audio/fmt-conversion.c: remove unknown audio format messages

Same deal as with video/fmt-conversion.c.

audio/decode/ad_lavc.c

@@ -137,7 +137,10 @@ static int setup_format(struct dec_audio *da)
 
     // Note: invalid parameters are rejected by dec_audio.c
 
-    mp_audio_set_format(&da->decoded, af_from_avformat(lavc_context->sample_fmt));
+    int fmt = lavc_context->sample_fmt;
+    mp_audio_set_format(&da->decoded, af_from_avformat(fmt));
+    if (!da->decoded.format)
+        MP_FATAL(da, "unsupported lavc format %s", av_get_sample_fmt_name(fmt));
 
     da->decoded.rate = lavc_context->sample_rate;
     if (!da->decoded.rate && sh_audio->wf) {

audio/filter/af_lavfi.c

@@ -195,6 +195,9 @@ static int control(struct af_instance *af, int cmd, void *arg)
             mp_chmap_from_channels(&out_cm, l_out->channels);
         mp_audio_set_channels(out, &out_cm);
 
+        if (!mp_audio_config_valid(out))
+            return AF_ERROR;
+
         p->timebase_out = l_out->time_base;
 
         // Blatantly incorrect; we don't know what the filters do.

audio/fmt-conversion.c

@@ -16,7 +16,6 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */ 
 
-#include "common/msg.h"
 #include <libavutil/avutil.h>
 #include <libavutil/samplefmt.h>
 #include "format.h"
@@ -43,24 +42,18 @@ static const struct {
 
 enum AVSampleFormat af_to_avformat(int fmt)
 {
-    int i;
-    for (i = 0; audio_conversion_map[i].fmt; i++)
+    for (int i = 0; audio_conversion_map[i].fmt; i++) {
         if (audio_conversion_map[i].fmt == fmt)
-            break;
-    return audio_conversion_map[i].sample_fmt;
+            return audio_conversion_map[i].sample_fmt;
+    }
+    return 0;
 }
 
 int af_from_avformat(enum AVSampleFormat sample_fmt)
 {
-    int i;
-    for (i = 0; audio_conversion_map[i].fmt; i++)
+    for (int i = 0; audio_conversion_map[i].fmt; i++) {
         if (audio_conversion_map[i].sample_fmt == sample_fmt)
-            break;
-    int fmt = audio_conversion_map[i].fmt;
-    if (!fmt) {
-        const char *fmtname = av_get_sample_fmt_name(sample_fmt);
-        mp_msg(MSGT_GLOBAL, MSGL_ERR, "Unsupported AVSampleFormat %s (%d)\n",
-               fmtname ? fmtname : "INVALID", sample_fmt);
+            return audio_conversion_map[i].fmt;
     }
-    return fmt;
+    return 0;
 }

audio/out/ao_lavc.c

@@ -69,6 +69,11 @@ static void select_format(struct ao *ao, AVCodec *codec)
          ++sampleformat)
     {
         int fmt = af_from_avformat(*sampleformat);
+        if (!fmt) {
+            MP_WARN(ao, "unsupported lavc format %s",
+                    av_get_sample_fmt_name(*sampleformat));
+            continue;
+        }
         int score = af_format_conversion_score(fmt, ao->format);
         if (score > best_score) {
             best_score = score;