63 void *
data,
int *got_frame,
67 int buf_size = avpkt->
size;
70 unsigned char *y_plane;
71 unsigned char *u_plane;
72 unsigned char *v_plane;
78 const signed char *y_table = (
const signed char*)buf + 0;
79 const signed char *u_table = (
const signed char*)buf + 16;
80 const signed char *v_table = (
const signed char*)buf + 32;
82 unsigned char y_pred, u_pred, v_pred;
84 unsigned char cur_byte;
95 if (buf_size != 48 + s->
height * (s->
width * 3 / 4)) {
119 for (y_ptr = 0, u_ptr = 0, v_ptr = 0;
126 cur_byte = buf[stream_ptr++];
127 u_plane[u_ptr++] = u_pred = cur_byte & 0xF0;
128 y_plane[y_ptr++] = y_pred = (cur_byte & 0x0F) << 4;
130 cur_byte = buf[stream_ptr++];
131 v_plane[v_ptr++] = v_pred = cur_byte & 0xF0;
132 y_pred += y_table[cur_byte & 0x0F];
133 y_plane[y_ptr++] = y_pred;
135 cur_byte = buf[stream_ptr++];
136 y_pred += y_table[cur_byte & 0x0F];
137 y_plane[y_ptr++] = y_pred;
138 y_pred += y_table[(cur_byte & 0xF0) >> 4];
139 y_plane[y_ptr++] = y_pred;
142 pixel_groups = s->
width / 4 - 1;
143 while (pixel_groups--) {
145 cur_byte = buf[stream_ptr++];
146 u_pred += u_table[(cur_byte & 0xF0) >> 4];
147 u_plane[u_ptr++] = u_pred;
148 y_pred += y_table[cur_byte & 0x0F];
149 y_plane[y_ptr++] = y_pred;
151 cur_byte = buf[stream_ptr++];
152 v_pred += v_table[(cur_byte & 0xF0) >> 4];
153 v_plane[v_ptr++] = v_pred;
154 y_pred += y_table[cur_byte & 0x0F];
155 y_plane[y_ptr++] = y_pred;
157 cur_byte = buf[stream_ptr++];
158 y_pred += y_table[cur_byte & 0x0F];
159 y_plane[y_ptr++] = y_pred;
160 y_pred += y_table[(cur_byte & 0xF0) >> 4];
161 y_plane[y_ptr++] = y_pred;
182 #if CONFIG_AURA_DECODER
191 .capabilities = CODEC_CAP_DR1,
196 #if CONFIG_CYUV_DECODER
205 .capabilities = CODEC_CAP_DR1,