29 void *
data,
int *got_frame,
33 int buf_size = avpkt->
size;
35 unsigned int fsize, hsize;
40 int i, j, n, linesize, ret;
52 if (bytestream_get_byte(&buf) !=
'B' ||
53 bytestream_get_byte(&buf) !=
'M') {
58 fsize = bytestream_get_le32(&buf);
59 if (buf_size < fsize) {
68 hsize = bytestream_get_le32(&buf);
69 ihsize = bytestream_get_le32(&buf);
70 if (ihsize + 14 > hsize) {
76 if (fsize == 14 || fsize == ihsize + 14)
90 width = bytestream_get_le32(&buf);
91 height = bytestream_get_le32(&buf);
94 width = bytestream_get_le16(&buf);
95 height = bytestream_get_le16(&buf);
103 if (bytestream_get_le16(&buf) != 1) {
108 depth = bytestream_get_le16(&buf);
111 comp = bytestream_get_le32(&buf);
123 rgb[0] = bytestream_get_le32(&buf);
124 rgb[1] = bytestream_get_le32(&buf);
125 rgb[2] = bytestream_get_le32(&buf);
136 rgb[0] = (rgb[0] >> 15) & 3;
137 rgb[1] = (rgb[1] >> 15) & 3;
138 rgb[2] = (rgb[2] >> 15) & 3;
140 if (rgb[0] + rgb[1] + rgb[2] != 3 ||
141 rgb[0] == rgb[1] || rgb[0] == rgb[2] || rgb[1] == rgb[2]) {
159 if (rgb[0] == 0xF800 && rgb[1] == 0x07E0 && rgb[2] == 0x001F)
161 else if (rgb[0] == 0x7C00 && rgb[1] == 0x03E0 && rgb[2] == 0x001F)
163 else if (rgb[0] == 0x0F00 && rgb[1] == 0x00F0 && rgb[2] == 0x000F)
166 av_log(avctx,
AV_LOG_ERROR,
"Unknown bitfields %0X %0X %0X\n", rgb[0], rgb[1], rgb[2]);
172 if (hsize - ihsize - 14 > 0)
179 if (hsize - ihsize - 14 > 0) {
204 dsize = buf_size - hsize;
207 n = ((avctx->
width * depth) / 8 + 3) & ~3;
211 dsize, n * avctx->
height);
228 int colors = 1 << depth;
230 memset(p->
data[1], 0, 1024);
235 t = bytestream_get_le32(&buf);
236 if (t < 0 || t > (1 << depth)) {
237 av_log(avctx,
AV_LOG_ERROR,
"Incorrect number of colors - %X for bitdepth %d\n", t, depth);
242 buf = buf0 + 14 + ihsize;
244 if ((hsize-ihsize-14) < (colors << 2)) {
245 for (i = 0; i < colors; i++)
246 ((uint32_t*)p->
data[1])[i] = bytestream_get_le24(&buf);
248 for (i = 0; i < colors; i++)
249 ((uint32_t*)p->
data[1])[i] = bytestream_get_le32(&buf);
267 for (i = 0; i < avctx->
height; i++) {
269 for (j = 0; j < n; j++) {
270 ptr[j*8+0] = buf[j] >> 7;
271 ptr[j*8+1] = (buf[j] >> 6) & 1;
272 ptr[j*8+2] = (buf[j] >> 5) & 1;
273 ptr[j*8+3] = (buf[j] >> 4) & 1;
274 ptr[j*8+4] = (buf[j] >> 3) & 1;
275 ptr[j*8+5] = (buf[j] >> 2) & 1;
276 ptr[j*8+6] = (buf[j] >> 1) & 1;
277 ptr[j*8+7] = buf[j] & 1;
285 for (i = 0; i < avctx->
height; i++) {
292 for (i = 0; i < avctx->
height; i++) {
294 for (j = 0; j < n; j++) {
295 ptr[j*2+0] = (buf[j] >> 4) & 0xF;
296 ptr[j*2+1] = buf[j] & 0xF;
303 for (i = 0; i < avctx->
height; i++) {
304 const uint16_t *src = (
const uint16_t *) buf;
305 uint16_t *dst = (uint16_t *) ptr;
307 for (j = 0; j < avctx->
width; j++)
315 for (i = 0; i < avctx->
height; i++) {
319 for (j = 0; j < avctx->
width; j++) {
320 dst[0] = src[rgb[2]];
321 dst[1] = src[rgb[1]];
322 dst[2] = src[rgb[0]];