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#ifndef __VIDEO_PARSER_HPP__
#define __VIDEO_PARSER_HPP__
#include <nvcuvid.h>
#include "opencv2/core/private.cuda.hpp"
#include "opencv2/cudacodec.hpp"
#include "frame_queue.hpp"
#include "video_decoder.hpp"
namespace cv { namespace cudacodec { namespace detail
{
class VideoParser
{
public:
VideoParser(VideoDecoder* videoDecoder, FrameQueue* frameQueue);
~VideoParser()
{
cuvidDestroyVideoParser(parser_);
}
bool parseVideoData(const unsigned char* data, size_t size, bool endOfStream);
bool hasError() const { return hasError_; }
private:
VideoDecoder* videoDecoder_;
FrameQueue* frameQueue_;
CUvideoparser parser_;
int unparsedPackets_;
volatile bool hasError_;
// Called when the decoder encounters a video format change (or initial sequence header)
// This particular implementation of the callback returns 0 in case the video format changes
// to something different than the original format. Returning 0 causes a stop of the app.
static int CUDAAPI HandleVideoSequence(void* pUserData, CUVIDEOFORMAT* pFormat);
// Called by the video parser to decode a single picture
// Since the parser will deliver data as fast as it can, we need to make sure that the picture
// index we're attempting to use for decode is no longer used for display
static int CUDAAPI HandlePictureDecode(void* pUserData, CUVIDPICPARAMS* pPicParams);
// Called by the video parser to display a video frame (in the case of field pictures, there may be
// 2 decode calls per 1 display call, since two fields make up one frame)
static int CUDAAPI HandlePictureDisplay(void* pUserData, CUVIDPARSERDISPINFO* pPicParams);
};
}}}
#endif // __VIDEO_PARSER_HPP__