808 lines
25 KiB
C++
808 lines
25 KiB
C++
//
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// ZoneMinder Event Class Implementation, $Date$, $Revision$
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// Copyright (C) 2001-2008 Philip Coombes
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//
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// This program is free software; you can redistribute it and/or
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// modify it under the terms of the GNU General Public License
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// as published by the Free Software Foundation; either version 2
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// of the License, or (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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//
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#include <fcntl.h>
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#include <sys/socket.h>
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#include <arpa/inet.h>
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#include <sys/un.h>
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#include <sys/uio.h>
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#include <sys/ipc.h>
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#include <sys/msg.h>
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#include <getopt.h>
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#include <arpa/inet.h>
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#include <glob.h>
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#include "zm.h"
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#include "zm_db.h"
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#include "zm_time.h"
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#include "zm_mpeg.h"
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#include "zm_signal.h"
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#include "zm_event.h"
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#include "zm_monitor.h"
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// sendfile tricks
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extern "C"
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{
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#include "zm_sendfile.h"
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}
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bool EventStream::loadInitialEventData( int monitor_id, time_t event_time ) {
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static char sql[ZM_SQL_SML_BUFSIZ];
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snprintf( sql, sizeof(sql), "select Id from Events where MonitorId = %d and unix_timestamp( EndTime ) > %ld order by Id asc limit 1", monitor_id, event_time );
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if ( mysql_query( &dbconn, sql ) ) {
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Error( "Can't run query: %s", mysql_error( &dbconn ) );
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exit( mysql_errno( &dbconn ) );
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}
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MYSQL_RES *result = mysql_store_result( &dbconn );
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if ( !result ) {
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Error( "Can't use query result: %s", mysql_error( &dbconn ) );
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exit( mysql_errno( &dbconn ) );
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}
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MYSQL_ROW dbrow = mysql_fetch_row( result );
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if ( mysql_errno( &dbconn ) ) {
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Error( "Can't fetch row: %s", mysql_error( &dbconn ) );
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exit( mysql_errno( &dbconn ) );
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}
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int init_event_id = atoi( dbrow[0] );
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mysql_free_result( result );
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loadEventData( init_event_id );
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if ( event_time ) {
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curr_stream_time = event_time;
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curr_frame_id = 1;
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if ( event_time >= event_data->start_time ) {
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for (unsigned int i = 0; i < event_data->frame_count; i++ ) {
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//Info( "eft %d > et %d", event_data->frames[i].timestamp, event_time );
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if ( event_data->frames[i].timestamp >= event_time ) {
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curr_frame_id = i+1;
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Debug( 3, "Set cst:%.2f", curr_stream_time );
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Debug( 3, "Set cfid:%d", curr_frame_id );
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break;
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}
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}
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Debug( 3, "Skipping %ld frames", event_data->frame_count );
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}
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}
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return( true );
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}
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bool EventStream::loadInitialEventData( int init_event_id, unsigned int init_frame_id ) {
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loadEventData( init_event_id );
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if ( init_frame_id ) {
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curr_stream_time = event_data->frames[init_frame_id-1].timestamp;
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curr_frame_id = init_frame_id;
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} else {
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curr_stream_time = event_data->start_time;
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}
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return( true );
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}
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bool EventStream::loadEventData( int event_id ) {
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static char sql[ZM_SQL_MED_BUFSIZ];
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snprintf( sql, sizeof(sql), "SELECT MonitorId, Frames, unix_timestamp( StartTime ) AS StartTimestamp, (SELECT max(Delta)-min(Delta) FROM Frames WHERE EventId=Events.Id) AS Duration, DefaultVideo FROM Events WHERE Id = %d", event_id );
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if ( mysql_query( &dbconn, sql ) ) {
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Error( "Can't run query: %s", mysql_error( &dbconn ) );
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exit( mysql_errno( &dbconn ) );
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}
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MYSQL_RES *result = mysql_store_result( &dbconn );
