static void
gst_rtp_ulpfec_dec_start (GstRtpUlpFecDec * self, GstBufferList * buflist,
guint8 fec_pt, guint16 lost_seq)
{
guint fec_packets = 0;
gsize i;
g_assert (NULL == self->info_media);
g_assert (0 == self->info_fec->len);
g_assert (0 == self->info_arr->len);
g_array_set_size (self->info_arr, gst_buffer_list_length (buflist));
for (i = 0;
i < gst_buffer_list_length (buflist) && !self->lost_packet_from_storage;
++i) {
GstBuffer *buffer = gst_buffer_list_get (buflist, i);
RtpUlpFecMapInfo *info = RTP_FEC_MAP_INFO_NTH (self, i);
if (!rtp_ulpfec_map_info_map (gst_buffer_ref (buffer), info))
g_assert_not_reached ();
if (fec_pt == gst_rtp_buffer_get_payload_type (&info->rtp)) {
GST_DEBUG_RTP_PACKET (self, "rtp header (fec)", &info->rtp);
++fec_packets;
if (rtp_ulpfec_buffer_is_valid (&info->rtp)) {
GST_DEBUG_FEC_PACKET (self, &info->rtp);
g_ptr_array_add (self->info_fec, GUINT_TO_POINTER (i));
}
} else {
GST_LOG_RTP_PACKET (self, "rtp header (incoming)", &info->rtp);
if (lost_seq == gst_rtp_buffer_get_seq (&info->rtp)) {
GST_DEBUG_OBJECT (self, "Received lost packet from from the storage");
g_list_free (self->info_media);
self->info_media = NULL;
self->lost_packet_from_storage = TRUE;
}
self->info_media =
g_list_insert_sorted_with_data (self->info_media,
GUINT_TO_POINTER (i), _compare_fec_map_info, self);
}
}
if (!self->lost_packet_from_storage) {
self->fec_packets_received += fec_packets;
self->fec_packets_rejected += fec_packets - self->info_fec->len;
}
}
static GstFlowReturn
gst_hls_sink_chain_list (GstPad * pad, GstObject * parent, GstBufferList * list)
{
guint i, len;
GstBuffer *buffer;
GstFlowReturn ret;
GstHlsSink *sink = GST_HLS_SINK_CAST (parent);
if (sink->target_duration == 0 || sink->waiting_fku)
return gst_proxy_pad_chain_list_default (pad, parent, list);
GST_DEBUG_OBJECT (pad, "chaining each group in list as a merged buffer");
len = gst_buffer_list_length (list);
ret = GST_FLOW_OK;
for (i = 0; i < len; i++) {
buffer = gst_buffer_list_get (list, i);
if (!sink->waiting_fku)
gst_hls_sink_check_schedule_next_key_unit (sink, buffer);
ret = gst_pad_chain (pad, gst_buffer_ref (buffer));
if (ret != GST_FLOW_OK)
break;
}
gst_buffer_list_unref (list);
return ret;
}
static GstBufferList *
create_buffer_list (void)
{
guint len;
GstBuffer *buffer;
mylist = gst_buffer_list_new ();
fail_if (mylist == NULL);
mycaps = gst_caps_from_string ("application/x-gst-check");
fail_if (mycaps == NULL);
len = gst_buffer_list_length (mylist);
fail_if (len != 0);
buffer = gst_buffer_new_and_alloc (sizeof (gint));
gst_buffer_fill (buffer, 0, &values[0], sizeof (gint));
gst_buffer_list_add (mylist, buffer);
buffer = gst_buffer_new_and_alloc (sizeof (gint));
gst_buffer_fill (buffer, 0, &values[1], sizeof (gint));
gst_buffer_list_add (mylist, buffer);
buffer = gst_buffer_new_and_alloc (sizeof (gint));
gst_buffer_fill (buffer, 0, &values[2], sizeof (gint));
gst_buffer_list_add (mylist, buffer);
gst_pad_set_caps (mysrcpad, mycaps);
gst_caps_unref (mycaps);
return mylist;
}
static void copyGstreamerBuffersToAudioChannel(GstBufferList* buffers, AudioChannel* audioChannel)
{
#ifdef GST_API_VERSION_1
gsize offset = 0;
for (unsigned i = 0; i < gst_buffer_list_length(buffers); i++) {
