41 #define SCREEN_WIDE 640
42 #define SCREEN_HIGH 429
52 #define NEXT_BYTE(v) v = forward ? v + 1 : v - 1;
56 unsigned val, saved_val = 0;
58 const uint8_t *src, *source_end = source + src_len;
62 int forward = (frame_off <= -
SCREEN_WIDE) || (frame_off >= 0);
63 int read_two_nibbles, flag;
76 src = source + src_len - 1;
91 if (!mode || (tmplen == 4)) {
92 if (src < source || src >= source_end)
102 if (!read_two_nibbles) {
103 if (src < source || src >= source_end)
106 val |= *src << shift;
112 read_two_nibbles = 0;
114 mask = (1 << shift) - 1;
115 val = ((val >> 2) & ~mask) | (val &
mask);
117 if ((val & (0xC << shift))) {
128 saved_val = val >> (4 + shift);
130 val &= (1 << (shift + 4)) - 1;
133 advance_mode = val & 1;
134 len = (val >> 1) - 1;
135 mode += 1 + advance_mode;
138 if (len <= 0 ||
FFABS(dst_end - dst) <
len)
145 frame_end - dst < frame_off + len ||
146 frame_end - dst < len)
148 for (i = 0; i <
len; i++)
149 dst[i] = dst[frame_off + i];
155 frame_end - dst < frame_off + len ||
156 frame_end - dst < len)
158 for (i = len - 1; i >= 0; i--)
159 dst[i] = dst[frame_off + i];
164 if (source + src_len - src < len)
166 memcpy(dst, src, len);
170 if (src - source < len)
174 memcpy(dst, src, len);
178 val = forward ? dst[-1] : dst[1];
180 memset(dst, val, len);
184 memset(dst, val, len);
206 type = bytestream_get_byte(&c->
stream);
208 int blobs = bytestream_get_byte(&c->
stream);
209 if (pkt->
size < blobs * 65 + 2) {
216 int command_size = (type &
BMV_PRINT) ? 8 : 10;
221 c->
stream += command_size;
228 for (i = 0; i < 256; i++)
229 c->
pal[i] = bytestream_get_be24(&c->
stream);
236 scr_off = (int16_t)bytestream_get_le16(&c->
stream);
256 outptr = frame->
data[0];
259 for (i = 0; i < avctx->
height; i++) {
260 memcpy(outptr, srcptr, avctx->
width);
261 srcptr += avctx->
width;
284 16512, 8256, 4128, 2064, 1032, 516, 258, 192, 129, 88, 64, 56, 48, 40, 36, 32
297 int *got_frame_ptr,
AVPacket *avpkt)
301 int buf_size = avpkt->
size;
302 int blocks = 0, total_blocks, i;
304 int16_t *output_samples;
307 total_blocks = *buf++;
308 if (buf_size < total_blocks * 65 + 1) {
310 total_blocks * 65 + 1, buf_size);
320 output_samples = (int16_t *)frame->
data[0];
322 for (blocks = 0; blocks < total_blocks; blocks++) {
324 code = (code >> 1) | (code << 7);
327 for (i = 0; i < 32; i++) {
328 *output_samples++ = av_clip_int16((scale[0] * (int8_t)*buf++) >> 5);
329 *output_samples++ = av_clip_int16((scale[1] * (int8_t)*buf++) >> 5);