From 779ad060a4e7cd33782571485e4990a1efc3524b Mon Sep 17 00:00:00 2001
From: Jan Schmidt <jan@centricular.com>
Date: Sat, 5 Sep 2015 23:38:44 +1000
Subject: [PATCH] faac: Add bitrate info to the tags output.

Makes it possible for muxers to know the target bitrate as soon
as encoding starts, which flvmux now uses.
---
 ext/faac/gstfaac.c | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/ext/faac/gstfaac.c b/ext/faac/gstfaac.c
index 9adc11fb83..a4a7c36ae9 100644
--- a/ext/faac/gstfaac.c
+++ b/ext/faac/gstfaac.c
@@ -341,6 +341,22 @@ gst_faac_enc_generate_sink_caps (void)
   return caps;
 }
 
+static void
+gst_faac_set_tags (GstFaac * faac)
+{
+  GstTagList *taglist;
+
+  /* create a taglist and add a bitrate tag to it */
+  taglist = gst_tag_list_new_empty ();
+  gst_tag_list_add (taglist, GST_TAG_MERGE_REPLACE,
+      GST_TAG_BITRATE, faac->bitrate, NULL);
+
+  gst_audio_encoder_merge_tags (GST_AUDIO_ENCODER (faac), taglist,
+      GST_TAG_MERGE_REPLACE);
+
+  gst_tag_list_unref (taglist);
+}
+
 static gboolean
 gst_faac_set_format (GstAudioEncoder * enc, GstAudioInfo * info)
 {
@@ -375,6 +391,8 @@ gst_faac_set_format (GstAudioEncoder * enc, GstAudioInfo * info)
   if (!result)
     goto done;
 
+  gst_faac_set_tags (faac);
+
   /* report needs to base class */
   gst_audio_encoder_set_frame_samples_min (enc, faac->samples);
   gst_audio_encoder_set_frame_samples_max (enc, faac->samples);