GstBuffer* buffer = gst_buffer_list_get(buffers, i);
if (!buffer)
continue;
GstMapInfo info;
gst_buffer_map(buffer, &info, GST_MAP_READ);
memcpy(audioChannel->mutableData() + offset, reinterpret_cast<float*>(info.data), info.size);
offset += info.size / sizeof(float);
gst_buffer_unmap(buffer, &info);
}
#else
GstBufferListIterator* iter = gst_buffer_list_iterate(buffers);
gst_buffer_list_iterator_next_group(iter);
GstBuffer* buffer = gst_buffer_list_iterator_merge_group(iter);
if (buffer) {
memcpy(audioChannel->mutableData(), reinterpret_cast<float*>(GST_BUFFER_DATA(buffer)), GST_BUFFER_SIZE(buffer));
gst_buffer_unref(buffer);
}
gst_buffer_list_iterator_free(iter);
#endif
}
/*
* Chain list function for testing buffer lists
*/
static GstFlowReturn
rtp_pipeline_chain_list (GstPad * pad, GstObject * parent, GstBufferList * list)
{
guint i, len;
fail_if (!list);
/*
* Count the size of the payload in the buffer list.
*/
len = gst_buffer_list_length (list);
/* Loop through all groups */
for (i = 0; i < len; i++) {
GstBuffer *paybuf;
GstMemory *mem;
gint size;
paybuf = gst_buffer_list_get (list, i);
/* only count real data which is expected in last memory block */
fail_unless (gst_buffer_n_memory (paybuf) > 1);
mem = gst_buffer_get_memory_range (paybuf, gst_buffer_n_memory (paybuf) - 1,
1);
size = gst_memory_get_sizes (mem, NULL, NULL);
gst_memory_unref (mem);
chain_list_bytes_received += size;
}
gst_buffer_list_unref (list);
return GST_FLOW_OK;
}
static GstFlowReturn
gst_rtp_base_audio_payload_push_buffer (GstRTPBaseAudioPayload *
baseaudiopayload, GstBuffer * buffer, GstClockTime timestamp)
{
GstRTPBasePayload *basepayload;
GstRTPBaseAudioPayloadPrivate *priv;
GstBuffer *outbuf;
guint payload_len;
GstFlowReturn ret;
priv = baseaudiopayload->priv;
basepayload = GST_RTP_BASE_PAYLOAD (baseaudiopayload);
payload_len = gst_buffer_get_size (buffer);
GST_DEBUG_OBJECT (baseaudiopayload, "Pushing %d bytes ts %" GST_TIME_FORMAT,
payload_len, GST_TIME_ARGS (timestamp));
/* create just the RTP header buffer */
outbuf = gst_rtp_base_payload_allocate_output_buffer (basepayload, 0, 0, 0);
/* set metadata */
gst_rtp_base_audio_payload_set_meta (baseaudiopayload, outbuf, payload_len,
timestamp);
if (priv->buffer_list) {
GstBufferList *list;
guint i, len;
list = gst_buffer_list_new ();
len = gst_buffer_list_length (list);
for (i = 0; i < len; i++) {
/* FIXME */
g_warning ("bufferlist not implemented");
gst_buffer_list_add (list, outbuf);
gst_buffer_list_add (list, buffer);
}
GST_DEBUG_OBJECT (baseaudiopayload, "Pushing list %p", list);
ret = gst_rtp_base_payload_push_list (basepayload, list);
} else {
CopyMetaData data;
/* copy payload */
data.pay = baseaudiopayload;
data.outbuf = outbuf;
gst_buffer_foreach_meta (buffer, foreach_metadata, &data);
outbuf = gst_buffer_append (outbuf, buffer);
GST_DEBUG_OBJECT (baseaudiopayload, "Pushing buffer %p", outbuf);
ret = gst_rtp_base_payload_push (basepayload, outbuf);
}
return ret;
}
static void copyGstreamerBuffersToAudioChannel(GstBufferList* buffers, AudioChannel* audioChannel)
{
float* destination = audioChannel->mutableData();
unsigned bufferCount = gst_buffer_list_length(buffers);
