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elphel-apps-astreamer
Commit be058841 authored by Mikhail Karpenko's avatar Mikhail Karpenko
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Add unmodified sources from elphel353 project

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html/*
attic/*
/.project
/.cproject
/.pydevproject
/.externalToolBuilders
/.settings
.directory
generated*
sysroots
bitbake-logs
/temp/
*.o
*.cgi
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the library. If this is what you want to do, use the GNU Lesser General
Public License instead of this License. But first, please read
<http://www.gnu.org/philosophy/why-not-lgpl.html>.
Makefile 0 → 100644
View file @ be058841
# Runs 'make', 'make install', and 'make clean' in specified subdirectories
SUBDIRS := src
INSTALLDIRS = $(SUBDIRS:%=install-%)
CLEANDIRS = $(SUBDIRS:%=clean-%)
#TARGETDIR=$(DESTDIR)/www/pages
all: $(SUBDIRS)
@echo "make all top"
$(SUBDIRS):
$(MAKE) -C $@
install: $(INSTALLDIRS)
@echo "make install top"
$(INSTALLDIRS):
$(MAKE) -C $(@:install-%=%) install
clean: $(CLEANDIRS)
@echo "make clean top"
$(CLEANDIRS):
$(MAKE) -C $(@:clean-%=%) clean
.PHONY: all install clean $(SUBDIRS) $(INSTALLDIRS) $(CLEANDIRS)
README.md 0 → 100644
View file @ be058841
# elphel-apps-astreamer
run_bitbake.sh 0 → 100755
View file @ be058841
#!/bin/bash
args="$@"
while (( "$#" )); do
shift
done
DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
echo "Launching bitbake $args"
cd $DIR/../../poky
. ./oe-init-build-env
bitbake $args | sed -u 's@| @@'
exit 0
src/Makefile 0 → 100644
View file @ be058841
AXIS_USABLE_LIBS = UCLIBC GLIBC
AXIS_AUTO_DEPEND = yes
-include $(AXIS_TOP_DIR)/tools/build/Rules.axis
INSTALL ?= install_elinux
INSTALL_PATH = $(prefix)/usr/local
INCDIR = $(AXIS_KERNEL_DIR)/include
LDFLAGS = -Wl -s -L$(prefix)/lib -lpthread -lasound
CXXFLAGS = -Wall -O2 -I$(INCDIR)
STREAMER_OBJS = main.o streamer.o audio.o video.o socket.o rtsp.o rtp_stream.o helpers.o parameters.o
SRCS = main.cpp streamer.cpp audio.cpp video.cpp socket.cpp rtsp.cpp rtp_stream.cpp helpers.cpp parameters.cpp
PROG = str
all: dependency $(PROG)
clean:
rm -f *.o *.ver *.mp *~ core* $(PROG)
$(PROG): $(STREAMER_OBJS)
$(CXX) $(LDFLAGS) -o $@ $(STREAMER_OBJS) -lpthread -asound
%.o: %.cpp
$(CXX) $(CXXFLAGS) -c -o $@ $<
#install: $(PROG)
install: clean $(PROG)
$(INSTALL) $(PROG) $(INSTALL_PATH)/bin/$(PROG)
configsubs:
src/audio.cpp 0 → 100644
View file @ be058841
#include "audio.h"
#include "helper.h"
#include <iostream>
#include <sys/ioctl.h>
#include <arpa/inet.h>
#include <asm/elphel/c313a.h>
#include "parameters.h"
#undef AUDIO_DEBUG
//#define AUDIO_DEBUG
#undef AUDIO_DEBUG_2
//#define AUDIO_DEBUG_2
#ifdef AUDIO_DEBUG
#define D(a) a
#else
#define D(a)
#endif
#ifdef AUDIO_DEBUG_2
#define D2(a) a
#else
#define D2(a)
#endif
//#define SAMPLE_TIME 50 // in milliseconds
#define SAMPLE_TIME 20 // in milliseconds
#define BUFFER_TIME 1000 // in milliseconds
using namespace std;
Audio::Audio(bool enable, int sample_rate, int channels) {
//cerr << "Audio::Audio()" << endl;
snd_pcm_hw_params_t *hw_params;
snd_pcm_sw_params_t *sw_params;
_present = false;
stream_name = "audio";
// normalize audio settings
if(sample_rate == 0) sample_rate = SAMPLE_RATE;
if(sample_rate > 48000) sample_rate = 48000;
if(sample_rate < 11025) sample_rate = 11025;
_sample_rate = sample_rate;
if(channels == 0) channels = SAMPLE_CHANNELS;
if(channels < 1) channels = 1;
if(channels > 2) channels = 2;
_channels = channels;
_volume = 65535;
_volume *= 90;
_volume /= 100;
SSRC = 10;
// here sbuffer_len in samples, not bytes
sbuffer_len = _sample_rate * SAMPLE_TIME;
sbuffer_len /= 1000;
sbuffer_len -= sbuffer_len % 2;
D( cerr << "sbuffer_len == " << sbuffer_len << endl;)
_ptype = 97;
sbuffer = NULL;
if(enable) {
// open ALSA for capturing
int err;
sbuffer = new short[sbuffer_len * 2 * _channels];
bool init_ok = false;
while(true) {
if((err = snd_pcm_open(&capture_handle, "default", SND_PCM_STREAM_CAPTURE, 0)) < 0)
break;
snd_pcm_hw_params_alloca(&hw_params);
if((err = snd_pcm_hw_params_any(capture_handle, hw_params)) < 0)
break;
if((err = snd_pcm_hw_params_set_access(capture_handle, hw_params, SND_PCM_ACCESS_RW_INTERLEAVED)) < 0)
break;
if((err = snd_pcm_hw_params_set_format(capture_handle, hw_params, SND_PCM_FORMAT_S16_BE)) < 0)
break;
unsigned int t = _sample_rate;
if((err = snd_pcm_hw_params_set_rate_near(capture_handle, hw_params, &t, 0)) < 0)
break;
unsigned int period_time = SAMPLE_TIME * 1000;
if((err = snd_pcm_hw_params_set_period_time_near(capture_handle, hw_params, &period_time, 0)) < 0)
break;
D( cerr << "period_time == " << period_time << endl;)
unsigned int buffer_time = BUFFER_TIME * 1000;
if((err = snd_pcm_hw_params_set_buffer_time_near(capture_handle, hw_params, &buffer_time, 0)) < 0)
break;
D( cerr << "buffer_time == " << buffer_time << endl;)
_sample_rate = t;
if((err = snd_pcm_hw_params_set_channels(capture_handle, hw_params, _channels)) < 0)
break;
if((err = snd_pcm_hw_params(capture_handle, hw_params)) < 0)
break;
snd_pcm_sw_params_alloca(&sw_params);
if((err = snd_pcm_sw_params_current(capture_handle, sw_params)) < 0)
break;
if((err = snd_pcm_sw_params_set_tstamp_mode(capture_handle, sw_params, SND_PCM_TSTAMP_ENABLE)) < 0)
break;
if((err = snd_pcm_sw_params(capture_handle, sw_params)) < 0)
break;
// if((err = snd_pcm_prepare(capture_handle)) < 0)
// break;
init_ok = true;
break;
}
if(init_ok) {
D( cerr << endl << "Audio init: ok; with sample rate: " << _sample_rate << "; and channels: " << _channels << endl;)
// cerr << endl << "Audio init: ok; with sample rate: " << _sample_rate << "; and channels: " << _channels << endl;
_present = true;
_play = false;
set_volume(_volume);
// create thread...
init_pthread((void *)this);
} else {
D( cerr << "Audio: init FAIL!" << endl;)
// cerr << "Audio: init FAIL!" << endl;
_present = false;
}
}
}
Audio::~Audio(void) {
//cerr << "Audio::~Audio()" << endl;
if(_present) {
snd_pcm_drop(capture_handle);
snd_pcm_close(capture_handle);
snd_config_update_free_global();
//cerr << "--------------->> close audio" << endl;
}
if(sbuffer != NULL)
delete[] sbuffer;
}
void Audio::set_capture_volume(int nvolume) {
if(_present == false)
return;
// int err;
snd_mixer_t *mixer;
snd_mixer_elem_t *elem;
snd_mixer_selem_id_t *sid;
// allocated at stack, so can't free it!
snd_mixer_selem_id_alloca(&sid);
snd_mixer_open(&mixer, 0);
snd_mixer_attach(mixer, "default");
snd_mixer_selem_register(mixer, NULL, NULL);
snd_mixer_load(mixer);
for(elem = snd_mixer_first_elem(mixer); elem; elem = snd_mixer_elem_next(elem)) {
snd_mixer_selem_get_id(elem, sid);
if(!snd_mixer_selem_is_active(elem))
continue;
// set volume at percents for capture elements
snd_mixer_elem_t *selem = snd_mixer_find_selem(mixer, sid);
if(selem == NULL) {
break;
}
long volume_min = 0;
long volume_max = 0;
if(snd_mixer_selem_get_capture_volume_range(selem, &volume_min, &volume_max) == 0) {
// set volume only for capture
if(nvolume > 65535)
nvolume = 65535;
if(nvolume < 0)
nvolume = 0;
long long vol_new = volume_max;
vol_new *= nvolume;
vol_new /= 65535;
long vol = 0;
snd_mixer_selem_get_capture_volume(selem, SND_MIXER_SCHN_FRONT_LEFT, &vol);
snd_mixer_selem_set_capture_volume_all(selem, vol_new);
D( cerr << "element " << snd_mixer_selem_id_get_name(sid) << " - OLD min vol == " << volume_min << "; max vol == " << volume_max << "; volume == " << vol << endl;)
D( snd_mixer_selem_get_capture_volume(selem, SND_MIXER_SCHN_FRONT_LEFT, &vol);)
D( cerr << "element " << snd_mixer_selem_id_get_name(sid) << " - NEW min vol == " << volume_min << "; max vol == " << volume_max << "; volume == " << vol << endl;)
}
}
_volume = nvolume;
snd_mixer_close(mixer);
}
void Audio::Start(string ip, long port, int ttl) {
if(!_present)
return;
D( cerr << "Audio ---> Start !!!" << endl;)
//cerr << "Audio ---> Start !!!" << endl;
//is_first = true;
timestamp_rtcp = 0;
f_tv.tv_sec = 0;
f_tv.tv_usec = 0;
snd_pcm_prepare(capture_handle);
snd_pcm_reset(capture_handle);
//cerr << "Audio ---> Start !!! - done" << endl;
// get FPGA/sys time delta
Parameters *params = Parameters::instance();
unsigned long write_data[6];
write_data[0] = FRAMEPARS_GETFPGATIME;
write_data[1] = 0;
params->write(write_data, sizeof(unsigned long) * 2);
struct timeval tv_1;
tv_1.tv_sec = params->getGPValue(G_SECONDS);
tv_1.tv_usec = params->getGPValue(G_MICROSECONDS);
struct timeval tv_sys;
gettimeofday(&tv_sys, NULL);
params->write(write_data, sizeof(unsigned long) * 2);
struct timeval tv_2;
tv_2.tv_sec = params->getGPValue(G_SECONDS);
tv_2.tv_usec = params->getGPValue(G_MICROSECONDS);
unsigned long delta = tv_2.tv_sec - tv_1.tv_sec;
delta *= 1000000;
delta += tv_2.tv_usec;
delta -= tv_1.tv_usec;
delta /= 2;
struct timeval tv_fpga;
tv_fpga.tv_sec = tv_1.tv_sec;
tv_fpga.tv_usec = tv_1.tv_usec + delta;
tv_fpga.tv_sec += tv_fpga.tv_usec / 1000000;
tv_fpga.tv_usec = tv_fpga.tv_usec % 1000000;
bool fpga_gt = false;
if(tv_fpga.tv_sec > tv_sys.tv_sec)
fpga_gt = true;
if (tv_fpga.tv_sec == tv_sys.tv_sec)
if(tv_fpga.tv_usec > tv_sys.tv_usec)
fpga_gt = true;
struct timeval *tv_b = &tv_sys;
struct timeval *tv_s = &tv_fpga;
if(fpga_gt) {
tv_b = &tv_fpga;
tv_s = &tv_sys;
}
delta_fpga_sys = 0;
delta_fpga_sys = tv_b->tv_sec - tv_s->tv_sec;
delta_fpga_sys *= 1000000;
delta_fpga_sys += tv_b->tv_usec;
delta_fpga_sys -= tv_s->tv_usec;
if(fpga_gt)
delta_fpga_sys = -delta_fpga_sys;
//fprintf(stderr, "first time == %d:%06d; second time == %d:%06d\n", tv_1.tv_sec, tv_1.tv_usec, tv_2.tv_sec, tv_2.tv_usec);
//fprintf(stderr, "FPGA time == %d:%06d; system time == %d:%06d\n", tv_fpga.tv_sec, tv_fpga.tv_usec, tv_sys.tv_sec, tv_sys.tv_usec);
//fprintf(stderr, "times delta == %06d\n\n", delta_fpga_sys);
RTP_Stream::Start(ip, port, ttl);
}
void Audio::Stop(void) {
if(!_present)
return;
// cerr << "Audio ---> Stop !!!" << endl;
D( cerr << "Audio ---> Stop !!!" << endl;)
RTP_Stream::Stop();
f_tv.tv_sec = 0;
f_tv.tv_usec = 0;
}
long Audio::process(void) {
// static timeval ts_old = {0, 0};
long ret = 0;
snd_pcm_status_t *status;
snd_pcm_status_alloca(&status);
snd_timestamp_t ts;
unsigned long avail;
//bool first = true;
for(int i = 0; i < 4; i++) {
snd_pcm_status(capture_handle, status);
long slen = snd_pcm_readi(capture_handle, sbuffer, sbuffer_len);
if(slen > 0) {
// update statistics for RTCP
avail = (unsigned long)snd_pcm_status_get_avail(status);
if(avail > 0) {
snd_pcm_status_get_tstamp(status, &ts);
timestamp = timestamp_rtcp;
timestamp += avail;
if(timestamp > 0xFFFFFFFF)
timestamp &= 0xFFFFFFFF;
f_tv.tv_sec = ts.tv_sec;
f_tv.tv_usec = ts.tv_usec;
// correct A time to V time for RTCP sync packets
f_tv.tv_sec -= 1;
f_tv.tv_usec += 1000000;
f_tv.tv_sec -= delta_fpga_sys / 1000000;
f_tv.tv_usec -= delta_fpga_sys % 1000000;
f_tv.tv_sec += f_tv.tv_usec / 1000000;
f_tv.tv_usec = f_tv.tv_usec % 1000000;
/*
if(is_first) {
struct timeval tv;
gettimeofday(&tv, NULL);
is_first = false;
fprintf(stderr, "AUDIO first with time: %d:%06d at: %d:%06d\n", f_tv.tv_sec, f_tv.tv_usec, tv.tv_sec, tv.tv_usec);
sec = f_tv.tv_sec;
} else {
if(sec != f_tv.tv_sec) {
sec = f_tv.tv_sec;
}
}
*/
}
/*
snd_pcm_status(capture_handle, status);
snd_pcm_status_get_tstamp(status, &ts);
avail = (unsigned long)snd_pcm_status_get_avail(status);
struct timeval tv_real;
gettimeofday(&tv_real, NULL);
struct timeval t_delta = {0, 0};
if(ts_old.tv_sec != 0 && ts_old.tv_usec != 0) {
long td = ts.tv_sec - ts_old.tv_sec;
td *= 1000000;
td += ts.tv_usec;
td -= ts_old.tv_usec;
t_delta.tv_sec = td / 1000000;
t_delta.tv_usec = td % 1000000;
}
fprintf(stderr, "status timestamp == %d:%06d at %d:%06d; delta == %d:%06d, slen == %d; avail == %d\n", ts.tv_sec, ts.tv_usec, tv_real.tv_sec, tv_real.tv_usec, t_delta.tv_sec, t_delta.tv_usec, slen, avail);
ts_old = ts;
*/
// --==--
ret += slen;
process_send(slen);
// check again what buffer is not empty
snd_pcm_status(capture_handle, status);
avail = (unsigned long)snd_pcm_status_get_avail(status);
//c++;
if(avail >= (unsigned long)sbuffer_len) {
//cerr << "process() again - available " << avail << " samples" << endl;
continue;
}
//if(c != 0)
//cerr << "process " << c << " times" << endl;
return ret;
}
if(slen < 0) {
cerr << "audio process(): slen < 0" << endl;
break;
}
if(slen == 0) {
cerr << "audio process(): slen == 0" << endl;
break;
}
}
return ret;
