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Merge pull request #35993 from akien-mga/who-let-the-latency-out

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Workaround WebM playback bug after AudioServer latency fixes
This commit is contained in:
Rémi Verschelde 2020-02-08 15:36:50 +01:00 committed by GitHub
commit 6203c38fd1
4 changed files with 16 additions and 16 deletions
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6
modules/theora/video_stream_theora.cpp
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@ -363,8 +363,10 @@ void VideoStreamPlaybackTheora::set_file(const String &p_file) {
};
float VideoStreamPlaybackTheora::get_time() const {
return time - AudioServer::get_singleton()->get_output_latency() - delay_compensation; //-((get_total())/(float)vi.rate);
// FIXME: AudioServer output latency was fixed in af9bb0e, previously it used to
// systematically return 0. Now that it gives a proper latency, it broke this
// code where the delay compensation likely never really worked.
return time - /* AudioServer::get_singleton()->get_output_latency() - */ delay_compensation;
};
Ref<Texture> VideoStreamPlaybackTheora::get_texture() const {

15
modules/webm/video_stream_webm.cpp
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@ -393,17 +393,22 @@ int VideoStreamPlaybackWebm::get_mix_rate() const {
inline bool VideoStreamPlaybackWebm::has_enough_video_frames() const {
if (video_frames_pos > 0) {
const double audio_delay = AudioServer::get_singleton()->get_output_latency();
// FIXME: AudioServer output latency was fixed in af9bb0e, previously it used to
// systematically return 0. Now that it gives a proper latency, it broke this
// code where the delay compensation likely never really worked.
//const double audio_delay = AudioServer::get_singleton()->get_output_latency();
const double video_time = video_frames[video_frames_pos - 1]->time;
return video_time >= time + audio_delay + delay_compensation;
return video_time >= time + /* audio_delay + */ delay_compensation;
}
return false;
}
bool VideoStreamPlaybackWebm::should_process(WebMFrame &video_frame) {
const double audio_delay = AudioServer::get_singleton()->get_output_latency();
return video_frame.time >= time + audio_delay + delay_compensation;
// FIXME: AudioServer output latency was fixed in af9bb0e, previously it used to
// systematically return 0. Now that it gives a proper latency, it broke this
// code where the delay compensation likely never really worked.
//const double audio_delay = AudioServer::get_singleton()->get_output_latency();
return video_frame.time >= time + /* audio_delay + */ delay_compensation;
}
void VideoStreamPlaybackWebm::delete_pointers() {

8
servers/audio_server.cpp
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@ -29,6 +29,7 @@
/*************************************************************************/
#include "audio_server.h"
#include "core/io/resource_loader.h"
#include "core/os/file_access.h"
#include "core/os/os.h"
@ -36,14 +37,11 @@
#include "scene/resources/audio_stream_sample.h"
#include "servers/audio/audio_driver_dummy.h"
#include "servers/audio/effects/audio_effect_compressor.h"
#ifdef TOOLS_ENABLED
#define MARK_EDITED set_edited(true);
#else
#define MARK_EDITED
#endif
AudioDriver *AudioDriver::singleton = NULL;
@ -1405,8 +1403,6 @@ AudioServer::AudioServer() {
mix_frames = 0;
channel_count = 0;
to_mix = 0;
output_latency = 0;
output_latency_ticks = 0;
#ifdef DEBUG_ENABLED
prof_time = 0;
#endif

3
servers/audio_server.h
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@ -240,9 +240,6 @@ private:
Mutex *audio_data_lock;
float output_latency;
uint64_t output_latency_ticks;
void init_channels_and_buffers();
void _mix_step();