Commit 877df57d authored by Mikhail Karpenko's avatar Mikhail Karpenko
Browse files

WIP: compile video interface without errors

parent b929b395

src/video.cpp

+83 −47
Original line number Diff line number Diff line 
/**

 * @file FILENAME

 * @brief BRIEF DESCRIPTION

 * @copyright Copyright (C) YEAR Elphel Inc.

 * @file video.cpp

 * @brief Provides video interface for streamer

 * @copyright Copyright (C) 2017 Elphel Inc.

 * @author AUTHOR <EMAIL>

 *

 * @par License:
@@ -28,19 +28,21 @@ 
#include <arpa/inet.h>

#include <fcntl.h>

#include <unistd.h>



#include <asm/elphel/c313a.h>



#include <iostream>

#include <sstream>

#include <string>

#include <elphel/x393_devices.h>



#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

//#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
@@ -64,8 +66,8 @@ using namespace std; 


#define QTABLES_INCLUDE



int fd_circbuf = 0;

int fd_jpeghead = 0; /// to get quantization tables

//int fd_circbuf = 0;

//int fd_jpeghead = 0; /// to get quantization tables

//int fd_fparmsall = 0;

int lastDaemonBit = DAEMON_BIT_STREAMER;
@@ -73,23 +75,50 @@ int lastDaemonBit = DAEMON_BIT_STREAMER; 
//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;)

static const char *circbuf_file_names[] = {

		DEV393_PATH(DEV393_CIRCBUF0), DEV393_PATH(DEV393_CIRCBUF1),

		DEV393_PATH(DEV393_CIRCBUF2), DEV393_PATH(DEV393_CIRCBUF3)

};

static const char *jhead_file_names[] = {

		DEV393_PATH(DEV393_JPEGHEAD0), DEV393_PATH(DEV393_JPEGHEAD1),

		DEV393_PATH(DEV393_JPEGHEAD2), DEV393_PATH(DEV393_JPEGHEAD3)

};



Video::Video(int port, Parameters *pars) {

	string err_msg;



	D( cerr << "Video::Video() on port " << port << endl;)

	D( cerr << __FILE__<< ":"<< __FUNCTION__ << ":" <<__LINE__ << endl;)

	params = pars;

	sensor_port = port;

	stream_name = "video";

	params = Parameters::instance();

//	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");

	fd_circbuf = open(circbuf_file_names[sensor_port], O_RDONLY);

	if (fd_circbuf < 0) {

		err_msg = "can't open " + static_cast<ostringstream &>(ostringstream() << dec << sensor_port).str();

		throw runtime_error(err_msg);

	}



	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");

	if ((int) buffer_ptr == -1) {

		err_msg = "can't mmap " + *circbuf_file_names[sensor_port];

		throw runtime_error(err_msg);

	}

	cout << "<-- 1" << endl;

//	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

	buffer_ptr_s = (unsigned long *) mmap(buffer_ptr + (buffer_length >> 2), 100 * 4096,

			PROT_READ, MAP_FIXED | MAP_SHARED, fd_circbuf, 0);   /// preventing buffer rollovers

	cout << "<-- 2" << endl;

	if ((int) buffer_ptr_s == -1) {

		err_msg = "can't create second mmap for " + *circbuf_file_names[sensor_port];

		throw runtime_error(err_msg);

	}

	cout << "<-- 3" << endl;



	/// 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;)
@@ -101,9 +130,11 @@ D( cerr << __FILE__<< ":"<< __FUNCTION__ << ":" <<__LINE__ << " frame=" << para 
	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");

	fd_jpeghead = open(jhead_file_names[sensor_port], O_RDWR);

	if (fd_jpeghead < 0) {

		err_msg = "can't open " + *jhead_file_names[sensor_port];

		throw runtime_error(err_msg);

	}

	qtables_include = true;



	SSRC = 12;
@@ -112,7 +143,6 @@ D( cerr << __FILE__<< ":"<< __FUNCTION__ << ":" <<__LINE__ << " frame=" << para 
	rtcp_socket = NULL;

	_play = false;

	prev_jpeg_wp = 0;

//	buffer_length = 0;

	f_quality = -1;



	// create thread...
@@ -121,7 +151,15 @@ D( cerr << __FILE__<< ":" << __FUNCTION__ << ":" << __LINE__ << endl;) 
}



Video::~Video(void) {

cerr << "Video::~Video()" << endl;

	cerr << "Video::~Video() on port " << sensor_port << endl;

	if (buffer_ptr != NULL) {

		munmap(buffer_ptr, buffer_length);

		buffer_ptr = NULL;

	}

	if (buffer_ptr_s != NULL) {

		munmap(buffer_ptr_s, buffer_length);

		buffer_ptr_s = NULL;

	}

	if (fd_circbuf > 0)

		close(fd_circbuf);

	if (fd_jpeghead > 0)
@@ -188,7 +226,7 @@ bool Video::waitDaemonEnabled(int daemonBit) { // <0 - use default 
	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;)

	D(cerr << " lseek(fd_circbuf" << fd_circbuf << ", LSEEK_DAEMON_CIRCBUF+lastDaemonBit, SEEK_END)... " << endl;)

	lseek(fd_circbuf, LSEEK_DAEMON_CIRCBUF + lastDaemonBit, SEEK_END); /// 

	D(cerr << "...done" << endl;)
@@ -322,8 +360,6 @@ D3(cerr << "delta == " << _f << endl << endl;) 
	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;

src/video.h

+8 −8
Original line number Diff line number Diff line 
/**

 * @file FILENAME

 * @brief BRIEF DESCRIPTION

 * @copyright Copyright (C) YEAR Elphel Inc.

 * @file video.h

 * @brief Provides video interface for streamer

 * @copyright Copyright (C) 2017 Elphel Inc.

 * @author AUTHOR <EMAIL>

 *

 * @par License:
@@ -28,10 +28,8 @@ 


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

#define FRAMES_AHEAD_FPS 3 /// number of frames ahead of current to write 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 {
@@ -51,7 +49,7 @@ public: 
		SIZE_CHANGE

	};



	Video(void);

	Video(int port, Parameters *pars);



	virtual ~Video(void);

	/// return description of the current frame - i.e. current video parameters
@@ -81,6 +79,8 @@ protected: 
	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;

	int fd_circbuf;

	int fd_jpeghead;



	long capture(void);

//	bool process(void);