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if ( !result ) {
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Error( "Can't use query result: %s", mysql_error( &dbconn ) );
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exit( mysql_errno( &dbconn ) );
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}
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if ( !mysql_num_rows( result ) ) {
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Fatal( "Unable to load event %d, not found in DB", event_id );
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}
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MYSQL_ROW dbrow = mysql_fetch_row( result );
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if ( mysql_errno( &dbconn ) ) {
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Error( "Can't fetch row: %s", mysql_error( &dbconn ) );
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exit( mysql_errno( &dbconn ) );
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}
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delete event_data;
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event_data = new EventData;
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event_data->event_id = event_id;
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event_data->monitor_id = atoi( dbrow[0] );
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event_data->start_time = atoi(dbrow[2]);
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if ( config.use_deep_storage ) {
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struct tm *event_time = localtime( &event_data->start_time );
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if ( staticConfig.DIR_EVENTS.c_str()[0] == '/' )
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snprintf( event_data->path, sizeof(event_data->path), "%s/%ld/%02d/%02d/%02d/%02d/%02d/%02d", staticConfig.DIR_EVENTS.c_str(), event_data->monitor_id, event_time->tm_year-100, event_time->tm_mon+1, event_time->tm_mday, event_time->tm_hour, event_time->tm_min, event_time->tm_sec );
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else
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snprintf( event_data->path, sizeof(event_data->path), "%s/%s/%ld/%02d/%02d/%02d/%02d/%02d/%02d", staticConfig.PATH_WEB.c_str(), staticConfig.DIR_EVENTS.c_str(), event_data->monitor_id, event_time->tm_year-100, event_time->tm_mon+1, event_time->tm_mday, event_time->tm_hour, event_time->tm_min, event_time->tm_sec );
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} else {
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if ( staticConfig.DIR_EVENTS.c_str()[0] == '/' )
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snprintf( event_data->path, sizeof(event_data->path), "%s/%ld/%ld", staticConfig.DIR_EVENTS.c_str(), event_data->monitor_id, event_data->event_id );
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else
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snprintf( event_data->path, sizeof(event_data->path), "%s/%s/%ld/%ld", staticConfig.PATH_WEB.c_str(), staticConfig.DIR_EVENTS.c_str(), event_data->monitor_id, event_data->event_id );
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}
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event_data->frame_count = dbrow[1] == NULL ? 0 : atoi(dbrow[1]);
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event_data->duration = atof(dbrow[3]);
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strncpy( event_data->video_file, dbrow[4], sizeof( event_data->video_file )-1 );
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updateFrameRate( (double)event_data->frame_count/event_data->duration );
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mysql_free_result( result );
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snprintf( sql, sizeof(sql), "select FrameId, unix_timestamp( `TimeStamp` ), Delta from Frames where EventId = %d order by FrameId asc", event_id );
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if ( mysql_query( &dbconn, sql ) ) {
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Error( "Can't run query: %s", mysql_error( &dbconn ) );
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exit( mysql_errno( &dbconn ) );
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}
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result = mysql_store_result( &dbconn );
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if ( !result ) {
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Error( "Can't use query result: %s", mysql_error( &dbconn ) );
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exit( mysql_errno( &dbconn ) );
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}
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event_data->n_frames = mysql_num_rows( result );
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event_data->frames = new FrameData[event_data->frame_count];
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int id, last_id = 0;
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time_t timestamp, last_timestamp = event_data->start_time;
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double delta, last_delta = 0.0;
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while ( ( dbrow = mysql_fetch_row( result ) ) ) {
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id = atoi(dbrow[0]);
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timestamp = atoi(dbrow[1]);
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delta = atof(dbrow[2]);
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int id_diff = id - last_id;
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double frame_delta = (delta-last_delta)/id_diff;
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if ( id_diff > 1 ) {
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for ( int i = last_id+1; i < id; i++ ) {
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event_data->frames[i-1].timestamp = (time_t)(last_timestamp + ((i-last_id)*frame_delta));
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event_data->frames[i-1].offset = (time_t)(event_data->frames[i-1].timestamp-event_data->start_time);
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event_data->frames[i-1].delta = frame_delta;
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event_data->frames[i-1].in_db = false;
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}
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}
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event_data->frames[id-1].timestamp = timestamp;
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event_data->frames[id-1].offset = (time_t)(event_data->frames[id-1].timestamp-event_data->start_time);
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event_data->frames[id-1].delta = id>1?frame_delta:0.0;
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event_data->frames[id-1].in_db = true;
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last_id = id;
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last_delta = delta;
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last_timestamp = timestamp;
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}
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if ( mysql_errno( &dbconn ) ) {
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Error( "Can't fetch row: %s", mysql_error( &dbconn ) );
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exit( mysql_errno( &dbconn ) );
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}
