static void
update_current_position_bar (GthMediaViewerPage *self)
{
GstFormat format;
gint64 current_value = 0;
format = GST_FORMAT_TIME;
if (gst_element_query_position (self->priv->playbin, format, ¤t_value)) {
char *s;
if (self->priv->duration <= 0) {
gst_element_query_duration (self->priv->playbin, format, &self->priv->duration);
s = _g_format_duration_for_display (GST_TIME_AS_MSECONDS (self->priv->duration));
gtk_label_set_text (GTK_LABEL (GET_WIDGET ("label_duration")), s);
g_free (s);
}
/*
g_print ("==> %" G_GINT64_FORMAT " / %" G_GINT64_FORMAT " (%0.3g)\n" ,
current_value,
self->priv->duration,
((double) current_value / self->priv->duration) * 100.0);
*/
g_signal_handlers_block_by_func(GET_WIDGET ("position_adjustment"), position_value_changed_cb, self);
gtk_adjustment_set_value (GTK_ADJUSTMENT (GET_WIDGET ("position_adjustment")), (self->priv->duration > 0) ? ((double) current_value / self->priv->duration) * 100.0 : 0.0);
g_signal_handlers_unblock_by_func(GET_WIDGET ("position_adjustment"), position_value_changed_cb, self);
s = _g_format_duration_for_display (GST_TIME_AS_MSECONDS (current_value));
gtk_label_set_text (GTK_LABEL (GET_WIDGET ("label_position")), s);
g_free (s);
}
}
static void
position_value_changed_cb (GtkAdjustment *adjustment,
gpointer user_data)
{
GthMediaViewerPage *self = user_data;
gint64 current_value;
char *s;
if (self->priv->playbin == NULL)
return;
current_value = (gint64) (gtk_adjustment_get_value (adjustment) / 100.0 * self->priv->duration);
if (! gst_element_seek_simple (self->priv->playbin,
GST_FORMAT_TIME,
GST_SEEK_FLAG_FLUSH | GST_SEEK_FLAG_KEY_UNIT,
current_value))
{
g_warning ("seek failed");
}
s = _g_format_duration_for_display (GST_TIME_AS_MSECONDS (current_value));
gtk_label_set_text (GTK_LABEL (GET_WIDGET ("label_position")), s);
g_free (s);
}
/**
* gst_rtsp_session_next_timeout:
* @session: a #GstRTSPSession
* @now: the current system time
*
* Get the amount of milliseconds till the session will expire.
*
* Returns: the amount of milliseconds since the session will time out.
*/
gint
gst_rtsp_session_next_timeout (GstRTSPSession * session, GTimeVal * now)
{
GstRTSPSessionPrivate *priv;
gint res;
GstClockTime last_access, now_ns;
g_return_val_if_fail (GST_IS_RTSP_SESSION (session), -1);
g_return_val_if_fail (now != NULL, -1);
priv = session->priv;
g_mutex_lock (&priv->lock);
if (g_atomic_int_get (&priv->expire_count) != 0) {
/* touch session when the expire count is not 0 */
g_get_current_time (&priv->last_access);
}
last_access = GST_TIMEVAL_TO_TIME (priv->last_access);
/* add timeout allow for 5 seconds of extra time */
last_access += priv->timeout * GST_SECOND + (5 * GST_SECOND);
g_mutex_unlock (&priv->lock);
now_ns = GST_TIMEVAL_TO_TIME (*now);
if (last_access > now_ns)
res = GST_TIME_AS_MSECONDS (last_access - now_ns);
else
res = 0;
return res;
}
static void
gst_sh_video_sink_get_times (GstBaseSink * bsink, GstBuffer * buf,
GstClockTime * start, GstClockTime * end)
{
GstSHVideoSink *sink = GST_SH_VIDEO_SINK (bsink);
GST_LOG_OBJECT(sink,"Times requested. Buffer timestamp: %dms duration:%dms",
