[FFmpeg-soc] [soc]: r4025 - wmapro/wma3dec.c

[faust3]

Author: faust3
Date: Sun Feb  8 20:20:04 2009
New Revision: 4025

Log:
make it obvious that num_bands, cur_sfb_offsets
and cur_subwoofer_cutoff are the same for
all channels that share a subframe (offset and size)

Modified:
   wmapro/wma3dec.c

Modified: wmapro/wma3dec.c
==============================================================================
--- wmapro/wma3dec.c	Sun Feb  8 19:19:31 2009	(r4024)
+++ wmapro/wma3dec.c	Sun Feb  8 20:20:04 2009	(r4025)
@@ -1147,15 +1147,19 @@ static int wma_decode_subframe(WMA3Decod
     for(i=0;i<s->channels_for_cur_subframe;i++){
         int c = s->channel_indexes_for_cur_subframe[i];
 
-        if(s->channel[c].num_subframes <= 1){
-          s->num_bands = s->num_sfb[0];
-          s->cur_sfb_offsets = s->sfb_offsets;
-          s->cur_subwoofer_cutoff = s->subwoofer_cutoffs[0];
-        }else{
-          int frame_offset = av_log2(s->samples_per_frame/s->channel[c].subframe_len[s->channel[c].cur_subframe]);
-          s->num_bands = s->num_sfb[frame_offset];
-          s->cur_sfb_offsets = &s->sfb_offsets[MAX_BANDS * frame_offset];
-          s->cur_subwoofer_cutoff = s->subwoofer_cutoffs[frame_offset];
+        /** calculate number of scale factor bands and their offsets */
+        /** FIXME move out of the loop */
+        if(i == 0){
+            if(s->channel[c].num_subframes <= 1){
+                s->num_bands = s->num_sfb[0];
+                s->cur_sfb_offsets = s->sfb_offsets;
+                s->cur_subwoofer_cutoff = s->subwoofer_cutoffs[0];
+            }else{
+                int frame_offset = av_log2(s->samples_per_frame/s->channel[c].subframe_len[s->channel[c].cur_subframe]);
+                s->num_bands = s->num_sfb[frame_offset];
+                s->cur_sfb_offsets = &s->sfb_offsets[MAX_BANDS * frame_offset];
+                s->cur_subwoofer_cutoff = s->subwoofer_cutoffs[frame_offset];
+            }
         }
         s->channel[c].coeffs = &s->channel[c].out[s->samples_per_frame/2  + offset];
         memset(s->channel[c].coeffs,0,sizeof(float) * subframe_len);