59 const uint8_t *src,
int src_plane_size,
int nplanes)
62 const uint8_t *dst_start = dst;
65 if (dst_size < 2LL * src_plane_size * nplanes || src_plane_size <= 0)
68 for (p = 0; p < nplanes; p++) {
70 const uint8_t *src_plane = src + p;
71 const uint8_t *src_plane_end = src_plane + src_plane_size * nplanes;
72 uint8_t prev = *src_plane;
75 for (; ; src_plane += nplanes) {
76 if (src_plane < src_plane_end && *src_plane == prev && count < 0x3F) {
81 if (count != 1 || prev >= 0xC0)
82 *dst++ = 0xC0 | count;
85 if (src_plane == src_plane_end)
95 return dst - dst_start;
99 unsigned char *buf,
int buf_size,
void *
data)
103 const uint8_t *buf_start = buf;
104 const uint8_t *buf_end = buf + buf_size;
106 int bpp, nplanes, i, y, line_bytes, written;
107 const uint32_t *pal =
NULL;
114 if (avctx->
width > 65535 || avctx->
height > 65535) {
132 pal = (uint32_t *)pict->
data[1];
144 line_bytes = (avctx->
width * bpp + 7) >> 3;
145 line_bytes = (line_bytes + 1) & ~1;
147 bytestream_put_byte(&buf, 10);
148 bytestream_put_byte(&buf, 5);
149 bytestream_put_byte(&buf, 1);
150 bytestream_put_byte(&buf, bpp);
151 bytestream_put_le16(&buf, 0);
152 bytestream_put_le16(&buf, 0);
153 bytestream_put_le16(&buf, avctx->
width - 1);
154 bytestream_put_le16(&buf, avctx->
height - 1);
155 bytestream_put_le16(&buf, 0);
156 bytestream_put_le16(&buf, 0);
157 for (i = 0; i < 16; i++)
158 bytestream_put_be24(&buf, pal ? pal[i] : 0);
159 bytestream_put_byte(&buf, 0);
160 bytestream_put_byte(&buf, nplanes);
161 bytestream_put_le16(&buf, line_bytes);
163 while (buf - buf_start < 128)
168 for (y = 0; y < avctx->
height; y++) {
170 src, line_bytes, nplanes)) < 0) {
178 if (nplanes == 1 && bpp == 8) {
179 if (buf_end - buf < 257) {
183 bytestream_put_byte(&buf, 12);
184 for (i = 0; i < 256; i++) {
185 bytestream_put_be24(&buf, pal[i]);
189 return buf - buf_start;