diff --git a/libavformat/mpegts.c b/libavformat/mpegts.c
index e77b9a79ddf575339244ff7115bb777cb62c0941..3acca0230cd50672bdb51004f8ab7c3c3272eb92 100644
--- a/libavformat/mpegts.c
+++ b/libavformat/mpegts.c
@@ -1868,7 +1868,6 @@ static int handle_packets(MpegTSContext *ts, int nb_packets)
 
 static int mpegts_probe(AVProbeData *p)
 {
-#if 1
     const int size= p->buf_size;
     int score, fec_score, dvhs_score;
     int check_count= size / TS_FEC_PACKET_SIZE;
@@ -1887,13 +1886,6 @@ static int mpegts_probe(AVProbeData *p)
     else if(dvhs_score > score && dvhs_score > fec_score && dvhs_score > 6) return AVPROBE_SCORE_MAX + dvhs_score  - CHECK_COUNT;
     else if(                 fec_score > 6) return AVPROBE_SCORE_MAX + fec_score - CHECK_COUNT;
     else                                    return -1;
-#else
-    /* only use the extension for safer guess */
-    if (av_match_ext(p->filename, "ts"))
-        return AVPROBE_SCORE_MAX;
-    else
-        return 0;
-#endif
 }
 
 /* return the 90kHz PCR and the extension for the 27MHz PCR. return
diff --git a/tests/Makefile b/tests/Makefile
index e9d9fc578d5e5b539712c8ae659e2db3affdd1ea..53c181131c73a08ce66d98d5b8ca25588bd5e589 100644
--- a/tests/Makefile
+++ b/tests/Makefile
@@ -28,10 +28,10 @@ tests/data/asynth-%.wav: tests/audiogen$(HOSTEXESUF) | tests/data
 	$(M)./$< $@ $(subst -, ,$*)
 
 tests/data/vsynth1.yuv: tests/videogen$(HOSTEXESUF) | tests/data
-	$(M)$< >$@
+	$(M)$< $@
 
 tests/data/vsynth2.yuv: tests/rotozoom$(HOSTEXESUF) | tests/data
-	$(M)$< $(SRC_PATH)/tests/lena.pnm >$@
+	$(M)$< $(SRC_PATH)/tests/lena.pnm $@
 
 tests/data/%.sw tests/data/asynth% tests/data/vsynth%.yuv tests/vsynth%/00.pgm: TAG = GEN
 
diff --git a/tests/rotozoom.c b/tests/rotozoom.c
index 6604d92077bb90721a77b96591072cc6f005cf1b..cfa7f81369bef92f8bf576347ccdb9a6f7370dbd 100644
--- a/tests/rotozoom.c
+++ b/tests/rotozoom.c
@@ -158,15 +158,16 @@ int main(int argc, char **argv)
 {
     int w, h, i;
     char buf[1024];
+    int isdir = 0;
 
-    if (argc > 3) {
-        printf("usage: %s image.pnm [directory/]\n"
+    if (argc != 3) {
+        printf("usage: %s image.pnm file|dir\n"
                "generate a test video stream\n", argv[0]);
         return 1;
     }
 
-//     if (argc < 3)
-//         err_if(!freopen(NULL, "wb", stdout));
+    if (!freopen(argv[2], "wb", stdout))
+        isdir = 1;
 
     w = DEFAULT_WIDTH;
     h = DEFAULT_HEIGHT;
@@ -181,7 +182,7 @@ int main(int argc, char **argv)
 
     for (i = 0; i < DEFAULT_NB_PICT; i++) {
         gen_image(i, w, h);
-        if (argc > 2) {
+        if (isdir) {
             snprintf(buf, sizeof(buf), "%s%02d.pgm", argv[2], i);
             pgmyuv_save(buf, w, h, rgb_tab);
         } else {
diff --git a/tests/videogen.c b/tests/videogen.c
index 396c1e8fe622280ad934cc69e1599b4d0607730c..94e6e7759830c270841bf10264168c96421459e1 100644
--- a/tests/videogen.c
+++ b/tests/videogen.c
@@ -145,15 +145,16 @@ int main(int argc, char **argv)
 {
     int w, h, i;
     char buf[1024];
+    int isdir = 0;
 
-    if (argc > 2) {
-        printf("usage: %s [file]\n"
+    if (argc != 2) {
+        printf("usage: %s file|dir\n"
                "generate a test video stream\n", argv[0]);
         exit(1);
     }
 
-//     if (argc < 2)
-//         err_if(!freopen(NULL, "wb", stdout));
+    if (!freopen(argv[1], "wb", stdout))
+        isdir = 1;
 
     w = DEFAULT_WIDTH;
     h = DEFAULT_HEIGHT;
@@ -165,7 +166,7 @@ int main(int argc, char **argv)
 
     for (i = 0; i < DEFAULT_NB_PICT; i++) {
         gen_image(i, w, h);
-        if (argc > 1) {
+        if (isdir) {
             snprintf(buf, sizeof(buf), "%s%02d.pgm", argv[1], i);
             pgmyuv_save(buf, w, h, rgb_tab);
         } else {