GST_TIME_AS_MSECONDS(GST_BUFFER_TIMESTAMP (buf)),
GST_TIME_AS_MSECONDS(GST_BUFFER_DURATION (buf)));
if (GST_BUFFER_TIMESTAMP_IS_VALID (buf))
{
*start = GST_BUFFER_TIMESTAMP (buf);
if (GST_BUFFER_DURATION_IS_VALID (buf) &&
GST_TIME_AS_MSECONDS(GST_BUFFER_DURATION (buf)) > 0 )
{
*end = *start + GST_BUFFER_DURATION (buf);
}
else
{
if (sink->fps_numerator > 0)
{
*end = *start +
gst_util_uint64_scale_int (GST_SECOND,
sink->fps_denominator,
sink->fps_numerator);
}
else
{
GST_ELEMENT_ERROR((GstElement*)sink,
CORE,FAILED,("No framerate set."),
("%s failed (No framerate set for playback)",
__FUNCTION__));
}
}
GST_LOG_OBJECT(sink,"Times given, start: %dms end:%dms",
GST_TIME_AS_MSECONDS(*start),
GST_TIME_AS_MSECONDS(*end));
}
else
{
GST_ELEMENT_ERROR((GstElement*)sink,
CORE,FAILED,("No timestamp given."),
("%s failed (No timestamp set for the buffer)",
__FUNCTION__));
}
}
static void mplayer_position_update()
{
GstFormat fmt = GST_FORMAT_TIME;
gint64 pos = 0;
gst_element_query_position (pipeline, &fmt, &pos);
gCurrentPosition = GST_TIME_AS_MSECONDS(pos);
g_print ("Current Position=%lu\n", gCurrentPosition);
return;
}
void GStreamerWrapper::retrieveVideoInfo()
{
////////////////////////////////////////////////////////////////////////// Media Duration
// Nanoseconds
GstFormat gstFormat = GST_FORMAT_TIME;
gst_element_query_duration( GST_ELEMENT( m_GstPipeline ), &gstFormat, &m_iDurationInNs );
// Milliseconds
m_dDurationInMs = GST_TIME_AS_MSECONDS( m_iDurationInNs );
////////////////////////////////////////////////////////////////////////// Stream Info
// Number of Video Streams
g_object_get( m_GstPipeline, "n-video", &m_iNumVideoStreams, NULL );
// Number of Audio Streams
g_object_get( m_GstPipeline, "n-audio", &m_iNumAudioStreams, NULL );
// Set Content Type according to the number of available Video and Audio streams
if ( m_iNumVideoStreams > 0 && m_iNumAudioStreams > 0 )
m_ContentType = VIDEO_AND_AUDIO;
else if ( m_iNumVideoStreams > 0 )
m_ContentType = VIDEO;
else if ( m_iNumAudioStreams > 0 )
m_ContentType = AUDIO;
////////////////////////////////////////////////////////////////////////// Video Data
if ( m_iNumVideoStreams > 0 )
{
GstPad* gstPad = gst_element_get_static_pad( m_GstVideoSink, "sink" );
if ( gstPad )
{
// Video Size
gst_video_get_size( GST_PAD( gstPad ), &m_iWidth, &m_iHeight );
// Frame Rate
const GValue* framerate = gst_video_frame_rate( gstPad );
int iFpsNumerator = gst_value_get_fraction_numerator( framerate );
int iFpsDenominator = gst_value_get_fraction_denominator( framerate );
// Number of frames
m_iNumberOfFrames = (float)( m_iDurationInNs / GST_SECOND ) * (float)iFpsNumerator / (float)iFpsDenominator;
// FPS
m_fFps = (float)iFpsNumerator / (float)iFpsDenominator;
gst_object_unref( gstPad );
}
}
}
static void
shmdata_any_reader_on_new_buffer_from_source (GstElement * elt,
gpointer user_data)
{
shmdata_any_reader_t *me = (shmdata_any_reader_t *) user_data;
GstBuffer *buf;
/* pull the next item, this can return NULL when there is no more data and
