avfilter: Constify all AVFilters

[ffmpeg] / libavfilter / af_volume.c

diff --git a/libavfilter/af_volume.c b/libavfilter/af_volume.c
index b106ed8cf4aa82999d1c3eeaf12aeda2b9550dae..844ddbeff73945c2b7902da2429235be52cf67fe 100644 (file)
--- a/libavfilter/af_volume.c
+++ b/libavfilter/af_volume.c
@@ -62,10 +62,11 @@ static const char *const var_names[] = {
 #define OFFSET(x) offsetof(VolumeContext, x)
 #define A AV_OPT_FLAG_AUDIO_PARAM
 #define F AV_OPT_FLAG_FILTERING_PARAM
+#define T AV_OPT_FLAG_RUNTIME_PARAM
 
 static const AVOption volume_options[] = {
     { "volume", "set volume adjustment expression",
-            OFFSET(volume_expr), AV_OPT_TYPE_STRING, { .str = "1.0" }, .flags = A|F },
+            OFFSET(volume_expr), AV_OPT_TYPE_STRING, { .str = "1.0" }, .flags = A|F|T },
     { "precision", "select mathematical precision",
             OFFSET(precision), AV_OPT_TYPE_INT, { .i64 = PRECISION_FLOAT }, PRECISION_FIXED, PRECISION_DOUBLE, A|F, "precision" },
         { "fixed",  "select 8-bit fixed-point",     0, AV_OPT_TYPE_CONST, { .i64 = PRECISION_FIXED  }, INT_MIN, INT_MAX, A|F, "precision" },
@@ -334,10 +335,6 @@ static int process_command(AVFilterContext *ctx, const char *cmd, const char *ar
     return ret;
 }
 
-#define D2TS(d)  (isnan(d) ? AV_NOPTS_VALUE : (int64_t)(d))
-#define TS2D(ts) ((ts) == AV_NOPTS_VALUE ? NAN : (double)(ts))
-#define TS2T(ts, tb) ((ts) == AV_NOPTS_VALUE ? NAN : (double)(ts)*av_q2d(tb))
-
 static int filter_frame(AVFilterLink *inlink, AVFrame *buf)
 {
     AVFilterContext *ctx = inlink->dst;
@@ -480,7 +477,7 @@ static const AVFilterPad avfilter_af_volume_outputs[] = {
     { NULL }
 };
 
-AVFilter ff_af_volume = {
+const AVFilter ff_af_volume = {
     .name           = "volume",
     .description    = NULL_IF_CONFIG_SMALL("Change input volume."),
     .query_formats  = query_formats,