}
long Audio::process_send(long sample_len) {
static unsigned short packet_num = 0;
unsigned short pnum;
void *m = (void *)sbuffer;
int i;
long offset = 0;
#define LEN 1200
static unsigned char *d = NULL;
if(d == NULL) {
d = (unsigned char *)malloc(LEN + 20);
}
int to_send = sample_len * 2 * _channels;
int size = to_send;
long count = 0;
uint32_t ts;
for(;;) {
if(to_send == 0)
break;
if(to_send > LEN) {
i = LEN;
to_send -= i;
} else {
i = to_send;
to_send = 0;
}
ts = htonl(timestamp_rtcp);
uint32_t ts_delta = i / 2;
ts_delta /= _channels;
timestamp_rtcp += ts_delta;
if(timestamp_rtcp > 0xFFFFFFFF)
timestamp_rtcp &= 0xFFFFFFFF;
//
packet_num++;
pnum = htons(packet_num);
count += i;
// fill RTP header
d[0] = 0x80;
if(count >= size)
d[1] = _ptype + 0x80;
else
d[1] = _ptype;
memcpy((void *)&d[2], (void *)&pnum, 2);
memcpy((void *)&d[4], (void *)&ts, 4);
memcpy((void *)&d[8], (void *)&SSRC, 4);
// fill data
memcpy((void *)&d[12], (void *)((char *)m + offset), i);
offset += i;
// send packet
rtp_packets++;
rtp_octets += i; // data + MJPEG header
rtp_socket->send((void *)d, i + 12);
}
return sample_len;
}
src/audio.h 0 → 100644
View file @ be058841
#ifndef _AUDIO__H_
#define _AUDIO__H_
#include <string>
#define __cplusplus 1
#include <alsa/asoundlib.h>
#include <pthread.h>
#include "rtp_stream.h"
using namespace std;
#define SAMPLE_RATE 44100
#define SAMPLE_CHANNELS 2
class Audio : public RTP_Stream {
public:
Audio(bool enable, int sample_rate = SAMPLE_RATE, int channels = SAMPLE_CHANNELS);
virtual ~Audio(void);
long sample_rate(void) { return _sample_rate; };
long channels(void) { return _channels; };
bool present(void) { return _present; };
long volume(void) { return _volume; };
void set_volume(long volume) { set_capture_volume(volume); }
void Start(string ip, long port, int ttl = -1);
void Stop(void);
protected:
int fd;
snd_pcm_t *capture_handle;
short *sbuffer;
long sbuffer_len;
bool _present;
long _sample_rate;
long _channels;
long _volume;
long capture(void);
long process(void);
long process_send(long sample_len);
void set_capture_volume(int volume);
uint64_t timestamp_rtcp;
long delta_fpga_sys; // A/V clocks delta for RTCP
bool is_first;
bool is_first2;
};
//extern Audio *audio;
#endif // _AUDIO__H_
src/helper.h 0 → 100644
View file @ be058841
#ifndef __H_HELPER__
#define __H_HELPER__
#include <sys/time.h>
inline long time_delta_us(const struct timeval &tv_1, const struct timeval &tv_2) {
long tu = tv_1.tv_usec;
if(tv_1.tv_sec != tv_2.tv_sec)
tu += (tv_1.tv_sec - tv_2.tv_sec) * 1000000;
tu -= tv_2.tv_usec;
return tu;
}
inline struct timeval time_plus(struct timeval tv_1, const struct timeval &tv_2) {
tv_1.tv_sec += tv_2.tv_sec;
tv_1.tv_usec += tv_2.tv_usec;
if(tv_1.tv_usec >= 1000000) {
tv_1.tv_sec++;
tv_1.tv_usec -= 1000000;
}
return tv_1;
}
inline struct timeval time_minus(struct timeval tv_1, const struct timeval &tv_2) {
tv_1.tv_sec -= tv_2.tv_sec;
tv_1.tv_usec += 1000000;
tv_1.tv_usec -= tv_2.tv_usec;
if(tv_1.tv_usec >= 1000000) {
tv_1.tv_usec -= 1000000;
} else {
tv_1.tv_sec--;
}
return tv_1;
}
#endif
src/helpers.cpp 0 → 100644
View file @ be058841
#include "helpers.h"
#include <iostream>
using namespace std;
bool String::split(const string &str, char delimiter, string &left, string &right) {
left = "";
right = "";
int i = str.find(delimiter);
//cerr << "_______" << endl;
//cerr << "delimiter == |" << delimiter << "|, i == " << i << endl;
if(i > 0 && i < (int)str.length()) {
const char *c = str.c_str();
//cerr <<
left.insert(0, c, i);
right.insert(0, &c[i + 1], str.length() - i - 1);
return true;
} else
left = str;
return false;
}
list<string> String::split_to_list(string str, char delimiter) {
list<string> l;
if((str.c_str())[str.length() - 1] != delimiter)
str += delimiter;
const char *c = str.c_str();
int j = 0;
for(int i = 0; c[i]; i++) {
if(c[i] == delimiter) {
string a;
a.insert(0, &c[j], i - j);
j = i + 1;
l.push_back(a);
}
}
return l;
}
map<string, string> String::split_list_to_map(const list<string> &l, char delimiter) {
map<string, string> m;
for(list<string>::const_iterator it = l.begin(); it != l.end(); it++) {
int i = (*it).find(delimiter);
if(i > 0 && i < (int)(*it).length()) {
const char *c = (*it).c_str();
string n, v;
n.insert(0, c, i);
v.insert(0, &c[i + 1], (*it).length() - i - 1);
m[n] = v;
}
}
return m;
}
src/helpers.h 0 → 100644
View file @ be058841
#ifndef _HELPERS__H_
#define _HELPERS__H_
#include <string>
#include <list>
#include <map>
using namespace std;
class String {
public:
static bool split(const string &str, char delimiter, string &left, string &right);
static list<string> split_to_list(string str, char delimiter);
static map<string, string> split_list_to_map(const list<string> &l, char delimiter);
};
#endif // _HELPERS__H_
src/main.cpp 0 → 100644
View file @ be058841
#include <iostream>
#include <string>
#include <map>
#include "streamer.h"
using namespace std;
#include <unistd.h>
#include <linux/sysctl.h>
int main(int argc, char *argv[]) {
string opt;
map<string, string> args;
for(int i = 1; i < argc; i++) {
if(argv[i][0] == '-' && argv[i][1] != '\0') {
if(opt != "")
args[opt] = "";
opt = &argv[i][1];
continue;
} else {
if(opt != "") {
args[opt] = argv[i];
opt = "";
}
}
}
if(opt != "")
args[opt] = "";
for(map<string, string>::iterator it = args.begin(); it != args.end(); it++) {
cerr << "|" << (*it).first << "| == |" << (*it).second << "|" << endl;
}
Streamer *streamer = new Streamer(args);
streamer->Main();
return 0;
}
src/parameters.cpp 0 → 100644
View file @ be058841
#include "parameters.h"
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/ioctl.h>
#include <sys/mman.h>
#include <arpa/inet.h>
#include <fcntl.h>
#include <unistd.h>
#include <asm/elphel/c313a.h>
#include <iostream>
#include "streamer.h"
using namespace std;
#undef PARAMETERS_DEBUG
//#define PARAMETERS_DEBUG
#ifdef PARAMETERS_DEBUG
#define D(a) a
#else
#define D(a)
#endif
Parameters *Parameters::_parameters = NULL;
Parameters::Parameters(void) {
fd_fparmsall = open("/dev/frameparsall", O_RDWR);
if(fd_fparmsall < 0)
throw("can't open /dev/frameparsall");
//! now try to mmap
frameParsAll = (struct framepars_all_t *) mmap(0, sizeof (struct framepars_all_t) , PROT_READ | PROT_WRITE , MAP_SHARED, fd_fparmsall, 0);
if((int)frameParsAll == -1)
throw("Error in mmap /dev/frameparsall");
framePars = frameParsAll->framePars;
globalPars = frameParsAll->globalPars;
}
Parameters::~Parameters(void) {
if(fd_fparmsall > 0)
close(fd_fparmsall);
}
/**
* @brief Read either G_* parameter (these are 'regular' values defined by number) or P_* parameter
* (it can be read for up to 6 frames ahead, but current interface only allows to read last/current value)
* @param GPNumber parameter number (as defined in c313a.h), G_* parameters have numbers above FRAMEPAR_GLOBALS, P_* - below)
* @return parameter value
*/
unsigned long Parameters::getGPValue(unsigned long GPNumber) {
return (GPNumber >= FRAMEPAR_GLOBALS) ? GLOBALPARS(GPNumber) : framePars[GLOBALPARS(G_THIS_FRAME) & PARS_FRAMES_MASK].pars[GPNumber];
}
/**
* @brief Set value of the specified global (G_*) parameter
* @param GNumber - parameter number (as defined in c313a.h)
* @param value - value to set
*/
void Parameters::setGValue(unsigned long GNumber, unsigned long value) {
GLOBALPARS(GNumber) = value;
}
unsigned long Parameters::getFrameValue(unsigned long FPNumber) {
return framePars[GLOBALPARS(G_THIS_FRAME) & PARS_FRAMES_MASK].pars[FPNumber];
}
bool Parameters::daemon_enabled(void) {
return((getFrameValue(P_DAEMON_EN) & (1 << DAEMON_BIT_STREAMER)) != 0);
}
void Parameters::setPValue(unsigned long *val_array, int count) {
/*
long target_frame = params->getGPValue(G_THIS_FRAME) + FRAMES_AHEAD_FPS;
write_data[0] = FRAMEPARS_SETFRAME;
write_data[1] = target_frame; /// wait then for that frame to be available on the output plus 2 frames for fps to be stable
write_data[2] = P_FP1000SLIM;
write_data[3] = (unsigned long)fps * 1000;
write_data[4] = P_FPSFLAGS;
write_data[5] = 3;
*/
// long rslt = write(fd_fparmsall, write_data, sizeof(write_data));
this->write(val_array, sizeof(unsigned long) * count);
}
//------------------------------------------------------------------------------
src/parameters.h 0 → 100644
View file @ be058841
#ifndef _PARS__H_
#define _PARS__H_
#include <sys/types.h>
#include <unistd.h>
#include <string>
using namespace std;
#include <asm/elphel/c313a.h>
//#define FRAMES_AHEAD_FPS 3 /// number of video frames ahead of current to frite FPS limit
//#define FRAMES_SKIP_FPS 3 /// number of video frames to wait after target so circbuf will have at least 2 frames with new fps for calculation
class Parameters {
public:
/*
enum vevent {
VEVENT0,
DAEMON_DISABLED,
FPS_CHANGE,
SIZE_CHANGE
};
*/
inline static Parameters *instance(void) {
if(_parameters == NULL)
_parameters = new Parameters();
return _parameters;
}
~Parameters(void);
// unsigned long get
/// interface to global camera parameters
unsigned long getGPValue(unsigned long GPNumber);
void setGValue(unsigned long GNumber, unsigned long value);
unsigned long getFrameValue(unsigned long FPNumber);
int write(unsigned long *data, int length) { return ::write(fd_fparmsall, (void *)data, length); }
off_t lseek(off_t offset, int whence) { return ::lseek(fd_fparmsall, offset, whence); }
bool daemon_enabled(void);
void setPValue(unsigned long *val_array, int count);
protected:
static Parameters *_parameters;
Parameters(void);
struct framepars_all_t *frameParsAll;
struct framepars_t *framePars;
unsigned long *globalPars;
int fd_fparmsall;
};
//extern Video *video;
#endif // _VIDEO__H_
src/rtp_stream.cpp 0 → 100644
View file @ be058841
#include <arpa/inet.h>
#include <iostream>
#include "rtp_stream.h"
#include "helper.h"
using namespace std;
#define CNAME "elphel353"
#undef RTP_DEBUG
//#define RTP_DEBUG
#ifdef RTP_DEBUG
#define D(a) a
#else
#define D(a)
#endif
RTP_Stream::RTP_Stream(void) {
_play = false;
pthread_mutex_init(&pthm_flow, NULL);
stream_name = "unknown";
rtp_socket = NULL;
rtcp_socket = NULL;
sem_init(&sem_play, 0, 0);
pth_id = -1;
}
RTP_Stream::~RTP_Stream() {
//cerr << "RTP_Stream::~RTP_Stream() for stream " << stream_name << endl;
if(pth_id >= 0)
pthread_cancel(pth);
if(rtp_socket != NULL)
delete rtp_socket;
if(rtcp_socket != NULL)
delete rtcp_socket;
sem_destroy(&sem_play);
pthread_mutex_destroy(&pthm_flow);
}
void RTP_Stream::init_pthread(void *__this) {
pthread_attr_t tattr;
pthread_attr_init(&tattr);
pthread_attr_setdetachstate(&tattr, PTHREAD_CREATE_DETACHED);
pth_id = pthread_create(&pth, &tattr, RTP_Stream::pthread_f, (void *)__this);
}
void *RTP_Stream::pthread_f(void *_this) {
RTP_Stream *__this = (RTP_Stream *)_this;
return __this->thread();
}
void RTP_Stream::Start(string ip, int port, int ttl) {
D( cerr << " new " << stream_name << " UDP socket at port: " << port << endl;)
pthread_mutex_lock(&pthm_flow);
if(!_play) {
rtp_socket = new Socket(ip, port, Socket::TYPE_UDP, ttl);
rtcp_socket = new Socket(ip, port + 1, Socket::TYPE_UDP, ttl);
rtp_packets = 0;
rtp_octets = 0;
rtcp_tv.tv_sec = 0;
rtcp_tv.tv_usec = 0;
// rtcp_delay = 2500000; // in usec
// rtcp_delay = 1250000; // in usec
rtcp_delay = 2000000; // in usec
_play = true;
/// unlock semaphore - 'play' event
sem_post(&sem_play);
}
pthread_mutex_unlock(&pthm_flow);
}
void RTP_Stream::Stop(void) {
D( cerr << __FILE__<< ":"<< __FUNCTION__ << ":" <<__LINE__ <<endl;)
//cerr << "RTP_Stream::Stop() for stream " << stream_name << " - begin" << endl;
pthread_mutex_lock(&pthm_flow);
if(_play) {
//cerr << "RTP_Stream::Stop() for stream " << stream_name << " - in progress" << endl;
/// reset semaphore
sem_init(&sem_play, 0, 0);
_play = false;
// delete rtcp_socket;
if(rtp_socket != NULL) {
delete rtp_socket;
rtp_socket = NULL;
}
if(rtcp_socket != NULL) {
delete rtcp_socket;
rtcp_socket = NULL;
}
}
pthread_mutex_unlock(&pthm_flow);
//cerr << "RTP_Stream::Stop() for stream " << stream_name << " - end" << endl;
}
/**
* @brief Thread that invokes the video (and audio too) frame acquisition/ transmission
* In the current implementation video process() is blocking, but may be made
* non-blocking again later (through poll()). In addition to bool result
* (false if no frames are available, there are now long process(), with
* additional <0 result for the video frame change/stream shut down detected
* in Video class.
