mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-12-29 19:50:40 +00:00
rtph264pay: Extract sending fragments into _payload_nal_fragment
This commit is contained in:
Jan Alexander Steffens (heftig)
Nicolas Dufresne
parent
e493f0ba09
commit
b3291620ca
1 changed files with 102 additions and 79 deletions
|
|
@ -737,6 +737,11 @@ gst_rtp_h264_pay_payload_nal_single (GstRTPBasePayload * basepayload,
|
|||
GstBuffer * paybuf, GstClockTime dts, GstClockTime pts, gboolean end_of_au,
|
||||
gboolean delta_unit, gboolean discont);
|
||||
|
||||
static GstFlowReturn
|
||||
gst_rtp_h264_pay_payload_nal_fragment (GstRTPBasePayload * basepayload,
|
||||
GstBuffer * paybuf, GstClockTime dts, GstClockTime pts, gboolean end_of_au,
|
||||
gboolean delta_unit, gboolean discont, guint8 nal_header);
|
||||
|
||||
static GstFlowReturn
|
||||
gst_rtp_h264_pay_send_sps_pps (GstRTPBasePayload * basepayload,
|
||||
GstRtpH264Pay * rtph264pay, GstClockTime dts, GstClockTime pts)
|
||||
|
|
@ -796,12 +801,8 @@ gst_rtp_h264_pay_payload_nal (GstRTPBasePayload * basepayload,
|
|||
GstFlowReturn ret;
|
||||
guint8 nal_header;
|
||||
guint8 nal_type;
|
||||
guint packet_len, payload_len, mtu;
|
||||
GstBuffer *outbuf;
|
||||
guint8 *payload;
|
||||
GstBufferList *list = NULL;
|
||||
guint packet_len, mtu;
|
||||
gboolean send_spspps;
|
||||
GstRTPBuffer rtp = { NULL };
|
||||
guint size = gst_buffer_get_size (paybuf);
|
||||
|
||||
rtph264pay = GST_RTP_H264_PAY (basepayload);
|
||||
|
|
@ -897,89 +898,111 @@ gst_rtp_h264_pay_payload_nal (GstRTPBasePayload * basepayload,
|
|||
end_of_au, delta_unit, discont);
|
||||
} else {
|
||||
/* fragmentation Units FU-A */
|
||||
guint fragment_size;
|
||||
int ii = 0, start = 1, end = 0, pos = 0;
|
||||
ret = gst_rtp_h264_pay_payload_nal_fragment (basepayload, paybuf, dts, pts,
|
||||
end_of_au, delta_unit, discont, nal_header);
|
||||
}
|
||||
return ret;
|
||||
}
|
||||
|
||||
static GstFlowReturn
|
||||
gst_rtp_h264_pay_payload_nal_fragment (GstRTPBasePayload * basepayload,
|
||||
GstBuffer * paybuf, GstClockTime dts, GstClockTime pts, gboolean end_of_au,
|
||||
gboolean delta_unit, gboolean discont, guint8 nal_header)
|
||||
{
|
||||
GstRtpH264Pay *rtph264pay;
|
||||
GstFlowReturn ret;
|
||||
guint payload_len, mtu;
|
||||
GstBuffer *outbuf;
|
||||
guint8 *payload;
|
||||
GstBufferList *list = NULL;
|
||||
GstRTPBuffer rtp = { NULL };
|
||||
guint size = gst_buffer_get_size (paybuf);
|
||||
|
||||
guint fragment_size;
|
||||
int ii = 0, start = 1, end = 0, pos = 0;
|
||||
|
||||
rtph264pay = GST_RTP_H264_PAY (basepayload);
|
||||
mtu = GST_RTP_BASE_PAYLOAD_MTU (rtph264pay);
|
||||
|
||||
GST_DEBUG_OBJECT (basepayload,
|
||||
"NAL Unit DOES NOT fit in one packet datasize=%d mtu=%d", size, mtu);
|
||||
|
||||
pos++;
|
||||
size--;
|
||||
|
||||
ret = GST_FLOW_OK;
|
||||
|
||||
GST_DEBUG_OBJECT (basepayload, "Using FU-A fragmentation for data size=%d",
|
||||
size);
|
||||
|
||||
/* We keep 2 bytes for FU indicator and FU Header */
|
||||
payload_len = gst_rtp_buffer_calc_payload_len (mtu - 2, 0, 0);
|
||||
|
||||
list = gst_buffer_list_new_sized ((size / payload_len) + 1);
|
||||
|
||||
while (end == 0) {
|
||||
fragment_size = size < payload_len ? size : payload_len;
|
||||
GST_DEBUG_OBJECT (basepayload,
|
||||
"NAL Unit DOES NOT fit in one packet datasize=%d mtu=%d", size, mtu);
|
||||
"Inside FU-A fragmentation fragment_size=%d iteration=%d", fragment_size,
|
||||
ii);
|
||||
|
||||
pos++;
|
||||
size--;
|
||||
/* use buffer lists
|
||||
* create buffer without payload containing only the RTP header
|
||||
* (memory block at index 0) */
|
||||
outbuf = gst_rtp_buffer_new_allocate (2, 0, 0);
|
||||
|
||||
ret = GST_FLOW_OK;
|
||||
gst_rtp_buffer_map (outbuf, GST_MAP_WRITE, &rtp);
|
||||
|
||||
GST_DEBUG_OBJECT (basepayload, "Using FU-A fragmentation for data size=%d",
|
||||
size);
|
||||
