int
wait_proper_time(struct timeval *start, int fps,
unsigned int frame_num, int wait_flag)
/*
* wait_flag : 0 => return -1 or 0
* !0 => return -1, 0 or 1>
*
* return -1, 0 or over then 1
* -1 : no wait because too late
* 0 : no wait, just in time
* 1>: wait some second
*/
{
struct timeval now;
struct timeval elapse;
struct timeval estimate;
struct timeval now2;
int diff_usec;
int slp_c = 0;
/* start of time check */
for (;;){
gettimeofday(&now, NULL);
elapse = timeval_sub_timeval(&now, start);
estimate.tv_sec = frame_num / fps;
estimate.tv_usec = ((frame_num % fps)*1000*1000) / fps;
diff_usec = timeval_diff_usec(&estimate, &elapse);
if (!wait_flag){
break;
}
if (diff_usec <= 0){
break;
} else {
usleep(diff_usec);
timeval_add_usec(&STAT.usleep_total, diff_usec);
gettimeofday(&now2, NULL);
diff_usec = timeval_diff_usec(&now2, &now);
timeval_add_usec(&STAT.usleepr_total, diff_usec);
d3_printf(" us:%d", diff_usec);
slp_c++;
/* break; */
/* check again! (=loop again!) */
/* to cape with too short usleep */
}
}
if (diff_usec < -(1000*1000/fps)) { /* too late, skip */
d3_printf("\nfram=%u: skip", frame_num);
return -1;
}
d3_printf(" [%d]", slp_c);
STAT.usleep_count += slp_c;
return slp_c;
}
static void __agent_schedule_abs(struct ice_agent *ag, const struct timeval *tv) {
struct timeval nxt;
long long diff;
if (!ag) {
ilog(LOG_ERR, "ice ag is NULL");
return;
}
nxt = *tv;
mutex_lock(&ice_agents_timers_lock);
if (ag->last_run.tv_sec) {
/* make sure we don't run more often than we should */
diff = timeval_diff(&nxt, &ag->last_run);
if (diff < TIMER_RUN_INTERVAL * 1000)
timeval_add_usec(&nxt, TIMER_RUN_INTERVAL * 1000 - diff);
}
if (ag->next_check.tv_sec && timeval_cmp(&ag->next_check, &nxt) <= 0)
goto nope; /* already scheduled sooner */
if (!g_tree_remove(ice_agents_timers, ag))
obj_hold(ag); /* if it wasn't removed, we make a new reference */
ag->next_check = nxt;
g_tree_insert(ice_agents_timers, ag, ag);
cond_broadcast(&ice_agents_timers_cond);
nope:
mutex_unlock(&ice_agents_timers_lock);
}
static void __agent_schedule(struct ice_agent *ag, unsigned long usec) {
struct timeval nxt;
nxt = g_now;
timeval_add_usec(&nxt, usec);
__agent_schedule_abs(ag, &nxt);
}
/* agent must NOT be locked, but call must be locked in R */
static void __do_ice_check(struct ice_candidate_pair *pair) {
struct sockaddr_in6 dst;
struct packet_stream *ps = pair->packet_stream;
struct ice_agent *ag = pair->agent;
u_int32_t prio, transact[3];
if (PAIR_ISSET(pair, SUCCEEDED) && !PAIR_ISSET(pair, TO_USE))
return;
if (!ag->pwd[0].s)
return;
ZERO(dst);
dst.sin6_port = htons(pair->remote_candidate->endpoint.port);
dst.sin6_addr = pair->remote_candidate->endpoint.ip46;
dst.sin6_family = AF_INET6;
prio = ice_priority(ICT_PRFLX, pair->local_address->preference,
pair->remote_candidate->component_id);
mutex_lock(&ag->lock);
pair->retransmit = g_now;
if (!PAIR_SET(pair, IN_PROGRESS)) {
PAIR_CLEAR2(pair, FROZEN, FAILED);
pair->retransmit_ms = STUN_RETRANSMIT_INTERVAL;
pair->retransmits = 0;
}
else if (pair->retransmits > STUN_MAX_RETRANSMITS) {
__fail_pair(pair);
mutex_unlock(&ag->lock);
return;
}
else {
pair->retransmit_ms *= 2;
pair->retransmits++;
}
timeval_add_usec(&pair->retransmit, pair->retransmit_ms * 1000);