* @return never
*/
void *RTP_Stream::thread(void) {
D( cerr << "RTP_Stream::thread(void)" <<endl;)
for(;;) {
pthread_mutex_lock(&pthm_flow);
if(_play) {
long f = process();
if(f > 0)
rtcp();
// process() and rtcp() use sockets
pthread_mutex_unlock(&pthm_flow);
if(f < 0) {
D( cerr << __FILE__<< ":"<< __FUNCTION__ << ":" <<__LINE__<< "process exception detected: " << f << endl;)
// cerr << "Stop() from thread for stream " << stream_name << endl;
Stop();
}
} else { /// wait for 'play' event semaphore
pthread_mutex_unlock(&pthm_flow);
sem_wait(&sem_play);
}
}
return NULL;
}
void RTP_Stream::rtcp(void) {
// check time for next one RTCP...
if(f_tv.tv_sec == 0 && f_tv.tv_usec == 0)
return;
long td = time_delta_us(f_tv, rtcp_tv);
if(td < 0) {
rtcp_tv = f_tv;
return;
}
if(td < rtcp_delay)
return;
rtcp_tv = f_tv;
rtcp_send_sdes();
rtcp_send_sr();
}
void RTP_Stream::rtcp_send_sr(void) {
char packet[8 + 20]; // by RTP RFC 3550, for SR RTCP packet needed 8 + 20 bytes
int packet_len = sizeof(packet);
uint16_t us;
uint32_t ul;
// RTCP header
packet[0] = 0x81;
packet[1] = 200; // SR
us = htons(((packet_len) / 4) - 1);
memcpy((void *)&packet[2], (void *)&us, 2);
memcpy((void *)&packet[4], (void *)&SSRC, 4);
// NTP timestamp is a fixed point 32.32 format time
ul = htonl(f_tv.tv_sec);
memcpy((void *)&packet[8], (void *)&ul, 4);
double d = f_tv.tv_usec;
d /= 1000000.0;
d *= 65536.0;
d *= 4096.0;
uint32_t f = (uint32_t)d;
if(f > 0x0FFFFFFF)
f = 0x0FFFFFFF;
f <<= 4;
ul = htonl(f);
memcpy((void *)&packet[12], (void *)&ul, 4);
ul = htonl(timestamp);
memcpy((void *)&packet[16], (void *)&ul, 4);
ul = htonl(rtp_packets);
memcpy((void *)&packet[20], (void *)&ul, 4);
ul = htonl(rtp_octets);
memcpy((void *)&packet[24], (void *)&ul, 4);
rtcp_socket->send(packet, packet_len);
}
void RTP_Stream::rtcp_send_sdes(void) {
char packet[8 + 4 + 128]; // by RTP RFC 3550, for SDES RTCP packet needed 8 + 4 + ... bytes,
// so get additional 128 bytes for 126 CNAME field
int packet_len = 0;
int padding=0;
uint16_t us;
const char *cname = CNAME;
int cname_len = strlen(cname);
bzero((void *)packet, 140); //8+4+128
// RTCP header
packet[0] = 0x81;
packet[1] = 202;
memcpy((void *)&packet[4], (void *)&SSRC, 4);
packet_len += 8;
// SDES fields
packet[8] = 0x01;
memcpy((void *)&packet[10], (void *)cname, cname_len);
packet_len += 2; // + cname_len;
// calculate common length SDES
padding=(cname_len+2)%4;
if(padding)
cname_len += (4-padding);
packet[9] = cname_len;
// each chunk MUST be terminated by one or more null octets(RFC3350)
packet_len += (cname_len+4);
us = htons((packet_len / 4) - 1);
memcpy((void *)&packet[2], (void *)&us, 2);
rtcp_socket->send(packet, packet_len);
}
src/rtp_stream.h 0 → 100644
View file @ be058841
#ifndef __H_RTP_STREAM__
#define __H_RTP_STREAM__
#include <sys/time.h>
#include <string>
#include <pthread.h>
#include <semaphore.h>
#include "socket.h"
#include <stdint.h>
using namespace std;
extern int fd_stream;
class RTP_Stream {
public:
RTP_Stream(void);
virtual ~RTP_Stream();
int ptype(void) { return _ptype; };
virtual void Start(string ip, int port, int ttl = -1);
virtual void Stop(void);
protected:
void init_pthread(void *__this);
pthread_t pth;
int pth_id;
static void *pthread_f(void *_this);
void *thread(void);
pthread_mutex_t pthm_flow;
// virtual bool process(void) = 0;
virtual long process(void) = 0;
int _ptype;
bool _play;
/// semaphore to wait 'play' event
sem_t sem_play;
Socket *rtp_socket;
Socket *rtcp_socket;
unsigned short packet_num;
unsigned long SSRC;
struct timeval f_tv;
struct timeval rtcp_tv; // time of last SR
long rtcp_delay;
unsigned long timestamp;
unsigned long rtp_packets;
unsigned long rtp_octets;
void rtcp(void);
void rtcp_send_sr(void);
void rtcp_send_sdes(void);
string stream_name;
};
#endif //__H_RTP_STREAM__
src/rtsp.cpp 0 → 100644
View file @ be058841
#include "rtsp.h"
#include "helpers.h"
#include "parameters.h"
#include <string.h>
#include <vector>
using namespace std;
#undef RTSP_DEBUG
#undef RTSP_DEBUG_2
//#define RTSP_DEBUG
//#define RTSP_DEBUG_2
#ifdef RTSP_DEBUG
#define D(a) a
#else
#define D(a)
#endif
#ifdef RTSP_DEBUG_2
#define D2(a) a
#else
#define D2(a)
#endif
#define RTSP_SIGN "rtsp://"
#define RTSP_PORT_1 554
#define RTSP_PORT_2 8554
//#define RTSP_PORT_3 7070
// TODO
_Request::_Request(const string &request) {
string s;
int prev = 0;
int i = 0;
int len = request.length();
const char *c = request.c_str();
bool first = true;
string name, value;
while(i < len) {
s = "";
for(; i < len && c[i] != '\n' && c[i] != '\r' && c[i] != '\0'; i++);
if(c[i] == '\n' || c[i] == '\r') {
if(i == prev) {
i++;
prev = i;
continue;
}
s.insert(0, request, prev, i - prev);
// cerr << "prev == " << prev << "; i == " << i << ";--> " << "\trequest string: \"" << s << "\"" << endl;
if(first) {
int x = s.find(" ");
method.insert(0, s, 0, x);
int y = s.find(" ", x + 1);
uri.insert(0, s, x + 1, y - x - 1);
// cerr << "method == |" << method << "|; uri == |" << uri << "|" << endl;
first = false;
} else {
name = "";
value = "";
int x = s.find(": ");
name.insert(0, s, 0, x);
value.insert(0, s, x + 2, s.length() - x - 1);
fields[name] = value;
// cerr << "pair: name == |" << name << "|; value == |" << value << "|" << endl;
}
}
if(c[i] == '\0')
break;
i++;
prev = i;
}
}
void _Responce::add_field(const string &name, const string &value) {
fields[name] = value;
}
void _Responce::add_include(const string &_include) {
include = _include;
}
string _Responce::serialize() {
string rez;
switch(_status) {
case STATUS_OK:
rez = "RTSP/1.0 200 OK\r\n";
break;
case STATUS_BUSY:
rez = "RTSP/1.0 455 Server is busy\r\n";
break;
case STATUS_EMPTY:
rez = "";
return rez;
}
for(map<string, string>::iterator it = fields.begin(); it != fields.end(); it++) {
rez += (*it).first + ": " + (*it).second + "\r\n";
}
rez += "\r\n";
if(include.length() != 0) {
rez += include;
}
return rez;
}
RTSP_Server::RTSP_Server(int (*h)(void *, RTSP_Server *, RTSP_Server::event), void *handler_data, Session *_session) {
socket_main_1 = NULL;
socket_main_2 = NULL;
// socket_main_3 = NULL;
handler_f = h;
this->handler_data = handler_data;
session = _session;
// _busy = NULL;
}
void RTSP_Server::main(void) {
list<Socket *> s;
// create listen socket...
// once opened socket to listen can be closed and reopen again by Socket's implementation:
// opened port assigned to process id and is keeped all time while process is alive
// so, keep this socket
if(socket_main_1 == NULL) {
socket_main_1 = new Socket("", RTSP_PORT_1);
socket_main_1->listen(2);
}
if(socket_main_2 == NULL) {
socket_main_2 = new Socket("", RTSP_PORT_2);
socket_main_2->listen(2);
}
/*
if(socket_main_3 == NULL) {
socket_main_3 = new Socket("", RTSP_PORT_3);
socket_main_3->listen(2);
}
*/
/*
if(socket_main == NULL) {
// socket_main = new Socket("", 554);
//cerr << "create socket to listen port" << endl;
socket_main = new Socket("", RTSP_PORT);
// Socket *socket_1 = new Socket("", 554);
// Socket *socket_2 = new Socket("", 8554);
// Socket *socket_3 = new Socket("", 7070);
socket_main->listen(2);
} else {
//cerr << "main socket already exist" << endl;
}
*/
s.push_back(socket_main_1);
s.push_back(socket_main_2);
// s.push_back(socket_main_3);
D(static int count = 0;)
bool to_poll = true;
// Parameters *params = Parameters::instance();
while(true) {
if(to_poll) {
int poll_rez = Socket::poll(s, 500);
D( {if(count < 5) {
cerr << "poll..." << endl;
count++;
}
});
// TODO here:
// if client connected - check for changes of all possible parameters
// if client not connected - check only about enable/disable bit to prevent overhead
if(handler(PARAMS_WAS_CHANGED)) {
// stop all sessions, and restart streamer
handler(RESET);
break;
}
if(poll_rez == 0) {
/// poll was finished with timeout, not socket event
to_poll = true;
continue;
}
}
to_poll = true;
for(list<Socket *>::iterator it = s.begin(); it != s.end(); it++) {
Socket::state state = (*it)->state_refresh();
if(state == Socket::STATE_IN || state == Socket::STATE_DISCONNECT) {
D2(cerr << endl << "something happen on the socket!" << endl;)
if(*it == socket_main_1 || *it == socket_main_2) {// || *it == socket_main_3) {
// Socket *in = socket_main->accept();
Socket *in = (*it)->accept();
if(in) {
in->set_so_keepalive(1);
D2(cerr << "processed - s.push_back(in)" << endl;)
D2(fprintf(stderr, "added : 0x%08X\n", in);)
s.push_back(in);
}
} else {
// check for remove closed socket !
