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avidemux: parse fuji strd

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We can get maker, model and capture date from this chunk.
Fixes #636143
This commit is contained in:
Stefan Sauer 2014-01-05 22:41:24 +01:00
parent 1be2922802
commit 5384da2a1f
1 changed files with 62 additions and 1 deletions
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63
gst/avi/gstavidemux.c
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@ -124,6 +124,7 @@ static void gst_avi_demux_get_buffer_info (GstAviDemux * avi,
GstClockTime * ts_end, guint64 * offset, guint64 * offset_end);
static void gst_avi_demux_parse_idit (GstAviDemux * avi, GstBuffer * buf);
static void gst_avi_demux_parse_strd (GstAviDemux * avi, GstBuffer * buf);
/* GObject methods */
@ -2197,7 +2198,10 @@ gst_avi_demux_parse_stream (GstAviDemux * avi, GstBuffer * buf)
if (stream->initdata)
gst_buffer_unref (stream->initdata);
stream->initdata = sub;
sub = NULL;
if (sub != NULL) {
gst_avi_demux_parse_strd (avi, sub);
sub = NULL;
}
break;
case GST_RIFF_TAG_strn:
g_free (stream->name);
@ -3721,6 +3725,63 @@ parse_tag_value (GstAviDemux * avi, GstTagList * taglist, const gchar * type,
}
}
static void
gst_avi_demux_parse_strd (GstAviDemux * avi, GstBuffer * buf)
{
GstMapInfo map;
guint32 tag;
gst_buffer_map (buf, &map, GST_MAP_READ);
if (map.size > 4) {
guint8 *ptr = map.data;
gsize left = map.size;
/* parsing based on
* http://www.eden-foundation.org/products/code/film_date_stamp/index.html
*/
tag = GST_READ_UINT32_LE (ptr);
if ((tag == GST_MAKE_FOURCC ('A', 'V', 'I', 'F')) && (map.size > 98)) {
gsize sub_size;
ptr += 98;
left -= 98;
if (!memcmp (ptr, "FUJIFILM", 8)) {
GST_MEMDUMP_OBJECT (avi, "fujifim tag", ptr, 48);
ptr += 10;
left -= 10;
sub_size = 0;
while (ptr[sub_size] && sub_size < left)
sub_size++;
if (avi->globaltags == NULL)
avi->globaltags = gst_tag_list_new_empty ();
gst_tag_list_add (avi->globaltags, GST_TAG_MERGE_APPEND,
GST_TAG_DEVICE_MANUFACTURER, "FUJIFILM",
GST_TAG_DEVICE_MODEL, ptr, NULL);
while (ptr[sub_size] == '\0' && sub_size < left)
sub_size++;
ptr += sub_size;
left -= sub_size;
sub_size = 0;
while (ptr[sub_size] && sub_size < left)
sub_size++;
if (ptr[4] == ':')
ptr[4] = '-';
if (ptr[7] == ':')
ptr[7] = '-';
parse_tag_value (avi, avi->globaltags, GST_TAG_DATE_TIME, ptr,
sub_size);
}
}
}
gst_buffer_unmap (buf, &map);
}
/*
* gst_avi_demux_parse_ncdt:
* @element: caller element (used for debugging/error).