69 lines
2.3 KiB
C++
69 lines
2.3 KiB
C++
// Copyright 2014 Google Inc. All rights reserved.
|
|
//
|
|
// Use of this source code is governed by a BSD-style
|
|
// license that can be found in the LICENSE file or at
|
|
// https://developers.google.com/open-source/licenses/bsd
|
|
|
|
#ifndef MEDIA_BASE_MEDIA_PARSER_H_
|
|
#define MEDIA_BASE_MEDIA_PARSER_H_
|
|
|
|
#include <string>
|
|
#include <vector>
|
|
|
|
#include "base/callback.h"
|
|
#include "base/memory/ref_counted.h"
|
|
#include "base/memory/scoped_ptr.h"
|
|
#include "media/base/container_names.h"
|
|
|
|
namespace media {
|
|
|
|
class MediaSample;
|
|
class StreamInfo;
|
|
|
|
class MediaParser {
|
|
public:
|
|
MediaParser() {}
|
|
virtual ~MediaParser() {}
|
|
|
|
/// Called upon completion of parser initialization.
|
|
/// @param stream_info contains the stream info of all the elementary streams
|
|
/// within this file.
|
|
typedef base::Callback<
|
|
void(const std::vector<scoped_refptr<StreamInfo> >& stream_info)> InitCB;
|
|
|
|
/// Called when a new media sample has been parsed.
|
|
/// @param track_id is the track id of the new sample.
|
|
/// @param media_sample is the new media sample.
|
|
/// @return true if the sample is accepted, false if something was wrong
|
|
/// with the sample and a parsing error should be signaled.
|
|
typedef base::Callback<
|
|
bool(uint32 track_id, const scoped_refptr<MediaSample>& media_sample)>
|
|
NewSampleCB;
|
|
|
|
/// Called when a new potentially encrypted stream has been parsed.
|
|
/// @param init_data is the initialization data associated with the stream.
|
|
/// @param init_data_size is the number of bytes of the initialization data.
|
|
typedef base::Callback<void(MediaContainerName container_name,
|
|
scoped_ptr<uint8[]> init_data,
|
|
int init_data_size)> NeedKeyCB;
|
|
|
|
/// Initialize the parser with necessary callbacks. Must be called before any
|
|
/// data is passed to Parse().
|
|
/// @param init_cb will be called once enough data has been parsed to
|
|
/// determine the initial stream configurations.
|
|
virtual void Init(const InitCB& init_cb,
|
|
const NewSampleCB& new_sample_cb,
|
|
const NeedKeyCB& need_key_cb) = 0;
|
|
|
|
/// Should be called when there is new data to parse.
|
|
/// @return true if successful.
|
|
virtual bool Parse(const uint8* buf, int size) = 0;
|
|
|
|
private:
|
|
DISALLOW_COPY_AND_ASSIGN(MediaParser);
|
|
};
|
|
|
|
} // namespace media
|
|
|
|
#endif // MEDIA_BASE_MEDIA_PARSER_H_
|