61 void *
data,
int *data_size,
64 const uint8_t *buf = avpkt->
data;
65 int buf_size = avpkt->
size;
68 unsigned char *y_plane;
69 unsigned char *u_plane;
70 unsigned char *v_plane;
76 const signed char *y_table = (
const signed char*)buf + 0;
77 const signed char *u_table = (
const signed char*)buf + 16;
78 const signed char *v_table = (
const signed char*)buf + 32;
80 unsigned char y_pred, u_pred, v_pred;
82 unsigned char cur_byte;
93 if (buf_size != 48 + s->
height * (s->
width * 3 / 4)) {
117 for (y_ptr = 0, u_ptr = 0, v_ptr = 0;
124 cur_byte = buf[stream_ptr++];
125 u_plane[u_ptr++] = u_pred = cur_byte & 0xF0;
126 y_plane[y_ptr++] = y_pred = (cur_byte & 0x0F) << 4;
128 cur_byte = buf[stream_ptr++];
129 v_plane[v_ptr++] = v_pred = cur_byte & 0xF0;
130 y_pred += y_table[cur_byte & 0x0F];
131 y_plane[y_ptr++] = y_pred;
133 cur_byte = buf[stream_ptr++];
134 y_pred += y_table[cur_byte & 0x0F];
135 y_plane[y_ptr++] = y_pred;
136 y_pred += y_table[(cur_byte & 0xF0) >> 4];
137 y_plane[y_ptr++] = y_pred;
140 pixel_groups = s->
width / 4 - 1;
141 while (pixel_groups--) {
143 cur_byte = buf[stream_ptr++];
144 u_pred += u_table[(cur_byte & 0xF0) >> 4];
145 u_plane[u_ptr++] = u_pred;
146 y_pred += y_table[cur_byte & 0x0F];
147 y_plane[y_ptr++] = y_pred;
149 cur_byte = buf[stream_ptr++];
150 v_pred += v_table[(cur_byte & 0xF0) >> 4];
151 v_plane[v_ptr++] = v_pred;
152 y_pred += y_table[cur_byte & 0x0F];
153 y_plane[y_ptr++] = y_pred;
155 cur_byte = buf[stream_ptr++];
156 y_pred += y_table[cur_byte & 0x0F];
157 y_plane[y_ptr++] = y_pred;
158 y_pred += y_table[(cur_byte & 0xF0) >> 4];
159 y_plane[y_ptr++] = y_pred;
180 #if CONFIG_AURA_DECODER
194 #if CONFIG_CYUV_DECODER