mirrors/gstreamer
mirrors/gstreamer
1
1
Fork 0
mirror of https://gitlab.freedesktop.org/gstreamer/gstreamer.git synced 2024-12-28 03:00:35 +00:00
Code Issues 1 Projects Releases Wiki Activity

codecutils: improve input validation in opus header parsing

Browse source 
Invalid input files do not warrant assertions. Instead
output error messages and let the error bubble up.
This commit is contained in:
Mathieu Duponchelle 2017-11-03 17:20:44 +01:00
parent 91179622eb
commit c493c564ba
1 changed files with 48 additions and 12 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

60
gst-libs/gst/pbutils/codec-utils.c
View file

@ -1276,7 +1276,8 @@ gst_codec_utils_opus_parse_caps (GstCaps * caps,
*
* Creates Opus caps from the given parameters.
*
* Returns: The #GstCaps.
* Returns: The #GstCaps, or %NULL if the parameters would lead to
* invalid Opus caps.
*
* Since: 1.8
*/
@ -1286,7 +1287,7 @@ gst_codec_utils_opus_create_caps (guint32 rate,
guint8 channel_mapping_family,
guint8 stream_count, guint8 coupled_count, const guint8 * channel_mapping)
{
GstCaps *caps;
GstCaps *caps = NULL;
GValue va = G_VALUE_INIT;
GValue v = G_VALUE_INIT;
gint i;
@ -1295,15 +1296,30 @@ gst_codec_utils_opus_create_caps (guint32 rate,
rate = 48000;
if (channel_mapping_family == 0) {
g_return_val_if_fail (channels <= 2, NULL);
if (channels > 2) {
GST_ERROR ("Invalid channels count for channel_mapping_family 0: %d",
channels);
goto done;
}
if (stream_count > 1) {
GST_ERROR ("Invalid stream count for channel_mapping_family 0: %d",
stream_count);
goto done;
}
if (coupled_count > 1) {
GST_ERROR ("Invalid coupled count for channel_mapping_family 0: %d",
coupled_count);
goto done;
}
if (channels == 0)
channels = 2;
g_return_val_if_fail (stream_count == 0 || stream_count == 1, NULL);
if (stream_count == 0)
stream_count = 1;
g_return_val_if_fail (coupled_count == 0 || coupled_count == 1, NULL);
if (coupled_count == 0)
coupled_count = channels == 2 ? 1 : 0;
@ -1315,10 +1331,27 @@ gst_codec_utils_opus_create_caps (guint32 rate,
"coupled-count", G_TYPE_INT, coupled_count, NULL);
}
g_return_val_if_fail (channels > 0, NULL);
g_return_val_if_fail (stream_count > 0, NULL);
g_return_val_if_fail (coupled_count <= stream_count, NULL);
g_return_val_if_fail (channel_mapping != NULL, NULL);
if (channels == 0) {
GST_ERROR ("Invalid channels count: %d", channels);
goto done;
}
if (stream_count == 0) {
GST_ERROR ("Invalid stream count: %d", stream_count);
goto done;
}
if (coupled_count > stream_count) {
GST_ERROR ("Coupled count %d > stream count: %d", coupled_count,
stream_count);
goto done;
}
if (channel_mapping == NULL) {
GST_ERROR
("A non NULL channel-mapping is needed for channel_mapping_family != 0");
goto done;
}
caps = gst_caps_new_simple ("audio/x-opus",
"rate", G_TYPE_INT, rate,
@ -1338,6 +1371,7 @@ gst_codec_utils_opus_create_caps (guint32 rate,
g_value_unset (&va);
g_value_unset (&v);
done:
return caps;
}
@ -1433,9 +1467,11 @@ gst_codec_utils_opus_create_caps_from_header (GstBuffer * header,
channel_mapping, NULL, NULL))
return NULL;
caps =
gst_codec_utils_opus_create_caps (rate, channels, channel_mapping_family,
stream_count, coupled_count, channel_mapping);
if (!(caps =
gst_codec_utils_opus_create_caps (rate, channels,
channel_mapping_family, stream_count, coupled_count,
channel_mapping)))
return NULL;
if (!comments) {
GstTagList *tags = gst_tag_list_new_empty ();