[FFmpeg-cvslog] r18924 - in trunk/libavcodec: rtjpeg.c rtjpeg.h

[reimar]

Author: reimar
Date: Sun May 24 10:36:52 2009
New Revision: 18924

Log:
Move "block" variable in rtjpeg decoder to context to ensure sufficient alignment
for idct_put on architectures/compilers that have problems aligning on the stack.

Modified:
   trunk/libavcodec/rtjpeg.c
   trunk/libavcodec/rtjpeg.h

Modified: trunk/libavcodec/rtjpeg.c
==============================================================================
--- trunk/libavcodec/rtjpeg.c	Sun May 24 05:39:20 2009	(r18923)
+++ trunk/libavcodec/rtjpeg.c	Sun May 24 10:36:52 2009	(r18924)
@@ -98,7 +98,6 @@ static inline int get_block(GetBitContex
  */
 int rtjpeg_decode_frame_yuv420(RTJpegContext *c, AVFrame *f,
                                const uint8_t *buf, int buf_size) {
-    DECLARE_ALIGNED_16(DCTELEM, block[64]);
     GetBitContext gb;
     int w = c->w / 16, h = c->h / 16;
     int x, y;
@@ -107,6 +106,7 @@ int rtjpeg_decode_frame_yuv420(RTJpegCon
     init_get_bits(&gb, buf, buf_size * 8);
     for (y = 0; y < h; y++) {
         for (x = 0; x < w; x++) {
+            DCTELEM *block = c->block;
             if (get_block(&gb, block, c->scan, c->lquant))
                 c->dsp->idct_put(y1, f->linesize[0], block);
             y1 += 8;

Modified: trunk/libavcodec/rtjpeg.h
==============================================================================
--- trunk/libavcodec/rtjpeg.h	Sun May 24 05:39:20 2009	(r18923)
+++ trunk/libavcodec/rtjpeg.h	Sun May 24 10:36:52 2009	(r18924)
@@ -31,6 +31,7 @@ typedef struct {
     uint8_t scan[64];
     uint32_t lquant[64];
     uint32_t cquant[64];
+    DECLARE_ALIGNED_16(DCTELEM, block[64]);
 } RTJpegContext;
 
 void rtjpeg_decode_init(RTJpegContext *c, DSPContext *dsp,