__agent_schedule_abs(pair->agent, &pair->retransmit);
memcpy(transact, pair->stun_transaction, sizeof(transact));
pair->was_controlling = AGENT_ISSET(ag, CONTROLLING);
pair->was_nominated = PAIR_ISSET(pair, TO_USE);
mutex_unlock(&ag->lock);
ilog(LOG_DEBUG, "Sending %sICE/STUN request for candidate pair "PAIR_FORMAT" from %s to %s",
PAIR_ISSET(pair, TO_USE) ? "nominating " : "",
PAIR_FMT(pair), smart_ntop_buf(&pair->local_address->addr),
smart_ntop_ep_buf(&pair->remote_candidate->endpoint));
stun_binding_request(&dst, transact, &ag->pwd[0], ag->ufrag,
AGENT_ISSET(ag, CONTROLLING), tie_breaker,
prio, &pair->local_address->addr, ps->sfd->fd.fd,
PAIR_ISSET(pair, TO_USE));
}
void ice_thread_run(void *p) {
struct ice_agent *ag;
struct call *call;
long long sleeptime;
struct timeval tv;
mutex_lock(&ice_agents_timers_lock);
while (!g_shutdown) {
gettimeofday(&g_now, NULL);
/* lock our list and get the first element */
ag = g_tree_find_first(ice_agents_timers, NULL, NULL);
/* scheduled to run? if not, we just go to sleep, otherwise we remove it from the tree,
* steal the reference and run it */
if (!ag)
goto sleep;
if (timeval_cmp(&g_now, &ag->next_check) < 0)
goto sleep;
g_tree_remove(ice_agents_timers, ag);
ZERO(ag->next_check);
ag->last_run = g_now;
mutex_unlock(&ice_agents_timers_lock);
/* this agent is scheduled to run right now */
/* lock the call */
call = ag->call;
log_info_ice_agent(ag);
rwlock_lock_r(&call->master_lock);
/* and run our checks */
__do_ice_checks(ag);
/* finally, release our reference and start over */
log_info_clear();
rwlock_unlock_r(&call->master_lock);
obj_put(ag);
mutex_lock(&ice_agents_timers_lock);
continue;
sleep:
/* figure out how long we should sleep */
sleeptime = ag ? timeval_diff(&ag->next_check, &g_now) : 100000;
sleeptime = MIN(100000, sleeptime); /* 100 ms at the most */
tv = g_now;
timeval_add_usec(&tv, sleeptime);
cond_timedwait(&ice_agents_timers_cond, &ice_agents_timers_lock, &tv);
continue;
}
mutex_unlock(&ice_agents_timers_lock);
}
/* agent must NOT be locked, but call must be locked in R */
static void __do_ice_check(struct ice_candidate_pair *pair) {
struct stream_fd *sfd = pair->sfd;
struct ice_agent *ag = pair->agent;
u_int32_t prio, transact[3];
if (PAIR_ISSET(pair, SUCCEEDED) && !PAIR_ISSET(pair, TO_USE))
return;
if (!ag->pwd[0].s)
return;
prio = ice_priority(ICT_PRFLX, pair->local_intf->unique_id,
pair->remote_candidate->component_id);
mutex_lock(&ag->lock);
pair->retransmit = g_now;
if (!PAIR_SET(pair, IN_PROGRESS)) {
PAIR_CLEAR2(pair, FROZEN, FAILED);
pair->retransmit_ms = STUN_RETRANSMIT_INTERVAL;
pair->retransmits = 0;
}
else if (pair->retransmits > STUN_MAX_RETRANSMITS) {
__fail_pair(pair);
mutex_unlock(&ag->lock);
return;
}
else {
pair->retransmit_ms *= 2;
pair->retransmits++;
}
timeval_add_usec(&pair->retransmit, pair->retransmit_ms * 1000);
__agent_schedule_abs(pair->agent, &pair->retransmit);
memcpy(transact, pair->stun_transaction, sizeof(transact));
pair->was_controlling = AGENT_ISSET(ag, CONTROLLING);
pair->was_nominated = PAIR_ISSET(pair, TO_USE);
mutex_unlock(&ag->lock);
ilog(LOG_DEBUG, "Sending %sICE/STUN request for candidate pair "PAIR_FORMAT" from %s to %s",
PAIR_ISSET(pair, TO_USE) ? "nominating " : "",
PAIR_FMT(pair), sockaddr_print_buf(&pair->local_intf->spec->local_address.addr),
