h264: Get rid of unnecessary casts

This gets rid of a number of warnings about casts discarding
qualifiers from the pointer target, present since 7ebfb466.
Signed-off-by: Martin Storsjö <martin@martin.st>

libavcodec/h264_mb_template.c

@@ -102,7 +102,7 @@ static av_noinline void FUNC(hl_decode_mb)(H264Context *h)
             const int bit_depth = h->sps.bit_depth_luma;
             int j;
             GetBitContext gb;
-            init_get_bits(&gb, (uint8_t *)h->intra_pcm_ptr,
+            init_get_bits(&gb, h->intra_pcm_ptr,
                           ff_h264_mb_sizes[h->sps.chroma_format_idc] * bit_depth);
 
             for (i = 0; i < 16; i++) {
@@ -137,7 +137,7 @@ static av_noinline void FUNC(hl_decode_mb)(H264Context *h)
             }
         } else {
             for (i = 0; i < 16; i++)
-                memcpy(dest_y + i * linesize, (uint8_t *)h->intra_pcm_ptr + i * 16, 16);
+                memcpy(dest_y + i * linesize, h->intra_pcm_ptr + i * 16, 16);
             if (SIMPLE || !CONFIG_GRAY || !(h->flags & CODEC_FLAG_GRAY)) {
                 if (!h->sps.chroma_format_idc) {
                     for (i = 0; i < block_h; i++) {
@@ -145,8 +145,8 @@ static av_noinline void FUNC(hl_decode_mb)(H264Context *h)
                         memset(dest_cr + i * uvlinesize, 128, 8);
                     }
                 } else {
-                    uint8_t *src_cb = (uint8_t *)h->intra_pcm_ptr + 256;
-                    uint8_t *src_cr = (uint8_t *)h->intra_pcm_ptr + 256 + block_h * 8;
+                    const uint8_t *src_cb = h->intra_pcm_ptr + 256;
+                    const uint8_t *src_cr = h->intra_pcm_ptr + 256 + block_h * 8;
                     for (i = 0; i < block_h; i++) {
                         memcpy(dest_cb + i * uvlinesize, src_cb + i * 8, 8);
                         memcpy(dest_cr + i * uvlinesize, src_cr + i * 8, 8);
@@ -328,7 +328,7 @@ static av_noinline void FUNC(hl_decode_mb_444)(H264Context *h)
         if (PIXEL_SHIFT) {
             const int bit_depth = h->sps.bit_depth_luma;
             GetBitContext gb;
-            init_get_bits(&gb, (uint8_t *)h->intra_pcm_ptr, 768 * bit_depth);
+            init_get_bits(&gb, h->intra_pcm_ptr, 768 * bit_depth);
 
             for (p = 0; p < plane_count; p++)
                 for (i = 0; i < 16; i++) {
@@ -340,7 +340,7 @@ static av_noinline void FUNC(hl_decode_mb_444)(H264Context *h)
             for (p = 0; p < plane_count; p++)
                 for (i = 0; i < 16; i++)
                     memcpy(dest[p] + i * linesize,
-                           (uint8_t *)h->intra_pcm_ptr + p * 256 + i * 16, 16);
+                           h->intra_pcm_ptr + p * 256 + i * 16, 16);
         }
     } else {
         if (IS_INTRA(mb_type)) {