From 99e22b7859177f6d3ed6121040924b337dce5497 Mon Sep 17 00:00:00 2001
From: Miles Gould <miles@assyrian.org.uk>
Date: Mon, 21 Apr 2014 14:46:22 +0100
Subject: [PATCH] mov: Emit the correct tags for clcp tracks

Bug-Id: 664

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
---
 libavformat/movenc.c | 30 ++++++++++++++++++++++++------
 1 file changed, 24 insertions(+), 6 deletions(-)

diff --git a/libavformat/movenc.c b/libavformat/movenc.c
index 8b53232ba1..73fbddc451 100644
--- a/libavformat/movenc.c
+++ b/libavformat/movenc.c
@@ -1295,6 +1295,12 @@ static int mov_write_vmhd_tag(AVIOContext *pb)
     return 0x14;
 }
 
+static int is_clcp_track(MOVTrack *track)
+{
+    return track->tag == MKTAG('c','7','0','8') ||
+           track->tag == MKTAG('c','6','0','8');
+}
+
 static int mov_write_hdlr_tag(AVIOContext *pb, MOVTrack *track)
 {
     const char *hdlr, *descr = NULL, *hdlr_type = NULL;
@@ -1317,6 +1323,8 @@ static int mov_write_hdlr_tag(AVIOContext *pb, MOVTrack *track)
                 hdlr_type = "sbtl";
             } else if (track->tag == MKTAG('m','p','4','s')) {
                 hdlr_type = "subp";
+            } else if (is_clcp_track(track)) {
+                hdlr_type = "clcp";
             } else {
                 hdlr_type = "text";
             }
@@ -1379,8 +1387,11 @@ static int mov_write_minf_tag(AVIOContext *pb, MOVTrack *track)
     else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
         mov_write_smhd_tag(pb);
     else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE) {
-        if (track->tag == MKTAG('t','e','x','t')) mov_write_gmhd_tag(pb);
-        else                                      mov_write_nmhd_tag(pb);
+        if (track->tag == MKTAG('t','e','x','t') || is_clcp_track(track)) {
+            mov_write_gmhd_tag(pb);
+        } else {
+            mov_write_nmhd_tag(pb);
+        }
     } else if (track->tag == MKTAG('r','t','p',' ')) {
         mov_write_hmhd_tag(pb);
     } else if (track->tag == MKTAG('t','m','c','d')) {
@@ -1648,7 +1659,8 @@ static int mov_write_trak_tag(AVIOContext *pb, MOVMuxContext *mov,
     ffio_wfourcc(pb, "trak");
     mov_write_tkhd_tag(pb, track, st);
     if (track->mode == MODE_PSP || track->flags & MOV_TRACK_CTTS ||
-        (track->entry && track->cluster[0].dts)) {
+        (track->entry && track->cluster[0].dts) ||
+        is_clcp_track(track)) {
         if (!(mov->flags & FF_MOV_FLAG_FRAGMENT))
             mov_write_edts_tag(pb, track);  // PSP Movies require edts box
     }
@@ -1659,10 +1671,16 @@ static int mov_write_trak_tag(AVIOContext *pb, MOVMuxContext *mov,
         mov_write_uuid_tag_psp(pb, track); // PSP Movies require this uuid box
     if (track->tag == MKTAG('r','t','p',' '))
         mov_write_udta_sdp(pb, track);
-    if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO && track->mode == MODE_MOV) {
-        double sample_aspect_ratio = av_q2d(st->sample_aspect_ratio);
-        if (0.0 != sample_aspect_ratio && 1.0 != sample_aspect_ratio)
+    if (track->mode == MODE_MOV) {
+        if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO) {
+            double sample_aspect_ratio = av_q2d(st->sample_aspect_ratio);
+            if ((0.0 != sample_aspect_ratio && 1.0 != sample_aspect_ratio)) {
+                mov_write_tapt_tag(pb, track);
+            }
+        }
+        if (is_clcp_track(track)) {
             mov_write_tapt_tag(pb, track);
+        }
     }
     return update_size(pb, pos);
 }