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//for ( int i = 0; i < 250; i++ )
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//{
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//Info( "%d -> %d @ %f (%d)", i+1, event_data->frames[i].timestamp, event_data->frames[i].delta, event_data->frames[i].in_db );
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//}
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mysql_free_result( result );
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if ( forceEventChange || mode == MODE_ALL_GAPLESS ) {
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if ( replay_rate > 0 )
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curr_stream_time = event_data->frames[0].timestamp;
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else
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curr_stream_time = event_data->frames[event_data->frame_count-1].timestamp;
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}
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Debug( 2, "Event:%ld, Frames:%ld, Duration: %.2f", event_data->event_id, event_data->frame_count, event_data->duration );
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return( true );
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}
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void EventStream::processCommand( const CmdMsg *msg ) {
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Debug( 2, "Got message, type %d, msg %d", msg->msg_type, msg->msg_data[0] );
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// Check for incoming command
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switch( (MsgCommand)msg->msg_data[0] ) {
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case CMD_PAUSE :
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{
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Debug( 1, "Got PAUSE command" );
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// Set paused flag
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paused = true;
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replay_rate = ZM_RATE_BASE;
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last_frame_sent = TV_2_FLOAT( now );
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break;
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}
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case CMD_PLAY :
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{
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Debug( 1, "Got PLAY command" );
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if ( paused )
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{
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// Clear paused flag
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paused = false;
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}
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// If we are in single event mode and at the last frame, replay the current event
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if ( (mode == MODE_SINGLE) && ((unsigned int)curr_frame_id == event_data->frame_count) )
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curr_frame_id = 1;
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replay_rate = ZM_RATE_BASE;
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break;
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}
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case CMD_VARPLAY :
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{
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Debug( 1, "Got VARPLAY command" );
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if ( paused )
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{
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// Clear paused flag
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paused = false;
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}
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replay_rate = ntohs(((unsigned char)msg->msg_data[2]<<8)|(unsigned char)msg->msg_data[1])-32768;
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break;
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}
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case CMD_STOP :
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{
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Debug( 1, "Got STOP command" );
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// Clear paused flag
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paused = false;
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break;
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}
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case CMD_FASTFWD :
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{
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Debug( 1, "Got FAST FWD command" );
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if ( paused ) {
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// Clear paused flag
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paused = false;
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}
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// Set play rate
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switch ( replay_rate ) {
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case 2 * ZM_RATE_BASE :
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replay_rate = 5 * ZM_RATE_BASE;
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break;
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case 5 * ZM_RATE_BASE :
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replay_rate = 10 * ZM_RATE_BASE;
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break;
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case 10 * ZM_RATE_BASE :
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replay_rate = 25 * ZM_RATE_BASE;
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break;
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case 25 * ZM_RATE_BASE :
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case 50 * ZM_RATE_BASE :
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replay_rate = 50 * ZM_RATE_BASE;
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break;
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default :
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replay_rate = 2 * ZM_RATE_BASE;
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break;
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}
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break;
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}
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case CMD_SLOWFWD :
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{
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Debug( 1, "Got SLOW FWD command" );
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// Set paused flag
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paused = true;
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// Set play rate
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replay_rate = ZM_RATE_BASE;
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// Set step
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step = 1;
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break;
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}
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case CMD_SLOWREV :
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{