D2(cerr << "was with non-main socket" << endl;)
if(!process(*it)) {
D2(cerr << "process failed - remove it!" << endl;)
D2(fprintf(stderr, "delete: 0x%08X\n", *it);)
delete *it;
s.remove(*it);
// check about counters etc...
to_poll = false;
break;
}
}
}
}
}
// stop all - by TEARDOWN command
for(list<Socket *>::iterator it = s.begin(); it != s.end(); it++) {
// keep the 'main' i.e. server socket
if(*it != socket_main_1 && *it != socket_main_2) {// && *it != socket_main_3) {
D2(fprintf(stderr, "delete: 0x%08X\n", *it);)
delete *it;
}
}
// reset sockets IDs and state
// _busy = NULL;
active_sockets.erase(active_sockets.begin(), active_sockets.end());
}
bool RTSP_Server::process_teardown(Socket *s) {
// if(!session->rtp_out.multicast)
// _busy = s;
for(list<Socket *>::iterator it = active_sockets.begin(); it != active_sockets.end(); it++)
if(*it == s) {
// if(*it != socket_main)
// delete *it;
active_sockets.erase(it);
return true;
}
return false;
}
bool RTSP_Server::process_play(Socket *s, bool add) {
// discard unicast client if client already exist
if(!session->rtp_out.multicast)
if(active_sockets.size() != 0)
return false;
if(add)
active_sockets.push_back(s);
return true;
}
bool RTSP_Server::process(Socket *s) {
string req;
_Request *request;
_Responce *responce = NULL;
bool r = true;
_Responce::status status = _Responce::STATUS_EMPTY;
D(cerr << "RTSP_Server::process()" << endl;)
bool to_teardown = false;
// recv failed - socket error - should close socket and check teardown
if(!s->recv(req))
to_teardown = true;
// empty request mean connection closed (behavior of Socket)
if(req == "")
to_teardown = true;
// decrement active clients, and stop stream if no clients
if(to_teardown) {
if(process_teardown(s))
handler(TEARDOWN);
return false;
}
D(cerr << __FILE__<< ":"<< __FUNCTION__ << ":" <<__LINE__ << " part_REQUEST: " << endl << "\"" << req << "\"" << endl;)
// check for partial request...
part_of_request += req;
req = part_of_request;
const char *c = req.c_str();
string end;
int e = req.length();
e -= 4;
if(e <= 0)
e = 0;
for(int i = req.length() - 1; i >= e; i--) {
end += c[i];
}
if(end.find("\n\n") != 0 && end.find("\n\r\n\r") != 0) {
return true;
} else {
part_of_request = "";
}
// process...
request = new _Request(req);
Parameters *params = Parameters::instance();
responce = new _Responce();
// responce->add_field("CSeq", (*request->get_fields().find("CSeq")).second);
responce->add_field("CSeq", (request->get_fields())["CSeq"]);
if(request->get_method() == "OPTIONS") {
if(params->daemon_enabled()) {
status = _Responce::STATUS_OK;
responce->add_field("Public", "DESCRIBE, SETUP, TEARDOWN, PLAY, PAUSE");
// check transport...
if(!session->rtp_out.multicast)
session->rtp_out.ip = s->source_ip();
} else {
status = _Responce::STATUS_BUSY;
}
}
if(request->get_method() == "DESCRIBE") {
if(params->daemon_enabled() && process_play(s, false)) {
handler(DESCRIBE); /// Streamer should update session data (width, height, fps)
status = _Responce::STATUS_OK;
char buf[8];
string sdp = make_sdp(request->get_uri());
responce->add_field("Content-Type", "application/sdp");
sprintf(buf, "%d", (int)sdp.length());
responce->add_field("Content-Length", buf);
responce->add_include(sdp);
} else {
status = _Responce::STATUS_BUSY;
}
}
if(request->get_method() == "SETUP") {
if(params->daemon_enabled() && process_play(s, false)) {
status = _Responce::STATUS_OK;
// TODO: random session number
responce->add_field("Session", "47112344");
// responce->add_field("Transport", make_transport((*request->get_fields().find("Transport")).second));
responce->add_field("Transport", make_transport(request->get_fields()["Transport"]));
} else {
status = _Responce::STATUS_BUSY;
}
}
if(request->get_method() == "TEARDOWN") {
status = _Responce::STATUS_OK;
process_teardown(s);
handler(TEARDOWN);
}
if(request->get_method() == "PLAY") {
if(params->daemon_enabled() && (process_play(s))) {
status = _Responce::STATUS_OK;
handler(PLAY);
} else {
status = _Responce::STATUS_BUSY;
}
}
if(request->get_method() == "PAUSE") {
status = _Responce::STATUS_OK;
handler(PAUSE);
}
delete request;
responce->set_status(status);
D( cerr << "\tRESPONSE: " << endl << "\"" << responce->serialize() << "\"" << endl;)
r = s->send(responce->serialize());
delete responce;
return r;
}
string RTSP_Server::make_sdp(string uri) {
char buf[256];
D(cerr << "make SDP" << endl;)
// make video description
// m = - port + PAYLOAD
string rez;
///*
rez += "m=video ";
sprintf(buf, "%d", session->rtp_out.port_video);
if(session->process_audio == false) {
if(session->rtp_out.multicast) {
rez += buf;
} else {
rez += "0";
}
} else {
rez += buf;
}
rez += " RTP/AVP ";
sprintf(buf, "%d", session->video.type);
rez += buf;
rez += "\r\n"; // port
if(session->rtp_out.multicast) {
rez += "a=type:multicast\r\n";
rez += "c=IN IP4 " + session->rtp_out.ip + "/" + session->rtp_out.ttl + "\r\n"; // IP + TTL
} else {
rez += "a=type:unicast\r\n";
rez += "c=IN IP4 0.0.0.0\r\n"; // IP + TTL
}
sprintf(buf, "%.4f", session->video.fps);
// rez += "a=framerate:";
// rez += buf;
rez += "\r\na=x-framerate:";
rez += buf;
//cerr << "x-framerate == " << buf << endl;
if(session->video.width > 0) {
sprintf(buf, "%d", session->video.width);
// rez += "\r\na=width:";
// rez += buf;
rez += "\r\na=x-width:";
rez += buf;
}
if(session->video.height > 0) {
sprintf(buf, "%d", session->video.height);
// rez += "\r\na=height:";
// rez += buf;
rez += "\r\na=x-height:";
rez += buf;
}
if(session->video.width > 0 && session->video.height > 0) {
sprintf(buf, "%d,%d", session->video.width, session->video.height);
rez += "\r\na=x-dimensions:";
rez += buf;
}
rez += "\r\n";
//*/
// make audio description, if present
if(session->process_audio) {
// sprintf(buf, "m=audio %d RTP/AVP %d\r\n", atoi(session->rtp_out.port.c_str()) + 2, session->audio.type);
sprintf(buf, "m=audio %d RTP/AVP %d\r\n", session->rtp_out.port_audio, session->audio.type);
rez += buf;
sprintf(buf, "a=rtpmap:%d L16/%d/%d\r\n", session->audio.type, session->audio.sample_rate, session->audio.channels);
//cerr << "SDP: " << buf << endl;
rez += buf;
}
/*
if(session->rtp_out.multicast) {
rez += "a=type:multicast\r\n";
rez += "c=IN IP4 " + session->rtp_out.ip + "/" + session->rtp_out.ttl + "\r\n"; // IP + TTL
} else {
rez += "a=type:unicast\r\n";
rez += "c=IN IP4 0.0.0.0\r\n"; // IP + TTL
}
*/
rez += "a=control:" + uri + "\r\n";
D(cerr << "make SDP - ok!" << endl;)
return rez;
}
string RTSP_Server::make_transport(string req) {
if(req == "")
return "";
map<string, string> m = String::split_list_to_map(String::split_to_list(req, ';'), '=');
string client_port = m["client_port"];
int port_req = session->rtp_out.port_video;
//D(cerr << "client_port == " << client_port << endl;)
if(client_port != "") {
string first, second;
String::split(client_port, '-', first, second);
port_req = atol(first.c_str());
//D(cerr << "client_port == |" << client_port << "|; first == |" << first << "|; second == |" << "|" << endl;)
// session->rtp_out.port = first;
}
if(!session->rtp_out.multicast) {
if(!session->process_audio) {
session->rtp_out.port_video = port_req;
}
}
string rez = "RTP/AVP;";
char buf[128];
sprintf(buf, "%d", port_req);
if(session->rtp_out.multicast)
rez += "multicast;destination=" + session->rtp_out.ip + ";port=" + buf;
else
rez += "unicast;destination=" + session->rtp_out.ip + ";server_port=" + buf;
if(session->process_audio) {
sprintf(buf, "-%d", port_req + 1);
// rez += "-";
// long p = atol(session->rtp_out.port.c_str());
// p++;
// sprintf(buf, "%d", p);
rez += buf;
}
if(session->rtp_out.multicast)
rez += ";ttl=" + session->rtp_out.ttl;
// rez += "destination=" + transport.ip + ";port=" + transport.port;
// if(transport.multicast)
// rez += ";ttl=" + transport.ttl;
return rez;
}
RTSP_Server::~RTSP_Server() {
// cerr << "destroy RTSP_Server object" << endl;
// delete socket_main;
// if (request) delete request;
// if (responce) delete responce;
}
src/rtsp.h 0 → 100644
View file @ be058841
#ifndef _RTSP_H_
#define _RTSP_H_
//#include "types.h"
#include "session.h"
#include "socket.h"
#include <map>
#include <list>
#include <string>
#include <iostream>
using namespace std;
class _Request {
public:
_Request(const string &req);
inline const string &get_method(void) {
return method;
}
inline const string &get_uri(void) {
return uri;
}
inline map<string, string> &get_fields(void) {
return fields;
}
protected:
string method;
string uri;
map<string, string> fields;
};
class _Responce {
public:
enum status {STATUS_EMPTY, STATUS_BUSY, STATUS_OK};
_Responce():_status(STATUS_EMPTY) {};
inline void set_status(status st) {
_status = st;
}
void add_field(const string &name, const string &value);
void add_include(const string &include);
string serialize(void);
protected:
status _status;
map<string, string> fields;
string include;
};
class RTSP_Server {
public:
enum event {
EMPTY,
DESCRIBE,
PLAY,
PAUSE,
TEARDOWN,
PARAMS_WAS_CHANGED,
RESET
// IS_DAEMON_ENABLED
};
// if transport == NULL - wait for set_transport(), when client connected and ask DESCRIBE
RTSP_Server(int (*h)(void *, RTSP_Server *, RTSP_Server::event), void *handler_data, Session *_session = NULL);
~RTSP_Server();
// deprecated
void main(void);
protected:
bool process(Socket *s);
string make_sdp(string uri);
string make_transport(string req);
Session *session;
// socket to accept requests
// Socket *socket_main;
int (*handler_f)(void *, RTSP_Server *, RTSP_Server::event);
void *handler_data;
int handler(RTSP_Server::event event) {
return handler_f(handler_data, this, event);
}
// keep Sockets of clients to identify them and block second client in unicast mode
list<Socket *> active_sockets;
bool process_teardown(Socket *s);
bool process_play(Socket *s, bool add = true); // if secons argument is false - just check what server not busy
// void *_busy; // pointer to Socket of client, what use current unicast stream
string part_of_request;
// thread...
// RTP *rtp;
Socket *socket_main_1;
Socket *socket_main_2;
// Socket *socket_main_3;
};
#endif // _RTSP_H_
src/session.h 0 → 100644
View file @ be058841
#ifndef _SESSION__H_
#define _SESSION__H_
#include <string>
using namespace std;
#define VIDEO_MJPEG "MJPG"
struct transport_t {
string ip;
bool ip_custom; // true, if user set IP by himself, otherwise false
unsigned long ip_cached; // cashed IP to check parameter
// string port;
int port_video;
int port_audio;
bool process_audio;
bool multicast;
string ttl;
};
struct video_t {
int type; // == "", if not present
double fps; // == 0, if unspecified
int width;
int height;
int fps_scale; // 0,1 - no scale, 2 - scale 2x etc...
};
struct audio_t {
int type;
int sample_rate;
int channels;
int volume; // for inner use only - from 0 to 65535 - current audio capture volume
};
class Session {
public:
string id;
struct transport_t rtp_in;
struct transport_t rtp_out;
struct video_t video;
struct audio_t audio;
bool process_audio;
};
#endif // _SESSION__H_
src/socket.cpp 0 → 100644
View file @ be058841
#include <string>
#include <iostream>
#include <sys/types.h>
#include <sys/socket.h>
#include <arpa/inet.h>
#include <netinet/in.h>
#include <unistd.h>
#include <sys/poll.h>
#include <errno.h>
#include <fcntl.h>
#include <string.h>
#include <net/if.h>
#include <sys/ioctl.h>
using namespace std;
#include "socket.h"
#include "helpers.h"
#undef RTSP_DEBUG
#undef RTSP_DEBUG_2
#ifdef RTSP_DEBUG
#define D(a) a
#else
#define D(a)
#endif
#ifdef RTSP_DEBUG_2
#define D2(a) a
#else
#define D2(a)
#endif
#define BUF_SIZE 2048
TCP_Client::TCP_Client(bool enable_exception) {
ex = enable_exception;
fd = -1;
}
TCP_Client::~TCP_Client() {
disconnect();
}
void TCP_Client::connect(string ip, string port) {
if((fd = ::socket(PF_INET, SOCK_STREAM, 0)) == -1) {
cerr << "fail socket()" << endl;
throw(false);
}
struct sockaddr_in addr;
memset(&addr, 0, sizeof(struct sockaddr_in));
addr.sin_family = AF_INET;
addr.sin_port = htons(::atol(port.c_str()));
addr.sin_addr.s_addr = ::inet_addr(ip.c_str());
if(::connect(fd, (struct sockaddr *)&addr, sizeof(struct sockaddr)) == -1) {
cerr << "fail connect() to " << ip << ":" << port << endl;
throw(false);
}
// TODO: we must use size as MTU for interface... and also - checking for not single frames...
buf = (char *)malloc(1500);
}
void TCP_Client::disconnect(void) {
if(fd > 0) {
::close(fd);
free(buf);
buf = NULL;
}
fd = -1;
}
void TCP_Client::send(const string *data, int opt) {
if(::send(fd, data->c_str(), data->length(), opt) < 0) {
cerr << "fail to send(const string *)" << endl;
throw(false);
}
}
void TCP_Client::send(const string data, int opt) {
int er;
if(::send(fd, data.c_str(), data.length(), opt) < 0) {
er = errno;
cerr << "fail to send(const string): " << strerror(er) << endl;
throw(false);
}
}
void TCP_Client::send(void *data, int len, int opt) {
if(::send(fd, data, len, opt) < 0) {
cerr << "fail to send(void *, len)" << endl;
throw(false);
}
}
void TCP_Client::recv(string &r, int opt) {
int l, er;
if((l = ::recv(fd, buf, BUF_SIZE - 1, opt)) > 0) {
buf[l] = '\0';
r = buf;
} else {
er = errno;
cerr << "fail to recv(string &): " << strerror(er) << endl;
throw (false);
}
}
/*
* Socket class...
