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More accurate seeking, remove debug and duplicated code. Correct type of curr_frame_id to match frame_count.

This commit is contained in:
Isaac Connor 2020-10-08 11:13:18 -04:00
parent 9cc7f0d360
commit 4afae7b738
2 changed files with 18 additions and 9 deletions
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25
src/zm_eventstream.cpp
View File

@ -527,7 +527,21 @@ void EventStream::processCommand(const CmdMsg *msg) {
Warning("Invalid offset, not seeking");
break;
}
// This should get us close, but not all frames will have the same duration
curr_frame_id = (int)(event_data->frame_count*offset/event_data->duration)+1;
if ( event_data->frames[curr_frame_id-1].offset > offset ) {
while ( (curr_frame_id --) && ( event_data->frames[curr_frame_id-1].offset > offset ) ) {
}
} else if ( event_data->frames[curr_frame_id-1].offset < offset ) {
while ( (curr_frame_id ++) && ( event_data->frames[curr_frame_id-1].offset > offset ) ) {
}
}
if ( curr_frame_id < 1 ) {
curr_frame_id = 1;
} else if ( curr_frame_id > event_data->last_frame_id ) {
curr_frame_id = event_data->last_frame_id;
}
curr_stream_time = event_data->frames[curr_frame_id-1].timestamp;
Debug(1, "Got SEEK command, to %f (new current frame id: %d offset %f)",
offset, curr_frame_id, event_data->frames[curr_frame_id-1].offset);
@ -837,7 +851,6 @@ void EventStream::runStream() {
uint64_t start_usec = start.tv_sec * 1000000 + start.tv_usec;
uint64_t last_frame_offset = 0;
bool in_event = true;
double time_to_event = 0;
while ( !zm_terminate ) {
@ -893,7 +906,6 @@ void EventStream::runStream() {
Debug(1, "Time since last send = %f = %f - %f", time_since_last_send, TV_2_FLOAT(now), last_frame_sent);
// > 1 second
if ( time_since_last_send > 1 ) {
Debug(1, "Sending time to next event frame");
static char frame_text[64];
snprintf(frame_text, sizeof(frame_text), "Time to %s event = %d seconds",
@ -901,11 +913,8 @@ void EventStream::runStream() {
if ( !sendTextFrame(frame_text) )
zm_terminate = true;
send_frame = false; // In case keepalive was set
} else {
Debug(1, "Not Sending time to next event frame because actual delta time is %f", actual_delta_time);
}
//else
//{
// FIXME ICON But we are not paused. We are somehow still in the event?
double sleep_time = (replay_rate>0?1:-1) * ((1.0L * replay_rate * STREAM_PAUSE_WAIT)/(ZM_RATE_BASE * 1000000));
//double sleep_time = (replay_rate * STREAM_PAUSE_WAIT)/(ZM_RATE_BASE * 1000000);
@ -1095,11 +1104,11 @@ bool EventStream::send_file(const char * filepath) {
} // end bool EventStream::send_file(const char * filepath)
bool EventStream::send_buffer(uint8_t* buffer, int size) {
if ( 0 > fprintf(stdout, "Content-Length: %d\r\n\r\n", img_buffer_size) ) {
if ( 0 > fprintf(stdout, "Content-Length: %d\r\n\r\n", size) ) {
Info("Unable to send raw frame %u: %s", curr_frame_id, strerror(errno));
return false;
}
rc = fwrite(img_buffer, img_buffer_size, 1, stdout);
int rc = fwrite(buffer, size, 1, stdout);
if ( 1 != rc ) {
Error("Unable to send raw frame %u: %s %d", curr_frame_id, strerror(errno), rc);

2
src/zm_eventstream.h
View File

@ -76,7 +76,7 @@ class EventStream : public StreamBase {
StreamMode mode;
bool forceEventChange;
int curr_frame_id;
unsigned long curr_frame_id;
double curr_stream_time;
bool send_frame;
struct timeval start; // clock time when started the event