From 7dfc1fdea27b3378b929188f2cd6b5b650c14671 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Reimar=20D=C3=B6ffinger?= <Reimar.Doeffinger@gmx.de>
Date: Sat, 26 Jan 2008 21:21:55 +0000
Subject: [PATCH] Extract the pure plaintext from mov text subtitles.
 Formatting information etc. is discarded.

Originally committed as revision 11625 to svn://svn.ffmpeg.org/ffmpeg/trunk
---
 libavformat/mov.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/libavformat/mov.c b/libavformat/mov.c
index 7542a01adc..6080f7d5c4 100644
--- a/libavformat/mov.c
+++ b/libavformat/mov.c
@@ -1542,6 +1542,12 @@ static int mov_read_packet(AVFormatContext *s, AVPacket *pkt)
     } else {
 #endif
         av_get_packet(s->pb, pkt, sample->size);
+        if (s->streams[sc->ffindex]->codec->codec_id == CODEC_ID_TEXT) {
+            int textlen = FFMIN(AV_RB16(pkt->data), sample->size - 2);
+            textlen = FFMAX(textlen, 0);
+            memmove(pkt->data, pkt->data + 2, textlen);
+            pkt->size = textlen;
+        }
 #ifdef CONFIG_DV_DEMUXER
         if (mov->dv_demux) {
             void *pkt_destruct_func = pkt->destruct;