avfilter: Constify all AVFilters

[ffmpeg] / libavfilter / vf_signature.c

diff --git a/libavfilter/vf_signature.c b/libavfilter/vf_signature.c
index d07b213f3125a0b5689393a6351586b543a92bd7..a345ad6ebdfb1578d181a5df09d5f5641d5d0b30 100644 (file)
--- a/libavfilter/vf_signature.c
+++ b/libavfilter/vf_signature.c
@@ -132,8 +132,9 @@ static uint64_t get_block_sum(StreamContext *sc, uint64_t intpic[32][32], const
     return sum;
 }
 
-static int cmp(const uint64_t *a, const uint64_t *b)
+static int cmp(const void *x, const void *y)
 {
+    const uint64_t *a = x, *b = y;
     return *a < *b ? -1 : ( *a > *b ? 1 : 0 );
 }
 
@@ -291,7 +292,7 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *picref)
         }
 
         /* get threshold */
-        qsort(sortsignature, elemcat->elem_count, sizeof(uint64_t), (void*) cmp);
+        qsort(sortsignature, elemcat->elem_count, sizeof(uint64_t), cmp);
         th = sortsignature[(int) (elemcat->elem_count*0.333)];
 
         /* ternarize */
@@ -317,7 +318,7 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *picref)
     }
 
     /* confidence */
-    qsort(conflist, DIFFELEM_SIZE, sizeof(uint64_t), (void*) cmp);
+    qsort(conflist, DIFFELEM_SIZE, sizeof(uint64_t), cmp);
     fs->confidence = FFMIN(conflist[DIFFELEM_SIZE/2], 255);
 
     /* coarsesignature */
@@ -559,9 +560,8 @@ static int binary_export(AVFilterContext *ctx, StreamContext *sc, const char* fi
         }
     }
 
-    avpriv_align_put_bits(&buf);
     flush_put_bits(&buf);
-    fwrite(buffer, 1, put_bits_count(&buf)/8, f);
+    fwrite(buffer, 1, put_bytes_output(&buf), f);
     fclose(f);
     av_freep(&buffer);
     return 0;
@@ -664,6 +664,10 @@ static av_cold int init(AVFilterContext *ctx)
 
         if (!pad.name)
             return AVERROR(ENOMEM);
+        if ((ret = ff_insert_inpad(ctx, i, &pad)) < 0) {
+            av_freep(&pad.name);
+            return ret;
+        }
 
         sc = &(sic->streamcontexts[i]);
 
@@ -680,11 +684,6 @@ static av_cold int init(AVFilterContext *ctx)
         sc->coarseend = sc->coarsesiglist;
         sc->coarsecount = 0;
         sc->midcoarse = 0;
-
-        if ((ret = ff_insert_inpad(ctx, i, &pad)) < 0) {
-            av_freep(&pad.name);
-            return ret;
-        }
     }
 
     /* check filename */
@@ -731,6 +730,8 @@ static av_cold void uninit(AVFilterContext *ctx)
         }
         av_freep(&sic->streamcontexts);
     }
+    for (unsigned i = 0; i < ctx->nb_inputs; i++)
+        av_freep(&ctx->input_pads[i].name);
 }
 
 static int config_output(AVFilterLink *outlink)
@@ -757,7 +758,7 @@ static const AVFilterPad signature_outputs[] = {
     { NULL }
 };
 
-AVFilter ff_vf_signature = {
+const AVFilter ff_vf_signature = {
     .name          = "signature",
     .description   = NULL_IF_CONFIG_SMALL("Calculate the MPEG-7 video signature"),
     .priv_size     = sizeof(SignatureContext),