37 unsigned int bytes_per_scanline,
41 unsigned char run, value;
44 while (i < bytes_per_scanline && src < end) {
47 if (value >= 0xc0 && src < end) {
51 while (i < bytes_per_scanline && run--)
55 memcpy(dst, src, bytes_per_scanline);
56 src += bytes_per_scanline;
67 for (i = 0; i < pallen; i++)
68 *dst++ = bytestream_get_be24(src);
70 memset(dst, 0, (256 - pallen) *
sizeof(*dst));
77 int buf_size = avpkt->
size;
79 int compressed, xmin, ymin, xmax, ymax;
80 unsigned int w, h, bits_per_pixel, bytes_per_line, nplanes,
stride, y, x,
83 const uint8_t *buf_end = buf + buf_size;
88 if (buf[0] != 0x0a || buf[1] > 5) {
99 if (xmax < xmin || ymax < ymin) {
107 bits_per_pixel = buf[3];
108 bytes_per_line =
AV_RL16(buf + 66);
110 bytes_per_scanline = nplanes * bytes_per_line;
112 if (bytes_per_scanline < (w * bits_per_pixel * nplanes + 7) / 8 ||
113 (!compressed && bytes_per_scanline > buf_size / h)) {
118 switch ((nplanes << 8) + bits_per_pixel) {
151 scanline =
av_malloc(bytes_per_scanline);
155 if (nplanes == 3 && bits_per_pixel == 8) {
156 for (y = 0; y < h; y++) {
158 scanline, bytes_per_scanline, compressed);
160 for (x = 0; x < w; x++) {
161 ptr[3 * x] = scanline[x];
162 ptr[3 * x + 1] = scanline[x + bytes_per_line];
163 ptr[3 * x + 2] = scanline[x + (bytes_per_line << 1)];
168 }
else if (nplanes == 1 && bits_per_pixel == 8) {
169 const uint8_t *palstart = bufstart + buf_size - 769;
171 if (buf_size < 769) {
178 for (y = 0; y < h; y++, ptr +=
stride) {
180 scanline, bytes_per_scanline, compressed);
181 memcpy(ptr, scanline, w);
184 if (buf != palstart) {
194 }
else if (nplanes == 1) {
197 for (y = 0; y < h; y++) {
201 scanline, bytes_per_scanline, compressed);
203 for (x = 0; x < w; x++)
204 ptr[x] =
get_bits(&s, bits_per_pixel);
210 for (y = 0; y < h; y++) {
212 scanline, bytes_per_scanline, compressed);
214 for (x = 0; x < w; x++) {
215 int m = 0x80 >> (x & 7), v = 0;
216 for (i = nplanes - 1; i >= 0; i--) {
218 v += !!(scanline[i * bytes_per_line + (x >> 3)] & m);
226 if (nplanes == 1 && bits_per_pixel == 8) {
228 }
else if (bits_per_pixel < 8) {
229 const uint8_t *palette = bufstart + 16;
235 ret = buf - bufstart;