C++ (Cpp) FFMS_Index::CompareFileSignatureの例

コード例 #1

ファイル: audiosource.cpp プロジェクト: zzlee/ffms2

FFMS_AudioSource::FFMS_AudioSource(const char *SourceFile, FFMS_Index &Index, int Track)
: Delay(0)
, MaxCacheBlocks(50)
, BytesPerSample(0)
, NeedsResample(false)
, CurrentSample(-1)
, PacketNumber(0)
, CurrentFrame(NULL)
, TrackNumber(Track)
, SeekOffset(0)
, Index(Index)
{
	if (Track < 0 || Track >= static_cast<int>(Index.size()))
		throw FFMS_Exception(FFMS_ERROR_INDEX, FFMS_ERROR_INVALID_ARGUMENT,
			"Out of bounds track index selected");

	if (Index[Track].TT != FFMS_TYPE_AUDIO)
		throw FFMS_Exception(FFMS_ERROR_INDEX, FFMS_ERROR_INVALID_ARGUMENT,
			"Not an audio track");

	if (Index[Track].empty())
		throw FFMS_Exception(FFMS_ERROR_INDEX, FFMS_ERROR_INVALID_ARGUMENT,
			"Audio track contains no audio frames");

	if (!Index.CompareFileSignature(SourceFile))
		throw FFMS_Exception(FFMS_ERROR_INDEX, FFMS_ERROR_FILE_MISMATCH,
			"The index does not match the source file");

	Frames = Index[Track];

	Index.AddRef();
}

コード例 #2

ファイル: videosource.cpp プロジェクト: zzlee/ffms2

FFMS_VideoSource::FFMS_VideoSource(const char *SourceFile, FFMS_Index &Index, int Track, int Threads)
: Index(Index)
, CodecContext(NULL)
{
	if (Track < 0 || Track >= static_cast<int>(Index.size()))
		throw FFMS_Exception(FFMS_ERROR_INDEX, FFMS_ERROR_INVALID_ARGUMENT,
			"Out of bounds track index selected");

	if (Index[Track].TT != FFMS_TYPE_VIDEO)
		throw FFMS_Exception(FFMS_ERROR_INDEX, FFMS_ERROR_INVALID_ARGUMENT,
			"Not a video track");

	if (Index[Track].empty())
		throw FFMS_Exception(FFMS_ERROR_INDEX, FFMS_ERROR_INVALID_ARGUMENT,
			"Video track contains no frames");

	if (!Index.CompareFileSignature(SourceFile))
		throw FFMS_Exception(FFMS_ERROR_INDEX, FFMS_ERROR_FILE_MISMATCH,
			"The index does not match the source file");

	Frames = Index[Track];
	VideoTrack = Track;

	memset(&VP, 0, sizeof(VP));
	SWS = NULL;
	LastFrameNum = 0;
	CurrentFrame = 1;
	DelayCounter = 0;
	InitialDecode = 1;

	LastFrameHeight = -1;
	LastFrameWidth = -1;
	LastFramePixelFormat = PIX_FMT_NONE;

	TargetHeight = -1;
	TargetWidth = -1;
	TargetResizer = 0;

	OutputFormat = PIX_FMT_NONE;
	OutputColorSpace = AVCOL_SPC_UNSPECIFIED;
	OutputColorRange = AVCOL_RANGE_UNSPECIFIED;

	InputFormatOverridden = false;
	InputFormat = PIX_FMT_NONE;
	InputColorSpace = AVCOL_SPC_UNSPECIFIED;
	InputColorRange = AVCOL_RANGE_UNSPECIFIED;
	if (Threads < 1)
		DecodingThreads = GetNumberOfLogicalCPUs();
	else
		DecodingThreads = Threads;
	DecodeFrame = avcodec_alloc_frame();
	LastDecodedFrame = avcodec_alloc_frame();

	// Dummy allocations so the unallocated case doesn't have to be handled later
	avpicture_alloc(&SWSFrame, PIX_FMT_GRAY8, 16, 16);