for (unsigned i = 0; i < bufferCount; ++i) {
GstBuffer* buffer = gst_buffer_list_get(buffers, i);
ASSERT(buffer);
gsize bufferSize = gst_buffer_get_size(buffer);
gst_buffer_extract(buffer, 0, destination, bufferSize);
destination += bufferSize / sizeof(float);
}
}
static GstFlowReturn
mpegpsmux_push_gop_list (MpegPsMux * mux)
{
GstFlowReturn flow;
g_assert (mux->gop_list != NULL);
GST_DEBUG_OBJECT (mux, "Sending pending GOP of %u buffers",
gst_buffer_list_length (mux->gop_list));
flow = gst_pad_push_list (mux->srcpad, mux->gop_list);
mux->gop_list = NULL;
return flow;
}
static GstFlowReturn
gst_file_sink_render_list (GstBaseSink * bsink, GstBufferList * buffer_list)
{
GstFlowReturn flow;
GstBuffer **buffers;
GstFileSink *sink;
guint8 *mem_nums;
guint total_mems;
guint i, num_buffers;
gboolean sync_after = FALSE;
sink = GST_FILE_SINK_CAST (bsink);
num_buffers = gst_buffer_list_length (buffer_list);
if (num_buffers == 0)
goto no_data;
/* extract buffers from list and count memories */
buffers = g_newa (GstBuffer *, num_buffers);
mem_nums = g_newa (guint8, num_buffers);
for (i = 0, total_mems = 0; i < num_buffers; ++i) {
buffers[i] = gst_buffer_list_get (buffer_list, i);
mem_nums[i] = gst_buffer_n_memory (buffers[i]);
total_mems += mem_nums[i];
if (GST_BUFFER_FLAG_IS_SET (buffers[i], GST_BUFFER_FLAG_SYNC_AFTER))
sync_after = TRUE;
}
flow =
gst_file_sink_render_buffers (sink, buffers, num_buffers, mem_nums,
total_mems);
if (flow == GST_FLOW_OK && sync_after) {
if (fflush (sink->file) || fsync (fileno (sink->file))) {
GST_ELEMENT_ERROR (sink, RESOURCE, WRITE,
(_("Error while writing to file \"%s\"."), sink->filename),
("%s", g_strerror (errno)));
flow = GST_FLOW_ERROR;
}
}
return flow;
no_data:
{
GST_LOG_OBJECT (sink, "empty buffer list");
return GST_FLOW_OK;
}
}
static GstFlowReturn
sink_chain_list (GstPad * pad, GstObject * parent, GstBufferList * list)
{
GstDtlsDec *self = GST_DTLS_DEC (parent);
GstFlowReturn ret = GST_FLOW_OK;
GstPad *other_pad;
list = gst_buffer_list_make_writable (list);
gst_buffer_list_foreach (list, process_buffer_from_list, self);
if (gst_buffer_list_length (list) == 0) {
GST_DEBUG_OBJECT (self, "Not produced any buffers");
gst_buffer_list_unref (list);
return GST_FLOW_OK;
}
g_mutex_lock (&self->src_mutex);
other_pad = self->src;
if (other_pad)
gst_object_ref (other_pad);
g_mutex_unlock (&self->src_mutex);
if (other_pad) {
GST_LOG_OBJECT (self, "decoded buffer list with length %u, pushing",
gst_buffer_list_length (list));
ret = gst_pad_push_list (other_pad, list);
gst_object_unref (other_pad);
} else {
GST_LOG_OBJECT (self, "dropped buffer list with length %d, not linked",
gst_buffer_list_length (list));
gst_buffer_list_unref (list);
}
return ret;
}
/*
* Render function for testing udpsink with buffer lists
*/
static GstFlowReturn
udpsink_render_list (GstBaseSink * sink, GstBufferList * list)
{
guint i, num;
num = gst_buffer_list_length (list);
for (i = 0; i < num; ++i) {
GstBuffer *buf = gst_buffer_list_get (list, i);
gsize size = gst_buffer_get_size (buf);
GST_DEBUG ("rendered %" G_GSIZE_FORMAT " bytes", size);
render_list_bytes_received += size;
}
return GST_FLOW_OK;
}
/**
* @brief Handle list of buffers.
