blob: 65ace13a83d2d28bb35cba83c9e56ad63d2fd743 [file] [log] [blame]
/*
* Copyright 2014 Google Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name of Google Inc. nor the names of its contributors
* may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <memory>
#include "third_party/blink/public/platform/web_audio_source_provider.h"
#include "third_party/blink/renderer/platform/audio/audio_bus.h"
#include "third_party/blink/renderer/platform/mediastream/media_stream_web_audio_source.h"
namespace blink {
MediaStreamWebAudioSource::MediaStreamWebAudioSource(
std::unique_ptr<WebAudioSourceProvider> provider)
: web_audio_source_provider_(std::move(provider)) {}
MediaStreamWebAudioSource::~MediaStreamWebAudioSource() = default;
void MediaStreamWebAudioSource::ProvideInput(AudioBus* bus,
uint32_t frames_to_process) {
DCHECK(bus);
if (!bus)
return;
if (!web_audio_source_provider_) {
bus->Zero();
return;
}
// Wrap the AudioBus channel data using WebVector.
uint32_t n = bus->NumberOfChannels();
WebVector<float*> web_audio_data(n);
for (uint32_t i = 0; i < n; ++i)
web_audio_data[i] = bus->Channel(i)->MutableData();
web_audio_source_provider_->ProvideInput(web_audio_data, frames_to_process);
}
} // namespace blink