static GstBufferList *
_create_buffer_list (guint * data_size)
{
GstBufferList *list;
GstBufferListIterator *it;
GstBuffer *rtp_buffer;
GstBuffer *data_buffer;
list = gst_buffer_list_new ();
it = gst_buffer_list_iterate (list);
/*** First group, i.e. first packet. **/
/* Create the RTP header buffer */
rtp_buffer = gst_buffer_new ();
GST_BUFFER_MALLOCDATA (rtp_buffer) = g_malloc (RTP_HEADER_SIZE);
GST_BUFFER_DATA (rtp_buffer) = GST_BUFFER_MALLOCDATA (rtp_buffer);
GST_BUFFER_SIZE (rtp_buffer) = RTP_HEADER_SIZE;
memset (GST_BUFFER_DATA (rtp_buffer), 0, RTP_HEADER_SIZE);
/* Create the buffer that holds the payload */
data_buffer = gst_buffer_new ();
GST_BUFFER_MALLOCDATA (data_buffer) = g_malloc (RTP_PAYLOAD_SIZE);
GST_BUFFER_DATA (data_buffer) = GST_BUFFER_MALLOCDATA (data_buffer);
GST_BUFFER_SIZE (data_buffer) = RTP_PAYLOAD_SIZE;
memset (GST_BUFFER_DATA (data_buffer), 0, RTP_PAYLOAD_SIZE);
/* Create a new group to hold the rtp header and the payload */
gst_buffer_list_iterator_add_group (it);
gst_buffer_list_iterator_add (it, rtp_buffer);
gst_buffer_list_iterator_add (it, data_buffer);
/*** Second group, i.e. second packet. ***/
/* Create the RTP header buffer */
rtp_buffer = gst_buffer_new ();
GST_BUFFER_MALLOCDATA (rtp_buffer) = g_malloc (RTP_HEADER_SIZE);
GST_BUFFER_DATA (rtp_buffer) = GST_BUFFER_MALLOCDATA (rtp_buffer);
GST_BUFFER_SIZE (rtp_buffer) = RTP_HEADER_SIZE;
memset (GST_BUFFER_DATA (rtp_buffer), 0, RTP_HEADER_SIZE);
/* Create the buffer that holds the payload */
data_buffer = gst_buffer_new ();
GST_BUFFER_MALLOCDATA (data_buffer) = g_malloc (RTP_PAYLOAD_SIZE);
GST_BUFFER_DATA (data_buffer) = GST_BUFFER_MALLOCDATA (data_buffer);
GST_BUFFER_SIZE (data_buffer) = RTP_PAYLOAD_SIZE;
memset (GST_BUFFER_DATA (data_buffer), 0, RTP_PAYLOAD_SIZE);
/* Create a new group to hold the rtp header and the payload */
gst_buffer_list_iterator_add_group (it);
gst_buffer_list_iterator_add (it, rtp_buffer);
gst_buffer_list_iterator_add (it, data_buffer);
/* Calculate the size of the data */
*data_size = 2 * RTP_HEADER_SIZE + 2 * RTP_PAYLOAD_SIZE;
gst_buffer_list_iterator_free (it);
return list;
}
PassOwnPtr<AudioBus> AudioFileReader::createBus(float sampleRate, bool mixToMono)
{
m_sampleRate = sampleRate;
m_frontLeftBuffers = gst_buffer_list_new();
m_frontRightBuffers = gst_buffer_list_new();
#ifndef GST_API_VERSION_1
m_frontLeftBuffersIterator = gst_buffer_list_iterate(m_frontLeftBuffers);
gst_buffer_list_iterator_add_group(m_frontLeftBuffersIterator);
m_frontRightBuffersIterator = gst_buffer_list_iterate(m_frontRightBuffers);
gst_buffer_list_iterator_add_group(m_frontRightBuffersIterator);
#endif
GRefPtr<GMainContext> context = adoptGRef(g_main_context_new());
g_main_context_push_thread_default(context.get());
m_loop = adoptGRef(g_main_loop_new(context.get(), FALSE));
// Start the pipeline processing just after the loop is started.