*
* GstBaseSink method implementation.
*/
static GstFlowReturn
gst_tensor_sink2_render_list (GstBaseSink * sink, GstBufferList * buffer_list)
{
GstTensorSink2 *self;
GstBuffer *buffer;
guint i;
guint num_buffers;
self = GST_TENSOR_SINK2 (sink);
num_buffers = gst_buffer_list_length (buffer_list);
for (i = 0; i < num_buffers; i++) {
buffer = gst_buffer_list_get (buffer_list, i);
gst_tensor_sink2_render_buffer (self, buffer);
}
return GST_FLOW_OK;
}
static GstFlowReturn
gst_rtp_base_depayload_chain_list (GstPad * pad, GstObject * parent,
GstBufferList * list)
{
GstRTPBaseDepayloadClass *bclass;
GstRTPBaseDepayload *basedepay;
GstFlowReturn flow_ret;
GstBuffer *buffer;
guint i, len;
basedepay = GST_RTP_BASE_DEPAYLOAD_CAST (parent);
bclass = GST_RTP_BASE_DEPAYLOAD_GET_CLASS (basedepay);
flow_ret = GST_FLOW_OK;
/* chain each buffer in list individually */
len = gst_buffer_list_length (list);
if (len == 0)
goto done;
for (i = 0; i < len; i++) {
buffer = gst_buffer_list_get (list, i);
/* handle_buffer takes ownership of input buffer */
/* FIXME: add a way to steal buffers from list as we will unref it anyway */
gst_buffer_ref (buffer);
/* Should we fix up any missing timestamps for list buffers here
* (e.g. set to first or previous timestamp in list) or just assume
* the's a jitterbuffer that will have done that for us? */
flow_ret = gst_rtp_base_depayload_handle_buffer (basedepay, bclass, buffer);
if (flow_ret != GST_FLOW_OK)
break;
}
done:
gst_buffer_list_unref (list);
return flow_ret;
}
static GstFlowReturn
gst_fd_sink_render_list (GstBaseSink * bsink, GstBufferList * buffer_list)
{
GstFlowReturn flow;
GstBuffer **buffers;
GstFdSink *sink;
guint8 *mem_nums;
guint total_mems;
guint i, num_buffers;
sink = GST_FD_SINK_CAST (bsink);
num_buffers = gst_buffer_list_length (buffer_list);
if (num_buffers == 0)
goto no_data;
/* extract buffers from list and count memories */
buffers = g_newa (GstBuffer *, num_buffers);
mem_nums = g_newa (guint8, num_buffers);
for (i = 0, total_mems = 0; i < num_buffers; ++i) {
buffers[i] = gst_buffer_list_get (buffer_list, i);
mem_nums[i] = gst_buffer_n_memory (buffers[i]);
total_mems += mem_nums[i];
}
flow =
gst_fd_sink_render_buffers (sink, buffers, num_buffers, mem_nums,
total_mems);
return flow;
no_data:
{
GST_LOG_OBJECT (sink, "empty buffer list");
return GST_FLOW_OK;
}
}
static GstFlowReturn
gst_rtp_vraw_pay_handle_buffer (GstRTPBasePayload * payload, GstBuffer * buffer)
{
GstRtpVRawPay *rtpvrawpay;
GstFlowReturn ret = GST_FLOW_OK;
gfloat packets_per_packline;
guint pgroups_per_packet;
guint packlines_per_list, buffers_per_list;
guint lines_delay; /* after how many packed lines we push out a buffer list */
guint last_line; /* last pack line number we pushed out a buffer list */
guint line, offset;
guint8 *p0, *yp, *up, *vp;
guint ystride, uvstride;
guint xinc, yinc;
guint pgroup;
guint mtu;
guint width, height;
gint field, fields;
GstVideoFormat format;
GstVideoFrame frame;
