55 static int fill_data_min_max(const uint8_t *ptr8, FITSHeader *header, const uint8_t *end)  in fill_data_min_max()  argument
65     header->data_min = DBL_MAX;  in fill_data_min_max()
66     header->data_max = -DBL_MAX;  in fill_data_min_max()
67     switch (header->bitpix) {  in fill_data_min_max()
70         for (i = 0; i < header->naxisn[1]; i++) { \  in fill_data_min_max()
71             for (j = 0; j < header->naxisn[0]; j++) { \  in fill_data_min_max()
73                 if (!header->blank_found || t != header->blank) { \  in fill_data_min_max()
74                     if (t > header->data_max) \  in fill_data_min_max()
75                         header->data_max = t; \  in fill_data_min_max()
76                     if (t < header->data_min) \  in fill_data_min_max()
77                         header->data_min = t; \  in fill_data_min_max()
105 static int fits_read_header(AVCodecContext *avctx, const uint8_t **ptr, FITSHeader *header,  in fits_read_header()  argument
113     avpriv_fits_header_init(header, STATE_BITPIX);  in fits_read_header()
117         ret = avpriv_fits_header_parse_line(avctx, header, ptr8, &metadata);  in fits_read_header()
129     if (header->rgb && (header->naxis != 3 || (header->naxisn[2] != 3 && header->naxisn[2] != 4))) {  in fits_read_header()
130 …RROR, "File contains RGB image but NAXIS = %d and NAXIS3 = %d\n", header->naxis, header->naxisn[2]…  in fits_read_header()
134     if (!header->rgb && header->naxis != 2) {  in fits_read_header()
135 …      av_log(avctx, AV_LOG_ERROR, "unsupported number of dimensions, NAXIS = %d\n", header->naxis);  in fits_read_header()
139     if (header->blank_found && (header->bitpix == -32 || header->bitpix == -64)) {  in fits_read_header()
140 …og(avctx, AV_LOG_WARNING, "BLANK keyword found but BITPIX = %d\n. Ignoring BLANK", header->bitpix);  in fits_read_header()
141         header->blank_found = 0;  in fits_read_header()
144     size = abs(header->bitpix) >> 3;  in fits_read_header()
145     for (i = 0; i < header->naxis; i++) {  in fits_read_header()
146         if (size == 0 || header->naxisn[i] > SIZE_MAX / size) {  in fits_read_header()
150         size *= header->naxisn[i];  in fits_read_header()
157     if (!header->rgb && (!header->data_min_found || !header->data_max_found)) {  in fits_read_header()
158         ret = fill_data_min_max(ptr8, header, end);  in fits_read_header()
160             av_log(avctx, AV_LOG_ERROR, "invalid BITPIX, %d\n", header->bitpix);  in fits_read_header()
168         header->data_min = (header->data_min - header->bzero) / header->bscale;  in fits_read_header()
169         header->data_max = (header->data_max - header->bzero) / header->bscale;  in fits_read_header()
171     if (!header->rgb && header->data_min >= header->data_max) {  in fits_read_header()
172         if (header->data_min > header->data_max) {  in fits_read_header()
173 …v_log(avctx, AV_LOG_ERROR, "data min/max (%g %g) is invalid\n", header->data_min, header->data_max…  in fits_read_header()
177         header->data_max ++;  in fits_read_header()
198     FITSHeader header;  in fits_decode_frame()  local
203     ret = fits_read_header(avctx, &ptr8, &header, end, &p->metadata);  in fits_decode_frame()
207     if (header.rgb) {  in fits_decode_frame()
208         if (header.bitpix == 8) {  in fits_decode_frame()
209             if (header.naxisn[2] == 3) {  in fits_decode_frame()
214         } else if (header.bitpix == 16) {  in fits_decode_frame()
215             if (header.naxisn[2] == 3) {  in fits_decode_frame()
221             av_log(avctx, AV_LOG_ERROR, "unsupported BITPIX = %d\n", header.bitpix);  in fits_decode_frame()
225         if (header.bitpix == 8) {  in fits_decode_frame()
232     if ((ret = ff_set_dimensions(avctx, header.naxisn[0], header.naxisn[1])) < 0)  in fits_decode_frame()
242     if (header.rgb) {  in fits_decode_frame()
243         switch(header.bitpix) {  in fits_decode_frame()
246         for (k = 0; k < header.naxisn[2]; k++) { \  in fits_decode_frame()
251                     if (!header.blank_found || t32 != header.blank) { \  in fits_decode_frame()
252                         t = t32 * header.bscale + header.bzero; \  in fits_decode_frame()
267         double scale = header.data_max - header.data_min;  in fits_decode_frame()
274         switch (header.bitpix) {  in fits_decode_frame()
281                 if (!header.blank_found || t != header.blank) { \  in fits_decode_frame()
282 …               *dst++ = lrint(((t - header.data_min) * ((1 << (sizeof(type) * 8)) - 1)) * scale); \  in fits_decode_frame()
298                 av_log(avctx, AV_LOG_ERROR, "invalid BITPIX, %d\n", header.bitpix);  in fits_decode_frame()