@@ -423,6 +423,12 @@ int opt_loglevel(const char *opt, const char *arg)

     return 0;

 }

+int opt_codec_debug(const char *opt, const char *arg)

+{

+    av_log_set_level(AV_LOG_DEBUG);

+    return opt_default(opt, arg);

+}

+

 int opt_timelimit(const char *opt, const char *arg)

 {

 #if HAVE_SETRLIMIT

@@ -76,6 +76,8 @@ int opt_default(const char *opt, const char *arg);

  */

 int opt_loglevel(const char *opt, const char *arg);

+int opt_codec_debug(const char *opt, const char *arg);

+

 /**

  * Limit the execution time.

  */

@@ -13,3 +13,4 @@

     { "sample_fmts", OPT_EXIT, {.func_arg = show_sample_fmts }, "show available audio sample formats" },

     { "loglevel", HAS_ARG, {(void*)opt_loglevel}, "set libav* logging level", "loglevel" },

     { "v", HAS_ARG, {(void*)opt_loglevel}, "set libav* logging level", "loglevel" },

+    { "debug", HAS_ARG, {(void*)opt_codec_debug}, "set debug flags", "flags" },