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Fix 2673 (#2675) 

* Change MaxFPS to DECIMAL(5,3) to handle values like 1/60 = 0.017

* When fps < 1 we may need to wait longer than 10s.  Also, we cannot sleep for a long time, because we may need to send a keep alive or check the command queue. So limit the sleep to 1s

* Bump version

* Update MaxFPS to Decimal(5,3)

* Fix missing ;
This commit is contained in:
Isaac Connor 2019-07-31 11:42:38 -04:00 committed by GitHub
parent 48ad8d47fc
commit 90cb5d018a
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GPG Key ID: 4AEE18F83AFDEB23
4 changed files with 68 additions and 28 deletions
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2
db/zm_create.sql.in
View File

@ -413,7 +413,7 @@ CREATE TABLE `MonitorPresets` (
`Width` smallint(5) unsigned default NULL,
`Height` smallint(5) unsigned default NULL,
`Palette` int(10) unsigned default NULL,
`MaxFPS` decimal(5,2) default NULL,
`MaxFPS` decimal(5,3) default NULL,
`Controllable` tinyint(3) unsigned NOT NULL default '0',
`ControlId` varchar(16) default NULL,
`ControlDevice` varchar(255) default NULL,

6
db/zm_update-1.33.13.sql Normal file
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@ -0,0 +1,6 @@
--
-- Add primary keys for Logs and Stats tables
--
SELECT "Modifying Monitors MaxFPS to DECIMAL(5,3)";
ALTER TABLE `Monitors` MODIFY `MaxFPS` decimal(5,3) default NULL;

52
src/zm_monitorstream.cpp
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@ -27,6 +27,8 @@
#include <arpa/inet.h>
#include <glob.h>
const int MAX_SLEEP_USEC=1000000; // 1 sec
bool MonitorStream::checkSwapPath(const char *path, bool create_path) {
struct stat stat_buf;
@ -425,11 +427,12 @@ bool MonitorStream::sendFrame(Image *image, struct timeval *timestamp) {
int frameSendTime = tvDiffMsec(frameStartTime, frameEndTime);
if ( frameSendTime > 1000/maxfps ) {
maxfps /= 1.5;
Warning("Frame send time %d msec too slow, throttling maxfps to %.2f", frameSendTime, maxfps);
Warning("Frame send time %d msec too slow, throttling maxfps to %.2f",
frameSendTime, maxfps);
}
}
last_frame_sent = TV_2_FLOAT(now);
return( true );
return true;
} // end bool MonitorStream::sendFrame( Image *image, struct timeval *timestamp )
void MonitorStream::runStream() {
@ -515,6 +518,23 @@ void MonitorStream::runStream() {
} // end if connkey & playback_buffer
float max_secs_since_last_sent_frame = 10.0; //should be > keep alive amount (5 secs)
// if MaxFPS < 0 as in 1/60 = 0.017 then we won't get another frame for 60 sec.
double capture_fps = monitor->GetFPS();
double capture_max_fps = monitor->GetCaptureMaxFPS();
if ( capture_max_fps && ( capture_fps > capture_max_fps ) ) {
Debug(1, "Using %.3f for fps instead of current fps %.3f", capture_max_fps, capture_fps);
capture_fps = capture_max_fps;
}
if ( capture_fps < 1 ) {
max_secs_since_last_sent_frame = 10/capture_fps;
Debug(1, "Adjusting max_secs_since_last_sent_frame to %.2f from current fps %.2f",
max_secs_since_last_sent_frame, monitor->GetFPS());
} else {
Debug(1, "Not Adjusting max_secs_since_last_sent_frame to %.2f from current fps %.2f",
max_secs_since_last_sent_frame, monitor->GetFPS());
}
while ( !zm_terminate ) {
bool got_command = false;
if ( feof(stdout) ) {
@ -638,7 +658,8 @@ void MonitorStream::runStream() {
// have a new image to send
int index = monitor->shared_data->last_write_index % monitor->image_buffer_count; // % shouldn't be neccessary
last_read_index = monitor->shared_data->last_write_index;
Debug( 2, "index: %d: frame_mod: %d frame count: %d paused(%d) delayed(%d)", index, frame_mod, frame_count, paused, delayed );
Debug(2, "index: %d: frame_mod: %d frame count: %d paused(%d) delayed(%d)",
index, frame_mod, frame_count, paused, delayed );
if ( (frame_mod == 1) || ((frame_count%frame_mod) == 0) ) {
if ( !paused && !delayed ) {
// Send the next frame
@ -655,11 +676,12 @@ void MonitorStream::runStream() {
temp_read_index = temp_write_index;
} else {
Debug(2, "Paused %d, delayed %d", paused, delayed);
double actual_delta_time = TV_2_FLOAT(now) - last_frame_sent;
if ( actual_delta_time > 5 ) {
if ( paused_image ) {
// Send keepalive
Debug(2, "Sending keepalive frame ");
Debug(2, "Sending keepalive frame because delta time %.2f > 5", actual_delta_time);
// Send the next frame
if ( !sendFrame(paused_image, &paused_timestamp) )
zm_terminate = true;
@ -698,11 +720,17 @@ void MonitorStream::runStream() {
} // end if buffered playback
frame_count++;
} else {
Debug(4,"Waiting for capture last_write_index=%u", monitor->shared_data->last_write_index);
Debug(3, "Waiting for capture last_write_index=%u", monitor->shared_data->last_write_index);
} // end if ( (unsigned int)last_read_index != monitor->shared_data->last_write_index )
unsigned long sleep_time = (unsigned long)((1000000 * ZM_RATE_BASE)/((base_fps?base_fps:1)*abs(replay_rate*2)));
Debug(4, "Sleeping for (%d)", sleep_time);
Debug(3, "Sleeping for (%d)", sleep_time);
if ( sleep_time > MAX_SLEEP_USEC ) {
// Shouldn't sleep for long because we need to check command queue, etc.
sleep_time = MAX_SLEEP_USEC;
}
Debug(3, "Sleeping for %dus", sleep_time);
usleep(sleep_time);
if ( ttl ) {
if ( (now.tv_sec - stream_start_time) > ttl ) {
@ -713,9 +741,15 @@ void MonitorStream::runStream() {
if ( ! last_frame_sent ) {
// If we didn't capture above, because frame_mod was bad? Then last_frame_sent will not have a value.
last_frame_sent = now.tv_sec;
Warning( "no last_frame_sent. Shouldn't happen. frame_mod was (%d) frame_count (%d) ", frame_mod, frame_count );
} else if ( (!paused) && ( (TV_2_FLOAT( now ) - last_frame_sent) > max_secs_since_last_sent_frame ) ) {
Error( "Terminating, last frame sent time %f secs more than maximum of %f", TV_2_FLOAT( now ) - last_frame_sent, max_secs_since_last_sent_frame );
Warning("no last_frame_sent. Shouldn't happen. frame_mod was (%d) frame_count (%d) ",
frame_mod, frame_count);
} else if (
(!paused)
&&
( (TV_2_FLOAT(now) - last_frame_sent) > max_secs_since_last_sent_frame )
) {
Error("Terminating, last frame sent time %f secs more than maximum of %f",
TV_2_FLOAT(now) - last_frame_sent, max_secs_since_last_sent_frame);
break;
}
} // end while

2
version
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@ -1 +1 @@
1.33.12
1.33.13