endpoint_print_buf(&pair->remote_candidate->endpoint));
stun_binding_request(&pair->remote_candidate->endpoint, transact, &ag->pwd[0], ag->ufrag,
AGENT_ISSET(ag, CONTROLLING), tie_breaker,
prio, &sfd->socket,
PAIR_ISSET(pair, TO_USE));
}
void timerthread_run(void *p) {
struct timerthread *tt = p;
mutex_lock(&tt->lock);
while (!rtpe_shutdown) {
gettimeofday(&rtpe_now, NULL);
/* lock our list and get the first element */
struct timerthread_obj *tt_obj = g_tree_find_first(tt->tree, NULL, NULL);
/* scheduled to run? if not, we just go to sleep, otherwise we remove it from the tree,
* steal the reference and run it */
if (!tt_obj)
goto sleep;
if (timeval_cmp(&rtpe_now, &tt_obj->next_check) < 0)
goto sleep;
// steal reference
g_tree_remove(tt->tree, tt_obj);
ZERO(tt_obj->next_check);
tt_obj->last_run = rtpe_now;
mutex_unlock(&tt->lock);
// run and release
tt->func(tt_obj);
obj_put(tt_obj);
mutex_lock(&tt->lock);
continue;
sleep:;
/* figure out how long we should sleep */
long long sleeptime = tt_obj ? timeval_diff(&tt_obj->next_check, &rtpe_now) : 100000;
sleeptime = MIN(100000, sleeptime); /* 100 ms at the most */
struct timeval tv = rtpe_now;
timeval_add_usec(&tv, sleeptime);
cond_timedwait(&tt->cond, &tt->lock, &tv);
}
mutex_unlock(&tt->lock);
}
/* call is locked in R */
int ice_response(struct packet_stream *ps, struct sockaddr_in6 *src, struct in6_addr *dst,
struct stun_attrs *attrs, u_int32_t transaction[3])
{
struct ice_candidate_pair *pair, *opair;
struct ice_agent *ag;
struct call_media *media = ps->media;
const char *err;
unsigned int component;
struct ice_candidate *cand;
struct interface_address *ifa;
int ret, was_ctl;
__DBG("received ICE response from %s on %s", smart_ntop_port_buf(src), smart_ntop_buf(dst));
ag = media->ice_agent;
if (!ag)
return -1;
atomic64_set(&ag->last_activity, poller_now);
mutex_lock(&ag->lock);
pair = g_hash_table_lookup(ag->transaction_hash, transaction);
err = "ICE/STUN response with unknown transaction received";
if (!pair)
goto err_unlock;
was_ctl = pair->was_controlling;
mutex_unlock(&ag->lock);
ifa = pair->local_address;
ilog(LOG_DEBUG, "Received ICE/STUN response code %u for candidate pair "PAIR_FORMAT" from %s to %s",
attrs->error_code, PAIR_FMT(pair),
smart_ntop_ep_buf(&pair->remote_candidate->endpoint),
smart_ntop_buf(&ifa->addr));
/* verify endpoints */
err = "ICE/STUN response received, but source address didn't match remote candidate address";
if (memcmp(&src->sin6_addr, &pair->remote_candidate->endpoint.ip46, sizeof(src->sin6_addr)))
goto err;
if (ntohs(src->sin6_port) != pair->remote_candidate->endpoint.port)
goto err;
err = "ICE/STUN response received, but destination address didn't match local interface address";
if (memcmp(dst, &ifa->addr, sizeof(*dst)))
goto err;
if (pair->packet_stream != ps)
goto err;
PAIR_CLEAR(pair, IN_PROGRESS);
ret = 0;
/* handle all errors */
if (attrs->error_code) {
err = "ICE/STUN error received";
if (attrs->error_code != 487)
goto err;
__role_change(ag, !was_ctl);
__trigger_check(pair);
goto out;
}
/* we don't discover peer reflexive here (RFC 5245 7.1.3.2.1) as we don't expect to be behind NAT */
/* we also skip parts of 7.1.3.2.2 as we don't do server reflexive */
mutex_lock(&ag->lock);
/* check if we're in the final (controlling) phase */
