39 unsigned int chunk_id = 0, chunk_arg = 0;
40 unsigned long chunk_size = 0;
41 int i, j, k, nv1, nv2, vqflg = 0, vqflg_pos = -1;
42 int vqid, xpos, ypos, xp, yp, x, y, mx, my;
43 int frame_stats[2][4] = {{0},{0}};
48 chunk_id = bytestream2_get_le16(&ri->
gb);
49 chunk_size = bytestream2_get_le32(&ri->
gb);
50 chunk_arg = bytestream2_get_le16(&ri->
gb);
55 if((nv1 = chunk_arg >> 8) == 0)
57 if((nv2 = chunk_arg & 0xff) == 0 && nv1 * 6 < chunk_size)
59 for(i = 0; i < nv1; i++) {
60 ri->
cb2x2[i].
y[0] = bytestream2_get_byte(&ri->
gb);
61 ri->
cb2x2[i].
y[1] = bytestream2_get_byte(&ri->
gb);
62 ri->
cb2x2[i].
y[2] = bytestream2_get_byte(&ri->
gb);
63 ri->
cb2x2[i].
y[3] = bytestream2_get_byte(&ri->
gb);
64 ri->
cb2x2[i].
u = bytestream2_get_byte(&ri->
gb);
65 ri->
cb2x2[i].
v = bytestream2_get_byte(&ri->
gb);
67 for(i = 0; i < nv2; i++)
68 for(j = 0; j < 4; j++)
69 ri->
cb4x4[i].
idx[j] = bytestream2_get_byte(&ri->
gb);
76 for (yp = ypos; yp < ypos + 16; yp += 8)
77 for (xp = xpos; xp < xpos + 16; xp += 8) {
79 vqflg = bytestream2_get_le16(&ri->
gb);
82 vqid = (vqflg >> (vqflg_pos * 2)) & 0x3;
83 frame_stats[0][vqid]++;
90 int byte = bytestream2_get_byte(&ri->
gb);
91 mx = 8 - (byte >> 4) - ((
signed char) (chunk_arg >> 8));
92 my = 8 - (byte & 0xf) - ((
signed char) chunk_arg);
97 qcell = ri->
cb4x4 + bytestream2_get_byte(&ri->
gb);
104 for (k = 0; k < 4; k++) {
110 vqflg = bytestream2_get_le16(&ri->
gb);
113 vqid = (vqflg >> (vqflg_pos * 2)) & 0x3;
114 frame_stats[1][vqid]++;
120 int byte = bytestream2_get_byte(&ri->
gb);
121 mx = 8 - (byte >> 4) - ((
signed char) (chunk_arg >> 8));
122 my = 8 - (byte & 0xf) - ((
signed char) chunk_arg);
127 qcell = ri->
cb4x4 + bytestream2_get_byte(&ri->
gb);
148 if (xpos >= ri->
width) {
166 "Dimensions must be a multiple of 16\n");
187 void *
data,
int *got_frame,
191 int buf_size = avpkt->
size;