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Aegisub
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Somewhat working playpack position indicator, but restarting playback doesn't always work properly. 

Originally committed to SVN as r1122.
This commit is contained in:
Niels Martin Hansen 2007-04-23 17:34:39 +00:00
parent b63a2ade85
commit e4051efbf0
1 changed files with 26 additions and 11 deletions
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37
aegisub/audio_player_pulse.cpp
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@ -60,9 +60,9 @@ private:
bool is_playing;
// Audio data info
unsigned long start_frame;
unsigned long cur_frame;
unsigned long end_frame;
volatile unsigned long start_frame;
volatile unsigned long cur_frame;
volatile unsigned long end_frame;
unsigned long bpf; // bytes per frame
// Used for synchronising with async events
@ -79,6 +79,7 @@ private:
volatile pa_context_state_t cstate;
pa_stream *stream;
volatile pa_stream_state_t sstate;
volatile pa_usec_t play_start_time; // timestamp when playback was started
int paerror;
// Called by PA to notify about contetxt operation completion
@ -276,11 +277,17 @@ void PulseAudioPlayer::Play(__int64 start,__int64 count)
is_playing = true;
play_start_time = 0;
pa_stream_get_time(stream, &play_start_time);
PulseAudioPlayer::pa_stream_write(stream, pa_stream_writable_size(stream), this);
pa_operation *op = pa_stream_trigger(stream, (pa_stream_success_cb_t)pa_stream_success, this);
stream_success.Wait();
pa_operation_unref(op);
// Update timer
if (displayTimer && !displayTimer->IsRunning()) displayTimer->Start(15);
}
@ -293,22 +300,22 @@ void PulseAudioPlayer::Stop(bool timerToo)
is_playing = false;
pa_operation *op = pa_stream_cork(stream, 0, (pa_stream_success_cb_t)pa_stream_success, this);
stream_success.Wait();
pa_operation_unref(op);
start_frame = 0;
cur_frame = 0;
end_frame = 0;
// Flush the stream of data
//printf("Flushing stream\n");
op = pa_stream_flush(stream, (pa_stream_success_cb_t)pa_stream_success, this);
pa_operation *op = pa_stream_flush(stream, (pa_stream_success_cb_t)pa_stream_success, this);
stream_success.Wait();
pa_operation_unref(op);
// And unref it
printf("Stopped stream\n\n");
//printf("Stopped stream\n\n");
if (timerToo && displayTimer) {
displayTimer->Stop();
}
}
@ -350,8 +357,14 @@ __int64 PulseAudioPlayer::GetEndPosition()
// Get current position
__int64 PulseAudioPlayer::GetCurrentPosition()
{
// TODO: use pulse functions
return cur_frame;
if (!is_playing) return 0;
// Calculation duration we have played, in microseconds
pa_usec_t play_cur_time;
pa_stream_get_time(stream, &play_cur_time);
pa_usec_t playtime = play_cur_time - play_start_time;
return start_frame + playtime * provider->GetSampleRate() / (1000*1000);
}
@ -385,6 +398,8 @@ void PulseAudioPlayer::pa_stream_write(pa_stream *p, size_t length, PulseAudioPl
if (!thread->is_playing) return;
if (thread->cur_frame >= thread->end_frame) {
thread->is_playing = false;
pa_operation *op = pa_stream_drain(p, NULL, NULL);
pa_operation_unref(op);
//printf("PA requested more buffer, but no more to stream\n");
return;
}