static void
gst_rtp_qcelp_depay_init (GstRtpQCELPDepay * rtpqcelpdepay)
{
GstRTPBaseDepayload G_GNUC_UNUSED *depayload;
depayload = GST_RTP_BASE_DEPAYLOAD (rtpqcelpdepay);
}
static void
gst_rtp_base_depayload_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec)
{
GstRTPBaseDepayload *depayload;
GstRTPBaseDepayloadPrivate *priv;
depayload = GST_RTP_BASE_DEPAYLOAD (object);
priv = depayload->priv;
switch (prop_id) {
case PROP_STATS:
g_value_take_boxed (value,
gst_rtp_base_depayload_create_stats (depayload));
break;
case PROP_SOURCE_INFO:
g_value_set_boolean (value,
gst_rtp_base_depayload_is_source_info_enabled (depayload));
break;
case PROP_MAX_REORDER:
g_value_set_int (value, priv->max_reorder);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
fs_rtp_xdata_depay_init (FsRTPXdataDepay * rtpxdatadepay)
{
GstRTPBaseDepayload *depayload = GST_RTP_BASE_DEPAYLOAD (rtpxdatadepay);
depayload->clock_rate = 90000;
}
static void
gst_rtp_pcmu_depay_init (GstRtpPcmuDepay * rtppcmudepay)
{
GstRTPBaseDepayload *depayload;
depayload = GST_RTP_BASE_DEPAYLOAD (rtppcmudepay);
gst_pad_use_fixed_caps (GST_RTP_BASE_DEPAYLOAD_SRCPAD (depayload));
}
static GstStateChangeReturn
gst_rtp_base_depayload_change_state (GstElement * element,
GstStateChange transition)
{
GstRTPBaseDepayload *filter;
GstRTPBaseDepayloadPrivate *priv;
GstStateChangeReturn ret;
filter = GST_RTP_BASE_DEPAYLOAD (element);
priv = filter->priv;
switch (transition) {
case GST_STATE_CHANGE_NULL_TO_READY:
break;
case GST_STATE_CHANGE_READY_TO_PAUSED:
filter->need_newsegment = TRUE;
priv->npt_start = 0;
priv->npt_stop = -1;
priv->play_speed = 1.0;
priv->play_scale = 1.0;
priv->clock_base = -1;
priv->next_seqnum = -1;
priv->negotiated = FALSE;
priv->discont = FALSE;
break;
case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
break;
default:
break;
}
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
switch (transition) {
case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
break;
case GST_STATE_CHANGE_PAUSED_TO_READY:
gst_caps_replace (&priv->last_caps, NULL);
gst_event_replace (&priv->segment_event, NULL);
break;
case GST_STATE_CHANGE_READY_TO_NULL:
break;
default:
break;
}
return ret;
}
static gboolean
gst_rtp_base_depayload_handle_sink_event (GstPad * pad, GstObject * parent,
GstEvent * event)
{
gboolean res = FALSE;
GstRTPBaseDepayload *filter;
GstRTPBaseDepayloadClass *bclass;
filter = GST_RTP_BASE_DEPAYLOAD (parent);
bclass = GST_RTP_BASE_DEPAYLOAD_GET_CLASS (filter);
if (bclass->handle_event)
res = bclass->handle_event (filter, event);
else
gst_event_unref (event);
return res;
}
static void
flush_packets (GstRtpQCELPDepay * depay)
{
guint i, size;
GST_DEBUG_OBJECT (depay, "flushing packets");
size = depay->packets->len;
for (i = 0; i < size; i++) {
GstBuffer *outbuf;
outbuf = g_ptr_array_index (depay->packets, i);
g_ptr_array_index (depay->packets, i) = NULL;
gst_rtp_base_depayload_push (GST_RTP_BASE_DEPAYLOAD (depay), outbuf);
}
/* and reset interleaving state */
depay->interleaved = FALSE;
depay->bundling = 0;
}
static gboolean
gst_rtp_quicktime_parse_sd (GstRtpXQTDepay * rtpxqtdepay, guint8 * data,
guint data_len)
{
gint len;
guint32 fourcc;
if (data_len < 8)
goto too_short;
len = (data[0] << 24) | (data[1] << 16) | (data[2] << 8) | data[3];
if (len > data_len)
goto too_short;
fourcc = QT_FOURCC (data + 4);
GST_DEBUG_OBJECT (rtpxqtdepay, "parsing %" GST_FOURCC_FORMAT,
