blob: 572d7c9b00e100d29617971f27241f862de98ef8 [file] [log] [blame]
// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include <string>
#include <vector>
#include "media/base/media_log.h"
#include "media/webm/webm_parser.h"
namespace media {
class AudioDecoderConfig;
// Helper class used to parse an Audio element inside a TrackEntry element.
class WebMAudioClient : public WebMParserClient {
explicit WebMAudioClient(const LogCB& log_cb);
virtual ~WebMAudioClient();
// Reset this object's state so it can process a new audio track element.
void Reset();
// Initialize |config| with the data in |codec_id|, |codec_private|,
// |is_encrypted| and the fields parsed from the last audio track element this
// object was used to parse.
// Returns true if |config| was successfully initialized.
// Returns false if there was unexpected values in the provided parameters or
// audio track element fields.
bool InitializeConfig(const std::string& codec_id,
const std::vector<uint8>& codec_private,
const int64 seek_preroll,
const int64 codec_delay,
bool is_encrypted,
AudioDecoderConfig* config);
// WebMParserClient implementation.
virtual bool OnUInt(int id, int64 val) OVERRIDE;
virtual bool OnFloat(int id, double val) OVERRIDE;
LogCB log_cb_;
int channels_;
double samples_per_second_;
double output_samples_per_second_;
} // namespace media