add audio-buffer-size command line flag support to the input audio for all the platforms.

This is required to do some experiments with low buffer size for input audio.

BUG=363958
TEST=manual test with audio-buffer-size flag

Review URL: https://codereview.chromium.org/285233005

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@271673 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 7 insertions, 2 deletions

diff --git a/media/audio/android/audio_manager_android.cc b/media/audio/android/audio_manager_android.cc
index 66b23a2..733ece6 100644
--- a/media/audio/android/audio_manager_android.cc
+++ b/media/audio/android/audio_manager_android.cc
@@ -123,13 +123,18 @@ AudioParameters AudioManagerAndroid::GetInputStreamParameters(
   int buffer_size = Java_AudioManagerAndroid_getMinInputFrameSize(
       env, GetNativeOutputSampleRate(),
       ChannelLayoutToChannelCount(channel_layout));
+  buffer_size = buffer_size <= 0 ? kDefaultInputBufferSize : buffer_size;
   int effects = AudioParameters::NO_EFFECTS;
   effects |= Java_AudioManagerAndroid_shouldUseAcousticEchoCanceler(env) ?
       AudioParameters::ECHO_CANCELLER : AudioParameters::NO_EFFECTS;
+
+  int user_buffer_size = GetUserBufferSize();
+  if (user_buffer_size)
+    buffer_size = user_buffer_size;
+
   AudioParameters params(
       AudioParameters::AUDIO_PCM_LOW_LATENCY, channel_layout, 0,
-      GetNativeOutputSampleRate(), 16,
-      buffer_size <= 0 ? kDefaultInputBufferSize : buffer_size, effects);
+      GetNativeOutputSampleRate(), 16, buffer_size, effects);
   return params;
 }