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theorapay: handle streamheaders as well

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This commit is contained in:
Wim Taymans 2013-06-28 12:08:19 +02:00
parent 3169432ed4
commit cdc66462ce
1 changed files with 92 additions and 19 deletions
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91
gst/rtp/gstrtptheorapay.c
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@ -87,6 +87,10 @@ static GstFlowReturn gst_rtp_theora_pay_handle_buffer (GstRTPBasePayload * pad,
static gboolean gst_rtp_theora_pay_sink_event (GstRTPBasePayload * payload,
GstEvent * event);
static gboolean gst_rtp_theora_pay_parse_id (GstRTPBasePayload * basepayload,
guint8 * data, guint size);
static gboolean gst_rtp_theora_pay_finish_headers (GstRTPBasePayload *
basepayload);
static void gst_rtp_theora_pay_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec);
@ -168,12 +172,83 @@ static gboolean
gst_rtp_theora_pay_setcaps (GstRTPBasePayload * basepayload, GstCaps * caps)
{
GstRtpTheoraPay *rtptheorapay;
GstStructure *s;
const GValue *array;
gint asize, i;
GstBuffer *buf;
GstMapInfo map;
rtptheorapay = GST_RTP_THEORA_PAY (basepayload);
s = gst_caps_get_structure (caps, 0);
rtptheorapay->need_headers = TRUE;
if ((array = gst_structure_get_value (s, "streamheader")) == NULL)
goto done;
if (G_VALUE_TYPE (array) != GST_TYPE_ARRAY)
goto done;
if ((asize = gst_value_array_get_size (array)) < 3)
goto done;
for (i = 0; i < asize; i++) {
const GValue *value;
value = gst_value_array_get_value (array, i);
if ((buf = gst_value_get_buffer (value)) == NULL)
goto null_buffer;
gst_buffer_map (buf, &map, GST_MAP_READ);
/* no data packets allowed */
if (map.size < 1)
goto invalid_streamheader;
/* we need packets with id 0x80, 0x81, 0x82 */
if (map.data[0] != 0x80 + i)
goto invalid_streamheader;
if (i == 0) {
/* identification, we need to parse this in order to get the clock rate. */
if (G_UNLIKELY (!gst_rtp_theora_pay_parse_id (basepayload, map.data,
map.size)))
goto parse_id_failed;
}
GST_DEBUG_OBJECT (rtptheorapay, "collecting header %d", i);
rtptheorapay->headers =
g_list_append (rtptheorapay->headers, gst_buffer_ref (buf));
gst_buffer_unmap (buf, &map);
}
if (!gst_rtp_theora_pay_finish_headers (basepayload))
goto finish_failed;
done:
return TRUE;
/* ERRORS */
null_buffer:
{
GST_WARNING_OBJECT (rtptheorapay, "streamheader with null buffer received");
return FALSE;
}
invalid_streamheader:
{
GST_WARNING_OBJECT (rtptheorapay, "unable to parse initial header");
gst_buffer_unmap (buf, &map);
return FALSE;
}
parse_id_failed:
{
GST_WARNING_OBJECT (rtptheorapay, "unable to parse initial header");
gst_buffer_unmap (buf, &map);
return FALSE;
}
finish_failed:
{
GST_WARNING_OBJECT (rtptheorapay, "unable to finish headers");
return FALSE;
}
}
static void
@ -420,13 +495,14 @@ gst_rtp_theora_pay_finish_headers (GstRTPBasePayload * basepayload)
/* copy header data */
for (walk = rtptheorapay->headers; walk; walk = g_list_next (walk)) {
GstBuffer *buf = GST_BUFFER_CAST (walk->data);
GstMapInfo map;
gst_buffer_map (buf, &map, GST_MAP_READ);
memcpy (data, map.data, map.size);
gst_buffer_unmap (buf, &map);
data += map.size;
gst_buffer_extract (buf, 0, data, gst_buffer_get_size (buf));
data += gst_buffer_get_size (buf);
gst_buffer_unref (buf);
}
g_list_free (rtptheorapay->headers);
rtptheorapay->headers = NULL;
rtptheorapay->need_headers = FALSE;
/* serialize to base64 */
configuration = g_base64_encode (config, configlen);
@ -688,7 +764,6 @@ gst_rtp_theora_pay_handle_buffer (GstRTPBasePayload * basepayload,
keyframe = ((data[0] & 0x40) == 0);
}
if (rtptheorapay->need_headers) {
/* we need to collect the headers and construct a config string from them */
if (TDT != 0) {
GST_DEBUG_OBJECT (rtptheorapay, "collecting header, buffer %p", buffer);
@ -697,11 +772,9 @@ gst_rtp_theora_pay_handle_buffer (GstRTPBasePayload * basepayload,
rtptheorapay->headers = g_list_append (rtptheorapay->headers, buffer);
ret = GST_FLOW_OK;
goto done;
} else {
} else if (rtptheorapay->headers) {
if (!gst_rtp_theora_pay_finish_headers (basepayload))
goto header_error;
rtptheorapay->need_headers = FALSE;
}
}
/* there is a config request, see if we need to insert it */