Factorize some code into the new function ff_toupper4().

Patch by Francesco Lavra, francescolavra interfree it

Originally committed as revision 23158 to svn://svn.ffmpeg.org/ffmpeg/trunk

3 files changed, 14 insertions, 9 deletions

diff --git a/libavcodec/internal.h b/libavcodec/internal.h
index 97c0dcb3a6..67d5be7c3b 100644
--- a/libavcodec/internal.h
+++ b/libavcodec/internal.h
@@ -48,4 +48,6 @@ AVHWAccel *ff_find_hwaccel(enum CodecID codec_id, enum PixelFormat pix_fmt);
  */
 int ff_match_2uint16(const uint16_t (*tab)[2], int size, int a, int b);
 
+unsigned int ff_toupper4(unsigned int x);
+
 #endif /* AVCODEC_INTERNAL_H */
diff --git a/libavcodec/mpegvideo.c b/libavcodec/mpegvideo.c
index e11fee8ffc..b5631cffc3 100644
--- a/libavcodec/mpegvideo.c
+++ b/libavcodec/mpegvideo.c
@@ -30,6 +30,7 @@
 #include "libavutil/intmath.h"
 #include "avcodec.h"
 #include "dsputil.h"
+#include "internal.h"
 #include "mpegvideo.h"
 #include "mpegvideo_common.h"
 #include "mjpegenc.h"
@@ -530,15 +531,9 @@ av_cold int MPV_common_init(MpegEncContext *s)
     yc_size = y_size + 2 * c_size;
 
     /* convert fourcc to upper case */
-    s->codec_tag=          toupper( s->avctx->codec_tag     &0xFF)
-                        + (toupper((s->avctx->codec_tag>>8 )&0xFF)<<8 )
-                        + (toupper((s->avctx->codec_tag>>16)&0xFF)<<16)
-                        + (toupper((s->avctx->codec_tag>>24)&0xFF)<<24);
-
-    s->stream_codec_tag=          toupper( s->avctx->stream_codec_tag     &0xFF)
-                               + (toupper((s->avctx->stream_codec_tag>>8 )&0xFF)<<8 )
-                               + (toupper((s->avctx->stream_codec_tag>>16)&0xFF)<<16)
-                               + (toupper((s->avctx->stream_codec_tag>>24)&0xFF)<<24);
+    s->codec_tag = ff_toupper4(s->avctx->codec_tag);
+
+    s->stream_codec_tag = ff_toupper4(s->avctx->stream_codec_tag);
 
     s->avctx->coded_frame= (AVFrame*)&s->current_picture;
 
diff --git a/libavcodec/utils.c b/libavcodec/utils.c
index 3badebe9bd..56d4dbd1dd 100644
--- a/libavcodec/utils.c
+++ b/libavcodec/utils.c
@@ -1294,3 +1294,11 @@ int av_lockmgr_register(int (*cb)(void **mutex, enum AVLockOp op))
     }
     return 0;
 }
+
+unsigned int ff_toupper4(unsigned int x)
+{
+    return     toupper( x     &0xFF)
+            + (toupper((x>>8 )&0xFF)<<8 )
+            + (toupper((x>>16)&0xFF)<<16)
+            + (toupper((x>>24)&0xFF)<<24);
+}