mirror of
https://github.com/classilla/tenfourfox.git
synced 2024-12-29 17:32:21 +00:00
90 lines
2.5 KiB
C++
90 lines
2.5 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-*/
|
|
/* This Source Code Form is subject to the terms of the Mozilla Public
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this file,
|
|
* You can obtain one at http://mozilla.org/MPL/2.0/. */
|
|
|
|
#ifndef EbmlComposer_h_
|
|
#define EbmlComposer_h_
|
|
#include "nsTArray.h"
|
|
#include "ContainerWriter.h"
|
|
|
|
namespace mozilla {
|
|
|
|
/*
|
|
* A WebM muxer helper for package the valid WebM format.
|
|
*/
|
|
class EbmlComposer {
|
|
public:
|
|
EbmlComposer();
|
|
/*
|
|
* Assign the parameter which header required.
|
|
*/
|
|
void SetVideoConfig(uint32_t aWidth, uint32_t aHeight, uint32_t aDisplayWidth,
|
|
uint32_t aDisplayHeight, float aFrameRate);
|
|
|
|
void SetAudioConfig(uint32_t aSampleFreq, uint32_t aChannels,
|
|
uint32_t bitDepth);
|
|
/*
|
|
* Set the CodecPrivateData for writing in header.
|
|
*/
|
|
void SetAudioCodecPrivateData(nsTArray<uint8_t>& aBufs)
|
|
{
|
|
mCodecPrivateData.AppendElements(aBufs);
|
|
}
|
|
/*
|
|
* Generate the whole WebM header and output to mBuff.
|
|
*/
|
|
void GenerateHeader();
|
|
/*
|
|
* Insert media encoded buffer into muxer and it would be package
|
|
* into SimpleBlock. If no cluster is opened, new cluster will start for writing.
|
|
*/
|
|
void WriteSimpleBlock(EncodedFrame* aFrame);
|
|
/*
|
|
* Get valid cluster data.
|
|
*/
|
|
void ExtractBuffer(nsTArray<nsTArray<uint8_t> >* aDestBufs,
|
|
uint32_t aFlag = 0);
|
|
private:
|
|
// Move the metadata data to mClusterCanFlushBuffs.
|
|
void FinishMetadata();
|
|
// Close current cluster and move data to mClusterCanFlushBuffs.
|
|
void FinishCluster();
|
|
// The temporary storage for cluster data.
|
|
nsTArray<nsTArray<uint8_t> > mClusterBuffs;
|
|
// The storage which contain valid cluster data.
|
|
nsTArray<nsTArray<uint8_t> > mClusterCanFlushBuffs;
|
|
|
|
// Indicate the data types in mClusterBuffs.
|
|
enum {
|
|
FLUSH_NONE = 0,
|
|
FLUSH_METADATA = 1 << 0,
|
|
FLUSH_CLUSTER = 1 << 1
|
|
};
|
|
uint32_t mFlushState;
|
|
// Indicate the cluster header index in mClusterBuffs.
|
|
uint32_t mClusterHeaderIndex;
|
|
// The cluster length position.
|
|
uint64_t mClusterLengthLoc;
|
|
// Audio codec specific header data.
|
|
nsTArray<uint8_t> mCodecPrivateData;
|
|
|
|
// The timecode of the cluster.
|
|
uint64_t mClusterTimecode;
|
|
|
|
// Video configuration
|
|
int mWidth;
|
|
int mHeight;
|
|
int mDisplayWidth;
|
|
int mDisplayHeight;
|
|
float mFrameRate;
|
|
// Audio configuration
|
|
float mSampleFreq;
|
|
int mBitDepth;
|
|
int mChannels;
|
|
};
|
|
|
|
} // namespace mozilla
|
|
|
|
#endif
|