GST_BUFFER_DTS (outbuf) = dts;
|
||||
GST_BUFFER_PTS (outbuf) = pts;
|
||||
payload = gst_rtp_buffer_get_payload (&rtp);
|
||||
|
||||
/* We keep 2 bytes for FU indicator and FU Header */
|
||||
payload_len = gst_rtp_buffer_calc_payload_len (mtu - 2, 0, 0);
|
||||
|
||||
list = gst_buffer_list_new_sized ((size / payload_len) + 1);
|
||||
|
||||
while (end == 0) {
|
||||
fragment_size = size < payload_len ? size : payload_len;
|
||||
GST_DEBUG_OBJECT (basepayload,
|
||||
"Inside FU-A fragmentation fragment_size=%d iteration=%d", fragment_size,
|
||||
ii);
|
||||
|
||||
/* use buffer lists
|
||||
* create buffer without payload containing only the RTP header
|
||||
* (memory block at index 0) */
|
||||
outbuf = gst_rtp_buffer_new_allocate (2, 0, 0);
|
||||
|
||||
gst_rtp_buffer_map (outbuf, GST_MAP_WRITE, &rtp);
|
||||
|
||||
GST_BUFFER_DTS (outbuf) = dts;
|
||||
GST_BUFFER_PTS (outbuf) = pts;
|
||||
payload = gst_rtp_buffer_get_payload (&rtp);
|
||||
|
||||
if (fragment_size == size) {
|
||||
GST_DEBUG_OBJECT (basepayload, "end size=%d iteration=%d", size, ii);
|
||||
end = 1;
|
||||
}
|
||||
|
||||
/* If it's the last fragment and the end of this au, mark the end of
|
||||
* slice */
|
||||
gst_rtp_buffer_set_marker (&rtp, end && end_of_au);
|
||||
|
||||
/* FU indicator */
|
||||
payload[0] = (nal_header & 0x60) | FU_A_TYPE_ID;
|
||||
|
||||
/* FU Header */
|
||||
payload[1] = (start << 7) | (end << 6) | (nal_header & 0x1f);
|
||||
|
||||
gst_rtp_buffer_unmap (&rtp);
|
||||
|
||||
/* insert payload memory block */
|
||||
gst_rtp_copy_video_meta (rtph264pay, outbuf, paybuf);
|
||||
gst_buffer_copy_into (outbuf, paybuf, GST_BUFFER_COPY_MEMORY, pos,
|
||||
fragment_size);
|
||||
|
||||
if (!delta_unit)
|
||||
/* Only the first packet sent should not have the flag */
|
||||
delta_unit = TRUE;
|
||||
else
|
||||
GST_BUFFER_FLAG_SET (outbuf, GST_BUFFER_FLAG_DELTA_UNIT);
|
||||
|
||||
if (discont) {
|
||||
GST_BUFFER_FLAG_SET (outbuf, GST_BUFFER_FLAG_DISCONT);
|
||||
/* Only the first packet sent should have the flag */
|
||||
discont = FALSE;
|
||||
}
|
||||
|
||||
/* add the buffer to the buffer list */
|
||||
gst_buffer_list_add (list, outbuf);
|
||||
|
||||
|
||||
size -= fragment_size;
|
||||
pos += fragment_size;
|
||||
ii++;
|
||||
start = 0;
|
||||
if (fragment_size == size) {
|
||||
GST_DEBUG_OBJECT (basepayload, "end size=%d iteration=%d", size, ii);
|
||||
end = 1;
|
||||
}
|
||||
|
||||
ret = gst_rtp_base_payload_push_list (basepayload, list);
|
||||
gst_buffer_unref (paybuf);
|
||||
/* If it's the last fragment and the end of this au, mark the end of
|
||||
* slice */
|
||||
gst_rtp_buffer_set_marker (&rtp, end_of_au);
|
||||
|
||||
/* FU indicator */
|
||||
payload[0] = (nal_header & 0x60) | FU_A_TYPE_ID;
|
||||
|
||||
/* FU Header */
|
||||
payload[1] = (start << 7) | (end << 6) | (nal_header & 0x1f);
|
||||
|
||||
gst_rtp_buffer_unmap (&rtp);
|
||||
|
||||
/* insert payload memory block */
|
||||
gst_rtp_copy_video_meta (rtph264pay, outbuf, paybuf);
|
||||
gst_buffer_copy_into (outbuf, paybuf, GST_BUFFER_COPY_MEMORY, pos,
|
||||
fragment_size);
|
||||
|
||||
if (!delta_unit)
|
||||
/* Only the first packet sent should not have the flag */
|
||||
delta_unit = TRUE;
|
||||
else
|
||||
GST_BUFFER_FLAG_SET (outbuf, GST_BUFFER_FLAG_DELTA_UNIT);
|
||||
|
||||
if (discont) {
|
||||
GST_BUFFER_FLAG_SET (outbuf, GST_BUFFER_FLAG_DISCONT);
|
||||
/* Only the first packet sent should have the flag */
|
||||
discont = FALSE;
|
||||
}
|
||||
|
||||
/* add the buffer to the buffer list */
|
||||
gst_buffer_list_add (list, outbuf);
|
||||
|
||||
|
||||
size -= fragment_size;
|
||||
pos += fragment_size;
|
||||
ii++;
|
||||
start = 0;
|
||||
}
|
||||
|
||||
ret = gst_rtp_base_payload_push_list (basepayload, list);
|
||||
gst_buffer_unref (paybuf);
|
||||
return ret;
|
||||
}
|
||||
|
||||
|
|
|
|||
Loading…
Reference in a new issue