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From 9393762b54c17abd736f8d5dd96cd22c334989da Mon Sep 17 00:00:00 2001
From: John Stebbins <jstebbins.hb@gmail.com>
Date: Fri, 10 May 2013 09:19:16 -0700
Subject: [PATCH 9/9] movenc: Make chapter track QuickTime compatible
QuickTime requires that the stsd.text box be completely filled in.
---
libavformat/movenc.c | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/libavformat/movenc.c b/libavformat/movenc.c
index bc77a6f..96adfd7 100644
--- a/libavformat/movenc.c
+++ b/libavformat/movenc.c
@@ -2982,12 +2982,17 @@ static void mov_create_chapter_track(AVFormatContext *s, int tracknum)
MOVTrack *track = &mov->tracks[tracknum];
AVPacket pkt = { .stream_index = tracknum, .flags = AV_PKT_FLAG_KEY };
int i, len;
+ // These properties are required to make QT recognize the chapter track
+ uint8_t chapter_properties[43] = {0, 0, 0, 0, 0, 0, 0, 1,};
track->mode = mov->mode;
track->tag = MKTAG('t','e','x','t');
track->timescale = MOV_TIMESCALE;
track->enc = avcodec_alloc_context3(NULL);
track->enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
+ track->enc->extradata = av_malloc(43);
+ track->enc->extradata_size = 43;
+ memcpy(track->enc->extradata, chapter_properties, 43);
for (i = 0; i < s->nb_chapters; i++) {
AVChapter *c = s->chapters[i];
@@ -3443,8 +3448,10 @@ static int mov_write_trailer(AVFormatContext *s)
mov_write_mfra_tag(pb, mov);
}
- if (mov->chapter_track)
+ if (mov->chapter_track) {
+ av_free(mov->tracks[mov->chapter_track].enc->extradata);
av_freep(&mov->tracks[mov->chapter_track].enc);
+ }
for (i=0; i<mov->nb_streams; i++) {
if (mov->tracks[i].tag == MKTAG('r','t','p',' '))
--
1.8.1.4
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