cmdutils: get rid of dummy contexts for examining AVOptions.

Replace it with newly introduced libavutil API.

1 files changed, 7 insertions, 3 deletions

diff --git a/avconv.c b/avconv.c
index f5f4dea36f..b2dce53fff 100644
--- a/avconv.c
+++ b/avconv.c
@@ -3782,6 +3782,7 @@ static void show_help(void)
     AVCodec *c;
     AVOutputFormat *oformat = NULL;
     AVInputFormat  *iformat = NULL;
+    const AVClass *class;
 
     av_log_set_callback(log_callback_help);
     show_usage();
@@ -3809,7 +3810,8 @@ static void show_help(void)
                       OPT_GRAB,
                       OPT_GRAB);
     printf("\n");
-    av_opt_show2(avcodec_opts[0], NULL, AV_OPT_FLAG_ENCODING_PARAM|AV_OPT_FLAG_DECODING_PARAM, 0);
+    class = avcodec_get_class();
+    av_opt_show2(&class, NULL, AV_OPT_FLAG_ENCODING_PARAM|AV_OPT_FLAG_DECODING_PARAM, 0);
     printf("\n");
 
     /* individual codec options */
@@ -3821,7 +3823,8 @@ static void show_help(void)
         }
     }
 
-    av_opt_show2(avformat_opts, NULL, AV_OPT_FLAG_ENCODING_PARAM|AV_OPT_FLAG_DECODING_PARAM, 0);
+    class = avformat_get_class();
+    av_opt_show2(&class, NULL, AV_OPT_FLAG_ENCODING_PARAM|AV_OPT_FLAG_DECODING_PARAM, 0);
     printf("\n");
 
     /* individual muxer options */
@@ -3840,7 +3843,8 @@ static void show_help(void)
         }
     }
 
-    av_opt_show2(sws_opts, NULL, AV_OPT_FLAG_ENCODING_PARAM|AV_OPT_FLAG_DECODING_PARAM, 0);
+    class = sws_get_class();
+    av_opt_show2(&class, NULL, AV_OPT_FLAG_ENCODING_PARAM|AV_OPT_FLAG_DECODING_PARAM, 0);
 }
 
 static int opt_target(const char *opt, const char *arg)