gint interlaced;
gboolean use_buffer_lists;
GstBufferList *list = NULL;
GstRTPBuffer rtp = { NULL, };
rtpvrawpay = GST_RTP_VRAW_PAY (payload);
gst_video_frame_map (&frame, &rtpvrawpay->vinfo, buffer, GST_MAP_READ);
GST_LOG_OBJECT (rtpvrawpay, "new frame of %" G_GSIZE_FORMAT " bytes",
gst_buffer_get_size (buffer));
/* get pointer and strides of the planes */
p0 = GST_VIDEO_FRAME_PLANE_DATA (&frame, 0);
yp = GST_VIDEO_FRAME_COMP_DATA (&frame, 0);
up = GST_VIDEO_FRAME_COMP_DATA (&frame, 1);
vp = GST_VIDEO_FRAME_COMP_DATA (&frame, 2);
ystride = GST_VIDEO_FRAME_COMP_STRIDE (&frame, 0);
uvstride = GST_VIDEO_FRAME_COMP_STRIDE (&frame, 1);
mtu = GST_RTP_BASE_PAYLOAD_MTU (payload);
/* amount of bytes for one pixel */
pgroup = rtpvrawpay->pgroup;
width = GST_VIDEO_INFO_WIDTH (&rtpvrawpay->vinfo);
height = GST_VIDEO_INFO_HEIGHT (&rtpvrawpay->vinfo);
interlaced = GST_VIDEO_INFO_IS_INTERLACED (&rtpvrawpay->vinfo);
format = GST_VIDEO_INFO_FORMAT (&rtpvrawpay->vinfo);
yinc = rtpvrawpay->yinc;
xinc = rtpvrawpay->xinc;
/* after how many packed lines we push out a buffer list */
lines_delay = GST_ROUND_UP_4 (height / rtpvrawpay->chunks_per_frame);
/* calculate how many buffers we expect to store in a single buffer list */
pgroups_per_packet = (mtu - (12 + 14)) / pgroup;
packets_per_packline = width / (xinc * pgroups_per_packet * 1.0);
packlines_per_list = height / (yinc * rtpvrawpay->chunks_per_frame);
buffers_per_list = packlines_per_list * packets_per_packline;
buffers_per_list = GST_ROUND_UP_8 (buffers_per_list);
use_buffer_lists = (rtpvrawpay->chunks_per_frame < (height / yinc));
fields = 1 + interlaced;
/* start with line 0, offset 0 */
for (field = 0; field < fields; field++) {
line = field;
offset = 0;
last_line = 0;
if (use_buffer_lists)
list = gst_buffer_list_new_sized (buffers_per_list);
/* write all lines */
while (line < height) {
guint left, pack_line;
GstBuffer *out;
guint8 *outdata, *headers;
gboolean next_line, complete = FALSE;
guint length, cont, pixels;
/* get the max allowed payload length size, we try to fill the complete MTU */
left = gst_rtp_buffer_calc_payload_len (mtu, 0, 0);
out = gst_rtp_buffer_new_allocate (left, 0, 0);
if (field == 0) {
GST_BUFFER_PTS (out) = GST_BUFFER_PTS (buffer);
} else {
GST_BUFFER_PTS (out) = GST_BUFFER_PTS (buffer) +
GST_BUFFER_DURATION (buffer) / 2;
}
gst_rtp_buffer_map (out, GST_MAP_WRITE, &rtp);
outdata = gst_rtp_buffer_get_payload (&rtp);
GST_LOG_OBJECT (rtpvrawpay, "created buffer of size %u for MTU %u", left,
mtu);
/*
* 0 1 2 3
* 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | Extended Sequence Number | Length |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* |F| Line No |C| Offset |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | Length |F| Line No |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* |C| Offset | .
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ .
* . .
* . Two (partial) lines of video data .
* . .
