39 void *
data,
int *got_frame,
43 int buf_size = avpkt->
size;
47 unsigned int fsize, hsize;
52 int i, j, n, linesize;
64 if (bytestream_get_byte(&buf) !=
'B' ||
65 bytestream_get_byte(&buf) !=
'M') {
70 fsize = bytestream_get_le32(&buf);
71 if (buf_size < fsize) {
80 hsize = bytestream_get_le32(&buf);
81 ihsize = bytestream_get_le32(&buf);
82 if (ihsize + 14 > hsize) {
88 if (fsize == 14 || fsize == ihsize + 14)
102 width = bytestream_get_le32(&buf);
103 height = bytestream_get_le32(&buf);
106 width = bytestream_get_le16(&buf);
107 height = bytestream_get_le16(&buf);
115 if (bytestream_get_le16(&buf) != 1) {
120 depth = bytestream_get_le16(&buf);
123 comp = bytestream_get_le32(&buf);
135 rgb[0] = bytestream_get_le32(&buf);
136 rgb[1] = bytestream_get_le32(&buf);
137 rgb[2] = bytestream_get_le32(&buf);
148 rgb[0] = (rgb[0] >> 15) & 3;
149 rgb[1] = (rgb[1] >> 15) & 3;
150 rgb[2] = (rgb[2] >> 15) & 3;
152 if (rgb[0] + rgb[1] + rgb[2] != 3 ||
153 rgb[0] == rgb[1] || rgb[0] == rgb[2] || rgb[1] == rgb[2]) {
171 if (rgb[0] == 0xF800 && rgb[1] == 0x07E0 && rgb[2] == 0x001F)
173 else if (rgb[0] == 0x7C00 && rgb[1] == 0x03E0 && rgb[2] == 0x001F)
175 else if (rgb[0] == 0x0F00 && rgb[1] == 0x00F0 && rgb[2] == 0x000F)
178 av_log(avctx,
AV_LOG_ERROR,
"Unknown bitfields %0X %0X %0X\n", rgb[0], rgb[1], rgb[2]);
184 if (hsize - ihsize - 14 > 0)
191 if (hsize - ihsize - 14 > 0) {
220 dsize = buf_size - hsize;
223 n = ((avctx->
width * depth) / 8 + 3) & ~3;
227 dsize, n * avctx->
height);
244 int colors = 1 << depth;
246 memset(p->
data[1], 0, 1024);
251 t = bytestream_get_le32(&buf);
252 if (t < 0 || t > (1 << depth)) {
253 av_log(avctx,
AV_LOG_ERROR,
"Incorrect number of colors - %X for bitdepth %d\n", t, depth);
258 buf = buf0 + 14 + ihsize;
260 if ((hsize-ihsize-14) < (colors << 2)) {
261 for (i = 0; i < colors; i++)
262 ((uint32_t*)p->
data[1])[i] = bytestream_get_le24(&buf);
264 for (i = 0; i < colors; i++)
265 ((uint32_t*)p->
data[1])[i] = bytestream_get_le32(&buf);
283 for (i = 0; i < avctx->
height; i++) {
285 for (j = 0; j < n; j++) {
286 ptr[j*8+0] = buf[j] >> 7;
287 ptr[j*8+1] = (buf[j] >> 6) & 1;
288 ptr[j*8+2] = (buf[j] >> 5) & 1;
289 ptr[j*8+3] = (buf[j] >> 4) & 1;
290 ptr[j*8+4] = (buf[j] >> 3) & 1;
291 ptr[j*8+5] = (buf[j] >> 2) & 1;
292 ptr[j*8+6] = (buf[j] >> 1) & 1;
293 ptr[j*8+7] = buf[j] & 1;
301 for (i = 0; i < avctx->
height; i++) {
308 for (i = 0; i < avctx->
height; i++) {
310 for (j = 0; j < n; j++) {
311 ptr[j*2+0] = (buf[j] >> 4) & 0xF;
312 ptr[j*2+1] = buf[j] & 0xF;
319 for (i = 0; i < avctx->
height; i++) {
320 const uint16_t *src = (
const uint16_t *) buf;
321 uint16_t *dst = (uint16_t *) ptr;
323 for (j = 0; j < avctx->
width; j++)
331 for (i = 0; i < avctx->
height; i++) {
335 for (j = 0; j < avctx->
width; j++) {
336 dst[0] = src[rgb[2]];
337 dst[1] = src[rgb[1]];
338 dst[2] = src[rgb[0]];