/*
- * Copyright (C) 2005-2006 Andre Noll <maan@systemlinux.org>
+ * Copyright (C) 2005-2007 Andre Noll <maan@systemlinux.org>
*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
+ * Licensed under the GPL v2. For licencing details see COPYING.
*/
/** \file ortp_recv.c paraslash's ortp receiver */
#include "para.h"
#include "ortp.h"
+#include "list.h"
+#include "sched.h"
#include "recv.h"
#include "ortp_recv.cmdline.h"
#define CHUNK_SIZE 128 * 1024
-extern int msg_to_buf(mblk_t *, char *, int);
-
/**
* data specific to the ortp receiver
*
* \sa receiver receiver_node
*/
struct private_ortp_recv_data {
-
/**
*
*
uint32_t chunk_ts;
};
-static int ortp_recv_pre_select(struct receiver_node *rn,
- __unused fd_set *rfds, __unused fd_set *wfds,
- struct timeval *timeout)
+
+static int msg_to_buf(mblk_t *mp, char *buffer, int len)
{
+ mblk_t *m, *mprev;
+ size_t mlen, rlen = len;
+
+ m = mp->b_cont;
+ mprev = mp;
+ while (m != NULL) {
+ mlen = m->b_wptr - m->b_rptr;
+ if (mlen <= rlen) {
+ mblk_t *consumed = m;
+ memcpy(buffer, m->b_rptr, mlen);
+ /* go to next mblk_t */
+ mprev->b_cont = m->b_cont;
+ m = m->b_cont;
+ consumed->b_cont = NULL;
+ freeb (consumed);
+ buffer += mlen;
+ rlen -= mlen;
+ } else {
+ memcpy (buffer, m->b_rptr, rlen);
+ m->b_rptr += rlen;
+ return len;
+ }
+ }
+ return len - rlen;
+}
+
+
+static void ortp_recv_pre_select(struct sched *s, struct task *t)
+{
+ struct receiver_node *rn = t->private_data;
struct private_ortp_recv_data *pord = rn->private_data;
- struct timeval now, tmp;
+ struct timeval tmp;
- gettimeofday(&now, NULL);
- if (tv_diff(&now, &pord->next_chunk, &tmp) >= 0) {
+ if (tv_diff(now, &pord->next_chunk, &tmp) >= 0) {
tmp.tv_sec = 0;
tmp.tv_usec = 1000;
}
- if (tv_diff(timeout, &tmp, NULL) > 0)
- *timeout = tmp;
- return -1; /* we did not modify the fd sets */
+ if (tv_diff(&s->timeout, &tmp, NULL) > 0)
+ s->timeout = tmp;
+ t->ret = 1;
}
-static void compute_next_chunk(struct timeval *now, unsigned chunk_time,
+static void compute_next_chunk(unsigned chunk_time,
struct private_ortp_recv_data *pord)
{
struct timeval chunk_tv = {0, chunk_time};
tv_add(&chunk_tv, &pord->next_chunk, &tmp);
pord->next_chunk = tmp;
pord->timestamp += pord->chunk_ts;
- PARA_DEBUG_LOG("next chunk (ts = %d) due at %lu:%lu\n",
- pord->timestamp, pord->next_chunk.tv_sec,
- pord->next_chunk.tv_usec);
+// PARA_DEBUG_LOG("next chunk (ts = %d) due at %lu:%lu\n",
+// pord->timestamp, pord->next_chunk.tv_sec,
+// pord->next_chunk.tv_usec);
}
-/** \cond */
-#define BUF_TO_VAL(buf) (((unsigned)(buf)[1] & 0xff) + 256 \
- * ((unsigned)(buf)[0] & 0xff))
-/** \endcond */
-
-static int ortp_recv_post_select(struct receiver_node *rn, int select_ret,
- __unused fd_set *rfds, __unused fd_set *wfds)
+static void ortp_recv_post_select(__a_unused struct sched *s, struct task *t)
{
+ struct receiver_node *rn = t->private_data;
struct private_ortp_recv_data *pord = rn->private_data;
mblk_t *mp;