GST_FOURCC_ARGS (fourcc));
switch (fourcc) {
case FOURCC_avc1:
{
guint32 chlen;
if (len < 0x56)
goto too_short;
len -= 0x56;
data += 0x56;
/* find avcC */
while (len >= 8) {
chlen = QT_UINT32 (data);
fourcc = QT_FOURCC (data + 4);
if (fourcc == FOURCC_avcC) {
GstBuffer *buf;
gint size;
GstCaps *caps;
GST_DEBUG_OBJECT (rtpxqtdepay, "found avcC codec_data in sd, %u",
chlen);
/* parse, if found */
if (chlen < len)
size = chlen - 8;
else
size = len - 8;
buf = gst_buffer_new_and_alloc (size);
gst_buffer_fill (buf, 0, data + 8, size);
caps = gst_caps_new_simple ("video/x-h264",
"codec_data", GST_TYPE_BUFFER, buf, NULL);
gst_buffer_unref (buf);
gst_pad_set_caps (GST_RTP_BASE_DEPAYLOAD (rtpxqtdepay)->srcpad, caps);
gst_caps_unref (caps);
break;
}
len -= chlen;
data += chlen;
}
break;
}
default:
break;
}
return TRUE;
/* ERRORS */
too_short:
{
return FALSE;
}
}
static GstBuffer *
gst_dtmf_src_generate_tone (GstRtpDTMFDepay * rtpdtmfdepay,
GstRTPDTMFPayload payload)
{
GstBuffer *buf;
GstMapInfo map;
gint16 *p;
gint tone_size;
double i = 0;
double amplitude, f1, f2;
double volume_factor;
DTMF_KEY key = DTMF_KEYS[payload.event];
guint32 clock_rate;
GstRTPBaseDepayload *depayload = GST_RTP_BASE_DEPAYLOAD (rtpdtmfdepay);
gint volume;
static GstAllocationParams params = { 0, 1, 0, 0, };
clock_rate = depayload->clock_rate;
/* Create a buffer for the tone */
tone_size = (payload.duration * SAMPLE_SIZE * CHANNELS) / 8;
buf = gst_buffer_new_allocate (NULL, tone_size, ¶ms);
GST_BUFFER_DURATION (buf) = payload.duration * GST_SECOND / clock_rate;
volume = payload.volume;
gst_buffer_map (buf, &map, GST_MAP_WRITE);
p = (gint16 *) map.data;
volume_factor = pow (10, (-volume) / 20);
/*
* For each sample point we calculate 'x' as the
* the amplitude value.
*/
for (i = 0; i < (tone_size / (SAMPLE_SIZE / 8)); i++) {
/*
* We add the fundamental frequencies together.
*/
f1 = sin (2 * M_PI * key.low_frequency * (rtpdtmfdepay->sample /
clock_rate));
f2 = sin (2 * M_PI * key.high_frequency * (rtpdtmfdepay->sample /
clock_rate));
amplitude = (f1 + f2) / 2;
/* Adjust the volume */
amplitude *= volume_factor;
/* Make the [-1:1] interval into a [-32767:32767] interval */
amplitude *= 32767;
/* Store it in the data buffer */
*(p++) = (gint16) amplitude;
(rtpdtmfdepay->sample)++;
}
gst_buffer_unmap (buf, &map);
return buf;
}
static gboolean
gst_rtp_speex_depay_setcaps (GstRTPBaseDepayload * depayload, GstCaps * caps)
{
GstStructure *structure;
GstRtpSPEEXDepay *rtpspeexdepay;
gint clock_rate, nb_channels;
GstBuffer *buf;
GstMapInfo map;
guint8 *data;
const gchar *params;
GstCaps *srccaps;
gboolean res;
rtpspeexdepay = GST_RTP_SPEEX_DEPAY (depayload);
structure = gst_caps_get_structure (caps, 0);
if (!gst_structure_get_int (structure, "clock-rate", &clock_rate))
goto no_clockrate;
depayload->clock_rate = clock_rate;
if (!(params = gst_structure_get_string (structure, "encoding-params")))
nb_channels = 1;
else {
nb_channels = atoi (params);
}
/* construct minimal header and comment packet for the decoder */
buf = gst_buffer_new_and_alloc (80);
gst_buffer_map (buf, &map, GST_MAP_WRITE);
data = map.data;
memcpy (data, "Speex ", 8);
data += 8;
memcpy (data, "1.1.12", 7);
data += 20;
GST_WRITE_UINT32_LE (data, 1); /* version */
data += 4;
GST_WRITE_UINT32_LE (data, 80); /* header_size */
data += 4;
GST_WRITE_UINT32_LE (data, clock_rate); /* rate */
data += 4;
GST_WRITE_UINT32_LE (data, gst_rtp_speex_depay_get_mode (clock_rate)); /* mode */
