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Avoid the render lock in AudioProcessingImpl::ProcessStream

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It seems unnecessary to lock it if not actually reinitializing.

Bug: webrtc:10205
Change-Id: Ib3292e1d640a92a7df77400aebe9583cf877f824
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/115460
Commit-Queue: Oskar Sundbom <ossu@webrtc.org>
Reviewed-by: Per Åhgren <peah@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#28060}
This commit is contained in:
Oskar Sundbom
2019-05-23 14:28:00 +02:00
committed by Commit Bot
parent a0e9943ca6
commit 4b27648d8b
2 changed files with 37 additions and 38 deletions
Download Patch File Download Diff File Expand all files Collapse all files

68
modules/audio_processing/audio_processing_impl.cc
View File

@ -486,22 +486,8 @@ int AudioProcessingImpl::Initialize(const ProcessingConfig& processing_config) {
int AudioProcessingImpl::MaybeInitializeRender(
const ProcessingConfig& processing_config) {
return MaybeInitialize(processing_config, false);
}
int AudioProcessingImpl::MaybeInitializeCapture(
const ProcessingConfig& processing_config,
bool force_initialization) {
return MaybeInitialize(processing_config, force_initialization);
}
// Calls InitializeLocked() if any of the audio parameters have changed from
// their current values (needs to be called while holding the crit_render_lock).
int AudioProcessingImpl::MaybeInitialize(
const ProcessingConfig& processing_config,
bool force_initialization) {
// Called from both threads. Thread check is therefore not possible.
if (processing_config == formats_.api_format && !force_initialization) {
if (processing_config == formats_.api_format) {
return kNoError;
}
@ -938,15 +924,23 @@ int AudioProcessingImpl::ProcessStream(const float* const* src,
reinitialization_required = UpdateActiveSubmoduleStates();
}
processing_config.input_stream() = input_config;
processing_config.output_stream() = output_config;
{
// Do conditional reinitialization.
rtc::CritScope cs_render(&crit_render_);
RETURN_ON_ERR(
MaybeInitializeCapture(processing_config, reinitialization_required));
if (processing_config.input_stream() != input_config) {
processing_config.input_stream() = input_config;
reinitialization_required = true;
}
if (processing_config.output_stream() != output_config) {
processing_config.output_stream() = output_config;
reinitialization_required = true;
}
if (reinitialization_required) {
// Reinitialize.
rtc::CritScope cs_render(&crit_render_);
rtc::CritScope cs_capture(&crit_capture_);
RETURN_ON_ERR(InitializeLocked(processing_config));
}
rtc::CritScope cs_capture(&crit_capture_);
RTC_DCHECK_EQ(processing_config.input_stream().num_frames(),
formats_.api_format.input_stream().num_frames());
@ -1216,17 +1210,29 @@ int AudioProcessingImpl::ProcessStream(AudioFrame* frame) {
reinitialization_required = UpdateActiveSubmoduleStates();
}
processing_config.input_stream().set_sample_rate_hz(frame->sample_rate_hz_);
processing_config.input_stream().set_num_channels(frame->num_channels_);
processing_config.output_stream().set_sample_rate_hz(frame->sample_rate_hz_);
processing_config.output_stream().set_num_channels(frame->num_channels_);
{
// Do conditional reinitialization.
reinitialization_required =
reinitialization_required ||
processing_config.input_stream().sample_rate_hz() !=
frame->sample_rate_hz_ ||
processing_config.input_stream().num_channels() != frame->num_channels_ ||
processing_config.output_stream().sample_rate_hz() !=
frame->sample_rate_hz_ ||
processing_config.output_stream().num_channels() != frame->num_channels_;
if (reinitialization_required) {
processing_config.input_stream().set_sample_rate_hz(frame->sample_rate_hz_);
processing_config.input_stream().set_num_channels(frame->num_channels_);
processing_config.output_stream().set_sample_rate_hz(
frame->sample_rate_hz_);
processing_config.output_stream().set_num_channels(frame->num_channels_);
// Reinitialize.
rtc::CritScope cs_render(&crit_render_);
RETURN_ON_ERR(
MaybeInitializeCapture(processing_config, reinitialization_required));
rtc::CritScope cs_capture(&crit_capture_);
RETURN_ON_ERR(InitializeLocked(processing_config));
}
rtc::CritScope cs_capture(&crit_capture_);
if (frame->samples_per_channel_ !=
formats_.api_format.input_stream().num_frames()) {

7
modules/audio_processing/audio_processing_impl.h
View File

@ -221,16 +221,9 @@ class AudioProcessingImpl : public AudioProcessing {
// that the capture thread blocks the render thread.
// The struct is modified in a single-threaded manner by holding both the
// render and capture locks.
int MaybeInitialize(const ProcessingConfig& config, bool force_initialization)
RTC_EXCLUSIVE_LOCKS_REQUIRED(crit_render_);
int MaybeInitializeRender(const ProcessingConfig& processing_config)
RTC_EXCLUSIVE_LOCKS_REQUIRED(crit_render_);
int MaybeInitializeCapture(const ProcessingConfig& processing_config,
bool force_initialization)
RTC_EXCLUSIVE_LOCKS_REQUIRED(crit_render_);
// Method for updating the state keeping track of the active submodules.
// Returns a bool indicating whether the state has changed.
bool UpdateActiveSubmoduleStates()