BadaBitmap::BadaBitmap(const std::string& fileName) :
m_pixels(null),
m_width(0),
m_height(0)
{
if(s_image == null)
{
s_image = new Osp::Media::Image();
if(s_image->Construct() != E_SUCCESS)
{
AppAssertf(0, "BadaBitmap::BadaBitmap - could not construct image object.");
}
}
Osp::Base::String badaFile(fileName.c_str());
std::auto_ptr<Osp::Graphics::Bitmap> bitmap(s_image->DecodeN(badaFile, Osp::Graphics::BITMAP_PIXEL_FORMAT_ARGB8888));
AppAssertf(bitmap.get() != null, "BadaBitmap::BadaBitmap - could not load image %s", fileName.c_str());
m_width = bitmap->GetWidth();
m_height = bitmap->GetHeight();
copyBitmap(bitmap.get());
fixColors();
}
static void AddBitmapResource( WResID * name, ResMemFlags flags,
const char * filename )
/**************************************************************/
{
BitmapFileHeader head;
WResFileID handle;
RcStatus ret;
int err_code;
handle = RcIoOpenInput( filename, O_RDONLY | O_BINARY );
if( handle == NIL_HANDLE)
goto FILE_OPEN_ERROR;
ret = readBitmapFileHeader( handle, &head, &err_code );
if( ret != RS_OK )
goto READ_HEADER_ERROR;
if( head.Type != BITMAP_MAGIC )
goto NOT_BITMAP_ERROR;
ret = copyBitmap( &head, handle, name, flags, &err_code );
if( ret != RS_OK )
goto COPY_BITMAP_ERROR;
RCCLOSE( handle );
return;
FILE_OPEN_ERROR:
RcError( ERR_CANT_OPEN_FILE, filename, strerror( errno ) );
ErrorHasOccured = true;
RCFREE( name );
return;
READ_HEADER_ERROR:
ReportCopyError( ret, ERR_READING_BITMAP, filename, err_code );
ErrorHasOccured = true;
RCFREE( name );
RCCLOSE( handle );
return;
NOT_BITMAP_ERROR:
RcError( ERR_NOT_BITMAP_FILE, filename );
ErrorHasOccured = true;
RCFREE( name );
RCCLOSE( handle );
return;
COPY_BITMAP_ERROR:
ReportCopyError( ret, ERR_READING_BITMAP, filename, err_code );
ErrorHasOccured = true;
RCCLOSE( handle );
return;
}
/*!
Gets the \f$ frame \f$ th frame from the video and stores it in the image \f$ I \f$.
\param I : The vpImage used to stored the video's frame.
\param frame : The index of the frame which has to be read.
\return It returns true if the frame could be read. Else it returns false.
*/
bool vpFFMPEG::getFrame(vpImage<unsigned char> &I, unsigned int frame)
{
if (frame < frameNumber && streamWasInitialized== true)
{
int64_t targetPts = index[frame];
av_seek_frame(pFormatCtx,(int)videoStream,targetPts, AVSEEK_FLAG_ANY);
}
else
{
vpTRACE("Couldn't get a frame");
return false;
}
avcodec_flush_buffers(pCodecCtx) ;
int frameFinished ;
av_init_packet(packet);
while (av_read_frame (pFormatCtx, packet) >= 0)
{
if (packet->stream_index == (int)videoStream)
{
#if LIBAVCODEC_VERSION_INT < AV_VERSION_INT(52,72,2)
avcodec_decode_video(pCodecCtx, pFrame,
&frameFinished, packet->data, packet->size);
#else
avcodec_decode_video2(pCodecCtx, pFrame, &frameFinished, packet); // libavcodec >= 52.72.2 (0.6)
#endif
if (frameFinished)
{
if (color_type == vpFFMPEG::COLORED)
sws_scale(img_convert_ctx, pFrame->data, pFrame->linesize, 0, pCodecCtx->height, pFrameRGB->data, pFrameRGB->linesize);
else if (color_type == vpFFMPEG::GRAY_SCALED)
sws_scale(img_convert_ctx, pFrame->data, pFrame->linesize, 0, pCodecCtx->height, pFrameGRAY->data, pFrameGRAY->linesize);
copyBitmap(I);
break;
}
}
}
av_free_packet(packet);
return true;
}
/*!
Gets the Next frame in the video.
\param I : The vpImage used to stored the video's frame.
\return It returns true if the frame could be read. Else it returns false.
*/
bool vpFFMPEG::acquire(vpImage<unsigned char> &I)
{
int frameFinished ;
if (streamWasInitialized == false)
{
vpTRACE("Couldn't get a frame. The parameters have to be initialized before ");
return false;
}
av_init_packet(packet);
while (av_read_frame (pFormatCtx, packet) >= 0)
{
if (packet->stream_index == (int)videoStream)
{
#if LIBAVCODEC_VERSION_INT < AV_VERSION_INT(52,72,2)
avcodec_decode_video(pCodecCtx, pFrame,
&frameFinished, packet->data, packet->size);
#else
avcodec_decode_video2(pCodecCtx, pFrame, &frameFinished, packet); // libavcodec >= 52.72.2 (0.6)
#endif
if (frameFinished)
{
if (color_type == vpFFMPEG::COLORED)
sws_scale(img_convert_ctx, pFrame->data, pFrame->linesize, 0, pCodecCtx->height, pFrameRGB->data, pFrameRGB->linesize);
else if (color_type == vpFFMPEG::GRAY_SCALED)
sws_scale(img_convert_ctx, pFrame->data, pFrame->linesize, 0, pCodecCtx->height, pFrameGRAY->data, pFrameGRAY->linesize);
copyBitmap(I);
break;
}
}
}
av_free_packet(packet);
return true;
}