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Debug( 1, "Got SLOW REV command" );
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// Set paused flag
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paused = true;
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// Set play rate
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replay_rate = ZM_RATE_BASE;
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// Set step
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step = -1;
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break;
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}
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case CMD_FASTREV :
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{
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Debug( 1, "Got FAST REV command" );
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if ( paused ) {
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// Clear paused flag
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paused = false;
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}
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// Set play rate
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switch ( replay_rate ) {
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case -2 * ZM_RATE_BASE :
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replay_rate = -5 * ZM_RATE_BASE;
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break;
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case -5 * ZM_RATE_BASE :
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replay_rate = -10 * ZM_RATE_BASE;
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break;
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case -10 * ZM_RATE_BASE :
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replay_rate = -25 * ZM_RATE_BASE;
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break;
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case -25 * ZM_RATE_BASE :
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case -50 * ZM_RATE_BASE :
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replay_rate = -50 * ZM_RATE_BASE;
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break;
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default :
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replay_rate = -2 * ZM_RATE_BASE;
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break;
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}
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break;
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}
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case CMD_ZOOMIN :
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{
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x = ((unsigned char)msg->msg_data[1]<<8)|(unsigned char)msg->msg_data[2];
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y = ((unsigned char)msg->msg_data[3]<<8)|(unsigned char)msg->msg_data[4];
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Debug( 1, "Got ZOOM IN command, to %d,%d", x, y );
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switch ( zoom ) {
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case 100:
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zoom = 150;
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break;
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case 150:
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zoom = 200;
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break;
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case 200:
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zoom = 300;
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break;
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case 300:
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zoom = 400;
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break;
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case 400:
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default :
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zoom = 500;
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break;
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}
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break;
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}
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case CMD_ZOOMOUT :
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{
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Debug( 1, "Got ZOOM OUT command" );
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switch ( zoom ) {
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case 500:
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zoom = 400;
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break;
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case 400:
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zoom = 300;
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break;
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case 300:
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zoom = 200;
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break;
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case 200:
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zoom = 150;
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break;
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case 150:
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default :
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zoom = 100;
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break;
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}
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break;
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}
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case CMD_PAN :
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{
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x = ((unsigned char)msg->msg_data[1]<<8)|(unsigned char)msg->msg_data[2];
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y = ((unsigned char)msg->msg_data[3]<<8)|(unsigned char)msg->msg_data[4];
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Debug( 1, "Got PAN command, to %d,%d", x, y );
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break;
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}
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case CMD_SCALE :
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{
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scale = ((unsigned char)msg->msg_data[1]<<8)|(unsigned char)msg->msg_data[2];
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Debug( 1, "Got SCALE command, to %d", scale );
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break;
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}
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case CMD_PREV :
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{
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Debug( 1, "Got PREV command" );
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if ( replay_rate >= 0 )
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curr_frame_id = 0;
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else
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curr_frame_id = event_data->frame_count+1;
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paused = false;
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forceEventChange = true;
