ffmpegmux: Use information from AVOutputFormat to expose more muxers.

AVOutputFormat does *NOT* contain the full list of codecs a muxer can handle,
but does contain the recommended audio and video codecs. Therefore we use that
information to expose more muxers, until AVOutputFormat contains a list of
*ALL* compatible codecs.

ext/ffmpeg/gstffmpegcodecmap.c

@@ -2344,8 +2344,17 @@ gst_ffmpeg_formatid_to_caps (const gchar * format_name)
 
 gboolean
 gst_ffmpeg_formatid_get_codecids (const gchar * format_name,
-    enum CodecID ** video_codec_list, enum CodecID ** audio_codec_list)
+    enum CodecID ** video_codec_list, enum CodecID ** audio_codec_list,
+    AVOutputFormat * plugin)
 {
+  static enum CodecID tmp_vlist[] = {
+    CODEC_ID_NONE,
+    CODEC_ID_NONE
+  };
+  static enum CodecID tmp_alist[] = {
+    CODEC_ID_NONE,
+    CODEC_ID_NONE
+  };
 
   GST_LOG ("format_name : %s", format_name);
 
@@ -2471,6 +2480,13 @@ gst_ffmpeg_formatid_get_codecids (const gchar * format_name,
     };
     *video_codec_list = gif_image_list;
     *audio_codec_list = NULL;
+  } else if ((plugin->audio_codec != CODEC_ID_NONE) ||
+      (plugin->video_codec != CODEC_ID_NONE)) {
+    tmp_vlist[0] = plugin->video_codec;
+    tmp_alist[0] = plugin->audio_codec;
+
+    *video_codec_list = tmp_vlist;
+    *audio_codec_list = tmp_alist;
   } else {
     GST_LOG ("Format %s not found", format_name);
     return FALSE;

ext/ffmpeg/gstffmpegcodecmap.h

@@ -110,7 +110,8 @@ gst_ffmpeg_formatid_to_caps (const gchar *format_name);
 gboolean
 gst_ffmpeg_formatid_get_codecids (const gchar *format_name,
                                   enum CodecID ** video_codec_list,
-                                  enum CodecID ** audio_codec_list);
+                                  enum CodecID ** audio_codec_list,
+				  AVOutputFormat * plugin);
 
 /*
  * Since FFMpeg has such really cool and useful descriptions

ext/ffmpeg/gstffmpegmux.c

@@ -703,6 +703,27 @@ gst_ffmpegmux_register (GstPlugin * plugin)
     GstCaps *srccaps, *audiosinkcaps, *videosinkcaps;
     enum CodecID *video_ids = NULL, *audio_ids = NULL;
 
+    if ((!strncmp (in_plugin->name, "u16", 3)) ||
+        (!strncmp (in_plugin->name, "s16", 3)) ||
+        (!strncmp (in_plugin->name, "u24", 3)) ||
+        (!strncmp (in_plugin->name, "s24", 3)) ||
+        (!strncmp (in_plugin->name, "u8", 2)) ||
+        (!strncmp (in_plugin->name, "s8", 2)) ||
+        (!strncmp (in_plugin->name, "u32", 3)) ||
+        (!strncmp (in_plugin->name, "s32", 3)) ||
+        (!strncmp (in_plugin->name, "f32", 3)) ||
+        (!strncmp (in_plugin->name, "f64", 3)) ||
+        (!strncmp (in_plugin->name, "raw", 3)) ||
+        (!strncmp (in_plugin->name, "crc", 3)) ||
+        (!strncmp (in_plugin->name, "null", 4)) ||
+        (!strncmp (in_plugin->name, "gif", 3)) ||
+        (!strncmp (in_plugin->name, "frame", 5)) ||
+        (!strncmp (in_plugin->name, "image", 5))
+        ) {
+      GST_LOG ("Ignoring muxer %s", in_plugin->name);
+      goto next;
+    }
+
     /* Try to find the caps that belongs here */
     srccaps = gst_ffmpeg_formatid_to_caps (in_plugin->name);
     if (!srccaps) {
@@ -710,7 +731,7 @@ gst_ffmpegmux_register (GstPlugin * plugin)
       goto next;
     }
     if (!gst_ffmpeg_formatid_get_codecids (in_plugin->name,
-            &video_ids, &audio_ids)) {
+            &video_ids, &audio_ids, in_plugin)) {
       gst_caps_unref (srccaps);
       GST_WARNING
           ("Couldn't get sink caps for muxer %s. Most likely because no input format mapping exists.",