	Index.AddRef();
}

コード例 #3

ファイル: audiosource.cpp プロジェクト: slajar/ffms2

FFMS_AudioSource::FFMS_AudioSource(const char *SourceFile, FFMS_Index &Index, int Track)
: TrackNumber(Track)
{
	if (Track < 0 || Track >= static_cast<int>(Index.size()))
		throw FFMS_Exception(FFMS_ERROR_INDEX, FFMS_ERROR_INVALID_ARGUMENT,
			"Out of bounds track index selected");

	if (Index[Track].TT != FFMS_TYPE_AUDIO)
		throw FFMS_Exception(FFMS_ERROR_INDEX, FFMS_ERROR_INVALID_ARGUMENT,
			"Not an audio track");

	if (Index[Track].empty())
		throw FFMS_Exception(FFMS_ERROR_INDEX, FFMS_ERROR_INVALID_ARGUMENT,
			"Audio track contains no audio frames");

	if (!Index.CompareFileSignature(SourceFile))
		throw FFMS_Exception(FFMS_ERROR_INDEX, FFMS_ERROR_FILE_MISMATCH,
			"The index does not match the source file");

	Frames = Index[Track];
}

コード例 #4

ファイル: videosource.cpp プロジェクト: darealshinji/vapoursynth-plugins

FFMS_VideoSource::FFMS_VideoSource(const char *SourceFile, FFMS_Index &Index, int Track, int Threads)
: Index(Index)
, CodecContext(nullptr)
{
	if (Track < 0 || Track >= static_cast<int>(Index.size()))
		throw FFMS_Exception(FFMS_ERROR_INDEX, FFMS_ERROR_INVALID_ARGUMENT,
			"Out of bounds track index selected");

	if (Index[Track].TT != FFMS_TYPE_VIDEO)
		throw FFMS_Exception(FFMS_ERROR_INDEX, FFMS_ERROR_INVALID_ARGUMENT,
			"Not a video track");

	if (Index[Track].empty())
		throw FFMS_Exception(FFMS_ERROR_INDEX, FFMS_ERROR_INVALID_ARGUMENT,
			"Video track contains no frames");

	if (!Index.CompareFileSignature(SourceFile))
		throw FFMS_Exception(FFMS_ERROR_INDEX, FFMS_ERROR_FILE_MISMATCH,
			"The index does not match the source file");

	Frames = Index[Track];
	VideoTrack = Track;

	VP = {};
	LocalFrame = {};
	SWS = nullptr;
	LastFrameNum = 0;
	CurrentFrame = 1;
	DelayCounter = 0;
	InitialDecode = 1;

	LastFrameHeight = -1;
	LastFrameWidth = -1;
	LastFramePixelFormat = FFMS_PIX_FMT(NONE);

	TargetHeight = -1;
	TargetWidth = -1;
	TargetResizer = 0;

	OutputFormat = FFMS_PIX_FMT(NONE);
	OutputColorSpace = AVCOL_SPC_UNSPECIFIED;
	OutputColorRange = AVCOL_RANGE_UNSPECIFIED;

	InputFormatOverridden = false;
	InputFormat = FFMS_PIX_FMT(NONE);
	InputColorSpace = AVCOL_SPC_UNSPECIFIED;
	InputColorRange = AVCOL_RANGE_UNSPECIFIED;
	if (Threads < 1)
		// libav current has issues with greater than 16 threads
		DecodingThreads = (std::min)(std::thread::hardware_concurrency(), 16u);
	else
		DecodingThreads = Threads;
	DecodeFrame = av_frame_alloc();
	LastDecodedFrame = av_frame_alloc();

	// Dummy allocations so the unallocated case doesn't have to be handled later
	if (av_image_alloc(SWSFrameData, SWSFrameLinesize, 16, 16, FFMS_PIX_FMT(GRAY8), 4) < 0)
		throw FFMS_Exception(FFMS_ERROR_INDEX, FFMS_ERROR_ALLOCATION_FAILED,
			"Could not allocate dummy frame.");

	Index.AddRef();
}