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break;
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}
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case CMD_NEXT :
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{
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Debug( 1, "Got NEXT command" );
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if ( replay_rate >= 0 )
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curr_frame_id = event_data->frame_count+1;
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else
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curr_frame_id = 0;
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paused = false;
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forceEventChange = true;
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break;
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}
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case CMD_SEEK :
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{
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int offset = ((unsigned char)msg->msg_data[1]<<24)|((unsigned char)msg->msg_data[2]<<16)|((unsigned char)msg->msg_data[3]<<8)|(unsigned char)msg->msg_data[4];
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curr_frame_id = (int)(event_data->frame_count*offset/event_data->duration);
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Debug( 1, "Got SEEK command, to %d (new cfid: %d)", offset, curr_frame_id );
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break;
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}
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case CMD_QUERY :
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{
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Debug( 1, "Got QUERY command, sending STATUS" );
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break;
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}
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case CMD_QUIT :
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{
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Info ("User initiated exit - CMD_QUIT");
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break;
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}
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default :
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{
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// Do nothing, for now
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}
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}
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struct {
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int event;
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int progress;
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int rate;
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int zoom;
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bool paused;
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} status_data;
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status_data.event = event_data->event_id;
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status_data.progress = (int)event_data->frames[curr_frame_id-1].offset;
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status_data.rate = replay_rate;
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status_data.zoom = zoom;
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status_data.paused = paused;
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Debug( 2, "E:%d, P:%d, p:%d R:%d, Z:%d",
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status_data.event,
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status_data.paused,
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status_data.progress,
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status_data.rate,
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status_data.zoom
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);
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DataMsg status_msg;
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status_msg.msg_type = MSG_DATA_EVENT;
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memcpy( &status_msg.msg_data, &status_data, sizeof(status_data) );
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if ( sendto( sd, &status_msg, sizeof(status_msg), MSG_DONTWAIT, (sockaddr *)&rem_addr, sizeof(rem_addr) ) < 0 ) {
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//if ( errno != EAGAIN )
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{
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Error( "Can't sendto on sd %d: %s", sd, strerror(errno) );
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exit( -1 );
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}
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}
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// quit after sending a status, if this was a quit request
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if ((MsgCommand)msg->msg_data[0]==CMD_QUIT)
|
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exit(0);
|
|
|
|
updateFrameRate( (double)event_data->frame_count/event_data->duration );
|
|
}
|
|
|
|
void EventStream::checkEventLoaded() {
|
|
bool reload_event = false;
|
|
static char sql[ZM_SQL_SML_BUFSIZ];
|
|
|
|
if ( curr_frame_id <= 0 ) {
|
|
snprintf( sql, sizeof(sql), "select Id from Events where MonitorId = %ld and Id < %ld order by Id desc limit 1", event_data->monitor_id, event_data->event_id );
|
|
reload_event = true;
|
|
} else if ( (unsigned int)curr_frame_id > event_data->frame_count ) {
|
|
snprintf( sql, sizeof(sql), "select Id from Events where MonitorId = %ld and Id > %ld order by Id asc limit 1", event_data->monitor_id, event_data->event_id );
|
|
reload_event = true;
|
|
}
|
|
|
|
if ( reload_event ) {
|
|
if ( forceEventChange || mode != MODE_SINGLE ) {
|
|
//Info( "SQL:%s", sql );
|
|
if ( mysql_query( &dbconn, sql ) ) {
|
|
Error( "Can't run query: %s", mysql_error( &dbconn ) );
|
|
exit( mysql_errno( &dbconn ) );
|
|
}
|
|
|
|
MYSQL_RES *result = mysql_store_result( &dbconn );
|
|
if ( !result ) {
|
|
Error( "Can't use query result: %s", mysql_error( &dbconn ) );
|
|
exit( mysql_errno( &dbconn ) );
|
|
}
|
|
MYSQL_ROW dbrow = mysql_fetch_row( result );
|
|
|
|
if ( mysql_errno( &dbconn ) ) {
|
|
Error( "Can't fetch row: %s", mysql_error( &dbconn ) );
|
|
exit( mysql_errno( &dbconn ) );
|
|
}
|
|
|
|
if ( dbrow ) {
|
|
int event_id = atoi(dbrow[0]);
|
|
Debug( 1, "Loading new event %d", event_id );
|
|
|
|
loadEventData( event_id );
|
|
|
|
Debug( 2, "Current frame id = %d", curr_frame_id );
|
|
if ( replay_rate < 0 )
|
|
curr_frame_id = event_data->frame_count;
|
|
else
|
|
curr_frame_id = 1;
|
|
Debug( 2, "New frame id = %d", curr_frame_id );
|
|
} else {
|
|
if ( curr_frame_id <= 0 )
|
|
curr_frame_id = 1;
|
|
else
|
|
curr_frame_id = event_data->frame_count;
|
|
paused = true;
|
|
}
|
|
mysql_free_result( result );
|
|
forceEventChange = false;
|
|
} else {
|
|
if ( curr_frame_id <= 0 )
|
|
curr_frame_id = 1;
|
|
else
|
|
curr_frame_id = event_data->frame_count;
|
|
paused = true;
|
|
}
|
|
}
|
|
}
|
|
|
|
bool EventStream::sendFrame( int delta_us ) {
|
|
Debug( 2, "Sending frame %d", curr_frame_id );
|
|
|
|
static char filepath[PATH_MAX];
|
|
static struct stat filestat;
|
|
FILE *fdj = NULL;
|
|
|
|
// This needs to be abstracted. If we are saving jpgs, then load the capture file. If we are only saving analysis frames, then send that.
