- int ret;
-
- if ((ret = build_vlc(&s->vlcs[0][0], avpriv_mjpeg_bits_dc_luminance,
- avpriv_mjpeg_val_dc, 12, 0, 0)) < 0)
- return ret;
-
- if ((ret = build_vlc(&s->vlcs[0][1], avpriv_mjpeg_bits_dc_chrominance,
- avpriv_mjpeg_val_dc, 12, 0, 0)) < 0)
- return ret;
-
- if ((ret = build_vlc(&s->vlcs[1][0], avpriv_mjpeg_bits_ac_luminance,
- avpriv_mjpeg_val_ac_luminance, 251, 0, 1)) < 0)
- return ret;
-
- if ((ret = build_vlc(&s->vlcs[1][1], avpriv_mjpeg_bits_ac_chrominance,
- avpriv_mjpeg_val_ac_chrominance, 251, 0, 1)) < 0)
- return ret;
-
- if ((ret = build_vlc(&s->vlcs[2][0], avpriv_mjpeg_bits_ac_luminance,
- avpriv_mjpeg_val_ac_luminance, 251, 0, 0)) < 0)
- return ret;
-
- if ((ret = build_vlc(&s->vlcs[2][1], avpriv_mjpeg_bits_ac_chrominance,
- avpriv_mjpeg_val_ac_chrominance, 251, 0, 0)) < 0)
- return ret;
+ static const struct {
+ int class;
+ int index;
+ const uint8_t *bits;
+ const uint8_t *values;
+ int codes;
+ int length;
+ } ht[] = {
+ { 0, 0, avpriv_mjpeg_bits_dc_luminance,
+ avpriv_mjpeg_val_dc, 12, 12 },
+ { 0, 1, avpriv_mjpeg_bits_dc_chrominance,
+ avpriv_mjpeg_val_dc, 12, 12 },
+ { 1, 0, avpriv_mjpeg_bits_ac_luminance,
+ avpriv_mjpeg_val_ac_luminance, 251, 162 },
+ { 1, 1, avpriv_mjpeg_bits_ac_chrominance,
+ avpriv_mjpeg_val_ac_chrominance, 251, 162 },
+ { 2, 0, avpriv_mjpeg_bits_ac_luminance,
+ avpriv_mjpeg_val_ac_luminance, 251, 162 },
+ { 2, 1, avpriv_mjpeg_bits_ac_chrominance,
+ avpriv_mjpeg_val_ac_chrominance, 251, 162 },
+ };
+ int i, ret;
+
+ for (i = 0; i < FF_ARRAY_ELEMS(ht); i++) {
+ ret = build_vlc(&s->vlcs[ht[i].class][ht[i].index],
+ ht[i].bits, ht[i].values, ht[i].codes,
+ 0, ht[i].class == 1);
+ if (ret < 0)
+ return ret;