- int ret, packet_type, stream_type;
+ int packet_type, stream_type;
char tmpbuf[CHUNK_SIZE + 3];
- struct timeval now;
unsigned chunk_time;
+ size_t packet_size;
- gettimeofday(&now, NULL);
-// PARA_DEBUG_LOG("rn: %p, pord: %p, session: %p\n", rn, pord, pord->session);
- if (pord->start.tv_sec) {
- struct timeval diff;
- if (tv_diff(&now, &pord->next_chunk, &diff) < 0)
- return 1;
+// PARA_INFO_LOG("rn: %p, pord: %p, session: %p\n", rn, pord, pord->session);
+ t->ret = -E_ORTP_RECV_EOF;
+ if (rn->output_eof && *rn->output_eof) {
+ rn->eof = 1;
+ return;
}
+ t->ret = 1;
+ if (pord->start.tv_sec)
+ if (tv_diff(now, &pord->next_chunk, NULL) < 0)
+ return;
mp = rtp_session_recvm_with_ts(pord->session, pord->timestamp);
if (!mp) {
struct timeval min_delay = {0, 100};
// PARA_INFO_LOG("nope, chunk_ts = %d, loaded: %d, bad: %d\n",
// pord->timestamp, rn->loaded, pord->c_bad);
pord->c_bad++;
+ t->ret = -E_TOO_MANY_BAD_CHUNKS;
if ((pord->c_bad > 5000 && pord->start.tv_sec) || pord->c_bad > 10000)
- return -E_TOO_MANY_BAD_CHUNKS;
- tv_add(&now, &min_delay, &pord->next_chunk);
- return 1;
+ return;
+ t->ret = 1;
+ tv_add(now, &min_delay, &pord->next_chunk);
+ return;
}
/* okay, we have a chunk of data */
if (!pord->start.tv_sec)
- pord->start = now;
- ret = msg_to_buf(mp, tmpbuf, CHUNK_SIZE);
-// PARA_DEBUG_LOG("have it ts = %d, chunk_ts = %d, loaded: %d, "
-// "bad: %d, len: %d\n", pord->timestamp, pord->chunk_ts,
-// rn->loaded, pord->c_bad, ret);
- if (ret < ORTP_AUDIO_HEADER_LEN) {
- if (ret < 0)
- ret = -E_MSG_TO_BUF;
+ pord->start = *now;
+ t->ret = msg_to_buf(mp, tmpbuf, CHUNK_SIZE);
+ if (t->ret < ORTP_AUDIO_HEADER_LEN) {
+ rn->eof = 1;
+ if (t->ret < 0)
+ t->ret = -E_MSG_TO_BUF;
else
- ret = 0;
+ t->ret = -E_ORTP_RECV_EOF;
goto err_out;
}
+ packet_size = t->ret;
packet_type = READ_PACKET_TYPE(tmpbuf);
stream_type = READ_STREAM_TYPE(tmpbuf);
chunk_time = READ_CHUNK_TIME(tmpbuf);
switch (packet_type) {
unsigned header_len, payload_len;
case ORTP_EOF:
- ret = 0;
+ rn->eof = 1;
+ t->ret = -E_ORTP_RECV_EOF;
goto err_out;
case ORTP_BOF:
- PARA_INFO_LOG("bof (%d)\n", ret);
+ PARA_INFO_LOG("bof (%zu)\n", packet_size);
pord->have_header = 1;
/* fall through */
case ORTP_DATA:
if (!pord->have_header && stream_type)
/* can't use the data, wait for header */
goto success;
- if (ret + rn->loaded >= CHUNK_SIZE + ORTP_AUDIO_HEADER_LEN) {
- ret = -E_OVERRUN;
+ t->ret = -E_OVERRUN;
+ if (packet_size + rn->loaded >= CHUNK_SIZE + ORTP_AUDIO_HEADER_LEN)
goto err_out;
- }
- if (ret > ORTP_AUDIO_HEADER_LEN) {
+ if (packet_size > ORTP_AUDIO_HEADER_LEN) {
memcpy(rn->buf + rn->loaded, tmpbuf + ORTP_AUDIO_HEADER_LEN,
- ret - ORTP_AUDIO_HEADER_LEN);
- rn->loaded += ret - ORTP_AUDIO_HEADER_LEN;
+ packet_size - ORTP_AUDIO_HEADER_LEN);
+ rn->loaded += packet_size - ORTP_AUDIO_HEADER_LEN;
}
goto success;
case ORTP_HEADER:
header_len = READ_HEADER_LEN(tmpbuf);
- PARA_DEBUG_LOG("header packet (%d bytes), header len: %d\n",
