Print the MediaFormats we get in the debug logs

sys/androidmedia/gstamc.c

@@ -83,6 +83,7 @@ static struct
   jclass klass;
   jmethodID create_audio_format;
   jmethodID create_video_format;
+  jmethodID to_string;
   jmethodID contains_key;
   jmethodID get_float;
   jmethodID set_float;
@@ -866,6 +867,44 @@ gst_amc_format_free (GstAmcFormat * format)
   g_slice_free (GstAmcFormat, format);
 }
 
+gchar *
+gst_amc_format_to_string (GstAmcFormat * format)
+{
+  JNIEnv *env;
+  jstring v_str = NULL;
+  const gchar *v = NULL;
+  gchar *ret = NULL;
+
+  g_return_val_if_fail (format != NULL, FALSE);
+
+  env = gst_amc_get_jni_env ();
+
+  v_str =
+      (*env)->CallObjectMethod (env, format->object, media_format.to_string);
+  if ((*env)->ExceptionCheck (env)) {
+    GST_ERROR ("Failed to call Java method");
+    (*env)->ExceptionClear (env);
+    goto done;
+  }
+
+  v = (*env)->GetStringUTFChars (env, v_str, NULL);
+  if (!v) {
+    GST_ERROR ("Failed to convert string to UTF8");
+    (*env)->ExceptionClear (env);
+    goto done;
+  }
+
+  ret = g_strdup (v);
+
+done:
+  if (v)
+    (*env)->ReleaseStringUTFChars (env, v_str, v);
+  if (v_str)
+    (*env)->DeleteLocalRef (env, v_str);
+
+  return ret;
+}
+
 gboolean
 gst_amc_format_contains_key (GstAmcFormat * format, const gchar * key)
 {
@@ -1375,6 +1414,9 @@ get_java_classes (void)
   media_format.create_video_format =
       (*env)->GetStaticMethodID (env, media_format.klass, "createVideoFormat",
       "(Ljava/lang/String;II)Landroid/media/MediaFormat;");
+  media_format.to_string =
+      (*env)->GetMethodID (env, media_format.klass, "toString",
+      "()Ljava/lang/String;");
   media_format.contains_key =
       (*env)->GetMethodID (env, media_format.klass, "containsKey",
       "(Ljava/lang/String;)Z");

sys/androidmedia/gstamc.h

@@ -105,6 +105,8 @@ GstAmcFormat * gst_amc_format_new_audio (const gchar *mime, gint sample_rate, gi
 GstAmcFormat * gst_amc_format_new_video (const gchar *mime, gint width, gint height);
 void gst_amc_format_free (GstAmcFormat * format);
 
+gchar * gst_amc_format_to_string (GstAmcFormat * format);
+
 gboolean gst_amc_format_contains_key (GstAmcFormat *format, const gchar *key);
 
 gboolean gst_amc_format_get_float (GstAmcFormat *format, const gchar *key, gfloat *value);

sys/androidmedia/gstamcvideodec.c

@@ -741,6 +741,7 @@ retry:
       }
       case INFO_OUTPUT_FORMAT_CHANGED:{
         GstAmcFormat *format;
+        gchar *format_string;
 
         GST_DEBUG_OBJECT (self, "Output format has changed");
 
@@ -748,6 +749,10 @@ retry:
         if (!format)
           goto format_error;
 
+        format_string = gst_amc_format_to_string (format);
+        GST_DEBUG_OBJECT (self, "Got new output format: %s", format_string);
+        g_free (format_string);
+
         if (!gst_amc_video_dec_set_src_caps (self, format)) {
           gst_amc_format_free (format);
           goto format_error;
@@ -1025,6 +1030,7 @@ gst_amc_video_dec_set_format (GstVideoDecoder * decoder,
   const gchar *mime;
   gboolean is_format_change = FALSE;
   gboolean needs_disable = FALSE;
+  gchar *format_string;
 
   self = GST_AMC_VIDEO_DEC (decoder);
 
@@ -1078,6 +1084,10 @@ gst_amc_video_dec_set_format (GstVideoDecoder * decoder,
   if (self->codec_data)
     gst_amc_format_set_buffer (format, "csd-0", self->codec_data);
 
+  format_string = gst_amc_format_to_string (format);
+  GST_DEBUG_OBJECT (self, "Configuring codec with format: %s", format_string);
+  g_free (format_string);
+
   /* FIXME: Flags? */
   if (!gst_amc_codec_configure (self->codec, format, 0)) {
     GST_ERROR_OBJECT (self, "Failed to configure codec");