if (pair->was_nominated && PAIR_CLEAR(pair, TO_USE)) {
ilog(LOG_DEBUG, "Setting nominated ICE candidate pair "PAIR_FORMAT" as valid", PAIR_FMT(pair));
PAIR_SET(pair, VALID);
g_tree_insert(ag->valid_pairs, pair, pair);
ret = __check_valid(ag);
goto out_unlock;
}
if (PAIR_SET(pair, SUCCEEDED))
goto out_unlock;
ilog(LOG_DEBUG, "Setting ICE candidate pair "PAIR_FORMAT" as succeeded", PAIR_FMT(pair));
g_tree_insert(ag->succeeded_pairs, pair, pair);
if (!ag->start_nominating.tv_sec) {
if (__check_succeeded_complete(ag)) {
ag->start_nominating = g_now;
timeval_add_usec(&ag->start_nominating, 100000);
__agent_schedule_abs(ag, &ag->start_nominating);
}
}
/* now unfreeze all other pairs from the same foundation */
for (component = 1; component <= MAX_COMPONENTS; component++) {
if (component == ps->component)
continue;
cand = __foundation_lookup(ag, &pair->remote_candidate->foundation, component);
if (!cand)
continue;
opair = __pair_lookup(ag, cand, ifa);
if (!opair)
continue;
if (PAIR_ISSET(opair, FAILED))
continue;
if (!PAIR_CLEAR(opair, FROZEN))
continue;
ilog(LOG_DEBUG, "Unfreezing related ICE pair "PAIR_FORMAT, PAIR_FMT(opair));
}
/* if this was previously nominated by the peer, it's now valid */
if (PAIR_ISSET(pair, NOMINATED)) {
PAIR_SET(pair, VALID);
g_tree_insert(ag->valid_pairs, pair, pair);
if (!AGENT_ISSET(ag, CONTROLLING))
ret = __check_valid(ag);
}
out_unlock:
mutex_unlock(&ag->lock);
out:
return ret;
err_unlock:
mutex_unlock(&ag->lock);
err:
if (err)
ilog(LOG_NOTICE, "%s (from %s on interface %s)",
err, smart_ntop_port_buf(src), smart_ntop_buf(dst));
if (pair && attrs->error_code)
__fail_pair(pair);
return 0;
}
static int __ensure_codec_handler(struct media_player *mp, AVStream *avs) {
if (mp->handler)
return 0;
// synthesise rtp payload type
struct rtp_payload_type src_pt = { .payload_type = -1 };
// src_pt.codec_def = codec_find_by_av(avs->codec->codec_id); `codec` is deprecated
src_pt.codec_def = codec_find_by_av(avs->CODECPAR->codec_id);
if (!src_pt.codec_def) {
ilog(LOG_ERR, "Attempting to play media from an unsupported file format/codec");
return -1;
}
src_pt.encoding = src_pt.codec_def->rtpname_str;
src_pt.channels = avs->CODECPAR->channels;
src_pt.clock_rate = avs->CODECPAR->sample_rate;
codec_init_payload_type(&src_pt, mp->media);
// find suitable output payload type
struct rtp_payload_type *dst_pt;
for (GList *l = mp->media->codecs_prefs_send.head; l; l = l->next) {
dst_pt = l->data;
if (dst_pt->codec_def && !dst_pt->codec_def->supplemental)
goto found;
}
dst_pt = NULL;
found:
if (!dst_pt) {
ilog(LOG_ERR, "No supported output codec found in SDP");
return -1;
}
ilog(LOG_DEBUG, "Output codec for media playback is " STR_FORMAT,
STR_FMT(&dst_pt->encoding_with_params));
// if we played anything before, scale our sync TS according to the time
// that has passed
if (mp->sync_ts_tv.tv_sec) {
long long ts_diff_us = timeval_diff(&rtpe_now, &mp->sync_ts_tv);
mp->sync_ts += ts_diff_us * dst_pt->clock_rate / 1000000 / dst_pt->codec_def->clockrate_mult;
}
mp->handler = codec_handler_make_playback(&src_pt, dst_pt, mp->sync_ts);
if (!mp->handler)
return -1;
mp->duration = avs->duration * 1000 * avs->time_base.num / avs->time_base.den;
return 0;
}
// appropriate lock must be held
static void media_player_read_packet(struct media_player *mp) {
if (!mp->fmtctx)
return;
int ret = av_read_frame(mp->fmtctx, &mp->pkt);
if (ret < 0) {
if (ret == AVERROR_EOF) {
ilog(LOG_DEBUG, "EOF reading from media stream");
return;
}
ilog(LOG_ERR, "Error while reading from media stream");
return;
}
if (!mp->fmtctx->streams) {
ilog(LOG_ERR, "No AVStream present in format context");
goto out;
}
AVStream *avs = mp->fmtctx->streams[0];
if (!avs) {
ilog(LOG_ERR, "No AVStream present in format context");
goto out;
}
if (__ensure_codec_handler(mp, avs))
goto out;
// scale pts and duration according to sample rate
long long duration_scaled = mp->pkt.duration * avs->CODECPAR->sample_rate
* avs->time_base.num / avs->time_base.den;
unsigned long long pts_scaled = mp->pkt.pts * avs->CODECPAR->sample_rate
* avs->time_base.num / avs->time_base.den;
long long us_dur = mp->pkt.duration * 1000000LL * avs->time_base.num / avs->time_base.den;
ilog(LOG_DEBUG, "read media packet: pts %llu duration %lli (scaled %llu/%lli, %lli us), "
"sample rate %i, time_base %i/%i",
(unsigned long long) mp->pkt.pts,
(long long) mp->pkt.duration,
pts_scaled,
duration_scaled,
us_dur,
avs->CODECPAR->sample_rate,
avs->time_base.num, avs->time_base.den);
// synthesise fake RTP header and media_packet context
struct rtp_header rtp = {
.timestamp = pts_scaled, // taken verbatim by handler_func_playback w/o byte swap
.seq_num = htons(mp->seq),
};
struct media_packet packet = {
.tv = rtpe_now,
.call = mp->call,
.media = mp->media,
.rtp = &rtp,
.ssrc_out = mp->ssrc_out,
};
str_init_len(&packet.raw, (char *) mp->pkt.data, mp->pkt.size);
packet.payload = packet.raw;
mp->handler->func(mp->handler, &packet);
// as this is timing sensitive and we may have spent some time decoding,
// update our global "now" timestamp
gettimeofday(&rtpe_now, NULL);
// keep track of RTP timestamps and real clock. look at the last packet we received
// and update our sync TS.
if (packet.packets_out.head) {
struct codec_packet *p = packet.packets_out.head->data;
if (p->rtp) {
mp->sync_ts = ntohl(p->rtp->timestamp);
mp->sync_ts_tv = p->to_send;
}
}
media_packet_encrypt(mp->crypt_handler->out->rtp_crypt, mp->sink, &packet);
mutex_lock(&mp->sink->out_lock);
if (media_socket_dequeue(&packet, mp->sink))
ilog(LOG_ERR, "Error sending playback media to RTP sink");
mutex_unlock(&mp->sink->out_lock);
timeval_add_usec(&mp->next_run, us_dur);
timerthread_obj_schedule_abs(&mp->tt_obj, &mp->next_run);
out:
av_packet_unref(&mp->pkt);
}
// call->master_lock held in W
static int media_player_play_init(struct media_player *mp) {
media_player_shutdown(mp);
// find call media suitable for playback
struct call_media *media;
for (GList *l = mp->ml->medias.head; l; l = l->next) {
media = l->data;
if (media->type_id != MT_AUDIO)
continue;
if (!MEDIA_ISSET(media, SEND))
continue;
if (media->streams.length == 0)
continue;
goto found;
}
media = NULL;
found:
if (!media) {
ilog(LOG_ERR, "No suitable SDP section for media playback");
return -1;
}
mp->media = media;
mp->sink = media->streams.head->data;
mp->crypt_handler = determine_handler(&transport_protocols[PROTO_RTP_AVP], media, 1);
return 0;
}
// call->master_lock held in W
static void media_player_play_start(struct media_player *mp) {
// needed to have usable duration for some formats. ignore errors.
