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rtptheorapay: refactor buffer payloading

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This commit is contained in:
Mark Nauwelaerts 2010-05-04 16:57:11 +02:00
parent a9ed56b1ad
commit 53928a74fa
1 changed files with 72 additions and 57 deletions
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129
gst/rtp/gstrtptheorapay.c
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@ -470,70 +470,18 @@ invalid_version:
} }
static GstFlowReturn static GstFlowReturn
gst_rtp_theora_pay_handle_buffer (GstBaseRTPPayload * basepayload, gst_rtp_theora_pay_payload_buffer (GstRtpTheoraPay * rtptheorapay, guint8 TDT,
GstBuffer * buffer) guint8 * data, guint size, GstClockTime timestamp, GstClockTime duration)
{ {
GstRtpTheoraPay *rtptheorapay;
GstFlowReturn ret; GstFlowReturn ret;
guint size, newsize; guint newsize;
guint8 *data;
guint packet_len; guint packet_len;
GstClockTime duration, newduration, timestamp; GstClockTime newduration;
gboolean flush; gboolean flush;
guint8 TDT;
guint plen; guint plen;
guint8 *ppos, *payload; guint8 *ppos, *payload;
gboolean fragmented; gboolean fragmented;
rtptheorapay = GST_RTP_THEORA_PAY (basepayload);
size = GST_BUFFER_SIZE (buffer);
data = GST_BUFFER_DATA (buffer);
duration = GST_BUFFER_DURATION (buffer);
timestamp = GST_BUFFER_TIMESTAMP (buffer);
GST_DEBUG_OBJECT (rtptheorapay, "size %u, duration %" GST_TIME_FORMAT,
size, GST_TIME_ARGS (duration));
if (G_UNLIKELY (size < 1 || size > 0xffff))
goto wrong_size;
/* find packet type */
if (data[0] & 0x80) {
/* header */
if (data[0] == 0x80) {
/* identification, we need to parse this in order to get the clock rate.
*/
if (G_UNLIKELY (!gst_rtp_theora_pay_parse_id (basepayload, data, size)))
goto parse_id_failed;
TDT = 1;
} else if (data[0] == 0x81) {
/* comment */
TDT = 2;
} else if (data[0] == 0x82) {
/* setup */
TDT = 1;
} else
goto unknown_header;
} else
/* data */
TDT = 0;
if (rtptheorapay->need_headers) {
/* we need to collect the headers and construct a config string from them */
if (TDT != 0) {
GST_DEBUG_OBJECT (rtptheorapay, "collecting header, buffer %p", buffer);
/* append header to the list of headers */
rtptheorapay->headers = g_list_append (rtptheorapay->headers, buffer);
ret = GST_FLOW_OK;
goto done;
} else {
if (!gst_rtp_theora_pay_finish_headers (basepayload))
goto header_error;
rtptheorapay->need_headers = FALSE;
}
}
/* size increases with packet length and 2 bytes size eader. */ /* size increases with packet length and 2 bytes size eader. */
newduration = rtptheorapay->payload_duration; newduration = rtptheorapay->payload_duration;
if (duration != GST_CLOCK_TIME_NONE) if (duration != GST_CLOCK_TIME_NONE)
@ -543,7 +491,8 @@ gst_rtp_theora_pay_handle_buffer (GstBaseRTPPayload * basepayload,
packet_len = gst_rtp_buffer_calc_packet_len (newsize, 0, 0); packet_len = gst_rtp_buffer_calc_packet_len (newsize, 0, 0);
/* check buffer filled against length and max latency */ /* check buffer filled against length and max latency */
flush = gst_basertppayload_is_filled (basepayload, packet_len, newduration); flush = gst_basertppayload_is_filled (GST_BASE_RTP_PAYLOAD (rtptheorapay),
packet_len, newduration);
/* we can store up to 15 theora packets in one RTP packet. */ /* we can store up to 15 theora packets in one RTP packet. */
flush |= (rtptheorapay->payload_pkts == 15); flush |= (rtptheorapay->payload_pkts == 15);
/* flush if we have a new TDT */ /* flush if we have a new TDT */
@ -616,6 +565,72 @@ gst_rtp_theora_pay_handle_buffer (GstBaseRTPPayload * basepayload,
rtptheorapay->payload_duration += duration; rtptheorapay->payload_duration += duration;
} }
} }
return ret;
}
static GstFlowReturn
gst_rtp_theora_pay_handle_buffer (GstBaseRTPPayload * basepayload,
GstBuffer * buffer)
{
GstRtpTheoraPay *rtptheorapay;
GstFlowReturn ret;
guint size;
guint8 *data;
GstClockTime duration, timestamp;
guint8 TDT;
rtptheorapay = GST_RTP_THEORA_PAY (basepayload);
size = GST_BUFFER_SIZE (buffer);
data = GST_BUFFER_DATA (buffer);
duration = GST_BUFFER_DURATION (buffer);
timestamp = GST_BUFFER_TIMESTAMP (buffer);
GST_DEBUG_OBJECT (rtptheorapay, "size %u, duration %" GST_TIME_FORMAT,
size, GST_TIME_ARGS (duration));
if (G_UNLIKELY (size < 1 || size > 0xffff))
goto wrong_size;
/* find packet type */
if (data[0] & 0x80) {
/* header */
if (data[0] == 0x80) {
/* identification, we need to parse this in order to get the clock rate.
*/
if (G_UNLIKELY (!gst_rtp_theora_pay_parse_id (basepayload, data, size)))
goto parse_id_failed;
TDT = 1;
} else if (data[0] == 0x81) {
/* comment */
TDT = 2;
} else if (data[0] == 0x82) {
/* setup */
TDT = 1;
} else
goto unknown_header;
} else
/* data */
TDT = 0;
if (rtptheorapay->need_headers) {
/* we need to collect the headers and construct a config string from them */
if (TDT != 0) {
GST_DEBUG_OBJECT (rtptheorapay, "collecting header, buffer %p", buffer);
/* append header to the list of headers */
rtptheorapay->headers = g_list_append (rtptheorapay->headers, buffer);
ret = GST_FLOW_OK;
goto done;
} else {
if (!gst_rtp_theora_pay_finish_headers (basepayload))
goto header_error;
rtptheorapay->need_headers = FALSE;
}
}
ret = gst_rtp_theora_pay_payload_buffer (rtptheorapay, TDT, data, size,
timestamp, duration);
gst_buffer_unref (buffer); gst_buffer_unref (buffer);
done: done: