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// Copyright 2021 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef THIRD_PARTY_BLINK_RENDERER_MODULES_WEBCODECS_AUDIO_ENCODER_H_
#define THIRD_PARTY_BLINK_RENDERER_MODULES_WEBCODECS_AUDIO_ENCODER_H_
#include "media/base/audio_codecs.h"
#include "media/base/audio_encoder.h"
#include "third_party/blink/renderer/bindings/core/v8/active_script_wrappable.h"
#include "third_party/blink/renderer/bindings/core/v8/script_promise.h"
#include "third_party/blink/renderer/bindings/core/v8/script_promise_resolver.h"
#include "third_party/blink/renderer/bindings/modules/v8/v8_codec_state.h"
#include "third_party/blink/renderer/bindings/modules/v8/v8_encoded_audio_chunk_output_callback.h"
#include "third_party/blink/renderer/bindings/modules/v8/v8_webcodecs_error_callback.h"
#include "third_party/blink/renderer/modules/modules_export.h"
#include "third_party/blink/renderer/modules/webcodecs/audio_data.h"
#include "third_party/blink/renderer/modules/webcodecs/encoder_base.h"
#include "third_party/blink/renderer/platform/bindings/script_wrappable.h"
namespace blink {
class ExceptionState;
class AudioEncoderConfig;
class AudioEncoderInit;
class AudioEncoderSupport;
class MODULES_EXPORT AudioEncoderTraits {
public:
struct ParsedConfig final : public GarbageCollected<ParsedConfig> {
media::AudioEncoder::Options options;
String codec_string;
void Trace(Visitor*) const {}
};
struct AudioEncoderEncodeOptions
: public GarbageCollected<AudioEncoderEncodeOptions> {
void Trace(Visitor*) const {}
};
using Init = AudioEncoderInit;
using Config = AudioEncoderConfig;
using InternalConfig = ParsedConfig;
using Input = AudioData;
using EncodeOptions = AudioEncoderEncodeOptions;
using OutputChunk = EncodedAudioChunk;
using OutputCallback = V8EncodedAudioChunkOutputCallback;
using MediaEncoder = media::AudioEncoder;
// Can't be a virtual method, because it's used from base ctor.
static const char* GetName();
};
class MODULES_EXPORT AudioEncoder final
: public EncoderBase<AudioEncoderTraits> {
DEFINE_WRAPPERTYPEINFO();
public:
static AudioEncoder* Create(ScriptState*,
const AudioEncoderInit*,
ExceptionState&);
AudioEncoder(ScriptState*, const AudioEncoderInit*, ExceptionState&);
~AudioEncoder() override;
void encode(AudioData* data, ExceptionState& exception_state) {
return Base::encode(data, nullptr, exception_state);
}
// EventTarget interface
const AtomicString& InterfaceName() const override;
static ScriptPromise<AudioEncoderSupport>
isConfigSupported(ScriptState*, const AudioEncoderConfig*, ExceptionState&);
private:
using Base = EncoderBase<AudioEncoderTraits>;
using ParsedConfig = AudioEncoderTraits::ParsedConfig;
void ProcessEncode(Request* request) override;
void ProcessConfigure(Request* request) override;
void ProcessReconfigure(Request* request) override;
ParsedConfig* OnNewConfigure(const AudioEncoderConfig* opts,
ExceptionState&) override;
bool VerifyCodecSupport(ParsedConfig*, String* js_error_message) override;
void OnNewEncode(InputType* input, ExceptionState& exception_state) override;
bool CanReconfigure(ParsedConfig& original_config,
ParsedConfig& new_config) override;
std::unique_ptr<media::AudioEncoder> CreateMediaAudioEncoder(
const ParsedConfig& config);
void CallOutputCallback(
ParsedConfig* active_config,
uint32_t reset_count,
media::EncodedAudioBuffer encoded_buffer,
std::optional<media::AudioEncoder::CodecDescription> codec_desc);
DOMException* MakeOperationError(std::string error_msg,
media::EncoderStatus status);
DOMException* MakeEncodingError(std::string error_msg,
media::EncoderStatus status);
// True if MojoAudioEncoder is being used.
bool is_platform_encoder_ = false;
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_MODULES_WEBCODECS_AUDIO_ENCODER_H_
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