* EOS has been received */
buf = gst_app_sink_pull_buffer (GST_APP_SINK (me->sink_));
if (me->on_data_ != NULL)
{
if (me->type_ == NULL
|| gst_caps_is_always_compatible (me->data_caps_,
GST_BUFFER_CAPS (buf)))
{
gchar *caps_string = gst_caps_to_string (GST_BUFFER_CAPS (buf));
me->on_data_ (me,
(void *) buf,
(void *) GST_BUFFER_DATA (buf),
(int) GST_BUFFER_SIZE (buf),
(unsigned long long)
GST_TIME_AS_NSECONDS (GST_BUFFER_TIMESTAMP (buf)),
(const char *)
caps_string,
(void *) me->on_data_user_data_);
g_free (caps_string);
}
else
{
g_debug
("incompatible data frame retrieved, data %p, data size %d, timestamp %llu, caps %"GST_PTR_FORMAT,
GST_BUFFER_DATA (buf), GST_BUFFER_SIZE (buf),
GST_TIME_AS_MSECONDS (GST_BUFFER_TIMESTAMP (buf)),
GST_BUFFER_CAPS (buf));
}
}
/* if (buf) */
/* gst_buffer_unref (buf); */
}
static void
playbin_source_cb (GstElement *playbin,
GParamSpec *pspec, GbpPlayer *player)
{
GstElement *element;
GObjectClass *klass;
g_object_get (G_OBJECT (playbin), "source", &element, NULL);
klass = G_OBJECT_GET_CLASS (element);
if (g_object_class_find_property (klass, "latency")) {
g_object_set (element, "latency",
GST_TIME_AS_MSECONDS (player->priv->latency), NULL);
}
if (g_object_class_find_property (klass, "tcp-timeout")) {
g_object_set (element, "tcp-timeout",
GST_TIME_AS_USECONDS (player->priv->tcp_timeout), NULL);
}
}
static GstFlowReturn
gst_vtenc_encode_frame (GstVTEnc * self, GstBuffer * buf)
{
GstCVApi *cv = self->ctx->cv;
GstVTApi *vt = self->ctx->vt;
CMTime ts, duration;
CVPixelBufferRef pbuf = NULL;
VTStatus vt_status;
GstFlowReturn ret = GST_FLOW_OK;
guint i;
self->cur_inbuf = buf;
ts = self->ctx->cm->CMTimeMake
(GST_TIME_AS_MSECONDS (GST_BUFFER_TIMESTAMP (buf)), 1000);
duration = self->ctx->cm->CMTimeMake
(GST_TIME_AS_MSECONDS (GST_BUFFER_DURATION (buf)), 1000);
if (GST_IS_CORE_MEDIA_BUFFER (buf)) {
GstCoreMediaBuffer *cmbuf = GST_CORE_MEDIA_BUFFER_CAST (buf);
pbuf = gst_core_media_buffer_get_pixel_buffer (cmbuf);
}
if (pbuf == NULL) {
CVReturn cv_ret;
cv_ret = cv->CVPixelBufferCreateWithBytes (NULL,
self->negotiated_width, self->negotiated_height,
kCVPixelFormatType_422YpCbCr8Deprecated, GST_BUFFER_DATA (buf),
self->negotiated_width * 2,
(CVPixelBufferReleaseBytesCallback) gst_buffer_unref, buf, NULL, &pbuf);
if (cv_ret != kCVReturnSuccess)
goto cv_error;
gst_buffer_ref (buf);
}
GST_OBJECT_LOCK (self);
self->expect_keyframe = CFDictionaryContainsKey (self->options,
*(vt->kVTEncodeFrameOptionKey_ForceKeyFrame));
if (self->expect_keyframe)
gst_vtenc_clear_cached_caps_downstream (self);
vt_status = self->ctx->vt->VTCompressionSessionEncodeFrame (self->session,
pbuf, ts, duration, self->options, NULL, NULL);
if (vt_status != 0) {
GST_WARNING_OBJECT (self, "VTCompressionSessionEncodeFrame returned %d",
vt_status);
}
self->ctx->vt->VTCompressionSessionCompleteFrames (self->session,
*(self->ctx->cm->kCMTimeInvalid));
GST_OBJECT_UNLOCK (self);
cv->CVPixelBufferRelease (pbuf);
self->cur_inbuf = NULL;
gst_buffer_unref (buf);
if (self->cur_outbufs->len > 0) {
GstCoreMediaBuffer *cmbuf =
