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qtdemux: Sanitize unknown codec caps

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We might have non-printable characters in the unknown fourcc, replace
them with '_', in the same way we do it for unknown tags.
This commit is contained in:
Edward Hervey 2016-12-01 11:23:02 +01:00 committed by Edward Hervey
parent 9a4b1e9cdc
commit 50bb6630f5
1 changed files with 21 additions and 18 deletions
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39
gst/isomp4/qtdemux.c
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@ -13215,6 +13215,24 @@ gst_qtdemux_handle_esds (GstQTDemux * qtdemux, QtDemuxStream * stream,
}
static inline GstCaps *
_get_unknown_codec_name (const gchar * type, guint32 fourcc)
{
GstCaps *caps;
guint i;
char *s, fourstr[5];
g_snprintf (fourstr, 5, "%" GST_FOURCC_FORMAT, GST_FOURCC_ARGS (fourcc));
for (i = 0; i < 4; i++) {
if (!g_ascii_isalnum (fourstr[i]))
fourstr[i] = '_';
}
s = g_strdup_printf ("%s/x-gst-fourcc-%s", type, g_strstrip (fourstr));
caps = gst_caps_new_empty_simple (s);
g_free (s);
return caps;
}
#define _codec(name) \
do { \
if (codec_name) { \
@ -13617,12 +13635,7 @@ qtdemux_video_caps (GstQTDemux * qtdemux, QtDemuxStream * stream,
case GST_MAKE_FOURCC ('k', 'p', 'c', 'd'):
default:
{
char *s, fourstr[5];
g_snprintf (fourstr, 5, "%" GST_FOURCC_FORMAT, GST_FOURCC_ARGS (fourcc));
s = g_strdup_printf ("video/x-gst-fourcc-%s", g_strstrip (fourstr));
caps = gst_caps_new_empty_simple (s);
g_free (s);
caps = _get_unknown_codec_name ("video", fourcc);
break;
}
}
@ -13938,12 +13951,7 @@ qtdemux_audio_caps (GstQTDemux * qtdemux, QtDemuxStream * stream,
/* ? */
default:
{
char *s, fourstr[5];
g_snprintf (fourstr, 5, "%" GST_FOURCC_FORMAT, GST_FOURCC_ARGS (fourcc));
s = g_strdup_printf ("audio/x-gst-fourcc-%s", g_strstrip (fourstr));
caps = gst_caps_new_empty_simple (s);
g_free (s);
caps = _get_unknown_codec_name ("audio", fourcc);
break;
}
}
@ -13999,12 +14007,7 @@ qtdemux_sub_caps (GstQTDemux * qtdemux, QtDemuxStream * stream,
break;
default:
{
char *s, fourstr[5];
g_snprintf (fourstr, 5, "%" GST_FOURCC_FORMAT, GST_FOURCC_ARGS (fourcc));
s = g_strdup_printf ("text/x-gst-fourcc-%s", g_strstrip (fourstr));
caps = gst_caps_new_empty_simple (s);
g_free (s);
caps = _get_unknown_codec_name ("text", fourcc);
break;
}
}