mirror of
https://github.com/archlinuxarm/PKGBUILDs.git
synced 2024-11-28 22:57:37 +00:00
96 lines
4.1 KiB
Diff
96 lines
4.1 KiB
Diff
From ed5409740e3f6c13895a29b770d46d659973863e Mon Sep 17 00:00:00 2001
|
|
From: "dalecurtis@google.com"
|
|
<dalecurtis@google.com@0039d316-1c4b-4281-b951-d872f2087c98>
|
|
Date: Fri, 24 May 2013 23:54:45 +0000
|
|
Subject: [PATCH] Allow sample rate pass through on Linux.
|
|
|
|
Requiring the native output sample rate to avoid glitching appears
|
|
to have just been an issue with a poor tlength choice. xians and
|
|
I resolved this prior to turning PulseAudio on by default, but left
|
|
the native sample rate requirement in at the time.
|
|
|
|
Since "native sample rate" can change on the fly with PulseAudio
|
|
our approach of specifying FIX_RATE was incorrect. Allowing Pulse
|
|
to handle resampling lets us remove the FIX_RATE flag. It also
|
|
improves CPU usage in cases where Pulse can configure the output
|
|
device to match the requested sample rate.
|
|
|
|
BUG=229918
|
|
TEST=extensive manual checks for glitching.
|
|
R=xians@chromium.org
|
|
|
|
Review URL: https://codereview.chromium.org/15957002
|
|
|
|
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@202233 0039d316-1c4b-4281-b951-d872f2087c98
|
|
---
|
|
content/renderer/media/audio_renderer_mixer_manager.cc | 6 +++---
|
|
media/audio/pulse/audio_manager_pulse.cc | 6 +++++-
|
|
media/audio/pulse/pulse_util.cc | 6 +++---
|
|
3 files changed, 11 insertions(+), 7 deletions(-)
|
|
|
|
diff --git a/content/renderer/media/audio_renderer_mixer_manager.cc b/content/renderer/media/audio_renderer_mixer_manager.cc
|
|
index 7db67d1..0044d25 100644
|
|
--- a/content/renderer/media/audio_renderer_mixer_manager.cc
|
|
+++ b/content/renderer/media/audio_renderer_mixer_manager.cc
|
|
@@ -52,9 +52,9 @@ media::AudioRendererMixer* AudioRendererMixerManager::GetMixer(
|
|
return it->second.mixer;
|
|
}
|
|
|
|
- // On ChromeOS we can rely on the playback device to handle resampling, so
|
|
- // don't waste cycles on it here.
|
|
-#if defined(OS_CHROMEOS)
|
|
+ // On ChromeOS and Linux we can rely on the playback device to handle
|
|
+ // resampling, so don't waste cycles on it here.
|
|
+#if defined(OS_CHROMEOS) || defined(OS_LINUX)
|
|
int sample_rate = params.sample_rate();
|
|
#else
|
|
int sample_rate = hardware_config_->GetOutputSampleRate();
|
|
diff --git a/media/audio/pulse/audio_manager_pulse.cc b/media/audio/pulse/audio_manager_pulse.cc
|
|
index c127d17..fed919a 100644
|
|
--- a/media/audio/pulse/audio_manager_pulse.cc
|
|
+++ b/media/audio/pulse/audio_manager_pulse.cc
|
|
@@ -141,11 +141,15 @@ AudioParameters AudioManagerPulse::GetPreferredOutputStreamParameters(
|
|
int buffer_size = kDefaultOutputBufferSize;
|
|
int bits_per_sample = 16;
|
|
int input_channels = 0;
|
|
+ int sample_rate;
|
|
if (input_params.IsValid()) {
|
|
bits_per_sample = input_params.bits_per_sample();
|
|
channel_layout = input_params.channel_layout();
|
|
input_channels = input_params.input_channels();
|
|
buffer_size = std::min(buffer_size, input_params.frames_per_buffer());
|
|
+ sample_rate = input_params.sample_rate();
|
|
+ } else {
|
|
+ sample_rate = GetNativeSampleRate();
|
|
}
|
|
|
|
int user_buffer_size = GetUserBufferSize();
|
|
@@ -154,7 +158,7 @@ AudioParameters AudioManagerPulse::GetPreferredOutputStreamParameters(
|
|
|
|
return AudioParameters(
|
|
AudioParameters::AUDIO_PCM_LOW_LATENCY, channel_layout, input_channels,
|
|
- GetNativeSampleRate(), bits_per_sample, buffer_size);
|
|
+ sample_rate, bits_per_sample, buffer_size);
|
|
}
|
|
|
|
AudioOutputStream* AudioManagerPulse::MakeOutputStream(
|
|
diff --git a/media/audio/pulse/pulse_util.cc b/media/audio/pulse/pulse_util.cc
|
|
index 0a4734b..6a4dad1 100644
|
|
--- a/media/audio/pulse/pulse_util.cc
|
|
+++ b/media/audio/pulse/pulse_util.cc
|
|
@@ -289,9 +289,9 @@ bool CreateOutputStream(pa_threaded_mainloop** mainloop,
|
|
pa_stream_connect_playback(
|
|
*stream, NULL, &pa_buffer_attributes,
|
|
static_cast<pa_stream_flags_t>(
|
|
- PA_STREAM_FIX_RATE | PA_STREAM_INTERPOLATE_TIMING |
|
|
- PA_STREAM_ADJUST_LATENCY | PA_STREAM_AUTO_TIMING_UPDATE |
|
|
- PA_STREAM_NOT_MONOTONIC | PA_STREAM_START_CORKED),
|
|
+ PA_STREAM_INTERPOLATE_TIMING | PA_STREAM_ADJUST_LATENCY |
|
|
+ PA_STREAM_AUTO_TIMING_UPDATE | PA_STREAM_NOT_MONOTONIC |
|
|
+ PA_STREAM_START_CORKED),
|
|
NULL, NULL) == 0,
|
|
"pa_stream_connect_playback FAILED ");
|
|
|
|
--
|
|
1.8.2.2
|
|
|