GST_CORE_MEDIA_BUFFER_CAST (g_ptr_array_index (self->cur_outbufs, 0));
if (!gst_vtenc_negotiate_downstream (self, cmbuf->sample_buf))
ret = GST_FLOW_NOT_NEGOTIATED;
}
for (i = 0; i != self->cur_outbufs->len; i++) {
GstBuffer *buf = g_ptr_array_index (self->cur_outbufs, i);
if (ret == GST_FLOW_OK) {
gst_buffer_set_caps (buf, GST_PAD_CAPS (self->srcpad));
ret = gst_pad_push (self->srcpad, buf);
} else {
gst_buffer_unref (buf);
}
}
g_ptr_array_set_size (self->cur_outbufs, 0);
return ret;
cv_error:
{
self->cur_inbuf = NULL;
gst_buffer_unref (buf);
return GST_FLOW_ERROR;
}
}
static GstFlowReturn
gst_vtenc_encode_frame (GstVTEnc * self, GstBuffer * buf)
{
GstVTApi *vt = self->ctx->vt;
CMTime ts, duration;
GstCoreMediaMeta *meta;
CVPixelBufferRef pbuf = NULL;
VTStatus vt_status;
GstFlowReturn ret = GST_FLOW_OK;
guint i;
self->cur_inbuf = buf;
ts = CMTimeMake (GST_TIME_AS_MSECONDS (GST_BUFFER_TIMESTAMP (buf)), 1000);
duration = CMTimeMake
(GST_TIME_AS_MSECONDS (GST_BUFFER_DURATION (buf)), 1000);
meta = gst_buffer_get_core_media_meta (buf);
if (meta != NULL) {
pbuf = gst_core_media_buffer_get_pixel_buffer (buf);
}
if (pbuf == NULL) {
GstVTEncFrame *frame;
CVReturn cv_ret;
frame = gst_vtenc_frame_new (buf, &self->video_info);
if (!frame)
goto cv_error;
{
const size_t num_planes = GST_VIDEO_FRAME_N_PLANES (&frame->videoframe);
void *plane_base_addresses[GST_VIDEO_MAX_PLANES];
size_t plane_widths[GST_VIDEO_MAX_PLANES];
size_t plane_heights[GST_VIDEO_MAX_PLANES];
size_t plane_bytes_per_row[GST_VIDEO_MAX_PLANES];
OSType pixel_format_type;
size_t i;
for (i = 0; i < num_planes; i++) {
plane_base_addresses[i] =
GST_VIDEO_FRAME_PLANE_DATA (&frame->videoframe, i);
plane_widths[i] = GST_VIDEO_FRAME_COMP_WIDTH (&frame->videoframe, i);
plane_heights[i] = GST_VIDEO_FRAME_COMP_HEIGHT (&frame->videoframe, i);
plane_bytes_per_row[i] =
GST_VIDEO_FRAME_COMP_STRIDE (&frame->videoframe, i);
plane_bytes_per_row[i] =
GST_VIDEO_FRAME_COMP_STRIDE (&frame->videoframe, i);
}
switch (GST_VIDEO_INFO_FORMAT (&self->video_info)) {
case GST_VIDEO_FORMAT_I420:
pixel_format_type = kCVPixelFormatType_420YpCbCr8Planar;
break;
case GST_VIDEO_FORMAT_NV12:
pixel_format_type = kCVPixelFormatType_420YpCbCr8BiPlanarVideoRange;
break;
default:
goto cv_error;
}
cv_ret = CVPixelBufferCreateWithPlanarBytes (NULL,
self->negotiated_width, self->negotiated_height,
pixel_format_type,
frame,
GST_VIDEO_FRAME_SIZE (&frame->videoframe),
num_planes,
plane_base_addresses,
plane_widths,
plane_heights,
plane_bytes_per_row, gst_pixel_buffer_release_cb, frame, NULL, &pbuf);
if (cv_ret != kCVReturnSuccess) {
gst_vtenc_frame_free (frame);
goto cv_error;
}
}
}
GST_OBJECT_LOCK (self);
self->expect_keyframe = CFDictionaryContainsKey (self->options,
*(vt->kVTEncodeFrameOptionKey_ForceKeyFrame));
if (self->expect_keyframe)
gst_vtenc_clear_cached_caps_downstream (self);
vt_status = self->ctx->vt->VTCompressionSessionEncodeFrame (self->session,
pbuf, ts, duration, self->options, NULL, NULL);
if (vt_status != 0) {
GST_WARNING_OBJECT (self, "VTCompressionSessionEncodeFrame returned %d",
vt_status);
}
