82 lines
2.2 KiB
C++
82 lines
2.2 KiB
C++
// 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.
|
|
|
|
#ifndef MEDIA_FORMATS_MP2T_ES_PARSER_ADTS_H_
|
|
#define MEDIA_FORMATS_MP2T_ES_PARSER_ADTS_H_
|
|
|
|
#include <list>
|
|
#include <utility>
|
|
|
|
#include "base/callback.h"
|
|
#include "base/compiler_specific.h"
|
|
#include "base/memory/scoped_ptr.h"
|
|
#include "media/base/audio_stream_info.h"
|
|
#include "media/base/byte_queue.h"
|
|
#include "media/formats/mp2t/es_parser.h"
|
|
|
|
namespace edash_packager {
|
|
namespace media {
|
|
class AudioTimestampHelper;
|
|
class BitReader;
|
|
|
|
namespace mp2t {
|
|
|
|
class EsParserAdts : public EsParser {
|
|
public:
|
|
EsParserAdts(uint32 pid,
|
|
const NewStreamInfoCB& new_stream_info_cb,
|
|
const EmitSampleCB& emit_sample_cb,
|
|
bool sbr_in_mimetype);
|
|
virtual ~EsParserAdts();
|
|
|
|
// EsParser implementation.
|
|
virtual bool Parse(const uint8* buf, int size,
|
|
int64 pts,
|
|
int64 dts) OVERRIDE;
|
|
virtual void Flush() OVERRIDE;
|
|
virtual void Reset() OVERRIDE;
|
|
|
|
private:
|
|
// Used to link a PTS with a byte position in the ES stream.
|
|
typedef std::pair<int, int64> EsPts;
|
|
typedef std::list<EsPts> EsPtsList;
|
|
|
|
// Signal any audio configuration change (if any).
|
|
// Return false if the current audio config is not
|
|
// a supported ADTS audio config.
|
|
bool UpdateAudioConfiguration(const uint8* adts_frame, size_t frame_size);
|
|
|
|
// Discard some bytes from the ES stream.
|
|
void DiscardEs(int nbytes);
|
|
|
|
// Callbacks:
|
|
// - to signal a new audio configuration,
|
|
// - to send ES buffers.
|
|
NewStreamInfoCB new_stream_info_cb_;
|
|
EmitSampleCB emit_sample_cb_;
|
|
|
|
// True when AAC SBR extension is signalled in the mimetype
|
|
// (mp4a.40.5 in the codecs parameter).
|
|
bool sbr_in_mimetype_;
|
|
|
|
// Bytes of the ES stream that have not been emitted yet.
|
|
ByteQueue es_byte_queue_;
|
|
|
|
// List of PTS associated with a position in the ES stream.
|
|
EsPtsList pts_list_;
|
|
|
|
// Interpolated PTS for frames that don't have one.
|
|
scoped_ptr<AudioTimestampHelper> audio_timestamp_helper_;
|
|
|
|
scoped_refptr<StreamInfo> last_audio_decoder_config_;
|
|
|
|
DISALLOW_COPY_AND_ASSIGN(EsParserAdts);
|
|
};
|
|
|
|
} // namespace mp2t
|
|
} // namespace media
|
|
} // namespace edash_packager
|
|
|
|
#endif
|