fix building w/libav-10

https://wiki.libav.org/Migration/10

--- a/filter/filter_resample.c
+++ b/filter/filter_resample.c
@@ -37,6 +37,7 @@
 #include "libtc/optstr.h"
 #include "libtc/tcavcodec.h"
 #include "libtc/tcmodule-plugin.h"
+#include <libavresample/avresample.h>
 
 
 typedef struct {
@@ -45,7 +46,7 @@ typedef struct {
 
     int bytes_per_sample;
 
-    ReSampleContext *resample_ctx;
+    AVAudioResampleContext *resample_ctx;
 } ResamplePrivateData;
 
 static const char resample_help[] = ""
--- a/import/probe_ffmpeg.c
+++ b/import/probe_ffmpeg.c
@@ -51,8 +51,8 @@ static void translate_info(const AVFormatContext *ctx, ProbeInfo *info)
             info->bitrate = st->codec->bit_rate / 1000;
             info->width = st->codec->width;
             info->height = st->codec->height;
-            if (st->r_frame_rate.num > 0 && st->r_frame_rate.den > 0) {
-                info->fps = av_q2d(st->r_frame_rate);
+            if (st->avg_frame_rate.num > 0 && st->avg_frame_rate.den > 0) {
+                info->fps = av_q2d(st->avg_frame_rate);
             } else {
                 /* watch out here */
                 info->fps = 1.0/av_q2d(st->codec->time_base);