self->ctx->vt->VTCompressionSessionCompleteFrames (self->session,
kCMTimeInvalid);
GST_OBJECT_UNLOCK (self);
CVPixelBufferRelease (pbuf);
self->cur_inbuf = NULL;
gst_buffer_unref (buf);
if (self->cur_outbufs->len > 0) {
meta =
gst_buffer_get_core_media_meta (g_ptr_array_index (self->cur_outbufs,
0));
if (!gst_vtenc_negotiate_downstream (self, meta->sample_buf))
ret = GST_FLOW_NOT_NEGOTIATED;
}
for (i = 0; i != self->cur_outbufs->len; i++) {
GstBuffer *buf = g_ptr_array_index (self->cur_outbufs, i);
if (ret == GST_FLOW_OK) {
ret = gst_pad_push (self->srcpad, buf);
} else {
gst_buffer_unref (buf);
}
}
g_ptr_array_set_size (self->cur_outbufs, 0);
return ret;
cv_error:
{
self->cur_inbuf = NULL;
gst_buffer_unref (buf);
return GST_FLOW_ERROR;
}
}
static void
make_media (GstSDPMessage * sdp, GstSDPInfo * info, GstRTSPMedia * media,
GstRTSPStream * stream, GstStructure * s, GstRTSPProfile profile)
{
GstSDPMedia *smedia;
const gchar *caps_str, *caps_enc, *caps_params;
gchar *tmp;
gint caps_pt, caps_rate;
guint n_fields, j;
gboolean first;
GString *fmtp;
GstRTSPLowerTrans ltrans;
GSocketFamily family;
const gchar *addrtype, *proto;
gchar *address;
guint ttl;
GstClockTime rtx_time;
gst_sdp_media_new (&smedia);
/* get media type and payload for the m= line */
caps_str = gst_structure_get_string (s, "media");
gst_sdp_media_set_media (smedia, caps_str);
gst_structure_get_int (s, "payload", &caps_pt);
tmp = g_strdup_printf ("%d", caps_pt);
gst_sdp_media_add_format (smedia, tmp);
g_free (tmp);
gst_sdp_media_set_port_info (smedia, 0, 1);
switch (profile) {
case GST_RTSP_PROFILE_AVP:
proto = "RTP/AVP";
break;
case GST_RTSP_PROFILE_AVPF:
proto = "RTP/AVPF";
break;
case GST_RTSP_PROFILE_SAVP:
proto = "RTP/SAVP";
break;
case GST_RTSP_PROFILE_SAVPF:
proto = "RTP/SAVPF";
break;
default:
proto = "udp";
break;
}
gst_sdp_media_set_proto (smedia, proto);
if (info->is_ipv6) {
addrtype = "IP6";
family = G_SOCKET_FAMILY_IPV6;
} else {
addrtype = "IP4";
family = G_SOCKET_FAMILY_IPV4;
}
ltrans = gst_rtsp_stream_get_protocols (stream);
if (ltrans == GST_RTSP_LOWER_TRANS_UDP_MCAST) {
GstRTSPAddress *addr;
addr = gst_rtsp_stream_get_multicast_address (stream, family);
if (addr == NULL)
goto no_multicast;
address = g_strdup (addr->address);
ttl = addr->ttl;
gst_rtsp_address_free (addr);
} else {
ttl = 16;
if (info->is_ipv6)
address = g_strdup ("::");
else
address = g_strdup ("0.0.0.0");
}
/* for the c= line */
gst_sdp_media_add_connection (smedia, "IN", addrtype, address, ttl, 1);
g_free (address);
/* get clock-rate, media type and params for the rtpmap attribute */
gst_structure_get_int (s, "clock-rate", &caps_rate);
caps_enc = gst_structure_get_string (s, "encoding-name");
caps_params = gst_structure_get_string (s, "encoding-params");
if (caps_enc) {
if (caps_params)
tmp = g_strdup_printf ("%d %s/%d/%s", caps_pt, caps_enc, caps_rate,
caps_params);
else
tmp = g_strdup_printf ("%d %s/%d", caps_pt, caps_enc, caps_rate);
gst_sdp_media_add_attribute (smedia, "rtpmap", tmp);
g_free (tmp);
}
/* the config uri */
tmp = gst_rtsp_stream_get_control (stream);