* +---------------------------------------------------------------+
*/
/* need 2 bytes for the extended sequence number */
*outdata++ = 0;
*outdata++ = 0;
left -= 2;
/* the headers start here */
headers = outdata;
/* make sure we can fit at least *one* header and pixel */
if (!(left > (6 + pgroup))) {
gst_rtp_buffer_unmap (&rtp);
gst_buffer_unref (out);
goto too_small;
}
/* while we can fit at least one header and one pixel */
while (left > (6 + pgroup)) {
/* we need a 6 bytes header */
left -= 6;
/* get how may bytes we need for the remaining pixels */
pixels = width - offset;
length = (pixels * pgroup) / xinc;
if (left >= length) {
/* pixels and header fit completely, we will write them and skip to the
* next line. */
next_line = TRUE;
} else {
/* line does not fit completely, see how many pixels fit */
pixels = (left / pgroup) * xinc;
length = (pixels * pgroup) / xinc;
next_line = FALSE;
}
GST_LOG_OBJECT (rtpvrawpay, "filling %u bytes in %u pixels", length,
pixels);
left -= length;
/* write length */
*outdata++ = (length >> 8) & 0xff;
*outdata++ = length & 0xff;
/* write line no */
*outdata++ = ((line >> 8) & 0x7f) | ((field << 7) & 0x80);
*outdata++ = line & 0xff;
if (next_line) {
/* go to next line we do this here to make the check below easier */
line += yinc;
}
/* calculate continuation marker */
cont = (left > (6 + pgroup) && line < height) ? 0x80 : 0x00;
/* write offset and continuation marker */
*outdata++ = ((offset >> 8) & 0x7f) | cont;
*outdata++ = offset & 0xff;
if (next_line) {
/* reset offset */
offset = 0;
GST_LOG_OBJECT (rtpvrawpay, "go to next line %u", line);
} else {
offset += pixels;
GST_LOG_OBJECT (rtpvrawpay, "next offset %u", offset);
}
if (!cont)
break;
}
GST_LOG_OBJECT (rtpvrawpay, "consumed %u bytes",
(guint) (outdata - headers));
/* second pass, read headers and write the data */
while (TRUE) {
guint offs, lin;
/* read length and cont */
length = (headers[0] << 8) | headers[1];
lin = ((headers[2] & 0x7f) << 8) | headers[3];
offs = ((headers[4] & 0x7f) << 8) | headers[5];
cont = headers[4] & 0x80;
pixels = length / pgroup;
headers += 6;
GST_LOG_OBJECT (payload,
"writing length %u, line %u, offset %u, cont %d", length, lin, offs,
cont);
switch (format) {
case GST_VIDEO_FORMAT_RGB:
case GST_VIDEO_FORMAT_RGBA:
case GST_VIDEO_FORMAT_BGR:
case GST_VIDEO_FORMAT_BGRA:
case GST_VIDEO_FORMAT_UYVY:
case GST_VIDEO_FORMAT_UYVP:
offs /= xinc;
memcpy (outdata, p0 + (lin * ystride) + (offs * pgroup), length);
outdata += length;
break;
case GST_VIDEO_FORMAT_AYUV:
{
gint i;
guint8 *datap;
datap = p0 + (lin * ystride) + (offs * 4);
for (i = 0; i < pixels; i++) {
*outdata++ = datap[2];
*outdata++ = datap[1];
*outdata++ = datap[3];
datap += 4;
}
break;
}
case GST_VIDEO_FORMAT_I420:
{
gint i;
guint uvoff;
guint8 *yd1p, *yd2p, *udp, *vdp;
yd1p = yp + (lin * ystride) + (offs);
yd2p = yd1p + ystride;
uvoff = (lin / yinc * uvstride) + (offs / xinc);
udp = up + uvoff;
vdp = vp + uvoff;
for (i = 0; i < pixels; i++) {
*outdata++ = *yd1p++;
*outdata++ = *yd1p++;
*outdata++ = *yd2p++;
*outdata++ = *yd2p++;
*outdata++ = *udp++;
*outdata++ = *vdp++;
}
break;
}
case GST_VIDEO_FORMAT_Y41B:
{
gint i;
guint uvoff;
guint8 *ydp, *udp, *vdp;
ydp = yp + (lin * ystride) + offs;
uvoff = (lin / yinc * uvstride) + (offs / xinc);
