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// Copyright 2020 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_DECODER_H_
#define THIRD_PARTY_BLINK_RENDERER_MODULES_WEBCODECS_AUDIO_DECODER_H_
#include <stdint.h>
#include <memory>
#include "media/base/audio_decoder.h"
#include "media/base/media_types.h"
#include "media/base/status.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_webcodecs_error_callback.h"
#include "third_party/blink/renderer/modules/modules_export.h"
#include "third_party/blink/renderer/modules/webcodecs/decoder_template.h"
#include "third_party/blink/renderer/platform/bindings/script_wrappable.h"
#include "third_party/blink/renderer/platform/heap/garbage_collected.h"
#include "third_party/blink/renderer/platform/heap/member.h"
namespace media {
class AudioBuffer;
class DecoderBuffer;
class MediaLog;
} // namespace media
namespace blink {
class AudioData;
class AudioDecoderConfig;
class AudioDecoderSupport;
class EncodedAudioChunk;
class ExceptionState;
class AudioDecoderInit;
class V8AudioDataOutputCallback;
class MODULES_EXPORT AudioDecoderTraits {
public:
using InitType = AudioDecoderInit;
using OutputType = AudioData;
using MediaOutputType = media::AudioBuffer;
using MediaDecoderType = media::AudioDecoder;
using OutputCallbackType = V8AudioDataOutputCallback;
using ConfigType = AudioDecoderConfig;
using MediaConfigType = media::AudioDecoderConfig;
using InputType = EncodedAudioChunk;
static constexpr bool kNeedsGpuFactories = false;
static std::unique_ptr<MediaDecoderType> CreateDecoder(
ExecutionContext& execution_context,
media::GpuVideoAcceleratorFactories* gpu_factories,
media::MediaLog* media_log);
static void InitializeDecoder(MediaDecoderType& decoder,
bool low_delay,
const MediaConfigType& media_config,
MediaDecoderType::InitCB init_cb,
MediaDecoderType::OutputCB output_cb);
static int GetMaxDecodeRequests(const MediaDecoderType& decoder);
static void UpdateDecoderLog(const MediaDecoderType& decoder,
const MediaConfigType& media_config,
media::MediaLog* media_log);
static const char* GetName();
};
class MODULES_EXPORT AudioDecoder : public DecoderTemplate<AudioDecoderTraits> {
DEFINE_WRAPPERTYPEINFO();
public:
static AudioDecoder* Create(ScriptState*,
const AudioDecoderInit*,
ExceptionState&);
static ScriptPromise<AudioDecoderSupport>
isConfigSupported(ScriptState*, const AudioDecoderConfig*, ExceptionState&);
// Returns parsed AudioType if the configuration is valid.
static std::optional<media::AudioType> IsValidAudioDecoderConfig(
const AudioDecoderConfig& config,
String* js_error_message);
// For use by MediaSource and by ::MakeMediaConfig.
static std::optional<media::AudioDecoderConfig> MakeMediaAudioDecoderConfig(
const ConfigType& config,
String* js_error_message);
AudioDecoder(ScriptState*, const AudioDecoderInit*, ExceptionState&);
~AudioDecoder() override = default;
// EventTarget interface
const AtomicString& InterfaceName() const override;
protected:
bool IsValidConfig(const ConfigType& config,
String* js_error_message) override;
std::optional<media::AudioDecoderConfig> MakeMediaConfig(
const ConfigType& config,
String* js_error_message) override;
media::DecoderStatus::Or<scoped_refptr<media::DecoderBuffer>> MakeInput(
const InputType& chunk,
bool verify_key_frame) override;
media::DecoderStatus::Or<OutputType*> MakeOutput(
scoped_refptr<MediaOutputType> output,
ExecutionContext* context) override;
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_MODULES_WEBCODECS_AUDIO_DECODER_H_
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