From f9cefbfec4d7bfec44991d4372aad4fc1b3167a5 Mon Sep 17 00:00:00 2001
From: Aman Gupta <aman@tmm1.net>
Date: Mon, 21 Dec 2015 17:35:15 -0800
Subject: vd_lavc: feed A53_CC side data packets into the demuxer for eia_608
 decoding

---
 demux/demux.c | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

(limited to 'demux/demux.c')

diff --git a/demux/demux.c b/demux/demux.c
index e286bf0e32..af0a93c03d 100644
--- a/demux/demux.c
+++ b/demux/demux.c
@@ -160,6 +160,10 @@ struct demux_stream {
     int64_t last_pos;
     struct demux_packet *head;
     struct demux_packet *tail;
+
+    // for closed captions (demuxer_feed_caption)
+    struct sh_stream *cc;
+
 };
 
 // Return "a", or if that is NOPTS, return "def".
@@ -361,6 +365,27 @@ const char *stream_type_name(enum stream_type type)
     }
 }
 
+void demuxer_feed_caption(struct sh_stream *stream, demux_packet_t *dp)
+{
+    struct demuxer *demuxer = stream->ds->in->d_thread;
+    struct sh_stream *sh = stream->ds->cc;
+
+    if (!sh) {
+        sh = demux_alloc_sh_stream(STREAM_SUB);
+        if (!sh)
+            return;
+        sh->codec->codec = "eia_608";
+        stream->ds->cc = sh;
+        demux_add_sh_stream(demuxer, sh);
+    }
+
+    if (demux_stream_is_selected(sh)) {
+        dp->pts = MP_ADD_PTS(dp->pts, -stream->ds->in->ts_offset);
+        dp->dts = MP_ADD_PTS(dp->dts, -stream->ds->in->ts_offset);
+        demux_add_packet(sh, dp);
+    }
+}
+
 void demux_add_packet(struct sh_stream *stream, demux_packet_t *dp)
 {
     struct demux_stream *ds = stream ? stream->ds : NULL;
-- 
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