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rtph264pay: extract SPS and PPS from property provided parameter set

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... so it can also be regularly inserted into the stream if so configured.

Fixes #617164.
This commit is contained in:
Mark Nauwelaerts 2010-05-10 11:14:39 +02:00
parent 3fdd51952b
commit 4cff2e2c67
1 changed files with 57 additions and 0 deletions
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57
gst/rtp/gstrtph264pay.c
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@ -424,6 +424,60 @@ avcc_error:
}
}
static void
gst_rtp_h264_pay_parse_sprop_parameter_sets (GstRtpH264Pay * rtph264pay)
{
const gchar *ps;
gchar **params;
guint len, num_sps, num_pps;
gint i;
GstBuffer *buf;
ps = rtph264pay->sprop_parameter_sets;
if (ps == NULL)
return;
gst_rtp_h264_pay_clear_sps_pps (rtph264pay);
params = g_strsplit (ps, ",", 0);
len = g_strv_length (params);
GST_DEBUG_OBJECT (rtph264pay, "we have %d params", len);
num_sps = num_pps = 0;
for (i = 0; params[i]; i++) {
gsize nal_len;
guint8 *nalp;
guint save = 0;
gint state = 0;
nal_len = strlen (params[i]);
buf = gst_buffer_new_and_alloc (nal_len);
nalp = GST_BUFFER_DATA (buf);
nal_len = g_base64_decode_step (params[i], nal_len, nalp, &state, &save);
GST_BUFFER_SIZE (buf) = nal_len;
if (!nal_len) {
gst_buffer_unref (buf);
continue;
}
/* append to the right list */
if ((nalp[0] & 0x1f) == 7) {
GST_DEBUG_OBJECT (rtph264pay, "adding param %d as SPS %d", i, num_sps);
rtph264pay->sps = g_list_append (rtph264pay->sps, buf);
num_sps++;
} else {
GST_DEBUG_OBJECT (rtph264pay, "adding param %d as PPS %d", i, num_pps);
rtph264pay->pps = g_list_append (rtph264pay->pps, buf);
num_pps++;
}
}
g_strfreev (params);
}
static guint
next_start_code (guint8 * data, guint size)
{
@ -963,6 +1017,9 @@ gst_rtp_h264_pay_handle_buffer (GstBaseRTPPayload * basepayload,
rtph264pay->sprop_parameter_sets, NULL))
goto caps_rejected;
/* parse SPS and PPS from provided parameter set (for insertion) */
gst_rtp_h264_pay_parse_sprop_parameter_sets (rtph264pay);
rtph264pay->update_caps = FALSE;
GST_DEBUG ("outcaps update: sprop-parameter-sets=%s",