GRefPtr<GSource> timeoutSource = adoptGRef(g_timeout_source_new(0));
g_source_attach(timeoutSource.get(), context.get());
g_source_set_callback(timeoutSource.get(), reinterpret_cast<GSourceFunc>(enteredMainLoopCallback), this, 0);
g_main_loop_run(m_loop.get());
g_main_context_pop_thread_default(context.get());
if (m_errorOccurred)
return nullptr;
unsigned channels = mixToMono ? 1 : 2;
OwnPtr<AudioBus> audioBus = adoptPtr(new AudioBus(channels, m_channelSize, true));
audioBus->setSampleRate(m_sampleRate);
copyGstreamerBuffersToAudioChannel(m_frontLeftBuffers, audioBus->channel(0));
if (!mixToMono)
copyGstreamerBuffersToAudioChannel(m_frontRightBuffers, audioBus->channel(1));
return audioBus.release();
}
static void
add_buffer_to_goplist (MpegPsMux * mux, GstBuffer * buf)
{
GstBufferListIterator *it;
if (mux->gop_list == NULL)
mux->gop_list = gst_buffer_list_new ();
it = gst_buffer_list_iterate (mux->gop_list);
/* move iterator to end */
while (gst_buffer_list_iterator_next_group (it)) {
/* .. */
}
gst_buffer_list_iterator_add_group (it);
gst_buffer_list_iterator_add (it, buf);
gst_buffer_list_iterator_free (it);
}
static void
gst_fragment_init (GstFragment * fragment)
{
GstFragmentPrivate *priv;
fragment->priv = priv = GST_FRAGMENT_GET_PRIVATE (fragment);
g_mutex_init (&fragment->priv->lock);
priv->buffer_list = gst_buffer_list_new ();
priv->size = 0;
priv->buffer_iterator = gst_buffer_list_iterate (priv->buffer_list);
gst_buffer_list_iterator_add_group (priv->buffer_iterator);
fragment->download_start_time = g_get_real_time ();
fragment->start_time = 0;
fragment->stop_time = 0;
fragment->index = 0;
fragment->name = g_strdup ("");
fragment->completed = FALSE;
fragment->discontinuous = FALSE;
}
static GstFlowReturn
gst_rtp_j2k_depay_flush_frame (GstBaseRTPDepayload * depayload)
{
GstRtpJ2KDepay *rtpj2kdepay;
guint8 end[2];
guint8 *data;
guint avail;
GstFlowReturn ret = GST_FLOW_OK;
rtpj2kdepay = GST_RTP_J2K_DEPAY (depayload);
/* flush pending tile */
gst_rtp_j2k_depay_flush_tile (depayload);
/* last buffer take all data out of the adapter */
avail = gst_adapter_available (rtpj2kdepay->f_adapter);
if (avail == 0)
goto done;
if (avail > 2) {
GstBuffer *outbuf;
/* take the last bytes of the JPEG 2000 data to see if there is an EOC
* marker */
gst_adapter_copy (rtpj2kdepay->f_adapter, end, avail - 2, 2);
if (end[0] != 0xff && end[1] != 0xd9) {
GST_DEBUG_OBJECT (rtpj2kdepay, "no EOC marker, adding one");
/* no EOI marker, add one */
outbuf = gst_buffer_new_and_alloc (2);
data = GST_BUFFER_DATA (outbuf);
data[0] = 0xff;
data[1] = 0xd9;
gst_adapter_push (rtpj2kdepay->f_adapter, outbuf);
avail += 2;
}
if (rtpj2kdepay->buffer_list) {
GList *list;
GstBufferList *buflist;
GstBufferListIterator *it;
GST_DEBUG_OBJECT (rtpj2kdepay, "pushing buffer list of %u bytes", avail);
list = gst_adapter_take_list (rtpj2kdepay->f_adapter, avail);
buflist = gst_buffer_list_new ();
it = gst_buffer_list_iterate (buflist);
gst_buffer_list_iterator_add_group (it);
gst_buffer_list_iterator_add_list (it, list);
gst_buffer_list_iterator_free (it);
ret = gst_base_rtp_depayload_push_list (depayload, buflist);
} else {
GST_DEBUG_OBJECT (rtpj2kdepay, "pushing buffer of %u bytes", avail);
outbuf = gst_adapter_take_buffer (rtpj2kdepay->f_adapter, avail);
ret = gst_base_rtp_depayload_push (depayload, outbuf);
}
} else {
GST_WARNING_OBJECT (rtpj2kdepay, "empty packet");
gst_adapter_clear (rtpj2kdepay->f_adapter);
}
/* we accept any mh_id now */
rtpj2kdepay->last_mh_id = -1;
/* reset state */
rtpj2kdepay->next_frag = 0;
rtpj2kdepay->have_sync = FALSE;
done:
/* we can't keep headers with mh_id of 0 */
store_mheader (rtpj2kdepay, 0, NULL);
return ret;
}
static GstFlowReturn
gst_base_rtp_audio_payload_push_buffer (GstBaseRTPAudioPayload *
baseaudiopayload, GstBuffer * buffer)
{
GstBaseRTPPayload *basepayload;
GstBaseRTPAudioPayloadPrivate *priv;
GstBuffer *outbuf;
GstClockTime timestamp;
guint8 *payload;
guint payload_len;
GstFlowReturn ret;
priv = baseaudiopayload->priv;
basepayload = GST_BASE_RTP_PAYLOAD (baseaudiopayload);
payload_len = GST_BUFFER_SIZE (buffer);
timestamp = GST_BUFFER_TIMESTAMP (buffer);
GST_DEBUG_OBJECT (baseaudiopayload, "Pushing %d bytes ts %" GST_TIME_FORMAT,
payload_len, GST_TIME_ARGS (timestamp));
if (priv->buffer_list) {
/* create just the RTP header buffer */
outbuf = gst_rtp_buffer_new_allocate (0, 0, 0);
} else {
/* create buffer to hold the payload */
outbuf = gst_rtp_buffer_new_allocate (payload_len, 0, 0);
}
/* set metadata */
gst_base_rtp_audio_payload_set_meta (baseaudiopayload, outbuf, payload_len,
timestamp);
if (priv->buffer_list) {
GstBufferList *list;
GstBufferListIterator *it;
list = gst_buffer_list_new ();
it = gst_buffer_list_iterate (list);
/* add both buffers to the buffer list */
gst_buffer_list_iterator_add_group (it);
gst_buffer_list_iterator_add (it, outbuf);
gst_buffer_list_iterator_add (it, buffer);
gst_buffer_list_iterator_free (it);
GST_DEBUG_OBJECT (baseaudiopayload, "Pushing list %p", list);
ret = gst_basertppayload_push_list (basepayload, list);
} else {
/* copy payload */
payload = gst_rtp_buffer_get_payload (outbuf);
memcpy (payload, GST_BUFFER_DATA (buffer), payload_len);
gst_buffer_unref (buffer);
GST_DEBUG_OBJECT (baseaudiopayload, "Pushing buffer %p", outbuf);
ret = gst_basertppayload_push (basepayload, outbuf);
}
return ret;
}
void BufferListIterator::addGroup()
{
gst_buffer_list_iterator_add_group(m_it);
}
