[FFmpeg-cvslog] indeo: Refactor ff_ivi_dec_huff_desc

[Luca Barbato]

ffmpeg | branch: release/1.1 | Luca Barbato <lu_zero at gentoo.org> | Wed Jul  3 12:58:40 2013 +0200| [d76480e6ba4022869857b748939053203a770a88] | committer: Reinhard Tartler

indeo: Refactor ff_ivi_dec_huff_desc

Spare an indentation level.

(cherry picked from commit f6f36ca8ca1b2526d3abff7d7c627322d3bce912)

Signed-off-by: Luca Barbato <lu_zero at gentoo.org>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=d76480e6ba4022869857b748939053203a770a88
---

 libavcodec/ivi_common.c |   62 ++++++++++++++++++++++++-----------------------
 1 file changed, 32 insertions(+), 30 deletions(-)

diff --git a/libavcodec/ivi_common.c b/libavcodec/ivi_common.c
index f026906..77cdce9 100644
--- a/libavcodec/ivi_common.c
+++ b/libavcodec/ivi_common.c
@@ -156,41 +156,43 @@ int ff_ivi_dec_huff_desc(GetBitContext *gb, int desc_coded, int which_tab,
     if (!desc_coded) {
         /* select default table */
         huff_tab->tab = (which_tab) ? &ivi_blk_vlc_tabs[7]
-            : &ivi_mb_vlc_tabs [7];
-    } else {
-        huff_tab->tab_sel = get_bits(gb, 3);
-        if (huff_tab->tab_sel == 7) {
-            /* custom huffman table (explicitly encoded) */
-            new_huff.num_rows = get_bits(gb, 4);
-            if (!new_huff.num_rows) {
-                av_log(avctx, AV_LOG_ERROR, "Empty custom Huffman table!\n");
-                return AVERROR_INVALIDDATA;
-            }
+                                    : &ivi_mb_vlc_tabs [7];
+        return 0;
+    }
 
-            for (i = 0; i < new_huff.num_rows; i++)
-                new_huff.xbits[i] = get_bits(gb, 4);
+    huff_tab->tab_sel = get_bits(gb, 3);
+    if (huff_tab->tab_sel == 7) {
+        /* custom huffman table (explicitly encoded) */
+        new_huff.num_rows = get_bits(gb, 4);
+        if (!new_huff.num_rows) {
+            av_log(avctx, AV_LOG_ERROR, "Empty custom Huffman table!\n");
+            return AVERROR_INVALIDDATA;
+        }
 
-            /* Have we got the same custom table? Rebuild if not. */
-            if (ivi_huff_desc_cmp(&new_huff, &huff_tab->cust_desc)) {
-                ivi_huff_desc_copy(&huff_tab->cust_desc, &new_huff);
+        for (i = 0; i < new_huff.num_rows; i++)
+            new_huff.xbits[i] = get_bits(gb, 4);
 
-                if (huff_tab->cust_tab.table)
-                    ff_free_vlc(&huff_tab->cust_tab);
-                result = ivi_create_huff_from_desc(&huff_tab->cust_desc,
-                        &huff_tab->cust_tab, 0);
-                if (result) {
-                    huff_tab->cust_desc.num_rows = 0; // reset faulty description
-                    av_log(avctx, AV_LOG_ERROR,
-                           "Error while initializing custom vlc table!\n");
-                    return result;
-                }
+        /* Have we got the same custom table? Rebuild if not. */
+        if (ivi_huff_desc_cmp(&new_huff, &huff_tab->cust_desc)) {
+            ivi_huff_desc_copy(&huff_tab->cust_desc, &new_huff);
+
+            if (huff_tab->cust_tab.table)
+                ff_free_vlc(&huff_tab->cust_tab);
+            result = ivi_create_huff_from_desc(&huff_tab->cust_desc,
+                    &huff_tab->cust_tab, 0);
+            if (result) {
+                // reset faulty description
+                huff_tab->cust_desc.num_rows = 0;
+                av_log(avctx, AV_LOG_ERROR,
+                       "Error while initializing custom vlc table!\n");
+                return result;
             }
-            huff_tab->tab = &huff_tab->cust_tab;
-        } else {
-            /* select one of predefined tables */
-            huff_tab->tab = (which_tab) ? &ivi_blk_vlc_tabs[huff_tab->tab_sel]
-                : &ivi_mb_vlc_tabs [huff_tab->tab_sel];
         }
+        huff_tab->tab = &huff_tab->cust_tab;
+    } else {
+        /* select one of predefined tables */
+        huff_tab->tab = (which_tab) ? &ivi_blk_vlc_tabs[huff_tab->tab_sel]
+            : &ivi_mb_vlc_tabs [huff_tab->tab_sel];
     }
 
     return 0;