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rtpvorbisdepay: also accept in-line configuration

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Fixes #574416 (vorbis).
This commit is contained in:
Mark Nauwelaerts 2010-04-22 12:27:35 +02:00
parent 7bc3253761
commit a344cfba27
1 changed files with 58 additions and 12 deletions
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70
gst/rtp/gstrtpvorbisdepay.c
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@ -152,25 +152,20 @@ gst_rtp_vorbis_depay_finalize (GObject * object)
G_OBJECT_CLASS (parent_class)->finalize (object);
}
/* takes ownership of confbuf */
static gboolean
gst_rtp_vorbis_depay_parse_configuration (GstRtpVorbisDepay * rtpvorbisdepay,
const gchar * configuration)
GstBuffer * confbuf)
{
GstBuffer *buf;
guint32 num_headers;
guint8 *data;
GstBuffer *confbuf;
gsize size;
guint size;
guint offset;
gint i, j;
/* deserialize base64 to buffer */
data = g_base64_decode (configuration, &size);
confbuf = gst_buffer_new ();
GST_BUFFER_DATA (confbuf) = data;
GST_BUFFER_MALLOCDATA (confbuf) = data;
GST_BUFFER_SIZE (confbuf) = size;
data = GST_BUFFER_DATA (confbuf);
size = GST_BUFFER_SIZE (confbuf);
GST_DEBUG_OBJECT (rtpvorbisdepay, "config size %" G_GSIZE_FORMAT, size);
@ -242,6 +237,8 @@ gst_rtp_vorbis_depay_parse_configuration (GstRtpVorbisDepay * rtpvorbisdepay,
"header %d, ident 0x%08x, length %u, left %" G_GSIZE_FORMAT, i, ident,
length, size);
/* FIXME check if we already got this ident */
if (size < length)
goto too_small;
@ -308,6 +305,29 @@ too_small:
}
}
static gboolean
gst_rtp_vorbis_depay_parse_inband_configuration (GstRtpVorbisDepay *
rtpvorbisdepay, guint ident, guint8 * configuration, guint size)
{
GstBuffer *confbuf;
guint8 *conf;
if (G_UNLIKELY (size < 4))
return FALSE;
/* transform inline to out-of-band and parse that one */
confbuf = gst_buffer_new_and_alloc (size + 3);
conf = GST_BUFFER_DATA (confbuf);
/* 1 header */
GST_WRITE_UINT32_BE (conf, 1);
/* write Ident */
GST_WRITE_UINT24_BE (conf + 4, ident);
/* copy remainder */
memcpy (conf + 7, configuration + 4, size - 4);
return gst_rtp_vorbis_depay_parse_configuration (rtpvorbisdepay, confbuf);
}
static gboolean
gst_rtp_vorbis_depay_setcaps (GstBaseRTPDepayload * depayload, GstCaps * caps)
{
@ -329,8 +349,18 @@ gst_rtp_vorbis_depay_setcaps (GstBaseRTPDepayload * depayload, GstCaps * caps)
/* read and parse configuration string */
configuration = gst_structure_get_string (structure, "configuration");
if (configuration) {
if (!gst_rtp_vorbis_depay_parse_configuration (rtpvorbisdepay,
configuration))
GstBuffer *confbuf;
guint8 *data;
gsize size;
/* deserialize base64 to buffer */
data = g_base64_decode (configuration, &size);
confbuf = gst_buffer_new ();
GST_BUFFER_DATA (confbuf) = data;
GST_BUFFER_MALLOCDATA (confbuf) = data;
GST_BUFFER_SIZE (confbuf) = size;
if (!gst_rtp_vorbis_depay_parse_configuration (rtpvorbisdepay, confbuf))
goto invalid_configuration;
} else {
GST_WARNING_OBJECT (rtpvorbisdepay, "no configuration specified");
@ -540,6 +570,15 @@ gst_rtp_vorbis_depay_process (GstBaseRTPDepayload * depayload, GstBuffer * buf)
if (G_UNLIKELY (length > payload_len))
goto length_short;
/* handle in-band configuration */
if (G_UNLIKELY (VDT == 1)) {
GST_DEBUG_OBJECT (rtpvorbisdepay, "in-band configuration");
if (!gst_rtp_vorbis_depay_parse_inband_configuration (rtpvorbisdepay,
ident, payload, payload_len))
goto invalid_configuration;
goto no_output;
}
/* create buffer for packet */
if (G_UNLIKELY (to_free)) {
outbuf = gst_buffer_new ();
@ -601,6 +640,13 @@ length_short:
(NULL), ("Packet contains invalid data"));
return NULL;
}
invalid_configuration:
{
/* fatal, as we otherwise risk carrying on without output */
GST_ELEMENT_ERROR (rtpvorbisdepay, STREAM, DECODE,
(NULL), ("Packet contains invalid configuration"));
return NULL;
}
}
static GstStateChangeReturn