*/
unsigned long Socket::ip_to_number(string ip) {
string left;
string right;
unsigned long rez = 0;
while(String::split(ip, '.', left, right)) {
rez += atol(left.c_str());
rez <<= 8;
ip = right;
}
return rez;
}
bool Socket::_is_multicast(string ip) {
bool rez = true;
unsigned long a_min = ip_to_number("224.0.0.0");
unsigned long a_max = ip_to_number("239.255.255.255");
if(a_min > a_max) {
unsigned long a = a_min;
a_min = a_max;
a_max = a;
}
unsigned long a_ip = ip_to_number(ip.c_str());
if(a_ip > a_max)
rez = false;
if(a_ip < a_min)
rez = false;
return rez;
}
struct in_addr Socket::mcast_from_local(void) {
int _fd;
int reuse = 1;
_fd = socket(AF_INET, SOCK_DGRAM, 0);
setsockopt(_fd, SOL_SOCKET, SO_REUSEADDR, (void *)&reuse, sizeof(reuse));
struct ifreq ifr;
struct sockaddr_in *sin;
memset(&ifr, 0, sizeof(ifr));
strcpy(ifr.ifr_name, "eth0");
struct ifconf ifc;
ifc.ifc_len = 1;
ifc.ifc_req = &ifr;
ioctl(_fd, SIOCGIFADDR, &ifr);
close(_fd);
sin = (struct sockaddr_in *)(ifr.ifr_addr.sa_data - 2);
sin->sin_addr.s_addr &= (0xFFFFFF0F);
sin->sin_addr.s_addr |= (0x000000E0);
return sin->sin_addr;
}
/// use ttl parameter only with UDP sockets
Socket::Socket(string _ip, int _port, stype _type, int ttl) {
ip = _ip;
port = _port;
is_multicast = false;
D(cerr << "new socket..." << endl;)
_state = STATE_EMPTY;
int t = 0;
type = _type;
struct sockaddr_in addr;
memset(&addr, 0, sizeof(struct sockaddr_in));
addr.sin_family = PF_INET;
addr.sin_port = htons(port);
switch(type) {
case TYPE_TCP: {
fd = socket(PF_INET, SOCK_STREAM, 0);
int flag = 1;
setsockopt(fd, IPPROTO_IP, SO_REUSEADDR, &flag, sizeof(flag));
if(ip != "")
addr.sin_addr.s_addr = inet_addr(ip.c_str());
else
addr.sin_addr.s_addr = htonl(INADDR_ANY);
if(ttl>0)
setsockopt(fd, IPPROTO_IP, IP_TTL, &ttl, sizeof(ttl));
t = bind(fd, (struct sockaddr *)&addr, sizeof(struct sockaddr));
D( int er = errno;)
D( cerr << "TCP ::bind() == " << t; if(t != 0) cerr << "; errno == " << strerror(er); cerr << endl;)
break;
}
case TYPE_UDP: {
fd = socket(PF_INET, SOCK_DGRAM, 0);
struct sockaddr_in saddr;
memset(&saddr, 0, sizeof(struct sockaddr_in));
saddr.sin_family = PF_INET;
saddr.sin_port = htons(0);
saddr.sin_addr.s_addr = htonl(INADDR_ANY);
::bind(fd, (struct sockaddr *)&saddr, sizeof(struct sockaddr_in));
addr.sin_addr.s_addr = inet_addr(ip.c_str());
t = ::connect(fd, (struct sockaddr *)&addr, sizeof(struct sockaddr));
D( cerr << "::connect() == " << t << endl;)
if((is_multicast = _is_multicast(ip)) == true) {
struct ip_mreqn multiaddr;
multiaddr.imr_multiaddr.s_addr = inet_addr(ip.c_str());
multiaddr.imr_address.s_addr = htonl(INADDR_ANY);
multiaddr.imr_ifindex = 0;
setsockopt(fd, IPPROTO_IP, IP_ADD_MEMBERSHIP, &multiaddr, sizeof(struct sockaddr_in));
}
// check TTL
if(ttl > 0) {
//cerr << "try to set TTL to value == " << ttl << endl;
setsockopt(fd, IPPROTO_IP, IP_MULTICAST_TTL, &ttl, sizeof(ttl));
}
break;
}
default:
break;
}
}
Socket::Socket(int _fd, string _ip, int _port, stype _t) {
_state = STATE_EMPTY;
fd =_fd;
ip = _ip;
port = _port;
type = _t;
D( cerr << "socket: ip == " << ip << "; port == " << port << endl;)
}
Socket::~Socket() {
close(fd);
}
int Socket::poll(list<Socket *> &s, int timeout) {
struct pollfd *pfd;
ssize_t s_size = s.size();
D2(cerr << "Socket::poll()..." << endl;)
pfd = (struct pollfd *)malloc(sizeof(struct pollfd) * s_size);
memset(pfd, 0, sizeof(struct pollfd) * s_size);
int i = 0;
D2(cerr << "socket.fd == ";)
for(list<Socket *>::iterator it = s.begin(); it != s.end(); it++, i++) {
pfd[i].fd = (*it)->fd;
D2(cerr << pfd[i].fd << "; ";)
// pfd[i].events = 0xFFFF;
pfd[i].events = POLLIN;
pfd[i].revents = 0x00;
}
D2(cerr << endl;)
int p = ::poll(pfd, s_size, timeout);
i = 0;
for(list<Socket *>::iterator it = s.begin(); it != s.end(); it++, i++) {
(*it)->_state = STATE_EMPTY;
D2(cerr << "revents == " << pfd[i].revents << "; POLLIN == " << POLLIN << endl;)
if(pfd[i].revents & POLLIN) {
(*it)->_state = STATE_IN;
D2(cerr << "STATE_IN; fd == " << (*it)->fd << "; revents == " << pfd[i].revents << endl;)
}
if(pfd[i].revents & POLLHUP) {
// if(pfd[i].revents & POLLHUP || pfd[i].revents & POLLERR) {
(*it)->_state = STATE_DISCONNECT;
//D2(cerr << "STATE_DISCONNECT; fd == " << (*it)->fd << "; revents == " << pfd[i].revents << endl;)
cerr << "STATE_DISCONNECT; fd == " << (*it)->fd << "; revents == " << pfd[i].revents << endl;
}
}
free((void *)pfd);
return p;
}
void Socket::listen(int in) {
long sock_flags;
sock_flags = fcntl(fd, F_GETFL);
sock_flags |= O_NONBLOCK;
fcntl(fd, F_SETFL, sock_flags);
int l = ::listen(fd, in);
D(cerr << "listen() == " << l << endl;)
l++;
}
Socket *Socket::accept(void) {
int _fd;
struct sockaddr_in addr;
socklen_t addr_len = 0;
long sock_flags;
Socket *s;
memset(&addr, 0, sizeof(struct sockaddr_in));
addr_len = sizeof(struct sockaddr_in);
_fd = ::accept(fd, (struct sockaddr *)&addr, &addr_len);
if(_fd < 0)
return NULL;
sock_flags = fcntl(_fd, F_GETFL);
sock_flags |= O_NONBLOCK;
fcntl(_fd, F_SETFL, sock_flags);
D(cerr << "accept == " << _fd << "; addr_len == " << addr_len << endl;)
s = new Socket(_fd, inet_ntoa(addr.sin_addr), ntohs(addr.sin_port), type);
return s;
}
void Socket::set_so_keepalive(int val) {
int keepalive = val;
struct timeval tv;
tv.tv_sec = 5;
tv.tv_usec = 0;
::setsockopt(fd, SOL_SOCKET, SO_KEEPALIVE, &keepalive, sizeof(keepalive));
::setsockopt(fd, SOL_SOCKET, SO_RCVTIMEO, &tv, sizeof(tv));
::setsockopt(fd, SOL_SOCKET, SO_SNDTIMEO, &tv, sizeof(tv));
}
bool Socket::recv(string &rez) {
rez = "???";
char buf[1501];
int l = 0;
buf[0] = '\0';
if((l = ::recv(fd, buf, 1500, MSG_NOSIGNAL | MSG_DONTWAIT)) > 0) {
buf[l] = '\0';
rez = buf;
D(cerr << "read - ok!"<< endl;)
return true;
} else {
if(l == 0) {
rez = "";
return true;
}
}
rez = "";
return false;
}
bool Socket::send(void *data, int len) {
return (::send(fd, data, len, MSG_NOSIGNAL | MSG_DONTWAIT) > 0);
}
bool Socket::send(const string *data) {
if(::send(fd, data->c_str(), data->length(), 0) > 0)
return true;
return false;
}
bool Socket::send(const string data) {
if(::send(fd, data.c_str(), data.length(), MSG_NOSIGNAL | MSG_DONTWAIT) > 0)
return true;
return false;
}
uint16_t in_chksum(const uint16_t *addr, register uint32_t len) {
int32_t nleft = len;
const uint16_t *w = addr;
uint16_t answer;
int32_t sum = 0;
while(nleft > 1) {
sum += *w++;
nleft -= 2;
}
if(nleft == 1)
sum += htons(*(uint8_t *)w << 8);
sum = (sum >> 16) + (sum & 0xffff); /* add hi 16 to low 16 */
sum += (sum >> 16); /* add carry */
answer = ~sum; /* truncate to 16 bits */
return answer;
}
bool Socket::send2v(void **v_ptr, int *v_len) {
struct iovec iov[2];
int iovcnt = sizeof(iov) / sizeof(struct iovec);
iov[0].iov_base = v_ptr[0];
iov[0].iov_len = v_len[0];
iov[1].iov_base = v_ptr[1];
iov[1].iov_len = v_len[1];
if(::writev(fd, iov, iovcnt))
return true;
return false;
}
bool Socket::send3v(void **v_ptr, int *v_len) {
struct iovec iov[3];
int iovcnt = sizeof(iov) / sizeof(struct iovec);
iov[0].iov_base = v_ptr[0];
iov[0].iov_len = v_len[0];
iov[1].iov_base = v_ptr[1];
iov[1].iov_len = v_len[1];
iov[2].iov_base = v_ptr[2];
iov[2].iov_len = v_len[2];
if(::writev(fd, iov, iovcnt))
return true;
return false;
}
src/socket.h 0 → 100644
View file @ be058841
#ifndef _SOCKETS_H_
#define _SOCKETS_H_
#include <string>
#include <list>
#include <sys/socket.h>
using namespace std;
class TCP_Client {
public:
TCP_Client(bool enable_exception);
~TCP_Client();
void connect(string ip, string port);
void disconnect(void);
void send(const string *data, int opt = 0);
void send(const string data, int opt = 0);
void send(void *data, int len, int opt = 0);
void recv(string &r, int opt = 0);
protected:
bool ex;
int fd;
char *buf;
};
class Socket {
public:
enum stype {TYPE_TCP, TYPE_UDP};
enum state {STATE_EMPTY, STATE_IN, STATE_DISCONNECT};
Socket(string ip, int port, stype _t = TYPE_TCP, int ttl = 64);
~Socket();
bool recv(string &rez);
bool send(void *data, int len);
bool send(const string *data);
bool send(const string data);
bool send2v(void **v_ptr, int *v_len);
bool send3v(void **v_ptr, int *v_len);
static int poll(list<Socket *> &s, int timeout = -1);
void listen(int in);
Socket *accept(void);
// bool connect(void);
void set_so_keepalive(int val = 1);
inline state state_refresh(void) {
state st = _state;
_state = STATE_EMPTY;
return st;
}
int get_fd(void) { return fd;};
int fd;
string source_ip(void) {
return ip;
}
static struct in_addr mcast_from_local(void);
protected:
Socket(int _fd, string _ip, int _port, stype _t);
string ip;
int port;
stype type;
// int fd;
state _state;
int ttl;
unsigned short ip_id;
bool _is_multicast(string ip);
unsigned long ip_to_number(string ip);
bool is_multicast;
/*
struct sockaddr_ll s_ll;
struct msghdr msg;
struct udphdr udp_hdr;
struct iphdr ip_hdr;
*/
};
#endif
src/streamer.cpp 0 → 100644
View file @ be058841
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include "streamer.h"
#include "helpers.h"
#include "socket.h"
#include <iostream>
using namespace std;
#undef RTSP_DEBUG
//#define RTSP_DEBUG
#undef RTSP_DEBUG_2
//#define RTSP_DEBUG_2
#ifdef RTSP_DEBUG
#define D(a) a
#else
#define D(a)
#endif
#ifdef RTSP_DEBUG_2
#define D2(a) a
#else
#define D2(a)
#endif
Streamer *Streamer::_streamer = NULL;
Streamer::Streamer(const map<string, string> &_args) {
if(_streamer != NULL)
throw("can't make an another instance of streamer");
else
_streamer = this;
session = new Session();
args = _args;
audio = NULL;
session->process_audio = false;
session->audio.sample_rate = 0;
session->audio.channels = 0;
session->rtp_out.ip_custom = false;
session->rtp_out.ip_cached = 0;
session->video.fps_scale = 1;
audio_init();
video = new Video();
if(opt_present("f")) {
float fps = 0;
fps = atof(args["f"].c_str());
if(fps < 0.1)
fps = 0;
D( cout << "use fps: " << fps << endl;)
video->fps(fps);
}
rtsp_server = NULL;
connected_count = 0;
}
void Streamer::audio_init(void) {
if(audio != NULL) {
D( cerr << "delete audio" << endl;)
delete audio;
}
D( cout << "audio_enabled == " << session->process_audio << endl;)
audio = new Audio(session->process_audio, session->audio.sample_rate, session->audio.channels);
if(audio->present() && session->process_audio) {
session->process_audio = true;
session->audio.type = audio->ptype();
session->audio.sample_rate = audio->sample_rate();
session->audio.channels = audio->channels();
} else {
session->process_audio = false;
session->audio.type = -1;
session->audio.sample_rate = 0;
session->audio.channels = 0;
}
}
Streamer::~Streamer(void) {
delete video;
delete audio;
}
int Streamer::f_handler(void *ptr, RTSP_Server *rtsp_server, RTSP_Server::event event) {
Streamer *__this = (Streamer *)ptr;
return __this->handler(rtsp_server, event);
}
int Streamer::update_settings(bool apply) {
D( cerr << "update_settings" << endl;)
// check settings, normalize its, return 1 if was changed
// update settings at application if apply = 1 and parameters change isn't on-fly safe, update parameters always
#define _CAN_BE_CHANGED 11
unsigned long changes_array[2 * (_CAN_BE_CHANGED + 1)];
int changes_array_i = 2;
bool params_update = false;
// update application settings
// if(connected_count == 0) {
// don't change "on the fly" if someone already connected - like mcast clients
Parameters *params = Parameters::instance();
// multicast parameters
// - multicast ip
// new values
bool result = false;
//----------------
// frame skip, or FPS scale
int frames_skip = params->getGPValue(P_STROP_FRAMES_SKIP);
if(frames_skip < 0 || frames_skip > 0xFFFF) {
if(frames_skip < 0)
frames_skip = 0;
if(frames_skip < 0xFFFF)
frames_skip = 0xFFFF;
changes_array[changes_array_i + 0] = P_STROP_FRAMES_SKIP;
changes_array[changes_array_i + 1] = (unsigned long)frames_skip;
changes_array_i += 2;
params_update = true;
}
frames_skip += 1; // convert to fps_scale format;
if(frames_skip != session->video.fps_scale) {
if(apply)
session->video.fps_scale = frames_skip;
//cerr << "session->video.fps_scale = " << session->video.fps_scale << endl;
result = true;
}
//----------------
// transport parameters
bool transport_was_changed = false;
bool param_multicast = params->getGPValue(P_STROP_MCAST_EN);
if(param_multicast || session->rtp_out.multicast) {
// multicast/unicast
if(param_multicast != session->rtp_out.multicast) {
if(apply)
session->rtp_out.multicast = param_multicast;
transport_was_changed = true;
}
// IP
unsigned long ip = params->getGPValue(P_STROP_MCAST_IP);
bool ip_was_changed = false;
// switch custom/default IP
if((ip == 0) && session->rtp_out.ip_custom)
ip_was_changed = true;
if((ip != 0) && !session->rtp_out.ip_custom)
ip_was_changed = true;
// change of custom IP
