{
avctx->pix_fmt = AV_PIX_FMT_YUV410P;
+ if (avctx->width & 7) {
+ av_log(avctx, AV_LOG_ERROR, "Width %d is not divisble by 8.\n", avctx->width);
+ return AVERROR_INVALIDDATA;
+ }
+
return 0;
}
p->pict_type = AV_PICTURE_TYPE_I;
p->key_frame = 1;
+ if (buf_size < 32)
+ goto packet_small;
+
for (i = 0; i < 16; i++) {
a->delta[i] = *bytestream++;
bytestream++;
+ buf_size--;
}
for (y = 0; y < avctx->height; y++) {
uint8_t *cb = &p->data[1][(y >> 2) * p->linesize[1]];
uint8_t *cr = &p->data[2][(y >> 2) * p->linesize[2]];
+ if (buf_size < 4 + avctx->width)
+ goto packet_small;
+
for (i = 0; i < 4; i++)
a->offset[i] = *bytestream++;
+ buf_size -= 4;
offset = a->offset[0] - a->delta[bytestream[2] & 0xF];
for (x = 0; x < avctx->width; x += 4) {
*cr++ = bytestream[1];
bytestream += 4;
+ buf_size -= 4;
}
} else {
+ if (buf_size < avctx->width / 2)
+ goto packet_small;
+
offset = a->offset[y & 3] - a->delta[bytestream[2] & 0xF];
for (x = 0; x < avctx->width; x += 8) {
luma[7] = offset += a->delta[bytestream[1] >> 4];
luma += 8;
bytestream += 4;
+ buf_size -= 4;
}
}
}
*got_frame = 1;
return buf_size;
+packet_small:
+ av_log(avctx, AV_LOG_ERROR, "Input packet too small.\n");
+ return AVERROR_INVALIDDATA;
}
AVCodec ff_vcr1_decoder = {