gecko-dev/dom/camera/CameraRecorderProfiles.h

234 строки
5.5 KiB
C++

/* 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 DOM_CAMERA_CAMERA_RECORDER_PROFILES_H
#define DOM_CAMERA_CAMERA_RECORDER_PROFILES_H
#include "nsISupportsImpl.h"
#include "nsMimeTypes.h"
#include "nsAutoPtr.h"
#include "nsTArray.h"
#include "jsapi.h"
#include "DictionaryHelpers.h"
#include "CameraCommon.h"
namespace mozilla {
class CameraControlImpl;
class RecorderVideoProfile
{
public:
RecorderVideoProfile(uint32_t aCameraId, uint32_t aQualityIndex);
virtual ~RecorderVideoProfile();
int GetBitrate() const { return mBitrate; }
int GetFramerate() const { return mFramerate; }
int GetWidth() const { return mWidth; }
int GetHeight() const { return mHeight; }
enum Codec {
H263,
H264,
MPEG4SP,
UNKNOWN
};
Codec GetCodec() const { return mCodec; }
const char* GetCodecName() const
{
switch (mCodec) {
case H263: return "h263";
case H264: return "h264";
case MPEG4SP: return "mpeg4sp";
default: return nullptr;
}
}
nsresult GetJsObject(JSContext* aCx, JSObject** aObject);
protected:
uint32_t mCameraId;
uint32_t mQualityIndex;
Codec mCodec;
int mBitrate;
int mFramerate;
int mWidth;
int mHeight;
};
class RecorderAudioProfile
{
public:
RecorderAudioProfile(uint32_t aCameraId, uint32_t aQualityIndex);
virtual ~RecorderAudioProfile();
int GetBitrate() const { return mBitrate; }
int GetSamplerate() const { return mSamplerate; }
int GetChannels() const { return mChannels; }
enum Codec {
AMRNB,
AMRWB,
AAC,
UNKNOWN
};
public:
Codec GetCodec() const { return mCodec; }
const char* GetCodecName() const
{
switch (mCodec) {
case AMRNB: return "amrnb";
case AMRWB: return "amrwb";
case AAC: return "aac";
default: return nullptr;
}
}
nsresult GetJsObject(JSContext* aCx, JSObject** aObject);
protected:
uint32_t mCameraId;
uint32_t mQualityIndex;
Codec mCodec;
int mBitrate;
int mSamplerate;
int mChannels;
};
class RecorderProfile
{
public:
NS_INLINE_DECL_THREADSAFE_REFCOUNTING(RecorderProfile)
RecorderProfile(uint32_t aCameraId, uint32_t aQualityIndex);
virtual const RecorderVideoProfile* GetVideoProfile() const = 0;
virtual const RecorderAudioProfile* GetAudioProfile() const = 0;
const char* GetName() const { return mName; }
enum FileFormat {
THREE_GPP,
MPEG4,
UNKNOWN
};
FileFormat GetFileFormat() const { return mFileFormat; }
const char* GetFileFormatName() const
{
switch (mFileFormat) {
case THREE_GPP: return "3gp";
case MPEG4: return "mp4";
default: return nullptr;
}
}
const char* GetFileMimeType() const
{
switch (mFileFormat) {
case THREE_GPP: return VIDEO_3GPP;
case MPEG4: return VIDEO_MP4;
default: return nullptr;
}
}
virtual nsresult GetJsObject(JSContext* aCx, JSObject** aObject) = 0;
protected:
virtual ~RecorderProfile();
uint32_t mCameraId;
uint32_t mQualityIndex;
const char* mName;
FileFormat mFileFormat;
};
template <class Audio, class Video>
class RecorderProfileBase : public RecorderProfile
{
public:
RecorderProfileBase(uint32_t aCameraId, uint32_t aQualityIndex)
: RecorderProfile(aCameraId, aQualityIndex)
, mVideo(aCameraId, aQualityIndex)
, mAudio(aCameraId, aQualityIndex)
{
DOM_CAMERA_LOGT("%s:%d : this=%p\n", __func__, __LINE__, this);
}
virtual ~RecorderProfileBase()
{
DOM_CAMERA_LOGT("%s:%d : this=%p\n", __func__, __LINE__, this);
}
const RecorderVideoProfile* GetVideoProfile() const { return &mVideo; }
const RecorderAudioProfile* GetAudioProfile() const { return &mAudio; }
nsresult GetJsObject(JSContext* aCx, JSObject** aObject)
{
NS_ENSURE_TRUE(aObject, NS_ERROR_INVALID_ARG);
const char* format = GetFileFormatName();
if (!format) {
// the profile must have a file format
return NS_ERROR_FAILURE;
}
JSObject* o = JS_NewObject(aCx, nullptr, nullptr, nullptr);
if (!o) {
return NS_ERROR_OUT_OF_MEMORY;
}
JSString* s = JS_NewStringCopyZ(aCx, format);
JS::Value v = STRING_TO_JSVAL(s);
if (!JS_SetProperty(aCx, o, "format", &v)) {
return NS_ERROR_FAILURE;
}
JSObject* video;
nsresult rv = mVideo.GetJsObject(aCx, &video);
NS_ENSURE_SUCCESS(rv, rv);
v = OBJECT_TO_JSVAL(video);
if (!JS_SetProperty(aCx, o, "video", &v)) {
return NS_ERROR_FAILURE;
}
JSObject* audio;
rv = mAudio.GetJsObject(aCx, &audio);
NS_ENSURE_SUCCESS(rv, rv);
v = OBJECT_TO_JSVAL(audio);
if (!JS_SetProperty(aCx, o, "audio", &v)) {
return NS_ERROR_FAILURE;
}
*aObject = o;
return NS_OK;
}
protected:
Video mVideo;
Audio mAudio;
};
class RecorderProfileManager
{
public:
NS_INLINE_DECL_THREADSAFE_REFCOUNTING(RecorderProfileManager)
virtual bool IsSupported(uint32_t aQualityIndex) const { return true; }
virtual already_AddRefed<RecorderProfile> Get(uint32_t aQualityIndex) const = 0;
uint32_t GetMaxQualityIndex() const { return mMaxQualityIndex; }
nsresult GetJsObject(JSContext* aCx, JSObject** aObject) const;
protected:
RecorderProfileManager(uint32_t aCameraId);
virtual ~RecorderProfileManager();
uint32_t mCameraId;
uint32_t mMaxQualityIndex;
};
} // namespace mozilla
#endif // DOM_CAMERA_CAMERA_RECORDER_PROFILES_H