PATCH by Rik Snel <rsnel@cube.dyndns.org>

this includes the range for quantized dct coefficients in dct_quantize()  (-1023...1023)

Originally committed as revision 291 to svn://svn.ffmpeg.org/ffmpeg/trunk

diff --git a/libavcodec/i386/mpegvideo_mmx_template.c b/libavcodec/i386/mpegvideo_mmx_template.c
index ffe5c84..2b33229 100644 (file)
--- a/libavcodec/i386/mpegvideo_mmx_template.c
+++ b/libavcodec/i386/mpegvideo_mmx_template.c
@@ -48,6 +48,10 @@ static int RENAME(dct_quantize)(MpegEncContext *s,
        /* mpeg1 */
         minLevel= -255;
        maxLevel= 255;
+    }else if(s->out_format==FMT_MJPEG){
+       /* (m)jpeg */
+        minLevel= -1023;
+       maxLevel= 1023;
     }else{
        /* h263 / msmpeg4 */
         minLevel= -128;

diff --git a/libavcodec/mpegvideo.c b/libavcodec/mpegvideo.c
index f43588c..72b8058 100644 (file)
--- a/libavcodec/mpegvideo.c
+++ b/libavcodec/mpegvideo.c
@@ -1079,6 +1079,10 @@ static int dct_quantize_c(MpegEncContext *s,
        /* mpeg1 */
         minLevel= -255;
        maxLevel= 255;
+    }else if(s->out_format==FMT_MJPEG){
+       /* (m)jpeg */
+        minLevel= -1023;
+       maxLevel= 1023;
     }else{
        /* h263 / msmpeg4 */
         minLevel= -128;