if((ip != 0) && session->rtp_out.ip_custom)
if(ip != session->rtp_out.ip_cached)
ip_was_changed = true;
if(ip_was_changed) {
if(ip != 0) {
struct in_addr a;
uint32_t a_min = ntohl(inet_addr("224.0.0.0"));
uint32_t a_max = ntohl(inet_addr("239.255.255.255"));
if(a_min > a_max) {
uint32_t a = a_min;
a_min = a_max;
a_max = a;
}
if(ip < a_min)
ip = a_min;
if(ip > a_max)
ip = a_max;
a.s_addr = htonl(ip);
D( cerr << "multicast ip asked: " << inet_ntoa(a) << endl;)
if(apply) {
session->rtp_out.ip_cached = ip;
session->rtp_out.ip_custom = true;
session->rtp_out.ip = inet_ntoa(a);
changes_array[changes_array_i + 0] = P_STROP_MCAST_IP;
changes_array[changes_array_i + 1] = ip;
changes_array_i += 2;
}
} else {
struct in_addr a = Socket::mcast_from_local();
D( cerr << "multicast ip generated: " << inet_ntoa(a) << endl;)
if(apply) {
session->rtp_out.ip_custom = false;
session->rtp_out.ip = inet_ntoa(a);
}
}
transport_was_changed = true;
}
D( if(apply))
D( cerr << "actual multicast IP: " << session->rtp_out.ip << endl;)
// port
int port = params->getGPValue(P_STROP_MCAST_PORT);
if(port != session->rtp_out.port_video) {
if(port < 1024)
port = 1024;
if(port > 65532)
port = 65532;
if(apply) {
session->rtp_out.port_video = port;
session->rtp_out.port_audio = port + 2;
changes_array[changes_array_i + 0] = P_STROP_MCAST_PORT;
changes_array[changes_array_i + 1] = session->rtp_out.port_video;
changes_array_i += 2;
}
transport_was_changed = true;
}
// ttl
int ttl = params->getGPValue(P_STROP_MCAST_TTL);
if(ttl != atoi(session->rtp_out.ttl.c_str())) {
if(ttl < 1)
ttl = 1;
if(ttl > 15)
ttl = 15;
if(apply) {
char buf[8];
sprintf(buf, "%d", ttl);
session->rtp_out.ttl = buf;
changes_array[changes_array_i + 0] = P_STROP_MCAST_TTL;
changes_array[changes_array_i + 1] = ttl;
changes_array_i += 2;
}
transport_was_changed = true;
}
}
if(transport_was_changed)
params_update = true;
//-----------------
// audio parameters
bool audio_was_changed = false;
bool audio_proc = true;
bool f_audio_rate = false;
bool f_audio_channels = false;
// - enabled/disabled
if(params->getGPValue(P_STROP_AUDIO_EN) == 0)
audio_proc = false;
int audio_rate = params->getGPValue(P_STROP_AUDIO_RATE);
int audio_channels = params->getGPValue(P_STROP_AUDIO_CHANNEL);
if(audio_proc != session->process_audio)
audio_was_changed = true;
if(audio_rate != session->audio.sample_rate)
f_audio_rate = true;
if(audio_channels != session->audio.channels)
f_audio_channels = true;
if((audio_proc || session->process_audio) && (f_audio_rate || f_audio_channels))
audio_was_changed = true;
if(apply) {
bool audio_restarted = false;
if(audio_was_changed) {
session->process_audio = audio_proc;
session->audio.sample_rate = audio_rate;
session->audio.channels = audio_channels;
D2( cerr << "Audio was changed. Should restart it" << endl;)
audio_init();
audio_restarted = true;
// if audio enable was asked, check what soundcard really is connected
if(audio_proc) {
if(!audio->present()) {
session->process_audio = false;
changes_array[changes_array_i + 0] = P_STROP_AUDIO_EN;
changes_array[changes_array_i + 1] = 0;
changes_array_i += 2;
}
}
if(f_audio_rate) {
changes_array[changes_array_i + 0] = P_STROP_AUDIO_RATE;
changes_array[changes_array_i + 1] = session->audio.sample_rate;
changes_array_i += 2;
}
if(f_audio_channels) {
changes_array[changes_array_i + 0] = P_STROP_AUDIO_CHANNEL;
changes_array[changes_array_i + 1] = session->audio.channels;
changes_array_i += 2;
}
}
// was started before new client - must reinit audio
if(!audio_restarted && session->process_audio)
audio_init();
}
result = result || audio_was_changed || transport_was_changed;
// apply volume if audio is enabled, and volume was changed
if(session->process_audio) {
if(audio->present()) {
// check volume
long volume = audio->volume();
int audio_volume = params->getGPValue(P_AUDIO_CAPTURE_VOLUME);
// and apply it
if(audio_volume != volume) {
audio->set_volume(audio_volume);
changes_array[changes_array_i + 0] = P_AUDIO_CAPTURE_VOLUME;
changes_array[changes_array_i + 1] = audio->volume();
changes_array_i += 2;
params_update = true;
}
}
}
// update array of changes
// set frame to update
if(apply || params_update) {
changes_array[0] = FRAMEPARS_SETFRAME;
changes_array[1] = params->getGPValue(G_THIS_FRAME) + 1;
params->setPValue(changes_array, changes_array_i);
}
//------------------------------
// update current image settings
// if(apply) {
// here - create new function from where update all settings
struct video_desc_t video_desc = video->get_current_desc();
if(video_desc.valid) {
session->video.width = video_desc.width;
session->video.height = video_desc.height;
session->video.fps = video_desc.fps;
session->video.fps /= session->video.fps_scale;
}
session->video.type = video->ptype();
// }
if(result)
return 1;
return 0;
}
int Streamer::handler(RTSP_Server *rtsp_server, RTSP_Server::event event) {
static bool _play = false;
D( cerr << "event: running= " << running << " ";)
switch(event) {
case RTSP_Server::DESCRIBE: /// Update frame size, fps before starting new stream (generating SDP file)
update_settings(true);
break;
case RTSP_Server::PARAMS_WAS_CHANGED: /// Update frame size, fps before starting new stream (generating SDP file)
return (update_settings(false) || !(Parameters::instance()->daemon_enabled()));
case RTSP_Server::PLAY:
D( cerr << "==PLAY==";)
if(connected_count == 0) {
int ttl = -1;
if(session->rtp_out.multicast)
ttl = atoi(session->rtp_out.ttl.c_str());
video->Start(session->rtp_out.ip, session->rtp_out.port_video, session->video.fps_scale, ttl);
if(audio != NULL)
audio->Start(session->rtp_out.ip, session->rtp_out.port_audio, ttl);
}
connected_count++;
_play = true;
running = true;
break;
case RTSP_Server::PAUSE:
D( cerr << "PAUSE";)
connected_count--;
if(connected_count <= 0) {
video->Stop();
if(audio != NULL)
audio->Stop();
connected_count = 0;
_play = false;
running = false;
}
break;
case RTSP_Server::TEARDOWN:
D( cerr << "TEARDOWN";)
if(!running) {
D( cerr << " was not running";)
break;
}
connected_count--;
if(connected_count <= 0) {
video->Stop();
if(audio != NULL)
audio->Stop();
connected_count = 0;
_play = false;
running = false;
}
break;
case RTSP_Server::RESET:
D( cerr << "RESET";)
if(!running) {
D( cerr << " was not running";)
break;
}
video->Stop();
if(audio != NULL)
audio->Stop();
connected_count = 0;
_play = false;
running = false;
break;
/*
case RTSP_Server::IS_DAEMON_ENABLED:
D( cerr << "IS_DAEMON_ENABLED video->isDaemonEnabled(-1)=" << video->isDaemonEnabled(-1) << endl;)
return video->isDaemonEnabled(-1);
break;
*/
default:
D( cerr << "unknown == " << event;)
break;
}
D( cerr << endl;)
return 0;
}
void Streamer::Main(void) {
D( cerr << "start Main" << endl;)
string def_mcast = "232.1.1.1";
int def_port = 20020;
string def_ttl = "2";
session->rtp_out.ip_cached = 0;
session->rtp_out.ip_custom = true;
session->rtp_out.ip = "0";
session->rtp_out.port_video = def_port;
session->rtp_out.port_audio = def_port + 2;
session->rtp_out.ttl = def_ttl;
rtsp_server = NULL;
while(true) {
/// Check if the streamer is enabled, restart loop after waiting
if(!video->waitDaemonEnabled(-1)) {
sched_yield();
continue; /// may use particular bit instead of the "default" -1
}
update_settings(true);
/// Got here if is and was enabled (may use more actions instead of just "continue"
// start RTSP server
D2( cerr << "start server" << endl;)
if(rtsp_server == NULL)
rtsp_server = new RTSP_Server(Streamer::f_handler, (void *)this, session);
rtsp_server->main();
D2( cerr << "server was stopped" << endl;)
D2( cerr << "stop video" << endl;)
video->Stop();
D2( cerr << "stop audio" << endl;)
if(audio != NULL) {
audio->Stop();
// free audio resource - other app can use soundcard
D2( cerr << "delete audio" << endl;)
delete audio;
audio = NULL;
}
}
}
src/streamer.h 0 → 100644
View file @ be058841
#ifndef __H_STREAMER__
#define __H_STREAMER__
#include <string>
#include <map>
#include "video.h"
#include "audio.h"
#include "rtsp.h"
using namespace std;
class Streamer {
public:
Streamer(const map<string, string> &args);
~Streamer();
void Main(void);
bool opt_present(string name) {
if(args.find(name) != args.end())
return true;
return false;
}
static Streamer *instance(void) {
return _streamer;
}
protected:
static Streamer *_streamer;
static int f_handler(void *ptr, RTSP_Server *rtsp_server, RTSP_Server::event event);
int handler(RTSP_Server *rtsp_server, RTSP_Server::event event);
int update_settings(bool apply = false);
map<string, string> args;
RTSP_Server *rtsp_server;
Session *session;
Audio *audio;
Video *video;
bool running;
int connected_count;
void audio_init(void);
};
#endif // __H_STREAMER__
src/video.cpp 0 → 100644
View file @ be058841
#include "video.h"
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/ioctl.h>
#include <sys/mman.h>
#include <arpa/inet.h>
#include <fcntl.h>
#include <unistd.h>
#include <asm/elphel/c313a.h>
#include <iostream>
#include "streamer.h"
using namespace std;
#undef VIDEO_DEBUG
#undef VIDEO_DEBUG_2 // for timestamp monitoring
#undef VIDEO_DEBUG_3 // for FPS monitoring
//#define VIDEO_DEBUG
//#define VIDEO_DEBUG_2 // for timestamp monitoring
//#define VIDEO_DEBUG_3 // for FPS monitoring
#ifdef VIDEO_DEBUG
#define D(a) a
#else
#define D(a)
#endif
#ifdef VIDEO_DEBUG_2
#define D2(a) a
#else
#define D2(a)
#endif
#ifdef VIDEO_DEBUG_3
#define D3(a) a
#else
#define D3(a)
#endif
//Video *video = NULL;
#define QTABLES_INCLUDE
int fd_circbuf = 0;
int fd_jpeghead = 0; /// to get quantization tables
//int fd_fparmsall = 0;
int lastDaemonBit = DAEMON_BIT_STREAMER;
//struct framepars_all_t *frameParsAll;
//struct framepars_t *framePars;
//unsigned long *globalPars; /// parameters that are not frame-related, their changes do not initiate any actions
Video::Video(void) {
D( cerr << "Video::Video()" << endl;)
D( cerr << __FILE__<< ":"<< __FUNCTION__ << ":" <<__LINE__ << endl;)
stream_name = "video";
params = Parameters::instance();
waitDaemonEnabled(-1); /// <0 - use default
fd_circbuf = open("/dev/circbuf", O_RDONLY);
if(fd_circbuf < 0)
throw("can't open /dev/circbuf");
buffer_length = lseek(fd_circbuf, 0, SEEK_END);
/// mmap for all the lifetime of the program, not per stream. AF
buffer_ptr = (unsigned long *)mmap(0, buffer_length, PROT_READ, MAP_SHARED, fd_circbuf, 0);
if((int)buffer_ptr == -1)
throw("Error in mmap /dev/circbuf");
buffer_ptr_s = (unsigned long *)mmap(buffer_ptr + (buffer_length >>2 ), buffer_length, PROT_READ, MAP_FIXED | MAP_SHARED, fd_circbuf, 0); /// preventing buffer rollovers
if((int)buffer_ptr_s == -1)
throw("Error in second mmap /dev/circbuf");
/// Skip several frames if it is just booted
/// May get stuck here if compressor is off, it should be enabled externally
D( cerr << __FILE__<< ":"<< __FUNCTION__ << ":" <<__LINE__ << " frame=" << params->getGPValue(G_THIS_FRAME) << " buffer_length=" << buffer_length << endl;)
while(params->getGPValue(G_THIS_FRAME) < 10) {
lseek(fd_circbuf, LSEEK_CIRC_TOWP, SEEK_END); /// get to the end of buffer
lseek(fd_circbuf, LSEEK_CIRC_WAIT, SEEK_END); /// wait frame got ready there
}
/// One more wait always to make sure compressor is actually running
lseek(fd_circbuf, LSEEK_CIRC_WAIT, SEEK_END);
lseek(fd_circbuf, LSEEK_CIRC_WAIT, SEEK_END);
D(cerr << __FILE__<< ":"<< __FUNCTION__ << ":" <<__LINE__ << " frame=" << params->getGPValue(G_THIS_FRAME) << " buffer_length=" << buffer_length <<endl;)
fd_jpeghead = open("/dev/jpeghead", O_RDWR);
if(fd_jpeghead < 0)
throw("can't open /dev/jpeghead");
qtables_include = true;
SSRC = 12;
_ptype = 26;
rtp_socket = NULL;
rtcp_socket = NULL;
_play = false;
prev_jpeg_wp = 0;
// buffer_length = 0;
f_quality = -1;
// create thread...
init_pthread((void *)this);
D( cerr << __FILE__<< ":" << __FUNCTION__ << ":" << __LINE__ << endl;)
}
Video::~Video(void) {
cerr << "Video::~Video()" << endl;
if(fd_circbuf > 0)
close(fd_circbuf);
if(fd_jpeghead > 0)
close(fd_jpeghead);
}
/// Compressor should be turned on outside of the streamer
#define TURN_COMPRESSOR_ON 0
void Video::Start(string ip, long port, int _fps_scale, int ttl) {
D( cerr << __FILE__<< ":"<< __FUNCTION__ << ":" <<__LINE__ << "_play=" << _play << endl;)
if(_play) {
cerr << "ERROR-->> wrong usage: Video()->Start() when already play!!!" << endl;
return;
}
//return;
// statistic
v_t_sec = 0;
v_t_usec = 0;
v_frames = 0;
// create udp socket
struct video_desc_t video_desc = get_current_desc(false);
f_width = video_desc.width;
f_height = video_desc.height;
used_width = f_width;
used_height = f_height;
// f_width = width();
// f_height = height();
fps_scale = _fps_scale;
if(fps_scale < 1)
fps_scale = 1;
fps_scale_c = 0;
/// start compressor...NOTE: Maybe it should not?
