avcodec: Constify AVCodecs

[ffmpeg] / libavcodec / interplayacm.c

diff --git a/libavcodec/interplayacm.c b/libavcodec/interplayacm.c
index c897e72bb629f651b89a040e9d3f20787e9deca7..9838411cdc995a074769a49031698babb56c0528 100644 (file)
--- a/libavcodec/interplayacm.c
+++ b/libavcodec/interplayacm.c
@@ -435,7 +435,8 @@ static int fill_block(InterplayACMContext *s)
 static void juggle(int *wrap_p, int *block_p, unsigned sub_len, unsigned sub_count)
 {
     unsigned i, j;
-    int *p, r0, r1, r2, r3;
+    int *p;
+    unsigned int r0, r1, r2, r3;
 
     for (i = 0; i < sub_len; i++) {
         p = block_p;
@@ -528,7 +529,7 @@ static int decode_block(InterplayACMContext *s)
 
     for (i = 1, x = -val; i <= count; i++) {
         s->midbuf[-i] = x;
-        x -= val;
+        x -= (unsigned)val;
     }
 
     ret = fill_block(s);
@@ -620,7 +621,7 @@ static av_cold int decode_close(AVCodecContext *avctx)
     return 0;
 }
 
-AVCodec ff_interplay_acm_decoder = {
+const AVCodec ff_interplay_acm_decoder = {
     .name           = "interplayacm",
     .long_name      = NULL_IF_CONFIG_SMALL("Interplay ACM"),
     .type           = AVMEDIA_TYPE_AUDIO,
@@ -629,5 +630,6 @@ AVCodec ff_interplay_acm_decoder = {
     .close          = decode_close,
     .decode         = decode_frame,
     .capabilities   = AV_CODEC_CAP_DELAY | AV_CODEC_CAP_DR1,
+    .caps_internal  = FF_CODEC_CAP_INIT_CLEANUP,
     .priv_data_size = sizeof(InterplayACMContext),
 };