ffplay: always show stats at all log levels if requested by user

Since 3b491c5a50, stats would be hidden if loglevel was lower than
info, even if -stats was set.

Fixes #6962

doc/ffplay.texi

@@ -133,8 +133,9 @@ This option has been deprecated in favor of private options, try -pixel_format.
 @item -stats
 Print several playback statistics, in particular show the stream
 duration, the codec parameters, the current position in the stream and
-the audio/video synchronisation drift. It is on by default, to
-explicitly disable it you need to specify @code{-nostats}.
+the audio/video synchronisation drift. It is shown by default, unless the
+log level is lower than @code{info}. Its display can be forced by manually
+specifying this option. To disable it, you need to specify @code{-nostats}.
 
 @item -fast
 Non-spec-compliant optimizations.

fftools/ffplay.c

@@ -40,6 +40,7 @@
 #include "libavutil/samplefmt.h"
 #include "libavutil/avassert.h"
 #include "libavutil/time.h"
+#include "libavutil/bprint.h"
 #include "libavformat/avformat.h"
 #include "libavdevice/avdevice.h"
 #include "libswscale/swscale.h"
@@ -326,7 +327,7 @@ static int display_disable;
 static int borderless;
 static int alwaysontop;
 static int startup_volume = 100;
-static int show_status = 1;
+static int show_status = -1;
 static int av_sync_type = AV_SYNC_AUDIO_MASTER;
 static int64_t start_time = AV_NOPTS_VALUE;
 static int64_t duration = AV_NOPTS_VALUE;
@@ -1692,6 +1693,7 @@ display:
     }
     is->force_refresh = 0;
     if (show_status) {
+        AVBPrint buf;
         static int64_t last_time;
         int64_t cur_time;
         int aqsize, vqsize, sqsize;
@@ -1715,7 +1717,9 @@ display:
                 av_diff = get_master_clock(is) - get_clock(&is->vidclk);
             else if (is->audio_st)
                 av_diff = get_master_clock(is) - get_clock(&is->audclk);
-            av_log(NULL, AV_LOG_INFO,
+
+            av_bprint_init(&buf, 0, AV_BPRINT_SIZE_AUTOMATIC);
+            av_bprintf(&buf,
                       "%7.2f %s:%7.3f fd=%4d aq=%5dKB vq=%5dKB sq=%5dB f=%"PRId64"/%"PRId64"   \r",
                       get_master_clock(is),
                       (is->audio_st && is->video_st) ? "A-V" : (is->video_st ? "M-V" : (is->audio_st ? "M-A" : "   ")),
@@ -1726,7 +1730,15 @@ display:
                       sqsize,
                       is->video_st ? is->viddec.avctx->pts_correction_num_faulty_dts : 0,
                       is->video_st ? is->viddec.avctx->pts_correction_num_faulty_pts : 0);
+
+            if (show_status == 1 && AV_LOG_INFO > av_log_get_level())
+                fprintf(stderr, "%s", buf.str);
+            else
+                av_log(NULL, AV_LOG_INFO, "%s", buf.str);
+
             fflush(stdout);
+            av_bprint_finalize(&buf, NULL);
+
             last_time = cur_time;
         }
     }