|
|
if ( monitor->GetOptSaveJPEGs() & 1 ) {
|
|
snprintf( filepath, sizeof(filepath), Event::capture_file_format, event_data->path, curr_frame_id );
|
|
} else if ( monitor->GetOptSaveJPEGs() & 2 ) {
|
|
snprintf( filepath, sizeof(filepath), Event::analyse_file_format, event_data->path, curr_frame_id );
|
|
if ( stat( filepath, &filestat ) < 0 ) {
|
|
Debug(1, "%s not found, dalling back to capture");
|
|
snprintf( filepath, sizeof(filepath), Event::capture_file_format, event_data->path, curr_frame_id );
|
|
}
|
|
|
|
} else {
|
|
Fatal("JPEGS not saved.zms is not capable of streaming jpegs from mp4 yet");
|
|
return false;
|
|
}
|
|
|
|
#if HAVE_LIBAVCODEC
|
|
if ( type == STREAM_MPEG ) {
|
|
Image image( filepath );
|
|
|
|
Image *send_image = prepareImage( &image );
|
|
|
|
if ( !vid_stream ) {
|
|
vid_stream = new VideoStream( "pipe:", format, bitrate, effective_fps, send_image->Colours(), send_image->SubpixelOrder(), send_image->Width(), send_image->Height() );
|
|
fprintf( stdout, "Content-type: %s\r\n\r\n", vid_stream->MimeType() );
|
|
vid_stream->OpenStream();
|
|
}
|
|
/* double pts = */ vid_stream->EncodeFrame( send_image->Buffer(), send_image->Size(), config.mpeg_timed_frames, delta_us*1000 );
|
|
} else
|
|
#endif // HAVE_LIBAVCODEC
|
|
{
|
|
static unsigned char temp_img_buffer[ZM_MAX_IMAGE_SIZE];
|
|
|
|
int img_buffer_size = 0;
|
|
uint8_t *img_buffer = temp_img_buffer;
|
|
|
|
bool send_raw = ((scale>=ZM_SCALE_BASE)&&(zoom==ZM_SCALE_BASE));
|
|
|
|
fprintf( stdout, "--ZoneMinderFrame\r\n" );
|
|
|
|
if ( type != STREAM_JPEG )
|
|
send_raw = false;
|
|
|
|
if ( send_raw ) {
|
|
fdj = fopen( filepath, "rb" );
|
|
if ( !fdj ) {
|
|
Error( "Can't open %s: %s", filepath, strerror(errno) );
|
|
return( false );
|
|
}
|
|
#if HAVE_SENDFILE
|
|
if( fstat(fileno(fdj),&filestat) < 0 ) {
|
|
Error( "Failed getting information about file %s: %s", filepath, strerror(errno) );
|
|
return( false );
|
|
}
|
|
#else
|
|
img_buffer_size = fread( img_buffer, 1, sizeof(temp_img_buffer), fdj );
|
|
#endif
|
|
} else {
|
|
Image image( filepath );
|
|
|
|
Image *send_image = prepareImage( &image );
|
|
|
|
switch( type ) {
|
|
case STREAM_JPEG :
|
|
send_image->EncodeJpeg( img_buffer, &img_buffer_size );
|
|
break;
|
|
case STREAM_ZIP :
|
|
#if HAVE_ZLIB_H
|
|
unsigned long zip_buffer_size;
|
|
send_image->Zip( img_buffer, &zip_buffer_size );
|
|
img_buffer_size = zip_buffer_size;
|
|
break;
|
|
#else
|
|
Error("zlib is required for zipped images. Falling back to raw image");
|
|
type = STREAM_RAW;
|
|
#endif // HAVE_ZLIB_H
|
|
case STREAM_RAW :
|
|
