avcodec/mpegutils: Constify ff_print_debug_info2, ff_draw_horiz_band

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>

libavcodec/mpegutils.c

@@ -49,7 +49,7 @@ static int add_mb(AVMotionVector *mb, uint32_t mb_type,
 }
 
 void ff_draw_horiz_band(AVCodecContext *avctx,
-                        AVFrame *cur, AVFrame *last,
+                        const AVFrame *cur, const AVFrame *last,
                         int y, int h, int picture_structure,
                         int first_field, int low_delay)
 {
@@ -68,7 +68,7 @@ void ff_draw_horiz_band(AVCodecContext *avctx,
         return;
 
     if (avctx->draw_horiz_band) {
-        AVFrame *src;
+        const AVFrame *src;
         int offset[AV_NUM_DATA_POINTERS];
         int i;
 
@@ -153,9 +153,10 @@ static char get_interlacement_char(int mb_type)
         return ' ';
 }
 
-void ff_print_debug_info2(AVCodecContext *avctx, AVFrame *pict, uint8_t *mbskip_table,
-                         uint32_t *mbtype_table, int8_t *qscale_table, int16_t (*motion_val[2])[2],
-                         int mb_width, int mb_height, int mb_stride, int quarter_sample)
+void ff_print_debug_info2(AVCodecContext *avctx, AVFrame *pict,
+                          const uint8_t *mbskip_table, const uint32_t *mbtype_table,
+                          const int8_t *qscale_table, int16_t (*const motion_val[2])[2],
+                          int mb_width, int mb_height, int mb_stride, int quarter_sample)
 {
     if ((avctx->export_side_data & AV_CODEC_EXPORT_DATA_MVS) && mbtype_table && motion_val[0]) {
         const int shift = 1 + quarter_sample;

libavcodec/mpegutils.h

@@ -127,15 +127,16 @@ enum OutputFormat {
  *
  * @param h is the normal height, this will be reduced automatically if needed
  */
-void ff_draw_horiz_band(AVCodecContext *avctx, AVFrame *cur, AVFrame *last,
+void ff_draw_horiz_band(AVCodecContext *avctx, const AVFrame *cur, const AVFrame *last,
                         int y, int h, int picture_structure, int first_field,
                         int low_delay);
 
 /**
  * Print debugging info for the given picture.
  */
-void ff_print_debug_info2(AVCodecContext *avctx, AVFrame *pict, uint8_t *mbskip_table,
-                         uint32_t *mbtype_table, int8_t *qscale_table, int16_t (*motion_val[2])[2],
-                         int mb_width, int mb_height, int mb_stride, int quarter_sample);
+void ff_print_debug_info2(AVCodecContext *avctx, AVFrame *pict,
+                          const uint8_t *mbskip_table, const uint32_t *mbtype_table,
+                          const int8_t *qscale_table, int16_t (*const motion_val[2])[2],
+                          int mb_width, int mb_height, int mb_stride, int quarter_sample);
 
 #endif /* AVCODEC_MPEGUTILS_H */