#if TURN_COMPRESSOR_ON
unsigned long write_data[4];
write_data[0] = FRAMEPARS_SETFRAME;
write_data[1] = params->getGPValue(G_THIS_FRAME) + 1;
write_data[2] = P_COMPRESSOR_RUN;
write_data[3] = COMPRESSOR_RUN_CONT;
write(fd_fparmsall, write_data, sizeof(write_data));
#endif
RTP_Stream::Start(ip, port, ttl);
}
void Video::Stop(void) {
if(!_play)
return;
//return;
RTP_Stream::Stop();
_play = false;
// destroy udp socket
prev_jpeg_wp = 0;
}
/**
* @brief check if this application is enabled (by appropriate bit in P_DAEMON_EN), if not -
* and wait until enabled (return false when enabled)
* @param daemonBit - bit number to accept control in P_DAEMON_EN parameter
* @return (after possible waiting) true if there was no waiting, false if there was waiting
*/
bool Video::waitDaemonEnabled(int daemonBit) { // <0 - use default
if((daemonBit >= 0) && (daemonBit < 32))
lastDaemonBit = daemonBit;
unsigned long this_frame = params->getGPValue(G_THIS_FRAME);
/// No semaphors, so it is possible to miss event and wait until the streamer will be re-enabled before sending message,
/// but it seems not so terrible
D(cerr << " lseek(fd_circbuf, LSEEK_DAEMON_CIRCBUF+lastDaemonBit, SEEK_END)... " << endl;)
lseek(fd_circbuf, LSEEK_DAEMON_CIRCBUF + lastDaemonBit, SEEK_END); ///
D(cerr << "...done" << endl;)
if(this_frame == params->getGPValue(G_THIS_FRAME))
return true;
return false;
}
/**
* @brief check if this application is enabled (by appropriate bit in P_DAEMON_EN)
* @param daemonBit - bit number to accept control in P_DAEMON_EN parameter
* @return (after possible waiting) true if there was no waiting, false if there was waiting
*/
bool Video::isDaemonEnabled(int daemonBit) { // <0 - use default
if((daemonBit >= 0) && (daemonBit < 32))
lastDaemonBit = daemonBit;
// return((framePars[GLOBALPARS(G_THIS_FRAME) & PARS_FRAMES_MASK].pars[P_DAEMON_EN] & (1 << lastDaemonBit)) != 0);
return((params->getFrameValue(P_DAEMON_EN) & (1 << lastDaemonBit)) != 0);
}
/**
* @brief Return (byte) pointer to valid frame 'before' current(if current is invalid - use latest,
* wait if none are ready. Restore (or modify if had to wait) file pointer.
* fill provided frame_pars with the metadata (including the time stamp)
* @param frame_pars - pointer to a interframe parameters structure
* @param before - how many frames before current pointer is needed
* @return pointer (offset in circbuf) to the frame start
*/
long Video::getFramePars(struct interframe_params_t *frame_pars, long before, long ptr_before) {
long cur_pointer, p;
long this_pointer = 0;
if(ptr_before > 0) {
/// if we need some before frame, we should set pointer to saved one (saved with before == 0)
this_pointer = lseek(fd_circbuf, ptr_before, SEEK_SET); /// restore the file pointer
}
if(ptr_before < 0) {
/// otherwise, set pointer to the actual frame
this_pointer = lseek(fd_circbuf, LSEEK_CIRC_TOWP, SEEK_END); /// byte index in circbuf of the frame start
}
if(ptr_before == 0)
this_pointer = lseek(fd_circbuf, 0, SEEK_CUR); /// save orifinal file pointer
char *char_buffer_ptr = (char *)buffer_ptr;
if(lseek(fd_circbuf, LSEEK_CIRC_VALID, SEEK_END) < 0) { /// Invalid frame - reset to the latest acquired
this_pointer = lseek(fd_circbuf, LSEEK_CIRC_LAST, SEEK_END); /// Last acquired frame (may be not yet available if none are)
}
cur_pointer = this_pointer;
if(before == 0)
lseek(fd_circbuf, LSEEK_CIRC_WAIT, SEEK_END);
while(before && (((p = lseek(fd_circbuf, LSEEK_CIRC_PREV, SEEK_END))) >= 0)) { /// try to get earlier valid frame
cur_pointer = p;
before--;
}
/// if 'before' is still >0 - not enough frames acquired, wait for more
while(before > 0) {
lseek(fd_circbuf, this_pointer, SEEK_SET);
lseek(fd_circbuf, LSEEK_CIRC_WAIT, SEEK_END);
this_pointer = lseek(fd_circbuf, LSEEK_CIRC_NEXT, SEEK_END);
before--;
}
long metadata_start = cur_pointer - 32;
if(metadata_start < 0)
metadata_start += buffer_length;
/// copy the interframe data (timestamps are not yet there)
D(cerr << __FILE__<< ":"<< __FUNCTION__ << ":" <<__LINE__ << " before=" << before << " metadata_start=" << metadata_start << endl;)
memcpy(frame_pars, &char_buffer_ptr[metadata_start], 32);
long jpeg_len = frame_pars->frame_length; //! frame_pars->frame_length is now the length of bitstream
if(frame_pars->signffff != 0xffff) {
cerr << __FILE__<< ":"<< __FUNCTION__ << ":" <<__LINE__ << " Wrong signature in getFramePars() (broken frame), frame_pars->signffff="<< frame_pars->signffff << endl;
int i;
long * dd =(long *) frame_pars;
cerr << hex << (metadata_start/4) << ": ";
// for (i=0;i<8;i++) {
for (i=0;i<8;i++) {
cerr << hex << dd[i] << " ";
}
cerr << dec << endl;
return -1;
} else {
// cerr << hex << (metadata_start/4) << dec << endl; ///************* debug
}
/// find location of the timestamp and copy it to the frame_pars structure
///==================================
long timestamp_start = (cur_pointer) + ((jpeg_len + CCAM_MMAP_META + 3) & (~0x1f)) + 32 - CCAM_MMAP_META_SEC; //! magic shift - should index first byte of the time stamp
if(timestamp_start >= buffer_length)
timestamp_start -= buffer_length;
memcpy(&(frame_pars->timestamp_sec), &char_buffer_ptr[timestamp_start], 8);
if(ptr_before == 0)
lseek(fd_circbuf, this_pointer, SEEK_SET); /// restore the file pointer
//D(cerr << __FILE__<< ":"<< __FUNCTION__ << ":" <<__LINE__ << " this_pointer=" << this_pointer << " cur_pointer=" << cur_pointer << endl;)
return cur_pointer;
}
/// In the next function I assume that the frame pointed by current file pointer in circbuf is ready. Otherwise
/// (if it points at next frame to be acquired) we need to increase argument of getValidFrame(long before) by 1
/// get all parameters together
#define FRAMEPARS_BEFORE 0 /// Change to 1 if frames are not yet ready when these functions are called
struct video_desc_t Video::get_current_desc(bool with_fps) {
struct interframe_params_t frame_pars, prev_pars;
struct video_desc_t video_desc;
video_desc.valid = false;
long ptr = -1;
if((ptr = getFramePars(&frame_pars, FRAMEPARS_BEFORE, -1)) < 0) {
return video_desc;
} else {
if(with_fps) {
if(getFramePars(&prev_pars, FRAMEPARS_BEFORE + 1, ptr) < 0)
return video_desc;
double fps = (frame_pars.timestamp_sec - prev_pars.timestamp_sec);
fps *= 1000000.0;
fps += frame_pars.timestamp_usec;
fps -= prev_pars.timestamp_usec;
D3( float _f = fps;)
fps = 1000000.0 / fps;
video_desc.fps = (used_fps = fps);
D( cerr << __FILE__<< ":"<< __FUNCTION__ << ":" <<__LINE__ << " fps=" << fps << endl;)
// cerr << __FILE__<< ":"<< __FUNCTION__ << ":" <<__LINE__ << " fps=" << video_desc.fps << endl;
D3(if(_f == 0))
D3(cerr << "delta == " << _f << endl << endl;)
}
}
video_desc.valid = true;
// video_desc.width = (used_width = frame_pars.width);
// video_desc.height = (used_height = frame_pars.height);
video_desc.width = frame_pars.width;
video_desc.height = frame_pars.height;
video_desc.quality = frame_pars.quality2;
return video_desc;
}
//#define FRAMES_AHEAD_FPS 3 /// number of frames ahead of current to frite FPS limit
//#define FRAMES_SKIP_FPS 3 /// number of frames to wait after target so circbuf will have at least 2 frames with new fps for calculation
void Video::fps(float fps) {
if(fps < 0.01)
return;
/// currently limiting FPS only works with free running TODO: Add external trigger frequency support.
unsigned long write_data[6];
long target_frame = params->getGPValue(G_THIS_FRAME) + FRAMES_AHEAD_FPS;
write_data[0] = FRAMEPARS_SETFRAME;
write_data[1] = target_frame; /// wait then for that frame to be available on the output plus 2 frames for fps to be stable
write_data[2] = P_FP1000SLIM;
write_data[3] = (unsigned long)fps * 1000;
write_data[4] = P_FPSFLAGS;
write_data[5] = 3;
// long rslt = write(fd_fparmsall, write_data, sizeof(write_data));
int rslt = params->write(write_data, sizeof(write_data));
if(rslt == sizeof(write_data)) { /// written OK
// lseek(fd_fparmsall, LSEEK_FRAME_WAIT_ABS + target_frame + FRAMES_SKIP_FPS, SEEK_END); /// skip frames
params->lseek(LSEEK_FRAME_WAIT_ABS + target_frame + FRAMES_SKIP_FPS, SEEK_END); /// skip frames
}
}
#define USE_REAL_OLD_TIMESTAMP 0
long Video::capture(void) {
long frame_len;
struct interframe_params_t frame_pars;
// long len;
int quality;
unsigned long latestAvailableFrame_ptr;
unsigned long frameStartByteIndex;
int before;
///Make sure the streamer is not disabled through the bit in P_DAEMON_EN
// if((framePars[pars->getGPValue(G_THIS_FRAME) & PARS_FRAMES_MASK].pars[P_DAEMON_EN] & (1 << lastDaemonBit)) == 0) {
if((params->getFrameValue(P_DAEMON_EN) & (1 << lastDaemonBit)) == 0) {
return -DAEMON_DISABLED; /// return exception (will stop the stream)
}
frameStartByteIndex = lseek(fd_circbuf, LSEEK_CIRC_TOWP, SEEK_END); /// byte index in circbuf of the frame start
latestAvailableFrame_ptr = frameStartByteIndex;
lseek(fd_circbuf, LSEEK_CIRC_WAIT, SEEK_END);
frame_ptr = (char *)((unsigned long)buffer_ptr + latestAvailableFrame_ptr);
//fprintf(stderr, "frame_ptr == %08X; ", frame_ptr);
if(latestAvailableFrame_ptr < 32)
latestAvailableFrame_ptr += buffer_length;
latestAvailableFrame_ptr >>= 2;
frame_len = buffer_ptr[latestAvailableFrame_ptr - 1];
// read timestamp
char *ts_ptr = (char *)((unsigned long)frame_ptr + (long)(((frame_len + CCAM_MMAP_META + 3) & (~0x1f)) + 32 - CCAM_MMAP_META_SEC));
unsigned long t[2];
memcpy(&t, (void *)ts_ptr, 8);
f_tv.tv_sec = t[0];
f_tv.tv_usec = t[1];
// read Q value
char *meta = (char *)frame_ptr;
meta -= 32;
if(meta < (char *)buffer_ptr)
meta += buffer_length;
struct interframe_params_t *fp = (struct interframe_params_t *)meta;
/// See if the frame parameters are the same as used when starting the stream,
/// Otherwise check for up to G_SKIP_DIFF_FRAME older frames and return them instead,
/// If that number is exceeded - return exception
/// Each time the latest acquired frame is considered, so we do not need to save frmae poointer additionally
if((fp->width != used_width) || (fp->height != used_height)) {
for(before = 1; before <= (int)params->getGPValue(G_SKIP_DIFF_FRAME); before++) {
if(((frameStartByteIndex = getFramePars(&frame_pars, before))) && (frame_pars.width == used_width) && (frame_pars.height == used_height)) {
/// substitute older frame instead of the latest one. Leave wrong timestamp?