img_buffer = (uint8_t*)(send_image->Buffer());
|
|
img_buffer_size = send_image->Size();
|
|
break;
|
|
default:
|
|
Fatal( "Unexpected frame type %d", type );
|
|
break;
|
|
}
|
|
}
|
|
|
|
switch( type ) {
|
|
case STREAM_JPEG :
|
|
fprintf( stdout, "Content-Type: image/jpeg\r\n" );
|
|
break;
|
|
case STREAM_RAW :
|
|
fprintf( stdout, "Content-Type: image/x-rgb\r\n" );
|
|
break;
|
|
case STREAM_ZIP :
|
|
fprintf( stdout, "Content-Type: image/x-rgbz\r\n" );
|
|
break;
|
|
default :
|
|
Fatal( "Unexpected frame type %d", type );
|
|
break;
|
|
}
|
|
|
|
|
|
if(send_raw) {
|
|
#if HAVE_SENDFILE
|
|
fprintf( stdout, "Content-Length: %d\r\n\r\n", (int)filestat.st_size );
|
|
if(zm_sendfile(fileno(stdout), fileno(fdj), 0, (int)filestat.st_size) != (int)filestat.st_size) {
|
|
/* sendfile() failed, use standard way instead */
|
|
img_buffer_size = fread( img_buffer, 1, sizeof(temp_img_buffer), fdj );
|
|
if ( fwrite( img_buffer, img_buffer_size, 1, stdout ) != 1 ) {
|
|
Error("Unable to send raw frame %u: %s",curr_frame_id,strerror(errno));
|
|
return( false );
|
|
}
|
|
}
|
|
#else
|
|
fprintf( stdout, "Content-Length: %d\r\n\r\n", img_buffer_size );
|
|
if ( fwrite( img_buffer, img_buffer_size, 1, stdout ) != 1 ) {
|
|
Error("Unable to send raw frame %u: %s",curr_frame_id,strerror(errno));
|
|
return( false );
|
|
}
|
|
#endif
|
|
fclose(fdj); /* Close the file handle */
|
|
} else {
|
|
fprintf( stdout, "Content-Length: %d\r\n\r\n", img_buffer_size );
|
|
if ( fwrite( img_buffer, img_buffer_size, 1, stdout ) != 1 ) {
|
|
Error( "Unable to send stream frame: %s", strerror(errno) );
|
|
return( false );
|
|
}
|
|
}
|
|
|
|
fprintf( stdout, "\r\n\r\n" );
|
|
fflush( stdout );
|
|
}
|
|
last_frame_sent = TV_2_FLOAT( now );
|
|
return( true );
|
|
}
|
|
|
|
void EventStream::runStream() {
|
|
Event::Initialise();
|
|
|
|
openComms();
|
|
|
|
checkInitialised();
|
|
|
|
updateFrameRate( (double)event_data->frame_count/event_data->duration );
|
|
|
|
if ( type == STREAM_JPEG )
|
|
fprintf( stdout, "Content-Type: multipart/x-mixed-replace;boundary=ZoneMinderFrame\r\n\r\n" );
|
|
|
|
if ( !event_data ) {
|
|
sendTextFrame( "No event data found" );
|
|
exit( 0 );
|
|
}
|
|
|
|
unsigned int delta_us = 0;
|
|
while( !zm_terminate ) {
|
|
gettimeofday( &now, NULL );
|
|
|
|
while(checkCommandQueue());
|
|
|
|
if ( step != 0 )
|
|
curr_frame_id += step;
|
|
|
|
checkEventLoaded();
|
|
|
|
// Get current frame data
|
|
FrameData *frame_data = &event_data->frames[curr_frame_id-1];
|
|
|
|
//Info( "cst:%.2f", curr_stream_time );
|
|
//Info( "cfid:%d", curr_frame_id );
|
|
