diff options
Diffstat (limited to 'gst/realmedia/rmutils.c')
| -rw-r--r-- | gst/realmedia/rmutils.c | 17 |
1 files changed, 11 insertions, 6 deletions
diff --git a/gst/realmedia/rmutils.c b/gst/realmedia/rmutils.c index 6ae68786..7c4a3412 100644 --- a/gst/realmedia/rmutils.c +++ b/gst/realmedia/rmutils.c @@ -125,13 +125,15 @@ gst_rm_utils_read_tags (const guint8 * data, guint datalen, GstBuffer * gst_rm_utils_descramble_dnet_buffer (GstBuffer * buf) { - guint8 *data, *end, tmp; + guint8 *base, *data, *end, tmp; + gsize size; buf = gst_buffer_make_writable (buf); /* dnet = byte-order swapped AC3 */ - data = GST_BUFFER_DATA (buf); - end = GST_BUFFER_DATA (buf) + GST_BUFFER_SIZE (buf); + base = gst_buffer_map (buf, &size, NULL, GST_MAP_READWRITE); + data = base; + end = data + size; while ((data + 1) < end) { /* byte-swap */ tmp = data[0]; @@ -139,6 +141,7 @@ gst_rm_utils_descramble_dnet_buffer (GstBuffer * buf) data[1] = tmp; data += sizeof (guint16); } + gst_buffer_unmap (buf, base, size); return buf; } @@ -221,10 +224,10 @@ GstBuffer * gst_rm_utils_descramble_sipr_buffer (GstBuffer * buf) { guint8 *data; - guint size; + gsize size; gint n, bs; - size = GST_BUFFER_SIZE (buf); + size = gst_buffer_get_size (buf); /* split the packet in 96 blocks of nibbles */ bs = size * 2 / 96; @@ -233,7 +236,7 @@ gst_rm_utils_descramble_sipr_buffer (GstBuffer * buf) buf = gst_buffer_make_writable (buf); - data = GST_BUFFER_DATA (buf); + data = gst_buffer_map (buf, NULL, NULL, GST_MAP_WRITE); /* we need to perform 38 swaps on the blocks */ for (n = 0; n < 38; n++) { @@ -246,6 +249,8 @@ gst_rm_utils_descramble_sipr_buffer (GstBuffer * buf) /* swap the blocks */ gst_rm_utils_swap_nibbles (data, idx1, idx2, bs); } + gst_buffer_unmap (buf, data, size); + return buf; } |