data += 4;
GST_WRITE_UINT32_LE (data, 4); /* mode_bitstream_version */
data += 4;
GST_WRITE_UINT32_LE (data, nb_channels); /* nb_channels */
data += 4;
GST_WRITE_UINT32_LE (data, -1); /* bitrate */
data += 4;
GST_WRITE_UINT32_LE (data, 0xa0); /* frame_size */
data += 4;
GST_WRITE_UINT32_LE (data, 0); /* VBR */
data += 4;
GST_WRITE_UINT32_LE (data, 1); /* frames_per_packet */
data += 4;
GST_WRITE_UINT32_LE (data, 0); /* extra_headers */
data += 4;
GST_WRITE_UINT32_LE (data, 0); /* reserved1 */
data += 4;
GST_WRITE_UINT32_LE (data, 0); /* reserved2 */
gst_buffer_unmap (buf, &map);
srccaps = gst_caps_new_empty_simple ("audio/x-speex");
res = gst_pad_set_caps (depayload->srcpad, srccaps);
gst_caps_unref (srccaps);
gst_rtp_base_depayload_push (GST_RTP_BASE_DEPAYLOAD (rtpspeexdepay), buf);
buf = gst_buffer_new_and_alloc (sizeof (gst_rtp_speex_comment));
gst_buffer_fill (buf, 0, gst_rtp_speex_comment,
sizeof (gst_rtp_speex_comment));
gst_rtp_base_depayload_push (GST_RTP_BASE_DEPAYLOAD (rtpspeexdepay), buf);
return res;
/* ERRORS */
no_clockrate:
{
GST_DEBUG_OBJECT (depayload, "no clock-rate specified");
return FALSE;
}
}
static gboolean
gst_rtp_celt_depay_setcaps (GstRTPBaseDepayload * depayload, GstCaps * caps)
{
GstStructure *structure;
GstRtpCELTDepay *rtpceltdepay;
gint clock_rate, nb_channels = 0, frame_size = 0;
GstBuffer *buf;
GstMapInfo map;
guint8 *ptr;
const gchar *params;
GstCaps *srccaps;
gboolean res;
rtpceltdepay = GST_RTP_CELT_DEPAY (depayload);
structure = gst_caps_get_structure (caps, 0);
if (!gst_structure_get_int (structure, "clock-rate", &clock_rate))
goto no_clockrate;
depayload->clock_rate = clock_rate;
if ((params = gst_structure_get_string (structure, "encoding-params")))
nb_channels = atoi (params);
if (!nb_channels)
nb_channels = DEFAULT_CHANNELS;
if ((params = gst_structure_get_string (structure, "frame-size")))
frame_size = atoi (params);
if (!frame_size)
frame_size = DEFAULT_FRAMESIZE;
rtpceltdepay->frame_size = frame_size;
GST_DEBUG_OBJECT (depayload, "clock-rate=%d channels=%d frame-size=%d",
clock_rate, nb_channels, frame_size);
/* construct minimal header and comment packet for the decoder */
buf = gst_buffer_new_and_alloc (60);
gst_buffer_map (buf, &map, GST_MAP_WRITE);
ptr = map.data;
memcpy (ptr, "CELT ", 8);
ptr += 8;
memcpy (ptr, "1.1.12", 7);
ptr += 20;
GST_WRITE_UINT32_LE (ptr, 0x80000006); /* version */
ptr += 4;
GST_WRITE_UINT32_LE (ptr, 56); /* header_size */
ptr += 4;
GST_WRITE_UINT32_LE (ptr, clock_rate); /* rate */
ptr += 4;
GST_WRITE_UINT32_LE (ptr, nb_channels); /* channels */
ptr += 4;
GST_WRITE_UINT32_LE (ptr, frame_size); /* frame-size */
ptr += 4;
GST_WRITE_UINT32_LE (ptr, -1); /* overlap */
ptr += 4;
GST_WRITE_UINT32_LE (ptr, -1); /* bytes_per_packet */
ptr += 4;
GST_WRITE_UINT32_LE (ptr, 0); /* extra headers */
gst_buffer_unmap (buf, &map);
srccaps = gst_caps_new_empty_simple ("audio/x-celt");
res = gst_pad_set_caps (depayload->srcpad, srccaps);
gst_caps_unref (srccaps);
gst_rtp_base_depayload_push (GST_RTP_BASE_DEPAYLOAD (rtpceltdepay), buf);
buf = gst_buffer_new_and_alloc (sizeof (gst_rtp_celt_comment));
gst_buffer_fill (buf, 0, gst_rtp_celt_comment, sizeof (gst_rtp_celt_comment));
gst_rtp_base_depayload_push (GST_RTP_BASE_DEPAYLOAD (rtpceltdepay), buf);
return res;
/* ERRORS */
no_clockrate:
{
GST_ERROR_OBJECT (depayload, "no clock-rate specified");
return FALSE;
}
}