avformat_find_stream_info(mp->fmtctx, NULL);
mp->next_run = rtpe_now;
// give ourselves a bit of a head start with decoding
timeval_add_usec(&mp->next_run, -50000);
media_player_read_packet(mp);
}
#endif
// call->master_lock held in W
int media_player_play_file(struct media_player *mp, const str *file) {
#ifdef WITH_TRANSCODING
if (media_player_play_init(mp))
return -1;
char file_s[PATH_MAX];
snprintf(file_s, sizeof(file_s), STR_FORMAT, STR_FMT(file));
int ret = avformat_open_input(&mp->fmtctx, file_s, NULL, NULL);
if (ret < 0) {
ilog(LOG_ERR, "Failed to open media file for playback: %s", av_error(ret));
return -1;
}
media_player_play_start(mp);
return 0;
#else
return -1;
#endif
}
#ifdef WITH_TRANSCODING
static int __mp_avio_read_wrap(void *opaque, uint8_t *buf, int buf_size) {
struct media_player *mp = opaque;
if (buf_size < 0)
return AVERROR(EINVAL);
if (buf_size == 0)
return 0;
if (!mp->read_pos.len)
return AVERROR_EOF;
int len = buf_size;
if (len > mp->read_pos.len)
len = mp->read_pos.len;
memcpy(buf, mp->read_pos.s, len);
str_shift(&mp->read_pos, len);
return len;
}
static int __mp_avio_read(void *opaque, uint8_t *buf, int buf_size) {
ilog(LOG_DEBUG, "__mp_avio_read(%i)", buf_size);
int ret = __mp_avio_read_wrap(opaque, buf, buf_size);
ilog(LOG_DEBUG, "__mp_avio_read(%i) = %i", buf_size, ret);
return ret;
}
int
capt_capt(opt_t *opt)
{
int frame_size;
unsigned int frame_num;
unsigned char *frame_buf_yuv, *frame_buf_rgb, *jpeg_buf;
struct timeval start;
const int fps = opt->fps_opt;
const int wait_flag = (opt->fps_opt < opt->fps_dev);
const int w = opt->width, h = opt->height;
int q = 75; /* jpeg compress quality */
int len;
char mh[PIPE_HEADER_LEN]; /* EMON system Message Header */
unsigned int ts; /* timestamp in Message Header */
frame_size = mchip_hsize() * mchip_vsize() * 3;
frame_buf_yuv = (unsigned char*)malloc(frame_size);
frame_buf_rgb = (unsigned char*)malloc(frame_size);
jpeg_buf = (unsigned char*)malloc(frame_size);
/* allocate enougth memory for jpeg_buf */
if (frame_buf_yuv == NULL || frame_buf_rgb == NULL ||jpeg_buf == NULL){
e_printf("cannot malloc for frame_buf or jpeg_buf\n");
return -1;
}
stat_init(&STAT);
ts = rand() * opt->freq;
mchip_continuous_start();
gettimeofday(&start, NULL);
STAT.start = start; /* copy struct timeval */
d2_printf("\njpegcapt: %ld.%06ld: wait_flag=%d",
start.tv_sec, start.tv_usec, wait_flag);
for (frame_num = 0; opt->max_frame == 0 || frame_num < opt->max_frame; frame_num++, ts += opt->freq){
struct timeval c, b, a; /* capture, before(encoding), after */
int d1, d2;
if (debug_level > 0 && (frame_num % opt->stat_freq)== 0){
stat_print(&STAT, frame_num);
}
if (wait_proper_time(&start, fps, frame_num, 1) < 0){
STAT.skip_count++;
continue; /* skip capture because it's too late */
}
STAT.capt_count++;
gettimeofday(&c, NULL);
mchip_continuous_read(frame_buf_yuv,
mchip_hsize()*mchip_vsize()*2);
yuv_convert(frame_buf_yuv, frame_buf_rgb,
mchip_hsize(), mchip_vsize());
gettimeofday(&b, NULL);
len = jpeg_encode(frame_buf_rgb, jpeg_buf, w, h, q);
gettimeofday(&a, NULL);
d1 = timeval_diff_usec(&b, &c);
d2 = timeval_diff_usec(&a, &b);
timeval_add_usec(&STAT.capt_total, d1);
timeval_add_usec(&STAT.jpgenc_total, d2);
d3_printf("\n frame=%d, ts=%d, jpg_len=%d, q=%d"
", t1=%d, t2=%d",
frame_num, ts, len, q, d1, d2);
if (len > opt->dsize ){
q *= 0.75;
continue; /* skip this picture */
}else if (len < opt->dsize * 0.9 && q < 90) {
q++;
}
bzero(&mh, PIPE_HEADER_LEN);
pipe_set_version(&mh, 1);
pipe_set_marker(&mh, 1);
pipe_set_length(&mh, len);
pipe_set_timestamp(&mh, ts);
if (pipe_blocked_write_block(STDOUT, &mh, jpeg_buf)
==PIPE_ERROR){
d1_printf("\npipe_blocked_write_block error!!"
"len=%d, ts=%ud", len, ts);
} else {
STAT.out_count++;
}
}
if (debug_level > 0){
stat_print(&STAT, frame_num);
}
return 0;
}
static void timeval_add_usec_check_(struct timeval *a, int64_t diff, struct timeval const *expected)
{
timeval_add_usec(a, diff);
assert(0 == timeval_cmp(a, expected));
}