gst_sdp_media_add_attribute (smedia, "control", tmp);
g_free (tmp);
/* check for srtp */
do {
GstBuffer *srtpkey;
const GValue *val;
const gchar *srtpcipher, *srtpauth, *srtcpcipher, *srtcpauth;
GstMIKEYMessage *msg;
GstMIKEYPayload *payload, *pkd;
GBytes *bytes;
GstMapInfo info;
const guint8 *data;
gsize size;
gchar *base64;
guint8 byte;
guint32 ssrc;
val = gst_structure_get_value (s, "srtp-key");
if (val == NULL)
break;
srtpkey = gst_value_get_buffer (val);
if (srtpkey == NULL)
break;
srtpcipher = gst_structure_get_string (s, "srtp-cipher");
srtpauth = gst_structure_get_string (s, "srtp-auth");
srtcpcipher = gst_structure_get_string (s, "srtcp-cipher");
srtcpauth = gst_structure_get_string (s, "srtcp-auth");
if (srtpcipher == NULL || srtpauth == NULL || srtcpcipher == NULL ||
srtcpauth == NULL)
break;
msg = gst_mikey_message_new ();
/* unencrypted MIKEY message, we send this over TLS so this is allowed */
gst_mikey_message_set_info (msg, GST_MIKEY_VERSION, GST_MIKEY_TYPE_PSK_INIT,
FALSE, GST_MIKEY_PRF_MIKEY_1, 0, GST_MIKEY_MAP_TYPE_SRTP);
/* add policy '0' for our SSRC */
gst_rtsp_stream_get_ssrc (stream, &ssrc);
gst_mikey_message_add_cs_srtp (msg, 0, ssrc, 0);
/* timestamp is now */
gst_mikey_message_add_t_now_ntp_utc (msg);
/* add some random data */
gst_mikey_message_add_rand_len (msg, 16);
/* the policy '0' is SRTP with the above discovered algorithms */
payload = gst_mikey_payload_new (GST_MIKEY_PT_SP);
gst_mikey_payload_sp_set (payload, 0, GST_MIKEY_SEC_PROTO_SRTP);
/* only AES-CM is supported */
byte = 1;
gst_mikey_payload_sp_add_param (payload, GST_MIKEY_SP_SRTP_ENC_ALG, 1,
&byte);
/* Encryption key length */
byte = enc_key_length_from_cipher_name (srtpcipher);
gst_mikey_payload_sp_add_param (payload, GST_MIKEY_SP_SRTP_ENC_KEY_LEN, 1,
&byte);
/* only HMAC-SHA1 */
gst_mikey_payload_sp_add_param (payload, GST_MIKEY_SP_SRTP_AUTH_ALG, 1,
&byte);
/* Authentication key length */
byte = auth_key_length_from_auth_name (srtpauth);
gst_mikey_payload_sp_add_param (payload, GST_MIKEY_SP_SRTP_AUTH_KEY_LEN, 1,
&byte);
/* we enable encryption on RTP and RTCP */
gst_mikey_payload_sp_add_param (payload, GST_MIKEY_SP_SRTP_SRTP_ENC, 1,
&byte);
gst_mikey_payload_sp_add_param (payload, GST_MIKEY_SP_SRTP_SRTCP_ENC, 1,
&byte);
/* we enable authentication on RTP and RTCP */
gst_mikey_payload_sp_add_param (payload, GST_MIKEY_SP_SRTP_SRTP_AUTH, 1,
&byte);
gst_mikey_message_add_payload (msg, payload);
/* make unencrypted KEMAC */
payload = gst_mikey_payload_new (GST_MIKEY_PT_KEMAC);
gst_mikey_payload_kemac_set (payload, GST_MIKEY_ENC_NULL,
GST_MIKEY_MAC_NULL);
/* add the key in key data */
pkd = gst_mikey_payload_new (GST_MIKEY_PT_KEY_DATA);
gst_buffer_map (srtpkey, &info, GST_MAP_READ);
gst_mikey_payload_key_data_set_key (pkd, GST_MIKEY_KD_TEK, info.size,
info.data);
gst_buffer_unmap (srtpkey, &info);
/* add key data to KEMAC */
gst_mikey_payload_kemac_add_sub (payload, pkd);
gst_mikey_message_add_payload (msg, payload);
/* now serialize this to bytes */
bytes = gst_mikey_message_to_bytes (msg, NULL, NULL);
gst_mikey_message_unref (msg);