- ret, header_len);
+ PARA_DEBUG_LOG("header packet (%zu bytes), header len: %d\n",
+ packet_size, header_len);
if (!pord->have_header) {
pord->have_header = 1;
memcpy(rn->buf, tmpbuf + ORTP_AUDIO_HEADER_LEN,
- ret - ORTP_AUDIO_HEADER_LEN);
- rn->loaded = ret - ORTP_AUDIO_HEADER_LEN;
+ packet_size - ORTP_AUDIO_HEADER_LEN);
+ rn->loaded = packet_size - ORTP_AUDIO_HEADER_LEN;
goto success;
}
- if (header_len + ORTP_AUDIO_HEADER_LEN > ret) {
- ret = -E_INVALID_HEADER;
+ t->ret = -E_INVALID_HEADER;
+ if (header_len + ORTP_AUDIO_HEADER_LEN > packet_size)
goto err_out;
- }
- payload_len = ret - ORTP_AUDIO_HEADER_LEN - header_len;
-// PARA_INFO_LOG("len: %d header_len: %d, payload_len: %d, loaded: %d\n", ret,
-// header_len, payload_len, rn->loaded);
- if (rn->loaded + payload_len > CHUNK_SIZE) {
- ret = -E_OVERRUN;
+ payload_len = packet_size - ORTP_AUDIO_HEADER_LEN - header_len;
+ t->ret = -E_OVERRUN;
+ if (rn->loaded + payload_len > CHUNK_SIZE)
goto err_out;
- }
if (payload_len)
memcpy(rn->buf + rn->loaded, tmpbuf
- + (ret - payload_len), payload_len);
+ + (packet_size - payload_len), payload_len);
rn->loaded += payload_len;
goto success;
}
success:
+ t->ret = 1;
freemsg(mp);
if (pord->c_bad) {
pord->c_bad = 0;
- pord->next_chunk = now;
+ pord->next_chunk = *now;
}
- compute_next_chunk(&now, chunk_time, pord);
- return 1;
+ compute_next_chunk(chunk_time, pord);
+ return;
err_out:
+ rn->eof = 1;
freemsg(mp);
- return ret;
}
static void ortp_shutdown(void)
{
int ret;
- struct ortp_recv_args_info *tmp = para_calloc(sizeof(struct ortp_recv_args_info));
+ struct ortp_recv_args_info *tmp =
+ para_calloc(sizeof(struct ortp_recv_args_info));
ret = ortp_recv_cmdline_parser(argc, argv, tmp)? -E_ORTP_SYNTAX : 1;
if (ret > 0)
static int ortp_recv_open(struct receiver_node *rn)
{
struct private_ortp_recv_data *pord;
- struct ortp_recv_args_info *conf = rn->conf;
+ struct ortp_recv_args_info *c = rn->conf;
rn->buf = para_calloc(CHUNK_SIZE);
rn->private_data = para_calloc(sizeof(struct private_ortp_recv_data));
pord = rn->private_data;
pord->session = rtp_session_new(RTP_SESSION_RECVONLY);
- PARA_NOTICE_LOG("receiving from %s:%d\n", conf->host_arg, conf->port_arg);
- rtp_session_set_local_addr(pord->session, conf->host_arg, conf->port_arg);
+ PARA_NOTICE_LOG("receiving from %s:%d\n", c->host_arg, c->port_arg);
+ rtp_session_set_local_addr(pord->session, c->host_arg, c->port_arg);
+ rtp_session_set_remote_addr(pord->session, c->host_arg, c->port_arg);
rtp_session_set_payload_type(pord->session, PAYLOAD_AUDIO_CONTINUOUS);
- if (conf->jitter_compensation_arg) {
- rtp_session_enable_adaptive_jitter_compensation(pord->session, TRUE);
- rtp_session_set_jitter_compensation(pord->session,
- conf->jitter_compensation_arg);
- }
+ rtp_session_enable_adaptive_jitter_compensation(pord->session, TRUE);
+ rtp_session_set_jitter_compensation(pord->session,
+ c->jitter_compensation_arg);
return 1;
}
projects / paraslash.git / blobdiff