libhb: add experimental avformat muxer for mkv and mp4

git-svn-id: svn://svn.handbrake.fr/HandBrake/trunk@5620 b64f7644-9d1e-0410-96f1-a4d463321fa5

1 files changed, 142 insertions, 0 deletions

diff --git a/contrib/ffmpeg/A10-mp4-track-enable.patch b/contrib/ffmpeg/A10-mp4-track-enable.patch
new file mode 100644
index 000000000..282326157
--- /dev/null
+++ b/contrib/ffmpeg/A10-mp4-track-enable.patch
@@ -0,0 +1,142 @@
+From 25a0ee27bb5d2bb46781ea4a2a3c88581ad75fde Mon Sep 17 00:00:00 2001
+From: John Stebbins <[email protected]>
+Date: Fri, 10 May 2013 09:16:08 -0700
+Subject: [PATCH 8/9] movenc: Make tkhd "enabled" flag QuickTime compatible
+
+QuickTime will play multiple audio tracks concurrently if this flag is
+set for multiple audio tracks.  And if no subtitle track has this flag
+set QuickTime will show no subtitles in the subtitle menu.
+---
+ libavformat/mov.c    |  4 +++-
+ libavformat/movenc.c | 60 +++++++++++++++++++++++++++++++++++++++++++++++++++-
+ libavformat/movenc.h |  1 +
+ 3 files changed, 63 insertions(+), 2 deletions(-)
+
+diff --git a/libavformat/mov.c b/libavformat/mov.c
+index 7fe0548..cb0e395 100644
+--- a/libavformat/mov.c
++++ b/libavformat/mov.c
+@@ -2129,6 +2129,7 @@ static int mov_read_tkhd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
+     AVStream *st;
+     MOVStreamContext *sc;
+     int version;
++    int flags;
+ 
+     if (c->fc->nb_streams < 1)
+         return 0;
+@@ -2136,13 +2137,14 @@ static int mov_read_tkhd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
+     sc = st->priv_data;
+ 
+     version = avio_r8(pb);
+-    avio_rb24(pb); /* flags */
++    flags = avio_rb24(pb); /* flags */
+     /*
+     MOV_TRACK_ENABLED 0x0001
+     MOV_TRACK_IN_MOVIE 0x0002
+     MOV_TRACK_IN_PREVIEW 0x0004
+     MOV_TRACK_IN_POSTER 0x0008
+     */
++    st->disposition |= (flags & 0x1) ? AV_DISPOSITION_DEFAULT : 0;
+ 
+     if (version == 1) {
+         avio_rb64(pb);
+diff --git a/libavformat/movenc.c b/libavformat/movenc.c
+index 2f6c003..bc77a6f 100644
+--- a/libavformat/movenc.c
++++ b/libavformat/movenc.c
+@@ -1387,7 +1387,13 @@ static int mov_write_tkhd_tag(AVIOContext *pb, MOVTrack *track, AVStream *st)
+     (version == 1) ? avio_wb32(pb, 104) : avio_wb32(pb, 92); /* size */
+     ffio_wfourcc(pb, "tkhd");
+     avio_w8(pb, version);
+-    avio_wb24(pb, 0xf); /* flags (track enabled) */
++    avio_wb24(pb, (track->flags & MOV_TRACK_ENABLED) ? 0x3 : 0x2); /* flags */
++    /*
++    MOV_TRACK_ENABLED 0x0001
++    MOV_TRACK_IN_MOVIE 0x0002
++    MOV_TRACK_IN_PREVIEW 0x0004
++    MOV_TRACK_IN_POSTER 0x0008
++    */
+     if (version == 1) {
+         avio_wb64(pb, track->time);
+         avio_wb64(pb, track->time);
+@@ -3003,6 +3009,56 @@ static void mov_create_chapter_track(AVFormatContext *s, int tracknum)
+     }
+ }
+ 
++// st->disposition controls the "enabled" flag in the tkhd tag.
++// QuickTime will not play a track if it is not enabled.  So make sure
++// that one track of each type (audio, video, subtitle) is enabled.
++//
++// Subtitles are special.  For audio and video, setting "enabled" also
++// makes the track "default" (i.e. it is rendered when played). For
++// subtitles, an "enabled" subtitle is not rendered by default, but
++// if no subtitle is enabled, the subtitle menu in QuickTime will be
++// empty!
++static void enable_tracks(AVFormatContext *s)
++{
++    MOVMuxContext *mov = s->priv_data;
++    int i;
++    uint8_t enabled[AVMEDIA_TYPE_NB];
++    int first[AVMEDIA_TYPE_NB];
++
++    for (i = 0; i < AVMEDIA_TYPE_NB; i++) {
++        enabled[i] = 0;
++        first[i] = -1;
++    }
++
++    for (i = 0; i < s->nb_streams; i++) {
++        AVStream *st = s->streams[i];
++
++        if (st->codec->codec_type <= AVMEDIA_TYPE_UNKNOWN ||
++            st->codec->codec_type >= AVMEDIA_TYPE_NB)
++            continue;
++
++        if (first[st->codec->codec_type] < 0)
++            first[st->codec->codec_type] = i;
++        if (st->disposition & AV_DISPOSITION_DEFAULT) {
++            mov->tracks[i].flags |= MOV_TRACK_ENABLED;
++            enabled[st->codec->codec_type] = 1;
++        }
++    }
++
++    for (i = 0; i < AVMEDIA_TYPE_NB; i++) {
++        switch (i) {
++        case AVMEDIA_TYPE_VIDEO:
++        case AVMEDIA_TYPE_AUDIO:
++        case AVMEDIA_TYPE_SUBTITLE:
++            if (!enabled[i] && first[i] >= 0)
++                mov->tracks[first[i]].flags |= MOV_TRACK_ENABLED;
++            break;
++        default:
++            break;
++        }
++    }
++}
++
+ static int mov_write_header(AVFormatContext *s)
+ {
+     AVIOContext *pb = s->pb;
+@@ -3156,6 +3212,8 @@ static int mov_write_header(AVFormatContext *s)
+         }
+     }
+ 
++    enable_tracks(s);
++
+     if (mov->mode == MODE_ISM) {
+         /* If no fragmentation options have been set, set a default. */
+         if (!(mov->flags & (FF_MOV_FLAG_FRAG_KEYFRAME |
+diff --git a/libavformat/movenc.h b/libavformat/movenc.h
+index 3ea0dd5..9bb8a78 100644
+--- a/libavformat/movenc.h
++++ b/libavformat/movenc.h
+@@ -84,6 +84,7 @@ typedef struct MOVIndex {
+     int         has_keyframes;
+ #define MOV_TRACK_CTTS         0x0001
+ #define MOV_TRACK_STPS         0x0002
++#define MOV_TRACK_ENABLED      0x0004
+     uint32_t    flags;
+     int         language;
+     int         track_id;
+-- 
+1.8.1.4
+