//Info( "fdt:%d", frame_data->timestamp );
|
|
if ( !paused ) {
|
|
bool in_event = true;
|
|
double time_to_event = 0;
|
|
if ( replay_rate > 0 ) {
|
|
time_to_event = event_data->frames[0].timestamp - curr_stream_time;
|
|
if ( time_to_event > 0 )
|
|
in_event = false;
|
|
} else if ( replay_rate < 0 ) {
|
|
time_to_event = curr_stream_time - event_data->frames[event_data->frame_count-1].timestamp;
|
|
if ( time_to_event > 0 )
|
|
in_event = false;
|
|
}
|
|
if ( !in_event ) {
|
|
double actual_delta_time = TV_2_FLOAT( now ) - last_frame_sent;
|
|
if ( actual_delta_time > 1 ) {
|
|
static char frame_text[64];
|
|
snprintf( frame_text, sizeof(frame_text), "Time to next event = %d seconds", (int)time_to_event );
|
|
if ( !sendTextFrame( frame_text ) )
|
|
zm_terminate = true;
|
|
}
|
|
//else
|
|
//{
|
|
usleep( STREAM_PAUSE_WAIT );
|
|
//curr_stream_time += (replay_rate>0?1:-1) * ((1.0L * replay_rate * STREAM_PAUSE_WAIT)/(ZM_RATE_BASE * 1000000));
|
|
curr_stream_time += (1.0L * replay_rate * STREAM_PAUSE_WAIT)/(ZM_RATE_BASE * 1000000);
|
|
//}
|
|
continue;
|
|
}
|
|
}
|
|
|
|
// Figure out if we should send this frame
|
|
bool send_frame = false;
|
|
if ( !paused ) {
|
|
// If we are streaming and this frame is due to be sent
|
|
if ( ((curr_frame_id-1)%frame_mod) == 0 ) {
|
|
delta_us = (unsigned int)(frame_data->delta * 1000000);
|
|
// if effective > base we should speed up frame delivery
|
|
delta_us = (unsigned int)((delta_us * base_fps)/effective_fps);
|
|
// but must not exceed maxfps
|
|
delta_us = max(delta_us, 1000000 / maxfps);
|
|
send_frame = true;
|
|
}
|
|
} else if ( step != 0 ) {
|
|
// We are paused and are just stepping forward or backward one frame
|
|
step = 0;
|
|
send_frame = true;
|
|
} else {
|
|
// We are paused, and doing nothing
|
|
double actual_delta_time = TV_2_FLOAT( now ) - last_frame_sent;
|
|
if ( actual_delta_time > MAX_STREAM_DELAY ) {
|
|
// Send keepalive
|
|
Debug( 2, "Sending keepalive frame" );
|
|
send_frame = true;
|
|
}
|
|
}
|
|
|
|
if ( send_frame )
|
|
if ( !sendFrame( delta_us ) )
|
|
zm_terminate = true;
|
|
|
|
curr_stream_time = frame_data->timestamp;
|
|
|
|
if ( !paused ) {
|
|
curr_frame_id += replay_rate>0?1:-1;
|
|
if ( send_frame && type != STREAM_MPEG ) {
|
|
Debug( 3, "dUs: %d", delta_us );
|
|
usleep( delta_us );
|
|
}
|
|
} else {
|
|
usleep( (unsigned long)((1000000 * ZM_RATE_BASE)/((base_fps?base_fps:1)*abs(replay_rate*2))) );
|
|
}
|
|
} // end while ! zm_terminate
|
|
#if HAVE_LIBAVCODEC
|
|
if ( type == STREAM_MPEG )
|
|
delete vid_stream;
|
|
#endif // HAVE_LIBAVCODEC
|
|
|
|
closeComms();
|
|
}
|