libhb: re-enable vobsub in mp4 support

git-svn-id: svn://svn.handbrake.fr/HandBrake/trunk@6401 b64f7644-9d1e-0410-96f1-a4d463321fa5

1 files changed, 142 insertions, 0 deletions

diff --git a/contrib/ffmpeg/A07-movenc-Add-dvd-subtitle-support.patch b/contrib/ffmpeg/A07-movenc-Add-dvd-subtitle-support.patch
new file mode 100644
index 000000000..9f604ecb9
--- /dev/null
+++ b/contrib/ffmpeg/A07-movenc-Add-dvd-subtitle-support.patch
@@ -0,0 +1,142 @@
+From 6adf3bc42e36242d487636786e995149bbb849fe Mon Sep 17 00:00:00 2001
+From: John Stebbins <[email protected]>
+Date: Tue, 18 Mar 2014 08:50:25 -0600
+Subject: [PATCH] movenc: Add dvd subtitle support
+
+Signed-off-by: Luca Barbato <[email protected]>
+---
+ libavformat/movenc.c | 83 ++++++++++++++++++++++++++++++++++++++++++++++++----
+ 1 file changed, 78 insertions(+), 5 deletions(-)
+
+diff --git a/libavformat/movenc.c b/libavformat/movenc.c
+index 0c688f6..a6a55d5 100644
+--- a/libavformat/movenc.c
++++ b/libavformat/movenc.c
+@@ -309,7 +309,9 @@ static int mov_write_esds_tag(AVIOContext *pb, MOVTrack *track) // Basic
+ 
+     // the following fields is made of 6 bits to identify the streamtype (4 for video, 5 for audio)
+     // plus 1 bit to indicate upstream and 1 bit set to 1 (reserved)
+-    if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
++    if (track->enc->codec_id == AV_CODEC_ID_DVD_SUBTITLE)
++        avio_w8(pb, (0x38 << 2) | 1); // flags (= NeroSubpicStream)
++    else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)
+         avio_w8(pb, 0x15); // flags (= Audiostream)
+     else
+         avio_w8(pb, 0x11); // flags (= Visualstream)
+@@ -760,6 +762,7 @@ static int mp4_get_codec_tag(AVFormatContext *s, MOVTrack *track)
+     else if (track->enc->codec_id == AV_CODEC_ID_VC1)       tag = MKTAG('v','c','-','1');
+     else if (track->enc->codec_type == AVMEDIA_TYPE_VIDEO)  tag = MKTAG('m','p','4','v');
+     else if (track->enc->codec_type == AVMEDIA_TYPE_AUDIO)  tag = MKTAG('m','p','4','a');
++    else if (track->enc->codec_id == AV_CODEC_ID_DVD_SUBTITLE)  tag = MKTAG('m','p','4','s');
+ 
+     return tag;
+ }
+@@ -976,7 +979,9 @@ static int mov_write_subtitle_tag(AVIOContext *pb, MOVTrack *track)
+     avio_wb16(pb, 0);    /* Reserved */
+     avio_wb16(pb, 1);    /* Data-reference index */
+ 
+-    if (track->enc->extradata_size)
++    if (track->enc->codec_id == AV_CODEC_ID_DVD_SUBTITLE)
++        mov_write_esds_tag(pb, track);
++    else if (track->enc->extradata_size)
+         avio_write(pb, track->enc->extradata, track->enc->extradata_size);
+ 
+     return update_size(pb, pos);
+@@ -1308,6 +1313,7 @@ static int mov_write_hdlr_tag(AVIOContext *pb, MOVTrack *track)
+             descr     = "SoundHandler";
+         } else if (track->enc->codec_type == AVMEDIA_TYPE_SUBTITLE) {
+             if (track->tag == MKTAG('t','x','3','g')) hdlr_type = "sbtl";
++            if (track->tag == MKTAG('m','p','4','s')) hdlr_type = "subp";
+             else                                      hdlr_type = "text";
+             descr = "SubtitleHandler";
+         } else if (track->enc->codec_tag == MKTAG('r','t','p',' ')) {
+@@ -3178,6 +3184,69 @@ static void mov_free(AVFormatContext *s)
+     av_freep(&mov->tracks);
+ }
+ 
++static uint32_t rgb_to_yuv(uint32_t rgb)
++{
++    uint8_t r, g, b;
++    int y, cb, cr;
++
++    r = (rgb >> 16) & 0xFF;
++    g = (rgb >>  8) & 0xFF;
++    b = (rgb      ) & 0xFF;
++
++    y  = av_clip_uint8( 16. +  0.257 * r + 0.504 * g + 0.098 * b);
++    cb = av_clip_uint8(128. -  0.148 * r - 0.291 * g + 0.439 * b);
++    cr = av_clip_uint8(128. +  0.439 * r - 0.368 * g - 0.071 * b);
++
++    return (y << 16) | (cr << 8) | cb;
++}
++
++static int mov_create_dvd_sub_decoder_specific_info(MOVTrack *track,
++                                                    AVStream *st)
++{
++    int i, width = 720, height = 480;
++    int have_palette = 0, have_size = 0;
++    uint32_t palette[16];
++    char *cur = st->codec->extradata;
++
++    while (cur && *cur) {
++        if (strncmp("palette:", cur, 8) == 0) {
++            int i, count;
++            count = sscanf(cur + 8,
++                "%06x, %06x, %06x, %06x, %06x, %06x, %06x, %06x, "
++                "%06x, %06x, %06x, %06x, %06x, %06x, %06x, %06x",
++                &palette[ 0], &palette[ 1], &palette[ 2], &palette[ 3],
++                &palette[ 4], &palette[ 5], &palette[ 6], &palette[ 7],
++                &palette[ 8], &palette[ 9], &palette[10], &palette[11],
++                &palette[12], &palette[13], &palette[14], &palette[15]);
++
++            for (i = 0; i < count; i++) {
++                palette[i] = rgb_to_yuv(palette[i]);
++            }
++            have_palette = 1;
++        } else if (!strncmp("size:", cur, 5)) {
++            sscanf(cur + 5, "%dx%d", &width, &height);
++            have_size = 1;
++        }
++        if (have_palette && have_size)
++            break;
++        cur += strcspn(cur, "\n\r");
++        cur += strspn(cur, "\n\r");
++    }
++    if (have_palette) {
++        track->vos_data = av_malloc(16*4);
++        if (!track->vos_data)
++            return AVERROR(ENOMEM);
++        for (i = 0; i < 16; i++) {
++            AV_WB32(track->vos_data + i * 4, palette[i]);
++        }
++        track->vos_len = 16 * 4;
++    }
++    st->codec->width = width;
++    st->codec->height = track->height = height;
++
++    return 0;
++}
++
+ static int mov_write_header(AVFormatContext *s)
+ {
+     AVIOContext *pb = s->pb;
+@@ -3334,9 +3403,13 @@ static int mov_write_header(AVFormatContext *s)
+ 
+         /* copy extradata if it exists */
+         if (st->codec->extradata_size) {
+-            track->vos_len  = st->codec->extradata_size;
+-            track->vos_data = av_malloc(track->vos_len);
+-            memcpy(track->vos_data, st->codec->extradata, track->vos_len);
++            if (st->codec->codec_id == AV_CODEC_ID_DVD_SUBTITLE)
++                mov_create_dvd_sub_decoder_specific_info(track, st);
++            else {
++                track->vos_len  = st->codec->extradata_size;
++                track->vos_data = av_malloc(track->vos_len);
++                memcpy(track->vos_data, st->codec->extradata, track->vos_len);
++            }
+         }
+     }
+ 
+-- 
+1.9.3
+