/// copying code above (may need some cleanup). Maybe - just move earlier so there will be no code duplication?
latestAvailableFrame_ptr = frameStartByteIndex;
frame_ptr = (char *)((unsigned long)buffer_ptr + latestAvailableFrame_ptr);
if(latestAvailableFrame_ptr < 32)
latestAvailableFrame_ptr += buffer_length;
latestAvailableFrame_ptr >>= 2;
frame_len = buffer_ptr[latestAvailableFrame_ptr - 1];
#if USE_REAL_OLD_TIMESTAMP
/// read timestamp
ts_ptr = (char *)((unsigned long)frame_ptr + (long)(((frame_len + CCAM_MMAP_META + 3) & (~0x1f)) + 32 - CCAM_MMAP_META_SEC));
memcpy(&t, (void *)ts_ptr, 8);
f_tv.tv_sec = t[0];
f_tv.tv_usec = t[1];
#endif
//cerr << "skip frame: before == " << before << endl;
//cerr << "used_width == " << used_width << "; current_width == " << frame_pars.width << endl;
/// update interframe data pointer
// char *meta = (char *)frame_ptr;
meta = (char *)frame_ptr;
meta -= 32;
if(meta < (char *)buffer_ptr)
meta += buffer_length;
fp = (struct interframe_params_t *)meta;
break;
}
}
if(before > (int) params->getGPValue(G_SKIP_DIFF_FRAME)) {
D(cerr << __FILE__<< ":"<< __FUNCTION__ << ":" <<__LINE__<< " Killing stream because of frame size change " << endl;)
return -SIZE_CHANGE; /// It seems that frame size is changed for good, need to restart the stream
}
D(cerr << __FILE__<< ":"<< __FUNCTION__ << ":" <<__LINE__<< " Waiting for the original frame size to be restored , using " << before << " frames ago" << endl;)
}
///long Video::getFramePars(struct interframe_params_t * frame_pars, long before) {
///getGPValue(unsigned long GPNumber)
quality = fp->quality2;
if(qtables_include && quality != f_quality) {
D(cerr << __FILE__<< ":"<< __FUNCTION__ << ":" <<__LINE__<< " Updating quality tables, new quality is " << quality << endl;)
lseek(fd_jpeghead, frameStartByteIndex | 2, SEEK_END); /// '||2' indicates that we need just quantization tables, not full JPEG header
read(fd_jpeghead, (void *)&qtable[0], 128);
}
f_quality = quality;
/*
// check statistic
static bool first = true;
if(first) {
struct timeval tv;
gettimeofday(&tv, NULL);
first = false;
fprintf(stderr, "VIDEO first with time: %d:%06d at: %d:%06d\n", f_tv.tv_sec, f_tv.tv_usec, tv.tv_sec, tv.tv_usec);
}
*/
return frame_len;
}
long Video::process(void) {
//D(cerr << "< ";)
int _plen = 1400;
int to_send = _plen;
int _qtables_len = 128 + 4;
long frame_len = capture();
if(frame_len == 0) {
//D(cerr << "[";)
// return false;
return 0; /// now never here
} else {
if(frame_len < 0) {
D(cerr << __FILE__<< ":"<< __FUNCTION__ << ":" <<__LINE__<< "capture returned negative" << frame_len << endl;)
// return false;
return frame_len; /// attention (restart) is needed
}
}
// check FPS decimation
bool to_skip = true;
if(fps_scale_c == 0)
to_skip = false;
fps_scale_c++;
if(fps_scale_c >= fps_scale)
fps_scale_c = 0;
//cerr << "fps_scale == " << fps_scale << "; fps_scale_c == " << fps_scale_c << "; to_skip == " << to_skip << endl;
if(to_skip)
return 1;
int to_send_len = frame_len;
unsigned char h[20 + 4];
int packet_len = 0;
unsigned char *data = (unsigned char *)frame_ptr;
uint64_t t = f_tv.tv_sec;
t *= 90000;
t &= 0x00FFFFFFFF;
timestamp = t;
double f = f_tv.tv_usec;
f /= 1000000.0;
f *= 90000.0;
timestamp += (uint32_t)f;
uint32_t ts;
ts = timestamp;
ts = htonl(ts);
long offset = 0;
void *v_ptr[4];
int v_len[4] = {0, 0, 0, 0};
bool first = true;
while(to_send_len && _play) {
unsigned long pnum = htons(packet_num);
bool last = false;
to_send = _plen;
if(qtables_include && first)
to_send = _plen - _qtables_len;
if(to_send_len <= to_send) {
packet_len = to_send_len;
to_send_len = 0;
last = true;
} else {
packet_len = to_send;
to_send_len -= to_send;
}
// make RTP packet
h[0] = 0x80;
if(!last)
h[1] = _ptype;
else
h[1] = 0x80 + _ptype;
memcpy((void *)&h[2], (void *)&pnum, 2);
memcpy((void *)&h[4], (void *)&ts, 4);
memcpy((void *)&h[8], (void *)&SSRC, 4);
// make MJPEG header
unsigned long off = htonl(offset);
memcpy((void *)&h[12], (void *)&off, 4);
h[12] = 0x00;
h[16] = 0x01;
unsigned int q = f_quality;
if(qtables_include)
q += 128;
h[17] = (unsigned char)(q & 0xFF);
if(f_width <= 2040)
h[18] = (f_width / 8) & 0xFF;
else
h[18] = 0;
if(f_height <= 2040)
h[19] = (f_height / 8) & 0xFF;
else
h[19] = 0;
h[20] = 0;
h[21] = 0;
unsigned short l = htons(128);
memcpy((void *)&h[22], (void *)&l, 2);
// update RTCP statistic
rtp_packets++;
rtp_octets += packet_len + 8; // data + MJPEG header
// send vector
if(first) {
v_ptr[0] = h;
if(qtables_include) {
v_len[0] = 24;
v_ptr[1] = qtable;
v_len[1] = 128;
v_ptr[2] = data;
v_len[2] = packet_len;
rtp_socket->send3v(&v_ptr[0], &v_len[0]);
} else {
v_len[0] = 20;
v_ptr[1] = data;
v_len[1] = packet_len;
rtp_socket->send2v(&v_ptr[0], &v_len[0]);
}
first = false;
} else {
v_ptr[0] = h;
v_len[0] = 20;
v_ptr[1] = data;
v_len[1] = packet_len;
rtp_socket->send2v(&v_ptr[0], &v_len[0]);
}
// --==--
packet_num++;
data += packet_len;
offset += packet_len;
}
//D(cerr << "]";)
// return true;
return 1;
}
src/video.h 0 → 100644
View file @ be058841
#ifndef _VIDEO__H_
#define _VIDEO__H_
#include <string>
#include "rtp_stream.h"
#include "parameters.h"
using namespace std;
#include <asm/elphel/c313a.h>
#define FRAMES_AHEAD_FPS 3 /// number of frames ahead of current to frite FPS limit
#define FRAMES_SKIP_FPS 3 /// number of frames to wait after target so circbuf will have at least 2 frames with new fps for calculation
/// structure to store current video description
struct video_desc_t {
bool valid;
int width;
int height;
int quality;
float fps;
};
class Video : public RTP_Stream {
public:
enum vevent {
VEVENT0,
DAEMON_DISABLED,
FPS_CHANGE,
SIZE_CHANGE
};
Video(void);
virtual ~Video(void);
/// return description of the current frame - i.e. current video parameters
struct video_desc_t get_current_desc(bool with_fps = true);
void fps(float);
void Start(string ip, long port, int fps_scale, int ttl = -1);
void Stop(void);
Parameters *params;
/// Using Video class to interface global camera parameters
bool waitDaemonEnabled(int daemonBit); // <0 - use default
bool isDaemonEnabled(int daemonBit); // <0 - use default
protected:
long getFramePars(struct interframe_params_t * frame_pars, long before, long ptr_before = 0);
unsigned long prev_jpeg_wp;
// frame params
int f_width;
int f_height;
int f_quality;
bool qtables_include;
unsigned char qtable[128];
// struct timeval f_tv;
long buffer_length;
unsigned long *buffer_ptr;
unsigned long *buffer_ptr_s; /// Second copy of the circbuf just after the end of the first to prevent rollovers
void *frame_ptr;
long capture(void);
// bool process(void);
long process(void);
// for statistic
long v_t_sec;
long v_t_usec;
int v_frames;
unsigned long used_width; ///frame width reported by Video::width(), used as the stream width
unsigned long used_height; /// similar to above
float used_fps; /// similar to above
int fps_scale;
int fps_scale_c; // counter for fps_scale
};
//extern Video *video;
#endif // _VIDEO__H_
used_files.py 0 → 100755
View file @ be058841
#!/usr/bin/env python
# encoding: utf-8
from __future__ import division
from __future__ import print_function
"""
# @file used_files.py
# @brief Extract file access data after build, modify CDT project configuration
# (.cproject) accordingly
# @copyright Copyright (C) 2016, Elphel.inc.
# @param <b>License</b>
# 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 3 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, see <http:#www.gnu.org/licenses/>.
@author: Andrey Filippov
@license: GPLv3.0+
@contact: andrey@elphel.coml
@deffield updated: Updated
"""
__author__ = "Andrey Filippov"
__copyright__ = "Copyright 2016, Elphel, Inc."
__license__ = "GPL"
__version__ = "3.0+"
__maintainer__ = "Andrey Filippov"
__email__ = "andrey@elphel.com"
__status__ = "Development"
import sys
import os
import time
import xml.etree.ElementTree as ET
'''
TODO:Automate, find out why separate touch commands are needed
Run this program twice:
1-st run ./used_files.py linux -1
and save shown timestamp
Then run (some mystery here)
touch src/drivers/ata/ahci_elphel.c
touch src/drivers/elphel/sensor_common.c
Wait 5 seconds and run (in a different console with appropriate sourcing)
bitbake linux-xlnx -c compile -f
Then again
./used_files.py linux <timestamp_from_the_first_run>
If somethong went wrong you will need to resore .cproject from eclipse_project_setup directory
For php:
bitbake php -c cleansstate
bitbake php -c unpack -f
bitbake php -c configure -f
./used_files.py php -1
bitbake php -c compile -f
./used_files.py php 1471044836.8
Doing:
bitbake php -c compile -f
./used_files.py php -1
bitbake php -c compile -f
./used_files.py php 1471044836.8
Corrupts make process
'''
def file_tree(flist): # Each file in list is a file, no directories
ftree={}
for p in flist:
node = ftree
seg_list=p.split(os.sep)
last_i=len(seg_list)-1
for i,segm in enumerate(seg_list):
if not segm in node:
if i == last_i:
node[segm] = None
else:
node[segm] = {}
node=node[segm]
return ftree
def exclude_list(ftree, flist):
mark = "*" # no file/dir name can be "*"
def list_tree_recursive(root):
rslt = []
if not mark in root:
return [[""]] # convert to trailing "/" for directories
for n in root:
if not n == mark:
if root[n] is None:
rslt.append([n])
else:
for l in list_tree_recursive(root[n]):
rslt.append([n]+l)
return rslt
ftree[mark]=None # mark top level dir
for p in flist:
node = ftree
for segm in p.split(os.sep)[:-1]:
node=node[segm]
node[mark]=None # [mark] means used in flist
del node[p.split(os.sep)[-1]]
#print (ftree)
# for k in ftree:
# print(k)
#Now prune unused directories
#prune_recursive(ftree) # (assuming root is used)
# now create list
files_list_list = list_tree_recursive(ftree)
# print (files_list_list)
#converrt to file paths
pl = []
for l in files_list_list:
pl.append(os.path.join(*(l[1:])))
pl = sorted (pl)
return pl
def proc_tree():
DEBUG = True
extensions = [".h",".c",".cpp"]
exclude_start = ["linux"+os.sep+"scripts"+os.sep,"linux"+os.sep+"source"+os.sep+"scripts"+os.sep]
delta_t = 3 # seconds
try:
root_path = sys.argv[1]
except:
print ("Calling %s <root directory path> [timestamp]"%(os.path.basename(sys.argv[0])))
try:
start_time = float(sys.argv[2])
except:
start_time = 0.0
touch_files= start_time < 0.0
print ("root_path = %s"%(root_path))
# root_path = "/home/eyesis/git/poky/linux-elphel/linux/"
lstFiles = []
# Append files to a list
for path, _, files in os.walk(root_path, followlinks = True):
for f in files:
for ext in extensions:
if f.endswith(ext):
lstFiles.append(os.path.join(path, f))
break
all_tree= file_tree(sorted(lstFiles))
include_lst=[]
lst_a = []
latest_at=0
for p in lstFiles:
if touch_files:
if os.path.islink(p):
try:
os.utime(os.path.realpath(p), None)
except:
print("missing linked file: %s"%(os.path.realpath(p)))
else:
os.utime(p, None)
else:
# at = time.ctime(os.stat(p).st_atime)
try:
at = os.stat(p).st_atime
l = None
except:
at = 0
if os.path.islink(p):
try:
l = os.path.realpath(p)
at = os.stat(l).st_atime
except:
at = 0 # missing file
latest_at = max((latest_at,at))
if at > (start_time + delta_t):
#Scripts/lexers result in problems
exclude=False
for exStr in exclude_start:
if p.startswith(exStr):
exclude=True
break
if exclude:
break
#exclude_start
lst_a.append([p,at,l])
include_lst.append(p)
if touch_files:
print (len(lstFiles), "last time = ", time.time())
return
excluding = exclude_list(all_tree, include_lst)
# print (all_tree)
# print (sorted(include_lst))
# print ("|".join(excluding))
if DEBUG:
with open("all_sources.lst","w" ) as f:
for p in sorted(lstFiles):
try:
at = os.stat(p).st_atime
except:
at = 0
lnk=""
if os.path.islink(p):
try:
at = os.stat(os.path.realpath(p)).st_atime
except:
at = 0
lnk = os.path.realpath(p)
print (p,at,lnk, file=f)
with open("excluding.lst","w" ) as f:
for p in excluding:
print (p, file=f)
with open("including.lst","w" ) as f:
for p in include_lst:
print (p, file=f)
# include_tree= file_tree(sorted(include_lst))
# print(include_tree)
root_dir=include_lst[0].split(os.sep)[0]
print ("root_dir=",root_dir)
xml= ET.parse(".cproject")
root=xml.getroot()
# for child in root:
# print(child.tag, child.attrib)
for child in root.iter('sourceEntries'):
for gchild in child:
print(gchild.tag)
for child in root.iter('sourceEntries'):
for gchild in child:
if gchild.tag == 'entry':
attr = gchild.attrib
try:
if (attr['kind'] == 'sourcePath') and (attr['name'] == root_dir):
child.remove (gchild)
print ("Removed existing entry ",gchild.tag)
break
except:
print ("error matching attributes for ",gchild.tag)
pass
break #after first 'sourceEntries' - should be just one?
ET.SubElement(child, 'entry', {"flags":"VALUE_WORKSPACE_PATH", "kind":"sourcePath", "name":root_dir, "excluding":"|".join(excluding)})
for child in root.iter('sourceEntries'):
for gchild in child:
print(gchild.tag)
oneliner= ET.tostring(root)
#overwrites original .cproject, may change to somethong different
with open(".cproject", "wr") as f:
f.write("""<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<?fileVersion 4.0.0?>""")
f.write(oneliner)
print (len(lstFiles), len(lst_a), "last access time = ",latest_at)
if __name__ == '__main__':
proc_tree()
"""
make clean # otherwise compiled files are preserved
bitbake apps-autoexposure -c cleansstate
bitbake apps-autoexposure -c unpack -f
bitbake apps-autoexposure -c configure -f
./used_files.py sysroots -1
bitbake apps-autoexposure -c compile -f
./used_files.py sysroots 1473297567.42
eyesis@eyesis-SH87R:~/git/elphel393/rootfs-elphel/elphel-apps-autoexposure$ ./used_files.py sysroots/elphel393/usr -1
root_path = sysroots/elphel393/usr
5615 last time = 1473300068.01
eyesis@eyesis-SH87R:~/git/elphel393/rootfs-elphel/elphel-apps-autoexposure$ ./used_files.py sysroots/elphel393/usr 1473300068.01
root_path = sysroots/elphel393/usr
root_dir= sysroots
entry
entry
entry
entry
entry
5615 84 last access time = 1473300080.1
"""
\ No newline at end of file
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