indeo4/5: remove constant parameter num_bands from wavelet recomposition

Fixes bogus uninitialized value compiler and coverity warnings.

libavcodec/ivi_common.c

@@ -808,9 +808,9 @@ int ff_ivi_decode_frame(AVCodecContext *avctx, void *data, int *data_size,
 
     if (ctx->is_scalable) {
         if (avctx->codec_id == AV_CODEC_ID_INDEO4)
-            ff_ivi_recompose_haar(&ctx->planes[0], ctx->frame.data[0], ctx->frame.linesize[0], 4);
+            ff_ivi_recompose_haar(&ctx->planes[0], ctx->frame.data[0], ctx->frame.linesize[0]);
         else
-            ff_ivi_recompose53   (&ctx->planes[0], ctx->frame.data[0], ctx->frame.linesize[0], 4);
+            ff_ivi_recompose53   (&ctx->planes[0], ctx->frame.data[0], ctx->frame.linesize[0]);
     } else {
         ff_ivi_output_plane(&ctx->planes[0], ctx->frame.data[0], ctx->frame.linesize[0]);
     }

libavcodec/ivi_dsp.c

@@ -33,7 +33,7 @@
 #include "ivi_dsp.h"
 
 void ff_ivi_recompose53(const IVIPlaneDesc *plane, uint8_t *dst,
-                        const int dst_pitch, const int num_bands)
+                        const int dst_pitch)
 {
     int             x, y, indx;
     int32_t         p0, p1, p2, p3, tmp0, tmp1, tmp2;
@@ -41,6 +41,7 @@ void ff_ivi_recompose53(const IVIPlaneDesc *plane, uint8_t *dst,
     int32_t         b3_1, b3_2, b3_3, b3_4, b3_5, b3_6, b3_7, b3_8, b3_9;
     int32_t         pitch, back_pitch;
     const IDWTELEM *b0_ptr, *b1_ptr, *b2_ptr, *b3_ptr;
+    const int       num_bands = 4;
 
     /* all bands should have the same pitch */
     pitch = plane->bands[0].pitch;
@@ -179,7 +180,7 @@ void ff_ivi_recompose53(const IVIPlaneDesc *plane, uint8_t *dst,
 }
 
 void ff_ivi_recompose_haar(const IVIPlaneDesc *plane, uint8_t *dst,
-                           const int dst_pitch, const int num_bands)
+                           const int dst_pitch)
 {
     int             x, y, indx, b0, b1, b2, b3, p0, p1, p2, p3;
     const IDWTELEM *b0_ptr, *b1_ptr, *b2_ptr, *b3_ptr;

libavcodec/ivi_dsp.h

@@ -38,10 +38,9 @@
  *  @param[in]   plane        pointer to the descriptor of the plane being processed
  *  @param[out]  dst          pointer to the destination buffer
  *  @param[in]   dst_pitch    pitch of the destination buffer
- *  @param[in]   num_bands    number of wavelet bands to be processed
  */
 void ff_ivi_recompose53(const IVIPlaneDesc *plane, uint8_t *dst,
-                        const int dst_pitch, const int num_bands);
+                        const int dst_pitch);
 
 /**
  *  Haar wavelet recomposition filter for Indeo 4
@@ -49,10 +48,9 @@ void ff_ivi_recompose53(const IVIPlaneDesc *plane, uint8_t *dst,
  *  @param[in]  plane        pointer to the descriptor of the plane being processed
  *  @param[out] dst          pointer to the destination buffer
  *  @param[in]  dst_pitch    pitch of the destination buffer
- *  @param[in]  num_bands    number of wavelet bands to be processed
  */
 void ff_ivi_recompose_haar(const IVIPlaneDesc *plane, uint8_t *dst,
-                           const int dst_pitch, const int num_bands);
+                           const int dst_pitch);
 
 /**
  *  two-dimensional inverse Haar 8x8 transform for Indeo 4