/* and make it into base64 */
data = g_bytes_get_data (bytes, &size);
base64 = g_base64_encode (data, size);
g_bytes_unref (bytes);
tmp = g_strdup_printf ("mikey %s", base64);
g_free (base64);
gst_sdp_media_add_attribute (smedia, "key-mgmt", tmp);
g_free (tmp);
} while (FALSE);
/* collect all other properties and add them to fmtp or attributes */
fmtp = g_string_new ("");
g_string_append_printf (fmtp, "%d ", caps_pt);
first = TRUE;
n_fields = gst_structure_n_fields (s);
for (j = 0; j < n_fields; j++) {
const gchar *fname, *fval;
fname = gst_structure_nth_field_name (s, j);
/* filter out standard properties */
if (!strcmp (fname, "media"))
continue;
if (!strcmp (fname, "payload"))
continue;
if (!strcmp (fname, "clock-rate"))
continue;
if (!strcmp (fname, "encoding-name"))
continue;
if (!strcmp (fname, "encoding-params"))
continue;
if (!strcmp (fname, "ssrc"))
continue;
if (!strcmp (fname, "timestamp-offset"))
continue;
if (!strcmp (fname, "seqnum-offset"))
continue;
if (g_str_has_prefix (fname, "srtp-"))
continue;
if (g_str_has_prefix (fname, "srtcp-"))
continue;
/* handled later */
if (g_str_has_prefix (fname, "x-gst-rtsp-server-rtx-time"))
continue;
if (!strcmp (fname, "a-framesize")) {
/* a-framesize attribute */
if ((fval = gst_structure_get_string (s, fname))) {
tmp = g_strdup_printf ("%d %s", caps_pt, fval);
gst_sdp_media_add_attribute (smedia, fname + 2, tmp);
g_free (tmp);
}
continue;
}
if (g_str_has_prefix (fname, "a-")) {
/* attribute */
if ((fval = gst_structure_get_string (s, fname)))
gst_sdp_media_add_attribute (smedia, fname + 2, fval);
continue;
}
if (g_str_has_prefix (fname, "x-")) {
/* attribute */
if ((fval = gst_structure_get_string (s, fname)))
gst_sdp_media_add_attribute (smedia, fname, fval);
continue;
}
if ((fval = gst_structure_get_string (s, fname))) {
g_string_append_printf (fmtp, "%s%s=%s", first ? "" : ";", fname, fval);
first = FALSE;
}
}
if (!first) {
tmp = g_string_free (fmtp, FALSE);
gst_sdp_media_add_attribute (smedia, "fmtp", tmp);
g_free (tmp);
} else {
g_string_free (fmtp, TRUE);
}
update_sdp_from_tags (stream, smedia);
if ((rtx_time = gst_rtsp_stream_get_retransmission_time (stream))) {
/* ssrc multiplexed retransmit functionality */
guint rtx_pt = gst_rtsp_stream_get_retransmission_pt (stream);
if (rtx_pt == 0) {
g_warning ("failed to find an available dynamic payload type. "
"Not adding retransmission");
} else {
gchar *tmp;
tmp = g_strdup_printf ("%d", rtx_pt);
gst_sdp_media_add_format (smedia, tmp);
g_free (tmp);
tmp = g_strdup_printf ("%d rtx/%d", rtx_pt, caps_rate);
gst_sdp_media_add_attribute (smedia, "rtpmap", tmp);
g_free (tmp);
tmp =
g_strdup_printf ("%d apt=%d;rtx-time=%" G_GINT64_FORMAT, rtx_pt,
caps_pt, GST_TIME_AS_MSECONDS (rtx_time));
gst_sdp_media_add_attribute (smedia, "fmtp", tmp);
g_free (tmp);
}
}
gst_sdp_message_add_media (sdp, smedia);
gst_sdp_media_free (smedia);
return;
/* ERRORS */
no_multicast:
{
gst_sdp_media_free (smedia);
g_warning ("ignoring stream %d without multicast address",
gst_rtsp_stream_get_index (stream));
return;
}
}
