGB8:
- r= (i>>5 )*36;
- g= ((i>>2)&7)*36;
- b= (i&3 )*85;
- break;
- case PIX_FMT_BGR8:
- b= (i>>6 )*85;
- g= ((i>>3)&7)*36;
- r= (i&7 )*36;
- break;
- case PIX_FMT_RGB4_BYTE:
- r= (i>>3 )*255;
- g= ((i>>1)&3)*85;
- b= (i&1 )*255;
- break;
- case PIX_FMT_BGR4_BYTE:
- b= (i>>3 )*255;
- g= ((i>>1)&3)*85;
- r= (i&1 )*255;
- break;
- case PIX_FMT_GRAY8:
- r=b=g= i;
- break;
- default:
- return -1;
- }
- pal[i] = b + (g<<8) + (r<<16);
- }
-
- return 0;
-}
-
-int ff_fill_linesize(AVPicture *picture, enum PixelFormat pix_fmt, int width)
-{
- int i;
- const AVPixFmtDescriptor *desc = &av_pix_fmt_descriptors[pix_fmt];
- int max_plane_step [4];
- int max_plane_step_comp[4];
-
- memset(picture->linesize, 0, sizeof(picture->linesize));
-
- if (desc->flags & PIX_FMT_HWACCEL)
- return -1;
-
- if (desc->flags & PIX_FMT_BITSTREAM) {
- picture->linesize[0] = (width * (desc->comp[0].step_minus1+1) + 7) >> 3;
- return 0;
- }
-
- memset(max_plane_step , 0, sizeof(max_plane_step ));
- memset(max_plane_step_comp, 0, sizeof(max_plane_step_comp));
- for (i = 0; i < 4; i++) {
- const AVComponentDescriptor *comp = &(desc->comp[i]);
- if ((comp->step_minus1+1) > max_plane_step[comp->plane]) {
- max_plane_step [comp->plane] = comp->step_minus1+1;
- max_plane_step_comp[comp->plane] = i;
- }
- }
-
- for (i = 0; i < 4; i++) {
- int s = (max_plane_step_comp[i] == 1 || max_plane_step_comp[i] == 2) ? desc->log2_chroma_w : 0;
- picture->linesize[i] = max_plane_step[i] * (((width + (1 << s) - 1)) >> s);
- }
-
- return 0;
-}
-
-int ff_fill_pointer(AVPicture *picture, uint8_t *ptr, enum PixelFormat pix_fmt,
- int height)
-{
- int size, h2, size2;
- const AVPixFmtDescriptor *desc = &av_pix_fmt_descriptors[pix_fmt];
-
- size = picture->linesize[0] * height;
- switch(pix_fmt) {
- case PIX_FMT_YUV420P:
- case PIX_FMT_YUV422P:
- case PIX_FMT_YUV444P:
- case PIX_FMT_YUV410P:
- case PIX_FMT_YUV411P:
- case PIX_FMT_YUV440P:
- case PIX_FMT_YUVJ420P:
- case PIX_FMT_YUVJ422P:
- case PIX_FMT_YUVJ444P:
- case PIX_FMT_YUVJ440P:
- case PIX_FMT_YUV420P16LE:
- case PIX_FMT_YUV422P16LE:
- case PIX_FMT_YUV444P16LE:
- case PIX_FMT_YUV420P16BE:
- case PIX_FMT_YUV422P16BE:
- case PIX_FMT_YUV444P16BE:
- h2 = (height + (1 << desc->log2_chroma_h) - 1) >> desc->log2_chroma_h;
- size2 = picture->linesize[1] * h2;
- picture->data[0] = ptr;
- picture->data[1] = picture->data[0] + size;
- picture->data[2] = picture->data[1] + size2;
- picture->data[3] = NULL;
- return size + 2 * size2;
- case PIX_FMT_YUVA420P:
- h2 = (height + (1 << desc->log2_chroma_h) - 1) >> desc->log2_chroma_h;
- size2 = picture->linesize[1] * h2;
- picture->data[0] = ptr;
- picture->data[1] = picture->data[0] + size;
- picture->data[2] = picture->data[1] + size2;
- picture->data[3] = picture->data[1] + size2 + size2;
- return 2 * size + 2 * size2;
- case PIX_FMT_NV12:
- case PIX_FMT_NV21:
- h2 = (height + (1 << desc->log2_chroma_h) - 1) >> desc->log2_chroma_h;
- size2 = picture->linesize[1] * h2;
- picture->data[0] = ptr;
- picture->data[1] = picture->data[0] + size;
- picture->data[2] = NULL;
- picture->data[3] = NULL;
- return size + size2;
- case PIX_FMT_RGB24:
- case PIX_FMT_BGR24:
- case PIX_FMT_ARGB:
- case PIX_FMT_ABGR:
- case PIX_FMT_RGBA:
- case PIX_FMT_BGRA:
- case PIX_FMT_RGB48BE:
- case PIX_FMT_RGB48LE:
- case PIX_FMT_GRAY16BE:
- case PIX_FMT_GRAY16LE:
- case PIX_FMT_BGR444BE:
- case PIX_FMT_BGR444LE:
- case PIX_FMT_BGR555BE:
- case PIX_FMT_BGR555LE:
- case PIX_FMT_BGR565BE:
- case PIX_FMT_BGR565LE:
- case PIX_FMT_RGB444BE:
- case PIX_FMT_RGB444LE:
- case PIX_FMT_RGB555BE:
- case PIX_FMT_RGB555LE:
- case PIX_FMT_RGB565BE:
- case PIX_FMT_RGB565LE:
- case PIX_FMT_YUYV422:
- case PIX_FMT_UYVY422:
- case PIX_FMT_UYYVYY411:
- case PIX_FMT_RGB4:
- case PIX_FMT_BGR4:
- case PIX_FMT_MONOWHITE:
- case PIX_FMT_MONOBLACK:
- picture->data[0] = ptr;
- picture->data[1] = NULL;
- picture->data[2] = NULL;
- picture->data[3] = NULL;
- return size;
- case PIX_FMT_PAL8:
- case PIX_FMT_RGB8:
- case PIX_FMT_BGR8:
- case PIX_FMT_RGB4_BYTE:
- case PIX_FMT_BGR4_BYTE:
- case PIX_FMT_GRAY8:
- size2 = (size + 3) & ~3;
- picture->data[0] = ptr;
- picture->data[1] = ptr + size2; /* palette is stored here as 256 32 bit words */
- picture->data[2] = NULL;
- picture->data[3] = NULL;
- return size2 + 256 * 4;
- default:
- picture->data[0] = NULL;
- picture->data[1] = NULL;
- picture->data[2] = NULL;
- picture->data[3] = NULL;
- return -1;
- }
-}
-