udp = up + uvoff;
vdp = vp + uvoff;
for (i = 0; i < pixels; i++) {
*outdata++ = *udp++;
*outdata++ = *ydp++;
*outdata++ = *ydp++;
*outdata++ = *vdp++;
*outdata++ = *ydp++;
*outdata++ = *ydp++;
}
break;
}
default:
gst_rtp_buffer_unmap (&rtp);
gst_buffer_unref (out);
goto unknown_sampling;
}
if (!cont)
break;
}
if (line >= height) {
GST_LOG_OBJECT (rtpvrawpay, "field/frame complete, set marker");
gst_rtp_buffer_set_marker (&rtp, TRUE);
complete = TRUE;
}
gst_rtp_buffer_unmap (&rtp);
if (left > 0) {
GST_LOG_OBJECT (rtpvrawpay, "we have %u bytes left", left);
gst_buffer_resize (out, 0, gst_buffer_get_size (out) - left);
}
/* Now either push out the buffer directly */
if (!use_buffer_lists) {
ret = gst_rtp_base_payload_push (payload, out);
continue;
}
/* or add the buffer to buffer list ... */
gst_buffer_list_add (list, out);
/* .. and check if we need to push out the list */
pack_line = (line - field) / fields;
if (complete || (pack_line > last_line && pack_line % lines_delay == 0)) {
GST_LOG_OBJECT (rtpvrawpay, "pushing list of %u buffers up to pack "
"line %u", gst_buffer_list_length (list), pack_line);
ret = gst_rtp_base_payload_push_list (payload, list);
list = NULL;
if (!complete)
list = gst_buffer_list_new_sized (buffers_per_list);
last_line = pack_line;
}
}
}
gst_video_frame_unmap (&frame);
gst_buffer_unref (buffer);
return ret;
/* ERRORS */
unknown_sampling:
{
GST_ELEMENT_ERROR (payload, STREAM, FORMAT,
(NULL), ("unimplemented sampling"));
gst_video_frame_unmap (&frame);
gst_buffer_unref (buffer);
return GST_FLOW_NOT_SUPPORTED;
}
too_small:
{
GST_ELEMENT_ERROR (payload, RESOURCE, NO_SPACE_LEFT,
(NULL), ("not enough space to send at least one pixel"));
gst_video_frame_unmap (&frame);
gst_buffer_unref (buffer);
return GST_FLOW_NOT_SUPPORTED;
}
}
uint BufferList::length() const
{
return gst_buffer_list_length(object<GstBufferList>());
}
static GstFlowReturn
gst_rtp_base_audio_payload_push_buffer (GstRTPBaseAudioPayload *
baseaudiopayload, GstBuffer * buffer, GstClockTime timestamp)
{
GstRTPBasePayload *basepayload;
GstRTPBaseAudioPayloadPrivate *priv;
GstBuffer *outbuf;
guint8 *payload;
guint payload_len;
GstFlowReturn ret;
priv = baseaudiopayload->priv;
basepayload = GST_RTP_BASE_PAYLOAD (baseaudiopayload);
payload_len = gst_buffer_get_size (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_rtp_base_audio_payload_set_meta (baseaudiopayload, outbuf, payload_len,
timestamp);
if (priv->buffer_list) {
GstBufferList *list;
guint i, len;
list = gst_buffer_list_new ();
len = gst_buffer_list_length (list);
for (i = 0; i < len; i++) {
/* FIXME */
g_warning ("bufferlist not implemented");
gst_buffer_list_add (list, outbuf);
gst_buffer_list_add (list, buffer);
}
GST_DEBUG_OBJECT (baseaudiopayload, "Pushing list %p", list);
ret = gst_rtp_base_payload_push_list (basepayload, list);
} else {
GstRTPBuffer rtp = { NULL };
/* copy payload */
gst_rtp_buffer_map (outbuf, GST_MAP_WRITE, &rtp);
payload = gst_rtp_buffer_get_payload (&rtp);
gst_buffer_extract (buffer, 0, payload, payload_len);
gst_rtp_buffer_unmap (&rtp);
gst_buffer_unref (buffer);
GST_DEBUG_OBJECT (baseaudiopayload, "Pushing buffer %p", outbuf);
ret = gst_rtp_base_payload_push (basepayload, outbuf);
}
return ret;
}
